Signed-off-by: Topi Pohjolainen <topi.pohjolai...@intel.com>
---
src/compiler/glsl/lower_mediump.cpp | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/src/compiler/glsl/lower_mediump.cpp
b/src/compiler/glsl/lower_mediump.cpp
index 45cf75b53c..bae18c9bfb 100644
--- a/src/compiler/glsl/lower_mediump.cpp
+++ b/src/compiler/glsl/lower_mediump.cpp
@@ -173,6 +173,17 @@ lower_mediump_visitor::can_be_lowered(const ir_variable
*var) const
if (var->data.mode == ir_var_shader_in)
return false;
+ /* Builtin outputs such as gl_FragColor don't have precision qualifier.
+ * Lower them by default.
+ *
+ * TODO: If this gets assigned with full precision value, output would
+ * need to be in full precision instead of the value being converted
+ * to 16-bits?
+ */
+ if (var->data.mode == ir_var_shader_out &&
+ var->data.how_declared == ir_var_declared_implicitly)
+ return true;
+
return var->data.precision == ast_precision_low ||
var->data.precision == ast_precision_medium;
}
--
2.11.0
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