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Fix resizing of gl_PrimitiveIndicesNV[] to max_primitives*geomSize

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- This change also allows redeclaration of gl_PrimitiveIndicesNV and
  adds error checks against incorrect explicit array size.
- Also modifies gtests to check array bound limits and redeclare gl_PrimitiveIndicesNV[].
This commit is contained in:
Sahil Parmar 2019-02-11 15:12:13 -08:00
parent 05d12a9461
commit ab027bef3d
6 changed files with 106 additions and 64 deletions
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69
Test/baseResults/spv.meshShaderBuiltins.mesh.out
View File

@ -1,7 +1,7 @@
spv.meshShaderBuiltins.mesh
// Module Version 10000
// Generated by (magic number): 80007
// Id's are bound by 146
// Id's are bound by 148
Capability ClipDistance
Capability CullDistance
@ -14,7 +14,7 @@ spv.meshShaderBuiltins.mesh
Extension "SPV_NV_viewport_array2"
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint MeshNV 4 "main" 11 17 34 88 128 139 143
EntryPoint MeshNV 4 "main" 11 17 34 88 129 142 146
ExecutionMode 4 LocalSize 32 1 1
ExecutionMode 4 OutputVertices 81
ExecutionMode 4 OutputPrimitivesNV 32
@ -43,9 +43,9 @@ spv.meshShaderBuiltins.mesh
MemberName 84(gl_MeshPerPrimitiveNV) 4 "gl_LayerPerViewNV"
MemberName 84(gl_MeshPerPrimitiveNV) 5 "gl_ViewportMaskPerViewNV"
Name 88 "gl_MeshPrimitivesNV"
Name 128 "gl_PrimitiveIndicesNV"
Name 139 "gl_DrawID"
Name 143 "gl_PrimitiveCountNV"
Name 129 "gl_PrimitiveIndicesNV"
Name 142 "gl_DrawID"
Name 146 "gl_PrimitiveCountNV"
Decorate 11(gl_LocalInvocationID) BuiltIn LocalInvocationId
Decorate 17(gl_WorkGroupID) BuiltIn WorkgroupId
MemberDecorate 30(gl_MeshPerVertexNV) 0 BuiltIn Position
@ -74,10 +74,10 @@ spv.meshShaderBuiltins.mesh
MemberDecorate 84(gl_MeshPerPrimitiveNV) 5 PerViewNV
MemberDecorate 84(gl_MeshPerPrimitiveNV) 5 BuiltIn ViewportMaskPerViewNV
Decorate 84(gl_MeshPerPrimitiveNV) Block
Decorate 128(gl_PrimitiveIndicesNV) BuiltIn PrimitiveIndicesNV
Decorate 139(gl_DrawID) BuiltIn DrawIndex
Decorate 143(gl_PrimitiveCountNV) BuiltIn PrimitiveCountNV
Decorate 145 BuiltIn WorkgroupSize
Decorate 129(gl_PrimitiveIndicesNV) BuiltIn PrimitiveIndicesNV
Decorate 142(gl_DrawID) BuiltIn DrawIndex
Decorate 146(gl_PrimitiveCountNV) BuiltIn PrimitiveCountNV
Decorate 147 BuiltIn WorkgroupSize
2: TypeVoid
3: TypeFunction 2
6: TypeInt 32 0
@ -130,17 +130,18 @@ spv.meshShaderBuiltins.mesh
94: 36(int) Constant 7
97: 36(int) Constant 8
100: 36(int) Constant 9
126: TypeArray 6(int) 31
127: TypePointer Output 126
128(gl_PrimitiveIndicesNV): 127(ptr) Variable Output
129: 6(int) Constant 257
130: TypePointer Output 6(int)
138: TypePointer Input 36(int)
139(gl_DrawID): 138(ptr) Variable Input
142: 6(int) Constant 16909060
143(gl_PrimitiveCountNV): 130(ptr) Variable Output
144: 6(int) Constant 96
145: 9(ivec3) ConstantComposite 85 27 27
126: 6(int) Constant 96
127: TypeArray 6(int) 126
128: TypePointer Output 127
129(gl_PrimitiveIndicesNV): 128(ptr) Variable Output
130: 6(int) Constant 257
131: TypePointer Output 6(int)
133: 36(int) Constant 95
141: TypePointer Input 36(int)
142(gl_DrawID): 141(ptr) Variable Input
145: 6(int) Constant 16909060
146(gl_PrimitiveCountNV): 131(ptr) Variable Output
147: 9(ivec3) ConstantComposite 85 27 27
4(main): 2 Function None 3
5: Label
8(iid): 7(ptr) Variable Function
@ -239,19 +240,21 @@ spv.meshShaderBuiltins.mesh
Store 125 124
MemoryBarrier 27 55
ControlBarrier 56 56 55
131: 130(ptr) AccessChain 128(gl_PrimitiveIndicesNV) 37
Store 131 129
132: 6(int) Load 16(gid)
133: 6(int) Load 16(gid)
134: 6(int) ISub 133 27
135: 130(ptr) AccessChain 128(gl_PrimitiveIndicesNV) 134
136: 6(int) Load 135
137: 130(ptr) AccessChain 128(gl_PrimitiveIndicesNV) 132
Store 137 136
140: 36(int) Load 139(gl_DrawID)
141: 6(int) Bitcast 140
142: 141 WritePackedPrimitiveIndices4x8NV
Store 143(gl_PrimitiveCountNV) 144
132: 131(ptr) AccessChain 129(gl_PrimitiveIndicesNV) 37
Store 132 130
134: 131(ptr) AccessChain 129(gl_PrimitiveIndicesNV) 133
Store 134 56
135: 6(int) Load 16(gid)
136: 6(int) Load 16(gid)
137: 6(int) ISub 136 27
138: 131(ptr) AccessChain 129(gl_PrimitiveIndicesNV) 137
139: 6(int) Load 138
140: 131(ptr) AccessChain 129(gl_PrimitiveIndicesNV) 135
Store 140 139
143: 36(int) Load 142(gl_DrawID)
144: 6(int) Bitcast 143
145: 144 WritePackedPrimitiveIndices4x8NV
Store 146(gl_PrimitiveCountNV) 126
MemoryBarrier 27 55
ControlBarrier 56 56 55
Return

