From a959c53b7ac91e489bf0959391e892790b9ff248 Mon Sep 17 00:00:00 2001 From: Kenneth Russel Date: Mon, 15 Jun 2009 22:57:38 +0000 Subject: Copied JOGL_2_SANDBOX r1957 on to trunk; JOGL_2_SANDBOX branch is now closed git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@1959 232f8b59-042b-4e1e-8c03-345bb8c30851 --- .../opengl/impl/egl/EGLDynamicLookupHelper.java | 249 +++++++++++++++++++++ 1 file changed, 249 insertions(+) create mode 100755 src/jogl/classes/com/sun/opengl/impl/egl/EGLDynamicLookupHelper.java (limited to 'src/jogl/classes/com/sun/opengl/impl/egl/EGLDynamicLookupHelper.java') diff --git a/src/jogl/classes/com/sun/opengl/impl/egl/EGLDynamicLookupHelper.java b/src/jogl/classes/com/sun/opengl/impl/egl/EGLDynamicLookupHelper.java new file mode 100755 index 000000000..97080b5f7 --- /dev/null +++ b/src/jogl/classes/com/sun/opengl/impl/egl/EGLDynamicLookupHelper.java @@ -0,0 +1,249 @@ +/* + * Copyright (c) 2008 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. + * + * Sun gratefully acknowledges that this software was originally authored + * and developed by Kenneth Bradley Russell and Christopher John Kline. + */ + +package com.sun.opengl.impl.egl; + +import java.util.*; +import javax.media.nativewindow.*; +import javax.media.opengl.*; +import com.sun.opengl.impl.*; +import com.sun.nativewindow.impl.*; +import com.sun.gluegen.runtime.NativeLibrary; +import com.sun.gluegen.runtime.DynamicLookupHelper; + +/** + * Abstract implementation of the DynamicLookupHelper for EGL, + * which decouples it's dependencies to EGLDrawableFactory. + * + * Currently two implementations exist, one for ES1 and one for ES2. + */ +public abstract class EGLDynamicLookupHelper implements DynamicLookupHelper { + protected static final boolean DEBUG = com.sun.opengl.impl.Debug.debug("EGL"); + + private static final EGLDynamicLookupHelper eglES1DynamicLookupHelper; + private static final EGLDynamicLookupHelper eglES2DynamicLookupHelper; + private List/**/ glesLibraries; + + static { + EGLDynamicLookupHelper tmp=null; + try { + tmp = new EGLES1DynamicLookupHelper(); + } catch (Throwable t) { + if(DEBUG) { + t.printStackTrace(); + } + } + eglES1DynamicLookupHelper = tmp; + + tmp=null; + try { + tmp = new EGLES2DynamicLookupHelper(); + } catch (Throwable t) { + if(DEBUG) { + t.printStackTrace(); + } + } + eglES2DynamicLookupHelper = tmp; + } + + public static EGLDynamicLookupHelper getDynamicLookupHelper(GLProfile glp) { + if (glp.usesNativeGLES2()) { + if(null==eglES2DynamicLookupHelper) { + throw new GLException("EGLDynamicLookupHelper for ES2 not available"); + } + return eglES2DynamicLookupHelper; + } else if (glp.usesNativeGLES1()) { + if(null==eglES1DynamicLookupHelper) { + throw new GLException("EGLDynamicLookupHelper for ES1 not available"); + } + return eglES1DynamicLookupHelper; + } else { + throw new GLException("Unsupported: "+glp); + } + } + + public static EGLDynamicLookupHelper getDynamicLookupHelper(int esProfile) { + if (2==esProfile) { + if(null==eglES2DynamicLookupHelper) { + throw new GLException("EGLDynamicLookupHelper for ES2 not available"); + } + return eglES2DynamicLookupHelper; + } else if (1==esProfile) { + if(null==eglES1DynamicLookupHelper) { + throw new GLException("EGLDynamicLookupHelper for ES1 not available"); + } + return eglES1DynamicLookupHelper; + } else { + throw new GLException("Unsupported: ES"+esProfile); + } + } + + protected EGLDynamicLookupHelper() { + loadGLESLibrary(getESProfile()); + EGL.resetProcAddressTable(this); + } + + /** Must return the proper ES profile number, 1 for ES1 and 2 for ES2 */ + protected abstract int getESProfile(); + + /** Must return at least one OpenGL ES library