Support curve maps in midi map file

1 files changed, 237 insertions, 0 deletions

diff --git a/test/curvemaptest.cc b/test/curvemaptest.cc
new file mode 100644
index 0000000..8bbfa10
--- /dev/null
+++ b/test/curvemaptest.cc
@@ -0,0 +1,237 @@
+/* -*- Mode: c++ -*- */
+/***************************************************************************
+ *            curvemaptest.cc
+ *
+ *  Sun Apr 19 23:23:37 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 <uunit.h>
+#include <map>
+
+#include "../src/curvemap.h"
+#include <iostream>
+#include <iomanip>
+
+class test_curvemaptest
+	: public uUnit
+{
+public:
+	test_curvemaptest()
+	{
+		uUNIT_TEST(test_curvemaptest::check_default);
+		uUNIT_TEST(test_curvemaptest::check_default_invert);
+		uUNIT_TEST(test_curvemaptest::check_default_disabled_shelf);
+		uUNIT_TEST(test_curvemaptest::check_default_disabled_shelf_invert);
+		uUNIT_TEST(test_curvemaptest::check_fixed1_075_025);
+		uUNIT_TEST(test_curvemaptest::check_fixed1_075_025_invert);
+		uUNIT_TEST(test_curvemaptest::check_shelf_060);
+		uUNIT_TEST(test_curvemaptest::check_shelf_060_invert);
+		// uUNIT_TEST(test_curvemaptest::check_fixed0_075_025_invert);
+	}
+
+	static constexpr auto eps = CurveMapTestAccessor::eps;
+
+	const std::map<double, double> default_map = {
+		{0.0, eps},
+		{eps, eps},
+		{0.1, 0.1},
+		{0.2, 0.2},
+		{0.3, 0.3},
+		{0.4, 0.4},
+		{0.5, 0.5},
+		{0.6, 0.6},
+		{0.7, 0.7},
+		{0.8, 0.8},
+		{0.9, 0.9},
+		{1.0 - eps, 1.0 - eps},
+		{1.0, 1.0 - eps}
+	};
+
+	const std::map<double, double> identity_map = {
+		{0.0, 0.0},
+		{0.1, 0.1},
+		{0.2, 0.2},
+		{0.3, 0.3},
+		{0.4, 0.4},
+		{0.5, 0.5},
+		{0.6, 0.6},
+		{0.7, 0.7},
+		{0.8, 0.8},
+		{0.9, 0.9},
+		{1.0, 1.0}
+	};
+
+	const std::map<double, double> fixed1_075_025_map = {
+		{0.0, eps},
+		{eps, eps},
+		{0, 0.0001},
+		{0.1, 0.0295469705015421},
+		{0.2, 0.0536915548145771},
+		{0.3, 0.0760560110211372},
+		{0.4, 0.100195862352848},
+		{0.5, 0.129666686058044},
+		{0.6, 0.168024003505707},
+		{0.7, 0.218823373317719},
+		{0.8, 0.325357049703598},
+		{0.9, 0.64416378736496},
+		{1.0 - eps, 1.0 - eps},
+		{1.0, 1.0 - eps}
+	};
+
+	const std::map<double, double> shelf_060_map = {
+		{0.0, eps},
+		{eps, eps},
+		{0.1, 0.1},
+		{0.2, 0.2},
+		{0.3, 0.3},
+		{0.4, 0.4},
+		{0.5, 0.5},
+		{0.6, 0.6},
+		{0.7, 0.6},
+		{0.8, 0.6},
+		{0.9, 0.6},
+		{1.0, 0.6}
+	};
+
+	void check_default()
+	{
+		auto dataset = this->default_map;
+
+		CurveMap map;
+
+		for (auto& entry : dataset) {
+			auto in = entry.first;
+			auto expect = entry.second;
+			uASSERT_EQUAL(expect, map.map(in));
+		}
+	}
+
+	void check_default_invert()
+	{
+		auto dataset = this->default_map;
+
+		CurveMap map;
+		map.setInvert(true);
+		
+		for (auto& entry : dataset) {
+			auto in = 1.0 - entry.first;
+			auto expect = entry.second;
+			uASSERT_EQUAL(expect, map.map(in));
+		}
+	}
+
+	void check_default_disabled_shelf()
+	{
+		auto dataset = this->identity_map;
+
+		CurveMap map;
+		map.setShelf(false);
+		map.setFixed2({0.6, 0.6});
+
+		for (auto& entry : dataset) {
+			auto in = entry.first;
+			auto expect = entry.second;
+			// std::cout << "{" << in << ", " << std::setprecision (15) << map.map(in) << "}," << std::endl; // FIXME
+			uASSERT_EQUAL(expect, map.map(in));
+		}
+	}
+
+	void check_default_disabled_shelf_invert()
+	{
+		auto dataset = this->identity_map;
+
+		CurveMap map;
+		map.setShelf(false);
+		map.setFixed2({0.6, 0.6});
+		map.setInvert(true);
+
+		for (auto& entry : dataset) {
+			auto in = 1.0 - entry.first;
+			auto expect = entry.second;
+			uASSERT_EQUAL(expect, map.map(in));
+		}
+	}
+
+	void check_fixed1_075_025()
+	{
+		auto dataset = this->fixed1_075_025_map;
+
+		CurveMap map;
+		map.setFixed1({0.75, 0.25});
+
+		for (auto& entry : dataset) {
+			auto in = entry.first;
+			auto expect = entry.second;
+			// std::cout << "{" << in << ", " << std::setprecision (15) << map.map(in) << "}," << std::endl; // FIXME
+			uASSERT_EQUAL(expect, map.map(in));
+		}
+	}
+
+	void check_fixed1_075_025_invert()
+	{
+		auto dataset = this->fixed1_075_025_map;
+
+		CurveMap map;
+		map.setFixed1({0.75, 0.25});
+		map.setInvert(true);
+
+		for (auto& entry : dataset) {
+			auto in = 1.0 - entry.first;
+			auto expect = entry.second;
+			uASSERT_EQUAL(expect, map.map(in));
+		}
+	}
+
+	void check_shelf_060()
+	{
+		auto dataset = this->shelf_060_map;
+
+		CurveMap map;
+		map.setFixed2({0.6, 0.6});
+		map.setShelf(true);
+
+		for (auto& entry : dataset) {
+			auto in = entry.first;
+			auto expect = entry.second;
+			uASSERT_EQUAL(expect, map.map(in));
+		}
+	}
+
+	void check_shelf_060_invert()
+	{
+		auto dataset = this->shelf_060_map;
+
+		CurveMap map;
+		map.setFixed2({0.6, 0.6});
+		map.setShelf(true);
+		map.setInvert(true);
+
+		for (auto& entry : dataset) {
+			auto in = 1.0 - entry.first;
+			auto expect = entry.second;
+			uASSERT_EQUAL(expect, map.map(in));
+		}
+	}
+};
+
+// Registers the fixture into the 'registry'
+static test_curvemaptest test;