forked from dolphin-emu/dolphin
120 lines
2.7 KiB
C++
120 lines
2.7 KiB
C++
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#include "stdafx.h"
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#include "D3DShader.h"
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#include "VertexShader.h"
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#include "BPStructs.h"
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//I hope we don't get too many hash collisions :p
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//all these magic numbers are primes, it should help a bit
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xformhash GetCurrentXForm()
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{
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//return 0;
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xformhash hash = bpmem.genMode.numtexgens*8*17;
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/*
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for (int i=0; i<bpmem.genMode.numtevstages+1; i++)
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{
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hash = _rotl(hash,3) ^ (bpmem.combiners[i].colorC.hex*13);
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hash = _rotl(hash,7) ^ ((bpmem.combiners[i].alphaC.hex&0xFFFFFFFC)*3);
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}
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for (int i=0; i<bpmem.genMode.numtevstages/2+1; i++)
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{
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hash = _rotl(hash,13) ^ (bpmem.tevorders[i].hex*7);
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}
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for (int i=0; i<8; i++)
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{
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hash = _rotl(hash,3) ^ bpmem.tevksel[i].swap1;
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hash = _rotl(hash,3) ^ bpmem.tevksel[i].swap2;
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}*/
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// to hash: bpmem.tevorders[j/2].getTexCoord(j&1);
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// also texcoords array
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return hash;
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}
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char text2[65536];
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#define WRITE p+=sprintf
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void WriteTexgen(char *&p, int n);
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LPDIRECT3DVERTEXSHADER9 GenerateVertexShader()
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{
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int numColors = 2;
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int numUV = 8;
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int numTexgen = bpmem.genMode.numtexgens;
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int numNormals = 3;
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bool fogEnable = false;
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bool hasNormal = true;
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char *p = text2;
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WRITE(p,"//Vertex Shader\n");
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WRITE(p,"//%i uv->%i texgens, %i colors\n",numUV,numTexgen,numColors);
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WRITE(p,"\n");
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WRITE(p,"struct VS_INPUT {\n");
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WRITE(p," float4 pos : POSITION;\n");
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WRITE(p," float3 normal : NORMAL;\n");
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if (numColors)
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WRITE(p," float4 colors[%i] : COLOR0;\n",numColors);
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if (numUV)
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WRITE(p," float3 uv[%i] : TEXCOORD0;\n",numUV);
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WRITE(p,"};\n");
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WRITE(p,"\n");
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WRITE(p,"struct VS_OUTPUT {\n");
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WRITE(p," float4 pos : POSITION;\n");
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WRITE(p," float4 colors[%i] : COLOR0;\n",numColors);
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if (numTexgen)
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WRITE(p," float4 uv[%i] : TEXCOORD0;\n",numTexgen);
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if (fogEnable)
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WRITE(p," float fog : FOG;\n",numTexgen);
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WRITE(p,"};\n");
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WRITE(p,"\n");
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WRITE(p,"uniform matrix matWorldViewProj : register(c0);\n");
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WRITE(p,"\n");
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WRITE(p,"VS_OUTPUT main(const VS_INPUT input)\n");
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WRITE(p,"{\n");
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WRITE(p," VS_OUTPUT output;");
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WRITE(p,"\n");
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WRITE(p," output.pos = mul(matWorldViewProj, input.pos);\n");
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for (int i = 0; i < (int)bpmem.genMode.numtexgens; i++)
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{
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//build the equation for this stage
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WriteTexgen(p,i);
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}
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WRITE(p," for (int i=0; i<2; i++)\n output.colors[i] = input.colors[i];\n");
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// WRITE(p," output.fog = 0.0f;");
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WRITE(p,"return output;\n");
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WRITE(p,"}\n");
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WRITE(p,"\0");
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// MessageBox(0,text2,0,0);
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return D3D::CompileVShader(text2,(int)(p-text2));
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}
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/*
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* xform->vertexshader ideas
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*/
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void WriteTexgen(char *&p, int n)
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{
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WRITE(p," output.uv[%i] = float4(input.uv[%i].xy,0,input.uv[%i].z);\n",n,n,n);
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}
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void WriteLight(int color, int component)
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{
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}
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