diff options
author | Sven Gothel <[email protected]> | 2010-11-07 02:34:19 +0100 |
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committer | Sven Gothel <[email protected]> | 2010-11-07 02:34:19 +0100 |
commit | 55a60c28ca8f501aca0fff8c69b11564518f3a66 (patch) | |
tree | 47d753e313da1de7573eaf23cca4336b70fe195c /src/jogl/classes/com/jogamp/gluegen/opengl/GLEmitter.java | |
parent | 113319a8de0998fbd8d7357d4e0273f802f9453a (diff) |
Gluegen parts in src/gluegen (clean)
- Adding gluegen-gl.jar for GlueGen GL compile time parts.
- Removed dead build-gluegen.xml
- Adding com/jogamp/gluegen/runtime/opengl/* to jogl core
- Moved gluegen gl part to jogl/classes
Diffstat (limited to 'src/jogl/classes/com/jogamp/gluegen/opengl/GLEmitter.java')
-rw-r--r-- | src/jogl/classes/com/jogamp/gluegen/opengl/GLEmitter.java | 456 |
1 files changed, 456 insertions, 0 deletions
diff --git a/src/jogl/classes/com/jogamp/gluegen/opengl/GLEmitter.java b/src/jogl/classes/com/jogamp/gluegen/opengl/GLEmitter.java new file mode 100644 index 000000000..ad9e47011 --- /dev/null +++ b/src/jogl/classes/com/jogamp/gluegen/opengl/GLEmitter.java @@ -0,0 +1,456 @@ +/* + * Copyright (c) 2003-2005 Sun Microsystems, Inc. All Rights Reserved. + * Copyright (c) 2010 JogAmp Community. 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.opengl; + +import java.io.*; +import java.util.*; +import com.jogamp.gluegen.*; +import com.jogamp.gluegen.cgram.types.*; +import com.jogamp.gluegen.procaddress.*; +import com.jogamp.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, MethodBinding> bufferObjectMethodBindings = new IdentityHashMap<MethodBinding, MethodBinding>(); + + enum BufferObjectKind { UNPACK_PIXEL, PACK_PIXEL, ARRAY, ELEMENT} + + @Override + 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(); + Set<String> extensionsRenamedIntoCore = config.getExtensionsRenamedIntoCore(); + BuildStaticGLInfo glInfo = config.getGLInfo(); + if (null == glInfo) { + if (extensionsRenamedIntoCore.size() > 0) { + throw new RuntimeException("ExtensionRenamedIntoCore (num: " + extensionsRenamedIntoCore.size() + "), but no GLHeader"); + } + return; + } + for (String extension : extensionsRenamedIntoCore) { + Set<String> declarations = glInfo.getDeclarations(extension); + if (declarations != null) { + for (Iterator<String> iterator = declarations.iterator(); iterator.hasNext();) { + String decl = iterator.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<String, ConstantDefinition>(); + for (ConstantDefinition def : constants) { + constantMap.put(def.getName(), def); + } + Map<String, FunctionSymbol> functionMap = new LinkedHashMap<String, FunctionSymbol>(); + for (FunctionSymbol sym : functions) { + 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 (String extension : extensionNames) { + Set<String> declarations = glInfo.getDeclarations(extension); + boolean isExtension = true; + boolean shouldUnify = true; + String cause = null; + for (String decl : declarations) { + 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 (String decl : declarations) { + 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<ConstantDefinition>(constantMap.values()); + functions = new ArrayList<FunctionSymbol>(functionMap.values()); + } + } + + private void unifyExtensions(GlueEmitterControls controls) { + controls.runSymbolFilter(new ExtensionUnifier()); + } + + @Override + 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). */ + @Override + protected List<MethodBinding> expandMethodBinding(MethodBinding binding) { + List<MethodBinding> bindings = super.expandMethodBinding(binding); + + if (!getGLConfig().isBufferObjectFunction(binding.getName())) { + return bindings; + } + + List<MethodBinding> newBindings = new ArrayList<MethodBinding>(bindings); + + // Need to expand each one of the generated bindings to take a + // Java long instead of a Buffer for each void* argument + + for (MethodBinding cur : bindings) { + + // 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; + } + + @Override + 