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/*
* Copyright 2004-2008 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*/
package javax.media.j3d;
/**
* The GLSLShaderProgram object is a concrete implementation of a
* ShaderProgram node component for the OpenGL GLSL shading language.
*
* @see SourceCodeShader
*
* @since Java 3D 1.4
*/
public class GLSLShaderProgram extends ShaderProgram {
/**
* Constructs a GLSL shader program node component.
*
* <br>
* TODO: ADD MORE DOCUMENTATION HERE.
*/
public GLSLShaderProgram() {
}
// Implement abstract setVertexAttrNames method (inherit javadoc from parent class)
@Override
public void setVertexAttrNames(String[] vertexAttrNames) {
checkForLiveOrCompiled();
if (vertexAttrNames != null) {
for (int i = 0; i < vertexAttrNames.length; i++) {
if (vertexAttrNames[i] == null) {
throw new NullPointerException();
}
}
}
((GLSLShaderProgramRetained)this.retained).setVertexAttrNames(vertexAttrNames);
}
// Implement abstract getVertexAttrNames method (inherit javadoc from parent class)
@Override
public String[] getVertexAttrNames() {
if (isLiveOrCompiled()) {
if(!this.getCapability(ALLOW_NAMES_READ)) {
throw new CapabilityNotSetException(J3dI18N.getString("GLSLShaderProgram0"));
}
}
return ((GLSLShaderProgramRetained)this.retained).getVertexAttrNames();
}
// Implement abstract setShaderAttrNames method (inherit javadoc from parent class)
@Override
public void setShaderAttrNames(String[] shaderAttrNames) {
checkForLiveOrCompiled();
if (shaderAttrNames != null) {
for (int i = 0; i < shaderAttrNames.length; i++) {
if (shaderAttrNames[i] == null) {
throw new NullPointerException();
}
}
}
((GLSLShaderProgramRetained)this.retained).setShaderAttrNames(shaderAttrNames);
}
// Implement abstract getShaderAttrNames method (inherit javadoc from parent class)
@Override
public String[] getShaderAttrNames() {
if (isLiveOrCompiled()) {
if(!this.getCapability(ALLOW_NAMES_READ)) {
throw new CapabilityNotSetException(J3dI18N.getString("GLSLShaderProgram0"));
}
}
return ((GLSLShaderProgramRetained)this.retained).getShaderAttrNames();
}
/**
* Copies the specified array of shaders into this shader
* program. This method makes a shallow copy of the array. The
* array of shaders may be null or empty (0 length), but the
* elements of the array must be non-null. The shading language of
* each shader in the array must be
* <code>SHADING_LANGUAGE_GLSL</code>. Each shader in the array must
* be a SourceCodeShader.
*
* @param shaders array of Shader objects to be copied into this
* ShaderProgram
*
* @exception CapabilityNotSetException if appropriate capability is
* not set and this object is part of live or compiled scene graph
*
* @exception IllegalArgumentException if the shading language of
* any shader in the shaders array is <em>not</em>
* <code>SHADING_LANGUAGE_GLSL</code>.
*
* @exception ClassCastException if any shader in the shaders
* array is <em>not</em> a SourceCodeShader.
*
* @exception NullPointerException if any element in the
* shaders array is null.
*/
@Override
public void setShaders(Shader[] shaders) {
checkForLiveOrCompiled();
if(shaders != null) {
// Check shaders for valid shading language and class type
for (int i = 0; i < shaders.length; i++) {
if (shaders[i].getShadingLanguage() != Shader.SHADING_LANGUAGE_GLSL) {
throw new IllegalArgumentException(J3dI18N.getString("GLSLShaderProgram2"));
}
// Try to cast shader to SourceCodeShader; it will throw
// ClassCastException if it isn't.
SourceCodeShader shad = (SourceCodeShader)shaders[i];
}
}
((GLSLShaderProgramRetained)this.retained).setShaders(shaders);
}
// Implement abstract getShaders method (inherit javadoc from parent class)
@Override
public Shader[] getShaders() {
if (isLiveOrCompiled()) {
if(!this.getCapability(ALLOW_SHADERS_READ)) {
throw new CapabilityNotSetException(J3dI18N.getString("GLSLShaderProgram1"));
}
}
return ((GLSLShaderProgramRetained)this.retained).getShaders();
}
/**
* Creates a retained mode GLSLShaderProgramRetained object that this
* GLSLShaderProgram component object will point to.
*/
@Override
void createRetained() {
this.retained = new GLSLShaderProgramRetained();
this.retained.setSource(this);
}
}
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