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fuchsia / third_party / android / platform / frameworks / native / 61d0f84881cfc1bbac513ccd156c56603a48cc90 / . / services / surfaceflinger / SurfaceFlinger.cpp
blob: 07690cbf325e2ed904eb59b03e6f51b208a15267 [file] [log] [blame]
/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// TODO(b/129481165): remove the #pragma below and fix conversion issues
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wconversion"
//#define LOG_NDEBUG 0
#define ATRACE_TAG ATRACE_TAG_GRAPHICS
#include "SurfaceFlinger.h"
#include <android-base/properties.h>
#include <android/configuration.h>
#include <android/hardware/configstore/1.0/ISurfaceFlingerConfigs.h>
#include <android/hardware/configstore/1.1/ISurfaceFlingerConfigs.h>
#include <android/hardware/configstore/1.1/types.h>
#include <android/hardware/power/1.0/IPower.h>
#include <android/native_window.h>
#include <binder/IPCThreadState.h>
#include <binder/IServiceManager.h>
#include <binder/PermissionCache.h>
#include <compositionengine/CompositionEngine.h>
#include <compositionengine/CompositionRefreshArgs.h>
#include <compositionengine/Display.h>
#include <compositionengine/DisplayColorProfile.h>
#include <compositionengine/DisplayCreationArgs.h>
#include <compositionengine/LayerFECompositionState.h>
#include <compositionengine/OutputLayer.h>
#include <compositionengine/RenderSurface.h>
#include <compositionengine/impl/OutputCompositionState.h>
#include <configstore/Utils.h>
#include <cutils/compiler.h>
#include <cutils/properties.h>
#include <dlfcn.h>
#include <dvr/vr_flinger.h>
#include <errno.h>
#include <gui/BufferQueue.h>
#include <gui/DebugEGLImageTracker.h>
#include <gui/GuiConfig.h>
#include <gui/IDisplayEventConnection.h>
#include <gui/IProducerListener.h>
#include <gui/LayerDebugInfo.h>
#include <gui/LayerMetadata.h>
#include <gui/LayerState.h>
#include <gui/Surface.h>
#include <input/IInputFlinger.h>
#include <layerproto/LayerProtoParser.h>
#include <log/log.h>
#include <private/android_filesystem_config.h>
#include <private/gui/SyncFeatures.h>
#include <renderengine/RenderEngine.h>
#include <statslog.h>
#include <sys/types.h>
#include <ui/ColorSpace.h>
#include <ui/DebugUtils.h>
#include <ui/DisplayConfig.h>
#include <ui/DisplayInfo.h>
#include <ui/DisplayStatInfo.h>
#include <ui/DisplayState.h>
#include <ui/GraphicBufferAllocator.h>
#include <ui/PixelFormat.h>
#include <ui/UiConfig.h>
#include <utils/StopWatch.h>
#include <utils/String16.h>
#include <utils/String8.h>
#include <utils/Timers.h>
#include <utils/Trace.h>
#include <utils/misc.h>
#include <algorithm>
#include <cinttypes>
#include <cmath>
#include <cstdint>
#include <functional>
#include <mutex>
#include <optional>
#include <unordered_map>
#include "BufferLayer.h"
#include "BufferQueueLayer.h"
#include "BufferStateLayer.h"
#include "Client.h"
#include "Colorizer.h"
#include "ContainerLayer.h"
#include "DisplayDevice.h"
#include "DisplayHardware/ComposerHal.h"
#include "DisplayHardware/DisplayIdentification.h"
#include "DisplayHardware/FramebufferSurface.h"
#include "DisplayHardware/HWComposer.h"
#include "DisplayHardware/VirtualDisplaySurface.h"
#include "EffectLayer.h"
#include "Effects/Daltonizer.h"
#include "FrameTracer/FrameTracer.h"
#include "Layer.h"
#include "LayerVector.h"
#include "MonitoredProducer.h"
#include "NativeWindowSurface.h"
#include "Promise.h"
#include "RefreshRateOverlay.h"
#include "RegionSamplingThread.h"
#include "Scheduler/DispSync.h"
#include "Scheduler/DispSyncSource.h"
#include "Scheduler/EventControlThread.h"
#include "Scheduler/EventThread.h"
#include "Scheduler/LayerHistory.h"
#include "Scheduler/MessageQueue.h"
#include "Scheduler/PhaseOffsets.h"
#include "Scheduler/Scheduler.h"
#include "StartPropertySetThread.h"
#include "SurfaceFlingerProperties.h"
#include "SurfaceInterceptor.h"
#include "TimeStats/TimeStats.h"
#include "android-base/parseint.h"
#include "android-base/stringprintf.h"
#define MAIN_THREAD ACQUIRE(mStateLock) RELEASE(mStateLock)
#define ON_MAIN_THREAD(expr) \
[&] { \
LOG_FATAL_IF(std::this_thread::get_id() != mMainThreadId); \
UnnecessaryLock lock(mStateLock); \
return (expr); \
}()
#undef NO_THREAD_SAFETY_ANALYSIS
#define NO_THREAD_SAFETY_ANALYSIS \
_Pragma("GCC error \"Prefer MAIN_THREAD macros or {Conditional,Timed,Unnecessary}Lock.\"")
namespace android {
using namespace std::string_literals;
using namespace android::hardware::configstore;
using namespace android::hardware::configstore::V1_0;
using namespace android::sysprop;
using android::hardware::power::V1_0::PowerHint;
using base::StringAppendF;
using ui::ColorMode;
using ui::Dataspace;
using ui::DisplayPrimaries;
using ui::Hdr;
using ui::RenderIntent;
namespace hal = android::hardware::graphics::composer::hal;
namespace {
#pragma clang diagnostic push
#pragma clang diagnostic error "-Wswitch-enum"
bool isWideColorMode(const ColorMode colorMode) {
switch (colorMode) {
case ColorMode::DISPLAY_P3:
case ColorMode::ADOBE_RGB:
case ColorMode::DCI_P3:
case ColorMode::BT2020:
case ColorMode::DISPLAY_BT2020:
case ColorMode::BT2100_PQ:
case ColorMode::BT2100_HLG:
return true;
case ColorMode::NATIVE:
case ColorMode::STANDARD_BT601_625:
case ColorMode::STANDARD_BT601_625_UNADJUSTED:
case ColorMode::STANDARD_BT601_525:
case ColorMode::STANDARD_BT601_525_UNADJUSTED:
case ColorMode::STANDARD_BT709:
case ColorMode::SRGB:
return false;
}
return false;
}
#pragma clang diagnostic pop
template <typename Mutex>
struct SCOPED_CAPABILITY ConditionalLockGuard {
ConditionalLockGuard(Mutex& mutex, bool lock) ACQUIRE(mutex) : mutex(mutex), lock(lock) {
if (lock) mutex.lock();
}
~ConditionalLockGuard() RELEASE() {
if (lock) mutex.unlock();
}
Mutex& mutex;
const bool lock;
};
using ConditionalLock = ConditionalLockGuard<Mutex>;
struct SCOPED_CAPABILITY TimedLock {
TimedLock(Mutex& mutex, nsecs_t timeout, const char* whence) ACQUIRE(mutex)
: mutex(mutex), status(mutex.timedLock(timeout)) {
ALOGE_IF(!locked(), "%s timed out locking: %s (%d)", whence, strerror(-status), status);
}
~TimedLock() RELEASE() {
if (locked()) mutex.unlock();
}
bool locked() const { return status == NO_ERROR; }
Mutex& mutex;
const status_t status;
};
struct SCOPED_CAPABILITY UnnecessaryLock {
explicit UnnecessaryLock(Mutex& mutex) ACQUIRE(mutex) {}
~UnnecessaryLock() RELEASE() {}
};
// TODO(b/141333600): Consolidate with HWC2::Display::Config::Builder::getDefaultDensity.
constexpr float FALLBACK_DENSITY = ACONFIGURATION_DENSITY_TV;
float getDensityFromProperty(const char* property, bool required) {
char value[PROPERTY_VALUE_MAX];
const float density = property_get(property, value, nullptr) > 0 ? std::atof(value) : 0.f;
if (!density && required) {
ALOGE("%s must be defined as a build property", property);
return FALLBACK_DENSITY;
}
return density;
}
// Currently we only support V0_SRGB and DISPLAY_P3 as composition preference.
bool validateCompositionDataspace(Dataspace dataspace) {
return dataspace == Dataspace::V0_SRGB || dataspace == Dataspace::DISPLAY_P3;
}
class FrameRateFlexibilityToken : public BBinder {
public:
FrameRateFlexibilityToken(std::function<void()> callback) : mCallback(callback) {}
virtual ~FrameRateFlexibilityToken() { mCallback(); }
private:
std::function<void()> mCallback;
};
} // namespace anonymous
// ---------------------------------------------------------------------------
const String16 sHardwareTest("android.permission.HARDWARE_TEST");
const String16 sAccessSurfaceFlinger("android.permission.ACCESS_SURFACE_FLINGER");
const String16 sReadFramebuffer("android.permission.READ_FRAME_BUFFER");
const String16 sDump("android.permission.DUMP");
const char* KERNEL_IDLE_TIMER_PROP = "graphics.display.kernel_idle_timer.enabled";
// ---------------------------------------------------------------------------
int64_t SurfaceFlinger::dispSyncPresentTimeOffset;
bool SurfaceFlinger::useHwcForRgbToYuv;
uint64_t SurfaceFlinger::maxVirtualDisplaySize;
bool SurfaceFlinger::hasSyncFramework;
bool SurfaceFlinger::useVrFlinger;
int64_t SurfaceFlinger::maxFrameBufferAcquiredBuffers;
uint32_t SurfaceFlinger::maxGraphicsWidth;
uint32_t SurfaceFlinger::maxGraphicsHeight;
bool SurfaceFlinger::hasWideColorDisplay;
ui::Rotation SurfaceFlinger::internalDisplayOrientation = ui::ROTATION_0;
bool SurfaceFlinger::useColorManagement;
bool SurfaceFlinger::useContextPriority;
Dataspace SurfaceFlinger::defaultCompositionDataspace = Dataspace::V0_SRGB;
ui::PixelFormat SurfaceFlinger::defaultCompositionPixelFormat = ui::PixelFormat::RGBA_8888;
Dataspace SurfaceFlinger::wideColorGamutCompositionDataspace = Dataspace::V0_SRGB;
ui::PixelFormat SurfaceFlinger::wideColorGamutCompositionPixelFormat = ui::PixelFormat::RGBA_8888;
bool SurfaceFlinger::useFrameRateApi;
std::string getHwcServiceName() {
char value[PROPERTY_VALUE_MAX] = {};
property_get("debug.sf.hwc_service_name", value, "default");
ALOGI("Using HWComposer service: '%s'", value);
return std::string(value);
}
bool useTrebleTestingOverride() {
char value[PROPERTY_VALUE_MAX] = {};
property_get("debug.sf.treble_testing_override", value, "false");
ALOGI("Treble testing override: '%s'", value);
return std::string(value) == "true";
}
std::string decodeDisplayColorSetting(DisplayColorSetting displayColorSetting) {
switch(displayColorSetting) {
case DisplayColorSetting::kManaged:
return std::string("Managed");
case DisplayColorSetting::kUnmanaged:
return std::string("Unmanaged");
case DisplayColorSetting::kEnhanced:
return std::string("Enhanced");
default:
return std::string("Unknown ") +
std::to_string(static_cast<int>(displayColorSetting));
}
}
SurfaceFlingerBE::SurfaceFlingerBE() : mHwcServiceName(getHwcServiceName()) {}
SurfaceFlinger::SurfaceFlinger(Factory& factory, SkipInitializationTag)
: mFactory(factory),
mInterceptor(mFactory.createSurfaceInterceptor(this)),
mTimeStats(std::make_shared<impl::TimeStats>()),
mFrameTracer(std::make_unique<FrameTracer>()),
mEventQueue(mFactory.createMessageQueue()),
mCompositionEngine(mFactory.createCompositionEngine()),
mInternalDisplayDensity(getDensityFromProperty("ro.sf.lcd_density", true)),
mEmulatedDisplayDensity(getDensityFromProperty("qemu.sf.lcd_density", false)) {}
SurfaceFlinger::SurfaceFlinger(Factory& factory) : SurfaceFlinger(factory, SkipInitialization) {
ALOGI("SurfaceFlinger is starting");
hasSyncFramework = running_without_sync_framework(true);
dispSyncPresentTimeOffset = present_time_offset_from_vsync_ns(0);
useHwcForRgbToYuv = force_hwc_copy_for_virtual_displays(false);
maxVirtualDisplaySize = max_virtual_display_dimension(0);
// Vr flinger is only enabled on Daydream ready devices.
