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Merge remote-tracking branch 'upstream/master'

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This commit is contained in:
Johannes van Waveren 2016-06-27 22:05:17 -05:00
commit 5a00501ad3
129 changed files with 20289 additions and 3652 deletions
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214
SPIRV/GlslangToSpv.cpp
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@ -1,5 +1,5 @@
//
//Copyright (C) 2014-2015 LunarG, Inc.
//Copyright (C) 2014-2016 LunarG, Inc.
//Copyright (C) 2015-2016 Google, Inc.
//
//All rights reserved.
@ -111,7 +111,7 @@ public:
protected:
spv::Decoration TranslateAuxiliaryStorageDecoration(const glslang::TQualifier& qualifier);
spv::BuiltIn TranslateBuiltInDecoration(glslang::TBuiltInVariable, bool member);
spv::BuiltIn TranslateBuiltInDecoration(glslang::TBuiltInVariable, bool memberDeclaration);
spv::ImageFormat TranslateImageFormat(const glslang::TType& type);
spv::Id createSpvVariable(const glslang::TIntermSymbol*);
spv::Id getSampledType(const glslang::TSampler&);
@ -124,7 +124,7 @@ protected:
int getArrayStride(const glslang::TType& arrayType, glslang::TLayoutPacking, glslang::TLayoutMatrix);
int getMatrixStride(const glslang::TType& matrixType, glslang::TLayoutPacking, glslang::TLayoutMatrix);
void updateMemberOffset(const glslang::TType& structType, const glslang::TType& memberType, int& currentOffset, int& nextOffset, glslang::TLayoutPacking, glslang::TLayoutMatrix);
void declareClipCullCapability(const glslang::TTypeList& members, int member);
void declareUseOfStructMember(const glslang::TTypeList& members, int glslangMember);
bool isShaderEntrypoint(const glslang::TIntermAggregate* node);
void makeFunctions(const glslang::TIntermSequence&);
@ -229,16 +229,18 @@ spv::StorageClass TranslateStorageClass(const glslang::TType& type)
return spv::StorageClassInput;
else if (type.getQualifier().isPipeOutput())
return spv::StorageClassOutput;
else if (type.getBasicType() == glslang::EbtSampler)
return spv::StorageClassUniformConstant;
else if (type.getBasicType() == glslang::EbtAtomicUint)
return spv::StorageClassAtomicCounter;
else if (type.getQualifier().isUniformOrBuffer()) {
if (type.getQualifier().layoutPushConstant)
return spv::StorageClassPushConstant;
if (type.getBasicType() == glslang::EbtBlock)
return spv::StorageClassUniform;
else if (type.getBasicType() == glslang::EbtAtomicUint)
return spv::StorageClassAtomicCounter;
else
return spv::StorageClassUniformConstant;
// TODO: how are we distuingishing between default and non-default non-writable uniforms? Do default uniforms even exist?
// TODO: how are we distinguishing between default and non-default non-writable uniforms? Do default uniforms even exist?
} else {
switch (type.getQualifier().storage) {
case glslang::EvqShared: return spv::StorageClassWorkgroup; break;
@ -403,21 +405,28 @@ spv::Decoration TranslateNoContractionDecoration(const glslang::TQualifier& qual
return (spv::Decoration)spv::BadValue;
}
// Translate glslang built-in variable to SPIR-V built in decoration.
spv::BuiltIn TGlslangToSpvTraverser::TranslateBuiltInDecoration(glslang::TBuiltInVariable builtIn, bool member)
// Translate a glslang built-in variable to a SPIR-V built in decoration. Also generate
// associated capabilities when required. For some built-in variables, a capability
// is generated only when using the variable in an executable instruction, but not when
// just declaring a struct member variable with it. This is true for PointSize,
// ClipDistance, and CullDistance.
spv::BuiltIn TGlslangToSpvTraverser::TranslateBuiltInDecoration(glslang::TBuiltInVariable builtIn, bool memberDeclaration)
{
switch (builtIn) {
case glslang::EbvPointSize:
switch (glslangIntermediate->getStage()) {
case EShLangGeometry:
builder.addCapability(spv::CapabilityGeometryPointSize);
break;
case EShLangTessControl:
case EShLangTessEvaluation:
builder.addCapability(spv::CapabilityTessellationPointSize);
break;
default:
break;
// Defer adding the capability until the built-in is actually used.
