services/surfaceflinger/tests/DisplayConfigs_test.cpp

/*
 * Copyright (C) 2019 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.
 */

// TODO(b/129481165): remove the #pragma below and fix conversion issues
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wextra"

#include <gtest/gtest.h>
#include <gui/ISurfaceComposer.h>
#include <gui/SurfaceComposerClient.h>
#include <private/gui/ComposerService.h>
#include <ui/DisplayMode.h>
#include <ui/DynamicDisplayInfo.h>
#include <utils/Errors.h>
#include <utils/Vector.h>

#include "utils/TransactionUtils.h"

namespace android {

::testing::Environment* const binderEnv =
        ::testing::AddGlobalTestEnvironment(new BinderEnvironment());

/**
 * Test class for setting display configs and passing around refresh rate ranges.
 */
class RefreshRateRangeTest : public ::testing::Test {
private:
    gui::DisplayModeSpecs mSpecs;

protected:
    void SetUp() override {
        const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
        ASSERT_FALSE(ids.empty());
        mDisplayToken = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
        status_t res = SurfaceComposerClient::getDesiredDisplayModeSpecs(mDisplayToken, &mSpecs);
        ASSERT_EQ(res, NO_ERROR);
    }

    void TearDown() override {
        status_t res = SurfaceComposerClient::setDesiredDisplayModeSpecs(mDisplayToken, mSpecs);
        ASSERT_EQ(res, NO_ERROR);
    }

    void testSetAllowGroupSwitching(bool allowGroupSwitching);

    sp<IBinder> mDisplayToken;
};

TEST_F(RefreshRateRangeTest, setAllConfigs) {
    ui::DynamicDisplayInfo info;
    status_t res = SurfaceComposerClient::getDynamicDisplayInfo(mDisplayToken, &info);
    const auto& modes = info.supportedDisplayModes;
    ASSERT_EQ(res, NO_ERROR);
    ASSERT_GT(modes.size(), 0);

    gui::DisplayModeSpecs setSpecs;
    setSpecs.allowGroupSwitching = false;
    for (size_t i = 0; i < modes.size(); i++) {
        setSpecs.defaultMode = modes[i].id;
        setSpecs.primaryRanges.physical.min = modes[i].refreshRate;
        setSpecs.primaryRanges.physical.max = modes[i].refreshRate;
        setSpecs.primaryRanges.render = setSpecs.primaryRanges.physical;
        setSpecs.appRequestRanges = setSpecs.primaryRanges;
        res = SurfaceComposerClient::setDesiredDisplayModeSpecs(mDisplayToken, setSpecs);
        ASSERT_EQ(res, NO_ERROR);

        gui::DisplayModeSpecs getSpecs;
        res = SurfaceComposerClient::getDesiredDisplayModeSpecs(mDisplayToken, &getSpecs);
        ASSERT_EQ(res, NO_ERROR);
        ASSERT_EQ(setSpecs, getSpecs);
    }
}

void RefreshRateRangeTest::testSetAllowGroupSwitching(bool allowGroupSwitching) {
    gui::DisplayModeSpecs setSpecs;
    setSpecs.defaultMode = 0;
    setSpecs.allowGroupSwitching = allowGroupSwitching;
    setSpecs.primaryRanges.physical.min = 0;
    setSpecs.primaryRanges.physical.max = 90;
    setSpecs.primaryRanges.render = setSpecs.primaryRanges.physical;
    setSpecs.appRequestRanges = setSpecs.primaryRanges;

    status_t res = SurfaceComposerClient::setDesiredDisplayModeSpecs(mDisplayToken, setSpecs);
    ASSERT_EQ(res, NO_ERROR);
    gui::DisplayModeSpecs getSpecs;
    res = SurfaceComposerClient::getDesiredDisplayModeSpecs(mDisplayToken, &getSpecs);
    ASSERT_EQ(res, NO_ERROR);
    ASSERT_EQ(setSpecs, getSpecs);
}

TEST_F(RefreshRateRangeTest, setAllowGroupSwitching) {
    testSetAllowGroupSwitching(true);
    testSetAllowGroupSwitching(false);
    testSetAllowGroupSwitching(true);
}

} // namespace android

// TODO(b/129481165): remove the #pragma below and fix conversion issues
#pragma clang diagnostic pop // ignored "-Wextra"