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xmas-egg

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This commit is contained in:
Robin Gareus 2013-12-13 20:26:30 +01:00
parent fd1d2d804f
commit c43a1f39a6
2 changed files with 59 additions and 1 deletions
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42
libs/plugins/reasonablesynth.lv2/rsynth.c
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@ -89,6 +89,8 @@ typedef struct {
float kcgain;
float kcfilt;
double rate;
uint32_t xmas_on;
uint32_t xmas_off;
} RSSynthesizer;
@ -446,6 +448,44 @@ static void synth_parse_midi(void *synth, const uint8_t *data, const size_t size
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 void synth_parse_xmas(void *synth, const uint8_t *data, const size_t size) {
RSSynthesizer* rs = (RSSynthesizer*)synth;
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;
struct rmidi_event_t ev;
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;
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;
break;
case 0xB0:
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;
break;
default:
return;
}
synth_process_midi_event(synth, &ev);
}
/**
* initialize the synth
* This should be called after synth_alloc()
@ -470,6 +510,8 @@ static void synth_init(void *synth, double rate) {
for (c=0; c < 16; c++) {
synth_load(&rs->sc[c], rate, &synthesize_sineP, &piano_adsr);
}
rs->xmas_on = 0;
rs->xmas_off = 0;
}
/**