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@ -9,23 +9,17 @@ |
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namespace BAGuitar { |
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constexpr int MIDI_NUM_PARAMS = 4; |
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constexpr int MIDI_CHANNEL = 0; |
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constexpr int MIDI_CONTROL = 1; |
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constexpr int MIDI_BYPASS = 0; |
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constexpr int MIDI_DELAY = 1; |
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constexpr int MIDI_FEEDBACK = 2; |
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constexpr int MIDI_MIX = 3; |
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// BOSS DM-3 Filters
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constexpr unsigned NUM_IIR_STAGES = 4; |
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constexpr unsigned IIR_COEFF_SHIFT = 2; |
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constexpr int32_t DEFAULT_COEFFS[5*NUM_IIR_STAGES] = { |
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536870912, 988616936, 455608573, 834606945, -482959709, |
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536870912, 1031466345, 498793368, 965834205, -467402235, |
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536870912, 1105821939, 573646688, 928470657, -448083489, |
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2339, 5093, 2776, 302068995, 4412722 |
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536870912, 988616936, 455608573, 834606945, -482959709, |
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536870912, 1031466345, 498793368, 965834205, -467402235, |
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536870912, 1105821939, 573646688, 928470657, -448083489, |
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2339, 5093, 2776, 302068995, 4412722 |
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}; |
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@ -200,13 +194,40 @@ void AudioEffectAnalogDelay::delay(size_t delaySamples) |
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m_delaySamples= delaySamples; |
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} |
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void AudioEffectAnalogDelay::m_preProcessing(audio_block_t *out, audio_block_t *dry, audio_block_t *wet) |
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{ |
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if ( out && dry && wet) { |
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alphaBlend(out, dry, wet, m_feedback); |
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m_iir->process(out->data, out->data, AUDIO_BLOCK_SAMPLES); |
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} else if (dry) { |
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memcpy(out->data, dry->data, sizeof(int16_t) * AUDIO_BLOCK_SAMPLES); |
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} |
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} |
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void AudioEffectAnalogDelay::m_postProcessing(audio_block_t *out, audio_block_t *dry, audio_block_t *wet) |
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{ |
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if (!out) return; // no valid output buffer
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if ( out && dry && wet) { |
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// Simulate the LPF IIR nature of the analog systems
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//m_iir->process(wet->data, wet->data, AUDIO_BLOCK_SAMPLES);
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alphaBlend(out, dry, wet, m_mix); |
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} else if (dry) { |
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memcpy(out->data, dry->data, sizeof(int16_t) * AUDIO_BLOCK_SAMPLES); |
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} |
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// Set the output volume
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gainAdjust(out, out, m_volume, 1); |
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} |
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void AudioEffectAnalogDelay::processMidi(int channel, int control, int value) |
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{ |
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float val = (float)value / 127.0f; |
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if ((m_midiConfig[MIDI_DELAY][MIDI_CHANNEL] == channel) && |
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(m_midiConfig[MIDI_DELAY][MIDI_CONTROL] == control)) { |
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if ((m_midiConfig[DELAY][MIDI_CHANNEL] == channel) && |
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(m_midiConfig[DELAY][MIDI_CONTROL] == control)) { |
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// Delay
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m_maxDelaySamples = m_memory->getSlot()->size(); |
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Serial.println(String("AudioEffectAnalogDelay::delay: ") + val + String(" out of ") + m_maxDelaySamples); |
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@ -214,75 +235,47 @@ void AudioEffectAnalogDelay::processMidi(int channel, int control, int value) |
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return; |
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} |
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if ((m_midiConfig[MIDI_BYPASS][MIDI_CHANNEL] == channel) && |
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(m_midiConfig[MIDI_BYPASS][MIDI_CONTROL] == control)) { |
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if ((m_midiConfig[BYPASS][MIDI_CHANNEL] == channel) && |
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(m_midiConfig[BYPASS][MIDI_CONTROL] == control)) { |
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// Bypass
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if (value >= 65) { bypass(false); Serial.println(String("AudioEffectAnalogDelay::not bypassed -> ON") + value); } |
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else { bypass(true); Serial.println(String("AudioEffectAnalogDelay::bypassed -> OFF") + value); } |
