Mesa (mesa_7_7_branch): gallium: Set PIPE_BUFFER_USAGE_DISCARD flag in pipe_buffer_write.

[Jose Fonseca]

Module: Mesa
Branch: mesa_7_7_branch
Commit: 707b28136f7b7dea49bce23b0fcd0a757646ff7a
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=707b28136f7b7dea49bce23b0fcd0a757646ff7a

Author: José Fonseca <jfonseca at vmware.com>
Date:   Thu Jan 21 09:19:25 2010 -0800

gallium: Set PIPE_BUFFER_USAGE_DISCARD flag in pipe_buffer_write.

---

 src/gallium/include/pipe/p_inlines.h |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/src/gallium/include/pipe/p_inlines.h b/src/gallium/include/pipe/p_inlines.h
index 6949f56..11ed46c 100644
--- a/src/gallium/include/pipe/p_inlines.h
+++ b/src/gallium/include/pipe/p_inlines.h
@@ -119,7 +119,8 @@ pipe_buffer_write(struct pipe_screen *screen,
 
    map = pipe_buffer_map_range(screen, buf, offset, size, 
                                PIPE_BUFFER_USAGE_CPU_WRITE | 
-                               PIPE_BUFFER_USAGE_FLUSH_EXPLICIT);
+                               PIPE_BUFFER_USAGE_FLUSH_EXPLICIT |
+                               PIPE_BUFFER_USAGE_DISCARD);
    assert(map);
    if(map) {
       memcpy((uint8_t *)map + offset, data, size);