John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 1 | //
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| 2 | //Copyright (C) 2014 LunarG, Inc.
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| 3 | //
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| 4 | //All rights reserved.
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| 5 | //
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| 6 | //Redistribution and use in source and binary forms, with or without
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| 7 | //modification, are permitted provided that the following conditions
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| 8 | //are met:
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| 9 | //
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| 10 | // Redistributions of source code must retain the above copyright
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| 11 | // notice, this list of conditions and the following disclaimer.
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| 12 | //
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| 13 | // Redistributions in binary form must reproduce the above
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| 14 | // copyright notice, this list of conditions and the following
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| 15 | // disclaimer in the documentation and/or other materials provided
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| 16 | // with the distribution.
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| 17 | //
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| 18 | // Neither the name of 3Dlabs Inc. Ltd. nor the names of its
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| 19 | // contributors may be used to endorse or promote products derived
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| 20 | // from this software without specific prior written permission.
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| 21 | //
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| 22 | //THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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| 23 | //"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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| 24 | //LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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| 25 | //FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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| 26 | //COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 27 | //INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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| 28 | //BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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| 29 | //LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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| 30 | //CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 31 | //LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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| 32 | //ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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| 33 | //POSSIBILITY OF SUCH DAMAGE.
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| 34 |
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| 35 | //
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| 36 | // Author: John Kessenich, LunarG
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| 37 | //
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| 38 | // Visit the nodes in the glslang intermediate tree representation to
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| 39 | // translate them to SPIR-V.
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| 40 | //
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| 41 |
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| 42 | #include "spirv.h"
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| 43 | #include "GlslangToSpv.h"
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| 44 | #include "SpvBuilder.h"
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| 45 | #include "GLSL450Lib.h"
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| 46 |
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| 47 | // Glslang includes
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| 48 | #include "glslang/MachineIndependent/localintermediate.h"
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| 49 | #include "glslang/MachineIndependent/SymbolTable.h"
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| 50 |
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| 51 | #include <string>
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| 52 | #include <map>
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| 53 | #include <list>
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| 54 | #include <vector>
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| 55 | #include <stack>
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| 56 | #include <fstream>
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| 57 |
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| 58 | namespace {
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| 59 |
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| 60 | const int GlslangMagic = 0x51a;
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| 61 |
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| 62 | //
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| 63 | // The main holder of information for translating glslang to SPIR-V.
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| 64 | //
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| 65 | // Derives from the AST walking base class.
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| 66 | //
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| 67 | class TGlslangToSpvTraverser : public glslang::TIntermTraverser {
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| 68 | public:
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| 69 | TGlslangToSpvTraverser(const glslang::TIntermediate*);
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| 70 | virtual ~TGlslangToSpvTraverser();
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| 71 |
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| 72 | bool visitAggregate(glslang::TVisit, glslang::TIntermAggregate*);
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| 73 | bool visitBinary(glslang::TVisit, glslang::TIntermBinary*);
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| 74 | void visitConstantUnion(glslang::TIntermConstantUnion*);
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| 75 | bool visitSelection(glslang::TVisit, glslang::TIntermSelection*);
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| 76 | bool visitSwitch(glslang::TVisit, glslang::TIntermSwitch*);
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| 77 | void visitSymbol(glslang::TIntermSymbol* symbol);
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| 78 | bool visitUnary(glslang::TVisit, glslang::TIntermUnary*);
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| 79 | bool visitLoop(glslang::TVisit, glslang::TIntermLoop*);
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| 80 | bool visitBranch(glslang::TVisit visit, glslang::TIntermBranch*);
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| 81 |
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| 82 | void dumpSpv(std::vector<unsigned int>& out) { builder.dump(out); }
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| 83 |
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| 84 | protected:
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| 85 | spv::Id createSpvVariable(const glslang::TIntermSymbol*);
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| 86 | spv::Id getSampledType(const glslang::TSampler&);
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| 87 | spv::Id convertGlslangToSpvType(const glslang::TType& type);
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| 88 |
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| 89 | bool isShaderEntrypoint(const glslang::TIntermAggregate* node);
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| 90 | void makeFunctions(const glslang::TIntermSequence&);
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| 91 | void makeGlobalInitializers(const glslang::TIntermSequence&);
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| 92 | void visitFunctions(const glslang::TIntermSequence&);
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| 93 | void handleFunctionEntry(const glslang::TIntermAggregate* node);
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| 94 | void translateArguments(const glslang::TIntermSequence& glslangArguments, std::vector<spv::Id>& arguments);
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| 95 | spv::Id handleBuiltInFunctionCall(const glslang::TIntermAggregate*);
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| 96 | spv::Id handleUserFunctionCall(const glslang::TIntermAggregate*);
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| 97 |
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| 98 | spv::Id createBinaryOperation(glslang::TOperator op, spv::Decoration precision, spv::Id typeId, spv::Id left, spv::Id right, glslang::TBasicType typeProxy, bool reduceComparison = true);
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| 99 | spv::Id createUnaryOperation(glslang::TOperator op, spv::Decoration precision, spv::Id typeId, spv::Id operand, bool isFloat);
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| 100 | spv::Id createConversion(glslang::TOperator op, spv::Decoration precision, spv::Id destTypeId, spv::Id operand);
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| 101 | spv::Id makeSmearedConstant(spv::Id constant, int vectorSize);
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| 102 | spv::Id createMiscOperation(glslang::TOperator op, spv::Decoration precision, spv::Id typeId, std::vector<spv::Id>& operands, bool isUnsigned);
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| 103 | spv::Id createNoArgOperation(glslang::TOperator op);
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| 104 | spv::Id getSymbolId(const glslang::TIntermSymbol* node);
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| 105 | void addDecoration(spv::Id id, spv::Decoration dec);
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| 106 | void addMemberDecoration(spv::Id id, int member, spv::Decoration dec);
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| 107 | spv::Id createSpvConstant(const glslang::TType& type, const glslang::TConstUnionArray&, int& nextConst);
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| 108 |
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| 109 | spv::Function* shaderEntry;
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| 110 | int sequenceDepth;
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| 111 |
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| 112 | // There is a 1:1 mapping between a spv builder and a module; this is thread safe
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| 113 | spv::Builder builder;
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| 114 | bool inMain;
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| 115 | bool mainTerminated;
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| 116 | bool linkageOnly;
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| 117 | const glslang::TIntermediate* glslangIntermediate;
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| 118 | spv::Id stdBuiltins;
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| 119 |
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| 120 | std::map<int, spv::Id> symbolValues;
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| 121 | std::set<int> constReadOnlyParameters; // set of formal function parameters that have glslang qualifier constReadOnly, so we know they are not local function "const" that are write-once
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| 122 | std::map<std::string, spv::Function*> functionMap;
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| 123 | std::map<const glslang::TTypeList*, spv::Id> structMap;
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| 124 | std::map<const glslang::TTypeList*, std::vector<int> > memberRemapper; // for mapping glslang block indices to spv indices (e.g., due to hidden members)
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| 125 | std::stack<bool> breakForLoop; // false means break for switch
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| 126 | std::stack<glslang::TIntermTyped*> loopTerminal; // code from the last part of a for loop: for(...; ...; terminal), needed for e.g., continue };
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| 127 | };
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| 128 |
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| 129 | //
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| 130 | // Helper functions for translating glslang representations to SPIR-V enumerants.
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| 131 | //
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| 132 |
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| 133 | // Translate glslang language (stage) to SPIR-V execution model.
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| 134 | spv::ExecutionModel TranslateExecutionModel(EShLanguage stage)
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| 135 | {
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| 136 | switch (stage) {
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 137 | case EShLangVertex: return spv::ExecutionModelVertex;
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| 138 | case EShLangTessControl: return spv::ExecutionModelTessellationControl;
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| 139 | case EShLangTessEvaluation: return spv::ExecutionModelTessellationEvaluation;
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| 140 | case EShLangGeometry: return spv::ExecutionModelGeometry;
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| 141 | case EShLangFragment: return spv::ExecutionModelFragment;
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| 142 | case EShLangCompute: return spv::ExecutionModelGLCompute;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 143 | default:
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| 144 | spv::MissingFunctionality("GLSL stage");
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 145 | return spv::ExecutionModelFragment;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 146 | }
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| 147 | }
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| 148 |
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| 149 | // Translate glslang type to SPIR-V storage class.
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| 150 | spv::StorageClass TranslateStorageClass(const glslang::TType& type)
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| 151 | {
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| 152 | if (type.getQualifier().isPipeInput())
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 153 | return spv::StorageClassInput;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 154 | else if (type.getQualifier().isPipeOutput())
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 155 | return spv::StorageClassOutput;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 156 | else if (type.getQualifier().isUniformOrBuffer()) {
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| 157 | if (type.getBasicType() == glslang::EbtBlock)
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 158 | return spv::StorageClassUniform;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 159 | else
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 160 | return spv::StorageClassUniformConstant;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 161 | // TODO: how are we distuingishing between default and non-default non-writable uniforms? Do default uniforms even exist?
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| 162 | } else {
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| 163 | switch (type.getQualifier().storage) {
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 164 | case glslang::EvqShared: return spv::StorageClassWorkgroupLocal; break;
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| 165 | case glslang::EvqGlobal: return spv::StorageClassPrivateGlobal;
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| 166 | case glslang::EvqConstReadOnly: return spv::StorageClassFunction;
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| 167 | case glslang::EvqTemporary: return spv::StorageClassFunction;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 168 | default:
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| 169 | spv::MissingFunctionality("unknown glslang storage class");
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 170 | return spv::StorageClassFunction;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 171 | }
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| 172 | }
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| 173 | }
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| 174 |
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| 175 | // Translate glslang sampler type to SPIR-V dimensionality.
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 176 | spv::Dim TranslateDimensionality(const glslang::TSampler& sampler)
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 177 | {
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| 178 | switch (sampler.dim) {
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| 179 | case glslang::Esd1D: return spv::Dim1D;
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| 180 | case glslang::Esd2D: return spv::Dim2D;
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| 181 | case glslang::Esd3D: return spv::Dim3D;
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| 182 | case glslang::EsdCube: return spv::DimCube;
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| 183 | case glslang::EsdRect: return spv::DimRect;
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| 184 | case glslang::EsdBuffer: return spv::DimBuffer;
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| 185 | default:
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| 186 | spv::MissingFunctionality("unknown sampler dimension");
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| 187 | return spv::Dim2D;
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| 188 | }
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| 189 | }
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| 190 |
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| 191 | // Translate glslang type to SPIR-V precision decorations.
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| 192 | spv::Decoration TranslatePrecisionDecoration(const glslang::TType& type)
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| 193 | {
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| 194 | switch (type.getQualifier().precision) {
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 195 | case glslang::EpqLow: return spv::DecorationPrecisionLow;
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| 196 | case glslang::EpqMedium: return spv::DecorationPrecisionMedium;
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| 197 | case glslang::EpqHigh: return spv::DecorationPrecisionHigh;
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| 198 | default:
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| 199 | return spv::NoPrecision;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 200 | }
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| 201 | }
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| 202 |
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| 203 | // Translate glslang type to SPIR-V block decorations.
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| 204 | spv::Decoration TranslateBlockDecoration(const glslang::TType& type)
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| 205 | {
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| 206 | if (type.getBasicType() == glslang::EbtBlock) {
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| 207 | switch (type.getQualifier().storage) {
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 208 | case glslang::EvqUniform: return spv::DecorationBlock;
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| 209 | case glslang::EvqBuffer: return spv::DecorationBufferBlock;
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| 210 | case glslang::EvqVaryingIn: return spv::DecorationBlock;
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| 211 | case glslang::EvqVaryingOut: return spv::DecorationBlock;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 212 | default:
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| 213 | spv::MissingFunctionality("kind of block");
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| 214 | break;
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| 215 | }
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| 216 | }
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| 217 |
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 218 | return (spv::Decoration)spv::BadValue;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 219 | }
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| 220 |
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| 221 | // Translate glslang type to SPIR-V layout decorations.
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| 222 | spv::Decoration TranslateLayoutDecoration(const glslang::TType& type)
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| 223 | {
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| 224 | if (type.isMatrix()) {
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| 225 | switch (type.getQualifier().layoutMatrix) {
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| 226 | case glslang::ElmRowMajor:
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 227 | return spv::DecorationRowMajor;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 228 | default:
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 229 | return spv::DecorationColMajor;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 230 | }
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| 231 | } else {
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| 232 | switch (type.getBasicType()) {
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| 233 | default:
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 234 | return (spv::Decoration)spv::BadValue;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 235 | break;
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| 236 | case glslang::EbtBlock:
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| 237 | switch (type.getQualifier().storage) {
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| 238 | case glslang::EvqUniform:
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| 239 | case glslang::EvqBuffer:
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| 240 | switch (type.getQualifier().layoutPacking) {
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 241 | case glslang::ElpShared: return spv::DecorationGLSLShared;
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| 242 | case glslang::ElpStd140: return spv::DecorationGLSLStd140;
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| 243 | case glslang::ElpStd430: return spv::DecorationGLSLStd430;
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| 244 | case glslang::ElpPacked: return spv::DecorationGLSLPacked;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 245 | default:
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| 246 | spv::MissingFunctionality("uniform block layout");
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 247 | return spv::DecorationGLSLShared;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 248 | }
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| 249 | case glslang::EvqVaryingIn:
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| 250 | case glslang::EvqVaryingOut:
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| 251 | if (type.getQualifier().layoutPacking != glslang::ElpNone)
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| 252 | spv::MissingFunctionality("in/out block layout");
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 253 | return (spv::Decoration)spv::BadValue;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 254 | default:
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| 255 | spv::MissingFunctionality("block storage qualification");
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 256 | return (spv::Decoration)spv::BadValue;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 257 | }
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| 258 | }
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| 259 | }
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| 260 | }
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| 261 |
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| 262 | // Translate glslang type to SPIR-V interpolation decorations.
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| 263 | spv::Decoration TranslateInterpolationDecoration(const glslang::TType& type)
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| 264 | {
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| 265 | if (type.getQualifier().smooth)
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 266 | return spv::DecorationSmooth;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 267 | if (type.getQualifier().nopersp)
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 268 | return spv::DecorationNoperspective;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 269 | else if (type.getQualifier().patch)
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 270 | return spv::DecorationPatch;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 271 | else if (type.getQualifier().flat)
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 272 | return spv::DecorationFlat;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 273 | else if (type.getQualifier().centroid)
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 274 | return spv::DecorationCentroid;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 275 | else if (type.getQualifier().sample)
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 276 | return spv::DecorationSample;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 277 | else
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 278 | return (spv::Decoration)spv::BadValue;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 279 | }
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| 280 |
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| 281 | // If glslang type is invaraiant, return SPIR-V invariant decoration.
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| 282 | spv::Decoration TranslateInvariantDecoration(const glslang::TType& type)
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| 283 | {
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| 284 | if (type.getQualifier().invariant)
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 285 | return spv::DecorationInvariant;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 286 | else
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 287 | return (spv::Decoration)spv::BadValue;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 288 | }
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| 289 |
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John Kessenich | 9a33994 | 2015-04-01 20:35:23 +0000 | [diff] [blame] | 290 | // Translate glslang built-in variable to SPIR-V built in decoration.
