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reduce size of stereo mix program (atmega88????), decrease lut resolution, improve volume curve

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This commit is contained in:
Jan-Henrik 2020-02-18 01:56:45 +01:00
parent 3189608992
commit 7b0b1e4f08
5 changed files with 218 additions and 417 deletions
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2
stereo_mix/makefile
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@ -18,7 +18,7 @@ PACKAGES = avrlib avrlib/devices stereo_mix
RESOURCES = stereo_mix/resources RESOURCES = stereo_mix/resources
PROGRAMMER = atmelice_isp PROGRAMMER = atmelice_isp
LFUSE = ff LFUSE = ef
HFUSE = d8 HFUSE = d8
EFUSE = 05 EFUSE = 05
LOCK = ff LOCK = ff

564
stereo_mix/resources.cc
View file

@ -32,391 +32,199 @@ const prog_char* const string_table[] = {
}; };
const prog_uint16_t lut_res_linear_to_exp[] PROGMEM = { const prog_uint16_t lut_res_linear_to_exp[] PROGMEM = {
0, 1, 2, 3, 4, 5, 6, 7, 0, 0, 0, 0, 0, 0, 0, 0,
8, 9, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0,
16, 17, 18, 19, 20, 21, 22, 23, 0, 0, 0, 0, 0, 0, 1, 1,
24, 25, 26, 27, 28, 29, 30, 31, 1, 1, 1, 1, 1, 1, 1, 2,
32, 33, 34, 35, 36, 37, 38, 39, 2, 2, 2, 2, 2, 2, 2, 3,
40, 41, 42, 43, 44, 45, 46, 47, 3, 3, 3, 3, 3, 4, 4, 4,
48, 49, 50, 51, 52, 53, 54, 55, 4, 4, 5, 5, 5, 5, 5, 6,
56, 57, 58, 59, 60, 61, 62, 63, 6, 6, 6, 7, 7, 7, 7, 8,
64, 65, 66, 67, 68, 69, 70, 71, 8, 8, 8, 9, 9, 9, 9, 10,
72, 73, 74, 75, 76, 77, 78, 79, 10, 10, 10, 11, 11, 11, 12, 12,
80, 81, 82, 83, 84, 85, 86, 87, 12, 13, 13, 13, 14, 14, 14, 15,
88, 89, 90, 91, 92, 93, 94, 95, 15, 15, 16, 16, 16, 17, 17, 18,
96, 97, 98, 99, 100, 101, 102, 103, 18, 18, 19, 19, 19, 20, 20, 21,
104, 105, 106, 107, 108, 109, 110, 111, 21, 21, 22, 22, 23, 23, 24, 24,
112, 113, 114, 115, 116, 117, 118, 119, 24, 25, 25, 26, 26, 27, 27, 28,
120, 121, 122, 123, 124, 125, 126, 127, 28, 29, 29, 30, 30, 31, 31, 32,
128, 129, 130, 131, 132, 133, 134, 135, 32, 33, 33, 34, 34, 35, 35, 36,
136, 137, 138, 139, 140, 141, 142, 143, 36, 37, 37, 38, 38, 39, 39, 40,
144, 145, 146, 147, 148, 149, 150, 151, 41, 41, 42, 42, 43, 43, 44, 45,
152, 153, 154, 155, 156, 157, 158, 159, 45, 46, 46, 47, 48, 48, 49, 50,
160, 161, 162, 163, 164, 165, 166, 167, 50, 51, 51, 52, 53, 53, 54, 55,
168, 169, 170, 171, 172, 173, 174, 175, 55, 56, 57, 57, 58, 59, 59, 60,
176, 177, 178, 179, 180, 181, 182, 183, 61, 61, 62, 63, 63, 64, 65, 66,
184, 185, 186, 187, 188, 189, 190, 191, 66, 67, 68, 69, 69, 70, 71, 72,
192, 193, 194, 195, 196, 197, 198, 199, 72, 73, 74, 75, 75, 76, 77, 78,
200, 201, 202, 203, 204, 205, 206, 207, 78, 79, 80, 81, 82, 82, 83, 84,
208, 209, 210, 211, 212, 213, 214, 215, 85, 86, 86, 87, 88, 89, 90, 91,
216, 217, 218, 219, 220, 221, 222, 223, 91, 92, 93, 94, 95, 96, 97, 98,
224, 225, 226, 227, 228, 229, 230, 231, 98, 99, 100, 101, 102, 103, 104, 105,
232, 233, 234, 235, 236, 237, 238, 239, 106, 106, 107, 108, 109, 110, 111, 112,
240, 241, 242, 243, 244, 245, 246, 247, 113, 114, 115, 116, 117, 118, 119, 120,
248, 249, 250, 251, 252, 253, 254, 255, 121, 122, 123, 124, 125, 126, 127, 128,
256, 257, 258, 259, 260, 261, 262, 263, 129, 130, 131, 132, 133, 134, 135, 136,
264, 265, 266, 267, 268, 269, 270, 271, 137, 138, 139, 140, 141, 142, 143, 144,
