Re: [PATCH 0/2] MR7938: Draft: winemac: Use IOSurface to update native window layers instead of CGImage.

[Brendan Shanks (＠bshanks)]

Brendan Shanks (@bshanks) commented about dlls/winemac.drv/surface.c:
> -
>        BYTE *dst = IOSurfaceGetBaseAddress(io_surface);
> -
>        UINT x, y;
> -
>        UINT src_row_bytes = shape_info->bmiHeader.biSizeImage / abs(shape_info->bmiHeader.biHeight);
> -
> -
>        for (y = 0; y < IOSurfaceGetHeight(io_surface); y++)
> -
>        {
> -
>            const BYTE *src_row = src + y * src_row_bytes;
> -
>            BYTE *dst_row = dst + y * IOSurfaceGetBytesPerRow(io_surface);
> -
>            for (x = 0; x < IOSurfaceGetWidth(io_surface); x++)
> -
>            {
> -
>                BYTE bit = (src_row[x / 8] >> (7 - (x % 8))) & 1;
> -
>                dst_row[x * 4] = bit ? 0 : 255;
> -
>            }
> -
>        }
> -
>    }
> - }

Need to lock/unlock `io_surface` around this whole block