/* * 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.x11.glx; import java.nio.ByteBuffer; import java.nio.IntBuffer; import java.util.HashMap; import java.util.Map; import javax.media.nativewindow.AbstractGraphicsConfiguration; import javax.media.nativewindow.AbstractGraphicsDevice; import javax.media.nativewindow.NativeSurface; import javax.media.opengl.GLCapabilitiesImmutable; import javax.media.opengl.GLContext; import javax.media.opengl.GLException; import javax.media.opengl.GLProfile; import jogamp.nativewindow.x11.X11Lib; import jogamp.nativewindow.x11.X11Util; import jogamp.opengl.GLContextImpl; import jogamp.opengl.GLDrawableImpl; import jogamp.opengl.GLXExtensions; import com.jogamp.common.nio.Buffers; import com.jogamp.common.util.VersionNumber; import com.jogamp.gluegen.runtime.ProcAddressTable; import com.jogamp.gluegen.runtime.opengl.GLProcAddressResolver; import com.jogamp.nativewindow.x11.X11GraphicsDevice; import com.jogamp.opengl.GLExtensions; public class X11GLXContext extends GLContextImpl { private static final Map functionNameMap; private static final Map extensionNameMap; private GLXExt _glXExt; // Table that holds the addresses of the native C-language entry points for // GLX extension functions. private GLXExtProcAddressTable glXExtProcAddressTable; /** 1 MESA, 2 SGI, 0 undefined, -1 none */ private int hasSwapInterval = 0; private int hasSwapGroupNV = 0; // This indicates whether the context we have created is indirect // and therefore requires the toolkit to be locked around all GL // calls rather than just all GLX calls protected boolean isDirect; protected volatile VersionNumber glXServerVersion; protected volatile boolean isGLXVersionGreaterEqualOneThree; static { functionNameMap = new HashMap(); functionNameMap.put("glAllocateMemoryNV", "glXAllocateMemoryNV"); functionNameMap.put("glFreeMemoryNV", "glXFreeMemoryNV"); extensionNameMap = new HashMap(); extensionNameMap.put(GLExtensions.ARB_pbuffer, X11GLXDrawableFactory.GLX_SGIX_pbuffer); extensionNameMap.put(GLExtensions.ARB_pixel_format, X11GLXDrawableFactory.GLX_SGIX_pbuffer); // good enough } X11GLXContext(final GLDrawableImpl drawable, final GLContext shareWith) { super(drawable, shareWith); } @Override protected void resetStates(final boolean isInit) { // no inner state _glXExt=null; glXExtProcAddressTable = null; hasSwapInterval = 0; hasSwapGroupNV = 0; isDirect = false; glXServerVersion = null; isGLXVersionGreaterEqualOneThree = false; super.resetStates(isInit); } @Override public final ProcAddressTable getPlatformExtProcAddressTable() { return getGLXExtProcAddressTable(); } public final GLXExtProcAddressTable getGLXExtProcAddressTable() { return glXExtProcAddressTable; } @Override public Object getPlatformGLExtensions() { return getGLXExt(); } public GLXExt getGLXExt() { if (_glXExt == null) { _glXExt = new GLXExtImpl(this); } return _glXExt; } @Override protected Map getFunctionNameMap() { return functionNameMap; } @Override protected Map getExtensionNameMap() { return extensionNameMap; } protected final boolean isGLXVersionGreaterEqualOneThree() { // fast-path: use cached boolean if(null != glXServerVersion) { return isGLXVersionGreaterEqualOneThree; } glXServerVersion = ((X11GLXDrawableFactory)drawable.getFactoryImpl()).getGLXVersionNumber(drawable.getNativeSurface().getGraphicsConfiguration().getScreen().getDevice()); isGLXVersionGreaterEqualOneThree = null != glXServerVersion ? glXServerVersion.compareTo(X11GLXDrawableFactory.versionOneThree) >= 0 : false; return isGLXVersionGreaterEqualOneThree; } protected final void forceGLXVersionOneOne() { glXServerVersion = X11GLXDrawableFactory.versionOneOne; isGLXVersionGreaterEqualOneThree = false; if(DEBUG) { System.err.println("X11GLXContext.forceGLXVersionNumber: "+glXServerVersion); } } @Override public final boolean isGLReadDrawableAvailable() { return isGLXVersionGreaterEqualOneThree(); } private final boolean glXMakeContextCurrent(final long dpy, final long writeDrawable, final long readDrawable, final long ctx) { boolean res = false; try { if ( isGLXVersionGreaterEqualOneThree() ) { // System.err.println(getThreadName() +": X11GLXContext.makeCurrent: obj " + toHexString(hashCode()) + " / ctx "+toHexString(contextHandle)+": ctx "+toHexString(ctx)+", [write "+toHexString(writeDrawable)+", read "+toHexString(readDrawable)+"] - switch"); res = GLX.glXMakeContextCurrent(dpy, writeDrawable, readDrawable, ctx); } else if ( writeDrawable == readDrawable ) { // System.err.println(getThreadName() +": X11GLXContext.makeCurrent: obj " + toHexString(hashCode()) + " / ctx "+toHexString(contextHandle)+": ctx "+toHexString(ctx)+", [write "+toHexString(writeDrawable)+"] - switch"); res = GLX.glXMakeCurrent(dpy, writeDrawable, ctx); } else { // should not happen due to 'isGLReadDrawableAvailable()' query in GLContextImpl throw new InternalError("Given readDrawable but no driver support"); } } catch (final RuntimeException re) { if( DEBUG_TRACE_SWITCH ) { System.err.println(getThreadName()+": Warning: X11GLXContext.glXMakeContextCurrent failed: "+re+", with "+ "dpy "+toHexString(dpy)+ ", write "+toHexString(writeDrawable)+ ", read "+toHexString(readDrawable)+ ", ctx "+toHexString(ctx)); re.printStackTrace(); } } return res; } @Override protected void destroyContextARBImpl(final long ctx) { final long display = drawable.getNativeSurface().getDisplayHandle(); glXMakeContextCurrent(display, 0, 0, 0); GLX.glXDestroyContext(display, ctx); } private static final int ctx_arb_attribs_idx_major = 0; private static final int ctx_arb_attribs_idx_minor = 2; private static final int ctx_arb_attribs_idx_flags = 6; private static final int ctx_arb_attribs_idx_profile = 8; private static final int ctx_arb_attribs_rom[] = { /* 0 */ GLX.GLX_CONTEXT_MAJOR_VERSION_ARB, 0, /* 2 */ GLX.GLX_CONTEXT_MINOR_VERSION_ARB, 0, /* 4 */ GLX.GLX_RENDER_TYPE, GLX.GLX_RGBA_TYPE, // default /* 6 */ GLX.GLX_CONTEXT_FLAGS_ARB, 0, /* 8 */ 0, 0, /* 10 */ 0 }; @Override protected long createContextARBImpl(final long share, final boolean direct, final int ctp, final int major, final int minor) { updateGLXProcAddressTable(); final GLXExt _glXExt = getGLXExt(); if(DEBUG) { System.err.println(getThreadName()+": X11GLXContext.createContextARBImpl: "+getGLVersion(major, minor, ctp, "@creation") + ", handle "+toHexString(drawable.getHandle()) + ", share "+toHexString(share)+", direct "+direct+ ", glXCreateContextAttribsARB: "+toHexString(glXExtProcAddressTable._addressof_glXCreateContextAttribsARB)); } final boolean ctBwdCompat = 0 != ( CTX_PROFILE_COMPAT & ctp ) ; final boolean ctFwdCompat = 0 != ( CTX_OPTION_FORWARD & ctp ) ; final boolean ctDebug = 0 != ( CTX_OPTION_DEBUG & ctp ) ; long ctx=0; final IntBuffer attribs = Buffers.newDirectIntBuffer(ctx_arb_attribs_rom); attribs.put(ctx_arb_attribs_idx_major + 1, major); attribs.put(ctx_arb_attribs_idx_minor + 1, minor); if ( major > 3 || major == 3 && minor >= 2 ) { attribs.put(ctx_arb_attribs_idx_profile + 0, GLX.GLX_CONTEXT_PROFILE_MASK_ARB); if( ctBwdCompat ) { attribs.put(ctx_arb_attribs_idx_profile + 1, GLX.GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB); } else { attribs.put(ctx_arb_attribs_idx_profile + 1, GLX.GLX_CONTEXT_CORE_PROFILE_BIT_ARB); } } if ( major >= 3 ) { int flags = attribs.get(ctx_arb_attribs_idx_flags + 1); if( !ctBwdCompat && ctFwdCompat ) { flags |= GLX.GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB; } if( ctDebug ) { flags |= GLX.GLX_CONTEXT_DEBUG_BIT_ARB; } attribs.put(ctx_arb_attribs_idx_flags + 1, flags); } final X11GLXGraphicsConfiguration config = (X11GLXGraphicsConfiguration)drawable.getNativeSurface().getGraphicsConfiguration(); final AbstractGraphicsDevice device = config.getScreen().getDevice(); final long display = device.getHandle(); try { // critical path, a remote display might not support this command, // hence we need to catch the X11 Error within this block. X11Util.setX11ErrorHandler(true, DEBUG ? false : true); // make sure X11 error handler is set X11Lib.XSync(display, false); ctx = _glXExt.glXCreateContextAttribsARB(display, config.getFBConfig(), share, direct, attribs); } catch (final RuntimeException re) { if(DEBUG) { final Throwable t = new Throwable(getThreadName()+": Info: X11GLXContext.createContextARBImpl glXCreateContextAttribsARB failed with "+getGLVersion(major, minor, ctp, "@creation"), re); t.printStackTrace(); } } if(0!=ctx) { if (!glXMakeContextCurrent(display, drawable.getHandle(), drawableRead.getHandle(), ctx)) { if(DEBUG) { System.err.println(getThreadName()+": X11GLXContext.createContextARBImpl couldn't make current "+getGLVersion(major, minor, ctp, "@creation")); } // release & destroy glXMakeContextCurrent(display, 0, 0, 0); GLX.glXDestroyContext(display, ctx); ctx = 0; } else if (DEBUG) { System.err.println(getThreadName() + ": createContextARBImpl: OK "+getGLVersion(major, minor, ctp, "@creation")+", share "+share+", direct "+direct); } } else if (DEBUG) { System.err.println(getThreadName() + ": createContextARBImpl: NO "+getGLVersion(major, minor, ctp, "@creation")); } return ctx; } @Override protected boolean createImpl(final long shareWithHandle) { boolean direct = true; // try direct always isDirect = false; // fall back final X11GLXDrawableFactory factory = (X11GLXDrawableFactory)drawable.getFactoryImpl(); final X11GLXGraphicsConfiguration config = (X11GLXGraphicsConfiguration)drawable.getNativeSurface().getGraphicsConfiguration(); final AbstractGraphicsDevice device = config.getScreen().getDevice(); final X11GLXContext sharedContext = (X11GLXContext) factory.getOrCreateSharedContext(device); final long display = device.getHandle(); if ( 0 != shareWithHandle ) { direct = GLX.glXIsDirect(display, shareWithHandle); } final GLCapabilitiesImmutable glCaps = (GLCapabilitiesImmutable) config.getChosenCapabilities(); final GLProfile glp = glCaps.getGLProfile(); if( !config.hasFBConfig() ) { // not able to use FBConfig -> GLX 1.1 forceGLXVersionOneOne(); if(glp.isGL3()) { throw new GLException(getThreadName()+": Unable to create OpenGL >= 3.1 context"); } contextHandle = GLX.glXCreateContext(display, config.getXVisualInfo(), shareWithHandle, direct); if ( 0 == contextHandle ) { throw new GLException(getThreadName()+": Unable to create context(0)"); } if ( !glXMakeContextCurrent(display, drawable.getHandle(), drawableRead.getHandle(), contextHandle) ) { throw new GLException(getThreadName()+": Error making temp context(0) current: display "+toHexString(display)+", context "+toHexString(contextHandle)+", drawable "+drawable); } if( !setGLFunctionAvailability(true, 0, 0, CTX_PROFILE_COMPAT, false /* strictMatch */, null == sharedContext /* withinGLVersionsMapping */) ) { // use GL_VERSION throw new InternalError("setGLFunctionAvailability !strictMatch failed"); } isDirect = GLX.glXIsDirect(display, contextHandle); if (DEBUG) { System.err.println(getThreadName() + ": createContextImpl: OK (old-1) share "+toHexString(shareWithHandle)+", direct "+isDirect+"/"+direct); } return true; } boolean createContextARBTried = false; // utilize the shared context's GLXExt in case it was using the ARB method and it already exists if( null != sharedContext && sharedContext.isCreatedWithARBMethod() ) { contextHandle = createContextARB(shareWithHandle, direct); createContextARBTried = true; if ( DEBUG && 0 != contextHandle ) { System.err.println(getThreadName() + ": createContextImpl: OK (ARB, using sharedContext) share "+toHexString(shareWithHandle)); } } final long temp_ctx; if( 0 == contextHandle ) { // To use GLX_ARB_create_context, we have to make a temp context current, // so we are able to use GetProcAddress temp_ctx = GLX.glXCreateNewContext(display, config.getFBConfig(), GLX.GLX_RGBA_TYPE, shareWithHandle, direct); if ( 0 == temp_ctx ) { throw new GLException(getThreadName()+": Unable to create temp OpenGL context(1)"); } if ( !glXMakeContextCurrent(display, drawable.getHandle(), drawableRead.getHandle(), temp_ctx) ) { throw new GLException(getThreadName()+": Error making temp context(1) current: display "+toHexString(display)+", context "+toHexString(temp_ctx)+", drawable "+drawable); } setGLFunctionAvailability(true, 0, 0, CTX_PROFILE_COMPAT, false /* strictMatch */, null == sharedContext /* withinGLVersionsMapping */); // use GL_VERSION glXMakeContextCurrent(display, 0, 0, 0); // release temp context if( !createContextARBTried ) { // is*Available calls are valid since setGLFunctionAvailability(..) was called final boolean isProcCreateContextAttribsARBAvailable = isFunctionAvailable("glXCreateContextAttribsARB"); final boolean isExtARBCreateContextAvailable = isExtensionAvailable("GLX_ARB_create_context"); if ( isProcCreateContextAttribsARBAvailable && isExtARBCreateContextAvailable ) { // initial ARB context creation contextHandle = createContextARB(shareWithHandle, direct); createContextARBTried=true; if (DEBUG) { if( 0 != contextHandle ) { System.err.println(getThreadName() + ": createContextImpl: OK (ARB, initial) share "+toHexString(shareWithHandle)); } else { System.err.println(getThreadName() + ": createContextImpl: NOT OK (ARB, initial) - creation failed - share "+toHexString(shareWithHandle)); } } } else if (DEBUG) { System.err.println(getThreadName() + ": createContextImpl: NOT OK (ARB, initial) - extension not available - share "+toHexString(shareWithHandle)+ ", isProcCreateContextAttribsARBAvailable "+isProcCreateContextAttribsARBAvailable+", isExtGLXARBCreateContextAvailable "+isExtARBCreateContextAvailable); } } } else { temp_ctx = 0; } if( 0 != contextHandle ) { if( 0 != temp_ctx ) { glXMakeContextCurrent(display, 0, 0, 0); GLX.glXDestroyContext(display, temp_ctx); if ( !glXMakeContextCurrent(display, drawable.getHandle(), drawableRead.getHandle(), contextHandle) ) { throw new GLException(getThreadName()+": Cannot make previous verified context current"); } } } else { if( glp.isGL3() ) { glXMakeContextCurrent(display, 0, 0, 0); GLX.glXDestroyContext(display, temp_ctx); throw new GLException(getThreadName()+": X11GLXContext.createContextImpl ctx !ARB, profile > GL2 requested (OpenGL >= 3.0.1). Requested: "+glp+", current: "+getGLVersion()); } if(DEBUG) { System.err.println(getThreadName()+": X11GLXContext.createContextImpl failed, fall back to !ARB context "+getGLVersion()); } // continue with temp context for GL <= 3.0 contextHandle = temp_ctx; if ( !glXMakeContextCurrent(display, drawable.getHandle(), drawableRead.getHandle(), contextHandle) ) { glXMakeContextCurrent(display, 0, 0, 0); GLX.glXDestroyContext(display, temp_ctx); throw new GLException(getThreadName()+": Error making context(1) current: display "+toHexString(display)+", context "+toHexString(contextHandle)+", drawable "+drawable); } if (DEBUG) { System.err.println(getThreadName() + ": createContextImpl: OK (old-2) share "+toHexString(shareWithHandle)); } } isDirect = GLX.glXIsDirect(display, contextHandle); if (DEBUG) { System.err.println(getThreadName() + ": createContextImpl: OK direct "+isDirect+"/"+direct); } return true; } @Override protected void makeCurrentImpl() throws GLException { final long dpy = drawable.getNativeSurface().getDisplayHandle(); if (GLX.glXGetCurrentContext() != contextHandle) { if (!glXMakeContextCurrent(dpy, drawable.getHandle(), drawableRead.getHandle(), contextHandle)) { throw new GLException("Error making context " + toHexString(contextHandle) + " current on Thread " + getThreadName() + " with display " + toHexString(dpy) + ", drawableWrite " + toHexString(drawable.getHandle()) + ", drawableRead "+ toHexString(drawableRead.getHandle()) + " - " + this); } } } @Override protected void releaseImpl() throws GLException { final long display = drawable.getNativeSurface().getDisplayHandle(); if (!glXMakeContextCurrent(display, 0, 0, 0)) { throw new GLException(getThreadName()+": Error freeing OpenGL context"); } } @Override protected void destroyImpl() throws GLException { destroyContextARBImpl(contextHandle); } @Override protected void copyImpl(final GLContext source, final int mask) throws GLException { final long dst = getHandle(); final long src = source.getHandle(); final long display = drawable.getNativeSurface().getDisplayHandle(); if (0 == display) { throw new GLException(getThreadName()+": Connection to X display not yet set up"); } GLX.glXCopyContext(display, src, dst, mask); // Should check for X errors and raise GLException } @Override protected final void updateGLXProcAddressTable() { final AbstractGraphicsConfiguration aconfig = drawable.getNativeSurface().getGraphicsConfiguration(); final AbstractGraphicsDevice adevice = aconfig.getScreen().getDevice(); final String key = "GLX-"+adevice.getUniqueID(); if (DEBUG) { System.err.println(getThreadName() + ": Initializing GLX extension address table: "+key); } ProcAddressTable table = null; synchronized(mappedContextTypeObjectLock) { table = mappedGLXProcAddress.get( key ); } if(null != table) { glXExtProcAddressTable = (GLXExtProcAddressTable) table; if(DEBUG) { System.err.println(getThreadName() + ": GLContext GLX ProcAddressTable reusing key("+key+") -> "+toHexString(table.hashCode())); } } else { glXExtProcAddressTable = new GLXExtProcAddressTable(new GLProcAddressResolver()); resetProcAddressTable(getGLXExtProcAddressTable()); synchronized(mappedContextTypeObjectLock) { mappedGLXProcAddress.put(key, getGLXExtProcAddressTable()); if(DEBUG) { System.err.println(getThreadName() + ": GLContext GLX ProcAddressTable mapping key("+key+") -> "+toHexString(getGLXExtProcAddressTable().hashCode())); } } } } @Override protected final StringBuilder getPlatformExtensionsStringImpl() { final NativeSurface ns = drawable.getNativeSurface(); final X11GraphicsDevice x11Device = (X11GraphicsDevice) ns.getGraphicsConfiguration().getScreen().getDevice(); final StringBuilder sb = new StringBuilder(); x11Device.lock(); try{ if (DEBUG) { System.err.println("GLX Version client version "+ GLXUtil.getClientVersionNumber()+ ", server: "+ GLXUtil.getGLXServerVersionNumber(x11Device)); } if(((X11GLXDrawableFactory)drawable.getFactoryImpl()).isGLXVersionGreaterEqualOneOne(x11Device)) { { final String ret = GLX.glXGetClientString(x11Device.getHandle(), GLX.GLX_EXTENSIONS); if (DEBUG) { System.err.println("GLX extensions (glXGetClientString): " + ret); } sb.append(ret).append(" "); } { final String ret = GLX.glXQueryExtensionsString(x11Device.getHandle(), ns.getScreenIndex()); if (DEBUG) { System.err.println("GLX extensions (glXQueryExtensionsString): " + ret); } sb.append(ret).append(" "); } { final String ret = GLX.glXQueryServerString(x11Device.getHandle(), ns.getScreenIndex(), GLX.GLX_EXTENSIONS); if (DEBUG) { System.err.println("GLX extensions (glXQueryServerString): " + ret); } sb.append(ret).append(" "); } } } finally { x11Device.unlock(); } return sb; } @Override