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StandAlone.cpp
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//
// Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
// Copyright (C) 2013-2016 LunarG, Inc.
// Copyright (C) 2016-2020 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.
//
// this only applies to the standalone wrapper, not the front end in general
#ifndef _CRT_SECURE_NO_WARNINGS
#define _CRT_SECURE_NO_WARNINGS
#endif
#include "ResourceLimits.h"
#include "Worklist.h"
#include "DirStackFileIncluder.h"
#include "./../glslang/Include/ShHandle.h"
#include "./../glslang/Include/revision.h"
#include "./../glslang/Public/ShaderLang.h"
#include "../SPIRV/GlslangToSpv.h"
#include "../SPIRV/GLSL.std.450.h"
#include "../SPIRV/doc.h"
#include "../SPIRV/disassemble.h"
#include <cstring>
#include <cstdlib>
#include <cctype>
#include <cmath>
#include <array>
#include <map>
#include <memory>
#include <thread>
#include "../glslang/OSDependent/osinclude.h"
extern "C" {
SH_IMPORT_EXPORT void ShOutputHtml();
}
// Command-line options
enum TOptions {
EOptionNone = 0,
EOptionIntermediate = (1 << 0),
EOptionSuppressInfolog = (1 << 1),
EOptionMemoryLeakMode = (1 << 2),
EOptionRelaxedErrors = (1 << 3),
EOptionGiveWarnings = (1 << 4),
EOptionLinkProgram = (1 << 5),
EOptionMultiThreaded = (1 << 6),
EOptionDumpConfig = (1 << 7),
EOptionDumpReflection = (1 << 8),
EOptionSuppressWarnings = (1 << 9),
EOptionDumpVersions = (1 << 10),
EOptionSpv = (1 << 11),
EOptionHumanReadableSpv = (1 << 12),
EOptionVulkanRules = (1 << 13),
EOptionDefaultDesktop = (1 << 14),
EOptionOutputPreprocessed = (1 << 15),
EOptionOutputHexadecimal = (1 << 16),
EOptionReadHlsl = (1 << 17),
EOptionCascadingErrors = (1 << 18),
EOptionAutoMapBindings = (1 << 19),
EOptionFlattenUniformArrays = (1 << 20),
EOptionNoStorageFormat = (1 << 21),
EOptionKeepUncalled = (1 << 22),
EOptionHlslOffsets = (1 << 23),
EOptionHlslIoMapping = (1 << 24),
EOptionAutoMapLocations = (1 << 25),
EOptionDebug = (1 << 26),
EOptionStdin = (1 << 27),
EOptionOptimizeDisable = (1 << 28),
EOptionOptimizeSize = (1 << 29),
EOptionInvertY = (1 << 30),
EOptionDumpBareVersion = (1 << 31),
};
bool targetHlslFunctionality1 = false;
bool SpvToolsDisassembler = false;
bool SpvToolsValidate = false;
bool NaNClamp = false;
//
// Return codes from main/exit().
//
enum TFailCode {
ESuccess = 0,
EFailUsage,
EFailCompile,
EFailLink,
EFailCompilerCreate,
EFailThreadCreate,
EFailLinkerCreate
};
//
// Forward declarations.
//
EShLanguage FindLanguage(const std::string& name, bool parseSuffix=true);
void CompileFile(const char* fileName, ShHandle);
void usage();
char* ReadFileData(const char* fileName);
void FreeFileData(char* data);
void InfoLogMsg(const char* msg, const char* name, const int num);
// Globally track if any compile or link failure.
bool CompileFailed = false;
bool LinkFailed = false;
// array of unique places to leave the shader names and infologs for the asynchronous compiles
std::vector<std::unique_ptr<glslang::TWorkItem>> WorkItems;
TBuiltInResource Resources;
std::string ConfigFile;
//
// Parse either a .conf file provided by the user or the default from glslang::DefaultTBuiltInResource
//
void ProcessConfigFile()
{
if (ConfigFile.size() == 0)
Resources = glslang::DefaultTBuiltInResource;
#ifndef GLSLANG_WEB
else {
char* configString = ReadFileData(ConfigFile.c_str());
glslang::DecodeResourceLimits(&Resources, configString);
FreeFileData(configString);
}
#endif
}
int ReflectOptions = EShReflectionDefault;
int Options = 0;
const char* ExecutableName = nullptr;
const char* binaryFileName = nullptr;
const char* entryPointName = nullptr;
const char* sourceEntryPointName = nullptr;
const char* shaderStageName = nullptr;
const char* variableName = nullptr;
bool HlslEnable16BitTypes = false;
bool HlslDX9compatible = false;
bool DumpBuiltinSymbols = false;
std::vector<std::string> IncludeDirectoryList;
// Source environment
// (source 'Client' is currently the same as target 'Client')
int ClientInputSemanticsVersion = 100;
// Target environment
glslang::EShClient Client = glslang::EShClientNone; // will stay EShClientNone if only validating
glslang::EShTargetClientVersion ClientVersion; // not valid until Client is set
glslang::EShTargetLanguage TargetLanguage = glslang::EShTargetNone;
glslang::EShTargetLanguageVersion TargetVersion; // not valid until TargetLanguage is set
std::vector<std::string> Processes; // what should be recorded by OpModuleProcessed, or equivalent
// Per descriptor-set binding base data
typedef std::map<unsigned int, unsigned int> TPerSetBaseBinding;
std::vector<std::pair<std::string, int>> uniformLocationOverrides;
int uniformBase = 0;
std::array<std::array<unsigned int, EShLangCount>, glslang::EResCount> baseBinding;
std::array<std::array<TPerSetBaseBinding, EShLangCount>, glslang::EResCount> baseBindingForSet;
std::array<std::vector<std::string>, EShLangCount> baseResourceSetBinding;
// Add things like "#define ..." to a preamble to use in the beginning of the shader.
class TPreamble {
public:
TPreamble() { }
bool isSet() const { return text.size() > 0; }
const char* get() const { return text.c_str(); }
// #define...
void addDef(std::string def)
{
text.append("#define ");
fixLine(def);
Processes.push_back("define-macro ");
Processes.back().append(def);
// The first "=" needs to turn into a space
const size_t equal = def.find_first_of("=");
if (equal != def.npos)
def[equal] = ' ';
text.append(def);
text.append("\n");
}
// #undef...
void addUndef(std::string undef)
{
text.append("#undef ");
fixLine(undef);
Processes.push_back("undef-macro ");
Processes.back().append(undef);
text.append(undef);
text.append("\n");
}
protected:
void fixLine(std::string& line)
{
// Can't go past a newline in the line
const size_t end = line.find_first_of("\n");
if (end != line.npos)
line = line.substr(0, end);
}
std::string text; // contents of preamble
};
TPreamble UserPreamble;
//
// Create the default name for saving a binary if -o is not provided.
//
const char* GetBinaryName(EShLanguage stage)
{
const char* name;
if (binaryFileName == nullptr) {
switch (stage) {
case EShLangVertex: name = "vert.spv"; break;
case EShLangTessControl: name = "tesc.spv"; break;
case EShLangTessEvaluation: name = "tese.spv"; break;
case EShLangGeometry: name = "geom.spv"; break;
case EShLangFragment: name = "frag.spv"; break;
case EShLangCompute: name = "comp.spv"; break;
case EShLangRayGen: name = "rgen.spv"; break;
case EShLangIntersect: name = "rint.spv"; break;
case EShLangAnyHit: name = "rahit.spv"; break;
case EShLangClosestHit: name = "rchit.spv"; break;
case EShLangMiss: name = "rmiss.spv"; break;
case EShLangCallable: name = "rcall.spv"; break;
case EShLangMeshNV: name = "mesh.spv"; break;
case EShLangTaskNV: name = "task.spv"; break;
default: name = "unknown"; break;
}
} else
name = binaryFileName;
return name;
}
//
// *.conf => this is a config file that can set limits/resources
//
bool SetConfigFile(const std::string& name)
{
if (name.size() < 5)
return false;
if (name.compare(name.size() - 5, 5, ".conf") == 0) {
ConfigFile = name;
return true;
}
return false;
}
//
// Give error and exit with failure code.
//
void Error(const char* message, const char* detail = nullptr)
{
fprintf(stderr, "%s: Error: ", ExecutableName);
if (detail != nullptr)
fprintf(stderr, "%s: ", detail);
fprintf(stderr, "%s (use -h for usage)\n", message);
exit(EFailUsage);
}
//
// Process an optional binding base of one the forms:
// --argname [stage] base // base for stage (if given) or all stages (if not)
// --argname [stage] [base set]... // set/base pairs: set the base for given binding set.
// Where stage is one of the forms accepted by FindLanguage, and base is an integer
//
void ProcessBindingBase(int& argc, char**& argv, glslang::TResourceType res)
{
if (argc < 2)
usage();
EShLanguage lang = EShLangCount;
int singleBase = 0;
TPerSetBaseBinding perSetBase;
int arg = 1;
// Parse stage, if given
if (!isdigit(argv[arg][0])) {
if (argc < 3) // this form needs one more argument
usage();
lang = FindLanguage(argv[arg++], false);
}
if ((argc - arg) > 2 && isdigit(argv[arg+0][0]) && isdigit(argv[arg+1][0])) {
// Parse a per-set binding base
while ((argc - arg) > 2 && isdigit(argv[arg+0][0]) && isdigit(argv[arg+1][0])) {
const int baseNum = atoi(argv[arg++]);
const int setNum = atoi(argv[arg++]);
perSetBase[setNum] = baseNum;
}
} else {
// Parse single binding base
singleBase = atoi(argv[arg++]);
}
argc -= (arg-1);
argv += (arg-1);
// Set one or all languages
const int langMin = (lang < EShLangCount) ? lang+0 : 0;
const int langMax = (lang < EShLangCount) ? lang+1 : EShLangCount;
for (int lang = langMin; lang < langMax; ++lang) {
if (!perSetBase.empty())
baseBindingForSet[res][lang].insert(perSetBase.begin(), perSetBase.end());
else
baseBinding[res][lang] = singleBase;
}
}
void ProcessResourceSetBindingBase(int& argc, char**& argv, std::array<std::vector<std::string>, EShLangCount>& base)
{
if (argc < 2)
usage();
if (!isdigit(argv[1][0])) {
if (argc < 3) // this form needs one more argument
usage();
// Parse form: --argname stage [regname set base...], or:
// --argname stage set
const EShLanguage lang = FindLanguage(argv[1], false);
argc--;
argv++;
while (argc > 1 && argv[1] != nullptr && argv[1][0] != '-') {
base[lang].push_back(argv[1]);
argc--;
argv++;
}
// Must have one arg, or a multiple of three (for [regname set binding] triples)
if (base[lang].size() != 1 && (base[lang].size() % 3) != 0)
usage();
} else {
// Parse form: --argname set
for (int lang=0; lang<EShLangCount; ++lang)
base[lang].push_back(argv[1]);
argc--;
argv++;
}
}
//
// Do all command-line argument parsing. This includes building up the work-items
// to be processed later, and saving all the command-line options.
//
// Does not return (it exits) if command-line is fatally flawed.
