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kwin/autotests/drm/drmTest.cpp
Xaver Hugl e7c803b7e5 backends/drm: store drm properties directly in drm objects 
This makes it possible to ensure type safety for enums, as each drm property
object can have its own type now, and it reduces the amount of typing needed
to access properties
2023-04-23 14:09:29 +02:00

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/*
KWin - the KDE window manager
This file is part of the KDE project.
SPDX-FileCopyrightText: 2022 Xaver Hugl <xaver.hugl@gmail.com>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include <QSize>
#include <QtTest>
#include "mock_drm.h"
#include "core/session.h"
#include "drm_backend.h"
#include "drm_connector.h"
#include "drm_crtc.h"
#include "drm_dumb_buffer.h"
#include "drm_egl_backend.h"
#include "drm_gpu.h"
#include "drm_output.h"
#include "drm_pipeline.h"
#include "drm_plane.h"
#include "drm_pointer.h"
#include "platformsupport/scenes/qpainter/qpainterbackend.h"
#include <drm_fourcc.h>
using namespace KWin;
class DrmTest : public QObject
{
Q_OBJECT
private Q_SLOTS:
void testAmsDetection();
void testOutputDetection();
void testZeroModesHandling();
void testModeGeneration_data();
void testModeGeneration();
void testConnectorLifetime();
};
static void verifyCleanup(MockGpu *mockGpu)
{
QVERIFY(mockGpu->drmConnectors.isEmpty());
QVERIFY(mockGpu->drmEncoders.isEmpty());
QVERIFY(mockGpu->drmCrtcs.isEmpty());
QVERIFY(mockGpu->drmPlanes.isEmpty());
QVERIFY(mockGpu->drmPlaneRes.isEmpty());
QVERIFY(mockGpu->fbs.isEmpty());
QVERIFY(mockGpu->drmProps.isEmpty());
QVERIFY(mockGpu->drmObjectProperties.isEmpty());
QVERIFY(mockGpu->drmPropertyBlobs.isEmpty());
}
void DrmTest::testAmsDetection()
{
const auto mockGpu = std::make_unique<MockGpu>(1, 0);
const auto session = Session::create(Session::Type::Noop);
const auto backend = std::make_unique<DrmBackend>(session.get());
// gpu without planes should use legacy mode
auto gpu = std::make_unique<DrmGpu>(backend.get(), "legacy", 1, 0);
QVERIFY(!gpu->atomicModeSetting());
// gpu with planes should use AMS
mockGpu->planes << std::make_shared<MockPlane>(mockGpu.get(), PlaneType::Primary, 0);
gpu = std::make_unique<DrmGpu>(backend.get(), "AMS", 1, 0);
QVERIFY(gpu->atomicModeSetting());
// but not if the kernel doesn't allow it
mockGpu->deviceCaps[MOCKDRM_DEVICE_CAP_ATOMIC] = 0;
gpu = std::make_unique<DrmGpu>(backend.get(), "legacy 2", 1, 0);
QVERIFY(!gpu->atomicModeSetting());
gpu.reset();
verifyCleanup(mockGpu.get());
}
void DrmTest::testOutputDetection()
{
const auto mockGpu = std::make_unique<MockGpu>(1, 5);
const auto one = std::make_shared<MockConnector>(mockGpu.get());
const auto two = std::make_shared<MockConnector>(mockGpu.get());
const auto vr = std::make_shared<MockConnector>(mockGpu.get(), true);
mockGpu->connectors.push_back(one);
mockGpu->connectors.push_back(two);
mockGpu->connectors.push_back(vr);
const auto session = Session::create(Session::Type::Noop);
const auto backend = std::make_unique<DrmBackend>(session.get());
const auto renderBackend = backend->createQPainterBackend();
auto gpu = std::make_unique<DrmGpu>(backend.get(), "test", 1, 0);
QVERIFY(gpu->updateOutputs());
// 3 outputs should be detected, one of them non-desktop
const auto outputs = gpu->drmOutputs();
QCOMPARE(outputs.size(), 3);
const auto vrOutput = std::find_if(outputs.begin(), outputs.end(), [](const auto &output) {
return output->isNonDesktop();
});
QVERIFY(vrOutput != outputs.end());
QVERIFY(static_cast<DrmOutput *>(*vrOutput)->connector()->id() == vr->id);
// test hotunplugging
mockGpu->connectors.removeOne(one);
QVERIFY(gpu->updateOutputs());
QCOMPARE(gpu->drmOutputs().size(), 2);
// test hotplugging
mockGpu->connectors.push_back(one);
QVERIFY(gpu->updateOutputs());
QCOMPARE(gpu->drmOutputs().size(), 3);
// connector state changing to disconnected should count as a hotunplug
one->connection = DRM_MODE_DISCONNECTED;
QVERIFY(gpu->updateOutputs());
QCOMPARE(gpu->drmOutputs().size(), 2);
// don't crash if all connectors are disconnected
two->connection = DRM_MODE_DISCONNECTED;
vr->connection = DRM_MODE_DISCONNECTED;
QVERIFY(gpu->updateOutputs());
QVERIFY(gpu->drmOutputs().empty());
gpu.reset();
verifyCleanup(mockGpu.get());
}
void DrmTest::testZeroModesHandling()
{
const auto mockGpu = std::make_unique<MockGpu>(1, 5);
const auto conn = std::make_shared<MockConnector>(mockGpu.get());
mockGpu->connectors.push_back(conn);
const auto session = Session::create(Session::Type::Noop);
const auto backend = std::make_unique<DrmBackend>(session.get());
const auto renderBackend = backend->createQPainterBackend();
auto gpu = std::make_unique<DrmGpu>(backend.get(), "test", 1, 0);
// connector with zero modes should be ignored
conn->modes.clear();
QVERIFY(gpu->updateOutputs());
QVERIFY(gpu->drmOutputs().empty());
// once it has modes, it should be detected
conn->addMode(1920, 1080, 60);
QVERIFY(gpu->updateOutputs());
QCOMPARE(gpu->drmOutputs().size(), 1);
// if an update says it has no modes anymore but it's still connected, ignore that
conn->modes.clear();
QVERIFY(gpu->updateOutputs());
QCOMPARE(gpu->drmOutputs().size(), 1);
QVERIFY(!gpu->drmOutputs().constFirst()->modes().empty());
gpu.reset();
verifyCleanup(mockGpu.get());
}
void DrmTest::testModeGeneration_data()
{
QTest::addColumn<QSize>("nativeMode");
QTest::addColumn<QVector<QSize>>("expectedModes");
QTest::newRow("2160p") << QSize(3840, 2160) << QVector<QSize>{
QSize(1600, 1200),
QSize(1280, 1024),
QSize(1024, 768),
QSize(2560, 1600),
QSize(1920, 1200),
QSize(1280, 800),
QSize(3840, 2160),
QSize(3200, 1800),
QSize(2880, 1620),
QSize(2560, 1440),
QSize(1920, 1080),
QSize(1600, 900),
QSize(1368, 768),
QSize(1280, 720),
};
QTest::newRow("1440p") << QSize(2560, 1440) << QVector<QSize>{
QSize(1600, 1200),
QSize(1280, 1024),
QSize(1024, 768),
QSize(1920, 1200),
QSize(1280, 800),
QSize(2560, 1440),
QSize(1920, 1080),
QSize(1600, 900),
QSize(1368, 768),
QSize(1280, 720),
};
QTest::newRow("1080p") << QSize(1920, 1080) << QVector<QSize>{
QSize(1280, 1024),
QSize(1024, 768),
QSize(1280, 800),
QSize(1920, 1080),
QSize(1600, 900),
QSize(1368, 768),
QSize(1280, 720),
};
QTest::newRow("2160p 21:9") << QSize(5120, 2160) << QVector<QSize>{