if (!memberDeclaration) {
switch (glslangIntermediate->getStage()) {
case EShLangGeometry:
builder.addCapability(spv::CapabilityGeometryPointSize);
break;
case EShLangTessControl:
case EShLangTessEvaluation:
builder.addCapability(spv::CapabilityTessellationPointSize);
break;
default:
break;
}
}
return spv::BuiltInPointSize;
@ -428,13 +437,13 @@ spv::BuiltIn TGlslangToSpvTraverser::TranslateBuiltInDecoration(glslang::TBuiltI
// use needed is to trigger the capability.
//
case glslang::EbvClipDistance:
if (! member)
builder.addCapability(spv::CapabilityClipDistance);
if (!memberDeclaration)
builder.addCapability(spv::CapabilityClipDistance);
return spv::BuiltInClipDistance;
case glslang::EbvCullDistance:
if (! member)
builder.addCapability(spv::CapabilityCullDistance);
if (!memberDeclaration)
builder.addCapability(spv::CapabilityCullDistance);
return spv::BuiltInCullDistance;
case glslang::EbvViewportIndex:
@ -636,9 +645,9 @@ bool HasNonLayoutQualifiers(const glslang::TQualifier& qualifier)
{
// This should list qualifiers that simultaneous satisfy:
// - struct members can inherit from a struct declaration
// - effect decorations on the struct members (note smooth does not, and expecting something like volatile to effect the whole object)
// - affect decorations on the struct members (note smooth does not, and expecting something like volatile to effect the whole object)
// - are not part of the offset/st430/etc or row/column-major layout
return qualifier.invariant || qualifier.nopersp || qualifier.flat || qualifier.centroid || qualifier.patch || qualifier.sample || qualifier.hasLocation();
return qualifier.invariant || qualifier.hasLocation();
}
//
@ -925,30 +934,34 @@ bool TGlslangToSpvTraverser::visitBinary(glslang::TVisit /* visit */, glslang::T
// Add the next element in the chain
int index = node->getRight()->getAsConstantUnion()->getConstArray()[0].getIConst();
if (node->getLeft()->getBasicType() == glslang::EbtBlock && node->getOp() == glslang::EOpIndexDirectStruct) {
// This may be, e.g., an anonymous block-member selection, which generally need
// index remapping due to hidden members in anonymous blocks.
std::vector<int>& remapper = memberRemapper[node->getLeft()->getType().getStruct()];
assert(remapper.size() > 0);
index = remapper[index];
}
const int glslangIndex = node->getRight()->getAsConstantUnion()->getConstArray()[0].getIConst();
if (! node->getLeft()->getType().isArray() &&
node->getLeft()->getType().isVector() &&
node->getOp() == glslang::EOpIndexDirect) {
// This is essentially a hard-coded vector swizzle of size 1,
// so short circuit the access-chain stuff with a swizzle.
std::vector<unsigned> swizzle;
swizzle.push_back(node->getRight()->getAsConstantUnion()->getConstArray()[0].getIConst());
swizzle.push_back(glslangIndex);
builder.accessChainPushSwizzle(swizzle, convertGlslangToSpvType(node->getLeft()->getType()));
} else {
// normal case for indexing array or structure or block
builder.accessChainPush(builder.makeIntConstant(index));
int spvIndex = glslangIndex;
if (node->getLeft()->getBasicType() == glslang::EbtBlock &&
node->getOp() == glslang::EOpIndexDirectStruct)
{
// This may be, e.g., an anonymous block-member selection, which generally need
// index remapping due to hidden members in anonymous blocks.
std::vector<int>& remapper = memberRemapper[node->getLeft()->getType().getStruct()];
assert(remapper.size() > 0);
spvIndex = remapper[glslangIndex];
}
// Add capabilities here for accessing clip/cull distance
// normal case for indexing array or structure or block
builder.accessChainPush(builder.makeIntConstant(spvIndex));
// Add capabilities here for accessing PointSize and clip/cull distance.
