diff options
Diffstat (limited to 'Source/Core/VideoCommon/Src/PixelShaderGen.cpp')
| -rw-r--r-- | Source/Core/VideoCommon/Src/PixelShaderGen.cpp | 219 |
1 files changed, 111 insertions, 108 deletions
diff --git a/Source/Core/VideoCommon/Src/PixelShaderGen.cpp b/Source/Core/VideoCommon/Src/PixelShaderGen.cpp index fe5827de05..7500997fef 100644 --- a/Source/Core/VideoCommon/Src/PixelShaderGen.cpp +++ b/Source/Core/VideoCommon/Src/PixelShaderGen.cpp @@ -158,7 +158,7 @@ void GetPixelShaderId(PIXELSHADERUID *uid, DSTALPHA_MODE dstAlphaMode, u32 compo } u32* ptr = &uid->values[2]; - for (int i = 0; i < bpmem.genMode.numtevstages+1; ++i) + for (unsigned int i = 0; i < bpmem.genMode.numtevstages+1; ++i) { StageHash(i, ptr); ptr += 4; // max: ptr = &uid->values[66] @@ -299,7 +299,7 @@ void ValidatePixelShaderIDs(API_TYPE api, PIXELSHADERUIDSAFE old_id, const std:: static void WriteStage(char *&p, int n, API_TYPE ApiType); static void SampleTexture(char *&p, const char *destination, const char *texcoords, const char *texswap, int texmap, API_TYPE ApiType); // static void WriteAlphaCompare(char *&p, int num, int comp); -static bool WriteAlphaTest(char *&p, API_TYPE ApiType,DSTALPHA_MODE dstAlphaMode); +static void WriteAlphaTest(char *&p, API_TYPE ApiType,DSTALPHA_MODE dstAlphaMode); static void WriteFog(char *&p); static const char *tevKSelTableC[] = // KCSEL @@ -556,26 +556,22 @@ const char *GeneratePixelShaderCode(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType WRITE(p, "\n"); - WRITE(p, "uniform float4 "I_COLORS"[4] : register(c%d);\n", C_COLORS); - WRITE(p, "uniform float4 "I_KCOLORS"[4] : register(c%d);\n", C_KCOLORS); - WRITE(p, "uniform float4 "I_ALPHA"[1] : register(c%d);\n", C_ALPHA); - WRITE(p, "uniform float4 "I_TEXDIMS"[8] : register(c%d);\n", C_TEXDIMS); - if (ApiType & API_D3D9) - { - WRITE(p, "uniform float4 "I_VTEXSCALE"[4] : register(c%d);\n", C_VTEXSCALE); - } - WRITE(p, "uniform float4 "I_ZBIAS"[2] : register(c%d);\n", C_ZBIAS); - WRITE(p, "uniform float4 "I_INDTEXSCALE"[2] : register(c%d);\n", C_INDTEXSCALE); - WRITE(p, "uniform float4 "I_INDTEXMTX"[6] : register(c%d);\n", C_INDTEXMTX); - WRITE(p, "uniform float4 "I_FOG"[3] : register(c%d);\n", C_FOG); + WRITE(p, "uniform float4 " I_COLORS"[4] : register(c%d);\n", C_COLORS); + WRITE(p, "uniform float4 " I_KCOLORS"[4] : register(c%d);\n", C_KCOLORS); + WRITE(p, "uniform float4 " I_ALPHA"[1] : register(c%d);\n", C_ALPHA); + WRITE(p, "uniform float4 " I_TEXDIMS"[8] : register(c%d);\n", C_TEXDIMS); + WRITE(p, "uniform float4 " I_ZBIAS"[2] : register(c%d);\n", C_ZBIAS); + WRITE(p, "uniform float4 " I_INDTEXSCALE"[2] : register(c%d);\n", C_INDTEXSCALE); + WRITE(p, "uniform float4 " I_INDTEXMTX"[6] : register(c%d);\n", C_INDTEXMTX); + WRITE(p, "uniform float4 " I_FOG"[3] : register(c%d);\n", C_FOG); if(g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting) { WRITE(p,"typedef struct { float4 col; float4 cosatt; float4 distatt; float4 pos; float4 dir; } Light;\n"); - WRITE(p,"typedef struct { Light lights[8]; } s_"I_PLIGHTS";\n"); - WRITE(p, "uniform s_"I_PLIGHTS" "I_PLIGHTS" : register(c%d);\n", C_PLIGHTS); - WRITE(p, "typedef struct { float4 C0, C1, C2, C3; } s_"I_PMATERIALS";\n"); - WRITE(p, "uniform s_"I_PMATERIALS" "I_PMATERIALS" : register(c%d);\n", C_PMATERIALS); + WRITE(p,"typedef struct { Light lights[8]; } s_" I_PLIGHTS";\n"); + WRITE(p, "uniform s_" I_PLIGHTS" " I_PLIGHTS" : register(c%d);\n", C_PLIGHTS); + WRITE(p, "typedef struct { float4 