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// 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 "ppapi/proxy/ppb_image_data_proxy.h"
#include <string.h> // For memcpy
#include <vector>
#include "base/logging.h"
#include "build/build_config.h"
#include "ppapi/c/pp_completion_callback.h"
#include "ppapi/c/pp_errors.h"
#include "ppapi/c/pp_resource.h"
#include "ppapi/c/trusted/ppb_image_data_trusted.h"
#include "ppapi/proxy/image_data.h"
#include "ppapi/proxy/plugin_dispatcher.h"
#include "ppapi/proxy/ppapi_messages.h"
namespace pp {
namespace proxy {
namespace {
PP_ImageDataFormat GetNativeImageDataFormat() {
int32 format = 0;
PluginDispatcher::Get()->Send(
new PpapiHostMsg_PPBImageData_GetNativeImageDataFormat(
INTERFACE_ID_PPB_IMAGE_DATA, &format));
return static_cast<PP_ImageDataFormat>(format);
}
PP_Bool IsImageDataFormatSupported(PP_ImageDataFormat format) {
PP_Bool supported = PP_FALSE;
PluginDispatcher::Get()->Send(
new PpapiHostMsg_PPBImageData_IsImageDataFormatSupported(
INTERFACE_ID_PPB_IMAGE_DATA, static_cast<int32_t>(format),
&supported));
return supported;
}
PP_Resource Create(PP_Module module_id,
PP_ImageDataFormat format,
const PP_Size* size,
PP_Bool init_to_zero) {
PP_Resource result = 0;
std::string image_data_desc;
ImageHandle image_handle = ImageData::NullHandle;
PluginDispatcher::Get()->Send(
new PpapiHostMsg_PPBImageData_Create(
INTERFACE_ID_PPB_IMAGE_DATA, module_id, format, *size, init_to_zero,
&result, &image_data_desc, &image_handle));
if (result && image_data_desc.size() == sizeof(PP_ImageDataDesc)) {
// 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(desc, image_handle));
PluginDispatcher::Get()->plugin_resource_tracker()->AddResource(
result, object);
}
return result;
}
PP_Bool IsImageData(PP_Resource resource) {
ImageData* object = PluginResource::GetAs<ImageData>(resource);
return BoolToPPBool(!!object);
}
PP_Bool Describe(PP_Resource resource, PP_ImageDataDesc* desc) {
ImageData* object = PluginResource::GetAs<ImageData>(resource);
if (!object)
return PP_FALSE;
memcpy(desc, &object->desc(), sizeof(PP_ImageDataDesc));
return PP_TRUE;
}
void* Map(PP_Resource resource) {
ImageData* object = PluginResource::GetAs<ImageData>(resource);
if (!object)
return NULL;
return object->Map();
}
void Unmap(PP_Resource resource) {
ImageData* object = PluginResource::GetAs<ImageData>(resource);
if (object)
object->Unmap();
}
const PPB_ImageData ppb_imagedata = {
&GetNativeImageDataFormat,
&IsImageDataFormatSupported,
&Create,
&IsImageData,
&Describe,
&Map,
&Unmap,
};
} // namespace
PPB_ImageData_Proxy::PPB_ImageData_Proxy(Dispatcher* dispatcher,
const void* target_interface)
: InterfaceProxy(dispatcher, target_interface) {
}
PPB_ImageData_Proxy::~PPB_ImageData_Proxy() {
}
const void* PPB_ImageData_Proxy::GetSourceInterface() const {
return &ppb_imagedata;
}
InterfaceID PPB_ImageData_Proxy::GetInterfaceId() const {
return INTERFACE_ID_PPB_IMAGE_DATA;
}
void PPB_ImageData_Proxy::OnMessageReceived(const IPC::Message& msg) {
IPC_BEGIN_MESSAGE_MAP(PPB_ImageData_Proxy, msg)
IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBImageData_GetNativeImageDataFormat,
OnMsgGetNativeImageDataFormat)
IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBImageData_IsImageDataFormatSupported,
OnMsgIsImageDataFormatSupported)
IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBImageData_Create, OnMsgCreate)
IPC_END_MESSAGE_MAP()
// FIXME(brettw) handle bad messages!
}
void PPB_ImageData_Proxy::OnMsgGetNativeImageDataFormat(int32* result) {
*result = ppb_image_data_target()->GetNativeImageDataFormat();
}
void PPB_ImageData_Proxy::OnMsgIsImageDataFormatSupported(int32 format,
PP_Bool* result) {
*result = ppb_image_data_target()->IsImageDataFormatSupported(
static_cast<PP_ImageDataFormat>(format));
}
void PPB_ImageData_Proxy::OnMsgCreate(PP_Module module,
int32_t format,
const PP_Size& size,
PP_Bool init_to_zero,
PP_Resource* result,
std::string* image_data_desc,
ImageHandle* result_image_handle) {
*result = ppb_image_data_target()->Create(
module, static_cast<PP_ImageDataFormat>(format), &size, init_to_zero);
*result_image_handle = ImageData::NullHandle;
if (*result) {
// The ImageDesc is just serialized as a string.
PP_ImageDataDesc desc;
if (ppb_image_data_target()->Describe(*result, &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(*result, &handle, &byte_count) == PP_OK)
*result_image_handle = ImageData::HandleFromInt(handle);
}
}
}
} // namespace proxy
} // namespace pp
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