protected boolean setSwapIntervalImpl(final int interval) { if( !drawable.getChosenGLCapabilities().isOnscreen() ) { return false; } final GLXExt glXExt = getGLXExt(); if(0==hasSwapInterval) { try { /** Same impl. .. if( glXExt.isExtensionAvailable(GLXExtensions.GLX_MESA_swap_control) ) { if(DEBUG) { System.err.println("X11GLXContext.setSwapInterval using: "+GLXExtensions.GLX_MESA_swap_control); } hasSwapInterval = 1; } else */ if ( glXExt.isExtensionAvailable(GLXExtensions.GLX_SGI_swap_control) ) { if(DEBUG) { System.err.println("X11GLXContext.setSwapInterval using: "+GLXExtensions.GLX_SGI_swap_control); } hasSwapInterval = 2; } else { hasSwapInterval = -1; } } catch (final Throwable t) { hasSwapInterval=-1; } } /* try { switch( hasSwapInterval ) { case 1: return 0 == glXExt.glXSwapIntervalMESA(interval); case 2: return 0 == glXExt.glXSwapIntervalSGI(interval); } } catch (Throwable t) { hasSwapInterval = -1; } */ if (2 == hasSwapInterval) { try { return 0 == glXExt.glXSwapIntervalSGI(interval); } catch (final Throwable t) { hasSwapInterval=-1; } } return false; } private final int initSwapGroupImpl(final GLXExt glXExt) { if(0==hasSwapGroupNV) { try { hasSwapGroupNV = glXExt.isExtensionAvailable(GLXExtensions.GLX_NV_swap_group)?1:-1; } catch (final Throwable t) { hasSwapGroupNV=1; } if(DEBUG) { System.err.println("initSwapGroupImpl: "+GLXExtensions.GLX_NV_swap_group+": "+hasSwapGroupNV); } } return hasSwapGroupNV; } @Override protected final boolean queryMaxSwapGroupsImpl(final int[] maxGroups, final int maxGroups_offset, final int[] maxBarriers, final int maxBarriers_offset) { boolean res = false; final GLXExt glXExt = getGLXExt(); if (initSwapGroupImpl(glXExt)>0) { final NativeSurface ns = drawable.getNativeSurface(); try { final IntBuffer maxGroupsNIO = Buffers.newDirectIntBuffer(maxGroups.length - maxGroups_offset); final IntBuffer maxBarriersNIO = Buffers.newDirectIntBuffer(maxBarriers.length - maxBarriers_offset); if( glXExt.glXQueryMaxSwapGroupsNV(ns.getDisplayHandle(), ns.getScreenIndex(), maxGroupsNIO, maxBarriersNIO) ) { maxGroupsNIO.get(maxGroups, maxGroups_offset, maxGroupsNIO.remaining()); maxBarriersNIO.get(maxGroups, maxGroups_offset, maxBarriersNIO.remaining()); res = true; } } catch (final Throwable t) { hasSwapGroupNV=-1; } } return res; } @Override protected final boolean joinSwapGroupImpl(final int group) { boolean res = false; final GLXExt glXExt = getGLXExt(); if (initSwapGroupImpl(glXExt)>0) { try { if( glXExt.glXJoinSwapGroupNV(drawable.getNativeSurface().getDisplayHandle(), drawable.getHandle(), group) ) { currentSwapGroup = group; res = true; } } catch (final Throwable t) { hasSwapGroupNV=-1; } } return res; } @Override protected final boolean bindSwapBarrierImpl(final int group, final int barrier) { boolean res = false; final GLXExt glXExt = getGLXExt(); if (initSwapGroupImpl(glXExt)>0) { try { if( glXExt.glXBindSwapBarrierNV(drawable.getNativeSurface().getDisplayHandle(), group, barrier) ) { res = true; } } catch (final Throwable t) { hasSwapGroupNV=-1; } } return res; } @Override public final ByteBuffer glAllocateMemoryNV(final int size, final float readFrequency, final float writeFrequency, final float priority) { return getGLXExt().glXAllocateMemoryNV(size, readFrequency, writeFrequency, priority); } @Override public final void glFreeMemoryNV(final ByteBuffer pointer) { getGLXExt().glXFreeMemoryNV(pointer); } @Override public String toString() { final StringBuilder sb = new StringBuilder(); sb.append(getClass().getSimpleName()); sb.append(" ["); super.append(sb); sb.append(", direct "); sb.append(isDirect); sb.append("] "); return sb.toString(); } //---------------------------------------------------------------------- // Internals only below this point // }