From: Marek Olšák <maraeo@gmail.com>
Date: Thu, 3 Nov 2011 14:20:55 +0000 (+0100)
Subject: r300g: force buffer placements to GTT on big endian machines
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ca0f515f851f04a3849ac049868825e94382681d;p=mesa.git

r300g: force buffer placements to GTT on big endian machines
---

diff --git a/src/gallium/drivers/r300/r300_screen_buffer.c b/src/gallium/drivers/r300/r300_screen_buffer.c
index 5424f260e97..a5ec8ef9656 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,