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gallium: clarify reference counting for fence

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Nowhere was it spelled out that the state tracker may expect the pipe
driver to unref the old fence.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Rob Clark 2015-07-08 15:00:51 -04:00
parent 0a8af6361e
commit f60354ee72
1 changed files with 7 additions and 1 deletions
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8
src/gallium/include/pipe/p_context.h
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@ -361,8 +361,14 @@ struct pipe_context {
const void *clear_value,
int clear_value_size);
/** Flush draw commands
/**
* Flush draw commands
*
* NOTE: use screen->fence_reference() (or equivalent) to transfer
* new fence ref to **fence, to ensure that previous fence is unref'd
*
* \param fence if not NULL, an old fence to unref and transfer a
* new fence reference to
* \param flags bitfield of enum pipe_flush_flags values.
*/
void (*flush)(struct pipe_context *pipe,