-
Notifications
You must be signed in to change notification settings - Fork 12
/
pattern.c
743 lines (617 loc) · 24.4 KB
/
pattern.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
/*
* Komposter
*
* Copyright (c) 2010 Noora Halme et al. (see AUTHORS)
*
* This code is licensed under the GNU General Public
* License version 2. See LICENSE for full text.
*
* Pattern editor page
*
*/
#include "pattern.h"
// button indexes
#define B_PREV 0
#define B_NEXT 1
#define B_SHORTER 2
#define B_LONGER 3
#define B_OCTUP 4
#define B_OCTDN 5
#define B_PREVSYN 6
#define B_SYNNAME 7
#define B_NEXTSYN 8
#define B_PATTPLAY 9
#define B_PATTLOAD 10
#define B_PATTSAVE 11
#define B_PATTCLEAR 12
#define B_COPY 13
#define B_PASTE 14
#define KB_WIDTH 40
#define PIANOROLL_Y 528.5
#define PIANOROLL_X KB_WIDTH+5.5
#define PIANOROLL_HEIGHT 336
#define PIANOROLL_CELLWIDTH 11
#define PIANOROLL_CELLHEIGHT 7
#define PIANOROLL_BEAT (PIANOROLL_CELL*4)
#define PIANOROLL_OCTAVES 6
// from modules.c
extern float pitch[MAX_SYNTH];
extern int accent[MAX_SYNTH];
extern int gate[MAX_SYNTH];
extern int audiomode; // from audio.c
extern unsigned long playpos;
extern unsigned int audiomode_flags;
// from sequencer.c
extern int bpm;
extern int beats_per_measure;
extern int beatdiv;
extern int csynth; // from synthesizer.c
extern char synthname[MAX_SYNTH][128]; // from synthesizer.c
extern char patchname[MAX_SYNTH][MAX_PATCHES][128]; // from patch.c
extern synthmodule mod[MAX_SYNTH][MAX_MODULES]; // ditto
extern int signalfifo[MAX_SYNTH][MAX_MODULES]; // module execution stack
extern int cpatch[MAX_SYNTH]; // selected patch for each synth
// from patch.c
extern char pianokeys[29];
extern int kpkeydown;
// black or white key
const unsigned char keycolor[12]={1,0,1,0,1,1,0,1,0,1,0,1};
u32 pattdata[MAX_PATTERN][MAX_PATTLENGTH];
u32 pattlen[MAX_PATTERN];
u32 patt_clipboard[MAX_PATTLENGTH];
u32 patt_clipboard_len;
int cpatt, coct;
int patt_ui[15];
int piano_hover, piano_note, piano_drag, piano_dragto;
int piano_start;
int slide_hover;
float slide_drag_xofs;
int slide_drag, slide_drag_start;
int patt_cpatch;
int piano_porta_drag, piano_porta_drag_len, piano_porta_drag_from;
// initialize pattern data to defaults
void pattern_init()
{
int i,j;
cpatt=0;
coct=3;
for(i=0;i<MAX_PATTERN;i++) {
pattlen[i]=4;
for(j=0;j<MAX_PATTLENGTH;j++) pattdata[i][j]=0;
}
piano_note=-1; piano_hover=-1; piano_drag=-1; piano_dragto=-1;
piano_start=0; slide_hover=0;
patt_cpatch=0;
piano_porta_drag=-1; piano_porta_drag_len=0;
for(i=0;i<13;i++) patt_ui[i]=0;
patt_clipboard_len=0;
}
void pattern_toggleplayback()
{
int patt_playing;
patt_playing=((audiomode==AUDIOMODE_PATTERNPLAY)&1)^1;
patt_ui[B_PATTPLAY]&=1;
patt_ui[B_PATTPLAY]|=(patt_playing<<1);
playpos=0;
gate[0]=0;
if (patt_playing) {
audiomode=AUDIOMODE_PATTERNPLAY; audiomode_flags|=1;
} else {
audiomode=AUDIOMODE_COMPOSING;
}
}
// returns pattern offset the cursor is on top of or -1 if the cursor is currently
// off the piano roll. when a position is returned, the int pointed by note is set to
// the midi note number under the cursor.
int pattern_cursorpos(int x, int y, int *note)
{
int cx,cy;
float lineheight;
if (((coct+PIANOROLL_OCTAVES)*12)<MAX_NOTE) {
lineheight=PIANOROLL_OCTAVES*12;
} else {
lineheight=PIANOROLL_OCTAVES*12 - (((coct+PIANOROLL_OCTAVES)*12)-MAX_NOTE);
}
if (
x > PIANOROLL_X &&
x < (PIANOROLL_X + (pattlen[cpatt]*(beats_per_measure*beatdiv))*PIANOROLL_CELLWIDTH + 1) &&
y < PIANOROLL_Y + 3 &&
y > (PIANOROLL_Y + 1 - lineheight*PIANOROLL_CELLHEIGHT)
)
{
cx=(int)((x-PIANOROLL_X)/PIANOROLL_CELLWIDTH)-1;
cy=abs((int)((y-PIANOROLL_Y-2)/PIANOROLL_CELLHEIGHT));
if (note) *note=coct*12+cy;
return cx;
}
return -1;
}
void pattern_mouse_hover(int x, int y)
{
// test buttons
patt_ui[B_PREV]=hovertest_box(x, y, 14, DS_HEIGHT-14, 16, 16);
patt_ui[B_NEXT]=hovertest_box(x, y, 64, DS_HEIGHT-14, 16, 16);
patt_ui[B_SHORTER]=hovertest_box(x, y, 98, DS_HEIGHT-14, 16, 16);
patt_ui[B_LONGER]=hovertest_box(x, y, 180, DS_HEIGHT-14, 16, 16);
patt_ui[B_OCTDN]=hovertest_box(x, y, 12, PIANOROLL_Y+16, 16, 16);
patt_ui[B_OCTUP]=hovertest_box(x, y, 32, PIANOROLL_Y+16, 16, 16);
patt_ui[B_PREVSYN]=hovertest_box(x, y, 214, DS_HEIGHT-14, 16, 16);
patt_ui[B_NEXTSYN]=hovertest_box(x, y, 430, DS_HEIGHT-14, 16, 16);
patt_ui[B_PATTCLEAR]=hovertest_box(x, y, 555, DS_HEIGHT-14, 16, 16) | (patt_ui[B_PATTCLEAR]&8);
patt_ui[B_COPY]=hovertest_box(x,y,622, DS_HEIGHT-14, 16, 16);
patt_ui[B_PASTE]=hovertest_box(x,y,644, DS_HEIGHT-14, 16, 16);
if (patt_clipboard_len==0) patt_ui[B_PASTE]=0;
patt_ui[B_PATTPLAY]=hovertest_box(x, y, 482, DS_HEIGHT-14, 16, 42);
if (audiomode==AUDIOMODE_PATTERNPLAY) patt_ui[B_PATTPLAY]|=2;
// hovering above piano roll?
piano_note=-1;
piano_hover=pattern_cursorpos(x,y,&piano_note);
// hovering above slider?
slide_hover=hovertest_hslider(x,y,PIANOROLL_X, PIANOROLL_Y+12, (DS_WIDTH-(PIANOROLL_X+6)), 12,
piano_start, (DS_WIDTH-(PIANOROLL_X+4))/PIANOROLL_CELLWIDTH, pattlen[cpatt]*(beats_per_measure*beatdiv));
// any ui-elements active?
