mirror of
https://github.com/dolphin-emu/dolphin.git
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8da425b008
Block braces on new lines. Also killed off trailing whitespace and dangling elses. Spaced some things out to make them more readable (only in places where it looked like a bit of a clusterfuck).
1363 lines
46 KiB
C++
1363 lines
46 KiB
C++
// Copyright 2013 Dolphin Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#include <stdio.h>
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#include <cmath>
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#include <assert.h>
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#include <locale.h>
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#include "LightingShaderGen.h"
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#include "PixelShaderGen.h"
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#include "XFMemory.h" // for texture projection mode
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#include "BPMemory.h"
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#include "VideoConfig.h"
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#include "NativeVertexFormat.h"
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static void StageHash(u32 stage, u32* out)
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{
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out[0] |= bpmem.combiners[stage].colorC.hex & 0xFFFFFF; // 24
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u32 alphaC = bpmem.combiners[stage].alphaC.hex & 0xFFFFF0; // 24, strip out tswap and rswap for now
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out[0] |= (alphaC&0xF0) << 24; // 8
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out[1] |= alphaC >> 8; // 16
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// reserve 3 bits for bpmem.tevorders[stage/2].getTexMap
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out[1] |= bpmem.tevorders[stage/2].getTexCoord(stage&1) << 19; // 3
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out[1] |= bpmem.tevorders[stage/2].getEnable(stage&1) << 22; // 1
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// reserve 3 bits for bpmem.tevorders[stage/2].getColorChan
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bool bHasIndStage = bpmem.tevind[stage].IsActive() && bpmem.tevind[stage].bt < bpmem.genMode.numindstages;
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out[2] |= bHasIndStage << 2; // 1
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bool needstexcoord = false;
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if (bHasIndStage)
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{
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out[2] |= (bpmem.tevind[stage].hex & 0x17FFFF) << 3; // 21, TODO: needs an explanation
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needstexcoord = true;
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}
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TevStageCombiner::ColorCombiner& cc = bpmem.combiners[stage].colorC;
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TevStageCombiner::AlphaCombiner& ac = bpmem.combiners[stage].alphaC;
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if(cc.a == TEVCOLORARG_RASA || cc.a == TEVCOLORARG_RASC
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|| cc.b == TEVCOLORARG_RASA || cc.b == TEVCOLORARG_RASC
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|| cc.c == TEVCOLORARG_RASA || cc.c == TEVCOLORARG_RASC
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|| cc.d == TEVCOLORARG_RASA || cc.d == TEVCOLORARG_RASC
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|| ac.a == TEVALPHAARG_RASA || ac.b == TEVALPHAARG_RASA
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|| ac.c == TEVALPHAARG_RASA || ac.d == TEVALPHAARG_RASA)
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{
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out[0] |= bpmem.combiners[stage].alphaC.rswap;
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out[2] |= bpmem.tevksel[bpmem.combiners[stage].alphaC.rswap*2].swap1 << 24; // 2
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out[2] |= bpmem.tevksel[bpmem.combiners[stage].alphaC.rswap*2].swap2 << 26; // 2
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out[2] |= bpmem.tevksel[bpmem.combiners[stage].alphaC.rswap*2+1].swap1 << 28; // 2
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out[2] |= bpmem.tevksel[bpmem.combiners[stage].alphaC.rswap*2+1].swap2 << 30; // 2
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out[1] |= (bpmem.tevorders[stage/2].getColorChan(stage&1)&1) << 23;
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out[2] |= (bpmem.tevorders[stage/2].getColorChan(stage&1)&0x6) >> 1;
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}
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out[3] |= bpmem.tevorders[stage/2].getEnable(stage&1);
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if (bpmem.tevorders[stage/2].getEnable(stage&1))
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{
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if (bHasIndStage)
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needstexcoord = true;
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out[0] |= bpmem.combiners[stage].alphaC.tswap;
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out[3] |= bpmem.tevksel[bpmem.combiners[stage].alphaC.tswap*2].swap1 << 1; // 2
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out[3] |= bpmem.tevksel[bpmem.combiners[stage].alphaC.tswap*2].swap2 << 3; // 2
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out[3] |= bpmem.tevksel[bpmem.combiners[stage].alphaC.tswap*2+1].swap1 << 5; // 2
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out[3] |= bpmem.tevksel[bpmem.combiners[stage].alphaC.tswap*2+1].swap2 << 7; // 2
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out[1] |= bpmem.tevorders[stage/2].getTexMap(stage&1) << 16;
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}
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if (cc.a == TEVCOLORARG_KONST || cc.b == TEVCOLORARG_KONST || cc.c == TEVCOLORARG_KONST || cc.d == TEVCOLORARG_KONST
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|| ac.a == TEVALPHAARG_KONST || ac.b == TEVALPHAARG_KONST || ac.c == TEVALPHAARG_KONST || ac.d == TEVALPHAARG_KONST)
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{
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out[3] |= bpmem.tevksel[stage/2].getKC(stage&1) << 9; // 5
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out[3] |= bpmem.tevksel[stage/2].getKA(stage&1) << 14; // 5
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}
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if (needstexcoord)
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{
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out[1] |= bpmem.tevorders[stage/2].getTexCoord(stage&1) << 16;
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}
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}
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// Mash together all the inputs that contribute to the code of a generated pixel shader into
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// a unique identifier, basically containing all the bits. Yup, it's a lot ....
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// It would likely be a lot more efficient to build this incrementally as the attributes
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// are set...
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void GetPixelShaderId(PIXELSHADERUID *uid, DSTALPHA_MODE dstAlphaMode, u32 components)
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{
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memset(uid->values, 0, sizeof(uid->values));
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uid->values[0] |= bpmem.genMode.numtevstages; // 4
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uid->values[0] |= bpmem.genMode.numtexgens << 4; // 4
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uid->values[0] |= dstAlphaMode << 8; // 2
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bool enablePL = g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting;
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uid->values[0] |= enablePL << 10; // 1
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if (!enablePL)
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{
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uid->values[0] |= xfregs.numTexGen.numTexGens << 11; // 4
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}
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AlphaTest::TEST_RESULT alphaPreTest = bpmem.alpha_test.TestResult();
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uid->values[0] |= alphaPreTest << 15; // 2
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// numtexgens should be <= 8
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for (unsigned int i = 0; i < bpmem.genMode.numtexgens; ++i)
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{
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uid->values[0] |= xfregs.texMtxInfo[i].projection << (17+i); // 1
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}
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uid->values[1] = bpmem.genMode.numindstages; // 3
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u32 indirectStagesUsed = 0;
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for (unsigned int i = 0; i < bpmem.genMode.numindstages; ++i)
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{
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if (bpmem.tevind[i].IsActive() && bpmem.tevind[i].bt < bpmem.genMode.numindstages)
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indirectStagesUsed |= (1 << bpmem.tevind[i].bt);
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}
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assert(indirectStagesUsed == (indirectStagesUsed & 0xF));
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uid->values[1] |= indirectStagesUsed << 3; // 4;
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for (unsigned int i = 0; i < bpmem.genMode.numindstages; ++i)
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{
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if (indirectStagesUsed & (1 << i))
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{
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uid->values[1] |= (bpmem.tevindref.getTexCoord(i) < bpmem.genMode.numtexgens) << (7 + 3*i); // 1
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if (bpmem.tevindref.getTexCoord(i) < bpmem.genMode.numtexgens)
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uid->values[1] |= bpmem.tevindref.getTexCoord(i) << (8 + 3*i); // 2
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}
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}
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u32* ptr = &uid->values[2];
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for (unsigned int i = 0; i < bpmem.genMode.numtevstages+1u; ++i)
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{
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StageHash(i, ptr);
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ptr += 4; // max: ptr = &uid->values[66]
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}
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ptr[0] |= bpmem.alpha_test.comp0; // 3
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ptr[0] |= bpmem.alpha_test.comp1 << 3; // 3
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ptr[0] |= bpmem.alpha_test.logic << 6; // 2
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ptr[0] |= bpmem.ztex2.op << 8; // 2
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ptr[0] |= bpmem.zcontrol.early_ztest << 10; // 1
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ptr[0] |= bpmem.zmode.testenable << 11; // 1
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ptr[0] |= bpmem.zmode.updateenable << 12; // 1
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if (dstAlphaMode != DSTALPHA_ALPHA_PASS)
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{
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ptr[0] |= bpmem.fog.c_proj_fsel.fsel << 13; // 3
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if (bpmem.fog.c_proj_fsel.fsel != 0)
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{
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ptr[0] |= bpmem.fog.c_proj_fsel.proj << 16; // 1
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ptr[0] |= bpmem.fogRange.Base.Enabled << 17; // 1
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}
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}
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++ptr;
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if (enablePL)
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{
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ptr += GetLightingShaderId(ptr);
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*ptr++ = components;
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}
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uid->num_values = int(ptr - uid->values);
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}
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void GetSafePixelShaderId(PIXELSHADERUIDSAFE *uid, DSTALPHA_MODE dstAlphaMode, u32 components)
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{
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memset(uid->values, 0, sizeof(uid->values));
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u32* ptr = uid->values;
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*ptr++ = dstAlphaMode; // 0
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*ptr++ = bpmem.genMode.hex; // 1
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*ptr++ = bpmem.ztex2.hex; // 2
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*ptr++ = bpmem.zcontrol.hex; // 3
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*ptr++ = bpmem.zmode.hex; // 4
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*ptr++ = g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting; // 5
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*ptr++ = xfregs.numTexGen.hex; // 6
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if (g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting)
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{
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*ptr++ = xfregs.color[0].hex;
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*ptr++ = xfregs.alpha[0].hex;
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*ptr++ = xfregs.color[1].hex;
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*ptr++ = xfregs.alpha[1].hex;
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*ptr++ = components;
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}
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for (unsigned int i = 0; i < 8; ++i)
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*ptr++ = xfregs.texMtxInfo[i].hex; // 7-14
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for (unsigned int i = 0; i < 16; ++i)
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*ptr++ = bpmem.tevind[i].hex; // 15-30
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*ptr++ = bpmem.tevindref.hex; // 31
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for (u32 i = 0; i < bpmem.genMode.numtevstages+1u; ++i) // up to 16 times
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{
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*ptr++ = bpmem.combiners[i].colorC.hex; // 32+5*i
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*ptr++ = bpmem.combiners[i].alphaC.hex; // 33+5*i
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*ptr++ = bpmem.tevind[i].hex; // 34+5*i
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*ptr++ = bpmem.tevksel[i/2].hex; // 35+5*i
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*ptr++ = bpmem.tevorders[i/2].hex; // 36+5*i
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}
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ptr = &uid->values[112];
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*ptr++ = bpmem.alpha_test.hex; // 112
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*ptr++ = bpmem.fog.c_proj_fsel.hex; // 113
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*ptr++ = bpmem.fogRange.Base.hex; // 114
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_assert_((ptr - uid->values) == uid->GetNumValues());
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}
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void ValidatePixelShaderIDs(API_TYPE api, PIXELSHADERUIDSAFE old_id, const std::string& old_code, DSTALPHA_MODE dstAlphaMode, u32 components)
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{
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if (!g_ActiveConfig.bEnableShaderDebugging)
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return;
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PIXELSHADERUIDSAFE new_id;
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GetSafePixelShaderId(&new_id, dstAlphaMode, components);
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if (!(old_id == new_id))
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{
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std::string new_code(GeneratePixelShaderCode(dstAlphaMode, api, components));
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if (old_code != new_code)
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{
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_assert_(old_id.GetNumValues() == new_id.GetNumValues());
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char msg[8192];
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char* ptr = msg;
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ptr += sprintf(ptr, "Pixel shader IDs matched but unique IDs did not!\nUnique IDs (old <-> new):\n");
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const int N = new_id.GetNumValues();
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for (int i = 0; i < N/2; ++i)
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ptr += sprintf(ptr, "%02d, %08X %08X | %08X %08X\n", 2*i, old_id.values[2*i], old_id.values[2*i+1],
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new_id.values[2*i], new_id.values[2*i+1]);
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if (N % 2)
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ptr += sprintf(ptr, "%02d, %08X | %08X\n", N-1, old_id.values[N-1], new_id.values[N-1]);
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static int num_failures = 0;
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char szTemp[MAX_PATH];
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sprintf(szTemp, "%spsuid_mismatch_%04i.txt", File::GetUserPath(D_DUMP_IDX).c_str(), num_failures++);
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std::ofstream file;
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OpenFStream(file, szTemp, std::ios_base::out);
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file << msg;
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file << "\n\nOld shader code:\n" << old_code;
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file << "\n\nNew shader code:\n" << new_code;
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file.close();
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PanicAlert("Unique pixel shader ID mismatch!\n\nReport this to the devs, along with the contents of %s.", szTemp);
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}
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}
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}
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// old tev->pixelshader notes
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//
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// color for this stage (alpha, color) is given by bpmem.tevorders[0].colorchan0
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// konstant for this stage (alpha, color) is given by bpmem.tevksel
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// inputs are given by bpmem.combiners[0].colorC.a/b/c/d << could be current channel color
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// according to GXTevColorArg table above
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// output is given by .outreg
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// tevtemp is set according to swapmodetables and
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static void WriteStage(char *&p, int n, API_TYPE ApiType);
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static void SampleTexture(char *&p, const char *destination, const char *texcoords, const char *texswap, int texmap, API_TYPE ApiType);
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// static void WriteAlphaCompare(char *&p, int num, int comp);
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static void WriteAlphaTest(char *&p, API_TYPE ApiType,DSTALPHA_MODE dstAlphaMode, bool per_pixel_depth);
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static void WriteFog(char *&p);
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static const char *tevKSelTableC[] = // KCSEL
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{
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"1.0f,1.0f,1.0f", // 1 = 0x00
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"0.875f,0.875f,0.875f", // 7_8 = 0x01
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"0.75f,0.75f,0.75f", // 3_4 = 0x02
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"0.625f,0.625f,0.625f", // 5_8 = 0x03
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"0.5f,0.5f,0.5f", // 1_2 = 0x04
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"0.375f,0.375f,0.375f", // 3_8 = 0x05
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"0.25f,0.25f,0.25f", // 1_4 = 0x06
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"0.125f,0.125f,0.125f", // 1_8 = 0x07
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"ERROR1", // 0x08
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"ERROR2", // 0x09
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"ERROR3", // 0x0a
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"ERROR4", // 0x0b
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I_KCOLORS"[0].rgb", // K0 = 0x0C
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I_KCOLORS"[1].rgb", // K1 = 0x0D
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I_KCOLORS"[2].rgb", // K2 = 0x0E
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I_KCOLORS"[3].rgb", // K3 = 0x0F
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I_KCOLORS"[0].rrr", // K0_R = 0x10
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I_KCOLORS"[1].rrr", // K1_R = 0x11
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I_KCOLORS"[2].rrr", // K2_R = 0x12
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I_KCOLORS"[3].rrr", // K3_R = 0x13
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I_KCOLORS"[0].ggg", // K0_G = 0x14
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I_KCOLORS"[1].ggg", // K1_G = 0x15
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I_KCOLORS"[2].ggg", // K2_G = 0x16
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I_KCOLORS"[3].ggg", // K3_G = 0x17
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I_KCOLORS"[0].bbb", // K0_B = 0x18
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I_KCOLORS"[1].bbb", // K1_B = 0x19
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I_KCOLORS"[2].bbb", // K2_B = 0x1A
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I_KCOLORS"[3].bbb", // K3_B = 0x1B
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I_KCOLORS"[0].aaa", // K0_A = 0x1C
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I_KCOLORS"[1].aaa", // K1_A = 0x1D
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I_KCOLORS"[2].aaa", // K2_A = 0x1E
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I_KCOLORS"[3].aaa", // K3_A = 0x1F
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};
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static const char *tevKSelTableA[] = // KASEL
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{
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"1.0f", // 1 = 0x00
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"0.875f",// 7_8 = 0x01
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"0.75f", // 3_4 = 0x02
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"0.625f",// 5_8 = 0x03
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"0.5f", // 1_2 = 0x04
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"0.375f",// 3_8 = 0x05
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"0.25f", // 1_4 = 0x06
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"0.125f",// 1_8 = 0x07
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"ERROR5", // 0x08
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"ERROR6", // 0x09
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"ERROR7", // 0x0a
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"ERROR8", // 0x0b
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"ERROR9", // 0x0c
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"ERROR10", // 0x0d
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"ERROR11", // 0x0e
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"ERROR12", // 0x0f
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I_KCOLORS"[0].r", // K0_R = 0x10
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I_KCOLORS"[1].r", // K1_R = 0x11
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I_KCOLORS"[2].r", // K2_R = 0x12
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I_KCOLORS"[3].r", // K3_R = 0x13
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I_KCOLORS"[0].g", // K0_G = 0x14
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I_KCOLORS"[1].g", // K1_G = 0x15
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I_KCOLORS"[2].g", // K2_G = 0x16
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I_KCOLORS"[3].g", // K3_G = 0x17
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I_KCOLORS"[0].b", // K0_B = 0x18
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I_KCOLORS"[1].b", // K1_B = 0x19
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I_KCOLORS"[2].b", // K2_B = 0x1A
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I_KCOLORS"[3].b", // K3_B = 0x1B
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I_KCOLORS"[0].a", // K0_A = 0x1C
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I_KCOLORS"[1].a", // K1_A = 0x1D
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I_KCOLORS"[2].a", // K2_A = 0x1E
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I_KCOLORS"[3].a", // K3_A = 0x1F
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};
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static const char *tevScaleTable[] = // CS
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{
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"1.0f", // SCALE_1
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"2.0f", // SCALE_2
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"4.0f", // SCALE_4
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"0.5f", // DIVIDE_2
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};
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static const char *tevBiasTable[] = // TB
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{
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"", // ZERO,
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"+0.5f", // ADDHALF,
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"-0.5f", // SUBHALF,
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"",
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};
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static const char *tevOpTable[] = { // TEV
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"+", // TEVOP_ADD = 0,
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"-", // TEVOP_SUB = 1,
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};
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static const char *tevCInputTable[] = // CC
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{
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"(prev.rgb)", // CPREV,
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"(prev.aaa)", // APREV,
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"(c0.rgb)", // C0,
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"(c0.aaa)", // A0,
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"(c1.rgb)", // C1,
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"(c1.aaa)", // A1,
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"(c2.rgb)", // C2,
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"(c2.aaa)", // A2,
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"(textemp.rgb)", // TEXC,
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"(textemp.aaa)", // TEXA,
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"(rastemp.rgb)", // RASC,
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"(rastemp.aaa)", // RASA,
|
|
"float3(1.0f, 1.0f, 1.0f)", // ONE
|
|
"float3(0.5f, 0.5f, 0.5f)", // HALF
|
|
"(konsttemp.rgb)", //"konsttemp.rgb", // KONST
|
|
"float3(0.0f, 0.0f, 0.0f)", // ZERO
|
|
///added extra values to map clamped values
|
|
"(cprev.rgb)", // CPREV,
|
|
"(cprev.aaa)", // APREV,
|
|
"(cc0.rgb)", // C0,
|
|
"(cc0.aaa)", // A0,
|
|
"(cc1.rgb)", // C1,
|
|
"(cc1.aaa)", // A1,
|
|
"(cc2.rgb)", // C2,
|
|
"(cc2.aaa)", // A2,
|
|
"(textemp.rgb)", // TEXC,
|
|
"(textemp.aaa)", // TEXA,
|
|
"(crastemp.rgb)", // RASC,
|
|
"(crastemp.aaa)", // RASA,
|
|
"float3(1.0f, 1.0f, 1.0f)", // ONE
|
|
"float3(0.5f, 0.5f, 0.5f)", // HALF
|
|
"(ckonsttemp.rgb)", //"konsttemp.rgb", // KONST
|
|
"float3(0.0f, 0.0f, 0.0f)", // ZERO
|
|
"PADERROR1", "PADERROR2", "PADERROR3", "PADERROR4"
|
|
};
|
|
|
|
static const char *tevAInputTable[] = // CA
|
|
{
|
|
"prev", // APREV,
|
|
"c0", // A0,
|
|
"c1", // A1,
|
|
"c2", // A2,
|
|
"textemp", // TEXA,
|
|
"rastemp", // RASA,
|
|
"konsttemp", // KONST, (hw1 had quarter)
|
|
"float4(0.0f, 0.0f, 0.0f, 0.0f)", // ZERO
|
|
///added extra values to map clamped values
|
|
"cprev", // APREV,
|
|
"cc0", // A0,
|
|
"cc1", // A1,
|
|
"cc2", // A2,
|
|
"textemp", // TEXA,
|
|
"crastemp", // RASA,
|
|
"ckonsttemp", // KONST, (hw1 had quarter)
|
|
"float4(0.0f, 0.0f, 0.0f, 0.0f)", // ZERO
|
|
"PADERROR5", "PADERROR6", "PADERROR7", "PADERROR8",
|
|
"PADERROR9", "PADERROR10", "PADERROR11", "PADERROR12",
|
|
};
|
|
|
|
static const char *tevRasTable[] =
|
|
{
|
|
"colors_0",
|
|
"colors_1",
|
|
"ERROR13", //2
|
|
"ERROR14", //3
|
|
"ERROR15", //4
|
|
"float4(alphabump,alphabump,alphabump,alphabump)", // use bump alpha
|
|
"(float4(alphabump,alphabump,alphabump,alphabump)*(255.0f/248.0f))", //normalized
|
|
"float4(0.0f, 0.0f, 0.0f, 0.0f)", // zero
|
|
};
|
|
|
|
//static const char *tevTexFunc[] = { "tex2D", "texRECT" };
|
|
|
|
static const char *tevCOutputTable[] = { "prev.rgb", "c0.rgb", "c1.rgb", "c2.rgb" };
|
|
static const char *tevAOutputTable[] = { "prev.a", "c0.a", "c1.a", "c2.a" };
|
|
static const char *tevIndAlphaSel[] = {"", "x", "y", "z"};
|
|
//static const char *tevIndAlphaScale[] = {"", "*32", "*16", "*8"};
|
|
static const char *tevIndAlphaScale[] = {"*(248.0f/255.0f)", "*(224.0f/255.0f)", "*(240.0f/255.0f)", "*(248.0f/255.0f)"};
|
|
static const char *tevIndBiasField[] = {"", "x", "y", "xy", "z", "xz", "yz", "xyz"}; // indexed by bias
|
|
static const char *tevIndBiasAdd[] = {"-128.0f", "1.0f", "1.0f", "1.0f" }; // indexed by fmt
|
|
static const char *tevIndWrapStart[] = {"0.0f", "256.0f", "128.0f", "64.0f", "32.0f", "16.0f", "0.001f" };
|
|
static const char *tevIndFmtScale[] = {"255.0f", "31.0f", "15.0f", "7.0f" };
|
|
|
|
#define WRITE p+=sprintf
|
|
|
|
static char swapModeTable[4][5];
|
|
|
|
static char text[16384];
|
|
|
|
struct RegisterState
|
|
{
|
|
bool ColorNeedOverflowControl;
|
|
bool AlphaNeedOverflowControl;
|
|
bool AuxStored;
|
|
};
|
|
|
|
static RegisterState RegisterStates[4];
|
|
|
|
static void BuildSwapModeTable()
|
|
{
|
|
static const char *swapColors = "rgba";
|
|
for (int i = 0; i < 4; i++)
|
|
{
|
|
swapModeTable[i][0] = swapColors[bpmem.tevksel[i*2].swap1];
|
|
swapModeTable[i][1] = swapColors[bpmem.tevksel[i*2].swap2];
|
|
swapModeTable[i][2] = swapColors[bpmem.tevksel[i*2+1].swap1];
|
|
swapModeTable[i][3] = swapColors[bpmem.tevksel[i*2+1].swap2];
|
|
swapModeTable[i][4] = 0;
|
|
}
|
|
}
|
|
|
|
const char* WriteRegister(API_TYPE ApiType, const char *prefix, const u32 num)
|
|
{
|
|
if (ApiType == API_OPENGL)
|
|
return ""; // Nothing to do here
|
|
static char result[64];
|
|
sprintf(result, " : register(%s%d)", prefix, num);
|
|
return result;
|
|
}
|
|
|
|
const char *WriteLocation(API_TYPE ApiType)
|
|
{
|
|
if (g_ActiveConfig.backend_info.bSupportsGLSLUBO)
|
|
return "";
|
|
static char result[64];
|
|
sprintf(result, "uniform ");
|
|
return result;
|
|
}
|
|
|
|
const char *GeneratePixelShaderCode(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType, u32 components)
|
|
{
|
|
setlocale(LC_NUMERIC, "C"); // Reset locale for compilation
|
|
text[sizeof(text) - 1] = 0x7C; // canary
|
|
|
|
BuildSwapModeTable(); // Needed for WriteStage
|
|
int numStages = bpmem.genMode.numtevstages + 1;
|
|
int numTexgen = bpmem.genMode.numtexgens;
|
|
|
|
bool per_pixel_depth = bpmem.ztex2.op != ZTEXTURE_DISABLE && !bpmem.zcontrol.early_ztest && bpmem.zmode.testenable;
|
|
|
|
char *p = text;
|
|
WRITE(p, "//Pixel Shader for TEV stages\n");
|
|
WRITE(p, "//%i TEV stages, %i texgens, XXX IND stages\n",
|
|
numStages, numTexgen/*, bpmem.genMode.numindstages*/);
|
|
|
|
int nIndirectStagesUsed = 0;
|
|
if (bpmem.genMode.numindstages > 0)
|
|
{
|
|
for (int i = 0; i < numStages; ++i)
|
|
{
|
|
if (bpmem.tevind[i].IsActive() && bpmem.tevind[i].bt < bpmem.genMode.numindstages)
|
|
nIndirectStagesUsed |= 1 << bpmem.tevind[i].bt;
|
|
}
|
|
}
|
|
|
|
if (ApiType == API_OPENGL)
|
|
{
|
|
|
|
// A function here
|
|
// Fmod implementation gleaned from Nvidia
|
|
// At http://http.developer.nvidia.com/Cg/fmod.html
|
|
WRITE(p, "float fmod( float x, float y )\n");
|
|
WRITE(p, "{\n");
|
|
WRITE(p, "\tfloat z = fract( abs( x / y) ) * abs( y );\n");
|
|
WRITE(p, "\treturn (x < 0) ? -z : z;\n");
|
|
WRITE(p, "}\n");
|
|
|
|
for (int i = 0; i < 8; ++i)
|
|
WRITE(p, "uniform sampler2D samp%d;\n", i);
|
|
}
|
|
else
|
|
{
|
|
// Declare samplers
|
|
if (ApiType != API_D3D11)
|
|
{
|
|
WRITE(p, "uniform sampler2D ");
|
|
}
|
|
else
|
|
{
|
|
WRITE(p, "sampler ");
|
|
}
|
|
|
|
bool bfirst = true;
|
|
for (int i = 0; i < 8; ++i)
|
|
{
|
|
WRITE(p, "%s samp%d %s", bfirst?"":",", i, WriteRegister(ApiType, "s", i));
|
|
bfirst = false;
|
|
}
|
|
WRITE(p, ";\n");
|
|
if (ApiType == API_D3D11)
|
|
{
|
|
WRITE(p, "Texture2D ");
|
|
bfirst = true;
|
|
for (int i = 0; i < 8; ++i)
|
|
{
|
|
WRITE(p, "%s Tex%d : register(t%d)", bfirst?"":",", i, i);
|
|
bfirst = false;
|
|
}
|
|
WRITE(p, ";\n");
|
|
}
|
|
}
|
|
|
|
WRITE(p, "\n");
|
|
if (g_ActiveConfig.backend_info.bSupportsGLSLUBO)
|
|
WRITE(p, "layout(std140) uniform PSBlock {\n");
|
|
|
|
WRITE(p, "\t%sfloat4 " I_COLORS"[4] %s;\n", WriteLocation(ApiType), WriteRegister(ApiType, "c", C_COLORS));
|
|
WRITE(p, "\t%sfloat4 " I_KCOLORS"[4] %s;\n", WriteLocation(ApiType), WriteRegister(ApiType, "c", C_KCOLORS));
|
|
WRITE(p, "\t%sfloat4 " I_ALPHA"[1] %s;\n", WriteLocation(ApiType), WriteRegister(ApiType, "c", C_ALPHA));
|
|
WRITE(p, "\t%sfloat4 " I_TEXDIMS"[8] %s;\n", WriteLocation(ApiType), WriteRegister(ApiType, "c", C_TEXDIMS));
|
|
WRITE(p, "\t%sfloat4 " I_ZBIAS"[2] %s;\n", WriteLocation(ApiType), WriteRegister(ApiType, "c", C_ZBIAS));
|
|
WRITE(p, "\t%sfloat4 " I_INDTEXSCALE"[2] %s;\n", WriteLocation(ApiType), WriteRegister(ApiType, "c", C_INDTEXSCALE));
|
|
WRITE(p, "\t%sfloat4 " I_INDTEXMTX"[6] %s;\n", WriteLocation(ApiType), WriteRegister(ApiType, "c", C_INDTEXMTX));
|
|
WRITE(p, "\t%sfloat4 " I_FOG"[3] %s;\n", WriteLocation(ApiType), WriteRegister(ApiType, "c", C_FOG));
|
|
|
|
// For pixel lighting
|
|
WRITE(p, "\t%sfloat4 " I_PLIGHTS"[40] %s;\n", WriteLocation(ApiType), WriteRegister(ApiType, "c", C_PLIGHTS));
|
|
WRITE(p, "\t%sfloat4 " I_PMATERIALS"[4] %s;\n", WriteLocation(ApiType), WriteRegister(ApiType, "c", C_PMATERIALS));
|
|
|
|
if (g_ActiveConfig.backend_info.bSupportsGLSLUBO)
|
|
WRITE(p, "};\n");
|
|
|
|
if (ApiType == API_OPENGL)
|
|
{
|
|
WRITE(p, "COLOROUT(ocol0)\n");
|
|
if (dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND)
|
|
WRITE(p, "COLOROUT(ocol1)\n");
|
|
|
|
if (per_pixel_depth)
|
|
WRITE(p, "#define depth gl_FragDepth\n");
|
|
WRITE(p, "float4 rawpos = gl_FragCoord;\n");
|
|
|
|
WRITE(p, "VARYIN float4 colors_02;\n");
|
|
WRITE(p, "VARYIN float4 colors_12;\n");
|
|
WRITE(p, "float4 colors_0 = colors_02;\n");
|
|
WRITE(p, "float4 colors_1 = colors_12;\n");
|
|
|
|
// compute window position if needed because binding semantic WPOS is not widely supported
|
|
// Let's set up attributes
|
|
if (xfregs.numTexGen.numTexGens < 7)
|
|
{
|
|
for (int i = 0; i < 8; ++i)
|
|
{
|
|
WRITE(p, "VARYIN float3 uv%d_2;\n", i);
|
|
WRITE(p, "float3 uv%d = uv%d_2;\n", i, i);
|
|
}
|
|
WRITE(p, "VARYIN float4 clipPos_2;\n");
|
|
WRITE(p, "float4 clipPos = clipPos_2;\n");
|
|
if (g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting)
|
|
{
|
|
WRITE(p, "VARYIN float4 Normal_2;\n");
|
|
WRITE(p, "float4 Normal = Normal_2;\n");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// wpos is in w of first 4 texcoords
|
|
if (g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting)
|
|
{
|
|
for (int i = 0; i < 8; ++i)
|
|
{
|
|
WRITE(p, "VARYIN float4 uv%d_2;\n", i);
|
|
WRITE(p, "float4 uv%d = uv%d_2;\n", i, i);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (unsigned int i = 0; i < xfregs.numTexGen.numTexGens; ++i)
|
|
{
|
|
WRITE(p, "VARYIN float%d uv%d_2;\n", i < 4 ? 4 : 3 , i);
|
|
WRITE(p, "float%d uv%d = uv%d_2;\n", i < 4 ? 4 : 3 , i, i);
|
|
}
|
|
}
|
|
WRITE(p, "float4 clipPos;\n");
|
|
}
|
|
WRITE(p, "void main()\n{\n");
|
|
}
|
|
else
|
|
{
|
|
WRITE(p, "void main(\n");
|
|
if (ApiType != API_D3D11)
|
|
{
|
|
WRITE(p, " out float4 ocol0 : COLOR0,%s%s\n in float4 rawpos : %s,\n",
|
|
dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND ? "\n out float4 ocol1 : COLOR1," : "",
|
|
per_pixel_depth ? "\n out float depth : DEPTH," : "",
|
|
ApiType & API_D3D9_SM20 ? "POSITION" : "VPOS");
|
|
}
|
|
else
|
|
{
|
|
WRITE(p, " out float4 ocol0 : SV_Target0,%s%s\n in float4 rawpos : SV_Position,\n",
|
|
dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND ? "\n out float4 ocol1 : SV_Target1," : "",
|
|
per_pixel_depth ? "\n out float depth : SV_Depth," : "");
|
|
}
|
|
|
|
// "centroid" attribute is only supported by D3D11
|
|
const char* optCentroid = (ApiType == API_D3D11 ? "centroid" : "");
|
|
|
|
WRITE(p, " in %s float4 colors_0 : COLOR0,\n", optCentroid);
|
|
WRITE(p, " in %s float4 colors_1 : COLOR1", optCentroid);
|
|
|
|
// compute window position if needed because binding semantic WPOS is not widely supported
|
|
if (numTexgen < 7)
|
|
{
|
|
for (int i = 0; i < numTexgen; ++i)
|
|
WRITE(p, ",\n in %s float3 uv%d : TEXCOORD%d", optCentroid, i, i);
|
|
WRITE(p, ",\n in %s float4 clipPos : TEXCOORD%d", optCentroid, numTexgen);
|
|
if(g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting)
|
|
WRITE(p, ",\n in %s float4 Normal : TEXCOORD%d", optCentroid, numTexgen + 1);
|
|
WRITE(p, " ) {\n");
|
|
}
|
|
else
|
|
{
|
|
// wpos is in w of first 4 texcoords
|
|
if(g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting)
|
|
{
|
|
for (int i = 0; i < 8; ++i)
|
|
WRITE(p, ",\n in float4 uv%d : TEXCOORD%d", i, i);
|
|
}
|
|
else
|
|
{
|
|
for (unsigned int i = 0; i < xfregs.numTexGen.numTexGens; ++i)
|
|
WRITE(p, ",\n in float%d uv%d : TEXCOORD%d", i < 4 ? 4 : 3 , i, i);
|
|
}
|
|
WRITE(p, " ) {\n");
|
|
WRITE(p, "\tfloat4 clipPos = float4(0.0f, 0.0f, 0.0f, 0.0f);");
|
|
}
|
|
}
|
|
|
|
WRITE(p, " float4 c0 = " I_COLORS"[1], c1 = " I_COLORS"[2], c2 = " I_COLORS"[3], prev = float4(0.0f, 0.0f, 0.0f, 0.0f), textemp = float4(0.0f, 0.0f, 0.0f, 0.0f), rastemp = float4(0.0f, 0.0f, 0.0f, 0.0f), konsttemp = float4(0.0f, 0.0f, 0.0f, 0.0f);\n"
|
|
" float3 comp16 = float3(1.0f, 255.0f, 0.0f), comp24 = float3(1.0f, 255.0f, 255.0f*255.0f);\n"
|
|
" float alphabump=0.0f;\n"
|
|
" float3 tevcoord=float3(0.0f, 0.0f, 0.0f);\n"
|
|
" float2 wrappedcoord=float2(0.0f,0.0f), tempcoord=float2(0.0f,0.0f);\n"
|
|
" float4 cc0=float4(0.0f,0.0f,0.0f,0.0f), cc1=float4(0.0f,0.0f,0.0f,0.0f);\n"
|
|
" float4 cc2=float4(0.0f,0.0f,0.0f,0.0f), cprev=float4(0.0f,0.0f,0.0f,0.0f);\n"
|
|
" float4 crastemp=float4(0.0f,0.0f,0.0f,0.0f),ckonsttemp=float4(0.0f,0.0f,0.0f,0.0f);\n\n");
|
|
|
|
if (g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting)
|
|
{
|
|
if (xfregs.numTexGen.numTexGens < 7)
|
|
{
|
|
WRITE(p,"\tfloat3 _norm0 = normalize(Normal.xyz);\n\n");
|
|
WRITE(p,"\tfloat3 pos = float3(clipPos.x,clipPos.y,Normal.w);\n");
|
|
}
|
|
else
|
|
{
|
|
WRITE(p,"\tfloat3 _norm0 = normalize(float3(uv4.w,uv5.w,uv6.w));\n\n");
|
|
WRITE(p,"\tfloat3 pos = float3(uv0.w,uv1.w,uv7.w);\n");
|
|
}
|
|
|
|
|
|
WRITE(p, "\tfloat4 mat, lacc;\n"
|
|
"\tfloat3 ldir, h;\n"
|
|
"\tfloat dist, dist2, attn;\n");
|
|
|
|
p = GenerateLightingShader(p, components, I_PMATERIALS, I_PLIGHTS, "colors_", "colors_");
|
|
}
|
|
|
|
if (numTexgen < 7)
|
|
WRITE(p, "\tclipPos = float4(rawpos.x, rawpos.y, clipPos.z, clipPos.w);\n");
|
|
else
|
|
WRITE(p, "\tclipPos = float4(rawpos.x, rawpos.y, uv2.w, uv3.w);\n");
|
|
|
|
// HACK to handle cases where the tex gen is not enabled
|
|
if (numTexgen == 0)
|
|
{
|
|
WRITE(p, "\tfloat3 uv0 = float3(0.0f, 0.0f, 0.0f);\n");
|
|
}
|
|
else
|
|
{
|
|
for (int i = 0; i < numTexgen; ++i)
|
|
{
|
|
// optional perspective divides
|
|
if (xfregs.texMtxInfo[i].projection == XF_TEXPROJ_STQ)
|
|
{
|
|
WRITE(p, "\tif (uv%d.z != 0.0f)", i);
|
|
WRITE(p, "\t\tuv%d.xy = uv%d.xy / uv%d.z;\n", i, i, i);
|
|
}
|
|
|
|
WRITE(p, "uv%d.xy = uv%d.xy * " I_TEXDIMS"[%d].zw;\n", i, i, i);
|
|
}
|
|
}
|
|
|
|
// indirect texture map lookup
|
|
for (u32 i = 0; i < bpmem.genMode.numindstages; ++i)
|
|
{
|
|
if (nIndirectStagesUsed & (1<<i))
|
|
{
|
|
int texcoord = bpmem.tevindref.getTexCoord(i);
|
|
|
|
if (texcoord < numTexgen)
|
|
WRITE(p, "\ttempcoord = uv%d.xy * " I_INDTEXSCALE"[%d].%s;\n", texcoord, i/2, (i&1)?"zw":"xy");
|
|
else
|
|
WRITE(p, "\ttempcoord = float2(0.0f, 0.0f);\n");
|
|
|
|
char buffer[32];
|
|
sprintf(buffer, "float3 indtex%d", i);
|
|
SampleTexture(p, buffer, "tempcoord", "abg", bpmem.tevindref.getTexMap(i), ApiType);
|
|
}
|
|
}
|
|
|
|
RegisterStates[0].AlphaNeedOverflowControl = false;
|
|
RegisterStates[0].ColorNeedOverflowControl = false;
|
|
RegisterStates[0].AuxStored = false;
|
|
for(int i = 1; i < 4; i++)
|
|
{
|
|
RegisterStates[i].AlphaNeedOverflowControl = true;
|
|
RegisterStates[i].ColorNeedOverflowControl = true;
|
|
RegisterStates[i].AuxStored = false;
|
|
}
|
|
|
|
for (int i = 0; i < numStages; i++)
|
|
WriteStage(p, i, ApiType); //build the equation for this stage
|
|
|
|
if (numStages)
|
|
{
|
|
// The results of the last texenv stage are put onto the screen,
|
|
// regardless of the used destination register
|
|
if(bpmem.combiners[numStages - 1].colorC.dest != 0)
|
|
{
|
|
bool retrieveFromAuxRegister = !RegisterStates[bpmem.combiners[numStages - 1].colorC.dest].ColorNeedOverflowControl && RegisterStates[bpmem.combiners[numStages - 1].colorC.dest].AuxStored;
|
|
WRITE(p, "\tprev.rgb = %s%s;\n", retrieveFromAuxRegister ? "c" : "" , tevCOutputTable[bpmem.combiners[numStages - 1].colorC.dest]);
|
|
RegisterStates[0].ColorNeedOverflowControl = RegisterStates[bpmem.combiners[numStages - 1].colorC.dest].ColorNeedOverflowControl;
|
|
}
|
|
if(bpmem.combiners[numStages - 1].alphaC.dest != 0)
|
|
{
|
|
bool retrieveFromAuxRegister = !RegisterStates[bpmem.combiners[numStages - 1].alphaC.dest].AlphaNeedOverflowControl && RegisterStates[bpmem.combiners[numStages - 1].alphaC.dest].AuxStored;
|
|
WRITE(p, "\tprev.a = %s%s;\n", retrieveFromAuxRegister ? "c" : "" , tevAOutputTable[bpmem.combiners[numStages - 1].alphaC.dest]);
|
|
RegisterStates[0].AlphaNeedOverflowControl = RegisterStates[bpmem.combiners[numStages - 1].alphaC.dest].AlphaNeedOverflowControl;
|
|
}
|
|
}
|
|
// emulation of unsigned 8 overflow when casting if needed
|
|
if(RegisterStates[0].AlphaNeedOverflowControl || RegisterStates[0].ColorNeedOverflowControl)
|
|
WRITE(p, "\tprev = frac(prev * (255.0f/256.0f)) * (256.0f/255.0f);\n");
|
|
|
|
AlphaTest::TEST_RESULT Pretest = bpmem.alpha_test.TestResult();
|
|
if (Pretest == AlphaTest::UNDETERMINED)
|
|
WriteAlphaTest(p, ApiType, dstAlphaMode, per_pixel_depth);
|
|
|
|
|
|
// the screen space depth value = far z + (clip z / clip w) * z range
|
|
if(ApiType == API_OPENGL || ApiType == API_D3D11)
|
|
WRITE(p, "float zCoord = rawpos.z;\n");
|
|
else
|
|
// dx9 doesn't support 4 component position, so we have to calculate it again
|
|
WRITE(p, "float zCoord = " I_ZBIAS"[1].x + (clipPos.z / clipPos.w) * " I_ZBIAS"[1].y;\n");
|
|
|
|
// depth texture can safely be ignored if the result won't be written to the depth buffer (early_ztest) and isn't used for fog either
|
|
bool skip_ztexture = !per_pixel_depth && !bpmem.fog.c_proj_fsel.fsel;
|
|
if (bpmem.ztex2.op != ZTEXTURE_DISABLE && !skip_ztexture)
|
|
{
|
|
// use the texture input of the last texture stage (textemp), hopefully this has been read and is in correct format...
|
|
WRITE(p, "zCoord = dot(" I_ZBIAS"[0].xyzw, textemp.xyzw) + " I_ZBIAS"[1].w %s;\n",
|
|
(bpmem.ztex2.op == ZTEXTURE_ADD) ? "+ zCoord" : "");
|
|
|
|
// scale to make result from frac correct
|
|
WRITE(p, "zCoord = zCoord * (16777215.0f/16777216.0f);\n");
|
|
WRITE(p, "zCoord = frac(zCoord);\n");
|
|
WRITE(p, "zCoord = zCoord * (16777216.0f/16777215.0f);\n");
|
|
|
|
// Note: depth texture out put is only written to depth buffer if late depth test is used
|
|
if (per_pixel_depth)
|
|
WRITE(p, "depth = zCoord;\n");
|
|
}
|
|
|
|
if (dstAlphaMode == DSTALPHA_ALPHA_PASS)
|
|
{
|
|
WRITE(p, "\tocol0 = float4(prev.rgb, " I_ALPHA"[0].a);\n");
|
|
}
|
|
else
|
|
{
|
|
WriteFog(p);
|
|
WRITE(p, "\tocol0 = prev;\n");
|
|
}
|
|
|
|
// Use dual-source color blending to perform dst alpha in a
|
|
// single pass
|
|
if (dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND)
|
|
{
|
|
if(ApiType & API_D3D9)
|
|
{
|
|
// alpha component must be 0 or the shader will not compile (Direct3D 9Ex restriction)
|
|
// Colors will be blended against the color from ocol1 in D3D 9...
|
|
WRITE(p, "\tocol1 = float4(prev.a, prev.a, prev.a, 0.0f);\n");
|
|
}
|
|
else
|
|
{
|
|
// Colors will be blended against the alpha from ocol1...
|
|
WRITE(p, "\tocol1 = prev;\n");
|
|
}
|
|
// ...and the alpha from ocol0 will be written to the framebuffer.
|
|
WRITE(p, "\tocol0.a = " I_ALPHA"[0].a;\n");
|
|
}
|
|
|
|
WRITE(p, "}\n");
|
|
if (text[sizeof(text) - 1] != 0x7C)
|
|
PanicAlert("PixelShader generator - buffer too small, canary has been eaten!");
|
|
|
|
setlocale(LC_NUMERIC, ""); // restore locale
|
|
return text;
|
|
}
|
|
|
|
|
|
|
|
//table with the color compare operations
|
|
static const char *TEVCMPColorOPTable[16] =
|
|
{
|
|
"float3(0.0f, 0.0f, 0.0f)",//0
|
|
"float3(0.0f, 0.0f, 0.0f)",//1
|
|
"float3(0.0f, 0.0f, 0.0f)",//2
|
|
"float3(0.0f, 0.0f, 0.0f)",//3
|
|
"float3(0.0f, 0.0f, 0.0f)",//4
|
|
"float3(0.0f, 0.0f, 0.0f)",//5
|
|
"float3(0.0f, 0.0f, 0.0f)",//6
|
|
"float3(0.0f, 0.0f, 0.0f)",//7
|
|
" %s + ((%s.r >= %s.r + (0.25f/255.0f)) ? %s : float3(0.0f, 0.0f, 0.0f))",//#define TEVCMP_R8_GT 8
|
|
" %s + ((abs(%s.r - %s.r) < (0.5f/255.0f)) ? %s : float3(0.0f, 0.0f, 0.0f))",//#define TEVCMP_R8_EQ 9
|
|
" %s + (( dot(%s.rgb, comp16) >= (dot(%s.rgb, comp16) + (0.25f/255.0f))) ? %s : float3(0.0f, 0.0f, 0.0f))",//#define TEVCMP_GR16_GT 10
|
|
" %s + (abs(dot(%s.rgb, comp16) - dot(%s.rgb, comp16)) < (0.5f/255.0f) ? %s : float3(0.0f, 0.0f, 0.0f))",//#define TEVCMP_GR16_EQ 11
|
|
" %s + (( dot(%s.rgb, comp24) >= (dot(%s.rgb, comp24) + (0.25f/255.0f))) ? %s : float3(0.0f, 0.0f, 0.0f))",//#define TEVCMP_BGR24_GT 12
|
|
" %s + (abs(dot(%s.rgb, comp24) - dot(%s.rgb, comp24)) < (0.5f/255.0f) ? %s : float3(0.0f, 0.0f, 0.0f))",//#define TEVCMP_BGR24_EQ 13
|
|
" %s + (max(sign(%s.rgb - %s.rgb - (0.25f/255.0f)), float3(0.0f, 0.0f, 0.0f)) * %s)",//#define TEVCMP_RGB8_GT 14
|
|
" %s + ((float3(1.0f, 1.0f, 1.0f) - max(sign(abs(%s.rgb - %s.rgb) - (0.5f/255.0f)), float3(0.0f, 0.0f, 0.0f))) * %s)"//#define TEVCMP_RGB8_EQ 15
|
|
};
|
|
|
|
//table with the alpha compare operations
|
|
static const char *TEVCMPAlphaOPTable[16] =
|
|
{
|
|
"0.0f",//0
|
|
"0.0f",//1
|
|
"0.0f",//2
|
|
"0.0f",//3
|
|
"0.0f",//4
|
|
"0.0f",//5
|
|
"0.0f",//6
|
|
"0.0f",//7
|
|
" %s.a + ((%s.r >= (%s.r + (0.25f/255.0f))) ? %s.a : 0.0f)",//#define TEVCMP_R8_GT 8
|
|
" %s.a + (abs(%s.r - %s.r) < (0.5f/255.0f) ? %s.a : 0.0f)",//#define TEVCMP_R8_EQ 9
|
|
" %s.a + ((dot(%s.rgb, comp16) >= (dot(%s.rgb, comp16) + (0.25f/255.0f))) ? %s.a : 0.0f)",//#define TEVCMP_GR16_GT 10
|
|
" %s.a + (abs(dot(%s.rgb, comp16) - dot(%s.rgb, comp16)) < (0.5f/255.0f) ? %s.a : 0.0f)",//#define TEVCMP_GR16_EQ 11
|
|
" %s.a + ((dot(%s.rgb, comp24) >= (dot(%s.rgb, comp24) + (0.25f/255.0f))) ? %s.a : 0.0f)",//#define TEVCMP_BGR24_GT 12
|
|
" %s.a + (abs(dot(%s.rgb, comp24) - dot(%s.rgb, comp24)) < (0.5f/255.0f) ? %s.a : 0.0f)",//#define TEVCMP_BGR24_EQ 13
|
|
" %s.a + ((%s.a >= (%s.a + (0.25f/255.0f))) ? %s.a : 0.0f)",//#define TEVCMP_A8_GT 14
|
|
" %s.a + (abs(%s.a - %s.a) < (0.5f/255.0f) ? %s.a : 0.0f)"//#define TEVCMP_A8_EQ 15
|
|
|
|
};
|
|
|
|
|
|
static void WriteStage(char *&p, int n, API_TYPE ApiType)
|
|
{
|
|
int texcoord = bpmem.tevorders[n/2].getTexCoord(n&1);
|
|
bool bHasTexCoord = (u32)texcoord < bpmem.genMode.numtexgens;
|
|
bool bHasIndStage = bpmem.tevind[n].IsActive() && bpmem.tevind[n].bt < bpmem.genMode.numindstages;
|
|
|
|
// HACK to handle cases where the tex gen is not enabled
|
|
if (!bHasTexCoord)
|
|
texcoord = 0;
|
|
|
|
WRITE(p, "// TEV stage %d\n", n);
|
|
|
|
if (bHasIndStage)
|
|
{
|
|
WRITE(p, "// indirect op\n");
|
|
// perform the indirect op on the incoming regular coordinates using indtex%d as the offset coords
|
|
if (bpmem.tevind[n].bs != ITBA_OFF)
|
|
{
|
|
WRITE(p, "alphabump = indtex%d.%s %s;\n",
|
|
bpmem.tevind[n].bt,
|
|
tevIndAlphaSel[bpmem.tevind[n].bs],
|
|
tevIndAlphaScale[bpmem.tevind[n].fmt]);
|
|
}
|
|
// format
|
|
WRITE(p, "float3 indtevcrd%d = indtex%d * %s;\n", n, bpmem.tevind[n].bt, tevIndFmtScale[bpmem.tevind[n].fmt]);
|
|
|
|
// bias
|
|
if (bpmem.tevind[n].bias != ITB_NONE )
|
|
WRITE(p, "indtevcrd%d.%s += %s;\n", n, tevIndBiasField[bpmem.tevind[n].bias], tevIndBiasAdd[bpmem.tevind[n].fmt]);
|
|
|
|
// multiply by offset matrix and scale
|
|
if (bpmem.tevind[n].mid != 0)
|
|
{
|
|
if (bpmem.tevind[n].mid <= 3)
|
|
{
|
|
int mtxidx = 2*(bpmem.tevind[n].mid-1);
|
|
WRITE(p, "float2 indtevtrans%d = float2(dot(" I_INDTEXMTX"[%d].xyz, indtevcrd%d), dot(" I_INDTEXMTX"[%d].xyz, indtevcrd%d));\n",
|
|
n, mtxidx, n, mtxidx+1, n);
|
|
}
|
|
else if (bpmem.tevind[n].mid <= 7 && bHasTexCoord)
|
|
{ // s matrix
|
|
_assert_(bpmem.tevind[n].mid >= 5);
|
|
int mtxidx = 2*(bpmem.tevind[n].mid-5);
|
|
WRITE(p, "float2 indtevtrans%d = " I_INDTEXMTX"[%d].ww * uv%d.xy * indtevcrd%d.xx;\n", n, mtxidx, texcoord, n);
|
|
}
|
|
else if (bpmem.tevind[n].mid <= 11 && bHasTexCoord)
|
|
{ // t matrix
|
|
_assert_(bpmem.tevind[n].mid >= 9);
|
|
int mtxidx = 2*(bpmem.tevind[n].mid-9);
|
|
WRITE(p, "float2 indtevtrans%d = " I_INDTEXMTX"[%d].ww * uv%d.xy * indtevcrd%d.yy;\n", n, mtxidx, texcoord, n);
|
|
}
|
|
else
|
|
{
|
|
WRITE(p, "float2 indtevtrans%d = float2(0.0f, 0.0f);\n", n);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
WRITE(p, "float2 indtevtrans%d = float2(0.0f, 0.0f);\n", n);
|
|
}
|
|
|
|
// ---------
|
|
// Wrapping
|
|
// ---------
|
|
|
|
// wrap S
|
|
if (bpmem.tevind[n].sw == ITW_OFF)
|
|
WRITE(p, "wrappedcoord.x = uv%d.x;\n", texcoord);
|
|
else if (bpmem.tevind[n].sw == ITW_0)
|
|
WRITE(p, "wrappedcoord.x = 0.0f;\n");
|
|
else
|
|
WRITE(p, "wrappedcoord.x = fmod( uv%d.x, %s );\n", texcoord, tevIndWrapStart[bpmem.tevind[n].sw]);
|
|
|
|
// wrap T
|
|
if (bpmem.tevind[n].tw == ITW_OFF)
|
|
WRITE(p, "wrappedcoord.y = uv%d.y;\n", texcoord);
|
|
else if (bpmem.tevind[n].tw == ITW_0)
|
|
WRITE(p, "wrappedcoord.y = 0.0f;\n");
|
|
else
|
|
WRITE(p, "wrappedcoord.y = fmod( uv%d.y, %s );\n", texcoord, tevIndWrapStart[bpmem.tevind[n].tw]);
|
|
|
|
if (bpmem.tevind[n].fb_addprev) // add previous tevcoord
|
|
WRITE(p, "tevcoord.xy += wrappedcoord + indtevtrans%d;\n", n);
|
|
else
|
|
WRITE(p, "tevcoord.xy = wrappedcoord + indtevtrans%d;\n", n);
|
|
}
|
|
|
|
TevStageCombiner::ColorCombiner &cc = bpmem.combiners[n].colorC;
|
|
TevStageCombiner::AlphaCombiner &ac = bpmem.combiners[n].alphaC;
|
|
|
|
if(cc.a == TEVCOLORARG_RASA || cc.a == TEVCOLORARG_RASC
|
|
|| cc.b == TEVCOLORARG_RASA || cc.b == TEVCOLORARG_RASC
|
|
|| cc.c == TEVCOLORARG_RASA || cc.c == TEVCOLORARG_RASC
