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_platform_type {
  11    _EGL_PLATFORM_WINDOWS,
  12    _EGL_PLATFORM_X11,
  13    _EGL_PLATFORM_DRM,
  14    _EGL_PLATFORM_FBDEV,
  15
  16    _EGL_NUM_PLATFORMS,
  17    _EGL_INVALID_PLATFORM = -1
  18 };
  19 typedef enum _egl_platform_type _EGLPlatformType;
  20
  21
  22 enum _egl_resource_type {
  23    _EGL_RESOURCE_CONTEXT,
  24    _EGL_RESOURCE_SURFACE,
  25    _EGL_RESOURCE_IMAGE,
  26
  27    _EGL_NUM_RESOURCES
  28 };
  29 /* this cannot and need not go into egltypedefs.h */
  30 typedef enum _egl_resource_type _EGLResourceType;
  31
  32
  33 /**
  34  * A resource of a display.
  35  */
  36 struct _egl_resource
  37 {
  38    /* which display the resource belongs to */
  39    _EGLDisplay *Display;
  40    EGLBoolean IsLinked;
  41
  42    /* used to link resources of the same type */
  43    _EGLResource *Next;
  44 };
  45
  46
  47 /**
  48  * Optional EGL extensions info.
  49  */
  50 struct _egl_extensions
  51 {
  52    EGLBoolean MESA_screen_surface;
  53    EGLBoolean MESA_copy_context;
  54    EGLBoolean MESA_drm_display;
  55    EGLBoolean KHR_image_base;
  56    EGLBoolean KHR_image_pixmap;
  57    EGLBoolean KHR_vg_parent_image;
  58    EGLBoolean KHR_gl_texture_2D_image;
  59    EGLBoolean KHR_gl_texture_cubemap_image;
  60    EGLBoolean KHR_gl_texture_3D_image;
  61    EGLBoolean KHR_gl_renderbuffer_image;
  62    EGLBoolean NOK_swap_region;
  63    EGLBoolean NOK_texture_from_pixmap;
  64
  65    char String[_EGL_MAX_EXTENSIONS_LEN];
  66 };
  67
  68
  69 struct _egl_display
  70 {
  71    /* used to link displays */
  72    _EGLDisplay *Next;
  73
  74    _EGLMutex Mutex;
  75
  76    _EGLPlatformType Platform;
  77    void *PlatformDisplay;
  78
  79    EGLBoolean Initialized; /**< True if the display is initialized */
  80    _EGLDriver *Driver;
  81    void *DriverData; /* private to driver */
  82
  83    int APImajor, APIminor; /**< as returned by eglInitialize() */
  84    char Version[1000];     /**< initialized from APImajor/minor, DriverName */
  85
  86    /** Bitmask of supported APIs (EGL_xx_BIT) set by the driver during init */
  87    EGLint ClientAPIsMask;
  88    char ClientAPIs[1000];   /**< updated by eglQueryString */
  89
  90    _EGLExtensions Extensions;
  91
  92    EGLint NumScreens;
  93    _EGLScreen **Screens;  /* array [NumScreens] */
  94
  95    EGLint MaxConfigs;
  96    EGLint NumConfigs;
  97    _EGLConfig **Configs;  /* array [NumConfigs] of ptr to _EGLConfig */
  98
  99    /* lists of resources */
 100    _EGLResource *ResourceLists[_EGL_NUM_RESOURCES];
 101 };
 102
 103
 104 extern _EGLPlatformType
 105 _eglGetNativePlatform(void);
 106
 107
 108 extern void
 109 _eglFiniDisplay(void);
 110
 111
 112 extern _EGLDisplay *
 113 _eglFindDisplay(_EGLPlatformType plat, void *plat_dpy);
 114
 115
 116 PUBLIC void
 117 _eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *dpy);
 118
 119
 120 PUBLIC void
 121 _eglCleanupDisplay(_EGLDisplay *disp);
 122
 123
 124 extern EGLBoolean
 125 _eglCheckDisplayHandle(EGLDisplay dpy);
 126
 127
 128 PUBLIC EGLBoolean
 129 _eglCheckResource(void *res, _EGLResourceType type, _EGLDisplay *dpy);
 130
 131
 132 /**
 133  * Lookup a handle to find the linked display.
 134  * Return NULL if the handle has no corresponding linked display.
 135  */
 136 static INLINE _EGLDisplay *
 137 _eglLookupDisplay(EGLDisplay display)
 138 {
 139    _EGLDisplay *dpy = (_EGLDisplay *) display;
 140    if (!_eglCheckDisplayHandle(display))
 141       dpy = NULL;
 142    return dpy;
 143 }
 144
 145
 146 /**
 147  * Return the handle of a linked display, or EGL_NO_DISPLAY.
 148  */
 149 static INLINE EGLDisplay
 150 _eglGetDisplayHandle(_EGLDisplay *dpy)
 151 {
 152    return (EGLDisplay) ((dpy) ? dpy : EGL_NO_DISPLAY);
 153 }
 154
 155
 156 extern void
 157 _eglLinkResource(_EGLResource *res, _EGLResourceType type, _EGLDisplay *dpy);
 158
 159
 160 extern void
 161 _eglUnlinkResource(_EGLResource *res, _EGLResourceType type);
 162
 163
 164 /**
 165  * Return true if the resource is linked.
 166  */
 167 static INLINE EGLBoolean
 168 _eglIsResourceLinked(_EGLResource *res)
 169 {
 170    return res->IsLinked;
 171 }
 172
 173
 174 #endif /* EGLDISPLAY_INCLUDED */