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HLSL: Flesh out misc. declaration grammar: semantics/registers/annotations/precise/etc.

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Details within these bear even more fleshing out, but would like to have
that driven by actual need.
This commit is contained in:
John Kessenich
2016-06-12 23:52:12 -06:00
parent e6e7494e2a
commit 630dd7da43
10 changed files with 273 additions and 80 deletions
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50
Test/baseResults/hlsl.float4.frag.out
View File

@@ -9,16 +9,20 @@ gl_FragCoord origin is upper left
0:? 0.500000
0:? 0.000000
0:? 1.000000
0:7 Function Definition: ShaderFunction(vf4; (temp 4-component vector of float)
0:4 Function Parameters:
0:4 'input' (temp 4-component vector of float)
0:12 Function Definition: ShaderFunction(vf4; (temp 4-component vector of float)
0:9 Function Parameters:
0:9 'input' (temp 4-component vector of float)
0:? Sequence
0:5 Branch: Return with expression
0:5 component-wise multiply (temp 4-component vector of float)
0:5 'input' (temp 4-component vector of float)
0:5 'AmbientColor' (temp 4-component vector of float)
0:10 Branch: Return with expression
0:10 component-wise multiply (temp 4-component vector of float)
0:10 'input' (temp 4-component vector of float)
0:10 'AmbientColor' (temp 4-component vector of float)
0:? Linker Objects
0:? 'AmbientColor' (temp 4-component vector of float)
0:? 'ff1' (temp bool Face)
0:? 'ff2' (temp 4-component vector of float)
0:? 'ff3' (temp 4-component vector of float)
0:? 'ff4' (temp 4-component vector of float FragCoord)
Linked fragment stage:
@@ -34,20 +38,24 @@ gl_FragCoord origin is upper left
0:? 0.500000
0:? 0.000000
0:? 1.000000
0:7 Function Definition: ShaderFunction(vf4; (temp 4-component vector of float)
0:4 Function Parameters:
0:4 'input' (temp 4-component vector of float)
0:12 Function Definition: ShaderFunction(vf4; (temp 4-component vector of float)
0:9 Function Parameters:
0:9 'input' (temp 4-component vector of float)
0:? Sequence
0:5 Branch: Return with expression
0:5 component-wise multiply (temp 4-component vector of float)
0:5 'input' (temp 4-component vector of float)
0:5 'AmbientColor' (temp 4-component vector of float)
0:10 Branch: Return with expression
0:10 component-wise multiply (temp 4-component vector of float)
0:10 'input' (temp 4-component vector of float)
0:10 'AmbientColor' (temp 4-component vector of float)
0:? Linker Objects
0:? 'AmbientColor' (temp 4-component vector of float)
0:? 'ff1' (temp bool Face)
0:? 'ff2' (temp 4-component vector of float)
0:? 'ff3' (temp 4-component vector of float)
0:? 'ff4' (temp 4-component vector of float FragCoord)
// Module Version 10000
// Generated by (magic number): 80001
// Id's are bound by 19
// Id's are bound by 25
Capability Shader
1: ExtInstImport "GLSL.std.450"
@@ -59,12 +67,20 @@ gl_FragCoord origin is upper left
Name 11 "ShaderFunction(vf4;"
Name 10 "input"
Name 14 "AmbientColor"
Name 21 "ff1"
Name 22 "ff2"
Name 23 "ff3"
Name 24 "ff4"
Decorate 21(ff1) BuiltIn FrontFacing
Decorate 24(ff4) BuiltIn FragCoord
2: TypeVoid
3: TypeFunction 2
6: TypeFloat 32
7: TypeVector 6(float) 4
8: TypePointer Function 7(fvec4)
9: TypeFunction 7(fvec4) 8(ptr)
19: TypeBool
20: TypePointer Function 19(bool)
4(PixelShaderFunction): 2 Function None 3
5: Label
FunctionEnd
@@ -72,6 +88,10 @@ gl_FragCoord origin is upper left
10(input): 8(ptr) FunctionParameter
12: Label
14(AmbientColor): 8(ptr) Variable Function
21(ff1): 20(ptr) Variable Function
22(ff2): 8(ptr) Variable Function
23(ff3): 8(ptr) Variable Function
24(ff4): 8(ptr) Variable Function
13: 7(fvec4) Load 10(input)
15: 7(fvec4) Load 14(AmbientColor)
16: 7(fvec4) FMul 13 15

84
Test/baseResults/hlsl.struct.frag.out
View File

@@ -2,16 +2,19 @@ hlsl.struct.frag
Shader version: 450
gl_FragCoord origin is upper left
0:? Sequence
0:26 Function Definition: PixelShaderFunction(vf4; (temp 4-component vector of float)
0:20 Function Parameters:
0:20 'input' (temp 4-component vector of float)
0:39 Function Definition: PixelShaderFunction(vf4; (temp 4-component vector of float)
0:31 Function Parameters:
0:31 'input' (temp 4-component vector of float)
0:? Sequence
0:25 Compare Equal (temp bool)
0:25 's3' (temp structure{temp 3-component vector of bool b3})
0:25 's3' (temp structure{temp 3-component vector of bool b3})
0:36 Compare Equal (temp bool)
0:36 's3' (temp structure{temp 3-component vector of bool b3})
0:36 's3' (temp structure{temp 3-component vector of bool b3})
0:38 Branch: Return with expression
0:38 'input' (temp 4-component vector of float)
0:? Linker Objects
0:? 's1' (temp structure{temp bool b, temp bool c, temp 4-component vector of float a, temp 4-component vector of float d})
0:? 's2' (temp structure{temp 4-component vector of float i})
0:? 's4' (temp structure{smooth in 4-component vector of float a, flat temp bool b, centroid noperspective temp 1-component vector of float c, centroid sample temp 2-component vector of float d, temp bool Face ff1, temp bool ff2, temp bool ff3, temp 4-component vector of float FragCoord ff4})
Linked fragment stage:
@@ -20,20 +23,23 @@ Linked fragment stage:
Shader version: 450
gl_FragCoord origin is upper left
0:? Sequence
0:26 Function Definition: PixelShaderFunction(vf4; (temp 4-component vector of float)
0:20 Function Parameters:
0:20 'input' (temp 4-component vector of float)
0:39 Function Definition: PixelShaderFunction(vf4; (temp 4-component vector of float)
0:31 Function Parameters:
0:31 'input' (temp 4-component vector of float)
0:? Sequence
0:25 Compare Equal (temp bool)
0:25 's3' (temp structure{temp 3-component vector of bool b3})
0:25 's3' (temp structure{temp 3-component vector of bool b3})
0:36 Compare Equal (temp bool)
0:36 's3' (temp structure{temp 3-component vector of bool b3})
0:36 's3' (temp structure{temp 3-component vector of bool b3})
0:38 Branch: Return with expression
0:38 'input' (temp 4-component vector of float)
0:? Linker Objects
0:? 's1' (temp structure{temp bool b, temp bool c, temp 4-component vector of float a, temp 4-component vector of float d})
0:? 's2' (temp structure{temp 4-component vector of float i})
0:? 's4' (temp structure{smooth in 4-component vector of float a, flat temp bool b, centroid noperspective temp 1-component vector of float c, centroid sample temp 2-component vector of float d, temp bool Face ff1, temp bool ff2, temp bool ff3, temp 4-component vector of float FragCoord ff4})
// Module Version 10000
// Generated by (magic number): 80001
// Id's are bound by 25
// Id's are bound by 33
Capability Shader
1: ExtInstImport "GLSL.std.450"
@@ -45,15 +51,28 @@ gl_FragCoord origin is upper left
Name 8 "FS"
MemberName 8(FS) 0 "b3"
Name 10 "s3"
Name 19 "myS"
MemberName 19(myS) 0 "b"
MemberName 19(myS) 1 "c"
MemberName 19(myS) 2 "a"
MemberName 19(myS) 3 "d"
Name 21 "s1"
Name 22 ""
MemberName 22 0 "i"
Name 24 "s2"
Name 20 "input"
Name 23 "myS"
MemberName 23(myS) 0 "b"
MemberName 23(myS) 1 "c"
MemberName 23(myS) 2 "a"
MemberName 23(myS) 3 "d"
Name 25 "s1"
Name 26 ""
MemberName 26 0 "i"
Name 28 "s2"
Name 30 ""
MemberName 30 0 "a"
MemberName 30 1 "b"
MemberName 30 2 "c"
MemberName 30 3 "d"
MemberName 30 4 "ff1"
MemberName 30 5 "ff2"
MemberName 30 6 "ff3"
MemberName 30 7 "ff4"
Name 32 "s4"
MemberDecorate 30 4 BuiltIn FrontFacing
MemberDecorate 30 7 BuiltIn FragCoord
2: TypeVoid
3: TypeFunction 2
6: TypeBool
@@ -62,20 +81,27 @@ gl_FragCoord origin is upper left
9: TypePointer Function 8(FS)
17: TypeFloat 32
18: TypeVector 17(float) 4
19(myS): TypeStruct 6(bool) 6(bool) 18(fvec4) 18(fvec4)
20: TypePointer Function 19(myS)
22: TypeStruct 18(fvec4)
23: TypePointer Function 22(struct)
19: TypePointer Function 18(fvec4)
23(myS): TypeStruct 6(bool) 6(bool) 18(fvec4) 18(fvec4)
24: TypePointer Function 23(myS)
26: TypeStruct 18(fvec4)
27: TypePointer Function 26(struct)
29: TypeVector 17(float) 2
30: TypeStruct 18(fvec4) 6(bool) 17(float) 29(fvec2) 6(bool) 6(bool) 6(bool) 18(fvec4)
31: TypePointer Function 30(struct)
4(PixelShaderFunction): 2 Function None 3
5: Label
10(s3): 9(ptr) Variable Function
21(s1): 20(ptr) Variable Function
24(s2): 23(ptr) Variable Function
20(input): 19(ptr) Variable Function
25(s1): 24(ptr) Variable Function
28(s2): 27(ptr) Variable Function
32(s4): 31(ptr) Variable Function
11: 8(FS) Load 10(s3)
12: 8(FS) Load 10(s3)
13: 7(bvec3) CompositeExtract 11 0
14: 7(bvec3) CompositeExtract 12 0
15: 7(bvec3) LogicalEqual 13 14
16: 6(bool) All 15
Return
21: 18(fvec4) Load 20(input)
ReturnValue 21
FunctionEnd

