From 9c0d7d72d70082a54f823cd44c0ccda5da64bb6f Mon Sep 17 00:00:00 2001 From: Doug McLain Date: Mon, 2 Jun 2008 05:02:28 +0000 Subject: remove empty sigc++2 directory git-svn-id: svn://localhost/ardour2/branches/3.0@3432 d708f5d6-7413-0410-9779-e7cbd77b26cf --- libs/ardour/sse_functions_xmm.cc | 116 --------------------------------------- 1 file changed, 116 deletions(-) delete mode 100644 libs/ardour/sse_functions_xmm.cc (limited to 'libs/ardour/sse_functions_xmm.cc') diff --git a/libs/ardour/sse_functions_xmm.cc b/libs/ardour/sse_functions_xmm.cc deleted file mode 100644 index 9b37c37912..0000000000 --- a/libs/ardour/sse_functions_xmm.cc +++ /dev/null @@ -1,116 +0,0 @@ -/* - Copyright (C) 2007 Paul sDavis - Written by Sampo Savolainen - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -*/ - -#include -#include - -void -x86_sse_find_peaks(const ARDOUR::Sample* buf, nframes_t nframes, float *min, float *max) -{ - __m128 current_max, current_min, work; - - // Load max and min values into all four slots of the XMM registers - current_min = _mm_set1_ps(*min); - current_max = _mm_set1_ps(*max); - - // Work input until "buf" reaches 16 byte alignment - while ( ((unsigned long)buf) % 16 != 0 && nframes > 0) { - - // Load the next float into the work buffer - work = _mm_set1_ps(*buf); - - current_min = _mm_min_ps(current_min, work); - current_max = _mm_max_ps(current_max, work); - - buf++; - nframes--; - } - - // use 64 byte prefetch for quadruple quads - while (nframes >= 16) { - __builtin_prefetch(buf+64,0,0); - - work = _mm_load_ps(buf); - current_min = _mm_min_ps(current_min, work); - current_max = _mm_max_ps(current_max, work); - buf+=4; - work = _mm_load_ps(buf); - current_min = _mm_min_ps(current_min, work); - current_max = _mm_max_ps(current_max, work); - buf+=4; - work = _mm_load_ps(buf); - current_min = _mm_min_ps(current_min, work); - current_max = _mm_max_ps(current_max, work); - buf+=4; - work = _mm_load_ps(buf); - current_min = _mm_min_ps(current_min, work); - current_max = _mm_max_ps(current_max, work); - buf+=4; - nframes-=16; - } - - // work through aligned buffers - while (nframes >= 4) { - - work = _mm_load_ps(buf); - - current_min = _mm_min_ps(current_min, work); - current_max = _mm_max_ps(current_max, work); - - buf+=4; - nframes-=4; - } - - // work through the rest < 4 samples - while ( nframes > 0) { - - // Load the next float into the work buffer - work = _mm_set1_ps(*buf); - - current_min = _mm_min_ps(current_min, work); - current_max = _mm_max_ps(current_max, work); - - buf++; - nframes--; - } - - // Find min & max value in current_max through shuffle tricks - - work = current_min; - work = _mm_shuffle_ps(work, work, _MM_SHUFFLE(2, 3, 0, 1)); - work = _mm_min_ps (work, current_min); - current_min = work; - work = _mm_shuffle_ps(work, work, _MM_SHUFFLE(1, 0, 3, 2)); - work = _mm_min_ps (work, current_min); - - _mm_store_ss(min, work); - - work = current_max; - work = _mm_shuffle_ps(work, work, _MM_SHUFFLE(2, 3, 0, 1)); - work = _mm_max_ps (work, current_max); - current_max = work; - work = _mm_shuffle_ps(work, work, _MM_SHUFFLE(1, 0, 3, 2)); - work = _mm_max_ps (work, current_max); - - _mm_store_ss(max, work); -} - - - -- cgit v1.2.3