1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/ossrv/genericopenlibs/liboil/src/i386/sad8x8avg_i386.c Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,163 @@
1.4 +/*
1.5 + * LIBOIL - Library of Optimized Inner Loops
1.6 + * Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org>
1.7 + * All rights reserved.
1.8 + *
1.9 + * Redistribution and use in source and binary forms, with or without
1.10 + * modification, are permitted provided that the following conditions
1.11 + * are met:
1.12 + * 1. Redistributions of source code must retain the above copyright
1.13 + * notice, this list of conditions and the following disclaimer.
1.14 + * 2. Redistributions in binary form must reproduce the above copyright
1.15 + * notice, this list of conditions and the following disclaimer in the
1.16 + * documentation and/or other materials provided with the distribution.
1.17 + *
1.18 + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
1.19 + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1.20 + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.21 + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
1.22 + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1.23 + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1.24 + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.25 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1.26 + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1.27 + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.28 + * POSSIBILITY OF SUCH DAMAGE.
1.29 + */
1.30 +//Portions Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
1.31 +
1.32 +#ifdef HAVE_CONFIG_H
1.33 +#include "config.h"
1.34 +#endif
1.35 +
1.36 +#include <liboil/liboilfunction.h>
1.37 +
1.38 +OIL_DECLARE_CLASS (sad8x8_u8_avg);
1.39 +
1.40 +static void
1.41 +sad8x8_u8_avg_mmx (uint32_t *dest, uint8_t *src1, int ss1, uint8_t *src2, uint8_t *src3, int ss2)
1.42 +{
1.43 +#if !defined(__WINSCW__) && !defined(__WINS__)
1.44 +uint32_t diff;
1.45 +
1.46 + __asm__ __volatile__ (
1.47 + " pcmpeqd %%mm5, %%mm5 \n\t" /* fefefefefefefefe in mm5 */
1.48 + " paddb %%mm5, %%mm5 \n\t"
1.49 +
1.50 + " pxor %%mm6, %%mm6 \n\t" /* zero out mm6 for unpack */
1.51 + " pxor %%mm7, %%mm7 \n\t" /* mm7 contains the result */
1.52 + " mov $8, %%edi \n\t" /* 8 rows */
1.53 + "1: \n\t"
1.54 + " movq (%1), %%mm0 \n\t" /* take 8 bytes */
1.55 +
1.56 + " movq (%2), %%mm2 \n\t"
1.57 + " movq (%3), %%mm3 \n\t" /* take average of mm2 and mm3 */
1.58 + " movq %%mm2, %%mm1 \n\t"
1.59 + " pand %%mm3, %%mm1 \n\t"
1.60 + " pxor %%mm2, %%mm3 \n\t"
1.61 + " pand %%mm5, %%mm3 \n\t"
1.62 + " psrlq $1, %%mm3 \n\t"
1.63 + " paddb %%mm3, %%mm1 \n\t"
1.64 +
1.65 + " movq %%mm0, %%mm2 \n\t"
1.66 +
1.67 + " psubusb %%mm1, %%mm0 \n\t" /* A - B */
1.68 + " psubusb %%mm2, %%mm1 \n\t" /* B - A */
1.69 + " por %%mm1, %%mm0 \n\t" /* and or gives abs difference */
1.70 + " movq %%mm0, %%mm1 \n\t"
1.71 +
1.72 + " punpcklbw %%mm6, %%mm0 \n\t" /* unpack to higher precision for accumulation */
