mewin/glslang
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
glslang/glslang/MachineIndependent/ShaderLang.cpp
Greg Fischer ca0d54d51b Enhance readability of error messages for GLSL 
Specifically, make GLSL link error messages more specific and output
only information relevant to the error.

Also change type printing to more closely reflect GLSL syntax. This
is the default for link error messages, but must me enabled with the
new option --enhanced-msgs for compilation error messages.

Also with --enhanced-msgs, only emit one error message per source
line.
2022-02-01 12:10:08 -07:00

2245 lines
82 KiB
C++
Raw Blame History

//
// Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
// Copyright (C) 2013-2016 LunarG, Inc.
// Copyright (C) 2015-2020 Google, Inc.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
//
// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
//
// Implement the top-level of interface to the compiler/linker,
// as defined in ShaderLang.h
// This is the platform independent interface between an OGL driver
// and the shading language compiler/linker.
//
#include <cstring>
#include <iostream>
#include <sstream>
#include <memory>
#include "SymbolTable.h"
#include "ParseHelper.h"
#include "Scan.h"
#include "ScanContext.h"
#ifdef ENABLE_HLSL
#include "../HLSL/hlslParseHelper.h"
#include "../HLSL/hlslParseables.h"
#include "../HLSL/hlslScanContext.h"
#endif
#include "../Include/ShHandle.h"
#include "../../OGLCompilersDLL/InitializeDll.h"
#include "preprocessor/PpContext.h"
#define SH_EXPORTING
#include "../Public/ShaderLang.h"
#include "reflection.h"
#include "iomapper.h"
#include "Initialize.h"
// TODO: this really shouldn't be here, it is only because of the trial addition
// of printing pre-processed tokens, which requires knowing the string literal
// token to print ", but none of that seems appropriate for this file.
#include "preprocessor/PpTokens.h"
// Build-time generated includes
#include "glslang/build_info.h"
namespace { // anonymous namespace for file-local functions and symbols
// Total number of successful initializers of glslang: a refcount
// Shared global; access should be protected by a global mutex/critical section.
int NumberOfClients = 0;
using namespace glslang;
// Create a language specific version of parseables.
TBuiltInParseables* CreateBuiltInParseables(TInfoSink& infoSink, EShSource source)
{
switch (source) {
case EShSourceGlsl: return new TBuiltIns(); // GLSL builtIns
#ifdef ENABLE_HLSL
case EShSourceHlsl: return new TBuiltInParseablesHlsl(); // HLSL intrinsics
#endif
default:
infoSink.info.message(EPrefixInternalError, "Unable to determine source language");
return nullptr;
}
}
// Create a language specific version of a parse context.
TParseContextBase* CreateParseContext(TSymbolTable& symbolTable, TIntermediate& intermediate,
int version, EProfile profile, EShSource source,
EShLanguage language, TInfoSink& infoSink,
SpvVersion spvVersion, bool forwardCompatible, EShMessages messages,
bool parsingBuiltIns, std::string sourceEntryPointName = "")
{
switch (source) {
case EShSourceGlsl: {
if (sourceEntryPointName.size() == 0)
intermediate.setEntryPointName("main");
TString entryPoint = sourceEntryPointName.c_str();
return new TParseContext(symbolTable, intermediate, parsingBuiltIns, version, profile, spvVersion,
language, infoSink, forwardCompatible, messages, &entryPoint);
}
#ifdef ENABLE_HLSL
case EShSourceHlsl:
return new HlslParseContext(symbolTable, intermediate, parsingBuiltIns, version, profile, spvVersion,
language, infoSink, sourceEntryPointName.c_str(), forwardCompatible, messages);
#endif
default:
infoSink.info.message(EPrefixInternalError, "Unable to determine source language");
return nullptr;
}
}
// Local mapping functions for making arrays of symbol tables....
const int VersionCount = 17; // index range in MapVersionToIndex
int MapVersionToIndex(int version)
{
int index = 0;
switch (version) {
case 100: index = 0; break;
case 110: index = 1; break;
case 120: index = 2; break;
case 130: index = 3; break;
case 140: index = 4; break;
case 150: index = 5; break;
case 300: index = 6; break;
case 330: index = 7; break;
case 400: index = 8; break;
case 410: index = 9; break;
case 420: index = 10; break;
case 430: index = 11; break;
case 440: index = 12; break;
case 310: index = 13; break;
case 450: index = 14; break;
case 500: index = 0; break; // HLSL
case 320: index = 15; break;
case 460: index = 16; break;
default: assert(0); break;
}
assert(index < VersionCount);
return index;
}
const int SpvVersionCount = 4; // index range in MapSpvVersionToIndex
int MapSpvVersionToIndex(const SpvVersion& spvVersion)
{
int index = 0;
if (spvVersion.openGl > 0)
index = 1;
else if (spvVersion.vulkan > 0) {
if (!spvVersion.vulkanRelaxed)
index = 2;
else
index = 3;
}
assert(index < SpvVersionCount);
return index;
}
const int ProfileCount = 4; // index range in MapProfileToIndex
int MapProfileToIndex(EProfile profile)
{
int index = 0;
switch (profile) {
case ENoProfile: index = 0; break;
case ECoreProfile: index = 1; break;
case ECompatibilityProfile: index = 2; break;
case EEsProfile: index = 3; break;
default: break;
}
assert(index < ProfileCount);
return index;
}
const int SourceCount = 2;
int MapSourceToIndex(EShSource source)
{
int index = 0;
switch (source) {
case EShSourceGlsl: index = 0; break;
case EShSourceHlsl: index = 1; break;
default: break;
}
assert(index < SourceCount);
return index;
}
// only one of these needed for non-ES; ES needs 2 for different precision defaults of built-ins
enum EPrecisionClass {
EPcGeneral,
EPcFragment,
EPcCount
};
// A process-global symbol table per version per profile for built-ins common
// to multiple stages (languages), and a process-global symbol table per version
// per profile per stage for built-ins unique to each stage. They will be sparsely
// populated, so they will only be generated as needed.