//
void ProcessArguments(std::vector<std::unique_ptr<glslang::TWorkItem>>& workItems, int argc, char* argv[])
{
for (int res = 0; res < glslang::EResCount; ++res)
baseBinding[res].fill(0);
ExecutableName = argv[0];
workItems.reserve(argc);
const auto bumpArg = [&]() {
if (argc > 0) {
argc--;
argv++;
}
};
// read a string directly attached to a single-letter option
const auto getStringOperand = [&](const char* desc) {
if (argv[0][2] == 0) {
printf("%s must immediately follow option (no spaces)\n", desc);
exit(EFailUsage);
}
return argv[0] + 2;
};
// read a number attached to a single-letter option
const auto getAttachedNumber = [&](const char* desc) {
int num = atoi(argv[0] + 2);
if (num == 0) {
printf("%s: expected attached non-0 number\n", desc);
exit(EFailUsage);
}
return num;
};
// minimum needed (without overriding something else) to target Vulkan SPIR-V
const auto setVulkanSpv = []() {
if (Client == glslang::EShClientNone)
ClientVersion = glslang::EShTargetVulkan_1_0;
Client = glslang::EShClientVulkan;
Options |= EOptionSpv;
Options |= EOptionVulkanRules;
Options |= EOptionLinkProgram;
};
// minimum needed (without overriding something else) to target OpenGL SPIR-V
const auto setOpenGlSpv = []() {
if (Client == glslang::EShClientNone)
ClientVersion = glslang::EShTargetOpenGL_450;
Client = glslang::EShClientOpenGL;
Options |= EOptionSpv;
Options |= EOptionLinkProgram;
// undo a -H default to Vulkan
Options &= ~EOptionVulkanRules;
};
const auto getUniformOverride = [getStringOperand]() {
const char *arg = getStringOperand("-u<name>:<location>");
const char *split = strchr(arg, ':');
if (split == NULL) {
printf("%s: missing location\n", arg);
exit(EFailUsage);
}
errno = 0;
int location = ::strtol(split + 1, NULL, 10);
if (errno) {
printf("%s: invalid location\n", arg);
exit(EFailUsage);
}
return std::make_pair(std::string(arg, split - arg), location);
};
for (bumpArg(); argc >= 1; bumpArg()) {
if (argv[0][0] == '-') {
switch (argv[0][1]) {
case '-':
{
std::string lowerword(argv[0]+2);
std::transform(lowerword.begin(), lowerword.end(), lowerword.begin(), ::tolower);
// handle --word style options
if (lowerword == "auto-map-bindings" || // synonyms
lowerword == "auto-map-binding" ||
lowerword == "amb") {
Options |= EOptionAutoMapBindings;
} else if (lowerword == "auto-map-locations" || // synonyms
lowerword == "aml") {
Options |= EOptionAutoMapLocations;
} else if (lowerword == "uniform-base") {
if (argc <= 1)
Error("no <base> provided", lowerword.c_str());
uniformBase = ::strtol(argv[1], NULL, 10);
bumpArg();
break;
} else if (lowerword == "client") {
if (argc > 1) {
if (strcmp(argv[1], "vulkan100") == 0)
setVulkanSpv();
else if (strcmp(argv[1], "opengl100") == 0)
setOpenGlSpv();
else
Error("expects vulkan100 or opengl100", lowerword.c_str());
} else
Error("expects vulkan100 or opengl100", lowerword.c_str());
bumpArg();
} else if (lowerword == "define-macro" ||
lowerword == "d") {
if (argc > 1)
UserPreamble.addDef(argv[1]);
else
Error("expects <name[=def]>", argv[0]);
bumpArg();
} else if (lowerword == "dump-builtin-symbols") {
DumpBuiltinSymbols = true;
} else if (lowerword == "entry-point") {
entryPointName = argv[1];
if (argc <= 1)
Error("no <name> provided", lowerword.c_str());
bumpArg();
} else if (lowerword == "flatten-uniform-arrays" || // synonyms
lowerword == "flatten-uniform-array" ||
lowerword == "fua") {
Options |= EOptionFlattenUniformArrays;
} else if (lowerword == "hlsl-offsets") {
Options |= EOptionHlslOffsets;
} else if (lowerword == "hlsl-iomap" ||
lowerword == "hlsl-iomapper" ||
lowerword == "hlsl-iomapping") {
Options |= EOptionHlslIoMapping;
} else if (lowerword == "hlsl-enable-16bit-types") {
