diff -r 4332f0f7be53 -r acd3cd4aaceb genericopenlibs/liboil/src/ref/error8x8.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/genericopenlibs/liboil/src/ref/error8x8.c Tue Aug 31 16:54:36 2010 +0300 @@ -0,0 +1,299 @@ +/* + * 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 + + +/** + * oil_err_intra8x8_u8: + * @d_1: + * @s1_8x8: + * @ss1: + * + * Calculates the sum of squared differences from the mean over + * @s1_8x8 and places the result in @d_1. This result is 64 times + * the variance of the mean of @s1_8x8. + */ +OIL_DEFINE_CLASS (err_intra8x8_u8, + "uint32_t *d_1, uint8_t *s1_8x8, int ss1"); +/** + * oil_err_inter8x8_u8: + * @d_1: + * @s1_8x8: + * @ss1: + * @s2_8x8: + * @ss2: + * + * Calculates an intermediate 8x8 block where each element is the + * difference between @s1_8x8 and @s2_8x8. + * The sum of squares of the difference of each element in the + * intermediate block and the mean of the intermediate block is + * placed into @d_1. This result is + * equal to 64 times the variance of the mean of the intermediate block. + */ +OIL_DEFINE_CLASS (err_inter8x8_u8, + "uint32_t *d_1, uint8_t *s1_8x8, int ss1, uint8_t *s2_8x8, int ss2"); +/** + * oil_err_inter8x8_u8_avg: + * @d_1: + * @s1_8x8: + * @ss1: + * @s2_8x8: + * @s3_8x8: + * @ss2: + * + * Calculates an intermediate 8x8 block where each element is the + * difference between @s1_8x8 and the average of @s2_8x8 and @s3_8x8. + * The sum of squares of the difference of each element in the + * intermediate block and the mean of the intermediate block is + * placed into @d_1. + * This result is 64 times the variance of the mean of the intermediate + * block. + * + * FIXME: This function is broken, since the reference function uses + * @ss2 as the stride for both @s2_8x8 and @s3_8x8. + */ +OIL_DEFINE_CLASS (err_inter8x8_u8_avg, + "uint32_t *d_1, uint8_t *s1_8x8, int ss1, uint8_t *s2_8x8, uint8_t *s3_8x8, int ss2"); + +#define DSP_OP_AVG(a,b) ((((int)(a)) + ((int)(b)))/2) +#define DSP_OP_DIFF(a,b) (((int)(a)) - ((int)(b))) + +static void +err_intra8x8_u8_ref (uint32_t *dest, uint8_t *src1, int ss1) +{ + uint32_t i; + uint32_t xsum=0; + uint32_t xxsum=0; + + for (i=8; i; i--) { + /* Examine alternate pixel locations. */ + xsum += src1[0]; + xxsum += src1[0]*src1[0]; + xsum += src1[1]; + xxsum += src1[1]*src1[1]; + xsum += src1[2]; + xxsum += src1[2]*src1[2]; + xsum += src1[3]; + xxsum += src1[3]*src1[3]; + xsum += src1[4]; + xxsum += src1[4]*src1[4]; + xsum += src1[5]; + xxsum += src1[5]*src1[5]; + xsum += src1[6]; + xxsum += src1[6]*src1[6]; + xsum += src1[7]; + xxsum += src1[7]*src1[7]; + + /* Step to next row of block. */ + src1 += ss1; + } + /* Compute population variance as mis-match metric. */ + *dest = (((xxsum<<6) - xsum*xsum )); +} +OIL_DEFINE_IMPL_REF (err_intra8x8_u8_ref, err_intra8x8_u8); + +static void +err_inter8x8_u8_ref (uint32_t *dest, uint8_t *src1, int ss1, uint8_t *src2, int ss2) +{ + uint32_t i; + uint32_t xsum=0; + uint32_t xxsum=0; + int32_t diff; + + for (i=8; i; i--) { + diff = DSP_OP_DIFF (src1[0], src2[0]); + xsum += diff; + xxsum += diff*diff; + + diff = DSP_OP_DIFF (src1[1], src2[1]); + xsum += diff; + xxsum += diff*diff; + + diff = DSP_OP_DIFF (src1[2], src2[2]); + xsum += diff; + xxsum += diff*diff; + + diff = DSP_OP_DIFF (src1[3], src2[3]); + xsum += diff; + xxsum += diff*diff; + + diff = DSP_OP_DIFF (src1[4], src2[4]); + xsum += diff; + xxsum += diff*diff; + + diff = DSP_OP_DIFF (src1[5], src2[5]); + xsum += diff; + xxsum += diff*diff; + + diff = DSP_OP_DIFF (src1[6], src2[6]); + xsum += diff; + xxsum += diff*diff; + + diff = DSP_OP_DIFF (src1[7], src2[7]); + xsum += diff; + xxsum += diff*diff; + + /* Step to next row of block. */ + src1 += ss1; + src2 += ss2; + } + + /* Compute and return population variance as mis-match metric. */ + *dest = (((xxsum<<6) - xsum*xsum)); +} +OIL_DEFINE_IMPL_REF (err_inter8x8_u8_ref, err_inter8x8_u8); + +static void +err_inter8x8_u8_avg_ref (uint32_t *dest, uint8_t *src1, int ss1, uint8_t *src2, uint8_t *src3, int ss2) +{ + uint32_t i; + uint32_t xsum=0; + uint32_t xxsum=0; + int32_t diff; + + for (i=8; i; i--) { + diff = DSP_OP_DIFF(src1[0], DSP_OP_AVG (src2[0], src3[0])); + xsum += diff; + xxsum += diff*diff; + + diff = DSP_OP_DIFF(src1[1], DSP_OP_AVG (src2[1], src3[1])); + xsum += diff; + xxsum += diff*diff; + + diff = DSP_OP_DIFF(src1[2], DSP_OP_AVG (src2[2], src3[2])); + xsum += diff; + xxsum += diff*diff; + + diff = DSP_OP_DIFF(src1[3], DSP_OP_AVG (src2[3], src3[3])); + xsum += diff; + xxsum += diff*diff; + + diff = DSP_OP_DIFF(src1[4], DSP_OP_AVG (src2[4], src3[4])); + xsum += diff; + xxsum += diff*diff; + + diff = DSP_OP_DIFF(src1[5], DSP_OP_AVG (src2[5], src3[5])); + xsum += diff; + xxsum += diff*diff; + + diff = DSP_OP_DIFF(src1[6], DSP_OP_AVG (src2[6], src3[6])); + xsum += diff; + xxsum += diff*diff; + + diff = DSP_OP_DIFF(src1[7], DSP_OP_AVG (src2[7], src3[7])); + xsum += diff; + xxsum += diff*diff; + + /* Step to next row of block. */ + src1 += ss1; + src2 += ss2; + src3 += ss2; + } + + /* Compute and return population variance as mis-match metric. */ + *dest = (((xxsum<<6) - xsum*xsum)); +} + +OIL_DEFINE_IMPL_REF (err_inter8x8_u8_avg_ref, err_inter8x8_u8_avg); + + +#ifdef __SYMBIAN32__ + +OilFunctionClass* __oil_function_class_err_intra8x8_u8() { + return &_oil_function_class_err_intra8x8_u8; +} +#endif + +#ifdef __SYMBIAN32__ + +OilFunctionClass* __oil_function_class_err_inter8x8_u8() { + return &_oil_function_class_err_inter8x8_u8; +} +#endif + +#ifdef __SYMBIAN32__ + +OilFunctionClass* __oil_function_class_err_inter8x8_u8_avg() { + return &_oil_function_class_err_inter8x8_u8_avg; +} +#endif + + + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_err_intra8x8_u8_ref() { + return &_oil_function_impl_err_intra8x8_u8_ref; +} +#endif + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_err_inter8x8_u8_ref() { + return &_oil_function_impl_err_inter8x8_u8_ref; +} +#endif + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_err_inter8x8_u8_avg_ref() { + return &_oil_function_impl_err_inter8x8_u8_avg_ref; +} +#endif + + + +#ifdef __SYMBIAN32__ + +EXPORT_C void** _oil_function_class_ptr_err_intra8x8_u8 () { + oil_function_class_ptr_err_intra8x8_u8 = __oil_function_class_err_intra8x8_u8(); + return &oil_function_class_ptr_err_intra8x8_u8->func; + } +#endif + +#ifdef __SYMBIAN32__ + +EXPORT_C void** _oil_function_class_ptr_err_inter8x8_u8 () { + oil_function_class_ptr_err_inter8x8_u8 = __oil_function_class_err_inter8x8_u8(); + return &oil_function_class_ptr_err_inter8x8_u8->func; + } +#endif + +#ifdef __SYMBIAN32__ + +EXPORT_C void** _oil_function_class_ptr_err_inter8x8_u8_avg () { + oil_function_class_ptr_err_inter8x8_u8_avg = __oil_function_class_err_inter8x8_u8_avg(); + return &oil_function_class_ptr_err_inter8x8_u8_avg->func; + } +#endif +