void
CanvasClient2D::Update(gfx::IntSize aSize, ClientCanvasLayer* aLayer)
{
AutoRemoveTexture autoRemove(this);
if (mBuffer &&
(mBuffer->IsImmutable() || mBuffer->GetSize() != aSize)) {
autoRemove.mTexture = mBuffer;
mBuffer = nullptr;
}
bool bufferCreated = false;
if (!mBuffer) {
bool isOpaque = (aLayer->GetContentFlags() & Layer::CONTENT_OPAQUE);
gfxContentType contentType = isOpaque
? gfxContentType::COLOR
: gfxContentType::COLOR_ALPHA;
gfxImageFormat format
= gfxPlatform::GetPlatform()->OptimalFormatForContent(contentType);
TextureFlags flags = TextureFlags::DEFAULT;
if (mTextureFlags & TextureFlags::NEEDS_Y_FLIP) {
flags |= TextureFlags::NEEDS_Y_FLIP;
}
gfx::SurfaceFormat surfaceFormat = gfx::ImageFormatToSurfaceFormat(format);
mBuffer = CreateTextureClientForCanvas(surfaceFormat, aSize, flags, aLayer);
MOZ_ASSERT(mBuffer->CanExposeDrawTarget());
mBuffer->AllocateForSurface(aSize);
bufferCreated = true;
}
if (!mBuffer->Lock(OpenMode::OPEN_WRITE_ONLY)) {
mBuffer = nullptr;
return;
}
bool updated = false;
{
// Restrict drawTarget to a scope so that terminates before Unlock.
RefPtr<DrawTarget> target =
mBuffer->BorrowDrawTarget();
if (target) {
aLayer->UpdateTarget(target);
updated = true;
}
}
mBuffer->Unlock();
if (bufferCreated && !AddTextureClient(mBuffer)) {
mBuffer = nullptr;
return;
}
if (updated) {
GetForwarder()->UpdatedTexture(this, mBuffer, nullptr);
GetForwarder()->UseTexture(this, mBuffer);
}
}
void
CanvasClient2D::Update(gfx::IntSize aSize, ClientCanvasLayer* aLayer)
{
AutoRemoveTexture autoRemove(this);
if (mBuffer &&
(mBuffer->IsImmutable() || mBuffer->GetSize() != aSize)) {
autoRemove.mTexture = mBuffer;
mBuffer = nullptr;
}
bool bufferCreated = false;
if (!mBuffer) {
bool isOpaque = (aLayer->GetContentFlags() & Layer::CONTENT_OPAQUE);
gfxContentType contentType = isOpaque
? gfxContentType::COLOR
: gfxContentType::COLOR_ALPHA;
gfx::SurfaceFormat surfaceFormat
= gfxPlatform::GetPlatform()->Optimal2DFormatForContent(contentType);
TextureFlags flags = TextureFlags::DEFAULT;
if (mTextureFlags & TextureFlags::ORIGIN_BOTTOM_LEFT) {
flags |= TextureFlags::ORIGIN_BOTTOM_LEFT;
}
mBuffer = CreateTextureClientForCanvas(surfaceFormat, aSize, flags, aLayer);
if (!mBuffer) {
NS_WARNING("Failed to allocate the TextureClient");
return;
}
MOZ_ASSERT(mBuffer->CanExposeDrawTarget());
bufferCreated = true;
}
bool updated = false;
{
TextureClientAutoLock autoLock(mBuffer, OpenMode::OPEN_WRITE_ONLY);
if (!autoLock.Succeeded()) {
mBuffer = nullptr;
return;
}
RefPtr<DrawTarget> target = mBuffer->BorrowDrawTarget();
if (target) {
aLayer->UpdateTarget(target);
updated = true;
}
}
if (bufferCreated && !AddTextureClient(mBuffer)) {
mBuffer = nullptr;
return;
}
if (updated) {
nsAutoTArray<CompositableForwarder::TimedTextureClient,1> textures;
CompositableForwarder::TimedTextureClient* t = textures.AppendElement();
t->mTextureClient = mBuffer;
t->mPictureRect = nsIntRect(nsIntPoint(0, 0), mBuffer->GetSize());
t->mFrameID = mFrameID;
GetForwarder()->UseTextures(this, textures);
mBuffer->SyncWithObject(GetForwarder()->GetSyncObject());
}
}