// We have deferred generation of associated capabilities until now.
if (node->getLeft()->getType().isStruct() && ! node->getLeft()->getType().isArray())
declareClipCullCapability(*node->getLeft()->getType().getStruct(), index);
declareUseOfStructMember(*(node->getLeft()->getType().getStruct()), glslangIndex);
}
}
return false;
@ -1394,6 +1407,10 @@ bool TGlslangToSpvTraverser::visitAggregate(glslang::TVisit visit, glslang::TInt
case glslang::EOpMemoryBarrierImage:
case glslang::EOpMemoryBarrierShared:
case glslang::EOpGroupMemoryBarrier:
case glslang::EOpAllMemoryBarrierWithGroupSync:
case glslang::EOpGroupMemoryBarrierWithGroupSync:
case glslang::EOpWorkgroupMemoryBarrier:
case glslang::EOpWorkgroupMemoryBarrierWithGroupSync:
noReturnValue = true;
// These all have 0 operands and will naturally finish up in the code below for 0 operands
break;
@ -1902,8 +1919,10 @@ spv::Id TGlslangToSpvTraverser::convertGlslangToSpvType(const glslang::TType& ty
addMemberDecoration(spvType, member, TranslatePrecisionDecoration(glslangType));
// Add interpolation and auxiliary storage decorations only to top-level members of Input and Output storage classes
if (type.getQualifier().storage == glslang::EvqVaryingIn || type.getQualifier().storage == glslang::EvqVaryingOut) {
addMemberDecoration(spvType, member, TranslateInterpolationDecoration(subQualifier));
addMemberDecoration(spvType, member, TranslateAuxiliaryStorageDecoration(subQualifier));
if (type.getBasicType() == glslang::EbtBlock) {
addMemberDecoration(spvType, member, TranslateInterpolationDecoration(subQualifier));
addMemberDecoration(spvType, member, TranslateAuxiliaryStorageDecoration(subQualifier));
}
}
addMemberDecoration(spvType, member, TranslateInvariantDecoration(subQualifier));
@ -2205,12 +2224,23 @@ void TGlslangToSpvTraverser::updateMemberOffset(const glslang::TType& /*structTy
nextOffset = currentOffset + memberSize;
}
void TGlslangToSpvTraverser::declareClipCullCapability(const glslang::TTypeList& members, int member)
void TGlslangToSpvTraverser::declareUseOfStructMember(const glslang::TTypeList& members, int glslangMember)
{
if (members[member].type->getQualifier().builtIn == glslang::EbvClipDistance)
builder.addCapability(spv::CapabilityClipDistance);
if (members[member].type->getQualifier().builtIn == glslang::EbvCullDistance)
builder.addCapability(spv::CapabilityCullDistance);
const glslang::TBuiltInVariable glslangBuiltIn = members[glslangMember].type->getQualifier().builtIn;
switch (glslangBuiltIn)
{
case glslang::EbvClipDistance:
case glslang::EbvCullDistance:
case glslang::EbvPointSize:
// Generate the associated capability. Delegate to TranslateBuiltInDecoration.
// Alternately, we could just call this for any glslang built-in, since the
// capability already guards against duplicates.
TranslateBuiltInDecoration(glslangBuiltIn, false);
break;
default:
// Capabilities were already generated when the struct was declared.
