Mesa (master): i965: Use native RGB_FLOAT16 support when available.

[Kenneth Graunke]

Module: Mesa
Branch: master
Commit: 9db9bc3aa19983f1bd0f1c0f3fe9c6317484892d
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=9db9bc3aa19983f1bd0f1c0f3fe9c6317484892d

Author: Eric Anholt <eric at anholt.net>
Date:   Tue Apr 16 17:21:22 2013 -0700

i965: Use native RGB_FLOAT16 support when available.

Previously we would expand it to RGBA_FLOAT16.  This format now comes out
as framebuffer incomplete, but it seems worth the memory savings if that's
what people are asking for (and GL3 does list it under "texture-only"
color formats)

Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/mesa/drivers/dri/i965/brw_wm_surface_state.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index 14216e5..0c977a7 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -434,7 +434,7 @@ brw_format_for_mesa_format(gl_format mesa_format)
       [MESA_FORMAT_RGBA_FLOAT32] = BRW_SURFACEFORMAT_R32G32B32A32_FLOAT,
       [MESA_FORMAT_RGBA_FLOAT16] = BRW_SURFACEFORMAT_R16G16B16A16_FLOAT,
       [MESA_FORMAT_RGB_FLOAT32] = BRW_SURFACEFORMAT_R32G32B32_FLOAT,
-      [MESA_FORMAT_RGB_FLOAT16] = 0,
+      [MESA_FORMAT_RGB_FLOAT16] = BRW_SURFACEFORMAT_R16G16B16_FLOAT,
       [MESA_FORMAT_ALPHA_FLOAT32] = BRW_SURFACEFORMAT_A32_FLOAT,
       [MESA_FORMAT_ALPHA_FLOAT16] = BRW_SURFACEFORMAT_A16_FLOAT,
       [MESA_FORMAT_LUMINANCE_FLOAT32] = BRW_SURFACEFORMAT_L32_FLOAT,