mirror of
https://github.com/aap/librw.git
synced 2025-01-24 01:32:18 +00:00
103 lines
2.7 KiB
C++
103 lines
2.7 KiB
C++
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <cassert>
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#include "../rwbase.h"
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#include "../rwplg.h"
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#include "../rwpipeline.h"
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#include "../rwobjects.h"
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#include "../rwengine.h"
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#include "rwd3d.h"
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#include "rwd3d9.h"
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namespace rw {
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namespace d3d {
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#ifdef RW_D3D9
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// might want to tweak this
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#define NUMINDICES 10000
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#define NUMVERTICES 10000
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static int primTypeMap[] = {
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D3DPT_POINTLIST, // invalid
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D3DPT_LINELIST,
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D3DPT_LINESTRIP,
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D3DPT_TRIANGLELIST,
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D3DPT_TRIANGLESTRIP,
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D3DPT_TRIANGLEFAN,
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D3DPT_POINTLIST, // actually not supported!
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};
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static IDirect3DVertexDeclaration9 *im2ddecl;
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static IDirect3DVertexBuffer9 *im2dvertbuf;
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static IDirect3DIndexBuffer9 *im2dindbuf;
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void
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openIm2D(void)
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{
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D3DVERTEXELEMENT9 elements[4] = {
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{ 0, 0, D3DDECLTYPE_FLOAT4, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_POSITIONT, 0 },
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{ 0, offsetof(Im2DVertex, color), D3DDECLTYPE_D3DCOLOR, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_COLOR, 0 },
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{ 0, offsetof(Im2DVertex, u), D3DDECLTYPE_FLOAT2, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_TEXCOORD, 0 },
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D3DDECL_END()
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};
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d3ddevice->CreateVertexDeclaration((D3DVERTEXELEMENT9*)elements, &im2ddecl);
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im2dvertbuf = (IDirect3DVertexBuffer9*)createVertexBuffer(NUMVERTICES*sizeof(Im2DVertex), 0, D3DPOOL_MANAGED);
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im2dindbuf = (IDirect3DIndexBuffer9*)createIndexBuffer(NUMINDICES*sizeof(uint16));
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}
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void
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im2DRenderIndexedPrimitive(PrimitiveType primType,
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void *vertices, int32 numVertices, void *indices, int32 numIndices)
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{
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if(numVertices > NUMVERTICES ||
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numIndices > NUMINDICES){
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// TODO: error
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return;
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}
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uint16 *lockedindices = lockIndices(im2dindbuf, 0, numIndices*sizeof(uint16), 0);
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memcpy(lockedindices, indices, numIndices*sizeof(uint16));
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unlockIndices(im2dindbuf);
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uint8 *lockedvertices = lockVertices(im2dvertbuf, 0, numVertices*sizeof(Im2DVertex), D3DLOCK_NOSYSLOCK);
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memcpy(lockedvertices, vertices, numVertices*sizeof(Im2DVertex));
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unlockVertices(im2dvertbuf);
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d3ddevice->SetStreamSource(0, im2dvertbuf, 0, sizeof(Im2DVertex));
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d3ddevice->SetIndices(im2dindbuf);
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d3ddevice->SetVertexDeclaration(im2ddecl);
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d3d::setTexture(0, engine->imtexture);
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d3d::flushCache();
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uint32 primCount = 0;
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switch(primType){
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case PRIMTYPELINELIST:
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primCount = numIndices/2;
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break;
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case PRIMTYPEPOLYLINE:
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primCount = numIndices-1;
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break;
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case PRIMTYPETRILIST:
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primCount = numIndices/3;
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break;
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case PRIMTYPETRISTRIP:
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primCount = numIndices-2;
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break;
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case PRIMTYPETRIFAN:
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primCount = numIndices-2;
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break;
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case PRIMTYPEPOINTLIST:
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primCount = numIndices;
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break;
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}
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d3ddevice->DrawIndexedPrimitive((D3DPRIMITIVETYPE)primTypeMap[primType], 0,
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0, numVertices,
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0, primCount);
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}
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#endif
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}
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}
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