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authorSven Gothel <[email protected]>2010-11-06 23:13:39 +0100
committerSven Gothel <[email protected]>2010-11-06 23:13:39 +0100
commit6f2d046c8d532db94f6af5003e341104d5bf4aff (patch)
tree723c31b8f9c1097ae48486acbf68e4e06fab2517 /src/java/com/jogamp/gluegen/procaddress/ProcAddressCMethodBindingEmitter.java
parentec6d61f4597af32c22319c4bda3c9dd9ab80bf25 (diff)
Renamed com.sun.gluegen -> com.jogamp.gluegen
Diffstat (limited to 'src/java/com/jogamp/gluegen/procaddress/ProcAddressCMethodBindingEmitter.java')
-rwxr-xr-xsrc/java/com/jogamp/gluegen/procaddress/ProcAddressCMethodBindingEmitter.java212
1 files changed, 212 insertions, 0 deletions
diff --git a/src/java/com/jogamp/gluegen/procaddress/ProcAddressCMethodBindingEmitter.java b/src/java/com/jogamp/gluegen/procaddress/ProcAddressCMethodBindingEmitter.java
new file mode 100755
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+++ b/src/java/com/jogamp/gluegen/procaddress/ProcAddressCMethodBindingEmitter.java
@@ -0,0 +1,212 @@
+/*
+ * 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.jogamp.gluegen.procaddress;
+
+import com.jogamp.gluegen.CMethodBindingEmitter;
+import com.jogamp.gluegen.MethodBinding;
+import com.jogamp.gluegen.JavaType;
+import java.io.*;
+import com.jogamp.gluegen.*;
+import com.jogamp.gluegen.cgram.types.*;
+
+public class ProcAddressCMethodBindingEmitter extends CMethodBindingEmitter {
+
+ private boolean callThroughProcAddress;
+ private boolean needsLocalTypedef;
+
+ private String localTypedefCallingConvention;
+
+ private static final String procAddressJavaTypeName = JavaType.createForClass(Long.TYPE).jniTypeName();
+ private ProcAddressEmitter emitter;
+
+ public ProcAddressCMethodBindingEmitter(CMethodBindingEmitter methodToWrap, final boolean callThroughProcAddress,
+ boolean needsLocalTypedef, String localTypedefCallingConvention, ProcAddressEmitter emitter) {
+
+ super(
+ new MethodBinding(methodToWrap.getBinding()) {
+ @Override
+ public String getName() {
+ if (callThroughProcAddress) {
+ return ProcAddressEmitter.WRAP_PREFIX + super.getName();
+ } else {
+ return super.getName();
+ }
+ }
+ },
+ methodToWrap.getDefaultOutput(),
+ methodToWrap.getJavaPackageName(),
+ methodToWrap.getJavaClassName(),
+ methodToWrap.getIsOverloadedBinding(),
+ methodToWrap.getIsJavaMethodStatic(),
+ true,
+ methodToWrap.forIndirectBufferAndArrayImplementation(),
+ methodToWrap.getMachineDescription()
+ );
+
+ if (methodToWrap.getReturnValueCapacityExpression() != null) {
+ setReturnValueCapacityExpression(methodToWrap.getReturnValueCapacityExpression());
+ }
+ if (methodToWrap.getReturnValueLengthExpression() != null) {
+ setReturnValueLengthExpression(methodToWrap.getReturnValueLengthExpression());
+ }
+ setTemporaryCVariableDeclarations(methodToWrap.getTemporaryCVariableDeclarations());
+ setTemporaryCVariableAssignments(methodToWrap.getTemporaryCVariableAssignments());
+
+ setCommentEmitter(defaultCommentEmitter);
+
+ this.callThroughProcAddress = callThroughProcAddress;
+ this.needsLocalTypedef = needsLocalTypedef;
+ this.localTypedefCallingConvention = localTypedefCallingConvention;
+ this.emitter = emitter;
+ }
+
+ @Override
+ protected int emitArguments(PrintWriter writer) {
+ int numEmitted = super.emitArguments(writer);
+ if (callThroughProcAddress) {
+ if (numEmitted > 0) {
+ writer.print(", ");
+ }
+ writer.print(procAddressJavaTypeName);
+ writer.print(" procAddress");
+ ++numEmitted;
+ }
+
+ return numEmitted;
+ }
+
+ @Override
+ protected void emitBodyVariableDeclarations(PrintWriter writer) {
+ if (callThroughProcAddress) {
+ // create variable for the function pointer with the right type, and set
+ // it to the value of the passed-in proc address
+ FunctionSymbol cSym = getBinding().getCSymbol();
+ String funcPointerTypedefName =
+ emitter.getFunctionPointerTypedefName(cSym);
+
+ if (needsLocalTypedef) {
+ // We (probably) didn't get a typedef for this function
+ // pointer type in the header file; the user requested that we
+ // forcibly generate one. Here we force the emission of one.
+ PointerType funcPtrType = new PointerType(null, cSym.getType(), 0);
+ // Just for safety, emit this name slightly differently than
+ // the mangling would otherwise produce
+ funcPointerTypedefName = "_local_" + funcPointerTypedefName;
+
+ writer.print(" typedef ");
+ writer.print(funcPtrType.toString(funcPointerTypedefName, localTypedefCallingConvention));
+ writer.println(";");
+ }
+
+ writer.print(" ");
+ writer.print(funcPointerTypedefName);
+ writer.print(" ptr_");
+ writer.print(cSym.getName());
+ writer.println(";");
+ }
+
+ super.emitBodyVariableDeclarations(writer);
+ }
+
+ @Override
+ protected void emitBodyVariablePreCallSetup(PrintWriter writer) {
+ super.emitBodyVariablePreCallSetup(writer);
+
+ if (callThroughProcAddress) {
+ // set the function pointer to the value of the passed-in procAddress
+ FunctionSymbol cSym = getBinding().getCSymbol();
+ String funcPointerTypedefName = emitter.getFunctionPointerTypedefName(cSym);
+ if (needsLocalTypedef) {
+ funcPointerTypedefName = "_local_" + funcPointerTypedefName;
+ }
+
+ String ptrVarName = "ptr_" + cSym.getName();
+
+ writer.print(" ");
+ writer.print(ptrVarName);
+ writer.print(" = (");
+ writer.print(funcPointerTypedefName);
+ writer.println(") (intptr_t) procAddress;");
+
+ writer.println(" assert(" + ptrVarName + " != NULL);");
+ }
+ }
+
+ @Override
+ protected void emitBodyCallCFunction(PrintWriter writer) {
+ if (!callThroughProcAddress) {
+ super.emitBodyCallCFunction(writer);
+ } else {
+ // Make the call to the actual C function
+ writer.print(" ");
+
+ // WARNING: this code assumes that the return type has already been
+ // typedef-resolved.
+ Type cReturnType = binding.getCReturnType();
+
+ if (!cReturnType.isVoid()) {
+ writer.print("_res = ");
+ }
+ MethodBinding mBinding = getBinding();
+ if (mBinding.hasContainingType()) {
+ // FIXME: this can and should be handled and unified with the
+ // associated code in the CMethodBindingEmitter
+ throw new IllegalStateException("Cannot call through function pointer because binding has containing type: " + mBinding);
+ }
+
+ // call throught the run-time function pointer
+ writer.print("(* ptr_");
+ writer.print(mBinding.getCSymbol().getName());
+ writer.print(") ");
+ writer.print("(");
+ emitBodyPassCArguments(writer);
+ writer.println(");");
+ }
+ }
+
+ @Override
+ protected String jniMangle(MethodBinding binding) {
+ StringBuffer buf = new StringBuffer(super.jniMangle(binding));
+ if (callThroughProcAddress) {
+ jniMangle(Long.TYPE, buf, false); // to account for the additional _addr_ parameter
+ }
+ return buf.toString();
+ }
+}