1832 lines
66 KiB
C++
1832 lines
66 KiB
C++
//
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// Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
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// Copyright (C) 2013-2016 LunarG, Inc.
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// Copyright (C) 2015-2016 Google, Inc.
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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//
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// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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// COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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//
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// Implement the top-level of interface to the compiler/linker,
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// as defined in ShaderLang.h
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// This is the platform independent interface between an OGL driver
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// and the shading language compiler/linker.
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//
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#include <cstring>
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#include <iostream>
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#include <sstream>
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#include <memory>
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#include "SymbolTable.h"
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#include "ParseHelper.h"
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#include "Scan.h"
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#include "ScanContext.h"
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#ifdef ENABLE_HLSL
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#include "../../hlsl/hlslParseHelper.h"
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#include "../../hlsl/hlslParseables.h"
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#include "../../hlsl/hlslScanContext.h"
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#endif
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#include "../Include/ShHandle.h"
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#include "../../OGLCompilersDLL/InitializeDll.h"
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#include "preprocessor/PpContext.h"
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#define SH_EXPORTING
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#include "../Public/ShaderLang.h"
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#include "reflection.h"
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#include "iomapper.h"
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#include "Initialize.h"
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namespace { // anonymous namespace for file-local functions and symbols
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using namespace glslang;
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// Create a language specific version of parseables.
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TBuiltInParseables* CreateBuiltInParseables(TInfoSink& infoSink, EShSource source)
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{
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switch (source) {
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case EShSourceGlsl: return new TBuiltIns(); // GLSL builtIns
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#ifdef ENABLE_HLSL
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case EShSourceHlsl: return new TBuiltInParseablesHlsl(); // HLSL intrinsics
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#endif
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default:
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infoSink.info.message(EPrefixInternalError, "Unable to determine source language");
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return nullptr;
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}
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}
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// Create a language specific version of a parse context.
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TParseContextBase* CreateParseContext(TSymbolTable& symbolTable, TIntermediate& intermediate,
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int version, EProfile profile, EShSource source,
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EShLanguage language, TInfoSink& infoSink,
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SpvVersion spvVersion, bool forwardCompatible, EShMessages messages,
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bool parsingBuiltIns, const std::string sourceEntryPointName = "")
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{
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#ifndef ENABLE_HLSL
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(void)sourceEntryPointName; // Unused argument.
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#endif
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switch (source) {
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case EShSourceGlsl:
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intermediate.setEntryPointName("main");
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return new TParseContext(symbolTable, intermediate, parsingBuiltIns, version, profile, spvVersion,
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language, infoSink, forwardCompatible, messages);
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#ifdef ENABLE_HLSL
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case EShSourceHlsl:
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return new HlslParseContext(symbolTable, intermediate, parsingBuiltIns, version, profile, spvVersion,
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language, infoSink, sourceEntryPointName.c_str(), forwardCompatible, messages);
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#endif
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default:
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infoSink.info.message(EPrefixInternalError, "Unable to determine source language");
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return nullptr;
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}
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}
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// Local mapping functions for making arrays of symbol tables....
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const int VersionCount = 15; // index range in MapVersionToIndex
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int MapVersionToIndex(int version)
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{
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int index = 0;
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switch (version) {
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case 100: index = 0; break;
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case 110: index = 1; break;
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case 120: index = 2; break;
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case 130: index = 3; break;
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case 140: index = 4; break;
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case 150: index = 5; break;
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case 300: index = 6; break;
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case 330: index = 7; break;
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case 400: index = 8; break;
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case 410: index = 9; break;
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case 420: index = 10; break;
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case 430: index = 11; break;
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case 440: index = 12; break;
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case 310: index = 13; break;
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case 450: index = 14; break;
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default: break;
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}
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assert(index < VersionCount);
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return index;
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}
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const int SpvVersionCount = 3; // index range in MapSpvVersionToIndex
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int MapSpvVersionToIndex(const SpvVersion& spvVersion)
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{
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int index = 0;
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if (spvVersion.openGl > 0)
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index = 1;
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else if (spvVersion.vulkan > 0)
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index = 2;
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assert(index < SpvVersionCount);
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return index;
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}
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const int ProfileCount = 4; // index range in MapProfileToIndex
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int MapProfileToIndex(EProfile profile)
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{
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int index = 0;
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switch (profile) {
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case ENoProfile: index = 0; break;
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case ECoreProfile: index = 1; break;
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case ECompatibilityProfile: index = 2; break;
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case EEsProfile: index = 3; break;
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default: break;
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}
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assert(index < ProfileCount);
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return index;
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}
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const int SourceCount = 2;
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int MapSourceToIndex(EShSource source)
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{
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int index = 0;
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switch (source) {
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case EShSourceGlsl: index = 0; break;
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case EShSourceHlsl: index = 1; break;
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default: break;
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}
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assert(index < SourceCount);
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return index;
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}
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// only one of these needed for non-ES; ES needs 2 for different precision defaults of built-ins
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enum EPrecisionClass {
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EPcGeneral,
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EPcFragment,
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EPcCount
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};
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// A process-global symbol table per version per profile for built-ins common
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// to multiple stages (languages), and a process-global symbol table per version
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// per profile per stage for built-ins unique to each stage. They will be sparsely
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// populated, so they will only be generated as needed.
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//
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// Each has a different set of built-ins, and we want to preserve that from
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// compile to compile.
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//
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TSymbolTable* CommonSymbolTable[VersionCount][SpvVersionCount][ProfileCount][SourceCount][EPcCount] = {};
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TSymbolTable* SharedSymbolTables[VersionCount][SpvVersionCount][ProfileCount][SourceCount][EShLangCount] = {};
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TPoolAllocator* PerProcessGPA = 0;
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//
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// Parse and add to the given symbol table the content of the given shader string.
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//
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bool InitializeSymbolTable(const TString& builtIns, int version, EProfile profile, const SpvVersion& spvVersion, EShLanguage language,
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EShSource source, TInfoSink& infoSink, TSymbolTable& symbolTable)
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{
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TIntermediate intermediate(language, version, profile);
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intermediate.setSource(source);
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std::unique_ptr<TParseContextBase> parseContext(CreateParseContext(symbolTable, intermediate, version, profile, source,
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language, infoSink, spvVersion, true, EShMsgDefault,
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true));
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TShader::ForbidIncluder includer;
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TPpContext ppContext(*parseContext, "", includer);
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TScanContext scanContext(*parseContext);
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parseContext->setScanContext(&scanContext);
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parseContext->setPpContext(&ppContext);
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//
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// Push the symbol table to give it an initial scope. This
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// push should not have a corresponding pop, so that built-ins
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// are preserved, and the test for an empty table fails.
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//
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symbolTable.push();
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const char* builtInShaders[2];
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size_t builtInLengths[2];
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builtInShaders[0] = builtIns.c_str();
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builtInLengths[0] = builtIns.size();
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if (builtInLengths[0] == 0)
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return true;
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TInputScanner input(1, builtInShaders, builtInLengths);
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if (! parseContext->parseShaderStrings(ppContext, input) != 0) {
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infoSink.info.message(EPrefixInternalError, "Unable to parse built-ins");
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printf("Unable to parse built-ins\n%s\n", infoSink.info.c_str());
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printf("%s\n", builtInShaders[0]);
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return false;
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}
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return true;
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}
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int CommonIndex(EProfile profile, EShLanguage language)
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{
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return (profile == EEsProfile && language == EShLangFragment) ? EPcFragment : EPcGeneral;
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}
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//
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// To initialize per-stage shared tables, with the common table already complete.
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//
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void InitializeStageSymbolTable(TBuiltInParseables& builtInParseables, int version, EProfile profile, const SpvVersion& spvVersion,
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EShLanguage language, EShSource source, TInfoSink& infoSink, TSymbolTable** commonTable,
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TSymbolTable** symbolTables)
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{
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(*symbolTables[language]).adoptLevels(*commonTable[CommonIndex(profile, language)]);
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InitializeSymbolTable(builtInParseables.getStageString(language), version, profile, spvVersion, language, source,
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infoSink, *symbolTables[language]);
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builtInParseables.identifyBuiltIns(version, profile, spvVersion, language, *symbolTables[language]);
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if (profile == EEsProfile && version >= 300)
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(*symbolTables[language]).setNoBuiltInRedeclarations();
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if (version == 110)
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(*symbolTables[language]).setSeparateNameSpaces();
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}
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//
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// Initialize the full set of shareable symbol tables;
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// The common (cross-stage) and those shareable per-stage.
