1 /*
2  * Copyright (C) 2018 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #undef LOG_TAG
18 #define LOG_TAG "LibSurfaceFlingerUnittests"
19 
20 #include <type_traits>
21 
22 #include <compositionengine/Display.h>
23 #include <compositionengine/DisplayColorProfile.h>
24 #include <compositionengine/mock/DisplaySurface.h>
25 #include <gmock/gmock.h>
26 #include <gtest/gtest.h>
27 #include <log/log.h>
28 #include <renderengine/mock/RenderEngine.h>
29 #include <ui/DebugUtils.h>
30 
31 #include "DisplayIdentificationTest.h"
32 #include "Scheduler/RefreshRateConfigs.h"
33 #include "TestableScheduler.h"
34 #include "TestableSurfaceFlinger.h"
35 #include "mock/DisplayHardware/MockComposer.h"
36 #include "mock/MockDispSync.h"
37 #include "mock/MockEventControlThread.h"
38 #include "mock/MockEventThread.h"
39 #include "mock/MockMessageQueue.h"
40 #include "mock/MockNativeWindowSurface.h"
41 #include "mock/MockSurfaceInterceptor.h"
42 #include "mock/gui/MockGraphicBufferConsumer.h"
43 #include "mock/gui/MockGraphicBufferProducer.h"
44 #include "mock/system/window/MockNativeWindow.h"
45 
46 namespace android {
47 namespace {
48 
49 using testing::_;
50 using testing::DoAll;
51 using testing::Mock;
52 using testing::ResultOf;
53 using testing::Return;
54 using testing::SetArgPointee;
55 
56 using android::Hwc2::ColorMode;
57 using android::Hwc2::Error;
58 using android::Hwc2::Hdr;
59 using android::Hwc2::IComposer;
60 using android::Hwc2::IComposerClient;
61 using android::Hwc2::PerFrameMetadataKey;
62 using android::Hwc2::RenderIntent;
63 
64 using FakeDisplayDeviceInjector = TestableSurfaceFlinger::FakeDisplayDeviceInjector;
65 using FakeHwcDisplayInjector = TestableSurfaceFlinger::FakeHwcDisplayInjector;
66 using HotplugEvent = TestableSurfaceFlinger::HotplugEvent;
67 using HWC2Display = TestableSurfaceFlinger::HWC2Display;
68 
69 constexpr int32_t DEFAULT_REFRESH_RATE = 16'666'666;
70 constexpr int32_t DEFAULT_DPI = 320;
71 constexpr int DEFAULT_VIRTUAL_DISPLAY_SURFACE_FORMAT = HAL_PIXEL_FORMAT_RGB_565;
72 
73 constexpr int HWC_POWER_MODE_LEET = 1337; // An out of range power mode value
74 
75 /* ------------------------------------------------------------------------
76  * Boolean avoidance
77  *
78  * To make calls and template instantiations more readable, we define some
79  * local enums along with an implicit bool conversion.
80  */
81 
82 #define BOOL_SUBSTITUTE(TYPENAME) enum class TYPENAME : bool { FALSE = false, TRUE = true };
83 
84 BOOL_SUBSTITUTE(Async);
85 BOOL_SUBSTITUTE(Critical);
86 BOOL_SUBSTITUTE(Primary);
87 BOOL_SUBSTITUTE(Secure);
88 BOOL_SUBSTITUTE(Virtual);
89 
90 /* ------------------------------------------------------------------------
91  *
92  */
93 
94 class DisplayTransactionTest : public testing::Test {
95 public:
96     DisplayTransactionTest();
97     ~DisplayTransactionTest() override;
98 
99     void setupScheduler();
100 
101     // --------------------------------------------------------------------
102     // Mock/Fake injection
103 
104     void injectMockComposer(int virtualDisplayCount);
105     void injectFakeBufferQueueFactory();
106     void injectFakeNativeWindowSurfaceFactory();
107 
108     // --------------------------------------------------------------------
109     // Postcondition helpers
110 
111     bool hasPhysicalHwcDisplay(hwc2_display_t hwcDisplayId);
112     bool hasTransactionFlagSet(int flag);
113     bool hasDisplayDevice(sp<IBinder> displayToken);
114     sp<DisplayDevice> getDisplayDevice(sp<IBinder> displayToken);
115     bool hasCurrentDisplayState(sp<IBinder> displayToken);
116     const DisplayDeviceState& getCurrentDisplayState(sp<IBinder> displayToken);
117     bool hasDrawingDisplayState(sp<IBinder> displayToken);
118     const DisplayDeviceState& getDrawingDisplayState(sp<IBinder> displayToken);
119 
120     // --------------------------------------------------------------------
121     // Test instances
122 
123     TestableScheduler* mScheduler;
124     TestableSurfaceFlinger mFlinger;
125     mock::EventThread* mEventThread = new mock::EventThread();
126     mock::EventThread* mSFEventThread = new mock::EventThread();
127     mock::EventControlThread* mEventControlThread = new mock::EventControlThread();
128     sp<mock::NativeWindow> mNativeWindow = new mock::NativeWindow();
129     sp<GraphicBuffer> mBuffer = new GraphicBuffer();
130 
131     // These mocks are created by the test, but are destroyed by SurfaceFlinger
132     // by virtue of being stored into a std::unique_ptr. However we still need
133     // to keep a reference to them for use in setting up call expectations.
134     renderengine::mock::RenderEngine* mRenderEngine = new renderengine::mock::RenderEngine();
135     Hwc2::mock::Composer* mComposer = nullptr;
136     mock::MessageQueue* mMessageQueue = new mock::MessageQueue();
137     mock::SurfaceInterceptor* mSurfaceInterceptor = new mock::SurfaceInterceptor();
138     mock::DispSync* mPrimaryDispSync = new mock::DispSync();
139 
140     // These mocks are created only when expected to be created via a factory.
141     sp<mock::GraphicBufferConsumer> mConsumer;
142     sp<mock::GraphicBufferProducer> mProducer;
143     surfaceflinger::mock::NativeWindowSurface* mNativeWindowSurface = nullptr;
144 };
145 
DisplayTransactionTest()146 DisplayTransactionTest::DisplayTransactionTest() {
147     const ::testing::TestInfo* const test_info =
148             ::testing::UnitTest::GetInstance()->current_test_info();
149     ALOGD("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());
150 
151     // Default to no wide color display support configured
152     mFlinger.mutableHasWideColorDisplay() = false;
153     mFlinger.mutableUseColorManagement() = false;
154     mFlinger.mutableDisplayColorSetting() = DisplayColorSetting::UNMANAGED;
155 
156     // Default to using HWC virtual displays
157     mFlinger.mutableUseHwcVirtualDisplays() = true;
158 
159     mFlinger.setCreateBufferQueueFunction([](auto, auto, auto) {
160         ADD_FAILURE() << "Unexpected request to create a buffer queue.";
161     });
162 
163     mFlinger.setCreateNativeWindowSurface([](auto) {
164         ADD_FAILURE() << "Unexpected request to create a native window surface.";
165         return nullptr;
166     });
167 
168     setupScheduler();
169     mFlinger.mutableEventQueue().reset(mMessageQueue);
170     mFlinger.setupRenderEngine(std::unique_ptr<renderengine::RenderEngine>(mRenderEngine));
171     mFlinger.mutableInterceptor().reset(mSurfaceInterceptor);
172 
173     injectMockComposer(0);
174 }
175 
~DisplayTransactionTest()176 DisplayTransactionTest::~DisplayTransactionTest() {
177     const ::testing::TestInfo* const test_info =
178             ::testing::UnitTest::GetInstance()->current_test_info();
179     ALOGD("**** Tearing down after %s.%s\n", test_info->test_case_name(), test_info->name());
180 }
181 
setupScheduler()182 void DisplayTransactionTest::setupScheduler() {
183     std::vector<scheduler::RefreshRateConfigs::InputConfig> configs{{/*hwcId=*/0, 16666667}};
184     mFlinger.mutableRefreshRateConfigs() =
185             std::make_unique<scheduler::RefreshRateConfigs>(/*refreshRateSwitching=*/false, configs,
186                                                             /*currentConfig=*/0);
187     mFlinger.mutableRefreshRateStats() =
188             std::make_unique<scheduler::RefreshRateStats>(*mFlinger.mutableRefreshRateConfigs(),
189                                                           *mFlinger.mutableTimeStats(),
190                                                           /*currentConfig=*/0,
191                                                           /*powerMode=*/HWC_POWER_MODE_OFF);
192     mScheduler = new TestableScheduler(*mFlinger.mutableRefreshRateConfigs());
193     mScheduler->mutableEventControlThread().reset(mEventControlThread);
194     mScheduler->mutablePrimaryDispSync().reset(mPrimaryDispSync);
195     EXPECT_CALL(*mEventThread, registerDisplayEventConnection(_));
196     EXPECT_CALL(*mSFEventThread, registerDisplayEventConnection(_));
197 
198     sp<Scheduler::ConnectionHandle> sfConnectionHandle =
199             mScheduler->addConnection(std::unique_ptr<EventThread>(mSFEventThread));
200     mFlinger.mutableSfConnectionHandle() = std::move(sfConnectionHandle);
201     sp<Scheduler::ConnectionHandle> appConnectionHandle =
202             mScheduler->addConnection(std::unique_ptr<EventThread>(mEventThread));
203     mFlinger.mutableAppConnectionHandle() = std::move(appConnectionHandle);
204     mFlinger.mutableScheduler().reset(mScheduler);
205 }
206 
injectMockComposer(int virtualDisplayCount)207 void DisplayTransactionTest::injectMockComposer(int virtualDisplayCount) {
208     mComposer = new Hwc2::mock::Composer();
209     EXPECT_CALL(*mComposer, getCapabilities())
210             .WillOnce(Return(std::vector<IComposer::Capability>()));
211     EXPECT_CALL(*mComposer, getMaxVirtualDisplayCount()).WillOnce(Return(virtualDisplayCount));
212     mFlinger.setupComposer(std::unique_ptr<Hwc2::Composer>(mComposer));
213 
214     Mock::VerifyAndClear(mComposer);
215 }
216 
injectFakeBufferQueueFactory()217 void DisplayTransactionTest::injectFakeBufferQueueFactory() {
218     // This setup is only expected once per test.
219     ASSERT_TRUE(mConsumer == nullptr && mProducer == nullptr);
220 
221     mConsumer = new mock::GraphicBufferConsumer();
222     mProducer = new mock::GraphicBufferProducer();
223 
224     mFlinger.setCreateBufferQueueFunction([this](auto outProducer, auto outConsumer, bool) {
225         *outProducer = mProducer;
226         *outConsumer = mConsumer;
227     });
228 }
229 
injectFakeNativeWindowSurfaceFactory()230 void DisplayTransactionTest::injectFakeNativeWindowSurfaceFactory() {
231     // This setup is only expected once per test.
232     ASSERT_TRUE(mNativeWindowSurface == nullptr);
233 
234     mNativeWindowSurface = new surfaceflinger::mock::NativeWindowSurface();
235 
236     mFlinger.setCreateNativeWindowSurface([this](auto) {
237         return std::unique_ptr<surfaceflinger::NativeWindowSurface>(mNativeWindowSurface);
238     });
239 }
240 
hasPhysicalHwcDisplay(hwc2_display_t hwcDisplayId)241 bool DisplayTransactionTest::hasPhysicalHwcDisplay(hwc2_display_t hwcDisplayId) {
242     return mFlinger.mutableHwcPhysicalDisplayIdMap().count(hwcDisplayId) == 1;
243 }
244 
hasTransactionFlagSet(int flag)245 bool DisplayTransactionTest::hasTransactionFlagSet(int flag) {
246     return mFlinger.mutableTransactionFlags() & flag;
247 }
248 
hasDisplayDevice(sp<IBinder> displayToken)249 bool DisplayTransactionTest::hasDisplayDevice(sp<IBinder> displayToken) {
250     return mFlinger.mutableDisplays().count(displayToken) == 1;
251 }
252 
getDisplayDevice(sp<IBinder> displayToken)253 sp<DisplayDevice> DisplayTransactionTest::getDisplayDevice(sp<IBinder> displayToken) {
254     return mFlinger.mutableDisplays()[displayToken];
255 }
256 
hasCurrentDisplayState(sp<IBinder> displayToken)257 bool DisplayTransactionTest::hasCurrentDisplayState(sp<IBinder> displayToken) {
258     return mFlinger.mutableCurrentState().displays.indexOfKey(displayToken) >= 0;
259 }
260 
getCurrentDisplayState(sp<IBinder> displayToken)261 const DisplayDeviceState& DisplayTransactionTest::getCurrentDisplayState(sp<IBinder> displayToken) {
262     return mFlinger.mutableCurrentState().displays.valueFor(displayToken);
263 }
264 
hasDrawingDisplayState(sp<IBinder> displayToken)265 bool DisplayTransactionTest::hasDrawingDisplayState(sp<IBinder> displayToken) {
266     return mFlinger.mutableDrawingState().displays.indexOfKey(displayToken) >= 0;
267 }
268 
getDrawingDisplayState(sp<IBinder> displayToken)269 const DisplayDeviceState& DisplayTransactionTest::getDrawingDisplayState(sp<IBinder> displayToken) {
270     return mFlinger.mutableDrawingState().displays.valueFor(displayToken);
271 }
272 
273 /* ------------------------------------------------------------------------
274  *
275  */
276 
277 template <typename PhysicalDisplay>
278 struct PhysicalDisplayId {};
279 
280 template <DisplayId::Type displayId>
281 using VirtualDisplayId = std::integral_constant<DisplayId::Type, displayId>;
282 
283 struct NoDisplayId {};
284 
285 template <typename>
286 struct IsPhysicalDisplayId : std::bool_constant<false> {};
287 
288 template <typename PhysicalDisplay>
289 struct IsPhysicalDisplayId<PhysicalDisplayId<PhysicalDisplay>> : std::bool_constant<true> {};
290 
291 template <typename>
292 struct DisplayIdGetter;
293 
294 template <typename PhysicalDisplay>
295 struct DisplayIdGetter<PhysicalDisplayId<PhysicalDisplay>> {
getandroid::__anon968546880111::DisplayIdGetter296     static std::optional<DisplayId> get() {
297         if (!PhysicalDisplay::HAS_IDENTIFICATION_DATA) {
298             return getFallbackDisplayId(static_cast<bool>(PhysicalDisplay::PRIMARY)
299                                                 ? HWC_DISPLAY_PRIMARY
300                                                 : HWC_DISPLAY_EXTERNAL);
301         }
302 
303         const auto info =
304                 parseDisplayIdentificationData(PhysicalDisplay::PORT,
305                                                PhysicalDisplay::GET_IDENTIFICATION_DATA());
306         return info ? std::make_optional(info->id) : std::nullopt;
307     }
308 };
309 
310 template <DisplayId::Type displayId>
311 struct DisplayIdGetter<VirtualDisplayId<displayId>> {
getandroid::__anon968546880111::DisplayIdGetter312     static std::optional<DisplayId> get() { return DisplayId{displayId}; }
313 };
314 
315 template <>
316 struct DisplayIdGetter<NoDisplayId> {
getandroid::__anon968546880111::DisplayIdGetter317     static std::optional<DisplayId> get() { return {}; }
318 };
319 
320 // DisplayIdType can be:
321 //     1) PhysicalDisplayId<...> for generated ID of physical display backed by HWC.
322 //     2) VirtualDisplayId<...> for hard-coded ID of virtual display backed by HWC.
323 //     3) NoDisplayId for virtual display without HWC backing.
324 template <typename DisplayIdType, int width, int height, Critical critical, Async async,
325           Secure secure, Primary primary, int grallocUsage>
326 struct DisplayVariant {
327     using DISPLAY_ID = DisplayIdGetter<DisplayIdType>;
328 
329     // The display width and height
330     static constexpr int WIDTH = width;
331     static constexpr int HEIGHT = height;
332 
333     static constexpr int GRALLOC_USAGE = grallocUsage;
334 
335     // Whether the display is virtual or physical
336     static constexpr Virtual VIRTUAL =
337             IsPhysicalDisplayId<DisplayIdType>{} ? Virtual::FALSE : Virtual::TRUE;
338 
339     // When creating native window surfaces for the framebuffer, whether those should be critical
340     static constexpr Critical CRITICAL = critical;
341 
342     // When creating native window surfaces for the framebuffer, whether those should be async
343     static constexpr Async ASYNC = async;
344 
345     // Whether the display should be treated as secure
346     static constexpr Secure SECURE = secure;
347 
348     // Whether the display is primary
349     static constexpr Primary PRIMARY = primary;
350 
makeFakeExistingDisplayInjectorandroid::__anon968546880111::DisplayVariant351     static auto makeFakeExistingDisplayInjector(DisplayTransactionTest* test) {
352         auto injector =
353                 FakeDisplayDeviceInjector(test->mFlinger, DISPLAY_ID::get(),
354                                           static_cast<bool>(VIRTUAL), static_cast<bool>(PRIMARY));
355 
356         injector.setSecure(static_cast<bool>(SECURE));
357         injector.setNativeWindow(test->mNativeWindow);
358 
359         // Creating a DisplayDevice requires getting default dimensions from the
360         // native window along with some other initial setup.
361         EXPECT_CALL(*test->mNativeWindow, query(NATIVE_WINDOW_WIDTH, _))
362                 .WillRepeatedly(DoAll(SetArgPointee<1>(WIDTH), Return(0)));
363         EXPECT_CALL(*test->mNativeWindow, query(NATIVE_WINDOW_HEIGHT, _))
364                 .WillRepeatedly(DoAll(SetArgPointee<1>(HEIGHT), Return(0)));
365         EXPECT_CALL(*test->mNativeWindow, perform(NATIVE_WINDOW_SET_BUFFERS_FORMAT))
366                 .WillRepeatedly(Return(0));
367         EXPECT_CALL(*test->mNativeWindow, perform(NATIVE_WINDOW_API_CONNECT))
368                 .WillRepeatedly(Return(0));
369         EXPECT_CALL(*test->mNativeWindow, perform(NATIVE_WINDOW_SET_USAGE64))
370                 .WillRepeatedly(Return(0));
371         EXPECT_CALL(*test->mNativeWindow, perform(NATIVE_WINDOW_API_DISCONNECT))
372                 .WillRepeatedly(Return(0));
373 
374         return injector;
375     }
376 
377     // Called by tests to set up any native window creation call expectations.
setupNativeWindowSurfaceCreationCallExpectationsandroid::__anon968546880111::DisplayVariant378     static void setupNativeWindowSurfaceCreationCallExpectations(DisplayTransactionTest* test) {
379         EXPECT_CALL(*test->mNativeWindowSurface, getNativeWindow())
380                 .WillOnce(Return(test->mNativeWindow));
381 
382         EXPECT_CALL(*test->mNativeWindow, query(NATIVE_WINDOW_WIDTH, _))
383                 .WillRepeatedly(DoAll(SetArgPointee<1>(WIDTH), Return(0)));
384         EXPECT_CALL(*test->mNativeWindow, query(NATIVE_WINDOW_HEIGHT, _))
385                 .WillRepeatedly(DoAll(SetArgPointee<1>(HEIGHT), Return(0)));
386         EXPECT_CALL(*test->mNativeWindow, perform(NATIVE_WINDOW_SET_BUFFERS_FORMAT))
387                 .WillRepeatedly(Return(0));
388         EXPECT_CALL(*test->mNativeWindow, perform(NATIVE_WINDOW_API_CONNECT))
389                 .WillRepeatedly(Return(0));
390         EXPECT_CALL(*test->mNativeWindow, perform(NATIVE_WINDOW_SET_USAGE64))
391                 .WillRepeatedly(Return(0));
392         EXPECT_CALL(*test->mNativeWindow, perform(NATIVE_WINDOW_API_DISCONNECT))
393                 .WillRepeatedly(Return(0));
394     }
395 
setupFramebufferConsumerBufferQueueCallExpectationsandroid::__anon968546880111::DisplayVariant396     static void setupFramebufferConsumerBufferQueueCallExpectations(DisplayTransactionTest* test) {
397         EXPECT_CALL(*test->mConsumer, consumerConnect(_, false)).WillOnce(Return(NO_ERROR));
398         EXPECT_CALL(*test->mConsumer, setConsumerName(_)).WillRepeatedly(Return(NO_ERROR));
399         EXPECT_CALL(*test->mConsumer, setConsumerUsageBits(GRALLOC_USAGE))
400                 .WillRepeatedly(Return(NO_ERROR));
401         EXPECT_CALL(*test->mConsumer, setDefaultBufferSize(WIDTH, HEIGHT))
402                 .WillRepeatedly(Return(NO_ERROR));
403         EXPECT_CALL(*test->mConsumer, setMaxAcquiredBufferCount(_))
404                 .WillRepeatedly(Return(NO_ERROR));
405     }
406 
setupFramebufferProducerBufferQueueCallExpectationsandroid::__anon968546880111::DisplayVariant407     static void setupFramebufferProducerBufferQueueCallExpectations(DisplayTransactionTest* test) {
408         EXPECT_CALL(*test->mProducer, allocateBuffers(0, 0, 0, 0)).WillRepeatedly(Return());
409     }
410 };
411 
412 template <hwc2_display_t hwcDisplayId, HWC2::DisplayType hwcDisplayType, typename DisplayVariant,
413           typename PhysicalDisplay = void>
414 struct HwcDisplayVariant {
415     // The display id supplied by the HWC
416     static constexpr hwc2_display_t HWC_DISPLAY_ID = hwcDisplayId;
417 
418     // The HWC display type
419     static constexpr HWC2::DisplayType HWC_DISPLAY_TYPE = hwcDisplayType;
420 
421     // The HWC active configuration id
422     static constexpr int HWC_ACTIVE_CONFIG_ID = 2001;
423     static constexpr int INIT_POWER_MODE = HWC_POWER_MODE_NORMAL;
424 
injectPendingHotplugEventandroid::__anon968546880111::HwcDisplayVariant425     static void injectPendingHotplugEvent(DisplayTransactionTest* test,
426                                           HWC2::Connection connection) {
427         test->mFlinger.mutablePendingHotplugEvents().emplace_back(
428                 HotplugEvent{HWC_DISPLAY_ID, connection});
429     }
430 
431     // Called by tests to inject a HWC display setup
injectHwcDisplayWithNoDefaultCapabilitiesandroid::__anon968546880111::HwcDisplayVariant432     static void injectHwcDisplayWithNoDefaultCapabilities(DisplayTransactionTest* test) {
433         const auto displayId = DisplayVariant::DISPLAY_ID::get();
434         ASSERT_TRUE(displayId);
435         FakeHwcDisplayInjector(*displayId, HWC_DISPLAY_TYPE,
436                                static_cast<bool>(DisplayVariant::PRIMARY))
437                 .setHwcDisplayId(HWC_DISPLAY_ID)
438                 .setWidth(DisplayVariant::WIDTH)
439                 .setHeight(DisplayVariant::HEIGHT)
440                 .setActiveConfig(HWC_ACTIVE_CONFIG_ID)
441                 .setPowerMode(INIT_POWER_MODE)
442                 .inject(&test->mFlinger, test->mComposer);
443     }
444 
445     // Called by tests to inject a HWC display setup
injectHwcDisplayandroid::__anon968546880111::HwcDisplayVariant446     static void injectHwcDisplay(DisplayTransactionTest* test) {
447         EXPECT_CALL(*test->mComposer, getDisplayCapabilities(HWC_DISPLAY_ID, _))
448                 .WillOnce(DoAll(SetArgPointee<1>(std::vector<Hwc2::DisplayCapability>({})),
449                                 Return(Error::NONE)));
450         EXPECT_CALL(*test->mComposer,
451                     setPowerMode(HWC_DISPLAY_ID,
452                                  static_cast<Hwc2::IComposerClient::PowerMode>(INIT_POWER_MODE)))
453                 .WillOnce(Return(Error::NONE));
454         injectHwcDisplayWithNoDefaultCapabilities(test);
455     }
456 
setupHwcHotplugCallExpectationsandroid::__anon968546880111::HwcDisplayVariant457     static void setupHwcHotplugCallExpectations(DisplayTransactionTest* test) {
458         EXPECT_CALL(*test->mComposer, getDisplayType(HWC_DISPLAY_ID, _))
459                 .WillOnce(DoAll(SetArgPointee<1>(static_cast<IComposerClient::DisplayType>(
460                                         HWC_DISPLAY_TYPE)),
461                                 Return(Error::NONE)));
462         EXPECT_CALL(*test->mComposer, setClientTargetSlotCount(_)).WillOnce(Return(Error::NONE));
463         EXPECT_CALL(*test->mComposer, getDisplayConfigs(HWC_DISPLAY_ID, _))
464                 .WillOnce(DoAll(SetArgPointee<1>(std::vector<unsigned>{HWC_ACTIVE_CONFIG_ID}),
465                                 Return(Error::NONE)));
466         EXPECT_CALL(*test->mComposer,
467                     getDisplayAttribute(HWC_DISPLAY_ID, HWC_ACTIVE_CONFIG_ID,
468                                         IComposerClient::Attribute::WIDTH, _))
469                 .WillOnce(DoAll(SetArgPointee<3>(DisplayVariant::WIDTH), Return(Error::NONE)));
470         EXPECT_CALL(*test->mComposer,
471                     getDisplayAttribute(HWC_DISPLAY_ID, HWC_ACTIVE_CONFIG_ID,
472                                         IComposerClient::Attribute::HEIGHT, _))
473                 .WillOnce(DoAll(SetArgPointee<3>(DisplayVariant::HEIGHT), Return(Error::NONE)));
474         EXPECT_CALL(*test->mComposer,
475                     getDisplayAttribute(HWC_DISPLAY_ID, HWC_ACTIVE_CONFIG_ID,
476                                         IComposerClient::Attribute::VSYNC_PERIOD, _))
477                 .WillOnce(DoAll(SetArgPointee<3>(DEFAULT_REFRESH_RATE), Return(Error::NONE)));
478         EXPECT_CALL(*test->mComposer,
479                     getDisplayAttribute(HWC_DISPLAY_ID, HWC_ACTIVE_CONFIG_ID,
480                                         IComposerClient::Attribute::DPI_X, _))
481                 .WillOnce(DoAll(SetArgPointee<3>(DEFAULT_DPI), Return(Error::NONE)));
482         EXPECT_CALL(*test->mComposer,
483                     getDisplayAttribute(HWC_DISPLAY_ID, HWC_ACTIVE_CONFIG_ID,
484                                         IComposerClient::Attribute::DPI_Y, _))
485                 .WillOnce(DoAll(SetArgPointee<3>(DEFAULT_DPI), Return(Error::NONE)));
486 
487         if (PhysicalDisplay::HAS_IDENTIFICATION_DATA) {
488             EXPECT_CALL(*test->mComposer, getDisplayIdentificationData(HWC_DISPLAY_ID, _, _))
489                     .WillOnce(DoAll(SetArgPointee<1>(PhysicalDisplay::PORT),
490                                     SetArgPointee<2>(PhysicalDisplay::GET_IDENTIFICATION_DATA()),
491                                     Return(Error::NONE)));
492         } else {
493             EXPECT_CALL(*test->mComposer, getDisplayIdentificationData(HWC_DISPLAY_ID, _, _))
494                     .WillOnce(Return(Error::UNSUPPORTED));
495         }
496     }
497 
498     // Called by tests to set up HWC call expectations
setupHwcGetActiveConfigCallExpectationsandroid::__anon968546880111::HwcDisplayVariant499     static void setupHwcGetActiveConfigCallExpectations(DisplayTransactionTest* test) {
500         EXPECT_CALL(*test->mComposer, getActiveConfig(HWC_DISPLAY_ID, _))
501                 .WillRepeatedly(DoAll(SetArgPointee<1>(HWC_ACTIVE_CONFIG_ID), Return(Error::NONE)));
502     }
503 };
504 
505 // Physical displays are expected to be synchronous, secure, and have a HWC display for output.
506 constexpr uint32_t GRALLOC_USAGE_PHYSICAL_DISPLAY =
507         GRALLOC_USAGE_HW_RENDER | GRALLOC_USAGE_HW_COMPOSER | GRALLOC_USAGE_HW_FB;
508 
509 template <hwc2_display_t hwcDisplayId, typename PhysicalDisplay, int width, int height,
510           Critical critical>
511 struct PhysicalDisplayVariant
512       : DisplayVariant<PhysicalDisplayId<PhysicalDisplay>, width, height, critical, Async::FALSE,
513                        Secure::TRUE, PhysicalDisplay::PRIMARY, GRALLOC_USAGE_PHYSICAL_DISPLAY>,
514         HwcDisplayVariant<hwcDisplayId, HWC2::DisplayType::Physical,
515                           DisplayVariant<PhysicalDisplayId<PhysicalDisplay>, width, height,
516                                          critical, Async::FALSE, Secure::TRUE,
517                                          PhysicalDisplay::PRIMARY, GRALLOC_USAGE_PHYSICAL_DISPLAY>,
518                           PhysicalDisplay> {};
519 
520 template <bool hasIdentificationData>
521 struct PrimaryDisplay {
522     static constexpr Primary PRIMARY = Primary::TRUE;
523     static constexpr uint8_t PORT = 255;
524     static constexpr bool HAS_IDENTIFICATION_DATA = hasIdentificationData;
525     static constexpr auto GET_IDENTIFICATION_DATA = getInternalEdid;
526 };
527 
528 template <bool hasIdentificationData>
529 struct ExternalDisplay {
530     static constexpr Primary PRIMARY = Primary::FALSE;
531     static constexpr uint8_t PORT = 254;
532     static constexpr bool HAS_IDENTIFICATION_DATA = hasIdentificationData;
533     static constexpr auto GET_IDENTIFICATION_DATA = getExternalEdid;
534 };
535 
536 struct TertiaryDisplay {
537     static constexpr Primary PRIMARY = Primary::FALSE;
538     static constexpr uint8_t PORT = 253;
539     static constexpr auto GET_IDENTIFICATION_DATA = getExternalEdid;
540 };
541 
542 // A primary display is a physical display that is critical
543 using PrimaryDisplayVariant =
544         PhysicalDisplayVariant<1001, PrimaryDisplay<false>, 3840, 2160, Critical::TRUE>;
545 
546 // An external display is physical display that is not critical.
547 using ExternalDisplayVariant =
548         PhysicalDisplayVariant<1002, ExternalDisplay<false>, 1920, 1280, Critical::FALSE>;
549 
550 using TertiaryDisplayVariant =
551         PhysicalDisplayVariant<1003, TertiaryDisplay, 1600, 1200, Critical::FALSE>;
552 
553 // A virtual display not supported by the HWC.
554 constexpr uint32_t GRALLOC_USAGE_NONHWC_VIRTUAL_DISPLAY = 0;
555 
556 template <int width, int height, Secure secure>
557 struct NonHwcVirtualDisplayVariant
558       : DisplayVariant<NoDisplayId, width, height, Critical::FALSE, Async::TRUE, secure,
559                        Primary::FALSE, GRALLOC_USAGE_NONHWC_VIRTUAL_DISPLAY> {
560     using Base = DisplayVariant<NoDisplayId, width, height, Critical::FALSE, Async::TRUE, secure,
561                                 Primary::FALSE, GRALLOC_USAGE_NONHWC_VIRTUAL_DISPLAY>;
562 
injectHwcDisplayandroid::__anon968546880111::NonHwcVirtualDisplayVariant563     static void injectHwcDisplay(DisplayTransactionTest*) {}
564 
setupHwcGetActiveConfigCallExpectationsandroid::__anon968546880111::NonHwcVirtualDisplayVariant565     static void setupHwcGetActiveConfigCallExpectations(DisplayTransactionTest* test) {
566         EXPECT_CALL(*test->mComposer, getActiveConfig(_, _)).Times(0);
567     }
568 
setupNativeWindowSurfaceCreationCallExpectationsandroid::__anon968546880111::NonHwcVirtualDisplayVariant569     static void setupNativeWindowSurfaceCreationCallExpectations(DisplayTransactionTest* test) {
570         Base::setupNativeWindowSurfaceCreationCallExpectations(test);
571         EXPECT_CALL(*test->mNativeWindow, setSwapInterval(0)).Times(1);
572     }
573 };
574 
575 // A virtual display supported by the HWC.
576 constexpr uint32_t GRALLOC_USAGE_HWC_VIRTUAL_DISPLAY = GRALLOC_USAGE_HW_COMPOSER;
577 
578 template <int width, int height, Secure secure>
579 struct HwcVirtualDisplayVariant
580       : DisplayVariant<VirtualDisplayId<42>, width, height, Critical::FALSE, Async::TRUE, secure,
581                        Primary::FALSE, GRALLOC_USAGE_HWC_VIRTUAL_DISPLAY>,
582         HwcDisplayVariant<
583                 1010, HWC2::DisplayType::Virtual,
584                 DisplayVariant<VirtualDisplayId<42>, width, height, Critical::FALSE, Async::TRUE,
585                                secure, Primary::FALSE, GRALLOC_USAGE_HWC_VIRTUAL_DISPLAY>> {
586     using Base = DisplayVariant<VirtualDisplayId<42>, width, height, Critical::FALSE, Async::TRUE,
587                                 secure, Primary::FALSE, GRALLOC_USAGE_HW_COMPOSER>;
588     using Self = HwcVirtualDisplayVariant<width, height, secure>;
589 
setupNativeWindowSurfaceCreationCallExpectationsandroid::__anon968546880111::HwcVirtualDisplayVariant590     static void setupNativeWindowSurfaceCreationCallExpectations(DisplayTransactionTest* test) {
591         Base::setupNativeWindowSurfaceCreationCallExpectations(test);
592         EXPECT_CALL(*test->mNativeWindow, setSwapInterval(0)).Times(1);
593     }
594 
setupHwcVirtualDisplayCreationCallExpectationsandroid::__anon968546880111::HwcVirtualDisplayVariant595     static void setupHwcVirtualDisplayCreationCallExpectations(DisplayTransactionTest* test) {
596         EXPECT_CALL(*test->mComposer, createVirtualDisplay(Base::WIDTH, Base::HEIGHT, _, _))
597                 .WillOnce(DoAll(SetArgPointee<3>(Self::HWC_DISPLAY_ID), Return(Error::NONE)));
598         EXPECT_CALL(*test->mComposer, setClientTargetSlotCount(_)).WillOnce(Return(Error::NONE));
599     }
600 };
601 
602 // For this variant, SurfaceFlinger should not configure itself with wide
603 // display support, so the display should not be configured for wide-color
604 // support.
605 struct WideColorSupportNotConfiguredVariant {
606     static constexpr bool WIDE_COLOR_SUPPORTED = false;
607 
injectConfigChangeandroid::__anon968546880111::WideColorSupportNotConfiguredVariant608     static void injectConfigChange(DisplayTransactionTest* test) {
609         test->mFlinger.mutableHasWideColorDisplay() = false;
610         test->mFlinger.mutableUseColorManagement() = false;
611         test->mFlinger.mutableDisplayColorSetting() = DisplayColorSetting::UNMANAGED;
612     }
613 
setupComposerCallExpectationsandroid::__anon968546880111::WideColorSupportNotConfiguredVariant614     static void setupComposerCallExpectations(DisplayTransactionTest* test) {
615         EXPECT_CALL(*test->mComposer, getColorModes(_, _)).Times(0);
616         EXPECT_CALL(*test->mComposer, getRenderIntents(_, _, _)).Times(0);
617         EXPECT_CALL(*test->mComposer, setColorMode(_, _, _)).Times(0);
618     }
619 };
620 
621 // For this variant, SurfaceFlinger should configure itself with wide display
622 // support, and the display should respond with an non-empty list of supported
623 // color modes. Wide-color support should be configured.
624 template <typename Display>
625 struct WideColorP3ColorimetricSupportedVariant {
626     static constexpr bool WIDE_COLOR_SUPPORTED = true;
627 
injectConfigChangeandroid::__anon968546880111::WideColorP3ColorimetricSupportedVariant628     static void injectConfigChange(DisplayTransactionTest* test) {
629         test->mFlinger.mutableUseColorManagement() = true;
630         test->mFlinger.mutableHasWideColorDisplay() = true;
631         test->mFlinger.mutableDisplayColorSetting() = DisplayColorSetting::UNMANAGED;
632     }
633 
setupComposerCallExpectationsandroid::__anon968546880111::WideColorP3ColorimetricSupportedVariant634     static void setupComposerCallExpectations(DisplayTransactionTest* test) {
635         EXPECT_CALL(*test->mNativeWindow, perform(NATIVE_WINDOW_SET_BUFFERS_DATASPACE)).Times(1);
636 
637         EXPECT_CALL(*test->mComposer, getColorModes(Display::HWC_DISPLAY_ID, _))
638                 .WillOnce(DoAll(SetArgPointee<1>(std::vector<ColorMode>({ColorMode::DISPLAY_P3})),
639                                 Return(Error::NONE)));
640         EXPECT_CALL(*test->mComposer,
641                     getRenderIntents(Display::HWC_DISPLAY_ID, ColorMode::DISPLAY_P3, _))
642                 .WillOnce(DoAll(SetArgPointee<2>(
643                                         std::vector<RenderIntent>({RenderIntent::COLORIMETRIC})),
644                                 Return(Error::NONE)));
645         EXPECT_CALL(*test->mComposer,
646                     setColorMode(Display::HWC_DISPLAY_ID, ColorMode::SRGB,
647                                  RenderIntent::COLORIMETRIC))
648                 .WillOnce(Return(Error::NONE));
649     }
650 };
651 
652 // For this variant, SurfaceFlinger should configure itself with wide display
653 // support, but the display should respond with an empty list of supported color
654 // modes. Wide-color support for the display should not be configured.
655 template <typename Display>
656 struct WideColorNotSupportedVariant {
657     static constexpr bool WIDE_COLOR_SUPPORTED = false;
658 
injectConfigChangeandroid::__anon968546880111::WideColorNotSupportedVariant659     static void injectConfigChange(DisplayTransactionTest* test) {
660         test->mFlinger.mutableUseColorManagement() = true;
661         test->mFlinger.mutableHasWideColorDisplay() = true;
662     }
663 
setupComposerCallExpectationsandroid::__anon968546880111::WideColorNotSupportedVariant664     static void setupComposerCallExpectations(DisplayTransactionTest* test) {
665         EXPECT_CALL(*test->mComposer, getColorModes(Display::HWC_DISPLAY_ID, _))
666                 .WillOnce(DoAll(SetArgPointee<1>(std::vector<ColorMode>()), Return(Error::NONE)));
667         EXPECT_CALL(*test->mComposer, setColorMode(_, _, _)).Times(0);
668     }
669 };
670 
671 // For this variant, the display is not a HWC display, so no HDR support should
672 // be configured.
673 struct NonHwcDisplayHdrSupportVariant {
674     static constexpr bool HDR10_PLUS_SUPPORTED = false;
675     static constexpr bool HDR10_SUPPORTED = false;
676     static constexpr bool HDR_HLG_SUPPORTED = false;
677     static constexpr bool HDR_DOLBY_VISION_SUPPORTED = false;
setupComposerCallExpectationsandroid::__anon968546880111::NonHwcDisplayHdrSupportVariant678     static void setupComposerCallExpectations(DisplayTransactionTest* test) {
679         EXPECT_CALL(*test->mComposer, getHdrCapabilities(_, _, _, _, _)).Times(0);
680     }
681 };
682 
683 template <typename Display>
684 struct Hdr10PlusSupportedVariant {
685     static constexpr bool HDR10_PLUS_SUPPORTED = true;
686     static constexpr bool HDR10_SUPPORTED = true;
687     static constexpr bool HDR_HLG_SUPPORTED = false;
688     static constexpr bool HDR_DOLBY_VISION_SUPPORTED = false;
setupComposerCallExpectationsandroid::__anon968546880111::Hdr10PlusSupportedVariant689     static void setupComposerCallExpectations(DisplayTransactionTest* test) {
690         EXPECT_CALL(*test->mComposer, getHdrCapabilities(_, _, _, _, _))
691                 .WillOnce(DoAll(SetArgPointee<1>(std::vector<Hdr>({
692                                         Hdr::HDR10_PLUS,
693                                         Hdr::HDR10,
694                                 })),
695                                 Return(Error::NONE)));
696     }
697 };
698 
699 // For this variant, the composer should respond with a non-empty list of HDR
700 // modes containing HDR10, so HDR10 support should be configured.
701 template <typename Display>
702 struct Hdr10SupportedVariant {
703     static constexpr bool HDR10_PLUS_SUPPORTED = false;
704     static constexpr bool HDR10_SUPPORTED = true;
705     static constexpr bool HDR_HLG_SUPPORTED = false;
706     static constexpr bool HDR_DOLBY_VISION_SUPPORTED = false;
setupComposerCallExpectationsandroid::__anon968546880111::Hdr10SupportedVariant707     static void setupComposerCallExpectations(DisplayTransactionTest* test) {
708         EXPECT_CALL(*test->mComposer, getHdrCapabilities(Display::HWC_DISPLAY_ID, _, _, _, _))
709                 .WillOnce(DoAll(SetArgPointee<1>(std::vector<Hdr>({Hdr::HDR10})),
710                                 Return(Error::NONE)));
711     }
712 };
713 
714 // For this variant, the composer should respond with a non-empty list of HDR
715 // modes containing HLG, so HLG support should be configured.
716 template <typename Display>
717 struct HdrHlgSupportedVariant {
718     static constexpr bool HDR10_PLUS_SUPPORTED = false;
719     static constexpr bool HDR10_SUPPORTED = false;
720     static constexpr bool HDR_HLG_SUPPORTED = true;
721     static constexpr bool HDR_DOLBY_VISION_SUPPORTED = false;
setupComposerCallExpectationsandroid::__anon968546880111::HdrHlgSupportedVariant722     static void setupComposerCallExpectations(DisplayTransactionTest* test) {
723         EXPECT_CALL(*test->mComposer, getHdrCapabilities(Display::HWC_DISPLAY_ID, _, _, _, _))
724                 .WillOnce(
725                         DoAll(SetArgPointee<1>(std::vector<Hdr>({Hdr::HLG})), Return(Error::NONE)));
726     }
727 };
728 
729 // For this variant, the composer should respond with a non-empty list of HDR
730 // modes containing DOLBY_VISION, so DOLBY_VISION support should be configured.
