1	// dear imgui, v1.92.2b
2	// (drawing and font code)
3
4	/*
5
6	Index of this file:
7
8	// [SECTION] STB libraries implementation
9	// [SECTION] Style functions
10	// [SECTION] ImDrawList
11	// [SECTION] ImTriangulator, ImDrawList concave polygon fill
12	// [SECTION] ImDrawListSplitter
13	// [SECTION] ImDrawData
14	// [SECTION] Helpers ShadeVertsXXX functions
15	// [SECTION] ImFontConfig
16	// [SECTION] ImFontAtlas, ImFontAtlasBuilder
17	// [SECTION] ImFontAtlas: backend for stb_truetype
18	// [SECTION] ImFontAtlas: glyph ranges helpers
19	// [SECTION] ImFontGlyphRangesBuilder
20	// [SECTION] ImFont
21	// [SECTION] ImGui Internal Render Helpers
22	// [SECTION] Decompression code
23	// [SECTION] Default font data (ProggyClean.ttf)
24
25	*/
26
27	#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
28	#define _CRT_SECURE_NO_WARNINGS
29	#endif
30
31	#ifndef IMGUI_DEFINE_MATH_OPERATORS
32	#define IMGUI_DEFINE_MATH_OPERATORS
33	#endif
34
35	#include "imgui.h"
36	#ifndef IMGUI_DISABLE
37	#include "imgui_internal.h"
38	#ifdef IMGUI_ENABLE_FREETYPE
39	#include "misc/freetype/imgui_freetype.h"
40	#endif
41
42	#include <stdio.h> // vsnprintf, sscanf, printf
43	#include <stdint.h> // intptr_t
44
45	// Visual Studio warnings
46	#ifdef _MSC_VER
47	#pragma warning (disable: 4127) // condition expression is constant
48	#pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff)
49	#pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
50	#pragma warning (disable: 26451) // [Static Analyzer] Arithmetic overflow : Using operator 'xxx' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator 'xxx' to avoid overflow(io.2).
51	#pragma warning (disable: 26812) // [Static Analyzer] The enum type 'xxx' is unscoped. Prefer 'enum class' over 'enum' (Enum.3). [MSVC Static Analyzer)
52	#endif
53
54	// Clang/GCC warnings with -Weverything
55	#if defined(__clang__)
56	#if __has_warning("-Wunknown-warning-option")
57	#pragma clang diagnostic ignored "-Wunknown-warning-option" // warning: unknown warning group 'xxx' // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great!
58	#endif
59	#pragma clang diagnostic ignored "-Wunknown-pragmas" // warning: unknown warning group 'xxx'
60	#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast // yes, they are more terse.
61	#pragma clang diagnostic ignored "-Wfloat-equal" // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants ok.
62	#pragma clang diagnostic ignored "-Wglobal-constructors" // warning: declaration requires a global destructor // similar to above, not sure what the exact difference is.
63	#pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
64	#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" // warning: zero as null pointer constant // some standard header variations use #define NULL 0
65	#pragma clang diagnostic ignored "-Wcomma" // warning: possible misuse of comma operator here
66	#pragma clang diagnostic ignored "-Wreserved-id-macro" // warning: macro name is a reserved identifier
67	#pragma clang diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
68	#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision
69	#pragma clang diagnostic ignored "-Wreserved-identifier" // warning: identifier '_Xxx' is reserved because it starts with '_' followed by a capital letter
70	#pragma clang diagnostic ignored "-Wunsafe-buffer-usage" // warning: 'xxx' is an unsafe pointer used for buffer access
71	#pragma clang diagnostic ignored "-Wnontrivial-memaccess" // warning: first argument in call to 'memset' is a pointer to non-trivially copyable type
72	#pragma clang diagnostic ignored "-Wcast-qual" // warning: cast from 'const xxxx *' to 'xxx *' drops const qualifier
73	#pragma clang diagnostic ignored "-Wswitch-default" // warning: 'switch' missing 'default' label
74	#elif defined(__GNUC__)
75	#pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind
76	#pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used
77	#pragma GCC diagnostic ignored "-Wfloat-equal" // warning: comparing floating-point with '==' or '!=' is unsafe
78	#pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function
79	#pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value
80	#pragma GCC diagnostic ignored "-Wstack-protector" // warning: stack protector not protecting local variables: variable length buffer
81	#pragma GCC diagnostic ignored "-Wstrict-overflow" // warning: assuming signed overflow does not occur when simplifying division / ..when changing X +- C1 cmp C2 to X cmp C2 -+ C1
82	#pragma GCC diagnostic ignored "-Wclass-memaccess" // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
83	#pragma GCC diagnostic ignored "-Wcast-qual" // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers
84	#endif
85
86	//-------------------------------------------------------------------------
87	// [SECTION] STB libraries implementation (for stb_truetype and stb_rect_pack)
88	//-------------------------------------------------------------------------
89
90	// Compile time options:
91	//#define IMGUI_STB_NAMESPACE ImStb
92	//#define IMGUI_STB_TRUETYPE_FILENAME "my_folder/stb_truetype.h"
93	//#define IMGUI_STB_RECT_PACK_FILENAME "my_folder/stb_rect_pack.h"
94	//#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
95	//#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
96
97	#ifdef IMGUI_STB_NAMESPACE
98	namespace IMGUI_STB_NAMESPACE
99	{
100	#endif
101
102	#ifdef _MSC_VER
103	#pragma warning (push)
104	#pragma warning (disable: 4456) // declaration of 'xx' hides previous local declaration
105	#pragma warning (disable: 6011) // (stb_rectpack) Dereferencing NULL pointer 'cur->next'.
106	#pragma warning (disable: 6385) // (stb_truetype) Reading invalid data from 'buffer': the readable size is '_Old_3`kernel_width' bytes, but '3' bytes may be read.
107	#pragma warning (disable: 28182) // (stb_rectpack) Dereferencing NULL pointer. 'cur' contains the same NULL value as 'cur->next' did.
108	#endif
109
110	#if defined(__clang__)
111	#pragma clang diagnostic push
112	#pragma clang diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used
113	#pragma clang diagnostic ignored "-Wmissing-prototypes"
114	#pragma clang diagnostic ignored "-Wimplicit-fallthrough"
115	#endif
116
117	#if defined(__GNUC__)
118	#pragma GCC diagnostic push
119	#pragma GCC diagnostic ignored "-Wtype-limits" // warning: comparison is always true due to limited range of data type [-Wtype-limits]
120	#pragma GCC diagnostic ignored "-Wimplicit-fallthrough" // warning: this statement may fall through
121	#endif
122
123	#ifndef STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
124	#ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in another compilation unit
125	#define STBRP_STATIC
126	#define STBRP_ASSERT(x) do { IM_ASSERT(x); } while (0)
127	#define STBRP_SORT ImQsort
128	#define STB_RECT_PACK_IMPLEMENTATION
129	#endif
130	#ifdef IMGUI_STB_RECT_PACK_FILENAME
131	#include IMGUI_STB_RECT_PACK_FILENAME
132	#else
133	#include "imstb_rectpack.h"
134	#endif
135	#endif
136
137	#ifdef IMGUI_ENABLE_STB_TRUETYPE
138	#ifndef STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
139	#ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in another compilation unit
140	#define STBTT_malloc(x,u) ((void)(u), IM_ALLOC(x))
141	#define STBTT_free(x,u) ((void)(u), IM_FREE(x))
142	#define STBTT_assert(x) do { IM_ASSERT(x); } while(0)
143	#define STBTT_fmod(x,y) ImFmod(x,y)
144	#define STBTT_sqrt(x) ImSqrt(x)
145	#define STBTT_pow(x,y) ImPow(x,y)
146	#define STBTT_fabs(x) ImFabs(x)
147	#define STBTT_ifloor(x) ((int)ImFloor(x))
148	#define STBTT_iceil(x) ((int)ImCeil(x))
149	#define STBTT_strlen(x) ImStrlen(x)
150	#define STBTT_STATIC
151	#define STB_TRUETYPE_IMPLEMENTATION
152	#else
153	#define STBTT_DEF extern
154	#endif
155	#ifdef IMGUI_STB_TRUETYPE_FILENAME
156	#include IMGUI_STB_TRUETYPE_FILENAME
157	#else
158	#include "imstb_truetype.h"
159	#endif
160	#endif
161	#endif // IMGUI_ENABLE_STB_TRUETYPE
162
163	#if defined(__GNUC__)
164	#pragma GCC diagnostic pop
165	#endif
166
167	#if defined(__clang__)
168	#pragma clang diagnostic pop
169	#endif
170
171	#if defined(_MSC_VER)
172	#pragma warning (pop)
173	#endif
174
175	#ifdef IMGUI_STB_NAMESPACE
176	} // namespace ImStb
177	using namespace IMGUI_STB_NAMESPACE;
178	#endif
179
180	//-----------------------------------------------------------------------------
181	// [SECTION] Style functions
182	//-----------------------------------------------------------------------------
183
184	void ImGui::StyleColorsDark(ImGuiStyle* dst)
185	{
186	ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
187	ImVec4* colors = style->Colors;
188
189	colors[ImGuiCol_Text] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
190	colors[ImGuiCol_TextDisabled] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
191	colors[ImGuiCol_WindowBg] = ImVec4(0.06f, 0.06f, 0.06f, 0.94f);
192	colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
193	colors[ImGuiCol_PopupBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
194	colors[ImGuiCol_Border] = ImVec4(0.43f, 0.43f, 0.50f, 0.50f);
195	colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
196	colors[ImGuiCol_FrameBg] = ImVec4(0.16f, 0.29f, 0.48f, 0.54f);
197	colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
198	colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
199	colors[ImGuiCol_TitleBg] = ImVec4(0.04f, 0.04f, 0.04f, 1.00f);
200	colors[ImGuiCol_TitleBgActive] = ImVec4(0.16f, 0.29f, 0.48f, 1.00f);
201	colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.00f, 0.00f, 0.51f);
202	colors[ImGuiCol_MenuBarBg] = ImVec4(0.14f, 0.14f, 0.14f, 1.00f);
203	colors[ImGuiCol_ScrollbarBg] = ImVec4(0.02f, 0.02f, 0.02f, 0.53f);
204	colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.31f, 0.31f, 0.31f, 1.00f);
205	colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.41f, 0.41f, 0.41f, 1.00f);
206	colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.51f, 0.51f, 0.51f, 1.00f);
207	colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
208	colors[ImGuiCol_SliderGrab] = ImVec4(0.24f, 0.52f, 0.88f, 1.00f);
209	colors[ImGuiCol_SliderGrabActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
210	colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
211	colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
212	colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
213	colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
214	colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
215	colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
216	colors[ImGuiCol_Separator] = colors[ImGuiCol_Border];
217	colors[ImGuiCol_SeparatorHovered] = ImVec4(0.10f, 0.40f, 0.75f, 0.78f);
218	colors[ImGuiCol_SeparatorActive] = ImVec4(0.10f, 0.40f, 0.75f, 1.00f);
219	colors[ImGuiCol_ResizeGrip] = ImVec4(0.26f, 0.59f, 0.98f, 0.20f);
220	colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
221	colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
222	colors[ImGuiCol_InputTextCursor] = colors[ImGuiCol_Text];
223	colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
224	colors[ImGuiCol_Tab] = ImLerp(a: colors[ImGuiCol_Header], b: colors[ImGuiCol_TitleBgActive], t: 0.80f);
225	colors[ImGuiCol_TabSelected] = ImLerp(a: colors[ImGuiCol_HeaderActive], b: colors[ImGuiCol_TitleBgActive], t: 0.60f);
226	colors[ImGuiCol_TabSelectedOverline] = colors[ImGuiCol_HeaderActive];
227	colors[ImGuiCol_TabDimmed] = ImLerp(a: colors[ImGuiCol_Tab], b: colors[ImGuiCol_TitleBg], t: 0.80f);
228	colors[ImGuiCol_TabDimmedSelected] = ImLerp(a: colors[ImGuiCol_TabSelected], b: colors[ImGuiCol_TitleBg], t: 0.40f);
229	colors[ImGuiCol_TabDimmedSelectedOverline] = ImVec4(0.50f, 0.50f, 0.50f, 0.00f);
230	colors[ImGuiCol_DockingPreview] = colors[ImGuiCol_HeaderActive] * ImVec4(1.0f, 1.0f, 1.0f, 0.7f);
231	colors[ImGuiCol_DockingEmptyBg] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f);
232	colors[ImGuiCol_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
233	colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
234	colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
235	colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
236	colors[ImGuiCol_TableHeaderBg] = ImVec4(0.19f, 0.19f, 0.20f, 1.00f);
237	colors[ImGuiCol_TableBorderStrong] = ImVec4(0.31f, 0.31f, 0.35f, 1.00f); // Prefer using Alpha=1.0 here
238	colors[ImGuiCol_TableBorderLight] = ImVec4(0.23f, 0.23f, 0.25f, 1.00f); // Prefer using Alpha=1.0 here
239	colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
240	colors[ImGuiCol_TableRowBgAlt] = ImVec4(1.00f, 1.00f, 1.00f, 0.06f);
241	colors[ImGuiCol_TextLink] = colors[ImGuiCol_HeaderActive];
242	colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
243	colors[ImGuiCol_TreeLines] = colors[ImGuiCol_Border];
244	colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
245	colors[ImGuiCol_NavCursor] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
246	colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
247	colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
248	colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.35f);
249	}
250
251	void ImGui::StyleColorsClassic(ImGuiStyle* dst)
252	{
253	ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
254	ImVec4* colors = style->Colors;
255
256	colors[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
257	colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
258	colors[ImGuiCol_WindowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.85f);
259	colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
260	colors[ImGuiCol_PopupBg] = ImVec4(0.11f, 0.11f, 0.14f, 0.92f);
261	colors[ImGuiCol_Border] = ImVec4(0.50f, 0.50f, 0.50f, 0.50f);
262	colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
263	colors[ImGuiCol_FrameBg] = ImVec4(0.43f, 0.43f, 0.43f, 0.39f);
264	colors[ImGuiCol_FrameBgHovered] = ImVec4(0.47f, 0.47f, 0.69f, 0.40f);
265	colors[ImGuiCol_FrameBgActive] = ImVec4(0.42f, 0.41f, 0.64f, 0.69f);
266	colors[ImGuiCol_TitleBg] = ImVec4(0.27f, 0.27f, 0.54f, 0.83f);
267	colors[ImGuiCol_TitleBgActive] = ImVec4(0.32f, 0.32f, 0.63f, 0.87f);
268	colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.40f, 0.40f, 0.80f, 0.20f);
269	colors[ImGuiCol_MenuBarBg] = ImVec4(0.40f, 0.40f, 0.55f, 0.80f);
270	colors[ImGuiCol_ScrollbarBg] = ImVec4(0.20f, 0.25f, 0.30f, 0.60f);
271	colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.40f, 0.40f, 0.80f, 0.30f);
272	colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.40f, 0.40f, 0.80f, 0.40f);
273	colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
274	colors[ImGuiCol_CheckMark] = ImVec4(0.90f, 0.90f, 0.90f, 0.50f);
275	colors[ImGuiCol_SliderGrab] = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
276	colors[ImGuiCol_SliderGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
277	colors[ImGuiCol_Button] = ImVec4(0.35f, 0.40f, 0.61f, 0.62f);
278	colors[ImGuiCol_ButtonHovered] = ImVec4(0.40f, 0.48f, 0.71f, 0.79f);
279	colors[ImGuiCol_ButtonActive] = ImVec4(0.46f, 0.54f, 0.80f, 1.00f);
280	colors[ImGuiCol_Header] = ImVec4(0.40f, 0.40f, 0.90f, 0.45f);
281	colors[ImGuiCol_HeaderHovered] = ImVec4(0.45f, 0.45f, 0.90f, 0.80f);
282	colors[ImGuiCol_HeaderActive] = ImVec4(0.53f, 0.53f, 0.87f, 0.80f);
283	colors[ImGuiCol_Separator] = ImVec4(0.50f, 0.50f, 0.50f, 0.60f);
284	colors[ImGuiCol_SeparatorHovered] = ImVec4(0.60f, 0.60f, 0.70f, 1.00f);
285	colors[ImGuiCol_SeparatorActive] = ImVec4(0.70f, 0.70f, 0.90f, 1.00f);
286	colors[ImGuiCol_ResizeGrip] = ImVec4(1.00f, 1.00f, 1.00f, 0.10f);
287	colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.78f, 0.82f, 1.00f, 0.60f);
288	colors[ImGuiCol_ResizeGripActive] = ImVec4(0.78f, 0.82f, 1.00f, 0.90f);
289	colors[ImGuiCol_InputTextCursor] = colors[ImGuiCol_Text];
290	colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
291	colors[ImGuiCol_Tab] = ImLerp(a: colors[ImGuiCol_Header], b: colors[ImGuiCol_TitleBgActive], t: 0.80f);
292	colors[ImGuiCol_TabSelected] = ImLerp(a: colors[ImGuiCol_HeaderActive], b: colors[ImGuiCol_TitleBgActive], t: 0.60f);
293	colors[ImGuiCol_TabSelectedOverline] = colors[ImGuiCol_HeaderActive];
294	colors[ImGuiCol_TabDimmed] = ImLerp(a: colors[ImGuiCol_Tab], b: colors[ImGuiCol_TitleBg], t: 0.80f);
295	colors[ImGuiCol_TabDimmedSelected] = ImLerp(a: colors[ImGuiCol_TabSelected], b: colors[ImGuiCol_TitleBg], t: 0.40f);
296	colors[ImGuiCol_TabDimmedSelectedOverline] = ImVec4(0.53f, 0.53f, 0.87f, 0.00f);
297	colors[ImGuiCol_DockingPreview] = colors[ImGuiCol_Header] * ImVec4(1.0f, 1.0f, 1.0f, 0.7f);
298	colors[ImGuiCol_DockingEmptyBg] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f);
299	colors[ImGuiCol_PlotLines] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
300	colors[ImGuiCol_PlotLinesHovered] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
301	colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
302	colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
303	colors[ImGuiCol_TableHeaderBg] = ImVec4(0.27f, 0.27f, 0.38f, 1.00f);
304	colors[ImGuiCol_TableBorderStrong] = ImVec4(0.31f, 0.31f, 0.45f, 1.00f); // Prefer using Alpha=1.0 here
305	colors[ImGuiCol_TableBorderLight] = ImVec4(0.26f, 0.26f, 0.28f, 1.00f); // Prefer using Alpha=1.0 here
306	colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
307	colors[ImGuiCol_TableRowBgAlt] = ImVec4(1.00f, 1.00f, 1.00f, 0.07f);
308	colors[ImGuiCol_TextLink] = colors[ImGuiCol_HeaderActive];
309	colors[ImGuiCol_TextSelectedBg] = ImVec4(0.00f, 0.00f, 1.00f, 0.35f);
310	colors[ImGuiCol_TreeLines] = colors[ImGuiCol_Border];
311	colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
312	colors[ImGuiCol_NavCursor] = colors[ImGuiCol_HeaderHovered];
313	colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
314	colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
315	colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
316	}
317
318	// Those light colors are better suited with a thicker font than the default one + FrameBorder
319	void ImGui::StyleColorsLight(ImGuiStyle* dst)
320	{
321	ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
322	ImVec4* colors = style->Colors;
323
324	colors[ImGuiCol_Text] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
325	colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
326	colors[ImGuiCol_WindowBg] = ImVec4(0.94f, 0.94f, 0.94f, 1.00f);
327	colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
328	colors[ImGuiCol_PopupBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.98f);
329	colors[ImGuiCol_Border] = ImVec4(0.00f, 0.00f, 0.00f, 0.30f);
330	colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
331	colors[ImGuiCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
332	colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
333	colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
334	colors[ImGuiCol_TitleBg] = ImVec4(0.96f, 0.96f, 0.96f, 1.00f);
335	colors[ImGuiCol_TitleBgActive] = ImVec4(0.82f, 0.82f, 0.82f, 1.00f);
336	colors[ImGuiCol_TitleBgCollapsed] = ImVec4(1.00f, 1.00f, 1.00f, 0.51f);
337	colors[ImGuiCol_MenuBarBg] = ImVec4(0.86f, 0.86f, 0.86f, 1.00f);
338	colors[ImGuiCol_ScrollbarBg] = ImVec4(0.98f, 0.98f, 0.98f, 0.53f);
339	colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.69f, 0.69f, 0.69f, 0.80f);
340	colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.49f, 0.49f, 0.49f, 0.80f);
341	colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.49f, 0.49f, 0.49f, 1.00f);
342	colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
343	colors[ImGuiCol_SliderGrab] = ImVec4(0.26f, 0.59f, 0.98f, 0.78f);
344	colors[ImGuiCol_SliderGrabActive] = ImVec4(0.46f, 0.54f, 0.80f, 0.60f);
345	colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
346	colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
347	colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
348	colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
349	colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
350	colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
351	colors[ImGuiCol_Separator] = ImVec4(0.39f, 0.39f, 0.39f, 0.62f);
352	colors[ImGuiCol_SeparatorHovered] = ImVec4(0.14f, 0.44f, 0.80f, 0.78f);
353	colors[ImGuiCol_SeparatorActive] = ImVec4(0.14f, 0.44f, 0.80f, 1.00f);
354	colors[ImGuiCol_ResizeGrip] = ImVec4(0.35f, 0.35f, 0.35f, 0.17f);
355	colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
356	colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
357	colors[ImGuiCol_InputTextCursor] = colors[ImGuiCol_Text];
358	colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
359	colors[ImGuiCol_Tab] = ImLerp(a: colors[ImGuiCol_Header], b: colors[ImGuiCol_TitleBgActive], t: 0.90f);
360	colors[ImGuiCol_TabSelected] = ImLerp(a: colors[ImGuiCol_HeaderActive], b: colors[ImGuiCol_TitleBgActive], t: 0.60f);
361	colors[ImGuiCol_TabSelectedOverline] = colors[ImGuiCol_HeaderActive];
362	colors[ImGuiCol_TabDimmed] = ImLerp(a: colors[ImGuiCol_Tab], b: colors[ImGuiCol_TitleBg], t: 0.80f);
363	colors[ImGuiCol_TabDimmedSelected] = ImLerp(a: colors[ImGuiCol_TabSelected], b: colors[ImGuiCol_TitleBg], t: 0.40f);
364	colors[ImGuiCol_TabDimmedSelectedOverline] = ImVec4(0.26f, 0.59f, 1.00f, 0.00f);
365	colors[ImGuiCol_DockingPreview] = colors[ImGuiCol_Header] * ImVec4(1.0f, 1.0f, 1.0f, 0.7f);
366	colors[ImGuiCol_DockingEmptyBg] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f);
367	colors[ImGuiCol_PlotLines] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
368	colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
369	colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
370	colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.45f, 0.00f, 1.00f);
371	colors[ImGuiCol_TableHeaderBg] = ImVec4(0.78f, 0.87f, 0.98f, 1.00f);
372	colors[ImGuiCol_TableBorderStrong] = ImVec4(0.57f, 0.57f, 0.64f, 1.00f); // Prefer using Alpha=1.0 here
373	colors[ImGuiCol_TableBorderLight] = ImVec4(0.68f, 0.68f, 0.74f, 1.00f); // Prefer using Alpha=1.0 here
374	colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
375	colors[ImGuiCol_TableRowBgAlt] = ImVec4(0.30f, 0.30f, 0.30f, 0.09f);
376	colors[ImGuiCol_TextLink] = colors[ImGuiCol_HeaderActive];
377	colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
378	colors[ImGuiCol_TreeLines] = colors[ImGuiCol_Border];
379	colors[ImGuiCol_DragDropTarget] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
380	colors[ImGuiCol_NavCursor] = colors[ImGuiCol_HeaderHovered];
381	colors[ImGuiCol_NavWindowingHighlight] = ImVec4(0.70f, 0.70f, 0.70f, 0.70f);
382	colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.20f);
383	colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
384	}
385
386	//-----------------------------------------------------------------------------
387	// [SECTION] ImDrawList
388	//-----------------------------------------------------------------------------
389
390	ImDrawListSharedData::ImDrawListSharedData()
391	{
392	memset(s: this, c: 0, n: sizeof(*this));
393	InitialFringeScale = 1.0f;
394	for (int i = 0; i < IM_ARRAYSIZE(ArcFastVtx); i++)
395	{
396	const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(ArcFastVtx);
397	ArcFastVtx[i] = ImVec2(ImCos(a), ImSin(a));
398	}
399	ArcFastRadiusCutoff = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(IM_DRAWLIST_ARCFAST_SAMPLE_MAX, CircleSegmentMaxError);
400	}
401
402	ImDrawListSharedData::~ImDrawListSharedData()
403	{
404	IM_ASSERT(DrawLists.Size == 0);
405	}
406
407	void ImDrawListSharedData::SetCircleTessellationMaxError(float max_error)
408	{
409	if (CircleSegmentMaxError == max_error)
410	return;
411
412	IM_ASSERT(max_error > 0.0f);
413	CircleSegmentMaxError = max_error;
414	for (int i = 0; i < IM_ARRAYSIZE(CircleSegmentCounts); i++)
415	{
416	const float radius = (float)i;
417	CircleSegmentCounts[i] = (ImU8)((i > 0) ? IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, CircleSegmentMaxError) : IM_DRAWLIST_ARCFAST_SAMPLE_MAX);
418	}
419	ArcFastRadiusCutoff = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(IM_DRAWLIST_ARCFAST_SAMPLE_MAX, CircleSegmentMaxError);
420	}
421
422	ImDrawList::ImDrawList(ImDrawListSharedData* shared_data)
423	{
424	memset(s: this, c: 0, n: sizeof(*this));
425	_SetDrawListSharedData(data: shared_data);
426	}
427
428	ImDrawList::~ImDrawList()
429	{
430	_ClearFreeMemory();
431	_SetDrawListSharedData(NULL);
432	}
433
434	void ImDrawList::_SetDrawListSharedData(ImDrawListSharedData* data)
435	{
436	if (_Data != NULL)
437	_Data->DrawLists.find_erase_unsorted(v: this);
438	_Data = data;
439	if (_Data != NULL)
440	_Data->DrawLists.push_back(v: this);
441	}
442
443	// Initialize before use in a new frame. We always have a command ready in the buffer.
444	// In the majority of cases, you would want to call PushClipRect() and PushTexture() after this.
445	void ImDrawList::_ResetForNewFrame()
446	{
447	// Verify that the ImDrawCmd fields we want to memcmp() are contiguous in memory.
448	IM_STATIC_ASSERT(offsetof(ImDrawCmd, ClipRect) == 0);
449	IM_STATIC_ASSERT(offsetof(ImDrawCmd, TexRef) == sizeof(ImVec4));
450	IM_STATIC_ASSERT(offsetof(ImDrawCmd, VtxOffset) == sizeof(ImVec4) + sizeof(ImTextureRef));
451	if (_Splitter._Count > 1)
452	_Splitter.Merge(draw_list: this);
453
454	CmdBuffer.resize(new_size: 0);
455	IdxBuffer.resize(new_size: 0);
456	VtxBuffer.resize(new_size: 0);
457	Flags = _Data->InitialFlags;
458	memset(s: &_CmdHeader, c: 0, n: sizeof(_CmdHeader));
459	_VtxCurrentIdx = 0;
460	_VtxWritePtr = NULL;
461	_IdxWritePtr = NULL;
462	_ClipRectStack.resize(new_size: 0);
463	_TextureStack.resize(new_size: 0);
464	_CallbacksDataBuf.resize(new_size: 0);
465	_Path.resize(new_size: 0);
466	_Splitter.Clear();
467	CmdBuffer.push_back(v: ImDrawCmd());
468	_FringeScale = _Data->InitialFringeScale;
469	}
470
471	void ImDrawList::_ClearFreeMemory()
472	{
473	CmdBuffer.clear();
474	IdxBuffer.clear();
475	VtxBuffer.clear();
476	Flags = ImDrawListFlags_None;
477	_VtxCurrentIdx = 0;
478	_VtxWritePtr = NULL;
479	_IdxWritePtr = NULL;
480	_ClipRectStack.clear();
481	_TextureStack.clear();
482	_CallbacksDataBuf.clear();
483	_Path.clear();
484	_Splitter.ClearFreeMemory();
485	}
486
487	ImDrawList* ImDrawList::CloneOutput() const
488	{
489	ImDrawList* dst = IM_NEW(ImDrawList(_Data));
490	dst->CmdBuffer = CmdBuffer;
491	dst->IdxBuffer = IdxBuffer;
492	dst->VtxBuffer = VtxBuffer;
493	dst->Flags = Flags;
494	return dst;
495	}
496
497	void ImDrawList::AddDrawCmd()
498	{
499	ImDrawCmd draw_cmd;
500	draw_cmd.ClipRect = _CmdHeader.ClipRect; // Same as calling ImDrawCmd_HeaderCopy()
501	draw_cmd.TexRef = _CmdHeader.TexRef;
502	draw_cmd.VtxOffset = _CmdHeader.VtxOffset;
503	draw_cmd.IdxOffset = IdxBuffer.Size;
504
505	IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w);
506	CmdBuffer.push_back(v: draw_cmd);
507	}
508
509	// Pop trailing draw command (used before merging or presenting to user)
510	// Note that this leaves the ImDrawList in a state unfit for further commands, as most code assume that CmdBuffer.Size > 0 && CmdBuffer.back().UserCallback == NULL
511	void ImDrawList::_PopUnusedDrawCmd()
512	{
513	while (CmdBuffer.Size > 0)
514	{
515	ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
516	if (curr_cmd->ElemCount != 0 || curr_cmd->UserCallback != NULL)
517	return;// break;
518	CmdBuffer.pop_back();
519	}
520	}
521
522	void ImDrawList::AddCallback(ImDrawCallback callback, void* userdata, size_t userdata_size)
523	{
524	IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
525	ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
526	IM_ASSERT(curr_cmd->UserCallback == NULL);
527	if (curr_cmd->ElemCount != 0)
528	{
529	AddDrawCmd();
530	curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
531	}
532
533	curr_cmd->UserCallback = callback;
534	if (userdata_size == 0)
535	{
536	// Store user data directly in command (no indirection)
537	curr_cmd->UserCallbackData = userdata;
538	curr_cmd->UserCallbackDataSize = 0;
539	curr_cmd->UserCallbackDataOffset = -1;
540	}
541	else
542	{
543	// Copy and store user data in a buffer
544	IM_ASSERT(userdata != NULL);
545	IM_ASSERT(userdata_size < (1u << 31));
546	curr_cmd->UserCallbackData = NULL; // Will be resolved during Render()
547	curr_cmd->UserCallbackDataSize = (int)userdata_size;
548	curr_cmd->UserCallbackDataOffset = _CallbacksDataBuf.Size;
549	_CallbacksDataBuf.resize(new_size: _CallbacksDataBuf.Size + (int)userdata_size);
550	memcpy(dest: _CallbacksDataBuf.Data + (size_t)curr_cmd->UserCallbackDataOffset, src: userdata, n: userdata_size);
551	}
552
553	AddDrawCmd(); // Force a new command after us (see comment below)
554	}
555
556	// Compare ClipRect, TexRef and VtxOffset with a single memcmp()
557	#define ImDrawCmd_HeaderSize (offsetof(ImDrawCmd, VtxOffset) + sizeof(unsigned int))
558	#define ImDrawCmd_HeaderCompare(CMD_LHS, CMD_RHS) (memcmp(CMD_LHS, CMD_RHS, ImDrawCmd_HeaderSize)) // Compare ClipRect, TexRef, VtxOffset
559	#define ImDrawCmd_HeaderCopy(CMD_DST, CMD_SRC) (memcpy(CMD_DST, CMD_SRC, ImDrawCmd_HeaderSize)) // Copy ClipRect, TexRef, VtxOffset
560	#define ImDrawCmd_AreSequentialIdxOffset(CMD_0, CMD_1) (CMD_0->IdxOffset + CMD_0->ElemCount == CMD_1->IdxOffset)
561
562	// Try to merge two last draw commands
563	void ImDrawList::_TryMergeDrawCmds()
564	{
565	IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
566	ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
567	ImDrawCmd* prev_cmd = curr_cmd - 1;
568	if (ImDrawCmd_HeaderCompare(curr_cmd, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && curr_cmd->UserCallback == NULL && prev_cmd->UserCallback == NULL)
569	{
570	prev_cmd->ElemCount += curr_cmd->ElemCount;
571	CmdBuffer.pop_back();
572	}
573	}
574
575	// Our scheme may appears a bit unusual, basically we want the most-common calls AddLine AddRect etc. to not have to perform any check so we always have a command ready in the stack.
576	// The cost of figuring out if a new command has to be added or if we can merge is paid in those Update** functions only.
577	void ImDrawList::_OnChangedClipRect()
578	{
579	// If current command is used with different settings we need to add a new command
580	IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
581	ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
582	if (curr_cmd->ElemCount != 0 && memcmp(s1: &curr_cmd->ClipRect, s2: &_CmdHeader.ClipRect, n: sizeof(ImVec4)) != 0)
583	{
584	AddDrawCmd();
585	return;
586	}
587	IM_ASSERT(curr_cmd->UserCallback == NULL);
588
589	// Try to merge with previous command if it matches, else use current command
590	ImDrawCmd* prev_cmd = curr_cmd - 1;
591	if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && prev_cmd->UserCallback == NULL)
592	{
593	CmdBuffer.pop_back();
594	return;
595	}
596	curr_cmd->ClipRect = _CmdHeader.ClipRect;
597	}
598
599	void ImDrawList::_OnChangedTexture()
600	{
601	// If current command is used with different settings we need to add a new command
602	IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
603	ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
604	if (curr_cmd->ElemCount != 0 && curr_cmd->TexRef != _CmdHeader.TexRef)
605	{
606	AddDrawCmd();
607	return;
608	}
609
610	// Unlike other _OnChangedXXX functions this may be called by ImFontAtlasUpdateDrawListsTextures() in more locations so we need to handle this case.
611	if (curr_cmd->UserCallback != NULL)
612	return;
613
614	// Try to merge with previous command if it matches, else use current command
615	ImDrawCmd* prev_cmd = curr_cmd - 1;
616	if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && prev_cmd->UserCallback == NULL)
617	{
618	CmdBuffer.pop_back();
619	return;
620	}
621	curr_cmd->TexRef = _CmdHeader.TexRef;
622	}
623
624	void ImDrawList::_OnChangedVtxOffset()
625	{
626	// We don't need to compare curr_cmd->VtxOffset != _CmdHeader.VtxOffset because we know it'll be different at the time we call this.
627	_VtxCurrentIdx = 0;
628	IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
629	ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
630	//IM_ASSERT(curr_cmd->VtxOffset != _CmdHeader.VtxOffset); // See #3349
631	if (curr_cmd->ElemCount != 0)
632	{
633	AddDrawCmd();
634	return;
635	}
636	IM_ASSERT(curr_cmd->UserCallback == NULL);
637	curr_cmd->VtxOffset = _CmdHeader.VtxOffset;
638	}
639
640	int ImDrawList::_CalcCircleAutoSegmentCount(float radius) const
641	{
642	// Automatic segment count
643	const int radius_idx = (int)(radius + 0.999999f); // ceil to never reduce accuracy
644	if (radius_idx >= 0 && radius_idx < IM_ARRAYSIZE(_Data->CircleSegmentCounts))
645	return _Data->CircleSegmentCounts[radius_idx]; // Use cached value
646	else
647	return IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, _Data->CircleSegmentMaxError);
648	}
649
650	// Render-level scissoring. This is passed down to your render function but not used for CPU-side coarse clipping. Prefer using higher-level ImGui::PushClipRect() to affect logic (hit-testing and widget culling)
651	void ImDrawList::PushClipRect(const ImVec2& cr_min, const ImVec2& cr_max, bool intersect_with_current_clip_rect)
652	{
653	ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y);
654	if (intersect_with_current_clip_rect)
655	{
656	ImVec4 current = _CmdHeader.ClipRect;
657	if (cr.x < current.x) cr.x = current.x;
658	if (cr.y < current.y) cr.y = current.y;
659	if (cr.z > current.z) cr.z = current.z;
660	if (cr.w > current.w) cr.w = current.w;
661	}
662	cr.z = ImMax(lhs: cr.x, rhs: cr.z);
663	cr.w = ImMax(lhs: cr.y, rhs: cr.w);
664
665	_ClipRectStack.push_back(v: cr);
666	_CmdHeader.ClipRect = cr;
667	_OnChangedClipRect();
668	}
669
670	void ImDrawList::PushClipRectFullScreen()
671	{
672	PushClipRect(cr_min: ImVec2(_Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y), cr_max: ImVec2(_Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w));
673	}
674
675	void ImDrawList::PopClipRect()
676	{
677	_ClipRectStack.pop_back();
678	_CmdHeader.ClipRect = (_ClipRectStack.Size == 0) ? _Data->ClipRectFullscreen : _ClipRectStack.Data[_ClipRectStack.Size - 1];
679	_OnChangedClipRect();
680	}
681
682	void ImDrawList::PushTexture(ImTextureRef tex_ref)
683	{
684	_TextureStack.push_back(v: tex_ref);
685	_CmdHeader.TexRef = tex_ref;
686	if (tex_ref._TexData != NULL)
687	IM_ASSERT(tex_ref._TexData->WantDestroyNextFrame == false);
688	_OnChangedTexture();
689	}
690
691	void ImDrawList::PopTexture()
692	{
693	_TextureStack.pop_back();
694	_CmdHeader.TexRef = (_TextureStack.Size == 0) ? ImTextureRef() : _TextureStack.Data[_TextureStack.Size - 1];
695	_OnChangedTexture();
696	}
697
698	// This is used by ImGui::PushFont()/PopFont(). It works because we never use _TextureIdStack[] elsewhere than in PushTexture()/PopTexture().
699	void ImDrawList::_SetTexture(ImTextureRef tex_ref)
700	{
701	if (_CmdHeader.TexRef == tex_ref)
702	return;
703	_CmdHeader.TexRef = tex_ref;
704	_TextureStack.back() = tex_ref;
705	_OnChangedTexture();
706	}
707
708	// Reserve space for a number of vertices and indices.
709	// You must finish filling your reserved data before calling PrimReserve() again, as it may reallocate or
710	// submit the intermediate results. PrimUnreserve() can be used to release unused allocations.
711	void ImDrawList::PrimReserve(int idx_count, int vtx_count)
712	{
713	// Large mesh support (when enabled)
714	IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
715	if (sizeof(ImDrawIdx) == 2 && (_VtxCurrentIdx + vtx_count >= (1 << 16)) && (Flags & ImDrawListFlags_AllowVtxOffset))
716	{
717	// FIXME: In theory we should be testing that vtx_count <64k here.
718	// In practice, RenderText() relies on reserving ahead for a worst case scenario so it is currently useful for us
719	// to not make that check until we rework the text functions to handle clipping and large horizontal lines better.
720	_CmdHeader.VtxOffset = VtxBuffer.Size;
721	_OnChangedVtxOffset();
722	}
723
724	ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
725	draw_cmd->ElemCount += idx_count;
726
727	int vtx_buffer_old_size = VtxBuffer.Size;
728	VtxBuffer.resize(new_size: vtx_buffer_old_size + vtx_count);
729	_VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size;
730
731	int idx_buffer_old_size = IdxBuffer.Size;
732	IdxBuffer.resize(new_size: idx_buffer_old_size + idx_count);
733	_IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size;
734	}
735
736	// Release the number of reserved vertices/indices from the end of the last reservation made with PrimReserve().
737	void ImDrawList::PrimUnreserve(int idx_count, int vtx_count)
738	{
739	IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
740
741	ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
742	draw_cmd->ElemCount -= idx_count;
743	VtxBuffer.shrink(new_size: VtxBuffer.Size - vtx_count);
744	IdxBuffer.shrink(new_size: IdxBuffer.Size - idx_count);
745	}
746
747	// Fully unrolled with inline call to keep our debug builds decently fast.
748	void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col)
749	{
750	ImVec2 b(c.x, a.y), d(a.x, c.y), uv(_Data->TexUvWhitePixel);
751	ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
752	_IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
753	_IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
754	_VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
755	_VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
756	_VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
757	_VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
758	_VtxWritePtr += 4;
759	_VtxCurrentIdx += 4;
760	_IdxWritePtr += 6;
761	}
762
763	void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col)
764	{
765	ImVec2 b(c.x, a.y), d(a.x, c.y), uv_b(uv_c.x, uv_a.y), uv_d(uv_a.x, uv_c.y);
766	ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
767	_IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
768	_IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
769	_VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
770	_VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
771	_VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
772	_VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
773	_VtxWritePtr += 4;
774	_VtxCurrentIdx += 4;
775	_IdxWritePtr += 6;
776	}
777
778	void ImDrawList::PrimQuadUV(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a, const ImVec2& uv_b, const ImVec2& uv_c, const ImVec2& uv_d, ImU32 col)
779	{
780	ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
781	_IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
782	_IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
783	_VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
784	_VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
785	_VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
786	_VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
787	_VtxWritePtr += 4;
788	_VtxCurrentIdx += 4;
789	_IdxWritePtr += 6;
790	}
791
792	// On AddPolyline() and AddConvexPolyFilled() we intentionally avoid using ImVec2 and superfluous function calls to optimize debug/non-inlined builds.
793	// - Those macros expects l-values and need to be used as their own statement.
794	// - Those macros are intentionally not surrounded by the 'do {} while (0)' idiom because even that translates to runtime with debug compilers.
795	#define IM_NORMALIZE2F_OVER_ZERO(VX,VY) { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = ImRsqrt(d2); VX *= inv_len; VY *= inv_len; } } (void)0
796	#define IM_FIXNORMAL2F_MAX_INVLEN2 100.0f // 500.0f (see #4053, #3366)
797	#define IM_FIXNORMAL2F(VX,VY) { float d2 = VX*VX + VY*VY; if (d2 > 0.000001f) { float inv_len2 = 1.0f / d2; if (inv_len2 > IM_FIXNORMAL2F_MAX_INVLEN2) inv_len2 = IM_FIXNORMAL2F_MAX_INVLEN2; VX *= inv_len2; VY *= inv_len2; } } (void)0
798
799	// TODO: Thickness anti-aliased lines cap are missing their AA fringe.
800	// We avoid using the ImVec2 math operators here to reduce cost to a minimum for debug/non-inlined builds.
801	void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, ImDrawFlags flags, float thickness)
802	{
803	if (points_count < 2 || (col & IM_COL32_A_MASK) == 0)
804	return;
805
806	const bool closed = (flags & ImDrawFlags_Closed) != 0;
807	const ImVec2 opaque_uv = _Data->TexUvWhitePixel;
808	const int count = closed ? points_count : points_count - 1; // The number of line segments we need to draw
809	const bool thick_line = (thickness > _FringeScale);
810
811	if (Flags & ImDrawListFlags_AntiAliasedLines)
812	{
813	// Anti-aliased stroke
814	const float AA_SIZE = _FringeScale;
815	const ImU32 col_trans = col & ~IM_COL32_A_MASK;
816
817	// Thicknesses <1.0 should behave like thickness 1.0
818	thickness = ImMax(lhs: thickness, rhs: 1.0f);
819	const int integer_thickness = (int)thickness;
820	const float fractional_thickness = thickness - integer_thickness;
821
822	// Do we want to draw this line using a texture?
823	// - For now, only draw integer-width lines using textures to avoid issues with the way scaling occurs, could be improved.
824	// - If AA_SIZE is not 1.0f we cannot use the texture path.
825	const bool use_texture = (Flags & ImDrawListFlags_AntiAliasedLinesUseTex) && (integer_thickness < IM_DRAWLIST_TEX_LINES_WIDTH_MAX) && (fractional_thickness <= 0.00001f) && (AA_SIZE == 1.0f);
826
827	// We should never hit this, because NewFrame() doesn't set ImDrawListFlags_AntiAliasedLinesUseTex unless ImFontAtlasFlags_NoBakedLines is off
828	IM_ASSERT_PARANOID(!use_texture || !(_Data->Font->ContainerAtlas->Flags & ImFontAtlasFlags_NoBakedLines));
829
830	const int idx_count = use_texture ? (count * 6) : (thick_line ? count * 18 : count * 12);
831	const int vtx_count = use_texture ? (points_count * 2) : (thick_line ? points_count * 4 : points_count * 3);
832	PrimReserve(idx_count, vtx_count);
833
834	// Temporary buffer
835	// The first <points_count> items are normals at each line point, then after that there are either 2 or 4 temp points for each line point
836	_Data->TempBuffer.reserve_discard(new_capacity: points_count * ((use_texture || !thick_line) ? 3 : 5));
837	ImVec2* temp_normals = _Data->TempBuffer.Data;
838	ImVec2* temp_points = temp_normals + points_count;
839
840	// Calculate normals (tangents) for each line segment
841	for (int i1 = 0; i1 < count; i1++)
842	{
843	const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
844	float dx = points[i2].x - points[i1].x;
845	float dy = points[i2].y - points[i1].y;
846	IM_NORMALIZE2F_OVER_ZERO(dx, dy);
847	temp_normals[i1].x = dy;
848	temp_normals[i1].y = -dx;
849	}
850	if (!closed)
851	temp_normals[points_count - 1] = temp_normals[points_count - 2];
852
853	// If we are drawing a one-pixel-wide line without a texture, or a textured line of any width, we only need 2 or 3 vertices per point
854	if (use_texture || !thick_line)
855	{
856	// [PATH 1] Texture-based lines (thick or non-thick)
857	// [PATH 2] Non texture-based lines (non-thick)
858
859	// The width of the geometry we need to draw - this is essentially <thickness> pixels for the line itself, plus "one pixel" for AA.
860	// - In the texture-based path, we don't use AA_SIZE here because the +1 is tied to the generated texture
861	// (see ImFontAtlasBuildRenderLinesTexData() function), and so alternate values won't work without changes to that code.
862	// - In the non texture-based paths, we would allow AA_SIZE to potentially be != 1.0f with a patch (e.g. fringe_scale patch to
863	// allow scaling geometry while preserving one-screen-pixel AA fringe).
864	const float half_draw_size = use_texture ? ((thickness * 0.5f) + 1) : AA_SIZE;
865
866	// If line is not closed, the first and last points need to be generated differently as there are no normals to blend
867	if (!closed)
868	{
869	temp_points[0] = points[0] + temp_normals[0] * half_draw_size;
870	temp_points[1] = points[0] - temp_normals[0] * half_draw_size;
871	temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * half_draw_size;
872	temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * half_draw_size;
873	}
874
875	// Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
876	// This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps)
877	// FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
878	unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
879	for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
880	{
881	const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1; // i2 is the second point of the line segment
882	const unsigned int idx2 = ((i1 + 1) == points_count) ? _VtxCurrentIdx : (idx1 + (use_texture ? 2 : 3)); // Vertex index for end of segment
883
884	// Average normals
885	float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
886	float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
887	IM_FIXNORMAL2F(dm_x, dm_y);
888	dm_x *= half_draw_size; // dm_x, dm_y are offset to the outer edge of the AA area
889	dm_y *= half_draw_size;
890
891	// Add temporary vertices for the outer edges
892	ImVec2* out_vtx = &temp_points[i2 * 2];
893	out_vtx[0].x = points[i2].x + dm_x;
894	out_vtx[0].y = points[i2].y + dm_y;
895	out_vtx[1].x = points[i2].x - dm_x;
896	out_vtx[1].y = points[i2].y - dm_y;
897
898	if (use_texture)
899	{
900	// Add indices for two triangles
901	_IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 1); // Right tri
902	_IdxWritePtr[3] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[4] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Left tri
903	_IdxWritePtr += 6;
904	}
905	else
906	{
907	// Add indexes for four triangles
908	_IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2); // Right tri 1
909	_IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Right tri 2
910	_IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0); // Left tri 1
911	_IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1); // Left tri 2
912	_IdxWritePtr += 12;
913	}
914
915	idx1 = idx2;
916	}
917
918	// Add vertices for each point on the line
919	if (use_texture)
920	{
921	// If we're using textures we only need to emit the left/right edge vertices
922	ImVec4 tex_uvs = _Data->TexUvLines[integer_thickness];
923	/*if (fractional_thickness != 0.0f) // Currently always zero when use_texture==false!
