mirror of https://github.com/AxioDL/metaforce.git
443 lines
14 KiB
C++
443 lines
14 KiB
C++
#include "zeus/Math.hpp"
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#include "ANIM.hpp"
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#define DUMP_KEYS 0
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namespace DataSpec::DNAANIM {
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size_t ComputeBitstreamSize(size_t keyFrameCount, const std::vector<Channel>& channels) {
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size_t bitsPerKeyFrame = 0;
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for (const Channel& chan : channels) {
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switch (chan.type) {
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case Channel::Type::Rotation:
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bitsPerKeyFrame += 1;
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[[fallthrough]];
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case Channel::Type::Translation:
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case Channel::Type::Scale:
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bitsPerKeyFrame += chan.q[0];
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bitsPerKeyFrame += chan.q[1];
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bitsPerKeyFrame += chan.q[2];
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break;
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case Channel::Type::KfHead:
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bitsPerKeyFrame += 1;
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break;
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case Channel::Type::RotationMP3:
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bitsPerKeyFrame += chan.q[0];
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bitsPerKeyFrame += chan.q[1];
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bitsPerKeyFrame += chan.q[2];
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bitsPerKeyFrame += chan.q[3];
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break;
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default:
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break;
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}
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}
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return (bitsPerKeyFrame * keyFrameCount + 31) / 32 * 4;
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}
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static inline QuantizedRot QuantizeRotation(const Value& quat, atUint32 div) {
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float q = M_PIF / 2.0f / float(div);
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zeus::simd_floats f(quat.simd);
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return {{
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atInt32(std::asin(f[1]) / q),
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atInt32(std::asin(f[2]) / q),
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atInt32(std::asin(f[3]) / q),
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},
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(f[0] < 0.f)};
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}
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static inline Value DequantizeRotation(const QuantizedRot& v, atUint32 div) {
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float q = M_PIF / 2.0f / float(div);
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athena::simd_floats f = {
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0.0f,
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std::sin(v.v[0] * q),
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std::sin(v.v[1] * q),
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std::sin(v.v[2] * q),
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};
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f[0] = std::sqrt(std::max((1.0f - (f[1] * f[1] + f[2] * f[2] + f[3] * f[3])), 0.0f));
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f[0] = v.w ? -f[0] : f[0];
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Value retval;
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retval.simd.copy_from(f);
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return retval;
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}
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static inline Value DequantizeRotation_3(const QuantizedRot& v, atUint32 div) {
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float q = 1.0f / float(div);
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athena::simd_floats f = {
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0.0f,
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v.v[0] * q,
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v.v[1] * q,
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v.v[2] * q,
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};
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f[0] = std::sqrt(std::max((1.0f - (f[1] * f[1] + f[2] * f[2] + f[3] * f[3])), 0.0f));
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f[0] = v.w ? -f[0] : f[0];
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Value retval;
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retval.simd.copy_from(f);
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return retval;
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}
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bool BitstreamReader::dequantizeBit(const atUint8* data) {
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atUint32 byteCur = (m_bitCur / 32) * 4;
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atUint32 bitRem = m_bitCur % 32;
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/* Fill 32 bit buffer with region containing bits */
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/* Make them least significant */
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atUint32 tempBuf = hecl::SBig(*reinterpret_cast<const atUint32*>(data + byteCur)) >> bitRem;
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/* That's it */
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m_bitCur += 1;
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return tempBuf & 0x1;
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}
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atInt32 BitstreamReader::dequantize(const atUint8* data, atUint8 q) {
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atUint32 byteCur = (m_bitCur / 32) * 4;
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atUint32 bitRem = m_bitCur % 32;
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/* Fill 32 bit buffer with region containing bits */
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/* Make them least significant */
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atUint32 tempBuf = hecl::SBig(*reinterpret_cast<const atUint32*>(data + byteCur)) >> bitRem;
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/* If this shift underflows the value, buffer the next 32 bits */
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/* And tack onto shifted buffer */
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if ((bitRem + q) > 32) {
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atUint32 tempBuf2 = hecl::SBig(*reinterpret_cast<const atUint32*>(data + byteCur + 4));
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tempBuf |= (tempBuf2 << (32 - bitRem));
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}
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/* Mask it */
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atUint32 mask = (1 << q) - 1;
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tempBuf &= mask;
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/* Sign extend */
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atUint32 sign = (tempBuf >> (q - 1)) & 0x1;
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if (sign)
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tempBuf |= ~0u << q;
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/* Return delta value */
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m_bitCur += q;
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return atInt32(tempBuf);
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}
