jogamp.opengl.egl.EGLContext Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jogl-all Show documentation
Show all versions of jogl-all Show documentation
Java™ Binding for the OpenGL® API
/*
* Copyright (c) 2008 Sun Microsystems, Inc. All Rights Reserved.
* Copyright (c) 2011 JogAmp Community. 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 java.nio.ByteBuffer;
import java.nio.IntBuffer;
import java.util.Map;
import javax.media.nativewindow.AbstractGraphicsConfiguration;
import javax.media.nativewindow.AbstractGraphicsDevice;
import javax.media.opengl.GLCapabilitiesImmutable;
import javax.media.opengl.GLContext;
import javax.media.opengl.GLDrawableFactory;
import javax.media.opengl.GLException;
import javax.media.opengl.GLProfile;
import jogamp.opengl.GLContextImpl;
import jogamp.opengl.GLDrawableImpl;
import com.jogamp.common.nio.Buffers;
import com.jogamp.gluegen.runtime.ProcAddressTable;
import com.jogamp.gluegen.runtime.opengl.GLProcAddressResolver;
import com.jogamp.nativewindow.egl.EGLGraphicsDevice;
import com.jogamp.opengl.GLRendererQuirks;
public 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(final GLDrawableImpl drawable,
final GLContext shareWith) {
super(drawable, shareWith);
}
@Override
protected void resetStates(final boolean isInit) {
eglQueryStringInitialized = false;
eglQueryStringAvailable = false;
eglExtProcAddressTable = null;
// no inner state _eglExt = null;
super.resetStates(isInit);
}
@Override
public Object getPlatformGLExtensions() {
return getEGLExt();
}
public EGLExt getEGLExt() {
if (_eglExt == null) {
_eglExt = new EGLExtImpl(this);
}
return _eglExt;
}
@Override
public final ProcAddressTable getPlatformExtProcAddressTable() {
return eglExtProcAddressTable;
}
public final EGLExtProcAddressTable getEGLExtProcAddressTable() {
return eglExtProcAddressTable;
}
@Override
protected Map getFunctionNameMap() { return null; }
@Override
protected Map getExtensionNameMap() { return null; }
@Override
public final boolean isGLReadDrawableAvailable() {
return true;
}
@Override
protected void makeCurrentImpl() throws GLException {
if (EGL.eglGetCurrentContext() != contextHandle) {
final long dpy = drawable.getNativeSurface().getDisplayHandle();
if (!EGL.eglMakeCurrent(dpy, drawable.getHandle(), drawableRead.getHandle(), contextHandle)) {
throw new GLException("Error making context " + toHexString(contextHandle) +
" current on Thread " + getThreadName() +
" with display " + toHexString(dpy) +
", drawableWrite " + toHexString(drawable.getHandle()) +
", drawableRead "+ toHexString(drawableRead.getHandle()) +
" - Error code " + toHexString(EGL.eglGetError()) + ", " + this);
}
}
}
@Override
protected void releaseImpl() throws GLException {
if (!EGL.eglMakeCurrent(drawable.getNativeSurface().getDisplayHandle(), EGL.EGL_NO_SURFACE, EGL.EGL_NO_SURFACE, EGL.EGL_NO_CONTEXT)) {
throw new GLException("Error freeing OpenGL context " + toHexString(contextHandle) +
": error code " + toHexString(EGL.eglGetError()));
}
}
@Override
protected void destroyImpl() throws GLException {
destroyContextARBImpl(contextHandle);
}
@Override
protected long createContextARBImpl(final long share, final boolean direct, final int ctp, final int major, final int minor) {
return 0; // FIXME
}
@Override
protected void destroyContextARBImpl(final long _context) {
if (!EGL.eglDestroyContext(drawable.getNativeSurface().getDisplayHandle(), _context)) {
final int eglError = EGL.eglGetError();
if(EGL.EGL_SUCCESS != eglError) { /* oops, Mesa EGL impl. may return false, but has no EGL error */
throw new GLException("Error destroying OpenGL context " + toHexString(_context) +
": error code " + toHexString(eglError));
}
}
}
@Override
protected boolean createImpl(final long shareWithHandle) throws GLException {
final EGLGraphicsConfiguration config = (EGLGraphicsConfiguration) drawable.getNativeSurface().getGraphicsConfiguration();
final long eglDisplay = config.getScreen().getDevice().getHandle();
final GLProfile glProfile = drawable.getGLProfile();
final long eglConfig = config.getNativeConfig();
// 0 == EGL.EGL_NO_CONTEXT;
if ( 0 == eglDisplay ) {
throw new GLException("Error: attempted to create an OpenGL context without a display connection");
}
if ( 0 == eglConfig ) {
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("Caught: eglBindAPI to ES failed , error "+toHexString(EGL.eglGetError()));
}
} catch (final GLException glex) {
if (DEBUG) {
glex.printStackTrace();
}
}
// Cannot check extension 'EGL_KHR_create_context' before having one current!
final IntBuffer contextAttrsNIO;
final int contextVersionReq, contextVersionAttr;
{
if ( glProfile.usesNativeGLES3() ) {
contextVersionReq = 3;
if( GLRendererQuirks.existStickyDeviceQuirk( GLDrawableFactory.getEGLFactory().getDefaultDevice(), GLRendererQuirks.GLES3ViaEGLES2Config) ) {
contextVersionAttr = 2;
} else {
contextVersionAttr = 3;
}
} else if ( glProfile.usesNativeGLES2() ) {
contextVersionReq = 2;
contextVersionAttr = 2;
} else if ( glProfile.usesNativeGLES1() ) {
contextVersionReq = 1;
contextVersionAttr = 1;
} else {
throw new GLException("Error creating OpenGL context - invalid GLProfile: "+glProfile);
}
// EGLExt.EGL_CONTEXT_MAJOR_VERSION_KHR == EGL.EGL_CONTEXT_CLIENT_VERSION
final int[] contextAttrs = new int[] { EGL.EGL_CONTEXT_CLIENT_VERSION, contextVersionAttr, EGL.EGL_NONE };
contextAttrsNIO = Buffers.newDirectIntBuffer(contextAttrs);
}
contextHandle = EGL.eglCreateContext(eglDisplay, eglConfig, shareWithHandle, contextAttrsNIO);
if (contextHandle == 0) {
throw new GLException("Error creating OpenGL context: eglDisplay "+toHexString(eglDisplay)+
", eglConfig "+config+", "+glProfile+", shareWith "+toHexString(shareWithHandle)+", error "+toHexString(EGL.eglGetError()));
}
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(shareWithHandle));
}
if (!EGL.eglMakeCurrent(eglDisplay, drawable.getHandle(), drawableRead.getHandle(), contextHandle)) {
throw new GLException("Error making context " +
toHexString(contextHandle) + " current: error code " + toHexString(EGL.eglGetError()));
}
if( !setGLFunctionAvailability(true, contextVersionReq, 0, CTX_PROFILE_ES,
true /* strictMatch */, // always req. strict match
false /* withinGLVersionsMapping */) ) {
if(DEBUG) {
System.err.println(getThreadName() + ": createImpl: setGLFunctionAvailability FAILED delete "+toHexString(contextHandle));
}
EGL.eglMakeCurrent(drawable.getNativeSurface().getDisplayHandle(), EGL.EGL_NO_SURFACE, EGL.EGL_NO_SURFACE, EGL.EGL_NO_CONTEXT);
EGL.eglDestroyContext(drawable.getNativeSurface().getDisplayHandle(), contextHandle);
contextHandle = 0;
return false;
} else {
return true;
}
}
@Override
protected final void updateGLXProcAddressTable() {
final AbstractGraphicsConfiguration aconfig = drawable.getNativeSurface().getGraphicsConfiguration();
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+") -> "+toHexString(table.hashCode()));
}
} else {
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+") -> "+toHexString(getEGLExtProcAddressTable().hashCode()));
}
}
}
}
@Override
protected final StringBuilder getPlatformExtensionsStringImpl() {
final StringBuilder sb = new StringBuilder();
if (!eglQueryStringInitialized) {
eglQueryStringAvailable = getDrawableImpl().getGLDynamicLookupHelper().isFunctionAvailable("eglQueryString");
eglQueryStringInitialized = true;
}
if (eglQueryStringAvailable) {
final String ret = EGL.eglQueryString(drawable.getNativeSurface().getDisplayHandle(), EGL.EGL_EXTENSIONS);
if (DEBUG) {
System.err.println("EGL extensions: " + ret);
}
sb.append(ret);
}
return sb;
}
@Override
protected boolean setSwapIntervalImpl(final int interval) {
if( hasRendererQuirk(GLRendererQuirks.NoSetSwapInterval) ) {
return false;
}
return EGL.eglSwapInterval(drawable.getNativeSurface().getDisplayHandle(), interval);
}
//
// Accessible ..
//
/* pp */ void mapCurrentAvailableGLVersion(final AbstractGraphicsDevice device) {
mapStaticGLVersion(device, ctxVersion.getMajor(), ctxVersion.getMinor(), ctxOptions);
}
/* pp */ int getContextOptions() { return ctxOptions; }
/* pp */ static void mapStaticGLESVersion(final AbstractGraphicsDevice device, final GLCapabilitiesImmutable caps) {
final GLProfile glp = caps.getGLProfile();
final int[] reqMajorCTP = new int[2];
GLContext.getRequestMajorAndCompat(glp, reqMajorCTP);
if( glp.isGLES() ) {
if( reqMajorCTP[0] >= 3 ) {
reqMajorCTP[1] |= GLContext.CTX_IMPL_ES3_COMPAT | GLContext.CTX_IMPL_ES2_COMPAT | GLContext.CTX_IMPL_FBO ;
} else if( reqMajorCTP[0] >= 2 ) {
reqMajorCTP[1] |= GLContext.CTX_IMPL_ES2_COMPAT | GLContext.CTX_IMPL_FBO ;
}
}
if( !caps.getHardwareAccelerated() ) {
reqMajorCTP[1] |= GLContext.CTX_IMPL_ACCEL_SOFT;
}
mapStaticGLVersion(device, reqMajorCTP[0], 0, reqMajorCTP[1]);
}
/* pp */ static void mapStaticGLVersion(final AbstractGraphicsDevice device, final int major, final int minor, final int ctp) {
if( 0 != ( ctp & GLContext.CTX_PROFILE_ES) ) {
// ES1, ES2, ES3, ..
mapStaticGLVersion(device, major /* reqMajor */, major, minor, ctp);
if( 3 == major ) {
// map ES2 -> ES3
mapStaticGLVersion(device, 2 /* reqMajor */, major, minor, ctp);
}
}
}
private static void mapStaticGLVersion(final AbstractGraphicsDevice device, final int reqMajor, final int major, final int minor, final int ctp) {
GLContext.mapAvailableGLVersion(device, reqMajor, GLContext.CTX_PROFILE_ES, major, minor, ctp);
if(! ( device instanceof EGLGraphicsDevice ) ) {
final EGLGraphicsDevice eglDevice = new EGLGraphicsDevice(device.getHandle(), EGL.EGL_NO_DISPLAY, device.getConnection(), device.getUnitID(), null);
GLContext.mapAvailableGLVersion(eglDevice, reqMajor, GLContext.CTX_PROFILE_ES, major, minor, ctp);
}
}
protected static String getGLVersion(final int major, final int minor, final int ctp, final String gl_version) {
return GLContext.getGLVersion(major, minor, ctp, gl_version);
}
protected static boolean getAvailableGLVersionsSet(final AbstractGraphicsDevice device) {
return GLContext.getAvailableGLVersionsSet(device);
}
protected static void setAvailableGLVersionsSet(final AbstractGraphicsDevice device) {
GLContext.setAvailableGLVersionsSet(device);
}
protected static String toHexString(final int hex) {
return GLContext.toHexString(hex);
}
protected static String toHexString(final long hex) {
return GLContext.toHexString(hex);
}
//----------------------------------------------------------------------
// Currently unimplemented stuff
//
@Override
protected void copyImpl(final GLContext source, final int mask) throws GLException {
throw new GLException("Not yet implemented");
}
@Override
public final ByteBuffer glAllocateMemoryNV(final int size, final float readFrequency, final float writeFrequency, final float priority) {
throw new GLException("Should not call this");
}
@Override
public final void glFreeMemoryNV(final ByteBuffer pointer) {
throw new GLException("Should not call this");
}
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy