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-rw-r--r--libs/plugins/reasonablesynth.lv2/rsynth.c344
1 files changed, 174 insertions, 170 deletions
diff --git a/libs/plugins/reasonablesynth.lv2/rsynth.c b/libs/plugins/reasonablesynth.lv2/rsynth.c
index 6f8c845145..36b5cda704 100644
--- a/libs/plugins/reasonablesynth.lv2/rsynth.c
+++ b/libs/plugins/reasonablesynth.lv2/rsynth.c
@@ -22,9 +22,9 @@
#endif
#include <math.h>
+#include <stdint.h>
#include <stdlib.h>
#include <string.h>
-#include <stdint.h>
#ifndef COMPILER_MSVC
#include <stdbool.h>
@@ -37,12 +37,12 @@
#endif
#ifndef MIN
-#define MIN(A, B) ( (A) < (B) ? (A) : (B) )
+#define MIN(A, B) ((A) < (B) ? (A) : (B))
#endif
/* internal MIDI event abstraction */
enum RMIDI_EV_TYPE {
- INVALID=0,
+ INVALID = 0,
NOTE_ON,
NOTE_OFF,
PROGRAM_CHANGE,
@@ -71,29 +71,29 @@ typedef struct {
} ADSRcfg;
typedef struct _RSSynthChannel {
- uint32_t keycomp;
- uint32_t adsr_cnt[128];
- float adsr_amp[128];
- float phase[128]; // various use, zero'ed on note-on
- int8_t miditable[128]; // internal, note-on/off velocity
- int8_t midimsgs [128]; // internal, note-off + on in same cycle, sustained-off
- int8_t sustain; // sustain pedal pressed
- ADSRcfg adsr;
- void (*synthesize) (struct _RSSynthChannel* sc,
- const uint8_t note, const float vol, const float pc,
- const size_t n_samples, float* left, float* right);
+ uint32_t keycomp;
+ uint32_t adsr_cnt[128];
+ float adsr_amp[128];
+ float phase[128]; // various use, zero'ed on note-on
+ int8_t miditable[128]; // internal, note-on/off velocity
+ int8_t midimsgs[128]; // internal, note-off + on in same cycle, sustained-off
+ int8_t sustain; // sustain pedal pressed
+ ADSRcfg adsr;
+ void (*synthesize) (struct _RSSynthChannel* sc,
+ const uint8_t note, const float vol, const float pc,
+ const size_t n_samples, float* left, float* right);
} RSSynthChannel;
typedef void (*SynthFunction) (RSSynthChannel* sc,
- const uint8_t note,
- const float vol,
- const float pc,
- const size_t n_samples,
+ const uint8_t note,
+ const float vol,
+ const float pc,
+ const size_t n_samples,
float* left, float* right);
typedef struct {
uint32_t boffset;
- float buf [2][BUFFER_SIZE_SAMPLES];
+ float buf[2][BUFFER_SIZE_SAMPLES];
RSSynthChannel sc[16];
float freqs[128];
float kcgain;
@@ -113,7 +113,7 @@ typedef struct {
* @param svol sustain volume level [0..1]
*/
static void
-init_adsr (ADSRcfg *adsr, const double rate,
+init_adsr (ADSRcfg* adsr, const double rate,
const uint32_t a, const uint32_t d, const uint32_t r,
const float avol, const float svol)
{
@@ -123,11 +123,11 @@ init_adsr (ADSRcfg *adsr, const double rate,
adsr->tme[1] = d * rate / 1000.0;
adsr->tme[2] = r * rate / 1000.0;
- assert(adsr->tme[0] > 32);
- assert(adsr->tme[1] > 32);
- assert(adsr->tme[2] > 32);
- assert(adsr->vol[0] >=0 && adsr->vol[1] <= 1.0);
- assert(adsr->vol[1] >=0 && adsr->vol[1] <= 1.0);
+ assert (adsr->tme[0] > 32);
+ assert (adsr->tme[1] > 32);
+ assert (adsr->tme[2] > 32);
+ assert (adsr->vol[0] >= 0 && adsr->vol[1] <= 1.0);
+ assert (adsr->vol[1] >= 0 && adsr->vol[1] <= 1.0);
adsr->off[0] = adsr->tme[0];
adsr->off[1] = adsr->tme[1] + adsr->off[0];
@@ -136,7 +136,7 @@ init_adsr (ADSRcfg *adsr, const double rate,
/* calculate per-sample, per-key envelope */
static inline float
-adsr_env(RSSynthChannel *sc, const uint8_t note)
+adsr_env (RSSynthChannel* sc, const uint8_t note)
{
if (sc->adsr_cnt[note] < sc->adsr.off[0]) {
// attack
@@ -146,10 +146,9 @@ adsr_env(RSSynthChannel *sc, const uint8_t note)
return sc->adsr.vol[0];
} else {
const float d = sc->adsr.vol[0] - sc->adsr_amp[note];
- return sc->adsr_amp[note] + (p / (float) sc->adsr.tme[0]) * d;
+ return sc->adsr_amp[note] + (p / (float)sc->adsr.tme[0]) * d;
}
- }
- else if (sc->adsr_cnt[note] < sc->adsr.off[1]) {
+ } else if (sc->adsr_cnt[note] < sc->adsr.off[1]) {
// decay
const uint32_t p = ++sc->adsr_cnt[note] - sc->adsr.off[0];
if (p == sc->adsr.tme[1]) {
@@ -157,14 +156,12 @@ adsr_env(RSSynthChannel *sc, const uint8_t note)
return sc->adsr.vol[1];
} else {
const float d = sc->adsr.vol[1] - sc->adsr_amp[note];
- return sc->adsr_amp[note] + (p / (float) sc->adsr.tme[1]) * d;
+ return sc->adsr_amp[note] + (p / (float)sc->adsr.tme[1]) * d;
}
- }
- else if (sc->adsr_cnt[note] == sc->adsr.off[1]) {
+ } else if (sc->adsr_cnt[note] == sc->adsr.off[1]) {
// sustain
return sc->adsr.vol[1];
- }
- else if (sc->adsr_cnt[note] < sc->adsr.off[2]) {
+ } else if (sc->adsr_cnt[note] < sc->adsr.off[2]) {
// release
const uint32_t p = ++sc->adsr_cnt[note] - sc->adsr.off[1];
if (p == sc->adsr.tme[2]) {
@@ -172,10 +169,9 @@ adsr_env(RSSynthChannel *sc, const uint8_t note)
return 0;
} else {
const float d = 0 - sc->adsr_amp[note];
- return sc->adsr_amp[note] + (p / (float) sc->adsr.tme[2]) * d;
+ return sc->adsr_amp[note] + (p / (float)sc->adsr.tme[2]) * d;
}
- }
- else {
+ } else {
sc->adsr_cnt[note] = 0;
return 0;
}
@@ -189,109 +185,107 @@ synthesize_sineP (RSSynthChannel* sc,
const size_t n_samples, float* left, float* right)
{
size_t i;
- float phase = sc->phase[note];
+ float phase = sc->phase[note];
- for (i=0; i < n_samples; ++i) {
- float env = adsr_env(sc, note);
- if (sc->adsr_cnt[note] == 0) break;
+ for (i = 0; i < n_samples; ++i) {
+ float env = adsr_env (sc, note);
+ if (sc->adsr_cnt[note] == 0) {
+ break;
+ }
const float amp = vol * env;
if (amp > 1e-10) {
- left[i] += amp * sinf(2.0 * M_PI * phase);
- left[i] += .300 * amp * sinf(2.0 * M_PI * phase * 2.0);
- left[i] += .150 * amp * sinf(2.0 * M_PI * phase * 3.0);
- left[i] += .080 * amp * sinf(2.0 * M_PI * phase * 4.0);
- //left[i] -= .007 * amp * sinf(2.0 * M_PI * phase * 5.0);
- //left[i] += .010 * amp * sinf(2.0 * M_PI * phase * 6.0);
- left[i] += .020 * amp * sinf(2.0 * M_PI * phase * 7.0);
+ left[i] += amp * sinf (2.0 * M_PI * phase);
+ left[i] += .300 * amp * sinf (2.0 * M_PI * phase * 2.0);
+ left[i] += .150 * amp * sinf (2.0 * M_PI * phase * 3.0);
+ left[i] += .080 * amp * sinf (2.0 * M_PI * phase * 4.0);
+ //left[i] -= .007 * amp * sinf(2.0 * M_PI * phase * 5.0);
+ //left[i] += .010 * amp * sinf(2.0 * M_PI * phase * 6.0);
+ left[i] += .020 * amp * sinf (2.0 * M_PI * phase * 7.0);
phase += fq;
- right[i] += amp * sinf(2.0 * M_PI * phase);
- right[i] += .300 * amp * sinf(2.0 * M_PI * phase * 2.0);
- right[i] += .150 * amp * sinf(2.0 * M_PI * phase * 3.0);
- right[i] -= .080 * amp * sinf(2.0 * M_PI * phase * 4.0);
+ right[i] += amp * sinf (2.0 * M_PI * phase);
+ right[i] += .300 * amp * sinf (2.0 * M_PI * phase * 2.0);
+ right[i] += .150 * amp * sinf (2.0 * M_PI * phase * 3.0);
+ right[i] -= .080 * amp * sinf (2.0 * M_PI * phase * 4.0);
//right[i] += .007 * amp * sinf(2.0 * M_PI * phase * 5.0);
//right[i] += .010 * amp * sinf(2.0 * M_PI * phase * 6.0);
- right[i] -= .020 * amp * sinf(2.0 * M_PI * phase * 7.0);
+ right[i] -= .020 * amp * sinf (2.0 * M_PI * phase * 7.0);
} else {
phase += fq;
}
- if (phase > 1.0) phase -= 2.0;
+ if (phase > 1.0)
+ phase -= 2.0;
}
sc->phase[note] = phase;
}
-static const ADSRcfg piano_adsr = {{ 5, 800, 100}, { 1.0, 0.0}, {0, 0, 0}};
+static const ADSRcfg piano_adsr = { { 5, 800, 100 }, { 1.0, 0.0 }, { 0, 0, 0 } };
/*****************************************************************************/
-
/* process note - move through ADSR states, count active keys,.. */
static void
-process_key (void *synth,
+process_key (void* synth,
const uint8_t chn, const uint8_t note,
const size_t n_samples,
- float *left, float *right)
+ float* left, float* right)
{
- RSSynthesizer* rs = (RSSynthesizer*)synth;
- RSSynthChannel* sc = &rs->sc[chn];
- const int8_t vel = sc->miditable[note];
- const int8_t msg = sc->midimsgs[note];
- const float vol = /* master_volume */ 0.1f * abs(vel) / 127.f;
- const float phase = sc->phase[note];
- const int8_t sus = sc->sustain;
+ RSSynthesizer* rs = (RSSynthesizer*)synth;
+ RSSynthChannel* sc = &rs->sc[chn];
+ const int8_t vel = sc->miditable[note];
+ const int8_t msg = sc->midimsgs[note];
