Add powermap filter and settings.

6 files changed, 151 insertions, 2 deletions

diff --git a/src/Makefile.am b/src/Makefile.am
index 09df750..56e06b4 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -59,6 +59,7 @@ libdg_la_SOURCES = \
 	path.cc \
 	powerlist.cc \
 	powermap.cc \
+	powermapfilter.cc \
 	random.cc \
 	sample.cc \
 	sample_selection.cc \
@@ -115,6 +116,7 @@ EXTRA_DIST = \
 	platform.h \
 	powerlist.h \
 	powermap.h \
+	powermapfilter.h \
 	random.h \
 	range.h \
 	rangemap.h \
diff --git a/src/inputprocessor.cc b/src/inputprocessor.cc
index 6249c5b..ea4917e 100644
--- a/src/inputprocessor.cc
+++ b/src/inputprocessor.cc
@@ -32,8 +32,9 @@
 
 #include "instrument.h"
 
-#include "staminafilter.h"
 #include "latencyfilter.h"
+#include "powermapfilter.h"
+#include "staminafilter.h"
 #include "velocityfilter.h"
 
 #include "cpp11fix.h"
@@ -50,6 +51,7 @@ InputProcessor::InputProcessor(Settings& settings,
 	filters.emplace_back(std::make_unique<StaminaFilter>(settings));
 	filters.emplace_back(std::make_unique<LatencyFilter>(settings, random));
 	filters.emplace_back(std::make_unique<VelocityFilter>(settings, random));
+	filters.emplace_back(std::make_unique<PowermapFilter>(settings));
 }
 
 bool InputProcessor::process(std::vector<event_t>& events,
diff --git a/src/powermap.cc b/src/powermap.cc
index a400cf9..6ffb74f 100644
--- a/src/powermap.cc
+++ b/src/powermap.cc
@@ -85,7 +85,8 @@ void Powermap::reset()
 	fixed[0] = {0., 0.};
 	fixed[1] = {.5, .5};
 	fixed[2] = {1., 1.};
-	shelf = false;
+	// FIXME: better false?
+	shelf = true;
 
 	updateSpline();
 }
diff --git a/src/powermapfilter.cc b/src/powermapfilter.cc
new file mode 100644
index 0000000..da88482
--- /dev/null
+++ b/src/powermapfilter.cc
@@ -0,0 +1,52 @@
+/* -*- Mode: c++ -*- */
+/***************************************************************************
+ *            powermapfilter.cc
+ *
+ *  Mon Apr 20 23:28:12 CEST 2020
+ *  Copyright 2020 André Nusser
+ *  andre.nusser@googlemail.com
+ ****************************************************************************/
+
+/*
+ *  This file is part of DrumGizmo.
+ *
+ *  DrumGizmo is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser 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.
+ */
+#include "powermapfilter.h"
+
+#include "settings.h"
+
+PowermapFilter::PowermapFilter(Settings& settings)
+	: settings(settings)
+{
+}
+
+bool PowermapFilter::filter(event_t& event, size_t pos)
+{
+	// the position is irrelevant for this filter
+	(void) pos;
+
+	if (settings.enable_powermap.load())
+	{
+		powermap.setFixed0({settings.fixed0_x.load(), settings.fixed0_y.load()});
+		powermap.setFixed1({settings.fixed1_x.load(), settings.fixed1_y.load()});
+		powermap.setFixed2({settings.fixed2_x.load(), settings.fixed2_y.load()});
+		powermap.setShelf(settings.shelf.load());
+
+		event.velocity = powermap.map(event.velocity);
+	}
+
+	return true;
+}
diff --git a/src/powermapfilter.h b/src/powermapfilter.h
new file mode 100644
index 0000000..263f809
--- /dev/null
+++ b/src/powermapfilter.h
@@ -0,0 +1,47 @@
+/* -*- Mode: c++ -*- */
+/***************************************************************************
+ *            powermapfilter.h
+ *
+ *  Mon Apr 20 23:28:12 CEST 2020
+ *  Copyright 2020 André Nusser
+ *  andre.nusser@googlemail.com
+ ****************************************************************************/
+
+/*
+ *  This file is part of DrumGizmo.
+ *
+ *  DrumGizmo is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser 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 "inputfilter.h"
+#include "powermap.h"
+
+struct Settings;
+
+class PowermapFilter
+	: public InputFilter
+{
+public:
+	PowermapFilter(Settings& settings);
+
+	bool filter(event_t& event, std::size_t pos) override;
+
+	// Note getLatency not overloaded because this filter doesn't add latency.
+
+private:
+	Settings& settings;
+	Powermap powermap;
+};
diff --git a/src/settings.h b/src/settings.h
index 9fa3896..4755bb2 100644
--- a/src/settings.h
+++ b/src/settings.h
@@ -144,6 +144,16 @@ struct Settings
 	// Current latency offset in ms - for UI
 	Atomic<float> latency_current{0};
 
+	// Powermap parameters
+	Atomic<bool> enable_powermap;
+	Atomic<float> fixed0_x{0.};
+	Atomic<float> fixed0_y{0.};
+	Atomic<float> fixed1_x{.5};
+	Atomic<float> fixed1_y{.5};
+	Atomic<float> fixed2_x{1.};
+	Atomic<float> fixed2_y{1.};
+	Atomic<bool> shelf{true};
+
 	Atomic<std::size_t> audition_counter{0};
 	Atomic<std::string> audition_instrument;
 	Atomic<float> audition_velocity;
@@ -209,6 +219,15 @@ struct SettingsGetter
 	SettingRef<float> latency_regain;
 	SettingRef<float> latency_current;
 
+	SettingRef<bool> enable_powermap;
+	SettingRef<float> fixed0_x;
+	SettingRef<float> fixed0_y;
+	SettingRef<float> fixed1_x;
+	SettingRef<float> fixed1_y;
+	SettingRef<float> fixed2_x;
+	SettingRef<float> fixed2_y;
+	SettingRef<bool> shelf;
+
 	SettingRef<std::size_t> audition_counter;
 	SettingRef<std::string> audition_instrument;
 	SettingRef<float> audition_velocity;
@@ -257,6 +276,14 @@ struct SettingsGetter
 		, latency_stddev{settings.latency_stddev}
 		, latency_regain{settings.latency_regain}
 		, latency_current{settings.latency_current}
+		, enable_powermap{settings.enable_powermap}
+		, fixed0_x{settings.fixed0_x}
+		, fixed0_y{settings.fixed0_y}
+		, fixed1_x{settings.fixed1_x}
+		, fixed1_y{settings.fixed1_y}
+		, fixed2_x{settings.fixed2_x}
+		, fixed2_y{settings.fixed2_y}
+		, shelf{settings.shelf}
 		, audition_counter{settings.audition_counter}
 		, audition_instrument{settings.audition_instrument}
 		, audition_velocity{settings.audition_velocity}
@@ -321,6 +348,15 @@ public:
 	Notifier<float> latency_regain;
 	Notifier<float> latency_current;
 
+	Notifier<bool> enable_powermap;
+	Notifier<float> fixed0_x;
+	Notifier<float> fixed0_y;
+	Notifier<float> fixed1_x;
+	Notifier<float> fixed1_y;
+	Notifier<float> fixed2_x;
+	Notifier<float> fixed2_y;
+	Notifier<bool> shelf;
+
 	Notifier<std::size_t> audition_counter;
 	Notifier<std::string> audition_instrument;
 	Notifier<int> audition_velocity;
@@ -383,6 +419,15 @@ public:
 		EVAL(latency_regain);
 		EVAL(latency_current);
 
+		EVAL(enable_powermap);
+		EVAL(fixed0_x);
+		EVAL(fixed0_y);
+		EVAL(fixed1_x);
+		EVAL(fixed1_y);
+		EVAL(fixed2_x);
+		EVAL(fixed2_y);
+		EVAL(shelf);
+
 		EVAL(audition_counter);
 		EVAL(audition_instrument);
 		EVAL(audition_velocity);