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Masked store experiment (which turned out to be much slower)

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This commit is contained in:
Magnus Norddahl 2016-12-01 10:52:53 +01:00
commit e3b3b7a4ce
7 changed files with 206 additions and 4 deletions
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125
tools/drawergen/fixedfunction/drawtrianglecodegen.cpp
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@ -541,6 +541,131 @@ void DrawTriangleCodegen::LoopPartialBlock()
loopy.end_block();
}
#if 0
void DrawTriangleCodegen::LoopMaskedStoreBlock()
{
if (variant == TriDrawVariant::Stencil)
{
}
else if (variant == TriDrawVariant::StencilClose)
{
}
else
{
int pixelsize = truecolor ? 4 : 1;
AffineW = posx_w;
for (int i = 0; i < TriVertex::NumVarying; i++)
AffineVaryingPosY[i] = posx_varying[i];
SSAInt CY1 = C1 + DX12 * y0 - DY12 * x0;
SSAInt CY2 = C2 + DX23 * y0 - DY23 * x0;
SSAInt CY3 = C3 + DX31 * y0 - DY31 * x0;
for (int iy = 0; iy < q; iy++)
{
SSAUBytePtr buffer = dest[(x + iy * pitch) * pixelsize];
SSAIntPtr subsectorbuffer = subsectorGBuffer[x + iy * pitch];
SetupAffineBlock();
SSAInt CX1 = CY1;
SSAInt CX2 = CY2;
SSAInt CX3 = CY3;
for (int ix = 0; ix < q; ix += 4)
{
SSABool covered[4];
for (int maskindex = 0; maskindex < 4; maskindex++)
{
covered[maskindex] = CX1 > SSAInt(0) && CX2 > SSAInt(0) && CX3 > SSAInt(0);
if (variant == TriDrawVariant::DrawSubsector || variant == TriDrawVariant::FillSubsector || variant == TriDrawVariant::FuzzSubsector)
{
auto xx = SSAInt(ix + maskindex);
auto yy = SSAInt(iy);
covered[maskindex] = covered[maskindex] && SSABool::compare_uge(StencilGet(xx, yy), stencilTestValue) && subsectorbuffer[ix + maskindex].load(true) >= subsectorDepth;
}
else if (variant == TriDrawVariant::StencilClose)
{
auto xx = SSAInt(ix + maskindex);
auto yy = SSAInt(iy);
covered[maskindex] = covered[maskindex] && SSABool::compare_uge(StencilGet(xx, yy), stencilTestValue);
}
else
{
auto xx = SSAInt(ix + maskindex);
auto yy = SSAInt(iy);
covered[maskindex] = covered[maskindex] && StencilGet(xx, yy) == stencilTestValue;
}
CX1 = CX1 - FDY12;
CX2 = CX2 - FDY23;
CX3 = CX3 - FDY31;
}
SSAUBytePtr buf = buffer[ix * pixelsize];
if (truecolor)
{
SSAVec16ub pixels16 = buf.load_unaligned_vec16ub(false);
SSAVec8s pixels8hi = SSAVec8s::extendhi(pixels16);
SSAVec8s pixels8lo = SSAVec8s::extendlo(pixels16);
SSAVec4i pixels[4] =
{
SSAVec4i::extendlo(pixels8lo),
SSAVec4i::extendhi(pixels8lo),
SSAVec4i::extendlo(pixels8hi),
SSAVec4i::extendhi(pixels8hi)
};
for (int sse = 0; sse < 4; sse++)
{
pixels[sse] = ProcessPixel32(pixels[sse], AffineVaryingPosX);
for (int i = 0; i < TriVertex::NumVarying; i++)
AffineVaryingPosX[i] = AffineVaryingPosX[i] + AffineVaryingStepX[i];
}
buf.store_masked_vec16ub(SSAVec16ub(SSAVec8s(pixels[0], pixels[1]), SSAVec8s(pixels[2], pixels[3])), covered);
}
else
{
SSAVec4i pixelsvec = buf.load_vec4ub(false);
SSAInt pixels[4] =
{
pixelsvec[0],
pixelsvec[1],
pixelsvec[2],
pixelsvec[3]
};
for (int sse = 0; sse < 4; sse++)
{
pixels[sse] = ProcessPixel8(pixels[sse], AffineVaryingPosX);
for (int i = 0; i < TriVertex::NumVarying; i++)
AffineVaryingPosX[i] = AffineVaryingPosX[i] + AffineVaryingStepX[i];
}
buf.store_masked_vec4ub(SSAVec4i(pixels[0], pixels[1], pixels[2], pixels[3]), covered);
}
if (variant != TriDrawVariant::DrawSubsector && variant != TriDrawVariant::FillSubsector && variant != TriDrawVariant::FuzzSubsector)
subsectorbuffer[ix].store_masked_vec4i(SSAVec4i(subsectorDepth), covered);
}
AffineW = AffineW + gradWY;
for (int i = 0; i < TriVertex::NumVarying; i++)
AffineVaryingPosY[i] = AffineVaryingPosY[i] + gradVaryingY[i];
CY1 = CY1 + FDX12;
CY2 = CY2 + FDX23;
CY3 = CY3 + FDX31;
}
}
}
#endif
SSAVec4i DrawTriangleCodegen::TranslateSample32(SSAInt uvoffset)
{
if (variant == TriDrawVariant::FillNormal || variant == TriDrawVariant::FillSubsector || variant == TriDrawVariant::FuzzSubsector)