src/egl/main/egldisplay.h

   1 #ifndef EGLDISPLAY_INCLUDED
   2 #define EGLDISPLAY_INCLUDED
   3
   4
   5 #include "egltypedefs.h"
   6 #include "egldefines.h"
   7
   8
   9 enum _egl_resource_type {
  10    _EGL_RESOURCE_CONTEXT,
  11    _EGL_RESOURCE_SURFACE,
  12    _EGL_RESOURCE_IMAGE,
  13
  14    _EGL_NUM_RESOURCES
  15 };
  16
  17
  18 /**
  19  * A resource of a display.
  20  */
  21 struct _egl_resource
  22 {
  23    /* which display the resource belongs to */
  24    _EGLDisplay *Display;
  25    EGLBoolean IsLinked;
  26
  27    /* used to link resources of the same type */
  28    _EGLResource *Next;
  29 };
  30
  31
  32 /**
  33  * Optional EGL extensions info.
  34  */
  35 struct _egl_extensions
  36 {
  37    EGLBoolean MESA_screen_surface;
  38    EGLBoolean MESA_copy_context;
  39    EGLBoolean KHR_image_base;
  40    EGLBoolean KHR_image_pixmap;
  41    EGLBoolean KHR_vg_parent_image;
  42    EGLBoolean KHR_gl_texture_2D_image;
  43    EGLBoolean KHR_gl_texture_cubemap_image;
  44    EGLBoolean KHR_gl_texture_3D_image;
  45    EGLBoolean KHR_gl_renderbuffer_image;
  46
  47    char String[_EGL_MAX_EXTENSIONS_LEN];
  48 };
  49
  50
  51 struct _egl_display
  52 {
  53    /* used to link displays */
  54    _EGLDisplay *Next;
  55
  56    EGLNativeDisplayType NativeDisplay;
  57
  58    EGLBoolean Initialized; /**< True if the display is initialized */
  59    _EGLDriver *Driver;
  60    void *DriverData; /* private to driver */
  61
  62    int APImajor, APIminor; /**< as returned by eglInitialize() */
  63    char Version[1000];     /**< initialized from APImajor/minor, DriverName */
  64
  65    /** Bitmask of supported APIs (EGL_xx_BIT) set by the driver during init */
  66    EGLint ClientAPIsMask;
  67    char ClientAPIs[1000];   /**< updated by eglQueryString */
  68
  69    _EGLExtensions Extensions;
  70
  71    int LargestPbuffer;
  72
  73    EGLint NumScreens;
  74    _EGLScreen **Screens;  /* array [NumScreens] */
  75
  76    EGLint MaxConfigs;
  77    EGLint NumConfigs;
  78    _EGLConfig **Configs;  /* array [NumConfigs] of ptr to _EGLConfig */
  79
  80    /* lists of resources */
  81    _EGLResource *ResourceLists[_EGL_NUM_RESOURCES];
  82 };
  83
  84
  85 extern void
  86 _eglFiniDisplay(void);
  87
  88
  89 extern _EGLDisplay *
  90 _eglNewDisplay(EGLNativeDisplayType displayName);
  91
  92
  93 extern EGLDisplay
  94 _eglLinkDisplay(_EGLDisplay *dpy);
  95
  96
  97 extern void
  98 _eglUnlinkDisplay(_EGLDisplay *dpy);
  99
 100
 101 extern _EGLDisplay *
 102 _eglFindDisplay(EGLNativeDisplayType nativeDisplay);
 103
 104
 105 PUBLIC void
 106 _eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *dpy);
 107
 108
 109 PUBLIC void
 110 _eglCleanupDisplay(_EGLDisplay *disp);
 111
 112
 113 #ifndef _EGL_SKIP_HANDLE_CHECK
 114
 115
 116 extern EGLBoolean
 117 _eglCheckDisplayHandle(EGLDisplay dpy);
 118
 119
 120 PUBLIC EGLBoolean
 121 _eglCheckResource(void *res, _EGLResourceType type, _EGLDisplay *dpy);
 122
 123
 124 #else /* !_EGL_SKIP_HANDLE_CHECK */
 125
 126 /* Only do a quick check.  This is NOT standard compliant. */
 127
 128 static INLINE EGLBoolean
 129 _eglCheckDisplayHandle(EGLDisplay dpy)
 130 {
 131    return ((_EGLDisplay *) dpy != NULL);
 132 }
 133
 134
 135 static INLINE EGLBoolean
 136 _eglCheckResource(void *res, _EGLResourceType type, _EGLDisplay *dpy);
 137 {
 138    return (((_EGLResource *) res)->Display == dpy);
 139 }
 140
 141
 142 #endif /* _EGL_SKIP_HANDLE_CHECK */
 143
 144
 145 /**
 146  * Lookup a handle to find the linked display.
 147  * Return NULL if the handle has no corresponding linked display.
 148  */
 149 static INLINE _EGLDisplay *
 150 _eglLookupDisplay(EGLDisplay display)
 151 {
 152    _EGLDisplay *dpy = (_EGLDisplay *) display;
 153    if (!_eglCheckDisplayHandle(display))
 154       dpy = NULL;
 155    return dpy;
 156 }
 157
 158
 159 /**
 160  * Return the handle of a linked display, or EGL_NO_DISPLAY.
 161  */
 162 static INLINE EGLDisplay
 163 _eglGetDisplayHandle(_EGLDisplay *dpy)
 164 {
 165    return (EGLDisplay) ((dpy) ? dpy : EGL_NO_DISPLAY);
 166 }
 167
 168
 169 /**
 170  * Return true if the display is linked.
 171  */
 172 static INLINE EGLBoolean
 173 _eglIsDisplayLinked(_EGLDisplay *dpy)
 174 {
 175    return (EGLBoolean) (_eglGetDisplayHandle(dpy) != EGL_NO_DISPLAY);
 176 }
 177
 178
 179 extern void
 180 _eglLinkResource(_EGLResource *res, _EGLResourceType type, _EGLDisplay *dpy);
 181
 182
 183 extern void
 184 _eglUnlinkResource(_EGLResource *res, _EGLResourceType type);
 185
 186
 187 /**
 188  * Return true if the resource is linked.
 189  */
 190 static INLINE EGLBoolean
 191 _eglIsResourceLinked(_EGLResource *res)
 192 {
 193    return res->IsLinked;
 194 }
 195
 196
 197 #endif /* EGLDISPLAY_INCLUDED */