[Libva] [PATCH][LIBVA-INTEL-DRIVER] VPP: Combine the CSC/Scaling together to optimize the performance

[Xiang, Haihao]

On Tue, 2015-06-30 at 15:11 -0400, Zhao Yakui wrote:
> Currently it is divided into two steps when the video format is invovled.
> In such case it is not efficient.
> 
> Signed-off-by: Zhao Yakui <yakui.zhao at intel.com>
> ---
>  src/i965_post_processing.c | 23 +++++++++++++++++++++++
>  1 file changed, 23 insertions(+)
> 
> diff --git a/src/i965_post_processing.c b/src/i965_post_processing.c
> index f78d7c9..e2c6fb6 100755
> --- a/src/i965_post_processing.c
> +++ b/src/i965_post_processing.c
> @@ -5947,6 +5947,29 @@ i965_proc_picture(VADriverContextP ctx,
>          dst_rect.height = obj_surface->orig_height;
>      }
>  
> +    if (IS_GEN7(i965->intel.device_info) ||
> +        IS_GEN8(i965->intel.device_info) ||
> +        IS_GEN9(i965->intel.device_info)) {
> +        unsigned int saved_filter_flag;
> +        struct i965_post_processing_context *i965pp_context = i965->pp_context;
> +
> +        saved_filter_flag = i965pp_context->filter_flags;
> +        i965pp_context->filter_flags = VA_FILTER_SCALING_HQ;
> +
> +        dst_surface.base = (struct object_base *)obj_surface;
> +        dst_surface.type = I965_SURFACE_TYPE_SURFACE;
> +        i965_image_processing(ctx, &src_surface, &src_rect, &dst_surface, &dst_rect);

i965_image_processing() doesn't handle the background color set in
VAProcPipelineParameterBuffer.

> +
> +        i965pp_context->filter_flags = saved_filter_flag;
> +
> +        if (num_tmp_surfaces)
> +            i965_DestroySurfaces(ctx,
> +                             tmp_surfaces,
> +                             num_tmp_surfaces);
> +
> +        return VA_STATUS_SUCCESS;
> +    }
> +
>      int csc_needed = 0;
>      if (obj_surface->fourcc && obj_surface->fourcc !=  VA_FOURCC_NV12){
>          csc_needed = 1;