source: buchla-68k/ram/wsdsp.c@ 6262b5c

Last change on this file since 6262b5c was 6262b5c, checked in by Thomas Lopatic <thomas@…>, 7 years ago

Added include files for global functions and variables.
  • Property mode set to 100644
File size: 11.0 KB
Line 
1/*
2 =============================================================================
3 wsdsp.c -- MIDAS waveshape editor display driver
4 Version 35 -- 1988-09-09 -- D.N. Lynx Crowe
5 =============================================================================
6*/
7
8#include "all.h"
9
10/* things defined elsewhere */
11
12extern uint16_t exp_c(uint16_t c);
13
14extern void (*point)(int16_t x, int16_t y, int16_t pen);
15
16extern uint16_t *obj0;
17
18extern int8_t bfs[];
19
20extern int8_t *wdbxlb0[];
21extern int8_t *wdbxlb1[];
22
23extern int16_t wdbox[][8];
24
25extern struct instdef vbufs[];
26
27/*
28
29*/
30
31extern int16_t curinst;
32extern int16_t curvce;
33extern int16_t curwave; /* current waveshape library slot */
34extern int16_t curwdth; /* current waveshape cursor width */
35extern int16_t curwfnl; /* current waveshape final value */
36extern int16_t curwhrm; /* current waveshape harmonic number */
37extern int16_t curwhrv; /* current waveshape harmonic value */
38extern int16_t curwpnt; /* current waveshape point number */
39extern int16_t curwoff; /* current waveshape offset value */
40extern int16_t curwslt; /* current waveshape instrument slot */
41extern int16_t cxval;
42extern int16_t cyval;
43extern int16_t lstwoff;
44extern int16_t lstwpnt;
45extern int16_t stccol;
46extern int16_t stcrow;
47extern int16_t wpntsv; /* waveshape point selection state variable */
48extern int16_t wplast;
49extern int16_t wvlast;
50
51extern int16_t vmtab[NUMHARM]; /* harmonic table */
52extern int16_t wsbuf[NUMWPCAL]; /* waveshape generation buffer */
53
54extern int32_t vknm[NUMHARM][NUMWPCAL]; /* scaled harmonics */
55
56extern uint16_t *waveob; /* waveshape display object pointer */
57
58extern int16_t wsnmod[12][2]; /* waveshape number or data modified */
59
60extern struct wstbl wslib[NUMWAVS]; /* waveshape library */
61
62extern struct octent *wdoct; /* object control table pointer */
63
64/* forward references */
65
66void wdpoint(int16_t x, int16_t y, int16_t pen);
67
68extern void arcurs(uint16_t icolor);
69extern void clrwsa(void);
70extern void dswap(void);
71extern void itcini(uint16_t color);
72extern void itcpos(int16_t row, int16_t col);
73extern void newws(void);
74extern void setgc(int16_t xv, int16_t yv);
75extern void updfpu(void);
76extern void vsndpal(int16_t pp[16][3]);
77
78/*
79
80*/
81
82int16_t wavpal[16][3] = { /* waveshape display color palette */
83
84 {0, 0, 0}, /* 0 */
85 {3, 3, 3}, /* 1 */
86 {2, 2, 2}, /* 2 */
87 {0, 1, 1}, /* 3 (was 0, 1, 0) */
88 {1, 0, 1}, /* 4 */
89 {0, 1, 1}, /* 5 (was 0, 1, 0) */
90 {2, 1, 2}, /* 6 */
91 {0, 3, 0}, /* 7 */
92 {2, 0, 0}, /* 8 */
93 {2, 0, 2}, /* 9 */
94 {0, 0, 0}, /* 10 */
95 {2, 3, 3}, /* 11 */
96 {3, 3, 0}, /* 12 */
97 {3, 0, 0}, /* 13 */
98 {0, 0, 1}, /* 14 (was 0, 0, 2) */
99 {0, 0, 3} /* 15 */
100};
101
102/*
103
104*/
105
106/*
107 =============================================================================
