[PATCH 5/5] wined3d: introduce a new wined3d_texture_blt function

[Henri Verbeet]

On 15 October 2015 at 15:41, Riccardo Bortolato <rikyz619 at gmail.com> wrote:
> +HRESULT CDECL wined3d_texture_blt(struct wined3d_texture *dst_texture, unsigned int dst_sub_resource_idx, const RECT *dst_rect_in,
> +        struct wined3d_texture *src_texture, unsigned int src_sub_resource_idx, const RECT *src_rect_in, DWORD flags,
> +        const WINEDDBLTFX *fx, enum wined3d_texture_filter_type filter)
> +{
> +    struct wined3d_resource *dst_resource, *src_resource;
> +
> +    TRACE("dst_texture %p, dst_sub_resource_idx %u, src_texture %p, src_sub_resource_idx %u.\n",
> +            dst_texture, dst_sub_resource_idx, src_texture, src_sub_resource_idx);
> +
> +    dst_resource = wined3d_texture_get_sub_resource(dst_texture, dst_sub_resource_idx);
> +    src_resource = wined3d_texture_get_sub_resource(src_texture, src_sub_resource_idx);
> +
> +    if (!dst_resource || !src_resource)
> +        return WINED3DERR_INVALIDCALL;
> +
> +    return wined3d_surface_blt(surface_from_resource(dst_resource), dst_rect_in,
> +        surface_from_resource(src_resource), src_rect_in, flags, fx, filter);
> +}
You can't assume src_resource and dst_resource are surfaces.