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
|
#include <dolphin/dolphin.h>
#include <dolphin/ax.h>
#include <dolphin/axfx.h>
#include "__axfx.h"
static f32 rsmpTab12khz[512] = {
0.097503662109f, 0.802215576172f, 0.101593017578f, -0.000976562500f, 0.093505859375f,
0.802032470703f, 0.105804443359f, -0.001037597656f, 0.089599609375f, 0.801696777344f,
0.110107421875f, -0.001159667969f, 0.085784912109f, 0.801177978516f, 0.114471435547f,
-0.001281738281f, 0.082031250000f, 0.800476074219f, 0.118927001953f, -0.001403808594f,
0.078369140625f, 0.799621582031f, 0.123474121094f, -0.001525878906f, 0.074798583984f,
0.798614501953f, 0.128143310547f, -0.001647949219f, 0.071350097656f, 0.797424316406f,
0.132873535156f, -0.001770019531f, 0.067962646484f, 0.796051025391f, 0.137695312500f,
-0.001922607422f, 0.064697265625f, 0.794525146484f, 0.142608642578f, -0.002044677734f,
0.061492919922f, 0.792846679688f, 0.147613525391f, -0.002197265625f, 0.058349609375f,
0.790985107422f, 0.152709960938f, -0.002319335938f, 0.055328369141f, 0.788940429688f,
0.157897949219f, -0.002471923828f, 0.052368164062f, 0.786743164062f, 0.163177490234f,
-0.002655029297f, 0.049499511719f, 0.784423828125f, 0.168518066406f, -0.002807617188f,
0.046722412109f, 0.781890869141f, 0.173980712891f, -0.002990722656f, 0.044006347656f,
0.779205322266f, 0.179504394531f, -0.003143310547f, 0.041412353516f, 0.776367187500f,
0.185119628906f, -0.003326416016f, 0.038879394531f, 0.773376464844f, 0.190826416016f,
-0.003509521484f, 0.036407470703f, 0.770233154297f, 0.196594238281f, -0.003692626953f,
0.034027099609f, 0.766937255859f, 0.202484130859f, -0.003875732422f, 0.031738281250f,
0.763488769531f, 0.208435058594f, -0.004058837891f, 0.029510498047f, 0.759857177734f,
0.214447021484f, -0.004272460938f, 0.027374267578f, 0.756103515625f, 0.220550537109f,
-0.004455566406f, 0.025299072266f, 0.752197265625f, 0.226745605469f, -0.004669189453f,
0.023315429688f, 0.748168945312f, 0.233001708984f, -0.004852294922f, 0.021392822266f,
0.743988037109f, 0.239318847656f, -0.005065917969f, 0.019561767578f, 0.739654541016f,
0.245727539062f, -0.005310058594f, 0.017791748047f, 0.735198974609f, 0.252197265625f,
-0.005523681641f, 0.016052246094f, 0.730590820312f, 0.258728027344f, -0.005706787109f,
0.014404296875f, 0.725860595703f, 0.265350341797f, -0.005920410156f, 0.012817382812f,
0.721008300781f, 0.272033691406f, -0.006164550781f, 0.011322021484f, 0.716003417969f,
0.278778076172f, -0.006378173828f, 0.009887695312f, 0.710906982422f, 0.285583496094f,
-0.006561279297f, 0.008514404297f, 0.705657958984f, 0.292449951172f, -0.006774902344f,
0.007202148438f, 0.700317382812f, 0.299346923828f, -0.007019042969f, 0.005920410156f,
0.694854736328f, 0.306335449219f, -0.007232666016f, 0.004699707031f, 0.689270019531f,
0.313385009766f, -0.007415771484f, 0.003570556641f, 0.683563232422f, 0.320465087891f,
-0.007629394531f, 0.002471923828f, 0.677734375000f, 0.327606201172f, -0.007873535156f,
0.001434326172f, 0.671844482422f, 0.334777832031f, -0.008087158203f, 0.000457763672f,
