216 lines
9.1 KiB
Java
216 lines
9.1 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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import java.io.PrintWriter;
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import java.util.Arrays;
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import java.util.Collection;
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import java.util.EnumSet;
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import java.util.Iterator;
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import com.sun.mirror.declaration.InterfaceDeclaration;
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import com.sun.mirror.declaration.MethodDeclaration;
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import com.sun.mirror.type.InterfaceType;
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/**
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*
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* Generator visitor for the context capabilities generator tool
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*
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* @author elias_naur <elias_naur@users.sourceforge.net>
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* @version $Revision$
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* $Id$
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*/
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public class ContextCapabilitiesGenerator {
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private final static String STUBS_LOADED_NAME = "loaded_stubs";
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private final static String ALL_INIT_METHOD_NAME = "initAllStubs";
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private final static String POINTER_INITIALIZER_POSTFIX = "_initNativeFunctionAddresses";
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private final static String CACHED_EXTS_VAR_NAME = "supported_extensions";
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private final static String EXTENSION_PREFIX = "GL_";
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private final static String CORE_PREFIX = "Open";
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public static void generateClassPrologue(PrintWriter writer, boolean context_specific) {
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writer.println("public class " + Utils.CONTEXT_CAPS_CLASS_NAME + " {");
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writer.println("\tfinal StateTracker tracker;");
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writer.println("\tfinal IntBuffer scratch_int_buffer = BufferUtils.createIntBuffer(16);");
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writer.println();
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if (!context_specific) {
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writer.println("\tprivate static boolean " + STUBS_LOADED_NAME + " = false;");
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}
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}
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public static void generateInitializerPrologue(PrintWriter writer) {
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writer.println("\t" + Utils.CONTEXT_CAPS_CLASS_NAME + "() throws LWJGLException {");
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writer.println("\t\tSet " + CACHED_EXTS_VAR_NAME + " = " + ALL_INIT_METHOD_NAME + "();");
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}
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private static String translateFieldName(String interface_name) {
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if (interface_name.startsWith("GL"))
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return CORE_PREFIX + interface_name;
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else
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return EXTENSION_PREFIX + interface_name;
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}
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public static void generateSuperClassAdds(PrintWriter writer, InterfaceDeclaration d) {
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Collection<InterfaceType> super_interfaces = d.getSuperinterfaces();
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if (super_interfaces.size() > 1)
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throw new RuntimeException(d + " extends more than one other interface");
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if (super_interfaces.size() == 1) {
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InterfaceType super_interface = super_interfaces.iterator().next();
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writer.print("\t\tif (" + CACHED_EXTS_VAR_NAME + ".contains(\"");
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writer.println(translateFieldName(d.getSimpleName()) + "\"))");
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writer.print("\t\t\t");
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generateAddExtension(writer, super_interface.getDeclaration());
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}
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}
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public static void generateInitializer(PrintWriter writer, InterfaceDeclaration d) {
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String translated_field_name = translateFieldName(d.getSimpleName());
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writer.print("\t\tthis." + translated_field_name + " = ");
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writer.print(CACHED_EXTS_VAR_NAME + ".contains(\"");
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writer.print(translated_field_name + "\")");
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Collection<InterfaceType> super_interfaces = d.getSuperinterfaces();
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if (super_interfaces.size() > 1)
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throw new RuntimeException(d + " extends more than one other interface");
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if (super_interfaces.size() == 1) {
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InterfaceType super_interface = super_interfaces.iterator().next();
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writer.println();
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writer.print("\t\t\t&& " + CACHED_EXTS_VAR_NAME + ".contains(\"");
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writer.print(translateFieldName(super_interface.getDeclaration().getSimpleName()) + "\")");
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}
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writer.println(";");
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}
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private static String getAddressesInitializerName(String class_name) {
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return class_name + POINTER_INITIALIZER_POSTFIX;
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}
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public static void generateInitStubsPrologue(PrintWriter writer, boolean context_specific) {
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writer.println("\tprivate Set " + ALL_INIT_METHOD_NAME + "() throws LWJGLException {");
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if (!context_specific) {
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writer.println("\t\tif (" + STUBS_LOADED_NAME + ")");
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writer.println("\t\t\treturn GLContext.getSupportedExtensions();");
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writer.println("\t\torg.lwjgl.opengl.GL11." + Utils.STUB_INITIALIZER_NAME + "();");
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} else {
