/*
* Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
* Copyright (c) 2010 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
* MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
* ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
* DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed or intended for use
* in the design, construction, operation or maintenance of any nuclear
* facility.
*
* Sun gratefully acknowledges that this software was originally authored
* and developed by Kenneth Bradley Russell and Christopher John Kline.
*/
package jogamp.opengl.macosx.cgl;
import java.nio.ByteBuffer;
import java.util.Map;
import javax.media.nativewindow.AbstractGraphicsConfiguration;
import javax.media.nativewindow.AbstractGraphicsDevice;
import javax.media.nativewindow.NativeSurface;
import javax.media.nativewindow.NativeWindowFactory;
import javax.media.nativewindow.OffscreenLayerSurface;
import javax.media.nativewindow.ProxySurface;
import javax.media.opengl.GLCapabilitiesImmutable;
import javax.media.opengl.GLContext;
import javax.media.opengl.GLException;
import javax.media.opengl.GLProfile;
import jogamp.nativewindow.macosx.OSXUtil;
import jogamp.opengl.GLContextImpl;
import jogamp.opengl.GLDrawableImpl;
import jogamp.opengl.GLGraphicsConfigurationUtil;
import jogamp.opengl.macosx.cgl.MacOSXCGLDrawable.GLBackendType;
import com.jogamp.common.nio.PointerBuffer;
import com.jogamp.common.os.Platform;
import com.jogamp.common.util.VersionNumber;
import com.jogamp.gluegen.runtime.ProcAddressTable;
import com.jogamp.gluegen.runtime.opengl.GLProcAddressResolver;
import com.jogamp.opengl.GLExtensions;
public abstract class MacOSXCGLContext extends GLContextImpl
{
// Abstract interface for implementation of this context (either
// NSOpenGL-based or CGL-based)
protected interface GLBackendImpl {
boolean isNSContext();
long create(long share, int ctp, int major, int minor);
boolean destroy(long ctx);
boolean copyImpl(long src, int mask);
boolean makeCurrent(long ctx);
boolean release(long ctx);
boolean setSwapInterval(int interval);
boolean swapBuffers();
}
/* package */ static final boolean isTigerOrLater;
/* package */ static final boolean isLionOrLater;
static {
final VersionNumber osvn = Platform.getOSVersionNumber();
isTigerOrLater = osvn.getMajor() > 10 || ( osvn.getMajor() == 10 && osvn.getMinor() >= 4 );
isLionOrLater = osvn.getMajor() > 10 || ( osvn.getMajor() == 10 && osvn.getMinor() >= 7 );
}
static boolean isGLProfileSupported(int ctp, int major, int minor) {
boolean ctBwdCompat = 0 != ( CTX_PROFILE_COMPAT & ctp ) ;
boolean ctCore = 0 != ( CTX_PROFILE_CORE & ctp ) ;
// We exclude 3.0, since we would map it's core to GL2. Hence we force mapping 2.1 to GL2
if(3==major && 1<=minor && minor<=2) {
// [3.1..3.2] -> GL3*
if(!isLionOrLater) {
// no GL3* on pre lion
return false;
}
if(ctBwdCompat) {
// no compatibility profile on OS X
return false;
}
return ctCore;
} else if(major<3) {
// < 3.0 -> GL2
return true;
}
return false; // 3.0 && > 3.2
}
static int GLProfile2CGLOGLProfileValue(int ctp, int major, int minor) {
if(!MacOSXCGLContext.isGLProfileSupported(ctp, major, minor)) {
throw new GLException("OpenGL profile not supported: "+getGLVersion(major, minor, ctp, "@GLProfile2CGLOGLProfileVersion"));
}
boolean ctCore = 0 != ( CTX_PROFILE_CORE & ctp ) ;
if( major == 3 && minor >= 1 && ctCore ) {
return CGL.kCGLOGLPVersion_3_2_Core;
} else {
return CGL.kCGLOGLPVersion_Legacy;
}
}
private boolean haveSetOpenGLMode = false;
private GLBackendType openGLMode = GLBackendType.NSOPENGL;
// Implementation object (either NSOpenGL-based or CGL-based)
protected GLBackendImpl impl;
private CGLExt _cglExt;
// Table that holds the addresses of the native C-language entry points for
// CGL extension functions.
private CGLExtProcAddressTable cglExtProcAddressTable;
protected MacOSXCGLContext(GLDrawableImpl drawable,
GLContext shareWith) {
super(drawable, shareWith);
initOpenGLImpl(getOpenGLMode());
}
@Override
protected void resetStates() {
// no inner state _cglExt = null;
cglExtProcAddressTable = null;
super.resetStates();
}
@Override
public Object getPlatformGLExtensions() {
return getCGLExt();
}
protected boolean isNSContext() {
return (null != impl) ? impl.isNSContext() : this.openGLMode == GLBackendType.NSOPENGL;
}
public CGLExt getCGLExt() {
if (_cglExt == null) {
_cglExt = new CGLExtImpl(this);
}
return _cglExt;
}
@Override
public final ProcAddressTable getPlatformExtProcAddressTable() {
return getCGLExtProcAddressTable();
}
public final CGLExtProcAddressTable getCGLExtProcAddressTable() {
return cglExtProcAddressTable;
}
@Override
protected Map<String, String> getFunctionNameMap() { return null; }
@Override
protected Map<String, String> getExtensionNameMap() { return null; }
@Override
protected long createContextARBImpl(long share, boolean direct, int ctp, int major, int minor) {
if(!isGLProfileSupported(ctp, major, minor)) {
if(DEBUG) {
System.err.println(getThreadName() + ": createContextARBImpl: Not supported "+getGLVersion(major, minor, ctp, "@creation on OSX "+Platform.getOSVersionNumber()));
}
return 0;
}
// Will throw exception upon error
long ctx = impl.create(share, ctp, major, minor);
if(0 != ctx) {
if (!impl.makeCurrent(ctx)) {
if(DEBUG) {
System.err.println(getThreadName() + ": createContextARB couldn't make current "+getGLVersion(major, minor, ctp, "@creation"));
}
impl.release(ctx);
impl.destroy(ctx);
ctx = 0;
} else if(DEBUG) {
System.err.println(getThreadName() + ": createContextARBImpl: OK "+getGLVersion(major, minor, ctp, "@creation")+", share "+share+", direct "+direct+" on OSX "+Platform.getOSVersionNumber());
}
} else if(DEBUG) {
System.err.println(getThreadName() + ": createContextARBImpl: NO "+getGLVersion(major, minor, ctp, "@creation on OSX "+Platform.getOSVersionNumber()));
}
return ctx;
}
@Override
protected void destroyContextARBImpl(long _context) {
impl.release(_context);
impl.destroy(_context);
}
@Override
public final boolean isGLReadDrawableAvailable() {
return false;
}
protected long createImplPreset(GLContextImpl shareWith) throws GLException {
long share = 0;
if (shareWith != null) {
// Change our OpenGL mode to match that of any share context before we create ourselves
setOpenGLMode(((MacOSXCGLContext)shareWith).getOpenGLMode());
share = shareWith.getHandle();
if (share == 0) {
throw new GLException("GLContextShareSet returned a NULL OpenGL context");
}
}
MacOSXCGLGraphicsConfiguration config = (MacOSXCGLGraphicsConfiguration) drawable.getNativeSurface().getGraphicsConfiguration();
GLCapabilitiesImmutable capabilitiesChosen = (GLCapabilitiesImmutable) config.getChosenCapabilities();
if (capabilitiesChosen.getPbufferFloatingPointBuffers() && !isTigerOrLater) {
throw new GLException("Floating-point pbuffers supported only on OS X 10.4 or later");
}
GLProfile glp = capabilitiesChosen.getGLProfile();
if(glp.isGLES1() || glp.isGLES2() || glp.isGL4() || glp.isGL3() && !isLionOrLater) {
throw new GLException("OpenGL profile not supported on MacOSX "+Platform.getOSVersionNumber()+": "+glp);
}
if (DEBUG) {
System.err.println("Share context is " + toHexString(share) + " for " + this);
}
return share;
}
@Override
protected boolean createImpl(GLContextImpl shareWith) throws GLException {
long share = createImplPreset(shareWith);
contextHandle = createContextARB(share, true);
return 0 != contextHandle;
}
@Override
protected void makeCurrentImpl() throws GLException {
/** FIXME: won't work w/ special drawables (like FBO) - check for CGL mode regressions!
