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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/>.
*/
/** @file sdl2_v.h Base of the SDL2 video driver. */
#ifndef VIDEO_SDL_H
#define VIDEO_SDL_H
#include "video_driver.hpp"
/** The SDL video driver. */
class VideoDriver_SDL : public VideoDriver {
public:
const char *Start(const StringList ¶m) 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
/**
* This is true to indicate that keyboard input is in text input mode, and SDL_TEXTINPUT events are enabled.
*/
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;
};
/** Factory for the SDL video driver. */
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 */
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