--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/genericopenlibs/liboil/src/simdpack/average2_u8.c Tue Aug 31 16:54:36 2010 +0300
@@ -0,0 +1,141 @@
+/*
+ * 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>
+#include "liboil/simdpack/simdpack.h"
+
+#include <math.h>
+
+static void
+average2_u8_trick (uint8_t * dest, int dstr, uint8_t *src1, int sstr1,
+ uint8_t *src2, int sstr2, int n)
+{
+ unsigned int x, y, d;
+
+ while (n&3) {
+ *dest = (*src1 + *src2) >> 1;
+ src1 += sstr1;
+ src2 += sstr2;
+ dest += dstr;
+ n--;
+ }
+ while (n > 0) {
+ x = (src1[0] << 24) | (src1[sstr1] << 16) | (src1[2 *
+ sstr1] << 8) | (src1[3 * sstr1]);
+ y = (src2[0] << 24) | (src2[sstr2] << 16) | (src2[2 *
+ sstr2] << 8) | (src2[3 * sstr2]);
+ d = (((x ^ y) & 0xfefefefe) >> 1) + (x & y);
+ dest[0] = (d >> 24);
+ dest[1*dstr] = (d >> 16);
+ dest[2*dstr] = (d >> 8);
+ dest[3*dstr] = (d >> 0);
+ src1 += 4 * sstr1;
+ src2 += 4 * sstr2;
+ dest += 4 * dstr;
+ n -= 4;
+ }
+}
+
+OIL_DEFINE_IMPL (average2_u8_trick, average2_u8);
+
+static void
+average2_u8_fast (uint8_t * dest, int dstr, uint8_t *src1, int sstr1,
+ uint8_t *src2, int sstr2, int n)
+{
+ while (n > 0) {
+ *dest = (*src1 + *src2) >> 1;
+ src1 += sstr1;
+ src2 += sstr2;
+ dest += dstr;
+ n--;
+ }
+}
+
+OIL_DEFINE_IMPL (average2_u8_fast, average2_u8);
+
+static void
+average2_u8_unroll4 (uint8_t * dest, int dstr, uint8_t *src1, int sstr1,
+ uint8_t *src2, int sstr2, int n)
+{
+ while (n & 0x3) {
+ *dest = (*src1 + *src2) >> 1;
+ dest += dstr;
+ src1 += sstr1;
+ src2 += sstr2;
+ n--;
+ }
+ while (n > 0) {
+ *dest = (*src1 + *src2) >> 1;
+ dest += dstr;
+ src1 += sstr1;
+ src2 += sstr2;
+ *dest = (*src1 + *src2) >> 1;
+ dest += dstr;
+ src1 += sstr1;
+ src2 += sstr2;
+ *dest = (*src1 + *src2) >> 1;
+ dest += dstr;
+ src1 += sstr1;
+ src2 += sstr2;
+ *dest = (*src1 + *src2) >> 1;
+ dest += dstr;
+ src1 += sstr1;
+ src2 += sstr2;
+ n -= 4;
+ }
+}
+
+OIL_DEFINE_IMPL (average2_u8_unroll4, average2_u8);
+
+
+
+#ifdef __SYMBIAN32__
+
+OilFunctionImpl* __oil_function_impl_average2_u8_trick() {
+ return &_oil_function_impl_average2_u8_trick;
+}
+#endif
+
+#ifdef __SYMBIAN32__
+
+OilFunctionImpl* __oil_function_impl_average2_u8_fast() {
+ return &_oil_function_impl_average2_u8_fast;
+}
+#endif
+
+#ifdef __SYMBIAN32__
+
+OilFunctionImpl* __oil_function_impl_average2_u8_unroll4() {
+ return &_oil_function_impl_average2_u8_unroll4;
+}
+#endif
+