winemac.drv: Also return the number of pixel formats if the caller didn't supply…

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

winemac.drv: Also return the number of pixel formats if the caller didn't supply…
05a68dbc · Charles Davis · Alexandre Julliard · dcaeb6b4 · 05a68dbc
Commit 05a68dbc authored Jul 23, 2013 by Charles Davis Committed by Alexandre Julliard Jul 27, 2013
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opengl.c dlls/winemac.drv/opengl.c +1 -1

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--- 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];