/* * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * - Redistribution of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistribution in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Sun Microsystems, Inc. or the names of * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * This software is provided "AS IS," without a warranty of any kind. ALL * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN * MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * * You acknowledge that this software is not designed or intended for use * in the design, construction, operation or maintenance of any nuclear * facility. * */ /* This file contains a helper routine to be called by Java code to determine whether the Xinerama extension is in use and therefore to treat the multiple AWT screens as one large screen. */ #include <inttypes.h> #include <X11/Xlib.h> #ifdef __sun typedef Status XineramaGetInfoFunc(Display* display, int screen_number, XRectangle* framebuffer_rects, unsigned char* framebuffer_hints, int* num_framebuffers); typedef Status XineramaGetCenterHintFunc(Display* display, int screen_number, int* x, int* y); XineramaGetCenterHintFunc* XineramaSolarisCenterFunc = NULL; #include <dlfcn.h> #elif defined(__linux__) #include "Xinerama.h" #endif Bool XineramaEnabled(Display* display) { #ifdef __sun #define MAXFRAMEBUFFERS 16 char* XinExtName = "XINERAMA"; int32_t major_opcode, first_event, first_error; Bool gotXinExt = False; void* libHandle = 0; unsigned char fbhints[MAXFRAMEBUFFERS]; XRectangle fbrects[MAXFRAMEBUFFERS]; int locNumScr = 0; Bool usingXinerama = False; char* XineramaLibName= "libXext.so"; char* XineramaGetInfoName = "XineramaGetInfo"; char* XineramaGetCenterHintName = "XineramaGetCenterHint"; XineramaGetInfoFunc* XineramaSolarisFunc = NULL; gotXinExt = XQueryExtension(display, XinExtName, &major_opcode, &first_event, &first_error); if (gotXinExt) { /* load library, load and run XineramaGetInfo */ libHandle = dlopen(XineramaLibName, RTLD_LAZY | RTLD_GLOBAL); if (libHandle != 0) { XineramaSolarisFunc = (XineramaGetInfoFunc*)dlsym(libHandle, XineramaGetInfoName); XineramaSolarisCenterFunc = (XineramaGetCenterHintFunc*)dlsym(libHandle, XineramaGetCenterHintName); if (XineramaSolarisFunc != NULL) { if ((*XineramaSolarisFunc)(display, 0, &fbrects[0], &fbhints[0], &locNumScr) != 0) { usingXinerama = True; } } dlclose(libHandle); } } return usingXinerama; #elif defined(__linux__) char* XinExtName = "XINERAMA"; int32_t major_opcode, first_event, first_error; Bool gotXinExt = False; int32_t locNumScr = 0; XineramaScreenInfo *xinInfo; gotXinExt = XQueryExtension(display, XinExtName, &major_opcode, &first_event, &first_error); if (gotXinExt) { xinInfo = XineramaQueryScreens(display, &locNumScr); if (xinInfo != NULL) { return True; } } return False; #else return False; #endif }