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std::vector<std::vector<Value>> BitstreamReader::read(const atUint8* data, size_t keyFrameCount,
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const std::vector<Channel>& channels, atUint32 rotDiv,
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float transMult, float scaleMult) {
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m_bitCur = 0;
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std::vector<std::vector<Value>> chanKeys;
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std::vector<QuantizedValue> chanAccum;
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chanKeys.reserve(channels.size());
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chanAccum.reserve(channels.size());
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for (const Channel& chan : channels) {
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chanAccum.push_back(chan.i);
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chanKeys.emplace_back();
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std::vector<Value>& keys = chanKeys.back();
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keys.reserve(keyFrameCount);
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switch (chan.type) {
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case Channel::Type::Rotation: {
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QuantizedRot qr = {{chan.i[0], chan.i[1], chan.i[2]}, false};
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keys.emplace_back(DequantizeRotation(qr, rotDiv));
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break;
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}
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case Channel::Type::Translation: {
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keys.push_back({chan.i[0] * transMult, chan.i[1] * transMult, chan.i[2] * transMult});
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break;
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}
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case Channel::Type::Scale: {
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keys.push_back({chan.i[0] * scaleMult, chan.i[1] * scaleMult, chan.i[2] * scaleMult});
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break;
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}
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case Channel::Type::KfHead: {
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break;
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}
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case Channel::Type::RotationMP3: {
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QuantizedRot qr = {{chan.i[1], chan.i[2], chan.i[3]}, bool(chan.i[0] & 0x1)};
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keys.emplace_back(DequantizeRotation_3(qr, rotDiv));
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break;
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}
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default:
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break;
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}
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}
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for (size_t f = 0; f < keyFrameCount; ++f) {
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#if DUMP_KEYS
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fprintf(stderr, "\nFRAME %" PRISize " %u %u\n", f, (m_bitCur / 32) * 4, m_bitCur % 32);
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int lastId = -1;
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#endif
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auto kit = chanKeys.begin();
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auto ait = chanAccum.begin();
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for (const Channel& chan : channels) {
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#if DUMP_KEYS
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if (chan.id != lastId) {
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lastId = chan.id;
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fprintf(stderr, "\n");
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}
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#endif
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QuantizedValue& p = *ait;
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switch (chan.type) {
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case Channel::Type::Rotation: {
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bool wBit = dequantizeBit(data);
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p[0] += dequantize(data, chan.q[0]);
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p[1] += dequantize(data, chan.q[1]);
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p[2] += dequantize(data, chan.q[2]);
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QuantizedRot qr = {{p[0], p[1], p[2]}, wBit};
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kit->emplace_back(DequantizeRotation(qr, rotDiv));
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#if DUMP_KEYS
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fprintf(stderr, "%d R: %d %d %d %d\t", chan.id, wBit, p[0], p[1], p[2]);
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#endif
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break;
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}
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case Channel::Type::Translation: {
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atInt32 val1 = dequantize(data, chan.q[0]);
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p[0] += val1;
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atInt32 val2 = dequantize(data, chan.q[1]);
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p[1] += val2;
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atInt32 val3 = dequantize(data, chan.q[2]);
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p[2] += val3;
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kit->push_back({p[0] * transMult, p[1] * transMult, p[2] * transMult});
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#if DUMP_KEYS
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fprintf(stderr, "%d T: %d %d %d\t", chan.id, p[0], p[1], p[2]);
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#endif
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break;
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}
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case Channel::Type::Scale: {
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p[0] += dequantize(data, chan.q[0]);
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p[1] += dequantize(data, chan.q[1]);
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p[2] += dequantize(data, chan.q[2]);
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kit->push_back({p[0] * scaleMult, p[1] * scaleMult, p[2] * scaleMult});
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#if DUMP_KEYS
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fprintf(stderr, "%d S: %d %d %d\t", chan.id, p[0], p[1], p[2]);
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#endif
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break;
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}
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case Channel::Type::KfHead: {
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dequantizeBit(data);
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break;
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}
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case Channel::Type::RotationMP3: {
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atInt32 val1 = dequantize(data, chan.q[0]);
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p[0] += val1;
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atInt32 val2 = dequantize(data, chan.q[1]);
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p[1] += val2;
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atInt32 val3 = dequantize(data, chan.q[2]);
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p[2] += val3;
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atInt32 val4 = dequantize(data, chan.q[3]);
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p[3] += val4;
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QuantizedRot qr = {{p[1], p[2], p[3]}, bool(p[0] & 0x1)};