108 advwcur() -- advance the waveshape display text cursor
109 =============================================================================
110*/
111
112void advwcur(void)
113{
114 register int16_t newcol;
115
116 newcol = stccol + 1;
117
118 if (newcol LE cfetp->frcol)
119 itcpos(stcrow, newcol);
120}
121
122/*
123
124*/
125
126/*
127 =============================================================================
128 hdraw(h) -- draw harmonic 'h' for the current waveshape
129 =============================================================================
130*/
131
132void hdraw(int16_t *hv, int16_t h)
133{
134 register int16_t bc, bx, by, j;
135
136 bx = (h << 4) + 4;
137
138 if (hv[h] < 0) {
139
140 by = WBOFF - ((-hv[h] * WBSF1) / WBSF2);
141 bc = WBCN;
142
143 } else {
144
145 by = WBOFF - ((hv[h] * WBSF1) / WBSF2);
146 bc = WBCP;
147 }
148
149 for (j = 0; j < 8; j++) {
150
151 lseg(bx, WBOFF, bx, by, bc);
152 ++bx;
153 }
154}
155
156/*
157
158*/
159
160/*
161 =============================================================================
162 dsws() -- display the current waveshape
163 =============================================================================
164*/
165
166void dsws(int16_t how)
167{
168 register struct instdef *ip;
169 register int16_t *fv, *hv, *ov;
170 register int16_t i;
171 int16_t cx;
172
173 cx = exp_c(wdbox[0][0]);
174
175 ip = &vbufs[curvce];
176 fv = curwslt ? &ip->idhwvbf : &ip->idhwvaf;
177 ov = curwslt ? &ip->idhwvbo : &ip->idhwvao;
178 hv = curwslt ? &ip->idhwvbh : &ip->idhwvah;
179
180 point = wdpoint;
181
182 if (v_regs[5] & 0x0180)
183 vbank(0);
184
185 if (how)
186 vbfill4(waveob, 128, wdbox[0][0], wdbox[0][1],
187 wdbox[0][2], wdbox[0][3], cx);
188
189 lseg(1, 133, 510, 133, WZBC); /* draw the zero line and ... */
190 lseg(1, (WPOFF << 1), 510, (WPOFF << 1), WZBC); /* ... bottom limit */
191
192 for (i = 0; i < NUMHARM; i++) /* draw the harmonics */
193 hdraw(hv, i);
194
195 for (i = 0; i < NUMWPNT; i++) { /* draw the values */
196
197 /* offset values */
198
199 wdpoint(((2 * i) + 2),
200 (WPOFF - (((ov[i] >> 5) * WPSF1) / WPSF2)), WOVC);
201
202 /* final values */
203
204 wdpoint(((2 * i) + 2),
205 (WPOFF - (((fv[i] >> 5) * WPSF1) / WPSF2)), WFVC);
206 }
207}
208
209/*
210
211*/
212
213/*
214 =============================================================================
215 wdswin() -- display a window
216 =============================================================================
217*/
218
219void wdswin(int16_t n)
220{
221 register int16_t cx, wval;
222 register int8_t wsgn;
223
224 cx = wdbox[n][5];
225 cx |= cx << 4;
226 cx |= cx << 8;
227
228 /* first, fill the box with the background color */
229
230 if (v_regs[5] & 0x0180)
231 vbank(0);
232
233 vbfill4(waveob, 128, wdbox[n][0], wdbox[n][1], wdbox[n][2],
234 wdbox[n][3], cx);
235
236 /* put in the box label */
237
238 tsplot4(waveob, 64, wdbox[n][4], wdbox[n][6], wdbox[n][7],
239 wdbxlb0[n], 14);
240
241 tsplot4(waveob, 64, wdbox[n][4], wdbox[n][6] + 1, wdbox[n][7],
242 wdbxlb1[n], 14);
243
244/*
245
246*/
247 switch (n) { /* final text - overlays above stuff */
248
249 case 0: /* points and bars */
250
251 dsws(0);
252 return;
253
