int Timidity_Init(int rate, int format, int channels, int samples)
{
const char *env = getenv("TIMIDITY_CFG");
if (!env || read_config_file(env)<0) {
if (read_config_file(CONFIG_FILE)<0) {
if (read_config_file(CONFIG_FILE_ETC)<0) {
return(-1);
}
}
}
if (channels < 1 || channels == 3 || channels == 5 || channels > 6) return(-1);
num_ochannels = channels;
/* Set play mode parameters */
play_mode->rate = rate;
play_mode->encoding = 0;
if ( (format&0xFF) == 16 ) {
play_mode->encoding |= PE_16BIT;
}
if ( (format&0x8000) ) {
play_mode->encoding |= PE_SIGNED;
}
if ( channels == 1 ) {
play_mode->encoding |= PE_MONO;
}
switch (format) {
case AUDIO_S8:
s32tobuf = s32tos8;
break;
case AUDIO_U8:
s32tobuf = s32tou8;
break;
case AUDIO_S16LSB:
s32tobuf = s32tos16l;
break;
case AUDIO_S16MSB:
s32tobuf = s32tos16b;
break;
case AUDIO_U16LSB:
s32tobuf = s32tou16l;
break;
case AUDIO_U16MSB:
s32tobuf = s32tou16b;
break;
default:
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "Unsupported audio format");
return(-1);
}
AUDIO_BUFFER_SIZE = samples;
/* Allocate memory for mixing (WARNING: Memory leak!) */
resample_buffer = safe_malloc(AUDIO_BUFFER_SIZE*sizeof(resample_t)+100);
common_buffer = safe_malloc(AUDIO_BUFFER_SIZE*num_ochannels*sizeof(int32));
init_tables();
if (ctl->open(0, 0)) {
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "Couldn't open %s\n", ctl->id_name);
return(-1);
}
if (!control_ratio) {
control_ratio = play_mode->rate / CONTROLS_PER_SECOND;
if(control_ratio<1)
control_ratio=1;
else if (control_ratio > MAX_CONTROL_RATIO)
control_ratio=MAX_CONTROL_RATIO;
}
if (*def_instr_name)
set_default_instrument(def_instr_name);
return(0);
}
int Timidity_Init_Simple(int rate, int samples, sint32 encoding)
{
std::string configfile;
/* see if the pentagram config file specifies an alternate timidity.cfg */
#ifndef PENTAGRAM_IN_EXULT
SettingManager* settings = SettingManager::get_instance();
if (!settings->get("timiditycfg", configfile))
configfile = CONFIG_FILE;
#else
config->value("config/audio/midi/timiditycfg", configfile, CONFIG_FILE);
#endif
if (read_config_file(configfile.c_str())<0) {
return(-1);
}
/* Check to see if the encoding is 'valid' */
// Only 16 bit can be byte swapped
if ((encoding & PE_BYTESWAP) && !(encoding & PE_16BIT))
return(-1);
// u-Law can only be mono or stereo
if ((encoding & PE_ULAW) && (encoding & ~(PE_ULAW|PE_MONO)))
return(-1);
/* Set play mode parameters */
play_mode->rate = rate;
play_mode->encoding = encoding;
switch (play_mode->encoding) {
case 0:
case PE_MONO:
s32tobuf = s32tou8;
break;
case PE_SIGNED:
case PE_SIGNED|PE_MONO:
s32tobuf = s32tos8;
break;
case PE_ULAW:
case PE_ULAW|PE_MONO:
s32tobuf = s32toulaw;
break;
case PE_16BIT:
case PE_16BIT|PE_MONO:
s32tobuf = s32tou16;
break;
case PE_16BIT|PE_SIGNED:
case PE_16BIT|PE_SIGNED|PE_MONO:
s32tobuf = s32tos16;
break;
case PE_BYTESWAP|PE_16BIT:
case PE_BYTESWAP|PE_16BIT|PE_MONO:
s32tobuf = s32tou16x;
break;
case PE_BYTESWAP|PE_16BIT|PE_SIGNED:
case PE_BYTESWAP|PE_16BIT|PE_SIGNED|PE_MONO:
s32tobuf = s32tos16x;
break;
default:
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "Unsupported audio format");
return(-1);
}
AUDIO_BUFFER_SIZE = samples;
/* Allocate memory for mixing (WARNING: Memory leak!) */
resample_buffer = safe_Malloc<sample_t>(AUDIO_BUFFER_SIZE);
common_buffer = safe_Malloc<sint32>(AUDIO_BUFFER_SIZE*2);
init_tables();
if (ctl->open(0, 0)) {
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "Couldn't open %s\n", ctl->id_name);
return(-1);
}
if (!control_ratio) {
control_ratio = play_mode->rate / CONTROLS_PER_SECOND;
if(control_ratio<1)
control_ratio=1;
else if (control_ratio > MAX_CONTROL_RATIO)
control_ratio=MAX_CONTROL_RATIO;
}
if (*def_instr_name)
set_default_instrument(def_instr_name);
return(0);
}
static void do_song_load(MidIStream *stream, MidSongOptions *options, MidSong **out)
{
MidSong *song;
int i;
*out = NULL;
if (!stream) return;
if (options->rate < MIN_OUTPUT_RATE || options->rate > MAX_OUTPUT_RATE) {
DEBUG_MSG("Bad sample rate %d\n",options->rate);
return;
}
if (options->channels != 1 && options->channels != 2) {
