diff options
Diffstat (limited to 'CNativeCode/OpenGL_Win32.c')
| -rwxr-xr-x | CNativeCode/OpenGL_Win32.c | 1177 |
1 files changed, 593 insertions, 584 deletions
diff --git a/CNativeCode/OpenGL_Win32.c b/CNativeCode/OpenGL_Win32.c index 8e888e3..a4c22b3 100755 --- a/CNativeCode/OpenGL_Win32.c +++ b/CNativeCode/OpenGL_Win32.c @@ -1,584 +1,593 @@ -/*
- * Original Author: Leo Chan -- 1995
- *
- * Adam King 1997
- * Ported to Win32 from X
- *
- * This file takes care of the C implementation of finding the correct
- * Win32 window, assigning an OpenGL graphics context to it, storing that
- * graphics context in the java class data structure.
- *
- * also contains the use() and swap() functions for double buffering
- *
- * September 12, 1997 - Adam King
- * - Added support for rendering directly into a Canvas ( BIG rewrite )
- */
-
-/**
- * Pointer Semantics of GLContext:
- * ==============================
-
- "displayHandle" := not used
-
- "pData" := (HDC)
- This is original Java-Native Window Handle !
- It is transfered -> "windowHandle" in the beginning,
- so if no own created window will be used, "pData" == "windowHandle" !
-
- "windowHandle" := (HDC)
- note: createOwnWindow is not recognized while creation process ..
-
- "pixmapHandle" := (HBITMAP)
- if("offScreenRenderer" == TRUE)
- "pixmapHandle" contains the new BITMAP (by CreateDIBSection)!
- "windowHandle" contains the new created OffScreenWindow
- (by CreateCompatibleDC)!
- else
- "pixmapHandle" is unused !
-
- "sharedGLContextNative" := (HGLRC)
- This is the optional shared GLContext !
-
- "glContext" := (HGLRC)
- This is THE used GLContext !
- */
-
-#include "OpenGL_Win32_common.h"
-
-static jboolean verbose = JNI_FALSE;
-
-JNIEXPORT jboolean JNICALL
-Java_gl4java_GLContext_useJAWT( JNIEnv *env, jobject obj )
-{
- (void)env;
- (void)obj;
- return JNI_FALSE;
-}
-
-JNIEXPORT jboolean JNICALL
-Java_gl4java_GLContext_hasJAWTSurfaceChanged( JNIEnv *env, jobject obj,
- jlong thisWin )
-{
- (void)env;
- (void)obj;
- (void)thisWin;
- return JNI_FALSE;
-}
-
-JNIEXPORT jboolean JNICALL
-Java_gl4java_GLContext_lockJAWT( JNIEnv *env, jobject obj,
- jobject canvas,
- jlong thisWin, jboolean verbose
- )
-{
- (void) env;
- (void) obj;
- (void) canvas;
- (void) thisWin;
- (void) verbose;
- return JNI_TRUE;
-}
-
-JNIEXPORT jboolean JNICALL
-Java_gl4java_GLContext_unlockJAWT( JNIEnv *env, jobject obj,
- jlong thisWin, jboolean verbose
- )
-{
- (void) env;
- (void) obj;
- (void) thisWin;
- (void) verbose;
- return JNI_TRUE;
-}
-
-JNIEXPORT jboolean JNICALL
-Java_gl4java_GLContext_openOpenGLNative( JNIEnv *env, jobject obj,
- jobject canvas)
-{
- jboolean ret = JNI_TRUE;
-
- jclass cls = 0;
- jfieldID fpixmapHandle=0;
- jfieldID foffScreenRenderer=0;
- jfieldID faccumSize=0;
- jfieldID fwindowHandle=0, fpData=0;
- jfieldID fverbose=0;
- jfieldID fglContext=0;
- jfieldID fshareWith=0;
- jfieldID fcreatewinw = 0, fcreatewinh = 0;
- jfieldID fglCaps=0;
-
- /* these variables will be mapped in the java-object ! */
- jboolean joffScreenRenderer=JNI_FALSE;
- HDC thisWin=0;
- HGLRC gc=0;
- PIXELFORMATDESCRIPTOR pfd;
- HDC pData=0;
- HGLRC shareWith=NULL;
- jint jcreatewinw = 0, jcreatewinh = 0;
- HBITMAP pix=0;
- GLCapabilities glCaps;
- jobject jglCaps=0;
- jthrowable exc;
- jclass _GLCapabilities= 0;
-
- (void) canvas;
-
- cls = (*env)->GetObjectClass(env, obj);
- if(cls==0)
- {
- fprintf(stderr,"oo0.0 cls==0\n");
- fflush(stderr);
- return JNI_FALSE;
- }
-
- if(ret==JNI_TRUE)
- {
- fverbose =(*env)->GetStaticFieldID(env, cls, "gljNativeDebug", "Z");
- if (fverbose == 0)
- {
- fprintf(stderr,"oo0.2 fverbose==0\n");
- fflush(stderr);
- return JNI_FALSE;
- } else {
- verbose = (*env)->GetStaticBooleanField(env, cls, fverbose);
- }
- }
-
- if(JNI_TRUE==verbose)
- {
- fprintf(stderr, "sizes:\n jlong=%d\n HGLRC=%d\n HDC=%d\n",