1.73 + " paddw %%mm0, %%mm7 \n\t" /* accumulate difference... */
1.74 + " punpckhbw %%mm6, %%mm1 \n\t" /* unpack high four bytes to higher precision */
1.75 + " add %4, %1 \n\t" /* Inc pointer into the new data */
1.76 + " paddw %%mm1, %%mm7 \n\t" /* accumulate difference... */
1.77 + " add %5, %2 \n\t" /* Inc pointer into ref data */
1.78 + " add %5, %3 \n\t" /* Inc pointer into ref data */
1.79 +
1.80 + " dec %%edi \n\t"
1.81 + " jnz 1b \n\t"
1.82 +
1.83 + " movq %%mm7, %%mm0 \n\t"
1.84 + " psrlq $32, %%mm7 \n\t"
1.85 + " paddw %%mm0, %%mm7 \n\t"
1.86 + " movq %%mm7, %%mm0 \n\t"
1.87 + " psrlq $16, %%mm7 \n\t"
1.88 + " paddw %%mm0, %%mm7 \n\t"
1.89 + " movd %%mm7, %0 \n\t"
1.90 + " andl $0xffff, %0 \n\t"
1.91 + " emms \n\t"
1.92 +
1.93 + : "=m" (diff),
1.94 + "+r" (src1),
1.95 + "+r" (src2),
1.96 + "+r" (src3)
1.97 + : "m" (ss1),
1.98 + "m" (ss2)
1.99 + : "edi", "memory"
1.100 + );
1.101 + *dest = diff;
1.102 +#endif
1.103 +}
1.104 +
1.105 +OIL_DEFINE_IMPL_FULL (sad8x8_u8_avg_mmx, sad8x8_u8_avg, OIL_IMPL_FLAG_MMX);
1.106 +
1.107 +static void
1.108 +sad8x8_u8_avg_mmxext (uint32_t *dest, uint8_t *src1, int ss1, uint8_t *src2, uint8_t *src3, int ss2)
1.109 +{
1.110 +#if !defined(__WINSCW__) && !defined(__WINS__)
1.111 + uint32_t diff;
1.112 +
1.113 + __asm__ __volatile__ (
1.114 + " pxor %%mm7, %%mm7 \n\t" /* mm7 contains the result */
1.115 + " mov $0x01010101, %%eax \n\t"
1.116 + " movd %%eax, %%mm6 \n\t"
1.117 + " punpcklbw %%mm6, %%mm6 \n\t"
1.118 + " mov $8, %%eax \n\t"
1.119 + "1: \n\t"
1.120 + " movq (%1), %%mm0 \n\t" /* take 8 bytes */
1.121 + " movq (%2), %%mm1 \n\t"
1.122 + " movq (%3), %%mm2 \n\t"
1.123 + " movq %%mm1, %%mm3 \n\t"
1.124 + " pavgb %%mm2, %%mm1 \n\t"
1.125 + " pxor %%mm2, %%mm3 \n\t"
1.126 + " pand %%mm6, %%mm3 \n\t"
1.127 + " psubb %%mm3, %%mm1 \n\t"
1.128 + " psadbw %%mm1, %%mm0 \n\t"
1.129 +
1.130 + " add %4, %1 \n\t" /* Inc pointer into the new data */
1.131 + " paddw %%mm0, %%mm7 \n\t" /* accumulate difference... */
1.132 + " add %5, %2 \n\t" /* Inc pointer into ref data */
1.133 + " add %5, %3 \n\t" /* Inc pointer into ref data */
1.134 + " decl %%eax \n\t"
1.135 + " jnz 1b \n\t"
1.136 +
1.137 + " movd %%mm7, %0 \n\t"
1.138 + " emms \n\t"
1.139 + : "=m" (diff),
1.140 + "+r" (src1),
1.141 + "+r" (src2),
1.142 + "+r" (src3)
1.143 + : "m" (ss1),
1.144 + "m" (ss2)
1.145 + : "eax", "memory"
1.146 + );
1.147 + *dest = diff;
1.148 +#endif
1.149 +}
1.150 +OIL_DEFINE_IMPL_FULL (sad8x8_u8_avg_mmxext, sad8x8_u8_avg, OIL_IMPL_FLAG_MMX | OIL_IMPL_FLAG_MMXEXT);
1.151 +
1.152 +
1.153 +#ifdef __SYMBIAN32__
1.154 +
1.155 +OilFunctionImpl* __oil_function_impl_sad8x8_u8_avg_mmx, sad8x8_u8_avg() {
1.156 + return &_oil_function_impl_sad8x8_u8_avg_mmx, sad8x8_u8_avg;
1.157 +}
1.158 +#endif
1.159 +
1.160 +#ifdef __SYMBIAN32__
1.161 +
1.162 +OilFunctionImpl* __oil_function_impl_sad8x8_u8_avg_mmxext, sad8x8_u8_avg() {
1.163 + return &_oil_function_impl_sad8x8_u8_avg_mmxext, sad8x8_u8_avg;
1.164 +}
1.165 +#endif
1.166 +