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pb_bufmgr_cache: add is_buffer_busy hook and use it instead of non-blocking map

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This is cleaner and implementing the hook is optional.
This commit is contained in:
Marek Olšák 2011-02-13 09:26:07 +01:00
parent 588fa884d2
commit 49579a4df8
2 changed files with 14 additions and 7 deletions
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4
src/gallium/auxiliary/pipebuffer/pb_bufmgr.h
View file

@ -82,6 +82,10 @@ struct pb_manager
*/
void
(*flush)( struct pb_manager *mgr );
boolean
(*is_buffer_busy)( struct pb_manager *mgr,
struct pb_buffer *buf );
};

17
src/gallium/auxiliary/pipebuffer/pb_bufmgr_cache.c
View file

@ -227,8 +227,6 @@ pb_cache_is_buffer_compat(struct pb_cache_buffer *buf,
pb_size size,
const struct pb_desc *desc)
{
void *map;
if(buf->base.base.size < size)
return 0;
@ -242,13 +240,18 @@ pb_cache_is_buffer_compat(struct pb_cache_buffer *buf,
if(!pb_check_usage(desc->usage, buf->base.base.usage))
return 0;
map = pb_map(buf->buffer, PB_USAGE_DONTBLOCK, NULL);
if (!map) {
return -1;
if (buf->mgr->provider->is_buffer_busy) {
if (buf->mgr->provider->is_buffer_busy(buf->mgr->provider, buf->buffer))
return -1;
} else {
void *ptr = pb_map(buf->buffer, PB_USAGE_DONTBLOCK, NULL);
if (!ptr)
return -1;
pb_unmap(buf->buffer);
}
pb_unmap(buf->buffer);
return 1;
}