Revert 92885 - Completed the implementation for PPB_Graphics3D interface.

webkit/plugins/ppapi/ppb_graphics_3d_impl.cc

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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 "webkit/plugins/ppapi/ppb_graphics_3d_impl.h"
 
-#include "base/message_loop.h"
-#include "gpu/command_buffer/client/gles2_implementation.h"
-#include "webkit/plugins/ppapi/plugin_module.h"
+#include "base/logging.h"
+#include "ppapi/c/pp_completion_callback.h"
+#include "ppapi/c/pp_errors.h"
 #include "webkit/plugins/ppapi/ppapi_plugin_instance.h"
+#include "webkit/plugins/ppapi/resource_tracker.h"
 
 using ppapi::thunk::PPB_Graphics3D_API;
 
 namespace webkit {
 namespace ppapi {
 
-namespace {
-const int32 kCommandBufferSize = 1024 * 1024;
-const int32 kTransferBufferSize = 1024 * 1024;
-
-PP_Bool ShmToHandle(base::SharedMemory* shm,
-                    size_t size,
-                    int* shm_handle,
-                    uint32_t* shm_size) {
-  if (!shm || !shm_handle || !shm_size)
-    return PP_FALSE;
-#if defined(OS_POSIX)
-  *shm_handle = shm->handle().fd;
-#elif defined(OS_WIN)
-  *shm_handle = reinterpret_cast<int>(shm->handle());
-#else
-  #error "Platform not supported."
-#endif
-  *shm_size = size;
-  return PP_TRUE;
-}
-
-PP_Graphics3DTrustedState PPStateFromGPUState(
-    const gpu::CommandBuffer::State& s) {
-  PP_Graphics3DTrustedState state = {
-      s.num_entries,
-      s.get_offset,
-      s.put_offset,
-      s.token,
-      static_cast<PPB_Graphics3DTrustedError>(s.error),
-      s.generation
-  };
-  return state;
-}
-}  // namespace.
-
 PPB_Graphics3D_Impl::PPB_Graphics3D_Impl(PluginInstance* instance)
-    : Resource(instance),
-      bound_to_instance_(false),
-      commit_pending_(false),
-      callback_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {
+    : Resource(instance) {
 }
 
 PPB_Graphics3D_Impl::~PPB_Graphics3D_Impl() {
-  DestroyGLES2Impl();
 }
 
 // static
 PP_Resource PPB_Graphics3D_Impl::Create(PluginInstance* instance,
                                         PP_Config3D_Dev config,
                                         PP_Resource share_context,
                                         const int32_t* attrib_list) {
-  scoped_refptr<PPB_Graphics3D_Impl> graphics_3d(
-      new PPB_Graphics3D_Impl(instance));
-
-  if (!graphics_3d->Init(config, share_context, attrib_list))
+  scoped_refptr<PPB_Graphics3D_Impl> t(new PPB_Graphics3D_Impl(instance));
+  if (!t->Init(config, share_context, attrib_list))
     return 0;
-
-  return graphics_3d->GetReference();
-}
-
-PP_Resource PPB_Graphics3D_Impl::CreateRaw(PluginInstance* instance,
-                                           PP_Config3D_Dev config,
-                                           PP_Resource share_context,
-                                           const int32_t* attrib_list) {
-  scoped_refptr<PPB_Graphics3D_Impl> graphics_3d(
-      new PPB_Graphics3D_Impl(instance));
-
-  if (!graphics_3d->InitRaw(config, share_context, attrib_list))
-    return 0;
-
-  return graphics_3d->GetReference();
+  return t->GetReference();
 }
 
 PPB_Graphics3D_API* PPB_Graphics3D_Impl::AsPPB_Graphics3D_API() {
   return this;
 }
 
-PP_Bool PPB_Graphics3D_Impl::InitCommandBuffer(int32_t size) {
-  return PP_FromBool(GetCommandBuffer()->Initialize(size));
+int32_t PPB_Graphics3D_Impl::GetAttribs(int32_t* attrib_list) {
+  // TODO(alokp): Implement me.
+  return PP_ERROR_FAILED;
 }
 
-PP_Bool PPB_Graphics3D_Impl::GetRingBuffer(int* shm_handle,
-                                           uint32_t* shm_size) {
-  gpu::Buffer buffer = GetCommandBuffer()->GetRingBuffer();
-  return ShmToHandle(buffer.shared_memory, buffer.size, shm_handle, shm_size);
+int32_t PPB_Graphics3D_Impl::SetAttribs(int32_t* attrib_list) {
+  // TODO(alokp): Implement me.
+  return PP_ERROR_FAILED;
 }
 