272, 273, 274, 275, 276, 277, 278, 279, 145, 146, 147, 148, 149, 150, 152, 153,
280, 281, 282, 283, 284, 285, 286, 287, 154, 155, 156, 157, 158, 159, 160, 162,
288, 289, 290, 291, 292, 293, 294, 295, 163, 164, 165, 166, 167, 168, 169, 171,
296, 297, 298, 299, 300, 301, 302, 303, 172, 173, 174, 175, 176, 178, 179, 180,
304, 305, 306, 307, 308, 309, 310, 311, 181, 182, 184, 185, 186, 187, 188, 190,
312, 313, 314, 315, 316, 317, 318, 319, 191, 192, 193, 195, 196, 197, 198, 200,
320, 321, 322, 323, 324, 325, 326, 327, 201, 202, 203, 205, 206, 207, 208, 210,
328, 329, 330, 331, 332, 333, 334, 335, 211, 212, 213, 215, 216, 217, 219, 220,
336, 337, 338, 339, 340, 341, 342, 343, 221, 223, 224, 225, 227, 228, 229, 231,
344, 345, 346, 347, 348, 349, 350, 351, 232, 233, 235, 236, 237, 239, 240, 242,
352, 353, 354, 355, 356, 357, 358, 359, 243, 244, 246, 247, 248, 250, 251, 253,
360, 361, 362, 363, 364, 365, 366, 367, 254, 255, 257, 258, 260, 261, 263, 264,
368, 369, 370, 371, 372, 373, 374, 375, 265, 267, 268, 270, 271, 273, 274, 276,
376, 377, 378, 379, 380, 381, 382, 383, 277, 279, 280, 282, 283, 285, 286, 288,
384, 385, 386, 387, 388, 389, 390, 391, 289, 291, 292, 294, 295, 297, 298, 300,
392, 393, 394, 395, 396, 397, 398, 399, 301, 303, 304, 306, 307, 309, 310, 312,
400, 401, 402, 403, 404, 405, 406, 407, 314, 315, 317, 318, 320, 321, 323, 325,
408, 409, 410, 411, 412, 413, 414, 415, 326, 328, 329, 331, 333, 334, 336, 338,
416, 417, 418, 419, 420, 421, 422, 423, 339, 341, 342, 344, 346, 347, 349, 351,
424, 425, 426, 427, 428, 429, 430, 431, 352, 354, 356, 357, 359, 361, 362, 364,
432, 433, 434, 435, 436, 437, 438, 439, 366, 367, 369, 371, 372, 374, 376, 378,
440, 441, 442, 443, 444, 445, 446, 447, 379, 381, 383, 385, 386, 388, 390, 392,
448, 449, 450, 451, 452, 453, 454, 455, 393, 395, 397, 399, 400, 402, 404, 406,
456, 457, 458, 459, 460, 461, 462, 463, 407, 409, 411, 413, 415, 416, 418, 420,
464, 465, 466, 467, 468, 469, 470, 471, 422, 424, 425, 427, 429, 431, 433, 435,
472, 473, 474, 475, 476, 477, 478, 479, 436, 438, 440, 442, 444, 446, 448, 450,
480, 481, 482, 483, 484, 485, 486, 487, 451, 453, 455, 457, 459, 461, 463, 465,
488, 489, 490, 491, 492, 493, 494, 495, 467, 468, 470, 472, 474, 476, 478, 480,
496, 497, 498, 499, 500, 501, 502, 503, 482, 484, 486, 488, 490, 492, 494, 496,
504, 505, 506, 507, 508, 509, 510, 511, 498, 500, 502, 504, 506, 508, 510, 512,
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,
744, 745, 746, 747, 748, 749, 750, 751,
752, 753, 754, 755, 756, 757, 758, 759,
760, 761, 762, 763, 764, 765, 766, 767,
768, 769, 770, 771, 772, 773, 774, 775,
776, 777, 778, 779, 780, 781, 782, 783,
784, 785, 786, 787, 788, 789, 790, 791,
792, 793, 794, 795, 796, 797, 798, 799,
800, 801, 802, 803, 804, 805, 806, 807,
808, 809, 810, 811, 812, 813, 814, 815,
816, 817, 818, 819, 820, 821, 822, 823,
824, 825, 826, 827, 828, 829, 830, 831,
832, 833, 834, 835, 836, 837, 838, 839,
840, 841, 842, 843, 844, 845, 846, 847,
848, 849, 850, 851, 852, 853, 854, 855,
856, 857, 858, 859, 860, 861, 862, 863,
864, 865, 866, 867, 868, 869, 870, 871,
872, 873, 874, 875, 876, 877, 878, 879,
880, 881, 882, 883, 884, 885, 886, 887,
888, 889, 890, 891, 892, 893, 894, 895,
896, 897, 898, 899, 900, 901, 902, 903,
904, 905, 906, 907, 908, 909, 910, 911,
912, 913, 914, 915, 916, 917, 918, 919,
920, 921, 922, 923, 924, 925, 926, 927,
928, 929, 930, 931, 932, 933, 934, 935,
936, 937, 938, 939, 940, 941, 942, 943,
944, 945, 946, 947, 948, 949, 950, 951,
952, 953, 954, 955, 956, 957, 958, 959,
960, 961, 962, 963, 964, 965, 966, 967,
968, 969, 970, 971, 972, 973, 974, 975,
976, 977, 978, 979, 980, 981, 982, 983,
984, 985, 986, 987, 988, 989, 990, 991,
992, 993, 994, 995, 996, 997, 998, 999,
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007,
1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015,
1016, 1017, 1018, 1019, 1020, 1021, 1022, 1023,
}; };
const prog_uint16_t lut_res_left_sin_pan[] PROGMEM = { const prog_uint16_t lut_res_left_sin_pan[] PROGMEM = {
0, 2, 3, 5, 6, 8, 9, 11, 0, 2, 3, 5, 6, 8, 9, 11,
13, 14, 16, 17, 19, 20, 22, 24, 13, 14, 16, 17, 19, 20, 22, 24,
25, 27, 28, 30, 31, 33, 35, 36, 25, 27, 28, 30, 31, 33, 35, 36,
38, 39, 41, 42, 44, 46, 47, 49, 38, 39, 41, 42, 44, 45, 47, 49,
50, 52, 53, 55, 57, 58, 60, 61, 50, 52, 53, 55, 56, 58, 60, 61,
63, 64, 66, 67, 69, 71, 72, 74, 63, 64, 66, 67, 69, 70, 72, 74,
75, 77, 78, 80, 82, 83, 85, 86, 75, 77, 78, 80, 81, 83, 84, 86,
88, 89, 91, 93, 94, 96, 97, 99, 88, 89, 91, 92, 94, 95, 97, 98,
100, 102, 103, 105, 107, 108, 110, 111, 100, 101, 103, 105, 106, 108, 109, 111,
113, 114, 116, 118, 119, 121, 122, 124, 112, 114, 115, 117, 118, 120, 121, 123,
125, 127, 128, 130, 132, 133, 135, 136, 124, 126, 127, 129, 130, 132, 134, 135,
138, 139, 141, 142, 144, 146, 147, 149, 137, 138, 140, 141, 143, 144, 146, 147,
150, 152, 153, 155, 156, 158, 160, 161, 149, 150, 152, 153, 155, 156, 158, 159,
163, 164, 166, 167, 169, 170, 172, 174, 161, 162, 164, 165, 167, 168, 170, 171,
175, 177, 178, 180, 181, 183, 184, 186, 172, 174, 175, 177, 178, 180, 181, 183,
187, 189, 191, 192, 194, 195, 197, 198, 184, 186, 187, 189, 190, 192, 193, 194,
200, 201, 203, 204, 206, 207, 209, 211, 196, 197, 199, 200, 202, 203, 205, 206,
212, 214, 215, 217, 218, 220, 221, 223, 207, 209, 210, 212, 213, 215, 216, 217,
224, 226, 227, 229, 230, 232, 234, 235, 219, 220, 222, 223, 225, 226, 227, 229,
237, 238, 240, 241, 243, 244, 246, 247, 230, 232, 233, 234, 236, 237, 239, 240,
249, 250, 252, 253, 255, 256, 258, 259, 241, 243, 244, 246, 247, 248, 250, 251,
261, 263, 264, 266, 267, 269, 270, 272, 252, 254, 255, 256, 258, 259, 261, 262,
273, 275, 276, 278, 279, 281, 282, 284, 263, 265, 266, 267, 269, 270, 271, 273,
285, 287, 288, 290, 291, 293, 294, 296, 274, 275, 277, 278, 279, 281, 282, 283,
297, 299, 300, 302, 303, 305, 306, 308, 284, 286, 287, 288, 290, 291, 292, 294,
309, 311, 312, 314, 315, 317, 318, 320, 295, 296, 297, 299, 300, 301, 302, 304,
321, 323, 324, 326, 327, 329, 330, 332, 305, 306, 308, 309, 310, 311, 313, 314,
333, 335, 336, 338, 339, 341, 342, 343, 315, 316, 317, 319, 320, 321, 322, 324,
345, 346, 348, 349, 351, 352, 354, 355, 325, 326, 327, 328, 330, 331, 332, 333,
357, 358, 360, 361, 363, 364, 366, 367, 334, 336, 337, 338, 339, 340, 342, 343,
369, 370, 371, 373, 374, 376, 377, 379, 344, 345, 346, 347, 348, 350, 351, 352,
380, 382, 383, 385, 386, 388, 389, 390, 353, 354, 355, 356, 358, 359, 360, 361,
392, 393, 395, 396, 398, 399, 401, 402, 362, 363, 364, 365, 366, 368, 369, 370,
403, 405, 406, 408, 409, 411, 412, 414, 371, 372, 373, 374, 375, 376, 377, 378,
