From c59bdee12ebc14fb97e33b8ef9df666422dafba5 Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Mon, 27 Feb 2012 11:43:10 -0800 Subject: [PATCH] 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 Reviewed-by: Eric Anholt --- src/mesa/drivers/dri/i965/brw_draw_upload.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/mesa/drivers/dri/i965/brw_draw_upload.c b/src/mesa/drivers/dri/i965/brw_draw_upload.c index 331f2a0915e..11b9caaec82 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) { -- 2.30.2