mirror of
https://github.com/AndroidAudioMods/ViPERFX_RE.git
synced 2025-06-08 02:29:40 +08:00
326 lines
12 KiB
C++
326 lines
12 KiB
C++
#include "Convolver.h"
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#include <constants.h>
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#include <cstring>
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#include <cstddef>
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Convolver::Convolver() {
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this->enable = false;
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this->samplingRate = VIPER_DEFAULT_SAMPLING_RATE;
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this->waveBufferL = new WaveBuffer(2, 0x1000);
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this->waveBufferR = new WaveBuffer(2, 0x1000);
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memset(this->kernelFilePath, 0, sizeof(this->kernelFilePath));
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this->kernelId = 0;
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this->unknown1 = nullptr;
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this->unknown2 = 0;
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this->crossChannel = 0.0;
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this->unknown3 = 0;
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this->unknown4 = 0;
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this->currentKernelBufferCrc = 0;
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}
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Convolver::~Convolver() {
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delete this->waveBufferL;
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delete this->waveBufferR;
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delete[] this->unknown1;
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}
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static uint32_t calculate_crc32(const uint8_t *data, uint32_t length) {
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static const uint32_t crc_table[256] = {
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// Precomputed CRC32 table
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// This is used to speed up the CRC32 calculation
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// Instead of computing the CRC32 from scratch each time,
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// we can use this table to lookup the CRC32 for each byte
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// in the input data.
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0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3, 0x0EDB8832,
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0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91, 0x1DB71064, 0x6AB020F2,
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0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7, 0x136C9856, 0x646BA8C0, 0xFD62F97A,
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0x8A65C9EC, 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5, 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
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0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, 0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3,
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0x45DF5C75, 0xDCD60DCF, 0xABD13D59, 0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423,
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0xCFBA9599, 0xB8BDA50F, 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, 0x2F6F7C87, 0x58684C11, 0xC1611DAB,
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0xB6662D3D, 0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
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0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01, 0x6B6B51F4,
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0x1C6C6162, 0x856530D8, 0xF262004E, 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, 0x65B0D9C6, 0x12B7E950,
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0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65, 0x4DB26158, 0x3AB551CE, 0xA3BC0074,
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0xD4BB30E2, 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB, 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
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0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, 0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, 0x5768B525,
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0x206F85B3, 0xB966D409, 0xCE61E49F, 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81,
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0xB7BD5C3B, 0xC0BA6CAD, 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, 0xEAD54739, 0x9DD277AF, 0x04DB2615,
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0x73DC1683, 0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
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0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7, 0xFED41B76,
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0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, 0xD6D6A3E8, 0xA1D1937E,
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0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B, 0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6,
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0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79, 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
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0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, 0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7,
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0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D, 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F,
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0x72076785, 0x05005713, 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7,
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0x0BDBDF21, 0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
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0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45, 0xA00AE278,
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0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB, 0xAED16A4A, 0xD9D65ADC,
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0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9, 0xBDBDF21C, 0xCABAC28A, 0x53B39330,
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0x24B4A3A6, 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF, 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
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0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
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};
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uint32_t crc = 0xffffffff; // Initialize CRC32 to all 1s
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// Loop through each byte in the input data
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for (uint32_t i = 0; i < length; ++i) {
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uint8_t byte = data[i];
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// Use the lookup table to update the CRC32 value
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crc = crc_table[(crc ^ byte) & 0xff] ^ (crc >> 8);
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}
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// Return the bitwise complement of the final CRC32 value
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return ~crc;
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}
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void Convolver::CommitKernelBuffer(uint32_t param_1, uint32_t param_2, uint32_t kernelId) {
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if (this->unknown1 == nullptr) {
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this->unknown2 = 0;
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this->unknown3 = 0;
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this->unknown4 = 0;
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return;
