X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=tools%2Fglslcompiler.cpp;h=458a56cee87caec21ef54dc42c5d0a5603a42583;hp=74b37ef6b20a2fb5a46e0d19142c460fed346c98;hb=3a1b9cbe2441ae670a97541dc8ccb0a2860c8302;hpb=b30777959d8e2ab2caf489e32f40390f60a75fcb

diff --git a/tools/glslcompiler.cpp b/tools/glslcompiler.cpp
index 74b37ef6..458a56ce 100644
--- a/tools/glslcompiler.cpp
+++ b/tools/glslcompiler.cpp
@@ -1,16 +1,22 @@
 #include <msp/core/application.h>
 #include <msp/core/getopt.h>
 #include <msp/gl/glsl/compiler.h>
+#include <msp/gl/glsl/glsl_error.h>
 #include <msp/io/print.h>
+#include <msp/strings/utils.h>
 
 class GlslCompiler: public Msp::RegisteredApplication<GlslCompiler>
 {
 private:
 	std::string source_fn;
+	Msp::GL::SL::Features features;
+	Msp::GL::SL::Compiler::Mode compile_mode;
+	std::map<std::string, int> spec_values;
 	bool parse_only;
 	bool combined;
 	Msp::GL::SL::Stage::Type stage;
 	bool dump_ast;
+	std::string out_filename;
 
 public:
 	GlslCompiler(int, char **);
@@ -22,22 +28,57 @@ using namespace std;
 using namespace Msp;
 
 GlslCompiler::GlslCompiler(int argc, char **argv):
+	features(GL::SL::Features::latest()),
+	compile_mode(GL::SL::Compiler::PROGRAM),
 	parse_only(false),
 	combined(false),
 	stage(GL::SL::Stage::SHARED),
 	dump_ast(false)
 {
 	string stage_str;
+	vector<string> spec_values_in;
+	unsigned as_module = 0;
+	string module_type = "glsl";
+	unsigned target_version = 0;
 
 	GetOpt getopt;
 	getopt.add_option('c', "combined", combined, GetOpt::NO_ARG).set_help("Output combined GLSL");
 	getopt.add_option('a', "dump-ast", dump_ast, GetOpt::NO_ARG).set_help("Dump AST for debugging");
-	getopt.add_option('p', "parse_only", parse_only, GetOpt::NO_ARG).set_help("Only parse the loaded source, don't compile");
+	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", 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);
 
-	if(stage_str=="vertex")
+	if(target_version)
+		features = GL::SL::Features::from_version(GL::Version(target_version/100, target_version%100));
+
+	if(as_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)
+	{
+		if(!stage_str.empty())
+			throw usage_error("-s can't be used with -p");
+		dump_ast = true;
+	}
+
+	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;
@@ -45,15 +86,51 @@ GlslCompiler::GlslCompiler(int argc, char **argv):
 		stage = GL::SL::Stage::FRAGMENT;
 	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(':');
+		if(colon==string::npos || colon==0 || colon+1>=i->size())
+			throw usage_error("Invalid specialization value");
+
+		string value_str = i->substr(colon+1);
+		int value;
+		if(isnumrc(value_str))
+			value = lexical_cast<int>(value_str);
+		else
+			value = lexical_cast<bool>(value_str);
+		spec_values[i->substr(0, colon)] = value;
+	}
 }
 
 int GlslCompiler::main()
 {
-	GL::SL::Compiler compiler(GL::SL::Features::all());
+	GL::SL::Compiler compiler(features);
 	IO::File file(source_fn);
 	compiler.load_source(file, source_fn);
+	if(compile_mode==GL::SL::Compiler::PROGRAM)
+		compiler.specialize(spec_values);
 	if(!parse_only)
-		compiler.compile(GL::SL::Compiler::PROGRAM);
+	{
+		try
+		{
+			compiler.compile(compile_mode);
+			string diag = compiler.get_diagnostics();
+			if(!diag.empty())
+				IO::print("Diagnostic messages from compiler:\n%s\n", diag);
+		}
+		catch(const GL::SL::invalid_shader_source &exc)
+		{
+			if(!dump_ast)
+				throw;
+
+			IO::print("Compilation resulted in errors:\n%s\n", exc.what());
+			combined = false;
+			stage = GL::SL::Stage::SHARED;
+		}
+	}
 
 	if(dump_ast)
 	{
@@ -62,10 +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;
 }