mirror of
https://github.com/Drezil/imgui.git
synced 2024-12-24 00:26:36 +00:00
Loading TTF file with stb_truetype. Broke setup API slightly. Font baked, packed with space for custom data. Embeds compressed ProggyClean.
This commit is contained in:
ocornut
parent
dd8a7655f5
commit
b3a208901a
@ -68,8 +68,6 @@
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<ItemGroup>
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<ClInclude Include="..\..\imconfig.h" />
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<ClInclude Include="..\..\imgui.h" />
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<ClInclude Include="..\..\stb_textedit.h" />
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<ClInclude Include="..\shared\stb_image.h" />
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</ItemGroup>
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<ItemGroup>
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<ClCompile Include="..\..\imgui.cpp" />
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@ -15,12 +15,6 @@
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<ClInclude Include="..\..\imgui.h">
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<Filter>imgui</Filter>
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</ClInclude>
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<ClInclude Include="..\..\stb_textedit.h">
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<Filter>imgui</Filter>
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</ClInclude>
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<ClInclude Include="..\shared\stb_image.h">
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<Filter>sources</Filter>
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</ClInclude>
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</ItemGroup>
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<ItemGroup>
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<ClCompile Include="..\..\imgui.cpp">
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@ -1,9 +1,6 @@
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// ImGui - standalone example application for DirectX 11
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#include <windows.h>
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#define STB_IMAGE_STATIC
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#define STB_IMAGE_IMPLEMENTATION
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#include "../shared/stb_image.h" // for .png loading
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#include "../../imgui.h"
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// DirectX 11
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@ -290,8 +287,9 @@ HRESULT InitDeviceD3D(HWND hWnd)
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\
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float4 main(PS_INPUT input) : SV_Target\
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{\
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float4 out_col = texture0.Sample(sampler0, input.uv);\
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return input.col * out_col;\
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float4 out_col = input.col; \
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out_col.w *= texture0.Sample(sampler0, input.uv).w; \
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return out_col; \
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}";
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D3DCompile(pixelShader, strlen(pixelShader), NULL, NULL, NULL, "main", "ps_5_0", 0, 0, &g_pPixelShaderBlob, NULL);
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@ -427,23 +425,22 @@ void InitImGui()
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}
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}
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// Load font texture
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// Default font (embedded in code)
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const void* png_data;
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unsigned int png_size;
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ImGui::GetDefaultFontData(NULL, NULL, &png_data, &png_size);
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int tex_x, tex_y, tex_comp;
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void* tex_data = stbi_load_from_memory((const unsigned char*)png_data, (int)png_size, &tex_x, &tex_y, &tex_comp, 0);
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IM_ASSERT(tex_data != NULL);
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// Load font
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io.Font = new ImFont();
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io.Font->LoadDefault();
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//io.Font->LoadFromFileTTF("myfont.ttf", font_size_px, ImFont::GetGlyphRangesDefault());
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//io.Font->DisplayOffset.y += 0.0f;
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IM_ASSERT(io.Font->IsLoaded());
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// Copy font texture
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{
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D3D11_TEXTURE2D_DESC desc;
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ZeroMemory(&desc, sizeof(desc));
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desc.Width = tex_x;
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desc.Height = tex_y;
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desc.Width = io.Font->TexWidth;
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desc.Height = io.Font->TexHeight;
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desc.MipLevels = 1;
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desc.ArraySize = 1;
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desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
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desc.Format = DXGI_FORMAT_A8_UNORM;
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desc.SampleDesc.Count = 1;
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desc.Usage = D3D11_USAGE_DEFAULT;
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desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
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@ -451,15 +448,15 @@ void InitImGui()
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ID3D11Texture2D *pTexture = NULL;
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D3D11_SUBRESOURCE_DATA subResource;
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subResource.pSysMem = tex_data;
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subResource.SysMemPitch = tex_x * 4;
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subResource.pSysMem = io.Font->TexPixels;
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subResource.SysMemPitch = desc.Width * 1;
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subResource.SysMemSlicePitch = 0;
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g_pd3dDevice->CreateTexture2D(&desc, &subResource, &pTexture);
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// Create texture view
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D3D11_SHADER_RESOURCE_VIEW_DESC srvDesc;
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ZeroMemory(&srvDesc, sizeof(srvDesc));
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srvDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
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srvDesc.Format = DXGI_FORMAT_A8_UNORM;
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srvDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
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srvDesc.Texture2D.MipLevels = desc.MipLevels;
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srvDesc.Texture2D.MostDetailedMip = 0;
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@ -471,7 +468,7 @@ void InitImGui()
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{
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D3D11_SAMPLER_DESC desc;
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ZeroMemory(&desc, sizeof(desc));
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desc.Filter = D3D11_FILTER_MIN_MAG_MIP_POINT;
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desc.Filter = D3D11_FILTER_MIN_MAG_POINT_MIP_LINEAR;
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desc.AddressU = D3D11_TEXTURE_ADDRESS_WRAP;
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desc.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
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desc.AddressW = D3D11_TEXTURE_ADDRESS_WRAP;
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@ -76,7 +76,6 @@
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<ItemGroup>
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<ClInclude Include="..\..\imconfig.h" />
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<ClInclude Include="..\..\imgui.h" />
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<ClInclude Include="..\..\stb_textedit.h" />
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</ItemGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
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<ImportGroup Label="ExtensionTargets">
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@ -24,8 +24,5 @@
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<ClInclude Include="..\..\imgui.h">
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<Filter>imgui</Filter>
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</ClInclude>
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<ClInclude Include="..\..\stb_textedit.h">
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<Filter>imgui</Filter>
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</ClInclude>
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</ItemGroup>
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</Project>
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@ -73,12 +73,13 @@ static void ImImpl_RenderDrawLists(ImDrawList** const cmd_lists, int cmd_lists_c
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// Setup texture
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g_pd3dDevice->SetTexture( 0, g_pTexture );
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g_pd3dDevice->SetTextureStageState( 0, D3DTSS_COLOROP, D3DTOP_MODULATE );
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g_pd3dDevice->SetTextureStageState( 0, D3DTSS_COLORARG1, D3DTA_TEXTURE );