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//
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bool InitializeSymbolTables(TInfoSink& infoSink, TSymbolTable** commonTable, TSymbolTable** symbolTables, int version, EProfile profile, const SpvVersion& spvVersion, EShSource source)
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{
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std::unique_ptr<TBuiltInParseables> builtInParseables(CreateBuiltInParseables(infoSink, source));
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if (builtInParseables == nullptr)
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return false;
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builtInParseables->initialize(version, profile, spvVersion);
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// do the common tables
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InitializeSymbolTable(builtInParseables->getCommonString(), version, profile, spvVersion, EShLangVertex, source,
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infoSink, *commonTable[EPcGeneral]);
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if (profile == EEsProfile)
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InitializeSymbolTable(builtInParseables->getCommonString(), version, profile, spvVersion, EShLangFragment, source,
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infoSink, *commonTable[EPcFragment]);
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// do the per-stage tables
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// always have vertex and fragment
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InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangVertex, source,
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infoSink, commonTable, symbolTables);
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InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangFragment, source,
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infoSink, commonTable, symbolTables);
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// check for tessellation
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if ((profile != EEsProfile && version >= 150) ||
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(profile == EEsProfile && version >= 310)) {
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InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangTessControl, source,
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infoSink, commonTable, symbolTables);
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InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangTessEvaluation, source,
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infoSink, commonTable, symbolTables);
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}
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// check for geometry
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if ((profile != EEsProfile && version >= 150) ||
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(profile == EEsProfile && version >= 310))
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InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangGeometry, source,
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infoSink, commonTable, symbolTables);
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// check for compute
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if ((profile != EEsProfile && version >= 420) ||
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(profile == EEsProfile && version >= 310))
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InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangCompute, source,
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infoSink, commonTable, symbolTables);
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return true;
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}
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bool AddContextSpecificSymbols(const TBuiltInResource* resources, TInfoSink& infoSink, TSymbolTable& symbolTable, int version,
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EProfile profile, const SpvVersion& spvVersion, EShLanguage language, EShSource source)
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{
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std::unique_ptr<TBuiltInParseables> builtInParseables(CreateBuiltInParseables(infoSink, source));
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if (builtInParseables == nullptr)
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return false;
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builtInParseables->initialize(*resources, version, profile, spvVersion, language);
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InitializeSymbolTable(builtInParseables->getCommonString(), version, profile, spvVersion, language, source, infoSink, symbolTable);
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builtInParseables->identifyBuiltIns(version, profile, spvVersion, language, symbolTable, *resources);
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return true;
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}
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//
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// To do this on the fly, we want to leave the current state of our thread's
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// pool allocator intact, so:
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// - Switch to a new pool for parsing the built-ins
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// - Do the parsing, which builds the symbol table, using the new pool
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// - Switch to the process-global pool to save a copy the resulting symbol table
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// - Free up the new pool used to parse the built-ins
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// - Switch back to the original thread's pool
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//
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// This only gets done the first time any thread needs a particular symbol table
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// (lazy evaluation).
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//
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void SetupBuiltinSymbolTable(int version, EProfile profile, const SpvVersion& spvVersion, EShSource source)
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{
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TInfoSink infoSink;
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// Make sure only one thread tries to do this at a time
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glslang::GetGlobalLock();
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// See if it's already been done for this version/profile combination
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int versionIndex = MapVersionToIndex(version);
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int spvVersionIndex = MapSpvVersionToIndex(spvVersion);
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int profileIndex = MapProfileToIndex(profile);
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int sourceIndex = MapSourceToIndex(source);
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if (CommonSymbolTable[versionIndex][spvVersionIndex][profileIndex][sourceIndex][EPcGeneral]) {
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glslang::ReleaseGlobalLock();
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return;
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}
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// Switch to a new pool
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TPoolAllocator& previousAllocator = GetThreadPoolAllocator();
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TPoolAllocator* builtInPoolAllocator = new TPoolAllocator();
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SetThreadPoolAllocator(*builtInPoolAllocator);
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// Dynamically allocate the local symbol tables so we can control when they are deallocated WRT when the pool is popped.
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TSymbolTable* commonTable[EPcCount];
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TSymbolTable* stageTables[EShLangCount];
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for (int precClass = 0; precClass < EPcCount; ++precClass)
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commonTable[precClass] = new TSymbolTable;
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for (int stage = 0; stage < EShLangCount; ++stage)
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stageTables[stage] = new TSymbolTable;
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// Generate the local symbol tables using the new pool
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InitializeSymbolTables(infoSink, commonTable, stageTables, version, profile, spvVersion, source);
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// Switch to the process-global pool
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SetThreadPoolAllocator(*PerProcessGPA);
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// Copy the local symbol tables from the new pool to the global tables using the process-global pool
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for (int precClass = 0; precClass < EPcCount; ++precClass) {
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if (! commonTable[precClass]->isEmpty()) {
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CommonSymbolTable[versionIndex][spvVersionIndex][profileIndex][sourceIndex][precClass] = new TSymbolTable;
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CommonSymbolTable[versionIndex][spvVersionIndex][profileIndex][sourceIndex][precClass]->copyTable(*commonTable[precClass]);
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CommonSymbolTable[versionIndex][spvVersionIndex][profileIndex][sourceIndex][precClass]->readOnly();
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}
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}
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for (int stage = 0; stage < EShLangCount; ++stage) {
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if (! stageTables[stage]->isEmpty()) {
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SharedSymbolTables[versionIndex][spvVersionIndex][profileIndex][sourceIndex][stage] = new TSymbolTable;
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SharedSymbolTables[versionIndex][spvVersionIndex][profileIndex][sourceIndex][stage]->adoptLevels(*CommonSymbolTable
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[versionIndex][spvVersionIndex][profileIndex][sourceIndex][CommonIndex(profile, (EShLanguage)stage)]);
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SharedSymbolTables[versionIndex][spvVersionIndex][profileIndex][sourceIndex][stage]->copyTable(*stageTables[stage]);
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SharedSymbolTables[versionIndex][spvVersionIndex][profileIndex][sourceIndex][stage]->readOnly();
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}
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}
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// Clean up the local tables before deleting the pool they used.
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for (int precClass = 0; precClass < EPcCount; ++precClass)
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delete commonTable[precClass];
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for (int stage = 0; stage < EShLangCount; ++stage)
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delete stageTables[stage];
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delete builtInPoolAllocator;
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SetThreadPoolAllocator(previousAllocator);
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glslang::ReleaseGlobalLock();
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}
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// Return true if the shader was correctly specified for version/profile/stage.
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bool DeduceVersionProfile(TInfoSink& infoSink, EShLanguage stage, bool versionNotFirst, int defaultVersion,
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EShSource source, int& version, EProfile& profile, const SpvVersion& spvVersion)
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{
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const int FirstProfileVersion = 150;
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bool correct = true;
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if (source == EShSourceHlsl) {
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version = 500; // shader model; currently a characteristic of glslang, not the input
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profile = ECoreProfile; // allow doubles in prototype parsing
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return correct;
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}
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// Get a good version...
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if (version == 0) {
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version = defaultVersion;
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// infoSink.info.message(EPrefixWarning, "#version: statement missing; use #version on first line of shader");
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}
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// Get a good profile...
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if (profile == ENoProfile) {
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if (version == 300 || version == 310) {
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correct = false;
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infoSink.info.message(EPrefixError, "#version: versions 300 and 310 require specifying the 'es' profile");
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profile = EEsProfile;
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} else if (version == 100)
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profile = EEsProfile;
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else if (version >= FirstProfileVersion)
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profile = ECoreProfile;
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else
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profile = ENoProfile;
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} else {
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// a profile was provided...
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if (version < 150) {
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correct = false;
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infoSink.info.message(EPrefixError, "#version: versions before 150 do not allow a profile token");
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if (version == 100)
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profile = EEsProfile;
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else
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profile = ENoProfile;
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} else if (version == 300 || version == 310) {
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if (profile != EEsProfile) {
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correct = false;
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infoSink.info.message(EPrefixError, "#version: versions 300 and 310 support only the es profile");
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}
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profile = EEsProfile;
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} else {
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if (profile == EEsProfile) {
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correct = false;
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infoSink.info.message(EPrefixError, "#version: only version 300 and 310 support the es profile");
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if (version >= FirstProfileVersion)
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profile = ECoreProfile;
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else
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profile = ENoProfile;
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}
|
|
// else: typical desktop case... e.g., "#version 410 core"
|
|
}
|
|
}
|
|
|
|
// Correct for stage type...
