author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 16 Apr 2010 16:46:38 +0300 | |
changeset 18 | 47c74d1534e1 |
permissions | -rw-r--r-- |
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/* |
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* LIBOIL - Library of Optimized Inner Loops |
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* Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org> |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, |
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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//Portions Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. |
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|
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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#include <liboilfunction.h> |
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#include "liboil/simdpack/simdpack.h" |
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#include <math.h> |
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|
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/** |
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* oil_diffsquaresum_f32: |
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* @d_1: |
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* @src1: |
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* @sstr1: |
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* @src2: |
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* @sstr2: |
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* @n: |
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* |
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* Calculates the sum of squared differences between @src1 and @src2 |
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* and places the result in @d_1. |
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*/ |
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OIL_DEFINE_CLASS (diffsquaresum_f32, |
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"float *d_1, float *src1, int sstr1, float *src2, int sstr2, int n"); |
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|
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static void |
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diffsquaresum_f32_ref(float *dest, float *src1, int sstr1, float *src2, |
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int sstr2, int n) |
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{ |
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double sum = 0; |
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double errsum = 0; |
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double tmp; |
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double x; |
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int i; |
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|
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for(i=0;i<n;i++){ |
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x = OIL_GET(src1, i*sstr1, float) - |
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OIL_GET(src2, i*sstr2, float); |
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x = x*x; |
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tmp = sum; |
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sum += x; |
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errsum += (tmp - sum) + x; |
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} |
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*dest = sum + errsum; |
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} |
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OIL_DEFINE_IMPL_REF (diffsquaresum_f32_ref, diffsquaresum_f32); |
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#ifdef __SYMBIAN32__ |
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OilFunctionClass* __oil_function_class_diffsquaresum_f32() { |
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return &_oil_function_class_diffsquaresum_f32; |
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} |
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#endif |
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#ifdef __SYMBIAN32__ |
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OilFunctionImpl* __oil_function_impl_diffsquaresum_f32_ref() { |
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return &_oil_function_impl_diffsquaresum_f32_ref; |
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} |
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#endif |
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#ifdef __SYMBIAN32__ |
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EXPORT_C void** _oil_function_class_ptr_diffsquaresum_f32 () { |
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oil_function_class_ptr_diffsquaresum_f32 = __oil_function_class_diffsquaresum_f32(); |
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return &oil_function_class_ptr_diffsquaresum_f32->func; |
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} |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
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103 |
#endif |
47c74d1534e1
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
104 |