24
Test/baseResults/spv.meshShaderRedeclBuiltins.mesh.out
View File

@ -1,7 +1,7 @@
spv.meshShaderRedeclBuiltins.mesh
// Module Version 10000
// Generated by (magic number): 80007
// Id's are bound by 120
// Id's are bound by 129
Capability ClipDistance
Capability CullDistance
@ -12,7 +12,7 @@ spv.meshShaderRedeclBuiltins.mesh
Extension "SPV_NV_viewport_array2"
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint MeshNV 4 "main" 11 17 28 81
EntryPoint MeshNV 4 "main" 11 17 28 81 122 127
ExecutionMode 4 LocalSize 32 1 1
ExecutionMode 4 OutputVertices 81
ExecutionMode 4 OutputPrimitivesNV 32
@ -36,6 +36,8 @@ spv.meshShaderRedeclBuiltins.mesh
MemberName 77(gl_MeshPerPrimitiveNV) 2 "gl_ViewportIndex"
MemberName 77(gl_MeshPerPrimitiveNV) 3 "gl_ViewportMask"
Name 81 "gl_MeshPrimitivesNV"
Name 122 "gl_PrimitiveIndicesNV"
Name 127 "gl_PrimitiveCountNV"
Decorate 11(gl_LocalInvocationID) BuiltIn LocalInvocationId
Decorate 17(gl_WorkGroupID) BuiltIn WorkgroupId
MemberDecorate 24(gl_MeshPerVertexNV) 0 BuiltIn Position
@ -52,7 +54,9 @@ spv.meshShaderRedeclBuiltins.mesh
MemberDecorate 77(gl_MeshPerPrimitiveNV) 3 PerPrimitiveNV
MemberDecorate 77(gl_MeshPerPrimitiveNV) 3 BuiltIn ViewportMaskNV
Decorate 77(gl_MeshPerPrimitiveNV) Block
Decorate 119 BuiltIn WorkgroupSize
Decorate 122(gl_PrimitiveIndicesNV) BuiltIn PrimitiveIndicesNV
Decorate 127(gl_PrimitiveCountNV) BuiltIn PrimitiveCountNV
Decorate 128 BuiltIn WorkgroupSize
2: TypeVoid
3: TypeFunction 2
6: TypeInt 32 0
@ -98,7 +102,14 @@ spv.meshShaderRedeclBuiltins.mesh
87: 30(int) Constant 7
90: 30(int) Constant 8
93: 30(int) Constant 9
119: 9(ivec3) ConstantComposite 78 49 49
119: 6(int) Constant 96
120: TypeArray 6(int) 119
121: TypePointer Output 120
122(gl_PrimitiveIndicesNV): 121(ptr) Variable Output
123: TypePointer Output 6(int)
125: 30(int) Constant 95
127(gl_PrimitiveCountNV): 123(ptr) Variable Output
128: 9(ivec3) ConstantComposite 78 49 49
4(main): 2 Function None 3
5: Label
8(iid): 7(ptr) Variable Function
@ -197,5 +208,10 @@ spv.meshShaderRedeclBuiltins.mesh
Store 118 117
MemoryBarrier 49 50
ControlBarrier 51 51 50
124: 123(ptr) AccessChain 122(gl_PrimitiveIndicesNV) 31
Store 124 49
126: 123(ptr) AccessChain 122(gl_PrimitiveIndicesNV) 125
Store 126 51
Store 127(gl_PrimitiveCountNV) 119
Return
FunctionEnd

