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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 "remoting/host/encoder_verbatim.h"
#include "gfx/rect.h"
#include "media/base/data_buffer.h"
#include "remoting/base/protocol_util.h"
#include "remoting/base/protocol/chromotocol.pb.h"
namespace remoting {
using media::DataBuffer;
void EncoderVerbatim::Encode(scoped_refptr<Capturer::CaptureData> capture_data,
bool key_frame,
DataAvailableCallback* data_available_callback) {
int num_rects = capture_data->dirty_rects().size();
for (int i = 0; i < num_rects; i++) {
const gfx::Rect& dirty_rect = capture_data->dirty_rects()[i];
HostMessage* msg = new HostMessage();
UpdateStreamPacketMessage* packet = msg->mutable_update_stream_packet();
if (EncodeRect(dirty_rect, capture_data, packet)) {
// Prepare the end rect content.
packet->mutable_end_rect();
EncodingState state = EncodingInProgress;
if (i == 0) {
state |= EncodingStarting;
}
if (i == num_rects - 1) {
state |= EncodingEnded;
}
data_available_callback->Run(msg, state);
}
}
delete data_available_callback;
}
bool EncoderVerbatim::EncodeRect(
const gfx::Rect& dirty,
const scoped_refptr<Capturer::CaptureData>& capture_data,
UpdateStreamPacketMessage* packet) {
// Prepare the begin rect content.
packet->mutable_begin_rect()->set_x(dirty.x());
packet->mutable_begin_rect()->set_y(dirty.y());
packet->mutable_begin_rect()->set_width(dirty.width());
packet->mutable_begin_rect()->set_height(dirty.height());
packet->mutable_begin_rect()->set_encoding(EncodingNone);
packet->mutable_begin_rect()->set_pixel_format(capture_data->pixel_format());
// Calculate the size of output.
int bytes_per_pixel = GetBytesPerPixel(capture_data->pixel_format());
int row_size = bytes_per_pixel * dirty.width();
int output_size = 0;
for (int i = 0; i < Capturer::DataPlanes::kPlaneCount; ++i) {
// TODO(hclam): Handle YUV since the height would be different.
const uint8* in = capture_data->data_planes().data[i];
if (!in) continue;
output_size += row_size * dirty.height();
}
// Resize the output data buffer.
packet->mutable_rect_data()->mutable_data()->resize(output_size);
uint8* out = reinterpret_cast<uint8*>(
&((*packet->mutable_rect_data()->mutable_data())[0]));
for (int i = 0; i < Capturer::DataPlanes::kPlaneCount; ++i) {
const uint8* in = capture_data->data_planes().data[i];
// Skip over planes that don't have data.
if (!in) continue;
// TODO(hclam): Handle YUV since the height would be different.
for (int j = 0; j < dirty.height(); ++j) {
DCHECK_LE(row_size, capture_data->data_planes().strides[i]);
memcpy(out, in, row_size);
in += capture_data->data_planes().strides[i];
out += row_size;
}
}
return true;
}
} // namespace remoting
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