Mesa (master): r300g: force buffer placements to GTT on big endian machines

Marek Olšák mareko at kemper.freedesktop.org
Thu Nov 3 15:41:58 UTC 2011


Module: Mesa
Branch: master
Commit: ca0f515f851f04a3849ac049868825e94382681d
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=ca0f515f851f04a3849ac049868825e94382681d

Author: Marek Olšák <maraeo at gmail.com>
Date:   Thu Nov  3 15:20:55 2011 +0100

r300g: force buffer placements to GTT on big endian machines

---

 src/gallium/drivers/r300/r300_screen_buffer.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/src/gallium/drivers/r300/r300_screen_buffer.c b/src/gallium/drivers/r300/r300_screen_buffer.c
index 5424f26..a5ec8ef 100644
--- a/src/gallium/drivers/r300/r300_screen_buffer.c
+++ b/src/gallium/drivers/r300/r300_screen_buffer.c
@@ -196,6 +196,12 @@ struct pipe_resource *r300_buffer_create(struct pipe_screen *screen,
         return &rbuf->b.b.b;
     }
 
+#ifdef PIPE_ARCH_BIG_ENDIAN
+    /* Force buffer placement to GTT on big endian machines, because
+     * the vertex fetcher can't swap bytes from VRAM. */
+    rbuf->b.b.b.usage = PIPE_USAGE_STAGING;
+#endif
+
     rbuf->buf =
         r300screen->rws->buffer_create(r300screen->rws,
                                        rbuf->b.b.b.width0, alignment,




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