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g_pd3dDevice->SetTextureStageState( 0, D3DTSS_COLORARG2, D3DTA_DIFFUSE );
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g_pd3dDevice->SetTextureStageState( 0, D3DTSS_COLOROP, D3DTOP_SELECTARG1 );
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g_pd3dDevice->SetTextureStageState( 0, D3DTSS_COLORARG1, D3DTA_DIFFUSE );
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g_pd3dDevice->SetTextureStageState( 0, D3DTSS_ALPHAOP, D3DTOP_MODULATE );
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g_pd3dDevice->SetTextureStageState( 0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE );
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g_pd3dDevice->SetTextureStageState( 0, D3DTSS_ALPHAARG2, D3DTA_DIFFUSE );
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g_pd3dDevice->SetSamplerState( 0, D3DSAMP_MINFILTER, D3DTEXF_LINEAR );
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g_pd3dDevice->SetSamplerState( 0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR );
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// Setup orthographic projection matrix
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D3DXMATRIXA16 mat;
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@ -213,15 +214,21 @@ void InitImGui()
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return;
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}
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// Load font texture
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const void* png_data;
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unsigned int png_size;
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ImGui::GetDefaultFontData(NULL, NULL, &png_data, &png_size);
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if (D3DXCreateTextureFromFileInMemory(g_pd3dDevice, png_data, png_size, &g_pTexture) < 0)
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{
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IM_ASSERT(0);
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return;
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}
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// Load font
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io.Font = new ImFont();
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io.Font->LoadDefault();
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//io.Font->LoadFromFileTTF("myfont.ttf", font_size_px, ImFont::GetGlyphRangesDefault());
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io.Font->LoadFromFileTTF("../../extra_fonts/ArialUni.ttf", 20.0f, ImFont::GetGlyphRangesDefault());
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//io.Font->DisplayOffset.y += 0.0f;
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IM_ASSERT(io.Font->IsLoaded());
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// Copy font texture
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if (D3DXCreateTexture(g_pd3dDevice, io.Font->TexWidth, io.Font->TexHeight, 1, D3DUSAGE_DYNAMIC, D3DFMT_A8, D3DPOOL_DEFAULT, &g_pTexture) < 0) { IM_ASSERT(0); return; }
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D3DLOCKED_RECT tex_locked_rect;
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if (g_pTexture->LockRect(0, &tex_locked_rect, NULL, 0) != D3D_OK) { IM_ASSERT(0); return; }
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for (int y = 0; y < io.Font->TexHeight; y++)
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memcpy((unsigned char *)tex_locked_rect.pBits + tex_locked_rect.Pitch * y, io.Font->TexPixels + io.Font->TexWidth * y, io.Font->TexWidth);
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g_pTexture->UnlockRect(0);
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}
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INT64 ticks_per_second = 0;
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@ -330,7 +337,7 @@ int WINAPI wWinMain(HINSTANCE hInst, HINSTANCE, LPWSTR, int)
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// 3. Show the ImGui test window. Most of the sample code is in ImGui::ShowTestWindow()
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if (show_test_window)
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{
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ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiSetCondition_FirstUseEver);
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ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiSetCondition_FirstUseEver);
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ImGui::ShowTestWindow(&show_test_window);
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}
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@ -8,9 +8,7 @@
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#endif
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#include "../../imgui.h"
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#define STB_IMAGE_STATIC
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#define STB_IMAGE_IMPLEMENTATION
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#include "../shared/stb_image.h" // stb_image.h for PNG loading
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#include <stdio.h>
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// Glfw/Glew
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#define GLEW_STATIC
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@ -24,7 +22,7 @@ static bool mousePressed[2] = { false, false };
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// Shader variables
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static int shader_handle, vert_handle, frag_handle;
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static int texture_location, ortho_location;
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static int texture_location, proj_mtx_location;
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static int position_location, uv_location, colour_location;
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static size_t vbo_max_size = 20000;
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static unsigned int vbo_handle, vao_handle;
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@ -62,7 +60,7 @@ static void ImImpl_RenderDrawLists(ImDrawList** const cmd_lists, int cmd_lists_c
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};
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glUseProgram(shader_handle);
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glUniform1i(texture_location, 0);
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glUniformMatrix4fv(ortho_location, 1, GL_FALSE, &ortho_projection[0][0]);
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glUniformMatrix4fv(proj_mtx_location, 1, GL_FALSE, &ortho_projection[0][0]);
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// Grow our buffer according to what we need
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size_t total_vtx_count = 0;
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@ -184,28 +182,29 @@ void InitGL()
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const GLchar *vertex_shader =
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"#version 330\n"
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"uniform mat4 ortho;\n"
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"uniform mat4 ProjMtx;\n"
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"in vec2 Position;\n"
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"in vec2 UV;\n"
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"in vec4 Colour;\n"
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"in vec4 Color;\n"
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"out vec2 Frag_UV;\n"
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"out vec4 Frag_Colour;\n"
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"out vec4 Frag_Color;\n"
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"void main()\n"
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"{\n"
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" Frag_UV = UV;\n"
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" Frag_Colour = Colour;\n"
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" gl_Position = ortho*vec4(Position.xy,0,1);\n"
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" Frag_Color = Color;\n"
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" gl_Position = ProjMtx * vec4(Position.xy,0,1);\n"
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"}\n";
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const GLchar* fragment_shader =
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"#version 330\n"
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"uniform sampler2D Texture;\n"
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"in vec2 Frag_UV;\n"
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"in vec4 Frag_Colour;\n"
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"out vec4 FragColor;\n"
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"in vec4 Frag_Color;\n"
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"out vec4 Out_Color;\n"
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"void main()\n"
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"{\n"
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" FragColor = Frag_Colour * texture( Texture, Frag_UV.st);\n"
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" Out_Color = Frag_Color;\n"
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" Out_Color.w *= texture( Texture, Frag_UV.st).x;\n"
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"}\n";
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shader_handle = glCreateProgram();
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@ -220,10 +219,10 @@ void InitGL()
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glLinkProgram(shader_handle);
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texture_location = glGetUniformLocation(shader_handle, "Texture");
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ortho_location = glGetUniformLocation(shader_handle, "ortho");
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proj_mtx_location = glGetUniformLocation(shader_handle, "ProjMtx");
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position_location = glGetAttribLocation(shader_handle, "Position");
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uv_location = glGetAttribLocation(shader_handle, "UV");
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colour_location = glGetAttribLocation(shader_handle, "Colour");