|
|
|| cc.d == TEVCOLORARG_RASA || cc.d == TEVCOLORARG_RASC
|
|
|| ac.a == TEVALPHAARG_RASA || ac.b == TEVALPHAARG_RASA
|
|
|| ac.c == TEVALPHAARG_RASA || ac.d == TEVALPHAARG_RASA)
|
|
{
|
|
char *rasswap = swapModeTable[bpmem.combiners[n].alphaC.rswap];
|
|
WRITE(p, "rastemp = %s.%s;\n", tevRasTable[bpmem.tevorders[n / 2].getColorChan(n & 1)], rasswap);
|
|
WRITE(p, "crastemp = frac(rastemp * (255.0f/256.0f)) * (256.0f/255.0f);\n");
|
|
}
|
|
|
|
|
|
if (bpmem.tevorders[n/2].getEnable(n&1))
|
|
{
|
|
if (!bHasIndStage)
|
|
{
|
|
// calc tevcord
|
|
if (bHasTexCoord)
|
|
WRITE(p, "tevcoord.xy = uv%d.xy;\n", texcoord);
|
|
else
|
|
WRITE(p, "tevcoord.xy = float2(0.0f, 0.0f);\n");
|
|
}
|
|
|
|
char *texswap = swapModeTable[bpmem.combiners[n].alphaC.tswap];
|
|
int texmap = bpmem.tevorders[n/2].getTexMap(n&1);
|
|
SampleTexture(p, "textemp", "tevcoord", texswap, texmap, ApiType);
|
|
}
|
|
else
|
|
{
|
|
WRITE(p, "textemp = float4(1.0f, 1.0f, 1.0f, 1.0f);\n");
|
|
}
|
|
|
|
|
|
if (cc.a == TEVCOLORARG_KONST || cc.b == TEVCOLORARG_KONST || cc.c == TEVCOLORARG_KONST || cc.d == TEVCOLORARG_KONST
|
|
|| ac.a == TEVALPHAARG_KONST || ac.b == TEVALPHAARG_KONST || ac.c == TEVALPHAARG_KONST || ac.d == TEVALPHAARG_KONST)
|
|
{
|
|
int kc = bpmem.tevksel[n / 2].getKC(n & 1);
|
|
int ka = bpmem.tevksel[n / 2].getKA(n & 1);
|
|
WRITE(p, "konsttemp = float4(%s, %s);\n", tevKSelTableC[kc], tevKSelTableA[ka]);
|
|
if (kc > 7 || ka > 7)
|
|
{
|
|
WRITE(p, "ckonsttemp = frac(konsttemp * (255.0f/256.0f)) * (256.0f/255.0f);\n");
|
|
}
|
|
else
|
|
{
|
|
WRITE(p, "ckonsttemp = konsttemp;\n");
|
|
}
|
|
}
|
|
|
|
if(cc.a == TEVCOLORARG_CPREV || cc.a == TEVCOLORARG_APREV
|
|
|| cc.b == TEVCOLORARG_CPREV || cc.b == TEVCOLORARG_APREV
|
|
|| cc.c == TEVCOLORARG_CPREV || cc.c == TEVCOLORARG_APREV
|
|
|| ac.a == TEVALPHAARG_APREV || ac.b == TEVALPHAARG_APREV || ac.c == TEVALPHAARG_APREV)
|
|
{
|
|
if(RegisterStates[0].AlphaNeedOverflowControl || RegisterStates[0].ColorNeedOverflowControl)
|
|
{
|
|
WRITE(p, "cprev = frac(prev * (255.0f/256.0f)) * (256.0f/255.0f);\n");
|
|
RegisterStates[0].AlphaNeedOverflowControl = false;
|
|
RegisterStates[0].ColorNeedOverflowControl = false;
|
|
}
|
|
else
|
|
{
|
|
WRITE(p, "cprev = prev;\n");
|
|
}
|
|
RegisterStates[0].AuxStored = true;
|
|
}
|
|
|
|
if(cc.a == TEVCOLORARG_C0 || cc.a == TEVCOLORARG_A0
|
|
|| cc.b == TEVCOLORARG_C0 || cc.b == TEVCOLORARG_A0
|
|
|| cc.c == TEVCOLORARG_C0 || cc.c == TEVCOLORARG_A0
|
|
|| ac.a == TEVALPHAARG_A0 || ac.b == TEVALPHAARG_A0 || ac.c == TEVALPHAARG_A0)
|
|
{
|
|
if(RegisterStates[1].AlphaNeedOverflowControl || RegisterStates[1].ColorNeedOverflowControl)
|
|
{
|
|
WRITE(p, "cc0 = frac(c0 * (255.0f/256.0f)) * (256.0f/255.0f);\n");
|
|
RegisterStates[1].AlphaNeedOverflowControl = false;
|
|
RegisterStates[1].ColorNeedOverflowControl = false;
|
|
}
|
|
else
|
|
{
|
|
WRITE(p, "cc0 = c0;\n");
|
|
}
|
|
RegisterStates[1].AuxStored = true;
|
|
}
|
|
|
|
if(cc.a == TEVCOLORARG_C1 || cc.a == TEVCOLORARG_A1
|
|
|| cc.b == TEVCOLORARG_C1 || cc.b == TEVCOLORARG_A1
|
|
|| cc.c == TEVCOLORARG_C1 || cc.c == TEVCOLORARG_A1
|
|
|| ac.a == TEVALPHAARG_A1 || ac.b == TEVALPHAARG_A1 || ac.c == TEVALPHAARG_A1)
|
|
{
|
|
if(RegisterStates[2].AlphaNeedOverflowControl || RegisterStates[2].ColorNeedOverflowControl)
|
|
{
|
|
WRITE(p, "cc1 = frac(c1 * (255.0f/256.0f)) * (256.0f/255.0f);\n");
|
|
RegisterStates[2].AlphaNeedOverflowControl = false;
|
|
RegisterStates[2].ColorNeedOverflowControl = false;
|
|
}
|
|
else
|
|
{
|
|
WRITE(p, "cc1 = c1;\n");
|
|
}
|
|
RegisterStates[2].AuxStored = true;
|
|
}
|
|
|
|
if(cc.a == TEVCOLORARG_C2 || cc.a == TEVCOLORARG_A2
|
|
|| cc.b == TEVCOLORARG_C2 || cc.b == TEVCOLORARG_A2
|
|
|| cc.c == TEVCOLORARG_C2 || cc.c == TEVCOLORARG_A2
|
|
|| ac.a == TEVALPHAARG_A2 || ac.b == TEVALPHAARG_A2 || ac.c == TEVALPHAARG_A2)
|
|
{
|
|
if(RegisterStates[3].AlphaNeedOverflowControl || RegisterStates[3].ColorNeedOverflowControl)
|
|
{
|
|
WRITE(p, "cc2 = frac(c2 * (255.0f/256.0f)) * (256.0f/255.0f);\n");
|
|
RegisterStates[3].AlphaNeedOverflowControl = false;
|
|
RegisterStates[3].ColorNeedOverflowControl = false;
|
|
}
|
|
else
|
|
{
|
|
WRITE(p, "cc2 = c2;\n");
|
|
}
|
|
RegisterStates[3].AuxStored = true;
|
|
}
|
|
|
|
RegisterStates[cc.dest].ColorNeedOverflowControl = (cc.clamp == 0);
|
|
RegisterStates[cc.dest].AuxStored = false;
|
|
|
|
// combine the color channel
|
|
WRITE(p, "// color combine\n");
|
|
if (cc.clamp)
|
|
WRITE(p, "%s = saturate(", tevCOutputTable[cc.dest]);
|
|
else
|
|
WRITE(p, "%s = ", tevCOutputTable[cc.dest]);
|
|
|
|
// combine the color channel
|
|
if (cc.bias != TevBias_COMPARE) // if not compare
|
|
{
|
|
//normal color combiner goes here
|
|
if (cc.shift > TEVSCALE_1)
|
|
WRITE(p, "%s*(", tevScaleTable[cc.shift]);
|
|
|
|
if (!(cc.d == TEVCOLORARG_ZERO && cc.op == TEVOP_ADD))
|
|
WRITE(p, "%s%s", tevCInputTable[cc.d], tevOpTable[cc.op]);
|
|
|
|
if (cc.a == cc.b)
|
|
WRITE(p, "%s", tevCInputTable[cc.a + 16]);
|
|
else if (cc.c == TEVCOLORARG_ZERO)
|
|
WRITE(p, "%s", tevCInputTable[cc.a + 16]);
|
|
else if (cc.c == TEVCOLORARG_ONE)
|
|
WRITE(p, "%s", tevCInputTable[cc.b + 16]);
|
|
else if (cc.a == TEVCOLORARG_ZERO)
|
|
WRITE(p, "%s*%s", tevCInputTable[cc.b + 16], tevCInputTable[cc.c + 16]);
|
|
else if (cc.b == TEVCOLORARG_ZERO)
|
|
WRITE(p, "%s*(float3(1.0f, 1.0f, 1.0f)-%s)", tevCInputTable[cc.a + 16], tevCInputTable[cc.c + 16]);
|
|
else
|
|
WRITE(p, "lerp(%s, %s, %s)", tevCInputTable[cc.a + 16], tevCInputTable[cc.b + 16], tevCInputTable[cc.c + 16]);
|
|
|
|
WRITE(p, "%s", tevBiasTable[cc.bias]);
|
|
|
|
if (cc.shift > TEVSCALE_1)
|
|
WRITE(p, ")");
|
|
}
|
|
else
|
|
{
|
|
int cmp = (cc.shift<<1)|cc.op|8; // comparemode stored here
|
|
WRITE(p, TEVCMPColorOPTable[cmp],//lookup the function from the op table
|
|
tevCInputTable[cc.d],
|
|
tevCInputTable[cc.a + 16],
|
|
tevCInputTable[cc.b + 16],
|
|
tevCInputTable[cc.c + 16]);
|
|
}
|
|
if (cc.clamp)
|
|
WRITE(p, ")");
|
|
WRITE(p,";\n");
|
|
|
|
RegisterStates[ac.dest].AlphaNeedOverflowControl = (ac.clamp == 0);
|
|
RegisterStates[ac.dest].AuxStored = false;
|
|
|
|
// combine the alpha channel
|
|
WRITE(p, "// alpha combine\n");
|
|
if (ac.clamp)
