void
BasicShadowableThebesLayer::PaintBuffer(gfxContext* aContext,
const nsIntRegion& aRegionToDraw,
const nsIntRegion& aExtendedRegionToDraw,
const nsIntRegion& aRegionToInvalidate,
bool aDidSelfCopy,
LayerManager::DrawThebesLayerCallback aCallback,
void* aCallbackData)
{
ContentClientRemote* contentClientRemote = static_cast<ContentClientRemote*>(mContentClient.get());
MOZ_ASSERT(contentClientRemote->GetIPDLActor() || !HasShadow());
// NB: this just throws away the entire valid region if there are
// too many rects.
mValidRegion.SimplifyInward(8);
Base::PaintBuffer(aContext,
aRegionToDraw, aExtendedRegionToDraw, aRegionToInvalidate,
aDidSelfCopy,
aCallback, aCallbackData);
if (!HasShadow() || BasicManager()->IsTransactionIncomplete()) {
return;
}
// Hold(this) ensures this layer is kept alive through the current transaction
// The ContentClient assumes this layer is kept alive (e.g., in CreateBuffer,
// DestroyThebesBuffer), so deleting this Hold for whatever reason will break things.
BasicManager()->Hold(this);
contentClientRemote->Updated(aRegionToDraw,
mVisibleRegion,
aDidSelfCopy);
}
ClientLayer::~ClientLayer()
{
if (HasShadow()) {
PLayerChild::Send__delete__(GetShadow());
}
MOZ_COUNT_DTOR(ClientLayer);
}
void
BasicShadowableThebesLayer::PaintThebes(gfxContext* aContext,
Layer* aMaskLayer,
LayerManager::DrawThebesLayerCallback aCallback,
void* aCallbackData,
ReadbackProcessor* aReadback)
{
if (!HasShadow()) {
BasicThebesLayer::PaintThebes(aContext, aMaskLayer, aCallback, aCallbackData, aReadback);
return;
}
if (aMaskLayer) {
static_cast<BasicImplData*>(aMaskLayer->ImplData())
->Paint(aContext, nullptr);
}
if (!mContentClient) {
mContentClient = ContentClient::CreateContentClient(BasicManager());
if (!mContentClient) {
return;
}
mContentClient->Connect();
BasicManager()->Attach(mContentClient, this);
MOZ_ASSERT(mContentClient->GetForwarder());
}
mContentClient->BeginPaint();
BasicThebesLayer::PaintThebes(aContext, nullptr, aCallback, aCallbackData, aReadback);
mContentClient->EndPaint();
}
void
ClientCanvasLayer::RenderLayer()
{
PROFILER_LABEL("ClientCanvasLayer", "RenderLayer",
js::ProfileEntry::Category::GRAPHICS);
RenderMaskLayers(this);
if (!mCanvasClient) {
TextureFlags flags = TextureFlags::IMMEDIATE_UPLOAD;
if (mOriginPos == gl::OriginPos::BottomLeft) {
flags |= TextureFlags::ORIGIN_BOTTOM_LEFT;
}
if (!mGLContext) {
// We don't support locking for buffer surfaces currently
flags |= TextureFlags::IMMEDIATE_UPLOAD;
}
if (!mIsAlphaPremultiplied) {
flags |= TextureFlags::NON_PREMULTIPLIED;
}
mCanvasClient = CanvasClient::CreateCanvasClient(GetCanvasClientType(),
ClientManager()->AsShadowForwarder(),
flags);
if (!mCanvasClient) {
return;
}
if (HasShadow()) {
if (mAsyncRenderer) {
static_cast<CanvasClientBridge*>(mCanvasClient.get())->SetLayer(this);
} else {
mCanvasClient->Connect();
ClientManager()->AsShadowForwarder()->Attach(mCanvasClient, this);
}
}
}
if (mCanvasClient && mAsyncRenderer) {
