src/egl/main/egldisplay.h

   1 #ifndef EGLDISPLAY_INCLUDED
   2 #define EGLDISPLAY_INCLUDED
   3
   4
   5 #include "egltypedefs.h"
   6 #include "egldefines.h"
   7 #include "eglmutex.h"
   8
   9
  10 enum _egl_resource_type {
  11    _EGL_RESOURCE_CONTEXT,
  12    _EGL_RESOURCE_SURFACE,
  13    _EGL_RESOURCE_IMAGE,
  14
  15    _EGL_NUM_RESOURCES
  16 };
  17
  18
  19 /**
  20  * A resource of a display.
  21  */
  22 struct _egl_resource
  23 {
  24    /* which display the resource belongs to */
  25    _EGLDisplay *Display;
  26    EGLBoolean IsLinked;
  27
  28    /* used to link resources of the same type */
  29    _EGLResource *Next;
  30 };
  31
  32
  33 /**
  34  * Optional EGL extensions info.
  35  */
  36 struct _egl_extensions
  37 {
  38    EGLBoolean MESA_screen_surface;
  39    EGLBoolean MESA_copy_context;
  40    EGLBoolean KHR_image_base;
  41    EGLBoolean KHR_image_pixmap;
  42    EGLBoolean KHR_vg_parent_image;
  43    EGLBoolean KHR_gl_texture_2D_image;
  44    EGLBoolean KHR_gl_texture_cubemap_image;
  45    EGLBoolean KHR_gl_texture_3D_image;
  46    EGLBoolean KHR_gl_renderbuffer_image;
  47
  48    char String[_EGL_MAX_EXTENSIONS_LEN];
  49 };
  50
  51
  52 struct _egl_display
  53 {
  54    /* used to link displays */
  55    _EGLDisplay *Next;
  56
  57    _EGLMutex Mutex;
  58
  59    EGLNativeDisplayType NativeDisplay;
  60
  61    EGLBoolean Initialized; /**< True if the display is initialized */
  62    _EGLDriver *Driver;
  63    void *DriverData; /* private to driver */
  64
  65    int APImajor, APIminor; /**< as returned by eglInitialize() */
  66    char Version[1000];     /**< initialized from APImajor/minor, DriverName */
  67
  68    /** Bitmask of supported APIs (EGL_xx_BIT) set by the driver during init */
  69    EGLint ClientAPIsMask;
  70    char ClientAPIs[1000];   /**< updated by eglQueryString */
  71
  72    _EGLExtensions Extensions;
  73
  74    EGLint NumScreens;
  75    _EGLScreen **Screens;  /* array [NumScreens] */
  76
  77    EGLint MaxConfigs;
  78    EGLint NumConfigs;
  79    _EGLConfig **Configs;  /* array [NumConfigs] of ptr to _EGLConfig */
  80
  81    /* lists of resources */
  82    _EGLResource *ResourceLists[_EGL_NUM_RESOURCES];
  83 };
  84
  85
  86 extern void
  87 _eglFiniDisplay(void);
  88
  89
  90 extern _EGLDisplay *
  91 _eglFindDisplay(EGLNativeDisplayType displayName);
  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 PUBLIC EGLBoolean
 110 _eglCheckResource(void *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(void *res, _EGLResourceType type, _EGLDisplay *dpy);
 126 {
 127    return (((_EGLResource *) 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 extern void
 159 _eglLinkResource(_EGLResource *res, _EGLResourceType type, _EGLDisplay *dpy);
 160
 161
 162 extern void
 163 _eglUnlinkResource(_EGLResource *res, _EGLResourceType type);
 164
 165
 166 /**
 167  * Return true if the resource is linked.
 168  */
 169 static INLINE EGLBoolean
 170 _eglIsResourceLinked(_EGLResource *res)
 171 {
 172    return res->IsLinked;
 173 }
 174
 175
 176 #endif /* EGLDISPLAY_INCLUDED */