gallium/r600: Don't let h/w do endian swap for colorformat

Since the rework on gallium pipe formats, there is no more need to do
endian swap of the colorformat in the h/w, because the conversion between
mesa format and gallium (pipe) format takes endianess into account (see
the big #if in p_format.h).

v2: return ENDIAN_NONE only for four 8-bits components
(V_0280A0_COLOR_8_8_8_8)

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Cc: "11.1 11.2" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c
index c3346f2..b231d1e 100644 (file)
--- a/src/gallium/drivers/r600/r600_state_common.c
+++ b/src/gallium/drivers/r600/r600_state_common.c
@@ -2721,6 +2721,13 @@ uint32_t r600_colorformat_endian_swap(uint32_t colorformat)
 
                /* 32-bit buffers. */
                case V_0280A0_COLOR_8_8_8_8:
+                       /*
+                        * No need to do endian swaps on four 8-bits components,
+                        * as mesa<-->pipe formats conversion take into account
+                        * the endianess
+                        */
+                       return ENDIAN_NONE;
+
                case V_0280A0_COLOR_2_10_10_10:
                case V_0280A0_COLOR_8_24:
                case V_0280A0_COLOR_24_8: