1 files changed, 93 insertions, 0 deletions
diff --git a/cc/debug/fake_context_provider.cc b/cc/debug/fake_context_provider.cc
new file mode 100644
index 0000000..e2c78df
--- /dev/null
+++ b/cc/debug/fake_context_provider.cc
@@ -0,0 +1,93 @@
+// 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/debug/fake_context_provider.h"
+
+#include "base/logging.h"
+#include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
+
+namespace cc {
+
+FakeContextProvider::FakeContextProvider()
+    : bound_(false),
+      destroyed_(false) {
+  DCHECK(main_thread_checker_.CalledOnValidThread());
+  context_thread_checker_.DetachFromThread();
+}
+
+FakeContextProvider::~FakeContextProvider() {
+  DCHECK(main_thread_checker_.CalledOnValidThread() ||
+         context_thread_checker_.CalledOnValidThread());
+}
+
+bool FakeContextProvider::InitializeOnMainThread(
+    const CreateCallback& create_callback) {
+  DCHECK(main_thread_checker_.CalledOnValidThread());
+
+  DCHECK(!context3d_);
+  DCHECK(!create_callback.is_null());
+  context3d_ = create_callback.Run();
+  return context3d_;
+}
+
+bool FakeContextProvider::BindToCurrentThread() {
+  DCHECK(context3d_);
+
+  // This is called on the thread the context will be used.
+  DCHECK(context_thread_checker_.CalledOnValidThread());
+
+  if (bound_)
+    return true;
+
+  bound_ = true;
+  if (!context3d_->makeContextCurrent()) {
+    base::AutoLock lock(destroyed_lock_);
+    destroyed_ = true;
+    return false;
+  }
+  return true;
+}
+
+WebKit::WebGraphicsContext3D* FakeContextProvider::Context3d() {
+  DCHECK(context3d_);
+  DCHECK(bound_);
+  DCHECK(context_thread_checker_.CalledOnValidThread());
+
+  return context3d_.get();
+}
+
+class GrContext* FakeContextProvider::GrContext() {
+  DCHECK(context3d_);
+  DCHECK(bound_);
+  DCHECK(context_thread_checker_.CalledOnValidThread());
+
+  // TODO(danakj): Make a fake GrContext that works with a fake Context3d.
+  return NULL;
+}
+
+void FakeContextProvider::VerifyContexts() {
+  DCHECK(context3d_);
+  DCHECK(bound_);
+  DCHECK(context_thread_checker_.CalledOnValidThread());
+
+  if (context3d_->isContextLost()) {
+    base::AutoLock lock(destroyed_lock_);
+    destroyed_ = true;
+  }
+}
+
+bool FakeContextProvider::DestroyedOnMainThread() {
+  DCHECK(main_thread_checker_.CalledOnValidThread());
+
+  base::AutoLock lock(destroyed_lock_);
+  return destroyed_;
+}
+
+void FakeContextProvider::SetLostContextCallback(
+    const LostContextCallback& cb) {
+  DCHECK(context_thread_checker_.CalledOnValidThread());
+  NOTIMPLEMENTED();
+}
+
+}  // namespace cc