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surface: add support for GEM buffer imports.

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Add support for GEM buffer imports. This is useful for VA/EGL interop
with legacy Mesa implementations, or when it is desired or required to
support outbound textures for instance.

https://bugzilla.gnome.org/show_bug.cgi?id=736718
This commit is contained in:
Gwenole Beauchesne 2014-09-15 15:27:50 +02:00
parent 011f9bd6cb
commit 797632139f
2 changed files with 43 additions and 0 deletions
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38
gst-libs/gst/vaapi/gstvaapisurface_drm.c
View file

@ -150,3 +150,41 @@ gst_vaapi_surface_new_with_dma_buf_handle (GstVaapiDisplay * display,
gst_vaapi_buffer_proxy_unref (proxy);
return surface;
}
/**
* gst_vaapi_surface_new_with_dma_buf_handle:
* @display: a #GstVaapiDisplay
* @name: the DRM GEM buffer name
* @size: the underlying DRM buffer size
* @format: the desired surface format
* @width: the desired surface width in pixels
* @height: the desired surface height in pixels
* @offset: the offsets to each plane
* @stride: the pitches for each plane
*
* Creates a new #GstVaapiSurface with an external DRM GEM buffer
* name. The newly created VA surfaces owns the supplied buffer
* handle.
*
* Return value: the newly allocated #GstVaapiSurface object, or %NULL
* if creation from DRM PRIME fd failed, or is not supported
*/
GstVaapiSurface *
gst_vaapi_surface_new_with_gem_buf_handle (GstVaapiDisplay * display,
guint32 name, guint size, GstVideoFormat format, guint width, guint height,
gsize offset[GST_VIDEO_MAX_PLANES], gint stride[GST_VIDEO_MAX_PLANES])
{
GstVaapiBufferProxy *proxy;
GstVaapiSurface *surface;
GstVideoInfo vi;
proxy = gst_vaapi_buffer_proxy_new ((guintptr) name,
GST_VAAPI_BUFFER_MEMORY_TYPE_GEM_BUF, size, NULL, NULL);
if (!proxy)
return NULL;
fill_video_info (&vi, format, width, height, offset, stride);
surface = gst_vaapi_surface_new_from_buffer_proxy (display, proxy, &vi);
gst_vaapi_buffer_proxy_unref (proxy);
return surface;
}

5
gst-libs/gst/vaapi/gstvaapisurface_drm.h
View file

@ -39,6 +39,11 @@ gst_vaapi_surface_new_with_dma_buf_handle (GstVaapiDisplay * display,
gint fd, guint size, GstVideoFormat format, guint width, guint height,
gsize offset[GST_VIDEO_MAX_PLANES], gint stride[GST_VIDEO_MAX_PLANES]);
GstVaapiSurface *
gst_vaapi_surface_new_with_gem_buf_handle (GstVaapiDisplay * display,
guint32 name, guint size, GstVideoFormat format, guint width, guint height,
gsize offset[GST_VIDEO_MAX_PLANES], gint stride[GST_VIDEO_MAX_PLANES]);
G_END_DECLS
#endif /* GST_VAAPI_SURFACE_DRM_H */