Added few more stubs so that control reaches to DestroyDevice().
[mesa.git] / src / imgui / imgui_draw.cpp
1 // dear imgui, v1.68 WIP
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] ImDrawData
12 // [SECTION] Helpers ShadeVertsXXX functions
13 // [SECTION] ImFontConfig
14 // [SECTION] ImFontAtlas
15 // [SECTION] ImFontAtlas glyph ranges helpers
16 // [SECTION] ImFontGlyphRangesBuilder
17 // [SECTION] ImFont
18 // [SECTION] Internal Render Helpers
19 // [SECTION] Decompression code
20 // [SECTION] Default font data (ProggyClean.ttf)
21
22 */
23
24 #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
25 #define _CRT_SECURE_NO_WARNINGS
26 #endif
27
28 #include "imgui.h"
29 #ifndef IMGUI_DEFINE_MATH_OPERATORS
30 #define IMGUI_DEFINE_MATH_OPERATORS
31 #endif
32 #include "imgui_internal.h"
33
34 #include <stdio.h> // vsnprintf, sscanf, printf
35 #if !defined(alloca)
36 #if defined(__GLIBC__) || defined(__sun) || defined(__CYGWIN__) || defined(__APPLE__)
37 #include <alloca.h> // alloca (glibc uses <alloca.h>. Note that Cygwin may have _WIN32 defined, so the order matters here)
38 #elif defined(_WIN32)
39 #include <malloc.h> // alloca
40 #if !defined(alloca)
41 #define alloca _alloca // for clang with MS Codegen
42 #endif
43 #else
44 #include <stdlib.h> // alloca
45 #endif
46 #endif
47
48 // Visual Studio warnings
49 #ifdef _MSC_VER
50 #pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff)
51 #pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
52 #endif
53
54 // Clang/GCC warnings with -Weverything
55 #ifdef __clang__
56 #pragma clang diagnostic ignored "-Wold-style-cast" // warning : use of old-style cast // yes, they are more terse.
57 #pragma clang diagnostic ignored "-Wfloat-equal" // warning : comparing floating point with == or != is unsafe // storing and comparing against same constants ok.
58 #pragma clang diagnostic ignored "-Wglobal-constructors" // warning : declaration requires a global destructor // similar to above, not sure what the exact difference it.
59 #pragma clang diagnostic ignored "-Wsign-conversion" // warning : implicit conversion changes signedness //
60 #if __has_warning("-Wzero-as-null-pointer-constant")
61 #pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" // warning : zero as null pointer constant // some standard header variations use #define NULL 0
62 #endif
63 #if __has_warning("-Wcomma")
64 #pragma clang diagnostic ignored "-Wcomma" // warning : possible misuse of comma operator here //
65 #endif
66 #if __has_warning("-Wreserved-id-macro")
67 #pragma clang diagnostic ignored "-Wreserved-id-macro" // warning : macro name is a reserved identifier //
68 #endif
69 #if __has_warning("-Wdouble-promotion")
70 #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.
71 #endif
72 #elif defined(__GNUC__)
73 #pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used
74 #pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function
75 #pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value
76 #if __GNUC__ >= 8
77 #pragma GCC diagnostic ignored "-Wclass-memaccess" // warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
78 #endif
79 #endif
80
81 //-------------------------------------------------------------------------
82 // [SECTION] STB libraries implementation
83 //-------------------------------------------------------------------------
84
85 // Compile time options:
86 //#define IMGUI_STB_NAMESPACE ImGuiStb
87 //#define IMGUI_STB_TRUETYPE_FILENAME "my_folder/stb_truetype.h"
88 //#define IMGUI_STB_RECT_PACK_FILENAME "my_folder/stb_rect_pack.h"
89 //#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
90 //#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
91
92 #ifdef IMGUI_STB_NAMESPACE
93 namespace IMGUI_STB_NAMESPACE
94 {
95 #endif
96
97 #ifdef _MSC_VER
98 #pragma warning (push)
99 #pragma warning (disable: 4456) // declaration of 'xx' hides previous local declaration
100 #endif
101
102 #ifdef __clang__
103 #pragma clang diagnostic push
104 #pragma clang diagnostic ignored "-Wunused-function"
105 #pragma clang diagnostic ignored "-Wmissing-prototypes"
106 #pragma clang diagnostic ignored "-Wimplicit-fallthrough"
107 #pragma clang diagnostic ignored "-Wcast-qual" // warning : cast from 'const xxxx *' to 'xxx *' drops const qualifier //
108 #endif
109
110 #ifdef __GNUC__
111 #pragma GCC diagnostic push
112 #pragma GCC diagnostic ignored "-Wtype-limits" // warning: comparison is always true due to limited range of data type [-Wtype-limits]
113 #pragma GCC diagnostic ignored "-Wcast-qual" // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers
114 #endif
115
116 #ifndef STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
117 #ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
118 #define STBRP_STATIC
119 #define STBRP_ASSERT(x) IM_ASSERT(x)
120 #define STBRP_SORT ImQsort
121 #define STB_RECT_PACK_IMPLEMENTATION
122 #endif
123 #ifdef IMGUI_STB_RECT_PACK_FILENAME
124 #include IMGUI_STB_RECT_PACK_FILENAME
125 #else
126 #include "imstb_rectpack.h"
127 #endif
128 #endif
129
130 #ifndef STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
131 #ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
132 #define STBTT_malloc(x,u) ((void)(u), ImGui::MemAlloc(x))
133 #define STBTT_free(x,u) ((void)(u), ImGui::MemFree(x))
134 #define STBTT_assert(x) IM_ASSERT(x)
135 #define STBTT_fmod(x,y) ImFmod(x,y)
136 #define STBTT_sqrt(x) ImSqrt(x)
137 #define STBTT_pow(x,y) ImPow(x,y)
138 #define STBTT_fabs(x) ImFabs(x)
139 #define STBTT_ifloor(x) ((int)ImFloorStd(x))
140 #define STBTT_iceil(x) ((int)ImCeil(x))
141 #define STBTT_STATIC
142 #define STB_TRUETYPE_IMPLEMENTATION
143 #else
144 #define STBTT_DEF extern
145 #endif
146 #ifdef IMGUI_STB_TRUETYPE_FILENAME
147 #include IMGUI_STB_TRUETYPE_FILENAME
148 #else
149 #include "imstb_truetype.h"
150 #endif
151 #endif
152
153 #ifdef __GNUC__
154 #pragma GCC diagnostic pop
155 #endif
156
157 #ifdef __clang__
158 #pragma clang diagnostic pop
159 #endif
160
161 #ifdef _MSC_VER
162 #pragma warning (pop)
163 #endif
164
165 #ifdef IMGUI_STB_NAMESPACE
166 } // namespace ImGuiStb
167 using namespace IMGUI_STB_NAMESPACE;
168 #endif
169
170 //-----------------------------------------------------------------------------
171 // [SECTION] Style functions
172 //-----------------------------------------------------------------------------
173
174 void ImGui::StyleColorsDark(ImGuiStyle* dst)
175 {
176 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
177 ImVec4* colors = style->Colors;
178
179 colors[ImGuiCol_Text] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
180 colors[ImGuiCol_TextDisabled] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
181 colors[ImGuiCol_WindowBg] = ImVec4(0.06f, 0.06f, 0.06f, 0.94f);
182 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
183 colors[ImGuiCol_PopupBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
184 colors[ImGuiCol_Border] = ImVec4(0.43f, 0.43f, 0.50f, 0.50f);
185 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
186 colors[ImGuiCol_FrameBg] = ImVec4(0.16f, 0.29f, 0.48f, 0.54f);
187 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
188 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
189 colors[ImGuiCol_TitleBg] = ImVec4(0.04f, 0.04f, 0.04f, 1.00f);
190 colors[ImGuiCol_TitleBgActive] = ImVec4(0.16f, 0.29f, 0.48f, 1.00f);
191 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.00f, 0.00f, 0.51f);
192 colors[ImGuiCol_MenuBarBg] = ImVec4(0.14f, 0.14f, 0.14f, 1.00f);
193 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.02f, 0.02f, 0.02f, 0.53f);
194 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.31f, 0.31f, 0.31f, 1.00f);
195 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.41f, 0.41f, 0.41f, 1.00f);
196 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.51f, 0.51f, 0.51f, 1.00f);
197 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
198 colors[ImGuiCol_SliderGrab] = ImVec4(0.24f, 0.52f, 0.88f, 1.00f);
199 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
200 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
201 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
202 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
203 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
204 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
205 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
206 colors[ImGuiCol_Separator] = colors[ImGuiCol_Border];
207 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.10f, 0.40f, 0.75f, 0.78f);
208 colors[ImGuiCol_SeparatorActive] = ImVec4(0.10f, 0.40f, 0.75f, 1.00f);
209 colors[ImGuiCol_ResizeGrip] = ImVec4(0.26f, 0.59f, 0.98f, 0.25f);
210 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
211 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
212 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
213 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
214 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
215 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
216 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
217 colors[ImGuiCol_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
218 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
219 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
220 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
221 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
222 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
223 colors[ImGuiCol_NavHighlight] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
224 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
225 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
226 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.35f);
227 }
228
229 void ImGui::StyleColorsClassic(ImGuiStyle* dst)
230 {
231 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
232 ImVec4* colors = style->Colors;
233
234 colors[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
235 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
236 colors[ImGuiCol_WindowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.70f);
237 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
238 colors[ImGuiCol_PopupBg] = ImVec4(0.11f, 0.11f, 0.14f, 0.92f);
239 colors[ImGuiCol_Border] = ImVec4(0.50f, 0.50f, 0.50f, 0.50f);
240 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
241 colors[ImGuiCol_FrameBg] = ImVec4(0.43f, 0.43f, 0.43f, 0.39f);
242 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.47f, 0.47f, 0.69f, 0.40f);
243 colors[ImGuiCol_FrameBgActive] = ImVec4(0.42f, 0.41f, 0.64f, 0.69f);
244 colors[ImGuiCol_TitleBg] = ImVec4(0.27f, 0.27f, 0.54f, 0.83f);
245 colors[ImGuiCol_TitleBgActive] = ImVec4(0.32f, 0.32f, 0.63f, 0.87f);
246 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.40f, 0.40f, 0.80f, 0.20f);
247 colors[ImGuiCol_MenuBarBg] = ImVec4(0.40f, 0.40f, 0.55f, 0.80f);
248 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.20f, 0.25f, 0.30f, 0.60f);
249 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.40f, 0.40f, 0.80f, 0.30f);
250 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.40f, 0.40f, 0.80f, 0.40f);
251 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
252 colors[ImGuiCol_CheckMark] = ImVec4(0.90f, 0.90f, 0.90f, 0.50f);
253 colors[ImGuiCol_SliderGrab] = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
254 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
255 colors[ImGuiCol_Button] = ImVec4(0.35f, 0.40f, 0.61f, 0.62f);
256 colors[ImGuiCol_ButtonHovered] = ImVec4(0.40f, 0.48f, 0.71f, 0.79f);
257 colors[ImGuiCol_ButtonActive] = ImVec4(0.46f, 0.54f, 0.80f, 1.00f);
258 colors[ImGuiCol_Header] = ImVec4(0.40f, 0.40f, 0.90f, 0.45f);
259 colors[ImGuiCol_HeaderHovered] = ImVec4(0.45f, 0.45f, 0.90f, 0.80f);
260 colors[ImGuiCol_HeaderActive] = ImVec4(0.53f, 0.53f, 0.87f, 0.80f);
261 colors[ImGuiCol_Separator] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
262 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.60f, 0.60f, 0.70f, 1.00f);
263 colors[ImGuiCol_SeparatorActive] = ImVec4(0.70f, 0.70f, 0.90f, 1.00f);
264 colors[ImGuiCol_ResizeGrip] = ImVec4(1.00f, 1.00f, 1.00f, 0.16f);
265 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.78f, 0.82f, 1.00f, 0.60f);
266 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.78f, 0.82f, 1.00f, 0.90f);
267 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
268 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
269 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
270 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
271 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
272 colors[ImGuiCol_PlotLines] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
273 colors[ImGuiCol_PlotLinesHovered] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
274 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
275 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
276 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.00f, 0.00f, 1.00f, 0.35f);
277 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
278 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
279 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
280 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
281 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
282 }
283
284 // Those light colors are better suited with a thicker font than the default one + FrameBorder
285 void ImGui::StyleColorsLight(ImGuiStyle* dst)
286 {
287 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
288 ImVec4* colors = style->Colors;
289
290 colors[ImGuiCol_Text] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
291 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
292 colors[ImGuiCol_WindowBg] = ImVec4(0.94f, 0.94f, 0.94f, 1.00f);
293 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
294 colors[ImGuiCol_PopupBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.98f);
295 colors[ImGuiCol_Border] = ImVec4(0.00f, 0.00f, 0.00f, 0.30f);
296 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
297 colors[ImGuiCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
298 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
299 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
300 colors[ImGuiCol_TitleBg] = ImVec4(0.96f, 0.96f, 0.96f, 1.00f);
301 colors[ImGuiCol_TitleBgActive] = ImVec4(0.82f, 0.82f, 0.82f, 1.00f);
302 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(1.00f, 1.00f, 1.00f, 0.51f);
303 colors[ImGuiCol_MenuBarBg] = ImVec4(0.86f, 0.86f, 0.86f, 1.00f);
304 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.98f, 0.98f, 0.98f, 0.53f);
305 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.69f, 0.69f, 0.69f, 0.80f);
306 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.49f, 0.49f, 0.49f, 0.80f);
307 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.49f, 0.49f, 0.49f, 1.00f);
308 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
309 colors[ImGuiCol_SliderGrab] = ImVec4(0.26f, 0.59f, 0.98f, 0.78f);
310 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.46f, 0.54f, 0.80f, 0.60f);
311 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
312 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
313 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
314 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
315 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
316 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
317 colors[ImGuiCol_Separator] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
318 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.14f, 0.44f, 0.80f, 0.78f);
319 colors[ImGuiCol_SeparatorActive] = ImVec4(0.14f, 0.44f, 0.80f, 1.00f);
320 colors[ImGuiCol_ResizeGrip] = ImVec4(0.80f, 0.80f, 0.80f, 0.56f);
321 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
322 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
323 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.90f);
324 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
325 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
326 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
327 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
328 colors[ImGuiCol_PlotLines] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
329 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
330 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
331 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.45f, 0.00f, 1.00f);
332 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
333 colors[ImGuiCol_DragDropTarget] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
334 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
335 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(0.70f, 0.70f, 0.70f, 0.70f);
336 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.20f);
337 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
338 }
339
340 //-----------------------------------------------------------------------------
341 // ImDrawList
342 //-----------------------------------------------------------------------------
343
344 ImDrawListSharedData::ImDrawListSharedData()
345 {
346 Font = NULL;
347 FontSize = 0.0f;
348 CurveTessellationTol = 0.0f;
349 ClipRectFullscreen = ImVec4(-8192.0f, -8192.0f, +8192.0f, +8192.0f);
350
351 // Const data
352 for (int i = 0; i < IM_ARRAYSIZE(CircleVtx12); i++)
353 {
354 const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(CircleVtx12);
355 CircleVtx12[i] = ImVec2(ImCos(a), ImSin(a));
356 }
357 }
358
359 void ImDrawList::Clear()
360 {
361 CmdBuffer.resize(0);
362 IdxBuffer.resize(0);
363 VtxBuffer.resize(0);
364 Flags = ImDrawListFlags_AntiAliasedLines | ImDrawListFlags_AntiAliasedFill;
365 _VtxCurrentIdx = 0;
366 _VtxWritePtr = NULL;
367 _IdxWritePtr = NULL;
368 _ClipRectStack.resize(0);
369 _TextureIdStack.resize(0);
370 _Path.resize(0);
371 _ChannelsCurrent = 0;
372 _ChannelsCount = 1;
373 // NB: Do not clear channels so our allocations are re-used after the first frame.