//
// Each has a different set of built-ins, and we want to preserve that from
// compile to compile.
//
TSymbolTable* CommonSymbolTable[VersionCount][SpvVersionCount][ProfileCount][SourceCount][EPcCount] = {};
TSymbolTable* SharedSymbolTables[VersionCount][SpvVersionCount][ProfileCount][SourceCount][EShLangCount] = {};
TPoolAllocator* PerProcessGPA = nullptr;
//
// Parse and add to the given symbol table the content of the given shader string.
//
bool InitializeSymbolTable(const TString& builtIns, int version, EProfile profile, const SpvVersion& spvVersion, EShLanguage language,
EShSource source, TInfoSink& infoSink, TSymbolTable& symbolTable)
{
TIntermediate intermediate(language, version, profile);
intermediate.setSource(source);
std::unique_ptr<TParseContextBase> parseContext(CreateParseContext(symbolTable, intermediate, version, profile, source,
language, infoSink, spvVersion, true, EShMsgDefault,
true));
TShader::ForbidIncluder includer;
TPpContext ppContext(*parseContext, "", includer);
TScanContext scanContext(*parseContext);
parseContext->setScanContext(&scanContext);
parseContext->setPpContext(&ppContext);
//
// Push the symbol table to give it an initial scope. This
// push should not have a corresponding pop, so that built-ins
// are preserved, and the test for an empty table fails.
//
symbolTable.push();
const char* builtInShaders[2];
size_t builtInLengths[2];
builtInShaders[0] = builtIns.c_str();
builtInLengths[0] = builtIns.size();
if (builtInLengths[0] == 0)
return true;
TInputScanner input(1, builtInShaders, builtInLengths);
if (! parseContext->parseShaderStrings(ppContext, input) != 0) {
infoSink.info.message(EPrefixInternalError, "Unable to parse built-ins");
printf("Unable to parse built-ins\n%s\n", infoSink.info.c_str());
printf("%s\n", builtInShaders[0]);
return false;
}
return true;
}
int CommonIndex(EProfile profile, EShLanguage language)
{
return (profile == EEsProfile && language == EShLangFragment) ? EPcFragment : EPcGeneral;
}
//
// To initialize per-stage shared tables, with the common table already complete.
//
void InitializeStageSymbolTable(TBuiltInParseables& builtInParseables, int version, EProfile profile, const SpvVersion& spvVersion,
EShLanguage language, EShSource source, TInfoSink& infoSink, TSymbolTable** commonTable,
TSymbolTable** symbolTables)
{
#ifdef GLSLANG_WEB
profile = EEsProfile;
version = 310;
#elif defined(GLSLANG_ANGLE)
profile = ECoreProfile;
version = 450;
#endif
(*symbolTables[language]).adoptLevels(*commonTable[CommonIndex(profile, language)]);
InitializeSymbolTable(builtInParseables.getStageString(language), version, profile, spvVersion, language, source,
infoSink, *symbolTables[language]);
builtInParseables.identifyBuiltIns(version, profile, spvVersion, language, *symbolTables[language]);
if (profile == EEsProfile && version >= 300)
(*symbolTables[language]).setNoBuiltInRedeclarations();
if (version == 110)
(*symbolTables[language]).setSeparateNameSpaces();
}
//
// Initialize the full set of shareable symbol tables;
// The common (cross-stage) and those shareable per-stage.
//
bool InitializeSymbolTables(TInfoSink& infoSink, TSymbolTable** commonTable, TSymbolTable** symbolTables, int version, EProfile profile, const SpvVersion& spvVersion, EShSource source)
{
#ifdef GLSLANG_WEB
profile = EEsProfile;
version = 310;
#elif defined(GLSLANG_ANGLE)
profile = ECoreProfile;
version = 450;
#endif
std::unique_ptr<TBuiltInParseables> builtInParseables(CreateBuiltInParseables(infoSink, source));
if (builtInParseables == nullptr)
return false;
builtInParseables->initialize(version, profile, spvVersion);
// do the common tables
InitializeSymbolTable(builtInParseables->getCommonString(), version, profile, spvVersion, EShLangVertex, source,
infoSink, *commonTable[EPcGeneral]);
if (profile == EEsProfile)
InitializeSymbolTable(builtInParseables->getCommonString(), version, profile, spvVersion, EShLangFragment, source,
infoSink, *commonTable[EPcFragment]);
// do the per-stage tables
// always have vertex and fragment
InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangVertex, source,
infoSink, commonTable, symbolTables);
InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangFragment, source,
infoSink, commonTable, symbolTables);
#ifndef GLSLANG_WEB
// check for tessellation
if ((profile != EEsProfile && version >= 150) ||
(profile == EEsProfile && version >= 310)) {
InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangTessControl, source,
infoSink, commonTable, symbolTables);
InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangTessEvaluation, source,
infoSink, commonTable, symbolTables);
}
// check for geometry
if ((profile != EEsProfile && version >= 150) ||
(profile == EEsProfile && version >= 310))
InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangGeometry, source,
infoSink, commonTable, symbolTables);
// check for compute
if ((profile != EEsProfile && version >= 420) ||
(profile == EEsProfile && version >= 310))
InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangCompute, source,
infoSink, commonTable, symbolTables);
#ifndef GLSLANG_ANGLE
// check for ray tracing stages
if (profile != EEsProfile && version >= 450) {
InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangRayGen, source,
infoSink, commonTable, symbolTables);
InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangIntersect, source,
infoSink, commonTable, symbolTables);
InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangAnyHit, source,
infoSink, commonTable, symbolTables);
InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangClosestHit, source,
infoSink, commonTable, symbolTables);
InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangMiss, source,
infoSink, commonTable, symbolTables);
InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangCallable, source,
infoSink, commonTable, symbolTables);
}
// check for mesh
if ((profile != EEsProfile && version >= 450) ||
(profile == EEsProfile && version >= 320))
InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangMeshNV, source,
infoSink, commonTable, symbolTables);
// check for task
if ((profile != EEsProfile && version >= 450) ||
(profile == EEsProfile && version >= 320))
InitializeStageSymbolTable(*builtInParseables, version, profile, spvVersion, EShLangTaskNV, source,
infoSink, commonTable, symbolTables);
#endif // !GLSLANG_ANGLE
#endif // !GLSLANG_WEB
return true;
}
bool AddContextSpecificSymbols(const TBuiltInResource* resources, TInfoSink& infoSink, TSymbolTable& symbolTable, int version,
EProfile profile, const SpvVersion& spvVersion, EShLanguage language, EShSource source)
{
std::unique_ptr<TBuiltInParseables> builtInParseables(CreateBuiltInParseables(infoSink, source));
if (builtInParseables == nullptr)
return false;
builtInParseables->initialize(*resources, version, profile, spvVersion, language);
InitializeSymbolTable(builtInParseables->getCommonString(), version, profile, spvVersion, language, source, infoSink, symbolTable);
builtInParseables->identifyBuiltIns(version, profile, spvVersion, language, symbolTable, *resources);
return true;
}
//
// To do this on the fly, we want to leave the current state of our thread's
// pool allocator intact, so:
// - Switch to a new pool for parsing the built-ins
// - Do the parsing, which builds the symbol table, using the new pool
// - Switch to the process-global pool to save a copy of the resulting symbol table
// - Free up the new pool used to parse the built-ins
// - Switch back to the original thread's pool
//
// This only gets done the first time any thread needs a particular symbol table
// (lazy evaluation).
