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131 lines
3.7 KiB
C++
131 lines
3.7 KiB
C++
// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)
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// SPDX-FileCopyrightText: 2021 Jorrit Rouwe
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// SPDX-License-Identifier: MIT
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#pragma once
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#ifndef JPH_DEBUG_RENDERER
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#error This file should only be included when JPH_DEBUG_RENDERER is defined
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#endif // !JPH_DEBUG_RENDERER
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#include <Jolt/Renderer/DebugRenderer.h>
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#include <Jolt/Core/StreamOut.h>
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#include <Jolt/Core/Mutex.h>
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#include <Jolt/Core/UnorderedMap.h>
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JPH_NAMESPACE_BEGIN
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/// Implementation of DebugRenderer that records the API invocations to be played back later
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class JPH_DEBUG_RENDERER_EXPORT DebugRendererRecorder final : public DebugRenderer
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{
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public:
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JPH_OVERRIDE_NEW_DELETE
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/// Constructor
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DebugRendererRecorder(StreamOut &inStream) : mStream(inStream) { Initialize(); }
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/// Implementation of DebugRenderer interface
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virtual void DrawLine(RVec3Arg inFrom, RVec3Arg inTo, ColorArg inColor) override;
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virtual void DrawTriangle(RVec3Arg inV1, RVec3Arg inV2, RVec3Arg inV3, ColorArg inColor, ECastShadow inCastShadow) override;
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virtual Batch CreateTriangleBatch(const Triangle *inTriangles, int inTriangleCount) override;
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virtual Batch CreateTriangleBatch(const Vertex *inVertices, int inVertexCount, const uint32 *inIndices, int inIndexCount) override;
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virtual void DrawGeometry(RMat44Arg inModelMatrix, const AABox &inWorldSpaceBounds, float inLODScaleSq, ColorArg inModelColor, const GeometryRef &inGeometry, ECullMode inCullMode, ECastShadow inCastShadow, EDrawMode inDrawMode) override;
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virtual void DrawText3D(RVec3Arg inPosition, const string_view &inString, ColorArg inColor, float inHeight) override;
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/// Mark the end of a frame
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void EndFrame();
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/// Control commands written into the stream
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enum class ECommand : uint8
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{
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CreateBatch,
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CreateBatchIndexed,
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CreateGeometry,
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EndFrame
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};
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/// Holds a single line segment
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struct LineBlob
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{
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RVec3 mFrom;
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RVec3 mTo;
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Color mColor;
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};
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/// Holds a single triangle
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struct TriangleBlob
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{
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RVec3 mV1;
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RVec3 mV2;
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RVec3 mV3;
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Color mColor;
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ECastShadow mCastShadow;
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};
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/// Holds a single text entry
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struct TextBlob
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{
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TextBlob() = default;
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TextBlob(RVec3Arg inPosition, const string_view &inString, ColorArg inColor, float inHeight) : mPosition(inPosition), mString(inString), mColor(inColor), mHeight(inHeight) { }
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RVec3 mPosition;
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String mString;
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Color mColor;
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float mHeight;
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};
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/// Holds a single geometry draw call
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struct GeometryBlob
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{
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RMat44 mModelMatrix;
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Color mModelColor;
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uint32 mGeometryID;
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ECullMode mCullMode;
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ECastShadow mCastShadow;
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EDrawMode mDrawMode;
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};
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/// All information for a single frame
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struct Frame
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{
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Array<LineBlob> mLines;
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Array<TriangleBlob> mTriangles;
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Array<TextBlob> mTexts;
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Array<GeometryBlob> mGeometries;
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};
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private:
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/// Implementation specific batch object
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class BatchImpl : public RefTargetVirtual
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{
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public:
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JPH_OVERRIDE_NEW_DELETE
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BatchImpl(uint32 inID) : mID(inID) { }
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virtual void AddRef() override { ++mRefCount; }
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virtual void Release() override { if (--mRefCount == 0) delete this; }
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atomic<uint32> mRefCount = 0;
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uint32 mID;
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};
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/// Lock that prevents concurrent access to the internal structures
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Mutex mMutex;
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/// Stream that recorded data will be sent to
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StreamOut & mStream;
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/// Next available ID
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uint32 mNextBatchID = 1;
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uint32 mNextGeometryID = 1;
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/// Cached geometries and their IDs
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UnorderedMap<GeometryRef, uint32> mGeometries;
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/// Data that is being accumulated for the current frame
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Frame mCurrentFrame;
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};
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JPH_NAMESPACE_END
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