alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Java example source code file (CGLSurfaceData.m)

This example Java source code file (CGLSurfaceData.m) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

cglctxinfo, cglgraphicsconfiginfo, cglsdops, cglsurfacedata_initpbuffer, j2drlstraceln, j2dtraceln, jnf_cocoa_enter, jnf_cocoa_exit, jni_false, jni_true, null, oglcontext, oglsd_initoglwindow, oglsdops

The CGLSurfaceData.m Java example source code

/*
 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

#import <stdlib.h>
#import <JavaNativeFoundation/JavaNativeFoundation.h>

#import "sun_java2d_opengl_CGLSurfaceData.h"

#import "jni.h"
#import "jni_util.h"
#import "OGLRenderQueue.h"
#import "CGLGraphicsConfig.h"
#import "CGLSurfaceData.h"
#import "CGLLayer.h"
#import "ThreadUtilities.h"

/* JDK's glext.h is already included and will prevent the Apple glext.h
 * being included, so define the externs directly
 */
extern void glBindFramebufferEXT(GLenum target, GLuint framebuffer);
extern CGLError CGLTexImageIOSurface2D(
        CGLContextObj ctx, GLenum target, GLenum internal_format,
        GLsizei width, GLsizei height, GLenum format, GLenum type,
        IOSurfaceRef ioSurface, GLuint plane);

/**
 * The methods in this file implement the native windowing system specific
 * layer (CGL) for the OpenGL-based Java 2D pipeline.
 */

#pragma mark -
#pragma mark "--- Mac OS X specific methods for GL pipeline ---"

// TODO: hack that's called from OGLRenderQueue to test out unlockFocus behavior
#if 0
void
OGLSD_UnlockFocus(OGLContext *oglc, OGLSDOps *dstOps)
{
    CGLCtxInfo *ctxinfo = (CGLCtxInfo *)oglc->ctxInfo;
    CGLSDOps *cglsdo = (CGLSDOps *)dstOps->privOps;
    fprintf(stderr, "about to unlock focus: %p %p\n",
            cglsdo->peerData, ctxinfo->context);

    NSOpenGLView *nsView = cglsdo->peerData;
    if (nsView != NULL) {
JNF_COCOA_ENTER(env);
        [nsView unlockFocus];
JNF_COCOA_EXIT(env);
    }
}
#endif

/**
 * Makes the given context current to its associated "scratch" surface.  If
 * the operation is successful, this method will return JNI_TRUE; otherwise,
 * returns JNI_FALSE.
 */
static jboolean
CGLSD_MakeCurrentToScratch(JNIEnv *env, OGLContext *oglc)
{
    J2dTraceLn(J2D_TRACE_INFO, "CGLSD_MakeCurrentToScratch");

    if (oglc == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
                      "CGLSD_MakeCurrentToScratch: context is null");
        return JNI_FALSE;
    }

JNF_COCOA_ENTER(env);

    CGLCtxInfo *ctxinfo = (CGLCtxInfo *)oglc->ctxInfo;
#if USE_NSVIEW_FOR_SCRATCH
    [ctxinfo->context makeCurrentContext];
    [ctxinfo->context setView: ctxinfo->scratchSurface];
#else
    [ctxinfo->context clearDrawable];
    [ctxinfo->context makeCurrentContext];
    [ctxinfo->context setPixelBuffer: ctxinfo->scratchSurface
            cubeMapFace: 0
            mipMapLevel: 0
            currentVirtualScreen: [ctxinfo->context currentVirtualScreen]];
#endif

JNF_COCOA_EXIT(env);

    return JNI_TRUE;
}

/**
 * This function disposes of any native windowing system resources associated
 * with this surface.  For instance, if the given OGLSDOps is of type
 * OGLSD_PBUFFER, this method implementation will destroy the actual pbuffer
 * surface.
 */
void
OGLSD_DestroyOGLSurface(JNIEnv *env, OGLSDOps *oglsdo)
{
    J2dTraceLn(J2D_TRACE_INFO, "OGLSD_DestroyOGLSurface");

