godot/drivers/chibi/cp_player_data_filter.cpp
2014-02-09 22:10:30 -03:00

90 lines
4.2 KiB
C++

/*************************************************************************/
/* cp_player_data_filter.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "cp_player_data.h"
static float filter_cutoff[256] = {
130, 132, 134, 136, 138, 140, 142, 144,
146, 148, 151, 153, 155, 157, 160, 162,
164, 167, 169, 172, 174, 177, 179, 182,
184, 187, 190, 193, 195, 198, 201, 204,
207, 210, 213, 216, 220, 223, 226, 229,
233, 236, 239, 243, 246, 250, 254, 257,
261, 265, 269, 273, 277, 281, 285, 289,
293, 297, 302, 306, 311, 315, 320, 324,
329, 334, 339, 344, 349, 354, 359, 364,
369, 375, 380, 386, 391, 397, 403, 409,
415, 421, 427, 433, 440, 446, 452, 459,
466, 472, 479, 486, 493, 501, 508, 515,
523, 530, 538, 546, 554, 562, 570, 578,
587, 595, 604, 613, 622, 631, 640, 649,
659, 668, 678, 688, 698, 708, 718, 729,
739, 750, 761, 772, 783, 795, 806, 818,
830, 842, 854, 867, 880, 892, 905, 918,
932, 945, 959, 973, 987, 1002, 1016, 1031,
1046, 1061, 1077, 1092, 1108, 1124, 1141, 1157,
1174, 1191, 1209, 1226, 1244, 1262, 1280, 1299,
1318, 1337, 1357, 1376, 1396, 1417, 1437, 1458,
1479, 1501, 1523, 1545, 1567, 1590, 1613, 1637,
1661, 1685, 1709, 1734, 1760, 1785, 1811, 1837,
1864, 1891, 1919, 1947, 1975, 2004, 2033, 2062,
2093, 2123, 2154, 2185, 2217, 2249, 2282, 2315,
2349, 2383, 2418, 2453, 2489, 2525, 2561, 2599,
2637, 2675, 2714, 2753, 2793, 2834, 2875, 2917,
2959, 3003, 3046, 3091, 3135, 3181, 3227, 3274,
3322, 3370, 3419, 3469, 3520, 3571, 3623, 3675,
3729, 3783, 3838, 3894, 3951, 4008, 4066, 4125,
4186, 4246, 4308, 4371, 4434, 4499, 4564, 4631,
4698, 4766, 4836, 4906, 4978, 5050, 5123, 5198
};
void CPPlayer::Filter_Control::process() {
final_cutoff=it_cutoff;
if (envelope_cutoff>=0) {
envelope_cutoff=envelope_cutoff*255/64;
final_cutoff=final_cutoff*envelope_cutoff/255;
if (final_cutoff>=0xFF) final_cutoff=0xFE;
}
}
void CPPlayer::Filter_Control::set_filter_parameters(int *p_cutoff,uint8_t *p_reso) {
*p_cutoff=filter_cutoff[final_cutoff];
*p_reso=it_reso;
}