|
|
switch (stage) {
|
|
case EShLangGeometry:
|
|
if ((profile == EEsProfile && version < 310) ||
|
|
(profile != EEsProfile && version < 150)) {
|
|
correct = false;
|
|
infoSink.info.message(EPrefixError, "#version: geometry shaders require es profile with version 310 or non-es profile with version 150 or above");
|
|
version = (profile == EEsProfile) ? 310 : 150;
|
|
if (profile == EEsProfile || profile == ENoProfile)
|
|
profile = ECoreProfile;
|
|
}
|
|
break;
|
|
case EShLangTessControl:
|
|
case EShLangTessEvaluation:
|
|
if ((profile == EEsProfile && version < 310) ||
|
|
(profile != EEsProfile && version < 150)) {
|
|
correct = false;
|
|
infoSink.info.message(EPrefixError, "#version: tessellation shaders require es profile with version 310 or non-es profile with version 150 or above");
|
|
version = (profile == EEsProfile) ? 310 : 400; // 150 supports the extension, correction is to 400 which does not
|
|
if (profile == EEsProfile || profile == ENoProfile)
|
|
profile = ECoreProfile;
|
|
}
|
|
break;
|
|
case EShLangCompute:
|
|
if ((profile == EEsProfile && version < 310) ||
|
|
(profile != EEsProfile && version < 420)) {
|
|
correct = false;
|
|
infoSink.info.message(EPrefixError, "#version: compute shaders require es profile with version 310 or above, or non-es profile with version 420 or above");
|
|
version = profile == EEsProfile ? 310 : 420;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (profile == EEsProfile && version >= 300 && versionNotFirst) {
|
|
correct = false;
|
|
infoSink.info.message(EPrefixError, "#version: statement must appear first in es-profile shader; before comments or newlines");
|
|
}
|
|
|
|
// Check for SPIR-V compatibility
|
|
if (spvVersion.spv != 0) {
|
|
switch (profile) {
|
|
case EEsProfile:
|
|
if (spvVersion.vulkan >= 100 && version < 310) {
|
|
correct = false;
|
|
infoSink.info.message(EPrefixError, "#version: ES shaders for Vulkan SPIR-V require version 310 or higher");
|
|
version = 310;
|
|
}
|
|
if (spvVersion.openGl >= 100) {
|
|
correct = false;
|
|
infoSink.info.message(EPrefixError, "#version: ES shaders for OpenGL SPIR-V are not supported");
|
|
version = 310;
|
|
}
|
|
break;
|
|
case ECompatibilityProfile:
|
|
infoSink.info.message(EPrefixError, "#version: compilation for SPIR-V does not support the compatibility profile");
|
|
break;
|
|
default:
|
|
if (spvVersion.vulkan >= 100 && version < 140) {
|
|
correct = false;
|
|
infoSink.info.message(EPrefixError, "#version: Desktop shaders for Vulkan SPIR-V require version 140 or higher");
|
|
version = 140;
|
|
}
|
|
if (spvVersion.openGl >= 100 && version < 330) {
|
|
correct = false;
|
|
infoSink.info.message(EPrefixError, "#version: Desktop shaders for OpenGL SPIR-V require version 330 or higher");
|
|
version = 330;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// A meta check on the condition of the compiler itself...
|
|
switch (version) {
|
|
|
|
// ES versions
|
|
case 100:
|
|
case 300:
|
|
// versions are complete
|
|
break;
|
|
|
|
// Desktop versions
|
|
case 110:
|
|
case 120:
|
|
case 130:
|
|
case 140:
|
|
case 150:
|
|
case 330:
|
|
// versions are complete
|
|
break;
|
|
|
|
case 310:
|
|
case 400:
|
|
case 410:
|
|
case 420:
|
|
case 430:
|
|
case 440:
|
|
case 450:
|
|
infoSink.info << "Warning, version " << version << " is not yet complete; most version-specific features are present, but some are missing.\n";
|
|
break;
|
|
|
|
default:
|
|
infoSink.info << "Warning, version " << version << " is unknown.\n";
|
|
break;
|
|
|
|
}
|
|
|
|
return correct;
|
|
}
|
|
|
|
// This is the common setup and cleanup code for PreprocessDeferred and
|
|
// CompileDeferred.
|
|
// It takes any callable with a signature of
|
|
// bool (TParseContextBase& parseContext, TPpContext& ppContext,
|
|
// TInputScanner& input, bool versionWillBeError,
|
|
// TSymbolTable& , TIntermediate& ,
|
|
// EShOptimizationLevel , EShMessages );
|
|
// Which returns false if a failure was detected and true otherwise.
|
|
//
|
|
template<typename ProcessingContext>
|
|
bool ProcessDeferred(
|
|
TCompiler* compiler,
|
|
const char* const shaderStrings[],
|
|
const int numStrings,
|
|
const int* inputLengths,
|
|
const char* const stringNames[],
|
|
const char* customPreamble,
|
|
const EShOptimizationLevel optLevel,
|
|
const TBuiltInResource* resources,
|
|
int defaultVersion, // use 100 for ES environment, 110 for desktop; this is the GLSL version, not SPIR-V or Vulkan
|
|
EProfile defaultProfile,
|
|
// set version/profile to defaultVersion/defaultProfile regardless of the #version
|
|
// directive in the source code
|
|
bool forceDefaultVersionAndProfile,
|
|
bool forwardCompatible, // give errors for use of deprecated features
|
|
EShMessages messages, // warnings/errors/AST; things to print out
|
|
TIntermediate& intermediate, // returned tree, etc.
|
|
ProcessingContext& processingContext,
|
|
bool requireNonempty,
|
|
TShader::Includer& includer,
|
|
const std::string sourceEntryPointName = ""
|
|
)
|
|
{
|
|
if (! InitThread())
|
|
return false;
|
|
|
|
// This must be undone (.pop()) by the caller, after it finishes consuming the created tree.
|
|
GetThreadPoolAllocator().push();
|
|
|
|
if (numStrings == 0)
|
|
return true;
|
|
|
|
// Move to length-based strings, rather than null-terminated strings.
|
|
// Also, add strings to include the preamble and to ensure the shader is not null,
|
|
// which lets the grammar accept what was a null (post preprocessing) shader.
|
|
//
|
|
// Shader will look like
|
|
// string 0: system preamble
|
|
// string 1: custom preamble
|
|
// string 2...numStrings+1: user's shader
|
|
// string numStrings+2: "int;"
|
|
const int numPre = 2;
|
|
const int numPost = requireNonempty? 1 : 0;
|
|
const int numTotal = numPre + numStrings + numPost;
|
|
size_t* lengths = new size_t[numTotal];
|
|
const char** strings = new const char*[numTotal];
|
|
const char** names = new const char*[numTotal];
|
|
for (int s = 0; s < numStrings; ++s) {
|
|
strings[s + numPre] = shaderStrings[s];
|
|
if (inputLengths == 0 || inputLengths[s] < 0)
|
|
lengths[s + numPre] = strlen(shaderStrings[s]);
|
|
else
|
|
lengths[s + numPre] = inputLengths[s];
|
|
}
|
|
if (stringNames != nullptr) {
|
|
for (int s = 0; s < numStrings; ++s)
|
|
names[s + numPre] = stringNames[s];
|
|
} else {
|
|
for (int s = 0; s < numStrings; ++s)
|
|
names[s + numPre] = nullptr;
|
|
}
|
|
|
|
// First, without using the preprocessor or parser, find the #version, so we know what
|
|
// symbol tables, processing rules, etc. to set up. This does not need the extra strings
|
|
// outlined above, just the user shader.
|
|
glslang::TInputScanner userInput(numStrings, &strings[numPre], &lengths[numPre]); // no preamble
|
|
int version = 0;
|
|
EProfile profile = ENoProfile;
|
|
bool versionNotFirstToken = false;
|
|
bool versionNotFirst = (messages & EShMsgReadHlsl) ? true : userInput.scanVersion(version, profile, versionNotFirstToken);
|
|
bool versionNotFound = version == 0;
|
|
if (forceDefaultVersionAndProfile && (messages & EShMsgReadHlsl) == 0) {
|
|
if (! (messages & EShMsgSuppressWarnings) && ! versionNotFound &&
|
|
(version != defaultVersion || profile != defaultProfile)) {
|
|
compiler->infoSink.info << "Warning, (version, profile) forced to be ("
|
|
<< defaultVersion << ", " << ProfileName(defaultProfile)
|
|
<< "), while in source code it is ("
|
|
<< version << ", " << ProfileName(profile) << ")\n";
|
|
}
|
|
|
|
if (versionNotFound) {
|
|
versionNotFirstToken = false;
|
|
versionNotFirst = false;
|
|
versionNotFound = false;
|
|
}
|
|
version = defaultVersion;
|
|
profile = defaultProfile;
|
|
}
|
|
SpvVersion spvVersion;
|
|
if (messages & EShMsgSpvRules)
|
|
spvVersion.spv = 0x00010000; // TODO: eventually have this come from the outside
|
|
EShSource source = (messages & EShMsgReadHlsl) ? EShSourceHlsl : EShSourceGlsl;
|
|
if (messages & EShMsgVulkanRules)
|
|
spvVersion.vulkan = 100; // TODO: eventually have this come from the outside
|
|
else if (spvVersion.spv != 0)
|
|
spvVersion.openGl = 100; // TODO: eventually have this come from the outside
|
|
bool goodVersion = DeduceVersionProfile(compiler->infoSink, compiler->getLanguage(), versionNotFirst, defaultVersion, source, version, profile, spvVersion);
|
|
bool versionWillBeError = (versionNotFound || (profile == EEsProfile && version >= 300 && versionNotFirst));
|
|
bool warnVersionNotFirst = false;
|
|
if (! versionWillBeError && versionNotFirstToken) {
|
|
if (messages & EShMsgRelaxedErrors)
|
|
warnVersionNotFirst = true;
|
|
else
|
|
versionWillBeError = true;
|
|
}
|
|
|
|
intermediate.setSource(source);
|
|
intermediate.setVersion(version);
|
|
intermediate.setProfile(profile);
|
|
intermediate.setSpv(spvVersion);
|
|
if (spvVersion.vulkan >= 100)
|
|
intermediate.setOriginUpperLeft();
|
|
if ((messages & EShMsgHlslOffsets) || (messages & EShMsgReadHlsl))
|
|
intermediate.setHlslOffsets();
|
|
if (messages & EShMsgDebugInfo) {
|
|
intermediate.setSourceFile(names[numPre]);
|
|
for (int s = 0; s < numStrings; ++s)
|
|
intermediate.addSourceText(strings[numPre]);
|
|
}
|
|
SetupBuiltinSymbolTable(version, profile, spvVersion, source);
|
|
|
|
TSymbolTable* cachedTable = SharedSymbolTables[MapVersionToIndex(version)]
|
|
[MapSpvVersionToIndex(spvVersion)]
|
|
[MapProfileToIndex(profile)]
|
|
[MapSourceToIndex(source)]
|
|
[compiler->getLanguage()];
|
|
|
|
// Dynamically allocate the symbol table so we can control when it is deallocated WRT the pool.