731 template <typename Display>
732 struct HdrDolbyVisionSupportedVariant {
733     static constexpr bool HDR10_PLUS_SUPPORTED = false;
734     static constexpr bool HDR10_SUPPORTED = false;
735     static constexpr bool HDR_HLG_SUPPORTED = false;
736     static constexpr bool HDR_DOLBY_VISION_SUPPORTED = true;
setupComposerCallExpectationsandroid::__anon968546880111::HdrDolbyVisionSupportedVariant737     static void setupComposerCallExpectations(DisplayTransactionTest* test) {
738         EXPECT_CALL(*test->mComposer, getHdrCapabilities(Display::HWC_DISPLAY_ID, _, _, _, _))
739                 .WillOnce(DoAll(SetArgPointee<1>(std::vector<Hdr>({Hdr::DOLBY_VISION})),
740                                 Return(Error::NONE)));
741     }
742 };
743 
744 // For this variant, the composer should respond with am empty list of HDR
745 // modes, so no HDR support should be configured.
746 template <typename Display>
747 struct HdrNotSupportedVariant {
748     static constexpr bool HDR10_PLUS_SUPPORTED = false;
749     static constexpr bool HDR10_SUPPORTED = false;
750     static constexpr bool HDR_HLG_SUPPORTED = false;
751     static constexpr bool HDR_DOLBY_VISION_SUPPORTED = false;
setupComposerCallExpectationsandroid::__anon968546880111::HdrNotSupportedVariant752     static void setupComposerCallExpectations(DisplayTransactionTest* test) {
753         EXPECT_CALL(*test->mComposer, getHdrCapabilities(Display::HWC_DISPLAY_ID, _, _, _, _))
754                 .WillOnce(DoAll(SetArgPointee<1>(std::vector<Hdr>()), Return(Error::NONE)));
755     }
756 };
757 
758 struct NonHwcPerFrameMetadataSupportVariant {
759     static constexpr int PER_FRAME_METADATA_KEYS = 0;
setupComposerCallExpectationsandroid::__anon968546880111::NonHwcPerFrameMetadataSupportVariant760     static void setupComposerCallExpectations(DisplayTransactionTest* test) {
761         EXPECT_CALL(*test->mComposer, getPerFrameMetadataKeys(_)).Times(0);
762     }
763 };
764 
765 template <typename Display>
766 struct NoPerFrameMetadataSupportVariant {
767     static constexpr int PER_FRAME_METADATA_KEYS = 0;
setupComposerCallExpectationsandroid::__anon968546880111::NoPerFrameMetadataSupportVariant768     static void setupComposerCallExpectations(DisplayTransactionTest* test) {
769         EXPECT_CALL(*test->mComposer, getPerFrameMetadataKeys(Display::HWC_DISPLAY_ID))
770                 .WillOnce(Return(std::vector<PerFrameMetadataKey>()));
771     }
772 };
773 
774 template <typename Display>
775 struct Smpte2086PerFrameMetadataSupportVariant {
776     static constexpr int PER_FRAME_METADATA_KEYS = HdrMetadata::Type::SMPTE2086;
setupComposerCallExpectationsandroid::__anon968546880111::Smpte2086PerFrameMetadataSupportVariant777     static void setupComposerCallExpectations(DisplayTransactionTest* test) {
778         EXPECT_CALL(*test->mComposer, getPerFrameMetadataKeys(Display::HWC_DISPLAY_ID))
779                 .WillOnce(Return(std::vector<PerFrameMetadataKey>({
780                         PerFrameMetadataKey::DISPLAY_RED_PRIMARY_X,
781                         PerFrameMetadataKey::DISPLAY_RED_PRIMARY_Y,
782                         PerFrameMetadataKey::DISPLAY_GREEN_PRIMARY_X,
783                         PerFrameMetadataKey::DISPLAY_GREEN_PRIMARY_Y,
784                         PerFrameMetadataKey::DISPLAY_BLUE_PRIMARY_X,
785                         PerFrameMetadataKey::DISPLAY_BLUE_PRIMARY_Y,
786                         PerFrameMetadataKey::WHITE_POINT_X,
787                         PerFrameMetadataKey::WHITE_POINT_Y,
788                         PerFrameMetadataKey::MAX_LUMINANCE,
789                         PerFrameMetadataKey::MIN_LUMINANCE,
790                 })));
791     }
792 };
793 
794 template <typename Display>
795 struct Cta861_3_PerFrameMetadataSupportVariant {
796     static constexpr int PER_FRAME_METADATA_KEYS = HdrMetadata::Type::CTA861_3;
setupComposerCallExpectationsandroid::__anon968546880111::Cta861_3_PerFrameMetadataSupportVariant797     static void setupComposerCallExpectations(DisplayTransactionTest* test) {
798         EXPECT_CALL(*test->mComposer, getPerFrameMetadataKeys(Display::HWC_DISPLAY_ID))
799                 .WillOnce(Return(std::vector<PerFrameMetadataKey>({
800                         PerFrameMetadataKey::MAX_CONTENT_LIGHT_LEVEL,
801                         PerFrameMetadataKey::MAX_FRAME_AVERAGE_LIGHT_LEVEL,
802                 })));
803     }
804 };
805 
806 template <typename Display>
807 struct Hdr10_Plus_PerFrameMetadataSupportVariant {
808     static constexpr int PER_FRAME_METADATA_KEYS = HdrMetadata::Type::HDR10PLUS;
setupComposerCallExpectationsandroid::__anon968546880111::Hdr10_Plus_PerFrameMetadataSupportVariant809     static void setupComposerCallExpectations(DisplayTransactionTest* test) {
810         EXPECT_CALL(*test->mComposer, getPerFrameMetadataKeys(Display::HWC_DISPLAY_ID))
811                 .WillOnce(Return(std::vector<PerFrameMetadataKey>({
812                         PerFrameMetadataKey::HDR10_PLUS_SEI,
813                 })));
814     }
815 };
816 /* ------------------------------------------------------------------------
817  * Typical display configurations to test
818  */
819 
820 template <typename DisplayPolicy, typename WideColorSupportPolicy, typename HdrSupportPolicy,
821           typename PerFrameMetadataSupportPolicy>
822 struct Case {
823     using Display = DisplayPolicy;
824     using WideColorSupport = WideColorSupportPolicy;
825     using HdrSupport = HdrSupportPolicy;
826     using PerFrameMetadataSupport = PerFrameMetadataSupportPolicy;
827 };
828 
829 using SimplePrimaryDisplayCase =
830         Case<PrimaryDisplayVariant, WideColorNotSupportedVariant<PrimaryDisplayVariant>,
831              HdrNotSupportedVariant<PrimaryDisplayVariant>,
832              NoPerFrameMetadataSupportVariant<PrimaryDisplayVariant>>;
833 using SimpleExternalDisplayCase =
834         Case<ExternalDisplayVariant, WideColorNotSupportedVariant<ExternalDisplayVariant>,
835              HdrNotSupportedVariant<ExternalDisplayVariant>,
836              NoPerFrameMetadataSupportVariant<ExternalDisplayVariant>>;
837 using SimpleTertiaryDisplayCase =
838         Case<TertiaryDisplayVariant, WideColorNotSupportedVariant<TertiaryDisplayVariant>,
839              HdrNotSupportedVariant<TertiaryDisplayVariant>,
840              NoPerFrameMetadataSupportVariant<TertiaryDisplayVariant>>;
841 using NonHwcVirtualDisplayCase =
842         Case<NonHwcVirtualDisplayVariant<1024, 768, Secure::FALSE>,
843              WideColorSupportNotConfiguredVariant, NonHwcDisplayHdrSupportVariant,
844              NonHwcPerFrameMetadataSupportVariant>;
845 using SimpleHwcVirtualDisplayVariant = HwcVirtualDisplayVariant<1024, 768, Secure::TRUE>;
846 using HwcVirtualDisplayCase =
847         Case<SimpleHwcVirtualDisplayVariant, WideColorSupportNotConfiguredVariant,
848              HdrNotSupportedVariant<SimpleHwcVirtualDisplayVariant>,
849              NoPerFrameMetadataSupportVariant<SimpleHwcVirtualDisplayVariant>>;
850 using WideColorP3ColorimetricDisplayCase =
851         Case<PrimaryDisplayVariant, WideColorP3ColorimetricSupportedVariant<PrimaryDisplayVariant>,
852              HdrNotSupportedVariant<PrimaryDisplayVariant>,
853              NoPerFrameMetadataSupportVariant<PrimaryDisplayVariant>>;
854 using Hdr10PlusDisplayCase =
855         Case<PrimaryDisplayVariant, WideColorNotSupportedVariant<PrimaryDisplayVariant>,
856              Hdr10SupportedVariant<PrimaryDisplayVariant>,
857              Hdr10_Plus_PerFrameMetadataSupportVariant<PrimaryDisplayVariant>>;
858 using Hdr10DisplayCase =
859         Case<PrimaryDisplayVariant, WideColorNotSupportedVariant<PrimaryDisplayVariant>,
860              Hdr10SupportedVariant<PrimaryDisplayVariant>,
861              NoPerFrameMetadataSupportVariant<PrimaryDisplayVariant>>;
862 using HdrHlgDisplayCase =
863         Case<PrimaryDisplayVariant, WideColorNotSupportedVariant<PrimaryDisplayVariant>,
864              HdrHlgSupportedVariant<PrimaryDisplayVariant>,
865              NoPerFrameMetadataSupportVariant<PrimaryDisplayVariant>>;
866 using HdrDolbyVisionDisplayCase =
867         Case<PrimaryDisplayVariant, WideColorNotSupportedVariant<PrimaryDisplayVariant>,
868              HdrDolbyVisionSupportedVariant<PrimaryDisplayVariant>,
869              NoPerFrameMetadataSupportVariant<PrimaryDisplayVariant>>;
870 using HdrSmpte2086DisplayCase =
871         Case<PrimaryDisplayVariant, WideColorNotSupportedVariant<PrimaryDisplayVariant>,
872              HdrNotSupportedVariant<PrimaryDisplayVariant>,
873              Smpte2086PerFrameMetadataSupportVariant<PrimaryDisplayVariant>>;
874 using HdrCta861_3_DisplayCase =
875         Case<PrimaryDisplayVariant, WideColorNotSupportedVariant<PrimaryDisplayVariant>,
876              HdrNotSupportedVariant<PrimaryDisplayVariant>,
877              Cta861_3_PerFrameMetadataSupportVariant<PrimaryDisplayVariant>>;
878 
879 /* ------------------------------------------------------------------------
880  *
881  * SurfaceFlinger::onHotplugReceived
882  */
883 
TEST_F(DisplayTransactionTest,hotplugEnqueuesEventsForDisplayTransaction)884 TEST_F(DisplayTransactionTest, hotplugEnqueuesEventsForDisplayTransaction) {
885     constexpr int currentSequenceId = 123;
886     constexpr hwc2_display_t hwcDisplayId1 = 456;
887     constexpr hwc2_display_t hwcDisplayId2 = 654;
888 
889     // --------------------------------------------------------------------
890     // Preconditions
891 
892     // Set the current sequence id for accepted events
893     mFlinger.mutableComposerSequenceId() = currentSequenceId;
894 
895     // Set the main thread id so that the current thread does not appear to be
896     // the main thread.
897     mFlinger.mutableMainThreadId() = std::thread::id();
898 
899     // --------------------------------------------------------------------
900     // Call Expectations
901 
902     // We expect invalidate() to be invoked once to trigger display transaction
903     // processing.
904     EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);
905 
906     // --------------------------------------------------------------------
907     // Invocation
908 
909     // Simulate two hotplug events (a connect and a disconnect)
910     mFlinger.onHotplugReceived(currentSequenceId, hwcDisplayId1, HWC2::Connection::Connected);
911     mFlinger.onHotplugReceived(currentSequenceId, hwcDisplayId2, HWC2::Connection::Disconnected);
912 
913     // --------------------------------------------------------------------
914     // Postconditions
915 
916     // The display transaction needed flag should be set.
917     EXPECT_TRUE(hasTransactionFlagSet(eDisplayTransactionNeeded));
918 
919     // All events should be in the pending event queue.
920     const auto& pendingEvents = mFlinger.mutablePendingHotplugEvents();
921     ASSERT_EQ(2u, pendingEvents.size());
922     EXPECT_EQ(hwcDisplayId1, pendingEvents[0].hwcDisplayId);
923     EXPECT_EQ(HWC2::Connection::Connected, pendingEvents[0].connection);
924     EXPECT_EQ(hwcDisplayId2, pendingEvents[1].hwcDisplayId);
925     EXPECT_EQ(HWC2::Connection::Disconnected, pendingEvents[1].connection);
926 }
927 
TEST_F(DisplayTransactionTest,hotplugDiscardsUnexpectedEvents)928 TEST_F(DisplayTransactionTest, hotplugDiscardsUnexpectedEvents) {
929     constexpr int currentSequenceId = 123;
930     constexpr int otherSequenceId = 321;
931     constexpr hwc2_display_t displayId = 456;
932 
933     // --------------------------------------------------------------------
934     // Preconditions
935 
936     // Set the current sequence id for accepted events
937     mFlinger.mutableComposerSequenceId() = currentSequenceId;
938 
939     // Set the main thread id so that the current thread does not appear to be
940     // the main thread.
941     mFlinger.mutableMainThreadId() = std::thread::id();
942 
943     // --------------------------------------------------------------------
944     // Call Expectations
945 
946     // We do not expect any calls to invalidate().
947     EXPECT_CALL(*mMessageQueue, invalidate()).Times(0);
948 
949     // --------------------------------------------------------------------
950     // Invocation
951 
952     // Call with an unexpected sequence id
953     mFlinger.onHotplugReceived(otherSequenceId, displayId, HWC2::Connection::Invalid);
954 
955     // --------------------------------------------------------------------
956     // Postconditions
957 
958     // The display transaction needed flag should not be set
959     EXPECT_FALSE(hasTransactionFlagSet(eDisplayTransactionNeeded));
960 
961     // There should be no pending events
962     EXPECT_TRUE(mFlinger.mutablePendingHotplugEvents().empty());
963 }
964 
TEST_F(DisplayTransactionTest,hotplugProcessesEnqueuedEventsIfCalledOnMainThread)965 TEST_F(DisplayTransactionTest, hotplugProcessesEnqueuedEventsIfCalledOnMainThread) {
966     constexpr int currentSequenceId = 123;
967     constexpr hwc2_display_t displayId1 = 456;
968 
969     // --------------------------------------------------------------------
970     // Note:
971     // --------------------------------------------------------------------
972     // This test case is a bit tricky. We want to verify that
973     // onHotplugReceived() calls processDisplayHotplugEventsLocked(), but we
974     // don't really want to provide coverage for everything the later function
975     // does as there are specific tests for it.
976     // --------------------------------------------------------------------
977 
978     // --------------------------------------------------------------------
979     // Preconditions
980 
981     // Set the current sequence id for accepted events
982     mFlinger.mutableComposerSequenceId() = currentSequenceId;
983 
984     // Set the main thread id so that the current thread does appear to be the
985     // main thread.
986     mFlinger.mutableMainThreadId() = std::this_thread::get_id();
987 
988     // --------------------------------------------------------------------
989     // Call Expectations
990 
991     // We expect invalidate() to be invoked once to trigger display transaction
992     // processing.
993     EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);
994 
995     // --------------------------------------------------------------------
996     // Invocation
997 
998     // Simulate a disconnect on a display id that is not connected. This should
999     // be enqueued by onHotplugReceived(), and dequeued by
1000     // processDisplayHotplugEventsLocked(), but then ignored as invalid.
1001     mFlinger.onHotplugReceived(currentSequenceId, displayId1, HWC2::Connection::Disconnected);
1002 
1003     // --------------------------------------------------------------------
1004     // Postconditions
1005 
1006     // The display transaction needed flag should be set.
1007     EXPECT_TRUE(hasTransactionFlagSet(eDisplayTransactionNeeded));
1008 
1009     // There should be no event queued on return, as it should have been
1010     // processed.
1011     EXPECT_TRUE(mFlinger.mutablePendingHotplugEvents().empty());
1012 }
1013 
1014 /* ------------------------------------------------------------------------
1015  * SurfaceFlinger::createDisplay
1016  */
1017 
TEST_F(DisplayTransactionTest,createDisplaySetsCurrentStateForNonsecureDisplay)1018 TEST_F(DisplayTransactionTest, createDisplaySetsCurrentStateForNonsecureDisplay) {
1019     const String8 name("virtual.test");
1020 
1021     // --------------------------------------------------------------------
1022     // Call Expectations
1023 
1024     // The call should notify the interceptor that a display was created.
1025     EXPECT_CALL(*mSurfaceInterceptor, saveDisplayCreation(_)).Times(1);
1026 
1027     // --------------------------------------------------------------------
1028     // Invocation
1029 
1030     sp<IBinder> displayToken = mFlinger.createDisplay(name, false);
1031 
1032     // --------------------------------------------------------------------
1033     // Postconditions
1034 
1035     // The display should have been added to the current state
1036     ASSERT_TRUE(hasCurrentDisplayState(displayToken));
1037     const auto& display = getCurrentDisplayState(displayToken);
1038     EXPECT_TRUE(display.isVirtual());
1039     EXPECT_FALSE(display.isSecure);
1040     EXPECT_EQ(name.string(), display.displayName);
1041 
1042     // --------------------------------------------------------------------
1043     // Cleanup conditions
1044 
1045     // Destroying the display invalidates the display state.
1046     EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);
1047 }
1048 
TEST_F(DisplayTransactionTest,createDisplaySetsCurrentStateForSecureDisplay)1049 TEST_F(DisplayTransactionTest, createDisplaySetsCurrentStateForSecureDisplay) {
1050     const String8 name("virtual.test");
1051 
1052     // --------------------------------------------------------------------
1053     // Call Expectations
1054 
1055     // The call should notify the interceptor that a display was created.
1056     EXPECT_CALL(*mSurfaceInterceptor, saveDisplayCreation(_)).Times(1);
1057 
1058     // --------------------------------------------------------------------
1059     // Invocation
1060 
1061     sp<IBinder> displayToken = mFlinger.createDisplay(name, true);
1062 
1063     // --------------------------------------------------------------------
1064     // Postconditions
1065 
1066     // The display should have been added to the current state
1067     ASSERT_TRUE(hasCurrentDisplayState(displayToken));
1068     const auto& display = getCurrentDisplayState(displayToken);
1069     EXPECT_TRUE(display.isVirtual());
1070     EXPECT_TRUE(display.isSecure);
1071     EXPECT_EQ(name.string(), display.displayName);
1072 
1073     // --------------------------------------------------------------------
1074     // Cleanup conditions
1075 
1076     // Destroying the display invalidates the display state.
1077     EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);
1078 }
1079 
1080 /* ------------------------------------------------------------------------
1081  * SurfaceFlinger::destroyDisplay
1082  */
1083 
TEST_F(DisplayTransactionTest,destroyDisplayClearsCurrentStateForDisplay)1084 TEST_F(DisplayTransactionTest, destroyDisplayClearsCurrentStateForDisplay) {
1085     using Case = NonHwcVirtualDisplayCase;
1086 
1087     // --------------------------------------------------------------------
1088     // Preconditions
1089 
1090     // A virtual display exists
1091     auto existing = Case::Display::makeFakeExistingDisplayInjector(this);
1092     existing.inject();
1093 
1094     // --------------------------------------------------------------------
1095     // Call Expectations
1096 
1097     // The call should notify the interceptor that a display was created.
1098     EXPECT_CALL(*mSurfaceInterceptor, saveDisplayDeletion(_)).Times(1);
1099 
1100     // Destroying the display invalidates the display state.
1101     EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);
1102 
1103     // --------------------------------------------------------------------
1104     // Invocation
1105 
1106     mFlinger.destroyDisplay(existing.token());
1107 
1108     // --------------------------------------------------------------------
1109     // Postconditions
1110 
1111     // The display should have been removed from the current state
1112     EXPECT_FALSE(hasCurrentDisplayState(existing.token()));
1113 
1114     // Ths display should still exist in the drawing state
1115     EXPECT_TRUE(hasDrawingDisplayState(existing.token()));
1116 
1117     // The display transaction needed flasg should be set
1118     EXPECT_TRUE(hasTransactionFlagSet(eDisplayTransactionNeeded));
1119 }
1120 
TEST_F(DisplayTransactionTest,destroyDisplayHandlesUnknownDisplay)1121 TEST_F(DisplayTransactionTest, destroyDisplayHandlesUnknownDisplay) {
1122     // --------------------------------------------------------------------
1123     // Preconditions
1124 
1125     sp<BBinder> displayToken = new BBinder();
1126 
1127     // --------------------------------------------------------------------
1128     // Invocation
1129 
1130     mFlinger.destroyDisplay(displayToken);
1131 }
1132 
1133 /* ------------------------------------------------------------------------
1134  * SurfaceFlinger::resetDisplayState
1135  */
1136 
TEST_F(DisplayTransactionTest,resetDisplayStateClearsState)1137 TEST_F(DisplayTransactionTest, resetDisplayStateClearsState) {
1138     using Case = NonHwcVirtualDisplayCase;
1139 
1140     // --------------------------------------------------------------------
1141     // Preconditions
1142 
1143     // vsync is enabled and available
1144     mScheduler->mutablePrimaryHWVsyncEnabled() = true;
1145     mScheduler->mutableHWVsyncAvailable() = true;
1146 
1147     // A display exists
1148     auto existing = Case::Display::makeFakeExistingDisplayInjector(this);
1149     existing.inject();
1150 
1151     // --------------------------------------------------------------------
1152     // Call Expectations
1153 
1154     // The call disable vsyncs
1155     EXPECT_CALL(*mEventControlThread, setVsyncEnabled(false)).Times(1);
1156 
1157     // The call ends any display resyncs
1158     EXPECT_CALL(*mPrimaryDispSync, endResync()).Times(1);
1159 
1160     // --------------------------------------------------------------------
1161     // Invocation
1162 
1163     mFlinger.resetDisplayState();
1164 
1165     // --------------------------------------------------------------------
1166     // Postconditions
1167 
1168     // vsyncs should be off and not available.
1169     EXPECT_FALSE(mScheduler->mutablePrimaryHWVsyncEnabled());
1170     EXPECT_FALSE(mScheduler->mutableHWVsyncAvailable());
1171 
1172     // The display should have been removed from the display map.
1173     EXPECT_FALSE(hasDisplayDevice(existing.token()));
1174 
1175     // The display should still exist in the current state
1176     EXPECT_TRUE(hasCurrentDisplayState(existing.token()));
1177 
1178     // The display should have been removed from the drawing state
1179     EXPECT_FALSE(hasDrawingDisplayState(existing.token()));
1180 }
1181 
1182 /* ------------------------------------------------------------------------
1183  * DisplayDevice::GetBestColorMode
1184  */
1185 class GetBestColorModeTest : public DisplayTransactionTest {
1186 public:
1187     static constexpr DisplayId DEFAULT_DISPLAY_ID = DisplayId{777};
1188 
GetBestColorModeTest()1189     GetBestColorModeTest()
1190           : DisplayTransactionTest(),
1191             mInjector(FakeDisplayDeviceInjector(mFlinger, DEFAULT_DISPLAY_ID, false /* isVirtual */,
1192                                                 true /* isPrimary */)) {}
1193 
setHasWideColorGamut(bool hasWideColorGamut)1194     void setHasWideColorGamut(bool hasWideColorGamut) { mHasWideColorGamut = hasWideColorGamut; }
1195 
addHwcColorModesMapping(ui::ColorMode colorMode,std::vector<ui::RenderIntent> renderIntents)1196     void addHwcColorModesMapping(ui::ColorMode colorMode,
1197                                  std::vector<ui::RenderIntent> renderIntents) {
1198         mHwcColorModes[colorMode] = renderIntents;
1199     }
1200 
setInputDataspace(ui::Dataspace dataspace)1201     void setInputDataspace(ui::Dataspace dataspace) { mInputDataspace = dataspace; }
1202 
setInputRenderIntent(ui::RenderIntent renderIntent)1203     void setInputRenderIntent(ui::RenderIntent renderIntent) { mInputRenderIntent = renderIntent; }
1204 
getBestColorMode()1205     void getBestColorMode() {
1206         mInjector.setHwcColorModes(mHwcColorModes);
1207         mInjector.setHasWideColorGamut(mHasWideColorGamut);
1208         mInjector.setNativeWindow(mNativeWindow);
1209 
1210         // Creating a DisplayDevice requires getting default dimensions from the
1211         // native window.
1212         EXPECT_CALL(*mNativeWindow, query(NATIVE_WINDOW_WIDTH, _))
1213                 .WillRepeatedly(DoAll(SetArgPointee<1>(1080 /* arbitrary */), Return(0)));
1214         EXPECT_CALL(*mNativeWindow, query(NATIVE_WINDOW_HEIGHT, _))
1215                 .WillRepeatedly(DoAll(SetArgPointee<1>(1920 /* arbitrary */), Return(0)));
1216         EXPECT_CALL(*mNativeWindow, perform(NATIVE_WINDOW_SET_BUFFERS_FORMAT)).Times(1);
1217         EXPECT_CALL(*mNativeWindow, perform(NATIVE_WINDOW_API_CONNECT)).Times(1);
1218         EXPECT_CALL(*mNativeWindow, perform(NATIVE_WINDOW_SET_USAGE64)).Times(1);
1219         EXPECT_CALL(*mNativeWindow, perform(NATIVE_WINDOW_API_DISCONNECT)).Times(1);
1220         auto displayDevice = mInjector.inject();
1221 
1222         displayDevice->getCompositionDisplay()
1223                 ->getDisplayColorProfile()
1224                 ->getBestColorMode(mInputDataspace, mInputRenderIntent, &mOutDataspace,
1225                                    &mOutColorMode, &mOutRenderIntent);
1226     }
1227 
1228     ui::Dataspace mOutDataspace;
1229     ui::ColorMode mOutColorMode;
1230     ui::RenderIntent mOutRenderIntent;
1231 
1232 private:
1233     ui::Dataspace mInputDataspace;
1234     ui::RenderIntent mInputRenderIntent;
1235     bool mHasWideColorGamut = false;
1236     std::unordered_map<ui::ColorMode, std::vector<ui::RenderIntent>> mHwcColorModes;
1237     FakeDisplayDeviceInjector mInjector;
1238 };
1239 
TEST_F(GetBestColorModeTest,DataspaceDisplayP3_ColorModeSRGB)1240 TEST_F(GetBestColorModeTest, DataspaceDisplayP3_ColorModeSRGB) {
1241     addHwcColorModesMapping(ui::ColorMode::SRGB,
1242                             std::vector<ui::RenderIntent>(1, RenderIntent::COLORIMETRIC));
1243     setInputDataspace(ui::Dataspace::DISPLAY_P3);
1244     setInputRenderIntent(ui::RenderIntent::COLORIMETRIC);
1245     setHasWideColorGamut(true);
1246 
1247     getBestColorMode();
1248 
1249     ASSERT_EQ(ui::Dataspace::V0_SRGB, mOutDataspace);
1250     ASSERT_EQ(ui::ColorMode::SRGB, mOutColorMode);
1251     ASSERT_EQ(ui::RenderIntent::COLORIMETRIC, mOutRenderIntent);
1252 }
1253 
TEST_F(GetBestColorModeTest,DataspaceDisplayP3_ColorModeDisplayP3)1254 TEST_F(GetBestColorModeTest, DataspaceDisplayP3_ColorModeDisplayP3) {
1255     addHwcColorModesMapping(ui::ColorMode::DISPLAY_P3,
1256                             std::vector<ui::RenderIntent>(1, RenderIntent::COLORIMETRIC));
1257     addHwcColorModesMapping(ui::ColorMode::SRGB,
1258                             std::vector<ui::RenderIntent>(1, RenderIntent::COLORIMETRIC));
1259     addHwcColorModesMapping(ui::ColorMode::DISPLAY_BT2020,
1260                             std::vector<ui::RenderIntent>(1, RenderIntent::COLORIMETRIC));
1261     setInputDataspace(ui::Dataspace::DISPLAY_P3);
1262     setInputRenderIntent(ui::RenderIntent::COLORIMETRIC);
1263     setHasWideColorGamut(true);
1264 
1265     getBestColorMode();
1266 
1267     ASSERT_EQ(ui::Dataspace::DISPLAY_P3, mOutDataspace);
1268     ASSERT_EQ(ui::ColorMode::DISPLAY_P3, mOutColorMode);
1269     ASSERT_EQ(ui::RenderIntent::COLORIMETRIC, mOutRenderIntent);
1270 }
1271 
TEST_F(GetBestColorModeTest,DataspaceDisplayP3_ColorModeDISPLAY_BT2020)1272 TEST_F(GetBestColorModeTest, DataspaceDisplayP3_ColorModeDISPLAY_BT2020) {
1273     addHwcColorModesMapping(ui::ColorMode::DISPLAY_BT2020,
1274                             std::vector<ui::RenderIntent>(1, RenderIntent::COLORIMETRIC));
1275     setInputDataspace(ui::Dataspace::DISPLAY_P3);
1276     setInputRenderIntent(ui::RenderIntent::COLORIMETRIC);
1277     setHasWideColorGamut(true);
1278 
1279     getBestColorMode();
1280 
1281     ASSERT_EQ(ui::Dataspace::DISPLAY_BT2020, mOutDataspace);
1282     ASSERT_EQ(ui::ColorMode::DISPLAY_BT2020, mOutColorMode);
1283     ASSERT_EQ(ui::RenderIntent::COLORIMETRIC, mOutRenderIntent);
1284 }
1285 
1286 /* ------------------------------------------------------------------------
1287  * SurfaceFlinger::getDisplayNativePrimaries
1288  */
1289 
1290 class GetDisplayNativePrimaries : public DisplayTransactionTest {
1291 public:
1292     GetDisplayNativePrimaries();
1293     void populateDummyDisplayNativePrimaries(ui::DisplayPrimaries& primaries);
1294     void checkDummyDisplayNativePrimaries(const ui::DisplayPrimaries& primaries);
1295 
1296 private:
1297     static constexpr float mStartingTestValue = 1.0f;
1298 };
1299 
GetDisplayNativePrimaries()1300 GetDisplayNativePrimaries::GetDisplayNativePrimaries() {
1301     SimplePrimaryDisplayCase::Display::injectHwcDisplay(this);
1302     injectFakeNativeWindowSurfaceFactory();
1303 }
1304 
populateDummyDisplayNativePrimaries(ui::DisplayPrimaries & primaries)1305 void GetDisplayNativePrimaries::populateDummyDisplayNativePrimaries(
1306         ui::DisplayPrimaries& primaries) {
1307     float startingVal = mStartingTestValue;
1308     primaries.red.X = startingVal++;
1309     primaries.red.Y = startingVal++;
1310     primaries.red.Z = startingVal++;
1311     primaries.green.X = startingVal++;
1312     primaries.green.Y = startingVal++;
1313     primaries.green.Z = startingVal++;
1314     primaries.blue.X = startingVal++;
1315     primaries.blue.Y = startingVal++;
1316     primaries.blue.Z = startingVal++;
1317     primaries.white.X = startingVal++;
1318     primaries.white.Y = startingVal++;
1319     primaries.white.Z = startingVal++;
1320 }
1321 
checkDummyDisplayNativePrimaries(const ui::DisplayPrimaries & primaries)1322 void GetDisplayNativePrimaries::checkDummyDisplayNativePrimaries(
1323         const ui::DisplayPrimaries& primaries) {
1324     float startingVal = mStartingTestValue;
1325     EXPECT_EQ(primaries.red.X, startingVal++);
1326     EXPECT_EQ(primaries.red.Y, startingVal++);
1327     EXPECT_EQ(primaries.red.Z, startingVal++);
1328     EXPECT_EQ(primaries.green.X, startingVal++);
1329     EXPECT_EQ(primaries.green.Y, startingVal++);
1330     EXPECT_EQ(primaries.green.Z, startingVal++);
1331     EXPECT_EQ(primaries.blue.X, startingVal++);
1332     EXPECT_EQ(primaries.blue.Y, startingVal++);
1333     EXPECT_EQ(primaries.blue.Z, startingVal++);
1334     EXPECT_EQ(primaries.white.X, startingVal++);
1335     EXPECT_EQ(primaries.white.Y, startingVal++);
1336     EXPECT_EQ(primaries.white.Z, startingVal++);
1337 }
1338 
TEST_F(GetDisplayNativePrimaries,nullDisplayToken)1339 TEST_F(GetDisplayNativePrimaries, nullDisplayToken) {
1340     ui::DisplayPrimaries primaries;
1341     EXPECT_EQ(BAD_VALUE, mFlinger.getDisplayNativePrimaries(nullptr, primaries));
1342 }
1343 
TEST_F(GetDisplayNativePrimaries,internalDisplayWithPrimariesData)1344 TEST_F(GetDisplayNativePrimaries, internalDisplayWithPrimariesData) {
1345     auto injector = SimplePrimaryDisplayCase::Display::makeFakeExistingDisplayInjector(this);
1346     injector.inject();
1347     auto internalDisplayToken = injector.token();
1348 
1349     ui::DisplayPrimaries expectedPrimaries;
1350     populateDummyDisplayNativePrimaries(expectedPrimaries);
1351     mFlinger.setInternalDisplayPrimaries(expectedPrimaries);
1352 
1353     ui::DisplayPrimaries primaries;
1354     EXPECT_EQ(NO_ERROR, mFlinger.getDisplayNativePrimaries(internalDisplayToken, primaries));
1355 
1356     checkDummyDisplayNativePrimaries(primaries);
1357 }
1358 
TEST_F(GetDisplayNativePrimaries,notInternalDisplayToken)1359 TEST_F(GetDisplayNativePrimaries, notInternalDisplayToken) {
1360     sp<BBinder> notInternalDisplayToken = new BBinder();
1361 
1362     ui::DisplayPrimaries primaries;
1363     populateDummyDisplayNativePrimaries(primaries);
1364     EXPECT_EQ(BAD_VALUE, mFlinger.getDisplayNativePrimaries(notInternalDisplayToken, primaries));
1365 
1366     // Check primaries argument wasn't modified in case of failure
1367     checkDummyDisplayNativePrimaries(primaries);
1368 }
1369 
1370 /* ------------------------------------------------------------------------
1371  * SurfaceFlinger::setupNewDisplayDeviceInternal
1372  */
1373 
1374 class SetupNewDisplayDeviceInternalTest : public DisplayTransactionTest {
1375 public:
1376     template <typename T>
1377     void setupNewDisplayDeviceInternalTest();
1378 };
1379 
1380 template <typename Case>
setupNewDisplayDeviceInternalTest()1381 void SetupNewDisplayDeviceInternalTest::setupNewDisplayDeviceInternalTest() {
1382     const sp<BBinder> displayToken = new BBinder();
1383     const sp<compositionengine::mock::DisplaySurface> displaySurface =
1384             new compositionengine::mock::DisplaySurface();
1385     const sp<mock::GraphicBufferProducer> producer = new mock::GraphicBufferProducer();
1386 
1387     // --------------------------------------------------------------------
1388     // Preconditions
1389 
1390     // Wide color displays support is configured appropriately
1391     Case::WideColorSupport::injectConfigChange(this);
1392 
1393     // The display is setup with the HWC.
1394     Case::Display::injectHwcDisplay(this);
1395 
1396     // SurfaceFlinger will use a test-controlled factory for native window
1397     // surfaces.
1398     injectFakeNativeWindowSurfaceFactory();
1399 
1400     // --------------------------------------------------------------------
1401     // Call Expectations
1402 
1403     // Various native window calls will be made.
1404     Case::Display::setupNativeWindowSurfaceCreationCallExpectations(this);
1405     Case::Display::setupHwcGetActiveConfigCallExpectations(this);
1406     Case::WideColorSupport::setupComposerCallExpectations(this);
1407     Case::HdrSupport::setupComposerCallExpectations(this);
1408     Case::PerFrameMetadataSupport::setupComposerCallExpectations(this);
1409 
1410     // --------------------------------------------------------------------
1411     // Invocation
1412 
1413     DisplayDeviceState state;
1414     state.displayId = static_cast<bool>(Case::Display::VIRTUAL) ? std::nullopt
1415                                                                 : Case::Display::DISPLAY_ID::get();
1416     state.isSecure = static_cast<bool>(Case::Display::SECURE);
1417 
1418     auto device =
1419             mFlinger.setupNewDisplayDeviceInternal(displayToken, Case::Display::DISPLAY_ID::get(),
1420                                                    state, displaySurface, producer);
1421 
1422     // --------------------------------------------------------------------
1423     // Postconditions
1424 
1425     ASSERT_TRUE(device != nullptr);
1426     EXPECT_EQ(Case::Display::DISPLAY_ID::get(), device->getId());
1427     EXPECT_EQ(static_cast<bool>(Case::Display::VIRTUAL), device->isVirtual());
1428     EXPECT_EQ(static_cast<bool>(Case::Display::SECURE), device->isSecure());
1429     EXPECT_EQ(static_cast<bool>(Case::Display::PRIMARY), device->isPrimary());
1430     EXPECT_EQ(Case::Display::WIDTH, device->getWidth());
1431     EXPECT_EQ(Case::Display::HEIGHT, device->getHeight());
1432     EXPECT_EQ(Case::WideColorSupport::WIDE_COLOR_SUPPORTED, device->hasWideColorGamut());
1433     EXPECT_EQ(Case::HdrSupport::HDR10_PLUS_SUPPORTED, device->hasHDR10PlusSupport());
1434     EXPECT_EQ(Case::HdrSupport::HDR10_SUPPORTED, device->hasHDR10Support());
1435     EXPECT_EQ(Case::HdrSupport::HDR_HLG_SUPPORTED, device->hasHLGSupport());
1436     EXPECT_EQ(Case::HdrSupport::HDR_DOLBY_VISION_SUPPORTED, device->hasDolbyVisionSupport());
1437     // Note: This is not Case::Display::HWC_ACTIVE_CONFIG_ID as the ids are
1438     // remapped, and the test only ever sets up one config. If there were an error
1439     // looking up the remapped index, device->getActiveConfig() would be -1 instead.
1440     EXPECT_EQ(0, device->getActiveConfig());
1441     EXPECT_EQ(Case::PerFrameMetadataSupport::PER_FRAME_METADATA_KEYS,
1442               device->getSupportedPerFrameMetadata());
1443 }
1444 
TEST_F(SetupNewDisplayDeviceInternalTest,createSimplePrimaryDisplay)1445 TEST_F(SetupNewDisplayDeviceInternalTest, createSimplePrimaryDisplay) {
1446     setupNewDisplayDeviceInternalTest<SimplePrimaryDisplayCase>();
1447 }
1448 
TEST_F(SetupNewDisplayDeviceInternalTest,createSimpleExternalDisplay)1449 TEST_F(SetupNewDisplayDeviceInternalTest, createSimpleExternalDisplay) {
1450     setupNewDisplayDeviceInternalTest<SimpleExternalDisplayCase>();
1451 }
1452 
TEST_F(SetupNewDisplayDeviceInternalTest,createNonHwcVirtualDisplay)1453 TEST_F(SetupNewDisplayDeviceInternalTest, createNonHwcVirtualDisplay) {
1454     setupNewDisplayDeviceInternalTest<NonHwcVirtualDisplayCase>();
1455 }
1456 
TEST_F(SetupNewDisplayDeviceInternalTest,createHwcVirtualDisplay)1457 TEST_F(SetupNewDisplayDeviceInternalTest, createHwcVirtualDisplay) {
1458     using Case = HwcVirtualDisplayCase;
1459 
1460     // Insert display data so that the HWC thinks it created the virtual display.
1461     const auto displayId = Case::Display::DISPLAY_ID::get();
1462     ASSERT_TRUE(displayId);
1463     mFlinger.mutableHwcDisplayData().try_emplace(*displayId);
1464 
1465     setupNewDisplayDeviceInternalTest<Case>();
1466 }
1467 
TEST_F(SetupNewDisplayDeviceInternalTest,createWideColorP3Display)1468 TEST_F(SetupNewDisplayDeviceInternalTest, createWideColorP3Display) {
1469     setupNewDisplayDeviceInternalTest<WideColorP3ColorimetricDisplayCase>();
1470 }
1471 
TEST_F(SetupNewDisplayDeviceInternalTest,createHdr10PlusDisplay)1472 TEST_F(SetupNewDisplayDeviceInternalTest, createHdr10PlusDisplay) {
1473     setupNewDisplayDeviceInternalTest<Hdr10PlusDisplayCase>();
1474 }
1475 
TEST_F(SetupNewDisplayDeviceInternalTest,createHdr10Display)1476 TEST_F(SetupNewDisplayDeviceInternalTest, createHdr10Display) {
1477     setupNewDisplayDeviceInternalTest<Hdr10DisplayCase>();
1478 }
1479 
TEST_F(SetupNewDisplayDeviceInternalTest,createHdrHlgDisplay)1480 TEST_F(SetupNewDisplayDeviceInternalTest, createHdrHlgDisplay) {
1481     setupNewDisplayDeviceInternalTest<HdrHlgDisplayCase>();
1482 }
1483 
TEST_F(SetupNewDisplayDeviceInternalTest,createHdrDolbyVisionDisplay)1484 TEST_F(SetupNewDisplayDeviceInternalTest, createHdrDolbyVisionDisplay) {
1485     setupNewDisplayDeviceInternalTest<HdrDolbyVisionDisplayCase>();
1486 }
1487 
TEST_F(SetupNewDisplayDeviceInternalTest,createHdrSmpte2086DisplayCase)1488 TEST_F(SetupNewDisplayDeviceInternalTest, createHdrSmpte2086DisplayCase) {
1489     setupNewDisplayDeviceInternalTest<HdrSmpte2086DisplayCase>();
1490 }
1491 
TEST_F(SetupNewDisplayDeviceInternalTest,createHdrCta816_3_DisplayCase)1492 TEST_F(SetupNewDisplayDeviceInternalTest, createHdrCta816_3_DisplayCase) {
1493     setupNewDisplayDeviceInternalTest<HdrCta861_3_DisplayCase>();
1494 }
1495 
1496 /* ------------------------------------------------------------------------
1497  * SurfaceFlinger::handleTransactionLocked(eDisplayTransactionNeeded)
1498  */
1499 
1500 class HandleTransactionLockedTest : public DisplayTransactionTest {
1501 public:
1502     template <typename Case>
1503     void setupCommonPreconditions();
1504 
1505     template <typename Case, bool connected>
1506     static void expectHotplugReceived(mock::EventThread*);
1507 
1508     template <typename Case>
1509     void setupCommonCallExpectationsForConnectProcessing();
1510 
1511     template <typename Case>
1512     void setupCommonCallExpectationsForDisconnectProcessing();
1513 
1514     template <typename Case>
1515     void processesHotplugConnectCommon();
1516 
1517     template <typename Case>
1518     void ignoresHotplugConnectCommon();
1519 
1520     template <typename Case>
1521     void processesHotplugDisconnectCommon();
1522 
1523     template <typename Case>
1524     void verifyDisplayIsConnected(const sp<IBinder>& displayToken);
1525 
1526     template <typename Case>
1527     void verifyPhysicalDisplayIsConnected();
1528 
1529     void verifyDisplayIsNotConnected(const sp<IBinder>& displayToken);
1530 };
1531 
1532 template <typename Case>
setupCommonPreconditions()1533 void HandleTransactionLockedTest::setupCommonPreconditions() {
1534     // Wide color displays support is configured appropriately
1535     Case::WideColorSupport::injectConfigChange(this);
1536 
1537     // SurfaceFlinger will use a test-controlled factory for BufferQueues
1538     injectFakeBufferQueueFactory();
1539 
1540     // SurfaceFlinger will use a test-controlled factory for native window
1541     // surfaces.
