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/*
* Copyright (c) 2009-2022 jMonkeyEngine
* All rights reserved.
*
* 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 'jMonkeyEngine' 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) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jme3.material.plugins;
import com.jme3.asset.*;
import com.jme3.material.*;
import com.jme3.material.RenderState.BlendEquation;
import com.jme3.material.RenderState.BlendMode;
import com.jme3.material.RenderState.FaceCullMode;
import com.jme3.material.TechniqueDef.LightMode;
import com.jme3.material.TechniqueDef.ShadowMode;
import com.jme3.material.logic.*;
import com.jme3.math.ColorRGBA;
import com.jme3.math.Vector2f;
import com.jme3.math.Vector3f;
import com.jme3.shader.*;
import com.jme3.texture.Texture;
import com.jme3.texture.Texture2D;
import com.jme3.texture.image.ColorSpace;
import com.jme3.util.PlaceholderAssets;
import com.jme3.util.blockparser.BlockLanguageParser;
import com.jme3.util.blockparser.Statement;
import com.jme3.util.clone.Cloner;
import jme3tools.shader.Preprocessor;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class J3MLoader implements AssetLoader {
private static final Logger logger = Logger.getLogger(J3MLoader.class.getName());
// private ErrorLogger errors;
private ShaderNodeLoaderDelegate nodesLoaderDelegate;
boolean isUseNodes = false;
int langSize = 0;
private AssetManager assetManager;
private AssetKey key;
private MaterialDef materialDef;
private Material material;
private TechniqueDef technique;
private RenderState renderState;
final private ArrayList presetDefines = new ArrayList<>();
final private List> shaderLanguages;
final private EnumMap shaderNames;
private static final String whitespacePattern = "\\p{javaWhitespace}+";
public J3MLoader() {
shaderLanguages = new ArrayList<>();// EnumMap<>(Shader.ShaderType.class);
shaderNames = new EnumMap<>(Shader.ShaderType.class);
}
// :
private void readShaderStatement(String statement) throws IOException {
String[] split = statement.split(":");
if (split.length != 2) {
throw new IOException("Shader statement syntax incorrect" + statement);
}
String[] typeAndLang = split[0].split(whitespacePattern);
for (Shader.ShaderType shaderType : Shader.ShaderType.values()) {
if (typeAndLang[0].equals(shaderType.toString() + "Shader")) {
readShaderDefinition(shaderType, split[1].trim(), Arrays.copyOfRange(typeAndLang, 1, typeAndLang.length));
}
}
}
private void readShaderDefinition(Shader.ShaderType shaderType, String name, String... languages) {
shaderNames.put(shaderType, name);
if (langSize != 0 && langSize != languages.length) {
throw new AssetLoadException("Technique " + technique.getName() + " must have the same number of languages for each shader type.");
}
langSize = languages.length;
for (int i = 0; i < languages.length; i++) {
if (i >= shaderLanguages.size()) {
shaderLanguages.add(new EnumMap(Shader.ShaderType.class));
}
shaderLanguages.get(i).put(shaderType, languages[i]);
}
}
// LightMode
private void readLightMode(String statement) throws IOException{
String[] split = statement.split(whitespacePattern);
if (split.length != 2){
throw new IOException("LightMode statement syntax incorrect");
}
LightMode lm = LightMode.valueOf(split[1]);
technique.setLightMode(lm);
}
// LightMode
private void readLightSpace(String statement) throws IOException{
String[] split = statement.split(whitespacePattern);
if (split.length != 2){
throw new IOException("LightSpace statement syntax incorrect");
}
TechniqueDef.LightSpace ls = TechniqueDef.LightSpace.valueOf(split[1]);
technique.setLightSpace(ls);
}
// ShadowMode
private void readShadowMode(String statement) throws IOException{
String[] split = statement.split(whitespacePattern);
if (split.length != 2){
throw new IOException("ShadowMode statement syntax incorrect");
}
ShadowMode sm = ShadowMode.valueOf(split[1]);
technique.setShadowMode(sm);
}
private List tokenizeTextureValue(final String value) {
final List matchList = new ArrayList<>();
final Pattern regex = Pattern.compile("[^\\s\"']+|\"([^\"]*)\"|'([^']*)'");
final Matcher regexMatcher = regex.matcher(value.trim());
while (regexMatcher.find()) {
if (regexMatcher.group(1) != null) {
matchList.add(regexMatcher.group(1));
} else if (regexMatcher.group(2) != null) {
matchList.add(regexMatcher.group(2));
} else {
matchList.add(regexMatcher.group());
}
}
return matchList;
}
private List parseTextureOptions(final List values) {
final List matchList = new ArrayList<>();
if (values.isEmpty() || values.size() == 1) {
return matchList;
}
// Loop through all but the last value, the last one is going to be the path.