- sizeof(jlong), sizeof(HGLRC), sizeof(HDC) );
- fflush(stderr);
- }
-
- /* FIRST OF ALL CHECK IF A NATIVE POINTER OR WIN-TYPE FITS IN �jlong� */
- ret = testWin32Java();
-
- ret = testJavaGLTypes(verbose);
-
- if(ret==JNI_TRUE) {
- fpData = (*env)->GetFieldID(env, cls, "pData", "J");
- if (fpData == 0) {
- fprintf(stderr, "pData not accessible !\n");
- fflush(stderr);
- ret= JNI_FALSE;
- } else pData = (HDC)
- ( (PointerHolder)(*env)->GetLongField(env, obj, fpData));
- }
- if(JNI_TRUE==verbose)
- {
- fprintf(stderr, "received pData : %d\n", (int)pData);
- }
-
- if(ret==JNI_TRUE) {
- fwindowHandle = (*env)->GetFieldID(env, cls, "windowHandle", "J");
- if (fwindowHandle == 0) {
- fprintf(stderr, "windowHandle not accessible !\n");
- fflush(stderr);
- ret= JNI_FALSE;
- }
- }
-
- if(ret==JNI_TRUE) {
- fglContext=(*env)->GetFieldID(env, cls, "glContext", "J");
- if (fglContext == 0)
- {
- fprintf(stderr, "fglContext not accessible !\n");
- fflush(stderr);
- ret= JNI_FALSE;
- }
- }
-
- if(ret==JNI_TRUE) {
- foffScreenRenderer =
- (*env)->GetFieldID(env, cls, "offScreenRenderer", "Z");
- if (foffScreenRenderer == 0)
- {
- fprintf(stderr, "foffScreenRenderer not accessible !\n");
- fflush(stderr);
- ret= JNI_FALSE;
- }
- else joffScreenRenderer =(*env)->GetBooleanField(env, obj, foffScreenRenderer);
- }
-
- if(ret==JNI_TRUE) {
- fglCaps = (*env)->GetFieldID(env, cls, "glCaps", "Lgl4java/GLCapabilities;");
- if (fglCaps == 0)
- {
- fprintf(stderr, "fglCaps not accessible !\n");
- fflush(stderr);
- ret= JNI_FALSE;
- }
- else jglCaps =(*env)->GetObjectField(env, obj, fglCaps);
- }
-
- if( jglCaps==0 )
- {
- fprintf(stderr,"\nGL4Java openOpenGL ERROR: ZERO capsObj was fetched by GetObjectField !\n");
- fflush(stderr);
- return JNI_FALSE;
- }
-
- _GLCapabilities= (*env)->FindClass(env, "Lgl4java/GLCapabilities;");
- exc = (*env)->ExceptionOccurred(env);
- if(exc) {
- if(JNI_TRUE==verbose)
- {
- fprintf(stderr, "GL4Java: openOpen FindClass gl4java/GLCapabilities failed, cannot check glCaps object\n");
- (*env)->ExceptionDescribe(env);
- fflush(stderr);
- }
- (*env)->ExceptionClear(env);
- _GLCapabilities=0;
- }
- exc=0;
-
- if( _GLCapabilities!=0 &&
- (*env)->IsInstanceOf(env, jglCaps, _GLCapabilities)==JNI_FALSE )
- {
- fprintf(stderr,"\nGL4Java openOpenGL ERROR: glCaps is not instanceof gl4java/GLCapabilities !\n");
- fflush(stderr);
- return JNI_FALSE;
- }
-
- if( JNI_TRUE != javaGLCapabilities2NativeGLCapabilities ( env, jglCaps, &glCaps ) )
- {
- fprintf(stderr,"\nGL4Java ERROR: glCaps Object is not valid !\n");
- fflush(stderr);
- return JNI_FALSE;
- }
-
- if(ret==JNI_TRUE) {
- fcreatewinw = (*env)->GetFieldID(env, cls, "createwinw", "I");
- if (fcreatewinw == 0) ret= JNI_FALSE;
- else jcreatewinw =(*env)->GetIntField(env, obj, fcreatewinw);
- }
-
- if(ret==JNI_TRUE) {
- fcreatewinh = (*env)->GetFieldID(env, cls, "createwinh", "I");
- if (fcreatewinh == 0) ret= JNI_FALSE;
- else jcreatewinh =(*env)->GetIntField(env, obj, fcreatewinh);
- }
-
- if(ret==JNI_TRUE) {
- fshareWith = (*env)->GetFieldID(env, cls, "sharedGLContextNative", "J");
- if (fshareWith == 0) ret= JNI_FALSE;
- else shareWith = (HGLRC)
- ( (PointerHolder)(*env)->GetLongField(env, obj, fshareWith));
- }
-
- if(ret==JNI_TRUE) {
- fpixmapHandle = (*env)->GetFieldID(env, cls, "pixmapHandle", "J");
- if (fpixmapHandle == 0) ret= JNI_FALSE;
- }
-
- if(joffScreenRenderer==JNI_TRUE)
- {
- glCaps.buffer=BUFFER_SINGLE;
- }
-
- if(JNI_TRUE==verbose && joffScreenRenderer==JNI_TRUE)
- {
- fprintf(stderr,"\nGL4Java: (USING OFFSCREEN GLPIXMAP BUFFER,\n\t forced: !doubleBuffer)\n");
- fflush(stderr);
- }
-
- disp__wglMakeCurrent(NULL, NULL);
-
- /**
- * with version jdk1.1.6 and later, we are able to use
- * the java-function straight to achieve the native window
- * handle ....