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| 291 | spv::BuiltIn TranslateBuiltInDecoration(const glslang::TIntermSymbol& node)
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 292 | {
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John Kessenich | 9a33994 | 2015-04-01 20:35:23 +0000 | [diff] [blame] | 293 | const glslang::TString& name = node.getName();
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 294 | if (name.compare(0, 3, "gl_") != 0)
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John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 295 | return (spv::BuiltIn)spv::BadValue;
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 296 |
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John Kessenich | 9a33994 | 2015-04-01 20:35:23 +0000 | [diff] [blame] | 297 | switch (node.getQualifier().storage) {
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 298 | case glslang::EvqPosition: return spv::BuiltInPosition;
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| 299 | case glslang::EvqPointSize: return spv::BuiltInPointSize;
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| 300 | case glslang::EvqClipVertex: return spv::BuiltInClipVertex;
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| 301 | case glslang::EvqVertexId: return spv::BuiltInVertexId;
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| 302 | case glslang::EvqInstanceId: return spv::BuiltInInstanceId;
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| 303 | case glslang::EvqFragCoord: return spv::BuiltInFragCoord;
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| 304 | case glslang::EvqPointCoord: return spv::BuiltInPointCoord;
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| 305 | case glslang::EvqFace: return spv::BuiltInFrontFacing;
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| 306 | case glslang::EvqFragColor: return spv::BuiltInFragColor;
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| 307 | case glslang::EvqFragDepth: return spv::BuiltInFragDepth;
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John Kessenich | 9a33994 | 2015-04-01 20:35:23 +0000 | [diff] [blame] | 308 | default:
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John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 309 | if (name == "gl_ClipDistance")
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| 310 | return spv::BuiltInClipDistance;
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| 311 | else if (name == "gl_PrimitiveID" || name == "gl_PrimitiveIDIn")
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| 312 | return spv::BuiltInPrimitiveId;
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| 313 | else if (name == "gl_InvocationID")
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| 314 | return spv::BuiltInInvocationId;
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| 315 | else if (name == "gl_Layer")
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| 316 | return spv::BuiltInLayer;
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| 317 | else if (name == "gl_ViewportIndex")
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| 318 | return spv::BuiltInViewportIndex;
|
| 319 | else if (name == "gl_TessLevelOuter")
|
| 320 | return spv::BuiltInTessLevelOuter;
|
| 321 | else if (name == "gl_TessLevelInner")
|
| 322 | return spv::BuiltInTessLevelInner;
|
| 323 | else if (name == "gl_TessCoord")
|
| 324 | return spv::BuiltInTessCoord;
|
| 325 | else if (name == "gl_PatchVerticesIn")
|
| 326 | return spv::BuiltInPatchVertices;
|
| 327 | else if (name == "gl_SampleID")
|
| 328 | return spv::BuiltInSampleId;
|
| 329 | else if (name == "gl_SamplePosition")
|
| 330 | return spv::BuiltInSamplePosition;
|
| 331 | else if (name == "gl_SampleMask" || name == "gl_SampleMaskIn")
|
| 332 | return spv::BuiltInSampleMask;
|
| 333 |
|
| 334 | // Compute shader:
|
| 335 | else if (name == "gl_NumWorkGroups")
|
| 336 | return spv::BuiltInNumWorkgroups;
|
| 337 | else if (name == "gl_WorkGroupSize")
|
| 338 | return spv::BuiltInWorkgroupSize;
|
| 339 | else if (name == "gl_WorkGroupID")
|
| 340 | return spv::BuiltInWorkgroupId;
|
| 341 | else if (name == "gl_LocalInvocationID")
|
| 342 | return spv::BuiltInLocalInvocationId;
|
| 343 | else if (name == "gl_GlobalInvocationID")
|
| 344 | return spv::BuiltInGlobalInvocationId;
|
| 345 | else if (name == "gl_LocalInvocationIndexID")
|
| 346 | return spv::BuiltInLocalInvocationIndex;
|
John Kessenich | 9a33994 | 2015-04-01 20:35:23 +0000 | [diff] [blame] | 347 | break;
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 348 | }
|
John Kessenich | 9a33994 | 2015-04-01 20:35:23 +0000 | [diff] [blame] | 349 |
|
| 350 | return (spv::BuiltIn)spv::BadValue;
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 351 | }
|
| 352 |
|
| 353 | //
|
| 354 | // Implement the TGlslangToSpvTraverser class.
|
| 355 | //
|
| 356 |
|
| 357 | TGlslangToSpvTraverser::TGlslangToSpvTraverser(const glslang::TIntermediate* glslangIntermediate)
|
| 358 | : TIntermTraverser(true, false, true), shaderEntry(0), sequenceDepth(0),
|
| 359 | builder(GlslangMagic),
|
| 360 | inMain(false), mainTerminated(false), linkageOnly(false),
|
| 361 | glslangIntermediate(glslangIntermediate)
|
| 362 | {
|
| 363 | spv::ExecutionModel executionModel = TranslateExecutionModel(glslangIntermediate->getStage());
|
| 364 |
|
| 365 | builder.clearAccessChain();
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 366 | builder.setSource(spv::SourceLanguageGLSL, glslangIntermediate->getVersion());
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 367 | stdBuiltins = builder.import("GLSL.std.450");
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 368 | builder.setMemoryModel(spv::AddressingModelLogical, spv::MemoryModelGLSL450);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 369 | shaderEntry = builder.makeMain();
|
| 370 | builder.addEntryPoint(executionModel, shaderEntry);
|
| 371 |
|
| 372 | // Add the source extensions
|
| 373 | const std::set<std::string>& sourceExtensions = glslangIntermediate->getRequestedExtensions();
|
| 374 | for (std::set<std::string>::const_iterator it = sourceExtensions.begin(); it != sourceExtensions.end(); ++it)
|
| 375 | builder.addSourceExtension(it->c_str());
|
| 376 |
|
| 377 | // Add the top-level modes for this shader.
|
| 378 |
|
| 379 | if (glslangIntermediate->getXfbMode())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 380 | builder.addExecutionMode(shaderEntry, spv::ExecutionModeXfb);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 381 |
|
| 382 | spv::ExecutionMode mode;
|
| 383 | switch (glslangIntermediate->getStage()) {
|
| 384 | case EShLangVertex:
|
| 385 | break;
|
| 386 |
|
| 387 | case EShLangTessControl:
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 388 | builder.addExecutionMode(shaderEntry, spv::ExecutionModeOutputVertices, glslangIntermediate->getVertices());
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 389 | break;
|
| 390 |
|
| 391 | case EShLangTessEvaluation:
|
| 392 | switch (glslangIntermediate->getInputPrimitive()) {
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 393 | case glslang::ElgTriangles: mode = spv::ExecutionModeInputTriangles; break;
|
| 394 | case glslang::ElgQuads: mode = spv::ExecutionModeInputQuads; break;
|
| 395 | case glslang::ElgIsolines: mode = spv::ExecutionModeInputIsolines; break;
|
| 396 | default: mode = (spv::ExecutionMode)spv::BadValue; break;
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 397 | }
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 398 | if (mode != spv::BadValue)
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 399 | builder.addExecutionMode(shaderEntry, mode);
|
| 400 |
|
| 401 | // TODO
|
| 402 | //builder.addExecutionMode(spv::VertexSpacingMdName, glslangIntermediate->getVertexSpacing());
|
| 403 | //builder.addExecutionMode(spv::VertexOrderMdName, glslangIntermediate->getVertexOrder());
|
| 404 | //builder.addExecutionMode(spv::PointModeMdName, glslangIntermediate->getPointMode());
|
| 405 | break;
|
| 406 |
|
| 407 | case EShLangGeometry:
|
| 408 | switch (glslangIntermediate->getInputPrimitive()) {
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 409 | case glslang::ElgPoints: mode = spv::ExecutionModeInputPoints; break;
|
| 410 | case glslang::ElgLines: mode = spv::ExecutionModeInputLines; break;
|
| 411 | case glslang::ElgLinesAdjacency: mode = spv::ExecutionModeInputLinesAdjacency; break;
|
| 412 | case glslang::ElgTriangles: mode = spv::ExecutionModeInputTriangles; break;
|
| 413 | case glslang::ElgTrianglesAdjacency: mode = spv::ExecutionModeInputTrianglesAdjacency; break;
|
| 414 | default: mode = (spv::ExecutionMode)spv::BadValue; break;
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 415 | }
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 416 | if (mode != spv::BadValue)
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 417 | builder.addExecutionMode(shaderEntry, mode);
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 418 | builder.addExecutionMode(shaderEntry, spv::ExecutionModeInvocations, glslangIntermediate->getInvocations());
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 419 |
|
| 420 | switch (glslangIntermediate->getOutputPrimitive()) {
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 421 | case glslang::ElgPoints: mode = spv::ExecutionModeOutputPoints; break;
|
| 422 | case glslang::ElgLineStrip: mode = spv::ExecutionModeOutputLineStrip; break;
|
| 423 | case glslang::ElgTriangleStrip: mode = spv::ExecutionModeOutputTriangleStrip; break;
|
| 424 | default: mode = (spv::ExecutionMode)spv::BadValue; break;
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 425 | }
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 426 | if (mode != spv::BadValue)
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 427 | builder.addExecutionMode(shaderEntry, mode);
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 428 | builder.addExecutionMode(shaderEntry, spv::ExecutionModeOutputVertices, glslangIntermediate->getVertices());
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 429 | break;
|
| 430 |
|
| 431 | case EShLangFragment:
|
| 432 | if (glslangIntermediate->getPixelCenterInteger())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 433 | builder.addExecutionMode(shaderEntry, spv::ExecutionModePixelCenterInteger);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 434 | if (glslangIntermediate->getOriginUpperLeft())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 435 | builder.addExecutionMode(shaderEntry, spv::ExecutionModeOriginUpperLeft);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 436 | break;
|
| 437 |
|
| 438 | case EShLangCompute:
|
| 439 | break;
|
| 440 |
|
| 441 | default:
|
| 442 | break;
|
| 443 | }
|
| 444 |
|
| 445 | }
|
| 446 |
|
| 447 | TGlslangToSpvTraverser::~TGlslangToSpvTraverser()
|
| 448 | {
|
| 449 | if (! mainTerminated) {
|
| 450 | spv::Block* lastMainBlock = shaderEntry->getLastBlock();
|
| 451 | builder.setBuildPoint(lastMainBlock);
|
| 452 | builder.leaveFunction(true);
|
| 453 | }
|
| 454 | }
|
| 455 |
|
| 456 | //
|
| 457 | // Implement the traversal functions.
|
| 458 | //
|
| 459 | // Return true from interior nodes to have the external traversal
|
| 460 | // continue on to children. Return false if children were
|
| 461 | // already processed.
|
| 462 | //
|
| 463 |
|
| 464 | //
|
| 465 | // Symbols can turn into
|
| 466 | // - uniform/input reads
|
| 467 | // - output writes
|
| 468 | // - complex lvalue base setups: foo.bar[3].... , where we see foo and start up an access chain
|
| 469 | // - something simple that degenerates into the last bullet
|
| 470 | //
|
| 471 | void TGlslangToSpvTraverser::visitSymbol(glslang::TIntermSymbol* symbol)
|
| 472 | {
|
| 473 | // getSymbolId() will set up all the IO decorations on the first call.
|
| 474 | // Formal function parameters were mapped during makeFunctions().
|
| 475 | spv::Id id = getSymbolId(symbol);
|
| 476 |
|
| 477 | if (! linkageOnly) {
|
| 478 | // Prepare to generate code for the access
|
| 479 |
|
| 480 | // L-value chains will be computed left to right. We're on the symbol now,
|
| 481 | // which is the left-most part of the access chain, so now is "clear" time,
|
| 482 | // followed by setting the base.
|
| 483 | builder.clearAccessChain();
|
| 484 |
|
| 485 | // For now, we consider all user variables as being in memory, so they are pointers,
|
| 486 | // except for "const in" arguments to a function, which are an intermediate object.
|
| 487 | // See comments in handleUserFunctionCall().
|
| 488 | glslang::TStorageQualifier qualifier = symbol->getQualifier().storage;
|
| 489 | if (qualifier == glslang::EvqConstReadOnly && constReadOnlyParameters.find(symbol->getId()) != constReadOnlyParameters.end())
|
| 490 | builder.setAccessChainRValue(id);
|
| 491 | else
|
| 492 | builder.setAccessChainLValue(id);
|
| 493 | }
|
| 494 | }
|
| 495 |
|
| 496 | bool TGlslangToSpvTraverser::visitBinary(glslang::TVisit /* visit */, glslang::TIntermBinary* node)
|
| 497 | {
|
| 498 | // First, handle special cases
|
| 499 | switch (node->getOp()) {
|
| 500 | case glslang::EOpAssign:
|
| 501 | case glslang::EOpAddAssign:
|
| 502 | case glslang::EOpSubAssign:
|
| 503 | case glslang::EOpMulAssign:
|
| 504 | case glslang::EOpVectorTimesMatrixAssign:
|
| 505 | case glslang::EOpVectorTimesScalarAssign:
|
| 506 | case glslang::EOpMatrixTimesScalarAssign:
|
| 507 | case glslang::EOpMatrixTimesMatrixAssign:
|
| 508 | case glslang::EOpDivAssign:
|
| 509 | case glslang::EOpModAssign:
|
| 510 | case glslang::EOpAndAssign:
|
| 511 | case glslang::EOpInclusiveOrAssign:
|
| 512 | case glslang::EOpExclusiveOrAssign:
|
| 513 | case glslang::EOpLeftShiftAssign:
|
| 514 | case glslang::EOpRightShiftAssign:
|
| 515 | // A bin-op assign "a += b" means the same thing as "a = a + b"
|
| 516 | // where a is evaluated before b. For a simple assignment, GLSL
|
| 517 | // says to evaluate the left before the right. So, always, left
|
| 518 | // node then right node.
|
| 519 | {
|
| 520 | // get the left l-value, save it away
|
| 521 | builder.clearAccessChain();
|
| 522 | node->getLeft()->traverse(this);
|
| 523 | spv::Builder::AccessChain lValue = builder.getAccessChain();
|
| 524 |
|
| 525 | // evaluate the right
|
| 526 | builder.clearAccessChain();
|
| 527 | node->getRight()->traverse(this);
|
| 528 | spv::Id rValue = builder.accessChainLoad(TranslatePrecisionDecoration(node->getRight()->getType()));
|
| 529 |
|
| 530 | if (node->getOp() != glslang::EOpAssign) {
|
| 531 | // the left is also an r-value
|
| 532 | builder.setAccessChain(lValue);
|
| 533 | spv::Id leftRValue = builder.accessChainLoad(TranslatePrecisionDecoration(node->getLeft()->getType()));
|
| 534 |
|
| 535 | // do the operation
|
| 536 | rValue = createBinaryOperation(node->getOp(), TranslatePrecisionDecoration(node->getType()),
|
| 537 | convertGlslangToSpvType(node->getType()), leftRValue, rValue,
|
| 538 | node->getType().getBasicType());
|
| 539 |
|
| 540 | // these all need their counterparts in createBinaryOperation()
|
| 541 | if (rValue == 0)
|
| 542 | spv::MissingFunctionality("createBinaryOperation");
|
| 543 | }
|
| 544 |
|
| 545 | // store the result
|
| 546 | builder.setAccessChain(lValue);
|
| 547 | builder.accessChainStore(rValue);
|
| 548 |
|
| 549 | // assignments are expressions having an rValue after they are evaluated...
|
| 550 | builder.clearAccessChain();
|
| 551 | builder.setAccessChainRValue(rValue);
|
| 552 | }
|
| 553 | return false;
|
| 554 | case glslang::EOpIndexDirect:
|
| 555 | case glslang::EOpIndexDirectStruct:
|
| 556 | {
|
| 557 | // Get the left part of the access chain.
|
| 558 | node->getLeft()->traverse(this);
|
| 559 |
|
| 560 | // Add the next element in the chain
|
| 561 |
|
| 562 | int index = 0;
|
| 563 | if (node->getRight()->getAsConstantUnion() == 0)
|
| 564 | spv::MissingFunctionality("direct index without a constant node");
|
| 565 | else
|
| 566 | index = node->getRight()->getAsConstantUnion()->getConstArray()[0].getIConst();
|
| 567 |
|
| 568 | if (node->getLeft()->getBasicType() == glslang::EbtBlock && node->getOp() == glslang::EOpIndexDirectStruct) {
|
| 569 | // This may be, e.g., an anonymous block-member selection, which generally need
|
| 570 | // index remapping due to hidden members in anonymous blocks.
|
| 571 | std::vector<int>& remapper = memberRemapper[node->getLeft()->getType().getStruct()];
|
| 572 | if (remapper.size() == 0)
|
| 573 | spv::MissingFunctionality("block without member remapping");
|
| 574 | else
|
| 575 | index = remapper[index];
|
| 576 | }
|
| 577 |
|
| 578 | if (! node->getLeft()->getType().isArray() &&
|
| 579 | node->getLeft()->getType().isVector() &&
|
| 580 | node->getOp() == glslang::EOpIndexDirect) {
|
| 581 | // This is essentially a hard-coded vector swizzle of size 1,
|
| 582 | // so short circuit the access-chain stuff with a swizzle.
|
| 583 | std::vector<unsigned> swizzle;
|
| 584 | swizzle.push_back(node->getRight()->getAsConstantUnion()->getConstArray()[0].getIConst());
|
| 585 | builder.accessChainPushSwizzle(swizzle, node->getLeft()->getVectorSize(), convertGlslangToSpvType(node->getType()));
|
| 586 | } else {
|
| 587 | // normal case for indexing array or structure or block
|
| 588 | builder.accessChainPush(builder.makeIntConstant(index), convertGlslangToSpvType(node->getType()));
|
| 589 | }
|
| 590 | }
|
| 591 | return false;
|
| 592 | case glslang::EOpIndexIndirect:
|
| 593 | {
|
| 594 | // Structure or array or vector indirection.
|
| 595 | // Will use native SPIR-V access-chain for struct and array indirection;
|
| 596 | // matrices are arrays of vectors, so will also work for a matrix.
|
| 597 | // Will use the access chain's 'component' for variable index into a vector.
|
| 598 |
|
| 599 | // This adapter is building access chains left to right.
|
| 600 | // Set up the access chain to the left.
|
| 601 | node->getLeft()->traverse(this);
|
| 602 |
|
| 603 | // save it so that computing the right side doesn't trash it
|
| 604 | spv::Builder::AccessChain partial = builder.getAccessChain();
|
| 605 |
|
| 606 | // compute the next index in the chain
|
| 607 | builder.clearAccessChain();
|
| 608 | node->getRight()->traverse(this);
|
| 609 | spv::Id index = builder.accessChainLoad(TranslatePrecisionDecoration(node->getRight()->getType()));
|
| 610 |
|
| 611 | // restore the saved access chain
|
| 612 | builder.setAccessChain(partial);
|
| 613 |
|
| 614 | if (! node->getLeft()->getType().isArray() && node->getLeft()->getType().isVector())
|
| 615 | builder.accessChainPushComponent(index);
|
| 616 | else
|
| 617 | builder.accessChainPush(index, convertGlslangToSpvType(node->getType()));
|
| 618 | }
|
| 619 | return false;
|
| 620 | case glslang::EOpVectorSwizzle:
|
| 621 | {
|
| 622 | node->getLeft()->traverse(this);
|
| 623 | glslang::TIntermSequence& swizzleSequence = node->getRight()->getAsAggregate()->getSequence();
|
| 624 | std::vector<unsigned> swizzle;
|
| 625 | for (int i = 0; i < (int)swizzleSequence.size(); ++i)
|
| 626 | swizzle.push_back(swizzleSequence[i]->getAsConstantUnion()->getConstArray()[0].getIConst());
|
| 627 | builder.accessChainPushSwizzle(swizzle, node->getLeft()->getVectorSize(), convertGlslangToSpvType(node->getType()));
|
| 628 | }
|
| 629 | return false;
|
| 630 | default:
|
| 631 | break;
|
| 632 | }
|
| 633 |
|
| 634 | // Assume generic binary op...
