Added ppapi::Context3D interface. The API has already been reviewed. I am add...

webkit/plugins/ppapi/ppb_graphics_3d_impl.cc

 // 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 "gpu/command_buffer/common/command_buffer.h"
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/c/pp_var.h"
 #include "ppapi/c/dev/ppb_graphics_3d_dev.h"
-#include "webkit/plugins/ppapi/common.h"
-#include "webkit/plugins/ppapi/ppapi_plugin_instance.h"
 
 namespace webkit {
 namespace ppapi {
 
 namespace {
 
-// Size of the transfer buffer.
-enum { kTransferBufferSize = 512 * 1024 };
-
-PP_Bool IsGraphics3D(PP_Resource resource) {
-  return BoolToPPBool(!!Resource::GetAs<PPB_Graphics3D_Impl>(resource));
+int32_t GetConfigs(PP_Config3D_Dev* configs,
+                   int32_t config_size,
+                   int32_t* num_config) {
+  // TODO(alokp): Implement me.
+  return PP_ERROR_FAILED;
 }
 
-PP_Bool GetConfigs(int32_t* configs, int32_t config_size, int32_t* num_config) {
-  // TODO(neb): Implement me!
-  return PP_FALSE;
+int32_t GetConfigAttribs(PP_Config3D_Dev config, int32_t* attrib_list) {
+  // TODO(alokp): Implement me.
+  return PP_ERROR_FAILED;
 }
 
-PP_Bool ChooseConfig(const int32_t* attrib_list, int32_t* configs,
-                     int32_t config_size, int32_t* num_config) {
-  // TODO(neb): Implement me!
-  return PP_FALSE;
-}
-
-PP_Bool GetConfigAttrib(int32_t config, int32_t attribute, int32_t* value) {
-  // TODO(neb): Implement me!
-  return PP_FALSE;
-}
-
-const char* QueryString(int32_t name) {
-  switch (name) {
-    case EGL_CLIENT_APIS:
-      return "OpenGL_ES";
-    case EGL_EXTENSIONS:
-      return "";
-    case EGL_VENDOR:
-      return "Google";
-    case EGL_VERSION:
-      return "1.0 Google";
-    default:
-      return NULL;
-  }
-}
-
-PP_Resource CreateContext(PP_Instance instance_id, int32_t config,
-                          int32_t share_context,
-                          const int32_t* attrib_list) {
-  DCHECK_EQ(0, share_context);
-
-  PluginInstance* instance = ResourceTracker::Get()->GetInstance(instance_id);
-  if (!instance) {
-    return 0;
-  }
-
-  scoped_refptr<PPB_Graphics3D_Impl> context(
-      new PPB_Graphics3D_Impl(instance->module()));
-  if (!context->Init(instance_id, config, attrib_list)) {
-    return 0;
-  }
-
-  return context->GetReference();
-}
-
-void* GetProcAddress(const char* name) {
-  // TODO(neb): Implement me!
-  return NULL;
-}
-
-PP_Bool SwapBuffers(PP_Resource graphics3d) {
-  scoped_refptr<PPB_Graphics3D_Impl> context(
-      Resource::GetAs<PPB_Graphics3D_Impl>(graphics3d));
-  return BoolToPPBool(context && context->SwapBuffers());
-}
-
-uint32_t GetError() {
-  // TODO(alokp): Fix this.
-  return 0;
+PP_Var GetString(int32_t name) {
+  // TODO(alokp): Implement me.
+  return PP_MakeUndefined();
 }
 
 const PPB_Graphics3D_Dev ppb_graphics3d = {
-  &IsGraphics3D,
   &GetConfigs,
-  &ChooseConfig,
-  &GetConfigAttrib,
-  &QueryString,
-  &CreateContext,
-  &GetProcAddress,
-  &SwapBuffers,
-  &GetError
+  &GetConfigAttribs,
+  &GetString
 };
 
 }  // namespace
 
-PPB_Graphics3D_Impl::PPB_Graphics3D_Impl(PluginModule* module)
-  : Resource(module),
-    bound_instance_(NULL) {
-}
-
 const PPB_Graphics3D_Dev* PPB_Graphics3D_Impl::GetInterface() {
   return &ppb_graphics3d;
 }
 
-PPB_Graphics3D_Impl::~PPB_Graphics3D_Impl() {
-  Destroy();
-}
-
-PPB_Graphics3D_Impl* PPB_Graphics3D_Impl::AsPPB_Graphics3D_Impl() {
-  return this;
-}
-
-bool PPB_Graphics3D_Impl::Init(PP_Instance instance_id, int32_t config,
-                               const int32_t* attrib_list) {
-  PluginInstance* instance = ResourceTracker::Get()->GetInstance(instance_id);
-  if (!instance) {
-    return false;
-  }
-
-  // Create and initialize the objects required to issue GLES2 calls.
-  platform_context_.reset(instance->delegate()->CreateContext3D());
-  if (!platform_context_.get()) {
-    Destroy();
-    return false;
-  }
-
-  if (!platform_context_->Init()) {
-    Destroy();
-    return false;
-  }
-
-  gles2_implementation_ = platform_context_->GetGLES2Implementation();
-  DCHECK(gles2_implementation_);
-
-  return true;
-}
-
-bool PPB_Graphics3D_Impl::BindToInstance(PluginInstance* new_instance) {
-  if (bound_instance_ == new_instance)
-    return true;  // Rebinding the same device, nothing to do.
-  if (bound_instance_ && new_instance)
-    return false;  // Can't change a bound device.
-
-  if (new_instance) {
-    // Resize the backing texture to the size of the instance when it is bound.
-    platform_context_->ResizeBackingTexture(new_instance->position().size());
-
-    // This is a temporary hack. The SwapBuffers is issued to force the resize
-    // to take place before any subsequent rendering. This might lead to a
-    // partially rendered frame being displayed. It is also not thread safe
-    // since the SwapBuffers is written to the command buffer and that command
-    // buffer might be written to by another thread.
-    // TODO(apatrick): Figure out the semantics of binding and resizing.
-    platform_context_->SwapBuffers();
-  }
-
-  bound_instance_ = new_instance;
-  return true;
-}
-
-bool PPB_Graphics3D_Impl::SwapBuffers() {
-  if (!platform_context_.get())
-    return false;
-
-  return platform_context_->SwapBuffers();
-}
-
-unsigned PPB_Graphics3D_Impl::GetError() {
-  if (!platform_context_.get())
-    return 0;
-
-  return platform_context_->GetError();
-}
-
-void PPB_Graphics3D_Impl::ResizeBackingTexture(const gfx::Size& size) {
-  if (!platform_context_.get())
-    return;
-
-  platform_context_->ResizeBackingTexture(size);
-}
-
-void PPB_Graphics3D_Impl::SetSwapBuffersCallback(Callback0::Type* callback) {
-  if (!platform_context_.get())
-    return;
-
-  platform_context_->SetSwapBuffersCallback(callback);
-}
-
-unsigned PPB_Graphics3D_Impl::GetBackingTextureId() {
-  if (!platform_context_.get())
-    return 0;
-
-  return platform_context_->GetBackingTextureId();
-}
-
-void PPB_Graphics3D_Impl::Destroy() {
-  gles2_implementation_ = NULL;
-  platform_context_.reset();
-}
-
 }  // namespace ppapi
 }  // namespace webkit