[Mesa-dev] [PATCH 1/3] dri: Add another duplicateImage to DRIimageExtension which allows you to create a sRGB view of a DRI image

[Ian Romanick]

On 02/23/2013 07:53 AM, John Kåre Alsaker wrote:
> duplicateImage will allow you to create a linear or sRGB view into a DRIimage you have access to.
> This is useful because compositors may want a specific view which doesn't correspond to the one used by applications.

Please wrap commit messages to 72 characters.

> ---
>   include/GL/internal/dri_interface.h | 21 ++++++++++++++++++++-
>   1 file changed, 20 insertions(+), 1 deletion(-)
>
> diff --git a/include/GL/internal/dri_interface.h b/include/GL/internal/dri_interface.h
> index 42147e9..f4948a8 100644
> --- a/include/GL/internal/dri_interface.h
> +++ b/include/GL/internal/dri_interface.h
> @@ -938,7 +938,7 @@ struct __DRIdri2ExtensionRec {
>    * extensions.
>    */
>   #define __DRI_IMAGE "DRI_IMAGE"
> -#define __DRI_IMAGE_VERSION 6
> +#define __DRI_IMAGE_VERSION 7
>
>   /**
>    * These formats correspond to the similarly named MESA_FORMAT_*
> @@ -1009,6 +1009,15 @@ struct __DRIdri2ExtensionRec {
>   #define __DRI_IMAGE_COMPONENTS_Y_UV	0x3004
>   #define __DRI_IMAGE_COMPONENTS_Y_XUXV	0x3005
>
> +/**
> + * Flags for duplicateImage.
> + *
> + * \since 7
> + */
> +
> +#define __DRI_IMAGE_FLAG_SRGB_VIEW	0x0001
> +#define __DRI_IMAGE_FLAG_LINEAR_VIEW	0x0002
> +
>
>   /**
>    * queryImage attributes
> @@ -1105,6 +1114,7 @@ struct __DRIimageExtensionRec {
>       __DRIimage *(*fromPlanar)(__DRIimage *image, int plane,
>                                 void *loaderPrivate);
>
> +

Spurious whitespace change.

>       /**
>        * Create image from texture.
>        *
> @@ -1117,6 +1127,15 @@ struct __DRIimageExtensionRec {
>                                            int level,
>                                            unsigned *error,
>                                            void *loaderPrivate);
> +
> +   /**
> +    * The new __DRIimage will share the raw content with the old one,
> +    * but it might have a different format.
> +    *
> +    * \since 7
> +    */
> +    __DRIimage *(*duplicateImage)(__DRIscreen *screen, __DRIimage *image,
> +                              unsigned int flags, void *loaderPrivate);
>   };
>
>
>