I have a GLSurfaceView and a Renderer which loads textures in onSurfaceCreated. My textures are created like so :
public Texture3D(final GL10 gl, final int id) {
_pBitmap = BitmapFactory.decodeResource(Utils.getResources(), id);
gl.glEnable(GL10.GL_TEXTURE_2D);
gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT, GL10.GL_NICEST);
texture = newTextureID(gl);
gl.glBindTexture(GL10.GL_TEXTURE_2D, texture);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_S, GL10.GL_CLAMP_TO_EDGE);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_T, GL10.GL_CLAMP_TO_EDGE);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR);
gl.glBlendFunc(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA);
GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, _pBitmap, 0);
_pBitmap.recycle();
_pBitmap = null;
gl.glEnable(GL10.GL_BLEND);
}
I store them in an HashMap :
textures.put(R.drawable.tile, new Texture3D(gl, R.drawable.tile));
My problem is when I create a texture from a large image (720x1280, 561 Ko) after I sometimes get the following error :
04-24 11:05:19.870: D/dalvikvm(27953): GC_CONCURRENT freed 26K, 18% free 50397K/60743K, paused 18ms+6ms, total 57ms
04-24 11:05:19.870: D/dalvikvm(27953): WAIT_FOR_CONCURRENT_GC blocked 2ms
04-24 11:05:19.895: D/dalvikvm(27953): GC_FOR_ALLOC freed 7K, 18% free 50390K/60743K, paused 25ms, total 25ms
04-24 11:05:19.900: I/dalvikvm-heap(27953): Forcing collection of SoftReferences for 14745616-byte allocation
04-24 11:05:19.940: D/dalvikvm(27953): GC_BEFORE_OOM freed 10K, 18% free 50380K/60743K, paused 41ms, total 41ms
04-24 11:05:19.940: E/dalvikvm-heap(27953): Out of memory on a 14745616-byte allocation.
04-24 11:05:19.940: I/dalvikvm(27953): "GLThread 11210" prio=5 tid=35 RUNNABLE
04-24 11:05:19.940: I/dalvikvm(27953): | group="main" sCount=0 dsCount=0 obj=0x42ec2008 self=0x6095d078
04-24 11:05:19.940: I/dalvikvm(27953): | sysTid=29199 nice=0 sched=0/0 cgrp=apps handle=1623155456
04-24 11:05:19.940: I/dalvikvm(27953): | schedstat=( 142147207 17456123 110 ) utm=11 stm=2 core=2
04-24 11:05:19.940: I/dalvikvm(27953): at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
04-24 11:05:19.945: I/dalvikvm(27953): at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:623)
04-24 11:05:19.945: I/dalvikvm(27953): at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:476)
04-24 11:05:19.945: I/dalvikvm(27953): at android.graphics.BitmapFactory.decodeResource(BitmapFactory.java:499)
04-24 11:05:19.945: I/dalvikvm(27953): at android.graphics.BitmapFactory.decodeResource(BitmapFactory.java:529)
04-24 11:05:19.945: I/dalvikvm(27953): at com.gbanga.opengl.Texture3D.<init>(Texture3D.java:73)
04-24 11:05:19.945: I/dalvikvm(27953): at com.gbanga.opengl.Texture3D.setupTextures(Texture3D.java:169)
04-24 11:05:19.945: I/dalvikvm(27953): at com.gbanga.opengl.OpenGLRenderer.onSurfaceCreated(OpenGLRenderer.java:440)
04-24 11:05:19.950: I/dalvikvm(27953): at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1494)
04-24 11:05:19.950: I/dalvikvm(27953): at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1240)
That points to the first line of the constructor where I use BitmapFactory.decodeResource. On my Galaxy S3 I get the error when I switch to another fragment and then I come back to the fragment that displays the GLSurfaceView (onPause and onResume are called on the GLSurfaceView).
How can I avoid this problem ? I tried this solution but I lose too much quality and in rare case the bug happens anyway (probably on old phones models).
Is there something wrong how I create / store my textures ? Also do you know why I don't always get this error ? (generally I get it the second time I load the textures).