*
if (getOpenGLMode() != ((MacOSXCGLDrawable)drawable).getOpenGLMode()) {
setOpenGLMode(((MacOSXCGLDrawable)drawable).getOpenGLMode());
} */
if (!impl.makeCurrent(contextHandle)) {
throw new GLException("Error making Context current: "+this);
}
}
@Override
protected void releaseImpl() throws GLException {
if (!impl.release(contextHandle)) {
throw new GLException("Error releasing OpenGL Context: "+this);
}
}
@Override
protected void destroyImpl() throws GLException {
if(!impl.destroy(contextHandle)) {
throw new GLException("Error destroying OpenGL Context: "+this);
}
}
@Override
protected void copyImpl(GLContext source, int mask) throws GLException {
if( isNSContext() != ((MacOSXCGLContext)source).isNSContext() ) {
throw new GLException("Source/Destination OpenGL Context tyoe mismatch: source "+source+", dest: "+this);
}
if(!impl.copyImpl(source.getHandle(), mask)) {
throw new GLException("Error copying OpenGL Context: source "+source+", dest: "+this);
}
}
protected void swapBuffers() {
// single-buffer is already filtered out @ GLDrawableImpl#swapBuffers()
if(!impl.swapBuffers()) {
throw new GLException("Error swapping buffers: "+this);
}
}
@Override
protected boolean setSwapIntervalImpl(int interval) {
return impl.setSwapInterval(interval);
}
@Override
public ByteBuffer glAllocateMemoryNV(int arg0, float arg1, float arg2, float arg3) {
// FIXME: apparently the Apple extension doesn't require a custom memory allocator
throw new GLException("Not yet implemented");
}
@Override
protected final void updateGLXProcAddressTable() {
final AbstractGraphicsConfiguration aconfig = drawable.getNativeSurface().getGraphicsConfiguration();
final AbstractGraphicsDevice adevice = aconfig.getScreen().getDevice();
final String key = "MacOSX-"+adevice.getUniqueID();
if (DEBUG) {
System.err.println(getThreadName() + ": Initializing CGL extension address table: "+key);
}
ProcAddressTable table = null;
synchronized(mappedContextTypeObjectLock) {
table = mappedGLXProcAddress.get( key );
}
if(null != table) {
cglExtProcAddressTable = (CGLExtProcAddressTable) table;
if(DEBUG) {
System.err.println(getThreadName() + ": GLContext CGL ProcAddressTable reusing key("+key+") -> "+toHexString(table.hashCode()));
}
} else {
cglExtProcAddressTable = new CGLExtProcAddressTable(new GLProcAddressResolver());
resetProcAddressTable(getCGLExtProcAddressTable());
synchronized(mappedContextTypeObjectLock) {
mappedGLXProcAddress.put(key, getCGLExtProcAddressTable());
if(DEBUG) {
System.err.println(getThreadName() + ": GLContext CGL ProcAddressTable mapping key("+key+") -> "+toHexString(getCGLExtProcAddressTable().hashCode()));
}
}
}
}
@Override
protected final StringBuilder getPlatformExtensionsStringImpl() {
return new StringBuilder();
}
@Override
public boolean isExtensionAvailable(String glExtensionName) {
if (glExtensionName.equals(GLExtensions.ARB_pbuffer) ||
glExtensionName.equals(GLExtensions.ARB_pixel_format)) {
return true;
}
return super.isExtensionAvailable(glExtensionName);
}
@Override
public int getOffscreenContextPixelDataType() {
throw new GLException("Should not call this");
}
public int getOffscreenContextReadBuffer() {
throw new GLException("Should not call this");
}
@Override
public boolean offscreenImageNeedsVerticalFlip() {
throw new GLException("Should not call this");
}
@Override
public void bindPbufferToTexture() {
throw new GLException("Should not call this");
}
@Override
public void releasePbufferFromTexture() {
throw new GLException("Should not call this");
}
// Support for "mode switching" as described in MacOSXCGLDrawable
public void setOpenGLMode(GLBackendType mode) {
if (mode == openGLMode) {
return;
}
if (haveSetOpenGLMode) {
throw new GLException("Can't switch between using NSOpenGLPixelBuffer and CGLPBufferObj more than once");
}
destroyImpl();
((MacOSXCGLDrawable)drawable).setOpenGLMode(mode);
if (DEBUG) {
System.err.println("MacOSXCGLContext: Switching context mode " + openGLMode + " -> " + mode);
}
initOpenGLImpl(mode);
openGLMode = mode;
haveSetOpenGLMode = true;
}
public final GLBackendType getOpenGLMode() { return openGLMode; }
protected void initOpenGLImpl(GLBackendType backend) {
switch (backend) {
case NSOPENGL:
impl = new NSOpenGLImpl();
break;
case CGL:
impl = new CGLImpl();
break;
default:
throw new InternalError("Illegal implementation mode " + backend);
}
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append(getClass().getSimpleName());
sb.append(" [");
super.append(sb);
sb.append(", mode ");
sb.append(openGLMode);
sb.append("] ");
return sb.toString();
}
// NSOpenGLContext-based implementation
class NSOpenGLImpl implements GLBackendImpl {
long nsOpenGLLayer = 0;
long nsOpenGLLayerPFmt = 0;
float screenVSyncTimeout; // microSec
int vsyncTimeout; // microSec - for nsOpenGLLayer mode
@Override
public boolean isNSContext() { return true; }
@Override
public long create(long share, int ctp, int major, int minor) {
long ctx = 0;
final long nsViewHandle;
if(drawable instanceof MacOSXCGLDrawable) {
// we allow null here! (special pbuffer case)
nsViewHandle = ((MacOSXCGLDrawable)MacOSXCGLContext.this.drawable).getNSViewHandle();
} else {
// we only allow a valid NSView here
final long aHandle = drawable.getHandle();
if( OSXUtil.isNSView(aHandle) ) {
nsViewHandle = aHandle;
} else {
throw new RuntimeException("Anonymous drawable instance's handle not of type NSView: "+drawable.getClass().getName()+", "+drawable);
}
}
final NativeSurface surface = drawable.getNativeSurface();
final MacOSXCGLGraphicsConfiguration config = (MacOSXCGLGraphicsConfiguration) surface.getGraphicsConfiguration();
final OffscreenLayerSurface backingLayerHost = NativeWindowFactory.getOffscreenLayerSurface(surface, true);
boolean allowIncompleteView = null != backingLayerHost;
if( !allowIncompleteView && surface instanceof ProxySurface ) {
allowIncompleteView = 0 != ( ProxySurface.INVISIBLE_WINDOW & ((ProxySurface)surface).getImplBitfield() ) ;
}
final GLCapabilitiesImmutable chosenCaps = (GLCapabilitiesImmutable) config.getChosenCapabilities();
long pixelFormat = MacOSXCGLGraphicsConfiguration.GLCapabilities2NSPixelFormat(chosenCaps, ctp, major, minor);
if (pixelFormat == 0) {
if(DEBUG) {
System.err.println("Unable to allocate pixel format with requested GLCapabilities: "+chosenCaps);
}
return 0;
}
config.setChosenPixelFormat(pixelFormat);
int sRefreshRate = CGL.getScreenRefreshRate(drawable.getNativeSurface().getGraphicsConfiguration().getScreen().getIndex());
screenVSyncTimeout = 1000000f / sRefreshRate;
if(DEBUG) {
System.err.println("NS create OSX>=lion "+isLionOrLater);
System.err.println("NS create allowIncompleteView: "+allowIncompleteView);
System.err.println("NS create backingLayerHost: "+backingLayerHost);
System.err.println("NS create share: "+share);
System.err.println("NS create chosenCaps: "+chosenCaps);
System.err.println("NS create pixelFormat: "+toHexString(pixelFormat));
System.err.println("NS create drawable native-handle: "+toHexString(drawable.getHandle()));
System.err.println("NS create drawable NSView-handle: "+toHexString(nsViewHandle));
System.err.println("NS create screen refresh-rate: "+sRefreshRate+" hz, "+screenVSyncTimeout+" micros");
// Thread.dumpStack();
}
try {
int[] viewNotReady = new int[1];
// Try to allocate a context with this
ctx = CGL.createContext(share,
nsViewHandle, allowIncompleteView,
pixelFormat,
chosenCaps.isBackgroundOpaque(),
viewNotReady, 0);
if (0 == ctx) {
if(DEBUG) {
System.err.println("NS create failed: viewNotReady: "+ (1 == viewNotReady[0]));
}
return 0;
}
if (!chosenCaps.isPBuffer() && !chosenCaps.isBackgroundOpaque()) {
// Set the context opacity
CGL.setContextOpacity(ctx, 0);
}
GLCapabilitiesImmutable fixedCaps = MacOSXCGLGraphicsConfiguration.NSPixelFormat2GLCapabilities(chosenCaps.getGLProfile(), pixelFormat);
