Module: Mesa
Branch: master
Commit: 08315233509f1fa7dc1e877aed2a8517296cf86e
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=08315233509f1fa7dc1e877aed2a8517296cf86e
Author: Paul Berry <stereotype...@gmail.com>
Date: Tue Nov 19 18:51:48 2013 -0800
i965: Fix fast clear of depth buffers.
>From section 4.4.7 (Layered Framebuffers) of the GLSL 3.2 spec:
When the Clear or ClearBuffer* commands are used to clear a
layered framebuffer attachment, all layers of the attachment are
cleared.
This patch fixes the fast depth clear path.
Fixes piglit test "spec/!OpenGL 3.2/layered-rendering/clear-depth".
Cc: "10.0" <mesa-sta...@lists.freedesktop.org>
Reviewed-by: Eric Anholt <e...@anholt.net>
Reviewed-by: Jordan Justen <jordan.l.jus...@intel.com>
---
src/mesa/drivers/dri/i965/brw_clear.c | 12 ++++++++++--
1 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_clear.c
b/src/mesa/drivers/dri/i965/brw_clear.c
index d94e259..1cac996 100644
--- a/src/mesa/drivers/dri/i965/brw_clear.c
+++ b/src/mesa/drivers/dri/i965/brw_clear.c
@@ -181,8 +181,16 @@ brw_fast_clear_depth(struct gl_context *ctx)
*/
intel_batchbuffer_emit_mi_flush(brw);
- intel_hiz_exec(brw, mt, depth_irb->mt_level, depth_irb->mt_layer,
- GEN6_HIZ_OP_DEPTH_CLEAR);
+ if (fb->NumLayers > 0) {
+ assert(fb->NumLayers == depth_irb->mt->level[depth_irb->mt_level].depth);
+ for (unsigned layer = 0; layer < fb->NumLayers; layer++) {
+ intel_hiz_exec(brw, mt, depth_irb->mt_level, layer,
+ GEN6_HIZ_OP_DEPTH_CLEAR);
+ }
+ } else {
+ intel_hiz_exec(brw, mt, depth_irb->mt_level, depth_irb->mt_layer,
+ GEN6_HIZ_OP_DEPTH_CLEAR);
+ }
if (brw->gen == 6) {
/* From the Sandy Bridge PRM, volume 2 part 1, page 314:
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