From: Keith Whitwell <keith@tungstengraphics.com>
Date: Fri, 13 Oct 2006 11:21:55 +0000 (+0000)
Subject: Upload of interleaved arrays currently assumes that position is the
X-Git-Tag: 062012170305~20361
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a2c50b0f4ad16855cf8a2ff2ab4029342f4297dd;p=profile%2Fivi%2Fmesa.git

Upload of interleaved arrays currently assumes that position is the
first element in the interleaved group.  Add a test to catch cases
where this isn't true and use per-array uploads instead.  Fixes compiz
glitches on x64.
---

diff --git a/src/mesa/drivers/dri/i965/brw_draw_upload.c b/src/mesa/drivers/dri/i965/brw_draw_upload.c
index 8c6b5a6..cde0aa6 100644
--- a/src/mesa/drivers/dri/i965/brw_draw_upload.c
+++ b/src/mesa/drivers/dri/i965/brw_draw_upload.c
@@ -435,6 +435,7 @@ GLboolean brw_upload_vertices( struct brw_context *brw,
 	    ptr = input->glarray->Ptr;
 	 }
 	 else if (interleave != input->glarray->StrideB ||
+		  (const char *)input->glarray->Ptr - (const char *)ptr < 0 ||
 		  (const char *)input->glarray->Ptr - (const char *)ptr > interleave) {
 	    interleave = 0;
 	 }