useVrFlinger = use_vr_flinger(false);
maxFrameBufferAcquiredBuffers = max_frame_buffer_acquired_buffers(2);
maxGraphicsWidth = std::max(max_graphics_width(0), 0);
maxGraphicsHeight = std::max(max_graphics_height(0), 0);
hasWideColorDisplay = has_wide_color_display(false);
useColorManagement = use_color_management(false);
mDefaultCompositionDataspace =
static_cast<ui::Dataspace>(default_composition_dataspace(Dataspace::V0_SRGB));
mWideColorGamutCompositionDataspace = static_cast<ui::Dataspace>(wcg_composition_dataspace(
hasWideColorDisplay ? Dataspace::DISPLAY_P3 : Dataspace::V0_SRGB));
defaultCompositionDataspace = mDefaultCompositionDataspace;
wideColorGamutCompositionDataspace = mWideColorGamutCompositionDataspace;
defaultCompositionPixelFormat = static_cast<ui::PixelFormat>(
default_composition_pixel_format(ui::PixelFormat::RGBA_8888));
wideColorGamutCompositionPixelFormat =
static_cast<ui::PixelFormat>(wcg_composition_pixel_format(ui::PixelFormat::RGBA_8888));
mColorSpaceAgnosticDataspace =
static_cast<ui::Dataspace>(color_space_agnostic_dataspace(Dataspace::UNKNOWN));
useContextPriority = use_context_priority(true);
using Values = SurfaceFlingerProperties::primary_display_orientation_values;
switch (primary_display_orientation(Values::ORIENTATION_0)) {
case Values::ORIENTATION_0:
break;
case Values::ORIENTATION_90:
internalDisplayOrientation = ui::ROTATION_90;
break;
case Values::ORIENTATION_180:
internalDisplayOrientation = ui::ROTATION_180;
break;
case Values::ORIENTATION_270:
internalDisplayOrientation = ui::ROTATION_270;
break;
}
ALOGV("Internal Display Orientation: %s", toCString(internalDisplayOrientation));
mInternalDisplayPrimaries = sysprop::getDisplayNativePrimaries();
// debugging stuff...
char value[PROPERTY_VALUE_MAX];
property_get("ro.bq.gpu_to_cpu_unsupported", value, "0");
mGpuToCpuSupported = !atoi(value);
property_get("ro.build.type", value, "user");
mIsUserBuild = strcmp(value, "user") == 0;
property_get("debug.sf.showupdates", value, "0");
mDebugRegion = atoi(value);
ALOGI_IF(mDebugRegion, "showupdates enabled");
// DDMS debugging deprecated (b/120782499)
property_get("debug.sf.ddms", value, "0");
int debugDdms = atoi(value);
ALOGI_IF(debugDdms, "DDMS debugging not supported");
property_get("debug.sf.disable_backpressure", value, "0");
mPropagateBackpressure = !atoi(value);
ALOGI_IF(!mPropagateBackpressure, "Disabling backpressure propagation");
property_get("debug.sf.enable_gl_backpressure", value, "0");
mPropagateBackpressureClientComposition = atoi(value);
ALOGI_IF(mPropagateBackpressureClientComposition,
"Enabling backpressure propagation for Client Composition");
property_get("debug.sf.enable_hwc_vds", value, "0");
mUseHwcVirtualDisplays = atoi(value);
ALOGI_IF(mUseHwcVirtualDisplays, "Enabling HWC virtual displays");
property_get("ro.sf.disable_triple_buffer", value, "0");
mLayerTripleBufferingDisabled = atoi(value);
ALOGI_IF(mLayerTripleBufferingDisabled, "Disabling Triple Buffering");
property_get("ro.surface_flinger.supports_background_blur", value, "0");
bool supportsBlurs = atoi(value);
mSupportsBlur = supportsBlurs;
ALOGI_IF(!mSupportsBlur, "Disabling blur effects, they are not supported.");
property_get("ro.sf.blurs_are_expensive", value, "0");
mBlursAreExpensive = atoi(value);
const size_t defaultListSize = ISurfaceComposer::MAX_LAYERS;
auto listSize = property_get_int32("debug.sf.max_igbp_list_size", int32_t(defaultListSize));
mMaxGraphicBufferProducerListSize = (listSize > 0) ? size_t(listSize) : defaultListSize;
property_get("debug.sf.luma_sampling", value, "1");
mLumaSampling = atoi(value);
property_get("debug.sf.disable_client_composition_cache", value, "0");
mDisableClientCompositionCache = atoi(value);
// We should be reading 'persist.sys.sf.color_saturation' here
// but since /data may be encrypted, we need to wait until after vold
// comes online to attempt to read the property. The property is
// instead read after the boot animation
if (useTrebleTestingOverride()) {
// Without the override SurfaceFlinger cannot connect to HIDL
// services that are not listed in the manifests. Considered
// deriving the setting from the set service name, but it
// would be brittle if the name that's not 'default' is used
// for production purposes later on.
setenv("TREBLE_TESTING_OVERRIDE", "true", true);
}
useFrameRateApi = use_frame_rate_api(true);
mKernelIdleTimerEnabled = mSupportKernelIdleTimer = sysprop::support_kernel_idle_timer(false);
base::SetProperty(KERNEL_IDLE_TIMER_PROP, mKernelIdleTimerEnabled ? "true" : "false");
}
SurfaceFlinger::~SurfaceFlinger() = default;
void SurfaceFlinger::onFirstRef() {
mEventQueue->init(this);
}
void SurfaceFlinger::binderDied(const wp<IBinder>&) {
// the window manager died on us. prepare its eulogy.
mBootFinished = false;
// restore initial conditions (default device unblank, etc)
initializeDisplays();
// restart the boot-animation
startBootAnim();
}
void SurfaceFlinger::run() {
while (true) {
mEventQueue->waitMessage();
}
}
template <typename F, typename T>
inline std::future<T> SurfaceFlinger::schedule(F&& f) {
auto [task, future] = makeTask(std::move(f));
mEventQueue->postMessage(std::move(task));
return std::move(future);
}
sp<ISurfaceComposerClient> SurfaceFlinger::createConnection() {
const sp<Client> client = new Client(this);
return client->initCheck() == NO_ERROR ? client : nullptr;
}
sp<IBinder> SurfaceFlinger::createDisplay(const String8& displayName, bool secure) {
class DisplayToken : public BBinder {
sp<SurfaceFlinger> flinger;
virtual ~DisplayToken() {
// no more references, this display must be terminated
Mutex::Autolock _l(flinger->mStateLock);
flinger->mCurrentState.displays.removeItem(this);
flinger->setTransactionFlags(eDisplayTransactionNeeded);
}
public:
explicit DisplayToken(const sp<SurfaceFlinger>& flinger)
: flinger(flinger) {
}
};
sp<BBinder> token = new DisplayToken(this);
Mutex::Autolock _l(mStateLock);
// Display ID is assigned when virtual display is allocated by HWC.
DisplayDeviceState state;
state.isSecure = secure;
state.displayName = displayName;
mCurrentState.displays.add(token, state);
mInterceptor->saveDisplayCreation(state);
return token;
}
void SurfaceFlinger::destroyDisplay(const sp<IBinder>& displayToken) {
Mutex::Autolock lock(mStateLock);
const ssize_t index = mCurrentState.displays.indexOfKey(displayToken);
if (index < 0) {
ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
return;
}
const DisplayDeviceState& state = mCurrentState.displays.valueAt(index);
if (state.physical) {
ALOGE("%s: Invalid operation on physical display", __FUNCTION__);
return;
}
mInterceptor->saveDisplayDeletion(state.sequenceId);
mCurrentState.displays.removeItemsAt(index);
setTransactionFlags(eDisplayTransactionNeeded);
}
std::vector<PhysicalDisplayId> SurfaceFlinger::getPhysicalDisplayIds() const {
Mutex::Autolock lock(mStateLock);
const auto internalDisplayId = getInternalDisplayIdLocked();
if (!internalDisplayId) {
return {};
}
std::vector<PhysicalDisplayId> displayIds;
displayIds.reserve(mPhysicalDisplayTokens.size());
displayIds.push_back(internalDisplayId->value);
for (const auto& [id, token] : mPhysicalDisplayTokens) {
if (id != *internalDisplayId) {
displayIds.push_back(id.value);
}
}
return displayIds;
}
sp<IBinder> SurfaceFlinger::getPhysicalDisplayToken(PhysicalDisplayId displayId) const {
Mutex::Autolock lock(mStateLock);
return getPhysicalDisplayTokenLocked(DisplayId{displayId});
}
status_t SurfaceFlinger::getColorManagement(bool* outGetColorManagement) const {
if (!outGetColorManagement) {
return BAD_VALUE;
}
*outGetColorManagement = useColorManagement;
return NO_ERROR;
}
HWComposer& SurfaceFlinger::getHwComposer() const {
return mCompositionEngine->getHwComposer();
}
renderengine::RenderEngine& SurfaceFlinger::getRenderEngine() const {
return mCompositionEngine->getRenderEngine();
}
compositionengine::CompositionEngine& SurfaceFlinger::getCompositionEngine() const {
return *mCompositionEngine.get();
}
void SurfaceFlinger::bootFinished()
{
if (mBootFinished == true) {
ALOGE("Extra call to bootFinished");
return;
}
mBootFinished = true;
if (mStartPropertySetThread->join() != NO_ERROR) {
ALOGE("Join StartPropertySetThread failed!");
}
const nsecs_t now = systemTime();
const nsecs_t duration = now - mBootTime;
ALOGI("Boot is finished (%ld ms)", long(ns2ms(duration)) );
mFrameTracer->initialize();
mTimeStats->onBootFinished();
// wait patiently for the window manager death
const String16 name("window");
mWindowManager = defaultServiceManager()->getService(name);
if (mWindowManager != 0) {
mWindowManager->linkToDeath(static_cast<IBinder::DeathRecipient*>(this));
}
sp<IBinder> input(defaultServiceManager()->getService(
String16("inputflinger")));
if (input == nullptr) {
ALOGE("Failed to link to input service");
} else {
mInputFlinger = interface_cast<IInputFlinger>(input);
}
if (mVrFlinger) {
mVrFlinger->OnBootFinished();
}
// stop boot animation
// formerly we would just kill the process, but we now ask it to exit so it
// can choose where to stop the animation.
property_set("service.bootanim.exit", "1");
const int LOGTAG_SF_STOP_BOOTANIM = 60110;
LOG_EVENT_LONG(LOGTAG_SF_STOP_BOOTANIM,
ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
static_cast<void>(schedule([this] {
readPersistentProperties();
mPowerAdvisor.onBootFinished();
mBootStage = BootStage::FINISHED;
if (property_get_bool("sf.debug.show_refresh_rate_overlay", false)) {
enableRefreshRateOverlay(true);
}
}));
}
uint32_t SurfaceFlinger::getNewTexture() {
{
std::lock_guard lock(mTexturePoolMutex);
if (!mTexturePool.empty()) {
uint32_t name = mTexturePool.back();
mTexturePool.pop_back();
ATRACE_INT("TexturePoolSize", mTexturePool.size());
return name;
}
// The pool was too small, so increase it for the future
++mTexturePoolSize;
}
// The pool was empty, so we need to get a new texture name directly using a
// blocking call to the main thread
return schedule([this] {
uint32_t name = 0;
getRenderEngine().genTextures(1, &name);
return name;
})
.get();
}
void SurfaceFlinger::deleteTextureAsync(uint32_t texture) {
std::lock_guard lock(mTexturePoolMutex);
// We don't change the pool size, so the fix-up logic in postComposition will decide whether
// to actually delete this or not based on mTexturePoolSize
mTexturePool.push_back(texture);
ATRACE_INT("TexturePoolSize", mTexturePool.size());
}
// Do not call property_set on main thread which will be blocked by init
// Use StartPropertySetThread instead.
void SurfaceFlinger::init() {
ALOGI( "SurfaceFlinger's main thread ready to run. "
"Initializing graphics H/W...");
Mutex::Autolock _l(mStateLock);
// Get a RenderEngine for the given display / config (can't fail)
// TODO(b/77156734): We need to stop casting and use HAL types when possible.
// Sending maxFrameBufferAcquiredBuffers as the cache size is tightly tuned to single-display.
mCompositionEngine->setRenderEngine(renderengine::RenderEngine::create(
renderengine::RenderEngineCreationArgs::Builder()
.setPixelFormat(static_cast<int32_t>(defaultCompositionPixelFormat))
.setImageCacheSize(maxFrameBufferAcquiredBuffers)
.setUseColorManagerment(useColorManagement)
.setEnableProtectedContext(enable_protected_contents(false))
.setPrecacheToneMapperShaderOnly(false)
.setSupportsBackgroundBlur(mSupportsBlur)
.setContextPriority(useContextPriority
? renderengine::RenderEngine::ContextPriority::HIGH
: renderengine::RenderEngine::ContextPriority::MEDIUM)
.build()));
mCompositionEngine->setTimeStats(mTimeStats);
LOG_ALWAYS_FATAL_IF(mVrFlingerRequestsDisplay,
"Starting with vr flinger active is not currently supported.");
mCompositionEngine->setHwComposer(getFactory().createHWComposer(getBE().mHwcServiceName));
mCompositionEngine->getHwComposer().setConfiguration(this, getBE().mComposerSequenceId);
// Process any initial hotplug and resulting display changes.
processDisplayHotplugEventsLocked();
const auto display = getDefaultDisplayDeviceLocked();
LOG_ALWAYS_FATAL_IF(!display, "Missing internal display after registering composer callback.");
LOG_ALWAYS_FATAL_IF(!getHwComposer().isConnected(*display->getId()),
"Internal display is disconnected.");
if (useVrFlinger) {
auto vrFlingerRequestDisplayCallback = [this](bool requestDisplay) {
// This callback is called from the vr flinger dispatch thread. We
// need to call signalTransaction(), which requires holding
// mStateLock when we're not on the main thread. Acquiring
// mStateLock from the vr flinger dispatch thread might trigger a
// deadlock in surface flinger (see b/66916578), so post a message
// to be handled on the main thread instead.
static_cast<void>(schedule([=] {
ALOGI("VR request display mode: requestDisplay=%d", requestDisplay);
mVrFlingerRequestsDisplay = requestDisplay;
signalTransaction();
}));
};
mVrFlinger = dvr::VrFlinger::Create(getHwComposer().getComposer(),
getHwComposer()
.fromPhysicalDisplayId(*display->getId())
.value_or(0),
vrFlingerRequestDisplayCallback);
if (!mVrFlinger) {
ALOGE("Failed to start vrflinger");
}
}
// initialize our drawing state
mDrawingState = mCurrentState;
// set initial conditions (e.g. unblank default device)
initializeDisplays();
char primeShaderCache[PROPERTY_VALUE_MAX];
property_get("service.sf.prime_shader_cache", primeShaderCache, "1");
if (atoi(primeShaderCache)) {
getRenderEngine().primeCache();
}
// Inform native graphics APIs whether the present timestamp is supported:
const bool presentFenceReliable =
!getHwComposer().hasCapability(hal::Capability::PRESENT_FENCE_IS_NOT_RELIABLE);
mStartPropertySetThread = getFactory().createStartPropertySetThread(presentFenceReliable);
if (mStartPropertySetThread->Start() != NO_ERROR) {
ALOGE("Run StartPropertySetThread failed!");
}
ALOGV("Done initializing");
}
void SurfaceFlinger::readPersistentProperties() {
Mutex::Autolock _l(mStateLock);
char value[PROPERTY_VALUE_MAX];
property_get("persist.sys.sf.color_saturation", value, "1.0");
mGlobalSaturationFactor = atof(value);
updateColorMatrixLocked();
ALOGV("Saturation is set to %.2f", mGlobalSaturationFactor);
property_get("persist.sys.sf.native_mode", value, "0");
mDisplayColorSetting = static_cast<DisplayColorSetting>(atoi(value));
property_get("persist.sys.sf.color_mode", value, "0");
mForceColorMode = static_cast<ColorMode>(atoi(value));
property_get("persist.sys.sf.disable_blurs", value, "0");
bool disableBlurs = atoi(value);
mDisableBlurs = disableBlurs;
ALOGI_IF(disableBlurs, "Disabling blur effects, user preference.");
}
void SurfaceFlinger::startBootAnim() {
// Start boot animation service by setting a property mailbox
// if property setting thread is already running, Start() will be just a NOP
mStartPropertySetThread->Start();
// Wait until property was set
if (mStartPropertySetThread->join() != NO_ERROR) {
ALOGE("Join StartPropertySetThread failed!");
}
}
size_t SurfaceFlinger::getMaxTextureSize() const {
return getRenderEngine().getMaxTextureSize();
}
size_t SurfaceFlinger::getMaxViewportDims() const {
return getRenderEngine().getMaxViewportDims();
}
// ----------------------------------------------------------------------------
bool SurfaceFlinger::authenticateSurfaceTexture(
const sp<IGraphicBufferProducer>& bufferProducer) const {
Mutex::Autolock _l(mStateLock);
return authenticateSurfaceTextureLocked(bufferProducer);
}
bool SurfaceFlinger::authenticateSurfaceTextureLocked(
const sp<IGraphicBufferProducer>& bufferProducer) const {
sp<IBinder> surfaceTextureBinder(IInterface::asBinder(bufferProducer));
return mGraphicBufferProducerList.count(surfaceTextureBinder.get()) > 0;
}
status_t SurfaceFlinger::getSupportedFrameTimestamps(
std::vector<FrameEvent>* outSupported) const {
*outSupported = {
FrameEvent::REQUESTED_PRESENT,
FrameEvent::ACQUIRE,
FrameEvent::LATCH,
FrameEvent::FIRST_REFRESH_START,
FrameEvent::LAST_REFRESH_START,
FrameEvent::GPU_COMPOSITION_DONE,
FrameEvent::DEQUEUE_READY,
FrameEvent::RELEASE,
};
ConditionalLock _l(mStateLock,
std::this_thread::get_id() != mMainThreadId);
if (!getHwComposer().hasCapability(hal::Capability::PRESENT_FENCE_IS_NOT_RELIABLE)) {
outSupported->push_back(FrameEvent::DISPLAY_PRESENT);
}
return NO_ERROR;
}
status_t SurfaceFlinger::getDisplayState(const sp<IBinder>& displayToken, ui::DisplayState* state) {
if (!displayToken || !state) {
return BAD_VALUE;
}
Mutex::Autolock lock(mStateLock);
const auto display = getDisplayDeviceLocked(displayToken);
if (!display) {
return NAME_NOT_FOUND;
}
state->layerStack = display->getLayerStack();
state->orientation = display->getOrientation();
const Rect viewport = display->getViewport();
state->viewport = viewport.isValid() ? viewport.getSize() : display->getSize();
return NO_ERROR;
}
status_t SurfaceFlinger::getDisplayInfo(const sp<IBinder>& displayToken, DisplayInfo* info) {
if (!displayToken || !info) {
return BAD_VALUE;
}
Mutex::Autolock lock(mStateLock);
const auto display = getDisplayDeviceLocked(displayToken);
if (!display) {
return NAME_NOT_FOUND;
}
if (const auto connectionType = display->getConnectionType())
info->connectionType = *connectionType;
else {
return INVALID_OPERATION;
}
if (mEmulatedDisplayDensity) {
info->density = mEmulatedDisplayDensity;
} else {
info->density = info->connectionType == DisplayConnectionType::Internal
? mInternalDisplayDensity
: FALLBACK_DENSITY;
}
info->density /= ACONFIGURATION_DENSITY_MEDIUM;
info->secure = display->isSecure();
info->deviceProductInfo = getDeviceProductInfoLocked(*display);
return NO_ERROR;
}
status_t SurfaceFlinger::getDisplayConfigs(const sp<IBinder>& displayToken,
Vector<DisplayConfig>* configs) {
if (!displayToken || !configs) {
return BAD_VALUE;
}
Mutex::Autolock lock(mStateLock);
const auto displayId = getPhysicalDisplayIdLocked(displayToken);
if (!displayId) {
return NAME_NOT_FOUND;
}
const bool isInternal = (displayId == getInternalDisplayIdLocked());
configs->clear();
for (const auto& hwConfig : getHwComposer().getConfigs(*displayId)) {
DisplayConfig config;
auto width = hwConfig->getWidth();
auto height = hwConfig->getHeight();
auto xDpi = hwConfig->getDpiX();
auto yDpi = hwConfig->getDpiY();
if (isInternal &&
(internalDisplayOrientation == ui::ROTATION_90 ||
internalDisplayOrientation == ui::ROTATION_270)) {
std::swap(width, height);
std::swap(xDpi, yDpi);
}
config.resolution = ui::Size(width, height);
if (mEmulatedDisplayDensity) {
config.xDpi = mEmulatedDisplayDensity;
config.yDpi = mEmulatedDisplayDensity;
} else {
config.xDpi = xDpi;
config.yDpi = yDpi;
}
const nsecs_t period = hwConfig->getVsyncPeriod();
config.refreshRate = 1e9f / period;
const auto offsets = mPhaseConfiguration->getOffsetsForRefreshRate(config.refreshRate);
config.appVsyncOffset = offsets.late.app;
config.sfVsyncOffset = offsets.late.sf;
config.configGroup = hwConfig->getConfigGroup();
// This is how far in advance a buffer must be queued for
// presentation at a given time. If you want a buffer to appear
// on the screen at time N, you must submit the buffer before
// (N - presentationDeadline).
//
// Normally it's one full refresh period (to give SF a chance to
// latch the buffer), but this can be reduced by configuring a
// DispSync offset. Any additional delays introduced by the hardware
// composer or panel must be accounted for here.
//
// We add an additional 1ms to allow for processing time and
// differences between the ideal and actual refresh rate.
config.presentationDeadline = period - config.sfVsyncOffset + 1000000;
configs->push_back(config);
}
return NO_ERROR;
}
status_t SurfaceFlinger::getDisplayStats(const sp<IBinder>&, DisplayStatInfo* stats) {
if (!stats) {
return BAD_VALUE;
}
mScheduler->getDisplayStatInfo(stats);
return NO_ERROR;
}
int SurfaceFlinger::getActiveConfig(const sp<IBinder>& displayToken) {
int activeConfig;
bool isPrimary;
{
Mutex::Autolock lock(mStateLock);
if (const auto display = getDisplayDeviceLocked(displayToken)) {
activeConfig = display->getActiveConfig().value();
isPrimary = display->isPrimary();
} else {
ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
return NAME_NOT_FOUND;
}
}
if (isPrimary) {
if (const auto config = getDesiredActiveConfig()) {
return config->configId.value();
}
}
return activeConfig;
}
void SurfaceFlinger::setDesiredActiveConfig(const ActiveConfigInfo& info) {
ATRACE_CALL();
auto& refreshRate = mRefreshRateConfigs->getRefreshRateFromConfigId(info.configId);
ALOGV("setDesiredActiveConfig(%s)", refreshRate.getName().c_str());
std::lock_guard<std::mutex> lock(mActiveConfigLock);
if (mDesiredActiveConfigChanged) {
// If a config change is pending, just cache the latest request in
// mDesiredActiveConfig
const Scheduler::ConfigEvent prevConfig = mDesiredActiveConfig.event;
mDesiredActiveConfig = info;
mDesiredActiveConfig.event = mDesiredActiveConfig.event | prevConfig;
} else {
// Check is we are already at the desired config
const auto display = getDefaultDisplayDeviceLocked();
if (!display || display->getActiveConfig() == refreshRate.getConfigId()) {
return;
}
// Initiate a config change.
mDesiredActiveConfigChanged = true;
mDesiredActiveConfig = info;
// This will trigger HWC refresh without resetting the idle timer.
repaintEverythingForHWC();
// Start receiving vsync samples now, so that we can detect a period
// switch.
mScheduler->resyncToHardwareVsync(true, refreshRate.getVsyncPeriod());
// As we called to set period, we will call to onRefreshRateChangeCompleted once
// DispSync model is locked.
mVSyncModulator->onRefreshRateChangeInitiated();
mPhaseConfiguration->setRefreshRateFps(refreshRate.getFps());
mVSyncModulator->setPhaseOffsets(mPhaseConfiguration->getCurrentOffsets());
mScheduler->setConfigChangePending(true);
}
if (mRefreshRateOverlay) {
mRefreshRateOverlay->changeRefreshRate(refreshRate);
}
}
status_t SurfaceFlinger::setActiveConfig(const sp<IBinder>& displayToken, int mode) {
ATRACE_CALL();
if (!displayToken) {
return BAD_VALUE;
}
auto future = schedule([=]() -> status_t {
const auto display = ON_MAIN_THREAD(getDisplayDeviceLocked(displayToken));
if (!display) {
ALOGE("Attempt to set allowed display configs for invalid display token %p",
displayToken.get());
return NAME_NOT_FOUND;
} else if (display->isVirtual()) {
ALOGW("Attempt to set allowed display configs for virtual display");
return INVALID_OPERATION;
} else {
const HwcConfigIndexType config(mode);
const float fps = mRefreshRateConfigs->getRefreshRateFromConfigId(config).getFps();
const scheduler::RefreshRateConfigs::Policy policy{config, {fps, fps}};
constexpr bool kOverridePolicy = false;
return setDesiredDisplayConfigSpecsInternal(display, policy, kOverridePolicy);
}
});
return future.get();
}
void SurfaceFlinger::setActiveConfigInternal() {
ATRACE_CALL();
const auto display = getDefaultDisplayDeviceLocked();
if (!display) {
return;
}
auto& oldRefreshRate =
mRefreshRateConfigs->getRefreshRateFromConfigId(display->getActiveConfig());
std::lock_guard<std::mutex> lock(mActiveConfigLock);
mRefreshRateConfigs->setCurrentConfigId(mUpcomingActiveConfig.configId);
mRefreshRateStats->setConfigMode(mUpcomingActiveConfig.configId);
display->setActiveConfig(mUpcomingActiveConfig.configId);
auto& refreshRate =
mRefreshRateConfigs->getRefreshRateFromConfigId(mUpcomingActiveConfig.configId);
if (refreshRate.getVsyncPeriod() != oldRefreshRate.getVsyncPeriod()) {
mTimeStats->incrementRefreshRateSwitches();
}
mPhaseConfiguration->setRefreshRateFps(refreshRate.getFps());
mVSyncModulator->setPhaseOffsets(mPhaseConfiguration->getCurrentOffsets());
ATRACE_INT("ActiveConfigFPS", refreshRate.getFps());
if (mUpcomingActiveConfig.event != Scheduler::ConfigEvent::None) {
const nsecs_t vsyncPeriod =
mRefreshRateConfigs->getRefreshRateFromConfigId(mUpcomingActiveConfig.configId)
.getVsyncPeriod();
mScheduler->onPrimaryDisplayConfigChanged(mAppConnectionHandle, display->getId()->value,
mUpcomingActiveConfig.configId, vsyncPeriod);
}
}
void SurfaceFlinger::desiredActiveConfigChangeDone() {
std::lock_guard<std::mutex> lock(mActiveConfigLock);
mDesiredActiveConfig.event = Scheduler::ConfigEvent::None;
mDesiredActiveConfigChanged = false;
const auto& refreshRate =
mRefreshRateConfigs->getRefreshRateFromConfigId(mDesiredActiveConfig.configId);
mScheduler->resyncToHardwareVsync(true, refreshRate.getVsyncPeriod());
mPhaseConfiguration->setRefreshRateFps(refreshRate.getFps());
mVSyncModulator->setPhaseOffsets(mPhaseConfiguration->getCurrentOffsets());
mScheduler->setConfigChangePending(false);
}
void SurfaceFlinger::performSetActiveConfig() {
ATRACE_CALL();
ALOGV("performSetActiveConfig");
// Store the local variable to release the lock.
const auto desiredActiveConfig = getDesiredActiveConfig();
if (!desiredActiveConfig) {
// No desired active config pending to be applied
return;
}
auto& refreshRate =
mRefreshRateConfigs->getRefreshRateFromConfigId(desiredActiveConfig->configId);
ALOGV("performSetActiveConfig changing active config to %d(%s)",
refreshRate.getConfigId().value(), refreshRate.getName().c_str());
const auto display = getDefaultDisplayDeviceLocked();
if (!display || display->getActiveConfig() == desiredActiveConfig->configId) {
// display is not valid or we are already in the requested mode
// on both cases there is nothing left to do
desiredActiveConfigChangeDone();
return;
}
// Desired active config was set, it is different than the config currently in use, however
// allowed configs might have change by the time we process the refresh.
// Make sure the desired config is still allowed
if (!isDisplayConfigAllowed(desiredActiveConfig->configId)) {
desiredActiveConfigChangeDone();
return;
}
mUpcomingActiveConfig = *desiredActiveConfig;
const auto displayId = display->getId();
LOG_ALWAYS_FATAL_IF(!displayId);
ATRACE_INT("ActiveConfigFPS_HWC", refreshRate.getFps());
// TODO(b/142753666) use constrains
hal::VsyncPeriodChangeConstraints constraints;
constraints.desiredTimeNanos = systemTime();
constraints.seamlessRequired = false;
hal::VsyncPeriodChangeTimeline outTimeline;
auto status =
getHwComposer().setActiveConfigWithConstraints(*displayId,
mUpcomingActiveConfig.configId.value(),
constraints, &outTimeline);
if (status != NO_ERROR) {
// setActiveConfigWithConstraints may fail if a hotplug event is just about
// to be sent. We just log the error in this case.
ALOGW("setActiveConfigWithConstraints failed: %d", status);
return;
}
mScheduler->onNewVsyncPeriodChangeTimeline(outTimeline);
// Scheduler will submit an empty frame to HWC if needed.
mSetActiveConfigPending = true;
}
status_t SurfaceFlinger::getDisplayColorModes(const sp<IBinder>& displayToken,
Vector<ColorMode>* outColorModes) {
if (!displayToken || !outColorModes) {
return BAD_VALUE;
}
std::vector<ColorMode> modes;
bool isInternalDisplay = false;
{
ConditionalLock lock(mStateLock, std::this_thread::get_id() != mMainThreadId);
const auto displayId = getPhysicalDisplayIdLocked(displayToken);
if (!displayId) {
return NAME_NOT_FOUND;
}
modes = getHwComposer().getColorModes(*displayId);
isInternalDisplay = displayId == getInternalDisplayIdLocked();
}
outColorModes->clear();
// If it's built-in display and the configuration claims it's not wide color capable,
// filter out all wide color modes. The typical reason why this happens is that the
// hardware is not good enough to support GPU composition of wide color, and thus the
// OEMs choose to disable this capability.
if (isInternalDisplay && !hasWideColorDisplay) {
std::remove_copy_if(modes.cbegin(), modes.cend(), std::back_inserter(*outColorModes),
isWideColorMode);
} else {
std::copy(modes.cbegin(), modes.cend(), std::back_inserter(*outColorModes));
}
return NO_ERROR;
}
status_t SurfaceFlinger::getDisplayNativePrimaries(const sp<IBinder>& displayToken,
ui::DisplayPrimaries &primaries) {
if (!displayToken) {
return BAD_VALUE;
}
// Currently we only support this API for a single internal display.
if (getInternalDisplayToken() != displayToken) {
return NAME_NOT_FOUND;
}
memcpy(&primaries, &mInternalDisplayPrimaries, sizeof(ui::DisplayPrimaries));
return NO_ERROR;
}
ColorMode SurfaceFlinger::getActiveColorMode(const sp<IBinder>& displayToken) {
Mutex::Autolock lock(mStateLock);
if (const auto display = getDisplayDeviceLocked(displayToken)) {
return display->getCompositionDisplay()->getState().colorMode;
}
return static_cast<ColorMode>(BAD_VALUE);
}
status_t SurfaceFlinger::setActiveColorMode(const sp<IBinder>& displayToken, ColorMode mode) {
schedule([=]() MAIN_THREAD {
Vector<ColorMode> modes;
getDisplayColorModes(displayToken, &modes);
bool exists = std::find(std::begin(modes), std::end(modes), mode) != std::end(modes);
if (mode < ColorMode::NATIVE || !exists) {
ALOGE("Attempt to set invalid active color mode %s (%d) for display token %p",
decodeColorMode(mode).c_str(), mode, displayToken.get());
return;
}
const auto display = getDisplayDeviceLocked(displayToken);
if (!display) {
ALOGE("Attempt to set active color mode %s (%d) for invalid display token %p",
decodeColorMode(mode).c_str(), mode, displayToken.get());
} else if (display->isVirtual()) {
ALOGW("Attempt to set active color mode %s (%d) for virtual display",
decodeColorMode(mode).c_str(), mode);
} else {
display->getCompositionDisplay()->setColorProfile(
compositionengine::Output::ColorProfile{mode, Dataspace::UNKNOWN,
RenderIntent::COLORIMETRIC,
Dataspace::UNKNOWN});
}
}).wait();
return NO_ERROR;
}
status_t SurfaceFlinger::getAutoLowLatencyModeSupport(const sp<IBinder>& displayToken,
bool* outSupport) const {
if (!displayToken) {
return BAD_VALUE;
}
Mutex::Autolock lock(mStateLock);
const auto displayId = getPhysicalDisplayIdLocked(displayToken);
if (!displayId) {
return NAME_NOT_FOUND;
}
*outSupport =
getHwComposer().hasDisplayCapability(*displayId,
hal::DisplayCapability::AUTO_LOW_LATENCY_MODE);
return NO_ERROR;
}
void SurfaceFlinger::setAutoLowLatencyMode(const sp<IBinder>& displayToken, bool on) {
static_cast<void>(schedule([=]() MAIN_THREAD {
if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
getHwComposer().setAutoLowLatencyMode(*displayId, on);
} else {
ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
}
}));
}
status_t SurfaceFlinger::getGameContentTypeSupport(const sp<IBinder>& displayToken,
bool* outSupport) const {
if (!displayToken) {
return BAD_VALUE;
}
Mutex::Autolock lock(mStateLock);
const auto displayId = getPhysicalDisplayIdLocked(displayToken);
if (!displayId) {
return NAME_NOT_FOUND;
}
std::vector<hal::ContentType> types;
getHwComposer().getSupportedContentTypes(*displayId, &types);
*outSupport = std::any_of(types.begin(), types.end(),
[](auto type) { return type == hal::ContentType::GAME; });
return NO_ERROR;
}
void SurfaceFlinger::setGameContentType(const sp<IBinder>& displayToken, bool on) {
static_cast<void>(schedule([=]() MAIN_THREAD {
if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
const auto type = on ? hal::ContentType::GAME : hal::ContentType::NONE;
getHwComposer().setContentType(*displayId, type);
} else {
ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
}
}));
}
status_t SurfaceFlinger::clearAnimationFrameStats() {
Mutex::Autolock _l(mStateLock);
mAnimFrameTracker.clearStats();
return NO_ERROR;
}
status_t SurfaceFlinger::getAnimationFrameStats(FrameStats* outStats) const {
Mutex::Autolock _l(mStateLock);
mAnimFrameTracker.getStats(outStats);
return NO_ERROR;
}
status_t SurfaceFlinger::getHdrCapabilities(const sp<IBinder>& displayToken,
HdrCapabilities* outCapabilities) const {
Mutex::Autolock lock(mStateLock);
const auto display = getDisplayDeviceLocked(displayToken);
if (!display) {
ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
return NAME_NOT_FOUND;
}
// At this point the DisplayDevice should already be set up,
// meaning the luminance information is already queried from
// hardware composer and stored properly.
const HdrCapabilities& capabilities = display->getHdrCapabilities();
*outCapabilities = HdrCapabilities(capabilities.getSupportedHdrTypes(),
capabilities.getDesiredMaxLuminance(),
capabilities.getDesiredMaxAverageLuminance(),
capabilities.getDesiredMinLuminance());
return NO_ERROR;
}
std::optional<DeviceProductInfo> SurfaceFlinger::getDeviceProductInfoLocked(
const DisplayDevice& display) const {
// TODO(b/149075047): Populate DeviceProductInfo on hotplug and store it in DisplayDevice to
// avoid repetitive HAL IPC and EDID parsing.
const auto displayId = display.getId();
LOG_FATAL_IF(!displayId);
const auto hwcDisplayId = getHwComposer().fromPhysicalDisplayId(*displayId);
LOG_FATAL_IF(!hwcDisplayId);
uint8_t port;
DisplayIdentificationData data;
if (!getHwComposer().getDisplayIdentificationData(*hwcDisplayId, &port, &data)) {
ALOGV("%s: No identification data.", __FUNCTION__);
return {};
}
const auto info = parseDisplayIdentificationData(port, data);
if (!info) {
return {};
}
return info->deviceProductInfo;
}
status_t SurfaceFlinger::getDisplayedContentSamplingAttributes(const sp<IBinder>& displayToken,
ui::PixelFormat* outFormat,
ui::Dataspace* outDataspace,
uint8_t* outComponentMask) const {
if (!outFormat || !outDataspace || !outComponentMask) {
return BAD_VALUE;
}
Mutex::Autolock lock(mStateLock);
const auto displayId = getPhysicalDisplayIdLocked(displayToken);
if (!displayId) {
return NAME_NOT_FOUND;
}
return getHwComposer().getDisplayedContentSamplingAttributes(*displayId, outFormat,
outDataspace, outComponentMask);
}
status_t SurfaceFlinger::setDisplayContentSamplingEnabled(const sp<IBinder>& displayToken,
bool enable, uint8_t componentMask,
uint64_t maxFrames) {
return schedule([=]() MAIN_THREAD -> status_t {
if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
return getHwComposer().setDisplayContentSamplingEnabled(*displayId, enable,
componentMask,
maxFrames);
} else {
ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
return NAME_NOT_FOUND;
}
})
.get();
}
status_t SurfaceFlinger::getDisplayedContentSample(const sp<IBinder>& displayToken,
uint64_t maxFrames, uint64_t timestamp,
DisplayedFrameStats* outStats) const {
Mutex::Autolock lock(mStateLock);
const auto displayId = getPhysicalDisplayIdLocked(displayToken);
if (!displayId) {
return NAME_NOT_FOUND;
}
return getHwComposer().getDisplayedContentSample(*displayId, maxFrames, timestamp, outStats);
}
status_t SurfaceFlinger::getProtectedContentSupport(bool* outSupported) const {
if (!outSupported) {
return BAD_VALUE;
}
*outSupported = getRenderEngine().supportsProtectedContent();
return NO_ERROR;
}
status_t SurfaceFlinger::isWideColorDisplay(const sp<IBinder>& displayToken,
bool* outIsWideColorDisplay) const {
if (!displayToken || !outIsWideColorDisplay) {
return BAD_VALUE;
}
Mutex::Autolock lock(mStateLock);
const auto display = getDisplayDeviceLocked(displayToken);
if (!display) {
return NAME_NOT_FOUND;
}
*outIsWideColorDisplay =
display->isPrimary() ? hasWideColorDisplay : display->hasWideColorGamut();
return NO_ERROR;
}
status_t SurfaceFlinger::enableVSyncInjections(bool enable) {
schedule([=] {
Mutex::Autolock lock(mStateLock);
if (const auto handle = mScheduler->enableVSyncInjection(enable)) {
mEventQueue->setEventConnection(
mScheduler->getEventConnection(enable ? handle : mSfConnectionHandle));
}
}).wait();
return NO_ERROR;
}
status_t SurfaceFlinger::injectVSync(nsecs_t when) {
Mutex::Autolock lock(mStateLock);
return mScheduler->injectVSync(when, calculateExpectedPresentTime(when)) ? NO_ERROR : BAD_VALUE;
}
status_t SurfaceFlinger::getLayerDebugInfo(std::vector<LayerDebugInfo>* outLayers) {
outLayers->clear();
schedule([=] {
const auto display = ON_MAIN_THREAD(getDefaultDisplayDeviceLocked());
mDrawingState.traverseInZOrder([&](Layer* layer) {
outLayers->push_back(layer->getLayerDebugInfo(display.get()));
});
}).wait();
return NO_ERROR;
}
status_t SurfaceFlinger::getCompositionPreference(
Dataspace* outDataspace, ui::PixelFormat* outPixelFormat,
Dataspace* outWideColorGamutDataspace,
ui::PixelFormat* outWideColorGamutPixelFormat) const {
*outDataspace = mDefaultCompositionDataspace;
*outPixelFormat = defaultCompositionPixelFormat;
*outWideColorGamutDataspace = mWideColorGamutCompositionDataspace;
*outWideColorGamutPixelFormat = wideColorGamutCompositionPixelFormat;
return NO_ERROR;
}
status_t SurfaceFlinger::addRegionSamplingListener(const Rect& samplingArea,
const sp<IBinder>& stopLayerHandle,
const sp<IRegionSamplingListener>& listener) {
if (!listener || samplingArea == Rect::INVALID_RECT) {
return BAD_VALUE;
}
const wp<Layer> stopLayer = fromHandle(stopLayerHandle);
mRegionSamplingThread->addListener(samplingArea, stopLayer, listener);
return NO_ERROR;
}
status_t SurfaceFlinger::removeRegionSamplingListener(const sp<IRegionSamplingListener>& listener) {
if (!listener) {
return BAD_VALUE;
}
mRegionSamplingThread->removeListener(listener);
return NO_ERROR;
}
status_t SurfaceFlinger::getDisplayBrightnessSupport(const sp<IBinder>& displayToken,
bool* outSupport) const {
if (!displayToken || !outSupport) {
return BAD_VALUE;
}
Mutex::Autolock lock(mStateLock);
const auto displayId = getPhysicalDisplayIdLocked(displayToken);
if (!displayId) {
return NAME_NOT_FOUND;
}
*outSupport =
getHwComposer().hasDisplayCapability(*displayId, hal::DisplayCapability::BRIGHTNESS);
return NO_ERROR;
}
status_t SurfaceFlinger::setDisplayBrightness(const sp<IBinder>& displayToken, float brightness) {
if (!displayToken) {
return BAD_VALUE;
}
return promise::chain(schedule([=]() MAIN_THREAD {
if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
return getHwComposer().setDisplayBrightness(*displayId, brightness);
} else {
ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
return promise::yield<status_t>(NAME_NOT_FOUND);
}
}))
.then([](std::future<status_t> task) { return task; })
.get();
}
status_t SurfaceFlinger::notifyPowerHint(int32_t hintId) {
PowerHint powerHint = static_cast<PowerHint>(hintId);
if (powerHint == PowerHint::INTERACTION) {
mScheduler->notifyTouchEvent();
}
return NO_ERROR;
}
// ----------------------------------------------------------------------------
sp<IDisplayEventConnection> SurfaceFlinger::createDisplayEventConnection(
ISurfaceComposer::VsyncSource vsyncSource, ISurfaceComposer::ConfigChanged configChanged) {
const auto& handle =
vsyncSource == eVsyncSourceSurfaceFlinger ? mSfConnectionHandle : mAppConnectionHandle;
return mScheduler->createDisplayEventConnection(handle, configChanged);
}
void SurfaceFlinger::signalTransaction() {
mScheduler->resetIdleTimer();
mPowerAdvisor.notifyDisplayUpdateImminent();
mEventQueue->invalidate();
}
void SurfaceFlinger::signalLayerUpdate() {
mScheduler->resetIdleTimer();
mPowerAdvisor.notifyDisplayUpdateImminent();
mEventQueue->invalidate();
}
void SurfaceFlinger::signalRefresh() {
mRefreshPending = true;
mEventQueue->refresh();
}
nsecs_t SurfaceFlinger::getVsyncPeriod() const {
const auto displayId = getInternalDisplayIdLocked();
if (!displayId || !getHwComposer().isConnected(*displayId)) {
return 0;
}
return getHwComposer().getDisplayVsyncPeriod(*displayId);
}
void SurfaceFlinger::onVsyncReceived(int32_t sequenceId, hal::HWDisplayId hwcDisplayId,
int64_t timestamp,
std::optional<hal::VsyncPeriodNanos> vsyncPeriod) {
ATRACE_NAME("SF onVsync");
Mutex::Autolock lock(mStateLock);
// Ignore any vsyncs from a previous hardware composer.
if (sequenceId != getBE().mComposerSequenceId) {
return;
}
if (!getHwComposer().onVsync(hwcDisplayId, timestamp)) {
return;
}
if (hwcDisplayId != getHwComposer().getInternalHwcDisplayId()) {
// For now, we don't do anything with external display vsyncs.
return;
}
bool periodFlushed = false;
mScheduler->addResyncSample(timestamp, vsyncPeriod, &periodFlushed);
if (periodFlushed) {
mVSyncModulator->onRefreshRateChangeCompleted();
}
}
void SurfaceFlinger::getCompositorTiming(CompositorTiming* compositorTiming) {
std::lock_guard<std::mutex> lock(getBE().mCompositorTimingLock);
*compositorTiming = getBE().mCompositorTiming;
}
bool SurfaceFlinger::isDisplayConfigAllowed(HwcConfigIndexType configId) const {
return mRefreshRateConfigs->isConfigAllowed(configId);
}
void SurfaceFlinger::changeRefreshRateLocked(const RefreshRate& refreshRate,
Scheduler::ConfigEvent event) {
const auto display = getDefaultDisplayDeviceLocked();
if (!display || mBootStage != BootStage::FINISHED) {
return;
}
ATRACE_CALL();
// Don't do any updating if the current fps is the same as the new one.
if (!isDisplayConfigAllowed(refreshRate.getConfigId())) {
ALOGV("Skipping config %d as it is not part of allowed configs",
refreshRate.getConfigId().value());
return;
}
setDesiredActiveConfig({refreshRate.getConfigId(), event});
}
void SurfaceFlinger::onHotplugReceived(int32_t sequenceId, hal::HWDisplayId hwcDisplayId,
hal::Connection connection) {
ALOGV("%s(%d, %" PRIu64 ", %s)", __FUNCTION__, sequenceId, hwcDisplayId,
connection == hal::Connection::CONNECTED ? "connected" : "disconnected");
// Ignore events that do not have the right sequenceId.
if (sequenceId != getBE().mComposerSequenceId) {
return;
}
// Only lock if we're not on the main thread. This function is normally
// called on a hwbinder thread, but for the primary display it's called on
// the main thread with the state lock already held, so don't attempt to
// acquire it here.
ConditionalLock lock(mStateLock, std::this_thread::get_id() != mMainThreadId);
mPendingHotplugEvents.emplace_back(HotplugEvent{hwcDisplayId, connection});
if (std::this_thread::get_id() == mMainThreadId) {
// Process all pending hot plug events immediately if we are on the main thread.
processDisplayHotplugEventsLocked();
}
setTransactionFlags(eDisplayTransactionNeeded);
}
void SurfaceFlinger::onVsyncPeriodTimingChangedReceived(
int32_t sequenceId, hal::HWDisplayId /*display*/,
const hal::VsyncPeriodChangeTimeline& updatedTimeline) {
Mutex::Autolock lock(mStateLock);
if (sequenceId != getBE().mComposerSequenceId) {
return;
}
mScheduler->onNewVsyncPeriodChangeTimeline(updatedTimeline);
}
void SurfaceFlinger::onSeamlessPossible(int32_t /*sequenceId*/, hal::HWDisplayId /*display*/) {
// TODO(b/142753666): use constraints when calling to setActiveConfigWithConstrains and
// use this callback to know when to retry in case of SEAMLESS_NOT_POSSIBLE.
}
void SurfaceFlinger::onRefreshReceived(int sequenceId, hal::HWDisplayId /*hwcDisplayId*/) {
Mutex::Autolock lock(mStateLock);
if (sequenceId != getBE().mComposerSequenceId) {
return;
}
repaintEverythingForHWC();
}
void SurfaceFlinger::setPrimaryVsyncEnabled(bool enabled) {
ATRACE_CALL();
// Enable / Disable HWVsync from the main thread to avoid race conditions with
// display power state.
static_cast<void>(schedule([=]() MAIN_THREAD { setPrimaryVsyncEnabledInternal(enabled); }));
}
void SurfaceFlinger::setPrimaryVsyncEnabledInternal(bool enabled) {
ATRACE_CALL();
mHWCVsyncPendingState = enabled ? hal::Vsync::ENABLE : hal::Vsync::DISABLE;
if (const auto displayId = getInternalDisplayIdLocked()) {
sp<DisplayDevice> display = getDefaultDisplayDeviceLocked();
if (display && display->isPoweredOn()) {
getHwComposer().setVsyncEnabled(*displayId, mHWCVsyncPendingState);
}
}
}
void SurfaceFlinger::resetDisplayState() {
mScheduler->disableHardwareVsync(true);
// Clear the drawing state so that the logic inside of
// handleTransactionLocked will fire. It will determine the delta between
// mCurrentState and mDrawingState and re-apply all changes when we make the
// transition.
mDrawingState.displays.clear();
mDisplays.clear();
}
void SurfaceFlinger::updateVrFlinger() {
ATRACE_CALL();
if (!mVrFlinger)
return;
bool vrFlingerRequestsDisplay = mVrFlingerRequestsDisplay;
if (vrFlingerRequestsDisplay == getHwComposer().isUsingVrComposer()) {
return;
}
if (vrFlingerRequestsDisplay && !getHwComposer().getComposer()->isRemote()) {
ALOGE("Vr flinger is only supported for remote hardware composer"
" service connections. Ignoring request to transition to vr"
" flinger.");
mVrFlingerRequestsDisplay = false;
return;
}
Mutex::Autolock _l(mStateLock);
sp<DisplayDevice> display = getDefaultDisplayDeviceLocked();
LOG_ALWAYS_FATAL_IF(!display);
const hal::PowerMode currentDisplayPowerMode = display->getPowerMode();
// Clear out all the output layers from the composition engine for all
// displays before destroying the hardware composer interface. This ensures
// any HWC layers are destroyed through that interface before it becomes
// invalid.
for (const auto& [token, displayDevice] : mDisplays) {
displayDevice->getCompositionDisplay()->clearOutputLayers();
}
// This DisplayDevice will no longer be relevant once resetDisplayState() is
// called below. Clear the reference now so we don't accidentally use it
// later.
display.clear();
if (!vrFlingerRequestsDisplay) {
mVrFlinger->SeizeDisplayOwnership();
}
resetDisplayState();
// Delete the current instance before creating the new one
mCompositionEngine->setHwComposer(std::unique_ptr<HWComposer>());
mCompositionEngine->setHwComposer(getFactory().createHWComposer(
vrFlingerRequestsDisplay ? "vr" : getBE().mHwcServiceName));
mCompositionEngine->getHwComposer().setConfiguration(this, ++getBE().mComposerSequenceId);
LOG_ALWAYS_FATAL_IF(!getHwComposer().getComposer()->isRemote(),
"Switched to non-remote hardware composer");
if (vrFlingerRequestsDisplay) {
mVrFlinger->GrantDisplayOwnership();
}
mVisibleRegionsDirty = true;
invalidateHwcGeometry();
// Re-enable default display.
display = getDefaultDisplayDeviceLocked();
LOG_ALWAYS_FATAL_IF(!display);
setPowerModeInternal(display, currentDisplayPowerMode);
// Reset the timing values to account for the period of the swapped in HWC
const nsecs_t vsyncPeriod = getVsyncPeriod();
mAnimFrameTracker.setDisplayRefreshPeriod(vsyncPeriod);
// The present fences returned from vr_hwc are not an accurate
// representation of vsync times.
mScheduler->setIgnorePresentFences(getHwComposer().isUsingVrComposer() || !hasSyncFramework);
// Use phase of 0 since phase is not known.
// Use latency of 0, which will snap to the ideal latency.
DisplayStatInfo stats{0 /* vsyncTime */, vsyncPeriod};
setCompositorTimingSnapped(stats, 0);
mScheduler->resyncToHardwareVsync(false, vsyncPeriod);
mRepaintEverything = true;
setTransactionFlags(eDisplayTransactionNeeded);
}
sp<Fence> SurfaceFlinger::previousFrameFence() {
// We are storing the last 2 present fences. If sf's phase offset is to be
// woken up before the actual vsync but targeting the next vsync, we need to check
// fence N-2
return mVSyncModulator->getOffsets().sf > 0 ? mPreviousPresentFences[0]
: mPreviousPresentFences[1];
}
bool SurfaceFlinger::previousFramePending(int graceTimeMs) {
ATRACE_CALL();
const sp<Fence>& fence = previousFrameFence();
if (fence == Fence::NO_FENCE) {
return false;
}
const status_t status = fence->wait(graceTimeMs);
// This is the same as Fence::Status::Unsignaled, but it saves a getStatus() call,
// which calls wait(0) again internally
return status == -ETIME;
}
nsecs_t SurfaceFlinger::previousFramePresentTime() {
const sp<Fence>& fence = previousFrameFence();
if (fence == Fence::NO_FENCE) {
return Fence::SIGNAL_TIME_INVALID;
}
return fence->getSignalTime();
}
nsecs_t SurfaceFlinger::calculateExpectedPresentTime(nsecs_t now) const {
DisplayStatInfo stats;
mScheduler->getDisplayStatInfo(&stats);
const nsecs_t presentTime = mScheduler->getDispSyncExpectedPresentTime(now);
// Inflate the expected present time if we're targetting the next vsync.
return mVSyncModulator->getOffsets().sf > 0 ? presentTime : presentTime + stats.vsyncPeriod;
}
void SurfaceFlinger::onMessageReceived(int32_t what, nsecs_t expectedVSyncTime) {
ATRACE_CALL();
switch (what) {
case MessageQueue::INVALIDATE: {
onMessageInvalidate(expectedVSyncTime);
break;
}
case MessageQueue::REFRESH: {
onMessageRefresh();
break;
}
}
}
void SurfaceFlinger::onMessageInvalidate(nsecs_t expectedVSyncTime) {
ATRACE_CALL();
const nsecs_t frameStart = systemTime();
// calculate the expected present time once and use the cached
// value throughout this frame to make sure all layers are
// seeing this same value.
const nsecs_t lastExpectedPresentTime = mExpectedPresentTime.load();
mExpectedPresentTime = expectedVSyncTime;
// When Backpressure propagation is enabled we want to give a small grace period
// for the present fence to fire instead of just giving up on this frame to handle cases
// where present fence is just about to get signaled.
const int graceTimeForPresentFenceMs =
(mPropagateBackpressure &&
(mPropagateBackpressureClientComposition || !mHadClientComposition))
? 1
: 0;
// Pending frames may trigger backpressure propagation.
const TracedOrdinal<bool> framePending = {"PrevFramePending",
previousFramePending(graceTimeForPresentFenceMs)};
// Frame missed counts for metrics tracking.
// A frame is missed if the prior frame is still pending. If no longer pending,
// then we still count the frame as missed if the predicted present time
// was further in the past than when the fence actually fired.
// Add some slop to correct for drift. This should generally be
// smaller than a typical frame duration, but should not be so small
// that it reports reasonable drift as a missed frame.
DisplayStatInfo stats;
mScheduler->getDisplayStatInfo(&stats);
const nsecs_t frameMissedSlop = stats.vsyncPeriod / 2;
const nsecs_t previousPresentTime = previousFramePresentTime();
const TracedOrdinal<bool> frameMissed = {"PrevFrameMissed",
framePending ||
(previousPresentTime >= 0 &&
(lastExpectedPresentTime <
previousPresentTime - frameMissedSlop))};
const TracedOrdinal<bool> hwcFrameMissed = {"PrevHwcFrameMissed",
mHadDeviceComposition && frameMissed};
const TracedOrdinal<bool> gpuFrameMissed = {"PrevGpuFrameMissed",
mHadClientComposition && frameMissed};
if (frameMissed) {
mFrameMissedCount++;
mTimeStats->incrementMissedFrames();
if (mMissedFrameJankCount == 0) {
mMissedFrameJankStart = systemTime();
}
mMissedFrameJankCount++;
}
if (hwcFrameMissed) {
mHwcFrameMissedCount++;
}
if (gpuFrameMissed) {
mGpuFrameMissedCount++;
}
// If we are in the middle of a config change and the fence hasn't
// fired yet just wait for the next invalidate
if (mSetActiveConfigPending) {
if (framePending) {
mEventQueue->invalidate();
return;
}
// We received the present fence from the HWC, so we assume it successfully updated
// the config, hence we update SF.
mSetActiveConfigPending = false;
ON_MAIN_THREAD(setActiveConfigInternal());
}
if (framePending && mPropagateBackpressure) {
if ((hwcFrameMissed && !gpuFrameMissed) || mPropagateBackpressureClientComposition) {
signalLayerUpdate();
return;
}
}
// Our jank window is always at least 100ms since we missed a
// frame...
static constexpr nsecs_t kMinJankyDuration =
std::chrono::duration_cast<std::chrono::nanoseconds>(100ms).count();
// ...but if it's larger than 1s then we missed the trace cutoff.
static constexpr nsecs_t kMaxJankyDuration =
std::chrono::duration_cast<std::chrono::nanoseconds>(1s).count();
nsecs_t jankDurationToUpload = -1;
// If we're in a user build then don't push any atoms
if (!mIsUserBuild && mMissedFrameJankCount > 0) {
const auto display = ON_MAIN_THREAD(getDefaultDisplayDeviceLocked());
// Only report jank when the display is on, as displays in DOZE
// power mode may operate at a different frame rate than is
// reported in their config, which causes noticeable (but less
// severe) jank.
if (display && display->getPowerMode() == hal::PowerMode::ON) {
const nsecs_t currentTime = systemTime();
const nsecs_t jankDuration = currentTime - mMissedFrameJankStart;
if (jankDuration > kMinJankyDuration && jankDuration < kMaxJankyDuration) {
jankDurationToUpload = jankDuration;
}
// We either reported a jank event or we missed the trace
// window, so clear counters here.
if (jankDuration > kMinJankyDuration) {
mMissedFrameJankCount = 0;
mMissedFrameJankStart = 0;
}
}
}
// Now that we're going to make it to the handleMessageTransaction()
// call below it's safe to call updateVrFlinger(), which will
// potentially trigger a display handoff.
updateVrFlinger();
if (mTracingEnabledChanged) {
mTracingEnabled = mTracing.isEnabled();
mTracingEnabledChanged = false;
}
bool refreshNeeded;
{
ConditionalLockGuard<std::mutex> lock(mTracingLock, mTracingEnabled);
refreshNeeded = handleMessageTransaction();
refreshNeeded |= handleMessageInvalidate();
if (mTracingEnabled) {
mAddCompositionStateToTrace =
mTracing.flagIsSetLocked(SurfaceTracing::TRACE_COMPOSITION);
if (mVisibleRegionsDirty && !mAddCompositionStateToTrace) {
mTracing.notifyLocked("visibleRegionsDirty");
}
}
}
// Layers need to get updated (in the previous line) before we can use them for
// choosing the refresh rate.
// Hold mStateLock as chooseRefreshRateForContent promotes wp<Layer> to sp<Layer>
// and may eventually call to ~Layer() if it holds the last reference
{
Mutex::Autolock _l(mStateLock);
mScheduler->chooseRefreshRateForContent();
}
ON_MAIN_THREAD(performSetActiveConfig());
updateCursorAsync();
updateInputFlinger();
refreshNeeded |= mRepaintEverything;
if (refreshNeeded && CC_LIKELY(mBootStage != BootStage::BOOTLOADER)) {
mLastJankDuration = jankDurationToUpload;
// Signal a refresh if a transaction modified the window state,
// a new buffer was latched, or if HWC has requested a full
// repaint
if (mFrameStartTime <= 0) {
// We should only use the time of the first invalidate
// message that signals a refresh as the beginning of the
// frame. Otherwise the real frame time will be
// underestimated.
mFrameStartTime = frameStart;
}
signalRefresh();
}
}
bool SurfaceFlinger::handleMessageTransaction() {
ATRACE_CALL();
uint32_t transactionFlags = peekTransactionFlags();
bool flushedATransaction = flushTransactionQueues();
bool runHandleTransaction =
(transactionFlags && (transactionFlags != eTransactionFlushNeeded)) ||
flushedATransaction ||
mForceTraversal;
if (runHandleTransaction) {
handleTransaction(eTransactionMask);
} else {
getTransactionFlags(eTransactionFlushNeeded);
}
if (transactionFlushNeeded()) {
setTransactionFlags(eTransactionFlushNeeded);
}
return runHandleTransaction;
}
void SurfaceFlinger::onMessageRefresh() {
ATRACE_CALL();
mRefreshPending = false;
compositionengine::CompositionRefreshArgs refreshArgs;
const auto& displays = ON_MAIN_THREAD(mDisplays);
refreshArgs.outputs.reserve(displays.size());
for (const auto& [_, display] : displays) {
refreshArgs.outputs.push_back(display->getCompositionDisplay());
}
mDrawingState.traverseInZOrder([&refreshArgs](Layer* layer) {
if (auto layerFE = layer->getCompositionEngineLayerFE())
refreshArgs.layers.push_back(layerFE);
});
refreshArgs.layersWithQueuedFrames.reserve(mLayersWithQueuedFrames.size());
for (sp<Layer> layer : mLayersWithQueuedFrames) {
if (auto layerFE = layer->getCompositionEngineLayerFE())
refreshArgs.layersWithQueuedFrames.push_back(layerFE);
}
refreshArgs.repaintEverything = mRepaintEverything.exchange(false);
refreshArgs.outputColorSetting = useColorManagement
? mDisplayColorSetting
: compositionengine::OutputColorSetting::kUnmanaged;
refreshArgs.colorSpaceAgnosticDataspace = mColorSpaceAgnosticDataspace;
refreshArgs.forceOutputColorMode = mForceColorMode;
refreshArgs.updatingOutputGeometryThisFrame = mVisibleRegionsDirty;
refreshArgs.updatingGeometryThisFrame = mGeometryInvalid || mVisibleRegionsDirty;
refreshArgs.blursAreExpensive = mBlursAreExpensive;
refreshArgs.internalDisplayRotationFlags = DisplayDevice::getPrimaryDisplayRotationFlags();
if (CC_UNLIKELY(mDrawingState.colorMatrixChanged)) {
refreshArgs.colorTransformMatrix = mDrawingState.colorMatrix;
mDrawingState.colorMatrixChanged = false;
}
refreshArgs.devOptForceClientComposition = mDebugDisableHWC || mDebugRegion;
if (mDebugRegion != 0) {
refreshArgs.devOptFlashDirtyRegionsDelay =
std::chrono::milliseconds(mDebugRegion > 1 ? mDebugRegion : 0);
}
mGeometryInvalid = false;
// Store the present time just before calling to the composition engine so we could notify
// the scheduler.
const auto presentTime = systemTime();
mCompositionEngine->present(refreshArgs);
mTimeStats->recordFrameDuration(mFrameStartTime, systemTime());
// Reset the frame start time now that we've recorded this frame.
mFrameStartTime = 0;
mScheduler->onDisplayRefreshed(presentTime);
postFrame();
postComposition();
const bool prevFrameHadDeviceComposition = mHadDeviceComposition;
mHadClientComposition = std::any_of(displays.cbegin(), displays.cend(), [](const auto& pair) {
const auto& state = pair.second->getCompositionDisplay()->getState();
return state.usesClientComposition && !state.reusedClientComposition;
});
mHadDeviceComposition = std::any_of(displays.cbegin(), displays.cend(), [](const auto& pair) {
const auto& state = pair.second->getCompositionDisplay()->getState();
return state.usesDeviceComposition;
});
mReusedClientComposition =
std::any_of(displays.cbegin(), displays.cend(), [](const auto& pair) {
const auto& state = pair.second->getCompositionDisplay()->getState();
return state.reusedClientComposition;
});
// Only report a strategy change if we move in and out of composition with hw overlays
if (prevFrameHadDeviceComposition != mHadDeviceComposition) {
mTimeStats->incrementCompositionStrategyChanges();
}
mVSyncModulator->onRefreshed(mHadClientComposition);
mLayersWithQueuedFrames.clear();
if (mVisibleRegionsDirty) {
mVisibleRegionsDirty = false;
if (mTracingEnabled && mAddCompositionStateToTrace) {
mTracing.notify("visibleRegionsDirty");
}
}
if (mCompositionEngine->needsAnotherUpdate()) {
signalLayerUpdate();
}
}
bool SurfaceFlinger::handleMessageInvalidate() {
ATRACE_CALL();
bool refreshNeeded = handlePageFlip();
if (mVisibleRegionsDirty) {
computeLayerBounds();
}
for (auto& layer : mLayersPendingRefresh) {
Region visibleReg;
visibleReg.set(layer->getScreenBounds());
invalidateLayerStack(layer, visibleReg);
}
mLayersPendingRefresh.clear();
return refreshNeeded;
}
void SurfaceFlinger::updateCompositorTiming(const DisplayStatInfo& stats, nsecs_t compositeTime,
std::shared_ptr<FenceTime>& presentFenceTime) {
// Update queue of past composite+present times and determine the
// most recently known composite to present latency.
getBE().mCompositePresentTimes.push({compositeTime, presentFenceTime});
nsecs_t compositeToPresentLatency = -1;
while (!getBE().mCompositePresentTimes.empty()) {
SurfaceFlingerBE::CompositePresentTime& cpt = getBE().mCompositePresentTimes.front();
// Cached values should have been updated before calling this method,
// which helps avoid duplicate syscalls.
nsecs_t displayTime = cpt.display->getCachedSignalTime();
if (displayTime == Fence::SIGNAL_TIME_PENDING) {
break;
}
compositeToPresentLatency = displayTime - cpt.composite;
getBE().mCompositePresentTimes.pop();
}
// Don't let mCompositePresentTimes grow unbounded, just in case.
while (getBE().mCompositePresentTimes.size() > 16) {
getBE().mCompositePresentTimes.pop();
}
setCompositorTimingSnapped(stats, compositeToPresentLatency);
}
void SurfaceFlinger::setCompositorTimingSnapped(const DisplayStatInfo& stats,
nsecs_t compositeToPresentLatency) {
// Integer division and modulo round toward 0 not -inf, so we need to
// treat negative and positive offsets differently.
nsecs_t idealLatency = (mPhaseConfiguration->getCurrentOffsets().late.sf > 0)
? (stats.vsyncPeriod -
(mPhaseConfiguration->getCurrentOffsets().late.sf % stats.vsyncPeriod))
: ((-mPhaseConfiguration->getCurrentOffsets().late.sf) % stats.vsyncPeriod);
// Just in case mPhaseConfiguration->getCurrentOffsets().late.sf == -vsyncInterval.
if (idealLatency <= 0) {
idealLatency = stats.vsyncPeriod;
}
// Snap the latency to a value that removes scheduling jitter from the
// composition and present times, which often have >1ms of jitter.
// Reducing jitter is important if an app attempts to extrapolate
// something (such as user input) to an accurate diasplay time.
// Snapping also allows an app to precisely calculate
// mPhaseConfiguration->getCurrentOffsets().late.sf with (presentLatency % interval).
nsecs_t bias = stats.vsyncPeriod / 2;
int64_t extraVsyncs = (compositeToPresentLatency - idealLatency + bias) / stats.vsyncPeriod;
nsecs_t snappedCompositeToPresentLatency =
(extraVsyncs > 0) ? idealLatency + (extraVsyncs * stats.vsyncPeriod) : idealLatency;
std::lock_guard<std::mutex> lock(getBE().mCompositorTimingLock);
getBE().mCompositorTiming.deadline = stats.vsyncTime - idealLatency;
getBE().mCompositorTiming.interval = stats.vsyncPeriod;
getBE().mCompositorTiming.presentLatency = snappedCompositeToPresentLatency;
}
void SurfaceFlinger::postComposition()
{
ATRACE_CALL();
ALOGV("postComposition");
nsecs_t dequeueReadyTime = systemTime();
for (auto& layer : mLayersWithQueuedFrames) {
layer->releasePendingBuffer(dequeueReadyTime);
}
const auto* display = ON_MAIN_THREAD(getDefaultDisplayDeviceLocked()).get();
getBE().mGlCompositionDoneTimeline.updateSignalTimes();
std::shared_ptr<FenceTime> glCompositionDoneFenceTime;
if (display && display->getCompositionDisplay()->getState().usesClientComposition) {
glCompositionDoneFenceTime =
std::make_shared<FenceTime>(display->getCompositionDisplay()
->getRenderSurface()
->getClientTargetAcquireFence());
getBE().mGlCompositionDoneTimeline.push(glCompositionDoneFenceTime);
} else {
glCompositionDoneFenceTime = FenceTime::NO_FENCE;
}
getBE().mDisplayTimeline.updateSignalTimes();
mPreviousPresentFences[1] = mPreviousPresentFences[0];
mPreviousPresentFences[0] =
display ? getHwComposer().getPresentFence(*display->getId()) : Fence::NO_FENCE;
auto presentFenceTime = std::make_shared<FenceTime>(mPreviousPresentFences[0]);
getBE().mDisplayTimeline.push(presentFenceTime);
DisplayStatInfo stats;
mScheduler->getDisplayStatInfo(&stats);
// We use the CompositionEngine::getLastFrameRefreshTimestamp() which might
// be sampled a little later than when we started doing work for this frame,
// but that should be okay since updateCompositorTiming has snapping logic.
updateCompositorTiming(stats, mCompositionEngine->getLastFrameRefreshTimestamp(),
presentFenceTime);
CompositorTiming compositorTiming;
{
std::lock_guard<std::mutex> lock(getBE().mCompositorTimingLock);
compositorTiming = getBE().mCompositorTiming;
}
mDrawingState.traverse([&](Layer* layer) {
const bool frameLatched = layer->onPostComposition(display, glCompositionDoneFenceTime,
presentFenceTime, compositorTiming);
if (frameLatched) {
recordBufferingStats(layer->getName(), layer->getOccupancyHistory(false));
}
});
mTransactionCompletedThread.addPresentFence(mPreviousPresentFences[0]);
mTransactionCompletedThread.sendCallbacks();
if (display && display->isPrimary() && display->getPowerMode() == hal::PowerMode::ON &&
presentFenceTime->isValid()) {
mScheduler->addPresentFence(presentFenceTime);
}
const bool isDisplayConnected = display && getHwComposer().isConnected(*display->getId());
if (!hasSyncFramework) {
if (isDisplayConnected && display->isPoweredOn()) {
mScheduler->enableHardwareVsync();
}
}
if (mAnimCompositionPending) {
mAnimCompositionPending = false;
if (presentFenceTime->isValid()) {
mAnimFrameTracker.setActualPresentFence(
std::move(presentFenceTime));
} else if (isDisplayConnected) {
// The HWC doesn't support present fences, so use the refresh
// timestamp instead.
const nsecs_t presentTime = getHwComposer().getRefreshTimestamp(*display->getId());
mAnimFrameTracker.setActualPresentTime(presentTime);
}
mAnimFrameTracker.advanceFrame();
}
mTimeStats->incrementTotalFrames();
if (mHadClientComposition) {
mTimeStats->incrementClientCompositionFrames();
}
if (mReusedClientComposition) {
mTimeStats->incrementClientCompositionReusedFrames();
}
mTimeStats->setPresentFenceGlobal(presentFenceTime);
const size_t sfConnections = mScheduler->getEventThreadConnectionCount(mSfConnectionHandle);
const size_t appConnections = mScheduler->getEventThreadConnectionCount(mAppConnectionHandle);
mTimeStats->recordDisplayEventConnectionCount(sfConnections + appConnections);
if (mLastJankDuration > 0) {
ATRACE_NAME("Jank detected");
const int32_t jankyDurationMillis = mLastJankDuration / (1000 * 1000);
android::util::stats_write(android::util::DISPLAY_JANK_REPORTED, jankyDurationMillis,
mMissedFrameJankCount);
mLastJankDuration = -1;
}
if (isDisplayConnected && !display->isPoweredOn()) {
return;
}
nsecs_t currentTime = systemTime();
if (mHasPoweredOff) {
mHasPoweredOff = false;
} else {
nsecs_t elapsedTime = currentTime - getBE().mLastSwapTime;
size_t numPeriods = static_cast<size_t>(elapsedTime / stats.vsyncPeriod);
if (numPeriods < SurfaceFlingerBE::NUM_BUCKETS - 1) {
getBE().mFrameBuckets[numPeriods] += elapsedTime;
} else {
getBE().mFrameBuckets[SurfaceFlingerBE::NUM_BUCKETS - 1] += elapsedTime;
}
getBE().mTotalTime += elapsedTime;
}
getBE().mLastSwapTime = currentTime;
// Cleanup any outstanding resources due to rendering a prior frame.
getRenderEngine().cleanupPostRender();
{
std::lock_guard lock(mTexturePoolMutex);
if (mTexturePool.size() < mTexturePoolSize) {
const size_t refillCount = mTexturePoolSize - mTexturePool.size();
const size_t offset = mTexturePool.size();
mTexturePool.resize(mTexturePoolSize);
getRenderEngine().genTextures(refillCount, mTexturePool.data() + offset);
ATRACE_INT("TexturePoolSize", mTexturePool.size());
} else if (mTexturePool.size() > mTexturePoolSize) {
const size_t deleteCount = mTexturePool.size() - mTexturePoolSize;
const size_t offset = mTexturePoolSize;
getRenderEngine().deleteTextures(deleteCount, mTexturePool.data() + offset);
mTexturePool.resize(mTexturePoolSize);
ATRACE_INT("TexturePoolSize", mTexturePool.size());
}
}
if (mLumaSampling && mRegionSamplingThread) {
mRegionSamplingThread->notifyNewContent();
}
// Even though ATRACE_INT64 already checks if tracing is enabled, it doesn't prevent the
// side-effect of getTotalSize(), so we check that again here
if (ATRACE_ENABLED()) {
// getTotalSize returns the total number of buffers that were allocated by SurfaceFlinger
ATRACE_INT64("Total Buffer Size", GraphicBufferAllocator::get().getTotalSize());
}
}
FloatRect SurfaceFlinger::getLayerClipBoundsForDisplay(const DisplayDevice& displayDevice) const {
return displayDevice.getViewport().toFloatRect();
}
void SurfaceFlinger::computeLayerBounds() {
for (const auto& pair : ON_MAIN_THREAD(mDisplays)) {
const auto& displayDevice = pair.second;
const auto display = displayDevice->getCompositionDisplay();
for (const auto& layer : mDrawingState.layersSortedByZ) {
// only consider the layers on the given layer stack
if (!display->belongsInOutput(layer->getLayerStack(), layer->getPrimaryDisplayOnly())) {
continue;
}
layer->computeBounds(getLayerClipBoundsForDisplay(*displayDevice), ui::Transform(),
0.f /* shadowRadius */);
}
}
}
void SurfaceFlinger::postFrame() {
const auto display = ON_MAIN_THREAD(getDefaultDisplayDeviceLocked());
if (display && getHwComposer().isConnected(*display->getId())) {
uint32_t flipCount = display->getPageFlipCount();
if (flipCount % LOG_FRAME_STATS_PERIOD == 0) {
logFrameStats();
}
}
}
void SurfaceFlinger::handleTransaction(uint32_t transactionFlags)
{
ATRACE_CALL();
// here we keep a copy of the drawing state (that is the state that's
// going to be overwritten by handleTransactionLocked()) outside of
// mStateLock so that the side-effects of the State assignment
// don't happen with mStateLock held (which can cause deadlocks).
State drawingState(mDrawingState);
Mutex::Autolock _l(mStateLock);
mDebugInTransaction = systemTime();
// Here we're guaranteed that some transaction flags are set
// so we can call handleTransactionLocked() unconditionally.
// We call getTransactionFlags(), which will also clear the flags,
// with mStateLock held to guarantee that mCurrentState won't change
// until the transaction is committed.
mVSyncModulator->onTransactionHandled();
transactionFlags = getTransactionFlags(eTransactionMask);
handleTransactionLocked(transactionFlags);
mDebugInTransaction = 0;
invalidateHwcGeometry();
// here the transaction has been committed
}
void SurfaceFlinger::processDisplayHotplugEventsLocked() {
for (const auto& event : mPendingHotplugEvents) {
const std::optional<DisplayIdentificationInfo> info =
getHwComposer().onHotplug(event.hwcDisplayId, event.connection);
if (!info) {
continue;
}
const DisplayId displayId = info->id;
const auto it = mPhysicalDisplayTokens.find(displayId);
if (event.connection == hal::Connection::CONNECTED) {
if (it == mPhysicalDisplayTokens.end()) {
ALOGV("Creating display %s", to_string(displayId).c_str());
if (event.hwcDisplayId == getHwComposer().getInternalHwcDisplayId()) {
initScheduler(displayId);
}
DisplayDeviceState state;
state.physical = {displayId, getHwComposer().getDisplayConnectionType(displayId),
event.hwcDisplayId};
state.isSecure = true; // All physical displays are currently considered secure.
state.displayName = info->name;
sp<IBinder> token = new BBinder();
mCurrentState.displays.add(token, state);
mPhysicalDisplayTokens.emplace(displayId, std::move(token));
mInterceptor->saveDisplayCreation(state);
} else {
ALOGV("Recreating display %s", to_string(displayId).c_str());
const auto token = it->second;
auto& state = mCurrentState.displays.editValueFor(token);
state.sequenceId = DisplayDeviceState{}.sequenceId;
}
} else {
ALOGV("Removing display %s", to_string(displayId).c_str());
const ssize_t index = mCurrentState.displays.indexOfKey(it->second);
if (index >= 0) {
const DisplayDeviceState& state = mCurrentState.displays.valueAt(index);
mInterceptor->saveDisplayDeletion(state.sequenceId);
mCurrentState.displays.removeItemsAt(index);
}
mPhysicalDisplayTokens.erase(it);
}
processDisplayChangesLocked();
}
mPendingHotplugEvents.clear();
}
void SurfaceFlinger::dispatchDisplayHotplugEvent(PhysicalDisplayId displayId, bool connected) {
mScheduler->onHotplugReceived(mAppConnectionHandle, displayId, connected);
mScheduler->onHotplugReceived(mSfConnectionHandle, displayId, connected);
}
sp<DisplayDevice> SurfaceFlinger::setupNewDisplayDeviceInternal(
const wp<IBinder>& displayToken,
std::shared_ptr<compositionengine::Display> compositionDisplay,
const DisplayDeviceState& state,
const sp<compositionengine::DisplaySurface>& displaySurface,
const sp<IGraphicBufferProducer>& producer) {
auto displayId = compositionDisplay->getDisplayId();
DisplayDeviceCreationArgs creationArgs(this, displayToken, compositionDisplay);
creationArgs.sequenceId = state.sequenceId;
creationArgs.isSecure = state.isSecure;
creationArgs.displaySurface = displaySurface;
creationArgs.hasWideColorGamut = false;
creationArgs.supportedPerFrameMetadata = 0;
if (const auto& physical = state.physical) {
creationArgs.connectionType = physical->type;
}
const bool isInternalDisplay = displayId && displayId == getInternalDisplayIdLocked();
creationArgs.isPrimary = isInternalDisplay;
if (useColorManagement && displayId) {
std::vector<ColorMode> modes = getHwComposer().getColorModes(*displayId);
for (ColorMode colorMode : modes) {
if (isWideColorMode(colorMode)) {
creationArgs.hasWideColorGamut = true;
}
std::vector<RenderIntent> renderIntents =
getHwComposer().getRenderIntents(*displayId, colorMode);
creationArgs.hwcColorModes.emplace(colorMode, renderIntents);
}
}
if (displayId) {
getHwComposer().getHdrCapabilities(*displayId, &creationArgs.hdrCapabilities);
creationArgs.supportedPerFrameMetadata =
getHwComposer().getSupportedPerFrameMetadata(*displayId);
}
auto nativeWindowSurface = getFactory().createNativeWindowSurface(producer);
auto nativeWindow = nativeWindowSurface->getNativeWindow();
creationArgs.nativeWindow = nativeWindow;
// Make sure that composition can never be stalled by a virtual display
// consumer that isn't processing buffers fast enough. We have to do this
// here, in case the display is composed entirely by HWC.
if (state.isVirtual()) {
nativeWindow->setSwapInterval(nativeWindow.get(), 0);
}
creationArgs.physicalOrientation =
isInternalDisplay ? internalDisplayOrientation : ui::ROTATION_0;
// virtual displays are always considered enabled
creationArgs.initialPowerMode = state.isVirtual() ? hal::PowerMode::ON : hal::PowerMode::OFF;
sp<DisplayDevice> display = getFactory().createDisplayDevice(creationArgs);
if (maxFrameBufferAcquiredBuffers >= 3) {
nativeWindowSurface->preallocateBuffers();
}
ColorMode defaultColorMode = ColorMode::NATIVE;
Dataspace defaultDataSpace = Dataspace::UNKNOWN;
if (display->hasWideColorGamut()) {
defaultColorMode = ColorMode::SRGB;
defaultDataSpace = Dataspace::V0_SRGB;
}
display->getCompositionDisplay()->setColorProfile(
compositionengine::Output::ColorProfile{defaultColorMode, defaultDataSpace,
RenderIntent::COLORIMETRIC,
Dataspace::UNKNOWN});
if (!state.isVirtual()) {
LOG_ALWAYS_FATAL_IF(!displayId);
auto activeConfigId = HwcConfigIndexType(getHwComposer().getActiveConfigIndex(*displayId));
display->setActiveConfig(activeConfigId);
}
display->setLayerStack(state.layerStack);
display->setProjection(state.orientation, state.viewport, state.frame);
display->setDisplayName(state.displayName);
return display;
}
void SurfaceFlinger::processDisplayAdded(const wp<IBinder>& displayToken,
const DisplayDeviceState& state) {
int width = 0;
int height = 0;
ui::PixelFormat pixelFormat = static_cast<ui::PixelFormat>(PIXEL_FORMAT_UNKNOWN);
if (state.physical) {
const auto& activeConfig =
getCompositionEngine().getHwComposer().getActiveConfig(state.physical->id);
width = activeConfig->getWidth();
height = activeConfig->getHeight();
pixelFormat = static_cast<ui::PixelFormat>(PIXEL_FORMAT_RGBA_8888);
} else if (state.surface != nullptr) {
int status = state.surface->query(NATIVE_WINDOW_WIDTH, &width);
ALOGE_IF(status != NO_ERROR, "Unable to query width (%d)", status);
status = state.surface->query(NATIVE_WINDOW_HEIGHT, &height);
ALOGE_IF(status != NO_ERROR, "Unable to query height (%d)", status);
int intPixelFormat;
status = state.surface->query(NATIVE_WINDOW_FORMAT, &intPixelFormat);
ALOGE_IF(status != NO_ERROR, "Unable to query format (%d)", status);
pixelFormat = static_cast<ui::PixelFormat>(intPixelFormat);
} else {
// Virtual displays without a surface are dormant:
// they have external state (layer stack, projection,
// etc.) but no internal state (i.e. a DisplayDevice).
return;
}
compositionengine::DisplayCreationArgsBuilder builder;
if (const auto& physical = state.physical) {
builder.setPhysical({physical->id, physical->type});
}
builder.setPixels(ui::Size(width, height));
builder.setPixelFormat(pixelFormat);
builder.setIsSecure(state.isSecure);
builder.setLayerStackId(state.layerStack);
builder.setPowerAdvisor(&mPowerAdvisor);
builder.setUseHwcVirtualDisplays(mUseHwcVirtualDisplays || getHwComposer().isUsingVrComposer());
builder.setName(state.displayName);
const auto compositionDisplay = getCompositionEngine().createDisplay(builder.build());
sp<compositionengine::DisplaySurface> displaySurface;
sp<IGraphicBufferProducer> producer;
sp<IGraphicBufferProducer> bqProducer;
sp<IGraphicBufferConsumer> bqConsumer;
getFactory().createBufferQueue(&bqProducer, &bqConsumer, /*consumerIsSurfaceFlinger =*/false);
std::optional<DisplayId> displayId = compositionDisplay->getId();
if (state.isVirtual()) {
sp<VirtualDisplaySurface> vds =
new VirtualDisplaySurface(getHwComposer(), displayId, state.surface, bqProducer,
bqConsumer, state.displayName);
displaySurface = vds;
producer = vds;
} else {
ALOGE_IF(state.surface != nullptr,
"adding a supported display, but rendering "
"surface is provided (%p), ignoring it",
state.surface.get());
LOG_ALWAYS_FATAL_IF(!displayId);
displaySurface = new FramebufferSurface(getHwComposer(), *displayId, bqConsumer,
maxGraphicsWidth, maxGraphicsHeight);
producer = bqProducer;
}
LOG_FATAL_IF(!displaySurface);
const auto display = setupNewDisplayDeviceInternal(displayToken, compositionDisplay, state,
displaySurface, producer);
mDisplays.emplace(displayToken, display);
if (!state.isVirtual()) {
LOG_FATAL_IF(!displayId);
dispatchDisplayHotplugEvent(displayId->value, true);
}
if (display->isPrimary()) {
mScheduler->onPrimaryDisplayAreaChanged(display->getWidth() * display->getHeight());
}
}
void SurfaceFlinger::processDisplayRemoved(const wp<IBinder>& displayToken) {
if (const auto display = getDisplayDeviceLocked(displayToken)) {
// Save display ID before disconnecting.
const auto displayId = display->getId();
display->disconnect();
if (!display->isVirtual()) {
LOG_FATAL_IF(!displayId);
dispatchDisplayHotplugEvent(displayId->value, false);
}
}
mDisplays.erase(displayToken);
}
void SurfaceFlinger::processDisplayChanged(const wp<IBinder>& displayToken,
const DisplayDeviceState& currentState,
const DisplayDeviceState& drawingState) {
const sp<IBinder> currentBinder = IInterface::asBinder(currentState.surface);
const sp<IBinder> drawingBinder = IInterface::asBinder(drawingState.surface);
if (currentBinder != drawingBinder || currentState.sequenceId != drawingState.sequenceId) {
// changing the surface is like destroying and recreating the DisplayDevice
if (const auto display = getDisplayDeviceLocked(displayToken)) {
display->disconnect();
}
mDisplays.erase(displayToken);
if (const auto& physical = currentState.physical) {
getHwComposer().allocatePhysicalDisplay(physical->hwcDisplayId, physical->id);
}
processDisplayAdded(displayToken, currentState);
if (currentState.physical) {
const auto display = getDisplayDeviceLocked(displayToken);
setPowerModeInternal(display, hal::PowerMode::ON);
}
return;
}
if (const auto display = getDisplayDeviceLocked(displayToken)) {
if (currentState.layerStack != drawingState.layerStack) {
display->setLayerStack(currentState.layerStack);
}
if ((currentState.orientation != drawingState.orientation) ||
(currentState.viewport != drawingState.viewport) ||
(currentState.frame != drawingState.frame)) {
display->setProjection(currentState.orientation, currentState.viewport,
currentState.frame);
}
if (currentState.width != drawingState.width ||
currentState.height != drawingState.height) {
display->setDisplaySize(currentState.width, currentState.height);
if (display->isPrimary()) {
mScheduler->onPrimaryDisplayAreaChanged(currentState.width * currentState.height);
}
if (mRefreshRateOverlay) {
mRefreshRateOverlay->setViewport(display->getSize());
}
}
}
}
void SurfaceFlinger::processDisplayChangesLocked() {
// here we take advantage of Vector's copy-on-write semantics to
// improve performance by skipping the transaction entirely when
// know that the lists are identical
const KeyedVector<wp<IBinder>, DisplayDeviceState>& curr(mCurrentState.displays);
const KeyedVector<wp<IBinder>, DisplayDeviceState>& draw(mDrawingState.displays);
if (!curr.isIdenticalTo(draw)) {
mVisibleRegionsDirty = true;
// find the displays that were removed
// (ie: in drawing state but not in current state)
// also handle displays that changed
// (ie: displays that are in both lists)
for (size_t i = 0; i < draw.size(); i++) {
const wp<IBinder>& displayToken = draw.keyAt(i);
const ssize_t j = curr.indexOfKey(displayToken);
if (j < 0) {
// in drawing state but not in current state
processDisplayRemoved(displayToken);
} else {
// this display is in both lists. see if something changed.
const DisplayDeviceState& currentState = curr[j];
const DisplayDeviceState& drawingState = draw[i];
processDisplayChanged(displayToken, currentState, drawingState);
}
}
// find displays that were added
// (ie: in current state but not in drawing state)
for (size_t i = 0; i < curr.size(); i++) {
const wp<IBinder>& displayToken = curr.keyAt(i);
if (draw.indexOfKey(displayToken) < 0) {
processDisplayAdded(displayToken, curr[i]);
}
}
}
mDrawingState.displays = mCurrentState.displays;
}
void SurfaceFlinger::handleTransactionLocked(uint32_t transactionFlags)
{
const nsecs_t expectedPresentTime = mExpectedPresentTime.load();
// Notify all layers of available frames
mCurrentState.traverse([expectedPresentTime](Layer* layer) {
layer->notifyAvailableFrames(expectedPresentTime);
});
/*
* Traversal of the children
* (perform the transaction for each of them if needed)
*/
if ((transactionFlags & eTraversalNeeded) || mForceTraversal) {
mForceTraversal = false;
mCurrentState.traverse([&](Layer* layer) {
uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded);
if (!trFlags) return;
const uint32_t flags = layer->doTransaction(0);
if (flags & Layer::eVisibleRegion)
mVisibleRegionsDirty = true;
if (flags & Layer::eInputInfoChanged) {
mInputInfoChanged = true;
}
});
}
/*
* Perform display own transactions if needed
*/
if (transactionFlags & eDisplayTransactionNeeded) {
processDisplayChangesLocked();
processDisplayHotplugEventsLocked();
}
if (transactionFlags & (eTransformHintUpdateNeeded | eDisplayTransactionNeeded)) {
// The transform hint might have changed for some layers
// (either because a display has changed, or because a layer
// as changed).
//
// Walk through all the layers in currentLayers,
// and update their transform hint.
//
// If a layer is visible only on a single display, then that
// display is used to calculate the hint, otherwise we use the
// default display.
//
// NOTE: we do this here, rather than when presenting the display so that
// the hint is set before we acquire a buffer from the surface texture.
//
// NOTE: layer transactions have taken place already, so we use their
// drawing state. However, SurfaceFlinger's own transaction has not
// happened yet, so we must use the current state layer list
// (soon to become the drawing state list).
//
sp<const DisplayDevice> hintDisplay;
uint32_t currentlayerStack = 0;
bool first = true;
mCurrentState.traverse([&](Layer* layer) REQUIRES(mStateLock) {
// NOTE: we rely on the fact that layers are sorted by
// layerStack first (so we don't have to traverse the list
// of displays for every layer).
uint32_t layerStack = layer->getLayerStack();
if (first || currentlayerStack != layerStack) {
currentlayerStack = layerStack;
// figure out if this layerstack is mirrored
// (more than one display) if so, pick the default display,
// if not, pick the only display it's on.
hintDisplay = nullptr;
for (const auto& [token, display] : mDisplays) {
if (display->getCompositionDisplay()
->belongsInOutput(layer->getLayerStack(),
layer->getPrimaryDisplayOnly())) {
if (hintDisplay) {
hintDisplay = nullptr;
break;
} else {
hintDisplay = display;
}
}
}
}
if (!hintDisplay) {
// NOTE: TEMPORARY FIX ONLY. Real fix should cause layers to
// redraw after transform hint changes. See bug 8508397.
// could be null when this layer is using a layerStack
// that is not visible on any display. Also can occur at
// screen off/on times.
hintDisplay = getDefaultDisplayDeviceLocked();
}
// could be null if there is no display available at all to get
// the transform hint from.
if (hintDisplay) {
layer->updateTransformHint(hintDisplay->getTransformHint());
}
first = false;
});
}
/*
* Perform our own transaction if needed
*/
if (mLayersAdded) {
mLayersAdded = false;
// Layers have been added.
mVisibleRegionsDirty = true;
}
// some layers might have been removed, so
// we need to update the regions they're exposing.
if (mLayersRemoved) {
mLayersRemoved = false;
mVisibleRegionsDirty = true;
mDrawingState.traverseInZOrder([&](Layer* layer) {
if (mLayersPendingRemoval.indexOf(layer) >= 0) {
// this layer is not visible anymore
Region visibleReg;
visibleReg.set(layer->getScreenBounds());
invalidateLayerStack(layer, visibleReg);
}
});
}
commitInputWindowCommands();
commitTransaction();
}
void SurfaceFlinger::updateInputFlinger() {
ATRACE_CALL();
if (!mInputFlinger) {
return;
}
if (mVisibleRegionsDirty || mInputInfoChanged) {
mInputInfoChanged = false;
updateInputWindowInfo();
} else if (mInputWindowCommands.syncInputWindows) {
// If the caller requested to sync input windows, but there are no
// changes to input windows, notify immediately.
setInputWindowsFinished();
}
mInputWindowCommands.clear();
}
void SurfaceFlinger::updateInputWindowInfo() {
std::vector<InputWindowInfo> inputHandles;
mDrawingState.traverseInReverseZOrder([&](Layer* layer) {
if (layer->needsInputInfo()) {
// When calculating the screen bounds we ignore the transparent region since it may
// result in an unwanted offset.
inputHandles.push_back(layer->fillInputInfo());
}
});