//for(m=0;m<7;m++) if (patt_ui[m]&1) return;
}
void pattern_mouse_drag(int x, int y)
{
int m,n,note,i;
float f, cos, cip, sbw, slw;
// dragging a new note, paint all cells from drag point to current cell
if (piano_drag >= 0) {
m=pattern_cursorpos(x, y, ¬e); // disregard note
if (m>=piano_drag) piano_dragto=m;
return;
}
// dragging the piano roll scrollbar
if (slide_drag>0) {
sbw=DS_WIDTH-(PIANOROLL_X+6); // scrollbar width
cos=(DS_WIDTH-(PIANOROLL_X))/PIANOROLL_CELLWIDTH; // cells on screen
cip=pattlen[cpatt]*(beats_per_measure*beatdiv); // cells in pattern
slw=sbw*(cos/cip);
f=((x-slide_drag_xofs)/(sbw-slw))*(cip-cos);
piano_start=slide_drag_start+f;
if (piano_start>(1+cip-cos)) piano_start=(1+cip-cos);
if (piano_start<0) piano_start=0;
return;
}
if (piano_porta_drag >= 0) {
n=pattdata[cpatt][piano_start+piano_porta_drag]; // current note being dragged
m=pattern_cursorpos(x, y, ¬e);
if (note != n) {
// replace the note on the pattern data
for(i=0;i<piano_porta_drag_len;i++) {
pattdata[cpatt][piano_start+piano_porta_drag+i]&=0xff80;
pattdata[cpatt][piano_start+piano_porta_drag+i]|=note&0xff;
}
piano_note=note&0xff;
//audio_trignote(0, piano_note); // audio feedback
}
}
}
void pattern_mouse_click(int button, int state, int x, int y)
{
int i,m,j,l;
char tmps[256];
if (button==GLUT_LEFT_BUTTON) {
if (state==GLUT_DOWN) {
// test first if piano roll is clicked with modifiers
m=glutGetModifiers();
if (m==GLUT_ACTIVE_SHIFT) {
if (piano_hover>=0 && piano_note==(pattdata[cpatt][piano_start+piano_hover]&0xff)) {
// wipe the note from begin to end
i=piano_start+piano_hover;
while(pattdata[cpatt][i]&NOTE_LEGATO) i--;
do { pattdata[cpatt][i++]=0;
} while(pattdata[cpatt][i]&NOTE_LEGATO);
return;
}
}
// clear the pattern
if (patt_ui[B_PATTCLEAR]&1) {
if (patt_ui[B_PATTCLEAR]&8) {
for(i=0;i<MAX_PATTLENGTH;i++) pattdata[cpatt][i]=0;
sprintf(tmps, "Pattern %02d cleared", cpatt);
console_post(tmps);
patt_ui[B_PATTCLEAR]&=0xff-8;
} else {
console_post("Click again to clear pattern");
patt_ui[B_PATTCLEAR]|=8;
}
return;
} else {
patt_ui[B_PATTCLEAR]&=0xff-8;
}
// click on the ui buttons
if (patt_ui[B_PREV]) { if (cpatt>0) cpatt--; return; }
if (patt_ui[B_NEXT]) { if (cpatt<MAX_PATTERN) cpatt++; return; }
if (patt_ui[B_SHORTER]) {
if (pattlen[cpatt]>1) {
// clear the pattern data no longer visible if shift down
m=glutGetModifiers();
if (m==GLUT_ACTIVE_SHIFT) {
for(i=((pattlen[cpatt]*(beats_per_measure*beatdiv))/2); i<(pattlen[cpatt]*(beats_per_measure*beatdiv)); i++) pattdata[cpatt][i]=0;
}
pattlen[cpatt]/=2;
while (piano_start >
( 1+pattlen[cpatt]*(beats_per_measure*beatdiv) - ( (DS_WIDTH-(PIANOROLL_X))/PIANOROLL_CELLWIDTH ) ) ) piano_start--;
if (piano_start<0) piano_start=0;
}
return;
}
if (patt_ui[B_LONGER]) {
if (pattlen[cpatt]<16) {
pattlen[cpatt]*=2;
// duplicate first half of pattern to second half if shift pressed
m=glutGetModifiers();
if (m==GLUT_ACTIVE_SHIFT) {
for(i=0; i<((pattlen[cpatt]*(beats_per_measure*beatdiv))/2); i++) pattdata[cpatt][i+((pattlen[cpatt]*(beats_per_measure*beatdiv))/2)]=pattdata[cpatt][i];
}
}
return;
}
if (patt_ui[B_OCTDN]) { if (coct>0) coct--; return; }
if (patt_ui[B_OCTUP]) { if (coct<MAX_OCTAVE) coct++; return; }
if (patt_ui[B_PREVSYN]) { if (csynth[cpatch]>0) csynth[cpatch]--;
audio_loadpatch(0, csynth, cpatch[csynth]);
return; }
if (patt_ui[B_NEXTSYN]) { if (csynth[cpatch]<(MAX_PATCHES-1)) csynth[cpatch]++;
audio_loadpatch(0, csynth, cpatch[csynth]);
return; }
if (patt_ui[B_PATTPLAY]&1) pattern_toggleplayback();
if (patt_ui[B_COPY]) {
// copy pattern data to clipboard
for(i=0; i<pattlen[cpatt]*(beats_per_measure*beatdiv); i++) patt_clipboard[i]=pattdata[cpatt][i];
patt_clipboard_len=pattlen[cpatt]*(beats_per_measure*beatdiv);
console_post("Current pattern copied to clipboard");
}
if (patt_ui[B_PASTE] && patt_clipboard_len>0) {
for(i=0; i<patt_clipboard_len; i++) pattdata[cpatt][i]=patt_clipboard[i];
}
// click on the piano roll?