JNF_COCOA_ENTER(env);

    CGLSDOps *cglsdo = (CGLSDOps *)oglsdo->privOps;
    if (oglsdo->drawableType == OGLSD_PBUFFER) {
        if (oglsdo->textureID != 0) {
            j2d_glDeleteTextures(1, &oglsdo->textureID);
            oglsdo->textureID = 0;
        }
        if (cglsdo->pbuffer != NULL) {
            [cglsdo->pbuffer release];
            cglsdo->pbuffer = NULL;
        }
    } else if (oglsdo->drawableType == OGLSD_WINDOW) {
        // detach the NSView from the NSOpenGLContext
        CGLGraphicsConfigInfo *cglInfo = cglsdo->configInfo;
        OGLContext *oglc = cglInfo->context;
        CGLCtxInfo *ctxinfo = (CGLCtxInfo *)oglc->ctxInfo;
        [ctxinfo->context clearDrawable];
    }

    oglsdo->drawableType = OGLSD_UNDEFINED;

JNF_COCOA_EXIT(env);
}

/**
 * Returns a pointer (as a jlong) to the native CGLGraphicsConfigInfo
 * associated with the given OGLSDOps.  This method can be called from
 * shared code to retrieve the native GraphicsConfig data in a platform-
 * independent manner.
 */
jlong
OGLSD_GetNativeConfigInfo(OGLSDOps *oglsdo)
{
    J2dTraceLn(J2D_TRACE_INFO, "OGLSD_GetNativeConfigInfo");

    if (oglsdo == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR, "OGLSD_GetNativeConfigInfo: ops are null");
        return 0L;
    }

    CGLSDOps *cglsdo = (CGLSDOps *)oglsdo->privOps;
    if (cglsdo == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR, "OGLSD_GetNativeConfigInfo: cgl ops are null");
        return 0L;
    }

    return ptr_to_jlong(cglsdo->configInfo);
}

/**
 * Makes the given GraphicsConfig's context current to its associated
 * "scratch" surface.  If there is a problem making the context current,
 * this method will return NULL; otherwise, returns a pointer to the
 * OGLContext that is associated with the given GraphicsConfig.
 */
OGLContext *
OGLSD_SetScratchSurface(JNIEnv *env, jlong pConfigInfo)
{
    J2dTraceLn(J2D_TRACE_INFO, "OGLSD_SetScratchContext");

    CGLGraphicsConfigInfo *cglInfo = (CGLGraphicsConfigInfo *)jlong_to_ptr(pConfigInfo);
    if (cglInfo == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR, "OGLSD_SetScratchContext: cgl config info is null");
        return NULL;
    }

    OGLContext *oglc = cglInfo->context;
    CGLCtxInfo *ctxinfo = (CGLCtxInfo *)oglc->ctxInfo;

JNF_COCOA_ENTER(env);

    // avoid changing the context's target view whenever possible, since
    // calling setView causes flickering; as long as our context is current
    // to some view, it's not necessary to switch to the scratch surface
    if ([ctxinfo->context view] == nil) {
        // it seems to be necessary to explicitly flush between context changes
        OGLContext *currentContext = OGLRenderQueue_GetCurrentContext();
        if (currentContext != NULL) {
            j2d_glFlush();
        }

        if (!CGLSD_MakeCurrentToScratch(env, oglc)) {
            return NULL;
        }
    // make sure our context is current
    } else if ([NSOpenGLContext currentContext] != ctxinfo->context) {
        [ctxinfo->context makeCurrentContext];
    }

    if (OGLC_IS_CAP_PRESENT(oglc, CAPS_EXT_FBOBJECT)) {
        // the GL_EXT_framebuffer_object extension is present, so this call
        // will ensure that we are bound to the scratch surface (and not
        // some other framebuffer object)
        j2d_glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
    }

