[Mesa-dev] [PATCH] draw/pt: adjust overflow calculations

[Zack Rusin]

gallium lies. buffer_size is not actually buffer_size but available
size, which is 'buffer_size - buffer_offset' so by adding buffer
offset we'd incorrectly compute overflow.

Signed-off-by: Zack Rusin <zackr at vmware.com>
---
 src/gallium/auxiliary/draw/draw_pt_so_emit.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/gallium/auxiliary/draw/draw_pt_so_emit.c b/src/gallium/auxiliary/draw/draw_pt_so_emit.c
index 9b55773..d624a99 100644
--- a/src/gallium/auxiliary/draw/draw_pt_so_emit.c
+++ b/src/gallium/auxiliary/draw/draw_pt_so_emit.c
@@ -131,8 +131,7 @@ static void so_emit_prim(struct pt_so_emit *so,
    for (i = 0; i < draw->so.num_targets; i++) {
       struct draw_so_target *target = draw->so.targets[i];
       if (target) {
-         buffer_total_bytes[i] = target->internal_offset +
-            target->target.buffer_offset;
+         buffer_total_bytes[i] = target->internal_offset;
       } else {
          buffer_total_bytes[i] = 0;
       }
-- 
1.7.10.4