initial import

1 files changed, 74 insertions, 0 deletions

diff --git a/dxr3memcpy.h b/dxr3memcpy.h
new file mode 100644
index 0000000..8ec863d
--- /dev/null
+++ b/dxr3memcpy.h
@@ -0,0 +1,74 @@
+/*****************************************************************************
+ * memcpy.h: functions and definitions of the MMX/MMX2/SSE optimized versions
+ * of memcpy
+ *****************************************************************************
+ * Copyright (C) 2001 Keuleu
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
+ *****************************************************************************
+ *
+ * Original code:
+ * 
+ * Copyright (C) 2000-2001 the xine project
+ * 
+ * This file is part of xine, a unix video player.
+ * 
+ *****************************************************************************/
+
+#ifndef _DXR3MEMCPY_H_
+#define _DXR3MEMCPY_H_
+
+#include "dxr3vdrincludes.h"
+
+// ==================================
+// size of buffer for benchmark
+#define BUFSIZE 1024*1024
+
+enum {
+  MEMCPY_PROBE = 0,
+  MEMCPY_GLIBC,
+  MEMCPY_KERNEL,
+  MEMCPY_MMX,
+  MEMCPY_MMXEXT,
+  MEMCPY_SSE
+};
+
+// ==================================
+struct memcpy_routine
+{
+	string name;
+	void *(* function)(void *to, const void *from, size_t len);
+	unsigned long long time;
+	uint32_t cpu_require;		// caps from dxr3cpu.h
+};
+
+// ==================================
+// little class to to a nice benchmark
+class cDxr3MemcpyBench
+{
+public:
+	cDxr3MemcpyBench(uint32_t config_flags = 0);
+
+private:
+	unsigned long long int rdtsc();
+
+	vector<memcpy_routine>	m_methods;
+};
+
+// ==================================
+// optimized/fast memcpy
+extern void *(* dxr3_memcpy)(void *to, const void *from, size_t len);
+
+#endif /*_DXR3MEMCPY_H_*/