imgui_draw.cc (109959B)
1 // dear imgui, v1.50 2 // (drawing and font code) 3 4 // Contains implementation for 5 // - ImDrawList 6 // - ImDrawData 7 // - ImFontAtlas 8 // - ImFont 9 // - Default font data 10 11 #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS) 12 #define _CRT_SECURE_NO_WARNINGS 13 #endif 14 15 #include "imgui.h" 16 #define IMGUI_DEFINE_MATH_OPERATORS 17 #define IMGUI_DEFINE_PLACEMENT_NEW 18 #include "imgui_internal.h" 19 20 #include <stdio.h> // vsnprintf, sscanf, printf 21 #if !defined(alloca) 22 #ifdef _WIN32 23 #include <malloc.h> // alloca 24 #elif (defined(__FreeBSD__) || defined(FreeBSD_kernel) || defined(__DragonFly__)) && !defined(__GLIBC__) 25 #include <stdlib.h> // alloca. FreeBSD uses stdlib.h unless GLIBC 26 #else 27 #include <alloca.h> // alloca 28 #endif 29 #endif 30 31 #ifdef _MSC_VER 32 #pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff) 33 #pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen 34 #define snprintf _snprintf 35 #endif 36 37 #ifdef __clang__ 38 #pragma clang diagnostic ignored "-Wold-style-cast" // warning : use of old-style cast // yes, they are more terse. 39 #pragma clang diagnostic ignored "-Wfloat-equal" // warning : comparing floating point with == or != is unsafe // storing and comparing against same constants ok. 40 #pragma clang diagnostic ignored "-Wglobal-constructors" // warning : declaration requires a global destructor // similar to above, not sure what the exact difference it. 41 #pragma clang diagnostic ignored "-Wsign-conversion" // warning : implicit conversion changes signedness // 42 #if __has_warning("-Wreserved-id-macro") 43 #pragma clang diagnostic ignored "-Wreserved-id-macro" // warning : macro name is a reserved identifier // 44 #endif 45 #elif defined(__GNUC__) 46 #pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used 47 #pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function 48 #pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value 49 #pragma GCC diagnostic ignored "-Wcast-qual" // warning: cast from type 'xxxx' to type 'xxxx' casts away qualifiers 50 #endif 51 52 //------------------------------------------------------------------------- 53 // STB libraries implementation 54 //------------------------------------------------------------------------- 55 56 //#define IMGUI_STB_NAMESPACE ImGuiStb 57 //#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION 58 //#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION 59 60 #ifdef IMGUI_STB_NAMESPACE 61 namespace IMGUI_STB_NAMESPACE 62 { 63 #endif 64 65 #ifdef _MSC_VER 66 #pragma warning (push) 67 #pragma warning (disable: 4456) // declaration of 'xx' hides previous local declaration 68 #endif 69 70 #ifdef __clang__ 71 #pragma clang diagnostic push 72 #pragma clang diagnostic ignored "-Wold-style-cast" // warning : use of old-style cast // yes, they are more terse. 73 #pragma clang diagnostic ignored "-Wunused-function" 74 #pragma clang diagnostic ignored "-Wmissing-prototypes" 75 #endif 76 77 #ifdef __GNUC__ 78 #pragma GCC diagnostic push 79 #pragma GCC diagnostic ignored "-Wtype-limits" // warning: comparison is always true due to limited range of data type [-Wtype-limits] 80 #endif 81 82 #define STBRP_ASSERT(x) IM_ASSERT(x) 83 #ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION 84 #define STBRP_STATIC 85 #define STB_RECT_PACK_IMPLEMENTATION 86 #endif 87 #include "libs/stb/stb_rect_pack.h" 88 89 #define STBTT_malloc(x,u) ((void)(u), ImGui::MemAlloc(x)) 90 #define STBTT_free(x,u) ((void)(u), ImGui::MemFree(x)) 91 #define STBTT_assert(x) IM_ASSERT(x) 92 #ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION 93 #define STBTT_STATIC 94 #define STB_TRUETYPE_IMPLEMENTATION 95 #else 96 #define STBTT_DEF extern 97 #endif 98 #include "libs/stb/stb_truetype.h" 99 100 #ifdef __GNUC__ 101 #pragma GCC diagnostic pop 102 #endif 103 104 #ifdef __clang__ 105 #pragma clang diagnostic pop 106 #endif 107 108 #ifdef _MSC_VER 109 #pragma warning (pop) 110 #endif 111 112 #ifdef IMGUI_STB_NAMESPACE 113 } // namespace ImGuiStb 114 using namespace IMGUI_STB_NAMESPACE; 115 #endif 116 117 //----------------------------------------------------------------------------- 118 // ImDrawList 119 //----------------------------------------------------------------------------- 120 121 static const ImVec4 GNullClipRect(-8192.0f, -8192.0f, +8192.0f, +8192.0f); // Large values that are easy to encode in a few bits+shift 122 123 void ImDrawList::Clear() 124 { 125 CmdBuffer.resize(0); 126 IdxBuffer.resize(0); 127 VtxBuffer.resize(0); 128 _VtxCurrentIdx = 0; 129 _VtxWritePtr = NULL; 130 _IdxWritePtr = NULL; 131 _ClipRectStack.resize(0); 132 _TextureIdStack.resize(0); 133 _Path.resize(0); 134 _ChannelsCurrent = 0; 135 _ChannelsCount = 1; 136 // NB: Do not clear channels so our allocations are re-used after the first frame. 137 } 138 139 void ImDrawList::ClearFreeMemory() 140 { 141 CmdBuffer.clear(); 142 IdxBuffer.clear(); 143 VtxBuffer.clear(); 144 _VtxCurrentIdx = 0; 145 _VtxWritePtr = NULL; 146 _IdxWritePtr = NULL; 147 _ClipRectStack.clear(); 148 _TextureIdStack.clear(); 149 _Path.clear(); 150 _ChannelsCurrent = 0; 151 _ChannelsCount = 1; 152 for (int i = 0; i < _Channels.Size; i++) 153 { 154 if (i == 0) memset(&_Channels[0], 0, sizeof(_Channels[0])); // channel 0 is a copy of CmdBuffer/IdxBuffer, don't destruct again 155 _Channels[i].CmdBuffer.clear(); 156 _Channels[i].IdxBuffer.clear(); 157 } 158 _Channels.clear(); 159 } 160 161 // Use macros because C++ is a terrible language, we want guaranteed inline, no code in header, and no overhead in Debug mode 162 #define GetCurrentClipRect() (_ClipRectStack.Size ? _ClipRectStack.Data[_ClipRectStack.Size-1] : GNullClipRect) 163 #define GetCurrentTextureId() (_TextureIdStack.Size ? _TextureIdStack.Data[_TextureIdStack.Size-1] : NULL) 164 165 void ImDrawList::AddDrawCmd() 166 { 167 ImDrawCmd draw_cmd; 168 draw_cmd.ClipRect = GetCurrentClipRect(); 169 draw_cmd.TextureId = GetCurrentTextureId(); 170 171 IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w); 172 CmdBuffer.push_back(draw_cmd); 173 } 174 175 void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data) 176 { 177 ImDrawCmd* current_cmd = CmdBuffer.Size ? &CmdBuffer.back() : NULL; 178 if (!current_cmd || current_cmd->ElemCount != 0 || current_cmd->UserCallback != NULL) 179 { 180 AddDrawCmd(); 181 current_cmd = &CmdBuffer.back(); 182 } 183 current_cmd->UserCallback = callback; 184 current_cmd->UserCallbackData = callback_data; 185 186 AddDrawCmd(); // Force a new command after us (see comment below) 187 } 188 189 // 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. 190 // 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. 191 void ImDrawList::UpdateClipRect() 192 { 193 // If current command is used with different settings we need to add a new command 194 const ImVec4 curr_clip_rect = GetCurrentClipRect(); 195 ImDrawCmd* curr_cmd = CmdBuffer.Size > 0 ? &CmdBuffer.Data[CmdBuffer.Size-1] : NULL; 196 if (!curr_cmd || (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &curr_clip_rect, sizeof(ImVec4)) != 0) || curr_cmd->UserCallback != NULL) 197 { 198 AddDrawCmd(); 199 return; 200 } 201 202 // Try to merge with previous command if it matches, else use current command 203 ImDrawCmd* prev_cmd = CmdBuffer.Size > 1 ? curr_cmd - 1 : NULL; 204 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) 205 CmdBuffer.pop_back(); 206 else 207 curr_cmd->ClipRect = curr_clip_rect; 208 } 209 210 void ImDrawList::UpdateTextureID() 211 { 212 // If current command is used with different settings we need to add a new command 213 const ImTextureID curr_texture_id = GetCurrentTextureId(); 214 ImDrawCmd* curr_cmd = CmdBuffer.Size ? &CmdBuffer.back() : NULL; 215 if (!curr_cmd || (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != curr_texture_id) || curr_cmd->UserCallback != NULL) 216 { 217 AddDrawCmd(); 218 return; 219 } 220 221 // Try to merge with previous command if it matches, else use current command 222 ImDrawCmd* prev_cmd = CmdBuffer.Size > 1 ? curr_cmd - 1 : NULL; 223 if (prev_cmd && prev_cmd->TextureId == curr_texture_id && memcmp(&prev_cmd->ClipRect, &GetCurrentClipRect(), sizeof(ImVec4)) == 0 && prev_cmd->UserCallback == NULL) 224 CmdBuffer.pop_back(); 225 else 226 curr_cmd->TextureId = curr_texture_id; 227 } 228 229 #undef GetCurrentClipRect 230 #undef GetCurrentTextureId 231 232 // 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) 233 void ImDrawList::PushClipRect(ImVec2 cr_min, ImVec2 cr_max, bool intersect_with_current_clip_rect) 234 { 235 ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y); 236 if (intersect_with_current_clip_rect && _ClipRectStack.Size) 237 { 238 ImVec4 current = _ClipRectStack.Data[_ClipRectStack.Size-1]; 239 if (cr.x < current.x) cr.x = current.x; 240 if (cr.y < current.y) cr.y = current.y; 241 if (cr.z > current.z) cr.z = current.z; 242 if (cr.w > current.w) cr.w = current.w; 243 } 244 cr.z = ImMax(cr.x, cr.z); 245 cr.w = ImMax(cr.y, cr.w); 246 247 _ClipRectStack.push_back(cr); 248 UpdateClipRect(); 249 } 250 251 void ImDrawList::PushClipRectFullScreen() 252 { 253 PushClipRect(ImVec2(GNullClipRect.x, GNullClipRect.y), ImVec2(GNullClipRect.z, GNullClipRect.w)); 254 //PushClipRect(GetVisibleRect()); // FIXME-OPT: This would be more correct but we're not supposed to access ImGuiContext from here? 255 } 256 257 void ImDrawList::PopClipRect() 258 { 259 IM_ASSERT(_ClipRectStack.Size > 0); 260 _ClipRectStack.pop_back(); 261 UpdateClipRect(); 262 } 263 264 void ImDrawList::PushTextureID(const ImTextureID& texture_id) 265 { 266 _TextureIdStack.push_back(texture_id); 267 UpdateTextureID(); 268 } 269 270 void ImDrawList::PopTextureID() 271 { 272 IM_ASSERT(_TextureIdStack.Size > 0); 273 _TextureIdStack.pop_back(); 274 UpdateTextureID(); 275 } 276 277 void ImDrawList::ChannelsSplit(int channels_count) 278 { 279 IM_ASSERT(_ChannelsCurrent == 0 && _ChannelsCount == 1); 280 int old_channels_count = _Channels.Size; 281 if (old_channels_count < channels_count) 282 _Channels.resize(channels_count); 283 _ChannelsCount = channels_count; 284 285 // _Channels[] (24 bytes each) hold storage that we'll swap with this->_CmdBuffer/_IdxBuffer 286 // 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. 287 // When we switch to the next channel, we'll copy _CmdBuffer/_IdxBuffer into _Channels[0] and then _Channels[1] into _CmdBuffer/_IdxBuffer 288 memset(&_Channels[0], 0, sizeof(ImDrawChannel)); 289 for (int i = 1; i < channels_count; i++) 290 { 291 if (i >= old_channels_count) 292 { 293 IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel(); 294 } 295 else 296 { 297 _Channels[i].CmdBuffer.resize(0); 298 _Channels[i].IdxBuffer.resize(0); 299 } 300 if (_Channels[i].CmdBuffer.Size == 0) 301 { 302 ImDrawCmd draw_cmd; 303 draw_cmd.ClipRect = _ClipRectStack.back(); 304 draw_cmd.TextureId = _TextureIdStack.back(); 305 _Channels[i].CmdBuffer.push_back(draw_cmd); 306 } 307 } 308 } 309 310 void ImDrawList::ChannelsMerge() 311 { 312 // 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. 