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46f333cc8e
It was implemented for Audacious only to open companion NWA files, but current version has no need for it. In case there is some obscure thing that needs it, Audacious's vfs.cc should translate or return realnames transparently, without having to modify other streamfiles.
107 lines
2.9 KiB
C++
107 lines
2.9 KiB
C++
#include <glib.h>
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#include <cstdlib>
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#include <libaudcore/plugin.h>
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#include "../src/vgmstream.h"
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#include "plugin.h"
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#include "vfs.h"
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typedef struct _VFSSTREAMFILE {
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STREAMFILE sf;
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VFSFile *vfsFile;
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off_t offset;
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char name[32768];
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//char realname[32768];
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} VFSSTREAMFILE;
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static STREAMFILE *open_vfs_by_VFSFILE(VFSFile *file, const char *path);
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static size_t read_vfs(VFSSTREAMFILE *streamfile, uint8_t *dest, off_t offset,
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size_t length) {
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size_t sz;
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// if the offsets don't match, then we need to perform a seek
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if (streamfile->offset != offset) {
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streamfile->vfsFile->fseek(offset, VFS_SEEK_SET);
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streamfile->offset = offset;
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}
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sz = streamfile->vfsFile->fread(dest, 1, length);
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// increment our current offset
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streamfile->offset += sz;
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return sz;
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}
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static void close_vfs(VFSSTREAMFILE *streamfile) {
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debugMessage("close_vfs");
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free(streamfile->vfsFile);
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free(streamfile);
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}
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static size_t get_size_vfs(VFSSTREAMFILE *streamfile) {
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return streamfile->vfsFile->fsize();
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}
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static size_t get_offset_vfs(VFSSTREAMFILE *streamfile) {
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return streamfile->offset;
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}
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static void get_name_vfs(VFSSTREAMFILE *streamfile, char *buffer,
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size_t length) {
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strncpy(buffer, streamfile->name, length);
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buffer[length - 1] = '\0';
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}
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static STREAMFILE *open_vfs_impl(VFSSTREAMFILE *streamfile,
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const char *const filename,
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size_t buffersize) {
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if (!filename)
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return NULL;
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return open_vfs(filename);
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}
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STREAMFILE *open_vfs_by_VFSFILE(VFSFile *file, const char *path) {
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VFSSTREAMFILE *streamfile = (VFSSTREAMFILE *)malloc(sizeof(VFSSTREAMFILE));
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if (!streamfile)
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return NULL;
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// success, set our pointers
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memset(streamfile, 0, sizeof(VFSSTREAMFILE));
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streamfile->sf.read = read_vfs;
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streamfile->sf.get_size = get_size_vfs;
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streamfile->sf.get_offset = get_offset_vfs;
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streamfile->sf.get_name = get_name_vfs;
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streamfile->sf.open = open_vfs_impl;
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streamfile->sf.close = close_vfs;
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streamfile->vfsFile = file;
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streamfile->offset = 0;
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strncpy(streamfile->name, path, sizeof(streamfile->name));
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streamfile->name[sizeof(streamfile->name) - 1] = '\0';
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// for reference, actual file path ("name" has protocol path, file://...).
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// name should work for all situations but in case it's needed again maybe
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// get_name should always return realname, as it's used to open companion VFSFiles
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//{
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// gchar *realname = g_filename_from_uri(path, NULL, NULL);
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// strncpy(streamfile->realname, realname, sizeof(streamfile->realname));
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// streamfile->realname[sizeof(streamfile->realname) - 1] = '\0';
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// g_free(realname);
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//}
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return &streamfile->sf;
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}
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STREAMFILE *open_vfs(const char *path) {
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VFSFile *vfsFile = new VFSFile(path, "rb");
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if (!vfsFile || !*vfsFile) {
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delete vfsFile;
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return NULL;
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}
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return open_vfs_by_VFSFILE(vfsFile, path);
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}
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