HlslEnable16BitTypes = true;
} else if (lowerword == "hlsl-dx9-compatible") {
HlslDX9compatible = true;
} else if (lowerword == "invert-y" || // synonyms
lowerword == "iy") {
Options |= EOptionInvertY;
} else if (lowerword == "keep-uncalled" || // synonyms
lowerword == "ku") {
Options |= EOptionKeepUncalled;
} else if (lowerword == "nan-clamp") {
NaNClamp = true;
} else if (lowerword == "no-storage-format" || // synonyms
lowerword == "nsf") {
Options |= EOptionNoStorageFormat;
} else if (lowerword == "relaxed-errors") {
Options |= EOptionRelaxedErrors;
} else if (lowerword == "reflect-strict-array-suffix") {
ReflectOptions |= EShReflectionStrictArraySuffix;
} else if (lowerword == "reflect-basic-array-suffix") {
ReflectOptions |= EShReflectionBasicArraySuffix;
} else if (lowerword == "reflect-intermediate-io") {
ReflectOptions |= EShReflectionIntermediateIO;
} else if (lowerword == "reflect-separate-buffers") {
ReflectOptions |= EShReflectionSeparateBuffers;
} else if (lowerword == "reflect-all-block-variables") {
ReflectOptions |= EShReflectionAllBlockVariables;
} else if (lowerword == "reflect-unwrap-io-blocks") {
ReflectOptions |= EShReflectionUnwrapIOBlocks;
} else if (lowerword == "resource-set-bindings" || // synonyms
lowerword == "resource-set-binding" ||
lowerword == "rsb") {
ProcessResourceSetBindingBase(argc, argv, baseResourceSetBinding);
} else if (lowerword == "shift-image-bindings" || // synonyms
lowerword == "shift-image-binding" ||
lowerword == "sib") {
ProcessBindingBase(argc, argv, glslang::EResImage);
} else if (lowerword == "shift-sampler-bindings" || // synonyms
lowerword == "shift-sampler-binding" ||
lowerword == "ssb") {
ProcessBindingBase(argc, argv, glslang::EResSampler);
} else if (lowerword == "shift-uav-bindings" || // synonyms
lowerword == "shift-uav-binding" ||
lowerword == "suavb") {
ProcessBindingBase(argc, argv, glslang::EResUav);
} else if (lowerword == "shift-texture-bindings" || // synonyms
lowerword == "shift-texture-binding" ||
lowerword == "stb") {
ProcessBindingBase(argc, argv, glslang::EResTexture);
} else if (lowerword == "shift-ubo-bindings" || // synonyms
lowerword == "shift-ubo-binding" ||
lowerword == "shift-cbuffer-bindings" ||
lowerword == "shift-cbuffer-binding" ||
lowerword == "sub" ||
lowerword == "scb") {
ProcessBindingBase(argc, argv, glslang::EResUbo);
} else if (lowerword == "shift-ssbo-bindings" || // synonyms
lowerword == "shift-ssbo-binding" ||
lowerword == "sbb") {
ProcessBindingBase(argc, argv, glslang::EResSsbo);
} else if (lowerword == "source-entrypoint" || // synonyms
lowerword == "sep") {
if (argc <= 1)
Error("no <entry-point> provided", lowerword.c_str());
sourceEntryPointName = argv[1];
bumpArg();
break;
} else if (lowerword == "spirv-dis") {
SpvToolsDisassembler = true;
} else if (lowerword == "spirv-val") {
SpvToolsValidate = true;
} else if (lowerword == "stdin") {
Options |= EOptionStdin;
shaderStageName = argv[1];
} else if (lowerword == "suppress-warnings") {
Options |= EOptionSuppressWarnings;
} else if (lowerword == "target-env") {
if (argc > 1) {
if (strcmp(argv[1], "vulkan1.0") == 0) {
setVulkanSpv();
ClientVersion = glslang::EShTargetVulkan_1_0;
} else if (strcmp(argv[1], "vulkan1.1") == 0) {
setVulkanSpv();
ClientVersion = glslang::EShTargetVulkan_1_1;
} else if (strcmp(argv[1], "vulkan1.2") == 0) {
setVulkanSpv();
ClientVersion = glslang::EShTargetVulkan_1_2;
} else if (strcmp(argv[1], "opengl") == 0) {
setOpenGlSpv();
ClientVersion = glslang::EShTargetOpenGL_450;
} else if (strcmp(argv[1], "spirv1.0") == 0) {
TargetLanguage = glslang::EShTargetSpv;
TargetVersion = glslang::EShTargetSpv_1_0;
} else if (strcmp(argv[1], "spirv1.1") == 0) {
TargetLanguage = glslang::EShTargetSpv;