- *
- * this handle is saved to pData for the windows version !
- */
- if( pData == 0)
- {
- printf( "get_GC: Error, pData is zero\n");
- return JNI_FALSE;
- }
- if( pData != 0 )
- thisWin = (HDC)pData;
-
- /* get the graphics context for this widget */
- if( (gc = get_GC( &thisWin, &glCaps, shareWith,
- joffScreenRenderer, jcreatewinw, jcreatewinh,
- &pix, verbose)) == 0
- )
- {
- printf( "getGC error" );
- return JNI_FALSE;
- }
-
- /* fetch the states of doubleBuffer and stereo */
- (void) PixelFormatDescriptorFromDc( thisWin, &pfd);
-
- if(JNI_TRUE==verbose)
- {
- fprintf(stdout,"\nGL4Java: writing capabilities to GLContext's java object\n");
- fflush(stdout);
- }
-
- if(jglCaps!=0)
- (void) nativeGLCapabilities2JavaGLCapabilities (env, jglCaps, &glCaps);
-
- if(ret==JNI_TRUE && fglCaps && jglCaps) {
- (*env)->SetObjectField(env, obj, fglCaps, jglCaps);
- }
-
- if(ret==JNI_TRUE && fwindowHandle!=0) {
- (*env)->SetLongField(env, obj, fwindowHandle,
- (jlong)((PointerHolder)thisWin));
- if(JNI_TRUE==verbose)
- fprintf(stderr, "go and set windowHandle thisWin : %d; 0x%X\n",
- (int)thisWin, (int)thisWin);
- }
-
- if(ret==JNI_TRUE && fpixmapHandle!=0) {
- (*env)->SetLongField(env, obj, fpixmapHandle, (jlong)((PointerHolder)pix));
- if(JNI_TRUE==verbose)
- fprintf(stderr, "go and set pixmapHandle pix: %d; 0x%X\n",
- (int)pix, (int)pix);
- }
-
- if(ret==JNI_TRUE && fglContext !=0 ) {
- (*env)->SetLongField(env, obj, fglContext, (jlong)((PointerHolder)gc));
- if(JNI_TRUE==verbose)
- fprintf(stderr, "go and set gc : %d, 0x%X\n",
- (int)gc, (int)gc);
- }
-
- /*
- gl4java_bind_ext(JNI_TRUE==verbose);
- */
-
- return ret;
-}
-
-JNIEXPORT jboolean JNICALL
-Java_gl4java_GLContext_gljMakeCurrentNative( JNIEnv *env, jobject obj,
- jobject canvas,
- jlong disp,
- jlong thisWin,
- jlong glContext)
-{
- jboolean ret = JNI_TRUE;
-
- (void)canvas;
-
- if( !thisWin )
- {
- return JNI_FALSE;
- }
-
- if( !glContext )
- {
- return JNI_FALSE;
- }
-
- if ( ret==JNI_TRUE && !disp__wglMakeCurrent((HDC)((PointerHolder)thisWin),
- (HGLRC)((PointerHolder)glContext)) )
- {
- return JNI_FALSE;
- }
- return JNI_TRUE;
-}
-
-JNIEXPORT jboolean JNICALL
-Java_gl4java_GLContext_gljFreeNative( JNIEnv *env, jobject obj,
- jobject canvas,
- jlong disp,
- jlong thisWin,
- jlong glContext
- )
-{
- (void)thisWin;
- (void)glContext;
- (void)disp;
- (void)canvas;
-
- if ( ! disp__wglMakeCurrent( NULL, NULL ) )
- {
- fprintf(stderr, "gljFree failed\n");
- fflush(stderr);
- return JNI_FALSE;
- }
- return JNI_TRUE;
-}
-
-JNIEXPORT jboolean JNICALL
-Java_gl4java_GLContext_gljDestroyNative( JNIEnv *env, jobject obj,
- jobject canvas)
-{
- jboolean ret = JNI_TRUE;
-
- jclass cls = 0;
- jfieldID fwindowHandle=0, fpixmapHandle=0;
- jfieldID fglContext=0;
- jfieldID foffScreenRenderer=0;
- jfieldID fownwind=0;
-
- jboolean jownwind = JNI_FALSE ;
- jboolean joffScreenRenderer=JNI_FALSE;
- HBITMAP pix=0;
- HDC thisWin=0;
- HGLRC gc=0;
-
-
- (void)canvas;
-
- cls = (*env)->GetObjectClass(env, obj);
- if(cls==0)
- {
- ret=JNI_FALSE;
- }
-
- if(ret==JNI_TRUE) {
- fwindowHandle = (*env)->GetFieldID(env, cls, "windowHandle", "J");
- if (fwindowHandle == 0) ret= JNI_FALSE;
- else thisWin =(HDC)
- ((PointerHolder)(*env)->GetLongField(env, obj, fwindowHandle));
- }
-
- if(ret==JNI_TRUE) {
