diff options
| author | José Fonseca <[email protected]> | 2011-03-31 12:20:10 +0100 |
|---|---|---|
| committer | José Fonseca <[email protected]> | 2011-03-31 12:20:37 +0100 |
| commit | 3dedd39cdd198afa54ba5b53384d6be2040f9485 (patch) | |
| tree | 36189c1c96fb07003aff8064377ea1591bf68869 /src | |
| parent | c40b7910ee1338b9d391816df5391ce43f509ef0 (diff) | |
draw: Revert code reorg in previous change.
Because
fetch_count = max_index - min_index + 1
overflows for min_index = 0 and max_index = 0xffffffff.
Fixes fdo 35815.
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_pt_vsplit_tmp.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pt_vsplit_tmp.h b/src/gallium/auxiliary/draw/draw_pt_vsplit_tmp.h index 2acaef3f3d5..10842a36e8a 100644 --- a/src/gallium/auxiliary/draw/draw_pt_vsplit_tmp.h +++ b/src/gallium/auxiliary/draw/draw_pt_vsplit_tmp.h @@ -49,9 +49,6 @@ CONCAT(vsplit_primitive_, ELT_TYPE)(struct vsplit_frontend *vsplit, ib += istart; - fetch_start = min_index + elt_bias; - fetch_count = max_index - min_index + 1; - /* use the ib directly */ if (min_index == 0 && sizeof(ib[0]) == sizeof(draw_elts[0])) { if (icount > vsplit->max_vertices) @@ -70,7 +67,7 @@ CONCAT(vsplit_primitive_, ELT_TYPE)(struct vsplit_frontend *vsplit, } /* this is faster only when we fetch less elements than the normal path */ - if (fetch_count > icount) + if (max_index - min_index > icount - 1) return FALSE; if (elt_bias < 0 && min_index < -elt_bias) @@ -82,6 +79,9 @@ CONCAT(vsplit_primitive_, ELT_TYPE)(struct vsplit_frontend *vsplit, return FALSE; } + fetch_start = min_index + elt_bias; + fetch_count = max_index - min_index + 1; + if (!draw_elts) { if (min_index == 0) { for (i = 0; i < icount; i++) { |