TargetVersion = glslang::EShTargetSpv_1_1;
} else if (strcmp(argv[1], "spirv1.2") == 0) {
TargetLanguage = glslang::EShTargetSpv;
TargetVersion = glslang::EShTargetSpv_1_2;
} else if (strcmp(argv[1], "spirv1.3") == 0) {
TargetLanguage = glslang::EShTargetSpv;
TargetVersion = glslang::EShTargetSpv_1_3;
} else if (strcmp(argv[1], "spirv1.4") == 0) {
TargetLanguage = glslang::EShTargetSpv;
TargetVersion = glslang::EShTargetSpv_1_4;
} else if (strcmp(argv[1], "spirv1.5") == 0) {
TargetLanguage = glslang::EShTargetSpv;
TargetVersion = glslang::EShTargetSpv_1_5;
} else
Error("--target-env expected one of: vulkan1.0, vulkan1.1, vulkan1.2, opengl,\n"
"spirv1.0, spirv1.1, spirv1.2, spirv1.3, spirv1.4, or spirv1.5");
}
bumpArg();
} else if (lowerword == "undef-macro" ||
lowerword == "u") {
if (argc > 1)
UserPreamble.addUndef(argv[1]);
else
Error("expects <name>", argv[0]);
bumpArg();
} else if (lowerword == "variable-name" || // synonyms
lowerword == "vn") {
Options |= EOptionOutputHexadecimal;
if (argc <= 1)
Error("no <C-variable-name> provided", lowerword.c_str());
variableName = argv[1];
bumpArg();
break;
} else if (lowerword == "version") {
Options |= EOptionDumpVersions;
} else if (lowerword == "help") {
usage();
break;
} else {
Error("unrecognized command-line option", argv[0]);
}
}
break;
case 'C':
Options |= EOptionCascadingErrors;
break;
case 'D':
if (argv[0][2] == 0)
Options |= EOptionReadHlsl;
else
UserPreamble.addDef(getStringOperand("-D<name[=def]>"));
break;
case 'u':
uniformLocationOverrides.push_back(getUniformOverride());
break;
case 'E':
Options |= EOptionOutputPreprocessed;
break;
case 'G':
// OpenGL client
setOpenGlSpv();
if (argv[0][2] != 0)
ClientInputSemanticsVersion = getAttachedNumber("-G<num> client input semantics");
break;
case 'H':
Options |= EOptionHumanReadableSpv;
if ((Options & EOptionSpv) == 0) {
// default to Vulkan
setVulkanSpv();
}
break;
case 'I':
IncludeDirectoryList.push_back(getStringOperand("-I<dir> include path"));
break;
case 'O':
if (argv[0][2] == 'd')
Options |= EOptionOptimizeDisable;
else if (argv[0][2] == 's')
#if ENABLE_OPT
Options |= EOptionOptimizeSize;
#else
Error("-Os not available; optimizer not linked");
#endif
else
Error("unknown -O option");
break;
case 'S':
if (argc <= 1)
Error("no <stage> specified for -S");
shaderStageName = argv[1];
bumpArg();
break;
case 'U':
UserPreamble.addUndef(getStringOperand("-U<name>"));
break;
case 'V':
setVulkanSpv();
if (argv[0][2] != 0)
ClientInputSemanticsVersion = getAttachedNumber("-V<num> client input semantics");
break;
case 'c':
Options |= EOptionDumpConfig;
break;
case 'd':
if (strncmp(&argv[0][1], "dumpversion", strlen(&argv[0][1]) + 1) == 0 ||
strncmp(&argv[0][1], "dumpfullversion", strlen(&argv[0][1]) + 1) == 0)
Options |= EOptionDumpBareVersion;
else
Options |= EOptionDefaultDesktop;
break;
case 'e':
entryPointName = argv[1];
if (argc <= 1)
Error("no <name> provided for -e");
bumpArg();
break;
case 'f':
if (strcmp(&argv[0][2], "hlsl_functionality1") == 0)
targetHlslFunctionality1 = true;
else
Error("-f: expected hlsl_functionality1");
break;
case 'g':
Options |= EOptionDebug;
break;
case 'h':
usage();
break;
case 'i':
Options |= EOptionIntermediate;
break;
case 'l':
Options |= EOptionLinkProgram;
break;
case 'm':
Options |= EOptionMemoryLeakMode;
break;
case 'o':
if (argc <= 1)
Error("no <file> provided for -o");
binaryFileName = argv[1];
bumpArg();
break;
case 'q':
Options |= EOptionDumpReflection;
break;
case 'r':
Options |= EOptionRelaxedErrors;
break;
case 's':
Options |= EOptionSuppressInfolog;
break;
case 't':
Options |= EOptionMultiThreaded;
break;
case 'v':
Options |= EOptionDumpVersions;
break;
case 'w':
