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Diffstat (limited to 'Source/Core/VideoCommon/Src/PixelShaderGen.cpp')
-rw-r--r--Source/Core/VideoCommon/Src/PixelShaderGen.cpp275
1 files changed, 88 insertions, 187 deletions
diff --git a/Source/Core/VideoCommon/Src/PixelShaderGen.cpp b/Source/Core/VideoCommon/Src/PixelShaderGen.cpp
index 31aecfdc85..b3930c991c 100644
--- a/Source/Core/VideoCommon/Src/PixelShaderGen.cpp
+++ b/Source/Core/VideoCommon/Src/PixelShaderGen.cpp
@@ -27,9 +27,8 @@
#include "VideoConfig.h"
#include "NativeVertexFormat.h"
-static int AlphaPreTest();
-static void StageHash(int stage, u32* out)
+static void StageHash(u32 stage, u32* out)
{
out[0] |= bpmem.combiners[stage].colorC.hex & 0xFFFFFF; // 24
u32 alphaC = bpmem.combiners[stage].alphaC.hex & 0xFFFFF0; // 24, strip out tswap and rswap for now
@@ -109,29 +108,17 @@ void GetPixelShaderId(PIXELSHADERUID *uid, DSTALPHA_MODE dstAlphaMode, u32 compo
uid->values[0] |= bpmem.genMode.numtexgens << 4; // 4
uid->values[0] |= dstAlphaMode << 8; // 2
- bool DepthTextureEnable = (bpmem.ztex2.op != ZTEXTURE_DISABLE && !bpmem.zcontrol.zcomploc && bpmem.zmode.testenable && bpmem.zmode.updateenable) || g_ActiveConfig.bEnablePerPixelDepth;
-
- uid->values[0] |= DepthTextureEnable << 10; // 1
-
bool enablePL = g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting;
- uid->values[0] |= enablePL << 11; // 1
+ uid->values[0] |= enablePL << 10; // 1
- if (!enablePL) uid->values[0] |= xfregs.numTexGen.numTexGens << 12; // 4
- u32 alphaPreTest = AlphaPreTest()+1;
+ if (!enablePL) uid->values[0] |= xfregs.numTexGen.numTexGens << 11; // 4
- uid->values[0] |= alphaPreTest << 16; // 2
-
- if (alphaPreTest == 1 || (alphaPreTest && !DepthTextureEnable && dstAlphaMode == DSTALPHA_ALPHA_PASS))
- {
- // Courtesy of PreAlphaTest, we're done already ;)
- // NOTE: The comment header of generated shaders depends on the value of bpmem.genmode.numindstages.. shouldnt really bother about that though.
- uid->num_values = 1;
- return;
- }
+ AlphaTest::TEST_RESULT alphaPreTest = bpmem.alpha_test.TestResult();
+ uid->values[0] |= alphaPreTest << 15; // 2
// numtexgens should be <= 8
for (unsigned int i = 0; i < bpmem.genMode.numtexgens; ++i)
- uid->values[0] |= xfregs.texMtxInfo[i].projection << (18+i); // 1
+ uid->values[0] |= xfregs.texMtxInfo[i].projection << (17+i); // 1
uid->values[1] = bpmem.genMode.numindstages; // 3
u32 indirectStagesUsed = 0;
@@ -154,30 +141,24 @@ 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+1u; ++i)
{
StageHash(i, ptr);
ptr += 4; // max: ptr = &uid->values[66]
}
- ptr[0] |= bpmem.alphaFunc.comp0; // 3
- ptr[0] |= bpmem.alphaFunc.comp1 << 3; // 3
- ptr[0] |= bpmem.alphaFunc.logic << 6; // 2
+ ptr[0] |= bpmem.alpha_test.comp0; // 3
+ ptr[0] |= bpmem.alpha_test.comp1 << 3; // 3
+ ptr[0] |= bpmem.alpha_test.logic << 6; // 2
- if (alphaPreTest == 0 || alphaPreTest == 2)
- {
- ptr[0] |= bpmem.fog.c_proj_fsel.fsel << 8; // 3
- if (DepthTextureEnable)
- {
