152d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project/* 252d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 352d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * 452d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 552d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * you may not use this file except in compliance with the License. 652d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * You may obtain a copy of the License at 752d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * 852d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 952d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * 1052d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 1152d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 1252d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1352d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * See the License for the specific language governing permissions and 1452d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * limitations under the License. 1552d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project */ 1652d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 1752d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Projectpackage com.example.android.apis.graphics.kube; 1852d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 1952d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Projectimport android.opengl.GLSurfaceView; 2052d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 2152d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Projectimport javax.microedition.khronos.egl.EGLConfig; 2252d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Projectimport javax.microedition.khronos.opengles.GL10; 2352d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 2452d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 2552d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project/** 2652d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * Example of how to use OpenGL|ES in a custom view 2752d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * 2852d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project */ 2952d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Projectclass KubeRenderer implements GLSurfaceView.Renderer { 3052d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project public interface AnimationCallback { 3152d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project void animate(); 3252d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project } 3352d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 3452d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project public KubeRenderer(GLWorld world, AnimationCallback callback) { 3552d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project mWorld = world; 3652d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project mCallback = callback; 3752d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project } 3852d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 3952d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project public void onDrawFrame(GL10 gl) { 4052d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project if (mCallback != null) { 4152d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project mCallback.animate(); 4252d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project } 4352d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 4452d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project /* 4552d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * Usually, the first thing one might want to do is to clear 4652d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * the screen. The most efficient way of doing this is to use 4752d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * glClear(). However we must make sure to set the scissor 4852d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * correctly first. The scissor is always specified in window 4952d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * coordinates: 5052d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project */ 5152d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 5252d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glClearColor(0.5f,0.5f,0.5f,1); 5352d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT); 5452d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 5552d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project /* 5652d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * Now we're ready to draw some 3D object 5752d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project */ 5852d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 5952d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glMatrixMode(GL10.GL_MODELVIEW); 6052d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glLoadIdentity(); 6152d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glTranslatef(0, 0, -3.0f); 6252d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glScalef(0.5f, 0.5f, 0.5f); 6352d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glRotatef(mAngle, 0, 1, 0); 6452d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glRotatef(mAngle*0.25f, 1, 0, 0); 6552d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 6652d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glColor4f(0.7f, 0.7f, 0.7f, 1.0f); 6752d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glEnableClientState(GL10.GL_VERTEX_ARRAY); 6852d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glEnableClientState(GL10.GL_COLOR_ARRAY); 6952d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glEnable(GL10.GL_CULL_FACE); 7052d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glShadeModel(GL10.GL_SMOOTH); 7152d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glEnable(GL10.GL_DEPTH_TEST); 7252d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 7352d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project mWorld.draw(gl); 7452d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project } 7552d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 7652d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project public void onSurfaceChanged(GL10 gl, int width, int height) { 7752d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glViewport(0, 0, width, height); 7852d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 7952d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project /* 8052d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * Set our projection matrix. This doesn't have to be done 8152d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * each time we draw, but usually a new projection needs to be set 8252d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * when the viewport is resized. 8352d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project */ 8452d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 8552d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project float ratio = (float)width / height; 8652d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glMatrixMode(GL10.GL_PROJECTION); 8752d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glLoadIdentity(); 8852d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glFrustumf(-ratio, ratio, -1, 1, 2, 12); 8952d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 9052d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project /* 9152d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * By default, OpenGL enables features that improve quality 9252d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * but reduce performance. One might want to tweak that 9352d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project * especially on software renderer. 9452d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project */ 9552d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glDisable(GL10.GL_DITHER); 9652d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project gl.glActiveTexture(GL10.GL_TEXTURE0); 9752d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project } 9852d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 9952d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project public void onSurfaceCreated(GL10 gl, EGLConfig config) { 10052d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project // Nothing special, don't have any textures we need to recreate. 10152d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project } 10252d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 10352d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project public void setAngle(float angle) { 10452d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project mAngle = angle; 10552d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project } 10652d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 10752d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project public float getAngle() { 10852d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project return mAngle; 10952d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project } 11052d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 11152d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project private GLWorld mWorld; 11252d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project private AnimationCallback mCallback; 11352d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project private float mAngle; 11452d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project} 11552d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 11652d4c30ca52320ec92d1d1ddc8db3f07f69c4f98The Android Open Source Project 117