/**
* Copyright (c) 2003-2009, Xith3D Project Group all rights reserved.
*
* Portions based on the Java3D interface, Copyright by Sun Microsystems.
* Many thanks to the developers of Java3D and Sun Microsystems for their
* innovation and design.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 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.
*
* Neither the name of the 'Xith3D Project Group' nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT OWNER 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) A
* RISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE
*/
package org.xith3d.render.jsr231;
import java.nio.ByteBuffer;
import java.nio.FloatBuffer;
import javax.media.opengl.GL;
import org.xith3d.render.OpenGLCapabilities;
import org.xith3d.render.OpenGLStatesCache;
import org.xith3d.render.OpenGlExtensions;
import com.sun.opengl.util.BufferUtil;
/**
* This extension is just used to initialize the states.
*
* @author Marvin Froehlich (aka Qudus)
*/
public class OpenGLStatesCacheImpl extends OpenGLStatesCache
{
private static final FloatBuffer floatBuffer = BufferUtil.newFloatBuffer( 16 );
private static final ByteBuffer byteBuffer = BufferUtil.newByteBuffer( 16 );
/**
* {@inheritDoc}
*/
@Override
public final void update( Object glObj, OpenGLCapabilities glCaps )
{
final GL gl = (GL)glObj;
final int oldSelectedServerTU = ( this.currentServerTextureUnit == -1 ) ? 0 : this.currentServerTextureUnit;
final int oldSelectedClientTU = ( this.currentClientTextureUnit == -1 ) ? 0 : this.currentClientTextureUnit;
int texCoordArrayEnabledMask = 0;
final boolean[] texture1DEnabled = new boolean[ glCaps.getMaxTextureUnits() ];
final boolean[] texture2DEnabled = new boolean[ glCaps.getMaxTextureUnits() ];
final boolean[] texture3DEnabled = new boolean[ glCaps.getMaxTextureUnits() ];
final boolean[] textureCMEnabled = new boolean[ glCaps.getMaxTextureUnits() ];
final int[] texGenEnableMask = new int[ glCaps.getMaxTextureUnits() ];
int maskValue = 1;
for ( int i = 0; i < glCaps.getMaxTextureUnits(); i++ )
{
TextureUnitStateUnitPeer.selectServerTextureUnit( gl, i, this, true );
if ( gl.glIsEnabled( GL.GL_TEXTURE_COORD_ARRAY ) )
texCoordArrayEnabledMask |= maskValue;
texture1DEnabled[ i ] = gl.glIsEnabled( GL.GL_TEXTURE_1D );
texture2DEnabled[ i ] = gl.glIsEnabled( GL.GL_TEXTURE_2D );
texture3DEnabled[ i ] = gl.glIsEnabled( GL.GL_TEXTURE_3D );
textureCMEnabled[ i ] = gl.glIsEnabled( GL.GL_TEXTURE_CUBE_MAP );
maskValue *= 2;
texGenEnableMask[ i ] = 0;
if ( gl.glIsEnabled( GL.GL_TEXTURE_GEN_S ) )
texGenEnableMask[ i ] |= 1;
if ( gl.glIsEnabled( GL.GL_TEXTURE_GEN_T ) )
texGenEnableMask[ i ] |= 2;
if ( gl.glIsEnabled( GL.GL_TEXTURE_GEN_R ) )
texGenEnableMask[ i ] |= 4;
if ( gl.glIsEnabled( GL.GL_TEXTURE_GEN_Q ) )
texGenEnableMask[ i ] |= 8;
}
TextureUnitStateUnitPeer.selectServerTextureUnit( gl, oldSelectedServerTU, this, true );
ShapeAtomPeer.selectClientTextureUnit( gl, oldSelectedClientTU, this, true );
final long vertexAttribsEnableMask = 0L;
if ( OpenGlExtensions.GL_CUSTOM_VERTEX_ATTRIBUTES )
{
for ( int i = 0; i < glCaps.getMaxVertexAttributes(); i++ )
{
gl.glDisableVertexAttribArray( i );
}
}
byteBuffer.rewind();
gl.glGetBooleanv( GL.GL_COLOR_WRITEMASK, byteBuffer );
int colorWriteMask = 0;
if ( byteBuffer.get( 0 ) == 1 )
colorWriteMask |= 1;
if ( byteBuffer.get( 1 ) == 1 )
colorWriteMask |= 2;
if ( byteBuffer.get( 2 ) == 1 )
colorWriteMask |= 4;
if ( byteBuffer.get( 3 ) == 1 )
colorWriteMask |= 8;
byteBuffer.rewind();
gl.glGetBooleanv( GL.GL_DEPTH_WRITEMASK, byteBuffer );
boolean depthWriteMask = ( byteBuffer.get( 0 ) == 1 );
final int currentGLSLShaderProgram = GLSLShaderProgramStateUnitPeer.getCurrentShaderProgram( gl );
final boolean[] clipPlaneEnabled = new boolean[ 6 ];
for ( int i = 0; i < clipPlaneEnabled.length; i++ )
{
final int glPlane = RenderPeerImpl.translateClipPlaneIndex( i );
clipPlaneEnabled[ i ] = gl.glIsEnabled( glPlane );
}
final float[] color = new float[ 4 ];
floatBuffer.rewind();
gl.glGetFloatv( GL.GL_CURRENT_COLOR, floatBuffer );
color[ 0 ] = floatBuffer.get(); color[ 1 ] = floatBuffer.get(); color[ 2 ] = floatBuffer.get(); color[ 3 ] = 1f - floatBuffer.get();
final boolean[] lightEnabled = new boolean[]
{
gl.glIsEnabled( GL.GL_LIGHT0 ),
gl.glIsEnabled( GL.GL_LIGHT1 ),
gl.glIsEnabled( GL.GL_LIGHT2 ),
gl.glIsEnabled( GL.GL_LIGHT3 ),
gl.glIsEnabled( GL.GL_LIGHT4 ),
gl.glIsEnabled( GL.GL_LIGHT5 ),
gl.glIsEnabled( GL.GL_LIGHT6 ),
gl.glIsEnabled( GL.GL_LIGHT7 )
};
update( gl.glIsEnabled( GL.GL_VERTEX_ARRAY ),
gl.glIsEnabled( GL.GL_NORMAL_ARRAY ),
gl.glIsEnabled( GL.GL_COLOR_ARRAY ),
texCoordArrayEnabledMask,
texGenEnableMask,
texture1DEnabled,
texture2DEnabled,
texture3DEnabled,
textureCMEnabled,
vertexAttribsEnableMask,
oldSelectedServerTU,
oldSelectedClientTU,
this.maxUsedVertexAttrib,
colorWriteMask,
depthWriteMask,
( AssemblyShaderProgramStateUnitPeer.areARBShaderProgramsSupported( gl ) ? gl.glIsEnabled( GL.GL_VERTEX_PROGRAM_ARB ) : false ),
( AssemblyShaderProgramStateUnitPeer.areARBShaderProgramsSupported( gl ) ? gl.glIsEnabled( GL.GL_FRAGMENT_PROGRAM_ARB ) : false ),
currentGLSLShaderProgram,
gl.glIsEnabled( GL.GL_DEPTH_TEST ),
gl.glIsEnabled( GL.GL_ALPHA_TEST ),
gl.glIsEnabled( GL.GL_STENCIL_TEST ),
gl.glIsEnabled( GL.GL_SCISSOR_TEST ),
clipPlaneEnabled,
gl.glIsEnabled( GL.GL_BLEND ),
gl.glIsEnabled( GL.GL_POINT_SMOOTH ),
gl.glIsEnabled( GL.GL_LINE_STIPPLE ),
gl.glIsEnabled( GL.GL_LINE_SMOOTH ),
gl.glIsEnabled( GL.GL_POLYGON_SMOOTH ),
gl.glIsEnabled( GL.GL_POLYGON_OFFSET_POINT ),
gl.glIsEnabled( GL.GL_POLYGON_OFFSET_LINE ),
gl.glIsEnabled( GL.GL_POLYGON_OFFSET_FILL ),
gl.glIsEnabled( GL.GL_CULL_FACE ),
gl.glIsEnabled( GL.GL_NORMALIZE),
gl.glIsEnabled( GL.GL_COLOR_MATERIAL ),
gl.glIsEnabled( GL.GL_LIGHTING ),
lightEnabled,
gl.glIsEnabled( GL.GL_FOG ),
color
);
}
public OpenGLStatesCacheImpl()
{
super();
}
}