broadcom/vc5: Disable early Z test when the FS writes Z.

Fixes piglit early-z.
2017-11-02 18:45:07 -07:00
parent eeb9e80272
commit 6079f7c3c3
1 changed files with 2 additions and 1 deletions
@@ -287,7 +287,8 @@ vc5_emit_state(struct pipe_context *pctx)
                                config.z_updates_enable =
                                        vc5->zsa->base.depth.writemask;
                                config.early_z_enable =
-                                        vc5->zsa->early_z_enable;
+                                        (vc5->zsa->early_z_enable &&
+                                         !vc5->prog.fs->prog_data.fs->writes_z);
                                config.depth_test_function =
                                        vc5->zsa->base.depth.func;
                        } else {