+++ /dev/null
-/*
- * Copyright (c) 2010, Wei Mingzhi <whistler@openoffice.org>.
- * All Rights Reserved.
- *
- * Based on: Cdrom for Psemu Pro like Emulators
- * By: linuzappz <linuzappz@hotmail.com>
- *
- * 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, see <http://www.gnu.org/licenses>.
- */
-
-#include "cdr.h"
-
-#ifndef USE_NULL
-static char *LibName = N_("CD-ROM Drive Reader");
-#else
-static char *LibName = N_("CDR NULL Plugin");
-#endif
-
-int initial_time = 0;
-
-pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER;
-pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
-
-CacheData *cdcache;
-unsigned char *cdbuffer;
-int cacheaddr;
-
-crdata cr;
-
-unsigned char lastTime[3];
-pthread_t thread;
-int subqread;
-volatile int stopth, found, locked, playing;
-
-long (*ReadTrackT[])() = {
- ReadNormal,
- ReadThreaded,
-};
-
-unsigned char* (*GetBufferT[])() = {
- GetBNormal,
- GetBThreaded,
-};
-
-long (*fReadTrack)();
-unsigned char* (*fGetBuffer)();
-
-void *CdrThread(void *arg);
-
-long CDRinit(void) {
- thread = (pthread_t)-1;
- return 0;
-}
-
-long CDRshutdown(void) {
- return 0;
-}
-
-long CDRopen(void) {
- LoadConf();
-
-#ifndef _MACOSX
- if (IsCdHandleOpen())
- return 0; // it's already open
-#endif
-
- if (OpenCdHandle(CdromDev) == -1) { // if we can't open the cdrom we'll works as a null plugin
- fprintf(stderr, "CDR: Could not open %s\n", CdromDev);
- }
-
- fReadTrack = ReadTrackT[ReadMode];
- fGetBuffer = GetBufferT[ReadMode];
-
- if (ReadMode == THREADED) {
- cdcache = (CacheData *)malloc(CacheSize * sizeof(CacheData));
- if (cdcache == NULL) return -1;
- memset(cdcache, 0, CacheSize * sizeof(CacheData));
-
- found = 0;
- } else {
- cdbuffer = cr.buf + 12; /* skip sync data */
- }
-
- if (ReadMode == THREADED) {
- pthread_attr_t attr;
-
- pthread_mutex_init(&mut, NULL);
- pthread_cond_init(&cond, NULL);
- locked = 0;
-
- pthread_attr_init(&attr);
- pthread_create(&thread, &attr, CdrThread, NULL);
-
- cacheaddr = -1;
- } else thread = (pthread_t)-1;
-
- playing = 0;
- stopth = 0;
- initial_time = 0;
-
- return 0;
-}
-
-long CDRclose(void) {
- if (!IsCdHandleOpen()) return 0;
-
- if (playing) CDRstop();
-
- CloseCdHandle();
-
- if (thread != (pthread_t)-1) {
- if (locked == 0) {
- stopth = 1;
- while (locked == 0) usleep(5000);
- }
-
- stopth = 2;
- pthread_mutex_lock(&mut);
- pthread_cond_signal(&cond);
- pthread_mutex_unlock(&mut);
-
- pthread_join(thread, NULL);
- pthread_mutex_destroy(&mut);
- pthread_cond_destroy(&cond);
- }
-
- if (ReadMode == THREADED) {
- free(cdcache);
- }
-
- return 0;
-}
-
-// return Starting and Ending Track
-// buffer:
-// byte 0 - start track
-// byte 1 - end track
-long CDRgetTN(unsigned char *buffer) {
- long ret;
-
- if (!IsCdHandleOpen()) {
- buffer[0] = 1;
- buffer[1] = 1;
- return 0;
- }
-
- if (ReadMode == THREADED) pthread_mutex_lock(&mut);
- ret = GetTN(buffer);
- if (ReadMode == THREADED) pthread_mutex_unlock(&mut);
-
- return ret;
-}
-
-// return Track Time
-// buffer:
-// byte 0 - frame
-// byte 1 - second
-// byte 2 - minute
-long CDRgetTD(unsigned char track, unsigned char *buffer) {
- long ret;
-
- if (!IsCdHandleOpen()) {
- memset(buffer + 1, 0, 3);
- return 0;
- }
-
- if (ReadMode == THREADED) pthread_mutex_lock(&mut);
- ret = GetTD(track, buffer);
- if (ReadMode == THREADED) pthread_mutex_unlock(&mut);
-
- return ret;
-}
-
-// normal reading
-long ReadNormal() {
- if (ReadSector(&cr) == -1)