JNF_COCOA_EXIT(env);

    return oglc;
}

/**
 * Makes a context current to the given source and destination
 * surfaces.  If there is a problem making the context current, this method
 * will return NULL; otherwise, returns a pointer to the OGLContext that is
 * associated with the destination surface.
 */
OGLContext *
OGLSD_MakeOGLContextCurrent(JNIEnv *env, OGLSDOps *srcOps, OGLSDOps *dstOps)
{
    J2dTraceLn(J2D_TRACE_INFO, "OGLSD_MakeOGLContextCurrent");

    CGLSDOps *dstCGLOps = (CGLSDOps *)dstOps->privOps;

    J2dTraceLn4(J2D_TRACE_VERBOSE, "  src: %d %p dst: %d %p", srcOps->drawableType, srcOps, dstOps->drawableType, dstOps);

    OGLContext *oglc = dstCGLOps->configInfo->context;
    if (oglc == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR, "OGLSD_MakeOGLContextCurrent: context is null");
        return NULL;
    }

    CGLCtxInfo *ctxinfo = (CGLCtxInfo *)oglc->ctxInfo;

    // it seems to be necessary to explicitly flush between context changes
    OGLContext *currentContext = OGLRenderQueue_GetCurrentContext();
    if (currentContext != NULL) {
        j2d_glFlush();
    }

    if (dstOps->drawableType == OGLSD_FBOBJECT) {
        // first make sure we have a current context (if the context isn't
        // already current to some drawable, we will make it current to
        // its scratch surface)
        if (oglc != currentContext) {
            if (!CGLSD_MakeCurrentToScratch(env, oglc)) {
                return NULL;
            }
        }

        // now bind to the fbobject associated with the destination surface;
        // this means that all rendering will go into the fbobject destination
        // (note that we unbind the currently bound texture first; this is
        // recommended procedure when binding an fbobject)
        j2d_glBindTexture(GL_TEXTURE_2D, 0);
        j2d_glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, dstOps->fbobjectID);

        return oglc;
    }

JNF_COCOA_ENTER(env);

    // set the current surface
    if (dstOps->drawableType == OGLSD_PBUFFER) {
        // REMIND: pbuffers are not fully tested yet...
        [ctxinfo->context clearDrawable];
        [ctxinfo->context makeCurrentContext];
        [ctxinfo->context setPixelBuffer: dstCGLOps->pbuffer
                cubeMapFace: 0
                mipMapLevel: 0
                currentVirtualScreen: [ctxinfo->context currentVirtualScreen]];
    } else {
        CGLSDOps *cglsdo = (CGLSDOps *)dstOps->privOps;
        NSView *nsView = (NSView *)cglsdo->peerData;

        if ([ctxinfo->context view] != nsView) {
            [ctxinfo->context makeCurrentContext];
            [ctxinfo->context setView: nsView];
        }
    }

    if (OGLC_IS_CAP_PRESENT(oglc, CAPS_EXT_FBOBJECT)) {
        // the GL_EXT_framebuffer_object extension is present, so we
        // must bind to the default (windowing system provided)
        // framebuffer
        j2d_glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
    }

    if ((srcOps != dstOps) && (srcOps->drawableType == OGLSD_PBUFFER)) {
        // bind pbuffer to the render texture object (since we are preparing
        // to copy from the pbuffer)
        CGLSDOps *srcCGLOps = (CGLSDOps *)srcOps->privOps;
        j2d_glBindTexture(GL_TEXTURE_2D, srcOps->textureID);
        [ctxinfo->context
                setTextureImageToPixelBuffer: srcCGLOps->pbuffer
                colorBuffer: GL_FRONT];
    }

JNF_COCOA_EXIT(env);

    return oglc;
}

/**
 * This function initializes a native window surface and caches the window
 * bounds in the given OGLSDOps.  Returns JNI_TRUE if the operation was
 * successful; JNI_FALSE otherwise.
 */
jboolean
OGLSD_InitOGLWindow(JNIEnv *env, OGLSDOps *oglsdo)
{
    J2dTraceLn(J2D_TRACE_INFO, "OGLSD_InitOGLWindow");

    if (oglsdo == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR, "OGLSD_InitOGLWindow: ops are null");
        return JNI_FALSE;
    }

    CGLSDOps *cglsdo = (CGLSDOps *)oglsdo->privOps;
    if (cglsdo == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR, "OGLSD_InitOGLWindow: cgl ops are null");
        return JNI_FALSE;
    }

    AWTView *v = cglsdo->peerData;
    if (v == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR, "OGLSD_InitOGLWindow: view is invalid");
        return JNI_FALSE;
    }

JNF_COCOA_ENTER(env);
    NSRect surfaceBounds = [v bounds];
    oglsdo->drawableType = OGLSD_WINDOW;
    oglsdo->isOpaque = JNI_TRUE;
    oglsdo->width = surfaceBounds.size.width;
    oglsdo->height = surfaceBounds.size.height;
JNF_COCOA_EXIT(env);

    J2dTraceLn2(J2D_TRACE_VERBOSE, "  created window: w=%d h=%d", oglsdo->width, oglsdo->height);

    return JNI_TRUE;
}

void
OGLSD_SwapBuffers(JNIEnv *env, jlong pPeerData)
{
    J2dTraceLn(J2D_TRACE_INFO, "OGLSD_SwapBuffers");

JNF_COCOA_ENTER(env);
    [[NSOpenGLContext currentContext] flushBuffer];
JNF_COCOA_EXIT(env);
}

void
OGLSD_Flush(JNIEnv *env)
{
    OGLSDOps *dstOps = OGLRenderQueue_GetCurrentDestination();
    if (dstOps != NULL) {
        CGLSDOps *dstCGLOps = (CGLSDOps *)dstOps->privOps;
        CGLLayer *layer = (CGLLayer*)dstCGLOps->layer;
        if (layer != NULL) {
            [JNFRunLoop performOnMainThreadWaiting:NO withBlock:^(){
                AWT_ASSERT_APPKIT_THREAD;
                [layer setNeedsDisplay];

#ifdef REMOTELAYER
                /* If there's a remote layer (being used for testing)
                 * then we want to have that also receive the texture.
                 * First sync. up its dimensions with that of the layer
                 * we have attached to the local window and tell it that
                 * it also needs to copy the texture.
                 */
                if (layer.remoteLayer != nil) {
                    CGLLayer* remoteLayer = layer.remoteLayer;
                    remoteLayer.target = GL_TEXTURE_2D;
                    remoteLayer.textureID = layer.textureID;
                    remoteLayer.textureWidth = layer.textureWidth;
                    remoteLayer.textureHeight = layer.textureHeight;
                    [remoteLayer setNeedsDisplay];
                }
#endif /* REMOTELAYER */
            }];
        }
    }
}

#pragma mark -
#pragma mark "--- CGLSurfaceData methods ---"

extern LockFunc        OGLSD_Lock;
extern GetRasInfoFunc  OGLSD_GetRasInfo;
extern UnlockFunc      OGLSD_Unlock;
extern DisposeFunc     OGLSD_Dispose;

JNIEXPORT void JNICALL
Java_sun_java2d_opengl_CGLSurfaceData_initOps
    (JNIEnv *env, jobject cglsd,
     jlong pConfigInfo, jlong pPeerData, jlong layerPtr,
     jint xoff, jint yoff, jboolean isOpaque)
{
    J2dTraceLn(J2D_TRACE_INFO, "CGLSurfaceData_initOps");
    J2dTraceLn1(J2D_TRACE_INFO, "  pPeerData=%p", jlong_to_ptr(pPeerData));
    J2dTraceLn2(J2D_TRACE_INFO, "  xoff=%d, yoff=%d", (int)xoff, (int)yoff);