924	{
925	const ImVec4 tex_uvs_1 = _Data->TexUvLines[integer_thickness + 1];
926	tex_uvs.x = tex_uvs.x + (tex_uvs_1.x - tex_uvs.x) * fractional_thickness; // inlined ImLerp()
927	tex_uvs.y = tex_uvs.y + (tex_uvs_1.y - tex_uvs.y) * fractional_thickness;
928	tex_uvs.z = tex_uvs.z + (tex_uvs_1.z - tex_uvs.z) * fractional_thickness;
929	tex_uvs.w = tex_uvs.w + (tex_uvs_1.w - tex_uvs.w) * fractional_thickness;
930	}*/
931	ImVec2 tex_uv0(tex_uvs.x, tex_uvs.y);
932	ImVec2 tex_uv1(tex_uvs.z, tex_uvs.w);
933	for (int i = 0; i < points_count; i++)
934	{
935	_VtxWritePtr[0].pos = temp_points[i * 2 + 0]; _VtxWritePtr[0].uv = tex_uv0; _VtxWritePtr[0].col = col; // Left-side outer edge
936	_VtxWritePtr[1].pos = temp_points[i * 2 + 1]; _VtxWritePtr[1].uv = tex_uv1; _VtxWritePtr[1].col = col; // Right-side outer edge
937	_VtxWritePtr += 2;
938	}
939	}
940	else
941	{
942	// If we're not using a texture, we need the center vertex as well
943	for (int i = 0; i < points_count; i++)
944	{
945	_VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col; // Center of line
946	_VtxWritePtr[1].pos = temp_points[i * 2 + 0]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col_trans; // Left-side outer edge
947	_VtxWritePtr[2].pos = temp_points[i * 2 + 1]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col_trans; // Right-side outer edge
948	_VtxWritePtr += 3;
949	}
950	}
951	}
952	else
953	{
954	// [PATH 2] Non texture-based lines (thick): we need to draw the solid line core and thus require four vertices per point
955	const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f;
956
957	// If line is not closed, the first and last points need to be generated differently as there are no normals to blend
958	if (!closed)
959	{
960	const int points_last = points_count - 1;
961	temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE);
962	temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness);
963	temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness);
964	temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE);
965	temp_points[points_last * 4 + 0] = points[points_last] + temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
966	temp_points[points_last * 4 + 1] = points[points_last] + temp_normals[points_last] * (half_inner_thickness);
967	temp_points[points_last * 4 + 2] = points[points_last] - temp_normals[points_last] * (half_inner_thickness);
968	temp_points[points_last * 4 + 3] = points[points_last] - temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
969	}
970
971	// Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
972	// This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps)
973	// FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
974	unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
975	for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
976	{
977	const int i2 = (i1 + 1) == points_count ? 0 : (i1 + 1); // i2 is the second point of the line segment
978	const unsigned int idx2 = (i1 + 1) == points_count ? _VtxCurrentIdx : (idx1 + 4); // Vertex index for end of segment
979
980	// Average normals
981	float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
982	float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
983	IM_FIXNORMAL2F(dm_x, dm_y);
984	float dm_out_x = dm_x * (half_inner_thickness + AA_SIZE);
985	float dm_out_y = dm_y * (half_inner_thickness + AA_SIZE);
986	float dm_in_x = dm_x * half_inner_thickness;
987	float dm_in_y = dm_y * half_inner_thickness;
988
989	// Add temporary vertices
990	ImVec2* out_vtx = &temp_points[i2 * 4];
991	out_vtx[0].x = points[i2].x + dm_out_x;
992	out_vtx[0].y = points[i2].y + dm_out_y;
993	out_vtx[1].x = points[i2].x + dm_in_x;
994	out_vtx[1].y = points[i2].y + dm_in_y;
995	out_vtx[2].x = points[i2].x - dm_in_x;
996	out_vtx[2].y = points[i2].y - dm_in_y;
997	out_vtx[3].x = points[i2].x - dm_out_x;
998	out_vtx[3].y = points[i2].y - dm_out_y;
999
1000	// Add indexes
1001	_IdxWritePtr[0] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2);
1002	_IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 1);
1003	_IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0);
1004	_IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1);
1005	_IdxWritePtr[12] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[13] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[14] = (ImDrawIdx)(idx1 + 3);
1006	_IdxWritePtr[15] = (ImDrawIdx)(idx1 + 3); _IdxWritePtr[16] = (ImDrawIdx)(idx2 + 3); _IdxWritePtr[17] = (ImDrawIdx)(idx2 + 2);
1007	_IdxWritePtr += 18;
1008
1009	idx1 = idx2;
1010	}
1011
1012	// Add vertices
1013	for (int i = 0; i < points_count; i++)
1014	{
1015	_VtxWritePtr[0].pos = temp_points[i * 4 + 0]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col_trans;
1016	_VtxWritePtr[1].pos = temp_points[i * 4 + 1]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
1017	_VtxWritePtr[2].pos = temp_points[i * 4 + 2]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
1018	_VtxWritePtr[3].pos = temp_points[i * 4 + 3]; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col_trans;
1019	_VtxWritePtr += 4;
1020	}
1021	}
1022	_VtxCurrentIdx += (ImDrawIdx)vtx_count;
1023	}
1024	else
1025	{
1026	// [PATH 4] Non texture-based, Non anti-aliased lines
1027	const int idx_count = count * 6;
1028	const int vtx_count = count * 4; // FIXME-OPT: Not sharing edges
1029	PrimReserve(idx_count, vtx_count);
1030
1031	for (int i1 = 0; i1 < count; i1++)
1032	{
1033	const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
1034	const ImVec2& p1 = points[i1];
1035	const ImVec2& p2 = points[i2];
1036
1037	float dx = p2.x - p1.x;
1038	float dy = p2.y - p1.y;
1039	IM_NORMALIZE2F_OVER_ZERO(dx, dy);
1040	dx *= (thickness * 0.5f);
1041	dy *= (thickness * 0.5f);
1042
1043	_VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col;
1044	_VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
1045	_VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
1046	_VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col;
1047	_VtxWritePtr += 4;
1048
1049	_IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + 2);
1050	_IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx + 2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx + 3);
1051	_IdxWritePtr += 6;
1052	_VtxCurrentIdx += 4;
1053	}
1054	}
1055	}
1056
1057	// - We intentionally avoid using ImVec2 and its math operators here to reduce cost to a minimum for debug/non-inlined builds.
1058	// - Filled shapes must always use clockwise winding order. The anti-aliasing fringe depends on it. Counter-clockwise shapes will have "inward" anti-aliasing.
1059	void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col)
1060	{
1061	if (points_count < 3 || (col & IM_COL32_A_MASK) == 0)
1062	return;
1063
1064	const ImVec2 uv = _Data->TexUvWhitePixel;
1065
1066	if (Flags & ImDrawListFlags_AntiAliasedFill)
1067	{
1068	// Anti-aliased Fill
1069	const float AA_SIZE = _FringeScale;
1070	const ImU32 col_trans = col & ~IM_COL32_A_MASK;
1071	const int idx_count = (points_count - 2)*3 + points_count * 6;
1072	const int vtx_count = (points_count * 2);
1073	PrimReserve(idx_count, vtx_count);
1074
1075	// Add indexes for fill
1076	unsigned int vtx_inner_idx = _VtxCurrentIdx;
1077	unsigned int vtx_outer_idx = _VtxCurrentIdx + 1;
1078	for (int i = 2; i < points_count; i++)
1079	{
1080	_IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + ((i - 1) << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx + (i << 1));
1081	_IdxWritePtr += 3;
1082	}
1083
1084	// Compute normals
1085	_Data->TempBuffer.reserve_discard(new_capacity: points_count);
1086	ImVec2* temp_normals = _Data->TempBuffer.Data;
1087	for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
1088	{
1089	const ImVec2& p0 = points[i0];
1090	const ImVec2& p1 = points[i1];
1091	float dx = p1.x - p0.x;
1092	float dy = p1.y - p0.y;
1093	IM_NORMALIZE2F_OVER_ZERO(dx, dy);
1094	temp_normals[i0].x = dy;
1095	temp_normals[i0].y = -dx;
1096	}
1097
1098	for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
1099	{
1100	// Average normals
1101	const ImVec2& n0 = temp_normals[i0];
1102	const ImVec2& n1 = temp_normals[i1];
1103	float dm_x = (n0.x + n1.x) * 0.5f;
1104	float dm_y = (n0.y + n1.y) * 0.5f;
1105	IM_FIXNORMAL2F(dm_x, dm_y);
1106	dm_x *= AA_SIZE * 0.5f;
1107	dm_y *= AA_SIZE * 0.5f;
1108
1109	// Add vertices
1110	_VtxWritePtr[0].pos.x = (points[i1].x - dm_x); _VtxWritePtr[0].pos.y = (points[i1].y - dm_y); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; // Inner
1111	_VtxWritePtr[1].pos.x = (points[i1].x + dm_x); _VtxWritePtr[1].pos.y = (points[i1].y + dm_y); _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans; // Outer
1112	_VtxWritePtr += 2;
1113
1114	// Add indexes for fringes
1115	_IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (i0 << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1));
1116	_IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx + (i1 << 1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1));
1117	_IdxWritePtr += 6;
1118	}
1119	_VtxCurrentIdx += (ImDrawIdx)vtx_count;
1120	}
1121	else
1122	{
1123	// Non Anti-aliased Fill
1124	const int idx_count = (points_count - 2)*3;
1125	const int vtx_count = points_count;
1126	PrimReserve(idx_count, vtx_count);
1127	for (int i = 0; i < vtx_count; i++)
1128	{
1129	_VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
1130	_VtxWritePtr++;
1131	}
1132	for (int i = 2; i < points_count; i++)
1133	{
1134	_IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + i - 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + i);
1135	_IdxWritePtr += 3;
1136	}
1137	_VtxCurrentIdx += (ImDrawIdx)vtx_count;
1138	}
1139	}
1140
1141	void ImDrawList::_PathArcToFastEx(const ImVec2& center, float radius, int a_min_sample, int a_max_sample, int a_step)
1142	{
1143	if (radius < 0.5f)
1144	{
1145	_Path.push_back(v: center);
1146	return;
1147	}
1148
1149	// Calculate arc auto segment step size
1150	if (a_step <= 0)
1151	a_step = IM_DRAWLIST_ARCFAST_SAMPLE_MAX / _CalcCircleAutoSegmentCount(radius);
1152
1153	// Make sure we never do steps larger than one quarter of the circle
1154	a_step = ImClamp(v: a_step, mn: 1, IM_DRAWLIST_ARCFAST_TABLE_SIZE / 4);
1155
1156	const int sample_range = ImAbs(x: a_max_sample - a_min_sample);
1157	const int a_next_step = a_step;
1158
1159	int samples = sample_range + 1;
1160	bool extra_max_sample = false;
1161	if (a_step > 1)
1162	{
1163	samples = sample_range / a_step + 1;
1164	const int overstep = sample_range % a_step;
1165
1166	if (overstep > 0)
1167	{
1168	extra_max_sample = true;
1169	samples++;
1170
1171	// When we have overstep to avoid awkwardly looking one long line and one tiny one at the end,
1172	// distribute first step range evenly between them by reducing first step size.
1173	if (sample_range > 0)
1174	a_step -= (a_step - overstep) / 2;
1175	}
1176	}
1177
1178	_Path.resize(new_size: _Path.Size + samples);
1179	ImVec2* out_ptr = _Path.Data + (_Path.Size - samples);
1180
1181	int sample_index = a_min_sample;
1182	if (sample_index < 0 || sample_index >= IM_DRAWLIST_ARCFAST_SAMPLE_MAX)
1183	{
1184	sample_index = sample_index % IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1185	if (sample_index < 0)
1186	sample_index += IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1187	}
1188
1189	if (a_max_sample >= a_min_sample)
1190	{
1191	for (int a = a_min_sample; a <= a_max_sample; a += a_step, sample_index += a_step, a_step = a_next_step)
1192	{
1193	// a_step is clamped to IM_DRAWLIST_ARCFAST_SAMPLE_MAX, so we have guaranteed that it will not wrap over range twice or more
1194	if (sample_index >= IM_DRAWLIST_ARCFAST_SAMPLE_MAX)
1195	sample_index -= IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1196
1197	const ImVec2 s = _Data->ArcFastVtx[sample_index];
1198	out_ptr->x = center.x + s.x * radius;
1199	out_ptr->y = center.y + s.y * radius;
1200	out_ptr++;
1201	}
1202	}
1203	else
1204	{
1205	for (int a = a_min_sample; a >= a_max_sample; a -= a_step, sample_index -= a_step, a_step = a_next_step)
1206	{
1207	// a_step is clamped to IM_DRAWLIST_ARCFAST_SAMPLE_MAX, so we have guaranteed that it will not wrap over range twice or more
1208	if (sample_index < 0)
1209	sample_index += IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1210
1211	const ImVec2 s = _Data->ArcFastVtx[sample_index];
1212	out_ptr->x = center.x + s.x * radius;
1213	out_ptr->y = center.y + s.y * radius;
1214	out_ptr++;
1215	}
1216	}
1217
1218	if (extra_max_sample)
1219	{
1220	int normalized_max_sample = a_max_sample % IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1221	if (normalized_max_sample < 0)
1222	normalized_max_sample += IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1223
1224	const ImVec2 s = _Data->ArcFastVtx[normalized_max_sample];
1225	out_ptr->x = center.x + s.x * radius;
1226	out_ptr->y = center.y + s.y * radius;
1227	out_ptr++;
1228	}
1229
1230	IM_ASSERT_PARANOID(_Path.Data + _Path.Size == out_ptr);
1231	}
1232
1233	void ImDrawList::_PathArcToN(const ImVec2& center, float radius, float a_min, float a_max, int num_segments)
1234	{
1235	if (radius < 0.5f)
1236	{
1237	_Path.push_back(v: center);
1238	return;
1239	}
1240
1241	// Note that we are adding a point at both a_min and a_max.
1242	// If you are trying to draw a full closed circle you don't want the overlapping points!
1243	_Path.reserve(new_capacity: _Path.Size + (num_segments + 1));
1244	for (int i = 0; i <= num_segments; i++)
1245	{
1246	const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
1247	_Path.push_back(v: ImVec2(center.x + ImCos(a) * radius, center.y + ImSin(a) * radius));
1248	}
1249	}
1250
1251	// 0: East, 3: South, 6: West, 9: North, 12: East
1252	void ImDrawList::PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12)
1253	{
1254	if (radius < 0.5f)
1255	{
1256	_Path.push_back(v: center);
1257	return;
1258	}
1259	_PathArcToFastEx(center, radius, a_min_sample: a_min_of_12 * IM_DRAWLIST_ARCFAST_SAMPLE_MAX / 12, a_max_sample: a_max_of_12 * IM_DRAWLIST_ARCFAST_SAMPLE_MAX / 12, a_step: 0);
1260	}
1261
1262	void ImDrawList::PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments)
1263	{
1264	if (radius < 0.5f)
1265	{
1266	_Path.push_back(v: center);
1267	return;
1268	}
1269
1270	if (num_segments > 0)
1271	{
1272	_PathArcToN(center, radius, a_min, a_max, num_segments);
1273	return;
1274	}
1275
1276	// Automatic segment count
1277	if (radius <= _Data->ArcFastRadiusCutoff)
1278	{
1279	const bool a_is_reverse = a_max < a_min;
1280
1281	// We are going to use precomputed values for mid samples.
1282	// Determine first and last sample in lookup table that belong to the arc.
1283	const float a_min_sample_f = IM_DRAWLIST_ARCFAST_SAMPLE_MAX * a_min / (IM_PI * 2.0f);
1284	const float a_max_sample_f = IM_DRAWLIST_ARCFAST_SAMPLE_MAX * a_max / (IM_PI * 2.0f);
1285
1286	const int a_min_sample = a_is_reverse ? (int)ImFloor(f: a_min_sample_f) : (int)ImCeil(a_min_sample_f);
1287	const int a_max_sample = a_is_reverse ? (int)ImCeil(a_max_sample_f) : (int)ImFloor(f: a_max_sample_f);
1288	const int a_mid_samples = a_is_reverse ? ImMax(lhs: a_min_sample - a_max_sample, rhs: 0) : ImMax(lhs: a_max_sample - a_min_sample, rhs: 0);
1289
1290	const float a_min_segment_angle = a_min_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1291	const float a_max_segment_angle = a_max_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1292	const bool a_emit_start = ImAbs(x: a_min_segment_angle - a_min) >= 1e-5f;
1293	const bool a_emit_end = ImAbs(x: a_max - a_max_segment_angle) >= 1e-5f;
1294
1295	_Path.reserve(new_capacity: _Path.Size + (a_mid_samples + 1 + (a_emit_start ? 1 : 0) + (a_emit_end ? 1 : 0)));
1296	if (a_emit_start)
1297	_Path.push_back(v: ImVec2(center.x + ImCos(a_min) * radius, center.y + ImSin(a_min) * radius));
1298	if (a_mid_samples > 0)
1299	_PathArcToFastEx(center, radius, a_min_sample, a_max_sample, a_step: 0);
1300	if (a_emit_end)
1301	_Path.push_back(v: ImVec2(center.x + ImCos(a_max) * radius, center.y + ImSin(a_max) * radius));
1302	}
1303	else
1304	{
1305	const float arc_length = ImAbs(x: a_max - a_min);
1306	const int circle_segment_count = _CalcCircleAutoSegmentCount(radius);
1307	const int arc_segment_count = ImMax(lhs: (int)ImCeil(circle_segment_count * arc_length / (IM_PI * 2.0f)), rhs: (int)(2.0f * IM_PI / arc_length));
1308	_PathArcToN(center, radius, a_min, a_max, num_segments: arc_segment_count);
1309	}
1310	}
1311
1312	void ImDrawList::PathEllipticalArcTo(const ImVec2& center, const ImVec2& radius, float rot, float a_min, float a_max, int num_segments)
1313	{
1314	if (num_segments <= 0)
1315	num_segments = _CalcCircleAutoSegmentCount(radius: ImMax(lhs: radius.x, rhs: radius.y)); // A bit pessimistic, maybe there's a better computation to do here.
1316
1317	_Path.reserve(new_capacity: _Path.Size + (num_segments + 1));
1318
1319	const float cos_rot = ImCos(rot);
1320	const float sin_rot = ImSin(rot);
1321	for (int i = 0; i <= num_segments; i++)
1322	{
1323	const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
1324	ImVec2 point(ImCos(a) * radius.x, ImSin(a) * radius.y);
1325	const ImVec2 rel((point.x * cos_rot) - (point.y * sin_rot), (point.x * sin_rot) + (point.y * cos_rot));
1326	point.x = rel.x + center.x;
1327	point.y = rel.y + center.y;
1328	_Path.push_back(v: point);
1329	}
1330	}
1331
1332	ImVec2 ImBezierCubicCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, float t)
1333	{
1334	float u = 1.0f - t;
1335	float w1 = u * u * u;
1336	float w2 = 3 * u * u * t;
1337	float w3 = 3 * u * t * t;
1338	float w4 = t * t * t;
1339	return ImVec2(w1 * p1.x + w2 * p2.x + w3 * p3.x + w4 * p4.x, w1 * p1.y + w2 * p2.y + w3 * p3.y + w4 * p4.y);
1340	}
1341
1342	ImVec2 ImBezierQuadraticCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, float t)
1343	{
1344	float u = 1.0f - t;
1345	float w1 = u * u;
1346	float w2 = 2 * u * t;
1347	float w3 = t * t;
1348	return ImVec2(w1 * p1.x + w2 * p2.x + w3 * p3.x, w1 * p1.y + w2 * p2.y + w3 * p3.y);
1349	}
1350
1351	// Closely mimics ImBezierCubicClosestPointCasteljau() in imgui.cpp
1352	static void PathBezierCubicCurveToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4, float tess_tol, int level)
1353	{
1354	float dx = x4 - x1;
1355	float dy = y4 - y1;
1356	float d2 = (x2 - x4) * dy - (y2 - y4) * dx;
1357	float d3 = (x3 - x4) * dy - (y3 - y4) * dx;
1358	d2 = (d2 >= 0) ? d2 : -d2;
1359	d3 = (d3 >= 0) ? d3 : -d3;
1360	if ((d2 + d3) * (d2 + d3) < tess_tol * (dx * dx + dy * dy))
1361	{
1362	path->push_back(v: ImVec2(x4, y4));
1363	}
1364	else if (level < 10)
1365	{
1366	float x12 = (x1 + x2) * 0.5f, y12 = (y1 + y2) * 0.5f;
1367	float x23 = (x2 + x3) * 0.5f, y23 = (y2 + y3) * 0.5f;
1368	float x34 = (x3 + x4) * 0.5f, y34 = (y3 + y4) * 0.5f;
1369	float x123 = (x12 + x23) * 0.5f, y123 = (y12 + y23) * 0.5f;
1370	float x234 = (x23 + x34) * 0.5f, y234 = (y23 + y34) * 0.5f;
1371	float x1234 = (x123 + x234) * 0.5f, y1234 = (y123 + y234) * 0.5f;
1372	PathBezierCubicCurveToCasteljau(path, x1, y1, x2: x12, y2: y12, x3: x123, y3: y123, x4: x1234, y4: y1234, tess_tol, level: level + 1);
1373	PathBezierCubicCurveToCasteljau(path, x1: x1234, y1: y1234, x2: x234, y2: y234, x3: x34, y3: y34, x4, y4, tess_tol, level: level + 1);
1374	}
1375	}
1376
1377	static void PathBezierQuadraticCurveToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float tess_tol, int level)
1378	{
1379	float dx = x3 - x1, dy = y3 - y1;
1380	float det = (x2 - x3) * dy - (y2 - y3) * dx;
1381	if (det * det * 4.0f < tess_tol * (dx * dx + dy * dy))
1382	{
1383	path->push_back(v: ImVec2(x3, y3));
1384	}
1385	else if (level < 10)
1386	{
1387	float x12 = (x1 + x2) * 0.5f, y12 = (y1 + y2) * 0.5f;
1388	float x23 = (x2 + x3) * 0.5f, y23 = (y2 + y3) * 0.5f;
1389	float x123 = (x12 + x23) * 0.5f, y123 = (y12 + y23) * 0.5f;
1390	PathBezierQuadraticCurveToCasteljau(path, x1, y1, x2: x12, y2: y12, x3: x123, y3: y123, tess_tol, level: level + 1);
1391	PathBezierQuadraticCurveToCasteljau(path, x1: x123, y1: y123, x2: x23, y2: y23, x3, y3, tess_tol, level: level + 1);
1392	}
1393	}
1394
1395	void ImDrawList::PathBezierCubicCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments)
1396	{
1397	ImVec2 p1 = _Path.back();
1398	if (num_segments == 0)
1399	{
1400	IM_ASSERT(_Data->CurveTessellationTol > 0.0f);
1401	PathBezierCubicCurveToCasteljau(path: &_Path, x1: p1.x, y1: p1.y, x2: p2.x, y2: p2.y, x3: p3.x, y3: p3.y, x4: p4.x, y4: p4.y, tess_tol: _Data->CurveTessellationTol, level: 0); // Auto-tessellated
1402	}
1403	else
1404	{
1405	float t_step = 1.0f / (float)num_segments;
1406	for (int i_step = 1; i_step <= num_segments; i_step++)
1407	_Path.push_back(v: ImBezierCubicCalc(p1, p2, p3, p4, t: t_step * i_step));
1408	}
1409	}
1410
1411	void ImDrawList::PathBezierQuadraticCurveTo(const ImVec2& p2, const ImVec2& p3, int num_segments)
1412	{
1413	ImVec2 p1 = _Path.back();
1414	if (num_segments == 0)
1415	{
1416	IM_ASSERT(_Data->CurveTessellationTol > 0.0f);
1417	PathBezierQuadraticCurveToCasteljau(path: &_Path, x1: p1.x, y1: p1.y, x2: p2.x, y2: p2.y, x3: p3.x, y3: p3.y, tess_tol: _Data->CurveTessellationTol, level: 0);// Auto-tessellated
1418	}
1419	else
1420	{
1421	float t_step = 1.0f / (float)num_segments;
1422	for (int i_step = 1; i_step <= num_segments; i_step++)
1423	_Path.push_back(v: ImBezierQuadraticCalc(p1, p2, p3, t: t_step * i_step));
1424	}
1425	}
1426
1427	static inline ImDrawFlags FixRectCornerFlags(ImDrawFlags flags)
1428	{
1429	/*
1430	IM_STATIC_ASSERT(ImDrawFlags_RoundCornersTopLeft == (1 << 4));
1431	#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
1432	// Obsoleted in 1.82 (from February 2021). This code was stripped/simplified and mostly commented in 1.90 (from September 2023)
1433	// - Legacy Support for hard coded ~0 (used to be a suggested equivalent to ImDrawCornerFlags_All)
1434	if (flags == ~0) { return ImDrawFlags_RoundCornersAll; }
1435	// - Legacy Support for hard coded 0x01 to 0x0F (matching 15 out of 16 old flags combinations). Read details in older version of this code.
1436	if (flags >= 0x01 && flags <= 0x0F) { return (flags << 4); }
1437	// We cannot support hard coded 0x00 with 'float rounding > 0.0f' --> replace with ImDrawFlags_RoundCornersNone or use 'float rounding = 0.0f'
1438	#endif
1439	*/
1440	// If this assert triggers, please update your code replacing hardcoded values with new ImDrawFlags_RoundCorners* values.
1441	// Note that ImDrawFlags_Closed (== 0x01) is an invalid flag for AddRect(), AddRectFilled(), PathRect() etc. anyway.
1442	// See details in 1.82 Changelog as well as 2021/03/12 and 2023/09/08 entries in "API BREAKING CHANGES" section.
1443	IM_ASSERT((flags & 0x0F) == 0 && "Misuse of legacy hardcoded ImDrawCornerFlags values!");
1444
1445	if ((flags & ImDrawFlags_RoundCornersMask_) == 0)
1446	flags |= ImDrawFlags_RoundCornersAll;
1447
1448	return flags;
1449	}
1450
1451	void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, ImDrawFlags flags)
1452	{
1453	if (rounding >= 0.5f)
1454	{
1455	flags = FixRectCornerFlags(flags);
1456	rounding = ImMin(lhs: rounding, ImFabs(b.x - a.x) * (((flags & ImDrawFlags_RoundCornersTop) == ImDrawFlags_RoundCornersTop) || ((flags & ImDrawFlags_RoundCornersBottom) == ImDrawFlags_RoundCornersBottom) ? 0.5f : 1.0f) - 1.0f);
1457	rounding = ImMin(lhs: rounding, ImFabs(b.y - a.y) * (((flags & ImDrawFlags_RoundCornersLeft) == ImDrawFlags_RoundCornersLeft) || ((flags & ImDrawFlags_RoundCornersRight) == ImDrawFlags_RoundCornersRight) ? 0.5f : 1.0f) - 1.0f);
1458	}
1459	if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
1460	{
1461	PathLineTo(pos: a);
1462	PathLineTo(pos: ImVec2(b.x, a.y));
1463	PathLineTo(pos: b);
1464	PathLineTo(pos: ImVec2(a.x, b.y));
1465	}
1466	else
1467	{
1468	const float rounding_tl = (flags & ImDrawFlags_RoundCornersTopLeft) ? rounding : 0.0f;
1469	const float rounding_tr = (flags & ImDrawFlags_RoundCornersTopRight) ? rounding : 0.0f;
1470	const float rounding_br = (flags & ImDrawFlags_RoundCornersBottomRight) ? rounding : 0.0f;
1471	const float rounding_bl = (flags & ImDrawFlags_RoundCornersBottomLeft) ? rounding : 0.0f;
1472	PathArcToFast(center: ImVec2(a.x + rounding_tl, a.y + rounding_tl), radius: rounding_tl, a_min_of_12: 6, a_max_of_12: 9);
1473	PathArcToFast(center: ImVec2(b.x - rounding_tr, a.y + rounding_tr), radius: rounding_tr, a_min_of_12: 9, a_max_of_12: 12);
1474	PathArcToFast(center: ImVec2(b.x - rounding_br, b.y - rounding_br), radius: rounding_br, a_min_of_12: 0, a_max_of_12: 3);
1475	PathArcToFast(center: ImVec2(a.x + rounding_bl, b.y - rounding_bl), radius: rounding_bl, a_min_of_12: 3, a_max_of_12: 6);
1476	}
1477	}
1478
1479	void ImDrawList::AddLine(const ImVec2& p1, const ImVec2& p2, ImU32 col, float thickness)
1480	{
1481	if ((col & IM_COL32_A_MASK) == 0)
1482	return;
1483	PathLineTo(pos: p1 + ImVec2(0.5f, 0.5f));
1484	PathLineTo(pos: p2 + ImVec2(0.5f, 0.5f));
1485	PathStroke(col, flags: 0, thickness);
1486	}
1487
1488	// p_min = upper-left, p_max = lower-right
1489	// Note we don't render 1 pixels sized rectangles properly.
1490	void ImDrawList::AddRect(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawFlags flags, float thickness)
1491	{
1492	if ((col & IM_COL32_A_MASK) == 0)
1493	return;
1494	if (Flags & ImDrawListFlags_AntiAliasedLines)
1495	PathRect(a: p_min + ImVec2(0.50f, 0.50f), b: p_max - ImVec2(0.50f, 0.50f), rounding, flags);
1496	else
1497	PathRect(a: p_min + ImVec2(0.50f, 0.50f), b: p_max - ImVec2(0.49f, 0.49f), rounding, flags); // Better looking lower-right corner and rounded non-AA shapes.
1498	PathStroke(col, flags: ImDrawFlags_Closed, thickness);
1499	}
1500
1501	void ImDrawList::AddRectFilled(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawFlags flags)
1502	{
1503	if ((col & IM_COL32_A_MASK) == 0)
1504	return;
1505	if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
1506	{
1507	PrimReserve(idx_count: 6, vtx_count: 4);
1508	PrimRect(a: p_min, c: p_max, col);
1509	}
1510	else
1511	{
1512	PathRect(a: p_min, b: p_max, rounding, flags);
1513	PathFillConvex(col);
1514	}
1515	}
1516
1517	// p_min = upper-left, p_max = lower-right
1518	void ImDrawList::AddRectFilledMultiColor(const ImVec2& p_min, const ImVec2& p_max, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left)
1519	{
1520	if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0)
1521	return;
1522
1523	const ImVec2 uv = _Data->TexUvWhitePixel;
1524	PrimReserve(idx_count: 6, vtx_count: 4);
1525	PrimWriteIdx(idx: (ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx(idx: (ImDrawIdx)(_VtxCurrentIdx + 1)); PrimWriteIdx(idx: (ImDrawIdx)(_VtxCurrentIdx + 2));
1526	PrimWriteIdx(idx: (ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx(idx: (ImDrawIdx)(_VtxCurrentIdx + 2)); PrimWriteIdx(idx: (ImDrawIdx)(_VtxCurrentIdx + 3));
1527	PrimWriteVtx(pos: p_min, uv, col: col_upr_left);
1528	PrimWriteVtx(pos: ImVec2(p_max.x, p_min.y), uv, col: col_upr_right);
1529	PrimWriteVtx(pos: p_max, uv, col: col_bot_right);
1530	PrimWriteVtx(pos: ImVec2(p_min.x, p_max.y), uv, col: col_bot_left);
1531	}
1532
1533	void ImDrawList::AddQuad(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness)
1534	{
1535	if ((col & IM_COL32_A_MASK) == 0)
1536	return;
1537
1538	PathLineTo(pos: p1);
1539	PathLineTo(pos: p2);
1540	PathLineTo(pos: p3);
1541	PathLineTo(pos: p4);
1542	PathStroke(col, flags: ImDrawFlags_Closed, thickness);
1543	}
1544
1545	void ImDrawList::AddQuadFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col)
1546	{
1547	if ((col & IM_COL32_A_MASK) == 0)
1548	return;
1549
1550	PathLineTo(pos: p1);
1551	PathLineTo(pos: p2);
1552	PathLineTo(pos: p3);
1553	PathLineTo(pos: p4);
1554	PathFillConvex(col);
1555	}
1556
1557	void ImDrawList::AddTriangle(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness)
1558	{
1559	if ((col & IM_COL32_A_MASK) == 0)
1560	return;
1561
1562	PathLineTo(pos: p1);
1563	PathLineTo(pos: p2);
1564	PathLineTo(pos: p3);
1565	PathStroke(col, flags: ImDrawFlags_Closed, thickness);
1566	}
1567
1568	void ImDrawList::AddTriangleFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col)
1569	{
1570	if ((col & IM_COL32_A_MASK) == 0)
1571	return;
1572
1573	PathLineTo(pos: p1);
1574	PathLineTo(pos: p2);
1575	PathLineTo(pos: p3);
1576	PathFillConvex(col);
1577	}
1578
1579	void ImDrawList::AddCircle(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
1580	{
1581	if ((col & IM_COL32_A_MASK) == 0 || radius < 0.5f)
1582	return;
1583
1584	if (num_segments <= 0)
1585	{
1586	// Use arc with automatic segment count
1587	_PathArcToFastEx(center, radius: radius - 0.5f, a_min_sample: 0, IM_DRAWLIST_ARCFAST_SAMPLE_MAX, a_step: 0);
1588	_Path.Size--;
1589	}
1590	else
1591	{
1592	// Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
1593	num_segments = ImClamp(v: num_segments, mn: 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
1594
1595	// Because we are filling a closed shape we remove 1 from the count of segments/points
1596	const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1597	PathArcTo(center, radius: radius - 0.5f, a_min: 0.0f, a_max, num_segments: num_segments - 1);
1598	}
1599
1600	PathStroke(col, flags: ImDrawFlags_Closed, thickness);
1601	}
1602
1603	void ImDrawList::AddCircleFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
1604	{
1605	if ((col & IM_COL32_A_MASK) == 0 || radius < 0.5f)
1606	return;
1607
1608	if (num_segments <= 0)
1609	{
1610	// Use arc with automatic segment count
1611	_PathArcToFastEx(center, radius, a_min_sample: 0, IM_DRAWLIST_ARCFAST_SAMPLE_MAX, a_step: 0);
1612	_Path.Size--;
1613	}
1614	else
1615	{
1616	// Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
1617	num_segments = ImClamp(v: num_segments, mn: 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
1618
1619	// Because we are filling a closed shape we remove 1 from the count of segments/points
1620	const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1621	PathArcTo(center, radius, a_min: 0.0f, a_max, num_segments: num_segments - 1);
1622	}
1623
1624	PathFillConvex(col);
1625	}
1626
1627	// Guaranteed to honor 'num_segments'
1628	void ImDrawList::AddNgon(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
1629	{
1630	if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
1631	return;
1632
1633	// Because we are filling a closed shape we remove 1 from the count of segments/points
1634	const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1635	PathArcTo(center, radius: radius - 0.5f, a_min: 0.0f, a_max, num_segments: num_segments - 1);
1636	PathStroke(col, flags: ImDrawFlags_Closed, thickness);
1637	}
1638
1639	// Guaranteed to honor 'num_segments'
1640	void ImDrawList::AddNgonFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
1641	{
1642	if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
1643	return;
1644
1645	// Because we are filling a closed shape we remove 1 from the count of segments/points
1646	const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1647	PathArcTo(center, radius, a_min: 0.0f, a_max, num_segments: num_segments - 1);
1648	PathFillConvex(col);
1649	}
1650
1651	// Ellipse
1652	void ImDrawList::AddEllipse(const ImVec2& center, const ImVec2& radius, ImU32 col, float rot, int num_segments, float thickness)
1653	{
1654	if ((col & IM_COL32_A_MASK) == 0)
1655	return;
1656
1657	if (num_segments <= 0)
1658	num_segments = _CalcCircleAutoSegmentCount(radius: ImMax(lhs: radius.x, rhs: radius.y)); // A bit pessimistic, maybe there's a better computation to do here.
1659
1660	// Because we are filling a closed shape we remove 1 from the count of segments/points
1661	const float a_max = IM_PI * 2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
1662	PathEllipticalArcTo(center, radius, rot, a_min: 0.0f, a_max, num_segments: num_segments - 1);
1663	PathStroke(col, flags: true, thickness);
1664	}
1665
1666	void ImDrawList::AddEllipseFilled(const ImVec2& center, const ImVec2& radius, ImU32 col, float rot, int num_segments)
1667	{
1668	if ((col & IM_COL32_A_MASK) == 0)
1669	return;
1670
1671	if (num_segments <= 0)
1672	num_segments = _CalcCircleAutoSegmentCount(radius: ImMax(lhs: radius.x, rhs: radius.y)); // A bit pessimistic, maybe there's a better computation to do here.
1673
1674	// Because we are filling a closed shape we remove 1 from the count of segments/points
1675	const float a_max = IM_PI * 2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
1676	PathEllipticalArcTo(center, radius, rot, a_min: 0.0f, a_max, num_segments: num_segments - 1);
1677	PathFillConvex(col);
1678	}
1679
1680	// Cubic Bezier takes 4 controls points
1681	void ImDrawList::AddBezierCubic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments)
1682	{
1683	if ((col & IM_COL32_A_MASK) == 0)
1684	return;
1685
1686	PathLineTo(pos: p1);
1687	PathBezierCubicCurveTo(p2, p3, p4, num_segments);
1688	PathStroke(col, flags: 0, thickness);
1689	}
1690
1691	// Quadratic Bezier takes 3 controls points
1692	void ImDrawList::AddBezierQuadratic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness, int num_segments)
1693	{
1694	if ((col & IM_COL32_A_MASK) == 0)
1695	return;
1696
1697	PathLineTo(pos: p1);
1698	PathBezierQuadraticCurveTo(p2, p3, num_segments);
1699	PathStroke(col, flags: 0, thickness);
1700	}
1701
1702	void ImDrawList::AddText(ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end, float wrap_width, const ImVec4* cpu_fine_clip_rect)
1703	{
1704	if ((col & IM_COL32_A_MASK) == 0)
1705	return;
1706
1707	// Accept null ranges
1708	if (text_begin == text_end || text_begin[0] == 0)
1709	return;
1710	// No need to strlen() here: font->RenderText() will do it and may early out.
1711
1712	// Pull default font/size from the shared ImDrawListSharedData instance
1713	if (font == NULL)
1714	font = _Data->Font;
1715	if (font_size == 0.0f)
1716	font_size = _Data->FontSize;
1717
1718	ImVec4 clip_rect = _CmdHeader.ClipRect;
1719	if (cpu_fine_clip_rect)
1720	{
1721	clip_rect.x = ImMax(lhs: clip_rect.x, rhs: cpu_fine_clip_rect->x);
1722	clip_rect.y = ImMax(lhs: clip_rect.y, rhs: cpu_fine_clip_rect->y);
1723	clip_rect.z = ImMin(lhs: clip_rect.z, rhs: cpu_fine_clip_rect->z);
1724	clip_rect.w = ImMin(lhs: clip_rect.w, rhs: cpu_fine_clip_rect->w);
1725	}
1726	font->RenderText(draw_list: this, size: font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip: cpu_fine_clip_rect != NULL);
1727	}
1728
1729	void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end)
1730	{
1731	AddText(font: _Data->Font, font_size: _Data->FontSize, pos, col, text_begin, text_end);
1732	}
1733
1734	void ImDrawList::AddImage(ImTextureRef tex_ref, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col)
1735	{
1736	if ((col & IM_COL32_A_MASK) == 0)
1737	return;
1738
1739	const bool push_texture_id = tex_ref != _CmdHeader.TexRef;
1740	if (push_texture_id)
1741	PushTexture(tex_ref);
1742
1743	PrimReserve(idx_count: 6, vtx_count: 4);
1744	PrimRectUV(a: p_min, c: p_max, uv_a: uv_min, uv_c: uv_max, col);
1745
1746	if (push_texture_id)
1747	PopTexture();
1748	}
1749
1750	void ImDrawList::AddImageQuad(ImTextureRef tex_ref, const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& uv1, const ImVec2& uv2, const ImVec2& uv3, const ImVec2& uv4, ImU32 col)
1751	{
1752	if ((col & IM_COL32_A_MASK) == 0)
1753	return;
1754
1755	const bool push_texture_id = tex_ref != _CmdHeader.TexRef;
1756	if (push_texture_id)
1757	PushTexture(tex_ref);
1758
1759	PrimReserve(idx_count: 6, vtx_count: 4);
1760	PrimQuadUV(a: p1, b: p2, c: p3, d: p4, uv_a: uv1, uv_b: uv2, uv_c: uv3, uv_d: uv4, col);
1761
1762	if (push_texture_id)
1763	PopTexture();
1764	}
1765
1766	void ImDrawList::AddImageRounded(ImTextureRef tex_ref, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col, float rounding, ImDrawFlags flags)
1767	{
1768	if ((col & IM_COL32_A_MASK) == 0)
1769	return;
1770
1771	flags = FixRectCornerFlags(flags);
1772	if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
1773	{
1774	AddImage(tex_ref, p_min, p_max, uv_min, uv_max, col);
1775	return;
1776	}
1777
1778	const bool push_texture_id = tex_ref != _CmdHeader.TexRef;
1779	if (push_texture_id)
1780	PushTexture(tex_ref);
1781
1782	int vert_start_idx = VtxBuffer.Size;
1783	PathRect(a: p_min, b: p_max, rounding, flags);
1784	PathFillConvex(col);
1785	int vert_end_idx = VtxBuffer.Size;
1786	ImGui::ShadeVertsLinearUV(draw_list: this, vert_start_idx, vert_end_idx, a: p_min, b: p_max, uv_a: uv_min, uv_b: uv_max, clamp: true);
1787
1788	if (push_texture_id)
1789	PopTexture();
1790	}
1791
1792	//-----------------------------------------------------------------------------
1793	// [SECTION] ImTriangulator, ImDrawList concave polygon fill
1794	//-----------------------------------------------------------------------------
1795	// Triangulate concave polygons. Based on "Triangulation by Ear Clipping" paper, O(N^2) complexity.
1796	// Reference: https://www.geometrictools.com/Documentation/TriangulationByEarClipping.pdf
1797	// Provided as a convenience for user but not used by main library.
1798	//-----------------------------------------------------------------------------
1799	// - ImTriangulator [Internal]
1800	// - AddConcavePolyFilled()
1801	//-----------------------------------------------------------------------------
1802
1803	enum ImTriangulatorNodeType
1804	{
1805	ImTriangulatorNodeType_Convex,
1806	ImTriangulatorNodeType_Ear,
1807	ImTriangulatorNodeType_Reflex
1808	};
1809
1810	struct ImTriangulatorNode
1811	{
1812	ImTriangulatorNodeType Type;
1813	int Index;
1814	ImVec2 Pos;
1815	ImTriangulatorNode* Next;
1816	ImTriangulatorNode* Prev;
1817
1818	void Unlink() { Next->Prev = Prev; Prev->Next = Next; }
1819	};
1820
1821	struct ImTriangulatorNodeSpan
1822	{
1823	ImTriangulatorNode** Data = NULL;
1824	int Size = 0;
1825
1826	void push_back(ImTriangulatorNode* node) { Data[Size++] = node; }
1827	void find_erase_unsorted(int idx) { for (int i = Size - 1; i >= 0; i--) if (Data[i]->Index == idx) { Data[i] = Data[Size - 1]; Size--; return; } }
1828	};
1829
1830	struct ImTriangulator
1831	{
1832	static int EstimateTriangleCount(int points_count) { return (points_count < 3) ? 0 : points_count - 2; }
1833	static int EstimateScratchBufferSize(int points_count) { return sizeof(ImTriangulatorNode) * points_count + sizeof(ImTriangulatorNode*) * points_count * 2; }
1834
1835	void Init(const ImVec2* points, int points_count, void* scratch_buffer);
1836	void GetNextTriangle(unsigned int out_triangle[3]); // Return relative indexes for next triangle
1837
1838	// Internal functions
1839	void BuildNodes(const ImVec2* points, int points_count);
1840	void BuildReflexes();
1841	void BuildEars();
1842	void FlipNodeList();
1843	bool IsEar(int i0, int i1, int i2, const ImVec2& v0, const ImVec2& v1, const ImVec2& v2) const;
1844	void ReclassifyNode(ImTriangulatorNode* node);
1845
1846	// Internal members
1847	int _TrianglesLeft = 0;
1848	ImTriangulatorNode* _Nodes = NULL;
1849	ImTriangulatorNodeSpan _Ears;
1850	ImTriangulatorNodeSpan _Reflexes;
1851	};
1852
1853	// Distribute storage for nodes, ears and reflexes.
1854	// FIXME-OPT: if everything is convex, we could report it to caller and let it switch to an convex renderer
1855	// (this would require first building reflexes to bail to convex if empty, without even building nodes)
1856	void ImTriangulator::Init(const ImVec2* points, int points_count, void* scratch_buffer)
1857	{
1858	IM_ASSERT(scratch_buffer != NULL && points_count >= 3);
1859	_TrianglesLeft = EstimateTriangleCount(points_count);
1860	_Nodes = (ImTriangulatorNode*)scratch_buffer; // points_count x Node
1861	_Ears.Data = (ImTriangulatorNode**)(_Nodes + points_count); // points_count x Node*
1862	_Reflexes.Data = (ImTriangulatorNode**)(_Nodes + points_count) + points_count; // points_count x Node*
1863	BuildNodes(points, points_count);
1864	BuildReflexes();
1865	BuildEars();
1866	}
1867
1868	void ImTriangulator::BuildNodes(const ImVec2* points, int points_count)
1869	{
1870	for (int i = 0; i < points_count; i++)
1871	{
1872	_Nodes[i].Type = ImTriangulatorNodeType_Convex;
1873	_Nodes[i].Index = i;
1874	_Nodes[i].Pos = points[i];
1875	_Nodes[i].Next = _Nodes + i + 1;
1876	_Nodes[i].Prev = _Nodes + i - 1;
1877	}
1878	_Nodes[0].Prev = _Nodes + points_count - 1;
1879	_Nodes[points_count - 1].Next = _Nodes;
1880	}
1881
1882	void ImTriangulator::BuildReflexes()
1883	{
1884	ImTriangulatorNode* n1 = _Nodes;
1885	for (int i = _TrianglesLeft; i >= 0; i--, n1 = n1->Next)
1886	{
1887	if (ImTriangleIsClockwise(a: n1->Prev->Pos, b: n1->Pos, c: n1->Next->Pos))
1888	continue;
1889	n1->Type = ImTriangulatorNodeType_Reflex;
1890	_Reflexes.push_back(node: n1);
1891	}
1892	}
1893
1894	void ImTriangulator::BuildEars()
1895	{
1896	ImTriangulatorNode* n1 = _Nodes;
1897	for (int i = _TrianglesLeft; i >= 0; i--, n1 = n1->Next)
1898	{
1899	if (n1->Type != ImTriangulatorNodeType_Convex)
1900	continue;
1901	if (!IsEar(i0: n1->Prev->Index, i1: n1->Index, i2: n1->Next->Index, v0: n1->Prev->Pos, v1: n1->Pos, v2: n1->Next->Pos))
1902	continue;
1903	n1->Type = ImTriangulatorNodeType_Ear;
1904	_Ears.push_back(node: n1);
1905	}
1906	}
1907
1908	void ImTriangulator::GetNextTriangle(unsigned int out_triangle[3])
1909	{
1910	if (_Ears.Size == 0)
1911	{
1912	FlipNodeList();
1913
1914	ImTriangulatorNode* node = _Nodes;
1915	for (int i = _TrianglesLeft; i >= 0; i--, node = node->Next)
1916	node->Type = ImTriangulatorNodeType_Convex;
1917	_Reflexes.Size = 0;
1918	BuildReflexes();
1919	BuildEars();
1920
1921	// If we still don't have ears, it means geometry is degenerated.
1922	if (_Ears.Size == 0)
1923	{
1924	// Return first triangle available, mimicking the behavior of convex fill.
1925	IM_ASSERT(_TrianglesLeft > 0); // Geometry is degenerated
1926	_Ears.Data[0] = _Nodes;
1927	_Ears.Size = 1;
1928	}
1929	}
1930
1931	ImTriangulatorNode* ear = _Ears.Data[--_Ears.Size];
1932	out_triangle[0] = ear->Prev->Index;
1933	out_triangle[1] = ear->Index;
1934	out_triangle[2] = ear->Next->Index;
1935
1936	ear->Unlink();
1937	if (ear == _Nodes)
1938	_Nodes = ear->Next;
1939
1940	ReclassifyNode(node: ear->Prev);
1941	ReclassifyNode(node: ear->Next);
1942	_TrianglesLeft--;
1943	}
1944
1945	void ImTriangulator::FlipNodeList()
1946	{
1947	ImTriangulatorNode* prev = _Nodes;
1948	ImTriangulatorNode* temp = _Nodes;
1949	ImTriangulatorNode* current = _Nodes->Next;
1950	prev->Next = prev;
1951	prev->Prev = prev;
1952	while (current != _Nodes)
1953	{
1954	temp = current->Next;
1955
1956	current->Next = prev;
1957	prev->Prev = current;
1958	_Nodes->Next = current;
1959	current->Prev = _Nodes;
1960
1961	prev = current;
1962	current = temp;
1963	}
1964	_Nodes = prev;
1965	}
1966
1967	// A triangle is an ear is no other vertex is inside it. We can test reflexes vertices only (see reference algorithm)
1968	bool ImTriangulator::IsEar(int i0, int i1, int i2, const ImVec2& v0, const ImVec2& v1, const ImVec2& v2) const
1969	{
1970	ImTriangulatorNode** p_end = _Reflexes.Data + _Reflexes.Size;
1971	for (ImTriangulatorNode** p = _Reflexes.Data; p < p_end; p++)
1972	{
1973	ImTriangulatorNode* reflex = *p;
1974	if (reflex->Index != i0 && reflex->Index != i1 && reflex->Index != i2)
1975	if (ImTriangleContainsPoint(a: v0, b: v1, c: v2, p: reflex->Pos))
1976	return false;
1977	}
1978	return true;
1979	}
1980
1981	void ImTriangulator::ReclassifyNode(ImTriangulatorNode* n1)
1982	{
1983	// Classify node
1984	ImTriangulatorNodeType type;
1985	const ImTriangulatorNode* n0 = n1->Prev;
1986	const ImTriangulatorNode* n2 = n1->Next;
1987	if (!ImTriangleIsClockwise(a: n0->Pos, b: n1->Pos, c: n2->Pos))
1988	type = ImTriangulatorNodeType_Reflex;
1989	else if (IsEar(i0: n0->Index, i1: n1->Index, i2: n2->Index, v0: n0->Pos, v1: n1->Pos, v2: n2->Pos))
1990	type = ImTriangulatorNodeType_Ear;
1991	else
1992	type = ImTriangulatorNodeType_Convex;
1993
1994	// Update lists when a type changes
1995	if (type == n1->Type)
1996	return;
1997	if (n1->Type == ImTriangulatorNodeType_Reflex)
1998	_Reflexes.find_erase_unsorted(idx: n1->Index);
1999	else if (n1->Type == ImTriangulatorNodeType_Ear)
2000	_Ears.find_erase_unsorted(idx: n1->Index);
2001	if (type == ImTriangulatorNodeType_Reflex)
2002	_Reflexes.push_back(node: n1);
2003	else if (type == ImTriangulatorNodeType_Ear)
2004	_Ears.push_back(node: n1);
2005	n1->Type = type;
2006	}
2007
2008	// Use ear-clipping algorithm to triangulate a simple polygon (no self-interaction, no holes).
2009	// (Reminder: we don't perform any coarse clipping/culling in ImDrawList layer!
2010	// It is up to caller to ensure not making costly calls that will be outside of visible area.
