Merged JSR-231 branch on to the main JOGL trunk. The main trunk now

contains the evolving JSR-231 Reference Implementation and the JSR-231
branch is permanently closed.


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@401 232f8b59-042b-4e1e-8c03-345bb8c30851

1 files changed, 0 insertions, 315 deletions

diff --git a/src/net/java/games/jogl/impl/FunctionAvailabilityCache.java b/src/net/java/games/jogl/impl/FunctionAvailabilityCache.java
deleted file mode 100644
index be5e26067..000000000
--- a/src/net/java/games/jogl/impl/FunctionAvailabilityCache.java
+++ /dev/null
@@ -1,315 +0,0 @@
-/*
- * 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 net.java.games.jogl.impl;
-
-import net.java.games.jogl.*;
-import java.util.*;
-import java.awt.Canvas;
-import java.awt.Graphics;
-import java.awt.GraphicsConfiguration;
-import java.lang.reflect.*;
-
-/**
- * A utility object intended to be used by implementations to act as a cache
- * of which OpenGL functions are currently available on both the host machine
- * and display.
- */
-public final class FunctionAvailabilityCache {
-  private static final boolean DEBUG = Debug.debug("FunctionAvailabilityCache");
-
-  FunctionAvailabilityCache(GLContext context)
-  {
-    this.context = context;
-  }
-
-  /**
-   * Flush the cache. The cache will be rebuilt lazily as calls to {@link
-   * #isFunctionAvailable(String)} are received.
-   */
-  public void flush()
-  {
-    availabilityCache.clear();
-    availableExtensionCache.clear();
-  }
-
-  public boolean isFunctionAvailable(String glFunctionName)
-  {
-    if (DEBUG) {
-      System.err.println("!!! CHECKING FOR AVAILABILITY OF: "+ glFunctionName);
-    }
-
-    Boolean available = (Boolean)availabilityCache.get(glFunctionName);
-
-    if (available == null) // not in availabilityCache
-    {
-      if (isPartOfAvailableExtensions(glFunctionName) ||
-          isPartOfGLCore(context.getGL().glGetString(GL.GL_VERSION), glFunctionName))
-      {
-        available = Boolean.TRUE;
-      }
-      else
-      {
-        available = Boolean.FALSE;
-      }
-      
-      availabilityCache.put(glFunctionName, available);
-    }
-
-    if (DEBUG) {
-      System.err.println("!!! AVAILABILITY OF "+ glFunctionName + ": " + available.booleanValue());
-    }
-
-    return available.booleanValue();
-  }
-
-  public boolean isExtensionAvailable(String glExtensionName) {
-    initAvailableExtensions();
-    return availableExtensionCache.contains(glExtensionName);
-  }
-
-  protected void initAvailableExtensions() {
-    // if hash is empty (meaning it was flushed), pre-cache it with the list
-    // of extensions that are in the GL_EXTENSIONS string
-    if (availableExtensionCache.isEmpty()) {
-      GL gl = context.getGL();
-      if (DEBUG) {
-        System.err.println("!!! Pre-caching extension availability");
-      }
-      String allAvailableExtensions =
-        gl.glGetString(GL.GL_EXTENSIONS) + " " + context.getPlatformExtensionsString();
-      if (DEBUG) {
-        System.err.println("!!! Available extensions: " + allAvailableExtensions);
-        System.err.println("!!! GL vendor: " + gl.glGetString(GL.GL_VENDOR));
-      }
-      StringTokenizer tok = new StringTokenizer(allAvailableExtensions);
-      while (tok.hasMoreTokens()) {
-        String availableExt = tok.nextToken().trim();
-        availableExt = availableExt.intern();
-        availableExtensionCache.add(availableExt);
-        if (DEBUG) {
-          System.err.println("!!!   Available: " + availableExt);
-        }
-      }
-
-      // put a dummy var in here so that the cache is no longer empty even if
-      // no extensions are in the GL_EXTENSIONS string
-      availableExtensionCache.add("<INTERNAL_DUMMY_PLACEHOLDER>");
-    }
-  }
-
-  protected boolean isPartOfAvailableExtensions(String glFunctionName)
-  {    
-    initAvailableExtensions();
-
-    // First, find the extension to which the function corresponds
-    String extensionName = getExtensionCorrespondingToFunction(glFunctionName);
-
-    // Now see if that extension is available
-    boolean extensionAvailable = availableExtensionCache.contains(extensionName);
-
-    return extensionAvailable;
-  }
-
-  /**
-   * Returns true if the given OpenGL function is part of the OpenGL core
-   * that corresponds to the give OpenGL version string.
-   *
-   * @param glVersionString must be of the form "X" or "X.Y" or "X.Y.Z", where
-   * X, Y, and Z are integers
-   * @exception GLException if the glFunctionName passed in is
-   * not the name of any known OpenGL extension function. 
-   */
-  public static boolean isPartOfGLCore(String glVersionString, String glFunctionName)
-  {
-    String funcCoreVersionString =
-      StaticGLInfo.getFunctionAssociation(glFunctionName);
-
-    if (funcCoreVersionString == null) {
-      // No extension string was found in the glext.h/wglext.h/glxext.h
-      // headers when building the StaticGLInfo class. So either it's a new