//
void SetupBuiltinSymbolTable(int version, EProfile profile, const SpvVersion& spvVersion, EShSource source)
{
TInfoSink infoSink;
// Make sure only one thread tries to do this at a time
glslang::GetGlobalLock();
// See if it's already been done for this version/profile combination
int versionIndex = MapVersionToIndex(version);
int spvVersionIndex = MapSpvVersionToIndex(spvVersion);
int profileIndex = MapProfileToIndex(profile);
int sourceIndex = MapSourceToIndex(source);
if (CommonSymbolTable[versionIndex][spvVersionIndex][profileIndex][sourceIndex][EPcGeneral]) {
glslang::ReleaseGlobalLock();
return;
}
// Switch to a new pool
TPoolAllocator& previousAllocator = GetThreadPoolAllocator();
TPoolAllocator* builtInPoolAllocator = new TPoolAllocator;
SetThreadPoolAllocator(builtInPoolAllocator);
// Dynamically allocate the local symbol tables so we can control when they are deallocated WRT when the pool is popped.
TSymbolTable* commonTable[EPcCount];
TSymbolTable* stageTables[EShLangCount];
for (int precClass = 0; precClass < EPcCount; ++precClass)
commonTable[precClass] = new TSymbolTable;
for (int stage = 0; stage < EShLangCount; ++stage)
stageTables[stage] = new TSymbolTable;
// Generate the local symbol tables using the new pool
InitializeSymbolTables(infoSink, commonTable, stageTables, version, profile, spvVersion, source);
// Switch to the process-global pool
SetThreadPoolAllocator(PerProcessGPA);
// Copy the local symbol tables from the new pool to the global tables using the process-global pool
for (int precClass = 0; precClass < EPcCount; ++precClass) {
if (! commonTable[precClass]->isEmpty()) {
CommonSymbolTable[versionIndex][spvVersionIndex][profileIndex][sourceIndex][precClass] = new TSymbolTable;
CommonSymbolTable[versionIndex][spvVersionIndex][profileIndex][sourceIndex][precClass]->copyTable(*commonTable[precClass]);
CommonSymbolTable[versionIndex][spvVersionIndex][profileIndex][sourceIndex][precClass]->readOnly();
}
}
for (int stage = 0; stage < EShLangCount; ++stage) {
if (! stageTables[stage]->isEmpty()) {
SharedSymbolTables[versionIndex][spvVersionIndex][profileIndex][sourceIndex][stage] = new TSymbolTable;
SharedSymbolTables[versionIndex][spvVersionIndex][profileIndex][sourceIndex][stage]->adoptLevels(*CommonSymbolTable
[versionIndex][spvVersionIndex][profileIndex][sourceIndex][CommonIndex(profile, (EShLanguage)stage)]);
SharedSymbolTables[versionIndex][spvVersionIndex][profileIndex][sourceIndex][stage]->copyTable(*stageTables[stage]);
SharedSymbolTables[versionIndex][spvVersionIndex][profileIndex][sourceIndex][stage]->readOnly();
}
}
// Clean up the local tables before deleting the pool they used.
for (int precClass = 0; precClass < EPcCount; ++precClass)
delete commonTable[precClass];
for (int stage = 0; stage < EShLangCount; ++stage)
delete stageTables[stage];
delete builtInPoolAllocator;
SetThreadPoolAllocator(&previousAllocator);
glslang::ReleaseGlobalLock();
}
// Function to Print all builtins
void DumpBuiltinSymbolTable(TInfoSink& infoSink, const TSymbolTable& symbolTable)
{
#if !defined(GLSLANG_WEB) && !defined(GLSLANG_ANGLE)
infoSink.debug << "BuiltinSymbolTable {\n";
symbolTable.dump(infoSink, true);
infoSink.debug << "}\n";
#endif
}
// Return true if the shader was correctly specified for version/profile/stage.
bool DeduceVersionProfile(TInfoSink& infoSink, EShLanguage stage, bool versionNotFirst, int defaultVersion,
EShSource source, int& version, EProfile& profile, const SpvVersion& spvVersion)
{
const int FirstProfileVersion = 150;
bool correct = true;
if (source == EShSourceHlsl) {
version = 500; // shader model; currently a characteristic of glslang, not the input
profile = ECoreProfile; // allow doubles in prototype parsing
return correct;
}
// Get a version...
if (version == 0) {
version = defaultVersion;
// infoSink.info.message(EPrefixWarning, "#version: statement missing; use #version on first line of shader");
}
// Get a good profile...
if (profile == ENoProfile) {
if (version == 300 || version == 310 || version == 320) {
correct = false;
infoSink.info.message(EPrefixError, "#version: versions 300, 310, and 320 require specifying the 'es' profile");
profile = EEsProfile;
} else if (version == 100)
profile = EEsProfile;
else if (version >= FirstProfileVersion)
profile = ECoreProfile;
else
profile = ENoProfile;
} else {
// a profile was provided...
if (version < 150) {
correct = false;
infoSink.info.message(EPrefixError, "#version: versions before 150 do not allow a profile token");
if (version == 100)
profile = EEsProfile;
else
profile = ENoProfile;
} else if (version == 300 || version == 310 || version == 320) {
if (profile != EEsProfile) {
correct = false;
infoSink.info.message(EPrefixError, "#version: versions 300, 310, and 320 support only the es profile");
}
profile = EEsProfile;
} else {
if (profile == EEsProfile) {
correct = false;
infoSink.info.message(EPrefixError, "#version: only version 300, 310, and 320 support the es profile");
if (version >= FirstProfileVersion)
profile = ECoreProfile;
else
profile = ENoProfile;
}
// else: typical desktop case... e.g., "#version 410 core"
}
}
// Fix version...
switch (version) {
// ES versions
case 100: break;
case 300: break;
case 310: break;
case 320: break;
// desktop versions
case 110: break;
case 120: break;
case 130: break;
case 140: break;
case 150: break;
case 330: break;
case 400: break;
case 410: break;
case 420: break;
case 430: break;
case 440: break;
case 450: break;
case 460: break;
// unknown version
default:
correct = false;
infoSink.info.message(EPrefixError, "version not supported");
if (profile == EEsProfile)
version = 310;
else {
version = 450;
profile = ECoreProfile;
}
break;
}
#if !defined(GLSLANG_WEB) && !defined(GLSLANG_ANGLE)
// 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;
case EShLangRayGen:
case EShLangIntersect:
case EShLangAnyHit:
case EShLangClosestHit:
case EShLangMiss:
case EShLangCallable:
if (profile == EEsProfile || version < 460) {
correct = false;
infoSink.info.message(EPrefixError, "#version: ray tracing shaders require non-es profile with version 460 or above");
version = 460;
}
break;
case EShLangMeshNV:
case EShLangTaskNV:
if ((profile == EEsProfile && version < 320) ||
(profile != EEsProfile && version < 450)) {
correct = false;
infoSink.info.message(EPrefixError, "#version: mesh/task shaders require es profile with version 320 or above, or non-es profile with version 450 or above");
version = profile == EEsProfile ? 320 : 450;
}
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 (version < 310) {
correct = false;
infoSink.info.message(EPrefixError, "#version: ES shaders for SPIR-V require version 310 or higher");
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 > 0 && 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;
}
}
#endif
return correct;
}
// There are multiple paths in for setting environment stuff.
// TEnvironment takes precedence, for what it sets, so sort all this out.
// Ideally, the internal code could be made to use TEnvironment, but for
// now, translate it to the historically used parameters.
void TranslateEnvironment(const TEnvironment* environment, EShMessages& messages, EShSource& source,
EShLanguage& stage, SpvVersion& spvVersion)
{
// Set up environmental defaults, first ignoring 'environment'.
if (messages & EShMsgSpvRules)
spvVersion.spv = EShTargetSpv_1_0;
if (messages & EShMsgVulkanRules) {
spvVersion.vulkan = EShTargetVulkan_1_0;
spvVersion.vulkanGlsl = 100;
} else if (spvVersion.spv != 0)
spvVersion.openGl = 100;
// Now, override, based on any content set in 'environment'.
// 'environment' must be cleared to ESh*None settings when items
// are not being set.
if (environment != nullptr) {
// input language
if (environment->input.languageFamily != EShSourceNone) {
stage = environment->input.stage;
switch (environment->input.dialect) {
case EShClientNone:
break;
case EShClientVulkan:
spvVersion.vulkanGlsl = environment->input.dialectVersion;
spvVersion.vulkanRelaxed = environment->input.vulkanRulesRelaxed;
break;
case EShClientOpenGL:
spvVersion.openGl = environment->input.dialectVersion;
break;
case EShClientCount:
assert(0);
break;
}
switch (environment->input.languageFamily) {
case EShSourceNone:
break;
case EShSourceGlsl:
source = EShSourceGlsl;
messages = static_cast<EShMessages>(messages & ~EShMsgReadHlsl);
break;
case EShSourceHlsl:
source = EShSourceHlsl;
messages = static_cast<EShMessages>(messages | EShMsgReadHlsl);
break;
case EShSourceCount:
assert(0);
break;
}
}
// client
switch (environment->client.client) {
case EShClientVulkan:
spvVersion.vulkan = environment->client.version;
break;
default:
break;
}
// generated code
switch (environment->target.language) {
case EshTargetSpv:
spvVersion.spv = environment->target.version;
break;
default:
break;
}
}
}
// Most processes are recorded when set in the intermediate representation,
// These are the few that are not.
void RecordProcesses(TIntermediate& intermediate, EShMessages messages, const std::string& sourceEntryPointName)
{
if ((messages & EShMsgRelaxedErrors) != 0)
intermediate.addProcess("relaxed-errors");
if ((messages & EShMsgSuppressWarnings) != 0)
intermediate.addProcess("suppress-warnings");
if ((messages & EShMsgKeepUncalled) != 0)
intermediate.addProcess("keep-uncalled");
if (sourceEntryPointName.size() > 0) {
intermediate.addProcess("source-entrypoint");
intermediate.addProcessArgument(sourceEntryPointName);
}
}
// 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 = "",
const TEnvironment* environment = nullptr) // optional way of fully setting all versions, overriding the above
{
// 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;
std::unique_ptr<size_t[]> lengths(new size_t[numTotal]);
std::unique_ptr<const char*[]> strings(new const char*[numTotal]);
std::unique_ptr<const char*[]> names(new const char*[numTotal]);
for (int s = 0; s < numStrings; ++s) {
strings[s + numPre] = shaderStrings[s];
if (inputLengths == nullptr || 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;
}
// Get all the stages, languages, clients, and other environment
// stuff sorted out.
EShSource sourceGuess = (messages & EShMsgReadHlsl) != 0 ? EShSourceHlsl : EShSourceGlsl;
SpvVersion spvVersion;
EShLanguage stage = compiler->getLanguage();
TranslateEnvironment(environment, messages, sourceGuess, stage, spvVersion);
#ifdef ENABLE_HLSL
EShSource source = sourceGuess;
if (environment != nullptr && environment->target.hlslFunctionality1)
intermediate.setHlslFunctionality1();
#else
const EShSource source = EShSourceGlsl;
#endif
// 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, after the system and user preambles.
glslang::TInputScanner userInput(numStrings, &strings[numPre], &lengths[numPre]);
int version = 0;
EProfile profile = ENoProfile;
bool versionNotFirstToken = false;
bool versionNotFirst = (source == EShSourceHlsl)
? true
: userInput.scanVersion(version, profile, versionNotFirstToken);
bool versionNotFound = version == 0;
if (forceDefaultVersionAndProfile && source == EShSourceGlsl) {
#if !defined(GLSLANG_WEB) && !defined(GLSLANG_ANGLE)
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";
}
#endif
if (versionNotFound) {
versionNotFirstToken = false;
versionNotFirst = false;
versionNotFound = false;
}
version = defaultVersion;
profile = defaultProfile;
}
bool goodVersion = DeduceVersionProfile(compiler->infoSink, stage,
versionNotFirst, defaultVersion, source, version, profile, spvVersion);
#ifdef GLSLANG_WEB
profile = EEsProfile;
version = 310;
#elif defined(GLSLANG_ANGLE)
profile = ECoreProfile;
version = 450;
#endif
bool versionWillBeError = (versionNotFound || (profile == EEsProfile && version >= 300 && versionNotFirst));
#if !defined(GLSLANG_WEB) && !defined(GLSLANG_ANGLE)
bool warnVersionNotFirst = false;
if (! versionWillBeError && versionNotFirstToken) {
if (messages & EShMsgRelaxedErrors)
warnVersionNotFirst = true;
else
versionWillBeError = true;
}
#endif
intermediate.setSource(source);
intermediate.setVersion(version);
intermediate.setProfile(profile);
intermediate.setSpv(spvVersion);
RecordProcesses(intermediate, messages, sourceEntryPointName);
if (spvVersion.vulkan > 0)
intermediate.setOriginUpperLeft();
#ifdef ENABLE_HLSL
if ((messages & EShMsgHlslOffsets) || source == EShSourceHlsl)
intermediate.setHlslOffsets();
#endif
if (messages & EShMsgDebugInfo) {
intermediate.setSourceFile(names[numPre]);
for (int s = 0; s < numStrings; ++s) {
// The string may not be null-terminated, so make sure we provide
// the length along with the string.
intermediate.addSourceText(strings[numPre + s], lengths[numPre + s]);
}
}
SetupBuiltinSymbolTable(version, profile, spvVersion, source);
TSymbolTable* cachedTable = SharedSymbolTables[MapVersionToIndex(version)]
[MapSpvVersionToIndex(spvVersion)]
[MapProfileToIndex(profile)]
[MapSourceToIndex(source)]
[stage];
// Dynamically allocate the symbol table so we can control when it is deallocated WRT the pool.
std::unique_ptr<TSymbolTable> symbolTable(new TSymbolTable);
if (cachedTable)
symbolTable->adoptLevels(*cachedTable);
if (intermediate.getUniqueId() != 0)
symbolTable->overwriteUniqueId(intermediate.getUniqueId());
// Add built-in symbols that are potentially context dependent;
// they get popped again further down.
if (! AddContextSpecificSymbols(resources, compiler->infoSink, *symbolTable, version, profile, spvVersion,
stage, source)) {
return false;
}
if (messages & EShMsgBuiltinSymbolTable)
DumpBuiltinSymbolTable(compiler->infoSink, *symbolTable);
//
// Now we can process the full shader under proper symbols and rules.
//
std::unique_ptr<TParseContextBase> parseContext(CreateParseContext(*symbolTable, intermediate, version, profile, source,
stage, 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 (source == EShSourceGlsl)
parseContext->setScanContext(&scanContext);
parseContext->setPpContext(&ppContext);
parseContext->setLimits(*resources);
if (! goodVersion)
parseContext->addError();
#if !defined(GLSLANG_WEB) && !defined(GLSLANG_ANGLE)
if (warnVersionNotFirst) {
TSourceLoc loc;
loc.init();
parseContext->warn(loc, "Illegal to have non-comment, non-whitespace tokens before #version", "#version", "");
}
#endif
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.get(), lengths.get(), names.get(), 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);
intermediate.setUniqueId(symbolTable->getMaxSymbolId());
return success;
}
#if !defined(GLSLANG_WEB) && !defined(GLSLANG_ANGLE)
// 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::string* 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 += '\n';
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 += '\n';
}
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 string for newlines.
std::string* 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.
//
// This is not an officially supported or fully working path.
