我正在尝试运行一个obj加载器。 我正在使用Java，OpenGL ES和Android工作室。 我试图使用上下文调用方法并获取错误。 错误是：
Model () in Model cannot be applied to (int, android.content.context)
我试图传递的上下文来自GLsurfaceview。即：
glSurfaceView.setRenderer(new ObjRenderer (this));
如何修复此错误？ 我的代码如下：
package com.android.objectloader.objectloader;
import android.content.Context;
import android.util.Log;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
import java.nio.ShortBuffer;
import java.util.ArrayList;
class GroupObject extends Model {
String objectName;
public GroupObject(){
}
public void setObjectName(String string) {
this.objectName = string;
}
public String getObjectName() {
return objectName;
}
// Android Stuff!
public Context context; // changed to public
private int modelID;
public int Model (int modelID, Context activity) { // return type is int
this.vertices = new ArrayList<Model.Vector3D>();
this.vertexTexture = new ArrayList<Model.Vector3D>();
this.vertexNormal = new ArrayList<Model.Vector3D>();
this.faces = new ArrayList<Face>();
this.groupObjects = new ArrayList<GroupObject>();
//this.modelID = modelID;
this.modelID = modelID;
this.context = activity;
loadFile();
}
private int loadFile() {
InputStream inputStream = context.getResources().openRawResource(
modelID);
BufferedReader in = new BufferedReader(new InputStreamReader(
inputStream));
try {
loadOBJ(in);
Log.d("LOADING FILE", "FILE LOADED SUCESSFULLY====================");
} catch (IOException e) {
e.printStackTrace();
}
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
return 1;
}
private void loadOBJ(BufferedReader in) throws IOException {
Log.d("LOADING FILE", "STARTING!====================");
GroupObject defaultObject = new GroupObject();
GroupObject currentObject = defaultObject;
this.groupObjects.add(defaultObject);
String Line; // Stores ever line we read!
String[] Blocks; // Stores string fragments after the split!!
String CommandBlock; // Stores Command Blocks such as: v, vt, vn, g,
// etc...
while ((Line = in.readLine()) != null) {
Blocks = Line.split(" ");
CommandBlock = Blocks[0];
// Log.d("COMMAND BLOCK" , "---------- " + CommandBlock +
// " ----------");
if (CommandBlock.equals("g")) {
if (Blocks[1] == "default")
currentObject = defaultObject;
else {
GroupObject groupObject = new GroupObject();
groupObject.setObjectName(Blocks[1]);
currentObject = groupObject;
groupObjects.add(groupObject);
}
}
if (CommandBlock.equals("v")) {
Model.Vector3D vertex = new Model.Vector3D(Float.parseFloat(Blocks[1]),
Float.parseFloat(Blocks[2]),
Float.parseFloat(Blocks[3]));
this.vertices.add(vertex);
// Log.d("VERTEX DATA", " " + vertex.getX() + ", " +
// vertex.getY() + ", " + vertex.getZ());
}
if (CommandBlock.equals("vt")) {
Model.Vector3D vertexTex = new Model.Vector3D(Float.parseFloat(Blocks[1]),
Float.parseFloat(Blocks[2]), 0.0f);
this.vertexTexture.add(vertexTex);
// Log.d("TEXTURE DATA", " " + vertexTex.getX() + ", " +
// vertexTex.getY() + ", " + vertexTex.getZ());
}
if (CommandBlock.equals("vn")) {
Model.Vector3D vertexNorm = new Model.Vector3D(Float.parseFloat(Blocks[1]),
Float.parseFloat(Blocks[2]),
Float.parseFloat(Blocks[3]));
this.vertexNormal.add(vertexNorm);
// Log.d("NORMAL DATA", " " + vertexNorm.getX() + ", " +
// vertexNorm.getY() + ", " + vertexNorm.getZ());
}
if (CommandBlock.equals("f")) {
Face face = new Face();
faces.add(face);
String[] faceParams;
for (int i = 1; i < Blocks.length; i++) {
faceParams = Blocks[i].split("/");
face.getVertices()
.add(this.vertices.get(Integer
.parseInt(faceParams[0]) - 1));
if (faceParams[1] == "") {
} else {
face.getUvws().add(
this.vertexTexture.get(Integer
.parseInt(faceParams[1]) - 1));
face.getNormals().add(
this.vertexNormal.get(Integer
.parseInt(faceParams[2]) - 1));
}
}
}
}
// fillInBuffers();
fillInBuffersWithNormals();
Log.d("OBJ OBJECT DATA", "V = " + vertices.size() + " VN = "
+ vertexTexture.size() + " VT = " + vertexNormal.size());
}
private void fillInBuffers() {
int facesSize = faces.size();
vertexCount = facesSize * 3;
tempV = new float[facesSize * 3 * 3];