-      // extension that's not in those headers, or it's not an opengl
-      // extension. Either way it's an illegal argument.
-      throw new GLException(
-        "Function \"" + glFunctionName + "\" does not " +
-        "correspond to any known OpenGL extension or core version.");
-    }
-
-    Version actualVersion;
-    try
-    {
-      actualVersion = new Version(funcCoreVersionString);
-    }
-    catch (IllegalArgumentException e)
-    {      
-      // funcCoreVersionString is not an OpenGL version identifier (i.e., not
-      // of the form GL_VERSION_XXX or X.Y).
-      //
-      // Since the association string returned from
-      // StaticGLInfo.getFunctionAssociation() was not null, this function
-      // must be an OpenGL extension function.
-      //
-      // Therefore this function can't be part of any OpenGL core.
-      return false;
-    }
-    
-    Version versionToCheck;
-    try
-    {
-      versionToCheck = new Version(glVersionString);
-    }
-    catch (IllegalArgumentException e)
-    {
-      // user did not supply a valid OpenGL version identifier
-      throw new IllegalArgumentException(
-          "Illegally formatted OpenGL version identifier: \"" + glVersionString + "\"");
-    }
-    
-    // See if the version number of glVersionString is less than or equal to
-    // the OpenGL specification number to which the given function actually
-    // belongs.
-    if (actualVersion.compareTo(versionToCheck) <= 0)
-    {
-      if (DEBUG) {
-        System.err.println(
-          glFunctionName + " is in core OpenGL " + glVersionString +
-          " because it is in OpenGL " + funcCoreVersionString);
-      }
-      return true;
-    }
-    
-    if (DEBUG) {
-      System.err.println(
-        glFunctionName + " is NOT a part of the OpenGL " + glVersionString + " core" +
-        "; it is part of OpenGL " + funcCoreVersionString);
-    }
-
-    return false;
-  }
-
-  /** Returns the extension name that corresponds to the given extension
-   * function. For example, it will return "GL_EXT_vertex_array" when the
-   * argument is "glNormalPointerEXT".
-   *
-   * Please see http://oss.sgi.com/projects/ogl-sample/registry/index.html for
-   * a list of extension names and the functions they expose.
-   */
-  protected static String getExtensionCorrespondingToFunction(String glFunctionName)
-  {
-    // HACK: FIXME!!! return something I know is supported so I can test other
-    // functions. 
-    return StaticGLInfo.getFunctionAssociation(glFunctionName);
-  }
-
-  //----------------------------------------------------------------------
-  // Internals only below this point
-  //
-
-  private HashMap availabilityCache = new HashMap(50); 
-  private HashSet availableExtensionCache = new HashSet(50);
-  private GLContext context;
-
-  /**
-   * A class for storing and comparing revision version numbers.
-   */
-  private static class Version implements Comparable
-  {
-    private int major, minor, sub;
-    public Version(int majorRev, int minorRev, int subMinorRev)
-    {
-      major = majorRev;
-      minor = minorRev;
-      sub = subMinorRev;
-    }
-
-    /**
-     * @param versionString must be of the form "GL_VERSION_X" or
-     * "GL_VERSION_X_Y" or "GL_VERSION_X_Y_Z" or "X.Y", where X, Y,
-     * and Z are integers.
-     *
-     * @exception IllegalArgumentException if the argument is not a valid
-     * OpenGL version identifier
-     */
-    public Version(String versionString)
-    {
-      try 
-      {
-        if (versionString.startsWith("GL_VERSION_"))
-        {
-          StringTokenizer tok = new StringTokenizer(versionString, "_");
-
-          tok.nextToken(); // GL_
-          tok.nextToken(); // VERSION_ 
-          if (!tok.hasMoreTokens()) { major = 0; return; }
-          major = Integer.valueOf(tok.nextToken()).intValue();
-          if (!tok.hasMoreTokens()) { minor = 0; return; }
-          minor = Integer.valueOf(tok.nextToken()).intValue();
-          if (!tok.hasMoreTokens()) { sub = 0; return; }
-          sub = Integer.valueOf(tok.nextToken()).intValue();
-        }
-        else
-        {
-          StringTokenizer tok = new StringTokenizer(versionString, ". ");
-          major = Integer.valueOf(tok.nextToken()).intValue();
-          minor = Integer.valueOf(tok.nextToken()).intValue();
-        }
-      }
-      catch (Exception e)
-      {
-        throw new IllegalArgumentException(
-          "Illegally formatted version identifier: \"" + versionString + "\"");
-      }
-    }
-
-    public int compareTo(Object o)
-    {
-      Version vo = (Version)o;
-      if (major > vo.major) return 1; 
-      else if (major < vo.major) return -1; 
-      else if (minor > vo.minor) return 1; 
-      else if (minor < vo.minor) return -1; 
-      else if (sub > vo.sub) return 1; 
-      else if (sub < vo.sub) return -1; 
-
-      return 0; // they are equal
-    }
-    
-  } // end class Version
-}
-