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colour_location = glGetAttribLocation(shader_handle, "Color");
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glGenBuffers(1, &vbo_handle);
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glBindBuffer(GL_ARRAY_BUFFER, vbo_handle);
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@ -270,18 +269,20 @@ void InitImGui()
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io.SetClipboardTextFn = ImImpl_SetClipboardTextFn;
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io.GetClipboardTextFn = ImImpl_GetClipboardTextFn;
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// Load font texture
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// Load font
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io.Font = new ImFont();
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io.Font->LoadDefault();
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//io.Font->LoadFromFileTTF("myfont.ttf", font_size_px, ImFont::GetGlyphRangesDefault());
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//io.Font->DisplayOffset.y += 0.0f;
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IM_ASSERT(io.Font->IsLoaded());
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// Copy font texture
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glGenTextures(1, &fontTex);
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glBindTexture(GL_TEXTURE_2D, fontTex);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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const void* png_data;
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unsigned int png_size;
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ImGui::GetDefaultFontData(NULL, NULL, &png_data, &png_size);
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int tex_x, tex_y, tex_comp;
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void* tex_data = stbi_load_from_memory((const unsigned char*)png_data, (int)png_size, &tex_x, &tex_y, &tex_comp, 0);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex_x, tex_y, 0, GL_RGBA, GL_UNSIGNED_BYTE, tex_data);
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stbi_image_free(tex_data);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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IM_ASSERT(io.Font->IsLoaded());
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, io.Font->TexWidth, io.Font->TexHeight, 0, GL_RED, GL_UNSIGNED_BYTE, io.Font->TexPixels);
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}
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void UpdateImGui()
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@ -364,7 +365,7 @@ int main(int argc, char** argv)
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// 3. Show the ImGui test window. Most of the sample code is in ImGui::ShowTestWindow()
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if (show_test_window)
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{
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ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiSetCondition_FirstUseEver);
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ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiSetCondition_FirstUseEver);
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ImGui::ShowTestWindow(&show_test_window);
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}
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@ -74,7 +74,6 @@
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<ItemGroup>
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<ClInclude Include="..\..\imconfig.h" />
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<ClInclude Include="..\..\imgui.h" />
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<ClInclude Include="..\..\stb_textedit.h" />
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</ItemGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
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<ImportGroup Label="ExtensionTargets">
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@ -24,8 +24,5 @@
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<ClInclude Include="..\..\imgui.h">
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<Filter>imgui</Filter>
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</ClInclude>
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<ClInclude Include="..\..\stb_textedit.h">
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<Filter>imgui</Filter>
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</ClInclude>
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</ItemGroup>
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</Project>
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BIN
examples/opengl_example/ProggyClean.ttf
Normal file
BIN
examples/opengl_example/ProggyClean.ttf
Normal file
Binary file not shown.
@ -8,9 +8,7 @@
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#endif
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#include "../../imgui.h"
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#define STB_IMAGE_STATIC
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#define STB_IMAGE_IMPLEMENTATION
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#include "../shared/stb_image.h" // stb_image.h for PNG loading
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#include <stdio.h>
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// Glfw/Glew
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#define GLEW_STATIC
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@ -180,42 +178,20 @@ void InitImGui()
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io.SetClipboardTextFn = ImImpl_SetClipboardTextFn;
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io.GetClipboardTextFn = ImImpl_GetClipboardTextFn;
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// Load font texture
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glGenTextures(1, &fontTex);
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glBindTexture(GL_TEXTURE_2D, fontTex);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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#if 1
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// Default font (embedded in code)
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const void* png_data;
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unsigned int png_size;
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ImGui::GetDefaultFontData(NULL, NULL, &png_data, &png_size);
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int tex_x, tex_y, tex_comp;
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void* tex_data = stbi_load_from_memory((const unsigned char*)png_data, (int)png_size, &tex_x, &tex_y, &tex_comp, 0);
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IM_ASSERT(tex_data != NULL);
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#else
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// Custom font from filesystem
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// Load font
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io.Font = new ImFont();
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io.Font->LoadFromFile("../../extra_fonts/mplus-2m-medium_18.fnt");
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io.Font->LoadDefault();
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//io.Font->LoadFromFileTTF("myfont.ttf", font_size_px, ImFont::GetGlyphRangesDefault());
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//io.Font->DisplayOffset.y += 0.0f;
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IM_ASSERT(io.Font->IsLoaded());
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int tex_x, tex_y, tex_comp;
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void* tex_data = stbi_load("../../extra_fonts/mplus-2m-medium_18.png", &tex_x, &tex_y, &tex_comp, 0);
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IM_ASSERT(tex_data != NULL);
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// Automatically find white pixel from the texture we just loaded
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// (io.Font->TexUvForWhite needs to contains UV coordinates pointing to a white pixel in order to render solid objects)
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for (int tex_data_off = 0; tex_data_off < tex_x*tex_y; tex_data_off++)
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if (((unsigned int*)tex_data)[tex_data_off] == 0xffffffff)
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{
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io.Font->TexUvForWhite = ImVec2((float)(tex_data_off % tex_x)/(tex_x), (float)(tex_data_off / tex_x)/(tex_y));
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break;
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}
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#endif
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex_x, tex_y, 0, GL_RGBA, GL_UNSIGNED_BYTE, tex_data);
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stbi_image_free(tex_data);
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// Copy font texture
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glGenTextures(1, &fontTex);
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glBindTexture(GL_TEXTURE_2D, fontTex);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
IM_ASSERT(io.Font->IsLoaded());
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, io.Font->TexWidth, io.Font->TexHeight, 0, GL_ALPHA, GL_UNSIGNED_BYTE, io.Font->TexPixels);
|
||||
}
|
||||
|
||||
void UpdateImGui()
|
||||
|
||||
@ -74,8 +74,6 @@
|
||||
<ItemGroup>
|
||||
<ClInclude Include="..\..\imconfig.h" />
|
||||
<ClInclude Include="..\..\imgui.h" />
|
||||
<ClInclude Include="..\..\stb_textedit.h" />
|
||||
<ClInclude Include="..\shared\stb_image.h" />
|
||||
</ItemGroup>
|
||||
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
|
||||
<ImportGroup Label="ExtensionTargets">
|
||||
|
||||
@ -24,11 +24,5 @@
|
||||
<ClInclude Include="..\..\imgui.h">
|
||||
<Filter>imgui</Filter>
|
||||
</ClInclude>
|
||||
<ClInclude Include="..\..\stb_textedit.h">
|
||||
<Filter>imgui</Filter>
|
||||
</ClInclude>
|
||||
<ClInclude Include="..\shared\stb_image.h">
|
||||
<Filter>sources</Filter>
|
||||
</ClInclude>
|
||||
</ItemGroup>
|
||||
</Project>
|
||||
@ -1,3 +0,0 @@
|
||||
stb_image.h is used to load the PNG texture data by
|
||||
opengl_example
|
||||
directx11_example
|
||||
File diff suppressed because it is too large
Load Diff
129
imgui.h
129
imgui.h
@ -1,4 +1,4 @@
|
||||
// ImGui library v1.20
|
||||
// ImGui library v1.30 wip
|
||||
// See .cpp file for commentary.
