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authorChristian Glöckner <cgloeckner@freenet.de>2016-03-22 14:32:54 +0100
committerChristian Glöckner <cgloeckner@freenet.de>2016-03-22 14:34:07 +0100
commit8e2124ad955b51efb2f539998a369d7ca07cbc73 (patch)
treeaba3f27eac06340d2978d1ff93cb0da432d8bc80
parent185e5ac0139973c3e465013318a6bf73a78d53ac (diff)
Introduced Settings structure
-rw-r--r--src/settings.h127
1 files changed, 127 insertions, 0 deletions
diff --git a/src/settings.h b/src/settings.h
new file mode 100644
index 0000000..6396fc4
--- /dev/null
+++ b/src/settings.h
@@ -0,0 +1,127 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * settings.h
+ *
+ * Tue Mar 22 10:59:46 CET 2016
+ * Copyright 2016 Christian Glckner
+ * cgloeckner@freenet.de
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo 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 DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#pragma once
+
+#include <atomic>
+#include <cassert>
+
+template <typename T> class SettingRef
+{
+public:
+ SettingRef(std::atomic<T>& value)
+ : value{value}
+ , cache{}
+ {
+ // string isn't lock free either
+ assert((std::is_same<T, std::string>::value || value.is_lock_free()));
+ }
+
+ bool hasChanged()
+ {
+ T tmp = cache;
+ cache.exchange(value);
+ return tmp == cache;
+ }
+
+ T getValue() const
+ {
+ return cache;
+ }
+
+private:
+ std::atomic<T>& value;
+ std::atomic<T> cache;
+};
+
+struct Settings
+{
+ std::atomic<bool> enable_velocity_modifier;
+ std::atomic<float> velocity_modifier_falloff;
+ std::atomic<float> velocity_modifier_weight;
+
+ std::atomic<bool> enable_velocity_randomiser;
+ std::atomic<float> velocity_randomiser_weight;
+
+ std::atomic<int> samplerate;
+
+ std::atomic<bool> enable_resampling;
+};
+
+struct SettingsGetter
+{
+ SettingRef<bool> enable_velocity_modifier;
+ SettingRef<float> velocity_modifier_falloff;
+ SettingRef<float> velocity_modifier_weight;
+
+ SettingRef<bool> enable_velocity_randomiser;
+ SettingRef<float> velocity_randomiser_weight;
+
+ SettingRef<int> samplerate;
+
+ SettingRef<bool> enable_resampling;
+
+ SettingsGetter(Settings& settings)
+ : enable_velocity_modifier{settings.enable_velocity_modifier}
+ , velocity_modifier_falloff{settings.velocity_modifier_falloff}
+ , velocity_modifier_weight{settings.velocity_modifier_weight}
+ , enable_velocity_randomiser{settings.enable_velocity_randomiser}
+ , velocity_randomiser_weight{settings.velocity_randomiser_weight}
+ , samplerate{settings.samplerate}
+ , enable_resampling{settings.enable_resampling}
+ {
+ }
+};
+
+// lovely reminder: NO, GLOCKE. NOOOO!!
+/*
+enum class IntParams {
+ Foo = 0
+};
+
+struct Settings {
+ std::array<std::atomic<int>, 5> ints;
+
+ Settings()
+ : ints{} {
+ //get(IntParams::Foo).store(3);
+ }
+
+ std::atomic<int>& get(IntParams param) {
+ return ints[(size_t)param];
+ }
+};
+
+struct SettingsGetter {
+ std::vector<SettingRef<int>> ints;
+
+ SettingsGetter(Settings& parent) {
+ for (auto& atomic: parent.ints) {
+ ints.emplace_back(atomic);
+ }
+ }
+};
+*/