diff options
Diffstat (limited to 'src/mesa/vbo')
| -rw-r--r-- | src/mesa/vbo/vbo_exec_array.c | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/src/mesa/vbo/vbo_exec_array.c b/src/mesa/vbo/vbo_exec_array.c index 12911f5750c..3f0656a816c 100644 --- a/src/mesa/vbo/vbo_exec_array.c +++ b/src/mesa/vbo/vbo_exec_array.c @@ -677,9 +677,10 @@ vbo_exec_DrawRangeElements(GLenum mode, /* 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, " "type 0x%x, indices=%p)\n" - "\tindex=%u is out of bounds (max=%u) " - "Element Buffer %u (size %d)", - start, end, count, type, indices, end, + "\tend is out of bounds (max=%u) " + "Element Buffer %u (size %d)\n" + "\tThis should probably be fixed in the application.", + start, end, count, type, indices, ctx->Array.ArrayObj->_MaxElement - 1, ctx->Array.ElementArrayBufferObj->Name, ctx->Array.ElementArrayBufferObj->Size); @@ -689,7 +690,33 @@ vbo_exec_DrawRangeElements(GLenum mode, if (0) _mesa_print_arrays(ctx); - return; + +#ifdef DEBUG + /* 'end' was out of bounds, but now let's check the actual array + * indexes to see if any of them are out of bounds. If so, warn + * and skip the draw to avoid potential segfault, etc. + */ + { + GLuint max = _mesa_max_buffer_index(ctx, count, type, indices, + ctx->Array.ElementArrayBufferObj); + if (max >= ctx->Array.ArrayObj->_MaxElement) { + _mesa_warning(ctx, "glDraw[Range]Elements(start %u, end %u, " + "count %d, type 0x%x, indices=%p)\n" + "\tindex=%u is out of bounds (max=%u) " + "Element Buffer %u (size %d)\n" + "\tSkipping the glDrawRangeElements() call", + start, end, count, type, indices, max, + ctx->Array.ArrayObj->_MaxElement - 1, + ctx->Array.ElementArrayBufferObj->Name, + ctx->Array.ElementArrayBufferObj->Size); + return; + } + /* XXX we could also find the min index and compare to 'start' + * to see if start is correct. But it's more likely to get the + * upper bound wrong. + */ + } +#endif } else if (0) { _mesa_printf("glDraw[Range]Elements" |