254 case 2: /* waveshape - voice - instrument - slot */
255
256 sprintf(bfs, "%02d", curwave + 1);
257 tsplot4(waveob, 64,
258 exp_c(wsnmod[curvce][curwslt] ? WS_CHGC : wdbox[n][4]),
259 wdbox[n][6], wdbox[n][7] + WAVE_OFF, bfs, 14);
260
261 sprintf(bfs, "%02d", curvce + 1);
262 tsplot4(waveob, 64, wdbox[n][4], wdbox[n][6],
263 wdbox[n][7] + WVCE_OFF, bfs, 14);
264
265 sprintf(bfs, "%02d", curinst);
266 tsplot4(waveob, 64, wdbox[n][4], wdbox[n][6] + 1,
267 wdbox[n][7] + WINS_OFF, bfs, 14);
268
269 sprintf(bfs, "%c", curwslt + 'A');
270 tsplot4(waveob, 64, wdbox[n][4], wdbox[n][6] + 1,
271 wdbox[n][7] + WSLT_OFF, bfs, 14);
272
273 return;
274
275/*
276
277*/
278 case 4: /* point - offset - width - final */
279
280 sprintf(bfs, "%03d", curwpnt);
281 tsplot4(waveob, 64, wdbox[n][4], wdbox[n][6],
282 wdbox[n][7] + WPNT_OFF, bfs, 14);
283
284 if (curwoff < 0) {
285
286 wval = - curwoff;
287 wsgn = '-';
288
289 } else {
290
291 wval = curwoff;
292 wsgn = '+';
293 }
294
295 sprintf(bfs, "%c%04d", wsgn, wval);
296 tsplot4(waveob, 64, wdbox[n][4], wdbox[n][6],
297 wdbox[n][7] + WOFF_OFF, bfs, 14);
298
299 if (curwdth EQ NUMWIDS) {
300
301 tsplot4(waveob, 64, wdbox[n][4], wdbox[n][6] + 1,
302 wdbox[n][7], "Interp", 14);
303
304 } else {
305
306 tsplot4(waveob, 64, wdbox[n][4], wdbox[n][6] + 1,
307 wdbox[n][7], "Width", 14);
308
309 sprintf(bfs, "%01d", curwdth);
310 tsplot4(waveob, 64, wdbox[n][4], wdbox[n][6] + 1,
311 wdbox[n][7] + WDTH_OFF, bfs, 14);
312 }
313
314 if (curwfnl < 0) {
315
316 wval = - curwfnl;
317 wsgn = '-';
318
319 } else {
320
321 wval = curwfnl;
322 wsgn = '+';
323 }
324
325 sprintf(bfs, "%c%04d", wsgn, wval);
326 tsplot4(waveob, 64, wdbox[n][4], wdbox[n][6] + 1,
327 wdbox[n][7] + WFNL_OFF, bfs, 14);
328
329 return;
330/*
331
332*/
333 case 5: /* harmonic - value */
334
335 sprintf(bfs, "%02d", curwhrm + 1);
336 tsplot4(waveob, 64, wdbox[n][4], wdbox[n][6],
337 wdbox[n][7] + WHRM_OFF, bfs, 14);
338
339 if (curwhrv < 0) {
340
341 wval = - curwhrv;
342 wsgn = '-';
343
344 } else {
345
346 wval = curwhrv;
347 wsgn = '+';
348 }
349
350 sprintf(bfs, "%c%03d", wsgn, wval);
351 tsplot4(waveob, 64, wdbox[n][4], wdbox[n][6] + 1,
352 wdbox[n][7] + WHRV_OFF, bfs, 14);
353
354 return;
355
356 }
357}
358
359/*
360
361*/
362
363/*
364 =============================================================================
365 wwins() -- display all waveshape editor windows
366 =============================================================================
367*/
368
369void wwins(void)
370{
371 register int16_t i;
372
373 for (i = 0; i < 6; i++)
374 wdswin(i);
375}
376
377/*
378 =============================================================================
379 wdpoint() -- plot a point for the lseg function
380 =============================================================================
381*/
382
383void wdpoint(int16_t x, int16_t y, int16_t pen)
384{
385 if (v_regs[5] & 0x0180)
386 vbank(0);
387
388 vputp(wdoct, x, y, pen);
389}
390
391/*
392
393*/
394
395/*
396 =============================================================================
397 wdbord() -- draw the border for the waveshape display
398 =============================================================================
