/* * 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; import java.nio.ByteBuffer; import java.nio.IntBuffer; import java.util.HashMap; import java.util.Map; import com.jogamp.common.os.DynamicLookupHelper; import com.jogamp.common.util.ReflectionUtil; import com.jogamp.gluegen.runtime.FunctionAddressResolver; import com.jogamp.gluegen.runtime.ProcAddressTable; import com.jogamp.gluegen.runtime.opengl.GLExtensionNames; import com.jogamp.gluegen.runtime.opengl.GLProcAddressResolver; import javax.media.nativewindow.AbstractGraphicsConfiguration; import javax.media.nativewindow.AbstractGraphicsDevice; import javax.media.nativewindow.NativeSurface; import javax.media.opengl.GL; import javax.media.opengl.GL3; import javax.media.opengl.GLCapabilitiesImmutable; import javax.media.opengl.GLContext; import javax.media.opengl.GLDebugListener; import javax.media.opengl.GLDebugMessage; import javax.media.opengl.GLDrawable; import javax.media.opengl.GLException; import javax.media.opengl.GLPipelineFactory; import javax.media.opengl.GLProfile; public abstract class GLContextImpl extends GLContext { /** * Context full qualified name: display_type + display_connection + major + minor + ctp. * This is the key for all cached GL ProcAddressTables, etc, to support multi display/device setups. */ private String contextFQN; private int additionalCtxCreationFlags; // Cache of the functions that are available to be called at the current // moment in time protected ExtensionAvailabilityCache extensionAvailability; // Table that holds the addresses of the native C-language entry points for // OpenGL functions. private ProcAddressTable glProcAddressTable; private String glRenderer; private String glRendererLowerCase; // Tracks creation and initialization of buffer objects to avoid // repeated glGet calls upon glMapBuffer operations private GLBufferSizeTracker bufferSizeTracker; // Singleton - Set by GLContextShareSet private GLBufferStateTracker bufferStateTracker = new GLBufferStateTracker(); private GLStateTracker glStateTracker = new GLStateTracker(); private GLDebugMessageHandler glDebugHandler = null; protected GLDrawableImpl drawable; protected GLDrawableImpl drawableRead; protected GL gl; protected static final Object mappedContextTypeObjectLock; protected static final HashMap mappedExtensionAvailabilityCache; protected static final HashMap mappedGLProcAddress; protected static final HashMap mappedGLXProcAddress; static { mappedContextTypeObjectLock = new Object(); mappedExtensionAvailabilityCache = new HashMap(); mappedGLProcAddress = new HashMap(); mappedGLXProcAddress = new HashMap(); } public static void shutdownImpl() { mappedExtensionAvailabilityCache.clear(); mappedGLProcAddress.clear(); mappedGLXProcAddress.clear(); } public GLContextImpl(GLDrawableImpl drawable, GLContext shareWith) { super(); if (shareWith != null) { GLContextShareSet.registerSharing(this, shareWith); } GLContextShareSet.synchronizeBufferObjectSharing(shareWith, this); this.drawable = drawable; this.drawableRead = drawable; this.glDebugHandler = new GLDebugMessageHandler(this); } @Override protected void resetStates() { // Because we don't know how many other contexts we might be // sharing with (and it seems too complicated to implement the // GLObjectTracker's ref/unref scheme for the buffer-related // optimizations), simply clear the cache of known buffers' sizes // when we destroy contexts if (bufferSizeTracker != null) { bufferSizeTracker.clearCachedBufferSizes(); } if (bufferStateTracker != null) { bufferStateTracker.clearBufferObjectState(); } if (glStateTracker != null) { glStateTracker.clearStates(false); } extensionAvailability = null; glProcAddressTable = null; gl = null; contextFQN = null; additionalCtxCreationFlags = 0; glRenderer = ""; glRendererLowerCase = glRenderer; super.resetStates(); } public final void setGLReadDrawable(GLDrawable read) { if(null!=read && drawable!=read && !isGLReadDrawableAvailable()) { throw new GLException("GL Read Drawable not available"); } boolean lockHeld = lock.isOwner(); if(lockHeld) { release(); } drawableRead = ( null != read ) ? (GLDrawableImpl) read : drawable; if(lockHeld) { makeCurrent(); } } public final GLDrawable getGLReadDrawable() { return drawableRead; } public final GLDrawable getGLDrawable() { return drawable; } public final GLDrawableImpl getDrawableImpl() { return (GLDrawableImpl) getGLDrawable(); } public final GL getGL() { return gl; } public GL setGL(GL gl) { if(DEBUG) { String sgl1 = (null!=this.gl)?this.gl.getClass().getSimpleName()+", "+this.gl.toString():""; String sgl2 = (null!=gl)?gl.getClass().getSimpleName()+", "+gl.toString():""; Exception e = new Exception("Info: setGL (OpenGL "+getGLVersion()+"): "+Thread.currentThread().getName()+", "+sgl1+" -> "+sgl2); e.printStackTrace(); } this.gl = gl; return gl; } /** * Call this method to notify the OpenGL context * that the drawable has changed (size or position). * *

* This is currently being used and overridden by Mac OSX, * which issues the {@link jogamp.opengl.macosx.cgl.CGL#updateContext(long) NSOpenGLContext update()} call. *