tempVt = new float[facesSize * 2 * 3];
indices = new short[facesSize * 3];
for (int i = 0; i < facesSize; i++) {
Face face = faces.get(i);
tempV[i * 9] = face.getVertices().get(0).getX();
tempV[i * 9 + 1] = face.getVertices().get(0).getY();
tempV[i * 9 + 2] = face.getVertices().get(0).getZ();
tempV[i * 9 + 3] = face.getVertices().get(1).getX();
tempV[i * 9 + 4] = face.getVertices().get(1).getY();
tempV[i * 9 + 5] = face.getVertices().get(1).getZ();
tempV[i * 9 + 6] = face.getVertices().get(2).getX();
tempV[i * 9 + 7] = face.getVertices().get(2).getY();
tempV[i * 9 + 8] = face.getVertices().get(2).getZ();
tempVt[i * 6] = face.getUvws().get(0).getX();
tempVt[i * 6 + 1] = face.getUvws().get(0).getY();
tempVt[i * 6 + 2] = face.getUvws().get(1).getX();
tempVt[i * 6 + 3] = face.getUvws().get(1).getY();
tempVt[i * 6 + 4] = face.getUvws().get(2).getX();
tempVt[i * 6 + 5] = face.getUvws().get(2).getY();
indices[i * 3] = (short) (i * 3);
indices[i * 3 + 1] = (short) (i * 3 + 1);
indices[i * 3 + 2] = (short) (i * 3 + 2);
}
_vb = ByteBuffer.allocateDirect(tempV.length * Model.FLOAT_SIZE_BYTES)
.order(ByteOrder.nativeOrder()).asFloatBuffer();
_vb.put(tempV);
_vb.position(0);
_tcb = ByteBuffer.allocateDirect(tempVt.length * Model.FLOAT_SIZE_BYTES)
.order(ByteOrder.nativeOrder()).asFloatBuffer();
_tcb.put(tempVt);
_tcb.position(0);
_ib = ByteBuffer.allocateDirect(indices.length * Model.SHORT_SIZE_BYTES)
.order(ByteOrder.nativeOrder()).asShortBuffer();
_ib.put(indices);
_ib.position(0);
}
private void fillInBuffersWithNormals() {
int facesSize = faces.size();
vertexCount = facesSize * 3;
tempV = new float[facesSize * 3 * 3];
tempVt = new float[facesSize * 2 * 3];
tempVn = new float[facesSize * 3 * 3];
indices = new short[facesSize * 3];
for (int i = 0; i < facesSize; i++) {
Face face = faces.get(i);
tempV[i * 9] = face.getVertices().get(0).getX();
tempV[i * 9 + 1] = face.getVertices().get(0).getY();
tempV[i * 9 + 2] = face.getVertices().get(0).getZ();
tempV[i * 9 + 3] = face.getVertices().get(1).getX();
tempV[i * 9 + 4] = face.getVertices().get(1).getY();
tempV[i * 9 + 5] = face.getVertices().get(1).getZ();
tempV[i * 9 + 6] = face.getVertices().get(2).getX();
tempV[i * 9 + 7] = face.getVertices().get(2).getY();
tempV[i * 9 + 8] = face.getVertices().get(2).getZ();
tempVn[i * 9] = face.getNormals().get(0).getX();
tempVn[i * 9 + 1] = face.getNormals().get(0).getY();
tempVn[i * 9 + 2] = face.getNormals().get(0).getZ();
tempVn[i * 9 + 3] = face.getNormals().get(1).getX();
tempVn[i * 9 + 4] = face.getNormals().get(1).getY();
tempVn[i * 9 + 5] = face.getNormals().get(1).getZ();
tempVn[i * 9 + 6] = face.getNormals().get(2).getX();
tempVn[i * 9 + 7] = face.getNormals().get(2).getY();
tempVn[i * 9 + 8] = face.getNormals().get(2).getZ();
tempVt[i * 6] = face.getUvws().get(0).getX();
tempVt[i * 6 + 1] = face.getUvws().get(0).getY();
tempVt[i * 6 + 2] = face.getUvws().get(1).getX();
tempVt[i * 6 + 3] = face.getUvws().get(1).getY();
tempVt[i * 6 + 4] = face.getUvws().get(2).getX();
tempVt[i * 6 + 5] = face.getUvws().get(2).getY();
indices[i * 3] = (short) (i * 3);
indices[i * 3 + 1] = (short) (i * 3 + 1);
indices[i * 3 + 2] = (short) (i * 3 + 2);
}
_vb = ByteBuffer.allocateDirect(tempV.length * Model.FLOAT_SIZE_BYTES)
.order(ByteOrder.nativeOrder()).asFloatBuffer();
_vb.put(tempV);
_vb.position(0);
_tcb = ByteBuffer.allocateDirect(tempVt.length * Model.FLOAT_SIZE_BYTES)
.order(ByteOrder.nativeOrder()).asFloatBuffer();
_tcb.put(tempVt);
_tcb.position(0);
_nb = ByteBuffer.allocateDirect(tempVn.length * Model.FLOAT_SIZE_BYTES)
.order(ByteOrder.nativeOrder()).asFloatBuffer();
_nb.put(tempVn);
_nb.position(0);
_ib = ByteBuffer.allocateDirect(indices.length * Model.SHORT_SIZE_BYTES)
.order(ByteOrder.nativeOrder()).asShortBuffer();
_ib.put(indices);
_ib.position(0);
}
public FloatBuffer getVertices() {
return _vb;
}
public FloatBuffer getTexCoords() {
return _tcb;
}
public ShortBuffer getIndices() {
return _ib;
}
public FloatBuffer getNormals() {
return _nb;
}
}`package com.android.objectloader.objectloader;
