From: Mikko Rasa <tdb@tdb.fi>
Date: Thu, 1 Aug 2024 14:57:02 +0000 (+0300)
Subject: Mark storage buffers in compute shaders as outputs
X-Git-Url: https://git.tdb.fi/?a=commitdiff_plain;h=0cea5cf37821dd2f07afd9985437e4fa8d23a23b;p=libs%2Fgl.git

Mark storage buffers in compute shaders as outputs
---

diff --git a/source/glsl/optimize.cpp b/source/glsl/optimize.cpp
index 51377594..d544e343 100644
--- a/source/glsl/optimize.cpp
+++ b/source/glsl/optimize.cpp
@@ -1485,9 +1485,10 @@ void UnusedVariableRemover::visit(VariableDeclaration &var)
 	VariableInfo &var_info = variables[&var];
 
 	/* Mark variables as output if they're used by the next stage or the
-	graphics API. */
+	graphics API.  Also mark storage buffers as output in compute stage. */
 	bool builtin = (!var.name.compare(0, 3, "gl_") || (var.block_declaration && !var.block_declaration->block_name.compare(0, 3, "gl_")));
-	var_info.output = (var.interface=="out" && (stage->type==Stage::FRAGMENT || var.linked_declaration || builtin));
+	var_info.output = ((var.interface=="out" && (stage->type==Stage::FRAGMENT || var.linked_declaration || builtin)) ||
+		(var.interface=="buffer" && stage->type==Stage::COMPUTE));
 
 	// Linked outputs are automatically referenced.
 	if(var_info.output && var.linked_declaration)