* * @throws GLException */ protected void drawableUpdatedNotify() throws GLException { } volatile boolean lockFailFast = true; public boolean isSynchronized() { return !lockFailFast; // volatile: ok } public void setSynchronized(boolean isSynchronized) { lockFailFast = !isSynchronized; // volatile: ok } private final void lockConsiderFailFast() { if( lockFailFast ) { // volatile: ok try { if( !lock.tryLock(0) ) { // immediate return w/ false, if lock is already held by other thread throw new GLException("Error: Attempt to make context current on thread " + Thread.currentThread().getName() + " which is already current on thread " + lock.getOwner().getName()); } } catch (InterruptedException ie) { throw new GLException(ie); } } else { lock.lock(); } } public abstract Object getPlatformGLExtensions(); // Note: the surface is locked within [makeCurrent .. swap .. release] public void release() throws GLException { release(false); } private void release(boolean force) throws GLException { if(TRACE_SWITCH) { System.err.println(getThreadName() +": GLContext.ContextSwitch: - release() - force: "+force+", "+lock); } if ( !lock.isOwner() ) { throw new GLException("Context not current on current thread "+Thread.currentThread().getName()+": "+this); } final boolean actualRelease = force || lock.getHoldCount() == 1 ; try { if( actualRelease ) { if (contextHandle != 0) { // allow dbl-release releaseImpl(); } } } finally { // exception prone .. if( actualRelease ) { setCurrent(null); } drawable.unlockSurface(); lock.unlock(); if(TRACE_SWITCH) { System.err.println(getThreadName() +": GLContext.ContextSwitch: - "+(actualRelease?"switch":"keep ")+" - CONTEXT_RELEASE - "+lock); } } } protected abstract void releaseImpl() throws GLException; public final void destroy() { // Must hold the lock around the destroy operation to make sure we // don't destroy the context out from under another thread rendering to it lockConsiderFailFast(); // holdCount++ -> 1 or 2 try { if(lock.getHoldCount() > 2) { throw new GLException("XXX: "+lock); } if (DEBUG || TRACE_SWITCH) { System.err.println(getThreadName() + ": GLContextImpl.destroy.0: " + toHexString(contextHandle) + ", isShared "+GLContextShareSet.isShared(this)+" - "+lock); } if (contextHandle != 0) { int lockRes = drawable.lockSurface(); if (NativeSurface.LOCK_SURFACE_NOT_READY == lockRes) { // this would be odd .. throw new GLException("Surface not ready to lock: "+drawable); } // release current context if(null != glDebugHandler) { if(lock.getHoldCount() == 1) { // needs current context to disable debug handler makeCurrent(); } glDebugHandler.enable(false); } if(lock.getHoldCount() > 1) { // pending release() after makeCurrent() release(true); } try { destroyImpl(); contextHandle = 0; glDebugHandler = null; // this maybe impl. in a platform specific way to release remaining shared ctx. if(GLContextShareSet.contextDestroyed(this) && !GLContextShareSet.hasCreatedSharedLeft(this)) { GLContextShareSet.unregisterSharing(this); } } finally { drawable.unlockSurface(); } } } finally { lock.unlock(); if (TRACE_SWITCH) { System.err.println(getThreadName() + ": GLContextImpl.destroy.X: " + toHexString(contextHandle) + ", isShared "+GLContextShareSet.isShared(this)+" - "+lock); } } resetStates(); } protected abstract void destroyImpl() throws GLException; public final void copy(GLContext source, int mask) throws GLException { if (source.getHandle() == 0) { throw new GLException("Source OpenGL context has not been created"); } if (getHandle() == 0) { throw new GLException("Destination OpenGL context has not been created"); } int lockRes = drawable.lockSurface(); if (NativeSurface.LOCK_SURFACE_NOT_READY == lockRes) { // this would be odd .. throw new GLException("Surface not ready to lock"); } try { copyImpl(source, mask); } finally { drawable.unlockSurface(); } } protected abstract void copyImpl(GLContext source, int mask) throws GLException; //---------------------------------------------------------------------- // /** * {@inheritDoc} *

* MakeCurrent functionality, which also issues the creation of the actual OpenGL context. *

* The complete callgraph for general OpenGL context creation is:
*
    *
  • {@link #makeCurrent} GLContextImpl
    • *
  • {@link #makeCurrentImpl} Platform Implementation
    • *
  • {@link #create} Platform Implementation
    • *
  • If ARB_create_context is supported: *
      *
    • {@link #createContextARB} GLContextImpl
      • *
    • {@link #createContextARBImpl} Platform Implementation
      • *
    • *

* * Once at startup, ie triggered by the singleton constructor of a {@link GLDrawableFactoryImpl} specialization, * calling {@link #createContextARB} will query all available OpenGL versions:
*
    *
  • FOR ALL GL* DO: *
      *
    • {@link #createContextARBMapVersionsAvailable} *
        *
      • {@link #createContextARBVersions}
        • *
      • *
    • {@link #mapVersionAvailable}
      • *
    • *