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}
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if (this->unknown2 != param_1) {
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delete[] this->unknown1;
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this->unknown1 = nullptr;
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this->unknown2 = 0;
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this->unknown3 = 0;
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this->unknown4 = 0;
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return;
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}
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if (this->unknown3 == 0) {
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delete[] this->unknown1;
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this->unknown1 = nullptr;
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this->unknown2 = 0;
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this->unknown3 = 0;
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this->unknown4 = 0;
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return;
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}
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uint32_t calculatedCrc = calculate_crc32((uint8_t *) this->unknown1, this->unknown3 * 4);
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if (this->unknown4 - 1 > 1 || calculatedCrc != param_2 || calculatedCrc == this->currentKernelBufferCrc) {
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delete[] this->unknown1;
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this->unknown1 = nullptr;
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this->unknown2 = 0;
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this->unknown3 = 0;
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this->unknown4 = 0;
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return;
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}
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this->currentKernelBufferCrc = calculatedCrc;
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if (this->unknown4 == 1) {
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int ret1 = this->kernelCh1.LoadKernel(this->unknown1, this->unknown3 / this->unknown4, 0x1000);
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int ret2 = this->kernelCh2.LoadKernel(this->unknown1, this->unknown3 / this->unknown4, 0x1000);
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if (ret1 == 0 || ret2 == 0) {
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this->kernelCh1.UnloadKernel();
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this->kernelCh2.UnloadKernel();
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this->currentKernelBufferCrc = 0;
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this->kernelId = 0;
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delete[] this->unknown1;
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this->unknown1 = nullptr;
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this->unknown2 = 0;
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this->unknown3 = 0;
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this->unknown4 = 0;
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Reset();
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return;
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}
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memset(this->kernelFilePath, 0, sizeof(this->kernelFilePath));
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this->kernelId = kernelId;
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delete[] this->unknown1;
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this->unknown1 = nullptr;
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this->unknown2 = 0;
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this->unknown3 = 0;
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this->unknown4 = 0;
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Reset();
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} else {
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float *newArray1 = new float[this->unknown3 / this->unknown4];
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float *newArray2 = new float[this->unknown3 / this->unknown4];
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for (size_t i = 0; i < this->unknown3 / this->unknown4; i++) {
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newArray1[i] = this->unknown1[i * 2];
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newArray2[i] = this->unknown1[i * 2 + 1];
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}
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int ret1 = this->kernelCh1.LoadKernel(newArray1, this->unknown3 / this->unknown4, 0x1000);
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int ret2 = this->kernelCh2.LoadKernel(newArray2, this->unknown3 / this->unknown4, 0x1000);
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if (ret1 == 0 || ret2 == 0) {
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this->kernelCh1.UnloadKernel();
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this->kernelCh2.UnloadKernel();
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this->currentKernelBufferCrc = 0;
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this->kernelId = 0;
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delete[] this->unknown1;
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this->unknown1 = nullptr;
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this->unknown2 = 0;
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this->unknown3 = 0;
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this->unknown4 = 0;
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Reset();
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return;
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}
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memset(this->kernelFilePath, 0, sizeof(this->kernelFilePath));
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this->kernelId = kernelId;
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delete[] this->unknown1;
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this->unknown1 = nullptr;
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this->unknown2 = 0;
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this->unknown3 = 0;
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this->unknown4 = 0;
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Reset();
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delete[] newArray1;
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delete[] newArray2;
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}
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}
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bool Convolver::GetEnabled() {
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return this->enable;
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}
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uint32_t Convolver::GetKernelID() {
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return this->kernelId;
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}
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void Convolver::PrepareKernelBuffer(uint32_t param_1, uint32_t param_2, int32_t param_3) {
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if (param_3 == 0) {
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if (param_2 - 1 < 2) {
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delete[] this->unknown1;
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this->unknown1 = nullptr;
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this->unknown2 = param_1;
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this->unknown3 = 0;
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this->unknown4 = param_2;
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}
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} else {
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delete[] this->unknown1;
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this->unknown1 = nullptr;
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this->unknown2 = 0;