|
| 635 |
|
| 636 | // Get the operands
|
| 637 | builder.clearAccessChain();
|
| 638 | node->getLeft()->traverse(this);
|
| 639 | spv::Id left = builder.accessChainLoad(TranslatePrecisionDecoration(node->getLeft()->getType()));
|
| 640 |
|
| 641 | builder.clearAccessChain();
|
| 642 | node->getRight()->traverse(this);
|
| 643 | spv::Id right = builder.accessChainLoad(TranslatePrecisionDecoration(node->getRight()->getType()));
|
| 644 |
|
| 645 | spv::Id result;
|
| 646 | spv::Decoration precision = TranslatePrecisionDecoration(node->getType());
|
| 647 |
|
| 648 | result = createBinaryOperation(node->getOp(), precision,
|
| 649 | convertGlslangToSpvType(node->getType()), left, right,
|
| 650 | node->getLeft()->getType().getBasicType());
|
| 651 |
|
| 652 | if (! result) {
|
| 653 | spv::MissingFunctionality("glslang binary operation");
|
| 654 | } else {
|
| 655 | builder.clearAccessChain();
|
| 656 | builder.setAccessChainRValue(result);
|
| 657 |
|
| 658 | return false;
|
| 659 | }
|
| 660 |
|
| 661 | return true;
|
| 662 | }
|
| 663 |
|
| 664 | bool TGlslangToSpvTraverser::visitUnary(glslang::TVisit /* visit */, glslang::TIntermUnary* node)
|
| 665 | {
|
| 666 | builder.clearAccessChain();
|
| 667 | node->getOperand()->traverse(this);
|
| 668 | spv::Id operand = builder.accessChainLoad(TranslatePrecisionDecoration(node->getOperand()->getType()));
|
| 669 |
|
| 670 | spv::Decoration precision = TranslatePrecisionDecoration(node->getType());
|
| 671 |
|
| 672 | // it could be a conversion
|
| 673 | spv::Id result = createConversion(node->getOp(), precision, convertGlslangToSpvType(node->getType()), operand);
|
| 674 |
|
| 675 | // if not, then possibly an operation
|
| 676 | if (! result)
|
| 677 | result = createUnaryOperation(node->getOp(), precision, convertGlslangToSpvType(node->getType()), operand, node->getBasicType() == glslang::EbtFloat || node->getBasicType() == glslang::EbtDouble);
|
| 678 |
|
| 679 | if (result) {
|
| 680 | builder.clearAccessChain();
|
| 681 | builder.setAccessChainRValue(result);
|
| 682 |
|
| 683 | return false; // done with this node
|
| 684 | }
|
| 685 |
|
| 686 | // it must be a special case, check...
|
| 687 | switch (node->getOp()) {
|
| 688 | case glslang::EOpPostIncrement:
|
| 689 | case glslang::EOpPostDecrement:
|
| 690 | case glslang::EOpPreIncrement:
|
| 691 | case glslang::EOpPreDecrement:
|
| 692 | {
|
| 693 | // we need the integer value "1" or the floating point "1.0" to add/subtract
|
| 694 | spv::Id one = node->getBasicType() == glslang::EbtFloat ?
|
| 695 | builder.makeFloatConstant(1.0F) :
|
| 696 | builder.makeIntConstant(1);
|
| 697 | glslang::TOperator op;
|
| 698 | if (node->getOp() == glslang::EOpPreIncrement ||
|
| 699 | node->getOp() == glslang::EOpPostIncrement)
|
| 700 | op = glslang::EOpAdd;
|
| 701 | else
|
| 702 | op = glslang::EOpSub;
|
| 703 |
|
| 704 | spv::Id result = createBinaryOperation(op, TranslatePrecisionDecoration(node->getType()),
|
| 705 | convertGlslangToSpvType(node->getType()), operand, one,
|
| 706 | node->getType().getBasicType());
|
| 707 | if (result == 0)
|
| 708 | spv::MissingFunctionality("createBinaryOperation for unary");
|
| 709 |
|
| 710 | // The result of operation is always stored, but conditionally the
|
| 711 | // consumed result. The consumed result is always an r-value.
|
| 712 | builder.accessChainStore(result);
|
| 713 | builder.clearAccessChain();
|
| 714 | if (node->getOp() == glslang::EOpPreIncrement ||
|
| 715 | node->getOp() == glslang::EOpPreDecrement)
|
| 716 | builder.setAccessChainRValue(result);
|
| 717 | else
|
| 718 | builder.setAccessChainRValue(operand);
|
| 719 | }
|
| 720 |
|
| 721 | return false;
|
John Kessenich | 1f77cac | 2015-03-24 00:32:50 +0000 | [diff] [blame] | 722 |
|
| 723 | case glslang::EOpEmitStreamVertex:
|
| 724 | builder.createNoResultOp(spv::OpEmitStreamVertex, operand);
|
| 725 | return false;
|
| 726 | case glslang::EOpEndStreamPrimitive:
|
| 727 | builder.createNoResultOp(spv::OpEndStreamPrimitive, operand);
|
| 728 | return false;
|
| 729 |
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 730 | default:
|
| 731 | spv::MissingFunctionality("glslang unary");
|
| 732 | break;
|
| 733 | }
|
| 734 |
|
| 735 | return true;
|
| 736 | }
|
| 737 |
|
| 738 | bool TGlslangToSpvTraverser::visitAggregate(glslang::TVisit visit, glslang::TIntermAggregate* node)
|
| 739 | {
|
| 740 | spv::Id result;
|
| 741 | glslang::TOperator binOp = glslang::EOpNull;
|
| 742 | bool reduceComparison = true;
|
| 743 | bool isMatrix = false;
|
| 744 | bool noReturnValue = false;
|
| 745 |
|
| 746 | assert(node->getOp());
|
| 747 |
|
| 748 | spv::Decoration precision = TranslatePrecisionDecoration(node->getType());
|
| 749 |
|
| 750 | switch (node->getOp()) {
|
| 751 | case glslang::EOpSequence:
|
| 752 | {
|
| 753 | if (preVisit)
|
| 754 | ++sequenceDepth;
|
| 755 | else
|
| 756 | --sequenceDepth;
|
| 757 |
|
| 758 | if (sequenceDepth == 1) {
|
| 759 | // If this is the parent node of all the functions, we want to see them
|
| 760 | // early, so all call points have actual SPIR-V functions to reference.
|
| 761 | // In all cases, still let the traverser visit the children for us.
|
| 762 | makeFunctions(node->getAsAggregate()->getSequence());
|
| 763 |
|
| 764 | // Also, we want all globals initializers to go into the entry of main(), before
|
| 765 | // anything else gets there, so visit out of order, doing them all now.
|
| 766 | makeGlobalInitializers(node->getAsAggregate()->getSequence());
|
| 767 |
|
| 768 | // Initializers are done, don't want to visit again, but functions link objects need to be processed,
|
| 769 | // so do them manually.
|
| 770 | visitFunctions(node->getAsAggregate()->getSequence());
|
| 771 |
|
| 772 | return false;
|
| 773 | }
|
| 774 |
|
| 775 | return true;
|
| 776 | }
|
| 777 | case glslang::EOpLinkerObjects:
|
| 778 | {
|
| 779 | if (visit == glslang::EvPreVisit)
|
| 780 | linkageOnly = true;
|
| 781 | else
|
| 782 | linkageOnly = false;
|
| 783 |
|
| 784 | return true;
|
| 785 | }
|
| 786 | case glslang::EOpComma:
|
| 787 | {
|
| 788 | // processing from left to right naturally leaves the right-most
|
| 789 | // lying around in the access chain
|
| 790 | glslang::TIntermSequence& glslangOperands = node->getSequence();
|
| 791 | for (int i = 0; i < (int)glslangOperands.size(); ++i)
|
| 792 | glslangOperands[i]->traverse(this);
|
| 793 |
|
| 794 | return false;
|
| 795 | }
|
| 796 | case glslang::EOpFunction:
|
| 797 | if (visit == glslang::EvPreVisit) {
|
| 798 | if (isShaderEntrypoint(node)) {
|
| 799 | inMain = true;
|
| 800 | builder.setBuildPoint(shaderEntry->getLastBlock());
|
| 801 | } else {
|
| 802 | handleFunctionEntry(node);
|
| 803 | }
|
| 804 | } else {
|
| 805 | if (inMain)
|
| 806 | mainTerminated = true;
|
| 807 | builder.leaveFunction(inMain);
|
| 808 | inMain = false;
|
| 809 | }
|
| 810 |
|
| 811 | return true;
|
| 812 | case glslang::EOpParameters:
|
| 813 | // Parameters will have been consumed by EOpFunction processing, but not
|
| 814 | // the body, so we still visited the function node's children, making this
|
| 815 | // child redundant.
|
| 816 | return false;
|
| 817 | case glslang::EOpFunctionCall:
|
| 818 | {
|
| 819 | if (node->isUserDefined())
|
| 820 | result = handleUserFunctionCall(node);
|
| 821 | else
|
| 822 | result = handleBuiltInFunctionCall(node);
|
| 823 |
|
| 824 | if (! result) {
|
| 825 | spv::MissingFunctionality("glslang function call");
|
| 826 | glslang::TConstUnionArray emptyConsts;
|
| 827 | int nextConst = 0;
|
| 828 | result = createSpvConstant(node->getType(), emptyConsts, nextConst);
|
| 829 | }
|
| 830 | builder.clearAccessChain();
|
| 831 | builder.setAccessChainRValue(result);
|
| 832 |
|
| 833 | return false;
|
| 834 | }
|
| 835 | case glslang::EOpConstructMat2x2:
|
| 836 | case glslang::EOpConstructMat2x3:
|
| 837 | case glslang::EOpConstructMat2x4:
|
| 838 | case glslang::EOpConstructMat3x2:
|
| 839 | case glslang::EOpConstructMat3x3:
|
| 840 | case glslang::EOpConstructMat3x4:
|
| 841 | case glslang::EOpConstructMat4x2:
|
| 842 | case glslang::EOpConstructMat4x3:
|
| 843 | case glslang::EOpConstructMat4x4:
|
| 844 | case glslang::EOpConstructDMat2x2:
|
| 845 | case glslang::EOpConstructDMat2x3:
|
| 846 | case glslang::EOpConstructDMat2x4:
|
| 847 | case glslang::EOpConstructDMat3x2:
|
| 848 | case glslang::EOpConstructDMat3x3:
|
| 849 | case glslang::EOpConstructDMat3x4:
|
| 850 | case glslang::EOpConstructDMat4x2:
|
| 851 | case glslang::EOpConstructDMat4x3:
|
| 852 | case glslang::EOpConstructDMat4x4:
|
| 853 | isMatrix = true;
|
| 854 | // fall through
|
| 855 | case glslang::EOpConstructFloat:
|
| 856 | case glslang::EOpConstructVec2:
|
| 857 | case glslang::EOpConstructVec3:
|
| 858 | case glslang::EOpConstructVec4:
|
| 859 | case glslang::EOpConstructDouble:
|
| 860 | case glslang::EOpConstructDVec2:
|
| 861 | case glslang::EOpConstructDVec3:
|
| 862 | case glslang::EOpConstructDVec4:
|
| 863 | case glslang::EOpConstructBool:
|
| 864 | case glslang::EOpConstructBVec2:
|
| 865 | case glslang::EOpConstructBVec3:
|
| 866 | case glslang::EOpConstructBVec4:
|
| 867 | case glslang::EOpConstructInt:
|
| 868 | case glslang::EOpConstructIVec2:
|
| 869 | case glslang::EOpConstructIVec3:
|
| 870 | case glslang::EOpConstructIVec4:
|
| 871 | case glslang::EOpConstructUint:
|
| 872 | case glslang::EOpConstructUVec2:
|
| 873 | case glslang::EOpConstructUVec3:
|
| 874 | case glslang::EOpConstructUVec4:
|
| 875 | case glslang::EOpConstructStruct:
|
| 876 | {
|
| 877 | std::vector<spv::Id> arguments;
|
| 878 | translateArguments(node->getSequence(), arguments);
|
| 879 | spv::Id resultTypeId = convertGlslangToSpvType(node->getType());
|
| 880 | spv::Id constructed;
|
| 881 | if (node->getOp() == glslang::EOpConstructStruct || node->getType().isArray()) {
|
| 882 | std::vector<spv::Id> constituents;
|
| 883 | for (int c = 0; c < (int)arguments.size(); ++c)
|
| 884 | constituents.push_back(arguments[c]);
|
| 885 | constructed = builder.createCompositeConstruct(resultTypeId, constituents);
|
| 886 | } else {
|
| 887 | if (isMatrix)
|
| 888 | constructed = builder.createMatrixConstructor(precision, arguments, resultTypeId);
|
| 889 | else
|
| 890 | constructed = builder.createConstructor(precision, arguments, resultTypeId);
|
| 891 | }
|
| 892 |
|
| 893 | builder.clearAccessChain();
|
| 894 | builder.setAccessChainRValue(constructed);
|
| 895 |
|
| 896 | return false;
|
| 897 | }
|
| 898 |
|
| 899 | // These six are component-wise compares with component-wise results.
|
| 900 | // Forward on to createBinaryOperation(), requesting a vector result.
|
| 901 | case glslang::EOpLessThan:
|
| 902 | case glslang::EOpGreaterThan:
|
| 903 | case glslang::EOpLessThanEqual:
|
| 904 | case glslang::EOpGreaterThanEqual:
|
| 905 | case glslang::EOpVectorEqual:
|
| 906 | case glslang::EOpVectorNotEqual:
|
| 907 | {
|
| 908 | // Map the operation to a binary
|
| 909 | binOp = node->getOp();
|
| 910 | reduceComparison = false;
|
| 911 | switch (node->getOp()) {
|
| 912 | case glslang::EOpVectorEqual: binOp = glslang::EOpVectorEqual; break;
|
| 913 | case glslang::EOpVectorNotEqual: binOp = glslang::EOpVectorNotEqual; break;
|
| 914 | default: binOp = node->getOp(); break;
|
| 915 | }
|
| 916 |
|
| 917 | break;
|
| 918 | }
|
| 919 | case glslang::EOpMul:
|
| 920 | // compontent-wise matrix multiply
|
| 921 | binOp = glslang::EOpMul;
|
| 922 | break;
|
| 923 | case glslang::EOpOuterProduct:
|
| 924 | // two vectors multiplied to make a matrix
|
| 925 | binOp = glslang::EOpOuterProduct;
|
| 926 | break;
|
| 927 | case glslang::EOpDot:
|
| 928 | {
|
| 929 | // for scalar dot product, use multiply
|
| 930 | glslang::TIntermSequence& glslangOperands = node->getSequence();
|
| 931 | if (! glslangOperands[0]->getAsTyped()->isVector())
|
| 932 | binOp = glslang::EOpMul;
|
| 933 | break;
|
| 934 | }
|
| 935 | case glslang::EOpMod:
|
| 936 | // when an aggregate, this is the floating-point mod built-in function,
|
| 937 | // which can be emitted by the one in createBinaryOperation()
|
| 938 | binOp = glslang::EOpMod;
|
| 939 | break;
|
| 940 | case glslang::EOpArrayLength:
|
| 941 | {
|
| 942 | glslang::TIntermTyped* typedNode = node->getSequence()[0]->getAsTyped();
|
| 943 | assert(typedNode);
|
| 944 | spv::Id length = builder.makeIntConstant(typedNode->getType().getArraySize());
|
| 945 |
|
| 946 | builder.clearAccessChain();
|
| 947 | builder.setAccessChainRValue(length);
|
| 948 |
|
| 949 | return false;
|
| 950 | }
|
| 951 | case glslang::EOpEmitVertex:
|
| 952 | case glslang::EOpEndPrimitive:
|
| 953 | case glslang::EOpBarrier:
|
| 954 | case glslang::EOpMemoryBarrier:
|
| 955 | case glslang::EOpMemoryBarrierAtomicCounter:
|
| 956 | case glslang::EOpMemoryBarrierBuffer:
|
| 957 | case glslang::EOpMemoryBarrierImage:
|
| 958 | case glslang::EOpMemoryBarrierShared:
|
| 959 | case glslang::EOpGroupMemoryBarrier:
|
| 960 | noReturnValue = true;
|
John Kessenich | 1f77cac | 2015-03-24 00:32:50 +0000 | [diff] [blame] | 961 | // These all have 0 operands and will naturally finish up in the code below for 0 operands
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 962 | break;
|
| 963 |
|
| 964 | default:
|
| 965 | break;
|
| 966 | }
|
| 967 |
|
| 968 | //
|
| 969 | // See if it maps to a regular operation.