313 if (_ChannelsCount <= 1) 314 return; 315 316 ChannelsSetCurrent(0); 317 if (CmdBuffer.Size && CmdBuffer.back().ElemCount == 0) 318 CmdBuffer.pop_back(); 319 320 int new_cmd_buffer_count = 0, new_idx_buffer_count = 0; 321 for (int i = 1; i < _ChannelsCount; i++) 322 { 323 ImDrawChannel& ch = _Channels[i]; 324 if (ch.CmdBuffer.Size && ch.CmdBuffer.back().ElemCount == 0) 325 ch.CmdBuffer.pop_back(); 326 new_cmd_buffer_count += ch.CmdBuffer.Size; 327 new_idx_buffer_count += ch.IdxBuffer.Size; 328 } 329 CmdBuffer.resize(CmdBuffer.Size + new_cmd_buffer_count); 330 IdxBuffer.resize(IdxBuffer.Size + new_idx_buffer_count); 331 332 ImDrawCmd* cmd_write = CmdBuffer.Data + CmdBuffer.Size - new_cmd_buffer_count; 333 _IdxWritePtr = IdxBuffer.Data + IdxBuffer.Size - new_idx_buffer_count; 334 for (int i = 1; i < _ChannelsCount; i++) 335 { 336 ImDrawChannel& ch = _Channels[i]; 337 if (int sz = ch.CmdBuffer.Size) { memcpy(cmd_write, ch.CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; } 338 if (int sz = ch.IdxBuffer.Size) { memcpy(_IdxWritePtr, ch.IdxBuffer.Data, sz * sizeof(ImDrawIdx)); _IdxWritePtr += sz; } 339 } 340 AddDrawCmd(); 341 _ChannelsCount = 1; 342 } 343 344 void ImDrawList::ChannelsSetCurrent(int idx) 345 { 346 IM_ASSERT(idx < _ChannelsCount); 347 if (_ChannelsCurrent == idx) return; 348 memcpy(&_Channels.Data[_ChannelsCurrent].CmdBuffer, &CmdBuffer, sizeof(CmdBuffer)); // copy 12 bytes, four times 349 memcpy(&_Channels.Data[_ChannelsCurrent].IdxBuffer, &IdxBuffer, sizeof(IdxBuffer)); 350 _ChannelsCurrent = idx; 351 memcpy(&CmdBuffer, &_Channels.Data[_ChannelsCurrent].CmdBuffer, sizeof(CmdBuffer)); 352 memcpy(&IdxBuffer, &_Channels.Data[_ChannelsCurrent].IdxBuffer, sizeof(IdxBuffer)); 353 _IdxWritePtr = IdxBuffer.Data + IdxBuffer.Size; 354 } 355 356 // NB: this can be called with negative count for removing primitives (as long as the result does not underflow) 357 void ImDrawList::PrimReserve(int idx_count, int vtx_count) 358 { 359 ImDrawCmd& draw_cmd = CmdBuffer.Data[CmdBuffer.Size-1]; 360 draw_cmd.ElemCount += idx_count; 361 362 int vtx_buffer_size = VtxBuffer.Size; 363 VtxBuffer.resize(vtx_buffer_size + vtx_count); 364 _VtxWritePtr = VtxBuffer.Data + vtx_buffer_size; 365 366 int idx_buffer_size = IdxBuffer.Size; 367 IdxBuffer.resize(idx_buffer_size + idx_count); 368 _IdxWritePtr = IdxBuffer.Data + idx_buffer_size; 369 } 370 371 // Fully unrolled with inline call to keep our debug builds decently fast. 372 void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col) 373 { 374 ImVec2 b(c.x, a.y), d(a.x, c.y), uv(GImGui->FontTexUvWhitePixel); 375 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx; 376 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2); 377 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3); 378 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; 379 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col; 380 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col; 381 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col; 382 _VtxWritePtr += 4; 383 _VtxCurrentIdx += 4; 384 _IdxWritePtr += 6; 385 } 386 387 void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col) 388 { 389 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); 390 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx; 391 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2); 392 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3); 393 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col; 394 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col; 395 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col; 396 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col; 397 _VtxWritePtr += 4; 398 _VtxCurrentIdx += 4; 399 _IdxWritePtr += 6; 400 } 401 402 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) 403 { 404 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx; 405 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2); 406 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3); 407 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col; 408 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col; 409 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col; 410 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col; 411 _VtxWritePtr += 4; 412 _VtxCurrentIdx += 4; 413 _IdxWritePtr += 6; 414 } 415 416 // TODO: Thickness anti-aliased lines cap are missing their AA fringe. 417 void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, bool closed, float thickness, bool anti_aliased) 418 { 419 if (points_count < 2) 420 return; 421 422 const ImVec2 uv = GImGui->FontTexUvWhitePixel; 423 anti_aliased &= GImGui->Style.AntiAliasedLines; 424 //if (ImGui::GetIO().KeyCtrl) anti_aliased = false; // Debug 425 426 int count = points_count; 427 if (!closed) 428 count = points_count-1; 429 430 const bool thick_line = thickness > 1.0f; 431 if (anti_aliased) 432 { 433 // Anti-aliased stroke 434 const float AA_SIZE = 1.0f; 435 const ImU32 col_trans = col & IM_COL32(255,255,255,0); 436 437 const int idx_count = thick_line ? count*18 : count*12; 438 const int vtx_count = thick_line ? points_count*4 : points_count*3; 439 PrimReserve(idx_count, vtx_count); 440 441 // Temporary buffer 442 ImVec2* temp_normals = (ImVec2*)alloca(points_count * (thick_line ? 5 : 3) * sizeof(ImVec2)); 443 ImVec2* temp_points = temp_normals + points_count; 444 445 for (int i1 = 0; i1 < count; i1++) 446 { 447 const int i2 = (i1+1) == points_count ? 0 : i1+1; 448 ImVec2 diff = points[i2] - points[i1]; 449 diff *= ImInvLength(diff, 1.0f); 450 temp_normals[i1].x = diff.y; 451 temp_normals[i1].y = -diff.x; 452 } 453 if (!closed) 454 temp_normals[points_count-1] = temp_normals[points_count-2]; 455 456 if (!thick_line) 457 { 458 if (!closed) 459 { 460 temp_points[0] = points[0] + temp_normals[0] * AA_SIZE; 461 temp_points[1] = points[0] - temp_normals[0] * AA_SIZE; 462 temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * AA_SIZE; 463 temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * AA_SIZE; 464 } 465 466 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer. 467 unsigned int idx1 = _VtxCurrentIdx; 468 for (int i1 = 0; i1 < count; i1++) 469 { 470 const int i2 = (i1+1) == points_count ? 0 : i1+1; 471 unsigned int idx2 = (i1+1) == points_count ? _VtxCurrentIdx : idx1+3; 472 473 // Average normals 474 ImVec2 dm = (temp_normals[i1] + temp_normals[i2]) * 0.5f; 475 float dmr2 = dm.x*dm.x + dm.y*dm.y; 476 if (dmr2 > 0.000001f) 477 { 478 float scale = 1.0f / dmr2; 479 if (scale > 100.0f) scale = 100.0f; 480 dm *= scale; 481 } 482 dm *= AA_SIZE; 483 temp_points[i2*2+0] = points[i2] + dm; 484 temp_points[i2*2+1] = points[i2] - dm; 485 486 // Add indexes 487 _IdxWritePtr[0] = (ImDrawIdx)(idx2+0); _IdxWritePtr[1] = (ImDrawIdx)(idx1+0); _IdxWritePtr[2] = (ImDrawIdx)(idx1+2); 488 _IdxWritePtr[3] = (ImDrawIdx)(idx1+2); _IdxWritePtr[4] = (ImDrawIdx)(idx2+2); _IdxWritePtr[5] = (ImDrawIdx)(idx2+0); 489 _IdxWritePtr[6] = (ImDrawIdx)(idx2+1); _IdxWritePtr[7] = (ImDrawIdx)(idx1+1); _IdxWritePtr[8] = (ImDrawIdx)(idx1+0); 490 _IdxWritePtr[9] = (ImDrawIdx)(idx1+0); _IdxWritePtr[10]= (ImDrawIdx)(idx2+0); _IdxWritePtr[11]= (ImDrawIdx)(idx2+1); 491 _IdxWritePtr += 12; 492 493 idx1 = idx2; 494 } 495 496 // Add vertexes 497 for (int i = 0; i < points_count; i++) 498 { 499 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; 500 _VtxWritePtr[1].pos = temp_points[i*2+0]; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans; 501 _VtxWritePtr[2].pos = temp_points[i*2+1]; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col_trans; 502 _VtxWritePtr += 3; 503 } 504 } 505 else 506 { 507 const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f; 508 if (!closed) 509 { 510 temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE); 511 temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness); 512 temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness); 513 temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE); 514 temp_points[(points_count-1)*4+0] = points[points_count-1] + temp_normals[points_count-1] * (half_inner_thickness + AA_SIZE); 515 temp_points[(points_count-1)*4+1] = points[points_count-1] + temp_normals[points_count-1] * (half_inner_thickness); 516 temp_points[(points_count-1)*4+2] = points[points_count-1] - temp_normals[points_count-1] * (half_inner_thickness); 517 temp_points[(points_count-1)*4+3] = points[points_count-1] - temp_normals[points_count-1] * (half_inner_thickness + AA_SIZE); 518 } 519 520 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer. 521 unsigned int idx1 = _VtxCurrentIdx; 522 for (int i1 = 0; i1 < count; i1++) 523 { 524 const int i2 = (i1+1) == points_count ? 0 : i1+1; 525 unsigned int idx2 = (i1+1) == points_count ? _VtxCurrentIdx : idx1+4; 526 527 // Average normals 528 ImVec2 dm = (temp_normals[i1] + temp_normals[i2]) * 0.5f; 529 float dmr2 = dm.x*dm.x + dm.y*dm.y; 530 if (dmr2 > 0.000001f) 531 { 532 float scale = 1.0f / dmr2; 533 if (scale > 100.0f) scale = 100.0f; 534 dm *= scale; 535 } 536 ImVec2 dm_out = dm * (half_inner_thickness + AA_SIZE); 537 ImVec2 dm_in = dm * half_inner_thickness; 538 temp_points[i2*4+0] = points[i2] + dm_out; 539 temp_points[i2*4+1] = points[i2] + dm_in; 540 temp_points[i2*4+2] = points[i2] - dm_in; 541 temp_points[i2*4+3] = points[i2] - dm_out; 542 543 // Add indexes 544 _IdxWritePtr[0] = (ImDrawIdx)(idx2+1); _IdxWritePtr[1] = (ImDrawIdx)(idx1+1); _IdxWritePtr[2] = (ImDrawIdx)(idx1+2); 545 _IdxWritePtr[3] = (ImDrawIdx)(idx1+2); _IdxWritePtr[4] = (ImDrawIdx)(idx2+2); _IdxWritePtr[5] = (ImDrawIdx)(idx2+1); 546 _IdxWritePtr[6] = (ImDrawIdx)(idx2+1); _IdxWritePtr[7] = (ImDrawIdx)(idx1+1); _IdxWritePtr[8] = (ImDrawIdx)(idx1+0); 547 _IdxWritePtr[9] = (ImDrawIdx)(idx1+0); _IdxWritePtr[10] = (ImDrawIdx)(idx2+0); _IdxWritePtr[11] = (ImDrawIdx)(idx2+1); 548 _IdxWritePtr[12] = (ImDrawIdx)(idx2+2); _IdxWritePtr[13] = (ImDrawIdx)(idx1+2); _IdxWritePtr[14] = (ImDrawIdx)(idx1+3); 549 _IdxWritePtr[15] = (ImDrawIdx)(idx1+3); _IdxWritePtr[16] = (ImDrawIdx)(idx2+3); _IdxWritePtr[17] = (ImDrawIdx)(idx2+2); 550 _IdxWritePtr += 18; 551 552 idx1 = idx2; 553 } 554 555 // Add vertexes 556 for (int i = 0; i < points_count; i++) 557 { 558 _VtxWritePtr[0].pos = temp_points[i*4+0]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col_trans; 559 _VtxWritePtr[1].pos = temp_points[i*4+1]; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col; 560 _VtxWritePtr[2].pos = temp_points[i*4+2]; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col; 561 _VtxWritePtr[3].pos = temp_points[i*4+3]; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col_trans; 562 _VtxWritePtr += 4; 563 } 564 } 565 _VtxCurrentIdx += (ImDrawIdx)vtx_count; 566 } 567 else 568 { 569 // Non Anti-aliased Stroke 570 const int idx_count = count*6; 571 const int vtx_count = count*4; // FIXME-OPT: Not sharing edges 572 PrimReserve(idx_count, vtx_count); 573 574 for (int i1 = 0; i1 < count; i1++) 575 { 576 const int i2 = (i1+1) == points_count ? 