* * @see #makeCurrentImpl * @see #create * @see #createContextARB * @see #createContextARBImpl * @see #mapVersionAvailable * @see #destroyContextARBImpl */ public int makeCurrent() throws GLException { boolean unlockContextAndDrawable = false; lockConsiderFailFast(); int res = CONTEXT_NOT_CURRENT; try { // Note: the surface is locked within [makeCurrent .. swap .. release] int lockRes = drawable.lockSurface(); if (NativeSurface.LOCK_SURFACE_NOT_READY >= lockRes) { return CONTEXT_NOT_CURRENT; } try { if (NativeSurface.LOCK_SURFACE_CHANGED == lockRes) { drawable.updateHandle(); } // One context can only be current by one thread, // and one thread can only have one context current! final GLContext current = getCurrent(); if (current != null) { if (current == this) { // Assume we don't need to make this context current again // For Mac OS X, however, we need to update the context to track resizes drawableUpdatedNotify(); if(TRACE_SWITCH) { System.err.println(getThreadName() +": GLContext.ContextSwitch: - keep - CONTEXT_CURRENT - "+lock); } return CONTEXT_CURRENT; } else { current.release(); } } if (0 == drawable.getHandle()) { throw new GLException("drawable has invalid handle: "+drawable); } res = makeCurrentWithinLock(lockRes); unlockContextAndDrawable = CONTEXT_NOT_CURRENT == res; /** * FIXME: refactor dependence on Java 2D / JOGL bridge if ((tracker != null) && (res == CONTEXT_CURRENT_NEW)) { // Increase reference count of GLObjectTracker tracker.ref(); } */ } catch (RuntimeException e) { unlockContextAndDrawable = true; throw e; } finally { if (unlockContextAndDrawable) { drawable.unlockSurface(); } } } catch (RuntimeException e) { unlockContextAndDrawable = true; throw e; } finally { if (unlockContextAndDrawable) { lock.unlock(); } } if (res == CONTEXT_NOT_CURRENT) { if(TRACE_SWITCH) { System.err.println(getThreadName() +": GLContext.ContextSwitch: - switch - CONTEXT_NOT_CURRENT - "+lock); } } else { setCurrent(this); if(res == CONTEXT_CURRENT_NEW) { // check if the drawable's and the GL's GLProfile are equal // throws an GLException if not getGLDrawable().getGLProfile().verifyEquality(gl.getGLProfile()); glDebugHandler.init( isGL2GL3() && isGLDebugEnabled() ); if(DEBUG_GL) { gl = gl.getContext().setGL( GLPipelineFactory.create("javax.media.opengl.Debug", null, gl, null) ); if(glDebugHandler.isEnabled()) { glDebugHandler.addListener(new GLDebugMessageHandler.StdErrGLDebugListener(true)); } } if(TRACE_GL) { gl = gl.getContext().setGL( GLPipelineFactory.create("javax.media.opengl.Trace", null, gl, new Object[] { System.err } ) ); } if(DEBUG || TRACE_SWITCH) { System.err.println(getThreadName() +": GLContext.ContextSwitch: - switch - CONTEXT_CURRENT_NEW - "+lock); } } else if(TRACE_SWITCH) { System.err.println(getThreadName() +": GLContext.ContextSwitch: - switch - CONTEXT_CURRENT - "+lock); } /* FIXME: refactor dependence on Java 2D / JOGL bridge // Try cleaning up any stale server-side OpenGL objects // FIXME: not sure what to do here if this throws if (deletedObjectTracker != null) { deletedObjectTracker.clean(getGL()); } */ } return res; } private final int makeCurrentWithinLock(int surfaceLockRes) throws GLException { if (!isCreated()) { if(DEBUG_GL) { // only impacts w/ createContextARB(..) additionalCtxCreationFlags |= GLContext.CTX_OPTION_DEBUG ; } final GLContextImpl shareWith = (GLContextImpl) GLContextShareSet.getShareContext(this); if (null != shareWith) { shareWith.getDrawableImpl().lockSurface(); } final boolean created; try { created = createImpl(shareWith); // may throws exception if fails! } finally { if (null != shareWith) { shareWith.getDrawableImpl().unlockSurface(); } } if (DEBUG) { if(created) { System.err.println(getThreadName() + ": Create GL context OK: " + toHexString(contextHandle) + " for " + getClass().getName()+" - "+getGLVersion()); } else { System.err.println(getThreadName() + ": Create GL context FAILED for " + getClass().getName()); } } if(!created) { return CONTEXT_NOT_CURRENT; } // finalize mapping the available GLVersions, in case it's not done yet { final AbstractGraphicsConfiguration config = drawable.getNativeSurface().getGraphicsConfiguration(); final AbstractGraphicsDevice device = config.getScreen().getDevice(); if( !GLContext.getAvailableGLVersionsSet(device) ) { final int reqMajor; final int reqProfile; if( 0 != ( ctxOptions & GLContext.CTX_PROFILE_ES) ) { // ES1 or ES2 reqMajor = ctxMajorVersion; reqProfile = GLContext.CTX_PROFILE_ES; } else { if(ctxMajorVersion<3 || ctxMajorVersion==3 && ctxMinorVersion==0) { reqMajor = 2; } else { reqMajor = ctxMajorVersion; } if( 0 != ( ctxOptions & GLContext.CTX_PROFILE_CORE) ) { reqProfile = GLContext.CTX_PROFILE_CORE; } else { reqProfile = GLContext.CTX_PROFILE_COMPAT; } } GLContext.mapAvailableGLVersion(device, reqMajor, reqProfile, ctxMajorVersion, ctxMinorVersion, ctxOptions); GLContext.setAvailableGLVersionsSet(device); if (DEBUG) { System.err.println(getThreadName() + ": createContextOLD-MapVersionsAvailable HAVE: " + device+" -> "+reqMajor+"."+reqProfile+ " -> "+getGLVersion()); } } } GLContextShareSet.contextCreated(this); return CONTEXT_CURRENT_NEW; } makeCurrentImpl(); return CONTEXT_CURRENT; } protected abstract void makeCurrentImpl() throws GLException; /** * Platform dependent entry point for context creation.
* * This method is called from {@link #makeCurrentWithinLock()} .. {@link #makeCurrent()} .
* * The implementation shall verify this context with a * MakeContextCurrent call.
* * The implementation must leave the context current.
* * @param share the shared context or null * @return the valid and current context if successful, or null * @throws GLException */ protected abstract boolean createImpl(GLContextImpl sharedWith) throws GLException ; /** * Platform dependent but harmonized implementation of the ARB_create_context * mechanism to create a context.
