+/**************************************************************************
+ *
+ * Copyright 2008 VMware, Inc.
+ * Copyright 2009-2010 Chia-I Wu <olvaffe@gmail.com>
+ * Copyright 2010-2011 LunarG, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+
#include <stdlib.h>
+#include <assert.h>
#include "eglglobals.h"
-#include "egllog.h"
+#include "egldisplay.h"
+#include "egldriver.h"
+#include "eglmutex.h"
-struct _egl_global _eglGlobal =
-{
- EGL_FALSE
-};
-/**
- * Init the fields in the _eglGlobal struct
- * May be safely called more than once.
- */
-void
-_eglInitGlobals(void)
+static _EGLMutex _eglGlobalMutex = _EGL_MUTEX_INITIALIZER;
+
+struct _egl_global _eglGlobal =
{
- if (!_eglGlobal.Initialized) {
- _eglGlobal.Displays = _eglNewHashTable();
- _eglGlobal.Surfaces = _eglNewHashTable();
- _eglGlobal.FreeScreenHandle = 1;
- _eglGlobal.Initialized = EGL_TRUE;
+ &_eglGlobalMutex, /* Mutex */
+ NULL, /* DisplayList */
+ 2, /* NumAtExitCalls */
+ {
+ /* default AtExitCalls, called in reverse order */
+ _eglUnloadDrivers, /* always called last */
+ _eglFiniDisplay
+ },
- _eglGlobal.ClientAPIsMask = 0x0;
+ /* ClientExtensions */
+ {
+ true, /* EGL_EXT_client_extensions */
+ true, /* EGL_EXT_platform_base */
+ true, /* EGL_EXT_platform_x11 */
+ true, /* EGL_EXT_platform_wayland */
+ true /* EGL_MESA_platform_gbm */
+ },
- if (!_eglInitCurrent())
- _eglLog(_EGL_FATAL, "failed to initialize \"current\" system");
- }
+ /* ClientExtensionsString */
+ "EGL_EXT_client_extensions"
+ " EGL_EXT_platform_base"
+ " EGL_EXT_platform_x11"
+ " EGL_EXT_platform_wayland"
+ " EGL_MESA_platform_gbm"
+};
+
+
+static void
+_eglAtExit(void)
+{
+ EGLint i;
+ for (i = _eglGlobal.NumAtExitCalls - 1; i >= 0; i--)
+ _eglGlobal.AtExitCalls[i]();
}
-/**
- * Should call this via an atexit handler.
- */
void
-_eglDestroyGlobals(void)
+_eglAddAtExitCall(void (*func)(void))
{
- _eglFiniCurrent();
- /* XXX TODO walk over table entries, deleting each */
- _eglDeleteHashTable(_eglGlobal.Displays);
- _eglDeleteHashTable(_eglGlobal.Surfaces);
+ if (func) {
+ static EGLBoolean registered = EGL_FALSE;
+
+ _eglLockMutex(_eglGlobal.Mutex);
+
+ if (!registered) {
+ atexit(_eglAtExit);
+ registered = EGL_TRUE;
+ }
+
+ assert(_eglGlobal.NumAtExitCalls < ARRAY_SIZE(_eglGlobal.AtExitCalls));
+ _eglGlobal.AtExitCalls[_eglGlobal.NumAtExitCalls++] = func;
+
+ _eglUnlockMutex(_eglGlobal.Mutex);
+ }
}