egl: move a few small functions into new eglmisc.[ch] files

1 files changed, 108 insertions, 0 deletions

diff --git a/src/egl/main/eglmisc.c b/src/egl/main/eglmisc.c
new file mode 100644
index 0000000..fb32544
--- /dev/null
+++ b/src/egl/main/eglmisc.c
@@ -0,0 +1,108 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
+ * 
+ **************************************************************************/
+
+
+/**
+ * Small/misc EGL functions
+ */
+
+
+#include <assert.h>
+#include <string.h>
+#include "eglglobals.h"
+#include "eglmisc.h"
+
+
+/**
+ * Examine the individual extension enable/disable flags and recompute
+ * the driver's Extensions string.
+ */
+static void
+_eglUpdateExtensionsString(_EGLDriver *drv)
+{
+   drv->Extensions.String[0] = 0;
+
+   if (drv->Extensions.MESA_screen_surface)
+      strcat(drv->Extensions.String, "EGL_MESA_screen_surface ");
+   if (drv->Extensions.MESA_copy_context)
+      strcat(drv->Extensions.String, "EGL_MESA_copy_context ");
+   assert(strlen(drv->Extensions.String) < _EGL_MAX_EXTENSIONS_LEN);
+}
+
+
+
+const char *
+_eglQueryString(_EGLDriver *drv, EGLDisplay dpy, EGLint name)
+{
+   (void) drv;
+   (void) dpy;
+   switch (name) {
+   case EGL_VENDOR:
+      return _EGL_VENDOR_STRING;
+   case EGL_VERSION:
+      return drv->Version;
+   case EGL_EXTENSIONS:
+      _eglUpdateExtensionsString(drv);
+      return drv->Extensions.String;
+#ifdef EGL_VERSION_1_2
+   case EGL_CLIENT_APIS:
+      /* XXX need to initialize somewhere */
+      return drv->ClientAPIs;
+#endif
+   default:
+      _eglError(EGL_BAD_PARAMETER, "eglQueryString");
+      return NULL;
+   }
+}
+
+
+EGLBoolean
+_eglWaitGL(_EGLDriver *drv, EGLDisplay dpy)
+{
+   /* just a placeholder */
+   (void) drv;
+   (void) dpy;
+   return EGL_TRUE;
+}
+
+
+EGLBoolean
+_eglWaitNative(_EGLDriver *drv, EGLDisplay dpy, EGLint engine)
+{
+   /* just a placeholder */
+   (void) drv;
+   (void) dpy;
+   switch (engine) {
+   case EGL_CORE_NATIVE_ENGINE:
+      break;
+   default:
+      _eglError(EGL_BAD_PARAMETER, "eglWaitNative(engine)");
+      return EGL_FALSE;
+   }
+
+   return EGL_TRUE;
+}