C0, C1, C2, C3; } s_" I_PMATERIALS";\n"); + WRITE(p, "uniform s_" I_PMATERIALS" " I_PMATERIALS" : register(c%d);\n", C_PMATERIALS); } WRITE(p, "void main(\n"); @@ -623,25 +619,32 @@ const char *GeneratePixelShaderCode(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType char* pmainstart = p; int Pretest = AlphaPreTest(); - if (dstAlphaMode == DSTALPHA_ALPHA_PASS && !DepthTextureEnable && Pretest >= 0) + if(Pretest >= 0 && !DepthTextureEnable) { if (!Pretest) { - // alpha test will always fail, so restart the shader and just make it an empty function + // alpha test will always fail, so restart the shader and just make it an empty function WRITE(p, "ocol0 = 0;\n"); + if(DepthTextureEnable) + WRITE(p, "depth = 1.f;\n"); + if(dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND) + WRITE(p, "ocol1 = 0;\n"); WRITE(p, "discard;\n"); if(ApiType != API_D3D11) WRITE(p, "return;\n"); } - else + else if (dstAlphaMode == DSTALPHA_ALPHA_PASS) { - WRITE(p, " ocol0 = "I_ALPHA"[0].aaaa;\n"); + WRITE(p, " ocol0 = " I_ALPHA"[0].aaaa;\n"); + } + if(!Pretest || dstAlphaMode == DSTALPHA_ALPHA_PASS) + { + WRITE(p, "}\n"); + return text; } - WRITE(p, "}\n"); - return text; } - 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" + 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" " float4 alphabump=float4(0.0f,0.0f,0.0f,0.0f);\n" " float3 tevcoord=float3(0.0f, 0.0f, 0.0f);\n" @@ -692,7 +695,7 @@ const char *GeneratePixelShaderCode(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType WRITE(p, " uv%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); + WRITE(p, "uv%d.xy = uv%d.xy * " I_TEXDIMS"[%d].zw;\n", i, i, i); } } @@ -704,7 +707,7 @@ const char *GeneratePixelShaderCode(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType int texcoord = bpmem.tevindref.getTexCoord(i); if (texcoord < numTexgen) - WRITE(p, "tempcoord = uv%d.xy * "I_INDTEXSCALE"[%d].%s;\n", texcoord, i/2, (i&1)?"zw":"xy"); + WRITE(p, "tempcoord = uv%d.xy * " I_INDTEXSCALE"[%d].%s;\n", texcoord, i/2, (i&1)?"zw":"xy"); else WRITE(p, "tempcoord = float2(0.0f, 0.0f);\n"); @@ -727,65 +730,53 @@ const char *GeneratePixelShaderCode(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType // emulation of unsigned 8 overflow when casting WRITE(p, "prev = frac(4.0f + prev * (255.0f/256.0f)) * (256.0f/255.0f);\n"); - // TODO: Why are we doing a second alpha pretest here? - if (!WriteAlphaTest(p, ApiType, dstAlphaMode)) + if(Pretest == -1) { - // alpha test will always fail, so restart the shader and just make it an empty function - p = pmainstart; - WRITE(p, "ocol0 = 0;\n"); - if(DepthTextureEnable) - WRITE(p, "depth = 1.f;\n"); - if(dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND) - WRITE(p, "ocol1 = 0;\n"); - WRITE(p, "discard;\n"); - if(ApiType != API_D3D11) - WRITE(p, "return;\n"); + WriteAlphaTest(p, ApiType, dstAlphaMode); } - else - { - if((bpmem.fog.c_proj_fsel.fsel != 0) || DepthTextureEnable) - { - // the screen space depth value = far z + (clip z / clip w) * z range - WRITE(p, "float zCoord = "I_ZBIAS"[1].x + (clipPos.z / clipPos.w) * "I_ZBIAS"[1].y;\n"); - } + if((bpmem.fog.c_proj_fsel.fsel != 0) || DepthTextureEnable) + { + // the screen space depth value = far z + (clip z / clip w) * z range + WRITE(p, "float zCoord = " I_ZBIAS"[1].x + (clipPos.z / clipPos.w) * " I_ZBIAS"[1].y;\n"); + } - if (DepthTextureEnable) + if (DepthTextureEnable) + { + // use the texture input of the last texture stage (textemp), hopefully this has been