glsl: Conditionally add GL_ARB_sparse_texture2

src/shader_recompiler/backend/glsl/emit_context.cpp

@@ -294,8 +294,6 @@ EmitContext::EmitContext(IR::Program& program, Bindings& bindings, const Profile
 }
 
 void EmitContext::SetupExtensions(std::string&) {
-    // TODO: track this usage
-    header += "#extension GL_ARB_sparse_texture2 : enable\n";
     if (profile.support_gl_texture_shadow_lod) {
         header += "#extension GL_EXT_texture_shadow_lod : enable\n";
     }
@@ -331,6 +329,9 @@ void EmitContext::SetupExtensions(std::string&) {
         stage != Stage::Geometry) {
         header += "#extension GL_ARB_shader_viewport_layer_array : enable\n";
     }
+    if (info.uses_sparse_residency) {
+        header += "#extension GL_ARB_sparse_texture2 : enable\n";
+    }
     if (UsesTyplessImage(info)) {
         header += "#extension GL_EXT_shader_image_load_formatted : enable\n";
     }