/**
* 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.IntBuffer;
import javax.media.opengl.GL;
import org.jagatoo.logging.ProfileTimer;
import org.openmali.vecmath2.Vector4f;
import org.xith3d.render.CanvasPeer;
import org.xith3d.render.OpenGLStatesCache;
import org.xith3d.render.SceneGraphOpenGLReference;
import org.xith3d.render.SceneGraphOpenGLReferences;
import org.xith3d.render.RenderPeer.RenderMode;
import org.xith3d.scenegraph.AssemblyFragmentShader;
import org.xith3d.scenegraph.AssemblyShaderProgram;
import org.xith3d.scenegraph.AssemblyShaderProgramContext;
import org.xith3d.scenegraph.AssemblyVertexShader;
import org.xith3d.scenegraph._SG_PrivilegedAccess;
import org.xith3d.utility.logging.X3DLog;
import com.sun.opengl.util.BufferUtil;
/**
* @author Abdul Bezrati
* @author Lilian Chamontin [jsr231 port]
* @author Marvin Froehlich (aka Qudus)
*/
public class AssemblyShaderProgramStateUnitPeer
{
private static final IntBuffer tmpIntBuffer = BufferUtil.newIntBuffer( 1 );
private static final IntBuffer handleBuffer = BufferUtil.newIntBuffer( 1 );
private static SceneGraphOpenGLReferences.Provider shaderProgramNameProvider = new SceneGraphOpenGLReferences.Provider()
{
public SceneGraphOpenGLReference newReference( CanvasPeer canvasPeer, SceneGraphOpenGLReferences references, int numNamesPerContext )
{
return ( new SceneGraphOpenGLReference( canvasPeer, references, numNamesPerContext )
{
@Override
public void prepareObjectForDestroy()
{
SceneGraphOpenGLReference ref = getReferences().removeReference( getContext().getCanvasID() );
( (CanvasPeerImplBase)getContext() ).addDestroyableObject( ref );
}
@Override
public void destroyObject( int index, int name )
{
final GL gl = ( (CanvasPeerImplBase)getContext() ).getGL();
tmpIntBuffer.clear();
tmpIntBuffer.put( name );
tmpIntBuffer.rewind();
gl.glDeleteProgramsARB( 1, tmpIntBuffer );
}
} );
}
};
private static boolean ARB_shader_programs_supported = false;
private static boolean checkedOnce = false;
private static final void checkOnce( GL gl )
{
String extensions = gl.glGetString( GL.GL_EXTENSIONS );
if ( ( extensions.indexOf( "GL_ARB_vertex_program" ) != -1 ) && ( extensions.indexOf( "GL_ARB_fragment_program" ) != -1 ) )
ARB_shader_programs_supported = true;
checkedOnce = true;
if ( !ARB_shader_programs_supported )
{
//javax.swing.JOptionPane.showMessageDialog( null, "No Vertex/Fragment shaders support, skipping", "Error", javax.swing.JOptionPane.ERROR_MESSAGE );
//X3DLog.debug( "No Fragment Program support, skipping" );
}
}
protected static final boolean areARBShaderProgramsSupported( GL gl )
{
if ( !checkedOnce )
checkOnce( gl );
return ( ARB_shader_programs_supported );
}
private static final void defineVertexProgram( GL gl, AssemblyVertexShader shaderProgram, SceneGraphOpenGLReference openGLRef )
{
handleBuffer.rewind();
gl.glGenProgramsARB( 1, handleBuffer );
final int spHandle = handleBuffer.get();
openGLRef.setName( spHandle );
gl.glBindProgramARB( GL.GL_VERTEX_PROGRAM_ARB, spHandle );
gl.glProgramStringARB( GL.GL_VERTEX_PROGRAM_ARB, GL.GL_PROGRAM_FORMAT_ASCII_ARB, shaderProgram.getShaderCode().length(), shaderProgram.getShaderCode() );
String programErrorString = gl.glGetString( GL.GL_PROGRAM_ERROR_STRING_ARB );
handleBuffer.rewind();
gl.glGetIntegerv( GL.GL_PROGRAM_ERROR_POSITION_ARB, handleBuffer );