name */ + protected abstract List/**/ getGLESLibNames(); + + /** May return OpenGL ES library name(s) */ + protected List/**/ getEGLLibNames() { + List/**/ eglLibNames = new ArrayList(); + + // EGL + eglLibNames.add("EGL"); + // for windows distributions using the 'unlike' lib prefix, + // where our tool does not add it. + eglLibNames.add("libEGL"); + + return eglLibNames; + } + + private NativeLibrary loadFirstAvailable(List/**/ libNames, ClassLoader loader) { + for (Iterator iter = libNames.iterator(); iter.hasNext(); ) { + NativeLibrary lib = NativeLibrary.open((String) iter.next(), loader, false /*global*/); + if (lib != null) { + return lib; + } + } + return null; + } + + private void loadGLESLibrary(int esProfile) { + List/**/ glesLibNames = getGLESLibNames(); + List/**/ eglLibNames = getEGLLibNames(); + + ClassLoader loader = getClass().getClassLoader(); + NativeLibrary lib = null; + + glesLibraries = new ArrayList(); + + // ES libraries .. + lib = loadFirstAvailable(glesLibNames, loader); + if (lib == null) { + throw new GLException("Unable to dynamically load OpenGL ES library for profile ES" + esProfile); + } + glesLibraries.add(lib); + + if(null!=eglLibNames && eglLibNames.size()>0) { + // EGL libraries .. + lib = loadFirstAvailable(eglLibNames, loader); + if (lib == null) { + throw new GLException("Unable to dynamically load EGL library for profile ES" + esProfile); + } + glesLibraries.add(lib); + } + + if (esProfile==2) { + NativeLibLoader.loadES2(); + } else if (esProfile==1) { + NativeLibLoader.loadES1(); + } else { + throw new GLException("Unsupported: ES"+esProfile); + } + } + + private long dynamicLookupFunctionOnLibs(String glFuncName) { + String funcName=glFuncName; + long addr = dynamicLookupFunctionOnLibsImpl(funcName); + if( 0==addr && NativeWindowFactory.getNativeWindowType(false)==NativeWindowFactory.TYPE_WINDOWS ) { + // Hack: try some C++ decoration here for Imageon's emulation libraries .. + final int argAlignment=4; // 4 byte alignment of each argument + final int maxArguments=12; // experience .. + for(int arg=0; 0==addr && arg<=maxArguments; arg++) { + funcName = "_"+glFuncName+"@"+(arg*argAlignment); + addr = dynamicLookupFunctionOnLibsImpl(funcName); + } + } + if(DEBUG) { + if(0!=addr) { + System.err.println("Lookup-Native: "+glFuncName+" / "+funcName+" 0x"+Long.toHexString(addr)); + } else { + System.err.println("Lookup-Native: "+glFuncName+" / "+funcName+" ** FAILED ** "); + } + } + return addr; + } + + private long dynamicLookupFunctionOnLibsImpl(String glFuncName) { + // Look up this function name in all known libraries + for (Iterator iter = glesLibraries.iterator(); iter.hasNext(); ) { + NativeLibrary lib = (NativeLibrary) iter.next(); + long addr = lib.lookupFunction(glFuncName); + if (addr != 0) { + return addr; + } + } + return 0; + } + + private long eglGetProcAddressHandle = 0; + + public long dynamicLookupFunction(String glFuncName) { + if(null==glFuncName) { + return 0; + } + + // bootstrap eglGetProcAddress + if(0==eglGetProcAddressHandle) { + eglGetProcAddressHandle = dynamicLookupFunctionOnLibs("eglGetProcAddress"); + if(0==eglGetProcAddressHandle) { + GLException e = new GLException("Couldn't find eglGetProcAddress function entry"); + if(DEBUG) { + e.printStackTrace(); + } + throw e; + } + } + + if(glFuncName.equals("eglGetProcAddress")) { + return eglGetProcAddressHandle; + } + + long addr = EGL.eglGetProcAddress(eglGetProcAddressHandle, glFuncName); + if(DEBUG) { + if(0!=addr) { + System.err.println("Lookup-EGL: <"+glFuncName+"> 0x"+Long.toHexString(addr)); + } + } + if(0==addr) { + addr = dynamicLookupFunctionOnLibs(glFuncName); + } + return addr; + } +} -- cgit v1.2.3