break;
}
}
bool TGlslangToSpvTraverser::isShaderEntrypoint(const glslang::TIntermAggregate* node)
@ -2250,7 +2280,9 @@ void TGlslangToSpvTraverser::makeFunctions(const glslang::TIntermSequence& glslF
for (int p = 0; p < (int)parameters.size(); ++p) {
const glslang::TType& paramType = parameters[p]->getAsTyped()->getType();
spv::Id typeId = convertGlslangToSpvType(paramType);
if (paramType.getQualifier().storage != glslang::EvqConstReadOnly)
if (paramType.isOpaque())
typeId = builder.makePointer(TranslateStorageClass(paramType), typeId);
else if (paramType.getQualifier().storage != glslang::EvqConstReadOnly)
typeId = builder.makePointer(spv::StorageClassFunction, typeId);
else
constReadOnlyParameters.insert(parameters[p]->getAsSymbolNode()->getId());
@ -2560,6 +2592,13 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
bias = true;
}
// See if the sampler param should really be just the SPV image part
if (cracked.fetch) {
// a fetch needs to have the image extracted first
if (builder.isSampledImage(params.sampler))
params.sampler = builder.createUnaryOp(spv::OpImage, builder.getImageType(params.sampler), params.sampler);
}
// set the rest of the arguments
params.coords = arguments[1];
@ -2575,14 +2614,16 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
++extraArgs;
} else if (sampler.shadow) {
std::vector<spv::Id> indexes;
int comp;
int dRefComp;
if (cracked.proj)
comp = 2; // "The resulting 3rd component of P in the shadow forms is used as Dref"
dRefComp = 2; // "The resulting 3rd component of P in the shadow forms is used as Dref"
else
comp = builder.getNumComponents(params.coords) - 1;
indexes.push_back(comp);
dRefComp = builder.getNumComponents(params.coords) - 1;
indexes.push_back(dRefComp);
params.Dref = builder.createCompositeExtract(params.coords, builder.getScalarTypeId(builder.getTypeId(params.coords)), indexes);
}
// lod
if (cracked.lod) {
params.lod = arguments[2];
++extraArgs;
@ -2590,15 +2631,21 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
// we need to invent the default lod for an explicit lod instruction for a non-fragment stage
noImplicitLod = true;
}
// multisample
if (sampler.ms) {
params.sample = arguments[2]; // For MS, "sample" should be specified
++extraArgs;
}
// gradient
if (cracked.grad) {
params.gradX = arguments[2 + extraArgs];
params.gradY = arguments[3 + extraArgs];
extraArgs += 2;
}
// offset and offsets
if (cracked.offset) {
params.offset = arguments[2 + extraArgs];
++extraArgs;
@ -2606,25 +2653,57 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
params.offsets = arguments[2 + extraArgs];
++extraArgs;
}
// lod clamp
if (cracked.lodClamp) {
params.lodClamp = arguments[2 + extraArgs];
++extraArgs;
}
// sparse
if (sparse) {
params.texelOut = arguments[2 + extraArgs];
++extraArgs;
}
// bias
if (bias) {
params.bias = arguments[2 + extraArgs];
++extraArgs;
}
// gather component
if (cracked.gather && ! sampler.shadow) {
// default component is 0, if missing, otherwise an argument
if (2 + extraArgs < (int)arguments.size()) {
params.comp = arguments[2 + extraArgs];
params.component = arguments[2 + extraArgs];
++extraArgs;
} else {
params.comp = builder.makeIntConstant(0);
params.component = builder.makeIntConstant(0);
}
}
// projective component (might not to move)
// GLSL: "The texture coordinates consumed from P, not including the last component of P,
// are divided by the last component of P."
// SPIR-V: "... (u [, v] [, w], q)... It may be a vector larger than needed, but all
// unused components will appear after all used components."
if (cracked.proj) {
int projSourceComp = builder.getNumComponents(params.coords) - 1;
int projTargetComp;
switch (sampler.dim) {
case glslang::Esd1D: projTargetComp = 1; break;
case glslang::Esd2D: projTargetComp = 2; break;
case glslang::EsdRect: projTargetComp = 2; break;
default: projTargetComp = projSourceComp; break;
}
// copy the projective coordinate if we have to
if (projTargetComp != projSourceComp) {
spv::Id projComp = builder.createCompositeExtract(params.coords,
builder.getScalarTypeId(builder.getTypeId(params.coords)),
projSourceComp);
params.coords = builder.createCompositeInsert(projComp, params.coords,
builder.getTypeId(params.coords), projTargetComp);
}
}
@ -2659,8 +2738,8 @@ spv::Id TGlslangToSpvTraverser::handleUserFunctionCall(const glslang::TIntermAgg
builder.clearAccessChain();
glslangArgs[a]->traverse(this);
argTypes.push_back(&paramType);
// keep outputs as and samplers l-values, evaluate input-only as r-values
if (qualifiers[a] != glslang::EvqConstReadOnly || paramType.getBasicType() == glslang::EbtSampler) {
// keep outputs as and opaque objects l-values, evaluate input-only as r-values
if (qualifiers[a] != glslang::EvqConstReadOnly || paramType.isOpaque()) {
// save l-value
lValues.push_back(builder.getAccessChain());
} else {
@ -2679,7 +2758,7 @@ spv::Id TGlslangToSpvTraverser::handleUserFunctionCall(const glslang::TIntermAgg
for (int a = 0; a < (int)glslangArgs.size(); ++a) {
const glslang::TType& paramType = glslangArgs[a]->getAsTyped()->getType();
spv::Id arg;
if (paramType.getBasicType() == glslang::EbtSampler) {
if (paramType.isOpaque()) {
builder.setAccessChain(lValues[lValueCount]);
arg = builder.accessChainGetLValue();
++lValueCount;
@ -3001,7 +3080,7 @@ spv::Id TGlslangToSpvTraverser::createBinaryMatrixOperation(spv::Op op, spv::Dec
return builder.setPrecision(result, precision);
}
// Handle component-wise +, -, *, and / for all combinations of type.
