forked from len0rd/rockbox
423350ec4d
* Piles of warnings in miniz when built with modern toolchain * Pointer arithematic error in PRNG * Casting between int and void * for file descriptors * Warning on non-color targets Remaining: * Failure on XRGB888 LCDs due to issue with core LCD macros * Failure on interleaved greyscale LCDs (?) * HTML manual build failure Change-Id: Ibf6d2c001ec8daf583731d5da15b86b5352773e7
122 lines
2.7 KiB
C
122 lines
2.7 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Port of xrick, a Rick Dangerous clone, to Rockbox.
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* See http://www.bigorno.net/xrick/
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*
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* Copyright (C) 2008-2014 Pierluigi Vicinanza
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "xrick/system/system.h"
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#include "xrick/config.h"
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#include "xrick/util.h"
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#include "plugin.h"
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#define XRICK_GAME_DIR ROCKBOX_DIR "/xrick/"
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/*
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* Global variables
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*/
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const char *sysfile_defaultPath = XRICK_GAME_DIR;
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/*
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* Local variables
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*/
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static char *rootPath = NULL;
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/*
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*
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*/
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bool sysfile_setRootPath(const char *name)
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{
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rootPath = u_strdup(name);
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return (rootPath != NULL);
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}
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/*
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*
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*/
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void sysfile_clearRootPath()
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{
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sysmem_pop(rootPath);
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rootPath = NULL;
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}
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/*
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* Open a data file.
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*/
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file_t sysfile_open(const char *name)
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{
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long fd;
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size_t fullPathLength = rb->strlen(rootPath) + rb->strlen(name) + 2;
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char *fullPath = sysmem_push(fullPathLength);
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if (!fullPath)
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{
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return NULL;
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}
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rb->snprintf(fullPath, fullPathLength, "%s/%s", rootPath, name);
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fd = rb->open(fullPath, O_RDONLY);
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sysmem_pop(fullPath);
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/*
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* note: I've never seen zero/NULL being used as a file descriptor under Rockbox.
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* Putting a check here in case this will ever happen (will need a fix).
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*/
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if (fd == 0)
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{
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sys_error("(file) unsupported file descriptor (zero/NULL) being used");
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}
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if (fd < 0)
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{
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return NULL;
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}
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return (file_t)fd;
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}
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/*
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* Read a file within a data archive.
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*/
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int sysfile_read(file_t file, void *buf, size_t size, size_t count)
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{
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long fd = (long)file;
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return (rb->read(fd, buf, size * count) / size);
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}
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/*
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* Seek.
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*/
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int sysfile_seek(file_t file, long offset, int origin)
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{
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long fd = (long)file;
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return rb->lseek(fd, offset, origin);
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}
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/*
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* Close a file within a data archive.
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*/
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void sysfile_close(file_t file)
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{
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long fd = (long)file;
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rb->close(fd);
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}
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/* eof */
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