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Fix interpolation bug in the affine texturing block

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This commit is contained in:
Magnus Norddahl 2016-11-23 22:55:24 +01:00
parent 91d180bec6
commit 8bd92a2c48
3 changed files with 47 additions and 21 deletions
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62
src/r_compiler/fixedfunction/drawtrianglecodegen.cpp
View file

@ -242,15 +242,15 @@ void DrawTriangleCodegen::LoopBlockX()
SSAFloat varyingBL = (startVarying[i] + offx0 * gradVaryingX[i] + offy1 * gradVaryingY[i]) * rcpWBL;
SSAFloat varyingBR = (startVarying[i] + offx1 * gradVaryingX[i] + offy1 * gradVaryingY[i]) * rcpWBR;
SSAFloat pos = varyingTL;
SSAFloat stepPos = (varyingBL - varyingTL) * (1.0f / q);
SSAFloat startStepX = (varyingTR - varyingTL) * (1.0f / q);
SSAFloat incrStepX = (varyingBR - varyingBL) * (1.0f / q) - startStepX;
SSAFloat endStepX = (varyingBR - varyingBL) * (1.0f / q);
SSAFloat incrStepX = (endStepX - startStepX) * (1.0f / q);
SSAFloat stepY = (varyingBL - varyingTL) * (1.0f / q);
varyingPos[i] = SSAInt(pos * SSAFloat((float)0x01000000), false);
varyingStepPos[i] = SSAInt(stepPos * SSAFloat((float)0x01000000), false);
varyingStartStepX[i] = SSAInt(startStepX * SSAFloat((float)0x01000000), false);
varyingIncrStepX[i] = SSAInt(incrStepX * SSAFloat((float)0x01000000), false);
varyingPos[i] = SSAInt(varyingTL * SSAFloat((float)0x01000000), false) << 8;
varyingStepY[i] = SSAInt(stepY * SSAFloat((float)0x01000000), false) << 8;
varyingStartStepX[i] = SSAInt(startStepX * SSAFloat((float)0x01000000), false) << 8;
varyingIncrStepX[i] = SSAInt(incrStepX * SSAFloat((float)0x01000000), false) << 8;
}
SSAFloat globVis = SSAFloat(1706.0f);
@ -314,18 +314,22 @@ void DrawTriangleCodegen::LoopFullBlock()
{
int pixelsize = truecolor ? 4 : 1;
SSAInt varyingLine[TriVertex::NumVarying];
SSAInt varyingStepX[TriVertex::NumVarying];
for (int i = 0; i < TriVertex::NumVarying; i++)
{
varyingLine[i] = varyingPos[i];
varyingStepX[i] = varyingStartStepX[i];
}
for (int iy = 0; iy < q; iy++)
{
SSAUBytePtr buffer = dest[(x + iy * pitch) * pixelsize];
SSAIntPtr subsectorbuffer = subsectorGBuffer[x + iy * pitch];
SSAInt varying[TriVertex::NumVarying];
SSAInt varyingStep[TriVertex::NumVarying];
for (int i = 0; i < TriVertex::NumVarying; i++)
{
varying[i] = (varyingPos[i] + varyingStepPos[i] * iy) << 8;
varyingStep[i] = (varyingStartStepX[i] + varyingIncrStepX[i] * iy) << 8;
}
varying[i] = varyingLine[i];
for (int ix = 0; ix < q; ix += 4)
{
@ -356,7 +360,7 @@ void DrawTriangleCodegen::LoopFullBlock()
}
for (int i = 0; i < TriVertex::NumVarying; i++)
varying[i] = varying[i] + varyingStep[i];
varying[i] = varying[i] + varyingStepX[i];
}
buf.store_unaligned_vec16ub(SSAVec16ub(SSAVec8s(pixels[0], pixels[1]), SSAVec8s(pixels[2], pixels[3])));
@ -385,7 +389,7 @@ void DrawTriangleCodegen::LoopFullBlock()
}
for (int i = 0; i < TriVertex::NumVarying; i++)
varying[i] = varying[i] + varyingStep[i];
varying[i] = varying[i] + varyingStepX[i];
}
buf.store_vec4ub(SSAVec4i(pixels[0], pixels[1], pixels[2], pixels[3]));
@ -394,6 +398,12 @@ void DrawTriangleCodegen::LoopFullBlock()
if (variant != TriDrawVariant::DrawSubsector && variant != TriDrawVariant::FillSubsector && variant != TriDrawVariant::FuzzSubsector)
subsectorbuffer[ix].store_unaligned_vec4i(SSAVec4i(subsectorDepth));
}
for (int i = 0; i < TriVertex::NumVarying; i++)
{
varyingLine[i] = varyingLine[i] + varyingStepY[i];
varyingStepX[i] = varyingStepX[i] + varyingIncrStepX[i];
}
}
}
@ -413,6 +423,11 @@ void DrawTriangleCodegen::LoopPartialBlock()
stack_iy.store(SSAInt(0));
stack_buffer.store(dest[x * pixelsize]);
stack_subsectorbuffer.store(subsectorGBuffer[x]);
for (int i = 0; i < TriVertex::NumVarying; i++)
{
stack_varyingLine[i].store(varyingPos[i]);
stack_varyingStep[i].store(varyingStartStepX[i]);
}
SSAForBlock loopy;
SSAInt iy = stack_iy.load();
@ -421,14 +436,17 @@ void DrawTriangleCodegen::LoopPartialBlock()
SSAInt CY1 = stack_CY1.load();
SSAInt CY2 = stack_CY2.load();
SSAInt CY3 = stack_CY3.load();
SSAInt varyingLine[TriVertex::NumVarying];
SSAInt varyingStep[TriVertex::NumVarying];
for (int i = 0; i < TriVertex::NumVarying; i++)
{
varyingLine[i] = stack_varyingLine[i].load();
varyingStep[i] = stack_varyingStep[i].load();
}
loopy.loop_block(iy < SSAInt(q), q);
{
SSAInt varyingStep[TriVertex::NumVarying];
for (int i = 0; i < TriVertex::NumVarying; i++)
{
stack_varying[i].store((varyingPos[i] + varyingStepPos[i] * iy) << 8);
varyingStep[i] = (varyingStartStepX[i] + varyingIncrStepX[i] * iy) << 8;
}
stack_varying[i].store(varyingLine[i]);
stack_CX1.store(CY1);
stack_CX2.store(CY2);
@ -495,6 +513,12 @@ void DrawTriangleCodegen::LoopPartialBlock()
}
loopx.end_block();
for (int i = 0; i < TriVertex::NumVarying; i++)
{
stack_varyingLine[i].store(varyingLine[i] + varyingStepY[i]);
stack_varyingStep[i].store(varyingStep[i] + varyingIncrStepX[i]);
}
stack_CY1.store(CY1 + FDX12);
stack_CY2.store(CY2 + FDX23);
stack_CY3.store(CY3 + FDX31);

