[Mesa-dev] [PATCH v4 2/9] st/va: do not destroy old buffer when new one failed

[Julien Isorce]

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 at samsung.com>
---
 src/gallium/state_trackers/va/image.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/src/gallium/state_trackers/va/image.c b/src/gallium/state_trackers/va/image.c
index 84d94c8..8e64673 100644
--- 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);
-- 
1.9.1