* * This method is called from {@link #createContextARB}, {@link #createImpl(GLContextImpl)} .. {@link #makeCurrent()} .
* * The implementation shall verify this context with a * MakeContextCurrent call.
* * The implementation must leave the context current.
* * @param share the shared context or null * @param direct flag if direct is requested * @param ctxOptionFlags ARB_create_context related, see references below * @param major major number * @param minor minor number * @return the valid and current context if successful, or null * * @see #makeCurrent * @see #CTX_PROFILE_COMPAT * @see #CTX_OPTION_FORWARD * @see #CTX_OPTION_DEBUG * @see #makeCurrentImpl * @see #create * @see #createContextARB * @see #createContextARBImpl * @see #destroyContextARBImpl */ protected abstract long createContextARBImpl(long share, boolean direct, int ctxOptionFlags, int major, int minor); /** * Destroy the context created by {@link #createContextARBImpl}. * * @see #makeCurrent * @see #makeCurrentImpl * @see #create * @see #createContextARB * @see #createContextARBImpl * @see #destroyContextARBImpl */ protected abstract void destroyContextARBImpl(long context); /** * Platform independent part of using the ARB_create_context * mechanism to create a context.
* * The implementation of {@link #create} shall use this protocol in case the platform supports ARB_create_context.
* * This method may call {@link #createContextARBImpl} and {@link #destroyContextARBImpl}.
* * This method will also query all available native OpenGL context when first called,
* usually the first call should happen with the shared GLContext of the DrawableFactory.
* * The implementation makes the context current, if successful
* * @see #makeCurrentImpl * @see #create * @see #createContextARB * @see #createContextARBImpl * @see #destroyContextARBImpl */ protected final long createContextARB(long share, boolean direct) { AbstractGraphicsConfiguration config = drawable.getNativeSurface().getGraphicsConfiguration(); AbstractGraphicsDevice device = config.getScreen().getDevice(); GLCapabilitiesImmutable glCaps = (GLCapabilitiesImmutable) config.getChosenCapabilities(); GLProfile glp = glCaps.getGLProfile(); GLProfile glpImpl = glp.getImpl(); if (DEBUG) { System.err.println(getThreadName() + ": createContextARB: mappedVersionsAvailableSet("+device.getConnection()+"): "+ GLContext.getAvailableGLVersionsSet(device)); } if ( !GLContext.getAvailableGLVersionsSet(device) ) { if(!mapGLVersions(device)) { // none of the ARB context creation calls was successful, bail out return 0; } } int reqMajor; if(glpImpl.isGL4()) { reqMajor=4; } else if (glpImpl.isGL3()) { reqMajor=3; } else /* if (glpImpl.isGL2()) */ { reqMajor=2; } boolean compat = glpImpl.isGL2(); // incl GL3bc and GL4bc int _major[] = { 0 }; int _minor[] = { 0 }; int _ctp[] = { 0 }; long _ctx = 0; if( GLContext.getAvailableGLVersion(device, reqMajor, compat?CTX_PROFILE_COMPAT:CTX_PROFILE_CORE, _major, _minor, _ctp)) { _ctp[0] |= additionalCtxCreationFlags; _ctx = createContextARBImpl(share, direct, _ctp[0], _major[0], _minor[0]); if(0!=_ctx) { setGLFunctionAvailability(true, _major[0], _minor[0], _ctp[0]); } } return _ctx; } private final boolean mapGLVersions(AbstractGraphicsDevice device) { synchronized (GLContext.deviceVersionAvailable) { boolean success = false; // Following GLProfile.GL_PROFILE_LIST_ALL order of profile detection { GL4bc, GL3bc, GL2, GL4, GL3, GL2GL3, GLES2, GL2ES2, GLES1, GL2ES1 } success |= createContextARBMapVersionsAvailable(4, true /* compat */); // GL4bc success |= createContextARBMapVersionsAvailable(3, true /* compat */); // GL3bc success |= createContextARBMapVersionsAvailable(2, true /* compat */); // GL2 success |= createContextARBMapVersionsAvailable(4, false /* core */); // GL4 success |= createContextARBMapVersionsAvailable(3, false /* core */); // GL3 if(success) { // only claim GL versions set [and hence detected] if ARB context creation was successful GLContext.setAvailableGLVersionsSet(device); } else if (DEBUG) { System.err.println(getThreadName() + ": createContextARB-MapVersions NONE for :"+device); } return success; } } private final boolean createContextARBMapVersionsAvailable(int reqMajor, boolean compat) { long _context; int reqProfile = compat ? CTX_PROFILE_COMPAT : CTX_PROFILE_CORE ; int ctp = CTX_IS_ARB_CREATED | CTX_PROFILE_CORE; // default if(compat) { ctp &= ~CTX_PROFILE_CORE ; ctp |= CTX_PROFILE_COMPAT ; } // To ensure GL profile compatibility within the JOGL application // we always try to map against the highest GL version, // so the user can always cast to the highest available one. int majorMax, minorMax; int majorMin, minorMin; int major[] = new int[1]; int minor[] = new int[1]; if( 4 == reqMajor ) { majorMax=4; minorMax=GLContext.getMaxMinor(majorMax); majorMin=4; minorMin=0; } else if( 3 == reqMajor ) { majorMax=3; minorMax=GLContext.getMaxMinor(majorMax); majorMin=3; minorMin=1; } else /* if( glp.isGL2() ) */ { // our minimum desktop OpenGL runtime requirements are 1.1, // nevertheless we restrict ARB context creation to 2.0 to spare us futile attempts majorMax=3; minorMax=0; majorMin=2; minorMin=0; } _context = createContextARBVersions(0, true, ctp, /* max */ majorMax, minorMax, /* min */ majorMin, minorMin, /* res */ major, minor); if(0==_context && !compat) { // try w/ FORWARD instead of CORE ctp &= ~CTX_PROFILE_CORE ; ctp |= CTX_OPTION_FORWARD ; _context = createContextARBVersions(0, true, ctp, /* max */ majorMax, minorMax, /* min */ majorMin, minorMin, /* res */ major, minor); if(0==_context) { // Try a compatible one .. even though not requested .. last resort ctp &= ~CTX_PROFILE_CORE ; ctp &= ~CTX_OPTION_FORWARD ; ctp |= CTX_PROFILE_COMPAT ; _context = createContextARBVersions(0, true, ctp, /* max */ majorMax, minorMax, /* min */ majorMin, minorMin, /* res */ major, minor); } } if(0!