|
||||
// See ImGui::ShowTestWindow() for sample code.
|
||||
// Read 'Programmer guide' in .cpp for notes on how to setup ImGui in your codebase.
|
||||
@ -129,7 +129,7 @@ public:
|
||||
// - struct ImGuiTextBuffer // Text buffer for logging/accumulating text
|
||||
// - struct ImGuiStorage // Custom key value storage (if you need to alter open/close states manually)
|
||||
// - struct ImDrawList // Draw command list
|
||||
// - struct ImFont // Bitmap font loader
|
||||
// - struct ImFont // TTF font loader, bake glyphs into bitmap
|
||||
|
||||
// ImGui End-user API
|
||||
// In a namespace so that user can add extra functions (e.g. Value() helpers for your vector or common types)
|
||||
@ -309,7 +309,6 @@ namespace ImGui
|
||||
IMGUI_API float GetTime();
|
||||
IMGUI_API int GetFrameCount();
|
||||
IMGUI_API const char* GetStyleColName(ImGuiCol idx);
|
||||
IMGUI_API void GetDefaultFontData(const void** fnt_data, unsigned int* fnt_size, const void** png_data, unsigned int* png_size);
|
||||
IMGUI_API ImVec2 CalcTextSize(const char* text, const char* text_end = NULL, bool hide_text_after_double_hash = false, float wrap_width = -1.0f);
|
||||
|
||||
} // namespace ImGui
|
||||
@ -729,97 +728,59 @@ struct ImDrawList
|
||||
IMGUI_API void AddText(ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end = NULL, float wrap_width = 0.0f);
|
||||
};
|
||||
|
||||
// Bitmap font data loader & renderer into vertices
|
||||
// Using the .fnt format exported by BMFont
|
||||
// - tool: http://www.angelcode.com/products/bmfont
|
||||
// - file-format: http://www.angelcode.com/products/bmfont/doc/file_format.html
|
||||
// Assume valid file data (won't handle invalid/malicious data)
|
||||
// Handle a subset of the options, namely:
|
||||
// - kerning pair are not supported (because some ImGui code does per-character CalcTextSize calls, need to turn it into something more state-ful to allow for kerning)
|
||||
// TTF font loading and rendering
|
||||
// NB: kerning pair are not supported (because some ImGui code does per-character CalcTextSize calls, need to turn it into something more state-ful to allow for kerning)
|
||||
struct ImFont
|
||||
{
|
||||
struct FntInfo;
|
||||
struct FntCommon;
|
||||
struct FntGlyph;
|
||||
struct FntKerning;
|
||||
|
||||
// Settings
|
||||
float Scale; // = 1.0f // Base font scale, multiplied by the per-window font scale which you can adjust with SetFontScale()
|
||||
ImVec2 DisplayOffset; // = (0.0f,0.0f) // Offset font rendering by xx pixels
|
||||
ImVec2 TexUvForWhite; // = (0.0f,0.0f) // Font texture must have a white pixel at this UV coordinate. Adjust if you are using custom texture.
|
||||
ImWchar FallbackChar; // = '?' // Replacement glyph is one isn't found.
|
||||
float Scale; // = 1.0f // Base font scale, multiplied by the per-window font scale which you can adjust with SetFontScale()
|
||||
ImVec2 DisplayOffset; // = (0.0f,0.0f) // Offset font rendering by xx pixels
|
||||
ImWchar FallbackChar; // = '?' // Replacement glyph if one isn't found.
|
||||
|
||||
// Data
|
||||
unsigned char* Data; // Raw data, content of .fnt file
|
||||
size_t DataSize; //
|
||||
bool DataOwned; //
|
||||
const FntInfo* Info; // (point into raw data)
|
||||
const FntCommon* Common; // (point into raw data)
|
||||
const FntGlyph* Glyphs; // (point into raw data)
|
||||
size_t GlyphsCount; //
|
||||
const FntKerning* Kerning; // (point into raw data) - NB: kerning is unsupported
|
||||
size_t KerningCount; //
|
||||
ImVector<const char*> Filenames; // (point into raw data)
|
||||
ImVector<int> IndexLookup; // (built)
|
||||
const FntGlyph* FallbackGlyph; // == FindGlyph(FontFallbackChar)
|
||||
// Texture data
|
||||
unsigned char* TexPixels; // 1 byte, 1 component per pixel. Total byte size of TexWidth * TexHeight
|
||||
int TexWidth;
|
||||
int TexHeight;
|
||||
ImVec2 TexExtraDataPos; // Position of our rectangle where we draw non-font graphics
|
||||
ImVec2 TexUvWhitePixel; // Texture coordinates to a white pixel (part of the TexExtraData block)
|
||||
|
||||
struct Glyph
|
||||
{
|
||||
ImWchar Codepoint;
|
||||
signed short XAdvance;
|
||||
signed short Width, Height;
|
||||
signed short XOffset, YOffset;
|
||||
float U0, V0, U1, V1; // Texture coordinates
|
||||
};
|
||||
|
||||
// Runtime data
|
||||
float FontSize; // Height of characters
|
||||
ImVector<Glyph> Glyphs;
|
||||
ImVector<int> IndexLookup;
|
||||
const Glyph* FallbackGlyph; // == FindGlyph(FontFallbackChar)
|
||||
|
||||
// Methods
|
||||
IMGUI_API ImFont();
|
||||
IMGUI_API ~ImFont() { Clear(); }
|
||||
IMGUI_API ~ImFont();
|
||||
IMGUI_API bool LoadDefault();
|
||||
IMGUI_API bool LoadFromFileTTF(const char* filename, float size_pixels, const ImWchar* glyph_ranges = NULL, int font_no = 0);
|
||||
IMGUI_API bool LoadFromMemoryTTF(const void* data, size_t data_size, float size_pixels, const ImWchar* glyph_ranges = NULL, int font_no = 0);
|
||||
IMGUI_API void Clear();
|
||||
IMGUI_API void BuildLookupTable();
|
||||
IMGUI_API const Glyph* FindGlyph(unsigned short c) const;
|
||||
IMGUI_API bool IsLoaded() const { return TexPixels != NULL && !Glyphs.empty(); }
|
||||
|
||||
IMGUI_API bool LoadFromMemory(const void* data, size_t data_size);
|
||||
IMGUI_API bool LoadFromFile(const char* filename);
|
||||
IMGUI_API void Clear();
|
||||
IMGUI_API void BuildLookupTable();
|
||||
IMGUI_API const FntGlyph* FindGlyph(unsigned short c) const;
|
||||
IMGUI_API bool IsLoaded() const { return Info != NULL && Common != NULL && Glyphs != NULL; }
|
||||
// Retrieve list of common Unicode ranges (2 value per range, values are inclusive, zero-terminated list)
|
||||
static IMGUI_API const ImWchar* GetGlyphRangesDefault(); // Basic Latin, Extended Latin + a few more
|
||||
static IMGUI_API const ImWchar* GetGlyphRangesJapanese(); // Default + Hiragana, Katakana, Half-Width, Selection of 1946 Ideographs
|
||||
static IMGUI_API const ImWchar* GetGlyphRangesChinese(); // Japanese + full set of about 21000 CJK Unified Ideographs
|
||||
|
||||
// 'max_width' stops rendering after a certain width (could be turned into a 2d size). FLT_MAX to disable.
