1 files changed, 122 insertions, 0 deletions

diff --git a/apps/plugins/xrick/system/sysfile_rockbox.c b/apps/plugins/xrick/system/sysfile_rockbox.c
new file mode 100644
index 0000000000..06227caec1
--- /dev/null
+++ b/apps/plugins/xrick/system/sysfile_rockbox.c
@@ -0,0 +1,122 @@
+ /***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Port of xrick, a Rick Dangerous clone, to Rockbox.
+ * See http://www.bigorno.net/xrick/
+ *
+ * Copyright (C) 2008-2014 Pierluigi Vicinanza
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+#include "xrick/system/system.h"
+
+#include "xrick/config.h"
+#include "xrick/util.h"
+
+#include "plugin.h"
+
+#define XRICK_GAME_DIR ROCKBOX_DIR "/xrick/"
+
+/*
+ * Global variables
+ */
+const char *sysfile_defaultPath = XRICK_GAME_DIR;
+
+/*
+ * Local variables
+ */
+static char *rootPath = NULL;
+
+/*
+ *
+ */
+bool sysfile_setRootPath(const char *name)
+{
+    rootPath = u_strdup(name);
+    return (rootPath != NULL);
+}
+
+/*
+ *
+ */
+void sysfile_clearRootPath()
+{
+    sysmem_pop(rootPath);
+    rootPath = NULL;
+}
+
+/*
+ * Open a data file.
+ */
+file_t sysfile_open(const char *name)
+{
+    long fd;
+
+    size_t fullPathLength = rb->strlen(rootPath) + rb->strlen(name) + 2;
+    char *fullPath = sysmem_push(fullPathLength);
+    if (!fullPath)
+    {
+        return NULL;
+    }
+    rb->snprintf(fullPath, fullPathLength, "%s/%s", rootPath, name);
+    fd = rb->open(fullPath, O_RDONLY);
+    sysmem_pop(fullPath);
+
+    /*
+     * note: I've never seen zero/NULL being used as a file descriptor under Rockbox.
+     *       Putting a check here in case this will ever happen (will need a fix).
+     */
+    if (fd == 0)
+    {
+        sys_error("(file) unsupported file descriptor (zero/NULL) being used");
+    }
+    if (fd < 0)
+    {
+        return NULL;
+    }
+
+    return (file_t)fd;
+}
+
+/*
+ * Read a file within a data archive.
+ */
+int sysfile_read(file_t file, void *buf, size_t size, size_t count)
+{
+    long fd = (long)file;
+    return (rb->read(fd, buf, size * count) / size);
+}
+
+/*
+ * Seek.
+ */
+int sysfile_seek(file_t file, long offset, int origin)
+{
+    long fd = (long)file;
+    return rb->lseek(fd, offset, origin);
+}
+
+/*
+ * Close a file within a data archive.
+ */
+void sysfile_close(file_t file)
+{
+    long fd = (long)file;
+    rb->close(fd);
+}
+
+/* eof */