2011	// As concave fill is noticeably more expensive than other primitives, be mindful of this...
2012	// Caller can build AABB of points, and avoid filling if 'draw_list->_CmdHeader.ClipRect.Overlays(points_bb) == false')
2013	void ImDrawList::AddConcavePolyFilled(const ImVec2* points, const int points_count, ImU32 col)
2014	{
2015	if (points_count < 3 || (col & IM_COL32_A_MASK) == 0)
2016	return;
2017
2018	const ImVec2 uv = _Data->TexUvWhitePixel;
2019	ImTriangulator triangulator;
2020	unsigned int triangle[3];
2021	if (Flags & ImDrawListFlags_AntiAliasedFill)
2022	{
2023	// Anti-aliased Fill
2024	const float AA_SIZE = _FringeScale;
2025	const ImU32 col_trans = col & ~IM_COL32_A_MASK;
2026	const int idx_count = (points_count - 2) * 3 + points_count * 6;
2027	const int vtx_count = (points_count * 2);
2028	PrimReserve(idx_count, vtx_count);
2029
2030	// Add indexes for fill
2031	unsigned int vtx_inner_idx = _VtxCurrentIdx;
2032	unsigned int vtx_outer_idx = _VtxCurrentIdx + 1;
2033
2034	_Data->TempBuffer.reserve_discard(new_capacity: (ImTriangulator::EstimateScratchBufferSize(points_count) + sizeof(ImVec2)) / sizeof(ImVec2));
2035	triangulator.Init(points, points_count, scratch_buffer: _Data->TempBuffer.Data);
2036	while (triangulator._TrianglesLeft > 0)
2037	{
2038	triangulator.GetNextTriangle(out_triangle: triangle);
2039	_IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (triangle[0] << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (triangle[1] << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx + (triangle[2] << 1));
2040	_IdxWritePtr += 3;
2041	}
2042
2043	// Compute normals
2044	_Data->TempBuffer.reserve_discard(new_capacity: points_count);
2045	ImVec2* temp_normals = _Data->TempBuffer.Data;
2046	for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
2047	{
2048	const ImVec2& p0 = points[i0];
2049	const ImVec2& p1 = points[i1];
2050	float dx = p1.x - p0.x;
2051	float dy = p1.y - p0.y;
2052	IM_NORMALIZE2F_OVER_ZERO(dx, dy);
2053	temp_normals[i0].x = dy;
2054	temp_normals[i0].y = -dx;
2055	}
2056
2057	for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
2058	{
2059	// Average normals
2060	const ImVec2& n0 = temp_normals[i0];
2061	const ImVec2& n1 = temp_normals[i1];
2062	float dm_x = (n0.x + n1.x) * 0.5f;
2063	float dm_y = (n0.y + n1.y) * 0.5f;
2064	IM_FIXNORMAL2F(dm_x, dm_y);
2065	dm_x *= AA_SIZE * 0.5f;
2066	dm_y *= AA_SIZE * 0.5f;
2067
2068	// Add vertices
2069	_VtxWritePtr[0].pos.x = (points[i1].x - dm_x); _VtxWritePtr[0].pos.y = (points[i1].y - dm_y); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; // Inner
2070	_VtxWritePtr[1].pos.x = (points[i1].x + dm_x); _VtxWritePtr[1].pos.y = (points[i1].y + dm_y); _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans; // Outer
2071	_VtxWritePtr += 2;
2072
2073	// Add indexes for fringes
2074	_IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (i0 << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1));
2075	_IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx + (i1 << 1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1));
2076	_IdxWritePtr += 6;
2077	}
2078	_VtxCurrentIdx += (ImDrawIdx)vtx_count;
2079	}
2080	else
2081	{
2082	// Non Anti-aliased Fill
2083	const int idx_count = (points_count - 2) * 3;
2084	const int vtx_count = points_count;
2085	PrimReserve(idx_count, vtx_count);
2086	for (int i = 0; i < vtx_count; i++)
2087	{
2088	_VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
2089	_VtxWritePtr++;
2090	}
2091	_Data->TempBuffer.reserve_discard(new_capacity: (ImTriangulator::EstimateScratchBufferSize(points_count) + sizeof(ImVec2)) / sizeof(ImVec2));
2092	triangulator.Init(points, points_count, scratch_buffer: _Data->TempBuffer.Data);
2093	while (triangulator._TrianglesLeft > 0)
2094	{
2095	triangulator.GetNextTriangle(out_triangle: triangle);
2096	_IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx + triangle[0]); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + triangle[1]); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + triangle[2]);
2097	_IdxWritePtr += 3;
2098	}
2099	_VtxCurrentIdx += (ImDrawIdx)vtx_count;
2100	}
2101	}
2102
2103	//-----------------------------------------------------------------------------
2104	// [SECTION] ImDrawListSplitter
2105	//-----------------------------------------------------------------------------
2106	// FIXME: This may be a little confusing, trying to be a little too low-level/optimal instead of just doing vector swap..
2107	//-----------------------------------------------------------------------------
2108
2109	void ImDrawListSplitter::ClearFreeMemory()
2110	{
2111	for (int i = 0; i < _Channels.Size; i++)
2112	{
2113	if (i == _Current)
2114	memset(s: &_Channels[i], c: 0, n: sizeof(_Channels[i])); // Current channel is a copy of CmdBuffer/IdxBuffer, don't destruct again
2115	_Channels[i]._CmdBuffer.clear();
2116	_Channels[i]._IdxBuffer.clear();
2117	}
2118	_Current = 0;
2119	_Count = 1;
2120	_Channels.clear();
2121	}
2122
2123	void ImDrawListSplitter::Split(ImDrawList* draw_list, int channels_count)
2124	{
2125	IM_UNUSED(draw_list);
2126	IM_ASSERT(_Current == 0 && _Count <= 1 && "Nested channel splitting is not supported. Please use separate instances of ImDrawListSplitter.");
2127	int old_channels_count = _Channels.Size;
2128	if (old_channels_count < channels_count)
2129	{
2130	_Channels.reserve(new_capacity: channels_count); // Avoid over reserving since this is likely to stay stable
2131	_Channels.resize(new_size: channels_count);
2132	}
2133	_Count = channels_count;
2134
2135	// Channels[] (24/32 bytes each) hold storage that we'll swap with draw_list->_CmdBuffer/_IdxBuffer
2136	// The content of Channels[0] at this point doesn't matter. We clear it to make state tidy in a debugger but we don't strictly need to.
2137	// When we switch to the next channel, we'll copy draw_list->_CmdBuffer/_IdxBuffer into Channels[0] and then Channels[1] into draw_list->CmdBuffer/_IdxBuffer
2138	memset(s: &_Channels[0], c: 0, n: sizeof(ImDrawChannel));
2139	for (int i = 1; i < channels_count; i++)
2140	{
2141	if (i >= old_channels_count)
2142	{
2143	IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel();
2144	}
2145	else
2146	{
2147	_Channels[i]._CmdBuffer.resize(new_size: 0);
2148	_Channels[i]._IdxBuffer.resize(new_size: 0);
2149	}
2150	}
2151	}
2152
2153	void ImDrawListSplitter::Merge(ImDrawList* draw_list)
2154	{
2155	// Note that we never use or rely on _Channels.Size because it is merely a buffer that we never shrink back to 0 to keep all sub-buffers ready for use.
2156	if (_Count <= 1)
2157	return;
2158
2159	SetCurrentChannel(draw_list, channel_idx: 0);
2160	draw_list->_PopUnusedDrawCmd();
2161
2162	// Calculate our final buffer sizes. Also fix the incorrect IdxOffset values in each command.
2163	int new_cmd_buffer_count = 0;
2164	int new_idx_buffer_count = 0;
2165	ImDrawCmd* last_cmd = (_Count > 0 && draw_list->CmdBuffer.Size > 0) ? &draw_list->CmdBuffer.back() : NULL;
2166	int idx_offset = last_cmd ? last_cmd->IdxOffset + last_cmd->ElemCount : 0;
2167	for (int i = 1; i < _Count; i++)
2168	{
2169	ImDrawChannel& ch = _Channels[i];
2170	if (ch._CmdBuffer.Size > 0 && ch._CmdBuffer.back().ElemCount == 0 && ch._CmdBuffer.back().UserCallback == NULL) // Equivalent of PopUnusedDrawCmd()
2171	ch._CmdBuffer.pop_back();
2172
2173	if (ch._CmdBuffer.Size > 0 && last_cmd != NULL)
2174	{
2175	// Do not include ImDrawCmd_AreSequentialIdxOffset() in the compare as we rebuild IdxOffset values ourselves.
2176	// Manipulating IdxOffset (e.g. by reordering draw commands like done by RenderDimmedBackgroundBehindWindow()) is not supported within a splitter.
2177	ImDrawCmd* next_cmd = &ch._CmdBuffer[0];
2178	if (ImDrawCmd_HeaderCompare(last_cmd, next_cmd) == 0 && last_cmd->UserCallback == NULL && next_cmd->UserCallback == NULL)
2179	{
2180	// Merge previous channel last draw command with current channel first draw command if matching.
2181	last_cmd->ElemCount += next_cmd->ElemCount;
2182	idx_offset += next_cmd->ElemCount;
2183	ch._CmdBuffer.erase(it: ch._CmdBuffer.Data); // FIXME-OPT: Improve for multiple merges.
2184	}
2185	}
2186	if (ch._CmdBuffer.Size > 0)
2187	last_cmd = &ch._CmdBuffer.back();
2188	new_cmd_buffer_count += ch._CmdBuffer.Size;
2189	new_idx_buffer_count += ch._IdxBuffer.Size;
2190	for (int cmd_n = 0; cmd_n < ch._CmdBuffer.Size; cmd_n++)
2191	{
2192	ch._CmdBuffer.Data[cmd_n].IdxOffset = idx_offset;
2193	idx_offset += ch._CmdBuffer.Data[cmd_n].ElemCount;
2194	}
2195	}
2196	draw_list->CmdBuffer.resize(new_size: draw_list->CmdBuffer.Size + new_cmd_buffer_count);
2197	draw_list->IdxBuffer.resize(new_size: draw_list->IdxBuffer.Size + new_idx_buffer_count);
2198
2199	// Write commands and indices in order (they are fairly small structures, we don't copy vertices only indices)
2200	ImDrawCmd* cmd_write = draw_list->CmdBuffer.Data + draw_list->CmdBuffer.Size - new_cmd_buffer_count;
2201	ImDrawIdx* idx_write = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size - new_idx_buffer_count;
2202	for (int i = 1; i < _Count; i++)
2203	{
2204	ImDrawChannel& ch = _Channels[i];
2205	if (int sz = ch._CmdBuffer.Size) { memcpy(dest: cmd_write, src: ch._CmdBuffer.Data, n: sz * sizeof(ImDrawCmd)); cmd_write += sz; }
2206	if (int sz = ch._IdxBuffer.Size) { memcpy(dest: idx_write, src: ch._IdxBuffer.Data, n: sz * sizeof(ImDrawIdx)); idx_write += sz; }
2207	}
2208	draw_list->_IdxWritePtr = idx_write;
2209
2210	// Ensure there's always a non-callback draw command trailing the command-buffer
2211	if (draw_list->CmdBuffer.Size == 0 || draw_list->CmdBuffer.back().UserCallback != NULL)
2212	draw_list->AddDrawCmd();
2213
2214	// If current command is used with different settings we need to add a new command
2215	ImDrawCmd* curr_cmd = &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
2216	if (curr_cmd->ElemCount == 0)
2217	ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TexRef, VtxOffset
2218	else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
2219	draw_list->AddDrawCmd();
2220
2221	_Count = 1;
2222	}
2223
2224	void ImDrawListSplitter::SetCurrentChannel(ImDrawList* draw_list, int idx)
2225	{
2226	IM_ASSERT(idx >= 0 && idx < _Count);
2227	if (_Current == idx)
2228	return;
2229
2230	// Overwrite ImVector (12/16 bytes), four times. This is merely a silly optimization instead of doing .swap()
2231	memcpy(dest: &_Channels.Data[_Current]._CmdBuffer, src: &draw_list->CmdBuffer, n: sizeof(draw_list->CmdBuffer));
2232	memcpy(dest: &_Channels.Data[_Current]._IdxBuffer, src: &draw_list->IdxBuffer, n: sizeof(draw_list->IdxBuffer));
2233	_Current = idx;
2234	memcpy(dest: &draw_list->CmdBuffer, src: &_Channels.Data[idx]._CmdBuffer, n: sizeof(draw_list->CmdBuffer));
2235	memcpy(dest: &draw_list->IdxBuffer, src: &_Channels.Data[idx]._IdxBuffer, n: sizeof(draw_list->IdxBuffer));
2236	draw_list->_IdxWritePtr = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size;
2237
2238	// If current command is used with different settings we need to add a new command
2239	ImDrawCmd* curr_cmd = (draw_list->CmdBuffer.Size == 0) ? NULL : &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
2240	if (curr_cmd == NULL)
2241	draw_list->AddDrawCmd();
2242	else if (curr_cmd->ElemCount == 0)
2243	ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TexRef, VtxOffset
2244	else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
2245	draw_list->AddDrawCmd();
2246	}
2247
2248	//-----------------------------------------------------------------------------
2249	// [SECTION] ImDrawData
2250	//-----------------------------------------------------------------------------
2251
2252	void ImDrawData::Clear()
2253	{
2254	Valid = false;
2255	CmdListsCount = TotalIdxCount = TotalVtxCount = 0;
2256	CmdLists.resize(new_size: 0); // The ImDrawList are NOT owned by ImDrawData but e.g. by ImGuiContext, so we don't clear them.
2257	DisplayPos = DisplaySize = FramebufferScale = ImVec2(0.0f, 0.0f);
2258	OwnerViewport = NULL;
2259	Textures = NULL;
2260	}
2261
2262	// Important: 'out_list' is generally going to be draw_data->CmdLists, but may be another temporary list
2263	// as long at it is expected that the result will be later merged into draw_data->CmdLists[].
2264	void ImGui::AddDrawListToDrawDataEx(ImDrawData* draw_data, ImVector<ImDrawList*>* out_list, ImDrawList* draw_list)
2265	{
2266	if (draw_list->CmdBuffer.Size == 0)
2267	return;
2268	if (draw_list->CmdBuffer.Size == 1 && draw_list->CmdBuffer[0].ElemCount == 0 && draw_list->CmdBuffer[0].UserCallback == NULL)
2269	return;
2270
2271	// Draw list sanity check. Detect mismatch between PrimReserve() calls and incrementing _VtxCurrentIdx, _VtxWritePtr etc.
2272	// May trigger for you if you are using PrimXXX functions incorrectly.
2273	IM_ASSERT(draw_list->VtxBuffer.Size == 0 || draw_list->_VtxWritePtr == draw_list->VtxBuffer.Data + draw_list->VtxBuffer.Size);
2274	IM_ASSERT(draw_list->IdxBuffer.Size == 0 || draw_list->_IdxWritePtr == draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size);
2275	if (!(draw_list->Flags & ImDrawListFlags_AllowVtxOffset))
2276	IM_ASSERT((int)draw_list->_VtxCurrentIdx == draw_list->VtxBuffer.Size);
2277
2278	// Check that draw_list doesn't use more vertices than indexable (default ImDrawIdx = unsigned short = 2 bytes = 64K vertices per ImDrawList = per window)
2279	// If this assert triggers because you are drawing lots of stuff manually:
2280	// - First, make sure you are coarse clipping yourself and not trying to draw many things outside visible bounds.
2281	// Be mindful that the lower-level ImDrawList API doesn't filter vertices. Use the Metrics/Debugger window to inspect draw list contents.
2282	// - If you want large meshes with more than 64K vertices, you can either:
2283	// (A) Handle the ImDrawCmd::VtxOffset value in your renderer backend, and set 'io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset'.
2284	// Most example backends already support this from 1.71. Pre-1.71 backends won't.
2285	// Some graphics API such as GL ES 1/2 don't have a way to offset the starting vertex so it is not supported for them.
2286	// (B) Or handle 32-bit indices in your renderer backend, and uncomment '#define ImDrawIdx unsigned int' line in imconfig.h.
2287	// Most example backends already support this. For example, the OpenGL example code detect index size at compile-time:
2288	// glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer_offset);
2289	// Your own engine or render API may use different parameters or function calls to specify index sizes.
2290	// 2 and 4 bytes indices are generally supported by most graphics API.
2291	// - If for some reason neither of those solutions works for you, a workaround is to call BeginChild()/EndChild() before reaching
2292	// the 64K limit to split your draw commands in multiple draw lists.
2293	if (sizeof(ImDrawIdx) == 2)
2294	IM_ASSERT(draw_list->_VtxCurrentIdx < (1 << 16) && "Too many vertices in ImDrawList using 16-bit indices. Read comment above");
2295
2296	// Resolve callback data pointers
2297	if (draw_list->_CallbacksDataBuf.Size > 0)
2298	for (ImDrawCmd& cmd : draw_list->CmdBuffer)
2299	if (cmd.UserCallback != NULL && cmd.UserCallbackDataOffset != -1 && cmd.UserCallbackDataSize > 0)
2300	cmd.UserCallbackData = draw_list->_CallbacksDataBuf.Data + cmd.UserCallbackDataOffset;
2301
2302	// Add to output list + records state in ImDrawData
2303	out_list->push_back(v: draw_list);
2304	draw_data->CmdListsCount++;
2305	draw_data->TotalVtxCount += draw_list->VtxBuffer.Size;
2306	draw_data->TotalIdxCount += draw_list->IdxBuffer.Size;
2307	}
2308
2309	void ImDrawData::AddDrawList(ImDrawList* draw_list)
2310	{
2311	IM_ASSERT(CmdLists.Size == CmdListsCount);
2312	draw_list->_PopUnusedDrawCmd();
2313	ImGui::AddDrawListToDrawDataEx(draw_data: this, out_list: &CmdLists, draw_list);
2314	}
2315
2316	// For backward compatibility: convert all buffers from indexed to de-indexed, in case you cannot render indexed. Note: this is slow and most likely a waste of resources. Always prefer indexed rendering!
2317	void ImDrawData::DeIndexAllBuffers()
2318	{
2319	ImVector<ImDrawVert> new_vtx_buffer;
2320	TotalVtxCount = TotalIdxCount = 0;
2321	for (ImDrawList* draw_list : CmdLists)
2322	{
2323	if (draw_list->IdxBuffer.empty())
2324	continue;
2325	new_vtx_buffer.resize(new_size: draw_list->IdxBuffer.Size);
2326	for (int j = 0; j < draw_list->IdxBuffer.Size; j++)
2327	new_vtx_buffer[j] = draw_list->VtxBuffer[draw_list->IdxBuffer[j]];
2328	draw_list->VtxBuffer.swap(rhs&: new_vtx_buffer);
2329	draw_list->IdxBuffer.resize(new_size: 0);
2330	TotalVtxCount += draw_list->VtxBuffer.Size;
2331	}
2332	}
2333
2334	// Helper to scale the ClipRect field of each ImDrawCmd.
2335	// Use if your final output buffer is at a different scale than draw_data->DisplaySize,
2336	// or if there is a difference between your window resolution and framebuffer resolution.
2337	void ImDrawData::ScaleClipRects(const ImVec2& fb_scale)
2338	{
2339	for (ImDrawList* draw_list : CmdLists)
2340	for (ImDrawCmd& cmd : draw_list->CmdBuffer)
2341	cmd.ClipRect = ImVec4(cmd.ClipRect.x * fb_scale.x, cmd.ClipRect.y * fb_scale.y, cmd.ClipRect.z * fb_scale.x, cmd.ClipRect.w * fb_scale.y);
2342	}
2343
2344	//-----------------------------------------------------------------------------
2345	// [SECTION] Helpers ShadeVertsXXX functions
2346	//-----------------------------------------------------------------------------
2347
2348	// Generic linear color gradient, write to RGB fields, leave A untouched.
2349	void ImGui::ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1)
2350	{
2351	ImVec2 gradient_extent = gradient_p1 - gradient_p0;
2352	float gradient_inv_length2 = 1.0f / ImLengthSqr(lhs: gradient_extent);
2353	ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
2354	ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
2355	const int col0_r = (int)(col0 >> IM_COL32_R_SHIFT) & 0xFF;
2356	const int col0_g = (int)(col0 >> IM_COL32_G_SHIFT) & 0xFF;
2357	const int col0_b = (int)(col0 >> IM_COL32_B_SHIFT) & 0xFF;
2358	const int col_delta_r = ((int)(col1 >> IM_COL32_R_SHIFT) & 0xFF) - col0_r;
2359	const int col_delta_g = ((int)(col1 >> IM_COL32_G_SHIFT) & 0xFF) - col0_g;
2360	const int col_delta_b = ((int)(col1 >> IM_COL32_B_SHIFT) & 0xFF) - col0_b;
2361	for (ImDrawVert* vert = vert_start; vert < vert_end; vert++)
2362	{
2363	float d = ImDot(a: vert->pos - gradient_p0, b: gradient_extent);
2364	float t = ImClamp(v: d * gradient_inv_length2, mn: 0.0f, mx: 1.0f);
2365	int r = (int)(col0_r + col_delta_r * t);
2366	int g = (int)(col0_g + col_delta_g * t);
2367	int b = (int)(col0_b + col_delta_b * t);
2368	vert->col = (r << IM_COL32_R_SHIFT) | (g << IM_COL32_G_SHIFT) | (b << IM_COL32_B_SHIFT) | (vert->col & IM_COL32_A_MASK);
2369	}
2370	}
2371
2372	// Distribute UV over (a, b) rectangle
2373	void ImGui::ShadeVertsLinearUV(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, bool clamp)
2374	{
2375	const ImVec2 size = b - a;
2376	const ImVec2 uv_size = uv_b - uv_a;
2377	const ImVec2 scale = ImVec2(
2378	size.x != 0.0f ? (uv_size.x / size.x) : 0.0f,
2379	size.y != 0.0f ? (uv_size.y / size.y) : 0.0f);
2380
2381	ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
2382	ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
2383	if (clamp)
2384	{
2385	const ImVec2 min = ImMin(lhs: uv_a, rhs: uv_b);
2386	const ImVec2 max = ImMax(lhs: uv_a, rhs: uv_b);
2387	for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
2388	vertex->uv = ImClamp(v: uv_a + ImMul(lhs: ImVec2(vertex->pos.x, vertex->pos.y) - a, rhs: scale), mn: min, mx: max);
2389	}
2390	else
2391	{
2392	for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
2393	vertex->uv = uv_a + ImMul(lhs: ImVec2(vertex->pos.x, vertex->pos.y) - a, rhs: scale);
2394	}
2395	}
2396
2397	void ImGui::ShadeVertsTransformPos(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, const ImVec2& pivot_in, float cos_a, float sin_a, const ImVec2& pivot_out)
2398	{
2399	ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
2400	ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
2401	for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
2402	vertex->pos = ImRotate(v: vertex->pos- pivot_in, cos_a, sin_a) + pivot_out;
2403	}
2404
2405	//-----------------------------------------------------------------------------
2406	// [SECTION] ImFontConfig
2407	//-----------------------------------------------------------------------------
2408
2409	// FIXME-NEWATLAS: Oversample specification could be more dynamic. For now, favoring automatic selection.
2410	ImFontConfig::ImFontConfig()
2411	{
2412	memset(s: this, c: 0, n: sizeof(*this));
2413	FontDataOwnedByAtlas = true;
2414	OversampleH = 0; // Auto == 1 or 2 depending on size
2415	OversampleV = 0; // Auto == 1
2416	GlyphMaxAdvanceX = FLT_MAX;
2417	RasterizerMultiply = 1.0f;
2418	RasterizerDensity = 1.0f;
2419	EllipsisChar = 0;
2420	}
2421
2422	//-----------------------------------------------------------------------------
2423	// [SECTION] ImTextureData
2424	//-----------------------------------------------------------------------------
2425	// - ImTextureData::Create()
2426	// - ImTextureData::DestroyPixels()
2427	//-----------------------------------------------------------------------------
2428
2429	int ImTextureDataGetFormatBytesPerPixel(ImTextureFormat format)
2430	{
2431	switch (format)
2432	{
2433	case ImTextureFormat_Alpha8: return 1;
2434	case ImTextureFormat_RGBA32: return 4;
2435	}
2436	IM_ASSERT(0);
2437	return 0;
2438	}
2439
2440	const char* ImTextureDataGetStatusName(ImTextureStatus status)
2441	{
2442	switch (status)
2443	{
2444	case ImTextureStatus_OK: return "OK";
2445	case ImTextureStatus_Destroyed: return "Destroyed";
2446	case ImTextureStatus_WantCreate: return "WantCreate";
2447	case ImTextureStatus_WantUpdates: return "WantUpdates";
2448	case ImTextureStatus_WantDestroy: return "WantDestroy";
2449	}
2450	return "N/A";
2451	}
2452
2453	const char* ImTextureDataGetFormatName(ImTextureFormat format)
2454	{
2455	switch (format)
2456	{
2457	case ImTextureFormat_Alpha8: return "Alpha8";
2458	case ImTextureFormat_RGBA32: return "RGBA32";
2459	}
2460	return "N/A";
2461	}
2462
2463	void ImTextureData::Create(ImTextureFormat format, int w, int h)
2464	{
2465	IM_ASSERT(Status == ImTextureStatus_Destroyed);
2466	DestroyPixels();
2467	Format = format;
2468	Status = ImTextureStatus_WantCreate;
2469	Width = w;
2470	Height = h;
2471	BytesPerPixel = ImTextureDataGetFormatBytesPerPixel(format);
2472	UseColors = false;
2473	Pixels = (unsigned char*)IM_ALLOC(Width * Height * BytesPerPixel);
2474	IM_ASSERT(Pixels != NULL);
2475	memset(s: Pixels, c: 0, n: Width * Height * BytesPerPixel);
2476	UsedRect.x = UsedRect.y = UsedRect.w = UsedRect.h = 0;
2477	UpdateRect.x = UpdateRect.y = (unsigned short)~0;
2478	UpdateRect.w = UpdateRect.h = 0;
2479	}
2480
2481	void ImTextureData::DestroyPixels()
2482	{
2483	if (Pixels)
2484	IM_FREE(Pixels);
2485	Pixels = NULL;
2486	UseColors = false;
2487	}
2488
2489	//-----------------------------------------------------------------------------
2490	// [SECTION] ImFontAtlas, ImFontAtlasBuilder
2491	//-----------------------------------------------------------------------------
2492	// - Default texture data encoded in ASCII
2493	// - ImFontAtlas()
2494	// - ImFontAtlas::Clear()
2495	// - ImFontAtlas::CompactCache()
2496	// - ImFontAtlas::ClearInputData()
2497	// - ImFontAtlas::ClearTexData()
2498	// - ImFontAtlas::ClearFonts()
2499	//-----------------------------------------------------------------------------
2500	// - ImFontAtlasUpdateNewFrame()
2501	// - ImFontAtlasTextureBlockConvert()
2502	// - ImFontAtlasTextureBlockPostProcess()
2503	// - ImFontAtlasTextureBlockPostProcessMultiply()
2504	// - ImFontAtlasTextureBlockFill()
2505	// - ImFontAtlasTextureBlockCopy()
2506	// - ImFontAtlasTextureBlockQueueUpload()
2507	//-----------------------------------------------------------------------------
2508	// - ImFontAtlas::GetTexDataAsAlpha8() [legacy]
2509	// - ImFontAtlas::GetTexDataAsRGBA32() [legacy]
2510	// - ImFontAtlas::Build() [legacy]
2511	//-----------------------------------------------------------------------------
2512	// - ImFontAtlas::AddFont()
2513	// - ImFontAtlas::AddFontDefault()
2514	// - ImFontAtlas::AddFontFromFileTTF()
2515	// - ImFontAtlas::AddFontFromMemoryTTF()
2516	// - ImFontAtlas::AddFontFromMemoryCompressedTTF()
2517	// - ImFontAtlas::AddFontFromMemoryCompressedBase85TTF()
2518	// - ImFontAtlas::RemoveFont()
2519	// - ImFontAtlasBuildNotifySetFont()
2520	//-----------------------------------------------------------------------------
2521	// - ImFontAtlas::AddCustomRect()
2522	// - ImFontAtlas::RemoveCustomRect()
2523	// - ImFontAtlas::GetCustomRect()
2524	// - ImFontAtlas::AddCustomRectFontGlyph() [legacy]
2525	// - ImFontAtlas::AddCustomRectFontGlyphForSize() [legacy]
2526	// - ImFontAtlasGetMouseCursorTexData()
2527	//-----------------------------------------------------------------------------
2528	// - ImFontAtlasBuildMain()
2529	// - ImFontAtlasBuildSetupFontLoader()
2530	// - ImFontAtlasBuildPreloadAllGlyphRanges()
2531	// - ImFontAtlasBuildUpdatePointers()
2532	// - ImFontAtlasBuildRenderBitmapFromString()
2533	// - ImFontAtlasBuildUpdateBasicTexData()
2534	// - ImFontAtlasBuildUpdateLinesTexData()
2535	// - ImFontAtlasBuildAddFont()
2536	// - ImFontAtlasBuildSetupFontBakedEllipsis()
2537	// - ImFontAtlasBuildSetupFontBakedBlanks()
2538	// - ImFontAtlasBuildSetupFontBakedFallback()
2539	// - ImFontAtlasBuildSetupFontSpecialGlyphs()
2540	// - ImFontAtlasBuildDiscardBakes()
2541	// - ImFontAtlasBuildDiscardFontBakedGlyph()
2542	// - ImFontAtlasBuildDiscardFontBaked()
2543	// - ImFontAtlasBuildDiscardFontBakes()
2544	//-----------------------------------------------------------------------------
2545	// - ImFontAtlasAddDrawListSharedData()
2546	// - ImFontAtlasRemoveDrawListSharedData()
2547	// - ImFontAtlasUpdateDrawListsTextures()
2548	// - ImFontAtlasUpdateDrawListsSharedData()
2549	//-----------------------------------------------------------------------------
2550	// - ImFontAtlasBuildSetTexture()
2551	// - ImFontAtlasBuildAddTexture()
2552	// - ImFontAtlasBuildMakeSpace()
2553	// - ImFontAtlasBuildRepackTexture()
2554	// - ImFontAtlasBuildGrowTexture()
2555	// - ImFontAtlasBuildRepackOrGrowTexture()
2556	// - ImFontAtlasBuildGetTextureSizeEstimate()
2557	// - ImFontAtlasBuildCompactTexture()
2558	// - ImFontAtlasBuildInit()
2559	// - ImFontAtlasBuildDestroy()
2560	//-----------------------------------------------------------------------------
2561	// - ImFontAtlasPackInit()
2562	// - ImFontAtlasPackAllocRectEntry()
2563	// - ImFontAtlasPackReuseRectEntry()
2564	// - ImFontAtlasPackDiscardRect()
2565	// - ImFontAtlasPackAddRect()
2566	// - ImFontAtlasPackGetRect()
2567	//-----------------------------------------------------------------------------
2568	// - ImFontBaked_BuildGrowIndex()
2569	// - ImFontBaked_BuildLoadGlyph()
2570	// - ImFontBaked_BuildLoadGlyphAdvanceX()
2571	// - ImFontAtlasDebugLogTextureRequests()
2572	//-----------------------------------------------------------------------------
2573	// - ImFontAtlasGetFontLoaderForStbTruetype()
2574	//-----------------------------------------------------------------------------
2575
2576	// A work of art lies ahead! (. = white layer, X = black layer, others are blank)
2577	// The 2x2 white texels on the top left are the ones we'll use everywhere in Dear ImGui to render filled shapes.
2578	// (This is used when io.MouseDrawCursor = true)
2579	const int FONT_ATLAS_DEFAULT_TEX_DATA_W = 122; // Actual texture will be 2 times that + 1 spacing.
2580	const int FONT_ATLAS_DEFAULT_TEX_DATA_H = 27;
2581	static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] =
2582	{
2583	"..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX- XX - XX XX "
2584	"..- -X.....X- X.X - X.X -X.....X - X.....X- X..X -X..X X..X"
2585	"--- -XXX.XXX- X...X - X...X -X....X - X....X- X..X -X...X X...X"
2586	"X - X.X - X.....X - X.....X -X...X - X...X- X..X - X...X X...X "
2587	"XX - X.X -X.......X- X.......X -X..X.X - X.X..X- X..X - X...X...X "
2588	"X.X - X.X -XXXX.XXXX- XXXX.XXXX -X.X X.X - X.X X.X- X..XXX - X.....X "
2589	"X..X - X.X - X.X - X.X -XX X.X - X.X XX- X..X..XXX - X...X "
2590	"X...X - X.X - X.X - XX X.X XX - X.X - X.X - X..X..X..XX - X.X "
2591	"X....X - X.X - X.X - X.X X.X X.X - X.X - X.X - X..X..X..X.X - X...X "
2592	"X.....X - X.X - X.X - X..X X.X X..X - X.X - X.X -XXX X..X..X..X..X- X.....X "
2593	"X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-XX X.X -X..XX........X..X- X...X...X "
2594	"X.......X - X.X - X.X -X.....................X- X.X X.X-X.X X.X -X...X...........X- X...X X...X "
2595	"X........X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X..X-X..X.X - X..............X-X...X X...X"
2596	"X.........X -XXX.XXX- X.X - X..X X.X X..X - X...X-X...X - X.............X-X..X X..X"
2597	"X..........X-X.....X- X.X - X.X X.X X.X - X....X-X....X - X.............X- XX XX "
2598	"X......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X - X............X--------------"
2599	"X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX - X...........X - "
2600	"X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------- X..........X - "
2601	"X.X X..X - -X.......X- X.......X - XX XX - - X..........X - "
2602	"XX X..X - - X.....X - X.....X - X.X X.X - - X........X - "
2603	" X..X - - X...X - X...X - X..X X..X - - X........X - "
2604	" XX - - X.X - X.X - X...XXXXXXXXXXXXX...X - - XXXXXXXXXX - "
2605	"------------- - X - X -X.....................X- ------------------- "
2606	" ----------------------------------- X...XXXXXXXXXXXXX...X - "
2607	" - X..X X..X - "
2608	" - X.X X.X - "
2609	" - XX XX - "
2610	};
2611
2612	static const ImVec2 FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[ImGuiMouseCursor_COUNT][3] =
2613	{
2614	// Pos ........ Size ......... Offset ......
2615	{ ImVec2( 0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow
2616	{ ImVec2(13,0), ImVec2( 7,16), ImVec2( 1, 8) }, // ImGuiMouseCursor_TextInput
2617	{ ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_ResizeAll
2618	{ ImVec2(21,0), ImVec2( 9,23), ImVec2( 4,11) }, // ImGuiMouseCursor_ResizeNS
2619	{ ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 4) }, // ImGuiMouseCursor_ResizeEW
2620	{ ImVec2(73,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNESW
2621	{ ImVec2(55,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNWSE
2622	{ ImVec2(91,0), ImVec2(17,22), ImVec2( 5, 0) }, // ImGuiMouseCursor_Hand
2623	{ ImVec2(0,3), ImVec2(12,19), ImVec2(0, 0) }, // ImGuiMouseCursor_Wait // Arrow + custom code in ImGui::RenderMouseCursor()
2624	{ ImVec2(0,3), ImVec2(12,19), ImVec2(0, 0) }, // ImGuiMouseCursor_Progress // Arrow + custom code in ImGui::RenderMouseCursor()
2625	{ ImVec2(109,0),ImVec2(13,15), ImVec2( 6, 7) }, // ImGuiMouseCursor_NotAllowed
2626	};
2627
2628	#define IM_FONTGLYPH_INDEX_UNUSED ((ImU16)-1) // 0xFFFF
2629	#define IM_FONTGLYPH_INDEX_NOT_FOUND ((ImU16)-2) // 0xFFFE
2630
2631	ImFontAtlas::ImFontAtlas()
2632	{
2633	memset(s: this, c: 0, n: sizeof(*this));
2634	TexDesiredFormat = ImTextureFormat_RGBA32;
2635	TexGlyphPadding = 1;
2636	TexMinWidth = 512;
2637	TexMinHeight = 128;
2638	TexMaxWidth = 8192;
2639	TexMaxHeight = 8192;
2640	TexRef._TexID = ImTextureID_Invalid;
2641	RendererHasTextures = false; // Assumed false by default, as apps can call e.g Atlas::Build() after backend init and before ImGui can update.
2642	TexNextUniqueID = 1;
2643	FontNextUniqueID = 1;
2644	Builder = NULL;
2645	}
2646
2647	ImFontAtlas::~ImFontAtlas()
2648	{
2649	IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas!");
2650	RendererHasTextures = false; // Full Clear() is supported, but ClearTexData() only isn't.
2651	ClearFonts();
2652	ClearTexData();
2653	TexList.clear_delete();
2654	TexData = NULL;
2655	}
2656
2657	void ImFontAtlas::Clear()
2658	{
2659	bool backup_renderer_has_textures = RendererHasTextures;
2660	RendererHasTextures = false; // Full Clear() is supported, but ClearTexData() only isn't.
2661	ClearFonts();
2662	ClearTexData();
2663	RendererHasTextures = backup_renderer_has_textures;
2664	}
2665
2666	void ImFontAtlas::CompactCache()
2667	{
2668	ImFontAtlasTextureCompact(atlas: this);
2669	}
2670
2671	void ImFontAtlas::SetFontLoader(const ImFontLoader* font_loader)
2672	{
2673	ImFontAtlasBuildSetupFontLoader(atlas: this, font_loader);
2674	}
2675
2676	void ImFontAtlas::ClearInputData()
2677	{
2678	IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas!");
2679
2680	for (ImFont* font : Fonts)
2681	ImFontAtlasFontDestroyOutput(atlas: this, font);
2682	for (ImFontConfig& font_cfg : Sources)
2683	ImFontAtlasFontDestroySourceData(atlas: this, src: &font_cfg);
2684	for (ImFont* font : Fonts)
2685	{
2686	// When clearing this we lose access to the font name and other information used to build the font.
2687	font->Sources.clear();
2688	font->Flags |= ImFontFlags_NoLoadGlyphs;
2689	}
2690	Sources.clear();
2691	}
2692
2693	// Clear CPU-side copy of the texture data.
2694	void ImFontAtlas::ClearTexData()
2695	{
2696	IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas!");
2697	IM_ASSERT(RendererHasTextures == false && "Not supported for dynamic atlases, but you may call Clear().");
2698	for (ImTextureData* tex : TexList)
2699	tex->DestroyPixels();
2700	//Locked = true; // Hoped to be able to lock this down but some reload patterns may not be happy with it.
2701	}
2702
2703	void ImFontAtlas::ClearFonts()
2704	{
2705	// FIXME-NEWATLAS: Illegal to remove currently bound font.
2706	IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas!");
2707	ImFontAtlasBuildDestroy(atlas: this);
2708	ClearInputData();
2709	Fonts.clear_delete();
2710	TexIsBuilt = false;
2711	for (ImDrawListSharedData* shared_data : DrawListSharedDatas)
2712	if (shared_data->FontAtlas == this)
2713	{
2714	shared_data->Font = NULL;
2715	shared_data->FontScale = shared_data->FontSize = 0.0f;
2716	}
2717	}
2718
2719	static void ImFontAtlasBuildUpdateRendererHasTexturesFromContext(ImFontAtlas* atlas)
2720	{
2721	// [LEGACY] Copy back the ImGuiBackendFlags_RendererHasTextures flag from ImGui context.
2722	// - This is the 1% exceptional case where that dependency if useful, to bypass an issue where otherwise at the
2723	// time of an early call to Build(), it would be impossible for us to tell if the backend supports texture update.
2724	// - Without this hack, we would have quite a pitfall as many legacy codebases have an early call to Build().
2725	// Whereas conversely, the portion of people using ImDrawList without ImGui is expected to be pathologically rare.
2726	for (ImDrawListSharedData* shared_data : atlas->DrawListSharedDatas)
2727	if (ImGuiContext* imgui_ctx = shared_data->Context)
2728	{
2729	atlas->RendererHasTextures = (imgui_ctx->IO.BackendFlags & ImGuiBackendFlags_RendererHasTextures) != 0;
2730	break;
2731	}
2732	}
2733
2734	// Called by NewFrame() for atlases owned by a context.
2735	// If you manually manage font atlases, you'll need to call this yourself.
2736	// - 'frame_count' needs to be provided because we can gc/prioritize baked fonts based on their age.
2737	// - 'frame_count' may not match those of all imgui contexts using this atlas, as contexts may be updated as different frequencies. But generally you can use ImGui::GetFrameCount() on one of your context.
2738	void ImFontAtlasUpdateNewFrame(ImFontAtlas* atlas, int frame_count, bool renderer_has_textures)
2739	{
2740	IM_ASSERT(atlas->Builder == NULL || atlas->Builder->FrameCount < frame_count); // Protection against being called twice.
2741	atlas->RendererHasTextures = renderer_has_textures;
2742
2743	// Check that font atlas was built or backend support texture reload in which case we can build now
2744	if (atlas->RendererHasTextures)
2745	{
2746	atlas->TexIsBuilt = true;
2747	if (atlas->Builder == NULL) // This will only happen if fonts were not already loaded.
2748	ImFontAtlasBuildMain(atlas);
2749	}
2750	// Legacy backend
2751	if (!atlas->RendererHasTextures)
2752	IM_ASSERT_USER_ERROR(atlas->TexIsBuilt, "Backend does not support ImGuiBackendFlags_RendererHasTextures, and font atlas is not built! Update backend OR make sure you called ImGui_ImplXXXX_NewFrame() function for renderer backend, which should call io.Fonts->GetTexDataAsRGBA32() / GetTexDataAsAlpha8().");
2753	if (atlas->TexIsBuilt && atlas->Builder->PreloadedAllGlyphsRanges)
2754	IM_ASSERT_USER_ERROR(atlas->RendererHasTextures == false, "Called ImFontAtlas::Build() before ImGuiBackendFlags_RendererHasTextures got set! With new backends: you don't need to call Build().");
2755
2756	// Clear BakedCurrent cache, this is important because it ensure the uncached path gets taken once.
2757	// We also rely on ImFontBaked* pointers never crossing frames.
2758	ImFontAtlasBuilder* builder = atlas->Builder;
2759	builder->FrameCount = frame_count;
2760	for (ImFont* font : atlas->Fonts)
2761	font->LastBaked = NULL;
2762
2763	// Garbage collect BakedPool
2764	if (builder->BakedDiscardedCount > 0)
2765	{
2766	int dst_n = 0, src_n = 0;
2767	for (; src_n < builder->BakedPool.Size; src_n++)
2768	{
2769	ImFontBaked* p_src = &builder->BakedPool[src_n];
2770	if (p_src->WantDestroy)
2771	continue;
2772	ImFontBaked* p_dst = &builder->BakedPool[dst_n++];
2773	if (p_dst == p_src)
2774	continue;
2775	memcpy(dest: p_dst, src: p_src, n: sizeof(ImFontBaked));
2776	builder->BakedMap.SetVoidPtr(key: p_dst->BakedId, val: p_dst);
2777	}
2778	IM_ASSERT(dst_n + builder->BakedDiscardedCount == src_n);
2779	builder->BakedPool.Size -= builder->BakedDiscardedCount;
2780	builder->BakedDiscardedCount = 0;
2781	}
2782
2783	// Update texture status
2784	for (int tex_n = 0; tex_n < atlas->TexList.Size; tex_n++)
2785	{
2786	ImTextureData* tex = atlas->TexList[tex_n];
2787	bool remove_from_list = false;
2788	if (tex->Status == ImTextureStatus_OK)
2789	{
2790	tex->Updates.resize(new_size: 0);
2791	tex->UpdateRect.x = tex->UpdateRect.y = (unsigned short)~0;
2792	tex->UpdateRect.w = tex->UpdateRect.h = 0;
2793	}
2794	if (tex->Status == ImTextureStatus_WantCreate && atlas->RendererHasTextures)
2795	IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == NULL && "Backend set texture's TexID/BackendUserData but did not update Status to OK.");
2796
2797	if (tex->Status == ImTextureStatus_Destroyed)
2798	{
2799	IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == NULL && "Backend set texture Status to Destroyed but did not clear TexID/BackendUserData!");
2800	if (tex->WantDestroyNextFrame)
2801	remove_from_list = true; // Destroy was scheduled by us
2802	else
2803	tex->Status = ImTextureStatus_WantCreate; // Destroy was done was backend (e.g. freed resources mid-run)
2804	}
2805	else if (tex->WantDestroyNextFrame && tex->Status != ImTextureStatus_WantDestroy)
2806	{
2807	// Request destroy.
2808	// - Keep bool to true in order to differentiate a planned destroy vs a destroy decided by the backend.
2809	// - We don't destroy pixels right away, as backend may have an in-flight copy from RAM.
2810	IM_ASSERT(tex->Status == ImTextureStatus_OK || tex->Status == ImTextureStatus_WantCreate || tex->Status == ImTextureStatus_WantUpdates);
2811	tex->Status = ImTextureStatus_WantDestroy;
2812	}
2813
2814	// The backend may need defer destroying by a few frames, to handle texture used by previous in-flight rendering.
2815	// We allow the texture staying in _WantDestroy state and increment a counter which the backend can use to take its decision.
2816	if (tex->Status == ImTextureStatus_WantDestroy)
2817	tex->UnusedFrames++;
2818
2819	// If a texture has never reached the backend, they don't need to know about it.
2820	if (tex->Status == ImTextureStatus_WantDestroy && tex->TexID == ImTextureID_Invalid && tex->BackendUserData == NULL)
2821	remove_from_list = true;
2822
2823	// Destroy and remove
2824	if (remove_from_list)
2825	{
2826	tex->DestroyPixels();
2827	IM_DELETE(p: tex);
2828	atlas->TexList.erase(it: atlas->TexList.begin() + tex_n);
2829	tex_n--;
2830	}
2831	}
2832	}
2833
2834	void ImFontAtlasTextureBlockConvert(const unsigned char* src_pixels, ImTextureFormat src_fmt, int src_pitch, unsigned char* dst_pixels, ImTextureFormat dst_fmt, int dst_pitch, int w, int h)
2835	{
2836	IM_ASSERT(src_pixels != NULL && dst_pixels != NULL);
2837	if (src_fmt == dst_fmt)
2838	{
2839	int line_sz = w * ImTextureDataGetFormatBytesPerPixel(format: src_fmt);
2840	for (int ny = h; ny > 0; ny--, src_pixels += src_pitch, dst_pixels += dst_pitch)
2841	memcpy(dest: dst_pixels, src: src_pixels, n: line_sz);
2842	}
2843	else if (src_fmt == ImTextureFormat_Alpha8 && dst_fmt == ImTextureFormat_RGBA32)
2844	{
2845	for (int ny = h; ny > 0; ny--, src_pixels += src_pitch, dst_pixels += dst_pitch)
2846	{
2847	const ImU8* src_p = (const ImU8*)src_pixels;
2848	ImU32* dst_p = (ImU32*)(void*)dst_pixels;
2849	for (int nx = w; nx > 0; nx--)
2850	*dst_p++ = IM_COL32(255, 255, 255, (unsigned int)(*src_p++));
2851	}
2852	}
2853	else if (src_fmt == ImTextureFormat_RGBA32 && dst_fmt == ImTextureFormat_Alpha8)
2854	{
2855	for (int ny = h; ny > 0; ny--, src_pixels += src_pitch, dst_pixels += dst_pitch)
2856	{
2857	const ImU32* src_p = (const ImU32*)(void*)src_pixels;
2858	ImU8* dst_p = (ImU8*)dst_pixels;
2859	for (int nx = w; nx > 0; nx--)
2860	*dst_p++ = ((*src_p++) >> IM_COL32_A_SHIFT) & 0xFF;
2861	}
2862	}
2863	else
2864	{
2865	IM_ASSERT(0);
2866	}
2867	}
2868
2869	// Source buffer may be written to (used for in-place mods).
2870	// Post-process hooks may eventually be added here.
2871	void ImFontAtlasTextureBlockPostProcess(ImFontAtlasPostProcessData* data)
2872	{
2873	// Multiply operator (legacy)
2874	if (data->FontSrc->RasterizerMultiply != 1.0f)
2875	ImFontAtlasTextureBlockPostProcessMultiply(data, multiply_factor: data->FontSrc->RasterizerMultiply);
2876	}
2877
2878	void ImFontAtlasTextureBlockPostProcessMultiply(ImFontAtlasPostProcessData* data, float multiply_factor)
2879	{
2880	unsigned char* pixels = (unsigned char*)data->Pixels;
2881	int pitch = data->Pitch;
2882	if (data->Format == ImTextureFormat_Alpha8)
2883	{
2884	for (int ny = data->Height; ny > 0; ny--, pixels += pitch)
2885	{
2886	ImU8* p = (ImU8*)pixels;
2887	for (int nx = data->Width; nx > 0; nx--, p++)
2888	{
2889	unsigned int v = ImMin(lhs: (unsigned int)(*p * multiply_factor), rhs: (unsigned int)255);
2890	*p = (unsigned char)v;
2891	}
2892	}
2893	}
2894	else if (data->Format == ImTextureFormat_RGBA32) //-V547
2895	{
2896	for (int ny = data->Height; ny > 0; ny--, pixels += pitch)
2897	{
2898	ImU32* p = (ImU32*)(void*)pixels;
2899	for (int nx = data->Width; nx > 0; nx--, p++)
2900	{
2901	unsigned int a = ImMin(lhs: (unsigned int)(((*p >> IM_COL32_A_SHIFT) & 0xFF) * multiply_factor), rhs: (unsigned int)255);
2902	*p = IM_COL32((*p >> IM_COL32_R_SHIFT) & 0xFF, (*p >> IM_COL32_G_SHIFT) & 0xFF, (*p >> IM_COL32_B_SHIFT) & 0xFF, a);
2903	}
2904	}
2905	}
2906	else
2907	{
2908	IM_ASSERT(0);
2909	}
2910	}
2911
2912	// Fill with single color. We don't use this directly but it is convenient for anyone working on uploading custom rects.