-PP_Graphics3DTrustedState PPB_Graphics3D_Impl::GetState() {
-  return PPStateFromGPUState(GetCommandBuffer()->GetState());
-}
-
-int32_t PPB_Graphics3D_Impl::CreateTransferBuffer(uint32_t size) {
-  return GetCommandBuffer()->CreateTransferBuffer(size, -1);
-}
-
-PP_Bool PPB_Graphics3D_Impl::DestroyTransferBuffer(int32_t id) {
-  GetCommandBuffer()->DestroyTransferBuffer(id);
-  return PP_TRUE;
-}
-
-PP_Bool PPB_Graphics3D_Impl::GetTransferBuffer(int32_t id,
-                                               int* shm_handle,
-                                               uint32_t* shm_size) {
-  gpu::Buffer buffer = GetCommandBuffer()->GetTransferBuffer(id);
-  return ShmToHandle(buffer.shared_memory, buffer.size, shm_handle, shm_size);
-}
-
-PP_Bool PPB_Graphics3D_Impl::Flush(int32_t put_offset) {
-  GetCommandBuffer()->Flush(put_offset);
-  return PP_TRUE;
-}
-
-PP_Graphics3DTrustedState PPB_Graphics3D_Impl::FlushSync(int32_t put_offset) {
-  gpu::CommandBuffer::State state = GetCommandBuffer()->GetState();
-  return PPStateFromGPUState(
-      GetCommandBuffer()->FlushSync(put_offset, state.get_offset));
-}
-
-PP_Graphics3DTrustedState PPB_Graphics3D_Impl::FlushSyncFast(
-    int32_t put_offset,
-    int32_t last_known_get) {
-  return PPStateFromGPUState(
-      GetCommandBuffer()->FlushSync(put_offset, last_known_get));
-}
-
-bool PPB_Graphics3D_Impl::BindToInstance(bool bind) {
-  bound_to_instance_ = bind;
-  return true;
-}
-
-unsigned int PPB_Graphics3D_Impl::GetBackingTextureId() {
-  return platform_context_->GetBackingTextureId();
-}
-
-void PPB_Graphics3D_Impl::ViewInitiatedPaint() {
-}
-
-void PPB_Graphics3D_Impl::ViewFlushedPaint() {
-  commit_pending_ = false;
-
-  if (HasPendingSwap())
-    SwapBuffersACK(PP_OK);
-}
-
-gpu::CommandBuffer* PPB_Graphics3D_Impl::GetCommandBuffer() {
-  return platform_context_->GetCommandBuffer();
-}
-
-int32 PPB_Graphics3D_Impl::DoSwapBuffers() {
-  // We do not have a GLES2 implementation when using an OOP proxy.
-  // The plugin-side proxy is responsible for adding the SwapBuffers command
-  // to the command buffer in that case.
-  if (gles2_impl())
-    gles2_impl()->SwapBuffers();
-
-  return PP_OK_COMPLETIONPENDING;
+int32_t PPB_Graphics3D_Impl::SwapBuffers(PP_CompletionCallback callback) {
+  // TODO(alokp): Implement me.
+  return PP_ERROR_FAILED;
 }
 
 bool PPB_Graphics3D_Impl::Init(PP_Config3D_Dev config,
                                PP_Resource share_context,
                                const int32_t* attrib_list) {
-  if (!InitRaw(config, share_context, attrib_list))
-    return false;
-
-  gpu::CommandBuffer* command_buffer = GetCommandBuffer();
-  if (!command_buffer->Initialize(kCommandBufferSize))
-    return false;
-
-  return CreateGLES2Impl(kCommandBufferSize, kTransferBufferSize);
-}
-
-bool PPB_Graphics3D_Impl::InitRaw(PP_Config3D_Dev config,
-                                  PP_Resource share_context,
-                                  const int32_t* attrib_list) {
-  // TODO(alokp): Support shared context.
-  DCHECK_EQ(0, share_context);
-  if (share_context != 0)
-    return 0;
-
-  platform_context_.reset(instance()->CreateContext3D());
-  if (!platform_context_.get())
-    return false;
-
-  if (!platform_context_->Init())
-    return false;
-
-  platform_context_->SetContextLostCallback(
-      callback_factory_.NewCallback(&PPB_Graphics3D_Impl::OnContextLost));
-  platform_context_->SetSwapBuffersCallback(
-      callback_factory_.NewCallback(&PPB_Graphics3D_Impl::OnSwapBuffers));
-  return true;
-}
-
-void PPB_Graphics3D_Impl::OnSwapBuffers() {
-  if (bound_to_instance_) {
-    // If we are bound to the instance, we need to ask the compositor
-    // to commit our backing texture so that the graphics appears on the page.
-    // When the backing texture will be committed we get notified via
-    // ViewFlushedPaint().
-    instance()->CommitBackingTexture();
-    commit_pending_ = true;
-  } else if (HasPendingSwap()) {
-    // If we're off-screen, no need to trigger and wait for compositing.
-    // Just send the swap-buffers ACK to the plugin immediately.
-    commit_pending_ = false;
-    SwapBuffersACK(PP_OK);
-  }
-}
-
-void PPB_Graphics3D_Impl::OnContextLost() {
-  if (bound_to_instance_)
-    instance()->BindGraphics(instance()->pp_instance(), 0);
-
-  // Send context lost to plugin. This may have been caused by a PPAPI call, so
-  // avoid re-entering.
-  MessageLoop::current()->PostTask(FROM_HERE, NewRunnableMethod(
-      this, &PPB_Graphics3D_Impl::SendContextLost));
-}
-
-void PPB_Graphics3D_Impl::SendContextLost() {
-  // By the time we run this, the instance may have been deleted, or in the
-  // process of being deleted. Even in the latter case, we don't want to send a
-  // callback after DidDestroy.
-  if (!instance() || !instance()->container())
-    return;
-
-  const PPP_Graphics3D_Dev* ppp_graphics_3d =
-      static_cast<const PPP_Graphics3D_Dev*>(
-          instance()->module()->GetPluginInterface(
-              PPP_GRAPHICS_3D_DEV_INTERFACE));
-  if (ppp_graphics_3d)
-    ppp_graphics_3d->Graphics3DContextLost(instance()->pp_instance());
+  // TODO(alokp): Implement me.
+  return false;
 }
 
 }  // namespace ppapi
 }  // namespace webkit