X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=tools%2Fglslcompiler.cpp;h=458a56cee87caec21ef54dc42c5d0a5603a42583;hp=fdc2f1f18cb0593816528e5479acbdf1c71bb73e;hb=3a1b9cbe2441ae670a97541dc8ccb0a2860c8302;hpb=ccabaf9a1942a3b7a1d048b6dabaee41614e1123

diff --git a/tools/glslcompiler.cpp b/tools/glslcompiler.cpp
index fdc2f1f1..458a56ce 100644
--- a/tools/glslcompiler.cpp
+++ b/tools/glslcompiler.cpp
@@ -16,6 +16,7 @@ private:
 	bool combined;
 	Msp::GL::SL::Stage::Type stage;
 	bool dump_ast;
+	std::string out_filename;
 
 public:
 	GlslCompiler(int, char **);
@@ -36,7 +37,8 @@ GlslCompiler::GlslCompiler(int argc, char **argv):
 {
 	string stage_str;
 	vector<string> spec_values_in;
-	bool as_module = false;
+	unsigned as_module = 0;
+	string module_type = "glsl";
 	unsigned target_version = 0;
 
 	GetOpt getopt;
@@ -45,8 +47,9 @@ 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");
 	getopt(argc, argv);
 
@@ -54,7 +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)
 	{
@@ -63,7 +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;
@@ -72,6 +87,8 @@ GlslCompiler::GlslCompiler(int argc, char **argv):
 	else if(!dump_ast)
 		combined = true;
 
+	if(!spec_values_in.empty() && as_module)
+		throw usage_error("Modules can't be specialized");
 	for(vector<string>::const_iterator i=spec_values_in.begin(); i!=spec_values_in.end(); ++i)
 	{
 		unsigned colon = i->find(':');
@@ -122,10 +139,23 @@ int GlslCompiler::main()
 			IO::print("%s\n", compiler.get_stage_debug(*i));
 	}
 
-	if(combined)
-		IO::print("%s\n", compiler.get_combined_glsl());
+	IO::Base *out = &IO::cout;
+	RefPtr<IO::File> out_file;
+	if(!out_filename.empty())
+	{
+		out_file = new IO::File(out_filename, IO::M_WRITE);
+		out = out_file.get();
+	}
+
+	if(compile_mode==GL::SL::Compiler::SPIRV)
+	{
+		vector<uint32_t> code = compiler.get_combined_spirv();
+		out->write(reinterpret_cast<char *>(&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("%s\n", compiler.get_stage_glsl(stage));
+		IO::print(*out, "%s\n", compiler.get_stage_glsl(stage));
 
 	return 0;
 }