|
|
TSymbolTable* symbolTableMemory = new TSymbolTable;
|
|
TSymbolTable& symbolTable = *symbolTableMemory;
|
|
if (cachedTable)
|
|
symbolTable.adoptLevels(*cachedTable);
|
|
|
|
// Add built-in symbols that are potentially context dependent;
|
|
// they get popped again further down.
|
|
if (! AddContextSpecificSymbols(resources, compiler->infoSink, symbolTable, version, profile, spvVersion,
|
|
compiler->getLanguage(), source))
|
|
return false;
|
|
|
|
//
|
|
// Now we can process the full shader under proper symbols and rules.
|
|
//
|
|
|
|
TParseContextBase* parseContext = CreateParseContext(symbolTable, intermediate, version, profile, source,
|
|
compiler->getLanguage(), compiler->infoSink,
|
|
spvVersion, forwardCompatible, messages, false, sourceEntryPointName);
|
|
|
|
TPpContext ppContext(*parseContext, names[numPre]? names[numPre]: "", includer);
|
|
|
|
// only GLSL (bison triggered, really) needs an externally set scan context
|
|
glslang::TScanContext scanContext(*parseContext);
|
|
if ((messages & EShMsgReadHlsl) == 0)
|
|
parseContext->setScanContext(&scanContext);
|
|
|
|
parseContext->setPpContext(&ppContext);
|
|
parseContext->setLimits(*resources);
|
|
if (! goodVersion)
|
|
parseContext->addError();
|
|
if (warnVersionNotFirst) {
|
|
TSourceLoc loc;
|
|
loc.init();
|
|
parseContext->warn(loc, "Illegal to have non-comment, non-whitespace tokens before #version", "#version", "");
|
|
}
|
|
|
|
parseContext->initializeExtensionBehavior();
|
|
|
|
// Fill in the strings as outlined above.
|
|
std::string preamble;
|
|
parseContext->getPreamble(preamble);
|
|
strings[0] = preamble.c_str();
|
|
lengths[0] = strlen(strings[0]);
|
|
names[0] = nullptr;
|
|
strings[1] = customPreamble;
|
|
lengths[1] = strlen(strings[1]);
|
|
names[1] = nullptr;
|
|
assert(2 == numPre);
|
|
if (requireNonempty) {
|
|
const int postIndex = numStrings + numPre;
|
|
strings[postIndex] = "\n int;";
|
|
lengths[postIndex] = strlen(strings[numStrings + numPre]);
|
|
names[postIndex] = nullptr;
|
|
}
|
|
TInputScanner fullInput(numStrings + numPre + numPost, strings, lengths, names, numPre, numPost);
|
|
|
|
// Push a new symbol allocation scope that will get used for the shader's globals.
|
|
symbolTable.push();
|
|
|
|
bool success = processingContext(*parseContext, ppContext, fullInput,
|
|
versionWillBeError, symbolTable,
|
|
intermediate, optLevel, messages);
|
|
|
|
// Clean up the symbol table. The AST is self-sufficient now.
|
|
delete symbolTableMemory;
|
|
|
|
delete parseContext;
|
|
delete [] lengths;
|
|
delete [] strings;
|
|
delete [] names;
|
|
|
|
return success;
|
|
}
|
|
|
|
// Responsible for keeping track of the most recent source string and line in
|
|
// the preprocessor and outputting newlines appropriately if the source string
|
|
// or line changes.
|
|
class SourceLineSynchronizer {
|
|
public:
|
|
SourceLineSynchronizer(const std::function<int()>& lastSourceIndex,
|
|
std::stringstream* output)
|
|
: getLastSourceIndex(lastSourceIndex), output(output), lastSource(-1), lastLine(0) {}
|
|
// SourceLineSynchronizer(const SourceLineSynchronizer&) = delete;
|
|
// SourceLineSynchronizer& operator=(const SourceLineSynchronizer&) = delete;
|
|
|
|
// Sets the internally tracked source string index to that of the most
|
|
// recently read token. If we switched to a new source string, returns
|
|
// true and inserts a newline. Otherwise, returns false and outputs nothing.
|
|
bool syncToMostRecentString() {
|
|
if (getLastSourceIndex() != lastSource) {
|
|
// After switching to a new source string, we need to reset lastLine
|
|
// because line number resets every time a new source string is
|
|
// used. We also need to output a newline to separate the output
|
|
// from the previous source string (if there is one).
|
|
if (lastSource != -1 || lastLine != 0)
|
|
*output << std::endl;
|
|
lastSource = getLastSourceIndex();
|
|
lastLine = -1;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Calls syncToMostRecentString() and then sets the internally tracked line
|
|
// number to tokenLine. If we switched to a new line, returns true and inserts
|
|
// newlines appropriately. Otherwise, returns false and outputs nothing.
|
|
bool syncToLine(int tokenLine) {
|
|
syncToMostRecentString();
|
|
const bool newLineStarted = lastLine < tokenLine;
|
|
for (; lastLine < tokenLine; ++lastLine) {
|
|
if (lastLine > 0) *output << std::endl;
|
|
}
|
|
return newLineStarted;
|
|
}
|
|
|
|
// Sets the internally tracked line number to newLineNum.
|
|
void setLineNum(int newLineNum) { lastLine = newLineNum; }
|
|
|
|
private:
|
|
SourceLineSynchronizer& operator=(const SourceLineSynchronizer&);
|
|
|
|
// A function for getting the index of the last valid source string we've
|
|
// read tokens from.
|
|
const std::function<int()> getLastSourceIndex;
|
|
// output stream for newlines.
|
|
std::stringstream* output;
|
|
// lastSource is the source string index (starting from 0) of the last token
|
|
// processed. It is tracked in order for newlines to be inserted when a new
|
|
// source string starts. -1 means we haven't started processing any source
|
|
// string.
|
|
int lastSource;
|
|
// lastLine is the line number (starting from 1) of the last token processed.
|
|
// It is tracked in order for newlines to be inserted when a token appears
|
|
// on a new line. 0 means we haven't started processing any line in the
|
|
// current source string.
|
|
int lastLine;
|
|
};
|
|
|
|
// DoPreprocessing is a valid ProcessingContext template argument,
|
|
// which only performs the preprocessing step of compilation.
|
|
// It places the result in the "string" argument to its constructor.
|
|
struct DoPreprocessing {
|
|
explicit DoPreprocessing(std::string* string): outputString(string) {}
|
|
bool operator()(TParseContextBase& parseContext, TPpContext& ppContext,
|
|
TInputScanner& input, bool versionWillBeError,
|
|
TSymbolTable&, TIntermediate&,
|
|
EShOptimizationLevel, EShMessages)
|
|
{
|
|
// This is a list of tokens that do not require a space before or after.
|
|
static const std::string unNeededSpaceTokens = ";()[]";
|
|
static const std::string noSpaceBeforeTokens = ",";
|
|
glslang::TPpToken ppToken;
|
|
|
|
parseContext.setScanner(&input);
|
|
ppContext.setInput(input, versionWillBeError);
|
|
|
|
std::stringstream outputStream;
|
|
SourceLineSynchronizer lineSync(
|
|
std::bind(&TInputScanner::getLastValidSourceIndex, &input), &outputStream);
|
|
|
|
parseContext.setExtensionCallback([&lineSync, &outputStream](
|
|
int line, const char* extension, const char* behavior) {
|
|
lineSync.syncToLine(line);
|
|
outputStream << "#extension " << extension << " : " << behavior;
|
|
});
|
|
|
|
parseContext.setLineCallback([&lineSync, &outputStream, &parseContext](
|
|
int curLineNum, int newLineNum, bool hasSource, int sourceNum, const char* sourceName) {
|
|
// SourceNum is the number of the source-string that is being parsed.
