1 /*
   2  * Copyright (c) 1998, 2003, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #ifndef _AWT_GRAPHICSENV_H_
  27 #define _AWT_GRAPHICSENV_H_
  28 
  29 #include <jni_util.h>
  30 
  31 #ifndef HEADLESS
  32 #define MITSHM
  33 #endif /* !HEADLESS */
  34 
  35 #define UNSET_MITSHM (-2)
  36 #define NOEXT_MITSHM (-1)
  37 #define CANT_USE_MITSHM (0)
  38 #define CAN_USE_MITSHM (1)
  39 
  40 #ifdef MITSHM
  41 
  42 #include <sys/ipc.h>
  43 #include <sys/shm.h>
  44 #include <X11/extensions/XShm.h>
  45 #ifndef X_ShmAttach
  46 #include <X11/Xmd.h>
  47 #include <X11/extensions/shmproto.h>
  48 #endif
  49 
  50 #define MITSHM_PERM_COMMON (0666)
  51 #define MITSHM_PERM_OWNER  (0600)
  52 
  53 extern int XShmQueryExtension();
  54 
  55 void TryInitMITShm(JNIEnv *env, jint *shmExt, jint *shmPixmaps);
  56 void resetXShmAttachFailed();
  57 jboolean isXShmAttachFailed();
  58 
  59 #endif /* MITSHM */
  60 
  61 /* fieldIDs for X11GraphicsConfig fields that may be accessed from C */
  62 struct X11GraphicsConfigIDs {
  63     jfieldID aData;
  64     jfieldID bitsPerPixel;
  65     jfieldID screen;
  66 };
  67 
  68 /* fieldIDs for X11GraphicsDevice fields that may be accessed from C */
  69 struct X11GraphicsDeviceIDs {
  70     jfieldID screen;
  71 };
  72 
  73 #endif /* _AWT_GRAPHICSENV_H_ */