+ const float vol = /* master_volume */ 0.1f * abs (vel) / 127.f;
+ const float phase = sc->phase[note];
+ const int8_t sus = sc->sustain;
sc->midimsgs[note] &= ~3;
if (phase == -10 && vel > 0) {
// new note on
sc->midimsgs[note] &= ~4;
- assert(sc->adsr_cnt[note] == 0);
+ assert (sc->adsr_cnt[note] == 0);
sc->adsr_amp[note] = 0;
sc->adsr_cnt[note] = 0;
- sc->phase[note] = 0;
+ sc->phase[note] = 0;
sc->keycomp++;
//printf("[On] Now %d keys active on chn %d\n", sc->keycomp, chn);
- }
- else if (phase >= -1.0 && phase <= 1.0 && vel > 0) {
+ } else if (phase >= -1.0 && phase <= 1.0 && vel > 0) {
// sustain note or re-start note while adsr in progress:
if (sc->adsr_cnt[note] > sc->adsr.off[1] || msg == 3 || msg == 5 || msg == 7) {
sc->midimsgs[note] &= ~4;
// x-fade to attack
- sc->adsr_amp[note] = adsr_env(sc, note);
+ sc->adsr_amp[note] = adsr_env (sc, note);
sc->adsr_cnt[note] = 0;
}
- }
- else if (phase >= -1.0 && phase <= 1.0 && vel < 0) {
+ } else if (phase >= -1.0 && phase <= 1.0 && vel < 0) {
sc->midimsgs[note] |= 4;
// note off
if (sc->adsr_cnt[note] <= sc->adsr.off[1] && !sus) {
if (sc->adsr_cnt[note] != sc->adsr.off[1]) {
// x-fade to release
- sc->adsr_amp[note] = adsr_env(sc, note);
+ sc->adsr_amp[note] = adsr_env (sc, note);
}
sc->adsr_cnt[note] = sc->adsr.off[1] + 1;
- }
- else if (sus && sc->adsr_cnt[note] == sc->adsr.off[1]) {
+ } else if (sus && sc->adsr_cnt[note] == sc->adsr.off[1]) {
sc->adsr_cnt[note] = sc->adsr.off[1] + 1;
}
- }
- else {
+ } else {
//printf("FORCE NOTE OFF: %d %d\n", vel, sus);
/* note-on + off in same cycle */
sc->miditable[note] = 0;
- sc->adsr_cnt[note] = 0;
- sc->phase[note] = -10;
+ sc->adsr_cnt[note] = 0;
+ sc->phase[note] = -10;
return;
}
//printf("NOTE: %d (%d %d %d)\n", sc->adsr_cnt[note], sc->adsr.off[0], sc->adsr.off[1], sc->adsr.off[2]);
// synthesize actual sound
- sc->synthesize(sc, note, vol, rs->freqs[note], n_samples, left, right);
+ sc->synthesize (sc, note, vol, rs->freqs[note], n_samples, left, right);
if (sc->adsr_cnt[note] == 0) {
//printf("Note %d,%d released\n", chn, note);
- sc->midimsgs[note] = 0;
+ sc->midimsgs[note] = 0;
sc->miditable[note] = 0;
- sc->adsr_amp[note] = 0;
- sc->phase[note] = -10;
+ sc->adsr_amp[note] = 0;
+ sc->phase[note] = -10;
sc->keycomp--;
//printf("[off] Now %d keys active on chn %d\n", sc->keycomp, chn);
}
@@ -299,29 +293,32 @@ process_key (void *synth,
/* synthesize a BUFFER_SIZE_SAMPLES's of audio-data */
static void
-synth_fragment (void *synth, const size_t n_samples, float *left, float *right)
+synth_fragment (void* synth, const size_t n_samples, float* left, float* right)
{