0 : i1+1; 577 const ImVec2& p1 = points[i1]; 578 const ImVec2& p2 = points[i2]; 579 ImVec2 diff = p2 - p1; 580 diff *= ImInvLength(diff, 1.0f); 581 582 const float dx = diff.x * (thickness * 0.5f); 583 const float dy = diff.y * (thickness * 0.5f); 584 _VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; 585 _VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col; 586 _VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col; 587 _VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col; 588 _VtxWritePtr += 4; 589 590 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx+1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx+2); 591 _IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx+2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx+3); 592 _IdxWritePtr += 6; 593 _VtxCurrentIdx += 4; 594 } 595 } 596 } 597 598 void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col, bool anti_aliased) 599 { 600 const ImVec2 uv = GImGui->FontTexUvWhitePixel; 601 anti_aliased &= GImGui->Style.AntiAliasedShapes; 602 //if (ImGui::GetIO().KeyCtrl) anti_aliased = false; // Debug 603 604 if (anti_aliased) 605 { 606 // Anti-aliased Fill 607 const float AA_SIZE = 1.0f; 608 const ImU32 col_trans = col & IM_COL32(255,255,255,0); 609 const int idx_count = (points_count-2)*3 + points_count*6; 610 const int vtx_count = (points_count*2); 611 PrimReserve(idx_count, vtx_count); 612 613 // Add indexes for fill 614 unsigned int vtx_inner_idx = _VtxCurrentIdx; 615 unsigned int vtx_outer_idx = _VtxCurrentIdx+1; 616 for (int i = 2; i < points_count; i++) 617 { 618 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx+((i-1)<<1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx+(i<<1)); 619 _IdxWritePtr += 3; 620 } 621 622 // Compute normals 623 ImVec2* temp_normals = (ImVec2*)alloca(points_count * sizeof(ImVec2)); 624 for (int i0 = points_count-1, i1 = 0; i1 < points_count; i0 = i1++) 625 { 626 const ImVec2& p0 = points[i0]; 627 const ImVec2& p1 = points[i1]; 628 ImVec2 diff = p1 - p0; 629 diff *= ImInvLength(diff, 1.0f); 630 temp_normals[i0].x = diff.y; 631 temp_normals[i0].y = -diff.x; 632 } 633 634 for (int i0 = points_count-1, i1 = 0; i1 < points_count; i0 = i1++) 635 { 636 // Average normals 637 const ImVec2& n0 = temp_normals[i0]; 638 const ImVec2& n1 = temp_normals[i1]; 639 ImVec2 dm = (n0 + n1) * 0.5f; 640 float dmr2 = dm.x*dm.x + dm.y*dm.y; 641 if (dmr2 > 0.000001f) 642 { 643 float scale = 1.0f / dmr2; 644 if (scale > 100.0f) scale = 100.0f; 645 dm *= scale; 646 } 647 dm *= AA_SIZE * 0.5f; 648 649 // Add vertices 650 _VtxWritePtr[0].pos = (points[i1] - dm); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; // Inner 651 _VtxWritePtr[1].pos = (points[i1] + dm); _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans; // Outer 652 _VtxWritePtr += 2; 653 654 // Add indexes for fringes 655 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx+(i1<<1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx+(i0<<1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx+(i0<<1)); 656 _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx+(i0<<1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx+(i1<<1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx+(i1<<1)); 657 _IdxWritePtr += 6; 658 } 659 _VtxCurrentIdx += (ImDrawIdx)vtx_count; 660 } 661 else 662 { 663 // Non Anti-aliased Fill 664 const int idx_count = (points_count-2)*3; 665 const int vtx_count = points_count; 666 PrimReserve(idx_count, vtx_count); 667 for (int i = 0; i < vtx_count; i++) 668 { 669 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; 670 _VtxWritePtr++; 671 } 672 for (int i = 2; i < points_count; i++) 673 { 674 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx+i-1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx+i); 675 _IdxWritePtr += 3; 676 } 677 _VtxCurrentIdx += (ImDrawIdx)vtx_count; 678 } 679 } 680 681 void ImDrawList::PathArcToFast(const ImVec2& centre, float radius, int amin, int amax) 682 { 683 static ImVec2 circle_vtx[12]; 684 static bool circle_vtx_builds = false; 685 const int circle_vtx_count = IM_ARRAYSIZE(circle_vtx); 686 if (!circle_vtx_builds) 687 { 688 for (int i = 0; i < circle_vtx_count; i++) 689 { 690 const float a = ((float)i / (float)circle_vtx_count) * 2*IM_PI; 691 circle_vtx[i].x = cosf(a); 692 circle_vtx[i].y = sinf(a); 693 } 694 circle_vtx_builds = true; 695 } 696 697 if (amin > amax) return; 698 if (radius == 0.0f) 699 { 700 _Path.push_back(centre); 701 } 702 else 703 { 704 _Path.reserve(_Path.Size + (amax - amin + 1)); 705 for (int a = amin; a <= amax; a++) 706 { 707 const ImVec2& c = circle_vtx[a % circle_vtx_count]; 708 _Path.push_back(ImVec2(centre.x + c.x * radius, centre.y + c.y * radius)); 709 } 710 } 711 } 712 713 void ImDrawList::PathArcTo(const ImVec2& centre, float radius, float amin, float amax, int num_segments) 714 { 715 if (radius == 0.0f) 716 _Path.push_back(centre); 717 _Path.reserve(_Path.Size + (num_segments + 1)); 718 for (int i = 0; i <= num_segments; i++) 719 { 720 const float a = amin + ((float)i / (float)num_segments) * (amax - amin); 721 _Path.push_back(ImVec2(centre.x + cosf(a) * radius, centre.y + sinf(a) * radius)); 722 } 723 } 724 725 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) 726 { 727 float dx = x4 - x1; 728 float dy = y4 - y1; 729 float d2 = ((x2 - x4) * dy - (y2 - y4) * dx); 730 float d3 = ((x3 - x4) * dy - (y3 - y4) * dx); 731 d2 = (d2 >= 0) ? d2 : -d2; 732 d3 = (d3 >= 0) ? d3 : -d3; 733 if ((d2+d3) * (d2+d3) < tess_tol * (dx*dx + dy*dy)) 734 { 735 path->push_back(ImVec2(x4, y4)); 736 } 737 else if (level < 10) 738 { 739 float x12 = (x1+x2)*0.5f, y12 = (y1+y2)*0.5f; 740 float x23 = (x2+x3)*0.5f, y23 = (y2+y3)*0.5f; 741 float x34 = (x3+x4)*0.5f, y34 = (y3+y4)*0.5f; 742 float x123 = (x12+x23)*0.5f, y123 = (y12+y23)*0.5f; 743 float x234 = (x23+x34)*0.5f, y234 = (y23+y34)*0.5f; 744 float x1234 = (x123+x234)*0.5f, y1234 = (y123+y234)*0.5f; 745 746 PathBezierToCasteljau(path, x1,y1, x12,y12, x123,y123, x1234,y1234, tess_tol, level+1); 747 PathBezierToCasteljau(path, x1234,y1234, x234,y234, x34,y34, x4,y4, tess_tol, level+1); 748 } 749 } 750 751 void ImDrawList::PathBezierCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments) 752 { 753 ImVec2 p1 = _Path.back(); 754 if (num_segments == 0) 755 { 756 // Auto-tessellated 757 PathBezierToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, GImGui->Style.CurveTessellationTol, 0); 758 } 759 else 760 { 761 float t_step = 1.0f / (float)num_segments; 762 for (int i_step = 1; i_step <= num_segments; i_step++) 763 { 764 float t = t_step * i_step; 765 float u = 1.0f - t; 766 float w1 = u*u*u; 767 float w2 = 3*u*u*t; 768 float w3 = 3*u*t*t; 769 float w4 = t*t*t; 770 _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)); 771 } 772 } 773 } 774 775 void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, int rounding_corners) 776 { 777 float r = rounding; 778 r = ImMin(r, fabsf(b.x-a.x) * ( ((rounding_corners&(1|2))==(1|2)) || ((rounding_corners&(4|8))==(4|8)) ? 0.5f : 1.0f ) - 1.0f); 779 r = ImMin(r, fabsf(b.y-a.y) * ( ((rounding_corners&(1|8))==(1|8)) || ((rounding_corners&(2|4))==(2|4)) ? 0.5f : 1.0f ) - 1.0f); 780 781 if (r <= 0.0f || rounding_corners == 0) 782 { 783 PathLineTo(a); 784 PathLineTo(ImVec2(b.x,a.y)); 785 PathLineTo(b); 786 PathLineTo(ImVec2(a.x,b.y)); 787 } 788 else 789 { 790 const float r0 = (rounding_corners & 1) ? r : 0.0f; 791 const float r1 = (rounding_corners & 2) ? r : 0.0f; 792 const float r2 = (rounding_corners & 4) ? r : 0.0f; 793 const float r3 = (rounding_corners & 8) ? r : 0.0f; 794 PathArcToFast(ImVec2(a.x+r0,a.y+r0), r0, 6, 9); 795 PathArcToFast(ImVec2(b.x-r1,a.y+r1), r1, 9, 12); 796 PathArcToFast(ImVec2(b.x-r2,b.y-r2), r2, 0, 3); 797 PathArcToFast(ImVec2(a.x+r3,b.y-r3), r3, 3, 6); 798 } 799 } 800 801 void ImDrawList::AddLine(const ImVec2& a, const ImVec2& b, ImU32 col, float thickness) 802 { 803 if ((col & IM_COL32_A_MASK) == 0) 804 return; 805 PathLineTo(a + ImVec2(0.5f,0.5f)); 806 PathLineTo(b + ImVec2(0.5f,0.5f)); 807 PathStroke(col, false, thickness); 808 } 809 810 // a: upper-left, b: lower-right. we don't render 1 px sized rectangles properly. 811 void ImDrawList::AddRect(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding, int rounding_corners_flags, float thickness) 812 { 813 if ((col & IM_COL32_A_MASK) == 0) 814 return; 815 PathRect(a + ImVec2(0.5f,0.5f), b - ImVec2(0.5f,0.5f), rounding, rounding_corners_flags); 816 PathStroke(col, true, thickness); 817 } 818 819 void ImDrawList::AddRectFilled(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding, int rounding_corners_flags) 820 { 821 if ((col & IM_COL32_A_MASK) == 0) 822 return; 823 if (rounding > 0.0f) 824 { 825 PathRect(a, b, rounding, rounding_corners_flags); 826 PathFillConvex(col); 827 } 828 else 829 { 830 PrimReserve(6, 4); 831 PrimRect(a, b, col); 832 } 833 } 834 835 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) 836 { 837 if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0) 838 return; 839 840 const ImVec2 uv = GImGui->FontTexUvWhitePixel; 841 PrimReserve(6, 4); 842 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+2)); 843 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+3)); 844 PrimWriteVtx(a, uv, col_upr_left); 845 PrimWriteVtx(ImVec2(c.x, a.y), uv, col_upr_right); 846 PrimWriteVtx(c, uv, col_bot_right); 847 PrimWriteVtx(ImVec2(a.x, c.y), uv, col_bot_left); 848 } 849 850 void ImDrawList::AddQuad(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, ImU32 col, float thickness) 851 { 852 if ((col & IM_COL32_A_MASK) == 0) 853 return; 854 855 PathLineTo(a); 856 PathLineTo(b); 857 PathLineTo(c); 858 PathLineTo(d); 859 PathStroke(col, true, thickness); 860 } 861 862 void ImDrawList::AddQuadFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, ImU32 col) 863 { 864 if ((col & IM_COL32_A_MASK) == 0) 865 return; 866 867 PathLineTo(a); 868 PathLineTo(b); 869 PathLineTo(c); 870 PathLineTo(d); 871 PathFillConvex(col); 872 } 873 874 void ImDrawList::AddTriangle(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col, float thickness) 875 { 876 if ((col & IM_COL32_A_MASK) == 0) 877 return; 878 879 PathLineTo(a); 880 PathLineTo(b); 881 PathLineTo(c); 882 PathStroke(col, true, thickness); 883 } 884 885 void ImDrawList::AddTriangleFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col) 886 { 887 if ((col & IM_COL32_A_MASK) == 0) 888 return; 889 890 PathLineTo(a); 891 PathLineTo(b); 892 PathLineTo(c); 893 PathFillConvex(col); 894 } 895 896 void ImDrawList::AddCircle(const ImVec2& centre, float radius, ImU32 col, int num_segments, float thickness) 897 { 898 if ((col & IM_COL32_A_MASK) == 0) 899 return; 900 901 const float a_max = IM_PI*2.0f * ((float)num_segments - 1.0f) / (float)num_segments; 902 PathArcTo(centre, radius-0.5f, 0.0f, a_max, num_segments); 903 PathStroke(col, true, thickness); 904 } 905 906 void ImDrawList::AddCircleFilled(const ImVec2& centre, float radius, ImU32 col, int num_segments) 907 { 908 if ((col & IM_COL32_A_MASK) == 0) 909 return; 910 911 const float a_max = IM_PI*2.0f * ((float)num_segments - 1.0f) / (float)num_segments; 912 PathArcTo(centre, radius, 0.0f, a_max, num_segments); 913 PathFillConvex(col); 914 } 915 916 void ImDrawList::AddBezierCurve(const ImVec2& pos0, const ImVec2& cp0, const ImVec2& cp1, const ImVec2& pos1, ImU32 col, float thickness, int num_segments) 917 { 918 if ((col & IM_COL32_A_MASK) == 0) 919 return; 920 921 PathLineTo(pos0); 922 PathBezierCurveTo(cp0, cp1, pos1, num_segments); 923 PathStroke(col, false, thickness); 924 } 925 926 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) 927 { 928 if ((col & IM_COL32_A_MASK) == 0) 929 return; 930 931 if (text_end == NULL) 932 text_end = text_begin + strlen(text_begin); 933 if (text_begin == text_end) 934 return; 935 936 // Note: This is one of the few instance of breaking the encapsulation of ImDrawList, as we pull this from ImGui state, but it is just SO useful. 937 // Might just move Font/FontSize to ImDrawList? 938 if (font == NULL) 939 font = GImGui->Font; 940 if (font_size == 0.0f) 941 font_size = GImGui->FontSize; 942 943 IM_ASSERT(font->ContainerAtlas->TexID == _TextureIdStack.back()); // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font. 944 945 ImVec4 clip_rect = _ClipRectStack.back(); 946 if (cpu_fine_clip_rect) 947 { 948 clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x); 949 clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y); 950 clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z); 951 clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w); 952 } 953 font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL); 954 } 955 956 void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end) 957 { 958 AddText(GImGui->Font, GImGui->FontSize, pos, col, text_begin, text_end); 959 } 960 961 void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, ImU32 col) 962 { 963 if ((col & IM_COL32_A_MASK) == 0) 964 return; 965 966 // FIXME-OPT: This is wasting draw calls. 967 const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back(); 968 if (push_texture_id) 969 PushTextureID(user_texture_id); 970 971 PrimReserve(6, 4); 972 PrimRectUV(a, b, uv_a, uv_b, col); 973 974 if (push_texture_id) 975 PopTextureID(); 976 } 977 978 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) 979 { 980 if ((col & IM_COL32_A_MASK) == 0) 981 return; 982 983 const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back(); 984 if (push_texture_id) 985 PushTextureID(user_texture_id); 986 987 PrimReserve(6, 4); 988 PrimQuadUV(a, b, c, d, uv_a, uv_b, uv_c, uv_d, col); 989 990 if (push_texture_id) 991 PopTextureID(); 992 } 993 994 //----------------------------------------------------------------------------- 995 // ImDrawData 996 //----------------------------------------------------------------------------- 997 998 // 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! 999 void ImDrawData::DeIndexAllBuffers() 1000 { 1001 ImVector<ImDrawVert> new_vtx_buffer; 1002 TotalVtxCount = TotalIdxCount = 0; 1003 for (int i = 0; i < CmdListsCount; i++) 1004 { 1005 ImDrawList* cmd_list = CmdLists[i]; 1006 if (cmd_list->IdxBuffer.empty()) 1007 continue; 1008 new_vtx_buffer.resize(cmd_list->IdxBuffer.Size); 1009 for (int j = 0; j < cmd_list->IdxBuffer.Size; j++) 1010 new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]]; 1011 cmd_list->VtxBuffer.swap(new_vtx_buffer); 1012 cmd_list->IdxBuffer.resize(0); 1013 TotalVtxCount += cmd_list->VtxBuffer.Size; 1014 } 1015 } 1016 1017 // Helper to scale the ClipRect field of each ImDrawCmd. Use if your final output buffer is at a different scale than ImGui expects, or if there is a difference between your window resolution and framebuffer resolution. 1018 void ImDrawData::ScaleClipRects(const ImVec2& scale) 1019 { 1020 for (int i = 0; i < CmdListsCount; i++) 1021 { 1022 ImDrawList* cmd_list = CmdLists[i]; 1023 for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++) 1024 { 1025 ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i]; 1026 cmd->ClipRect = ImVec4(cmd->ClipRect.x * scale.x, cmd->ClipRect.y * scale.y, cmd->ClipRect.z * scale.x, cmd->ClipRect.w * scale.y); 1027 } 1028 } 1029 } 1030 1031 //----------------------------------------------------------------------------- 1032 // ImFontAtlas 1033 //----------------------------------------------------------------------------- 1034 1035 ImFontConfig::ImFontConfig() 1036 { 1037 FontData = NULL; 1038 FontDataSize = 0; 1039 FontDataOwnedByAtlas = true; 1040 FontNo = 0; 1041 SizePixels = 0.0f; 1042 OversampleH = 3; 1043 OversampleV = 1; 1044 PixelSnapH = false; 1045 GlyphExtraSpacing = ImVec2(0.0f, 0.0f); 1046 GlyphOffset = ImVec2(0.0f, 0.0f); 1047 GlyphRanges = NULL; 1048 MergeMode = false; 1049 DstFont = NULL; 1050 memset(Name, 0, sizeof(Name)); 1051 } 1052 1053 ImFontAtlas::ImFontAtlas() 1054 { 1055 TexID = NULL; 1056 TexPixelsAlpha8 = NULL; 1057 TexPixelsRGBA32 = NULL; 1058 TexWidth = TexHeight = TexDesiredWidth = 0; 1059 TexUvWhitePixel = ImVec2(0, 0); 1060 } 1061 1062 ImFontAtlas::~ImFontAtlas() 1063 { 1064 Clear(); 1065 } 1066 1067 void ImFontAtlas::ClearInputData() 1068 { 1069 for (int i = 0; i < ConfigData.Size; i++) 1070 if (ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas) 1071 { 1072 ImGui::MemFree(ConfigData[i].FontData); 1073 ConfigData[i].FontData = NULL; 1074 } 1075 1076 // When clearing this we lose access to the font name and other information used to build the font. 1077 for (int i = 0; i < Fonts.Size; i++) 1078 if (Fonts[i]->ConfigData >= ConfigData.Data && Fonts[i]->ConfigData < ConfigData.Data + ConfigData.Size) 1079 { 1080 Fonts[i]->ConfigData = NULL; 1081 Fonts[i]->ConfigDataCount = 0; 1082 } 1083 ConfigData.clear(); 1084 } 1085 1086 void ImFontAtlas::ClearTexData() 1087 { 1088 if (TexPixelsAlpha8) 1089 ImGui::MemFree(TexPixelsAlpha8); 1090 if (TexPixelsRGBA32) 1091 ImGui::MemFree(TexPixelsRGBA32); 1092 TexPixelsAlpha8 = NULL; 1093 TexPixelsRGBA32 = NULL; 1094 } 1095 1096 void ImFontAtlas::ClearFonts() 1097 { 1098 for (int i = 0; i < Fonts.Size; i++) 1099 { 1100 Fonts[i]->~ImFont(); 1101 ImGui::MemFree(Fonts[i]); 1102 } 1103 Fonts.clear(); 1104 } 1105 1106 void ImFontAtlas::Clear() 1107 { 1108 ClearInputData(); 1109 ClearTexData(); 1110 ClearFonts(); 1111 } 1112 1113 void ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel) 1114 { 1115 // Build atlas on demand 1116 if (TexPixelsAlpha8 == NULL) 1117 { 1118 if (ConfigData.empty()) 1119 AddFontDefault(); 1120 Build(); 1121 } 1122 1123 *out_pixels = TexPixelsAlpha8; 1124 if (out_width) *out_width = TexWidth; 1125 if (out_height) *out_height = TexHeight; 1126 if (out_bytes_per_pixel) *out_bytes_per_pixel = 1; 1127 } 1128 1129 void ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel) 1130 { 1131 // Convert to RGBA32 format on demand 1132 // Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp 1133 if (!TexPixelsRGBA32) 1134 { 1135 unsigned char* pixels; 1136 GetTexDataAsAlpha8(&pixels, NULL, NULL); 1137 TexPixelsRGBA32 = (unsigned int*)ImGui::MemAlloc((size_t)(TexWidth * TexHeight * 4)); 1138 const unsigned char* src = pixels; 1139 unsigned int* dst = TexPixelsRGBA32; 1140 for (int n = TexWidth * TexHeight; n > 0; n--) 1141 *dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++)); 1142 } 1143 1144 *out_pixels = (unsigned char*)TexPixelsRGBA32; 1145 if (out_width) *out_width = TexWidth; 1146 if (out_height) *out_height = TexHeight; 1147 if (out_bytes_per_pixel) *out_bytes_per_pixel = 4; 1148 } 1149 1150 ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg) 1151 { 1152 IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0); 1153 IM_ASSERT(font_cfg->SizePixels > 0.0f); 1154 1155 // Create new font 1156 if (!font_cfg->MergeMode) 1157 { 1158 ImFont* font = (ImFont*)ImGui::MemAlloc(sizeof(ImFont)); 1159 IM_PLACEMENT_NEW(font) ImFont(); 1160 Fonts.push_back(font); 1161 } 1162 else 1163 { 1164 IM_ASSERT(!Fonts.empty()); // When using MergeMode make sure that a font has already been added before. You can use ImGui::AddFontDefault() to add the default imgui font. 1165 } 1166 1167 ConfigData.push_back(*font_cfg); 1168 ImFontConfig& new_font_cfg = ConfigData.back(); 1169 if (!new_font_cfg.DstFont) 1170 new_font_cfg.DstFont = Fonts.back(); 1171 if (!new_font_cfg.FontDataOwnedByAtlas) 1172 { 1173 new_font_cfg.FontData = ImGui::MemAlloc(new_font_cfg.FontDataSize); 1174 new_font_cfg.FontDataOwnedByAtlas = true; 1175 memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize); 1176 } 1177 1178 // Invalidate texture 1179 ClearTexData(); 1180 return new_font_cfg.DstFont; 1181 } 1182 1183 // Default font TTF is compressed with stb_compress then base85 encoded (see extra_fonts/binary_to_compressed_c.cpp for encoder) 1184 static unsigned int stb_decompress_length(unsigned char *input); 1185 static unsigned int stb_decompress(unsigned char *output, unsigned char *i, unsigned int length); 1186 static const char* GetDefaultCompressedFontDataTTFBase85(); 1187 static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; } 1188 static void Decode85(const unsigned char* src, unsigned char* dst) 1189 { 1190 while (*src) 1191 { 1192 unsigned int tmp = Decode85Byte(src[0]) + 85*(Decode85Byte(src[1]) + 85*(Decode85Byte(src[2]) + 85*(Decode85Byte(src[3]) + 85*Decode85Byte(src[4])))); 1193 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. 1194 src += 5; 1195 dst += 4; 1196 } 1197 } 1198 1199 // Load embedded ProggyClean.ttf at size 13, disable oversampling 1200 ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template) 1201 { 1202 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); 1203 if (!font_cfg_template) 1204 { 1205 font_cfg.OversampleH = font_cfg.OversampleV = 1; 1206 font_cfg.PixelSnapH = true; 1207 } 1208 if (font_cfg.Name[0] == '\0') strcpy(font_cfg.Name, "ProggyClean.ttf, 13px"); 1209 1210 const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85(); 1211 ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, 13.0f, &font_cfg, GetGlyphRangesDefault()); 1212 return font; 1213 } 1214 1215 ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges) 1216 { 1217 int data_size = 0; 1218 void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0); 1219 if (!data) 1220 { 1221 IM_ASSERT(0); // Could not load file. 1222 return NULL; 1223 } 1224 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); 1225 if (font_cfg.Name[0] == '\0') 1226 { 1227 // Store a short copy of filename into into the font name for convenience 1228 const char* p; 1229 for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {} 1230 snprintf(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels); 1231 } 1232 return AddFontFromMemoryTTF(data, data_size, size_pixels, &font_cfg, glyph_ranges); 1233 } 1234 1235 // NBM Transfer ownership of 'ttf_data' to ImFontAtlas, unless font_cfg_template->FontDataOwnedByAtlas == false. Owned TTF buffer will be deleted after Build(). 1236 ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges) 1237 { 1238 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); 1239 IM_ASSERT(font_cfg.FontData == NULL); 1240 font_cfg.FontData = ttf_data; 1241 font_cfg.FontDataSize = ttf_size; 1242 font_cfg.SizePixels = size_pixels; 1243 if (glyph_ranges) 1244 font_cfg.GlyphRanges = glyph_ranges; 1245 return AddFont(&font_cfg); 1246 } 1247 1248 ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges) 1249 { 1250 const unsigned int buf_decompressed_size = stb_decompress_length((unsigned char*)compressed_ttf_data); 1251 unsigned char* buf_decompressed_data = (unsigned char *)ImGui::MemAlloc(buf_decompressed_size); 1252 stb_decompress(buf_decompressed_data, (unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size); 1253 1254 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); 1255 IM_ASSERT(font_cfg.FontData == NULL); 1256 font_cfg.FontDataOwnedByAtlas = true; 1257 return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges); 1258 } 1259 1260 ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges) 1261 { 1262 int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4; 1263 void* compressed_ttf = ImGui::MemAlloc((size_t)compressed_ttf_size); 1264 Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf); 1265 ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges); 1266 ImGui::MemFree(compressed_ttf); 1267 return font; 1268 } 1269 1270 bool ImFontAtlas::Build() 1271 { 1272 IM_ASSERT(ConfigData.Size > 0); 1273 1274 TexID = NULL; 1275 TexWidth = TexHeight = 0; 1276 TexUvWhitePixel = ImVec2(0, 0); 1277 ClearTexData(); 1278 1279 struct ImFontTempBuildData 1280 { 1281 stbtt_fontinfo FontInfo; 1282 stbrp_rect* Rects; 1283 stbtt_pack_range* Ranges; 1284 int RangesCount; 1285 }; 1286 ImFontTempBuildData* tmp_array = (ImFontTempBuildData*)ImGui::MemAlloc((size_t)ConfigData.Size * sizeof(ImFontTempBuildData)); 1287 1288 // Initialize font information early (so we can error without any cleanup) + count glyphs 1289 int total_glyph_count = 0; 1290 int total_glyph_range_count = 0; 1291 for (int input_i = 0; input_i < ConfigData.Size; input_i++) 1292 { 1293 ImFontConfig& cfg = ConfigData[input_i]; 1294 ImFontTempBuildData& tmp = tmp_array[input_i]; 1295 1296 IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == this)); 1297 const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo); 1298 IM_ASSERT(font_offset >= 0); 1299 if (!stbtt_InitFont(&tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset)) 1300 return false; 1301 1302 // Count glyphs 1303 if (!cfg.GlyphRanges) 1304 cfg.GlyphRanges = GetGlyphRangesDefault(); 1305 for (const ImWchar* in_range = cfg.GlyphRanges; in_range[0] && in_range[1]; in_range += 2) 1306 { 1307 total_glyph_count += (in_range[1] - in_range[0]) + 1; 1308 total_glyph_range_count++; 1309 } 1310 } 1311 1312 // Start packing. We need a known width for the skyline algorithm. Using a cheap heuristic here to decide of width. User can override TexDesiredWidth if they wish. 1313 // After packing is done, width shouldn't matter much, but some API/GPU have texture size limitations and increasing width can decrease height. 1314 TexWidth = (TexDesiredWidth > 0) ? TexDesiredWidth : (total_glyph_count > 4000) ? 4096 : (total_glyph_count > 2000) ? 2048 : (total_glyph_count > 1000) ? 1024 : 512; 1315 TexHeight = 0; 1316 const int max_tex_height = 1024*32; 1317 stbtt_pack_context spc; 1318 stbtt_PackBegin(&spc, NULL, TexWidth, max_tex_height, 0, 1, NULL); 1319 1320 // Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values). 1321 ImVector<stbrp_rect> extra_rects; 1322 RenderCustomTexData(0, &extra_rects); 1323 stbtt_PackSetOversampling(&spc, 1, 1); 1324 stbrp_pack_rects((stbrp_context*)spc.pack_info, &extra_rects[0], extra_rects.Size); 1325 for (int i = 0; i < extra_rects.Size; i++) 1326 if (extra_rects[i].was_packed) 1327 TexHeight = ImMax(TexHeight, extra_rects[i].y + extra_rects[i].h); 1328 1329 // Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0) 1330 int buf_packedchars_n = 0, buf_rects_n = 0, buf_ranges_n = 0; 1331 stbtt_packedchar* buf_packedchars = (stbtt_packedchar*)ImGui::MemAlloc(total_glyph_count * sizeof(stbtt_packedchar)); 1332 stbrp_rect* buf_rects = (stbrp_rect*)ImGui::MemAlloc(total_glyph_count * sizeof(stbrp_rect)); 1333 stbtt_pack_range* buf_ranges = (stbtt_pack_range*)ImGui::MemAlloc(total_glyph_range_count * sizeof(stbtt_pack_range)); 1334 memset(buf_packedchars, 0, total_glyph_count * sizeof(stbtt_packedchar)); 1335 memset(buf_rects, 0, total_glyph_count * sizeof(stbrp_rect)); // Unnecessary but let's clear this for the sake of sanity. 1336 memset(buf_ranges, 0, total_glyph_range_count * sizeof(stbtt_pack_range)); 1337 1338 // First font pass: pack all glyphs (no rendering at this point, we are working with rectangles in an infinitely tall texture at this point) 1339 for (int input_i = 0; input_i < ConfigData.Size; input_i++) 1340 { 1341 ImFontConfig& cfg = ConfigData[input_i]; 1342 ImFontTempBuildData& tmp = tmp_array[input_i]; 1343 1344 // Setup ranges 1345 int glyph_count = 0; 1346 int glyph_ranges_count = 0; 1347 for (const ImWchar* in_range = cfg.GlyphRanges; in_range[0] && in_range[1]; in_range += 2) 1348 { 1349 glyph_count += (in_range[1] - in_range[0]) + 1; 1350 glyph_ranges_count++; 1351 } 1352 tmp.Ranges = buf_ranges + buf_ranges_n; 1353 tmp.RangesCount = glyph_ranges_count; 1354 buf_ranges_n += glyph_ranges_count; 1355 for (int i = 0; i < glyph_ranges_count; i++) 1356 { 1357 const ImWchar* in_range = &cfg.GlyphRanges[i * 2]; 1358 stbtt_pack_range& range = tmp.Ranges[i]; 1359 range.font_size = cfg.SizePixels; 1360 range.first_unicode_codepoint_in_range = in_range[0]; 1361 range.num_chars = (in_range[1] - in_range[0]) + 1; 1362 range.chardata_for_range = buf_packedchars + buf_packedchars_n; 1363 buf_packedchars_n += range.num_chars; 1364 } 1365 1366 // Pack 1367 tmp.Rects = buf_rects + buf_rects_n; 1368 buf_rects_n += glyph_count; 1369 stbtt_PackSetOversampling(&spc, cfg.OversampleH, cfg.OversampleV); 1370 int n = stbtt_PackFontRangesGatherRects(&spc, &tmp.FontInfo, tmp.Ranges, tmp.RangesCount, tmp.Rects); 1371 stbrp_pack_rects((stbrp_context*)spc.pack_info, tmp.Rects, n); 1372 1373 // Extend texture height 1374 for (int i = 0; i < n; i++) 1375 if (tmp.Rects[i].was_packed) 1376 TexHeight = ImMax(TexHeight, tmp.Rects[i].y + tmp.Rects[i].h); 1377 } 1378 IM_ASSERT(buf_rects_n == total_glyph_count); 1379 IM_ASSERT(buf_packedchars_n == total_glyph_count); 1380 IM_ASSERT(buf_ranges_n == total_glyph_range_count); 1381 1382 // Create texture 1383 TexHeight = ImUpperPowerOfTwo(TexHeight); 1384 TexPixelsAlpha8 = (unsigned char*)ImGui::MemAlloc(TexWidth * TexHeight); 1385 memset(TexPixelsAlpha8, 0, TexWidth * TexHeight); 1386 spc.pixels = TexPixelsAlpha8; 1387 spc.height = TexHeight; 1388 1389 // Second pass: render characters 1390 for (int input_i = 0; input_i < ConfigData.Size; input_i++) 1391 { 1392 ImFontConfig& cfg = ConfigData[input_i]; 1393 ImFontTempBuildData& tmp = tmp_array[input_i]; 1394 stbtt_PackSetOversampling(&spc, cfg.OversampleH, cfg.OversampleV); 1395 stbtt_PackFontRangesRenderIntoRects(&spc, &tmp.FontInfo, tmp.Ranges, tmp.RangesCount, tmp.Rects); 1396 tmp.Rects = NULL; 1397 } 1398 1399 // End packing 1400 stbtt_PackEnd(&spc); 1401 ImGui::MemFree(buf_rects); 1402 buf_rects = NULL; 1403 1404 // Third pass: setup ImFont and glyphs for runtime 1405 for (int input_i = 0; input_i < ConfigData.Size; input_i++) 1406 { 1407 ImFontConfig& cfg = ConfigData[input_i]; 1408 ImFontTempBuildData& tmp = tmp_array[input_i]; 1409 ImFont* dst_font = cfg.DstFont; // We can have multiple input fonts writing into a same destination font (when using MergeMode=true) 1410 1411 float font_scale = stbtt_ScaleForPixelHeight(&tmp.FontInfo, cfg.SizePixels); 1412 int unscaled_ascent, unscaled_descent, unscaled_line_gap; 1413 stbtt_GetFontVMetrics(&tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap); 1414 1415 float ascent = unscaled_ascent * font_scale; 1416 float descent = unscaled_descent * font_scale; 1417 if (!cfg.MergeMode) 1418 { 1419 dst_font->ContainerAtlas = this; 1420 dst_font->ConfigData = &cfg; 1421 dst_font->ConfigDataCount = 0; 1422 dst_font->FontSize = cfg.SizePixels; 1423 dst_font->Ascent = ascent; 1424 dst_font->Descent = descent; 1425 dst_font->Glyphs.resize(0); 1426 dst_font->MetricsTotalSurface = 0; 1427 } 1428 dst_font->ConfigDataCount++; 1429 float off_x = cfg.GlyphOffset.x; 1430 float off_y = cfg.GlyphOffset.y; 1431 1432 dst_font->FallbackGlyph = NULL; // Always clear fallback so FindGlyph can return NULL. It will be set again in BuildLookupTable() 1433 for (int i = 0; i < tmp.RangesCount; i++) 1434 { 1435 stbtt_pack_range& range = tmp.Ranges[i]; 1436 for (int char_idx = 0; char_idx < range.num_chars; char_idx += 1) 1437 { 1438 const stbtt_packedchar& pc = range.chardata_for_range[char_idx]; 1439 if (!pc.x0 && !pc.x1 && !pc.y0 && !pc.y1) 1440 continue; 1441 1442 const int codepoint = range.first_unicode_codepoint_in_range + char_idx; 1443 if (cfg.MergeMode && dst_font->FindGlyph((unsigned short)codepoint)) 1444 continue; 1445 1446 stbtt_aligned_quad q; 1447 float dummy_x = 0.0f, dummy_y = 0.0f; 1448 stbtt_GetPackedQuad(range.chardata_for_range, TexWidth, TexHeight, char_idx, &dummy_x, &dummy_y, &q, 0); 1449 1450 dst_font->Glyphs.resize(dst_font->Glyphs.Size + 1); 1451 ImFont::Glyph& glyph = dst_font->Glyphs.back(); 1452 glyph.Codepoint = (ImWchar)codepoint; 1453 glyph.X0 = q.x0 + off_x; glyph.Y0 = q.y0 + off_y; glyph.X1 = q.x1 + off_x; glyph.Y1 = q.y1 + off_y; 1454 glyph.U0 = q.s0; glyph.V0 = q.t0; glyph.U1 = q.s1; glyph.V1 = q.t1; 1455 glyph.Y0 += (float)(int)(dst_font->Ascent + 0.5f); 1456 glyph.Y1 += (float)(int)(dst_font->Ascent + 0.5f); 1457 glyph.XAdvance = (pc.xadvance + cfg.GlyphExtraSpacing.x); // Bake spacing into XAdvance 1458 if (cfg.PixelSnapH) 1459 glyph.XAdvance = (float)(int)(glyph.XAdvance + 0.5f); 1460 dst_font->MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * TexWidth + 1.99f) * (int)((glyph.V1 - glyph.V0) * TexHeight + 1.99f); // +1 to account for average padding, +0.99 to round 1461 } 1462 } 1463 cfg.DstFont->BuildLookupTable(); 1464 } 1465 1466 // Cleanup temporaries 1467 ImGui::MemFree(buf_packedchars); 1468 ImGui::MemFree(buf_ranges); 1469 ImGui::MemFree(tmp_array); 1470 1471 // Render into our custom data block 1472 RenderCustomTexData(1, &extra_rects); 1473 1474 return true; 1475 } 1476 1477 void ImFontAtlas::RenderCustomTexData(int pass, void* p_rects) 1478 { 1479 // A work of art lies ahead! (. = white layer, X = black layer, others are blank) 1480 // The white texels on the top left are the ones we'll use everywhere in ImGui to render filled shapes. 1481 const int TEX_DATA_W = 90; 1482 const int TEX_DATA_H = 27; 1483 const char texture_data[TEX_DATA_W*TEX_DATA_H+1] = 1484 { 1485 "..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX" 1486 "..- -X.....X- X.X - X.X -X.....X - X.....X" 1487 "--- -XXX.XXX- X...X - X...X -X....X - X....X" 1488 "X - X.X - X.....X - X.....X -X...X - X...X" 1489 "XX - X.X -X.......X- X.......X -X..X.X - X.X..X" 1490 "X.X - X.X -XXXX.XXXX- XXXX.XXXX -X.X X.X - X.X X.X" 1491 "X..X - X.X - X.X - X.X -XX X.X - X.X XX" 1492 "X...X - X.X - X.X - XX X.X XX - X.X - X.X " 1493 "X....X - X.X - X.X - X.X X.X X.X - X.X - X.X " 1494 "X.....X - X.X - X.X - X..X X.X X..X - X.X - X.X " 1495 "X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-XX X.X " 1496 "X.......X - X.X - X.X -X.....................X- X.X X.X-X.X X.X " 1497 "X........X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X..X-X..X.X " 1498 "X.........X -XXX.XXX- X.X - X..X X.X X..X - X...X-X...X " 1499 "X..........X-X.....X- X.X - X.X X.X X.X - X....X-X....X " 1500 "X......