415, 416, 418, 419, 421, 422, 424, 425, 379, 380, 381, 383, 384, 385, 386, 387,
426, 428, 429, 431, 432, 434, 435, 436, 388, 389, 390, 391, 392, 393, 394, 395,
438, 439, 441, 442, 443, 445, 446, 448, 396, 397, 398, 399, 400, 401, 402, 403,
449, 451, 452, 453, 455, 456, 458, 459, 404, 405, 406, 407, 407, 408, 409, 410,
460, 462, 463, 465, 466, 467, 469, 470, 411, 412, 413, 414, 415, 416, 417, 418,
472, 473, 474, 476, 477, 479, 480, 481, 419, 420, 420, 421, 422, 423, 424, 425,
483, 484, 485, 487, 488, 490, 491, 492, 426, 427, 427, 428, 429, 430, 431, 432,
494, 495, 497, 498, 499, 501, 502, 503, 433, 433, 434, 435, 436, 437, 438, 438,
505, 506, 507, 509, 510, 512, 513, 514, 439, 440, 441, 442, 442, 443, 444, 445,
516, 517, 518, 520, 521, 522, 524, 525, 445, 446, 447, 448, 449, 449, 450, 451,
526, 528, 529, 530, 532, 533, 535, 536, 452, 452, 453, 454, 454, 455, 456, 457,
537, 539, 540, 541, 543, 544, 545, 547, 457, 458, 459, 459, 460, 461, 461, 462,
548, 549, 550, 552, 553, 554, 556, 557, 463, 464, 464, 465, 465, 466, 467, 467,
558, 560, 561, 562, 564, 565, 566, 568, 468, 469, 469, 470, 471, 471, 472, 472,
569, 570, 572, 573, 574, 575, 577, 578, 473, 474, 474, 475, 475, 476, 477, 477,
579, 581, 582, 583, 584, 586, 587, 588, 478, 478, 479, 479, 480, 480, 481, 482,
590, 591, 592, 593, 595, 596, 597, 599, 482, 483, 483, 484, 484, 485, 485, 486,
600, 601, 602, 604, 605, 606, 607, 609, 486, 487, 487, 488, 488, 489, 489, 489,
610, 611, 613, 614, 615, 616, 618, 619, 490, 490, 491, 491, 492, 492, 493, 493,
620, 621, 623, 624, 625, 626, 628, 629, 493, 494, 494, 495, 495, 495, 496, 496,
630, 631, 632, 634, 635, 636, 637, 639, 497, 497, 497, 498, 498, 499, 499, 499,
640, 641, 642, 644, 645, 646, 647, 648, 500, 500, 500, 501, 501, 501, 502, 502,
650, 651, 652, 653, 654, 656, 657, 658, 502, 502, 503, 503, 503, 504, 504, 504,
659, 660, 662, 663, 664, 665, 666, 668, 504, 505, 505, 505, 505, 506, 506, 506,
669, 670, 671, 672, 674, 675, 676, 677, 506, 507, 507, 507, 507, 508, 508, 508,
678, 679, 681, 682, 683, 684, 685, 687, 508, 508, 509, 509, 509, 509, 509, 509,
688, 689, 690, 691, 692, 693, 695, 696, 510, 510, 510, 510, 510, 510, 510, 510,
697, 698, 699, 700, 702, 703, 704, 705, 511, 511, 511, 511, 511, 511, 511, 511,
706, 707, 708, 709, 711, 712, 713, 714, 511, 511, 512, 512, 512, 512, 512, 512,
715, 716, 717, 719, 720, 721, 722, 723, 512, 512, 512, 512, 512, 512, 512, 512,
724, 725, 726, 727, 729, 730, 731, 732,
733, 734, 735, 736, 737, 738, 739, 741,
742, 743, 744, 745, 746, 747, 748, 749,
750, 751, 752, 753, 755, 756, 757, 758,
759, 760, 761, 762, 763, 764, 765, 766,
767, 768, 769, 770, 771, 772, 773, 774,
775, 776, 777, 778, 779, 780, 782, 783,
784, 785, 786, 787, 788, 789, 790, 791,
792, 793, 794, 795, 796, 797, 798, 798,
799, 800, 801, 802, 803, 804, 805, 806,
807, 808, 809, 810, 811, 812, 813, 814,
815, 816, 817, 818, 819, 820, 821, 822,
822, 823, 824, 825, 826, 827, 828, 829,
830, 831, 832, 833, 834, 834, 835, 836,
837, 838, 839, 840, 841, 842, 843, 843,
844, 845, 846, 847, 848, 849, 850, 851,
851, 852, 853, 854, 855, 856, 857, 857,
858, 859, 860, 861, 862, 863, 863, 864,
865, 866, 867, 868, 868, 869, 870, 871,
872, 873, 873, 874, 875, 876, 877, 878,
878, 879, 880, 881, 882, 882, 883, 884,