- fglContext=(*env)->GetFieldID(env, cls, "glContext", "J");
- if (fglContext == 0) ret= JNI_FALSE;
- else gc =(HGLRC)
- ((PointerHolder)(*env)->GetLongField(env, obj, fglContext));
- }
-
-
- if(ret==JNI_TRUE) {
- fpixmapHandle = (*env)->GetFieldID(env, cls, "pixmapHandle", "J");
- if (fpixmapHandle == 0) ret= JNI_FALSE;
- else pix =(HBITMAP)
- ((PointerHolder)(*env)->GetLongField(env, obj, fpixmapHandle));
- }
-
- if(ret==JNI_TRUE) {
- foffScreenRenderer =
- (*env)->GetFieldID(env, cls, "offScreenRenderer", "Z");
- if (foffScreenRenderer == 0) ret= JNI_FALSE;
- else joffScreenRenderer =(*env)->GetBooleanField(env, obj, foffScreenRenderer);
- }
-
- if(ret==JNI_TRUE) {
- fownwind = (*env)->GetFieldID(env, cls, "createOwnWindow", "Z");
- if (fownwind == 0) ret= JNI_FALSE;
- else jownwind =(*env)->GetBooleanField(env, obj, fownwind);
- }
-
- if(ret==JNI_TRUE)
- {
- if ( gc == 0 )
- {
- if(JNI_TRUE==verbose)
- {
- fprintf(stderr, "gljDestroy error, GL context is 0\n");
- fflush(stderr);
- }
- }
-
- if ( ! disp__wglMakeCurrent( NULL, NULL ) )
- {
- fprintf(stderr, "gljDestroy failed (free)\n");
- fflush(stderr);
- }
-
- if(ret==JNI_TRUE)
- {
- if(gc!=0)
- disp__wglDeleteContext(gc);
-
- if(pix!=0)
- {
- if(thisWin!=0)
- DeleteDC(thisWin);
- thisWin=0;
- DeleteObject(pix);
- pix=0;
- }
- if(jownwind && thisWin!=0)
- {
- DeleteDC(thisWin);
- thisWin=0;
- jownwind=JNI_FALSE;
- }
- }
- }
-
- gc = 0;
- thisWin = 0;
-
- ret=JNI_TRUE;
-
- if(ret==JNI_TRUE && fwindowHandle!=0) {
- (*env)->SetLongField(env, obj, fwindowHandle, (jlong)((PointerHolder)thisWin));
- }
-
- if(ret==JNI_TRUE && fglContext) {
- (*env)->SetLongField(env, obj, fglContext, (jlong)((PointerHolder)gc));
- }
-
-
- if(ret==JNI_TRUE && fpixmapHandle!=0) {
- (*env)->SetLongField(env, obj, fpixmapHandle, (jlong)((PointerHolder)pix));
- }
-
- if(ret==JNI_TRUE && fownwind) {
- (*env)->SetBooleanField(env, obj, fownwind, jownwind);
- }
-
- return ret;
-}
-
-JNIEXPORT jboolean JNICALL
-Java_gl4java_GLContext_gljSwapNative( JNIEnv *env, jobject obj,
- jlong disp,
- jlong thisWin,
- jlong glContext,
- jboolean doubleBuffer
- )
-{
- jboolean ret = JNI_TRUE;
-
- (void)glContext;
- (void)disp;
-
- if( !thisWin )
- {
- fprintf(stderr,"Swap does not got the window ...\n");
- return JNI_FALSE;
- }
-
- if( doubleBuffer==JNI_TRUE )
- {
- if( SwapBuffers( (HDC)((PointerHolder)thisWin) ) == FALSE )
- {
- /* Error in Win2000 implementation :o)
- * printf( "Error in swap buffer!\n" );
- */
- return JNI_FALSE;
- }
- } else {
- disp__glFlush();
- }
- return ret;
-}
-
-JNIEXPORT void JNICALL
-Java_gl4java_GLContext_gljResizeNative( JNIEnv *env, jobject obj,
- jboolean isOwnWindow,
- jlong disp, jlong thisWin,
- jint width, jint height)
-{
- (void)isOwnWindow;
- (void)disp;
- (void)thisWin;
- (void)width;
- (void)height;
-
- return;
-}
-
