1 /*
2  * Copyright (C) 2017 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 // TODO(b/129481165): remove the #pragma below and fix conversion issues
18 #pragma clang diagnostic push
19 #pragma clang diagnostic ignored "-Wconversion"
20 
21 //#define LOG_NDEBUG 0
22 #undef LOG_TAG
23 #define LOG_TAG "FakeComposer"
24 
25 #include "FakeComposerClient.h"
26 
27 #include <gui/SurfaceComposerClient.h>
28 
29 #include <log/log.h>
30 
31 #include <gtest/gtest.h>
32 
33 #include <inttypes.h>
34 #include <time.h>
35 #include <algorithm>
36 #include <condition_variable>
37 #include <iostream>
38 #include <mutex>
39 #include <set>
40 #include <thread>
41 
42 constexpr Config NULL_DISPLAY_CONFIG = static_cast<Config>(0);
43 
44 using namespace sftest;
45 
46 using android::Condition;
47 using android::Mutex;
48 
49 using Clock = std::chrono::steady_clock;
50 using TimePoint = std::chrono::time_point<Clock>;
51 
52 namespace {
53 
54 // Internal state of a layer in the HWC API.
55 class LayerImpl {
56 public:
57     LayerImpl() = default;
58 
59     bool mValid = true;
60     RenderState mRenderState;
61     uint32_t mZ = 0;
62 };
63 
64 // Struct for storing per frame rectangle state. Contains the render
65 // state shared to the test case. Basically a snapshot and a subset of
66 // LayerImpl sufficient to re-create the pixels of a layer for the
67 // frame.
68 struct FrameRect {
69 public:
FrameRect__anon4c64c0100111::FrameRect70     FrameRect(Layer layer_, const RenderState& state, uint32_t z_)
71           : layer(layer_), renderState(state), z(z_) {}
72 
73     const Layer layer;
74     const RenderState renderState;
75     const uint32_t z;
76 };
77 
78 // Collection of FrameRects forming one rendered frame. Could store
79 // related fences and other data in the future.
80 class Frame {
81 public:
82     Frame() = default;
83     std::vector<std::unique_ptr<FrameRect>> rectangles;
84 };
85 
86 class DelayedEventGenerator {
87 public:
DelayedEventGenerator(std::function<void ()> onTimerExpired)88     explicit DelayedEventGenerator(std::function<void()> onTimerExpired)
89           : mOnTimerExpired(onTimerExpired), mThread([this]() { loop(); }) {}
90 
~DelayedEventGenerator()91     ~DelayedEventGenerator() {
92         ALOGI("DelayedEventGenerator exiting.");
93         {
94             std::unique_lock<std::mutex> lock(mMutex);
95             mRunning = false;
96             mWakeups.clear();
97             mCondition.notify_one();
98         }
99         mThread.join();
100         ALOGI("DelayedEventGenerator exited.");
101     }
102 
wakeAfter(std::chrono::nanoseconds waitTime)103     void wakeAfter(std::chrono::nanoseconds waitTime) {
104         std::unique_lock<std::mutex> lock(mMutex);
105         mWakeups.insert(Clock::now() + waitTime);
106         mCondition.notify_one();
107     }
108 
109 private:
loop()110     void loop() {
111         while (true) {
112             // Lock scope
113             {
114                 std::unique_lock<std::mutex> lock(mMutex);
115                 mCondition.wait(lock, [this]() { return !mRunning || !mWakeups.empty(); });
116                 if (!mRunning && mWakeups.empty()) {
117                     // This thread should only exit once the destructor has been called and all
118                     // wakeups have been processed
119                     return;
120                 }
121 
122                 // At this point, mWakeups will not be empty
123 
124                 TimePoint target = *(mWakeups.begin());
125                 auto status = mCondition.wait_until(lock, target);
126                 while (status == std::cv_status::no_timeout) {
127                     // This was either a spurious wakeup or another wakeup was added, so grab the
128                     // oldest point and wait again
129                     target = *(mWakeups.begin());
130                     status = mCondition.wait_until(lock, target);
131                 }
132 
133                 // status must have been timeout, so we can finally clear this point
134                 mWakeups.erase(target);
135             }
136             // Callback *without* locks!
137             mOnTimerExpired();
138         }
139     }
140 
141     std::function<void()> mOnTimerExpired;
142     std::thread mThread;
143     std::mutex mMutex;
144     std::condition_variable mCondition;
145     bool mRunning = true;
146     std::set<TimePoint> mWakeups;
147 };
148 
149 } // namespace
150 
FakeComposerClient()151 FakeComposerClient::FakeComposerClient()
152       : mEventCallback(nullptr),
153         mEventCallback_2_4(nullptr),
154         mCurrentConfig(NULL_DISPLAY_CONFIG),
155         mVsyncEnabled(false),
156         mLayers(),
157         mDelayedEventGenerator(
158                 std::make_unique<DelayedEventGenerator>([this]() { this->requestVSync(); })),
159         mSurfaceComposer(nullptr) {}
160 
~FakeComposerClient()161 FakeComposerClient::~FakeComposerClient() {}
162 
hasCapability(hwc2_capability_t)163 bool FakeComposerClient::hasCapability(hwc2_capability_t /*capability*/) {
164     return false;
165 }
166 
dumpDebugInfo()167 std::string FakeComposerClient::dumpDebugInfo() {
168     return {};
169 }
170 
registerEventCallback(EventCallback * callback)171 void FakeComposerClient::registerEventCallback(EventCallback* callback) {
172     ALOGV("registerEventCallback");
173     LOG_FATAL_IF(mEventCallback_2_4 != nullptr,
174                  "already registered using registerEventCallback_2_4");
175 
176     mEventCallback = callback;
177     if (mEventCallback) {
