diff options
Diffstat (limited to 'Source/Core/VideoCommon/Src/PixelShader.cpp')
| -rw-r--r-- | Source/Core/VideoCommon/Src/PixelShader.cpp | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/Source/Core/VideoCommon/Src/PixelShader.cpp b/Source/Core/VideoCommon/Src/PixelShader.cpp index 9b5615be18..779898bafa 100644 --- a/Source/Core/VideoCommon/Src/PixelShader.cpp +++ b/Source/Core/VideoCommon/Src/PixelShader.cpp @@ -24,6 +24,99 @@ #include "XFMemory.h" // for texture projection mode #include "BPMemory.h" +// Mash together all the inputs that contribute to the code of a generated pixel shader into +// a unique identifier, basically containing all the bits. Yup, it's a lot .... +void GetPixelShaderId(PIXELSHADERUID &uid, u32 s_texturemask, u32 zbufrender, u32 zBufRenderToCol0) +{ + u32 projtexcoords = 0; + for (u32 i = 0; i < (u32)bpmem.genMode.numtevstages + 1; i++) { + if (bpmem.tevorders[i/2].getEnable(i&1)) { + int texcoord = bpmem.tevorders[i/2].getTexCoord(i&1); + if (xfregs.texcoords[texcoord].texmtxinfo.projection ) + projtexcoords |= 1 << texcoord; + } + } + uid.values[0] = (u32)bpmem.genMode.numtevstages | + ((u32)bpmem.genMode.numindstages << 4) | + ((u32)bpmem.genMode.numtexgens << 7) | + ((u32)bpmem.dstalpha.enable << 11) | + ((u32)((bpmem.alphaFunc.hex >> 16) & 0xff) << 12) | + (projtexcoords << 20) | + ((u32)bpmem.ztex2.op << 28) | + (zbufrender << 30) | + (zBufRenderToCol0 << 31); + + uid.values[0] = (uid.values[0] & ~0x0ff00000) | (projtexcoords << 20); + // swap table + for (int i = 0; i < 8; i += 2) + ((u8*)&uid.values[1])[i/2] = (bpmem.tevksel[i].hex & 0xf) | ((bpmem.tevksel[i + 1].hex & 0xf) << 4); + + uid.values[2] = s_texturemask; + int hdr = 3; + u32* pcurvalue = &uid.values[hdr]; + for (u32 i = 0; i < (u32)bpmem.genMode.numtevstages+1; ++i) { + TevStageCombiner::ColorCombiner &cc = bpmem.combiners[i].colorC; + TevStageCombiner::AlphaCombiner &ac = bpmem.combiners[i].alphaC; + + u32 val0 = cc.hex&0xffffff; + u32 val1 = ac.hex&0xffffff; + val0 |= bpmem.tevksel[i/2].getKC(i&1)<<24; + val1 |= bpmem.tevksel[i/2].getKA(i&1)<<24; + pcurvalue[0] = val0; + pcurvalue[1] = val1; + pcurvalue += 2; + } + + for (u32 i = 0; i < ((u32)bpmem.genMode.numtevstages+1)/2; ++i) { + u32 val0, val1; + if (bpmem.tevorders[i].hex & 0x40) + val0 = bpmem.tevorders[i].hex & 0x3ff; + else + val0 = bpmem.tevorders[i].hex & 0x380; + if (bpmem.tevorders[i].hex & 0x40000) + val1 = (bpmem.tevorders[i].hex & 0x3ff000) >> 12; + else + val1 = (bpmem.tevorders[i].hex & 0x380000) >> 12; + + switch (i % 3) { + case 0: pcurvalue[0] = val0|(val1<<10); break; + case 1: pcurvalue[0] |= val0<<20; pcurvalue[1] = val1; pcurvalue++; break; + case 2: pcurvalue[1] |= (val0<<10)|(val1<<20); pcurvalue++; break; + } + } + + if ((bpmem.genMode.numtevstages + 1) & 1) { // odd + u32 val0; + if (bpmem.tevorders[bpmem.genMode.numtevstages/2].hex & 0x40) + val0 = bpmem.tevorders[bpmem.genMode.numtevstages/2].hex&0x3ff; + else + val0 = bpmem.tevorders[bpmem.genMode.numtevstages/2].hex & 0x380; + + switch (bpmem.genMode.numtevstages % 3) { + case 0: pcurvalue[0] = val0; break; + case 1: pcurvalue[0] |= val0 << 20; break; + case 2: pcurvalue[1] |= val0 << 10; pcurvalue++; break; + } + } + + if ((bpmem.genMode.numtevstages % 3) != 2) + ++pcurvalue; + + uid.tevstages = (u32)(pcurvalue-&uid.values[0]-hdr); + + for (u32 i = 0; i < bpmem.genMode.numindstages; ++i) { + u32 val = bpmem.tevind[i].hex & 0x1fffff; // 21 bits + switch (i%3) { + case 0: pcurvalue[0] = val; break; + case 1: pcurvalue[0] |= val << 21; pcurvalue[1] = val >> 11; ++pcurvalue; break; + case 2: pcurvalue[0] |= val << 10; ++pcurvalue; break; + } + } + + // yeah, well .... + uid.indstages = (u32)(pcurvalue - &uid.values[0] - 2 - uid.tevstages); +} + // old tev->pixelshader notes // // color for this stage (alpha, color) is given by bpmem.tevorders[0].colorchan0 |