static void vis_oscilloscope(void)
{
if (_vis_virgin) {
vgamem_ovl_alloc(&vis_overlay);
_vis_virgin = 0;
}
_draw_vis_box();
song_lock_audio();
if (status.vis_style == VIS_MONOSCOPE) {
if (audio_output_bits == 16) {
draw_sample_data_rect_16(&vis_overlay,audio_buffer,
audio_buffer_samples,
audio_output_channels,1);
} else {
draw_sample_data_rect_8(&vis_overlay,(void*)audio_buffer,
audio_buffer_samples,
audio_output_channels,1);
}
} else if (audio_output_bits == 16) {
draw_sample_data_rect_16(&vis_overlay,audio_buffer,audio_buffer_samples,
audio_output_channels,audio_output_channels);
} else {
draw_sample_data_rect_8(&vis_overlay,(void *)audio_buffer,audio_buffer_samples,
audio_output_channels,audio_output_channels);
}
song_unlock_audio();
}
static void vis_fft(void)
{
int i, y;
/*this is the size of vis_overlay.width*/
unsigned char outfft[120];
if (_vis_virgin) {
vgamem_ovl_alloc(&vis_overlay);
_vis_virgin = 0;
}
_draw_vis_box();
song_lock_audio();
vgamem_ovl_clear(&vis_overlay,0);
_get_columns_from_fft(outfft,current_fft_data);
for (i = 0; i < 120; i++) {
y = outfft[i];
/*reduce range */
y >>= 3;
if (y > 15) y = 15;
if (y > 0) {
vgamem_ovl_drawline(&vis_overlay,i,15-y,i,15,5);
}
}
vgamem_ovl_apply(&vis_overlay);
song_unlock_audio();
}
void sample_toggle_quality(song_sample_t * sample, int convert_data)
{
signed char *odata;
song_lock_audio();
// stop playing the sample because we'll be reallocating and/or changing lengths
csf_stop_sample(current_song, sample);
sample->flags ^= CHN_16BIT;
status.flags |= SONG_NEEDS_SAVE;
if (convert_data) {
odata = csf_allocate_sample(sample->length
* ((sample->flags & CHN_16BIT) ? 2 : 1)
* ((sample->flags & CHN_STEREO) ? 2 : 1));
if (sample->flags & CHN_16BIT) {
_quality_convert_8to16(sample->data, (signed short *) odata,
sample->length * ((sample->flags & CHN_STEREO) ? 2 : 1));
} else {
_quality_convert_16to8((signed short *) sample->data, odata,
sample->length * ((sample->flags & CHN_STEREO) ? 2 : 1));
}
csf_free_sample(sample->data);
sample->data = odata;
} else {
if (sample->flags & CHN_16BIT) {
sample->length >>= 1;
sample->loop_start >>= 1;
sample->loop_end >>= 1;
sample->sustain_start >>= 1;
sample->sustain_end >>= 1;
} else {
void sample_reverse(song_sample_t * sample)
{
unsigned long tmp;
song_lock_audio();
status.flags |= SONG_NEEDS_SAVE;
if (sample->flags & CHN_STEREO) {
if (sample->flags & CHN_16BIT)
_reverse_32((signed int *)sample->data, sample->length);
else
_reverse_16((signed short *) sample->data, sample->length);
} else {
if (sample->flags & CHN_16BIT)
_reverse_16((signed short *) sample->data, sample->length);
else
_reverse_8(sample->data, sample->length);
}
tmp = sample->length - sample->loop_start;
sample->loop_start = sample->length - sample->loop_end;
sample->loop_end = tmp;
tmp = sample->length - sample->sustain_start;
sample->sustain_start = sample->length - sample->sustain_end;
sample->sustain_end = tmp;
song_unlock_audio();
}
void sample_sign_convert(song_sample_t * sample)
{
song_lock_audio();
status.flags |= SONG_NEEDS_SAVE;
if (sample->flags & CHN_16BIT)
_sign_convert_16((signed short *) sample->data,
sample->length * ((sample->flags & CHN_STEREO) ? 2 : 1));
else
_sign_convert_8(sample->data, sample->length * ((sample->flags & CHN_STEREO) ? 2 : 1));
song_unlock_audio();
}
void cfg_load_midi(cfg_file_t *cfg)
{
midi_config_t *md, *mc;
char buf[17], buf2[33];
int i;
CFG_GET_MI(flags, MIDI_TICK_QUANTIZE | MIDI_RECORD_NOTEOFF
| MIDI_RECORD_VELOCITY | MIDI_RECORD_AFTERTOUCH
| MIDI_PITCHBEND);
CFG_GET_MI(pitch_depth, 12);
CFG_GET_MI(amplification, 100);
CFG_GET_MI(c5note, 60);
song_lock_audio();
md = &default_midi_config;
cfg_get_string(cfg,"MIDI","start", md->start, 31, "FF");
cfg_get_string(cfg,"MIDI","stop", md->stop, 31, "FC");
cfg_get_string(cfg,"MIDI","tick", md->tick, 31, "");
