#include "MonitoredProducer.h"
#include "SurfaceFlinger.h"
+#include "DisplayHardware/ComposerHal.h"
#include "DisplayHardware/FramebufferSurface.h"
#include "DisplayHardware/HWComposer.h"
#include "DisplayHardware/VirtualDisplaySurface.h"
namespace android {
-
using namespace android::hardware::configstore;
using namespace android::hardware::configstore::V1_0;
+namespace {
+class ConditionalLock {
+public:
+ ConditionalLock(Mutex& mutex, bool lock) : mMutex(mutex), mLocked(lock) {
+ if (lock) {
+ mMutex.lock();
+ }
+ }
+ ~ConditionalLock() { if (mLocked) mMutex.unlock(); }
+private:
+ Mutex& mMutex;
+ bool mLocked;
+};
+} // namespace anonymous
+
// ---------------------------------------------------------------------------
const String16 sHardwareTest("android.permission.HARDWARE_TEST");
mLayersRemoved(false),
mLayersAdded(false),
mRepaintEverything(0),
- mHwc(nullptr),
- mRealHwc(nullptr),
- mVrHwc(nullptr),
mRenderEngine(nullptr),
mBootTime(systemTime()),
mBuiltinDisplays(),
mTotalTime(0),
mLastSwapTime(0),
mNumLayers(0),
- mVrFlingerRequestsDisplay(false)
+ mVrFlingerRequestsDisplay(false),
+ mMainThreadId(std::this_thread::get_id()),
+ mComposerSequenceId(0)
{
ALOGI("SurfaceFlinger is starting");
ALOGI("Phase offset NS: %" PRId64 "", vsyncPhaseOffsetNs);
- { // Autolock scope
- Mutex::Autolock _l(mStateLock);
+ Mutex::Autolock _l(mStateLock);
- // initialize EGL for the default display
- mEGLDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);
- eglInitialize(mEGLDisplay, NULL, NULL);
-
- // start the EventThread
- sp<VSyncSource> vsyncSrc = new DispSyncSource(&mPrimaryDispSync,
- vsyncPhaseOffsetNs, true, "app");
- mEventThread = new EventThread(vsyncSrc, *this, false);
- sp<VSyncSource> sfVsyncSrc = new DispSyncSource(&mPrimaryDispSync,
- sfVsyncPhaseOffsetNs, true, "sf");
- mSFEventThread = new EventThread(sfVsyncSrc, *this, true);
- mEventQueue.setEventThread(mSFEventThread);
+ // initialize EGL for the default display
+ mEGLDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+ eglInitialize(mEGLDisplay, NULL, NULL);
- // set EventThread and SFEventThread to SCHED_FIFO to minimize jitter
- struct sched_param param = {0};
- param.sched_priority = 2;
- if (sched_setscheduler(mSFEventThread->getTid(), SCHED_FIFO, ¶m) != 0) {
- ALOGE("Couldn't set SCHED_FIFO for SFEventThread");
- }
- if (sched_setscheduler(mEventThread->getTid(), SCHED_FIFO, ¶m) != 0) {
- ALOGE("Couldn't set SCHED_FIFO for EventThread");
- }
+ // start the EventThread
+ sp<VSyncSource> vsyncSrc = new DispSyncSource(&mPrimaryDispSync,
+ vsyncPhaseOffsetNs, true, "app");
+ mEventThread = new EventThread(vsyncSrc, *this, false);
+ sp<VSyncSource> sfVsyncSrc = new DispSyncSource(&mPrimaryDispSync,
+ sfVsyncPhaseOffsetNs, true, "sf");
+ mSFEventThread = new EventThread(sfVsyncSrc, *this, true);
+ mEventQueue.setEventThread(mSFEventThread);
- // Get a RenderEngine for the given display / config (can't fail)
- mRenderEngine = RenderEngine::create(mEGLDisplay,
- HAL_PIXEL_FORMAT_RGBA_8888,
- hasWideColorDisplay ? RenderEngine::WIDE_COLOR_SUPPORT : 0);
+ // set EventThread and SFEventThread to SCHED_FIFO to minimize jitter
+ struct sched_param param = {0};
+ param.sched_priority = 2;
+ if (sched_setscheduler(mSFEventThread->getTid(), SCHED_FIFO, ¶m) != 0) {
+ ALOGE("Couldn't set SCHED_FIFO for SFEventThread");
+ }
+ if (sched_setscheduler(mEventThread->getTid(), SCHED_FIFO, ¶m) != 0) {
+ ALOGE("Couldn't set SCHED_FIFO for EventThread");
}
- // Drop the state lock while we initialize the hardware composer. We drop
- // the lock because on creation, it will call back into SurfaceFlinger to
- // initialize the primary display.
