A few more questions about porting

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Socoder -> C/C++/C#/Other -> A few more questions about porting
Wed, 18 Jan 2012, 13:22
Afr0	I have some more questions about porting from C to C#, so I'm just going to throw 'em all in here. //memset(&Window[0], 0, 5sizeof(float)); Array.Clear(Window, 0, 5); //memset(&Window[113], 0, 5 sizeof(float)); Array.Clear(Window, 113, 5); --v Is this correct? What about below? //memcpy(p->Delay, &p->DecompressedBlock[108], 324sizeof(float)); Array.Copy(P.Delay, 0, P.DecompressedBlock, 108, 324); --v And this? //memcpy(&M2[1], c2, 11sizeof(float)); for (int i = 1; i < 12; i++) Matrix2[i] = *C2++; --v (Yes I am using pointers in C# because this algorithm is extremely slow!) -=-=- Afr0 Games Project Dollhouse on Github - Please fork!
Sat, 21 Jan 2012, 01:01
Afr0	Ugh, I gave up and decided to just do it using PInvoke instead. If anyone's interested, here are the function definitions: using System; using System.Collections.Generic; using System.Text; using System.Runtime.InteropServices; namespace SimsLib.UTK { /// <summary> /// Imported functions from "utkx64.dll"/"utkx32.dll". /// utk_decode should not be called on its own, use the /// UTKWrapper class. /// </summary> public class UTKFunctions { /// <summary> /// Generates tables used by the UTalk decompression function. /// Should only be called once, as it is quite memory intensive. /// </summary> [DllImport("utalkx64.dll")] public static extern void UTKGenerateTables(); [DllImport("utalkx64.dll")] public static unsafe extern void utk_decode(byte* InBuffer, byte* OutBuffer, uint Frames); } } --v The wrapper: using System; using System.Collections.Generic; using System.Text; using System.IO; namespace SimsLib.UTK { /// <summary> /// Implements a wrapper for the original UTalk decompression code written by X-Fi6 (alias Fatbag). /// NOTE: A program that uses this wrapper HAS to be run as an administrator in Win7/Vista, or it will /// cause an exception in the DLL for trying to access protected memory. /// </summary> public class UTKWrapper { private ushort m_FormatTag, m_NumChannels; private uint m_SamplesPerSec, m_AvgBytesPerSec; private ushort m_BlockAlign, m_BitsPerSample; private uint m_AppendSize; private uint m_Frames; //How many frames the UTK-file consists of. private byte[] m_OutBuffer; //The buffer containing the decompressed UTK data. /// <summary> /// Returns the decompressed buffer plus a wav header, so that the UTalk /// sound can be played back as a wav-file. /// </summary> public byte[] Wav { get { MemoryStream MemStream = new MemoryStream(); BinaryWriter Writer = new BinaryWriter(MemStream); Writer.Write(new char[] { 'R', 'I', 'F', 'F' }); Writer.Write((uint)(m_OutBuffer.Length + 36)); //Size of file minus this field and the above field. Writer.Write(new char[] { 'W', 'A', 'V', 'E', 'f', 'm', 't', ' ' }); Writer.Write((uint)16); //Size of WAVEFORMATEX structure (all the data that comes after this field). Writer.Write(m_FormatTag); Writer.Write(m_NumChannels); Writer.Write(m_SamplesPerSec); Writer.Write(m_AvgBytesPerSec); Writer.Write(m_BlockAlign); Writer.Write(m_BitsPerSample); Writer.Write(new char[] { 'd', 'a', 't', 'a' }); Writer.Write((uint)m_OutBuffer.Length); Writer.Write(m_OutBuffer); return MemStream.ToArray(); } } public UTKWrapper() { m_OutBuffer = new byte[10]; } public unsafe void LoadUTK(string Path) { BinaryReader Reader = new BinaryReader(File.Open(Path, FileMode.Open)); string ID = new string(Reader.ReadChars(4)); uint DecompressedSize = Reader.ReadUInt32(); uint WaveFormatXSize = Reader.ReadUInt32(); m_FormatTag = Reader.ReadUInt16(); m_NumChannels = Reader.ReadUInt16(); m_SamplesPerSec = Reader.ReadUInt32(); m_AvgBytesPerSec = Reader.ReadUInt32(); m_BlockAlign = Reader.ReadUInt16(); m_BitsPerSample = Reader.ReadUInt16(); m_AppendSize = Reader.ReadUInt32(); m_Frames = DecompressedSize / m_BlockAlign; byte[] InBuffer = Reader.ReadBytes((int)(Reader.BaseStream.Length - 36)); m_OutBuffer = new byte[DecompressedSize]; fixed (byte* InBufferPtr = &InBuffer[0]) { fixed (byte* OutBufferPtr = &m_OutBuffer[0]) UTKFunctions.utk_decode(InBufferPtr, OutBufferPtr, m_Frames); } } } } --v And the C-header (compiled as CPP): /* read_utk.h - Copyright (c) 2011-2012 Fatbag <X-Fi6@phppoll.org> Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. / #include <stdlib.h> #include <string.h> #include "stdint.h" #include <windows.h> typedef struct { char sID[4]; DWORD dwOutSize; DWORD dwWfxSize; / WAVEFORMATEX / WORD wFormatTag; WORD nChannels; DWORD nSamplesPerSec; DWORD nAvgBytesPerSec; WORD nBlockAlign; WORD wBitsPerSample; DWORD cbSize; unsigned Frames; unsigned UTKDataSize; } utkheader_t; typedef struct { const uint8_t InData; unsigned UnreadBitsValue, UnreadBitsCount; int UseLattice; unsigned NoiseFloor; float FixedCodebook[64]; /* Fixed codebook gain matrix / float ImpulseTrain[12]; / Impulse train matrix / float R[12]; / Autocorrelation coefficient matrix / float Delay[324]; float DecompressedBlock[432]; } utkparams_t; #ifdef __cplusplus extern "C" { #endif extern "C" __declspec(dllexport) int utk_read_header(utkheader_t UTKHeader, const uint8_t * Buffer, unsigned FileSize); extern "C" __declspec(dllexport) int utk_decode(const uint8_t __restrict InBuffer, uint8_t __restrict OutBuffer, unsigned Frames); extern "C" __declspec(dllexport) void UTKGenerateTables(void); /uint8_t ReadCC(utkparams_t p, uint8_t bits);/ void SetUTKParameters(utkparams_t p); void DecompressBlock(utkparams_t p); void LatticeFilter(utkparams_t p, int Voiced, float * Window, int Interval); void Synthesize(utkparams_t p, unsigned Sample, unsigned Blocks); void PredictionFilter(const float __restrict c2, float *__restrict Residual); #ifdef __cplusplus } #endif --v If you're interested in learning Simlish, this is your chance! -=-=- Afr0 Games Project Dollhouse on Github - Please fork!