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.
22 #include <ardour/types.h>
23 #include <ardour/utils.h>
24 #include <ardour/mix.h>
27 #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 compute_peak (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 apply_gain_to_buffer (ARDOUR::Sample *buf, nframes_t nframes, float gain)
97 for (nframes_t i=0; i<nframes; i++)
102 mix_buffers_with_gain (ARDOUR::Sample *dst, ARDOUR::Sample *src, nframes_t nframes, float gain)
104 for (nframes_t i = 0; i < nframes; i++) {
105 dst[i] += src[i] * gain;
110 mix_buffers_no_gain (ARDOUR::Sample *dst, ARDOUR::Sample *src, nframes_t nframes)
112 for (nframes_t i=0; i < nframes; i++) {
117 #if defined (__APPLE__) && defined (BUILD_VECLIB_OPTIMIZATIONS)
118 #include <Accelerate/Accelerate.h>
121 veclib_compute_peak (ARDOUR::Sample *buf, nframes_t nsamples, float current)
124 vDSP_maxmgv(buf, 1, &tmpmax, nsamples);
125 return f_max(current, tmpmax);
129 veclib_apply_gain_to_buffer (ARDOUR::Sample *buf, nframes_t nframes, float gain)
131 vDSP_vsmul(buf, 1, &gain, buf, 1, nframes);
135 veclib_mix_buffers_with_gain (ARDOUR::Sample *dst, ARDOUR::Sample *src, nframes_t nframes, float gain)
137 vDSP_vsma(src, 1, &gain, dst, 1, dst, 1, nframes);
141 veclib_mix_buffers_no_gain (ARDOUR::Sample *dst, ARDOUR::Sample *src, nframes_t nframes)
143 // It seems that a vector mult only operation does not exist...
145 vDSP_vsma(src, 1, &gain, dst, 1, dst, 1, nframes);