399*/
400
401void wdbord(void)
402{
403 point = wdpoint;
404
405 lseg( 0, 0, 511, 0, WBORD); /* outer border */
406 lseg(511, 0, 511, 349, WBORD);
407 lseg(511, 349, 0, 349, WBORD);
408 lseg( 0, 349, 0, 0, WBORD);
409
410 lseg( 0, 308, 511, 308, WBORD); /* windows - H lines */
411 lseg(511, 321, 0, 321, WBORD);
412
413 lseg(175, 322, 175, 349, WBORD); /* windows - V lines */
414 lseg(231, 322, 231, 349, WBORD);
415 lseg(399, 322, 399, 349, WBORD);
416}
417
418/*
419
420*/
421
422/*
423 =============================================================================
424 clrws() -- initialize waveshape to null values
425 =============================================================================
426*/
427
428void clrws(void)
429{
430 register struct instdef *ip;
431
432 ip = &vbufs[curvce];
433
434 if (curwslt) {
435
436 memsetw(ip->idhwvbh, 0, NUMHARM);
437 memsetw(ip->idhwvbo, 0, NUMWPNT);
438 memsetw(ip->idhwvbf, 0, NUMWPNT);
439
440 } else {
441
442 memsetw(ip->idhwvah, 0, NUMHARM);
443 memsetw(ip->idhwvao, 0, NUMWPNT);
444 memsetw(ip->idhwvaf, 0, NUMWPNT);
445 }
446
447 clrwsa();
448
449 lstwpnt = wplast = curwpnt;
450
451 lstwoff = wvlast = curwfnl = curwoff = 0;
452
453 curwhrv = 0;
454
455 updfpu(); /* update the FPU */
456 wsnmod[curvce][curwslt] = TRUE; /* tag WS as modified */
457}
458
459/*
460
461*/
462
463/*
464 =============================================================================
465 iniwslb() -- initialize waveshape library
466 =============================================================================
467*/
468
469void iniwslb(void)
470{
471 register int16_t i, j;
472
473 memsetw(wsnmod, FALSE, (sizeof wsnmod) / 2);
474
475 for (i = 0; i < NUMWAVS; i++) {
476
477 for (j = 0; j < NUMWPNT; j++) {
478
479 wslib[i].final[j] = ((j + 1) << 8) ^ 0x8000;
480 wslib[i].offset[j] = ((j + 1) << 8) ^ 0x8000;
481 }
482
483 memsetw(wslib[i].harmon, 0, NUMHARM); /* zero harmonics */
484 }
485}
486
487/*
488
489*/
490
491/*
492 =============================================================================
493 wsdsp() -- put up the waveshape display
494 =============================================================================
495*/
496
497void wsdsp(void)
498{
499 waveob = &v_score[0]; /* setup object pointer */
500 obj0 = &v_curs0[0]; /* setup cursor object pointer */
501 wdoct = &v_obtab[WAVEOBJ]; /* setup object control table pointer */
502
503 wpntsv = 0; /* point selection state = unselected */
504 newws(); /* set editing variables */
505
506 dswap(); /* initialize display */
507
508 if (v_regs[5] & 0x0180)
509 vbank(0);
510
511 memsetw(waveob, 0, 32767);
512 memsetw(waveob+32767L, 0, 12033);
513
514 SetObj(WAVEOBJ, 0, 0, waveob, 512, 350, 0, 0, WAVEFL, -1);
515 SetObj( 0, 0, 1, obj0, 16, 16, WCURX, WCURY, OBFL_00, -1);
516
517 arcurs(WDCURS); /* setup arrow cursor object */
518 itcini(WDCURS); /* setup text cursor object */
519
520 wdbord(); /* draw the border */
521 wwins();
522
523 SetPri(WAVEOBJ, WAVEPRI);
524 SetPri(0, GCPRI);
525 setgc(WCURX, WCURY); /* display the graphic cursor */
526
527 vsndpal(wavpal); /* send the palette */
528}
529
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