Move screen capturers from remoting/capturer to media/video/capturer/screen

media/video/capture/screen/screen_capturer_win.cc

Index: media/video/capture/screen/screen_capturer_win.cc
diff --git a/remoting/capturer/video_frame_capturer_win.cc b/media/video/capture/screen/screen_capturer_win.cc
similarity index 81%
rename from remoting/capturer/video_frame_capturer_win.cc
rename to media/video/capture/screen/screen_capturer_win.cc
index 59e978c517ba515c370fb15ac78c7c1511726ce3..bf6bfae6e41b1ea3e8080c6721bfcffedd94ed5a 100644
--- a/remoting/capturer/video_frame_capturer_win.cc
+++ b/media/video/capture/screen/screen_capturer_win.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "remoting/capturer/video_frame_capturer.h"
+#include "media/video/capture/screen/screen_capturer.h"
 
 #include <windows.h>
 
@@ -17,18 +17,18 @@
 #include "base/utf_string_conversions.h"
 #include "base/win/scoped_gdi_object.h"
 #include "base/win/scoped_hdc.h"
-#include "remoting/capturer/capture_data.h"
-#include "remoting/capturer/differ.h"
-#include "remoting/capturer/mouse_cursor_shape.h"
-#include "remoting/capturer/shared_buffer_factory.h"
-#include "remoting/capturer/video_frame.h"
-#include "remoting/capturer/video_frame_capturer_helper.h"
-#include "remoting/capturer/video_frame_queue.h"
-#include "remoting/capturer/win/desktop.h"
-#include "remoting/capturer/win/scoped_thread_desktop.h"
+#include "media/video/capture/screen/differ.h"
+#include "media/video/capture/screen/mouse_cursor_shape.h"
+#include "media/video/capture/screen/screen_capture_data.h"
+#include "media/video/capture/screen/screen_capture_frame.h"
+#include "media/video/capture/screen/screen_capture_frame_queue.h"
+#include "media/video/capture/screen/screen_capturer_helper.h"
+#include "media/video/capture/screen/shared_buffer_factory.h"
+#include "media/video/capture/screen/win/desktop.h"
+#include "media/video/capture/screen/win/scoped_thread_desktop.h"
 #include "third_party/skia/include/core/SkColorPriv.h"
 
-namespace remoting {
+namespace media {
 
 namespace {
 
@@ -46,11 +46,11 @@ const uint32 kPixelBgraWhite = 0xffffffff;
 const uint32 kPixelBgraTransparent = 0x00000000;
 
 // A class representing a full-frame pixel buffer.
-class VideoFrameWin : public VideoFrame {
+class ScreenCaptureFrameWin : public ScreenCaptureFrame {
  public:
-  VideoFrameWin(HDC desktop_dc, const SkISize& size,
+  ScreenCaptureFrameWin(HDC desktop_dc, const SkISize& size,
                 SharedBufferFactory* shared_buffer_factory);
-  virtual ~VideoFrameWin();
+  virtual ~ScreenCaptureFrameWin();
 
   // Returns handle of the device independent bitmap representing this frame
   // buffer to GDI.
@@ -68,20 +68,19 @@ class VideoFrameWin : public VideoFrame {
   // Used to allocate shared memory buffers if set.
   SharedBufferFactory* shared_buffer_factory_;
 
-  DISALLOW_COPY_AND_ASSIGN(VideoFrameWin);
+  DISALLOW_COPY_AND_ASSIGN(ScreenCaptureFrameWin);
 };
 
