2 Copyright (C) 2000-2005 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include <ardour/types.h>
22 #include <ardour/utils.h>
23 #include <ardour/mix.h>
26 using namespace ARDOUR;
28 #if defined (ARCH_X86) && defined (BUILD_SSE_OPTIMIZATIONS)
32 debug_compute_peak (ARDOUR::Sample *buf, nframes_t nsamples, float current)
34 if ( ((intptr_t)buf % 16) != 0) {
35 cerr << "compute_peak(): buffer unaligned!" << endl;
38 return x86_sse_compute_peak(buf, nsamples, current);
42 debug_apply_gain_to_buffer (ARDOUR::Sample *buf, nframes_t nframes, float gain)
44 if ( ((intptr_t)buf % 16) != 0) {
45 cerr << "apply_gain_to_buffer(): buffer unaligned!" << endl;
48 x86_sse_apply_gain_to_buffer(buf, nframes, gain);
52 debug_mix_buffers_with_gain (ARDOUR::Sample *dst, ARDOUR::Sample *src, nframes_t nframes, float gain)
54 if ( ((intptr_t)dst & 15) != 0) {
55 cerr << "mix_buffers_with_gain(): dst unaligned!" << endl;
58 if ( ((intptr_t)dst & 15) != ((intptr_t)src & 15) ) {
59 cerr << "mix_buffers_with_gain(): dst & src don't have the same alignment!" << endl;
60 mix_buffers_with_gain(dst, src, nframes, gain);
62 x86_sse_mix_buffers_with_gain(dst, src, nframes, gain);
67 debug_mix_buffers_no_gain (ARDOUR::Sample *dst, ARDOUR::Sample *src, nframes_t nframes)
69 if ( ((intptr_t)dst & 15) != 0) {
70 cerr << "mix_buffers_no_gain(): dst unaligned!" << endl;
73 if ( ((intptr_t)dst & 15) != ((intptr_t)src & 15) ) {
74 cerr << "mix_buffers_no_gain(): dst & src don't have the same alignment!" << endl;
75 mix_buffers_no_gain(dst, src, nframes);
77 x86_sse_mix_buffers_no_gain(dst, src, nframes);
85 default_compute_peak (const ARDOUR::Sample * buf, nframes_t nsamples, float current)
87 for (nframes_t i = 0; i < nsamples; ++i) {
88 current = f_max (current, fabsf (buf[i]));
95 default_find_peaks (const ARDOUR::Sample * buf, nframes_t nframes, float *min, float *max)
103 for (i = 0; i < nframes; i++)
105 a = fmax (buf[i], a);
106 b = fmin (buf[i], b);
114 default_apply_gain_to_buffer (ARDOUR::Sample * buf, nframes_t nframes, float gain)
116 for (nframes_t i=0; i<nframes; i++)
121 default_mix_buffers_with_gain (ARDOUR::Sample * dst, const ARDOUR::Sample * src, nframes_t nframes, float gain)
123 for (nframes_t i = 0; i < nframes; i++) {
124 dst[i] += src[i] * gain;
129 default_mix_buffers_no_gain (ARDOUR::Sample * dst, const ARDOUR::Sample * src, nframes_t nframes)
131 for (nframes_t i=0; i < nframes; i++) {
136 #if defined (__APPLE__) && defined (BUILD_VECLIB_OPTIMIZATIONS)
137 #include <Accelerate/Accelerate.h>
140 veclib_compute_peak (const ARDOUR::Sample * buf, nframes_t nsamples, float current)
143 vDSP_maxmgv(buf, 1, &tmpmax, nsamples);
144 return f_max(current, tmpmax);
148 veclib_find_peaks (const ARDOUR::Sample * buf, nframes_t nframes, float *min, float *max)
150 vDSP_maxv (const_cast<ARDOUR::Sample*>(buf), 1, max, nframes);
151 vDSP_minv (const_cast<ARDOUR::Sample*>(buf), 1, min, nframes);
155 veclib_apply_gain_to_buffer (ARDOUR::Sample * buf, nframes_t nframes, float gain)
157 vDSP_vsmul(buf, 1, &gain, buf, 1, nframes);
161 veclib_mix_buffers_with_gain (ARDOUR::Sample * dst, const ARDOUR::Sample * src, nframes_t nframes, float gain)
163 vDSP_vsma(src, 1, &gain, dst, 1, dst, 1, nframes);
167 veclib_mix_buffers_no_gain (ARDOUR::Sample * dst, const ARDOUR::Sample * src, nframes_t nframes)
169 // It seems that a vector mult only operation does not exist...
171 vDSP_vsma(src, 1, &gain, dst, 1, dst, 1, nframes);