// dear imgui, v1.50 WIP // (drawing and font code) // Contains implementation for // - ImDrawList // - ImDrawData // - ImFontAtlas // - ImFont // - Default font data #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS) #define _CRT_SECURE_NO_WARNINGS #endif #include "imgui.h" #define IMGUI_DEFINE_MATH_OPERATORS #define IMGUI_DEFINE_PLACEMENT_NEW #include "imgui_internal.h" #include // vsnprintf, sscanf, printf #if !defined(alloca) #ifdef _WIN32 #include // alloca #elif (defined(__FreeBSD__) || defined(FreeBSD_kernel) || defined(__DragonFly__)) && !defined(__GLIBC__) #include // alloca. FreeBSD uses stdlib.h unless GLIBC #else #include // alloca #endif #endif #ifdef _MSC_VER #pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff) #pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen #define snprintf _snprintf #endif #ifdef __clang__ #pragma clang diagnostic ignored "-Wold-style-cast" // warning : use of old-style cast // yes, they are more terse. #pragma clang diagnostic ignored "-Wfloat-equal" // warning : comparing floating point with == or != is unsafe // storing and comparing against same constants ok. #pragma clang diagnostic ignored "-Wglobal-constructors" // warning : declaration requires a global destructor // similar to above, not sure what the exact difference it. #pragma clang diagnostic ignored "-Wsign-conversion" // warning : implicit conversion changes signedness // #if __has_warning("-Wreserved-id-macro") #pragma clang diagnostic ignored "-Wreserved-id-macro" // warning : macro name is a reserved identifier // #endif #elif defined(__GNUC__) #pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used #pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function #pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value #pragma GCC diagnostic ignored "-Wcast-qual" // warning: cast from type 'xxxx' to type 'xxxx' casts away qualifiers #endif //------------------------------------------------------------------------- // STB libraries implementation //------------------------------------------------------------------------- //#define IMGUI_STB_NAMESPACE ImGuiStb //#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION //#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION #ifdef IMGUI_STB_NAMESPACE namespace IMGUI_STB_NAMESPACE { #endif #ifdef _MSC_VER #pragma warning (push) #pragma warning (disable: 4456) // declaration of 'xx' hides previous local declaration #endif #ifdef __clang__ #pragma clang diagnostic push #pragma clang diagnostic ignored "-Wold-style-cast" // warning : use of old-style cast // yes, they are more terse. #pragma clang diagnostic ignored "-Wunused-function" #pragma clang diagnostic ignored "-Wmissing-prototypes" #endif #ifdef __GNUC__ #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wtype-limits" // warning: comparison is always true due to limited range of data type [-Wtype-limits] #endif #define STBRP_ASSERT(x) IM_ASSERT(x) #ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION #define STBRP_STATIC #define STB_RECT_PACK_IMPLEMENTATION #endif #include "stb_rect_pack.h" #define STBTT_malloc(x,u) ((void)(u), ImGui::MemAlloc(x)) #define STBTT_free(x,u) ((void)(u), ImGui::MemFree(x)) #define STBTT_assert(x) IM_ASSERT(x) #ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION #define STBTT_STATIC #define STB_TRUETYPE_IMPLEMENTATION #else #define STBTT_DEF extern #endif #include "stb_truetype.h" #ifdef __GNUC__ #pragma GCC diagnostic pop #endif #ifdef __clang__ #pragma clang diagnostic pop #endif #ifdef _MSC_VER #pragma warning (pop) #endif #ifdef IMGUI_STB_NAMESPACE } // namespace ImGuiStb using namespace IMGUI_STB_NAMESPACE; #endif //----------------------------------------------------------------------------- // ImDrawList //----------------------------------------------------------------------------- static const ImVec4 GNullClipRect(-8192.0f, -8192.0f, +8192.0f, +8192.0f); // Large values that are easy to encode in a few bits+shift void ImDrawList::Clear() { CmdBuffer.resize(0); IdxBuffer.resize(0); VtxBuffer.resize(0); _VtxCurrentIdx = 0; _VtxWritePtr = NULL; _IdxWritePtr = NULL; _ClipRectStack.resize(0); _TextureIdStack.resize(0); _Path.resize(0); _ChannelsCurrent = 0; _ChannelsCount = 1; // NB: Do not clear channels so our allocations are re-used after the first frame. } void ImDrawList::ClearFreeMemory() { CmdBuffer.clear(); IdxBuffer.clear(); VtxBuffer.clear(); _VtxCurrentIdx = 0; _VtxWritePtr = NULL; _IdxWritePtr = NULL; _ClipRectStack.clear(); _TextureIdStack.clear(); _Path.clear(); _ChannelsCurrent = 0; _ChannelsCount = 1; for (int i = 0; i < _Channels.Size; i++) { if (i == 0) memset(&_Channels[0], 0, sizeof(_Channels[0])); // channel 0 is a copy of CmdBuffer/IdxBuffer, don't destruct again _Channels[i].CmdBuffer.clear(); _Channels[i].IdxBuffer.clear(); } _Channels.clear(); } // Use macros because C++ is a terrible language, we want guaranteed inline, no code in header, and no overhead in Debug mode #define GetCurrentClipRect() (_ClipRectStack.Size ? _ClipRectStack.Data[_ClipRectStack.Size-1] : GNullClipRect) #define GetCurrentTextureId() (_TextureIdStack.Size ? _TextureIdStack.Data[_TextureIdStack.Size-1] : NULL) void ImDrawList::AddDrawCmd() { ImDrawCmd draw_cmd; draw_cmd.ClipRect = GetCurrentClipRect(); draw_cmd.TextureId = GetCurrentTextureId(); IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w); CmdBuffer.push_back(draw_cmd); } void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data) { ImDrawCmd* current_cmd = CmdBuffer.Size ? &CmdBuffer.back() : NULL; if (!current_cmd || current_cmd->ElemCount != 0 || current_cmd->UserCallback != NULL) { AddDrawCmd(); current_cmd = &CmdBuffer.back(); } current_cmd->UserCallback = callback; current_cmd->UserCallbackData = callback_data; AddDrawCmd(); // Force a new command after us (see comment below) } // 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. // 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. void ImDrawList::UpdateClipRect() { // If current command is used with different settings we need to add a new command const ImVec4 curr_clip_rect = GetCurrentClipRect(); ImDrawCmd* curr_cmd = CmdBuffer.Size > 0 ? &CmdBuffer.Data[CmdBuffer.Size-1] : NULL; if (!curr_cmd || (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &curr_clip_rect, sizeof(ImVec4)) != 0) || curr_cmd->UserCallback != NULL) { AddDrawCmd(); return; } // Try to merge with previous command if it matches, else use current command ImDrawCmd* prev_cmd = CmdBuffer.Size > 1 ? curr_cmd - 1 : NULL; 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) CmdBuffer.pop_back(); else curr_cmd->ClipRect = curr_clip_rect; } void ImDrawList::UpdateTextureID() { // If current command is used with different settings we need to add a new command const ImTextureID curr_texture_id = GetCurrentTextureId(); ImDrawCmd* curr_cmd = CmdBuffer.Size ? &CmdBuffer.back() : NULL; if (!curr_cmd || (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != curr_texture_id) || curr_cmd->UserCallback != NULL) { AddDrawCmd(); return; } // Try to merge with previous command if it matches, else use current command ImDrawCmd* prev_cmd = CmdBuffer.Size > 1 ? curr_cmd - 1 : NULL; if (prev_cmd && prev_cmd->TextureId == curr_texture_id && memcmp(&prev_cmd->ClipRect, &GetCurrentClipRect(), sizeof(ImVec4)) == 0 && prev_cmd->UserCallback == NULL) CmdBuffer.pop_back(); else curr_cmd->TextureId = curr_texture_id; } #undef GetCurrentClipRect #undef GetCurrentTextureId // 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) void ImDrawList::PushClipRect(ImVec2 cr_min, ImVec2 cr_max, bool intersect_with_current_clip_rect) { ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y); if (intersect_with_current_clip_rect && _ClipRectStack.Size) { ImVec4 current = _ClipRectStack.Data[_ClipRectStack.Size-1]; if (cr.x < current.x) cr.x = current.x; if (cr.y < current.y) cr.y = current.y; if (cr.z > current.z) cr.z = current.z; if (cr.w > current.w) cr.w = current.w; } cr.z = ImMax(cr.x, cr.z); cr.w = ImMax(cr.y, cr.w); _ClipRectStack.push_back(cr); UpdateClipRect(); } void ImDrawList::PushClipRectFullScreen() { PushClipRect(ImVec2(GNullClipRect.x, GNullClipRect.y), ImVec2(GNullClipRect.z, GNullClipRect.w)); //PushClipRect(GetVisibleRect()); // FIXME-OPT: This would be more correct but we're not supposed to access ImGuiContext from here? } void ImDrawList::PopClipRect() { IM_ASSERT(_ClipRectStack.Size > 0); _ClipRectStack.pop_back(); UpdateClipRect(); } void ImDrawList::PushTextureID(const ImTextureID& texture_id) { _TextureIdStack.push_back(texture_id); UpdateTextureID(); } void ImDrawList::PopTextureID() { IM_ASSERT(_TextureIdStack.Size > 0); _TextureIdStack.pop_back(); UpdateTextureID(); } void ImDrawList::ChannelsSplit(int channels_count) { IM_ASSERT(_ChannelsCurrent == 0 && _ChannelsCount == 1); int old_channels_count = _Channels.Size; if (old_channels_count < channels_count) _Channels.resize(channels_count); _ChannelsCount = channels_count; // _Channels[] (24 bytes each) hold storage that we'll swap with this->_CmdBuffer/_IdxBuffer // 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. // When we switch to the next channel, we'll copy _CmdBuffer/_IdxBuffer into _Channels[0] and then _Channels[1] into _CmdBuffer/_IdxBuffer memset(&_Channels[0], 0, sizeof(ImDrawChannel)); for (int i = 1; i < channels_count; i++) { if (i >= old_channels_count) { IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel(); } else { _Channels[i].CmdBuffer.resize(0); _Channels[i].IdxBuffer.resize(0); } if (_Channels[i].CmdBuffer.Size == 0) { ImDrawCmd draw_cmd; draw_cmd.ClipRect = _ClipRectStack.back(); draw_cmd.TextureId = _TextureIdStack.back(); _Channels[i].CmdBuffer.push_back(draw_cmd); } } } void ImDrawList::ChannelsMerge() { // 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. if (_ChannelsCount <= 1) return; ChannelsSetCurrent(0); if (CmdBuffer.Size && CmdBuffer.back().ElemCount == 0) CmdBuffer.pop_back(); int new_cmd_buffer_count = 0, new_idx_buffer_count = 0; for (int i = 1; i < _ChannelsCount; i++) { ImDrawChannel& ch = _Channels[i]; if (ch.CmdBuffer.Size && ch.CmdBuffer.back().ElemCount == 0) ch.CmdBuffer.pop_back(); new_cmd_buffer_count += ch.CmdBuffer.Size; new_idx_buffer_count += ch.IdxBuffer.Size; } CmdBuffer.resize(CmdBuffer.Size + new_cmd_buffer_count); IdxBuffer.resize(IdxBuffer.Size + new_idx_buffer_count); ImDrawCmd* cmd_write = CmdBuffer.Data + CmdBuffer.Size - new_cmd_buffer_count; _IdxWritePtr = IdxBuffer.Data + IdxBuffer.Size - new_idx_buffer_count; for (int i = 1; i < _ChannelsCount; i++) { ImDrawChannel& ch = _Channels[i]; if (int sz = ch.CmdBuffer.Size) { memcpy(cmd_write, ch.CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; } if (int sz = ch.IdxBuffer.Size) { memcpy(_IdxWritePtr, ch.IdxBuffer.Data, sz * sizeof(ImDrawIdx)); _IdxWritePtr += sz; } } AddDrawCmd(); _ChannelsCount = 1; } void ImDrawList::ChannelsSetCurrent(int idx) { IM_ASSERT(idx < _ChannelsCount); if (_ChannelsCurrent == idx) return; memcpy(&_Channels.Data[_ChannelsCurrent].CmdBuffer, &CmdBuffer, sizeof(CmdBuffer)); // copy 12 bytes, four times memcpy(&_Channels.Data[_ChannelsCurrent].IdxBuffer, &IdxBuffer, sizeof(IdxBuffer)); _ChannelsCurrent = idx; memcpy(&CmdBuffer, &_Channels.Data[_ChannelsCurrent].CmdBuffer, sizeof(CmdBuffer)); memcpy(&IdxBuffer, &_Channels.Data[_ChannelsCurrent].IdxBuffer, sizeof(IdxBuffer)); _IdxWritePtr = IdxBuffer.Data + IdxBuffer.Size; } // NB: this can be called with negative count for removing primitives (as long as the result does not underflow) void ImDrawList::PrimReserve(int idx_count, int vtx_count) { ImDrawCmd& draw_cmd = CmdBuffer.Data[CmdBuffer.Size-1]; draw_cmd.ElemCount += idx_count; int vtx_buffer_size = VtxBuffer.Size; VtxBuffer.resize(vtx_buffer_size + vtx_count); _VtxWritePtr = VtxBuffer.Data + vtx_buffer_size; int idx_buffer_size = IdxBuffer.Size; IdxBuffer.resize(idx_buffer_size + idx_count); _IdxWritePtr = IdxBuffer.Data + idx_buffer_size; } // Fully unrolled with inline call to keep our debug builds decently fast. void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col) { ImVec2 b(c.x, a.y), d(a.x, c.y), uv(GImGui->FontTexUvWhitePixel); ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx; _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2); _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3); _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col; _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col; _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col; _VtxWritePtr += 4; _VtxCurrentIdx += 4; _IdxWritePtr += 6; } void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col) { 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); ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx; _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2); _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3); _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col; _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col; _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col; _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col; _VtxWritePtr += 4; _VtxCurrentIdx += 4; _IdxWritePtr += 6; } 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) { ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx; _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2); _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3); _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col; _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col; _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col; _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col; _VtxWritePtr += 4; _VtxCurrentIdx += 4; _IdxWritePtr += 6; } // TODO: Thickness anti-aliased lines cap are missing their AA fringe. void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, bool closed, float thickness, bool anti_aliased) { if (points_count < 2) return; const ImVec2 uv = GImGui->FontTexUvWhitePixel; anti_aliased &= GImGui->Style.AntiAliasedLines; //if (ImGui::GetIO().KeyCtrl) anti_aliased = false; // Debug int count = points_count; if (!closed) count = points_count-1; const bool thick_line = thickness > 1.0f; if (anti_aliased) { // Anti-aliased stroke const float AA_SIZE = 1.0f; const ImU32 col_trans = col & IM_COL32(255,255,255,0); const int idx_count = thick_line ? count*18 : count*12; const int vtx_count = thick_line ? points_count*4 : points_count*3; PrimReserve(idx_count, vtx_count); // Temporary buffer ImVec2* temp_normals = (ImVec2*)alloca(points_count * (thick_line ? 5 : 3) * sizeof(ImVec2)); ImVec2* temp_points = temp_normals + points_count; for (int i1 = 0; i1 < count; i1++) { const int i2 = (i1+1) == points_count ? 0 : i1+1; ImVec2 diff = points[i2] - points[i1]; diff *= ImInvLength(diff, 1.0f); temp_normals[i1].x = diff.y; temp_normals[i1].y = -diff.x; } if (!closed) temp_normals[points_count-1] = temp_normals[points_count-2]; if (!thick_line) { if (!closed) { temp_points[0] = points[0] + temp_normals[0] * AA_SIZE; temp_points[1] = points[0] - temp_normals[0] * AA_SIZE; temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * AA_SIZE; temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * AA_SIZE; } // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer. unsigned int idx1 = _VtxCurrentIdx; for (int i1 = 0; i1 < count; i1++) { const int i2 = (i1+1) == points_count ? 0 : i1+1; unsigned int idx2 = (i1+1) == points_count ? _VtxCurrentIdx : idx1+3; // Average normals ImVec2 dm = (temp_normals[i1] + temp_normals[i2]) * 0.5f; float dmr2 = dm.x*dm.x + dm.y*dm.y; if (dmr2 > 0.000001f) { float scale = 1.0f / dmr2; if (scale > 100.0f) scale = 100.0f; dm *= scale; } dm *= AA_SIZE; temp_points[i2*2+0] = points[i2] + dm; temp_points[i2*2+1] = points[i2] - dm; // Add indexes _IdxWritePtr[0] = (ImDrawIdx)(idx2+0); _IdxWritePtr[1] = (ImDrawIdx)(idx1+0); _IdxWritePtr[2] = (ImDrawIdx)(idx1+2); _IdxWritePtr[3] = (ImDrawIdx)(idx1+2); _IdxWritePtr[4] = (ImDrawIdx)(idx2+2); _IdxWritePtr[5] = (ImDrawIdx)(idx2+0); _IdxWritePtr[6] = (ImDrawIdx)(idx2+1); _IdxWritePtr[7] = (ImDrawIdx)(idx1+1); _IdxWritePtr[8] = (ImDrawIdx)(idx1+0); _IdxWritePtr[9] = (ImDrawIdx)(idx1+0); _IdxWritePtr[10]= (ImDrawIdx)(idx2+0); _IdxWritePtr[11]= (ImDrawIdx)(idx2+1); _IdxWritePtr += 12; idx1 = idx2; } // Add vertexes for (int i = 0; i < points_count; i++) { _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; _VtxWritePtr[1].pos = temp_points[i*2+0]; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans; _VtxWritePtr[2].pos = temp_points[i*2+1]; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col_trans; _VtxWritePtr += 3; } } else { const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f; if (!closed) { temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE); temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness); temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness); temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE); temp_points[(points_count-1)*4+0] = points[points_count-1] + temp_normals[points_count-1] * (half_inner_thickness + AA_SIZE); temp_points[(points_count-1)*4+1] = points[points_count-1] + temp_normals[points_count-1] * (half_inner_thickness); temp_points[(points_count-1)*4+2] = points[points_count-1] - temp_normals[points_count-1] * (half_inner_thickness); temp_points[(points_count-1)*4+3] = points[points_count-1] - temp_normals[points_count-1] * (half_inner_thickness + AA_SIZE); } // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer. unsigned int idx1 = _VtxCurrentIdx; for (int i1 = 0; i1 < count; i1++) { const int i2 = (i1+1) == points_count ? 0 : i1+1; unsigned int idx2 = (i1+1) == points_count ? _VtxCurrentIdx : idx1+4; // Average normals ImVec2 dm = (temp_normals[i1] + temp_normals[i2]) * 0.5f; float dmr2 = dm.x*dm.x + dm.y*dm.y; if (dmr2 > 0.000001f) { float scale = 1.0f / dmr2; if (scale > 100.0f) scale = 100.0f; dm *= scale; } ImVec2 dm_out = dm * (half_inner_thickness + AA_SIZE); ImVec2 dm_in = dm * half_inner_thickness; temp_points[i2*4+0] = points[i2] + dm_out; temp_points[i2*4+1] = points[i2] + dm_in; temp_points[i2*4+2] = points[i2] - dm_in; temp_points[i2*4+3] = points[i2] - dm_out; // Add indexes _IdxWritePtr[0] = (ImDrawIdx)(idx2+1); _IdxWritePtr[1] = (ImDrawIdx)(idx1+1); _IdxWritePtr[2] = (ImDrawIdx)(idx1+2); _IdxWritePtr[3] = (ImDrawIdx)(idx1+2); _IdxWritePtr[4] = (ImDrawIdx)(idx2+2); _IdxWritePtr[5] = (ImDrawIdx)(idx2+1); _IdxWritePtr[6] = (ImDrawIdx)(idx2+1); _IdxWritePtr[7] = (ImDrawIdx)(idx1+1); _IdxWritePtr[8] = (ImDrawIdx)(idx1+0); _IdxWritePtr[9] = (ImDrawIdx)(idx1+0); _IdxWritePtr[10] = (ImDrawIdx)(idx2+0); _IdxWritePtr[11] = (ImDrawIdx)(idx2+1); _IdxWritePtr[12] = (ImDrawIdx)(idx2+2); _IdxWritePtr[13] = (ImDrawIdx)(idx1+2); _IdxWritePtr[14] = (ImDrawIdx)(idx1+3); _IdxWritePtr[15] = (ImDrawIdx)(idx1+3); _IdxWritePtr[16] = (ImDrawIdx)(idx2+3); _IdxWritePtr[17] = (ImDrawIdx)(idx2+2); _IdxWritePtr += 18; idx1 = idx2; } // Add vertexes for (int i = 0; i < points_count; i++) { _VtxWritePtr[0].pos = temp_points[i*4+0]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col_trans; _VtxWritePtr[1].pos = temp_points[i*4+1]; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col; _VtxWritePtr[2].pos = temp_points[i*4+2]; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col; _VtxWritePtr[3].pos = temp_points[i*4+3]; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col_trans; _VtxWritePtr += 4; } } _VtxCurrentIdx += (ImDrawIdx)vtx_count; } else { // Non Anti-aliased Stroke const int idx_count = count*6; const int vtx_count = count*4; // FIXME-OPT: Not sharing edges PrimReserve(idx_count, vtx_count); for (int i1 = 0; i1 < count; i1++) { const int i2 = (i1+1) == points_count ? 0 : i1+1; const ImVec2& p1 = points[i1]; const ImVec2& p2 = points[i2]; ImVec2 diff = p2 - p1; diff *= ImInvLength(diff, 1.0f); const float dx = diff.x * (thickness * 0.5f); const float dy = diff.y * (thickness * 0.5f); _VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; _VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col; _VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col; _VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col; _VtxWritePtr += 4; _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx+1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx+2); _IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx+2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx+3); _IdxWritePtr += 6; _VtxCurrentIdx += 4; } } } void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col, bool anti_aliased) { const ImVec2 uv = GImGui->FontTexUvWhitePixel; anti_aliased &= GImGui->Style.AntiAliasedShapes; //if (ImGui::GetIO().KeyCtrl) anti_aliased = false; // Debug if (anti_aliased) { // Anti-aliased Fill const float AA_SIZE = 1.0f; const ImU32 col_trans = col & IM_COL32(255,255,255,0); const int idx_count = (points_count-2)*3 + points_count*6; const int vtx_count = (points_count*2); PrimReserve(idx_count, vtx_count); // Add indexes for fill unsigned int vtx_inner_idx = _VtxCurrentIdx; unsigned int vtx_outer_idx = _VtxCurrentIdx+1; for (int i = 2; i < points_count; i++) { _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx+((i-1)<<1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx+(i<<1)); _IdxWritePtr += 3; } // Compute normals ImVec2* temp_normals = (ImVec2*)alloca(points_count * sizeof(ImVec2)); for (int i0 = points_count-1, i1 = 0; i1 < points_count; i0 = i1++) { const ImVec2& p0 = points[i0]; const ImVec2& p1 = points[i1]; ImVec2 diff = p1 - p0; diff *= ImInvLength(diff, 1.0f); temp_normals[i0].x = diff.y; temp_normals[i0].y = -diff.x; } for (int i0 = points_count-1, i1 = 0; i1 < points_count; i0 = i1++) { // Average normals const ImVec2& n0 = temp_normals[i0]; const ImVec2& n1 = temp_normals[i1]; ImVec2 dm = (n0 + n1) * 0.5f; float dmr2 = dm.x*dm.x + dm.y*dm.y; if (dmr2 > 0.000001f) { float scale = 1.0f / dmr2; if (scale > 100.0f) scale = 100.0f; dm *= scale; } dm *= AA_SIZE * 0.5f; // Add vertices _VtxWritePtr[0].pos = (points[i1] - dm); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; // Inner _VtxWritePtr[1].pos = (points[i1] + dm); _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans; // Outer _VtxWritePtr += 2; // Add indexes for fringes _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx+(i1<<1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx+(i0<<1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx+(i0<<1)); _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx+(i0<<1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx+(i1<<1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx+(i1<<1)); _IdxWritePtr += 6; } _VtxCurrentIdx += (ImDrawIdx)vtx_count; } else { // Non Anti-aliased Fill const int idx_count = (points_count-2)*3; const int vtx_count = points_count; PrimReserve(idx_count, vtx_count); for (int i = 0; i < vtx_count; i++) { _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; _VtxWritePtr++; } for (int i = 2; i < points_count; i++) { _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx+i-1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx+i); _IdxWritePtr += 3; } _VtxCurrentIdx += (ImDrawIdx)vtx_count; } } void ImDrawList::PathArcToFast(const ImVec2& centre, float radius, int amin, int amax) { static ImVec2 circle_vtx[12]; static bool circle_vtx_builds = false; const int circle_vtx_count = IM_ARRAYSIZE(circle_vtx); if (!circle_vtx_builds) { for (int i = 0; i < circle_vtx_count; i++) { const float a = ((float)i / (float)circle_vtx_count) * 2*IM_PI; circle_vtx[i].x = cosf(a); circle_vtx[i].y = sinf(a); } circle_vtx_builds = true; } if (amin > amax) return; if (radius == 0.0f) { _Path.push_back(centre); } else { _Path.reserve(_Path.Size + (amax - amin + 1)); for (int a = amin; a <= amax; a++) { const ImVec2& c = circle_vtx[a % circle_vtx_count]; _Path.push_back(ImVec2(centre.x + c.x * radius, centre.y + c.y * radius)); } } } void ImDrawList::PathArcTo(const ImVec2& centre, float radius, float amin, float amax, int num_segments) { if (radius == 0.0f) _Path.push_back(centre); _Path.reserve(_Path.Size + (num_segments + 1)); for (int i = 0; i <= num_segments; i++) { const float a = amin + ((float)i / (float)num_segments) * (amax - amin); _Path.push_back(ImVec2(centre.x + cosf(a) * radius, centre.y + sinf(a) * radius)); } } static void PathBezierToCasteljau(ImVector* path, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4, float tess_tol, int level) { float dx = x4 - x1; float dy = y4 - y1; float d2 = ((x2 - x4) * dy - (y2 - y4) * dx); float d3 = ((x3 - x4) * dy - (y3 - y4) * dx); d2 = (d2 >= 0) ? d2 : -d2; d3 = (d3 >= 0) ? d3 : -d3; if ((d2+d3) * (d2+d3) < tess_tol * (dx*dx + dy*dy)) { path->push_back(ImVec2(x4, y4)); } else if (level < 10) { float x12 = (x1+x2)*0.5f, y12 = (y1+y2)*0.5f; float x23 = (x2+x3)*0.5f, y23 = (y2+y3)*0.5f; float x34 = (x3+x4)*0.5f, y34 = (y3+y4)*0.5f; float x123 = (x12+x23)*0.5f, y123 = (y12+y23)*0.5f; float x234 = (x23+x34)*0.5f, y234 = (y23+y34)*0.5f; float x1234 = (x123+x234)*0.5f, y1234 = (y123+y234)*0.5f; PathBezierToCasteljau(path, x1,y1, x12,y12, x123,y123, x1234,y1234, tess_tol, level+1); PathBezierToCasteljau(path, x1234,y1234, x234,y234, x34,y34, x4,y4, tess_tol, level+1); } } void ImDrawList::PathBezierCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments) { ImVec2 p1 = _Path.back(); if (num_segments == 0) { // Auto-tessellated PathBezierToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, GImGui->Style.CurveTessellationTol, 0); } else { float t_step = 1.0f / (float)num_segments; for (int i_step = 1; i_step <= num_segments; i_step++) { float t = t_step * i_step; float u = 1.0f - t; float w1 = u*u*u; float w2 = 3*u*u*t; float w3 = 3*u*t*t; float w4 = t*t*t; _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)); } } } void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, int rounding_corners) { float r = rounding; 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); 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); if (r <= 0.0f || rounding_corners == 0) { PathLineTo(a); PathLineTo(ImVec2(b.x,a.y)); PathLineTo(b); PathLineTo(ImVec2(a.x,b.y)); } else { const float r0 = (rounding_corners & 1) ? r : 0.0f; const float r1 = (rounding_corners & 2) ? r : 0.0f; const float r2 = (rounding_corners & 4) ? r : 0.0f; const float r3 = (rounding_corners & 8) ? r : 