-// VideoFrameCapturerWin captures 32bit RGB using GDI.
+// ScreenCapturerWin captures 32bit RGB using GDI.
 //
-// VideoFrameCapturerWin is double-buffered as required by VideoFrameCapturer.
-// See remoting/host/video_frame_capturer.h.
-class VideoFrameCapturerWin : public VideoFrameCapturer {
+// ScreenCapturerWin is double-buffered as required by ScreenCapturer.
+class ScreenCapturerWin : public ScreenCapturer {
  public:
-  VideoFrameCapturerWin();
-  explicit VideoFrameCapturerWin(SharedBufferFactory* shared_buffer_factory);
-  virtual ~VideoFrameCapturerWin();
+  ScreenCapturerWin();
+  explicit ScreenCapturerWin(SharedBufferFactory* shared_buffer_factory);
+  virtual ~ScreenCapturerWin();
 
-  // Overridden from VideoFrameCapturer:
+  // Overridden from ScreenCapturer:
   virtual void Start(Delegate* delegate) OVERRIDE;
   virtual void Stop() OVERRIDE;
   virtual void InvalidateRegion(const SkRegion& invalid_region) OVERRIDE;
@@ -91,7 +90,7 @@ class VideoFrameCapturerWin : public VideoFrameCapturer {
   // Make sure that the device contexts match the screen configuration.
   void PrepareCaptureResources();
 
-  // Creates a CaptureData instance wrapping the current framebuffer and
+  // Creates a ScreenCaptureData instance wrapping the current framebuffer and
   // notifies |delegate_|.
   void CaptureRegion(const SkRegion& region,
                      const base::Time& capture_start_time);
@@ -113,7 +112,7 @@ class VideoFrameCapturerWin : public VideoFrameCapturer {
 
   // A thread-safe list of invalid rectangles, and the size of the most
   // recently captured screen.
-  VideoFrameCapturerHelper helper_;
+  ScreenCapturerHelper helper_;
 
   // Snapshot of the last cursor bitmap we sent to the client. This is used
   // to diff against the current cursor so we only send a cursor-change
@@ -127,7 +126,7 @@ class VideoFrameCapturerWin : public VideoFrameCapturer {
   base::win::ScopedCreateDC memory_dc_;
 
   // Queue of the frames buffers.
-  VideoFrameQueue queue_;
+  ScreenCaptureFrameQueue queue_;
 
   // Rectangle describing the bounds of the desktop device context.
   SkIRect desktop_dc_rect_;
@@ -138,20 +137,20 @@ class VideoFrameCapturerWin : public VideoFrameCapturer {
   base::ScopedNativeLibrary dwmapi_library_;
   DwmEnableCompositionFunc composition_func_;
 
-  DISALLOW_COPY_AND_ASSIGN(VideoFrameCapturerWin);
+  DISALLOW_COPY_AND_ASSIGN(ScreenCapturerWin);
 };
 
 // 3780 pixels per meter is equivalent to 96 DPI, typical on desktop monitors.
 static const int kPixelsPerMeter = 3780;
 
-VideoFrameWin::VideoFrameWin(
+ScreenCaptureFrameWin::ScreenCaptureFrameWin(
     HDC desktop_dc,
     const SkISize& size,
     SharedBufferFactory* shared_buffer_factory)
     : shared_buffer_factory_(shared_buffer_factory) {
   // Allocate a shared memory buffer.
   uint32 buffer_size =
-    size.width() * size.height() * CaptureData::kBytesPerPixel;
+    size.width() * size.height() * ScreenCaptureData::kBytesPerPixel;
   if (shared_buffer_factory_) {
     scoped_refptr<SharedBuffer> shared_buffer =
         shared_buffer_factory_->CreateSharedBuffer(buffer_size);
@@ -162,17 +161,18 @@ VideoFrameWin::VideoFrameWin(
   AllocateBitmap(desktop_dc, size);
 }
 
-VideoFrameWin::~VideoFrameWin() {
+ScreenCaptureFrameWin::~ScreenCaptureFrameWin() {
   if (shared_buffer())
     shared_buffer_factory_->ReleaseSharedBuffer(shared_buffer());
 }
 
-HBITMAP VideoFrameWin::GetBitmap() {
+HBITMAP ScreenCaptureFrameWin::GetBitmap() {
   return bitmap_;
 }
 
