#include <inttypes.h> #include <X11/Xlib.h> #include <X11/Xutil.h> #include <GL/glx.h> /* Linux headers don't work properly */ #define __USE_GNU #include <dlfcn.h> #undef __USE_GNU /* HP-UX doesn't define RTLD_DEFAULT. */ #if defined(_HPUX) && !defined(RTLD_DEFAULT) #define RTLD_DEFAULT NULL #endif /* We expect glXGetProcAddressARB to be defined */ extern void (*glXGetProcAddressARB(const GLubyte *procname))(); static const char * clazzNameBuffers = "com/jogamp/common/nio/Buffers"; static const char * clazzNameBuffersStaticCstrName = "copyByteBuffer"; static const char * clazzNameBuffersStaticCstrSignature = "(Ljava/nio/ByteBuffer;)Ljava/nio/ByteBuffer;"; static const char * clazzNameByteBuffer = "java/nio/ByteBuffer"; static jclass clazzBuffers = NULL; static jmethodID cstrBuffers = NULL; static jclass clazzByteBuffer = NULL; static void _initClazzAccess(JNIEnv *env) { jclass c; if(NULL!=cstrBuffers) return ; c = (*env)->FindClass(env, clazzNameBuffers); if(NULL==c) { fprintf(stderr, "FatalError: Java_jogamp_opengl_x11_glx_GLX: can't find %s\n", clazzNameBuffers); (*env)->FatalError(env, clazzNameBuffers); } clazzBuffers = (jclass)(*env)->NewGlobalRef(env, c); if(NULL==clazzBuffers) { fprintf(stderr, "FatalError: Java_jogamp_opengl_x11_glx_GLX: can't use %s\n", clazzNameBuffers); (*env)->FatalError(env, clazzNameBuffers); } c = (*env)->FindClass(env, clazzNameByteBuffer); if(NULL==c) { fprintf(stderr, "FatalError: Java_jogamp_opengl_x11_glx_GLX: can't find %s\n", clazzNameByteBuffer); (*env)->FatalError(env, clazzNameByteBuffer); } clazzByteBuffer = (jclass)(*env)->NewGlobalRef(env, c); if(NULL==c) { fprintf(stderr, "FatalError: Java_jogamp_opengl_x11_glx_GLX: can't use %s\n", clazzNameByteBuffer); (*env)->FatalError(env, clazzNameByteBuffer); } cstrBuffers = (*env)->GetStaticMethodID(env, clazzBuffers, clazzNameBuffersStaticCstrName, clazzNameBuffersStaticCstrSignature); if(NULL==cstrBuffers) { fprintf(stderr, "FatalError: Java_jogamp_opengl_x11_glx_GLX:: can't create %s.%s %s\n", clazzNameBuffers, clazzNameBuffersStaticCstrName, clazzNameBuffersStaticCstrSignature); (*env)->FatalError(env, clazzNameBuffersStaticCstrName); } } /* Java->C glue code: * Java package: jogamp.opengl.x11.glx.GLX * Java method: XVisualInfo glXGetVisualFromFBConfig(long dpy, long config) * C function: XVisualInfo * glXGetVisualFromFBConfig(Display * dpy, GLXFBConfig config); */ JNIEXPORT jobject JNICALL Java_jogamp_opengl_x11_glx_GLX_dispatch_1glXGetVisualFromFBConfig(JNIEnv *env, jclass _unused, jlong dpy, jlong config, jlong procAddress) { typedef XVisualInfo* (APIENTRY*_local_PFNGLXGETVISUALFROMFBCONFIG)(Display * dpy, GLXFBConfig config); _local_PFNGLXGETVISUALFROMFBCONFIG ptr_glXGetVisualFromFBConfig; XVisualInfo * _res; jobject jbyteSource; jobject jbyteCopy; ptr_glXGetVisualFromFBConfig = (_local_PFNGLXGETVISUALFROMFBCONFIG) (intptr_t) procAddress; assert(ptr_glXGetVisualFromFBConfig != NULL); _res = (* ptr_glXGetVisualFromFBConfig) ((Display *) (intptr_t) dpy, (GLXFBConfig) (intptr_t) config); if (_res == NULL) return NULL; _initClazzAccess(env); jbyteSource = (*env)->NewDirectByteBuffer(env, _res, sizeof(XVisualInfo)); jbyteCopy = (*env)->CallStaticObjectMethod(env, clazzBuffers, cstrBuffers, jbyteSource); (*env)->DeleteLocalRef(env, jbyteSource); XFree(_res); return