From 1cdb4da1d6ce94d947e41d4f0e568074f4f59577 Mon Sep 17 00:00:00 2001 From: Julien Isorce Date: Tue, 14 Jun 2016 08:40:33 +0100 Subject: st/va: ensure linear memory for dmabuf MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In order to do zero-copy between two different devices the memory should not be tiled. Tested with GStreamer on a laptop that has 2 GPUs: 1- gstvaapidecode: HW decoding and dmabuf export with nouveau driver on Nvidia GPU. 2- glimagesink: EGLImage imports dmabuf on Intel GPU. TEST: DRI_PRIME=1 gst-launch vaapidecodebin ! glimagesink Signed-off-by: Julien Isorce Reviewed-by: Christian König --- src/gallium/state_trackers/va/surface.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'src/gallium/state_trackers/va') diff --git a/src/gallium/state_trackers/va/surface.c b/src/gallium/state_trackers/va/surface.c index 8a6a397..5efb893 100644 --- a/src/gallium/state_trackers/va/surface.c +++ b/src/gallium/state_trackers/va/surface.c @@ -621,6 +621,14 @@ vlVaCreateSurfaces2(VADriverContextP ctx, unsigned int format, switch (memory_type) { case VA_SURFACE_ATTRIB_MEM_TYPE_VA: + /* The application will clear the TILING flag when the surface is + * intended to be exported as dmabuf. Adding shared flag because not + * null memory_attibute means VASurfaceAttribExternalBuffers is used. + */ + if (memory_attibute && + !(memory_attibute->flags & VA_SURFACE_EXTBUF_DESC_ENABLE_TILING)) + templat.bind = PIPE_BIND_LINEAR | PIPE_BIND_SHARED; + surf->buffer = drv->pipe->create_video_buffer(drv->pipe, &templat); if (!surf->buffer) { FREE(surf); -- cgit v1.1