FS#6321: Universal Image Viewer

This unifies jpeg viewer, png viewer, and bmp viewer to one plugin, image viewer, so that you can navigate through different image formats.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28626 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 46 insertions, 0 deletions

diff --git a/apps/plugins/imageviewer/image_decoder.h b/apps/plugins/imageviewer/image_decoder.h
new file mode 100644
index 0000000..93608b1
--- /dev/null
+++ b/apps/plugins/imageviewer/image_decoder.h
@@ -0,0 +1,46 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * load image decoder.
+ *
+ * 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 _IMAGE_DECODER_H
+#define _IMAGE_DECODER_H
+
+#include "imageviewer.h"
+
+enum image_type {
+    IMAGE_UNKNOWN = -1,
+    IMAGE_BMP = 0,
+    IMAGE_JPEG,
+    IMAGE_PNG,
+    MAX_IMAGE_TYPES
+};
+
+struct loader_info {
+    enum image_type type;
+    const struct imgdec_api *iv;
+    unsigned char* buffer;
+    size_t size;
+};
+
+enum image_type get_image_type(const char *name);
+const struct image_decoder *load_decoder(struct loader_info *loader_info);
+void release_decoder(void);
+
+#endif /* _IMAGE_DECODER_H */