jbyteCopy; } /* Java->C glue code: * Java package: jogamp.opengl.x11.glx.GLX * Java method: java.nio.LongBuffer glXChooseFBConfig(long dpy, int screen, java.nio.IntBuffer attribList, java.nio.IntBuffer nitems) * C function: GLXFBConfig * glXChooseFBConfig(Display * dpy, int screen, const int * attribList, int * nitems); */ JNIEXPORT jobject JNICALL Java_jogamp_opengl_x11_glx_GLX_dispatch_1glXChooseFBConfig(JNIEnv *env, jclass _unused, jlong dpy, jint screen, jobject attribList, jint attribList_byte_offset, jobject nitems, jint nitems_byte_offset, jlong procAddress) { typedef GLXFBConfig* (APIENTRY*_local_PFNGLXCHOOSEFBCONFIG)(Display * dpy, int screen, const int * attribList, int * nitems); _local_PFNGLXCHOOSEFBCONFIG ptr_glXChooseFBConfig; int * _ptr2 = NULL; int * _ptr3 = NULL; GLXFBConfig * _res; int count; jobject jbyteSource; jobject jbyteCopy; ptr_glXChooseFBConfig = (_local_PFNGLXCHOOSEFBCONFIG) (intptr_t) procAddress; assert(ptr_glXChooseFBConfig != NULL); if (attribList != NULL) { _ptr2 = (int *) (((char*) (*env)->GetPrimitiveArrayCritical(env, attribList, NULL)) + attribList_byte_offset); } if (nitems != NULL) { _ptr3 = (int *) (((char*) (*env)->GetPrimitiveArrayCritical(env, nitems, NULL)) + nitems_byte_offset); } _res = (*ptr_glXChooseFBConfig)((Display *) (intptr_t) dpy, (int) screen, (int *) _ptr2, (int *) _ptr3); count = _ptr3[0]; if (attribList != NULL) { (*env)->ReleasePrimitiveArrayCritical(env, attribList, _ptr2, 0); } if (nitems != NULL) { (*env)->ReleasePrimitiveArrayCritical(env, nitems, _ptr3, 0); } if (_res == NULL) return NULL; _initClazzAccess(env); jbyteSource = (*env)->NewDirectByteBuffer(env, _res, count * sizeof(GLXFBConfig)); jbyteCopy = (*env)->CallStaticObjectMethod(env, clazzBuffers, cstrBuffers, jbyteSource); (*env)->DeleteLocalRef(env, jbyteSource); XFree(_res); return jbyteCopy; } /* Java->C glue code: * Java package: jogamp.opengl.x11.glx.GLX * Java method: XVisualInfo glXChooseVisual(long dpy, int screen, java.nio.IntBuffer attribList) * C function: XVisualInfo * glXChooseVisual(Display * dpy, int screen, int * attribList); */ JNIEXPORT jobject JNICALL Java_jogamp_opengl_x11_glx_GLX_dispatch_1glXChooseVisual(JNIEnv *env, jclass _unused, jlong dpy, jint screen, jobject attribList, jint attribList_byte_offset, jlong procAddress) { typedef XVisualInfo* (APIENTRY*_local_PFNGLXCHOOSEVISUAL)(Display * dpy, int screen, int * attribList); _local_PFNGLXCHOOSEVISUAL ptr_glXChooseVisual; int * _ptr2 = NULL; XVisualInfo * _res; jobject jbyteSource; jobject jbyteCopy; ptr_glXChooseVisual = (_local_PFNGLXCHOOSEVISUAL) (intptr_t) procAddress; assert(ptr_glXChooseVisual != NULL); if (attribList != NULL) { _ptr2 = (int *) (((char*) (*env)->GetPrimitiveArrayCritical(env, attribList, NULL)) + attribList_byte_offset); } _res = (*ptr_glXChooseVisual)((Display *) (intptr_t) dpy, (int) screen, (int *) _ptr2); if (attribList != NULL) { (*env)->ReleasePrimitiveArrayCritical(env, attribList, _ptr2, 0); } if (_res == NULL) return NULL; _initClazzAccess(env); jbyteSource = (*env)->NewDirectByteBuffer(env, _res, sizeof(XVisualInfo)); jbyteCopy = (*env)->CallStaticObjectMethod(env, clazzBuffers, cstrBuffers, jbyteSource); (*env)->DeleteLocalRef(env, jbyteSource); XFree(_res); return jbyteCopy; }