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this->unknown3 = 0;
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this->unknown4 = 0;
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this->currentKernelBufferCrc = 0;
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this->kernelCh1.Reset();
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this->kernelCh2.Reset();
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this->kernelCh1.UnloadKernel();
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this->kernelCh2.UnloadKernel();
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memset(this->kernelFilePath, 0, sizeof(this->kernelFilePath));
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this->kernelId = 0;
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}
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}
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uint32_t Convolver::Process(float *source, float *dest, uint32_t frameSize) {
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if (this->enable &&
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this->kernelCh1.InstanceUsable() &&
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this->kernelCh2.InstanceUsable() &&
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this->waveBufferL->PushSamples(source, frameSize) != 0) {
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while (this->waveBufferL->GetBufferOffset() >= 0x1000) {
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float *bufPtr = this->waveBufferL->GetBuffer();
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this->kernelCh1.ConvolveInterleaved(bufPtr, 0);
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this->kernelCh2.ConvolveInterleaved(bufPtr, 1);
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if (isValidCrossChannel) {
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for (size_t i = 0; i < 32; i++) {
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// TODO: Do complicated stuff
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}
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}
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this->waveBufferR->PushSamples(bufPtr, 0x1000);
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this->waveBufferL->PopSamples(0x1000, true);
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}
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return this->waveBufferR->PopSamples(dest, frameSize, false);
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}
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return frameSize;
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}
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void Convolver::Reset() {
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this->waveBufferL->Reset();
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this->waveBufferR->Reset();
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this->kernelCh1.Reset();
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this->kernelCh2.Reset();
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}
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void Convolver::SetCrossChannel(float crossChannel) {
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if (crossChannel <= 0.0) {
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this->isValidCrossChannel = false;
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return;
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}
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if (crossChannel > 1.0) {
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crossChannel = 1.0;
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}
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this->crossChannel = crossChannel;
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this->isValidCrossChannel = true;
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}
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void Convolver::SetEnable(bool enabled) {
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if (this->enable != enabled) {
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if (enabled) {
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Reset();
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}
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this->enable = enabled;
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}
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}
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void Convolver::SetKernel(float *buf, uint32_t len) {
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if (len < 16) return;
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this->kernelCh1.Reset();
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this->kernelCh2.Reset();
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int ret1 = this->kernelCh1.LoadKernel(buf, len, 0x1000);
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int ret2 = this->kernelCh2.LoadKernel(buf, len, 0x1000);
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if (ret1 == 0 || ret2 == 0) {
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this->kernelCh1.UnloadKernel();
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this->kernelCh2.UnloadKernel();
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}
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this->kernelId = 0;
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this->currentKernelBufferCrc = 0;
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Reset();
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}
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void Convolver::SetKernelBuffer(uint32_t param_1, float *buf, uint32_t len) {
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if (buf == nullptr || len == 0) return;
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if (this->unknown2 != param_1) return;
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float *newArray = new float[(this->unknown3 + len) * 4];
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if (this->unknown1 != nullptr) {
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memcpy(newArray, this->unknown1, this->unknown3 * 4);
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delete[] this->unknown1;
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this->unknown1 = newArray;
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}
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memcpy(this->unknown1 + this->unknown3 * 4, buf, len * 4);
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this->unknown3 += len;
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}
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void Convolver::SetKernelStereo(float *param_1, float *param_2, uint32_t param_3) {
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if (param_3 < 16) return;
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this->kernelCh1.Reset();
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this->kernelCh2.Reset();
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int ret1 = this->kernelCh1.LoadKernel(param_1, param_3, 0x1000);
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int ret2 = this->kernelCh2.LoadKernel(param_2, param_3, 0x1000);
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if (ret1 == 0 || ret2 == 0) {
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this->kernelCh1.UnloadKernel();
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this->kernelCh2.UnloadKernel();
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}
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this->kernelId = 0;
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this->currentKernelBufferCrc = 0;
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Reset();
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}
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void Convolver::SetSamplingRate(uint32_t samplingRate) {
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if (this->samplingRate != samplingRate) {
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this->samplingRate = samplingRate;
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}
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}
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