video.hh

#ifndef VIDEOINITHH
#define VIDEOINITHH

#include "teg.hh"

namespace Video {
  /* This value will change every time a new OpenGL context is made. */
  extern uint32_t opengl_context_cookie;
  /* The above value will be set to this value until the first OpenGL context
     is made, and never* again after.
     * except if the user makes a LOT of contexts... */
  extern const uint32_t uninitialized_context_cookie;
  extern int32_t fullscreen_width, fullscreen_height;
  extern int32_t windowed_width, windowed_height;
  extern bool fullscreen_mode, vsync;
  void Init(); // can be called repeatedly, if you want
  void Kill();
  void ReadConfig(); // should be called once, when the program starts
  void WriteConfig(); // should be called if changed values are to be saved
  uint32_t GetScreenWidth();
  uint32_t GetScreenHeight();
  double GetAspect(); // return aspect ratio of screen
  void Swap(); // swap buffers
  /* Returns false if the screen is not currently being displayed to the user.
     Rendering isn't worthwhile unless this returns true. */
  bool IsScreenActive();
  /* Returns true if the event was fully handled. Returns false if the event
     (possibly modified) should be handled by the caller. */
  bool HandleEvent(SDL_Event& evt);
};

#ifndef TEG_PIXEL_PACK
#define TEG_PIXEL_PACK 8
#endif

#endif