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53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
#include "common.h"
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#include "RenderBuffer.h"
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int32 TempBufferVerticesStored;
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int32 TempBufferIndicesStored;
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RwIm3DVertex TempBufferRenderVertices[TEMPBUFFERVERTSIZE];
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RwImVertexIndex TempBufferRenderIndexList[TEMPBUFFERINDEXSIZE];
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int RenderBuffer::VerticesToBeStored;
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int RenderBuffer::IndicesToBeStored;
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void
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RenderBuffer::ClearRenderBuffer(void)
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{
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TempBufferVerticesStored = 0;
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TempBufferIndicesStored = 0;
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}
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void
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RenderBuffer::StartStoring(int numIndices, int numVertices, RwImVertexIndex **indexStart, RwIm3DVertex **vertexStart)
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{
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if(TempBufferIndicesStored + numIndices >= TEMPBUFFERINDEXSIZE)
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RenderStuffInBuffer();
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if(TempBufferVerticesStored + numVertices >= TEMPBUFFERVERTSIZE)
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RenderStuffInBuffer();
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*indexStart = &TempBufferRenderIndexList[TempBufferIndicesStored];
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*vertexStart = &TempBufferRenderVertices[TempBufferVerticesStored];
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IndicesToBeStored = numIndices;
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VerticesToBeStored = numVertices;
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}
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void
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RenderBuffer::StopStoring(void)
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{
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int i;
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for(i = TempBufferIndicesStored; i < TempBufferIndicesStored+IndicesToBeStored; i++)
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TempBufferRenderIndexList[i] += TempBufferVerticesStored;
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TempBufferIndicesStored += IndicesToBeStored;
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TempBufferVerticesStored += VerticesToBeStored;
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}
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void
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RenderBuffer::RenderStuffInBuffer(void)
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{
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if(TempBufferVerticesStored && RwIm3DTransform(TempBufferRenderVertices, TempBufferVerticesStored, nil, rwIM3D_VERTEXUV)){
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RwIm3DRenderIndexedPrimitive(rwPRIMTYPETRILIST, TempBufferRenderIndexList, TempBufferIndicesStored);
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RwIm3DEnd();
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}
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ClearRenderBuffer();
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}
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