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/*
* Copyright 2005-2008 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;
import java.util.ArrayList;
import java.util.Map;
// XXXX : We should have a common Bin object that all other Bins extend from.
//class ShaderBin extends Object implements ObjectUpdate, NodeComponentUpdate {
class ShaderBin implements ObjectUpdate {
/**
* Node component dirty mask.
*/
static final int SHADER_PROGRAM_DIRTY = 0x1;
static final int SHADER_ATTRIBUTE_SET_DIRTY = 0x2;
/**
* The RenderBin for this object
*/
RenderBin renderBin = null;
/**
* The AttributeBin that this ShaderBin resides
*/
AttributeBin attributeBin = null;
/**
* The references to the next and previous ShaderBins in the
* list.
*/
ShaderBin next = null;
ShaderBin prev = null;
/**
* The list of TextureBins in this ShaderBin
*/
TextureBin textureBinList = null;
/**
* The list of TextureBins to be added for the next frame
*/
ArrayList addTextureBins = new ArrayList();
boolean onUpdateList = false;
int numEditingTextureBins = 0;
int componentDirty = 0;
ShaderAppearanceRetained shaderAppearance = null;
ShaderProgramRetained shaderProgram = null;
ShaderAttributeSetRetained shaderAttributeSet = new ShaderAttributeSetRetained();
ShaderBin(ShaderAppearanceRetained sApp, RenderBin rBin) {
reset(sApp, rBin);
}
void reset(ShaderAppearanceRetained sApp, RenderBin rBin) {
prev = null;
next = null;
renderBin = rBin;
attributeBin = null;
textureBinList = null;
onUpdateList = false;
numEditingTextureBins = 0;
addTextureBins.clear();
if(sApp != null) {
shaderProgram = sApp.shaderProgram;
shaderAttributeSet = sApp.shaderAttributeSet;
}
else {
shaderProgram = null;
shaderAttributeSet = null;
}
shaderAppearance = sApp;
}
void clear() {
reset(null, null);
}
/**
* This tests if the qiven ra.shaderProgram match this shaderProgram
*/
boolean equals(ShaderAppearanceRetained sApp) {
ShaderProgramRetained sp;
ShaderAttributeSetRetained ss;
if (sApp == null) {
sp = null;
ss = null;
} else {
sp = sApp.shaderProgram;
ss = sApp.shaderAttributeSet;
}
if((shaderProgram != sp) || (shaderAttributeSet != ss)) {
return false;
}
return true;
}
@Override
public void updateObject() {
TextureBin t;
int i;
if (addTextureBins.size() > 0) {
t = addTextureBins.get(0);
if (textureBinList == null) {
textureBinList = t;
}
else {
// Look for a TextureBin that has the same texture
insertTextureBin(t);
}
for (i = 1; i < addTextureBins.size() ; i++) {
t = addTextureBins.get(i);
// Look for a TextureBin that has the same texture
insertTextureBin(t);
}
}
addTextureBins.clear();
onUpdateList = false;
}
void insertTextureBin(TextureBin t) {
TextureBin tb;
TextureRetained texture = null;
if (t.texUnitState != null && t.texUnitState.length > 0) {
if (t.texUnitState[0] != null) {
texture = t.texUnitState[0].texture;
}
}
// use the texture in the first texture unit as the sorting criteria
if (texture != null) {
tb = textureBinList;
while (tb != null) {
if (tb.texUnitState == null || tb.texUnitState[0] == null ||
tb.texUnitState[0].texture != texture) {
tb = tb.next;
} else {
// put it here
t.next = tb;
t.prev = tb.prev;
if (tb.prev == null) {
textureBinList = t;
}
else {
tb.prev.next = t;
}
tb.prev = t;
return;
}
}
}
// Just put it up front
t.prev = null;
t.next = textureBinList;
textureBinList.prev = t;
textureBinList = t;
t.tbFlag &= ~TextureBin.RESORT;
}
/**
* reInsert textureBin if the first texture is different from
* the previous bin and different from the next bin
*/
void reInsertTextureBin(TextureBin tb) {
TextureRetained texture = null,
prevTexture = null,
nextTexture = null;
if (tb.texUnitState != null && tb.texUnitState[0] != null) {
texture = tb.texUnitState[0].texture;
}
if (tb.prev != null && tb.prev.texUnitState != null) {
prevTexture = tb.prev.texUnitState[0].texture;
}
if (texture != prevTexture) {
if (tb.next != null && tb.next.texUnitState != null) {
nextTexture = tb.next.texUnitState[0].texture;
}
if (texture != nextTexture) {
if (tb.prev != null && tb.next != null) {
tb.prev.next = tb.next;
tb.next.prev = tb.prev;
insertTextureBin(tb);
}
}
}
}
/**
* Adds the given TextureBin to this AttributeBin.