+/* + * Original Author: Leo Chan -- 1995 + * + * Adam King 1997 + * Ported to Win32 from X + * + * This file takes care of the C implementation of finding the correct + * Win32 window, assigning an OpenGL graphics context to it, storing that + * graphics context in the java class data structure. + * + * also contains the use() and swap() functions for double buffering + * + * September 12, 1997 - Adam King + * - Added support for rendering directly into a Canvas ( BIG rewrite ) + */ + +/** + * Pointer Semantics of GLContext: + * ============================== + + "displayHandle" := not used + + "pData" := (HDC) + This is original Java-Native Window Handle ! + It is transfered -> "windowHandle" in the beginning, + so if no own created window will be used, "pData" == "windowHandle" ! + + "windowHandle" := (HDC) + note: createOwnWindow is not recognized while creation process .. + + "pixmapHandle" := (HBITMAP) + if("offScreenRenderer" == TRUE) + "pixmapHandle" contains the new BITMAP (by CreateDIBSection)! + "windowHandle" contains the new created OffScreenWindow + (by CreateCompatibleDC)! + else + "pixmapHandle" is unused ! + + "sharedGLContextNative" := (HGLRC) + This is the optional shared GLContext ! + + "glContext" := (HGLRC) + This is THE used GLContext ! + */ + +#include "OpenGL_Win32_common.h" + +static jboolean verbose = JNI_FALSE; + +JNIEXPORT jboolean JNICALL Java_gl4java_GLContext_loadJAWT0 +(JNIEnv *env, jclass unused, jstring str) +{ + (void)env; + (void)unused; + (void)str; + return JNI_FALSE; +} + +JNIEXPORT jboolean JNICALL +Java_gl4java_GLContext_useJAWT( JNIEnv *env, jclass unused ) +{ + (void)env; + (void)unused; + return JNI_FALSE; +} + +JNIEXPORT jboolean JNICALL +Java_gl4java_GLContext_hasJAWTSurfaceChanged( JNIEnv *env, jobject obj, + jlong thisWin ) +{ + (void)env; + (void)obj; + (void)thisWin; + return JNI_FALSE; +} + +JNIEXPORT jboolean JNICALL +Java_gl4java_GLContext_lockJAWT( JNIEnv *env, jobject obj, + jobject canvas, + jlong thisWin, jboolean verbose + ) +{ + (void) env; + (void) obj; + (void) canvas; + (void) thisWin; + (void) verbose; + return JNI_TRUE; +} + +JNIEXPORT jboolean JNICALL +Java_gl4java_GLContext_unlockJAWT( JNIEnv *env, jobject obj, + jlong thisWin, jboolean verbose + ) +{ + (void) env; + (void) obj; + (void) thisWin; + (void) verbose; + return JNI_TRUE; +} + +JNIEXPORT jboolean JNICALL +Java_gl4java_GLContext_openOpenGLNative( JNIEnv *env, jobject obj, + jobject canvas) +{ + jboolean ret = JNI_TRUE; + + jclass cls = 0; + jfieldID fpixmapHandle=0; + jfieldID foffScreenRenderer=0; + jfieldID faccumSize=0; + jfieldID fwindowHandle=0, fpData=0; + jfieldID fverbose=0; + jfieldID fglContext=0; + jfieldID fshareWith=0; + jfieldID fcreatewinw = 0, fcreatewinh = 0; + jfieldID fglCaps=0; + + /* these variables will be mapped in the java-object ! */ + jboolean joffScreenRenderer=JNI_FALSE; + HDC thisWin=0; + HGLRC gc=0; + PIXELFORMATDESCRIPTOR pfd; + HDC pData=0; + HGLRC shareWith=NULL; + jint jcreatewinw = 0, jcreatewinh = 0; + HBITMAP pix=0; + GLCapabilities glCaps; + jobject jglCaps=0; + jthrowable exc; + jclass _GLCapabilities= 0; + + (void) canvas; + + cls = (*env)->GetObjectClass(env, obj); + if(cls==0) + { + fprintf(stderr,"oo0.0 cls==0\n"); + fflush(stderr); + return JNI_FALSE; + } + + if(ret==JNI_TRUE) + { + fverbose =(*env)->GetStaticFieldID(env, cls, "gljNativeDebug", "Z"); + if (fverbose == 0) + { + fprintf(stderr,"oo0.2 fverbose==0\n"); + fflush(stderr); + return JNI_FALSE; + } else { + verbose = (*env)->GetStaticBooleanField(env, cls, fverbose); + } + } + + if(JNI_TRUE==verbose) + { + fprintf(stderr, "sizes:\n jlong=%d\n HGLRC=%d\n HDC=%d\n", + sizeof(jlong), sizeof(HGLRC), sizeof(HDC) ); + fflush(stderr); + } + + /* FIRST OF ALL CHECK IF A NATIVE POINTER OR WIN-TYPE FITS IN �jlong� */ + ret = testWin32Java(); + + ret = testJavaGLTypes(verbose); + + if(ret==JNI_TRUE) { + fpData = (*env)->GetFieldID(env, cls, "pData", "J"); + if (fpData == 0) { + fprintf(stderr, "pData not accessible !