for (int i = 0; i < values.size() - 1; i++) {
final String value = values.get(i);
final TextureOption textureOption = TextureOption.getTextureOption(value);
if (textureOption == null && !value.contains("\\") && !value.contains("/") && !values.get(0).equals("Flip") && !values.get(0).equals("Repeat")) {
logger.log(Level.WARNING, "Unknown texture option \"{0}\" encountered for \"{1}\" in material \"{2}\"", new Object[]{value, key, material.getKey().getName()});
} else if (textureOption != null){
final String option = textureOption.getOptionValue(value);
matchList.add(new TextureOptionValue(textureOption, option));
}
}
return matchList;
}
private boolean isTexturePathDeclaredTheTraditionalWay(final List optionValues, final String texturePath) {
final boolean startsWithOldStyle = texturePath.startsWith("Flip Repeat ") || texturePath.startsWith("Flip ") ||
texturePath.startsWith("Repeat ") || texturePath.startsWith("Repeat Flip ");
if (!startsWithOldStyle) {
return false;
}
if (optionValues.size() == 1 && (optionValues.get(0).textureOption == TextureOption.Flip || optionValues.get(0).textureOption == TextureOption.Repeat)) {
return true;
} else if (optionValues.size() == 2 && optionValues.get(0).textureOption == TextureOption.Flip && optionValues.get(1).textureOption == TextureOption.Repeat) {
return true;
} else if (optionValues.size() == 2 && optionValues.get(0).textureOption == TextureOption.Repeat && optionValues.get(1).textureOption == TextureOption.Flip) {
return true;
}
return false;
}
private Texture parseTextureType(final VarType type, final String value) {
final List textureValues = tokenizeTextureValue(value);
final List textureOptionValues = parseTextureOptions(textureValues);
TextureKey textureKey = null;
// If there is only one token on the value, it must be the path to the texture.
if (textureValues.size() == 1) {
textureKey = new TextureKey(textureValues.get(0), false);
textureKey.setGenerateMips(true);
} else {
String texturePath = value.trim();
// If there are no valid "new" texture options specified but the path is split into several parts, lets parse the old way.
if (isTexturePathDeclaredTheTraditionalWay(textureOptionValues, texturePath)) {
boolean flipY = false;
if (texturePath.startsWith("Flip Repeat ") || texturePath.startsWith("Repeat Flip ")) {
texturePath = texturePath.substring(12).trim();
flipY = true;
} else if (texturePath.startsWith("Flip ")) {
texturePath = texturePath.substring(5).trim();
flipY = true;
} else if (texturePath.startsWith("Repeat ")) {
texturePath = texturePath.substring(7).trim();
}
// Support path starting with quotes (double and single)
if (texturePath.startsWith("\"") || texturePath.startsWith("'")) {
texturePath = texturePath.substring(1);
}
// Support path ending with quotes (double and single)
if (texturePath.endsWith("\"") || texturePath.endsWith("'")) {
texturePath = texturePath.substring(0, texturePath.length() - 1);
}
textureKey = new TextureKey(texturePath, flipY);
}
if (textureKey == null) {
textureKey = new TextureKey(textureValues.get(textureValues.size() - 1), false);
}
textureKey.setGenerateMips(true);
// Apply texture options to the texture key
if (!textureOptionValues.isEmpty()) {
for (final TextureOptionValue textureOptionValue : textureOptionValues) {
textureOptionValue.applyToTextureKey(textureKey);
}
}
}
switch (type) {
case Texture3D:
textureKey.setTextureTypeHint(Texture.Type.ThreeDimensional);
break;
case TextureArray:
textureKey.setTextureTypeHint(Texture.Type.TwoDimensionalArray);
break;
case TextureCubeMap:
textureKey.setTextureTypeHint(Texture.Type.CubeMap);
break;
}
Texture texture;