885, 885, 886, 887, 888, 889, 889, 890,
891, 892, 893, 893, 894, 895, 896, 896,
897, 898, 899, 899, 900, 901, 902, 902,
903, 904, 905, 905, 906, 907, 907, 908,
909, 910, 910, 911, 912, 913, 913, 914,
915, 915, 916, 917, 917, 918, 919, 920,
920, 921, 922, 922, 923, 924, 924, 925,
926, 926, 927, 928, 928, 929, 930, 930,
931, 932, 932, 933, 934, 934, 935, 936,
936, 937, 937, 938, 939, 939, 940, 941,
941, 942, 942, 943, 944, 944, 945, 945,
946, 947, 947, 948, 948, 949, 950, 950,
951, 951, 952, 953, 953, 954, 954, 955,
955, 956, 957, 957, 958, 958, 959, 959,
960, 960, 961, 961, 962, 963, 963, 964,
964, 965, 965, 966, 966, 967, 967, 968,
968, 969, 969, 970, 970, 971, 971, 972,
972, 973, 973, 974, 974, 975, 975, 976,
976, 977, 977, 978, 978, 979, 979, 979,
980, 980, 981, 981, 982, 982, 983, 983,
983, 984, 984, 985, 985, 986, 986, 986,
987, 987, 988, 988, 989, 989, 989, 990,
990, 991, 991, 991, 992, 992, 993, 993,
993, 994, 994, 994, 995, 995, 996, 996,
996, 997, 997, 997, 998, 998, 998, 999,
999, 999, 1000, 1000, 1000, 1001, 1001, 1001,
1002, 1002, 1002, 1003, 1003, 1003, 1004, 1004,
1004, 1005, 1005, 1005, 1006, 1006, 1006, 1006,
1007, 1007, 1007, 1008, 1008, 1008, 1008, 1009,
1009, 1009, 1009, 1010, 1010, 1010, 1010, 1011,
1011, 1011, 1011, 1012, 1012, 1012, 1012, 1013,
1013, 1013, 1013, 1014, 1014, 1014, 1014, 1014,
1015, 1015, 1015, 1015, 1016, 1016, 1016, 1016,
1016, 1016, 1017, 1017, 1017, 1017, 1017, 1018,
1018, 1018, 1018, 1018, 1018, 1019, 1019, 1019,
1019, 1019, 1019, 1020, 1020, 1020, 1020, 1020,
1020, 1020, 1020, 1021, 1021, 1021, 1021, 1021,
1021, 1021, 1021, 1022, 1022, 1022, 1022, 1022,
1022, 1022, 1022, 1022, 1022, 1023, 1023, 1023,
1023, 1023, 1023, 1023, 1023, 1023, 1023, 1023,
1023, 1023, 1023, 1023, 1024, 1024, 1024, 1024,
1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024,
1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024,
}; };
const prog_uint16_t lut_res_right_cos_pan[] PROGMEM = { const prog_uint16_t lut_res_right_cos_pan[] PROGMEM = {
1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024, 512, 512, 512, 512, 512, 512, 512, 512,
1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024, 512, 512, 512, 512, 512, 512, 512, 511,
1024, 1024, 1024, 1024, 1024, 1023, 1023, 1023, 511, 511, 511, 511, 511, 511, 511, 511,
1023, 1023, 1023, 1023, 1023, 1023, 1023, 1023, 511, 510, 510, 510, 510, 510, 510, 510,
1023, 1023, 1023, 1023, 1022, 1022, 1022, 1022, 510, 509, 509, 509, 509, 509, 509, 508,
1022, 1022, 1022, 1022, 1022, 1022, 1021, 1021, 508, 508, 508, 508, 507, 507, 507, 507,
1021, 1021, 1021, 1021, 1021, 1021, 1020, 1020, 506, 506, 506, 506, 505, 505, 505, 505,
1020, 1020, 1020, 1020, 1020, 1020, 1019, 1019, 504, 504, 504, 504, 503, 503, 503, 502,
1019, 1019, 1019, 1019, 1018, 1018, 1018, 1018, 502, 502, 502, 501, 501, 501, 500, 500,
1018, 1018, 1017, 1017, 1017, 1017, 1017, 1016, 500, 499, 499, 499, 498, 498, 497, 497,
1016, 1016, 1016, 1016, 1016, 1015, 1015, 1015, 497, 496, 496, 495, 495, 495, 494, 494,
1015, 1014, 1014, 1014, 1014, 1014, 1013, 1013, 493, 493, 493, 492, 492, 491, 491, 490,
1013, 1013, 1012, 1012, 1012, 1012, 1011, 1011, 490, 489, 489, 489, 488, 488, 487, 487,
1011, 1011, 1010, 1010, 1010, 1010, 1009, 1009, 486, 486, 485, 485, 484, 484, 483, 483,
