13
0
livetrax/libs/soundtouch/mmx_gcc.cpp
Taybin Rutkin fa7c141813 Updated to soundtouch-1.3 (plus modifications)
git-svn-id: svn://localhost/trunk/ardour2@13 d708f5d6-7413-0410-9779-e7cbd77b26cf
2005-05-18 16:08:37 +00:00

535 lines
18 KiB
C++

////////////////////////////////////////////////////////////////////////////////
///
/// gcc version of the MMX optimized routines. All MMX 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.
///
/// This file is to be compiled on any platform with the GNU C compiler.
/// Compiler. Please see 'mmx_win.cpp' for the x86 Windows version of this
/// file.
///
/// Author : Copyright (c) Olli Parviainen
/// Author e-mail : oparviai @ iki.fi
/// SoundTouch WWW: http://www.iki.fi/oparviai/soundtouch
///
////////////////////////////////////////////////////////////////////////////////
//
// Last changed : $Date$
// File revision : $Revision$
//
// $Id$
//
////////////////////////////////////////////////////////////////////////////////
//
// 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 <stdexcept>
#include <string>
#include "cpu_detect.h"
#ifndef __GNUC__
#error "wrong platform - this source code file is for the GNU C compiler."
#endif
using namespace std;
using namespace soundtouch;
#ifdef ALLOW_MMX
// MMX routines available only with integer sample type
//////////////////////////////////////////////////////////////////////////////
//
// implementation of MMX optimized functions of class 'TDStretch'
//
// NOTE: ebx in gcc 3.x is not preserved if -fPIC and -DPIC
// gcc-3.4 correctly flags this error and wont let you continue.
// gcc-2.95 preserves esi correctly
//
//////////////////////////////////////////////////////////////////////////////
#include "TDStretch.h"
#include <limits.h>
// these are declared in 'TDStretch.cpp'
extern int scanOffsets[4][24];
// Calculates cross correlation of two buffers
long TDStretchMMX::calcCrossCorrStereo(const short *pV1, const short *pV2) const
{
#ifdef __i386__
int corr;
uint local_overlapLength = overlapLength;
uint local_overlapDividerBits = overlapDividerBits;
asm volatile(
// Calculate cross-correlation between the tempOffset and tmpbid_buffer.
// Process 4 parallel batches of 2 * stereo samples each during one
// round to improve CPU-level parallellization.
// load address of sloped pV2 buffer to eax
// load address of mixing point of the sample data buffer to edi
// load counter to ecx = overlapLength / 8 - 1
// empty the mm0
// prepare to the first round by loading
// load mm1 = eax[0]
// load mm2 = eax[1];
"\n\tmovl %1, %%eax"
"\n\tmovl %2, %%edi"
"\n\tmovq (%%eax), %%mm1"
"\n\tmovl %3, %%ecx"
"\n\tmovq 8(%%eax), %%mm2"
"\n\tshr $3, %%ecx"
"\n\tpxor %%mm0, %%mm0"
"\n\tsub $1, %%ecx"
"\n\tmovd %4, %%mm5"
"\n1:"
// multiply-add mm1 = mm1 * edi[0]
// multiply-add mm2 = mm2 * edi[1]
//
// add mm2 += mm1
// mm2 >>= mm5 (=overlapDividerBits)
// add mm0 += mm2
//
// load mm3 = eax[2]
// multiply-add mm3 = mm3 * edi[2]
//
// load mm4 = eax[3]
// multiply-add mm4 = mm4 * edi[3]
//
// add mm3 += mm4
// mm3 >>= mm5 (=overlapDividerBits)
// add mm0 += mm3
//
// add eax += 4
// add edi += 4
// load mm1 = eax[0] (~eax[4])
// load mm2 = eax[1] (~eax[5])
//
// loop
"\n\tpmaddwd (%%edi), %%mm1" // qword ptr [edi]
"\n\tmovq 16(%%eax), %%mm3" // qword ptr [eax+16]
"\n\tpmaddwd 8(%%edi), %%mm2" // qword ptr [edi+8]
"\n\tmovq 24(%%eax), %%mm4" // qword ptr [eax+24]
"\n\tpmaddwd 16(%%edi), %%mm3" // qword ptr [edi+16]
"\n\tpaddd %%mm1, %%mm2"
"\n\tpmaddwd 24(%%edi), %%mm4" // qword ptr [edi+24]
"\n\tmovq 32(%%eax), %%mm1" // qword ptr [eax+32]
"\n\tpsrad %%mm5, %%mm2"
"\n\tadd $32, %%eax"
"\n\tpaddd %%mm4, %%mm3"
"\n\tpaddd %%mm2, %%mm0"
"\n\tmovq 8(%%eax), %%mm2" // qword ptr [eax+8]
"\n\tpsrad %%mm5, %%mm3"
"\n\tadd $32, %%edi"
"\n\tpaddd %%mm3, %%mm0"
"\n\tdec %%ecx"
"\n\tjnz 1b"
// Finalize the last partial loop:
"\n\tmovq 16(%%eax), %%mm3" // qword ptr [eax+16]
"\n\tpmaddwd (%%edi), %%mm1" // qword ptr [edi]
"\n\tmovq 24(%%eax), %%mm4" // qword ptr [eax+24]
"\n\tpmaddwd 8(%%edi), %%mm2" // qword ptr [edi+8]
"\n\tpmaddwd 16(%%edi), %%mm3" // qword ptr [edi+16]
"\n\tpaddd %%mm1, %%mm2"
"\n\tpmaddwd 24(%%edi), %%mm4" // qword ptr [edi+24]
"\n\tpsrad %%mm5, %%mm2"
"\n\tpaddd %%mm4, %%mm3"
"\n\tpaddd %%mm2, %%mm0"
"\n\tpsrad %%mm5, %%mm3"
"\n\tpaddd %%mm3, %%mm0"
// copy hi-dword of mm0 to lo-dword of mm1, then sum mmo+mm1
// and finally store the result into the variable "corr"
"\n\tmovq %%mm0, %%mm1"
"\n\tpsrlq $32, %%mm1"
"\n\tpaddd %%mm1, %%mm0"
"\n\tmovd %%mm0, %0"
: "=rm" (corr)
: "rim" (pV1), "rim" (pV2), "rim" (local_overlapLength),
"rim" (local_overlapDividerBits)
: "%ecx", "%eax", "%edi"
);
return corr;
// Note: Warning about the missing EMMS instruction is harmless
// as it'll be called elsewhere.
#else
throw runtime_error("MMX not supported");
#endif
}
void TDStretchMMX::clearCrossCorrState()
{
#ifdef __i386__
asm volatile("EMMS");
#endif
}
// MMX-optimized version of the function overlapStereo
void TDStretchMMX::overlapStereo(short *output, const short *input) const
{
#ifdef __i386__
short *local_midBuffer = pMidBuffer;
uint local_overlapLength = overlapLength;
uint local_overlapDividerBits = overlapDividerBits;
asm volatile(
"\n\t"
// load sliding mixing value counter to mm6 and mm7
// load counter value to ecx = overlapLength / 4
// load divider-shifter value to esi
// load mixing value adder to mm5
// load address of midBuffer to eax
// load address of inputBuffer added with ovlOffset to edi
// load address of end of the outputBuffer to edx
//
// We need to preserve esi, since gcc uses it for the
// stack frame.
"movl %0, %%eax\n\t" // ecx = 0x0000 OVL_
"movl $0x0002fffe, %%edi\n\t" // ecx = 0x0002 fffe
"movl %1, %%esi\n\t"
"movd %%eax, %%mm6\n\t" // mm6 = 0x0000 0000 0000 OVL_
"movl %%eax, %%ecx\n\t"
"sub $1, %%eax\n\t"
"punpckldq %%mm6, %%mm6\n\t" // mm6 = 0x0000 OVL_ 0000 OVL_
"or $0x00010000, %%eax\n\t" // eax = 0x0001 overlapLength-1
"movd %%edi, %%mm5\n\t" // mm5 = 0x0000 0000 0002 fffe
"movd %%eax, %%mm7\n\t" // mm7 = 0x0000 0000 0001 01ff
"movl %3, %%edi\n\t"
"movl %4, %%eax\n\t" // dword ptr local_midBuffer
"punpckldq %%mm5, %%mm5\n\t" // mm5 = 0x0002 fffe 0002 fffe
"shr $2, %%ecx\n\t" // ecx = overlapLength / 2
"punpckldq %%mm7, %%mm7\n\t" // mm7 = 0x0001 01ff 0001 01ff
"movl %2, %%edx\n"
"2:\n\t"
// Process two parallel batches of 2+2 stereo samples during each round
// to improve CPU-level parallellization.