|
|
lineSync.syncToLine(curLineNum);
|
|
outputStream << "#line " << newLineNum;
|
|
if (hasSource) {
|
|
outputStream << " ";
|
|
if (sourceName != nullptr) {
|
|
outputStream << "\"" << sourceName << "\"";
|
|
} else {
|
|
outputStream << sourceNum;
|
|
}
|
|
}
|
|
if (parseContext.lineDirectiveShouldSetNextLine()) {
|
|
// newLineNum is the new line number for the line following the #line
|
|
// directive. So the new line number for the current line is
|
|
newLineNum -= 1;
|
|
}
|
|
outputStream << std::endl;
|
|
// And we are at the next line of the #line directive now.
|
|
lineSync.setLineNum(newLineNum + 1);
|
|
});
|
|
|
|
parseContext.setVersionCallback(
|
|
[&lineSync, &outputStream](int line, int version, const char* str) {
|
|
lineSync.syncToLine(line);
|
|
outputStream << "#version " << version;
|
|
if (str) {
|
|
outputStream << " " << str;
|
|
}
|
|
});
|
|
|
|
parseContext.setPragmaCallback([&lineSync, &outputStream](
|
|
int line, const glslang::TVector<glslang::TString>& ops) {
|
|
lineSync.syncToLine(line);
|
|
outputStream << "#pragma ";
|
|
for(size_t i = 0; i < ops.size(); ++i) {
|
|
outputStream << ops[i];
|
|
}
|
|
});
|
|
|
|
parseContext.setErrorCallback([&lineSync, &outputStream](
|
|
int line, const char* errorMessage) {
|
|
lineSync.syncToLine(line);
|
|
outputStream << "#error " << errorMessage;
|
|
});
|
|
|
|
int lastToken = EndOfInput; // lastToken records the last token processed.
|
|
do {
|
|
int token = ppContext.tokenize(ppToken);
|
|
if (token == EndOfInput)
|
|
break;
|
|
|
|
bool isNewString = lineSync.syncToMostRecentString();
|
|
bool isNewLine = lineSync.syncToLine(ppToken.loc.line);
|
|
|
|
if (isNewLine) {
|
|
// Don't emit whitespace onto empty lines.
|
|
// Copy any whitespace characters at the start of a line
|
|
// from the input to the output.
|
|
outputStream << std::string(ppToken.loc.column - 1, ' ');
|
|
}
|
|
|
|
// Output a space in between tokens, but not at the start of a line,
|
|
// and also not around special tokens. This helps with readability
|
|
// and consistency.
|
|
if (!isNewString && !isNewLine && lastToken != EndOfInput &&
|
|
(unNeededSpaceTokens.find((char)token) == std::string::npos) &&
|
|
(unNeededSpaceTokens.find((char)lastToken) == std::string::npos) &&
|
|
(noSpaceBeforeTokens.find((char)token) == std::string::npos)) {
|
|
outputStream << " ";
|
|
}
|
|
lastToken = token;
|
|
outputStream << ppToken.name;
|
|
} while (true);
|
|
outputStream << std::endl;
|
|
*outputString = outputStream.str();
|
|
|
|
bool success = true;
|
|
if (parseContext.getNumErrors() > 0) {
|
|
success = false;
|
|
parseContext.infoSink.info.prefix(EPrefixError);
|
|
parseContext.infoSink.info << parseContext.getNumErrors() << " compilation errors. No code generated.\n\n";
|
|
}
|
|
return success;
|
|
}
|
|
std::string* outputString;
|
|
};
|
|
|
|
// DoFullParse is a valid ProcessingConext template argument for fully
|
|
// parsing the shader. It populates the "intermediate" with the AST.
|
|
struct DoFullParse{
|
|
bool operator()(TParseContextBase& parseContext, TPpContext& ppContext,
|
|
TInputScanner& fullInput, bool versionWillBeError,
|
|
TSymbolTable&, TIntermediate& intermediate,
|
|
EShOptimizationLevel optLevel, EShMessages messages)
|
|
{
|
|
bool success = true;
|
|
// Parse the full shader.
|
|
if (! parseContext.parseShaderStrings(ppContext, fullInput, versionWillBeError))
|
|
success = false;
|
|
|
|
if (success && intermediate.getTreeRoot()) {
|
|
if (optLevel == EShOptNoGeneration)
|
|
parseContext.infoSink.info.message(EPrefixNone, "No errors. No code generation or linking was requested.");
|
|
else
|
|
success = intermediate.postProcess(intermediate.getTreeRoot(), parseContext.getLanguage());
|
|
} else if (! success) {
|
|
parseContext.infoSink.info.prefix(EPrefixError);
|
|
parseContext.infoSink.info << parseContext.getNumErrors() << " compilation errors. No code generated.\n\n";
|
|
}
|
|
|
|
if (messages & EShMsgAST)
|
|
intermediate.output(parseContext.infoSink, true);
|
|
|
|
return success;
|
|
}
|
|
};
|
|
|
|
// Take a single compilation unit, and run the preprocessor on it.
|
|
// Return: True if there were no issues found in preprocessing,
|
|
// False if during preprocessing any unknown version, pragmas or
|
|
// extensions were found.
|
|
bool PreprocessDeferred(
|
|
TCompiler* compiler,
|
|
const char* const shaderStrings[],
|
|
const int numStrings,
|
|
const int* inputLengths,
|
|
const char* const stringNames[],
|
|
const char* preamble,
|
|
const EShOptimizationLevel optLevel,
|
|
const TBuiltInResource* resources,
|
|
int defaultVersion, // use 100 for ES environment, 110 for desktop
|
|
EProfile defaultProfile,
|
|
bool forceDefaultVersionAndProfile,
|
|
bool forwardCompatible, // give errors for use of deprecated features
|
|
EShMessages messages, // warnings/errors/AST; things to print out
|
|
TShader::Includer& includer,
|
|
TIntermediate& intermediate, // returned tree, etc.
|
|
std::string* outputString)
|
|
{
|
|
DoPreprocessing parser(outputString);
|
|
return ProcessDeferred(compiler, shaderStrings, numStrings, inputLengths, stringNames,
|
|
preamble, optLevel, resources, defaultVersion,
|
|
defaultProfile, forceDefaultVersionAndProfile,
|
|
forwardCompatible, messages, intermediate, parser,
|
|
false, includer);
|
|
}
|
|
|
|
//
|
|
// do a partial compile on the given strings for a single compilation unit
|
|
// for a potential deferred link into a single stage (and deferred full compile of that
|
|
// stage through machine-dependent compilation).
|
|
//
|
|
// all preprocessing, parsing, semantic checks, etc. for a single compilation unit
|
|
// are done here.
|
|
//
|
|
// return: the tree and other information is filled into the intermediate argument,
|
|
// and true is returned by the function for success.
|
|
//
|
|
bool CompileDeferred(
|
|
TCompiler* compiler,
|
|
const char* const shaderStrings[],
|
|
const int numStrings,
|
|
const int* inputLengths,
|
|
const char* const stringNames[],
|
|
const char* preamble,
|
|
const EShOptimizationLevel optLevel,
|
|
const TBuiltInResource* resources,
|
|
int defaultVersion, // use 100 for ES environment, 110 for desktop
|
|
EProfile defaultProfile,
|
|
bool forceDefaultVersionAndProfile,
|
|
bool forwardCompatible, // give errors for use of deprecated features
|
|
EShMessages messages, // warnings/errors/AST; things to print out
|
|
TIntermediate& intermediate,// returned tree, etc.
|
|
TShader::Includer& includer,
|
|
const std::string sourceEntryPointName = "")
|
|
{
|
|
DoFullParse parser;
|
|
return ProcessDeferred(compiler, shaderStrings, numStrings, inputLengths, stringNames,
|
|
preamble, optLevel, resources, defaultVersion,
|
|
defaultProfile, forceDefaultVersionAndProfile,
|
|
forwardCompatible, messages, intermediate, parser,
|
|
true, includer, sourceEntryPointName);
|
|
}
|
|
|
|
} // end anonymous namespace for local functions
|
|
|
|
//
|
|
// ShInitialize() should be called exactly once per process, not per thread.
|
|
//
|
|
int ShInitialize()
|
|
{
|
|
glslang::InitGlobalLock();
|
|
|
|
if (! InitProcess())
|
|
return 0;
|
|
|
|
if (! PerProcessGPA)
|
|
PerProcessGPA = new TPoolAllocator();
|
|
|
|
glslang::TScanContext::fillInKeywordMap();
|
|
#ifdef ENABLE_HLSL
|
|
glslang::HlslScanContext::fillInKeywordMap();
|
|
#endif
|
|
|
|
return 1;
|
|
}
|
|
|
|
//
|
|
// Driver calls these to create and destroy compiler/linker
|
|
// objects.
