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Commit cc56e1aa by Shahbaz Youssefi Committed by Commit Bot
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Vulkan: Remove special output of structs and keep them in AST

The code that separated out declaration of nameless structs from uniform variable declarations is generalized to separate out declaration of all structs from uniform variable declarations. As a result, a pass that outputs the struct types at the top of the shader is no longer necessary. The struct declarations are kept in the AST to be output to GLSL as they normally would when not used in conjunction with uniform variables. After this change, the Vulkan and Metal translators no longer intermix transformations and code generation; transformations are done first entirely in AST, and code generation is done at the end. Bug: angleproject:2461 Bug: angleproject:4889 Change-Id: Ieb4d3f7091845e50c3dc399603ab01182692521d Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2818153 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: 's avatarJamie Madill <jmadill@chromium.org> Reviewed-by: 's avatarTim Van Patten <timvp@google.com>
parent 18c6d628
Showing with 48 additions and 98 deletions
src/compiler.gni
......@@ -318,8 +318,6 @@ angle_translator_lib_vulkan_sources = [
"src/compiler/translator/tree_ops/vulkan/FlagSamplersWithTexelFetch.h",
"src/compiler/translator/tree_ops/vulkan/MonomorphizeUnsupportedFunctionsInVulkanGLSL.cpp",
"src/compiler/translator/tree_ops/vulkan/MonomorphizeUnsupportedFunctionsInVulkanGLSL.h",
"src/compiler/translator/tree_ops/vulkan/NameEmbeddedUniformStructs.cpp",
"src/compiler/translator/tree_ops/vulkan/NameEmbeddedUniformStructs.h",
"src/compiler/translator/tree_ops/vulkan/RemoveAtomicCounterBuiltins.cpp",
"src/compiler/translator/tree_ops/vulkan/RemoveAtomicCounterBuiltins.h",
"src/compiler/translator/tree_ops/vulkan/RemoveInactiveInterfaceVariables.cpp",
......@@ -340,6 +338,8 @@ angle_translator_lib_vulkan_sources = [
"src/compiler/translator/tree_ops/vulkan/RewriteR32fImages.h",
"src/compiler/translator/tree_ops/vulkan/RewriteStructSamplers.cpp",
"src/compiler/translator/tree_ops/vulkan/RewriteStructSamplers.h",
"src/compiler/translator/tree_ops/vulkan/SeparateStructFromUniformDeclarations.cpp",
"src/compiler/translator/tree_ops/vulkan/SeparateStructFromUniformDeclarations.h",
]
if (is_android) {
angle_translator_sources += [
......
src/compiler/translator/TranslatorMetal.cpp
......@@ -181,14 +181,10 @@ bool TranslatorMetal::translate(TIntermBlock *root,
{
TInfoSinkBase sink;
TOutputVulkanGLSL outputGLSL(sink, getArrayIndexClampingStrategy(), getHashFunction(),
getNameMap(), &getSymbolTable(), getShaderType(),
getShaderVersion(), getOutputType(), false, true, compileOptions);
SpecConstMetal specConst(&getSymbolTable(), compileOptions, getShaderType());
DriverUniformMetal driverUniforms;
if (!TranslatorVulkan::translateImpl(sink, root, compileOptions, perfDiagnostics, &specConst,
&driverUniforms, &outputGLSL))
&driverUniforms))
{
return false;
}
......@@ -244,6 +240,9 @@ bool TranslatorMetal::translate(TIntermBlock *root,
}
// Write translated shader.
TOutputVulkanGLSL outputGLSL(sink, getArrayIndexClampingStrategy(), getHashFunction(),
getNameMap(), &getSymbolTable(), getShaderType(),
getShaderVersion(), getOutputType(), false, true, compileOptions);
root->traverse(&outputGLSL);
return compileToSpirv(sink);
......
src/compiler/translator/TranslatorVulkan.cpp
......@@ -22,7 +22,6 @@
#include "compiler/translator/glslang_wrapper.h"
#include "compiler/translator/tree_ops/vulkan/FlagSamplersWithTexelFetch.h"
#include "compiler/translator/tree_ops/vulkan/MonomorphizeUnsupportedFunctionsInVulkanGLSL.h"
#include "compiler/translator/tree_ops/vulkan/NameEmbeddedUniformStructs.h"
#include "compiler/translator/tree_ops/vulkan/RemoveAtomicCounterBuiltins.h"
#include "compiler/translator/tree_ops/vulkan/RemoveInactiveInterfaceVariables.h"
#include "compiler/translator/tree_ops/vulkan/ReplaceForShaderFramebufferFetch.h"
......@@ -33,6 +32,7 @@
#include "compiler/translator/tree_ops/vulkan/RewriteInterpolateAtOffset.h"
#include "compiler/translator/tree_ops/vulkan/RewriteR32fImages.h"
#include "compiler/translator/tree_ops/vulkan/RewriteStructSamplers.h"
#include "compiler/translator/tree_ops/vulkan/SeparateStructFromUniformDeclarations.h"
#include "compiler/translator/tree_util/BuiltIn.h"
#include "compiler/translator/tree_util/DriverUniform.h"
#include "compiler/translator/tree_util/FindFunction.h"
......@@ -62,53 +62,6 @@ constexpr gl::ShaderMap<const char *> kDefaultUniformNames = {
{gl::ShaderType::Compute, vk::kDefaultUniformsNameCS},
};
// This traverses nodes, find the struct ones and add their declarations to the sink. It also
// removes the nodes from the tree as it processes them.