    OGLSDOps *oglsdo = (OGLSDOps *)
        SurfaceData_InitOps(env, cglsd, sizeof(OGLSDOps));
    CGLSDOps *cglsdo = (CGLSDOps *)malloc(sizeof(CGLSDOps));
    if (cglsdo == NULL) {
        JNU_ThrowOutOfMemoryError(env, "creating native cgl ops");
        return;
    }

    oglsdo->privOps = cglsdo;

    oglsdo->sdOps.Lock               = OGLSD_Lock;
    oglsdo->sdOps.GetRasInfo         = OGLSD_GetRasInfo;
    oglsdo->sdOps.Unlock             = OGLSD_Unlock;
    oglsdo->sdOps.Dispose            = OGLSD_Dispose;

    oglsdo->drawableType = OGLSD_UNDEFINED;
    oglsdo->activeBuffer = GL_FRONT;
    oglsdo->needsInit = JNI_TRUE;
    oglsdo->xOffset = xoff;
    oglsdo->yOffset = yoff;
    oglsdo->isOpaque = isOpaque;

    cglsdo->peerData = (AWTView *)jlong_to_ptr(pPeerData);
    cglsdo->layer = (CGLLayer *)jlong_to_ptr(layerPtr);
    cglsdo->configInfo = (CGLGraphicsConfigInfo *)jlong_to_ptr(pConfigInfo);

    if (cglsdo->configInfo == NULL) {
        free(cglsdo);
        JNU_ThrowNullPointerException(env, "Config info is null in initOps");
    }
}

JNIEXPORT void JNICALL
Java_sun_java2d_opengl_CGLSurfaceData_clearWindow
(JNIEnv *env, jobject cglsd)
{
    J2dTraceLn(J2D_TRACE_INFO, "CGLSurfaceData_clearWindow");

    OGLSDOps *oglsdo = (OGLSDOps*) SurfaceData_GetOps(env, cglsd);
    CGLSDOps *cglsdo = (CGLSDOps*) oglsdo->privOps;

    cglsdo->peerData = NULL;
    cglsdo->layer = NULL;
}

JNIEXPORT jboolean JNICALL
Java_sun_java2d_opengl_CGLSurfaceData_initPbuffer
    (JNIEnv *env, jobject cglsd,
     jlong pData, jlong pConfigInfo, jboolean isOpaque,
     jint width, jint height)
{
    J2dTraceLn3(J2D_TRACE_INFO, "CGLSurfaceData_initPbuffer: w=%d h=%d opq=%d", width, height, isOpaque);

    OGLSDOps *oglsdo = (OGLSDOps *)jlong_to_ptr(pData);
    if (oglsdo == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR, "CGLSurfaceData_initPbuffer: ops are null");
        return JNI_FALSE;
    }

    CGLSDOps *cglsdo = (CGLSDOps *)oglsdo->privOps;
    if (cglsdo == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR, "CGLSurfaceData_initPbuffer: cgl ops are null");
        return JNI_FALSE;
    }

    CGLGraphicsConfigInfo *cglInfo = (CGLGraphicsConfigInfo *)
        jlong_to_ptr(pConfigInfo);
    if (cglInfo == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR, "CGLSurfaceData_initPbuffer: cgl config info is null");
        return JNI_FALSE;
    }

    // find the maximum allowable texture dimensions (this value ultimately
    // determines our maximum pbuffer size)
    int pbMax = 0;
    j2d_glGetIntegerv(GL_MAX_TEXTURE_SIZE, &pbMax);

    int pbWidth = 0;
    int pbHeight = 0;
    if (OGLC_IS_CAP_PRESENT(cglInfo->context, CAPS_TEXNONPOW2)) {
        // use non-power-of-two dimensions directly
        pbWidth = (width <= pbMax) ? width : 0;
        pbHeight = (height <= pbMax) ? height : 0;
    } else {
        // find the appropriate power-of-two dimensions
        pbWidth = OGLSD_NextPowerOfTwo(width, pbMax);
        pbHeight = OGLSD_NextPowerOfTwo(height, pbMax);
    }

    J2dTraceLn3(J2D_TRACE_VERBOSE, "  desired pbuffer dimensions: w=%d h=%d max=%d", pbWidth, pbHeight, pbMax);