|
| 970 | //
|
| 971 |
|
| 972 | if (binOp != glslang::EOpNull) {
|
| 973 | glslang::TIntermTyped* left = node->getSequence()[0]->getAsTyped();
|
| 974 | glslang::TIntermTyped* right = node->getSequence()[1]->getAsTyped();
|
| 975 | assert(left && right);
|
| 976 |
|
| 977 | builder.clearAccessChain();
|
| 978 | left->traverse(this);
|
| 979 | spv::Id leftId = builder.accessChainLoad(TranslatePrecisionDecoration(left->getType()));
|
| 980 |
|
| 981 | builder.clearAccessChain();
|
| 982 | right->traverse(this);
|
| 983 | spv::Id rightId = builder.accessChainLoad(TranslatePrecisionDecoration(right->getType()));
|
| 984 |
|
| 985 | result = createBinaryOperation(binOp, precision,
|
| 986 | convertGlslangToSpvType(node->getType()), leftId, rightId,
|
| 987 | left->getType().getBasicType(), reduceComparison);
|
| 988 |
|
| 989 | // code above should only make binOp that exists in createBinaryOperation
|
| 990 | if (result == 0)
|
| 991 | spv::MissingFunctionality("createBinaryOperation for aggregate");
|
| 992 |
|
| 993 | builder.clearAccessChain();
|
| 994 | builder.setAccessChainRValue(result);
|
| 995 |
|
| 996 | return false;
|
| 997 | }
|
| 998 |
|
| 999 | glslang::TIntermSequence& glslangOperands = node->getSequence();
|
| 1000 | std::vector<spv::Id> operands;
|
| 1001 | for (int arg = 0; arg < (int)glslangOperands.size(); ++arg) {
|
| 1002 | builder.clearAccessChain();
|
| 1003 | glslangOperands[arg]->traverse(this);
|
| 1004 |
|
| 1005 | // special case l-value operands; there are just a few
|
| 1006 | bool lvalue = false;
|
| 1007 | switch (node->getOp()) {
|
| 1008 | //case glslang::EOpFrexp:
|
| 1009 | case glslang::EOpModf:
|
| 1010 | if (arg == 1)
|
| 1011 | lvalue = true;
|
| 1012 | break;
|
| 1013 | //case glslang::EOpUAddCarry:
|
| 1014 | //case glslang::EOpUSubBorrow:
|
| 1015 | //case glslang::EOpUMulExtended:
|
| 1016 | default:
|
| 1017 | break;
|
| 1018 | }
|
| 1019 | if (lvalue)
|
| 1020 | operands.push_back(builder.accessChainGetLValue());
|
| 1021 | else
|
| 1022 | operands.push_back(builder.accessChainLoad(TranslatePrecisionDecoration(glslangOperands[arg]->getAsTyped()->getType())));
|
| 1023 | }
|
| 1024 | switch (glslangOperands.size()) {
|
| 1025 | case 0:
|
| 1026 | result = createNoArgOperation(node->getOp());
|
| 1027 | break;
|
| 1028 | case 1:
|
| 1029 | result = createUnaryOperation(node->getOp(), precision, convertGlslangToSpvType(node->getType()), operands.front(), node->getType().getBasicType() == glslang::EbtFloat || node->getType().getBasicType() == glslang::EbtDouble);
|
| 1030 | break;
|
| 1031 | default:
|
| 1032 | {
|
| 1033 | const glslang::TType& type = glslangOperands.front()->getAsTyped()->getType();
|
| 1034 | result = createMiscOperation(node->getOp(), precision, convertGlslangToSpvType(node->getType()), operands, type.getBasicType() == glslang::EbtUint);
|
| 1035 | break;
|
| 1036 | }
|
| 1037 | }
|
| 1038 |
|
| 1039 | if (noReturnValue)
|
| 1040 | return false;
|
| 1041 |
|
| 1042 | if (! result) {
|
| 1043 | spv::MissingFunctionality("glslang aggregate");
|
| 1044 | return true;
|
| 1045 | } else {
|
| 1046 | builder.clearAccessChain();
|
| 1047 | builder.setAccessChainRValue(result);
|
| 1048 | return false;
|
| 1049 | }
|
| 1050 | }
|
| 1051 |
|
| 1052 | bool TGlslangToSpvTraverser::visitSelection(glslang::TVisit /* visit */, glslang::TIntermSelection* node)
|
| 1053 | {
|
| 1054 | // This path handles both if-then-else and ?:
|
| 1055 | // The if-then-else has a node type of void, while
|
| 1056 | // ?: has a non-void node type
|
| 1057 | spv::Id result = 0;
|
| 1058 | if (node->getBasicType() != glslang::EbtVoid) {
|
| 1059 | // don't handle this as just on-the-fly temporaries, because there will be two names
|
| 1060 | // and better to leave SSA to later passes
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 1061 | result = builder.createVariable(spv::StorageClassFunction, convertGlslangToSpvType(node->getType()));
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 1062 | }
|
| 1063 |
|
| 1064 | // emit the condition before doing anything with selection
|
| 1065 | node->getCondition()->traverse(this);
|
| 1066 |
|
| 1067 | // make an "if" based on the value created by the condition
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 1068 | spv::Builder::If ifBuilder(builder.accessChainLoad(spv::NoPrecision), builder);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 1069 |
|
| 1070 | if (node->getTrueBlock()) {
|
| 1071 | // emit the "then" statement
|
| 1072 | node->getTrueBlock()->traverse(this);
|
| 1073 | if (result)
|
| 1074 | builder.createStore(builder.accessChainLoad(TranslatePrecisionDecoration(node->getTrueBlock()->getAsTyped()->getType())), result);
|
| 1075 | }
|
| 1076 |
|
| 1077 | if (node->getFalseBlock()) {
|
| 1078 | ifBuilder.makeBeginElse();
|
| 1079 | // emit the "else" statement
|
| 1080 | node->getFalseBlock()->traverse(this);
|
| 1081 | if (result)
|
| 1082 | builder.createStore(builder.accessChainLoad(TranslatePrecisionDecoration(node->getFalseBlock()->getAsTyped()->getType())), result);
|
| 1083 | }
|
| 1084 |
|
| 1085 | ifBuilder.makeEndIf();
|
| 1086 |
|
| 1087 | if (result) {
|
| 1088 | // GLSL only has r-values as the result of a :?, but
|
| 1089 | // if we have an l-value, that can be more efficient if it will
|
| 1090 | // become the base of a complex r-value expression, because the
|
| 1091 | // next layer copies r-values into memory to use the access-chain mechanism
|
| 1092 | builder.clearAccessChain();
|
| 1093 | builder.setAccessChainLValue(result);
|
| 1094 | }
|
| 1095 |
|
| 1096 | return false;
|
| 1097 | }
|
| 1098 |
|
| 1099 | bool TGlslangToSpvTraverser::visitSwitch(glslang::TVisit /* visit */, glslang::TIntermSwitch* node)
|
| 1100 | {
|
| 1101 | // emit and get the condition before doing anything with switch
|
| 1102 | node->getCondition()->traverse(this);
|
| 1103 | spv::Id selector = builder.accessChainLoad(TranslatePrecisionDecoration(node->getCondition()->getAsTyped()->getType()));
|
| 1104 |
|
| 1105 | // browse the children to sort out code segments
|
| 1106 | int defaultSegment = -1;
|
| 1107 | std::vector<TIntermNode*> codeSegments;
|
| 1108 | glslang::TIntermSequence& sequence = node->getBody()->getSequence();
|
| 1109 | std::vector<int> caseValues;
|
| 1110 | std::vector<int> valueIndexToSegment(sequence.size()); // note: probably not all are used, it is an overestimate
|
| 1111 | for (glslang::TIntermSequence::iterator c = sequence.begin(); c != sequence.end(); ++c) {
|
| 1112 | TIntermNode* child = *c;
|
| 1113 | if (child->getAsBranchNode() && child->getAsBranchNode()->getFlowOp() == glslang::EOpDefault)
|
| 1114 | defaultSegment = codeSegments.size();
|
| 1115 | else if (child->getAsBranchNode() && child->getAsBranchNode()->getFlowOp() == glslang::EOpCase) {
|
| 1116 | valueIndexToSegment[caseValues.size()] = codeSegments.size();
|
| 1117 | caseValues.push_back(child->getAsBranchNode()->getExpression()->getAsConstantUnion()->getConstArray()[0].getIConst());
|
| 1118 | } else
|
| 1119 | codeSegments.push_back(child);
|
| 1120 | }
|
| 1121 |
|
| 1122 | // handle the case where the last code segment is missing, due to no code
|
| 1123 | // statements between the last case and the end of the switch statement
|
| 1124 | if ((int)codeSegments.size() == valueIndexToSegment[caseValues.size() - 1])
|
| 1125 | codeSegments.push_back(0);
|
| 1126 |
|
| 1127 | // make the switch statement
|
| 1128 | std::vector<spv::Block*> segmentBlocks; // returned, as the blocks allocated in the call
|
| 1129 | builder.makeSwitch(selector, codeSegments.size(), caseValues, valueIndexToSegment, defaultSegment, segmentBlocks);
|
| 1130 |
|
| 1131 | // emit all the code in the segments
|
| 1132 | breakForLoop.push(false);
|
| 1133 | for (unsigned int s = 0; s < codeSegments.size(); ++s) {
|
| 1134 | builder.nextSwitchSegment(segmentBlocks, s);
|
| 1135 | if (codeSegments[s])
|
| 1136 | codeSegments[s]->traverse(this);
|
| 1137 | else
|
| 1138 | builder.addSwitchBreak();
|
| 1139 | }
|
| 1140 | breakForLoop.pop();
|
| 1141 |
|
| 1142 | builder.endSwitch(segmentBlocks);
|
| 1143 |
|
| 1144 | return false;
|
| 1145 | }
|
| 1146 |
|
| 1147 | void TGlslangToSpvTraverser::visitConstantUnion(glslang::TIntermConstantUnion* node)
|
| 1148 | {
|
| 1149 | int nextConst = 0;
|
| 1150 | spv::Id constant = createSpvConstant(node->getType(), node->getConstArray(), nextConst);
|
| 1151 |
|
| 1152 | builder.clearAccessChain();
|
| 1153 | builder.setAccessChainRValue(constant);
|
| 1154 | }
|
| 1155 |
|
| 1156 | bool TGlslangToSpvTraverser::visitLoop(glslang::TVisit /* visit */, glslang::TIntermLoop* node)
|
| 1157 | {
|
| 1158 | // body emission needs to know what the for-loop terminal is when it sees a "continue"
|
| 1159 | loopTerminal.push(node->getTerminal());
|
| 1160 |
|
| 1161 | builder.makeNewLoop();
|
| 1162 |
|
| 1163 | bool bodyOut = false;
|
| 1164 | if (! node->testFirst()) {
|
| 1165 | if (node->getBody()) {
|
| 1166 | breakForLoop.push(true);
|
| 1167 | node->getBody()->traverse(this);
|
| 1168 | breakForLoop.pop();
|
| 1169 | }
|
| 1170 | bodyOut = true;
|
| 1171 | }
|
| 1172 |
|
| 1173 | if (node->getTest()) {
|
| 1174 | node->getTest()->traverse(this);
|
| 1175 | // the AST only contained the test computation, not the branch, we have to add it
|
| 1176 | spv::Id condition = builder.accessChainLoad(TranslatePrecisionDecoration(node->getTest()->getType()));
|
| 1177 | builder.createLoopHeaderBranch(condition);
|
| 1178 | }
|
| 1179 |
|
| 1180 | if (! bodyOut && node->getBody()) {
|
| 1181 | breakForLoop.push(true);
|
| 1182 | node->getBody()->traverse(this);
|
| 1183 | breakForLoop.pop();
|
| 1184 | }
|
| 1185 |
|
| 1186 | if (loopTerminal.top())
|
| 1187 | loopTerminal.top()->traverse(this);
|
| 1188 |
|
| 1189 | builder.closeLoop();
|
| 1190 |
|
| 1191 | loopTerminal.pop();
|
| 1192 |
|
| 1193 | return false;
|
| 1194 | }
|
| 1195 |
|
| 1196 | bool TGlslangToSpvTraverser::visitBranch(glslang::TVisit /* visit */, glslang::TIntermBranch* node)
|
| 1197 | {
|
| 1198 | if (node->getExpression())
|
| 1199 | node->getExpression()->traverse(this);
|
| 1200 |
|
| 1201 | switch (node->getFlowOp()) {
|
| 1202 | case glslang::EOpKill:
|
| 1203 | builder.makeDiscard();
|
| 1204 | break;
|
| 1205 | case glslang::EOpBreak:
|
| 1206 | if (breakForLoop.top())
|
| 1207 | builder.createLoopExit();
|
| 1208 | else
|
| 1209 | builder.addSwitchBreak();
|
| 1210 | break;
|
| 1211 | case glslang::EOpContinue:
|
| 1212 | if (loopTerminal.top())
|
| 1213 | loopTerminal.top()->traverse(this);
|
| 1214 | builder.createLoopBackEdge();
|
| 1215 | break;
|
| 1216 | case glslang::EOpReturn:
|
| 1217 | if (inMain)
|
| 1218 | builder.makeMainReturn();
|
| 1219 | else if (node->getExpression())
|
| 1220 | builder.makeReturn(false, builder.accessChainLoad(TranslatePrecisionDecoration(node->getExpression()->getType())));
|
| 1221 | else
|
| 1222 | builder.makeReturn();
|
| 1223 |
|
| 1224 | builder.clearAccessChain();
|
| 1225 | break;
|
| 1226 |
|
| 1227 | default:
|
| 1228 | spv::MissingFunctionality("branch type");
|
| 1229 | break;
|
| 1230 | }
|
| 1231 |
|
| 1232 | return false;
|
| 1233 | }
|
| 1234 |
|
| 1235 | spv::Id TGlslangToSpvTraverser::createSpvVariable(const glslang::TIntermSymbol* node)
|
| 1236 | {
|
| 1237 | // First, steer off constants, which are not SPIR-V variables, but
|
| 1238 | // can still have a mapping to a SPIR-V Id.
|
| 1239 | if (node->getQualifier().storage == glslang::EvqConst) {
|
| 1240 | int nextConst = 0;
|
| 1241 | return createSpvConstant(node->getType(), node->getConstArray(), nextConst);
|
| 1242 | }
|
| 1243 |
|
| 1244 | // Now, handle actual variables
|
| 1245 | spv::StorageClass storageClass = TranslateStorageClass(node->getType());
|
| 1246 | spv::Id spvType = convertGlslangToSpvType(node->getType());
|
| 1247 |
|
| 1248 | const char* name = node->getName().c_str();
|
| 1249 | if (glslang::IsAnonymous(name))
|
| 1250 | name = "";
|
| 1251 |
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 1252 | if (storageClass == spv::BadValue)
|
| 1253 | return builder.createVariable(spv::StorageClassFunction, spvType, name);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 1254 | else
|
| 1255 | return builder.createVariable(storageClass, spvType, name);
|
| 1256 | }
|
| 1257 |
|
| 1258 | // Return type Id of the sampled type.
|
| 1259 | spv::Id TGlslangToSpvTraverser::getSampledType(const glslang::TSampler& sampler)
|
| 1260 | {
|
| 1261 | switch (sampler.type) {
|
| 1262 | case glslang::EbtFloat: return builder.makeFloatType(32);
|
| 1263 | case glslang::EbtInt: return builder.makeIntType(32);
|
| 1264 | case glslang::EbtUint: return builder.makeUintType(32);
|
| 1265 | default:
|
| 1266 | spv::MissingFunctionality("sampled type");
|
| 1267 | return builder.makeFloatType(32);
|
| 1268 | }
|
| 1269 | }
|
| 1270 |
|
| 1271 | // Do full recursive conversion of an arbitrary glslang type to a SPIR-V Id.
|
| 1272 | spv::Id TGlslangToSpvTraverser::convertGlslangToSpvType(const glslang::TType& type)
|
| 1273 | {
|
| 1274 | spv::Id spvType;
|
| 1275 |
|
| 1276 | switch (type.getBasicType()) {
|
| 1277 | case glslang::EbtVoid:
|
| 1278 | spvType = builder.makeVoidType();
|
| 1279 | if (type.isArray())
|
| 1280 | spv::MissingFunctionality("array of void");
|
| 1281 | break;
|
| 1282 | case glslang::EbtFloat:
|
| 1283 | spvType = builder.makeFloatType(32);
|
| 1284 | break;
|
| 1285 | case glslang::EbtDouble:
|
| 1286 | spvType = builder.makeFloatType(64);
|
| 1287 | break;
|
| 1288 | case glslang::EbtBool:
|
| 1289 | spvType = builder.makeBoolType();
|
| 1290 | break;
|
| 1291 | case glslang::EbtInt:
|
| 1292 | spvType = builder.makeIntType(32);
|
| 1293 | break;
|
| 1294 | case glslang::EbtUint:
|
| 1295 | spvType = builder.makeUintType(32);
|
| 1296 | break;
|
| 1297 | case glslang::EbtSampler:
|
| 1298 | {
|
| 1299 | const glslang::TSampler& sampler = type.getSampler();
|
| 1300 | spvType = builder.makeSampler(getSampledType(sampler), TranslateDimensionality(sampler),
|
| 1301 | sampler.image ? spv::Builder::samplerContentImage : spv::Builder::samplerContentTextureFilter,
|
| 1302 | sampler.arrayed, sampler.shadow, sampler.ms);
|
| 1303 | }
|
| 1304 | break;
|
| 1305 | case glslang::EbtStruct:
|
| 1306 | case glslang::EbtBlock:
|
| 1307 | {
|
| 1308 | // If we've seen this struct type, return it
|
| 1309 | const glslang::TTypeList* glslangStruct = type.getStruct();
|
| 1310 | std::vector<spv::Id> structFields;
|
| 1311 | spvType = structMap[glslangStruct];
|
| 1312 | if (spvType)
|
| 1313 | break;
|
| 1314 |
|
| 1315 | // else, we haven't seen it...
