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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/chromotocol.pb.h"
namespace remoting {
using media::DataBuffer;
void EncoderVerbatim::Encode(const DirtyRects& dirty_rects,
const uint8* const* input_data,
const int* strides,
bool key_frame,
DataAvailableCallback* data_available_callback) {
int num_rects = dirty_rects.size();
for (int i = 0; i < num_rects; i++) {
scoped_refptr<DataBuffer> data;
gfx::Rect dirty_rect = dirty_rects[i];
PixelFormat pixel_format;
UpdateStreamEncoding encoding;
scoped_ptr<UpdateStreamPacketHeader> header(new UpdateStreamPacketHeader);
if (EncodeRect(dirty_rect,
input_data,
strides,
header.get(),
&data)) {
EncodingState state = EncodingInProgress;
if (i == 0) {
state |= EncodingStarting;
} else if (i == num_rects - 1) {
state |= EncodingEnded;
}
data_available_callback->Run(header.release(),
data,
state);
}
}
delete data_available_callback;
}
void EncoderVerbatim::SetSize(int width, int height) {
width_ = width;
height_ = height;
}
void EncoderVerbatim::SetPixelFormat(PixelFormat pixel_format) {
// These are sorted so that the most common formats are checked first.
// TODO(hclam): Extract this into a util function.
if (pixel_format == PixelFormatRgb24) {
bytes_per_pixel_ = 3;
} else if (pixel_format == PixelFormatRgb565) {
bytes_per_pixel_ = 2;
} else if (pixel_format == PixelFormatRgb32) {
bytes_per_pixel_ = 4;
} else if (pixel_format != PixelFormatAscii) {
bytes_per_pixel_ = 1;
} else {
NOTREACHED() << "Pixel format not supported";
}
pixel_format_ = pixel_format;
}
bool EncoderVerbatim::EncodeRect(const gfx::Rect& dirty,
const uint8* const* input_data,
const int* strides,
UpdateStreamPacketHeader *header,
scoped_refptr<DataBuffer>* output_data) {
const int kPlanes = 3;
// Calculate the size of output.
int output_size = 0;
for (int i = 0; i < kPlanes; ++i) {
// TODO(hclam): Handle YUV since the height would be different.
output_size += strides[i] * height_;
}
header->set_x(dirty.x());
header->set_y(dirty.y());
header->set_width(dirty.width());
header->set_height(dirty.height());
header->set_encoding(EncodingNone);
header->set_pixel_format(pixel_format_);
*output_data = new DataBuffer(new uint8[output_size], output_size);
uint8* out = (*output_data)->GetWritableData();
for (int i = 0; i < kPlanes; ++i) {
const uint8* in = input_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 < height_; ++j) {
int row_size = width_ * bytes_per_pixel_;
DCHECK_LE(row_size, strides[i]);
memcpy(out, in, row_size);
in += strides[i];
out += row_size;
}
}
return true;
}
} // namespace remoting
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