try {
texture = assetManager.loadTexture(textureKey);
} catch (AssetNotFoundException ex){
logger.log(Level.WARNING, "Cannot locate {0} for material {1}", new Object[]{textureKey, key});
texture = null;
}
if (texture == null){
texture = new Texture2D(PlaceholderAssets.getPlaceholderImage(assetManager));
texture.setKey(textureKey);
texture.setName(textureKey.getName());
}
// Apply texture options to the texture
if (!textureOptionValues.isEmpty()) {
for (final TextureOptionValue textureOptionValue : textureOptionValues) {
textureOptionValue.applyToTexture(texture);
}
}
return texture;
}
private Object readValue(final VarType type, final String value) throws IOException{
if (type.isTextureType()) {
return parseTextureType(type, value);
} else {
String[] split = value.trim().split(whitespacePattern);
switch (type){
case Float:
if (split.length != 1){
throw new IOException("Float value parameter must have 1 entry: " + value);
}
return Float.parseFloat(split[0]);
case Vector2:
if (split.length != 2){
throw new IOException("Vector2 value parameter must have 2 entries: " + value);
}
return new Vector2f(Float.parseFloat(split[0]),
Float.parseFloat(split[1]));
case Vector3:
if (split.length != 3){
throw new IOException("Vector3 value parameter must have 3 entries: " + value);
}
return new Vector3f(Float.parseFloat(split[0]),
Float.parseFloat(split[1]),
Float.parseFloat(split[2]));
case Vector4:
if (split.length != 4){
throw new IOException("Vector4 value parameter must have 4 entries: " + value);
}
return new ColorRGBA(Float.parseFloat(split[0]),
Float.parseFloat(split[1]),
Float.parseFloat(split[2]),
Float.parseFloat(split[3]));
case Int:
if (split.length != 1){
throw new IOException("Int value parameter must have 1 entry: " + value);
}
return Integer.parseInt(split[0]);
case Boolean:
if (split.length != 1){
throw new IOException("Boolean value parameter must have 1 entry: " + value);
}
return Boolean.parseBoolean(split[0]);
default:
throw new UnsupportedOperationException("Unknown type: "+type);
}
}
}
// [ "(" ")" ] [-LINEAR] [ ":" ]
private void readParam(String statement) throws IOException{
String name;
String defaultVal = null;
ColorSpace colorSpace = null;
String[] split = statement.split(":");
// Parse default val
if (split.length == 1){
// Doesn't contain default value
}else{
if (split.length != 2){
throw new IOException("Parameter statement syntax incorrect");
}
statement = split[0].trim();
defaultVal = split[1].trim();
}
if (statement.endsWith("-LINEAR")) {
colorSpace = ColorSpace.Linear;
statement = statement.substring(0, statement.length() - "-LINEAR".length());
}
// Parse ffbinding
int startParen = statement.indexOf("(");
if (startParen != -1){
// get content inside parentheses
int endParen = statement.indexOf(")", startParen);
String bindingStr = statement.substring(startParen+1, endParen).trim();
// don't care about bindingStr
statement = statement.substring(0, startParen);
}
// Parse type + name
split = statement.split(whitespacePattern);
if (split.length != 2){
throw new IOException("Parameter statement syntax incorrect");
}
VarType type;
if (split[0].equals("Color")){
type = VarType.Vector4;
}else{
type = VarType.valueOf(split[0]);
}
name = split[1];
Object defaultValObj = null;
if (defaultVal != null){
defaultValObj = readValue(type, defaultVal);
}
if(type.isTextureType()){
materialDef.addMaterialParamTexture(type, name, colorSpace,(Texture)defaultValObj);
}else{
materialDef.addMaterialParam(type, name, defaultValObj);
}
}
private void readValueParam(String statement) throws IOException{
// Use limit=1 in case the filename contains colons.