RSSynthesizer* rs = (RSSynthesizer*)synth;
- memset (left, 0, n_samples * sizeof(float));
- memset (right, 0, n_samples * sizeof(float));
+ memset (left, 0, n_samples * sizeof (float));
+ memset (right, 0, n_samples * sizeof (float));
uint8_t keycomp = 0;
- int c,k;
- size_t i;
+ int c, k;
+ size_t i;
- for (c=0; c < 16; ++c) {
- for (k=0; k < 128; ++k) {
- if (rs->sc[c].miditable[k] == 0) continue;
- process_key(synth, c, k, n_samples, left, right);
+ for (c = 0; c < 16; ++c) {
+ for (k = 0; k < 128; ++k) {
+ if (rs->sc[c].miditable[k] == 0) {
+ continue;
+ }
+ process_key (synth, c, k, n_samples, left, right);
}
keycomp += rs->sc[c].keycomp;
}
#if 1 // key-compression
float kctgt = 8.0 / (float)(keycomp + 7.0);
- if (kctgt < .5) kctgt = .5;
+ if (kctgt < .5) kctgt = .5;
if (kctgt > 1.0) kctgt = 1.0;
+
const float _w = rs->kcfilt;
- for (i=0; i < n_samples; ++i) {
+ for (i = 0; i < n_samples; ++i) {
rs->kcgain += _w * (kctgt - rs->kcgain);
left[i] *= rs->kcgain;
right[i] *= rs->kcgain;
@@ -331,7 +328,7 @@ synth_fragment (void *synth, const size_t n_samples, float *left, float *right)
}
static void
-synth_reset_channel(RSSynthChannel* sc)
+synth_reset_channel (RSSynthChannel* sc)
{
int k;
for (k = 0; k < 128; ++k) {
@@ -345,25 +342,25 @@ synth_reset_channel(RSSynthChannel* sc)
}
static void
-synth_reset(void *synth)
+synth_reset (void* synth)
{
RSSynthesizer* rs = (RSSynthesizer*)synth;
- int c;
- for (c=0; c < 16; ++c) {
- synth_reset_channel(&(rs->sc[c]));
+ int c;
+ for (c = 0; c < 16; ++c) {
+ synth_reset_channel (&(rs->sc[c]));
}
rs->kcgain = 0;
}
static void
-synth_load (RSSynthChannel *sc, const double rate,
- SynthFunction synthesize,
- ADSRcfg const * const adsr)
+synth_load (RSSynthChannel* sc, const double rate,
+ SynthFunction synthesize,
+ ADSRcfg const* const adsr)
{
- synth_reset_channel(sc);
- init_adsr(&sc->adsr, rate,
- adsr->tme[0], adsr->tme[1], adsr->tme[2],
- adsr->vol[0], adsr->vol[1]);
+ synth_reset_channel (sc);
+ init_adsr (&sc->adsr, rate,
+ adsr->tme[0], adsr->tme[1], adsr->tme[2],
+ adsr->vol[0], adsr->vol[1]);
sc->synthesize = synthesize;
}
@@ -371,10 +368,10 @@ synth_load (RSSynthChannel *sc, const double rate,
* internal abstraction of MIDI data handling
*/
static void
-synth_process_midi_event(void *synth, struct rmidi_event_t *ev)
+synth_process_midi_event (void* synth, struct rmidi_event_t* ev)
{
RSSynthesizer* rs = (RSSynthesizer*)synth;
- switch(ev->type) {
+ switch (ev->type) {
case NOTE_ON:
rs->sc[ev->channel].midimsgs[ev->d.tone.note] |= 1;
if (rs->sc[ev->channel].miditable[ev->d.tone.note] <= 0)
@@ -392,12 +389,12 @@ synth_process_midi_event(void *synth, struct rmidi_event_t *ev)