|
|
//
|
|
|
|
ShHandle ShConstructCompiler(const EShLanguage language, int debugOptions)
|
|
{
|
|
if (!InitThread())
|
|
return 0;
|
|
|
|
TShHandleBase* base = static_cast<TShHandleBase*>(ConstructCompiler(language, debugOptions));
|
|
|
|
return reinterpret_cast<void*>(base);
|
|
}
|
|
|
|
ShHandle ShConstructLinker(const EShExecutable executable, int debugOptions)
|
|
{
|
|
if (!InitThread())
|
|
return 0;
|
|
|
|
TShHandleBase* base = static_cast<TShHandleBase*>(ConstructLinker(executable, debugOptions));
|
|
|
|
return reinterpret_cast<void*>(base);
|
|
}
|
|
|
|
ShHandle ShConstructUniformMap()
|
|
{
|
|
if (!InitThread())
|
|
return 0;
|
|
|
|
TShHandleBase* base = static_cast<TShHandleBase*>(ConstructUniformMap());
|
|
|
|
return reinterpret_cast<void*>(base);
|
|
}
|
|
|
|
void ShDestruct(ShHandle handle)
|
|
{
|
|
if (handle == 0)
|
|
return;
|
|
|
|
TShHandleBase* base = static_cast<TShHandleBase*>(handle);
|
|
|
|
if (base->getAsCompiler())
|
|
DeleteCompiler(base->getAsCompiler());
|
|
else if (base->getAsLinker())
|
|
DeleteLinker(base->getAsLinker());
|
|
else if (base->getAsUniformMap())
|
|
DeleteUniformMap(base->getAsUniformMap());
|
|
}
|
|
|
|
//
|
|
// Cleanup symbol tables
|
|
//
|
|
int __fastcall ShFinalize()
|
|
{
|
|
for (int version = 0; version < VersionCount; ++version) {
|
|
for (int spvVersion = 0; spvVersion < SpvVersionCount; ++spvVersion) {
|
|
for (int p = 0; p < ProfileCount; ++p) {
|
|
for (int source = 0; source < SourceCount; ++source) {
|
|
for (int stage = 0; stage < EShLangCount; ++stage) {
|
|
delete SharedSymbolTables[version][spvVersion][p][source][stage];
|
|
SharedSymbolTables[version][spvVersion][p][source][stage] = 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
for (int version = 0; version < VersionCount; ++version) {
|
|
for (int spvVersion = 0; spvVersion < SpvVersionCount; ++spvVersion) {
|
|
for (int p = 0; p < ProfileCount; ++p) {
|
|
for (int source = 0; source < SourceCount; ++source) {
|
|
for (int pc = 0; pc < EPcCount; ++pc) {
|
|
delete CommonSymbolTable[version][spvVersion][p][source][pc];
|
|
CommonSymbolTable[version][spvVersion][p][source][pc] = 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (PerProcessGPA) {
|
|
PerProcessGPA->popAll();
|
|
delete PerProcessGPA;
|
|
PerProcessGPA = 0;
|
|
}
|
|
|
|
glslang::TScanContext::deleteKeywordMap();
|
|
#ifdef ENABLE_HLSL
|
|
glslang::HlslScanContext::deleteKeywordMap();
|
|
#endif
|
|
|
|
return 1;
|
|
}
|
|
|
|
//
|
|
// Do a full compile on the given strings for a single compilation unit
|
|
// forming a complete stage. The result of the machine dependent compilation
|
|
// is left in the provided compile object.
|
|
//
|
|
// Return: The return value is really boolean, indicating
|
|
// success (1) or failure (0).
|
|
//
|
|
int ShCompile(
|
|
const ShHandle handle,
|
|
const char* const shaderStrings[],
|
|
const int numStrings,
|
|
const int* inputLengths,
|
|
const EShOptimizationLevel optLevel,
|
|
const TBuiltInResource* resources,
|
|
int /*debugOptions*/,
|
|
int defaultVersion, // use 100 for ES environment, 110 for desktop
|
|
bool forwardCompatible, // give errors for use of deprecated features
|
|
EShMessages messages // warnings/errors/AST; things to print out
|
|
)
|
|
{
|
|
// Map the generic handle to the C++ object
|
|
if (handle == 0)
|
|
return 0;
|
|
|
|
TShHandleBase* base = reinterpret_cast<TShHandleBase*>(handle);
|
|
TCompiler* compiler = base->getAsCompiler();
|
|
if (compiler == 0)
|
|
return 0;
|
|
|
|
compiler->infoSink.info.erase();
|
|
compiler->infoSink.debug.erase();
|
|
|
|
TIntermediate intermediate(compiler->getLanguage());
|
|
TShader::ForbidIncluder includer;
|
|
bool success = CompileDeferred(compiler, shaderStrings, numStrings, inputLengths, nullptr,
|
|
"", optLevel, resources, defaultVersion, ENoProfile, false,
|
|
forwardCompatible, messages, intermediate, includer);
|
|
|
|
//
|
|
// Call the machine dependent compiler
|
|
//
|
|
if (success && intermediate.getTreeRoot() && optLevel != EShOptNoGeneration)
|
|
success = compiler->compile(intermediate.getTreeRoot(), intermediate.getVersion(), intermediate.getProfile());
|
|
|
|
intermediate.removeTree();
|
|
|
|
// Throw away all the temporary memory used by the compilation process.
|
|
// The push was done in the CompileDeferred() call above.
|
|
GetThreadPoolAllocator().pop();
|
|
|
|
return success ? 1 : 0;
|
|
}
|
|
|
|
//
|
|
// Link the given compile objects.
|
|
//
|
|
// Return: The return value of is really boolean, indicating
|
|
// success or failure.
|
|
//
|
|
int ShLinkExt(
|
|
const ShHandle linkHandle,
|
|
const ShHandle compHandles[],
|
|
const int numHandles)
|
|
{
|
|
if (linkHandle == 0 || numHandles == 0)
|
|
return 0;
|
|
|
|
THandleList cObjects;
|
|
|
|
for (int i = 0; i < numHandles; ++i) {
|
|
if (compHandles[i] == 0)
|
|
return 0;
|
|
TShHandleBase* base = reinterpret_cast<TShHandleBase*>(compHandles[i]);
|
|
if (base->getAsLinker()) {
|
|
cObjects.push_back(base->getAsLinker());
|
|
}
|
|
if (base->getAsCompiler())
|
|
cObjects.push_back(base->getAsCompiler());
|
|
|
|
if (cObjects[i] == 0)
|
|
return 0;
|
|
}
|
|
|
|
TShHandleBase* base = reinterpret_cast<TShHandleBase*>(linkHandle);
|
|
TLinker* linker = static_cast<TLinker*>(base->getAsLinker());
|
|
|
|
if (linker == 0)
|
|
return 0;
|
|
|
|
linker->infoSink.info.erase();
|
|
|
|
for (int i = 0; i < numHandles; ++i) {
|
|
if (cObjects[i]->getAsCompiler()) {
|
|
if (! cObjects[i]->getAsCompiler()->linkable()) {
|
|
linker->infoSink.info.message(EPrefixError, "Not all shaders have valid object code.");
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool ret = linker->link(cObjects);
|
|
|
|
return ret ? 1 : 0;
|
|
}
|
|
|
|
//
|
|
// ShSetEncrpytionMethod is a place-holder for specifying
|
|
// how source code is encrypted.
|
|
//
|
|
void ShSetEncryptionMethod(ShHandle handle)
|
|
{
|
|
if (handle == 0)
|
|
return;
|
|
}
|
|
|
|
//
|
|
// Return any compiler/linker/uniformmap log of messages for the application.
|
|
//
|
|
const char* ShGetInfoLog(const ShHandle handle)
|
|
{
|
|
if (!InitThread())
|
|
return 0;
|
|
|
|
if (handle == 0)
|
|
return 0;
|
|
|
|
TShHandleBase* base = static_cast<TShHandleBase*>(handle);
|
|
TInfoSink* infoSink;
|
|
|
|
if (base->getAsCompiler())
|
|
infoSink = &(base->getAsCompiler()->getInfoSink());
|
|
else if (base->getAsLinker())
|
|
infoSink = &(base->getAsLinker()->getInfoSink());
|
|
else
|
|
return 0;
|
|
|
|
infoSink->info << infoSink->debug.c_str();
|
|
return infoSink->info.c_str();
|
|
}
|
|
|
|
//
|
|
// Return the resulting binary code from the link process. Structure
|
|
// is machine dependent.
|
|
//
|
|
const void* ShGetExecutable(const ShHandle handle)
|
|
{
|
|
if (!InitThread())
|
|
return 0;
|
|
|
|
if (handle == 0)
|
|
return 0;
|
|
|
|
TShHandleBase* base = reinterpret_cast<TShHandleBase*>(handle);
|
|
|
|
TLinker* linker = static_cast<TLinker*>(base->getAsLinker());
|
|
if (linker == 0)
|
|
return 0;
|
|
|
|
return linker->getObjectCode();
|
|
}
|
|
|
|
//
|
|
// Let the linker know where the application said it's attributes are bound.
|
|
// The linker does not use these values, they are remapped by the ICD or
|
|
// hardware. It just needs them to know what's aliased.
