diff options
Diffstat (limited to 'Source/Core/VideoCommon/Src/VertexShader.cpp')
| -rw-r--r-- | Source/Core/VideoCommon/Src/VertexShader.cpp | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/Source/Core/VideoCommon/Src/VertexShader.cpp b/Source/Core/VideoCommon/Src/VertexShader.cpp index 04acf1c651..5fd307b881 100644 --- a/Source/Core/VideoCommon/Src/VertexShader.cpp +++ b/Source/Core/VideoCommon/Src/VertexShader.cpp @@ -23,6 +23,52 @@ #include "BPMemory.h" #include "VertexShader.h" +// Mash together all the inputs that contribute to the code of a generated vertex shader into +// a unique identifier, basically containing all the bits. Yup, it's a lot .... +void GetVertexShaderId(VERTEXSHADERUID& vid, u32 components, u32 zbufrender) +{ + vid.values[0] = components | + (xfregs.numTexGens << 23) | + (xfregs.nNumChans << 27) | + ((u32)xfregs.bEnableDualTexTransform << 29) | + (zbufrender << 30); + + for (int i = 0; i < 2; ++i) { + vid.values[1+i] = xfregs.colChans[i].color.enablelighting ? + (u32)xfregs.colChans[i].color.hex : + (u32)xfregs.colChans[i].color.matsource; + vid.values[1+i] |= (xfregs.colChans[i].alpha.enablelighting ? + (u32)xfregs.colChans[i].alpha.hex : + (u32)xfregs.colChans[i].alpha.matsource) << 15; + } + + // fog + vid.values[1] |= (((u32)bpmem.fog.c_proj_fsel.fsel & 3) << 30); + vid.values[2] |= (((u32)bpmem.fog.c_proj_fsel.fsel >> 2) << 30); + + u32* pcurvalue = &vid.values[3]; + for (int i = 0; i < xfregs.numTexGens; ++i) { + TexMtxInfo tinfo = xfregs.texcoords[i].texmtxinfo; + if (tinfo.texgentype != XF_TEXGEN_EMBOSS_MAP) + tinfo.hex &= 0x7ff; + if (tinfo.texgentype != XF_TEXGEN_REGULAR) + tinfo.projection = 0; + + u32 val = ((tinfo.hex >> 1) & 0x1ffff); + if (xfregs.bEnableDualTexTransform && tinfo.texgentype == XF_TEXGEN_REGULAR) { + // rewrite normalization and post index + val |= ((u32)xfregs.texcoords[i].postmtxinfo.index << 17) | ((u32)xfregs.texcoords[i].postmtxinfo.normalize << 23); + } + + switch (i & 3) { + case 0: pcurvalue[0] |= val; break; + case 1: pcurvalue[0] |= val << 24; pcurvalue[1] = val >> 8; ++pcurvalue; break; + case 2: pcurvalue[0] |= val << 16; pcurvalue[1] = val >> 16; ++pcurvalue; break; + case 3: pcurvalue[0] |= val << 8; ++pcurvalue; break; + } + } +} + static char text[16384]; #define WRITE p+=sprintf |