374 }
375
376 void ImDrawList::ClearFreeMemory()
377 {
378 CmdBuffer.clear();
379 IdxBuffer.clear();
380 VtxBuffer.clear();
381 _VtxCurrentIdx = 0;
382 _VtxWritePtr = NULL;
383 _IdxWritePtr = NULL;
384 _ClipRectStack.clear();
385 _TextureIdStack.clear();
386 _Path.clear();
387 _ChannelsCurrent = 0;
388 _ChannelsCount = 1;
389 for (int i = 0; i < _Channels.Size; i++)
390 {
391 if (i == 0) memset(&_Channels[0], 0, sizeof(_Channels[0])); // channel 0 is a copy of CmdBuffer/IdxBuffer, don't destruct again
392 _Channels[i].CmdBuffer.clear();
393 _Channels[i].IdxBuffer.clear();
394 }
395 _Channels.clear();
396 }
397
398 ImDrawList* ImDrawList::CloneOutput() const
399 {
400 ImDrawList* dst = IM_NEW(ImDrawList(NULL));
401 dst->CmdBuffer = CmdBuffer;
402 dst->IdxBuffer = IdxBuffer;
403 dst->VtxBuffer = VtxBuffer;
404 dst->Flags = Flags;
405 return dst;
406 }
407
408 // Using macros because C++ is a terrible language, we want guaranteed inline, no code in header, and no overhead in Debug builds
409 #define GetCurrentClipRect() (_ClipRectStack.Size ? _ClipRectStack.Data[_ClipRectStack.Size-1] : _Data->ClipRectFullscreen)
410 #define GetCurrentTextureId() (_TextureIdStack.Size ? _TextureIdStack.Data[_TextureIdStack.Size-1] : NULL)
411
412 void ImDrawList::AddDrawCmd()
413 {
414 ImDrawCmd draw_cmd;
415 draw_cmd.ClipRect = GetCurrentClipRect();
416 draw_cmd.TextureId = GetCurrentTextureId();
417
418 IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w);
419 CmdBuffer.push_back(draw_cmd);
420 }
421
422 void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data)
423 {
424 ImDrawCmd* current_cmd = CmdBuffer.Size ? &CmdBuffer.back() : NULL;
425 if (!current_cmd || current_cmd->ElemCount != 0 || current_cmd->UserCallback != NULL)
426 {
427 AddDrawCmd();
428 current_cmd = &CmdBuffer.back();
429 }
430 current_cmd->UserCallback = callback;
431 current_cmd->UserCallbackData = callback_data;
432
433 AddDrawCmd(); // Force a new command after us (see comment below)
434 }
435
436 // 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.
437 // 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.
438 void ImDrawList::UpdateClipRect()
439 {
440 // If current command is used with different settings we need to add a new command
441 const ImVec4 curr_clip_rect = GetCurrentClipRect();
442 ImDrawCmd* curr_cmd = CmdBuffer.Size > 0 ? &CmdBuffer.Data[CmdBuffer.Size-1] : NULL;
443 if (!curr_cmd || (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &curr_clip_rect, sizeof(ImVec4)) != 0) || curr_cmd->UserCallback != NULL)
444 {
445 AddDrawCmd();
446 return;
447 }
448
449 // Try to merge with previous command if it matches, else use current command
450 ImDrawCmd* prev_cmd = CmdBuffer.Size > 1 ? curr_cmd - 1 : NULL;
451 if (curr_cmd->ElemCount == 0 && prev_cmd && memcmp(&prev_cmd->ClipRect, &curr_clip_rect, sizeof(ImVec4)) == 0 && prev_cmd->TextureId == GetCurrentTextureId() && prev_cmd->UserCallback == NULL)
452 CmdBuffer.pop_back();
453 else
454 curr_cmd->ClipRect = curr_clip_rect;
455 }
456
457 void ImDrawList::UpdateTextureID()
458 {
459 // If current command is used with different settings we need to add a new command
460 const ImTextureID curr_texture_id = GetCurrentTextureId();
461 ImDrawCmd* curr_cmd = CmdBuffer.Size ? &CmdBuffer.back() : NULL;
462 if (!curr_cmd || (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != curr_texture_id) || curr_cmd->UserCallback != NULL)
463 {
464 AddDrawCmd();
465 return;
466 }
467
468 // Try to merge with previous command if it matches, else use current command
469 ImDrawCmd* prev_cmd = CmdBuffer.Size > 1 ? curr_cmd - 1 : NULL;
470 if (curr_cmd->ElemCount == 0 && prev_cmd && prev_cmd->TextureId == curr_texture_id && memcmp(&prev_cmd->ClipRect, &GetCurrentClipRect(), sizeof(ImVec4)) == 0 && prev_cmd->UserCallback == NULL)
471 CmdBuffer.pop_back();
472 else
473 curr_cmd->TextureId = curr_texture_id;
474 }
475
476 #undef GetCurrentClipRect
477 #undef GetCurrentTextureId
478
479 // 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)
480 void ImDrawList::PushClipRect(ImVec2 cr_min, ImVec2 cr_max, bool intersect_with_current_clip_rect)
481 {
482 ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y);
483 if (intersect_with_current_clip_rect && _ClipRectStack.Size)
484 {
485 ImVec4 current = _ClipRectStack.Data[_ClipRectStack.Size-1];
486 if (cr.x < current.x) cr.x = current.x;
487 if (cr.y < current.y) cr.y = current.y;
488 if (cr.z > current.z) cr.z = current.z;
489 if (cr.w > current.w) cr.w = current.w;
490 }
491 cr.z = ImMax(cr.x, cr.z);
492 cr.w = ImMax(cr.y, cr.w);
493
494 _ClipRectStack.push_back(cr);
495 UpdateClipRect();
496 }
497
498 void ImDrawList::PushClipRectFullScreen()
499 {
500 PushClipRect(ImVec2(_Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y), ImVec2(_Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w));
501 }
502
503 void ImDrawList::PopClipRect()
504 {
505 IM_ASSERT(_ClipRectStack.Size > 0);
506 _ClipRectStack.pop_back();
507 UpdateClipRect();
508 }
509
510 void ImDrawList::PushTextureID(ImTextureID texture_id)
511 {
512 _TextureIdStack.push_back(texture_id);
513 UpdateTextureID();
514 }
515
516 void ImDrawList::PopTextureID()
517 {
518 IM_ASSERT(_TextureIdStack.Size > 0);
519 _TextureIdStack.pop_back();
520 UpdateTextureID();
521 }
522
523 void ImDrawList::ChannelsSplit(int channels_count)
524 {
525 IM_ASSERT(_ChannelsCurrent == 0 && _ChannelsCount == 1);
526 int old_channels_count = _Channels.Size;
527 if (old_channels_count < channels_count)
528 _Channels.resize(channels_count);
529 _ChannelsCount = channels_count;
530
531 // _Channels[] (24/32 bytes each) hold storage that we'll swap with this->_CmdBuffer/_IdxBuffer
532 // 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.
533 // When we switch to the next channel, we'll copy _CmdBuffer/_IdxBuffer into _Channels[0] and then _Channels[1] into _CmdBuffer/_IdxBuffer
534 memset(&_Channels[0], 0, sizeof(ImDrawChannel));
535 for (int i = 1; i < channels_count; i++)
536 {
537 if (i >= old_channels_count)
538 {
539 IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel();
540 }
541 else
542 {
543 _Channels[i].CmdBuffer.resize(0);
544 _Channels[i].IdxBuffer.resize(0);
545 }
546 if (_Channels[i].CmdBuffer.Size == 0)
547 {
548 ImDrawCmd draw_cmd;
549 draw_cmd.ClipRect = _ClipRectStack.back();
550 draw_cmd.TextureId = _TextureIdStack.back();
551 _Channels[i].CmdBuffer.push_back(draw_cmd);
552 }
553 }
554 }
555
556 void ImDrawList::ChannelsMerge()
557 {
558 // 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.
559 if (_ChannelsCount <= 1)
560 return;
561
562 ChannelsSetCurrent(0);
563 if (CmdBuffer.Size && CmdBuffer.back().ElemCount == 0)
564 CmdBuffer.pop_back();
565
566 int new_cmd_buffer_count = 0, new_idx_buffer_count = 0;
567 for (int i = 1; i < _ChannelsCount; i++)
568 {
569 ImDrawChannel& ch = _Channels[i];
570 if (ch.CmdBuffer.Size && ch.CmdBuffer.back().ElemCount == 0)
571 ch.CmdBuffer.pop_back();
572 new_cmd_buffer_count += ch.CmdBuffer.Size;
573 new_idx_buffer_count += ch.IdxBuffer.Size;
574 }
575 CmdBuffer.resize(CmdBuffer.Size + new_cmd_buffer_count);
576 IdxBuffer.resize(IdxBuffer.Size + new_idx_buffer_count);
577
578 ImDrawCmd* cmd_write = CmdBuffer.Data + CmdBuffer.Size - new_cmd_buffer_count;
579 _IdxWritePtr = IdxBuffer.Data + IdxBuffer.Size - new_idx_buffer_count;
580 for (int i = 1; i < _ChannelsCount; i++)
581 {
582 ImDrawChannel& ch = _Channels[i];
583 if (int sz = ch.CmdBuffer.Size) { memcpy(cmd_write, ch.CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; }
584 if (int sz = ch.IdxBuffer.Size) { memcpy(_IdxWritePtr, ch.IdxBuffer.Data, sz * sizeof(ImDrawIdx)); _IdxWritePtr += sz; }
585 }
586 UpdateClipRect(); // We call this instead of AddDrawCmd(), so that empty channels won't produce an extra draw call.
587 _ChannelsCount = 1;
588 }
589
590 void ImDrawList::ChannelsSetCurrent(int idx)
591 {
592 IM_ASSERT(idx < _ChannelsCount);
593 if (_ChannelsCurrent == idx) return;
594 memcpy(&_Channels.Data[_ChannelsCurrent].CmdBuffer, &CmdBuffer, sizeof(CmdBuffer)); // copy 12 bytes, four times
595 memcpy(&_Channels.Data[_ChannelsCurrent].IdxBuffer, &IdxBuffer, sizeof(IdxBuffer));
596 _ChannelsCurrent = idx;
597 memcpy(&CmdBuffer, &_Channels.Data[_ChannelsCurrent].CmdBuffer, sizeof(CmdBuffer));
598 memcpy(&IdxBuffer, &_Channels.Data[_ChannelsCurrent].IdxBuffer, sizeof(IdxBuffer));
599 _IdxWritePtr = IdxBuffer.Data + IdxBuffer.Size;
600 }
601
602 // NB: this can be called with negative count for removing primitives (as long as the result does not underflow)
603 void ImDrawList::PrimReserve(int idx_count, int vtx_count)
604 {
605 ImDrawCmd& draw_cmd = CmdBuffer.Data[CmdBuffer.Size-1];
606 draw_cmd.ElemCount += idx_count;
607
608 int vtx_buffer_old_size = VtxBuffer.Size;
609 VtxBuffer.resize(vtx_buffer_old_size + vtx_count);
610 _VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size;
611
612 int idx_buffer_old_size = IdxBuffer.Size;
613 IdxBuffer.resize(idx_buffer_old_size + idx_count);
614 _IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size;
615 }
616
617 // Fully unrolled with inline call to keep our debug builds decently fast.
