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-rw-r--r--src/mesa/drivers/dri/i965/brw_draw_upload.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_draw_upload.c b/src/mesa/drivers/dri/i965/brw_draw_upload.c
index 8c6b5a6d2c..cde0aa6481 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;
}