0.0f; PathArcToFast(ImVec2(a.x+r0,a.y+r0), r0, 6, 9); PathArcToFast(ImVec2(b.x-r1,a.y+r1), r1, 9, 12); PathArcToFast(ImVec2(b.x-r2,b.y-r2), r2, 0, 3); PathArcToFast(ImVec2(a.x+r3,b.y-r3), r3, 3, 6); } } void ImDrawList::AddLine(const ImVec2& a, const ImVec2& b, ImU32 col, float thickness) { if ((col & IM_COL32_A_MASK) == 0) return; PathLineTo(a + ImVec2(0.5f,0.5f)); PathLineTo(b + ImVec2(0.5f,0.5f)); PathStroke(col, false, thickness); } // a: upper-left, b: lower-right. we don't render 1 px sized rectangles properly. void ImDrawList::AddRect(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding, int rounding_corners_flags, float thickness) { if ((col & IM_COL32_A_MASK) == 0) return; PathRect(a + ImVec2(0.5f,0.5f), b - ImVec2(0.5f,0.5f), rounding, rounding_corners_flags); PathStroke(col, true, thickness); } void ImDrawList::AddRectFilled(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding, int rounding_corners_flags) { if ((col & IM_COL32_A_MASK) == 0) return; if (rounding > 0.0f) { PathRect(a, b, rounding, rounding_corners_flags); PathFill(col); } else { PrimReserve(6, 4); PrimRect(a, b, col); } } 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) { if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0) return; const ImVec2 uv = GImGui->FontTexUvWhitePixel; PrimReserve(6, 4); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+3)); PrimWriteVtx(a, uv, col_upr_left); PrimWriteVtx(ImVec2(c.x, a.y), uv, col_upr_right); PrimWriteVtx(c, uv, col_bot_right); PrimWriteVtx(ImVec2(a.x, c.y), uv, col_bot_left); } void ImDrawList::AddQuad(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, ImU32 col, float thickness) { if ((col & IM_COL32_A_MASK) == 0) return; PathLineTo(a); PathLineTo(b); PathLineTo(c); PathLineTo(d); PathStroke(col, true, thickness); } void ImDrawList::AddQuadFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, ImU32 col) { if ((col & IM_COL32_A_MASK) == 0) return; PathLineTo(a); PathLineTo(b); PathLineTo(c); PathLineTo(d); PathFill(col); } void ImDrawList::AddTriangle(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col, float thickness) { if ((col & IM_COL32_A_MASK) == 0) return; PathLineTo(a); PathLineTo(b); PathLineTo(c); PathStroke(col, true, thickness); } void ImDrawList::AddTriangleFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col) { if ((col & IM_COL32_A_MASK) == 0) return; PathLineTo(a); PathLineTo(b); PathLineTo(c); PathFill(col); } void ImDrawList::AddCircle(const ImVec2& centre, float radius, ImU32 col, int num_segments, float thickness) { if ((col & IM_COL32_A_MASK) == 0) return; const float a_max = IM_PI*2.0f * ((float)num_segments - 1.0f) / (float)num_segments; PathArcTo(centre, radius-0.5f, 0.0f, a_max, num_segments); PathStroke(col, true, thickness); } void ImDrawList::AddCircleFilled(const ImVec2& centre, float radius, ImU32 col, int num_segments) { if ((col & IM_COL32_A_MASK) == 0) return; const float a_max = IM_PI*2.0f * ((float)num_segments - 1.0f) / (float)num_segments; PathArcTo(centre, radius, 0.0f, a_max, num_segments); PathFill(col); } void ImDrawList::AddBezierCurve(const ImVec2& pos0, const ImVec2& cp0, const ImVec2& cp1, const ImVec2& pos1, ImU32 col, float thickness, int num_segments) { if ((col & IM_COL32_A_MASK) == 0) return; PathLineTo(pos0); PathBezierCurveTo(cp0, cp1, pos1, num_segments); PathStroke(col, false, thickness); } 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) { if ((col & IM_COL32_A_MASK) == 0) return; if (text_end == NULL) text_end = text_begin + strlen(text_begin); if (text_begin == text_end) return; // 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. // Might just move Font/FontSize to ImDrawList? if (font == NULL) font = GImGui->Font; if (font_size == 0.0f) font_size = GImGui->FontSize; IM_ASSERT(font->ContainerAtlas->TexID == _TextureIdStack.back()); // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font. ImVec4 clip_rect = _ClipRectStack.back(); if (cpu_fine_clip_rect) { clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x); clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y); clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z); clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w); } font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL); } void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end) { AddText(GImGui->Font, GImGui->FontSize, pos, col, text_begin, text_end); } void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv0, const ImVec2& uv1, ImU32 col) { if ((col & IM_COL32_A_MASK) == 0) return; // FIXME-OPT: This is wasting draw calls. const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back(); if (push_texture_id) PushTextureID(user_texture_id); PrimReserve(6, 4); PrimRectUV(a, b, uv0, uv1, col); if (push_texture_id) PopTextureID(); } //----------------------------------------------------------------------------- // ImDrawData //----------------------------------------------------------------------------- // 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! void ImDrawData::DeIndexAllBuffers() { ImVector new_vtx_buffer; TotalVtxCount = TotalIdxCount = 0; for (int i = 0; i < CmdListsCount; i++) { ImDrawList* cmd_list = CmdLists[i]; if (cmd_list->IdxBuffer.empty()) continue; new_vtx_buffer.resize(cmd_list->IdxBuffer.Size); for (int j = 0; j < cmd_list->IdxBuffer.Size; j++) new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]]; cmd_list->VtxBuffer.swap(new_vtx_buffer); cmd_list->IdxBuffer.resize(0); TotalVtxCount += cmd_list->VtxBuffer.Size; } } // 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. void ImDrawData::ScaleClipRects(const ImVec2& scale) { for (int i = 0; i < CmdListsCount; i++) { ImDrawList* cmd_list = CmdLists[i]; for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++) { ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i]; cmd->ClipRect = ImVec4(cmd->ClipRect.x * scale.x, cmd->ClipRect.y * scale.y, cmd->ClipRect.z * scale.x, cmd->ClipRect.w * scale.y); } } } //----------------------------------------------------------------------------- // ImFontAtlas //----------------------------------------------------------------------------- ImFontConfig::ImFontConfig() { FontData = NULL; FontDataSize = 0; FontDataOwnedByAtlas = true; FontNo = 0; SizePixels = 0.0f; OversampleH = 3; OversampleV = 1; PixelSnapH = false; GlyphExtraSpacing = ImVec2(0.0f, 0.0f); GlyphRanges = NULL; MergeMode = false; MergeGlyphCenterV = false; DstFont = NULL; memset(Name, 0, sizeof(Name)); } ImFontAtlas::ImFontAtlas() { TexID = NULL; TexPixelsAlpha8 = NULL; TexPixelsRGBA32 = NULL; TexWidth = TexHeight = TexDesiredWidth = 0; TexUvWhitePixel = ImVec2(0, 0); } ImFontAtlas::~ImFontAtlas() { Clear(); } void ImFontAtlas::ClearInputData() { for (int i = 0; i < ConfigData.Size; i++) if (ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas) { ImGui::MemFree(ConfigData[i].FontData); ConfigData[i].FontData = NULL; } // When clearing this we lose access to the font name and other information used to build the font. for (int i = 0; i < Fonts.Size; i++) if (Fonts[i]->ConfigData >= ConfigData.Data && Fonts[i]->ConfigData < ConfigData.Data + ConfigData.Size) { Fonts[i]->ConfigData = NULL; Fonts[i]->ConfigDataCount = 0; } ConfigData.clear(); } void ImFontAtlas::ClearTexData() { if (TexPixelsAlpha8) ImGui::MemFree(TexPixelsAlpha8); if (TexPixelsRGBA32) ImGui::MemFree(TexPixelsRGBA32); TexPixelsAlpha8 = NULL; TexPixelsRGBA32 = NULL; } void ImFontAtlas::ClearFonts() { for (int i = 0; i < Fonts.Size; i++) { Fonts[i]->~ImFont(); ImGui::MemFree(Fonts[i]); } Fonts.clear(); } void ImFontAtlas::Clear() { ClearInputData(); ClearTexData(); ClearFonts(); } void ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel) { // Build atlas on demand if (TexPixelsAlpha8 == NULL) { if (ConfigData.empty()) AddFontDefault(); Build(); } *out_pixels = TexPixelsAlpha8; if (out_width) *out_width = TexWidth; if (out_height) *out_height = TexHeight; if (out_bytes_per_pixel) *out_bytes_per_pixel = 1; } void ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel) { // Convert to RGBA32 format on demand // Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp if (!TexPixelsRGBA32) { unsigned char* pixels; GetTexDataAsAlpha8(&pixels, NULL, NULL); TexPixelsRGBA32 = (unsigned int*)ImGui::MemAlloc((size_t)(TexWidth * TexHeight * 4)); const unsigned char* src = pixels; unsigned int* dst = TexPixelsRGBA32; for (int n = TexWidth * TexHeight; n > 0; n--) *dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++)); } *out_pixels = (unsigned char*)TexPixelsRGBA32; if (out_width) *out_width = TexWidth; if (out_height) *out_height = TexHeight; if (out_bytes_per_pixel) *out_bytes_per_pixel = 4; } ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg) { IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0); IM_ASSERT(font_cfg->SizePixels > 0.0f); // Create new font if (!font_cfg->MergeMode) { ImFont* font = (ImFont*)ImGui::MemAlloc(sizeof(ImFont)); IM_PLACEMENT_NEW(font) ImFont(); Fonts.push_back(font); } ConfigData.push_back(*font_cfg); ImFontConfig& new_font_cfg = ConfigData.back(); if (!new_font_cfg.DstFont) new_font_cfg.DstFont = Fonts.back(); if (!new_font_cfg.FontDataOwnedByAtlas) { new_font_cfg.FontData = ImGui::MemAlloc(new_font_cfg.FontDataSize); new_font_cfg.FontDataOwnedByAtlas = true; memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize); } // Invalidate texture ClearTexData(); return new_font_cfg.DstFont; } // Default font TTF is compressed with stb_compress then base85 encoded (see extra_fonts/binary_to_compressed_c.cpp for encoder) static unsigned int stb_decompress_length(unsigned char *input); static unsigned int stb_decompress(unsigned char *output, unsigned char *i, unsigned int length); static const char* GetDefaultCompressedFontDataTTFBase85(); static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; } static void Decode85(const unsigned char* src, unsigned char* dst) { while (*src) { unsigned int tmp = Decode85Byte(src[0]) + 85*(Decode85Byte(src[1]) + 85*(Decode85Byte(src[2]) + 85*(Decode85Byte(src[3]) + 85*Decode85Byte(src[4])))); 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. src += 5; dst += 4; } } // Load embedded ProggyClean.ttf at size 13, disable oversampling ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template) { ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); if (!font_cfg_template) { font_cfg.OversampleH = font_cfg.OversampleV = 1; font_cfg.PixelSnapH = true; } if (font_cfg.Name[0] == '\0') strcpy(font_cfg.Name, "ProggyClean.ttf, 13px"); const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85(); ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, 13.0f, &font_cfg, GetGlyphRangesDefault()); return font; } ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges) { int data_size = 0; void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0); if (!data) { IM_ASSERT(0); // Could not load file. return NULL; } ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); if (font_cfg.Name[0] == '\0') { // Store a short copy of filename into into the font name for convenience const char* p; for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {} snprintf(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels); } return AddFontFromMemoryTTF(data, data_size, size_pixels, &font_cfg, glyph_ranges); } // NBM Transfer ownership of 'ttf_data' to ImFontAtlas, unless font_cfg_template->FontDataOwnedByAtlas == false. Owned TTF buffer will be deleted after Build(). ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges) { ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); IM_ASSERT(font_cfg.FontData == NULL); font_cfg.FontData = ttf_data; font_cfg.FontDataSize = ttf_size; font_cfg.SizePixels = size_pixels; if (glyph_ranges) font_cfg.GlyphRanges = glyph_ranges; return AddFont(&font_cfg); } ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges) { const unsigned int buf_decompressed_size = stb_decompress_length((unsigned char*)compressed_ttf_data); unsigned char* buf_decompressed_data = (unsigned char *)ImGui::MemAlloc(buf_decompressed_size); stb_decompress(buf_decompressed_data, (unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size); ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); IM_ASSERT(font_cfg.FontData == NULL); font_cfg.FontDataOwnedByAtlas = true; return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges); } ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges) { int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4; void* compressed_ttf = ImGui::MemAlloc((size_t)compressed_ttf_size); Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf); ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges); ImGui::MemFree(compressed_ttf); return font; } bool ImFontAtlas::Build() { IM_ASSERT(ConfigData.Size > 0); TexID = NULL; TexWidth = TexHeight = 0; TexUvWhitePixel = ImVec2(0, 0); ClearTexData(); struct ImFontTempBuildData { stbtt_fontinfo FontInfo; stbrp_rect* Rects; stbtt_pack_range* Ranges; int RangesCount; }; ImFontTempBuildData* tmp_array = (ImFontTempBuildData*)ImGui::MemAlloc((size_t)ConfigData.Size * sizeof(ImFontTempBuildData)); // Initialize font information early (so we can error without any cleanup) + count glyphs int total_glyph_count = 0; int total_glyph_range_count = 0; for (int input_i = 0; input_i < ConfigData.Size; input_i++) { ImFontConfig& cfg = ConfigData[input_i]; ImFontTempBuildData& tmp = tmp_array[input_i]; IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == this)); const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo); IM_ASSERT(font_offset >= 0); if (!stbtt_InitFont(&tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset)) return false; // Count glyphs if (!cfg.GlyphRanges) cfg.GlyphRanges = GetGlyphRangesDefault(); for (const ImWchar* in_range = cfg.GlyphRanges; in_range[0] && in_range[1]; in_range += 2) { total_glyph_count += (in_range[1] - in_range[0]) + 1; total_glyph_range_count++; } } // 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. // After packing is done, width shouldn't matter much, but some API/GPU have texture size limitations and increasing width can decrease height. TexWidth = (TexDesiredWidth > 0) ? TexDesiredWidth : (total_glyph_count > 4000) ? 4096 : (total_glyph_count > 2000) ? 2048 : (total_glyph_count > 1000) ? 1024 : 512; TexHeight = 0; const int max_tex_height = 1024*32; stbtt_pack_context spc; stbtt_PackBegin(&spc, NULL, TexWidth, max_tex_height, 0, 1, NULL); // Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values). ImVector extra_rects; RenderCustomTexData(0, &extra_rects); stbtt_PackSetOversampling(&spc, 1, 1); stbrp_pack_rects((stbrp_context*)spc.pack_info, &extra_rects[0], extra_rects.Size); for (int i = 0; i < extra_rects.Size; i++) if (extra_rects[i].was_packed) TexHeight = ImMax(TexHeight, extra_rects[i].y + extra_rects[i].h); // Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0) int buf_packedchars_n = 0, buf_rects_n = 0, buf_ranges_n = 0; stbtt_packedchar* buf_packedchars = (stbtt_packedchar*)ImGui::MemAlloc(total_glyph_count * sizeof(stbtt_packedchar)); stbrp_rect* buf_rects = (stbrp_rect*)ImGui::MemAlloc(total_glyph_count * sizeof(stbrp_rect)); stbtt_pack_range* buf_ranges = (stbtt_pack_range*)ImGui::MemAlloc(total_glyph_range_count * sizeof(stbtt_pack_range)); memset(buf_packedchars, 0, total_glyph_count * sizeof(stbtt_packedchar)); memset(buf_rects, 0, total_glyph_count * sizeof(stbrp_rect)); // Unnecessary but let's clear this for the sake of sanity. memset(buf_ranges, 0, total_glyph_range_count * sizeof(stbtt_pack_range)); // First font pass: pack all glyphs (no rendering at this point, we are working with rectangles in an infinitely tall texture at this point) for (int input_i = 0; input_i < ConfigData.Size; input_i++) { ImFontConfig& cfg = ConfigData[input_i]; ImFontTempBuildData& tmp = tmp_array[input_i]; // Setup ranges int glyph_count = 0; int glyph_ranges_count = 0; for (const ImWchar* in_range = cfg.GlyphRanges; in_range[0] && in_range[1]; in_range += 2) { glyph_count += (in_range[1] - in_range[0]) + 1; glyph_ranges_count++; } tmp.Ranges = buf_ranges + buf_ranges_n; tmp.RangesCount = glyph_ranges_count; buf_ranges_n += glyph_ranges_count; for (int i = 0; i < glyph_ranges_count; i++) { const ImWchar* in_range = &cfg.GlyphRanges[i * 2]; stbtt_pack_range& range = tmp.Ranges[i]; range.font_size = cfg.SizePixels; range.first_unicode_codepoint_in_range = in_range[0]; range.num_chars = (in_range[1] - in_range[0]) + 1; range.chardata_for_range = buf_packedchars + buf_packedchars_n; buf_packedchars_n += range.num_chars; } // Pack tmp.Rects = buf_rects + buf_rects_n; buf_rects_n += glyph_count; stbtt_PackSetOversampling(&spc, cfg.OversampleH, cfg.OversampleV); int n = stbtt_PackFontRangesGatherRects(&spc, &tmp.FontInfo, tmp.Ranges, tmp.RangesCount, tmp.Rects); stbrp_pack_rects((stbrp_context*)spc.pack_info, tmp.Rects, n); // Extend texture height for (int i = 0; i < n; i++) if (tmp.Rects[i].was_packed) TexHeight = ImMax(TexHeight, tmp.Rects[i].y + tmp.Rects[i].h); } IM_ASSERT(buf_rects_n == total_glyph_count); IM_ASSERT(buf_packedchars_n == total_glyph_count); IM_ASSERT(buf_ranges_n == total_glyph_range_count); // Create texture TexHeight = ImUpperPowerOfTwo(TexHeight); TexPixelsAlpha8 = (unsigned char*)ImGui::MemAlloc(TexWidth * TexHeight); memset(TexPixelsAlpha8, 0, TexWidth * TexHeight); spc.pixels = TexPixelsAlpha8; spc.height = TexHeight; // Second pass: render characters for (int input_i = 0; input_i < ConfigData.Size; input_i++) { ImFontConfig& cfg = ConfigData[input_i]; ImFontTempBuildData& tmp = tmp_array[input_i]; stbtt_PackSetOversampling(&spc, cfg.OversampleH, cfg.OversampleV); stbtt_PackFontRangesRenderIntoRects(&spc, &tmp.FontInfo, tmp.Ranges, tmp.RangesCount, tmp.Rects); tmp.Rects = NULL; } // End packing stbtt_PackEnd(&spc); ImGui::MemFree(buf_rects); buf_rects = NULL; // Third pass: setup ImFont and glyphs for runtime for (int input_i = 0; input_i < ConfigData.Size; input_i++) { ImFontConfig& cfg = ConfigData[input_i]; ImFontTempBuildData& tmp = tmp_array[input_i]; ImFont* dst_font = cfg.DstFont; float font_scale = stbtt_ScaleForPixelHeight(&tmp.FontInfo, cfg.SizePixels); int unscaled_ascent, unscaled_descent, unscaled_line_gap; stbtt_GetFontVMetrics(&tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap); float ascent = unscaled_ascent * font_scale; float descent = unscaled_descent * font_scale; if (!cfg.MergeMode) { dst_font->ContainerAtlas = this; dst_font->ConfigData = &cfg; dst_font->ConfigDataCount = 0; dst_font->FontSize = cfg.SizePixels; dst_font->Ascent = ascent; dst_font->Descent = descent; dst_font->Glyphs.resize(0); } dst_font->ConfigDataCount++; float off_y = (cfg.MergeMode && cfg.MergeGlyphCenterV) ? (ascent - dst_font->Ascent) * 0.5f : 0.0f; dst_font->FallbackGlyph = NULL; // Always clear fallback so FindGlyph can return NULL. It will be set again in BuildLookupTable() for (int i = 0; i < tmp.RangesCount; i++) { stbtt_pack_range& range = tmp.Ranges[i]; for (int char_idx = 0; char_idx < range.num_chars; char_idx += 1) { const stbtt_packedchar& pc = range.chardata_for_range[char_idx]; if (!pc.x0 && !pc.x1 && !pc.y0 && !pc.y1) continue; const int codepoint = range.first_unicode_codepoint_in_range + char_idx; if (cfg.MergeMode && dst_font->FindGlyph((unsigned short)codepoint)) continue; stbtt_aligned_quad q; float dummy_x = 0.0f, dummy_y = 0.0f; stbtt_GetPackedQuad(range.chardata_for_range, TexWidth, TexHeight, char_idx, &dummy_x, &dummy_y, &q, 0); dst_font->Glyphs.resize(dst_font->Glyphs.Size + 1); ImFont::Glyph& glyph = dst_font->Glyphs.back(); glyph.Codepoint = (ImWchar)codepoint; glyph.X0 = q.x0; glyph.Y0 = q.y0; glyph.X1 = q.x1; glyph.Y1 = q.y1; glyph.U0 = q.s0; glyph.V0 = q.t0; glyph.U1 = q.s1; glyph.V1 = q.t1; glyph.Y0 += (float)(int)(dst_font->Ascent + off_y + 0.5f); glyph.Y1 += (float)(int)(dst_font->Ascent + off_y + 0.5f); glyph.XAdvance = (pc.xadvance + cfg.GlyphExtraSpacing.x); // Bake spacing into XAdvance if (cfg.PixelSnapH) glyph.XAdvance = (float)(int)(glyph.XAdvance + 0.5f); } } cfg.DstFont->BuildLookupTable(); } // Cleanup temporaries ImGui::MemFree(buf_packedchars); ImGui::MemFree(buf_ranges); ImGui::MemFree(tmp_array); // Render into our custom data block RenderCustomTexData(1, &extra_rects); return true; } void ImFontAtlas::RenderCustomTexData(int pass, void* p_rects) { // A work of art lies ahead! (. = white layer, X = black layer, others are blank) // The white texels on the top left are the ones we'll use everywhere in ImGui to render filled shapes. const int TEX_DATA_W = 90; const int TEX_DATA_H = 27; const char texture_data[TEX_DATA_W*TEX_DATA_H+1] = { "..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX" "..- -X.....X- X.X - X.X -X.....X - X.....X" "--- -XXX.XXX- X...X - X...X -X....X - X....X" "X - X.X - X.....X - X.....X -X...X - X...X" "XX - X.X -X.......X- X.......X -X..X.X - X.X..X" "X.X - X.X -XXXX.XXXX- XXXX.XXXX -X.X X.X - X.X X.X" "X..X - X.X - X.X - X.X -XX X.X - X.X XX" "X...X - X.X - X.X - XX X.X XX - X.X - X.X " "X....X - X.X - X.X - X.X X.X X.X - X.X - X.X " "X.....X - X.X - X.X - X..X X.X X..X - X.X - X.X " "X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-XX X.X " "X.......X - X.X - X.X -X.....................X- X.X X.X-X.X X.X " "X........X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X..X-X..X.X " "X.........X -XXX.XXX- X.X - X..X X.X X..X - X...X-X...X " "X..........X-X.....X- X.X - X.X X.X X.X - X....X-X....X " "X......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X " "X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX " "X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------" "X.X X..X - -X.......X- X.......X - XX XX - " "XX X..X - - X.....X - X.....X - X.X X.X - " " X..X - X...X - X...X - X..X X..X - " " XX - X.X - X.X - X...XXXXXXXXXXXXX...X - " "------------ - X - X -X.....................X- " " ----------------------------------- X...XXXXXXXXXXXXX...X - " " - X..X X..X - " " - X.X X.X - " " - XX XX - " }; ImVector& rects = *(ImVector*)p_rects; if (pass == 0) { // Request rectangles stbrp_rect r; memset(&r, 0, sizeof(r)); r.w = (TEX_DATA_W*2)+1; r.h = TEX_DATA_H+1; rects.push_back(r); } else if (pass == 1) { // Render/copy pixels const stbrp_rect& r = rects[0]; for (int y = 0, n = 0; y < TEX_DATA_H; y++) for (int x = 0; x < TEX_DATA_W; x++, n++) { const int offset0 = (int)(r.x + x) + (int)(r.y + y) * TexWidth; const int offset1 = offset0 + 1 + TEX_DATA_W; TexPixelsAlpha8[offset0] = texture_data[n] == '.' ? 0xFF : 0x00; TexPixelsAlpha8[offset1] = texture_data[n] == 'X' ? 0xFF : 0x00; } const ImVec2 tex_uv_scale(1.0f / TexWidth, 1.0f / TexHeight); TexUvWhitePixel = ImVec2((r.x + 0.5f) * tex_uv_scale.x, (r.y + 0.5f) * tex_uv_scale.y); // Setup mouse cursors const ImVec2 cursor_datas[ImGuiMouseCursor_Count_][3] = { // Pos ........ Size ......... Offset ...... { ImVec2(0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow { ImVec2(13,0), ImVec2(7,16), ImVec2( 4, 8) }, // ImGuiMouseCursor_TextInput { ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_Move { ImVec2(21,0), ImVec2( 9,23), ImVec2( 5,11) }, // ImGuiMouseCursor_ResizeNS { ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 5) }, // ImGuiMouseCursor_ResizeEW { ImVec2(73,0), ImVec2(17,17), ImVec2( 9, 9) }, // ImGuiMouseCursor_ResizeNESW { ImVec2(55,0), ImVec2(17,17), ImVec2( 9, 9) }, // ImGuiMouseCursor_ResizeNWSE }; for (int type = 0; type < ImGuiMouseCursor_Count_; type++) { ImGuiMouseCursorData& cursor_data = GImGui->MouseCursorData[type]; ImVec2 pos = cursor_datas[type][0] + ImVec2((float)r.x, (float)r.y); const ImVec2 size = cursor_datas[type][1]; cursor_data.Type = type; cursor_data.Size = size; cursor_data.HotOffset = cursor_datas[type][2]; cursor_data.TexUvMin[0] = (pos) * tex_uv_scale; cursor_data.TexUvMax[0] = (pos + size) * tex_uv_scale; pos.x += TEX_DATA_W+1; cursor_data.TexUvMin[1] = (pos) * tex_uv_scale; cursor_data.TexUvMax[1] = (pos + size) * tex_uv_scale; } } } // Retrieve list of range (2 int per range, values are inclusive) const ImWchar* ImFontAtlas::GetGlyphRangesDefault() { static const ImWchar ranges[] = { 0x0020, 0x00FF, // Basic Latin + Latin Supplement 0, }; return &ranges[0]; } const ImWchar* ImFontAtlas::GetGlyphRangesKorean() { static const ImWchar ranges[] = { 0x0020, 0x00FF, // Basic Latin + Latin Supplement 0x3131, 0x3163, // Korean alphabets 0xAC00, 0xD79D, // Korean characters 0, }; return &ranges[0]; } const ImWchar* ImFontAtlas::GetGlyphRangesChinese() { static const ImWchar ranges[] = { 0x0020, 0x00FF, // Basic Latin + Latin Supplement 0x3000, 0x30FF, // Punctuations, Hiragana, Katakana 0x31F0, 0x31FF, // Katakana Phonetic Extensions 0xFF00, 0xFFEF, // Half-width characters 0x4e00, 0x9FAF, // CJK Ideograms 0, }; return &ranges[0]; } const ImWchar* ImFontAtlas::GetGlyphRangesJapanese() { // Store the 1946 ideograms code points as successive offsets from the initial unicode codepoint 0x4E00. Each offset has an implicit +1. // This encoding helps us reduce the source code size. static const short offsets_from_0x4E00[] = { -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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, }; static ImWchar base_ranges[] = { 0x0020, 0x00FF, // Basic Latin + Latin Supplement 0x3000, 0x30FF, // Punctuations, Hiragana, Katakana 0x31F0, 0x31FF, // Katakana Phonetic Extensions 0xFF00, 0xFFEF, // Half-width characters }; static bool full_ranges_unpacked = false; static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(offsets_from_0x4E00)*2 + 1]; if (!full_ranges_unpacked) { // Unpack int codepoint = 0x4e00; memcpy(full_ranges, base_ranges, sizeof(base_ranges)); ImWchar* dst = full_ranges + IM_ARRAYSIZE(base_ranges);; for (int n = 0; n < IM_ARRAYSIZE(offsets_from_0x4E00); n++, dst += 2) dst[0] = dst[1] = (ImWchar)(codepoint += (offsets_from_0x4E00[n] + 1)); dst[0] = 0; full_ranges_unpacked = true; } return &full_ranges[0]; } const ImWchar* ImFontAtlas::GetGlyphRangesCyrillic() { static const ImWchar ranges[] = { 0x0020, 0x00FF, // Basic Latin + Latin Supplement 0x0400, 0x052F, // Cyrillic + Cyrillic Supplement 0x2DE0, 0x2DFF, // Cyrillic Extended-A 0xA640, 0xA69F, // Cyrillic Extended-B 0, }; return &ranges[0]; } const ImWchar* ImFontAtlas::GetGlyphRangesThai() { static const ImWchar ranges[] = { 0x0020, 0x00FF, // Basic Latin 0x0E00, 0x0E7F, // Thai 0, }; return &ranges[0]; } //----------------------------------------------------------------------------- // ImFont //----------------------------------------------------------------------------- ImFont::ImFont() { Scale = 1.0f; FallbackChar = (ImWchar)'?'; Clear(); } ImFont::~ImFont() { // Invalidate active font so that the user gets a clear crash instead of a dangling pointer. // If you want to delete fonts you need to do it between Render() and NewFrame(). // FIXME-CLEANUP /* ImGuiContext& g = *GImGui; if (g.Font == this) g.Font = NULL; */ Clear(); } void ImFont::Clear() { FontSize = 0.0f; DisplayOffset = ImVec2(0.0f, 1.0f); ConfigData = NULL; ConfigDataCount = 0; Ascent = Descent = 0.0f; ContainerAtlas = NULL; Glyphs.clear(); FallbackGlyph = NULL; FallbackXAdvance = 0.0f; IndexXAdvance.clear(); IndexLookup.clear(); } void ImFont::BuildLookupTable() { int max_codepoint = 0; for (int i = 0; i != Glyphs.Size; i++) max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint); IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved IndexXAdvance.clear(); IndexLookup.clear(); GrowIndex(max_codepoint + 1); for (int i = 0; i < Glyphs.Size; i++) { int codepoint = (int)Glyphs[i].Codepoint; IndexXAdvance[codepoint] = Glyphs[i].XAdvance; IndexLookup[codepoint] = (unsigned short)i; } // Create a glyph to handle TAB // FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?) if (FindGlyph((unsigned short)' ')) { if (Glyphs.back().Codepoint != '\t') // So we can call this function multiple times Glyphs.resize(Glyphs.Size + 1); ImFont::Glyph& tab_glyph = Glyphs.back(); tab_glyph = *FindGlyph((unsigned short)' '); tab_glyph.Codepoint = '\t'; tab_glyph.XAdvance *= 4; IndexXAdvance[(int)tab_glyph.Codepoint] = (float)tab_glyph.XAdvance; IndexLookup[(int)tab_glyph.Codepoint] = (unsigned short)(Glyphs.Size-1); } FallbackGlyph = NULL; FallbackGlyph = FindGlyph(FallbackChar); FallbackXAdvance = FallbackGlyph ? FallbackGlyph->XAdvance : 0.0f; for (int i = 0; i < max_codepoint + 1; i++) if (IndexXAdvance[i] < 0.0f) IndexXAdvance[i] = FallbackXAdvance; } void ImFont::SetFallbackChar(ImWchar c) { FallbackChar = c; BuildLookupTable(); } void ImFont::GrowIndex(int new_size) { IM_ASSERT(IndexXAdvance.Size == IndexLookup.Size); int old_size = IndexLookup.Size; if (new_size <= old_size) return; IndexXAdvance.resize(new_size); IndexLookup.resize(new_size); for (int i = old_size; i < new_size; i++) { IndexXAdvance[i] = -1.0f; IndexLookup[i] = (unsigned short)-1; } } void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst) { IM_ASSERT(IndexLookup.Size > 0); // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function. int index_size = IndexLookup.Size; if (dst < index_size && IndexLookup.Data[dst] == (unsigned short)-1 && !overwrite_dst) // 'dst' already exists return; if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op return; GrowIndex(dst + 1); IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (unsigned short)-1; IndexXAdvance[dst] = (src < index_size) ? IndexXAdvance.Data[src] : 1.0f; } const ImFont::Glyph* ImFont::FindGlyph(unsigned short c) const { if (c < IndexLookup.Size) { const unsigned short i = IndexLookup[c]; if (i != (unsigned short)-1) return &Glyphs.Data[i]; } return FallbackGlyph; } const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const { // Simple word-wrapping for English, not full-featured. Please submit failing cases! // 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.) // For references, possible wrap point marked with ^ // "aaa bbb, ccc,ddd. eee fff. ggg!" // ^ ^ ^ ^ ^__ ^ ^ // List of hardcoded separators: .,;!?'" // Skip extra blanks after a line returns (that includes not counting them in width computation) // e.g. "Hello world" --> "Hello" "World" // Cut words that cannot possibly fit within one line. // e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish" float line_width = 0.0f; float word_width = 0.0f; float blank_width = 0.0f; const char* word_end = text; const char* prev_word_end = NULL; bool inside_word = true; const char* s = text; while (s < text_end) { unsigned int c = (unsigned int)*s; const char* next_s; if (c < 0x80) next_s = s + 1; else next_s = s + ImTextCharFromUtf8(&c, s, text_end); if (c == 0) break; if (c < 32) { if (c == '\n') { line_width = word_width = blank_width = 0.0f; inside_word = true; s = next_s; continue; } if (c == '\r') { s = next_s; continue; } } const float char_width = ((int)c < IndexXAdvance.Size ? IndexXAdvance[(int)c] : FallbackXAdvance) * scale; if (ImCharIsSpace(c)) { if (inside_word) { line_width += blank_width; blank_width = 0.0f; word_end = s; } blank_width += char_width; inside_word = false; } else { word_width += char_width; if (inside_word) { word_end = next_s; } else { prev_word_end = word_end; line_width += word_width + blank_width; word_width = blank_width = 0.0f; } // Allow wrapping after punctuation. inside_word = !(c == '.' || c == ',' || c == ';' || c == '!' || c == '?' || c == '\"'); } // We ignore blank width at the end of the line (they can be skipped) if (line_width + word_width >= wrap_width) { // Words that cannot possibly fit within an entire line will be cut anywhere. if (word_width < wrap_width) s = prev_word_end ? prev_word_end : word_end; break; } s = next_s; } return s; } ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining) const { if (!text_end) text_end = text_begin + strlen(text_begin); // FIXME-OPT: Need to avoid this. const float line_height = size; const float scale = size / FontSize; ImVec2 text_size = ImVec2(0,0); float line_width = 0.0f; const bool word_wrap_enabled = (wrap_width > 0.0f); const char* word_wrap_eol = NULL; const char* s = text_begin; while (s < text_end) { if (word_wrap_enabled) { // 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. if (!word_wrap_eol) { word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width); if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity. 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 } if (s >= word_wrap_eol) { if (text_size.x < line_width) text_size.x = line_width; text_size.y += line_height; line_width = 0.0f; word_wrap_eol = NULL; // Wrapping skips upcoming blanks while (s < text_end) { const char c = *s; if (ImCharIsSpace(c)) { s++; } else if (c == '\n') { s++; break; } else { break; } } continue; } } // Decode and advance source const char* prev_s = s; unsigned int c = (unsigned int)*s; if (c < 0x80) { s += 1; } else { s += ImTextCharFromUtf8(&c, s, text_end); if (c == 0) // Malformed UTF-8? break; } if (c < 32) { if (c == '\n') { text_size.x = ImMax(text_size.x, line_width); text_size.y += line_height; line_width = 0.0f; continue; } if (c == '\r') continue; } const float char_width = ((int)c < IndexXAdvance.Size ? IndexXAdvance[(int)c] : FallbackXAdvance) * scale; if (line_width + char_width >= max_width) { s = prev_s; break; } line_width += char_width; } if (text_size.x < line_width) text_size.x = line_width; if (line_width > 0 || text_size.y == 0.0f) text_size.y += line_height; if (remaining) *remaining = s; return text_size; } void ImFont::RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, unsigned short c) const { if (c == ' ' || c == '\t' || c == '\n' || c == '\r') // Match behavior of RenderText(), those 4 codepoints are hard-coded. return; if (const Glyph* glyph = FindGlyph(c)) { float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f; pos.x = (float)(int)pos.x + DisplayOffset.x; pos.y = (float)(int)pos.y + DisplayOffset.y; ImVec2 pos_tl(pos.x + glyph->X0 * scale, pos.y + glyph->Y0 * scale); ImVec2 pos_br(pos.x + glyph->X1 * scale, pos.y + glyph->Y1 * scale); draw_list->PrimReserve(6, 4); draw_list->PrimRectUV(pos_tl, pos_br, ImVec2(glyph->U0, glyph->V0), ImVec2(glyph->U1, glyph->V1), col); } } 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 { if (!text_end) text_end = text_begin + strlen(text_begin); // ImGui functions generally already provides a valid text_end, so this is merely to handle direct calls. // Align to be pixel perfect pos.x = (float)(int)pos.x + DisplayOffset.x; pos.y = (float)(int)pos.y + DisplayOffset.y; float x = pos.x; float y = pos.y; if (y > clip_rect.w) return; const float scale = size / FontSize; const float line_height = FontSize * scale; const bool word_wrap_enabled = (wrap_width > 0.0f); const char* word_wrap_eol = NULL; // Skip non-visible lines const char* s = text_begin; if (!word_wrap_enabled && y + line_height < clip_rect.y) while (s < text_end && *s != '\n') // Fast-forward to next line s++; // Reserve vertices for remaining worse case (over-reserving is useful and easily amortized) const int vtx_count_max = (int)(text_end - s) * 4; const int idx_count_max = (int)(text_end - s) * 6; const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max; draw_list->PrimReserve(idx_count_max, vtx_count_max); ImDrawVert* vtx_write = draw_list->_VtxWritePtr; ImDrawIdx* idx_write = draw_list->_IdxWritePtr; unsigned int vtx_current_idx = draw_list->_VtxCurrentIdx; while (s < text_end) { if (word_wrap_enabled) { // 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. if (!word_wrap_eol) { word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - pos.x)); if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity. 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 } if (s >= word_wrap_eol) { x = pos.x; y += line_height; word_wrap_eol = NULL; // Wrapping skips upcoming blanks while (s < text_end) { const char c = *s; if (ImCharIsSpace(c)) { s++; } else if (c == '\n') { s++; break; } else { break; } } continue; } } // Decode and advance source unsigned int c = (unsigned int)*s; if (c < 0x80) { s += 1; } else { s += ImTextCharFromUtf8(&c, s, text_end); if (c == 0) // Malformed UTF-8? break; } if (c < 32) { if (c == '\n') { x = pos.x; y += line_height; if (y > clip_rect.w) break; if (!word_wrap_enabled && y + line_height < clip_rect.y) while (s < text_end && *s != '\n') // Fast-forward to next line s++; continue; } if (c == '\r') continue; } float char_width = 0.0f; if (const Glyph* glyph = FindGlyph((unsigned short)c)) { char_width = glyph->XAdvance * scale; // Arbitrarily assume that both space and tabs are empty glyphs as an optimization if (c != ' ' && c != '\t') { // 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 float x1 = x + glyph->X0 * scale; float x2 = x + glyph->X1 * scale; float y1 = y + glyph->Y0 * scale; float y2 = y + glyph->Y1 * scale; if (x1 <= clip_rect.z && x2 >= clip_rect.x) { // Render a character float u1 = glyph->U0; float v1 = glyph->V0; float u2 = glyph->U1; float v2 = glyph->V1; // CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads. if (cpu_fine_clip) { if (x1 < clip_rect.x) { u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1); x1 = clip_rect.x; } if (y1 < clip_rect.y) { v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1); y1 = clip_rect.y; } if (x2 > clip_rect.z) { u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1); x2 = clip_rect.z; } if (y2 > clip_rect.w) { v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1); y2 = clip_rect.w; } if (y1 >= y2) { x += char_width; continue; } } // We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug build. // Inlined here: { idx_write[0] = (ImDrawIdx)(vtx_current_idx); idx_write[1] = (ImDrawIdx)(vtx_current_idx+1); idx_write[2] = (ImDrawIdx)(vtx_current_idx+2); idx_write[3] = (ImDrawIdx)(vtx_current_idx); idx_write[4] = (ImDrawIdx)(vtx_current_idx+2); idx_write[5] = (ImDrawIdx)(vtx_current_idx+3); 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; 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; 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; 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; vtx_write += 4; vtx_current_idx += 4; idx_write += 6; } } } } x += char_width; } // Give back unused vertices draw_list->VtxBuffer.resize((int)(vtx_write - draw_list->VtxBuffer.Data)); draw_list->IdxBuffer.resize((int)(idx_write - draw_list->IdxBuffer.Data)); draw_list->CmdBuffer[draw_list->CmdBuffer.Size-1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size); draw_list->_VtxWritePtr = vtx_write; draw_list->_IdxWritePtr = idx_write; draw_list->_VtxCurrentIdx = (unsigned int)draw_list->VtxBuffer.Size; } //----------------------------------------------------------------------------- // DEFAULT FONT DATA //----------------------------------------------------------------------------- // Compressed with stb_compress() then converted to a C array. // Use the program in extra_fonts/binary_to_compressed_c.cpp to create the array from a TTF file. // Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h //----------------------------------------------------------------------------- static unsigned int stb_decompress_length(unsigned char *input) { return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11]; } static unsigned char *stb__barrier, *stb__barrier2, *stb__barrier3, *stb__barrier4; static unsigned char *stb__dout; static void stb__match(unsigned char *data, unsigned int length) { // INVERSE of memmove... write each byte before copying the next... IM_ASSERT (stb__dout + length <= stb__barrier); if (stb__dout + length > stb__barrier) { stb__dout += length; return; } if (data < stb__barrier4) { stb__dout = stb__barrier+1; return; } while (length--) *stb__dout++ = *data++; } static void stb__lit(unsigned char *data, unsigned int length) { IM_ASSERT (stb__dout + length <= stb__barrier); if (stb__dout + length > stb__barrier) { stb__dout += length; return; } if (data < stb__barrier2) { stb__dout = stb__barrier+1; return; } memcpy(stb__dout, data, length); stb__dout += length; } #define stb__in2(x) ((i[x] << 8) + i[(x)+1]) #define stb__in3(x) ((i[x] << 16) + stb__in2((x)+1)) #define stb__in4(x) ((i[x] << 24) + stb__in3((x)+1)) static unsigned char *stb_decompress_token(unsigned char *i) { if (*i >= 0x20) { // use fewer if's for cases that expand small if (*i >= 0x80) stb__match(stb__dout-i[1]-1, i[0] - 0x80 + 1), i += 2; else if (*i >= 0x40) stb__match(stb__dout-(stb__in2(0) - 0x4000 + 1), i[2]+1), i += 3; else /* *i >= 0x20 */ stb__lit(i+1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1); } else { // more ifs for cases that expand large, since overhead is amortized if (*i >= 0x18) stb__match(stb__dout-(stb__in3(0) - 0x180000 + 1), i[3]+1), i += 4; else if (*i >= 0x10) stb__match(stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5; else if (*i >= 0x08) stb__lit(i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1); else if (*i == 0x07) stb__lit(i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1); else if (*i == 0x06) stb__match(stb__dout-(stb__in3(1)+1), i[4]+1), i += 5; else if (*i == 0x04) stb__match(stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6; } return i; } static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen) { const unsigned long ADLER_MOD = 65521; unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16; unsigned long blocklen, i; blocklen = buflen % 5552; while (buflen) { for (i=0; i + 7 < blocklen; i += 8) { s1 += buffer[0], s2 += s1; s1 += buffer[1], s2 += s1; s1 += buffer[2], s2 += s1; s1 += buffer[3], s2 += s1; s1 += buffer[4], s2 += s1; s1 += buffer[5], s2 += s1; s1 += buffer[6], s2 += s1; s1 += buffer[7], s2 += s1; buffer += 8; } for (; i < blocklen; ++i) s1 += *buffer++, s2 += s1; s1 %= ADLER_MOD, s2 %= ADLER_MOD; buflen -= blocklen; blocklen = 5552; } return (unsigned int)(s2 << 16) + (unsigned int)s1; } static unsigned int stb_decompress(unsigned char *output, unsigned char *i, unsigned int length) { unsigned int olen; if (stb__in4(0) != 0x57bC0000) return 0; if (stb__in4(4) != 0) return 0; // error! stream is > 4GB olen = stb_decompress_length(i); stb__barrier2 = i; stb__barrier3 = i+length; stb__barrier = output + olen; stb__barrier4 = output; i += 16; stb__dout = output; for (;;) { unsigned char *old_i = i; i = stb_decompress_token(i); if (i == old_i) { if (*i == 0x05 && i[1] == 0xfa) { IM_ASSERT(stb__dout == output + olen); if (stb__dout != output + olen) return 0; if (stb_adler32(1, output, olen) != (unsigned int) stb__in4(2)) return 0; return olen; } else { IM_ASSERT(0); /* NOTREACHED */ return 0; } } IM_ASSERT(stb__dout <= output + olen); if (stb__dout > output + olen) return 0; } } //----------------------------------------------------------------------------- // ProggyClean.ttf // Copyright (c) 2004, 2005 Tristan Grimmer // MIT license (see License.txt in http://www.upperbounds.net/download/ProggyClean.ttf.zip) // Download and more information at http://upperbounds.net //----------------------------------------------------------------------------- // File: 'ProggyClean.ttf' (41208 bytes) // Exported using binary_to_compressed_c.cpp //----------------------------------------------------------------------------- static const char proggy_clean_ttf_compressed_data_base85[11980+1] = "7])#######hV0qs'/###[),##/l:$#Q6>##5[n42>c-TH`->>#/e>11NNV=Bv(*:.F?uu#(gRU.o0XGH`$vhLG1hxt9?W`#,5LsCp#-i>.r$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/" "2*>]b(MC;$jPfY.;h^`IWM9Qo#t'X#(v#Y9w0#1D$CIf;W'#pWUPXOuxXuU(H9M(1=Ke$$'5F%)]0^#0X@U.a$FBjVQTSDgEKnIS7EM9>ZY9w0#L;>>#Mx&4Mvt//L[MkA#W@lK.N'[0#7RL_&#w+F%HtG9M#XL`N&.,GM4Pg;--VsM.M0rJfLH2eTM`*oJMHRC`N" "kfimM2J,W-jXS:)r0wK#@Fge$U>`w'N7G#$#fB#$E^$#:9:hk+eOe--6x)F7*E%?76%^GMHePW-Z5l'&GiF#$956:rS?dA#fiK:)Yr+`�j@'DbG&#^$PG.Ll+DNa&VZ>1i%h1S9u5o@YaaW$e+bROPOpxTO7Stwi1::iB1q)C_=dV26J;2,]7op$]uQr@_V7$q^%lQwtuHY]=DX,n3L#0PHDO4f9>dC@O>HBuKPpP*E,N+b3L#lpR/MrTEH.IAQk.a>D[.e;mc." 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proggy_clean_ttf_compressed_data_base85; }