mirror of https://github.com/axmolengine/axmol.git
54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
#ifndef CORE_MIXER_HRTFDEFS_H
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#define CORE_MIXER_HRTFDEFS_H
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#include <array>
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#include "alspan.h"
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#include "core/ambidefs.h"
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#include "core/bufferline.h"
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#include "core/filters/splitter.h"
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using float2 = std::array<float,2>;
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using ubyte = unsigned char;
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using ubyte2 = std::array<ubyte,2>;
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using ushort = unsigned short;
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using uint = unsigned int;
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using uint2 = std::array<uint,2>;
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constexpr uint HrtfHistoryBits{6};
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constexpr uint HrtfHistoryLength{1 << HrtfHistoryBits};
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constexpr uint HrtfHistoryMask{HrtfHistoryLength - 1};
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constexpr uint HrirBits{7};
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constexpr uint HrirLength{1 << HrirBits};
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constexpr uint HrirMask{HrirLength - 1};
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constexpr uint MinIrLength{8};
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using HrirArray = std::array<float2,HrirLength>;
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using HrirSpan = al::span<float2,HrirLength>;
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using ConstHrirSpan = al::span<const float2,HrirLength>;
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struct MixHrtfFilter {
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const ConstHrirSpan Coeffs;
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uint2 Delay;
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float Gain;
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float GainStep;
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};
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struct HrtfFilter {
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alignas(16) HrirArray Coeffs;
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uint2 Delay;
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float Gain;
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};
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struct HrtfChannelState {
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BandSplitter mSplitter;
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float mHfScale{};
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alignas(16) HrirArray mCoeffs{};
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};
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#endif /* CORE_MIXER_HRTFDEFS_H */
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