0.665832519531f, 0.341979980469f, -0.008270263672f, -0.000488281250f, 0.659729003906f,
0.349243164062f, -0.008453369141f, -0.001342773438f, 0.653533935547f, 0.356567382812f,
-0.008636474609f, -0.002166748047f, 0.647216796875f, 0.363891601562f, -0.008850097656f,
-0.002960205078f, 0.640838623047f, 0.371276855469f, -0.009033203125f, -0.003692626953f,
0.634338378906f, 0.378692626953f, -0.009216308594f, -0.004364013672f, 0.627777099609f,
0.386138916016f, -0.009338378906f, -0.004974365234f, 0.621154785156f, 0.393615722656f,
-0.009490966797f, -0.005584716797f, 0.614440917969f, 0.401092529297f, -0.009643554688f,
-0.006134033203f, 0.607635498047f, 0.408599853516f, -0.009796142578f, -0.006652832031f,
0.600769042969f, 0.416107177734f, -0.009918212891f, -0.007141113281f, 0.593841552734f,
0.423645019531f, -0.010009765625f, -0.007568359375f, 0.586853027344f, 0.431213378906f,
-0.010131835938f, -0.007965087891f, 0.579772949219f, 0.438751220703f, -0.010223388672f,
-0.008331298828f, 0.572662353516f, 0.446319580078f, -0.010284423828f, -0.008666992188f,
0.565521240234f, 0.453887939453f, -0.010345458984f, -0.008972167969f, 0.558319091797f,
0.461456298828f, -0.010406494141f, -0.009216308594f, 0.551055908203f, 0.469024658203f,
-0.010406494141f, -0.009460449219f, 0.543731689453f, 0.476593017578f, -0.010406494141f,
-0.009674072266f, 0.536407470703f, 0.484130859375f, -0.010375976562f, -0.009857177734f,
0.529022216797f, 0.491668701172f, -0.010375976562f, -0.010009765625f, 0.521606445312f,
0.499176025391f, -0.010314941406f, -0.010131835938f, 0.514160156250f, 0.506683349609f,
-0.010253906250f, -0.010253906250f, 0.506683349609f, 0.514160156250f, -0.010131835938f,
-0.010314941406f, 0.499176025391f, 0.521606445312f, -0.010009765625f, -0.010375976562f,
0.491668701172f, 0.529022216797f, -0.009857177734f, -0.010375976562f, 0.484130859375f,
0.536407470703f, -0.009674072266f, -0.010406494141f, 0.476593017578f, 0.543731689453f,
-0.009460449219f, -0.010406494141f, 0.469024658203f, 0.551055908203f, -0.009216308594f,
-0.010406494141f, 0.461456298828f, 0.558319091797f, -0.008972167969f, -0.010345458984f,
0.453887939453f, 0.565521240234f, -0.008666992188f, -0.010284423828f, 0.446319580078f,
0.572662353516f, -0.008331298828f, -0.010223388672f, 0.438751220703f, 0.579772949219f,
-0.007965087891f, -0.010131835938f, 0.431213378906f, 0.586853027344f, -0.007568359375f,
-0.010009765625f, 0.423645019531f, 0.593841552734f, -0.007141113281f, -0.009918212891f,
0.416107177734f, 0.600769042969f, -0.006652832031f, -0.009796142578f, 0.408599853516f,
0.607635498047f, -0.006134033203f, -0.009643554688f, 0.401092529297f, 0.614440917969f,
-0.005584716797f, -0.009490966797f, 0.393615722656f, 0.621154785156f, -0.004974365234f,
-0.009338378906f, 0.386138916016f, 0.627777099609f, -0.004364013672f, -0.009216308594f,
0.378692626953f, 0.634338378906f, -0.003692626953f, -0.009033203125f, 0.371276855469f,
0.640838623047f, -0.002960205078f, -0.008850097656f, 0.363891601562f, 0.647216796875f,
