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package com.android.camera.ui;
import javax.microedition.khronos.opengles.GL11;
abstract class BasicTexture implements Texture {
protected static final int UNSPECIFIED = -1;
public static final int STATE_UNLOADED = 0;
public static final int STATE_LOADED = 1;
public static final int STATE_ERROR = -1;
protected GL11 mGL;
protected int mId;
protected int mState;
protected int mWidth = UNSPECIFIED;
protected int mHeight = UNSPECIFIED;
protected int mTextureWidth;
protected int mTextureHeight;
protected BasicTexture(GL11 gl, int id, int state) {
mGL = gl;
mId = id;
mState = state;
}
protected BasicTexture() {
this(null, 0, STATE_UNLOADED);
}
protected void setSize(int width, int height) {
mWidth = width;
mHeight = height;
}
/**
* Sets the size of the texture. Due to the limit of OpenGL, the texture
* size must be of power of 2, the size of the content may not be the size
* of the texture.
*/
protected void setTextureSize(int width, int height) {
mTextureWidth = width;
mTextureHeight = height;
}
public int getId() {
return mId;
}
public int getWidth() {
return mWidth;
}
public int getHeight() {
return mHeight;
}
public void deleteFromGL() {
if (mState == STATE_LOADED) {
mGL.glDeleteTextures(1, new int[]{mId}, 0);
}
mState = STATE_UNLOADED;
}
public void draw(GLRootView root, int x, int y) {
root.drawTexture(this, x, y, mWidth, mHeight);
}
public void draw(GLRootView root, int x, int y, int w, int h) {
root.drawTexture(this, x, y, w, h);
}
abstract protected boolean bind(GLRootView root, GL11 gl);
}
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