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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /third_party/libwebrtc/modules/desktop_capture/desktop_geometry.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/modules/desktop_capture/desktop_geometry.h')
-rw-r--r-- | third_party/libwebrtc/modules/desktop_capture/desktop_geometry.h | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/desktop_capture/desktop_geometry.h b/third_party/libwebrtc/modules/desktop_capture/desktop_geometry.h new file mode 100644 index 0000000000..691455df57 --- /dev/null +++ b/third_party/libwebrtc/modules/desktop_capture/desktop_geometry.h @@ -0,0 +1,169 @@ +/* + * 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. + */ + +#ifndef MODULES_DESKTOP_CAPTURE_DESKTOP_GEOMETRY_H_ +#define MODULES_DESKTOP_CAPTURE_DESKTOP_GEOMETRY_H_ + +#include <stdint.h> + +#include "rtc_base/system/rtc_export.h" + +namespace webrtc { + +// A vector in the 2D integer space. E.g. can be used to represent screen DPI. +class DesktopVector { + public: + DesktopVector() : x_(0), y_(0) {} + DesktopVector(int32_t x, int32_t y) : x_(x), y_(y) {} + + int32_t x() const { return x_; } + int32_t y() const { return y_; } + bool is_zero() const { return x_ == 0 && y_ == 0; } + + bool equals(const DesktopVector& other) const { + return x_ == other.x_ && y_ == other.y_; + } + + void set(int32_t x, int32_t y) { + x_ = x; + y_ = y; + } + + DesktopVector add(const DesktopVector& other) const { + return DesktopVector(x() + other.x(), y() + other.y()); + } + DesktopVector subtract(const DesktopVector& other) const { + return DesktopVector(x() - other.x(), y() - other.y()); + } + + DesktopVector operator-() const { return DesktopVector(-x_, -y_); } + + private: + int32_t x_; + int32_t y_; +}; + +// Type used to represent screen/window size. +class DesktopSize { + public: + DesktopSize() : width_(0), height_(0) {} + DesktopSize(int32_t width, int32_t height) : width_(width), height_(height) {} + + int32_t width() const { return width_; } + int32_t height() const { return height_; } + + bool is_empty() const { return width_ <= 0 || height_ <= 0; } + + bool equals(const DesktopSize& other) const { + return width_ == other.width_ && height_ == other.height_; + } + + void set(int32_t width, int32_t height) { + width_ = width; + height_ = height; + } + + private: + int32_t width_; + int32_t height_; +}; + +// Represents a rectangle on the screen. +class RTC_EXPORT DesktopRect { + public: + static DesktopRect MakeSize(const DesktopSize& size) { + return DesktopRect(0, 0, size.width(), size.height()); + } + static DesktopRect MakeWH(int32_t width, int32_t height) { + return DesktopRect(0, 0, width, height); + } + static DesktopRect MakeXYWH(int32_t x, + int32_t y, + int32_t width, + int32_t height) { + return DesktopRect(x, y, x + width, y + height); + } + static DesktopRect MakeLTRB(int32_t left, + int32_t top, + int32_t right, + int32_t bottom) { + return DesktopRect(left, top, right, bottom); + } + static DesktopRect MakeOriginSize(const DesktopVector& origin, + const DesktopSize& size) { + return MakeXYWH(origin.x(), origin.y(), size.width(), size.height()); + } + + DesktopRect() : left_(0), top_(0), right_(0), bottom_(0) {} + + int32_t left() const { return left_; } + int32_t top() const { return top_; } + int32_t right() const { return right_; } + int32_t bottom() const { return bottom_; } + int32_t width() const { return right_ - left_; } + int32_t height() const { return bottom_ - top_; } + + void set_width(int32_t width) { right_ = left_ + width; } + void set_height(int32_t height) { bottom_ = top_ + height; } + + DesktopVector top_left() const { return DesktopVector(left_, top_); } + DesktopSize size() const { return DesktopSize(width(), height()); } + + bool is_empty() const { return left_ >= right_ || top_ >= bottom_; } + + bool equals(const DesktopRect& other) const { + return left_ == other.left_ && top_ == other.top_ && + right_ == other.right_ && bottom_ == other.bottom_; + } + + // Returns true if `point` lies within the rectangle boundaries. + bool Contains(const DesktopVector& point) const; + + // Returns true if `rect` lies within the boundaries of this rectangle. + bool ContainsRect(const DesktopRect& rect) const; + + // Finds intersection with `rect`. + void IntersectWith(const DesktopRect& rect); + + // Extends the rectangle to cover `rect`. If `this` is empty, replaces `this` + // with `rect`; if `rect` is empty, this function takes no effect. + void UnionWith(const DesktopRect& rect); + + // Adds (dx, dy) to the position of the rectangle. + void Translate(int32_t dx, int32_t dy); + void Translate(DesktopVector d) { Translate(d.x(), d.y()); } + + // Enlarges current DesktopRect by subtracting `left_offset` and `top_offset` + // from `left_` and `top_`, and adding `right_offset` and `bottom_offset` to + // `right_` and `bottom_`. This function does not normalize the result, so + // `left_` and `top_` may be less than zero or larger than `right_` and + // `bottom_`. + void Extend(int32_t left_offset, + int32_t top_offset, + int32_t right_offset, + int32_t bottom_offset); + + // Scales current DesktopRect. This function does not impact the `top_` and + // `left_`. + void Scale(double horizontal, double vertical); + + private: + DesktopRect(int32_t left, int32_t top, int32_t right, int32_t bottom) + : left_(left), top_(top), right_(right), bottom_(bottom) {} + + int32_t left_; + int32_t top_; + int32_t right_; + int32_t bottom_; +}; + +} // namespace webrtc + +#endif // MODULES_DESKTOP_CAPTURE_DESKTOP_GEOMETRY_H_ |