if (piano_hover>=0) {
if (piano_note==(pattdata[cpatt][piano_start+piano_hover]&0xff)) {
// clicked on an existing note, start drag up/down
j=piano_hover;
if (pattdata[cpatt][piano_start+j]&NOTE_LEGATO) {
while (pattdata[cpatt][piano_start+j]&NOTE_LEGATO) j--;
}
for(l=1; pattdata[cpatt][piano_start+j+l]&NOTE_LEGATO; l++);
piano_porta_drag=j;
piano_porta_drag_len=l;
piano_porta_drag_from=pattdata[cpatt][piano_start+j]&0xff;
} else {
// create a new note - set the 1/16th note on the pattern
pattdata[cpatt][piano_start+piano_hover]=piano_note;
piano_drag=piano_hover; //drag note stating from this cell
piano_dragto=piano_hover;
// trig the note to get an audible feedback
audio_trignote(0, piano_note);
}
}
// click on the slider?
if (slide_hover) {
slide_drag=1;
slide_drag_xofs=x;
slide_drag_start=piano_start;
}
}
if (state==GLUT_UP) {
if (slide_drag) { slide_drag=0; return; }
if (piano_drag>=0) {
// released the drag, draw the notes with legato and reset drag
for(m=piano_drag;m<=piano_dragto;m++) pattdata[cpatt][piano_start+m]=pattdata[cpatt][piano_start+piano_drag]|NOTE_LEGATO;
pattdata[cpatt][piano_start+piano_drag]&=0xff; // legato off from the first note
pattdata[cpatt][piano_start+piano_dragto+1]&=0xff; // legato off from the note which follows
piano_drag=-1;
piano_dragto=-1;
gate[0]=0; // note off
}
if (piano_porta_drag>=0) {
piano_porta_drag=-1;
piano_porta_drag_len=0;
gate[0]=0; // note off
}
}
}
if (button==GLUT_RIGHT_BUTTON) {
if (state==GLUT_DOWN) {
if (piano_hover>=0) {
// right click to set accent
if (pattdata[cpatt][piano_start+piano_hover]) { // got a note here
if (pattdata[cpatt][piano_start+piano_hover]&NOTE_LEGATO) {
//printf("legato here\n"); // do nothing
} else {
// first note, so mark it with an accent
pattdata[cpatt][piano_start+piano_hover]^=NOTE_ACCENT;
}
}
}
}
}
}
// keyboard callback
void pattern_keyboard(unsigned char key, int x, int y)
{
int i,pkey;
switch (key) {
case ' ': pattern_toggleplayback(); return; break;
case '-':
if (pattlen[cpatt]>1) pattlen[cpatt]/=2;
while (piano_start >
( 1+pattlen[cpatt]*(beats_per_measure*beatdiv) - ( (DS_WIDTH-(PIANOROLL_X))/PIANOROLL_CELLWIDTH ) ) ) piano_start--;
if (piano_start<0) piano_start=0;
return;
break;
case '+':
if (pattlen[cpatt]<16) pattlen[cpatt]*=2;
return;
break;
case ',':
if (csynth[cpatch]>0) csynth[cpatch]--;
audio_loadpatch(0, csynth, cpatch[csynth]);
return;
break;
case '.':
if (csynth[cpatch]<(MAX_PATCHES-1)) csynth[cpatch]++;
audio_loadpatch(0, csynth, cpatch[csynth]);
return;
break;
}
// keyjazzing! w00t!