// Handle component-wise +, -, *, %, and / for all combinations of type.
// The result type of all of them is the same type as the (a) matrix operand.
// The algorithm is to:
// - break the matrix(es) into vectors
@ -3012,6 +3091,7 @@ spv::Id TGlslangToSpvTraverser::createBinaryMatrixOperation(spv::Op op, spv::Dec
case spv::OpFAdd:
case spv::OpFSub:
case spv::OpFDiv:
case spv::OpFMod:
case spv::OpFMul:
{
// one time set up...
@ -3178,6 +3258,9 @@ spv::Id TGlslangToSpvTraverser::createUnaryOperation(glslang::TOperator op, spv:
case glslang::EOpIsInf:
unaryOp = spv::OpIsInf;
break;
case glslang::EOpIsFinite:
unaryOp = spv::OpIsFinite;
break;
case glslang::EOpFloatBitsToInt:
case glslang::EOpFloatBitsToUint:
@ -3889,8 +3972,6 @@ spv::Id TGlslangToSpvTraverser::createNoArgOperation(glslang::TOperator op)
builder.createNoResultOp(spv::OpEndPrimitive);
return 0;
case glslang::EOpBarrier:
if (glslangIntermediate->getProfile() != EEsProfile)
builder.createMemoryBarrier(spv::ScopeDevice, spv::MemorySemanticsAllMemory);
builder.createControlBarrier(spv::ScopeDevice, spv::ScopeDevice, spv::MemorySemanticsMaskNone);
return 0;
case glslang::EOpMemoryBarrier:
@ -3911,6 +3992,21 @@ spv::Id TGlslangToSpvTraverser::createNoArgOperation(glslang::TOperator op)
case glslang::EOpGroupMemoryBarrier:
builder.createMemoryBarrier(spv::ScopeDevice, spv::MemorySemanticsCrossWorkgroupMemoryMask);
return 0;
case glslang::EOpAllMemoryBarrierWithGroupSync:
// Control barrier with non-"None" semantic is also a memory barrier.
builder.createControlBarrier(spv::ScopeDevice, spv::ScopeDevice, spv::MemorySemanticsAllMemory);
return 0;
case glslang::EOpGroupMemoryBarrierWithGroupSync:
// Control barrier with non-"None" semantic is also a memory barrier.
builder.createControlBarrier(spv::ScopeDevice, spv::ScopeDevice, spv::MemorySemanticsCrossWorkgroupMemoryMask);
return 0;
case glslang::EOpWorkgroupMemoryBarrier:
builder.createMemoryBarrier(spv::ScopeWorkgroup, spv::MemorySemanticsWorkgroupMemoryMask);
return 0;
case glslang::EOpWorkgroupMemoryBarrierWithGroupSync:
// Control barrier with non-"None" semantic is also a memory barrier.
builder.createControlBarrier(spv::ScopeWorkgroup, spv::ScopeWorkgroup, spv::MemorySemanticsWorkgroupMemoryMask);
return 0;
default:
logger->missingFunctionality("unknown operation with no arguments");
return 0;
@ -4044,7 +4140,7 @@ spv::Id TGlslangToSpvTraverser::createSpvConstant(const glslang::TIntermTyped& n
// We now know we have a specialization constant to build
// gl_WorkgroupSize is a special case until the front-end handles hierarchical specialization constants,
// gl_WorkGroupSize is a special case until the front-end handles hierarchical specialization constants,
// even then, it's specialization ids are handled by special case syntax in GLSL: layout(local_size_x = ...
if (node.getType().getQualifier().builtIn == glslang::EbvWorkGroupSize) {
std::vector<spv::Id> dimConstId;