-0.002166748047f, -0.008636474609f, 0.356567382812f, 0.653533935547f, -0.001342773438f,
-0.008453369141f, 0.349243164062f, 0.659729003906f, -0.000488281250f, -0.008270263672f,
0.341979980469f, 0.665832519531f, 0.000457763672f, -0.008087158203f, 0.334777832031f,
0.671844482422f, 0.001434326172f, -0.007873535156f, 0.327606201172f, 0.677734375000f,
0.002471923828f, -0.007629394531f, 0.320465087891f, 0.683563232422f, 0.003570556641f,
-0.007415771484f, 0.313385009766f, 0.689270019531f, 0.004699707031f, -0.007232666016f,
0.306335449219f, 0.694854736328f, 0.005920410156f, -0.007019042969f, 0.299346923828f,
0.700317382812f, 0.007202148438f, -0.006774902344f, 0.292449951172f, 0.705657958984f,
0.008514404297f, -0.006561279297f, 0.285583496094f, 0.710906982422f, 0.009887695312f,
-0.006378173828f, 0.278778076172f, 0.716003417969f, 0.011322021484f, -0.006164550781f,
0.272033691406f, 0.721008300781f, 0.012817382812f, -0.005920410156f, 0.265350341797f,
0.725860595703f, 0.014404296875f, -0.005706787109f, 0.258728027344f, 0.730590820312f,
0.016052246094f, -0.005523681641f, 0.252197265625f, 0.735198974609f, 0.017791748047f,
-0.005310058594f, 0.245727539062f, 0.739654541016f, 0.019561767578f, -0.005065917969f,
0.239318847656f, 0.743988037109f, 0.021392822266f, -0.004852294922f, 0.233001708984f,
0.748168945312f, 0.023315429688f, -0.004669189453f, 0.226745605469f, 0.752197265625f,
0.025299072266f, -0.004455566406f, 0.220550537109f, 0.756103515625f, 0.027374267578f,
-0.004272460938f, 0.214447021484f, 0.759857177734f, 0.029510498047f, -0.004058837891f,
0.208435058594f, 0.763488769531f, 0.031738281250f, -0.003875732422f, 0.202484130859f,
0.766937255859f, 0.034027099609f, -0.003692626953f, 0.196594238281f, 0.770233154297f,
0.036407470703f, -0.003509521484f, 0.190826416016f, 0.773376464844f, 0.038879394531f,
-0.003326416016f, 0.185119628906f, 0.776367187500f, 0.041412353516f, -0.003143310547f,
0.179504394531f, 0.779205322266f, 0.044006347656f, -0.002990722656f, 0.173980712891f,
0.781890869141f, 0.046722412109f, -0.002807617188f, 0.168518066406f, 0.784423828125f,
0.049499511719f, -0.002655029297f, 0.163177490234f, 0.786743164062f, 0.052368164062f,
-0.002471923828f, 0.157897949219f, 0.788940429688f, 0.055328369141f, -0.002319335938f,
0.152709960938f, 0.790985107422f, 0.058349609375f, -0.002197265625f, 0.147613525391f,
0.792846679688f, 0.061492919922f, -0.002044677734f, 0.142608642578f, 0.794525146484f,
0.064697265625f, -0.001922607422f, 0.137695312500f, 0.796051025391f, 0.067962646484f,
-0.001770019531f, 0.132873535156f, 0.797424316406f, 0.071350097656f, -0.001647949219f,
0.128143310547f, 0.798614501953f, 0.074798583984f, -0.001525878906f, 0.123474121094f,
0.799621582031f, 0.078369140625f, -0.001403808594f, 0.118927001953f, 0.800476074219f,
0.082031250000f, -0.001281738281f, 0.114471435547f, 0.801177978516f, 0.085784912109f,
-0.001159667969f, 0.110107421875f, 0.801696777344f, 0.089599609375f, -0.001037597656f,
0.105804443359f, 0.802032470703f, 0.093505859375f, -0.000976562500f, 0.101593017578f,
