/**
*
* Copyright 2014
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*
* @project loon
* @author cping
* @email：javachenpeng@yahoo.com
* @version 0.4.1
*/
package loon.opengl.parse;
import loon.BaseIO;
import loon.utils.ArrayByte;
import loon.utils.ArrayByteReader;
import loon.utils.StringUtils;
import loon.utils.TArray;
public class D3DObjLoader {
D3DIObjLoaderAdapter mObjLoaderAdapter = new D3DObjLoaderAdapter();
TArray<float[]> vertices = new TArray<float[]>();
TArray<float[]> normals = new TArray<float[]>();
TArray<float[]> texcoords = new TArray<float[]>();
char vertCounter = 0;
public D3DObjLoader(D3DIObjLoaderAdapter objloader) {
mObjLoaderAdapter = objloader;
}
private void addVertexData(String vertexDesc) {
String tokens[] = vertexDesc.split("/");
int vIndice = Integer.parseInt(tokens[0]) - 1;
int tIndice = Integer.parseInt(tokens[1]) - 1;
int nIndice = Integer.parseInt(tokens[2]) - 1;
float vert[] = vertices.get(vIndice);
mObjLoaderAdapter.addVertex(vert[0], vert[1], vert[2]);
float norm[] = normals.get(nIndice);
mObjLoaderAdapter.addNormal(norm[0], norm[1], norm[2]);
float text[] = texcoords.get(tIndice);
mObjLoaderAdapter.addTexCoords(text[0], 1.0f - text[1]);
vertCounter++;
}
private void addfaceData(int vertCount) {
if (vertCount == 4) {
mObjLoaderAdapter.addFace((char) (vertCounter - 2),
(char) (vertCounter - 3), (char) (vertCounter - 4));
mObjLoaderAdapter.addFace((char) (vertCounter - 1),
(char) (vertCounter - 2), (char) (vertCounter - 4));
} else if (vertCount == 3) {
mObjLoaderAdapter.addFace((char) (vertCounter - 1),
(char) (vertCounter - 2), (char) (vertCounter - 3));
}
}
public void forwardCountFromStream(ArrayByte is) {
int faceCounter = 0;
int vertexCounter = 0;
try {
ArrayByteReader reader = new ArrayByteReader(is);
String line = null;
while ((line = reader.readLine()) != null) {
String tokens[] = line.split(" ");
if (tokens.length > 0) {
if (tokens[0].equals("f")) {
if (tokens.length == 5) {
vertexCounter += 4;
faceCounter += 2;
} else if (tokens.length == 4) {
vertexCounter += 3;
faceCounter += 1;
}
}
}
}
reader.close();
} catch (Exception e) {
e.printStackTrace();
}
mObjLoaderAdapter.setVertexNumber(vertexCounter);
mObjLoaderAdapter.setFaceNumber(faceCounter);
}
public void loadFromFile(ArrayByte is) {
forwardCountFromStream(is);
is.setPosition(0);
try {
ArrayByteReader reader = new ArrayByteReader(is);
String line = null;
while ((line = reader.readLine()) != null) {
String tokens[] = StringUtils.split(line, " ");
if (tokens.length > 0) {
if ((tokens[0].length() > 0) && tokens[0].charAt(0) == 'v') {
float v[] = new float[3];
v[0] = Float.parseFloat(tokens[1]);
v[1] = Float.parseFloat(tokens[2]);
v[2] = Float.parseFloat(tokens[3]);
vertices.add(v);
}
if (tokens[0].equals("vn")) {
float v[] = new float[3];
v[0] = Float.parseFloat(tokens[1]);
v[1] = Float.parseFloat(tokens[2]);
v[2] = Float.parseFloat(tokens[3]);
normals.add(v);
}
if (tokens[0].equals("vt")) {
float v[] = new float[2];
v[0] = Float.parseFloat(tokens[1]);
v[1] = Float.parseFloat(tokens[2]);
texcoords.add(v);
}
if (tokens[0].equals("f")) {
if (tokens.length == 5) {
addVertexData(tokens[1]);
addVertexData(tokens[2]);
addVertexData(tokens[3]);
addVertexData(tokens[4]);
addfaceData(4);
} else if (tokens.length == 4) {
addVertexData(tokens[1]);
addVertexData(tokens[2]);
addVertexData(tokens[3]);
addfaceData(3);
}
}
}
}
reader.close();
} catch (Exception e) {
e.printStackTrace();
}
}
private void forwardCount(String file) {
int faceCounter = 0;
int vertexCounter = 0;
try {
String[] lines = StringUtils.split(BaseIO.loadText(file), '\n');
for (String line : lines) {
String tokens[] = line.split(" ");
if (tokens.length > 0) {
if (tokens[0].equals("f")) {
if (tokens.length == 5) {
vertexCounter += 4;
faceCounter += 2;
} else if (tokens.length == 4) {
vertexCounter += 3;
faceCounter += 1;
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
mObjLoaderAdapter.setVertexNumber(vertexCounter);
mObjLoaderAdapter.setFaceNumber(faceCounter);
}
public void loadFromFile(String file) {
forwardCount(file);
try {
String[] lines = StringUtils.split(BaseIO.loadText(file), '\n');
for (String line : lines) {
String tokens[] = StringUtils.split(line, " ");
if (tokens.length > 0) {
if (tokens[0].charAt(0) == 'v') {
float v[] = new float[3];
v[0] = Float.parseFloat(tokens[1]);
v[1] = Float.parseFloat(tokens[2]);
v[2] = Float.parseFloat(tokens[3]);
vertices.add(v);
}
if (tokens[0].equals("vn")) {
float v[] = new float[3];
v[0] = Float.parseFloat(tokens[1]);
v[1] = Float.parseFloat(tokens[2]);
v[2] = Float.parseFloat(tokens[3]);
vertices.add(v);
}
if (tokens[0].equals("vt")) {
float v[] = new float[3];
v[0] = Float.parseFloat(tokens[1]);
v[1] = Float.parseFloat(tokens[2]);
texcoords.add(v);
}
if (tokens[0].equals("f")) {
if (tokens.length == 5) {
addVertexData(tokens[1]);
addVertexData(tokens[2]);
addVertexData(tokens[3]);
addVertexData(tokens[4]);
addfaceData(4);
} else if (tokens.length == 4) {
addVertexData(tokens[1]);
addVertexData(tokens[2]);
addVertexData(tokens[3]);
addfaceData(3);
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}