[Mesa-dev] [PATCH v14 09/36] st/dri: enable DRIimage modifier queries

[Lucas Stach]

Am Dienstag, den 30.05.2017, 17:23 +0530 schrieb Varad Gautam:
> From: Varad Gautam <varad.gautam at collabora.com>
> 
> return the modifier selected by the driver when creating this image.
> 
> v2: since we can use winsys_handle->modifier to serve these, remove
>     DRIimage->modifier from v1.
>     use DRM_API_HANDLE_TYPE_KMS instead of DRM_API_HANDLE_TYPE_FD to avoid
>     ownership transfer. (Lucas)
> 
> Suggested-by: Daniel Stone <daniels at collabora.com>
> Signed-off-by: Varad Gautam <varad.gautam at collabora.com>
> Cc: Lucas Stach <l.stach at pengutronix.de>

Reviewed-by: Lucas Stach <l.stach at pengutronix.de>

> ---
>  src/gallium/state_trackers/dri/dri2.c | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/src/gallium/state_trackers/dri/dri2.c b/src/gallium/state_trackers/dri/dri2.c
> index f1794b7..fb1c829 100644
> --- a/src/gallium/state_trackers/dri/dri2.c
> +++ b/src/gallium/state_trackers/dri/dri2.c
> @@ -1088,6 +1088,18 @@ dri2_query_image(__DRIimage *image, int attrib, int *value)
>     case __DRI_IMAGE_ATTRIB_NUM_PLANES:
>        *value = 1;
>        return GL_TRUE;
> +   case __DRI_IMAGE_ATTRIB_MODIFIER_UPPER:
> +      whandle.type = DRM_API_HANDLE_TYPE_KMS;
> +      image->texture->screen->resource_get_handle(image->texture->screen,
> +            NULL, image->texture, &whandle, usage);
> +      *value = (whandle.modifier >> 32) & 0xffffffff;
> +      return GL_TRUE;
> +   case __DRI_IMAGE_ATTRIB_MODIFIER_LOWER:
> +      whandle.type = DRM_API_HANDLE_TYPE_KMS;
> +      image->texture->screen->resource_get_handle(image->texture->screen,
> +            NULL, image->texture, &whandle, usage);
> +      *value = whandle.modifier & 0xffffffff;
> +      return GL_TRUE;
>     default:
>        return GL_FALSE;
>     }