From d17b35e671ae7c6ab6b89973506d12b958d2264d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Fri, 15 Jul 2016 15:44:29 +0200 Subject: gallium: add PIPE_FLUSH_DEFERRED There are 2 uses: - Asynchronous flushing for multithreaded drivers. - Return a fence without flushing (mid-command-buffer fence). The driver can defer flushing until fence_finish is called. This is required to make Bioshock Infinite faster, which creates 1000 fences (flushes) per frame. Reviewed-by: Edward O'Callaghan Reviewed-by: Rob Clark --- src/gallium/docs/source/context.rst | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'src/gallium/docs') diff --git a/src/gallium/docs/source/context.rst b/src/gallium/docs/source/context.rst index 05c6f11..8fb621b 100644 --- a/src/gallium/docs/source/context.rst +++ b/src/gallium/docs/source/context.rst @@ -463,6 +463,16 @@ Flushing ``flush`` +PIPE_FLUSH_END_OF_FRAME: Whether the flush marks the end of frame. + +PIPE_FLUSH_DEFERRED: It is not required to flush right away, but it is required +to return a valid fence. The behavior of fence_finish or any other call isn't +changed. The only side effect can be that fence_finish will wait a little +longer. No guidance is given as to how drivers should implement fence_finish +with deferred flushes. If some drivers can't do deferred flushes safely, they +should just ignore the flag. + + ``flush_resource`` -- cgit v1.1