5
Test/hlsl.float4.frag
View File

@@ -1,5 +1,10 @@
float4 AmbientColor = float4(1, 0.5, 0, 1);
bool ff1 : SV_IsFrontFace;
float4 ff2 : packoffset(c0.y);
float4 ff3 : packoffset(c0.y) : register(ps_5_0, s[0]) ;
float4 ff4 : VPOS : packoffset(c0.y) : register(ps_5_0, s[0]) <int bambam=30;> ;
float4 ShaderFunction(float4 input) : COLOR0
{
return input * AmbientColor;

13
Test/hlsl.struct.frag
View File

@@ -16,6 +16,17 @@ struct {
float4 i;
} s2;
struct {
linear float4 a;
nointerpolation bool b;
noperspective centroid float1 c;
sample centroid float2 d;
bool ff1 : SV_IsFrontFace;
bool ff2 : packoffset(c0.y);
bool ff3 : packoffset(c0.y) : register(ps_5_0, s[0]) ;
float4 ff4 : VPOS : packoffset(c0.y) : register(ps_5_0, s[0]) <int bambam=30;> ;
} s4;
float4 PixelShaderFunction(float4 input) : COLOR0
{
struct FS {
@@ -23,4 +34,6 @@ float4 PixelShaderFunction(float4 input) : COLOR0
} s3;
s3 == s3;
return input;
}

