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    /* which display the resource belongs to */
  23    _EGLDisplay *Display;
  24    EGLBoolean IsLinked;
  25
  26    /* used to link resources of the same type */
  27    _EGLResource *Next;
  28 };
  29
  30
  31 /**
  32  * Optional EGL extensions info.
  33  */
  34 struct _egl_extensions
  35 {
  36    EGLBoolean MESA_screen_surface;
  37    EGLBoolean MESA_copy_context;
  38    EGLBoolean KHR_image_base;
  39    EGLBoolean KHR_image_pixmap;
  40
  41    char String[_EGL_MAX_EXTENSIONS_LEN];
  42 };
  43
  44
  45 struct _egl_display
  46 {
  47    /* used to link displays */
  48    _EGLDisplay *Next;
  49
  50    EGLNativeDisplayType NativeDisplay;
  51
  52    _EGLDriver *Driver;
  53    void *DriverData; /* private to driver */
  54
  55    int APImajor, APIminor; /**< as returned by eglInitialize() */
  56    char Version[1000];     /**< initialized from APImajor/minor, DriverName */
  57
  58    /** Bitmask of supported APIs (EGL_xx_BIT) set by the driver during init */
  59    EGLint ClientAPIsMask;
  60    char ClientAPIs[1000];   /**< updated by eglQueryString */
  61
  62    _EGLExtensions Extensions;
  63
  64    int LargestPbuffer;
  65
  66    EGLint NumScreens;
  67    _EGLScreen **Screens;  /* array [NumScreens] */
  68
  69    EGLint MaxConfigs;
  70    EGLint NumConfigs;
  71    _EGLConfig **Configs;  /* array [NumConfigs] of ptr to _EGLConfig */
  72
  73    /* lists of resources */
  74    _EGLResource *ResourceLists[_EGL_NUM_RESOURCES];
  75 };
  76
  77
  78 extern void
  79 _eglFiniDisplay(void);
  80
  81
  82 extern _EGLDisplay *
  83 _eglNewDisplay(EGLNativeDisplayType displayName);
  84
  85
  86 extern EGLDisplay
  87 _eglLinkDisplay(_EGLDisplay *dpy);
  88
  89
  90 extern void
  91 _eglUnlinkDisplay(_EGLDisplay *dpy);
  92
  93
  94 extern _EGLDisplay *
  95 _eglFindDisplay(EGLNativeDisplayType nativeDisplay);
  96
  97
  98 PUBLIC void
  99 _eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *dpy);
 100
 101
 102 PUBLIC void
 103 _eglCleanupDisplay(_EGLDisplay *disp);
 104
 105
 106 #ifndef _EGL_SKIP_HANDLE_CHECK
 107
 108
 109 extern EGLBoolean
 110 _eglCheckDisplayHandle(EGLDisplay dpy);
 111
 112
 113 PUBLIC EGLBoolean
 114 _eglCheckResource(void *res, _EGLResourceType type, _EGLDisplay *dpy);
 115
 116
 117 #else /* !_EGL_SKIP_HANDLE_CHECK */
 118
 119 /* Only do a quick check.  This is NOT standard compliant. */
 120
 121 static INLINE EGLBoolean
 122 _eglCheckDisplayHandle(EGLDisplay dpy)
 123 {
 124    return ((_EGLDisplay *) dpy != NULL);
 125 }
 126
 127
 128 static INLINE EGLBoolean
 129 _eglCheckResource(void *res, _EGLResourceType type, _EGLDisplay *dpy);
 130 {
 131    return (((_EGLResource *) res)->Display == dpy);
 132 }
 133
 134
 135 #endif /* _EGL_SKIP_HANDLE_CHECK */
 136
 137
 138 /**
 139  * Lookup a handle to find the linked display.
 140  * Return NULL if the handle has no corresponding linked display.
 141  */
 142 static INLINE _EGLDisplay *
 143 _eglLookupDisplay(EGLDisplay display)
 144 {
 145    _EGLDisplay *dpy = (_EGLDisplay *) display;
 146    if (!_eglCheckDisplayHandle(display))
 147       dpy = NULL;
 148    return dpy;
 149 }
 150
 151
 152 /**
 153  * Return the handle of a linked display, or EGL_NO_DISPLAY.
 154  */
 155 static INLINE EGLDisplay
 156 _eglGetDisplayHandle(_EGLDisplay *dpy)
 157 {
 158    return (EGLDisplay) ((dpy) ? dpy : EGL_NO_DISPLAY);
 159 }
 160
 161
 162 /**
 163  * Return true if the display is linked.
 164  */
 165 static INLINE EGLBoolean
 166 _eglIsDisplayLinked(_EGLDisplay *dpy)
 167 {
 168    return (EGLBoolean) (_eglGetDisplayHandle(dpy) != EGL_NO_DISPLAY);
 169 }
 170
 171
 172 extern void
 173 _eglLinkResource(_EGLResource *res, _EGLResourceType type, _EGLDisplay *dpy);
 174
 175
 176 extern void
 177 _eglUnlinkResource(_EGLResource *res, _EGLResourceType type);
 178
 179
 180 /**
 181  * Return true if the resource is linked.
 182  */
 183 static INLINE EGLBoolean
 184 _eglIsResourceLinked(_EGLResource *res)
 185 {
 186    return res->IsLinked;
 187 }
 188
 189
 190 #endif /* EGLDISPLAY_INCLUDED */