mCanvasClient->UpdateAsync(mAsyncRenderer);
}
if (!IsDirty()) {
return;
}
Painted();
FirePreTransactionCallback();
if (mBufferProvider && mBufferProvider->GetTextureClient()) {
mCanvasClient->UpdateFromTexture(mBufferProvider->GetTextureClient());
} else {
mCanvasClient->Update(gfx::IntSize(mBounds.width, mBounds.height), this);
}
FireDidTransactionCallback();
ClientManager()->Hold(this);
mCanvasClient->Updated();
}
void
ClientCanvasLayer::RenderLayer()
{
PROFILER_LABEL("ClientCanvasLayer", "RenderLayer",
js::ProfileEntry::Category::GRAPHICS);
if (GetMaskLayer()) {
ToClientLayer(GetMaskLayer())->RenderLayer();
}
if (!IsDirty()) {
return;
}
if (!mCanvasClient) {
TextureFlags flags = TextureFlags::IMMEDIATE_UPLOAD;
if (mNeedsYFlip) {
flags |= TextureFlags::NEEDS_Y_FLIP;
}
if (!mGLContext) {
// We don't support locking for buffer surfaces currently
flags |= TextureFlags::IMMEDIATE_UPLOAD;
} else {
// GLContext's SurfaceStream handles ownership itself,
// and doesn't require layers to do any deallocation.
flags |= TextureFlags::DEALLOCATE_CLIENT;
}
if (!mIsAlphaPremultiplied) {
flags |= TextureFlags::NON_PREMULTIPLIED;
}
mCanvasClient = CanvasClient::CreateCanvasClient(GetCanvasClientType(),
ClientManager()->AsShadowForwarder(),
flags);
if (!mCanvasClient) {
return;
}
if (HasShadow()) {
mCanvasClient->Connect();
ClientManager()->AsShadowForwarder()->Attach(mCanvasClient, this);
}
}
FirePreTransactionCallback();
mCanvasClient->Update(gfx::IntSize(mBounds.width, mBounds.height), this);
FireDidTransactionCallback();
ClientManager()->Hold(this);
mCanvasClient->Updated();
mCanvasClient->OnTransaction();
}
void
BasicShadowableColorLayer::Paint(gfxContext* aContext, Layer* aMaskLayer)
{
BasicColorLayer::Paint(aContext, aMaskLayer);
if (!HasShadow()) {
return;
}
if (aMaskLayer) {
static_cast<BasicImplData*>(aMaskLayer->ImplData())
->Paint(aContext, nullptr);
}
}
void
ClientCanvasLayer::RenderLayer()
{
PROFILER_LABEL("ClientCanvasLayer", "Paint");
if (!IsDirty()) {
return;
}
if (GetMaskLayer()) {
ToClientLayer(GetMaskLayer())->RenderLayer();
}
if (!mCanvasClient) {
TextureFlags flags = TEXTURE_IMMEDIATE_UPLOAD;
if (mNeedsYFlip) {
flags |= TEXTURE_NEEDS_Y_FLIP;
}
bool isCrossProcess = !(XRE_GetProcessType() == GeckoProcessType_Default);
//Append TEXTURE_DEALLOCATE_CLIENT flag for streaming buffer under OOPC case
if (isCrossProcess && mGLContext) {
GLScreenBuffer* screen = mGLContext->Screen();
if (screen && screen->Stream()) {
flags |= TEXTURE_DEALLOCATE_CLIENT;
}
}
mCanvasClient = CanvasClient::CreateCanvasClient(GetCanvasClientType(),
ClientManager(), flags);
if (!mCanvasClient) {
return;
}
if (HasShadow()) {
mCanvasClient->Connect();
ClientManager()->Attach(mCanvasClient, this);
}
}
FirePreTransactionCallback();
mCanvasClient->Update(gfx::IntSize(mBounds.width, mBounds.height), this);
FireDidTransactionCallback();
ClientManager()->Hold(this);
mCanvasClient->Updated();
mCanvasClient->OnTransaction();
}
void
BasicShadowableCanvasLayer::Initialize(const Data& aData)
{
BasicCanvasLayer::Initialize(aData);
if (!HasShadow())
return;
// XXX won't get here currently; need to figure out what to do on
// canvas resizes
if (IsSurfaceDescriptorValid(mBackBuffer)) {
AutoOpenSurface backSurface(OPEN_READ_ONLY, mBackBuffer);
if (gfxIntSize(mBounds.width, mBounds.height) != backSurface.Size()) {
DestroyBackBuffer();
}
}
}
void
BasicTiledThebesLayer::PaintThebes(gfxContext* aContext,
Layer* aMaskLayer,
LayerManager::DrawThebesLayerCallback aCallback,
void* aCallbackData,
ReadbackProcessor* aReadback)
{
if (!HasShadow()) {
NS_ASSERTION(false, "Shadow requested for painting\n");
return;
}
if (!aCallback) {
BasicManager()->SetTransactionIncomplete();
return;
}
if (!mContentClient) {
mContentClient = new TiledContentClient(this, BasicManager());
mContentClient->Connect();
BasicManager()->Attach(mContentClient, this);
MOZ_ASSERT(mContentClient->GetForwarder());
}
if (mContentClient->mTiledBuffer.HasFormatChanged()) {
mValidRegion = nsIntRegion();
}
nsIntRegion invalidRegion = mVisibleRegion;
invalidRegion.Sub(invalidRegion, mValidRegion);
if (invalidRegion.IsEmpty()) {
EndPaint(true);
return;
}
// Only paint the mask layer on the first transaction.
if (aMaskLayer && !BasicManager()->IsRepeatTransaction()) {
static_cast<BasicImplData*>(aMaskLayer->ImplData())->Paint(aContext, nullptr);
}
// Fast path for no progressive updates, no low-precision updates and no
// critical display-port set.
if (!gfxPlatform::UseProgressiveTilePainting() &&
!gfxPlatform::UseLowPrecisionBuffer() &&
GetParent()->GetFrameMetrics().mCriticalDisplayPort.IsEmpty()) {
mValidRegion = mVisibleRegion;
NS_ASSERTION(!BasicManager()->IsRepeatTransaction(), "Didn't paint our mask layer");
mContentClient->mTiledBuffer.PaintThebes(mValidRegion, invalidRegion,
aCallback, aCallbackData);
BasicManager()->Hold(this);
mContentClient->LockCopyAndWrite(TiledContentClient::TILED_BUFFER);
return;
}
// Calculate everything we need to perform the paint.
BeginPaint();
if (mPaintData.mPaintFinished) {
return;
}
// Make sure that tiles that fall outside of the visible region are
// discarded on the first update.
if (!BasicManager()->IsRepeatTransaction()) {
mValidRegion.And(mValidRegion, mVisibleRegion);
if (!mPaintData.mLayerCriticalDisplayPort.IsEmpty()) {
// Make sure that tiles that fall outside of the critical displayport are
// discarded on the first update.
mValidRegion.And(mValidRegion, mPaintData.mLayerCriticalDisplayPort);
}
}
nsIntRegion lowPrecisionInvalidRegion;
if (!mPaintData.mLayerCriticalDisplayPort.IsEmpty()) {
if (gfxPlatform::UseLowPrecisionBuffer()) {
// Calculate the invalid region for the low precision buffer
lowPrecisionInvalidRegion.Sub(mVisibleRegion, mLowPrecisionValidRegion);
// Remove the valid region from the low precision valid region (we don't
// validate this part of the low precision buffer).
lowPrecisionInvalidRegion.Sub(lowPrecisionInvalidRegion, mValidRegion);
}
// Clip the invalid region to the critical display-port
invalidRegion.And(invalidRegion, mPaintData.mLayerCriticalDisplayPort);
if (invalidRegion.IsEmpty() && lowPrecisionInvalidRegion.IsEmpty()) {
EndPaint(true);
return;
}
}
if (!invalidRegion.IsEmpty() && mPaintData.mLowPrecisionPaintCount == 0) {
bool updatedBuffer = false;
// Only draw progressively when the resolution is unchanged.
if (gfxPlatform::UseProgressiveTilePainting() &&
!BasicManager()->HasShadowTarget() &&
mContentClient->mTiledBuffer.GetFrameResolution() == mPaintData.mResolution) {
// Store the old valid region, then clear it before painting.
// We clip the old valid region to the visible region, as it only gets
// used to decide stale content (currently valid and previously visible)
nsIntRegion oldValidRegion = mContentClient->mTiledBuffer.GetValidRegion();
oldValidRegion.And(oldValidRegion, mVisibleRegion);
if (!mPaintData.mLayerCriticalDisplayPort.IsEmpty()) {
oldValidRegion.And(oldValidRegion, mPaintData.mLayerCriticalDisplayPort);
}
updatedBuffer =
mContentClient->mTiledBuffer.ProgressiveUpdate(mValidRegion, invalidRegion,
oldValidRegion, &mPaintData,
aCallback, aCallbackData);
} else {
updatedBuffer = true;
mValidRegion = mVisibleRegion;
if (!mPaintData.mLayerCriticalDisplayPort.IsEmpty()) {
mValidRegion.And(mValidRegion, mPaintData.mLayerCriticalDisplayPort);
}
mContentClient->mTiledBuffer.SetFrameResolution(mPaintData.mResolution);
mContentClient->mTiledBuffer.PaintThebes(mValidRegion, invalidRegion,
aCallback, aCallbackData);
}
if (updatedBuffer) {
mPaintData.mFirstPaint = false;
BasicManager()->Hold(this);
mContentClient->LockCopyAndWrite(TiledContentClient::TILED_BUFFER);
// If there are low precision updates, mark the paint as unfinished and
// request a repeat transaction.
if (!lowPrecisionInvalidRegion.IsEmpty() && mPaintData.mPaintFinished) {
BasicManager()->SetRepeatTransaction();
mPaintData.mLowPrecisionPaintCount = 1;
mPaintData.mPaintFinished = false;
}
// Return so that low precision updates aren't performed in the same
// transaction as high-precision updates.
EndPaint(false);
return;
}
}
// Render the low precision buffer, if there's area to invalidate and the
// visible region is larger than the critical display port.
bool updatedLowPrecision = false;
if (!lowPrecisionInvalidRegion.IsEmpty() &&
!nsIntRegion(mPaintData.mLayerCriticalDisplayPort).Contains(mVisibleRegion)) {
nsIntRegion oldValidRegion =
mContentClient->mLowPrecisionTiledBuffer.GetValidRegion();
oldValidRegion.And(oldValidRegion, mVisibleRegion);
// If the frame resolution or format have changed, invalidate the buffer
if (mContentClient->mLowPrecisionTiledBuffer.GetFrameResolution() != mPaintData.mResolution ||
mContentClient->mLowPrecisionTiledBuffer.HasFormatChanged()) {
if (!mLowPrecisionValidRegion.IsEmpty()) {
updatedLowPrecision = true;
}
oldValidRegion.SetEmpty();
mLowPrecisionValidRegion.SetEmpty();
mContentClient->mLowPrecisionTiledBuffer.SetFrameResolution(mPaintData.mResolution);
lowPrecisionInvalidRegion = mVisibleRegion;
}
// Invalidate previously valid content that is no longer visible
if (mPaintData.mLowPrecisionPaintCount == 1) {
mLowPrecisionValidRegion.And(mLowPrecisionValidRegion, mVisibleRegion);
}
mPaintData.mLowPrecisionPaintCount++;
// Remove the valid high-precision region from the invalid low-precision
// region. We don't want to spend time drawing things twice.
lowPrecisionInvalidRegion.Sub(lowPrecisionInvalidRegion, mValidRegion);
if (!lowPrecisionInvalidRegion.IsEmpty()) {
updatedLowPrecision = mContentClient->mLowPrecisionTiledBuffer
.ProgressiveUpdate(mLowPrecisionValidRegion,
lowPrecisionInvalidRegion,
oldValidRegion, &mPaintData,
aCallback, aCallbackData);
}
} else if (!mLowPrecisionValidRegion.IsEmpty()) {
// Clear the low precision tiled buffer
updatedLowPrecision = true;
mLowPrecisionValidRegion.SetEmpty();
mContentClient->mLowPrecisionTiledBuffer.PaintThebes(mLowPrecisionValidRegion,
mLowPrecisionValidRegion,
aCallback, aCallbackData);
}
// We send a Painted callback if we clear the valid region of the low
// precision buffer, so that the shadow buffer's valid region can be updated
// and the associated resources can be freed.
if (updatedLowPrecision) {
BasicManager()->Hold(this);
mContentClient->LockCopyAndWrite(TiledContentClient::LOW_PRECISION_TILED_BUFFER);
}
EndPaint(false);
}
void
BasicShadowableCanvasLayer::Paint(gfxContext* aContext, Layer* aMaskLayer)
{
if (!HasShadow()) {
BasicCanvasLayer::Paint(aContext, aMaskLayer);
return;
}
if (!IsDirty())
return;
if (mGLContext &&
!mForceReadback &&
BasicManager()->GetParentBackendType() == mozilla::layers::LAYERS_OPENGL) {
TextureImage::TextureShareType flags;
// if process type is default, then it is single-process (non-e10s)
if (XRE_GetProcessType() == GeckoProcessType_Default)
flags = TextureImage::ThreadShared;
else
flags = TextureImage::ProcessShared;
SharedTextureHandle handle = GetSharedBackBufferHandle();
if (!handle) {
handle = mGLContext->CreateSharedHandle(flags);
if (handle) {
mBackBuffer = SharedTextureDescriptor(flags, handle, mBounds.Size(), false);
}
}
if (handle) {
mGLContext->MakeCurrent();
mGLContext->UpdateSharedHandle(flags, handle);
// call Painted() to reset our dirty 'bit'
Painted();
FireDidTransactionCallback();
BasicManager()->PaintedCanvas(BasicManager()->Hold(this),
mNeedsYFlip,
mBackBuffer);
// Move SharedTextureHandle ownership to ShadowLayer
mBackBuffer = SurfaceDescriptor();
return;
}
}
bool isOpaque = (GetContentFlags() & CONTENT_OPAQUE);
if (!IsSurfaceDescriptorValid(mBackBuffer) ||
isOpaque != mBufferIsOpaque) {
DestroyBackBuffer();
mBufferIsOpaque = isOpaque;
gfxIntSize size(mBounds.width, mBounds.height);
gfxASurface::gfxContentType type = isOpaque ?
gfxASurface::CONTENT_COLOR : gfxASurface::CONTENT_COLOR_ALPHA;
if (!BasicManager()->AllocBuffer(size, type, &mBackBuffer)) {
NS_RUNTIMEABORT("creating CanvasLayer back buffer failed!");
}
}
AutoOpenSurface autoBackSurface(OPEN_READ_WRITE, mBackBuffer);
if (aMaskLayer) {
static_cast<BasicImplData*>(aMaskLayer->ImplData())
->Paint(aContext, nullptr);
}
UpdateSurface(autoBackSurface.Get(), nullptr);
FireDidTransactionCallback();
BasicManager()->PaintedCanvas(BasicManager()->Hold(this),
mNeedsYFlip, mBackBuffer);
}