\n"); + fflush(stderr); + ret= JNI_FALSE; + } else pData = (HDC) + ( (PointerHolder)(*env)->GetLongField(env, obj, fpData)); + } + if(JNI_TRUE==verbose) + { + fprintf(stderr, "received pData : %d\n", (int)pData); + } + + if(ret==JNI_TRUE) { + fwindowHandle = (*env)->GetFieldID(env, cls, "windowHandle", "J"); + if (fwindowHandle == 0) { + fprintf(stderr, "windowHandle not accessible !\n"); + fflush(stderr); + ret= JNI_FALSE; + } + } + + if(ret==JNI_TRUE) { + fglContext=(*env)->GetFieldID(env, cls, "glContext", "J"); + if (fglContext == 0) + { + fprintf(stderr, "fglContext not accessible !\n"); + fflush(stderr); + ret= JNI_FALSE; + } + } + + if(ret==JNI_TRUE) { + foffScreenRenderer = + (*env)->GetFieldID(env, cls, "offScreenRenderer", "Z"); + if (foffScreenRenderer == 0) + { + fprintf(stderr, "foffScreenRenderer not accessible !\n"); + fflush(stderr); + ret= JNI_FALSE; + } + else joffScreenRenderer =(*env)->GetBooleanField(env, obj, foffScreenRenderer); + } + + if(ret==JNI_TRUE) { + fglCaps = (*env)->GetFieldID(env, cls, "glCaps", "Lgl4java/GLCapabilities;"); + if (fglCaps == 0) + { + fprintf(stderr, "fglCaps not accessible !\n"); + fflush(stderr); + ret= JNI_FALSE; + } + else jglCaps =(*env)->GetObjectField(env, obj, fglCaps); + } + + if( jglCaps==0 ) + { + fprintf(stderr,"\nGL4Java openOpenGL ERROR: ZERO capsObj was fetched by GetObjectField !\n"); + fflush(stderr); + return JNI_FALSE; + } + + _GLCapabilities= (*env)->FindClass(env, "Lgl4java/GLCapabilities;"); + exc = (*env)->ExceptionOccurred(env); + if(exc) { + if(JNI_TRUE==verbose) + { + fprintf(stderr, "GL4Java: openOpen FindClass gl4java/GLCapabilities failed, cannot check glCaps object\n"); + (*env)->ExceptionDescribe(env); + fflush(stderr); + } + (*env)->ExceptionClear(env); + _GLCapabilities=0; + } + exc=0; + + if( _GLCapabilities!=0 && + (*env)->IsInstanceOf(env, jglCaps, _GLCapabilities)==JNI_FALSE ) + { + fprintf(stderr,"\nGL4Java openOpenGL ERROR: glCaps is not instanceof gl4java/GLCapabilities !\n"); + fflush(stderr); + return JNI_FALSE; + } + + if( JNI_TRUE != javaGLCapabilities2NativeGLCapabilities ( env, jglCaps, &glCaps ) ) + { + fprintf(stderr,"\nGL4Java ERROR: glCaps Object is not valid !\n"); + fflush(stderr); + return JNI_FALSE; + } + + if(ret==JNI_TRUE) { + fcreatewinw = (*env)->GetFieldID(env, cls, "createwinw", "I"); + if (fcreatewinw == 0) ret= JNI_FALSE; + else jcreatewinw =(*env)->GetIntField(env, obj, fcreatewinw); + } + + if(ret==JNI_TRUE) { + fcreatewinh = (*env)->GetFieldID(env, cls, "createwinh", "I"); + if (fcreatewinh == 0) ret= JNI_FALSE; + else jcreatewinh =(*env)->GetIntField(env, obj, fcreatewinh); + } + + if(ret==JNI_TRUE) { + fshareWith = (*env)->GetFieldID(env, cls, "sharedGLContextNative", "J"); + if (fshareWith == 0) ret= JNI_FALSE; + else shareWith = (HGLRC) + ( (PointerHolder)(*env)->GetLongField(env, obj, fshareWith)); + } + + if(ret==JNI_TRUE) { + fpixmapHandle = (*env)->GetFieldID(env, cls, "pixmapHandle", "J"); + if (fpixmapHandle == 