fixedCaps = GLGraphicsConfigurationUtil.fixOpaqueGLCapabilities(fixedCaps, chosenCaps.isBackgroundOpaque());
config.setChosenCapabilities(fixedCaps);
if(DEBUG) {
System.err.println("NS create fixedCaps: "+fixedCaps);
}
if(fixedCaps.isPBuffer()) {
// Must now associate the pbuffer with our newly-created context
CGL.setContextPBuffer(ctx, drawable.getHandle());
}
//
// handled layered surface
//
if(null != backingLayerHost) {
nsOpenGLLayerPFmt = pixelFormat;
pixelFormat = 0;
final int texWidth, texHeight;
if(drawable instanceof MacOSXPbufferCGLDrawable) {
final MacOSXPbufferCGLDrawable osxPDrawable = (MacOSXPbufferCGLDrawable)drawable;
texWidth = osxPDrawable.getTextureWidth();
texHeight = osxPDrawable.getTextureHeight();
} else {
texWidth = drawable.getWidth();
texHeight = drawable.getHeight();
}
if(0>=texWidth || 0>=texHeight || !drawable.isRealized()) {
throw new GLException("Drawable not realized yet or invalid texture size, texSize "+texWidth+"x"+texHeight+", "+drawable);
}
nsOpenGLLayer = CGL.createNSOpenGLLayer(ctx, nsOpenGLLayerPFmt, drawable.getHandle(), fixedCaps.isBackgroundOpaque(), texWidth, texHeight);
if (DEBUG) {
System.err.println("NS create nsOpenGLLayer "+toHexString(nsOpenGLLayer)+", texSize "+texWidth+"x"+texHeight+", "+drawable);
}
backingLayerHost.attachSurfaceLayer(nsOpenGLLayer);
setSwapInterval(1); // enabled per default in layered surface
}
} finally {
if(0!=pixelFormat) {
CGL.deletePixelFormat(pixelFormat);
}
}
return ctx;
}
@Override
public boolean destroy(long ctx) {
if(0 != nsOpenGLLayer) {
final NativeSurface surface = drawable.getNativeSurface();
if (DEBUG) {
System.err.println("NS destroy nsOpenGLLayer "+toHexString(nsOpenGLLayer));
}
final OffscreenLayerSurface ols = NativeWindowFactory.getOffscreenLayerSurface(surface, true);
if(null != ols && ols.isSurfaceLayerAttached()) {
// still having a valid OLS attached to surface (parent OLS could have been removed)
ols.detachSurfaceLayer();
}
CGL.releaseNSOpenGLLayer(nsOpenGLLayer);
CGL.deletePixelFormat(nsOpenGLLayerPFmt);
nsOpenGLLayerPFmt = 0;
nsOpenGLLayer = 0;
}
return CGL.deleteContext(ctx, true);
}
@Override
public boolean copyImpl(long src, int mask) {
CGL.copyContext(contextHandle, src, mask);
return true;
}
@Override
public boolean makeCurrent(long ctx) {
final long cglCtx = CGL.getCGLContext(ctx);
if(0 == cglCtx) {
throw new InternalError("Null CGLContext for: "+this);
}
int err = CGL.CGLLockContext(cglCtx);
if(CGL.kCGLNoError == err) {
return CGL.makeCurrentContext(ctx);
} else if(DEBUG) {
System.err.println("NSGL: Could not lock context: err 0x"+Integer.toHexString(err)+": "+this);
}
return false;
}
@Override
public boolean release(long ctx) {
try {
gl.glFlush(); // w/o glFlush()/glFinish() OSX < 10.7 (NVidia driver) may freeze
} catch (GLException gle) {
if(DEBUG) {
System.err.println("MacOSXCGLContext.NSOpenGLImpl.release: INFO: glFlush() catched exception:");
gle.printStackTrace();
}
}
final boolean res = CGL.clearCurrentContext(ctx);
final long cglCtx = CGL.getCGLContext(ctx);
if(0 == cglCtx) {
throw new InternalError("Null CGLContext for: "+this);
}
final int err = CGL.CGLUnlockContext(cglCtx);
if(DEBUG && CGL.kCGLNoError != err) {
System.err.println("CGL: Could not unlock context: err 0x"+Integer.toHexString(err)+": "+this);
}
return res && CGL.kCGLNoError == err;
}
@Override
public boolean setSwapInterval(int interval) {
if(0 != nsOpenGLLayer) {
CGL.setNSOpenGLLayerSwapInterval(nsOpenGLLayer, interval);
vsyncTimeout = interval * (int)screenVSyncTimeout;
if(DEBUG) { System.err.println("NS setSwapInterval: "+vsyncTimeout+" micros"); }
}
CGL.setSwapInterval(contextHandle, interval);
return true;
}
@Override
public boolean swapBuffers() {
if( 0 != nsOpenGLLayer ) {
// If v-sync is disabled, frames will be drawn as quickly as possible
// w/o delay but in sync w/ CALayer. Otherwise wait until next swap interval (v-sync).
