Print done when done.

1 files changed, 69 insertions, 0 deletions

diff --git a/indra/llcommon/llframetimer.cpp b/indra/llcommon/llframetimer.cpp
new file mode 100644
index 0000000000..c66410651f
--- /dev/null
+++ b/indra/llcommon/llframetimer.cpp
@@ -0,0 +1,69 @@
+/** 
+ * @file llframetimer.cpp
+ *
+ * Copyright (c) 2002-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#include "linden_common.h"
+
+#include "u64.h"
+
+#include "llframetimer.h"
+
+// Static members
+//LLTimer	LLFrameTimer::sInternalTimer;
+U64 LLFrameTimer::sStartTotalTime = totalTime();
+F64 LLFrameTimer::sFrameTime = 0.0;
+U64 LLFrameTimer::sTotalTime = 0;
+F64 LLFrameTimer::sTotalSeconds = 0.0;
+S32 LLFrameTimer::sFrameCount = 0;
+U64 LLFrameTimer::sFrameDeltaTime = 0;
+const F64 USEC_PER_SECOND = 1000000.0;
+const F64 USEC_TO_SEC_F64 = 0.000001;
+
+// static
+void LLFrameTimer::updateFrameTime()
+{
+	U64 total_time = totalTime();
+	sFrameDeltaTime = total_time - sTotalTime;
+	sTotalTime = total_time;
+	sTotalSeconds = U64_to_F64(sTotalTime) * USEC_TO_SEC_F64;
+	sFrameTime = U64_to_F64(sTotalTime - sStartTotalTime) * USEC_TO_SEC_F64;
+	sFrameCount++;
+} 
+
+void LLFrameTimer::setExpiryAt(F64 seconds_since_epoch)
+{
+	mStartTime = sFrameTime;
+	mExpiry = seconds_since_epoch - (USEC_TO_SEC_F64 * sStartTotalTime);
+}
+
+F64 LLFrameTimer::expiresAt() const
+{
+	F64 expires_at = U64_to_F64(sStartTotalTime) * USEC_TO_SEC_F64;
+	expires_at += mExpiry;
+	return expires_at;
+}
+
+BOOL LLFrameTimer::checkExpirationAndReset(F32 expiration)
+{
+	//llinfos << "LLFrameTimer::checkExpirationAndReset()" << llendl;
+	//llinfos << "  mStartTime:" << mStartTime << llendl;
+	//llinfos << "  sFrameTime:" << sFrameTime << llendl;
+	//llinfos << "  mExpiry:   " <<  mExpiry << llendl;
+
+	if(hasExpired())
+	{
+		reset();
+		setTimerExpirySec(expiration);
+		return TRUE;
+	}
+	return FALSE;
+}
+
+// static
+F32 LLFrameTimer::getFrameDeltaTimeF32()
+{
+	return (F32)(U64_to_F64(sFrameDeltaTime) * USEC_TO_SEC_F64); 
+}