i965: Only map the necessary buffer range in brw_prepare_indices
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
diff --git a/src/mesa/drivers/dri/i965/brw_draw_upload.c b/src/mesa/drivers/dri/i965/brw_draw_upload.c
index ed1964f..7bc69c6 100644
--- a/src/mesa/drivers/dri/i965/brw_draw_upload.c
+++ b/src/mesa/drivers/dri/i965/brw_draw_upload.c
@@ -690,11 +690,10 @@
*/
if ((get_size(index_buffer->type) - 1) & offset) {
GLubyte *map = ctx->Driver.MapBufferRange(ctx,
- 0,
- bufferobj->Size,
+ offset,
+ ib_size,
GL_MAP_WRITE_BIT,
bufferobj);
- map += offset;
intel_upload_data(&brw->intel, map, ib_size, ib_type_size,
&bo, &offset);