#ifndef _EVAS_ENGINE_GL_X11_H
#define _EVAS_ENGINE_GL_X11_H

typedef struct _Evas_Engine_Info_GL_X11              Evas_Engine_Info_GL_X11;

/* have this feature */
#define EVAS_ENGINE_GL_X11_SWAP_MODE_EXISTS 1

typedef enum _Evas_Engine_Info_GL_X11_Swap_Mode
{
   EVAS_ENGINE_GL_X11_SWAP_MODE_AUTO      = 0,
   EVAS_ENGINE_GL_X11_SWAP_MODE_FULL      = 1,
   EVAS_ENGINE_GL_X11_SWAP_MODE_COPY      = 2,
   EVAS_ENGINE_GL_X11_SWAP_MODE_DOUBLE    = 3,
   EVAS_ENGINE_GL_X11_SWAP_MODE_TRIPLE    = 4,
   EVAS_ENGINE_GL_X11_SWAP_MODE_QUADRUPLE = 5
} Evas_Engine_Info_GL_X11_Swap_Mode;

struct _Evas_Engine_Info_GL_X11
{
   /* PRIVATE - don't mess with this baby or evas will poke its tongue out */
   /* at you and make nasty noises */
   Evas_Engine_Info magic;

   /* engine specific data & parameters it needs to set up */
   struct {
      void          *display;
      unsigned long  drawable;
      void          *visual;
      unsigned long  colormap;
      int            depth;
      int            screen;
      int            rotation;
      unsigned int   destination_alpha  : 1;
   } info;
   /* engine specific function calls to query stuff about the destination */
   /* engine (what visual & colormap & depth to use, performance info etc. */
   struct {
      void          *(*best_visual_get)   (Evas_Engine_Info_GL_X11 *einfo);
      unsigned long  (*best_colormap_get) (Evas_Engine_Info_GL_X11 *einfo);
      int            (*best_depth_get)    (Evas_Engine_Info_GL_X11 *einfo);
   } func;

   struct {
      void      (*pre_swap)          (void *data, Evas *e);
      void      (*post_swap)         (void *data, Evas *e);

      void       *data; // data for callback calls
   } callback;

   /* non-blocking or blocking mode */
   Evas_Engine_Render_Mode render_mode;

   unsigned char vsync : 1; // does nothing right now
   unsigned char indirect : 1; // use indirect rendering
   unsigned char swap_mode : 4; // what swap mode to assume

   /* window surface should be made with these config */
   int           depth_bits;
   int           stencil_bits;
   int           msaa_bits;
};
#endif