for (i=0;i<29;i++) {
if (pianokeys[i]==key) {
// trig note. use same base octave as pattern editor
pkey=coct*12 + i;
kpkeydown=pkey;
audio_trignote(0, pkey);
}
}
}
void pattern_specialkey(unsigned char key, int x, int y)
{
switch(key)
{
case GLUT_KEY_LEFT:
if (cpatt>0) cpatt--;
break;
case GLUT_KEY_RIGHT:
if (cpatt<MAX_PATTERN) cpatt++;
break;
case GLUT_KEY_DOWN:
if (coct>0) coct--;
break;
case GLUT_KEY_UP:
if (coct<(9-PIANOROLL_OCTAVES)) coct++;
break;
case GLUT_KEY_PAGE_DOWN:
break;
case GLUT_KEY_PAGE_UP:
break;
}
}
void pattern_keyboardup(unsigned char key, int x, int y)
{
int i;
for (i=0;i<29;i++) {
if (pianokeys[i]==key) {
// if this key is still down, drop gate and trig
if (kpkeydown==(i+coct*12)) {
gate[0]=0;
kpkeydown=-1;
}
}
}
}
void pattern_draw(void)
{
int i,j,n,l;
char tmps[256];
long ticks;
int rkdown;
float lineheight;
// draw keyboard, highlight a note if cursor is on piano roll
rkdown=-1;
if (piano_drag>=0) rkdown=piano_drag;
if (kpkeydown>=0) rkdown=kpkeydown;
for(i=0;i<PIANOROLL_OCTAVES;i++)
if ((coct+i)<10)draw_kboct(round(PIANOROLL_Y-(12*PIANOROLL_CELLHEIGHT*i)), 40, 12, coct+i, piano_note, rkdown);
// backgrounds and divider lines for note grid
for(j=0;j<(PIANOROLL_OCTAVES*12+1);j++) {
if (coct*12+j > MAX_NOTE) continue;
if (keycolor[j%12]) {
glColor4ub(0x20, 0x20, 0x20, 0xff);
} else {
glColor4ub(0x00, 0x00, 0x00, 0xff);
}
glBegin(GL_QUADS);
glVertex2f(PIANOROLL_X, PIANOROLL_Y-(j*PIANOROLL_CELLHEIGHT));
glVertex2f(PIANOROLL_X+(pattlen[cpatt]*(beats_per_measure*beatdiv)-piano_start)*PIANOROLL_CELLWIDTH, PIANOROLL_Y-(j*PIANOROLL_CELLHEIGHT));
glVertex2f(PIANOROLL_X+(pattlen[cpatt]*(beats_per_measure*beatdiv)-piano_start)*PIANOROLL_CELLWIDTH, PIANOROLL_Y-((j+1)*PIANOROLL_CELLHEIGHT));
glVertex2f(PIANOROLL_X, PIANOROLL_Y-((j+1)*PIANOROLL_CELLHEIGHT));
glEnd();
glColor4f(0.3, 0.3, 0.3, 0.8);
if ((j%12)==0) glColor4f(0.5, 0.5, 0.5, 0.8);
glEnable(GL_LINE_STIPPLE);
glLineStipple(1, 0xaaaa);
glBegin(GL_LINES);
glVertex2f(PIANOROLL_X, PIANOROLL_Y-(j*PIANOROLL_CELLHEIGHT));
glVertex2f(PIANOROLL_X+(pattlen[cpatt]*(beats_per_measure*beatdiv)-piano_start)*PIANOROLL_CELLWIDTH, PIANOROLL_Y-(j*PIANOROLL_CELLHEIGHT));
glEnd();
glDisable(GL_LINE_STIPPLE);
}
// draw markers for beats and measures
if (((coct+PIANOROLL_OCTAVES)*12)<MAX_NOTE) {
lineheight=PIANOROLL_OCTAVES*12;
} else {
lineheight=PIANOROLL_OCTAVES*12 - (((coct+PIANOROLL_OCTAVES)*12)-MAX_NOTE);
}
lineheight*=PIANOROLL_CELLHEIGHT;
for(i=0,j=piano_start;j<(pattlen[cpatt]*(beats_per_measure*beatdiv)+1);i++,j++) {
glColor4f(0.2, 0.2, 0.2, 0.8);
if ((j%beatdiv)==0) {
// beat
