void FenceTime::applyTrustedSnapshot(const Snapshot& src) {
if (CC_UNLIKELY(src.state != Snapshot::State::SIGNAL_TIME)) {
// Applying Snapshot::State::FENCE, could change the valid state of the
// FenceTime, which is not allowed. Callers should create a new
// FenceTime from the snapshot instead.
ALOGE("applyTrustedSnapshot: Unexpected fence.");
return;
}
if (src.state == Snapshot::State::EMPTY) {
return;
}
nsecs_t signalTime = mSignalTime.load(std::memory_order_relaxed);
if (signalTime != Fence::SIGNAL_TIME_PENDING) {
// We should always get the same signalTime here that we did in
// getSignalTime(). This check races with getSignalTime(), but it is
// only a sanity check so that's okay.
if (CC_UNLIKELY(signalTime != src.signalTime)) {
ALOGE("FenceTime::applyTrustedSnapshot: signalTime mismatch. "
"(%" PRId64 " (old) != %" PRId64 " (new))",
signalTime, src.signalTime);
}
return;
}
std::lock_guard<std::mutex> lock(mMutex);
mFence.clear();
mSignalTime.store(src.signalTime, std::memory_order_relaxed);
}
ssize_t AudioBufferProviderSource::read(void *buffer,
size_t count,
int64_t readPTS)
{
if (CC_UNLIKELY(!mNegotiated)) {
return NEGOTIATE;
}
if (CC_UNLIKELY(mBuffer.raw == NULL)) {
mBuffer.frameCount = count;
status_t status = mProvider->getNextBuffer(&mBuffer, readPTS);
if (status != OK) {
return status == NOT_ENOUGH_DATA ? (ssize_t) WOULD_BLOCK : (ssize_t) status;
}
ALOG_ASSERT(mBuffer.raw != NULL);
// mConsumed is 0 either from constructor or after releaseBuffer()
}
size_t available = mBuffer.frameCount - mConsumed;
if (CC_UNLIKELY(count > available)) {
count = available;
}
// count could be zero, either because count was zero on entry or
// available is zero, but both are unlikely so don't check for that
memcpy(buffer, (char *) mBuffer.raw + (mConsumed << mBitShift), count << mBitShift);
if (CC_UNLIKELY((mConsumed += count) >= mBuffer.frameCount)) {
mProvider->releaseBuffer(&mBuffer);
mBuffer.raw = NULL;
mConsumed = 0;
}
mFramesRead += count;
// For better responsiveness with large values of count,
// return a short count rather than continuing with next buffer.
// This gives the caller a chance to interpolate other actions.
return count;
}
void ShadowTessellator::tessellateSpotShadow(bool isCasterOpaque,
const Vector3* casterPolygon, int casterVertexCount, const Vector3& casterCentroid,
const mat4& receiverTransform, const Vector3& lightCenter, int lightRadius,
const Rect& casterBounds, const Rect& localClip, VertexBuffer& shadowVertexBuffer) {
ATRACE_CALL();
Caches& caches = Caches::getInstance();
Vector3 adjustedLightCenter(lightCenter);
if (CC_UNLIKELY(caches.propertyLightPosY > 0)) {
adjustedLightCenter.y = - caches.propertyLightPosY; // negated since this shifts up
}
if (CC_UNLIKELY(caches.propertyLightPosZ > 0)) {
adjustedLightCenter.z = caches.propertyLightPosZ;
}
#if DEBUG_SHADOW
ALOGD("light center %f %f %f",
adjustedLightCenter.x, adjustedLightCenter.y, adjustedLightCenter.z);
#endif
// light position (because it's in local space) needs to compensate for receiver transform
// TODO: should apply to light orientation, not just position
Matrix4 reverseReceiverTransform;
reverseReceiverTransform.loadInverse(receiverTransform);
reverseReceiverTransform.mapPoint3d(adjustedLightCenter);
const int lightVertexCount = 8;
if (CC_UNLIKELY(caches.propertyLightDiameter > 0)) {
lightRadius = caches.propertyLightDiameter;
}
// Now light and caster are both in local space, we will check whether
// the shadow is within the clip area.
