st/va: do not destroy old buffer when new one failed

If formats are not the same vlVaPutImage re-creates the video
buffer with the right format. But if the creation of this new
video buffer fails then the surface looses its current buffer.
Let's just destroy the previous buffer on success.

Signed-off-by: Julien Isorce <j.isorce@samsung.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

diff --git a/src/gallium/state_trackers/va/image.c b/src/gallium/state_trackers/va/image.c
index 0d961b1f8a2cc6c95405a9428ccdf924cd2eece7..b0c720de1078e1fc2d1170376f8c4dee077faaf1 100644 (file)
--- a/src/gallium/state_trackers/va/image.c
+++ b/src/gallium/state_trackers/va/image.c
@@ -346,13 +346,20 @@ vlVaPutImage(VADriverContextP ctx, VASurfaceID surface, VAImageID image,
    if (format == PIPE_FORMAT_NONE)
       return VA_STATUS_ERROR_OPERATION_FAILED;
 
-   if (surf->buffer == NULL || format != surf->buffer->buffer_format) {
-      if (surf->buffer)
-         surf->buffer->destroy(surf->buffer);
+   if (format != surf->buffer->buffer_format) {
+      struct pipe_video_buffer *tmp_buf;
+      enum pipe_format old_surf_format = surf->templat.buffer_format;
+
       surf->templat.buffer_format = format;
-      surf->buffer = drv->pipe->create_video_buffer(drv->pipe, &surf->templat);
-      if (!surf->buffer)
-         return VA_STATUS_ERROR_ALLOCATION_FAILED;
+      tmp_buf = drv->pipe->create_video_buffer(drv->pipe, &surf->templat);
+
+      if (!tmp_buf) {
+          surf->templat.buffer_format = old_surf_format;
+          return VA_STATUS_ERROR_ALLOCATION_FAILED;
+      }
+
+      surf->buffer->destroy(surf->buffer);
+      surf->buffer = tmp_buf;
    }
 
    views = surf->buffer->get_sampler_view_planes(surf->buffer);