I have an OpenGL ES2.0 application that runs on devices with different versions of Android from 2.2 to 4.1. However, they told me that when running on Nexus 7 with Android 4.2, the 3D graphics in the application are all black. However, the action bar and dialogs work fine. I tried it on an emulated Nexus 7 with an Intel Atom processor, HAX and GPU with 4.2.2 enabled, and this works fine. I would prefer to run the ARM image, but does not seem to include Open GL ES2.0
Does anyone have an idea of what might cause this problem on Nexus 7 and how to get around it?
One possibility is that the current version of the application has a target API level of 15, and 4.2.2 has a level of 17. Could this be a problem? However, it works fine on the emulator.
Below is the code that I use to set the textures in the onSurfaceCreated () renderer in case this is any help.
private void setupTextures(String[] texFiles) {
mTextureIDs = new int[texFiles.length];
GLES20.glGenTextures(texFiles.length, mTextureIDs, 0);
for(int i = 0; i < texFiles.length; i++) {
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mTextureIDs[i]);
GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER,
GLES20.GL_NEAREST);
GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D,
GLES20.GL_TEXTURE_MAG_FILTER,
GLES20.GL_LINEAR);
GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S,
GLES20.GL_REPEAT);
GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T,
GLES20.GL_REPEAT);
int ID = mContext.getResources().getIdentifier( texFiles[i], "raw", "com.antonymsoft.slidixcube" );
InputStream is = mContext.getResources().openRawResource(ID);
Bitmap bitmap;
try {
bitmap = BitmapFactory.decodeStream(is);
} finally {
try {
is.close();
} catch(IOException e) {
}
}
GLUtils.texImage2D(GLES20.GL_TEXTURE_2D, 0, bitmap, 0);
bitmap.recycle();
}
}
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