[Mesa-dev] [PATCH 03/23] unpack: support unpacking MESA_FORMAT_ARGB2101010

[Ian Romanick]

On 01/04/2013 06:41 PM, Jordan Justen wrote:
> Signed-off-by: Jordan Justen <jordan.l.justen at intel.com>

I believe this should be marked for the stable branch.

> ---
>   src/mesa/main/format_unpack.c |   18 ++++++++++++++++++
>   1 file changed, 18 insertions(+)
>
> diff --git a/src/mesa/main/format_unpack.c b/src/mesa/main/format_unpack.c
> index d34a27b..92ce869 100644
> --- a/src/mesa/main/format_unpack.c
> +++ b/src/mesa/main/format_unpack.c
> @@ -2696,6 +2696,20 @@ unpack_int_rgba_ABGR2101010_UINT(const GLuint *src, GLuint dst[][4], GLuint n)
>      }
>   }
>
> +static void
> +unpack_int_rgba_ARGB2101010(const GLuint *src, GLuint dst[][4], GLuint n)
> +{
> +   unsigned int i;
> +
> +   for (i = 0; i < n; i++) {
> +      GLuint tmp = src[i];
> +      dst[i][0] = (tmp >> 20) & 0x3ff;
> +      dst[i][1] = (tmp >> 10) & 0x3ff;
> +      dst[i][2] = (tmp >> 0) & 0x3ff;
> +      dst[i][3] = (tmp >> 30) & 0x3;
> +   }
> +}
> +
>   void
>   _mesa_unpack_uint_rgba_row(gl_format format, GLuint n,
>                              const void *src, GLuint dst[][4])
> @@ -2871,6 +2885,10 @@ _mesa_unpack_uint_rgba_row(gl_format format, GLuint n,
>         unpack_int_rgba_ABGR2101010_UINT(src, dst, n);
>         break;
>
> +   case MESA_FORMAT_ARGB2101010:
> +      unpack_int_rgba_ARGB2101010(src, dst, n);
> +      break;
> +
>      default:
>         _mesa_problem(NULL, "%s: bad format %s", __FUNCTION__,
>                       _mesa_get_format_name(format));
>