1542     injectFakeNativeWindowSurfaceFactory();
1543 }
1544 
1545 template <typename Case, bool connected>
expectHotplugReceived(mock::EventThread * eventThread)1546 void HandleTransactionLockedTest::expectHotplugReceived(mock::EventThread* eventThread) {
1547     const auto convert = [](auto physicalDisplayId) {
1548         return std::make_optional(DisplayId{physicalDisplayId});
1549     };
1550 
1551     EXPECT_CALL(*eventThread,
1552                 onHotplugReceived(ResultOf(convert, Case::Display::DISPLAY_ID::get()), connected))
1553             .Times(1);
1554 }
1555 
1556 template <typename Case>
setupCommonCallExpectationsForConnectProcessing()1557 void HandleTransactionLockedTest::setupCommonCallExpectationsForConnectProcessing() {
1558     Case::Display::setupHwcHotplugCallExpectations(this);
1559 
1560     Case::Display::setupFramebufferConsumerBufferQueueCallExpectations(this);
1561     Case::Display::setupFramebufferProducerBufferQueueCallExpectations(this);
1562     Case::Display::setupNativeWindowSurfaceCreationCallExpectations(this);
1563     Case::Display::setupHwcGetActiveConfigCallExpectations(this);
1564 
1565     Case::WideColorSupport::setupComposerCallExpectations(this);
1566     Case::HdrSupport::setupComposerCallExpectations(this);
1567     Case::PerFrameMetadataSupport::setupComposerCallExpectations(this);
1568 
1569     EXPECT_CALL(*mSurfaceInterceptor, saveDisplayCreation(_)).Times(1);
1570     expectHotplugReceived<Case, true>(mEventThread);
1571     expectHotplugReceived<Case, true>(mSFEventThread);
1572 }
1573 
1574 template <typename Case>
setupCommonCallExpectationsForDisconnectProcessing()1575 void HandleTransactionLockedTest::setupCommonCallExpectationsForDisconnectProcessing() {
1576     EXPECT_CALL(*mSurfaceInterceptor, saveDisplayDeletion(_)).Times(1);
1577 
1578     expectHotplugReceived<Case, false>(mEventThread);
1579     expectHotplugReceived<Case, false>(mSFEventThread);
1580 }
1581 
1582 template <typename Case>
verifyDisplayIsConnected(const sp<IBinder> & displayToken)1583 void HandleTransactionLockedTest::verifyDisplayIsConnected(const sp<IBinder>& displayToken) {
1584     // The display device should have been set up in the list of displays.
1585     ASSERT_TRUE(hasDisplayDevice(displayToken));
1586     const auto& device = getDisplayDevice(displayToken);
1587     EXPECT_EQ(static_cast<bool>(Case::Display::SECURE), device->isSecure());
1588     EXPECT_EQ(static_cast<bool>(Case::Display::PRIMARY), device->isPrimary());
1589 
1590     // The display should have been set up in the current display state
1591     ASSERT_TRUE(hasCurrentDisplayState(displayToken));
1592     const auto& current = getCurrentDisplayState(displayToken);
1593     EXPECT_EQ(static_cast<bool>(Case::Display::VIRTUAL), current.isVirtual());
1594     EXPECT_EQ(static_cast<bool>(Case::Display::VIRTUAL) ? std::nullopt
1595                                                         : Case::Display::DISPLAY_ID::get(),
1596               current.displayId);
1597 
1598     // The display should have been set up in the drawing display state
1599     ASSERT_TRUE(hasDrawingDisplayState(displayToken));
1600     const auto& draw = getDrawingDisplayState(displayToken);
1601     EXPECT_EQ(static_cast<bool>(Case::Display::VIRTUAL), draw.isVirtual());
1602     EXPECT_EQ(static_cast<bool>(Case::Display::VIRTUAL) ? std::nullopt
1603                                                         : Case::Display::DISPLAY_ID::get(),
1604               draw.displayId);
1605 }
1606 
1607 template <typename Case>
verifyPhysicalDisplayIsConnected()1608 void HandleTransactionLockedTest::verifyPhysicalDisplayIsConnected() {
1609     // HWComposer should have an entry for the display
1610     EXPECT_TRUE(hasPhysicalHwcDisplay(Case::Display::HWC_DISPLAY_ID));
1611 
1612     // SF should have a display token.
1613     const auto displayId = Case::Display::DISPLAY_ID::get();
1614     ASSERT_TRUE(displayId);
1615     ASSERT_TRUE(mFlinger.mutablePhysicalDisplayTokens().count(*displayId) == 1);
1616     auto& displayToken = mFlinger.mutablePhysicalDisplayTokens()[*displayId];
1617 
1618     verifyDisplayIsConnected<Case>(displayToken);
1619 }
1620 
verifyDisplayIsNotConnected(const sp<IBinder> & displayToken)1621 void HandleTransactionLockedTest::verifyDisplayIsNotConnected(const sp<IBinder>& displayToken) {
1622     EXPECT_FALSE(hasDisplayDevice(displayToken));
1623     EXPECT_FALSE(hasCurrentDisplayState(displayToken));
1624     EXPECT_FALSE(hasDrawingDisplayState(displayToken));
1625 }
1626 
1627 template <typename Case>
processesHotplugConnectCommon()1628 void HandleTransactionLockedTest::processesHotplugConnectCommon() {
1629     // --------------------------------------------------------------------
1630     // Preconditions
1631 
1632     setupCommonPreconditions<Case>();
1633 
1634     // A hotplug connect event is enqueued for a display
1635     Case::Display::injectPendingHotplugEvent(this, HWC2::Connection::Connected);
1636 
1637     // --------------------------------------------------------------------
1638     // Call Expectations
1639 
1640     EXPECT_CALL(*mComposer, isUsingVrComposer()).WillOnce(Return(false));
1641 
1642     setupCommonCallExpectationsForConnectProcessing<Case>();
1643 
1644     // --------------------------------------------------------------------
1645     // Invocation
1646 
1647     mFlinger.handleTransactionLocked(eDisplayTransactionNeeded);
1648 
1649     // --------------------------------------------------------------------
1650     // Postconditions
1651 
1652     verifyPhysicalDisplayIsConnected<Case>();
1653 
1654     // --------------------------------------------------------------------
1655     // Cleanup conditions
1656 
1657     EXPECT_CALL(*mComposer,
1658                 setVsyncEnabled(Case::Display::HWC_DISPLAY_ID, IComposerClient::Vsync::DISABLE))
1659             .WillOnce(Return(Error::NONE));
1660     EXPECT_CALL(*mConsumer, consumerDisconnect()).WillOnce(Return(NO_ERROR));
1661 }
1662 
1663 template <typename Case>
ignoresHotplugConnectCommon()1664 void HandleTransactionLockedTest::ignoresHotplugConnectCommon() {
1665     // --------------------------------------------------------------------
1666     // Preconditions
1667 
1668     setupCommonPreconditions<Case>();
1669 
1670     // A hotplug connect event is enqueued for a display
1671     Case::Display::injectPendingHotplugEvent(this, HWC2::Connection::Connected);
1672 
1673     // --------------------------------------------------------------------
1674     // Invocation
1675 
1676     mFlinger.handleTransactionLocked(eDisplayTransactionNeeded);
1677 
1678     // --------------------------------------------------------------------
1679     // Postconditions
1680 
1681     // HWComposer should not have an entry for the display
1682     EXPECT_FALSE(hasPhysicalHwcDisplay(Case::Display::HWC_DISPLAY_ID));
1683 }
1684 
1685 template <typename Case>
processesHotplugDisconnectCommon()1686 void HandleTransactionLockedTest::processesHotplugDisconnectCommon() {
1687     // --------------------------------------------------------------------
1688     // Preconditions
1689 
1690     setupCommonPreconditions<Case>();
1691 
1692     // A hotplug disconnect event is enqueued for a display
1693     Case::Display::injectPendingHotplugEvent(this, HWC2::Connection::Disconnected);
1694 
1695     // The display is already completely set up.
1696     Case::Display::injectHwcDisplay(this);
1697     auto existing = Case::Display::makeFakeExistingDisplayInjector(this);
1698     existing.inject();
1699 
1700     // --------------------------------------------------------------------
1701     // Call Expectations
1702 
1703     EXPECT_CALL(*mComposer, isUsingVrComposer()).WillRepeatedly(Return(false));
1704     EXPECT_CALL(*mComposer, getDisplayIdentificationData(Case::Display::HWC_DISPLAY_ID, _, _))
1705             .Times(0);
1706 
1707     setupCommonCallExpectationsForDisconnectProcessing<Case>();
1708 
1709     // --------------------------------------------------------------------
1710     // Invocation
1711 
1712     mFlinger.handleTransactionLocked(eDisplayTransactionNeeded);
1713 
1714     // --------------------------------------------------------------------
1715     // Postconditions
1716 
1717     // HWComposer should not have an entry for the display
1718     EXPECT_FALSE(hasPhysicalHwcDisplay(Case::Display::HWC_DISPLAY_ID));
1719 
1720     // SF should not have a display token.
1721     const auto displayId = Case::Display::DISPLAY_ID::get();
1722     ASSERT_TRUE(displayId);
1723     ASSERT_TRUE(mFlinger.mutablePhysicalDisplayTokens().count(*displayId) == 0);
1724 
1725     // The existing token should have been removed
1726     verifyDisplayIsNotConnected(existing.token());
1727 }
1728 
TEST_F(HandleTransactionLockedTest,processesHotplugConnectPrimaryDisplay)1729 TEST_F(HandleTransactionLockedTest, processesHotplugConnectPrimaryDisplay) {
1730     processesHotplugConnectCommon<SimplePrimaryDisplayCase>();
1731 }
1732 
TEST_F(HandleTransactionLockedTest,processesHotplugConnectPrimaryDisplayWithExternalAlreadyConnected)1733 TEST_F(HandleTransactionLockedTest,
1734        processesHotplugConnectPrimaryDisplayWithExternalAlreadyConnected) {
1735     // Inject an external display.
1736     ExternalDisplayVariant::injectHwcDisplay(this);
1737 
1738     processesHotplugConnectCommon<SimplePrimaryDisplayCase>();
1739 }
1740 
TEST_F(HandleTransactionLockedTest,processesHotplugConnectExternalDisplay)1741 TEST_F(HandleTransactionLockedTest, processesHotplugConnectExternalDisplay) {
1742     // Inject a primary display.
1743     PrimaryDisplayVariant::injectHwcDisplay(this);
1744 
1745     processesHotplugConnectCommon<SimpleExternalDisplayCase>();
1746 }
1747 
TEST_F(HandleTransactionLockedTest,ignoresHotplugConnectIfPrimaryAndExternalAlreadyConnected)1748 TEST_F(HandleTransactionLockedTest, ignoresHotplugConnectIfPrimaryAndExternalAlreadyConnected) {
1749     // Inject both a primary and external display.
1750     PrimaryDisplayVariant::injectHwcDisplay(this);
1751     ExternalDisplayVariant::injectHwcDisplay(this);
1752 
1753     // TODO: This is an unnecessary call.
1754     EXPECT_CALL(*mComposer,
1755                 getDisplayIdentificationData(TertiaryDisplayVariant::HWC_DISPLAY_ID, _, _))
1756             .WillOnce(DoAll(SetArgPointee<1>(TertiaryDisplay::PORT),
1757                             SetArgPointee<2>(TertiaryDisplay::GET_IDENTIFICATION_DATA()),
1758                             Return(Error::NONE)));
1759 
1760     EXPECT_CALL(*mComposer, isUsingVrComposer()).WillRepeatedly(Return(false));
1761 
1762     ignoresHotplugConnectCommon<SimpleTertiaryDisplayCase>();
1763 }
1764 
TEST_F(HandleTransactionLockedTest,ignoresHotplugConnectIfExternalForVrComposer)1765 TEST_F(HandleTransactionLockedTest, ignoresHotplugConnectIfExternalForVrComposer) {
1766     // Inject a primary display.
1767     PrimaryDisplayVariant::injectHwcDisplay(this);
1768 
1769     EXPECT_CALL(*mComposer, isUsingVrComposer()).WillRepeatedly(Return(true));
1770 
1771     ignoresHotplugConnectCommon<SimpleExternalDisplayCase>();
1772 }
1773 
TEST_F(HandleTransactionLockedTest,processHotplugDisconnectPrimaryDisplay)1774 TEST_F(HandleTransactionLockedTest, processHotplugDisconnectPrimaryDisplay) {
1775     processesHotplugDisconnectCommon<SimplePrimaryDisplayCase>();
1776 }
1777 
TEST_F(HandleTransactionLockedTest,processHotplugDisconnectExternalDisplay)1778 TEST_F(HandleTransactionLockedTest, processHotplugDisconnectExternalDisplay) {
1779     processesHotplugDisconnectCommon<SimpleExternalDisplayCase>();
1780 }
1781 
TEST_F(HandleTransactionLockedTest,processesHotplugConnectThenDisconnectPrimary)1782 TEST_F(HandleTransactionLockedTest, processesHotplugConnectThenDisconnectPrimary) {
1783     using Case = SimplePrimaryDisplayCase;
1784 
1785     // --------------------------------------------------------------------
1786     // Preconditions
1787 
1788     setupCommonPreconditions<Case>();
1789 
1790     // A hotplug connect event is enqueued for a display
1791     Case::Display::injectPendingHotplugEvent(this, HWC2::Connection::Connected);
1792     // A hotplug disconnect event is also enqueued for the same display
1793     Case::Display::injectPendingHotplugEvent(this, HWC2::Connection::Disconnected);
1794 
1795     // --------------------------------------------------------------------
1796     // Call Expectations
1797 
1798     EXPECT_CALL(*mComposer, isUsingVrComposer()).WillRepeatedly(Return(false));
1799 
1800     setupCommonCallExpectationsForConnectProcessing<Case>();
1801     setupCommonCallExpectationsForDisconnectProcessing<Case>();
1802 
1803     EXPECT_CALL(*mComposer,
1804                 setVsyncEnabled(Case::Display::HWC_DISPLAY_ID, IComposerClient::Vsync::DISABLE))
1805             .WillOnce(Return(Error::NONE));
1806     EXPECT_CALL(*mConsumer, consumerDisconnect()).WillOnce(Return(NO_ERROR));
1807 
1808     // --------------------------------------------------------------------
1809     // Invocation
1810 
1811     mFlinger.handleTransactionLocked(eDisplayTransactionNeeded);
1812 
1813     // --------------------------------------------------------------------
1814     // Postconditions
1815 
1816     // HWComposer should not have an entry for the display
1817     EXPECT_FALSE(hasPhysicalHwcDisplay(Case::Display::HWC_DISPLAY_ID));
1818 
1819     // SF should not have a display token.
1820     const auto displayId = Case::Display::DISPLAY_ID::get();
1821     ASSERT_TRUE(displayId);
1822     ASSERT_TRUE(mFlinger.mutablePhysicalDisplayTokens().count(*displayId) == 0);
1823 }
1824 
TEST_F(HandleTransactionLockedTest,processesHotplugDisconnectThenConnectPrimary)1825 TEST_F(HandleTransactionLockedTest, processesHotplugDisconnectThenConnectPrimary) {
1826     using Case = SimplePrimaryDisplayCase;
1827 
1828     // --------------------------------------------------------------------
1829     // Preconditions
1830 
1831     setupCommonPreconditions<Case>();
1832 
1833     // The display is already completely set up.
1834     Case::Display::injectHwcDisplay(this);
1835     auto existing = Case::Display::makeFakeExistingDisplayInjector(this);
1836     existing.inject();
1837 
1838     // A hotplug disconnect event is enqueued for a display
1839     Case::Display::injectPendingHotplugEvent(this, HWC2::Connection::Disconnected);
1840     // A hotplug connect event is also enqueued for the same display
1841     Case::Display::injectPendingHotplugEvent(this, HWC2::Connection::Connected);
1842 
1843     // --------------------------------------------------------------------
1844     // Call Expectations
1845 
1846     EXPECT_CALL(*mComposer, isUsingVrComposer()).WillRepeatedly(Return(false));
1847 
1848     setupCommonCallExpectationsForConnectProcessing<Case>();
1849     setupCommonCallExpectationsForDisconnectProcessing<Case>();
1850 
1851     // --------------------------------------------------------------------
1852     // Invocation
1853 
1854     mFlinger.handleTransactionLocked(eDisplayTransactionNeeded);
1855 
1856     // --------------------------------------------------------------------
1857     // Postconditions
1858 
1859     // The existing token should have been removed
1860     verifyDisplayIsNotConnected(existing.token());
1861     const auto displayId = Case::Display::DISPLAY_ID::get();
1862     ASSERT_TRUE(displayId);
1863     ASSERT_TRUE(mFlinger.mutablePhysicalDisplayTokens().count(*displayId) == 1);
1864     EXPECT_NE(existing.token(), mFlinger.mutablePhysicalDisplayTokens()[*displayId]);
1865 
1866     // A new display should be connected in its place
1867 
1868     verifyPhysicalDisplayIsConnected<Case>();
1869 
1870     // --------------------------------------------------------------------
1871     // Cleanup conditions
1872 
1873     EXPECT_CALL(*mComposer,
1874                 setVsyncEnabled(Case::Display::HWC_DISPLAY_ID, IComposerClient::Vsync::DISABLE))
1875             .WillOnce(Return(Error::NONE));
1876     EXPECT_CALL(*mConsumer, consumerDisconnect()).WillOnce(Return(NO_ERROR));
1877 }
1878 
TEST_F(HandleTransactionLockedTest,processesVirtualDisplayAdded)1879 TEST_F(HandleTransactionLockedTest, processesVirtualDisplayAdded) {
1880     using Case = HwcVirtualDisplayCase;
1881 
1882     // --------------------------------------------------------------------
1883     // Preconditions
1884 
1885     // The HWC supports at least one virtual display
1886     injectMockComposer(1);
1887 
1888     setupCommonPreconditions<Case>();
1889 
1890     // A virtual display was added to the current state, and it has a
1891     // surface(producer)
1892     sp<BBinder> displayToken = new BBinder();
1893 
1894     DisplayDeviceState state;
1895     state.isSecure = static_cast<bool>(Case::Display::SECURE);
1896 
1897     sp<mock::GraphicBufferProducer> surface{new mock::GraphicBufferProducer()};
1898     state.surface = surface;
1899     mFlinger.mutableCurrentState().displays.add(displayToken, state);
1900 
1901     // --------------------------------------------------------------------
1902     // Call Expectations
1903 
1904     Case::Display::setupFramebufferConsumerBufferQueueCallExpectations(this);
1905     Case::Display::setupNativeWindowSurfaceCreationCallExpectations(this);
1906 
1907     EXPECT_CALL(*surface, query(NATIVE_WINDOW_WIDTH, _))
1908             .WillRepeatedly(DoAll(SetArgPointee<1>(Case::Display::WIDTH), Return(NO_ERROR)));
1909     EXPECT_CALL(*surface, query(NATIVE_WINDOW_HEIGHT, _))
1910             .WillRepeatedly(DoAll(SetArgPointee<1>(Case::Display::HEIGHT), Return(NO_ERROR)));
1911     EXPECT_CALL(*surface, query(NATIVE_WINDOW_FORMAT, _))
1912             .WillRepeatedly(DoAll(SetArgPointee<1>(DEFAULT_VIRTUAL_DISPLAY_SURFACE_FORMAT),
1913                                   Return(NO_ERROR)));
1914     EXPECT_CALL(*surface, query(NATIVE_WINDOW_CONSUMER_USAGE_BITS, _))
1915             .WillRepeatedly(DoAll(SetArgPointee<1>(0), Return(NO_ERROR)));
1916 
1917     EXPECT_CALL(*surface, setAsyncMode(true)).Times(1);
1918 
1919     EXPECT_CALL(*mProducer, connect(_, NATIVE_WINDOW_API_EGL, false, _)).Times(1);
1920     EXPECT_CALL(*mProducer, disconnect(_, _)).Times(1);
1921 
1922     Case::Display::setupHwcVirtualDisplayCreationCallExpectations(this);
1923     Case::WideColorSupport::setupComposerCallExpectations(this);
1924     Case::HdrSupport::setupComposerCallExpectations(this);
1925     Case::PerFrameMetadataSupport::setupComposerCallExpectations(this);
1926 
1927     // --------------------------------------------------------------------
1928     // Invocation
1929 
1930     mFlinger.handleTransactionLocked(eDisplayTransactionNeeded);
1931 
1932     // --------------------------------------------------------------------
1933     // Postconditions
1934 
1935     // The display device should have been set up in the list of displays.