0.802215576172f, 0.097503662109f,
};
const static double i2fMagic = 4503601774854144.0;
// prototypes
static void do_src1(AXFX_CHORUS_SRCINFO* src);
static void do_src2(AXFX_CHORUS_SRCINFO* src);
asm static void do_src1(__REGISTER AXFX_CHORUS_SRCINFO* src) {
nofralloc
stwu r1, -64(r1)
stmw r26, 40(r1)
lwz r4, AXFX_CHORUS_SRCINFO.posLo(src)
lwz r5, AXFX_CHORUS_SRCINFO.posHi(src)
lwz r6, AXFX_CHORUS_SRCINFO.pitchLo(src)
lwz r8, AXFX_CHORUS_SRCINFO.trigger(src)
lwz r7, AXFX_CHORUS_SRCINFO.target(src)
lwz r31, AXFX_CHORUS_SRCINFO.smpBase(src)
lwz r30, AXFX_CHORUS_SRCINFO.dest(src)
lwz r9, AXFX_CHORUS_SRCINFO.old(src)
lis r10, 0x4330
stw r10, 8(r1)
stw r10, 16(r1)
stw r10, 24(r1)
stw r10, 32(r1)
lis r10, i2fMagic@ha
lfd f9, i2fMagic@l(r10)
slwi r10, r5, 2
lwz r11, 0(r9)
lwz r29, 4(r9)
lwz r28, 8(r9)
lwzx r27, r31, r10
xoris r11, r11, 0x8000
xoris r29, r29, 0x8000
stw r11, 12(r1)
xoris r28, r28, 0x8000
stw r29, 20(r1)
xoris r27, r27, 0x8000
stw r28, 28(r1)
lfd f1, 8(r1)
stw r27, 36(r1)
lfd f2, 16(r1)
fsubs f1, f1, f9
lfd f3, 24(r1)
fsubs f2, f2, f9
lfd f4, 32(r1)
fsubs f3, f3, f9
fsubs f4, f4, f9
li r26, -4
lis r12, rsmpTab12khz@ha
addi r12, r12, rsmpTab12khz@l
li r9, 160
mtctr r9
L_000000AC:
rlwinm r10, r4, 7, 21, 27
addc r4, r4, r6
add r10, r10, r12
mcrxr cr0
lfs f5, 0(r10)
beq L_000000F4
lfs f6, 4(r10)
fmuls f10, f1, f5
lfs f7, 8(r10)
fmadds f10, f2, f6, f10
lfs f8, 12(r10)
fmadds f10, f3, f7, f10
addi r30, r30, 4
fmadds f10, f4, f8, f10
fctiwz f10, f10
stfiwx f10, r26, r30
bdnz L_000000AC
b L_00000160
L_000000F4:
addi r5, r5, 1
lfs f6, 4(r10)
fmuls f10, f1, f5
cmpw r5, r8
fmr f1, f2
lfs f7, 8(r10)
fmadds f10, f2, f6, f10
fmr f2, f3
lfs f8, 12(r10)
fmadds f10, f3, f7, f10
addi r30, r30, 4
fmr f3, f4
bne+ L_0000012C
mr r5, r7
L_0000012C:
fmadds f10, f4, f8, f10
slwi r9, r5, 2
bdz L_00000158
lwzx r10, r9, r31
fctiwz f10, f10
xoris r10, r10, 0x8000
stw r10, 12(r1)
stfiwx f10, r26, r30
lfd f4, 8(r1)
fsubs f4, f4, f9
b L_000000AC
L_00000158:
fctiwz f10, f10
stfiwx f10, r26, r30
L_00000160:
lwz r9, AXFX_CHORUS_SRCINFO.old(src)
fctiwz f1, f1
fctiwz f2, f2
fctiwz f3, f3
stfiwx f1, r0, r9
addi r10, r9, 4
stfiwx f2, r0, r10
addi r10, r9, 8
stfiwx f3, r0, r10
stw r4, AXFX_CHORUS_SRCINFO.posLo(src)
stw r5, AXFX_CHORUS_SRCINFO.posHi(src)
lmw r26, 40(r1)
addi r1, r1, 64
blr
}
asm static void do_src2(__REGISTER AXFX_CHORUS_SRCINFO* src) {
nofralloc
stwu r1, -64(r1)
stmw r26, 40(r1)
lwz r4, AXFX_CHORUS_SRCINFO.posLo(src)
lwz r5, AXFX_CHORUS_SRCINFO.posHi(src)
lwz r6, AXFX_CHORUS_SRCINFO.pitchLo(src)
lwz r8, AXFX_CHORUS_SRCINFO.trigger(src)
lwz r7, AXFX_CHORUS_SRCINFO.target(src)
lwz r31, AXFX_CHORUS_SRCINFO.smpBase(src)
lwz r30, AXFX_CHORUS_SRCINFO.dest(src)
lwz r9, AXFX_CHORUS_SRCINFO.old(src)
lis r10, 0x4330
stw r10, 8(r1)
stw r10, 16(r1)
stw r10, 24(r1)
stw r10, 32(r1)
lis r10, i2fMagic@ha
lfd f9, i2fMagic@l(r10)
slwi r10, r5, 2
lwz r11, 0(r9)
lwz r29, 4(r9)
lwz r28, 8(r9)
lwzx r27, r31, r10
xoris r11, r11, 0x8000
xoris r29, r29, 0x8000
stw r11, 12(r1)
xoris r28, r28, 0x8000
