src/egl/main/eglscreen.h

   1 #ifndef EGLSCREEN_INCLUDED
   2 #define EGLSCREEN_INCLUDED
   3
   4
   5 /**
   6  * Per-screen information.
   7  * Note that an EGL screen doesn't have a size.  A screen may be set to
   8  * one of several display modes (width/height/scanrate).  The screen
   9  * then displays a drawing surface.  The drawing surface must be at least
  10  * as large as the display mode's resolution.  If it's larger, the
  11  * OriginX and OriginY fields control what part of the surface is visible
  12  * on the screen.
  13  */
  14 struct _egl_screen
  15 {
  16    EGLScreenMESA Handle; /* The public/opaque handle which names this object */
  17
  18    _EGLMode *CurrentMode;
  19    _EGLSurface *CurrentSurface;
  20
  21    EGLint OriginX, OriginY; /**< Origin of scan-out region w.r.t. surface */
  22    EGLint StepX, StepY;     /**< Screen position/origin granularity */
  23
  24    EGLint NumModes;
  25    _EGLMode *Modes;  /**< array [NumModes] */
  26 };
  27
  28
  29 extern EGLScreenMESA
  30 _eglAllocScreenHandle(void);
  31
  32
  33 PUBLIC void
  34 _eglInitScreen(_EGLScreen *screen);
  35
  36
  37 extern _EGLScreen *
  38 _eglLookupScreen(EGLScreenMESA screen, _EGLDisplay *dpy);
  39
  40
  41 PUBLIC void
  42 _eglAddScreen(_EGLDisplay *display, _EGLScreen *screen);
  43
  44
  45 extern EGLBoolean
  46 _eglGetScreensMESA(_EGLDriver *drv, _EGLDisplay *dpy, EGLScreenMESA *screens, EGLint max_screens, EGLint *num_screens);
  47
  48
  49 extern _EGLSurface *
  50 _eglCreateScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, const EGLint *attrib_list);
  51
  52
  53 extern EGLBoolean
  54 _eglShowScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, _EGLSurface *surf, _EGLMode *m);
  55
  56
  57 extern EGLBoolean
  58 _eglScreenModeMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, _EGLMode *m);
  59
  60
  61 extern EGLBoolean
  62 _eglScreenPositionMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, EGLint x, EGLint y);
  63
  64
  65 extern EGLBoolean
  66 _eglQueryDisplayMESA(_EGLDriver *drv, _EGLDisplay *dpy, EGLint attribute, EGLint *value);
  67
  68
  69 extern EGLBoolean
  70 _eglQueryScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy,
  71                            _EGLScreen *scrn, _EGLSurface **surface);
  72
  73
  74 extern EGLBoolean
  75 _eglQueryScreenModeMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, _EGLMode **m);
  76
  77
  78 extern EGLBoolean
  79 _eglQueryScreenMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, EGLint attribute, EGLint *value);
  80
  81
  82 extern void
  83 _eglDestroyScreenModes(_EGLScreen *scrn);
  84
  85
  86 PUBLIC void
  87 _eglDestroyScreen(_EGLScreen *scrn);
  88
  89
  90 #endif /* EGLSCREEN_INCLUDED */