Source code
Revision control
Copy as Markdown
Other Tools
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "gfxPlatformWorker.h"
#include "mozilla/dom/WorkerCommon.h"
#include "mozilla/dom/WorkerRef.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/ThreadLocal.h"
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::gfx;
MOZ_THREAD_LOCAL(gfxPlatformWorker*) gfxPlatformWorker::sInstance;
/* static */ gfxPlatformWorker* gfxPlatformWorker::Get() {
if (!sInstance.init()) {
return nullptr;
}
gfxPlatformWorker* instance = sInstance.get();
if (instance) {
return instance;
}
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
if (!workerPrivate) {
return nullptr;
}
RefPtr<WeakWorkerRef> workerRef = WeakWorkerRef::Create(
workerPrivate, []() { gfxPlatformWorker::Shutdown(); });
if (!workerRef) {
return nullptr;
}
instance = new gfxPlatformWorker(std::move(workerRef));
sInstance.set(instance);
return instance;
}
/* static */ void gfxPlatformWorker::Shutdown() {
if (!sInstance.init()) {
return;
}
gfxPlatformWorker* instance = sInstance.get();
if (!instance) {
return;
}
sInstance.set(nullptr);
delete instance;
}
gfxPlatformWorker::gfxPlatformWorker(RefPtr<WeakWorkerRef>&& aWorkerRef)
: mWorkerRef(std::move(aWorkerRef)) {}
gfxPlatformWorker::~gfxPlatformWorker() = default;
RefPtr<mozilla::gfx::DrawTarget>
gfxPlatformWorker::ScreenReferenceDrawTarget() {
if (!mScreenReferenceDrawTarget) {
mScreenReferenceDrawTarget = Factory::CreateDrawTarget(
BackendType::SKIA, IntSize(1, 1), SurfaceFormat::B8G8R8A8);
}
return mScreenReferenceDrawTarget;
}