String[] split = statement.split(":", 2);
if (split.length != 2){
throw new IOException("Value parameter statement syntax incorrect");
}
String name = split[0].trim();
// parse value
MatParam p = material.getMaterialDef().getMaterialParam(name);
if (p == null){
throw new IOException("The material parameter: "+name+" is undefined.");
}
Object valueObj = readValue(p.getVarType(), split[1]);
if (p.getVarType().isTextureType()){
material.setTextureParam(name, p.getVarType(), (Texture) valueObj);
}else{
material.setParam(name, p.getVarType(), valueObj);
}
}
private void readMaterialParams(List paramsList) throws IOException{
for (Statement statement : paramsList){
readParam(statement.getLine());
}
}
private void readExtendingMaterialParams(List paramsList) throws IOException{
for (Statement statement : paramsList){
readValueParam(statement.getLine());
}
}
private void readWorldParams(List worldParams) throws IOException{
for (Statement statement : worldParams){
technique.addWorldParam(statement.getLine());
}
}
private boolean parseBoolean(String word) {
switch (word) {
case "On":
return true;
case "Off":
return false;
default:
throw new IllegalArgumentException();
}
}
private void readRenderStateStatement(Statement statement) throws IOException{
String[] split = statement.getLine().split(whitespacePattern);
if (split[0].equals("Wireframe")){
renderState.setWireframe(parseBoolean(split[1]));
}else if (split[0].equals("FaceCull")){
renderState.setFaceCullMode(FaceCullMode.valueOf(split[1]));
}else if (split[0].equals("DepthWrite")){
renderState.setDepthWrite(parseBoolean(split[1]));
}else if (split[0].equals("DepthTest")){
renderState.setDepthTest(parseBoolean(split[1]));
}else if (split[0].equals("Blend")){
renderState.setBlendMode(BlendMode.valueOf(split[1]));
}else if (split[0].equals("BlendEquation")){
renderState.setBlendEquation(BlendEquation.valueOf(split[1]));
}else if (split[0].equals("BlendEquationAlpha")){
renderState.setBlendEquationAlpha(RenderState.BlendEquationAlpha.valueOf(split[1]));
}else if (split[0].equals("AlphaTestFalloff")){
// ignore for backwards compatibility
}else if (split[0].equals("PolyOffset")){
float factor = Float.parseFloat(split[1]);
float units = Float.parseFloat(split[2]);
renderState.setPolyOffset(factor, units);
}else if (split[0].equals("ColorWrite")){
renderState.setColorWrite(parseBoolean(split[1]));
}else if (split[0].equals("PointSprite")){
// ignore for backwards compatibility
}else if (split[0].equals("DepthFunc")){
renderState.setDepthFunc(RenderState.TestFunction.valueOf(split[1]));
}else if (split[0].equals("AlphaFunc")){
// ignore for backwards compatibility
}else if (split[0].equals("LineWidth")){
renderState.setLineWidth(Float.parseFloat(split[1]));
} else {
throw new MatParseException(null, split[0], statement);
}
}
private void readAdditionalRenderState(List renderStates) throws IOException{
renderState = material.getAdditionalRenderState();
for (Statement statement : renderStates){
readRenderStateStatement(statement);
}
renderState = null;
}
private void readRenderState(List renderStates) throws IOException{
renderState = new RenderState();
for (Statement statement : renderStates){
readRenderStateStatement(statement);
}
technique.setRenderState(renderState);
renderState = null;
}
private void readForcedRenderState(List renderStates) throws IOException{
renderState = new RenderState();
for (Statement statement : renderStates){
readRenderStateStatement(statement);
}
technique.setForcedRenderState(renderState);
renderState = null;
}
// [ ":" ]
private void readDefine(String statement) throws IOException{
String[] split = statement.split(":");
if (split.length == 1){
String defineName = split[0].trim();
presetDefines.add(defineName);
}else if (split.length == 2){
String defineName = split[0].trim();
String paramName = split[1].trim();
MatParam param = materialDef.getMaterialParam(paramName);
if (param == null) {
logger.log(Level.WARNING, "In technique ''{0}'':\n"
