diff options
Diffstat (limited to 'src/java/com/jogamp/openal/impl/ALProcAddressLookup.java')
-rwxr-xr-x | src/java/com/jogamp/openal/impl/ALProcAddressLookup.java | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/src/java/com/jogamp/openal/impl/ALProcAddressLookup.java b/src/java/com/jogamp/openal/impl/ALProcAddressLookup.java deleted file mode 100755 index 45718dd..0000000 --- a/src/java/com/jogamp/openal/impl/ALProcAddressLookup.java +++ /dev/null @@ -1,179 +0,0 @@ -/** - * 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. - */ - -package com.jogamp.openal.impl; - -import com.jogamp.common.os.DynamicLookupHelper; -import com.jogamp.common.os.NativeLibrary; -import java.lang.reflect.Field; - -import com.jogamp.openal.*; -import com.jogamp.gluegen.runtime.*; - -/** Helper class for managing OpenAL-related proc address tables. */ - -public class ALProcAddressLookup { - - private static final ALProcAddressTable alTable; - private static final ALCProcAddressTable alcTable; - - private static volatile boolean alTableInitialized = false; - private static volatile boolean alcTableInitialized = false; - - private static final DynamicLookup lookup; - private static volatile NativeLibrary openAL; - - static { - //workaround: map renamed fooImpl back to the real function name - FunctionAddressResolver resolver = new FunctionAddressResolver() { - public long resolve(String string, DynamicLookupHelper dlh) { - if (string.endsWith("Impl")) { - string = string.substring(0, string.length() - 4); - } - return dlh.dynamicLookupFunction(string); - } - }; - alcTable = new ALCProcAddressTable(resolver); - alTable = new ALProcAddressTable(); - lookup = new DynamicLookup(); - } - - static class DynamicLookup implements DynamicLookupHelper { - public long dynamicLookupFunction(String functionName) { - // At some point this may require an OpenAL context to be - // current as we will actually use alGetProcAddress. Since - // this routine is currently broken and there are no - // per-context function pointers anyway we could actually do - // this work anywhere. - if (openAL == null) { - // We choose not to search the system path first because we - // bundle a very recent version of OpenAL which we would like - // to override existing installations - openAL = NativeLibrary.open("OpenAL32", "openal", "OpenAL", - false, - ALProcAddressLookup.class.getClassLoader()); - if (openAL == null) { - throw new RuntimeException("Unable to find and load OpenAL library"); - } - } - return openAL.dynamicLookupFunction(functionName); - } - } - - public static void resetALProcAddressTable() { - if (!alTableInitialized) { - synchronized (ALProcAddressLookup.class) { - if (!alTableInitialized) { - // At some point this may require an OpenAL context to be - // current as we will actually use alGetProcAddress. Since - // this routine is currently broken and there are no - // per-context function pointers anyway we could actually do - // this work anywhere. We should also in theory have - // per-ALcontext ALProcAddressTables and per-ALCdevice - // ALCProcAddressTables. - alTable.reset(lookup); - - // The above only manages to find addresses for the core OpenAL - // functions. The below uses alGetProcAddress() to find the addresses - // of extensions such as EFX, just as in the C++ examples of the - // OpenAL 1.1 SDK. - useALGetProcAddress(); - - alTableInitialized = true; - } - } - } - } - - public static void resetALCProcAddressTable() { - if (!alcTableInitialized) { - synchronized (ALProcAddressLookup.class) { - if (!alcTableInitialized) { - // At some point this may require an OpenAL device to be - // created as we will actually use alcGetProcAddress. Since - // this routine is currently broken and there are no - // per-device function pointers anyway we could actually do - // this work anywhere. We should also in theory have - // per-ALcontext ALProcAddressTables and per-ALCdevice - // ALCProcAddressTables. - alcTable.reset(lookup); - alcTableInitialized = true; - } - } - } - } - - public static ALProcAddressTable getALProcAddressTable() { - return alTable; - } - - public static ALCProcAddressTable getALCProcAddressTable() { - return alcTable; - } - - - /** - * Retrieves the values of the OpenAL functions using alGetProcAddress(). - */ - private static void useALGetProcAddress() { - String addrOfPrefix = "_addressof_"; - ALImpl al = (ALImpl) ALFactory.getAL(); - - Field[] fields = ALProcAddressTable.class.getFields(); - for (int i = 0; i < fields.length; i++) { - Field field = fields[i]; - - // Skip non-address fields - String fieldname = field.getName(); - if (!fieldname.startsWith(addrOfPrefix)) { - continue; - } - try { - String functionname = fieldname.substring(addrOfPrefix.length()); - long fieldval = field.getLong(alTable); - - // Skip fields which have already been valued - if (fieldval != 0) { - continue; - } - - // Get the address - long procAddressVal = al.alGetProcAddress(functionname); - field.setLong(alTable, procAddressVal); - } - catch (Exception ex) { - throw new RuntimeException("Unable to repopulate ALProcAddressTable values", ex); - } - } - } -} |