genericopenlibs/liboil/src/mmx/copy_mmx.c
branchRCL_3
changeset 56 acd3cd4aaceb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/genericopenlibs/liboil/src/mmx/copy_mmx.c	Tue Aug 31 16:54:36 2010 +0300
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2005
+ *	Eric Anholt.  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/liboilclasses.h>
+#include <liboil/liboilfunction.h>
+
+#ifdef HAVE_GCC_ASM 
+#include <mmintrin.h>  
+#endif
+
+static void
+copy_u8_mmx (uint8_t *dest, const uint8_t *src, int n)
+{
+#ifdef HAVE_GCC_ASM 
+  for (; n >= 8; n -= 8) {
+    *(__m64 *)dest = *(__m64 *)src;
+    src += 8;
+    dest += 8;
+  }
+  for (; n > 0; n--) {
+    *dest++ = *src++;
+  }
+  _mm_empty();
+#endif  
+}
+OIL_DEFINE_IMPL_FULL (copy_u8_mmx, copy_u8, OIL_IMPL_FLAG_MMX);
+
+static void
+copy_u8_mmx_unroll4 (uint8_t *dest, const uint8_t *src, int n)
+{
+#ifdef HAVE_GCC_ASM 
+  for (; n >= 32; n -= 32) {
+    ((__m64 *)dest)[0] = ((__m64 *)src)[0];
+    ((__m64 *)dest)[1] = ((__m64 *)src)[1];
+    ((__m64 *)dest)[2] = ((__m64 *)src)[2];
+    ((__m64 *)dest)[3] = ((__m64 *)src)[3];
+    src += 32;
+    dest += 32;
+  }
+  for (; n >= 8; n -= 8) {
+    *(__m64 *)dest = *(__m64 *)src;
+    src += 8;
+    dest += 8;
+  }
+  for (; n > 0; n--) {
+    *dest++ = *src++;
+  }
+  _mm_empty();
+#endif  
+}
+OIL_DEFINE_IMPL_FULL (copy_u8_mmx_unroll4, copy_u8, OIL_IMPL_FLAG_MMX);
+
+
+#ifdef	__SYMBIAN32__
+ 
+OilFunctionImpl* __oil_function_impl_copy_u8_mmx() {
+		return &_oil_function_impl_copy_u8_mmx;
+}
+#endif
+
+#ifdef	__SYMBIAN32__
+ 
+OilFunctionImpl* __oil_function_impl_copy_u8_mmx_unroll4() {
+		return &_oil_function_impl_copy_u8_mmx_unroll4;
+}
+#endif
+