2913	void ImFontAtlasTextureBlockFill(ImTextureData* dst_tex, int dst_x, int dst_y, int w, int h, ImU32 col)
2914	{
2915	if (dst_tex->Format == ImTextureFormat_Alpha8)
2916	{
2917	ImU8 col_a = (col >> IM_COL32_A_SHIFT) & 0xFF;
2918	for (int y = 0; y < h; y++)
2919	memset(s: (ImU8*)dst_tex->GetPixelsAt(x: dst_x, y: dst_y + y), c: col_a, n: w);
2920	}
2921	else
2922	{
2923	for (int y = 0; y < h; y++)
2924	{
2925	ImU32* p = (ImU32*)(void*)dst_tex->GetPixelsAt(x: dst_x, y: dst_y + y);
2926	for (int x = w; x > 0; x--, p++)
2927	*p = col;
2928	}
2929	}
2930	}
2931
2932	// Copy block from one texture to another
2933	void ImFontAtlasTextureBlockCopy(ImTextureData* src_tex, int src_x, int src_y, ImTextureData* dst_tex, int dst_x, int dst_y, int w, int h)
2934	{
2935	IM_ASSERT(src_tex->Pixels != NULL && dst_tex->Pixels != NULL);
2936	IM_ASSERT(src_tex->Format == dst_tex->Format);
2937	IM_ASSERT(src_x >= 0 && src_x + w <= src_tex->Width);
2938	IM_ASSERT(src_y >= 0 && src_y + h <= src_tex->Height);
2939	IM_ASSERT(dst_x >= 0 && dst_x + w <= dst_tex->Width);
2940	IM_ASSERT(dst_y >= 0 && dst_y + h <= dst_tex->Height);
2941	for (int y = 0; y < h; y++)
2942	memcpy(dest: dst_tex->GetPixelsAt(x: dst_x, y: dst_y + y), src: src_tex->GetPixelsAt(x: src_x, y: src_y + y), n: w * dst_tex->BytesPerPixel);
2943	}
2944
2945	// Queue texture block update for renderer backend
2946	void ImFontAtlasTextureBlockQueueUpload(ImFontAtlas* atlas, ImTextureData* tex, int x, int y, int w, int h)
2947	{
2948	IM_ASSERT(tex->Status != ImTextureStatus_WantDestroy && tex->Status != ImTextureStatus_Destroyed);
2949	IM_ASSERT(x >= 0 && x <= 0xFFFF && y >= 0 && y <= 0xFFFF && w >= 0 && x + w <= 0x10000 && h >= 0 && y + h <= 0x10000);
2950	IM_UNUSED(atlas);
2951
2952	ImTextureRect req = { .x: (unsigned short)x, .y: (unsigned short)y, .w: (unsigned short)w, .h: (unsigned short)h };
2953	int new_x1 = ImMax(lhs: tex->UpdateRect.w == 0 ? 0 : tex->UpdateRect.x + tex->UpdateRect.w, rhs: req.x + req.w);
2954	int new_y1 = ImMax(lhs: tex->UpdateRect.h == 0 ? 0 : tex->UpdateRect.y + tex->UpdateRect.h, rhs: req.y + req.h);
2955	tex->UpdateRect.x = ImMin(lhs: tex->UpdateRect.x, rhs: req.x);
2956	tex->UpdateRect.y = ImMin(lhs: tex->UpdateRect.y, rhs: req.y);
2957	tex->UpdateRect.w = (unsigned short)(new_x1 - tex->UpdateRect.x);
2958	tex->UpdateRect.h = (unsigned short)(new_y1 - tex->UpdateRect.y);
2959	tex->UsedRect.x = ImMin(lhs: tex->UsedRect.x, rhs: req.x);
2960	tex->UsedRect.y = ImMin(lhs: tex->UsedRect.y, rhs: req.y);
2961	tex->UsedRect.w = (unsigned short)(ImMax(lhs: tex->UsedRect.x + tex->UsedRect.w, rhs: req.x + req.w) - tex->UsedRect.x);
2962	tex->UsedRect.h = (unsigned short)(ImMax(lhs: tex->UsedRect.y + tex->UsedRect.h, rhs: req.y + req.h) - tex->UsedRect.y);
2963	atlas->TexIsBuilt = false;
2964
2965	// No need to queue if status is == ImTextureStatus_WantCreate
2966	if (tex->Status == ImTextureStatus_OK || tex->Status == ImTextureStatus_WantUpdates)
2967	{
2968	tex->Status = ImTextureStatus_WantUpdates;
2969	tex->Updates.push_back(v: req);
2970	}
2971	}
2972
2973	#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
2974	static void GetTexDataAsFormat(ImFontAtlas* atlas, ImTextureFormat format, unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
2975	{
2976	ImTextureData* tex = atlas->TexData;
2977	if (!atlas->TexIsBuilt || tex == NULL || tex->Pixels == NULL || atlas->TexDesiredFormat != format)
2978	{
2979	atlas->TexDesiredFormat = format;
2980	atlas->Build();
2981	tex = atlas->TexData;
2982	}
2983	if (out_pixels) { *out_pixels = (unsigned char*)tex->Pixels; };
2984	if (out_width) { *out_width = tex->Width; };
2985	if (out_height) { *out_height = tex->Height; };
2986	if (out_bytes_per_pixel) { *out_bytes_per_pixel = tex->BytesPerPixel; }
2987	}
2988
2989	void ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
2990	{
2991	GetTexDataAsFormat(atlas: this, format: ImTextureFormat_Alpha8, out_pixels, out_width, out_height, out_bytes_per_pixel);
2992	}
2993
2994	void ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
2995	{
2996	GetTexDataAsFormat(atlas: this, format: ImTextureFormat_RGBA32, out_pixels, out_width, out_height, out_bytes_per_pixel);
2997	}
2998
2999	bool ImFontAtlas::Build()
3000	{
3001	ImFontAtlasBuildMain(atlas: this);
3002	return true;
3003	}
3004	#endif // #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
3005
3006	ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg_in)
3007	{
3008	// Sanity Checks
3009	IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas!");
3010	IM_ASSERT((font_cfg_in->FontData != NULL && font_cfg_in->FontDataSize > 0) || (font_cfg_in->FontLoader != NULL));
3011	//IM_ASSERT(font_cfg_in->SizePixels > 0.0f && "Is ImFontConfig struct correctly initialized?");
3012	IM_ASSERT(font_cfg_in->RasterizerDensity > 0.0f && "Is ImFontConfig struct correctly initialized?");
3013	if (font_cfg_in->GlyphOffset.x != 0.0f || font_cfg_in->GlyphOffset.y != 0.0f || font_cfg_in->GlyphMinAdvanceX != 0.0f || font_cfg_in->GlyphMaxAdvanceX != FLT_MAX)
3014	IM_ASSERT(font_cfg_in->SizePixels != 0.0f && "Specifying glyph offset/advances requires a reference size to base it on.");
3015
3016	// Lazily create builder on the first call to AddFont
3017	if (Builder == NULL)
3018	ImFontAtlasBuildInit(atlas: this);
3019
3020	// Create new font
3021	ImFont* font;
3022	if (!font_cfg_in->MergeMode)
3023	{
3024	font = IM_NEW(ImFont)();
3025	font->FontId = FontNextUniqueID++;
3026	font->Flags = font_cfg_in->Flags;
3027	font->LegacySize = font_cfg_in->SizePixels;
3028	font->CurrentRasterizerDensity = font_cfg_in->RasterizerDensity;
3029	Fonts.push_back(v: font);
3030	}
3031	else
3032	{
3033	IM_ASSERT(Fonts.Size > 0 && "Cannot use MergeMode for the first font"); // When using MergeMode make sure that a font has already been added before. You can use ImGui::GetIO().Fonts->AddFontDefault() to add the default imgui font.
3034	font = Fonts.back();
3035	}
3036
3037	// Add to list
3038	Sources.push_back(v: *font_cfg_in);
3039	ImFontConfig* font_cfg = &Sources.back();
3040	if (font_cfg->DstFont == NULL)
3041	font_cfg->DstFont = font;
3042	font->Sources.push_back(v: font_cfg);
3043	ImFontAtlasBuildUpdatePointers(atlas: this); // Pointers to Sources are otherwise dangling after we called Sources.push_back().
3044
3045	if (font_cfg->FontDataOwnedByAtlas == false)
3046	{
3047	font_cfg->FontDataOwnedByAtlas = true;
3048	font_cfg->FontData = ImMemdup(src: font_cfg->FontData, size: (size_t)font_cfg->FontDataSize);
3049	}
3050
3051	// Sanity check
3052	// We don't round cfg.SizePixels yet as relative size of merged fonts are used afterwards.
3053	if (font_cfg->GlyphExcludeRanges != NULL)
3054	{
3055	int size = 0;
3056	for (const ImWchar* p = font_cfg->GlyphExcludeRanges; p[0] != 0; p++, size++) {}
3057	IM_ASSERT((size & 1) == 0 && "GlyphExcludeRanges[] size must be multiple of two!");
3058	IM_ASSERT((size <= 64) && "GlyphExcludeRanges[] size must be small!");
3059	font_cfg->GlyphExcludeRanges = (ImWchar*)ImMemdup(src: font_cfg->GlyphExcludeRanges, size: sizeof(font_cfg->GlyphExcludeRanges[0]) * (size + 1));
3060	}
3061	if (font_cfg->FontLoader != NULL)
3062	{
3063	IM_ASSERT(font_cfg->FontLoader->FontBakedLoadGlyph != NULL);
3064	IM_ASSERT(font_cfg->FontLoader->LoaderInit == NULL && font_cfg->FontLoader->LoaderShutdown == NULL); // FIXME-NEWATLAS: Unsupported yet.
3065	}
3066	IM_ASSERT(font_cfg->FontLoaderData == NULL);
3067
3068	if (!ImFontAtlasFontSourceInit(atlas: this, src: font_cfg))
3069	{
3070	// Rollback (this is a fragile/rarely exercised code-path. TestSuite's "misc_atlas_add_invalid_font" aim to test this)
3071	ImFontAtlasFontDestroySourceData(atlas: this, src: font_cfg);
3072	Sources.pop_back();
3073	font->Sources.pop_back();
3074	if (!font_cfg->MergeMode)
3075	{
3076	IM_DELETE(p: font);
3077	Fonts.pop_back();
3078	}
3079	return NULL;
3080	}
3081	ImFontAtlasFontSourceAddToFont(atlas: this, font, src: font_cfg);
3082
3083	return font;
3084	}
3085
3086	// Default font TTF is compressed with stb_compress then base85 encoded (see misc/fonts/binary_to_compressed_c.cpp for encoder)
3087	static unsigned int stb_decompress_length(const unsigned char* input);
3088	static unsigned int stb_decompress(unsigned char* output, const unsigned char* input, unsigned int length);
3089	static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; }
3090	static void Decode85(const unsigned char* src, unsigned char* dst)
3091	{
3092	while (*src)
3093	{
3094	unsigned int tmp = Decode85Byte(c: src[0]) + 85 * (Decode85Byte(c: src[1]) + 85 * (Decode85Byte(c: src[2]) + 85 * (Decode85Byte(c: src[3]) + 85 * Decode85Byte(c: src[4]))));
3095	dst[0] = ((tmp >> 0) & 0xFF); dst[1] = ((tmp >> 8) & 0xFF); dst[2] = ((tmp >> 16) & 0xFF); dst[3] = ((tmp >> 24) & 0xFF); // We can't assume little-endianness.
3096	src += 5;
3097	dst += 4;
3098	}
3099	}
3100	#ifndef IMGUI_DISABLE_DEFAULT_FONT
3101	static const char* GetDefaultCompressedFontDataTTF(int* out_size);
3102	#endif
3103
3104	// Load embedded ProggyClean.ttf at size 13, disable oversampling
3105	ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template)
3106	{
3107	#ifndef IMGUI_DISABLE_DEFAULT_FONT
3108	ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
3109	if (!font_cfg_template)
3110	{
3111	font_cfg.OversampleH = font_cfg.OversampleV = 1;
3112	font_cfg.PixelSnapH = true;
3113	}
3114	if (font_cfg.SizePixels <= 0.0f)
3115	font_cfg.SizePixels = 13.0f * 1.0f;
3116	if (font_cfg.Name[0] == '\0')
3117	ImFormatString(buf: font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), fmt: "ProggyClean.ttf");
3118	font_cfg.EllipsisChar = (ImWchar)0x0085;
3119	font_cfg.GlyphOffset.y += 1.0f * IM_TRUNC(font_cfg.SizePixels / 13.0f); // Add +1 offset per 13 units
3120
3121	int ttf_compressed_size = 0;
3122	const char* ttf_compressed = GetDefaultCompressedFontDataTTF(out_size: &ttf_compressed_size);
3123	const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault();
3124	ImFont* font = AddFontFromMemoryCompressedTTF(compressed_font_data: ttf_compressed, compressed_font_data_size: ttf_compressed_size, size_pixels: font_cfg.SizePixels, font_cfg: &font_cfg, glyph_ranges);
3125	return font;
3126	#else
3127	IM_ASSERT(0 && "AddFontDefault() disabled in this build.");
3128	IM_UNUSED(font_cfg_template);
3129	return NULL;
3130	#endif // #ifndef IMGUI_DISABLE_DEFAULT_FONT
3131	}
3132
3133	ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
3134	{
3135	IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas!");
3136	size_t data_size = 0;
3137	void* data = ImFileLoadToMemory(filename, mode: "rb", out_file_size: &data_size, padding_bytes: 0);
3138	if (!data)
3139	{
3140	if (font_cfg_template == NULL || (font_cfg_template->Flags & ImFontFlags_NoLoadError) == 0)
3141	{
3142	IMGUI_DEBUG_LOG("While loading '%s'\n", filename);
3143	IM_ASSERT_USER_ERROR(0, "Could not load font file!");
3144	}
3145	return NULL;
3146	}
3147	ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
3148	if (font_cfg.Name[0] == '\0')
3149	{
3150	// Store a short copy of filename into into the font name for convenience
3151	const char* p;
3152	for (p = filename + ImStrlen(s: filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {}
3153	ImFormatString(buf: font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), fmt: "%s", p);
3154	}
3155	return AddFontFromMemoryTTF(font_data: data, font_data_size: (int)data_size, size_pixels, font_cfg: &font_cfg, glyph_ranges);
3156	}
3157
3158	// NB: Transfer ownership of 'ttf_data' to ImFontAtlas, unless font_cfg_template->FontDataOwnedByAtlas == false. Owned TTF buffer will be deleted after Build().
3159	ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* font_data, int font_data_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
3160	{
3161	IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas!");
3162	ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
3163	IM_ASSERT(font_cfg.FontData == NULL);
3164	IM_ASSERT(font_data_size > 100 && "Incorrect value for font_data_size!"); // Heuristic to prevent accidentally passing a wrong value to font_data_size.
3165	font_cfg.FontData = font_data;
3166	font_cfg.FontDataSize = font_data_size;
3167	font_cfg.SizePixels = size_pixels > 0.0f ? size_pixels : font_cfg.SizePixels;
3168	if (glyph_ranges)
3169	font_cfg.GlyphRanges = glyph_ranges;
3170	return AddFont(font_cfg_in: &font_cfg);
3171	}
3172
3173	ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
3174	{
3175	const unsigned int buf_decompressed_size = stb_decompress_length(input: (const unsigned char*)compressed_ttf_data);
3176	unsigned char* buf_decompressed_data = (unsigned char*)IM_ALLOC(buf_decompressed_size);
3177	stb_decompress(output: buf_decompressed_data, input: (const unsigned char*)compressed_ttf_data, length: (unsigned int)compressed_ttf_size);
3178
3179	ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
3180	IM_ASSERT(font_cfg.FontData == NULL);
3181	font_cfg.FontDataOwnedByAtlas = true;
3182	return AddFontFromMemoryTTF(font_data: buf_decompressed_data, font_data_size: (int)buf_decompressed_size, size_pixels, font_cfg_template: &font_cfg, glyph_ranges);
3183	}
3184
3185	ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges)
3186	{
3187	int compressed_ttf_size = (((int)ImStrlen(s: compressed_ttf_data_base85) + 4) / 5) * 4;
3188	void* compressed_ttf = IM_ALLOC((size_t)compressed_ttf_size);
3189	Decode85(src: (const unsigned char*)compressed_ttf_data_base85, dst: (unsigned char*)compressed_ttf);
3190	ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf_data: compressed_ttf, compressed_ttf_size, size_pixels, font_cfg_template: font_cfg, glyph_ranges);
3191	IM_FREE(compressed_ttf);
3192	return font;
3193	}
3194
3195	// On font removal we need to remove references (otherwise we could queue removal?)
3196	// We allow old_font == new_font which forces updating all values (e.g. sizes)
3197	static void ImFontAtlasBuildNotifySetFont(ImFontAtlas* atlas, ImFont* old_font, ImFont* new_font)
3198	{
3199	for (ImDrawListSharedData* shared_data : atlas->DrawListSharedDatas)
3200	{
3201	if (shared_data->Font == old_font)
3202	shared_data->Font = new_font;
3203	if (ImGuiContext* ctx = shared_data->Context)
3204	{
3205	if (ctx->IO.FontDefault == old_font)
3206	ctx->IO.FontDefault = new_font;
3207	if (ctx->Font == old_font)
3208	{
3209	ImGuiContext* curr_ctx = ImGui::GetCurrentContext();
3210	bool need_bind_ctx = ctx != curr_ctx;
3211	if (need_bind_ctx)
3212	ImGui::SetCurrentContext(ctx);
3213	ImGui::SetCurrentFont(font: new_font, font_size_before_scaling: ctx->FontSizeBase, font_size_after_scaling: ctx->FontSize);
3214	if (need_bind_ctx)
3215	ImGui::SetCurrentContext(curr_ctx);
3216	}
3217	for (ImFontStackData& font_stack_data : ctx->FontStack)
3218	if (font_stack_data.Font == old_font)
3219	font_stack_data.Font = new_font;
3220	}
3221	}
3222	}
3223
3224	void ImFontAtlas::RemoveFont(ImFont* font)
3225	{
3226	IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas!");
3227	font->ClearOutputData();
3228
3229	ImFontAtlasFontDestroyOutput(atlas: this, font);
3230	for (ImFontConfig* src : font->Sources)
3231	ImFontAtlasFontDestroySourceData(atlas: this, src);
3232	for (int src_n = 0; src_n < Sources.Size; src_n++)
3233	if (Sources[src_n].DstFont == font)
3234	Sources.erase(it: &Sources[src_n--]);
3235
3236	bool removed = Fonts.find_erase(v: font);
3237	IM_ASSERT(removed);
3238	IM_UNUSED(removed);
3239
3240	ImFontAtlasBuildUpdatePointers(atlas: this);
3241
3242	font->ContainerAtlas = NULL;
3243	IM_DELETE(p: font);
3244
3245	// Notify external systems
3246	ImFont* new_current_font = Fonts.empty() ? NULL : Fonts[0];
3247	ImFontAtlasBuildNotifySetFont(atlas: this, old_font: font, new_font: new_current_font);
3248	}
3249
3250	// At it is common to do an AddCustomRect() followed by a GetCustomRect(), we provide an optional 'ImFontAtlasRect* out_r = NULL' argument to retrieve the info straight away.
3251	ImFontAtlasRectId ImFontAtlas::AddCustomRect(int width, int height, ImFontAtlasRect* out_r)
3252	{
3253	IM_ASSERT(width > 0 && width <= 0xFFFF);
3254	IM_ASSERT(height > 0 && height <= 0xFFFF);
3255
3256	if (Builder == NULL)
3257	ImFontAtlasBuildInit(atlas: this);
3258
3259	ImFontAtlasRectId r_id = ImFontAtlasPackAddRect(atlas: this, w: width, h: height);
3260	if (r_id == ImFontAtlasRectId_Invalid)
3261	return ImFontAtlasRectId_Invalid;
3262	if (out_r != NULL)
3263	GetCustomRect(id: r_id, out_r);
3264
3265	if (RendererHasTextures)
3266	{
3267	ImTextureRect* r = ImFontAtlasPackGetRect(atlas: this, id: r_id);
3268	ImFontAtlasTextureBlockQueueUpload(atlas: this, tex: TexData, x: r->x, y: r->y, w: r->w, h: r->h);
3269	}
3270	return r_id;
3271	}
3272
3273	void ImFontAtlas::RemoveCustomRect(ImFontAtlasRectId id)
3274	{
3275	if (ImFontAtlasPackGetRectSafe(atlas: this, id) == NULL)
3276	return;
3277	ImFontAtlasPackDiscardRect(atlas: this, id);
3278	}
3279
3280	#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
3281	// This API does not make sense anymore with scalable fonts.
3282	// - Prefer adding a font source (ImFontConfig) using a custom/procedural loader.
3283	// - You may use ImFontFlags_LockBakedSizes to limit an existing font to known baked sizes:
3284	// ImFont* myfont = io.Fonts->AddFontFromFileTTF(....);
3285	// myfont->GetFontBaked(16.0f);
3286	// myfont->Flags |= ImFontFlags_LockBakedSizes;
3287	ImFontAtlasRectId ImFontAtlas::AddCustomRectFontGlyph(ImFont* font, ImWchar codepoint, int width, int height, float advance_x, const ImVec2& offset)
3288	{
3289	float font_size = font->LegacySize;
3290	return AddCustomRectFontGlyphForSize(font, font_size, codepoint, w: width, h: height, advance_x, offset);
3291	}
3292	// FIXME: we automatically set glyph.Colored=true by default.
3293	// If you need to alter this, you can write 'font->Glyphs.back()->Colored' after calling AddCustomRectFontGlyph().
3294	ImFontAtlasRectId ImFontAtlas::AddCustomRectFontGlyphForSize(ImFont* font, float font_size, ImWchar codepoint, int width, int height, float advance_x, const ImVec2& offset)
3295	{
3296	#ifdef IMGUI_USE_WCHAR32
3297	IM_ASSERT(codepoint <= IM_UNICODE_CODEPOINT_MAX);
3298	#endif
3299	IM_ASSERT(font != NULL);
3300	IM_ASSERT(width > 0 && width <= 0xFFFF);
3301	IM_ASSERT(height > 0 && height <= 0xFFFF);
3302
3303	ImFontBaked* baked = font->GetFontBaked(font_size);
3304
3305	ImFontAtlasRectId r_id = ImFontAtlasPackAddRect(atlas: this, w: width, h: height);
3306	if (r_id == ImFontAtlasRectId_Invalid)
3307	return ImFontAtlasRectId_Invalid;
3308	ImTextureRect* r = ImFontAtlasPackGetRect(atlas: this, id: r_id);
3309	if (RendererHasTextures)
3310	ImFontAtlasTextureBlockQueueUpload(atlas: this, tex: TexData, x: r->x, y: r->y, w: r->w, h: r->h);
3311
3312	if (baked->IsGlyphLoaded(c: codepoint))
3313	ImFontAtlasBakedDiscardFontGlyph(atlas: this, font, baked, glyph: baked->FindGlyph(c: codepoint));
3314
3315	ImFontGlyph glyph;
3316	glyph.Codepoint = codepoint;
3317	glyph.AdvanceX = advance_x;
3318	glyph.X0 = offset.x;
3319	glyph.Y0 = offset.y;
3320	glyph.X1 = offset.x + r->w;
3321	glyph.Y1 = offset.y + r->h;
3322	glyph.Visible = true;
3323	glyph.Colored = true; // FIXME: Arbitrary
3324	glyph.PackId = r_id;
3325	ImFontAtlasBakedAddFontGlyph(atlas: this, baked, src: font->Sources[0], in_glyph: &glyph);
3326	return r_id;
3327	}
3328	#endif // #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
3329
3330	bool ImFontAtlas::GetCustomRect(ImFontAtlasRectId id, ImFontAtlasRect* out_r) const
3331	{
3332	ImTextureRect* r = ImFontAtlasPackGetRectSafe(atlas: (ImFontAtlas*)this, id);
3333	if (r == NULL)
3334	return false;
3335	IM_ASSERT(TexData->Width > 0 && TexData->Height > 0); // Font atlas needs to be built before we can calculate UV coordinates
3336	if (out_r == NULL)
3337	return true;
3338	out_r->x = r->x;
3339	out_r->y = r->y;
3340	out_r->w = r->w;
3341	out_r->h = r->h;
3342	out_r->uv0 = ImVec2((float)(r->x), (float)(r->y)) * TexUvScale;
3343	out_r->uv1 = ImVec2((float)(r->x + r->w), (float)(r->y + r->h)) * TexUvScale;
3344	return true;
3345	}
3346
3347	bool ImFontAtlasGetMouseCursorTexData(ImFontAtlas* atlas, ImGuiMouseCursor cursor_type, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2])
3348	{
3349	if (cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT)
3350	return false;
3351	if (atlas->Flags & ImFontAtlasFlags_NoMouseCursors)
3352	return false;
3353
3354	ImTextureRect* r = ImFontAtlasPackGetRect(atlas, id: atlas->Builder->PackIdMouseCursors);
3355	ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2((float)r->x, (float)r->y);
3356	ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1];
3357	*out_size = size;
3358	*out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2];
3359	out_uv_border[0] = (pos) * atlas->TexUvScale;
3360	out_uv_border[1] = (pos + size) * atlas->TexUvScale;
3361	pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
3362	out_uv_fill[0] = (pos) * atlas->TexUvScale;
3363	out_uv_fill[1] = (pos + size) * atlas->TexUvScale;
3364	return true;
3365	}
3366
3367	// When atlas->RendererHasTextures = true, this is only called if no font were loaded.
3368	void ImFontAtlasBuildMain(ImFontAtlas* atlas)
3369	{
3370	IM_ASSERT(!atlas->Locked && "Cannot modify a locked ImFontAtlas!");
3371	if (atlas->TexData && atlas->TexData->Format != atlas->TexDesiredFormat)
3372	ImFontAtlasBuildClear(atlas);
3373
3374	if (atlas->Builder == NULL)
3375	ImFontAtlasBuildInit(atlas);
3376
3377	// Default font is none are specified
3378	if (atlas->Sources.Size == 0)
3379	atlas->AddFontDefault();
3380
3381	// [LEGACY] For backends not supporting RendererHasTextures: preload all glyphs
3382	ImFontAtlasBuildUpdateRendererHasTexturesFromContext(atlas);
3383	if (atlas->RendererHasTextures == false) // ~ImGuiBackendFlags_RendererHasTextures
3384	ImFontAtlasBuildLegacyPreloadAllGlyphRanges(atlas);
3385	atlas->TexIsBuilt = true;
3386	}
3387
3388	void ImFontAtlasBuildGetOversampleFactors(ImFontConfig* src, ImFontBaked* baked, int* out_oversample_h, int* out_oversample_v)
3389	{
3390	// Automatically disable horizontal oversampling over size 36
3391	const float raster_size = baked->Size * baked->RasterizerDensity * src->RasterizerDensity;
3392	*out_oversample_h = (src->OversampleH != 0) ? src->OversampleH : (raster_size > 36.0f || src->PixelSnapH) ? 1 : 2;
3393	*out_oversample_v = (src->OversampleV != 0) ? src->OversampleV : 1;
3394	}
3395
3396	// Setup main font loader for the atlas
3397	// Every font source (ImFontConfig) will use this unless ImFontConfig::FontLoader specify a custom loader.
3398	void ImFontAtlasBuildSetupFontLoader(ImFontAtlas* atlas, const ImFontLoader* font_loader)
3399	{
3400	if (atlas->FontLoader == font_loader)
3401	return;
3402	IM_ASSERT(!atlas->Locked && "Cannot modify a locked ImFontAtlas!");
3403
3404	for (ImFont* font : atlas->Fonts)
3405	ImFontAtlasFontDestroyOutput(atlas, font);
3406	if (atlas->Builder && atlas->FontLoader && atlas->FontLoader->LoaderShutdown)
3407	atlas->FontLoader->LoaderShutdown(atlas);
3408
3409	atlas->FontLoader = font_loader;
3410	atlas->FontLoaderName = font_loader ? font_loader->Name : "NULL";
3411	IM_ASSERT(atlas->FontLoaderData == NULL);
3412
3413	if (atlas->Builder && atlas->FontLoader && atlas->FontLoader->LoaderInit)
3414	atlas->FontLoader->LoaderInit(atlas);
3415	for (ImFont* font : atlas->Fonts)
3416	ImFontAtlasFontInitOutput(atlas, font);
3417	for (ImFont* font : atlas->Fonts)
3418	for (ImFontConfig* src : font->Sources)
3419	ImFontAtlasFontSourceAddToFont(atlas, font, src);
3420	}
3421
3422	// Preload all glyph ranges for legacy backends.
3423	// This may lead to multiple texture creation which might be a little slower than before.
3424	void ImFontAtlasBuildLegacyPreloadAllGlyphRanges(ImFontAtlas* atlas)
3425	{
3426	atlas->Builder->PreloadedAllGlyphsRanges = true;
3427	for (ImFont* font : atlas->Fonts)
3428	{
3429	ImFontBaked* baked = font->GetFontBaked(font_size: font->LegacySize);
3430	if (font->FallbackChar != 0)
3431	baked->FindGlyph(c: font->FallbackChar);
3432	if (font->EllipsisChar != 0)
3433	baked->FindGlyph(c: font->EllipsisChar);
3434	for (ImFontConfig* src : font->Sources)
3435	{
3436	const ImWchar* ranges = src->GlyphRanges ? src->GlyphRanges : atlas->GetGlyphRangesDefault();
3437	for (; ranges[0]; ranges += 2)
3438	for (unsigned int c = ranges[0]; c <= ranges[1] && c <= IM_UNICODE_CODEPOINT_MAX; c++) //-V560
3439	baked->FindGlyph(c: (ImWchar)c);
3440	}
3441	}
3442	}
3443
3444	// FIXME: May make ImFont::Sources a ImSpan<> and move ownership to ImFontAtlas
3445	void ImFontAtlasBuildUpdatePointers(ImFontAtlas* atlas)
3446	{
3447	for (ImFont* font : atlas->Fonts)
3448	font->Sources.resize(new_size: 0);
3449	for (ImFontConfig& src : atlas->Sources)
3450	src.DstFont->Sources.push_back(v: &src);
3451	}
3452
3453	// Render a white-colored bitmap encoded in a string
3454	void ImFontAtlasBuildRenderBitmapFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char)
3455	{
3456	ImTextureData* tex = atlas->TexData;
3457	IM_ASSERT(x >= 0 && x + w <= tex->Width);
3458	IM_ASSERT(y >= 0 && y + h <= tex->Height);
3459
3460	switch (tex->Format)
3461	{
3462	case ImTextureFormat_Alpha8:
3463	{
3464	ImU8* out_p = (ImU8*)tex->GetPixelsAt(x, y);
3465	for (int off_y = 0; off_y < h; off_y++, out_p += tex->Width, in_str += w)
3466	for (int off_x = 0; off_x < w; off_x++)
3467	out_p[off_x] = (in_str[off_x] == in_marker_char) ? 0xFF : 0x00;
3468	break;
3469	}
3470	case ImTextureFormat_RGBA32:
3471	{
3472	ImU32* out_p = (ImU32*)tex->GetPixelsAt(x, y);
3473	for (int off_y = 0; off_y < h; off_y++, out_p += tex->Width, in_str += w)
3474	for (int off_x = 0; off_x < w; off_x++)
3475	out_p[off_x] = (in_str[off_x] == in_marker_char) ? IM_COL32_WHITE : IM_COL32_BLACK_TRANS;
3476	break;
3477	}
3478	}
3479	}
3480
3481	static void ImFontAtlasBuildUpdateBasicTexData(ImFontAtlas* atlas)
3482	{
3483	// Pack and store identifier so we can refresh UV coordinates on texture resize.
3484	// FIXME-NEWATLAS: User/custom rects where user code wants to store UV coordinates will need to do the same thing.
3485	ImFontAtlasBuilder* builder = atlas->Builder;
3486	ImVec2i pack_size = (atlas->Flags & ImFontAtlasFlags_NoMouseCursors) ? ImVec2i(2, 2) : ImVec2i(FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1, FONT_ATLAS_DEFAULT_TEX_DATA_H);
3487
3488	ImFontAtlasRect r;
3489	bool add_and_draw = (atlas->GetCustomRect(id: builder->PackIdMouseCursors, out_r: &r) == false);
3490	if (add_and_draw)
3491	{
3492	builder->PackIdMouseCursors = atlas->AddCustomRect(width: pack_size.x, height: pack_size.y, out_r: &r);
3493	IM_ASSERT(builder->PackIdMouseCursors != ImFontAtlasRectId_Invalid);
3494
3495	// Draw to texture
3496	if (atlas->Flags & ImFontAtlasFlags_NoMouseCursors)
3497	{
3498	// 2x2 white pixels
3499	ImFontAtlasBuildRenderBitmapFromString(atlas, x: r.x, y: r.y, w: 2, h: 2, in_str: "XX" "XX", in_marker_char: 'X');
3500	}
3501	else
3502	{
3503	// 2x2 white pixels + mouse cursors
3504	const int x_for_white = r.x;
3505	const int x_for_black = r.x + FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
3506	ImFontAtlasBuildRenderBitmapFromString(atlas, x: x_for_white, y: r.y, w: FONT_ATLAS_DEFAULT_TEX_DATA_W, h: FONT_ATLAS_DEFAULT_TEX_DATA_H, in_str: FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, in_marker_char: '.');
3507	ImFontAtlasBuildRenderBitmapFromString(atlas, x: x_for_black, y: r.y, w: FONT_ATLAS_DEFAULT_TEX_DATA_W, h: FONT_ATLAS_DEFAULT_TEX_DATA_H, in_str: FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, in_marker_char: 'X');
3508	}
3509	}
3510
3511	// Refresh UV coordinates
3512	atlas->TexUvWhitePixel = ImVec2((r.x + 0.5f) * atlas->TexUvScale.x, (r.y + 0.5f) * atlas->TexUvScale.y);
3513	}
3514
3515	static void ImFontAtlasBuildUpdateLinesTexData(ImFontAtlas* atlas)
3516	{
3517	if (atlas->Flags & ImFontAtlasFlags_NoBakedLines)
3518	return;
3519
3520	// Pack and store identifier so we can refresh UV coordinates on texture resize.
3521	ImTextureData* tex = atlas->TexData;
3522	ImFontAtlasBuilder* builder = atlas->Builder;
3523
3524	ImFontAtlasRect r;
3525	bool add_and_draw = atlas->GetCustomRect(id: builder->PackIdLinesTexData, out_r: &r) == false;
3526	if (add_and_draw)
3527	{
3528	ImVec2i pack_size = ImVec2i(IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 2, IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1);
3529	builder->PackIdLinesTexData = atlas->AddCustomRect(width: pack_size.x, height: pack_size.y, out_r: &r);
3530	IM_ASSERT(builder->PackIdLinesTexData != ImFontAtlasRectId_Invalid);
3531	}
3532
3533	// Register texture region for thick lines
3534	// The +2 here is to give space for the end caps, whilst height +1 is to accommodate the fact we have a zero-width row
3535	// This generates a triangular shape in the texture, with the various line widths stacked on top of each other to allow interpolation between them
3536	for (int n = 0; n < IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1; n++) // +1 because of the zero-width row
3537	{
3538	// Each line consists of at least two empty pixels at the ends, with a line of solid pixels in the middle
3539	const int y = n;
3540	const int line_width = n;
3541	const int pad_left = (r.w - line_width) / 2;
3542	const int pad_right = r.w - (pad_left + line_width);
3543	IM_ASSERT(pad_left + line_width + pad_right == r.w && y < r.h); // Make sure we're inside the texture bounds before we start writing pixels
3544
3545	// Write each slice
3546	if (add_and_draw && tex->Format == ImTextureFormat_Alpha8)
3547	{
3548	ImU8* write_ptr = (ImU8*)tex->GetPixelsAt(x: r.x, y: r.y + y);
3549	for (int i = 0; i < pad_left; i++)
3550	*(write_ptr + i) = 0x00;
3551
3552	for (int i = 0; i < line_width; i++)
3553	*(write_ptr + pad_left + i) = 0xFF;
3554
3555	for (int i = 0; i < pad_right; i++)
3556	*(write_ptr + pad_left + line_width + i) = 0x00;
3557	}
3558	else if (add_and_draw && tex->Format == ImTextureFormat_RGBA32)
3559	{
3560	ImU32* write_ptr = (ImU32*)(void*)tex->GetPixelsAt(x: r.x, y: r.y + y);
3561	for (int i = 0; i < pad_left; i++)
3562	*(write_ptr + i) = IM_COL32(255, 255, 255, 0);
3563
3564	for (int i = 0; i < line_width; i++)
3565	*(write_ptr + pad_left + i) = IM_COL32_WHITE;
3566
3567	for (int i = 0; i < pad_right; i++)
3568	*(write_ptr + pad_left + line_width + i) = IM_COL32(255, 255, 255, 0);
3569	}
3570
3571	// Refresh UV coordinates
3572	ImVec2 uv0 = ImVec2((float)(r.x + pad_left - 1), (float)(r.y + y)) * atlas->TexUvScale;
3573	ImVec2 uv1 = ImVec2((float)(r.x + pad_left + line_width + 1), (float)(r.y + y + 1)) * atlas->TexUvScale;
3574	float half_v = (uv0.y + uv1.y) * 0.5f; // Calculate a constant V in the middle of the row to avoid sampling artifacts
3575	atlas->TexUvLines[n] = ImVec4(uv0.x, half_v, uv1.x, half_v);
3576	}
3577	}
3578
3579	//-----------------------------------------------------------------------------------------------------------------------------
3580
3581	// Was tempted to lazily init FontSrc but wouldn't save much + makes it more complicated to detect invalid data at AddFont()
3582	bool ImFontAtlasFontInitOutput(ImFontAtlas* atlas, ImFont* font)
3583	{
3584	bool ret = true;
3585	for (ImFontConfig* src : font->Sources)
3586	if (!ImFontAtlasFontSourceInit(atlas, src))
3587	ret = false;
3588	IM_ASSERT(ret); // Unclear how to react to this meaningfully. Assume that result will be same as initial AddFont() call.
3589	return ret;
3590	}
3591
3592	// Keep source/input FontData
3593	void ImFontAtlasFontDestroyOutput(ImFontAtlas* atlas, ImFont* font)
3594	{
3595	font->ClearOutputData();
3596	for (ImFontConfig* src : font->Sources)
3597	{
3598	const ImFontLoader* loader = src->FontLoader ? src->FontLoader : atlas->FontLoader;
3599	if (loader && loader->FontSrcDestroy != NULL)
3600	loader->FontSrcDestroy(atlas, src);
3601	}
3602	}
3603
3604	//-----------------------------------------------------------------------------------------------------------------------------
3605
3606	bool ImFontAtlasFontSourceInit(ImFontAtlas* atlas, ImFontConfig* src)
3607	{
3608	const ImFontLoader* loader = src->FontLoader ? src->FontLoader : atlas->FontLoader;
3609	if (loader->FontSrcInit != NULL && !loader->FontSrcInit(atlas, src))
3610	return false;
3611	return true;
3612	}
3613
3614	void ImFontAtlasFontSourceAddToFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* src)
3615	{
3616	if (src->MergeMode == false)
3617	{
3618	font->ClearOutputData();
3619	//font->FontSize = src->SizePixels;
3620	font->ContainerAtlas = atlas;
3621	IM_ASSERT(font->Sources[0] == src);
3622	}
3623	atlas->TexIsBuilt = false; // For legacy backends
3624	ImFontAtlasBuildSetupFontSpecialGlyphs(atlas, font, src);
3625	}
3626
3627	void ImFontAtlasFontDestroySourceData(ImFontAtlas* atlas, ImFontConfig* src)
3628	{
3629	IM_UNUSED(atlas);
3630	if (src->FontDataOwnedByAtlas)
3631	IM_FREE(src->FontData);
3632	src->FontData = NULL;
3633	if (src->GlyphExcludeRanges)
3634	IM_FREE((void*)src->GlyphExcludeRanges);
3635	src->GlyphExcludeRanges = NULL;
3636	}
3637
3638	// Create a compact, baked "..." if it doesn't exist, by using the ".".
3639	// This may seem overly complicated right now but the point is to exercise and improve a technique which should be increasingly used.
3640	// FIXME-NEWATLAS: This borrows too much from FontLoader's FontLoadGlyph() handlers and suggest that we should add further helpers.
3641	static ImFontGlyph* ImFontAtlasBuildSetupFontBakedEllipsis(ImFontAtlas* atlas, ImFontBaked* baked)
3642	{
3643	ImFont* font = baked->ContainerFont;
3644	IM_ASSERT(font->EllipsisChar != 0);
3645
3646	const ImFontGlyph* dot_glyph = baked->FindGlyphNoFallback(c: (ImWchar)'.');
3647	if (dot_glyph == NULL)
3648	dot_glyph = baked->FindGlyphNoFallback(c: (ImWchar)0xFF0E);
3649	if (dot_glyph == NULL)
3650	return NULL;
3651	ImFontAtlasRectId dot_r_id = dot_glyph->PackId; // Deep copy to avoid invalidation of glyphs and rect pointers
3652	ImTextureRect* dot_r = ImFontAtlasPackGetRect(atlas, id: dot_r_id);
3653	const int dot_spacing = 1;
3654	const float dot_step = (dot_glyph->X1 - dot_glyph->X0) + dot_spacing;
3655
3656	ImFontAtlasRectId pack_id = ImFontAtlasPackAddRect(atlas, w: (dot_r->w * 3 + dot_spacing * 2), h: dot_r->h);
3657	ImTextureRect* r = ImFontAtlasPackGetRect(atlas, id: pack_id);
3658
3659	ImFontGlyph glyph_in = {};
3660	ImFontGlyph* glyph = &glyph_in;
3661	glyph->Codepoint = font->EllipsisChar;
3662	glyph->AdvanceX = ImMax(lhs: dot_glyph->AdvanceX, rhs: dot_glyph->X0 + dot_step * 3.0f - dot_spacing); // FIXME: Slightly odd for normally mono-space fonts but since this is used for trailing contents.
3663	glyph->X0 = dot_glyph->X0;
3664	glyph->Y0 = dot_glyph->Y0;
3665	glyph->X1 = dot_glyph->X0 + dot_step * 3 - dot_spacing;
3666	glyph->Y1 = dot_glyph->Y1;
3667	glyph->Visible = true;
3668	glyph->PackId = pack_id;
3669	glyph = ImFontAtlasBakedAddFontGlyph(atlas, baked, NULL, in_glyph: glyph);
3670	dot_glyph = NULL; // Invalidated
3671
3672	// Copy to texture, post-process and queue update for backend
3673	// FIXME-NEWATLAS-V2: Dot glyph is already post-processed as this point, so this would damage it.
3674	dot_r = ImFontAtlasPackGetRect(atlas, id: dot_r_id);
3675	ImTextureData* tex = atlas->TexData;
3676	for (int n = 0; n < 3; n++)
3677	ImFontAtlasTextureBlockCopy(src_tex: tex, src_x: dot_r->x, src_y: dot_r->y, dst_tex: tex, dst_x: r->x + (dot_r->w + dot_spacing) * n, dst_y: r->y, w: dot_r->w, h: dot_r->h);
3678	ImFontAtlasTextureBlockQueueUpload(atlas, tex, x: r->x, y: r->y, w: r->w, h: r->h);
3679
3680	return glyph;
3681	}
3682
3683	// Load fallback in order to obtain its index
3684	// (this is called from in hot-path so we avoid extraneous parameters to minimize impact on code size)
3685	static void ImFontAtlasBuildSetupFontBakedFallback(ImFontBaked* baked)
3686	{
3687	IM_ASSERT(baked->FallbackGlyphIndex == -1);
3688	IM_ASSERT(baked->FallbackAdvanceX == 0.0f);
3689	ImFont* font = baked->ContainerFont;
3690	ImFontGlyph* fallback_glyph = NULL;
3691	if (font->FallbackChar != 0)
3692	fallback_glyph = baked->FindGlyphNoFallback(c: font->FallbackChar);
3693	if (fallback_glyph == NULL)
3694	{
3695	ImFontGlyph* space_glyph = baked->FindGlyphNoFallback(c: (ImWchar)' ');
3696	ImFontGlyph glyph;
3697	glyph.Codepoint = 0;
3698	glyph.AdvanceX = space_glyph ? space_glyph->AdvanceX : IM_ROUND(baked->Size * 0.40f);
3699	fallback_glyph = ImFontAtlasBakedAddFontGlyph(atlas: font->ContainerAtlas, baked, NULL, in_glyph: &glyph);
3700	}
3701	baked->FallbackGlyphIndex = baked->Glyphs.index_from_ptr(it: fallback_glyph); // Storing index avoid need to update pointer on growth and simplify inner loop code
3702	baked->FallbackAdvanceX = fallback_glyph->AdvanceX;
3703	}
3704
3705	static void ImFontAtlasBuildSetupFontBakedBlanks(ImFontAtlas* atlas, ImFontBaked* baked)
3706	{
3707	// Mark space as always hidden (not strictly correct/necessary. but some e.g. icons fonts don't have a space. it tends to look neater in previews)
3708	ImFontGlyph* space_glyph = baked->FindGlyphNoFallback(c: (ImWchar)' ');
3709	if (space_glyph != NULL)
3710	space_glyph->Visible = false;
3711
3712	// Setup Tab character.
3713	// FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?)
3714	if (baked->FindGlyphNoFallback(c: '\t') == NULL && space_glyph != NULL)
3715	{
3716	ImFontGlyph tab_glyph;
3717	tab_glyph.Codepoint = '\t';
3718	tab_glyph.AdvanceX = space_glyph->AdvanceX * IM_TABSIZE;
3719	ImFontAtlasBakedAddFontGlyph(atlas, baked, NULL, in_glyph: &tab_glyph);
3720	}
3721	}
3722
3723	// Load/identify special glyphs
3724	// (note that this is called again for fonts with MergeMode)
3725	void ImFontAtlasBuildSetupFontSpecialGlyphs(ImFontAtlas* atlas, ImFont* font, ImFontConfig* src)
3726	{
3727	IM_UNUSED(atlas);
3728	IM_ASSERT(font->Sources.contains(src));
3729
3730	// Find Fallback character. Actual glyph loaded in GetFontBaked().
3731	const ImWchar fallback_chars[] = { font->FallbackChar, (ImWchar)IM_UNICODE_CODEPOINT_INVALID, (ImWchar)'?', (ImWchar)' ' };
3732	if (font->FallbackChar == 0)
3733	for (ImWchar candidate_char : fallback_chars)
3734	if (candidate_char != 0 && font->IsGlyphInFont(c: candidate_char))
3735	{
3736	font->FallbackChar = (ImWchar)candidate_char;
3737	break;
3738	}
3739
3740	// Setup Ellipsis character. It is required for rendering elided text. We prefer using U+2026 (horizontal ellipsis).
3741	// However some old fonts may contain ellipsis at U+0085. Here we auto-detect most suitable ellipsis character.
3742	// FIXME: Note that 0x2026 is rarely included in our font ranges. Because of this we are more likely to use three individual dots.
3743	const ImWchar ellipsis_chars[] = { src->EllipsisChar, (ImWchar)0x2026, (ImWchar)0x0085 };
3744	if (font->EllipsisChar == 0)
3745	for (ImWchar candidate_char : ellipsis_chars)
3746	if (candidate_char != 0 && font->IsGlyphInFont(c: candidate_char))
3747	{
3748	font->EllipsisChar = candidate_char;
3749	break;
3750	}
3751	if (font->EllipsisChar == 0)
3752	{
3753	font->EllipsisChar = 0x0085;
3754	font->EllipsisAutoBake = true;
3755	}
3756	}
3757
3758	void ImFontAtlasBakedDiscardFontGlyph(ImFontAtlas* atlas, ImFont* font, ImFontBaked* baked, ImFontGlyph* glyph)
3759	{
3760	if (glyph->PackId != ImFontAtlasRectId_Invalid)
3761	{
3762	ImFontAtlasPackDiscardRect(atlas, id: glyph->PackId);
3763	glyph->PackId = ImFontAtlasRectId_Invalid;
3764	}
3765	ImWchar c = (ImWchar)glyph->Codepoint;
3766	IM_ASSERT(font->FallbackChar != c && font->EllipsisChar != c); // Unsupported for simplicity
3767	IM_ASSERT(glyph >= baked->Glyphs.Data && glyph < baked->Glyphs.Data + baked->Glyphs.Size);
3768	IM_UNUSED(font);
3769	baked->IndexLookup[c] = IM_FONTGLYPH_INDEX_UNUSED;
3770	baked->IndexAdvanceX[c] = baked->FallbackAdvanceX;
3771	}
3772
3773	ImFontBaked* ImFontAtlasBakedAdd(ImFontAtlas* atlas, ImFont* font, float font_size, float font_rasterizer_density, ImGuiID baked_id)
3774	{
3775	IMGUI_DEBUG_LOG_FONT("[font] Created baked %.2fpx\n", font_size);
3776	ImFontBaked* baked = atlas->Builder->BakedPool.push_back(v: ImFontBaked());
3777	baked->Size = font_size;
3778	baked->RasterizerDensity = font_rasterizer_density;
3779	baked->BakedId = baked_id;
3780	baked->ContainerFont = font;
3781	baked->LastUsedFrame = atlas->Builder->FrameCount;
3782
3783	// Initialize backend data
3784	size_t loader_data_size = 0;
3785	for (ImFontConfig* src : font->Sources) // Cannot easily be cached as we allow changing backend
3786	{
3787	const ImFontLoader* loader = src->FontLoader ? src->FontLoader : atlas->FontLoader;
3788	loader_data_size += loader->FontBakedSrcLoaderDataSize;
3789	}
3790	baked->FontLoaderDatas = (loader_data_size > 0) ? IM_ALLOC(loader_data_size) : NULL;
3791	char* loader_data_p = (char*)baked->FontLoaderDatas;
3792	for (ImFontConfig* src : font->Sources)
3793	{
3794	const ImFontLoader* loader = src->FontLoader ? src->FontLoader : atlas->FontLoader;
3795	if (loader->FontBakedInit)
3796	loader->FontBakedInit(atlas, src, baked, loader_data_p);
3797	loader_data_p += loader->FontBakedSrcLoaderDataSize;
3798	}
3799
3800	ImFontAtlasBuildSetupFontBakedBlanks(atlas, baked);
3801	return baked;
3802	}
3803
3804	// FIXME-OPT: This is not a fast query. Adding a BakedCount field in Font might allow to take a shortcut for the most common case.
3805	ImFontBaked* ImFontAtlasBakedGetClosestMatch(ImFontAtlas* atlas, ImFont* font, float font_size, float font_rasterizer_density)
3806	{
3807	ImFontAtlasBuilder* builder = atlas->Builder;
3808	for (int step_n = 0; step_n < 2; step_n++)
3809	{
3810	ImFontBaked* closest_larger_match = NULL;
3811	ImFontBaked* closest_smaller_match = NULL;
3812	for (int baked_n = 0; baked_n < builder->BakedPool.Size; baked_n++)
3813	{
3814	ImFontBaked* baked = &builder->BakedPool[baked_n];
3815	if (baked->ContainerFont != font || baked->WantDestroy)
3816	continue;
3817	if (step_n == 0 && baked->RasterizerDensity != font_rasterizer_density) // First try with same density
3818	continue;
3819	if (baked->Size > font_size && (closest_larger_match == NULL || baked->Size < closest_larger_match->Size))
3820	closest_larger_match = baked;
3821	if (baked->Size < font_size && (closest_smaller_match == NULL || baked->Size > closest_smaller_match->Size))
3822	closest_smaller_match = baked;
3823	}
3824	if (closest_larger_match)
3825	if (closest_smaller_match == NULL || (closest_larger_match->Size >= font_size * 2.0f && closest_smaller_match->Size > font_size * 0.5f))
3826	return closest_larger_match;
3827	if (closest_smaller_match)
3828	return closest_smaller_match;
3829	}
3830	return NULL;
3831	}
3832
3833	void ImFontAtlasBakedDiscard(ImFontAtlas* atlas, ImFont* font, ImFontBaked* baked)
3834	{
3835	ImFontAtlasBuilder* builder = atlas->Builder;
3836	IMGUI_DEBUG_LOG_FONT("[font] Discard baked %.2f for \"%s\"\n", baked->Size, font->GetDebugName());
3837
3838	for (ImFontGlyph& glyph : baked->Glyphs)
3839	if (glyph.PackId != ImFontAtlasRectId_Invalid)
3840	ImFontAtlasPackDiscardRect(atlas, id: glyph.PackId);
3841
3842	char* loader_data_p = (char*)baked->FontLoaderDatas;
3843	for (ImFontConfig* src : font->Sources)
3844	{
3845	const ImFontLoader* loader = src->FontLoader ? src->FontLoader : atlas->FontLoader;
3846	if (loader->FontBakedDestroy)
3847	loader->FontBakedDestroy(atlas, src, baked, loader_data_p);
3848	loader_data_p += loader->FontBakedSrcLoaderDataSize;
3849	}
3850	if (baked->FontLoaderDatas)
3851	{
3852	IM_FREE(baked->FontLoaderDatas);
3853	baked->FontLoaderDatas = NULL;
3854	}
3855	builder->BakedMap.SetVoidPtr(key: baked->BakedId, NULL);
3856	builder->BakedDiscardedCount++;
3857	baked->ClearOutputData();
3858	baked->WantDestroy = true;
3859	font->LastBaked = NULL;
3860	}
3861
3862	// use unused_frames==0 to discard everything.
3863	void ImFontAtlasFontDiscardBakes(ImFontAtlas* atlas, ImFont* font, int unused_frames)
3864	{
3865	if (ImFontAtlasBuilder* builder = atlas->Builder) // This can be called from font destructor
3866	for (int baked_n = 0; baked_n < builder->BakedPool.Size; baked_n++)
3867	{
3868	ImFontBaked* baked = &builder->BakedPool[baked_n];
3869	if (baked->LastUsedFrame + unused_frames > atlas->Builder->FrameCount)
3870	continue;
3871	if (baked->ContainerFont != font || baked->WantDestroy)
3872	continue;
3873	ImFontAtlasBakedDiscard(atlas, font, baked);
3874	}
3875	}
3876
3877	// use unused_frames==0 to discard everything.
3878	void ImFontAtlasBuildDiscardBakes(ImFontAtlas* atlas, int unused_frames)
3879	{
3880	ImFontAtlasBuilder* builder = atlas->Builder;
3881	for (int baked_n = 0; baked_n < builder->BakedPool.Size; baked_n++)
3882	{
3883	ImFontBaked* baked = &builder->BakedPool[baked_n];
3884	if (baked->LastUsedFrame + unused_frames > atlas->Builder->FrameCount)
3885	continue;
3886	if (baked->WantDestroy || (baked->ContainerFont->Flags & ImFontFlags_LockBakedSizes))
3887	continue;
3888	ImFontAtlasBakedDiscard(atlas, font: baked->ContainerFont, baked);
3889	}
3890	}
3891
3892	// Those functions are designed to facilitate changing the underlying structures for ImFontAtlas to store an array of ImDrawListSharedData*
3893	void ImFontAtlasAddDrawListSharedData(ImFontAtlas* atlas, ImDrawListSharedData* data)
3894	{
3895	IM_ASSERT(!atlas->DrawListSharedDatas.contains(data));
3896	atlas->DrawListSharedDatas.push_back(v: data);
3897	}
3898
3899	void ImFontAtlasRemoveDrawListSharedData(ImFontAtlas* atlas, ImDrawListSharedData* data)
3900	{
3901	IM_ASSERT(atlas->DrawListSharedDatas.contains(data));
3902	atlas->DrawListSharedDatas.find_erase(v: data);
3903	}
3904
3905	// Update texture identifier in all active draw lists
3906	void ImFontAtlasUpdateDrawListsTextures(ImFontAtlas* atlas, ImTextureRef old_tex, ImTextureRef new_tex)
3907	{
3908	for (ImDrawListSharedData* shared_data : atlas->DrawListSharedDatas)
3909	for (ImDrawList* draw_list : shared_data->DrawLists)
3910	{
3911	// Replace in command-buffer
3912	// (there is not need to replace in ImDrawListSplitter: current channel is in ImDrawList's CmdBuffer[],
3913	// other channels will be on SetCurrentChannel() which already needs to compare CmdHeader anyhow)
3914	if (draw_list->CmdBuffer.Size > 0 && draw_list->_CmdHeader.TexRef == old_tex)
3915	draw_list->_SetTexture(tex_ref: new_tex);
3916
3917	// Replace in stack
3918	for (ImTextureRef& stacked_tex : draw_list->_TextureStack)
3919	if (stacked_tex == old_tex)
3920	stacked_tex = new_tex;
3921	}
3922	}
3923
3924	// Update texture coordinates in all draw list shared context
3925	// FIXME-NEWATLAS FIXME-OPT: Doesn't seem necessary to update for all, only one bound to current context?
3926	void ImFontAtlasUpdateDrawListsSharedData(ImFontAtlas* atlas)
3927	{
3928	for (ImDrawListSharedData* shared_data : atlas->DrawListSharedDatas)
3929	if (shared_data->FontAtlas == atlas)
3930	{
3931	shared_data->TexUvWhitePixel = atlas->TexUvWhitePixel;
3932	shared_data->TexUvLines = atlas->TexUvLines;
3933	}
3934	}
3935
3936	// Set current texture. This is mostly called from AddTexture() + to handle a failed resize.
3937	static void ImFontAtlasBuildSetTexture(ImFontAtlas* atlas, ImTextureData* tex)
3938	{
3939	ImTextureRef old_tex_ref = atlas->TexRef;
3940	atlas->TexData = tex;
3941	atlas->TexUvScale = ImVec2(1.0f / tex->Width, 1.0f / tex->Height);
3942	atlas->TexRef._TexData = tex;
3943	//atlas->TexRef._TexID = tex->TexID; // <-- We intentionally don't do that. It would be misleading and betray promise that both fields aren't set.
3944	ImFontAtlasUpdateDrawListsTextures(atlas, old_tex: old_tex_ref, new_tex: atlas->TexRef);
3945	}
3946
3947	// Create a new texture, discard previous one
3948	ImTextureData* ImFontAtlasTextureAdd(ImFontAtlas* atlas, int w, int h)
3949	{
3950	ImTextureData* old_tex = atlas->TexData;
3951	ImTextureData* new_tex;
3952
3953	// FIXME: Cannot reuse texture because old UV may have been used already (unless we remap UV).
3954	/*if (old_tex != NULL && old_tex->Status == ImTextureStatus_WantCreate)
3955	{
3956	// Reuse texture not yet used by backend.
3957	IM_ASSERT(old_tex->TexID == ImTextureID_Invalid && old_tex->BackendUserData == NULL);
3958	old_tex->DestroyPixels();
3959	old_tex->Updates.clear();
3960	new_tex = old_tex;
3961	old_tex = NULL;
3962	}
3963	else*/
3964	{
3965	// Add new
3966	new_tex = IM_NEW(ImTextureData)();
3967	new_tex->UniqueID = atlas->TexNextUniqueID++;
3968	atlas->TexList.push_back(v: new_tex);
3969	}
3970	if (old_tex != NULL)
3971	{
3972	// Queue old as to destroy next frame
3973	old_tex->WantDestroyNextFrame = true;
3974	IM_ASSERT(old_tex->Status == ImTextureStatus_OK || old_tex->Status == ImTextureStatus_WantCreate || old_tex->Status == ImTextureStatus_WantUpdates);
3975	}
3976
3977	new_tex->Create(format: atlas->TexDesiredFormat, w, h);
3978	atlas->TexIsBuilt = false;
3979
3980	ImFontAtlasBuildSetTexture(atlas, tex: new_tex);
3981
3982	return new_tex;
3983	}
3984
3985	#if 0
3986	#define STB_IMAGE_WRITE_IMPLEMENTATION
3987	#include "../stb/stb_image_write.h"
3988	static void ImFontAtlasDebugWriteTexToDisk(ImTextureData* tex, const char* description)
3989	{
3990	ImGuiContext& g = *GImGui;
3991	char buf[128];
3992	ImFormatString(buf, IM_ARRAYSIZE(buf), "[%05d] Texture #%03d - %s.png", g.FrameCount, tex->UniqueID, description);
3993	stbi_write_png(buf, tex->Width, tex->Height, tex->BytesPerPixel, tex->Pixels, tex->GetPitch()); // tex->BytesPerPixel is technically not component, but ok for the formats we support.
3994	}
3995	#endif
3996
3997	void ImFontAtlasTextureRepack(ImFontAtlas* atlas, int w, int h)
3998	{
3999	ImFontAtlasBuilder* builder = atlas->Builder;
4000	builder->LockDisableResize = true;
4001
4002	ImTextureData* old_tex = atlas->TexData;
4003	ImTextureData* new_tex = ImFontAtlasTextureAdd(atlas, w, h);
4004	new_tex->UseColors = old_tex->UseColors;
4005	IMGUI_DEBUG_LOG_FONT("[font] Texture #%03d: resize+repack %dx%d => Texture #%03d: %dx%d\n", old_tex->UniqueID, old_tex->Width, old_tex->Height, new_tex->UniqueID, new_tex->Width, new_tex->Height);
4006	//for (int baked_n = 0; baked_n < builder->BakedPool.Size; baked_n++)
4007	// IMGUI_DEBUG_LOG_FONT("[font] - Baked %.2fpx, %d glyphs, want_destroy=%d\n", builder->BakedPool[baked_n].FontSize, builder->BakedPool[baked_n].Glyphs.Size, builder->BakedPool[baked_n].WantDestroy);
4008	//IMGUI_DEBUG_LOG_FONT("[font] - Old packed rects: %d, area %d px\n", builder->RectsPackedCount, builder->RectsPackedSurface);
4009	//ImFontAtlasDebugWriteTexToDisk(old_tex, "Before Pack");
4010
4011	// Repack, lose discarded rectangle, copy pixels
4012	// FIXME-NEWATLAS: This is unstable because packing order is based on RectsIndex
4013	// FIXME-NEWATLAS-V2: Repacking in batch would be beneficial to packing heuristic, and fix stability.
4014	// FIXME-NEWATLAS-TESTS: Test calling RepackTexture with size too small to fits existing rects.
4015	ImFontAtlasPackInit(atlas);
4016	ImVector<ImTextureRect> old_rects;
4017	ImVector<ImFontAtlasRectEntry> old_index = builder->RectsIndex;
4018	old_rects.swap(rhs&: builder->Rects);
4019
4020	for (ImFontAtlasRectEntry& index_entry : builder->RectsIndex)
4021	{
4022	if (index_entry.IsUsed == false)
4023	continue;
4024	ImTextureRect& old_r = old_rects[index_entry.TargetIndex];
4025	if (old_r.w == 0 && old_r.h == 0)
4026	continue;
4027	ImFontAtlasRectId new_r_id = ImFontAtlasPackAddRect(atlas, w: old_r.w, h: old_r.h, overwrite_entry: &index_entry);
4028	if (new_r_id == ImFontAtlasRectId_Invalid)
4029	{
4030	// Undo, grow texture and try repacking again.
4031	// FIXME-NEWATLAS-TESTS: This is a very rarely exercised path! It needs to be automatically tested properly.
4032	IMGUI_DEBUG_LOG_FONT("[font] Texture #%03d: resize failed. Will grow.\n", new_tex->UniqueID);
4033	new_tex->WantDestroyNextFrame = true;
4034	builder->Rects.swap(rhs&: old_rects);
4035	builder->RectsIndex = old_index;
4036	ImFontAtlasBuildSetTexture(atlas, tex: old_tex);
4037	ImFontAtlasTextureGrow(atlas, old_w: w, old_h: h); // Recurse
4038	return;
4039	}
4040	IM_ASSERT(ImFontAtlasRectId_GetIndex(new_r_id) == builder->RectsIndex.index_from_ptr(&index_entry));
4041	ImTextureRect* new_r = ImFontAtlasPackGetRect(atlas, id: new_r_id);
4042	ImFontAtlasTextureBlockCopy(src_tex: old_tex, src_x: old_r.x, src_y: old_r.y, dst_tex: new_tex, dst_x: new_r->x, dst_y: new_r->y, w: new_r->w, h: new_r->h);
4043	}
4044	IM_ASSERT(old_rects.Size == builder->Rects.Size + builder->RectsDiscardedCount);
4045	builder->RectsDiscardedCount = 0;
4046	builder->RectsDiscardedSurface = 0;
4047
4048	// Patch glyphs UV
4049	for (int baked_n = 0; baked_n < builder->BakedPool.Size; baked_n++)
4050	for (ImFontGlyph& glyph : builder->BakedPool[baked_n].Glyphs)
4051	if (glyph.PackId != ImFontAtlasRectId_Invalid)
4052	{
4053	ImTextureRect* r = ImFontAtlasPackGetRect(atlas, id: glyph.PackId);
4054	glyph.U0 = (r->x) * atlas->TexUvScale.x;
4055	glyph.V0 = (r->y) * atlas->TexUvScale.y;
4056	glyph.U1 = (r->x + r->w) * atlas->TexUvScale.x;
4057	glyph.V1 = (r->y + r->h) * atlas->TexUvScale.y;
4058	}
4059
4060	// Update other cached UV
4061	ImFontAtlasBuildUpdateLinesTexData(atlas);
4062	ImFontAtlasBuildUpdateBasicTexData(atlas);
4063
4064	builder->LockDisableResize = false;
4065	ImFontAtlasUpdateDrawListsSharedData(atlas);
4066	//ImFontAtlasDebugWriteTexToDisk(new_tex, "After Pack");
4067	}
4068
4069	void ImFontAtlasTextureGrow(ImFontAtlas* atlas, int old_tex_w, int old_tex_h)
4070	{
4071	//ImFontAtlasDebugWriteTexToDisk(atlas->TexData, "Before Grow");
4072	ImFontAtlasBuilder* builder = atlas->Builder;
4073	if (old_tex_w == -1)
4074	old_tex_w = atlas->TexData->Width;
4075	if (old_tex_h == -1)
4076	old_tex_h = atlas->TexData->Height;
4077
4078	// FIXME-NEWATLAS-V2: What to do when reaching limits exposed by backend?
4079	// FIXME-NEWATLAS-V2: Does ImFontAtlasFlags_NoPowerOfTwoHeight makes sense now? Allow 'lock' and 'compact' operations?
4080	IM_ASSERT(ImIsPowerOfTwo(old_tex_w) && ImIsPowerOfTwo(old_tex_h));
4081	IM_ASSERT(ImIsPowerOfTwo(atlas->TexMinWidth) && ImIsPowerOfTwo(atlas->TexMaxWidth) && ImIsPowerOfTwo(atlas->TexMinHeight) && ImIsPowerOfTwo(atlas->TexMaxHeight));
4082
4083	// Grow texture so it follows roughly a square.
4084	// - Grow height before width, as width imply more packing nodes.
4085	// - Caller should be taking account of RectsDiscardedSurface and may not need to grow.
4086	int new_tex_w = (old_tex_h <= old_tex_w) ? old_tex_w : old_tex_w * 2;
4087	int new_tex_h = (old_tex_h <= old_tex_w) ? old_tex_h * 2 : old_tex_h;
4088
4089	// Handle minimum size first (for pathologically large packed rects)
4090	const int pack_padding = atlas->TexGlyphPadding;
4091	new_tex_w = ImMax(lhs: new_tex_w, rhs: ImUpperPowerOfTwo(v: builder->MaxRectSize.x + pack_padding));
4092	new_tex_h = ImMax(lhs: new_tex_h, rhs: ImUpperPowerOfTwo(v: builder->MaxRectSize.y + pack_padding));
4093	new_tex_w = ImClamp(v: new_tex_w, mn: atlas->TexMinWidth, mx: atlas->TexMaxWidth);
4094	new_tex_h = ImClamp(v: new_tex_h, mn: atlas->TexMinHeight, mx: atlas->TexMaxHeight);
4095	if (new_tex_w == old_tex_w && new_tex_h == old_tex_h)
4096	return;
4097
4098	ImFontAtlasTextureRepack(atlas, w: new_tex_w, h: new_tex_h);
4099	}
4100
4101	void ImFontAtlasTextureMakeSpace(ImFontAtlas* atlas)
4102	{
4103	// Can some baked contents be ditched?
4104	//IMGUI_DEBUG_LOG_FONT("[font] ImFontAtlasBuildMakeSpace()\n");
4105	ImFontAtlasBuilder* builder = atlas->Builder;
4106	ImFontAtlasBuildDiscardBakes(atlas, unused_frames: 2);
4107
4108	// Currently using a heuristic for repack without growing.
4109	if (builder->RectsDiscardedSurface < builder->RectsPackedSurface * 0.20f)
4110	ImFontAtlasTextureGrow(atlas);
4111	else
4112	ImFontAtlasTextureRepack(atlas, w: atlas->TexData->Width, h: atlas->TexData->Height);
4113	}
4114
4115	ImVec2i ImFontAtlasTextureGetSizeEstimate(ImFontAtlas* atlas)
4116	{
4117	int min_w = ImUpperPowerOfTwo(v: atlas->TexMinWidth);
4118	int min_h = ImUpperPowerOfTwo(v: atlas->TexMinHeight);
4119	if (atlas->Builder == NULL || atlas->TexData == NULL || atlas->TexData->Status == ImTextureStatus_WantDestroy)
4120	return ImVec2i(min_w, min_h);
4121
4122	ImFontAtlasBuilder* builder = atlas->Builder;
4123	min_w = ImMax(lhs: ImUpperPowerOfTwo(v: builder->MaxRectSize.x), rhs: min_w);
4124	min_h = ImMax(lhs: ImUpperPowerOfTwo(v: builder->MaxRectSize.y), rhs: min_h);
4125	const int surface_approx = builder->RectsPackedSurface - builder->RectsDiscardedSurface; // Expected surface after repack
4126	const int surface_sqrt = (int)sqrtf(x: (float)surface_approx);
4127
4128	int new_tex_w;
4129	int new_tex_h;
4130	if (min_w >= min_h)
4131	{
4132	new_tex_w = ImMax(lhs: min_w, rhs: ImUpperPowerOfTwo(v: surface_sqrt));
4133	new_tex_h = ImMax(lhs: min_h, rhs: (int)((surface_approx + new_tex_w - 1) / new_tex_w));
4134	if ((atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) == 0)
4135	new_tex_h = ImUpperPowerOfTwo(v: new_tex_h);
4136	}
4137	else
4138	{
4139	new_tex_h = ImMax(lhs: min_h, rhs: ImUpperPowerOfTwo(v: surface_sqrt));
4140	if ((atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) == 0)
4141	new_tex_h = ImUpperPowerOfTwo(v: new_tex_h);
4142	new_tex_w = ImMax(lhs: min_w, rhs: (int)((surface_approx + new_tex_h - 1) / new_tex_h));
4143	}
4144
4145	IM_ASSERT(ImIsPowerOfTwo(new_tex_w) && ImIsPowerOfTwo(new_tex_h));
4146	return ImVec2i(new_tex_w, new_tex_h);
4147	}
4148
4149	// Clear all output. Invalidates all AddCustomRect() return values!
4150	void ImFontAtlasBuildClear(ImFontAtlas* atlas)
4151	{
4152	ImVec2i new_tex_size = ImFontAtlasTextureGetSizeEstimate(atlas);
4153	ImFontAtlasBuildDestroy(atlas);
4154	ImFontAtlasTextureAdd(atlas, w: new_tex_size.x, h: new_tex_size.y);
4155	ImFontAtlasBuildInit(atlas);
4156	for (ImFontConfig& src : atlas->Sources)
4157	ImFontAtlasFontSourceInit(atlas, src: &src);
4158	for (ImFont* font : atlas->Fonts)
4159	for (ImFontConfig* src : font->Sources)
4160	ImFontAtlasFontSourceAddToFont(atlas, font, src);
4161	}
4162
4163	// You should not need to call this manually!
4164	// If you think you do, let us know and we can advise about policies auto-compact.
4165	void ImFontAtlasTextureCompact(ImFontAtlas* atlas)
4166	{
4167	ImFontAtlasBuilder* builder = atlas->Builder;
4168	ImFontAtlasBuildDiscardBakes(atlas, unused_frames: 1);
4169
4170	ImTextureData* old_tex = atlas->TexData;
4171	ImVec2i old_tex_size = ImVec2i(old_tex->Width, old_tex->Height);
4172	ImVec2i new_tex_size = ImFontAtlasTextureGetSizeEstimate(atlas);
4173	if (builder->RectsDiscardedCount == 0 && new_tex_size.x == old_tex_size.x && new_tex_size.y == old_tex_size.y)
4174	return;
4175
4176	ImFontAtlasTextureRepack(atlas, w: new_tex_size.x, h: new_tex_size.y);
4177	}
4178
4179	// Start packing over current empty texture
4180	void ImFontAtlasBuildInit(ImFontAtlas* atlas)
4181	{
4182	// Select Backend
4183	// - Note that we do not reassign to atlas->FontLoader, since it is likely to point to static data which
4184	// may mess with some hot-reloading schemes. If you need to assign to this (for dynamic selection) AND are
4185	// using a hot-reloading scheme that messes up static data, store your own instance of FontLoader somewhere
4186	// and point to it instead of pointing directly to return value of the GetFontLoaderXXX functions.
4187	if (atlas->FontLoader == NULL)
4188	{
4189	#ifdef IMGUI_ENABLE_FREETYPE
4190	atlas->SetFontLoader(ImGuiFreeType::GetFontLoader());
4191	#elif defined(IMGUI_ENABLE_STB_TRUETYPE)
4192	atlas->SetFontLoader(ImFontAtlasGetFontLoaderForStbTruetype());
4193	#else
4194	IM_ASSERT(0); // Invalid Build function
4195	#endif
4196	}
4197
4198	// Create initial texture size
4199	if (atlas->TexData == NULL || atlas->TexData->Pixels == NULL)
4200	ImFontAtlasTextureAdd(atlas, w: ImUpperPowerOfTwo(v: atlas->TexMinWidth), h: ImUpperPowerOfTwo(v: atlas->TexMinHeight));
4201
4202	atlas->Builder = IM_NEW(ImFontAtlasBuilder)();
4203	if (atlas->FontLoader->LoaderInit)
4204	atlas->FontLoader->LoaderInit(atlas);
4205
4206	ImFontAtlasBuildUpdateRendererHasTexturesFromContext(atlas);
4207
4208	ImFontAtlasPackInit(atlas);
4209
4210	// Add required texture data
4211	ImFontAtlasBuildUpdateLinesTexData(atlas);
4212	ImFontAtlasBuildUpdateBasicTexData(atlas);
4213
4214	// Register fonts
4215	ImFontAtlasBuildUpdatePointers(atlas);
4216
4217	// Update UV coordinates etc. stored in bound ImDrawListSharedData instance
4218	ImFontAtlasUpdateDrawListsSharedData(atlas);
4219
4220	//atlas->TexIsBuilt = true;
4221	}
4222
4223	// Destroy builder and all cached glyphs. Do not destroy actual fonts.
4224	void ImFontAtlasBuildDestroy(ImFontAtlas* atlas)
4225	{
4226	for (ImFont* font : atlas->Fonts)
4227	ImFontAtlasFontDestroyOutput(atlas, font);
4228	if (atlas->Builder && atlas->FontLoader && atlas->FontLoader->LoaderShutdown)
4229	{
4230	atlas->FontLoader->LoaderShutdown(atlas);
4231	IM_ASSERT(atlas->FontLoaderData == NULL);
4232	}
4233	IM_DELETE(p: atlas->Builder);
4234	atlas->Builder = NULL;
4235	}
4236
4237	void ImFontAtlasPackInit(ImFontAtlas * atlas)
4238	{
4239	ImTextureData* tex = atlas->TexData;
4240	ImFontAtlasBuilder* builder = atlas->Builder;
4241
4242	// In theory we could decide to reduce the number of nodes, e.g. halve them, and waste a little texture space, but it doesn't seem worth it.
4243	const int pack_node_count = tex->Width / 2;
4244	builder->PackNodes.resize(new_size: pack_node_count);
4245	IM_STATIC_ASSERT(sizeof(stbrp_context) <= sizeof(stbrp_context_opaque));
4246	stbrp_init_target(context: (stbrp_context*)(void*)&builder->PackContext, width: tex->Width, height: tex->Height, nodes: builder->PackNodes.Data, num_nodes: builder->PackNodes.Size);
4247	builder->RectsPackedSurface = builder->RectsPackedCount = 0;
4248	builder->MaxRectSize = ImVec2i(0, 0);
4249	builder->MaxRectBounds = ImVec2i(0, 0);
4250	}
4251
4252	// This is essentially a free-list pattern, it may be nice to wrap it into a dedicated type.
4253	static ImFontAtlasRectId ImFontAtlasPackAllocRectEntry(ImFontAtlas* atlas, int rect_idx)
4254	{
4255	ImFontAtlasBuilder* builder = (ImFontAtlasBuilder*)atlas->Builder;
4256	int index_idx;
4257	ImFontAtlasRectEntry* index_entry;
4258	if (builder->RectsIndexFreeListStart < 0)
4259	{
4260	builder->RectsIndex.resize(new_size: builder->RectsIndex.Size + 1);
4261	index_idx = builder->RectsIndex.Size - 1;
4262	index_entry = &builder->RectsIndex[index_idx];
4263	memset(s: index_entry, c: 0, n: sizeof(*index_entry));
4264	}
4265	else
4266	{
4267	index_idx = builder->RectsIndexFreeListStart;
4268	index_entry = &builder->RectsIndex[index_idx];
4269	IM_ASSERT(index_entry->IsUsed == false && index_entry->Generation > 0); // Generation is incremented during DiscardRect
4270	builder->RectsIndexFreeListStart = index_entry->TargetIndex;
4271	}
4272	index_entry->TargetIndex = rect_idx;
4273	index_entry->IsUsed = 1;
4274	return ImFontAtlasRectId_Make(index_idx, gen_idx: index_entry->Generation);
4275	}
4276
4277	// Overwrite existing entry
4278	static ImFontAtlasRectId ImFontAtlasPackReuseRectEntry(ImFontAtlas* atlas, ImFontAtlasRectEntry* index_entry)
4279	{
4280	IM_ASSERT(index_entry->IsUsed);
4281	index_entry->TargetIndex = atlas->Builder->Rects.Size - 1;
4282	int index_idx = atlas->Builder->RectsIndex.index_from_ptr(it: index_entry);
4283	return ImFontAtlasRectId_Make(index_idx, gen_idx: index_entry->Generation);
4284	}
4285
4286	// This is expected to be called in batches and followed by a repack
4287	void ImFontAtlasPackDiscardRect(ImFontAtlas* atlas, ImFontAtlasRectId id)
4288	{
4289	IM_ASSERT(id != ImFontAtlasRectId_Invalid);
4290
4291	ImTextureRect* rect = ImFontAtlasPackGetRect(atlas, id);
4292	if (rect == NULL)
4293	return;
4294
4295	ImFontAtlasBuilder* builder = atlas->Builder;
4296	int index_idx = ImFontAtlasRectId_GetIndex(id);
4297	ImFontAtlasRectEntry* index_entry = &builder->RectsIndex[index_idx];
4298	IM_ASSERT(index_entry->IsUsed && index_entry->TargetIndex >= 0);
4299	index_entry->IsUsed = false;
4300	index_entry->TargetIndex = builder->RectsIndexFreeListStart;
4301	index_entry->Generation++;
4302
4303	const int pack_padding = atlas->TexGlyphPadding;
4304	builder->RectsIndexFreeListStart = index_idx;
4305	builder->RectsDiscardedCount++;
4306	builder->RectsDiscardedSurface += (rect->w + pack_padding) * (rect->h + pack_padding);
4307	rect->w = rect->h = 0; // Clear rectangle so it won't be packed again
4308	}
4309
4310	// Important: Calling this may recreate a new texture and therefore change atlas->TexData
4311	// FIXME-NEWFONTS: Expose other glyph padding settings for custom alteration (e.g. drop shadows). See #7962
4312	ImFontAtlasRectId ImFontAtlasPackAddRect(ImFontAtlas* atlas, int w, int h, ImFontAtlasRectEntry* overwrite_entry)
4313	{
4314	IM_ASSERT(w > 0 && w <= 0xFFFF);
4315	IM_ASSERT(h > 0 && h <= 0xFFFF);
4316
4317	ImFontAtlasBuilder* builder = (ImFontAtlasBuilder*)atlas->Builder;
4318	const int pack_padding = atlas->TexGlyphPadding;
4319	builder->MaxRectSize.x = ImMax(lhs: builder->MaxRectSize.x, rhs: w);
4320	builder->MaxRectSize.y = ImMax(lhs: builder->MaxRectSize.y, rhs: h);
4321
4322	// Pack
4323	ImTextureRect r = { .x: 0, .y: 0, .w: (unsigned short)w, .h: (unsigned short)h };
4324	for (int attempts_remaining = 3; attempts_remaining >= 0; attempts_remaining--)
4325	{
4326	// Try packing
4327	stbrp_rect pack_r = {};
4328	pack_r.w = w + pack_padding;
4329	pack_r.h = h + pack_padding;
4330	stbrp_pack_rects(context: (stbrp_context*)(void*)&builder->PackContext, rects: &pack_r, num_rects: 1);
4331	r.x = (unsigned short)pack_r.x;
4332	r.y = (unsigned short)pack_r.y;
4333	if (pack_r.was_packed)
4334	break;
4335
4336	// If we ran out of attempts, return fallback
4337	if (attempts_remaining == 0 || builder->LockDisableResize)
4338	{
4339	IMGUI_DEBUG_LOG_FONT("[font] Failed packing %dx%d rectangle. Returning fallback.\n", w, h);
4340	return ImFontAtlasRectId_Invalid;
4341	}
4342
4343	// Resize or repack atlas! (this should be a rare event)
4344	ImFontAtlasTextureMakeSpace(atlas);
4345	}
4346
4347	builder->MaxRectBounds.x = ImMax(lhs: builder->MaxRectBounds.x, rhs: r.x + r.w + pack_padding);
4348	builder->MaxRectBounds.y = ImMax(lhs: builder->MaxRectBounds.y, rhs: r.y + r.h + pack_padding);
4349	builder->RectsPackedCount++;
4350	builder->RectsPackedSurface += (w + pack_padding) * (h + pack_padding);
4351
4352	builder->Rects.push_back(v: r);
4353	if (overwrite_entry != NULL)
4354	return ImFontAtlasPackReuseRectEntry(atlas, index_entry: overwrite_entry); // Write into an existing entry instead of adding one (used during repack)
4355	else
4356	return ImFontAtlasPackAllocRectEntry(atlas, rect_idx: builder->Rects.Size - 1);
4357	}
4358
4359	// Generally for non-user facing functions: assert on invalid ID.
4360	ImTextureRect* ImFontAtlasPackGetRect(ImFontAtlas* atlas, ImFontAtlasRectId id)
4361	{
4362	IM_ASSERT(id != ImFontAtlasRectId_Invalid);
4363	int index_idx = ImFontAtlasRectId_GetIndex(id);
4364	ImFontAtlasBuilder* builder = (ImFontAtlasBuilder*)atlas->Builder;
4365	ImFontAtlasRectEntry* index_entry = &builder->RectsIndex[index_idx];
4366	IM_ASSERT(index_entry->Generation == ImFontAtlasRectId_GetGeneration(id));
4367	IM_ASSERT(index_entry->IsUsed);
4368	return &builder->Rects[index_entry->TargetIndex];
4369	}
4370
4371	// For user-facing functions: return NULL on invalid ID.
4372	// Important: return pointer is valid until next call to AddRect(), e.g. FindGlyph(), CalcTextSize() can all potentially invalidate previous pointers.
4373	ImTextureRect* ImFontAtlasPackGetRectSafe(ImFontAtlas* atlas, ImFontAtlasRectId id)
4374	{
4375	if (id == ImFontAtlasRectId_Invalid)
4376	return NULL;
4377	int index_idx = ImFontAtlasRectId_GetIndex(id);
4378	if (atlas->Builder == NULL)
4379	ImFontAtlasBuildInit(atlas);
4380	ImFontAtlasBuilder* builder = (ImFontAtlasBuilder*)atlas->Builder;
4381	IM_MSVC_WARNING_SUPPRESS(28182); // Static Analysis false positive "warning C28182: Dereferencing NULL pointer 'builder'"
4382	if (index_idx >= builder->RectsIndex.Size)
4383	return NULL;
4384	ImFontAtlasRectEntry* index_entry = &builder->RectsIndex[index_idx];
4385	if (index_entry->Generation != ImFontAtlasRectId_GetGeneration(id) || !index_entry->IsUsed)
4386	return NULL;
4387	return &builder->Rects[index_entry->TargetIndex];
4388	}
4389
4390	// Important! This assume by ImFontConfig::GlyphExcludeRanges[] is a SMALL ARRAY (e.g. <10 entries)
4391	// Use "Input Glyphs Overlap Detection Tool" to display a list of glyphs provided by multiple sources in order to set this array up.
4392	static bool ImFontAtlasBuildAcceptCodepointForSource(ImFontConfig* src, ImWchar codepoint)
4393	{
4394	if (const ImWchar* exclude_list = src->GlyphExcludeRanges)
4395	for (; exclude_list[0] != 0; exclude_list += 2)
4396	if (codepoint >= exclude_list[0] && codepoint <= exclude_list[1])
4397	return false;
4398	return true;
4399	}
4400
4401	static void ImFontBaked_BuildGrowIndex(ImFontBaked* baked, int new_size)
4402	{
4403	IM_ASSERT(baked->IndexAdvanceX.Size == baked->IndexLookup.Size);
4404	if (new_size <= baked->IndexLookup.Size)
4405	return;
4406	baked->IndexAdvanceX.resize(new_size, v: -1.0f);
4407	baked->IndexLookup.resize(new_size, IM_FONTGLYPH_INDEX_UNUSED);
4408	}
4409
4410	static void ImFontAtlas_FontHookRemapCodepoint(ImFontAtlas* atlas, ImFont* font, ImWchar* c)
4411	{
4412	IM_UNUSED(atlas);
4413	if (font->RemapPairs.Data.Size != 0)
4414	*c = (ImWchar)font->RemapPairs.GetInt(key: (ImGuiID)*c, default_val: (int)*c);
4415	}
4416
4417	static ImFontGlyph* ImFontBaked_BuildLoadGlyph(ImFontBaked* baked, ImWchar codepoint, float* only_load_advance_x)
4418	{
4419	ImFont* font = baked->ContainerFont;
4420	ImFontAtlas* atlas = font->ContainerAtlas;
4421	if (atlas->Locked || (font->Flags & ImFontFlags_NoLoadGlyphs))
4422	{
4423	// Lazily load fallback glyph
4424	if (baked->FallbackGlyphIndex == -1 && baked->LoadNoFallback == 0)
4425	ImFontAtlasBuildSetupFontBakedFallback(baked);
4426	return NULL;
4427	}
4428
4429	// User remapping hooks
4430	ImWchar src_codepoint = codepoint;
4431	ImFontAtlas_FontHookRemapCodepoint(atlas, font, c: &codepoint);
4432
4433	//char utf8_buf[5];
4434	//IMGUI_DEBUG_LOG("[font] BuildLoadGlyph U+%04X (%s)\n", (unsigned int)codepoint, ImTextCharToUtf8(utf8_buf, (unsigned int)codepoint));
4435
4436	// Special hook
4437	// FIXME-NEWATLAS: it would be nicer if this used a more standardized way of hooking
4438	if (codepoint == font->EllipsisChar && font->EllipsisAutoBake)
4439	if (ImFontGlyph* glyph = ImFontAtlasBuildSetupFontBakedEllipsis(atlas, baked))
4440	return glyph;
4441
4442	// Call backend
4443	char* loader_user_data_p = (char*)baked->FontLoaderDatas;
4444	int src_n = 0;
4445	for (ImFontConfig* src : font->Sources)
4446	{
4447	const ImFontLoader* loader = src->FontLoader ? src->FontLoader : atlas->FontLoader;
4448	if (!src->GlyphExcludeRanges || ImFontAtlasBuildAcceptCodepointForSource(src, codepoint))
4449	{
4450	if (only_load_advance_x == NULL)
4451	{
4452	ImFontGlyph glyph_buf;
4453	if (loader->FontBakedLoadGlyph(atlas, src, baked, loader_user_data_p, codepoint, &glyph_buf, NULL))
4454	{
4455	// FIXME: Add hooks for e.g. #7962
4456	glyph_buf.Codepoint = src_codepoint;
4457	glyph_buf.SourceIdx = src_n;
4458	return ImFontAtlasBakedAddFontGlyph(atlas, baked, src, in_glyph: &glyph_buf);
4459	}
4460	}
4461	else
4462	{
4463	// Special mode but only loading glyphs metrics. Will rasterize and pack later.
4464	if (loader->FontBakedLoadGlyph(atlas, src, baked, loader_user_data_p, codepoint, NULL, only_load_advance_x))
4465	{
4466	ImFontAtlasBakedAddFontGlyphAdvancedX(atlas, baked, src, codepoint, advance_x: *only_load_advance_x);
4467	return NULL;
4468	}
4469	}
4470	}
4471	loader_user_data_p += loader->FontBakedSrcLoaderDataSize;
4472	src_n++;
4473	}
4474
4475	// Lazily load fallback glyph
4476	if (baked->LoadNoFallback)
4477	return NULL;
4478	if (baked->FallbackGlyphIndex == -1)
4479	ImFontAtlasBuildSetupFontBakedFallback(baked);
4480
4481	// Mark index as not found, so we don't attempt the search twice
4482	ImFontBaked_BuildGrowIndex(baked, new_size: codepoint + 1);
4483	baked->IndexAdvanceX[codepoint] = baked->FallbackAdvanceX;
4484	baked->IndexLookup[codepoint] = IM_FONTGLYPH_INDEX_NOT_FOUND;
4485	return NULL;
4486	}
4487
4488	static float ImFontBaked_BuildLoadGlyphAdvanceX(ImFontBaked* baked, ImWchar codepoint)
4489	{
4490	if (baked->Size >= IMGUI_FONT_SIZE_THRESHOLD_FOR_LOADADVANCEXONLYMODE || baked->LoadNoRenderOnLayout)
4491	{
4492	// First load AdvanceX value used by CalcTextSize() API then load the rest when loaded by drawing API.
4493	float only_advance_x = 0.0f;
4494	ImFontGlyph* glyph = ImFontBaked_BuildLoadGlyph(baked, codepoint: (ImWchar)codepoint, only_load_advance_x: &only_advance_x);
4495	return glyph ? glyph->AdvanceX : only_advance_x;
4496	}
4497	else
4498	{
4499	ImFontGlyph* glyph = ImFontBaked_BuildLoadGlyph(baked, codepoint: (ImWchar)codepoint, NULL);
4500	return glyph ? glyph->AdvanceX : baked->FallbackAdvanceX;
4501	}
4502	}
4503
4504	// The point of this indirection is to not be inlined in debug mode in order to not bloat inner loop.b
4505	IM_MSVC_RUNTIME_CHECKS_OFF
4506	static float BuildLoadGlyphGetAdvanceOrFallback(ImFontBaked* baked, unsigned int codepoint)
4507	{
4508	return ImFontBaked_BuildLoadGlyphAdvanceX(baked, codepoint: (ImWchar)codepoint);
4509	}
4510	IM_MSVC_RUNTIME_CHECKS_RESTORE
4511
4512	#ifndef IMGUI_DISABLE_DEBUG_TOOLS
4513	void ImFontAtlasDebugLogTextureRequests(ImFontAtlas* atlas)
4514	{
4515	// [DEBUG] Log texture update requests
4516	ImGuiContext& g = *GImGui;
4517	IM_UNUSED(g);
4518	for (ImTextureData* tex : atlas->TexList)
4519	{
4520	if ((g.IO.BackendFlags & ImGuiBackendFlags_RendererHasTextures) == 0)
4521	IM_ASSERT(tex->Updates.Size == 0);
4522	if (tex->Status == ImTextureStatus_WantCreate)
4523	IMGUI_DEBUG_LOG_FONT("[font] Texture #%03d: create %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
4524	else if (tex->Status == ImTextureStatus_WantDestroy)
4525	IMGUI_DEBUG_LOG_FONT("[font] Texture #%03d: destroy %dx%d, texid=0x%" IM_PRIX64 ", backend_data=%p\n", tex->UniqueID, tex->Width, tex->Height, tex->TexID, tex->BackendUserData);
4526	else if (tex->Status == ImTextureStatus_WantUpdates)
4527	{
4528	IMGUI_DEBUG_LOG_FONT("[font] Texture #%03d: update %d regions, texid=0x%" IM_PRIX64 ", backend_data=0x%" IM_PRIX64 "\n", tex->UniqueID, tex->Updates.Size, tex->TexID, (ImU64)(intptr_t)tex->BackendUserData);
4529	for (const ImTextureRect& r : tex->Updates)
4530	{
4531	IM_UNUSED(r);
4532	IM_ASSERT(r.x >= 0 && r.y >= 0);
4533	IM_ASSERT(r.x + r.w <= tex->Width && r.y + r.h <= tex->Height); // In theory should subtract PackPadding but it's currently part of atlas and mid-frame change would wreck assert.
4534	//IMGUI_DEBUG_LOG_FONT("[font] Texture #%03d: update (% 4d..%-4d)->(% 4d..%-4d), texid=0x%" IM_PRIX64 ", backend_data=0x%" IM_PRIX64 "\n", tex->UniqueID, r.x, r.y, r.x + r.w, r.y + r.h, tex->TexID, (ImU64)(intptr_t)tex->BackendUserData);
4535	}
4536	}
4537	}
4538	}
4539	#endif
4540
4541	//-------------------------------------------------------------------------
4542	// [SECTION] ImFontAtlas: backend for stb_truetype
4543	//-------------------------------------------------------------------------
4544	// (imstb_truetype.h in included near the top of this file, when IMGUI_ENABLE_STB_TRUETYPE is set)
4545	//-------------------------------------------------------------------------
4546
4547	#ifdef IMGUI_ENABLE_STB_TRUETYPE
4548
4549	// One for each ConfigData
4550	struct ImGui_ImplStbTrueType_FontSrcData
4551	{
4552	stbtt_fontinfo FontInfo;
4553	float ScaleFactor;
4554	};
4555
4556	static bool ImGui_ImplStbTrueType_FontSrcInit(ImFontAtlas* atlas, ImFontConfig* src)
4557	{
4558	IM_UNUSED(atlas);
4559
4560	ImGui_ImplStbTrueType_FontSrcData* bd_font_data = IM_NEW(ImGui_ImplStbTrueType_FontSrcData);
4561	IM_ASSERT(src->FontLoaderData == NULL);
4562
4563	// Initialize helper structure for font loading and verify that the TTF/OTF data is correct
4564	const int font_offset = stbtt_GetFontOffsetForIndex(data: (unsigned char*)src->FontData, index: src->FontNo);
4565	if (font_offset < 0)
4566	{
4567	IM_DELETE(p: bd_font_data);
4568	IM_ASSERT_USER_ERROR(0, "stbtt_GetFontOffsetForIndex(): FontData is incorrect, or FontNo cannot be found.");
4569	return false;
4570	}
4571	if (!stbtt_InitFont(info: &bd_font_data->FontInfo, data: (unsigned char*)src->FontData, offset: font_offset))
4572	{
4573	IM_DELETE(p: bd_font_data);
4574	IM_ASSERT_USER_ERROR(0, "stbtt_InitFont(): failed to parse FontData. It is correct and complete? Check FontDataSize.");
4575	return false;
4576	}
4577	src->FontLoaderData = bd_font_data;
4578
4579	const float ref_size = src->DstFont->Sources[0]->SizePixels;
4580	if (src->MergeMode && src->SizePixels == 0.0f)
4581	src->SizePixels = ref_size;
4582
4583	if (src->SizePixels >= 0.0f)
4584	bd_font_data->ScaleFactor = stbtt_ScaleForPixelHeight(info: &bd_font_data->FontInfo, height: 1.0f);
4585	else
4586	bd_font_data->ScaleFactor = stbtt_ScaleForMappingEmToPixels(info: &bd_font_data->FontInfo, pixels: 1.0f);
4587	if (src->MergeMode && src->SizePixels != 0.0f && ref_size != 0.0f)
4588	bd_font_data->ScaleFactor *= src->SizePixels / ref_size; // FIXME-NEWATLAS: Should tidy up that a bit
4589
4590	return true;
4591	}
4592
4593	static void ImGui_ImplStbTrueType_FontSrcDestroy(ImFontAtlas* atlas, ImFontConfig* src)
4594	{
4595	IM_UNUSED(atlas);
4596	ImGui_ImplStbTrueType_FontSrcData* bd_font_data = (ImGui_ImplStbTrueType_FontSrcData*)src->FontLoaderData;
4597	IM_DELETE(p: bd_font_data);
4598	src->FontLoaderData = NULL;
4599	}
4600
4601	static bool ImGui_ImplStbTrueType_FontSrcContainsGlyph(ImFontAtlas* atlas, ImFontConfig* src, ImWchar codepoint)
4602	{
4603	IM_UNUSED(atlas);
4604
4605	ImGui_ImplStbTrueType_FontSrcData* bd_font_data = (ImGui_ImplStbTrueType_FontSrcData*)src->FontLoaderData;
4606	IM_ASSERT(bd_font_data != NULL);
4607
4608	int glyph_index = stbtt_FindGlyphIndex(info: &bd_font_data->FontInfo, unicode_codepoint: (int)codepoint);
4609	return glyph_index != 0;
4610	}
4611
4612	static bool ImGui_ImplStbTrueType_FontBakedInit(ImFontAtlas* atlas, ImFontConfig* src, ImFontBaked* baked, void*)
4613	{
4614	IM_UNUSED(atlas);
4615
4616	ImGui_ImplStbTrueType_FontSrcData* bd_font_data = (ImGui_ImplStbTrueType_FontSrcData*)src->FontLoaderData;
4617	if (src->MergeMode == false)
4618	{
4619	// FIXME-NEWFONTS: reevaluate how to use sizing metrics
4620	// FIXME-NEWFONTS: make use of line gap value
4621	float scale_for_layout = bd_font_data->ScaleFactor * baked->Size;
4622	int unscaled_ascent, unscaled_descent, unscaled_line_gap;
4623	stbtt_GetFontVMetrics(info: &bd_font_data->FontInfo, ascent: &unscaled_ascent, descent: &unscaled_descent, lineGap: &unscaled_line_gap);
4624	baked->Ascent = ImCeil(unscaled_ascent * scale_for_layout);
4625	baked->Descent = ImFloor(f: unscaled_descent * scale_for_layout);
4626	}
4627	return true;
4628	}
4629
4630	static bool ImGui_ImplStbTrueType_FontBakedLoadGlyph(ImFontAtlas* atlas, ImFontConfig* src, ImFontBaked* baked, void*, ImWchar codepoint, ImFontGlyph* out_glyph, float* out_advance_x)
4631	{
4632	// Search for first font which has the glyph
4633	ImGui_ImplStbTrueType_FontSrcData* bd_font_data = (ImGui_ImplStbTrueType_FontSrcData*)src->FontLoaderData;
4634	IM_ASSERT(bd_font_data);
4635	int glyph_index = stbtt_FindGlyphIndex(info: &bd_font_data->FontInfo, unicode_codepoint: (int)codepoint);
4636	if (glyph_index == 0)
4637	return false;
4638
4639	// Fonts unit to pixels
4640	int oversample_h, oversample_v;
4641	ImFontAtlasBuildGetOversampleFactors(src, baked, out_oversample_h: &oversample_h, out_oversample_v: &oversample_v);
4642	const float scale_for_layout = bd_font_data->ScaleFactor * baked->Size;
4643	const float rasterizer_density = src->RasterizerDensity * baked->RasterizerDensity;
4644	const float scale_for_raster_x = bd_font_data->ScaleFactor * baked->Size * rasterizer_density * oversample_h;
4645	const float scale_for_raster_y = bd_font_data->ScaleFactor * baked->Size * rasterizer_density * oversample_v;
4646
4647	// Obtain size and advance
4648	int x0, y0, x1, y1;
4649	int advance, lsb;
4650	stbtt_GetGlyphBitmapBoxSubpixel(font: &bd_font_data->FontInfo, glyph: glyph_index, scale_x: scale_for_raster_x, scale_y: scale_for_raster_y, shift_x: 0, shift_y: 0, ix0: &x0, iy0: &y0, ix1: &x1, iy1: &y1);
4651	stbtt_GetGlyphHMetrics(info: &bd_font_data->FontInfo, glyph_index, advanceWidth: &advance, leftSideBearing: &lsb);
4652
4653	// Load metrics only mode
4654	if (out_advance_x != NULL)
4655	{
4656	IM_ASSERT(out_glyph == NULL);
4657	*out_advance_x = advance * scale_for_layout;
4658	return true;
4659	}
4660
4661	// Prepare glyph
4662	out_glyph->Codepoint = codepoint;
4663	out_glyph->AdvanceX = advance * scale_for_layout;
4664
4665	// Pack and retrieve position inside texture atlas
4666	// (generally based on stbtt_PackFontRangesRenderIntoRects)
4667	const bool is_visible = (x0 != x1 && y0 != y1);
4668	if (is_visible)
4669	{
4670	const int w = (x1 - x0 + oversample_h - 1);
4671	const int h = (y1 - y0 + oversample_v - 1);
4672	ImFontAtlasRectId pack_id = ImFontAtlasPackAddRect(atlas, w, h);
4673	if (pack_id == ImFontAtlasRectId_Invalid)
4674	{
4675	// Pathological out of memory case (TexMaxWidth/TexMaxHeight set too small?)
4676	IM_ASSERT(pack_id != ImFontAtlasRectId_Invalid && "Out of texture memory.");
4677	return false;
4678	}
4679	ImTextureRect* r = ImFontAtlasPackGetRect(atlas, id: pack_id);
4680
4681	// Render
4682	stbtt_GetGlyphBitmapBox(font: &bd_font_data->FontInfo, glyph: glyph_index, scale_x: scale_for_raster_x, scale_y: scale_for_raster_y, ix0: &x0, iy0: &y0, ix1: &x1, iy1: &y1);
4683	ImFontAtlasBuilder* builder = atlas->Builder;
4684	builder->TempBuffer.resize(new_size: w * h * 1);
4685	unsigned char* bitmap_pixels = builder->TempBuffer.Data;
4686	memset(s: bitmap_pixels, c: 0, n: w * h * 1);
4687
4688	// Render with oversampling
4689	// (those functions conveniently assert if pixels are not cleared, which is another safety layer)
4690	float sub_x, sub_y;
4691	stbtt_MakeGlyphBitmapSubpixelPrefilter(info: &bd_font_data->FontInfo, output: bitmap_pixels, out_w: w, out_h: h, out_stride: w,
4692	scale_x: scale_for_raster_x, scale_y: scale_for_raster_y, shift_x: 0, shift_y: 0, prefilter_x: oversample_h, prefilter_y: oversample_v, sub_x: &sub_x, sub_y: &sub_y, glyph: glyph_index);
4693
4694	const float ref_size = baked->ContainerFont->Sources[0]->SizePixels;
4695	const float offsets_scale = (ref_size != 0.0f) ? (baked->Size / ref_size) : 1.0f;
4696	float font_off_x = (src->GlyphOffset.x * offsets_scale);
4697	float font_off_y = (src->GlyphOffset.y * offsets_scale);
4698	if (src->PixelSnapH) // Snap scaled offset. This is to mitigate backward compatibility issues for GlyphOffset, but a better design would be welcome.
4699	font_off_x = IM_ROUND(font_off_x);
4700	if (src->PixelSnapV)
4701	font_off_y = IM_ROUND(font_off_y);
4702	font_off_x += sub_x;
4703	font_off_y += sub_y + IM_ROUND(baked->Ascent);
4704	float recip_h = 1.0f / (oversample_h * rasterizer_density);
4705	float recip_v = 1.0f / (oversample_v * rasterizer_density);
4706
4707	// Register glyph
4708	// r->x r->y are coordinates inside texture (in pixels)
4709	// glyph.X0, glyph.Y0 are drawing coordinates from base text position, and accounting for oversampling.
4710	out_glyph->X0 = x0 * recip_h + font_off_x;
4711	out_glyph->Y0 = y0 * recip_v + font_off_y;
4712	out_glyph->X1 = (x0 + (int)r->w) * recip_h + font_off_x;
4713	out_glyph->Y1 = (y0 + (int)r->h) * recip_v + font_off_y;
4714	out_glyph->Visible = true;
4715	out_glyph->PackId = pack_id;
4716	ImFontAtlasBakedSetFontGlyphBitmap(atlas, baked, src, glyph: out_glyph, r, src_pixels: bitmap_pixels, src_fmt: ImTextureFormat_Alpha8, src_pitch: w);
4717	}
4718
4719	return true;
4720	}
4721
4722	const ImFontLoader* ImFontAtlasGetFontLoaderForStbTruetype()
4723	{
4724	static ImFontLoader loader;
4725	loader.Name = "stb_truetype";
4726	loader.FontSrcInit = ImGui_ImplStbTrueType_FontSrcInit;
4727	loader.FontSrcDestroy = ImGui_ImplStbTrueType_FontSrcDestroy;
4728	loader.FontSrcContainsGlyph = ImGui_ImplStbTrueType_FontSrcContainsGlyph;
4729	loader.FontBakedInit = ImGui_ImplStbTrueType_FontBakedInit;
4730	loader.FontBakedDestroy = NULL;
4731	loader.FontBakedLoadGlyph = ImGui_ImplStbTrueType_FontBakedLoadGlyph;
4732	return &loader;
4733	}
4734
4735	#endif // IMGUI_ENABLE_STB_TRUETYPE
4736
4737	//-------------------------------------------------------------------------
4738	// [SECTION] ImFontAtlas: glyph ranges helpers
4739	//-------------------------------------------------------------------------
4740	// - GetGlyphRangesDefault()
4741	// Obsolete functions since 1.92:
4742	// - GetGlyphRangesGreek()
4743	// - GetGlyphRangesKorean()
4744	// - GetGlyphRangesChineseFull()
4745	// - GetGlyphRangesChineseSimplifiedCommon()
4746	// - GetGlyphRangesJapanese()
4747	// - GetGlyphRangesCyrillic()
4748	// - GetGlyphRangesThai()
4749	// - GetGlyphRangesVietnamese()
4750	//-----------------------------------------------------------------------------
4751
4752	// Retrieve list of range (2 int per range, values are inclusive)
4753	const ImWchar* ImFontAtlas::GetGlyphRangesDefault()
4754	{
4755	static const ImWchar ranges[] =
4756	{
4757	0x0020, 0x00FF, // Basic Latin + Latin Supplement
4758	0,
4759	};
4760	return &ranges[0];
4761	}
4762
4763	#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
4764	const ImWchar* ImFontAtlas::GetGlyphRangesGreek()
4765	{
4766	static const ImWchar ranges[] =
4767	{
4768	0x0020, 0x00FF, // Basic Latin + Latin Supplement
4769	0x0370, 0x03FF, // Greek and Coptic
4770	0,
4771	};
4772	return &ranges[0];
4773	}
4774
4775	const ImWchar* ImFontAtlas::GetGlyphRangesKorean()
4776	{
4777	static const ImWchar ranges[] =
4778	{
4779	0x0020, 0x00FF, // Basic Latin + Latin Supplement
4780	0x3131, 0x3163, // Korean alphabets
4781	0xAC00, 0xD7A3, // Korean characters
4782	0xFFFD, 0xFFFD, // Invalid
4783	0,
4784	};
4785	return &ranges[0];
4786	}
4787
4788	const ImWchar* ImFontAtlas::GetGlyphRangesChineseFull()
4789	{
4790	static const ImWchar ranges[] =
4791	{
4792	0x0020, 0x00FF, // Basic Latin + Latin Supplement
4793	0x2000, 0x206F, // General Punctuation
4794	0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
4795	0x31F0, 0x31FF, // Katakana Phonetic Extensions
4796	0xFF00, 0xFFEF, // Half-width characters
4797	0xFFFD, 0xFFFD, // Invalid
4798	0x4e00, 0x9FAF, // CJK Ideograms
4799	0,
4800	};
4801	return &ranges[0];
4802	}
4803
4804	static void UnpackAccumulativeOffsetsIntoRanges(int base_codepoint, const short* accumulative_offsets, int accumulative_offsets_count, ImWchar* out_ranges)
4805	{
4806	for (int n = 0; n < accumulative_offsets_count; n++, out_ranges += 2)
4807	{
4808	out_ranges[0] = out_ranges[1] = (ImWchar)(base_codepoint + accumulative_offsets[n]);
4809	base_codepoint += accumulative_offsets[n];
4810	}
4811	out_ranges[0] = 0;
4812	}
4813
4814	const ImWchar* ImFontAtlas::GetGlyphRangesChineseSimplifiedCommon()
4815	{
4816	// Store 2500 regularly used characters for Simplified Chinese.
4817	// Sourced from https://zh.wiktionary.org/wiki/%E9%99%84%E5%BD%95:%E7%8E%B0%E4%BB%A3%E6%B1%89%E8%AF%AD%E5%B8%B8%E7%94%A8%E5%AD%97%E8%A1%A8
4818	// This table covers 97.97% of all characters used during the month in July, 1987.
4819	// You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
4820	// (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
4821	static const short accumulative_offsets_from_0x4E00[] =
4822	{
4823	0,1,2,4,1,1,1,1,2,1,3,2,1,2,2,1,1,1,1,1,5,2,1,2,3,3,3,2,2,4,1,1,1,2,1,5,2,3,1,2,1,2,1,1,2,1,1,2,2,1,4,1,1,1,1,5,10,1,2,19,2,1,2,1,2,1,2,1,2,
4824	1,5,1,6,3,2,1,2,2,1,1,1,4,8,5,1,1,4,1,1,3,1,2,1,5,1,2,1,1,1,10,1,1,5,2,4,6,1,4,2,2,2,12,2,1,1,6,1,1,1,4,1,1,4,6,5,1,4,2,2,4,10,7,1,1,4,2,4,
4825	2,1,4,3,6,10,12,5,7,2,14,2,9,1,1,6,7,10,4,7,13,1,5,4,8,4,1,1,2,28,5,6,1,1,5,2,5,20,2,2,9,8,11,2,9,17,1,8,6,8,27,4,6,9,20,11,27,6,68,2,2,1,1,
4826	1,2,1,2,2,7,6,11,3,3,1,1,3,1,2,1,1,1,1,1,3,1,1,8,3,4,1,5,7,2,1,4,4,8,4,2,1,2,1,1,4,5,6,3,6,2,12,3,1,3,9,2,4,3,4,1,5,3,3,1,3,7,1,5,1,1,1,1,2,
4827	3,4,5,2,3,2,6,1,1,2,1,7,1,7,3,4,5,15,2,2,1,5,3,22,19,2,1,1,1,1,2,5,1,1,1,6,1,1,12,8,2,9,18,22,4,1,1,5,1,16,1,2,7,10,15,1,1,6,2,4,1,2,4,1,6,
4828	1,1,3,2,4,1,6,4,5,1,2,1,1,2,1,10,3,1,3,2,1,9,3,2,5,7,2,19,4,3,6,1,1,1,1,1,4,3,2,1,1,1,2,5,3,1,1,1,2,2,1,1,2,1,1,2,1,3,1,1,1,3,7,1,4,1,1,2,1,
4829	1,2,1,2,4,4,3,8,1,1,1,2,1,3,5,1,3,1,3,4,6,2,2,14,4,6,6,11,9,1,15,3,1,28,5,2,5,5,3,1,3,4,5,4,6,14,3,2,3,5,21,2,7,20,10,1,2,19,2,4,28,28,2,3,
4830	2,1,14,4,1,26,28,42,12,40,3,52,79,5,14,17,3,2,2,11,3,4,6,3,1,8,2,23,4,5,8,10,4,2,7,3,5,1,1,6,3,1,2,2,2,5,28,1,1,7,7,20,5,3,29,3,17,26,1,8,4,
4831	27,3,6,11,23,5,3,4,6,13,24,16,6,5,10,25,35,7,3,2,3,3,14,3,6,2,6,1,4,2,3,8,2,1,1,3,3,3,4,1,1,13,2,2,4,5,2,1,14,14,1,2,2,1,4,5,2,3,1,14,3,12,
4832	3,17,2,16,5,1,2,1,8,9,3,19,4,2,2,4,17,25,21,20,28,75,1,10,29,103,4,1,2,1,1,4,2,4,1,2,3,24,2,2,2,1,1,2,1,3,8,1,1,1,2,1,1,3,1,1,1,6,1,5,3,1,1,
4833	1,3,4,1,1,5,2,1,5,6,13,9,16,1,1,1,1,3,2,3,2,4,5,2,5,2,2,3,7,13,7,2,2,1,1,1,1,2,3,3,2,1,6,4,9,2,1,14,2,14,2,1,18,3,4,14,4,11,41,15,23,15,23,
4834	176,1,3,4,1,1,1,1,5,3,1,2,3,7,3,1,1,2,1,2,4,4,6,2,4,1,9,7,1,10,5,8,16,29,1,1,2,2,3,1,3,5,2,4,5,4,1,1,2,2,3,3,7,1,6,10,1,17,1,44,4,6,2,1,1,6,
4835	5,4,2,10,1,6,9,2,8,1,24,1,2,13,7,8,8,2,1,4,1,3,1,3,3,5,2,5,10,9,4,9,12,2,1,6,1,10,1,1,7,7,4,10,8,3,1,13,4,3,1,6,1,3,5,2,1,2,17,16,5,2,16,6,
4836	1,4,2,1,3,3,6,8,5,11,11,1,3,3,2,4,6,10,9,5,7,4,7,4,7,1,1,4,2,1,3,6,8,7,1,6,11,5,5,3,24,9,4,2,7,13,5,1,8,82,16,61,1,1,1,4,2,2,16,10,3,8,1,1,
4837	6,4,2,1,3,1,1,1,4,3,8,4,2,2,1,1,1,1,1,6,3,5,1,1,4,6,9,2,1,1,1,2,1,7,2,1,6,1,5,4,4,3,1,8,1,3,3,1,3,2,2,2,2,3,1,6,1,2,1,2,1,3,7,1,8,2,1,2,1,5,
4838	2,5,3,5,10,1,2,1,1,3,2,5,11,3,9,3,5,1,1,5,9,1,2,1,5,7,9,9,8,1,3,3,3,6,8,2,3,2,1,1,32,6,1,2,15,9,3,7,13,1,3,10,13,2,14,1,13,10,2,1,3,10,4,15,
4839	2,15,15,10,1,3,9,6,9,32,25,26,47,7,3,2,3,1,6,3,4,3,2,8,5,4,1,9,4,2,2,19,10,6,2,3,8,1,2,2,4,2,1,9,4,4,4,6,4,8,9,2,3,1,1,1,1,3,5,5,1,3,8,4,6,
4840	2,1,4,12,1,5,3,7,13,2,5,8,1,6,1,2,5,14,6,1,5,2,4,8,15,5,1,23,6,62,2,10,1,1,8,1,2,2,10,4,2,2,9,2,1,1,3,2,3,1,5,3,3,2,1,3,8,1,1,1,11,3,1,1,4,
4841	3,7,1,14,1,2,3,12,5,2,5,1,6,7,5,7,14,11,1,3,1,8,9,12,2,1,11,8,4,4,2,6,10,9,13,1,1,3,1,5,1,3,2,4,4,1,18,2,3,14,11,4,29,4,2,7,1,3,13,9,2,2,5,
4842	3,5,20,7,16,8,5,72,34,6,4,22,12,12,28,45,36,9,7,39,9,191,1,1,1,4,11,8,4,9,2,3,22,1,1,1,1,4,17,1,7,7,1,11,31,10,2,4,8,2,3,2,1,4,2,16,4,32,2,
4843	3,19,13,4,9,1,5,2,14,8,1,1,3,6,19,6,5,1,16,6,2,10,8,5,1,2,3,1,5,5,1,11,6,6,1,3,3,2,6,3,8,1,1,4,10,7,5,7,7,5,8,9,2,1,3,4,1,1,3,1,3,3,2,6,16,
4844	1,4,6,3,1,10,6,1,3,15,2,9,2,10,25,13,9,16,6,2,2,10,11,4,3,9,1,2,6,6,5,4,30,40,1,10,7,12,14,33,6,3,6,7,3,1,3,1,11,14,4,9,5,12,11,49,18,51,31,
4845	140,31,2,2,1,5,1,8,1,10,1,4,4,3,24,1,10,1,3,6,6,16,3,4,5,2,1,4,2,57,10,6,22,2,22,3,7,22,6,10,11,36,18,16,33,36,2,5,5,1,1,1,4,10,1,4,13,2,7,
4846	5,2,9,3,4,1,7,43,3,7,3,9,14,7,9,1,11,1,1,3,7,4,18,13,1,14,1,3,6,10,73,2,2,30,6,1,11,18,19,13,22,3,46,42,37,89,7,3,16,34,2,2,3,9,1,7,1,1,1,2,
4847	2,4,10,7,3,10,3,9,5,28,9,2,6,13,7,3,1,3,10,2,7,2,11,3,6,21,54,85,2,1,4,2,2,1,39,3,21,2,2,5,1,1,1,4,1,1,3,4,15,1,3,2,4,4,2,3,8,2,20,1,8,7,13,
4848	4,1,26,6,2,9,34,4,21,52,10,4,4,1,5,12,2,11,1,7,2,30,12,44,2,30,1,1,3,6,16,9,17,39,82,2,2,24,7,1,7,3,16,9,14,44,2,1,2,1,2,3,5,2,4,1,6,7,5,3,
4849	2,6,1,11,5,11,2,1,18,19,8,1,3,24,29,2,1,3,5,2,2,1,13,6,5,1,46,11,3,5,1,1,5,8,2,10,6,12,6,3,7,11,2,4,16,13,2,5,1,1,2,2,5,2,28,5,2,23,10,8,4,
4850	4,22,39,95,38,8,14,9,5,1,13,5,4,3,13,12,11,1,9,1,27,37,2,5,4,4,63,211,95,2,2,2,1,3,5,2,1,1,2,2,1,1,1,3,2,4,1,2,1,1,5,2,2,1,1,2,3,1,3,1,1,1,
4851	3,1,4,2,1,3,6,1,1,3,7,15,5,3,2,5,3,9,11,4,2,22,1,6,3,8,7,1,4,28,4,16,3,3,25,4,4,27,27,1,4,1,2,2,7,1,3,5,2,28,8,2,14,1,8,6,16,25,3,3,3,14,3,
4852	3,1,1,2,1,4,6,3,8,4,1,1,1,2,3,6,10,6,2,3,18,3,2,5,5,4,3,1,5,2,5,4,23,7,6,12,6,4,17,11,9,5,1,1,10,5,12,1,1,11,26,33,7,3,6,1,17,7,1,5,12,1,11,
4853	2,4,1,8,14,17,23,1,2,1,7,8,16,11,9,6,5,2,6,4,16,2,8,14,1,11,8,9,1,1,1,9,25,4,11,19,7,2,15,2,12,8,52,7,5,19,2,16,4,36,8,1,16,8,24,26,4,6,2,9,
4854	5,4,36,3,28,12,25,15,37,27,17,12,59,38,5,32,127,1,2,9,17,14,4,1,2,1,1,8,11,50,4,14,2,19,16,4,17,5,4,5,26,12,45,2,23,45,104,30,12,8,3,10,2,2,
4855	3,3,1,4,20,7,2,9,6,15,2,20,1,3,16,4,11,15,6,134,2,5,59,1,2,2,2,1,9,17,3,26,137,10,211,59,1,2,4,1,4,1,1,1,2,6,2,3,1,1,2,3,2,3,1,3,4,4,2,3,3,
4856	1,4,3,1,7,2,2,3,1,2,1,3,3,3,2,2,3,2,1,3,14,6,1,3,2,9,6,15,27,9,34,145,1,1,2,1,1,1,1,2,1,1,1,1,2,2,2,3,1,2,1,1,1,2,3,5,8,3,5,2,4,1,3,2,2,2,12,
4857	4,1,1,1,10,4,5,1,20,4,16,1,15,9,5,12,2,9,2,5,4,2,26,19,7,1,26,4,30,12,15,42,1,6,8,172,1,1,4,2,1,1,11,2,2,4,2,1,2,1,10,8,1,2,1,4,5,1,2,5,1,8,
4858	4,1,3,4,2,1,6,2,1,3,4,1,2,1,1,1,1,12,5,7,2,4,3,1,1,1,3,3,6,1,2,2,3,3,3,2,1,2,12,14,11,6,6,4,12,2,8,1,7,10,1,35,7,4,13,15,4,3,23,21,28,52,5,
4859	26,5,6,1,7,10,2,7,53,3,2,1,1,1,2,163,532,1,10,11,1,3,3,4,8,2,8,6,2,2,23,22,4,2,2,4,2,1,3,1,3,3,5,9,8,2,1,2,8,1,10,2,12,21,20,15,105,2,3,1,1,
4860	3,2,3,1,1,2,5,1,4,15,11,19,1,1,1,1,5,4,5,1,1,2,5,3,5,12,1,2,5,1,11,1,1,15,9,1,4,5,3,26,8,2,1,3,1,1,15,19,2,12,1,2,5,2,7,2,19,2,20,6,26,7,5,
4861	2,2,7,34,21,13,70,2,128,1,1,2,1,1,2,1,1,3,2,2,2,15,1,4,1,3,4,42,10,6,1,49,85,8,1,2,1,1,4,4,2,3,6,1,5,7,4,3,211,4,1,2,1,2,5,1,2,4,2,2,6,5,6,
4862	10,3,4,48,100,6,2,16,296,5,27,387,2,2,3,7,16,8,5,38,15,39,21,9,10,3,7,59,13,27,21,47,5,21,6
4863	};
4864	static ImWchar base_ranges[] = // not zero-terminated
4865	{
4866	0x0020, 0x00FF, // Basic Latin + Latin Supplement
4867	0x2000, 0x206F, // General Punctuation
4868	0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
4869	0x31F0, 0x31FF, // Katakana Phonetic Extensions
4870	0xFF00, 0xFFEF, // Half-width characters
4871	0xFFFD, 0xFFFD // Invalid
4872	};
4873	static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00) * 2 + 1] = { 0 };
4874	if (!full_ranges[0])
4875	{
4876	memcpy(dest: full_ranges, src: base_ranges, n: sizeof(base_ranges));
4877	UnpackAccumulativeOffsetsIntoRanges(base_codepoint: 0x4E00, accumulative_offsets: accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), out_ranges: full_ranges + IM_ARRAYSIZE(base_ranges));
4878	}
4879	return &full_ranges[0];
4880	}
4881
4882	const ImWchar* ImFontAtlas::GetGlyphRangesJapanese()
4883	{
4884	// 2999 ideograms code points for Japanese
4885	// - 2136 Joyo (meaning "for regular use" or "for common use") Kanji code points
4886	// - 863 Jinmeiyo (meaning "for personal name") Kanji code points
4887	// - Sourced from official information provided by the government agencies of Japan:
4888	// - List of Joyo Kanji by the Agency for Cultural Affairs
4889	// - https://www.bunka.go.jp/kokugo_nihongo/sisaku/joho/joho/kijun/naikaku/kanji/
4890	// - List of Jinmeiyo Kanji by the Ministry of Justice
4891	// - http://www.moj.go.jp/MINJI/minji86.html
4892	// - Available under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0).
4893	// - https://creativecommons.org/licenses/by/4.0/legalcode
4894	// - You can generate this code by the script at:
4895	// - https://github.com/vaiorabbit/everyday_use_kanji
4896	// - References:
4897	// - List of Joyo Kanji
4898	// - (Wikipedia) https://en.wikipedia.org/wiki/List_of_j%C5%8Dy%C5%8D_kanji
4899	// - List of Jinmeiyo Kanji
4900	// - (Wikipedia) https://en.wikipedia.org/wiki/Jinmeiy%C5%8D_kanji
4901	// - Missing 1 Joyo Kanji: U+20B9F (Kun'yomi: Shikaru, On'yomi: Shitsu,shichi), see https://github.com/ocornut/imgui/pull/3627 for details.
4902	// You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
4903	// (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
4904	static const short accumulative_offsets_from_0x4E00[] =
4905	{
4906	0,1,2,4,1,1,1,1,2,1,3,3,2,2,1,5,3,5,7,5,6,1,2,1,7,2,6,3,1,8,1,1,4,1,1,18,2,11,2,6,2,1,2,1,5,1,2,1,3,1,2,1,2,3,3,1,1,2,3,1,1,1,12,7,9,1,4,5,1,
4907	1,2,1,10,1,1,9,2,2,4,5,6,9,3,1,1,1,1,9,3,18,5,2,2,2,2,1,6,3,7,1,1,1,1,2,2,4,2,1,23,2,10,4,3,5,2,4,10,2,4,13,1,6,1,9,3,1,1,6,6,7,6,3,1,2,11,3,
4908	2,2,3,2,15,2,2,5,4,3,6,4,1,2,5,2,12,16,6,13,9,13,2,1,1,7,16,4,7,1,19,1,5,1,2,2,7,7,8,2,6,5,4,9,18,7,4,5,9,13,11,8,15,2,1,1,1,2,1,2,2,1,2,2,8,
4909	2,9,3,3,1,1,4,4,1,1,1,4,9,1,4,3,5,5,2,7,5,3,4,8,2,1,13,2,3,3,1,14,1,1,4,5,1,3,6,1,5,2,1,1,3,3,3,3,1,1,2,7,6,6,7,1,4,7,6,1,1,1,1,1,12,3,3,9,5,
4910	2,6,1,5,6,1,2,3,18,2,4,14,4,1,3,6,1,1,6,3,5,5,3,2,2,2,2,12,3,1,4,2,3,2,3,11,1,7,4,1,2,1,3,17,1,9,1,24,1,1,4,2,2,4,1,2,7,1,1,1,3,1,2,2,4,15,1,
4911	1,2,1,1,2,1,5,2,5,20,2,5,9,1,10,8,7,6,1,1,1,1,1,1,6,2,1,2,8,1,1,1,1,5,1,1,3,1,1,1,1,3,1,1,12,4,1,3,1,1,1,1,1,10,3,1,7,5,13,1,2,3,4,6,1,1,30,
4912	2,9,9,1,15,38,11,3,1,8,24,7,1,9,8,10,2,1,9,31,2,13,6,2,9,4,49,5,2,15,2,1,10,2,1,1,1,2,2,6,15,30,35,3,14,18,8,1,16,10,28,12,19,45,38,1,3,2,3,
4913	13,2,1,7,3,6,5,3,4,3,1,5,7,8,1,5,3,18,5,3,6,1,21,4,24,9,24,40,3,14,3,21,3,2,1,2,4,2,3,1,15,15,6,5,1,1,3,1,5,6,1,9,7,3,3,2,1,4,3,8,21,5,16,4,
4914	5,2,10,11,11,3,6,3,2,9,3,6,13,1,2,1,1,1,1,11,12,6,6,1,4,2,6,5,2,1,1,3,3,6,13,3,1,1,5,1,2,3,3,14,2,1,2,2,2,5,1,9,5,1,1,6,12,3,12,3,4,13,2,14,
4915	2,8,1,17,5,1,16,4,2,2,21,8,9,6,23,20,12,25,19,9,38,8,3,21,40,25,33,13,4,3,1,4,1,2,4,1,2,5,26,2,1,1,2,1,3,6,2,1,1,1,1,1,1,2,3,1,1,1,9,2,3,1,1,
4916	1,3,6,3,2,1,1,6,6,1,8,2,2,2,1,4,1,2,3,2,7,3,2,4,1,2,1,2,2,1,1,1,1,1,3,1,2,5,4,10,9,4,9,1,1,1,1,1,1,5,3,2,1,6,4,9,6,1,10,2,31,17,8,3,7,5,40,1,
4917	7,7,1,6,5,2,10,7,8,4,15,39,25,6,28,47,18,10,7,1,3,1,1,2,1,1,1,3,3,3,1,1,1,3,4,2,1,4,1,3,6,10,7,8,6,2,2,1,3,3,2,5,8,7,9,12,2,15,1,1,4,1,2,1,1,
4918	1,3,2,1,3,3,5,6,2,3,2,10,1,4,2,8,1,1,1,11,6,1,21,4,16,3,1,3,1,4,2,3,6,5,1,3,1,1,3,3,4,6,1,1,10,4,2,7,10,4,7,4,2,9,4,3,1,1,1,4,1,8,3,4,1,3,1,
4919	6,1,4,2,1,4,7,2,1,8,1,4,5,1,1,2,2,4,6,2,7,1,10,1,1,3,4,11,10,8,21,4,6,1,3,5,2,1,2,28,5,5,2,3,13,1,2,3,1,4,2,1,5,20,3,8,11,1,3,3,3,1,8,10,9,2,
4920	10,9,2,3,1,1,2,4,1,8,3,6,1,7,8,6,11,1,4,29,8,4,3,1,2,7,13,1,4,1,6,2,6,12,12,2,20,3,2,3,6,4,8,9,2,7,34,5,1,18,6,1,1,4,4,5,7,9,1,2,2,4,3,4,1,7,
4921	2,2,2,6,2,3,25,5,3,6,1,4,6,7,4,2,1,4,2,13,6,4,4,3,1,5,3,4,4,3,2,1,1,4,1,2,1,1,3,1,11,1,6,3,1,7,3,6,2,8,8,6,9,3,4,11,3,2,10,12,2,5,11,1,6,4,5,
4922	3,1,8,5,4,6,6,3,5,1,1,3,2,1,2,2,6,17,12,1,10,1,6,12,1,6,6,19,9,6,16,1,13,4,4,15,7,17,6,11,9,15,12,6,7,2,1,2,2,15,9,3,21,4,6,49,18,7,3,2,3,1,
4923	6,8,2,2,6,2,9,1,3,6,4,4,1,2,16,2,5,2,1,6,2,3,5,3,1,2,5,1,2,1,9,3,1,8,6,4,8,11,3,1,1,1,1,3,1,13,8,4,1,3,2,2,1,4,1,11,1,5,2,1,5,2,5,8,6,1,1,7,
4924	4,3,8,3,2,7,2,1,5,1,5,2,4,7,6,2,8,5,1,11,4,5,3,6,18,1,2,13,3,3,1,21,1,1,4,1,4,1,1,1,8,1,2,2,7,1,2,4,2,2,9,2,1,1,1,4,3,6,3,12,5,1,1,1,5,6,3,2,
4925	4,8,2,2,4,2,7,1,8,9,5,2,3,2,1,3,2,13,7,14,6,5,1,1,2,1,4,2,23,2,1,1,6,3,1,4,1,15,3,1,7,3,9,14,1,3,1,4,1,1,5,8,1,3,8,3,8,15,11,4,14,4,4,2,5,5,
4926	1,7,1,6,14,7,7,8,5,15,4,8,6,5,6,2,1,13,1,20,15,11,9,2,5,6,2,11,2,6,2,5,1,5,8,4,13,19,25,4,1,1,11,1,34,2,5,9,14,6,2,2,6,1,1,14,1,3,14,13,1,6,
4927	12,21,14,14,6,32,17,8,32,9,28,1,2,4,11,8,3,1,14,2,5,15,1,1,1,1,3,6,4,1,3,4,11,3,1,1,11,30,1,5,1,4,1,5,8,1,1,3,2,4,3,17,35,2,6,12,17,3,1,6,2,
4928	1,1,12,2,7,3,3,2,1,16,2,8,3,6,5,4,7,3,3,8,1,9,8,5,1,2,1,3,2,8,1,2,9,12,1,1,2,3,8,3,24,12,4,3,7,5,8,3,3,3,3,3,3,1,23,10,3,1,2,2,6,3,1,16,1,16,
4929	22,3,10,4,11,6,9,7,7,3,6,2,2,2,4,10,2,1,1,2,8,7,1,6,4,1,3,3,3,5,10,12,12,2,3,12,8,15,1,1,16,6,6,1,5,9,11,4,11,4,2,6,12,1,17,5,13,1,4,9,5,1,11,
4930	2,1,8,1,5,7,28,8,3,5,10,2,17,3,38,22,1,2,18,12,10,4,38,18,1,4,44,19,4,1,8,4,1,12,1,4,31,12,1,14,7,75,7,5,10,6,6,13,3,2,11,11,3,2,5,28,15,6,18,
4931	18,5,6,4,3,16,1,7,18,7,36,3,5,3,1,7,1,9,1,10,7,2,4,2,6,2,9,7,4,3,32,12,3,7,10,2,23,16,3,1,12,3,31,4,11,1,3,8,9,5,1,30,15,6,12,3,2,2,11,19,9,
4932	14,2,6,2,3,19,13,17,5,3,3,25,3,14,1,1,1,36,1,3,2,19,3,13,36,9,13,31,6,4,16,34,2,5,4,2,3,3,5,1,1,1,4,3,1,17,3,2,3,5,3,1,3,2,3,5,6,3,12,11,1,3,
4933	1,2,26,7,12,7,2,14,3,3,7,7,11,25,25,28,16,4,36,1,2,1,6,2,1,9,3,27,17,4,3,4,13,4,1,3,2,2,1,10,4,2,4,6,3,8,2,1,18,1,1,24,2,2,4,33,2,3,63,7,1,6,
4934	40,7,3,4,4,2,4,15,18,1,16,1,1,11,2,41,14,1,3,18,13,3,2,4,16,2,17,7,15,24,7,18,13,44,2,2,3,6,1,1,7,5,1,7,1,4,3,3,5,10,8,2,3,1,8,1,1,27,4,2,1,
4935	12,1,2,1,10,6,1,6,7,5,2,3,7,11,5,11,3,6,6,2,3,15,4,9,1,1,2,1,2,11,2,8,12,8,5,4,2,3,1,5,2,2,1,14,1,12,11,4,1,11,17,17,4,3,2,5,5,7,3,1,5,9,9,8,
4936	2,5,6,6,13,13,2,1,2,6,1,2,2,49,4,9,1,2,10,16,7,8,4,3,2,23,4,58,3,29,1,14,19,19,11,11,2,7,5,1,3,4,6,2,18,5,12,12,17,17,3,3,2,4,1,6,2,3,4,3,1,
4937	1,1,1,5,1,1,9,1,3,1,3,6,1,8,1,1,2,6,4,14,3,1,4,11,4,1,3,32,1,2,4,13,4,1,2,4,2,1,3,1,11,1,4,2,1,4,4,6,3,5,1,6,5,7,6,3,23,3,5,3,5,3,3,13,3,9,10,
4938	1,12,10,2,3,18,13,7,160,52,4,2,2,3,2,14,5,4,12,4,6,4,1,20,4,11,6,2,12,27,1,4,1,2,2,7,4,5,2,28,3,7,25,8,3,19,3,6,10,2,2,1,10,2,5,4,1,3,4,1,5,
4939	3,2,6,9,3,6,2,16,3,3,16,4,5,5,3,2,1,2,16,15,8,2,6,21,2,4,1,22,5,8,1,1,21,11,2,1,11,11,19,13,12,4,2,3,2,3,6,1,8,11,1,4,2,9,5,2,1,11,2,9,1,1,2,
4940	14,31,9,3,4,21,14,4,8,1,7,2,2,2,5,1,4,20,3,3,4,10,1,11,9,8,2,1,4,5,14,12,14,2,17,9,6,31,4,14,1,20,13,26,5,2,7,3,6,13,2,4,2,19,6,2,2,18,9,3,5,
4941	12,12,14,4,6,2,3,6,9,5,22,4,5,25,6,4,8,5,2,6,27,2,35,2,16,3,7,8,8,6,6,5,9,17,2,20,6,19,2,13,3,1,1,1,4,17,12,2,14,7,1,4,18,12,38,33,2,10,1,1,
4942	2,13,14,17,11,50,6,33,20,26,74,16,23,45,50,13,38,33,6,6,7,4,4,2,1,3,2,5,8,7,8,9,3,11,21,9,13,1,3,10,6,7,1,2,2,18,5,5,1,9,9,2,68,9,19,13,2,5,
4943	1,4,4,7,4,13,3,9,10,21,17,3,26,2,1,5,2,4,5,4,1,7,4,7,3,4,2,1,6,1,1,20,4,1,9,2,2,1,3,3,2,3,2,1,1,1,20,2,3,1,6,2,3,6,2,4,8,1,3,2,10,3,5,3,4,4,
4944	3,4,16,1,6,1,10,2,4,2,1,1,2,10,11,2,2,3,1,24,31,4,10,10,2,5,12,16,164,15,4,16,7,9,15,19,17,1,2,1,1,5,1,1,1,1,1,3,1,4,3,1,3,1,3,1,2,1,1,3,3,7,
4945	2,8,1,2,2,2,1,3,4,3,7,8,12,92,2,10,3,1,3,14,5,25,16,42,4,7,7,4,2,21,5,27,26,27,21,25,30,31,2,1,5,13,3,22,5,6,6,11,9,12,1,5,9,7,5,5,22,60,3,5,
4946	13,1,1,8,1,1,3,3,2,1,9,3,3,18,4,1,2,3,7,6,3,1,2,3,9,1,3,1,3,2,1,3,1,1,1,2,1,11,3,1,6,9,1,3,2,3,1,2,1,5,1,1,4,3,4,1,2,2,4,4,1,7,2,1,2,2,3,5,13,
4947	18,3,4,14,9,9,4,16,3,7,5,8,2,6,48,28,3,1,1,4,2,14,8,2,9,2,1,15,2,4,3,2,10,16,12,8,7,1,1,3,1,1,1,2,7,4,1,6,4,38,39,16,23,7,15,15,3,2,12,7,21,
4948	37,27,6,5,4,8,2,10,8,8,6,5,1,2,1,3,24,1,16,17,9,23,10,17,6,1,51,55,44,13,294,9,3,6,2,4,2,2,15,1,1,1,13,21,17,68,14,8,9,4,1,4,9,3,11,7,1,1,1,
4949	5,6,3,2,1,1,1,2,3,8,1,2,2,4,1,5,5,2,1,4,3,7,13,4,1,4,1,3,1,1,1,5,5,10,1,6,1,5,2,1,5,2,4,1,4,5,7,3,18,2,9,11,32,4,3,3,2,4,7,11,16,9,11,8,13,38,
4950	32,8,4,2,1,1,2,1,2,4,4,1,1,1,4,1,21,3,11,1,16,1,1,6,1,3,2,4,9,8,57,7,44,1,3,3,13,3,10,1,1,7,5,2,7,21,47,63,3,15,4,7,1,16,1,1,2,8,2,3,42,15,4,
4951	1,29,7,22,10,3,78,16,12,20,18,4,67,11,5,1,3,15,6,21,31,32,27,18,13,71,35,5,142,4,10,1,2,50,19,33,16,35,37,16,19,27,7,1,133,19,1,4,8,7,20,1,4,
4952	4,1,10,3,1,6,1,2,51,5,40,15,24,43,22928,11,1,13,154,70,3,1,1,7,4,10,1,2,1,1,2,1,2,1,2,2,1,1,2,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,
4953	3,2,1,1,1,1,2,1,1,
4954	};
4955	static ImWchar base_ranges[] = // not zero-terminated
4956	{
4957	0x0020, 0x00FF, // Basic Latin + Latin Supplement
4958	0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
4959	0x31F0, 0x31FF, // Katakana Phonetic Extensions
4960	0xFF00, 0xFFEF, // Half-width characters
4961	0xFFFD, 0xFFFD // Invalid
4962	};
4963	static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00)*2 + 1] = { 0 };
4964	if (!full_ranges[0])
4965	{
4966	memcpy(dest: full_ranges, src: base_ranges, n: sizeof(base_ranges));
4967	UnpackAccumulativeOffsetsIntoRanges(base_codepoint: 0x4E00, accumulative_offsets: accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), out_ranges: full_ranges + IM_ARRAYSIZE(base_ranges));
4968	}
4969	return &full_ranges[0];
4970	}
4971
4972	const ImWchar* ImFontAtlas::GetGlyphRangesCyrillic()
4973	{
4974	static const ImWchar ranges[] =
4975	{
4976	0x0020, 0x00FF, // Basic Latin + Latin Supplement
4977	0x0400, 0x052F, // Cyrillic + Cyrillic Supplement
4978	0x2DE0, 0x2DFF, // Cyrillic Extended-A
4979	0xA640, 0xA69F, // Cyrillic Extended-B
4980	0,
4981	};
4982	return &ranges[0];
4983	}
4984
4985	const ImWchar* ImFontAtlas::GetGlyphRangesThai()
4986	{
4987	static const ImWchar ranges[] =
4988	{
4989	0x0020, 0x00FF, // Basic Latin
4990	0x2010, 0x205E, // Punctuations
4991	0x0E00, 0x0E7F, // Thai
4992	0,
4993	};
4994	return &ranges[0];
4995	}
4996
4997	const ImWchar* ImFontAtlas::GetGlyphRangesVietnamese()
4998	{
4999	static const ImWchar ranges[] =
5000	{
5001	0x0020, 0x00FF, // Basic Latin
5002	0x0102, 0x0103,
5003	0x0110, 0x0111,
5004	0x0128, 0x0129,
5005	0x0168, 0x0169,
5006	0x01A0, 0x01A1,
5007	0x01AF, 0x01B0,
5008	0x1EA0, 0x1EF9,
5009	0,
5010	};
5011	return &ranges[0];
5012	}
5013	#endif // #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
5014
5015	//-----------------------------------------------------------------------------
5016	// [SECTION] ImFontGlyphRangesBuilder
5017	//-----------------------------------------------------------------------------
5018
5019	void ImFontGlyphRangesBuilder::AddText(const char* text, const char* text_end)
5020	{
5021	while (text_end ? (text < text_end) : *text)
5022	{
5023	unsigned int c = 0;
5024	int c_len = ImTextCharFromUtf8(out_char: &c, in_text: text, in_text_end: text_end);
5025	text += c_len;
5026	if (c_len == 0)
5027	break;
5028	AddChar(c: (ImWchar)c);
5029	}
5030	}
5031
5032	void ImFontGlyphRangesBuilder::AddRanges(const ImWchar* ranges)
5033	{
5034	for (; ranges[0]; ranges += 2)
5035	for (unsigned int c = ranges[0]; c <= ranges[1] && c <= IM_UNICODE_CODEPOINT_MAX; c++) //-V560
5036	AddChar(c: (ImWchar)c);
5037	}
5038
5039	void ImFontGlyphRangesBuilder::BuildRanges(ImVector<ImWchar>* out_ranges)
5040	{
5041	const int max_codepoint = IM_UNICODE_CODEPOINT_MAX;
5042	for (int n = 0; n <= max_codepoint; n++)
5043	if (GetBit(n))
5044	{
5045	out_ranges->push_back(v: (ImWchar)n);
5046	while (n < max_codepoint && GetBit(n: n + 1))
5047	n++;
5048	out_ranges->push_back(v: (ImWchar)n);
5049	}
5050	out_ranges->push_back(v: 0);
5051	}
5052
5053	//-----------------------------------------------------------------------------
5054	// [SECTION] ImFont
5055	//-----------------------------------------------------------------------------
5056
5057	ImFontBaked::ImFontBaked()
5058	{
5059	memset(s: this, c: 0, n: sizeof(*this));
5060	FallbackGlyphIndex = -1;
5061	}
5062
5063	void ImFontBaked::ClearOutputData()
5064	{
5065	FallbackAdvanceX = 0.0f;
5066	Glyphs.clear();
5067	IndexAdvanceX.clear();
5068	IndexLookup.clear();
5069	FallbackGlyphIndex = -1;
5070	Ascent = Descent = 0.0f;
5071	MetricsTotalSurface = 0;
5072	}
5073
5074	ImFont::ImFont()
5075	{
5076	memset(s: this, c: 0, n: sizeof(*this));
5077	#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
5078	Scale = 1.0f;
5079	#endif
5080	}
5081
5082	ImFont::~ImFont()
5083	{
5084	ClearOutputData();
5085	}
5086
5087	void ImFont::ClearOutputData()
5088	{
5089	if (ImFontAtlas* atlas = ContainerAtlas)
5090	ImFontAtlasFontDiscardBakes(atlas, font: this, unused_frames: 0);
5091	FallbackChar = EllipsisChar = 0;
5092	memset(s: Used8kPagesMap, c: 0, n: sizeof(Used8kPagesMap));
5093	LastBaked = NULL;
5094	}
5095
5096	// API is designed this way to avoid exposing the 8K page size
5097	// e.g. use with IsGlyphRangeUnused(0, 255)
5098	bool ImFont::IsGlyphRangeUnused(unsigned int c_begin, unsigned int c_last)
5099	{
5100	unsigned int page_begin = (c_begin / 8192);
5101	unsigned int page_last = (c_last / 8192);
5102	for (unsigned int page_n = page_begin; page_n <= page_last; page_n++)
5103	if ((page_n >> 3) < sizeof(Used8kPagesMap))
5104	if (Used8kPagesMap[page_n >> 3] & (1 << (page_n & 7)))
5105	return false;
5106	return true;
5107	}
5108
5109	// x0/y0/x1/y1 are offset from the character upper-left layout position, in pixels. Therefore x0/y0 are often fairly close to zero.
5110	// Not to be mistaken with texture coordinates, which are held by u0/v0/u1/v1 in normalized format (0.0..1.0 on each texture axis).
5111	// - 'src' is not necessarily == 'this->Sources' because multiple source fonts+configs can be used to build one target font.
5112	ImFontGlyph* ImFontAtlasBakedAddFontGlyph(ImFontAtlas* atlas, ImFontBaked* baked, ImFontConfig* src, const ImFontGlyph* in_glyph)
5113	{
5114	int glyph_idx = baked->Glyphs.Size;
5115	baked->Glyphs.push_back(v: *in_glyph);
5116	ImFontGlyph* glyph = &baked->Glyphs[glyph_idx];
5117	IM_ASSERT(baked->Glyphs.Size < 0xFFFE); // IndexLookup[] hold 16-bit values and -1/-2 are reserved.
5118
5119	// Set UV from packed rectangle
5120	if (glyph->PackId != ImFontAtlasRectId_Invalid)
5121	{
5122	ImTextureRect* r = ImFontAtlasPackGetRect(atlas, id: glyph->PackId);
5123	IM_ASSERT(glyph->U0 == 0.0f && glyph->V0 == 0.0f && glyph->U1 == 0.0f && glyph->V1 == 0.0f);
5124	glyph->U0 = (r->x) * atlas->TexUvScale.x;
5125	glyph->V0 = (r->y) * atlas->TexUvScale.y;
5126	glyph->U1 = (r->x + r->w) * atlas->TexUvScale.x;
5127	glyph->V1 = (r->y + r->h) * atlas->TexUvScale.y;
5128	baked->MetricsTotalSurface += r->w * r->h;
5129	}
5130
5131	if (src != NULL)
5132	{
5133	// Clamp & recenter if needed
5134	const float ref_size = baked->ContainerFont->Sources[0]->SizePixels;
5135	const float offsets_scale = (ref_size != 0.0f) ? (baked->Size / ref_size) : 1.0f;
5136	float advance_x = ImClamp(v: glyph->AdvanceX, mn: src->GlyphMinAdvanceX * offsets_scale, mx: src->GlyphMaxAdvanceX * offsets_scale);
5137	if (advance_x != glyph->AdvanceX)
5138	{
5139	float char_off_x = src->PixelSnapH ? ImTrunc(f: (advance_x - glyph->AdvanceX) * 0.5f) : (advance_x - glyph->AdvanceX) * 0.5f;
5140	glyph->X0 += char_off_x;
5141	glyph->X1 += char_off_x;
5142	}
5143
5144	// Snap to pixel
5145	if (src->PixelSnapH)
5146	advance_x = IM_ROUND(advance_x);
5147
5148	// Bake spacing
5149	glyph->AdvanceX = advance_x + src->GlyphExtraAdvanceX;
5150	}
5151	if (glyph->Colored)
5152	atlas->TexPixelsUseColors = atlas->TexData->UseColors = true;
5153
5154	// Update lookup tables
5155	const int codepoint = glyph->Codepoint;
5156	ImFontBaked_BuildGrowIndex(baked, new_size: codepoint + 1);
5157	baked->IndexAdvanceX[codepoint] = glyph->AdvanceX;
5158	baked->IndexLookup[codepoint] = (ImU16)glyph_idx;
5159	const int page_n = codepoint / 8192;
5160	baked->ContainerFont->Used8kPagesMap[page_n >> 3] |= 1 << (page_n & 7);
5161
5162	return glyph;
5163	}
5164
5165	// FIXME: Code is duplicated with code above.