int errorPos = handleBuffer.get();
if ( errorPos != -1 )
{
//javax.swing.JOptionPane.showMessageDialog( null, "Error String:" + programErrorString, "Error", javax.swing.JOptionPane.ERROR_MESSAGE );
System.err.println( "VP Error String:" + programErrorString );
}
X3DLog.debug( "Binding Shader Program to handle ", spHandle );
}
private static final void defineFragmentProgram( GL gl, AssemblyFragmentShader shaderProgram, SceneGraphOpenGLReference openGLRef )
{
handleBuffer.clear();
//handleBuffer.rewind();
gl.glGenProgramsARB( 1, handleBuffer );
final int spHandle = handleBuffer.get();
openGLRef.setName( spHandle );
gl.glBindProgramARB( GL.GL_FRAGMENT_PROGRAM_ARB, spHandle );
gl.glProgramStringARB( GL.GL_FRAGMENT_PROGRAM_ARB, GL.GL_PROGRAM_FORMAT_ASCII_ARB, shaderProgram.getShaderCode().length(), shaderProgram.getShaderCode() );
String programErrorString = gl.glGetString( GL.GL_PROGRAM_ERROR_STRING_ARB );
IntBuffer errorPos = BufferUtil.newIntBuffer( 1 );
gl.glGetIntegerv( GL.GL_PROGRAM_ERROR_POSITION_ARB, errorPos );
if ( errorPos.get() != -1 )
{
//javax.swing.JOptionPane.showMessageDialog( null, "Error String:" + programErrorString, "Error", javax.swing.JOptionPane.ERROR_MESSAGE );
System.err.println( "FP Error String:" + programErrorString );
}
X3DLog.debug( "Binding Shader Program to handle ", spHandle );
}
private static final void bindVertexProgram( GL gl, OpenGLStatesCache statesCache, AssemblyVertexShader shaderProgram, CanvasPeer canvasPeer )
{
final SceneGraphOpenGLReference openGLRef = shaderProgram.getOpenGLReferences().getReference( canvasPeer, shaderProgramNameProvider );
if ( !statesCache.enabled || !statesCache.assemblyVertexShadersEnabled )
{
gl.glEnable( GL.GL_VERTEX_PROGRAM_ARB );
statesCache.assemblyVertexShadersEnabled = true;
}
int spHandle = openGLRef.getName();
if ( ( spHandle != -1 ) && _SG_PrivilegedAccess.isDirty( shaderProgram ) )
{
handleBuffer.rewind();
handleBuffer.put( spHandle );
handleBuffer.rewind();
gl.glDeleteProgramsARB( 1, handleBuffer );
_SG_PrivilegedAccess.setDirty( shaderProgram, false );
spHandle = openGLRef.deleteName();
}
if ( spHandle != -1 )
{
X3DLog.debug( "Already cached, so binding Shader Program" );
gl.glBindProgramARB( GL.GL_VERTEX_PROGRAM_ARB, spHandle );
}
else
{
defineVertexProgram( gl, shaderProgram, openGLRef );
}
final Vector4f[] parameters = shaderProgram.getParameters();
if ( parameters != null )
{
for ( int i = 0; i < parameters.length; i++ )
{
gl.glProgramEnvParameter4fARB( GL.GL_VERTEX_PROGRAM_ARB, i, parameters[ i ].getX(), parameters[ i ].getY(), parameters[ i ].getZ(), parameters[ i ].getW() );
}
}
}
private static final void bindFragmentProgram( GL gl, OpenGLStatesCache statesCache, AssemblyFragmentShader shaderProgram, CanvasPeer canvasPeer )
{
final SceneGraphOpenGLReference openGLRef = shaderProgram.getOpenGLReferences().getReference( canvasPeer, shaderProgramNameProvider );
if ( !statesCache.enabled || !statesCache.assemblyFragmentShadersEnabled )
{
gl.glEnable( GL.GL_FRAGMENT_PROGRAM_ARB );
statesCache.assemblyFragmentShadersEnabled = true;
}
int spHandle = openGLRef.getName();
if ( ( spHandle != -1 ) && _SG_PrivilegedAccess.isDirty( shaderProgram ) )
{
handleBuffer.clear();
//handleBuffer.rewind();
handleBuffer.put( spHandle );
handleBuffer.rewind();
gl.glDeleteProgramsARB( 1, handleBuffer );
