windowscodecs: Handle broken TIFF files without a RowsPerStrip tag.

dlls/windowscodecs/tiffformat.c

@@ -462,8 +462,11 @@ static HRESULT tiff_get_decode_info(TIFF *tiff, tiff_decode_info *decode_info)
     }
     else
     {
-        FIXME("missing RowsPerStrip value\n");
-        return E_FAIL;
+        /* Some broken TIFF files have a single strip and lack the RowsPerStrip tag */
+        decode_info->tile_height = decode_info->height;
+        decode_info->tile_width = decode_info->width;
+        decode_info->tile_stride = ((decode_info->bpp * decode_info->tile_width + 7)/8);
+        decode_info->tile_size = decode_info->tile_height * decode_info->tile_stride;
     }
 
     decode_info->resolution_unit = 0;