From: Eric Anholt <eric@anholt.net>
Date: Tue, 7 Nov 2017 18:08:59 +0000 (-0800)
Subject: broadcom/vc5: Add support for GL_RASTERIZER_DISCARD
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=25d199f67dce2698aa8a9c3a4010d90a44d3a894;p=mesa.git

broadcom/vc5: Add support for GL_RASTERIZER_DISCARD

Fixes piglit discard-drawarrays.
---

diff --git a/src/gallium/drivers/vc5/vc5_emit.c b/src/gallium/drivers/vc5/vc5_emit.c
index a4a1af7ddf4..b84ddd66479 100644
--- a/src/gallium/drivers/vc5/vc5_emit.c
+++ b/src/gallium/drivers/vc5/vc5_emit.c
@@ -262,9 +262,11 @@ vc5_emit_state(struct pipe_context *pctx)
                           VC5_DIRTY_COMPILED_FS)) {
                 cl_emit(&job->bcl, CONFIGURATION_BITS, config) {
                         config.enable_forward_facing_primitive =
+                                !vc5->rasterizer->base.rasterizer_discard &&
                                 !(vc5->rasterizer->base.cull_face &
                                   PIPE_FACE_FRONT);
                         config.enable_reverse_facing_primitive =
+                                !vc5->rasterizer->base.rasterizer_discard &&
                                 !(vc5->rasterizer->base.cull_face &
                                   PIPE_FACE_BACK);
                         /* This seems backwards, but it's what gets the