Remove screen capturers from media/video/capture/screen.

media/video/capture/screen/screen_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 "media/video/capture/screen/screen_capturer_fake.h"
-
-#include "base/logging.h"
-#include "base/time.h"
-#include "third_party/webrtc/modules/desktop_capture/desktop_frame.h"
-
-namespace media {
-
-// ScreenCapturerFake 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 = ScreenCapturerFake::kWidth;
-static const int kHeight = ScreenCapturerFake::kHeight;
-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);
-
-ScreenCapturerFake::ScreenCapturerFake()
-    : callback_(NULL),
-      mouse_shape_observer_(NULL),
-      bytes_per_row_(0),
-      box_pos_x_(0),
-      box_pos_y_(0),
-      box_speed_x_(kSpeed),
-      box_speed_y_(kSpeed) {
-  ScreenConfigurationChanged();
-}
-
-ScreenCapturerFake::~ScreenCapturerFake() {
-}
-
-void ScreenCapturerFake::Start(Callback* callback) {
-  DCHECK(!callback_);
-  DCHECK(callback);
-  callback_ = callback;
-}
-
-void ScreenCapturerFake::Capture(const webrtc::DesktopRegion& region) {
-  base::Time capture_start_time = base::Time::Now();
-
-  queue_.MoveToNextFrame();
-
-  if (!queue_.current_frame()) {
-    int buffer_size = size_.height() * bytes_per_row_;
-    webrtc::SharedMemory* shared_memory =
-        callback_->CreateSharedMemory(buffer_size);
-    scoped_ptr<webrtc::DesktopFrame> frame;
-    webrtc::DesktopSize frame_size(size_.width(), size_.height());
-    if (shared_memory) {
-      frame.reset(new webrtc::SharedMemoryDesktopFrame(
-          frame_size, bytes_per_row_, shared_memory));
-    } else {
-      frame.reset(new webrtc::BasicDesktopFrame(frame_size));
-    }
-    queue_.ReplaceCurrentFrame(frame.Pass());
-  }
-
-  DCHECK(queue_.current_frame());
-  GenerateImage();
-
-  queue_.current_frame()->mutable_updated_region()->SetRect(
-      webrtc::DesktopRect::MakeSize(size_));
-  queue_.current_frame()->set_capture_time_ms(
-      (base::Time::Now() - capture_start_time).InMillisecondsRoundedUp());
-
-  callback_->OnCaptureCompleted(queue_.current_frame()->Share());
-}
-
-void ScreenCapturerFake::SetMouseShapeObserver(
-      MouseShapeObserver* mouse_shape_observer) {
-  DCHECK(!mouse_shape_observer_);
-  DCHECK(mouse_shape_observer);
-  mouse_shape_observer_ = mouse_shape_observer;
-}
-
-void ScreenCapturerFake::GenerateImage() {
-  webrtc::DesktopFrame* frame = queue_.current_frame();
-
-  const int kBytesPerPixel = webrtc::DesktopFrame::kBytesPerPixel;
-
-  memset(frame->data(), 0xff,
-         size_.width() * size_.height() * kBytesPerPixel);
-
-  uint8* row = frame->data() +
-      (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_;
-  }
-}
-
-void ScreenCapturerFake::ScreenConfigurationChanged() {
-  size_.set(kWidth, kHeight);
-  queue_.Reset();
-  bytes_per_row_ = size_.width() * webrtc::DesktopFrame::kBytesPerPixel;
-}
-
-}  // namespace media