Mesa (master): i965: Add BRW_SURFACEFORMAT_R32G32_FLOAT_LD, required for IVB gather4 w/a
Chris Forbes
chrisf at kemper.freedesktop.org
Wed Oct 2 18:58:07 UTC 2013
Module: Mesa
Branch: master
Commit: 855b2a8f4a2ef9151f7710e651bbcdadb4c6ea99
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=855b2a8f4a2ef9151f7710e651bbcdadb4c6ea99
Author: Chris Forbes <chrisf at ijw.co.nz>
Date: Sun Aug 11 11:46:18 2013 +1200
i965: Add BRW_SURFACEFORMAT_R32G32_FLOAT_LD, required for IVB gather4 w/a
gather4 GREEN channel against a surface with format R32G32_FLOAT doesn't work
correctly on IVB. w/a from bspec:
- use R32G32_FLOAT_LD = 0x97 instead, for gather4 only.
- select BLUE channel to read GREEN
Signed-off-by: Chris Forbes <chrisf at ijw.co.nz>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
---
src/mesa/drivers/dri/i965/brw_defines.h | 1 +
src/mesa/drivers/dri/i965/brw_surface_formats.c | 1 +
2 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_defines.h b/src/mesa/drivers/dri/i965/brw_defines.h
index ae2839a..7dfb2b9 100644
--- a/src/mesa/drivers/dri/i965/brw_defines.h
+++ b/src/mesa/drivers/dri/i965/brw_defines.h
@@ -309,6 +309,7 @@
#define BRW_SURFACEFORMAT_R16G16B16A16_USCALED 0x094
#define BRW_SURFACEFORMAT_R32G32_SSCALED 0x095
#define BRW_SURFACEFORMAT_R32G32_USCALED 0x096
+#define BRW_SURFACEFORMAT_R32G32_FLOAT_LD 0x097
#define BRW_SURFACEFORMAT_R32G32_SFIXED 0x0A0
#define BRW_SURFACEFORMAT_R64_PASSTHRU 0x0A1
#define BRW_SURFACEFORMAT_B8G8R8A8_UNORM 0x0C0
diff --git a/src/mesa/drivers/dri/i965/brw_surface_formats.c b/src/mesa/drivers/dri/i965/brw_surface_formats.c
index 0d8d805..8666336 100644
--- a/src/mesa/drivers/dri/i965/brw_surface_formats.c
+++ b/src/mesa/drivers/dri/i965/brw_surface_formats.c
@@ -110,6 +110,7 @@ const struct surface_format_info surface_formats[] = {
SF( Y, x, x, x, Y, x, Y, x, x, BRW_SURFACEFORMAT_R16G16B16A16_UINT)
SF( Y, Y, x, x, Y, Y, Y, x, x, BRW_SURFACEFORMAT_R16G16B16A16_FLOAT)
SF( Y, 50, x, x, Y, Y, Y, Y, x, BRW_SURFACEFORMAT_R32G32_FLOAT)
+ SF( Y, 70, x, x, Y, Y, Y, Y, x, BRW_SURFACEFORMAT_R32G32_FLOAT_LD)
SF( Y, x, x, x, Y, x, Y, Y, x, BRW_SURFACEFORMAT_R32G32_SINT)
SF( Y, x, x, x, Y, x, Y, Y, x, BRW_SURFACEFORMAT_R32G32_UINT)
SF( Y, 50, Y, x, x, x, x, x, x, BRW_SURFACEFORMAT_R32_FLOAT_X8X24_TYPELESS)
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