- return -1;
-
- return 0;
-}
-
-unsigned char* GetBNormal() {
- return cdbuffer;
-}
-
-// threaded reading (with cache)
-long ReadThreaded() {
- int addr = msf_to_lba(cr.msf.cdmsf_min0, cr.msf.cdmsf_sec0, cr.msf.cdmsf_frame0);
- int i;
-
- if (addr >= cacheaddr && addr < (cacheaddr + CacheSize) && cacheaddr != -1) {
- i = addr - cacheaddr;
- PRINTF("found %d\n", (addr - cacheaddr));
- cdbuffer = cdcache[i].cr.buf + 12;
- while (btoi(cdbuffer[0]) != cr.msf.cdmsf_min0 ||
- btoi(cdbuffer[1]) != cr.msf.cdmsf_sec0 ||
- btoi(cdbuffer[2]) != cr.msf.cdmsf_frame0) {
- if (locked == 1) {
- if (cdcache[i].ret == 0) break;
- return -1;
- }
- usleep(5000);
- }
- PRINTF("%x:%x:%x, %p, %p\n", cdbuffer[0], cdbuffer[1], cdbuffer[2], cdbuffer, cdcache);
- found = 1;
-
- return 0;
- } else found = 0;
-
- if (locked == 0) {
- stopth = 1;
- while (locked == 0) { usleep(5000); }
- stopth = 0;
- }
-
- // not found in cache
- locked = 0;
- pthread_mutex_lock(&mut);
- pthread_cond_signal(&cond);
- pthread_mutex_unlock(&mut);
-
- return 0;
-}
-
-unsigned char* GetBThreaded() {
- PRINTF("threadc %d\n", found);
-
- if (found == 1) return cdbuffer;
- cdbuffer = cdcache[0].cr.buf + 12;
- while (btoi(cdbuffer[0]) != cr.msf.cdmsf_min0 ||
- btoi(cdbuffer[1]) != cr.msf.cdmsf_sec0 ||
- btoi(cdbuffer[2]) != cr.msf.cdmsf_frame0) {
- if (locked == 1) return NULL;
- usleep(5000);
- }
- if (cdcache[0].ret == -1) return NULL;
-
- return cdbuffer;
-}
-
-void *CdrThread(void *arg) {
- unsigned char curTime[3];
- int i;
-
- for (;;) {
- locked = 1;
- pthread_mutex_lock(&mut);
- pthread_cond_wait(&cond, &mut);
-
- if (stopth == 2) pthread_exit(NULL);
- // refill the buffer
- cacheaddr = msf_to_lba(cr.msf.cdmsf_min0, cr.msf.cdmsf_sec0, cr.msf.cdmsf_frame0);
-
- memcpy(curTime, &cr.msf, 3);
-
- PRINTF("start thc %d:%d:%d\n", curTime[0], curTime[1], curTime[2]);
-
- for (i = 0; i < CacheSize; i++) {
- memcpy(&cdcache[i].cr.msf, curTime, 3);
- PRINTF("reading %d:%d:%d\n", curTime[0], curTime[1], curTime[2]);
- cdcache[i].ret = ReadSector(&cdcache[i].cr);
-
- PRINTF("readed %x:%x:%x\n", cdcache[i].cr.buf[12], cdcache[i].cr.buf[13], cdcache[i].cr.buf[14]);
- if (cdcache[i].ret == -1) break;
-
- curTime[2]++;
- if (curTime[2] == 75) {
- curTime[2] = 0;
- curTime[1]++;
- if (curTime[1] == 60) {
- curTime[1] = 0;
- curTime[0]++;
- }
- }
-
- if (stopth) break;
- }
-
- pthread_mutex_unlock(&mut);
- }
-
- return NULL;
-}
-
-// read track
-// time:
-// byte 0 - minute
-// byte 1 - second
-// byte 2 - frame
-// uses bcd format
-long CDRreadTrack(unsigned char *time) {
- if (!IsCdHandleOpen()) {
- memset(cr.buf, 0, DATA_SIZE);
- return 0;
- }
-
- PRINTF("CDRreadTrack %d:%d:%d\n", btoi(time[0]), btoi(time[1]), btoi(time[2]));
-
- if (UseSubQ) memcpy(lastTime, time, 3);
- subqread = 0;
-
- cr.msf.cdmsf_min0 = btoi(time[0]);
- cr.msf.cdmsf_sec0 = btoi(time[1]);
- cr.msf.cdmsf_frame0 = btoi(time[2]);
-
- return fReadTrack();
-}
-
-// return readed track
-unsigned char *CDRgetBuffer(void) {
- return fGetBuffer();
-}
-
-// plays cdda audio
-// sector:
-// byte 0 - minute
-// byte 1 - second
-// byte 2 - frame
-// does NOT uses bcd format
-long CDRplay(unsigned char *sector) {
- long ret;
-
- if (!IsCdHandleOpen())
- return 0;
-
- // If play was called with the same time as the previous call,
- // don't restart it. Of course, if play is called with a different
- // track, stop playing the current stream.