618 void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col)
619 {
620 ImVec2 b(c.x, a.y), d(a.x, c.y), uv(_Data->TexUvWhitePixel);
621 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
622 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
623 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
624 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
625 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
626 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
627 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
628 _VtxWritePtr += 4;
629 _VtxCurrentIdx += 4;
630 _IdxWritePtr += 6;
631 }
632
633 void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col)
634 {
635 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);
636 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
637 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
638 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
639 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
640 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
641 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
642 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
643 _VtxWritePtr += 4;
644 _VtxCurrentIdx += 4;
645 _IdxWritePtr += 6;
646 }
647
648 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)
649 {
650 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
651 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
652 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
653 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
654 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
655 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
656 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
657 _VtxWritePtr += 4;
658 _VtxCurrentIdx += 4;
659 _IdxWritePtr += 6;
660 }
661
662 // On AddPolyline() and AddConvexPolyFilled() we intentionally avoid using ImVec2 and superflous function calls to optimize debug/non-inlined builds.
663 // Those macros expects l-values.
664 #define IM_NORMALIZE2F_OVER_ZERO(VX,VY) { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = 1.0f / ImSqrt(d2); VX *= inv_len; VY *= inv_len; } }
665 #define IM_NORMALIZE2F_OVER_EPSILON_CLAMP(VX,VY,EPS,INVLENMAX) { float d2 = VX*VX + VY*VY; if (d2 > EPS) { float inv_len = 1.0f / ImSqrt(d2); if (inv_len > INVLENMAX) inv_len = INVLENMAX; VX *= inv_len; VY *= inv_len; } }
666
667 // TODO: Thickness anti-aliased lines cap are missing their AA fringe.
668 // We avoid using the ImVec2 math operators here to reduce cost to a minimum for debug/non-inlined builds.
669 void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, bool closed, float thickness)
670 {
671 if (points_count < 2)
672 return;
673
674 const ImVec2 uv = _Data->TexUvWhitePixel;
675
676 int count = points_count;
677 if (!closed)
678 count = points_count-1;
679
680 const bool thick_line = thickness > 1.0f;
681 if (Flags & ImDrawListFlags_AntiAliasedLines)
682 {
683 // Anti-aliased stroke
684 const float AA_SIZE = 1.0f;
685 const ImU32 col_trans = col & ~IM_COL32_A_MASK;
686
687 const int idx_count = thick_line ? count*18 : count*12;
688 const int vtx_count = thick_line ? points_count*4 : points_count*3;
689 PrimReserve(idx_count, vtx_count);
690
691 // Temporary buffer
692 ImVec2* temp_normals = (ImVec2*)alloca(points_count * (thick_line ? 5 : 3) * sizeof(ImVec2)); //-V630
693 ImVec2* temp_points = temp_normals + points_count;
694
695 for (int i1 = 0; i1 < count; i1++)
696 {
697 const int i2 = (i1+1) == points_count ? 0 : i1+1;
698 float dx = points[i2].x - points[i1].x;
699 float dy = points[i2].y - points[i1].y;
700 IM_NORMALIZE2F_OVER_ZERO(dx, dy);
701 temp_normals[i1].x = dy;
702 temp_normals[i1].y = -dx;
703 }
704 if (!closed)
705 temp_normals[points_count-1] = temp_normals[points_count-2];
706
707 if (!thick_line)
708 {
709 if (!closed)
710 {
711 temp_points[0] = points[0] + temp_normals[0] * AA_SIZE;
712 temp_points[1] = points[0] - temp_normals[0] * AA_SIZE;
713 temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * AA_SIZE;
714 temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * AA_SIZE;
715 }
716
717 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
718 unsigned int idx1 = _VtxCurrentIdx;
719 for (int i1 = 0; i1 < count; i1++)
720 {
721 const int i2 = (i1+1) == points_count ? 0 : i1+1;
722 unsigned int idx2 = (i1+1) == points_count ? _VtxCurrentIdx : idx1+3;
723
724 // Average normals
725 float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
726 float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
727 IM_NORMALIZE2F_OVER_EPSILON_CLAMP(dm_x, dm_y, 0.000001f, 100.0f)
728 dm_x *= AA_SIZE;
729 dm_y *= AA_SIZE;
730
731 // Add temporary vertexes
732 ImVec2* out_vtx = &temp_points[i2*2];
733 out_vtx[0].x = points[i2].x + dm_x;
734 out_vtx[0].y = points[i2].y + dm_y;
735 out_vtx[1].x = points[i2].x - dm_x;
736 out_vtx[1].y = points[i2].y - dm_y;
737
738 // Add indexes
739 _IdxWritePtr[0] = (ImDrawIdx)(idx2+0); _IdxWritePtr[1] = (ImDrawIdx)(idx1+0); _IdxWritePtr[2] = (ImDrawIdx)(idx1+2);
740 _IdxWritePtr[3] = (ImDrawIdx)(idx1+2); _IdxWritePtr[4] = (ImDrawIdx)(idx2+2); _IdxWritePtr[5] = (ImDrawIdx)(idx2+0);
741 _IdxWritePtr[6] = (ImDrawIdx)(idx2+1); _IdxWritePtr[7] = (ImDrawIdx)(idx1+1); _IdxWritePtr[8] = (ImDrawIdx)(idx1+0);
742 _IdxWritePtr[9] = (ImDrawIdx)(idx1+0); _IdxWritePtr[10]= (ImDrawIdx)(idx2+0); _IdxWritePtr[11]= (ImDrawIdx)(idx2+1);
743 _IdxWritePtr += 12;
744
745 idx1 = idx2;
746 }
747
748 // Add vertexes
749 for (int i = 0; i < points_count; i++)
750 {
751 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
752 _VtxWritePtr[1].pos = temp_points[i*2+0]; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans;
753 _VtxWritePtr[2].pos = temp_points[i*2+1]; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col_trans;
754 _VtxWritePtr += 3;
755 }
756 }
757 else
758 {
759 const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f;
760 if (!closed)
761 {
762 temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE);
763 temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness);
764 temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness);
765 temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE);
766 temp_points[(points_count-1)*4+0] = points[points_count-1] + temp_normals[points_count-1] * (half_inner_thickness + AA_SIZE);
767 temp_points[(points_count-1)*4+1] = points[points_count-1] + temp_normals[points_count-1] * (half_inner_thickness);
768 temp_points[(points_count-1)*4+2] = points[points_count-1] - temp_normals[points_count-1] * (half_inner_thickness);
769 temp_points[(points_count-1)*4+3] = points[points_count-1] - temp_normals[points_count-1] * (half_inner_thickness + AA_SIZE);
770 }
771
772 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
773 unsigned int idx1 = _VtxCurrentIdx;
774 for (int i1 = 0; i1 < count; i1++)
775 {
776 const int i2 = (i1+1) == points_count ? 0 : i1+1;
777 unsigned int idx2 = (i1+1) == points_count ? _VtxCurrentIdx : idx1+4;
778
779 // Average normals
780 float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
781 float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
782 IM_NORMALIZE2F_OVER_EPSILON_CLAMP(dm_x, dm_y, 0.000001f, 100.0f);
783 float dm_out_x = dm_x * (half_inner_thickness + AA_SIZE);
784 float dm_out_y = dm_y * (half_inner_thickness + AA_SIZE);
785 float dm_in_x = dm_x * half_inner_thickness;
786 float dm_in_y = dm_y * half_inner_thickness;
787
788 // Add temporary vertexes
789 ImVec2* out_vtx = &temp_points[i2*4];
790 out_vtx[0].x = points[i2].x + dm_out_x;
791 out_vtx[0].y = points[i2].y + dm_out_y;
792 out_vtx[1].x = points[i2].x + dm_in_x;
793 out_vtx[1].y = points[i2].y + dm_in_y;
794 out_vtx[2].x = points[i2].x - dm_in_x;
795 out_vtx[2].y = points[i2].y - dm_in_y;
796 out_vtx[3].x = points[i2].x - dm_out_x;
797 out_vtx[3].y = points[i2].y - dm_out_y;
798
799 // Add indexes
800 _IdxWritePtr[0] = (ImDrawIdx)(idx2+1); _IdxWritePtr[1] = (ImDrawIdx)(idx1+1); _IdxWritePtr[2] = (ImDrawIdx)(idx1+2);
801 _IdxWritePtr[3] = (ImDrawIdx)(idx1+2); _IdxWritePtr[4] = (ImDrawIdx)(idx2+2); _IdxWritePtr[5] = (ImDrawIdx)(idx2+1);
802 _IdxWritePtr[6] = (ImDrawIdx)(idx2+1); _IdxWritePtr[7] = (ImDrawIdx)(idx1+1); _IdxWritePtr[8] = (ImDrawIdx)(idx1+0);
803 _IdxWritePtr[9] = (ImDrawIdx)(idx1+0); _IdxWritePtr[10] = (ImDrawIdx)(idx2+0); _IdxWritePtr[11] = (ImDrawIdx)(idx2+1);
804 _IdxWritePtr[12] = (ImDrawIdx)(idx2+2); _IdxWritePtr[13] = (ImDrawIdx)(idx1+2); _IdxWritePtr[14] = (ImDrawIdx)(idx1+3);
805 _IdxWritePtr[15] = (ImDrawIdx)(idx1+3); _IdxWritePtr[16] = (ImDrawIdx)(idx2+3); _IdxWritePtr[17] = (ImDrawIdx)(idx2+2);
806 _IdxWritePtr += 18;
807
808 idx1 = idx2;
809 }
810
811 // Add vertexes
812 for (int i = 0; i < points_count; i++)
813 {
814 _VtxWritePtr[0].pos = temp_points[i*4+0]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col_trans;
815 _VtxWritePtr[1].pos = temp_points[i*4+1]; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
816 _VtxWritePtr[2].pos = temp_points[i*4+2]; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
817 _VtxWritePtr[3].pos = temp_points[i*4+3]; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col_trans;
818 _VtxWritePtr += 4;
819 }
820 }
821 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
822 }
823 else
824 {
825 // Non Anti-aliased Stroke
826 const int idx_count = count*6;
827 const int vtx_count = count*4; // FIXME-OPT: Not sharing edges
828 PrimReserve(idx_count, vtx_count);
829
830 for (int i1 = 0; i1 < count; i1++)
831 {
832 const int i2 = (i1+1) == points_count ? 0 : i1+1;
833 const ImVec2& p1 = points[i1];
834 const ImVec2& p2 = points[i2];
835
836 float dx = p2.x - p1.x;
837 float dy = p2.y - p1.y;
838 IM_NORMALIZE2F_OVER_ZERO(dx, dy);
839 dx *= (thickness * 0.5f);
840 dy *= (thickness * 0.5f);
841
842 _VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
843 _VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
844 _VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
845 _VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
846 _VtxWritePtr += 4;
847
848 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx+1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx+2);
849 _IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx+2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx+3);
850 _IdxWritePtr += 6;
851 _VtxCurrentIdx += 4;
852 }
853 }
854 }
855
856 // We intentionally avoid using ImVec2 and its math operators here to reduce cost to a minimum for debug/non-inlined builds.
857 void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col)
858 {
859 if (points_count < 3)
860 return;
861
862 const ImVec2 uv = _Data->TexUvWhitePixel;
863
864 if (Flags & ImDrawListFlags_AntiAliasedFill)
865 {
866 // Anti-aliased Fill
867 const float AA_SIZE = 1.0f;
868 const ImU32 col_trans = col & ~IM_COL32_A_MASK;
869 const int idx_count = (points_count-2)*3 + points_count*6;
870 const int vtx_count = (points_count*2);
871 PrimReserve(idx_count, vtx_count);
872
873 // Add indexes for fill
874 unsigned int vtx_inner_idx = _VtxCurrentIdx;
875 unsigned int vtx_outer_idx = _VtxCurrentIdx+1;
876 for (int i = 2; i < points_count; i++)
877 {
878 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx+((i-1)<<1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx+(i<<1));
879 _IdxWritePtr += 3;
880 }
881
882 // Compute normals
883 ImVec2* temp_normals = (ImVec2*)alloca(points_count * sizeof(ImVec2)); //-V630
884 for (int i0 = points_count-1, i1 = 0; i1 < points_count; i0 = i1++)
885 {
886 const ImVec2& p0 = points[i0];
887 const ImVec2& p1 = points[i1];
888 float dx = p1.x - p0.x;
889 float dy = p1.y - p0.y;
890 IM_NORMALIZE2F_OVER_ZERO(dx, dy);
891 temp_normals[i0].x = dy;
892 temp_normals[i0].y = -dx;
893 }
894
895 for (int i0 = points_count-1, i1 = 0; i1 < points_count; i0 = i1++)
896 {
897 // Average normals
898 const ImVec2& n0 = temp_normals[i0];
899 const ImVec2& n1 = temp_normals[i1];
900 float dm_x = (n0.x + n1.x) * 0.5f;
901 float dm_y = (n0.y + n1.y) * 0.5f;
902 IM_NORMALIZE2F_OVER_EPSILON_CLAMP(dm_x, dm_y, 0.000001f, 100.0f);
903 dm_x *= AA_SIZE * 0.5f;
904 dm_y *= AA_SIZE * 0.5f;
905
906 // Add vertices
907 _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
908 _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
909 _VtxWritePtr += 2;
910
911 // Add indexes for fringes
912 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx+(i1<<1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx+(i0<<1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx+(i0<<1));
913 _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx+(i0<<1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx+(i1<<1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx+(i1<<1));
914 _IdxWritePtr += 6;
915 }
916 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
917 }
918 else
919 {
920 // Non Anti-aliased Fill
921 const int idx_count = (points_count-2)*3;
922 const int vtx_count = points_count;
923 PrimReserve(idx_count, vtx_count);
924 for (int i = 0; i < vtx_count; i++)
925 {
926 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
927 _VtxWritePtr++;
928 }
929 for (int i = 2; i < points_count; i++)
930 {
931 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx+i-1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx+i);
932 _IdxWritePtr += 3;
933 }
934 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
935 }
936 }
937
938 void ImDrawList::PathArcToFast(const ImVec2& centre, float radius, int a_min_of_12, int a_max_of_12)
939 {
940 if (radius == 0.0f || a_min_of_12 > a_max_of_12)
941 {
942 _Path.push_back(centre);
943 return;
944 }
945 _Path.reserve(_Path.Size + (a_max_of_12 - a_min_of_12 + 1));
946 for (int a = a_min_of_12; a <= a_max_of_12; a++)
947 {
948 const ImVec2& c = _Data->CircleVtx12[a % IM_ARRAYSIZE(_Data->CircleVtx12)];
949 _Path.push_back(ImVec2(centre.x + c.x * radius, centre.y + c.y * radius));
950 }
951 }
952
953 void ImDrawList::PathArcTo(const ImVec2& centre, float radius, float a_min, float a_max, int num_segments)
954 {
955 if (radius == 0.0f)
956 {
957 _Path.push_back(centre);
958 return;
959 }
960
961 // Note that we are adding a point at both a_min and a_max.
