Mesa (master): st/mesa: Make use of the new PIPE_TRANSFER_DISCARD_* for buffer object.
Marek Olšák
mareko at kemper.freedesktop.org
Tue Mar 15 14:42:18 UTC 2011
Module: Mesa
Branch: master
Commit: baab835a1f11d026bd757d99ff05b59971042a3e
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=baab835a1f11d026bd757d99ff05b59971042a3e
Author: Mathias Fröhlich <Mathias.Froehlich at web.de>
Date: Sat Feb 26 08:20:34 2011 +0100
st/mesa: Make use of the new PIPE_TRANSFER_DISCARD_* for buffer object.
In memory mapping buffer objects make use of
PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE and PIPE_TRANSFER_DISCARD_RANGE
when appropriate.
Signed-off-by: Mathias Fröhlich <Mathias.Froehlich at web.de>
---
src/mesa/state_tracker/st_cb_bufferobjects.c | 14 +++++++++-----
1 files changed, 9 insertions(+), 5 deletions(-)
diff --git a/src/mesa/state_tracker/st_cb_bufferobjects.c b/src/mesa/state_tracker/st_cb_bufferobjects.c
index 12528f4..b9b606d 100644
--- a/src/mesa/state_tracker/st_cb_bufferobjects.c
+++ b/src/mesa/state_tracker/st_cb_bufferobjects.c
@@ -301,11 +301,15 @@ st_bufferobj_map_range(struct gl_context *ctx, GLenum target,
if (access & GL_MAP_FLUSH_EXPLICIT_BIT)
flags |= PIPE_TRANSFER_FLUSH_EXPLICIT;
- if (access & GL_MAP_INVALIDATE_RANGE_BIT)
- flags |= PIPE_TRANSFER_DISCARD;
-
- if (access & GL_MAP_INVALIDATE_BUFFER_BIT)
- flags |= PIPE_TRANSFER_DISCARD;
+ if (access & GL_MAP_INVALIDATE_BUFFER_BIT) {
+ flags |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
+ }
+ else if (access & GL_MAP_INVALIDATE_RANGE_BIT) {
+ if (offset == 0 && length == obj->Size)
+ flags |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
+ else
+ flags |= PIPE_TRANSFER_DISCARD_RANGE;
+ }
if (access & GL_MAP_UNSYNCHRONIZED_BIT)
flags |= PIPE_TRANSFER_UNSYNCHRONIZED;
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