src/egl/main/eglscreen.h

   1 #ifndef EGLSCREEN_INCLUDED
   2 #define EGLSCREEN_INCLUDED
   3
   4
   5 #include "egltypedefs.h"
   6
   7
   8 /**
   9  * Per-screen information.
  10  * Note that an EGL screen doesn't have a size.  A screen may be set to
  11  * one of several display modes (width/height/scanrate).  The screen
  12  * then displays a drawing surface.  The drawing surface must be at least
  13  * as large as the display mode's resolution.  If it's larger, the
  14  * OriginX and OriginY fields control what part of the surface is visible
  15  * on the screen.
  16  */
  17 struct _egl_screen
  18 {
  19    EGLScreenMESA Handle; /* The public/opaque handle which names this object */
  20
  21    _EGLMode *CurrentMode;
  22    _EGLSurface *CurrentSurface;
  23
  24    EGLint OriginX, OriginY; /**< Origin of scan-out region w.r.t. surface */
  25    EGLint StepX, StepY;     /**< Screen position/origin granularity */
  26
  27    EGLint NumModes;
  28    _EGLMode *Modes;  /**< array [NumModes] */
  29 };
  30
  31
  32 extern EGLScreenMESA
  33 _eglAllocScreenHandle(void);
  34
  35
  36 PUBLIC void
  37 _eglInitScreen(_EGLScreen *screen);
  38
  39
  40 extern _EGLScreen *
  41 _eglLookupScreen(EGLScreenMESA screen, _EGLDisplay *dpy);
  42
  43
  44 PUBLIC void
  45 _eglAddScreen(_EGLDisplay *display, _EGLScreen *screen);
  46
  47
  48 extern EGLBoolean
  49 _eglGetScreensMESA(_EGLDriver *drv, _EGLDisplay *dpy, EGLScreenMESA *screens, EGLint max_screens, EGLint *num_screens);
  50
  51
  52 extern _EGLSurface *
  53 _eglCreateScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, const EGLint *attrib_list);
  54
  55
  56 extern EGLBoolean
  57 _eglShowScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, _EGLSurface *surf, _EGLMode *m);
  58
  59
  60 extern EGLBoolean
  61 _eglScreenModeMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, _EGLMode *m);
  62
  63
  64 extern EGLBoolean
  65 _eglScreenPositionMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, EGLint x, EGLint y);
  66
  67
  68 extern EGLBoolean
  69 _eglQueryDisplayMESA(_EGLDriver *drv, _EGLDisplay *dpy, EGLint attribute, EGLint *value);
  70
  71
  72 extern EGLBoolean
  73 _eglQueryScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy,
  74                            _EGLScreen *scrn, _EGLSurface **surface);
  75
  76
  77 extern EGLBoolean
  78 _eglQueryScreenModeMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, _EGLMode **m);
  79
  80
  81 extern EGLBoolean
  82 _eglQueryScreenMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, EGLint attribute, EGLint *value);
  83
  84
  85 extern void
  86 _eglDestroyScreenModes(_EGLScreen *scrn);
  87
  88
  89 PUBLIC void
  90 _eglDestroyScreen(_EGLScreen *scrn);
  91
  92
  93 #endif /* EGLSCREEN_INCLUDED */