=_context) { AbstractGraphicsDevice device = drawable.getNativeSurface().getGraphicsConfiguration().getScreen().getDevice(); // ctxMajorVersion, ctxMinorVersion, ctxOptions is being set by // createContextARBVersions(..) -> setGLFunctionAvailbility(..) -> setContextVersion(..) GLContext.mapAvailableGLVersion(device, reqMajor, reqProfile, ctxMajorVersion, ctxMinorVersion, ctxOptions); destroyContextARBImpl(_context); if (DEBUG) { System.err.println(getThreadName() + ": createContextARB-MapVersionsAvailable HAVE: " +reqMajor+"."+reqProfile+ " -> "+getGLVersion()); } // only reset [and hence modify] this context state if ARB context creation was successful resetStates(); return true; } else { if (DEBUG) { System.err.println(getThreadName() + ": createContextARB-MapVersionsAvailable NOPE: "+reqMajor+"."+reqProfile); } return false; } } private final long createContextARBVersions(long share, boolean direct, int ctxOptionFlags, int majorMax, int minorMax, int majorMin, int minorMin, int major[], int minor[]) { major[0]=majorMax; minor[0]=minorMax; long _context=0; boolean ok = false; while ( !ok && GLContext.isValidGLVersion(major[0], minor[0]) && ( major[0]>majorMin || major[0]==majorMin && minor[0] >=minorMin ) ) { if (DEBUG) { System.err.println(getThreadName() + ": createContextARBVersions: share "+share+", direct "+direct+", version "+major[0]+"."+minor[0]); } _context = createContextARBImpl(share, direct, ctxOptionFlags, major[0], minor[0]); if(0 != _context) { ok = true; setGLFunctionAvailability(true, major[0], minor[0], ctxOptionFlags); } else { ok = false; } if(ok && major[0]>=3) { int[] hasMajor = new int[1]; int[] hasMinor = new int[1]; gl.glGetIntegerv(GL3.GL_MAJOR_VERSION, hasMajor, 0); gl.glGetIntegerv(GL3.GL_MINOR_VERSION, hasMinor, 0); ok = hasMajor[0]>major[0] || ( hasMajor[0]==major[0] && hasMinor[0]>=minor[0] ) ; if(!ok) { removeCachedVersion(major[0], minor[0], ctxOptionFlags); destroyContextARBImpl(_context); _context = 0; } if (DEBUG) { System.err.println(getThreadName() + ": createContextARBVersions: version verification - expected "+major[0]+"."+minor[0]+", has "+hasMajor[0]+"."+hasMinor[0]+" == "+ok); } } if(!ok) { if(!GLContext.decrementGLVersion(major, minor)) break; } } return _context; } //---------------------------------------------------------------------- // Managing the actual OpenGL version, usually figured at creation time. // As a last resort, the GL_VERSION string may be used .. // /** * If major > 0 || minor > 0 : Use passed values, determined at creation time * If major==0 && minor == 0 : Use GL_VERSION * Otherwise .. don't touch .. */ private final void setContextVersion(int major, int minor, int ctp, boolean setVersionString) { if (0==ctp) { throw new GLException("Invalid GL Version "+major+"."+minor+", ctp "+toHexString(ctp)); } if(major>0 || minor>0) { if (!GLContext.isValidGLVersion(major, minor)) { GLException e = new GLException("Invalid GL Version "+major+"."+minor+", ctp "+toHexString(ctp)); throw e; } ctxMajorVersion = major; ctxMinorVersion = minor; ctxOptions = ctp; if(setVersionString) { ctxVersionString = getGLVersion(ctxMajorVersion, ctxMinorVersion, ctxOptions, getGL().glGetString(GL.GL_VERSION)); } return; } if(major==0 && minor==0) { String versionStr = getGL().glGetString(GL.GL_VERSION); if(null==versionStr) { throw new GLException("GL_VERSION is NULL: "+this); } ctxOptions = ctp; // Set version GLVersionNumber version = new GLVersionNumber(versionStr); if (version.isValid()) { ctxMajorVersion = version.getMajor(); ctxMinorVersion = version.getMinor(); // We cannot promote a non ARB context to >= 3.1, // reduce it to 3.0 then. if ( ( ctxMajorVersion>3 || ctxMajorVersion==3 && ctxMinorVersion>=1 ) && 0 == (ctxOptions & CTX_IS_ARB_CREATED) ) { ctxMajorVersion = 3; ctxMinorVersion = 0; } if(setVersionString) { ctxVersionString = getGLVersion(ctxMajorVersion, ctxMinorVersion, ctxOptions, versionStr); } return; } } } //---------------------------------------------------------------------- // Helpers for various context implementations // private Object createInstance(GLProfile glp, String suffix, Class[] cstrArgTypes, Object[] cstrArgs) { return ReflectionUtil.createInstance(glp.getGLImplBaseClassName()+suffix, cstrArgTypes, cstrArgs, getClass().getClassLoader()); } private boolean verifyInstance(GLProfile glp, String suffix, Object instance) { return ReflectionUtil.instanceOf(instance, glp.getGLImplBaseClassName()+suffix); } /** Create the GL for this context. */ protected GL createGL(GLProfile