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); + } + + @Override + public void emitDefine(ConstantDefinition def, String optionalComment) throws Exception { + BuildStaticGLInfo glInfo = getGLConfig().getGLInfo(); + if (null == glInfo) { + throw new Exception("No GLInfo for: " + def); + } + String symbolRenamed = def.getName(); + StringBuilder newComment = new StringBuilder(); + newComment.append("Part of <code>"); + if (0 == addExtensionsOfSymbols2Buffer(newComment, ", ", symbolRenamed, def.getAliasedNames())) { + if (def.isEnum()) { + String enumName = def.getEnumName(); + if (null != enumName) { + newComment.append(enumName); + } else { + newComment.append("CORE ENUM"); + } + } else { + if (getGLConfig().getAllowNonGLExtensions()) { + newComment.append("CORE DEF"); + } else { + // Note: All GL defines must be contained within an extension marker ! + // #ifndef GL_EXT_lala + // #define GL_EXT_lala 1 + // ... + // #endif + if (JavaConfiguration.DEBUG_IGNORES) { + StringBuilder sb = new StringBuilder(); + JavaEmitter.addStrings2Buffer(sb, ", ", symbolRenamed, def.getAliasedNames()); + System.err.println("Dropping marker: " + sb.toString()); + } + return; + } + } + } + newComment.append("</code>"); + + if (null != optionalComment) { + newComment.append("<br>"); + newComment.append(optionalComment); + } + + super.emitDefine(def, newComment.toString()); + } + + public int addExtensionsOfSymbols2Buffer(StringBuilder buf, String sep, String first, Collection<String> col) { + BuildStaticGLInfo glInfo = getGLConfig().getGLInfo(); + if (null == glInfo) { + throw new RuntimeException("No GLInfo for: " + first); + } + int num = 0; + if (null == buf) { + buf = new StringBuilder(); + } + String extensionName; + + Iterator<String> iter = col.iterator(); + if (null != first) { + extensionName = glInfo.getExtension(first); + if (null != extensionName) { + buf.append(extensionName); + if (iter.hasNext()) { + buf.append(sep); + } + num++; + } + } + while (iter.hasNext()) { + extensionName = glInfo.getExtension(iter.next()); + if (null != extensionName) { + buf.append(extensionName); + if (iter.hasNext()) { + buf.append(sep); + } + num++; + } + } + return num; + } + + //---------------------------------------------------------------------- + // Internals only below this point + // + @Override + protected void generateModifiedEmitters(JavaMethodBindingEmitter baseJavaEmitter, List<FunctionEmitter> emitters) { + List<FunctionEmitter> superEmitters = new ArrayList<FunctionEmitter>(); + super.generateModifiedEmitters(baseJavaEmitter, superEmitters); + + // See whether this is one of the Buffer Object variants + boolean bufferObjectVariant = bufferObjectMethodBindings.containsKey(baseJavaEmitter.getBinding()); + + for (FunctionEmitter emitter : superEmitters) { + if (emitter instanceof ProcAddressJavaMethodBindingEmitter) { + emitter = new GLJavaMethodBindingEmitter((ProcAddressJavaMethodBindingEmitter) emitter, this, bufferObjectVariant); + } + emitters.add(emitter); + } + } + + protected boolean needsBufferObjectVariant(FunctionSymbol sym) { + return getGLConfig().isBufferObjectFunction(sym.getName()); + } + + protected GLConfiguration getGLConfig() { + return (GLConfiguration) getConfig(); + } + + @Override + 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 "" + PROCADDRESS_VAR_PREFIX + " + "); + w.println(" * <functionName>" 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 = "+GLExtensionNames.class.getName()+".normalizeVEN(com.jogamp.gluegen.runtime.opengl.GLExtensionNames.normalizeARB(functionNameUsr, true), true);"); + w.println(" String addressFieldNameBase = PROCADDRESS_VAR_PREFIX + functionNameBase;"); + w.println(" java.lang.reflect.Field addressField = null;"); + w.println(" int funcNamePermNum = "+GLExtensionNames.class.getName()+".getFuncNamePermutationNumber(functionNameBase);"); + w.println(" for(int i = 0; null==addressField && i < funcNamePermNum; i++) {"); + w.println(" String addressFieldName = "+GLExtensionNames.class.getName()+".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(); + } +} |