// <DEFINENAME> [ ":" <PARAMNAME> ]
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");
}
}
/**
* finds a MatParam in the materialDef from the given name
*
* @param varName the matparam name
* @return the MatParam
*/
protected MatParam findMatParam(String varName) {
for (MatParam matParam : materialDef.getMaterialParams()) {
if (varName.equals(matParam.getName())) {
return matParam;
}
}
return null;
}
/**
* extract and check a condition expression
*
* @param cond the condition expression
* @param statement the statement being read
* @throws IOException
*/
public void extractCondition(String cond, Statement statement) throws IOException {
List<String> defines = conditionParser.extractDefines(cond);
for (String string : defines) {
MatParam param = findMatParam(string);
if (param != null) {
addDefine(param.getName(), param.getVarType());
} else {
throw new MatParseException(
"Invalid condition, condition must match a Material Parameter named " + cond,
statement);
}
}
}
public static BufferedImage terrainGetTexture(
Terrain terrain, int width, int height, String map) {
MatParam matParam = terrain.getMaterial().getParam(map);
if (matParam == null) {
return null;
}
Texture tex = (Texture) matParam.getValue();
if (tex == null) {
return null;
}
Image i = tex.getImage();
if (i == null) {
return null;
}
return scaleImage(ImageToAwt.convert(i, true, true, 0), width, height);
}
/**
* updates the right variable of the given mapping from a MatParam (a WorldParam) it checks if the
* unifrom hasn't already been loaded, add it to the maps if not.
*
* @param param the MatParam
* @param mapping the mapping
* @param map the map of uniforms to search into
* @return true if the param was added to the map
*/
public boolean updateRightFromUniforms(
MatParam param,
VariableMapping mapping,
Map<String, DeclaredVariable> map,
Statement statement)
throws MatParseException {
ShaderNodeVariable right = mapping.getRightVariable();
DeclaredVariable dv = map.get(param.getPrefixedName());
if (dv == null) {
right.setType(param.getVarType().getGlslType());
right.setName(param.getPrefixedName());
if (mapping.getLeftVariable().getMultiplicity() != null) {
if (!param.getVarType().name().endsWith("Array")) {
throw new MatParseException(param.getName() + " is not of Array type", statement);
}
String multiplicity = mapping.getLeftVariable().getMultiplicity();
try {
Integer.parseInt(multiplicity);
} catch (NumberFormatException nfe) {
// multiplicity is not an int attempting to find for a material parameter.
MatParam mp = findMatParam(multiplicity);
if (mp != null) {
addDefine(multiplicity, VarType.Int);
multiplicity = multiplicity.toUpperCase();
} else {
throw new MatParseException(
"Wrong multiplicity for variable"
+ mapping.getLeftVariable().getName()
+ ". "
+ multiplicity
+ " should be an int or a declared material parameter.",
statement);
}
}
right.setMultiplicity(multiplicity);
}
dv = new DeclaredVariable(right);
map.put(right.getName(), dv);
dv.addNode(shaderNode);
mapping.setRightVariable(right);
return true;
}
dv.addNode(shaderNode);
mapping.setRightVariable(dv.var);
return false;
}
private void readValueParam(String statement) throws IOException {
// Use limit=1 incase 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);
}
}
/**
* reads an input mapping
*
* @param statement1 the statement being read
* @return the mapping
* @throws IOException
*/
public VariableMapping readInputMapping(Statement statement1) throws IOException {
VariableMapping mapping = null;
try {
mapping = parseMapping(statement1, new boolean[] {false, true});
} catch (Exception e) {
throw new MatParseException("Unexpected mapping format", statement1, e);
}
ShaderNodeVariable left = mapping.getLeftVariable();
ShaderNodeVariable right = mapping.getRightVariable();
if (!updateVariableFromList(left, shaderNode.getDefinition().getInputs())) {
throw new MatParseException(
left.getName() + " is not an input variable of " + shaderNode.getDefinition().getName(),
statement1);
}
if (left.getType().startsWith("sampler") && !right.getNameSpace().equals("MatParam")) {
throw new MatParseException("Samplers can only be assigned to MatParams", statement1);
}
if (right.getNameSpace().equals("Global")) {
right.setType("vec4"); // Globals are all vec4 for now (maybe forever...)
// updateCondition(right, mapping);
storeGlobal(right, statement1);
} else if (right.getNameSpace().equals("Attr")) {
if (shaderNode.getDefinition().getType() == Shader.ShaderType.Fragment) {
throw new MatParseException(
"Cannot have an attribute as input in a fragment shader" + right.getName(), statement1);
}
updateVarFromAttributes(mapping.getRightVariable(), mapping);
// updateCondition(mapping.getRightVariable(), mapping);
storeAttribute(mapping.getRightVariable());
} else if (right.getNameSpace().equals("MatParam")) {
MatParam param = findMatParam(right.getName());
if (param == null) {
throw new MatParseException(
"Could not find a Material Parameter named " + right.getName(), statement1);
}
if (shaderNode.getDefinition().getType() == Shader.ShaderType.Vertex) {
if (updateRightFromUniforms(param, mapping, vertexDeclaredUniforms, statement1)) {
storeVertexUniform(mapping.getRightVariable());
}
} else {
if (updateRightFromUniforms(param, mapping, fragmentDeclaredUniforms, statement1)) {
if (mapping.getRightVariable().getType().contains("|")) {
String type = fixSamplerType(left.getType(), mapping.getRightVariable().getType());
if (type != null) {
mapping.getRightVariable().setType(type);
} else {
throw new MatParseException(
param.getVarType().toString()
+ " can only be matched to one of "
+ param.getVarType().getGlslType().replaceAll("\\|", ",")
+ " found "
+ left.getType(),
statement1);
}
}
storeFragmentUniform(mapping.getRightVariable());
}
}
} else if (right.getNameSpace().equals("WorldParam")) {
UniformBinding worldParam = findWorldParam(right.getName());
if (worldParam == null) {
throw new MatParseException(
"Could not find a World Parameter named " + right.getName(), statement1);
}
if (shaderNode.getDefinition().getType() == Shader.ShaderType.Vertex) {
if (updateRightFromUniforms(worldParam, mapping, vertexDeclaredUniforms)) {
storeVertexUniform(mapping.getRightVariable());
}
} else {
if (updateRightFromUniforms(worldParam, mapping, fragmentDeclaredUniforms)) {
storeFragmentUniform(mapping.getRightVariable());
}
}
} else {
ShaderNode node = nodes.get(right.getNameSpace());
if (node == null) {
throw new MatParseException(
"Undeclared node"
+ right.getNameSpace()
+ ". Make sure this node is declared before the current node",
statement1);
}
ShaderNodeVariable var = findNodeOutput(node.getDefinition().getOutputs(), right.getName());
if (var == null) {
throw new MatParseException(
"Cannot find output variable" + right.getName() + " form ShaderNode " + node.getName(),
statement1);
}
right.setNameSpace(node.getName());
right.setType(var.getType());
right.setMultiplicity(var.getMultiplicity());
mapping.setRightVariable(right);
storeVaryings(node, mapping.getRightVariable());
}
checkTypes(mapping, statement1);
return mapping;
}