stw r29, 20(r1)
xoris r27, r27, 0x8000
stw r28, 28(r1)
lfd f1, 8(r1)
stw r27, 36(r1)
lfd f2, 16(r1)
fsubs f1, f1, f9
lfd f3, 24(r1)
fsubs f2, f2, f9
lfd f4, 32(r1)
fsubs f3, f3, f9
fsubs f4, f4, f9
li r26, -4
lis r12, rsmpTab12khz@ha
addi r12, r12, rsmpTab12khz@l
li r9, 160
mtctr r9
L_00000244:
rlwinm r10, r4, 7, 21, 27
addc r4, r4, r6
add r10, r10, r12
mcrxr cr0
addi r5, r5, 1
lfs f5, 0(r10)
beq L_000002C0
lfs f6, 4(r10)
fmuls f10, f1, f5
cmpw r5, r8
fmr f1, f2
lfs f7, 8(r10)
fmadds f10, f2, f6, f10
fmr f2, f3
lfs f8, 12(r10)
fmadds f10, f3, f7, f10
addi r30, r30, 4
fmr f3, f4
bne+ L_00000294
mr r5, r7
L_00000294:
fmadds f10, f4, f8, f10
slwi r9, r5, 2
bdz L_00000344
lwzx r10, r9, r31
fctiwz f10, f10
xoris r10, r10, 0x8000
stw r10, 12(r1)
stfiwx f10, r26, r30
lfd f4, 8(r1)
fsubs f4, f4, f9
b L_00000244
L_000002C0:
cmpw r5, r8
lfs f6, 4(r10)
bne+ L_000002D0
mr r5, r7
L_000002D0:
slwi r11, r5, 2
addi r5, r5, 1
lwzx r29, r11, r31
fmuls f10, f1, f5
cmpw r5, r8
xoris r29, r29, 0x8000
fmr f1, f3
lfs f7, 8(r10)
stw r29, 12(r1)
fmadds f10, f2, f6, f10
lfs f8, 12(r10)
fmadds f10, f3, f7, f10
lfd f3, 8(r1)
fmr f2, f4
addi r30, r30, 4
fsubs f3, f3, f9
bne+ L_00000318
mr r5, r7
L_00000318:
fmadds f10, f4, f8, f10
slwi r9, r5, 2
bdz L_00000344
lwzx r10, r9, r31
fctiwz f10, f10
xoris r10, r10, 0x8000
stw r10, 12(r1)
stfiwx f10, r26, r30
lfd f4, 8(r1)
fsubs f4, f4, f9
b L_00000244
L_00000344:
fctiwz f10, f10
stfiwx f10, r26, r30
lwz r9, AXFX_CHORUS_SRCINFO.old(src)
fctiwz f1, f1
fctiwz f2, f2
fctiwz f3, f3
stfiwx f1, r0, r9
addi r10, r9, 4
stfiwx f2, r0, r10
addi r10, r9, 8
stfiwx f3, r0, r10
stw r4, AXFX_CHORUS_SRCINFO.posLo(src)
stw r5, AXFX_CHORUS_SRCINFO.posHi(src)
lmw r26, 40(r1)
addi r1, r1, 64
blr
}
int AXFXChorusInit(AXFX_CHORUS* c) {
s32* left;
s32* right;
s32* sur;
u32 i;
BOOL old;
ASSERTMSGLINE(1074, c->baseDelay >= 5 && c->baseDelay <= 15 && c->variation >= 0 && c->variation <= 5 && c->period >= 500 && c->period <= 10000, "The value of specified parameter is out of range.");
if (c->baseDelay < 5 || c->baseDelay > 15 || c->variation < 0 || c->variation > 5 || c->period < 500 || c->period > 10000) {
return 0;
}
old = OSDisableInterrupts();
c->work.lastLeft[0] = __AXFXAlloc(0x1680);
ASSERTMSGLINE(0x442, c->work.lastLeft[0], "Can't allocate the memory.");
if (c->work.lastLeft[0] != NULL) {
c->work.lastRight[0] = (void*)(c->work.lastLeft[0] + 0x1E0);
c->work.lastSur[0] = (void*)(c->work.lastRight[0] + 0x1E0);
for (i = 1; i < 3; i++) {
c->work.lastLeft[i] = (void*)&c->work.lastLeft[0][i * 0xA0];
c->work.lastRight[i] = (void*)&c->work.lastRight[0][i * 0xA0];
c->work.lastSur[i] = (void*)&c->work.lastSur[0][i * 0xA0];
}
left = c->work.lastLeft[0];
right = c->work.lastRight[0];
sur = c->work.lastSur[0];
for (i = 0; i < 0x140; i++) {
*left++ = 0;
*right++ = 0;
*sur++ = 0;
}
c->work.currentLast = 1;
c->work.oldLeft[0] = c->work.oldLeft[1] = c->work.oldLeft[2] = c->work.oldLeft[3] = 0;
c->work.oldRight[0] = c->work.oldRight[1] = c->work.oldRight[2] = c->work.oldRight[3] = 0;