glColor4f(0.5, 0.5, 0.5, 0.8);
}
int b=beats_per_measure*beatdiv;
if ((j%b)==0 && j<(pattlen[cpatt]*b)) {
// measure
sprintf(tmps, "%1d", (j/(beats_per_measure*beatdiv)));
render_text(tmps, 2.5+PIANOROLL_X+(i*PIANOROLL_CELLWIDTH), round(PIANOROLL_Y+PIANOROLL_CELLHEIGHT), 2, 0xffa0a0a0, 0);
glColor4f(0.7, 0.7, 0.7, 0.8);
}
glEnable(GL_LINE_STIPPLE);
glLineStipple(1, 0xaaaa);
glBegin(GL_LINES);
glVertex2f(PIANOROLL_X+i*PIANOROLL_CELLWIDTH, round(PIANOROLL_Y+PIANOROLL_CELLHEIGHT));
glVertex2f(PIANOROLL_X+i*PIANOROLL_CELLWIDTH, round(PIANOROLL_Y-lineheight)); //(PIANOROLL_OCTAVES*12)*PIANOROLL_CELLHEIGHT)));
glEnd();
glDisable(GL_LINE_STIPPLE);
}
// draw the playing position if pattern is playing
if (audiomode==AUDIOMODE_PATTERNPLAY) {
ticks=playpos / (OUTPUTFREQ/(bpm*256/60)); // calc tick from sample index
if ( (ticks>>6)>=piano_start && (ticks>>6)<(pattlen[cpatt]*(beats_per_measure*beatdiv)) ) // TODO: test if pos > pianostart+rollwidth
{
// within bounds
i=(ticks>>6)-piano_start;
glColor4f(1.0, 1.0, 1.0, 1.0);
glBegin(GL_LINES);
glVertex2f(PIANOROLL_X+i*PIANOROLL_CELLWIDTH, round(PIANOROLL_Y+PIANOROLL_CELLHEIGHT));
glVertex2f(PIANOROLL_X+i*PIANOROLL_CELLWIDTH, round(PIANOROLL_Y-((PIANOROLL_OCTAVES*12)*PIANOROLL_CELLHEIGHT)));
glEnd();
}
}
// draw the notes to the piano roll
for(i=0,j=piano_start;j<(pattlen[cpatt]*(beats_per_measure*beatdiv));i++,j++) {
n=pattdata[cpatt][j] & 0xff; // take only the low byte
l=(pattdata[cpatt][j]&NOTE_LEGATO) ? 0 : 1; // if legato, extend note for a pixel left
if (n>0) { // todo: fill with -1 instead as 0 is a valid midi note
if ( n>=(coct*12) && n<((coct+PIANOROLL_OCTAVES)*12)) {
// on the visible three octaves - plot it
glColor4ub(0xb0, 0x55, 0x00, 0xff);
glBegin(GL_QUADS);
glVertex2f(l+PIANOROLL_X+i*PIANOROLL_CELLWIDTH, PIANOROLL_Y-1-(n-coct*12)*PIANOROLL_CELLHEIGHT);
glVertex2f(PIANOROLL_X+(i+1)*PIANOROLL_CELLWIDTH, PIANOROLL_Y-1-(n-coct*12)*PIANOROLL_CELLHEIGHT);
glVertex2f(PIANOROLL_X+(i+1)*PIANOROLL_CELLWIDTH, PIANOROLL_Y-(n-coct*12+1)*PIANOROLL_CELLHEIGHT);
glVertex2f(l+PIANOROLL_X+i*PIANOROLL_CELLWIDTH, PIANOROLL_Y-(n-coct*12+1)*PIANOROLL_CELLHEIGHT);
glEnd();
if (pattdata[cpatt][j]&NOTE_ACCENT) {
// draw the accent mark
render_text(">",
l+PIANOROLL_X+i*PIANOROLL_CELLWIDTH+1,
PIANOROLL_Y-2-(n-coct*12+1)*PIANOROLL_CELLHEIGHT,
2, 0x000000ff, 0);
render_text(">",
l+PIANOROLL_X+i*PIANOROLL_CELLWIDTH,
PIANOROLL_Y-2-(n-coct*12+1)*PIANOROLL_CELLHEIGHT,
2, 0xffffffff, 0);
}
}
}
}
// draw the note highlighted by cursor
if (piano_hover >= 0) {
n=pattdata[cpatt][piano_start+piano_hover]&0xff;
