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/*
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* This file is part of OpenTTD.
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* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
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* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file sdl2_v.h Base of the SDL2 video driver. */
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#ifndef VIDEO_SDL_H
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#define VIDEO_SDL_H
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#include <condition_variable>
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#include "video_driver.hpp"
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/** The SDL video driver. */
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class VideoDriver_SDL_Base : public VideoDriver {
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public:
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VideoDriver_SDL_Base() : sdl_window(nullptr) {}
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const char *Start(const StringList ¶m) override;
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void Stop() override;
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void MakeDirty(int left, int top, int width, int height) override;
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void MainLoop() override;
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bool ChangeResolution(int w, int h) override;
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bool ToggleFullscreen(bool fullscreen) override;
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bool AfterBlitterChange() override;
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bool ClaimMousePointer() override;
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void EditBoxGainedFocus() override;
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void EditBoxLostFocus() override;
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std::vector<int> GetListOfMonitorRefreshRates() override;
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const char *GetName() const override { return "sdl"; }
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protected:
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struct SDL_Window *sdl_window; ///< Main SDL window.
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Palette local_palette; ///< Copy of _cur_palette.
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bool buffer_locked; ///< Video buffer was locked by the main thread.
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Rect dirty_rect; ///< Rectangle encompassing the dirty area of the video buffer.
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Dimension GetScreenSize() const override;
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void InputLoop() override;
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bool LockVideoBuffer() override;
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void UnlockVideoBuffer() override;
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void CheckPaletteAnim() override;
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bool PollEvent() override;
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/** Indicate to the driver the client-side might have changed. */
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void ClientSizeChanged(int w, int h, bool force);
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/** (Re-)create the backing store. */
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virtual bool AllocateBackingStore(int w, int h, bool force = false) = 0;
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/** Get a pointer to the video buffer. */
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virtual void *GetVideoPointer() = 0;
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/** Hand video buffer back to the painting backend. */
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virtual void ReleaseVideoPointer() = 0;
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/** Create the main window. */
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virtual bool CreateMainWindow(uint w, uint h, uint flags = 0);
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private:
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void LoopOnce();
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void MainLoopCleanup();
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bool CreateMainSurface(uint w, uint h, bool resize);
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const char *Initialize();
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#ifdef __EMSCRIPTEN__
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/* Convert a constant pointer back to a non-constant pointer to a member function. */
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static void EmscriptenLoop(void *self) { ((VideoDriver_SDL_Base *)self)->LoopOnce(); }
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#endif
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/**
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* This is true to indicate that keyboard input is in text input mode, and SDL_TEXTINPUT events are enabled.
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*/
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bool edit_box_focused;
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int startup_display;
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};
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#endif /* VIDEO_SDL_H */
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