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@@ -12,10 +12,19 @@
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#include "../driver.h"
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#include "../core/geometry_type.hpp"
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#include "../core/math_func.hpp"
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#include <vector>
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extern std::string _ini_videodriver;
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extern std::vector<Dimension> _resolutions;
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extern Dimension _cur_resolution;
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extern bool _rightclick_emulate;
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/** The base of all video drivers. */
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class VideoDriver : public Driver {
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const uint DEFAULT_WINDOW_WIDTH = 640u; ///< Default window width.
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const uint DEFAULT_WINDOW_HEIGHT = 480u; ///< Default window height.
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public:
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/**
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* Mark a particular area dirty.
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@@ -102,11 +111,27 @@ public:
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static VideoDriver *GetInstance() {
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return static_cast<VideoDriver*>(*DriverFactoryBase::GetActiveDriver(Driver::DT_VIDEO));
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}
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protected:
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/*
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* Get the resolution of the main screen.
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*/
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virtual Dimension GetScreenSize() const { return { DEFAULT_WINDOW_WIDTH, DEFAULT_WINDOW_HEIGHT }; }
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/**
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* Apply resolution auto-detection and clamp to sensible defaults.
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*/
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void UpdateAutoResolution()
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{
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if (_cur_resolution.width == 0 || _cur_resolution.height == 0) {
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/* Auto-detect a good resolution. We aim for 75% of the screen size.
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* Limit width times height times bytes per pixel to fit a 32 bit
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* integer, This way all internal drawing routines work correctly. */
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Dimension res = this->GetScreenSize();
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_cur_resolution.width = ClampU(res.width * 3 / 4, DEFAULT_WINDOW_WIDTH, UINT16_MAX / 2);
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_cur_resolution.height = ClampU(res.height * 3 / 4, DEFAULT_WINDOW_HEIGHT, UINT16_MAX / 2);
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}
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}
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};
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extern std::string _ini_videodriver;
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extern std::vector<Dimension> _resolutions;
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extern Dimension _cur_resolution;
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extern bool _rightclick_emulate;
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#endif /* VIDEO_VIDEO_DRIVER_HPP */
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