163
hlsl/hlslGrammar.cpp
View File

@@ -107,10 +107,10 @@ bool HlslGrammar::acceptCompilationUnit()
// declaration
// : SEMICOLON
// : fully_specified_type SEMICOLON
// | fully_specified_type identifier SEMICOLON
// | fully_specified_type identifier = expression SEMICOLON
// | fully_specified_type identifier function_parameters SEMICOLON // function prototype
// | fully_specified_type identifier function_parameters COLON semantic compound_statement // function definition
// | fully_specified_type identifier post_decls SEMICOLON
// | fully_specified_type identifier post_decls = expression SEMICOLON
// | fully_specified_type identifier function_parameters post_decls SEMICOLON // function prototype
// | fully_specified_type identifier function_parameters post_decls compound_statement // function definition
//
// 'node' could get created if the declaration creates code, like an initializer
// or a function body.
@@ -127,6 +127,7 @@ bool HlslGrammar::acceptDeclaration(TIntermNode*& node)
// identifier
HlslToken idToken;
if (acceptIdentifier(idToken)) {
acceptPostDecls(type);
// = expression
TIntermTyped* expressionNode = nullptr;
if (acceptTokenClass(EHTokAssign)) {
@@ -145,8 +146,8 @@ bool HlslGrammar::acceptDeclaration(TIntermNode*& node)
// function_parameters
TFunction* function = new TFunction(idToken.string, type);
if (acceptFunctionParameters(*function)) {
// COLON semantic
acceptSemantic();
// post_decls
acceptPostDecls(type);
// compound_statement
if (peekTokenClass(EHTokLeftBrace))
@@ -186,22 +187,66 @@ bool HlslGrammar::acceptFullySpecifiedType(TType& type)
return true;
}
// If token is a qualifier, return its token class and advance to the next
// qualifier. Otherwise, return false, and don't advance.
// type_qualifier
// : qualifier qualifier ...
//
// Zero or more of these, so this can't return false.
//
void HlslGrammar::acceptQualifier(TQualifier& qualifier)
{
switch (peek()) {
case EHTokUniform:
qualifier.storage = EvqUniform;
break;
case EHTokConst:
qualifier.storage = EvqConst;
break;
default:
return;
}
advanceToken();
do {
switch (peek()) {
case EHTokStatic:
// normal glslang default
break;
case EHTokExtern:
// TODO: no meaning in glslang?
break;
case EHTokShared:
// TODO: hint
break;
case EHTokGroupShared:
qualifier.storage = EvqShared;
break;
case EHTokUniform:
qualifier.storage = EvqUniform;
break;
case EHTokConst:
qualifier.storage = EvqConst;
break;
case EHTokVolatile:
qualifier.volatil = true;
break;
case EHTokLinear:
qualifier.storage = EvqVaryingIn;
qualifier.smooth = true;
break;
case EHTokCentroid:
qualifier.centroid = true;
break;
case EHTokNointerpolation:
qualifier.flat = true;
break;
case EHTokNoperspective:
qualifier.nopersp = true;
break;
case EHTokSample:
qualifier.sample = true;
break;
case EHTokRowMajor:
qualifier.layoutMatrix = ElmRowMajor;
break;
case EHTokColumnMajor:
qualifier.layoutMatrix = ElmColumnMajor;
break;
case EHTokPrecise:
qualifier.noContraction = true;
break;
default:
return;
}
advanceToken();
} while (true);
}
// If token is for a type, update 'type' with the type information,
@@ -627,8 +672,8 @@ bool HlslGrammar::acceptStruct(TType& type)
// : fully_specified_type struct_declarator COMMA struct_declarator ...
//
// struct_declarator
// : IDENTIFIER
// | IDENTIFIER array_specifier
// : IDENTIFIER post_decls
// | IDENTIFIER array_specifier post_decls
//
bool HlslGrammar::acceptStructDeclarationList(TTypeList*& typeList)
{
@@ -668,6 +713,8 @@ bool HlslGrammar::acceptStructDeclarationList(TTypeList*& typeList)
// array_specifier
// TODO
acceptPostDecls(*member.type);
// success on seeing the SEMICOLON coming up
if (peekTokenClass(EHTokSemicolon))
break;
@@ -1570,20 +1617,68 @@ bool HlslGrammar::acceptCaseLabel(TIntermNode*& statement)
return false;
}
// COLON semantic
bool HlslGrammar::acceptSemantic()
// post_decls
// : COLON semantic // optional
// COLON PACKOFFSET LEFT_PAREN ... RIGHT_PAREN // optional
// COLON REGISTER // optional
// annotations // optional
//
void HlslGrammar::acceptPostDecls(TType& type)
{
// COLON
if (acceptTokenClass(EHTokColon)) {
// semantic
HlslToken idToken;
if (! acceptIdentifier(idToken)) {
expected("semantic");
return false;
}
}
do {
// COLON
if (acceptTokenClass(EHTokColon)) {
HlslToken idToken;
if (acceptTokenClass(EHTokPackOffset)) {
if (! acceptTokenClass(EHTokLeftParen)) {
expected("(");
return;
}
acceptTokenClass(EHTokIdentifier);
acceptTokenClass(EHTokDot);
acceptTokenClass(EHTokIdentifier);
if (! acceptTokenClass(EHTokRightParen)) {
expected(")");
break;
}
// TODO: process the packoffset information
} else if (! acceptIdentifier(idToken)) {
expected("semantic or packoffset or register");
return;
} else if (*idToken.string == "register") {
if (! acceptTokenClass(EHTokLeftParen)) {
expected("(");
return;
}
acceptTokenClass(EHTokIdentifier);
acceptTokenClass(EHTokComma);
acceptTokenClass(EHTokIdentifier);
acceptTokenClass(EHTokLeftBracket);
if (peekTokenClass(EHTokIntConstant))
advanceToken();
acceptTokenClass(EHTokRightBracket);
if (! acceptTokenClass(EHTokRightParen)) {
expected(")");
break;
}
// TODO: process the register information
} else {
// semantic, in idToken.string
parseContext.handleSemantic(type, *idToken.string);
}
} else if (acceptTokenClass(EHTokLeftAngle)) {
// TODO: process annotations, just accepting them for now
do {
if (peekTokenClass(EHTokNone))
return;
if (acceptTokenClass(EHTokRightAngle))
break;
advanceToken();
} while (true);
} else
break;
return true;
} while (true);
}
} // end namespace glslang

