diff options
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_private.h')
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_private.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/draw/draw_private.h b/src/gallium/auxiliary/draw/draw_private.h index 84344c36773..44698db93d0 100644 --- a/src/gallium/auxiliary/draw/draw_private.h +++ b/src/gallium/auxiliary/draw/draw_private.h @@ -186,7 +186,8 @@ struct draw_context /** bytes per index (0, 1, 2 or 4) */ unsigned eltSizeIB; unsigned eltSize; - int eltBias; + unsigned eltMax; + int eltBias; unsigned min_index; unsigned max_index; @@ -460,4 +461,12 @@ draw_get_rasterizer_no_cull( struct draw_context *draw, boolean flatshade ); +/** + * Return index i from the index buffer. + * If the index buffer would overflow we return the + * index of the first element in the vb. + */ +#define DRAW_GET_IDX(elts, i) \ + ((i) >= draw->pt.user.eltMax) ? 0 : elts[i] + #endif /* DRAW_PRIVATE_H */ |