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/*
* $RCSfile$
*
* Copyright (c) 2006 Sun Microsystems, Inc. All rights reserved.
*
* Use is subject to license terms.
*
* $Revision$
* $Date$
* $State$
*/
/*
* Portions of this code were derived from work done by the Blackdown
* group (www.blackdown.org), who did the initial Linux implementation
* of the Java 3D API.
*/
#ifdef DEBUG
#define DPRINT(args) fprintf args
#else
#define DPRINT(args)
#endif /* DEBUG */
#include <jni.h>
#include <math.h>
#include <string.h>
#include "gldefs.h"
#ifdef WIN32
#include <windows.h>
#include <winbase.h>
#endif /* WIN32 */
#if defined(UNIX)
#include <unistd.h>
#ifdef SOLARIS
#include <thread.h>
#else
#include <pthread.h>
#endif
#include <dlfcn.h>
#include <X11/X.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#if defined(SOLARIS) && defined(__sparc)
#pragma weak glXInitThreadsSUN
#pragma weak glXDisableXineramaSUN
#pragma weak XPanoramiXQueryExtension
extern int glXInitThreadsSUN();
extern int glXDisableXineramaSUN(Display *dpy);
/*
* The following is currently an unsupported, undocumented function to query
* whether the X server is running with Xinerama support. This is an interim
* solution until it is made part of the X Window System standard or replaced
* with a fully supported API. It is currently available in the libXext
* shipped with Solaris 9 and patched versions of Solaris 7 and 8. dlsym() is
* used to check for its existence.
*/
extern Bool XPanoramiXQueryExtension(Display *dpy,
int *event_base, int *error_base);
#endif /* SOLARIS && __sparc */
#endif /* UNIX_ */
/* defined in Canvas3D.c */
extern int isExtensionSupported(const char *allExtensions,
const char *extension);
JNIEXPORT jboolean JNICALL
Java_javax_media_j3d_NativePipeline_initializeJ3D(
JNIEnv *env, jobject obj, jboolean disableXinerama)
{
jboolean glIsMTSafe = JNI_TRUE;
/* Nothing to do for non-sparc-solaris platforms */
#if defined(SOLARIS) && defined(__sparc)
Display* dpy;
int event_base, error_base;
const char *glxExtStr = NULL;
glIsMTSafe = JNI_FALSE;
dpy = XOpenDisplay(NULL);
glxExtStr = glXGetClientString((Display*)dpy, GLX_EXTENSIONS);
#ifdef GLX_SUN_init_threads
if(isExtensionSupported(glxExtStr, "GLX_SUN_init_threads")) {
if (glXInitThreadsSUN()) {
glIsMTSafe = JNI_TRUE;
}
else {
DPRINT((stderr, "Failed initializing OpenGL for MT rendering.\n"));
DPRINT((stderr, "glXInitThreadsSUN returned false.\n"));
}
}
else {
DPRINT((stderr, "Failed to initialize OpenGL for MT rendering.\n"));
DPRINT((stderr, "GLX_SUN_init_threads not available.\n"));
}
#endif /* GLX_SUN_init_threads */
if (disableXinerama) {
DPRINT((stderr, "Property j3d.disableXinerama true "));
if ((! dlsym(RTLD_DEFAULT, "XPanoramiXQueryExtension")) ||
(! dlsym(RTLD_DEFAULT, "XDgaGetXineramaInfo"))) {
DPRINT((stderr, "but required API not available.\n"));
return glIsMTSafe;
}
if (XPanoramiXQueryExtension(dpy, &event_base, &error_base)) {
DPRINT((stderr, "and Xinerama is in use.\n"));
#ifdef GLX_SUN_disable_xinerama
if(isExtensionSupported(glxExtStr, "GLX_SUN_disable_xinerama")) {
if (glXDisableXineramaSUN((Display *)dpy)) {
jclass cls = (*env)->GetObjectClass(env, obj);
jfieldID disabledField =
(*env)->GetFieldID(env, cls, "xineramaDisabled", "Z");
(*env)->SetBooleanField(env, obj, disabledField, JNI_TRUE);
DPRINT((stderr, "Successfully disabled Xinerama.\n"));
}
else {
DPRINT((stderr, "Failed to disable Xinerama: "));
DPRINT((stderr, "glXDisableXineramaSUN returns false.\n"));
}
} else {
DPRINT((stderr, "Failed to disable Xinerama: "));
DPRINT((stderr, "GLX_SUN_disable_xinerama not available.\n"));
}
#endif /* GLX_SUN_disable_xinerama */
} else {
DPRINT((stderr, "but Xinerama is not in use.\n"));
}
}
#endif /* SOLARIS && __sparc */
return glIsMTSafe;
}
#ifdef WIN32
DWORD countBits(DWORD mask)
{
DWORD count = 0;
int i;
for (i=sizeof(DWORD)*8-1; i >=0 ; i--) {
if ((mask & 0x01) > 0) {
count++;
}
mask >>= 1;
}
return count;
}
#endif /* WIN32 */
JNIEXPORT
jint JNICALL Java_javax_media_j3d_NativePipeline_getMaximumLights(
JNIEnv *env,
jobject obj
) {
#ifdef SOLARIS
return 32;
#endif /* SOLARIS */
#ifdef WIN32
return 8;
#endif /* WIN32 */
#ifdef LINUX
return 8;
#endif /* LINUX */
}
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