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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ppapi/proxy/media_stream_track_resource_base.h"
#include <stddef.h>
#include "base/check_op.h"
#include "ppapi/proxy/ppapi_messages.h"
namespace ppapi {
namespace proxy {
MediaStreamTrackResourceBase::MediaStreamTrackResourceBase(
Connection connection,
PP_Instance instance,
int pending_renderer_id,
const std::string& id)
: PluginResource(connection, instance),
buffer_manager_(this),
id_(id),
has_ended_(false) {
AttachToPendingHost(RENDERER, pending_renderer_id);
}
MediaStreamTrackResourceBase::MediaStreamTrackResourceBase(
Connection connection,
PP_Instance instance)
: PluginResource(connection, instance),
buffer_manager_(this),
has_ended_(false) {
}
MediaStreamTrackResourceBase::~MediaStreamTrackResourceBase() {
}
void MediaStreamTrackResourceBase::SendEnqueueBufferMessageToHost(
int32_t index) {
DCHECK_GE(index, 0);
DCHECK_LT(index, buffer_manager()->number_of_buffers());
Post(RENDERER, PpapiHostMsg_MediaStreamTrack_EnqueueBuffer(index));
}
void MediaStreamTrackResourceBase::OnReplyReceived(
const ResourceMessageReplyParams& params,
const IPC::Message& msg) {
PPAPI_BEGIN_MESSAGE_MAP(MediaStreamTrackResourceBase, msg)
PPAPI_DISPATCH_PLUGIN_RESOURCE_CALL(
PpapiPluginMsg_MediaStreamTrack_InitBuffers, OnPluginMsgInitBuffers)
PPAPI_DISPATCH_PLUGIN_RESOURCE_CALL(
PpapiPluginMsg_MediaStreamTrack_EnqueueBuffer, OnPluginMsgEnqueueBuffer)
PPAPI_DISPATCH_PLUGIN_RESOURCE_CALL(
PpapiPluginMsg_MediaStreamTrack_EnqueueBuffers,
OnPluginMsgEnqueueBuffers)
PPAPI_DISPATCH_PLUGIN_RESOURCE_CALL_UNHANDLED(
PluginResource::OnReplyReceived(params, msg))
PPAPI_END_MESSAGE_MAP()
}
void MediaStreamTrackResourceBase::CloseInternal() {
if (!has_ended_) {
Post(RENDERER, PpapiHostMsg_MediaStreamTrack_Close());
has_ended_ = true;
}
}
void MediaStreamTrackResourceBase::OnPluginMsgInitBuffers(
const ResourceMessageReplyParams& params,
int32_t number_of_buffers,
int32_t buffer_size,
bool readonly) {
// |readonly| specifies only that the region can be mapped readonly, it does
// not specify that the passed region is readonly (and, in fact, it is
// not). In the current shared memory API the mapping of a region always
// matches the permissions on the handle, so the |readonly| parameter is
// ignored.
// TODO(crbug.com/40553989): could the region be shared readonly from the
// host?
base::UnsafeSharedMemoryRegion region;
params.TakeUnsafeSharedMemoryRegionAtIndex(0, ®ion);
buffer_manager_.SetBuffers(number_of_buffers, buffer_size, std::move(region),
false);
}
void MediaStreamTrackResourceBase::OnPluginMsgEnqueueBuffer(
const ResourceMessageReplyParams& params,
int32_t index) {
buffer_manager_.EnqueueBuffer(index);
}
void MediaStreamTrackResourceBase::OnPluginMsgEnqueueBuffers(
const ResourceMessageReplyParams& params,
const std::vector<int32_t>& indices) {
for (size_t i = 0; i < indices.size(); ++i)
buffer_manager_.EnqueueBuffer(indices[i]);
}
} // namespace proxy
} // namespace ppapi
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