Java tutorial
//package com.java2s; /* * Copyright (C) 2012 CyberAgent * * 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. */ import android.graphics.Bitmap; import android.graphics.Bitmap.Config; import android.hardware.Camera.Size; import android.opengl.GLES20; import android.opengl.GLUtils; import java.nio.IntBuffer; public class Main { public static final int NO_TEXTURE = -1; public static int loadTextureAsBitmap(final IntBuffer data, final Size size, final int usedTexId) { Bitmap bitmap = Bitmap.createBitmap(data.array(), size.width, size.height, Config.ARGB_8888); return loadTexture(bitmap, usedTexId); } public static int loadTexture(final Bitmap img, final int usedTexId) { return loadTexture(img, usedTexId, true); } public static int loadTexture(final Bitmap img, final int usedTexId, final boolean recycle) { int textures[] = new int[1]; if (usedTexId == NO_TEXTURE) { GLES20.glGenTextures(1, textures, 0); GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textures[0]); GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR); GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR); GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE); GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE); GLUtils.texImage2D(GLES20.GL_TEXTURE_2D, 0, img, 0); } else { GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, usedTexId); GLUtils.texSubImage2D(GLES20.GL_TEXTURE_2D, 0, 0, 0, img); textures[0] = usedTexId; } if (recycle) { img.recycle(); } return textures[0]; } public static int loadTexture(final IntBuffer data, final Size size, final int usedTexId) { int textures[] = new int[1]; if (usedTexId == NO_TEXTURE) { GLES20.glGenTextures(1, textures, 0); GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textures[0]); GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR); GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR); GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE); GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE); GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, size.width, size.height, 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, data); } else { GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, usedTexId); GLES20.glTexSubImage2D(GLES20.GL_TEXTURE_2D, 0, 0, 0, size.width, size.height, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, data); textures[0] = usedTexId; } return textures[0]; } }