read and is in correct format... + if (bpmem.ztex2.op != ZTEXTURE_DISABLE && !bpmem.zcontrol.zcomploc && bpmem.zmode.testenable && bpmem.zmode.updateenable) { - // use the texture input of the last texture stage (textemp), hopefully this has been read and is in correct format... - if (bpmem.ztex2.op != ZTEXTURE_DISABLE && !bpmem.zcontrol.zcomploc && bpmem.zmode.testenable && bpmem.zmode.updateenable) - { - if (bpmem.ztex2.op == ZTEXTURE_ADD) - WRITE(p, "zCoord = dot("I_ZBIAS"[0].xyzw, textemp.xyzw) + "I_ZBIAS"[1].w + zCoord;\n"); - else - WRITE(p, "zCoord = dot("I_ZBIAS"[0].xyzw, textemp.xyzw) + "I_ZBIAS"[1].w;\n"); - - // 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"); - } - WRITE(p, "depth = zCoord;\n"); - } + if (bpmem.ztex2.op == ZTEXTURE_ADD) + WRITE(p, "zCoord = dot(" I_ZBIAS"[0].xyzw, textemp.xyzw) + " I_ZBIAS"[1].w + zCoord;\n"); + else + WRITE(p, "zCoord = dot(" I_ZBIAS"[0].xyzw, textemp.xyzw) + " I_ZBIAS"[1].w;\n"); - if (dstAlphaMode == DSTALPHA_ALPHA_PASS) - WRITE(p, " ocol0 = float4(prev.rgb, "I_ALPHA"[0].a);\n"); - else - { - WriteFog(p); - WRITE(p, " ocol0 = prev;\n"); + // 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"); } + WRITE(p, "depth = zCoord;\n"); + } - // On D3D11, use dual-source color blending to perform dst alpha in a - // single pass - if (dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND) - { - // Colors will be blended against the alpha from ocol1... - WRITE(p, " ocol1 = ocol0;\n"); - // ...and the alpha from ocol0 will be written to the framebuffer. - WRITE(p, " ocol0.a = "I_ALPHA"[0].a;\n"); - } + if (dstAlphaMode == DSTALPHA_ALPHA_PASS) + WRITE(p, " ocol0 = float4(prev.rgb, " I_ALPHA"[0].a);\n"); + else + { + WriteFog(p); + WRITE(p, " ocol0 = prev;\n"); } + + // On D3D11, use dual-source color blending to perform dst alpha in a + // single pass + if (dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND) + { + // Colors will be blended against the alpha from ocol1... + WRITE(p, " ocol1 = ocol0;\n"); + // ...and the alpha from ocol0 will be written to the framebuffer. + WRITE(p, " ocol0.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!"); @@ -876,20 +867,20 @@ static void WriteStage(char *&p, int n, API_TYPE ApiType) 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", + 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); + 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); + 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 = 0;\n", n); @@ -1103,15 +1094,9 @@ static void WriteStage(char *&p, int n, API_TYPE ApiType) 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 if (ApiType & API_D3D9) - { - // D3D9 uses different pixel to texel mapping, so we need to offset our sampling address by half a pixel (assuming native and virtual texture dimensions match each other, otherwise some math is involved). - // Read the MSDN article "Directly Mapping Texels to Pixels (Direct3D 9)" for further info. - WRITE(p, "%s=tex2D(samp%d, (%s.xy + 0.5f*"I_VTEXSCALE"[%d].%s) * "I_TEXDIMS"[%d].xy).%s;\n", destination, texmap, texcoords, texmap/2, (texmap&1)?"zw":"xy", texmap, texswap); - } + 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=tex2D(samp%d, %s.xy * "I_TEXDIMS"[%d].xy).%s;\n", destination, texmap, texcoords, texmap, texswap); + WRITE(p, "%s=tex2D(samp%d,%s.xy * " I_TEXDIMS"[%d].xy).