1 files changed, 0 insertions, 110 deletions
diff --git a/src/server/FrameTimer.hpp b/src/server/FrameTimer.hpp
deleted file mode 100644
index 367ac900..00000000
--- a/src/server/FrameTimer.hpp
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
-  This file is part of Ingen.
-  Copyright 2017 David Robillard <http://drobilla.net/>
-
-  Ingen is free software: you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free
-  Software Foundation, either version 3 of the License, or any later version.
-
-  Ingen 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 Affero General Public License for details.
-
-  You should have received a copy of the GNU Affero General Public License
-  along with Ingen.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#ifndef INGEN_ENGINE_FRAMETIMER_HPP
-#define INGEN_ENGINE_FRAMETIMER_HPP
-
-#include <chrono>
-#include <cmath>
-#include <cstdint>
-
-namespace Ingen {
-namespace Server {
-
-/** Delay-locked loop for monotonic sample time.
- *
- * See "Using a DLL to filter time" by Fons Adriaensen
- * http://kokkinizita.linuxaudio.org/papers/usingdll.pdf
- */
-class FrameTimer
-{
-public:
-	static constexpr double PI        = 3.14159265358979323846;
-	static constexpr double bandwidth = 1.0 / 8.0; // Hz
-	static constexpr double us_per_s  = 1000000.0;
-
-	FrameTimer(uint32_t period_size, uint32_t sample_rate)
-		: tper(((double)period_size / (double)sample_rate) * us_per_s)
-		, omega(2 * PI * bandwidth / us_per_s * tper)
-		, b(sqrt(2) * omega)
-		, c(omega * omega)
-		, nper(period_size)
-	{
-	}
-
-	/** Update the timer for current real time `usec` and frame `frame`. */
-	void update(uint64_t usec, uint64_t frame) {
-		if (!initialized || frame != n1) {
-			init(usec, frame);
-			return;
-		}
-
-		// Calculate loop error
-		const double e = ((double)usec - t1);
-
-		// Update loop
-		t0 = t1;
-		t1 += b * e + e2;
-		e2 += c * e;
-
-		// Update frame counts
-		n0 = n1;
-		n1 += nper;
-	}
-
-	/** Return an estimate of the frame time for current real time `usec`. */
-	uint64_t frame_time(uint64_t usec) const {
-		if (!initialized) {
-			return 0;
-		}
-
-		const double delta = (double)usec - t0;
-		const double period = t1 - t0;
-		return n0 + std::round(delta / period * nper);
-	}
-
-private:
-	void init(uint64_t now, uint64_t frame) {
-		// Init loop
-		e2 = tper;
-		t0 = now;
-		t1 = t0 + e2;
-
-		// Init sample counts
-		n0 = frame;
-		n1 = n0 + nper;
-
-		initialized = true;
-	}
-
-	const double tper;
-	const double omega;
-	const double b;
-	const double c;
-
-	uint64_t nper;
-	double   e2;
-	double   t0;
-	double   t1;
-	uint64_t n0;
-	uint64_t n1;
-	bool     initialized;
-};
-
-} // namespace Server
-} // namespace Ingen
-
-#endif // INGEN_ENGINE_FRAMETIMER_HPP