-void VideoFrameWin::AllocateBitmap(HDC desktop_dc, const SkISize& size) {
-  int bytes_per_row = size.width() * CaptureData::kBytesPerPixel;
+void ScreenCaptureFrameWin::AllocateBitmap(HDC desktop_dc,
+                                           const SkISize& size) {
+  int bytes_per_row = size.width() * ScreenCaptureData::kBytesPerPixel;
 
   // Describe a device independent bitmap (DIB) that is the size of the desktop.
   BITMAPINFO bmi;
@@ -180,7 +180,7 @@ void VideoFrameWin::AllocateBitmap(HDC desktop_dc, const SkISize& size) {
   bmi.bmiHeader.biHeight = -size.height();
   bmi.bmiHeader.biWidth = size.width();
   bmi.bmiHeader.biPlanes = 1;
-  bmi.bmiHeader.biBitCount = CaptureData::kBytesPerPixel * 8;
+  bmi.bmiHeader.biBitCount = ScreenCaptureData::kBytesPerPixel * 8;
   bmi.bmiHeader.biSize = sizeof(bmi.bmiHeader);
   bmi.bmiHeader.biSizeImage = bytes_per_row * size.height();
   bmi.bmiHeader.biXPelsPerMeter = kPixelsPerMeter;
@@ -205,14 +205,14 @@ void VideoFrameWin::AllocateBitmap(HDC desktop_dc, const SkISize& size) {
       bmi.bmiHeader.biSizeImage / std::abs(bmi.bmiHeader.biHeight));
 }
 
-VideoFrameCapturerWin::VideoFrameCapturerWin()
+ScreenCapturerWin::ScreenCapturerWin()
     : shared_buffer_factory_(NULL),
       delegate_(NULL),
       desktop_dc_rect_(SkIRect::MakeEmpty()),
       composition_func_(NULL) {
 }
 
-VideoFrameCapturerWin::VideoFrameCapturerWin(
+ScreenCapturerWin::ScreenCapturerWin(
     SharedBufferFactory* shared_buffer_factory)
     : shared_buffer_factory_(shared_buffer_factory),
       delegate_(NULL),
@@ -220,14 +220,14 @@ VideoFrameCapturerWin::VideoFrameCapturerWin(
       composition_func_(NULL) {
 }
 
-VideoFrameCapturerWin::~VideoFrameCapturerWin() {
+ScreenCapturerWin::~ScreenCapturerWin() {
 }
 
-void VideoFrameCapturerWin::InvalidateRegion(const SkRegion& invalid_region) {
+void ScreenCapturerWin::InvalidateRegion(const SkRegion& invalid_region) {
   helper_.InvalidateRegion(invalid_region);
 }
 
-void VideoFrameCapturerWin::CaptureFrame() {
+void ScreenCapturerWin::CaptureFrame() {
   base::Time capture_start_time = base::Time::Now();
 
   // Force the system to power-up display hardware, if it has been suspended.
@@ -239,8 +239,8 @@ void VideoFrameCapturerWin::CaptureFrame() {
   // Copy screen bits to the current buffer.
   CaptureImage();
 
-  const VideoFrame* current_buffer = queue_.current_frame();
-  const VideoFrame* last_buffer = queue_.previous_frame();
+  const ScreenCaptureFrame* current_buffer = queue_.current_frame();
+  const ScreenCaptureFrame* last_buffer = queue_.previous_frame();
   if (last_buffer) {
     // Make sure the differencer is set up correctly for these previous and
     // current screens.
@@ -250,7 +250,7 @@ void VideoFrameCapturerWin::CaptureFrame() {
         (differ_->bytes_per_row() != current_buffer->bytes_per_row())) {
       differ_.reset(new Differ(current_buffer->dimensions().width(),
                                current_buffer->dimensions().height(),
-                               CaptureData::kBytesPerPixel,
+                               ScreenCaptureData::kBytesPerPixel,
                                current_buffer->bytes_per_row()));
     }
 