5
Test/spv.meshShaderBuiltins.mesh
View File

@ -50,8 +50,9 @@ void main()
BARRIER();
// should truncate 257 -> 1
gl_PrimitiveIndicesNV[0] = 257;
// check bound limits
gl_PrimitiveIndicesNV[0] = 257; // should truncate 257 -> 1
gl_PrimitiveIndicesNV[(MAX_PRIM * 3) - 1] = 2;
gl_PrimitiveIndicesNV[gid] = gl_PrimitiveIndicesNV[gid-1];
// writes 4 indices at offset gl_DrawID

11
Test/spv.meshShaderRedeclBuiltins.mesh
View File

@ -22,14 +22,16 @@ out gl_MeshPerVertexNV {
float gl_PointSize;
float gl_ClipDistance[4];
float gl_CullDistance[4];
} gl_MeshVerticesNV[];
} gl_MeshVerticesNV[MAX_VER]; // explicitly sized to MAX_VER
perprimitiveNV out gl_MeshPerPrimitiveNV {
int gl_PrimitiveID;
int gl_Layer;
int gl_ViewportIndex;
int gl_ViewportMask[];
} gl_MeshPrimitivesNV[];
} gl_MeshPrimitivesNV[]; // implicitly sized to MAX_PRIM
out uint gl_PrimitiveIndicesNV[]; // explicitly sized to MAX_PRIM * 3
void main()
{
@ -63,4 +65,9 @@ void main()
gl_MeshPrimitivesNV[iid+1].gl_ViewportMask[0] = gl_MeshPrimitivesNV[iid].gl_ViewportMask[0];
BARRIER();
// check bound limits
gl_PrimitiveIndicesNV[0] = 1;
gl_PrimitiveIndicesNV[(MAX_PRIM * 3) - 1] = 2;
gl_PrimitiveCountNV = MAX_PRIM * 3;
}