cfg_get_string(cfg,"MIDI","note_on", md->note_on, 31, "9c n v");
cfg_get_string(cfg,"MIDI","note_off", md->note_off, 31, "9c n 0");
cfg_get_string(cfg,"MIDI","set_volume", md->set_volume, 31, "");
cfg_get_string(cfg,"MIDI","set_panning", md->set_panning, 31, "");
cfg_get_string(cfg,"MIDI","set_bank", md->set_bank, 31, "");
cfg_get_string(cfg,"MIDI","set_program", md->set_program, 31, "Cc p");
for (i = 0; i < 16; i++) {
snprintf(buf, 16, "SF%X", i);
cfg_get_string(cfg, "MIDI", buf, md->sfx[i], 31,
i == 0 ? "F0F000z" : "");
}
for (i = 0; i < 128; i++) {
snprintf(buf, 16, "Z%02X", i + 0x80);
if (i < 16)
snprintf(buf2, 32, "F0F001%02x", i * 8);
else
buf2[0] = '\0';
cfg_get_string(cfg, "MIDI", buf, md->zxx[i], 31, buf2);
}
mc = ¤t_song->midi_config;
memcpy(mc, md, sizeof(midi_config_t));
song_unlock_audio();
}
/* this does the lines for playing samples */
static void _draw_sample_play_marks(struct vgamem_overlay *r, song_sample_t * sample)
{
int n, x, y;
int c;
song_voice_t *channel;
unsigned int *channel_list;
if (song_get_mode() == MODE_STOPPED)
return;
song_lock_audio();
n = song_get_mix_state(&channel_list);
while (n--) {
channel = song_get_mix_channel(channel_list[n]);
if (channel->current_sample_data != sample->data)
continue;
if (!channel->final_volume) continue;
c = (channel->flags & (CHN_KEYOFF | CHN_NOTEFADE)) ? SAMPLE_BGMARK_COLOR : SAMPLE_MARK_COLOR;
x = channel->position * (r->width - 1) / sample->length;
if (x >= r->width) {
/* this does, in fact, happen :( */
continue;
}
y = 0;
do {
/* unrolled 8 times */
vgamem_ovl_drawpixel(r, x, y++, c);
vgamem_ovl_drawpixel(r, x, y++, c);
vgamem_ovl_drawpixel(r, x, y++, c);
vgamem_ovl_drawpixel(r, x, y++, c);
vgamem_ovl_drawpixel(r, x, y++, c);
vgamem_ovl_drawpixel(r, x, y++, c);
vgamem_ovl_drawpixel(r, x, y++, c);
vgamem_ovl_drawpixel(r, x, y++, c);
} while (y < r->height);
}
song_unlock_audio();
}
void cfg_save_midi(cfg_file_t *cfg)
{
struct cfg_section *c;
struct midi_provider *p;
struct midi_port *q;
midi_config_t *md, *mc;
char buf[33];
char *ss;
int i, j;
CFG_SET_MI(flags);
CFG_SET_MI(pitch_depth);
CFG_SET_MI(amplification);
CFG_SET_MI(c5note);
song_lock_audio();
md = &default_midi_config;
/* overwrite default */
mc = ¤t_song->midi_config;
memcpy(md, mc, sizeof(midi_config_t));
cfg_set_string(cfg,"MIDI","start", md->start);
cfg_set_string(cfg,"MIDI","stop", md->stop);
cfg_set_string(cfg,"MIDI","tick", md->tick);
cfg_set_string(cfg,"MIDI","note_on", md->note_on);
cfg_set_string(cfg,"MIDI","note_off", md->note_off);
cfg_set_string(cfg,"MIDI","set_volume", md->set_volume);
cfg_set_string(cfg,"MIDI","set_panning", md->set_panning);
cfg_set_string(cfg,"MIDI","set_bank", md->set_bank);
cfg_set_string(cfg,"MIDI","set_program", md->set_program);
for (i = 0; i < 16; i++) {
snprintf(buf, 32, "SF%X", i);
cfg_set_string(cfg, "MIDI", buf, md->sfx[i]);
}
for (i = 0; i < 128; i++) {
snprintf(buf, 32, "Z%02X", i + 0x80);
cfg_set_string(cfg, "MIDI", buf, md->zxx[i]);
}
song_unlock_audio();
/* write out only enabled midi ports */
i = 1;
SDL_mutexP(midi_mutex);
q = NULL;
for (p = port_providers; p; p = p->next) {
while (midi_port_foreach(p, &q)) {
ss = q->name;
if (!ss) continue;
while (isspace(*ss)) ss++;
if (!*ss) continue;
if (!q->io) continue;
snprintf(buf, 32, "MIDI Port %d", i); i++;
cfg_set_string(cfg, buf, "name", ss);
ss = p->name;
if (ss) {
while (isspace(*ss)) ss++;
if (*ss) {
cfg_set_string(cfg, buf, "provider", ss);
}
}
cfg_set_number(cfg, buf, "input", q->io & MIDI_INPUT ? 1 : 0);
cfg_set_number(cfg, buf, "output", q->io & MIDI_OUTPUT ? 1 : 0);
}
}
//TODO: Save number of MIDI-IP ports
SDL_mutexV(midi_mutex);
/* delete other MIDI port sections */
for (c = cfg->sections; c; c = c->next) {
j = -1;
sscanf(c->name, "MIDI Port %d", &j);
if (j < i) continue;
c->omit = 1;
}
}