CGL.waitUntilNSOpenGLLayerIsReady(nsOpenGLLayer, vsyncTimeout);
}
if(CGL.flushBuffer(contextHandle)) {
if(0 != nsOpenGLLayer) {
// trigger CALayer to update
CGL.setNSOpenGLLayerNeedsDisplay(nsOpenGLLayer);
}
return true;
}
return false;
}
}
class CGLImpl implements GLBackendImpl {
@Override
public boolean isNSContext() { return false; }
@Override
public long create(long share, int ctp, int major, int minor) {
long ctx = 0;
MacOSXCGLGraphicsConfiguration config = (MacOSXCGLGraphicsConfiguration) drawable.getNativeSurface().getGraphicsConfiguration();
GLCapabilitiesImmutable chosenCaps = (GLCapabilitiesImmutable)config.getChosenCapabilities();
long pixelFormat = MacOSXCGLGraphicsConfiguration.GLCapabilities2CGLPixelFormat(chosenCaps, ctp, major, minor);
if (pixelFormat == 0) {
throw new GLException("Unable to allocate pixel format with requested GLCapabilities");
}
config.setChosenPixelFormat(pixelFormat);
try {
// Create new context
PointerBuffer ctxPB = PointerBuffer.allocateDirect(1);
if (DEBUG) {
System.err.println("Share context for CGL-based pbuffer context is " + toHexString(share));
}
int res = CGL.CGLCreateContext(pixelFormat, share, ctxPB);
if (res != CGL.kCGLNoError) {
throw new GLException("Error code " + res + " while creating context");
}
if(chosenCaps.isPBuffer()) {
// Attach newly-created context to the pbuffer
res = CGL.CGLSetPBuffer(ctxPB.get(0), drawable.getHandle(), 0, 0, 0);
if (res != CGL.kCGLNoError) {
throw new GLException("Error code " + res + " while attaching context to pbuffer");
}
}
ctx = ctxPB.get(0);
if(0!=ctx) {
if(DEBUG) {
GLCapabilitiesImmutable caps0 = MacOSXCGLGraphicsConfiguration.CGLPixelFormat2GLCapabilities(pixelFormat);
System.err.println("NS created: "+caps0);
}
}
} finally {
CGL.CGLDestroyPixelFormat(pixelFormat);
}
return ctx;
}
@Override
public boolean destroy(long ctx) {
return CGL.CGLDestroyContext(ctx) == CGL.kCGLNoError;
}
@Override
public boolean copyImpl(long src, int mask) {
CGL.CGLCopyContext(src, contextHandle, mask);
return true;
}
@Override
public boolean makeCurrent(long ctx) {
int err = CGL.CGLLockContext(ctx);
if(CGL.kCGLNoError == err) {
err = CGL.CGLSetCurrentContext(ctx);
if(CGL.kCGLNoError == err) {
return true;
} else if(DEBUG) {
System.err.println("CGL: Could not make context current: err 0x"+Integer.toHexString(err)+": "+this);
}
} else if(DEBUG) {
System.err.println("CGL: Could not lock context: err 0x"+Integer.toHexString(err)+": "+this);
}
return false;
}
@Override
public boolean release(long ctx) {
try {
gl.glFlush(); // w/o glFlush()/glFinish() OSX < 10.7 (NVidia driver) may freeze
} catch (GLException gle) {
if(DEBUG) {
System.err.println("MacOSXCGLContext.CGLImpl.release: INFO: glFlush() catched exception:");
gle.printStackTrace();
}
}
int err = CGL.CGLSetCurrentContext(0);
if(DEBUG && CGL.kCGLNoError != err) {
System.err.println("CGL: Could not release current context: err 0x"+Integer.toHexString(err)+": "+this);
}
int err2 = CGL.CGLUnlockContext(ctx);
if(DEBUG && CGL.kCGLNoError != err2) {
System.err.println("CGL: Could not unlock context: err 0x"+Integer.toHexString(err2)+": "+this);
}
return CGL.kCGLNoError == err && CGL.kCGLNoError == err2;
}
@Override
public boolean setSwapInterval(int interval) {
int[] lval = new int[] { interval } ;
CGL.CGLSetParameter(contextHandle, CGL.kCGLCPSwapInterval, lval, 0);
return true;
}
@Override
public boolean swapBuffers() {
return CGL.kCGLNoError == CGL.CGLFlushDrawable(contextHandle);
}
}
}