Mesa (master): i965: Disable PrimitiveID upload.
Kenneth Graunke
kwg at kemper.freedesktop.org
Wed Feb 29 23:05:43 UTC 2012
Module: Mesa
Branch: master
Commit: c59bdee12ebc14fb97e33b8ef9df666422dafba5
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=c59bdee12ebc14fb97e33b8ef9df666422dafba5
Author: Kenneth Graunke <kenneth at whitecape.org>
Date: Mon Feb 27 11:43:10 2012 -0800
i965: Disable PrimitiveID upload.
We currently don't support gl_PrimitiveID, and I believe asking the
hardware to generate it results in vertex cache invalidations.
This could result in slowdowns for applications that use gl_InstanceID,
which would be counter-productive. Just turn it off for now.
Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
Reviewed-by: Eric Anholt <eric at anholt.net>
---
src/mesa/drivers/dri/i965/brw_draw_upload.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_draw_upload.c b/src/mesa/drivers/dri/i965/brw_draw_upload.c
index 331f2a0..11b9caa 100644
--- a/src/mesa/drivers/dri/i965/brw_draw_upload.c
+++ b/src/mesa/drivers/dri/i965/brw_draw_upload.c
@@ -731,7 +731,7 @@ static void brw_emit_vertices(struct brw_context *brw)
dw1 = ((BRW_VE1_COMPONENT_STORE_VID << BRW_VE1_COMPONENT_0_SHIFT) |
(BRW_VE1_COMPONENT_STORE_IID << BRW_VE1_COMPONENT_1_SHIFT) |
- (BRW_VE1_COMPONENT_STORE_PID << BRW_VE1_COMPONENT_2_SHIFT) |
+ (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_2_SHIFT) |
(BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_3_SHIFT));
if (intel->gen >= 6) {
More information about the mesa-commit
mailing list