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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <liboil/liboilfunction.h>
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OIL_DECLARE_CLASS (sad8x8_u8_avg);
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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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__asm__ __volatile__ (
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" pcmpeqd %%mm5, %%mm5 \n\t" /* fefefefefefefefe in mm5 */
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sl@0
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" paddb %%mm5, %%mm5 \n\t"
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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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" 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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" movq %%mm0, %%mm2 \n\t"
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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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" 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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sl@0
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" paddw %%mm1, %%mm7 \n\t" /* accumulate difference... */
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sl@0
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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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" dec %%edi \n\t"
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" jnz 1b \n\t"
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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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: "=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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);
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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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__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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" 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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" 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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#ifdef __SYMBIAN32__
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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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#ifdef __SYMBIAN32__
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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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