if (n>0 && piano_note==n) {
j=piano_hover;
if (pattdata[cpatt][piano_start+j]&NOTE_LEGATO) {
// search backwards to find start of note
while (pattdata[cpatt][piano_start+j]&NOTE_LEGATO) j--;
}
for(l=1; pattdata[cpatt][piano_start+j+l]&NOTE_LEGATO; l++);
glColor4f(0.8, 0.8, 0.8, 0.8);
glEnable(GL_LINE_STIPPLE);
glLineStipple(1, 0x3333);
glBegin(GL_LINE_LOOP);
glVertex2f(1+PIANOROLL_X+j*PIANOROLL_CELLWIDTH, PIANOROLL_Y-1-(n-coct*12)*PIANOROLL_CELLHEIGHT);
glVertex2f(PIANOROLL_X+(j+l)*PIANOROLL_CELLWIDTH, PIANOROLL_Y-1-(n-coct*12)*PIANOROLL_CELLHEIGHT);
glVertex2f(PIANOROLL_X+(j+l)*PIANOROLL_CELLWIDTH, PIANOROLL_Y-(n-coct*12+1)*PIANOROLL_CELLHEIGHT);
glVertex2f(1+PIANOROLL_X+j*PIANOROLL_CELLWIDTH, PIANOROLL_Y-(n-coct*12+1)*PIANOROLL_CELLHEIGHT);
glEnd();
glDisable(GL_LINE_STIPPLE);
}
}
// drag an existing note up or down
if (piano_porta_drag >= 0) {
n=pattdata[cpatt][piano_start+piano_porta_drag];
glColor4ub(0xc0, 0xc0, 0xc0, 0x6f);
glBegin(GL_QUADS);
glVertex2f(1+PIANOROLL_X+piano_porta_drag*PIANOROLL_CELLWIDTH, PIANOROLL_Y-1-(n-coct*12)*PIANOROLL_CELLHEIGHT);
glVertex2f(PIANOROLL_X+(piano_porta_drag+piano_porta_drag_len)*PIANOROLL_CELLWIDTH, PIANOROLL_Y-1-(n-coct*12)*PIANOROLL_CELLHEIGHT);
glVertex2f(PIANOROLL_X+(piano_porta_drag+piano_porta_drag_len)*PIANOROLL_CELLWIDTH, PIANOROLL_Y-(n-coct*12+1)*PIANOROLL_CELLHEIGHT);
glVertex2f(1+PIANOROLL_X+piano_porta_drag*PIANOROLL_CELLWIDTH, PIANOROLL_Y-(n-coct*12+1)*PIANOROLL_CELLHEIGHT);
glEnd();
if (piano_porta_drag_from != pattdata[cpatt][piano_start+piano_porta_drag]) {
n=piano_porta_drag_from;
glColor4ub(0x90, 0x90, 0x90, 0x6f);
glBegin(GL_QUADS);
glVertex2f(1+PIANOROLL_X+piano_porta_drag*PIANOROLL_CELLWIDTH, PIANOROLL_Y-1-(n-coct*12)*PIANOROLL_CELLHEIGHT);
glVertex2f(PIANOROLL_X+(piano_porta_drag+piano_porta_drag_len)*PIANOROLL_CELLWIDTH, PIANOROLL_Y-1-(n-coct*12)*PIANOROLL_CELLHEIGHT);
glVertex2f(PIANOROLL_X+(piano_porta_drag+piano_porta_drag_len)*PIANOROLL_CELLWIDTH, PIANOROLL_Y-(n-coct*12+1)*PIANOROLL_CELLHEIGHT);
glVertex2f(1+PIANOROLL_X+piano_porta_drag*PIANOROLL_CELLWIDTH, PIANOROLL_Y-(n-coct*12+1)*PIANOROLL_CELLHEIGHT);
glEnd();
}
}
// draw the new note being dragged onto piano roll
if (piano_drag >= 0) {
n=pattdata[cpatt][piano_start+piano_drag];
glColor4ub(0xc0, 0xc0, 0xc0, 0x6f);
glBegin(GL_QUADS);
glVertex2f(1+PIANOROLL_X+piano_drag*PIANOROLL_CELLWIDTH, PIANOROLL_Y-1-(n-coct*12)*PIANOROLL_CELLHEIGHT);
glVertex2f(PIANOROLL_X+(piano_dragto+1)*PIANOROLL_CELLWIDTH, PIANOROLL_Y-1-(n-coct*12)*PIANOROLL_CELLHEIGHT);
glVertex2f(PIANOROLL_X+(piano_dragto+1)*PIANOROLL_CELLWIDTH, PIANOROLL_Y-(n-coct*12+1)*PIANOROLL_CELLHEIGHT);