@@ -264,7 +264,7 @@ void VideoFrameCapturerWin::CaptureFrame() {
     helper_.InvalidateScreen(current_buffer->dimensions());
   }
 
-  // Wrap the captured frame into CaptureData structure and invoke
+  // Wrap the captured frame into ScreenCaptureData structure and invoke
   // the completion callback.
   SkRegion invalid_region;
   helper_.SwapInvalidRegion(&invalid_region);
@@ -274,7 +274,7 @@ void VideoFrameCapturerWin::CaptureFrame() {
   CaptureCursor();
 }
 
-void VideoFrameCapturerWin::Start(Delegate* delegate) {
+void ScreenCapturerWin::Start(Delegate* delegate) {
   DCHECK(delegate_ == NULL);
 
   delegate_ = delegate;
@@ -298,7 +298,7 @@ void VideoFrameCapturerWin::Start(Delegate* delegate) {
   }
 }
 
-void VideoFrameCapturerWin::Stop() {
+void ScreenCapturerWin::Stop() {
   // Restore Aero.
   if (composition_func_ != NULL) {
     (*composition_func_)(DWM_EC_ENABLECOMPOSITION);
@@ -307,7 +307,7 @@ void VideoFrameCapturerWin::Stop() {
   delegate_ = NULL;
 }
 
-void VideoFrameCapturerWin::PrepareCaptureResources() {
+void ScreenCapturerWin::PrepareCaptureResources() {
   // Switch to the desktop receiving user input if different from the current
   // one.
   scoped_ptr<Desktop> input_desktop = Desktop::GetInputDesktop();
@@ -349,14 +349,14 @@ void VideoFrameCapturerWin::PrepareCaptureResources() {
   }
 }
 
-void VideoFrameCapturerWin::CaptureRegion(
+void ScreenCapturerWin::CaptureRegion(
     const SkRegion& region,
     const base::Time& capture_start_time) {
-  const VideoFrame* current_buffer = queue_.current_frame();
+  const ScreenCaptureFrame* current_buffer = queue_.current_frame();
 
-  scoped_refptr<CaptureData> data(
-      new CaptureData(current_buffer->pixels(), current_buffer->bytes_per_row(),
-                      current_buffer->dimensions()));
+  scoped_refptr<ScreenCaptureData> data(new ScreenCaptureData(
+      current_buffer->pixels(), current_buffer->bytes_per_row(),
+      current_buffer->dimensions()));
   data->mutable_dirty_region() = region;
   data->set_shared_buffer(current_buffer->shared_buffer());
 
@@ -369,7 +369,7 @@ void VideoFrameCapturerWin::CaptureRegion(
   delegate_->OnCaptureCompleted(data);
 }
 
-void VideoFrameCapturerWin::CaptureImage() {
+void ScreenCapturerWin::CaptureImage() {
   // If the current buffer is from an older generation then allocate a new one.
   // Note that we can't reallocate other buffers at this point, since the caller
   // may still be reading from them.
@@ -379,14 +379,15 @@ void VideoFrameCapturerWin::CaptureImage() {
 
     SkISize size = SkISize::Make(desktop_dc_rect_.width(),
                                  desktop_dc_rect_.height());
-    scoped_ptr<VideoFrameWin> buffer(
-        new VideoFrameWin(*desktop_dc_, size, shared_buffer_factory_));
-    queue_.ReplaceCurrentFrame(buffer.PassAs<VideoFrame>());
+    scoped_ptr<ScreenCaptureFrameWin> buffer(
+        new ScreenCaptureFrameWin(*desktop_dc_, size, shared_buffer_factory_));
+    queue_.ReplaceCurrentFrame(buffer.PassAs<ScreenCaptureFrame>());
   }
 