- if (playing) {
- if (msf_to_lba(sector[0], sector[1], sector[2]) == initial_time)
- return 0;
- else
- CDRstop();
- }
-
- initial_time = msf_to_lba(sector[0], sector[1], sector[2]);
-
- if (ReadMode == THREADED) pthread_mutex_lock(&mut);
- ret = PlayCDDA(sector);
- if (ReadMode == THREADED) pthread_mutex_unlock(&mut);
-
- if (ret == 0) {
- playing = 1;
- return 0;
- }
-
- return -1;
-}
-
-// stops cdda audio
-long CDRstop(void) {
- long ret;
-
- if (!IsCdHandleOpen())
- return 0;
-
- if (ReadMode == THREADED) pthread_mutex_lock(&mut);
- ret = StopCDDA();
- if (ReadMode == THREADED) pthread_mutex_unlock(&mut);
-
- if (ret == 0) {
- playing = 0;
- initial_time = 0;
-
- return 0;
- }
-
- return -1;
-}
-
-// reads cdr status
-// type:
-// 0x00 - unknown
-// 0x01 - data
-// 0x02 - audio
-// 0xff - no cdrom
-// status: (only shell open supported)
-// 0x00 - unknown
-// 0x01 - error
-// 0x04 - seek error
-// 0x10 - shell open
-// 0x20 - reading
-// 0x40 - seeking
-// 0x80 - playing
-// time:
-// byte 0 - minute
-// byte 1 - second
-// byte 2 - frame
-
-long CDRgetStatus(struct CdrStat *stat) {
- long ret;
-
- if (!IsCdHandleOpen())
- return -1;
-
- if (ReadMode == THREADED) pthread_mutex_lock(&mut);
- ret = GetStatus(playing, stat);
- if (ReadMode == THREADED) pthread_mutex_unlock(&mut);
-
- return ret;
-}
-
-unsigned char *CDRgetBufferSub(void) {
- static unsigned char *p = NULL;
-
- if (!UseSubQ) return NULL;
- if (subqread) return p;
-
- if (ReadMode == THREADED) pthread_mutex_lock(&mut);
- p = ReadSub(lastTime);
- if (ReadMode == THREADED) pthread_mutex_unlock(&mut);
-
- if (p != NULL) subqread = 1;
-
- return p;
-}
-
-// read CDDA sector into buffer
-long CDRreadCDDA(unsigned char m, unsigned char s, unsigned char f, unsigned char *buffer) {
- unsigned char msf[3] = {m, s, f};
- unsigned char *p;
-
- if (CDRreadTrack(msf) != 0) return -1;
-
- p = CDRgetBuffer();
- if (p == NULL) return -1;
-
- memcpy(buffer, p - 12, CD_FRAMESIZE_RAW); // copy from the beginning of the sector
- return 0;
-}
-
-// get Track End Time
-long CDRgetTE(unsigned char track, unsigned char *m, unsigned char *s, unsigned char *f) {
- long ret;
-
- if (!IsCdHandleOpen()) return -1;
-
- if (ReadMode == THREADED) pthread_mutex_lock(&mut);
- ret = GetTE(track, m, s, f);
- if (ReadMode == THREADED) pthread_mutex_unlock(&mut);
-
- return ret;
-}
-
-#ifndef _MACOSX
-
-void ExecCfg(char *arg) {
- char cfg[256];
- struct stat buf;
-
- strcpy(cfg, "./cfgDFCdrom");
- if (stat(cfg, &buf) != -1) {
- if (fork() == 0) {
- execl(cfg, "cfgDFCdrom", arg, NULL);
- exit(0);
- }
- return;
- }
-
- strcpy(cfg, "./cfg/DFCdrom");
- if (stat(cfg, &buf) != -1) {
- if (fork() == 0) {
- execl(cfg, "cfgDFCdrom", arg, NULL);
- exit(0);
- }
- return;
- }
-
- fprintf(stderr, "cfgDFCdrom file not found!\n");
-}
-
-long CDRconfigure() {
-#ifndef USE_NULL
- ExecCfg("configure");
-#endif
- return 0;
-}
-
-void CDRabout() {
- ExecCfg("about");
-}
-
-#endif
-
-long CDRtest(void) {
-#ifndef USE_NULL
- if (OpenCdHandle(CdromDev) == -1)
- return -1;
- CloseCdHandle();
-#endif
- return 0;
-}
-
-char *PSEgetLibName(void) {
- return _(LibName);
-}
-
-unsigned long PSEgetLibType(void) {
- return PSE_LT_CDR;
-}
-
-unsigned long PSEgetLibVersion(void) {
- return 1 << 16;
-}
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