- LOG_ALWAYS_FATAL_IF(mVrFlingerRequestsDisplay,
- "Starting with vr flinger active is not currently supported.");
- mRealHwc = new HWComposer(false);
- mHwc = mRealHwc;
- mHwc->setEventHandler(static_cast<HWComposer::EventHandler*>(this));
+ // Get a RenderEngine for the given display / config (can't fail)
+ mRenderEngine = RenderEngine::create(mEGLDisplay,
+ HAL_PIXEL_FORMAT_RGBA_8888,
+ hasWideColorDisplay ? RenderEngine::WIDE_COLOR_SUPPORT : 0);
- Mutex::Autolock _l(mStateLock);
+ // retrieve the EGL context that was selected/created
+ mEGLContext = mRenderEngine->getEGLContext();
+
+ LOG_ALWAYS_FATAL_IF(mEGLContext == EGL_NO_CONTEXT,
+ "couldn't create EGLContext");
+
+ LOG_ALWAYS_FATAL_IF(mVrFlingerRequestsDisplay,
+ "Starting with vr flinger active is not currently supported.");
+ mHwc.reset(new HWComposer(false));
+ mHwc->registerCallback(this, mComposerSequenceId);
if (useVrFlinger) {
auto vrFlingerRequestDisplayCallback = [this] (bool requestDisplay) {
}
}
- // retrieve the EGL context that was selected/created
- mEGLContext = mRenderEngine->getEGLContext();
-
- LOG_ALWAYS_FATAL_IF(mEGLContext == EGL_NO_CONTEXT,
- "couldn't create EGLContext");
-
- // make the GLContext current so that we can create textures when creating
- // Layers (which may happens before we render something)
- getDefaultDisplayDeviceLocked()->makeCurrent(mEGLDisplay, mEGLContext);
-
mEventControlThread = new EventControlThread(this);
mEventControlThread->run("EventControl", PRIORITY_URGENT_DISPLAY);
sLastResyncAttempted = now;
}
-void SurfaceFlinger::onVSyncReceived(HWComposer* composer, int32_t type,
- nsecs_t timestamp) {
+void SurfaceFlinger::onVsyncReceived(int32_t sequenceId,
+ hwc2_display_t displayId, int64_t timestamp) {
Mutex::Autolock lock(mStateLock);
- // Ignore any vsyncs from the non-active hardware composer.
- if (composer != mHwc) {
+ // Ignore any vsyncs from a previous hardware composer.
+ if (sequenceId != mComposerSequenceId) {
+ return;
+ }
+
+ int32_t type;
+ if (!mHwc->onVsync(displayId, timestamp, &type)) {
return;
}
{ // Scope for the lock
Mutex::Autolock _l(mHWVsyncLock);
- if (type == 0 && mPrimaryHWVsyncEnabled) {
+ if (type == DisplayDevice::DISPLAY_PRIMARY && mPrimaryHWVsyncEnabled) {
needsHwVsync = mPrimaryDispSync.addResyncSample(timestamp);
}
}
}
void SurfaceFlinger::createDefaultDisplayDevice() {
- const int32_t type = DisplayDevice::DISPLAY_PRIMARY;
+ const DisplayDevice::DisplayType type = DisplayDevice::DISPLAY_PRIMARY;
wp<IBinder> token = mBuiltinDisplays[type];
// All non-virtual displays are currently considered secure.
mDisplays.add(token, hw);
setActiveColorModeInternal(hw, HAL_COLOR_MODE_NATIVE);
hw->setCompositionDataSpace(HAL_DATASPACE_UNKNOWN);
-}
-void SurfaceFlinger::onHotplugReceived(HWComposer* composer, int32_t disp, bool connected) {
- ALOGV("onHotplugReceived(%d, %s)", disp, connected ? "true" : "false");
+ // Add the primary display token to mDrawingState so we don't try to
+ // recreate the DisplayDevice for the primary display.
