Mesa (master): r600g: explicity set sign bits for RGTC

[Dave Airlie]

Module: Mesa
Branch: master
Commit: b2413de91682e3908d8ab1635956a290f603681c
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=b2413de91682e3908d8ab1635956a290f603681c

Author: Dave Airlie <airlied at redhat.com>
Date:   Fri Feb 25 09:13:14 2011 +1000

r600g: explicity set sign bits for RGTC

---

 src/gallium/drivers/r600/r600_texture.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/gallium/drivers/r600/r600_texture.c b/src/gallium/drivers/r600/r600_texture.c
index 87143ee..3a85a25 100644
--- a/src/gallium/drivers/r600/r600_texture.c
+++ b/src/gallium/drivers/r600/r600_texture.c
@@ -878,12 +878,14 @@ uint32_t r600_translate_texformat(enum pipe_format format,
 			goto out_unknown;
 
 		switch (format) {
-		case PIPE_FORMAT_RGTC1_UNORM:
 		case PIPE_FORMAT_RGTC1_SNORM:
+			word4 |= sign_bit[0];
+		case PIPE_FORMAT_RGTC1_UNORM:
 			result = FMT_BC4;
 			goto out_word4;
-		case PIPE_FORMAT_RGTC2_UNORM:
 		case PIPE_FORMAT_RGTC2_SNORM:
+			word4 |= sign_bit[0] | sign_bit[1];
+		case PIPE_FORMAT_RGTC2_UNORM:
 			result = FMT_BC5;
 			goto out_word4;
 		default: