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blkdev_cdimage.cpp
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blkdev_cdimage.cpp
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/*
* UAE
*
* CD image file support
*
* - iso (2048/2352 block size)
* - cue/bin, cue/bin/wav, cue/bin/mp3, cue/bin/flac
* - ccd/img and ccd/img/sub
* - chd cd
*
* Copyright 2010-2013 Toni Wilen
*
*/
#include "sysconfig.h"
#include "sysdeps.h"
#include <sys/timeb.h>
#include "options.h"
#include "traps.h"
#include "blkdev.h"
#include "zfile.h"
#include "gui.h"
#include "fsdb.h"
#include "threaddep/thread.h"
#include "scsidev.h"
#include "mp3decoder.h"
#include "cda_play.h"
#include "memory.h"
#include "audio.h"
#include "uae.h"
#include "uae/cdrom.h"
#ifdef RETROPLATFORM
#include "rp.h"
#endif
#define FLAC__NO_DLL
#include "FLAC/stream_decoder.h"
#ifdef WITH_CHD
#include "archivers/chd/chdtypes.h"
#include "archivers/chd/chd.h"
#include "archivers/chd/chdcd.h"
#endif
#define scsi_log write_log
enum audenc { AUDENC_NONE, AUDENC_PCM, AUDENC_MP3, AUDENC_FLAC, ENC_CHD };
struct cdtoc
{
struct zfile *handle;
uae_s64 offset;
uae_u8 *data;
struct zfile *subhandle;
int suboffset;
uae_u8 *subdata;
uae_s64 filesize;
TCHAR *fname;
TCHAR *extrainfo;
int address;
uae_u8 adr, ctrl;
int track;
int size;
int skipsize; // bytes to skip after each block
int index1; // distance between index0 and index1
int pregap; // sectors of silence
int postgap; // sectors of silence
audenc enctype;
int writeoffset;
int subcode;
#ifdef WITH_CHD
const cdrom_track_info *chdtrack;
#endif
};
struct cdunit {
bool enabled;
bool open;
uae_u8 buffer[2352];
struct cdtoc toc[102];
int tracks;
uae_u64 cdsize;
int blocksize;
int cdda_play_state;
int cdda_play;
int cdda_paused;
int cdda_volume[2];
int cdda_scan;
int cd_last_pos;
int cdda_start, cdda_end;
play_subchannel_callback cdda_subfunc;
play_status_callback cdda_statusfunc;
int cdda_delay, cdda_delay_frames;
bool thread_active;
TCHAR imgname_in[MAX_DPATH];
TCHAR imgname_out[MAX_DPATH];
uae_sem_t sub_sem;
struct device_info di;
#ifdef WITH_CHD
chd_file *chd_f;
cdrom_file *chd_cdf;
#endif
volatile int cda_bufon[2];
cda_audio *cda;
struct cd_audio_state cas;
};
static struct cdunit cdunits[MAX_TOTAL_SCSI_DEVICES];
static int bus_open;
static volatile int cdimage_unpack_thread, cdimage_unpack_active;
static smp_comm_pipe unpack_pipe;
static uae_sem_t play_sem;
static struct cdunit *unitisopen (int unitnum)
{
struct cdunit *cdu = &cdunits[unitnum];
if (cdu->open)
return cdu;
return NULL;
}
static struct cdtoc *findtoc (struct cdunit *cdu, int *sectorp, bool data)
{
int i;
int sector;
if (*sectorp < 0)
return NULL;
sector = *sectorp;
for (i = 0; i <= cdu->tracks; i++) {
struct cdtoc *t = &cdu->toc[i];
if (t->address - t->index1 > sector) {
if (i == 0) {
*sectorp = 0;
return t;
}
t--;
sector -= t->address - t->index1;
if (!data && sector < t->pregap)
return NULL; // pregap silence
*sectorp = sector;
return t;
}
}
return NULL;
}
static int do_read (struct cdunit *cdu, struct cdtoc *t, uae_u8 *data, int sector, int offset, int size, bool audio)
{
if (t->enctype == ENC_CHD) {
#ifdef WITH_CHD
int type = CD_TRACK_MODE1_RAW;
uae_u8 tmpbuf[2352];
if (size > 2352)
return 0;
switch (size)
{
case 2352:
type = CD_TRACK_MODE1_RAW;
offset = 0;
break;
case 2336:
type = CD_TRACK_MODE2;
offset = 0;
break;
case 2048:
type = CD_TRACK_MODE1;
offset = 0;
break;
}
if (audio && size == 2352)
type = CD_TRACK_AUDIO;
if (cdrom_read_data(cdu->chd_cdf, sector + (UINT32)t->offset, tmpbuf, type, false)) {
memcpy(data, tmpbuf + offset, size);
return 1;
}
return 0;
#endif
} else if (t->handle) {
int ssize = t->size + t->skipsize;
zfile_fseek (t->handle, t->offset + (uae_u64)sector * ssize + offset, SEEK_SET);
return zfile_fread (data, 1, size, t->handle) == size;
}
return 0;
}
// WOHOO, library that supports virtual file access functions. Perfect!
static void flac_metadata_callback (const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
{
struct cdtoc *t = (struct cdtoc*)client_data;
if (t->data)
return;
if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO) {
t->filesize = metadata->data.stream_info.total_samples * (metadata->data.stream_info.bits_per_sample / 8) * metadata->data.stream_info.channels;
} else if (metadata->type == FLAC__METADATA_TYPE_CUESHEET) {
write_log("!");
}
}
static void flac_error_callback (const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
{
return;
}
static FLAC__StreamDecoderWriteStatus flac_write_callback (const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
{
struct cdtoc *t = (struct cdtoc*)client_data;
uae_u16 *p = (uae_u16*)(t->data + t->writeoffset);
int size = 4;
for (int i = 0; i < frame->header.blocksize && t->writeoffset < t->filesize - size; i++, t->writeoffset += size) {
*p++ = (FLAC__int16)buffer[0][i];
*p++ = (FLAC__int16)buffer[1][i];
}
return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
}
static FLAC__StreamDecoderReadStatus file_read_callback (const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
{
struct cdtoc *t = (struct cdtoc*)client_data;
if (zfile_ftell (t->handle) >= zfile_size (t->handle))
return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
return zfile_fread (buffer, *bytes, 1, t->handle) ? FLAC__STREAM_DECODER_READ_STATUS_CONTINUE : FLAC__STREAM_DECODER_READ_STATUS_ABORT;
}
static FLAC__StreamDecoderSeekStatus file_seek_callback (const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data)
{
struct cdtoc *t = (struct cdtoc*)client_data;
zfile_fseek (t->handle, absolute_byte_offset, SEEK_SET);
return FLAC__STREAM_DECODER_SEEK_STATUS_OK;
}
static FLAC__StreamDecoderTellStatus file_tell_callback (const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
{
struct cdtoc *t = (struct cdtoc*)client_data;
*absolute_byte_offset = zfile_ftell (t->handle);
return FLAC__STREAM_DECODER_TELL_STATUS_OK;
}
static FLAC__StreamDecoderLengthStatus file_len_callback (const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data)
{
struct cdtoc *t = (struct cdtoc*)client_data;
*stream_length = zfile_size (t->handle);
return FLAC__STREAM_DECODER_LENGTH_STATUS_OK;
}
static FLAC__bool file_eof_callback (const FLAC__StreamDecoder *decoder, void *client_data)
{
struct cdtoc *t = (struct cdtoc*)client_data;
return zfile_ftell (t->handle) >= zfile_size (t->handle);
}
static void flac_get_size (struct cdtoc *t)
{
FLAC__StreamDecoder *decoder = FLAC__stream_decoder_new ();
if (decoder) {
FLAC__stream_decoder_set_md5_checking (decoder, false);
FLAC__stream_decoder_set_metadata_respond(decoder, FLAC__METADATA_TYPE_CUESHEET);
int init_status = FLAC__stream_decoder_init_stream (decoder,
&file_read_callback, &file_seek_callback, &file_tell_callback,
&file_len_callback, &file_eof_callback,
&flac_write_callback, &flac_metadata_callback, &flac_error_callback, t);
FLAC__stream_decoder_process_until_end_of_metadata (decoder);
FLAC__stream_decoder_delete (decoder);
}
}
static uae_u8 *flac_get_data (struct cdtoc *t)
{
write_log (_T("FLAC: unpacking '%s'..\n"), zfile_getname (t->handle));
t->writeoffset = 0;
FLAC__StreamDecoder *decoder = FLAC__stream_decoder_new ();
if (decoder) {
FLAC__stream_decoder_set_md5_checking (decoder, false);
int init_status = FLAC__stream_decoder_init_stream (decoder,
&file_read_callback, &file_seek_callback, &file_tell_callback,
&file_len_callback, &file_eof_callback,
&flac_write_callback, &flac_metadata_callback, &flac_error_callback, t);
FLAC__stream_decoder_process_until_end_of_stream (decoder);
FLAC__stream_decoder_delete (decoder);
write_log (_T("FLAC: %s unpacked\n"), zfile_getname (t->handle));
}
return t->data;
}
void sub_to_interleaved (const uae_u8 *s, uae_u8 *d)
{
for (int i = 0; i < 8 * SUB_ENTRY_SIZE; i ++) {
int dmask = 0x80;
int smask = 1 << (7 - (i & 7));
(*d) = 0;
for (int j = 0; j < 8; j++) {
(*d) |= (s[(i / 8) + j * SUB_ENTRY_SIZE] & smask) ? dmask : 0;
dmask >>= 1;
}
d++;
}
}
void sub_to_deinterleaved (const uae_u8 *s, uae_u8 *d)
{
for (int i = 0; i < 8 * SUB_ENTRY_SIZE; i ++) {
int dmask = 0x80;
int smask = 1 << (7 - (i / SUB_ENTRY_SIZE));
(*d) = 0;
for (int j = 0; j < 8; j++) {
(*d) |= (s[(i % SUB_ENTRY_SIZE) * 8 + j] & smask) ? dmask : 0;
dmask >>= 1;
}
d++;
}
}
static int getsub_deinterleaved (uae_u8 *dst, struct cdunit *cdu, struct cdtoc *t, int sector)
{
int ret = 0;
uae_sem_wait (&cdu->sub_sem);
if (t->subcode) {
if (t->enctype == ENC_CHD) {
#ifdef WITH_CHD
const cdrom_track_info *cti = t->chdtrack;
if (cdrom_read_subcode(cdu->chd_cdf, sector, dst, false))
ret = t->subcode;
#endif
} else if (t->subhandle) {
int offset = 0;
int totalsize = SUB_CHANNEL_SIZE;
if (t->skipsize) {
totalsize += t->size;
offset = t->size;
}
zfile_fseek (t->subhandle, (uae_u64)sector * totalsize + t->suboffset + offset, SEEK_SET);
if (zfile_fread (dst, SUB_CHANNEL_SIZE, 1, t->subhandle) > 0)
ret = t->subcode;
} else {
memcpy (dst, t->subdata + sector * SUB_CHANNEL_SIZE + t->suboffset, SUB_CHANNEL_SIZE);
ret = t->subcode;
}
}
if (!ret) {
memset (dst, 0, SUB_CHANNEL_SIZE);
// regenerate Q-subchannel
uae_u8 *s = dst + SUB_ENTRY_SIZE;
s[0] = (t->ctrl << 4) | (t->adr << 0);
s[1] = tobcd(addrdiff(t, &cdu->toc[0]) + 1);
s[2] = tobcd(1);
int msf = lsn2msf(sector);
tolongbcd(s + 7, msf);
msf = lsn2msf(addrdiff(sector, t->address) - 150);
tolongbcd(s + 3, msf);
ret = 2;
}
if (ret == 1) {
uae_u8 tmp[SUB_CHANNEL_SIZE];
memcpy (tmp, dst, SUB_CHANNEL_SIZE);
sub_to_deinterleaved (tmp, dst);
ret = 2;
}
#if 0
uae_u8 *s = dst + SUB_ENTRY_SIZE;
write_log(_T("CTRLADR:%02X TRK=%02X IDX=%02X MSF=%02X:%02X:%02X %02X:%02X:%02X\n"),
s[0], s[1], s[2],
s[3], s[4], s[5],
s[7], s[8], s[9]);
#endif
uae_sem_post (&cdu->sub_sem);
return ret;
}
static void dosub (struct cdunit *cdu, uae_u8 *subbuf)
{
uae_u8 subbuf2[SUB_CHANNEL_SIZE];
if (!cdu->cdda_subfunc)
return;
if (!subbuf) {
memset (subbuf2, 0, sizeof subbuf2);
cdu->cdda_subfunc (subbuf2, 1);
return;
}
sub_to_interleaved (subbuf, subbuf2);
cdu->cdda_subfunc (subbuf2, 1);
}
static int setstate (struct cdunit *cdu, int state, int playpos)
{
cdu->cdda_play_state = state;
if (cdu->cdda_statusfunc)
return cdu->cdda_statusfunc (cdu->cdda_play_state, playpos);
return 0;
}
static void cdda_unpack_func (void *v)
{
cdimage_unpack_thread = 1;
mp3decoder *mp3dec = NULL;
for (;;) {
uae_u32 cduidx = read_comm_pipe_u32_blocking (&unpack_pipe);
if (cdimage_unpack_thread == 0)
break;
uae_u32 tocidx = read_comm_pipe_u32_blocking (&unpack_pipe);
struct cdunit *cdu = &cdunits[cduidx];
struct cdtoc *t = &cdu->toc[tocidx];
if (t->handle) {
// force unpack if handle points to delayed zipped file
uae_s64 pos = zfile_ftell (t->handle);
zfile_fseek (t->handle, -1, SEEK_END);
uae_u8 b;
zfile_fread (&b, 1, 1, t->handle);
zfile_fseek (t->handle, pos, SEEK_SET);
if (!t->data && (t->enctype == AUDENC_MP3 || t->enctype == AUDENC_FLAC)) {
t->data = xcalloc (uae_u8, (int)t->filesize + 2352);
cdimage_unpack_active = 1;
if (t->data) {
if (t->enctype == AUDENC_MP3) {
if (!mp3dec) {
try {
mp3dec = new mp3decoder();
} catch (exception) { };
}
if (mp3dec)
t->data = mp3dec->get (t->handle, t->data, (int)t->filesize);
} else if (t->enctype == AUDENC_FLAC) {
flac_get_data (t);
}
}
}
}
cdimage_unpack_active = 2;
}
delete mp3dec;
cdimage_unpack_thread = -1;
}
static void audio_unpack(struct cdunit *cdu, struct cdtoc *t)
{
// do this even if audio is not compressed, t->handle also could be
// compressed and we want to unpack it in background too
while (cdimage_unpack_active == 1)
sleep_millis(10);
cdimage_unpack_active = 0;
write_comm_pipe_u32(&unpack_pipe, addrdiff(cdu, &cdunits[0]), 0);
write_comm_pipe_u32(&unpack_pipe, addrdiff(t, &cdu->toc[0]), 1);
while (cdimage_unpack_active == 0)
sleep_millis(10);
}
static void next_cd_audio_buffer_callback(int bufnum, void *params)
{
struct cdunit *cdu = (struct cdunit*)params;
uae_sem_wait(&play_sem);
if (bufnum >= 0) {
cdu->cda_bufon[bufnum] = 0;
bufnum = 1 - bufnum;
if (cdu->cda_bufon[bufnum])
audio_cda_new_buffer(&cdu->cas, (uae_s16*)cdu->cda->buffers[bufnum], CDDA_BUFFERS * 2352 / 4, bufnum, next_cd_audio_buffer_callback, cdu);
else
bufnum = -1;
}
if (bufnum < 0) {
audio_cda_new_buffer(&cdu->cas, NULL, -1, 0, NULL, cdu);
}
uae_sem_post(&play_sem);
}
static bool cdda_play_func2 (struct cdunit *cdu, int *outpos)
{
int cdda_pos = cdu->cdda_start;
int bufnum;
int oldplay;
int idleframes = 0;
int silentframes = 0;
bool foundsub;
int oldtrack = -1;
bool restart = false;
bool first = true;
cdu->thread_active = true;
memset(&cdu->cas, 0, sizeof(struct cd_audio_state));
while (cdu->cdda_play == 0)
sleep_millis(10);
oldplay = -1;
cdu->cda_bufon[0] = cdu->cda_bufon[1] = 0;
bufnum = 0;
cdu->cda = new cda_audio (CDDA_BUFFERS, 2352, 44100);
while (cdu->cdda_play > 0) {
if (oldplay != cdu->cdda_play) {
struct cdtoc *t;
int sector, diff;
struct _timeb tb1, tb2;
idleframes = 0;
silentframes = 0;
foundsub = false;
_ftime (&tb1);
cdda_pos = cdu->cdda_start;
oldplay = cdu->cdda_play;
sector = cdu->cd_last_pos = cdda_pos;
t = findtoc (cdu, §or, false);
if (!t) {
sector = cdu->cd_last_pos = cdda_pos + 2 * 75;
t = findtoc (cdu, §or, false);
if (!t) {
write_log (_T("IMAGE CDDA: illegal sector number %d\n"), cdu->cdda_start);
setstate (cdu, AUDIO_STATUS_PLAY_ERROR, -1);
} else {
audio_unpack (cdu, t);
}
} else {
write_log (_T("IMAGE CDDA: playing from %d to %d, track %d ('%s', offset %lld, secoffset %d (%d))\n"),
cdu->cdda_start, cdu->cdda_end, t->track, t->fname, t->offset, sector, t->index1);
oldtrack = t->track;
audio_unpack (cdu, t);
}
idleframes = cdu->cdda_delay_frames;
while (cdu->cdda_paused && cdu->cdda_play > 0) {
sleep_millis(10);
idleframes = -1;
}
if (cdu->cdda_scan == 0) {
// find possible P-subchannel=1 and fudge starting point so that
// buggy CD32/CDTV software CD+G handling does not miss any frames
bool seenindex = false;
for (sector = cdda_pos - 200; sector < cdda_pos; sector++) {
int sec = sector;
t = findtoc (cdu, &sec, false);
if (t) {
uae_u8 subbuf[SUB_CHANNEL_SIZE];
getsub_deinterleaved (subbuf, cdu, t, sector);
if (seenindex) {
for (int i = 2 * SUB_ENTRY_SIZE; i < SUB_CHANNEL_SIZE; i++) {
if (subbuf[i]) { // non-zero R-W subchannels
int diff = cdda_pos - sector + 2;
write_log (_T("-> CD+G start pos fudge -> %d (%d)\n"), sector, -diff);
idleframes -= diff;
cdda_pos = sector;
break;
}
}
} else if (subbuf[0] == 0xff) { // P == 1?
seenindex = true;
}
}
}
}
cdda_pos -= idleframes;
if (*outpos < 0) {
_ftime (&tb2);
diff = (int)((tb2.time * (uae_s64)1000 + tb2.millitm) - (tb1.time * (uae_s64)1000 + tb1.millitm));
diff -= cdu->cdda_delay;
if (idleframes >= 0 && diff < 0 && cdu->cdda_play > 0)
sleep_millis(-diff);
setstate (cdu, AUDIO_STATUS_IN_PROGRESS, cdda_pos);
}
sector = cdda_pos;
struct cdtoc *t1 = findtoc (cdu, §or, false);
int tsector = cdda_pos + 2 * 75;
struct cdtoc *t2 = findtoc (cdu, &tsector, false);
if (t1 != t2) {
for (sector = cdda_pos; sector < cdda_pos + 2 * 75; sector++) {
int sec = sector;
t = findtoc (cdu, &sec, false);
if (t == t2)
break;
silentframes++;
}
}
}
while (cdu->cda_bufon[bufnum] && cdu->cdda_play > 0) {
if (cd_audio_mode_changed) {
restart = true;
goto end;
}
sleep_millis(10);
}
cdu->cda_bufon[bufnum] = 0;
if (cdu->cdda_play <= 0)
goto end;
if (idleframes <= 0 && cdda_pos >= cdu->cdda_start && !isaudiotrack (&cdu->di.toc, cdda_pos)) {
setstate (cdu, AUDIO_STATUS_PLAY_ERROR, -1);
write_log (_T("IMAGE CDDA: attempted to play data track %d\n"), cdda_pos);
goto end; // data track?