+ mDrawingState.displays.add(token, DisplayDeviceState(type, true));
- if (composer->isUsingVrComposer()) {
- // We handle initializing the primary display device for the VR
- // window manager hwc explicitly at the time of transition.
- if (disp != DisplayDevice::DISPLAY_PRIMARY) {
- ALOGE("External displays are not supported by the vr hardware composer.");
- }
- return;
- }
+ // make the GLContext current so that we can create textures when creating
+ // Layers (which may happens before we render something)
+ hw->makeCurrent(mEGLDisplay, mEGLContext);
+}
- if (disp == DisplayDevice::DISPLAY_PRIMARY) {
- Mutex::Autolock lock(mStateLock);
- createBuiltinDisplayLocked(DisplayDevice::DISPLAY_PRIMARY);
+void SurfaceFlinger::onHotplugReceived(int32_t sequenceId,
+ hwc2_display_t display, HWC2::Connection connection,
+ bool primaryDisplay) {
+ ALOGV("onHotplugReceived(%d, %" PRIu64 ", %s, %s)",
+ sequenceId, display,
+ connection == HWC2::Connection::Connected ?
+ "connected" : "disconnected",
+ primaryDisplay ? "primary" : "external");
+
+ // 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);
+
+ if (primaryDisplay) {
+ mHwc->onHotplug(display, connection);
+ if (!mBuiltinDisplays[DisplayDevice::DISPLAY_PRIMARY].get()) {
+ createBuiltinDisplayLocked(DisplayDevice::DISPLAY_PRIMARY);
+ }
createDefaultDisplayDevice();
} else {
+ if (sequenceId != mComposerSequenceId) {
+ return;
+ }
+ if (mHwc->isUsingVrComposer()) {
+ ALOGE("External displays are not supported by the vr hardware composer.");
+ return;
+ }
+ mHwc->onHotplug(display, connection);
auto type = DisplayDevice::DISPLAY_EXTERNAL;
- Mutex::Autolock _l(mStateLock);
- if (connected) {
+ if (connection == HWC2::Connection::Connected) {
createBuiltinDisplayLocked(type);
} else {
mCurrentState.displays.removeItem(mBuiltinDisplays[type]);
}
}
-void SurfaceFlinger::onInvalidateReceived(HWComposer* composer) {
+void SurfaceFlinger::onRefreshReceived(int sequenceId,
+ hwc2_display_t /*display*/) {
Mutex::Autolock lock(mStateLock);
- if (composer == mHwc) {
- repaintEverything();
- } else {
- // This isn't from our current hardware composer. If it's a callback
- // from the real composer, forward the refresh request to vr
- // flinger. Otherwise ignore it.
- if (!composer->isUsingVrComposer()) {
- mVrFlinger->OnHardwareComposerRefresh();
- }
+ if (sequenceId != mComposerSequenceId) {
+ return;
}
+ repaintEverything();
}
void SurfaceFlinger::setVsyncEnabled(int disp, int enabled) {
ATRACE_CALL();
+ Mutex::Autolock lock(mStateLock);
getHwComposer().setVsyncEnabled(disp,
enabled ? HWC2::Vsync::Enable : HWC2::Vsync::Disable);
}
// Note: it is assumed the caller holds |mStateLock| when this is called
-void SurfaceFlinger::resetHwcLocked() {
+void SurfaceFlinger::resetDisplayState() {
disableHardwareVsync(true);
- clearHwcLayers(mDrawingState.layersSortedByZ);
- clearHwcLayers(mCurrentState.layersSortedByZ);
- for (size_t disp = 0; disp < mDisplays.size(); ++disp) {
- clearHwcLayers(mDisplays[disp]->getVisibleLayersSortedByZ());
- }
// 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();
- // Release virtual display hwcId during vr mode transition.
- for (size_t displayId = 0; displayId < mDisplays.size(); ++displayId) {
- const sp<DisplayDevice>& displayDevice = mDisplays[displayId];
- if (displayDevice->getDisplayType() == DisplayDevice::DISPLAY_VIRTUAL) {
- displayDevice->disconnect(getHwComposer());
- }
- }
+ eglMakeCurrent(mEGLDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
mDisplays.clear();
}
return;
}
- if (vrFlingerRequestsDisplay && !mVrHwc) {
- // Construct new HWComposer without holding any locks.
- mVrHwc = new HWComposer(true);
-
- // Set up the event handlers. This step is neccessary to initialize the internal state of
- // the hardware composer object properly. Our callbacks are designed such that if they are
- // triggered between now and the point where the display is properly re-initialized, they
- // will not have any effect, so this is safe to do here, before the lock is aquired.
- mVrHwc->setEventHandler(static_cast<HWComposer::EventHandler*>(this));
- ALOGV("Vr HWC created");
+ if (vrFlingerRequestsDisplay && !mHwc->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);
- if (vrFlingerRequestsDisplay) {
- resetHwcLocked();
-
- mHwc = mVrHwc;
- mVrFlinger->GrantDisplayOwnership();
+ int currentDisplayPowerMode = getDisplayDeviceLocked(
+ mBuiltinDisplays[DisplayDevice::DISPLAY_PRIMARY])->getPowerMode();
- } else {
+ if (!vrFlingerRequestsDisplay) {
mVrFlinger->SeizeDisplayOwnership();
+ }
- resetHwcLocked();
+ resetDisplayState();
+ mHwc.reset(); // Delete the current instance before creating the new one
+ mHwc.reset(new HWComposer(vrFlingerRequestsDisplay));
+ mHwc->registerCallback(this, ++mComposerSequenceId);
- mHwc = mRealHwc;
+ LOG_ALWAYS_FATAL_IF(!mHwc->getComposer()->isRemote(),
+ "Switched to non-remote hardware composer");
+
+ if (vrFlingerRequestsDisplay) {
+ mVrFlinger->GrantDisplayOwnership();
+ } else {
enableHardwareVsync();
}
mVisibleRegionsDirty = true;
invalidateHwcGeometry();
- // Explicitly re-initialize the primary display. This is because some other
- // parts of this class rely on the primary display always being available.
- createDefaultDisplayDevice();
-
// Re-enable default display.
- sp<LambdaMessage> requestMessage = new LambdaMessage([&]() {
- sp<DisplayDevice> hw(getDisplayDevice(mBuiltinDisplays[DisplayDevice::DISPLAY_PRIMARY]));
- setPowerModeInternal(hw, HWC_POWER_MODE_NORMAL);
+ sp<DisplayDevice> hw(getDisplayDeviceLocked(
+ mBuiltinDisplays[DisplayDevice::DISPLAY_PRIMARY]));
+ setPowerModeInternal(hw, currentDisplayPowerMode, /*stateLockHeld*/ true);
- // Reset the timing values to account for the period of the swapped in HWC
- const auto& activeConfig = mHwc->getActiveConfig(HWC_DISPLAY_PRIMARY);
- const nsecs_t period = activeConfig->getVsyncPeriod();
- mAnimFrameTracker.setDisplayRefreshPeriod(period);
+ // Reset the timing values to account for the period of the swapped in HWC
+ const auto& activeConfig = mHwc->getActiveConfig(HWC_DISPLAY_PRIMARY);
+ const nsecs_t period = activeConfig->getVsyncPeriod();
+ mAnimFrameTracker.setDisplayRefreshPeriod(period);
- // Use phase of 0 since phase is not known.
- // Use latency of 0, which will snap to the ideal latency.
- setCompositorTimingSnapped(0, period, 0);
- });
- postMessageAsync(requestMessage);
+ // Use phase of 0 since phase is not known.
+ // Use latency of 0, which will snap to the ideal latency.
+ setCompositorTimingSnapped(0, period, 0);
android_atomic_or(1, &mRepaintEverything);
setTransactionFlags(eDisplayTransactionNeeded);
Fence::SIGNAL_TIME_PENDING);
ATRACE_INT("FrameMissed", static_cast<int>(frameMissed));
if (mPropagateBackpressure && frameMissed) {
- ALOGD("Backpressure trigger, skipping transaction & refresh!");
signalLayerUpdate();
break;
}
// |mStateLock| not needed as we are on the main thread
const sp<const DisplayDevice> hw(getDefaultDisplayDeviceLocked());
+ mGlCompositionDoneTimeline.updateSignalTimes();
std::shared_ptr<FenceTime> glCompositionDoneFenceTime;
if (mHwc->hasClientComposition(HWC_DISPLAY_PRIMARY)) {
glCompositionDoneFenceTime =
} else {
glCompositionDoneFenceTime = FenceTime::NO_FENCE;
}
- mGlCompositionDoneTimeline.updateSignalTimes();
+ mDisplayTimeline.updateSignalTimes();
sp<Fence> presentFence = mHwc->getPresentFence(HWC_DISPLAY_PRIMARY);
auto presentFenceTime = std::make_shared<FenceTime>(presentFence);
mDisplayTimeline.push(presentFenceTime);
- mDisplayTimeline.updateSignalTimes();
nsecs_t vsyncPhase = mPrimaryDispSync.computeNextRefresh(0);
nsecs_t vsyncInterval = mPrimaryDispSync.getPeriod();
}
});
- if (presentFence->isValid()) {
- if (mPrimaryDispSync.addPresentFence(presentFence)) {
+ if (presentFenceTime->isValid()) {
+ if (mPrimaryDispSync.addPresentFence(presentFenceTime)) {
enableHardwareVsync();
} else {
disableHardwareVsync(false);
} else {
// Clear out the HWC layer if this layer was
// previously visible, but no longer is
- layer->setHwcLayer(displayDevice->getHwcDisplayId(),
- nullptr);
+ layer->destroyHwcLayer(
+ displayDevice->getHwcDisplayId());
}
} else {
// WM changes displayDevice->layerStack upon sleep/awake.
// Here we make sure we delete the HWC layers even if
// WM changed their layer stack.
- layer->setHwcLayer(displayDevice->getHwcDisplayId(),
- nullptr);
+ layer->destroyHwcLayer(displayDevice->getHwcDisplayId());
}
});
}
for (size_t i = 0; i < currentLayers.size(); i++) {
const auto& layer = currentLayers[i];
if (!layer->hasHwcLayer(hwcId)) {
- auto hwcLayer = mHwc->createLayer(hwcId);
- if (hwcLayer) {
- layer->setHwcLayer(hwcId, std::move(hwcLayer));
- } else {
+ if (!layer->createHwcLayer(mHwc.get(), hwcId)) {
layer->forceClientComposition(hwcId);
continue;
}
if (state.surface != NULL) {
// Allow VR composer to use virtual displays.
- if (mUseHwcVirtualDisplays || mHwc == mVrHwc) {
+ if (mUseHwcVirtualDisplays || mHwc->isUsingVrComposer()) {
int width = 0;
int status = state.surface->query(
NATIVE_WINDOW_WIDTH, &width);
d.height = 0;
displays.add(d);
setTransactionState(state, displays, 0);
- setPowerModeInternal(getDisplayDevice(d.token), HWC_POWER_MODE_NORMAL);
+ setPowerModeInternal(getDisplayDevice(d.token), HWC_POWER_MODE_NORMAL,
+ /*stateLockHeld*/ false);
const auto& activeConfig = mHwc->getActiveConfig(HWC_DISPLAY_PRIMARY);
const nsecs_t period = activeConfig->getVsyncPeriod();
}
void SurfaceFlinger::setPowerModeInternal(const sp<DisplayDevice>& hw,
- int mode) {
+ int mode, bool stateLockHeld) {
ALOGD("Set power mode=%d, type=%d flinger=%p", mode, hw->getDisplayType(),
this);
int32_t type = hw->getDisplayType();
}
if (mInterceptor.isEnabled()) {
- Mutex::Autolock _l(mStateLock);
+ ConditionalLock lock(mStateLock, !stateLockHeld);
ssize_t idx = mCurrentState.displays.indexOfKey(hw->getDisplayToken());
if (idx < 0) {
ALOGW("Surface Interceptor SavePowerMode: invalid display token");
ALOGW("Attempt to set power mode = %d for virtual display",
mMode);
} else {
- mFlinger.setPowerModeInternal(hw, mMode);
+ mFlinger.setPowerModeInternal(
+ hw, mMode, /*stateLockHeld*/ false);
}
return true;
}
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