Mesa (master): i965: Add perf debug hint when the app makes us do index buffer scanning.
Eric Anholt
anholt at kemper.freedesktop.org
Wed Oct 23 22:34:13 UTC 2013
Module: Mesa
Branch: master
Commit: 867d0cc1fece5343e8c1655fc1b799aa8fcf5a0d
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=867d0cc1fece5343e8c1655fc1b799aa8fcf5a0d
Author: Eric Anholt <eric at anholt.net>
Date: Mon Oct 7 14:34:00 2013 -0700
i965: Add perf debug hint when the app makes us do index buffer scanning.
Reviewed-by: Jordan Justen <jordan.l.justen at intel.com>
---
src/mesa/drivers/dri/i965/brw_draw.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_draw.c b/src/mesa/drivers/dri/i965/brw_draw.c
index b6cfd53..0acd089 100644
--- a/src/mesa/drivers/dri/i965/brw_draw.c
+++ b/src/mesa/drivers/dri/i965/brw_draw.c
@@ -481,8 +481,11 @@ void brw_draw_prims( struct gl_context *ctx,
* get the minimum and maximum of their index buffer so we know what range
* to upload.
*/
- if (!vbo_all_varyings_in_vbos(arrays) && !index_bounds_valid)
+ if (!vbo_all_varyings_in_vbos(arrays) && !index_bounds_valid) {
+ perf_debug("Scanning index buffer to compute index buffer bounds. "
+ "Use glDrawRangeElements() to avoid this.\n");
vbo_get_minmax_indices(ctx, prims, ib, &min_index, &max_index, nr_prims);
+ }
/* Do GL_SELECT and GL_FEEDBACK rendering using swrast, even though it
* won't support all the extensions we support.
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