- ptr[0] |= bpmem.ztex2.op << 11; // 2
- ptr[0] |= bpmem.zcontrol.zcomploc << 13; // 1
- ptr[0] |= bpmem.zmode.testenable << 14; // 1
- ptr[0] |= bpmem.zmode.updateenable << 15; // 1
- }
- }
+ ptr[0] |= bpmem.ztex2.op << 8; // 2
+ ptr[0] |= bpmem.zcontrol.early_ztest << 10; // 1
+ ptr[0] |= bpmem.zmode.testenable << 11; // 1
+ ptr[0] |= bpmem.zmode.updateenable << 12; // 1
if (dstAlphaMode != DSTALPHA_ALPHA_PASS)
{
+ ptr[0] |= bpmem.fog.c_proj_fsel.fsel << 13; // 3
if (bpmem.fog.c_proj_fsel.fsel != 0)
{
ptr[0] |= bpmem.fog.c_proj_fsel.proj << 16; // 1
@@ -204,9 +185,8 @@ void GetSafePixelShaderId(PIXELSHADERUIDSAFE *uid, DSTALPHA_MODE dstAlphaMode, u
*ptr++ = bpmem.ztex2.hex; // 2
*ptr++ = bpmem.zcontrol.hex; // 3
*ptr++ = bpmem.zmode.hex; // 4
- *ptr++ = g_ActiveConfig.bEnablePerPixelDepth; // 5
- *ptr++ = g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting; // 6
- *ptr++ = xfregs.numTexGen.hex; // 7
+ *ptr++ = g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting; // 5
+ *ptr++ = xfregs.numTexGen.hex; // 6
if (g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting)
{
@@ -218,28 +198,28 @@ void GetSafePixelShaderId(PIXELSHADERUIDSAFE *uid, DSTALPHA_MODE dstAlphaMode, u
}
for (unsigned int i = 0; i < 8; ++i)
- *ptr++ = xfregs.texMtxInfo[i].hex; // 8-15
+ *ptr++ = xfregs.texMtxInfo[i].hex; // 7-14
for (unsigned int i = 0; i < 16; ++i)
- *ptr++ = bpmem.tevind[i].hex; // 16-31
+ *ptr++ = bpmem.tevind[i].hex; // 15-30
- *ptr++ = bpmem.tevindref.hex; // 32
+ *ptr++ = bpmem.tevindref.hex; // 31
- for (u32 i = 0; i < bpmem.genMode.numtevstages+1; ++i) // up to 16 times
+ for (u32 i = 0; i < bpmem.genMode.numtevstages+1u; ++i) // up to 16 times
{
- *ptr++ = bpmem.combiners[i].colorC.hex; // 33+5*i
- *ptr++ = bpmem.combiners[i].alphaC.hex; // 34+5*i
- *ptr++ = bpmem.tevind[i].hex; // 35+5*i
- *ptr++ = bpmem.tevksel[i/2].hex; // 36+5*i
- *ptr++ = bpmem.tevorders[i/2].hex; // 37+5*i
+ *ptr++ = bpmem.combiners[i].colorC.hex; // 32+5*i
+ *ptr++ = bpmem.combiners[i].alphaC.hex; // 33+5*i
+ *ptr++ = bpmem.tevind[i].hex; // 34+5*i
+ *ptr++ = bpmem.tevksel[i/2].hex; // 35+5*i
+ *ptr++ = bpmem.tevorders[i/2].hex; // 36+5*i
}
- ptr = &uid->values[113];
+ ptr = &uid->values[112];
- *ptr++ = bpmem.alphaFunc.hex; // 113
+ *ptr++ = bpmem.alpha_test.hex; // 112
- *ptr++ = bpmem.fog.c_proj_fsel.hex; // 114
- *ptr++ = bpmem.fogRange.Base.hex; // 115
+ *ptr++ = bpmem.fog.c_proj_fsel.hex; // 113
+ *ptr++ = bpmem.fogRange.Base.hex; // 114
_assert_((ptr - uid->values) == uid->GetNumValues());
}
@@ -308,10 +288,10 @@ static const char *tevKSelTableC[] = // KCSEL
"0.375f,0.375f,0.375f", // 3_8 = 0x05
"0.25f,0.25f,0.25f", // 1_4 = 0x06
"0.125f,0.125f,0.125f", // 1_8 = 0x07
- "ERROR", // 0x08
- "ERROR", // 0x09
- "ERROR", // 0x0a
- "ERROR", // 0x0b
+ "ERROR1", // 0x08
+ "ERROR2", // 0x09
+ "ERROR3", // 0x0a
+ "ERROR4", // 0x0b
I_KCOLORS"[0].rgb", // K0 = 0x0C
I_KCOLORS"[1].rgb", // K1 = 0x0D
I_KCOLORS"[2].rgb", // K2 = 0x0E
