plugins/lib/feature_wrappers.h to provide easy access to some feature that may be in either API or pluginlib depending on target

pictureflow modified to use feature wrappers, and built on all targets that have tagcache and are swcodec


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19837 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 49 insertions, 0 deletions

diff --git a/apps/plugins/lib/feature_wrappers.h b/apps/plugins/lib/feature_wrappers.h
new file mode 100644
index 0000000000..52750acb61
--- /dev/null
+++ b/apps/plugins/lib/feature_wrappers.h
@@ -0,0 +1,49 @@
+/***************************************************************************
+*             __________               __   ___.
+*   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+*   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+*   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+*   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+*                     \/            \/     \/    \/            \/
+* $Id$
+*
+* Copyright (C) 2009 by Andrew Mahone
+*
+* This defines wrappers for some features which are used differently depending
+* on how the target was built, primarily because of core features being accesed
+* via pluginlib on targets where they are missing from core.
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License
+* as published by the Free Software Foundation; either version 2
+* of the License, or (at your option) any later version.
+*
+* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+* KIND, either express or implied.
+*
+****************************************************************************/
+
+#ifndef _LIB_FEATURE_WRAPPERS_H_
+#define _LIB_FEATURE_WRAPPERS_H_
+
+/* search_albumart_files is only available in core with HAVE_ALBUMART defined,
+ * but can easily be implement in pluginlib as long as the database is
+ * available.
+ */
+#ifdef HAVE_ALBUMART
+#define search_albumart_files rb->search_albumart_files
+#endif
+
+/* This should only be used when loading scaled bitmaps, or using custom output
+ * plugins. The pluginlib loader does not support loading bitmaps unscaled in
+ * native format, so rb->read_bmp_file should always be used directly to load
+ * such images.
+ */
+#if LCD_DEPTH > 1
+#define scaled_read_bmp_file rb->read_bmp_file
+#else
+#define scaled_read_bmp_file read_bmp_file
+#endif
+
+#endif
+