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84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
/*
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Copyright © 2015-2018 by The qTox Project Contributors
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This file is part of qTox, a Qt-based graphical interface for Tox.
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qTox is libre software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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qTox is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with qTox. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "videomode.h"
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/**
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* @struct VideoMode
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* @brief Describes a video mode supported by a device.
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*
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* @var unsigned short VideoMode::width, VideoMode::height
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* @brief Displayed video resolution (NOT frame resolution).
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*
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* @var unsigned short VideoMode::x, VideoMode::y
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* @brief Coordinates of upper-left corner.
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*
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* @var float VideoMode::FPS
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* @brief Frames per second supported by the device at this resolution
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* @note a value < 0 indicates an invalid value
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*/
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VideoMode::VideoMode(int width, int height, int x, int y, float FPS)
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: width(width)
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, height(height)
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, x(x)
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, y(y)
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, FPS(FPS)
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{
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}
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VideoMode::VideoMode(QRect rect)
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: width(rect.width())
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, height(rect.height())
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, x(rect.x())
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, y(rect.y())
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{
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}
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QRect VideoMode::toRect() const
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{
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return QRect(x, y, width, height);
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}
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bool VideoMode::operator==(const VideoMode& other) const
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{
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return width == other.width && height == other.height && x == other.x && y == other.y
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&& qFuzzyCompare(FPS, other.FPS) && pixel_format == other.pixel_format;
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}
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uint32_t VideoMode::norm(const VideoMode& other) const
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{
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return qAbs(this->width - other.width) + qAbs(this->height - other.height);
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}
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uint32_t VideoMode::tolerance() const
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{
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constexpr uint32_t minTolerance = 300; // keep wider tolerance for low res cameras
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constexpr uint32_t toleranceFactor = 10; // video mode must be within 10% to be "close enough" to ideal
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return std::max((width + height)/toleranceFactor, minTolerance);
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}
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/**
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* @brief All zeros means a default/unspecified mode
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*/
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VideoMode::operator bool() const
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{
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return width || height || static_cast<int>(FPS);
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}
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