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Move alpha pretest to BPMemory.h and rename a bunch of alpha testing related stuff

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NeoBrainX
2013-01-08 17:18:45 +01:00
parent c80f6e8b84
commit d26bcb0847
9 changed files with 68 additions and 72 deletions
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70
Source/Core/VideoCommon/Src/PixelShaderGen.cpp
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@ -28,12 +28,6 @@
#include "NativeVertexFormat.h"
#define ALPHATEST_PASS 2
#define ALPHATEST_FAIL 1
#define ALPHATEST_UNDETERMINED 0
static unsigned int AlphaPreTest();
static void StageHash(int stage, u32* out)
{
out[0] |= bpmem.combiners[stage].colorC.hex & 0xFFFFFF; // 24
@ -119,7 +113,7 @@ void GetPixelShaderId(PIXELSHADERUID *uid, DSTALPHA_MODE dstAlphaMode, u32 compo
if (!enablePL) uid->values[0] |= xfregs.numTexGen.numTexGens << 11; // 4
u32 alphaPreTest = AlphaPreTest();
AlphaTest::TEST_RESULT alphaPreTest = bpmem.alpha_test.TestResult();
uid->values[0] |= alphaPreTest << 15; // 2
// numtexgens should be <= 8
@ -153,11 +147,11 @@ void GetPixelShaderId(PIXELSHADERUID *uid, DSTALPHA_MODE dstAlphaMode, u32 compo
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 != ALPHATEST_FAIL)
if (alphaPreTest != AlphaTest::FAIL)
{
ptr[0] |= bpmem.fog.c_proj_fsel.fsel << 8; // 3
ptr[0] |= bpmem.ztex2.op << 11; // 2
@ -227,7 +221,7 @@ void GetSafePixelShaderId(PIXELSHADERUIDSAFE *uid, DSTALPHA_MODE dstAlphaMode, u
ptr = &uid->values[112];
*ptr++ = bpmem.alphaFunc.hex; // 112
*ptr++ = bpmem.alpha_test.hex; // 112
*ptr++ = bpmem.fog.c_proj_fsel.hex; // 113
*ptr++ = bpmem.fogRange.Base.hex; // 114
@ -719,8 +713,8 @@ const char *GeneratePixelShaderCode(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType
WRITE(p, "prev = frac(prev * (255.0f/256.0f)) * (256.0f/255.0f);\n");
// TODO: ALPHATEST_FAIL should be handled by disabling color writes in the render state
int Pretest = AlphaPreTest();
if (Pretest == ALPHATEST_UNDETERMINED)
AlphaTest::TEST_RESULT Pretest = bpmem.alpha_test.TestResult();
if (Pretest == AlphaTest::UNDETERMINED)
WriteAlphaTest(p, ApiType, dstAlphaMode);
// the screen space depth value = far z + (clip z / clip w) * z range
@ -1149,48 +1143,6 @@ static const char *tevAlphaFunclogicTable[] =
" == " // xnor
};
static unsigned 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 ALPHATEST_PASS;
if (comp[0] == ALPHACMP_NEVER || comp[1] == ALPHACMP_NEVER)
return ALPHATEST_FAIL;
break;
case 1: // OR
if (comp[0] == ALPHACMP_ALWAYS || comp[1] == ALPHACMP_ALWAYS)
return ALPHATEST_PASS;
if (comp[0] == ALPHACMP_NEVER && comp[1] == ALPHACMP_NEVER)
return ALPHATEST_FAIL;
break;
case 2: // XOR
if ((comp[0] == ALPHACMP_ALWAYS && comp[1] == ALPHACMP_NEVER) || (comp[0] == ALPHACMP_NEVER && comp[1] == ALPHACMP_ALWAYS))
return ALPHATEST_PASS;
if ((comp[0] == ALPHACMP_ALWAYS && comp[1] == ALPHACMP_ALWAYS) || (comp[0] == ALPHACMP_NEVER && comp[1] == ALPHACMP_NEVER))
return ALPHATEST_FAIL;
break;
case 3: // XNOR
if ((comp[0] == ALPHACMP_ALWAYS && comp[1] == ALPHACMP_NEVER) || (comp[0] == ALPHACMP_NEVER && comp[1] == ALPHACMP_ALWAYS))
return ALPHATEST_FAIL;
if ((comp[0] == ALPHACMP_ALWAYS && comp[1] == ALPHACMP_ALWAYS) || (comp[0] == ALPHACMP_NEVER && comp[1] == ALPHACMP_NEVER))
return ALPHATEST_PASS;
break;
default: PanicAlert("bad logic for alpha test? %08x", op);
}
return ALPHATEST_UNDETERMINED;
}
static void WriteAlphaTest(char *&p, API_TYPE ApiType,DSTALPHA_MODE dstAlphaMode)
{
static const char *alphaRef[2] =
@ -1202,12 +1154,12 @@ 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, "if(!( ");
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");