}
if ((cdda_pos < cdu->cdda_end || cdu->cdda_end == 0xffffffff) && !cdu->cdda_paused && cdu->cdda_play > 0) {
struct cdtoc *t;
int sector, cnt;
int dofinish = 0;
gui_flicker_led (LED_CD, cdu->di.unitnum - 1, LED_CD_AUDIO);
setstate(cdu, AUDIO_STATUS_IN_PROGRESS, cdda_pos);
memset (cdu->cda->buffers[bufnum], 0, CDDA_BUFFERS * 2352);
for (cnt = 0; cnt < CDDA_BUFFERS && cdu->cdda_play > 0; cnt++) {
uae_u8 *dst = cdu->cda->buffers[bufnum] + cnt * 2352;
uae_u8 subbuf[SUB_CHANNEL_SIZE];
sector = cdda_pos;
memset (subbuf, 0, SUB_CHANNEL_SIZE);
t = findtoc (cdu, §or, false);
if (t) {
if (t->track != oldtrack) {
oldtrack = t->track;
write_log (_T("IMAGE CDDA: track %d ('%s', offset %lld, secoffset %d (%d))\n"),
t->track, t->fname, t->offset, sector, t->index1);
audio_unpack (cdu, t);
}
if (!(t->ctrl & 4)) {
if (t->enctype == ENC_CHD) {
#ifdef WITH_CHD
do_read (cdu, t, dst, sector, 0, t->size, true);
for (int i = 0; i < 2352; i+=2) {
uae_u8 p;
p = dst[i + 0];
dst[i + 0] = dst[i + 1];
dst[i +1] = p;
}
#endif
} else if (t->handle) {
int totalsize = t->size + t->skipsize;
int offset = (int)t->offset;
if (offset >= 0) {
if ((t->enctype == AUDENC_MP3 || t->enctype == AUDENC_FLAC) && t->data) {
if (t->filesize >= sector * totalsize + offset + t->size)
memcpy (dst, t->data + sector * totalsize + offset, t->size);
} else if (t->enctype == AUDENC_PCM) {
if (sector * totalsize + offset + totalsize < t->filesize) {
zfile_fseek (t->handle, (uae_u64)sector * totalsize + offset, SEEK_SET);
zfile_fread (dst, t->size, 1, t->handle);
}
}
}
}
}
getsub_deinterleaved (subbuf, cdu, t, cdda_pos);
}
if (idleframes > 0 || silentframes > 0) {
if (idleframes > 0) {
idleframes--;
memset (subbuf, 0, SUB_CHANNEL_SIZE);
}
if (silentframes > 0)
silentframes--;
memset (dst, 0, 2352);
}
if (cdda_pos < cdu->cdda_start && cdu->cdda_scan == 0)
memset (dst, 0, 2352);
dosub (cdu, subbuf);
if (cdu->cdda_scan) {
cdda_pos += cdu->cdda_scan;
if (cdda_pos < 0)
cdda_pos = 0;
} else {
cdda_pos++;
}
if (cdda_pos - CDDA_BUFFERS < cdu->cdda_end && cdda_pos >= cdu->cdda_end)
dofinish = 1;
}
if (idleframes <= 0)
cdu->cd_last_pos = cdda_pos;
if (cdu->cda_bufon[0] == 0 && cdu->cda_bufon[1] == 0) {
cdu->cda_bufon[bufnum] = 1;
next_cd_audio_buffer_callback(1 - bufnum, cdu);
}
audio_cda_volume(&cdu->cas, cdu->cdda_volume[0], cdu->cdda_volume[1]);
cdu->cda_bufon[bufnum] = 1;
if (first) {
first = false;
setstate(cdu, -3, -1);
}
if (dofinish) {
cdda_pos = cdu->cdda_end + 1;
if (cdu->cdda_play >= 0)
setstate (cdu, AUDIO_STATUS_PLAY_COMPLETE, cdda_pos);
cdu->cdda_play = -1;
}
}
if (cdu->cda_bufon[0] == 0 && cdu->cda_bufon[1] == 0) {
while (cdu->cdda_paused && cdu->cdda_play == oldplay)
sleep_millis(10);
}
if (cd_audio_mode_changed) {
restart = true;
goto end;
}
bufnum = 1 - bufnum;
}
end:
*outpos = cdda_pos;
next_cd_audio_buffer_callback(-1, cdu);
if (restart)
audio_cda_new_buffer(&cdu->cas, NULL, -1, -1, NULL, NULL);
while (cdimage_unpack_active == 1)
sleep_millis(10);
delete cdu->cda;
write_log (_T("IMAGE CDDA: thread killed (%s)\n"), restart ? _T("restart") : _T("play end"));
cd_audio_mode_changed = false;
return restart;
}
static void cdda_play_func (void *v)
{
int outpos = -1;
struct cdunit *cdu = (struct cdunit*)v;
cd_audio_mode_changed = false;
for (;;) {
if (!cdda_play_func2(cdu, &outpos)) {
cdu->cdda_play = 0;
break;
}
cdu->cdda_start = outpos;
if (cdu->cdda_start + 150 >= cdu->cdda_end) {
if (cdu->cdda_play >= 0)
setstate (cdu, AUDIO_STATUS_PLAY_COMPLETE, cdu->cdda_end + 1);
cdu->cdda_play = -1;
break;
}
cdu->cdda_play = 1;
}
cdu->thread_active = false;
}
static void cdda_stop (struct cdunit *cdu)
{
if (cdu->cdda_play != 0) {
cdu->cdda_play = -1;
while (cdu->cdda_play && cdu->thread_active) {
sleep_millis(10);
}
cdu->cdda_play = 0;
}
cdu->cdda_paused = 0;
cdu->cdda_play_state = 0;
}
static int command_pause (int unitnum, int paused)
{
struct cdunit *cdu = unitisopen (unitnum);
if (!cdu)
return -1;
int old = cdu->cdda_paused;
if ((paused && cdu->cdda_play) || !paused)
cdu->cdda_paused = paused;
return old;
}
static int command_stop (int unitnum)
{
struct cdunit *cdu = unitisopen (unitnum);
if (!cdu)
return 0;
cdda_stop (cdu);
return 1;
}
static int command_play (int unitnum, int startlsn, int endlsn, int scan, play_status_callback statusfunc, play_subchannel_callback subfunc)
{
struct cdunit *cdu = unitisopen (unitnum);
if (!cdu)
return 0;
if (cdu->cdda_play) {
cdu->cdda_play = -1;
while (cdu->thread_active)
Sleep (10);
cdu->cdda_play = 0;
}
cdu->cd_last_pos = startlsn;
cdu->cdda_start = startlsn;
cdu->cdda_end = endlsn;
cdu->cdda_subfunc = subfunc;
cdu->cdda_statusfunc = statusfunc;
cdu->cdda_scan = scan > 0 ? 10 : (scan < 0 ? 10 : 0);
cdu->cdda_delay = setstate (cdu, -1, -1);
cdu->cdda_delay_frames = setstate (cdu, -2, -1);
setstate (cdu, cdu->cdda_delay > 0 || cdu->cdda_delay_frames ? AUDIO_STATUS_NOT_SUPPORTED : AUDIO_STATUS_IN_PROGRESS, -1);
if (!isaudiotrack (&cdu->di.toc, startlsn)) {
setstate (cdu, AUDIO_STATUS_PLAY_ERROR, -1);
return 0;
}
if (!cdu->thread_active) {
uae_start_thread (_T("cdimage_cdda_play"), cdda_play_func, cdu, NULL);
while (!cdu->thread_active)
Sleep (10);
}
cdu->cdda_play++;
return 1;
}
static int command_qcode (int unitnum, uae_u8 *buf, int sector, bool all)
{
struct cdunit *cdu = unitisopen (unitnum);
if (!cdu)
return 0;
uae_u8 subbuf[SUB_CHANNEL_SIZE];
uae_u8 *p;
int trk;
int pos;
int status;
memset (buf, 0, SUBQ_SIZE);
p = buf;
status = cdu->cdda_play_state;
if (cdu->cdda_play > 0 && cdu->cdda_paused)
status = AUDIO_STATUS_PAUSED;
if (sector < 0)
pos = cdu->cd_last_pos;
else
pos = sector;
p[1] = status;
p[3] = 12;
p = buf + 4;
struct cdtoc *td = NULL;
for (trk = 0; trk <= cdu->tracks; trk++) {
td = &cdu->toc[trk];
if (pos < td->address) {
if (trk > 0)
td--;
break;
}
if (pos >= td->address && pos < td[1].address)
break;
}
if (!td)
return 0;
getsub_deinterleaved (subbuf, cdu, td, pos);
if (all) {
memcpy(buf, subbuf, SUB_CHANNEL_SIZE);
} else {
memcpy (p, subbuf + 12, 12);
}
if (cdu->cdda_play_state == AUDIO_STATUS_PLAY_COMPLETE || cdu->cdda_play_state == AUDIO_STATUS_PLAY_ERROR)
cdu->cdda_play_state = AUDIO_STATUS_NO_STATUS;
return 1;
}
static uae_u32 command_volume (int unitnum, uae_u16 volume_left, uae_u16 volume_right)
{
struct cdunit *cdu = unitisopen (unitnum);