1936     verifyDisplayIsConnected<Case>(displayToken);
1937 
1938     // --------------------------------------------------------------------
1939     // Cleanup conditions
1940 
1941     EXPECT_CALL(*mComposer, destroyVirtualDisplay(Case::Display::HWC_DISPLAY_ID))
1942             .WillOnce(Return(Error::NONE));
1943     EXPECT_CALL(*mConsumer, consumerDisconnect()).WillOnce(Return(NO_ERROR));
1944 
1945     // Cleanup
1946     mFlinger.mutableCurrentState().displays.removeItem(displayToken);
1947     mFlinger.mutableDrawingState().displays.removeItem(displayToken);
1948 }
1949 
TEST_F(HandleTransactionLockedTest,processesVirtualDisplayAddedWithNoSurface)1950 TEST_F(HandleTransactionLockedTest, processesVirtualDisplayAddedWithNoSurface) {
1951     using Case = HwcVirtualDisplayCase;
1952 
1953     // --------------------------------------------------------------------
1954     // Preconditions
1955 
1956     // The HWC supports at least one virtual display
1957     injectMockComposer(1);
1958 
1959     setupCommonPreconditions<Case>();
1960 
1961     // A virtual display was added to the current state, but it does not have a
1962     // surface.
1963     sp<BBinder> displayToken = new BBinder();
1964 
1965     DisplayDeviceState state;
1966     state.isSecure = static_cast<bool>(Case::Display::SECURE);
1967 
1968     mFlinger.mutableCurrentState().displays.add(displayToken, state);
1969 
1970     // --------------------------------------------------------------------
1971     // Call Expectations
1972 
1973     // --------------------------------------------------------------------
1974     // Invocation
1975 
1976     mFlinger.handleTransactionLocked(eDisplayTransactionNeeded);
1977 
1978     // --------------------------------------------------------------------
1979     // Postconditions
1980 
1981     // There will not be a display device set up.
1982     EXPECT_FALSE(hasDisplayDevice(displayToken));
1983 
1984     // The drawing display state will be set from the current display state.
1985     ASSERT_TRUE(hasDrawingDisplayState(displayToken));
1986     const auto& draw = getDrawingDisplayState(displayToken);
1987     EXPECT_EQ(static_cast<bool>(Case::Display::VIRTUAL), draw.isVirtual());
1988 }
1989 
TEST_F(HandleTransactionLockedTest,processesVirtualDisplayRemoval)1990 TEST_F(HandleTransactionLockedTest, processesVirtualDisplayRemoval) {
1991     using Case = HwcVirtualDisplayCase;
1992 
1993     // --------------------------------------------------------------------
1994     // Preconditions
1995 
1996     // A virtual display is set up but is removed from the current state.
1997     const auto displayId = Case::Display::DISPLAY_ID::get();
1998     ASSERT_TRUE(displayId);
1999     mFlinger.mutableHwcDisplayData().try_emplace(*displayId);
2000     Case::Display::injectHwcDisplay(this);
2001     auto existing = Case::Display::makeFakeExistingDisplayInjector(this);
2002     existing.inject();
2003     mFlinger.mutableCurrentState().displays.removeItem(existing.token());
2004 
2005     // --------------------------------------------------------------------
2006     // Call Expectations
2007 
2008     EXPECT_CALL(*mComposer, isUsingVrComposer()).WillRepeatedly(Return(false));
2009 
2010     // --------------------------------------------------------------------
2011     // Invocation
2012 
2013     mFlinger.handleTransactionLocked(eDisplayTransactionNeeded);
2014 
2015     // --------------------------------------------------------------------
2016     // Postconditions
2017 
2018     // The existing token should have been removed
2019     verifyDisplayIsNotConnected(existing.token());
2020 }
2021 
TEST_F(HandleTransactionLockedTest,processesDisplayLayerStackChanges)2022 TEST_F(HandleTransactionLockedTest, processesDisplayLayerStackChanges) {
2023     using Case = NonHwcVirtualDisplayCase;
2024 
2025     constexpr uint32_t oldLayerStack = 0u;
2026     constexpr uint32_t newLayerStack = 123u;
2027 
2028     // --------------------------------------------------------------------
2029     // Preconditions
2030 
2031     // A display is set up
2032     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
2033     display.inject();
2034 
2035     // There is a change to the layerStack state
2036     display.mutableDrawingDisplayState().layerStack = oldLayerStack;
2037     display.mutableCurrentDisplayState().layerStack = newLayerStack;
2038 
2039     // --------------------------------------------------------------------
2040     // Invocation
2041 
2042     mFlinger.handleTransactionLocked(eDisplayTransactionNeeded);
2043 
2044     // --------------------------------------------------------------------
2045     // Postconditions
2046 
2047     EXPECT_EQ(newLayerStack, display.mutableDisplayDevice()->getLayerStack());
2048 }
2049 
TEST_F(HandleTransactionLockedTest,processesDisplayTransformChanges)2050 TEST_F(HandleTransactionLockedTest, processesDisplayTransformChanges) {
2051     using Case = NonHwcVirtualDisplayCase;
2052 
2053     constexpr int oldTransform = 0;
2054     constexpr int newTransform = 2;
2055 
2056     // --------------------------------------------------------------------
2057     // Preconditions
2058 
2059     // A display is set up
2060     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
2061     display.inject();
2062 
2063     // There is a change to the orientation state
2064     display.mutableDrawingDisplayState().orientation = oldTransform;
2065     display.mutableCurrentDisplayState().orientation = newTransform;
2066 
2067     // --------------------------------------------------------------------
2068     // Invocation
2069 
2070     mFlinger.handleTransactionLocked(eDisplayTransactionNeeded);
2071 
2072     // --------------------------------------------------------------------
2073     // Postconditions
2074 
2075     EXPECT_EQ(newTransform, display.mutableDisplayDevice()->getOrientation());
2076 }
2077 
TEST_F(HandleTransactionLockedTest,processesDisplayViewportChanges)2078 TEST_F(HandleTransactionLockedTest, processesDisplayViewportChanges) {
2079     using Case = NonHwcVirtualDisplayCase;
2080 
2081     const Rect oldViewport(0, 0, 0, 0);
2082     const Rect newViewport(0, 0, 123, 456);
2083 
2084     // --------------------------------------------------------------------
2085     // Preconditions
2086 
2087     // A display is set up
2088     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
2089     display.inject();
2090 
2091     // There is a change to the viewport state
2092     display.mutableDrawingDisplayState().viewport = oldViewport;
2093     display.mutableCurrentDisplayState().viewport = newViewport;
2094 
2095     // --------------------------------------------------------------------
2096     // Invocation
2097 
2098     mFlinger.handleTransactionLocked(eDisplayTransactionNeeded);
2099 
2100     // --------------------------------------------------------------------
2101     // Postconditions
2102 
2103     EXPECT_EQ(newViewport, display.mutableDisplayDevice()->getViewport());
2104 }
2105 
TEST_F(HandleTransactionLockedTest,processesDisplayFrameChanges)2106 TEST_F(HandleTransactionLockedTest, processesDisplayFrameChanges) {
2107     using Case = NonHwcVirtualDisplayCase;
2108 
2109     const Rect oldFrame(0, 0, 0, 0);
2110     const Rect newFrame(0, 0, 123, 456);
2111 
2112     // --------------------------------------------------------------------
2113     // Preconditions
2114 
2115     // A display is set up
2116     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
2117     display.inject();
2118 
2119     // There is a change to the viewport state
2120     display.mutableDrawingDisplayState().frame = oldFrame;
2121     display.mutableCurrentDisplayState().frame = newFrame;
2122 
2123     // --------------------------------------------------------------------
2124     // Invocation
2125 
2126     mFlinger.handleTransactionLocked(eDisplayTransactionNeeded);
2127 
2128     // --------------------------------------------------------------------
2129     // Postconditions
2130 
2131     EXPECT_EQ(newFrame, display.mutableDisplayDevice()->getFrame());
2132 }
2133 
TEST_F(HandleTransactionLockedTest,processesDisplayWidthChanges)2134 TEST_F(HandleTransactionLockedTest, processesDisplayWidthChanges) {
2135     using Case = NonHwcVirtualDisplayCase;
2136 
2137     constexpr int oldWidth = 0;
2138     constexpr int oldHeight = 10;
2139     constexpr int newWidth = 123;
2140 
2141     // --------------------------------------------------------------------
2142     // Preconditions
2143 
2144     // A display is set up
2145     auto nativeWindow = new mock::NativeWindow();
2146     auto displaySurface = new compositionengine::mock::DisplaySurface();
2147     sp<GraphicBuffer> buf = new GraphicBuffer();
2148     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
2149     display.setNativeWindow(nativeWindow);
2150     display.setDisplaySurface(displaySurface);
2151     // Setup injection expections
2152     EXPECT_CALL(*nativeWindow, query(NATIVE_WINDOW_WIDTH, _))
2153             .WillOnce(DoAll(SetArgPointee<1>(oldWidth), Return(0)));
2154     EXPECT_CALL(*nativeWindow, query(NATIVE_WINDOW_HEIGHT, _))
2155             .WillOnce(DoAll(SetArgPointee<1>(oldHeight), Return(0)));
2156     EXPECT_CALL(*nativeWindow, perform(NATIVE_WINDOW_SET_BUFFERS_FORMAT)).Times(1);
2157     EXPECT_CALL(*nativeWindow, perform(NATIVE_WINDOW_API_CONNECT)).Times(1);
2158     EXPECT_CALL(*nativeWindow, perform(NATIVE_WINDOW_SET_USAGE64)).Times(1);
2159     EXPECT_CALL(*nativeWindow, perform(NATIVE_WINDOW_API_DISCONNECT)).Times(1);
2160     display.inject();
2161 
2162     // There is a change to the viewport state
2163     display.mutableDrawingDisplayState().width = oldWidth;
2164     display.mutableDrawingDisplayState().height = oldHeight;
2165     display.mutableCurrentDisplayState().width = newWidth;
2166     display.mutableCurrentDisplayState().height = oldHeight;
2167 
2168     // --------------------------------------------------------------------
2169     // Call Expectations
2170 
2171     EXPECT_CALL(*displaySurface, resizeBuffers(newWidth, oldHeight)).Times(1);
2172 
2173     // --------------------------------------------------------------------
2174     // Invocation
2175 
2176     mFlinger.handleTransactionLocked(eDisplayTransactionNeeded);
2177 }
2178 
TEST_F(HandleTransactionLockedTest,processesDisplayHeightChanges)2179 TEST_F(HandleTransactionLockedTest, processesDisplayHeightChanges) {
2180     using Case = NonHwcVirtualDisplayCase;
2181 
2182     constexpr int oldWidth = 0;
2183     constexpr int oldHeight = 10;
2184     constexpr int newHeight = 123;
2185 
2186     // --------------------------------------------------------------------
2187     // Preconditions
2188 
2189     // A display is set up
2190     auto nativeWindow = new mock::NativeWindow();
2191     auto displaySurface = new compositionengine::mock::DisplaySurface();
2192     sp<GraphicBuffer> buf = new GraphicBuffer();
2193     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
2194     display.setNativeWindow(nativeWindow);
2195     display.setDisplaySurface(displaySurface);
2196     // Setup injection expections
2197     EXPECT_CALL(*nativeWindow, query(NATIVE_WINDOW_WIDTH, _))
2198             .WillOnce(DoAll(SetArgPointee<1>(oldWidth), Return(0)));
2199     EXPECT_CALL(*nativeWindow, query(NATIVE_WINDOW_HEIGHT, _))
2200             .WillOnce(DoAll(SetArgPointee<1>(oldHeight), Return(0)));
2201     EXPECT_CALL(*nativeWindow, perform(NATIVE_WINDOW_SET_BUFFERS_FORMAT)).Times(1);
2202     EXPECT_CALL(*nativeWindow, perform(NATIVE_WINDOW_API_CONNECT)).Times(1);
2203     EXPECT_CALL(*nativeWindow, perform(NATIVE_WINDOW_SET_USAGE64)).Times(1);
2204     EXPECT_CALL(*nativeWindow, perform(NATIVE_WINDOW_API_DISCONNECT)).Times(1);
2205     display.inject();
2206 
2207     // There is a change to the viewport state
2208     display.mutableDrawingDisplayState().width = oldWidth;
2209     display.mutableDrawingDisplayState().height = oldHeight;
2210     display.mutableCurrentDisplayState().width = oldWidth;
2211     display.mutableCurrentDisplayState().height = newHeight;
2212 
2213     // --------------------------------------------------------------------
2214     // Call Expectations
2215 
2216     EXPECT_CALL(*displaySurface, resizeBuffers(oldWidth, newHeight)).Times(1);
2217 
2218     // --------------------------------------------------------------------
2219     // Invocation
2220 
2221     mFlinger.handleTransactionLocked(eDisplayTransactionNeeded);
2222 }
2223 
2224 /* ------------------------------------------------------------------------
2225  * SurfaceFlinger::setDisplayStateLocked
2226  */
2227 
TEST_F(DisplayTransactionTest,setDisplayStateLockedDoesNothingWithUnknownDisplay)2228 TEST_F(DisplayTransactionTest, setDisplayStateLockedDoesNothingWithUnknownDisplay) {
2229     // --------------------------------------------------------------------
2230     // Preconditions
2231 
2232     // We have an unknown display token not associated with a known display
2233     sp<BBinder> displayToken = new BBinder();
2234 
2235     // The requested display state references the unknown display.
2236     DisplayState state;
2237     state.what = DisplayState::eLayerStackChanged;
2238     state.token = displayToken;
2239     state.layerStack = 456;
2240 
2241     // --------------------------------------------------------------------
2242     // Invocation
2243 
2244     uint32_t flags = mFlinger.setDisplayStateLocked(state);
2245 
2246     // --------------------------------------------------------------------
2247     // Postconditions
2248 
2249     // The returned flags are empty
2250     EXPECT_EQ(0u, flags);
2251 
2252     // The display token still doesn't match anything known.
2253     EXPECT_FALSE(hasCurrentDisplayState(displayToken));
2254 }
2255 
TEST_F(DisplayTransactionTest,setDisplayStateLockedDoesNothingWhenNoChanges)2256 TEST_F(DisplayTransactionTest, setDisplayStateLockedDoesNothingWhenNoChanges) {
2257     using Case = SimplePrimaryDisplayCase;
2258 
2259     // --------------------------------------------------------------------
2260     // Preconditions
2261 
2262     // A display is already set up
2263     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
2264     display.inject();
2265 
2266     // No changes are made to the display
2267     DisplayState state;
2268     state.what = 0;
2269     state.token = display.token();
2270 
2271     // --------------------------------------------------------------------
2272     // Invocation
2273 
2274     uint32_t flags = mFlinger.setDisplayStateLocked(state);
2275 
2276     // --------------------------------------------------------------------
2277     // Postconditions
2278 
2279     // The returned flags are empty
2280     EXPECT_EQ(0u, flags);
2281 }
2282 
TEST_F(DisplayTransactionTest,setDisplayStateLockedDoesNothingIfSurfaceDidNotChange)2283 TEST_F(DisplayTransactionTest, setDisplayStateLockedDoesNothingIfSurfaceDidNotChange) {
2284     using Case = SimplePrimaryDisplayCase;
2285 
2286     // --------------------------------------------------------------------
2287     // Preconditions
2288 
2289     // A display is already set up
2290     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
2291     display.inject();
2292 
2293     // There is a surface that can be set.
2294     sp<mock::GraphicBufferProducer> surface = new mock::GraphicBufferProducer();
2295 
2296     // The current display state has the surface set
2297     display.mutableCurrentDisplayState().surface = surface;
2298 
2299     // The incoming request sets the same surface
2300     DisplayState state;
2301     state.what = DisplayState::eSurfaceChanged;
2302     state.token = display.token();
2303     state.surface = surface;
2304 
2305     // --------------------------------------------------------------------
2306     // Invocation
2307 
2308     uint32_t flags = mFlinger.setDisplayStateLocked(state);
2309 
2310     // --------------------------------------------------------------------
2311     // Postconditions
2312 
2313     // The returned flags are empty
2314     EXPECT_EQ(0u, flags);
2315 
2316     // The current display state is unchanged.
2317     EXPECT_EQ(surface.get(), display.getCurrentDisplayState().surface.get());
2318 }
2319 
TEST_F(DisplayTransactionTest,setDisplayStateLockedRequestsUpdateIfSurfaceChanged)2320 TEST_F(DisplayTransactionTest, setDisplayStateLockedRequestsUpdateIfSurfaceChanged) {
2321     using Case = SimplePrimaryDisplayCase;
2322 
2323     // --------------------------------------------------------------------
2324     // Preconditions
2325 
2326     // A display is already set up
2327     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
2328     display.inject();
2329 
2330     // There is a surface that can be set.
2331     sp<mock::GraphicBufferProducer> surface = new mock::GraphicBufferProducer();
2332 
2333     // The current display state does not have a surface
2334     display.mutableCurrentDisplayState().surface = nullptr;
2335 
2336     // The incoming request sets a surface
2337     DisplayState state;
2338     state.what = DisplayState::eSurfaceChanged;
2339     state.token = display.token();
2340     state.surface = surface;
2341 
2342     // --------------------------------------------------------------------
2343     // Invocation
2344 
2345     uint32_t flags = mFlinger.setDisplayStateLocked(state);
2346 
2347     // --------------------------------------------------------------------
2348     // Postconditions
2349 
2350     // The returned flags indicate a transaction is needed
2351     EXPECT_EQ(eDisplayTransactionNeeded, flags);
2352 
2353     // The current display layer stack state is set to the new value
2354     EXPECT_EQ(surface.get(), display.getCurrentDisplayState().surface.get());
2355 }
2356 
TEST_F(DisplayTransactionTest,setDisplayStateLockedDoesNothingIfLayerStackDidNotChange)2357 TEST_F(DisplayTransactionTest, setDisplayStateLockedDoesNothingIfLayerStackDidNotChange) {
2358     using Case = SimplePrimaryDisplayCase;
2359 
2360     // --------------------------------------------------------------------
2361     // Preconditions
2362 
2363     // A display is already set up
2364     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
2365     display.inject();
2366 
2367     // The display has a layer stack set
2368     display.mutableCurrentDisplayState().layerStack = 456u;
2369 
2370     // The incoming request sets the same layer stack
2371     DisplayState state;
2372     state.what = DisplayState::eLayerStackChanged;
2373     state.token = display.token();
2374     state.layerStack = 456u;
2375 
2376     // --------------------------------------------------------------------
2377     // Invocation
2378 
2379     uint32_t flags = mFlinger.setDisplayStateLocked(state);
2380 
2381     // --------------------------------------------------------------------
2382     // Postconditions
2383 
2384     // The returned flags are empty
2385     EXPECT_EQ(0u, flags);
2386 
2387     // The current display state is unchanged
2388     EXPECT_EQ(456u, display.getCurrentDisplayState().layerStack);
2389 }
2390 
TEST_F(DisplayTransactionTest,setDisplayStateLockedRequestsUpdateIfLayerStackChanged)2391 TEST_F(DisplayTransactionTest, setDisplayStateLockedRequestsUpdateIfLayerStackChanged) {
2392     using Case = SimplePrimaryDisplayCase;
2393 
2394     // --------------------------------------------------------------------
2395     // Preconditions
2396 
2397     // A display is set up
2398     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
2399     display.inject();
2400 
2401     // The display has a layer stack set
2402     display.mutableCurrentDisplayState().layerStack = 654u;
2403 
2404     // The incoming request sets a different layer stack
2405     DisplayState state;
2406     state.what = DisplayState::eLayerStackChanged;
2407     state.token = display.token();
2408     state.layerStack = 456u;
2409 
2410     // --------------------------------------------------------------------
2411     // Invocation
2412 
2413     uint32_t flags = mFlinger.setDisplayStateLocked(state);
2414 
2415     // --------------------------------------------------------------------
2416     // Postconditions
2417 
2418     // The returned flags indicate a transaction is needed
2419     EXPECT_EQ(eDisplayTransactionNeeded, flags);
2420 
2421     // The desired display state has been set to the new value.
