Revert of mojo: Convert gles2 to the new thunking system

mojo/gles2/gles2_support_impl.cc

+// Copyright 2014 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 "mojo/gles2/gles2_support_impl.h"
+
+#include "base/lazy_instance.h"
+#include "gpu/command_buffer/client/gles2_interface.h"
+#include "mojo/gles2/gles2_context.h"
+#include "mojo/public/gles2/gles2_interface.h"
+#include "mojo/public/gles2/gles2_private.h"
+
+namespace mojo {
+namespace gles2 {
+
+namespace {
+
+class GLES2ImplForCommandBuffer : public GLES2Interface {
+ public:
+  GLES2ImplForCommandBuffer() : gpu_interface_(NULL) {}
+
+  void set_gpu_interface(gpu::gles2::GLES2Interface* gpu_interface) {
+    gpu_interface_ = gpu_interface;
+  }
+  gpu::gles2::GLES2Interface* gpu_interface() const { return gpu_interface_; }
+
+#define VISIT_GL_CALL(Function, ReturnType, PARAMETERS, ARGUMENTS) \
+  virtual ReturnType Function PARAMETERS OVERRIDE {                \
+    return gpu_interface_->Function ARGUMENTS;                     \
+  }
+#include "mojo/public/c/gles2/gles2_call_visitor_autogen.h"
+#undef VISIT_GL_CALL
+
+ private:
+  gpu::gles2::GLES2Interface* gpu_interface_;
+  DISALLOW_COPY_AND_ASSIGN(GLES2ImplForCommandBuffer);
+};
+
+base::LazyInstance<GLES2ImplForCommandBuffer> g_gles2_interface =
+    LAZY_INSTANCE_INITIALIZER;
+
+}  // anonymous namespace
+
+GLES2SupportImpl::GLES2SupportImpl() : async_waiter_(NULL) {}
+GLES2SupportImpl::~GLES2SupportImpl() {}
+
+// static
+void GLES2SupportImpl::Init() { GLES2Support::Init(new GLES2SupportImpl()); }
+
+void GLES2SupportImpl::Initialize(const MojoAsyncWaiter* async_waiter) {
+  DCHECK(!async_waiter_);
+  DCHECK(async_waiter);
+  async_waiter_ = async_waiter;
+}
+
+void GLES2SupportImpl::Terminate() {
+  DCHECK(async_waiter_);
+  async_waiter_ = NULL;
+}
+
+MojoGLES2Context GLES2SupportImpl::CreateContext(
+    MessagePipeHandle handle,
+    MojoGLES2ContextLost lost_callback,
+    void* closure) {
+  ScopedMessagePipeHandle scoped_handle(handle);
+  scoped_ptr<GLES2Context> client(new GLES2Context(async_waiter_,
+                                                   scoped_handle.Pass(),
+                                                   lost_callback,
+                                                   closure));
+  if (!client->Initialize())
+    client.reset();
+  return client.release();
+}
+
+void GLES2SupportImpl::DestroyContext(MojoGLES2Context context) {
+  delete static_cast<GLES2Context*>(context);
+}
+
+void GLES2SupportImpl::MakeCurrent(MojoGLES2Context context) {
+  gpu::gles2::GLES2Interface* interface = NULL;
+  if (context) {
+    GLES2Context* client = static_cast<GLES2Context*>(context);
+    interface = client->interface();
+    DCHECK(interface);
+  }
+  g_gles2_interface.Get().set_gpu_interface(interface);
+}
+
+void GLES2SupportImpl::SwapBuffers() {
+  g_gles2_interface.Get().gpu_interface()->SwapBuffers();
+}
+
+void* GLES2SupportImpl::GetGLES2Interface(MojoGLES2Context context) {
+  return static_cast<GLES2Context*>(context)->interface();
+}
+
+void* GLES2SupportImpl::GetContextSupport(MojoGLES2Context context) {
+  return static_cast<GLES2Context*>(context)->context_support();
+}
+
+GLES2Interface* GLES2SupportImpl::GetGLES2InterfaceForCurrentContext() {
+  return &g_gles2_interface.Get();
+}
+
+}  // namespace gles2
+}  // namespace mojo