    // if either dimension is 0, we cannot allocate a pbuffer/texture with the
    // requested dimensions
    if (pbWidth == 0 || pbHeight == 0) {
        J2dRlsTraceLn(J2D_TRACE_ERROR, "CGLSurfaceData_initPbuffer: dimensions too large");
        return JNI_FALSE;
    }

    int format = isOpaque ? GL_RGB : GL_RGBA;

JNF_COCOA_ENTER(env);

    cglsdo->pbuffer =
        [[NSOpenGLPixelBuffer alloc]
            initWithTextureTarget: GL_TEXTURE_2D
            textureInternalFormat: format
            textureMaxMipMapLevel: 0
            pixelsWide: pbWidth
            pixelsHigh: pbHeight];
    if (cglsdo->pbuffer == nil) {
        J2dRlsTraceLn(J2D_TRACE_ERROR, "CGLSurfaceData_initPbuffer: could not create pbuffer");
        return JNI_FALSE;
    }

    // make sure the actual dimensions match those that we requested
    GLsizei actualWidth  = [cglsdo->pbuffer pixelsWide];
    GLsizei actualHeight = [cglsdo->pbuffer pixelsHigh];
    if (actualWidth != pbWidth || actualHeight != pbHeight) {
        J2dRlsTraceLn2(J2D_TRACE_ERROR, "CGLSurfaceData_initPbuffer: actual (w=%d h=%d) != requested", actualWidth, actualHeight);
        [cglsdo->pbuffer release];
        return JNI_FALSE;
    }

    GLuint texID = 0;
    j2d_glGenTextures(1, &texID);
    j2d_glBindTexture(GL_TEXTURE_2D, texID);

    oglsdo->drawableType = OGLSD_PBUFFER;
    oglsdo->isOpaque = isOpaque;
    oglsdo->width = width;
    oglsdo->height = height;
    oglsdo->textureID = texID;
    oglsdo->textureWidth = pbWidth;
    oglsdo->textureHeight = pbHeight;
    oglsdo->activeBuffer = GL_FRONT;
    oglsdo->needsInit = JNI_TRUE;

    OGLSD_INIT_TEXTURE_FILTER(oglsdo, GL_NEAREST);

JNF_COCOA_EXIT(env);

    return JNI_TRUE;
}

#pragma mark -
#pragma mark "--- CGLSurfaceData methods - Mac OS X specific ---"

// Must be called on the QFT...
JNIEXPORT void JNICALL
Java_sun_java2d_opengl_CGLSurfaceData_validate
    (JNIEnv *env, jobject jsurfacedata,
     jint xoff, jint yoff, jint width, jint height, jboolean isOpaque)
{
    J2dTraceLn2(J2D_TRACE_INFO, "CGLSurfaceData_validate: w=%d h=%d", width, height);

    OGLSDOps *oglsdo = (OGLSDOps*)SurfaceData_GetOps(env, jsurfacedata);
    oglsdo->needsInit = JNI_TRUE;
    oglsdo->xOffset = xoff;
    oglsdo->yOffset = yoff;

    oglsdo->width = width;
    oglsdo->height = height;
    oglsdo->isOpaque = isOpaque;

    if (oglsdo->drawableType == OGLSD_WINDOW) {
        OGLContext_SetSurfaces(env, ptr_to_jlong(oglsdo), ptr_to_jlong(oglsdo));

        // we have to explicitly tell the NSOpenGLContext that its target
        // drawable has changed size
        CGLSDOps *cglsdo = (CGLSDOps *)oglsdo->privOps;
        OGLContext *oglc = cglsdo->configInfo->context;
        CGLCtxInfo *ctxinfo = (CGLCtxInfo *)oglc->ctxInfo;

JNF_COCOA_ENTER(env);
        [ctxinfo->context update];
JNF_COCOA_EXIT(env);
    }
}

Other Java examples (source code examples)

Here is a short list of links related to this Java CGLSurfaceData.m source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2024 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.