shader: ignore empty color mask in emit_color_select()

Fixes piglit interpolation-flat-other-flat-none.shader_test
10 years ago · b6971e08b8
parent dd954de6e0
commit b6971e08b8
1 changed files with 2 additions and 2 deletions
--- a/src/vrend_shader.c
+++ b/src/vrend_shader.c
@ -678,8 +678,8 @@ static int emit_color_select(struct dump_ctx *ctx)
 {
   char buf[255];
   char *sret = NULL;
-   
+
-   if (!ctx->key->color_two_side)
+   if (!ctx->key->color_two_side || !(ctx->color_in_mask & 0x3))
      return 0;
   if (ctx->color_in_mask & 1) {