Options |= EOptionSuppressWarnings;
break;
case 'x':
Options |= EOptionOutputHexadecimal;
break;
default:
Error("unrecognized command-line option", argv[0]);
break;
}
} else {
std::string name(argv[0]);
if (! SetConfigFile(name)) {
workItems.push_back(std::unique_ptr<glslang::TWorkItem>(new glslang::TWorkItem(name)));
}
}
}
// Make sure that -S is always specified if --stdin is specified
if ((Options & EOptionStdin) && shaderStageName == nullptr)
Error("must provide -S when --stdin is given");
// Make sure that -E is not specified alongside linking (which includes SPV generation)
// Or things that require linking
if (Options & EOptionOutputPreprocessed) {
if (Options & EOptionLinkProgram)
Error("can't use -E when linking is selected");
if (Options & EOptionDumpReflection)
Error("reflection requires linking, which can't be used when -E when is selected");
}
// reflection requires linking
if ((Options & EOptionDumpReflection) && !(Options & EOptionLinkProgram))
Error("reflection requires -l for linking");
// -o or -x makes no sense if there is no target binary
if (binaryFileName && (Options & EOptionSpv) == 0)
Error("no binary generation requested (e.g., -V)");
if ((Options & EOptionFlattenUniformArrays) != 0 &&
(Options & EOptionReadHlsl) == 0)
Error("uniform array flattening only valid when compiling HLSL source.");
// rationalize client and target language
if (TargetLanguage == glslang::EShTargetNone) {
switch (ClientVersion) {
case glslang::EShTargetVulkan_1_0:
TargetLanguage = glslang::EShTargetSpv;
TargetVersion = glslang::EShTargetSpv_1_0;
break;
case glslang::EShTargetVulkan_1_1:
TargetLanguage = glslang::EShTargetSpv;
TargetVersion = glslang::EShTargetSpv_1_3;
break;
case glslang::EShTargetVulkan_1_2:
TargetLanguage = glslang::EShTargetSpv;
TargetVersion = glslang::EShTargetSpv_1_5;
break;
case glslang::EShTargetOpenGL_450:
TargetLanguage = glslang::EShTargetSpv;
TargetVersion = glslang::EShTargetSpv_1_0;
break;
default:
break;
}
}
if (TargetLanguage != glslang::EShTargetNone && Client == glslang::EShClientNone)
Error("To generate SPIR-V, also specify client semantics. See -G and -V.");
}
//
// Translate the meaningful subset of command-line options to parser-behavior options.
//
void SetMessageOptions(EShMessages& messages)
{
if (Options & EOptionRelaxedErrors)
messages = (EShMessages)(messages | EShMsgRelaxedErrors);
if (Options & EOptionIntermediate)
messages = (EShMessages)(messages | EShMsgAST);
if (Options & EOptionSuppressWarnings)
messages = (EShMessages)(messages | EShMsgSuppressWarnings);
if (Options & EOptionSpv)
messages = (EShMessages)(messages | EShMsgSpvRules);
if (Options & EOptionVulkanRules)
messages = (EShMessages)(messages | EShMsgVulkanRules);
if (Options & EOptionOutputPreprocessed)
messages = (EShMessages)(messages | EShMsgOnlyPreprocessor);
if (Options & EOptionReadHlsl)
messages = (EShMessages)(messages | EShMsgReadHlsl);
if (Options & EOptionCascadingErrors)
messages = (EShMessages)(messages | EShMsgCascadingErrors);
if (Options & EOptionKeepUncalled)
messages = (EShMessages)(messages | EShMsgKeepUncalled);
if (Options & EOptionHlslOffsets)
messages = (EShMessages)(messages | EShMsgHlslOffsets);
if (Options & EOptionDebug)
messages = (EShMessages)(messages | EShMsgDebugInfo);
if (HlslEnable16BitTypes)
messages = (EShMessages)(messages | EShMsgHlslEnable16BitTypes);
if ((Options & EOptionOptimizeDisable) || !ENABLE_OPT)
messages = (EShMessages)(messages | EShMsgHlslLegalization);
if (HlslDX9compatible)
messages = (EShMessages)(messages | EShMsgHlslDX9Compatible);
if (DumpBuiltinSymbols)
messages = (EShMessages)(messages | EShMsgBuiltinSymbolTable);
}
//
// Thread entry point, for non-linking asynchronous mode.