5166	void ImFontAtlasBakedAddFontGlyphAdvancedX(ImFontAtlas* atlas, ImFontBaked* baked, ImFontConfig* src, ImWchar codepoint, float advance_x)
5167	{
5168	IM_UNUSED(atlas);
5169	if (src != NULL)
5170	{
5171	// Clamp & recenter if needed
5172	const float ref_size = baked->ContainerFont->Sources[0]->SizePixels;
5173	const float offsets_scale = (ref_size != 0.0f) ? (baked->Size / ref_size) : 1.0f;
5174	advance_x = ImClamp(v: advance_x, mn: src->GlyphMinAdvanceX * offsets_scale, mx: src->GlyphMaxAdvanceX * offsets_scale);
5175
5176	// Snap to pixel
5177	if (src->PixelSnapH)
5178	advance_x = IM_ROUND(advance_x);
5179
5180	// Bake spacing
5181	advance_x += src->GlyphExtraAdvanceX;
5182	}
5183
5184	ImFontBaked_BuildGrowIndex(baked, new_size: codepoint + 1);
5185	baked->IndexAdvanceX[codepoint] = advance_x;
5186	}
5187
5188	// Copy to texture, post-process and queue update for backend
5189	void ImFontAtlasBakedSetFontGlyphBitmap(ImFontAtlas* atlas, ImFontBaked* baked, ImFontConfig* src, ImFontGlyph* glyph, ImTextureRect* r, const unsigned char* src_pixels, ImTextureFormat src_fmt, int src_pitch)
5190	{
5191	ImTextureData* tex = atlas->TexData;
5192	IM_ASSERT(r->x + r->w <= tex->Width && r->y + r->h <= tex->Height);
5193	ImFontAtlasTextureBlockConvert(src_pixels, src_fmt, src_pitch, dst_pixels: (unsigned char*)tex->GetPixelsAt(x: r->x, y: r->y), dst_fmt: tex->Format, dst_pitch: tex->GetPitch(), w: r->w, h: r->h);
5194	ImFontAtlasPostProcessData pp_data = { .FontAtlas: atlas, .Font: baked->ContainerFont, .FontSrc: src, .FontBaked: baked, .Glyph: glyph, .Pixels: tex->GetPixelsAt(x: r->x, y: r->y), .Format: tex->Format, .Pitch: tex->GetPitch(), .Width: r->w, .Height: r->h };
5195	ImFontAtlasTextureBlockPostProcess(data: &pp_data);
5196	ImFontAtlasTextureBlockQueueUpload(atlas, tex, x: r->x, y: r->y, w: r->w, h: r->h);
5197	}
5198
5199	void ImFont::AddRemapChar(ImWchar from_codepoint, ImWchar to_codepoint)
5200	{
5201	RemapPairs.SetInt(key: (ImGuiID)from_codepoint, val: (int)to_codepoint);
5202	}
5203
5204	// Find glyph, load if necessary, return fallback if missing
5205	ImFontGlyph* ImFontBaked::FindGlyph(ImWchar c)
5206	{
5207	if (c < (size_t)IndexLookup.Size) IM_LIKELY
5208	{
5209	const int i = (int)IndexLookup.Data[c];
5210	if (i == IM_FONTGLYPH_INDEX_NOT_FOUND)
5211	return &Glyphs.Data[FallbackGlyphIndex];
5212	if (i != IM_FONTGLYPH_INDEX_UNUSED)
5213	return &Glyphs.Data[i];
5214	}
5215	ImFontGlyph* glyph = ImFontBaked_BuildLoadGlyph(baked: this, codepoint: c, NULL);
5216	return glyph ? glyph : &Glyphs.Data[FallbackGlyphIndex];
5217	}
5218
5219	// Attempt to load but when missing, return NULL instead of FallbackGlyph
5220	ImFontGlyph* ImFontBaked::FindGlyphNoFallback(ImWchar c)
5221	{
5222	if (c < (size_t)IndexLookup.Size) IM_LIKELY
5223	{
5224	const int i = (int)IndexLookup.Data[c];
5225	if (i == IM_FONTGLYPH_INDEX_NOT_FOUND)
5226	return NULL;
5227	if (i != IM_FONTGLYPH_INDEX_UNUSED)
5228	return &Glyphs.Data[i];
5229	}
5230	LoadNoFallback = true; // This is actually a rare call, not done in hot-loop, so we prioritize not adding extra cruft to ImFontBaked_BuildLoadGlyph() call sites.
5231	ImFontGlyph* glyph = ImFontBaked_BuildLoadGlyph(baked: this, codepoint: c, NULL);
5232	LoadNoFallback = false;
5233	return glyph;
5234	}
5235
5236	bool ImFontBaked::IsGlyphLoaded(ImWchar c)
5237	{
5238	if (c < (size_t)IndexLookup.Size) IM_LIKELY
5239	{
5240	const int i = (int)IndexLookup.Data[c];
5241	if (i == IM_FONTGLYPH_INDEX_NOT_FOUND)
5242	return false;
5243	if (i != IM_FONTGLYPH_INDEX_UNUSED)
5244	return true;
5245	}
5246	return false;
5247	}
5248
5249	// This is not fast query
5250	bool ImFont::IsGlyphInFont(ImWchar c)
5251	{
5252	ImFontAtlas* atlas = ContainerAtlas;
5253	ImFontAtlas_FontHookRemapCodepoint(atlas, font: this, c: &c);
5254	for (ImFontConfig* src : Sources)
5255	{
5256	const ImFontLoader* loader = src->FontLoader ? src->FontLoader : atlas->FontLoader;
5257	if (loader->FontSrcContainsGlyph != NULL && loader->FontSrcContainsGlyph(atlas, src, c))
5258	return true;
5259	}
5260	return false;
5261	}
5262
5263	// This is manually inlined in CalcTextSizeA() and CalcWordWrapPosition(), with a non-inline call to BuildLoadGlyphGetAdvanceOrFallback().
5264	IM_MSVC_RUNTIME_CHECKS_OFF
5265	float ImFontBaked::GetCharAdvance(ImWchar c)
5266	{
5267	if ((int)c < IndexAdvanceX.Size)
5268	{
5269	// Missing glyphs fitting inside index will have stored FallbackAdvanceX already.
5270	const float x = IndexAdvanceX.Data[c];
5271	if (x >= 0.0f)
5272	return x;
5273	}
5274	return ImFontBaked_BuildLoadGlyphAdvanceX(baked: this, codepoint: c);
5275	}
5276	IM_MSVC_RUNTIME_CHECKS_RESTORE
5277
5278	ImGuiID ImFontAtlasBakedGetId(ImGuiID font_id, float baked_size, float rasterizer_density)
5279	{
5280	struct { ImGuiID FontId; float BakedSize; float RasterizerDensity; } hashed_data;
5281	hashed_data.FontId = font_id;
5282	hashed_data.BakedSize = baked_size;
5283	hashed_data.RasterizerDensity = rasterizer_density;
5284	return ImHashData(data: &hashed_data, data_size: sizeof(hashed_data));
5285	}
5286
5287	// ImFontBaked pointers are valid for the entire frame but shall never be kept between frames.
5288	ImFontBaked* ImFont::GetFontBaked(float size, float density)
5289	{
5290	ImFontBaked* baked = LastBaked;
5291
5292	// Round font size
5293	// - ImGui::PushFont() will already round, but other paths calling GetFontBaked() directly also needs it (e.g. ImFontAtlasBuildPreloadAllGlyphRanges)
5294	size = ImGui::GetRoundedFontSize(size);
5295
5296	if (density < 0.0f)
5297	density = CurrentRasterizerDensity;
5298	if (baked && baked->Size == size && baked->RasterizerDensity == density)
5299	return baked;
5300
5301	ImFontAtlas* atlas = ContainerAtlas;
5302	ImFontAtlasBuilder* builder = atlas->Builder;
5303	baked = ImFontAtlasBakedGetOrAdd(atlas, font: this, font_size: size, font_rasterizer_density: density);
5304	if (baked == NULL)
5305	return NULL;
5306	baked->LastUsedFrame = builder->FrameCount;
5307	LastBaked = baked;
5308	return baked;
5309	}
5310
5311	ImFontBaked* ImFontAtlasBakedGetOrAdd(ImFontAtlas* atlas, ImFont* font, float font_size, float font_rasterizer_density)
5312	{
5313	// FIXME-NEWATLAS: Design for picking a nearest size based on some criteria?
5314	// FIXME-NEWATLAS: Altering font density won't work right away.
5315	IM_ASSERT(font_size > 0.0f && font_rasterizer_density > 0.0f);
5316	ImGuiID baked_id = ImFontAtlasBakedGetId(font_id: font->FontId, baked_size: font_size, rasterizer_density: font_rasterizer_density);
5317	ImFontAtlasBuilder* builder = atlas->Builder;
5318	ImFontBaked** p_baked_in_map = (ImFontBaked**)builder->BakedMap.GetVoidPtrRef(key: baked_id);
5319	ImFontBaked* baked = *p_baked_in_map;
5320	if (baked != NULL)
5321	{
5322	IM_ASSERT(baked->Size == font_size && baked->ContainerFont == font && baked->BakedId == baked_id);
5323	return baked;
5324	}
5325
5326	// If atlas is locked, find closest match
5327	// FIXME-OPT: This is not an optimal query.
5328	if ((font->Flags & ImFontFlags_LockBakedSizes) || atlas->Locked)
5329	{
5330	baked = ImFontAtlasBakedGetClosestMatch(atlas, font, font_size, font_rasterizer_density);
5331	if (baked != NULL)
5332	return baked;
5333	if (atlas->Locked)
5334	{
5335	IM_ASSERT(!atlas->Locked && "Cannot use dynamic font size with a locked ImFontAtlas!"); // Locked because rendering backend does not support ImGuiBackendFlags_RendererHasTextures!
5336	return NULL;
5337	}
5338	}
5339
5340	// Create new
5341	baked = ImFontAtlasBakedAdd(atlas, font, font_size, font_rasterizer_density, baked_id);
5342	*p_baked_in_map = baked; // To avoid 'builder->BakedMap.SetVoidPtr(baked_id, baked);' while we can.
5343	return baked;
5344	}
5345
5346	// Trim trailing space and find beginning of next line
5347	static inline const char* CalcWordWrapNextLineStartA(const char* text, const char* text_end)
5348	{
5349	while (text < text_end && ImCharIsBlankA(c: *text))
5350	text++;
5351	if (*text == '\n')
5352	text++;
5353	return text;
5354	}
5355
5356	// Simple word-wrapping for English, not full-featured. Please submit failing cases!
5357	// This will return the next location to wrap from. If no wrapping if necessary, this will fast-forward to e.g. text_end.
5358	// FIXME: Much possible improvements (don't cut things like "word !", "word!!!" but cut within "word,,,,", more sensible support for punctuations, support for Unicode punctuations, etc.)
5359	const char* ImFont::CalcWordWrapPosition(float size, const char* text, const char* text_end, float wrap_width)
5360	{
5361	// For references, possible wrap point marked with ^
5362	// "aaa bbb, ccc,ddd. eee fff. ggg!"
5363	// ^ ^ ^ ^ ^__ ^ ^
5364
5365	// List of hardcoded separators: .,;!?'"
5366
5367	// Skip extra blanks after a line returns (that includes not counting them in width computation)
5368	// e.g. "Hello world" --> "Hello" "World"
5369
5370	// Cut words that cannot possibly fit within one line.
5371	// e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish"
5372
5373	ImFontBaked* baked = GetFontBaked(size);
5374	const float scale = size / baked->Size;
5375
5376	float line_width = 0.0f;
5377	float word_width = 0.0f;
5378	float blank_width = 0.0f;
5379	wrap_width /= scale; // We work with unscaled widths to avoid scaling every characters
5380
5381	const char* word_end = text;
5382	const char* prev_word_end = NULL;
5383	bool inside_word = true;
5384
5385	const char* s = text;
5386	IM_ASSERT(text_end != NULL);
5387	while (s < text_end)
5388	{
5389	unsigned int c = (unsigned int)*s;
5390	const char* next_s;
5391	if (c < 0x80)
5392	next_s = s + 1;
5393	else
5394	next_s = s + ImTextCharFromUtf8(out_char: &c, in_text: s, in_text_end: text_end);
5395
5396	if (c < 32)
5397	{
5398	if (c == '\n')
5399	{
5400	line_width = word_width = blank_width = 0.0f;
5401	inside_word = true;
5402	s = next_s;
5403	continue;
5404	}
5405	if (c == '\r')
5406	{
5407	s = next_s;
5408	continue;
5409	}
5410	}
5411
5412	// Optimized inline version of 'float char_width = GetCharAdvance((ImWchar)c);'
5413	float char_width = (c < (unsigned int)baked->IndexAdvanceX.Size) ? baked->IndexAdvanceX.Data[c] : -1.0f;
5414	if (char_width < 0.0f)
5415	char_width = BuildLoadGlyphGetAdvanceOrFallback(baked, codepoint: c);
5416
5417	if (ImCharIsBlankW(c))
5418	{
5419	if (inside_word)
5420	{
5421	line_width += blank_width;
5422	blank_width = 0.0f;
5423	word_end = s;
5424	}
5425	blank_width += char_width;
5426	inside_word = false;
5427	}
5428	else
5429	{
5430	word_width += char_width;
5431	if (inside_word)
5432	{
5433	word_end = next_s;
5434	}
5435	else
5436	{
5437	prev_word_end = word_end;
5438	line_width += word_width + blank_width;
5439	word_width = blank_width = 0.0f;
5440	}
5441
5442	// Allow wrapping after punctuation.
5443	inside_word = (c != '.' && c != ',' && c != ';' && c != '!' && c != '?' && c != '\"' && c != 0x3001 && c != 0x3002);
5444	}
5445
5446	// We ignore blank width at the end of the line (they can be skipped)
5447	if (line_width + word_width > wrap_width)
5448	{
5449	// Words that cannot possibly fit within an entire line will be cut anywhere.
5450	if (word_width < wrap_width)
5451	s = prev_word_end ? prev_word_end : word_end;
5452	break;
5453	}
5454
5455	s = next_s;
5456	}
5457
5458	// Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
5459	// +1 may not be a character start point in UTF-8 but it's ok because caller loops use (text >= word_wrap_eol).
5460	if (s == text && text < text_end)
5461	return s + ImTextCountUtf8BytesFromChar(in_text: s, in_text_end: text_end);
5462	return s;
5463	}
5464
5465	ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining)
5466	{
5467	if (!text_end)
5468	text_end = text_begin + ImStrlen(s: text_begin); // FIXME-OPT: Need to avoid this.
5469
5470	const float line_height = size;
5471	ImFontBaked* baked = GetFontBaked(size);
5472	const float scale = size / baked->Size;
5473
5474	ImVec2 text_size = ImVec2(0, 0);
5475	float line_width = 0.0f;
5476
5477	const bool word_wrap_enabled = (wrap_width > 0.0f);
5478	const char* word_wrap_eol = NULL;
5479
5480	const char* s = text_begin;
5481	while (s < text_end)
5482	{
5483	if (word_wrap_enabled)
5484	{
5485	// Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
5486	if (!word_wrap_eol)
5487	word_wrap_eol = CalcWordWrapPosition(size, text: s, text_end, wrap_width: wrap_width - line_width);
5488
5489	if (s >= word_wrap_eol)
5490	{
5491	if (text_size.x < line_width)
5492	text_size.x = line_width;
5493	text_size.y += line_height;
5494	line_width = 0.0f;
5495	word_wrap_eol = NULL;
5496	s = CalcWordWrapNextLineStartA(text: s, text_end); // Wrapping skips upcoming blanks
5497	continue;
5498	}
5499	}
5500
5501	// Decode and advance source
5502	const char* prev_s = s;
5503	unsigned int c = (unsigned int)*s;
5504	if (c < 0x80)
5505	s += 1;
5506	else
5507	s += ImTextCharFromUtf8(out_char: &c, in_text: s, in_text_end: text_end);
5508
5509	if (c < 32)
5510	{
5511	if (c == '\n')
5512	{
5513	text_size.x = ImMax(lhs: text_size.x, rhs: line_width);
5514	text_size.y += line_height;
5515	line_width = 0.0f;
5516	continue;
5517	}
5518	if (c == '\r')
5519	continue;
5520	}
5521
5522	// Optimized inline version of 'float char_width = GetCharAdvance((ImWchar)c);'
5523	float char_width = (c < (unsigned int)baked->IndexAdvanceX.Size) ? baked->IndexAdvanceX.Data[c] : -1.0f;
5524	if (char_width < 0.0f)
5525	char_width = BuildLoadGlyphGetAdvanceOrFallback(baked, codepoint: c);
5526	char_width *= scale;
5527
5528	if (line_width + char_width >= max_width)
5529	{
5530	s = prev_s;
5531	break;
5532	}
5533
5534	line_width += char_width;
5535	}
5536
5537	if (text_size.x < line_width)
5538	text_size.x = line_width;
5539
5540	if (line_width > 0 || text_size.y == 0.0f)
5541	text_size.y += line_height;
5542
5543	if (remaining)
5544	*remaining = s;
5545
5546	return text_size;
5547	}
5548
5549	// Note: as with every ImDrawList drawing function, this expects that the font atlas texture is bound.
5550	void ImFont::RenderChar(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, ImWchar c, const ImVec4* cpu_fine_clip)
5551	{
5552	ImFontBaked* baked = GetFontBaked(size);
5553	const ImFontGlyph* glyph = baked->FindGlyph(c);
5554	if (!glyph || !glyph->Visible)
5555	return;
5556	if (glyph->Colored)
5557	col |= ~IM_COL32_A_MASK;
5558	float scale = (size >= 0.0f) ? (size / baked->Size) : 1.0f;
5559	float x = IM_TRUNC(pos.x);
5560	float y = IM_TRUNC(pos.y);
5561
5562	float x1 = x + glyph->X0 * scale;
5563	float x2 = x + glyph->X1 * scale;
5564	if (cpu_fine_clip && (x1 > cpu_fine_clip->z || x2 < cpu_fine_clip->x))
5565	return;
5566	float y1 = y + glyph->Y0 * scale;
5567	float y2 = y + glyph->Y1 * scale;
5568	float u1 = glyph->U0;
5569	float v1 = glyph->V0;
5570	float u2 = glyph->U1;
5571	float v2 = glyph->V1;
5572
5573	// Always CPU fine clip. Code extracted from RenderText().
5574	// CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads.
5575	if (cpu_fine_clip != NULL)
5576	{
5577	if (x1 < cpu_fine_clip->x) { u1 = u1 + (1.0f - (x2 - cpu_fine_clip->x) / (x2 - x1)) * (u2 - u1); x1 = cpu_fine_clip->x; }
5578	if (y1 < cpu_fine_clip->y) { v1 = v1 + (1.0f - (y2 - cpu_fine_clip->y) / (y2 - y1)) * (v2 - v1); y1 = cpu_fine_clip->y; }
5579	if (x2 > cpu_fine_clip->z) { u2 = u1 + ((cpu_fine_clip->z - x1) / (x2 - x1)) * (u2 - u1); x2 = cpu_fine_clip->z; }
5580	if (y2 > cpu_fine_clip->w) { v2 = v1 + ((cpu_fine_clip->w - y1) / (y2 - y1)) * (v2 - v1); y2 = cpu_fine_clip->w; }
5581	if (y1 >= y2)
5582	return;
5583	}
5584	draw_list->PrimReserve(idx_count: 6, vtx_count: 4);
5585	draw_list->PrimRectUV(a: ImVec2(x1, y1), c: ImVec2(x2, y2), uv_a: ImVec2(u1, v1), uv_c: ImVec2(u2, v2), col);
5586	}
5587
5588	// Note: as with every ImDrawList drawing function, this expects that the font atlas texture is bound.
5589	void ImFont::RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width, bool cpu_fine_clip)
5590	{
5591	// Align to be pixel perfect
5592	begin:
5593	float x = IM_TRUNC(pos.x);
5594	float y = IM_TRUNC(pos.y);
5595	if (y > clip_rect.w)
5596	return;
5597
5598	if (!text_end)
5599	text_end = text_begin + ImStrlen(s: text_begin); // ImGui:: functions generally already provides a valid text_end, so this is merely to handle direct calls.
5600
5601	const float line_height = size;
5602	ImFontBaked* baked = GetFontBaked(size);
5603
5604	const float scale = size / baked->Size;
5605	const float origin_x = x;
5606	const bool word_wrap_enabled = (wrap_width > 0.0f);
5607
5608	// Fast-forward to first visible line
5609	const char* s = text_begin;
5610	if (y + line_height < clip_rect.y)
5611	while (y + line_height < clip_rect.y && s < text_end)
5612	{
5613	const char* line_end = (const char*)ImMemchr(s: s, c: '\n', n: text_end - s);
5614	if (word_wrap_enabled)
5615	{
5616	// FIXME-OPT: This is not optimal as do first do a search for \n before calling CalcWordWrapPosition().
5617	// If the specs for CalcWordWrapPosition() were reworked to optionally return on \n we could combine both.
5618	// However it is still better than nothing performing the fast-forward!
5619	s = CalcWordWrapPosition(size, text: s, text_end: line_end ? line_end : text_end, wrap_width);
5620	s = CalcWordWrapNextLineStartA(text: s, text_end);
5621	}
5622	else
5623	{
5624	s = line_end ? line_end + 1 : text_end;
5625	}
5626	y += line_height;
5627	}
5628
5629	// For large text, scan for the last visible line in order to avoid over-reserving in the call to PrimReserve()
5630	// Note that very large horizontal line will still be affected by the issue (e.g. a one megabyte string buffer without a newline will likely crash atm)
5631	if (text_end - s > 10000 && !word_wrap_enabled)
5632	{
5633	const char* s_end = s;
5634	float y_end = y;
5635	while (y_end < clip_rect.w && s_end < text_end)
5636	{
5637	s_end = (const char*)ImMemchr(s: s_end, c: '\n', n: text_end - s_end);
5638	s_end = s_end ? s_end + 1 : text_end;
5639	y_end += line_height;
5640	}
5641	text_end = s_end;
5642	}
5643	if (s == text_end)
5644	return;
5645
5646	// Reserve vertices for remaining worse case (over-reserving is useful and easily amortized)
5647	const int vtx_count_max = (int)(text_end - s) * 4;
5648	const int idx_count_max = (int)(text_end - s) * 6;
5649	const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max;
5650	draw_list->PrimReserve(idx_count: idx_count_max, vtx_count: vtx_count_max);
5651	ImDrawVert* vtx_write = draw_list->_VtxWritePtr;
5652	ImDrawIdx* idx_write = draw_list->_IdxWritePtr;
5653	unsigned int vtx_index = draw_list->_VtxCurrentIdx;
5654	const int cmd_count = draw_list->CmdBuffer.Size;
5655
5656	const ImU32 col_untinted = col | ~IM_COL32_A_MASK;
5657	const char* word_wrap_eol = NULL;
5658
5659	while (s < text_end)
5660	{
5661	if (word_wrap_enabled)
5662	{
5663	// Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
5664	if (!word_wrap_eol)
5665	word_wrap_eol = CalcWordWrapPosition(size, text: s, text_end, wrap_width: wrap_width - (x - origin_x));
5666
5667	if (s >= word_wrap_eol)
5668	{
5669	x = origin_x;
5670	y += line_height;
5671	if (y > clip_rect.w)
5672	break; // break out of main loop
5673	word_wrap_eol = NULL;
5674	s = CalcWordWrapNextLineStartA(text: s, text_end); // Wrapping skips upcoming blanks
5675	continue;
5676	}
5677	}
5678
5679	// Decode and advance source
5680	unsigned int c = (unsigned int)*s;
5681	if (c < 0x80)
5682	s += 1;
5683	else
5684	s += ImTextCharFromUtf8(out_char: &c, in_text: s, in_text_end: text_end);
5685
5686	if (c < 32)
5687	{
5688	if (c == '\n')
5689	{
5690	x = origin_x;
5691	y += line_height;
5692	if (y > clip_rect.w)
5693	break; // break out of main loop
5694	continue;
5695	}
5696	if (c == '\r')
5697	continue;
5698	}
5699
5700	const ImFontGlyph* glyph = baked->FindGlyph(c: (ImWchar)c);
5701	//if (glyph == NULL)
5702	// continue;
5703
5704	float char_width = glyph->AdvanceX * scale;
5705	if (glyph->Visible)
5706	{
5707	// We don't do a second finer clipping test on the Y axis as we've already skipped anything before clip_rect.y and exit once we pass clip_rect.w
5708	float x1 = x + glyph->X0 * scale;
5709	float x2 = x + glyph->X1 * scale;
5710	float y1 = y + glyph->Y0 * scale;
5711	float y2 = y + glyph->Y1 * scale;
5712	if (x1 <= clip_rect.z && x2 >= clip_rect.x)
5713	{
5714	// Render a character
5715	float u1 = glyph->U0;
5716	float v1 = glyph->V0;
5717	float u2 = glyph->U1;
5718	float v2 = glyph->V1;
5719
5720	// CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads.
5721	if (cpu_fine_clip)
5722	{
5723	if (x1 < clip_rect.x)
5724	{
5725	u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1);
5726	x1 = clip_rect.x;
5727	}
5728	if (y1 < clip_rect.y)
5729	{
5730	v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1);
5731	y1 = clip_rect.y;
5732	}
5733	if (x2 > clip_rect.z)
5734	{
5735	u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1);
5736	x2 = clip_rect.z;
5737	}
5738	if (y2 > clip_rect.w)
5739	{
5740	v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1);
5741	y2 = clip_rect.w;
5742	}
5743	if (y1 >= y2)
5744	{
5745	x += char_width;
5746	continue;
5747	}
5748	}
5749
5750	// Support for untinted glyphs
5751	ImU32 glyph_col = glyph->Colored ? col_untinted : col;
5752
5753	// We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here:
5754	{
5755	vtx_write[0].pos.x = x1; vtx_write[0].pos.y = y1; vtx_write[0].col = glyph_col; vtx_write[0].uv.x = u1; vtx_write[0].uv.y = v1;
5756	vtx_write[1].pos.x = x2; vtx_write[1].pos.y = y1; vtx_write[1].col = glyph_col; vtx_write[1].uv.x = u2; vtx_write[1].uv.y = v1;
5757	vtx_write[2].pos.x = x2; vtx_write[2].pos.y = y2; vtx_write[2].col = glyph_col; vtx_write[2].uv.x = u2; vtx_write[2].uv.y = v2;
5758	vtx_write[3].pos.x = x1; vtx_write[3].pos.y = y2; vtx_write[3].col = glyph_col; vtx_write[3].uv.x = u1; vtx_write[3].uv.y = v2;
5759	idx_write[0] = (ImDrawIdx)(vtx_index); idx_write[1] = (ImDrawIdx)(vtx_index + 1); idx_write[2] = (ImDrawIdx)(vtx_index + 2);
5760	idx_write[3] = (ImDrawIdx)(vtx_index); idx_write[4] = (ImDrawIdx)(vtx_index + 2); idx_write[5] = (ImDrawIdx)(vtx_index + 3);
5761	vtx_write += 4;
5762	vtx_index += 4;
5763	idx_write += 6;
5764	}
5765	}
5766	}
5767	x += char_width;
5768	}
5769
5770	// Edge case: calling RenderText() with unloaded glyphs triggering texture change. It doesn't happen via ImGui:: calls because CalcTextSize() is always used.
5771	if (cmd_count != draw_list->CmdBuffer.Size) //-V547
5772	{
5773	IM_ASSERT(draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ElemCount == 0);
5774	draw_list->CmdBuffer.pop_back();
5775	draw_list->PrimUnreserve(idx_count: idx_count_max, vtx_count: vtx_count_max);
5776	draw_list->AddDrawCmd();
5777	//IMGUI_DEBUG_LOG("RenderText: cancel and retry to missing glyphs.\n"); // [DEBUG]
5778	//draw_list->AddRectFilled(pos, pos + ImVec2(10, 10), IM_COL32(255, 0, 0, 255)); // [DEBUG]
5779	goto begin;
5780	//RenderText(draw_list, size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip); // FIXME-OPT: Would a 'goto begin' be better for code-gen?
5781	//return;
5782	}
5783
5784	// Give back unused vertices (clipped ones, blanks) ~ this is essentially a PrimUnreserve() action.
5785	draw_list->VtxBuffer.Size = (int)(vtx_write - draw_list->VtxBuffer.Data); // Same as calling shrink()
5786	draw_list->IdxBuffer.Size = (int)(idx_write - draw_list->IdxBuffer.Data);
5787	draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size);
5788	draw_list->_VtxWritePtr = vtx_write;
5789	draw_list->_IdxWritePtr = idx_write;
5790	draw_list->_VtxCurrentIdx = vtx_index;
5791	}
5792
5793	//-----------------------------------------------------------------------------
5794	// [SECTION] ImGui Internal Render Helpers
5795	//-----------------------------------------------------------------------------
5796	// Vaguely redesigned to stop accessing ImGui global state:
5797	// - RenderArrow()
5798	// - RenderBullet()
5799	// - RenderCheckMark()
5800	// - RenderArrowDockMenu()
5801	// - RenderArrowPointingAt()
5802	// - RenderRectFilledRangeH()
5803	// - RenderRectFilledWithHole()
5804	//-----------------------------------------------------------------------------
5805	// Function in need of a redesign (legacy mess)
5806	// - RenderColorRectWithAlphaCheckerboard()
5807	//-----------------------------------------------------------------------------
5808
5809	// Render an arrow aimed to be aligned with text (p_min is a position in the same space text would be positioned). To e.g. denote expanded/collapsed state
5810	void ImGui::RenderArrow(ImDrawList* draw_list, ImVec2 pos, ImU32 col, ImGuiDir dir, float scale)
5811	{
5812	const float h = draw_list->_Data->FontSize * 1.00f;
5813	float r = h * 0.40f * scale;
5814	ImVec2 center = pos + ImVec2(h * 0.50f, h * 0.50f * scale);
5815
5816	ImVec2 a, b, c;
5817	switch (dir)
5818	{
5819	case ImGuiDir_Up:
5820	case ImGuiDir_Down:
5821	if (dir == ImGuiDir_Up) r = -r;
5822	a = ImVec2(+0.000f, +0.750f) * r;
5823	b = ImVec2(-0.866f, -0.750f) * r;
5824	c = ImVec2(+0.866f, -0.750f) * r;
5825	break;
5826	case ImGuiDir_Left:
5827	case ImGuiDir_Right:
5828	if (dir == ImGuiDir_Left) r = -r;
5829	a = ImVec2(+0.750f, +0.000f) * r;
5830	b = ImVec2(-0.750f, +0.866f) * r;
5831	c = ImVec2(-0.750f, -0.866f) * r;
5832	break;
5833	case ImGuiDir_None:
5834	case ImGuiDir_COUNT:
5835	IM_ASSERT(0);
5836	break;
5837	}
5838	draw_list->AddTriangleFilled(p1: center + a, p2: center + b, p3: center + c, col);
5839	}
5840
5841	void ImGui::RenderBullet(ImDrawList* draw_list, ImVec2 pos, ImU32 col)
5842	{
5843	// FIXME-OPT: This should be baked in font.
5844	draw_list->AddCircleFilled(center: pos, radius: draw_list->_Data->FontSize * 0.20f, col, num_segments: 8);
5845	}
5846
5847	void ImGui::RenderCheckMark(ImDrawList* draw_list, ImVec2 pos, ImU32 col, float sz)
5848	{
5849	float thickness = ImMax(lhs: sz / 5.0f, rhs: 1.0f);
5850	sz -= thickness * 0.5f;
5851	pos += ImVec2(thickness * 0.25f, thickness * 0.25f);
5852
5853	float third = sz / 3.0f;
5854	float bx = pos.x + third;
5855	float by = pos.y + sz - third * 0.5f;
5856	draw_list->PathLineTo(pos: ImVec2(bx - third, by - third));
5857	draw_list->PathLineTo(pos: ImVec2(bx, by));
5858	draw_list->PathLineTo(pos: ImVec2(bx + third * 2.0f, by - third * 2.0f));
5859	draw_list->PathStroke(col, flags: 0, thickness);
5860	}
5861
5862	// Render an arrow. 'pos' is position of the arrow tip. half_sz.x is length from base to tip. half_sz.y is length on each side.
5863	void ImGui::RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col)
5864	{
5865	switch (direction)
5866	{
5867	case ImGuiDir_Left: draw_list->AddTriangleFilled(p1: ImVec2(pos.x + half_sz.x, pos.y - half_sz.y), p2: ImVec2(pos.x + half_sz.x, pos.y + half_sz.y), p3: pos, col); return;
5868	case ImGuiDir_Right: draw_list->AddTriangleFilled(p1: ImVec2(pos.x - half_sz.x, pos.y + half_sz.y), p2: ImVec2(pos.x - half_sz.x, pos.y - half_sz.y), p3: pos, col); return;
5869	case ImGuiDir_Up: draw_list->AddTriangleFilled(p1: ImVec2(pos.x + half_sz.x, pos.y + half_sz.y), p2: ImVec2(pos.x - half_sz.x, pos.y + half_sz.y), p3: pos, col); return;
5870	case ImGuiDir_Down: draw_list->AddTriangleFilled(p1: ImVec2(pos.x - half_sz.x, pos.y - half_sz.y), p2: ImVec2(pos.x + half_sz.x, pos.y - half_sz.y), p3: pos, col); return;
5871	case ImGuiDir_None: case ImGuiDir_COUNT: break; // Fix warnings
5872	}
5873	}
5874
5875	// This is less wide than RenderArrow() and we use in dock nodes instead of the regular RenderArrow() to denote a change of functionality,
5876	// and because the saved space means that the left-most tab label can stay at exactly the same position as the label of a loose window.
5877	void ImGui::RenderArrowDockMenu(ImDrawList* draw_list, ImVec2 p_min, float sz, ImU32 col)
5878	{
5879	draw_list->AddRectFilled(p_min: p_min + ImVec2(sz * 0.20f, sz * 0.15f), p_max: p_min + ImVec2(sz * 0.80f, sz * 0.30f), col);
5880	RenderArrowPointingAt(draw_list, pos: p_min + ImVec2(sz * 0.50f, sz * 0.85f), half_sz: ImVec2(sz * 0.30f, sz * 0.40f), direction: ImGuiDir_Down, col);
5881	}
5882
5883	static inline float ImAcos01(float x)
5884	{
5885	if (x <= 0.0f) return IM_PI * 0.5f;
5886	if (x >= 1.0f) return 0.0f;
5887	return ImAcos(x);
5888	//return (-0.69813170079773212f * x * x - 0.87266462599716477f) * x + 1.5707963267948966f; // Cheap approximation, may be enough for what we do.
5889	}
5890
5891	// FIXME: Cleanup and move code to ImDrawList.
5892	void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding)
5893	{
5894	if (x_end_norm == x_start_norm)
5895	return;
5896	if (x_start_norm > x_end_norm)
5897	ImSwap(a&: x_start_norm, b&: x_end_norm);
5898
5899	ImVec2 p0 = ImVec2(ImLerp(a: rect.Min.x, b: rect.Max.x, t: x_start_norm), rect.Min.y);
5900	ImVec2 p1 = ImVec2(ImLerp(a: rect.Min.x, b: rect.Max.x, t: x_end_norm), rect.Max.y);
5901	if (rounding == 0.0f)
5902	{
5903	draw_list->AddRectFilled(p_min: p0, p_max: p1, col, rounding: 0.0f);
5904	return;
5905	}
5906
5907	rounding = ImClamp(v: ImMin(lhs: (rect.Max.x - rect.Min.x) * 0.5f, rhs: (rect.Max.y - rect.Min.y) * 0.5f) - 1.0f, mn: 0.0f, mx: rounding);
5908	const float inv_rounding = 1.0f / rounding;
5909	const float arc0_b = ImAcos01(x: 1.0f - (p0.x - rect.Min.x) * inv_rounding);
5910	const float arc0_e = ImAcos01(x: 1.0f - (p1.x - rect.Min.x) * inv_rounding);
5911	const float half_pi = IM_PI * 0.5f; // We will == compare to this because we know this is the exact value ImAcos01 can return.
5912	const float x0 = ImMax(lhs: p0.x, rhs: rect.Min.x + rounding);
5913	if (arc0_b == arc0_e)
5914	{
5915	draw_list->PathLineTo(pos: ImVec2(x0, p1.y));
5916	draw_list->PathLineTo(pos: ImVec2(x0, p0.y));
5917	}
5918	else if (arc0_b == 0.0f && arc0_e == half_pi)
5919	{
5920	draw_list->PathArcToFast(center: ImVec2(x0, p1.y - rounding), radius: rounding, a_min_of_12: 3, a_max_of_12: 6); // BL
5921	draw_list->PathArcToFast(center: ImVec2(x0, p0.y + rounding), radius: rounding, a_min_of_12: 6, a_max_of_12: 9); // TR
5922	}
5923	else
5924	{
5925	draw_list->PathArcTo(center: ImVec2(x0, p1.y - rounding), radius: rounding, IM_PI - arc0_e, IM_PI - arc0_b); // BL
5926	draw_list->PathArcTo(center: ImVec2(x0, p0.y + rounding), radius: rounding, IM_PI + arc0_b, IM_PI + arc0_e); // TR
5927	}
5928	if (p1.x > rect.Min.x + rounding)
5929	{
5930	const float arc1_b = ImAcos01(x: 1.0f - (rect.Max.x - p1.x) * inv_rounding);
5931	const float arc1_e = ImAcos01(x: 1.0f - (rect.Max.x - p0.x) * inv_rounding);
5932	const float x1 = ImMin(lhs: p1.x, rhs: rect.Max.x - rounding);
5933	if (arc1_b == arc1_e)
5934	{
5935	draw_list->PathLineTo(pos: ImVec2(x1, p0.y));
5936	draw_list->PathLineTo(pos: ImVec2(x1, p1.y));
5937	}
5938	else if (arc1_b == 0.0f && arc1_e == half_pi)
5939	{
5940	draw_list->PathArcToFast(center: ImVec2(x1, p0.y + rounding), radius: rounding, a_min_of_12: 9, a_max_of_12: 12); // TR
5941	draw_list->PathArcToFast(center: ImVec2(x1, p1.y - rounding), radius: rounding, a_min_of_12: 0, a_max_of_12: 3); // BR
5942	}
5943	else
5944	{
5945	draw_list->PathArcTo(center: ImVec2(x1, p0.y + rounding), radius: rounding, a_min: -arc1_e, a_max: -arc1_b); // TR
5946	draw_list->PathArcTo(center: ImVec2(x1, p1.y - rounding), radius: rounding, a_min: +arc1_b, a_max: +arc1_e); // BR
5947	}
5948	}
5949	draw_list->PathFillConvex(col);
5950	}
5951
5952	void ImGui::RenderRectFilledWithHole(ImDrawList* draw_list, const ImRect& outer, const ImRect& inner, ImU32 col, float rounding)
5953	{
5954	const bool fill_L = (inner.Min.x > outer.Min.x);
5955	const bool fill_R = (inner.Max.x < outer.Max.x);
5956	const bool fill_U = (inner.Min.y > outer.Min.y);
5957	const bool fill_D = (inner.Max.y < outer.Max.y);
5958	if (fill_L) draw_list->AddRectFilled(p_min: ImVec2(outer.Min.x, inner.Min.y), p_max: ImVec2(inner.Min.x, inner.Max.y), col, rounding, flags: ImDrawFlags_RoundCornersNone | (fill_U ? 0 : ImDrawFlags_RoundCornersTopLeft) | (fill_D ? 0 : ImDrawFlags_RoundCornersBottomLeft));
5959	if (fill_R) draw_list->AddRectFilled(p_min: ImVec2(inner.Max.x, inner.Min.y), p_max: ImVec2(outer.Max.x, inner.Max.y), col, rounding, flags: ImDrawFlags_RoundCornersNone | (fill_U ? 0 : ImDrawFlags_RoundCornersTopRight) | (fill_D ? 0 : ImDrawFlags_RoundCornersBottomRight));
5960	if (fill_U) draw_list->AddRectFilled(p_min: ImVec2(inner.Min.x, outer.Min.y), p_max: ImVec2(inner.Max.x, inner.Min.y), col, rounding, flags: ImDrawFlags_RoundCornersNone | (fill_L ? 0 : ImDrawFlags_RoundCornersTopLeft) | (fill_R ? 0 : ImDrawFlags_RoundCornersTopRight));
5961	if (fill_D) draw_list->AddRectFilled(p_min: ImVec2(inner.Min.x, inner.Max.y), p_max: ImVec2(inner.Max.x, outer.Max.y), col, rounding, flags: ImDrawFlags_RoundCornersNone | (fill_L ? 0 : ImDrawFlags_RoundCornersBottomLeft) | (fill_R ? 0 : ImDrawFlags_RoundCornersBottomRight));
5962	if (fill_L && fill_U) draw_list->AddRectFilled(p_min: ImVec2(outer.Min.x, outer.Min.y), p_max: ImVec2(inner.Min.x, inner.Min.y), col, rounding, flags: ImDrawFlags_RoundCornersTopLeft);
5963	if (fill_R && fill_U) draw_list->AddRectFilled(p_min: ImVec2(inner.Max.x, outer.Min.y), p_max: ImVec2(outer.Max.x, inner.Min.y), col, rounding, flags: ImDrawFlags_RoundCornersTopRight);
5964	if (fill_L && fill_D) draw_list->AddRectFilled(p_min: ImVec2(outer.Min.x, inner.Max.y), p_max: ImVec2(inner.Min.x, outer.Max.y), col, rounding, flags: ImDrawFlags_RoundCornersBottomLeft);
5965	if (fill_R && fill_D) draw_list->AddRectFilled(p_min: ImVec2(inner.Max.x, inner.Max.y), p_max: ImVec2(outer.Max.x, outer.Max.y), col, rounding, flags: ImDrawFlags_RoundCornersBottomRight);
5966	}
5967
5968	ImDrawFlags ImGui::CalcRoundingFlagsForRectInRect(const ImRect& r_in, const ImRect& r_outer, float threshold)
5969	{
5970	bool round_l = r_in.Min.x <= r_outer.Min.x + threshold;
5971	bool round_r = r_in.Max.x >= r_outer.Max.x - threshold;
5972	bool round_t = r_in.Min.y <= r_outer.Min.y + threshold;
5973	bool round_b = r_in.Max.y >= r_outer.Max.y - threshold;
5974	return ImDrawFlags_RoundCornersNone
5975	| ((round_t && round_l) ? ImDrawFlags_RoundCornersTopLeft : 0) | ((round_t && round_r) ? ImDrawFlags_RoundCornersTopRight : 0)
5976	| ((round_b && round_l) ? ImDrawFlags_RoundCornersBottomLeft : 0) | ((round_b && round_r) ? ImDrawFlags_RoundCornersBottomRight : 0);
5977	}
5978
5979	// Helper for ColorPicker4()
5980	// NB: This is rather brittle and will show artifact when rounding this enabled if rounded corners overlap multiple cells. Caller currently responsible for avoiding that.
5981	// Spent a non reasonable amount of time trying to getting this right for ColorButton with rounding+anti-aliasing+ImGuiColorEditFlags_HalfAlphaPreview flag + various grid sizes and offsets, and eventually gave up... probably more reasonable to disable rounding altogether.
5982	// FIXME: uses ImGui::GetColorU32
5983	void ImGui::RenderColorRectWithAlphaCheckerboard(ImDrawList* draw_list, ImVec2 p_min, ImVec2 p_max, ImU32 col, float grid_step, ImVec2 grid_off, float rounding, ImDrawFlags flags)
5984	{
5985	if ((flags & ImDrawFlags_RoundCornersMask_) == 0)
5986	flags = ImDrawFlags_RoundCornersDefault_;
5987	if (((col & IM_COL32_A_MASK) >> IM_COL32_A_SHIFT) < 0xFF)
5988	{
5989	ImU32 col_bg1 = GetColorU32(col: ImAlphaBlendColors(IM_COL32(204, 204, 204, 255), col_b: col));
5990	ImU32 col_bg2 = GetColorU32(col: ImAlphaBlendColors(IM_COL32(128, 128, 128, 255), col_b: col));
5991	draw_list->AddRectFilled(p_min, p_max, col: col_bg1, rounding, flags);
5992
5993	int yi = 0;
5994	for (float y = p_min.y + grid_off.y; y < p_max.y; y += grid_step, yi++)
5995	{
5996	float y1 = ImClamp(v: y, mn: p_min.y, mx: p_max.y), y2 = ImMin(lhs: y + grid_step, rhs: p_max.y);
5997	if (y2 <= y1)
5998	continue;
5999	for (float x = p_min.x + grid_off.x + (yi & 1) * grid_step; x < p_max.x; x += grid_step * 2.0f)
6000	{
6001	float x1 = ImClamp(v: x, mn: p_min.x, mx: p_max.x), x2 = ImMin(lhs: x + grid_step, rhs: p_max.x);
6002	if (x2 <= x1)
6003	continue;
6004	ImDrawFlags cell_flags = ImDrawFlags_RoundCornersNone;
6005	if (y1 <= p_min.y) { if (x1 <= p_min.x) cell_flags |= ImDrawFlags_RoundCornersTopLeft; if (x2 >= p_max.x) cell_flags |= ImDrawFlags_RoundCornersTopRight; }
6006	if (y2 >= p_max.y) { if (x1 <= p_min.x) cell_flags |= ImDrawFlags_RoundCornersBottomLeft; if (x2 >= p_max.x) cell_flags |= ImDrawFlags_RoundCornersBottomRight; }
6007
6008	// Combine flags
6009	cell_flags = (flags == ImDrawFlags_RoundCornersNone || cell_flags == ImDrawFlags_RoundCornersNone) ? ImDrawFlags_RoundCornersNone : (cell_flags & flags);
6010	draw_list->AddRectFilled(p_min: ImVec2(x1, y1), p_max: ImVec2(x2, y2), col: col_bg2, rounding, flags: cell_flags);
6011	}
6012	}
6013	}
6014	else
6015	{
6016	draw_list->AddRectFilled(p_min, p_max, col, rounding, flags);
6017	}
6018	}
6019
6020	//-----------------------------------------------------------------------------
6021	// [SECTION] Decompression code
6022	//-----------------------------------------------------------------------------
6023	// Compressed with stb_compress() then converted to a C array and encoded as base85.
6024	// Use the program in misc/fonts/binary_to_compressed_c.cpp to create the array from a TTF file.
6025	// The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
6026	// Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h
6027	//-----------------------------------------------------------------------------
6028
6029	static unsigned int stb_decompress_length(const unsigned char *input)
6030	{
6031	return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11];
6032	}
6033
6034	static unsigned char *stb__barrier_out_e, *stb__barrier_out_b;
6035	static const unsigned char *stb__barrier_in_b;
6036	static unsigned char *stb__dout;
6037	static void stb__match(const unsigned char *data, unsigned int length)
6038	{
6039	// INVERSE of memmove... write each byte before copying the next...
