diff options
Diffstat (limited to 'src/classes/com/sun/opengl/impl/x11/glx/X11GLXContext.java')
| -rw-r--r-- | src/classes/com/sun/opengl/impl/x11/glx/X11GLXContext.java | 339 |
1 files changed, 339 insertions, 0 deletions
diff --git a/src/classes/com/sun/opengl/impl/x11/glx/X11GLXContext.java b/src/classes/com/sun/opengl/impl/x11/glx/X11GLXContext.java new file mode 100644 index 000000000..2821a3049 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/x11/glx/X11GLXContext.java @@ -0,0 +1,339 @@ +/* + * Copyright (c) 2003 Sun Microsystems, Inc. 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 com.sun.opengl.impl.x11.glx; + +import java.nio.*; +import java.util.*; +import javax.media.opengl.*; +import com.sun.opengl.impl.*; +import com.sun.opengl.impl.x11.*; + +public abstract class X11GLXContext extends GLContextImpl { + protected X11GLXDrawable drawable; + protected long context; + private boolean glXQueryExtensionsStringInitialized; + private boolean glXQueryExtensionsStringAvailable; + private static final Map/*<String, String>*/ functionNameMap; + private GLXExt glXExt; + // Table that holds the addresses of the native C-language entry points for + // GLX extension functions. + private GLXExtProcAddressTable glXExtProcAddressTable; + + static { + functionNameMap = new HashMap(); + functionNameMap.put("glAllocateMemoryNV", "glXAllocateMemoryNV"); + functionNameMap.put("glFreeMemoryNV", "glXFreeMemoryNV"); + } + + public X11GLXContext(X11GLXDrawable drawable, + GLContext shareWith) { + super(shareWith); + this.drawable = drawable; + } + + public Object getPlatformGLExtensions() { + return getGLXExt(); + } + + public GLXExt getGLXExt() { + if (glXExt == null) { + glXExt = new GLXExtImpl(this); + } + return glXExt; + } + + public GLDrawable getGLDrawable() { + return drawable; + } + + protected String mapToRealGLFunctionName(String glFunctionName) { + String lookup = (String) functionNameMap.get(glFunctionName); + if (lookup != null) { + return lookup; + } + return glFunctionName; + } + + protected String mapToRealGLExtensionName(String glExtensionName) { + return glExtensionName; + } + + /** Helper routine which usually just turns around and calls + * createContext (except for pbuffers, which use a different context + * creation mechanism). Should only be called by {@link + * makeCurrentImpl()}. + */ + protected abstract void create(); + + /** + * Creates and initializes an appropriate OpenGL context. Should only be + * called by {@link create()}. + */ + protected void createContext(boolean onscreen) { + XVisualInfo vis = drawable.chooseVisual(onscreen); + X11GLXContext other = (X11GLXContext) GLContextShareSet.getShareContext(this); + long share = 0; + if (other != null) { + share = other.getContext(); + if (share == 0) { + throw new GLException("GLContextShareSet returned an invalid OpenGL context"); + } + } + context = GLX.glXCreateContext(drawable.getNativeWindow().getDisplayHandle(), vis, share, onscreen); + if (context == 0) { + throw new GLException("Unable to create OpenGL context"); + } + GLContextShareSet.contextCreated(this); + } + + protected int makeCurrentImpl() throws GLException { + if (drawable.getNativeWindow().getWindowHandle() == 0) { + if (DEBUG) { + System.err.println("drawable not properly initialized"); + } + return CONTEXT_NOT_CURRENT; + } + boolean created = false; + if (context == 0) { + create(); + if (DEBUG) { + System.err.println(getThreadName() + ": !!! Created GL context for " + getClass().getName()); + } + created = true; + } + + if (GLX.glXGetCurrentContext() != context) { + if (!GLX.glXMakeContextCurrent(drawable.getNativeWindow().getDisplayHandle(), + drawable.getNativeWindow().getWindowHandle(), + drawable.getNativeWindow().getWindowHandle(), + context)) { + throw new GLException("Error making context current"); + } else { + if (DEBUG && (VERBOSE || created)) { + System.err.println(getThreadName() + ": glXMakeCurrent(display " + + toHexString(drawable.getNativeWindow().getDisplayHandle()) + + ", drawable " + toHexString(drawable.getNativeWindow().getWindowHandle()) + + ", context " + toHexString(context) + ") succeeded"); + } + } + } + + if (created) { + resetGLFunctionAvailability(); + return CONTEXT_CURRENT_NEW; + } + return CONTEXT_CURRENT; + } + + protected void releaseImpl() throws GLException { + getGLDrawable().getFactory().lockToolkit(); + try { + if (!GLX.glXMakeContextCurrent(drawable.getNativeWindow().getDisplayHandle(), 0, 0, 0)) { + throw new GLException("Error freeing OpenGL context"); + } + } finally { + getGLDrawable().getFactory().unlockToolkit(); + } + } + + protected void destroyImpl() throws GLException { + getGLDrawable().getFactory().lockToolkit(); + try { + if (context != 0) { + if (DEBUG) { + System.err.println("glXDestroyContext(0x" + + Long.toHexString(drawable.getNativeWindow().getDisplayHandle()) + + ", 