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Add --hlsl-dx-position-w option

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This reciprocates the w component of SV_Position in HLSL fragment shaders
to provide DirectX compatibility for HLSL shaders in Vulkan.

Fixes #2244
This commit is contained in:
Greg Fischer 2021-11-16 18:42:12 -07:00
parent 8a7860e4cb
commit e9564feb55
9 changed files with 323 additions and 2 deletions
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10
glslang/MachineIndependent/localintermediate.h
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@ -290,6 +290,7 @@ public:
resources(TBuiltInResource{}),
numEntryPoints(0), numErrors(0), numPushConstants(0), recursive(false),
invertY(false),
dxPositionW(false),
useStorageBuffer(false),
invariantAll(false),
nanMinMaxClamp(false),
@ -460,6 +461,14 @@ public:
}
bool getInvertY() const { return invertY; }
void setDxPositionW(bool dxPosW)
{
dxPositionW = dxPosW;
if (dxPositionW)
processes.addProcess("dx-position-w");
}
bool getDxPositionW() const { return dxPositionW; }
#ifdef ENABLE_HLSL
void setSource(EShSource s) { source = s; }
EShSource getSource() const { return source; }
@ -1070,6 +1079,7 @@ protected:
int numPushConstants;
bool recursive;
bool invertY;
bool dxPositionW;
bool useStorageBuffer;
bool invariantAll;
bool nanMinMaxClamp; // true if desiring min/max/clamp to favor non-NaN over NaN