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