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authorDoug McLain <doug@nostar.net>2008-06-02 05:02:28 +0000
committerDoug McLain <doug@nostar.net>2008-06-02 05:02:28 +0000
commit9c0d7d72d70082a54f823cd44c0ccda5da64bb6f (patch)
tree96ec400b83b8c1c06852b1936f684b5fbcd47a79 /libs/ardour/sse_functions_xmm.cc
parent2f3f697bb8e185eb43c2c50b4eefc2bcb937f269 (diff)
remove empty sigc++2 directory
git-svn-id: svn://localhost/ardour2/branches/3.0@3432 d708f5d6-7413-0410-9779-e7cbd77b26cf
Diffstat (limited to 'libs/ardour/sse_functions_xmm.cc')
-rw-r--r--libs/ardour/sse_functions_xmm.cc116
1 files changed, 0 insertions, 116 deletions
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 <xmmintrin.h>
-#include <ardour/types.h>
-
-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);
-}
-
-
-