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vbo: added comment about max array index

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This commit is contained in:
Brian Paul 2009-09-21 16:54:35 -06:00
parent 9a3333f436
commit 94a020cfe6
1 changed files with 6 additions and 0 deletions
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6
src/mesa/vbo/vbo_exec_array.c
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@ -678,6 +678,12 @@ vbo_exec_DrawRangeElementsBaseVertex(GLenum mode,
type, indices, basevertex ))
return;
/* NOTE: It's important that 'end' is a reasonable value.
* in _tnl_draw_prims(), we use end to determine how many vertices
* to transform. If it's too large, we can unnecessarily split prims
* or we can read/write out of memory in several different places!
*/
if (end >= ctx->Array.ArrayObj->_MaxElement) {
/* the max element is out of bounds of one or more enabled arrays */
_mesa_warning(ctx, "glDraw[Range]Elements(start %u, end %u, count %d, "