|
||||
// 'wrap_width' enable automatic word-wrapping across multiple lines to fit into given width. 0.0f to disable.
|
||||
IMGUI_API ImVec2 CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end = NULL, const char** remaining = NULL) const; // utf8
|
||||
IMGUI_API ImVec2 CalcTextSizeW(float size, float max_width, const ImWchar* text_begin, const ImWchar* text_end, const ImWchar** remaining = NULL) const; // wchar
|
||||
IMGUI_API void RenderText(float size, ImVec2 pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, ImDrawVert*& out_vertices, float wrap_width = 0.0f) const;
|
||||
|
||||
IMGUI_API const char* CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const;
|
||||
|
||||
#pragma pack(push, 1)
|
||||
struct FntInfo
|
||||
{
|
||||
signed short FontSize;
|
||||
unsigned char BitField; // bit 0: smooth, bit 1: unicode, bit 2: italic, bit 3: bold, bit 4: fixedHeight, bits 5-7: reserved
|
||||
unsigned char CharSet;
|
||||
unsigned short StretchH;
|
||||
unsigned char AA;
|
||||
unsigned char PaddingUp, PaddingRight, PaddingDown, PaddingLeft;
|
||||
unsigned char SpacingHoriz, SpacingVert, Outline;
|
||||
//char FontName[];
|
||||
};
|
||||
|
||||
struct FntCommon
|
||||
{
|
||||
unsigned short LineHeight, Base;
|
||||
unsigned short ScaleW, ScaleH;
|
||||
unsigned short Pages;
|
||||
unsigned char BitField;
|
||||
unsigned char Channels[4];
|
||||
};
|
||||
|
||||
struct FntGlyph
|
||||
{
|
||||
unsigned int Id;
|
||||
unsigned short X, Y, Width, Height;
|
||||
signed short XOffset, YOffset;
|
||||
signed short XAdvance;
|
||||
unsigned char Page;
|
||||
unsigned char Channel;
|
||||
};
|
||||
|
||||
struct FntKerning
|
||||
{
|
||||
unsigned int IdFirst;
|
||||
unsigned int IdSecond;
|
||||
signed short Amount;
|
||||
};
|
||||
#pragma pack(pop)
|
||||
IMGUI_API ImVec2 CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end = NULL, const char** remaining = NULL) const; // utf8
|
||||
IMGUI_API ImVec2 CalcTextSizeW(float size, float max_width, const ImWchar* text_begin, const ImWchar* text_end, const ImWchar** remaining = NULL) const; // wchar
|
||||
IMGUI_API void RenderText(float size, ImVec2 pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, ImDrawVert*& out_vertices, float wrap_width = 0.0f) const;
|
||||
IMGUI_API const char* CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const;
|
||||
};
|
||||
|
||||
//---- Include imgui_user.h at the end of imgui.h
|
||||
|
||||
546
stb_rect_pack.h
Normal file
546
stb_rect_pack.h
Normal file
@ -0,0 +1,546 @@
|
||||
// stb_rect_pack.h - v0.05 - public domain - rectangle packing
|
||||
// Sean Barrett 2014
|
||||
//
|
||||
// Useful for e.g. packing rectangular textures into an atlas.
|
||||
// Does not do rotation.
|
||||
//
|
||||
// Not necessarily the awesomest packing method, but better than
|
||||
// the totally naive one in stb_truetype (which is primarily what
|
||||
// this is meant to replace).
|
||||
//
|
||||
// Has only had a few tests run, may have issues.
|
||||
//
|
||||
// More docs to come.
|
||||
//
|
||||
// No memory allocations; uses qsort() and assert() from stdlib.
|
||||
//
|
||||
// This library currently uses the Skyline Bottom-Left algorithm.
|
||||
//
|
||||
// Please note: better rectangle packers are welcome! Please
|
||||
// implement them to the same API, but with a different init
|
||||
// function.
|
||||
//
|
||||
// Version history:
|
||||
//
|
||||
// 0.05: added STBRP_ASSERT to allow replacing assert
|
||||
// 0.04: fixed minor bug in STBRP_LARGE_RECTS support
|
||||
// 0.01: initial release
|
||||
|
||||
//////////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// INCLUDE SECTION
|
||||
//
|
||||
|
||||
#ifndef STB_INCLUDE_STB_RECT_PACK_H
|
||||
#define STB_INCLUDE_STB_RECT_PACK_H
|
||||
|
||||
#define STB_RECT_PACK_VERSION 1
|
||||
|
||||
#ifdef STBRP_STATIC
|
||||
#define STBRP_DEF static
|
||||
#else
|
||||
#define STBRP_DEF extern
|
||||
#endif
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
typedef struct stbrp_context stbrp_context;
|
||||
typedef struct stbrp_node stbrp_node;
|
||||
typedef struct stbrp_rect stbrp_rect;
|
||||
|
||||
#ifdef STBRP_LARGE_RECTS
|
||||
typedef int stbrp_coord;
|
||||
#else
|
||||
typedef unsigned short stbrp_coord;
|
||||
#endif
|
||||
|
||||
STBRP_DEF void stbrp_pack_rects (stbrp_context *context, stbrp_rect *rects, int num_rects);
|
||||
// Assign packed locations to rectangles. The rectangles are of type
|
||||
// 'stbrp_rect' defined below, stored in the array 'rects', and there
|
||||
// are 'num_rects' many of them.
|
||||
//
|
||||
// Rectangles which are successfully packed have the 'was_packed' flag
|
||||
// set to a non-zero value and 'x' and 'y' store the minimum location
|
||||
// on each axis (i.e. bottom-left in cartesian coordinates, top-left
|
||||
// if you imagine y increasing downwards). Rectangles which do not fit
|
||||
// have the 'was_packed' flag set to 0.
|
||||
//
|
||||
// You should not try to access the 'rects' array from another thread
|
||||
// while this function is running, as the function temporarily reorders
|
||||
// the array while it executes.
|
||||
//
|
||||
// To pack into another rectangle, you need to call stbrp_init_target
|
||||
// again. To continue packing into the same rectangle, you can call
|
||||
// this function again. Calling this multiple times with multiple rect
|
||||
// arrays will probably produce worse packing results than calling it
|
||||
// a single time with the full rectangle array, but the option is
|
||||
// available.
|
||||
|
||||
struct stbrp_rect
|
||||
{
|
||||
// reserved for your use:
|
||||
int id;
|
||||
|
||||
// input:
|
||||
stbrp_coord w, h;
|
||||
|
||||
// output:
|
||||
stbrp_coord x, y;
|
||||
int was_packed; // non-zero if valid packing
|
||||
|
||||
}; // 16 bytes, nominally
|
||||
|
||||
|
||||
STBRP_DEF void stbrp_init_target (stbrp_context *context, int width, int height, stbrp_node *nodes, int num_nodes);
|
||||
// Initialize a rectangle packer to:
|
||||
// pack a rectangle that is 'width' by 'height' in dimensions
|
||||
// using temporary storage provided by the array 'nodes', which is 'num_nodes' long
|
||||
//
|
||||
// You must call this function every time you start packing into a new target.
|
||||
//
|
||||
// There is no "shutdown" function. The 'nodes' memory must stay valid for
|
||||
// the following stbrp_pack_rects() call (or calls), but can be freed after
|
||||
// the call (or calls) finish.
|
||||
//
|
||||
// Note: to guarantee best results, either:
|
||||
// 1. make sure 'num_nodes' >= 'width'
|
||||
// or 2. call stbrp_allow_out_of_mem() defined below with 'allow_out_of_mem = 1'
|
||||
//
|
||||
// If you don't do either of the above things, widths will be quantized to multiples
|
||||
// of small integers to guarantee the algorithm doesn't run out of temporary storage.
|
||||
//
|
||||
// If you do #2, then the non-quantized algorithm will be used, but the algorithm
|
||||
// may run out of temporary storage and be unable to pack some rectangles.
|
||||
|
||||
STBRP_DEF void stbrp_setup_allow_out_of_mem (stbrp_context *context, int allow_out_of_mem);
|
||||
// Optionally call this function after init but before doing any packing to
|
||||
// change the handling of the out-of-temp-memory scenario, described above.
|
||||
// If you call init again, this will be reset to the default (false).
|
||||
|
||||
|
||||
STBRP_DEF void stbrp_setup_heuristic (stbrp_context *context, int heuristic);
|
||||
// Optionally select which packing heuristic the library should use. Different
|
||||
// heuristics will produce better/worse results for different data sets.
|
||||
// If you call init again, this will be reset to the default.
|
||||
|
||||
enum
|
||||
{
|
||||
STBRP_HEURISTIC_Skyline_default=0,
|
||||
STBRP_HEURISTIC_Skyline_BL_sortHeight = STBRP_HEURISTIC_Skyline_default,
|
||||
STBRP_HEURISTIC_Skyline_BF_sortHeight,
|
||||
};
|
||||
|
||||
|
||||
//////////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// the details of the following structures don't matter to you, but they must
|
||||
// be visible so you can handle the memory allocations for them
|
||||
|
||||
struct stbrp_node
|
||||
{
|
||||
stbrp_coord x,y;
|
||||
stbrp_node *next;
|
||||
};
|
||||
|
||||
struct stbrp_context
|
||||
{
|
||||
int width;
|
||||
int height;
|
||||
int align;
|
||||
int init_mode;
|
||||
int heuristic;
|
||||
int num_nodes;
|
||||
stbrp_node *active_head;
|
||||
stbrp_node *free_head;
|
||||
stbrp_node extra[2]; // we allocate two extra nodes so optimal user-node-count is 'width' not 'width+2'
|
||||
};
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
||||
//////////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// IMPLEMENTATION SECTION
|
||||
//
|
||||
|
||||
#ifdef STB_RECT_PACK_IMPLEMENTATION
|
||||
#include <stdlib.h>
|
||||
|
||||
#ifndef STBRP_ASSERT
|
||||
#include <assert.h>
|
||||
#define STBRP_ASSERT assert
|
||||
#endif
|
||||
|
||||
enum
|
||||
{
|
||||
STBRP__INIT_skyline = 1,
|
||||
};
|
||||
|
||||
STBRP_DEF void stbrp_setup_heuristic(stbrp_context *context, int heuristic)
|
||||
{
|
||||
switch (context->init_mode) {
|
||||
case STBRP__INIT_skyline:
|
||||
STBRP_ASSERT(heuristic == STBRP_HEURISTIC_Skyline_BL_sortHeight || heuristic == STBRP_HEURISTIC_Skyline_BF_sortHeight);
|
||||
context->heuristic = heuristic;
|
||||
break;
|
||||
default:
|
||||
STBRP_ASSERT(0);
|
||||
}
|
||||
}
|
||||
|
||||
STBRP_DEF void stbrp_setup_allow_out_of_mem(stbrp_context *context, int allow_out_of_mem)
|
||||
{
|
||||
if (allow_out_of_mem)
|
||||
// if it's ok to run out of memory, then don't bother aligning them;
|
||||
// this gives better packing, but may fail due to OOM (even though
|
||||
// the rectangles easily fit). @TODO a smarter approach would be to only
|
||||
// quantize once we've hit OOM, then we could get rid of this parameter.
|
||||
context->align = 1;
|
||||
else {
|
||||
// if it's not ok to run out of memory, then quantize the widths
|
||||
// so that num_nodes is always enough nodes.
|
||||
//
|
||||
// I.e. num_nodes * align >= width
|
||||
// align >= width / num_nodes
|
||||
// align = ceil(width/num_nodes)
|
||||
|
||||
context->align = (context->width + context->num_nodes-1) / context->num_nodes;
|
||||
}
|
||||
}
|
||||
|
||||
STBRP_DEF void stbrp_init_target(stbrp_context *context, int width, int height, stbrp_node *nodes, int num_nodes)
|
||||
{
|
||||
int i;
|
||||
#ifndef STBRP_LARGE_RECTS
|
||||
STBRP_ASSERT(width <= 0xffff && height <= 0xffff);
|
||||
#endif
|
||||
|
||||
for (i=0; i < num_nodes-1; ++i)
|
||||
nodes[i].next = &nodes[i+1];
|
||||
nodes[i].next = NULL;
|
||||
context->init_mode = STBRP__INIT_skyline;
|
||||
context->heuristic = STBRP_HEURISTIC_Skyline_default;
|
||||
context->free_head = &nodes[0];
|
||||
context->active_head = &context->extra[0];
|
||||
context->width = width;
|
||||
context->height = height;
|
||||
context->num_nodes = num_nodes;
|
||||
stbrp_setup_allow_out_of_mem(context, 0);
|
||||
|
||||
// node 0 is the full width, node 1 is the sentinel (lets us not store width explicitly)
|
||||
context->extra[0].x = 0;
|
||||
context->extra[0].y = 0;
|
||||
context->extra[0].next = &context->extra[1];
|
||||
context->extra[1].x = (stbrp_coord) width;
|
||||
#ifdef STBRP_LARGE_RECTS
|
||||
context->extra[1].y = (1<<30);
|
||||
#else
|
||||
context->extra[1].y = 65535;
|
||||
#endif
|
||||
context->extra[1].next = NULL;
|
||||
}
|
||||
|
||||
// find minimum y position if it starts at x1
|
||||
static int stbrp__skyline_find_min_y(stbrp_context *c, stbrp_node *first, int x0, int width, int *pwaste)
|
||||
{
|
||||
stbrp_node *node = first;
|
||||
int x1 = x0 + width;
|
||||
int min_y, visited_width, waste_area;
|
||||
STBRP_ASSERT(first->x <= x0);
|
||||
|
||||
#if 0
|
||||
// skip in case we're past the node
|
||||
while (node->next->x <= x0)
|
||||
++node;
|
||||
#else
|
||||
STBRP_ASSERT(node->next->x > x0); // we ended up handling this in the caller for efficiency
|
||||
#endif
|
||||
|
||||
STBRP_ASSERT(node->x <= x0);
|
||||
|
||||
min_y = 0;
|
||||
waste_area = 0;
|
||||
visited_width = 0;
|
||||
while (node->x < x1) {
|
||||
if (node->y > min_y) {
|
||||
// raise min_y higher.
|
||||
// we've accounted for all waste up to min_y,
|
||||
// but we'll now add more waste for everything we've visted
|
||||
waste_area += visited_width * (node->y - min_y);
|
||||
min_y = node->y;
|
||||
// the first time through, visited_width might be reduced
|
||||
if (node->x < x0)
|
||||
visited_width += node->next->x - x0;
|
||||
else
|
||||
visited_width += node->next->x - node->x;
|
||||
} else {
|
||||
// add waste area
|
||||
int under_width = node->next->x - node->x;
|
||||
if (under_width + visited_width > width)
|
||||
under_width = width - visited_width;
|
||||
waste_area += under_width * (min_y - node->y);
|
||||
visited_width += under_width;
|
||||
}
|
||||
node = node->next;
|
||||
}
|
||||
|
||||
*pwaste = waste_area;
|
||||
return min_y;
|
||||
}
|
||||
|
||||
typedef struct
|
||||
{
|
||||
int x,y;
|
||||
stbrp_node **prev_link;
|
||||
} stbrp__findresult;
|
||||
|
||||
static stbrp__findresult stbrp__skyline_find_best_pos(stbrp_context *c, int width, int height)
|
||||
{
|
||||
int best_waste = (1<<30), best_x, best_y = (1 << 30);
|
||||
stbrp__findresult fr;
|
||||
stbrp_node **prev, *node, *tail, **best = NULL;
|
||||
|
||||
// align to multiple of c->align
|
||||
width = (width + c->align - 1);
|
||||
width -= width % c->align;
|
||||
STBRP_ASSERT(width % c->align == 0);
|
||||
|
||||
node = c->active_head;
|
||||
prev = &c->active_head;
|
||||
while (node->x + width <= c->width) {
|
||||
int y,waste;
|
||||
y = stbrp__skyline_find_min_y(c, node, node->x, width, &waste);
|
||||
if (c->heuristic == STBRP_HEURISTIC_Skyline_BL_sortHeight) { // actually just want to test BL
|
||||
// bottom left
|
||||
if (y < best_y) {
|
||||
best_y = y;
|
||||
best = prev;
|
||||
}
|
||||
} else {
|
||||
// best-fit
|
||||
if (y + height <= c->height) {
|
||||
// can only use it if it first vertically
|
||||
if (y < best_y || (y == best_y && waste < best_waste)) {
|
||||
best_y = y;
|
||||
best_waste = waste;
|
||||
best = prev;
|
||||
}
|
||||
}
|
||||
}
|
||||
prev = &node->next;
|
||||
node = node->next;
|
||||
}
|
||||
|
||||
best_x = (best == NULL) ? 0 : (*best)->x;
|
||||
|
||||
// if doing best-fit (BF), we also have to try aligning right edge to each node position
|
||||
//
|
||||
// e.g, if fitting
|
||||
//
|
||||
// ____________________
|
||||
// |____________________|
|
||||
//
|
||||
// into
|
||||
//
|
||||
// | |
|
||||
// | ____________|
|
||||
// |____________|
|
||||
//
|
||||
// then right-aligned reduces waste, but bottom-left BL is always chooses left-aligned
|
||||
//
|
||||
// This makes BF take about 2x the time
|
||||
|
||||
if (c->heuristic == STBRP_HEURISTIC_Skyline_BF_sortHeight) {
|
||||
tail = c->active_head;
|
||||
node = c->active_head;
|
||||
prev = &c->active_head;
|
||||
// find first node that's admissible
|
||||
while (tail->x < width)
|
||||
tail = tail->next;
|
||||
while (tail) {
|
||||
int xpos = tail->x - width;
|
||||
int y,waste;
|
||||
STBRP_ASSERT(xpos >= 0);
|
||||
// find the left position that matches this
|
||||
while (node->next->x <= xpos) {
|
||||
prev = &node->next;
|
||||
node = node->next;
|
||||
}
|
||||