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kit->emplace_back(DequantizeRotation_3(qr, rotDiv));
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break;
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}
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default:
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break;
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}
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++kit;
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++ait;
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}
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#if DUMP_KEYS
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fprintf(stderr, "\n");
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#endif
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}
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return chanKeys;
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}
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void BitstreamWriter::quantizeBit(atUint8* data, bool val) {
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atUint32 byteCur = (m_bitCur / 32) * 4;
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atUint32 bitRem = m_bitCur % 32;
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/* Fill 32 bit buffer with region containing bits */
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/* Make them least significant */
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*(atUint32*)(data + byteCur) = hecl::SBig(hecl::SBig(*(atUint32*)(data + byteCur)) | (val << bitRem));
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m_bitCur += 1;
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}
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void BitstreamWriter::quantize(atUint8* data, atUint8 q, atInt32 val) {
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atUint32 byteCur = (m_bitCur / 32) * 4;
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atUint32 bitRem = m_bitCur % 32;
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atUint32 masked = val & ((1 << q) - 1);
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/* Fill 32 bit buffer with region containing bits */
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/* Make them least significant */
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*(atUint32*)(data + byteCur) = hecl::SBig(hecl::SBig(*(atUint32*)(data + byteCur)) | (masked << bitRem));
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/* If this shift underflows the value, buffer the next 32 bits */
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/* And tack onto shifted buffer */
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if ((bitRem + q) > 32) {
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*(atUint32*)(data + byteCur + 4) =
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hecl::SBig(hecl::SBig(*(atUint32*)(data + byteCur + 4)) | (masked >> (32 - bitRem)));
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}
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m_bitCur += q;
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}
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std::unique_ptr<atUint8[]> BitstreamWriter::write(const std::vector<std::vector<Value>>& chanKeys, size_t keyFrameCount,
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std::vector<Channel>& channels, atUint32 quantRange,
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atUint32& rotDivOut, float& transMultOut, float& scaleMultOut,
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size_t& sizeOut) {
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m_bitCur = 0;
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rotDivOut = quantRange; /* Normalized range of values */
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float quantRangeF = float(quantRange);
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/* Pre-pass to calculate translation multiplier */
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float maxTransVal = 0.0f;
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float maxScaleVal = 0.0f;
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auto kit = chanKeys.begin();
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for (Channel& chan : channels) {
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switch (chan.type) {
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case Channel::Type::Translation: {
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for (auto it = kit->begin(); it != kit->end(); ++it) {
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const Value* key = &*it;
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zeus::simd_floats f(key->simd);
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maxTransVal = std::max(maxTransVal, std::fabs(f[0]));
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maxTransVal = std::max(maxTransVal, std::fabs(f[1]));
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maxTransVal = std::max(maxTransVal, std::fabs(f[2]));
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}
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break;
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}
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case Channel::Type::Scale: {
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for (auto it = kit->begin(); it != kit->end(); ++it) {
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const Value* key = &*it;
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zeus::simd_floats f(key->simd);
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maxScaleVal = std::max(maxScaleVal, std::fabs(f[0]));
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maxScaleVal = std::max(maxScaleVal, std::fabs(f[1]));
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maxScaleVal = std::max(maxScaleVal, std::fabs(f[2]));
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}
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break;
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}
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default:
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break;
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}
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++kit;
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}
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transMultOut = maxTransVal / quantRangeF;
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scaleMultOut = maxScaleVal / quantRangeF;
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/* Output channel inits */
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std::vector<QuantizedValue> initVals;
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initVals.reserve(channels.size());
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kit = chanKeys.begin();
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for (Channel& chan : channels) {
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chan.q[0] = 1;
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chan.q[1] = 1;
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chan.q[2] = 1;
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switch (chan.type) {
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case Channel::Type::Rotation: {
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QuantizedRot qr = QuantizeRotation((*kit)[0], rotDivOut);
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chan.i = qr.v;
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initVals.push_back(chan.i);
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break;
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}
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case Channel::Type::Translation: {
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zeus::simd_floats f((*kit)[0].simd);
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chan.i = {atInt32(f[0] / transMultOut), atInt32(f[1] / transMultOut), atInt32(f[2] / transMultOut)};
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initVals.push_back(chan.i);
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break;
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}
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case Channel::Type::Scale: {
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zeus::simd_floats f((*kit)[0].simd);
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chan.i = {atInt32(f[0] / scaleMultOut), atInt32(f[1] / scaleMultOut), atInt32(f[2] / scaleMultOut)};
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initVals.push_back(chan.i);
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break;
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}
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default:
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break;
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}
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++kit;
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}
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/* Pre-pass to analyze quantization factors for channels */
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std::vector<QuantizedValue> lastVals = initVals;
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kit = chanKeys.begin();
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auto vit = lastVals.begin();
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for (Channel& chan : channels) {
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QuantizedValue& last = *vit++;
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switch (chan.type) {
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case Channel::Type::Rotation: {
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for (auto it = kit->begin() + 1; it != kit->end(); ++it) {
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QuantizedRot qrCur = QuantizeRotation(*it, rotDivOut);
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chan.q[0] = std::max(chan.q[0], atUint8(qrCur.v.qFrom(last, 0)));
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chan.q[1] = std::max(chan.q[1], atUint8(qrCur.v.qFrom(last, 1)));
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chan.q[2] = std::max(chan.q[2], atUint8(qrCur.v.qFrom(last, 2)));
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last = qrCur.v;
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}
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break;
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}
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case Channel::Type::Translation: {
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for (auto it = kit->begin() + 1; it != kit->end(); ++it) {
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zeus::simd_floats f(it->simd);
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QuantizedValue cur = {atInt32(f[0] / transMultOut), atInt32(f[1] / transMultOut), atInt32(f[2] / transMultOut)};
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chan.q[0] = std::max(chan.q[0], atUint8(cur.qFrom(last, 0)));
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chan.q[1] = std::max(chan.q[1], atUint8(cur.qFrom(last, 1)));
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chan.q[2] = std::max(chan.q[2], atUint8(cur.qFrom(last, 2)));
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last = cur;
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}
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break;
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}
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case Channel::Type::Scale: {
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for (auto it = kit->begin() + 1; it != kit->end(); ++it) {
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zeus::simd_floats f(it->simd);
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QuantizedValue cur = {atInt32(f[0] / scaleMultOut), atInt32(f[1] / scaleMultOut), atInt32(f[2] / scaleMultOut)};
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chan.q[0] = std::max(chan.q[0], atUint8(cur.qFrom(last, 0)));
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chan.q[1] = std::max(chan.q[1], atUint8(cur.qFrom(last, 1)));
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chan.q[2] = std::max(chan.q[2], atUint8(cur.qFrom(last, 2)));
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last = cur;
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}
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break;
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}
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default:
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break;
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}
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++kit;
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}
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/* Generate Bitstream */
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sizeOut = ComputeBitstreamSize(keyFrameCount, channels);
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std::unique_ptr<atUint8[]> newData(new atUint8[sizeOut]);
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memset(newData.get(), 0, sizeOut);
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lastVals = initVals;
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for (size_t f = 0; f < keyFrameCount; ++f) {
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kit = chanKeys.begin();
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vit = lastVals.begin();
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for (const Channel& chan : channels) {
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const Value& val = (*kit++)[f + 1];
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QuantizedValue& last = *vit++;
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switch (chan.type) {
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case Channel::Type::Rotation: {
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QuantizedRot qrCur = QuantizeRotation(val, rotDivOut);
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quantizeBit(newData.get(), qrCur.w);
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quantize(newData.get(), chan.q[0], qrCur.v[0] - last.v[0]);
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quantize(newData.get(), chan.q[1], qrCur.v[1] - last.v[1]);
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quantize(newData.get(), chan.q[2], qrCur.v[2] - last.v[2]);
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last = qrCur.v;
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break;
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}
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case Channel::Type::Translation: {
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zeus::simd_floats f(val.simd);
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QuantizedValue cur = {atInt32(f[0] / transMultOut), atInt32(f[1] / transMultOut), atInt32(f[2] / transMultOut)};
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quantize(newData.get(), chan.q[0], cur[0] - last[0]);
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quantize(newData.get(), chan.q[1], cur[1] - last[1]);
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quantize(newData.get(), chan.q[2], cur[2] - last[2]);
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last = cur;
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break;
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}
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case Channel::Type::Scale: {
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zeus::simd_floats f(val.simd);
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QuantizedValue cur = {atInt32(f[0] / scaleMultOut), atInt32(f[1] / scaleMultOut), atInt32(f[2] / scaleMultOut)};
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quantize(newData.get(), chan.q[0], cur[0] - last[0]);
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quantize(newData.get(), chan.q[1], cur[1] - last[1]);
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quantize(newData.get(), chan.q[2], cur[2] - last[2]);
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last = cur;
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break;
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}
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default:
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break;
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}
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}
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}
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return newData;
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}
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} // namespace DataSpec::DNAANIM
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