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X " 1501 "X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX " 1502 "X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------" 1503 "X.X X..X - -X.......X- X.......X - XX XX - " 1504 "XX X..X - - X.....X - X.....X - X.X X.X - " 1505 " X..X - X...X - X...X - X..X X..X - " 1506 " XX - X.X - X.X - X...XXXXXXXXXXXXX...X - " 1507 "------------ - X - X -X.....................X- " 1508 " ----------------------------------- X...XXXXXXXXXXXXX...X - " 1509 " - X..X X..X - " 1510 " - X.X X.X - " 1511 " - XX XX - " 1512 }; 1513 1514 ImVector<stbrp_rect>& rects = *(ImVector<stbrp_rect>*)p_rects; 1515 if (pass == 0) 1516 { 1517 // Request rectangles 1518 stbrp_rect r; 1519 memset(&r, 0, sizeof(r)); 1520 r.w = (TEX_DATA_W*2)+1; 1521 r.h = TEX_DATA_H+1; 1522 rects.push_back(r); 1523 } 1524 else if (pass == 1) 1525 { 1526 // Render/copy pixels 1527 const stbrp_rect& r = rects[0]; 1528 for (int y = 0, n = 0; y < TEX_DATA_H; y++) 1529 for (int x = 0; x < TEX_DATA_W; x++, n++) 1530 { 1531 const int offset0 = (int)(r.x + x) + (int)(r.y + y) * TexWidth; 1532 const int offset1 = offset0 + 1 + TEX_DATA_W; 1533 TexPixelsAlpha8[offset0] = texture_data[n] == '.' ? 0xFF : 0x00; 1534 TexPixelsAlpha8[offset1] = texture_data[n] == 'X' ? 0xFF : 0x00; 1535 } 1536 const ImVec2 tex_uv_scale(1.0f / TexWidth, 1.0f / TexHeight); 1537 TexUvWhitePixel = ImVec2((r.x + 0.5f) * tex_uv_scale.x, (r.y + 0.5f) * tex_uv_scale.y); 1538 1539 // Setup mouse cursors 1540 const ImVec2 cursor_datas[ImGuiMouseCursor_Count_][3] = 1541 { 1542 // Pos ........ Size ......... Offset ...... 1543 { ImVec2(0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow 1544 { ImVec2(13,0), ImVec2(7,16), ImVec2( 4, 8) }, // ImGuiMouseCursor_TextInput 1545 { ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_Move 1546 { ImVec2(21,0), ImVec2( 9,23), ImVec2( 5,11) }, // ImGuiMouseCursor_ResizeNS 1547 { ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 5) }, // ImGuiMouseCursor_ResizeEW 1548 { ImVec2(73,0), ImVec2(17,17), ImVec2( 9, 9) }, // ImGuiMouseCursor_ResizeNESW 1549 { ImVec2(55,0), ImVec2(17,17), ImVec2( 9, 9) }, // ImGuiMouseCursor_ResizeNWSE 1550 }; 1551 1552 for (int type = 0; type < ImGuiMouseCursor_Count_; type++) 1553 { 1554 ImGuiMouseCursorData& cursor_data = GImGui->MouseCursorData[type]; 1555 ImVec2 pos = cursor_datas[type][0] + ImVec2((float)r.x, (float)r.y); 1556 const ImVec2 size = cursor_datas[type][1]; 1557 cursor_data.Type = type; 1558 cursor_data.Size = size; 1559 cursor_data.HotOffset = cursor_datas[type][2]; 1560 cursor_data.TexUvMin[0] = (pos) * tex_uv_scale; 1561 cursor_data.TexUvMax[0] = (pos + size) * tex_uv_scale; 1562 pos.x += TEX_DATA_W+1; 1563 cursor_data.TexUvMin[1] = (pos) * tex_uv_scale; 1564 cursor_data.TexUvMax[1] = (pos + size) * tex_uv_scale; 1565 } 1566 } 1567 } 1568 1569 // Retrieve list of range (2 int per range, values are inclusive) 1570 const ImWchar* ImFontAtlas::GetGlyphRangesDefault() 1571 { 1572 static const ImWchar ranges[] = 1573 { 1574 0x0020, 0x00FF, // Basic Latin + Latin Supplement 1575 0, 1576 }; 1577 return &ranges[0]; 1578 } 1579 1580 const ImWchar* ImFontAtlas::GetGlyphRangesKorean() 1581 { 1582 static const ImWchar ranges[] = 1583 { 1584 0x0020, 0x00FF, // Basic Latin + Latin Supplement 1585 0x3131, 0x3163, // Korean alphabets 1586 0xAC00, 0xD79D, // Korean characters 1587 0, 1588 }; 1589 return &ranges[0]; 1590 } 1591 1592 const ImWchar* ImFontAtlas::GetGlyphRangesChinese() 1593 { 1594 static const ImWchar ranges[] = 1595 { 1596 0x0020, 0x00FF, // Basic Latin + Latin Supplement 1597 0x3000, 0x30FF, // Punctuations, Hiragana, Katakana 1598 0x31F0, 0x31FF, // Katakana Phonetic Extensions 1599 0xFF00, 0xFFEF, // Half-width characters 1600 0x4e00, 0x9FAF, // CJK Ideograms 1601 0, 1602 }; 1603 return &ranges[0]; 1604 } 1605 1606 const ImWchar* ImFontAtlas::GetGlyphRangesJapanese() 1607 { 1608 // Store the 1946 ideograms code points as successive offsets from the initial unicode codepoint 0x4E00. Each offset has an implicit +1. 1609 // This encoding helps us reduce the source code size. 1610 static const short offsets_from_0x4E00[] = 1611 { 1612 -1,0,1,3,0,0,0,0,1,0,5,1,1,0,7,4,6,10,0,1,9,9,7,1,3,19,1,10,7,1,0,1,0,5,1,0,6,4,2,6,0,0,12,6,8,0,3,5,0,1,0,9,0,0,8,1,1,3,4,5,13,0,0,8,2,17, 1613 4,3,1,1,9,6,0,0,0,2,1,3,2,22,1,9,11,1,13,1,3,12,0,5,9,2,0,6,12,5,3,12,4,1,2,16,1,1,4,6,5,3,0,6,13,15,5,12,8,14,0,0,6,15,3,6,0,18,8,1,6,14,1, 1614 5,4,12,24,3,13,12,10,24,0,0,0,1,0,1,1,2,9,10,2,2,0,0,3,3,1,0,3,8,0,3,2,4,4,1,6,11,10,14,6,15,3,4,15,1,0,0,5,2,2,0,0,1,6,5,5,6,0,3,6,5,0,0,1,0, 1615 11,2,2,8,4,7,0,10,0,1,2,17,19,3,0,2,5,0,6,2,4,4,6,1,1,11,2,0,3,1,2,1,2,10,7,6,3,16,0,8,24,0,0,3,1,1,3,0,1,6,0,0,0,2,0,1,5,15,0,1,0,0,2,11,19, 1616 1,4,19,7,6,5,1,0,0,0,0,5,1,0,1,9,0,0,5,0,2,0,1,0,3,0,11,3,0,2,0,0,0,0,0,9,3,6,4,12,0,14,0,0,29,10,8,0,14,37,13,0,31,16,19,0,8,30,1,20,8,3,48, 1617 21,1,0,12,0,10,44,34,42,54,11,18,82,0,2,1,2,12,1,0,6,2,17,2,12,7,0,7,17,4,2,6,24,23,8,23,39,2,16,23,1,0,5,1,2,15,14,5,6,2,11,0,8,6,2,2,2,14, 1618 20,4,15,3,4,11,10,10,2,5,2,1,30,2,1,0,0,22,5,5,0,3,1,5,4,1,0,0,2,2,21,1,5,1,2,16,2,1,3,4,0,8,4,0,0,5,14,11,2,16,1,13,1,7,0,22,15,3,1,22,7,14, 1619 22,19,11,24,18,46,10,20,64,45,3,2,0,4,5,0,1,4,25,1,0,0,2,10,0,0,0,1,0,1,2,0,0,9,1,2,0,0,0,2,5,2,1,1,5,5,8,1,1,1,5,1,4,9,1,3,0,1,0,1,1,2,0,0, 1620 2,0,1,8,22,8,1,0,0,0,0,4,2,1,0,9,8,5,0,9,1,30,24,2,6,4,39,0,14,5,16,6,26,179,0,2,1,1,0,0,0,5,2,9,6,0,2,5,16,7,5,1,1,0,2,4,4,7,15,13,14,0,0, 1621 3,0,1,0,0,0,2,1,6,4,5,1,4,9,0,3,1,8,0,0,10,5,0,43,0,2,6,8,4,0,2,0,0,9,6,0,9,3,1,6,20,14,6,1,4,0,7,2,3,0,2,0,5,0,3,1,0,3,9,7,0,3,4,0,4,9,1,6,0, 1622 9,0,0,2,3,10,9,28,3,6,2,4,1,2,32,4,1,18,2,0,3,1,5,30,10,0,2,2,2,0,7,9,8,11,10,11,7,2,13,7,5,10,0,3,40,2,0,1,6,12,0,4,5,1,5,11,11,21,4,8,3,7, 1623 8,8,33,5,23,0,0,19,8,8,2,3,0,6,1,1,1,5,1,27,4,2,5,0,3,5,6,3,1,0,3,1,12,5,3,3,2,0,7,7,2,1,0,4,0,1,1,2,0,10,10,6,2,5,9,7,5,15,15,21,6,11,5,20, 1624 4,3,5,5,2,5,0,2,1,0,1,7,28,0,9,0,5,12,5,5,18,30,0,12,3,3,21,16,25,32,9,3,14,11,24,5,66,9,1,2,0,5,9,1,5,1,8,0,8,3,3,0,1,15,1,4,8,1,2,7,0,7,2, 1625 8,3,7,5,3,7,10,2,1,0,0,2,25,0,6,4,0,10,0,4,2,4,1,12,5,38,4,0,4,1,10,5,9,4,0,14,4,2,5,18,20,21,1,3,0,5,0,7,0,3,7,1,3,1,1,8,1,0,0,0,3,2,5,2,11, 1626 6,0,13,1,3,9,1,12,0,16,6,2,1,0,2,1,12,6,13,11,2,0,28,1,7,8,14,13,8,13,0,2,0,5,4,8,10,2,37,42,19,6,6,7,4,14,11,18,14,80,7,6,0,4,72,12,36,27, 1627 7,7,0,14,17,19,164,27,0,5,10,7,3,13,6,14,0,2,2,5,3,0,6,13,0,0,10,29,0,4,0,3,13,0,3,1,6,51,1,5,28,2,0,8,0,20,2,4,0,25,2,10,13,10,0,16,4,0,1,0, 1628 2,1,7,0,1,8,11,0,0,1,2,7,2,23,11,6,6,4,16,2,2,2,0,22,9,3,3,5,2,0,15,16,21,2,9,20,15,15,5,3,9,1,0,0,1,7,7,5,4,2,2,2,38,24,14,0,0,15,5,6,24,14, 1629 5,5,11,0,21,12,0,3,8,4,11,1,8,0,11,27,7,2,4,9,21,59,0,1,39,3,60,62,3,0,12,11,0,3,30,11,0,13,88,4,15,5,28,13,1,4,48,17,17,4,28,32,46,0,16,0, 1630 18,11,1,8,6,38,11,2,6,11,38,2,0,45,3,11,2,7,8,4,30,14,17,2,1,1,65,18,12,16,4,2,45,123,12,56,33,1,4,3,4,7,0,0,0,3,2,0,16,4,2,4,2,0,7,4,5,2,26, 1631 2,25,6,11,6,1,16,2,6,17,77,15,3,35,0,1,0,5,1,0,38,16,6,3,12,3,3,3,0,9,3,1,3,5,2,9,0,18,0,25,1,3,32,1,72,46,6,2,7,1,3,14,17,0,28,1,40,13,0,20, 1632 15,40,6,38,24,12,43,1,1,9,0,12,6,0,6,2,4,19,3,7,1,48,0,9,5,0,5,6,9,6,10,15,2,11,19,3,9,2,0,1,10,1,27,8,1,3,6,1,14,0,26,0,27,16,3,4,9,6,2,23, 1633 9,10,5,25,2,1,6,1,1,48,15,9,15,14,3,4,26,60,29,13,37,21,1,6,4,0,2,11,22,23,16,16,2,2,1,3,0,5,1,6,4,0,0,4,0,0,8,3,0,2,5,0,7,1,7,3,13,2,4,10, 1634 3,0,2,31,0,18,3,0,12,10,4,1,0,7,5,7,0,5,4,12,2,22,10,4,2,15,2,8,9,0,23,2,197,51,3,1,1,4,13,4,3,21,4,19,3,10,5,40,0,4,1,1,10,4,1,27,34,7,21, 1635 2,17,2,9,6,4,2,3,0,4,2,7,8,2,5,1,15,21,3,4,4,2,2,17,22,1,5,22,4,26,7,0,32,1,11,42,15,4,1,2,5,0,19,3,1,8,6,0,10,1,9,2,13,30,8,2,24,17,19,1,4, 1636 4,25,13,0,10,16,11,39,18,8,5,30,82,1,6,8,18,77,11,13,20,75,11,112,78,33,3,0,0,60,17,84,9,1,1,12,30,10,49,5,32,158,178,5,5,6,3,3,1,3,1,4,7,6, 1637 19,31,21,0,2,9,5,6,27,4,9,8,1,76,18,12,1,4,0,3,3,6,3,12,2,8,30,16,2,25,1,5,5,4,3,0,6,10,2,3,1,0,5,1,19,3,0,8,1,5,2,6,0,0,0,19,1,2,0,5,1,2,5, 1638 1,3,7,0,4,12,7,3,10,22,0,9,5,1,0,2,20,1,1,3,23,30,3,9,9,1,4,191,14,3,15,6,8,50,0,1,0,0,4,0,0,1,0,2,4,2,0,2,3,0,2,0,2,2,8,7,0,1,1,1,3,3,17,11, 1639 91,1,9,3,2,13,4,24,15,41,3,13,3,1,20,4,125,29,30,1,0,4,12,2,21,4,5,5,19,11,0,13,11,86,2,18,0,7,1,8,8,2,2,22,1,2,6,5,2,0,1,2,8,0,2,0,5,2,1,0, 1640 2,10,2,0,5,9,2,1,2,0,1,0,4,0,0,10,2,5,3,0,6,1,0,1,4,4,33,3,13,17,3,18,6,4,7,1,5,78,0,4,1,13,7,1,8,1,0,35,27,15,3,0,0,0,1,11,5,41,38,15,22,6, 1641 14,14,2,1,11,6,20,63,5,8,27,7,11,2,2,40,58,23,50,54,56,293,8,8,1,5,1,14,0,1,12,37,89,8,8,8,2,10,6,0,0,0,4,5,2,1,0,1,1,2,7,0,3,3,0,4,6,0,3,2, 1642 19,3,8,0,0,0,4,4,16,0,4,1,5,1,3,0,3,4,6,2,17,10,10,31,6,4,3,6,10,126,7,3,2,2,0,9,0,0,5,20,13,0,15,0,6,0,2,5,8,64,50,3,2,12,2,9,0,0,11,8,20, 1643 109,2,18,23,0,0,9,61,3,0,28,41,77,27,19,17,81,5,2,14,5,83,57,252,14,154,263,14,20,8,13,6,57,39,38, 1644 }; 1645 static ImWchar base_ranges[] = 1646 { 1647 0x0020, 0x00FF, // Basic Latin + Latin Supplement 1648 0x3000, 0x30FF, // Punctuations, Hiragana, Katakana 1649 0x31F0, 0x31FF, // Katakana Phonetic Extensions 1650 0xFF00, 0xFFEF, // Half-width characters 1651 }; 1652 static bool full_ranges_unpacked = false; 1653 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(offsets_from_0x4E00)*2 + 1]; 1654 if (!full_ranges_unpacked) 1655 { 1656 // Unpack 1657 int codepoint = 0x4e00; 1658 memcpy(full_ranges, base_ranges, sizeof(base_ranges)); 1659 ImWchar* dst = full_ranges + IM_ARRAYSIZE(base_ranges);; 1660 for (int n = 0; n < IM_ARRAYSIZE(offsets_from_0x4E00); n++, dst += 2) 1661 dst[0] = dst[1] = (ImWchar)(codepoint += (offsets_from_0x4E00[n] + 1)); 1662 dst[0] = 0; 1663 full_ranges_unpacked = true; 1664 } 1665 return &full_ranges[0]; 1666 } 1667 1668 const ImWchar* ImFontAtlas::GetGlyphRangesCyrillic() 1669 { 1670 static const ImWchar ranges[] = 1671 { 1672 0x0020, 0x00FF, // Basic Latin + Latin Supplement 1673 0x0400, 0x052F, // Cyrillic + Cyrillic Supplement 1674 0x2DE0, 0x2DFF, // Cyrillic Extended-A 1675 0xA640, 0xA69F, // Cyrillic Extended-B 1676 0, 1677 }; 1678 return &ranges[0]; 1679 } 1680 1681 const ImWchar* ImFontAtlas::GetGlyphRangesThai() 1682 { 1683 static const ImWchar ranges[] = 1684 { 1685 0x0020, 0x00FF, // Basic Latin 1686 0x0E00, 0x0E7F, // Thai 1687 0, 1688 }; 1689 return &ranges[0]; 1690 } 1691 1692 //----------------------------------------------------------------------------- 1693 // ImFont 1694 //----------------------------------------------------------------------------- 1695 1696 ImFont::ImFont() 1697 { 1698 Scale = 1.0f; 1699 FallbackChar = (ImWchar)'?'; 1700 Clear(); 1701 } 1702 1703 ImFont::~ImFont() 1704 { 1705 // Invalidate active font so that the user gets a clear crash instead of a dangling pointer. 1706 // If you want to delete fonts you need to do it between Render() and NewFrame(). 1707 // FIXME-CLEANUP 1708 /* 1709 ImGuiContext& g = *GImGui; 1710 if (g.Font == this) 1711 g.Font = NULL; 1712 */ 1713 Clear(); 1714 } 1715 1716 void ImFont::Clear() 1717 { 1718 FontSize = 0.0f; 1719 DisplayOffset = ImVec2(0.0f, 1.0f); 1720 Glyphs.clear(); 1721 IndexXAdvance.clear(); 1722 IndexLookup.clear(); 1723 FallbackGlyph = NULL; 1724 FallbackXAdvance = 0.0f; 1725 ConfigDataCount = 0; 1726 ConfigData = NULL; 1727 ContainerAtlas = NULL; 1728 Ascent = Descent = 0.0f; 1729 MetricsTotalSurface = 0; 1730 } 1731 1732 void ImFont::BuildLookupTable() 1733 { 1734 int max_codepoint = 0; 1735 for (int i = 0; i != Glyphs.Size; i++) 1736 max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint); 1737 1738 IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved 1739 IndexXAdvance.clear(); 1740 IndexLookup.clear(); 1741 GrowIndex(max_codepoint + 1); 1742 for (int i = 0; i < Glyphs.Size; i++) 1743 { 1744 int codepoint = (int)Glyphs[i].Codepoint; 1745 IndexXAdvance[codepoint] = Glyphs[i].XAdvance; 1746 IndexLookup[codepoint] = (unsigned short)i; 1747 } 1748 1749 // Create a glyph to handle TAB 1750 // FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?) 