Rect lightRect = Rect(adjustedLightCenter.x - lightRadius, adjustedLightCenter.y - lightRadius,
adjustedLightCenter.x + lightRadius, adjustedLightCenter.y + lightRadius);
lightRect.unionWith(localClip);
if (!lightRect.intersects(casterBounds)) {
#if DEBUG_SHADOW
ALOGD("Spot shadow is out of clip rect!");
#endif
return;
}
SpotShadow::createSpotShadow(isCasterOpaque, adjustedLightCenter, lightRadius,
casterPolygon, casterVertexCount, casterCentroid, shadowVertexBuffer);
#if DEBUG_SHADOW
if(shadowVertexBuffer.getVertexCount() <= 0) {
ALOGD("Spot shadow generation failed %d", shadowVertexBuffer.getVertexCount());
}
#endif
}
void Snapshot::applyClip(const ClipBase* recordedClip, const Matrix4& transform) {
if (CC_UNLIKELY(recordedClip && recordedClip->intersectWithRoot)) {
// current clip is being replaced, but must intersect with clip root
*mClipArea = *(getClipRoot(this)->mClipArea);
}
mClipArea->applyClip(recordedClip, transform);
}
void ShadowTessellator::tessellateAmbientShadow(bool isCasterOpaque,
const Vector3* casterPolygon, int casterVertexCount,
const Vector3& centroid3d, const Rect& casterBounds,
const Rect& localClip, float maxZ, VertexBuffer& shadowVertexBuffer) {
ATRACE_CALL();
// A bunch of parameters to tweak the shadow.
// TODO: Allow some of these changable by debug settings or APIs.
float heightFactor = 1.0f / 128;
const float geomFactor = 64;
Caches& caches = Caches::getInstance();
if (CC_UNLIKELY(caches.propertyAmbientRatio > 0.0f)) {
heightFactor *= caches.propertyAmbientRatio;
}
Rect ambientShadowBounds(casterBounds);
ambientShadowBounds.outset(maxZ * geomFactor * heightFactor);
if (!localClip.intersects(ambientShadowBounds)) {
#if DEBUG_SHADOW
ALOGD("Ambient shadow is out of clip rect!");
#endif
return;
}
AmbientShadow::createAmbientShadow(isCasterOpaque, casterPolygon,
casterVertexCount, centroid3d, heightFactor, geomFactor,
shadowVertexBuffer);
}
void FrameInfoVisualizer::setDensity(float density) {
if (CC_UNLIKELY(mDensity != density)) {
mDensity = density;
mVerticalUnit = dpToPx(PROFILE_DRAW_DP_PER_MS, density);
mThresholdStroke = dpToPx(PROFILE_DRAW_THRESHOLD_STROKE_WIDTH, density);
}
}
/**
* CameraBuffer
*
* Constructor for buffers allocated using mmap
*
* \param fd [IN] File descriptor to map
* \param length [IN] amount of data to map
* \param v4l2fmt [IN] Pixel format in V4L2 enum
* \param offset [IN] offset from the begining of the file (mmap param)
* \param prot [IN] memory protection (mmap param)
* \param flags [IN] flags (mmap param)
*
* Success of the mmap can be queried by checking the size of the resulting
* buffer
*/
CameraBuffer::CameraBuffer(int fd, int length, int v4l2fmt, int offset,
int prot, int flags):
mWidth(1),
mHeight(length),
mSize(0),
mFormat(0),
mV4L2Fmt(v4l2fmt),
mStride(1),
mInit(false),
mLocked(false),
mType(BUF_TYPE_MMAP),
mOwner(NULL),
mDataPtr(NULL),
mRequestID(0)
{
mDataPtr = mmap(NULL, length, prot, flags, fd, offset);
if (CC_UNLIKELY(mDataPtr == MAP_FAILED)) {
LOGE("Failed to MMAP the buffer %s", strerror(errno));
mDataPtr = NULL;
return;
}
mLocked = true;
mInit = true;
mSize = length;
CLEAR(mUserBuffer);
mUserBuffer.release_fence = -1;
mUserBuffer.acquire_fence = -1;
LOG1("mmaped address for %p length %d", mDataPtr, mSize);
}
status_t ResultProcessor::handleRegisterRequest(Message &msg)
{
status_t status = NO_ERROR;
RequestState_t* reqState;
int reqId = msg.request->getId();
/**
* check if the request was not already register. we may receive registration
* request duplicated in case of request that are held by the PSL
*/
if(mRequestsInTransit.indexOfKey(reqId) != NAME_NOT_FOUND) {
return NO_ERROR;
}
status = mReqStatePool.acquireItem(&reqState);
if (status != NO_ERROR) {
LOGE("Could not acquire an empty reqState from the pool");
return status;
}
reqState->init(msg.request);
mRequestsInTransit.add(reqState->reqId, reqState);
LOGR("<request %d> registered @ ResultProcessor", reqState->reqId);
/**
* get the number of partial results the request may return, this is not
* going to change once the camera is open, so do it only once.
