From: Mikko Rasa Date: Fri, 9 Apr 2021 15:22:00 +0000 (+0300) Subject: Add an option to compile SPIR-V in the command-line GLSL compiler X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=cbe2ec1f080b117faf9bf0ad2d92d5d4f2379584;p=libs%2Fgl.git Add an option to compile SPIR-V in the command-line GLSL compiler --- diff --git a/tools/glslcompiler.cpp b/tools/glslcompiler.cpp index a1eb1a1f..4fe6bc8b 100644 --- a/tools/glslcompiler.cpp +++ b/tools/glslcompiler.cpp @@ -37,7 +37,8 @@ GlslCompiler::GlslCompiler(int argc, char **argv): { string stage_str; vector spec_values_in; - bool as_module = false; + unsigned as_module = 0; + string module_type = "glsl"; unsigned target_version = 0; GetOpt getopt; @@ -46,7 +47,7 @@ GlslCompiler::GlslCompiler(int argc, char **argv): getopt.add_option('p', "parse_only", parse_only, GetOpt::NO_ARG).set_help("Only parse the loaded source (implies -a)"); getopt.add_option('e', "specialize", spec_values_in, GetOpt::REQUIRED_ARG).set_help("Set specialization constant", "NAME:VALUE"); getopt.add_option('s', "stage", stage_str, GetOpt::REQUIRED_ARG).set_help("Output GLSL for STAGE", "STAGE"); - getopt.add_option('m', "module", as_module, GetOpt::NO_ARG).set_help("Compile as unspecialized module"); + getopt.add_option('m', "module", module_type, GetOpt::OPTIONAL_ARG).bind_seen_count(as_module).set_help("Compile as unspecialized module"); getopt.add_option('t', "target-version", target_version, GetOpt::REQUIRED_ARG).set_help("Specify target GLSL version", "VER"); getopt.add_option('o', "out-file", out_filename, GetOpt::REQUIRED_ARG).set_help("Write output to file instead of stdout", "FILE"); getopt.add_argument("source", source_fn, GetOpt::REQUIRED_ARG).set_help("GLSL file to compile"); @@ -56,7 +57,17 @@ GlslCompiler::GlslCompiler(int argc, char **argv): features = GL::SL::Features::from_version(GL::Version(target_version/100, target_version%100)); if(as_module) - compile_mode = GL::SL::Compiler::MODULE; + { + if(module_type=="glsl" || module_type=="GLSL") + compile_mode = GL::SL::Compiler::MODULE; + else if(module_type=="spirv" || module_type=="spir-v" || module_type=="SPIRV" || module_type=="SPIR-V") + compile_mode = GL::SL::Compiler::SPIRV; + else + throw usage_error("Invalid module type"); + } + + if(compile_mode==GL::SL::Compiler::SPIRV && out_filename.empty()) + throw usage_error("-o is required for SPIR-V"); if(parse_only) { @@ -65,7 +76,9 @@ GlslCompiler::GlslCompiler(int argc, char **argv): dump_ast = true; } - if(stage_str=="vertex") + if(!stage_str.empty() && compile_mode==GL::SL::Compiler::SPIRV) + throw usage_error("-s can't be used with SPIR-V"); + else if(stage_str=="vertex") stage = GL::SL::Stage::VERTEX; else if(stage_str=="geometry") stage = GL::SL::Stage::GEOMETRY; @@ -134,7 +147,12 @@ int GlslCompiler::main() out = out_file.get(); } - if(combined) + if(compile_mode==GL::SL::Compiler::SPIRV) + { + vector code = compiler.get_combined_spirv(); + out->write(reinterpret_cast(&code.front()), code.size()*4); + } + else if(combined) IO::print(*out, "%s\n", compiler.get_combined_glsl()); else if(stage!=GL::SL::Stage::SHARED) IO::print(*out, "%s\n", compiler.get_stage_glsl(stage));