egl/main: use c11/threads' mutex directly

[mesa.git] / src / egl / main / eglglobals.c

diff --git a/src/egl/main/eglglobals.c b/src/egl/main/eglglobals.c
index 870316865007ecd6e16ea0dd3a74bf52d405758a..129bf29f1e95bb65d3d1d94403dcc9a11fac9ccc 100644 (file)
--- a/src/egl/main/eglglobals.c
+++ b/src/egl/main/eglglobals.c
@@ -1,13 +1,100 @@
+/**************************************************************************
+ *
+ * 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 "c11/threads.h"
+
 #include "eglglobals.h"
 #include "egldisplay.h"
-#include "egllog.h"
+#include "egldriver.h"
+
+
+static mtx_t _eglGlobalMutex = _MTX_INITIALIZER_NP;
 
 struct _egl_global _eglGlobal =
 {
-   1,                      /* FreeScreenHandle */
-   0x0,                    /* ClientAPIsMask */
-   { 0x0 },                /* ClientAPIs */
-   0,                      /* NumDrivers */
-   { NULL },               /* Drivers */
+   &_eglGlobalMutex,       /* Mutex */
+   NULL,                   /* DisplayList */
+   2,                      /* NumAtExitCalls */
+   {
+      /* default AtExitCalls, called in reverse order */
+      _eglUnloadDrivers, /* always called last */
+      _eglFiniDisplay
+   },
+
+   /* 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 */
+      true, /* EGL_KHR_client_get_all_proc_addresses */
+   },
+
+   /* ClientExtensionsString */
+   "EGL_EXT_client_extensions"
+   " EGL_EXT_platform_base"
+   " EGL_EXT_platform_x11"
+   " EGL_EXT_platform_wayland"
+   " EGL_MESA_platform_gbm"
+   " EGL_KHR_client_get_all_proc_addresses"
 };
+
+
+static void
+_eglAtExit(void)
+{
+   EGLint i;
+   for (i = _eglGlobal.NumAtExitCalls - 1; i >= 0; i--)
+      _eglGlobal.AtExitCalls[i]();
+}
+
+
+void
+_eglAddAtExitCall(void (*func)(void))
+{
+   if (func) {
+      static EGLBoolean registered = EGL_FALSE;
+
+      mtx_lock(_eglGlobal.Mutex);
+
+      if (!registered) {
+         atexit(_eglAtExit);
+         registered = EGL_TRUE;
+      }
+
+      assert(_eglGlobal.NumAtExitCalls < ARRAY_SIZE(_eglGlobal.AtExitCalls));
+      _eglGlobal.AtExitCalls[_eglGlobal.NumAtExitCalls++] = func;
+
+      mtx_unlock(_eglGlobal.Mutex);
+   }
+}