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