57
glslang/MachineIndependent/ParseHelper.cpp
View File

@ -572,7 +572,7 @@ void TParseContext::handleIoResizeArrayAccess(const TSourceLoc& /*loc*/, TInterm
// fix array size, if it can be fixed and needs to be fixed (will allow variable indexing)
if (symbolNode->getType().isUnsizedArray()) {
int newSize = getIoArrayImplicitSize(symbolNode->getType().getQualifier().isPerPrimitive());
int newSize = getIoArrayImplicitSize(symbolNode->getType().getQualifier());
if (newSize > 0)
symbolNode->getWritableType().changeOuterArraySize(newSize);
}
@ -586,9 +586,9 @@ void TParseContext::handleIoResizeArrayAccess(const TSourceLoc& /*loc*/, TInterm
// Types without an array size will be given one.
// Types already having a size that is wrong will get an error.
//
void TParseContext::checkIoArraysConsistency(const TSourceLoc& loc, bool tailOnly, bool isPerPrimitive)
void TParseContext::checkIoArraysConsistency(const TSourceLoc &loc, const TQualifier &qualifier, bool tailOnly)
{
int requiredSize = getIoArrayImplicitSize(isPerPrimitive);
int requiredSize = getIoArrayImplicitSize(qualifier);
if (requiredSize == 0)
return;
@ -603,9 +603,15 @@ void TParseContext::checkIoArraysConsistency(const TSourceLoc& loc, bool tailOnl
feature = "vertices";
#ifdef NV_EXTENSIONS
else if (language == EShLangMeshNV) {
feature = isPerPrimitive ? "max_primitives" : "max_vertices";
}
else if (language == EShLangMeshNV) {
if (qualifier.builtIn == EbvPrimitiveIndicesNV) {
TLayoutGeometry outPrimitive = intermediate.getOutputPrimitive();
TString featureString = "max_primitives*";
featureString += TQualifier::getGeometryString(outPrimitive);
feature = featureString.c_str();
} else
feature = qualifier.isPerPrimitive() ? "max_primitives" : "max_vertices";
}
#endif
else
feature = "unknown";
@ -619,21 +625,24 @@ void TParseContext::checkIoArraysConsistency(const TSourceLoc& loc, bool tailOnl
checkIoArrayConsistency(loc, requiredSize, feature, ioArraySymbolResizeList[i]->getWritableType(), ioArraySymbolResizeList[i]->getName());
}
int TParseContext::getIoArrayImplicitSize(bool isPerPrimitive) const
int TParseContext::getIoArrayImplicitSize(const TQualifier& qualifier) const
{
unsigned int maxVertices = intermediate.getVertices() != TQualifier::layoutNotSet ? intermediate.getVertices() : 0;
if (language == EShLangGeometry)
return TQualifier::mapGeometryToSize(intermediate.getInputPrimitive());
else if (language == EShLangTessControl)
return intermediate.getVertices() != TQualifier::layoutNotSet ? intermediate.getVertices() : 0;
return maxVertices;
#ifdef NV_EXTENSIONS
else if (language == EShLangFragment)
return 3; //Number of vertices for Fragment shader is always three.
else if (language == EShLangMeshNV) {
if (isPerPrimitive) {
return intermediate.getPrimitives() != TQualifier::layoutNotSet ? intermediate.getPrimitives() : 0;
} else {
return intermediate.getVertices() != TQualifier::layoutNotSet ? intermediate.getVertices() : 0;
}
unsigned int maxPrimitives = intermediate.getPrimitives() != TQualifier::layoutNotSet ? intermediate.getPrimitives() : 0;
if (qualifier.builtIn == EbvPrimitiveIndicesNV)
return maxPrimitives * TQualifier::mapGeometryToSize(intermediate.getOutputPrimitive());
else if (qualifier.isPerPrimitive())
return maxPrimitives;
else
return maxVertices;
}
#endif
@ -1386,7 +1395,7 @@ TIntermTyped* TParseContext::handleLengthMethod(const TSourceLoc& loc, TFunction
#endif
)
{
length = getIoArrayImplicitSize(type.getQualifier().isPerPrimitive());
length = getIoArrayImplicitSize(type.getQualifier());
}
}
if (length == 0) {
@ -3730,7 +3739,7 @@ void TParseContext::declareArray(const TSourceLoc& loc, const TString& identifie
if (! symbolTable.atBuiltInLevel()) {
if (isIoResizeArray(type)) {
ioArraySymbolResizeList.push_back(symbol);
checkIoArraysConsistency(loc, true, type.getQualifier().isPerPrimitive());
checkIoArraysConsistency(loc, symbol->getType().getQualifier(), true);