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writer.println("\t\tif (!" + getAddressesInitializerName("GL11") + "())");
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writer.println("\t\t\tthrow new LWJGLException(\"GL11 not supported\");");
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}
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writer.println("\t\tGLContext.setCapabilities(this);");
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writer.println("\t\tSet " + CACHED_EXTS_VAR_NAME + " = GLContext.getSupportedExtensions();");
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}
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public static void generateInitStubsEpilogue(PrintWriter writer, boolean context_specific) {
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if (!context_specific) {
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writer.println("\t\t" + STUBS_LOADED_NAME + " = true;");
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}
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writer.println("\t\treturn " + CACHED_EXTS_VAR_NAME + ";");
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writer.println("\t}");
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}
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public static void generateUnloadStubs(PrintWriter writer, InterfaceDeclaration d) {
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if (d.getMethods().size() > 0) {
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writer.print("\t\tGLContext.resetNativeStubs(" + Utils.getSimpleClassName(d));
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writer.println(".class);");
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}
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}
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public static void generateInitStubs(PrintWriter writer, InterfaceDeclaration d, boolean context_specific) {
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if (d.getMethods().size() > 0) {
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if (context_specific) {
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writer.print("\t\tif (" + CACHED_EXTS_VAR_NAME + ".contains(\"");
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writer.print(translateFieldName(d.getSimpleName()) + "\")");
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writer.println(" && !" + getAddressesInitializerName(d.getSimpleName()) + "())");
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writer.print("\t\t\t" + CACHED_EXTS_VAR_NAME + ".remove(\"");
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writer.println(translateFieldName(d.getSimpleName()) + "\");");
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} else {
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writer.print("\t\tGLContext." + Utils.STUB_INITIALIZER_NAME + "(" + Utils.getSimpleClassName(d));
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writer.println(".class, " + CACHED_EXTS_VAR_NAME + ", \"" + translateFieldName(d.getSimpleName()) + "\");");
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}
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}
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}
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private static void generateAddExtension(PrintWriter writer, InterfaceDeclaration d) {
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writer.print(CACHED_EXTS_VAR_NAME + ".add(\"");
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writer.println(translateFieldName(d.getSimpleName()) + "\");");
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}
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public static void generateAddressesInitializers(PrintWriter writer, InterfaceDeclaration d) {
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Iterator<? extends MethodDeclaration> methods = d.getMethods().iterator();
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if (methods.hasNext()) {
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writer.println("\tprivate boolean " + getAddressesInitializerName(d.getSimpleName()) + "() {");
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writer.println("\t\treturn ");
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while (methods.hasNext()) {
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MethodDeclaration method = methods.next();
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writer.print("\t\t\t(" + Utils.getFunctionAddressName(d, method) + " = ");
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PlatformDependent platform_dependent = method.getAnnotation(PlatformDependent.class);
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if (platform_dependent != null) {
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EnumSet<Platform> platform_set = EnumSet.copyOf(Arrays.asList(platform_dependent.value()));
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writer.print("GLContext.getPlatformSpecificFunctionAddress(\"");
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writer.print(Platform.ALL.getPrefix() + "\", ");
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writer.print("new String[]{");
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Iterator<Platform> platforms = platform_set.iterator();
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while (platforms.hasNext()) {
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writer.print("\"" + platforms.next().getOSPrefix() + "\"");
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if(platforms.hasNext())
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writer.print(", ");
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}
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writer.print("}, new String[]{");
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platforms = platform_set.iterator();
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while (platforms.hasNext()) {
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writer.print("\"" + platforms.next().getPrefix() + "\"");
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if(platforms.hasNext())
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writer.print(", ");
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}
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writer.print("}, ");
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} else
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writer.print("GLContext.getFunctionAddress(");
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writer.print("\"" + method.getSimpleName() + "\")) != 0");
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if (methods.hasNext())
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writer.println(" &&");
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}
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writer.println(";");
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writer.println("\t}");
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writer.println();
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}
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}
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public static void generateSymbolAddresses(PrintWriter writer, InterfaceDeclaration d) {
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for (MethodDeclaration method : d.getMethods()) {
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writer.println("\tlong " + Utils.getFunctionAddressName(d, method) + ";");
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}
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}
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public static void generateField(PrintWriter writer, InterfaceDeclaration d) {
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writer.println("\tpublic final boolean " + translateFieldName(d.getSimpleName()) + ";");
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}
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}
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