Mesa (master): r300g: Add A8_UNORM texture format.

[Corbin Simpson]

Module: Mesa
Branch: master
Commit: 15e283669aa8832347b4733f9556efdb5692640e
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=15e283669aa8832347b4733f9556efdb5692640e

Author: Corbin Simpson <MostAwesomeDude at gmail.com>
Date:   Tue Jan 26 20:11:39 2010 -0800

r300g: Add A8_UNORM texture format.

Keeps teeworld happy.

---

 src/gallium/drivers/r300/r300_screen.c  |    1 +
 src/gallium/drivers/r300/r300_texture.h |    1 +
 2 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c
index 67325c6..a4a0e52 100644
--- a/src/gallium/drivers/r300/r300_screen.c
+++ b/src/gallium/drivers/r300/r300_screen.c
@@ -219,6 +219,7 @@ static boolean r300_is_format_supported(struct pipe_screen* screen,
         case PIPE_FORMAT_DXT5_RGBA:
         case PIPE_FORMAT_YCBCR:
         case PIPE_FORMAT_L8_UNORM:
+        case PIPE_FORMAT_A8_UNORM:
         case PIPE_FORMAT_A8L8_UNORM:
             retval = usage & PIPE_TEXTURE_USAGE_SAMPLER;
             break;
diff --git a/src/gallium/drivers/r300/r300_texture.h b/src/gallium/drivers/r300/r300_texture.h
index 1be1e68..453fb1a 100644
--- a/src/gallium/drivers/r300/r300_texture.h
+++ b/src/gallium/drivers/r300/r300_texture.h
@@ -42,6 +42,7 @@ static INLINE uint32_t r300_translate_texformat(enum pipe_format format)
 {
     switch (format) {
         /* X8 */
+        case PIPE_FORMAT_A8_UNORM:
         case PIPE_FORMAT_I8_UNORM:
             return R300_EASY_TX_FORMAT(X, X, X, X, X8);
         case PIPE_FORMAT_L8_UNORM: