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POAndroid Opengl doesn't render my display like emulator
 

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  1. POAndroid Opengl doesn't render my display like emulator
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    <p>I recently i stumbled accross a weird problem(or at least i think so).I made in a little opengl es app for Android.The problem is that on the emulator it run's fine but on the phone it just doesn't render what the emulator showed me! I tested the app on 2 devices:Samsung Ace and Sony Xperia x10 with the same result! I just don't know what is the problem(i don't have too much experience with opengl on android) so please if you have some ideas... point me out Some code:</p> <p>Class that implements Renderer</p> <pre><code>public class GLOrbitor implements Renderer{ OrbitorLayer layer; TexFont text; //this is used to render 1-9 and A-Z TexFont text1; //this one to render a-z int x; int y; private int atomNumber; private int width; private int height; private Context context; private final static float consty = 0.15f; GLOrbitor(Context context){ setContext(context); } @Override public void onDrawFrame(GL10 gl) { // TODO Auto-generated method stub gl.glDisable(GL10.GL_DITHER); gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT); gl.glMatrixMode(GL10.GL_MODELVIEW); gl.glLoadIdentity(); GLU.gluLookAt(gl, 0, 0, 5, 0f, 0f, 0f, 0f, 1.0f, 0.0f); gl.glPushMatrix(); gl.glEnable(GL10.GL_TEXTURE_2D); gl.glEnable(GL10.GL_BLEND); // We know this is a 32bit font so set blending to suit gl.glBlendFunc(GL10.GL_SRC_ALPHA,GL10.GL_ONE_MINUS_SRC_ALPHA); drawNumAndLetters(gl); gl.glDisable(GL10.GL_BLEND); gl.glDisable(GL10.GL_TEXTURE_2D); gl.glPopMatrix(); gl.glPushMatrix(); //gl.glTranslatef(-0.8f, 0.8f, 0f); layer.draw(gl,getAtomNumber()); gl.glPopMatrix(); gl.glDisableClientState(GL10.GL_VERTEX_ARRAY); } @Override public void onSurfaceChanged(GL10 gl, int width, int height) { // TODO Auto-generated method stub gl.glViewport(0,0, width, height); this.width = width; this.height = height; float ratio = (float)width/height; gl.glMatrixMode(GL10.GL_PROJECTION); gl.glLoadIdentity(); gl.glFrustumf(-ratio, ratio, 1, 1, 3, 7); } @Override public void onSurfaceCreated(GL10 gl, EGLConfig config) { layer = new OrbitorLayer(); text = new TexFont(getContext(),gl); text1 = new TexFont(getContext(),gl); try { text.LoadFont("ubunturegular.bff", gl); // 0-9 and A-Z text1.LoadFont("ubunturegular1.bff", gl); //a-z } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } // TODO Auto-generated method stub gl.glDisable(GL10.GL_DITHER); gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT,GL10.GL_NICEST); gl.glClearColor(0.0f,0.0f,0.0f, 1f); gl.glEnable(GL10.GL_DEPTH_TEST | GL10.GL_SMOOTH); gl.glShadeModel(GL10.GL_SMOOTH); gl.glFrontFace(GL10.GL_CCW); //gl.glEnable(GL10.GL_CULL_FACE); //gl.glCullFace(GL10.GL_BACK); } </code></pre> <p>}`</p> <p>//this code draw a tiny rectangle</p> <pre><code>public GLRectangle(){ setFilled(false); ByteBuffer vbb = ByteBuffer.allocateDirect(12 * 4); vbb.order(ByteOrder.nativeOrder()); mFVertexBuffer = vbb.asFloatBuffer(); ByteBuffer ibb = ByteBuffer.allocateDirect(6 * 2); ibb.order(ByteOrder.nativeOrder()); mIndexBuffer = ibb.asShortBuffer(); float[] coords = { -poz, -poz, 0, poz, -poz, 0, poz, poz, 0, -poz,poz,0 }; mFVertexBuffer.put(coords); short[] myIndecesArray = {0,1,2,0,2,3}; mIndexBuffer.put(myIndecesArray); mFVertexBuffer.position(0); mIndexBuffer.position(0); } public