From cf89b29d2f87be8ca437049e5cf3df9f54a806b2 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Kristian=20H=C3=B8gsberg?= Date: Mon, 7 Jul 2014 16:27:31 -0700 Subject: [PATCH] i965: Provide a context flag to let us enable fast clear MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit GEN7+ has the fast clear functionality, which lets us clear the color buffers using the MCS and a scaled down rectangle. To enable this we have to set the appropriate bits in the 3DSTATE_PS package. Signed-off-by: Kristian Høgsberg Acked-by: Kenneth Graunke --- src/mesa/drivers/dri/i965/brw_context.h | 1 + src/mesa/drivers/dri/i965/gen7_wm_state.c | 2 ++ src/mesa/drivers/dri/i965/gen8_ps_state.c | 2 ++ 3 files changed, 5 insertions(+) diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h index 01be5fb427f..19331827ce5 100644 --- a/src/mesa/drivers/dri/i965/brw_context.h +++ b/src/mesa/drivers/dri/i965/brw_context.h @@ -1252,6 +1252,7 @@ struct brw_context * Gen6. See brw_update_null_renderbuffer_surface(). */ drm_intel_bo *multisampled_null_render_target_bo; + uint32_t fast_clear_op; } wm; diff --git a/src/mesa/drivers/dri/i965/gen7_wm_state.c b/src/mesa/drivers/dri/i965/gen7_wm_state.c index c3e93164c18..278cf17964c 100644 --- a/src/mesa/drivers/dri/i965/gen7_wm_state.c +++ b/src/mesa/drivers/dri/i965/gen7_wm_state.c @@ -246,6 +246,8 @@ upload_ps_state(struct brw_context *brw) ksp0 = brw->wm.base.prog_offset; } + dw4 |= brw->wm.fast_clear_op; + BEGIN_BATCH(8); OUT_BATCH(_3DSTATE_PS << 16 | (8 - 2)); OUT_BATCH(ksp0); diff --git a/src/mesa/drivers/dri/i965/gen8_ps_state.c b/src/mesa/drivers/dri/i965/gen8_ps_state.c index 49d4fe0e4f8..5e313bfd226 100644 --- a/src/mesa/drivers/dri/i965/gen8_ps_state.c +++ b/src/mesa/drivers/dri/i965/gen8_ps_state.c @@ -185,6 +185,8 @@ upload_ps_state(struct brw_context *brw) else dw6 |= GEN7_PS_POSOFFSET_NONE; + dw6 |= brw->wm.fast_clear_op; + /* _NEW_MULTISAMPLE * In case of non 1x per sample shading, only one of SIMD8 and SIMD16 * should be enabled. We do 'SIMD16 only' dispatch if a SIMD16 shader -- 2.30.2