962 // If you are trying to draw a full closed circle you don't want the overlapping points!
963 _Path.reserve(_Path.Size + (num_segments + 1));
964 for (int i = 0; i <= num_segments; i++)
965 {
966 const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
967 _Path.push_back(ImVec2(centre.x + ImCos(a) * radius, centre.y + ImSin(a) * radius));
968 }
969 }
970
971 static void PathBezierToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4, float tess_tol, int level)
972 {
973 float dx = x4 - x1;
974 float dy = y4 - y1;
975 float d2 = ((x2 - x4) * dy - (y2 - y4) * dx);
976 float d3 = ((x3 - x4) * dy - (y3 - y4) * dx);
977 d2 = (d2 >= 0) ? d2 : -d2;
978 d3 = (d3 >= 0) ? d3 : -d3;
979 if ((d2+d3) * (d2+d3) < tess_tol * (dx*dx + dy*dy))
980 {
981 path->push_back(ImVec2(x4, y4));
982 }
983 else if (level < 10)
984 {
985 float x12 = (x1+x2)*0.5f, y12 = (y1+y2)*0.5f;
986 float x23 = (x2+x3)*0.5f, y23 = (y2+y3)*0.5f;
987 float x34 = (x3+x4)*0.5f, y34 = (y3+y4)*0.5f;
988 float x123 = (x12+x23)*0.5f, y123 = (y12+y23)*0.5f;
989 float x234 = (x23+x34)*0.5f, y234 = (y23+y34)*0.5f;
990 float x1234 = (x123+x234)*0.5f, y1234 = (y123+y234)*0.5f;
991
992 PathBezierToCasteljau(path, x1,y1, x12,y12, x123,y123, x1234,y1234, tess_tol, level+1);
993 PathBezierToCasteljau(path, x1234,y1234, x234,y234, x34,y34, x4,y4, tess_tol, level+1);
994 }
995 }
996
997 void ImDrawList::PathBezierCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments)
998 {
999 ImVec2 p1 = _Path.back();
1000 if (num_segments == 0)
1001 {
1002 // Auto-tessellated
1003 PathBezierToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, _Data->CurveTessellationTol, 0);
1004 }
1005 else
1006 {
1007 float t_step = 1.0f / (float)num_segments;
1008 for (int i_step = 1; i_step <= num_segments; i_step++)
1009 {
1010 float t = t_step * i_step;
1011 float u = 1.0f - t;
1012 float w1 = u*u*u;
1013 float w2 = 3*u*u*t;
1014 float w3 = 3*u*t*t;
1015 float w4 = t*t*t;
1016 _Path.push_back(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));
1017 }
1018 }
1019 }
1020
1021 void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, int rounding_corners)
1022 {
1023 rounding = ImMin(rounding, ImFabs(b.x - a.x) * ( ((rounding_corners & ImDrawCornerFlags_Top) == ImDrawCornerFlags_Top) || ((rounding_corners & ImDrawCornerFlags_Bot) == ImDrawCornerFlags_Bot) ? 0.5f : 1.0f ) - 1.0f);
1024 rounding = ImMin(rounding, ImFabs(b.y - a.y) * ( ((rounding_corners & ImDrawCornerFlags_Left) == ImDrawCornerFlags_Left) || ((rounding_corners & ImDrawCornerFlags_Right) == ImDrawCornerFlags_Right) ? 0.5f : 1.0f ) - 1.0f);
1025
1026 if (rounding <= 0.0f || rounding_corners == 0)
1027 {
1028 PathLineTo(a);
1029 PathLineTo(ImVec2(b.x, a.y));
1030 PathLineTo(b);
1031 PathLineTo(ImVec2(a.x, b.y));
1032 }
1033 else
1034 {
1035 const float rounding_tl = (rounding_corners & ImDrawCornerFlags_TopLeft) ? rounding : 0.0f;
1036 const float rounding_tr = (rounding_corners & ImDrawCornerFlags_TopRight) ? rounding : 0.0f;
1037 const float rounding_br = (rounding_corners & ImDrawCornerFlags_BotRight) ? rounding : 0.0f;
1038 const float rounding_bl = (rounding_corners & ImDrawCornerFlags_BotLeft) ? rounding : 0.0f;
1039 PathArcToFast(ImVec2(a.x + rounding_tl, a.y + rounding_tl), rounding_tl, 6, 9);
1040 PathArcToFast(ImVec2(b.x - rounding_tr, a.y + rounding_tr), rounding_tr, 9, 12);
1041 PathArcToFast(ImVec2(b.x - rounding_br, b.y - rounding_br), rounding_br, 0, 3);
1042 PathArcToFast(ImVec2(a.x + rounding_bl, b.y - rounding_bl), rounding_bl, 3, 6);
1043 }
1044 }
1045
1046 void ImDrawList::AddLine(const ImVec2& a, const ImVec2& b, ImU32 col, float thickness)
1047 {
1048 if ((col & IM_COL32_A_MASK) == 0)
1049 return;
1050 PathLineTo(a + ImVec2(0.5f,0.5f));
1051 PathLineTo(b + ImVec2(0.5f,0.5f));
1052 PathStroke(col, false, thickness);
1053 }
1054
1055 // a: upper-left, b: lower-right. we don't render 1 px sized rectangles properly.
1056 void ImDrawList::AddRect(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding, int rounding_corners_flags, float thickness)
1057 {
1058 if ((col & IM_COL32_A_MASK) == 0)
1059 return;
1060 if (Flags & ImDrawListFlags_AntiAliasedLines)
1061 PathRect(a + ImVec2(0.5f,0.5f), b - ImVec2(0.50f,0.50f), rounding, rounding_corners_flags);
1062 else
1063 PathRect(a + ImVec2(0.5f,0.5f), b - ImVec2(0.49f,0.49f), rounding, rounding_corners_flags); // Better looking lower-right corner and rounded non-AA shapes.
1064 PathStroke(col, true, thickness);
1065 }
1066
1067 void ImDrawList::AddRectFilled(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding, int rounding_corners_flags)
1068 {
1069 if ((col & IM_COL32_A_MASK) == 0)
1070 return;
1071 if (rounding > 0.0f)
1072 {
1073 PathRect(a, b, rounding, rounding_corners_flags);
1074 PathFillConvex(col);
1075 }
1076 else
1077 {
1078 PrimReserve(6, 4);
1079 PrimRect(a, b, col);
1080 }
1081 }
1082
1083 void ImDrawList::AddRectFilledMultiColor(const ImVec2& a, const ImVec2& c, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left)
1084 {
1085 if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0)
1086 return;
1087
1088 const ImVec2 uv = _Data->TexUvWhitePixel;
1089 PrimReserve(6, 4);
1090 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+2));
1091 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+3));
1092 PrimWriteVtx(a, uv, col_upr_left);
1093 PrimWriteVtx(ImVec2(c.x, a.y), uv, col_upr_right);
1094 PrimWriteVtx(c, uv, col_bot_right);
1095 PrimWriteVtx(ImVec2(a.x, c.y), uv, col_bot_left);
1096 }
1097
1098 void ImDrawList::AddQuad(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, ImU32 col, float thickness)
1099 {
1100 if ((col & IM_COL32_A_MASK) == 0)
1101 return;
1102
1103 PathLineTo(a);
1104 PathLineTo(b);
1105 PathLineTo(c);
1106 PathLineTo(d);
1107 PathStroke(col, true, thickness);
1108 }
1109
1110 void ImDrawList::AddQuadFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, ImU32 col)
1111 {
1112 if ((col & IM_COL32_A_MASK) == 0)
1113 return;
1114
1115 PathLineTo(a);
1116 PathLineTo(b);
1117 PathLineTo(c);
1118 PathLineTo(d);
1119 PathFillConvex(col);
1120 }
1121
1122 void ImDrawList::AddTriangle(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col, float thickness)
1123 {
1124 if ((col & IM_COL32_A_MASK) == 0)
1125 return;
1126
1127 PathLineTo(a);
1128 PathLineTo(b);
1129 PathLineTo(c);
1130 PathStroke(col, true, thickness);
1131 }
1132
1133 void ImDrawList::AddTriangleFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col)
1134 {
1135 if ((col & IM_COL32_A_MASK) == 0)
1136 return;
1137
1138 PathLineTo(a);
1139 PathLineTo(b);
1140 PathLineTo(c);
1141 PathFillConvex(col);
1142 }
1143
1144 void ImDrawList::AddCircle(const ImVec2& centre, float radius, ImU32 col, int num_segments, float thickness)
1145 {
1146 if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
1147 return;
1148
1149 // Because we are filling a closed shape we remove 1 from the count of segments/points
1150 const float a_max = IM_PI*2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
1151 PathArcTo(centre, radius-0.5f, 0.0f, a_max, num_segments - 1);
1152 PathStroke(col, true, thickness);
1153 }
1154
1155 void ImDrawList::AddCircleFilled(const ImVec2& centre, float radius, ImU32 col, int num_segments)
1156 {
1157 if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
1158 return;
1159
1160 // Because we are filling a closed shape we remove 1 from the count of segments/points
1161 const float a_max = IM_PI*2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
1162 PathArcTo(centre, radius, 0.0f, a_max, num_segments - 1);
1163 PathFillConvex(col);
1164 }
1165
1166 void ImDrawList::AddBezierCurve(const ImVec2& pos0, const ImVec2& cp0, const ImVec2& cp1, const ImVec2& pos1, ImU32 col, float thickness, int num_segments)
1167 {
1168 if ((col & IM_COL32_A_MASK) == 0)
1169 return;
1170
1171 PathLineTo(pos0);
1172 PathBezierCurveTo(cp0, cp1, pos1, num_segments);
1173 PathStroke(col, false, thickness);
1174 }
1175
1176 void ImDrawList::AddText(const 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)
1177 {
1178 if ((col & IM_COL32_A_MASK) == 0)
1179 return;
1180
1181 if (text_end == NULL)
1182 text_end = text_begin + strlen(text_begin);
1183 if (text_begin == text_end)
1184 return;
1185
1186 // Pull default font/size from the shared ImDrawListSharedData instance
1187 if (font == NULL)
1188 font = _Data->Font;
1189 if (font_size == 0.0f)
1190 font_size = _Data->FontSize;
1191
1192 IM_ASSERT(font->ContainerAtlas->TexID == _TextureIdStack.back()); // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font.
1193
1194 ImVec4 clip_rect = _ClipRectStack.back();
1195 if (cpu_fine_clip_rect)
1196 {
1197 clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x);
1198 clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y);
1199 clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z);
1200 clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w);
1201 }
1202 font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL);
1203 }
1204
1205 void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end)
1206 {
1207 AddText(NULL, 0.0f, pos, col, text_begin, text_end);
1208 }
1209
1210 void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, ImU32 col)
1211 {
1212 if ((col & IM_COL32_A_MASK) == 0)
1213 return;
1214
1215 const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
1216 if (push_texture_id)
1217 PushTextureID(user_texture_id);
1218
1219 PrimReserve(6, 4);
1220 PrimRectUV(a, b, uv_a, uv_b, col);
1221
1222 if (push_texture_id)
1223 PopTextureID();
1224 }
1225
1226 void ImDrawList::AddImageQuad(ImTextureID user_texture_id, 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)
1227 {
1228 if ((col & IM_COL32_A_MASK) == 0)
1229 return;
1230
1231 const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
1232 if (push_texture_id)
1233 PushTextureID(user_texture_id);
1234
1235 PrimReserve(6, 4);
1236 PrimQuadUV(a, b, c, d, uv_a, uv_b, uv_c, uv_d, col);
1237
1238 if (push_texture_id)
1239 PopTextureID();
1240 }
1241
1242 void ImDrawList::AddImageRounded(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, ImU32 col, float rounding, int rounding_corners)
1243 {
1244 if ((col & IM_COL32_A_MASK) == 0)
1245 return;
1246
1247 if (rounding <= 0.0f || (rounding_corners & ImDrawCornerFlags_All) == 0)
1248 {
1249 AddImage(user_texture_id, a, b, uv_a, uv_b, col);
1250 return;
1251 }
1252
1253 const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
1254 if (push_texture_id)
1255 PushTextureID(user_texture_id);
1256
1257 int vert_start_idx = VtxBuffer.Size;
1258 PathRect(a, b, rounding, rounding_corners);
1259 PathFillConvex(col);
1260 int vert_end_idx = VtxBuffer.Size;
1261 ImGui::ShadeVertsLinearUV(this, vert_start_idx, vert_end_idx, a, b, uv_a, uv_b, true);
1262
1263 if (push_texture_id)
1264 PopTextureID();
1265 }
1266
1267 //-----------------------------------------------------------------------------
1268 // [SECTION] ImDrawData
1269 //-----------------------------------------------------------------------------
1270
1271 // 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!
