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HLSL: Handle greater/less depth modes. Fixes issue #489.

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This commit is contained in:
John Kessenich 2016-09-02 20:05:19 -06:00
parent a305166ea4
commit 9e079535a0
9 changed files with 158 additions and 13 deletions
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57
Test/baseResults/hlsl.depthGreater.frag.out Executable file
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@ -0,0 +1,57 @@
hlsl.depthGreater.frag
Shader version: 450
gl_FragCoord origin is upper left
using depth_greater
0:? Sequence
0:2 Function Definition: PixelShaderFunction(f1; (global void)
0:2 Function Parameters:
0:2 'depth' (out float FragDepth)
0:? Sequence
0:3 move second child to first child (temp float)
0:3 'depth' (out float FragDepth)
0:3 Constant:
0:3 0.200000
0:? Linker Objects
Linked fragment stage:
Shader version: 450
gl_FragCoord origin is upper left
using depth_greater
0:? Sequence
0:2 Function Definition: PixelShaderFunction(f1; (global void)
0:2 Function Parameters:
0:2 'depth' (out float FragDepth)
0:? Sequence
0:3 move second child to first child (temp float)
0:3 'depth' (out float FragDepth)
0:3 Constant:
0:3 0.200000
0:? Linker Objects
// Module Version 10000
// Generated by (magic number): 80001
// Id's are bound by 10
Capability Shader
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint Fragment 4 "PixelShaderFunction" 8
ExecutionMode 4 OriginUpperLeft
ExecutionMode 4 DepthGreater
Name 4 "PixelShaderFunction"
Name 8 "depth"
Decorate 8(depth) BuiltIn FragDepth
2: TypeVoid
3: TypeFunction 2
6: TypeFloat 32
7: TypePointer Output 6(float)
8(depth): 7(ptr) Variable Output
9: 6(float) Constant 1045220557
4(PixelShaderFunction): 2 Function None 3
5: Label
Store 8(depth) 9
Return
FunctionEnd

58
Test/baseResults/hlsl.depthLess.frag.out Executable file
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@ -0,0 +1,58 @@
hlsl.depthLess.frag
Shader version: 450
gl_FragCoord origin is upper left
using depth_less
0:? Sequence
0:2 Function Definition: PixelShaderFunction( (global float FragDepth)
0:2 Function Parameters:
0:? Sequence
0:3 Sequence
0:3 move second child to first child (temp float)
0:? '@entryPointOutput' (out float unknown built-in variable)
0:3 Constant:
0:3 0.200000
0:3 Branch: Return
0:? Linker Objects
Linked fragment stage:
Shader version: 450
gl_FragCoord origin is upper left
using depth_less
0:? Sequence
0:2 Function Definition: PixelShaderFunction( (global float FragDepth)
0:2 Function Parameters:
0:? Sequence
0:3 Sequence
0:3 move second child to first child (temp float)
0:? '@entryPointOutput' (out float unknown built-in variable)
0:3 Constant:
0:3 0.200000
0:3 Branch: Return
0:? Linker Objects
// Module Version 10000
// Generated by (magic number): 80001
// Id's are bound by 11
Capability Shader
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint Fragment 4 "PixelShaderFunction" 8
ExecutionMode 4 OriginUpperLeft
ExecutionMode 4 DepthLess
Name 4 "PixelShaderFunction"
Name 8 "@entryPointOutput"
2: TypeVoid
3: TypeFunction 2
6: TypeFloat 32
7: TypePointer Output 6(float)
8(@entryPointOutput): 7(ptr) Variable Output
9: 6(float) Constant 1045220557
4(PixelShaderFunction): 2 Function None 3
5: Label
Store 8(@entryPointOutput) 9
Return
FunctionEnd

4
Test/hlsl.depthGreater.frag Normal file
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@ -0,0 +1,4 @@
void PixelShaderFunction(out float depth : SV_DepthGreaterEqual)
{
depth = 0.2;
}

4
Test/hlsl.depthLess.frag Normal file
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@ -0,0 +1,4 @@
float PixelShaderFunction() : SV_DepthLessEqual
{
return 0.2;
}

5
glslang/Include/BaseTypes.h
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@ -196,6 +196,11 @@ enum TBuiltInVariable {
EbvBaryCoordPullModel,
#endif
// HLSL built-ins that live only temporarily, until they get remapped
// to one of the above.
EbvFragDepthGreater,
EbvFragDepthLesser,
EbvLast
};

2
glslang/Include/revision.h
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@ -2,5 +2,5 @@
// For the version, it uses the latest git tag followed by the number of commits.
// For the date, it uses the current date (when then script is run).
#define GLSLANG_REVISION "Overload400-PrecQual.1461"
#define GLSLANG_REVISION "Overload400-PrecQual.1463"
#define GLSLANG_DATE "02-Sep-2016"

