diff options
Diffstat (limited to 'src/thirdparty/SoundTouch/source/sse_optimized.cpp')
| -rw-r--r-- | src/thirdparty/SoundTouch/source/sse_optimized.cpp | 372 |
1 files changed, 0 insertions, 372 deletions
diff --git a/src/thirdparty/SoundTouch/source/sse_optimized.cpp b/src/thirdparty/SoundTouch/source/sse_optimized.cpp deleted file mode 100644 index 962dff056..000000000 --- a/src/thirdparty/SoundTouch/source/sse_optimized.cpp +++ /dev/null @@ -1,372 +0,0 @@ -////////////////////////////////////////////////////////////////////////////////
-///
-/// SSE optimized routines for Pentium-III, Athlon-XP and later CPUs. All SSE
-/// optimized functions have been gathered into this single source
-/// code file, regardless to their class or original source code file, in order
-/// to ease porting the library to other compiler and processor platforms.
-///
-/// The SSE-optimizations are programmed using SSE compiler intrinsics that
-/// are supported both by Microsoft Visual C++ and GCC compilers, so this file
-/// should compile with both toolsets.
-///
-/// NOTICE: If using Visual Studio 6.0, you'll need to install the "Visual C++
-/// 6.0 processor pack" update to support SSE instruction set. The update is
-/// available for download at Microsoft Developers Network, see here:
-/// http://msdn.microsoft.com/en-us/vstudio/aa718349.aspx
-///
-/// If the above URL is expired or removed, go to "http://msdn.microsoft.com" and
-/// perform a search with keywords "processor pack".
-///
-/// Author : Copyright (c) Olli Parviainen
-/// Author e-mail : oparviai 'at' iki.fi
-/// SoundTouch WWW: http://www.surina.net/soundtouch
-///
-////////////////////////////////////////////////////////////////////////////////
-//
-// Last changed : $Date: 2015-02-21 21:24:29 +0000 (Sat, 21 Feb 2015) $
-// File revision : $Revision: 4 $
-//
-// $Id: sse_optimized.cpp 202 2015-02-21 21:24:29Z oparviai $
-//
-////////////////////////////////////////////////////////////////////////////////
-//
-// License :
-//
-// SoundTouch audio processing library
-// Copyright (c) Olli Parviainen
-//
-// This library is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Lesser General Public
-// License as published by the Free Software Foundation; either
-// version 2.1 of the License, or (at your option) any later version.
-//
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-// Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public
-// License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-//
-////////////////////////////////////////////////////////////////////////////////
-
-#include "cpu_detect.h"
-#include "STTypes.h"
-
-using namespace soundtouch;
-
-#ifdef SOUNDTOUCH_ALLOW_SSE
-
-// SSE routines available only with float sample type
-
-//////////////////////////////////////////////////////////////////////////////
-//
-// implementation of SSE optimized functions of class 'TDStretchSSE'
-//
-//////////////////////////////////////////////////////////////////////////////
-
-#include "TDStretch.h"
-#include <xmmintrin.h>
-#include <math.h>
-
-// Calculates cross correlation of two buffers
-double TDStretchSSE::calcCrossCorr(const float *pV1, const float *pV2, double &anorm) const
-{
- int i;
- const float *pVec1;
- const __m128 *pVec2;
- __m128 vSum, vNorm;
-
- // Note. It means a major slow-down if the routine needs to tolerate
- // unaligned __m128 memory accesses. It's way faster if we can skip
- // unaligned slots and use _mm_load_ps instruction instead of _mm_loadu_ps.
- // This can mean up to ~ 10-fold difference (incl. part of which is
- // due to skipping every second round for stereo sound though).
- //
- // Compile-time define SOUNDTOUCH_ALLOW_NONEXACT_SIMD_OPTIMIZATION is provided
- // for choosing if this little cheating is allowed.
-
-#ifdef SOUNDTOUCH_ALLOW_NONEXACT_SIMD_OPTIMIZATION
- // Little cheating allowed, return valid correlation only for
- // aligned locations, meaning every second round for stereo sound.
-
- #define _MM_LOAD _mm_load_ps
-
- if (((ulongptr)pV1) & 15) return -1e50; // skip unaligned locations
-
-#else
- // No cheating allowed, use unaligned load & take the resulting
- // performance hit.
- #define _MM_LOAD _mm_loadu_ps
-#endif
-
- // ensure overlapLength is divisible by 8
- assert((overlapLength % 8) == 0);
-
- // Calculates the cross-correlation value between 'pV1' and 'pV2' vectors
- // Note: pV2 _must_ be aligned to 16-bit boundary, pV1 need not.
- pVec1 = (const float*)pV1;
- pVec2 = (const __m128*)pV2;
- vSum = vNorm = _mm_setzero_ps();
-
- // Unroll the loop by factor of 4 * 4 operations. Use same routine for
- // stereo & mono, for mono it just means twice the amount of unrolling.
- for (i = 0; i < channels * overlapLength / 16; i ++)
- {
- __m128 vTemp;
- // vSum += pV1[0..3] * pV2[0..3]
- vTemp = _MM_LOAD(pVec1);
- vSum = _mm_add_ps(vSum, _mm_mul_ps(vTemp ,pVec2[0]));
- vNorm = _mm_add_ps(vNorm, _mm_mul_ps(vTemp ,vTemp));
-
- // vSum += pV1[4..7] * pV2[4..7]
- vTemp = _MM_LOAD(pVec1 + 4);
- vSum = _mm_add_ps(vSum, _mm_mul_ps(vTemp, pVec2[1]));
- vNorm = _mm_add_ps(vNorm, _mm_mul_ps(vTemp ,vTemp));
-
- // vSum += pV1[8..11] * pV2[8..11]
- vTemp = _MM_LOAD(pVec1 + 8);
- vSum = _mm_add_ps(vSum, _mm_mul_ps(vTemp, pVec2[2]));
- vNorm = _mm_add_ps(vNorm, _mm_mul_ps(vTemp ,vTemp));
-
- // vSum += pV1[12..15] * pV2[12..15]
- vTemp = _MM_LOAD(pVec1 + 12);
- vSum = _mm_add_ps(vSum, _mm_mul_ps(vTemp, pVec2[3]));
- vNorm = _mm_add_ps(vNorm, _mm_mul_ps(vTemp ,vTemp));
-
- pVec1 += 16;
- pVec2 += 4;
- }
-
- // return value = vSum[0] + vSum[1] + vSum[2] + vSum[3]
- float *pvNorm = (float*)&vNorm;
- float norm = (pvNorm[0] + pvNorm[1] + pvNorm[2] + pvNorm[3]);
- anorm = norm;
-
- float *pvSum = (float*)&vSum;
- return (double)(pvSum[0] + pvSum[1] + pvSum[2] + pvSum[3]) / sqrt(norm < 1e-9 ? 1.0 : norm);
-
- /* This is approximately corresponding routine in C-language yet without normalization:
- double corr, norm;
- uint i;
-
- // Calculates the cross-correlation value between 'pV1' and 'pV2' vectors
- corr = norm = 0.0;
- for (i = 0; i < channels * overlapLength / 16; i ++)
- {
- corr += pV1[0] * pV2[0] +
- pV1[1] * pV2[1] +
- pV1[2] * pV2[2] +
- pV1[3] * pV2[3] +
- pV1[4] * pV2[4] +
- pV1[5] * pV2[5] +
- pV1[6] * pV2[6] +
- pV1[7] * pV2[7] +
- pV1[8] * pV2[8] +
- pV1[9] * pV2[9] +
- pV1[10] * pV2[10] +
- pV1[11] * pV2[11] +
- pV1[12] * pV2[12] +
- pV1[13] * pV2[13] +
- pV1[14] * pV2[14] +
- pV1[15] * pV2[15];
-
- for (j = 0; j < 15; j ++) norm += pV1[j] * pV1[j];
-
- pV1 += 16;
- pV2 += 16;
- }
- return corr / sqrt(norm);
- */
-}
-
-
-
-double TDStretchSSE::calcCrossCorrAccumulate(const float *pV1, const float *pV2, double &norm) const
-{
- // call usual calcCrossCorr function because SSE does not show big benefit of
- // accumulating "norm" value, and also the "norm" rolling algorithm would get
- // complicated due to SSE-specific alignment-vs-nonexact correlation rules.
- return calcCrossCorr(pV1, pV2, norm);
-}
-
-
-//////////////////////////////////////////////////////////////////////////////
-//
-// implementation of SSE optimized functions of class 'FIRFilter'
-//
-//////////////////////////////////////////////////////////////////////////////
-
-#include "FIRFilter.h"
-
-FIRFilterSSE::FIRFilterSSE() : FIRFilter()
-{
- filterCoeffsAlign = NULL;
- filterCoeffsUnalign = NULL;
-}
-
-
-FIRFilterSSE::~FIRFilterSSE()
-{
- delete[] filterCoeffsUnalign;
- filterCoeffsAlign = NULL;
- filterCoeffsUnalign = NULL;
-}
-
-
-// (overloaded) Calculates filter coefficients for SSE routine
-void FIRFilterSSE::setCoefficients(const float *coeffs, uint newLength, uint uResultDivFactor)
-{
- uint i;
- float fDivider;
-
- FIRFilter::setCoefficients(coeffs, newLength, uResultDivFactor);
-
- // Scale the filter coefficients so that it won't be necessary to scale the filtering result
- // also rearrange coefficients suitably for SSE
- // Ensure that filter coeffs array is aligned to 16-byte boundary
- delete[] filterCoeffsUnalign;
- filterCoeffsUnalign = new float[2 * newLength + 4];
- filterCoeffsAlign = (float *)SOUNDTOUCH_ALIGN_POINTER_16(filterCoeffsUnalign);
-
- fDivider = (float)resultDivider;
-
- // rearrange the filter coefficients for mmx routines
- for (i = 0; i < newLength; i ++)
- {
- filterCoeffsAlign[2 * i + 0] =
- filterCoeffsAlign[2 * i + 1] = coeffs[i + 0] / fDivider;
- }
-}
-
-
-
-// SSE-optimized version of the filter routine for stereo sound
-uint FIRFilterSSE::evaluateFilterStereo(float *dest, const float *source, uint numSamples) const
-{
- int count = (int)((numSamples - length) & (uint)-2);
- int j;
-
- assert(count % 2 == 0);
-
- if (count < 2) return 0;
-
- assert(source != NULL);
- assert(dest != NULL);
- assert((length % 8) == 0);
- assert(filterCoeffsAlign != NULL);
- assert(((ulongptr)filterCoeffsAlign) % 16 == 0);
-
- // filter is evaluated for two stereo samples with each iteration, thus use of 'j += 2'
- #pragma omp parallel for
- for (j = 0; j < count; j += 2)
- {
- const float *pSrc;
- float *pDest;
- const __m128 *pFil;
- __m128 sum1, sum2;
- uint i;
-
- pSrc = (const float*)source + j * 2; // source audio data
- pDest = dest + j * 2; // destination audio data
- pFil = (const __m128*)filterCoeffsAlign; // filter coefficients. NOTE: Assumes coefficients
- // are aligned to 16-byte boundary
- sum1 = sum2 = _mm_setzero_ps();
-
- for (i = 0; i < length / 8; i ++)
- {
- // Unroll loop for efficiency & calculate filter for 2*2 stereo samples
- // at each pass
-
- // sum1 is accu for 2*2 filtered stereo sound data at the primary sound data offset
- // sum2 is accu for 2*2 filtered stereo sound data for the next sound sample offset.
-
- sum1 = _mm_add_ps(sum1, _mm_mul_ps(_mm_loadu_ps(pSrc) , pFil[0]));
- sum2 = _mm_add_ps(sum2, _mm_mul_ps(_mm_loadu_ps(pSrc + 2), pFil[0]));
-
- sum1 = _mm_add_ps(sum1, _mm_mul_ps(_mm_loadu_ps(pSrc + 4), pFil[1]));
- sum2 = _mm_add_ps(sum2, _mm_mul_ps(_mm_loadu_ps(pSrc + 6), pFil[1]));
-
- sum1 = _mm_add_ps(sum1, _mm_mul_ps(_mm_loadu_ps(pSrc + 8) , pFil[2]));
- sum2 = _mm_add_ps(sum2, _mm_mul_ps(_mm_loadu_ps(pSrc + 10), pFil[2]));
-
- sum1 = _mm_add_ps(sum1, _mm_mul_ps(_mm_loadu_ps(pSrc + 12), pFil[3]));
- sum2 = _mm_add_ps(sum2, _mm_mul_ps(_mm_loadu_ps(pSrc + 14), pFil[3]));
-
- pSrc += 16;
- pFil += 4;
- }
-
- // Now sum1 and sum2 both have a filtered 2-channel sample each, but we still need
- // to sum the two hi- and lo-floats of these registers together.
-
- // post-shuffle & add the filtered values and store to dest.
- _mm_storeu_ps(pDest, _mm_add_ps(
- _mm_shuffle_ps(sum1, sum2, _MM_SHUFFLE(1,0,3,2)), // s2_1 s2_0 s1_3 s1_2
- _mm_shuffle_ps(sum1, sum2, _MM_SHUFFLE(3,2,1,0)) // s2_3 s2_2 s1_1 s1_0
- ));
- }
-
- // Ideas for further improvement:
- // 1. If it could be guaranteed that 'source' were always aligned to 16-byte
- // boundary, a faster aligned '_mm_load_ps' instruction could be used.
- // 2. If it could be guaranteed that 'dest' were always aligned to 16-byte
- // boundary, a faster '_mm_store_ps' instruction could be used.
-
- return (uint)count;
-
- /* original routine in C-language. please notice the C-version has differently
- organized coefficients though.
- double suml1, suml2;
- double sumr1, sumr2;
- uint i, j;
-
- for (j = 0; j < count; j += 2)
- {
- const float *ptr;
- const float *pFil;
-
- suml1 = sumr1 = 0.0;
- suml2 = sumr2 = 0.0;
- ptr = src;
- pFil = filterCoeffs;
- for (i = 0; i < lengthLocal; i ++)
- {
- // unroll loop for efficiency.
-
- suml1 += ptr[0] * pFil[0] +
- ptr[2] * pFil[2] +
- ptr[4] * pFil[4] +
- ptr[6] * pFil[6];
-
- sumr1 += ptr[1] * pFil[1] +
- ptr[3] * pFil[3] +
- ptr[5] * pFil[5] +
- ptr[7] * pFil[7];
-
- suml2 += ptr[8] * pFil[0] +
- ptr[10] * pFil[2] +
- ptr[12] * pFil[4] +
- ptr[14] * pFil[6];
-
- sumr2 += ptr[9] * pFil[1] +
- ptr[11] * pFil[3] +
- ptr[13] * pFil[5] +
- ptr[15] * pFil[7];
-
- ptr += 16;
- pFil += 8;
- }
- dest[0] = (float)suml1;
- dest[1] = (float)sumr1;
- dest[2] = (float)suml2;
- dest[3] = (float)sumr2;
-
- src += 4;
- dest += 4;
- }
- */
-}
-
-#endif // SOUNDTOUCH_ALLOW_SSE
|