windowscodecs: Fix calculation of GIF local color table size from decoder data.

fd0cbf9e · Dmitry Timoshkov · Alexandre Julliard · 8ec1008f · fd0cbf9e
Commit fd0cbf9e authored Sep 14, 2012 by Dmitry Timoshkov Committed by Alexandre Julliard Sep 14, 2012
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gifformat.c dlls/windowscodecs/gifformat.c +1 -1

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--- a/dlls/windowscodecs/gifformat.c
+++ b/dlls/windowscodecs/gifformat.c
@@ -707,7 +707,7 @@ static HRESULT create_IMD_metadata_reader(GifFrameDecode *This, IWICMetadataRead
        /* local_color_table_flag */
        IMD_data.packed |= 1 << 7;
        /* local_color_table_size */
-        IMD_data.packed |= This->frame->ImageDesc.ColorMap->BitsPerPixel;
+        IMD_data.packed |= This->frame->ImageDesc.ColorMap->BitsPerPixel - 1;
        /* FIXME: sort_flag */
    }