1272 void ImDrawData::DeIndexAllBuffers()
1273 {
1274 ImVector<ImDrawVert> new_vtx_buffer;
1275 TotalVtxCount = TotalIdxCount = 0;
1276 for (int i = 0; i < CmdListsCount; i++)
1277 {
1278 ImDrawList* cmd_list = CmdLists[i];
1279 if (cmd_list->IdxBuffer.empty())
1280 continue;
1281 new_vtx_buffer.resize(cmd_list->IdxBuffer.Size);
1282 for (int j = 0; j < cmd_list->IdxBuffer.Size; j++)
1283 new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]];
1284 cmd_list->VtxBuffer.swap(new_vtx_buffer);
1285 cmd_list->IdxBuffer.resize(0);
1286 TotalVtxCount += cmd_list->VtxBuffer.Size;
1287 }
1288 }
1289
1290 // Helper to scale the ClipRect field of each ImDrawCmd.
1291 // Use if your final output buffer is at a different scale than draw_data->DisplaySize,
1292 // or if there is a difference between your window resolution and framebuffer resolution.
1293 void ImDrawData::ScaleClipRects(const ImVec2& fb_scale)
1294 {
1295 for (int i = 0; i < CmdListsCount; i++)
1296 {
1297 ImDrawList* cmd_list = CmdLists[i];
1298 for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
1299 {
1300 ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i];
1301 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);
1302 }
1303 }
1304 }
1305
1306 //-----------------------------------------------------------------------------
1307 // [SECTION] Helpers ShadeVertsXXX functions
1308 //-----------------------------------------------------------------------------
1309
1310 // Generic linear color gradient, write to RGB fields, leave A untouched.
1311 void ImGui::ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1)
1312 {
1313 ImVec2 gradient_extent = gradient_p1 - gradient_p0;
1314 float gradient_inv_length2 = 1.0f / ImLengthSqr(gradient_extent);
1315 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
1316 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
1317 for (ImDrawVert* vert = vert_start; vert < vert_end; vert++)
1318 {
1319 float d = ImDot(vert->pos - gradient_p0, gradient_extent);
1320 float t = ImClamp(d * gradient_inv_length2, 0.0f, 1.0f);
1321 int r = ImLerp((int)(col0 >> IM_COL32_R_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_R_SHIFT) & 0xFF, t);
1322 int g = ImLerp((int)(col0 >> IM_COL32_G_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_G_SHIFT) & 0xFF, t);
1323 int b = ImLerp((int)(col0 >> IM_COL32_B_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_B_SHIFT) & 0xFF, t);
1324 vert->col = (r << IM_COL32_R_SHIFT) | (g << IM_COL32_G_SHIFT) | (b << IM_COL32_B_SHIFT) | (vert->col & IM_COL32_A_MASK);
1325 }
1326 }
1327
1328 // Distribute UV over (a, b) rectangle
1329 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)
1330 {
1331 const ImVec2 size = b - a;
1332 const ImVec2 uv_size = uv_b - uv_a;
1333 const ImVec2 scale = ImVec2(
1334 size.x != 0.0f ? (uv_size.x / size.x) : 0.0f,
1335 size.y != 0.0f ? (uv_size.y / size.y) : 0.0f);
1336
1337 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
1338 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
1339 if (clamp)
1340 {
1341 const ImVec2 min = ImMin(uv_a, uv_b);
1342 const ImVec2 max = ImMax(uv_a, uv_b);
1343 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
1344 vertex->uv = ImClamp(uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale), min, max);
1345 }
1346 else
1347 {
1348 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
1349 vertex->uv = uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale);
1350 }
1351 }
1352
1353 //-----------------------------------------------------------------------------
1354 // [SECTION] ImFontConfig
1355 //-----------------------------------------------------------------------------
1356
1357 ImFontConfig::ImFontConfig()
1358 {
1359 FontData = NULL;
1360 FontDataSize = 0;
1361 FontDataOwnedByAtlas = true;
1362 FontNo = 0;
1363 SizePixels = 0.0f;
1364 OversampleH = 3; // FIXME: 2 may be a better default?
1365 OversampleV = 1;
1366 PixelSnapH = false;
1367 GlyphExtraSpacing = ImVec2(0.0f, 0.0f);
1368 GlyphOffset = ImVec2(0.0f, 0.0f);
1369 GlyphRanges = NULL;
1370 GlyphMinAdvanceX = 0.0f;
1371 GlyphMaxAdvanceX = FLT_MAX;
1372 MergeMode = false;
1373 RasterizerFlags = 0x00;
1374 RasterizerMultiply = 1.0f;
1375 memset(Name, 0, sizeof(Name));
1376 DstFont = NULL;
1377 }
1378
1379 //-----------------------------------------------------------------------------
1380 // [SECTION] ImFontAtlas
1381 //-----------------------------------------------------------------------------
1382
1383 // A work of art lies ahead! (. = white layer, X = black layer, others are blank)
1384 // The white texels on the top left are the ones we'll use everywhere in ImGui to render filled shapes.
1385 const int FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF = 108;
1386 const int FONT_ATLAS_DEFAULT_TEX_DATA_H = 27;
1387 const unsigned int FONT_ATLAS_DEFAULT_TEX_DATA_ID = 0x80000000;
1388 static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] =
1389 {
1390 "..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX- XX "
1391 "..- -X.....X- X.X - X.X -X.....X - X.....X- X..X "
1392 "--- -XXX.XXX- X...X - X...X -X....X - X....X- X..X "
1393 "X - X.X - X.....X - X.....X -X...X - X...X- X..X "
1394 "XX - X.X -X.......X- X.......X -X..X.X - X.X..X- X..X "
1395 "X.X - X.X -XXXX.XXXX- XXXX.XXXX -X.X X.X - X.X X.X- X..XXX "
1396 "X..X - X.X - X.X - X.X -XX X.X - X.X XX- X..X..XXX "
1397 "X...X - X.X - X.X - XX X.X XX - X.X - X.X - X..X..X..XX "
1398 "X....X - X.X - X.X - X.X X.X X.X - X.X - X.X - X..X..X..X.X "
1399 "X.....X - X.X - X.X - X..X X.X X..X - X.X - X.X -XXX X..X..X..X..X"
1400 "X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-XX X.X -X..XX........X..X"
1401 "X.......X - X.X - X.X -X.....................X- X.X X.X-X.X X.X -X...X...........X"
1402 "X........X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X..X-X..X.X - X..............X"
1403 "X.........X -XXX.XXX- X.X - X..X X.X X..X - X...X-X...X - X.............X"
1404 "X..........X-X.....X- X.X - X.X X.X X.X - X....X-X....X - X.............X"
1405 "X......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X - X............X"
1406 "X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX - X...........X "
1407 "X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------- X..........X "
1408 "X.X X..X - -X.......X- X.......X - XX XX - - X..........X "
1409 "XX X..X - - X.....X - X.....X - X.X X.X - - X........X "
1410 " X..X - X...X - X...X - X..X X..X - - X........X "
1411 " XX - X.X - X.X - X...XXXXXXXXXXXXX...X - - XXXXXXXXXX "
1412 "------------ - X - X -X.....................X- ------------------"
1413 " ----------------------------------- X...XXXXXXXXXXXXX...X - "
1414 " - X..X X..X - "
1415 " - X.X X.X - "
1416 " - XX XX - "
1417 };
1418
1419 static const ImVec2 FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[ImGuiMouseCursor_COUNT][3] =
1420 {
1421 // Pos ........ Size ......... Offset ......
1422 { ImVec2( 0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow
1423 { ImVec2(13,0), ImVec2( 7,16), ImVec2( 1, 8) }, // ImGuiMouseCursor_TextInput
1424 { ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_ResizeAll
1425 { ImVec2(21,0), ImVec2( 9,23), ImVec2( 4,11) }, // ImGuiMouseCursor_ResizeNS
1426 { ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 4) }, // ImGuiMouseCursor_ResizeEW
1427 { ImVec2(73,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNESW
1428 { ImVec2(55,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNWSE
1429 { ImVec2(91,0), ImVec2(17,22), ImVec2( 5, 0) }, // ImGuiMouseCursor_Hand
1430 };
1431
1432 ImFontAtlas::ImFontAtlas()
1433 {
1434 Locked = false;
1435 Flags = ImFontAtlasFlags_None;
1436 TexID = (ImTextureID)NULL;
1437 TexDesiredWidth = 0;
1438 TexGlyphPadding = 1;
1439
1440 TexPixelsAlpha8 = NULL;
1441 TexPixelsRGBA32 = NULL;
1442 TexWidth = TexHeight = 0;
1443 TexUvScale = ImVec2(0.0f, 0.0f);
1444 TexUvWhitePixel = ImVec2(0.0f, 0.0f);
1445 for (int n = 0; n < IM_ARRAYSIZE(CustomRectIds); n++)
1446 CustomRectIds[n] = -1;
1447 }
1448
1449 ImFontAtlas::~ImFontAtlas()
1450 {
1451 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1452 Clear();
1453 }
1454
1455 void ImFontAtlas::ClearInputData()
1456 {
1457 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1458 for (int i = 0; i < ConfigData.Size; i++)
1459 if (ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas)
1460 {
1461 ImGui::MemFree(ConfigData[i].FontData);
1462 ConfigData[i].FontData = NULL;
1463 }
1464
1465 // When clearing this we lose access to the font name and other information used to build the font.
1466 for (int i = 0; i < Fonts.Size; i++)
1467 if (Fonts[i]->ConfigData >= ConfigData.Data && Fonts[i]->ConfigData < ConfigData.Data + ConfigData.Size)
1468 {
1469 Fonts[i]->ConfigData = NULL;
1470 Fonts[i]->ConfigDataCount = 0;
1471 }
1472 ConfigData.clear();
1473 CustomRects.clear();
1474 for (int n = 0; n < IM_ARRAYSIZE(CustomRectIds); n++)
1475 CustomRectIds[n] = -1;
1476 }
1477
1478 void ImFontAtlas::ClearTexData()
1479 {
1480 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1481 if (TexPixelsAlpha8)
1482 ImGui::MemFree(TexPixelsAlpha8);
1483 if (TexPixelsRGBA32)
1484 ImGui::MemFree(TexPixelsRGBA32);
1485 TexPixelsAlpha8 = NULL;
1486 TexPixelsRGBA32 = NULL;
1487 }
1488
1489 void ImFontAtlas::ClearFonts()
1490 {
1491 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1492 for (int i = 0; i < Fonts.Size; i++)
1493 IM_DELETE(Fonts[i]);
1494 Fonts.clear();
1495 }
1496
1497 void ImFontAtlas::Clear()
1498 {
1499 ClearInputData();
1500 ClearTexData();
1501 ClearFonts();
1502 }
1503
1504 void ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
1505 {
1506 // Build atlas on demand
1507 if (TexPixelsAlpha8 == NULL)
1508 {
1509 if (ConfigData.empty())
1510 AddFontDefault();
1511 Build();
1512 }
1513
1514 *out_pixels = TexPixelsAlpha8;
1515 if (out_width) *out_width = TexWidth;
1516 if (out_height) *out_height = TexHeight;
1517 if (out_bytes_per_pixel) *out_bytes_per_pixel = 1;
1518 }
1519
1520 void ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
1521 {
1522 // Convert to RGBA32 format on demand
1523 // Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp
1524 if (!TexPixelsRGBA32)
1525 {
1526 unsigned char* pixels = NULL;
1527 GetTexDataAsAlpha8(&pixels, NULL, NULL);
1528 if (pixels)
1529 {
1530 TexPixelsRGBA32 = (unsigned int*)ImGui::MemAlloc((size_t)TexWidth * (size_t)TexHeight * 4);
1531 const unsigned char* src = pixels;
1532 unsigned int* dst = TexPixelsRGBA32;
1533 for (int n = TexWidth * TexHeight; n > 0; n--)
1534 *dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++));
1535 }
1536 }
1537
1538 *out_pixels = (unsigned char*)TexPixelsRGBA32;
1539 if (out_width) *out_width = TexWidth;
1540 if (out_height) *out_height = TexHeight;
1541 if (out_bytes_per_pixel) *out_bytes_per_pixel = 4;
1542 }
1543
1544 ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg)
1545 {
1546 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1547 IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0);
1548 IM_ASSERT(font_cfg->SizePixels > 0.0f);
1549
1550 // Create new font
1551 if (!font_cfg->MergeMode)
1552 Fonts.push_back(IM_NEW(ImFont));
1553 else
1554 IM_ASSERT(!Fonts.empty() && "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.
1555
1556 ConfigData.push_back(*font_cfg);
1557 ImFontConfig& new_font_cfg = ConfigData.back();
1558 if (new_font_cfg.DstFont == NULL)
1559 new_font_cfg.DstFont = Fonts.back();
1560 if (!new_font_cfg.FontDataOwnedByAtlas)
1561 {
1562 new_font_cfg.FontData = ImGui::MemAlloc(new_font_cfg.FontDataSize);
1563 new_font_cfg.FontDataOwnedByAtlas = true;
1564 memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize);
1565 }
1566
1567 // Invalidate texture
1568 ClearTexData();
1569 return new_font_cfg.DstFont;
1570 }
1571
1572 // Default font TTF is compressed with stb_compress then base85 encoded (see misc/fonts/binary_to_compressed_c.cpp for encoder)
1573 static unsigned int stb_decompress_length(const unsigned char *input);
1574 static unsigned int stb_decompress(unsigned char *output, const unsigned char *input, unsigned int length);
1575 static const char* GetDefaultCompressedFontDataTTFBase85();
1576 static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; }
1577 static void Decode85(const unsigned char* src, unsigned char* dst)
1578 {
1579 while (*src)
1580 {
1581 unsigned int tmp = Decode85Byte(src[0]) + 85*(Decode85Byte(src[1]) + 85*(Decode85Byte(src[2]) + 85*(Decode85Byte(src[3]) + 85*Decode85Byte(src[4]))));
1582 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.
