[PATCH] winemac.drv: Also return the number of pixel formats if the caller didn't supply a PIXELFORMATDESCRIPTOR.

[Ken Thomases]

On Jul 23, 2013, at 10:26 PM, Charles Davis wrote:

> This is akin to what glxdrv already does, and apparently what Windows
> does. It allows the GLView sample from the OpenGL SuperBible to
> correctly enumerate pixel formats with the Mac driver.
> ---
> dlls/winemac.drv/opengl.c |    2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/dlls/winemac.drv/opengl.c b/dlls/winemac.drv/opengl.c
> index 0922371..fb294d1 100644
> --- a/dlls/winemac.drv/opengl.c
> +++ b/dlls/winemac.drv/opengl.c
> @@ -3281,7 +3281,7 @@ int macdrv_wglDescribePixelFormat(HDC hdc, int fmt, UINT size, PIXELFORMATDESCRI
> 
>     TRACE("hdc %p fmt %d size %u descr %p\n", hdc, fmt, size, descr);
> 
> -    if (fmt <= 0 || fmt > ret) return ret;
> +    if (fmt <= 0 || fmt > ret || !descr) return ret;
>     if (size < sizeof(*descr)) return 0;
> 
>     pf = &pixel_formats[fmt - 1];
> -- 
> 1.7.5.4

Looks good to me.  Thanks!

-Ken