1009, 1009, 1008, 1008, 1008, 1008, 1007, 1007, 482, 482, 481, 480, 480, 479, 479, 478,
1007, 1006, 1006, 1006, 1006, 1005, 1005, 1005, 478, 477, 477, 476, 475, 475, 474, 474,
1004, 1004, 1004, 1003, 1003, 1003, 1002, 1002, 473, 472, 472, 471, 471, 470, 469, 469,
1002, 1001, 1001, 1001, 1000, 1000, 1000, 999, 468, 467, 467, 466, 465, 465, 464, 464,
999, 999, 998, 998, 998, 997, 997, 997, 463, 462, 461, 461, 460, 459, 459, 458,
996, 996, 996, 995, 995, 994, 994, 994, 457, 457, 456, 455, 454, 454, 453, 452,
993, 993, 993, 992, 992, 991, 991, 991, 452, 451, 450, 449, 449, 448, 447, 446,
990, 990, 989, 989, 989, 988, 988, 987, 445, 445, 444, 443, 442, 442, 441, 440,
987, 986, 986, 986, 985, 985, 984, 984, 439, 438, 438, 437, 436, 435, 434, 433,
983, 983, 983, 982, 982, 981, 981, 980, 433, 432, 431, 430, 429, 428, 427, 427,
980, 979, 979, 979, 978, 978, 977, 977, 426, 425, 424, 423, 422, 421, 420, 420,
976, 976, 975, 975, 974, 974, 973, 973, 419, 418, 417, 416, 415, 414, 413, 412,
972, 972, 971, 971, 970, 970, 969, 969, 411, 410, 409, 408, 407, 407, 406, 405,
968, 968, 967, 967, 966, 966, 965, 965, 404, 403, 402, 401, 400, 399, 398, 397,
964, 964, 963, 963, 962, 961, 961, 960, 396, 395, 394, 393, 392, 391, 390, 389,
960, 959, 959, 958, 958, 957, 957, 956, 388, 387, 386, 385, 384, 383, 381, 380,
955, 955, 954, 954, 953, 953, 952, 951, 379, 378, 377, 376, 375, 374, 373, 372,
951, 950, 950, 949, 948, 948, 947, 947, 371, 370, 369, 368, 366, 365, 364, 363,
946, 945, 945, 944, 944, 943, 942, 942, 362, 361, 360, 359, 358, 356, 355, 354,
941, 941, 940, 939, 939, 938, 937, 937, 353, 352, 351, 350, 348, 347, 346, 345,
936, 936, 935, 934, 934, 933, 932, 932, 344, 343, 342, 340, 339, 338, 337, 336,
931, 930, 930, 929, 928, 928, 927, 926, 334, 333, 332, 331, 330, 328, 327, 326,
926, 925, 924, 924, 923, 922, 922, 921, 325, 324, 322, 321, 320, 319, 317, 316,
920, 920, 919, 918, 917, 917, 916, 915, 315, 314, 313, 311, 310, 309, 308, 306,
915, 914, 913, 913, 912, 911, 910, 910, 305, 304, 302, 301, 300, 299, 297, 296,
909, 908, 907, 907, 906, 905, 905, 904, 295, 294, 292, 291, 290, 288, 287, 286,
903, 902, 902, 901, 900, 899, 899, 898, 284, 283, 282, 281, 279, 278, 277, 275,
897, 896, 896, 895, 894, 893, 893, 892, 274, 273, 271, 270, 269, 267, 266, 265,
891, 890, 889, 889, 888, 887, 886, 885, 263, 262, 261, 259, 258, 256, 255, 254,
885, 884, 883, 882, 882, 881, 880, 879, 252, 251, 250, 248, 247, 246, 244, 243,
878, 878, 877, 876, 875, 874, 873, 873, 241, 240, 239, 237, 236, 234, 233, 232,
872, 871, 870, 869, 868, 868, 867, 866, 230, 229, 227, 226, 225, 223, 222, 220,
865, 864, 863, 863, 862, 861, 860, 859, 219, 217, 216, 215, 213, 212, 210, 209,
858, 857, 857, 856, 855, 854, 853, 852, 207, 206, 205, 203, 202, 200, 199, 197,
851, 851, 850, 849, 848, 847, 846, 845, 196, 194, 193, 192, 190, 189, 187, 186,
844, 843, 843, 842, 841, 840, 839, 838, 184, 183, 181, 180, 178, 177, 175, 174,
837, 836, 835, 834, 834, 833, 832, 831, 172, 171, 170, 168, 167, 165, 164, 162,
830, 829, 828, 827, 826, 825, 824, 823, 161, 159, 158, 156, 155, 153, 152, 150,
822, 822, 821, 820, 819, 818, 817, 816, 149, 147, 146, 144, 143, 141, 140, 138,
815, 814, 813, 812, 811, 810, 809, 808, 137, 135, 134, 132, 130, 129, 127, 126,
807, 806, 805, 804, 803, 802, 801, 800, 124, 123, 121, 120, 118, 117, 115, 114,
