mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-11-14 10:37:38 +01:00
133 lines
3.6 KiB
C
133 lines
3.6 KiB
C
/**
|
|
* streamfile for Winamp
|
|
*/
|
|
#include <stdio.h>
|
|
#include <io.h>
|
|
#include "in_vgmstream.h"
|
|
|
|
|
|
/* ************************************* */
|
|
/* IN_UNICODE */
|
|
/* ************************************* */
|
|
|
|
/* opens a utf16 (unicode) path */
|
|
static FILE* wa_fopen(const in_char* wpath) {
|
|
#ifdef UNICODE_INPUT_PLUGIN
|
|
return _wfopen(wpath, L"rb");
|
|
#else
|
|
return fopen(wpath, "rb");
|
|
#endif
|
|
}
|
|
|
|
/* in theory fdopen and _wfdopen are the same, except flags is a wchar */
|
|
#if 0
|
|
/* dupes a utf16 (unicode) file */
|
|
static FILE* wa_fdopen(int fd) {
|
|
#ifdef UNICODE_INPUT_PLUGIN
|
|
return _wfdopen(fd,L"rb");
|
|
#else
|
|
return fdopen(fd,"rb");
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
/* ************************************* */
|
|
/* IN_STREAMFILE */
|
|
/* ************************************* */
|
|
|
|
/* a STREAMFILE that operates via STDIOSTREAMFILE but handles Winamp's unicode (in_char) paths */
|
|
typedef struct {
|
|
STREAMFILE vt;
|
|
STREAMFILE* stdiosf;
|
|
} WINAMP_STREAMFILE;
|
|
|
|
static STREAMFILE* open_winamp_streamfile_by_file(FILE* infile, const char* path);
|
|
//static STREAMFILE* open_winamp_streamfile_by_ipath(const in_char* wpath);
|
|
|
|
static size_t wasf_read(WINAMP_STREAMFILE* sf, uint8_t* dst, offv_t offset, size_t length) {
|
|
return sf->stdiosf->read(sf->stdiosf, dst, offset, length);
|
|
}
|
|
|
|
static size_t wasf_get_size(WINAMP_STREAMFILE* sf) {
|
|
return sf->stdiosf->get_size(sf->stdiosf);
|
|
}
|
|
|
|
static offv_t wasf_get_offset(WINAMP_STREAMFILE* sf) {
|
|
return sf->stdiosf->get_offset(sf->stdiosf);
|
|
}
|
|
|
|
static void wasf_get_name(WINAMP_STREAMFILE* sf, char* buffer, size_t length) {
|
|
sf->stdiosf->get_name(sf->stdiosf, buffer, length);
|
|
}
|
|
|
|
static STREAMFILE* wasf_open(WINAMP_STREAMFILE* sf, const char* const filename, size_t buffersize) {
|
|
in_char wpath[WINAMP_PATH_LIMIT];
|
|
|
|
if (!filename)
|
|
return NULL;
|
|
|
|
/* no need to wfdopen here, may use standard IO */
|
|
/* STREAMFILEs carry char/UTF8 names, convert to wchar for Winamp */
|
|
wa_char_to_ichar(wpath, WINAMP_PATH_LIMIT, filename);
|
|
return open_winamp_streamfile_by_ipath(wpath);
|
|
}
|
|
|
|
static void wasf_close(WINAMP_STREAMFILE* sf) {
|
|
/* closes infile_ref + frees in the internal STDIOSTREAMFILE (fclose for wchar is not needed) */
|
|
sf->stdiosf->close(sf->stdiosf);
|
|
free(sf); /* and the current struct */
|
|
}
|
|
|
|
static STREAMFILE* open_winamp_streamfile_by_file(FILE* file, const char* path) {
|
|
WINAMP_STREAMFILE* this_sf = NULL;
|
|
STREAMFILE* stdiosf = NULL;
|
|
|
|
this_sf = calloc(1,sizeof(WINAMP_STREAMFILE));
|
|
if (!this_sf) goto fail;
|
|
|
|
stdiosf = open_stdio_streamfile_by_file(file, path);
|
|
if (!stdiosf) goto fail;
|
|
|
|
this_sf->vt.read = (void*)wasf_read;
|
|
this_sf->vt.get_size = (void*)wasf_get_size;
|
|
this_sf->vt.get_offset = (void*)wasf_get_offset;
|
|
this_sf->vt.get_name = (void*)wasf_get_name;
|
|
this_sf->vt.open = (void*)wasf_open;
|
|
this_sf->vt.close = (void*)wasf_close;
|
|
|
|
this_sf->stdiosf = stdiosf;
|
|
|
|
return &this_sf->vt;
|
|
|
|
fail:
|
|
close_streamfile(stdiosf);
|
|
free(this_sf);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
STREAMFILE* open_winamp_streamfile_by_ipath(const in_char* wpath) {
|
|
FILE* infile = NULL;
|
|
STREAMFILE* sf;
|
|
char path[WINAMP_PATH_LIMIT];
|
|
|
|
|
|
/* convert to UTF-8 if needed for internal use */
|
|
wa_ichar_to_char(path, WINAMP_PATH_LIMIT, wpath);
|
|
|
|
/* open a FILE from a Winamp (possibly UTF-16) path */
|
|
infile = wa_fopen(wpath);
|
|
if (!infile) {
|
|
/* allow non-existing files in some cases */
|
|
if (!vgmstream_is_virtual_filename(path))
|
|
return NULL;
|
|
}
|
|
|
|
sf = open_winamp_streamfile_by_file(infile, path);
|
|
if (!sf) {
|
|
if (infile) fclose(infile);
|
|
}
|
|
|
|
return sf;
|
|
}
|