Relocation: GlueGen GL Parts to Jogl

1 files changed, 190 insertions, 0 deletions

diff --git a/src/java/com/jogamp/gluegen/nativesig/NativeSignatureEmitter.java b/src/java/com/jogamp/gluegen/nativesig/NativeSignatureEmitter.java
new file mode 100755
index 000000000..bbc33d706
--- /dev/null
+++ b/src/java/com/jogamp/gluegen/nativesig/NativeSignatureEmitter.java
@@ -0,0 +1,190 @@
+/*
+ * 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.jogamp.gluegen.nativesig;
+
+import com.jogamp.gluegen.MethodBinding;
+import com.jogamp.gluegen.FunctionEmitter;
+import com.jogamp.gluegen.JavaMethodBindingEmitter;
+import com.jogamp.gluegen.JavaType;
+import java.io.*;
+import java.util.*;
+
+import com.jogamp.gluegen.*;
+import com.jogamp.gluegen.cgram.types.*;
+import com.jogamp.gluegen.opengl.*;
+import com.jogamp.gluegen.procaddress.*;
+
+/**
+ * Emitter producing NativeSignature attributes.
+ */
+public class NativeSignatureEmitter extends GLEmitter {
+
+    @Override
+    protected List<? extends FunctionEmitter> generateMethodBindingEmitters(Set<MethodBinding> methodBindingSet, FunctionSymbol sym) throws Exception {
+
+        // Allow superclass to do most of the work for us
+        List<? extends FunctionEmitter> res = super.generateMethodBindingEmitters(methodBindingSet, sym);
+
+        // Filter out all non-JavaMethodBindingEmitters
+        for (Iterator<? extends FunctionEmitter> iter = res.iterator(); iter.hasNext();) {
+            FunctionEmitter emitter = iter.next();
+            if (!(emitter instanceof JavaMethodBindingEmitter)) {
+                iter.remove();
+            }
+        }
+
+        if (res.isEmpty()) {
+            return res;
+        }
+
+        PrintWriter writer = (getConfig().allStatic() ? javaWriter() : javaImplWriter());
+
+        List<FunctionEmitter> processed = new ArrayList<FunctionEmitter>();
+
+        // First, filter out all emitters going to the "other" (public) writer
+        for (Iterator<? extends FunctionEmitter> iter = res.iterator(); iter.hasNext();) {
+            FunctionEmitter emitter = 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<JavaMethodBindingEmitter> emittersForBinding = new ArrayList<JavaMethodBindingEmitter>();
+            JavaMethodBindingEmitter emitter = (JavaMethodBindingEmitter) res.remove(0);
+            emittersForBinding.add(emitter);
+            MethodBinding binding = emitter.getBinding();
+            for (Iterator<? extends FunctionEmitter> 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<JavaMethodBindingEmitter> 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<JavaMethodBindingEmitter> newEmitters = new ArrayList<JavaMethodBindingEmitter>();
+        for (JavaMethodBindingEmitter javaEmitter : allEmitters) {
+            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<JavaMethodBindingEmitter> allEmitters) {
+        for (JavaMethodBindingEmitter emitter : allEmitters) {
+            if (!emitter.signatureOnly()) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    protected NativeSignatureJavaMethodBindingEmitter findEmitterWithWriter(List<JavaMethodBindingEmitter> allEmitters, PrintWriter writer) {
+        for (JavaMethodBindingEmitter jemitter : allEmitters) {
+            NativeSignatureJavaMethodBindingEmitter emitter = (NativeSignatureJavaMethodBindingEmitter)jemitter;
+            if (emitter.getDefaultOutput() == writer) {
+                return emitter;
+            }
+        }
+        throw new RuntimeException("Unexpectedly failed to find an emitter with the given writer");
+    }
+}