c->work.oldSur[0] = c->work.oldSur[1] = c->work.oldSur[2] = c->work.oldSur[3] = 0;
c->work.src.trigger = 0x1E0;
c->work.src.target = 0;
OSRestoreInterrupts(old);
return AXFXChorusSettings(c);
}
OSRestoreInterrupts(old);
return 0;
}
int AXFXChorusShutdown(AXFX_CHORUS* c) {
BOOL old;
old = OSDisableInterrupts();
__AXFXFree(c->work.lastLeft[0]);
OSRestoreInterrupts(old);
return 1;
}
int AXFXChorusSettings(AXFX_CHORUS* c) {
BOOL old;
ASSERTMSGLINE(1159, c->baseDelay >= 5 && c->baseDelay <= 15 && c->variation >= 0 && c->variation <= 5 && c->period >= 500 && c->period <= 10000, "The value of specified parameter is out of range.");
if (c->baseDelay < 5 || c->baseDelay > 15 || c->variation < 0 || c->variation > 5 || c->period < 500 || c->period > 10000) {
return 0;
}
old = OSDisableInterrupts();
c->work.currentPosHi = 0x140 - ((c->baseDelay - 5) << 5);
c->work.currentPosLo = 0;
c->work.currentPosHi = (c->work.currentPosHi + ((c->work.currentLast - 1) * 0xA0/1)) % 480;
c->work.pitchOffsetPeriod = ((c->period / 5) + 1) & ~(1);
c->work.pitchOffsetPeriodCount = c->work.pitchOffsetPeriod >> 1;
c->work.pitchOffset = (c->variation << 0x10) / (c->work.pitchOffsetPeriod * 5);
OSRestoreInterrupts(old);
return 1;
}
void AXFXChorusCallback(AXFX_BUFFERUPDATE* bufferUpdate, AXFX_CHORUS* chorus) {
s32* leftD;
s32* rightD;
s32* surD;
s32* leftS;
s32* rightS;
s32* surS;
u32 i;
u8 nextCurrentLast;
nextCurrentLast = (chorus->work.currentLast + 1) % 3;
leftD = chorus->work.lastLeft[nextCurrentLast];
rightD = chorus->work.lastRight[nextCurrentLast];
surD = chorus->work.lastSur[nextCurrentLast];
leftS = bufferUpdate->left;
rightS = bufferUpdate->right;
surS = bufferUpdate->surround;
for (i = 0; i < 0xA0; i++) {
*leftD++ = *leftS++;
*rightD++ = *rightS++;
*surD++ = *surS++;
}
chorus->work.src.pitchHi = (chorus->work.pitchOffset >> 0x10) + 1;
chorus->work.src.pitchLo = (chorus->work.pitchOffset & 0xFFFF) << 0x10;
if (--chorus->work.pitchOffsetPeriodCount == 0) {
chorus->work.pitchOffsetPeriodCount = chorus->work.pitchOffsetPeriod;
chorus->work.pitchOffset = -chorus->work.pitchOffset;
}
for (i = 0; i < 3; i++) {
chorus->work.src.posHi = chorus->work.currentPosHi;
chorus->work.src.posLo = chorus->work.currentPosLo;
switch (i) {
case 0:
chorus->work.src.smpBase = chorus->work.lastLeft[0];
chorus->work.src.dest = bufferUpdate->left;
chorus->work.src.old = &chorus->work.oldLeft[0];
break;
case 1:
chorus->work.src.smpBase = chorus->work.lastRight[0];
chorus->work.src.dest = bufferUpdate->right;
chorus->work.src.old = &chorus->work.oldRight[0];
break;
case 2:
chorus->work.src.smpBase = chorus->work.lastSur[0];
chorus->work.src.dest = bufferUpdate->surround;
chorus->work.src.old = &chorus->work.oldSur[0];
break;
}
switch(chorus->work.src.pitchHi) {
case 0:
do_src1(&chorus->work.src);
break;
case 1:
do_src2(&chorus->work.src);
break;
}
}
chorus->work.currentPosHi = (chorus->work.src.posHi % 480);
chorus->work.currentPosLo = chorus->work.src.posLo;
chorus->work.currentLast = nextCurrentLast;
}
|
