update external headers

ios/include/tests/test_camutils.cpp

@@ -0,0 +1,85 @@
+/*
+ * Copyright 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <camutils/Bookmark.h>
+#include <camutils/Manipulator.h>
+
+#include <gtest/gtest.h>
+
+using namespace filament::math;
+
+namespace camutils = filament::camutils;
+
+using CamManipulator = camutils::Manipulator<float>;
+
+class CamUtilsTest : public testing::Test {};
+
+#define EXPECT_VEC_EQ(a, x, y, z) expectVecEq(a, {x, y, z}, __LINE__)
+
+static void expectVecEq(float3 a, float3 b, int line) {
+    EXPECT_FLOAT_EQ(a.x, b.x);
+    EXPECT_FLOAT_EQ(a.y, b.y);
+    EXPECT_FLOAT_EQ(a.z, b.z);
+}
+
+TEST_F(CamUtilsTest, Orbit) {
+
+    float3 eye, targetPosition, up;
+
+    CamManipulator* orbit = CamManipulator::Builder()
+        .viewport(256, 256)
+        .targetPosition(0, 0, 0)
+        .upVector(0, 1, 0)
+        .zoomSpeed(0.01)
+        .orbitHomePosition(0, 0, 4)
+        .orbitSpeed(1, 1)
+        .build(camutils::Mode::ORBIT);
+
+    orbit->getLookAt(&eye, &targetPosition, &up);
+    EXPECT_VEC_EQ(eye, 0, 0, 4);
+    EXPECT_VEC_EQ(targetPosition, 0, 0, 0);
+    EXPECT_VEC_EQ(up, 0, 1, 0);
+
+    orbit->grabBegin(100, 100, false);
+    orbit->grabUpdate(200, 100);
+    orbit->grabEnd();
+
+    orbit->getLookAt(&eye, &targetPosition, &up);
+    EXPECT_VEC_EQ(eye, 2.0254626, 0, 3.4492755);
+    EXPECT_VEC_EQ(targetPosition, 1.519097, 0, 2.5869565);
+    EXPECT_VEC_EQ(up, 0, 1, 0);
+
+    delete orbit;
+}
+
+TEST_F(CamUtilsTest, Map) {
+
+    float3 eye, targetPosition, up;
+
+    CamManipulator* map = CamManipulator::Builder()
+        .viewport(256, 256)
+        .targetPosition(0, 0, 0)
+        .zoomSpeed(0.01)
+        .orbitHomePosition(0, 0, 4)
+        .build(camutils::Mode::MAP);
+
+    delete map;
+}
+
+int main(int argc, char** argv) {
+    ::testing::InitGoogleTest(&argc, argv);
+    return RUN_ALL_TESTS();
+}