4
src/r_compiler/fixedfunction/drawtrianglecodegen.h
View file

@ -79,6 +79,8 @@ private:
SSAStack<SSAUBytePtr> stack_buffer;
SSAStack<SSAIntPtr> stack_subsectorbuffer;
SSAStack<SSAInt> stack_iy, stack_ix;
SSAStack<SSAInt> stack_varyingLine[TriVertex::NumVarying];
SSAStack<SSAInt> stack_varyingStep[TriVertex::NumVarying];
SSAStack<SSAInt> stack_varying[TriVertex::NumVarying];
SSAStack<SSAInt> stack_CY1, stack_CY2, stack_CY3;
SSAStack<SSAInt> stack_CX1, stack_CX2, stack_CX3;
@ -137,7 +139,7 @@ private:
SSAInt currentlight;
SSAUBytePtr currentcolormap;
SSAInt varyingPos[TriVertex::NumVarying];
SSAInt varyingStepPos[TriVertex::NumVarying];
SSAInt varyingStepY[TriVertex::NumVarying];
SSAInt varyingStartStepX[TriVertex::NumVarying];
SSAInt varyingIncrStepX[TriVertex::NumVarying];

2
src/r_compiler/llvmdrawers.cpp
View file

@ -127,7 +127,7 @@ LLVMDrawers *LLVMDrawers::Instance()
LLVMDrawersImpl::LLVMDrawersImpl()
{
int version = 5; // Increment this number if the drawer codegen is modified (forces recreation of the module).
int version = 6; // Increment this number if the drawer codegen is modified (forces recreation of the module).
std::string targetCPU = mProgram.GetTargetCPU();
bool loaded = mProgram.LoadCachedModule(version, targetCPU);
if (!loaded)