Index: content/renderer/pepper/pepper_video_source_host.cc |
diff --git a/content/renderer/pepper/pepper_video_source_host.cc b/content/renderer/pepper/pepper_video_source_host.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..1015ea069c1a484eae06e6787cdb29269efc8767 |
--- /dev/null |
+++ b/content/renderer/pepper/pepper_video_source_host.cc |
@@ -0,0 +1,116 @@ |
+// Copyright (c) 2013 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 "content/renderer/pepper/pepper_video_source_host.h" |
+ |
+#include "base/bind.h" |
+#include "content/public/renderer/renderer_ppapi_host.h" |
+#include "ppapi/c/pp_errors.h" |
+#include "ppapi/host/dispatch_host_message.h" |
+#include "ppapi/host/host_message_context.h" |
+#include "ppapi/host/ppapi_host.h" |
+#include "ppapi/proxy/ppapi_messages.h" |
+#include "ppapi/proxy/ppb_image_data_proxy.h" |
+#include "ppapi/shared_impl/scoped_pp_resource.h" |
+#include "ppapi/thunk/enter.h" |
+#include "ppapi/thunk/ppb_image_data_api.h" |
+#include "skia/ext/platform_canvas.h" |
+#include "webkit/plugins/ppapi/ppb_image_data_impl.h" |
+ |
+using ppapi::host::HostMessageContext; |
+using ppapi::host::ReplyMessageContext; |
+ |
+namespace content { |
+ |
+PepperVideoSourceHost::PepperVideoSourceHost( |
+ RendererPpapiHost* host, |
+ PP_Instance instance, |
+ PP_Resource resource) |
+ : ResourceHost(host->GetPpapiHost(), instance, resource), |
+ renderer_ppapi_host_(host), |
+ weak_factory_(this), |
+ last_timestamp_(0) { |
+} |
+ |
+PepperVideoSourceHost::~PepperVideoSourceHost() { |
+} |
+ |
+int32_t PepperVideoSourceHost::OnResourceMessageReceived( |
+ const IPC::Message& msg, |
+ HostMessageContext* context) { |
+ IPC_BEGIN_MESSAGE_MAP(PepperVideoSourceHost, msg) |
+ PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_VideoSource_Open, |
+ OnHostMsgOpen) |
+ PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(PpapiHostMsg_VideoSource_GetFrame, |
+ OnHostMsgGetFrame) |
+ PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(PpapiHostMsg_VideoSource_Close, |
+ OnHostMsgClose) |
+ IPC_END_MESSAGE_MAP() |
+ return PP_ERROR_FAILED; |
+} |
+ |
+int32_t PepperVideoSourceHost::OnHostMsgOpen(HostMessageContext* context, |
+ const std::string& stream_url) { |
+ GURL gurl(stream_url); |
+ if (!gurl.is_valid()) |
+ return PP_ERROR_BADARGUMENT; |
+ // TODO(ronghuawu) Check that gurl is a valid MediaStream video track URL. |
+ // TODO(ronghuawu) Open a MediaStream video track. |
+ ReplyMessageContext reply_context = context->MakeReplyMessageContext(); |
+ reply_context.params.set_result(PP_OK); |
+ host()->SendReply(reply_context, PpapiPluginMsg_VideoSource_OpenReply()); |
+ return PP_OK_COMPLETIONPENDING; |
+} |
+ |
+int32_t PepperVideoSourceHost::OnHostMsgGetFrame( |
+ HostMessageContext* context) { |
+ ReplyMessageContext reply_context = context->MakeReplyMessageContext(); |
+ // TODO(ronghuawu) Wait until a frame with timestamp > last_timestamp_ is |
+ // available. |
+ // Create an image data resource to hold the frame pixels. |
+ PP_ImageDataDesc desc; |
+ IPC::PlatformFileForTransit image_handle; |
+ uint32_t byte_count; |
+ ppapi::ScopedPPResource resource( |
+ ppapi::ScopedPPResource::PassRef(), |
+ ppapi::proxy::PPB_ImageData_Proxy::CreateImageData( |
+ pp_instance(), |
+ webkit::ppapi::PPB_ImageData_Impl::GetNativeImageDataFormat(), |
+ PP_MakeSize(0, 0), |
+ false /* init_to_zero */, |
+ false /* is_nacl_plugin */, |
+ &desc, &image_handle, &byte_count)); |
+ if (!resource.get()) |
+ return PP_ERROR_FAILED; |
+ |
+ ppapi::thunk::EnterResourceNoLock<ppapi::thunk::PPB_ImageData_API> |
+ enter_resource(resource, false); |
+ if (enter_resource.failed()) |
+ return PP_ERROR_FAILED; |
+ |
+ webkit::ppapi::PPB_ImageData_Impl* image_data = |
+ static_cast<webkit::ppapi::PPB_ImageData_Impl*>(enter_resource.object()); |
+ webkit::ppapi::ImageDataAutoMapper mapper(image_data); |
+ if (!mapper.is_valid()) |
+ return PP_ERROR_FAILED; |
+ |
+ // TODO(ronghuawu) Copy frame pixels to canvas. |
+ |
+ ppapi::HostResource image_data_resource; |
+ image_data_resource.SetHostResource(pp_instance(), resource.get()); |
+ double timestamp = 0; |
+ reply_context.params.set_result(PP_OK); |
+ host()->SendReply( |
+ reply_context, |
+ PpapiPluginMsg_VideoSource_GetFrameReply(image_data_resource, timestamp)); |
+ last_timestamp_ = timestamp; |
+ return PP_OK_COMPLETIONPENDING; |
+} |
+ |
+int32_t PepperVideoSourceHost::OnHostMsgClose(HostMessageContext* context) { |
+ // TODO(ronghuawu) Close the video stream. |
+ return PP_OK; |
+} |
+ |
+} // namespace content |