if (!cdu)
return -1;
uae_u32 old = (cdu->cdda_volume[1] << 16) | (cdu->cdda_volume[0] << 0);
cdu->cdda_volume[0] = volume_left;
cdu->cdda_volume[1] = volume_right;
return old;
}
extern void encode_l2 (uae_u8 *p, int address);
static int command_rawread (int unitnum, uae_u8 *data, int sector, int size, int sectorsize, uae_u32 extra)
{
int ret = 0;
struct cdunit *cdu = unitisopen (unitnum);
if (!cdu)
return 0;
int asector = sector;
struct cdtoc *t = findtoc (cdu, §or, true);
int ssize;
if (!t)
goto end;
ssize = t->size + t->skipsize;
cdda_stop (cdu);
if (sectorsize > 0) {
if ((sectorsize == 2352 || sectorsize == 2368 || sectorsize == 2448) && t->size == 2336) {
// 2336 -> 2352
while (size-- > 0) {
int address = asector + 150;
if (isaudiotrack(&cdu->di.toc, sector)) {
do_read(cdu, t, data, sector, 0, t->size, true);
} else {
data[0] = 0x00;
memset(data + 1, 0xff, 11);
data[12] = tobcd((uae_u8)(address / (60 * 75)));
data[13] = tobcd((uae_u8)((address / 75) % 60));
data[14] = tobcd((uae_u8)(address % 75));
data[15] = 2; /* MODE2 */
do_read(cdu, t, data + 16, sector, 0, t->size, false);
}
sector++;
asector++;
data += sectorsize;
ret += sectorsize;
if (sectorsize == 2448) {
// all subs
getsub_deinterleaved(data - SUB_CHANNEL_SIZE, cdu, t, sector);
} else if (sectorsize == 2368) {
// sub q only
uae_u8 subs[SUB_CHANNEL_SIZE];
getsub_deinterleaved(subs, cdu, t, sector);
memcpy(data - SUBQ_SIZE, subs + SUBQ_SIZE, SUBQ_SIZE);
}
}
} else if ((sectorsize == 2352 || sectorsize == 2368 || sectorsize == 2448) && t->size == 2048) {
// 2048 -> 2352
while (size-- > 0) {
memset (data, 0, 16);
do_read (cdu, t, data + 16, sector, 0, 2048, false);
encode_l2 (data, sector + 150);
sector++;
asector++;
data += sectorsize;
ret += sectorsize;
if (sectorsize == 2448) {
// all subs
getsub_deinterleaved(data - SUB_CHANNEL_SIZE, cdu, t, sector);
} else if (sectorsize == 2368) {
// sub q only
uae_u8 subs[SUB_CHANNEL_SIZE];
getsub_deinterleaved(subs, cdu, t, sector);
memcpy(data - SUBQ_SIZE, subs + SUBQ_SIZE, SUBQ_SIZE);
}
}
} else if (sectorsize == 2048 && t->size == 2352) {
// 2352 -> 2048
while (size-- > 0) {
uae_u8 b = 0;
do_read (cdu, t, &b, sector, 15, 1, false);
do_read (cdu, t, data, sector, b == 2 ? 24 : 16, sectorsize, false);
sector++;
asector++;
data += sectorsize;
ret += sectorsize;
}
} else if (sectorsize == 2336 && t->size == 2352) {
// 2352 -> 2336
while (size-- > 0) {
uae_u8 b = 0;
do_read (cdu, t, &b, sector, 15, 1, false);
if (b != 2 && b != 0) // MODE0 or MODE2 only allowed
return 0;
do_read (cdu, t, data, sector, 16, sectorsize, false);
sector++;
asector++;
data += sectorsize;
ret += sectorsize;
}
} else if (sectorsize == t->size) {
// no change
while (size -- > 0) {
if (sectorsize == 2352 && isaudiotrack(&cdu->di.toc, sector)) {
do_read(cdu, t, data, sector, 0, sectorsize, true);
} else {
do_read(cdu, t, data, sector, 0, sectorsize, false);
}
sector++;
asector++;
data += sectorsize;
ret++;
}
} else if (sectorsize == 96) {
// subchannels only
while (size-- > 0) {
getsub_deinterleaved(data, cdu, t, sector);
data += SUB_CHANNEL_SIZE;
ret += SUB_CHANNEL_SIZE;
sector++;
}
}