1 files changed, 66 insertions, 0 deletions
diff --git a/tjutil.c b/tjutil.c
new file mode 100644
index 0000000..6618d15
--- /dev/null
+++ b/tjutil.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C)2011 D. R. Commander.  All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ *   this list of conditions and the following disclaimer.
+ * - 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.
+ * - Neither the name of the libjpeg-turbo Project nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDERS OR CONTRIBUTORS 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.
+ */
+
+#ifdef _WIN32
+
+#include <windows.h>
+
+static double getfreq(void)
+{
+	LARGE_INTEGER freq;
+	if(!QueryPerformanceFrequency(&freq)) return 0.0;
+	return (double)freq.QuadPart;
+}
+
+static double f=-1.0;
+
+double gettime(void)
+{
+	LARGE_INTEGER t;
+	if(f<0.0) f=getfreq();
+	if(f==0.0) return (double)GetTickCount()/1000.;
+	else
+	{
+		QueryPerformanceCounter(&t);
+		return (double)t.QuadPart/f;
+	}
+}
+
+#else
+
+#include <stdlib.h>
+#include <sys/time.h>
+
+double gettime(void)
+{
+	struct timeval tv;
+	if(gettimeofday(&tv, NULL)<0) return 0.0;
+	else return (double)tv.tv_sec+((double)tv.tv_usec/1000000.);
+}
+
+#endif