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Diffstat (limited to 'gst/modplug/libmodplug/snd_dsp.cpp')
-rw-r--r--gst/modplug/libmodplug/snd_dsp.cpp489
1 files changed, 0 insertions, 489 deletions
diff --git a/gst/modplug/libmodplug/snd_dsp.cpp b/gst/modplug/libmodplug/snd_dsp.cpp
deleted file mode 100644
index 54a06360b..000000000
--- a/gst/modplug/libmodplug/snd_dsp.cpp
+++ /dev/null
@@ -1,489 +0,0 @@
-/*
- * This source code is public domain.
- *
- * Authors: Olivier Lapicque <olivierl@jps.net>
-*/
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "stdafx.h"
-#include "sndfile.h"
-
-#ifdef FASTSOUNDLIB
-#define NO_REVERB
-#endif
-
-
-// Delayed Surround Filters
-#ifndef FASTSOUNDLIB
-#define nDolbyHiFltAttn 6
-#define nDolbyHiFltMask 3
-#define DOLBYATTNROUNDUP 31
-#else
-#define nDolbyHiFltAttn 3
-#define nDolbyHiFltMask 3
-#define DOLBYATTNROUNDUP 3
-#endif
-
-// Bass Expansion
-#define XBASS_DELAY 14 // 2.5 ms
-
-// Buffer Sizes
-#define XBASSBUFFERSIZE 64 // 2 ms at 50KHz
-#define FILTERBUFFERSIZE 64 // 1.25 ms
-#define SURROUNDBUFFERSIZE ((MAX_SAMPLE_RATE * 50) / 1000)
-#define REVERBBUFFERSIZE ((MAX_SAMPLE_RATE * 200) / 1000)
-#define REVERBBUFFERSIZE2 ((REVERBBUFFERSIZE*13) / 17)
-#define REVERBBUFFERSIZE3 ((REVERBBUFFERSIZE*7) / 13)
-#define REVERBBUFFERSIZE4 ((REVERBBUFFERSIZE*7) / 19)
-
-
-// DSP Effects: PUBLIC members
-UINT CSoundFile::m_nXBassDepth = 6;
-UINT CSoundFile::m_nXBassRange = XBASS_DELAY;
-UINT CSoundFile::m_nReverbDepth = 1;
-UINT CSoundFile::m_nReverbDelay = 100;
-UINT CSoundFile::m_nProLogicDepth = 12;
-UINT CSoundFile::m_nProLogicDelay = 20;
-
-////////////////////////////////////////////////////////////////////
-// DSP Effects internal state
-
-// Bass Expansion: low-pass filter
-static LONG nXBassSum = 0;
-static LONG nXBassBufferPos = 0;
-static LONG nXBassDlyPos = 0;
-static LONG nXBassMask = 0;
-
-// Noise Reduction: simple low-pass filter
-static LONG nLeftNR = 0;
-static LONG nRightNR = 0;
-
-// Surround Encoding: 1 delay line + low-pass filter + high-pass filter
-static LONG nSurroundSize = 0;
-static LONG nSurroundPos = 0;
-static LONG nDolbyDepth = 0;
-static LONG nDolbyLoDlyPos = 0;
-static LONG nDolbyLoFltPos = 0;
-static LONG nDolbyLoFltSum = 0;
-static LONG nDolbyHiFltPos = 0;
-static LONG nDolbyHiFltSum = 0;
-
-// Reverb: 4 delay lines + high-pass filter + low-pass filter
-#ifndef NO_REVERB
-static LONG nReverbSize = 0;
-static LONG nReverbBufferPos = 0;
-static LONG nReverbSize2 = 0;
-static LONG nReverbBufferPos2 = 0;
-static LONG nReverbSize3 = 0;
