webrtc/modules/desktop_capture/desktop_geometry.cc
Bryan Ferguson e8ef87bdad Include menus & dialogs in frames captured by WindowCapturerWin
This change adds logic to WindowCapturerWin to capture overlapping
owned/pop-up windows (e.g. menus, dialogs, tooltips). This makes window
capture behavior more consistent regardless of whether
CroppingWindowCapturerWin is used & its conditions for using crop-from-
screen capture are met (in ShouldUseScreenCapturer). (I.e. regardless
of OS version, window shape / translucency, occlusion by another
potentially top-most window, or whether the capturing app has opted in
to using the cropping capturer).

Owned/pop-up windows associated with the selected window are enumerated
then captured individually, with their contents composited into the
final frame.

This change also:
- Crops out the top window border (which exposed a bit of the background
  when using the cropping capturer, and resulted in an inconsistent
  appearance compared to the side & bottom borders being cropped out).

Bug: chromium:980864
Change-Id: I81c504848a0c0e6bf122aeff437b400e44944718
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/148302
Commit-Queue: Jamie Walch <jamiewalch@chromium.org>
Reviewed-by: Jamie Walch <jamiewalch@chromium.org>
Cr-Commit-Position: refs/heads/master@{#28922}
2019-08-21 07:55:07 +00:00

79 lines
2.1 KiB
C++

/*
* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "modules/desktop_capture/desktop_geometry.h"
#include <algorithm>
#include <cmath>
namespace webrtc {
bool DesktopRect::Contains(const DesktopVector& point) const {
return point.x() >= left() && point.x() < right() && point.y() >= top() &&
point.y() < bottom();
}
bool DesktopRect::ContainsRect(const DesktopRect& rect) const {
return rect.left() >= left() && rect.right() <= right() &&
rect.top() >= top() && rect.bottom() <= bottom();
}
void DesktopRect::IntersectWith(const DesktopRect& rect) {
left_ = std::max(left(), rect.left());
top_ = std::max(top(), rect.top());
right_ = std::min(right(), rect.right());
bottom_ = std::min(bottom(), rect.bottom());
if (is_empty()) {
left_ = 0;
top_ = 0;
right_ = 0;
bottom_ = 0;
}
}
void DesktopRect::UnionWith(const DesktopRect& rect) {
if (is_empty()) {
*this = rect;
return;
}
if (rect.is_empty()) {
return;
}
left_ = std::min(left(), rect.left());
top_ = std::min(top(), rect.top());
right_ = std::max(right(), rect.right());
bottom_ = std::max(bottom(), rect.bottom());
}
void DesktopRect::Translate(int32_t dx, int32_t dy) {
left_ += dx;
top_ += dy;
right_ += dx;
bottom_ += dy;
}
void DesktopRect::Extend(int32_t left_offset,
int32_t top_offset,
int32_t right_offset,
int32_t bottom_offset) {
left_ -= left_offset;
top_ -= top_offset;
right_ += right_offset;
bottom_ += bottom_offset;
}
void DesktopRect::Scale(double horizontal, double vertical) {
right_ += static_cast<int>(std::round(width() * (horizontal - 1)));
bottom_ += static_cast<int>(std::round(height() * (vertical - 1)));
}
} // namespace webrtc