//
void CompileShaders(glslang::TWorklist& worklist)
{
if (Options & EOptionDebug)
Error("cannot generate debug information unless linking to generate code");
glslang::TWorkItem* workItem;
if (Options & EOptionStdin) {
if (worklist.remove(workItem)) {
ShHandle compiler = ShConstructCompiler(FindLanguage("stdin"), Options);
if (compiler == nullptr)
return;
CompileFile("stdin", compiler);
if (! (Options & EOptionSuppressInfolog))
workItem->results = ShGetInfoLog(compiler);
ShDestruct(compiler);
}
} else {
while (worklist.remove(workItem)) {
ShHandle compiler = ShConstructCompiler(FindLanguage(workItem->name), Options);
if (compiler == 0)
return;
CompileFile(workItem->name.c_str(), compiler);
if (! (Options & EOptionSuppressInfolog))
workItem->results = ShGetInfoLog(compiler);
ShDestruct(compiler);
}
}
}
// Outputs the given string, but only if it is non-null and non-empty.
// This prevents erroneous newlines from appearing.
void PutsIfNonEmpty(const char* str)
{
if (str && str[0]) {
puts(str);
}
}
// Outputs the given string to stderr, but only if it is non-null and non-empty.
// This prevents erroneous newlines from appearing.
void StderrIfNonEmpty(const char* str)
{
if (str && str[0])
fprintf(stderr, "%s\n", str);
}
// Simple bundling of what makes a compilation unit for ease in passing around,
// and separation of handling file IO versus API (programmatic) compilation.
struct ShaderCompUnit {
EShLanguage stage;
static const int maxCount = 1;
int count; // live number of strings/names
const char* text[maxCount]; // memory owned/managed externally
std::string fileName[maxCount]; // hold's the memory, but...
const char* fileNameList[maxCount]; // downstream interface wants pointers
ShaderCompUnit(EShLanguage stage) : stage(stage), count(0) { }
ShaderCompUnit(const ShaderCompUnit& rhs)
{
stage = rhs.stage;
count = rhs.count;
for (int i = 0; i < count; ++i) {
fileName[i] = rhs.fileName[i];
text[i] = rhs.text[i];
fileNameList[i] = rhs.fileName[i].c_str();
}
}
void addString(std::string& ifileName, const char* itext)
{
assert(count < maxCount);
fileName[count] = ifileName;
text[count] = itext;
fileNameList[count] = fileName[count].c_str();
++count;
}
};
//
// For linking mode: Will independently parse each compilation unit, but then put them
// in the same program and link them together, making at most one linked module per
// pipeline stage.
//
// Uses the new C++ interface instead of the old handle-based interface.
//
void CompileAndLinkShaderUnits(std::vector<ShaderCompUnit> compUnits)
{
// keep track of what to free
std::list<glslang::TShader*> shaders;
EShMessages messages = EShMsgDefault;
SetMessageOptions(messages);
//
// Per-shader processing...
//
glslang::TProgram& program = *new glslang::TProgram;
for (auto it = compUnits.cbegin(); it != compUnits.cend(); ++it) {
const auto &compUnit = *it;
glslang::TShader* shader = new glslang::TShader(compUnit.stage);
shader->setStringsWithLengthsAndNames(compUnit.text, NULL, compUnit.fileNameList, compUnit.count);