Revert "Delete CC."

cc/test/test_context_provider.cc

+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "cc/test/test_context_provider.h"
+
+#include <set>
+#include <vector>
+
+#include "base/bind.h"
+#include "base/callback_helpers.h"
+#include "base/logging.h"
+#include "cc/test/test_gles2_interface.h"
+#include "third_party/skia/include/gpu/GrContext.h"
+#include "third_party/skia/include/gpu/gl/SkNullGLContext.h"
+
+namespace cc {
+
+// static
+scoped_refptr<TestContextProvider> TestContextProvider::Create() {
+  return Create(TestWebGraphicsContext3D::Create().Pass());
+}
+
+// static
+scoped_refptr<TestContextProvider> TestContextProvider::Create(
+    scoped_ptr<TestWebGraphicsContext3D> context) {
+  if (!context)
+    return NULL;
+  return new TestContextProvider(context.Pass());
+}
+
+TestContextProvider::TestContextProvider(
+    scoped_ptr<TestWebGraphicsContext3D> context)
+    : context3d_(context.Pass()),
+      context_gl_(new TestGLES2Interface(context3d_.get())),
+      bound_(false),
+      destroyed_(false),
+      weak_ptr_factory_(this) {
+  DCHECK(main_thread_checker_.CalledOnValidThread());
+  DCHECK(context3d_);
+  context_thread_checker_.DetachFromThread();
+  context3d_->set_test_support(&support_);
+}
+
+TestContextProvider::~TestContextProvider() {
+  DCHECK(main_thread_checker_.CalledOnValidThread() ||
+         context_thread_checker_.CalledOnValidThread());
+}
+
+bool TestContextProvider::BindToCurrentThread() {
+  // This is called on the thread the context will be used.
+  DCHECK(context_thread_checker_.CalledOnValidThread());
+
+  if (bound_)
+    return true;
+
+  if (context3d_->isContextLost()) {
+    base::AutoLock lock(destroyed_lock_);
+    destroyed_ = true;
+    return false;
+  }
+  bound_ = true;
+
+  context3d_->set_context_lost_callback(
+      base::Bind(&TestContextProvider::OnLostContext,
+                 base::Unretained(this)));
+
+  return true;
+}
+
+void TestContextProvider::DetachFromThread() {
+  context_thread_checker_.DetachFromThread();
+}
+
+ContextProvider::Capabilities TestContextProvider::ContextCapabilities() {
+  DCHECK(bound_);
+  DCHECK(context_thread_checker_.CalledOnValidThread());
+
+  return context3d_->test_capabilities();
+}
+
+gpu::gles2::GLES2Interface* TestContextProvider::ContextGL() {
+  DCHECK(context3d_);
+  DCHECK(bound_);
+  DCHECK(context_thread_checker_.CalledOnValidThread());
+
+  return context_gl_.get();
+}
+
+gpu::ContextSupport* TestContextProvider::ContextSupport() {
+  return &support_;
+}
+
+class GrContext* TestContextProvider::GrContext() {
+  DCHECK(bound_);
+  DCHECK(context_thread_checker_.CalledOnValidThread());
+
+  if (gr_context_)
+    return gr_context_.get();
+
+  skia::RefPtr<class SkGLContext> gl_context =
+      skia::AdoptRef(SkNullGLContext::Create(kNone_GrGLStandard));
+  gl_context->makeCurrent();
+  gr_context_ = skia::AdoptRef(GrContext::Create(
+      kOpenGL_GrBackend, reinterpret_cast<GrBackendContext>(gl_context->gl())));
+
+  // If GlContext is already lost, also abandon the new GrContext.
+  if (IsContextLost())
+    gr_context_->abandonContext();
+
+  return gr_context_.get();
+}
+
+void TestContextProvider::SetupLock() {
+}
+
+base::Lock* TestContextProvider::GetLock() {
+  return &context_lock_;
+}
+
+bool TestContextProvider::IsContextLost() {
+  DCHECK(bound_);
+  DCHECK(context_thread_checker_.CalledOnValidThread());
+
+  return context3d_->isContextLost();
+}
+
+void TestContextProvider::VerifyContexts() {
+  DCHECK(bound_);
+  DCHECK(context_thread_checker_.CalledOnValidThread());
+
+  if (context3d_->isContextLost()) {
+    base::AutoLock lock(destroyed_lock_);
+    destroyed_ = true;
+  }
+}
+
+void TestContextProvider::DeleteCachedResources() {
+}
+
+bool TestContextProvider::DestroyedOnMainThread() {
+  DCHECK(main_thread_checker_.CalledOnValidThread());
+
+  base::AutoLock lock(destroyed_lock_);
+  return destroyed_;
+}
+
+void TestContextProvider::OnLostContext() {
+  DCHECK(context_thread_checker_.CalledOnValidThread());
+  {
+    base::AutoLock lock(destroyed_lock_);
+    if (destroyed_)
+      return;
+    destroyed_ = true;
+  }
+  if (!lost_context_callback_.is_null())
+    base::ResetAndReturn(&lost_context_callback_).Run();
+  if (gr_context_)
+    gr_context_->abandonContext();
+}
+
+TestWebGraphicsContext3D* TestContextProvider::TestContext3d() {
+  DCHECK(bound_);
+  DCHECK(context_thread_checker_.CalledOnValidThread());
+
+  return context3d_.get();
+}
+
+TestWebGraphicsContext3D* TestContextProvider::UnboundTestContext3d() {
+  return context3d_.get();
+}
+
+void TestContextProvider::SetMemoryAllocation(
+    const ManagedMemoryPolicy& policy) {
+  if (memory_policy_changed_callback_.is_null())
+    return;
+  memory_policy_changed_callback_.Run(policy);
+}
+
+void TestContextProvider::SetLostContextCallback(
+    const LostContextCallback& cb) {
+  DCHECK(context_thread_checker_.CalledOnValidThread());
+  DCHECK(lost_context_callback_.is_null() || cb.is_null());
+  lost_context_callback_ = cb;
+}
+
+void TestContextProvider::SetMemoryPolicyChangedCallback(
+    const MemoryPolicyChangedCallback& cb) {
+  DCHECK(context_thread_checker_.CalledOnValidThread());
+  DCHECK(memory_policy_changed_callback_.is_null() || cb.is_null());
+  memory_policy_changed_callback_ = cb;
+}
+
+void TestContextProvider::SetMaxTransferBufferUsageBytes(
+    size_t max_transfer_buffer_usage_bytes) {
+  context3d_->SetMaxTransferBufferUsageBytes(max_transfer_buffer_usage_bytes);
+}
+
+}  // namespace cc