0x" + + Long.toHexString(context) + ")"); + } + GLX.glXDestroyContext(drawable.getNativeWindow().getDisplayHandle(), context); + if (DEBUG) { + System.err.println("!!! Destroyed OpenGL context " + context); + } + context = 0; + GLContextShareSet.contextDestroyed(this); + } + } finally { + getGLDrawable().getFactory().unlockToolkit(); + } + } + + public boolean isCreated() { + return (context != 0); + } + + public void copy(GLContext source, int mask) throws GLException { + long dst = getContext(); + long src = ((X11GLXContext) source).getContext(); + if (src == 0) { + throw new GLException("Source OpenGL context has not been created"); + } + if (dst == 0) { + throw new GLException("Destination OpenGL context has not been created"); + } + if (drawable.getNativeWindow().getDisplayHandle() == 0) { + throw new GLException("Connection to X display not yet set up"); + } + getGLDrawable().getFactory().lockToolkit(); + try { + GLX.glXCopyContext(drawable.getNativeWindow().getDisplayHandle(), src, dst, mask); + // Should check for X errors and raise GLException + } finally { + getGLDrawable().getFactory().unlockToolkit(); + } + } + + protected void resetGLFunctionAvailability() { + super.resetGLFunctionAvailability(); + if (DEBUG) { + System.err.println(getThreadName() + ": !!! Initializing GLX extension address table"); + } + if (glXExtProcAddressTable == null) { + // FIXME: cache ProcAddressTables by capability bits so we can + // share them among contexts with the same capabilities + glXExtProcAddressTable = new GLXExtProcAddressTable(); + } + resetProcAddressTable(getGLXExtProcAddressTable()); + } + + public final GLXExtProcAddressTable getGLXExtProcAddressTable() { + return glXExtProcAddressTable; + } + + public synchronized String getPlatformExtensionsString() { + if (!glXQueryExtensionsStringInitialized) { + glXQueryExtensionsStringAvailable = + ((GLDrawableFactoryImpl)getGLDrawable().getFactory()).dynamicLookupFunction("glXQueryExtensionsString") != 0; + glXQueryExtensionsStringInitialized = true; + } + if (glXQueryExtensionsStringAvailable) { + getGLDrawable().getFactory().lockToolkit(); + try { + String ret = GLX.glXQueryExtensionsString(drawable.getNativeWindow().getDisplayHandle(), + drawable.getNativeWindow().getScreenIndex()); + if (DEBUG) { + System.err.println("!!! GLX extensions: " + ret); + } + return ret; + } finally { + getGLDrawable().getFactory().unlockToolkit(); + } + } else { + return ""; + } + } + + public boolean isFunctionAvailable(String glFunctionName) + { + boolean available = super.isFunctionAvailable(glFunctionName); + + // Sanity check for implementations that use proc addresses for run-time + // linking: if the function IS available, then make sure there's a proc + // address for it if it's an extension or not part of the OpenGL 1.1 core + // (post GL 1.1 functions are run-time linked on windows). + assert(!available || + (getGLProcAddressTable().getAddressFor(mapToRealGLFunctionName(glFunctionName)) != 0 || + FunctionAvailabilityCache.isPartOfGLCore("1.1", mapToRealGLFunctionName(glFunctionName))) + ); + + return available; + } + + public boolean isExtensionAvailable(String glExtensionName) { + if (glExtensionName.equals("GL_ARB_pbuffer") || + glExtensionName.equals("GL_ARB_pixel_format")) { + return ((GLDrawableFactory)getGLDrawable().getFactory()).canCreateGLPbuffer(); + } + return super.isExtensionAvailable(glExtensionName); + } + + + public void setSwapInterval(int interval) { + getGLDrawable().getFactory().lockToolkit(); + try { + // FIXME: make the context current first? Currently assumes that + // will not be necessary. Make the caller do this? + GLXExt glXExt = getGLXExt(); + if (glXExt.isExtensionAvailable("GLX_SGI_swap_control")) { + glXExt.glXSwapIntervalSGI(interval); + } + } finally { + getGLDrawable().getFactory().unlockToolkit(); + } + } + + public ByteBuffer glAllocateMemoryNV(int arg0, float arg1, float arg2, float arg3) { + return getGLXExt().glXAllocateMemoryNV(arg0, arg1, arg2, arg3); + } + + public int getOffscreenContextPixelDataType() { + throw new GLException("Should not call this"); + } + + public int getOffscreenContextReadBuffer() { + throw new GLException("Should not call this"); + } + + public boolean offscreenImageNeedsVerticalFlip() { + throw new GLException("Should not call this"); + } + + public void bindPbufferToTexture() { + throw new GLException("Should not call this"); + } + + public void releasePbufferFromTexture() { + throw new GLException("Should not call this"); + } + + public boolean isOptimizable() { + return (super.isOptimizable() && + !X11GLXDrawableFactory.getX11Factory().isVendorATI()); + } + + //---------------------------------------------------------------------- + // Internals only below this point + // + + public long getContext() { + return context; + } + +} |