1583 src += 5;
1584 dst += 4;
1585 }
1586 }
1587
1588 // Load embedded ProggyClean.ttf at size 13, disable oversampling
1589 ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template)
1590 {
1591 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1592 if (!font_cfg_template)
1593 {
1594 font_cfg.OversampleH = font_cfg.OversampleV = 1;
1595 font_cfg.PixelSnapH = true;
1596 }
1597 if (font_cfg.SizePixels <= 0.0f)
1598 font_cfg.SizePixels = 13.0f * 1.0f;
1599 if (font_cfg.Name[0] == '\0')
1600 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "ProggyClean.ttf, %dpx", (int)font_cfg.SizePixels);
1601
1602 const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85();
1603 const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault();
1604 ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_cfg.SizePixels, &font_cfg, glyph_ranges);
1605 font->DisplayOffset.y = 1.0f;
1606 return font;
1607 }
1608
1609 ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
1610 {
1611 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1612 size_t data_size = 0;
1613 void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0);
1614 if (!data)
1615 {
1616 IM_ASSERT(0); // Could not load file.
1617 return NULL;
1618 }
1619 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1620 if (font_cfg.Name[0] == '\0')
1621 {
1622 // Store a short copy of filename into into the font name for convenience
1623 const char* p;
1624 for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {}
1625 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels);
1626 }
1627 return AddFontFromMemoryTTF(data, (int)data_size, size_pixels, &font_cfg, glyph_ranges);
1628 }
1629
1630 // NB: Transfer ownership of 'ttf_data' to ImFontAtlas, unless font_cfg_template->FontDataOwnedByAtlas == false. Owned TTF buffer will be deleted after Build().
1631 ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
1632 {
1633 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1634 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1635 IM_ASSERT(font_cfg.FontData == NULL);
1636 font_cfg.FontData = ttf_data;
1637 font_cfg.FontDataSize = ttf_size;
1638 font_cfg.SizePixels = size_pixels;
1639 if (glyph_ranges)
1640 font_cfg.GlyphRanges = glyph_ranges;
1641 return AddFont(&font_cfg);
1642 }
1643
1644 ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
1645 {
1646 const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data);
1647 unsigned char* buf_decompressed_data = (unsigned char *)ImGui::MemAlloc(buf_decompressed_size);
1648 stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size);
1649
1650 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1651 IM_ASSERT(font_cfg.FontData == NULL);
1652 font_cfg.FontDataOwnedByAtlas = true;
1653 return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges);
1654 }
1655
1656 ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges)
1657 {
1658 int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4;
1659 void* compressed_ttf = ImGui::MemAlloc((size_t)compressed_ttf_size);
1660 Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf);
1661 ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges);
1662 ImGui::MemFree(compressed_ttf);
1663 return font;
1664 }
1665
1666 int ImFontAtlas::AddCustomRectRegular(unsigned int id, int width, int height)
1667 {
1668 IM_ASSERT(id >= 0x10000);
1669 IM_ASSERT(width > 0 && width <= 0xFFFF);
1670 IM_ASSERT(height > 0 && height <= 0xFFFF);
1671 CustomRect r;
1672 r.ID = id;
1673 r.Width = (unsigned short)width;
1674 r.Height = (unsigned short)height;
1675 CustomRects.push_back(r);
1676 return CustomRects.Size - 1; // Return index
1677 }
1678
1679 int ImFontAtlas::AddCustomRectFontGlyph(ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset)
1680 {
1681 IM_ASSERT(font != NULL);
1682 IM_ASSERT(width > 0 && width <= 0xFFFF);
1683 IM_ASSERT(height > 0 && height <= 0xFFFF);
1684 CustomRect r;
1685 r.ID = id;
1686 r.Width = (unsigned short)width;
1687 r.Height = (unsigned short)height;
1688 r.GlyphAdvanceX = advance_x;
1689 r.GlyphOffset = offset;
1690 r.Font = font;
1691 CustomRects.push_back(r);
1692 return CustomRects.Size - 1; // Return index
1693 }
1694
1695 void ImFontAtlas::CalcCustomRectUV(const CustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max)
1696 {
1697 IM_ASSERT(TexWidth > 0 && TexHeight > 0); // Font atlas needs to be built before we can calculate UV coordinates
1698 IM_ASSERT(rect->IsPacked()); // Make sure the rectangle has been packed
1699 *out_uv_min = ImVec2((float)rect->X * TexUvScale.x, (float)rect->Y * TexUvScale.y);
1700 *out_uv_max = ImVec2((float)(rect->X + rect->Width) * TexUvScale.x, (float)(rect->Y + rect->Height) * TexUvScale.y);
1701 }
1702
1703 bool ImFontAtlas::GetMouseCursorTexData(ImGuiMouseCursor cursor_type, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2])
1704 {
1705 if (cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT)
1706 return false;
1707 if (Flags & ImFontAtlasFlags_NoMouseCursors)
1708 return false;
1709
1710 IM_ASSERT(CustomRectIds[0] != -1);
1711 ImFontAtlas::CustomRect& r = CustomRects[CustomRectIds[0]];
1712 IM_ASSERT(r.ID == FONT_ATLAS_DEFAULT_TEX_DATA_ID);
1713 ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2((float)r.X, (float)r.Y);
1714 ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1];
1715 *out_size = size;
1716 *out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2];
1717 out_uv_border[0] = (pos) * TexUvScale;
1718 out_uv_border[1] = (pos + size) * TexUvScale;
1719 pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF + 1;
1720 out_uv_fill[0] = (pos) * TexUvScale;
1721 out_uv_fill[1] = (pos + size) * TexUvScale;
1722 return true;
1723 }
1724
1725 bool ImFontAtlas::Build()
1726 {
1727 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1728 return ImFontAtlasBuildWithStbTruetype(this);
1729 }
1730
1731 void ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_brighten_factor)
1732 {
1733 for (unsigned int i = 0; i < 256; i++)
1734 {
1735 unsigned int value = (unsigned int)(i * in_brighten_factor);
1736 out_table[i] = value > 255 ? 255 : (value & 0xFF);
1737 }
1738 }
1739
1740 void ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride)
1741 {
1742 unsigned char* data = pixels + x + y * stride;
1743 for (int j = h; j > 0; j--, data += stride)
1744 for (int i = 0; i < w; i++)
1745 data[i] = table[data[i]];
1746 }
1747
1748 // Temporary data for one source font (multiple source fonts can be merged into one destination ImFont)
1749 // (C++03 doesn't allow instancing ImVector<> with function-local types so we declare the type here.)
1750 struct ImFontBuildSrcData
1751 {
1752 stbtt_fontinfo FontInfo;
1753 stbtt_pack_range PackRange; // Hold the list of codepoints to pack (essentially points to Codepoints.Data)
1754 stbrp_rect* Rects; // Rectangle to pack. We first fill in their size and the packer will give us their position.
1755 stbtt_packedchar* PackedChars; // Output glyphs
1756 const ImWchar* SrcRanges; // Ranges as requested by user (user is allowed to request too much, e.g. 0x0020..0xFFFF)
1757 int DstIndex; // Index into atlas->Fonts[] and dst_tmp_array[]
1758 int GlyphsHighest; // Highest requested codepoint
1759 int GlyphsCount; // Glyph count (excluding missing glyphs and glyphs already set by an earlier source font)
1760 ImBoolVector GlyphsSet; // Glyph bit map (random access, 1-bit per codepoint. This will be a maximum of 8KB)
1761 ImVector<int> GlyphsList; // Glyph codepoints list (flattened version of GlyphsMap)
1762 };
1763
1764 // Temporary data for one destination ImFont* (multiple source fonts can be merged into one destination ImFont)
1765 struct ImFontBuildDstData
1766 {
1767 int SrcCount; // Number of source fonts targeting this destination font.
1768 int GlyphsHighest;
1769 int GlyphsCount;
1770 ImBoolVector GlyphsSet; // This is used to resolve collision when multiple sources are merged into a same destination font.
1771 };
1772
1773 static void UnpackBoolVectorToFlatIndexList(const ImBoolVector* in, ImVector<int>* out)
1774 {
1775 IM_ASSERT(sizeof(in->Storage.Data[0]) == sizeof(int));
1776 const int* it_begin = in->Storage.begin();
1777 const int* it_end = in->Storage.end();
1778 for (const int* it = it_begin; it < it_end; it++)
1779 if (int entries_32 = *it)
1780 for (int bit_n = 0; bit_n < 32; bit_n++)
1781 if (entries_32 & (1u << bit_n))
1782 out->push_back((int)((it - it_begin) << 5) + bit_n);
1783 }
1784
1785 bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
1786 {
1787 IM_ASSERT(atlas->ConfigData.Size > 0);
1788
1789 ImFontAtlasBuildRegisterDefaultCustomRects(atlas);
1790
1791 // Clear atlas
1792 atlas->TexID = (ImTextureID)NULL;
1793 atlas->TexWidth = atlas->TexHeight = 0;
1794 atlas->TexUvScale = ImVec2(0.0f, 0.0f);
1795 atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f);
1796 atlas->ClearTexData();
1797
1798 // Temporary storage for building
1799 ImVector<ImFontBuildSrcData> src_tmp_array;
1800 ImVector<ImFontBuildDstData> dst_tmp_array;
1801 src_tmp_array.resize(atlas->ConfigData.Size);
1802 dst_tmp_array.resize(atlas->Fonts.Size);
1803 memset(src_tmp_array.Data, 0, (size_t)src_tmp_array.size_in_bytes());
1804 memset(dst_tmp_array.Data, 0, (size_t)dst_tmp_array.size_in_bytes());
1805
1806 // 1. Initialize font loading structure, check font data validity
1807 for (int src_i = 0; src_i < atlas->ConfigData.Size; src_i++)
1808 {
1809 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
1810 ImFontConfig& cfg = atlas->ConfigData[src_i];
1811 IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == atlas));
1812
1813 // Find index from cfg.DstFont (we allow the user to set cfg.DstFont. Also it makes casual debugging nicer than when storing indices)
1814 src_tmp.DstIndex = -1;
1815 for (int output_i = 0; output_i < atlas->Fonts.Size && src_tmp.DstIndex == -1; output_i++)
1816 if (cfg.DstFont == atlas->Fonts[output_i])
1817 src_tmp.DstIndex = output_i;
1818 IM_ASSERT(src_tmp.DstIndex != -1); // cfg.DstFont not pointing within atlas->Fonts[] array?
1819 if (src_tmp.DstIndex == -1)
1820 return false;
1821
1822 // Initialize helper structure for font loading and verify that the TTF/OTF data is correct
1823 const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo);
1824 IM_ASSERT(font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found.");
1825 if (!stbtt_InitFont(&src_tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset))
1826 return false;
1827
1828 // Measure highest codepoints
1829 ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
1830 src_tmp.SrcRanges = cfg.GlyphRanges ? cfg.GlyphRanges : atlas->GetGlyphRangesDefault();
1831 for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
1832 src_tmp.GlyphsHighest = ImMax(src_tmp.GlyphsHighest, (int)src_range[1]);
1833 dst_tmp.SrcCount++;
1834 dst_tmp.GlyphsHighest = ImMax(dst_tmp.GlyphsHighest, src_tmp.GlyphsHighest);
1835 }
1836
1837 // 2. For every requested codepoint, check for their presence in the font data, and handle redundancy or overlaps between source fonts to avoid unused glyphs.
1838 int total_glyphs_count = 0;
1839 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
1840 {
1841 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
1842 ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
1843 ImFontConfig& cfg = atlas->ConfigData[src_i];
1844 src_tmp.GlyphsSet.Resize(src_tmp.GlyphsHighest + 1);
1845 if (dst_tmp.SrcCount > 1 && dst_tmp.GlyphsSet.Storage.empty())
1846 dst_tmp.GlyphsSet.Resize(dst_tmp.GlyphsHighest + 1);
1847
1848 for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
1849 for (int codepoint = src_range[0]; codepoint <= src_range[1]; codepoint++)
1850 {
1851 if (cfg.MergeMode && dst_tmp.GlyphsSet.GetBit(codepoint)) // Don't overwrite existing glyphs. We could make this an option (e.g. MergeOverwrite)
1852 continue;
1853 if (!stbtt_FindGlyphIndex(&src_tmp.FontInfo, codepoint)) // It is actually in the font?
