diff options
Diffstat (limited to 'src/jogl/classes/jogamp/opengl/egl/EGLContext.java')
| -rw-r--r-- | src/jogl/classes/jogamp/opengl/egl/EGLContext.java | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/src/jogl/classes/jogamp/opengl/egl/EGLContext.java b/src/jogl/classes/jogamp/opengl/egl/EGLContext.java new file mode 100644 index 000000000..107d7fbbb --- /dev/null +++ b/src/jogl/classes/jogamp/opengl/egl/EGLContext.java @@ -0,0 +1,279 @@ +/* + * 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.opengl.*; +import com.jogamp.opengl.impl.*; +import com.jogamp.gluegen.runtime.ProcAddressTable; +import com.jogamp.gluegen.runtime.opengl.GLProcAddressResolver; +import java.nio.*; +import java.util.*; +import javax.media.nativewindow.AbstractGraphicsConfiguration; +import javax.media.nativewindow.AbstractGraphicsDevice; + +public abstract class EGLContext extends GLContextImpl { + 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; + + EGLContext(GLDrawableImpl drawable, + GLContext shareWith) { + super(drawable, 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 Map/*<String, String>*/ getFunctionNameMap() { return null; } + + protected Map/*<String, String>*/ getExtensionNameMap() { return null; } + + public final boolean isGLReadDrawableAvailable() { + return true; + } + + protected void makeCurrentImpl(boolean newCreated) throws GLException { + if(EGL.EGL_NO_DISPLAY==((EGLDrawable)drawable).getDisplay() ) { + throw new GLException("drawable not properly initialized, NO DISPLAY: "+drawable); + } + if (EGL.eglGetCurrentContext() != contextHandle) { + if (!EGL.eglMakeCurrent(((EGLDrawable)drawable).getDisplay(), + drawable.getHandle(), + drawableRead.getHandle(), + contextHandle)) { + throw new GLException("Error making context 0x" + + Long.toHexString(contextHandle) + " current: error code " + EGL.eglGetError()); + } + } + } + + protected void releaseImpl() throws GLException { + 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(contextHandle) + ": error code " + EGL.eglGetError()); + } + } + + protected void destroyImpl() throws GLException { + if (!EGL.eglDestroyContext(((EGLDrawable)drawable).getDisplay(), contextHandle)) { + throw new GLException("Error destroying OpenGL context 0x" + + Long.toHexString(contextHandle) + ": error code " + EGL.eglGetError()); + } + } + + protected long createContextARBImpl(long share, boolean direct, int ctp, int major, int minor) { + return 0; // FIXME + } + + protected void destroyContextARBImpl(long _context) { + // FIXME + } + + protected boolean createImpl() throws GLException { + long eglDisplay = ((EGLDrawable)drawable).getDisplay(); + EGLGraphicsConfiguration config = ((EGLDrawable)drawable).getGraphicsConfiguration(); + GLProfile glProfile = drawable.getGLProfile(); + long 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 == 0) { + 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.getHandle(); + 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); + } + contextHandle = EGL.eglCreateContext(eglDisplay, eglConfig, shareWith, contextAttrs, 0); + if (contextHandle == 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(contextHandle) + + ",\n\twrite surface 0x" + Long.toHexString(drawable.getHandle()) + + ",\n\tread surface 0x" + Long.toHexString(drawableRead.getHandle())+ + ",\n\t"+this+ + ",\n\tsharing with 0x" + Long.toHexString(shareWith)); + } + if (!EGL.eglMakeCurrent(((EGLDrawable)drawable).getDisplay(), + drawable.getHandle(), + drawableRead.getHandle(), + contextHandle)) { + throw new GLException("Error making context 0x" + + Long.toHexString(contextHandle) + " current: error code " + EGL.eglGetError()); + } + setGLFunctionAvailability(true, glProfile.usesNativeGLES2()?2:1, 0, CTX_PROFILE_ES|CTX_OPTION_ANY); + return true; + } + + protected final void updateGLXProcAddressTable() { + AbstractGraphicsConfiguration aconfig = drawable.getNativeSurface().getGraphicsConfiguration().getNativeGraphicsConfiguration(); + AbstractGraphicsDevice adevice = aconfig.getScreen().getDevice(); + String key = adevice.getUniqueID(); + if (DEBUG) { + System.err.println(getThreadName() + ": !!! Initializing EGLextension address table: "+key); + } + eglQueryStringInitialized = false; + eglQueryStringAvailable = false; + + EGLExtProcAddressTable table = null; + synchronized(mappedContextTypeObjectLock) { + table = (EGLExtProcAddressTable) mappedGLXProcAddress.get( key ); + } + if(null != table) { + eglExtProcAddressTable = table; + if(DEBUG) { + System.err.println(getThreadName() + ": !!! GLContext EGL ProcAddressTable reusing key("+key+") -> "+table.hashCode()); + } + } else { + if (eglExtProcAddressTable == null) { + // FIXME: cache ProcAddressTables by capability bits so we can + // share them among contexts with the same capabilities + eglExtProcAddressTable = new EGLExtProcAddressTable(new GLProcAddressResolver()); + } + resetProcAddressTable(getEGLExtProcAddressTable()); + synchronized(mappedContextTypeObjectLock) { + mappedGLXProcAddress.put(key, getEGLExtProcAddressTable()); + if(DEBUG) { + System.err.println(getThreadName() + ": !!! GLContext EGL ProcAddressTable mapping key("+key+") -> "+getEGLExtProcAddressTable().hashCode()); + } + } + } + } + + public synchronized String getPlatformExtensionsString() { + if (!eglQueryStringInitialized) { + eglQueryStringAvailable = + getDrawableImpl().getGLDynamicLookupHelper().dynamicLookupFunction("eglQueryString") != 0; + eglQueryStringInitialized = true; + } + if (eglQueryStringAvailable) { + String ret = EGL.eglQueryString(((EGLDrawable)drawable).getDisplay(), + EGL.EGL_EXTENSIONS); + if (DEBUG) { + System.err.println("!!! EGL extensions: " + ret); + } + return ret; + } 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 + // + + protected void copyImpl(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"); + } +} |