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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.util.*;
import com.sun.gluegen.*;
import com.sun.gluegen.procaddress.*;
public class GLConfiguration extends ProcAddressConfiguration {
// The following data members support ignoring an entire extension at a time
private List/*<String>*/ glHeaders = new ArrayList();
private Set/*<String>*/ ignoredExtensions = new HashSet();
private BuildStaticGLInfo glInfo;
// Maps function names to the kind of buffer object it deals with
private Map/*<String,GLEmitter.BufferObjectKind>*/ bufferObjectKinds = new HashMap();
private GLEmitter emitter;
public GLConfiguration(GLEmitter emitter) {
super();
this.emitter = emitter;
try {
setProcAddressNameExpr("PFN $UPPERCASE({0}) PROC");
} catch (NoSuchElementException e) {
throw new RuntimeException("Error configuring ProcAddressNameExpr", e);
}
}
protected void dispatch(String cmd, StringTokenizer tok, File file, String filename, int lineNo) throws IOException {
if (cmd.equalsIgnoreCase("IgnoreExtension"))
{
String sym = readString("IgnoreExtension", tok, filename, lineNo);
ignoredExtensions.add(sym);
}
else if (cmd.equalsIgnoreCase("GLHeader"))
{
String sym = readString("GLHeader", tok, filename, lineNo);
glHeaders.add(sym);
}
else if (cmd.equalsIgnoreCase("BufferObjectKind"))
{
readBufferObjectKind(tok, filename, lineNo);
}
else
{
super.dispatch(cmd,tok,file,filename,lineNo);
}
}
protected void readBufferObjectKind(StringTokenizer tok, String filename, int lineNo) {
try {
String kindString = tok.nextToken();
GLEmitter.BufferObjectKind kind = null;
String target = tok.nextToken();
if (kindString.equalsIgnoreCase("UnpackPixel")) {
kind = GLEmitter.BufferObjectKind.UNPACK_PIXEL;
} else if (kindString.equalsIgnoreCase("PackPixel")) {
kind = GLEmitter.BufferObjectKind.PACK_PIXEL;
} else if (kindString.equalsIgnoreCase("Array")) {
kind = GLEmitter.BufferObjectKind.ARRAY;
} else if (kindString.equalsIgnoreCase("Element")) {
kind = GLEmitter.BufferObjectKind.ELEMENT;
} else {
throw new RuntimeException("Error parsing \"BufferObjectKind\" command at line " + lineNo +
" in file \"" + filename + "\": illegal BufferObjectKind \"" +
kindString + "\", expected one of UnpackPixel, PackPixel, Array, or Element");
}
bufferObjectKinds.put(target, kind);
} catch (NoSuchElementException e) {
throw new RuntimeException("Error parsing \"BufferObjectKind\" command at line " + lineNo +
" in file \"" + filename + "\"", e);
}
}
/** Overrides javaPrologueForMethod in superclass and
automatically generates prologue code for functions associated
with buffer objects. */
public List/*<String>*/ javaPrologueForMethod(MethodBinding binding,
boolean forImplementingMethodCall,
boolean eraseBufferAndArrayTypes) {
List/*<String>*/ res = super.javaPrologueForMethod(binding,
forImplementingMethodCall,
eraseBufferAndArrayTypes);
GLEmitter.BufferObjectKind kind = getBufferObjectKind(binding.getName());
if (kind != null) {
// Need to generate appropriate prologue based on both buffer
// object kind and whether this variant of the MethodBinding
// is the one accepting a "long" as argument
if (res == null) {
res = new ArrayList();
}
String prologue = "check";
if (kind == GLEmitter.BufferObjectKind.UNPACK_PIXEL) {
prologue = prologue + "UnpackPBO";
} else if (kind == GLEmitter.BufferObjectKind.PACK_PIXEL) {
prologue = prologue + "PackPBO";
} else if (kind == GLEmitter.BufferObjectKind.ARRAY) {
prologue = prologue + "ArrayVBO";
} else if (kind == GLEmitter.BufferObjectKind.ELEMENT) {
prologue = prologue + "ElementVBO";
} else {
throw new RuntimeException("Unknown BufferObjectKind " + kind);
}
if (emitter.isBufferObjectMethodBinding(binding)) {
prologue = prologue + "Enabled";
} else {
prologue = prologue + "Disabled";
}
prologue = prologue + "();";
res.add(0, prologue);
}
return res;
}
public boolean shouldIgnore(String symbol) {
// Check ignored extensions based on our knowledge of the static GL info
if (glInfo != null) {
String extension = glInfo.getExtension(symbol);
if (extension != null &&
ignoredExtensions.contains(extension)) {
return true;
}
}
return super.shouldIgnore(symbol);
}
/** Returns the kind of buffer object this function deals with, or
null if none. */
public GLEmitter.BufferObjectKind getBufferObjectKind(String name) {
return (GLEmitter.BufferObjectKind) bufferObjectKinds.get(name);
}
public boolean isBufferObjectFunction(String name) {
return (getBufferObjectKind(name) != null);
}
/** Parses any GL headers specified in the configuration file for
the purpose of being able to ignore an extension at a time. */
public void parseGLHeaders(GlueEmitterControls controls) throws IOException {
if (!glHeaders.isEmpty()) {
glInfo = new BuildStaticGLInfo();
for (Iterator iter = glHeaders.iterator(); iter.hasNext(); ) {
String file = (String) iter.next();
String fullPath = controls.findHeaderFile(file);
if (fullPath == null) {
throw new IOException("Unable to locate header file \"" + file + "\"");
}
glInfo.parse(fullPath);
}
}
}
}
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