diff options
Diffstat (limited to 'src/jogl/classes/com/jogamp/opengl/impl/egl/EGLContext.java')
| -rwxr-xr-x | src/jogl/classes/com/jogamp/opengl/impl/egl/EGLContext.java | 299 |
1 files changed, 299 insertions, 0 deletions
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLContext.java b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLContext.java new file mode 100755 index 000000000..42d4588b5 --- /dev/null +++ b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLContext.java @@ -0,0 +1,299 @@ +/* + * 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.jogamp.opengl.impl.egl; + +import javax.media.nativewindow.*; +import javax.media.opengl.*; +import com.jogamp.opengl.impl.*; +import com.jogamp.gluegen.runtime.ProcAddressTable; +import java.nio.*; +import java.util.*; + +public abstract class EGLContext extends GLContextImpl { + private long eglContext; + private boolean eglQueryStringInitialized; + private boolean eglQueryStringAvailable; + private EGLExt eglExt; + // Table that holds the addresses of the native C-language entry points for + // EGL extension functions. + private EGLExtProcAddressTable eglExtProcAddressTable; + + public EGLContext(GLDrawableImpl drawable, GLDrawableImpl drawableRead, + GLContext shareWith) { + super(drawable, drawableRead, shareWith); + } + + public EGLContext(GLDrawableImpl drawable, + GLContext shareWith) { + this(drawable, null, shareWith); + } + + public Object getPlatformGLExtensions() { + return getEGLExt(); + } + + public EGLExt getEGLExt() { + if (eglExt == null) { + eglExt = new EGLExtImpl(this); + } + return eglExt; + } + + public final ProcAddressTable getPlatformExtProcAddressTable() { + return eglExtProcAddressTable; + } + + public final EGLExtProcAddressTable getEGLExtProcAddressTable() { + return eglExtProcAddressTable; + } + + protected String mapToRealGLFunctionName(String glFunctionName) { + return glFunctionName; + } + + protected String mapToRealGLExtensionName(String glExtensionName) { + return glExtensionName; + } + + public long getContext() { + return eglContext; + } + + protected int makeCurrentImpl() throws GLException { + if(EGL.EGL_NO_DISPLAY==((EGLDrawable)drawable).getDisplay() ) { + System.err.println("drawable not properly initialized"); + return CONTEXT_NOT_CURRENT; + } + boolean created = false; + if (eglContext == 0) { + create(); + if (DEBUG) { + System.err.println(getThreadName() + ": !!! Created GL context 0x" + + Long.toHexString(eglContext) + " for " + getClass().getName()); + } + created = true; + } + if (EGL.eglGetCurrentContext() != eglContext) { + if (!EGL.eglMakeCurrent(((EGLDrawable)drawable).getDisplay(), + ((EGLDrawable)drawable).getSurface(), + ((EGLDrawable)drawableRead).getSurface(), + eglContext)) { + throw new GLException("Error making context 0x" + + Long.toHexString(eglContext) + " current: error code " + EGL.eglGetError()); + } + } + + if (created) { + setGLFunctionAvailability(false); + return CONTEXT_CURRENT_NEW; + } + return CONTEXT_CURRENT; + } + + protected void releaseImpl() throws GLException { + getDrawableImpl().getFactoryImpl().lockToolkit(); + try { + if (!EGL.eglMakeCurrent(((EGLDrawable)drawable).getDisplay(), + EGL.EGL_NO_SURFACE, + EGL.EGL_NO_SURFACE, + EGL.EGL_NO_CONTEXT)) { + throw new GLException("Error freeing OpenGL context 0x" + + Long.toHexString(eglContext) + ": error code " + EGL.eglGetError()); + } + } finally { + getDrawableImpl().getFactoryImpl().unlockToolkit(); + } + } + + protected void destroyImpl() throws GLException { + getDrawableImpl().getFactoryImpl().lockToolkit(); + try { + if (eglContext != 0) { + if (!EGL.eglDestroyContext(((EGLDrawable)drawable).getDisplay(), eglContext)) { + throw new GLException("Error destroying OpenGL context 0x" + + Long.toHexString(eglContext) + ": error code " + EGL.eglGetError()); + } + eglContext = 0; + GLContextShareSet.contextDestroyed(this); + } + } finally { + getDrawableImpl().getFactoryImpl().unlockToolkit(); + } + } + + protected void create() throws GLException { + long eglDisplay = ((EGLDrawable)drawable).getDisplay(); + EGLGraphicsConfiguration config = ((EGLDrawable)drawable).getGraphicsConfiguration(); + GLProfile glProfile = drawable.getGLProfile(); + _EGLConfig eglConfig = config.getNativeConfig(); + long shareWith = EGL.EGL_NO_CONTEXT; + + if (eglDisplay == 0) { + throw new GLException("Error: attempted to create an OpenGL context without a display connection"); + } + if (eglConfig == null) { + throw new GLException("Error: attempted to create an OpenGL context without a graphics configuration"); + } + + try { + // might be unavailable on EGL < 1.2 + if(!EGL.eglBindAPI(EGL.EGL_OPENGL_ES_API)) { + throw new GLException("eglBindAPI to ES failed , error 0x"+Integer.toHexString(EGL.eglGetError())); + } + } catch (GLException glex) { + if (DEBUG) { + glex.printStackTrace(); + } + } + + EGLContext other = (EGLContext) GLContextShareSet.getShareContext(this); + if (other != null) { + shareWith = other.getContext(); + if (shareWith == 0) { + throw new GLException("GLContextShareSet returned an invalid OpenGL context"); + } + } + + int[] contextAttrs = new int[] { + EGL.EGL_CONTEXT_CLIENT_VERSION, -1, + EGL.EGL_NONE + }; + if (glProfile.usesNativeGLES2()) { + contextAttrs[1] = 2; + } else if (glProfile.usesNativeGLES1()) { + contextAttrs[1] = 1; + } else { + throw new GLException("Error creating OpenGL context - invalid GLProfile: "+glProfile); + } + eglContext = EGL.eglCreateContext(eglDisplay, eglConfig, shareWith, contextAttrs, 0); + if (eglContext == 0) { + throw new GLException("Error creating OpenGL context: eglDisplay 0x"+Long.toHexString(eglDisplay)+ + ", "+glProfile+", error 0x"+Integer.toHexString(EGL.eglGetError())); + } + GLContextShareSet.contextCreated(this); + if (DEBUG) { + System.err.println(getThreadName() + ": !!! Created OpenGL context 0x" + + Long.toHexString(eglContext) + + ",\n\twrite surface 0x" + Long.toHexString(((EGLDrawable)drawable).getSurface()) + + ",\n\tread surface 0x" + Long.toHexString(((EGLDrawable)drawableRead).getSurface())+ + ",\n\t"+this+ + ",\n\tsharing with 0x" + Long.toHexString(shareWith)); + } + if (!EGL.eglMakeCurrent(((EGLDrawable)drawable).getDisplay(), + ((EGLDrawable)drawable).getSurface(), + ((EGLDrawable)drawableRead).getSurface(), + eglContext)) { + throw new GLException("Error making context 0x" + + Long.toHexString(eglContext) + " current: error code " + EGL.eglGetError()); + } + setGLFunctionAvailability(true); + } + + public boolean isCreated() { + return (eglContext != 0); + } + + protected void updateGLProcAddressTable() { + if (DEBUG) { + System.err.println(getThreadName() + ": !!! Initializing EGL extension address table"); + } + eglQueryStringInitialized = false; + eglQueryStringAvailable = false; + + if (eglExtProcAddressTable == null) { + // FIXME: cache ProcAddressTables by capability bits so we can + // share them among contexts with the same capabilities + eglExtProcAddressTable = new EGLExtProcAddressTable(); + } + resetProcAddressTable(getEGLExtProcAddressTable()); + super.updateGLProcAddressTable(); + } + + public synchronized String getPlatformExtensionsString() { + if (!eglQueryStringInitialized) { + eglQueryStringAvailable = + getDrawableImpl().getDynamicLookupHelper().dynamicLookupFunction("eglQueryString") != 0; + eglQueryStringInitialized = true; + } + if (eglQueryStringAvailable) { + GLDrawableFactoryImpl factory = getDrawableImpl().getFactoryImpl(); + factory.lockToolkit(); + try { + String ret = EGL.eglQueryString(((EGLDrawable)drawable).getDisplay(), + EGL.EGL_EXTENSIONS); + if (DEBUG) { + System.err.println("!!! EGL extensions: " + ret); + } + return ret; + } finally { + factory.unlockToolkit(); + } + } else { + return ""; + } + } + + protected void setSwapIntervalImpl(int interval) { + if (EGL.eglSwapInterval(((EGLDrawable)drawable).getDisplay(), interval)) { + currentSwapInterval = interval ; + } + } + + public abstract void bindPbufferToTexture(); + + public abstract void releasePbufferFromTexture(); + + //---------------------------------------------------------------------- + // Currently unimplemented stuff + // + + public void copy(GLContext source, int mask) throws GLException { + throw new GLException("Not yet implemented"); + } + + + public ByteBuffer glAllocateMemoryNV(int arg0, float arg1, float arg2, float arg3) { + throw new GLException("Should not call this"); + } + + public boolean offscreenImageNeedsVerticalFlip() { + throw new GLException("Should not call this"); + } + + public int getOffscreenContextPixelDataType() { + throw new GLException("Should not call this"); + } +} |