*/
void addTextureBin(TextureBin t, RenderBin rb, RenderAtom ra) {
t.environmentSet = this.attributeBin.environmentSet;
t.attributeBin = this.attributeBin;
t.shaderBin = this;
attributeBin.updateFromShaderBin(ra);
addTextureBins.add(t);
if (!onUpdateList) {
rb.objUpdateList.add(this);
onUpdateList = true;
}
}
/**
* Removes the given TextureBin from this ShaderBin.
*/
void removeTextureBin(TextureBin t) {
// If the TextureBin being remove is contained in addTextureBins,
// then remove the TextureBin from the addList
if (addTextureBins.contains(t)) {
addTextureBins.remove(addTextureBins.indexOf(t));
}
else {
if (t.prev == null) { // At the head of the list
textureBinList = t.next;
if (t.next != null) {
t.next.prev = null;
}
} else { // In the middle or at the end.
t.prev.next = t.next;
if (t.next != null) {
t.next.prev = t.prev;
}
}
}
t.shaderBin = null;
t.prev = null;
t.next = null;
t.clear();
if (textureBinList == null && addTextureBins.size() == 0 ) {
// Note: Removal of this shaderBin as a user of the rendering
// atttrs is done during removeRenderAtom() in RenderMolecule.java
attributeBin.removeShaderBin(this);
}
}
/**
* Renders this ShaderBin
*/
void render(Canvas3D cv) {
TextureBin tb;
// System.err.println("ShaderBin.render() shaderProgram = " + shaderProgram);
// include this ShaderBin to the to-be-updated list in canvas
cv.setStateToUpdate(Canvas3D.SHADERBIN_BIT, this);
tb = textureBinList;
while (tb != null) {
tb.render(cv);
tb = tb.next;
}
}
void updateAttributes(Canvas3D cv) {
// System.err.println("ShaderBin.updateAttributes() shaderProgram is " + shaderProgram);
if (shaderProgram != null) {
// Compile, link, and enable shader program
shaderProgram.updateNative(cv, true);
if (shaderAttributeSet != null) {
shaderAttributeSet.updateNative(cv, shaderProgram);
}
}
else {
if (cv.shaderProgram != null) {
// Disable shader program
cv.shaderProgram.updateNative(cv, false);
}
}
cv.shaderBin = this;
cv.shaderProgram = shaderProgram;
}
void updateNodeComponent() {
// System.err.println("ShaderBin.updateNodeComponent() ...");
// We don't need to clone shaderProgram.
// ShaderProgram object can't be modified once it is live,
// so each update should be a new reference.
if ((componentDirty & SHADER_PROGRAM_DIRTY) != 0) {
// System.err.println(" - SHADER_PROGRAM_DIRTY");
shaderProgram = shaderAppearance.shaderProgram;
}
// We need to clone the shaderAttributeSet.
if ((componentDirty & SHADER_ATTRIBUTE_SET_DIRTY) != 0) {
// System.err.println(" - SHADER_ATTRIBUTE_SET_DIRTY");
Map attrs = shaderAttributeSet.getAttrs();
attrs.clear();
if(shaderAppearance.shaderAttributeSet != null) {
attrs.putAll(shaderAppearance.shaderAttributeSet.getAttrs());
}
}
componentDirty = 0;
}
void incrActiveTextureBin() {
numEditingTextureBins++;
}
void decrActiveTextureBin() {
numEditingTextureBins--;
}
}
