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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "backends/fs/stdiostream.h"
#include <errno.h>
#if defined(MACOSX) || defined(IPHONE)
#include "CoreFoundation/CoreFoundation.h"
#endif
#ifdef __PLAYSTATION2__
// for those replaced fopen/fread/etc functions
typedef unsigned long uint64;
typedef signed long int64;
#include "backends/platform/ps2/fileio.h"
#define fopen(a, b) ps2_fopen(a, b)
#define fclose(a) ps2_fclose(a)
#define fseek(a, b, c) ps2_fseek(a, b, c)
#define ftell(a) ps2_ftell(a)
#define feof(a) ps2_feof(a)
#define fread(a, b, c, d) ps2_fread(a, b, c, d)
#define fwrite(a, b, c, d) ps2_fwrite(a, b, c, d)
//#define fprintf ps2_fprintf // used in common/util.cpp
//#define fflush(a) ps2_fflush(a) // used in common/util.cpp
//#define fgetc(a) ps2_fgetc(a) // not used
//#define fgets(a, b, c) ps2_fgets(a, b, c) // not used
//#define fputc(a, b) ps2_fputc(a, b) // not used
//#define fputs(a, b) ps2_fputs(a, b) // not used
//#define fsize(a) ps2_fsize(a) // not used -- and it is not a standard function either
#endif
#ifdef __DS__
// These functions replease the standard library functions of the same name.
// As this header is included after the standard one, I have the chance to #define
// all of these to my own code.
//
// A #define is the only way, as redefinig the functions would cause linker errors.
// These functions need to be #undef'ed, as their original definition
// in devkitarm is done with #includes (ugh!)
#undef feof
#undef clearerr
//#undef getc
//#undef ferror
#include "backends/fs/ds/ds-fs.h"
//void std_fprintf(FILE* handle, const char* fmt, ...); // used in common/util.cpp
//void std_fflush(FILE* handle); // used in common/util.cpp
//char* std_fgets(char* str, int size, FILE* file); // not used
//int std_getc(FILE* handle); // not used
//char* std_getcwd(char* dir, int dunno); // not used
//void std_cwd(char* dir); // not used
//int std_ferror(FILE* handle); // not used
// Only functions used in the ScummVM source have been defined here!
#define fopen(name, mode) DS::std_fopen(name, mode)
#define fclose(handle) DS::std_fclose(handle)
#define fread(ptr, size, items, file) DS::std_fread(ptr, size, items, file)
#define fwrite(ptr, size, items, file) DS::std_fwrite(ptr, size, items, file)
#define feof(handle) DS::std_feof(handle)
#define ftell(handle) DS::std_ftell(handle)
#define fseek(handle, offset, whence) DS::std_fseek(handle, offset, whence)
#define clearerr(handle) DS::std_clearerr(handle)
//#define printf(fmt, ...) consolePrintf(fmt, ##__VA_ARGS__)
//#define fprintf(file, fmt, ...) { char str[128]; sprintf(str, fmt, ##__VA_ARGS__); DS::std_fwrite(str, strlen(str), 1, file); }
//#define fflush(file) DS::std_fflush(file) // used in common/util.cpp
//#define fgets(str, size, file) DS::std_fgets(str, size, file) // not used
//#define getc(handle) DS::std_getc(handle) // not used
//#define getcwd(dir, dunno) DS::std_getcwd(dir, dunno) // not used
#define ferror(handle) DS::std_ferror(handle)
#endif
StdioStream::StdioStream(void *handle) : _handle(handle) {
assert(handle);
}
StdioStream::~StdioStream() {
fclose((FILE *)_handle);
}
bool StdioStream::ioFailed() const {
return eos() || ferror((FILE *)_handle) != 0;
}
void StdioStream::clearIOFailed() {
clearerr((FILE *)_handle);
}
bool StdioStream::eos() const {
return feof((FILE *)_handle) != 0;
}
uint32 StdioStream::pos() const {
// FIXME: ftell can return -1 to indicate an error (in which case errno gets set)
// Maybe we should support that, too?
return ftell((FILE *)_handle);
}
uint32 StdioStream::size() const {
uint32 oldPos = ftell((FILE *)_handle);
fseek((FILE *)_handle, 0, SEEK_END);
uint32 length = ftell((FILE *)_handle);
fseek((FILE *)_handle, oldPos, SEEK_SET);
return length;
}
void StdioStream::seek(int32 offs, int whence) {
assert(_handle);
if (fseek((FILE *)_handle, offs, whence) != 0)
clearerr((FILE *)_handle); // FIXME: why do we call clearerr here?
// FIXME: fseek has a return value to indicate errors;
// Maybe we should support that, too?
}
uint32 StdioStream::read(void *ptr, uint32 len) {
return (uint32)fread((byte *)ptr, 1, len, (FILE *)_handle);
}
uint32 StdioStream::write(const void *ptr, uint32 len) {
return (uint32)fwrite(ptr, 1, len, (FILE *)_handle);
}
void StdioStream::flush() {
// TODO: Should check the return value of fflush, and if it is non-zero,
// check errno and set an error flag.
fflush((FILE *)_handle);
}
StdioStream *StdioStream::makeFromPath(const Common::String &path, bool writeMode) {
FILE *handle = fopen(path.c_str(), writeMode ? "wb" : "rb");
#ifdef __amigaos4__
//
// Work around for possibility that someone uses AmigaOS "newlib" build
// with SmartFileSystem (blocksize 512 bytes), leading to buffer size
// being only 512 bytes. "Clib2" sets the buffer size to 8KB, resulting
// smooth movie playback. This forces the buffer to be enough also when
// using "newlib" compile on SFS.
//
if (handle && !writeMode) {
setvbuf(handle, NULL, _IOFBF, 8192);
}
#endif
if (handle)
return new StdioStream(handle);
return 0;
}
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