bind opengl Texture - Android android.opengl

Android examples for android.opengl:OpenGL Texture

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Description

bind opengl Texture

Demo Code


//package com.java2s;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.opengl.GLUtils;

import static android.opengl.GLES20.GL_LINEAR;
import static android.opengl.GLES20.GL_LINEAR_MIPMAP_LINEAR;

import static android.opengl.GLES20.GL_REPEAT;
import static android.opengl.GLES20.GL_TEXTURE_2D;
import static android.opengl.GLES20.GL_TEXTURE_MAG_FILTER;
import static android.opengl.GLES20.GL_TEXTURE_MIN_FILTER;
import static android.opengl.GLES20.GL_TEXTURE_WRAP_S;
import static android.opengl.GLES20.GL_TEXTURE_WRAP_T;

import static android.opengl.GLES20.glBindTexture;

import static android.opengl.GLES20.glGenTextures;
import static android.opengl.GLES20.glGenerateMipmap;

import static android.opengl.GLES20.glTexParameteri;

public class Main {
    protected static int bindTexture(Context context, int drawable) {
        BitmapFactory.Options option = new BitmapFactory.Options();
        option.inScaled = false;/*from  w  w  w .j  a  va  2s.c  o  m*/
        return bindTexture(BitmapFactory.decodeResource(
                context.getResources(), drawable, option));
    }

    protected static int bindTexture(Bitmap bitmap) {
        int[] textures = new int[1];
        glGenTextures(1, textures, 0);
        glBindTexture(GL_TEXTURE_2D, textures[0]);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
                GL_LINEAR_MIPMAP_LINEAR);
        GLUtils.texImage2D(GL_TEXTURE_2D, 0, bitmap, 0);
        glGenerateMipmap(GL_TEXTURE_2D);
        glBindTexture(GL_TEXTURE_2D, 0);
        return textures[0];
    }
}

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