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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "remoting/capturer/video_frame_capturer.h" | 5 #include "remoting/capturer/video_frame_capturer.h" |
6 | 6 |
7 #include <X11/Xlib.h> | 7 #include <X11/Xlib.h> |
8 #include <X11/Xutil.h> | 8 #include <X11/Xutil.h> |
9 #include <X11/extensions/Xdamage.h> | 9 #include <X11/extensions/Xdamage.h> |
10 #include <X11/extensions/Xfixes.h> | 10 #include <X11/extensions/Xfixes.h> |
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55 VideoFrameCapturerLinux(); | 55 VideoFrameCapturerLinux(); |
56 virtual ~VideoFrameCapturerLinux(); | 56 virtual ~VideoFrameCapturerLinux(); |
57 | 57 |
58 bool Init(); // TODO(ajwong): Do we really want this to be synchronous? | 58 bool Init(); // TODO(ajwong): Do we really want this to be synchronous? |
59 | 59 |
60 // Capturer interface. | 60 // Capturer interface. |
61 virtual void Start(Delegate* delegate) OVERRIDE; | 61 virtual void Start(Delegate* delegate) OVERRIDE; |
62 virtual void Stop() OVERRIDE; | 62 virtual void Stop() OVERRIDE; |
63 virtual void InvalidateRegion(const SkRegion& invalid_region) OVERRIDE; | 63 virtual void InvalidateRegion(const SkRegion& invalid_region) OVERRIDE; |
64 virtual void CaptureFrame() OVERRIDE; | 64 virtual void CaptureFrame() OVERRIDE; |
65 virtual const SkISize& size_most_recent() const OVERRIDE; | |
66 | 65 |
67 private: | 66 private: |
68 void InitXDamage(); | 67 void InitXDamage(); |
69 | 68 |
70 // Read and handle all currently-pending XEvents. | 69 // Read and handle all currently-pending XEvents. |
71 // In the DAMAGE case, process the XDamage events and store the resulting | 70 // In the DAMAGE case, process the XDamage events and store the resulting |
72 // damage rectangles in the VideoFrameCapturerHelper. | 71 // damage rectangles in the VideoFrameCapturerHelper. |
73 // In all cases, call ScreenConfigurationChanged() in response to any | 72 // In all cases, call ScreenConfigurationChanged() in response to any |
74 // ConfigNotify events. | 73 // ConfigNotify events. |
75 void ProcessPendingXEvents(); | 74 void ProcessPendingXEvents(); |
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582 uint32_t b = (((pixel & blue_mask) >> blue_shift) * 255) / max_blue; | 581 uint32_t b = (((pixel & blue_mask) >> blue_shift) * 255) / max_blue; |
583 uint32_t g = (((pixel & green_mask) >> green_shift) * 255) / max_green; | 582 uint32_t g = (((pixel & green_mask) >> green_shift) * 255) / max_green; |
584 // Write as 32-bit RGB. | 583 // Write as 32-bit RGB. |
585 dst_pos_32[x] = r << 16 | g << 8 | b; | 584 dst_pos_32[x] = r << 16 | g << 8 | b; |
586 } | 585 } |
587 dst_pos += capture_data->stride(); | 586 dst_pos += capture_data->stride(); |
588 src_pos += src_stride; | 587 src_pos += src_stride; |
589 } | 588 } |
590 } | 589 } |
591 | 590 |
592 const SkISize& VideoFrameCapturerLinux::size_most_recent() const { | |
593 return helper_.size_most_recent(); | |
594 } | |
595 | |
596 } // namespace | 591 } // namespace |
597 | 592 |
598 // static | 593 // static |
599 scoped_ptr<VideoFrameCapturer> VideoFrameCapturer::Create() { | 594 scoped_ptr<VideoFrameCapturer> VideoFrameCapturer::Create() { |
600 scoped_ptr<VideoFrameCapturerLinux> capturer(new VideoFrameCapturerLinux()); | 595 scoped_ptr<VideoFrameCapturerLinux> capturer(new VideoFrameCapturerLinux()); |
601 if (!capturer->Init()) | 596 if (!capturer->Init()) |
602 capturer.reset(); | 597 capturer.reset(); |
603 return capturer.PassAs<VideoFrameCapturer>(); | 598 return capturer.PassAs<VideoFrameCapturer>(); |
604 } | 599 } |
605 | 600 |
606 // static | 601 // static |
607 scoped_ptr<VideoFrameCapturer> VideoFrameCapturer::CreateWithFactory( | 602 scoped_ptr<VideoFrameCapturer> VideoFrameCapturer::CreateWithFactory( |
608 SharedBufferFactory* shared_buffer_factory) { | 603 SharedBufferFactory* shared_buffer_factory) { |
609 NOTIMPLEMENTED(); | 604 NOTIMPLEMENTED(); |
610 return scoped_ptr<VideoFrameCapturer>(); | 605 return scoped_ptr<VideoFrameCapturer>(); |
611 } | 606 } |
612 | 607 |
613 // static | 608 // static |
614 void VideoFrameCapturer::EnableXDamage(bool enable) { | 609 void VideoFrameCapturer::EnableXDamage(bool enable) { |
615 g_should_use_x_damage = enable; | 610 g_should_use_x_damage = enable; |
616 } | 611 } |
617 | 612 |
618 } // namespace remoting | 613 } // namespace remoting |
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