+ "Define ''{1}'' mapped to non-existent"
+ " material parameter ''{2}'', ignoring.",
new Object[]{technique.getName(), defineName, paramName});
return;
}
VarType paramType = param.getVarType();
technique.addShaderParamDefine(paramName, paramType, defineName);
}else{
throw new IOException("Define syntax incorrect");
}
}
private void readDefines(List defineList) throws IOException{
for (Statement statement : defineList){
readDefine(statement.getLine());
}
}
private void readTechniqueStatement(Statement statement) throws IOException{
String[] split = statement.getLine().split("[ \\{]");
if (split[0].equals("VertexShader") ||
split[0].equals("FragmentShader") ||
split[0].equals("GeometryShader") ||
split[0].equals("TessellationControlShader") ||
split[0].equals("TessellationEvaluationShader")) {
readShaderStatement(statement.getLine());
}else if (split[0].equals("LightMode")){
readLightMode(statement.getLine());
}else if (split[0].equals("LightSpace")){
readLightSpace(statement.getLine());
}else if (split[0].equals("ShadowMode")){
readShadowMode(statement.getLine());
}else if (split[0].equals("WorldParameters")){
readWorldParams(statement.getContents());
}else if (split[0].equals("RenderState")){
readRenderState(statement.getContents());
}else if (split[0].equals("ForcedRenderState")){
readForcedRenderState(statement.getContents());
}else if (split[0].equals("Defines")){
readDefines(statement.getContents());
} else if (split[0].equals("ShaderNodesDefinitions")) {
initNodesLoader();
if (isUseNodes) {
nodesLoaderDelegate.readNodesDefinitions(statement.getContents());
}
} else if (split[0].equals("VertexShaderNodes")) {
initNodesLoader();
if (isUseNodes) {
nodesLoaderDelegate.readVertexShaderNodes(statement.getContents());
}
} else if (split[0].equals("FragmentShaderNodes")) {
initNodesLoader();
if (isUseNodes) {
nodesLoaderDelegate.readFragmentShaderNodes(statement.getContents());
}
} else if (split[0].equals("NoRender")) {
technique.setNoRender(true);
} else {
throw new MatParseException(null, split[0], statement);
}
}
private void readTransparentStatement(String statement) throws IOException{
String[] split = statement.split(whitespacePattern);
if (split.length != 2){
throw new IOException("Transparent statement syntax incorrect");
}
material.setTransparent(parseBoolean(split[1]));
}
private static String createShaderPrologue(List presetDefines) {
DefineList dl = new DefineList(presetDefines.size());
for (int i = 0; i < presetDefines.size(); i++) {
dl.set(i, 1);
}
StringBuilder sb = new StringBuilder();
dl.generateSource(sb, presetDefines, null);
return sb.toString();
}
private void readTechnique(Statement techStat) throws IOException{
isUseNodes = false;
String[] split = techStat.getLine().split(whitespacePattern);
Cloner cloner = new Cloner();
String name;
if (split.length == 1) {
name = TechniqueDef.DEFAULT_TECHNIQUE_NAME;
} else if (split.length == 2) {
name = split[1];
} else {
throw new IOException("Technique statement syntax incorrect");
}
String techniqueUniqueName = materialDef.getAssetName() + "@" + name;
technique = new TechniqueDef(name, techniqueUniqueName.hashCode());
for (Statement statement : techStat.getContents()){
readTechniqueStatement(statement);
}
technique.setShaderPrologue(createShaderPrologue(presetDefines));
switch (technique.getLightMode()) {
case Disable:
technique.setLogic(new DefaultTechniqueDefLogic(technique));
break;
case MultiPass:
technique.setLogic(new MultiPassLightingLogic(technique));
break;
case SinglePass:
technique.setLogic(new SinglePassLightingLogic(technique));
break;
case StaticPass:
technique.setLogic(new StaticPassLightingLogic(technique));
break;
case SinglePassAndImageBased:
technique.setLogic(new SinglePassAndImageBasedLightingLogic(technique));
break;
default:
throw new IOException("Light mode not supported:" + technique.getLightMode());
}
List techniqueDefs = new ArrayList<>();
if(isUseNodes){
//used for caching later, the shader here is not a file.
// KIRILL 9/19/2015
// Not sure if this is needed anymore, since shader caching
// is now done by TechniqueDef.
technique.setShaderFile(technique.hashCode() + "", technique.hashCode() + "", "GLSL100", "GLSL100");
techniqueDefs.add(technique);
}else if (shaderNames.containsKey(Shader.ShaderType.Vertex) && shaderNames.containsKey(Shader.ShaderType.Fragment)) {
if (shaderLanguages.size() > 1) {
for (int i = 1; i < shaderLanguages.size(); i++) {
cloner.clearIndex();
TechniqueDef td = cloner.clone(technique);
td.setShaderFile(shaderNames, shaderLanguages.get(i));
techniqueDefs.add(td);
}
}
technique.setShaderFile(shaderNames, shaderLanguages.get(0));
techniqueDefs.add(technique);
} else {
technique = null;
shaderLanguages.clear();
shaderNames.clear();
presetDefines.clear();
langSize = 0;
logger.log(Level.WARNING, "Fixed function technique was ignored");
logger.log(Level.WARNING, "Fixed function technique ''{0}'' was ignored for material {1}",
new Object[]{name, key});
return;
}
for (TechniqueDef techniqueDef : techniqueDefs) {
materialDef.addTechniqueDef(techniqueDef);
}
technique = null;
langSize = 0;
shaderLanguages.clear();
shaderNames.clear();
presetDefines.clear();
}
private void loadFromRoot(List roots) throws IOException{
if (roots.size() == 2){
Statement exception = roots.get(0);
String line = exception.getLine();
if (line.startsWith("Exception")){
throw new AssetLoadException(line.substring("Exception ".length()));
}else{
throw new IOException("In multiroot material, expected first statement to be 'Exception'");
}
}else if (roots.size() != 1){
throw new IOException("Too many roots in J3M/J3MD file");
}
boolean extending = false;
Statement materialStat = roots.get(0);
String materialName = materialStat.getLine();
if (materialName.startsWith("MaterialDef")){
materialName = materialName.substring("MaterialDef ".length()).trim();
extending = false;
}else if (materialName.startsWith("Material")){
materialName = materialName.substring("Material ".length()).trim();
extending = true;
}else{
throw new IOException("Specified file is not a Material file");
}
String[] split = materialName.split(":", 2);
if (materialName.equals("")){
throw new MatParseException("Material name cannot be empty", materialStat);
}
if (split.length == 2){
if (!extending){
throw new MatParseException("Must use 'Material' when extending.", materialStat);
}
String extendedMat = split[1].trim();
MaterialDef def = assetManager.loadAsset(new AssetKey(extendedMat));
if (def == null) {
throw new MatParseException("Extended material " + extendedMat + " cannot be found.", materialStat);
}
material = new Material(def);
material.setKey(key);
material.setName(split[0].trim());
// material.setAssetName(fileName);
}else if (split.length == 1){
if (extending){
throw new MatParseException("Expected ':', got '{'", materialStat);
}
materialDef = new MaterialDef(assetManager, materialName);
// NOTE: pass the filename for defs, so they can be loaded later
materialDef.setAssetName(key.getName());
}else{
throw new MatParseException("Cannot use colon in material name/path", materialStat);
}
for (Statement statement : materialStat.getContents()){
split = statement.getLine().split("[ \\{]");
String statType = split[0];
if (extending){
if (statType.equals("MaterialParameters")){
readExtendingMaterialParams(statement.getContents());
}else if (statType.equals("AdditionalRenderState")){
readAdditionalRenderState(statement.getContents());
}else if (statType.equals("Transparent")){
readTransparentStatement(statement.getLine());
}
}else{
if (statType.equals("Technique")){
readTechnique(statement);
}else if (statType.equals("MaterialParameters")){
readMaterialParams(statement.getContents());
}else{
throw new MatParseException("Expected material statement, got '"+statType+"'", statement);
}
}
}
}
@Override
public Object load(AssetInfo info) throws IOException {
this.assetManager = info.getManager();
InputStream in = info.openStream();
try {
key = info.getKey();
if (key.getExtension().equals("j3m") && !(key instanceof MaterialKey)) {
throw new IOException("Material instances must be loaded via MaterialKey");
} else if (key.getExtension().equals("j3md") && key instanceof MaterialKey) {
throw new IOException("Material definitions must be loaded via AssetKey");
}
in = Preprocessor.apply(in);
loadFromRoot(BlockLanguageParser.parse(in));
} finally {
if (in != null){
in.close();
}
}
if (material != null){
// material implementation
return material;
}else{
// material definition
return materialDef;
}
}
public MaterialDef loadMaterialDef(List roots, AssetManager manager, AssetKey key) throws IOException {
this.key = key;
this.assetManager = manager;
loadFromRoot(roots);
return materialDef;
}
protected void initNodesLoader() {
if (!isUseNodes) {
isUseNodes = shaderNames.get(Shader.ShaderType.Vertex) == null && shaderNames.get(Shader.ShaderType.Fragment) == null;
if (isUseNodes) {
if (nodesLoaderDelegate == null) {
nodesLoaderDelegate = new ShaderNodeLoaderDelegate();
}else{
nodesLoaderDelegate.clear();
}
nodesLoaderDelegate.setTechniqueDef(technique);
nodesLoaderDelegate.setMaterialDef(materialDef);
nodesLoaderDelegate.setAssetManager(assetManager);
}
}
}
/**
* Texture options allow you to specify how a texture should be initialized by including an option before
* the path to the texture in the .j3m file.
