From 3b339fbbf65a50ec2ec8baacd175ca7577c3b8bd Mon Sep 17 00:00:00 2001
From: ameerj <52414509+ameerj@users.noreply.github.com>
Date: Mon, 14 Jun 2021 23:33:26 -0400
Subject: glsl: Conditionally use fine/coarse derivatives based on device
 support

---
 src/shader_recompiler/backend/glsl/emit_context.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/shader_recompiler/backend/glsl/emit_context.cpp')

diff --git a/src/shader_recompiler/backend/glsl/emit_context.cpp b/src/shader_recompiler/backend/glsl/emit_context.cpp
index e18f8257e..0e8fe017d 100644
--- a/src/shader_recompiler/backend/glsl/emit_context.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_context.cpp
@@ -395,6 +395,9 @@ void EmitContext::SetupExtensions() {
     if (info.uses_typeless_image_reads || info.uses_typeless_image_writes) {
         header += "#extension GL_EXT_shader_image_load_formatted : enable\n";
     }
+    if (info.uses_derivatives && profile.support_gl_derivative_control) {
+        header += "#extension GL_ARB_derivative_control : enable\n";
+    }
 }
 
 void EmitContext::DefineConstantBuffers(Bindings& bindings) {
-- 
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