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authorKenneth Russel <[email protected]>2006-03-06 01:18:05 +0000
committerKenneth Russel <[email protected]>2006-03-06 01:18:05 +0000
commit6502e754c6f4c12148433d2376cc241c374d9fc7 (patch)
tree87ea2b1978e1d0ade92d26e5caf0d9d0222855ef /src/java/com/sun/gluegen/nativesig/NativeSignatureEmitter.java
parent7669b88d5ea5d46e0d83632fb2afdcc75f4f5abc (diff)
Added NativeSignatureEmitter
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/gluegen/trunk@22 a78bb65f-1512-4460-ba86-f6dc96a7bf27
Diffstat (limited to 'src/java/com/sun/gluegen/nativesig/NativeSignatureEmitter.java')
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1 files changed, 188 insertions, 0 deletions
diff --git a/src/java/com/sun/gluegen/nativesig/NativeSignatureEmitter.java b/src/java/com/sun/gluegen/nativesig/NativeSignatureEmitter.java
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+++ b/src/java/com/sun/gluegen/nativesig/NativeSignatureEmitter.java
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+/*
+ * Copyright (c) 2006 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.nativesig;
+
+import java.io.*;
+import java.util.*;
+
+import com.sun.gluegen.*;
+import com.sun.gluegen.cgram.types.*;
+import com.sun.gluegen.opengl.*;
+import com.sun.gluegen.procaddress.*;
+
+/** Emitter producing NativeSignature attributes. */
+
+public class NativeSignatureEmitter extends GLEmitter {
+ protected List generateMethodBindingEmitters(FunctionSymbol sym) throws Exception {
+ // Allow superclass to do most of the work for us
+ List res = super.generateMethodBindingEmitters(sym);
+
+ // Filter out all non-JavaMethodBindingEmitters
+ for (Iterator iter = res.iterator(); iter.hasNext(); ) {
+ FunctionEmitter emitter = (FunctionEmitter) iter.next();
+ if (!(emitter instanceof JavaMethodBindingEmitter)) {
+ iter.remove();
+ }
+ }
+
+ if (res.isEmpty()) {
+ return res;
+ }
+
+ PrintWriter writer = (getConfig().allStatic() ? javaWriter() : javaImplWriter());
+
+ List processed = new ArrayList();
+
+ // First, filter out all emitters going to the "other" (public) writer
+ for (Iterator iter = res.iterator(); iter.hasNext(); ) {
+ FunctionEmitter emitter = (FunctionEmitter) iter.next();
+ if (emitter.getDefaultOutput() != writer) {
+ processed.add(emitter);
+ iter.remove();
+ }
+ }
+
+ // Now process all of the remaining emitters sorted by MethodBinding
+ while (!res.isEmpty()) {
+ List emittersForBinding = new ArrayList();
+ JavaMethodBindingEmitter emitter = (JavaMethodBindingEmitter) res.remove(0);
+ emittersForBinding.add(emitter);
+ MethodBinding binding = emitter.getBinding();
+ for (Iterator iter = res.iterator(); iter.hasNext(); ) {
+ JavaMethodBindingEmitter emitter2 = (JavaMethodBindingEmitter) iter.next();
+ if (emitter2.getBinding() == binding) {
+ emittersForBinding.add(emitter2);
+ iter.remove();
+ }
+ }
+ generateNativeSignatureEmitters(binding, emittersForBinding);
+ processed.addAll(emittersForBinding);
+ }
+
+ return processed;
+ }
+
+ protected void generateNativeSignatureEmitters(MethodBinding binding,
+ List allEmitters) {
+ if (allEmitters.isEmpty()) {
+ return;
+ }
+
+ PrintWriter writer = (getConfig().allStatic() ? javaWriter() : javaImplWriter());
+
+ // Give ourselves the chance to interpose on the generation of all code to keep things simple
+ List newEmitters = new ArrayList();
+ for (Iterator iter = allEmitters.iterator(); iter.hasNext(); ) {
+ JavaMethodBindingEmitter javaEmitter = (JavaMethodBindingEmitter) iter.next();
+ NativeSignatureJavaMethodBindingEmitter newEmitter = null;
+ if (javaEmitter instanceof GLJavaMethodBindingEmitter) {
+ newEmitter = new NativeSignatureJavaMethodBindingEmitter((GLJavaMethodBindingEmitter) javaEmitter);
+ } else if (javaEmitter instanceof ProcAddressJavaMethodBindingEmitter) {
+ newEmitter = new NativeSignatureJavaMethodBindingEmitter((ProcAddressJavaMethodBindingEmitter) javaEmitter);
+ } else {
+ newEmitter = new NativeSignatureJavaMethodBindingEmitter(javaEmitter, this);
+ }
+ newEmitters.add(newEmitter);
+ }
+ allEmitters.clear();
+ allEmitters.addAll(newEmitters);
+
+ // Detect whether we need to produce more or modify some of these emitters.
+ // Note that at this point we are assuming that generatePublicEmitters has
+ // been called with signatureOnly both true and false.
+ if (signatureContainsStrings(binding) &&
+ !haveEmitterWithBody(allEmitters)) {
+ // This basically handles glGetString but also any similar methods
+ NativeSignatureJavaMethodBindingEmitter javaEmitter = findEmitterWithWriter(allEmitters, writer);
+
+ // First, we need to clone this emitter to produce the native
+ // entry point
+ NativeSignatureJavaMethodBindingEmitter emitter =
+ new NativeSignatureJavaMethodBindingEmitter(javaEmitter);
+ emitter.removeModifier(JavaMethodBindingEmitter.PUBLIC);
+ emitter.addModifier(JavaMethodBindingEmitter.PRIVATE);
+ emitter.setForImplementingMethodCall(true);
+ // Note: this is chosen so we don't have to change the logic in
+ // emitReturnVariableSetupAndCall which decides which variant
+ // (direct / indirect) to call
+ emitter.setForDirectBufferImplementation(true);
+ allEmitters.add(emitter);
+
+ // Now make the original emitter non-native and cause it to emit a body
+ javaEmitter.removeModifier(JavaMethodBindingEmitter.NATIVE);
+ javaEmitter.setEmitBody(true);
+ }
+ }
+
+ protected boolean signatureContainsStrings(MethodBinding binding) {
+ for (int i = 0; i < binding.getNumArguments(); i++) {
+ JavaType type = binding.getJavaArgumentType(i);
+ if (type.isString() || type.isStringArray()) {
+ return true;
+ }
+ }
+ JavaType retType = binding.getJavaReturnType();
+ if (retType.isString() || retType.isStringArray()) {
+ return true;
+ }
+ return false;
+ }
+
+ protected boolean haveEmitterWithBody(List allEmitters) {
+ for (Iterator iter = allEmitters.iterator(); iter.hasNext(); ) {
+ JavaMethodBindingEmitter emitter = (JavaMethodBindingEmitter) iter.next();
+ if (!emitter.signatureOnly()) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ protected NativeSignatureJavaMethodBindingEmitter findEmitterWithWriter(List allEmitters, PrintWriter writer) {
+ for (Iterator iter = allEmitters.iterator(); iter.hasNext(); ) {
+ NativeSignatureJavaMethodBindingEmitter emitter =
+ (NativeSignatureJavaMethodBindingEmitter) iter.next();
+ if (emitter.getDefaultOutput() == writer) {
+ return emitter;
+ }
+ }
+ throw new RuntimeException("Unexpectedly failed to find an emitter with the given writer");
+ }
+}