|
|
WRITE(p, "%s = saturate(", tevAOutputTable[ac.dest]);
|
|
else
|
|
WRITE(p, "%s = ", tevAOutputTable[ac.dest]);
|
|
|
|
if (ac.bias != TevBias_COMPARE) // if not compare
|
|
{
|
|
//normal alpha combiner goes here
|
|
if (ac.shift > TEVSCALE_1)
|
|
WRITE(p, "%s*(", tevScaleTable[ac.shift]);
|
|
|
|
if (!(ac.d == TEVALPHAARG_ZERO && ac.op == TEVOP_ADD))
|
|
WRITE(p, "%s.a%s", tevAInputTable[ac.d], tevOpTable[ac.op]);
|
|
|
|
if (ac.a == ac.b)
|
|
WRITE(p, "%s.a", tevAInputTable[ac.a + 8]);
|
|
else if (ac.c == TEVALPHAARG_ZERO)
|
|
WRITE(p, "%s.a", tevAInputTable[ac.a + 8]);
|
|
else if (ac.a == TEVALPHAARG_ZERO)
|
|
WRITE(p, "%s.a*%s.a", tevAInputTable[ac.b + 8], tevAInputTable[ac.c + 8]);
|
|
else if (ac.b == TEVALPHAARG_ZERO)
|
|
WRITE(p, "%s.a*(1.0f-%s.a)", tevAInputTable[ac.a + 8], tevAInputTable[ac.c + 8]);
|
|
else
|
|
WRITE(p, "lerp(%s.a, %s.a, %s.a)", tevAInputTable[ac.a + 8], tevAInputTable[ac.b + 8], tevAInputTable[ac.c + 8]);
|
|
|
|
WRITE(p, "%s",tevBiasTable[ac.bias]);
|
|
|
|
if (ac.shift > 0)
|
|
WRITE(p, ")");
|
|
|
|
}
|
|
else
|
|
{
|
|
//compare alpha combiner goes here
|
|
int cmp = (ac.shift<<1)|ac.op|8; // comparemode stored here
|
|
WRITE(p, TEVCMPAlphaOPTable[cmp],
|
|
tevAInputTable[ac.d],
|
|
tevAInputTable[ac.a + 8],
|
|
tevAInputTable[ac.b + 8],
|
|
tevAInputTable[ac.c + 8]);
|
|
}
|
|
if (ac.clamp)
|
|
WRITE(p, ")");
|
|
WRITE(p, ";\n\n");
|
|
WRITE(p, "// TEV done\n");
|
|
}
|
|
|
|
void SampleTexture(char *&p, const char *destination, const char *texcoords, const char *texswap, int texmap, API_TYPE ApiType)
|
|
{
|
|
if (ApiType == API_D3D11)
|
|
WRITE(p, "%s=Tex%d.Sample(samp%d,%s.xy * " I_TEXDIMS"[%d].xy).%s;\n", destination, texmap,texmap, texcoords, texmap, texswap);
|
|
else
|
|
WRITE(p, "%s=%s(samp%d,%s.xy * " I_TEXDIMS"[%d].xy).%s;\n", destination, ApiType == API_OPENGL ? "texture" : "tex2D", texmap, texcoords, texmap, texswap);
|
|
}
|
|
|
|
static const char *tevAlphaFuncsTable[] =
|
|
{
|
|
"(false)", //ALPHACMP_NEVER 0
|
|
"(prev.a <= %s - (0.25f/255.0f))", //ALPHACMP_LESS 1
|
|
"(abs( prev.a - %s ) < (0.5f/255.0f))", //ALPHACMP_EQUAL 2
|
|
"(prev.a < %s + (0.25f/255.0f))", //ALPHACMP_LEQUAL 3
|
|
"(prev.a >= %s + (0.25f/255.0f))", //ALPHACMP_GREATER 4
|
|
"(abs( prev.a - %s ) >= (0.5f/255.0f))", //ALPHACMP_NEQUAL 5
|
|
"(prev.a > %s - (0.25f/255.0f))", //ALPHACMP_GEQUAL 6
|
|
"(true)" //ALPHACMP_ALWAYS 7
|
|
};
|
|
|
|
static const char *tevAlphaFunclogicTable[] =
|
|
{
|
|
" && ", // and
|
|
" || ", // or
|
|
" != ", // xor
|
|
" == " // xnor
|
|
};
|
|
|
|
static void WriteAlphaTest(char *&p, API_TYPE ApiType,DSTALPHA_MODE dstAlphaMode, bool per_pixel_depth)
|
|
{
|
|
static const char *alphaRef[2] =
|
|
{
|
|
I_ALPHA"[0].r",
|
|
I_ALPHA"[0].g"
|
|
};
|
|
|
|
|
|
// using discard then return works the same in cg and dx9 but not in dx11
|
|
WRITE(p, "\tif(!( ");
|
|
|
|
int compindex = bpmem.alpha_test.comp0;
|
|
WRITE(p, tevAlphaFuncsTable[compindex],alphaRef[0]);//lookup the first component from the alpha function table
|
|
|
|
WRITE(p, "%s", tevAlphaFunclogicTable[bpmem.alpha_test.logic]);//lookup the logic op
|
|
|
|
compindex = bpmem.alpha_test.comp1;
|
|
WRITE(p, tevAlphaFuncsTable[compindex],alphaRef[1]);//lookup the second component from the alpha function table
|
|
WRITE(p, ")) {\n");
|
|
|
|
WRITE(p, "\t\tocol0 = float4(0.0f, 0.0f, 0.0f, 0.0f);\n");
|
|
if (dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND)
|
|
WRITE(p, "\t\tocol1 = float4(0.0f, 0.0f, 0.0f, 0.0f);\n");
|
|
if(per_pixel_depth)
|
|
WRITE(p, "depth = 1.f;\n");
|
|
|
|
// HAXX: zcomploc (aka early_ztest) is a way to control whether depth test is done before
|
|
// or after texturing and alpha test. PC GPUs have no way to support this
|
|
// feature properly as of 2012: depth buffer and depth test are not
|
|
// programmable and the depth test is always done after texturing.
|
|
// Most importantly, PC GPUs do not allow writing to the z-buffer without
|
|
// writing a color value (unless color writing is disabled altogether).
|
|
// We implement "depth test before texturing" by discarding the fragment
|
|
// when the alpha test fail. This is not a correct implementation because
|
|
// even if the depth test fails the fragment could be alpha blended, but
|
|
// we don't have a choice.
|
|
if (!(bpmem.zcontrol.early_ztest && bpmem.zmode.updateenable))
|
|
{
|
|
WRITE(p, "\t\tdiscard;\n");
|
|
if (ApiType != API_D3D11)
|
|
WRITE(p, "\t\treturn;\n");
|
|
}
|
|
|
|
WRITE(p, "}\n");
|
|
}
|
|
|
|
static const char *tevFogFuncsTable[] =
|
|
{
|
|
"", // No Fog
|
|
"", // ?
|
|
"", // Linear
|
|
"", // ?
|
|
"\tfog = 1.0f - pow(2.0f, -8.0f * fog);\n", // exp
|
|
"\tfog = 1.0f - pow(2.0f, -8.0f * fog * fog);\n", // exp2
|
|
"\tfog = pow(2.0f, -8.0f * (1.0f - fog));\n", // backward exp
|
|
"\tfog = 1.0f - fog;\n fog = pow(2.0f, -8.0f * fog * fog);\n" // backward exp2
|
|
};
|
|
|
|
static void WriteFog(char *&p)
|
|
{
|
|
if (bpmem.fog.c_proj_fsel.fsel == 0)
|
|
return; // no Fog
|
|
|
|
if (bpmem.fog.c_proj_fsel.proj == 0)
|
|
{
|
|
// perspective
|
|
// ze = A/(B - (Zs >> B_SHF)
|
|
WRITE (p, "\tfloat ze = " I_FOG"[1].x / (" I_FOG"[1].y - (zCoord / " I_FOG"[1].w));\n");
|
|
}
|
|
else
|
|
{
|
|
// orthographic
|
|
// ze = a*Zs (here, no B_SHF)
|
|
WRITE (p, "\tfloat ze = " I_FOG"[1].x * zCoord;\n");
|
|
}
|
|
|
|
// x_adjust = sqrt((x-center)^2 + k^2)/k
|
|
// ze *= x_adjust
|
|
//this is completely theoretical as the real hardware seems to use a table instead of calculating the values.
|
|
if (bpmem.fogRange.Base.Enabled)
|
|
{
|
|
WRITE (p, "\tfloat x_adjust = (2.0f * (clipPos.x / " I_FOG"[2].y)) - 1.0f - " I_FOG"[2].x;\n");
|
|
WRITE (p, "\tx_adjust = sqrt(x_adjust * x_adjust + " I_FOG"[2].z * " I_FOG"[2].z) / " I_FOG"[2].z;\n");
|
|
WRITE (p, "\tze *= x_adjust;\n");
|
|
}
|
|
|
|
WRITE (p, "\tfloat fog = saturate(ze - " I_FOG"[1].z);\n");
|
|
|
|
if (bpmem.fog.c_proj_fsel.fsel > 3)
|
|
{
|
|
WRITE(p, "%s", tevFogFuncsTable[bpmem.fog.c_proj_fsel.fsel]);
|
|
}
|
|
else
|
|
{
|
|
if (bpmem.fog.c_proj_fsel.fsel != 2)
|
|
WARN_LOG(VIDEO, "Unknown Fog Type! %08x", bpmem.fog.c_proj_fsel.fsel);
|
|
}
|
|
|
|
WRITE(p, "\tprev.rgb = lerp(prev.rgb, " I_FOG"[0].rgb, fog);\n");
|
|
}
|