[PATCH] wined3d: Use GL_APPLE_rgb_422 for UYVY and YUY2 surfaces.

[Henri Verbeet]

On Tue, 14 Apr 2020 at 08:18, Chip Davis <cdavis at codeweavers.com> wrote:
> @@ -12499,6 +12499,16 @@ static void gen_packed_yuv_read(struct wined3d_string_buffer *buffer,
>
>      tex = needs_legacy_glsl_syntax(gl_info) ? tex_type : "";
>
> +    if (gl_info->supported[APPLE_RGB_422])
> +    {
> +        /* In this case, things are much simpler. The only thing we have to do here
> +         * is YUV-RGB conversion. */
> +        shader_addline(buffer, "    vec3 yuv = vec3(texture%s(sampler, out_texcoord.xy));\n", tex);
> +        shader_addline(buffer, "    luminance = yuv.y;\n");
> +        shader_addline(buffer, "    chroma = yuv.xz;\n");
> +        return;
> +    }
It seems arbitrary to reuse COMPLEX_FIXUP_UYVY/COMPLEX_FIXUP_YUY2 for this.