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authorBrian Paul <[email protected]>2009-08-18 17:55:27 -0600
committerBrian Paul <[email protected]>2009-08-18 17:55:27 -0600
commit73fc09a7bf5c63b595251dc10997891c72ecb119 (patch)
tree3c4a75704a91eb79e2afb2521debff4bd49c3a9d /src/gallium/include/pipe
parente4aa62a6ce7067269c0befb984bcb8136420cb2c (diff)
parent3097d7dbf8b6acd2e5f4fd2adf45c5fb85f73952 (diff)
Merge branch 'mesa_7_5_branch'
Diffstat (limited to 'src/gallium/include/pipe')
-rw-r--r--src/gallium/include/pipe/p_inlines.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/gallium/include/pipe/p_inlines.h b/src/gallium/include/pipe/p_inlines.h
index cf176c92099..a5c1e8270a3 100644
--- a/src/gallium/include/pipe/p_inlines.h
+++ b/src/gallium/include/pipe/p_inlines.h
@@ -63,6 +63,13 @@ pipe_buffer_map(struct pipe_screen *screen,
if(screen->buffer_map_range) {
unsigned offset = 0;
unsigned length = buf->size;
+
+ /* XXX: Actually we should be using/detecting DISCARD
+ * instead of assuming that WRITE implies discard */
+ if((usage & PIPE_BUFFER_USAGE_CPU_WRITE) &&
+ !(usage & PIPE_BUFFER_USAGE_DISCARD))
+ usage |= PIPE_BUFFER_USAGE_CPU_READ;
+
return screen->buffer_map_range(screen, buf, offset, length, usage);
}
else