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// Copyright (c) 2011 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 "ppapi/proxy/resource_creation_proxy.h"
#include "ppapi/c/pp_errors.h"
#include "ppapi/c/pp_size.h"
#include "ppapi/proxy/host_resource.h"
#include "ppapi/proxy/interface_id.h"
#include "ppapi/proxy/plugin_dispatcher.h"
#include "ppapi/proxy/plugin_resource_tracker.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "ppapi/proxy/ppb_graphics_2d_proxy.h"
#include "ppapi/proxy/ppb_image_data_proxy.h"
#include "ppapi/c/trusted/ppb_image_data_trusted.h"
#include "ppapi/shared_impl/function_group_base.h"
#include "ppapi/thunk/enter.h"
#include "ppapi/thunk/ppb_image_data_api.h"
using ::ppapi::thunk::ResourceCreationAPI;
namespace pp {
namespace proxy {
ResourceCreationProxy::ResourceCreationProxy(Dispatcher* dispatcher)
: dispatcher_(dispatcher) {
}
ResourceCreationProxy::~ResourceCreationProxy() {
}
::ppapi::thunk::ResourceCreationAPI*
ResourceCreationProxy::AsResourceCreation() {
return this;
}
PP_Resource ResourceCreationProxy::CreateGraphics2D(PP_Instance pp_instance,
const PP_Size& size,
PP_Bool is_always_opaque) {
PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(pp_instance);
if (!dispatcher)
return PP_ERROR_BADARGUMENT;
HostResource result;
dispatcher->Send(new PpapiHostMsg_ResourceCreation_Graphics2D(
INTERFACE_ID_RESOURCE_CREATION, pp_instance, size, is_always_opaque,
&result));
if (result.is_null())
return 0;
linked_ptr<Graphics2D> graphics_2d(new Graphics2D(result, size,
is_always_opaque));
return PluginResourceTracker::GetInstance()->AddResource(graphics_2d);
}
PP_Resource ResourceCreationProxy::CreateImageData(PP_Instance instance,
PP_ImageDataFormat format,
const PP_Size& size,
PP_Bool init_to_zero) {
PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance);
if (!dispatcher)
return 0;
HostResource result;
std::string image_data_desc;
ImageHandle image_handle = ImageData::NullHandle;
dispatcher->Send(new PpapiHostMsg_ResourceCreation_ImageData(
INTERFACE_ID_RESOURCE_CREATION, instance, format, size, init_to_zero,
&result, &image_data_desc, &image_handle));
if (result.is_null() || image_data_desc.size() != sizeof(PP_ImageDataDesc))
return 0;
// We serialize the PP_ImageDataDesc just by copying to a string.
PP_ImageDataDesc desc;
memcpy(&desc, image_data_desc.data(), sizeof(PP_ImageDataDesc));
linked_ptr<ImageData> object(new ImageData(result, desc, image_handle));
return PluginResourceTracker::GetInstance()->AddResource(object);
}
bool ResourceCreationProxy::Send(IPC::Message* msg) {
return dispatcher_->Send(msg);
}
bool ResourceCreationProxy::OnMessageReceived(const IPC::Message& msg) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(ResourceCreationProxy, msg)
IPC_MESSAGE_HANDLER(PpapiHostMsg_ResourceCreation_Graphics2D,
OnMsgCreateGraphics2D)
IPC_MESSAGE_HANDLER(PpapiHostMsg_ResourceCreation_ImageData,
OnMsgCreateImageData)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void ResourceCreationProxy::OnMsgCreateGraphics2D(PP_Instance instance,
const PP_Size& size,
PP_Bool is_always_opaque,
HostResource* result) {
ppapi::thunk::EnterFunction<ResourceCreationAPI> enter(instance, false);
if (enter.succeeded()) {
result->SetHostResource(instance, enter.functions()->CreateGraphics2D(
instance, size, is_always_opaque));
}
}
void ResourceCreationProxy::OnMsgCreateImageData(
PP_Instance instance,
int32_t format,
const PP_Size& size,
PP_Bool init_to_zero,
HostResource* result,
std::string* image_data_desc,
ImageHandle* result_image_handle) {
*result_image_handle = ImageData::NullHandle;
ppapi::thunk::EnterFunction<ResourceCreationAPI> enter(instance, false);
if (enter.failed())
return;
PP_Resource resource = enter.functions()->CreateImageData(
instance, static_cast<PP_ImageDataFormat>(format), size, init_to_zero);
if (!resource)
return;
result->SetHostResource(instance, resource);
// Get the description, it's just serialized as a string.
ppapi::thunk::EnterResource<ppapi::thunk::PPB_ImageData_API>
enter_resource(resource, false);
PP_ImageDataDesc desc;
if (enter_resource.object()->Describe(&desc)) {
image_data_desc->resize(sizeof(PP_ImageDataDesc));
memcpy(&(*image_data_desc)[0], &desc, sizeof(PP_ImageDataDesc));
}
// Get the shared memory handle.
const PPB_ImageDataTrusted* trusted =
reinterpret_cast<const PPB_ImageDataTrusted*>(
dispatcher_->GetLocalInterface(PPB_IMAGEDATA_TRUSTED_INTERFACE));
uint32_t byte_count = 0;
if (trusted) {
int32_t handle;
if (trusted->GetSharedMemory(resource, &handle, &byte_count) == PP_OK) {
#if defined(OS_WIN)
pp::proxy::ImageHandle ih = ImageData::HandleFromInt(handle);
*result_image_handle = dispatcher_->ShareHandleWithRemote(ih, false);
#else
*result_image_handle = ImageData::HandleFromInt(handle);
#endif
}
}
}
} // namespace proxy
} // namespace pp
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