@@ -344,14 +324,14 @@ static const char *tevKSelTableA[] = // KASEL
"0.375f",// 3_8 = 0x05
"0.25f", // 1_4 = 0x06
"0.125f",// 1_8 = 0x07
- "ERROR", // 0x08
- "ERROR", // 0x09
- "ERROR", // 0x0a
- "ERROR", // 0x0b
- "ERROR", // 0x0c
- "ERROR", // 0x0d
- "ERROR", // 0x0e
- "ERROR", // 0x0f
+ "ERROR5", // 0x08
+ "ERROR6", // 0x09
+ "ERROR7", // 0x0a
+ "ERROR8", // 0x0b
+ "ERROR9", // 0x0c
+ "ERROR10", // 0x0d
+ "ERROR11", // 0x0e
+ "ERROR12", // 0x0f
I_KCOLORS"[0].r", // K0_R = 0x10
I_KCOLORS"[1].r", // K1_R = 0x11
I_KCOLORS"[2].r", // K2_R = 0x12
@@ -426,7 +406,7 @@ static const char *tevCInputTable[] = // CC
"float3(0.5f, 0.5f, 0.5f)", // HALF
"(ckonsttemp.rgb)", //"konsttemp.rgb", // KONST
"float3(0.0f, 0.0f, 0.0f)", // ZERO
- "PADERROR", "PADERROR", "PADERROR", "PADERROR"
+ "PADERROR1", "PADERROR2", "PADERROR3", "PADERROR4"
};
static const char *tevAInputTable[] = // CA
@@ -448,17 +428,17 @@ static const char *tevAInputTable[] = // CA
"crastemp", // RASA,
"ckonsttemp", // KONST, (hw1 had quarter)
"float4(0.0f, 0.0f, 0.0f, 0.0f)", // ZERO
- "PADERROR", "PADERROR", "PADERROR", "PADERROR",
- "PADERROR", "PADERROR", "PADERROR", "PADERROR",
+ "PADERROR5", "PADERROR6", "PADERROR7", "PADERROR8",
+ "PADERROR9", "PADERROR10", "PADERROR11", "PADERROR12",
};
static const char *tevRasTable[] =
{
"colors_0",
"colors_1",
- "ERROR", //2
- "ERROR", //3
- "ERROR", //4
+ "ERROR13", //2
+ "ERROR14", //3
+ "ERROR15", //4
"alphabump", // use bump alpha
"(alphabump*(255.0f/248.0f))", //normalized
"float4(0.0f, 0.0f, 0.0f, 0.0f)", // zero
@@ -481,7 +461,6 @@ static const char *tevIndFmtScale[] = {"255.0f", "31.0f", "15.0f", "7.0f" };
static char swapModeTable[4][5];
static char text[16384];
-static bool DepthTextureEnable;
struct RegisterState
{
@@ -546,7 +525,6 @@ const char *GeneratePixelShaderCode(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType
nIndirectStagesUsed |= 1 << bpmem.tevind[i].bt;
}
}
- DepthTextureEnable = (bpmem.ztex2.op != ZTEXTURE_DISABLE && !bpmem.zcontrol.zcomploc && bpmem.zmode.testenable && bpmem.zmode.updateenable) || g_ActiveConfig.bEnablePerPixelDepth ;
if (ApiType == API_OPENGL)
{
@@ -639,8 +617,7 @@ const char *GeneratePixelShaderCode(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType
if (dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND)
WRITE(p, "out float4 ocol1;\n");
- if (DepthTextureEnable)
- WRITE(p, "float depth;\n");
+ WRITE(p, "float depth;\n");
WRITE(p, "float4 rawpos = gl_FragCoord;\n");
WRITE(p, "VARYIN float4 colors_02;\n");
@@ -695,14 +672,14 @@ const char *GeneratePixelShaderCode(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType
{
WRITE(p, " out float4 ocol0 : COLOR0,%s%s\n in float4 rawpos : %s,\n",
dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND ? "\n out float4 ocol1 : COLOR1," : "",
- DepthTextureEnable ? "\n out float depth : 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," : "",
- DepthTextureEnable ? "\n out float depth : SV_Depth," : "");
+ "\n out float depth : SV_Depth,");