} else
fixIoArraySize(loc, symbol->getWritableType());
}
@ -3783,7 +3792,7 @@ void TParseContext::declareArray(const TSourceLoc& loc, const TString& identifie
existingType.updateArraySizes(type);
if (isIoResizeArray(type))
checkIoArraysConsistency(loc, false, type.getQualifier().isPerPrimitive());
checkIoArraysConsistency(loc, symbol->getType().getQualifier(), true);
}
// Policy and error check for needing a runtime sized array.
@ -3939,6 +3948,7 @@ TSymbol* TParseContext::redeclareBuiltinVariable(const TSourceLoc& loc, const TS
#ifdef NV_EXTENSIONS
identifier == "gl_SampleMask" ||
identifier == "gl_Layer" ||
identifier == "gl_PrimitiveIndicesNV" ||
#endif
identifier == "gl_TexCoord") {
@ -4018,7 +4028,11 @@ TSymbol* TParseContext::redeclareBuiltinVariable(const TSourceLoc& loc, const TS
error(loc, "all redeclarations must use the same depth layout on", "redeclaration", symbol->getName().c_str());
}
}
else if (identifier == "gl_FragStencilRefARB") {
else if (
#ifdef NV_EXTENSIONS
identifier == "gl_PrimitiveIndicesNV" ||
#endif
identifier == "gl_FragStencilRefARB") {
if (qualifier.hasLayout())
error(loc, "cannot apply layout qualifier to", "redeclaration", symbol->getName().c_str());
if (qualifier.storage != EvqVaryingOut)
@ -4270,7 +4284,7 @@ void TParseContext::redeclareBuiltinBlock(const TSourceLoc& loc, TTypeList& newT
// Tracking for implicit sizing of array
if (isIoResizeArray(block->getType())) {
ioArraySymbolResizeList.push_back(block);
checkIoArraysConsistency(loc, true, block->getType().getQualifier().isPerPrimitive());
checkIoArraysConsistency(loc, block->getType().getQualifier(), true);
} else if (block->getType().isArray())
fixIoArraySize(loc, block->getWritableType());
@ -7102,7 +7116,7 @@ void TParseContext::declareBlock(const TSourceLoc& loc, TTypeList& typeList, con
// fix up
if (isIoResizeArray(blockType)) {
ioArraySymbolResizeList.push_back(&variable);
checkIoArraysConsistency(loc, true, blockType.getQualifier().isPerPrimitive());
checkIoArraysConsistency(loc, blockType.getQualifier(), true);
} else
fixIoArraySize(loc, variable.getWritableType());
@ -7489,7 +7503,7 @@ void TParseContext::updateStandaloneQualifierDefaults(const TSourceLoc& loc, con
error(loc, "cannot change previously set layout value", id, "");
if (language == EShLangTessControl)
checkIoArraysConsistency(loc);
checkIoArraysConsistency(loc, publicType.qualifier);
}
#ifdef NV_EXTENSIONS
if (publicType.shaderQualifiers.primitives != TQualifier::layoutNotSet) {
@ -7526,7 +7540,7 @@ void TParseContext::updateStandaloneQualifierDefaults(const TSourceLoc& loc, con
#endif
if (intermediate.setInputPrimitive(publicType.shaderQualifiers.geometry)) {
if (language == EShLangGeometry)
checkIoArraysConsistency(loc);
checkIoArraysConsistency(loc, publicType.qualifier);
} else
error(loc, "cannot change previously set input primitive", TQualifier::getGeometryString(publicType.shaderQualifiers.geometry), "");
break;
@ -7835,3 +7849,4 @@ TIntermNode* TParseContext::addSwitch(const TSourceLoc& loc, TIntermTyped* expre
}
} // end namespace glslang

4
glslang/MachineIndependent/ParseHelper.h
View File

@ -299,8 +299,8 @@ public:
void fixIoArraySize(const TSourceLoc&, TType&);
void ioArrayCheck(const TSourceLoc&, const TType&, const TString& identifier);
void handleIoResizeArrayAccess(const TSourceLoc&, TIntermTyped* base);
void checkIoArraysConsistency(const TSourceLoc&, bool tailOnly = false, bool isPerPrimitive = false);
int getIoArrayImplicitSize(bool isPerPrimitive = false) const;
void checkIoArraysConsistency(const TSourceLoc&, const TQualifier&, bool tailOnly = false);
int getIoArrayImplicitSize(const TQualifier&) const;
void checkIoArrayConsistency(const TSourceLoc&, int requiredSize, const char* feature, TType&, const TString&);
TIntermTyped* handleBinaryMath(const TSourceLoc&, const char* str, TOperator op, TIntermTyped* left, TIntermTyped* right);