diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_draw_upload.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_draw_upload.c b/src/mesa/drivers/dri/i965/brw_draw_upload.c index b138cb7ef62..57815645924 100644 --- a/src/mesa/drivers/dri/i965/brw_draw_upload.c +++ b/src/mesa/drivers/dri/i965/brw_draw_upload.c @@ -423,13 +423,22 @@ copy_array_to_vbo_array(struct brw_context *brw, uint8_t *dst = intel_upload_space(brw, size, dst_stride, &buffer->bo, &buffer->offset); - if (dst_stride == src_stride) { - memcpy(dst, src, size); - } else { - while (count--) { - memcpy(dst, src, dst_stride); - src += src_stride; - dst += dst_stride; + /* The GL 4.5 spec says: + * "If any enabled array’s buffer binding is zero when DrawArrays or + * one of the other drawing commands defined in section 10.4 is called, + * the result is undefined." + * + * In this case, let's the dst with undefined values + */ + if (src != NULL) { + if (dst_stride == src_stride) { + memcpy(dst, src, size); + } else { + while (count--) { + memcpy(dst, src, dst_stride); + src += src_stride; + dst += dst_stride; + } } } buffer->stride = dst_stride; |