From d5249b7d89a12490335750eda01309e36c7d80cb Mon Sep 17 00:00:00 2001
From: José Fonseca <jfonseca@vmware.com>
Date: Thu, 10 Feb 2011 20:54:18 +0000
Subject: util: Use PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE in pipe_buffer_write.

---
 src/gallium/auxiliary/util/u_inlines.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'src/gallium/auxiliary')

diff --git a/src/gallium/auxiliary/util/u_inlines.h b/src/gallium/auxiliary/util/u_inlines.h
index 98889fb70a..aed8ba7df4 100644
--- a/src/gallium/auxiliary/util/u_inlines.h
+++ b/src/gallium/auxiliary/util/u_inlines.h
@@ -299,13 +299,18 @@ pipe_buffer_write(struct pipe_context *pipe,
                   const void *data)
 {
    struct pipe_box box;
+   unsigned usage = PIPE_TRANSFER_WRITE;
+
+   if (offset == 0 && size == buf->width0) {
+      usage |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
+   }
 
    u_box_1d(offset, size, &box);
 
    pipe->transfer_inline_write( pipe,
                                 buf,
                                 0,
-                                PIPE_TRANSFER_WRITE,
+                                usage,
                                 &box,
                                 data,
                                 size,
-- 
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