STBRP_ASSERT(node->next->x > xpos && node->x <= xpos);
|
||||
y = stbrp__skyline_find_min_y(c, node, xpos, width, &waste);
|
||||
if (y + height < c->height) {
|
||||
if (y <= best_y) {
|
||||
if (y < best_y || waste < best_waste || (waste==best_waste && xpos < best_x)) {
|
||||
best_x = xpos;
|
||||
STBRP_ASSERT(y <= best_y);
|
||||
best_y = y;
|
||||
best_waste = waste;
|
||||
best = prev;
|
||||
}
|
||||
}
|
||||
}
|
||||
tail = tail->next;
|
||||
}
|
||||
}
|
||||
|
||||
fr.prev_link = best;
|
||||
fr.x = best_x;
|
||||
fr.y = best_y;
|
||||
return fr;
|
||||
}
|
||||
|
||||
static stbrp__findresult stbrp__skyline_pack_rectangle(stbrp_context *context, int width, int height)
|
||||
{
|
||||
// find best position according to heuristic
|
||||
stbrp__findresult res = stbrp__skyline_find_best_pos(context, width, height);
|
||||
stbrp_node *node, *cur;
|
||||
|
||||
// bail if:
|
||||
// 1. it failed
|
||||
// 2. the best node doesn't fit (we don't always check this)
|
||||
// 3. we're out of memory
|
||||
if (res.prev_link == NULL || res.y + height > context->height || context->free_head == NULL) {
|
||||
res.prev_link = NULL;
|
||||
return res;
|
||||
}
|
||||
|
||||
// on success, create new node
|
||||
node = context->free_head;
|
||||
node->x = (stbrp_coord) res.x;
|
||||
node->y = (stbrp_coord) (res.y + height);
|
||||
|
||||
context->free_head = node->next;
|
||||
|
||||
// insert the new node into the right starting point, and
|
||||
// let 'cur' point to the remaining nodes needing to be
|
||||
// stiched back in
|
||||
|
||||
cur = *res.prev_link;
|
||||
if (cur->x < res.x) {
|
||||
// preserve the existing one, so start testing with the next one
|
||||
stbrp_node *next = cur->next;
|
||||
cur->next = node;
|
||||
cur = next;
|
||||
} else {
|
||||
*res.prev_link = node;
|
||||
}
|
||||
|
||||
// from here, traverse cur and free the nodes, until we get to one
|
||||
// that shouldn't be freed
|
||||
while (cur->next && cur->next->x <= res.x + width) {
|
||||
stbrp_node *next = cur->next;
|
||||
// move the current node to the free list
|
||||
cur->next = context->free_head;
|
||||
context->free_head = cur;
|
||||
cur = next;
|
||||
}
|
||||
|
||||
// stitch the list back in
|
||||
node->next = cur;
|
||||
|
||||
if (cur->x < res.x + width)
|
||||
cur->x = (stbrp_coord) (res.x + width);
|
||||
|
||||
#ifdef _DEBUG
|
||||
cur = context->active_head;
|
||||
while (cur->x < context->width) {
|
||||
STBRP_ASSERT(cur->x < cur->next->x);
|
||||
cur = cur->next;
|
||||
}
|
||||
STBRP_ASSERT(cur->next == NULL);
|
||||
|
||||
{
|
||||
stbrp_node *L1 = NULL, *L2 = NULL;
|
||||
int count=0;
|
||||
cur = context->active_head;
|
||||
while (cur) {
|
||||
L1 = cur;
|
||||
cur = cur->next;
|
||||
++count;
|
||||
}
|
||||
cur = context->free_head;
|
||||
while (cur) {
|
||||
L2 = cur;
|
||||
cur = cur->next;
|
||||
++count;
|
||||
}
|
||||
STBRP_ASSERT(count == context->num_nodes+2);
|
||||
}
|
||||
#endif
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
static int rect_height_compare(const void *a, const void *b)
|
||||
{
|
||||
stbrp_rect *p = (stbrp_rect *) a;
|
||||
stbrp_rect *q = (stbrp_rect *) b;
|
||||
if (p->h > q->h)
|
||||
return -1;
|
||||
if (p->h < q->h)
|
||||
return 1;
|
||||
return (p->w > q->w) ? -1 : (p->w < q->w);
|
||||
}
|
||||
|
||||
static int rect_width_compare(const void *a, const void *b)
|
||||
{
|
||||
stbrp_rect *p = (stbrp_rect *) a;
|
||||
stbrp_rect *q = (stbrp_rect *) b;
|
||||
if (p->w > q->w)
|
||||
return -1;
|
||||
if (p->w < q->w)
|
||||
return 1;
|
||||
return (p->h > q->h) ? -1 : (p->h < q->h);
|
||||
}
|
||||
|
||||
static int rect_original_order(const void *a, const void *b)
|
||||
{
|
||||
stbrp_rect *p = (stbrp_rect *) a;
|
||||
stbrp_rect *q = (stbrp_rect *) b;
|
||||
return (p->was_packed < q->was_packed) ? -1 : (p->was_packed > q->was_packed);
|
||||
}
|
||||
|
||||
#ifdef STBRP_LARGE_RECTS
|
||||
#define STBRP__MAXVAL 0xffffffff
|
||||
#else
|
||||
#define STBRP__MAXVAL 0xffff
|
||||
#endif
|
||||
|
||||
STBRP_DEF void stbrp_pack_rects(stbrp_context *context, stbrp_rect *rects, int num_rects)
|
||||
{
|
||||
int i;
|
||||
|
||||
// we use the 'was_packed' field internally to allow sorting/unsorting
|
||||
for (i=0; i < num_rects; ++i) {
|
||||
rects[i].was_packed = i;
|
||||
#ifndef STBRP_LARGE_RECTS
|
||||
STBRP_ASSERT(rects[i].w <= 0xffff && rects[i].h <= 0xffff);
|
||||
#endif
|
||||
}
|
||||
|
||||
// sort according to heuristic
|
||||
qsort(rects, num_rects, sizeof(rects[0]), rect_height_compare);
|
||||
|
||||
for (i=0; i < num_rects; ++i) {
|
||||
stbrp__findresult fr = stbrp__skyline_pack_rectangle(context, rects[i].w, rects[i].h);
|
||||
if (fr.prev_link) {
|
||||
rects[i].x = (stbrp_coord) fr.x;
|
||||
rects[i].y = (stbrp_coord) fr.y;
|
||||
} else {
|
||||
rects[i].x = rects[i].y = STBRP__MAXVAL;
|
||||
}
|
||||
}
|
||||
|
||||
// unsort
|
||||
qsort(rects, num_rects, sizeof(rects[0]), rect_original_order);
|
||||
|
||||
// set was_packed flags
|
||||
for (i=0; i < num_rects; ++i)
|
||||
rects[i].was_packed = !(rects[i].x == STBRP__MAXVAL && rects[i].y == STBRP__MAXVAL);
|
||||
}
|
||||
#endif
|
||||
2646
stb_truetype.h
Normal file
2646
stb_truetype.h
Normal file
File diff suppressed because it is too large
Load Diff
Loading…
Reference in New Issue
Block a user