|
|
//
|
|
// Return: The return value of is really boolean, indicating
|
|
// success or failure.
|
|
//
|
|
int ShSetVirtualAttributeBindings(const ShHandle handle, const ShBindingTable* table)
|
|
{
|
|
if (!InitThread())
|
|
return 0;
|
|
|
|
if (handle == 0)
|
|
return 0;
|
|
|
|
TShHandleBase* base = reinterpret_cast<TShHandleBase*>(handle);
|
|
TLinker* linker = static_cast<TLinker*>(base->getAsLinker());
|
|
|
|
if (linker == 0)
|
|
return 0;
|
|
|
|
linker->setAppAttributeBindings(table);
|
|
|
|
return 1;
|
|
}
|
|
|
|
//
|
|
// Let the linker know where the predefined attributes have to live.
|
|
//
|
|
int ShSetFixedAttributeBindings(const ShHandle handle, const ShBindingTable* table)
|
|
{
|
|
if (!InitThread())
|
|
return 0;
|
|
|
|
if (handle == 0)
|
|
return 0;
|
|
|
|
TShHandleBase* base = reinterpret_cast<TShHandleBase*>(handle);
|
|
TLinker* linker = static_cast<TLinker*>(base->getAsLinker());
|
|
|
|
if (linker == 0)
|
|
return 0;
|
|
|
|
linker->setFixedAttributeBindings(table);
|
|
return 1;
|
|
}
|
|
|
|
//
|
|
// Some attribute locations are off-limits to the linker...
|
|
//
|
|
int ShExcludeAttributes(const ShHandle handle, int *attributes, int count)
|
|
{
|
|
if (!InitThread())
|
|
return 0;
|
|
|
|
if (handle == 0)
|
|
return 0;
|
|
|
|
TShHandleBase* base = reinterpret_cast<TShHandleBase*>(handle);
|
|
TLinker* linker = static_cast<TLinker*>(base->getAsLinker());
|
|
if (linker == 0)
|
|
return 0;
|
|
|
|
linker->setExcludedAttributes(attributes, count);
|
|
|
|
return 1;
|
|
}
|
|
|
|
//
|
|
// Return the index for OpenGL to use for knowing where a uniform lives.
|
|
//
|
|
// Return: The return value of is really boolean, indicating
|
|
// success or failure.
|
|
//
|
|
int ShGetUniformLocation(const ShHandle handle, const char* name)
|
|
{
|
|
if (!InitThread())
|
|
return 0;
|
|
|
|
if (handle == 0)
|
|
return -1;
|
|
|
|
TShHandleBase* base = reinterpret_cast<TShHandleBase*>(handle);
|
|
TUniformMap* uniformMap= base->getAsUniformMap();
|
|
if (uniformMap == 0)
|
|
return -1;
|
|
|
|
return uniformMap->getLocation(name);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Deferred-Lowering C++ Interface
|
|
// -----------------------------------
|
|
//
|
|
// Below is a new alternate C++ interface that might potentially replace the above
|
|
// opaque handle-based interface.
|
|
//
|
|
// See more detailed comment in ShaderLang.h
|
|
//
|
|
|
|
namespace glslang {
|
|
|
|
#include "../Include/revision.h"
|
|
|
|
const char* GetEsslVersionString()
|
|
{
|
|
return "OpenGL ES GLSL 3.00 glslang LunarG Khronos." GLSLANG_REVISION " " GLSLANG_DATE;
|
|
}
|
|
|
|
const char* GetGlslVersionString()
|
|
{
|
|
return "4.20 glslang LunarG Khronos." GLSLANG_REVISION " " GLSLANG_DATE;
|
|
}
|
|
|
|
int GetKhronosToolId()
|
|
{
|
|
return 8;
|
|
}
|
|
|
|
bool InitializeProcess()
|
|
{
|
|
return ShInitialize() != 0;
|
|
}
|
|
|
|
void FinalizeProcess()
|
|
{
|
|
ShFinalize();
|
|
}
|
|
|
|
class TDeferredCompiler : public TCompiler {
|
|
public:
|
|
TDeferredCompiler(EShLanguage s, TInfoSink& i) : TCompiler(s, i) { }
|
|
virtual bool compile(TIntermNode*, int = 0, EProfile = ENoProfile) { return true; }
|
|
};
|
|
|
|
TShader::TShader(EShLanguage s)
|
|
: pool(0), stage(s), lengths(nullptr), stringNames(nullptr), preamble("")
|
|
{
|
|
infoSink = new TInfoSink;
|
|
compiler = new TDeferredCompiler(stage, *infoSink);
|
|
intermediate = new TIntermediate(s);
|
|
}
|
|
|
|
TShader::~TShader()
|
|
{
|
|
delete infoSink;
|
|
delete compiler;
|
|
delete intermediate;
|
|
delete pool;
|
|
}
|
|
|
|
void TShader::setStrings(const char* const* s, int n)
|
|
{
|
|
strings = s;
|
|
numStrings = n;
|
|
lengths = nullptr;
|
|
}
|
|
|
|
void TShader::setStringsWithLengths(const char* const* s, const int* l, int n)
|
|
{
|
|
strings = s;
|
|
numStrings = n;
|
|
lengths = l;
|
|
}
|
|
|
|
void TShader::setStringsWithLengthsAndNames(
|
|
const char* const* s, const int* l, const char* const* names, int n)
|
|
{
|
|
strings = s;
|
|
numStrings = n;
|
|
lengths = l;
|
|
stringNames = names;
|
|
}
|
|
|
|
void TShader::setEntryPoint(const char* entryPoint)
|
|
{
|
|
intermediate->setEntryPointName(entryPoint);
|
|
}
|
|
|
|
void TShader::setSourceEntryPoint(const char* name)
|
|
{
|
|
sourceEntryPointName = name;
|
|
}
|
|
|
|
// Set binding base for sampler types
|
|
void TShader::setShiftSamplerBinding(unsigned int base) { intermediate->setShiftSamplerBinding(base); }
|
|
// Set binding base for texture types (SRV)
|
|
void TShader::setShiftTextureBinding(unsigned int base) { intermediate->setShiftTextureBinding(base); }
|
|
// Set binding base for image types
|
|
void TShader::setShiftImageBinding(unsigned int base) { intermediate->setShiftImageBinding(base); }
|
|
// Set binding base for uniform buffer objects (CBV)
|
|
void TShader::setShiftUboBinding(unsigned int base) { intermediate->setShiftUboBinding(base); }
|
|
// Synonym for setShiftUboBinding, to match HLSL language.
|
|
void TShader::setShiftCbufferBinding(unsigned int base) { intermediate->setShiftUboBinding(base); }
|
|
// Set binding base for UAV (unordered access view)
|
|
void TShader::setShiftUavBinding(unsigned int base) { intermediate->setShiftUavBinding(base); }
|
|
// Set binding base for SSBOs
|
|
void TShader::setShiftSsboBinding(unsigned int base) { intermediate->setShiftSsboBinding(base); }
|
|
// Enables binding automapping using TIoMapper
|
|
void TShader::setAutoMapBindings(bool map) { intermediate->setAutoMapBindings(map); }
|
|
// Fragile: currently within one stage: simple auto-assignment of location
|
|
void TShader::setAutoMapLocations(bool map) { intermediate->setAutoMapLocations(map); }
|
|
// See comment above TDefaultHlslIoMapper in iomapper.cpp:
|
|
void TShader::setHlslIoMapping(bool hlslIoMap) { intermediate->setHlslIoMapping(hlslIoMap); }
|
|
void TShader::setFlattenUniformArrays(bool flatten) { intermediate->setFlattenUniformArrays(flatten); }
|
|
void TShader::setNoStorageFormat(bool useUnknownFormat) { intermediate->setNoStorageFormat(useUnknownFormat); }
|
|
void TShader::setResourceSetBinding(const std::vector<std::string>& base) { intermediate->setResourceSetBinding(base); }
|
|
void TShader::setTextureSamplerTransformMode(EShTextureSamplerTransformMode mode) { intermediate->setTextureSamplerTransformMode(mode); }
|
|
|
|
//
|
|
// Turn the shader strings into a parse tree in the TIntermediate.
|
|
//
|
|
// Returns true for success.
|
|
//
|
|
bool TShader::parse(const TBuiltInResource* builtInResources, int defaultVersion, EProfile defaultProfile, bool forceDefaultVersionAndProfile,
|
|
bool forwardCompatible, EShMessages messages, Includer& includer)
|
|
{
|
|
if (! InitThread())
|
|
return false;
|
|
|
|
pool = new TPoolAllocator();
|
|
SetThreadPoolAllocator(*pool);
|
|
if (! preamble)
|
|
preamble = "";
|
|
|
|
return CompileDeferred(compiler, strings, numStrings, lengths, stringNames,
|
|
preamble, EShOptNone, builtInResources, defaultVersion,
|
|
defaultProfile, forceDefaultVersionAndProfile,
|
|
forwardCompatible, messages, *intermediate, includer, sourceEntryPointName);
|
|
}
|
|
|
|
// Fill in a string with the result of preprocessing ShaderStrings
|
|
// Returns true if all extensions, pragmas and version strings were valid.
