Skip to content

G
glslang
Commit dabd1bf2 by John Kessenich Committed by GitHub
Options

Merge pull request #1076 from LoopDawg/shadow-tx-types

HLSL: force textures to shadow modes from combined samplers
parents fc7aeaee 195f584e
Showing with 107 additions and 52 deletions
Test/baseResults/hlsl.samplecmp.negative.frag.out
hlsl.samplecmp.negative.frag
ERROR: 0:9: '' : expected: SamplerComparisonState
ERROR: 0:10: '' : expected: SamplerComparisonState
ERROR: 1 compilation errors. No code generated.
Shader version: 500
gl_FragCoord origin is upper left
ERROR: node is still EOpNull!
0:7 Function Definition: @main( ( temp 4-component vector of float)
0:7 Function Parameters:
0:8 Function Definition: @main( ( temp 4-component vector of float)
0:8 Function Parameters:
0:? Sequence
0:8 texture ( temp float)
0:8 Construct combined texture-sampler ( temp sampler2DShadow)
0:8 'g_shadowTex' ( uniform texture2D)
0:8 'g_shadowSamplerComp' ( uniform sampler)
0:8 Construct vec3 ( temp 3-component vector of float)
0:9 texture ( temp float)
0:9 Construct combined texture-sampler ( temp sampler2DShadow)
0:9 'g_shadowTex' ( uniform texture2DShadow)
0:9 'g_shadowSamplerComp' ( uniform sampler)
0:9 Construct vec3 ( temp 3-component vector of float)
0:? Constant:
0:? 0.000000
0:? 0.000000
0:8 Constant:
0:8 0.000000
0:9 ERROR: Bad aggregation op
0:9 Constant:
0:9 0.000000
0:10 ERROR: Bad aggregation op
( temp float)
0:9 'g_shadowTex' ( uniform texture2D)
0:9 'g_shadowSampler' ( uniform sampler)
0:10 'g_nonShadowTex' ( uniform texture2D)
0:10 'g_shadowSampler' ( uniform sampler)
0:? Constant:
0:? 0.000000
0:? 0.000000
0:9 Constant:
0:9 0.000000
0:11 Branch: Return with expression
0:11 Constant:
0:11 0.000000
0:11 0.000000
0:11 0.000000
0:11 0.000000
0:7 Function Definition: main( ( temp void)
0:7 Function Parameters:
0:10 Constant:
0:10 0.000000
0:12 Branch: Return with expression
0:12 Constant:
0:12 0.000000
0:12 0.000000
0:12 0.000000
0:12 0.000000
0:8 Function Definition: main( ( temp void)
0:8 Function Parameters:
0:? Sequence
0:7 move second child to first child ( temp 4-component vector of float)
0:8 move second child to first child ( temp 4-component vector of float)
0:? '@entryPointOutput' (layout( location=0) out 4-component vector of float)
0:7 Function Call: @main( ( temp 4-component vector of float)
0:8 Function Call: @main( ( temp 4-component vector of float)
0:? Linker Objects
0:? 'g_shadowTex' ( uniform texture2D)
0:? 'g_nonShadowTex' ( uniform texture2D)
0:? 'g_shadowTex' ( uniform texture2DShadow)
0:? 'g_shadowSampler' ( uniform sampler)
0:? 'g_shadowSamplerComp' ( uniform sampler)
0:? '@entryPointOutput' (layout( location=0) out 4-component vector of float)
......@@ -53,42 +54,43 @@ Linked fragment stage:
Shader version: 500
gl_FragCoord origin is upper left
ERROR: node is still EOpNull!
0:7 Function Definition: @main( ( temp 4-component vector of float)
0:7 Function Parameters:
0:8 Function Definition: @main( ( temp 4-component vector of float)
0:8 Function Parameters:
0:? Sequence
0:8 texture ( temp float)
0:8 Construct combined texture-sampler ( temp sampler2DShadow)
0:8 'g_shadowTex' ( uniform texture2D)
0:8 'g_shadowSamplerComp' ( uniform sampler)
0:8 Construct vec3 ( temp 3-component vector of float)
0:9 texture ( temp float)
0:9 Construct combined texture-sampler ( temp sampler2DShadow)
0:9 'g_shadowTex' ( uniform texture2DShadow)
0:9 'g_shadowSamplerComp' ( uniform sampler)
0:9 Construct vec3 ( temp 3-component vector of float)
0:? Constant:
0:? 0.000000
0:? 0.000000
0:8 Constant:
0:8 0.000000
0:9 ERROR: Bad aggregation op
0:9 Constant:
0:9 0.000000
0:10 ERROR: Bad aggregation op
( temp float)
0:9 'g_shadowTex' ( uniform texture2D)
0:9 'g_shadowSampler' ( uniform sampler)
0:10 'g_nonShadowTex' ( uniform texture2D)
0:10 'g_shadowSampler' ( uniform sampler)
0:? Constant:
0:? 0.000000
0:? 0.000000
0:9 Constant:
0:9 0.000000
0:11 Branch: Return with expression
0:11 Constant:
0:11 0.000000
0:11 0.000000
0:11 0.000000
0:11 0.000000
0:7 Function Definition: main( ( temp void)
0:7 Function Parameters:
0:10 Constant:
0:10 0.000000
0:12 Branch: Return with expression
0:12 Constant:
0:12 0.000000
0:12 0.000000
0:12 0.000000
0:12 0.000000
0:8 Function Definition: main( ( temp void)
