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 #if defined (ARCH_X86) && defined (BUILD_SSE_OPTIMIZATIONS)
31 debug_compute_peak (ARDOUR::Sample *buf, nframes_t nsamples, float current)
33 if ( ((intptr_t)buf % 16) != 0) {
34 cerr << "compute_peak(): buffer unaligned!" << endl;
37 return x86_sse_compute_peak(buf, nsamples, current);
41 debug_apply_gain_to_buffer (ARDOUR::Sample *buf, nframes_t nframes, float gain)
43 if ( ((intptr_t)buf % 16) != 0) {
44 cerr << "apply_gain_to_buffer(): buffer unaligned!" << endl;
47 x86_sse_apply_gain_to_buffer(buf, nframes, gain);
51 debug_mix_buffers_with_gain (ARDOUR::Sample *dst, ARDOUR::Sample *src, nframes_t nframes, float gain)
53 if ( ((intptr_t)dst & 15) != 0) {
54 cerr << "mix_buffers_with_gain(): dst unaligned!" << endl;
57 if ( ((intptr_t)dst & 15) != ((intptr_t)src & 15) ) {
58 cerr << "mix_buffers_with_gain(): dst & src don't have the same alignment!" << endl;
59 mix_buffers_with_gain(dst, src, nframes, gain);
61 x86_sse_mix_buffers_with_gain(dst, src, nframes, gain);
66 debug_mix_buffers_no_gain (ARDOUR::Sample *dst, ARDOUR::Sample *src, nframes_t nframes)
68 if ( ((intptr_t)dst & 15) != 0) {
69 cerr << "mix_buffers_no_gain(): dst unaligned!" << endl;
72 if ( ((intptr_t)dst & 15) != ((intptr_t)src & 15) ) {
73 cerr << "mix_buffers_no_gain(): dst & src don't have the same alignment!" << endl;
74 mix_buffers_no_gain(dst, src, nframes);
76 x86_sse_mix_buffers_no_gain(dst, src, nframes);
84 compute_peak (ARDOUR::Sample *buf, nframes_t nsamples, float current)
86 for (nframes_t i = 0; i < nsamples; ++i) {
87 current = f_max (current, fabsf (buf[i]));
94 apply_gain_to_buffer (ARDOUR::Sample *buf, nframes_t nframes, float gain)
96 for (nframes_t i=0; i<nframes; i++)
101 mix_buffers_with_gain (ARDOUR::Sample *dst, ARDOUR::Sample *src, nframes_t nframes, float gain)
103 for (nframes_t i = 0; i < nframes; i++) {
104 dst[i] += src[i] * gain;
109 mix_buffers_no_gain (ARDOUR::Sample *dst, ARDOUR::Sample *src, nframes_t nframes)
111 for (nframes_t i=0; i < nframes; i++) {
116 #if defined (__APPLE__) && defined (BUILD_VECLIB_OPTIMIZATIONS)
117 #include <Accelerate/Accelerate.h>
120 veclib_compute_peak (ARDOUR::Sample *buf, nframes_t nsamples, float current)
123 vDSP_maxmgv(buf, 1, &tmpmax, nsamples);
124 return f_max(current, tmpmax);
128 veclib_apply_gain_to_buffer (ARDOUR::Sample *buf, nframes_t nframes, float gain)
130 vDSP_vsmul(buf, 1, &gain, buf, 1, nframes);
134 veclib_mix_buffers_with_gain (ARDOUR::Sample *dst, ARDOUR::Sample *src, nframes_t nframes, float gain)
136 vDSP_vsma(src, 1, &gain, dst, 1, dst, 1, nframes);
140 veclib_mix_buffers_no_gain (ARDOUR::Sample *dst, ARDOUR::Sample *src, nframes_t nframes)
142 // It seems that a vector mult only operation does not exist...
144 vDSP_vsma(src, 1, &gain, dst, 1, dst, 1, nframes);