/* 0x00 and 0x20 are used for BANK select */
} else if (ev->d.control.param == 64) {
/* damper pedal*/
- rs->sc[ev->channel].sustain = ev->d.control.value < 64 ? 0: 1;
+ rs->sc[ev->channel].sustain = ev->d.control.value < 64 ? 0 : 1;
} else if (ev->d.control.param == 121) {
/* reset all controllers */
} else if (ev->d.control.param == 120 || ev->d.control.param == 123) {
/* Midi panic: 120: all sound off, 123: all notes off*/
- synth_reset_channel(&(rs->sc[ev->channel]));
+ synth_reset_channel (&(rs->sc[ev->channel]));
} else if (ev->d.control.param >= 120) {
/* params 122-127 are reserved - skip them. */
}
@@ -422,23 +419,23 @@ synth_process_midi_event(void *synth, struct rmidi_event_t *ev)
* @return end of buffer (written + nframes)
*/
static uint32_t
-synth_sound (void *synth, uint32_t written, const uint32_t nframes, float **out)
+synth_sound (void* synth, uint32_t written, const uint32_t nframes, float** out)
{
RSSynthesizer* rs = (RSSynthesizer*)synth;
while (written < nframes) {
uint32_t nremain = nframes - written;
- if (rs->boffset >= BUFFER_SIZE_SAMPLES) {
- const uint32_t tosynth = MIN(BUFFER_SIZE_SAMPLES, nremain);
- rs->boffset = BUFFER_SIZE_SAMPLES - tosynth;
- synth_fragment(rs, tosynth, &(rs->buf[0][rs->boffset]), &(rs->buf[1][rs->boffset]));
+ if (rs->boffset >= BUFFER_SIZE_SAMPLES) {
+ const uint32_t tosynth = MIN (BUFFER_SIZE_SAMPLES, nremain);
+ rs->boffset = BUFFER_SIZE_SAMPLES - tosynth;
+ synth_fragment (rs, tosynth, &(rs->buf[0][rs->boffset]), &(rs->buf[1][rs->boffset]));
}
- uint32_t nread = MIN(nremain, (BUFFER_SIZE_SAMPLES - rs->boffset));
+ uint32_t nread = MIN (nremain, (BUFFER_SIZE_SAMPLES - rs->boffset));
- memcpy(&out[0][written], &rs->buf[0][rs->boffset], nread*sizeof(float));
- memcpy(&out[1][written], &rs->buf[1][rs->boffset], nread*sizeof(float));
+ memcpy (&out[0][written], &rs->buf[0][rs->boffset], nread * sizeof (float));
+ memcpy (&out[1][written], &rs->buf[1][rs->boffset], nread * sizeof (float));
written += nread;
rs->boffset += nread;
@@ -454,83 +451,89 @@ synth_sound (void *synth, uint32_t written, const uint32_t nframes, float **out)
* @param size number of bytes in the midi-message
*/
static void
-synth_parse_midi (void *synth, const uint8_t *data, const size_t size)
+synth_parse_midi (void* synth, const uint8_t* data, const size_t size)
{
- if (size < 2 || size > 3) return;
+ if (size < 2 || size > 3)
+ return;
// All messages need to be 3 bytes; except program-changes: 2bytes.
- if (size == 2 && (data[0] & 0xf0) != 0xC0) return;
+ if (size == 2 && (data[0] & 0xf0) != 0xC0)
+ return;
struct rmidi_event_t ev;
- ev.channel = data[0]&0x0f;