|
| 1316 |
|
| 1317 | // Create a vector of struct types for SPIR-V to consume
|
| 1318 | int memberDelta = 0; // how much the member's index changes from glslang to SPIR-V, normally 0, except sometimes for blocks
|
| 1319 | if (type.getBasicType() == glslang::EbtBlock)
|
| 1320 | memberRemapper[glslangStruct].resize(glslangStruct->size());
|
| 1321 | for (int i = 0; i < (int)glslangStruct->size(); i++) {
|
| 1322 | glslang::TType& glslangType = *(*glslangStruct)[i].type;
|
| 1323 | if (glslangType.hiddenMember()) {
|
| 1324 | ++memberDelta;
|
| 1325 | if (type.getBasicType() == glslang::EbtBlock)
|
| 1326 | memberRemapper[glslangStruct][i] = -1;
|
| 1327 | } else {
|
| 1328 | if (type.getBasicType() == glslang::EbtBlock)
|
| 1329 | memberRemapper[glslangStruct][i] = i - memberDelta;
|
| 1330 | structFields.push_back(convertGlslangToSpvType(glslangType));
|
| 1331 | }
|
| 1332 | }
|
| 1333 |
|
| 1334 | // Make the SPIR-V type
|
| 1335 | spvType = builder.makeStructType(structFields, type.getTypeName().c_str());
|
| 1336 | structMap[glslangStruct] = spvType;
|
| 1337 |
|
| 1338 | // Name and decorate the non-hidden members
|
| 1339 | for (int i = 0; i < (int)glslangStruct->size(); i++) {
|
| 1340 | glslang::TType& glslangType = *(*glslangStruct)[i].type;
|
| 1341 | int member = i;
|
| 1342 | if (type.getBasicType() == glslang::EbtBlock)
|
| 1343 | member = memberRemapper[glslangStruct][i];
|
| 1344 | // using -1 above to indicate a hidden member
|
| 1345 | if (member >= 0) {
|
| 1346 | builder.addMemberName(spvType, member, glslangType.getFieldName().c_str());
|
| 1347 | addMemberDecoration(spvType, member, TranslateLayoutDecoration(glslangType));
|
| 1348 | addMemberDecoration(spvType, member, TranslatePrecisionDecoration(glslangType));
|
| 1349 | addMemberDecoration(spvType, member, TranslateInterpolationDecoration(glslangType));
|
| 1350 | addMemberDecoration(spvType, member, TranslateInvariantDecoration(glslangType));
|
| 1351 | if (glslangType.getQualifier().hasLocation())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 1352 | builder.addMemberDecoration(spvType, member, spv::DecorationLocation, glslangType.getQualifier().layoutLocation);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 1353 | if (glslangType.getQualifier().hasComponent())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 1354 | builder.addMemberDecoration(spvType, member, spv::DecorationComponent, glslangType.getQualifier().layoutComponent);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 1355 | if (glslangType.getQualifier().hasXfbOffset())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 1356 | builder.addMemberDecoration(spvType, member, spv::DecorationOffset, glslangType.getQualifier().layoutXfbOffset);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 1357 | }
|
| 1358 | }
|
| 1359 |
|
| 1360 | // Decorate the structure
|
| 1361 | addDecoration(spvType, TranslateLayoutDecoration(type));
|
| 1362 | addDecoration(spvType, TranslateBlockDecoration(type));
|
| 1363 | if (type.getQualifier().hasStream())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 1364 | builder.addDecoration(spvType, spv::DecorationStream, type.getQualifier().layoutStream);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 1365 | if (glslangIntermediate->getXfbMode()) {
|
| 1366 | if (type.getQualifier().hasXfbStride())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 1367 | builder.addDecoration(spvType, spv::DecorationStride, type.getQualifier().layoutXfbStride);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 1368 | if (type.getQualifier().hasXfbBuffer())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 1369 | builder.addDecoration(spvType, spv::DecorationXfbBuffer, type.getQualifier().layoutXfbBuffer);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 1370 | }
|
| 1371 | }
|
| 1372 | break;
|
| 1373 | default:
|
| 1374 | spv::MissingFunctionality("basic type");
|
| 1375 | break;
|
| 1376 | }
|
| 1377 |
|
| 1378 | if (type.isMatrix())
|
| 1379 | spvType = builder.makeMatrixType(spvType, type.getMatrixCols(), type.getMatrixRows());
|
| 1380 | else {
|
| 1381 | // If this variable has a vector element count greater than 1, create a SPIR-V vector
|
| 1382 | if (type.getVectorSize() > 1)
|
| 1383 | spvType = builder.makeVectorType(spvType, type.getVectorSize());
|
| 1384 | }
|
| 1385 |
|
| 1386 | if (type.isArray()) {
|
| 1387 | unsigned arraySize;
|
| 1388 | if (! type.isExplicitlySizedArray()) {
|
| 1389 | spv::MissingFunctionality("Unsized array");
|
| 1390 | arraySize = 8;
|
| 1391 | } else
|
| 1392 | arraySize = type.getArraySize();
|
| 1393 | spvType = builder.makeArrayType(spvType, arraySize);
|
| 1394 | }
|
| 1395 |
|
| 1396 | return spvType;
|
| 1397 | }
|
| 1398 |
|
| 1399 | bool TGlslangToSpvTraverser::isShaderEntrypoint(const glslang::TIntermAggregate* node)
|
| 1400 | {
|
| 1401 | return node->getName() == "main(";
|
| 1402 | }
|
| 1403 |
|
| 1404 | // Make all the functions, skeletally, without actually visiting their bodies.
|
| 1405 | void TGlslangToSpvTraverser::makeFunctions(const glslang::TIntermSequence& glslFunctions)
|
| 1406 | {
|
| 1407 | for (int f = 0; f < (int)glslFunctions.size(); ++f) {
|
| 1408 | glslang::TIntermAggregate* glslFunction = glslFunctions[f]->getAsAggregate();
|
| 1409 | if (! glslFunction || glslFunction->getOp() != glslang::EOpFunction || isShaderEntrypoint(glslFunction))
|
| 1410 | continue;
|
| 1411 |
|
| 1412 | // We're on a user function. Set up the basic interface for the function now,
|
| 1413 | // so that it's available to call.
|
| 1414 | // Translating the body will happen later.
|
| 1415 | //
|
| 1416 | // Typically (except for a "const in" parameter), an address will be passed to the
|
| 1417 | // function. What it is an address of varies:
|
| 1418 | //
|
| 1419 | // - "in" parameters not marked as "const" can be written to without modifying the argument,
|
| 1420 | // so that write needs to be to a copy, hence the address of a copy works.
|
| 1421 | //
|
| 1422 | // - "const in" parameters can just be the r-value, as no writes need occur.
|
| 1423 | //
|
| 1424 | // - "out" and "inout" arguments can't be done as direct pointers, because GLSL has
|
| 1425 | // copy-in/copy-out semantics. They can be handled though with a pointer to a copy.
|
| 1426 |
|
| 1427 | std::vector<spv::Id> paramTypes;
|
| 1428 | glslang::TIntermSequence& parameters = glslFunction->getSequence()[0]->getAsAggregate()->getSequence();
|
| 1429 |
|
| 1430 | for (int p = 0; p < (int)parameters.size(); ++p) {
|
| 1431 | const glslang::TType& paramType = parameters[p]->getAsTyped()->getType();
|
| 1432 | spv::Id typeId = convertGlslangToSpvType(paramType);
|
| 1433 | if (paramType.getQualifier().storage != glslang::EvqConstReadOnly)
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 1434 | typeId = builder.makePointer(spv::StorageClassFunction, typeId);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 1435 | else
|
| 1436 | constReadOnlyParameters.insert(parameters[p]->getAsSymbolNode()->getId());
|
| 1437 | paramTypes.push_back(typeId);
|
| 1438 | }
|
| 1439 |
|
| 1440 | spv::Block* functionBlock;
|
| 1441 | spv::Function *function = builder.makeFunctionEntry(convertGlslangToSpvType(glslFunction->getType()), glslFunction->getName().c_str(),
|
| 1442 | paramTypes, &functionBlock);
|
| 1443 |
|
| 1444 | // Track function to emit/call later
|
| 1445 | functionMap[glslFunction->getName().c_str()] = function;
|
| 1446 |
|
| 1447 | // Set the parameter id's
|
| 1448 | for (int p = 0; p < (int)parameters.size(); ++p) {
|
| 1449 | symbolValues[parameters[p]->getAsSymbolNode()->getId()] = function->getParamId(p);
|
| 1450 | // give a name too
|
| 1451 | builder.addName(function->getParamId(p), parameters[p]->getAsSymbolNode()->getName().c_str());
|
| 1452 | }
|
| 1453 | }
|
| 1454 | }
|
| 1455 |
|
| 1456 | // Process all the initializers, while skipping the functions and link objects
|
| 1457 | void TGlslangToSpvTraverser::makeGlobalInitializers(const glslang::TIntermSequence& initializers)
|
| 1458 | {
|
| 1459 | builder.setBuildPoint(shaderEntry->getLastBlock());
|
| 1460 | for (int i = 0; i < (int)initializers.size(); ++i) {
|
| 1461 | glslang::TIntermAggregate* initializer = initializers[i]->getAsAggregate();
|
| 1462 | if (initializer && initializer->getOp() != glslang::EOpFunction && initializer->getOp() != glslang::EOpLinkerObjects) {
|
| 1463 |
|
| 1464 | // We're on a top-level node that's not a function. Treat as an initializer, whose
|
| 1465 | // code goes into the beginning of main.
|
| 1466 | initializer->traverse(this);
|
| 1467 | }
|
| 1468 | }
|
| 1469 | }
|
| 1470 |
|
| 1471 | // Process all the functions, while skipping initializers.
|
| 1472 | void TGlslangToSpvTraverser::visitFunctions(const glslang::TIntermSequence& glslFunctions)
|
| 1473 | {
|
| 1474 | for (int f = 0; f < (int)glslFunctions.size(); ++f) {
|
| 1475 | glslang::TIntermAggregate* node = glslFunctions[f]->getAsAggregate();
|
| 1476 | if (node && (node->getOp() == glslang::EOpFunction || node->getOp() == glslang ::EOpLinkerObjects))
|
| 1477 | node->traverse(this);
|
| 1478 | }
|
| 1479 | }
|
| 1480 |
|
| 1481 | void TGlslangToSpvTraverser::handleFunctionEntry(const glslang::TIntermAggregate* node)
|
| 1482 | {
|
| 1483 | // SPIR-V functions should already be in the functionMap from the prepass
|
| 1484 | // that called makeFunctions().
|
| 1485 | spv::Function* function = functionMap[node->getName().c_str()];
|
| 1486 | spv::Block* functionBlock = function->getEntryBlock();
|
| 1487 | builder.setBuildPoint(functionBlock);
|
| 1488 | }
|
| 1489 |
|
| 1490 | void TGlslangToSpvTraverser::translateArguments(const glslang::TIntermSequence& glslangArguments, std::vector<spv::Id>& arguments)
|
| 1491 | {
|
| 1492 | for (int i = 0; i < (int)glslangArguments.size(); ++i) {
|
| 1493 | builder.clearAccessChain();
|
| 1494 | glslangArguments[i]->traverse(this);
|
| 1495 | arguments.push_back(builder.accessChainLoad(TranslatePrecisionDecoration(glslangArguments[i]->getAsTyped()->getType())));
|
| 1496 | }
|
| 1497 | }
|
| 1498 |
|
| 1499 | spv::Id TGlslangToSpvTraverser::handleBuiltInFunctionCall(const glslang::TIntermAggregate* node)
|
| 1500 | {
|
| 1501 | std::vector<spv::Id> arguments;
|
| 1502 | translateArguments(node->getSequence(), arguments);
|
| 1503 |
|
| 1504 | std::vector<spv::Id> argTypes;
|
| 1505 | for (int a = 0; a < (int)arguments.size(); ++a)
|
| 1506 | argTypes.push_back(builder.getTypeId(arguments[a]));
|
| 1507 |
|
| 1508 | spv::Decoration precision = TranslatePrecisionDecoration(node->getType());
|
| 1509 |
|
| 1510 | if (node->getName() == "ftransform(") {
|
| 1511 | spv::MissingFunctionality("ftransform()");
|
| 1512 | //spv::Id vertex = builder.createVariable(spv::StorageShaderGlobal, spv::VectorType::get(spv::makeFloatType(), 4),
|
| 1513 | // "gl_Vertex_sim");
|
| 1514 | //spv::Id matrix = builder.createVariable(spv::StorageShaderGlobal, spv::VectorType::get(spv::makeFloatType(), 4),
|
| 1515 | // "gl_ModelViewProjectionMatrix_sim");
|
| 1516 | return 0;
|
| 1517 | }
|
| 1518 |
|
| 1519 | if (node->getName().substr(0, 7) == "texture" || node->getName().substr(0, 5) == "texel" || node->getName().substr(0, 6) == "shadow") {
|
| 1520 | const glslang::TSampler sampler = node->getSequence()[0]->getAsTyped()->getType().getSampler();
|
| 1521 | spv::Builder::TextureParameters params = { };
|
| 1522 | params.sampler = arguments[0];
|
| 1523 |
|
| 1524 | // special case size query
|
| 1525 | if (node->getName().find("textureSize", 0) != std::string::npos) {
|
| 1526 | if (arguments.size() > 1) {
|
| 1527 | params.lod = arguments[1];
|
| 1528 | return builder.createTextureQueryCall(spv::OpTextureQuerySizeLod, params);
|
| 1529 | } else
|
| 1530 | return builder.createTextureQueryCall(spv::OpTextureQuerySize, params);
|
| 1531 | }
|
| 1532 |
|
| 1533 | // special case the number of samples query
|
| 1534 | if (node->getName().find("textureSamples", 0) != std::string::npos)
|
| 1535 | return builder.createTextureQueryCall(spv::OpTextureQuerySamples, params);
|
| 1536 |
|
| 1537 | // special case the other queries
|
| 1538 | if (node->getName().find("Query", 0) != std::string::npos) {
|
| 1539 | if (node->getName().find("Levels", 0) != std::string::npos)
|
| 1540 | return builder.createTextureQueryCall(spv::OpTextureQueryLevels, params);
|
| 1541 | else if (node->getName().find("Lod", 0) != std::string::npos) {
|
| 1542 | params.coords = arguments[1];
|
| 1543 | return builder.createTextureQueryCall(spv::OpTextureQueryLod, params);
|
| 1544 | } else
|
| 1545 | spv::MissingFunctionality("glslang texture query");
|
| 1546 | }
|
| 1547 |
|
| 1548 | // This is no longer a query....
