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/*
* Copyright 2021 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.
*/
#undef LOG_TAG
#define LOG_TAG "LibSurfaceFlingerUnittests"
#include "DisplayTransactionTestHelpers.h"
#include <ftl/fake_guard.h>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
namespace android {
namespace {
using hal::RenderIntent;
using FakeDisplayDeviceInjector = TestableSurfaceFlinger::FakeDisplayDeviceInjector;
class SetDisplayBrightnessTest : public DisplayTransactionTest {
public:
sp<DisplayDevice> getDisplayDevice() { return injectDefaultInternalDisplay({}); }
};
TEST_F(SetDisplayBrightnessTest, persistDisplayBrightnessNoComposite) {
ftl::FakeGuard guard(kMainThreadContext);
sp<DisplayDevice> displayDevice = getDisplayDevice();
EXPECT_EQ(std::nullopt, displayDevice->getStagedBrightness());
constexpr float kDisplayBrightness = 0.5f;
displayDevice->stageBrightness(kDisplayBrightness);
EXPECT_EQ(0.5f, displayDevice->getStagedBrightness());
displayDevice->persistBrightness(false);
EXPECT_EQ(std::nullopt, displayDevice->getStagedBrightness());
EXPECT_EQ(std::nullopt, displayDevice->getCompositionDisplay()->getState().displayBrightness);
}
TEST_F(SetDisplayBrightnessTest, persistDisplayBrightnessWithComposite) {
ftl::FakeGuard guard(kMainThreadContext);
sp<DisplayDevice> displayDevice = getDisplayDevice();
EXPECT_EQ(std::nullopt, displayDevice->getStagedBrightness());
constexpr float kDisplayBrightness = 0.5f;
displayDevice->stageBrightness(kDisplayBrightness);
EXPECT_EQ(0.5f, displayDevice->getStagedBrightness());
displayDevice->persistBrightness(true);
EXPECT_EQ(std::nullopt, displayDevice->getStagedBrightness());
EXPECT_EQ(kDisplayBrightness,
displayDevice->getCompositionDisplay()->getState().displayBrightness);
}
TEST_F(SetDisplayBrightnessTest, persistDisplayBrightnessWithCompositeShortCircuitsOnNoOp) {
ftl::FakeGuard guard(kMainThreadContext);
sp<DisplayDevice> displayDevice = getDisplayDevice();
EXPECT_EQ(std::nullopt, displayDevice->getStagedBrightness());
constexpr float kDisplayBrightness = 0.5f;
displayDevice->stageBrightness(kDisplayBrightness);
EXPECT_EQ(0.5f, displayDevice->getStagedBrightness());
displayDevice->persistBrightness(true);
EXPECT_EQ(std::nullopt, displayDevice->getStagedBrightness());
EXPECT_EQ(kDisplayBrightness,
displayDevice->getCompositionDisplay()->getState().displayBrightness);
displayDevice->getCompositionDisplay()->editState().displayBrightness = std::nullopt;
displayDevice->stageBrightness(kDisplayBrightness);
EXPECT_EQ(0.5f, displayDevice->getStagedBrightness());
displayDevice->persistBrightness(true);
EXPECT_EQ(std::nullopt, displayDevice->getStagedBrightness());
EXPECT_EQ(std::nullopt, displayDevice->getCompositionDisplay()->getState().displayBrightness);
}
TEST_F(SetDisplayBrightnessTest, firstDisplayBrightnessWithComposite) {
ftl::FakeGuard guard(kMainThreadContext);
sp<DisplayDevice> displayDevice = getDisplayDevice();
EXPECT_EQ(std::nullopt, displayDevice->getStagedBrightness());
constexpr float kDisplayBrightness = -1.0f;
displayDevice->stageBrightness(kDisplayBrightness);
EXPECT_EQ(-1.0f, displayDevice->getStagedBrightness());
displayDevice->persistBrightness(true);
EXPECT_EQ(std::nullopt, displayDevice->getStagedBrightness());
EXPECT_EQ(kDisplayBrightness,
displayDevice->getCompositionDisplay()->getState().displayBrightness);
}
} // namespace
} // namespace android
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