+ ev.channel = data[0] & 0x0f;
switch (data[0] & 0xf0) {
case 0x80:
- ev.type=NOTE_OFF;
- ev.d.tone.note=data[1]&0x7f;
- ev.d.tone.velocity=data[2]&0x7f;
+ ev.type = NOTE_OFF;
+ ev.d.tone.note = data[1] & 0x7f;
+ ev.d.tone.velocity = data[2] & 0x7f;
break;
case 0x90:
- ev.type=NOTE_ON;
- ev.d.tone.note=data[1]&0x7f;
- ev.d.tone.velocity=data[2]&0x7f;
+ ev.type = NOTE_ON;
+ ev.d.tone.note = data[1] & 0x7f;
+ ev.d.tone.velocity = data[2] & 0x7f;
if (ev.d.tone.velocity == 0) {
- ev.type=NOTE_OFF;
+ ev.type = NOTE_OFF;
}
break;
case 0xB0:
- ev.type=CONTROL_CHANGE;
- ev.d.control.param=data[1]&0x7f;
- ev.d.control.value=data[2]&0x7f;
+ ev.type = CONTROL_CHANGE;
+ ev.d.control.param = data[1] & 0x7f;
+ ev.d.control.value = data[2] & 0x7f;
break;
case 0xC0:
- ev.type=PROGRAM_CHANGE;
- ev.d.control.value=data[1]&0x7f;
+ ev.type = PROGRAM_CHANGE;
+ ev.d.control.value = data[1] & 0x7f;
break;
default:
return;
}
- synth_process_midi_event(synth, &ev);
+ synth_process_midi_event (synth, &ev);
}
-static const uint8_t jingle[] = { 71 ,71 ,71 ,71 ,71 ,71 ,71 ,74 ,67 ,69 ,71 ,72 ,72 ,72 ,72 ,72 ,71 ,71 ,71 ,71 ,71 ,69 ,69 ,71 ,69 ,74 ,71 ,71 ,71 ,71 ,71 ,71 ,71 ,74 ,67 ,69 ,71 ,72 ,72 ,72 ,72 ,72 ,71 ,71 ,71 ,71 ,74 ,74 ,72 ,69 ,67 ,62 ,62 ,71 ,69 ,67 ,62 ,62 ,62 ,62 ,71 ,69 ,67 ,64 ,64 ,64 ,72 ,71 ,69 ,66 ,74 ,76 ,74 ,72 ,69 ,71 ,62 ,62 ,71 ,69 ,67 ,62 ,62 ,62 ,62 ,71 ,69 ,67 ,64 ,64 ,64 ,72 ,71 ,69 ,74 ,74 ,74 ,74 ,76 ,74 ,72 ,69 ,67 ,74 ,71 ,71 ,71 ,71 ,71 ,71 ,71 ,74 ,67 ,69 ,71 ,72 ,72 ,72 ,72 ,72 ,71 ,71 ,71 ,71 ,71 ,69 ,69 ,71 ,69 ,74 ,71 ,71 ,71 ,71 ,71 ,71 ,71 ,74 ,67 ,69 ,71 ,72 ,72 ,72 ,72 ,72 ,71 ,71 ,71 ,71 ,74 ,74 ,72 ,69 ,67 };
+static const uint8_t jingle[] = { 71, 71, 71, 71, 71, 71, 71, 74, 67, 69, 71, 72, 72, 72, 72, 72, 71, 71, 71, 71, 71, 69, 69, 71, 69, 74, 71, 71, 71, 71, 71, 71, 71, 74, 67, 69, 71, 72, 72, 72, 72, 72, 71, 71, 71, 71, 74, 74, 72, 69, 67, 62, 62, 71, 69, 67, 62, 62, 62, 62, 71, 69, 67, 64, 64, 64, 72, 71, 69, 66, 74, 76, 74, 72, 69, 71, 62, 62, 71, 69, 67, 62, 62, 62, 62, 71, 69, 67, 64, 64, 64, 72, 71, 69, 74, 74, 74, 74, 76, 74, 72, 69, 67, 74, 71, 71, 71, 71, 71, 71, 71, 74, 67, 69, 71, 72, 72, 72, 72, 72, 71, 71, 71, 71, 71, 69, 69, 71, 69, 74, 71, 71, 71, 71, 71, 71, 71, 74, 67, 69, 71, 72, 72, 72, 72, 72, 71, 71, 71, 71, 74, 74, 72, 69, 67 };
static void
-synth_parse_xmas(void *synth, const uint8_t *data, const size_t size)
+synth_parse_xmas (void* synth, const uint8_t* data, const size_t size)
{
RSSynthesizer* rs = (RSSynthesizer*)synth;
- if (size < 2 || size > 3) return;
+ if (size < 2 || size > 3)
+ return;
// All messages need to be 3 bytes; except program-changes: 2bytes.