2422     EXPECT_EQ(456u, display.getCurrentDisplayState().layerStack);
2423 }
2424 
TEST_F(DisplayTransactionTest,setDisplayStateLockedDoesNothingIfProjectionDidNotChange)2425 TEST_F(DisplayTransactionTest, setDisplayStateLockedDoesNothingIfProjectionDidNotChange) {
2426     using Case = SimplePrimaryDisplayCase;
2427     constexpr int initialOrientation = 180;
2428     const Rect initialFrame = {1, 2, 3, 4};
2429     const Rect initialViewport = {5, 6, 7, 8};
2430 
2431     // --------------------------------------------------------------------
2432     // Preconditions
2433 
2434     // A display is set up
2435     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
2436     display.inject();
2437 
2438     // The current display state projection state is all set
2439     display.mutableCurrentDisplayState().orientation = initialOrientation;
2440     display.mutableCurrentDisplayState().frame = initialFrame;
2441     display.mutableCurrentDisplayState().viewport = initialViewport;
2442 
2443     // The incoming request sets the same projection state
2444     DisplayState state;
2445     state.what = DisplayState::eDisplayProjectionChanged;
2446     state.token = display.token();
2447     state.orientation = initialOrientation;
2448     state.frame = initialFrame;
2449     state.viewport = initialViewport;
2450 
2451     // --------------------------------------------------------------------
2452     // Invocation
2453 
2454     uint32_t flags = mFlinger.setDisplayStateLocked(state);
2455 
2456     // --------------------------------------------------------------------
2457     // Postconditions
2458 
2459     // The returned flags are empty
2460     EXPECT_EQ(0u, flags);
2461 
2462     // The current display state is unchanged
2463     EXPECT_EQ(initialOrientation, display.getCurrentDisplayState().orientation);
2464 
2465     EXPECT_EQ(initialFrame, display.getCurrentDisplayState().frame);
2466     EXPECT_EQ(initialViewport, display.getCurrentDisplayState().viewport);
2467 }
2468 
TEST_F(DisplayTransactionTest,setDisplayStateLockedRequestsUpdateIfOrientationChanged)2469 TEST_F(DisplayTransactionTest, setDisplayStateLockedRequestsUpdateIfOrientationChanged) {
2470     using Case = SimplePrimaryDisplayCase;
2471     constexpr int initialOrientation = 90;
2472     constexpr int desiredOrientation = 180;
2473 
2474     // --------------------------------------------------------------------
2475     // Preconditions
2476 
2477     // A display is set up
2478     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
2479     display.inject();
2480 
2481     // The current display state has an orientation set
2482     display.mutableCurrentDisplayState().orientation = initialOrientation;
2483 
2484     // The incoming request sets a different orientation
2485     DisplayState state;
2486     state.what = DisplayState::eDisplayProjectionChanged;
2487     state.token = display.token();
2488     state.orientation = desiredOrientation;
2489 
2490     // --------------------------------------------------------------------
2491     // Invocation
2492 
2493     uint32_t flags = mFlinger.setDisplayStateLocked(state);
2494 
2495     // --------------------------------------------------------------------
2496     // Postconditions
2497 
2498     // The returned flags indicate a transaction is needed
2499     EXPECT_EQ(eDisplayTransactionNeeded, flags);
2500 
2501     // The current display state has the new value.
2502     EXPECT_EQ(desiredOrientation, display.getCurrentDisplayState().orientation);
2503 }
2504 
TEST_F(DisplayTransactionTest,setDisplayStateLockedRequestsUpdateIfFrameChanged)2505 TEST_F(DisplayTransactionTest, setDisplayStateLockedRequestsUpdateIfFrameChanged) {
2506     using Case = SimplePrimaryDisplayCase;
2507     const Rect initialFrame = {0, 0, 0, 0};
2508     const Rect desiredFrame = {5, 6, 7, 8};
2509 
2510     // --------------------------------------------------------------------
2511     // Preconditions
2512 
2513     // A display is set up
2514     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
2515     display.inject();
2516 
2517     // The current display state does not have a frame
2518     display.mutableCurrentDisplayState().frame = initialFrame;
2519 
2520     // The incoming request sets a frame
2521     DisplayState state;
2522     state.what = DisplayState::eDisplayProjectionChanged;
2523     state.token = display.token();
2524     state.frame = desiredFrame;
2525 
2526     // --------------------------------------------------------------------
2527     // Invocation
2528 
2529     uint32_t flags = mFlinger.setDisplayStateLocked(state);
2530 
2531     // --------------------------------------------------------------------
2532     // Postconditions
2533 
2534     // The returned flags indicate a transaction is needed
2535     EXPECT_EQ(eDisplayTransactionNeeded, flags);
2536 
2537     // The current display state has the new value.
2538     EXPECT_EQ(desiredFrame, display.getCurrentDisplayState().frame);
2539 }
2540 
TEST_F(DisplayTransactionTest,setDisplayStateLockedRequestsUpdateIfViewportChanged)2541 TEST_F(DisplayTransactionTest, setDisplayStateLockedRequestsUpdateIfViewportChanged) {
2542     using Case = SimplePrimaryDisplayCase;
2543     const Rect initialViewport = {0, 0, 0, 0};
2544     const Rect desiredViewport = {5, 6, 7, 8};
2545 
2546     // --------------------------------------------------------------------
2547     // Preconditions
2548 
2549     // A display is set up
2550     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
2551     display.inject();
2552 
2553     // The current display state does not have a viewport
2554     display.mutableCurrentDisplayState().viewport = initialViewport;
2555 
2556     // The incoming request sets a viewport
2557     DisplayState state;
2558     state.what = DisplayState::eDisplayProjectionChanged;
2559     state.token = display.token();
2560     state.viewport = desiredViewport;
2561 
2562     // --------------------------------------------------------------------
2563     // Invocation
2564 
2565     uint32_t flags = mFlinger.setDisplayStateLocked(state);
2566 
2567     // --------------------------------------------------------------------
2568     // Postconditions
2569 
2570     // The returned flags indicate a transaction is needed
2571     EXPECT_EQ(eDisplayTransactionNeeded, flags);
2572 
2573     // The current display state has the new value.
2574     EXPECT_EQ(desiredViewport, display.getCurrentDisplayState().viewport);
2575 }
2576 
TEST_F(DisplayTransactionTest,setDisplayStateLockedDoesNothingIfSizeDidNotChange)2577 TEST_F(DisplayTransactionTest, setDisplayStateLockedDoesNothingIfSizeDidNotChange) {
2578     using Case = SimplePrimaryDisplayCase;
2579     constexpr uint32_t initialWidth = 1024;
2580     constexpr uint32_t initialHeight = 768;
2581 
2582     // --------------------------------------------------------------------
2583     // Preconditions
2584 
2585     // A display is set up
2586     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
2587     display.inject();
2588 
2589     // The current display state has a size set
2590     display.mutableCurrentDisplayState().width = initialWidth;
2591     display.mutableCurrentDisplayState().height = initialHeight;
2592 
2593     // The incoming request sets the same display size
2594     DisplayState state;
2595     state.what = DisplayState::eDisplaySizeChanged;
2596     state.token = display.token();
2597     state.width = initialWidth;
2598     state.height = initialHeight;
2599 
2600     // --------------------------------------------------------------------
2601     // Invocation
2602 
2603     uint32_t flags = mFlinger.setDisplayStateLocked(state);
2604 
2605     // --------------------------------------------------------------------
2606     // Postconditions
2607 
2608     // The returned flags are empty
2609     EXPECT_EQ(0u, flags);
2610 
2611     // The current display state is unchanged
2612     EXPECT_EQ(initialWidth, display.getCurrentDisplayState().width);
2613     EXPECT_EQ(initialHeight, display.getCurrentDisplayState().height);
2614 }
2615 
TEST_F(DisplayTransactionTest,setDisplayStateLockedRequestsUpdateIfWidthChanged)2616 TEST_F(DisplayTransactionTest, setDisplayStateLockedRequestsUpdateIfWidthChanged) {
2617     using Case = SimplePrimaryDisplayCase;
2618     constexpr uint32_t initialWidth = 0;
2619     constexpr uint32_t desiredWidth = 1024;
2620 
2621     // --------------------------------------------------------------------
2622     // Preconditions
2623 
2624     // A display is set up
2625     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
2626     display.inject();
2627 
2628     // The display does not yet have a width
2629     display.mutableCurrentDisplayState().width = initialWidth;
2630 
2631     // The incoming request sets a display width
2632     DisplayState state;
2633     state.what = DisplayState::eDisplaySizeChanged;
2634     state.token = display.token();
2635     state.width = desiredWidth;
2636 
2637     // --------------------------------------------------------------------
2638     // Invocation
2639 
2640     uint32_t flags = mFlinger.setDisplayStateLocked(state);
2641 
2642     // --------------------------------------------------------------------
2643     // Postconditions
2644 
2645     // The returned flags indicate a transaction is needed
2646     EXPECT_EQ(eDisplayTransactionNeeded, flags);
2647 
2648     // The current display state has the new value.
2649     EXPECT_EQ(desiredWidth, display.getCurrentDisplayState().width);
2650 }
2651 
TEST_F(DisplayTransactionTest,setDisplayStateLockedRequestsUpdateIfHeightChanged)2652 TEST_F(DisplayTransactionTest, setDisplayStateLockedRequestsUpdateIfHeightChanged) {
2653     using Case = SimplePrimaryDisplayCase;
2654     constexpr uint32_t initialHeight = 0;
2655     constexpr uint32_t desiredHeight = 768;
2656 
2657     // --------------------------------------------------------------------
2658     // Preconditions
2659 
2660     // A display is set up
2661     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
2662     display.inject();
2663 
2664     // The display does not yet have a height
2665     display.mutableCurrentDisplayState().height = initialHeight;
2666 
2667     // The incoming request sets a display height
2668     DisplayState state;
2669     state.what = DisplayState::eDisplaySizeChanged;
2670     state.token = display.token();
2671     state.height = desiredHeight;
2672 
2673     // --------------------------------------------------------------------
2674     // Invocation
2675 
2676     uint32_t flags = mFlinger.setDisplayStateLocked(state);
2677 
2678     // --------------------------------------------------------------------
2679     // Postconditions
2680 
2681     // The returned flags indicate a transaction is needed
2682     EXPECT_EQ(eDisplayTransactionNeeded, flags);
2683 
2684     // The current display state has the new value.
2685     EXPECT_EQ(desiredHeight, display.getCurrentDisplayState().height);
2686 }
2687 
2688 /* ------------------------------------------------------------------------
2689  * SurfaceFlinger::onInitializeDisplays
2690  */
2691 
TEST_F(DisplayTransactionTest,onInitializeDisplaysSetsUpPrimaryDisplay)2692 TEST_F(DisplayTransactionTest, onInitializeDisplaysSetsUpPrimaryDisplay) {
2693     using Case = SimplePrimaryDisplayCase;
2694 
2695     // --------------------------------------------------------------------
2696     // Preconditions
2697 
2698     // A primary display is set up
2699     Case::Display::injectHwcDisplay(this);
2700     auto primaryDisplay = Case::Display::makeFakeExistingDisplayInjector(this);
2701     primaryDisplay.inject();
2702 
2703     // --------------------------------------------------------------------
2704     // Call Expectations
2705 
2706     // We expect the surface interceptor to possibly be used, but we treat it as
2707     // disabled since it is called as a side effect rather than directly by this
2708     // function.
2709     EXPECT_CALL(*mSurfaceInterceptor, isEnabled()).WillOnce(Return(false));
2710 
2711     // We expect a call to get the active display config.
2712     Case::Display::setupHwcGetActiveConfigCallExpectations(this);
2713 
2714     // We expect invalidate() to be invoked once to trigger display transaction
2715     // processing.
2716     EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);
2717 
2718     EXPECT_CALL(*mPrimaryDispSync, expectedPresentTime()).WillRepeatedly(Return(0));
2719 
2720     // --------------------------------------------------------------------
2721     // Invocation
2722 
2723     mFlinger.onInitializeDisplays();
2724 
2725     // --------------------------------------------------------------------
2726     // Postconditions
2727 
2728     // The primary display should have a current state
2729     ASSERT_TRUE(hasCurrentDisplayState(primaryDisplay.token()));
2730     const auto& primaryDisplayState = getCurrentDisplayState(primaryDisplay.token());
2731     // The layer stack state should be set to zero
2732     EXPECT_EQ(0u, primaryDisplayState.layerStack);
2733     // The orientation state should be set to zero
2734     EXPECT_EQ(0, primaryDisplayState.orientation);
2735 
2736     // The frame state should be set to INVALID
2737     EXPECT_EQ(Rect::INVALID_RECT, primaryDisplayState.frame);
2738 
2739     // The viewport state should be set to INVALID
2740     EXPECT_EQ(Rect::INVALID_RECT, primaryDisplayState.viewport);
2741 
2742     // The width and height should both be zero
2743     EXPECT_EQ(0u, primaryDisplayState.width);
2744     EXPECT_EQ(0u, primaryDisplayState.height);
2745 
2746     // The display should be set to HWC_POWER_MODE_NORMAL
2747     ASSERT_TRUE(hasDisplayDevice(primaryDisplay.token()));
2748     auto displayDevice = primaryDisplay.mutableDisplayDevice();
2749     EXPECT_EQ(HWC_POWER_MODE_NORMAL, displayDevice->getPowerMode());
2750 
2751     // The display refresh period should be set in the frame tracker.
2752     FrameStats stats;
2753     mFlinger.getAnimFrameTracker().getStats(&stats);
2754     EXPECT_EQ(DEFAULT_REFRESH_RATE, stats.refreshPeriodNano);
2755 
2756     // The display transaction needed flag should be set.
2757     EXPECT_TRUE(hasTransactionFlagSet(eDisplayTransactionNeeded));
2758 
2759     // The compositor timing should be set to default values
2760     const auto& compositorTiming = mFlinger.getCompositorTiming();
2761     EXPECT_EQ(-DEFAULT_REFRESH_RATE, compositorTiming.deadline);
2762     EXPECT_EQ(DEFAULT_REFRESH_RATE, compositorTiming.interval);
2763     EXPECT_EQ(DEFAULT_REFRESH_RATE, compositorTiming.presentLatency);
2764 }
2765 
2766 /* ------------------------------------------------------------------------
2767  * SurfaceFlinger::setPowerModeInternal
2768  */
2769 
2770 // Used when we simulate a display that supports doze.
2771 template <typename Display>
2772 struct DozeIsSupportedVariant {
2773     static constexpr bool DOZE_SUPPORTED = true;
2774     static constexpr IComposerClient::PowerMode ACTUAL_POWER_MODE_FOR_DOZE =
2775             IComposerClient::PowerMode::DOZE;
2776     static constexpr IComposerClient::PowerMode ACTUAL_POWER_MODE_FOR_DOZE_SUSPEND =
2777             IComposerClient::PowerMode::DOZE_SUSPEND;
2778 
setupComposerCallExpectationsandroid::__anon968546880111::DozeIsSupportedVariant2779     static void setupComposerCallExpectations(DisplayTransactionTest* test) {
2780         EXPECT_CALL(*test->mComposer, getDisplayCapabilities(Display::HWC_DISPLAY_ID, _))
2781                 .WillOnce(DoAll(SetArgPointee<1>(std::vector<Hwc2::DisplayCapability>(
2782                                         {Hwc2::DisplayCapability::DOZE})),
2783                                 Return(Error::NONE)));
2784     }
2785 };
2786 
2787 template <typename Display>
2788 // Used when we simulate a display that does not support doze.
2789 struct DozeNotSupportedVariant {
2790     static constexpr bool DOZE_SUPPORTED = false;
2791     static constexpr IComposerClient::PowerMode ACTUAL_POWER_MODE_FOR_DOZE =
2792             IComposerClient::PowerMode::ON;
2793     static constexpr IComposerClient::PowerMode ACTUAL_POWER_MODE_FOR_DOZE_SUSPEND =
2794             IComposerClient::PowerMode::ON;
2795 
setupComposerCallExpectationsandroid::__anon968546880111::DozeNotSupportedVariant2796     static void setupComposerCallExpectations(DisplayTransactionTest* test) {
2797         EXPECT_CALL(*test->mComposer, getDisplayCapabilities(Display::HWC_DISPLAY_ID, _))
2798                 .WillOnce(DoAll(SetArgPointee<1>(std::vector<Hwc2::DisplayCapability>({})),
2799                                 Return(Error::NONE)));
2800     }
2801 };
2802 
2803 struct EventThreadBaseSupportedVariant {
setupEventAndEventControlThreadNoCallExpectationsandroid::__anon968546880111::EventThreadBaseSupportedVariant2804     static void setupEventAndEventControlThreadNoCallExpectations(DisplayTransactionTest* test) {
2805         // The event control thread should not be notified.
2806         EXPECT_CALL(*test->mEventControlThread, setVsyncEnabled(_)).Times(0);
2807 
2808         // The event thread should not be notified.
2809         EXPECT_CALL(*test->mEventThread, onScreenReleased()).Times(0);
2810         EXPECT_CALL(*test->mEventThread, onScreenAcquired()).Times(0);
2811     }
2812 };
2813 
2814 struct EventThreadNotSupportedVariant : public EventThreadBaseSupportedVariant {
setupAcquireAndEnableVsyncCallExpectationsandroid::__anon968546880111::EventThreadNotSupportedVariant2815     static void setupAcquireAndEnableVsyncCallExpectations(DisplayTransactionTest* test) {
2816         // These calls are only expected for the primary display.
2817 
2818         // Instead expect no calls.
2819         setupEventAndEventControlThreadNoCallExpectations(test);
2820     }
2821 
setupReleaseAndDisableVsyncCallExpectationsandroid::__anon968546880111::EventThreadNotSupportedVariant2822     static void setupReleaseAndDisableVsyncCallExpectations(DisplayTransactionTest* test) {
2823         // These calls are only expected for the primary display.
2824 
2825         // Instead expect no calls.
2826         setupEventAndEventControlThreadNoCallExpectations(test);
2827     }
2828 };
2829 
2830 struct EventThreadIsSupportedVariant : public EventThreadBaseSupportedVariant {
setupAcquireAndEnableVsyncCallExpectationsandroid::__anon968546880111::EventThreadIsSupportedVariant2831     static void setupAcquireAndEnableVsyncCallExpectations(DisplayTransactionTest* test) {
2832         // The event control thread should be notified to enable vsyncs
2833         EXPECT_CALL(*test->mEventControlThread, setVsyncEnabled(true)).Times(1);
2834 
2835         // The event thread should be notified that the screen was acquired.
2836         EXPECT_CALL(*test->mEventThread, onScreenAcquired()).Times(1);
2837     }
2838 
setupReleaseAndDisableVsyncCallExpectationsandroid::__anon968546880111::EventThreadIsSupportedVariant2839     static void setupReleaseAndDisableVsyncCallExpectations(DisplayTransactionTest* test) {
2840         // There should be a call to setVsyncEnabled(false)
2841         EXPECT_CALL(*test->mEventControlThread, setVsyncEnabled(false)).Times(1);
2842 
2843         // The event thread should not be notified that the screen was released.
2844         EXPECT_CALL(*test->mEventThread, onScreenReleased()).Times(1);
2845     }
2846 };
2847 
2848 struct DispSyncIsSupportedVariant {
setupBeginResyncCallExpectationsandroid::__anon968546880111::DispSyncIsSupportedVariant2849     static void setupBeginResyncCallExpectations(DisplayTransactionTest* test) {
2850         EXPECT_CALL(*test->mPrimaryDispSync, setPeriod(DEFAULT_REFRESH_RATE)).Times(1);
2851         EXPECT_CALL(*test->mPrimaryDispSync, beginResync()).Times(1);
2852     }
2853 
setupEndResyncCallExpectationsandroid::__anon968546880111::DispSyncIsSupportedVariant2854     static void setupEndResyncCallExpectations(DisplayTransactionTest* test) {
2855         EXPECT_CALL(*test->mPrimaryDispSync, endResync()).Times(1);
2856     }
2857 };
2858 
2859 struct DispSyncNotSupportedVariant {
setupBeginResyncCallExpectationsandroid::__anon968546880111::DispSyncNotSupportedVariant2860     static void setupBeginResyncCallExpectations(DisplayTransactionTest* /* test */) {}
2861 
setupEndResyncCallExpectationsandroid::__anon968546880111::DispSyncNotSupportedVariant2862     static void setupEndResyncCallExpectations(DisplayTransactionTest* /* test */) {}
2863 };
2864 
2865 // --------------------------------------------------------------------
2866 // Note:
2867 //
2868 // There are a large number of transitions we could test, however we only test a
2869 // selected subset which provides complete test coverage of the implementation.