1854 continue;
1855
1856 // Add to avail set/counters
1857 src_tmp.GlyphsCount++;
1858 dst_tmp.GlyphsCount++;
1859 src_tmp.GlyphsSet.SetBit(codepoint, true);
1860 if (dst_tmp.SrcCount > 1)
1861 dst_tmp.GlyphsSet.SetBit(codepoint, true);
1862 total_glyphs_count++;
1863 }
1864 }
1865
1866 // 3. Unpack our bit map into a flat list (we now have all the Unicode points that we know are requested _and_ available _and_ not overlapping another)
1867 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
1868 {
1869 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
1870 src_tmp.GlyphsList.reserve(src_tmp.GlyphsCount);
1871 UnpackBoolVectorToFlatIndexList(&src_tmp.GlyphsSet, &src_tmp.GlyphsList);
1872 src_tmp.GlyphsSet.Clear();
1873 IM_ASSERT(src_tmp.GlyphsList.Size == src_tmp.GlyphsCount);
1874 }
1875 for (int dst_i = 0; dst_i < dst_tmp_array.Size; dst_i++)
1876 dst_tmp_array[dst_i].GlyphsSet.Clear();
1877 dst_tmp_array.clear();
1878
1879 // Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0)
1880 // (We technically don't need to zero-clear buf_rects, but let's do it for the sake of sanity)
1881 ImVector<stbrp_rect> buf_rects;
1882 ImVector<stbtt_packedchar> buf_packedchars;
1883 buf_rects.resize(total_glyphs_count);
1884 buf_packedchars.resize(total_glyphs_count);
1885 memset(buf_rects.Data, 0, (size_t)buf_rects.size_in_bytes());
1886 memset(buf_packedchars.Data, 0, (size_t)buf_packedchars.size_in_bytes());
1887
1888 // 4. Gather glyphs sizes so we can pack them in our virtual canvas.
1889 int total_surface = 0;
1890 int buf_rects_out_n = 0;
1891 int buf_packedchars_out_n = 0;
1892 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
1893 {
1894 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
1895 if (src_tmp.GlyphsCount == 0)
1896 continue;
1897
1898 src_tmp.Rects = &buf_rects[buf_rects_out_n];
1899 src_tmp.PackedChars = &buf_packedchars[buf_packedchars_out_n];
1900 buf_rects_out_n += src_tmp.GlyphsCount;
1901 buf_packedchars_out_n += src_tmp.GlyphsCount;
1902
1903 // Convert our ranges in the format stb_truetype wants
1904 ImFontConfig& cfg = atlas->ConfigData[src_i];
1905 src_tmp.PackRange.font_size = cfg.SizePixels;
1906 src_tmp.PackRange.first_unicode_codepoint_in_range = 0;
1907 src_tmp.PackRange.array_of_unicode_codepoints = src_tmp.GlyphsList.Data;
1908 src_tmp.PackRange.num_chars = src_tmp.GlyphsList.Size;
1909 src_tmp.PackRange.chardata_for_range = src_tmp.PackedChars;
1910 src_tmp.PackRange.h_oversample = (unsigned char)cfg.OversampleH;
1911 src_tmp.PackRange.v_oversample = (unsigned char)cfg.OversampleV;
1912
1913 // Gather the sizes of all rectangles we will need to pack (this loop is based on stbtt_PackFontRangesGatherRects)
1914 const float scale = (cfg.SizePixels > 0) ? stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels) : stbtt_ScaleForMappingEmToPixels(&src_tmp.FontInfo, -cfg.SizePixels);
1915 const int padding = atlas->TexGlyphPadding;
1916 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsList.Size; glyph_i++)
1917 {
1918 int x0, y0, x1, y1;
1919 const int glyph_index_in_font = stbtt_FindGlyphIndex(&src_tmp.FontInfo, src_tmp.GlyphsList[glyph_i]);
1920 IM_ASSERT(glyph_index_in_font != 0);
1921 stbtt_GetGlyphBitmapBoxSubpixel(&src_tmp.FontInfo, glyph_index_in_font, scale * cfg.OversampleH, scale * cfg.OversampleV, 0, 0, &x0, &y0, &x1, &y1);
1922 src_tmp.Rects[glyph_i].w = (stbrp_coord)(x1 - x0 + padding + cfg.OversampleH - 1);
1923 src_tmp.Rects[glyph_i].h = (stbrp_coord)(y1 - y0 + padding + cfg.OversampleV - 1);
1924 total_surface += src_tmp.Rects[glyph_i].w * src_tmp.Rects[glyph_i].h;
1925 }
1926 }
1927
1928 // We need a width for the skyline algorithm, any width!
1929 // The exact width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height.
1930 // User can override TexDesiredWidth and TexGlyphPadding if they wish, otherwise we use a simple heuristic to select the width based on expected surface.
1931 const int surface_sqrt = (int)ImSqrt((float)total_surface) + 1;
1932 atlas->TexHeight = 0;
1933 if (atlas->TexDesiredWidth > 0)
1934 atlas->TexWidth = atlas->TexDesiredWidth;
1935 else
1936 atlas->TexWidth = (surface_sqrt >= 4096*0.7f) ? 4096 : (surface_sqrt >= 2048*0.7f) ? 2048 : (surface_sqrt >= 1024*0.7f) ? 1024 : 512;
1937
1938 // 5. Start packing
1939 // Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values).
1940 const int TEX_HEIGHT_MAX = 1024 * 32;
1941 stbtt_pack_context spc = {};
1942 stbtt_PackBegin(&spc, NULL, atlas->TexWidth, TEX_HEIGHT_MAX, 0, atlas->TexGlyphPadding, NULL);
1943 ImFontAtlasBuildPackCustomRects(atlas, spc.pack_info);
1944
1945 // 6. Pack each source font. No rendering yet, we are working with rectangles in an infinitely tall texture at this point.
1946 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
1947 {
1948 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
1949 if (src_tmp.GlyphsCount == 0)
1950 continue;
1951
1952 stbrp_pack_rects((stbrp_context*)spc.pack_info, src_tmp.Rects, src_tmp.GlyphsCount);
1953
1954 // Extend texture height and mark missing glyphs as non-packed so we won't render them.
1955 // FIXME: We are not handling packing failure here (would happen if we got off TEX_HEIGHT_MAX or if a single if larger than TexWidth?)
1956 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
1957 if (src_tmp.Rects[glyph_i].was_packed)
1958 atlas->TexHeight = ImMax(atlas->TexHeight, src_tmp.Rects[glyph_i].y + src_tmp.Rects[glyph_i].h);
1959 }
1960
1961 // 7. Allocate texture
1962 atlas->TexHeight = (atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) ? (atlas->TexHeight + 1) : ImUpperPowerOfTwo(atlas->TexHeight);
1963 atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight);
1964 atlas->TexPixelsAlpha8 = (unsigned char*)ImGui::MemAlloc(atlas->TexWidth * atlas->TexHeight);
1965 memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight);
1966 spc.pixels = atlas->TexPixelsAlpha8;
1967 spc.height = atlas->TexHeight;
1968
1969 // 8. Render/rasterize font characters into the texture
1970 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
1971 {
1972 ImFontConfig& cfg = atlas->ConfigData[src_i];
1973 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
1974 if (src_tmp.GlyphsCount == 0)
1975 continue;
1976
1977 stbtt_PackFontRangesRenderIntoRects(&spc, &src_tmp.FontInfo, &src_tmp.PackRange, 1, src_tmp.Rects);
1978
1979 // Apply multiply operator
1980 if (cfg.RasterizerMultiply != 1.0f)
1981 {
1982 unsigned char multiply_table[256];
1983 ImFontAtlasBuildMultiplyCalcLookupTable(multiply_table, cfg.RasterizerMultiply);
1984 stbrp_rect* r = &src_tmp.Rects[0];
1985 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++, r++)
1986 if (r->was_packed)
1987 ImFontAtlasBuildMultiplyRectAlpha8(multiply_table, atlas->TexPixelsAlpha8, r->x, r->y, r->w, r->h, atlas->TexWidth * 1);
1988 }
1989 src_tmp.Rects = NULL;
1990 }
1991
1992 // End packing
1993 stbtt_PackEnd(&spc);
1994 buf_rects.clear();
1995
1996 // 9. Setup ImFont and glyphs for runtime
1997 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
1998 {
1999 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2000 if (src_tmp.GlyphsCount == 0)
2001 continue;
2002
2003 ImFontConfig& cfg = atlas->ConfigData[src_i];
2004 ImFont* dst_font = cfg.DstFont; // We can have multiple input fonts writing into a same destination font (when using MergeMode=true)
2005
2006 const float font_scale = stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels);
2007 int unscaled_ascent, unscaled_descent, unscaled_line_gap;
2008 stbtt_GetFontVMetrics(&src_tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap);
2009
2010 const float ascent = ImFloor(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1));
2011 const float descent = ImFloor(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1));
2012 ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent);
2013 const float font_off_x = cfg.GlyphOffset.x;
2014 const float font_off_y = cfg.GlyphOffset.y + (float)(int)(dst_font->Ascent + 0.5f);
2015
2016 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
2017 {
2018 const int codepoint = src_tmp.GlyphsList[glyph_i];
2019 const stbtt_packedchar& pc = src_tmp.PackedChars[glyph_i];
2020
2021 const float char_advance_x_org = pc.xadvance;
2022 const float char_advance_x_mod = ImClamp(char_advance_x_org, cfg.GlyphMinAdvanceX, cfg.GlyphMaxAdvanceX);
2023 float char_off_x = font_off_x;
2024 if (char_advance_x_org != char_advance_x_mod)
2025 char_off_x += cfg.PixelSnapH ? (float)(int)((char_advance_x_mod - char_advance_x_org) * 0.5f) : (char_advance_x_mod - char_advance_x_org) * 0.5f;
2026
2027 // Register glyph
2028 stbtt_aligned_quad q;
2029 float dummy_x = 0.0f, dummy_y = 0.0f;
2030 stbtt_GetPackedQuad(src_tmp.PackedChars, atlas->TexWidth, atlas->TexHeight, glyph_i, &dummy_x, &dummy_y, &q, 0);
2031 dst_font->AddGlyph((ImWchar)codepoint, q.x0 + char_off_x, q.y0 + font_off_y, q.x1 + char_off_x, q.y1 + font_off_y, q.s0, q.t0, q.s1, q.t1, char_advance_x_mod);
2032 }
2033 }
2034
2035 // Cleanup temporary (ImVector doesn't honor destructor)
2036 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2037 src_tmp_array[src_i].~ImFontBuildSrcData();
2038
2039 ImFontAtlasBuildFinish(atlas);
2040 return true;
2041 }
2042
2043 void ImFontAtlasBuildRegisterDefaultCustomRects(ImFontAtlas* atlas)
2044 {
2045 if (atlas->CustomRectIds[0] >= 0)
2046 return;
2047 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
2048 atlas->CustomRectIds[0] = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_ID, FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF*2+1, FONT_ATLAS_DEFAULT_TEX_DATA_H);
2049 else
2050 atlas->CustomRectIds[0] = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_ID, 2, 2);
2051 }
2052
2053 void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent)
2054 {
2055 if (!font_config->MergeMode)
2056 {
2057 font->ClearOutputData();
2058 font->FontSize = font_config->SizePixels;
2059 font->ConfigData = font_config;
2060 font->ContainerAtlas = atlas;
2061 font->Ascent = ascent;
2062 font->Descent = descent;
2063 }
2064 font->ConfigDataCount++;
2065 }
2066
2067 void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opaque)
2068 {
2069 stbrp_context* pack_context = (stbrp_context*)stbrp_context_opaque;
