author | hgs |
Tue, 02 Nov 2010 19:23:22 +0530 | |
changeset 79 | 564bc7b7ad27 |
parent 18 | 47c74d1534e1 |
permissions | -rw-r--r-- |
18
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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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|
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#include <liboil/liboilfunction.h> |
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|
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OIL_DECLARE_CLASS (sad8x8_u8_avg); |
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|
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static void |
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sad8x8_u8_avg_mmx (uint32_t *dest, uint8_t *src1, int ss1, uint8_t *src2, uint8_t *src3, int ss2) |
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{ |
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#if !defined(__WINSCW__) && !defined(__WINS__) |
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uint32_t diff; |
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|
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__asm__ __volatile__ ( |
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" pcmpeqd %%mm5, %%mm5 \n\t" /* fefefefefefefefe in mm5 */ |
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" paddb %%mm5, %%mm5 \n\t" |
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|
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" pxor %%mm6, %%mm6 \n\t" /* zero out mm6 for unpack */ |
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" pxor %%mm7, %%mm7 \n\t" /* mm7 contains the result */ |
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" mov $8, %%edi \n\t" /* 8 rows */ |
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"1: \n\t" |
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" movq (%1), %%mm0 \n\t" /* take 8 bytes */ |
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|
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" movq (%2), %%mm2 \n\t" |
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" movq (%3), %%mm3 \n\t" /* take average of mm2 and mm3 */ |
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" movq %%mm2, %%mm1 \n\t" |
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" pand %%mm3, %%mm1 \n\t" |
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" pxor %%mm2, %%mm3 \n\t" |
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" pand %%mm5, %%mm3 \n\t" |
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" psrlq $1, %%mm3 \n\t" |
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" paddb %%mm3, %%mm1 \n\t" |
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61 |
|
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" movq %%mm0, %%mm2 \n\t" |
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|
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" psubusb %%mm1, %%mm0 \n\t" /* A - B */ |
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" psubusb %%mm2, %%mm1 \n\t" /* B - A */ |
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" por %%mm1, %%mm0 \n\t" /* and or gives abs difference */ |
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" movq %%mm0, %%mm1 \n\t" |
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|
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" punpcklbw %%mm6, %%mm0 \n\t" /* unpack to higher precision for accumulation */ |
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" paddw %%mm0, %%mm7 \n\t" /* accumulate difference... */ |
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" punpckhbw %%mm6, %%mm1 \n\t" /* unpack high four bytes to higher precision */ |
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" add %4, %1 \n\t" /* Inc pointer into the new data */ |
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" paddw %%mm1, %%mm7 \n\t" /* accumulate difference... */ |
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" add %5, %2 \n\t" /* Inc pointer into ref data */ |
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" add %5, %3 \n\t" /* Inc pointer into ref data */ |
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|
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" dec %%edi \n\t" |
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" jnz 1b \n\t" |
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|
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" movq %%mm7, %%mm0 \n\t" |
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" psrlq $32, %%mm7 \n\t" |
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" paddw %%mm0, %%mm7 \n\t" |
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" movq %%mm7, %%mm0 \n\t" |
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" psrlq $16, %%mm7 \n\t" |
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" paddw %%mm0, %%mm7 \n\t" |
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" movd %%mm7, %0 \n\t" |
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" andl $0xffff, %0 \n\t" |
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" emms \n\t" |
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89 |
|
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: "=m" (diff), |
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"+r" (src1), |
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"+r" (src2), |
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"+r" (src3) |
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: "m" (ss1), |
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"m" (ss2) |
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: "edi", "memory" |
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97 |
); |
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*dest = diff; |
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#endif |
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} |
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OIL_DEFINE_IMPL_FULL (sad8x8_u8_avg_mmx, sad8x8_u8_avg, OIL_IMPL_FLAG_MMX); |
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static void |
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sad8x8_u8_avg_mmxext (uint32_t *dest, uint8_t *src1, int ss1, uint8_t *src2, uint8_t *src3, int ss2) |
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{ |
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#if !defined(__WINSCW__) && !defined(__WINS__) |
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uint32_t diff; |
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|
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__asm__ __volatile__ ( |
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" pxor %%mm7, %%mm7 \n\t" /* mm7 contains the result */ |
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" mov $0x01010101, %%eax \n\t" |
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" movd %%eax, %%mm6 \n\t" |
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" punpcklbw %%mm6, %%mm6 \n\t" |
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" mov $8, %%eax \n\t" |
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"1: \n\t" |
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" movq (%1), %%mm0 \n\t" /* take 8 bytes */ |
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" movq (%2), %%mm1 \n\t" |
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" movq (%3), %%mm2 \n\t" |
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" movq %%mm1, %%mm3 \n\t" |
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" pavgb %%mm2, %%mm1 \n\t" |
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" pxor %%mm2, %%mm3 \n\t" |
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" pand %%mm6, %%mm3 \n\t" |
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" psubb %%mm3, %%mm1 \n\t" |
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" psadbw %%mm1, %%mm0 \n\t" |
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|
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" add %4, %1 \n\t" /* Inc pointer into the new data */ |
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" paddw %%mm0, %%mm7 \n\t" /* accumulate difference... */ |
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" add %5, %2 \n\t" /* Inc pointer into ref data */ |
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" add %5, %3 \n\t" /* Inc pointer into ref data */ |
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" decl %%eax \n\t" |
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" jnz 1b \n\t" |
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|
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" movd %%mm7, %0 \n\t" |
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" emms \n\t" |
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: "=m" (diff), |
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"+r" (src1), |
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"+r" (src2), |
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"+r" (src3) |
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: "m" (ss1), |
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"m" (ss2) |
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: "eax", "memory" |
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); |
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*dest = diff; |
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#endif |
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} |
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OIL_DEFINE_IMPL_FULL (sad8x8_u8_avg_mmxext, sad8x8_u8_avg, OIL_IMPL_FLAG_MMX | OIL_IMPL_FLAG_MMXEXT); |
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|
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|
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#ifdef __SYMBIAN32__ |
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|
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OilFunctionImpl* __oil_function_impl_sad8x8_u8_avg_mmx, sad8x8_u8_avg() { |
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return &_oil_function_impl_sad8x8_u8_avg_mmx, sad8x8_u8_avg; |
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} |
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#endif |
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|
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#ifdef __SYMBIAN32__ |
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|
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OilFunctionImpl* __oil_function_impl_sad8x8_u8_avg_mmxext, sad8x8_u8_avg() { |
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return &_oil_function_impl_sad8x8_u8_avg_mmxext, sad8x8_u8_avg; |
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} |
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#endif |
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163 |