6040	IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
6041	if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
6042	if (data < stb__barrier_out_b) { stb__dout = stb__barrier_out_e+1; return; }
6043	while (length--) *stb__dout++ = *data++;
6044	}
6045
6046	static void stb__lit(const unsigned char *data, unsigned int length)
6047	{
6048	IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
6049	if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
6050	if (data < stb__barrier_in_b) { stb__dout = stb__barrier_out_e+1; return; }
6051	memcpy(dest: stb__dout, src: data, n: length);
6052	stb__dout += length;
6053	}
6054
6055	#define stb__in2(x) ((i[x] << 8) + i[(x)+1])
6056	#define stb__in3(x) ((i[x] << 16) + stb__in2((x)+1))
6057	#define stb__in4(x) ((i[x] << 24) + stb__in3((x)+1))
6058
6059	static const unsigned char *stb_decompress_token(const unsigned char *i)
6060	{
6061	if (*i >= 0x20) { // use fewer if's for cases that expand small
6062	if (*i >= 0x80) stb__match(data: stb__dout-i[1]-1, length: i[0] - 0x80 + 1), i += 2;
6063	else if (*i >= 0x40) stb__match(data: stb__dout-(stb__in2(0) - 0x4000 + 1), length: i[2]+1), i += 3;
6064	else /* *i >= 0x20 */ stb__lit(data: i+1, length: i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1);
6065	} else { // more ifs for cases that expand large, since overhead is amortized
6066	if (*i >= 0x18) stb__match(data: stb__dout-(stb__in3(0) - 0x180000 + 1), length: i[3]+1), i += 4;
6067	else if (*i >= 0x10) stb__match(data: stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5;
6068	else if (*i >= 0x08) stb__lit(data: i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1);
6069	else if (*i == 0x07) stb__lit(data: i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1);
6070	else if (*i == 0x06) stb__match(data: stb__dout-(stb__in3(1)+1), length: i[4]+1), i += 5;
6071	else if (*i == 0x04) stb__match(data: stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6;
6072	}
6073	return i;
6074	}
6075
6076	static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen)
6077	{
6078	const unsigned long ADLER_MOD = 65521;
6079	unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16;
6080	unsigned long blocklen = buflen % 5552;
6081
6082	unsigned long i;
6083	while (buflen) {
6084	for (i=0; i + 7 < blocklen; i += 8) {
6085	s1 += buffer[0], s2 += s1;
6086	s1 += buffer[1], s2 += s1;
6087	s1 += buffer[2], s2 += s1;
6088	s1 += buffer[3], s2 += s1;
6089	s1 += buffer[4], s2 += s1;
6090	s1 += buffer[5], s2 += s1;
6091	s1 += buffer[6], s2 += s1;
6092	s1 += buffer[7], s2 += s1;
6093
6094	buffer += 8;
6095	}
6096
6097	for (; i < blocklen; ++i)
6098	s1 += *buffer++, s2 += s1;
6099
6100	s1 %= ADLER_MOD, s2 %= ADLER_MOD;
6101	buflen -= blocklen;
6102	blocklen = 5552;
6103	}
6104	return (unsigned int)(s2 << 16) + (unsigned int)s1;
6105	}
6106
6107	static unsigned int stb_decompress(unsigned char *output, const unsigned char *i, unsigned int /*length*/)
6108	{
6109	if (stb__in4(0) != 0x57bC0000) return 0;
6110	if (stb__in4(4) != 0) return 0; // error! stream is > 4GB
6111	const unsigned int olen = stb_decompress_length(input: i);
6112	stb__barrier_in_b = i;
6113	stb__barrier_out_e = output + olen;
6114	stb__barrier_out_b = output;
6115	i += 16;
6116
6117	stb__dout = output;
6118	for (;;) {
6119	const unsigned char *old_i = i;
6120	i = stb_decompress_token(i);
6121	if (i == old_i) {
6122	if (*i == 0x05 && i[1] == 0xfa) {
6123	IM_ASSERT(stb__dout == output + olen);
6124	if (stb__dout != output + olen) return 0;
6125	if (stb_adler32(adler32: 1, buffer: output, buflen: olen) != (unsigned int) stb__in4(2))
6126	return 0;
6127	return olen;
6128	} else {
6129	IM_ASSERT(0); /* NOTREACHED */
6130	return 0;
6131	}
6132	}
6133	IM_ASSERT(stb__dout <= output + olen);
6134	if (stb__dout > output + olen)
6135	return 0;
6136	}
6137	}
6138
6139	//-----------------------------------------------------------------------------
6140	// [SECTION] Default font data (ProggyClean.ttf)
6141	//-----------------------------------------------------------------------------
6142	// ProggyClean.ttf
6143	// Copyright (c) 2004, 2005 Tristan Grimmer
6144	// MIT license (see License.txt in http://www.proggyfonts.net/index.php?menu=download)
6145	// Download and more information at http://www.proggyfonts.net or http://upperboundsinteractive.com/fonts.php
6146	//-----------------------------------------------------------------------------
6147
6148	#ifndef IMGUI_DISABLE_DEFAULT_FONT
6149
6150	// File: 'ProggyClean.ttf' (41208 bytes)
6151	// Exported using binary_to_compressed_c.exe -u8 "ProggyClean.ttf" proggy_clean_ttf
6152	static const unsigned int proggy_clean_ttf_compressed_size = 9583;
6153	static const unsigned char proggy_clean_ttf_compressed_data[9583] =
6154	{
6155	87,188,0,0,0,0,0,0,0,0,160,248,0,4,0,0,55,0,1,0,0,0,12,0,128,0,3,0,64,79,83,47,50,136,235,116,144,0,0,1,72,130,21,44,78,99,109,97,112,2,18,35,117,0,0,3,160,130,19,36,82,99,118,116,
6156	32,130,23,130,2,33,4,252,130,4,56,2,103,108,121,102,18,175,137,86,0,0,7,4,0,0,146,128,104,101,97,100,215,145,102,211,130,27,32,204,130,3,33,54,104,130,16,39,8,66,1,195,0,0,1,4,130,
6157	15,59,36,104,109,116,120,138,0,126,128,0,0,1,152,0,0,2,6,108,111,99,97,140,115,176,216,0,0,5,130,30,41,2,4,109,97,120,112,1,174,0,218,130,31,32,40,130,16,44,32,110,97,109,101,37,89,
6158	187,150,0,0,153,132,130,19,44,158,112,111,115,116,166,172,131,239,0,0,155,36,130,51,44,210,112,114,101,112,105,2,1,18,0,0,4,244,130,47,32,8,132,203,46,1,0,0,60,85,233,213,95,15,60,
6159	245,0,3,8,0,131,0,34,183,103,119,130,63,43,0,0,189,146,166,215,0,0,254,128,3,128,131,111,130,241,33,2,0,133,0,32,1,130,65,38,192,254,64,0,0,3,128,131,16,130,5,32,1,131,7,138,3,33,2,
6160	0,130,17,36,1,1,0,144,0,130,121,130,23,38,2,0,8,0,64,0,10,130,9,32,118,130,9,130,6,32,0,130,59,33,1,144,131,200,35,2,188,2,138,130,16,32,143,133,7,37,1,197,0,50,2,0,131,0,33,4,9,131,
6161	5,145,3,43,65,108,116,115,0,64,0,0,32,172,8,0,131,0,35,5,0,1,128,131,77,131,3,33,3,128,191,1,33,1,128,130,184,35,0,0,128,0,130,3,131,11,32,1,130,7,33,0,128,131,1,32,1,136,9,32,0,132,
6162	15,135,5,32,1,131,13,135,27,144,35,32,1,149,25,131,21,32,0,130,0,32,128,132,103,130,35,132,39,32,0,136,45,136,97,133,17,130,5,33,0,0,136,19,34,0,128,1,133,13,133,5,32,128,130,15,132,
6163	131,32,3,130,5,32,3,132,27,144,71,32,0,133,27,130,29,130,31,136,29,131,63,131,3,65,63,5,132,5,132,205,130,9,33,0,0,131,9,137,119,32,3,132,19,138,243,130,55,32,1,132,35,135,19,131,201,
6164	136,11,132,143,137,13,130,41,32,0,131,3,144,35,33,128,0,135,1,131,223,131,3,141,17,134,13,136,63,134,15,136,53,143,15,130,96,33,0,3,131,4,130,3,34,28,0,1,130,5,34,0,0,76,130,17,131,
6165	9,36,28,0,4,0,48,130,17,46,8,0,8,0,2,0,0,0,127,0,255,32,172,255,255,130,9,34,0,0,129,132,9,130,102,33,223,213,134,53,132,22,33,1,6,132,6,64,4,215,32,129,165,216,39,177,0,1,141,184,
6166	1,255,133,134,45,33,198,0,193,1,8,190,244,1,28,1,158,2,20,2,136,2,252,3,20,3,88,3,156,3,222,4,20,4,50,4,80,4,98,4,162,5,22,5,102,5,188,6,18,6,116,6,214,7,56,7,126,7,236,8,78,8,108,
6167	8,150,8,208,9,16,9,74,9,136,10,22,10,128,11,4,11,86,11,200,12,46,12,130,12,234,13,94,13,164,13,234,14,80,14,150,15,40,15,176,16,18,16,116,16,224,17,82,17,182,18,4,18,110,18,196,19,
6168	76,19,172,19,246,20,88,20,174,20,234,21,64,21,128,21,166,21,184,22,18,22,126,22,198,23,52,23,142,23,224,24,86,24,186,24,238,25,54,25,150,25,212,26,72,26,156,26,240,27,92,27,200,28,
6169	4,28,76,28,150,28,234,29,42,29,146,29,210,30,64,30,142,30,224,31,36,31,118,31,166,31,166,32,16,130,1,52,46,32,138,32,178,32,200,33,20,33,116,33,152,33,238,34,98,34,134,35,12,130,1,
6170	33,128,35,131,1,60,152,35,176,35,216,36,0,36,74,36,104,36,144,36,174,37,6,37,96,37,130,37,248,37,248,38,88,38,170,130,1,8,190,216,39,64,39,154,40,10,40,104,40,168,41,14,41,32,41,184,
6171	41,248,42,54,42,96,42,96,43,2,43,42,43,94,43,172,43,230,44,32,44,52,44,154,45,40,45,92,45,120,45,170,45,232,46,38,46,166,47,38,47,182,47,244,48,94,48,200,49,62,49,180,50,30,50,158,
6172	51,30,51,130,51,238,52,92,52,206,53,58,53,134,53,212,54,38,54,114,54,230,55,118,55,216,56,58,56,166,57,18,57,116,57,174,58,46,58,154,59,6,59,124,59,232,60,58,60,150,61,34,61,134,61,
6173	236,62,86,62,198,63,42,63,154,64,18,64,106,64,208,65,54,65,162,66,8,66,64,66,122,66,184,66,240,67,98,67,204,68,42,68,138,68,238,69,88,69,182,69,226,70,84,70,180,71,20,71,122,71,218,
6174	72,84,72,198,73,64,0,36,70,21,8,8,77,3,0,7,0,11,0,15,0,19,0,23,0,27,0,31,0,35,0,39,0,43,0,47,0,51,0,55,0,59,0,63,0,67,0,71,0,75,0,79,0,83,0,87,0,91,0,95,0,99,0,103,0,107,0,111,0,115,
6175	0,119,0,123,0,127,0,131,0,135,0,139,0,143,0,0,17,53,51,21,49,150,3,32,5,130,23,32,33,130,3,211,7,151,115,32,128,133,0,37,252,128,128,2,128,128,190,5,133,74,32,4,133,6,206,5,42,0,7,
6176	1,128,0,0,2,0,4,0,0,65,139,13,37,0,1,53,51,21,7,146,3,32,3,130,19,32,1,141,133,32,3,141,14,131,13,38,255,0,128,128,0,6,1,130,84,35,2,128,4,128,140,91,132,89,32,51,65,143,6,139,7,33,
6177	1,0,130,57,32,254,130,3,32,128,132,4,32,4,131,14,138,89,35,0,0,24,0,130,0,33,3,128,144,171,66,55,33,148,115,65,187,19,32,5,130,151,143,155,163,39,32,1,136,182,32,253,134,178,132,7,
6178	132,200,145,17,32,3,65,48,17,165,17,39,0,0,21,0,128,255,128,3,65,175,17,65,3,27,132,253,131,217,139,201,155,233,155,27,131,67,131,31,130,241,33,255,0,131,181,137,232,132,15,132,4,138,
6179	247,34,255,0,128,179,238,32,0,130,0,32,20,65,239,48,33,0,19,67,235,10,32,51,65,203,14,65,215,11,32,7,154,27,135,39,32,33,130,35,33,128,128,130,231,32,253,132,231,32,128,132,232,34,
6180	128,128,254,133,13,136,8,32,253,65,186,5,130,36,130,42,176,234,133,231,34,128,0,0,66,215,44,33,0,1,68,235,6,68,211,19,32,49,68,239,14,139,207,139,47,66,13,7,32,51,130,47,33,1,0,130,
6181	207,35,128,128,1,0,131,222,131,5,130,212,130,6,131,212,32,0,130,10,133,220,130,233,130,226,32,254,133,255,178,233,39,3,1,128,3,0,2,0,4,68,15,7,68,99,12,130,89,130,104,33,128,4,133,
6182	93,130,10,38,0,0,11,1,0,255,0,68,63,16,70,39,9,66,215,8,32,7,68,77,6,68,175,14,32,29,68,195,6,132,7,35,2,0,128,255,131,91,132,4,65,178,5,141,111,67,129,23,165,135,140,107,142,135,33,
6183	21,5,69,71,6,131,7,33,1,0,140,104,132,142,130,4,137,247,140,30,68,255,12,39,11,0,128,0,128,3,0,3,69,171,15,67,251,7,65,15,8,66,249,11,65,229,7,67,211,7,66,13,7,35,1,128,128,254,133,
6184	93,32,254,131,145,132,4,132,18,32,2,151,128,130,23,34,0,0,9,154,131,65,207,8,68,107,15,68,51,7,32,7,70,59,7,135,121,130,82,32,128,151,111,41,0,0,4,0,128,255,0,1,128,1,137,239,33,0,
6185	37,70,145,10,65,77,10,65,212,14,37,0,0,0,5,0,128,66,109,5,70,123,10,33,0,19,72,33,18,133,237,70,209,11,33,0,2,130,113,137,119,136,115,33,1,0,133,43,130,5,34,0,0,10,69,135,6,70,219,
6186	13,66,155,7,65,9,12,66,157,11,66,9,11,32,7,130,141,132,252,66,151,9,137,9,66,15,30,36,0,20,0,128,0,130,218,71,11,42,68,51,8,65,141,7,73,19,15,69,47,23,143,39,66,81,7,32,1,66,55,6,34,
6187	1,128,128,68,25,5,69,32,6,137,6,136,25,32,254,131,42,32,3,66,88,26,148,26,32,0,130,0,32,14,164,231,70,225,12,66,233,7,67,133,19,71,203,15,130,161,32,255,130,155,32,254,139,127,134,
6188	12,164,174,33,0,15,164,159,33,59,0,65,125,20,66,25,7,32,5,68,191,6,66,29,7,144,165,65,105,9,35,128,128,255,0,137,2,133,182,164,169,33,128,128,197,171,130,155,68,235,7,32,21,70,77,19,
6189	66,21,10,68,97,8,66,30,5,66,4,43,34,0,17,0,71,19,41,65,253,20,71,25,23,65,91,15,65,115,7,34,2,128,128,66,9,8,130,169,33,1,0,66,212,13,132,28,72,201,43,35,0,0,0,18,66,27,38,76,231,5,
6190	68,157,20,135,157,32,7,68,185,13,65,129,28,66,20,5,32,253,66,210,11,65,128,49,133,61,32,0,65,135,6,74,111,37,72,149,12,66,203,19,65,147,19,68,93,7,68,85,8,76,4,5,33,255,0,133,129,34,
6191	254,0,128,68,69,8,181,197,34,0,0,12,65,135,32,65,123,20,69,183,27,133,156,66,50,5,72,87,10,67,137,32,33,0,19,160,139,78,251,13,68,55,20,67,119,19,65,91,36,69,177,15,32,254,143,16,65,
6192	98,53,32,128,130,0,32,0,66,43,54,70,141,23,66,23,15,131,39,69,47,11,131,15,70,129,19,74,161,9,36,128,255,0,128,254,130,153,65,148,32,67,41,9,34,0,0,4,79,15,5,73,99,10,71,203,8,32,3,
6193	72,123,6,72,43,8,32,2,133,56,131,99,130,9,34,0,0,6,72,175,5,73,159,14,144,63,135,197,132,189,133,66,33,255,0,73,6,7,70,137,12,35,0,0,0,10,130,3,73,243,25,67,113,12,65,73,7,69,161,7,
6194	138,7,37,21,2,0,128,128,254,134,3,73,116,27,33,128,128,130,111,39,12,0,128,1,0,3,128,2,72,219,21,35,43,0,47,0,67,47,20,130,111,33,21,1,68,167,13,81,147,8,133,230,32,128,77,73,6,32,
6195	128,131,142,134,18,130,6,32,255,75,18,12,131,243,37,128,0,128,3,128,3,74,231,21,135,123,32,29,134,107,135,7,32,21,74,117,7,135,7,134,96,135,246,74,103,23,132,242,33,0,10,67,151,28,
6196	67,133,20,66,141,11,131,11,32,3,77,71,6,32,128,130,113,32,1,81,4,6,134,218,66,130,24,131,31,34,0,26,0,130,0,77,255,44,83,15,11,148,155,68,13,7,32,49,78,231,18,79,7,11,73,243,11,32,
6197	33,65,187,10,130,63,65,87,8,73,239,19,35,0,128,1,0,131,226,32,252,65,100,6,32,128,139,8,33,1,0,130,21,32,253,72,155,44,73,255,20,32,128,71,67,8,81,243,39,67,15,20,74,191,23,68,121,
6198	27,32,1,66,150,6,32,254,79,19,11,131,214,32,128,130,215,37,2,0,128,253,0,128,136,5,65,220,24,147,212,130,210,33,0,24,72,219,42,84,255,13,67,119,16,69,245,19,72,225,19,65,3,15,69,93,
6199	19,131,55,132,178,71,115,14,81,228,6,142,245,33,253,0,132,43,172,252,65,16,11,75,219,8,65,219,31,66,223,24,75,223,10,33,29,1,80,243,10,66,175,8,131,110,134,203,133,172,130,16,70,30,
6200	7,164,183,130,163,32,20,65,171,48,65,163,36,65,143,23,65,151,19,65,147,13,65,134,17,133,17,130,216,67,114,5,164,217,65,137,12,72,147,48,79,71,19,74,169,22,80,251,8,65,173,7,66,157,
6201	15,74,173,15,32,254,65,170,8,71,186,45,72,131,6,77,143,40,187,195,152,179,65,123,38,68,215,57,68,179,15,65,85,7,69,187,14,32,21,66,95,15,67,19,25,32,1,83,223,6,32,2,76,240,7,77,166,
6202	43,65,8,5,130,206,32,0,67,39,54,143,167,66,255,19,82,193,11,151,47,85,171,5,67,27,17,132,160,69,172,11,69,184,56,66,95,6,33,12,1,130,237,32,2,68,179,27,68,175,16,80,135,15,72,55,7,
6203	71,87,12,73,3,12,132,12,66,75,32,76,215,5,169,139,147,135,148,139,81,12,12,81,185,36,75,251,7,65,23,27,76,215,9,87,165,12,65,209,15,72,157,7,65,245,31,32,128,71,128,6,32,1,82,125,5,
6204	34,0,128,254,131,169,32,254,131,187,71,180,9,132,27,32,2,88,129,44,32,0,78,47,40,65,79,23,79,171,14,32,21,71,87,8,72,15,14,65,224,33,130,139,74,27,62,93,23,7,68,31,7,75,27,7,139,15,
6205	74,3,7,74,23,27,65,165,11,65,177,15,67,123,5,32,1,130,221,32,252,71,96,5,74,12,12,133,244,130,25,34,1,0,128,130,2,139,8,93,26,8,65,9,32,65,57,14,140,14,32,0,73,79,67,68,119,11,135,
6206	11,32,51,90,75,14,139,247,65,43,7,131,19,139,11,69,159,11,65,247,6,36,1,128,128,253,0,90,71,9,33,1,0,132,14,32,128,89,93,14,69,133,6,130,44,131,30,131,6,65,20,56,33,0,16,72,179,40,
6207	75,47,12,65,215,19,74,95,19,65,43,11,131,168,67,110,5,75,23,17,69,106,6,75,65,5,71,204,43,32,0,80,75,47,71,203,15,159,181,68,91,11,67,197,7,73,101,13,68,85,6,33,128,128,130,214,130,
6208	25,32,254,74,236,48,130,194,37,0,18,0,128,255,128,77,215,40,65,139,64,32,51,80,159,10,65,147,39,130,219,84,212,43,130,46,75,19,97,74,33,11,65,201,23,65,173,31,33,1,0,79,133,6,66,150,
6209	5,67,75,48,85,187,6,70,207,37,32,71,87,221,13,73,163,14,80,167,15,132,15,83,193,19,82,209,8,78,99,9,72,190,11,77,110,49,89,63,5,80,91,35,99,63,32,70,235,23,81,99,10,69,148,10,65,110,
6210	36,32,0,65,99,47,95,219,11,68,171,51,66,87,7,72,57,7,74,45,17,143,17,65,114,50,33,14,0,65,111,40,159,195,98,135,15,35,7,53,51,21,100,78,9,95,146,16,32,254,82,114,6,32,128,67,208,37,
6211	130,166,99,79,58,32,17,96,99,14,72,31,19,72,87,31,82,155,7,67,47,14,32,21,131,75,134,231,72,51,17,72,78,8,133,8,80,133,6,33,253,128,88,37,9,66,124,36,72,65,12,134,12,71,55,43,66,139,
6212	27,85,135,10,91,33,12,65,35,11,66,131,11,71,32,8,90,127,6,130,244,71,76,11,168,207,33,0,12,66,123,32,32,0,65,183,15,68,135,11,66,111,7,67,235,11,66,111,15,32,254,97,66,12,160,154,67,
6213	227,52,80,33,15,87,249,15,93,45,31,75,111,12,93,45,11,77,99,9,160,184,81,31,12,32,15,98,135,30,104,175,7,77,249,36,69,73,15,78,5,12,32,254,66,151,19,34,128,128,4,87,32,12,149,35,133,
6214	21,96,151,31,32,19,72,35,5,98,173,15,143,15,32,21,143,99,158,129,33,0,0,65,35,52,65,11,15,147,15,98,75,11,33,1,0,143,151,132,15,32,254,99,200,37,132,43,130,4,39,0,10,0,128,1,128,3,
6215	0,104,151,14,97,187,20,69,131,15,67,195,11,87,227,7,33,128,128,132,128,33,254,0,68,131,9,65,46,26,42,0,0,0,7,0,0,255,128,3,128,0,88,223,15,33,0,21,89,61,22,66,209,12,65,2,12,37,0,2,
6216	1,0,3,128,101,83,8,36,0,1,53,51,29,130,3,34,21,1,0,66,53,8,32,0,68,215,6,100,55,25,107,111,9,66,193,11,72,167,8,73,143,31,139,31,33,1,0,131,158,32,254,132,5,33,253,128,65,16,9,133,
6217	17,89,130,25,141,212,33,0,0,93,39,8,90,131,25,93,39,14,66,217,6,106,179,8,159,181,71,125,15,139,47,138,141,87,11,14,76,23,14,65,231,26,140,209,66,122,8,81,179,5,101,195,26,32,47,74,
6218	75,13,69,159,11,83,235,11,67,21,16,136,167,131,106,130,165,130,15,32,128,101,90,24,134,142,32,0,65,103,51,108,23,11,101,231,15,75,173,23,74,237,23,66,15,6,66,46,17,66,58,17,65,105,
6219	49,66,247,55,71,179,12,70,139,15,86,229,7,84,167,15,32,1,95,72,12,89,49,6,33,128,128,65,136,38,66,30,9,32,0,100,239,7,66,247,29,70,105,20,65,141,19,69,81,15,130,144,32,128,83,41,5,
6220	32,255,131,177,68,185,5,133,126,65,97,37,32,0,130,0,33,21,0,130,55,66,195,28,67,155,13,34,79,0,83,66,213,13,73,241,19,66,59,19,65,125,11,135,201,66,249,16,32,128,66,44,11,66,56,17,
6221	68,143,8,68,124,38,67,183,12,96,211,9,65,143,29,112,171,5,32,0,68,131,63,34,33,53,51,71,121,11,32,254,98,251,16,32,253,74,231,10,65,175,37,133,206,37,0,0,8,1,0,0,107,123,11,113,115,
6222	9,33,0,1,130,117,131,3,73,103,7,66,51,18,66,44,5,133,75,70,88,5,32,254,65,39,12,68,80,9,34,12,0,128,107,179,28,68,223,6,155,111,86,147,15,32,2,131,82,141,110,33,254,0,130,15,32,4,103,
6223	184,15,141,35,87,176,5,83,11,5,71,235,23,114,107,11,65,189,16,70,33,15,86,153,31,135,126,86,145,30,65,183,41,32,0,130,0,32,10,65,183,24,34,35,0,39,67,85,9,65,179,15,143,15,33,1,0,65,
6224	28,17,157,136,130,123,32,20,130,3,32,0,97,135,24,115,167,19,80,71,12,32,51,110,163,14,78,35,19,131,19,155,23,77,229,8,78,9,17,151,17,67,231,46,94,135,8,73,31,31,93,215,56,82,171,25,
6225	72,77,8,162,179,169,167,99,131,11,69,85,19,66,215,15,76,129,13,68,115,22,72,79,35,67,113,5,34,0,0,19,70,31,46,65,89,52,73,223,15,85,199,33,95,33,8,132,203,73,29,32,67,48,16,177,215,
6226	101,13,15,65,141,43,69,141,15,75,89,5,70,0,11,70,235,21,178,215,36,10,0,128,0,0,71,207,24,33,0,19,100,67,6,80,215,11,66,67,7,80,43,12,71,106,7,80,192,5,65,63,5,66,217,26,33,0,13,156,
6227	119,68,95,5,72,233,12,134,129,85,81,11,76,165,20,65,43,8,73,136,8,75,10,31,38,128,128,0,0,0,13,1,130,4,32,3,106,235,29,114,179,12,66,131,23,32,7,77,133,6,67,89,12,131,139,116,60,9,
6228	89,15,37,32,0,74,15,7,103,11,22,65,35,5,33,55,0,93,81,28,67,239,23,78,85,5,107,93,14,66,84,17,65,193,26,74,183,10,66,67,34,143,135,79,91,15,32,7,117,111,8,75,56,9,84,212,9,154,134,
6229	32,0,130,0,32,18,130,3,70,171,41,83,7,16,70,131,19,84,191,15,84,175,19,84,167,30,84,158,12,154,193,68,107,15,33,0,0,65,79,42,65,71,7,73,55,7,118,191,16,83,180,9,32,255,76,166,9,154,
6230	141,32,0,130,0,69,195,52,65,225,15,151,15,75,215,31,80,56,10,68,240,17,100,32,9,70,147,39,65,93,12,71,71,41,92,85,15,84,135,23,78,35,15,110,27,10,84,125,8,107,115,29,136,160,38,0,0,
6231	14,0,128,255,0,82,155,24,67,239,8,119,255,11,69,131,11,77,29,6,112,31,8,134,27,105,203,8,32,2,75,51,11,75,195,12,74,13,29,136,161,37,128,0,0,0,11,1,130,163,82,115,8,125,191,17,69,35,
6232	12,74,137,15,143,15,32,1,65,157,12,136,12,161,142,65,43,40,65,199,6,65,19,24,102,185,11,76,123,11,99,6,12,135,12,32,254,130,8,161,155,101,23,9,39,8,0,0,1,128,3,128,2,78,63,17,72,245,
6233	12,67,41,11,90,167,9,32,128,97,49,9,32,128,109,51,14,132,97,81,191,8,130,97,125,99,12,121,35,9,127,75,15,71,79,12,81,151,23,87,97,7,70,223,15,80,245,16,105,97,15,32,254,113,17,6,32,
6234	128,130,8,105,105,8,76,122,18,65,243,21,74,63,7,38,4,1,0,255,0,2,0,119,247,28,133,65,32,255,141,91,35,0,0,0,16,67,63,36,34,59,0,63,77,59,9,119,147,11,143,241,66,173,15,66,31,11,67,
6235	75,8,81,74,16,32,128,131,255,87,181,42,127,43,5,34,255,128,2,120,235,11,37,19,0,23,0,0,37,109,191,14,118,219,7,127,43,14,65,79,14,35,0,0,0,3,73,91,5,130,5,38,3,0,7,0,11,0,0,70,205,
6236	11,88,221,12,32,0,73,135,7,87,15,22,73,135,10,79,153,15,97,71,19,65,49,11,32,1,131,104,121,235,11,80,65,11,142,179,144,14,81,123,46,32,1,88,217,5,112,5,8,65,201,15,83,29,15,122,147,
6237	11,135,179,142,175,143,185,67,247,39,66,199,7,35,5,0,128,3,69,203,15,123,163,12,67,127,7,130,119,71,153,10,141,102,70,175,8,32,128,121,235,30,136,89,100,191,11,116,195,11,111,235,15,
6238	72,39,7,32,2,97,43,5,132,5,94,67,8,131,8,125,253,10,32,3,65,158,16,146,16,130,170,40,0,21,0,128,0,0,3,128,5,88,219,15,24,64,159,32,135,141,65,167,15,68,163,10,97,73,49,32,255,82,58,
6239	7,93,80,8,97,81,16,24,67,87,52,34,0,0,5,130,231,33,128,2,80,51,13,65,129,8,113,61,6,132,175,65,219,5,130,136,77,152,17,32,0,95,131,61,70,215,6,33,21,51,90,53,10,78,97,23,105,77,31,
6240	65,117,7,139,75,24,68,195,9,24,64,22,9,33,0,128,130,11,33,128,128,66,25,5,121,38,5,134,5,134,45,66,40,36,66,59,18,34,128,0,0,66,59,81,135,245,123,103,19,120,159,19,77,175,12,33,255,
6241	0,87,29,10,94,70,21,66,59,54,39,3,1,128,3,0,2,128,4,24,65,7,15,66,47,7,72,98,12,37,0,0,0,3,1,0,24,65,55,21,131,195,32,1,67,178,6,33,4,0,77,141,8,32,6,131,47,74,67,16,24,69,3,20,24,
6242	65,251,7,133,234,130,229,94,108,17,35,0,0,6,0,141,175,86,59,5,162,79,85,166,8,70,112,13,32,13,24,64,67,26,24,71,255,7,123,211,12,80,121,11,69,215,15,66,217,11,69,71,10,131,113,132,
6243	126,119,90,9,66,117,19,132,19,32,0,130,0,24,64,47,59,33,7,0,73,227,5,68,243,15,85,13,12,76,37,22,74,254,15,130,138,33,0,4,65,111,6,137,79,65,107,16,32,1,77,200,6,34,128,128,3,75,154,
6244	12,37,0,16,0,0,2,0,104,115,36,140,157,68,67,19,68,51,15,106,243,15,134,120,70,37,10,68,27,10,140,152,65,121,24,32,128,94,155,7,67,11,8,24,74,11,25,65,3,12,83,89,18,82,21,37,67,200,
6245	5,130,144,24,64,172,12,33,4,0,134,162,74,80,14,145,184,32,0,130,0,69,251,20,32,19,81,243,5,82,143,8,33,5,53,89,203,5,133,112,79,109,15,33,0,21,130,71,80,175,41,36,75,0,79,0,83,121,
6246	117,9,87,89,27,66,103,11,70,13,15,75,191,11,135,67,87,97,20,109,203,5,69,246,8,108,171,5,78,195,38,65,51,13,107,203,11,77,3,17,24,75,239,17,65,229,28,79,129,39,130,175,32,128,123,253,
6247	7,132,142,24,65,51,15,65,239,41,36,128,128,0,0,13,65,171,5,66,163,28,136,183,118,137,11,80,255,15,67,65,7,74,111,8,32,0,130,157,32,253,24,76,35,10,103,212,5,81,175,9,69,141,7,66,150,
6248	29,131,158,24,75,199,28,124,185,7,76,205,15,68,124,14,32,3,123,139,16,130,16,33,128,128,108,199,6,33,0,3,65,191,35,107,11,6,73,197,11,24,70,121,15,83,247,15,24,70,173,23,69,205,14,
6249	32,253,131,140,32,254,136,4,94,198,9,32,3,78,4,13,66,127,13,143,13,32,0,130,0,33,16,0,24,69,59,39,109,147,12,76,253,19,24,69,207,15,69,229,15,130,195,71,90,10,139,10,130,152,73,43,
6250	40,91,139,10,65,131,37,35,75,0,79,0,84,227,12,143,151,68,25,15,80,9,23,95,169,11,34,128,2,128,112,186,5,130,6,83,161,19,76,50,6,130,37,65,145,44,110,83,5,32,16,67,99,6,71,67,15,76,
6251	55,17,140,215,67,97,23,76,69,15,77,237,11,104,211,23,77,238,11,65,154,43,33,0,10,83,15,28,83,13,20,67,145,19,67,141,14,97,149,21,68,9,15,86,251,5,66,207,5,66,27,37,82,1,23,127,71,12,
6252	94,235,10,110,175,24,98,243,15,132,154,132,4,24,66,69,10,32,4,67,156,43,130,198,35,2,1,0,4,75,27,9,69,85,9,95,240,7,32,128,130,35,32,28,66,43,40,24,82,63,23,83,123,12,72,231,15,127,
6253	59,23,116,23,19,117,71,7,24,77,99,15,67,111,15,71,101,8,36,2,128,128,252,128,127,60,11,32,1,132,16,130,18,141,24,67,107,9,32,3,68,194,15,175,15,38,0,11,0,128,1,128,2,80,63,25,32,0,
6254	24,65,73,11,69,185,15,83,243,16,32,0,24,81,165,8,130,86,77,35,6,155,163,88,203,5,24,66,195,30,70,19,19,24,80,133,15,32,1,75,211,8,32,254,108,133,8,79,87,20,65,32,9,41,0,0,7,0,128,0,
6255	0,2,128,2,68,87,15,66,1,16,92,201,16,24,76,24,17,133,17,34,128,0,30,66,127,64,34,115,0,119,73,205,9,66,43,11,109,143,15,24,79,203,11,90,143,15,131,15,155,31,65,185,15,86,87,11,35,128,
6256	128,253,0,69,7,6,130,213,33,1,0,119,178,15,142,17,66,141,74,83,28,6,36,7,0,0,4,128,82,39,18,76,149,12,67,69,21,32,128,79,118,15,32,0,130,0,32,8,131,206,32,2,79,83,9,100,223,14,102,
6257	113,23,115,115,7,24,65,231,12,130,162,32,4,68,182,19,130,102,93,143,8,69,107,29,24,77,255,12,143,197,72,51,7,76,195,15,132,139,85,49,15,130,152,131,18,71,81,23,70,14,11,36,0,10,0,128,
6258	2,69,59,9,89,151,15,66,241,11,76,165,12,71,43,15,75,49,13,65,12,23,132,37,32,0,179,115,130,231,95,181,16,132,77,32,254,67,224,8,65,126,20,79,171,8,32,2,89,81,5,75,143,6,80,41,8,34,
6259	2,0,128,24,81,72,9,32,0,130,0,35,17,0,0,255,77,99,39,95,65,36,67,109,15,24,69,93,11,77,239,5,95,77,23,35,128,1,0,128,24,86,7,8,132,167,32,2,69,198,41,130,202,33,0,26,120,75,44,24,89,
6260	51,15,71,243,12,70,239,11,24,84,3,11,66,7,11,71,255,10,32,21,69,155,35,88,151,12,32,128,74,38,10,65,210,8,74,251,5,65,226,5,75,201,13,32,3,65,9,41,146,41,40,0,0,0,9,1,0,1,0,2,91,99,
6261	19,32,35,106,119,13,70,219,15,83,239,12,137,154,32,2,67,252,19,36,128,0,0,4,1,130,196,32,2,130,8,91,107,8,32,0,135,81,24,73,211,8,132,161,73,164,13,36,0,8,0,128,2,105,123,26,139,67,
6262	76,99,15,34,1,0,128,135,76,83,156,20,92,104,8,67,251,30,24,86,47,27,123,207,12,24,86,7,15,71,227,8,32,4,65,20,20,131,127,32,0,130,123,32,0,71,223,26,32,19,90,195,22,71,223,15,84,200,
6263	6,32,128,133,241,24,84,149,9,67,41,25,36,0,0,0,22,0,88,111,49,32,87,66,21,5,77,3,27,123,75,7,71,143,19,135,183,71,183,19,130,171,74,252,5,131,5,89,87,17,32,1,132,18,130,232,68,11,10,
6264	33,1,128,70,208,16,66,230,18,147,18,130,254,223,255,75,27,23,65,59,15,135,39,155,255,34,128,128,254,104,92,8,33,0,128,65,32,11,65,1,58,33,26,0,130,0,72,71,18,78,55,17,76,11,19,86,101,
6265	12,75,223,11,89,15,11,24,76,87,15,75,235,15,131,15,72,95,7,85,71,11,72,115,11,73,64,6,34,1,128,128,66,215,9,34,128,254,128,134,14,33,128,255,67,102,5,32,0,130,16,70,38,11,66,26,57,
6266	88,11,8,24,76,215,34,78,139,7,95,245,7,32,7,24,73,75,23,32,128,131,167,130,170,101,158,9,82,49,22,118,139,6,32,18,67,155,44,116,187,9,108,55,14,80,155,23,66,131,15,93,77,10,131,168,
6267	32,128,73,211,12,24,75,187,22,32,4,96,71,20,67,108,19,132,19,120,207,8,32,5,76,79,15,66,111,21,66,95,8,32,3,190,211,111,3,8,211,212,32,20,65,167,44,34,75,0,79,97,59,13,32,33,112,63,
6268	10,65,147,19,69,39,19,143,39,24,66,71,9,130,224,65,185,43,94,176,12,65,183,24,71,38,8,24,72,167,7,65,191,38,136,235,24,96,167,12,65,203,62,115,131,13,65,208,42,175,235,67,127,6,32,
6269	4,76,171,29,114,187,5,32,71,65,211,5,65,203,68,72,51,8,164,219,32,0,172,214,71,239,58,78,3,27,66,143,15,77,19,15,147,31,35,33,53,51,21,66,183,10,173,245,66,170,30,150,30,34,0,0,23,
6270	80,123,54,76,1,16,73,125,15,82,245,11,167,253,24,76,85,12,70,184,5,32,254,131,185,37,254,0,128,1,0,128,133,16,117,158,18,92,27,38,65,3,17,130,251,35,17,0,128,254,24,69,83,39,140,243,
6271	121,73,19,109,167,7,81,41,15,24,95,175,12,102,227,15,121,96,11,24,95,189,7,32,3,145,171,154,17,24,77,47,9,33,0,5,70,71,37,68,135,7,32,29,117,171,11,69,87,15,24,79,97,19,24,79,149,23,
6272	131,59,32,1,75,235,5,72,115,11,72,143,7,132,188,71,27,46,131,51,32,0,69,95,6,175,215,32,21,131,167,81,15,19,151,191,151,23,131,215,71,43,5,32,254,24,79,164,24,74,109,8,77,166,13,65,
6273	176,26,88,162,5,98,159,6,171,219,120,247,6,79,29,8,99,169,10,103,59,19,65,209,35,131,35,91,25,19,112,94,15,83,36,8,173,229,33,20,0,88,75,43,71,31,12,65,191,71,33,1,0,130,203,32,254,
6274	131,4,68,66,7,67,130,6,104,61,13,173,215,38,13,1,0,0,0,2,128,67,111,28,74,129,16,104,35,19,79,161,16,87,14,7,138,143,132,10,67,62,36,114,115,5,162,151,67,33,16,108,181,15,143,151,67,
6275	5,5,24,100,242,15,170,153,34,0,0,14,65,51,34,32,55,79,75,9,32,51,74,7,10,65,57,38,132,142,32,254,72,0,14,139,163,32,128,80,254,8,67,158,21,65,63,7,32,4,72,227,27,95,155,12,67,119,19,
6276	124,91,24,149,154,72,177,34,97,223,8,155,151,24,108,227,15,88,147,16,72,117,19,68,35,11,92,253,15,70,199,15,24,87,209,17,32,2,87,233,7,32,1,24,88,195,10,119,24,8,32,3,81,227,24,65,
6277	125,21,35,128,128,0,25,76,59,48,24,90,187,9,97,235,12,66,61,11,91,105,19,24,79,141,11,24,79,117,15,24,79,129,27,90,53,13,130,13,32,253,131,228,24,79,133,40,69,70,8,66,137,31,65,33,
6278	19,96,107,8,68,119,29,66,7,5,68,125,16,65,253,19,65,241,27,24,90,179,13,24,79,143,18,33,128,128,130,246,32,254,130,168,68,154,36,77,51,9,97,47,5,167,195,32,21,131,183,78,239,27,155,
6279	195,78,231,14,201,196,77,11,6,32,5,73,111,37,97,247,12,77,19,31,155,207,78,215,19,162,212,69,17,14,66,91,19,80,143,57,78,203,39,159,215,32,128,93,134,8,24,80,109,24,66,113,15,169,215,
6280	66,115,6,32,4,69,63,33,32,0,101,113,7,86,227,35,143,211,36,49,53,51,21,1,77,185,14,65,159,28,69,251,34,67,56,8,33,9,0,24,107,175,25,90,111,12,110,251,11,119,189,24,119,187,34,87,15,
6281	9,32,4,66,231,37,90,39,7,66,239,8,84,219,15,69,105,23,24,85,27,27,87,31,11,33,1,128,76,94,6,32,1,85,241,7,33,128,128,106,48,10,33,128,128,69,136,11,133,13,24,79,116,49,84,236,8,24,
6282	91,87,9,32,5,165,255,69,115,12,66,27,15,159,15,24,72,247,12,74,178,5,24,80,64,15,33,0,128,143,17,77,89,51,130,214,24,81,43,7,170,215,74,49,8,159,199,143,31,139,215,69,143,5,32,254,
6283	24,81,50,35,181,217,84,123,70,143,195,159,15,65,187,16,66,123,7,65,175,15,65,193,29,68,207,39,79,27,5,70,131,6,32,4,68,211,33,33,67,0,83,143,14,159,207,143,31,140,223,33,0,128,24,80,
6284	82,14,24,93,16,23,32,253,65,195,5,68,227,40,133,214,107,31,7,32,5,67,115,27,87,9,8,107,31,43,66,125,6,32,0,103,177,23,131,127,72,203,36,32,0,110,103,8,155,163,73,135,6,32,19,24,112,
6285	99,10,65,71,11,73,143,19,143,31,126,195,5,24,85,21,9,24,76,47,14,32,254,24,93,77,36,68,207,11,39,25,0,0,255,128,3,128,4,66,51,37,95,247,13,82,255,24,76,39,19,147,221,66,85,27,24,118,
6286	7,8,24,74,249,12,76,74,8,91,234,8,67,80,17,131,222,33,253,0,121,30,44,73,0,16,69,15,6,32,0,65,23,38,69,231,12,65,179,6,98,131,16,86,31,27,24,108,157,14,80,160,8,24,65,46,17,33,4,0,
6287	96,2,18,144,191,65,226,8,68,19,5,171,199,80,9,15,180,199,67,89,5,32,255,24,79,173,28,174,201,24,79,179,50,32,1,24,122,5,10,82,61,10,180,209,83,19,8,32,128,24,80,129,27,111,248,43,131,
6288	71,24,115,103,8,67,127,41,78,213,24,100,247,19,66,115,39,75,107,5,32,254,165,219,78,170,40,24,112,163,49,32,1,97,203,6,65,173,64,32,0,83,54,7,133,217,88,37,12,32,254,131,28,33,128,
6289	3,67,71,44,84,183,6,32,5,69,223,33,96,7,7,123,137,16,192,211,24,112,14,9,32,255,67,88,29,68,14,10,84,197,38,33,0,22,116,47,50,32,87,106,99,9,116,49,15,89,225,15,97,231,23,70,41,19,
6290	82,85,8,93,167,6,32,253,132,236,108,190,7,89,251,5,116,49,58,33,128,128,131,234,32,15,24,74,67,38,70,227,24,24,83,45,23,89,219,12,70,187,12,89,216,19,32,2,69,185,24,141,24,70,143,66,
6291	24,82,119,56,78,24,10,32,253,133,149,132,6,24,106,233,7,69,198,48,178,203,81,243,12,68,211,15,106,255,23,66,91,15,69,193,7,100,39,10,24,83,72,16,176,204,33,19,0,88,207,45,68,21,12,
6292	68,17,10,65,157,53,68,17,6,32,254,92,67,10,65,161,25,69,182,43,24,118,91,47,69,183,18,181,209,111,253,12,89,159,8,66,112,12,69,184,45,35,0,0,0,9,24,80,227,26,73,185,16,118,195,15,131,
6293	15,33,1,0,65,59,15,66,39,27,160,111,66,205,12,148,111,143,110,33,128,128,156,112,24,81,199,8,75,199,23,66,117,20,155,121,32,254,68,126,12,72,213,29,134,239,149,123,89,27,16,148,117,
6294	65,245,8,24,71,159,14,141,134,134,28,73,51,55,109,77,15,105,131,11,68,67,11,76,169,27,107,209,12,102,174,8,32,128,72,100,18,116,163,56,79,203,11,75,183,44,85,119,19,71,119,23,151,227,
6295	32,1,93,27,8,65,122,5,77,102,8,110,120,20,66,23,8,66,175,17,66,63,12,133,12,79,35,8,74,235,33,67,149,16,69,243,15,78,57,15,69,235,16,67,177,7,151,192,130,23,67,84,29,141,192,174,187,
6296	77,67,15,69,11,12,159,187,77,59,10,199,189,24,70,235,50,96,83,19,66,53,23,105,65,19,77,47,12,163,199,66,67,37,78,207,50,67,23,23,174,205,67,228,6,71,107,13,67,22,14,66,85,11,83,187,
6297	38,124,47,49,95,7,19,66,83,23,67,23,19,24,96,78,17,80,101,16,71,98,40,33,0,7,88,131,22,24,89,245,12,84,45,12,102,213,5,123,12,9,32,2,126,21,14,43,255,0,128,128,0,0,20,0,128,255,128,
6298	3,126,19,39,32,75,106,51,7,113,129,15,24,110,135,19,126,47,15,115,117,11,69,47,11,32,2,109,76,9,102,109,9,32,128,75,2,10,130,21,32,254,69,47,6,32,3,94,217,47,32,0,65,247,10,69,15,46,
6299	65,235,31,65,243,15,101,139,10,66,174,14,65,247,16,72,102,28,69,17,14,84,243,9,165,191,88,47,48,66,53,12,32,128,71,108,6,203,193,32,17,75,187,42,73,65,16,65,133,52,114,123,9,167,199,
6300	69,21,37,86,127,44,75,171,11,180,197,78,213,12,148,200,81,97,46,24,95,243,9,32,4,66,75,33,113,103,9,87,243,36,143,225,24,84,27,31,90,145,8,148,216,67,49,5,24,84,34,14,75,155,27,67,
6301	52,13,140,13,36,0,20,0,128,255,24,135,99,46,88,59,43,155,249,80,165,7,136,144,71,161,23,32,253,132,33,32,254,88,87,44,136,84,35,128,0,0,21,81,103,5,94,47,44,76,51,12,143,197,151,15,
6302	65,215,31,24,64,77,13,65,220,20,65,214,14,71,4,40,65,213,13,32,0,130,0,35,21,1,2,0,135,0,34,36,0,72,134,10,36,1,0,26,0,130,134,11,36,2,0,14,0,108,134,11,32,3,138,23,32,4,138,11,34,
6303	5,0,20,134,33,34,0,0,6,132,23,32,1,134,15,32,18,130,25,133,11,37,1,0,13,0,49,0,133,11,36,2,0,7,0,38,134,11,36,3,0,17,0,45,134,11,32,4,138,35,36,5,0,10,0,62,134,23,32,6,132,23,36,3,
6304	0,1,4,9,130,87,131,167,133,11,133,167,133,11,133,167,133,11,37,3,0,34,0,122,0,133,11,133,167,133,11,133,167,133,11,133,167,34,50,0,48,130,1,34,52,0,47,134,5,8,49,49,0,53,98,121,32,
6305	84,114,105,115,116,97,110,32,71,114,105,109,109,101,114,82,101,103,117,108,97,114,84,84,88,32,80,114,111,103,103,121,67,108,101,97,110,84,84,50,48,48,52,47,130,2,53,49,53,0,98,0,121,
6306	0,32,0,84,0,114,0,105,0,115,0,116,0,97,0,110,130,15,32,71,132,15,36,109,0,109,0,101,130,9,32,82,130,5,36,103,0,117,0,108,130,29,32,114,130,43,34,84,0,88,130,35,32,80,130,25,34,111,
6307	0,103,130,1,34,121,0,67,130,27,32,101,132,59,32,84,130,31,33,0,0,65,155,9,34,20,0,0,65,11,6,130,8,135,2,33,1,1,130,9,8,120,1,1,2,1,3,1,4,1,5,1,6,1,7,1,8,1,9,1,10,1,11,1,12,1,13,1,14,
6308	1,15,1,16,1,17,1,18,1,19,1,20,1,21,1,22,1,23,1,24,1,25,1,26,1,27,1,28,1,29,1,30,1,31,1,32,0,3,0,4,0,5,0,6,0,7,0,8,0,9,0,10,0,11,0,12,0,13,0,14,0,15,0,16,0,17,0,18,0,19,0,20,0,21,0,
6309	22,0,23,0,24,0,25,0,26,0,27,0,28,0,29,0,30,0,31,130,187,8,66,33,0,34,0,35,0,36,0,37,0,38,0,39,0,40,0,41,0,42,0,43,0,44,0,45,0,46,0,47,0,48,0,49,0,50,0,51,0,52,0,53,0,54,0,55,0,56,0,
6310	57,0,58,0,59,0,60,0,61,0,62,0,63,0,64,0,65,0,66,130,243,9,75,68,0,69,0,70,0,71,0,72,0,73,0,74,0,75,0,76,0,77,0,78,0,79,0,80,0,81,0,82,0,83,0,84,0,85,0,86,0,87,0,88,0,89,0,90,0,91,0,
6311	92,0,93,0,94,0,95,0,96,0,97,1,33,1,34,1,35,1,36,1,37,1,38,1,39,1,40,1,41,1,42,1,43,1,44,1,45,1,46,1,47,1,48,1,49,1,50,1,51,1,52,1,53,1,54,1,55,1,56,1,57,1,58,1,59,1,60,1,61,1,62,1,
6312	63,1,64,1,65,0,172,0,163,0,132,0,133,0,189,0,150,0,232,0,134,0,142,0,139,0,157,0,169,0,164,0,239,0,138,0,218,0,131,0,147,0,242,0,243,0,141,0,151,0,136,0,195,0,222,0,241,0,158,0,170,
6313	0,245,0,244,0,246,0,162,0,173,0,201,0,199,0,174,0,98,0,99,0,144,0,100,0,203,0,101,0,200,0,202,0,207,0,204,0,205,0,206,0,233,0,102,0,211,0,208,0,209,0,175,0,103,0,240,0,145,0,214,0,
6314	212,0,213,0,104,0,235,0,237,0,137,0,106,0,105,0,107,0,109,0,108,0,110,0,160,0,111,0,113,0,112,0,114,0,115,0,117,0,116,0,118,0,119,0,234,0,120,0,122,0,121,0,123,0,125,0,124,0,184,0,
6315	161,0,127,0,126,0,128,0,129,0,236,0,238,0,186,14,117,110,105,99,111,100,101,35,48,120,48,48,48,49,141,14,32,50,141,14,32,51,141,14,32,52,141,14,32,53,141,14,32,54,141,14,32,55,141,
6316	14,32,56,141,14,32,57,141,14,32,97,141,14,32,98,141,14,32,99,141,14,32,100,141,14,32,101,141,14,32,102,140,14,33,49,48,141,14,141,239,32,49,141,239,32,49,141,239,32,49,141,239,32,49,
6317	141,239,32,49,141,239,32,49,141,239,32,49,141,239,32,49,141,239,32,49,141,239,32,49,141,239,32,49,141,239,32,49,141,239,32,49,141,239,45,49,102,6,100,101,108,101,116,101,4,69,117,114,
6318	111,140,236,32,56,141,236,32,56,141,236,32,56,141,236,32,56,141,236,32,56,141,236,32,56,141,236,32,56,141,236,32,56,141,236,32,56,141,236,32,56,141,236,32,56,141,236,32,56,141,236,
6319	32,56,141,236,32,56,141,236,32,56,65,220,13,32,57,65,220,13,32,57,141,239,32,57,141,239,32,57,141,239,32,57,141,239,32,57,141,239,32,57,141,239,32,57,141,239,32,57,141,239,32,57,141,
6320	239,32,57,141,239,32,57,141,239,32,57,141,239,32,57,141,239,32,57,141,239,35,57,102,0,0,5,250,72,249,98,247,
6321	};
6322
6323	static const char* GetDefaultCompressedFontDataTTF(int* out_size)
6324	{
6325	*out_size = proggy_clean_ttf_compressed_size;
6326	return (const char*)proggy_clean_ttf_compressed_data;
6327	}
6328	#endif // #ifndef IMGUI_DISABLE_DEFAULT_FONT
6329
6330	#endif // #ifndef IMGUI_DISABLE
6331