Java tutorial
//package com.java2s; /* Copyright_License { XCSoar Glide Computer - http://www.xcsoar.org/ Copyright (C) 2000-2016 The XCSoar Project A detailed list of copyright holders can be found in the file "AUTHORS". This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. } */ import android.graphics.Bitmap; import static android.opengl.GLES11.*; import android.opengl.GLUtils; public class Main { /** * Initialize the current texture and load the specified Bitmap into * it. */ private static boolean loadTexture(Bitmap bmp, int allocated_width, int allocated_height) { int internalFormat, format, type; int unpackAlignment; switch (bmp.getConfig()) { case ARGB_4444: case ARGB_8888: internalFormat = format = GL_RGBA; type = GL_UNSIGNED_BYTE; unpackAlignment = 4; break; case RGB_565: internalFormat = format = GL_RGB; type = GL_UNSIGNED_SHORT_5_6_5; unpackAlignment = 2; break; case ALPHA_8: internalFormat = format = GL_ALPHA; type = GL_UNSIGNED_BYTE; unpackAlignment = 1; break; default: return false; } /* create an empty texture, and load the Bitmap into it */ glTexImage2D(GL_TEXTURE_2D, 0, internalFormat, allocated_width, allocated_height, 0, format, type, null); glPixelStorei(GL_UNPACK_ALIGNMENT, unpackAlignment); GLUtils.texSubImage2D(GL_TEXTURE_2D, 0, 0, 0, bmp, format, type); return true; } }