178         mEventCallback->onHotplug(PRIMARY_DISPLAY, IComposerCallback::Connection::CONNECTED);
179     }
180 }
181 
unregisterEventCallback()182 void FakeComposerClient::unregisterEventCallback() {
183     ALOGV("unregisterEventCallback");
184     mEventCallback = nullptr;
185 }
186 
hotplugDisplay(Display display,IComposerCallback::Connection state)187 void FakeComposerClient::hotplugDisplay(Display display, IComposerCallback::Connection state) {
188     if (mEventCallback) {
189         mEventCallback->onHotplug(display, state);
190     } else if (mEventCallback_2_4) {
191         mEventCallback_2_4->onHotplug(display, state);
192     }
193 }
194 
refreshDisplay(Display display)195 void FakeComposerClient::refreshDisplay(Display display) {
196     if (mEventCallback) {
197         mEventCallback->onRefresh(display);
198     } else if (mEventCallback_2_4) {
199         mEventCallback_2_4->onRefresh(display);
200     }
201 }
202 
getMaxVirtualDisplayCount()203 uint32_t FakeComposerClient::getMaxVirtualDisplayCount() {
204     ALOGV("getMaxVirtualDisplayCount");
205     return 1;
206 }
207 
createVirtualDisplay(uint32_t,uint32_t,V1_0::PixelFormat *,Display *)208 V2_1::Error FakeComposerClient::createVirtualDisplay(uint32_t /*width*/, uint32_t /*height*/,
209                                                      V1_0::PixelFormat* /*format*/,
210                                                      Display* /*outDisplay*/) {
211     ALOGV("createVirtualDisplay");
212     return V2_1::Error::NONE;
213 }
214 
destroyVirtualDisplay(Display)215 V2_1::Error FakeComposerClient::destroyVirtualDisplay(Display /*display*/) {
216     ALOGV("destroyVirtualDisplay");
217     return V2_1::Error::NONE;
218 }
219 
createLayer(Display,Layer * outLayer)220 V2_1::Error FakeComposerClient::createLayer(Display /*display*/, Layer* outLayer) {
221     ALOGV("createLayer");
222     *outLayer = mLayers.size();
223     auto newLayer = std::make_unique<LayerImpl>();
224     mLayers.push_back(std::move(newLayer));
225     return V2_1::Error::NONE;
226 }
227 
destroyLayer(Display,Layer layer)228 V2_1::Error FakeComposerClient::destroyLayer(Display /*display*/, Layer layer) {
229     ALOGV("destroyLayer");
230     mLayers[layer]->mValid = false;
231     return V2_1::Error::NONE;
232 }
233 
getActiveConfig(Display display,Config * outConfig)234 V2_1::Error FakeComposerClient::getActiveConfig(Display display, Config* outConfig) {
235     ALOGV("getActiveConfig");
236     if (mMockHal) {
237         return mMockHal->getActiveConfig(display, outConfig);
238     }
239 
240     // TODO Assert outConfig != nullptr
241 
242     // TODO This is my reading of the
243     // IComposerClient::getActiveConfig, but returning BAD_CONFIG
244     // seems to not fit SurfaceFlinger plans. See version 2 below.
245     // if (mCurrentConfig == NULL_DISPLAY_CONFIG) {
246     //     return V2_1::Error::BAD_CONFIG;
247     // }
248     //*outConfig = mCurrentConfig;
249     *outConfig = 1; // Very special config for you my friend
250     return V2_1::Error::NONE;
251 }
252 
getClientTargetSupport(Display,uint32_t,uint32_t,V1_0::PixelFormat,V1_0::Dataspace)253 V2_1::Error FakeComposerClient::getClientTargetSupport(Display /*display*/, uint32_t /*width*/,
254                                                        uint32_t /*height*/,
255                                                        V1_0::PixelFormat /*format*/,
256                                                        V1_0::Dataspace /*dataspace*/) {
257     ALOGV("getClientTargetSupport");
258     return V2_1::Error::NONE;
259 }
260 
getColorModes(Display,hidl_vec<V1_0::ColorMode> *)261 V2_1::Error FakeComposerClient::getColorModes(Display /*display*/,
262                                               hidl_vec<V1_0::ColorMode>* /*outModes*/) {
263     ALOGV("getColorModes");
264     return V2_1::Error::NONE;
265 }
266 
getDisplayAttribute(Display display,Config config,V2_1::IComposerClient::Attribute attribute,int32_t * outValue)267 V2_1::Error FakeComposerClient::getDisplayAttribute(Display display, Config config,
268                                                     V2_1::IComposerClient::Attribute attribute,
269                                                     int32_t* outValue) {
270     auto tmpError =
271             getDisplayAttribute_2_4(display, config,
272                                     static_cast<IComposerClient::Attribute>(attribute), outValue);
273     return static_cast<V2_1::Error>(tmpError);
274 }
275 
getDisplayConfigs(Display display,hidl_vec<Config> * outConfigs)276 V2_1::Error FakeComposerClient::getDisplayConfigs(Display display, hidl_vec<Config>* outConfigs) {
277     ALOGV("getDisplayConfigs");
278     if (mMockHal) {
279         return mMockHal->getDisplayConfigs(display, outConfigs);
280     }
281 
282     // TODO assert display == 1, outConfigs != nullptr
283 
284     outConfigs->resize(1);
285     (*outConfigs)[0] = 1;
286 
287     return V2_1::Error::NONE;
288 }
289 
getDisplayName(Display,hidl_string *)290 V2_1::Error FakeComposerClient::getDisplayName(Display /*display*/, hidl_string* /*outName*/) {
291     ALOGV("getDisplayName");
292     return V2_1::Error::NONE;
293 }
294 
getDisplayType(Display,IComposerClient::DisplayType * outType)295 V2_1::Error FakeComposerClient::getDisplayType(Display /*display*/,
296                                                IComposerClient::DisplayType* outType) {
297     ALOGV("getDisplayType");
298     // TODO: This setting nothing on the output had no effect on initial trials. Is first display
299     // assumed to be physical?
300     *outType = static_cast<IComposerClient::DisplayType>(HWC2_DISPLAY_TYPE_PHYSICAL);
301     return V2_1::Error::NONE;
302 }
303 
getDozeSupport(Display,bool *)304 V2_1::Error FakeComposerClient::getDozeSupport(Display /*display*/, bool* /*outSupport*/) {
305     ALOGV("getDozeSupport");
306     return V2_1::Error::NONE;
307 }
308 
getHdrCapabilities(Display,hidl_vec<V1_0::Hdr> *,float *,float *,float *)309 V2_1::Error FakeComposerClient::getHdrCapabilities(Display /*display*/,
310                                                    hidl_vec<V1_0::Hdr>* /*outTypes*/,
311                                                    float* /*outMaxLuminance*/,
312                                                    float* /*outMaxAverageLuminance*/,
313                                                    float* /*outMinLuminance*/) {
314     ALOGV("getHdrCapabilities");
315     return V2_1::Error::NONE;
316 }
317 
setActiveConfig(Display display,Config config)318 V2_1::Error FakeComposerClient::setActiveConfig(Display display, Config config) {
319     ALOGV("setActiveConfig");
320     if (mMockHal) {
321         return mMockHal->setActiveConfig(display, config);
322     }
323     mCurrentConfig = config;
324     return V2_1::Error::NONE;
325 }
326 
setColorMode(Display,V1_0::ColorMode)327 V2_1::Error FakeComposerClient::setColorMode(Display /*display*/, V1_0::ColorMode /*mode*/) {
328     ALOGV("setColorMode");
329     return V2_1::Error::NONE;
330 }
331 
setPowerMode(Display,V2_1::IComposerClient::PowerMode)332 V2_1::Error FakeComposerClient::setPowerMode(Display /*display*/,
333                                              V2_1::IComposerClient::PowerMode /*mode*/) {
334     ALOGV("setPowerMode");
335     return V2_1::Error::NONE;
336 }
337 
setVsyncEnabled(Display,IComposerClient::Vsync enabled)338 V2_1::Error FakeComposerClient::setVsyncEnabled(Display /*display*/,
339                                                 IComposerClient::Vsync enabled) {
340     mVsyncEnabled = (enabled == IComposerClient::Vsync::ENABLE);
341     ALOGV("setVsyncEnabled(%s)", mVsyncEnabled ? "ENABLE" : "DISABLE");
342     return V2_1::Error::NONE;
343 }
344 
setColorTransform(Display,const float *,int32_t)345 V2_1::Error FakeComposerClient::setColorTransform(Display /*display*/, const float* /*matrix*/,
346                                                   int32_t /*hint*/) {
347     ALOGV("setColorTransform");
348     return V2_1::Error::NONE;
349 }
350 
setClientTarget(Display,buffer_handle_t,int32_t,int32_t,const std::vector<hwc_rect_t> &)351 V2_1::Error FakeComposerClient::setClientTarget(Display /*display*/, buffer_handle_t /*target*/,
352                                                 int32_t /*acquireFence*/, int32_t /*dataspace*/,
353                                                 const std::vector<hwc_rect_t>& /*damage*/) {
354     ALOGV("setClientTarget");
355     return V2_1::Error::NONE;
356 }
357 
setOutputBuffer(Display,buffer_handle_t,int32_t)358 V2_1::Error FakeComposerClient::setOutputBuffer(Display /*display*/, buffer_handle_t /*buffer*/,
359                                                 int32_t /*releaseFence*/) {
360     ALOGV("setOutputBuffer");
361     return V2_1::Error::NONE;
362 }
363 
validateDisplay(Display,std::vector<Layer> *,std::vector<IComposerClient::Composition> *,uint32_t *,std::vector<Layer> *,std::vector<uint32_t> *)364 V2_1::Error FakeComposerClient::validateDisplay(
365         Display /*display*/, std::vector<Layer>* /*outChangedLayers*/,
366         std::vector<IComposerClient::Composition>* /*outCompositionTypes*/,
367         uint32_t* /*outDisplayRequestMask*/, std::vector<Layer>* /*outRequestedLayers*/,
368         std::vector<uint32_t>* /*outRequestMasks*/) {
369     ALOGV("validateDisplay");
370     // TODO: Assume touching nothing means All Korrekt!
371     return V2_1::Error::NONE;
372 }
373 
acceptDisplayChanges(Display)374 V2_1::Error FakeComposerClient::acceptDisplayChanges(Display /*display*/) {
375     ALOGV("acceptDisplayChanges");
376     // Didn't ask for changes because software is omnipotent.
377     return V2_1::Error::NONE;
378 }
379 
layerZOrdering(const std::unique_ptr<FrameRect> & a,const std::unique_ptr<FrameRect> & b)380 bool layerZOrdering(const std::unique_ptr<FrameRect>& a, const std::unique_ptr<FrameRect>& b) {
381     return a->z <= b->z;
382 }
383 
presentDisplay(Display,int32_t *,std::vector<Layer> *,std::vector<int32_t> *)384 V2_1::Error FakeComposerClient::presentDisplay(Display /*display*/, int32_t* /*outPresentFence*/,
385                                                std::vector<Layer>* /*outLayers*/,
386                                                std::vector<int32_t>* /*outReleaseFences*/) {
387     ALOGV("presentDisplay");
388     // TODO Leaving layers and their fences out for now. Doing so
389     // means that we've already processed everything. Important to
390     // test that the fences are respected, though. (How?)
391 
392     std::unique_ptr<Frame> newFrame(new Frame);
393     for (uint64_t layer = 0; layer < mLayers.size(); layer++) {
394         const LayerImpl& layerImpl = *mLayers[layer];
395 
396         if (!layerImpl.mValid) continue;
397 
398         auto rect = std::make_unique<FrameRect>(layer, layerImpl.mRenderState, layerImpl.mZ);
399         newFrame->rectangles.push_back(std::move(rect));
400     }
401     std::sort(newFrame->rectangles.begin(), newFrame->rectangles.end(), layerZOrdering);
402     {
403         Mutex::Autolock _l(mStateMutex);
404         mFrames.push_back(std::move(newFrame));
405         mFramesAvailable.broadcast();
406     }
407     return V2_1::Error::NONE;
408 }
409 
setLayerCursorPosition(Display,Layer,int32_t,int32_t)410 V2_1::Error FakeComposerClient::setLayerCursorPosition(Display /*display*/, Layer /*layer*/,
411                                                        int32_t /*x*/, int32_t /*y*/) {
412     ALOGV("setLayerCursorPosition");
413     return V2_1::Error::NONE;
414 }
415 
setLayerBuffer(Display,Layer layer,buffer_handle_t buffer,int32_t acquireFence)416 V2_1::Error FakeComposerClient::setLayerBuffer(Display /*display*/, Layer layer,
417                                                buffer_handle_t buffer, int32_t acquireFence) {
418     ALOGV("setLayerBuffer");
419     LayerImpl& l = getLayerImpl(layer);
420     if (buffer != l.mRenderState.mBuffer) {
421         l.mRenderState.mSwapCount++; // TODO: Is setting to same value a swap or not?
422     }
423     l.mRenderState.mBuffer = buffer;
424     l.mRenderState.mAcquireFence = acquireFence;
425 
426     return V2_1::Error::NONE;
427 }
428 
setLayerSurfaceDamage(Display,Layer,const std::vector<hwc_rect_t> &)429 V2_1::Error FakeComposerClient::setLayerSurfaceDamage(Display /*display*/, Layer /*layer*/,
430                                                       const std::vector<hwc_rect_t>& /*damage*/) {
431     ALOGV("setLayerSurfaceDamage");
432     return V2_1::Error::NONE;
433 }
434 
setLayerBlendMode(Display,Layer layer,int32_t mode)435 V2_1::Error FakeComposerClient::setLayerBlendMode(Display /*display*/, Layer layer, int32_t mode) {
436     ALOGV("setLayerBlendMode");
437     getLayerImpl(layer).mRenderState.mBlendMode = static_cast<hwc2_blend_mode_t>(mode);
438     return V2_1::Error::NONE;
439 }
440 
setLayerColor(Display,Layer layer,IComposerClient::Color color)441 V2_1::Error FakeComposerClient::setLayerColor(Display /*display*/, Layer layer,
442                                               IComposerClient::Color color) {
443     ALOGV("setLayerColor");
444     getLayerImpl(layer).mRenderState.mLayerColor.r = color.r;
445     getLayerImpl(layer).mRenderState.mLayerColor.g = color.g;
446     getLayerImpl(layer).mRenderState.mLayerColor.b = color.b;
447     getLayerImpl(layer).mRenderState.mLayerColor.a = color.a;
448     return V2_1::Error::NONE;
449 }
450 
setLayerCompositionType(Display,Layer,int32_t)451 V2_1::Error FakeComposerClient::setLayerCompositionType(Display /*display*/, Layer /*layer*/,
452                                                         int32_t /*type*/) {
453     ALOGV("setLayerCompositionType");
454     return V2_1::Error::NONE;
455 }
456 
setLayerDataspace(Display,Layer,int32_t)457 V2_1::Error FakeComposerClient::setLayerDataspace(Display /*display*/, Layer /*layer*/,
458                                                   int32_t /*dataspace*/) {
459     ALOGV("setLayerDataspace");
460     return V2_1::Error::NONE;
461 }
462 
setLayerDisplayFrame(Display,Layer layer,const hwc_rect_t & frame)463 V2_1::Error FakeComposerClient::setLayerDisplayFrame(Display /*display*/, Layer layer,
464                                                      const hwc_rect_t& frame) {
465     ALOGV("setLayerDisplayFrame (%d, %d, %d, %d)", frame.left, frame.top, frame.right,
466           frame.bottom);
467     getLayerImpl(layer).mRenderState.mDisplayFrame = frame;
468     return V2_1::Error::NONE;
469 }
470 
setLayerPlaneAlpha(Display,Layer layer,float alpha)471 V2_1::Error FakeComposerClient::setLayerPlaneAlpha(Display /*display*/, Layer layer, float alpha) {
472     ALOGV("setLayerPlaneAlpha");
473     getLayerImpl(layer).mRenderState.mPlaneAlpha = alpha;
474     return V2_1::Error::NONE;
475 }
476 
setLayerSidebandStream(Display,Layer,buffer_handle_t)477 V2_1::Error FakeComposerClient::setLayerSidebandStream(Display /*display*/, Layer /*layer*/,
478                                                        buffer_handle_t /*stream*/) {
479     ALOGV("setLayerSidebandStream");
480     return V2_1::Error::NONE;
481 }
482 
setLayerSourceCrop(Display,Layer layer,const hwc_frect_t & crop)483 V2_1::Error FakeComposerClient::setLayerSourceCrop(Display /*display*/, Layer layer,
484                                                    const hwc_frect_t& crop) {
485     ALOGV("setLayerSourceCrop");
486     getLayerImpl(layer).mRenderState.mSourceCrop = crop;
487     return V2_1::Error::NONE;
488 }
489 
setLayerTransform(Display,Layer layer,int32_t transform)490 V2_1::Error FakeComposerClient::setLayerTransform(Display /*display*/, Layer layer,
491                                                   int32_t transform) {
492     ALOGV("setLayerTransform");
493     getLayerImpl(layer).mRenderState.mTransform = static_cast<hwc_transform_t>(transform);
494     return V2_1::Error::NONE;
495 }
496 
setLayerVisibleRegion(Display,Layer layer,const std::vector<hwc_rect_t> & visible)497 V2_1::Error FakeComposerClient::setLayerVisibleRegion(Display /*display*/, Layer layer,
498                                                       const std::vector<hwc_rect_t>& visible) {
499     ALOGV("setLayerVisibleRegion");
500     getLayerImpl(layer).mRenderState.mVisibleRegion = visible;
501     return V2_1::Error::NONE;
502 }
503 
setLayerZOrder(Display,Layer layer,uint32_t z)504 V2_1::Error FakeComposerClient::setLayerZOrder(Display /*display*/, Layer layer, uint32_t z) {
505     ALOGV("setLayerZOrder");
506     getLayerImpl(layer).mZ = z;
507     return V2_1::Error::NONE;
508 }
509 
510 // Composer 2.2
getPerFrameMetadataKeys(Display,std::vector<V2_2::IComposerClient::PerFrameMetadataKey> *)511 V2_1::Error FakeComposerClient::getPerFrameMetadataKeys(
512         Display /*display*/, std::vector<V2_2::IComposerClient::PerFrameMetadataKey>* /*outKeys*/) {
513     return V2_1::Error::UNSUPPORTED;
514 }
515 
setLayerPerFrameMetadata(Display,Layer,const std::vector<V2_2::IComposerClient::PerFrameMetadata> &)516 V2_1::Error FakeComposerClient::setLayerPerFrameMetadata(
517         Display /*display*/, Layer /*layer*/,
518         const std::vector<V2_2::IComposerClient::PerFrameMetadata>& /*metadata*/) {
519     return V2_1::Error::UNSUPPORTED;
520 }
521 
getReadbackBufferAttributes(Display,graphics::common::V1_1::PixelFormat *,graphics::common::V1_1::Dataspace *)522 V2_1::Error FakeComposerClient::getReadbackBufferAttributes(
523         Display /*display*/, graphics::common::V1_1::PixelFormat* /*outFormat*/,
524         graphics::common::V1_1::Dataspace* /*outDataspace*/) {
525     return V2_1::Error::UNSUPPORTED;
526 }
527 
setReadbackBuffer(Display,const native_handle_t *,android::base::unique_fd)528 V2_1::Error FakeComposerClient::setReadbackBuffer(Display /*display*/,
529                                                   const native_handle_t* /*bufferHandle*/,
530                                                   android::base::unique_fd /*fenceFd*/) {
531     return V2_1::Error::UNSUPPORTED;
532 }
533 
getReadbackBufferFence(Display,android::base::unique_fd *)534 V2_1::Error FakeComposerClient::getReadbackBufferFence(Display /*display*/,
535                                                        android::base::unique_fd* /*outFenceFd*/) {
536     return V2_1::Error::UNSUPPORTED;
537 }
538 
createVirtualDisplay_2_2(uint32_t,uint32_t,graphics::common::V1_1::PixelFormat *,Display *)539 V2_1::Error FakeComposerClient::createVirtualDisplay_2_2(
540         uint32_t /*width*/, uint32_t /*height*/, graphics::common::V1_1::PixelFormat* /*format*/,
541         Display* /*outDisplay*/) {
542     return V2_1::Error::UNSUPPORTED;
543 }
getClientTargetSupport_2_2(Display,uint32_t,uint32_t,graphics::common::V1_1::PixelFormat,graphics::common::V1_1::Dataspace)544 V2_1::Error FakeComposerClient::getClientTargetSupport_2_2(
545         Display /*display*/, uint32_t /*width*/, uint32_t /*height*/,
546         graphics::common::V1_1::PixelFormat /*format*/,
547         graphics::common::V1_1::Dataspace /*dataspace*/) {
548     return V2_1::Error::UNSUPPORTED;
549 }
550 
setPowerMode_2_2(Display,V2_2::IComposerClient::PowerMode)551 V2_1::Error FakeComposerClient::setPowerMode_2_2(Display /*display*/,
552                                                  V2_2::IComposerClient::PowerMode /*mode*/) {
553     return V2_1::Error::UNSUPPORTED;
554 }
555 
setLayerFloatColor(Display,Layer,V2_2::IComposerClient::FloatColor)556 V2_1::Error FakeComposerClient::setLayerFloatColor(Display /*display*/, Layer /*layer*/,
557                                                    V2_2::IComposerClient::FloatColor /*color*/) {
558     return V2_1::Error::UNSUPPORTED;
559 }
560 
getColorModes_2_2(Display,hidl_vec<graphics::common::V1_1::ColorMode> *)561 V2_1::Error FakeComposerClient::getColorModes_2_2(
562         Display /*display*/, hidl_vec<graphics::common::V1_1::ColorMode>* /*outModes*/) {
563     return V2_1::Error::UNSUPPORTED;
564 }
565 
getRenderIntents(Display,graphics::common::V1_1::ColorMode,std::vector<graphics::common::V1_1::RenderIntent> *)566 V2_1::Error FakeComposerClient::getRenderIntents(
567         Display /*display*/, graphics::common::V1_1::ColorMode /*mode*/,
568         std::vector<graphics::common::V1_1::RenderIntent>* /*outIntents*/) {
569     return V2_1::Error::UNSUPPORTED;
570 }
571 
setColorMode_2_2(Display,graphics::common::V1_1::ColorMode,graphics::common::V1_1::RenderIntent)572 V2_1::Error FakeComposerClient::setColorMode_2_2(Display /*display*/,
573                                                  graphics::common::V1_1::ColorMode /*mode*/,
574                                                  graphics::common::V1_1::RenderIntent /*intent*/) {
575     return V2_1::Error::UNSUPPORTED;
576 }
577 
getDataspaceSaturationMatrix(graphics::common::V1_1::Dataspace)578 std::array<float, 16> FakeComposerClient::getDataspaceSaturationMatrix(
579         graphics::common::V1_1::Dataspace /*dataspace*/) {
580     return {};
581 }
582 
583 // Composer 2.3
getPerFrameMetadataKeys_2_3(Display,std::vector<V2_3::IComposerClient::PerFrameMetadataKey> *)584 V2_1::Error FakeComposerClient::getPerFrameMetadataKeys_2_3(
585         Display /*display*/, std::vector<V2_3::IComposerClient::PerFrameMetadataKey>* /*outKeys*/) {
586     return V2_1::Error::UNSUPPORTED;
587 }
588 
setColorMode_2_3(Display,graphics::common::V1_2::ColorMode,graphics::common::V1_1::RenderIntent)589 V2_1::Error FakeComposerClient::setColorMode_2_3(Display /*display*/,
590                                                  graphics::common::V1_2::ColorMode /*mode*/,
591                                                  graphics::common::V1_1::RenderIntent /*intent*/) {
592     return V2_1::Error::UNSUPPORTED;
593 }
594 
getRenderIntents_2_3(Display,graphics::common::V1_2::ColorMode,std::vector<graphics::common::V1_1::RenderIntent> *)595 V2_1::Error FakeComposerClient::getRenderIntents_2_3(
596         Display /*display*/, graphics::common::V1_2::ColorMode /*mode*/,
597         std::vector<graphics::common::V1_1::RenderIntent>* /*outIntents*/) {
598     return V2_1::Error::UNSUPPORTED;
599 }
600 
getColorModes_2_3(Display,hidl_vec<graphics::common::V1_2::ColorMode> *)601 V2_1::Error FakeComposerClient::getColorModes_2_3(
602         Display /*display*/, hidl_vec<graphics::common::V1_2::ColorMode>* /*outModes*/) {
603     return V2_1::Error::UNSUPPORTED;
604 }
605 
getClientTargetSupport_2_3(Display,uint32_t,uint32_t,graphics::common::V1_2::PixelFormat,graphics::common::V1_2::Dataspace)606 V2_1::Error FakeComposerClient::getClientTargetSupport_2_3(
607         Display /*display*/, uint32_t /*width*/, uint32_t /*height*/,
608         graphics::common::V1_2::PixelFormat /*format*/,
609         graphics::common::V1_2::Dataspace /*dataspace*/) {
610     return V2_1::Error::UNSUPPORTED;
611 }
612 
getReadbackBufferAttributes_2_3(Display,graphics::common::V1_2::PixelFormat *,graphics::common::V1_2::Dataspace *)613 V2_1::Error FakeComposerClient::getReadbackBufferAttributes_2_3(
614         Display /*display*/, graphics::common::V1_2::PixelFormat* /*outFormat*/,
615         graphics::common::V1_2::Dataspace* /*outDataspace*/) {
616     return V2_1::Error::UNSUPPORTED;
617 }
618 
getHdrCapabilities_2_3(Display,hidl_vec<graphics::common::V1_2::Hdr> *,float *,float *,float *)619 V2_1::Error FakeComposerClient::getHdrCapabilities_2_3(
620         Display /*display*/, hidl_vec<graphics::common::V1_2::Hdr>* /*outTypes*/,
621         float* /*outMaxLuminance*/, float* /*outMaxAverageLuminance*/, float* /*outMinLuminance*/) {
622     return V2_1::Error::UNSUPPORTED;
623 }
624 
setLayerPerFrameMetadata_2_3(Display,Layer,const std::vector<V2_3::IComposerClient::PerFrameMetadata> &)625 V2_1::Error FakeComposerClient::setLayerPerFrameMetadata_2_3(
626         Display /*display*/, Layer /*layer*/,
627         const std::vector<V2_3::IComposerClient::PerFrameMetadata>& /*metadata*/) {
628     return V2_1::Error::UNSUPPORTED;
629 }
630 
getDisplayIdentificationData(Display,uint8_t *,std::vector<uint8_t> *)631 V2_1::Error FakeComposerClient::getDisplayIdentificationData(Display /*display*/,
632                                                              uint8_t* /*outPort*/,
633                                                              std::vector<uint8_t>* /*outData*/) {
634     return V2_1::Error::UNSUPPORTED;
635 }
636 
setLayerColorTransform(Display,Layer,const float *)637 V2_1::Error FakeComposerClient::setLayerColorTransform(Display /*display*/, Layer /*layer*/,
638                                                        const float* /*matrix*/) {
639     return V2_1::Error::UNSUPPORTED;
640 }
641 
getDisplayedContentSamplingAttributes(uint64_t,graphics::common::V1_2::PixelFormat &,graphics::common::V1_2::Dataspace &,hidl_bitfield<V2_3::IComposerClient::FormatColorComponent> &)642 V2_1::Error FakeComposerClient::getDisplayedContentSamplingAttributes(
643         uint64_t /*display*/, graphics::common::V1_2::PixelFormat& /*format*/,
644         graphics::common::V1_2::Dataspace& /*dataspace*/,
645         hidl_bitfield<V2_3::IComposerClient::FormatColorComponent>& /*componentMask*/) {
646     return V2_1::Error::UNSUPPORTED;
647 }
648 
setDisplayedContentSamplingEnabled(uint64_t,V2_3::IComposerClient::DisplayedContentSampling,hidl_bitfield<V2_3::IComposerClient::FormatColorComponent>,uint64_t)649 V2_1::Error FakeComposerClient::setDisplayedContentSamplingEnabled(
650         uint64_t /*display*/, V2_3::IComposerClient::DisplayedContentSampling /*enable*/,
651         hidl_bitfield<V2_3::IComposerClient::FormatColorComponent> /*componentMask*/,
652         uint64_t /*maxFrames*/) {
653     return V2_1::Error::UNSUPPORTED;
654 }
655 
getDisplayedContentSample(uint64_t,uint64_t,uint64_t,uint64_t &,hidl_vec<uint64_t> &,hidl_vec<uint64_t> &,hidl_vec<uint64_t> &,hidl_vec<uint64_t> &)656 V2_1::Error FakeComposerClient::getDisplayedContentSample(
657         uint64_t /*display*/, uint64_t /*maxFrames*/, uint64_t /*timestamp*/,
658         uint64_t& /*frameCount*/, hidl_vec<uint64_t>& /*sampleComponent0*/,
659         hidl_vec<uint64_t>& /*sampleComponent1*/, hidl_vec<uint64_t>& /*sampleComponent2*/,
660         hidl_vec<uint64_t>& /*sampleComponent3*/) {
661     return V2_1::Error::UNSUPPORTED;
662 }
663 
getDisplayCapabilities(Display,std::vector<V2_3::IComposerClient::DisplayCapability> *)664 V2_1::Error FakeComposerClient::getDisplayCapabilities(
665         Display /*display*/,
666         std::vector<V2_3::IComposerClient::DisplayCapability>* /*outCapabilities*/) {
667     return V2_1::Error::UNSUPPORTED;
668 }
669 
setLayerPerFrameMetadataBlobs(Display,Layer,std::vector<V2_3::IComposerClient::PerFrameMetadataBlob> &)670 V2_1::Error FakeComposerClient::setLayerPerFrameMetadataBlobs(
671         Display /*display*/, Layer /*layer*/,
672         std::vector<V2_3::IComposerClient::PerFrameMetadataBlob>& /*blobs*/) {
673     return V2_1::Error::UNSUPPORTED;
674 }
675 
getDisplayBrightnessSupport(Display,bool *)676 V2_1::Error FakeComposerClient::getDisplayBrightnessSupport(Display /*display*/,
677                                                             bool* /*outSupport*/) {
678     return V2_1::Error::UNSUPPORTED;
679 }
680 
setDisplayBrightness(Display,float)681 V2_1::Error FakeComposerClient::setDisplayBrightness(Display /*display*/, float /*brightness*/) {
682     return V2_1::Error::UNSUPPORTED;
683 }
684 
685 // Composer 2.4
registerEventCallback_2_4(EventCallback_2_4 * callback)686 void FakeComposerClient::registerEventCallback_2_4(EventCallback_2_4* callback) {
687     ALOGV("registerEventCallback_2_4");
688     LOG_FATAL_IF(mEventCallback != nullptr, "already registered using registerEventCallback");
689 
690     mEventCallback_2_4 = callback;
691     if (mEventCallback_2_4) {
692         mEventCallback_2_4->onHotplug(PRIMARY_DISPLAY, IComposerCallback::Connection::CONNECTED);
693     }
694 }
695 
unregisterEventCallback_2_4()696 void FakeComposerClient::unregisterEventCallback_2_4() {
697     ALOGV("unregisterEventCallback_2_4");
698     mEventCallback_2_4 = nullptr;
699 }
700 
getDisplayCapabilities_2_4(Display,std::vector<V2_4::IComposerClient::DisplayCapability> *)701 V2_4::Error FakeComposerClient::getDisplayCapabilities_2_4(
702         Display /*display*/,
703         std::vector<V2_4::IComposerClient::DisplayCapability>* /*outCapabilities*/) {
704     return V2_4::Error::UNSUPPORTED;
705 }
706 
getDisplayConnectionType(Display,V2_4::IComposerClient::DisplayConnectionType *)707 V2_4::Error FakeComposerClient::getDisplayConnectionType(
708         Display /*display*/, V2_4::IComposerClient::DisplayConnectionType* /*outType*/) {
709     return V2_4::Error::UNSUPPORTED;
710 }
711 
getDisplayAttribute_2_4(Display display,Config config,IComposerClient::Attribute attribute,int32_t * outValue)712 V2_4::Error FakeComposerClient::getDisplayAttribute_2_4(Display display, Config config,
713                                                         IComposerClient::Attribute attribute,
714                                                         int32_t* outValue) {
715     ALOGV("getDisplayAttribute (%d, %d, %d, %p)", static_cast<int>(display),
716           static_cast<int>(config), static_cast<int>(attribute), outValue);
717     if (mMockHal) {
718         return mMockHal->getDisplayAttribute_2_4(display, config, attribute, outValue);
719     }
720 
721     // TODO: SOOO much fun to be had with these alone
722     switch (attribute) {
723         case IComposerClient::Attribute::WIDTH:
724             *outValue = 1920;
725             break;
726         case IComposerClient::Attribute::HEIGHT:
727             *outValue = 1080;
728             break;
729         case IComposerClient::Attribute::VSYNC_PERIOD:
730             *outValue = 1666666666;
731             break; // TOOD: Tests break down if lowered to 16ms?
732         case IComposerClient::Attribute::DPI_X:
733             *outValue = 240;
734             break;
735         case IComposerClient::Attribute::DPI_Y:
736             *outValue = 240;
737             break;
738         default:
739             LOG_ALWAYS_FATAL("Say what!?! New attribute");
740     }
741 
742     return Error::NONE;
743 }
744 
getDisplayVsyncPeriod(Display display,V2_4::VsyncPeriodNanos * outVsyncPeriod)745 V2_4::Error FakeComposerClient::getDisplayVsyncPeriod(Display display,
746                                                       V2_4::VsyncPeriodNanos* outVsyncPeriod) {
747     ALOGV("getDisplayVsyncPeriod");
748     if (mMockHal) {
749         return mMockHal->getDisplayVsyncPeriod(display, outVsyncPeriod);
750     }
751 
752     return V2_4::Error::UNSUPPORTED;
753 }
754 
setActiveConfigWithConstraints(Display display,Config config,const V2_4::IComposerClient::VsyncPeriodChangeConstraints & vsyncPeriodChangeConstraints,VsyncPeriodChangeTimeline * timeline)755 V2_4::Error FakeComposerClient::setActiveConfigWithConstraints(
756         Display display, Config config,
757         const V2_4::IComposerClient::VsyncPeriodChangeConstraints& vsyncPeriodChangeConstraints,
758         VsyncPeriodChangeTimeline* timeline) {
759     ALOGV("setActiveConfigWithConstraints");
760     if (mMockHal) {
761         return mMockHal->setActiveConfigWithConstraints(display, config,
762                                                         vsyncPeriodChangeConstraints, timeline);
763     }
764     return V2_4::Error::UNSUPPORTED;
765 }
766 
setAutoLowLatencyMode(Display,bool)767 V2_4::Error FakeComposerClient::setAutoLowLatencyMode(Display, bool) {
768     ALOGV("setAutoLowLatencyMode");
769     return V2_4::Error::UNSUPPORTED;
770 }
771 
getSupportedContentTypes(Display,std::vector<IComposerClient::ContentType> *)772 V2_4::Error FakeComposerClient::getSupportedContentTypes(
773         Display, std::vector<IComposerClient::ContentType>*) {
774     ALOGV("getSupportedContentTypes");
775     return V2_4::Error::UNSUPPORTED;
776 }
777 
setContentType(Display,IComposerClient::ContentType)778 V2_4::Error FakeComposerClient::setContentType(Display, IComposerClient::ContentType) {
779     ALOGV("setContentType");
780     return V2_4::Error::UNSUPPORTED;
781 }
782 
validateDisplay_2_4(Display,std::vector<Layer> *,std::vector<IComposerClient::Composition> *,uint32_t *,std::vector<Layer> *,std::vector<uint32_t> *,IComposerClient::ClientTargetProperty *)783 V2_4::Error FakeComposerClient::validateDisplay_2_4(
784         Display /*display*/, std::vector<Layer>* /*outChangedLayers*/,
785         std::vector<IComposerClient::Composition>* /*outCompositionTypes*/,
786         uint32_t* /*outDisplayRequestMask*/, std::vector<Layer>* /*outRequestedLayers*/,
787         std::vector<uint32_t>* /*outRequestMasks*/,
788         IComposerClient::ClientTargetProperty* /*outClientTargetProperty*/) {
789     return V2_4::Error::NONE;
790 }
791 
setLayerGenericMetadata(Display,Layer,const std::string &,bool,const std::vector<uint8_t> &)792 V2_4::Error FakeComposerClient::setLayerGenericMetadata(Display, Layer, const std::string&, bool,
793                                                         const std::vector<uint8_t>&) {
794     ALOGV("setLayerGenericMetadata");
795     return V2_4::Error::UNSUPPORTED;
796 }
797 
getLayerGenericMetadataKeys(std::vector<IComposerClient::LayerGenericMetadataKey> *)798 V2_4::Error FakeComposerClient::getLayerGenericMetadataKeys(
799         std::vector<IComposerClient::LayerGenericMetadataKey>*) {
800     ALOGV("getLayerGenericMetadataKeys");
801     return V2_4::Error::UNSUPPORTED;
802 }
803 
804 //////////////////////////////////////////////////////////////////
805 
requestVSync(uint64_t vsyncTime)806 void FakeComposerClient::requestVSync(uint64_t vsyncTime) {
807     if (mEventCallback || mEventCallback_2_4) {
808         uint64_t timestamp = vsyncTime;
809         ALOGV("Vsync");
810         if (timestamp == 0) {
811             struct timespec ts;
812             clock_gettime(CLOCK_MONOTONIC, &ts);
813             timestamp = ts.tv_sec * 1000 * 1000 * 1000 + ts.tv_nsec;
814         }
815         if (mSurfaceComposer != nullptr) {
816             mSurfaceComposer->injectVSync(timestamp);
817         } else if (mEventCallback) {
818             mEventCallback->onVsync(PRIMARY_DISPLAY, timestamp);
819         } else {
820             mEventCallback_2_4->onVsync_2_4(PRIMARY_DISPLAY, timestamp, 16'666'666);
821         }
822     }
823 }
824 
runVSyncAfter(std::chrono::nanoseconds wait)825 void FakeComposerClient::runVSyncAfter(std::chrono::nanoseconds wait) {
826     mDelayedEventGenerator->wakeAfter(wait);
827 }
828 
getLayerImpl(Layer handle)829 LayerImpl& FakeComposerClient::getLayerImpl(Layer handle) {
830     // TODO Change these to an internal state check that can be
831     // invoked from the gtest? GTest macros do not seem all that safe
832     // when used outside the test class
833     EXPECT_GE(handle, static_cast<Layer>(0));
834     EXPECT_LT(handle, mLayers.size());
835     return *(mLayers[handle]);
836 }
837 
getFrameCount() const838 int FakeComposerClient::getFrameCount() const {
839     return mFrames.size();
840 }
841 
extractRenderState(const std::vector<std::unique_ptr<FrameRect>> & internalRects)842 static std::vector<RenderState> extractRenderState(
843         const std::vector<std::unique_ptr<FrameRect>>& internalRects) {
844     std::vector<RenderState> result;
845     result.reserve(internalRects.size());
846     for (const std::unique_ptr<FrameRect>& rect : internalRects) {
847         result.push_back(rect->renderState);
848     }
849     return result;
850 }
851 
getFrameRects(int frame) const852 std::vector<RenderState> FakeComposerClient::getFrameRects(int frame) const {
853     Mutex::Autolock _l(mStateMutex);
854     return extractRenderState(mFrames[frame]->rectangles);
855 }
856 
getLatestFrame() const857 std::vector<RenderState> FakeComposerClient::getLatestFrame() const {
858     Mutex::Autolock _l(mStateMutex);
859     return extractRenderState(mFrames[mFrames.size() - 1]->rectangles);
860 }
861 
runVSyncAndWait(std::chrono::nanoseconds maxWait)862 void FakeComposerClient::runVSyncAndWait(std::chrono::nanoseconds maxWait) {
863     int currentFrame = 0;
864     {
865         Mutex::Autolock _l(mStateMutex); // I hope this is ok...
866         currentFrame = static_cast<int>(mFrames.size());
867         requestVSync();
868     }
869     waitUntilFrame(currentFrame + 1, maxWait);
870 }
871 
waitUntilFrame(int targetFrame,std::chrono::nanoseconds maxWait) const872 void FakeComposerClient::waitUntilFrame(int targetFrame, std::chrono::nanoseconds maxWait) const {
873     Mutex::Autolock _l(mStateMutex);
874     while (mFrames.size() < static_cast<size_t>(targetFrame)) {
875         android::status_t result = mFramesAvailable.waitRelative(mStateMutex, maxWait.count());
876         if (result == android::TIMED_OUT) {
877             ALOGE("Waiting for frame %d (at frame %zu now) timed out after %lld ns", targetFrame,
878                   mFrames.size(), maxWait.count());
879             return;
880         }
881     }
882 }
883 
clearFrames()884 void FakeComposerClient::clearFrames() {
885     Mutex::Autolock _l(mStateMutex);
886     mFrames.clear();
887     for (const std::unique_ptr<LayerImpl>& layer : mLayers) {
888         if (layer->mValid) {
889             layer->mRenderState.mSwapCount = 0;
890         }
891     }
892 }
893 
onSurfaceFlingerStart()894 void FakeComposerClient::onSurfaceFlingerStart() {
895     mSurfaceComposer = nullptr;
896     do {
897         mSurfaceComposer = new android::SurfaceComposerClient;
898         android::status_t initResult = mSurfaceComposer->initCheck();
899         if (initResult != android::NO_ERROR) {
900             ALOGD("Init result: %d", initResult);
901             mSurfaceComposer = nullptr;
902             std::this_thread::sleep_for(10ms);
903         }
904     } while (mSurfaceComposer == nullptr);
905     ALOGD("SurfaceComposerClient created");
906     mSurfaceComposer->enableVSyncInjections(true);
907 }
908 
onSurfaceFlingerStop()909 void FakeComposerClient::onSurfaceFlingerStop() {
910     mSurfaceComposer->dispose();
911     mSurfaceComposer.clear();
912 }
913 
914 // Includes destroyed layers, stored in order of creation.
getLayerCount() const915 int FakeComposerClient::getLayerCount() const {
916     return mLayers.size();
917 }
918 
getLayer(size_t index) const919 Layer FakeComposerClient::getLayer(size_t index) const {
920     // NOTE: If/when passing calls through to actual implementation,
921     // this might get more involving.
922     return static_cast<Layer>(index);
923 }
924 
925 // TODO(b/129481165): remove the #pragma below and fix conversion issues
926 #pragma clang diagnostic pop // ignored "-Wconversion"
927