103 lines
3.8 KiB
C++
103 lines
3.8 KiB
C++
// SPDX-License-Identifier: BSD-2-Clause
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// This code is part of the sfizz library and is licensed under a BSD 2-clause
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// license. You should have receive a LICENSE.md file along with the code.
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// If not, contact the sfizz maintainers at https://github.com/sfztools/sfizz
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#pragma once
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#ifdef _WIN32
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// There's a spurious min/max function in MSVC that makes everything go badly...
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#ifndef NOMINMAX
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#define NOMINMAX 1
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#endif
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#define _SILENCE_CXX17_OLD_ALLOCATOR_MEMBERS_DEPRECATION_WARNING
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#endif
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#include "absl/strings/string_view.h"
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#include <cstddef>
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#include <cstdint>
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namespace sfz {
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enum class Oversampling: int {
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x1 = 1,
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x2 = 2,
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x4 = 4,
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x8 = 8
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};
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namespace config {
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constexpr float defaultSampleRate { 48000 };
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constexpr float maxSampleRate { 192000 };
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constexpr int defaultSamplesPerBlock { 1024 };
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constexpr int maxBlockSize { 8192 };
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constexpr int bufferPoolSize { 6 };
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constexpr int stereoBufferPoolSize { 4 };
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constexpr int indexBufferPoolSize { 2 };
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constexpr int preloadSize { 8192 };
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constexpr int loggerQueueSize { 256 };
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constexpr int voiceLoggerQueueSize { 256 };
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constexpr bool loggingEnabled { false };
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constexpr size_t numChannels { 2 };
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constexpr int numBackgroundThreads { 4 };
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constexpr int numVoices { 64 };
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constexpr unsigned maxVoices { 256 };
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constexpr unsigned smoothingSteps { 512 };
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constexpr uint8_t gainSmoothing { 5 };
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constexpr unsigned powerTableSizeExponent { 11 };
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constexpr int maxFilePromises { maxVoices };
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constexpr int allSoundOffCC { 120 };
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constexpr int resetCC { 121 };
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constexpr int allNotesOffCC { 123 };
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constexpr int omniOffCC { 124 };
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constexpr int omniOnCC { 125 };
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constexpr float halfCCThreshold { 0.5f };
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constexpr int centPerSemitone { 100 };
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constexpr float virtuallyZero { 0.001f };
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constexpr float fastReleaseDuration { 0.01f };
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constexpr char defineCharacter { '$' };
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constexpr Oversampling defaultOversamplingFactor { Oversampling::x1 };
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constexpr float A440 { 440.0 };
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constexpr size_t powerHistoryLength { 16 };
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constexpr float filteredEnvelopeCutoff { 5 };
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constexpr uint16_t numCCs { 512 };
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constexpr int maxCurves { 256 };
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constexpr int chunkSize { 1024 };
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constexpr unsigned int defaultAlignment { 16 };
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constexpr int filtersInPool { maxVoices * 2 };
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constexpr int excessFileFrames { 8 };
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/**
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* @brief The threshold for age stealing.
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* In percentage of the voice's max age.
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*/
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constexpr float stealingAgeCoeff { 0.5f };
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/**
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* @brief The threshold for envelope stealing.
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* In percentage of the sum of all envelopes.
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*/
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constexpr float stealingEnvelopeCoeff { 0.5f };
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constexpr int filtersPerVoice { 2 };
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constexpr int eqsPerVoice { 3 };
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constexpr int oscillatorsPerVoice { 9 };
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constexpr float noiseVariance { 0.25f };
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/**
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Minimum interval in frames between recomputations of coefficients of the
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modulated filter. The lower, the more CPU resources are consumed.
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*/
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constexpr int filterControlInterval { 16 };
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/**
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Default metadata for MIDIName documents
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*/
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const absl::string_view midnamManufacturer { "The Sfizz authors" };
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const absl::string_view midnamModel { "Sfizz" };
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/**
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Limit of how many "fxN" buses are accepted (in SFZv2, maximum is 4)
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*/
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constexpr int maxEffectBuses { 256 };
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// Wavetable constants; amplitude values are matched to reference
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static constexpr unsigned tableSize = 1024;
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static constexpr double amplitudeSine = 0.625;
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static constexpr double amplitudeTriangle = 0.625;
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static constexpr double amplitudeSaw = 0.515;
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static constexpr double amplitudeSquare = 0.515;
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} // namespace config
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} // namespace sfz
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