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::string outputBuffer;
SourceLineSynchronizer lineSync(
std::bind(&TInputScanner::getLastValidSourceIndex, &input), &outputBuffer);
parseContext.setExtensionCallback([&lineSync, &outputBuffer](
int line, const char* extension, const char* behavior) {
lineSync.syncToLine(line);
outputBuffer += "#extension ";
outputBuffer += extension;
outputBuffer += " : ";
outputBuffer += behavior;
});
parseContext.setLineCallback([&lineSync, &outputBuffer, &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);
outputBuffer += "#line ";
outputBuffer += std::to_string(newLineNum);
if (hasSource) {
outputBuffer += ' ';
if (sourceName != nullptr) {
outputBuffer += '\"';
outputBuffer += sourceName;
outputBuffer += '\"';
} else {
outputBuffer += std::to_string(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;
}
outputBuffer += '\n';
// And we are at the next line of the #line directive now.
lineSync.setLineNum(newLineNum + 1);
});
parseContext.setVersionCallback(
[&lineSync, &outputBuffer](int line, int version, const char* str) {
lineSync.syncToLine(line);
outputBuffer += "#version ";
outputBuffer += std::to_string(version);
if (str) {
outputBuffer += ' ';
outputBuffer += str;
}
});
parseContext.setPragmaCallback([&lineSync, &outputBuffer](
int line, const glslang::TVector<glslang::TString>& ops) {
lineSync.syncToLine(line);
outputBuffer += "#pragma ";
for(size_t i = 0; i < ops.size(); ++i) {
outputBuffer += ops[i].c_str();
}
});
parseContext.setErrorCallback([&lineSync, &outputBuffer](
int line, const char* errorMessage) {
lineSync.syncToLine(line);
outputBuffer += "#error ";
outputBuffer += 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.
outputBuffer += 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)) {
outputBuffer += ' ';
}
lastToken = token;
if (token == PpAtomConstString)
outputBuffer += "\"";
outputBuffer += ppToken.name;
if (token == PpAtomConstString)
outputBuffer += "\"";
} while (true);
outputBuffer += '\n';
*outputString = std::move(outputBuffer);
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;
};
#endif
// 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";
}
#ifndef GLSLANG_ANGLE
if (messages & EShMsgAST)
intermediate.output(parseContext.infoSink, true);
#endif
return success;
}
};
#if !defined(GLSLANG_WEB) && !defined(GLSLANG_ANGLE)
// 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.
//
// NOTE: Doing just preprocessing to obtain a correct preprocessed shader string
// is not an officially supported or fully working path.
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,
TEnvironment* environment = nullptr)
{
DoPreprocessing parser(outputString);
return ProcessDeferred(compiler, shaderStrings, numStrings, inputLengths, stringNames,
preamble, optLevel, resources, defaultVersion,
defaultProfile, forceDefaultVersionAndProfile,
forwardCompatible, messages, intermediate, parser,
false, includer, "", environment);
}
#endif
//
// 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 = "",
TEnvironment* environment = nullptr)
{
DoFullParse parser;
return ProcessDeferred(compiler, shaderStrings, numStrings, inputLengths, stringNames,
preamble, optLevel, resources, defaultVersion,
defaultProfile, forceDefaultVersionAndProfile,
forwardCompatible, messages, intermediate, parser,
true, includer, sourceEntryPointName, environment);
}
} // 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;
glslang::GetGlobalLock();
++NumberOfClients;
if (PerProcessGPA == nullptr)
PerProcessGPA = new TPoolAllocator();
glslang::TScanContext::fillInKeywordMap();
#ifdef ENABLE_HLSL
glslang::HlslScanContext::fillInKeywordMap();
#endif
glslang::ReleaseGlobalLock();
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 ShFinalize()
{
glslang::GetGlobalLock();
--NumberOfClients;
assert(NumberOfClients >= 0);
bool finalize = NumberOfClients == 0;
if (! finalize) {
glslang::ReleaseGlobalLock();
return 1;
}
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 != nullptr) {
delete PerProcessGPA;
PerProcessGPA = nullptr;
}
glslang::TScanContext::deleteKeywordMap();
#ifdef ENABLE_HLSL
glslang::HlslScanContext::deleteKeywordMap();
#endif
glslang::ReleaseGlobalLock();
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;
SetThreadPoolAllocator(compiler->getPool());
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());
SetThreadPoolAllocator(linker->getPool());
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 (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 (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 (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 (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 (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 (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 {
Version GetVersion()
{
Version version;
version.major = GLSLANG_VERSION_MAJOR;
version.minor = GLSLANG_VERSION_MINOR;
version.patch = GLSLANG_VERSION_PATCH;
version.flavor = GLSLANG_VERSION_FLAVOR;
return version;
}
#define QUOTE(s) #s
#define STR(n) QUOTE(n)
const char* GetEsslVersionString()
{
return "OpenGL ES GLSL 3.20 glslang Khronos. " STR(GLSLANG_VERSION_MAJOR) "." STR(GLSLANG_VERSION_MINOR) "." STR(
GLSLANG_VERSION_PATCH) GLSLANG_VERSION_FLAVOR;
}
const char* GetGlslVersionString()
{
return "4.60 glslang Khronos. " STR(GLSLANG_VERSION_MAJOR) "." STR(GLSLANG_VERSION_MINOR) "." STR(
GLSLANG_VERSION_PATCH) GLSLANG_VERSION_FLAVOR;
}
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)
: stage(s), lengths(nullptr), stringNames(nullptr), preamble("")
{
pool = new TPoolAllocator;
infoSink = new TInfoSink;
compiler = new TDeferredCompiler(stage, *infoSink);
intermediate = new TIntermediate(s);
// clear environment (avoid constructors in them for use in a C interface)
environment.input.languageFamily = EShSourceNone;
environment.input.dialect = EShClientNone;
environment.input.vulkanRulesRelaxed = false;
environment.client.client = EShClientNone;
environment.target.language = EShTargetNone;
environment.target.hlslFunctionality1 = false;
}
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;
}
// Log initial settings and transforms.