2
gtests/Hlsl.FromFile.cpp
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@ -81,6 +81,8 @@ INSTANTIATE_TEST_CASE_P(
{"hlsl.cast.frag", "PixelShaderFunction"},
{"hlsl.conditional.frag", "PixelShaderFunction"},
{"hlsl.constructexpr.frag", "main"},
{"hlsl.depthGreater.frag", "PixelShaderFunction"},
{"hlsl.depthLess.frag", "PixelShaderFunction"},
{"hlsl.discard.frag", "PixelShaderFunction"},
{"hlsl.doLoop.frag", "PixelShaderFunction"},
{"hlsl.entry-out.frag", "PixelShaderFunction"},

10
hlsl/hlslGrammar.cpp
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@ -302,10 +302,10 @@ bool HlslGrammar::acceptDeclaration(TIntermNode*& node)
HlslToken idToken;
while (acceptIdentifier(idToken)) {
// function_parameters
TFunction* function = new TFunction(idToken.string, type);
if (acceptFunctionParameters(*function)) {
TFunction& function = *new TFunction(idToken.string, type);
if (acceptFunctionParameters(function)) {
// post_decls
acceptPostDecls(type);
acceptPostDecls(function.getWritableType());
// compound_statement (function body definition) or just a prototype?
if (peekTokenClass(EHTokLeftBrace)) {
@ -313,11 +313,11 @@ bool HlslGrammar::acceptDeclaration(TIntermNode*& node)
parseContext.error(idToken.loc, "function body can't be in a declarator list", "{", "");
if (typedefDecl)
parseContext.error(idToken.loc, "function body can't be in a typedef", "{", "");
return acceptFunctionDefinition(*function, node);
return acceptFunctionDefinition(function, node);
} else {
if (typedefDecl)
parseContext.error(idToken.loc, "function typedefs not implemented", "{", "");
parseContext.handleFunctionDeclarator(idToken.loc, *function, true);
parseContext.handleFunctionDeclarator(idToken.loc, function, true);
}
} else {
// a variable declaration

29
hlsl/hlslParseHelper.cpp
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@ -819,6 +819,21 @@ void HlslParseContext::remapEntrypointIO(TFunction& function)
unsigned int inCount = 0;
unsigned int outCount = 0;
const auto remapBuiltInType = [&](TType& type) {
switch (type.getQualifier().builtIn) {
case EbvFragDepthGreater:
intermediate.setDepth(EldGreater);
type.getQualifier().builtIn = EbvFragDepth;
break;
case EbvFragDepthLesser:
intermediate.setDepth(EldLess);
type.getQualifier().builtIn = EbvFragDepth;
break;
default:
break;
}
};
// return value is actually a shader-scoped output (out)
if (function.getType().getBasicType() != EbtVoid) {
entryPointOutput = makeInternalVariable("@entryPointOutput", function.getType());
@ -827,6 +842,7 @@ void HlslParseContext::remapEntrypointIO(TFunction& function)
entryPointOutput->getWritableType().getQualifier().layoutLocation = outCount;
outCount += intermediate.computeTypeLocationSize(function.getType());
}
remapBuiltInType(function.getWritableType());
}
// parameters are actually shader-scoped inputs and outputs (in or out)
@ -844,6 +860,7 @@ void HlslParseContext::remapEntrypointIO(TFunction& function)
outCount += intermediate.computeTypeLocationSize(*function[i].type);
}
}
remapBuiltInType(*function[i].type);
}
}
@ -2423,13 +2440,11 @@ void HlslParseContext::handleSemantic(TSourceLoc loc, TType& type, const TString
type.getQualifier().builtIn = EbvFragDepth;
//TODO, these need to get refined to be more specific
else if( semanticUpperCase == "SV_DEPTHGREATEREQUAL") {
type.getQualifier().builtIn = EbvFragDepth;
warn(loc, "depth mode unimplemented", "SV_DEPTHGREATEREQUAL", "");
} else if( semanticUpperCase == "SV_DEPTHLESSEQUAL") {
type.getQualifier().builtIn = EbvFragDepth;
warn(loc, "depth mode unimplemented", "SV_DEPTHLESSEQUAL", "");
} else if( semanticUpperCase == "SV_STENCILREF")
else if( semanticUpperCase == "SV_DEPTHGREATEREQUAL")
type.getQualifier().builtIn = EbvFragDepthGreater;
else if( semanticUpperCase == "SV_DEPTHLESSEQUAL")
type.getQualifier().builtIn = EbvFragDepthLesser;
else if( semanticUpperCase == "SV_STENCILREF")
error(loc, "unimplemented", "SV_STENCILREF", "");
else if( semanticUpperCase == "SV_COVERAGE")
error(loc, "unimplemented", "SV_COVERAGE", "");