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/**
* Copyright 2010 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:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions 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.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package com.jogamp.opengl.impl;
import java.util.ArrayList;
import javax.media.opengl.GLCapabilities;
import javax.media.opengl.GLCapabilitiesImmutable;
public class GLGraphicsConfigurationUtil {
public static final int WINDOW_BIT = 1 << 0;
public static final int BITMAP_BIT = 1 << 1;
public static final int PBUFFER_BIT = 1 << 2;
public static final int ALL_BITS = WINDOW_BIT | BITMAP_BIT | PBUFFER_BIT ;
public static final StringBuffer winAttributeBits2String(StringBuffer sb, int winattrbits) {
if(null==sb) {
sb = new StringBuffer();
}
boolean seperator = false;
if( 0 != ( WINDOW_BIT & winattrbits ) ) {
sb.append("WINDOW");
seperator=true;
}
if( 0 != ( BITMAP_BIT & winattrbits ) ) {
if(seperator) {
sb.append(", ");
}
sb.append("BITMAP");
seperator=true;
}
if( 0 != ( PBUFFER_BIT & winattrbits ) ) {
if(seperator) {
sb.append(", ");
}
sb.append("PBUFFER");
}
return sb;
}
/**
* @return bitmask representing the input boolean in exclusive or logic, ie only one bit will be set
*/
public static final int getWinAttributeBits(boolean isOnscreen, boolean isPBuffer) {
int winattrbits = 0;
if(isOnscreen) {
winattrbits |= WINDOW_BIT;
} else if (!isPBuffer) {
winattrbits |= BITMAP_BIT;
} else {
winattrbits |= PBUFFER_BIT;
}
return winattrbits;
}
/**
* @see #getWinAttributeBits(boolean, boolean)
*/
public static final int getWinAttributeBits(GLCapabilitiesImmutable caps) {
return getWinAttributeBits(caps.isOnscreen(), caps.isPBuffer());
}
public static final boolean addGLCapabilitiesPermutations(ArrayList capsBucket, GLCapabilitiesImmutable temp, int winattrbits) {
int preSize = capsBucket.size();
if( 0 != ( WINDOW_BIT & winattrbits ) ) {
GLCapabilities cpy = (GLCapabilities) temp.cloneMutable();
cpy.setOnscreen(true);
capsBucket.add(cpy);
}
if( 0 != ( PBUFFER_BIT & winattrbits ) ) {
GLCapabilities cpy = (GLCapabilities) temp.cloneMutable();
cpy.setPBuffer(true);
capsBucket.add(cpy);
}
if( 0 != ( BITMAP_BIT & winattrbits ) ) {
GLCapabilities cpy = (GLCapabilities) temp.cloneMutable();
cpy.setOnscreen(false);
cpy.setPBuffer(false);
capsBucket.add(cpy);
}
return capsBucket.size() > preSize;
}
public static GLCapabilitiesImmutable fixGLCapabilities(GLCapabilitiesImmutable capsRequested, boolean pbufferAvailable)
{
if( !capsRequested.isOnscreen() ) {
return fixOffScreenGLCapabilities(capsRequested, pbufferAvailable);
}
return capsRequested;
}
public static GLCapabilitiesImmutable fixOffScreenGLCapabilities(GLCapabilitiesImmutable capsRequested, boolean pbufferAvailable)
{
if( capsRequested.getDoubleBuffered() ||
capsRequested.isOnscreen() ||
( !pbufferAvailable && capsRequested.isPBuffer() ) )
{
// fix caps ..
GLCapabilities caps2 = (GLCapabilities) capsRequested.cloneMutable();
caps2.setDoubleBuffered(false); // FIXME DBLBUFOFFSCRN
caps2.setOnscreen(false);
if(caps2.isPBuffer() && !pbufferAvailable) {
caps2.setPBuffer(false);
}
return caps2;
}
return capsRequested;
}
}
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