From 47a10173ea203de2036dd00791fe5c24fb673135 Mon Sep 17 00:00:00 2001
From: Robert Jonsson <spamatica@gmail.com>
Date: Fri, 15 Apr 2011 18:52:45 +0000
Subject: removing unnecessary duplication
---
attic/muse_qt4_evolution/al/dspXMM.cpp | 115 ---------------------------------
1 file changed, 115 deletions(-)
delete mode 100644 attic/muse_qt4_evolution/al/dspXMM.cpp
(limited to 'attic/muse_qt4_evolution/al/dspXMM.cpp')
diff --git a/attic/muse_qt4_evolution/al/dspXMM.cpp b/attic/muse_qt4_evolution/al/dspXMM.cpp
deleted file mode 100644
index 1943fa7d..00000000
--- a/attic/muse_qt4_evolution/al/dspXMM.cpp
+++ /dev/null
@@ -1,115 +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>
-
-void
-x86_sse_find_peaks(float *buf, unsigned 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);
-}
-
-
-
--
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