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/*
* $RCSfile$
*
* Copyright (c) 2005 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.
*/
#if defined(LINUX)
#define _GNU_SOURCE 1
#endif
#include <jni.h>
#include <math.h>
#include <stdio.h>
#include "gldefs.h"
#if defined(UNIX)
#include <X11/X.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <dlfcn.h>
#endif
#ifdef WIN32
#include <windows.h>
#endif
#if defined(UNIX)
/*
* Class: javax_media_j3d_NativeScreenInfo
* Method: openDisplay
* Signature: ()J
*/
JNIEXPORT jlong JNICALL
Java_javax_media_j3d_NativeScreenInfo_openDisplay(
JNIEnv *env,
jclass cls)
{
Display* dpy;
dpy = XOpenDisplay(NULL);
return (jlong)dpy;
}
/*
* Class: javax_media_j3d_NativeScreenInfo
* Method: getDefaultScreen
* Signature: (J)I
*/
JNIEXPORT jint JNICALL
Java_javax_media_j3d_NativeScreenInfo_getDefaultScreen(
JNIEnv *env,
jclass cls,
jlong display)
{
Display* dpy = (Display*)display;
return (jint)DefaultScreen(dpy);
}
/*
* Class: javax_media_j3d_NativeScreenInfo
* Method: queryGLX13
* Signature: (J)Z
*/
JNIEXPORT jboolean JNICALL
Java_javax_media_j3d_NativeScreenInfo_queryGLX13(
JNIEnv *env,
jclass cls,
jlong display)
{
/* Fix for Issue 20 */
MYPFNGLXCHOOSEFBCONFIG tmpfp;
int major, minor;
int errorBase, eventBase;
Display* dpy = (Display*)display;
/* It should be cleaner to return both the major and minor to the caller. */
if (!glXQueryExtension(dpy, &errorBase, &eventBase)) {
fprintf(stderr, "Java 3D ERROR : GLX extension is not supported\n");
fprintf(stderr, " GLX version 1.3 or higher is required\n");
return JNI_FALSE;
}
/* Query the GLX version number */
if (!glXQueryVersion(dpy, &major, &minor)) {
fprintf(stderr, "Java 3D ERROR : Unable to query GLX version\n");
fprintf(stderr, " GLX version 1.3 or higher is required\n");
return JNI_FALSE;
}
/*fprintf(stderr, "Checking GLX version : %d.%d\n", major, minor);*/
tmpfp = (MYPFNGLXCHOOSEFBCONFIG)dlsym(RTLD_DEFAULT, "glXChooseFBConfig");
if (tmpfp == NULL) {
fprintf(stderr, "Java 3D ERROR : glXChooseFBConfig not found\n");
fprintf(stderr, " GLX version = %d.%d\n", major, minor);
fprintf(stderr, " GLX version 1.3 or higher is required\n");
return JNI_FALSE;
}
/* Check for GLX 1.3 and higher */
if (!(major == 1 && minor >= 3)) {
fprintf(stderr, "Java 3D WARNING : reported GLX version = %d.%d\n", major, minor);
fprintf(stderr, " GLX version 1.3 or higher is required\n");
fprintf(stderr,
" The reported version number may be incorrect. There is a known\n");
fprintf(stderr,
" ATI driver bug in glXQueryVersion that incorrectly reports the GLX\n");
fprintf(stderr,
" version as 1.2 when it really is 1.3, so Java 3D will attempt to\n");
fprintf(stderr,
" run anyway.\n");
/*return JNI_FALSE;*/
}
return JNI_TRUE;
}
#endif /* Solaris and Linux */
#ifdef WIN32
extern HWND createDummyWindow(const char* szAppName);
extern void printErrorMessage(char *message);
extern PIXELFORMATDESCRIPTOR getDummyPFD();
extern BOOL isSupportedWGL(const char *extensions, const char *extension_string);
/*
* Class: javax_media_j3d_NativeScreenInfo
* Method: queryWglARB
* Signature: (J)Z
*/
JNIEXPORT jboolean JNICALL
Java_javax_media_j3d_NativeScreenInfo_queryWglARB(
JNIEnv *env,
jclass cls)
{
static const BOOL debug = TRUE;
static char szAppName[] = "Choose Pixel Format";
PIXELFORMATDESCRIPTOR dummy_pfd = getDummyPFD();
HWND hwnd;
HGLRC hrc;
HDC hdc;
int pixelFormat;
const char* supportedExtensions;
/* declare function pointers for WGL functions */
PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetExtensionsStringARB = NULL;
/*
* Select any pixel format and bound current context to
* it so that we can get the wglChoosePixelFormatARB entry point.
* Otherwise wglxxx entry point will always return null.
* That's why we need to create a dummy window also.
*/
hwnd = createDummyWindow((const char *)szAppName);
if (!hwnd) {
return JNI_FALSE;
}
hdc = GetDC(hwnd);
pixelFormat = ChoosePixelFormat(hdc, &dummy_pfd);
if (pixelFormat<1) {
printErrorMessage("Failed in ChoosePixelFormat");
DestroyWindow(hwnd);
UnregisterClass(szAppName, (HINSTANCE)NULL);
return JNI_FALSE;
}
SetPixelFormat(hdc, pixelFormat, NULL);
hrc = wglCreateContext(hdc);
if (!hrc) {
printErrorMessage("Failed in wglCreateContext");
DestroyWindow(hwnd);
UnregisterClass(szAppName, (HINSTANCE)NULL);
return JNI_FALSE;
}
if (!wglMakeCurrent(hdc, hrc)) {
printErrorMessage("Failed in wglMakeCurrent");
ReleaseDC(hwnd, hdc);
wglDeleteContext(hrc);
DestroyWindow(hwnd);
UnregisterClass(szAppName, (HINSTANCE)NULL);
return JNI_FALSE;
}
wglGetExtensionsStringARB = (PFNWGLGETEXTENSIONSSTRINGARBPROC)
wglGetProcAddress("wglGetExtensionsStringARB");
if (wglGetExtensionsStringARB == NULL) {
/* printErrorMessage("wglGetExtensionsStringARB not support !\n"); */
return JNI_FALSE;
}
else {
/* get the list of supported extensions */
supportedExtensions = (const char *)wglGetExtensionsStringARB(hdc);
if (debug) {
fprintf(stderr, "WGL Supported extensions: %s.\n", supportedExtensions);
}
if(!isSupportedWGL(supportedExtensions, "WGL_ARB_pixel_format")) {
fprintf(stderr, "WGL_ARB_pixel_format not supported.\n");
return JNI_FALSE;
}
}
ReleaseDC(hwnd, hdc);
wglDeleteContext(hrc);
DestroyWindow(hwnd);
UnregisterClass(szAppName, (HINSTANCE)NULL);
return JNI_TRUE;
}
#endif /* WIN32 */
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