mirror of https://github.com/AxioDL/metaforce.git
90 lines
2.0 KiB
C++
90 lines
2.0 KiB
C++
#pragma once
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#include "DNACommon.hpp"
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#include <cmath>
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namespace DataSpec::DNAANIM
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{
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struct Value
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{
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athena::simd<float> simd;
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Value() = default;
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Value(const athena::simd<float>& s) : simd(s) {}
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Value(const atVec3f& v) : simd(v.simd) {}
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Value(const atVec4f& v) : simd(v.simd) {}
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Value(float x, float y, float z) : simd(x, y, z, 0.f) {}
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Value(float w, float x, float y, float z) : simd(w, x, y, z) {}
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};
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struct QuantizedValue
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{
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atInt32 v[4];
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atInt32& operator[] (size_t idx)
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{return v[idx];}
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atInt32 operator[] (size_t idx) const
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{return v[idx];}
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int qFrom(const QuantizedValue& other, size_t idx) const
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{
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atInt32 delta = std::abs(v[idx] - other.v[idx]);
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if (delta == 0)
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return 1;
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return int(std::ceil(std::log2(delta))) + 1;
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}
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};
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struct QuantizedRot
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{
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QuantizedValue v;
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bool w;
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};
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struct Channel
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{
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enum class Type
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{
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Rotation,
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Translation,
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Scale,
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KfHead,
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RotationMP3
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} type;
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atInt32 id = -1;
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QuantizedValue i = {};
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atUint8 q[4] = {};
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};
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size_t ComputeBitstreamSize(size_t keyFrameCount, const std::vector<Channel>& channels);
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class BitstreamReader
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{
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size_t m_bitCur;
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atInt32 dequantize(const atUint8* data, atUint8 q);
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bool dequantizeBit(const atUint8* data);
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public:
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std::vector<std::vector<Value>>
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read(const atUint8* data,
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size_t keyFrameCount,
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const std::vector<Channel>& channels,
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atUint32 rotDiv,
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float transMult,
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float scaleMult);
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};
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class BitstreamWriter
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{
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size_t m_bitCur;
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void quantize(atUint8* data, atUint8 q, atInt32 val);
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void quantizeBit(atUint8* data, bool val);
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public:
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std::unique_ptr<atUint8[]>
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write(const std::vector<std::vector<Value>>& chanKeys,
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size_t keyFrameCount, std::vector<Channel>& channels,
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atUint32 quantRange,
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atUint32& rotDivOut,
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float& transMultOut,
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float& scaleMultOut,
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size_t& sizeOut);
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};
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}
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