--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/genericopenlibs/liboil/src/ref/error8x8.c Fri Apr 16 16:46:38 2010 +0300
@@ -0,0 +1,299 @@
+/*
+ * LIBOIL - Library of Optimized Inner Loops
+ * Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org>
+ * 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 <liboil/liboilfunction.h>
+
+
+/**
+ * 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
+