*
* This would apply a minification filter of "Trilinear", a magnification filter of "Bilinear" and set the wrap mode to "Repeat".
*
* Note: If several filters of the same type are added, eg. MinTrilinear MinNearestLinearMipMap, the last one will win.
*
*/
private enum TextureOption {
/**
* Applies a {@link com.jme3.texture.Texture.MinFilter} to the texture.
*/
Min {
@Override
public void applyToTextureKey(final String option, final TextureKey textureKey) {
Texture.MinFilter minFilter = Texture.MinFilter.valueOf(option);
textureKey.setGenerateMips(minFilter.usesMipMapLevels());
}
@Override
public void applyToTexture(final String option, final Texture texture) {
texture.setMinFilter(Texture.MinFilter.valueOf(option));
}
},
/**
* Applies a {@link com.jme3.texture.Texture.MagFilter} to the texture.
*/
Mag {
@Override
public void applyToTexture(final String option, final Texture texture) {
texture.setMagFilter(Texture.MagFilter.valueOf(option));
}
},
/**
* Applies a {@link com.jme3.texture.Texture.WrapMode} to the texture. This also supports {@link com.jme3.texture.Texture.WrapAxis}
* by adding "_AXIS" to the texture option. For instance if you wanted to repeat on the S (horizontal) axis, you
* would use
WrapRepeat_S
as a texture option.
*/
Wrap {
@Override
public void applyToTexture(final String option, final Texture texture) {
final int separatorPosition = option.indexOf("_");
if (separatorPosition >= option.length() - 2) {
final String axis = option.substring(separatorPosition + 1);
final String mode = option.substring(0, separatorPosition);
final Texture.WrapAxis wrapAxis = Texture.WrapAxis.valueOf(axis);
texture.setWrap(wrapAxis, Texture.WrapMode.valueOf(mode));
} else {
texture.setWrap(Texture.WrapMode.valueOf(option));
}
}
},
/**
* Applies a {@link com.jme3.texture.Texture.WrapMode#Repeat} to the texture. This is simply an alias for
* WrapRepeat, please use WrapRepeat instead if possible as this may become deprecated later on.
*/
Repeat {
@Override
public void applyToTexture(final String option, final Texture texture) {
Wrap.applyToTexture("Repeat", texture);
}
},
/**
* Applies flipping on the Y axis to the {@link TextureKey#setFlipY(boolean)}.
*/
Flip {
@Override
public void applyToTextureKey(final String option, final TextureKey textureKey) {
textureKey.setFlipY(true);
}
};
public String getOptionValue(final String option) {
return option.substring(name().length());
}
public void applyToTexture(final String option, final Texture texture) {
}
public void applyToTextureKey(final String option, final TextureKey textureKey) {
}
public static TextureOption getTextureOption(final String option) {
for(final TextureOption textureOption : TextureOption.values()) {
if (option.startsWith(textureOption.name())) {
return textureOption;
}
}
return null;
}
}
/**
* Internal object used for holding a {@link com.jme3.material.plugins.J3MLoader.TextureOption} and its value. Also
* contains a couple of convenience methods for applying the TextureOption to either a TextureKey or a Texture.
*/
private static class TextureOptionValue {
private final TextureOption textureOption;
private final String value;
public TextureOptionValue(TextureOption textureOption, String value) {
this.textureOption = textureOption;
this.value = value;
}
public void applyToTextureKey(final TextureKey textureKey) {
textureOption.applyToTextureKey(value, textureKey);
}
public void applyToTexture(final Texture texture) {
textureOption.applyToTexture(value, texture);
}
}
}
