diff -r e4d67989cc36 -r 47c74d1534e1 genericopenlibs/liboil/src/simdpack/abs_misc.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/genericopenlibs/liboil/src/simdpack/abs_misc.c Fri Apr 16 16:46:38 2010 +0300 @@ -0,0 +1,151 @@ +/* + * LIBOIL - Library of Optimized Inner Loops + * Copyright (c) 2003,2004 David A. Schleef + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +//Portions Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include +#include "liboil/simdpack/simdpack.h" + +#define ABS(x) ((x)>0 ? (x) : -(x)) + +static void +abs_u16_s16_unroll2 (uint16_t * dest, int dstr, int16_t * src, int sstr, int n) +{ + while (n & 1) { + *dest = ABS (*src); + OIL_INCREMENT (dest, dstr); + OIL_INCREMENT (src, sstr); + n--; + } + while (n > 0) { + *dest = ABS (*src); + OIL_INCREMENT (dest, dstr); + OIL_INCREMENT (src, sstr); + *dest = ABS (*src); + OIL_INCREMENT (dest, dstr); + OIL_INCREMENT (src, sstr); + n -= 2; + } +} +OIL_DEFINE_IMPL (abs_u16_s16_unroll2, abs_u16_s16); + +static void +abs_u16_s16_unroll4 (uint16_t * dest, int dstr, int16_t * src, int sstr, int n) +{ + while (n & 3) { + *dest = ABS (*src); + OIL_INCREMENT (dest, dstr); + OIL_INCREMENT (src, sstr); + n--; + } + while (n > 0) { + *dest = ABS (*src); + OIL_INCREMENT (dest, dstr); + OIL_INCREMENT (src, sstr); + *dest = ABS (*src); + OIL_INCREMENT (dest, dstr); + OIL_INCREMENT (src, sstr); + *dest = ABS (*src); + OIL_INCREMENT (dest, dstr); + OIL_INCREMENT (src, sstr); + *dest = ABS (*src); + OIL_INCREMENT (dest, dstr); + OIL_INCREMENT (src, sstr); + n -= 4; + } +} +OIL_DEFINE_IMPL (abs_u16_s16_unroll4, abs_u16_s16); + +static void +abs_u16_s16_fast (uint16_t * dest, int dstr, int16_t * src, int sstr, int n) +{ + int i; + int16_t x, y; + + for (i = 0; i < n; i++) { + x = *src; + y = ((x >> 15) & x); + *dest = x - y - y; + OIL_INCREMENT (dest, dstr); + OIL_INCREMENT (src, sstr); + } +} + +OIL_DEFINE_IMPL (abs_u16_s16_fast, abs_u16_s16); + + +/* Similar algorithm as clipping, but for absolute value. Note the stunt + * pulled to get around 2*y rolling over. */ + +static void +abs_u32_s32_fast (uint32_t * dest, int dstr, int32_t * src, int sstr, int n) +{ + int i; + int32_t x, y; + + for (i = 0; i < n; i++) { + x = OIL_GET(src, i * sstr, int32_t); + y = ((x >> 31) & x); + OIL_GET(dest, i * dstr, uint32_t) = x - y - y; + } +} + +OIL_DEFINE_IMPL (abs_u32_s32_fast, abs_u32_s32); + + + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_abs_u16_s16_unroll2() { + return &_oil_function_impl_abs_u16_s16_unroll2; +} +#endif + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_abs_u16_s16_unroll4() { + return &_oil_function_impl_abs_u16_s16_unroll4; +} +#endif + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_abs_u16_s16_fast() { + return &_oil_function_impl_abs_u16_s16_fast; +} +#endif + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_abs_u32_s32_fast() { + return &_oil_function_impl_abs_u32_s32_fast; +} +#endif +