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91 lines
2.1 KiB
91 lines
2.1 KiB
/*
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Copyright 2012 Google Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#ifndef SYNTH_H
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#define SYNTH_H
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//#define SUPER_PRECISE
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#include <stdint.h>
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#define MIDI_CONTROLLER_MODE_MAX 2
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#define TRANSPOSE_FIX 24
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#define VOICE_SILENCE_LEVEL 1100
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#define LG_N 6
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#define _N_ (1 << LG_N)
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/*template<typename T>
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inline static T min(const T& a, const T& b) {
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return a < b ? a : b;
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}
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template<typename T>
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inline static T max(const T& a, const T& b) {
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return a > b ? a : b;
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}*/
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#define QER(n,b) ( ((float)n)/(1<<b) )
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#define FRAC_NUM float
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#define SIN_FUNC sinf
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// #define SIN_FUNC arm_sin_f32 // very fast but not as accurate
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#define COS_FUNC cosf
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// #define COS_FUNC arm_cos_f32 // very fast but not as accurate
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#define LOG_FUNC logf
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#define EXP_FUNC expf
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#define SQRT_FUNC sqrtf
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// #define ARM_SQRT_FUNC arm_sqrt_f32 // fast but not as accurate
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#if defined(__circle__)
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#include <circle/timer.h>
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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#define constrain(amt, low, high) ({ \
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__typeof__(amt) _amt = (amt); \
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__typeof__(low) _low = (low); \
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__typeof__(high) _high = (high); \
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(_amt < _low) ? _low : ((_amt > _high) ? _high : _amt); \
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})
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static inline int32_t signed_saturate_rshift(int32_t val, int32_t bits, int32_t rshift)
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{
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int32_t out, max;
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out = val >> rshift;
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max = 1 << (bits - 1);
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if (out >= 0)
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{
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if (out > max - 1) out = max - 1;
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}
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else
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{
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if (out < -max) out = -max;
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}
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return out;
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}
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static inline uint32_t millis (void)
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{
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return uint32_t(CTimer::Get ()->GetClockTicks () / (CLOCKHZ / 1000));
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}
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#endif
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#endif
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