void draw(GL10 gl) { if(isFilled()) gl.glColor4f(1f, 0f, 0f, 1f); else gl.glColor4f(1f, 1f, 1f, 1f); gl.glEnableClientState(GL10.GL_VERTEX_ARRAY); gl.glVertexPointer(3, GL10.GL_FLOAT, 0, mFVertexBuffer); gl.glDrawElements(GL10.GL_TRIANGLES, 6,GL10.GL_UNSIGNED_SHORT, mIndexBuffer); gl.glDisableClientState(GL10.GL_VERTEX_ARRAY); } </code></pre> <p>//and this one draw an array of rectangles</p> <pre><code>public class OrbitorLayer { GLRectangle[] rectangle; GLMargin margin; private final static float consty = 0.15f; OrbitorLayer(){ margin = new GLMargin(); rectangle = new GLRectangle[118]; } public void draw(GL10 gl,int atomNumber){ for(int i = 0;i&lt;118;i++){ rectangle[i] = new GLRectangle(); if((i&gt;=0) &amp;&amp; (i&lt;atomNumber)) rectangle[i].setFilled(true); } //there's some exception for chromium with z = 24 and copper with z=29 //they have 4s1 and 3d5 also 4s1 and 3d10 if(atomNumber == 24){ //4s2 is at 19 and 24 rectangle[19].setFilled(false); rectangle[24].setFilled(true); } else if(atomNumber == 29){ //3d10 is at 29 rectangle[19].setFilled(false); rectangle[29].setFilled(true); } gl.glPushMatrix(); margin.draw(gl); gl.glPopMatrix(); int index = -1; float startx = -0.9f; float starty = 0.8f; //start with 1s layer for(int i=0;i&lt;2;i++){ index++; //rectangle[index] = new GLRectangle(); //translate and draw gl.glPushMatrix(); gl.glTranslatef((float) (startx + (i * 0.05)), starty, 0.0f); rectangle[index].draw(gl); gl.glPopMatrix(); } //2 s layer startx = -0.9f; starty = (float)(0.8f - (1 * consty)); for(int i=0;i&lt;2;i++){ index++; //rectangle[index] = new GLRectangle(); //translate and draw gl.glPushMatrix(); gl.glTranslatef((float) (startx + (i * 0.05)), starty, 0.0f); rectangle[index].draw(gl); gl.glPopMatrix(); } //2 p layer startx = 0.7f; starty = (float)(0.8f - (1 * consty)); for(int i=0;i&lt;6;i++){ index++; //rectangle[index] = new GLRectangle(); //translate and draw gl.glPushMatrix(); gl.glTranslatef((float) (startx + (i * 0.05)), starty, 0.0f); rectangle[index].draw(gl); gl.glPopMatrix(); } </code></pre> <p>}</p> <p>And a screenshot on how it's rendered on emulator<img src="https://i.stack.imgur.com/Ii9oT.png" alt="enter image description here"> On a real android smartphone those filled rectangles and blue rounded shape aren't visible only the letters and number's which are drawn with these code <a href="http://www.codehead.co.uk/cbfg/TexFont.java" rel="nofollow noreferrer">http://www.codehead.co.uk/cbfg/TexFont.java</a></p> <p>If you have some ideas please don't hesitate!</p> <hr> <p><strong>Update:</strong></p> <p>Thank you Craigy and Matthew</p> <p>Craigy:On a real phone i can't see those red and white little rectangles. Everything else work as exepected.By the way :only the the zone that fill the blue rectangle is an GLSurfaceView everything else has no link with opengl!Sorry if i can't provide a screenshot from a real device.My app was tested by 2 friends on their device's.</p> <p>Matthew:the only thing where i use texture is displaying:1,2,3,4,5,6,7 and s,f,d,p.And what's funny is that they are rendered well on a real device.My question is why drawing texture's affects drawing and translating those rectangles.Anyway i will play a little more with the info you suggested me and i will let you guys now!</p> <p>If you have any new intel about these problem...please i beg you..it's driving me nut's just displaying a few rectangles and some text give me so much problem's!!</p>
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