class DeclareStructTypesTraverser : public TIntermTraverser
{
public:
explicit DeclareStructTypesTraverser(TOutputVulkanGLSL *outputVulkanGLSL)
: TIntermTraverser(true, false, false), mOutputVulkanGLSL(outputVulkanGLSL)
{}
bool visitDeclaration(Visit visit, TIntermDeclaration *node) override
{
ASSERT(visit == PreVisit);
if (!mInGlobalScope)
{
return false;
}
const TIntermSequence &sequence = *(node->getSequence());
TIntermTyped *declarator = sequence.front()->getAsTyped();
const TType &type = declarator->getType();
if (type.isStructSpecifier())
{
const TStructure *structure = type.getStruct();
// Embedded structs should be parsed away by now.
ASSERT(structure->symbolType() != SymbolType::Empty);
mOutputVulkanGLSL->writeStructType(structure);
TIntermSymbol *symbolNode = declarator->getAsSymbolNode();
if (symbolNode && symbolNode->variable().symbolType() == SymbolType::Empty)
{
// Remove the struct specifier declaration from the tree so it isn't parsed again.
TIntermSequence emptyReplacement;
mMultiReplacements.emplace_back(getParentNode()->getAsBlock(), node,
std::move(emptyReplacement));
}
}
return false;
}
private:
TOutputVulkanGLSL *mOutputVulkanGLSL;
};
bool IsDefaultUniform(const TType &type)
{
return type.getQualifier() == EvqUniform && type.getInterfaceBlock() == nullptr &&
......@@ -816,8 +769,7 @@ bool TranslatorVulkan::translateImpl(TInfoSinkBase &sink,
ShCompileOptions compileOptions,
PerformanceDiagnostics * /*perfDiagnostics*/,
SpecConst *specConst,
DriverUniform *driverUniforms,
TOutputVulkanGLSL *outputGLSL)
DriverUniform *driverUniforms)
{
if (getShaderType() == GL_VERTEX_SHADER)
{
......@@ -887,7 +839,7 @@ bool TranslatorVulkan::translateImpl(TInfoSinkBase &sink,
if (aggregateTypesUsedForUniforms > 0)
{
if (!NameEmbeddedStructUniforms(this, root, &getSymbolTable()))
if (!SeparateStructFromUniformDeclarations(this, root, &getSymbolTable()))
{
return false;
}
......@@ -899,14 +851,6 @@ bool TranslatorVulkan::translateImpl(TInfoSinkBase &sink,
return false;
}
defaultUniformCount -= removedUniformsCount;
// We must declare the struct types before using them.
DeclareStructTypesTraverser structTypesTraverser(outputGLSL);
root->traverse(&structTypesTraverser);
if (!structTypesTraverser.updateTree(this, root))
{
return false;
}
}
// Replace array of array of opaque uniforms with a flattened array. This is run after
......@@ -1373,18 +1317,13 @@ bool TranslatorVulkan::translate(TIntermBlock *root,
bool enablePrecision = (compileOptions & SH_IGNORE_PRECISION_QUALIFIERS) == 0;
TOutputVulkanGLSL outputGLSL(sink, getArrayIndexClampingStrategy(), getHashFunction(),
getNameMap(), &getSymbolTable(), getShaderType(),
getShaderVersion(), getOutputType(), precisionEmulation,
enablePrecision, compileOptions);
SpecConst specConst(&getSymbolTable(), compileOptions, getShaderType());
if ((compileOptions & SH_USE_SPECIALIZATION_CONSTANT) != 0)
{
DriverUniform driverUniforms;
if (!translateImpl(sink, root, compileOptions, perfDiagnostics, &specConst, &driverUniforms,
&outputGLSL))
if (!translateImpl(sink, root, compileOptions, perfDiagnostics, &specConst,
&driverUniforms))
{
return false;
}
......@@ -1393,13 +1332,17 @@ bool TranslatorVulkan::translate(TIntermBlock *root,
{
DriverUniformExtended driverUniformsExt;
if (!translateImpl(sink, root, compileOptions, perfDiagnostics, &specConst,
&driverUniformsExt, &outputGLSL))
&driverUniformsExt))
{
return false;
}
}
// Write translated shader.
TOutputVulkanGLSL outputGLSL(sink, getArrayIndexClampingStrategy(), getHashFunction(),
getNameMap(), &getSymbolTable(), getShaderType(),
getShaderVersion(), getOutputType(), precisionEmulation,
enablePrecision, compileOptions);
root->traverse(&outputGLSL);
return compileToSpirv(sink);
......
src/compiler/translator/TranslatorVulkan.h
......@@ -39,8 +39,7 @@ class TranslatorVulkan : public TCompiler
ShCompileOptions compileOptions,
PerformanceDiagnostics *perfDiagnostics,
SpecConst *specConst,
DriverUniform *driverUniforms,
TOutputVulkanGLSL *outputGLSL);
DriverUniform *driverUniforms);
// Give subclass such as TranslatorMetal a chance to do depth transform before
// TranslatorVulkan apply its own transform.