}
WRITE(p, " in float4 colors_0 : COLOR0,\n");
@@ -736,45 +713,14 @@ const char *GeneratePixelShaderCode(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType
}
}
- int Pretest = AlphaPreTest();
- if(Pretest >= 0 && !DepthTextureEnable)
- {
- if (!Pretest)
- {
- // alpha test will always fail, so restart the shader and just make it an empty function
- WRITE(p, "\tocol0 = float4(0.0f, 0.0f, 0.0f, 0.0f);\n");
- if(DepthTextureEnable)
- WRITE(p, "\tdepth = 1.f;\n");
- if(dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND)
- WRITE(p, "\tocol1 = float4(0.0f, 0.0f, 0.0f, 0.0f);\n");
- if (ApiType == API_OPENGL)
- {
- if (DepthTextureEnable)
- WRITE(p, "\tgl_FragDepth = depth;\n");
- }
- WRITE(p, "\tdiscard;\n");
- if(ApiType != API_D3D11)
- WRITE(p, "\treturn;\n");
- }
- else if (dstAlphaMode == DSTALPHA_ALPHA_PASS)
- {
- WRITE(p, "\tocol0 = " I_ALPHA"[0].aaaa;\n");
- }
- if(!Pretest || dstAlphaMode == DSTALPHA_ALPHA_PASS)
- {
- WRITE(p, "}\n");
- return text;
- }
- }
-
- WRITE(p, "\tfloat4 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"
- "\tfloat3 comp16 = float3(1.0f, 255.0f, 0.0f), comp24 = float3(1.0f, 255.0f, 255.0f*255.0f);\n"
- "\tfloat4 alphabump=float4(0.0f,0.0f,0.0f,0.0f);\n"
- "\tfloat3 tevcoord=float3(0.0f, 0.0f, 0.0f);\n"
- "\tfloat2 wrappedcoord=float2(0.0f,0.0f), tempcoord=float2(0.0f,0.0f);\n"
- "\tfloat4 cc0=float4(0.0f,0.0f,0.0f,0.0f), cc1=float4(0.0f,0.0f,0.0f,0.0f);\n"
- "\tfloat4 cc2=float4(0.0f,0.0f,0.0f,0.0f), cprev=float4(0.0f,0.0f,0.0f,0.0f);\n"
- "\tfloat4 crastemp=float4(0.0f,0.0f,0.0f,0.0f),ckonsttemp=float4(0.0f,0.0f,0.0f,0.0f);\n\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"
+ " 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)
{
@@ -874,34 +820,26 @@ const char *GeneratePixelShaderCode(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType
if(RegisterStates[0].AlphaNeedOverflowControl || RegisterStates[0].ColorNeedOverflowControl)
WRITE(p, "\tprev = frac(prev * (255.0f/256.0f)) * (256.0f/255.0f);\n");
- if(Pretest == -1)
- {
+ AlphaTest::TEST_RESULT Pretest = bpmem.alpha_test.TestResult();
+ if (Pretest == AlphaTest::UNDETERMINED)
WriteAlphaTest(p, ApiType, dstAlphaMode);
- }
- if((bpmem.fog.c_proj_fsel.fsel != 0) || DepthTextureEnable)
- {
- // the screen space depth value = far z + (clip z / clip w) * z range
- WRITE(p, "\tfloat zCoord = " I_ZBIAS"[1].x + (clipPos.z / clipPos.w) * " I_ZBIAS"[1].y;\n");
- }
+ // 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)
+ // Note: depth textures are disabled if early depth test is enabled
+ if (bpmem.ztex2.op != ZTEXTURE_DISABLE && !bpmem.zcontrol.early_ztest && bpmem.zmode.testenable)
{
// 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, "\tzCoord = dot(" I_ZBIAS"[0].xyzw, textemp.xyzw) + " I_ZBIAS"[1].w + zCoord;\n");
- else
- WRITE(p, "\tzCoord = dot(" I_ZBIAS"[0].xyzw, textemp.xyzw) + " I_ZBIAS"[1].w;\n");
+ 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, "\tzCoord = zCoord * (16777215.0f/16777216.0f);\n");