799, 798, 798, 797, 796, 795, 794, 793, 112, 111, 109, 108, 106, 105, 103, 101,
792, 791, 790, 789, 788, 787, 786, 785, 100, 98, 97, 95, 94, 92, 91, 89,
784, 783, 782, 780, 779, 778, 777, 776, 88, 86, 84, 83, 81, 80, 78, 77,
775, 774, 773, 772, 771, 770, 769, 768, 75, 74, 72, 70, 69, 67, 66, 64,
767, 766, 765, 764, 763, 762, 761, 760, 63, 61, 60, 58, 56, 55, 53, 52,
759, 758, 757, 756, 755, 753, 752, 751, 50, 49, 47, 45, 44, 42, 41, 39,
750, 749, 748, 747, 746, 745, 744, 743,
742, 741, 739, 738, 737, 736, 735, 734,
733, 732, 731, 730, 729, 727, 726, 725,
724, 723, 722, 721, 720, 719, 717, 716,
715, 714, 713, 712, 711, 709, 708, 707,
706, 705, 704, 703, 702, 700, 699, 698,
697, 696, 695, 693, 692, 691, 690, 689,
688, 687, 685, 684, 683, 682, 681, 679,
678, 677, 676, 675, 674, 672, 671, 670,
669, 668, 666, 665, 664, 663, 662, 660,
659, 658, 657, 656, 654, 653, 652, 651,
650, 648, 647, 646, 645, 644, 642, 641,
640, 639, 637, 636, 635, 634, 632, 631,
630, 629, 628, 626, 625, 624, 623, 621,
620, 619, 618, 616, 615, 614, 613, 611,
610, 609, 607, 606, 605, 604, 602, 601,
600, 599, 597, 596, 595, 593, 592, 591,
590, 588, 587, 586, 584, 583, 582, 581,
579, 578, 577, 575, 574, 573, 572, 570,
569, 568, 566, 565, 564, 562, 561, 560,
558, 557, 556, 554, 553, 552, 550, 549,
548, 547, 545, 544, 543, 541, 540, 539,
537, 536, 535, 533, 532, 530, 529, 528,
526, 525, 524, 522, 521, 520, 518, 517,
516, 514, 513, 512, 510, 509, 507, 506,
505, 503, 502, 501, 499, 498, 497, 495,
494, 492, 491, 490, 488, 487, 485, 484,
483, 481, 480, 479, 477, 476, 474, 473,
472, 470, 469, 467, 466, 465, 463, 462,
460, 459, 458, 456, 455, 453, 452, 451,
449, 448, 446, 445, 443, 442, 441, 439,
438, 436, 435, 434, 432, 431, 429, 428,
426, 425, 424, 422, 421, 419, 418, 416,
415, 414, 412, 411, 409, 408, 406, 405,
403, 402, 401, 399, 398, 396, 395, 393,
392, 390, 389, 388, 386, 385, 383, 382,
380, 379, 377, 376, 374, 373, 371, 370,
369, 367, 366, 364, 363, 361, 360, 358,
357, 355, 354, 352, 351, 349, 348, 346,
345, 343, 342, 341, 339, 338, 336, 335,
333, 332, 330, 329, 327, 326, 324, 323,
321, 320, 318, 317, 315, 314, 312, 311,
309, 308, 306, 305, 303, 302, 300, 299,
297, 296, 294, 293, 291, 290, 288, 287,
285, 284, 282, 281, 279, 278, 276, 275,
273, 272, 270, 269, 267, 266, 264, 263,
261, 259, 258, 256, 255, 253, 252, 250,
249, 247, 246, 244, 243, 241, 240, 238,
237, 235, 234, 232, 230, 229, 227, 226,
224, 223, 221, 220, 218, 217, 215, 214,
212, 211, 209, 207, 206, 204, 203, 201,
200, 198, 197, 195, 194, 192, 191, 189,
187, 186, 184, 183, 181, 180, 178, 177,
175, 174, 172, 170, 169, 167, 166, 164,
163, 161, 160, 158, 156, 155, 153, 152,
150, 149, 147, 146, 144, 142, 141, 139,
138, 136, 135, 133, 132, 130, 128, 127,
125, 124, 122, 121, 119, 118, 116, 114,
113, 111, 110, 108, 107, 105, 103, 102,
100, 99, 97, 96, 94, 93, 91, 89,
88, 86, 85, 83, 82, 80, 78, 77,
75, 74, 72, 71, 69, 67, 66, 64,
63, 61, 60, 58, 57, 55, 53, 52,
50, 49, 47, 46, 44, 42, 41, 39,
38, 36, 35, 33, 31, 30, 28, 27, 38, 36, 35, 33, 31, 30, 28, 27,
25, 24, 22, 20, 19, 17, 16, 14, 25, 24, 22, 20, 19, 17, 16, 14,
13, 11, 9, 8, 6, 5, 3, 0, 13, 11, 9, 8, 6, 5, 3, 0,

6
stereo_mix/resources.h
View file

@ -44,11 +44,11 @@ extern const prog_uint16_t lut_res_left_sin_pan[] PROGMEM;