-static LONG nReverbBufferPos3 = 0;
-static LONG nReverbSize4 = 0;
-static LONG nReverbBufferPos4 = 0;
-static LONG nReverbLoFltSum = 0;
-static LONG nReverbLoFltPos = 0;
-static LONG nReverbLoDlyPos = 0;
-static LONG nFilterAttn = 0;
-static LONG gRvbLowPass[8];
-static LONG gRvbLPPos = 0;
-static LONG gRvbLPSum = 0;
-static LONG ReverbLoFilterBuffer[XBASSBUFFERSIZE];
-static LONG ReverbLoFilterDelay[XBASSBUFFERSIZE];
-static LONG ReverbBuffer[REVERBBUFFERSIZE];
-static LONG ReverbBuffer2[REVERBBUFFERSIZE2];
-static LONG ReverbBuffer3[REVERBBUFFERSIZE3];
-static LONG ReverbBuffer4[REVERBBUFFERSIZE4];
-#endif
-static LONG XBassBuffer[XBASSBUFFERSIZE];
-static LONG XBassDelay[XBASSBUFFERSIZE];
-static LONG DolbyLoFilterBuffer[XBASSBUFFERSIZE];
-static LONG DolbyLoFilterDelay[XBASSBUFFERSIZE];
-static LONG DolbyHiFilterBuffer[FILTERBUFFERSIZE];
-static LONG SurroundBuffer[SURROUNDBUFFERSIZE];
-
-// Access the main temporary mix buffer directly: avoids an extra pointer
-extern int MixSoundBuffer[MIXBUFFERSIZE*2];
-//cextern int MixReverbBuffer[MIXBUFFERSIZE*2];
-extern int MixReverbBuffer[MIXBUFFERSIZE*2];
-
-static UINT GetMaskFromSize(UINT len)
-//-----------------------------------
-{
- UINT n = 2;
- while (n <= len) n <<= 1;
- return ((n >> 1) - 1);
-}
-
-
-void CSoundFile::InitializeDSP(BOOL bReset)
-//-----------------------------------------
-{
- if (!m_nReverbDelay) m_nReverbDelay = 100;
- if (!m_nXBassRange) m_nXBassRange = XBASS_DELAY;
- if (!m_nProLogicDelay) m_nProLogicDelay = 20;
- if (m_nXBassDepth > 8) m_nXBassDepth = 8;
- if (m_nXBassDepth < 2) m_nXBassDepth = 2;
- if (bReset)
- {
- // Noise Reduction
- nLeftNR = nRightNR = 0;
- }
- // Pro-Logic Surround
- nSurroundPos = nSurroundSize = 0;
- nDolbyLoFltPos = nDolbyLoFltSum = nDolbyLoDlyPos = 0;
- nDolbyHiFltPos = nDolbyHiFltSum = 0;
- if (gdwSoundSetup & SNDMIX_SURROUND)
- {
- memset(DolbyLoFilterBuffer, 0, sizeof(DolbyLoFilterBuffer));
- memset(DolbyHiFilterBuffer, 0, sizeof(DolbyHiFilterBuffer));
- memset(DolbyLoFilterDelay, 0, sizeof(DolbyLoFilterDelay));
- memset(SurroundBuffer, 0, sizeof(SurroundBuffer));
- nSurroundSize = (gdwMixingFreq * m_nProLogicDelay) / 1000;
- if (nSurroundSize > SURROUNDBUFFERSIZE) nSurroundSize = SURROUNDBUFFERSIZE;
- if (m_nProLogicDepth < 8) nDolbyDepth = (32 >> m_nProLogicDepth) + 32;
- else nDolbyDepth = (m_nProLogicDepth < 16) ? (8 + (m_nProLogicDepth - 8) * 7) : 64;
- nDolbyDepth >>= 2;
- }
- // Reverb Setup
-#ifndef NO_REVERB
- if (gdwSoundSetup & SNDMIX_REVERB)
- {
- UINT nrs = (gdwMixingFreq * m_nReverbDelay) / 1000;
- UINT nfa = m_nReverbDepth+1;
- if (nrs > REVERBBUFFERSIZE) nrs = REVERBBUFFERSIZE;
- if ((bReset) || (nrs != (UINT)nReverbSize) || (nfa != (UINT)nFilterAttn))
- {
- nFilterAttn = nfa;
- nReverbSize = nrs;
- nReverbBufferPos = nReverbBufferPos2 = nReverbBufferPos3 = nReverbBufferPos4 = 0;
- nReverbLoFltSum = nReverbLoFltPos = nReverbLoDlyPos = 0;
- gRvbLPSum = gRvbLPPos = 0;
- nReverbSize2 = (nReverbSize * 13) / 17;
- if (nReverbSize2 > REVERBBUFFERSIZE2) nReverbSize2 = REVERBBUFFERSIZE2;
- nReverbSize3 = (nReverbSize * 7) / 13;
- if (nReverbSize3 > REVERBBUFFERSIZE3) nReverbSize3 = REVERBBUFFERSIZE3;
- nReverbSize4 = (nReverbSize * 7) / 19;
- if (nReverbSize4 > REVERBBUFFERSIZE4) nReverbSize4 = REVERBBUFFERSIZE4;
- memset(ReverbLoFilterBuffer, 0, sizeof(ReverbLoFilterBuffer));
- memset(ReverbLoFilterDelay, 0, sizeof(ReverbLoFilterDelay));
- memset(ReverbBuffer, 0, sizeof(ReverbBuffer));
- memset(ReverbBuffer2, 0, sizeof(ReverbBuffer2));
- memset(ReverbBuffer3, 0, sizeof(ReverbBuffer3));
- memset(ReverbBuffer4, 0, sizeof(ReverbBuffer4));
- memset(gRvbLowPass, 0, sizeof(gRvbLowPass));
- }
- } else nReverbSize = 0;
-#endif
- BOOL bResetBass = FALSE;
- // Bass Expansion Reset
- if (gdwSoundSetup & SNDMIX_MEGABASS)
- {
- UINT nXBassSamples = (gdwMixingFreq * m_nXBassRange) / 10000;
- if (nXBassSamples > XBASSBUFFERSIZE) nXBassSamples = XBASSBUFFERSIZE;
- UINT mask = GetMaskFromSize(nXBassSamples);
- if ((bReset) || (mask != (UINT)nXBassMask))
- {
- nXBassMask = mask;
- bResetBass = TRUE;
- }
- } else
- {
- nXBassMask = 0;
- bResetBass = TRUE;
- }
- if (bResetBass)
- {
- nXBassSum = nXBassBufferPos = nXBassDlyPos = 0;
- memset(XBassBuffer, 0, sizeof(XBassBuffer));
- memset(XBassDelay, 0, sizeof(XBassDelay));
- }
-}
-
-
-void CSoundFile::ProcessStereoDSP(int count)
-//------------------------------------------
-{
-#ifndef NO_REVERB
- // Reverb
- if (gdwSoundSetup & SNDMIX_REVERB)
- {
- int *pr = MixSoundBuffer, *pin = MixReverbBuffer, rvbcount = count;
- do
- {
- int echo = ReverbBuffer[nReverbBufferPos] + ReverbBuffer2[nReverbBufferPos2]
- + ReverbBuffer3[nReverbBufferPos3] + ReverbBuffer4[nReverbBufferPos4]; // echo = reverb signal
- // Delay line and remove Low Frequencies // v = original signal
- int echodly = ReverbLoFilterDelay[nReverbLoDlyPos]; // echodly = delayed signal
- ReverbLoFilterDelay[nReverbLoDlyPos] = echo >> 1;
- nReverbLoDlyPos++;
- nReverbLoDlyPos &= 0x1F;
- int n = nReverbLoFltPos;
- nReverbLoFltSum -= ReverbLoFilterBuffer[n];
- int tmp = echo / 128;
- ReverbLoFilterBuffer[n] = tmp;
- nReverbLoFltSum += tmp;
- echodly -= nReverbLoFltSum;
- nReverbLoFltPos = (n + 1) & 0x3F;
- // Reverb
- int v = (pin[0]+pin[1]) >> nFilterAttn;
- pr[0] += pin[0] + echodly;
- pr[1] += pin[1] + echodly;
- v += echodly >> 2;
- ReverbBuffer3[nReverbBufferPos3] = v;
- ReverbBuffer4[nReverbBufferPos4] = v;
- v += echodly >> 4;
- v >>= 1;
- gRvbLPSum -= gRvbLowPass[gRvbLPPos];
- gRvbLPSum += v;
- gRvbLowPass[gRvbLPPos] = v;
- gRvbLPPos++;
- gRvbLPPos &= 7;
- int vlp = gRvbLPSum >> 2;
- ReverbBuffer[nReverbBufferPos] = vlp;
- ReverbBuffer2[nReverbBufferPos2] = vlp;
- if (++nReverbBufferPos >= nReverbSize) nReverbBufferPos = 0;
- if (++nReverbBufferPos2 >= nReverbSize2) nReverbBufferPos2 = 0;
- if (++nReverbBufferPos3 >= nReverbSize3) nReverbBufferPos3 = 0;
- if (++nReverbBufferPos4 >= nReverbSize4) nReverbBufferPos4 = 0;
- pr += 2;
- pin += 2;
- } while (--rvbcount);
- }
-#endif
- // Dolby Pro-Logic Surround
- if (gdwSoundSetup & SNDMIX_SURROUND)
- {
- int *pr = MixSoundBuffer, n = nDolbyLoFltPos;
- for (int r=count; r; r--)
- {
- int v = (pr[0]+pr[1]+DOLBYATTNROUNDUP) >> (nDolbyHiFltAttn+1);
-#ifndef FASTSOUNDLIB
- v *= (int)nDolbyDepth;
-#endif
- // Low-Pass Filter
- nDolbyHiFltSum -= DolbyHiFilterBuffer[nDolbyHiFltPos];
- DolbyHiFilterBuffer[nDolbyHiFltPos] = v;
- nDolbyHiFltSum += v;
- v = nDolbyHiFltSum;
- nDolbyHiFltPos++;
- nDolbyHiFltPos &= nDolbyHiFltMask;
- // Surround
- int secho = SurroundBuffer[nSurroundPos];
- SurroundBuffer[nSurroundPos] = v;
- // Delay line and remove low frequencies
- v = DolbyLoFilterDelay[nDolbyLoDlyPos]; // v = delayed signal
- DolbyLoFilterDelay[nDolbyLoDlyPos] = secho; // secho = signal
- nDolbyLoDlyPos++;
- nDolbyLoDlyPos &= 0x1F;
- nDolbyLoFltSum -= DolbyLoFilterBuffer[n];
- int tmp = secho / 64;
- DolbyLoFilterBuffer[n] = tmp;
- nDolbyLoFltSum += tmp;
- v -= nDolbyLoFltSum;
- n++;
- n &= 0x3F;
- // Add echo
- pr[0] += v;
- pr[1] -= v;
- if (++nSurroundPos >= nSurroundSize) nSurroundPos = 0;
- pr += 2;
- }
- nDolbyLoFltPos = n;
- }
- // Bass Expansion
- if (gdwSoundSetup & SNDMIX_MEGABASS)
- {
- int *px = MixSoundBuffer;
- int xba = m_nXBassDepth+1, xbamask = (1 << xba) - 1;
- int n = nXBassBufferPos;
- for (int x=count; x; x--)
- {
- nXBassSum -= XBassBuffer[n];
- int tmp0 = px[0] + px[1];
- int tmp = (tmp0 + ((tmp0 >> 31) & xbamask)) >> xba;
- XBassBuffer[n] = tmp;
- nXBassSum += tmp;
- int v = XBassDelay[nXBassDlyPos];
- XBassDelay[nXBassDlyPos] = px[0];
- px[0] = v + nXBassSum;
- v = XBassDelay[nXBassDlyPos+1];
- XBassDelay[nXBassDlyPos+1] = px[1];
- px[1] = v + nXBassSum;
- nXBassDlyPos = (nXBassDlyPos + 2) & nXBassMask;
- px += 2;
- n++;
- n &= nXBassMask;
- }
- nXBassBufferPos = n;
- }
- // Noise Reduction
- if (gdwSoundSetup & SNDMIX_NOISEREDUCTION)
- {
- int n1 = nLeftNR, n2 = nRightNR;
- int *pnr = MixSoundBuffer;
- for (int nr=count; nr; nr--)
- {
- int vnr = pnr[0] >> 1;
- pnr[0] = vnr + n1;
- n1 = vnr;
- vnr = pnr[1] >> 1;
- pnr[1] = vnr + n2;
- n2 = vnr;
- pnr += 2;
- }
- nLeftNR = n1;
- nRightNR = n2;
- }
-}
-
-
-void CSoundFile::ProcessMonoDSP(int count)
-//----------------------------------------
-{
-#ifndef NO_REVERB
- // Reverb
- if (gdwSoundSetup & SNDMIX_REVERB)
- {
- int *pr = MixSoundBuffer, rvbcount = count, *pin = MixReverbBuffer;
- do
- {
- int echo = ReverbBuffer[nReverbBufferPos] + ReverbBuffer2[nReverbBufferPos2]
- + ReverbBuffer3[nReverbBufferPos3] + ReverbBuffer4[nReverbBufferPos4]; // echo = reverb signal
- // Delay line and remove Low Frequencies // v = original signal
- int echodly = ReverbLoFilterDelay[nReverbLoDlyPos]; // echodly = delayed signal
- ReverbLoFilterDelay[nReverbLoDlyPos] = echo >> 1;
- nReverbLoDlyPos++;
- nReverbLoDlyPos &= 0x1F;
- int n = nReverbLoFltPos;
- nReverbLoFltSum -= ReverbLoFilterBuffer[n];
- int tmp = echo / 128;
- ReverbLoFilterBuffer[n] = tmp;
- nReverbLoFltSum += tmp;
- echodly -= nReverbLoFltSum;
- nReverbLoFltPos = (n + 1) & 0x3F;
- // Reverb
- int v = pin[0] >> (nFilterAttn-1);
- *pr++ += pin[0] + echodly;
- pin++;
- v += echodly >> 2;
- ReverbBuffer3[nReverbBufferPos3] = v;
- ReverbBuffer4[nReverbBufferPos4] = v;
- v += echodly >> 4;
- v >>= 1;
- gRvbLPSum -= gRvbLowPass[gRvbLPPos];
- gRvbLPSum += v;
- gRvbLowPass[gRvbLPPos] = v;
- gRvbLPPos++;
- gRvbLPPos &= 7;
- int vlp = gRvbLPSum >> 2;
- ReverbBuffer[nReverbBufferPos] = vlp;
- ReverbBuffer2[nReverbBufferPos2] = vlp;
- if (++nReverbBufferPos >= nReverbSize) nReverbBufferPos = 0;
- if (++nReverbBufferPos2 >= nReverbSize2) nReverbBufferPos2 = 0;
- if (++nReverbBufferPos3 >= nReverbSize3) nReverbBufferPos3 = 0;
- if (++nReverbBufferPos4 >= nReverbSize4) nReverbBufferPos4 = 0;
- } while (--rvbcount);
- }
-#endif
- // Bass Expansion
- if (gdwSoundSetup & SNDMIX_MEGABASS)
- {
- int *px = MixSoundBuffer;
- int xba = m_nXBassDepth, xbamask = (1 << xba)-1;
- int n = nXBassBufferPos;
- for (int x=count; x; x--)
- {
- nXBassSum -= XBassBuffer[n];
- int tmp0 = *px;
- int tmp = (tmp0 + ((tmp0 >> 31) & xbamask)) >> xba;
- XBassBuffer[n] = tmp;
- nXBassSum += tmp;
- int v = XBassDelay[nXBassDlyPos];
- XBassDelay[nXBassDlyPos] = *px;
- *px++ = v + nXBassSum;
- nXBassDlyPos = (nXBassDlyPos + 2) & nXBassMask;
- n++;
- n &= nXBassMask;
- }
- nXBassBufferPos = n;
- }
- // Noise Reduction
- if (gdwSoundSetup & SNDMIX_NOISEREDUCTION)
- {
- int n = nLeftNR;
- int *pnr = MixSoundBuffer;
- for (int nr=count; nr; pnr++, nr--)
- {
- int vnr = *pnr >> 1;
- *pnr = vnr + n;
- n = vnr;
- }
- nLeftNR = n;
- }
-}
-
-
-/////////////////////////////////////////////////////////////////
-// Clean DSP Effects interface
-
-// [Reverb level 0(quiet)-100(loud)], [delay in ms, usually 40-200ms]
-BOOL CSoundFile::SetReverbParameters(UINT nDepth, UINT nDelay)
-//------------------------------------------------------------
-{
- if (nDepth > 100) nDepth = 100;
- UINT gain = nDepth / 20;
- if (gain > 4) gain = 4;
- m_nReverbDepth = 4 - gain;
- if (nDelay < 40) nDelay = 40;
- if (nDelay > 250) nDelay = 250;
- m_nReverbDelay = nDelay;
- return TRUE;
-}
-
-
-// [XBass level 0(quiet)-100(loud)], [cutoff in Hz 20-100]
-BOOL CSoundFile::SetXBassParameters(UINT nDepth, UINT nRange)
-//-----------------------------------------------------------
-{
- if (nDepth > 100) nDepth = 100;
- UINT gain = nDepth / 20;
- if (gain > 4) gain = 4;
- m_nXBassDepth = 8 - gain; // filter attenuation 1/256 .. 1/16
- UINT range = nRange / 5;
- if (range > 5) range -= 5; else range = 0;
- if (nRange > 16) nRange = 16;
- m_nXBassRange = 21 - range; // filter average on 0.5-1.6ms
- return TRUE;
-}
-
-
-// [Surround level 0(quiet)-100(heavy)] [delay in ms, usually 5-50ms]
-BOOL CSoundFile::SetSurroundParameters(UINT nDepth, UINT nDelay)
-//--------------------------------------------------------------
-{
- UINT gain = (nDepth * 16) / 100;
- if (gain > 16) gain = 16;
- if (gain < 1) gain = 1;
- m_nProLogicDepth = gain;
- if (nDelay < 4) nDelay = 4;
- if (nDelay > 50) nDelay = 50;
- m_nProLogicDelay = nDelay;
- return TRUE;
-}
-
-BOOL CSoundFile::SetWaveConfigEx(BOOL bSurround,BOOL bNoOverSampling,BOOL bReverb,BOOL hqido,BOOL bMegaBass,BOOL bNR,BOOL bEQ)
-//----------------------------------------------------------------------------------------------------------------------------
-{
- DWORD d = gdwSoundSetup & ~(SNDMIX_SURROUND | SNDMIX_NORESAMPLING | SNDMIX_REVERB | SNDMIX_HQRESAMPLER | SNDMIX_MEGABASS | SNDMIX_NOISEREDUCTION | SNDMIX_EQ);
- if (bSurround) d |= SNDMIX_SURROUND;
- if (bNoOverSampling) d |= SNDMIX_NORESAMPLING;
- if (bReverb) d |= SNDMIX_REVERB;
- if (hqido) d |= SNDMIX_HQRESAMPLER;
- if (bMegaBass) d |= SNDMIX_MEGABASS;
- if (bNR) d |= SNDMIX_NOISEREDUCTION;
- if (bEQ) d |= SNDMIX_EQ;
- gdwSoundSetup = d;
- InitPlayer(FALSE);
- return TRUE;
-}