%s;\n", destination, texmap, texcoords, texmap, texswap); } static const char *tevAlphaFuncsTable[] = @@ -1167,19 +1152,13 @@ static int AlphaPreTest() } -static bool WriteAlphaTest(char *&p, API_TYPE ApiType,DSTALPHA_MODE dstAlphaMode) +static void WriteAlphaTest(char *&p, API_TYPE ApiType,DSTALPHA_MODE dstAlphaMode) { static const char *alphaRef[2] = { I_ALPHA"[0].r", I_ALPHA"[0].g" - }; - - int Pretest = AlphaPreTest(); - if(Pretest >= 0) - { - return Pretest != 0; - } + }; // using discard then return works the same in cg and dx9 but not in dx11 WRITE(p, "if(!( "); @@ -1191,11 +1170,35 @@ static bool WriteAlphaTest(char *&p, API_TYPE ApiType,DSTALPHA_MODE dstAlphaMode compindex = bpmem.alphaFunc.comp1 % 8; WRITE(p, tevAlphaFuncsTable[compindex],alphaRef[1]);//lookup the second component from the alpha function table - WRITE(p, ")){ocol0 = 0;%s%s discard;%s}\n", - dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND ? "ocol1 = 0;" : "", - DepthTextureEnable ? "depth = 1.f;" : "", - (ApiType != API_D3D11) ? "return;" : ""); - return true; + WRITE(p, ")) {\n"); + + WRITE(p, "ocol0 = 0;\n"); + if (dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND) + WRITE(p, "ocol1 = 0;\n"); + if (DepthTextureEnable) + WRITE(p, "depth = 1.f;\n"); + + // HAXX: zcomploc is a way to control whether depth test is done before + // or after texturing and alpha test. PC GPU does depth test before texturing ONLY if depth value is + // not updated during shader execution. + // 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. + // this implemnetation is a trick to keep speed. + // the correct, but slow, way to implement a correct zComploc is : + // 1 - if zcomplock is enebled make a first pass, with color channel write disabled updating only + // depth channel. + // 2 - in the next pass disable depth chanel update, but proccess the color data normally + // this way is the only CORRECT way to emulate perfectly the zcomplock behaviour + if (!(bpmem.zcontrol.zcomploc && bpmem.zmode.updateenable)) + { + WRITE(p, "discard;\n"); + if (ApiType != API_D3D11) + WRITE(p, "return;\n"); + } + + WRITE(p, "}\n"); + } static const char *tevFogFuncsTable[] = @@ -1218,13 +1221,13 @@ static void WriteFog(char *&p) { // perspective // ze = A/(B - (Zs >> B_SHF) - WRITE (p, " float ze = "I_FOG"[1].x / ("I_FOG"[1].y - (zCoord / "I_FOG"[1].w));\n"); + WRITE (p, " float 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, " float ze = "I_FOG"[1].x * zCoord;\n"); + WRITE (p, " float ze = " I_FOG"[1].x * zCoord;\n"); } // x_adjust = sqrt((x-center)^2 + k^2)/k @@ -1232,12 +1235,12 @@ static void WriteFog(char *&p) //this is complitly teorical as the real hard seems to use a table intead of calculate the values. if(bpmem.fogRange.Base.Enabled) { - WRITE (p, " float x_adjust = (2.0f * (clipPos.x / "I_FOG"[2].y)) - 1.0f - "I_FOG"[2].x;\n"); - WRITE (p, " x_adjust = sqrt(x_adjust * x_adjust + "I_FOG"[2].z * "I_FOG"[2].z) / "I_FOG"[2].z;\n"); + WRITE (p, " float x_adjust = (2.0f * (clipPos.x / " I_FOG"[2].y)) - 1.0f - " I_FOG"[2].x;\n"); + WRITE (p, " x_adjust = sqrt(x_adjust * x_adjust + " I_FOG"[2].z * " I_FOG"[2].z) / " I_FOG"[2].z;\n"); WRITE (p, " ze *= x_adjust;\n"); } - WRITE (p, " float fog = saturate(ze - "I_FOG"[1].z);\n"); + WRITE (p, " float fog = saturate(ze - " I_FOG"[1].z);\n"); if(bpmem.fog.c_proj_fsel.fsel > 3) { @@ -1249,7 +1252,7 @@ static void WriteFog(char *&p) WARN_LOG(VIDEO, "Unknown Fog Type! %08x", bpmem.fog.c_proj_fsel.fsel); } - WRITE(p, " prev.rgb = lerp(prev.rgb,"I_FOG"[0].rgb,fog);\n"); + WRITE(p, " prev.rgb = lerp(prev.rgb," I_FOG"[0].rgb,fog);\n"); -}
\ No newline at end of file +} |