0:8 Function Parameters:
0:? Sequence
0:7 move second child to first child ( temp 4-component vector of float)
0:8 move second child to first child ( temp 4-component vector of float)
0:? '@entryPointOutput' (layout( location=0) out 4-component vector of float)
0:7 Function Call: @main( ( temp 4-component vector of float)
0:8 Function Call: @main( ( temp 4-component vector of float)
0:? Linker Objects
0:? 'g_shadowTex' ( uniform texture2D)
0:? 'g_nonShadowTex' ( uniform texture2D)
0:? 'g_shadowTex' ( uniform texture2DShadow)
0:? 'g_shadowSampler' ( uniform sampler)
0:? 'g_shadowSamplerComp' ( uniform sampler)
0:? '@entryPointOutput' (layout( location=0) out 4-component vector of float)
......
Test/hlsl.samplecmp.negative.frag
Texture2D g_nonShadowTex;
Texture2D g_shadowTex;
SamplerState g_shadowSampler;
SamplerComparisonState g_shadowSamplerComp;
......@@ -6,7 +7,7 @@ SamplerComparisonState g_shadowSamplerComp;
float4 main() : SV_Target0
{
g_shadowTex.SampleCmp(g_shadowSamplerComp, float2(0,0), 0); // OK
g_shadowTex.SampleCmp(g_shadowSampler, float2(0,0), 0); // ERROR (should be comparison sampler)
g_nonShadowTex.SampleCmp(g_shadowSampler, float2(0,0), 0); // ERROR (should be comparison sampler)
return 0;
}
hlsl/hlslParseHelper.cpp
......@@ -2946,6 +2946,36 @@ TIntermAggregate* HlslParseContext::handleSamplerTextureCombine(const TSourceLoc
samplerType.combined = true;
samplerType.shadow = argSampler->getType().getSampler().shadow;
{
// ** TODO: **
// This forces the texture's shadow state to be the sampler's
// shadow state. This can't work if a single texture is used with
// both comparison and non-comparison samplers, so an error is
// reported if the shader does that.
//
// If this code is ever removed (possibly due to a relaxation in the
// SPIR-V rules), also remove the textureShadowMode member variable.
TIntermSymbol* texSymbol = argTex->getAsSymbolNode();
if (texSymbol == nullptr)
texSymbol = argTex->getAsBinaryNode()->getLeft()->getAsSymbolNode();
if (texSymbol != nullptr) {
const auto textureShadowModeEntry = textureShadowMode.find(texSymbol->getId());
// Check to see if this texture has been given a different shadow mode already.
if (textureShadowModeEntry != textureShadowMode.end() &&
textureShadowModeEntry->second != samplerType.shadow) {
error(loc, "all uses of texture must use the same shadow mode", "", "");
return nullptr;
}
argTex->getWritableType().getSampler().shadow = samplerType.shadow;
textureShadowMode[texSymbol->getId()] = samplerType.shadow;
}
}
txcombine->setType(TType(samplerType, EvqTemporary));
txcombine->setLoc(loc);
......@@ -9463,6 +9493,21 @@ void HlslParseContext::removeUnusedStructBufferCounters()
linkageSymbols.erase(endIt, linkageSymbols.end());
}
// Finalization step: patch texture shadow modes to match samplers they were combined with
void HlslParseContext::fixTextureShadowModes()
{
for (auto symbol = linkageSymbols.begin(); symbol != linkageSymbols.end(); ++symbol) {
TSampler& sampler = (*symbol)->getWritableType().getSampler();
if (sampler.isTexture()) {
const auto shadowMode = textureShadowMode.find((*symbol)->getUniqueId());
if (shadowMode != textureShadowMode.end())
sampler.shadow = shadowMode->second;
}
}
}
// post-processing
void HlslParseContext::finish()
{
......@@ -9474,6 +9519,7 @@ void HlslParseContext::finish()
removeUnusedStructBufferCounters();
addPatchConstantInvocation();
fixTextureShadowModes();
TParseContextBase::finish();
}
......
hlsl/hlslParseHelper.h
......@@ -262,6 +262,7 @@ protected:
bool wasSplit(int id) const { return splitNonIoVars.find(id) != splitNonIoVars.end(); }
TVariable* getSplitNonIoVar(int id) const;
void addPatchConstantInvocation();
void fixTextureShadowModes();
TIntermTyped* makeIntegerIndex(TIntermTyped*);
void fixBuiltInIoType(TType&);
......@@ -455,6 +456,11 @@ protected:
};
TVector<tMipsOperatorData> mipsOperatorMipArg;
// This can be removed if and when the texture shadow workarounnd in
// HlslParseContext::handleSamplerTextureCombine is removed. It maps
// texture symbol IDs to the shadow modes of samplers they were combined with.
TMap<int, bool> textureShadowMode;
};
// This is the prefix we use for built-in methods to avoid namespace collisions with
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment