Files
filament/libs/camutils/tests/test_camutils.cpp
Philip Rideout 2854c0627d camutils: add support for Builder pattern.
This makes the upcoming Java bindings simpler and improves parity with
existing API conventions.

Note that camutils does not depend on filament and therefore cannot use
BuilderBase.

Note that the Manipulator Builder state is public which breaks with
convention but makes implementation simple and allows C++ clients to
continue using modern initializer syntax if they wish.
2020-01-14 15:26:22 -08:00

86 lines
2.3 KiB
C++

/*
* 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();
}