From bce070eba418c8a79f6affcd885564babbf8c9d3 Mon Sep 17 00:00:00 2001
From: quou <quou@disroot.org>
Date: Sun, 5 Jan 2025 22:15:22 +1100
Subject: source level shader debugging

---
 sc/glslang |  2 +-
 sc/sc.cpp  | 16 +++++++++++++++-
 2 files changed, 16 insertions(+), 2 deletions(-)

(limited to 'sc')

diff --git a/sc/glslang b/sc/glslang
index 1062752..f754c85 160000
--- a/sc/glslang
+++ b/sc/glslang
@@ -1 +1 @@
-Subproject commit 1062752a891c95b2bfeed9e356562d88f9df84ac
+Subproject commit f754c852a87988eb097a39480c65f704ceb46274
diff --git a/sc/sc.cpp b/sc/sc.cpp
index 2bd1406..de39187 100644
--- a/sc/sc.cpp
+++ b/sc/sc.cpp
@@ -508,6 +508,7 @@ struct Desc {
 
 std::vector<uint32_t> compile_shader(
 	Desc& d,
+	const char* fname,
 	const char* presrc,
 	const char* src,
 	const char* define,
@@ -532,6 +533,9 @@ std::vector<uint32_t> compile_shader(
 #ifdef DEBUG
 	options.disableOptimizer = true;
 	options.generateDebugInfo = true;
+	options.emitNonSemanticShaderDebugInfo = true;
+	options.emitNonSemanticShaderDebugSource = true;
+	options.stripDebugInfo = false;
 #else
 	options.disableOptimizer = false;
 	options.stripDebugInfo = true;
@@ -541,6 +545,14 @@ std::vector<uint32_t> compile_shader(
 	shader.setEnvClient(glslang::EShClientVulkan, client_version);
 	shader.setEnvTarget(glslang::EShTargetSpv, target_version);
 	shader.setEntryPoint(d.entrypoints[stage].c_str());
+#ifdef DEBUG
+	shader.setDebugInfo(true);
+	shader.setSourceEntryPoint(d.entrypoints[stage].c_str());
+	shader.setSourceFile(fname);
+	shader.addSourceText(src, strlen(src));
+#else
+	(void)fname;
+#endif
 	if (!shader.preprocess(
 		GetDefaultResources(),
 		glsl_version,
@@ -599,6 +611,7 @@ void configure(
 }
 
 void compile_shaders(
+	const char* fname,
 	std::vector<uint32_t>* spv,
 	const char* src,
 	Desc& d
@@ -612,6 +625,7 @@ void compile_shaders(
 			configure(d, i, define, lang, ps);
 			spv[i] = compile_shader(
 				d,
+				fname,
 				ps.c_str(),
 				src,
 				define,
@@ -718,7 +732,7 @@ int main(int argc, const char** argv) {
 	desc_src = get_desc(src);
 	cdesc = parse_desc(dp_mem, desc_src.c_str());
 	desc.build(cdesc);
-	compile_shaders(spv, src, desc);
+	compile_shaders(argv[2], spv, src, desc);
 	write_csh(argv[2], desc, spv);
 	return 0;
 }
-- 
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