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- // Copyright 2013 Olivier Gillet.
- //
- // Author: Olivier Gillet (ol.gillet@gmail.com)
- //
- // 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.
- //
- // See http://creativecommons.org/licenses/MIT/ for more information.
- //
- // -----------------------------------------------------------------------------
- //
- // Trigger to gate converter with pre-delay, duration, and repetitions.
-
- #ifndef PEAKS_PULSE_PROCESSOR_PULSE_SHAPER_H_
- #define PEAKS_PULSE_PROCESSOR_PULSE_SHAPER_H_
-
- #include "stmlib/stmlib.h"
- #include "stmlib/utils/ring_buffer.h"
-
- #include "peaks/gate_processor.h"
-
- namespace peaks {
-
- struct Pulse {
- uint16_t initial_delay_counter;
- uint16_t duration_counter;
- uint16_t delay_counter;
- uint16_t repetition_counter;
- };
-
- static const uint8_t kPulseBufferSize = 32;
-
- class PulseShaper {
- public:
- PulseShaper() { }
- ~PulseShaper() { }
-
- void Init();
- void FillBuffer(InputBuffer* input_buffer, OutputBuffer* output_buffer);
-
- void Configure(uint16_t* parameter, ControlMode control_mode) {
- if (control_mode == CONTROL_MODE_HALF) {
- set_initial_delay(0);
- set_duration(parameter[0] >> 1);
- set_delay((parameter[0] >> 1) + 2048);
- set_num_repetitions(parameter[1]);
- } else {
- set_initial_delay(parameter[0]);
- set_duration(parameter[1] >> 1);
- set_delay(parameter[2] >> 1);
- set_num_repetitions(parameter[3]);
- }
- }
-
- inline void set_initial_delay(uint16_t initial_delay) {
- initial_delay_ = initial_delay;
- }
-
- inline void set_duration(uint16_t duration) {
- duration_ = duration;
- }
-
- inline void set_delay(uint16_t delay) {
- delay_ = delay;
- }
-
- inline void set_num_repetitions(uint16_t num_repetitions) {
- num_repetitions_ = num_repetitions >> 13;
- }
-
- private:
- uint16_t delay() const;
- uint16_t duration() const;
- uint16_t initial_delay() const;
-
- uint16_t initial_delay_;
- uint16_t duration_;
- uint16_t delay_;
- uint16_t num_repetitions_;
-
- uint16_t previous_num_pulses_;
- uint16_t retrig_counter_;
-
- Pulse pulse_buffer_[kPulseBufferSize];
-
- DISALLOW_COPY_AND_ASSIGN(PulseShaper);
- };
-
- } // namespace peaks
-
- #endif // PEAKS_PULSE_PROCESSOR_PULSE_SHAPER_H_
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