2070 IM_ASSERT(pack_context != NULL);
2071
2072 ImVector<ImFontAtlas::CustomRect>& user_rects = atlas->CustomRects;
2073 IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong.
2074
2075 ImVector<stbrp_rect> pack_rects;
2076 pack_rects.resize(user_rects.Size);
2077 memset(pack_rects.Data, 0, (size_t)pack_rects.size_in_bytes());
2078 for (int i = 0; i < user_rects.Size; i++)
2079 {
2080 pack_rects[i].w = user_rects[i].Width;
2081 pack_rects[i].h = user_rects[i].Height;
2082 }
2083 stbrp_pack_rects(pack_context, &pack_rects[0], pack_rects.Size);
2084 for (int i = 0; i < pack_rects.Size; i++)
2085 if (pack_rects[i].was_packed)
2086 {
2087 user_rects[i].X = pack_rects[i].x;
2088 user_rects[i].Y = pack_rects[i].y;
2089 IM_ASSERT(pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height);
2090 atlas->TexHeight = ImMax(atlas->TexHeight, pack_rects[i].y + pack_rects[i].h);
2091 }
2092 }
2093
2094 static void ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas* atlas)
2095 {
2096 IM_ASSERT(atlas->CustomRectIds[0] >= 0);
2097 IM_ASSERT(atlas->TexPixelsAlpha8 != NULL);
2098 ImFontAtlas::CustomRect& r = atlas->CustomRects[atlas->CustomRectIds[0]];
2099 IM_ASSERT(r.ID == FONT_ATLAS_DEFAULT_TEX_DATA_ID);
2100 IM_ASSERT(r.IsPacked());
2101
2102 const int w = atlas->TexWidth;
2103 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
2104 {
2105 // Render/copy pixels
2106 IM_ASSERT(r.Width == FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF * 2 + 1 && r.Height == FONT_ATLAS_DEFAULT_TEX_DATA_H);
2107 for (int y = 0, n = 0; y < FONT_ATLAS_DEFAULT_TEX_DATA_H; y++)
2108 for (int x = 0; x < FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF; x++, n++)
2109 {
2110 const int offset0 = (int)(r.X + x) + (int)(r.Y + y) * w;
2111 const int offset1 = offset0 + FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF + 1;
2112 atlas->TexPixelsAlpha8[offset0] = FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[n] == '.' ? 0xFF : 0x00;
2113 atlas->TexPixelsAlpha8[offset1] = FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[n] == 'X' ? 0xFF : 0x00;
2114 }
2115 }
2116 else
2117 {
2118 IM_ASSERT(r.Width == 2 && r.Height == 2);
2119 const int offset = (int)(r.X) + (int)(r.Y) * w;
2120 atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF;
2121 }
2122 atlas->TexUvWhitePixel = ImVec2((r.X + 0.5f) * atlas->TexUvScale.x, (r.Y + 0.5f) * atlas->TexUvScale.y);
2123 }
2124
2125 void ImFontAtlasBuildFinish(ImFontAtlas* atlas)
2126 {
2127 // Render into our custom data block
2128 ImFontAtlasBuildRenderDefaultTexData(atlas);
2129
2130 // Register custom rectangle glyphs
2131 for (int i = 0; i < atlas->CustomRects.Size; i++)
2132 {
2133 const ImFontAtlas::CustomRect& r = atlas->CustomRects[i];
2134 if (r.Font == NULL || r.ID > 0x10000)
2135 continue;
2136
2137 IM_ASSERT(r.Font->ContainerAtlas == atlas);
2138 ImVec2 uv0, uv1;
2139 atlas->CalcCustomRectUV(&r, &uv0, &uv1);
2140 r.Font->AddGlyph((ImWchar)r.ID, r.GlyphOffset.x, r.GlyphOffset.y, r.GlyphOffset.x + r.Width, r.GlyphOffset.y + r.Height, uv0.x, uv0.y, uv1.x, uv1.y, r.GlyphAdvanceX);
2141 }
2142
2143 // Build all fonts lookup tables
2144 for (int i = 0; i < atlas->Fonts.Size; i++)
2145 if (atlas->Fonts[i]->DirtyLookupTables)
2146 atlas->Fonts[i]->BuildLookupTable();
2147 }
2148
2149 // Retrieve list of range (2 int per range, values are inclusive)
2150 const ImWchar* ImFontAtlas::GetGlyphRangesDefault()
2151 {
2152 static const ImWchar ranges[] =
2153 {
2154 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2155 0,
2156 };
2157 return &ranges[0];
2158 }
2159
2160 const ImWchar* ImFontAtlas::GetGlyphRangesKorean()
2161 {
2162 static const ImWchar ranges[] =
2163 {
2164 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2165 0x3131, 0x3163, // Korean alphabets
2166 0xAC00, 0xD79D, // Korean characters
2167 0,
2168 };
2169 return &ranges[0];
2170 }
2171
2172 const ImWchar* ImFontAtlas::GetGlyphRangesChineseFull()
2173 {
2174 static const ImWchar ranges[] =
2175 {
2176 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2177 0x2000, 0x206F, // General Punctuation
2178 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
2179 0x31F0, 0x31FF, // Katakana Phonetic Extensions
2180 0xFF00, 0xFFEF, // Half-width characters
2181 0x4e00, 0x9FAF, // CJK Ideograms
2182 0,
2183 };
2184 return &ranges[0];
2185 }
2186
2187 static void UnpackAccumulativeOffsetsIntoRanges(int base_codepoint, const short* accumulative_offsets, int accumulative_offsets_count, ImWchar* out_ranges)
2188 {
2189 for (int n = 0; n < accumulative_offsets_count; n++, out_ranges += 2)
2190 {
2191 out_ranges[0] = out_ranges[1] = (ImWchar)(base_codepoint + accumulative_offsets[n]);
2192 base_codepoint += accumulative_offsets[n];
2193 }
2194 out_ranges[0] = 0;
2195 }
2196
2197 //-------------------------------------------------------------------------
2198 // [SECTION] ImFontAtlas glyph ranges helpers
2199 //-------------------------------------------------------------------------
2200
2201 const ImWchar* ImFontAtlas::GetGlyphRangesChineseSimplifiedCommon()
2202 {
2203 // Store 2500 regularly used characters for Simplified Chinese.
2204 // 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
2205 // This table covers 97.97% of all characters used during the month in July, 1987.
2206 // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
2207 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
2208 static const short accumulative_offsets_from_0x4E00[] =
2209 {
2210 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,
2211 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,
2212 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,
2213 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,
2214 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,
2215 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,
2216 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,
2217 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,
2218 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,
2219 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,
2220 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,
2221 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,
2222 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,
2223 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,
2224 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,
2225 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,
2226 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,
2227 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,
2228 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,
2229 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,
2230 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,
2231 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,
2232 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,
2233 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,
2234 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,
2235 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,
2236 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,
2237 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,
2238 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,
2239 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,
2240 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,
2241 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,
2242 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,
2243 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,
2244 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,
2245 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,
2246 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,
2247 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,
2248 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,
2249 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
2250 };
2251 static ImWchar base_ranges[] = // not zero-terminated
2252 {
2253 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2254 0x2000, 0x206F, // General Punctuation
2255 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
2256 0x31F0, 0x31FF, // Katakana Phonetic Extensions
2257 0xFF00, 0xFFEF // Half-width characters
2258 };
2259 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00) * 2 + 1] = { 0 };
2260 if (!full_ranges[0])
2261 {
2262 memcpy(full_ranges, base_ranges, sizeof(base_ranges));
2263 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
2264 }
2265 return &full_ranges[0];
2266 }
2267
2268 const ImWchar* ImFontAtlas::GetGlyphRangesJapanese()
2269 {
2270 // 1946 common ideograms code points for Japanese
2271 // Sourced from http://theinstructionlimit.com/common-kanji-character-ranges-for-xna-spritefont-rendering
2272 // FIXME: Source a list of the revised 2136 Joyo Kanji list from 2010 and rebuild this.
2273 // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
2274 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
2275 static const short accumulative_offsets_from_0x4E00[] =
2276 {
2277 0,1,2,4,1,1,1,1,2,1,6,2,2,1,8,5,7,11,1,2,10,10,8,2,4,20,2,11,8,2,1,2,1,6,2,1,7,5,3,7,1,1,13,7,9,1,4,6,1,2,1,10,1,1,9,2,2,4,5,6,14,1,1,9,3,18,
2278 5,4,2,2,10,7,1,1,1,3,2,4,3,23,2,10,12,2,14,2,4,13,1,6,10,3,1,7,13,6,4,13,5,2,3,17,2,2,5,7,6,4,1,7,14,16,6,13,9,15,1,1,7,16,4,7,1,19,9,2,7,15,
2279 2,6,5,13,25,4,14,13,11,25,1,1,1,2,1,2,2,3,10,11,3,3,1,1,4,4,2,1,4,9,1,4,3,5,5,2,7,12,11,15,7,16,4,5,16,2,1,1,6,3,3,1,1,2,7,6,6,7,1,4,7,6,1,1,
2280 2,1,12,3,3,9,5,8,1,11,1,2,3,18,20,4,1,3,6,1,7,3,5,5,7,2,2,12,3,1,4,2,3,2,3,11,8,7,4,17,1,9,25,1,1,4,2,2,4,1,2,7,1,1,1,3,1,2,6,16,1,2,1,1,3,12,
2281 20,2,5,20,8,7,6,2,1,1,1,1,6,2,1,2,10,1,1,6,1,3,1,2,1,4,1,12,4,1,3,1,1,1,1,1,10,4,7,5,13,1,15,1,1,30,11,9,1,15,38,14,1,32,17,20,1,9,31,2,21,9,
2282 4,49,22,2,1,13,1,11,45,35,43,55,12,19,83,1,3,2,3,13,2,1,7,3,18,3,13,8,1,8,18,5,3,7,25,24,9,24,40,3,17,24,2,1,6,2,3,16,15,6,7,3,12,1,9,7,3,3,
2283 3,15,21,5,16,4,5,12,11,11,3,6,3,2,31,3,2,1,1,23,6,6,1,4,2,6,5,2,1,1,3,3,22,2,6,2,3,17,3,2,4,5,1,9,5,1,1,6,15,12,3,17,2,14,2,8,1,23,16,4,2,23,
2284 8,15,23,20,12,25,19,47,11,21,65,46,4,3,1,5,6,1,2,5,26,2,1,1,3,11,1,1,1,2,1,2,3,1,1,10,2,3,1,1,1,3,6,3,2,2,6,6,9,2,2,2,6,2,5,10,2,4,1,2,1,2,2,
2285 3,1,1,3,1,2,9,23,9,2,1,1,1,1,5,3,2,1,10,9,6,1,10,2,31,25,3,7,5,40,1,15,6,17,7,27,180,1,3,2,2,1,1,1,6,3,10,7,1,3,6,17,8,6,2,2,1,3,5,5,8,16,14,
2286 15,1,1,4,1,2,1,1,1,3,2,7,5,6,2,5,10,1,4,2,9,1,1,11,6,1,44,1,3,7,9,5,1,3,1,1,10,7,1,10,4,2,7,21,15,7,2,5,1,8,3,4,1,3,1,6,1,4,2,1,4,10,8,1,4,5,
2287 1,5,10,2,7,1,10,1,1,3,4,11,10,29,4,7,3,5,2,3,33,5,2,19,3,1,4,2,6,31,11,1,3,3,3,1,8,10,9,12,11,12,8,3,14,8,6,11,1,4,41,3,1,2,7,13,1,5,6,2,6,12,
2288 12,22,5,9,4,8,9,9,34,6,24,1,1,20,9,9,3,4,1,7,2,2,2,6,2,28,5,3,6,1,4,6,7,4,2,1,4,2,13,6,4,4,3,1,8,8,3,2,1,5,1,2,2,3,1,11,11,7,3,6,10,8,6,16,16,
2289 22,7,12,6,21,5,4,6,6,3,6,1,3,2,1,2,8,29,1,10,1,6,13,6,6,19,31,1,13,4,4,22,17,26,33,10,4,15,12,25,6,67,10,2,3,1,6,10,2,6,2,9,1,9,4,4,1,2,16,2,
2290 5,9,2,3,8,1,8,3,9,4,8,6,4,8,11,3,2,1,1,3,26,1,7,5,1,11,1,5,3,5,2,13,6,39,5,1,5,2,11,6,10,5,1,15,5,3,6,19,21,22,2,4,1,6,1,8,1,4,8,2,4,2,2,9,2,
2291 1,1,1,4,3,6,3,12,7,1,14,2,4,10,2,13,1,17,7,3,2,1,3,2,13,7,14,12,3,1,29,2,8,9,15,14,9,14,1,3,1,6,5,9,11,3,38,43,20,7,7,8,5,15,12,19,15,81,8,7,
2292 1,5,73,13,37,28,8,8,1,15,18,20,165,28,1,6,11,8,4,14,7,15,1,3,3,6,4,1,7,14,1,1,11,30,1,5,1,4,14,1,4,2,7,52,2,6,29,3,1,9,1,21,3,5,1,26,3,11,14,
2293 11,1,17,5,1,2,1,3,2,8,1,2,9,12,1,1,2,3,8,3,24,12,7,7,5,17,3,3,3,1,23,10,4,4,6,3,1,16,17,22,3,10,21,16,16,6,4,10,2,1,1,2,8,8,6,5,3,3,3,39,25,
2294 15,1,1,16,6,7,25,15,6,6,12,1,22,13,1,4,9,5,12,2,9,1,12,28,8,3,5,10,22,60,1,2,40,4,61,63,4,1,13,12,1,4,31,12,1,14,89,5,16,6,29,14,2,5,49,18,18,
2295 5,29,33,47,1,17,1,19,12,2,9,7,39,12,3,7,12,39,3,1,46,4,12,3,8,9,5,31,15,18,3,2,2,66,19,13,17,5,3,46,124,13,57,34,2,5,4,5,8,1,1,1,4,3,1,17,5,
2296 3,5,3,1,8,5,6,3,27,3,26,7,12,7,2,17,3,7,18,78,16,4,36,1,2,1,6,2,1,39,17,7,4,13,4,4,4,1,10,4,2,4,6,3,10,1,19,1,26,2,4,33,2,73,47,7,3,8,2,4,15,
2297 18,1,29,2,41,14,1,21,16,41,7,39,25,13,44,2,2,10,1,13,7,1,7,3,5,20,4,8,2,49,1,10,6,1,6,7,10,7,11,16,3,12,20,4,10,3,1,2,11,2,28,9,2,4,7,2,15,1,
2298 27,1,28,17,4,5,10,7,3,24,10,11,6,26,3,2,7,2,2,49,16,10,16,15,4,5,27,61,30,14,38,22,2,7,5,1,3,12,23,24,17,17,3,3,2,4,1,6,2,7,5,1,1,5,1,1,9,4,
2299 1,3,6,1,8,2,8,4,14,3,5,11,4,1,3,32,1,19,4,1,13,11,5,2,1,8,6,8,1,6,5,13,3,23,11,5,3,16,3,9,10,1,24,3,198,52,4,2,2,5,14,5,4,22,5,20,4,11,6,41,
2300 1,5,2,2,11,5,2,28,35,8,22,3,18,3,10,7,5,3,4,1,5,3,8,9,3,6,2,16,22,4,5,5,3,3,18,23,2,6,23,5,27,8,1,33,