1751 if (FindGlyph((unsigned short)' ')) 1752 { 1753 if (Glyphs.back().Codepoint != '\t') // So we can call this function multiple times 1754 Glyphs.resize(Glyphs.Size + 1); 1755 ImFont::Glyph& tab_glyph = Glyphs.back(); 1756 tab_glyph = *FindGlyph((unsigned short)' '); 1757 tab_glyph.Codepoint = '\t'; 1758 tab_glyph.XAdvance *= 4; 1759 IndexXAdvance[(int)tab_glyph.Codepoint] = (float)tab_glyph.XAdvance; 1760 IndexLookup[(int)tab_glyph.Codepoint] = (unsigned short)(Glyphs.Size-1); 1761 } 1762 1763 FallbackGlyph = NULL; 1764 FallbackGlyph = FindGlyph(FallbackChar); 1765 FallbackXAdvance = FallbackGlyph ? FallbackGlyph->XAdvance : 0.0f; 1766 for (int i = 0; i < max_codepoint + 1; i++) 1767 if (IndexXAdvance[i] < 0.0f) 1768 IndexXAdvance[i] = FallbackXAdvance; 1769 } 1770 1771 void ImFont::SetFallbackChar(ImWchar c) 1772 { 1773 FallbackChar = c; 1774 BuildLookupTable(); 1775 } 1776 1777 void ImFont::GrowIndex(int new_size) 1778 { 1779 IM_ASSERT(IndexXAdvance.Size == IndexLookup.Size); 1780 int old_size = IndexLookup.Size; 1781 if (new_size <= old_size) 1782 return; 1783 IndexXAdvance.resize(new_size); 1784 IndexLookup.resize(new_size); 1785 for (int i = old_size; i < new_size; i++) 1786 { 1787 IndexXAdvance[i] = -1.0f; 1788 IndexLookup[i] = (unsigned short)-1; 1789 } 1790 } 1791 1792 void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst) 1793 { 1794 IM_ASSERT(IndexLookup.Size > 0); // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function. 1795 int index_size = IndexLookup.Size; 1796 1797 if (dst < index_size && IndexLookup.Data[dst] == (unsigned short)-1 && !overwrite_dst) // 'dst' already exists 1798 return; 1799 if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op 1800 return; 1801 1802 GrowIndex(dst + 1); 1803 IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (unsigned short)-1; 1804 IndexXAdvance[dst] = (src < index_size) ? IndexXAdvance.Data[src] : 1.0f; 1805 } 1806 1807 const ImFont::Glyph* ImFont::FindGlyph(unsigned short c) const 1808 { 1809 if (c < IndexLookup.Size) 1810 { 1811 const unsigned short i = IndexLookup[c]; 1812 if (i != (unsigned short)-1) 1813 return &Glyphs.Data[i]; 1814 } 1815 return FallbackGlyph; 1816 } 1817 1818 const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const 1819 { 1820 // Simple word-wrapping for English, not full-featured. Please submit failing cases! 1821 // FIXME: Much possible improvements (don't cut things like "word !", "word!!!" but cut within "word,,,,", more sensible support for punctuations, support for Unicode punctuations, etc.) 1822 1823 // For references, possible wrap point marked with ^ 1824 // "aaa bbb, ccc,ddd. eee fff. ggg!" 1825 // ^ ^ ^ ^ ^__ ^ ^ 1826 1827 // List of hardcoded separators: .,;!?'" 1828 1829 // Skip extra blanks after a line returns (that includes not counting them in width computation) 1830 // e.g. "Hello world" --> "Hello" "World" 1831 1832 // Cut words that cannot possibly fit within one line. 1833 // e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish" 1834 1835 float line_width = 0.0f; 1836 float word_width = 0.0f; 1837 float blank_width = 0.0f; 1838 1839 const char* word_end = text; 1840 const char* prev_word_end = NULL; 1841 bool inside_word = true; 1842 1843 const char* s = text; 1844 while (s < text_end) 1845 { 1846 unsigned int c = (unsigned int)*s; 1847 const char* next_s; 1848 if (c < 0x80) 1849 next_s = s + 1; 1850 else 1851 next_s = s + ImTextCharFromUtf8(&c, s, text_end); 1852 if (c == 0) 1853 break; 1854 1855 if (c < 32) 1856 { 1857 if (c == '\n') 1858 { 1859 line_width = word_width = blank_width = 0.0f; 1860 inside_word = true; 1861 s = next_s; 1862 continue; 1863 } 1864 if (c == '\r') 1865 { 1866 s = next_s; 1867 continue; 1868 } 1869 } 1870 1871 const float char_width = ((int)c < IndexXAdvance.Size ? IndexXAdvance[(int)c] : FallbackXAdvance) * scale; 1872 if (ImCharIsSpace(c)) 1873 { 1874 if (inside_word) 1875 { 1876 line_width += blank_width; 1877 blank_width = 0.0f; 1878 word_end = s; 1879 } 1880 blank_width += char_width; 1881 inside_word = false; 1882 } 1883 else 1884 { 1885 word_width += char_width; 1886 if (inside_word) 1887 { 1888 word_end = next_s; 1889 } 1890 else 1891 { 1892 prev_word_end = word_end; 1893 line_width += word_width + blank_width; 1894 word_width = blank_width = 0.0f; 1895 } 1896 1897 // Allow wrapping after punctuation. 1898 inside_word = !(c == '.' || c == ',' || c == ';' || c == '!' || c == '?' || c == '\"'); 1899 } 1900 1901 // We ignore blank width at the end of the line (they can be skipped) 1902 if (line_width + word_width >= wrap_width) 1903 { 1904 // Words that cannot possibly fit within an entire line will be cut anywhere. 1905 if (word_width < wrap_width) 1906 s = prev_word_end ? prev_word_end : word_end; 1907 break; 1908 } 1909 1910 s = next_s; 1911 } 1912 1913 return s; 1914 } 1915 1916 ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining) const 1917 { 1918 if (!text_end) 1919 text_end = text_begin + strlen(text_begin); // FIXME-OPT: Need to avoid this. 1920 1921 const float line_height = size; 1922 const float scale = size / FontSize; 1923 1924 ImVec2 text_size = ImVec2(0,0); 1925 float line_width = 0.0f; 1926 1927 const bool word_wrap_enabled = (wrap_width > 0.0f); 1928 const char* word_wrap_eol = NULL; 1929 1930 const char* s = text_begin; 1931 while (s < text_end) 1932 { 1933 if (word_wrap_enabled) 1934 { 1935 // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature. 1936 if (!word_wrap_eol) 1937 { 1938 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width); 1939 if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity. 1940 word_wrap_eol++; // +1 may not be a character start point in UTF-8 but it's ok because we use s >= word_wrap_eol below 1941 } 1942 1943 if (s >= word_wrap_eol) 1944 { 1945 if (text_size.x < line_width) 1946 text_size.x = line_width; 1947 text_size.y += line_height; 1948 line_width = 0.0f; 1949 word_wrap_eol = NULL; 1950 1951 // Wrapping skips upcoming blanks 1952 while (s < text_end) 1953 { 1954 const char c = *s; 1955 if (ImCharIsSpace(c)) { s++; } else if (c == '\n') { s++; break; } else { break; } 1956 } 1957 continue; 1958 } 1959 } 1960 1961 // Decode and advance source 1962 const char* prev_s = s; 1963 unsigned int c = (unsigned int)*s; 1964 if (c < 0x80) 1965 { 1966 s += 1; 1967 } 1968 else 1969 { 1970 s += ImTextCharFromUtf8(&c, s, text_end); 1971 if (c == 0) // Malformed UTF-8? 1972 break; 1973 } 1974 1975 if (c < 32) 1976 { 1977 if (c == '\n') 1978 { 1979 text_size.x = ImMax(text_size.x, line_width); 1980 text_size.y += line_height; 1981 line_width = 0.0f; 1982 continue; 1983 } 1984 if (c == '\r') 1985 continue; 1986 } 1987 1988 const float char_width = ((int)c < IndexXAdvance.Size ? IndexXAdvance[(int)c] : FallbackXAdvance) * scale; 1989 if (line_width + char_width >= max_width) 1990 { 1991 s = prev_s; 1992 break; 1993 } 1994 1995 line_width += char_width; 1996 } 1997 1998 if (text_size.x < line_width) 1999 text_size.x = line_width; 2000 2001 if (line_width > 0 || text_size.y == 0.0f) 2002 text_size.y += line_height; 2003 2004 if (remaining) 2005 *remaining = s; 2006 2007 return text_size; 2008 } 2009 2010 void ImFont::RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, unsigned short c) const 2011 { 2012 if (c == ' ' || c == '\t' || c == '\n' || c == '\r') // Match behavior of RenderText(), those 4 codepoints are hard-coded. 2013 return; 2014 if (const Glyph* glyph = FindGlyph(c)) 2015 { 2016 float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f; 2017 pos.x = (float)(int)pos.x + DisplayOffset.x; 2018 pos.y = (float)(int)pos.y + DisplayOffset.y; 2019 ImVec2 pos_tl(pos.x + glyph->X0 * scale, pos.y + glyph->Y0 * scale); 2020 ImVec2 pos_br(pos.x + glyph->X1 * scale, pos.y + glyph->Y1 * scale); 2021 draw_list->PrimReserve(6, 4); 2022 draw_list->PrimRectUV(pos_tl, pos_br, ImVec2(glyph->U0, glyph->V0), ImVec2(glyph->U1, glyph->V1), col); 2023 } 2024 } 2025 2026 void ImFont::RenderText(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width, bool cpu_fine_clip) const 2027 { 2028 if (!text_end) 2029 text_end = text_begin + strlen(text_begin); // ImGui functions generally already provides a valid text_end, so this is merely to handle direct calls. 2030 2031 // Align to be pixel perfect 2032 pos.x = (float)(int)pos.x + DisplayOffset.x; 2033 pos.y = (float)(int)pos.y + DisplayOffset.y; 2034 float x = pos.x; 2035 float y = pos.y; 2036 if (y > clip_rect.w) 2037 return; 2038 2039 const float scale = size / FontSize; 2040 const float line_height = FontSize * scale; 2041 const bool word_wrap_enabled = (wrap_width > 0.0f); 2042 const char* word_wrap_eol = NULL; 2043 2044 // Skip non-visible lines 2045 const char* s = text_begin; 2046 if (!word_wrap_enabled && y + line_height < clip_rect.y) 2047 while (s < text_end && *s != '\n') // Fast-forward to next line 2048 s++; 2049 2050 // Reserve vertices for remaining worse case (over-reserving is useful and easily amortized) 2051 const int vtx_count_max = (int)(text_end - s) * 4; 2052 const int idx_count_max = (int)(text_end - s) * 6; 2053 const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max; 2054 draw_list->PrimReserve(idx_count_max, vtx_count_max); 2055 2056 ImDrawVert* vtx_write = draw_list->_VtxWritePtr; 2057 ImDrawIdx* idx_write = draw_list->_IdxWritePtr; 2058 unsigned int vtx_current_idx = draw_list->_VtxCurrentIdx; 2059 2060 while (s < text_end) 2061 { 2062 if (word_wrap_enabled) 2063 { 2064 // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature. 2065 if (!word_wrap_eol) 2066 { 2067 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - pos.x)); 2068 if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity. 2069 word_wrap_eol++; // +1 may not be a character start point in UTF-8 but it's ok because we use s >= word_wrap_eol below 2070 } 2071 2072 if (s >= word_wrap_eol) 2073 { 2074 x = pos.x; 2075 y += line_height; 2076 word_wrap_eol = NULL; 2077 2078 // Wrapping skips upcoming blanks 2079 while (s < text_end) 2080 { 2081 const char c = *s; 2082 if (ImCharIsSpace(c)) { s++; } else if (c == '\n') { s++; break; } else { break; } 2083 } 2084 continue; 2085 } 2086 } 2087 2088 // Decode and advance source 2089 unsigned int c = (unsigned int)*s; 2090 if (c < 0x80) 2091 { 2092 s += 1; 2093 } 2094 else 2095 { 2096 s += ImTextCharFromUtf8(&c, s, text_end); 2097 if (c == 0) // Malformed UTF-8? 