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/*
* 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.nwi.*;
import javax.media.opengl.*;
import com.sun.opengl.impl.*;
import com.sun.gluegen.runtime.NativeLibrary;
public class EGLConfig {
public _EGLConfig getNativeConfig() {
return _config;
}
public int getNativeConfigID() {
return configID;
}
public NWCapabilities getCapabilities() {
return capabilities;
}
public int[] getAttributeList() {
return glCapabilities2AttribList(capabilities);
}
public EGLConfig(long display, int configID) {
int[] attrs = new int[] {
EGL.EGL_RENDERABLE_TYPE, -1,
EGL.EGL_CONFIG_ID, configID,
EGL.EGL_NONE
};
if (GLProfile.isGLES2()) {
attrs[1] = EGL.EGL_OPENGL_ES2_BIT;
} else if (GLProfile.isGLES1()) {
attrs[1] = EGL.EGL_OPENGL_ES_BIT;
} else {
throw new GLException("Error creating EGL drawable - invalid GLProfile");
}
_EGLConfig[] configs = new _EGLConfig[1];
int[] numConfigs = new int[1];
if (!EGL.eglChooseConfig(display,
attrs, 0,
configs, 1,
numConfigs, 0)) {
throw new GLException("Graphics configuration selection (eglChooseConfig) failed");
}
if (numConfigs[0] == 0) {
throw new GLException("No valid graphics configuration selected from eglChooseConfig");
}
capabilities = new NWCapabilities();
setup(display, configID, configs[0]);
}
public EGLConfig(long display, NWCapabilities caps) {
int[] attrs = glCapabilities2AttribList(caps);
_EGLConfig[] configs = new _EGLConfig[1];
int[] numConfigs = new int[1];
if (!EGL.eglChooseConfig(display,
attrs, 0,
configs, 1,
numConfigs, 0)) {
throw new GLException("Graphics configuration selection (eglChooseConfig) failed");
}
if (numConfigs[0] == 0) {
throw new GLException("No valid graphics configuration selected from eglChooseConfig");
}
capabilities = (NWCapabilities)caps.clone();
setup(display, -1, configs[0]);
}
private void setup(long display, int setConfigID, _EGLConfig _config) {
this._config = _config;
int[] val = new int[1];
// get the configID
if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_CONFIG_ID, val, 0)) {
configID = val[0];
if( setConfigID>=0 && setConfigID!=this.configID ) {
throw new GLException("EGL ConfigID mismatch, ask "+setConfigID+", got "+configID);
}
} else {
throw new GLException("EGL couldn't retrieve ConfigID");
}
// Read the actual configuration into the choosen caps
if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_RED_SIZE, val, 0)) {
capabilities.setRedBits(val[0]);
}
if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_GREEN_SIZE, val, 0)) {
capabilities.setGreenBits(val[0]);
}
if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_BLUE_SIZE, val, 0)) {
capabilities.setBlueBits(val[0]);
}
if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_ALPHA_SIZE, val, 0)) {
capabilities.setAlphaBits(val[0]);
}
if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_STENCIL_SIZE, val, 0)) {
capabilities.setStencilBits(val[0]);
}
if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_DEPTH_SIZE, val, 0)) {
capabilities.setDepthBits(val[0]);
}
}
public static int[] glCapabilities2AttribList(NWCapabilities caps) {
int[] attrs = new int[] {
EGL.EGL_RENDERABLE_TYPE, -1,
// FIXME: does this need to be configurable?
EGL.EGL_SURFACE_TYPE, EGL.EGL_WINDOW_BIT,
EGL.EGL_RED_SIZE, caps.getRedBits(),
EGL.EGL_GREEN_SIZE, caps.getGreenBits(),
EGL.EGL_BLUE_SIZE, caps.getBlueBits(),
EGL.EGL_ALPHA_SIZE, (caps.getAlphaBits() > 0 ? caps.getAlphaBits() : EGL.EGL_DONT_CARE),
EGL.EGL_STENCIL_SIZE, (caps.getStencilBits() > 0 ? caps.getStencilBits() : EGL.EGL_DONT_CARE),
EGL.EGL_DEPTH_SIZE, caps.getDepthBits(),
EGL.EGL_NONE
};
if (GLProfile.isGLES2()) {
attrs[1] = EGL.EGL_OPENGL_ES2_BIT;
} else if (GLProfile.isGLES1()) {
attrs[1] = EGL.EGL_OPENGL_ES_BIT;
} else {
throw new GLException("Error creating EGL drawable - invalid GLProfile");
}
return attrs;
}
public String toString() {
return "EGLConfig[ id "+configID+
", "+capabilities+"]";
}
private _EGLConfig _config;
private int configID;
private NWCapabilities capabilities;
}
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