src/egl/main/egldisplay.h

   1 #ifndef EGLDISPLAY_INCLUDED
   2 #define EGLDISPLAY_INCLUDED
   3
   4 #ifdef _EGL_PLATFORM_X
   5 #include <X11/Xlib.h>
   6 #endif
   7
   8 #include "egltypedefs.h"
   9 #include "eglhash.h"
  10 #include "egldefines.h"
  11
  12
  13 /**
  14  * Optional EGL extensions info.
  15  */
  16 struct _egl_extensions
  17 {
  18    EGLBoolean MESA_screen_surface;
  19    EGLBoolean MESA_copy_context;
  20
  21    char String[_EGL_MAX_EXTENSIONS_LEN];
  22 };
  23
  24
  25 struct _egl_display
  26 {
  27    EGLNativeDisplayType NativeDisplay;
  28    EGLDisplay Handle;
  29
  30    const char *DriverName;
  31    _EGLDriver *Driver;
  32    void *DriverData; /* private to driver */
  33
  34    int APImajor, APIminor; /**< as returned by eglInitialize() */
  35    char Version[1000];     /**< initialized from APImajor/minor, DriverName */
  36
  37    /** Bitmask of supported APIs (EGL_xx_BIT) set by the driver during init */
  38    EGLint ClientAPIsMask;
  39    char ClientAPIs[1000];   /**< updated by eglQueryString */
  40
  41    _EGLExtensions Extensions;
  42
  43    int LargestPbuffer;
  44
  45    EGLint NumScreens;
  46    _EGLScreen **Screens;  /* array [NumScreens] */
  47
  48    EGLint NumConfigs;
  49    _EGLConfig **Configs;  /* array [NumConfigs] of ptr to _EGLConfig */
  50
  51    /* lists of linked contexts and surface */
  52    _EGLContext *ContextList;
  53    _EGLSurface *SurfaceList;
  54
  55    /* hash table to map surfaces to handles */
  56    _EGLHashtable *SurfaceHash;
  57
  58 #ifdef _EGL_PLATFORM_X
  59    Display *Xdpy;
  60 #endif
  61 };
  62
  63
  64 extern _EGLDisplay *
  65 _eglNewDisplay(NativeDisplayType displayName);
  66
  67
  68 extern EGLDisplay
  69 _eglLinkDisplay(_EGLDisplay *dpy);
  70
  71
  72 extern void
  73 _eglUnlinkDisplay(_EGLDisplay *dpy);
  74
  75
  76 extern EGLDisplay
  77 _eglGetDisplayHandle(_EGLDisplay *display);
  78
  79
  80 extern _EGLDisplay *
  81 _eglLookupDisplay(EGLDisplay dpy);
  82
  83
  84 /**
  85  * Return true if the display is linked.
  86  */
  87 static INLINE EGLBoolean
  88 _eglIsDisplayLinked(_EGLDisplay *dpy)
  89 {
  90    return (EGLBoolean) (_eglGetDisplayHandle(dpy) != EGL_NO_DISPLAY);
  91 }
  92
  93
  94 extern _EGLDisplay *
  95 _eglFindDisplay(NativeDisplayType nativeDisplay);
  96
  97
  98 extern void
  99 _eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *dpy);
 100
 101
 102 extern void
 103 _eglCleanupDisplay(_EGLDisplay *disp);
 104
 105
 106 extern EGLContext
 107 _eglLinkContext(_EGLContext *ctx, _EGLDisplay *dpy);
 108
 109
 110 extern void
 111 _eglUnlinkContext(_EGLContext *ctx);
 112
 113
 114 extern EGLContext
 115 _eglGetContextHandle(_EGLContext *ctx);
 116
 117
 118 extern _EGLContext *
 119 _eglLookupContext(EGLContext ctx, _EGLDisplay *dpy);
 120
 121
 122 /**
 123  * Return true if the context is linked to a display.
 124  */
 125 static INLINE EGLBoolean
 126 _eglIsContextLinked(_EGLContext *ctx)
 127 {
 128    return (EGLBoolean) (_eglGetContextHandle(ctx) != EGL_NO_CONTEXT);
 129 }
 130
 131 extern EGLSurface
 132 _eglLinkSurface(_EGLSurface *surf, _EGLDisplay *dpy);
 133
 134
 135 extern void
 136 _eglUnlinkSurface(_EGLSurface *surf);
 137
 138
 139 extern EGLSurface
 140 _eglGetSurfaceHandle(_EGLSurface *);
 141
 142
 143 extern _EGLSurface *
 144 _eglLookupSurface(EGLSurface surf, _EGLDisplay *dpy);
 145
 146
 147 /**
 148  * Return true if the surface is linked to a display.
 149  */
 150 static INLINE EGLBoolean
 151 _eglIsSurfaceLinked(_EGLSurface *surf)
 152 {
 153    return (EGLBoolean) (_eglGetSurfaceHandle(surf) != EGL_NO_SURFACE);
 154 }
 155
 156
 157 /**
 158  * Cast an unsigned int to a pointer.
 159  */
 160 static INLINE void *
 161 _eglUIntToPointer(unsigned int v)
 162 {
 163    return (void *) ((uintptr_t) v);
 164 }
 165
 166
 167 /**
 168  * Cast a pointer to an unsigned int.  The pointer must be one that is
 169  * returned by _eglUIntToPointer.
 170  */
 171 static INLINE unsigned int
 172 _eglPointerToUInt(const void *p)
 173 {
 174    return (unsigned int) ((uintptr_t) p);
 175 }
 176
 177
 178 #endif /* EGLDISPLAY_INCLUDED */