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Added GLSL version override interface and CLI

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This change list allows a user to override the GLSL version from the
command line or through the C and C++ interfaces. This will override the
override happens in ProcessDeferred() before DeduceVersionProfile() so
the process should still error out if the version is insufficient for
the shader code.

- Added --glsl-version <version> to CLI.
- Added parameter to route glslVersion as override version to
  preprocessor and parse functions to C++ interface.
- Updated C interface with function to override GLSL version.
This commit is contained in:
Hai Nguyen 2022-01-01 04:18:41 -05:00
parent 9b20b25138
commit 9a98d32366
5 changed files with 83 additions and 17 deletions
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54
StandAlone/StandAlone.cpp
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@ -191,6 +191,9 @@ glslang::EShTargetClientVersion ClientVersion; // not valid until Client i
glslang::EShTargetLanguage TargetLanguage = glslang::EShTargetNone;
glslang::EShTargetLanguageVersion TargetVersion; // not valid until TargetLanguage is set
// GLSL version
int GlslVersion = 0; // GLSL version specified on CLI, overrides #version in shader source
std::vector<std::string> Processes; // what should be recorded by OpModuleProcessed, or equivalent
// Per descriptor-set binding base data
@ -653,6 +656,48 @@ void ProcessArguments(std::vector<std::unique_ptr<glslang::TWorkItem>>& workItem
lowerword == "flatten-uniform-array" ||
lowerword == "fua") {
Options |= EOptionFlattenUniformArrays;
} else if (lowerword == "glsl-version") {
if (argc > 1) {
if (strcmp(argv[1], "100") == 0) {
GlslVersion = 100;
} else if (strcmp(argv[1], "110") == 0) {
GlslVersion = 110;
} else if (strcmp(argv[1], "120") == 0) {
GlslVersion = 120;
} else if (strcmp(argv[1], "130") == 0) {
GlslVersion = 130;
} else if (strcmp(argv[1], "140") == 0) {
GlslVersion = 140;
} else if (strcmp(argv[1], "150") == 0) {
GlslVersion = 150;
} else if (strcmp(argv[1], "300es") == 0) {
GlslVersion = 300;
} else if (strcmp(argv[1], "310es") == 0) {
GlslVersion = 310;
} else if (strcmp(argv[1], "320es") == 0) {
GlslVersion = 320;
} else if (strcmp(argv[1], "330") == 0) {
GlslVersion = 330;
} else if (strcmp(argv[1], "400") == 0) {
GlslVersion = 400;
} else if (strcmp(argv[1], "410") == 0) {
GlslVersion = 410;
} else if (strcmp(argv[1], "420") == 0) {
GlslVersion = 420;
} else if (strcmp(argv[1], "430") == 0) {
GlslVersion = 430;
} else if (strcmp(argv[1], "440") == 0) {
GlslVersion = 440;
} else if (strcmp(argv[1], "450") == 0) {
GlslVersion = 450;
} else if (strcmp(argv[1], "460") == 0) {
GlslVersion = 460;
} else
Error("--glsl-version expected one of: 100, 110, 120, 130, 140, 150,\n"
"300es, 310es, 320es, 330\n"
"400, 410, 420, 430, 440, 450, 460");
}
bumpArg();
} else if (lowerword == "hlsl-offsets") {
Options |= EOptionHlslOffsets;
} else if (lowerword == "hlsl-iomap" ||
@ -1317,7 +1362,7 @@ void CompileAndLinkShaderUnits(std::vector<ShaderCompUnit> compUnits)
#ifndef GLSLANG_WEB
if (Options & EOptionOutputPreprocessed) {
std::string str;
if (shader->preprocess(&Resources, defaultVersion, ENoProfile, false, false, messages, &str, includer)) {
if (shader->preprocess(&Resources, defaultVersion, ENoProfile, false, GlslVersion, false, messages, &str, includer)) {
PutsIfNonEmpty(str.c_str());
} else {
CompileFailed = true;
@ -1328,7 +1373,7 @@ void CompileAndLinkShaderUnits(std::vector<ShaderCompUnit> compUnits)
}
#endif
if (! shader->parse(&Resources, defaultVersion, false, messages, includer))
if (! shader->parse(&Resources, defaultVersion, GlslVersion, false, messages, includer))
CompileFailed = true;
program.addShader(shader);
@ -1850,6 +1895,11 @@ void usage()
" -dumpfullversion | -dumpversion print bare major.minor.patchlevel\n"
" --flatten-uniform-arrays | --fua flatten uniform texture/sampler arrays to\n"
" scalars\n"
" --glsl-version {100 | 110 | 120 | 130 | 140 | 150 |\n"
" 300es | 310es | 320es | 330\n"
" 400 | 410 | 420 | 430 | 440 | 450 | 460}\n"
" set GLSL version, overrides #version\n"
" in shader sourcen\n"
" --hlsl-offsets allow block offsets to follow HLSL rules\n"
" works independently of source language\n"
" --hlsl-iomap perform IO mapping in HLSL register space\n"