......
src/compiler/translator/tree_ops/vulkan/NameEmbeddedUniformStructs.cpp → src/compiler/translator/tree_ops/vulkan/SeparateStructFromUniformDeclarations.cpp
......@@ -3,10 +3,10 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// NameEmbeddedUniformStructs: Gives nameless uniform struct internal names.
// SeparateStructFromUniformDeclarations: Separate struct declarations from uniform declarations.
//
#include "compiler/translator/tree_ops/vulkan/NameEmbeddedUniformStructs.h"
#include "compiler/translator/tree_ops/vulkan/SeparateStructFromUniformDeclarations.h"
#include "compiler/translator/SymbolTable.h"
#include "compiler/translator/tree_util/IntermTraverse.h"
......@@ -41,12 +41,7 @@ class Traverser : public TIntermTraverser
if (type.isStructSpecifier() && type.getQualifier() == EvqUniform)
{
const TStructure *structure = type.getStruct();
if (structure->symbolType() == SymbolType::Empty)
{
doReplacement(decl, declarator, structure);
}
doReplacement(decl, declarator, type.getStruct());
}
return false;
......@@ -67,9 +62,13 @@ class Traverser : public TIntermTraverser
const TStructure *oldStructure)
{
// struct <structName> { ... };
TStructure *structure = new TStructure(mSymbolTable, kEmptyImmutableString,
&oldStructure->fields(), SymbolType::AngleInternal);
TType *namedType = new TType(structure, true);
const TStructure *structure = oldStructure;
if (oldStructure->symbolType() == SymbolType::Empty)
{
structure = new TStructure(mSymbolTable, kEmptyImmutableString, &oldStructure->fields(),
SymbolType::AngleInternal);
}
TType *namedType = new TType(structure, true);
namedType->setQualifier(EvqGlobal);
TVariable *structVariable =
......@@ -107,10 +106,12 @@ class Traverser : public TIntermTraverser
};
} // anonymous namespace
bool NameEmbeddedStructUniforms(TCompiler *compiler, TIntermBlock *root, TSymbolTable *symbolTable)
bool SeparateStructFromUniformDeclarations(TCompiler *compiler,
TIntermBlock *root,
TSymbolTable *symbolTable)
{
Traverser nameStructs(symbolTable);
root->traverse(&nameStructs);
return nameStructs.updateTree(compiler, root);
Traverser separateStructDecls(symbolTable);
root->traverse(&separateStructDecls);
return separateStructDecls.updateTree(compiler, root);
}
} // namespace sh
src/compiler/translator/tree_ops/vulkan/NameEmbeddedUniformStructs.h → src/compiler/translator/tree_ops/vulkan/SeparateStructFromUniformDeclarations.h
......@@ -3,7 +3,8 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// NameEmbeddedUniformStructs: Gives nameless uniform struct internal names.
// SeparateStructFromUniformDeclarations: Separate struct declarations from uniform declarations.
// It necessarily gives nameless uniform structs internal names.
//
// For example:
// uniform struct { int a; } uni;
......@@ -11,9 +12,16 @@
// struct s1 { int a; };
// uniform s1 uni;
//
// And:
// uniform struct S { int a; } uni;
// becomes:
// struct S { int a; };
// uniform S uni;
//
//
#ifndef COMPILER_TRANSLATOR_TREEOPS_VULKAN_NAMEEMBEDDEDUNIFORMSTRUCTS_H_
#define COMPILER_TRANSLATOR_TREEOPS_VULKAN_NAMEEMBEDDEDUNIFORMSTRUCTS_H_
#ifndef COMPILER_TRANSLATOR_TREEOPS_VULKAN_SEPARATESTRUCTFROMUNIFORMDECLARATIONS_H_
#define COMPILER_TRANSLATOR_TREEOPS_VULKAN_SEPARATESTRUCTFROMUNIFORMDECLARATIONS_H_
#include "common/angleutils.h"
......@@ -23,9 +31,9 @@ class TCompiler;
class TIntermBlock;
class TSymbolTable;
ANGLE_NO_DISCARD bool NameEmbeddedStructUniforms(TCompiler *compiler,
TIntermBlock *root,
TSymbolTable *symbolTable);
ANGLE_NO_DISCARD bool SeparateStructFromUniformDeclarations(TCompiler *compiler,
TIntermBlock *root,
TSymbolTable *symbolTable);
} // namespace sh
#endif // COMPILER_TRANSLATOR_TREEOPS_VULKAN_NAMEEMBEDDEDUNIFORMSTRUCTS_H_
#endif // COMPILER_TRANSLATOR_TREEOPS_VULKAN_SEPARATESTRUCTFROMUNIFORMDECLARATIONS_H_
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