diff -r e4d67989cc36 -r 47c74d1534e1 genericopenlibs/liboil/src/conv/conv_bitstuff.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/genericopenlibs/liboil/src/conv/conv_bitstuff.c Fri Apr 16 16:46:38 2010 +0300 @@ -0,0 +1,315 @@ +/* + * 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 "conv.h" + +#ifdef HAVE_IEEE754_H + +#include + +static void conv_f32_u8_bitstuff(float *dst, int dest_stride, const uint8_t *src, + int src_stride, int n) +{ + const float offset = -65536; + union ieee754_float id; + int i; + + id.f = 0x1ffff; + for(i=0;i>31) + +#if 0 +/* broken */ +/* This implementation is slightly inaccurate */ +static void conv_s16_f32_bitstuff(int16_t *dst, int dest_stride, const float *src, + int src_stride, int n) +{ + const float offset = 98304.5; + union ieee754_double id; + int i; + int16_t d; + + for(i=0;i> 4); + d += (-32768-d)*signbit_S32(id.ieee.exponent-1039); + d += (32767-d)*signbit_S32(1039-id.ieee.exponent); + *dst = d; + OIL_INCREMENT(dst, dest_stride); + OIL_INCREMENT(src, src_stride); + } +} +OIL_DEFINE_IMPL(conv_s16_f32_bitstuff, conv_s16_f32); +#endif + + +#if 0 +static void conv_f64_u8_bitstuff(float *dst, int dest_stride, const uint8_t *src, + int src_stride, int n) +{ + const float offset = -65536; + union ieee754_float id; + int i; + + id.f = 0x1ffff; + for(i=0;i> 4); + d += (-32768-d)*signbit_S32(id.ieee.exponent-1039); + d += (32767-d)*signbit_S32(1039-id.ieee.exponent); +#if 0 +/* for clipping */ + if (id.ieee.exponent < 1039) { + d = -32768; + } + if (id.ieee.exponent > 1039) { + d = 32767; + } +#endif + *dst = d; + OIL_INCREMENT (dst, dest_stride); + OIL_INCREMENT (src, src_stride); + } +} +OIL_DEFINE_IMPL(conv_s16_f64_bitstuff, conv_s16_f64); +#endif + + + + + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_conv_f32_u8_bitstuff() { + return &_oil_function_impl_conv_f32_u8_bitstuff; +} +#endif + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_conv_f32_s8_bitstuff() { + return &_oil_function_impl_conv_f32_s8_bitstuff; +} +#endif + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_conv_f32_u16_bitstuff() { + return &_oil_function_impl_conv_f32_u16_bitstuff; +} +#endif + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_conv_f32_s16_bitstuff() { + return &_oil_function_impl_conv_f32_s16_bitstuff; +} +#endif + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_conv_s16_f32_bitstuff() { + return &_oil_function_impl_conv_s16_f32_bitstuff; +} +#endif + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_conv_f64_u8_bitstuff() { + return &_oil_function_impl_conv_f64_u8_bitstuff; +} +#endif + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_conv_f64_s8_bitstuff() { + return &_oil_function_impl_conv_f64_s8_bitstuff; +} +#endif + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_conv_f64_u16_bitstuff() { + return &_oil_function_impl_conv_f64_u16_bitstuff; +} +#endif + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_conv_f64_s16_bitstuff() { + return &_oil_function_impl_conv_f64_s16_bitstuff; +} +#endif + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_conv_s16_f64_bitstuff() { + return &_oil_function_impl_conv_s16_f64_bitstuff; +} +#endif + +#endif