1 /*
   2  * Copyright (c) 1999, 2001, 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 #ifdef HEADLESS
  27     #error This file should not be included in headless library
  28 #endif
  29 
  30 #include <jni.h>
  31 #include <X11/Xlib.h>
  32 #include <X11/Xutil.h>
  33 #include <awt.h>
  34 #include <awt_p.h>
  35 
  36 /*
  37  * Fix 4221246: Provide utility function for Netscape to use to
  38  * get AWT display, depth, colormap, and number of colors.
  39  *
  40  */
  41 
  42 Display *getAwtDisplay(void)
  43 {
  44   return awt_display;
  45 }
  46 
  47 void getExtAwtData(Display      *display,
  48                    int32_t      screen,
  49                    int32_t      *awt_depth,
  50                    Colormap     *awt_cmap,
  51                    Visual       **awt_visual,
  52                    int32_t      *awt_num_colors,
  53                    void         *pReserved)
  54 {
  55   AwtGraphicsConfigDataPtr defaultConfig = NULL;
  56 
  57 #ifdef DEBUG
  58   if (pReserved != NULL) {
  59     jio_fprintf(stderr,
  60                 "getExtAwtData: warning: reserved pointer is not null\n");
  61   }
  62 #endif
  63 
  64   if (screen >= 0) {
  65     defaultConfig = getDefaultConfig(screen);
  66   }
  67 
  68   if (defaultConfig) {
  69     if (awt_depth != NULL) {
  70       *awt_depth = defaultConfig->awt_depth;
  71     }
  72 
  73     if (awt_cmap != NULL) {
  74       *awt_cmap = defaultConfig->awt_cmap;
  75     }
  76 
  77     if (awt_visual != NULL) {
  78       *awt_visual = defaultConfig->awt_visInfo.visual;
  79     }
  80 
  81     if (awt_num_colors != NULL) {
  82       *awt_num_colors = defaultConfig->awt_num_colors;
  83     }
  84   }
  85 }
  86 
  87 /*
  88  * getAwtData provided for compatibility with Solaris 1.2 Java Plug-in
  89  *
  90  */
  91 void getAwtData(int32_t          *awt_depth,
  92                 Colormap     *awt_cmap,
  93                 Visual       **awt_visual,
  94                 int32_t          *awt_num_colors,
  95                 void         *pReserved)
  96 {
  97   Display *display = getAwtDisplay();
  98 
  99   getExtAwtData(display,
 100                 DefaultScreen(display),
 101                 awt_depth,
 102                 awt_cmap,
 103                 awt_visual,
 104                 awt_num_colors,
 105                 pReserved);
 106 }
 107 
 108 /*
 109  * Fix 4221246: Provide utility funtion for Netscape to get
 110  * function pointers to AWT lock functions.
 111  *
 112  */
 113 
 114 static void awt_lock_wrapper(JNIEnv *env) {
 115   AWT_LOCK();
 116 }
 117 
 118 static void awt_unlock_wrapper(JNIEnv *env) {
 119   AWT_UNLOCK();
 120 }
 121 
 122 static void awt_noflush_unlock_wrapper(JNIEnv *env) {
 123   AWT_NOFLUSH_UNLOCK();
 124 }
 125 
 126 void getAwtLockFunctions(void (**AwtLock)(JNIEnv *),
 127                          void (**AwtUnlock)(JNIEnv *),
 128                          void (**AwtNoFlushUnlock)(JNIEnv *),
 129                          void *pReserved)
 130 {
 131 #ifdef DEBUG
 132   if (pReserved != NULL) {
 133     jio_fprintf(stderr,
 134                 "getAwtLockFunctions: warning: reserved pointer is not null\n");
 135   }
 136 #endif
 137 
 138   if (AwtLock != NULL) {
 139     *AwtLock = awt_lock_wrapper;
 140   }
 141 
 142   if (AwtUnlock != NULL) {
 143     *AwtUnlock = awt_unlock_wrapper;
 144   }
 145 
 146   if (AwtNoFlushUnlock != NULL) {
 147     *AwtNoFlushUnlock = awt_noflush_unlock_wrapper;
 148   }
 149 }