- if (size == 2 && (data[0] & 0xf0) != 0xC0) return;
+ if (size == 2 && (data[0] & 0xf0) != 0xC0)
+ return;
struct rmidi_event_t ev;
- ev.channel = data[0]&0x0f;
+ ev.channel = data[0] & 0x0f;
switch (data[0] & 0xf0) {
case 0x80:
- ev.type=NOTE_OFF;
- ev.d.tone.note=jingle[rs->xmas_off++];
- ev.d.tone.velocity=data[2]&0x7f;
- if (rs->xmas_off >= sizeof(jingle)) rs->xmas_off = 0;
+ ev.type = NOTE_OFF;
+ ev.d.tone.note = jingle[rs->xmas_off++];
+ ev.d.tone.velocity = data[2] & 0x7f;
+ if (rs->xmas_off >= sizeof (jingle))
+ rs->xmas_off = 0;
break;
case 0x90:
- ev.type=NOTE_ON;
- ev.d.tone.note=jingle[rs->xmas_on++];
- ev.d.tone.velocity=data[2]&0x7f;
- if (rs->xmas_on >= sizeof(jingle)) rs->xmas_on = 0;
+ ev.type = NOTE_ON;
+ ev.d.tone.note = jingle[rs->xmas_on++];
+ ev.d.tone.velocity = data[2] & 0x7f;
+ if (rs->xmas_on >= sizeof (jingle))
+ rs->xmas_on = 0;
break;
case 0xB0:
- ev.type=CONTROL_CHANGE;
- ev.d.control.param=data[1]&0x7f;
- ev.d.control.value=data[2]&0x7f;
+ ev.type = CONTROL_CHANGE;
+ ev.d.control.param = data[1] & 0x7f;
+ ev.d.control.value = data[2] & 0x7f;
break;
case 0xC0:
- ev.type=PROGRAM_CHANGE;
- ev.d.control.value=data[1]&0x7f;
+ ev.type = PROGRAM_CHANGE;
+ ev.d.control.value = data[1] & 0x7f;
break;
default:
return;
}
- synth_process_midi_event(synth, &ev);
+ synth_process_midi_event (synth, &ev);
}
/**
* initialize the synth
@@ -541,23 +544,24 @@ synth_parse_xmas(void *synth, const uint8_t *data, const size_t size)
* @param rate sample-rate
*/
static void
-synth_init(void* synth, double rate) {
- RSSynthesizer* rs = (RSSynthesizer*)synth;
- rs->rate = rate;
- rs->boffset = BUFFER_SIZE_SAMPLES;
+synth_init (void* synth, double rate)
+{
+ RSSynthesizer* rs = (RSSynthesizer*)synth;
+ rs->rate = rate;
+ rs->boffset = BUFFER_SIZE_SAMPLES;
const float tuning = 440;
- int c,k;
- for (k=0; k < 128; k++) {
- rs->freqs[k] = (tuning / 32.0f) * powf(2, (k - 9.0) / 12.0) / rate;
- assert(rs->freqs[k] < M_PI/2); // otherwise spatialization may phase out..
+ int c, k;
+ for (k = 0; k < 128; k++) {
+ rs->freqs[k] = (tuning / 32.0f) * powf (2, (k - 9.0) / 12.0) / rate;
+ assert (rs->freqs[k] < M_PI / 2); // otherwise spatialization may phase out..
}
rs->kcfilt = 12.0 / rate;
- synth_reset(synth);
+ synth_reset (synth);
- for (c=0; c < 16; c++) {
- synth_load(&rs->sc[c], rate, &synthesize_sineP, &piano_adsr);
+ for (c = 0; c < 16; c++) {
+ synth_load (&rs->sc[c], rate, &synthesize_sineP, &piano_adsr);
}
- rs->xmas_on = 0;
+ rs->xmas_on = 0;
rs->xmas_off = 0;
}
@@ -572,9 +576,9 @@ synth_init(void* synth, double rate) {
* @return synth-handle
*/
static void*
-synth_alloc(void)
+synth_alloc (void)
{
- return calloc(1, sizeof(RSSynthesizer));
+ return calloc (1, sizeof (RSSynthesizer));
}
/**
@@ -582,7 +586,7 @@ synth_alloc(void)
* @param synth synth-handle
*/
static void
-synth_free(void *synth)
+synth_free (void* synth)
{
- free(synth);
+ free (synth);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-06 05:48:55 +0000