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    EGLBoolean NOK_swap_region;
  50    EGLBoolean NOK_texture_from_pixmap;
  51
  52    char String[_EGL_MAX_EXTENSIONS_LEN];
  53 };
  54
  55
  56 struct _egl_display
  57 {
  58    /* used to link displays */
  59    _EGLDisplay *Next;
  60
  61    _EGLMutex Mutex;
  62
  63    EGLNativeDisplayType NativeDisplay;
  64
  65    EGLBoolean Initialized; /**< True if the display is initialized */
  66    _EGLDriver *Driver;
  67    void *DriverData; /* private to driver */
  68
  69    int APImajor, APIminor; /**< as returned by eglInitialize() */
  70    char Version[1000];     /**< initialized from APImajor/minor, DriverName */
  71
  72    /** Bitmask of supported APIs (EGL_xx_BIT) set by the driver during init */
  73    EGLint ClientAPIsMask;
  74    char ClientAPIs[1000];   /**< updated by eglQueryString */
  75
  76    _EGLExtensions Extensions;
  77
  78    EGLint NumScreens;
  79    _EGLScreen **Screens;  /* array [NumScreens] */
  80
  81    EGLint MaxConfigs;
  82    EGLint NumConfigs;
  83    _EGLConfig **Configs;  /* array [NumConfigs] of ptr to _EGLConfig */
  84
  85    /* lists of resources */
  86    _EGLResource *ResourceLists[_EGL_NUM_RESOURCES];
  87 };
  88
  89
  90 extern void
  91 _eglFiniDisplay(void);
  92
  93
  94 extern _EGLDisplay *
  95 _eglFindDisplay(EGLNativeDisplayType displayName);
  96
  97
  98 PUBLIC void
  99 _eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *dpy);
 100
 101
 102 PUBLIC void
 103 _eglCleanupDisplay(_EGLDisplay *disp);
 104
 105
 106 extern EGLBoolean
 107 _eglCheckDisplayHandle(EGLDisplay dpy);
 108
 109
 110 PUBLIC EGLBoolean
 111 _eglCheckResource(void *res, _EGLResourceType type, _EGLDisplay *dpy);
 112
 113
 114 /**
 115  * Lookup a handle to find the linked display.
 116  * Return NULL if the handle has no corresponding linked display.
 117  */
 118 static INLINE _EGLDisplay *
 119 _eglLookupDisplay(EGLDisplay display)
 120 {
 121    _EGLDisplay *dpy = (_EGLDisplay *) display;
 122    if (!_eglCheckDisplayHandle(display))
 123       dpy = NULL;
 124    return dpy;
 125 }
 126
 127
 128 /**
 129  * Return the handle of a linked display, or EGL_NO_DISPLAY.
 130  */
 131 static INLINE EGLDisplay
 132 _eglGetDisplayHandle(_EGLDisplay *dpy)
 133 {
 134    return (EGLDisplay) ((dpy) ? dpy : EGL_NO_DISPLAY);
 135 }
 136
 137
 138 extern void
 139 _eglLinkResource(_EGLResource *res, _EGLResourceType type, _EGLDisplay *dpy);
 140
 141
 142 extern void
 143 _eglUnlinkResource(_EGLResource *res, _EGLResourceType type);
 144
 145
 146 /**
 147  * Return true if the resource is linked.
 148  */
 149 static INLINE EGLBoolean
 150 _eglIsResourceLinked(_EGLResource *res)
 151 {
 152    return res->IsLinked;
 153 }
 154
 155
 156 #endif /* EGLDISPLAY_INCLUDED */