import android.content.Context;
import android.opengl.GLES20;
import android.opengl.GLSurfaceView.Renderer;
import java.nio.FloatBuffer;
import java.nio.ShortBuffer;
import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.opengles.GL10;
import static android.opengl.GLES20.GL_COLOR_BUFFER_BIT;
import static android.opengl.GLES20.GL_FLOAT;
import static android.opengl.GLES20.GL_TRIANGLES;
import static android.opengl.GLES20.GL_UNSIGNED_INT;
import static android.opengl.GLES20.glClear;
import static android.opengl.GLES20.glClearColor;
import static android.opengl.GLES20.glDrawArrays;
import static android.opengl.GLES20.glEnableVertexAttribArray;
import static android.opengl.GLES20.glGetAttribLocation;
import static android.opengl.GLES20.glGetUniformLocation;
import static android.opengl.GLES20.glUseProgram;
import static android.opengl.GLES20.glVertexAttribPointer;
import static android.opengl.GLES20.glViewport;
public class ObjRenderer extends GroupObject implements Renderer {
private static final String A_POSITION = "a_Position";
private int aPositionLocation;
private static final String U_COLOR = "u_Color";
private int uColorLocation;
private int program;
private static final int POSITION_COMPONENT_COUNT = 2;
private static final int BYTES_PER_FLOAT = 4;
private static final int BYTES_PER_INT = 4;
public FloatBuffer vertexData = null;
private ShortBuffer indexData = null;
public Context context = null; // changed to public
private int indicesSize;
private int [ ] indicesRef;
// public GroupObject GroupObjectReturn; //
public ObjRenderer(Context context) {
// this.context = context;
new Model(R.raw.cube_obj, this.context);
// float[] tableVerticesWithTriangles = {
// // Triangle 1
// -0.5f, -0.5f,
// 0.5f, 0.5f,
// -0.5f, 0.5f,
//
// // Triangle 2
// -0.5f, -0.5f,
// 0.5f, -0.5f,
// 0.5f, 0.5f,
//
// // Line 1
// -0.5f, 0f,
// 0.5f, 0f,
//
// // Mallets
// 0f, -0.25f,
// 0f, 0.25f
// };
}
@Override
public void onSurfaceCreated(GL10 glUnused, EGLConfig config) {
// Set the background clear color to red. The first component is
// red, the second is green, the third is blue, and the last
// component is alpha, which we don't use in this lesson.
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
String vertexShaderSource = com.android.objectloader.objectloader.TextResourceReader
.readTextFileFromResource(context, R.raw.simple_vertex_shader);
String fragmentShaderSource = com.android.objectloader.objectloader.TextResourceReader
.readTextFileFromResource(context, R.raw.simple_fragment_shader);
int vertexShader = com.android.objectloader.objectloader.ShaderHelper.compileVertexShader(vertexShaderSource);
int fragmentShader = com.android.objectloader.objectloader.ShaderHelper.compileFragmentShader(fragmentShaderSource);
program = com.android.objectloader.objectloader.ShaderHelper.linkProgram(vertexShader, fragmentShader);
if (LoggerConfig.ON){
com.android.objectloader.objectloader.ShaderHelper.validateProgram(program);
}
glUseProgram(program);
uColorLocation = glGetUniformLocation(program, U_COLOR);
aPositionLocation = glGetAttribLocation(program, A_POSITION);
// Bind our data, specified by the variable vertexData, to the vertex
// attribute at location A_POSITION_LOCATION.
// glVertexAttribPointer(aPositionLocation, POSITION_COMPONENT_COUNT, GL_FLOAT,
// false, 0, vertexData);
getVertices().position(0);
GLES20.glVertexAttribPointer(aPositionLocation, POSITION_COMPONENT_COUNT, GL_FLOAT,
false, 0, getVertices());
glEnableVertexAttribArray(aPositionLocation);
}
@Override
public void onSurfaceChanged(GL10 glUnused, int width, int height) {
// Set the OpenGL viewport to fill the entire surface.
glViewport(0, 0, width, height);
}
@Override
public void onDrawFrame(GL10 glUnused) {
// Clear the rendering surface.
glClear(GL_COLOR_BUFFER_BIT);
glEnableVertexAttribArray(aPositionLocation);
glUnused.glDrawElements(GL_TRIANGLES, indicesSize, GL_UNSIGNED_INT, );
// glUniform4f(uColorLocation, 1.0f, 1.0f, 1.0f, 1.0f);
glDrawArrays(GL_TRIANGLES, 0, 6);
}
}
}