sdl2_v.h

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/*
 * This file is part of OpenTTD.
 * 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.
 * 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.
 * 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/>.
 */
 
#ifndef VIDEO_SDL_H
#define VIDEO_SDL_H
 
#include "video_driver.hpp"
 
class VideoDriver_SDL : public VideoDriver {
public:
  const char *Start(const StringList &param) override;
 
  void Stop() override;
 
  void MakeDirty(int left, int top, int width, int height) override;
 
  void MainLoop() override;
 
  bool ChangeResolution(int w, int h) override;
 
  bool ToggleFullscreen(bool fullscreen) override;
 
  bool AfterBlitterChange() override;
 
  void AcquireBlitterLock() override;
 
  void ReleaseBlitterLock() override;
 
  bool ClaimMousePointer() override;
 
  void EditBoxGainedFocus() override;
 
  void EditBoxLostFocus() override;
 
  const char *GetName() const override { return "sdl"; }
 
protected:
  Dimension GetScreenSize() const override;
 
private:
  int PollEvent();
  void LoopOnce();
  void MainLoopCleanup();
  bool CreateMainSurface(uint w, uint h, bool resize);
 
#ifdef __EMSCRIPTEN__
  /* Convert a constant pointer back to a non-constant pointer to a member function. */
  static void EmscriptenLoop(void *self) { ((VideoDriver_SDL *)self)->LoopOnce(); }
#endif
 
  bool edit_box_focused;
 
  uint32 cur_ticks;
  uint32 last_cur_ticks;
  uint32 next_tick;
 
  int startup_display;
  std::thread draw_thread;
  std::unique_lock<std::recursive_mutex> draw_lock;
};
 
class FVideoDriver_SDL : public DriverFactoryBase {
public:
  FVideoDriver_SDL() : DriverFactoryBase(Driver::DT_VIDEO, 5, "sdl", "SDL Video Driver") {}
  Driver *CreateInstance() const override { return new VideoDriver_SDL(); }
};
 
#endif /* VIDEO_SDL_H */