// See comment for class TProcesses.
void TShader::addProcesses(const std::vector<std::string>& p)
{
intermediate->addProcesses(p);
}
void TShader::setUniqueId(unsigned long long id)
{
intermediate->setUniqueId(id);
}
void TShader::setInvertY(bool invert) { intermediate->setInvertY(invert); }
void TShader::setDxPositionW(bool invert) { intermediate->setDxPositionW(invert); }
void TShader::setEnhancedMsgs() { intermediate->setEnhancedMsgs(); }
void TShader::setNanMinMaxClamp(bool useNonNan) { intermediate->setNanMinMaxClamp(useNonNan); }
#ifndef GLSLANG_WEB
// Set binding base for given resource type
void TShader::setShiftBinding(TResourceType res, unsigned int base) {
intermediate->setShiftBinding(res, base);
}
// Set binding base for given resource type for a given binding set.
void TShader::setShiftBindingForSet(TResourceType res, unsigned int base, unsigned int set) {
intermediate->setShiftBindingForSet(res, base, set);
}
// Set binding base for sampler types
void TShader::setShiftSamplerBinding(unsigned int base) { setShiftBinding(EResSampler, base); }
// Set binding base for texture types (SRV)
void TShader::setShiftTextureBinding(unsigned int base) { setShiftBinding(EResTexture, base); }
// Set binding base for image types
void TShader::setShiftImageBinding(unsigned int base) { setShiftBinding(EResImage, base); }
// Set binding base for uniform buffer objects (CBV)
void TShader::setShiftUboBinding(unsigned int base) { setShiftBinding(EResUbo, base); }
// Synonym for setShiftUboBinding, to match HLSL language.
void TShader::setShiftCbufferBinding(unsigned int base) { setShiftBinding(EResUbo, base); }
// Set binding base for UAV (unordered access view)
void TShader::setShiftUavBinding(unsigned int base) { setShiftBinding(EResUav, base); }
// Set binding base for SSBOs
void TShader::setShiftSsboBinding(unsigned int base) { setShiftBinding(EResSsbo, base); }
// Enables binding automapping using TIoMapper
void TShader::setAutoMapBindings(bool map) { intermediate->setAutoMapBindings(map); }
// Enables position.Y output negation in vertex shader
// Fragile: currently within one stage: simple auto-assignment of location
void TShader::setAutoMapLocations(bool map) { intermediate->setAutoMapLocations(map); }
void TShader::addUniformLocationOverride(const char* name, int loc)
{
intermediate->addUniformLocationOverride(name, loc);
}
void TShader::setUniformLocationBase(int base)
{
intermediate->setUniformLocationBase(base);
}
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); }
#endif
void TShader::addBlockStorageOverride(const char* nameStr, TBlockStorageClass backing) { intermediate->addBlockStorageOverride(nameStr, backing); }
void TShader::setGlobalUniformBlockName(const char* name) { intermediate->setGlobalUniformBlockName(name); }
void TShader::setGlobalUniformSet(unsigned int set) { intermediate->setGlobalUniformSet(set); }
void TShader::setGlobalUniformBinding(unsigned int binding) { intermediate->setGlobalUniformBinding(binding); }
void TShader::setAtomicCounterBlockName(const char* name) { intermediate->setAtomicCounterBlockName(name); }
void TShader::setAtomicCounterBlockSet(unsigned int set) { intermediate->setAtomicCounterBlockSet(set); }
#ifdef ENABLE_HLSL
// See comment above TDefaultHlslIoMapper in iomapper.cpp:
void TShader::setHlslIoMapping(bool hlslIoMap) { intermediate->setHlslIoMapping(hlslIoMap); }
void TShader::setFlattenUniformArrays(bool flatten) { intermediate->setFlattenUniformArrays(flatten); }
#endif
//
// 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;
SetThreadPoolAllocator(pool);
if (! preamble)
preamble = "";
return CompileDeferred(compiler, strings, numStrings, lengths, stringNames,
preamble, EShOptNone, builtInResources, defaultVersion,
defaultProfile, forceDefaultVersionAndProfile,
forwardCompatible, messages, *intermediate, includer, sourceEntryPointName,
&environment);
}
#if !defined(GLSLANG_WEB) && !defined(GLSLANG_ANGLE)
// Fill in a string with the result of preprocessing ShaderStrings
// Returns true if all extensions, pragmas and version strings were valid.
//
// NOTE: Doing just preprocessing to obtain a correct preprocessed shader string
// is not an officially supported or fully working path.
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;
SetThreadPoolAllocator(pool);
if (! preamble)
preamble = "";
return PreprocessDeferred(compiler, strings, numStrings, lengths, stringNames, preamble,
EShOptNone, builtInResources, defaultVersion,
defaultProfile, forceDefaultVersionAndProfile,
forwardCompatible, message, includer, *intermediate, output_string,
&environment);
}
#endif
const char* TShader::getInfoLog()
{
return infoSink->info.c_str();
}
const char* TShader::getInfoDebugLog()
{
return infoSink->debug.c_str();
}
TProgram::TProgram() :
#if !defined(GLSLANG_WEB) && !defined(GLSLANG_ANGLE)
reflection(0),
#endif
linked(false)
{
pool = new TPoolAllocator;
infoSink = new TInfoSink;
for (int s = 0; s < EShLangCount; ++s) {
intermediate[s] = 0;
newedIntermediate[s] = false;
}
}
TProgram::~TProgram()
{
delete infoSink;
#if !defined(GLSLANG_WEB) && !defined(GLSLANG_ANGLE)
delete reflection;
#endif
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;
SetThreadPoolAllocator(pool);
for (int s = 0; s < EShLangCount; ++s) {
if (! linkStage((EShLanguage)s, messages))
error = true;
}
if (!error) {
if (! crossStageCheck(messages))
error = true;
}
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;
#if !defined(GLSLANG_WEB) && !defined(GLSLANG_ANGLE)
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());
intermediate[stage]->setLimits(firstIntermediate->getLimits());
if (firstIntermediate->getEnhancedMsgs())
intermediate[stage]->setEnhancedMsgs();
// 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);
}
#else
intermediate[stage] = stages[stage].front()->intermediate;
#endif
intermediate[stage]->finalCheck(*infoSink, (messages & EShMsgKeepUncalled) != 0);
#ifndef GLSLANG_ANGLE
if (messages & EShMsgAST)
intermediate[stage]->output(*infoSink, true);
#endif
return intermediate[stage]->getNumErrors() == 0;
}
//
// Check that there are no errors in linker objects accross stages
//
// Return true if no errors.
//
bool TProgram::crossStageCheck(EShMessages) {
// make temporary intermediates to hold the linkage symbols for each linking interface
// while we do the checks
// Independent interfaces are:
// all uniform variables and blocks
// all buffer blocks
// all in/out on a stage boundary
TVector<TIntermediate*> activeStages;
for (int s = 0; s < EShLangCount; ++s) {
if (intermediate[s])
activeStages.push_back(intermediate[s]);
}
// no extra linking if there is only one stage
if (! (activeStages.size() > 1))
return true;
// setup temporary tree to hold unfirom objects from different stages
TIntermediate* firstIntermediate = activeStages.front();
TIntermediate uniforms(EShLangCount,
firstIntermediate->getVersion(),
firstIntermediate->getProfile());
uniforms.setSpv(firstIntermediate->getSpv());
TIntermAggregate uniformObjects(EOpLinkerObjects);
TIntermAggregate root(EOpSequence);
root.getSequence().push_back(&uniformObjects);
uniforms.setTreeRoot(&root);
bool error = false;
// merge uniforms from all stages into a single intermediate
for (unsigned int i = 0; i < activeStages.size(); ++i) {
uniforms.mergeUniformObjects(*infoSink, *activeStages[i]);
}
error |= uniforms.getNumErrors() != 0;
// copy final definition of global block back into each stage
for (unsigned int i = 0; i < activeStages.size(); ++i) {
// We only want to merge into already existing global uniform blocks.
// A stage that doesn't already know about the global doesn't care about it's content.
// Otherwise we end up pointing to the same object between different stages
// and that will break binding/set remappings
bool mergeExistingOnly = true;
activeStages[i]->mergeGlobalUniformBlocks(*infoSink, uniforms, mergeExistingOnly);
}
// compare cross stage symbols for each stage boundary
for (unsigned int i = 1; i < activeStages.size(); ++i) {
activeStages[i - 1]->checkStageIO(*infoSink, *activeStages[i]);
error |= (activeStages[i - 1]->getNumErrors() != 0);
}
return !error;
}
const char* TProgram::getInfoLog()
{
return infoSink->info.c_str();
}
const char* TProgram::getInfoDebugLog()
{
return infoSink->debug.c_str();
}
#if !defined(GLSLANG_WEB) && !defined(GLSLANG_ANGLE)
//
// Reflection implementation.
//
bool TProgram::buildReflection(int opts)
{
if (! linked || reflection != nullptr)
return false;
int firstStage = EShLangVertex, lastStage = EShLangFragment;
if (opts & EShReflectionIntermediateIO) {
// if we're reflecting intermediate I/O, determine the first and last stage linked and use those as the
// boundaries for which stages generate pipeline inputs/outputs
firstStage = EShLangCount;
lastStage = 0;
for (int s = 0; s < EShLangCount; ++s) {
if (intermediate[s]) {
firstStage = std::min(firstStage, s);
lastStage = std::max(lastStage, s);
}
}
}
reflection = new TReflection((EShReflectionOptions)opts, (EShLanguage)firstStage, (EShLanguage)lastStage);
for (int s = 0; s < EShLangCount; ++s) {
if (intermediate[s]) {
if (! reflection->addStage((EShLanguage)s, *intermediate[s]))
return false;
}
}
return true;
}
unsigned TProgram::getLocalSize(int dim) const { return reflection->getLocalSize(dim); }
int TProgram::getReflectionIndex(const char* name) const { return reflection->getIndex(name); }
int TProgram::getReflectionPipeIOIndex(const char* name, const bool inOrOut) const
{ return reflection->getPipeIOIndex(name, inOrOut); }
int TProgram::getNumUniformVariables() const { return reflection->getNumUniforms(); }
const TObjectReflection& TProgram::getUniform(int index) const { return reflection->getUniform(index); }
int TProgram::getNumUniformBlocks() const { return reflection->getNumUniformBlocks(); }
const TObjectReflection& TProgram::getUniformBlock(int index) const { return reflection->getUniformBlock(index); }
int TProgram::getNumPipeInputs() const { return reflection->getNumPipeInputs(); }
const TObjectReflection& TProgram::getPipeInput(int index) const { return reflection->getPipeInput(index); }
int TProgram::getNumPipeOutputs() const { return reflection->getNumPipeOutputs(); }
const TObjectReflection& TProgram::getPipeOutput(int index) const { return reflection->getPipeOutput(index); }
int TProgram::getNumBufferVariables() const { return reflection->getNumBufferVariables(); }
const TObjectReflection& TProgram::getBufferVariable(int index) const { return reflection->getBufferVariable(index); }
int TProgram::getNumBufferBlocks() const { return reflection->getNumStorageBuffers(); }
const TObjectReflection& TProgram::getBufferBlock(int index) const { return reflection->getStorageBufferBlock(index); }
int TProgram::getNumAtomicCounters() const { return reflection->getNumAtomicCounters(); }
const TObjectReflection& TProgram::getAtomicCounter(int index) const { return reflection->getAtomicCounter(index); }
void TProgram::dumpReflection() { if (reflection != nullptr) reflection->dump(); }
//
// I/O mapping implementation.
//
bool TProgram::mapIO(TIoMapResolver* pResolver, TIoMapper* pIoMapper)
{
if (! linked)
return false;
TIoMapper* ioMapper = nullptr;
TIoMapper defaultIOMapper;
if (pIoMapper == nullptr)
ioMapper = &defaultIOMapper;
else
ioMapper = pIoMapper;
for (int s = 0; s < EShLangCount; ++s) {
if (intermediate[s]) {
if (! ioMapper->addStage((EShLanguage)s, *intermediate[s], *infoSink, pResolver))
return false;
}
}
return ioMapper->doMap(pResolver, *infoSink);
}
#endif // !GLSLANG_WEB && !GLSLANG_ANGLE
} // end namespace glslang
Reference in New Issue View Git Blame Copy Permalink