150 lines
6.3 KiB
Java
150 lines
6.3 KiB
Java
/*
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* Copyright (c) 2002-2008 LWJGL Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'LWJGL' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.lwjgl.util.generator;
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/**
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*
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* This class generates the initNatives native function.
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*
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* @author elias_naur <elias_naur@users.sourceforge.net>
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* @version $Revision$ $Id$
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*/
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import java.io.PrintWriter;
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import java.util.Arrays;
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import java.util.EnumSet;
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import java.util.Iterator;
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import java.util.List;
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import java.util.regex.Pattern;
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import javax.lang.model.element.ExecutableElement;
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import javax.lang.model.element.TypeElement;
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import javax.lang.model.element.VariableElement;
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import javax.lang.model.type.TypeMirror;
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public class RegisterStubsGenerator {
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public static void generateMethodsNativeStubBind(PrintWriter writer, TypeElement d, boolean generate_error_checks, boolean context_specific) {
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Iterator<? extends ExecutableElement> it = Utils.getMethods(d).iterator();
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while ( it.hasNext() ) {
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ExecutableElement method = it.next();
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Alternate alt_annotation = method.getAnnotation(Alternate.class);
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if ( (alt_annotation != null && (!alt_annotation.nativeAlt() || alt_annotation.skipNative())) || method.getAnnotation(Reuse.class) != null ) {
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continue;
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}
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EnumSet<Platform> platforms;
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PlatformDependent platform_annotation = method.getAnnotation(PlatformDependent.class);
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if ( platform_annotation != null ) {
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platforms = EnumSet.copyOf(Arrays.asList(platform_annotation.value()));
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} else {
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platforms = EnumSet.of(Platform.ALL);
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}
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for ( Platform platform : platforms ) {
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platform.printPrologue(writer);
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boolean has_buffer_parameter = Utils.hasMethodBufferObjectParameter(method);
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printMethodNativeStubBind(writer, d, method, platform, Mode.NORMAL, it.hasNext() || has_buffer_parameter, generate_error_checks, context_specific);
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if ( has_buffer_parameter ) {
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printMethodNativeStubBind(writer, d, method, platform, Mode.BUFFEROBJECT, it.hasNext(), generate_error_checks, context_specific);
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}
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platform.printEpilogue(writer);
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}
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}
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writer.println();
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}
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private static String getTypeSignature(TypeMirror type) {
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SignatureTranslator v = new SignatureTranslator();
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type.accept(v, null);
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return v.getSignature();
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}
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private static String getMethodSignature(ExecutableElement method, Mode mode) {
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List<? extends VariableElement> params = method.getParameters();
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String signature = "(";
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for ( VariableElement param : params ) {
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if ( param.getAnnotation(Result.class) != null || (param.getAnnotation(Helper.class) != null && !param.getAnnotation(Helper.class).passToNative()) ) {
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continue;
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}
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final Constant constant_annotation = param.getAnnotation(Constant.class);
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if ( constant_annotation != null && constant_annotation.isNative() ) {
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continue;
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}
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if ( mode == Mode.BUFFEROBJECT && param.getAnnotation(BufferObject.class) != null ) {
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signature += "J";
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} else {
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signature += getTypeSignature(param.asType());
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}
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}
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final TypeMirror result_type = Utils.getMethodReturnType(method);
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final CachedResult cached_result_annotation = method.getAnnotation(CachedResult.class);
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final AutoSize auto_size_annotation = method.getAnnotation(AutoSize.class);
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final boolean isNIOBuffer = Utils.getNIOBufferType(result_type) != null;
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if ( isNIOBuffer && (auto_size_annotation == null || !auto_size_annotation.isNative()) ) {
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signature += "J";
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}
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final String result_type_signature = isNIOBuffer ? "Ljava/nio/ByteBuffer;" : getTypeSignature(result_type);
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if ( cached_result_annotation != null ) {
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signature += result_type_signature;
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}
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signature += ")";
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signature += result_type_signature;
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return signature;
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}
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private static final Pattern GL_PATTERN = Pattern.compile("gl");
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private static void printMethodNativeStubBind(PrintWriter writer, TypeElement d, ExecutableElement method, Platform platform, Mode mode, boolean has_more, boolean generate_error_checks, boolean context_specific) {
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writer.print("\t\t{\"" + Utils.getSimpleNativeMethodName(method, generate_error_checks, context_specific));
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if ( mode == Mode.BUFFEROBJECT ) {
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writer.print(Utils.BUFFER_OBJECT_METHOD_POSTFIX);
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}
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writer.print("\", \"" + getMethodSignature(method, mode) + "\", (void *)&");
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writer.print(Utils.getQualifiedNativeMethodName(Utils.getQualifiedClassName(d), method, generate_error_checks, context_specific));
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if ( mode == Mode.BUFFEROBJECT ) {
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writer.print(Utils.BUFFER_OBJECT_METHOD_POSTFIX);
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}
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final Alternate alt_annotation = method.getAnnotation(Alternate.class);
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final String methodName = alt_annotation == null ? method.getSimpleName().toString() : alt_annotation.value();
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String opengl_handle_name = GL_PATTERN.matcher(methodName).replaceFirst(platform.getPrefix());
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writer.print(", \"" + opengl_handle_name + "\", (void *)&" + methodName + ", " + (method.getAnnotation(Optional.class) == null ? "false" : "true") + "}");
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if ( has_more ) {
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writer.println(",");
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}
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}
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}
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