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return; |
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} |
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if ((m_midiConfig[MIDI_FEEDBACK][MIDI_CHANNEL] == channel) && |
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(m_midiConfig[MIDI_FEEDBACK][MIDI_CONTROL] == control)) { |
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if ((m_midiConfig[FEEDBACK][MIDI_CHANNEL] == channel) && |
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(m_midiConfig[FEEDBACK][MIDI_CONTROL] == control)) { |
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// Feedback
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Serial.println(String("AudioEffectAnalogDelay::feedback: ") + val); |
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feedback(val); |
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return; |
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} |
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if ((m_midiConfig[MIDI_MIX][MIDI_CHANNEL] == channel) && |
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(m_midiConfig[MIDI_MIX][MIDI_CONTROL] == control)) { |
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if ((m_midiConfig[MIX][MIDI_CHANNEL] == channel) && |
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(m_midiConfig[MIX][MIDI_CONTROL] == control)) { |
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// Mix
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Serial.println(String("AudioEffectAnalogDelay::mix: ") + val); |
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mix(val); |
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return; |
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} |
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} |
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void AudioEffectAnalogDelay::mapMidiDelay(int control, int channel) |
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{ |
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m_midiConfig[MIDI_DELAY][MIDI_CHANNEL] = channel; |
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m_midiConfig[MIDI_DELAY][MIDI_CONTROL] = control; |
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} |
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void AudioEffectAnalogDelay::mapMidiBypass(int control, int channel) |
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{ |
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m_midiConfig[MIDI_BYPASS][MIDI_CHANNEL] = channel; |
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m_midiConfig[MIDI_BYPASS][MIDI_CONTROL] = control; |
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} |
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void AudioEffectAnalogDelay::mapMidiFeedback(int control, int channel) |
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{ |
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m_midiConfig[MIDI_FEEDBACK][MIDI_CHANNEL] = channel; |
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m_midiConfig[MIDI_FEEDBACK][MIDI_CONTROL] = control; |
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} |
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void AudioEffectAnalogDelay::mapMidiMix(int control, int channel) |
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{ |
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m_midiConfig[MIDI_MIX][MIDI_CHANNEL] = channel; |
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m_midiConfig[MIDI_MIX][MIDI_CONTROL] = control; |
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} |
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void AudioEffectAnalogDelay::m_preProcessing(audio_block_t *out, audio_block_t *dry, audio_block_t *wet) |
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{ |
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if ( out && dry && wet) { |
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alphaBlend(out, dry, wet, m_feedback); |
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m_iir->process(out->data, out->data, AUDIO_BLOCK_SAMPLES); |
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} else if (dry) { |
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memcpy(out->data, dry->data, sizeof(int16_t) * AUDIO_BLOCK_SAMPLES); |
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if ((m_midiConfig[VOLUME][MIDI_CHANNEL] == channel) && |
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(m_midiConfig[VOLUME][MIDI_CONTROL] == control)) { |
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// Volume
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Serial.println(String("AudioEffectAnalogDelay::volume: ") + val); |
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volume(val); |
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return; |
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} |
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} |
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void AudioEffectAnalogDelay::m_postProcessing(audio_block_t *out, audio_block_t *dry, audio_block_t *wet) |
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void AudioEffectAnalogDelay::mapMidiControl(int parameter, int midiCC, int midiChannel) |
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{ |
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if ( out && dry && wet) { |
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// Simulate the LPF IIR nature of the analog systems
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//m_iir->process(wet->data, wet->data, AUDIO_BLOCK_SAMPLES);
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alphaBlend(out, dry, wet, m_mix); |
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} else if (dry) { |
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memcpy(out->data, dry->data, sizeof(int16_t) * AUDIO_BLOCK_SAMPLES); |
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if (parameter >= NUM_CONTROLS) { |
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return ; // Invalid midi parameter
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} |
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m_midiConfig[parameter][MIDI_CHANNEL] = midiChannel; |
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m_midiConfig[parameter][MIDI_CONTROL] = midiCC; |
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} |
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} |
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