extern const prog_uint16_t lut_res_right_cos_pan[] PROGMEM; extern const prog_uint16_t lut_res_right_cos_pan[] PROGMEM;
#define STR_RES_DUMMY 0 // dummy #define STR_RES_DUMMY 0 // dummy
#define LUT_RES_LINEAR_TO_EXP 0 #define LUT_RES_LINEAR_TO_EXP 0
#define LUT_RES_LINEAR_TO_EXP_SIZE 1024 #define LUT_RES_LINEAR_TO_EXP_SIZE 512
#define LUT_RES_LEFT_SIN_PAN 1 #define LUT_RES_LEFT_SIN_PAN 1
#define LUT_RES_LEFT_SIN_PAN_SIZE 1024 #define LUT_RES_LEFT_SIN_PAN_SIZE 512
#define LUT_RES_RIGHT_COS_PAN 2 #define LUT_RES_RIGHT_COS_PAN 2
#define LUT_RES_RIGHT_COS_PAN_SIZE 1024 #define LUT_RES_RIGHT_COS_PAN_SIZE 512
} // namespace stereo_mix } // namespace stereo_mix

23
stereo_mix/resources/lookup_tables.py
View file

@ -6,28 +6,25 @@ lookup_tables_32 = []
# linear to exponential conversion # linear to exponential conversion
values = [] values = []
size = 1024.0 size = 512.0
for x in range(int(size)): for x in range(1, int(size) + 1):
if x == 0: values.append(numpy.power(x / 512.0, 2) * size)
values.append(0)
else:
values.append((x ** 2) / x)
lookup_tables.append(('linear_to_exp', values)) lookup_tables.append(('linear_to_exp', values))
# Left pan Lookup table # Left pan Lookup table
l_pan = numpy.arange(0, 1024) l_pan = numpy.arange(0, 512)
r_pan = numpy.arange(0, 1024) r_pan = numpy.arange(0, 512)
l_pan = numpy.sin((l_pan / 1024.0) * (numpy.pi / 2.0)) l_pan = numpy.sin((l_pan / 512.0) * (numpy.pi / 2.0))
r_pan = numpy.cos((r_pan / 1024.0) * (numpy.pi / 2.0)) r_pan = numpy.cos((r_pan / 512.0) * (numpy.pi / 2.0))
l_pan = numpy.round(l_pan * 1024) l_pan = numpy.round(l_pan * 512)
r_pan = numpy.round(r_pan * 1024) r_pan = numpy.round(r_pan * 512)
r_pan[1023] = 0 # dirty fix r_pan[511] = 0 # dirty fix
lookup_tables.append(('left_sin_pan', l_pan)) lookup_tables.append(('left_sin_pan', l_pan))
lookup_tables.append(('right_cos_pan', r_pan)) lookup_tables.append(('right_cos_pan', r_pan))

12
stereo_mix/stereo_mix.cc
View file

@ -1,9 +1,6 @@
#include <avr/pgmspace.h>
#include "avrlib/adc.h" #include "avrlib/adc.h"
#include "avrlib/avrlib.h" #include "avrlib/avrlib.h"
#include "avrlib/boot.h" #include "avrlib/boot.h"
#include "avrlib/deprecated/devices/input_array.h"
#include "avrlib/devices/mcp492x.h" #include "avrlib/devices/mcp492x.h"
#include "avrlib/gpio.h" #include "avrlib/gpio.h"
#include "avrlib/spi.h" #include "avrlib/spi.h"
@ -67,10 +64,10 @@ int main(void)
while (true) { while (true) {
ResetWatchdog(); ResetWatchdog();
for (int i = 0; i < NUM_CHANNELS; i++) { int i = AnalogInputs::current_pin() % NUM_CHANNELS;
volume[i] = pgm_read_word_near(lut_res_linear_to_exp + (AnalogInputs::Read(i))); volume[i] = pgm_read_word_near(lut_res_linear_to_exp + (AnalogInputs::Read(i) >> 1)) << 1;
pan[i * NUM_CHANNELS] = pgm_read_word(lut_res_left_sin_pan + AnalogInputs::Read(i + NUM_CHANNELS)); pan[i * NUM_CHANNELS] = pgm_read_word(lut_res_left_sin_pan + (AnalogInputs::Read(i + NUM_CHANNELS) >> 1)) << 1;
pan[i * NUM_CHANNELS + 1] = pgm_read_word(lut_res_right_cos_pan + AnalogInputs::Read(i + NUM_CHANNELS)); pan[i * NUM_CHANNELS + 1] = pgm_read_word(lut_res_right_cos_pan + (AnalogInputs::Read(i + NUM_CHANNELS) >> 1)) << 1;
switch (i) { switch (i) {
case 0: case 0:
@ -89,7 +86,6 @@ int main(void)
AnalogInputs::Scan(); AnalogInputs::Scan();
} }
} }
}
TIMER_0_TICK TIMER_0_TICK
{ {