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https://github.com/Ed94/Cog.git
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Arnaud Jamin
51 lines
1.9 KiB
C++
51 lines
1.9 KiB
C++
#pragma once
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#include "NetImgui_Shared.h"
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namespace NetImgui { namespace Internal
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{
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struct ImguiVert
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{
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//Note: If updating this, increase 'CmdVersion::eVersion'
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enum Constants{ kUvRange_Min=0, kUvRange_Max=1, kPosRange_Min=-8192, kPosRange_Max=8192};
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uint16_t mPos[2];
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uint16_t mUV[2];
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uint32_t mColor;
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};
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struct ImguiDraw
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{
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uint64_t mTextureId;
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uint32_t mIdxCount; // Drawcall number of indices (3 indices per triangles)
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uint32_t mVtxOffset; // Drawcall start position in vertices buffer (considered index 0)
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uint32_t mIdxOffset; // Drawcall start position in indices buffer
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float mClipRect[4];
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uint8_t PADDING[4]={};
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};
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// Each DearImgui window has its own vertex/index buffers with multiple drawcalls
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struct alignas(8) ImguiDrawGroup
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{
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static constexpr uint32_t kInvalidDrawGroup = 0xFFFFFFFF;
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uint64_t mGroupID = 0; // Unique ID to recognize DrawGroup between 2 frames
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uint32_t mVerticeCount = 0;
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uint32_t mIndiceCount = 0;
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uint32_t mDrawCount = 0;
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uint32_t mDrawGroupIdxPrev = kInvalidDrawGroup;// Group index in previous DrawFrame (kInvalidDrawGroup when not using delta compression)
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uint8_t mBytePerIndex = 2; // 2, 4 bytes
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uint8_t PADDING[7] = {};
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float mReferenceCoord[2] = {}; // Reference position for the encoded vertices offsets (1st vertice top/left position)
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OffsetPointer<uint8_t> mpIndices;
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OffsetPointer<ImguiVert> mpVertices;
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OffsetPointer<ImguiDraw> mpDraws;
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inline void ToPointers();
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inline void ToOffsets();
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};
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struct CmdDrawFrame* ConvertToCmdDrawFrame(const ImDrawData* pDearImguiData, ImGuiMouseCursor cursor);
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struct CmdDrawFrame* CompressCmdDrawFrame(const CmdDrawFrame* pDrawFramePrev, const CmdDrawFrame* pDrawFrameNew);
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struct CmdDrawFrame* DecompressCmdDrawFrame(const CmdDrawFrame* pDrawFramePrev, const CmdDrawFrame* pDrawFramePacked);
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}} // namespace NetImgui::Internal
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