   // Select the target bitmap into the memory dc and copy the rect from desktop
   // to memory.
-  VideoFrameWin* current = static_cast<VideoFrameWin*>(queue_.current_frame());
+  ScreenCaptureFrameWin* current = static_cast<ScreenCaptureFrameWin*>(
+      queue_.current_frame());
   HGDIOBJ previous_object = SelectObject(memory_dc_, current->GetBitmap());
   if (previous_object != NULL) {
     BitBlt(memory_dc_,
@@ -401,9 +402,9 @@ void VideoFrameCapturerWin::CaptureImage() {
   }
 }
 
-void VideoFrameCapturerWin::AddCursorOutline(int width,
-                                             int height,
-                                             uint32* dst) {
+void ScreenCapturerWin::AddCursorOutline(int width,
+                                         int height,
+                                         uint32* dst) {
   for (int y = 0; y < height; y++) {
     for (int x = 0; x < width; x++) {
       // If this is a transparent pixel (bgr == 0 and alpha = 0), check the
@@ -423,7 +424,7 @@ void VideoFrameCapturerWin::AddCursorOutline(int width,
   }
 }
 
-void VideoFrameCapturerWin::CaptureCursor() {
+void ScreenCapturerWin::CaptureCursor() {
   CURSORINFO cursor_info;
   cursor_info.cbSize = sizeof(CURSORINFO);
   if (!GetCursorInfo(&cursor_info)) {
@@ -478,7 +479,7 @@ void VideoFrameCapturerWin::CaptureCursor() {
   if (!color_bitmap) {
     height /= 2;
   }
-  int data_size = height * width * CaptureData::kBytesPerPixel;
+  int data_size = height * width * ScreenCaptureData::kBytesPerPixel;
 
   scoped_ptr<MouseCursorShape> cursor(new MouseCursorShape());
   cursor->data.resize(data_size);
@@ -506,10 +507,10 @@ void VideoFrameCapturerWin::CaptureCursor() {
         dst[1] = SkAlphaMul(src[1], src[3]);
         dst[2] = SkAlphaMul(src[2], src[3]);
         dst[3] = src[3];
-        dst += CaptureData::kBytesPerPixel;
-        src += CaptureData::kBytesPerPixel;
+        dst += ScreenCaptureData::kBytesPerPixel;
+        src += ScreenCaptureData::kBytesPerPixel;
       }
-      src -= row_bytes + (width * CaptureData::kBytesPerPixel);
+      src -= row_bytes + (width * ScreenCaptureData::kBytesPerPixel);
     }
   } else {
     if (bitmap.bmPlanes != 1 || bitmap.bmBitsPixel != 1) {
@@ -583,16 +584,16 @@ void VideoFrameCapturerWin::CaptureCursor() {
 }  // namespace
 
 // static
-scoped_ptr<VideoFrameCapturer> VideoFrameCapturer::Create() {
-  return scoped_ptr<VideoFrameCapturer>(new VideoFrameCapturerWin());
+scoped_ptr<ScreenCapturer> ScreenCapturer::Create() {
+  return scoped_ptr<ScreenCapturer>(new ScreenCapturerWin());
 }
 
 // static
-scoped_ptr<VideoFrameCapturer> VideoFrameCapturer::CreateWithFactory(
+scoped_ptr<ScreenCapturer> ScreenCapturer::CreateWithFactory(
     SharedBufferFactory* shared_buffer_factory) {
-  scoped_ptr<VideoFrameCapturerWin> capturer(
-      new VideoFrameCapturerWin(shared_buffer_factory));
-  return capturer.PassAs<VideoFrameCapturer>();
+  scoped_ptr<ScreenCapturerWin> capturer(
+      new ScreenCapturerWin(shared_buffer_factory));
+  return capturer.PassAs<ScreenCapturer>();
 }
 
-}  // namespace remoting
+}  // namespace media