/*
* 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 jogamp.opengl.egl;
import javax.media.opengl.*;
import jogamp.opengl.*;
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 "+toHexString(eglDisplay)+
", eglConfig "+config+", "+glProfile+", shareWith "+toHexString(shareWith)+", error "+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());
}
int ctp = CTX_PROFILE_ES|CTX_OPTION_ANY;
int major;
if(glProfile.usesNativeGLES2()) {
ctp |= CTX_PROFILE_ES2_COMPAT;
major = 2;
} else {
major = 1;
}
setGLFunctionAvailability(true, true, major, 0, ctp);
return true;
}
protected final void updateGLXProcAddressTable() {
final AbstractGraphicsConfiguration aconfig = drawable.getNativeSurface().getGraphicsConfiguration().getNativeGraphicsConfiguration();
final AbstractGraphicsDevice adevice = aconfig.getScreen().getDevice();
final String key = "EGL-"+adevice.getUniqueID();
if (DEBUG) {
System.err.println(getThreadName() + ": !!! Initializing EGLextension address table: "+key);
}
eglQueryStringInitialized = false;
eglQueryStringAvailable = false;
ProcAddressTable table = null;
synchronized(mappedContextTypeObjectLock) {
table = mappedGLXProcAddress.get( key );
}
if(null != table) {
eglExtProcAddressTable = (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");
}
}