[PATCH 5/5] wined3d: Disable depth textures with backbuffer ORM.

[Henri Verbeet]

On Mon, 13 Jul 2020 at 16:31, Matteo Bruni <mbruni at codeweavers.com> wrote:
>
> We don't have any way to copy the depth buffer from the DRAWABLE to the
> TEXTURE location, aside from FBOs.
>
We could if we really wanted to, but this seems the better option, yes.

> @@ -1747,6 +1747,12 @@ HRESULT CDECL wined3d_check_device_format(const struct wined3d *wined3d,
>          if (bind_flags == WINED3D_BIND_DEPTH_STENCIL && gl_type == WINED3D_GL_RES_TYPE_TEX_3D)
>              continue;
>
> +        if (!(~bind_flags & (WINED3D_BIND_DEPTH_STENCIL | WINED3D_BIND_SHADER_RESOURCE))
> +                && wined3d_settings.offscreen_rendering_mode != ORM_FBO)
> +        {
> +            TRACE("Requested depth/stencil texture with no FBO support, that's not supported.\n");
> +            return WINED3DERR_NOTAVAILABLE;
> +        }
wined3d_check_device_format() is the wrong place for this; if the
format does not support WINED3D_BIND_SHADER_RESOURCE,
WINED3DFMT_FLAG_TEXTURE should not be set. The most appropriate place
seems query_internal_format(), similar to the existing
ARB_DEPTH_TEXTURE check.