|
|
bool TShader::preprocess(const TBuiltInResource* builtInResources,
|
|
int defaultVersion, EProfile defaultProfile,
|
|
bool forceDefaultVersionAndProfile,
|
|
bool forwardCompatible, EShMessages message,
|
|
std::string* output_string,
|
|
Includer& includer)
|
|
{
|
|
if (! InitThread())
|
|
return false;
|
|
|
|
pool = new TPoolAllocator();
|
|
SetThreadPoolAllocator(*pool);
|
|
if (! preamble)
|
|
preamble = "";
|
|
|
|
return PreprocessDeferred(compiler, strings, numStrings, lengths, stringNames, preamble,
|
|
EShOptNone, builtInResources, defaultVersion,
|
|
defaultProfile, forceDefaultVersionAndProfile,
|
|
forwardCompatible, message, includer, *intermediate, output_string);
|
|
}
|
|
|
|
const char* TShader::getInfoLog()
|
|
{
|
|
return infoSink->info.c_str();
|
|
}
|
|
|
|
const char* TShader::getInfoDebugLog()
|
|
{
|
|
return infoSink->debug.c_str();
|
|
}
|
|
|
|
TProgram::TProgram() : pool(0), reflection(0), ioMapper(nullptr), linked(false)
|
|
{
|
|
infoSink = new TInfoSink;
|
|
for (int s = 0; s < EShLangCount; ++s) {
|
|
intermediate[s] = 0;
|
|
newedIntermediate[s] = false;
|
|
}
|
|
}
|
|
|
|
TProgram::~TProgram()
|
|
{
|
|
delete ioMapper;
|
|
delete infoSink;
|
|
delete reflection;
|
|
|
|
for (int s = 0; s < EShLangCount; ++s)
|
|
if (newedIntermediate[s])
|
|
delete intermediate[s];
|
|
|
|
delete pool;
|
|
}
|
|
|
|
//
|
|
// Merge the compilation units within each stage into a single TIntermediate.
|
|
// All starting compilation units need to be the result of calling TShader::parse().
|
|
//
|
|
// Return true for success.
|
|
//
|
|
bool TProgram::link(EShMessages messages)
|
|
{
|
|
if (linked)
|
|
return false;
|
|
linked = true;
|
|
|
|
bool error = false;
|
|
|
|
pool = new TPoolAllocator();
|
|
SetThreadPoolAllocator(*pool);
|
|
|
|
for (int s = 0; s < EShLangCount; ++s) {
|
|
if (! linkStage((EShLanguage)s, messages))
|
|
error = true;
|
|
}
|
|
|
|
// TODO: Link: cross-stage error checking
|
|
|
|
return ! error;
|
|
}
|
|
|
|
//
|
|
// Merge the compilation units within the given stage into a single TIntermediate.
|
|
//
|
|
// Return true for success.
|
|
//
|
|
bool TProgram::linkStage(EShLanguage stage, EShMessages messages)
|
|
{
|
|
if (stages[stage].size() == 0)
|
|
return true;
|
|
|
|
int numEsShaders = 0, numNonEsShaders = 0;
|
|
for (auto it = stages[stage].begin(); it != stages[stage].end(); ++it) {
|
|
if ((*it)->intermediate->getProfile() == EEsProfile) {
|
|
numEsShaders++;
|
|
} else {
|
|
numNonEsShaders++;
|
|
}
|
|
}
|
|
|
|
if (numEsShaders > 0 && numNonEsShaders > 0) {
|
|
infoSink->info.message(EPrefixError, "Cannot mix ES profile with non-ES profile shaders");
|
|
return false;
|
|
} else if (numEsShaders > 1) {
|
|
infoSink->info.message(EPrefixError, "Cannot attach multiple ES shaders of the same type to a single program");
|
|
return false;
|
|
}
|
|
|
|
//
|
|
// Be efficient for the common single compilation unit per stage case,
|
|
// reusing it's TIntermediate instead of merging into a new one.
|
|
//
|
|
TIntermediate *firstIntermediate = stages[stage].front()->intermediate;
|
|
if (stages[stage].size() == 1)
|
|
intermediate[stage] = firstIntermediate;
|
|
else {
|
|
intermediate[stage] = new TIntermediate(stage,
|
|
firstIntermediate->getVersion(),
|
|
firstIntermediate->getProfile());
|
|
|
|
|
|
// The new TIntermediate must use the same origin as the original TIntermediates.
|
|
// Otherwise linking will fail due to different coordinate systems.
|
|
if (firstIntermediate->getOriginUpperLeft()) {
|
|
intermediate[stage]->setOriginUpperLeft();
|
|
}
|
|
intermediate[stage]->setSpv(firstIntermediate->getSpv());
|
|
|
|
newedIntermediate[stage] = true;
|
|
}
|
|
|
|
if (messages & EShMsgAST)
|
|
infoSink->info << "\nLinked " << StageName(stage) << " stage:\n\n";
|
|
|
|
if (stages[stage].size() > 1) {
|
|
std::list<TShader*>::const_iterator it;
|
|
for (it = stages[stage].begin(); it != stages[stage].end(); ++it)
|
|
intermediate[stage]->merge(*infoSink, *(*it)->intermediate);
|
|
}
|
|
|
|
intermediate[stage]->finalCheck(*infoSink, (messages & EShMsgKeepUncalled) != 0);
|
|
|
|
if (messages & EShMsgAST)
|
|
intermediate[stage]->output(*infoSink, true);
|
|
|
|
return intermediate[stage]->getNumErrors() == 0;
|
|
}
|
|
|
|
const char* TProgram::getInfoLog()
|
|
{
|
|
return infoSink->info.c_str();
|
|
}
|
|
|
|
const char* TProgram::getInfoDebugLog()
|
|
{
|
|
return infoSink->debug.c_str();
|
|
}
|
|
|
|
//
|
|
// Reflection implementation.
|
|
//
|
|
|
|
bool TProgram::buildReflection()
|
|
{
|
|
if (! linked || reflection)
|
|
return false;
|
|
|
|
reflection = new TReflection;
|
|
|
|
for (int s = 0; s < EShLangCount; ++s) {
|
|
if (intermediate[s]) {
|
|
if (! reflection->addStage((EShLanguage)s, *intermediate[s]))
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
int TProgram::getNumLiveUniformVariables() const { return reflection->getNumUniforms(); }
|
|
int TProgram::getNumLiveUniformBlocks() const { return reflection->getNumUniformBlocks(); }
|
|
const char* TProgram::getUniformName(int index) const { return reflection->getUniform(index).name.c_str(); }
|
|
const char* TProgram::getUniformBlockName(int index) const { return reflection->getUniformBlock(index).name.c_str(); }
|
|
int TProgram::getUniformBlockSize(int index) const { return reflection->getUniformBlock(index).size; }
|
|
int TProgram::getUniformIndex(const char* name) const { return reflection->getIndex(name); }
|
|
int TProgram::getUniformBlockIndex(int index) const { return reflection->getUniform(index).index; }
|
|
int TProgram::getUniformBlockCounterIndex(int index) const { return reflection->getUniformBlock(index).counterIndex; }
|
|
int TProgram::getUniformType(int index) const { return reflection->getUniform(index).glDefineType; }
|
|
int TProgram::getUniformBufferOffset(int index) const { return reflection->getUniform(index).offset; }
|
|
int TProgram::getUniformArraySize(int index) const { return reflection->getUniform(index).size; }
|
|
int TProgram::getNumLiveAttributes() const { return reflection->getNumAttributes(); }
|
|
const char* TProgram::getAttributeName(int index) const { return reflection->getAttribute(index).name.c_str(); }
|
|
int TProgram::getAttributeType(int index) const { return reflection->getAttribute(index).glDefineType; }
|
|
const TType* TProgram::getAttributeTType(int index) const { return reflection->getAttribute(index).getType(); }
|
|
const TType* TProgram::getUniformTType(int index) const { return reflection->getUniform(index).getType(); }
|
|
const TType* TProgram::getUniformBlockTType(int index) const { return reflection->getUniformBlock(index).getType(); }
|
|
unsigned TProgram::getLocalSize(int dim) const { return reflection->getLocalSize(dim); }
|
|
|
|
void TProgram::dumpReflection() { reflection->dump(); }
|
|
|
|
//
|
|
// I/O mapping implementation.
|
|
//
|
|
bool TProgram::mapIO(TIoMapResolver* resolver)
|
|
{
|
|
if (! linked || ioMapper)
|
|
return false;
|
|
|
|
ioMapper = new TIoMapper;
|
|
|
|
for (int s = 0; s < EShLangCount; ++s) {
|
|
if (intermediate[s]) {
|
|
if (! ioMapper->addStage((EShLanguage)s, *intermediate[s], *infoSink, resolver))
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
} // end namespace glslang
|