83 lines
No EOL
1.8 KiB
C++
83 lines
No EOL
1.8 KiB
C++
#include "LinearEnvelope.h"
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#include "Helpers.h"
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#include "SIMDHelpers.h"
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#include <absl/algorithm/container.h>
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namespace sfz
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{
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template<class Type>
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LinearEnvelope<Type>::LinearEnvelope()
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{
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setMaxCapacity(maxCapacity);
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}
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template<class Type>
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LinearEnvelope<Type>::LinearEnvelope(int maxCapacity, std::function<Type(Type)> function)
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{
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setMaxCapacity(maxCapacity);
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setFunction(function);
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}
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template<class Type>
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void LinearEnvelope<Type>::setMaxCapacity(int maxCapacity)
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{
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events.reserve(maxCapacity);
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this->maxCapacity = maxCapacity;
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}
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template<class Type>
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void LinearEnvelope<Type>::setFunction(std::function<Type(Type)> function)
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{
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this->function = function;
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}
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template<class Type>
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void LinearEnvelope<Type>::registerEvent(int timestamp, Type inputValue)
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{
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if (static_cast<int>(events.size()) < maxCapacity)
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events.emplace_back(timestamp, function(inputValue));
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}
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template<class Type>
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void LinearEnvelope<Type>::clear()
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{
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events.clear();
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}
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template<class Type>
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void LinearEnvelope<Type>::reset(Type value)
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{
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clear();
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currentValue = function(value);
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}
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template<class Type>
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void LinearEnvelope<Type>::getBlock(absl::Span<Type> output)
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{
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absl::c_sort(events, [](const auto& lhs, const auto& rhs) {
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return lhs.first < rhs.first;
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});
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int index { 0 };
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for (auto& event: events)
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{
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const auto length = min(event.first, static_cast<int>(output.size())) - index;
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if (length == 0)
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{
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currentValue = event.second;
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continue;
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}
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const auto step = (event.second - currentValue) / length;
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currentValue = ::linearRamp<Type>(output.subspan(index, length), currentValue, step);
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index += length;
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}
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if (index < static_cast<int>(output.size()))
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::fill<Type>(output.subspan(index), currentValue);
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clear();
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}
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} |