- WRITE(p, "\tzCoord = frac(zCoord);\n");
- WRITE(p, "\tzCoord = zCoord * (16777216.0f/16777215.0f);\n");
- }
- WRITE(p, "\tdepth = zCoord;\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 (dstAlphaMode == DSTALPHA_ALPHA_PASS)
WRITE(p, "\tocol0 = float4(prev.rgb, " I_ALPHA"[0].a);\n");
@@ -923,8 +861,7 @@ const char *GeneratePixelShaderCode(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType
if (ApiType == API_OPENGL)
{
- if (DepthTextureEnable)
- WRITE(p, "\tgl_FragDepth = depth;\n");
+ WRITE(p, "\tgl_FragDepth = depth;\n");
}
WRITE(p, "}\n");
if (text[sizeof(text) - 1] != 0x7C)
@@ -1316,39 +1253,6 @@ static const char *tevAlphaFunclogicTable[] =
" != ", // xor
" == " // xnor
};
-static int AlphaPreTest()
-{
- u32 op = bpmem.alphaFunc.logic;
- u32 comp[2] = {bpmem.alphaFunc.comp0, bpmem.alphaFunc.comp1};
-
- // First kill all the simple cases
- switch(op)
- {
- case 0: // AND
- if (comp[0] == ALPHACMP_ALWAYS && comp[1] == ALPHACMP_ALWAYS) return true;
- if (comp[0] == ALPHACMP_NEVER || comp[1] == ALPHACMP_NEVER) return false;
- break;
- case 1: // OR
- if (comp[0] == ALPHACMP_ALWAYS || comp[1] == ALPHACMP_ALWAYS) return true;
- if (comp[0] == ALPHACMP_NEVER && comp[1] == ALPHACMP_NEVER)return false;
- break;
- case 2: // XOR
- if ((comp[0] == ALPHACMP_ALWAYS && comp[1] == ALPHACMP_NEVER) || (comp[0] == ALPHACMP_NEVER && comp[1] == ALPHACMP_ALWAYS))
- return true;
- if ((comp[0] == ALPHACMP_ALWAYS && comp[1] == ALPHACMP_ALWAYS) || (comp[0] == ALPHACMP_NEVER && comp[1] == ALPHACMP_NEVER))
- return false;
- break;
- case 3: // XNOR
- if ((comp[0] == ALPHACMP_ALWAYS && comp[1] == ALPHACMP_NEVER) || (comp[0] == ALPHACMP_NEVER && comp[1] == ALPHACMP_ALWAYS))
- return false;
- if ((comp[0] == ALPHACMP_ALWAYS && comp[1] == ALPHACMP_ALWAYS) || (comp[0] == ALPHACMP_NEVER && comp[1] == ALPHACMP_NEVER))
- return true;
- break;
- default: PanicAlert("bad logic for alpha test? %08x", op);
- }
- return -1;
-}
-
static void WriteAlphaTest(char *&p, API_TYPE ApiType,DSTALPHA_MODE dstAlphaMode)
{
@@ -1362,41 +1266,38 @@ static void WriteAlphaTest(char *&p, API_TYPE ApiType,DSTALPHA_MODE dstAlphaMode
// using discard then return works the same in cg and dx9 but not in dx11
WRITE(p, "\tif(!( ");
- int compindex = bpmem.alphaFunc.comp0 % 8;
+ 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.alphaFunc.logic % 4]);//lookup the logic op
+ WRITE(p, "%s", tevAlphaFunclogicTable[bpmem.alpha_test.logic]);//lookup the logic op
- compindex = bpmem.alphaFunc.comp1 % 8;
+ 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 (DepthTextureEnable)
- WRITE(p, "\t\tdepth = 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.
+ 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.
- // 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))
+ // 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, "\t}\n");
+ WRITE(p, "}\n");
}
static const char *tevFogFuncsTable[] =
generated by cgit v1.2.3 (git 2.25.1) at 2026-08-31 03:18:18 +0000