|
| 1549 |
|
| 1550 | bool lod = node->getName().find("Lod", 0) != std::string::npos;
|
| 1551 | bool proj = node->getName().find("Proj", 0) != std::string::npos;
|
| 1552 | bool offsets = node->getName().find("Offsets", 0) != std::string::npos;
|
| 1553 | bool offset = ! offsets && node->getName().find("Offset", 0) != std::string::npos;
|
| 1554 | bool fetch = node->getName().find("Fetch", 0) != std::string::npos;
|
| 1555 | bool gather = node->getName().find("Gather", 0) != std::string::npos;
|
| 1556 | bool grad = node->getName().find("Grad", 0) != std::string::npos;
|
| 1557 |
|
| 1558 | if (fetch)
|
| 1559 | spv::MissingFunctionality("texel fetch");
|
| 1560 | if (gather)
|
| 1561 | spv::MissingFunctionality("texture gather");
|
| 1562 |
|
| 1563 | // check for bias argument
|
| 1564 | bool bias = false;
|
| 1565 | if (! lod && ! gather && ! grad && ! fetch) {
|
| 1566 | int nonBiasArgCount = 2;
|
| 1567 | if (offset)
|
| 1568 | ++nonBiasArgCount;
|
| 1569 | if (grad)
|
| 1570 | nonBiasArgCount += 2;
|
| 1571 |
|
| 1572 | if ((int)arguments.size() > nonBiasArgCount)
|
| 1573 | bias = true;
|
| 1574 | }
|
| 1575 |
|
| 1576 | bool cubeCompare = sampler.dim == glslang::EsdCube && sampler.arrayed && sampler.shadow;
|
| 1577 |
|
| 1578 | // set the rest of the arguments
|
| 1579 | params.coords = arguments[1];
|
| 1580 | int extraArgs = 0;
|
| 1581 | if (cubeCompare)
|
| 1582 | params.Dref = arguments[2];
|
| 1583 | if (lod) {
|
| 1584 | params.lod = arguments[2];
|
| 1585 | ++extraArgs;
|
| 1586 | }
|
| 1587 | if (grad) {
|
| 1588 | params.gradX = arguments[2 + extraArgs];
|
| 1589 | params.gradY = arguments[3 + extraArgs];
|
| 1590 | extraArgs += 2;
|
| 1591 | }
|
| 1592 | //if (gather && compare) {
|
| 1593 | // params.compare = arguments[2 + extraArgs];
|
| 1594 | // ++extraArgs;
|
| 1595 | //}
|
| 1596 | if (offset | offsets) {
|
| 1597 | params.offset = arguments[2 + extraArgs];
|
| 1598 | ++extraArgs;
|
| 1599 | }
|
| 1600 | if (bias) {
|
| 1601 | params.bias = arguments[2 + extraArgs];
|
| 1602 | ++extraArgs;
|
| 1603 | }
|
| 1604 |
|
| 1605 | return builder.createTextureCall(precision, convertGlslangToSpvType(node->getType()), proj, params);
|
| 1606 | }
|
| 1607 |
|
| 1608 | spv::MissingFunctionality("built-in function call");
|
| 1609 |
|
| 1610 | return 0;
|
| 1611 | }
|
| 1612 |
|
| 1613 | spv::Id TGlslangToSpvTraverser::handleUserFunctionCall(const glslang::TIntermAggregate* node)
|
| 1614 | {
|
| 1615 | // Grab the function's pointer from the previously created function
|
| 1616 | spv::Function* function = functionMap[node->getName().c_str()];
|
| 1617 | if (! function)
|
| 1618 | return 0;
|
| 1619 |
|
| 1620 | const glslang::TIntermSequence& glslangArgs = node->getSequence();
|
| 1621 | const glslang::TQualifierList& qualifiers = node->getQualifierList();
|
| 1622 |
|
| 1623 | // See comments in makeFunctions() for details about the semantics for parameter passing.
|
| 1624 | //
|
| 1625 | // These imply we need a four step process:
|
| 1626 | // 1. Evaluate the arguments
|
| 1627 | // 2. Allocate and make copies of in, out, and inout arguments
|
| 1628 | // 3. Make the call
|
| 1629 | // 4. Copy back the results
|
| 1630 |
|
| 1631 | // 1. Evaluate the arguments
|
| 1632 | std::vector<spv::Builder::AccessChain> lValues;
|
| 1633 | std::vector<spv::Id> rValues;
|
| 1634 | for (int a = 0; a < (int)glslangArgs.size(); ++a) {
|
| 1635 | // build l-value
|
| 1636 | builder.clearAccessChain();
|
| 1637 | glslangArgs[a]->traverse(this);
|
| 1638 | // keep outputs as l-values, evaluate input-only as r-values
|
| 1639 | if (qualifiers[a] != glslang::EvqConstReadOnly) {
|
| 1640 | // save l-value
|
| 1641 | lValues.push_back(builder.getAccessChain());
|
| 1642 | } else {
|
| 1643 | // process r-value
|
| 1644 | rValues.push_back(builder.accessChainLoad(TranslatePrecisionDecoration(glslangArgs[a]->getAsTyped()->getType())));
|
| 1645 | }
|
| 1646 | }
|
| 1647 |
|
| 1648 | // 2. Allocate space for anything needing a copy, and if it's "in" or "inout"
|
| 1649 | // copy the original into that space.
|
| 1650 | //
|
| 1651 | // Also, build up the list of actual arguments to pass in for the call
|
| 1652 | int lValueCount = 0;
|
| 1653 | int rValueCount = 0;
|
| 1654 | std::vector<spv::Id> spvArgs;
|
| 1655 | for (int a = 0; a < (int)glslangArgs.size(); ++a) {
|
| 1656 | spv::Id arg;
|
| 1657 | if (qualifiers[a] != glslang::EvqConstReadOnly) {
|
| 1658 | // need space to hold the copy
|
| 1659 | const glslang::TType& paramType = glslangArgs[a]->getAsTyped()->getType();
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 1660 | arg = builder.createVariable(spv::StorageClassFunction, convertGlslangToSpvType(paramType), "param");
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 1661 | if (qualifiers[a] == glslang::EvqIn || qualifiers[a] == glslang::EvqInOut) {
|
| 1662 | // need to copy the input into output space
|
| 1663 | builder.setAccessChain(lValues[lValueCount]);
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 1664 | spv::Id copy = builder.accessChainLoad(spv::NoPrecision); // TODO: get precision
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 1665 | builder.createStore(copy, arg);
|
| 1666 | }
|
| 1667 | ++lValueCount;
|
| 1668 | } else {
|
| 1669 | arg = rValues[rValueCount];
|
| 1670 | ++rValueCount;
|
| 1671 | }
|
| 1672 | spvArgs.push_back(arg);
|
| 1673 | }
|
| 1674 |
|
| 1675 | // 3. Make the call.
|
| 1676 | spv::Id result = builder.createFunctionCall(function, spvArgs);
|
| 1677 |
|
| 1678 | // 4. Copy back out an "out" arguments.
|
| 1679 | lValueCount = 0;
|
| 1680 | for (int a = 0; a < (int)glslangArgs.size(); ++a) {
|
| 1681 | if (qualifiers[a] != glslang::EvqConstReadOnly) {
|
| 1682 | if (qualifiers[a] == glslang::EvqOut || qualifiers[a] == glslang::EvqInOut) {
|
| 1683 | spv::Id copy = builder.createLoad(spvArgs[a]);
|
| 1684 | builder.setAccessChain(lValues[lValueCount]);
|
| 1685 | builder.accessChainStore(copy);
|
| 1686 | }
|
| 1687 | ++lValueCount;
|
| 1688 | }
|
| 1689 | }
|
| 1690 |
|
| 1691 | return result;
|
| 1692 | }
|
| 1693 |
|
| 1694 | spv::Id TGlslangToSpvTraverser::createBinaryOperation(glslang::TOperator op, spv::Decoration precision,
|
| 1695 | spv::Id typeId, spv::Id left, spv::Id right,
|
| 1696 | glslang::TBasicType typeProxy, bool reduceComparison)
|
| 1697 | {
|
| 1698 | bool isUnsigned = typeProxy == glslang::EbtUint;
|
| 1699 | bool isFloat = typeProxy == glslang::EbtFloat || typeProxy == glslang::EbtDouble;
|
| 1700 |
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 1701 | spv::Op binOp = spv::OpNop;
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 1702 | bool needsPromotion = true;
|
| 1703 | bool comparison = false;
|
| 1704 |
|
| 1705 | switch (op) {
|
| 1706 | case glslang::EOpAdd:
|
| 1707 | case glslang::EOpAddAssign:
|
| 1708 | if (isFloat)
|
| 1709 | binOp = spv::OpFAdd;
|
| 1710 | else
|
| 1711 | binOp = spv::OpIAdd;
|
| 1712 | break;
|
| 1713 | case glslang::EOpSub:
|
| 1714 | case glslang::EOpSubAssign:
|
| 1715 | if (isFloat)
|
| 1716 | binOp = spv::OpFSub;
|
| 1717 | else
|
| 1718 | binOp = spv::OpISub;
|
| 1719 | break;
|
| 1720 | case glslang::EOpMul:
|
| 1721 | case glslang::EOpMulAssign:
|
| 1722 | if (isFloat)
|
| 1723 | binOp = spv::OpFMul;
|
| 1724 | else
|
| 1725 | binOp = spv::OpIMul;
|
| 1726 | break;
|
| 1727 | case glslang::EOpVectorTimesScalar:
|
| 1728 | case glslang::EOpVectorTimesScalarAssign:
|
| 1729 | binOp = spv::OpVectorTimesScalar;
|
| 1730 | needsPromotion = false;
|
| 1731 | break;
|
| 1732 | case glslang::EOpVectorTimesMatrix:
|
| 1733 | case glslang::EOpVectorTimesMatrixAssign:
|
| 1734 | binOp = spv::OpVectorTimesMatrix;
|
| 1735 | break;
|
| 1736 | case glslang::EOpMatrixTimesVector:
|
| 1737 | binOp = spv::OpMatrixTimesVector;
|
| 1738 | break;
|
| 1739 | case glslang::EOpMatrixTimesScalar:
|
| 1740 | case glslang::EOpMatrixTimesScalarAssign:
|
| 1741 | binOp = spv::OpMatrixTimesScalar;
|
| 1742 | break;
|
| 1743 | case glslang::EOpMatrixTimesMatrix:
|
| 1744 | case glslang::EOpMatrixTimesMatrixAssign:
|
| 1745 | binOp = spv::OpMatrixTimesMatrix;
|
| 1746 | break;
|
| 1747 | case glslang::EOpOuterProduct:
|
| 1748 | binOp = spv::OpOuterProduct;
|
| 1749 | needsPromotion = false;
|
| 1750 | break;
|
| 1751 |
|
| 1752 | case glslang::EOpDiv:
|
| 1753 | case glslang::EOpDivAssign:
|
| 1754 | if (isFloat)
|
| 1755 | binOp = spv::OpFDiv;
|
| 1756 | else if (isUnsigned)
|
| 1757 | binOp = spv::OpUDiv;
|
| 1758 | else
|
| 1759 | binOp = spv::OpSDiv;
|
| 1760 | break;
|
| 1761 | case glslang::EOpMod:
|
| 1762 | case glslang::EOpModAssign:
|
| 1763 | if (isFloat)
|
| 1764 | binOp = spv::OpFMod;
|
| 1765 | else if (isUnsigned)
|
| 1766 | binOp = spv::OpUMod;
|
| 1767 | else
|
| 1768 | binOp = spv::OpSMod;
|
| 1769 | break;
|
| 1770 | case glslang::EOpRightShift:
|
| 1771 | case glslang::EOpRightShiftAssign:
|
| 1772 | if (isUnsigned)
|
| 1773 | binOp = spv::OpShiftRightLogical;
|
| 1774 | else
|
| 1775 | binOp = spv::OpShiftRightArithmetic;
|
| 1776 | break;
|
| 1777 | case glslang::EOpLeftShift:
|
| 1778 | case glslang::EOpLeftShiftAssign:
|
| 1779 | binOp = spv::OpShiftLeftLogical;
|
| 1780 | break;
|
| 1781 | case glslang::EOpAnd:
|
| 1782 | case glslang::EOpAndAssign:
|
| 1783 | binOp = spv::OpBitwiseAnd;
|
| 1784 | break;
|
| 1785 | case glslang::EOpLogicalAnd:
|
| 1786 | needsPromotion = false;
|
| 1787 | binOp = spv::OpLogicalAnd;
|
| 1788 | break;
|
| 1789 | case glslang::EOpInclusiveOr:
|
| 1790 | case glslang::EOpInclusiveOrAssign:
|
| 1791 | binOp = spv::OpBitwiseOr;
|
| 1792 | break;
|
| 1793 | case glslang::EOpLogicalOr:
|
| 1794 | needsPromotion = false;
|
| 1795 | binOp = spv::OpLogicalOr;
|
| 1796 | break;
|
| 1797 | case glslang::EOpExclusiveOr:
|
| 1798 | case glslang::EOpExclusiveOrAssign:
|
| 1799 | binOp = spv::OpBitwiseXor;
|
| 1800 | break;
|
| 1801 | case glslang::EOpLogicalXor:
|
| 1802 | needsPromotion = false;
|
| 1803 | binOp = spv::OpLogicalXor;
|
| 1804 | break;
|
| 1805 |
|
| 1806 | case glslang::EOpLessThan:
|
| 1807 | case glslang::EOpGreaterThan:
|
| 1808 | case glslang::EOpLessThanEqual:
|
| 1809 | case glslang::EOpGreaterThanEqual:
|
| 1810 | case glslang::EOpEqual:
|
| 1811 | case glslang::EOpNotEqual:
|
| 1812 | case glslang::EOpVectorEqual:
|
| 1813 | case glslang::EOpVectorNotEqual:
|
| 1814 | comparison = true;
|
| 1815 | break;
|
| 1816 | default:
|
| 1817 | break;
|
| 1818 | }
|
| 1819 |
|
| 1820 | if (binOp != spv::OpNop) {
|
| 1821 | if (builder.isMatrix(left) || builder.isMatrix(right)) {
|
| 1822 | switch (binOp) {
|
| 1823 | case spv::OpMatrixTimesScalar:
|
| 1824 | case spv::OpVectorTimesMatrix:
|
| 1825 | case spv::OpMatrixTimesVector:
|
| 1826 | case spv::OpMatrixTimesMatrix:
|
| 1827 | break;
|
| 1828 | case spv::OpFDiv:
|
| 1829 | // turn it into a multiply...
