src/egl/main/egldisplay.h

   1 #ifndef EGLDISPLAY_INCLUDED
   2 #define EGLDISPLAY_INCLUDED
   3
   4 #include "egltypedefs.h"
   5 #include "egldefines.h"
   6
   7
   8 enum _egl_resource_type {
   9    _EGL_RESOURCE_CONTEXT,
  10    _EGL_RESOURCE_SURFACE,
  11    _EGL_RESOURCE_IMAGE,
  12
  13    _EGL_NUM_RESOURCES
  14 };
  15
  16
  17 /**
  18  * A resource of a display.
  19  */
  20 struct _egl_resource
  21 {
  22    _EGLDisplay *Display;
  23    _EGLResource *Next;
  24 };
  25
  26
  27 /**
  28  * Optional EGL extensions info.
  29  */
  30 struct _egl_extensions
  31 {
  32    EGLBoolean MESA_screen_surface;
  33    EGLBoolean MESA_copy_context;
  34    EGLBoolean KHR_image_base;
  35    EGLBoolean KHR_image_pixmap;
  36
  37    char String[_EGL_MAX_EXTENSIONS_LEN];
  38 };
  39
  40
  41 struct _egl_display
  42 {
  43    /* used to link displays */
  44    _EGLDisplay *Next;
  45
  46    EGLNativeDisplayType NativeDisplay;
  47
  48    _EGLDriver *Driver;
  49    void *DriverData; /* private to driver */
  50
  51    int APImajor, APIminor; /**< as returned by eglInitialize() */
  52    char Version[1000];     /**< initialized from APImajor/minor, DriverName */
  53
  54    /** Bitmask of supported APIs (EGL_xx_BIT) set by the driver during init */
  55    EGLint ClientAPIsMask;
  56    char ClientAPIs[1000];   /**< updated by eglQueryString */
  57
  58    _EGLExtensions Extensions;
  59
  60    int LargestPbuffer;
  61
  62    EGLint NumScreens;
  63    _EGLScreen **Screens;  /* array [NumScreens] */
  64
  65    EGLint MaxConfigs;
  66    EGLint NumConfigs;
  67    _EGLConfig **Configs;  /* array [NumConfigs] of ptr to _EGLConfig */
  68
  69    /* lists of resources */
  70    _EGLResource *ResourceLists[_EGL_NUM_RESOURCES];
  71 };
  72
  73
  74 extern void
  75 _eglFiniDisplay(void);
  76
  77
  78 extern _EGLDisplay *
  79 _eglNewDisplay(NativeDisplayType displayName);
  80
  81
  82 extern EGLDisplay
  83 _eglLinkDisplay(_EGLDisplay *dpy);
  84
  85
  86 extern void
  87 _eglUnlinkDisplay(_EGLDisplay *dpy);
  88
  89
  90 extern _EGLDisplay *
  91 _eglFindDisplay(NativeDisplayType nativeDisplay);
  92
  93
  94 PUBLIC void
  95 _eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *dpy);
  96
  97
  98 PUBLIC void
  99 _eglCleanupDisplay(_EGLDisplay *disp);
 100
 101
 102 #ifndef _EGL_SKIP_HANDLE_CHECK
 103
 104
 105 extern EGLBoolean
 106 _eglCheckDisplayHandle(EGLDisplay dpy);
 107
 108
 109 extern EGLBoolean
 110 _eglCheckResource(_EGLResource *res, _EGLResourceType type, _EGLDisplay *dpy);
 111
 112
 113 #else /* !_EGL_SKIP_HANDLE_CHECK */
 114
 115 /* Only do a quick check.  This is NOT standard compliant. */
 116
 117 static INLINE EGLBoolean
 118 _eglCheckDisplayHandle(EGLDisplay dpy)
 119 {
 120    return ((_EGLDisplay *) dpy != NULL);
 121 }
 122
 123
 124 static INLINE EGLBoolean
 125 _eglCheckResource(_EGLResource *res, _EGLResourceType type, _EGLDisplay *dpy)
 126 {
 127    return (res->Display == dpy);
 128 }
 129
 130
 131 #endif /* _EGL_SKIP_HANDLE_CHECK */
 132
 133
 134 /**
 135  * Lookup a handle to find the linked display.
 136  * Return NULL if the handle has no corresponding linked display.
 137  */
 138 static INLINE _EGLDisplay *
 139 _eglLookupDisplay(EGLDisplay display)
 140 {
 141    _EGLDisplay *dpy = (_EGLDisplay *) display;
 142    if (!_eglCheckDisplayHandle(display))
 143       dpy = NULL;
 144    return dpy;
 145 }
 146
 147
 148 /**
 149  * Return the handle of a linked display, or EGL_NO_DISPLAY.
 150  */
 151 static INLINE EGLDisplay
 152 _eglGetDisplayHandle(_EGLDisplay *dpy)
 153 {
 154    return (EGLDisplay) ((dpy) ? dpy : EGL_NO_DISPLAY);
 155 }
 156
 157
 158 /**
 159  * Return true if the display is linked.
 160  */
 161 static INLINE EGLBoolean
 162 _eglIsDisplayLinked(_EGLDisplay *dpy)
 163 {
 164    return (EGLBoolean) (_eglGetDisplayHandle(dpy) != EGL_NO_DISPLAY);
 165 }
 166
 167
 168 extern void
 169 _eglLinkResource(_EGLResource *res, _EGLResourceType type, _EGLDisplay *dpy);
 170
 171
 172 extern void
 173 _eglUnlinkResource(_EGLResource *res, _EGLResourceType type);
 174
 175
 176 /**
 177  * Return true if the resource is linked.
 178  */
 179 static INLINE EGLBoolean
 180 _eglIsResourceLinked(_EGLResource *res)
 181 {
 182    return (res->Display != NULL);
 183 }
 184
 185
 186 #endif /* EGLDISPLAY_INCLUDED */