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Unified Diff: ppapi/proxy/ppb_buffer_proxy.cc

Issue 4752008: Add proxies for some of the PDF & Flash functionality. There are still a few... (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: '' Created 10 years, 1 month ago
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Index: ppapi/proxy/ppb_buffer_proxy.cc
===================================================================
--- ppapi/proxy/ppb_buffer_proxy.cc (revision 0)
+++ ppapi/proxy/ppb_buffer_proxy.cc (revision 0)
@@ -0,0 +1,151 @@
+// 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_buffer_proxy.h"
+
+#include <vector>
+
+#include "base/logging.h"
+#include "build/build_config.h"
+#include "ppapi/c/pp_completion_callback.h"
+#include "ppapi/c/pp_resource.h"
+#include "ppapi/c/dev/ppb_buffer_dev.h"
+#include "ppapi/proxy/plugin_dispatcher.h"
+#include "ppapi/proxy/plugin_resource.h"
+#include "ppapi/proxy/ppapi_messages.h"
+
+namespace pp {
+namespace proxy {
+
+class Buffer : public PluginResource {
+ public:
+ Buffer(uint64_t memory_handle, int32_t size);
+ virtual ~Buffer();
+
+ // Resource overrides.
+ virtual Buffer* AsBuffer() { return this; }
+
+ int32_t size() const { return size_; }
+
+ void* Map();
+ void Unmap();
+
+ private:
+ uint64_t memory_handle_;
+ int32_t size_;
+
+ void* mapped_data_;
+
+ DISALLOW_COPY_AND_ASSIGN(Buffer);
+};
+
+Buffer::Buffer(uint64_t memory_handle, int32_t size)
+ : memory_handle_(memory_handle),
+ size_(size),
+ mapped_data_(NULL) {
+}
+
+Buffer::~Buffer() {
+ Unmap();
+}
+
+void* Buffer::Map() {
+ // TODO(brettw) implement this.
+ return mapped_data_;
+}
+
+void Buffer::Unmap() {
+ // TODO(brettw) implement this.
+}
+
+namespace {
+
+PP_Resource Create(PP_Module module_id, int32_t size) {
+ PP_Resource result = 0;
+ uint64_t shm_handle = -1;
+ PluginDispatcher::Get()->Send(
+ new PpapiHostMsg_PPBBuffer_Create(
+ INTERFACE_ID_PPB_BUFFER, module_id, size,
+ &result, &shm_handle));
+ if (!result)
+ return 0;
+
+ linked_ptr<Buffer> object(new Buffer(shm_handle, size));
+ PluginDispatcher::Get()->plugin_resource_tracker()->AddResource(
+ result, object);
+ return result;
+}
+
+PP_Bool IsBuffer(PP_Resource resource) {
+ Buffer* object = PluginResource::GetAs<Buffer>(resource);
+ return BoolToPPBool(!!object);
+}
+
+PP_Bool Describe(PP_Resource resource, int32_t* size_in_bytes) {
+ Buffer* object = PluginResource::GetAs<Buffer>(resource);
+ if (!object) {
+ *size_in_bytes = 0;
+ return PP_FALSE;
+ }
+ *size_in_bytes = object->size();
+ return PP_TRUE;
+}
+
+void* Map(PP_Resource resource) {
+ Buffer* object = PluginResource::GetAs<Buffer>(resource);
+ if (!object)
+ return NULL;
+ return object->Map();
+}
+
+void Unmap(PP_Resource resource) {
+ Buffer* object = PluginResource::GetAs<Buffer>(resource);
+ if (object)
+ object->Unmap();
+}
+
+const PPB_Buffer_Dev ppb_buffer = {
+ &Create,
+ &IsBuffer,
+ &Describe,
+ &Map,
+ &Unmap,
+};
+
+} // namespace
+
+PPB_Buffer_Proxy::PPB_Buffer_Proxy(Dispatcher* dispatcher,
+ const void* target_interface)
+ : InterfaceProxy(dispatcher, target_interface) {
+}
+
+PPB_Buffer_Proxy::~PPB_Buffer_Proxy() {
+}
+
+const void* PPB_Buffer_Proxy::GetSourceInterface() const {
+ return &ppb_buffer;
+}
+
+InterfaceID PPB_Buffer_Proxy::GetInterfaceId() const {
+ return INTERFACE_ID_PPB_BUFFER;
+}
+
+void PPB_Buffer_Proxy::OnMessageReceived(const IPC::Message& msg) {
+ IPC_BEGIN_MESSAGE_MAP(PPB_Buffer_Proxy, msg)
+ IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBBuffer_Create, OnMsgCreate)
+ IPC_END_MESSAGE_MAP()
+ // TODO(brettw) handle bad messages!
+}
+
+void PPB_Buffer_Proxy::OnMsgCreate(PP_Module module,
+ int32_t size,
+ PP_Resource* result_resource,
+ uint64_t* result_shm_handle) {
+ *result_resource = ppb_buffer_target()->Create(module, size);
+ // TODO(brettw) set the shm handle from a trusted interface.
+ *result_shm_handle = 0;
+}
+
+} // namespace proxy
+} // namespace pp
Property changes on: ppapi/proxy/ppb_buffer_proxy.cc
___________________________________________________________________
Added: svn:eol-style
+ LF
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