//
// Load [eax] into mm0 and mm1
// Load [edi] into mm3
// unpack words of mm0, mm1 and mm3 into mm0 and mm1
// multiply-add mm0*mm6 and mm1*mm7, store results into mm0 and mm1
// divide mm0 and mm1 by 512 (=right-shift by overlapDividerBits)
// pack the result into mm0 and store into [edx]
//
// Load [eax+8] into mm2 and mm3
// Load [edi+8] into mm4
// unpack words of mm2, mm3 and mm4 into mm2 and mm3
// multiply-add mm2*mm6 and mm3*mm7, store results into mm2 and mm3
// divide mm2 and mm3 by 512 (=right-shift by overlapDividerBits)
// pack the result into mm2 and store into [edx+8]
"movq (%%eax), %%mm0\n\t" // mm0 = m1l m1r m0l m0r
"add $16, %%edx\n\t"
"movq (%%edi), %%mm3\n\t" // mm3 = i1l i1r i0l i0r
"movq %%mm0, %%mm1\n\t" // mm1 = m1l m1r m0l m0r
"movq 8(%%eax), %%mm2\n\t" // mm2 = m3l m3r m2l m2r
"punpcklwd %%mm3, %%mm0\n\t" // mm0 = i0l m0l i0r m0r
"movq 8(%%edi), %%mm4\n\t" // mm4 = i3l i3r i2l i2r
"punpckhwd %%mm3, %%mm1\n\t" // mm1 = i1l m1l i1r m1r
"movq %%mm2, %%mm3\n\t" // mm3 = m3l m3r m2l m2r
"punpcklwd %%mm4, %%mm2\n\t" // mm2 = i2l m2l i2r m2r
"pmaddwd %%mm6, %%mm0\n\t" // mm0 = i0l*m63+m0l*m62 i0r*m61+m0r*m60
"punpckhwd %%mm4, %%mm3\n\t" // mm3 = i3l m3l i3r m3r
"movd %%esi, %%mm4\n\t" // mm4 = overlapDividerBits
"pmaddwd %%mm7, %%mm1\n\t" // mm1 = i1l*m73+m1l*m72 i1r*m71+m1r*m70
"paddw %%mm5, %%mm6\n\t"
"paddw %%mm5, %%mm7\n\t"
"psrad %%mm4, %%mm0\n\t" // mmo >>= overlapDividerBits
"pmaddwd %%mm6, %%mm2\n\t" // mm2 = i2l*m63+m2l*m62 i2r*m61+m2r*m60
"psrad %%mm4, %%mm1\n\t" // mm1 >>= overlapDividerBits
"pmaddwd %%mm7, %%mm3\n\t" // mm3 = i3l*m73+m3l*m72 i3r*m71+m3r*m70
"psrad %%mm4, %%mm2\n\t" // mm2 >>= overlapDividerBits
"packssdw %%mm1, %%mm0\n\t" // mm0 = mm1h mm1l mm0h mm0l
"psrad %%mm4, %%mm3\n\t" // mm3 >>= overlapDividerBits
"add $16, %%eax\n\t"
"paddw %%mm5, %%mm6\n\t"
"packssdw %%mm3, %%mm2\n\t" // mm2 = mm2h mm2l mm3h mm3l
"paddw %%mm5, %%mm7\n\t"
"movq %%mm0, -16(%%edx)\n\t"
"add $16, %%edi\n\t"
"movq %%mm2, -8(%%edx)\n\t"
"dec %%ecx\n\t"
"jnz 2b\n\t"
"emms\n\t"
:
: "rim" (local_overlapLength),
"rim" (local_overlapDividerBits),
"rim" (output),
"rim" (input),
"rim" (local_midBuffer)
/* input */
: "%edi", "%ecx", "%edx", "%eax", "%esi" /* regs */
);
#else
throw runtime_error("MMX not supported");
#endif
}
//////////////////////////////////////////////////////////////////////////////
//
// implementation of MMX optimized functions of class 'FIRFilter'
//
//////////////////////////////////////////////////////////////////////////////
#include "FIRFilter.h"
FIRFilterMMX::FIRFilterMMX() : FIRFilter()
{
filterCoeffsUnalign = NULL;
}
FIRFilterMMX::~FIRFilterMMX()
{
delete[] filterCoeffsUnalign;
}
#if 1
// (overloaded) Calculates filter coefficients for MMX routine
void FIRFilterMMX::setCoefficients(const short *coeffs, uint newLength, uint uResultDivFactor)
{
#ifdef __i386__
uint i;
FIRFilter::setCoefficients(coeffs, newLength, uResultDivFactor);
// Ensure that filter coeffs array is aligned to 16-byte boundary
delete[] filterCoeffsUnalign;
filterCoeffsUnalign = new short[2 * newLength + 8];
filterCoeffsAlign = (short *)(((uint)filterCoeffsUnalign + 15) & -16);
// rearrange the filter coefficients for mmx routines
for (i = 0;i < length; i += 4)
{
filterCoeffsAlign[2 * i + 0] = coeffs[i + 0];
filterCoeffsAlign[2 * i + 1] = coeffs[i + 2];
filterCoeffsAlign[2 * i + 2] = coeffs[i + 0];
filterCoeffsAlign[2 * i + 3] = coeffs[i + 2];
filterCoeffsAlign[2 * i + 4] = coeffs[i + 1];
filterCoeffsAlign[2 * i + 5] = coeffs[i + 3];
filterCoeffsAlign[2 * i + 6] = coeffs[i + 1];
filterCoeffsAlign[2 * i + 7] = coeffs[i + 3];
}
#else
throw runtime_error("MMX not supported");
#endif
}
// mmx-optimized version of the filter routine for stereo sound
uint FIRFilterMMX::evaluateFilterStereo(short *dest, const short *src, const uint numSamples) const
{
#ifdef __i386__
// Create stack copies of the needed member variables for asm routines :
uint local_length = length;
uint local_lengthDiv8 = lengthDiv8;
uint local_resultDivider = resultDivFactor;
short *local_filterCoeffs = (short*)filterCoeffsAlign;
short *local_src = (short *)src;
asm volatile(
"\n\t"
// Load (num_samples-aa_filter_length)/2 to edi as a i
// Load a pointer to samples to esi
// Load a pointer to destination to edx
"movl %0, %%edi\n\t"
"subl %2, %%edi\n\t"
"movl %3, %%edx\n\t"
"sar $1, %%edi\n"
// Load filter length/8 to ecx
// Load pointer to samples from esi to ebx
// Load counter from edi to ecx
// Load [ebx] to mm3
// Load pointer to filter coefficients to eax
"3:\n\t"
"movl %1, %%esi\n\t"
"pxor %%mm0, %%mm0\n\t"
"movl %4, %%ecx\n\t"
"pxor %%mm7, %%mm7\n\t"
"movq (%%esi), %%mm1\n\t" // mm1 = l1 r1 l0 r0
"movl %5, %%eax\n"
"4:\n\t"
"movq 8(%%esi), %%mm2\n\t" // mm2 = l3 r3 l2 r2
"movq %%mm1, %%mm4\n\t" // mm4 = l1 r1 l0 r0
"movq 16(%%esi), %%mm3\n\t" // mm3 = l5 r5 l4 r4
"punpckhwd %%mm2, %%mm1\n\t" // mm1 = l3 l1 r3 r1
"movq %%mm2, %%mm6\n\t" // mm6 = l3 r3 l2 r2
"punpcklwd %%mm2, %%mm4\n\t" // mm4 = l2 l0 r2 r0
"movq (%%eax), %%mm2\n\t" // mm2 = f2 f0 f2 f0
"movq %%mm1, %%mm5\n\t" // mm5 = l3 l1 r3 r1
"punpcklwd %%mm3, %%mm6\n\t" // mm6 = l4 l2 r4 r2
"pmaddwd %%mm2, %%mm4\n\t" // mm4 = l2*f2+l0*f0 r2*f2+r0*f0
"pmaddwd %%mm2, %%mm5\n\t" // mm5 = l3*f2+l1*f0 r3*f2+l1*f0
"movq 8(%%eax), %%mm2\n\t" // mm2 = f3 f1 f3 f1
"paddd %%mm4, %%mm0\n\t" // mm0 += s02*f02
"movq %%mm3, %%mm4\n\t" // mm4 = l1 r1 l0 r0
"pmaddwd %%mm2, %%mm1\n\t" // mm1 = l3*f3+l1*f1 r3*f3+l1*f1
"paddd %%mm5, %%mm7\n\t" // mm7 += s13*f02
"pmaddwd %%mm2, %%mm6\n\t" // mm6 = l4*f3+l2*f1 r4*f3+f4*f1
"movq 24(%%esi), %%mm2\n\t" // mm2 = l3 r3 l2 r2
"paddd %%mm1, %%mm0\n\t" // mm0 += s31*f31
"movq 32(%%esi), %%mm1\n\t" // mm1 = l5 r5 l4 r4
"paddd %%mm6, %%mm7\n\t" // mm7 += s42*f31
"punpckhwd %%mm2, %%mm3\n\t" // mm3 = l3 l1 r3 r1
"movq %%mm2, %%mm6\n\t" // mm6 = l3 r3 l2 r2
"punpcklwd %%mm2, %%mm4\n\t" // mm4 = l2 l0 r2 r0
"movq 16(%%eax), %%mm2\n\t" // mm2 = f2 f0 f2 f0
"movq %%mm3, %%mm5\n\t" // mm5 = l3 l1 r3 r1
"punpcklwd %%mm1, %%mm6\n\t" // mm6 = l4 l2 r4 r2
"add $32, %%eax\n\t"
"pmaddwd %%mm2, %%mm4\n\t" // mm4 = l2*f2+l0*f0 r2*f2+r0*f0
"add $32, %%esi\n\t"
"pmaddwd %%mm2, %%mm5\n\t" // mm5 = l3*f2+l1*f0 r3*f2+l1*f0
"movq -8(%%eax), %%mm2\n\t" // mm2 = f3 f1 f3 f1
"paddd %%mm4, %%mm0\n\t" // mm0 += s02*f02
"pmaddwd %%mm2, %%mm3\n\t" // mm3 = l3*f3+l1*f1 r3*f3+l1*f1
"paddd %%mm5, %%mm7\n\t" // mm7 += s13*f02
"pmaddwd %%mm2, %%mm6\n\t" // mm6 = l4*f3+l2*f1 r4*f3+f4*f1
"paddd %%mm3, %%mm0\n\t" // mm0 += s31*f31
"paddd %%mm6, %%mm7\n\t" // mm7 += s42*f31
"dec %%ecx\n\t"
"jnz 4b\n\t"
// Divide mm0 and mm7 by 8192 (= right-shift by 13),
// pack and store to [edx]
"movd %6, %%mm4\n\t"
"psrad %%mm4, %%mm0\n\t" // divide the result
"add $8, %%edx\n\t"
"psrad %%mm4, %%mm7\n\t" // divide the result
"add $8, %1\n\t"
"packssdw %%mm7, %%mm0\n\t"
"movq %%mm0, -8(%%edx)\n\t"
"dec %%edi\n\t"
"jnz 3b\n\t"
"emms\n\t"
:
: "rim" (numSamples),
"rim" (local_src),
"rim" (local_length),
"rim" (dest),
"rim" (local_lengthDiv8),
"rim" (local_filterCoeffs),
"rim" (local_resultDivider) /* input */
: "%eax", "%ecx", "%edx", "%edi", "%esi" /* regs */
);
return (numSamples & 0xfffffffe) - local_length;
#else
throw runtime_error("MMX not supported");
return 0;
#endif
}
#endif
#endif // ALLOW_MMX