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diff --git a/src/java/com/sun/gluegen/opengl/GLEmitter.java b/src/java/com/sun/gluegen/opengl/GLEmitter.java
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+/*
+ * Copyright (c) 2003-2005 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.gluegen.opengl;
+
+import java.io.*;
+import java.text.MessageFormat;
+import java.util.*;
+import com.sun.gluegen.*;
+import com.sun.gluegen.cgram.types.*;
+import com.sun.gluegen.procaddress.*;
+import com.sun.gluegen.runtime.*;
+import com.sun.gluegen.runtime.opengl.GLExtensionNames;
+
+/**
+ * A subclass of ProcAddressEmitter with special OpenGL-specific
+ * configuration abilities.
+ */
+public class GLEmitter extends ProcAddressEmitter
+{
+ // Keeps track of which MethodBindings were created for handling
+ // Buffer Object variants. Used as a Set rather than a Map.
+ private Map/*<MethodBinding>*/ bufferObjectMethodBindings = new IdentityHashMap();
+
+ static class BufferObjectKind {
+ private BufferObjectKind() {}
+
+ static final BufferObjectKind UNPACK_PIXEL = new BufferObjectKind();
+ static final BufferObjectKind PACK_PIXEL = new BufferObjectKind();
+ static final BufferObjectKind ARRAY = new BufferObjectKind();
+ static final BufferObjectKind ELEMENT = new BufferObjectKind();
+ }
+
+ public void beginEmission(GlueEmitterControls controls) throws IOException
+ {
+ getGLConfig().parseGLHeaders(controls);
+ renameExtensionsIntoCore();
+ if (getGLConfig().getAutoUnifyExtensions()) {
+ unifyExtensions(controls);
+ }
+ super.beginEmission(controls);
+ }
+
+ protected void renameExtensionsIntoCore() {
+ // This method handles renaming of entire extensions into the
+ // OpenGL core namespace. For example, it is used to move certain
+ // OpenGL ES (OES) extensions into the core namespace which are
+ // already in the core namespace in desktop OpenGL. It builds upon
+ // renaming mechanisms that are built elsewhere.
+
+ GLConfiguration config = getGLConfig();
+ BuildStaticGLInfo glInfo = config.getGLInfo();
+ for (Iterator iter = config.getExtensionsRenamedIntoCore().iterator();
+ iter.hasNext(); ) {
+ String extension = (String) iter.next();
+ Set/*<String>*/ declarations = glInfo.getDeclarations(extension);
+ if (declarations != null) {
+ for (Iterator i2 = declarations.iterator(); i2.hasNext(); ) {
+ String decl = (String) i2.next();
+ boolean isGLFunction = GLExtensionNames.isGLFunction(decl);
+ boolean isGLEnumeration = false;
+ if (!isGLFunction) {
+ isGLEnumeration = GLExtensionNames.isGLEnumeration(decl);
+ }
+ if (isGLFunction || isGLEnumeration) {
+ String renamed = GLExtensionNames.normalize(decl, isGLFunction);
+ if(!renamed.equals(decl)) {
+ config.addJavaSymbolRename(decl, renamed);
+ }
+ }
+ }
+ }
+ }
+ }
+
+ class ExtensionUnifier implements SymbolFilter {
+ private List/*<ConstantDefinition>*/ constants;
+ private List/*<FunctionSymbol>*/ functions;
+
+ public void filterSymbols(List/*<ConstantDefinition>*/ constants,
+ List/*<FunctionSymbol>*/ functions) {
+ this.constants = constants;
+ this.functions = functions;
+ doWork();
+ }
+
+ public List/*<ConstantDefinition>*/ getConstants() {
+ return constants;
+ }
+
+ public List/*<FunctionSymbol>*/ getFunctions() {
+ return functions;
+ }
+
+ private void doWork() {
+ BuildStaticGLInfo glInfo = getGLConfig().getGLInfo();
+ if (glInfo == null) {
+ return;
+ }
+ // Try to retain a "good" ordering for these symbols
+ Map/*<String, ConstantDefinition>*/ constantMap = new LinkedHashMap();
+ Map/*<String, FunctionSymbol>*/ functionMap = new LinkedHashMap();
+ for (Iterator iter = constants.iterator(); iter.hasNext(); ) {
+ ConstantDefinition def = (ConstantDefinition) iter.next();
+ constantMap.put(def.getName(), def);
+ }
+ for (Iterator iter = functions.iterator(); iter.hasNext(); ) {
+ FunctionSymbol sym = (FunctionSymbol) iter.next();
+ functionMap.put(sym.getName(), sym);
+ }
+ // Go through all of the declared extensions.
+ // For each extension, look at its #define and function symbols.
+ // If we find all of the extension's symbols in the core API under
+ // non-ARB (or whatever is the suffix) names, then remove this extension
+ // from the public API. If it turns out that we are running on hardware
+ // that doesn't support the core version of these APIs, the runtime
+ // will take care of looking up the extension version of these entry
+ // points.
+ Set/*<String>*/ extensionNames = glInfo.getExtensions();
+ for (Iterator iter1 = extensionNames.iterator(); iter1.hasNext(); ) {
+ String extension = (String) iter1.next();
+ Set/*<String>*/ declarations = glInfo.getDeclarations(extension);
+ boolean isExtension = true;
+ boolean shouldUnify = true;
+ String cause = null;
+ for (Iterator iter2 = declarations.iterator(); iter2.hasNext(); ) {
+ String decl = (String) iter2.next();
+ boolean isFunc = !decl.startsWith("GL_");
+ if (!GLExtensionNames.isExtension(decl, isFunc)) {
+ isExtension = false;
+ break;
+ }
+ // See whether we're emitting glue code for this
+ // entry point or definition at all
+ if (isFunc) {
+ if (!functionMap.containsKey(decl)) {
+ isExtension = false;
+ break;
+ }
+ } else {
+ if (!constantMap.containsKey(decl)) {
+ isExtension = false;
+ break;
+ }
+ }
+ cause = decl;
+ String unifiedName = GLExtensionNames.normalize(decl, isFunc);
+ // NOTE that we look up the unified name in the
+ // BuildStaticGLInfo's notion of the APIs -- since
+ // we might not be emitting glue code for the
+ // headers that actually contain the core entry
+ // point. Think of the case where we are parsing the
+ // GLES2 gl2.h, which contains certain desktop
+ // OpenGL extensions that have been moved into the
+ // core, but later generating the implementing glue
+ // code (not the interface) for the desktop gl.h /
+ // glext.h.
+ shouldUnify = (glInfo.getExtension(unifiedName) != null);
+ // if (isFunc) {
+ // shouldUnify = functionMap.containsKey(unifiedName);
+ // } else {
+ // shouldUnify = constantMap.containsKey(unifiedName);
+ // }
+ if (!shouldUnify) {
+ break;
+ }
+ }
+ if (isExtension) {
+ if (shouldUnify) {
+ for (Iterator iter2 = declarations.iterator(); iter2.hasNext(); ) {
+ String decl = (String) iter2.next();
+ boolean isFunc = !decl.startsWith("GL_");
+ if (isFunc) {
+ functionMap.remove(decl);
+ } else {
+ constantMap.remove(decl);
+ }
+ }
+ System.err.println("INFO: unified extension " + extension + " into core API");
+ } else {
+ System.err.println("INFO: didn't unify extension " + extension + " into core API because of " + cause);
+ }
+ }
+ }
+ constants = new ArrayList();
+ for (Iterator iter = constantMap.keySet().iterator(); iter.hasNext(); ) {
+ constants.add(constantMap.get(iter.next()));
+ }
+ functions = new ArrayList();
+ for (Iterator iter = functionMap.keySet().iterator(); iter.hasNext(); ) {
+ functions.add(functionMap.get(iter.next()));
+ }
+ }
+ }
+
+ private void unifyExtensions(GlueEmitterControls controls) {
+ controls.runSymbolFilter(new ExtensionUnifier());
+ }
+
+ protected JavaConfiguration createConfig() {
+ return new GLConfiguration(this);
+ }
+
+ /** In order to implement Buffer Object variants of certain
+ functions we generate another MethodBinding which maps the void*
+ argument to a Java long. The generation of emitters then takes
+ place as usual. We do however need to keep track of the modified
+ MethodBinding object so that we can also modify the emitters
+ later to inform them that their argument has changed. We might
+ want to push this functionality down into the MethodBinding
+ (i.e., mutators for argument names). We also would need to
+ inform the CMethodBindingEmitter that it is overloaded in this
+ case (though we default to true currently). */
+ protected List/*<MethodBinding>*/ expandMethodBinding(MethodBinding binding) {
+ List/*<MethodBinding>*/ bindings = super.expandMethodBinding(binding);
+
+ if (!getGLConfig().isBufferObjectFunction(binding.getName())) {
+ return bindings;
+ }
+
+ List/*<MethodBinding>*/ newBindings = new ArrayList();
+ newBindings.addAll(bindings);
+
+ // Need to expand each one of the generated bindings to take a
+ // Java long instead of a Buffer for each void* argument
+ for (Iterator iter = bindings.iterator(); iter.hasNext(); ) {
+ MethodBinding cur = (MethodBinding) iter.next();
+
+ // Some of these routines (glBitmap) take strongly-typed
+ // primitive pointers as arguments which are expanded into
+ // non-void* arguments
+ // This test (rather than !signatureUsesNIO) is used to catch
+ // more unexpected situations
+ if (cur.signatureUsesJavaPrimitiveArrays()) {
+ continue;
+ }
+
+ MethodBinding result = cur;
+ for (int i = 0; i < cur.getNumArguments(); i++) {
+ if (cur.getJavaArgumentType(i).isNIOBuffer()) {
+ result = result.replaceJavaArgumentType(i, JavaType.createForClass(Long.TYPE));
+ }
+ }
+
+ if (result == cur) {
+ throw new RuntimeException("Error: didn't find any void* arguments for BufferObject function " +
+ binding.getName());
+ }
+
+ newBindings.add(result);
+ // Now need to flag this MethodBinding so that we generate the
+ // correct flags in the emitters later
+ bufferObjectMethodBindings.put(result, result);
+ }
+
+ return newBindings;
+ }
+
+ protected boolean needsModifiedEmitters(FunctionSymbol sym) {
+ if ((!needsProcAddressWrapper(sym) && !needsBufferObjectVariant(sym)) ||
+ getConfig().isUnimplemented(sym.getName())) {
+ return false;
+ }
+
+ return true;
+ }
+
+ public boolean isBufferObjectMethodBinding(MethodBinding binding) {
+ return bufferObjectMethodBindings.containsKey(binding);
+ }
+
+ //----------------------------------------------------------------------
+ // Internals only below this point
+ //
+
+ protected void generateModifiedEmitters(JavaMethodBindingEmitter baseJavaEmitter, List emitters) {
+ List superEmitters = new ArrayList();
+ super.generateModifiedEmitters(baseJavaEmitter, superEmitters);
+
+ // See whether this is one of the Buffer Object variants
+ boolean bufferObjectVariant = bufferObjectMethodBindings.containsKey(baseJavaEmitter.getBinding());
+
+ for (Iterator iter = superEmitters.iterator(); iter.hasNext(); ) {
+ JavaMethodBindingEmitter emitter = (JavaMethodBindingEmitter) iter.next();
+ if (emitter instanceof ProcAddressJavaMethodBindingEmitter) {
+ emitters.add(new GLJavaMethodBindingEmitter((ProcAddressJavaMethodBindingEmitter) emitter, this, bufferObjectVariant));
+ } else {
+ emitters.add(emitter);
+ }
+ }
+ }
+
+ protected boolean needsBufferObjectVariant(FunctionSymbol sym) {
+ return getGLConfig().isBufferObjectFunction(sym.getName());
+ }
+
+ protected GLConfiguration getGLConfig() {
+ return (GLConfiguration) getConfig();
+ }
+
+ protected void endProcAddressTable() throws Exception
+ {
+ PrintWriter w = tableWriter;
+
+ w.println(" /**");
+ w.println(" * This is a convenience method to get (by name) the native function");
+ w.println(" * pointer for a given function. It lets you avoid having to");
+ w.println(" * manually compute the &quot;" + PROCADDRESS_VAR_PREFIX + " + ");
+ w.println(" * &lt;functionName&gt;&quot; member variable name and look it up via");
+ w.println(" * reflection; it also will throw an exception if you try to get the");
+ w.println(" * address of an unknown function, or one that is statically linked");
+ w.println(" * and therefore does not have a function pointer in this table.");
+ w.println(" *");
+ w.println(" * @throws RuntimeException if the function pointer was not found in");
+ w.println(" * this table, either because the function was unknown or because");
+ w.println(" * it was statically linked.");
+ w.println(" */");
+ w.println(" public long getAddressFor(String functionNameUsr) {");
+ w.println(" String functionNameBase = com.sun.gluegen.runtime.opengl.GLExtensionNames.normalizeVEN(com.sun.gluegen.runtime.opengl.GLExtensionNames.normalizeARB(functionNameUsr, true), true);");
+ w.println(" String addressFieldNameBase = " + getProcAddressConfig().gluegenRuntimePackage() + ".ProcAddressHelper.PROCADDRESS_VAR_PREFIX + functionNameBase;");
+ w.println(" java.lang.reflect.Field addressField = null;");
+ w.println(" int funcNamePermNum = com.sun.gluegen.runtime.opengl.GLExtensionNames.getFuncNamePermutationNumber(functionNameBase);");
+ w.println(" for(int i = 0; null==addressField && i < funcNamePermNum; i++) {");
+ w.println(" String addressFieldName = com.sun.gluegen.runtime.opengl.GLExtensionNames.getFuncNamePermutation(addressFieldNameBase, i);");
+ w.println(" try {");
+ w.println(" addressField = getClass().getField(addressFieldName);");
+ w.println(" } catch (Exception e) { }");
+ w.println(" }");
+ w.println("");
+ w.println(" if(null==addressField) {");
+ w.println(" // The user is calling a bogus function or one which is not");
+ w.println(" // runtime linked");
+ w.println(" throw new RuntimeException(");
+ w.println(" \"WARNING: Address field query failed for \\\"\" + functionNameBase + \"\\\"/\\\"\" + functionNameUsr +");
+ w.println(" \"\\\"; it's either statically linked or address field is not a known \" +");
+ w.println(" \"function\");");
+ w.println(" } ");
+ w.println(" try {");
+ w.println(" return addressField.getLong(this);");
+ w.println(" } catch (Exception e) {");
+ w.println(" throw new RuntimeException(");
+ w.println(" \"WARNING: Address query failed for \\\"\" + functionNameBase + \"\\\"/\\\"\" + functionNameUsr +");
+ w.println(" \"\\\"; it's either statically linked or is not a known \" +");
+ w.println(" \"function\", e);");
+ w.println(" }");
+ w.println(" }");
+
+ w.println("} // end of class " + tableClassName);
+ w.flush();
+ w.close();
+ }
+
+ protected void emitProcAddressTableEntryForSymbol(FunctionSymbol cFunc)
+ {
+ emitProcAddressTableEntryForString(cFunc.getName());
+ }
+
+ protected void emitProcAddressTableEntryForString(String str)
+ {
+ // Deal gracefully with forced proc address generation in the face
+ // of having the function pointer typedef in the header file too
+ if (emittedTableEntries.contains(str))
+ return;
+ emittedTableEntries.add(str);
+ tableWriter.print(" public long ");
+ tableWriter.print(PROCADDRESS_VAR_PREFIX);
+ tableWriter.print(str);
+ tableWriter.println(";");
+ }
+
+}
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