remoting/host: Rename Capturer to VideoFrameCapturer.

remoting/host/capturer_fake.cc

-// Copyright (c) 2012 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/capturer_fake.h"
-
-#include "remoting/base/capture_data.h"
-
-namespace remoting {
-
-// CapturerFake generates a white picture of size kWidth x kHeight with a
-// rectangle of size kBoxWidth x kBoxHeight. The rectangle moves kSpeed pixels
-// per frame along both axes, and bounces off the sides of the screen.
-static const int kWidth = 800;
-static const int kHeight = 600;
-static const int kBoxWidth = 140;
-static const int kBoxHeight = 140;
-static const int kSpeed = 20;
-
-COMPILE_ASSERT(kBoxWidth < kWidth && kBoxHeight < kHeight, bad_box_size);
-COMPILE_ASSERT((kBoxWidth % kSpeed == 0) && (kWidth % kSpeed == 0) &&
-               (kBoxHeight % kSpeed == 0) && (kHeight % kSpeed == 0),
-               sizes_must_be_multiple_of_kSpeed);
-
-static const int kBytesPerPixel = 4;  // 32 bit RGB is 4 bytes per pixel.
-
-CapturerFake::CapturerFake()
-    : bytes_per_row_(0),
-      box_pos_x_(0),
-      box_pos_y_(0),
-      box_speed_x_(kSpeed),
-      box_speed_y_(kSpeed),
-      current_buffer_(0),
-      pixel_format_(media::VideoFrame::RGB32) {
-  ScreenConfigurationChanged();
-}
-
-CapturerFake::~CapturerFake() {
-}
-
-void CapturerFake::Start(
-    const CursorShapeChangedCallback& callback) {
-}
-
-void CapturerFake::Stop() {
-}
-
-void CapturerFake::ScreenConfigurationChanged() {
-  size_ = SkISize::Make(kWidth, kHeight);
-  bytes_per_row_ = size_.width() * kBytesPerPixel;
-  pixel_format_ = media::VideoFrame::RGB32;
-
-  // Create memory for the buffers.
-  int buffer_size = size_.height() * bytes_per_row_;
-  for (int i = 0; i < kNumBuffers; i++) {
-    buffers_[i].reset(new uint8[buffer_size]);
-  }
-}
-
-media::VideoFrame::Format CapturerFake::pixel_format() const {
-  return pixel_format_;
-}
-
-void CapturerFake::ClearInvalidRegion() {
-  helper.ClearInvalidRegion();
-}
-
-void CapturerFake::InvalidateRegion(const SkRegion& invalid_region) {
-  helper.InvalidateRegion(invalid_region);
-}
-
-void CapturerFake::InvalidateScreen(const SkISize& size) {
-  helper.InvalidateScreen(size);
-}
-
-void CapturerFake::InvalidateFullScreen() {
-  helper.InvalidateFullScreen();
-}
-
-void CapturerFake::CaptureInvalidRegion(
-    const CaptureCompletedCallback& callback) {
-  GenerateImage();
-  InvalidateScreen(size_);
-
-  SkRegion invalid_region;
-  helper.SwapInvalidRegion(&invalid_region);
-
-  DataPlanes planes;
-  planes.data[0] = buffers_[current_buffer_].get();
-  current_buffer_ = (current_buffer_ + 1) % kNumBuffers;
-  planes.strides[0] = bytes_per_row_;
-
-  scoped_refptr<CaptureData> capture_data(new CaptureData(planes,
-                                                          size_,
-                                                          pixel_format_));
-  capture_data->mutable_dirty_region() = invalid_region;
-
-  helper.set_size_most_recent(capture_data->size());
-
-  callback.Run(capture_data);
-}
-
-const SkISize& CapturerFake::size_most_recent() const {
-  return helper.size_most_recent();
-}
-
-void CapturerFake::GenerateImage() {
-  memset(buffers_[current_buffer_].get(), 0xff,
-         size_.width() * size_.height() * kBytesPerPixel);
-
-  uint8* row = buffers_[current_buffer_].get() +
-      (box_pos_y_ * size_.width() + box_pos_x_) * kBytesPerPixel;
-
-  box_pos_x_ += box_speed_x_;
-  if (box_pos_x_ + kBoxWidth >= size_.width() || box_pos_x_ == 0)
-    box_speed_x_ = -box_speed_x_;
-
-  box_pos_y_ += box_speed_y_;
-  if (box_pos_y_ + kBoxHeight >= size_.height() || box_pos_y_ == 0)
-    box_speed_y_ = -box_speed_y_;
-
-  // Draw rectangle with the following colors in its corners:
-  //     cyan....yellow
-  //     ..............
-  //     blue.......red
-  for (int y = 0; y < kBoxHeight; ++y) {
-    for (int x = 0; x < kBoxWidth; ++x) {
-      int r = x * 255 / kBoxWidth;
-      int g = y * 255 / kBoxHeight;
-      int b = 255 - (x * 255 / kBoxWidth);
-      row[x * kBytesPerPixel] = r;
-      row[x * kBytesPerPixel+1] = g;
-      row[x * kBytesPerPixel+2] = b;
-      row[x * kBytesPerPixel+3] = 0xff;
-    }
-    row += bytes_per_row_;
-  }
-}
-
-}  // namespace remoting