Rework ppmviewer to fit our shiny new imageviewer framework. FS#11818 by me.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29012 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 44 insertions, 0 deletions

diff --git a/apps/plugins/imageviewer/ppm/ppm_decoder.h b/apps/plugins/imageviewer/ppm/ppm_decoder.h
new file mode 100644
index 0000000..edd1bcb
--- /dev/null
+++ b/apps/plugins/imageviewer/ppm/ppm_decoder.h
@@ -0,0 +1,44 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2010 Marcin Bukat
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/* Magic constants. */
+#define PPM_MAGIC1 'P'
+#define PPM_MAGIC2 '3'
+#define RPPM_MAGIC2 '6'
+#define PPM_FORMAT (PPM_MAGIC1 * 256 + PPM_MAGIC2)
+#define RPPM_FORMAT (PPM_MAGIC1 * 256 + RPPM_MAGIC2)
+
+#define PPM_OVERALLMAXVAL 65535
+
+#define ppm_error(...) rb->splashf(HZ*2, __VA_ARGS__ )
+
+struct ppm_info {
+    int x;
+    int y;
+    int maxval;
+    int format;
+    unsigned char *buf;
+    size_t buf_size;
+    unsigned int native_img_size;
+};
+
+/* public prototype */
+int read_ppm(int fd, struct ppm_info *ppm);