_SG_PrivilegedAccess.setDirty( shaderProgram, false );
spHandle = openGLRef.deleteName();
}
if ( spHandle != -1 )
{
X3DLog.debug( "Already cached, so binding Shader Program" );
gl.glBindProgramARB( GL.GL_FRAGMENT_PROGRAM_ARB, spHandle );
}
else
{
defineFragmentProgram( gl, shaderProgram, openGLRef );
}
final Vector4f[] parameters = shaderProgram.getParameters();
if ( parameters != null )
{
for ( int i = 0; i < parameters.length; i++ )
{
gl.glProgramEnvParameter4fARB( GL.GL_FRAGMENT_PROGRAM_ARB, i, parameters[ i ].getX(), parameters[ i ].getY(), parameters[ i ].getZ(), parameters[ i ].getW() );
}
}
}
private static final void setVertexProgramState( GL gl, OpenGLStatesCache statesCache, AssemblyVertexShader shaderProgram, CanvasPeer canvasPeer )
{
if ( !checkedOnce )
{
checkOnce( gl );
}
if ( ARB_shader_programs_supported )
{
if ( shaderProgram == null || !shaderProgram.isEnabled() || shaderProgram.getShaderCode() == null )
{
if ( !statesCache.enabled || statesCache.assemblyVertexShadersEnabled )
{
gl.glDisable( GL.GL_VERTEX_PROGRAM_ARB );
statesCache.assemblyVertexShadersEnabled = false;
}
}
else //if ( shaderProgram.getType() == ShaderType.VERTEX )
{
bindVertexProgram( gl, statesCache, shaderProgram, canvasPeer );
}
}
}
private static final void setFragmentProgramState( GL gl, OpenGLStatesCache statesCache, AssemblyFragmentShader shaderProgram, CanvasPeer canvasPeer )
{
if ( !checkedOnce )
{
checkOnce( gl );
}
if ( ARB_shader_programs_supported )
{
if ( shaderProgram == null || !shaderProgram.isEnabled() || shaderProgram.getShaderCode() == null )
{
if ( !statesCache.enabled || statesCache.assemblyFragmentShadersEnabled )
{
gl.glDisable( GL.GL_FRAGMENT_PROGRAM_ARB );
statesCache.assemblyFragmentShadersEnabled = false;
}
}
else //if ( shaderProgram.getType() == ShaderType.FRAGMENT )
{
bindFragmentProgram( gl, statesCache, shaderProgram, canvasPeer );
}
}
}
protected static final void disableAssemblyShaders( GL gl, OpenGLStatesCache statesCache )
{
if ( statesCache.enabled && ( !statesCache.assemblyVertexShadersEnabled && !statesCache.assemblyFragmentShadersEnabled ) )
return;
if ( !checkedOnce )
{
checkOnce( gl );
}
if ( ARB_shader_programs_supported )
{
gl.glDisable( GL.GL_VERTEX_PROGRAM_ARB );
gl.glDisable( GL.GL_FRAGMENT_PROGRAM_ARB );
}
statesCache.assemblyVertexShadersEnabled = false;
statesCache.assemblyFragmentShadersEnabled = false;
}
public static final void apply( Object glObj, AssemblyShaderProgramContext shaderProgram, CanvasPeer canvasPeer, OpenGLStatesCache statesCache, RenderMode renderMode )
{
ProfileTimer.startProfile( X3DLog.LOG_CHANNEL, "ShaderProgramPeer::apply()" );
final GL gl = (GL)glObj;
if ( ( renderMode == RenderMode.NORMAL ) && ( shaderProgram.isEnabled() ) )
{
final AssemblyShaderProgram program = shaderProgram.getProgram();
AssemblyVertexShader vertexProgram = null;
if ( program.getNumVertexShaders() > 0 )
vertexProgram = (AssemblyVertexShader)program.getVertexShader( 0 );
AssemblyFragmentShader fragmentProgram = null;
if ( program.getNumFragmentShaders() > 0 )
fragmentProgram = (AssemblyFragmentShader)program.getFragmentShader( 0 );
setVertexProgramState( gl, statesCache, vertexProgram, canvasPeer );
setFragmentProgramState( gl, statesCache, fragmentProgram, canvasPeer );
}
else
{
disableAssemblyShaders( gl, statesCache );
}
ProfileTimer.endProfile();
}
}