|
| 1830 | assert(builder.isMatrix(left) && builder.isScalar(right));
|
| 1831 | right = builder.createBinOp(spv::OpFDiv, builder.getTypeId(right), builder.makeFloatConstant(1.0F), right);
|
| 1832 | binOp = spv::OpFMul;
|
| 1833 | break;
|
| 1834 | default:
|
| 1835 | spv::MissingFunctionality("binary operation on matrix");
|
| 1836 | break;
|
| 1837 | }
|
| 1838 |
|
| 1839 | spv::Id id = builder.createBinOp(binOp, typeId, left, right);
|
| 1840 | builder.setPrecision(id, precision);
|
| 1841 |
|
| 1842 | return id;
|
| 1843 | }
|
| 1844 |
|
| 1845 | // No matrix involved; make both operands be the same number of components, if needed
|
| 1846 | if (needsPromotion)
|
| 1847 | builder.promoteScalar(precision, left, right);
|
| 1848 |
|
| 1849 | spv::Id id = builder.createBinOp(binOp, typeId, left, right);
|
| 1850 | builder.setPrecision(id, precision);
|
| 1851 |
|
| 1852 | return id;
|
| 1853 | }
|
| 1854 |
|
| 1855 | if (! comparison)
|
| 1856 | return 0;
|
| 1857 |
|
| 1858 | // Comparison instructions
|
| 1859 |
|
| 1860 | if (reduceComparison && (builder.isVector(left) || builder.isMatrix(left) || builder.isAggregate(left))) {
|
| 1861 | assert(op == glslang::EOpEqual || op == glslang::EOpNotEqual);
|
| 1862 |
|
| 1863 | return builder.createCompare(precision, left, right, op == glslang::EOpEqual);
|
| 1864 | }
|
| 1865 |
|
| 1866 | switch (op) {
|
| 1867 | case glslang::EOpLessThan:
|
| 1868 | if (isFloat)
|
| 1869 | binOp = spv::OpFOrdLessThan;
|
| 1870 | else if (isUnsigned)
|
| 1871 | binOp = spv::OpULessThan;
|
| 1872 | else
|
| 1873 | binOp = spv::OpSLessThan;
|
| 1874 | break;
|
| 1875 | case glslang::EOpGreaterThan:
|
| 1876 | if (isFloat)
|
| 1877 | binOp = spv::OpFOrdGreaterThan;
|
| 1878 | else if (isUnsigned)
|
| 1879 | binOp = spv::OpUGreaterThan;
|
| 1880 | else
|
| 1881 | binOp = spv::OpSGreaterThan;
|
| 1882 | break;
|
| 1883 | case glslang::EOpLessThanEqual:
|
| 1884 | if (isFloat)
|
| 1885 | binOp = spv::OpFOrdLessThanEqual;
|
| 1886 | else if (isUnsigned)
|
| 1887 | binOp = spv::OpULessThanEqual;
|
| 1888 | else
|
| 1889 | binOp = spv::OpSLessThanEqual;
|
| 1890 | break;
|
| 1891 | case glslang::EOpGreaterThanEqual:
|
| 1892 | if (isFloat)
|
| 1893 | binOp = spv::OpFOrdGreaterThanEqual;
|
| 1894 | else if (isUnsigned)
|
| 1895 | binOp = spv::OpUGreaterThanEqual;
|
| 1896 | else
|
| 1897 | binOp = spv::OpSGreaterThanEqual;
|
| 1898 | break;
|
| 1899 | case glslang::EOpEqual:
|
| 1900 | case glslang::EOpVectorEqual:
|
| 1901 | if (isFloat)
|
| 1902 | binOp = spv::OpFOrdEqual;
|
| 1903 | else
|
| 1904 | binOp = spv::OpIEqual;
|
| 1905 | break;
|
| 1906 | case glslang::EOpNotEqual:
|
| 1907 | case glslang::EOpVectorNotEqual:
|
| 1908 | if (isFloat)
|
| 1909 | binOp = spv::OpFOrdNotEqual;
|
| 1910 | else
|
| 1911 | binOp = spv::OpINotEqual;
|
| 1912 | break;
|
| 1913 | default:
|
| 1914 | break;
|
| 1915 | }
|
| 1916 |
|
| 1917 | if (binOp != spv::OpNop) {
|
| 1918 | spv::Id id = builder.createBinOp(binOp, typeId, left, right);
|
| 1919 | builder.setPrecision(id, precision);
|
| 1920 |
|
| 1921 | return id;
|
| 1922 | }
|
| 1923 |
|
| 1924 | return 0;
|
| 1925 | }
|
| 1926 |
|
| 1927 | spv::Id TGlslangToSpvTraverser::createUnaryOperation(glslang::TOperator op, spv::Decoration precision, spv::Id typeId, spv::Id operand, bool isFloat)
|
| 1928 | {
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 1929 | spv::Op unaryOp = spv::OpNop;
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 1930 | int libCall = -1;
|
| 1931 |
|
| 1932 | switch (op) {
|
| 1933 | case glslang::EOpNegative:
|
| 1934 | if (isFloat)
|
| 1935 | unaryOp = spv::OpFNegate;
|
| 1936 | else
|
| 1937 | unaryOp = spv::OpSNegate;
|
| 1938 | break;
|
| 1939 |
|
| 1940 | case glslang::EOpLogicalNot:
|
| 1941 | case glslang::EOpVectorLogicalNot:
|
| 1942 | case glslang::EOpBitwiseNot:
|
| 1943 | unaryOp = spv::OpNot;
|
| 1944 | break;
|
| 1945 |
|
| 1946 | case glslang::EOpDeterminant:
|
| 1947 | libCall = GLSL_STD_450::Determinant;
|
| 1948 | break;
|
| 1949 | case glslang::EOpMatrixInverse:
|
| 1950 | libCall = GLSL_STD_450::MatrixInverse;
|
| 1951 | break;
|
| 1952 | case glslang::EOpTranspose:
|
| 1953 | unaryOp = spv::OpTranspose;
|
| 1954 | break;
|
| 1955 |
|
| 1956 | case glslang::EOpRadians:
|
| 1957 | libCall = GLSL_STD_450::Radians;
|
| 1958 | break;
|
| 1959 | case glslang::EOpDegrees:
|
| 1960 | libCall = GLSL_STD_450::Degrees;
|
| 1961 | break;
|
| 1962 | case glslang::EOpSin:
|
| 1963 | libCall = GLSL_STD_450::Sin;
|
| 1964 | break;
|
| 1965 | case glslang::EOpCos:
|
| 1966 | libCall = GLSL_STD_450::Cos;
|
| 1967 | break;
|
| 1968 | case glslang::EOpTan:
|
| 1969 | libCall = GLSL_STD_450::Tan;
|
| 1970 | break;
|
| 1971 | case glslang::EOpAcos:
|
| 1972 | libCall = GLSL_STD_450::Acos;
|
| 1973 | break;
|
| 1974 | case glslang::EOpAsin:
|
| 1975 | libCall = GLSL_STD_450::Asin;
|
| 1976 | break;
|
| 1977 | case glslang::EOpAtan:
|
| 1978 | libCall = GLSL_STD_450::Atan;
|
| 1979 | break;
|
| 1980 |
|
| 1981 | case glslang::EOpAcosh:
|
| 1982 | libCall = GLSL_STD_450::Acosh;
|
| 1983 | break;
|
| 1984 | case glslang::EOpAsinh:
|
| 1985 | libCall = GLSL_STD_450::Asinh;
|
| 1986 | break;
|
| 1987 | case glslang::EOpAtanh:
|
| 1988 | libCall = GLSL_STD_450::Atanh;
|
| 1989 | break;
|
| 1990 | case glslang::EOpTanh:
|
| 1991 | libCall = GLSL_STD_450::Tanh;
|
| 1992 | break;
|
| 1993 | case glslang::EOpCosh:
|
| 1994 | libCall = GLSL_STD_450::Cosh;
|
| 1995 | break;
|
| 1996 | case glslang::EOpSinh:
|
| 1997 | libCall = GLSL_STD_450::Sinh;
|
| 1998 | break;
|
| 1999 |
|
| 2000 | case glslang::EOpLength:
|
| 2001 | libCall = GLSL_STD_450::Length;
|
| 2002 | break;
|
| 2003 | case glslang::EOpNormalize:
|
| 2004 | libCall = GLSL_STD_450::Normalize;
|
| 2005 | break;
|
| 2006 |
|
| 2007 | case glslang::EOpExp:
|
| 2008 | libCall = GLSL_STD_450::Exp;
|
| 2009 | break;
|
| 2010 | case glslang::EOpLog:
|
| 2011 | libCall = GLSL_STD_450::Log;
|
| 2012 | break;
|
| 2013 | case glslang::EOpExp2:
|
| 2014 | libCall = GLSL_STD_450::Exp2;
|
| 2015 | break;
|
| 2016 | case glslang::EOpLog2:
|
| 2017 | libCall = GLSL_STD_450::Log2;
|
| 2018 | break;
|
| 2019 | case glslang::EOpSqrt:
|
| 2020 | libCall = GLSL_STD_450::Sqrt;
|
| 2021 | break;
|
| 2022 | case glslang::EOpInverseSqrt:
|
| 2023 | libCall = GLSL_STD_450::InverseSqrt;
|
| 2024 | break;
|
| 2025 |
|
| 2026 | case glslang::EOpFloor:
|
| 2027 | libCall = GLSL_STD_450::Floor;
|
| 2028 | break;
|
| 2029 | case glslang::EOpTrunc:
|
| 2030 | libCall = GLSL_STD_450::Trunc;
|
| 2031 | break;
|
| 2032 | case glslang::EOpRound:
|
| 2033 | libCall = GLSL_STD_450::Round;
|
| 2034 | break;
|
| 2035 | case glslang::EOpRoundEven:
|
| 2036 | libCall = GLSL_STD_450::RoundEven;
|
| 2037 | break;
|
| 2038 | case glslang::EOpCeil:
|
| 2039 | libCall = GLSL_STD_450::Ceil;
|
| 2040 | break;
|
| 2041 | case glslang::EOpFract:
|
| 2042 | libCall = GLSL_STD_450::Fract;
|
| 2043 | break;
|
| 2044 |
|
| 2045 | case glslang::EOpIsNan:
|
| 2046 | unaryOp = spv::OpIsNan;
|
| 2047 | break;
|
| 2048 | case glslang::EOpIsInf:
|
| 2049 | unaryOp = spv::OpIsInf;
|
| 2050 | break;
|
| 2051 |
|
| 2052 | case glslang::EOpFloatBitsToInt:
|
| 2053 | libCall = GLSL_STD_450::FloatBitsToInt;
|
| 2054 | break;
|
| 2055 | case glslang::EOpFloatBitsToUint:
|
| 2056 | libCall = GLSL_STD_450::FloatBitsToUint;
|
| 2057 | break;
|
| 2058 | case glslang::EOpIntBitsToFloat:
|
| 2059 | libCall = GLSL_STD_450::IntBitsToFloat;
|
| 2060 | break;
|
| 2061 | case glslang::EOpUintBitsToFloat:
|
| 2062 | libCall = GLSL_STD_450::UintBitsToFloat;
|
| 2063 | break;
|
| 2064 | case glslang::EOpPackSnorm2x16:
|
| 2065 | libCall = GLSL_STD_450::PackSnorm2x16;
|
| 2066 | break;
|
| 2067 | case glslang::EOpUnpackSnorm2x16:
|
| 2068 | libCall = GLSL_STD_450::UnpackSnorm2x16;
|
| 2069 | break;
|
| 2070 | case glslang::EOpPackUnorm2x16:
|
| 2071 | libCall = GLSL_STD_450::PackUnorm2x16;
|
| 2072 | break;
|
| 2073 | case glslang::EOpUnpackUnorm2x16:
|
| 2074 | libCall = GLSL_STD_450::UnpackUnorm2x16;
|
| 2075 | break;
|
| 2076 | case glslang::EOpPackHalf2x16:
|
| 2077 | libCall = GLSL_STD_450::PackHalf2x16;
|
| 2078 | break;
|
| 2079 | case glslang::EOpUnpackHalf2x16:
|
| 2080 | libCall = GLSL_STD_450::UnpackHalf2x16;
|
| 2081 | break;
|
| 2082 |
|
| 2083 | case glslang::EOpDPdx:
|
| 2084 | unaryOp = spv::OpDPdx;
|
| 2085 | break;
|
| 2086 | case glslang::EOpDPdy:
|
| 2087 | unaryOp = spv::OpDPdy;
|
| 2088 | break;
|
| 2089 | case glslang::EOpFwidth:
|
| 2090 | unaryOp = spv::OpFwidth;
|
| 2091 | break;
|
| 2092 | case glslang::EOpDPdxFine:
|
| 2093 | unaryOp = spv::OpDPdxFine;
|
| 2094 | break;
|
| 2095 | case glslang::EOpDPdyFine:
|
| 2096 | unaryOp = spv::OpDPdyFine;
|
| 2097 | break;
|
| 2098 | case glslang::EOpFwidthFine:
|
| 2099 | unaryOp = spv::OpFwidthFine;
|
| 2100 | break;
|
| 2101 | case glslang::EOpDPdxCoarse:
|
| 2102 | unaryOp = spv::OpDPdxCoarse;
|
| 2103 | break;
|
| 2104 | case glslang::EOpDPdyCoarse:
|
| 2105 | unaryOp = spv::OpDPdyCoarse;
|
| 2106 | break;
|
| 2107 | case glslang::EOpFwidthCoarse:
|
| 2108 | unaryOp = spv::OpFwidthCoarse;
|
| 2109 | break;
|
| 2110 |
|
| 2111 | case glslang::EOpAny:
|
| 2112 | unaryOp = spv::OpAny;
|
| 2113 | break;
|
| 2114 | case glslang::EOpAll:
|
| 2115 | unaryOp = spv::OpAll;
|
| 2116 | break;
|
| 2117 |
|
| 2118 | case glslang::EOpAbs:
|
| 2119 | libCall = GLSL_STD_450::Abs;
|
| 2120 | break;
|
| 2121 | case glslang::EOpSign:
|
| 2122 | libCall = GLSL_STD_450::Sign;
|
| 2123 | break;
|
| 2124 |
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2125 | default:
|
| 2126 | return 0;
|
| 2127 | }
|
| 2128 |
|
| 2129 | spv::Id id;
|
| 2130 | if (libCall >= 0) {
|
| 2131 | std::vector<spv::Id> args;
|
| 2132 | args.push_back(operand);
|
| 2133 | id = builder.createBuiltinCall(precision, typeId, stdBuiltins, libCall, args);
|
| 2134 | } else
|
| 2135 | id = builder.createUnaryOp(unaryOp, typeId, operand);
|
| 2136 |
|
| 2137 | builder.setPrecision(id, precision);
|
| 2138 |
|
| 2139 | return id;
|
| 2140 | }
|
| 2141 |
|
| 2142 | spv::Id TGlslangToSpvTraverser::createConversion(glslang::TOperator op, spv::Decoration precision, spv::Id destType, spv::Id operand)
|
| 2143 | {
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2144 | spv::Op convOp = spv::OpNop;
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2145 | spv::Id zero;
|
| 2146 | spv::Id one;
|
| 2147 |
|
| 2148 | int vectorSize = builder.isVectorType(destType) ? builder.getNumTypeComponents(destType) : 0;
|
| 2149 |
|
| 2150 | switch (op) {
|
| 2151 | case glslang::EOpConvIntToBool:
|
| 2152 | case glslang::EOpConvUintToBool:
|
| 2153 | zero = builder.makeUintConstant(0);
|
| 2154 | zero = makeSmearedConstant(zero, vectorSize);
|
| 2155 | return builder.createBinOp(spv::OpINotEqual, destType, operand, zero);
|
| 2156 |
|
| 2157 | case glslang::EOpConvFloatToBool:
|
| 2158 | zero = builder.makeFloatConstant(0.0F);
|
| 2159 | zero = makeSmearedConstant(zero, vectorSize);
|
| 2160 | return builder.createBinOp(spv::OpFOrdNotEqual, destType, operand, zero);
|
| 2161 |
|
| 2162 | case glslang::EOpConvDoubleToBool:
|
| 2163 | zero = builder.makeDoubleConstant(0.0);
|
| 2164 | zero = makeSmearedConstant(zero, vectorSize);
|
| 2165 | return builder.createBinOp(spv::OpFOrdNotEqual, destType, operand, zero);
|
| 2166 |
|
| 2167 | case glslang::EOpConvBoolToFloat:
|
| 2168 | convOp = spv::OpSelect;
|
| 2169 | zero = builder.makeFloatConstant(0.0);
|
| 2170 | one = builder.makeFloatConstant(1.0);
|
| 2171 | break;
|
| 2172 | case glslang::EOpConvBoolToDouble:
|
| 2173 | convOp = spv::OpSelect;
|
| 2174 | zero = builder.makeDoubleConstant(0.0);
|
| 2175 | one = builder.makeDoubleConstant(1.0);
|
| 2176 | break;
|
| 2177 | case glslang::EOpConvBoolToInt:
|
| 2178 | zero = builder.makeIntConstant(0);
|
| 2179 | one = builder.makeIntConstant(1);
|
| 2180 | convOp = spv::OpSelect;
|
| 2181 | break;
|
| 2182 | case glslang::EOpConvBoolToUint:
|
| 2183 | zero = builder.makeUintConstant(0);
|
| 2184 | one = builder.makeUintConstant(1);
|
| 2185 | convOp = spv::OpSelect;
|
| 2186 | break;
|
| 2187 |
|
| 2188 | case glslang::EOpConvIntToFloat:
|
| 2189 | case glslang::EOpConvIntToDouble:
|
| 2190 | convOp = spv::OpConvertSToF;
|
| 2191 | break;
|
| 2192 |
|
| 2193 | case glslang::EOpConvUintToFloat:
|
| 2194 | case glslang::EOpConvUintToDouble:
|
| 2195 | convOp = spv::OpConvertUToF;
|
| 2196 | break;
|
| 2197 |
|
| 2198 | case glslang::EOpConvDoubleToFloat:
|
| 2199 | case glslang::EOpConvFloatToDouble:
|
| 2200 | convOp = spv::OpFConvert;
|
| 2201 | break;
|
| 2202 |
|
| 2203 | case glslang::EOpConvFloatToInt:
|
| 2204 | case glslang::EOpConvDoubleToInt:
|
| 2205 | convOp = spv::OpConvertFToS;
|
| 2206 | break;
|
| 2207 |
|
| 2208 | case glslang::EOpConvUintToInt:
|
| 2209 | case glslang::EOpConvIntToUint:
|
| 2210 | convOp = spv::OpBitcast;
|
| 2211 | break;
|
| 2212 |
|
| 2213 | case glslang::EOpConvFloatToUint:
|
| 2214 | case glslang::EOpConvDoubleToUint:
|
| 2215 | convOp = spv::OpConvertFToU;
|
| 2216 | break;
|
| 2217 | default:
|
| 2218 | break;
|
| 2219 | }
|
| 2220 |
|
| 2221 | spv::Id result = 0;
|
| 2222 | if (convOp == spv::OpNop)
|
| 2223 | return result;
|
| 2224 |
|
| 2225 | if (convOp == spv::OpSelect) {
|
| 2226 | zero = makeSmearedConstant(zero, vectorSize);
|
| 2227 | one = makeSmearedConstant(one, vectorSize);
|
| 2228 | result = builder.createTriOp(convOp, destType, operand, one, zero);
|
| 2229 | } else
|
| 2230 | result = builder.createUnaryOp(convOp, destType, operand);
|
| 2231 |
|
| 2232 | builder.setPrecision(result, precision);
|
| 2233 |
|
| 2234 | return result;
|
| 2235 | }
|
| 2236 |
|
| 2237 | spv::Id TGlslangToSpvTraverser::makeSmearedConstant(spv::Id constant, int vectorSize)
|
| 2238 | {
|
| 2239 | if (vectorSize == 0)
|
| 2240 | return constant;
|
| 2241 |
|
| 2242 | spv::Id vectorTypeId = builder.makeVectorType(builder.getTypeId(constant), vectorSize);
|
| 2243 | std::vector<spv::Id> components;
|
| 2244 | for (int c = 0; c < vectorSize; ++c)
|
| 2245 | components.push_back(constant);
|
| 2246 | return builder.makeCompositeConstant(vectorTypeId, components);
|
| 2247 | }
|
| 2248 |
|
| 2249 | spv::Id TGlslangToSpvTraverser::createMiscOperation(glslang::TOperator op, spv::Decoration precision, spv::Id typeId, std::vector<spv::Id>& operands, bool isUnsigned)
|
| 2250 | {
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2251 | spv::Op opCode = spv::OpNop;
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2252 | int libCall = -1;
|
| 2253 |
|
| 2254 | switch (op) {
|
| 2255 | case glslang::EOpMin:
|
| 2256 | libCall = GLSL_STD_450::Min;
|
| 2257 | break;
|
| 2258 | case glslang::EOpModf:
|
| 2259 | libCall = GLSL_STD_450::Modf;
|
| 2260 | break;
|
| 2261 | case glslang::EOpMax:
|
| 2262 | libCall = GLSL_STD_450::Max;
|
| 2263 | break;
|
| 2264 | case glslang::EOpPow:
|
| 2265 | libCall = GLSL_STD_450::Pow;
|
| 2266 | break;
|
| 2267 | case glslang::EOpDot:
|
| 2268 | opCode = spv::OpDot;
|
| 2269 | break;
|
| 2270 | case glslang::EOpAtan:
|
| 2271 | libCall = GLSL_STD_450::Atan2;
|
| 2272 | break;
|
| 2273 |
|
| 2274 | case glslang::EOpClamp:
|
| 2275 | libCall = GLSL_STD_450::Clamp;
|
| 2276 | break;
|
| 2277 | case glslang::EOpMix:
|
| 2278 | libCall = GLSL_STD_450::Mix;
|
| 2279 | break;
|
| 2280 | case glslang::EOpStep:
|
| 2281 | libCall = GLSL_STD_450::Step;
|
| 2282 | break;
|
| 2283 | case glslang::EOpSmoothStep:
|
| 2284 | libCall = GLSL_STD_450::SmoothStep;
|
| 2285 | break;
|
| 2286 |
|
| 2287 | case glslang::EOpDistance:
|
| 2288 | libCall = GLSL_STD_450::Distance;
|
| 2289 | break;
|
| 2290 | case glslang::EOpCross:
|
| 2291 | libCall = GLSL_STD_450::Cross;
|
| 2292 | break;
|
| 2293 | case glslang::EOpFaceForward:
|
| 2294 | libCall = GLSL_STD_450::FaceForward;
|
| 2295 | break;
|
| 2296 | case glslang::EOpReflect:
|
| 2297 | libCall = GLSL_STD_450::Reflect;
|
| 2298 | break;
|
| 2299 | case glslang::EOpRefract:
|
| 2300 | libCall = GLSL_STD_450::Refract;
|
| 2301 | break;
|
| 2302 | default:
|
| 2303 | return 0;
|
| 2304 | }
|
| 2305 |
|
| 2306 | spv::Id id = 0;
|
| 2307 | if (libCall >= 0)
|
| 2308 | id = builder.createBuiltinCall(precision, typeId, stdBuiltins, libCall, operands);
|
| 2309 | else {
|
| 2310 | switch (operands.size()) {
|
| 2311 | case 0:
|
John Kessenich | 1f77cac | 2015-03-24 00:32:50 +0000 | [diff] [blame] | 2312 | // should all be handled by visitAggregate and createNoArgOperation
|
| 2313 | assert(0);
|
| 2314 | return 0;
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2315 | case 1:
|
| 2316 | // should all be handled by createUnaryOperation
|
| 2317 | assert(0);
|
John Kessenich | 1f77cac | 2015-03-24 00:32:50 +0000 | [diff] [blame] | 2318 | return 0;
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2319 | case 2:
|
| 2320 | id = builder.createBinOp(opCode, typeId, operands[0], operands[1]);
|
| 2321 | break;
|
| 2322 | case 3:
|
| 2323 | id = builder.createTernaryOp(opCode, typeId, operands[0], operands[1], operands[2]);
|
| 2324 | break;
|
| 2325 | default:
|
| 2326 | // These do not exist yet
|
| 2327 | assert(0 && "operation with more than 3 operands");
|
| 2328 | break;
|
| 2329 | }
|
| 2330 | }
|
| 2331 |
|
| 2332 | builder.setPrecision(id, precision);
|
| 2333 |
|
| 2334 | return id;
|
| 2335 | }
|
| 2336 |
|
| 2337 | // Intrinsics with no arguments, no return value, and no precision.
|
| 2338 | spv::Id TGlslangToSpvTraverser::createNoArgOperation(glslang::TOperator op)
|
| 2339 | {
|
| 2340 | // TODO: get the barrier operands correct
|
| 2341 |
|
| 2342 | switch (op) {
|
| 2343 | case glslang::EOpEmitVertex:
|
John Kessenich | 1f77cac | 2015-03-24 00:32:50 +0000 | [diff] [blame] | 2344 | builder.createNoResultOp(spv::OpEmitVertex);
|
| 2345 | return 0;
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2346 | case glslang::EOpEndPrimitive:
|
John Kessenich | 1f77cac | 2015-03-24 00:32:50 +0000 | [diff] [blame] | 2347 | builder.createNoResultOp(spv::OpEndPrimitive);
|
| 2348 | return 0;
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2349 | case glslang::EOpBarrier:
|
| 2350 | builder.createMemoryBarrier(spv::ExecutionScopeDevice, spv::MemorySemanticsAllMemory);
|
| 2351 | builder.createControlBarrier(spv::ExecutionScopeDevice);
|
| 2352 | return 0;
|
| 2353 | case glslang::EOpMemoryBarrier:
|
| 2354 | builder.createMemoryBarrier(spv::ExecutionScopeDevice, spv::MemorySemanticsAllMemory);
|
| 2355 | return 0;
|
| 2356 | case glslang::EOpMemoryBarrierAtomicCounter:
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2357 | builder.createMemoryBarrier(spv::ExecutionScopeDevice, spv::MemorySemanticsAtomicCounterMemoryMask);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2358 | return 0;
|
| 2359 | case glslang::EOpMemoryBarrierBuffer:
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2360 | builder.createMemoryBarrier(spv::ExecutionScopeDevice, spv::MemorySemanticsUniformMemoryMask);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2361 | return 0;
|
| 2362 | case glslang::EOpMemoryBarrierImage:
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2363 | builder.createMemoryBarrier(spv::ExecutionScopeDevice, spv::MemorySemanticsImageMemoryMask);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2364 | return 0;
|
| 2365 | case glslang::EOpMemoryBarrierShared:
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2366 | builder.createMemoryBarrier(spv::ExecutionScopeDevice, spv::MemorySemanticsWorkgroupLocalMemoryMask);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2367 | return 0;
|
| 2368 | case glslang::EOpGroupMemoryBarrier:
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2369 | builder.createMemoryBarrier(spv::ExecutionScopeDevice, spv::MemorySemanticsWorkgroupGlobalMemoryMask);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2370 | return 0;
|
| 2371 | default:
|
| 2372 | spv::MissingFunctionality("operation with no arguments");
|
| 2373 | return 0;
|
| 2374 | }
|
| 2375 | }
|
| 2376 |
|
| 2377 | spv::Id TGlslangToSpvTraverser::getSymbolId(const glslang::TIntermSymbol* symbol)
|
| 2378 | {
|
| 2379 | std::map<int, spv::Id>::iterator iter;
|
| 2380 | iter = symbolValues.find(symbol->getId());
|
| 2381 | spv::Id id;
|
| 2382 | if (symbolValues.end() != iter) {
|
| 2383 | id = iter->second;
|
| 2384 | return id;
|
| 2385 | }
|
| 2386 |
|
| 2387 | // it was not found, create it
|
| 2388 | id = createSpvVariable(symbol);
|
| 2389 | symbolValues[symbol->getId()] = id;
|
| 2390 |
|
| 2391 | if (! symbol->getType().isStruct()) {
|
| 2392 | addDecoration(id, TranslatePrecisionDecoration(symbol->getType()));
|
| 2393 | addDecoration(id, TranslateInterpolationDecoration(symbol->getType()));
|
| 2394 | if (symbol->getQualifier().hasLocation())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2395 | builder.addDecoration(id, spv::DecorationLocation, symbol->getQualifier().layoutLocation);
|
John Kessenich | bcef333 | 2015-04-27 10:03:25 +0000 | [diff] [blame] | 2396 | if (symbol->getQualifier().hasIndex())
|
| 2397 | builder.addDecoration(id, spv::DecorationIndex, symbol->getQualifier().layoutIndex);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2398 | if (symbol->getQualifier().hasComponent())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2399 | builder.addDecoration(id, spv::DecorationComponent, symbol->getQualifier().layoutComponent);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2400 | if (glslangIntermediate->getXfbMode()) {
|
| 2401 | if (symbol->getQualifier().hasXfbStride())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2402 | builder.addDecoration(id, spv::DecorationStride, symbol->getQualifier().layoutXfbStride);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2403 | if (symbol->getQualifier().hasXfbBuffer())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2404 | builder.addDecoration(id, spv::DecorationXfbBuffer, symbol->getQualifier().layoutXfbBuffer);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2405 | if (symbol->getQualifier().hasXfbOffset())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2406 | builder.addDecoration(id, spv::DecorationOffset, symbol->getQualifier().layoutXfbOffset);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2407 | }
|
| 2408 | }
|
| 2409 |
|
| 2410 | addDecoration(id, TranslateInvariantDecoration(symbol->getType()));
|
| 2411 | if (symbol->getQualifier().hasStream())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2412 | builder.addDecoration(id, spv::DecorationStream, symbol->getQualifier().layoutStream);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2413 | if (symbol->getQualifier().hasSet())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2414 | builder.addDecoration(id, spv::DecorationDescriptorSet, symbol->getQualifier().layoutSet);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2415 | if (symbol->getQualifier().hasBinding())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2416 | builder.addDecoration(id, spv::DecorationBinding, symbol->getQualifier().layoutBinding);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2417 | if (glslangIntermediate->getXfbMode()) {
|
| 2418 | if (symbol->getQualifier().hasXfbStride())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2419 | builder.addDecoration(id, spv::DecorationStride, symbol->getQualifier().layoutXfbStride);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2420 | if (symbol->getQualifier().hasXfbBuffer())
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2421 | builder.addDecoration(id, spv::DecorationXfbBuffer, symbol->getQualifier().layoutXfbBuffer);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2422 | }
|
| 2423 |
|
| 2424 | // built-in variable decorations
|
| 2425 | int num = TranslateBuiltInDecoration(*symbol);
|
John Kessenich | 9a33994 | 2015-04-01 20:35:23 +0000 | [diff] [blame] | 2426 | if (num != spv::BadValue)
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2427 | builder.addDecoration(id, spv::DecorationBuiltIn, num);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2428 |
|
| 2429 | if (linkageOnly)
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2430 | builder.addDecoration(id, spv::DecorationNoStaticUse);
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2431 |
|
| 2432 | return id;
|
| 2433 | }
|
| 2434 |
|
| 2435 | void TGlslangToSpvTraverser::addDecoration(spv::Id id, spv::Decoration dec)
|
| 2436 | {
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2437 | if (dec != spv::BadValue)
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2438 | builder.addDecoration(id, dec);
|
| 2439 | }
|
| 2440 |
|
| 2441 | void TGlslangToSpvTraverser::addMemberDecoration(spv::Id id, int member, spv::Decoration dec)
|
| 2442 | {
|
John Kessenich | b40d6ac | 2015-03-30 17:41:16 +0000 | [diff] [blame] | 2443 | if (dec != spv::BadValue)
|
John Kessenich | 0df0cde | 2015-03-03 17:09:43 +0000 | [diff] [blame] | 2444 | builder.addMemberDecoration(id, (unsigned)member, dec);
|
| 2445 | }
|
| 2446 |
|
| 2447 | // Use 'consts' as the flattened glslang source of scalar constants to recursively
|
| 2448 | // build the aggregate SPIR-V constant.
|
| 2449 | //
|
| 2450 | // If there are not enough elements present in 'consts', 0 will be substituted;
|
| 2451 | // an empty 'consts' can be used to create a fully zeroed SPIR-V constant.
|
| 2452 | //
|
| 2453 | spv::Id TGlslangToSpvTraverser::createSpvConstant(const glslang::TType& glslangType, const glslang::TConstUnionArray& consts, int& nextConst)
|
| 2454 | {
|
| 2455 | // vector of constants for SPIR-V
|
| 2456 | std::vector<spv::Id> spvConsts;
|
| 2457 |
|
| 2458 | // Type is used for struct and array constants
|
| 2459 | spv::Id typeId = convertGlslangToSpvType(glslangType);
|
| 2460 |
|
| 2461 | if (glslangType.isArray()) {
|
| 2462 | glslang::TType elementType;
|
| 2463 | elementType.shallowCopy(glslangType); // TODO: desktop arrays of arrays functionality will need a deeper copy to avoid modifying the original
|
| 2464 | elementType.dereference();
|
| 2465 | for (int i = 0; i < glslangType.getArraySize(); ++i)
|
| 2466 | spvConsts.push_back(createSpvConstant(elementType, consts, nextConst));
|
| 2467 | } else if (glslangType.isMatrix()) {
|
| 2468 | glslang::TType vectorType;
|
| 2469 | vectorType.shallowCopy(glslangType);
|
| 2470 | vectorType.dereference();
|
| 2471 | for (int col = 0; col < glslangType.getMatrixCols(); ++col)
|
| 2472 | spvConsts.push_back(createSpvConstant(vectorType, consts, nextConst));
|
| 2473 | } else if (glslangType.getStruct()) {
|
| 2474 | glslang::TVector<glslang::TTypeLoc>::const_iterator iter;
|
| 2475 | for (iter = glslangType.getStruct()->begin(); iter != glslangType.getStruct()->end(); ++iter)
|
| 2476 | spvConsts.push_back(createSpvConstant(*iter->type, consts, nextConst));
|
| 2477 | } else if (glslangType.isVector()) {
|
| 2478 | for (unsigned int i = 0; i < (unsigned int)glslangType.getVectorSize(); ++i) {
|
| 2479 | bool zero = nextConst >= consts.size();
|
| 2480 | switch (glslangType.getBasicType()) {
|
| 2481 | case glslang::EbtInt:
|
| 2482 | spvConsts.push_back(builder.makeIntConstant(zero ? 0 : consts[nextConst].getIConst()));
|
| 2483 | break;
|
| 2484 | case glslang::EbtUint:
|
| 2485 | spvConsts.push_back(builder.makeUintConstant(zero ? 0 : consts[nextConst].getUConst()));
|
| 2486 | break;
|
| 2487 | case glslang::EbtFloat:
|
| 2488 | spvConsts.push_back(builder.makeFloatConstant(zero ? 0.0F : (float)consts[nextConst].getDConst()));
|
| 2489 | break;
|
| 2490 | case glslang::EbtDouble:
|
| 2491 | spvConsts.push_back(builder.makeDoubleConstant(zero ? 0.0 : consts[nextConst].getDConst()));
|
| 2492 | break;
|
| 2493 | case glslang::EbtBool:
|
| 2494 | spvConsts.push_back(builder.makeBoolConstant(zero ? false : consts[nextConst].getBConst()));
|
| 2495 | break;
|
| 2496 | default:
|
| 2497 | spv::MissingFunctionality("constant vector type");
|
| 2498 | break;
|
| 2499 | }
|
| 2500 | ++nextConst;
|
| 2501 | }
|
| 2502 | } else {
|
| 2503 | // we have a non-aggregate (scalar) constant
|
| 2504 | bool zero = nextConst >= consts.size();
|
| 2505 | spv::Id scalar;
|
| 2506 | switch (glslangType.getBasicType()) {
|
| 2507 | case glslang::EbtInt:
|
| 2508 | scalar = builder.makeIntConstant(zero ? 0 : consts[nextConst].getIConst());
|
| 2509 | break;
|
| 2510 | case glslang::EbtUint:
|
| 2511 | scalar = builder.makeUintConstant(zero ? 0 : consts[nextConst].getUConst());
|
| 2512 | break;
|
| 2513 | case glslang::EbtFloat:
|
| 2514 | scalar = builder.makeFloatConstant(zero ? 0.0F : (float)consts[nextConst].getDConst());
|
| 2515 | break;
|
| 2516 | case glslang::EbtDouble:
|
| 2517 | scalar = builder.makeDoubleConstant(zero ? 0.0 : consts[nextConst].getDConst());
|
| 2518 | break;
|
| 2519 | case glslang::EbtBool:
|
| 2520 | scalar = builder.makeBoolConstant(zero ? false : consts[nextConst].getBConst());
|
| 2521 | break;
|
| 2522 | default:
|
| 2523 | spv::MissingFunctionality("constant scalar type");
|
| 2524 | break;
|
| 2525 | }
|
| 2526 | ++nextConst;
|
| 2527 | return scalar;
|
| 2528 | }
|
| 2529 |
|
| 2530 | return builder.makeCompositeConstant(typeId, spvConsts);
|
| 2531 | }
|
| 2532 |
|
| 2533 | }; // end anonymous namespace
|
| 2534 |
|
| 2535 | namespace glslang {
|
| 2536 |
|
| 2537 | // Write SPIR-V out to a binary file
|
| 2538 | void OutputSpv(const std::vector<unsigned int>& spirv, const char* baseName)
|
| 2539 | {
|
| 2540 | std::ofstream out;
|
| 2541 | std::string fileName(baseName);
|
| 2542 | fileName.append(".spv");
|
| 2543 | out.open(fileName.c_str(), std::ios::binary | std::ios::out);
|
| 2544 | for (int i = 0; i < (int)spirv.size(); ++i) {
|
| 2545 | unsigned int word = spirv[i];
|
| 2546 | out.write((const char*)&word, 4);
|
| 2547 | }
|
| 2548 | out.close();
|
| 2549 | }
|
| 2550 |
|
| 2551 | //
|
| 2552 | // Set up the glslang traversal
|
| 2553 | //
|
| 2554 | void GlslangToSpv(const glslang::TIntermediate& intermediate, std::vector<unsigned int>& spirv)
|
| 2555 | {
|
| 2556 | TIntermNode* root = intermediate.getTreeRoot();
|
| 2557 |
|
| 2558 | if (root == 0)
|
| 2559 | return;
|
| 2560 |
|
| 2561 | glslang::GetThreadPoolAllocator().push();
|
| 2562 |
|
| 2563 | TGlslangToSpvTraverser it(&intermediate);
|
| 2564 |
|
| 2565 | root->traverse(&it);
|
| 2566 |
|
| 2567 | it.dumpSpv(spirv);
|
| 2568 |
|
| 2569 | glslang::GetThreadPoolAllocator().pop();
|
| 2570 | }
|
| 2571 |
|
| 2572 | }; // end namespace glslang
|