StackOverflow2013

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POAndroid OpenGLES device issue
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copied!<p>I have recently started learning OpenGLES with Android. I am creating a livewallpaper with GLWallpaperService class with rendering. </p> <p>The problem with Android simulator is able to display animation but <strong>while testing with Android device (HTC Incredible S) FPS remains around 45-50 but screen remains blank.</strong></p> <p>Here is the code snippet !!</p> <p><strong>onDrawFrame</strong></p> <pre><code>public void onDrawFrame(GL10 gl) { float currLevel = curve[(MAX_CURVE_POINT_NO + curveStart - 1) % MAX_CURVE_POINT_NO]; if (!isCreated) { isCreated = !isCreated; _spriteVerices = BufferFactory.createFloatBuffer(8); spriteTextCordinates = BufferFactory.createShortBuffer(8); } _spriteVerices.put(spriteVerices); spriteTextCordinates.put(spriteTextCordinatesArray); _spriteVerices.position(0); spriteTextCordinates.position(0); gl.glBlendFunc(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA); gl.glEnable(GL10.GL_BLEND); gl.glEnable(GL10.GL_DEPTH_TEST); gl.glEnable(GL10.GL_LINE_SMOOTH); gl.glEnable(GL10.GL_POINT_SMOOTH); gl.glMatrixMode(GL10.GL_PROJECTION); gl.glLoadIdentity(); gl.glOrthof(-1.0f, 1.0f, -1.5f, 1.5f, -1.0f, 1.0f); gl.glMatrixMode(GL10.GL_MODELVIEW); gl.glLoadIdentity(); gl.glScalef(0.8f, 0.8f, 1.0f); gl.glTranslatef(-0.2f, 0, 0); gl.glClearColor(0.0f, 0.0f, 0.0f, 1.0f); gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT); gl.glEnable(GL10.GL_TEXTURE_2D); gl.glVertexPointer(2, GL10.GL_FLOAT, 0, _spriteVerices); gl.glEnableClientState(GL10.GL_VERTEX_ARRAY); gl.glTexCoordPointer(2, GL10.GL_SHORT, 0, spriteTextCordinates); gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY); gl.glPushMatrix(); gl.glTranslatef(1.0f, currLevel, -0.01f); gl.glColor4f(0.0f, 0.5f, 1.0f, 1.0f); gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 0, 4); gl.glPopMatrix(); curve[curveStart] = ekgMap[curveStart]; // ((rand()%32768)/32768.0)*0.4-0.2; curveStart = (curveStart + 1) % MAX_CURVE_POINT_NO; } </code></pre> <p><strong>onSurfaceChanged</strong></p> <pre><code>public void onSurfaceChanged(GL10 gl, int width, int height) { gl.glViewport(0, 0, width, height); gl.glEnableClientState(GL10.GL_VERTEX_ARRAY); gl.glMatrixMode(GL10.GL_PROJECTION); gl.glLoadIdentity(); GLU.gluPerspective(gl, 60f, (float) width / (float) height, 1f, 100f); gl.glMatrixMode(GL10.GL_MODELVIEW); gl.glLoadIdentity(); gl.glMatrixMode(GL10.GL_MODELVIEW); gl.glTranslatef(0, 0, -5); gl.glRotatef(30f, 1, 0, 0); gl.glEnable(GL10.GL_LIGHTING); gl.glEnable(GL10.GL_RESCALE_NORMAL); gl.glEnableClientState(GL10.GL_NORMAL_ARRAY); // Set the color of light bouncing off of surfaces to respect the // surface color gl.glEnable(GL10.GL_COLOR_MATERIAL); setupLightSources(gl); // Turn on a global ambient light. The "Cosmic Background Radiation", if // you will. float[] ambientLightRGB = { 0.3f, 0.3f, 0.3f, 1.0f }; gl.glLightModelfv(GL10.GL_LIGHT_MODEL_AMBIENT, ambientLightRGB, 0); } </code></pre> <p><strong>onSurfaceCreated</strong></p> <pre><code>public void onSurfaceCreated(GL10 gl, EGLConfig config) { this.loadTexture(gl, mContext, R.drawable.dot); gl.glClearDepthf(1f); gl.glEnable(GL10.GL_DEPTH_TEST); gl.glDepthFunc(GL10.GL_LEQUAL); // Turn on culling, so OpenGL only draws one side of the primitives gl.glEnable(GL10.GL_CULL_FACE); gl.glFrontFace(GL10.GL_CCW); gl.glCullFace(GL10.GL_BACK); gl.glBlendFunc(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA); gl.glEnable(GL10.GL_BLEND); gl.glEnable(GL10.GL_DEPTH_TEST); gl.glEnable(GL10.GL_LINE_SMOOTH); gl.glEnable(GL10.GL_POINT_SMOOTH); } </code></pre> <p>Thanks,</p>

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