DEBUG_MSG("Bad channels %u\n",options->channels);
return;
}
switch (options->format) {
case MID_AUDIO_S8:
case MID_AUDIO_U8:
case MID_AUDIO_S16LSB:
case MID_AUDIO_S16MSB:
case MID_AUDIO_U16LSB:
case MID_AUDIO_U16MSB: break; /* supported */
default:
DEBUG_MSG("Bad audio format 0x%x\n",options->format);
return;
}
/* Allocate memory for the song */
song = (MidSong *)timi_calloc(sizeof(MidSong));
if (!song) return;
for (i = 0; i < 128; i++) {
if (master_tonebank[i]) {
song->tonebank[i] = (MidToneBank *) timi_calloc(sizeof(MidToneBank));
if (!song->tonebank[i]) goto fail;
song->tonebank[i]->tone = master_tonebank[i]->tone;
}
if (master_drumset[i]) {
song->drumset[i] = (MidToneBank *) timi_calloc(sizeof(MidToneBank));
if (!song->drumset[i]) goto fail;
song->drumset[i]->tone = master_drumset[i]->tone;
}
}
song->amplification = DEFAULT_AMPLIFICATION;
song->voices = DEFAULT_VOICES;
song->drumchannels = DEFAULT_DRUMCHANNELS;
song->rate = options->rate;
song->encoding = 0;
if (options->format & 0x0010)
song->encoding |= PE_16BIT;
if (options->format & 0x8000)
song->encoding |= PE_SIGNED;
if (options->channels == 1)
song->encoding |= PE_MONO;
switch (options->format) {
case MID_AUDIO_S8:
song->write = timi_s32tos8;
break;
case MID_AUDIO_U8:
song->write = timi_s32tou8;
break;
case MID_AUDIO_S16LSB:
song->write = timi_s32tos16l;
break;
case MID_AUDIO_S16MSB:
song->write = timi_s32tos16b;
break;
case MID_AUDIO_U16LSB:
song->write = timi_s32tou16l;
break;
case MID_AUDIO_U16MSB:
song->write = timi_s32tou16b;
break;
}
song->buffer_size = options->buffer_size;
song->resample_buffer = (sample_t *) timi_calloc(options->buffer_size * sizeof(sample_t));
if (!song->resample_buffer) goto fail;
song->common_buffer = (sint32 *) timi_calloc(options->buffer_size * 2 * sizeof(sint32));
if (!song->common_buffer) goto fail;
song->bytes_per_sample = 2;
if (song->encoding & PE_16BIT)
song->bytes_per_sample *= 2;
if (song->encoding & PE_MONO)
song->bytes_per_sample /= 2;
song->control_ratio = options->rate / CONTROLS_PER_SECOND;
if (song->control_ratio < 1)
song->control_ratio = 1;
else if (song->control_ratio > MAX_CONTROL_RATIO)
song->control_ratio = MAX_CONTROL_RATIO;
song->lost_notes = 0;
song->cut_notes = 0;
song->events = read_midi_file(stream, song, &(song->groomed_event_count),
&song->samples);
/* Make sure everything is okay */
if (!song->events)
goto fail;
song->default_instrument = NULL;
song->default_program = DEFAULT_PROGRAM;
if (*def_instr_name)
set_default_instrument(song, def_instr_name);
load_missing_instruments(song);
if (! song->oom)
*out = song;
else {
fail: mid_song_free (song);
}
}
int Timidity_Init(int rate, int format, int channels, int samples, const char* config)
{
int ret;
ret = read_config_file(config);
if (ret < 0) {
return(ret);
}
/* Set play mode parameters */
play_mode->rate = rate;
play_mode->encoding = 0;
if ( (format&0xFF) == 16 ) {
play_mode->encoding |= PE_16BIT;
}
if ( (format&0x8000) ) {
play_mode->encoding |= PE_SIGNED;
}
if ( channels == 1 ) {
play_mode->encoding |= PE_MONO;
}
switch (format) {
case AUDIO_S8:
s32tobuf = s32tos8;
break;
case AUDIO_U8:
s32tobuf = s32tou8;
break;
case AUDIO_S16LSB:
s32tobuf = s32tos16l;
break;
case AUDIO_S16MSB:
s32tobuf = s32tos16b;
break;
case AUDIO_U16LSB:
s32tobuf = s32tou16l;
break;
case AUDIO_U16MSB:
s32tobuf = s32tou16b;
break;
default:
printf("Unsupported audio format");
return(-1);
}
AUDIO_BUFFER_SIZE = samples;
/* Allocate memory for mixing (WARNING: Memory leak!) */
resample_buffer = (sample_t*)safe_malloc(AUDIO_BUFFER_SIZE*sizeof(sample_t));
common_buffer = (int32_t*)safe_malloc(AUDIO_BUFFER_SIZE*2*sizeof(int32_t));
init_tables();
if (ctl->open(0, 0)) {
std::cout << "Couldn't open " << ctl->id_name << "\n";
return(-1);
}
if (!control_ratio) {
control_ratio = play_mode->rate / CONTROLS_PER_SECOND;
if(control_ratio<1)
control_ratio=1;
else if (control_ratio > MAX_CONTROL_RATIO)
control_ratio=MAX_CONTROL_RATIO;
}
if (!def_instr_name.empty())
set_default_instrument(const_cast<char*>(def_instr_name.c_str()));
return(0);
}