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Diffstat (limited to 'src/nativewindow/native/x11/XineramaHelper.c')
-rw-r--r-- | src/nativewindow/native/x11/XineramaHelper.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/nativewindow/native/x11/XineramaHelper.c b/src/nativewindow/native/x11/XineramaHelper.c new file mode 100644 index 000000000..899bbba55 --- /dev/null +++ b/src/nativewindow/native/x11/XineramaHelper.c @@ -0,0 +1,121 @@ +/* + * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved. + * Copyright (c) 2010 JogAmp Community. 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. + */ + +/* 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> + +#else + +#include <X11/extensions/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; + +#else + + 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; + +#endif +} + |