diff options
| author | Brian Paul <[email protected]> | 2008-07-04 09:59:43 -0600 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2008-07-04 10:02:43 -0600 |
| commit | ba9e6339028c36269cb50bb8535e415fa8e6e4c9 (patch) | |
| tree | c7b991048b99d30566278c3908785d5f5f839da8 /src/gallium/auxiliary/draw/draw_pt.c | |
| parent | 294b061256220960e7e29fbc8ecbd2ffce75de40 (diff) | |
gallium: fix trim() function bug when count < first
If the user called glDrawArrays(GL_TRIANGLES, count=1), trim() returned a
very large integer because of the unsigned arithmetic.
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_pt.c')
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_pt.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pt.c b/src/gallium/auxiliary/draw/draw_pt.c index 9140faeea9d..85a75525c8b 100644 --- a/src/gallium/auxiliary/draw/draw_pt.c +++ b/src/gallium/auxiliary/draw/draw_pt.c @@ -37,6 +37,8 @@ static unsigned trim( unsigned count, unsigned first, unsigned incr ) { + if (count < first) + return 0; return count - (count - first) % incr; } |