0) ret= JNI_FALSE; + } + + if(joffScreenRenderer==JNI_TRUE) + { + glCaps.buffer=BUFFER_SINGLE; + } + + if(JNI_TRUE==verbose && joffScreenRenderer==JNI_TRUE) + { + fprintf(stderr,"\nGL4Java: (USING OFFSCREEN GLPIXMAP BUFFER,\n\t forced: !doubleBuffer)\n"); + fflush(stderr); + } + + disp__wglMakeCurrent(NULL, NULL); + + /** + * with version jdk1.1.6 and later, we are able to use + * the java-function straight to achieve the native window + * handle .... + * + * this handle is saved to pData for the windows version ! + */ + if( pData == 0) + { + printf( "get_GC: Error, pData is zero\n"); + return JNI_FALSE; + } + if( pData != 0 ) + thisWin = (HDC)pData; + + /* get the graphics context for this widget */ + if( (gc = get_GC( &thisWin, &glCaps, shareWith, + joffScreenRenderer, jcreatewinw, jcreatewinh, + &pix, verbose)) == 0 + ) + { + printf( "getGC error" ); + return JNI_FALSE; + } + + /* fetch the states of doubleBuffer and stereo */ + (void) PixelFormatDescriptorFromDc( thisWin, &pfd); + + if(JNI_TRUE==verbose) + { + fprintf(stdout,"\nGL4Java: writing capabilities to GLContext's java object\n"); + fflush(stdout); + } + + if(jglCaps!=0) + (void) nativeGLCapabilities2JavaGLCapabilities (env, jglCaps, &glCaps); + + if(ret==JNI_TRUE && fglCaps && jglCaps) { + (*env)->SetObjectField(env, obj, fglCaps, jglCaps); + } + + if(ret==JNI_TRUE && fwindowHandle!=0) { + (*env)->SetLongField(env, obj, fwindowHandle, + (jlong)((PointerHolder)thisWin)); + if(JNI_TRUE==verbose) + fprintf(stderr, "go and set windowHandle thisWin : %d; 0x%X\n", + (int)thisWin, (int)thisWin); + } + + if(ret==JNI_TRUE && fpixmapHandle!=0) { + (*env)->SetLongField(env, obj, fpixmapHandle, (jlong)((PointerHolder)pix)); + if(JNI_TRUE==verbose) + fprintf(stderr, "go and set pixmapHandle pix: %d; 0x%X\n", + (int)pix, (int)pix); + } + + if(ret==JNI_TRUE && fglContext !=0 ) { + (*env)->SetLongField(env, obj, fglContext, (jlong)((PointerHolder)gc)); + if(JNI_TRUE==verbose) + fprintf(stderr, "go and set gc : %d, 0x%X\n", + (int)gc, (int)gc); + } + + /* + gl4java_bind_ext(JNI_TRUE==verbose); + */ + + return ret; +} + +JNIEXPORT jboolean JNICALL +Java_gl4java_GLContext_gljMakeCurrentNative( JNIEnv *env, jobject obj, + jobject canvas, + jlong disp, + jlong thisWin, + jlong glContext) +{ + jboolean ret = JNI_TRUE; + + (void)canvas; + + if( !thisWin ) + { + return JNI_FALSE; + } + + if( !glContext ) + { + return JNI_FALSE; + } + + if ( ret==JNI_TRUE && !disp__wglMakeCurrent((HDC)((PointerHolder)thisWin), + (HGLRC)((PointerHolder)glContext)) ) + { + return JNI_FALSE; + } + return JNI_TRUE; +} + +JNIEXPORT jboolean JNICALL +Java_gl4java_GLContext_gljFreeNative( JNIEnv *env, jobject obj, + jobject canvas, + jlong disp, + jlong thisWin, + jlong glContext + ) +{ + (void)thisWin; + (void)glContext; + (void)disp; + (void)canvas; + + if ( ! disp__wglMakeCurrent( NULL, NULL ) ) + { + fprintf(stderr, "gljFree failed\n"); + fflush(stderr); + return JNI_FALSE; + } + return JNI_TRUE; +} + +JNIEXPORT jboolean JNICALL +Java_gl4java_GLContext_gljDestroyNative( JNIEnv *env, jobject obj, + jobject canvas) +{ + jboolean ret = JNI_TRUE; + + jclass cls = 0; + jfieldID fwindowHandle=0, fpixmapHandle=0; + jfieldID fglContext=0; + jfieldID foffScreenRenderer=0; + jfieldID fownwind=0; + + jboolean jownwind = JNI_FALSE ; + jboolean joffScreenRenderer=JNI_FALSE; + HBITMAP pix=0; + HDC thisWin=0; + HGLRC gc=0; + + + (void)canvas; + + cls = (*env)->GetObjectClass(env, obj); + if(cls==0) + { + ret=JNI_FALSE; + } + + if(ret==JNI_TRUE) { + fwindowHandle = (*env)->GetFieldID(env, cls, "windowHandle", "J"); + if (fwindowHandle == 0) ret= JNI_FALSE; + else thisWin =(HDC) + ((PointerHolder)(*env)->GetLongField(env, obj, fwindowHandle)); + } + + if(ret==JNI_TRUE) { + fglContext=(*env)->GetFieldID(env, cls, "glContext", "J"); + if (fglContext == 0) ret= JNI_FALSE; + else gc =(HGLRC) + ((PointerHolder)(*env)->GetLongField(env, obj, fglContext)); + } + + + if(ret==JNI_TRUE) { + fpixmapHandle = (*env)->GetFieldID(env, cls, "pixmapHandle", "J"); + if (fpixmapHandle == 0) ret= JNI_FALSE; + else pix =(HBITMAP) + ((PointerHolder)(*env)->GetLongField(env, obj, fpixmapHandle)); + } + + if(ret==JNI_TRUE) { + foffScreenRenderer = + (*env)->GetFieldID(env, cls, "offScreenRenderer", "Z"); + if (foffScreenRenderer == 0) ret= JNI_FALSE; + else joffScreenRenderer =(*env)->GetBooleanField(env, obj, foffScreenRenderer); + } + + if(ret==JNI_TRUE) { + fownwind = (*env)->GetFieldID(env, cls, "createOwnWindow", "Z"); + if (fownwind == 0) ret= JNI_FALSE; + else jownwind =(*env)->GetBooleanField(env, obj, fownwind); + } + + if(ret==JNI_TRUE) + { + if ( gc == 0 ) + { + if(JNI_TRUE==verbose) + { + fprintf(stderr, "gljDestroy error, GL context is 0\n"); + fflush(stderr); + } + } + + if ( ! disp__wglMakeCurrent( NULL, NULL ) ) + { + fprintf(stderr, "gljDestroy failed (free)\n"); + fflush(stderr); + } + + if(ret==JNI_TRUE) + { + if(gc!=0) + disp__wglDeleteContext(gc); + + if(pix!=0) + { + if(thisWin!=0) + DeleteDC(thisWin); + thisWin=0; + DeleteObject(pix); + pix=0; + } + if(jownwind && thisWin!=0) + { + DeleteDC(thisWin); + thisWin=0; + jownwind=JNI_FALSE; + } + } + } + + gc = 0; + thisWin = 0; + + ret=JNI_TRUE; + + if(ret==JNI_TRUE && fwindowHandle!=0) { + (*env)->SetLongField(env, obj, fwindowHandle, (jlong)((PointerHolder)thisWin)); + } + + if(ret==JNI_TRUE && fglContext) { + (*env)->SetLongField(env, obj, fglContext, (jlong)((PointerHolder)gc)); + } + + + if(ret==JNI_TRUE && fpixmapHandle!=0) { + (*env)->SetLongField(env, obj, fpixmapHandle, (jlong)((PointerHolder)pix)); + } + + if(ret==JNI_TRUE && fownwind) { + (*env)->SetBooleanField(env, obj, fownwind, jownwind); + } + + return ret; +} + +JNIEXPORT jboolean JNICALL +Java_gl4java_GLContext_gljSwapNative( JNIEnv *env, jobject obj, + jlong disp, + jlong thisWin, + jlong glContext, + jboolean doubleBuffer + ) +{ + jboolean ret = JNI_TRUE; + + (void)glContext; + (void)disp; + + if( !thisWin ) + { + fprintf(stderr,"Swap does not got the window ...\n"); + return JNI_FALSE; + } + + if( doubleBuffer==JNI_TRUE ) + { + if( SwapBuffers( (HDC)((PointerHolder)thisWin) ) == FALSE ) + { + /* Error in Win2000 implementation :o) + * printf( "Error in swap buffer!\n" ); + */ + return JNI_FALSE; + } + } else { + disp__glFlush(); + } + return ret; +} + +JNIEXPORT void JNICALL +Java_gl4java_GLContext_gljResizeNative( JNIEnv *env, jobject obj, + jboolean isOwnWindow, + jlong disp, jlong thisWin, + jint width, jint height) +{ + (void)isOwnWindow; + (void)disp; + (void)thisWin; + (void)width; + (void)height; + + return; +} + |