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Merge branch 'glsl-ext' of https://github.com/nicebyte/glslang into nicebyte-glsl-ext

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This commit is contained in:
John Kessenich 2018-04-17 17:23:31 -06:00
commit 62f84fd5a3
1 changed files with 34 additions and 24 deletions
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54
StandAlone/StandAlone.cpp
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@ -1196,38 +1196,48 @@ int C_DECL main(int argc, char* argv[])
// .frag = fragment // .frag = fragment
// .comp = compute // .comp = compute
// //
EShLanguage FindLanguage(const std::string& name, bool parseSuffix) // Additionally, the file names may end in .<stage>.glsl and .<stage>.hlsl
// where <stage> is one of the stages listed above.
//
EShLanguage FindLanguage(const std::string& name, bool parseStageName)
{ {
size_t ext = 0; std::string stage_name;
std::string suffix; if (shaderStageName) {
stage_name = shaderStageName;
if (shaderStageName) } else if (parseStageName) {
suffix = shaderStageName; // Note: "first" extension means "first from the end", i.e.
else { // if the file is named foo.vert.glsl, then "glsl" is first,
// Search for a suffix on a filename: e.g, "myfile.frag". If given // "vert" is second.
// the suffix directly, we skip looking for the '.' size_t first_ext_start = name.find_last_of(".");
if (parseSuffix) { bool has_first_ext = first_ext_start != std::string::npos;
ext = name.rfind('.'); size_t second_ext_start =
if (ext == std::string::npos) { has_first_ext ? name.find_last_of(".", first_ext_start - 1) : std::string::npos;
bool has_second_ext = second_ext_start != std::string::npos;
std::string first_ext = name.substr(first_ext_start + 1, std::string::npos);
bool uses_unified_ext = has_first_ext && (first_ext == "glsl" ||
first_ext == "hlsl");
if (has_first_ext && !uses_unified_ext) {
stage_name = first_ext;
} else if (uses_unified_ext && has_second_ext) {
stage_name = name.substr(second_ext_start + 1, first_ext_start - second_ext_start - 1);
} else {
usage(); usage();
return EShLangVertex; return EShLangVertex;
} }
++ext; } else {
stage_name = name;
} }
suffix = name.substr(ext, std::string::npos); if (stage_name == "vert")
}
if (suffix == "vert")
return EShLangVertex; return EShLangVertex;
else if (suffix == "tesc") else if (stage_name == "tesc")
return EShLangTessControl; return EShLangTessControl;
else if (suffix == "tese") else if (stage_name == "tese")
return EShLangTessEvaluation; return EShLangTessEvaluation;
else if (suffix == "geom") else if (stage_name == "geom")
return EShLangGeometry; return EShLangGeometry;
else if (suffix == "frag") else if (stage_name == "frag")
return EShLangFragment; return EShLangFragment;
else if (suffix == "comp") else if (stage_name == "comp")
return EShLangCompute; return EShLangCompute;
usage(); usage();