glp) { GL gl = (GL) createInstance(glp, "Impl", new Class[] { GLProfile.class, GLContextImpl.class }, new Object[] { glp, this } ); /* FIXME: refactor dependence on Java 2D / JOGL bridge if (tracker != null) { gl.setObjectTracker(tracker); } */ return gl; } public final ProcAddressTable getGLProcAddressTable() { return glProcAddressTable; } /** * Shall return the platform extension ProcAddressTable, * ie for GLXExt, EGLExt, .. */ public abstract ProcAddressTable getPlatformExtProcAddressTable(); /** * Pbuffer support; given that this is a GLContext associated with a * pbuffer, binds this pbuffer to its texture target. */ public abstract void bindPbufferToTexture(); /** * Pbuffer support; given that this is a GLContext associated with a * pbuffer, releases this pbuffer from its texture target. */ public abstract void releasePbufferFromTexture(); public abstract ByteBuffer glAllocateMemoryNV(int arg0, float arg1, float arg2, float arg3); /** Maps the given "platform-independent" function name to a real function name. Currently this is only used to map "glAllocateMemoryNV" and associated routines to wglAllocateMemoryNV / glXAllocateMemoryNV. */ protected final String mapToRealGLFunctionName(String glFunctionName) { Map map = getFunctionNameMap(); String lookup = ( null != map ) ? map.get(glFunctionName) : null; if (lookup != null) { return lookup; } return glFunctionName; } protected abstract Map getFunctionNameMap() ; /** Maps the given "platform-independent" extension name to a real function name. Currently this is only used to map "GL_ARB_pbuffer" to "WGL_ARB_pbuffer/GLX_SGIX_pbuffer" and "GL_ARB_pixel_format" to "WGL_ARB_pixel_format/n.a." */ protected final String mapToRealGLExtensionName(String glExtensionName) { Map map = getExtensionNameMap(); String lookup = ( null != map ) ? map.get(glExtensionName) : null; if (lookup != null) { return lookup; } return glExtensionName; } protected abstract Map getExtensionNameMap() ; /** Helper routine which resets a ProcAddressTable generated by the GLEmitter by looking up anew all of its function pointers. */ protected final void resetProcAddressTable(ProcAddressTable table) { table.reset(getDrawableImpl().getGLDynamicLookupHelper() ); } private final void initGLRendererStrings() { final GLDynamicLookupHelper glDynLookupHelper = getDrawableImpl().getGLDynamicLookupHelper(); final long _glGetString = glDynLookupHelper.dynamicLookupFunction("glGetString"); if(0 == _glGetString) { // FIXME System.err.println("Warning: Entry point to 'glGetString' is NULL."); Thread.dumpStack(); } else { final String _glRenderer = glGetStringInt(GL.GL_RENDERER, _glGetString); if(null == _glRenderer) { // FIXME System.err.println("Warning: GL_RENDERER is NULL."); Thread.dumpStack(); } else { glRenderer = _glRenderer; glRendererLowerCase = glRenderer.toLowerCase(); } } } protected final String getGLRendererString(boolean lowerCase) { return lowerCase ? glRendererLowerCase : glRenderer; } /** * Sets the OpenGL implementation class and * the cache of which GL functions are available for calling through this * context. See {@link #isFunctionAvailable(String)} for more information on * the definition of "available". *
* All ProcaddressTables are being determined, the GL version is being set * and the extension cache is determined as well. * * @param force force the setting, even if is already being set. * This might be useful if you change the OpenGL implementation. * @param major OpenGL major version * @param minor OpenGL minor version * @param ctxProfileBits OpenGL context profile and option bits, see {@link javax.media.opengl.GLContext#CTX_OPTION_ANY} * * @see #setContextVersion * @see javax.media.opengl.GLContext#CTX_OPTION_ANY * @see javax.media.opengl.GLContext#CTX_PROFILE_COMPAT * @see javax.media.opengl.GLContext#CTX_IMPL_ES2_COMPAT */ protected final void setGLFunctionAvailability(boolean force, int major, int minor, int ctxProfileBits) { if(null!=this.gl && null!=glProcAddressTable && !force) { return; // already done and not forced } if(null==this.gl || !verifyInstance(gl.getGLProfile(), "Impl", this.gl)) { setGL(createGL(getGLDrawable().getGLProfile())); } updateGLXProcAddressTable(); initGLRendererStrings(); if(!isCurrentContextHardwareRasterizer()) { ctxProfileBits |= GLContext.CTX_IMPL_ACCEL_SOFT; } final AbstractGraphicsConfiguration aconfig = drawable.getNativeSurface().getGraphicsConfiguration(); final AbstractGraphicsDevice adevice = aconfig.getScreen().getDevice(); contextFQN = getContextFQN(adevice, major, minor, ctxProfileBits); if (DEBUG) { System.err.println(getThreadName() + ": Context FQN: "+contextFQN+" - "+GLContext.getGLVersion(major, minor, ctxProfileBits, null)); } // // UpdateGLProcAddressTable functionality // ProcAddressTable table = null; synchronized(mappedContextTypeObjectLock) { table = mappedGLProcAddress.get( contextFQN ); if(null != table && !verifyInstance(gl.getGLProfile(), "ProcAddressTable", table)) { throw new InternalError("GLContext GL ProcAddressTable mapped key("+contextFQN+" - " + GLContext.getGLVersion(major, minor, ctxProfileBits, null)+ ") -> "+ table.getClass().getName()+" not matching "+gl.getGLProfile().getGLImplBaseClassName()); } } if(null != table) { glProcAddressTable = table; if(DEBUG) { System.err.println(getThreadName() + ": GLContext GL ProcAddressTable reusing key("+contextFQN+") -> "+toHexString(table.hashCode())); } } else { glProcAddressTable = (ProcAddressTable) createInstance(gl.getGLProfile(), "ProcAddressTable", new Class[] { FunctionAddressResolver.class } , new Object[] { new GLProcAddressResolver() } ); resetProcAddressTable(getGLProcAddressTable()); synchronized(mappedContextTypeObjectLock) { mappedGLProcAddress.put(contextFQN, getGLProcAddressTable()); if(DEBUG) { System.err.println(getThreadName() + ": GLContext GL ProcAddressTable mapping key("+contextFQN+") -> "+toHexString(getGLProcAddressTable().hashCode())); } } } // // Update ExtensionAvailabilityCache // ExtensionAvailabilityCache eCache; synchronized(mappedContextTypeObjectLock) { eCache = mappedExtensionAvailabilityCache.get( contextFQN ); } if(null != eCache) { extensionAvailability = eCache; if(DEBUG) { System.err.println(getThreadName() + ": GLContext GL ExtensionAvailabilityCache reusing key("+contextFQN+") -> "+toHexString(eCache.hashCode()) + " - entries: "+eCache.getTotalExtensionCount()); } } else { extensionAvailability = new ExtensionAvailabilityCache(); setContextVersion(major, minor, ctxProfileBits, false); // pre-set of GL version, required for extension cache usage extensionAvailability.reset(this); synchronized(mappedContextTypeObjectLock) { mappedExtensionAvailabilityCache.put(contextFQN, extensionAvailability); if(DEBUG) { System.err.println(getThreadName() + ": GLContext GL ExtensionAvailabilityCache mapping key("+contextFQN+") -> "+toHexString(extensionAvailability.hashCode()) + " - entries: "+extensionAvailability.getTotalExtensionCount()); } } } if( isExtensionAvailable("GL_ARB_ES2_compatibility") ) { ctxProfileBits |= CTX_IMPL_ES2_COMPAT; } // // Set GL Version (complete w/ version string) // setContextVersion(major, minor, ctxProfileBits, true); setDefaultSwapInterval(); } protected final void removeCachedVersion(int major, int minor, int ctxProfileBits) { if(!isCurrentContextHardwareRasterizer()) { ctxProfileBits |= GLContext.CTX_IMPL_ACCEL_SOFT; } final AbstractGraphicsConfiguration aconfig = drawable.getNativeSurface().getGraphicsConfiguration(); final AbstractGraphicsDevice adevice = aconfig.getScreen().getDevice(); contextFQN = getContextFQN(adevice, major, minor, ctxProfileBits); if (DEBUG) { System.err.println(getThreadName() + ": RM Context FQN: "+contextFQN+" - "+GLContext.getGLVersion(major, minor, ctxProfileBits, null)); } synchronized(mappedContextTypeObjectLock) { ProcAddressTable table = mappedGLProcAddress.remove( contextFQN ); if(DEBUG) { System.err.println(getThreadName() + ": RM GLContext GL ProcAddressTable mapping key("+contextFQN+") -> "+table.hashCode()); } } synchronized(mappedContextTypeObjectLock) { ExtensionAvailabilityCache eCache = mappedExtensionAvailabilityCache.remove( contextFQN ); if(DEBUG) { System.err.println(getThreadName() + ": RM GLContext GL ExtensionAvailabilityCache mapping key("+contextFQN+") -> "+eCache.hashCode()); } } } private final boolean isCurrentContextHardwareRasterizer() { boolean isHardwareRasterizer = true; if(!drawable.getChosenGLCapabilities().getHardwareAccelerated()) { isHardwareRasterizer = false; } else { isHardwareRasterizer = ! ( glRendererLowerCase.contains("software") /* Mesa3D */ || glRendererLowerCase.contains("mesa x11") /* Mesa3D*/ || glRendererLowerCase.contains("softpipe") /* Gallium */ || glRendererLowerCase.contains("llvmpipe") /* Gallium */ ); } return isHardwareRasterizer; } /** * Updates the platform's 'GLX' function cache */ protected abstract void updateGLXProcAddressTable(); protected abstract StringBuilder getPlatformExtensionsStringImpl(); public final boolean isFunctionAvailable(String glFunctionName) { // Check GL 1st (cached) if(null!=glProcAddressTable) { // null if this context wasn't not created try { if(0!=glProcAddressTable.getAddressFor(glFunctionName)) { return true; } } catch (Exception e) {} } // Check platform extensions 2nd (cached) - context had to be enabled once final ProcAddressTable pTable = getPlatformExtProcAddressTable(); if(null!=pTable) { try { if(0!=pTable.getAddressFor(glFunctionName)) { return true; } } catch (Exception e) {} } // dynamic function lookup at last incl name aliasing (not cached) DynamicLookupHelper dynLookup = getDrawableImpl().getGLDynamicLookupHelper(); String tmpBase = GLExtensionNames.normalizeVEN(GLExtensionNames.normalizeARB(glFunctionName, true), true); long addr = 0; int variants = GLExtensionNames.getFuncNamePermutationNumber(tmpBase); for(int i = 0; 0==addr && i < variants; i++) { String tmp = GLExtensionNames.getFuncNamePermutation(tmpBase, i); try { addr = dynLookup.dynamicLookupFunction(tmp); } catch (Exception e) { } } if(0!=addr) { return true; } return false; } public boolean isExtensionAvailable(String glExtensionName) { if(null!=extensionAvailability) { return extensionAvailability.isExtensionAvailable(mapToRealGLExtensionName(glExtensionName)); } return false; } public final int getPlatformExtensionCount() { return null != extensionAvailability ? extensionAvailability.getPlatformExtensionCount() : 0; } public final String getPlatformExtensionsString() { if(null!