void
CompositableParentManager::ReturnTextureDataIfNecessary(CompositableHost* aCompositable,
EditReplyVector& replyv,
PCompositableParent* aParent)
{
if (!aCompositable || !aCompositable->GetCompositableBackendSpecificData()) {
return;
}
const std::vector< RefPtr<TextureHost> > textureList =
aCompositable->GetCompositableBackendSpecificData()->GetPendingReleaseFenceTextureList();
// Return pending Texture data
for (size_t i = 0; i < textureList.size(); i++) {
// File descriptor number is limited to 4 per IPC message.
// See Bug 986253
if (mPrevFenceHandles.size() >= 4) {
break;
}
TextureHostOGL* hostOGL = textureList[i]->AsHostOGL();
PTextureParent* actor = textureList[i]->GetIPDLActor();
if (!hostOGL || !actor) {
continue;
}
android::sp<android::Fence> fence = hostOGL->GetAndResetReleaseFence();
if (fence.get() && fence->isValid()) {
FenceHandle handle = FenceHandle(fence);
replyv.push_back(ReturnReleaseFence(aParent, nullptr, actor, nullptr, handle));
// Hold fence handle to prevent fence's file descriptor is closed before IPC happens.
mPrevFenceHandles.push_back(handle);
}
}
aCompositable->GetCompositableBackendSpecificData()->ClearPendingReleaseFenceTextureList();
}
FenceHandle
TextureHost::GetAndResetReleaseFenceHandle()
{
#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
TextureHostOGL* hostOGL = this->AsHostOGL();
if (!hostOGL) {
return FenceHandle();
}
android::sp<android::Fence> fence = hostOGL->GetAndResetReleaseFence();
if (fence.get() && fence->isValid()) {
FenceHandle handle = FenceHandle(fence);
return handle;
}
#endif
return FenceHandle();
}
void
TextureParent::SendFenceHandleIfPresent()
{
#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
if (mTextureHost) {
TextureHostOGL* hostOGL = mTextureHost->AsHostOGL();
if (!hostOGL) {
return;
}
android::sp<android::Fence> fence = hostOGL->GetAndResetReleaseFence();
if (fence.get() && fence->isValid()) {
// HWC might not provide Fence.
// In this case, HWC implicitly handles buffer's fence.
FenceHandle handle = FenceHandle(fence);
RefPtr<FenceDeliveryTracker> tracker = new FenceDeliveryTracker(handle);
mCompositableManager->SendFenceHandle(tracker, this, handle);
}
}
#endif
}
void
TextureParent::CompositorRecycle()
{
mTextureHost->ClearRecycleCallback();
MaybeFenceHandle handle = null_t();
#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
if (mTextureHost) {
TextureHostOGL* hostOGL = mTextureHost->AsHostOGL();
android::sp<android::Fence> fence = hostOGL->GetAndResetReleaseFence();
if (fence.get() && fence->isValid()) {
handle = FenceHandle(fence);
// HWC might not provide Fence.
// In this case, HWC implicitly handles buffer's fence.
}
}
#endif
mozilla::unused << SendCompositorRecycle(handle);
// Don't forget to prepare for the next reycle
mWaitForClientRecycle = mTextureHost;
}