2870 // --------------------------------------------------------------------
2871 
2872 template <int initialPowerMode, int targetPowerMode>
2873 struct TransitionVariantCommon {
2874     static constexpr auto INITIAL_POWER_MODE = initialPowerMode;
2875     static constexpr auto TARGET_POWER_MODE = targetPowerMode;
2876 
verifyPostconditionsandroid::__anon968546880111::TransitionVariantCommon2877     static void verifyPostconditions(DisplayTransactionTest*) {}
2878 };
2879 
2880 struct TransitionOffToOnVariant
2881       : public TransitionVariantCommon<HWC_POWER_MODE_OFF, HWC_POWER_MODE_NORMAL> {
2882     template <typename Case>
setupCallExpectationsandroid::__anon968546880111::TransitionOffToOnVariant2883     static void setupCallExpectations(DisplayTransactionTest* test) {
2884         Case::setupComposerCallExpectations(test, IComposerClient::PowerMode::ON);
2885         Case::EventThread::setupAcquireAndEnableVsyncCallExpectations(test);
2886         Case::DispSync::setupBeginResyncCallExpectations(test);
2887         Case::setupRepaintEverythingCallExpectations(test);
2888     }
2889 
verifyPostconditionsandroid::__anon968546880111::TransitionOffToOnVariant2890     static void verifyPostconditions(DisplayTransactionTest* test) {
2891         EXPECT_TRUE(test->mFlinger.getVisibleRegionsDirty());
2892         EXPECT_TRUE(test->mFlinger.getHasPoweredOff());
2893     }
2894 };
2895 
2896 struct TransitionOffToDozeSuspendVariant
2897       : public TransitionVariantCommon<HWC_POWER_MODE_OFF, HWC_POWER_MODE_DOZE_SUSPEND> {
2898     template <typename Case>
setupCallExpectationsandroid::__anon968546880111::TransitionOffToDozeSuspendVariant2899     static void setupCallExpectations(DisplayTransactionTest* test) {
2900         Case::setupComposerCallExpectations(test, Case::Doze::ACTUAL_POWER_MODE_FOR_DOZE_SUSPEND);
2901         Case::EventThread::setupEventAndEventControlThreadNoCallExpectations(test);
2902         Case::setupRepaintEverythingCallExpectations(test);
2903     }
2904 
verifyPostconditionsandroid::__anon968546880111::TransitionOffToDozeSuspendVariant2905     static void verifyPostconditions(DisplayTransactionTest* test) {
2906         EXPECT_TRUE(test->mFlinger.getVisibleRegionsDirty());
2907         EXPECT_TRUE(test->mFlinger.getHasPoweredOff());
2908     }
2909 };
2910 
2911 struct TransitionOnToOffVariant
2912       : public TransitionVariantCommon<HWC_POWER_MODE_NORMAL, HWC_POWER_MODE_OFF> {
2913     template <typename Case>
setupCallExpectationsandroid::__anon968546880111::TransitionOnToOffVariant2914     static void setupCallExpectations(DisplayTransactionTest* test) {
2915         Case::EventThread::setupReleaseAndDisableVsyncCallExpectations(test);
2916         Case::DispSync::setupEndResyncCallExpectations(test);
2917         Case::setupComposerCallExpectations(test, IComposerClient::PowerMode::OFF);
2918     }
2919 
verifyPostconditionsandroid::__anon968546880111::TransitionOnToOffVariant2920     static void verifyPostconditions(DisplayTransactionTest* test) {
2921         EXPECT_TRUE(test->mFlinger.getVisibleRegionsDirty());
2922     }
2923 };
2924 
2925 struct TransitionDozeSuspendToOffVariant
2926       : public TransitionVariantCommon<HWC_POWER_MODE_DOZE_SUSPEND, HWC_POWER_MODE_OFF> {
2927     template <typename Case>
setupCallExpectationsandroid::__anon968546880111::TransitionDozeSuspendToOffVariant2928     static void setupCallExpectations(DisplayTransactionTest* test) {
2929         Case::EventThread::setupEventAndEventControlThreadNoCallExpectations(test);
2930         Case::setupComposerCallExpectations(test, IComposerClient::PowerMode::OFF);
2931     }
2932 
verifyPostconditionsandroid::__anon968546880111::TransitionDozeSuspendToOffVariant2933     static void verifyPostconditions(DisplayTransactionTest* test) {
2934         EXPECT_TRUE(test->mFlinger.getVisibleRegionsDirty());
2935     }
2936 };
2937 
2938 struct TransitionOnToDozeVariant
2939       : public TransitionVariantCommon<HWC_POWER_MODE_NORMAL, HWC_POWER_MODE_DOZE> {
2940     template <typename Case>
setupCallExpectationsandroid::__anon968546880111::TransitionOnToDozeVariant2941     static void setupCallExpectations(DisplayTransactionTest* test) {
2942         Case::EventThread::setupEventAndEventControlThreadNoCallExpectations(test);
2943         Case::setupComposerCallExpectations(test, Case::Doze::ACTUAL_POWER_MODE_FOR_DOZE);
2944     }
2945 };
2946 
2947 struct TransitionDozeSuspendToDozeVariant
2948       : public TransitionVariantCommon<HWC_POWER_MODE_DOZE_SUSPEND, HWC_POWER_MODE_DOZE> {
2949     template <typename Case>
setupCallExpectationsandroid::__anon968546880111::TransitionDozeSuspendToDozeVariant2950     static void setupCallExpectations(DisplayTransactionTest* test) {
2951         Case::EventThread::setupAcquireAndEnableVsyncCallExpectations(test);
2952         Case::DispSync::setupBeginResyncCallExpectations(test);
2953         Case::setupComposerCallExpectations(test, Case::Doze::ACTUAL_POWER_MODE_FOR_DOZE);
2954     }
2955 };
2956 
2957 struct TransitionDozeToOnVariant
2958       : public TransitionVariantCommon<HWC_POWER_MODE_DOZE, HWC_POWER_MODE_NORMAL> {
2959     template <typename Case>
setupCallExpectationsandroid::__anon968546880111::TransitionDozeToOnVariant2960     static void setupCallExpectations(DisplayTransactionTest* test) {
2961         Case::EventThread::setupEventAndEventControlThreadNoCallExpectations(test);
2962         Case::setupComposerCallExpectations(test, IComposerClient::PowerMode::ON);
2963     }
2964 };
2965 
2966 struct TransitionDozeSuspendToOnVariant
2967       : public TransitionVariantCommon<HWC_POWER_MODE_DOZE_SUSPEND, HWC_POWER_MODE_NORMAL> {
2968     template <typename Case>
setupCallExpectationsandroid::__anon968546880111::TransitionDozeSuspendToOnVariant2969     static void setupCallExpectations(DisplayTransactionTest* test) {
2970         Case::EventThread::setupAcquireAndEnableVsyncCallExpectations(test);
2971         Case::DispSync::setupBeginResyncCallExpectations(test);
2972         Case::setupComposerCallExpectations(test, IComposerClient::PowerMode::ON);
2973     }
2974 };
2975 
2976 struct TransitionOnToDozeSuspendVariant
2977       : public TransitionVariantCommon<HWC_POWER_MODE_NORMAL, HWC_POWER_MODE_DOZE_SUSPEND> {
2978     template <typename Case>
setupCallExpectationsandroid::__anon968546880111::TransitionOnToDozeSuspendVariant2979     static void setupCallExpectations(DisplayTransactionTest* test) {
2980         Case::EventThread::setupReleaseAndDisableVsyncCallExpectations(test);
2981         Case::DispSync::setupEndResyncCallExpectations(test);
2982         Case::setupComposerCallExpectations(test, Case::Doze::ACTUAL_POWER_MODE_FOR_DOZE_SUSPEND);
2983     }
2984 };
2985 
2986 struct TransitionOnToUnknownVariant
2987       : public TransitionVariantCommon<HWC_POWER_MODE_NORMAL, HWC_POWER_MODE_LEET> {
2988     template <typename Case>
setupCallExpectationsandroid::__anon968546880111::TransitionOnToUnknownVariant2989     static void setupCallExpectations(DisplayTransactionTest* test) {
2990         Case::EventThread::setupEventAndEventControlThreadNoCallExpectations(test);
2991         Case::setupNoComposerPowerModeCallExpectations(test);
2992     }
2993 };
2994 
2995 // --------------------------------------------------------------------
2996 // Note:
2997 //
2998 // Rather than testing the cartesian product of of
2999 // DozeIsSupported/DozeNotSupported with all other options, we use one for one
3000 // display type, and the other for another display type.
3001 // --------------------------------------------------------------------
3002 
3003 template <typename DisplayVariant, typename DozeVariant, typename EventThreadVariant,
3004           typename DispSyncVariant, typename TransitionVariant>
3005 struct DisplayPowerCase {
3006     using Display = DisplayVariant;
3007     using Doze = DozeVariant;
3008     using EventThread = EventThreadVariant;
3009     using DispSync = DispSyncVariant;
3010     using Transition = TransitionVariant;
3011 
injectDisplayWithInitialPowerModeandroid::__anon968546880111::DisplayPowerCase3012     static auto injectDisplayWithInitialPowerMode(DisplayTransactionTest* test, int mode) {
3013         Display::injectHwcDisplayWithNoDefaultCapabilities(test);
3014         auto display = Display::makeFakeExistingDisplayInjector(test);
3015         display.inject();
3016         display.mutableDisplayDevice()->setPowerMode(mode);
3017         return display;
3018     }
3019 
setInitialPrimaryHWVsyncEnabledandroid::__anon968546880111::DisplayPowerCase3020     static void setInitialPrimaryHWVsyncEnabled(DisplayTransactionTest* test, bool enabled) {
3021         test->mScheduler->mutablePrimaryHWVsyncEnabled() = enabled;
3022     }
3023 
setupRepaintEverythingCallExpectationsandroid::__anon968546880111::DisplayPowerCase3024     static void setupRepaintEverythingCallExpectations(DisplayTransactionTest* test) {
3025         EXPECT_CALL(*test->mMessageQueue, invalidate()).Times(1);
3026     }
3027 
setupSurfaceInterceptorCallExpectationsandroid::__anon968546880111::DisplayPowerCase3028     static void setupSurfaceInterceptorCallExpectations(DisplayTransactionTest* test, int mode) {
3029         EXPECT_CALL(*test->mSurfaceInterceptor, isEnabled()).WillOnce(Return(true));
3030         EXPECT_CALL(*test->mSurfaceInterceptor, savePowerModeUpdate(_, mode)).Times(1);
3031     }
3032 
setupComposerCallExpectationsandroid::__anon968546880111::DisplayPowerCase3033     static void setupComposerCallExpectations(DisplayTransactionTest* test,
3034                                               IComposerClient::PowerMode mode) {
3035         // Any calls to get the active config will return a default value.
3036         EXPECT_CALL(*test->mComposer, getActiveConfig(Display::HWC_DISPLAY_ID, _))
3037                 .WillRepeatedly(DoAll(SetArgPointee<1>(Display::HWC_ACTIVE_CONFIG_ID),
3038                                       Return(Error::NONE)));
3039 
3040         // Any calls to get whether the display supports dozing will return the value set by the
3041         // policy variant.
3042         EXPECT_CALL(*test->mComposer, getDozeSupport(Display::HWC_DISPLAY_ID, _))
3043                 .WillRepeatedly(DoAll(SetArgPointee<1>(Doze::DOZE_SUPPORTED), Return(Error::NONE)));
3044 
3045         EXPECT_CALL(*test->mComposer, setPowerMode(Display::HWC_DISPLAY_ID, mode)).Times(1);
3046     }
3047 
setupNoComposerPowerModeCallExpectationsandroid::__anon968546880111::DisplayPowerCase3048     static void setupNoComposerPowerModeCallExpectations(DisplayTransactionTest* test) {
3049         EXPECT_CALL(*test->mComposer, setPowerMode(Display::HWC_DISPLAY_ID, _)).Times(0);
3050     }
3051 };
3052 
3053 // A sample configuration for the primary display.
3054 // In addition to having event thread support, we emulate doze support.
3055 template <typename TransitionVariant>
3056 using PrimaryDisplayPowerCase =
3057         DisplayPowerCase<PrimaryDisplayVariant, DozeIsSupportedVariant<PrimaryDisplayVariant>,
3058                          EventThreadIsSupportedVariant, DispSyncIsSupportedVariant,
3059                          TransitionVariant>;
3060 
3061 // A sample configuration for the external display.
3062 // In addition to not having event thread support, we emulate not having doze
3063 // support.
3064 template <typename TransitionVariant>
3065 using ExternalDisplayPowerCase =
3066         DisplayPowerCase<ExternalDisplayVariant, DozeNotSupportedVariant<ExternalDisplayVariant>,
3067                          EventThreadNotSupportedVariant, DispSyncNotSupportedVariant,
3068                          TransitionVariant>;
3069 
3070 class SetPowerModeInternalTest : public DisplayTransactionTest {
3071 public:
3072     template <typename Case>
3073     void transitionDisplayCommon();
3074 };
3075 
3076 template <int PowerMode>
3077 struct PowerModeInitialVSyncEnabled : public std::false_type {};
3078 
3079 template <>
3080 struct PowerModeInitialVSyncEnabled<HWC_POWER_MODE_NORMAL> : public std::true_type {};
3081 
3082 template <>
3083 struct PowerModeInitialVSyncEnabled<HWC_POWER_MODE_DOZE> : public std::true_type {};
3084 
3085 template <typename Case>
transitionDisplayCommon()3086 void SetPowerModeInternalTest::transitionDisplayCommon() {
3087     // --------------------------------------------------------------------
3088     // Preconditions
3089 
3090     Case::Doze::setupComposerCallExpectations(this);
3091     auto display =
3092             Case::injectDisplayWithInitialPowerMode(this, Case::Transition::INITIAL_POWER_MODE);
3093     Case::setInitialPrimaryHWVsyncEnabled(this,
3094                                           PowerModeInitialVSyncEnabled<
3095                                                   Case::Transition::INITIAL_POWER_MODE>::value);
3096 
3097     // --------------------------------------------------------------------
3098     // Call Expectations
3099 
3100     Case::setupSurfaceInterceptorCallExpectations(this, Case::Transition::TARGET_POWER_MODE);
3101     Case::Transition::template setupCallExpectations<Case>(this);
3102 
3103     // --------------------------------------------------------------------
3104     // Invocation
3105 
3106     mFlinger.setPowerModeInternal(display.mutableDisplayDevice(),
3107                                   Case::Transition::TARGET_POWER_MODE);
3108 
3109     // --------------------------------------------------------------------
3110     // Postconditions
3111 
3112     Case::Transition::verifyPostconditions(this);
3113 }
3114 
TEST_F(SetPowerModeInternalTest,setPowerModeInternalDoesNothingIfNoChange)3115 TEST_F(SetPowerModeInternalTest, setPowerModeInternalDoesNothingIfNoChange) {
3116     using Case = SimplePrimaryDisplayCase;
3117 
3118     // --------------------------------------------------------------------
3119     // Preconditions
3120 
3121     // A primary display device is set up
3122     Case::Display::injectHwcDisplay(this);
3123     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
3124     display.inject();
3125 
3126     // The display is already set to HWC_POWER_MODE_NORMAL
3127     display.mutableDisplayDevice()->setPowerMode(HWC_POWER_MODE_NORMAL);
3128 
3129     // --------------------------------------------------------------------
3130     // Invocation
3131 
3132     mFlinger.setPowerModeInternal(display.mutableDisplayDevice(), HWC_POWER_MODE_NORMAL);
3133 
3134     // --------------------------------------------------------------------
3135     // Postconditions
3136 
3137     EXPECT_EQ(HWC_POWER_MODE_NORMAL, display.mutableDisplayDevice()->getPowerMode());
3138 }
3139 
TEST_F(SetPowerModeInternalTest,setPowerModeInternalDoesNothingIfVirtualDisplay)3140 TEST_F(SetPowerModeInternalTest, setPowerModeInternalDoesNothingIfVirtualDisplay) {
3141     using Case = HwcVirtualDisplayCase;
3142 
3143     // --------------------------------------------------------------------
3144     // Preconditions
3145 
3146     // Insert display data so that the HWC thinks it created the virtual display.
3147     const auto displayId = Case::Display::DISPLAY_ID::get();
3148     ASSERT_TRUE(displayId);
3149     mFlinger.mutableHwcDisplayData().try_emplace(*displayId);
3150 
3151     // A virtual display device is set up
3152     Case::Display::injectHwcDisplay(this);
3153     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
3154     display.inject();
3155 
3156     // The display is set to HWC_POWER_MODE_NORMAL
3157     getDisplayDevice(display.token())->setPowerMode(HWC_POWER_MODE_NORMAL);
3158 
3159     // --------------------------------------------------------------------
3160     // Invocation
3161 
3162     mFlinger.setPowerModeInternal(display.mutableDisplayDevice(), HWC_POWER_MODE_OFF);
3163 
3164     // --------------------------------------------------------------------
3165     // Postconditions
3166 
3167     EXPECT_EQ(HWC_POWER_MODE_NORMAL, display.mutableDisplayDevice()->getPowerMode());
3168 }
3169 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromOffToOnPrimaryDisplay)3170 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromOffToOnPrimaryDisplay) {
3171     transitionDisplayCommon<PrimaryDisplayPowerCase<TransitionOffToOnVariant>>();
3172 }
3173 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromOffToDozeSuspendPrimaryDisplay)3174 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromOffToDozeSuspendPrimaryDisplay) {
3175     transitionDisplayCommon<PrimaryDisplayPowerCase<TransitionOffToDozeSuspendVariant>>();
3176 }
3177 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromOnToOffPrimaryDisplay)3178 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromOnToOffPrimaryDisplay) {
3179     transitionDisplayCommon<PrimaryDisplayPowerCase<TransitionOnToOffVariant>>();
3180 }
3181 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromDozeSuspendToOffPrimaryDisplay)3182 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromDozeSuspendToOffPrimaryDisplay) {
3183     transitionDisplayCommon<PrimaryDisplayPowerCase<TransitionDozeSuspendToOffVariant>>();
3184 }
3185 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromOnToDozePrimaryDisplay)3186 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromOnToDozePrimaryDisplay) {
3187     transitionDisplayCommon<PrimaryDisplayPowerCase<TransitionOnToDozeVariant>>();
3188 }
3189 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromDozeSuspendToDozePrimaryDisplay)3190 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromDozeSuspendToDozePrimaryDisplay) {
3191     transitionDisplayCommon<PrimaryDisplayPowerCase<TransitionDozeSuspendToDozeVariant>>();
3192 }
3193 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromDozeToOnPrimaryDisplay)3194 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromDozeToOnPrimaryDisplay) {
3195     transitionDisplayCommon<PrimaryDisplayPowerCase<TransitionDozeToOnVariant>>();
3196 }
3197 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromDozeSuspendToOnPrimaryDisplay)3198 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromDozeSuspendToOnPrimaryDisplay) {
3199     transitionDisplayCommon<PrimaryDisplayPowerCase<TransitionDozeSuspendToOnVariant>>();
3200 }
3201 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromOnToDozeSuspendPrimaryDisplay)3202 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromOnToDozeSuspendPrimaryDisplay) {
3203     transitionDisplayCommon<PrimaryDisplayPowerCase<TransitionOnToDozeSuspendVariant>>();
3204 }
3205 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromOnToUnknownPrimaryDisplay)3206 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromOnToUnknownPrimaryDisplay) {
3207     transitionDisplayCommon<PrimaryDisplayPowerCase<TransitionOnToUnknownVariant>>();
3208 }
3209 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromOffToOnExternalDisplay)3210 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromOffToOnExternalDisplay) {
3211     transitionDisplayCommon<ExternalDisplayPowerCase<TransitionOffToOnVariant>>();
3212 }
3213 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromOffToDozeSuspendExternalDisplay)3214 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromOffToDozeSuspendExternalDisplay) {
3215     transitionDisplayCommon<ExternalDisplayPowerCase<TransitionOffToDozeSuspendVariant>>();
3216 }
3217 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromOnToOffExternalDisplay)3218 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromOnToOffExternalDisplay) {
3219     transitionDisplayCommon<ExternalDisplayPowerCase<TransitionOnToOffVariant>>();
3220 }
3221 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromDozeSuspendToOffExternalDisplay)3222 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromDozeSuspendToOffExternalDisplay) {
3223     transitionDisplayCommon<ExternalDisplayPowerCase<TransitionDozeSuspendToOffVariant>>();
3224 }
3225 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromOnToDozeExternalDisplay)3226 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromOnToDozeExternalDisplay) {
3227     transitionDisplayCommon<ExternalDisplayPowerCase<TransitionOnToDozeVariant>>();
3228 }
3229 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromDozeSuspendToDozeExternalDisplay)3230 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromDozeSuspendToDozeExternalDisplay) {
3231     transitionDisplayCommon<ExternalDisplayPowerCase<TransitionDozeSuspendToDozeVariant>>();
3232 }
3233 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromDozeToOnExternalDisplay)3234 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromDozeToOnExternalDisplay) {
3235     transitionDisplayCommon<ExternalDisplayPowerCase<TransitionDozeToOnVariant>>();
3236 }
3237 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromDozeSuspendToOnExternalDisplay)3238 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromDozeSuspendToOnExternalDisplay) {
3239     transitionDisplayCommon<ExternalDisplayPowerCase<TransitionDozeSuspendToOnVariant>>();
3240 }
3241 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromOnToDozeSuspendExternalDisplay)3242 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromOnToDozeSuspendExternalDisplay) {
3243     transitionDisplayCommon<ExternalDisplayPowerCase<TransitionOnToDozeSuspendVariant>>();
3244 }
3245 
TEST_F(SetPowerModeInternalTest,transitionsDisplayFromOnToUnknownExternalDisplay)3246 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromOnToUnknownExternalDisplay) {
3247     transitionDisplayCommon<ExternalDisplayPowerCase<TransitionOnToUnknownVariant>>();
3248 }
3249 
3250 } // namespace
3251 } // namespace android
3252