glVertex2f(1+PIANOROLL_X+piano_drag*PIANOROLL_CELLWIDTH, PIANOROLL_Y-(n-coct*12+1)*PIANOROLL_CELLHEIGHT);
glEnd();
}
// highlight the note row if a key is currently down
if (kpkeydown >=0 && kpkeydown>=(coct*12) && kpkeydown<((coct+PIANOROLL_OCTAVES)*12)) {
glColor4ub(0xc0, 0xc0, 0xc0, 0x3f);
glBegin(GL_QUADS);
glVertex2f(PIANOROLL_X,
PIANOROLL_Y-1-(kpkeydown-coct*12)*PIANOROLL_CELLHEIGHT);
glVertex2f(PIANOROLL_X+(pattlen[cpatt]*(beats_per_measure*beatdiv)-piano_start)*PIANOROLL_CELLWIDTH,
PIANOROLL_Y-1-(kpkeydown-coct*12)*PIANOROLL_CELLHEIGHT);
glVertex2f(PIANOROLL_X+(pattlen[cpatt]*(beats_per_measure*beatdiv)-piano_start)*PIANOROLL_CELLWIDTH,
PIANOROLL_Y-(kpkeydown-coct*12+1)*PIANOROLL_CELLHEIGHT);
glVertex2f(PIANOROLL_X,
PIANOROLL_Y-(kpkeydown-coct*12+1)*PIANOROLL_CELLHEIGHT);
glEnd();
}
// draw the horizontal slider
draw_hslider(PIANOROLL_X, PIANOROLL_Y+12, (DS_WIDTH-(PIANOROLL_X+6)), 12,
piano_start, (DS_WIDTH-(PIANOROLL_X+4))/PIANOROLL_CELLWIDTH,
pattlen[cpatt]*(beats_per_measure*beatdiv),
slide_hover);
// draw the ui elements on the pattern page
draw_button(14, DS_HEIGHT-14, 16, "<<", patt_ui[B_PREV]);
sprintf(tmps, "%02d", cpatt);
draw_textbox(39, DS_HEIGHT-14, 16, 24, tmps, 0);
draw_button(64, DS_HEIGHT-14, 16, ">>", patt_ui[B_NEXT]);
draw_button(98, DS_HEIGHT-14, 16, "<<", patt_ui[B_SHORTER]);
sprintf(tmps, "%1d meas", (unsigned int)(pattlen[cpatt]));
draw_textbox(139, DS_HEIGHT-14, 16, 56, tmps, 0);
draw_button(180, DS_HEIGHT-14, 16, ">>", patt_ui[B_LONGER]);
draw_button(12, PIANOROLL_Y+15.5, 16, "DN", patt_ui[B_OCTDN]);
draw_button(32, PIANOROLL_Y+15.5, 16, "UP", patt_ui[B_OCTUP]);
draw_button(214, DS_HEIGHT-14, 16, "<<", patt_ui[B_PREVSYN]);
sprintf(tmps, "%02d:%s", csynth[cpatch], patchname[csynth][csynth[cpatch]]);
draw_textbox(322, DS_HEIGHT-14, 16, 188, tmps, patt_ui[B_SYNNAME]);
draw_button(430, DS_HEIGHT-14, 16, ">>", patt_ui[B_NEXTSYN]);
ticks=playpos / (OUTPUTFREQ/(bpm*256/60));
if (audiomode==AUDIOMODE_PATTERNPLAY) {
sprintf(tmps, "%02ld:%02ld", (ticks>>10), ((ticks>>6)&15));
} else {
sprintf(tmps, "play");
}
draw_textbox(482, DS_HEIGHT-14, 16, 42, tmps, patt_ui[B_PATTPLAY]);
draw_button(555, DS_HEIGHT-14, 16, "X", patt_ui[B_PATTCLEAR]);
draw_button(622, DS_HEIGHT-14, 16, "C", patt_ui[B_COPY]);
draw_button(644, DS_HEIGHT-14, 16, "V", patt_ui[B_PASTE]);
if (patt_clipboard_len==0) {
glColor4f(0,0,0,0.4f);
glBegin(GL_QUADS);
glVertex2f(644-8, (DS_HEIGHT-14)-8); glVertex2f(644+8, (DS_HEIGHT-14)-8);
glVertex2f(644+8, (DS_HEIGHT-14)+8); glVertex2f(644-8, (DS_HEIGHT-14)+8);
glEnd();
}
}