3
hlsl/hlslGrammar.h
View File

@@ -87,8 +87,7 @@ namespace glslang {
bool acceptIterationStatement(TIntermNode*&);
bool acceptJumpStatement(TIntermNode*&);
bool acceptCaseLabel(TIntermNode*&);
bool acceptSemantic();
void acceptPostDecls(TType&);
HlslParseContext& parseContext; // state of parsing and helper functions for building the intermediate
TIntermediate& intermediate; // the final product, the intermediate representation, includes the AST

32
hlsl/hlslParseHelper.cpp
View File

@@ -1212,6 +1212,38 @@ TFunction* HlslParseContext::handleConstructorCall(const TSourceLoc& loc, const
return new TFunction(&empty, type, op);
}
//
// Handle seeing a "COLON semantic" at the end of a type declaration,
// by updating the type according to the semantic.
//
void HlslParseContext::handleSemantic(TType& type, const TString& semantic)
{
// TODO: need to know if it's an input or an output
// The following sketches what needs to be done, but can't be right
// without taking into account stage and input/output.
if (semantic == "PSIZE")
type.getQualifier().builtIn = EbvPointSize;
else if (semantic == "POSITION")
type.getQualifier().builtIn = EbvPosition;
else if (semantic == "FOG")
type.getQualifier().builtIn = EbvFogFragCoord;
else if (semantic == "DEPTH" || semantic == "SV_Depth")
type.getQualifier().builtIn = EbvFragDepth;
else if (semantic == "VFACE" || semantic == "SV_IsFrontFace")
type.getQualifier().builtIn = EbvFace;
else if (semantic == "VPOS" || semantic == "SV_Position")
type.getQualifier().builtIn = EbvFragCoord;
else if (semantic == "SV_ClipDistance")
type.getQualifier().builtIn = EbvClipDistance;
else if (semantic == "SV_CullDistance")
type.getQualifier().builtIn = EbvCullDistance;
else if (semantic == "SV_VertexID")
type.getQualifier().builtIn = EbvVertexId;
else if (semantic == "SV_ViewportArrayIndex")
type.getQualifier().builtIn = EbvViewportIndex;
}
//
// Given a type, find what operation would fully construct it.
//

1
hlsl/hlslParseHelper.h
View File

@@ -90,6 +90,7 @@ public:
TIntermTyped* addOutputArgumentConversions(const TFunction&, TIntermAggregate&) const;
void builtInOpCheck(const TSourceLoc&, const TFunction&, TIntermOperator&);
TFunction* handleConstructorCall(const TSourceLoc&, const TType&);
void handleSemantic(TType& type, const TString& semantic);
bool parseVectorFields(const TSourceLoc&, const TString&, int vecSize, TVectorFields&);
void assignError(const TSourceLoc&, const char* op, TString left, TString right);

1
hlsl/hlslScanContext.cpp
View File

@@ -102,6 +102,7 @@ void HlslScanContext::fillInKeywordMap()
(*KeywordMap)["extern"] = EHTokExtern;
(*KeywordMap)["uniform"] = EHTokUniform;
(*KeywordMap)["volatile"] = EHTokVolatile;
(*KeywordMap)["precise"] = EHTokPrecise;
(*KeywordMap)["shared"] = EHTokShared;
(*KeywordMap)["groupshared"] = EHTokGroupShared;
(*KeywordMap)["linear"] = EHTokLinear;

1
hlsl/hlslTokens.h
View File

@@ -49,6 +49,7 @@ enum EHlslTokenClass {
EHTokExtern,
EHTokUniform,
EHTokVolatile,
EHTokPrecise,
EHTokShared,
EHTokGroupShared,
EHTokLinear,