=extensionAvailability) { return extensionAvailability.getPlatformExtensionsString(); } return null; } public final int getGLExtensionCount() { return null != extensionAvailability ? extensionAvailability.getGLExtensionCount() : 0; } public final String getGLExtensionsString() { if(null!=extensionAvailability) { return extensionAvailability.getGLExtensionsString(); } return null; } public final boolean isExtensionCacheInitialized() { if(null!=extensionAvailability) { return extensionAvailability.isInitialized(); } return false; } protected static String getContextFQN(AbstractGraphicsDevice device, int major, int minor, int ctxProfileBits) { // remove non-key values ctxProfileBits &= ~( GLContext.CTX_OPTION_DEBUG | GLContext.CTX_IMPL_ES2_COMPAT ) ; return device.getUniqueID() + "-" + toHexString(composeBits(major, minor, ctxProfileBits)); } protected String getContextFQN() { return contextFQN; } /** Indicates which floating-point pbuffer implementation is in use. Returns one of GLPbuffer.APPLE_FLOAT, GLPbuffer.ATI_FLOAT, or GLPbuffer.NV_FLOAT. */ public int getFloatingPointMode() throws GLException { throw new GLException("Not supported on non-pbuffer contexts"); } /** On some platforms the mismatch between OpenGL's coordinate system (origin at bottom left) and the window system's coordinate system (origin at top left) necessitates a vertical flip of pixels read from offscreen contexts. */ public abstract boolean offscreenImageNeedsVerticalFlip(); /** Only called for offscreen contexts; needed by glReadPixels */ public abstract int getOffscreenContextPixelDataType(); //---------------------------------------------------------------------- // Helpers for buffer object optimizations public void setBufferSizeTracker(GLBufferSizeTracker bufferSizeTracker) { this.bufferSizeTracker = bufferSizeTracker; } public GLBufferSizeTracker getBufferSizeTracker() { return bufferSizeTracker; } public GLBufferStateTracker getBufferStateTracker() { return bufferStateTracker; } public GLStateTracker getGLStateTracker() { return glStateTracker; } //--------------------------------------------------------------------------- // Helpers for context optimization where the last context is left // current on the OpenGL worker thread // public boolean hasWaiters() { return lock.getQueueLength()>0; } //--------------------------------------------------------------------------- // GL_ARB_debug_output, GL_AMD_debug_output helpers // public final String getGLDebugMessageExtension() { return glDebugHandler.getExtension(); } public final boolean isGLDebugMessageEnabled() { return glDebugHandler.isEnabled(); } public final int getContextCreationFlags() { return additionalCtxCreationFlags; } public final void setContextCreationFlags(int flags) { if(!isCreated()) { additionalCtxCreationFlags = flags & GLContext.CTX_OPTION_DEBUG; } } public final boolean isGLDebugSynchronous() { return glDebugHandler.isSynchronous(); } public final void setGLDebugSynchronous(boolean synchronous) { glDebugHandler.setSynchronous(synchronous); } public final void enableGLDebugMessage(boolean enable) throws GLException { if(!isCreated()) { if(enable) { additionalCtxCreationFlags |= GLContext.CTX_OPTION_DEBUG; } else { additionalCtxCreationFlags &= ~GLContext.CTX_OPTION_DEBUG; } } else if(0 != (additionalCtxCreationFlags & GLContext.CTX_OPTION_DEBUG) && null != getGLDebugMessageExtension()) { glDebugHandler.enable(enable); } } public final void addGLDebugListener(GLDebugListener listener) { glDebugHandler.addListener(listener); } public final void removeGLDebugListener(GLDebugListener listener) { glDebugHandler.removeListener(listener); } public final void glDebugMessageControl(int source, int type, int severity, int count, IntBuffer ids, boolean enabled) { if(glDebugHandler.isExtensionARB()) { gl.getGL2GL3().glDebugMessageControlARB(source, type, severity, count, ids, enabled); } else if(glDebugHandler.isExtensionAMD()) { gl.getGL2GL3().glDebugMessageEnableAMD(GLDebugMessage.translateARB2AMDCategory(source, type), severity, count, ids, enabled); } } public final void glDebugMessageControl(int source, int type, int severity, int count, int[] ids, int ids_offset, boolean enabled) { if(glDebugHandler.isExtensionARB()) { gl.getGL2GL3().glDebugMessageControlARB(source, type, severity, count, ids, ids_offset, enabled); } else if(glDebugHandler.isExtensionAMD()) { gl.getGL2GL3().glDebugMessageEnableAMD(GLDebugMessage.translateARB2AMDCategory(source, type), severity, count, ids, ids_offset, enabled); } } public final void glDebugMessageInsert(int source, int type, int id, int severity, String buf) { final int len = (null != buf) ? buf.length() : 0; if(glDebugHandler.isExtensionARB()) { gl.getGL2GL3().glDebugMessageInsertARB(source, type, id, severity, len, buf); } else if(glDebugHandler.isExtensionAMD()) { gl.getGL2GL3().glDebugMessageInsertAMD(GLDebugMessage.translateARB2AMDCategory(source, type), severity, id, len, buf); } } /** Internal bootstraping glGetString(GL_RENDERER) */ protected static native String glGetStringInt(int name, long procAddress); }