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#include <dolphin/axart.h>
#include <dolphin/os.h>
#include <dolphin/mix.h>
#include "sdk_math.h"
static u16 __coefs[48] = {
0x6A09, 0x15F6, 0x6871, 0x178E, 0x6463, 0x1B9C,
0x5DB3, 0x224C, 0x5618, 0x29E7, 0x4D7A, 0x3285,
0x4367, 0x3C98, 0x3A5A, 0x45A5, 0x31C5, 0x4E3A,
0x2924, 0x56DB, 0x2244, 0x5DBB, 0x1C50, 0x63AF,
0x16C0, 0x693F, 0x1292, 0x6D6D, 0x0F18, 0x70E7,
0x0BF5, 0x740A, 0x09A9, 0x7656, 0x07CA, 0x7835,
0x0646, 0x79B9, 0x04ED, 0x7B12, 0x03F5, 0x7C0A,
0x032D, 0x7CD2, 0x027D, 0x7D82, 0x01FE, 0x7E01
};
void AXARTLpf(AXART_LPF* articulator, AXVPB* voice) {
u32 i;
ASSERTLINE(68, articulator);
ASSERTLINE(69, voice);
if (articulator->update != 0) {
if (articulator->initLPF != 0) {
articulator->initLPF = 0;
voice->pb.lpf.on = 1;
voice->pb.lpf.yn1 = 0;
voice->sync |= 0x200000;
} else {
voice->sync |= 0x400000;
}
i = articulator->frequency;
ASSERTMSGLINE(90, i < 24, "AXART: roll off frequency should be < 24");
i *= 2;
voice->pb.lpf.a0 = __coefs[i];
i++;
voice->pb.lpf.b0 = __coefs[i];
articulator->update = 0;
}
}
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