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 "egldefines.h"
  10 #include "eglcontext.h"
  11 #include "eglsurface.h"
  12
  13
  14 /**
  15  * Optional EGL extensions info.
  16  */
  17 struct _egl_extensions
  18 {
  19    EGLBoolean MESA_screen_surface;
  20    EGLBoolean MESA_copy_context;
  21
  22    char String[_EGL_MAX_EXTENSIONS_LEN];
  23 };
  24
  25
  26 struct _egl_display
  27 {
  28    /* used to link displays */
  29    _EGLDisplay *Next;
  30
  31    EGLNativeDisplayType NativeDisplay;
  32
  33    const char *DriverName;
  34    _EGLDriver *Driver;
  35    void *DriverData; /* private to driver */
  36
  37    int APImajor, APIminor; /**< as returned by eglInitialize() */
  38    char Version[1000];     /**< initialized from APImajor/minor, DriverName */
  39
  40    /** Bitmask of supported APIs (EGL_xx_BIT) set by the driver during init */
  41    EGLint ClientAPIsMask;
  42    char ClientAPIs[1000];   /**< updated by eglQueryString */
  43
  44    _EGLExtensions Extensions;
  45
  46    int LargestPbuffer;
  47
  48    EGLint NumScreens;
  49    _EGLScreen **Screens;  /* array [NumScreens] */
  50
  51    EGLint NumConfigs;
  52    _EGLConfig **Configs;  /* array [NumConfigs] of ptr to _EGLConfig */
  53
  54    /* lists of linked contexts and surface */
  55    _EGLContext *ContextList;
  56    _EGLSurface *SurfaceList;
  57
  58 #ifdef _EGL_PLATFORM_X
  59    Display *Xdpy;
  60 #endif
  61 };
  62
  63
  64 extern void
  65 _eglFiniDisplay(void);
  66
  67
  68 extern _EGLDisplay *
  69 _eglNewDisplay(NativeDisplayType displayName);
  70
  71
  72 extern EGLDisplay
  73 _eglLinkDisplay(_EGLDisplay *dpy);
  74
  75
  76 extern void
  77 _eglUnlinkDisplay(_EGLDisplay *dpy);
  78
  79
  80 extern _EGLDisplay *
  81 _eglFindDisplay(NativeDisplayType nativeDisplay);
  82
  83
  84 extern void
  85 _eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *dpy);
  86
  87
  88 extern void
  89 _eglCleanupDisplay(_EGLDisplay *disp);
  90
  91
  92 extern EGLContext
  93 _eglLinkContext(_EGLContext *ctx, _EGLDisplay *dpy);
  94
  95
  96 extern void
  97 _eglUnlinkContext(_EGLContext *ctx);
  98
  99
 100 extern EGLSurface
 101 _eglLinkSurface(_EGLSurface *surf, _EGLDisplay *dpy);
 102
 103
 104 extern void
 105 _eglUnlinkSurface(_EGLSurface *surf);
 106
 107
 108 /**
 109  * Lookup a handle to find the linked display.
 110  * Return NULL if the handle has no corresponding linked display.
 111  */
 112 static INLINE _EGLDisplay *
 113 _eglLookupDisplay(EGLDisplay display)
 114 {
 115    _EGLDisplay *dpy = (_EGLDisplay *) display;
 116    return dpy;
 117 }
 118
 119
 120 /**
 121  * Return the handle of a linked display, or EGL_NO_DISPLAY.
 122  */
 123 static INLINE EGLDisplay
 124 _eglGetDisplayHandle(_EGLDisplay *dpy)
 125 {
 126    return (EGLDisplay) ((dpy) ? dpy : EGL_NO_DISPLAY);
 127 }
 128
 129
 130 /**
 131  * Return true if the display is linked.
 132  */
 133 static INLINE EGLBoolean
 134 _eglIsDisplayLinked(_EGLDisplay *dpy)
 135 {
 136    return (EGLBoolean) (_eglGetDisplayHandle(dpy) != EGL_NO_DISPLAY);
 137 }
 138
 139
 140 /**
 141  * Lookup a handle to find the linked context.
 142  * Return NULL if the handle has no corresponding linked context.
 143  */
 144 static INLINE _EGLContext *
 145 _eglLookupContext(EGLContext context, _EGLDisplay *dpy)
 146 {
 147    _EGLContext *ctx = (_EGLContext *) context;
 148    return (ctx && ctx->Display) ? ctx : NULL;
 149 }
 150
 151
 152 /**
 153  * Return the handle of a linked context, or EGL_NO_CONTEXT.
 154  */
 155 static INLINE EGLContext
 156 _eglGetContextHandle(_EGLContext *ctx)
 157 {
 158    return (EGLContext) ((ctx && ctx->Display) ? ctx : EGL_NO_CONTEXT);
 159 }
 160
 161
 162 /**
 163  * Return true if the context is linked to a display.
 164  */
 165 static INLINE EGLBoolean
 166 _eglIsContextLinked(_EGLContext *ctx)
 167 {
 168    return (EGLBoolean) (_eglGetContextHandle(ctx) != EGL_NO_CONTEXT);
 169 }
 170
 171
 172 /**
 173  * Lookup a handle to find the linked surface.
 174  * Return NULL if the handle has no corresponding linked surface.
 175  */
 176 static INLINE _EGLSurface *
 177 _eglLookupSurface(EGLSurface surface, _EGLDisplay *dpy)
 178 {
 179    _EGLSurface *surf = (_EGLSurface *) surface;
 180    return (surf && surf->Display) ? surf : NULL;
 181 }
 182
 183
 184 /**
 185  * Return the handle of a linked surface, or EGL_NO_SURFACE.
 186  */
 187 static INLINE EGLSurface
 188 _eglGetSurfaceHandle(_EGLSurface *surf)
 189 {
 190    return (EGLSurface) ((surf && surf->Display) ? surf : EGL_NO_SURFACE);
 191 }
 192
 193
 194 /**
 195  * Return true if the surface is linked to a display.
 196  */
 197 static INLINE EGLBoolean
 198 _eglIsSurfaceLinked(_EGLSurface *surf)
 199 {
 200    return (EGLBoolean) (_eglGetSurfaceHandle(surf) != EGL_NO_SURFACE);
 201 }
 202
 203
 204 /**
 205  * Cast an unsigned int to a pointer.
 206  */
 207 static INLINE void *
 208 _eglUIntToPointer(unsigned int v)
 209 {
 210    return (void *) ((uintptr_t) v);
 211 }
 212
 213
 214 /**
 215  * Cast a pointer to an unsigned int.  The pointer must be one that is
 216  * returned by _eglUIntToPointer.
 217  */
 218 static INLINE unsigned int
 219 _eglPointerToUInt(const void *p)
 220 {
 221    return (unsigned int) ((uintptr_t) p);
 222 }
 223
 224
 225 #endif /* EGLDISPLAY_INCLUDED */