2098 break; 2099 } 2100 2101 if (c < 32) 2102 { 2103 if (c == '\n') 2104 { 2105 x = pos.x; 2106 y += line_height; 2107 2108 if (y > clip_rect.w) 2109 break; 2110 if (!word_wrap_enabled && y + line_height < clip_rect.y) 2111 while (s < text_end && *s != '\n') // Fast-forward to next line 2112 s++; 2113 continue; 2114 } 2115 if (c == '\r') 2116 continue; 2117 } 2118 2119 float char_width = 0.0f; 2120 if (const Glyph* glyph = FindGlyph((unsigned short)c)) 2121 { 2122 char_width = glyph->XAdvance * scale; 2123 2124 // Arbitrarily assume that both space and tabs are empty glyphs as an optimization 2125 if (c != ' ' && c != '\t') 2126 { 2127 // We don't do a second finer clipping test on the Y axis as we've already skipped anything before clip_rect.y and exit once we pass clip_rect.w 2128 float x1 = x + glyph->X0 * scale; 2129 float x2 = x + glyph->X1 * scale; 2130 float y1 = y + glyph->Y0 * scale; 2131 float y2 = y + glyph->Y1 * scale; 2132 if (x1 <= clip_rect.z && x2 >= clip_rect.x) 2133 { 2134 // Render a character 2135 float u1 = glyph->U0; 2136 float v1 = glyph->V0; 2137 float u2 = glyph->U1; 2138 float v2 = glyph->V1; 2139 2140 // CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads. 2141 if (cpu_fine_clip) 2142 { 2143 if (x1 < clip_rect.x) 2144 { 2145 u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1); 2146 x1 = clip_rect.x; 2147 } 2148 if (y1 < clip_rect.y) 2149 { 2150 v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1); 2151 y1 = clip_rect.y; 2152 } 2153 if (x2 > clip_rect.z) 2154 { 2155 u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1); 2156 x2 = clip_rect.z; 2157 } 2158 if (y2 > clip_rect.w) 2159 { 2160 v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1); 2161 y2 = clip_rect.w; 2162 } 2163 if (y1 >= y2) 2164 { 2165 x += char_width; 2166 continue; 2167 } 2168 } 2169 2170 // We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug build. 2171 // Inlined here: 2172 { 2173 idx_write[0] = (ImDrawIdx)(vtx_current_idx); idx_write[1] = (ImDrawIdx)(vtx_current_idx+1); idx_write[2] = (ImDrawIdx)(vtx_current_idx+2); 2174 idx_write[3] = (ImDrawIdx)(vtx_current_idx); idx_write[4] = (ImDrawIdx)(vtx_current_idx+2); idx_write[5] = (ImDrawIdx)(vtx_current_idx+3); 2175 vtx_write[0].pos.x = x1; vtx_write[0].pos.y = y1; vtx_write[0].col = col; vtx_write[0].uv.x = u1; vtx_write[0].uv.y = v1; 2176 vtx_write[1].pos.x = x2; vtx_write[1].pos.y = y1; vtx_write[1].col = col; vtx_write[1].uv.x = u2; vtx_write[1].uv.y = v1; 2177 vtx_write[2].pos.x = x2; vtx_write[2].pos.y = y2; vtx_write[2].col = col; vtx_write[2].uv.x = u2; vtx_write[2].uv.y = v2; 2178 vtx_write[3].pos.x = x1; vtx_write[3].pos.y = y2; vtx_write[3].col = col; vtx_write[3].uv.x = u1; vtx_write[3].uv.y = v2; 2179 vtx_write += 4; 2180 vtx_current_idx += 4; 2181 idx_write += 6; 2182 } 2183 } 2184 } 2185 } 2186 2187 x += char_width; 2188 } 2189 2190 // Give back unused vertices 2191 draw_list->VtxBuffer.resize((int)(vtx_write - draw_list->VtxBuffer.Data)); 2192 draw_list->IdxBuffer.resize((int)(idx_write - draw_list->IdxBuffer.Data)); 2193 draw_list->CmdBuffer[draw_list->CmdBuffer.Size-1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size); 2194 draw_list->_VtxWritePtr = vtx_write; 2195 draw_list->_IdxWritePtr = idx_write; 2196 draw_list->_VtxCurrentIdx = (unsigned int)draw_list->VtxBuffer.Size; 2197 } 2198 2199 //----------------------------------------------------------------------------- 2200 // DEFAULT FONT DATA 2201 //----------------------------------------------------------------------------- 2202 // Compressed with stb_compress() then converted to a C array. 2203 // Use the program in extra_fonts/binary_to_compressed_c.cpp to create the array from a TTF file. 2204 // Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h 2205 //----------------------------------------------------------------------------- 2206 2207 static unsigned int stb_decompress_length(unsigned char *input) 2208 { 2209 return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11]; 2210 } 2211 2212 static unsigned char *stb__barrier, *stb__barrier2, *stb__barrier3, *stb__barrier4; 2213 static unsigned char *stb__dout; 2214 static void stb__match(unsigned char *data, unsigned int length) 2215 { 2216 // INVERSE of memmove... write each byte before copying the next... 2217 IM_ASSERT (stb__dout + length <= stb__barrier); 2218 if (stb__dout + length > stb__barrier) { stb__dout += length; return; } 2219 if (data < stb__barrier4) { stb__dout = stb__barrier+1; return; } 2220 while (length--) *stb__dout++ = *data++; 2221 } 2222 2223 static void stb__lit(unsigned char *data, unsigned int length) 2224 { 2225 IM_ASSERT (stb__dout + length <= stb__barrier); 2226 if (stb__dout + length > stb__barrier) { stb__dout += length; return; } 2227 if (data < stb__barrier2) { stb__dout = stb__barrier+1; return; } 2228 memcpy(stb__dout, data, length); 2229 stb__dout += length; 2230 } 2231 2232 #define stb__in2(x) ((i[x] << 8) + i[(x)+1]) 2233 #define stb__in3(x) ((i[x] << 16) + stb__in2((x)+1)) 2234 #define stb__in4(x) ((i[x] << 24) + stb__in3((x)+1)) 2235 2236 static unsigned char *stb_decompress_token(unsigned char *i) 2237 { 2238 if (*i >= 0x20) { // use fewer if's for cases that expand small 2239 if (*i >= 0x80) stb__match(stb__dout-i[1]-1, i[0] - 0x80 + 1), i += 2; 2240 else if (*i >= 0x40) stb__match(stb__dout-(stb__in2(0) - 0x4000 + 1), i[2]+1), i += 3; 2241 else /* *i >= 0x20 */ stb__lit(i+1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1); 2242 } else { // more ifs for cases that expand large, since overhead is amortized 2243 if (*i >= 0x18) stb__match(stb__dout-(stb__in3(0) - 0x180000 + 1), i[3]+1), i += 4; 2244 else if (*i >= 0x10) stb__match(stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5; 2245 else if (*i >= 0x08) stb__lit(i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1); 2246 else if (*i == 0x07) stb__lit(i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1); 2247 else if (*i == 0x06) stb__match(stb__dout-(stb__in3(1)+1), i[4]+1), i += 5; 2248 else if (*i == 0x04) stb__match(stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6; 2249 } 2250 return i; 2251 } 2252 2253 static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen) 2254 { 2255 const unsigned long ADLER_MOD = 65521; 2256 unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16; 2257 unsigned long blocklen, i; 2258 2259 blocklen = buflen % 5552; 2260 while (buflen) { 2261 for (i=0; i + 7 < blocklen; i += 8) { 2262 s1 += buffer[0], s2 += s1; 2263 s1 += buffer[1], s2 += s1; 2264 s1 += buffer[2], s2 += s1; 2265 s1 += buffer[3], s2 += s1; 2266 s1 += buffer[4], s2 += s1; 2267 s1 += buffer[5], s2 += s1; 2268 s1 += buffer[6], s2 += s1; 2269 s1 += buffer[7], s2 += s1; 2270 2271 buffer += 8; 2272 } 2273 2274 for (; i < blocklen; ++i) 2275 s1 += *buffer++, s2 += s1; 2276 2277 s1 %= ADLER_MOD, s2 %= ADLER_MOD; 2278 buflen -= blocklen; 2279 blocklen = 5552; 2280 } 2281 return (unsigned int)(s2 << 16) + (unsigned int)s1; 2282 } 2283 2284 static unsigned int stb_decompress(unsigned char *output, unsigned char *i, unsigned int length) 2285 { 2286 unsigned int olen; 2287 if (stb__in4(0) != 0x57bC0000) return 0; 2288 if (stb__in4(4) != 0) return 0; // error! stream is > 4GB 2289 olen = stb_decompress_length(i); 2290 stb__barrier2 = i; 2291 stb__barrier3 = i+length; 2292 stb__barrier = output + olen; 2293 stb__barrier4 = output; 2294 i += 16; 2295 2296 stb__dout = output; 2297 for (;;) { 2298 unsigned char *old_i = i; 2299 i = stb_decompress_token(i); 2300 if (i == old_i) { 2301 if (*i == 0x05 && i[1] == 0xfa) { 2302 IM_ASSERT(stb__dout == output + olen); 2303 if (stb__dout != output + olen) return 0; 2304 if (stb_adler32(1, output, olen) != (unsigned int) stb__in4(2)) 2305 return 0; 2306 return olen; 2307 } else { 2308 IM_ASSERT(0); /* NOTREACHED */ 2309 return 0; 2310 } 2311 } 2312 IM_ASSERT(stb__dout <= output + olen); 2313 if (stb__dout > output + olen) 2314 return 0; 2315 } 2316 } 2317 2318 //----------------------------------------------------------------------------- 2319 // ProggyClean.ttf 2320 // Copyright (c) 2004, 2005 Tristan Grimmer 2321 // MIT license (see License.txt in http://www.upperbounds.net/download/ProggyClean.ttf.zip) 2322 // Download and more information at http://upperbounds.net 2323 //----------------------------------------------------------------------------- 2324 // File: 'ProggyClean.ttf' (41208 bytes) 2325 // Exported using binary_to_compressed_c.cpp 2326 //----------------------------------------------------------------------------- 2327 static const char proggy_clean_ttf_compressed_data_base85[11980+1] = 2328 "7])#######hV0qs'/###[),##/l:$#Q6>##5[n42>c-TH`->>#/e>11NNV=Bv(*:.F?uu#(gRU.o0XGH`$vhLG1hxt9?W`#,5LsCp#-i>.r$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/" 2329 "2*>]b(MC;$jPfY.;h^`IWM9<Lh2TlS+f-s$o6Q<BWH`YiU.xfLq$N;$0iR/GX:U(jcW2p/W*q?-qmnUCI;jHSAiFWM.R*kU@C=GH?a9wp8f$e.-4^Qg1)Q-GL(lf(r/7GrRgwV%MS=C#" 2330 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">gXm8YB`1d@K#n]76-a$U,mF<fX]idqd)<3,]J7JmW4`6]uks=4-72L(jEk+:bJ0M^q-8Dm_Z?0olP1C9Sa&H[d&c$ooQUj]Exd*3ZM@-WGW2%s',B-_M%>%Ul:#/'xoFM9QX-$.QN'>" 2397 "[%$Z$uF6pA6Ki2O5:8w*vP1<-1`[G,)-m#>0`P&#eb#.3i)rtB61(o'$?X3B</R90;eZ]%Ncq;-Tl]#F>2Qft^ae_5tKL9MUe9b*sLEQ95C&`=G?@Mj=wh*'3E>=-<)Gt*Iw)'QG:`@I" 2398 "wOf7&]1i'S01B+Ev/Nac#9S;=;YQpg_6U`*kVY39xK,[/6Aj7:'1Bm-_1EYfa1+o&o4hp7KN_Q(OlIo@S%;jVdn0'1<Vc52=u`3^o-n1'g4v58Hj&6_t7$##?M)c<$bgQ_'SY((-xkA#" 2399 "Y(,p'H9rIVY-b,'%bCPF7.J<Up^,(dU1VY*5#WkTU>h19w,WQhLI)3S#f$2(eb,jr*b;3Vw]*7NH%$c4Vs,eD9>XW8?N]o+(*pgC%/72LV-u<Hp,3@e^9UB1J+ak9-TN/mhKPg+AJYd$" 2400 "MlvAF_jCK*.O-^(63adMT->W%iewS8W6m2rtCpo'RS1R84=@paTKt)>=%&1[)*vp'u+x,VrwN;&]kuO9JDbg=pO$J*.jVe;u'm0dr9l,<*wMK*Oe=g8lV_KEBFkO'oU]^=[-792#ok,)" 2401 "i]lR8qQ2oA8wcRCZ^7w/Njh;?.stX?Q1>S1q4Bn$)K1<-rGdO'$Wr.Lc.CG)$/*JL4tNR/,SVO3,aUw'DJN:)Ss;wGn9A32ijw%FL+Z0Fn.U9;reSq)bmI32U==5ALuG&#Vf1398/pVo" 2402 "1*c-(aY168o<`JsSbk-,1N;$>0:OUas(3:8Z972LSfF8eb=c-;>SPw7.6hn3m`9^Xkn(r.qS[0;T%&Qc=+STRxX'q1BNk3&*eu2;&8q$&x>Q#Q7^Tf+6<(d%ZVmj2bDi%.3L2n+4W'$P" 2403 "iDDG)g,r%+?,$@?uou5tSe2aN_AQU*<h`e-GI7)?OK2A.d7_c)?wQ5AS@DL3r#7fSkgl6-++D:'A,uq7SvlB$pcpH'q3n0#_%dY#xCpr-l<F0NR@-##FEV6NTF6##$l84N1w?AO>'IAO" 2404 "URQ##V^Fv-XFbGM7Fl(N<3DhLGF%q.1rC$#:T__&Pi68%0xi_&[qFJ(77j_&JWoF.V735&T,[R*:xFR*K5>>#`bW-?4Ne_&6Ne_&6Ne_&n`kr-#GJcM6X;uM6X;uM(.a..^2TkL%oR(#" 2405 ";u.T%fAr%4tJ8&><1=GHZ_+m9/#H1F^R#SC#*N=BA9(D?v[UiFY>>^8p,KKF.W]L29uLkLlu/+4T<XoIB&hx=T1PcDaB&;HH+-AFr?(m9HZV)FKS8JCw;SD=6[^/DZUL`EUDf]GGlG&>" 2406 "w$)F./^n3+rlo+DB;5sIYGNk+i1t-69Jg--0pao7Sm#K)pdHW&;LuDNH@H>#/X-TI(;P>#,Gc>#0Su>#4`1?#8lC?#<xU?#@.i?#D:%@#HF7@#LRI@#P_[@#Tkn@#Xw*A#]-=A#a9OA#" 2407 "d<F&#*;G##.GY##2Sl##6`($#:l:$#>xL$#B.`$#F:r$#JF.%#NR@%#R_R%#Vke%#Zww%#_-4^Rh%Sflr-k'MS.o?.5/sWel/wpEM0%3'/1)K^f1-d>G21&v(35>V`39V7A4=onx4" 2408 "A1OY5EI0;6Ibgr6M$HS7Q<)58C5w,;WoA*#[%T*#`1g*#d=#+#hI5+#lUG+#pbY+#tnl+#x$),#&1;,#*=M,#.I`,#2Ur,#6b.-#;w[H#iQtA#m^0B#qjBB#uvTB##-hB#'9$C#+E6C#" 2409 "/QHC#3^ZC#7jmC#;v)D#?,<D#C8ND#GDaD#KPsD#O]/E#g1A5#KA*1#gC17#MGd;#8(02#L-d3#rWM4#Hga1#,<w0#T.j<#O#'2#CYN1#qa^:#_4m3#o@/=#eG8=#t8J5#`+78#4uI-#" 2410 "m3B2#SB[8#Q0@8#i[*9#iOn8#1Nm;#^sN9#qh<9#:=x-#P;K2#$%X9#bC+.#Rg;<#mN=.#MTF.#RZO.#2?)4#Y#(/#[)1/#b;L/#dAU/#0Sv;#lY$0#n`-0#sf60#(F24#wrH0#%/e0#" 2411 "TmD<#%JSMFove:CTBEXI:<eh2g)B,3h2^G3i;#d3jD>)4kMYD4lVu`4m`:&5niUA5@(A5BA1]PBB:xlBCC=2CDLXMCEUtiCf&0g2'tN?PGT4CPGT4CPGT4CPGT4CPGT4CPGT4CPGT4CP" 2412 "GT4CPGT4CPGT4CPGT4CPGT4CPGT4CP-qekC`.9kEg^+F$kwViFJTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5o,^<-28ZI'O?;xp" 2413 "O?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xp;7q-#lLYI:xvD=#"; 2414 2415 static const char* GetDefaultCompressedFontDataTTFBase85() 2416 { 2417 return proggy_clean_ttf_compressed_data_base85; 2418 }