+/**
+ * Unlock a display.
+ */
+static INLINE void
+_eglUnlockDisplay(_EGLDisplay *dpy)
+{
+ _eglUnlockMutex(&dpy->Mutex);
+}
+
+
+/**
+ * This is typically the first EGL function that an application calls.
+ * It associates a private _EGLDisplay object to the native display.
+ */
+EGLDisplay EGLAPIENTRY
+eglGetDisplay(EGLNativeDisplayType nativeDisplay)
+{
+ _EGLDisplay *dpy = _eglFindDisplay(nativeDisplay);
+ return _eglGetDisplayHandle(dpy);
+}
+
+
+/**
+ * This is typically the second EGL function that an application calls.
+ * Here we load/initialize the actual hardware driver.
+ */
+EGLBoolean EGLAPIENTRY
+eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
+{
+ _EGLDisplay *disp = _eglLockDisplay(dpy);
+ EGLint major_int = 0, minor_int = 0;
+
+ if (!disp)
+ RETURN_EGL_ERROR(NULL, EGL_BAD_DISPLAY, EGL_FALSE);
+
+ if (!disp->Initialized) {
+ _EGLDriver *drv = disp->Driver;
+
+ if (!drv) {
+ _eglPreloadDrivers();
+ drv = _eglMatchDriver(disp);
+ /* Initialize the particular display now */
+ if (drv && !drv->API.Initialize(drv, disp, &major_int, &minor_int))
+ RETURN_EGL_ERROR(disp, EGL_NOT_INITIALIZED, EGL_FALSE);
+ }
+ if (!drv)
+ /* Load and initialize the first default driver that works */
+ drv = _eglLoadDefaultDriver(disp, &major_int, &minor_int);
+ if (!drv)
+ RETURN_EGL_ERROR(disp, EGL_NOT_INITIALIZED, EGL_FALSE);
+
+ disp->APImajor = major_int;
+ disp->APIminor = minor_int;
+ _eglsnprintf(disp->Version, sizeof(disp->Version),
+ "%d.%d (%s)", major_int, minor_int, drv->Name);
+
+ /* limit to APIs supported by core */
+ disp->ClientAPIsMask &= _EGL_API_ALL_BITS;
+
+ disp->Driver = drv;
+ disp->Initialized = EGL_TRUE;
+ } else {
+ major_int = disp->APImajor;
+ minor_int = disp->APIminor;
+ }
+
+ /* Update applications version of major and minor if not NULL */
+ if ((major != NULL) && (minor != NULL)) {
+ *major = major_int;
+ *minor = minor_int;
+ }
+
+ RETURN_EGL_SUCCESS(disp, EGL_TRUE);
+}
+
+
+EGLBoolean EGLAPIENTRY
+eglTerminate(EGLDisplay dpy)
+{
+ _EGLDisplay *disp = _eglLockDisplay(dpy);
+
+ if (!disp)
+ RETURN_EGL_ERROR(NULL, EGL_BAD_DISPLAY, EGL_FALSE);
+
+ if (disp->Initialized) {
+ _EGLDriver *drv = disp->Driver;
+
+ drv->API.Terminate(drv, disp);
+ /* do not reset disp->Driver */
+ disp->Initialized = EGL_FALSE;
+ }
+
+ RETURN_EGL_SUCCESS(disp, EGL_TRUE);
+}