QSize(5120, 2160),
QSize(1600, 1200),
QSize(1280, 1024),
QSize(1024, 768),
QSize(2560, 1600),
QSize(1920, 1200),
QSize(1280, 800),
QSize(3840, 2160),
QSize(3200, 1800),
QSize(2880, 1620),
QSize(2560, 1440),
QSize(1920, 1080),
QSize(1600, 900),
QSize(1368, 768),
QSize(1280, 720),
};
QTest::newRow("1440p 21:9") << QSize(3440, 1440) << QVector<QSize>{
QSize(3440, 1440),
QSize(1600, 1200),
QSize(1280, 1024),
QSize(1024, 768),
QSize(1920, 1200),
QSize(1280, 800),
QSize(2560, 1440),
QSize(1920, 1080),
QSize(1600, 900),
QSize(1368, 768),
QSize(1280, 720),
};
QTest::newRow("1080p 21:9") << QSize(2560, 1080) << QVector<QSize>{
QSize(2560, 1080),
QSize(1280, 1024),
QSize(1024, 768),
QSize(1280, 800),
QSize(1920, 1080),
QSize(1600, 900),
QSize(1368, 768),
QSize(1280, 720),
};
}
void DrmTest::testModeGeneration()
{
const auto mockGpu = std::make_unique<MockGpu>(1, 5);
const auto conn = std::make_shared<MockConnector>(mockGpu.get());
mockGpu->connectors.push_back(conn);
const auto session = Session::create(Session::Type::Noop);
const auto backend = std::make_unique<DrmBackend>(session.get());
const auto renderBackend = backend->createQPainterBackend();
auto gpu = std::make_unique<DrmGpu>(backend.get(), "test", 1, 0);
QFETCH(QSize, nativeMode);
QFETCH(QVector<QSize>, expectedModes);
conn->modes.clear();
conn->addMode(nativeMode.width(), nativeMode.height(), 60);
QVERIFY(gpu->updateOutputs());
QCOMPARE(gpu->drmOutputs().size(), 1);
// no mode generation without the scaling property
QCOMPARE(gpu->drmOutputs().front()->modes().size(), 1);
mockGpu->connectors.removeAll(conn);
QVERIFY(gpu->updateOutputs());
conn->props.emplace_back(conn.get(), QStringLiteral("scaling mode"), 0, DRM_MODE_PROP_ENUM, QVector<QByteArray>{"None", "Full", "Center", "Full aspect"});
mockGpu->connectors.push_back(conn);
QVERIFY(gpu->updateOutputs());
DrmOutput *const output = gpu->drmOutputs().front();
QCOMPARE(output->modes().size(), expectedModes.size());
for (const auto &mode : output->modes()) {
QVERIFY(expectedModes.contains(mode->size()));
QVERIFY(mode->size().width() <= nativeMode.width());
QVERIFY(mode->size().height() <= nativeMode.height());
QVERIFY(mode->refreshRate() <= 60000);
}
gpu.reset();
verifyCleanup(mockGpu.get());
}
void DrmTest::testConnectorLifetime()
{
// don't crash if output lifetime is extended beyond the connector
const auto mockGpu = std::make_unique<MockGpu>(1, 5);
const auto conn = std::make_shared<MockConnector>(mockGpu.get());
mockGpu->connectors.push_back(conn);
const auto session = Session::create(Session::Type::Noop);
const auto backend = std::make_unique<DrmBackend>(session.get());
const auto renderBackend = backend->createQPainterBackend();
auto gpu = std::make_unique<DrmGpu>(backend.get(), "test", 1, 0);
QVERIFY(gpu->updateOutputs());
QCOMPARE(gpu->drmOutputs().size(), 1);
DrmOutput *const output = gpu->drmOutputs().front();
output->ref();
mockGpu->connectors.clear();
QVERIFY(gpu->updateOutputs());
output->unref();
gpu.reset();
verifyCleanup(mockGpu.get());
}
QTEST_GUILESS_MAIN(DrmTest)
#include "drmTest.moc"
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