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68 lines
2.2 KiB
C++
68 lines
2.2 KiB
C++
// Copyright 2013 Emilie Gillet.
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//
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// Author: Emilie Gillet (emilie.o.gillet@gmail.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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// See http://creativecommons.org/licenses/MIT/ for more information.
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//
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// -----------------------------------------------------------------------------
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//
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// General declarations used by all trigger/gate processors.
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#ifndef PEAKS_GATE_PROCESSOR_H_
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#define PEAKS_GATE_PROCESSOR_H_
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#include <avrlib/avrlib.h>
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namespace pure_adsr {
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enum ControlMode {
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CONTROL_MODE_FULL,
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CONTROL_MODE_HALF
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};
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enum GateFlagsBits {
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GATE_FLAG_LOW = 0,
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GATE_FLAG_HIGH = 1,
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GATE_FLAG_RISING = 2,
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GATE_FLAG_FALLING = 4,
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GATE_FLAG_FROM_BUTTON = 8,
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GATE_FLAG_AUXILIARY_LOW = 0,
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GATE_FLAG_AUXILIARY_HIGH = 16,
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GATE_FLAG_AUXILIARY_RISING = 32,
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GATE_FLAG_AUXILIARY_FALLING = 64,
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};
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typedef uint8_t GateFlags;
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inline GateFlags ExtractGateFlags(GateFlags previous, bool current) {
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previous &= GATE_FLAG_HIGH;
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if (current) {
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return previous ? GATE_FLAG_HIGH : (GATE_FLAG_RISING | GATE_FLAG_HIGH);
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} else {
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return previous ? GATE_FLAG_FALLING : GATE_FLAG_LOW;
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}
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}
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} // namespace peaks
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#endif // PEAKS_GATE_PROCESSOR_H_
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