* We initialize the value to 0, the minimum value should be 1
*/
if (CC_UNLIKELY(mPartialResultCount == 0)) {
mPartialResultCount = msg.request->getpartialResultCount();
}
return status;
}
void BakedOpRenderer::endFrame(const Rect& repaintRect) {
if (CC_UNLIKELY(Properties::debugOverdraw)) {
ClipRect overdrawClip(repaintRect);
Rect viewportRect(mRenderTarget.viewportWidth, mRenderTarget.viewportHeight);
// overdraw visualization
for (int i = 1; i <= 4; i++) {
if (i < 4) {
// nth level of overdraw tests for n+1 draws per pixel
mRenderState.stencil().enableDebugTest(i + 1, false);
} else {
// 4th level tests for 4 or higher draws per pixel
mRenderState.stencil().enableDebugTest(4, true);
}
SkPaint paint;
paint.setColor(mCaches.getOverdrawColor(i));
Glop glop;
GlopBuilder(mRenderState, mCaches, &glop)
.setRoundRectClipState(nullptr)
.setMeshUnitQuad()
.setFillPaint(paint, 1.0f)
.setTransform(Matrix4::identity(), TransformFlags::None)
.setModelViewMapUnitToRect(viewportRect)
.build();
renderGlop(nullptr, &overdrawClip, glop);
}
mRenderState.stencil().disable();
}
// Note: we leave FBO 0 renderable here, for post-frame-content decoration
}
virtual void onPositionLost(RenderNode& node, const TreeInfo* info) override {
if (CC_UNLIKELY(!mWeakRef || (info && !info->updateWindowPositions))) return;
ATRACE_NAME("SurfaceView position lost");
JNIEnv* env = jnienv();
jobject localref = env->NewLocalRef(mWeakRef);
if (CC_UNLIKELY(!localref)) {
jnienv()->DeleteWeakGlobalRef(mWeakRef);
mWeakRef = nullptr;
return;
}
env->CallVoidMethod(localref, gSurfaceViewPositionLostMethod,
info ? info->canvasContext.getFrameNumber() : 0);
env->DeleteLocalRef(localref);
}
virtual void onPositionUpdated(RenderNode& node, const TreeInfo& info) override {
if (CC_UNLIKELY(!mWeakRef || !info.updateWindowPositions)) return;
Matrix4 transform;
info.damageAccumulator->computeCurrentTransform(&transform);
const RenderProperties& props = node.properties();
uirenderer::Rect bounds(props.getWidth(), props.getHeight());
transform.mapRect(bounds);
bounds.left -= info.windowInsetLeft;
bounds.right -= info.windowInsetLeft;
bounds.top -= info.windowInsetTop;
bounds.bottom -= info.windowInsetTop;
if (CC_LIKELY(transform.isPureTranslate())) {
// snap/round the computed bounds, so they match the rounding behavior
// of the clear done in SurfaceView#draw().
bounds.snapToPixelBoundaries();
} else {
// Conservatively round out so the punched hole (in the ZOrderOnTop = true case)
// doesn't extend beyond the other window
bounds.roundOut();
}
incStrong(0);
auto functor = std::bind(
std::mem_fn(&SurfaceViewPositionUpdater::doUpdatePositionAsync), this,
(jlong) info.canvasContext.getFrameNumber(),
(jint) bounds.left, (jint) bounds.top,
(jint) bounds.right, (jint) bounds.bottom);
info.canvasContext.enqueueFrameWork(std::move(functor));
}
ssize_t AudioBufferProviderSource::availableToRead()
{
if (CC_UNLIKELY(!mNegotiated)) {
return NEGOTIATE;
}
return mBuffer.raw != NULL ? mBuffer.frameCount - mConsumed : 0;
}
bool egl_display_t::HibernationMachine::incWakeCount(WakeRefStrength strength) {
Mutex::Autolock _l(mLock);
ALOGE_IF(mWakeCount < 0 || mWakeCount == INT32_MAX,
"Invalid WakeCount (%d) on enter\n", mWakeCount);
mWakeCount++;
if (strength == STRONG)
mAttemptHibernation = false;
if (CC_UNLIKELY(mHibernating)) {
ALOGV("Awakening\n");
egl_connection_t* const cnx = &gEGLImpl;
// These conditions should be guaranteed before entering hibernation;
// we don't want to get into a state where we can't wake up.
ALOGD_IF(!mDpyValid || !cnx->egl.eglAwakenProcessIMG,
"Invalid hibernation state, unable to awaken\n");
if (!cnx->egl.eglAwakenProcessIMG()) {
ALOGE("Failed to awaken EGL implementation\n");
return false;
}
mHibernating = false;
}
return true;
}
bool EglManager::swapBuffers(const Frame& frame, const SkRect& screenDirty) {
if (CC_UNLIKELY(Properties::waitForGpuCompletion)) {
ATRACE_NAME("Finishing GPU work");
fence();
}
EGLint rects[4];
frame.map(screenDirty, rects);
eglSwapBuffersWithDamageKHR(mEglDisplay, frame.mSurface, rects, screenDirty.isEmpty() ? 0 : 1);
EGLint err = eglGetError();
if (CC_LIKELY(err == EGL_SUCCESS)) {
return true;
}
if (err == EGL_BAD_SURFACE || err == EGL_BAD_NATIVE_WINDOW) {
// For some reason our surface was destroyed out from under us
// This really shouldn't happen, but if it does we can recover easily
// by just not trying to use the surface anymore
ALOGW("swapBuffers encountered EGL error %d on %p, halting rendering...", err,
frame.mSurface);
return false;
}
LOG_ALWAYS_FATAL("Encountered EGL error %d %s during rendering", err, egl_error_str(err));
// Impossible to hit this, but the compiler doesn't know that
return false;
}
BpBinder* BpBinder::create(int32_t handle) {
int32_t trackedUid = -1;
if (sCountByUidEnabled) {
trackedUid = IPCThreadState::self()->getCallingUid();
AutoMutex _l(sTrackingLock);
uint32_t trackedValue = sTrackingMap[trackedUid];
if (CC_UNLIKELY(trackedValue & LIMIT_REACHED_MASK)) {
if (sBinderProxyThrottleCreate) {
return nullptr;
}
} else {
if ((trackedValue & COUNTING_VALUE_MASK) >= sBinderProxyCountHighWatermark) {
ALOGE("Too many binder proxy objects sent to uid %d from uid %d (%d proxies held)",
getuid(), trackedUid, trackedValue);
sTrackingMap[trackedUid] |= LIMIT_REACHED_MASK;
if (sLimitCallback) sLimitCallback(trackedUid);
if (sBinderProxyThrottleCreate) {
ALOGI("Throttling binder proxy creates from uid %d in uid %d until binder proxy"
" count drops below %d",
trackedUid, getuid(), sBinderProxyCountLowWatermark);
return nullptr;
}
}
}
sTrackingMap[trackedUid]++;
}
return new BpBinder(handle, trackedUid);
}
sp<GraphicBuffer> GLConsumer::getDebugTexImageBuffer() {
Mutex::Autolock _l(sStaticInitLock);
if (CC_UNLIKELY(sReleasedTexImageBuffer == NULL)) {
// The first time, create the debug texture in case the application
// continues to use it.
sp<GraphicBuffer> buffer = new GraphicBuffer(
kDebugData.width, kDebugData.height, PIXEL_FORMAT_RGBA_8888,
GraphicBuffer::USAGE_SW_WRITE_RARELY);
uint32_t* bits;
buffer->lock(GraphicBuffer::USAGE_SW_WRITE_RARELY, reinterpret_cast<void**>(&bits));
uint32_t stride = buffer->getStride();
uint32_t height = buffer->getHeight();
memset(bits, 0, stride * height * 4);
for (uint32_t y = 0; y < kDebugData.height; y++) {
for (uint32_t x = 0; x < kDebugData.width; x++) {
bits[x] = (kDebugData.bits[y + kDebugData.width + x] == 'X') ?
0xFF000000 : 0xFFFFFFFF;
}
bits += stride;
}
buffer->unlock();
sReleasedTexImageBuffer = buffer;
}
return sReleasedTexImageBuffer;
}
bool Snapshot::clipTransformed(const Rect& r, SkRegion::Op op) {
bool clipped = false;
switch (op) {
case SkRegion::kIntersect_Op: {
if (CC_UNLIKELY(!clipRegion->isEmpty())) {
ensureClipRegion();
clipped = clipRegionOp(r.left, r.top, r.right, r.bottom, SkRegion::kIntersect_Op);
} else {
clipped = clipRect->intersect(r);
if (!clipped) {
clipRect->setEmpty();
clipped = true;
}
}
break;
}
case SkRegion::kReplace_Op: {
setClip(r.left, r.top, r.right, r.bottom);
clipped = true;
break;
}
default: {
ensureClipRegion();
clipped = clipRegionOp(r.left, r.top, r.right, r.bottom, op);
break;
}
}
if (clipped) {
flags |= Snapshot::kFlagClipSet;
}
return clipped;
}
void LayerBuilder::flushLayerClears(LinearAllocator& allocator) {
if (CC_UNLIKELY(!mClearRects.empty())) {
const int vertCount = mClearRects.size() * 4;
// put the verts in the frame allocator, since
// 1) SimpleRectsOps needs verts, not rects
// 2) even if mClearRects stored verts, std::vectors will move their contents
Vertex* const verts = (Vertex*) allocator.create_trivial_array<Vertex>(vertCount);
Vertex* currentVert = verts;
Rect bounds = mClearRects[0];
for (auto&& rect : mClearRects) {
bounds.unionWith(rect);
Vertex::set(currentVert++, rect.left, rect.top);
Vertex::set(currentVert++, rect.right, rect.top);
Vertex::set(currentVert++, rect.left, rect.bottom);
Vertex::set(currentVert++, rect.right, rect.bottom);
}
mClearRects.clear(); // discard rects before drawing so this method isn't reentrant
// One or more unclipped saveLayers have been enqueued, with deferred clears.
// Flush all of these clears with a single draw
SkPaint* paint = allocator.create<SkPaint>();
paint->setXfermodeMode(SkXfermode::kClear_Mode);
SimpleRectsOp* op = allocator.create_trivial<SimpleRectsOp>(bounds,
Matrix4::identity(), nullptr, paint,
verts, vertCount);
BakedOpState* bakedState = BakedOpState::directConstruct(allocator,
&repaintClip, bounds, *op);
deferUnmergeableOp(allocator, bakedState, OpBatchType::Vertices);
}
}
status_t CameraMetadata::checkType(uint32_t tag, uint8_t expectedType) {
int tagType = get_camera_metadata_tag_type(tag);
if ( CC_UNLIKELY(tagType == -1)) {
ALOGE("Update metadata entry: Unknown tag %d", tag);
return INVALID_OPERATION;
}
if ( CC_UNLIKELY(tagType != expectedType) ) {
ALOGE("Mismatched tag type when updating entry %s (%d) of type %s; "
"got type %s data instead ",
get_camera_metadata_tag_name(tag), tag,
camera_metadata_type_names[tagType],
camera_metadata_type_names[expectedType]);
return INVALID_OPERATION;
}
return OK;
}
BpBinder::~BpBinder()
{
ALOGV("Destroying BpBinder %p handle %d\n", this, mHandle);
IPCThreadState* ipc = IPCThreadState::self();
if (mTrackedUid >= 0) {
AutoMutex _l(sTrackingLock);
uint32_t trackedValue = sTrackingMap[mTrackedUid];
if (CC_UNLIKELY((trackedValue & COUNTING_VALUE_MASK) == 0)) {
ALOGE("Unexpected Binder Proxy tracking decrement in %p handle %d\n", this, mHandle);
} else {
if (CC_UNLIKELY(
(trackedValue & LIMIT_REACHED_MASK) &&
((trackedValue & COUNTING_VALUE_MASK) <= sBinderProxyCountLowWatermark)
)) {
ALOGI("Limit reached bit reset for uid %d (fewer than %d proxies from uid %d held)",
getuid(), mTrackedUid, sBinderProxyCountLowWatermark);
sTrackingMap[mTrackedUid] &= ~LIMIT_REACHED_MASK;
}
if (--sTrackingMap[mTrackedUid] == 0) {
sTrackingMap.erase(mTrackedUid);
}
}
}
mLock.lock();
Vector<Obituary>* obits = mObituaries;
if(obits != NULL) {
if (ipc) ipc->clearDeathNotification(mHandle, this);
mObituaries = NULL;
}
mLock.unlock();
if (obits != NULL) {
// XXX Should we tell any remaining DeathRecipient
// objects that the last strong ref has gone away, so they
// are no longer linked?
delete obits;
}
if (ipc) {
ipc->expungeHandle(mHandle, this);
ipc->decWeakHandle(mHandle);
}
}
void DrawProfiler::setDensity(float density) {
if (CC_UNLIKELY(mDensity != density)) {
mDensity = density;
mVerticalUnit = dpToPx(PROFILE_DRAW_DP_PER_MS, density);
mHorizontalUnit = dpToPx(PROFILE_DRAW_WIDTH, density);
mThresholdStroke = dpToPx(PROFILE_DRAW_THRESHOLD_STROKE_WIDTH, density);
}
}
void Layer::onDraw(const Region& clip) const
{
if (CC_UNLIKELY(mActiveBuffer == 0)) {
// the texture has not been created yet, this Layer has
// in fact never been drawn into. This happens frequently with
// SurfaceView because the WindowManager can't know when the client
// has drawn the first time.
// If there is nothing under us, we paint the screen in black, otherwise
// we just skip this update.
// figure out if there is something below us
Region under;
const SurfaceFlinger::LayerVector& drawingLayers(
mFlinger->mDrawingState.layersSortedByZ);
const size_t count = drawingLayers.size();
for (size_t i=0 ; i<count ; ++i) {
const sp<LayerBase>& layer(drawingLayers[i]);
if (layer.get() == static_cast<LayerBase const*>(this))
break;
under.orSelf(layer->visibleRegionScreen);
}
// if not everything below us is covered, we plug the holes!
Region holes(clip.subtract(under));
if (!holes.isEmpty()) {
clearWithOpenGL(holes, 0, 0, 0, 1);
}
return;
}
if (!isProtected()) {
glBindTexture(GL_TEXTURE_EXTERNAL_OES, mTextureName);
GLenum filter = GL_NEAREST;
if (getFiltering() || needsFiltering() || isFixedSize() || isCropped()) {
// TODO: we could be more subtle with isFixedSize()
filter = GL_LINEAR;
}
glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MAG_FILTER, filter);
glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MIN_FILTER, filter);
glMatrixMode(GL_TEXTURE);
glLoadMatrixf(mTextureMatrix);
glMatrixMode(GL_MODELVIEW);
glDisable(GL_TEXTURE_2D);
glEnable(GL_TEXTURE_EXTERNAL_OES);
} else {
glBindTexture(GL_TEXTURE_2D, mFlinger->getProtectedTexName());
glMatrixMode(GL_TEXTURE);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
glDisable(GL_TEXTURE_EXTERNAL_OES);
glEnable(GL_TEXTURE_2D);
}
drawWithOpenGL(clip);
glDisable(GL_TEXTURE_EXTERNAL_OES);
glDisable(GL_TEXTURE_2D);
}
ssize_t MonoPipeReader::availableToRead()
{
if (CC_UNLIKELY(!mNegotiated)) {
return NEGOTIATE;
}
ssize_t ret = android_atomic_acquire_load(&mPipe->mRear) - mPipe->mFront;
ALOG_ASSERT((0 <= ret) && (ret <= mPipe->mMaxFrames));
return ret;
}
void GpuMemoryTracker::onGLContextDestroyed() {
gGpuThread = 0;
if (CC_UNLIKELY(gObjectSet.size() > 0)) {
std::stringstream os;
dump(os);
ALOGE("%s", os.str().c_str());
LOG_ALWAYS_FATAL("Leaked %zd GPU objects!", gObjectSet.size());
}
}
void PicturePileLayerContent::draw(SkCanvas* canvas)
{
TRACE_METHOD();
android::Mutex::Autolock lock(m_drawLock);
m_picturePile.draw(canvas);
if (CC_UNLIKELY(!m_hasContent))
ALOGW("Warning: painting PicturePile without content!");
}
FenceTime::FenceTime(nsecs_t signalTime)
: mState(Fence::isValidTimestamp(signalTime) ? State::VALID : State::INVALID),
mFence(nullptr),
mSignalTime(signalTime) {
if (CC_UNLIKELY(mSignalTime == Fence::SIGNAL_TIME_PENDING)) {
ALOGE("Pending signal time not allowed after signal.");
mSignalTime = Fence::SIGNAL_TIME_INVALID;
}
}
camera_metadata_ro_entry_t CameraMetadata::find(uint32_t tag) const {
status_t res;
camera_metadata_ro_entry entry;
res = find_camera_metadata_ro_entry(mBuffer, tag, &entry);
if (CC_UNLIKELY( res != OK )) {
entry.count = 0;
entry.data.u8 = NULL;
}
return entry;
}
ssize_t MonoPipe::availableToWrite() const
{
if (CC_UNLIKELY(!mNegotiated)) {
return NEGOTIATE;
}
// uses mMaxFrames not mReqFrames, so allows "over-filling" the pipe beyond requested limit
ssize_t ret = mMaxFrames - (mRear - android_atomic_acquire_load(&mFront));
ALOG_ASSERT((0 <= ret) && (ret <= mMaxFrames));
return ret;
}
ssize_t MonoPipeReader::read(void *buffer, size_t count, int64_t readPTS)
{
// Compute the "next read PTS" and cache it. Callers of read pass a read
// PTS indicating the local time for which they are requesting data along
// with a count (which is the number of audio frames they are going to
// ultimately pass to the next stage of the pipeline). Offsetting readPTS
// by the duration of count will give us the readPTS which will be passed to
// us next time, assuming they system continues to operate in steady state
// with no discontinuities. We stash this value so it can be used by the
// MonoPipe writer to imlement getNextWriteTimestamp.
int64_t nextReadPTS;
nextReadPTS = mPipe->offsetTimestampByAudioFrames(readPTS, count);
// count == 0 is unlikely and not worth checking for explicitly; will be handled automatically
ssize_t red = availableToRead();
if (CC_UNLIKELY(red <= 0)) {
// Uh-oh, looks like we are underflowing. Update the next read PTS and
// get out.
mPipe->updateFrontAndNRPTS(mPipe->mFront, nextReadPTS);
return red;
}
if (CC_LIKELY((size_t) red > count)) {
red = count;
}
size_t front = mPipe->mFront & (mPipe->mMaxFrames - 1);
size_t part1 = mPipe->mMaxFrames - front;
if (part1 > (size_t) red) {
part1 = red;
}
if (CC_LIKELY(part1 > 0)) {
memcpy(buffer, (char *) mPipe->mBuffer + (front << mBitShift), part1 << mBitShift);
if (CC_UNLIKELY(front + part1 == mPipe->mMaxFrames)) {
size_t part2 = red - part1;
if (CC_LIKELY(part2 > 0)) {
memcpy((char *) buffer + (part1 << mBitShift), mPipe->mBuffer, part2 << mBitShift);
}
}
mPipe->updateFrontAndNRPTS(red + mPipe->mFront, nextReadPTS);
mFramesRead += red;
}
return red;
}
const ClipBase* Snapshot::serializeIntersectedClip(LinearAllocator& allocator,
const ClipBase* recordedClip, const Matrix4& recordedClipTransform) {
auto target = this;
if (CC_UNLIKELY(recordedClip && recordedClip->intersectWithRoot)) {
// Clip must be intersected with root, instead of current clip.
target = getClipRoot(this);
}
return target->mClipArea->serializeIntersectedClip(allocator,
recordedClip, recordedClipTransform);
}
