X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=tools%2Fglslcompiler.cpp;h=24df1f2bbc28f48721542843a321ee814340dd16;hp=b7b8097e88768a3d77ca12723fe83ef3e1fd069d;hb=HEAD;hpb=66af404fba419b0e8d167de46fc10a037c991a99

diff --git a/tools/glslcompiler.cpp b/tools/glslcompiler.cpp
index b7b8097e..f7bb2de9 100644
--- a/tools/glslcompiler.cpp
+++ b/tools/glslcompiler.cpp
@@ -1,5 +1,9 @@
 #include <msp/core/application.h>
 #include <msp/core/getopt.h>
+#include <msp/datafile/collection.h>
+#include <msp/datafile/directorysource.h>
+#include <msp/fs/dir.h>
+#include <msp/fs/stat.h>
 #include <msp/gl/glsl/compiler.h>
 #include <msp/gl/glsl/glsl_error.h>
 #include <msp/io/print.h>
@@ -8,12 +12,27 @@
 class GlslCompiler: public Msp::RegisteredApplication<GlslCompiler>
 {
 private:
+	class Resources: public Msp::DataFile::Collection
+	{
+	private:
+		Msp::DataFile::DirectorySource source;
+
+	public:
+		Resources();
+
+		void add_include_path(const Msp::FS::Path &);
+	};
+
 	std::string source_fn;
+	std::vector<std::string> include_paths;
+	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 **);
@@ -25,6 +44,8 @@ using namespace std;
 using namespace Msp;
 
 GlslCompiler::GlslCompiler(int argc, char **argv):
+	features(GL::SL::Features::latest(GL::OPENGL)),
+	compile_mode(GL::SL::Compiler::PROGRAM),
 	parse_only(false),
 	combined(false),
 	stage(GL::SL::Stage::SHARED),
@@ -32,17 +53,57 @@ GlslCompiler::GlslCompiler(int argc, char **argv):
 {
 	string stage_str;
 	vector<string> spec_values_in;
+	unsigned as_module = 0;
+	string module_type = "glsl";
+	bool vulkan = false;
+	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("vulkan", vulkan, GetOpt::NO_ARG).set_help("Compile for Vulkan target");
+	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_option('I', "include", include_paths, GetOpt::REQUIRED_ARG).set_help("Add a directory to look for imported files", "DIR");
 	getopt.add_argument("source", source_fn, GetOpt::REQUIRED_ARG).set_help("GLSL file to compile");
 	getopt(argc, argv);
 
-	if(stage_str=="vertex")
+	if(vulkan)
+	{
+		features = GL::SL::Features::latest(GL::VULKAN);
+		as_module = 1;
+		module_type = "spirv";
+	}
+	else if(target_version)
+		features = GL::SL::Features::from_api_version(GL::OPENGL, 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;
@@ -51,6 +112,8 @@ 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(':');
@@ -69,15 +132,26 @@ GlslCompiler::GlslCompiler(int argc, char **argv):
 
 int GlslCompiler::main()
 {
-	GL::SL::Compiler compiler(GL::SL::Features::all());
+	Resources resources;
+	for(const string &p: include_paths)
+		resources.add_include_path(p);
+	FS::Path shaderlib_path = FS::get_sys_data_dir()/"shaderlib";
+	if(FS::exists(shaderlib_path))
+		resources.add_include_path(shaderlib_path);
+
+	GL::SL::Compiler compiler(features);
 	IO::File file(source_fn);
-	compiler.load_source(file, source_fn);
-	compiler.specialize(spec_values);
+	compiler.load_source(file, &resources, source_fn);
+	if(compile_mode==GL::SL::Compiler::PROGRAM)
+		compiler.specialize(spec_values);
 	if(!parse_only)
 	{
 		try
 		{
-			compiler.compile(GL::SL::Compiler::PROGRAM);
+			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)
 		{
@@ -94,13 +168,37 @@ int GlslCompiler::main()
 	{
 		vector<GL::SL::Stage::Type> stages = compiler.get_stages();
 		for(vector<GL::SL::Stage::Type>::const_iterator i=stages.begin(); i!=stages.end(); ++i)
-			IO::print("%s\n", compiler.get_stage_debug(*i));
+			IO::print("%s\n", compiler.get_stage_debug(*i, true));
 	}
 
-	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;
 }
+
+
+GlslCompiler::Resources::Resources()
+{
+	add_source(source);
+}
+
+void GlslCompiler::Resources::add_include_path(const FS::Path &p)
+{
+	source.add_directory(p);
+}