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Terribly ugly workaround for destination alpha issues on Mali. Fixes #4272 .

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Henrik Rydgard 2013-10-24 01:14:41 +02:00
parent 83b65e7de1
commit 26946b52e7
1 changed files with 13 additions and 1 deletions
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14
android/src/com/henrikrydgard/libnative/NativeActivity.java
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@ -302,7 +302,19 @@ public class NativeActivity extends Activity {
// On some (especially older devices), things blow up later (EGL_BAD_MATCH) if we don't set the format here,
// if we specify that we want destination alpha in the config chooser, which we do.
// http://grokbase.com/t/gg/android-developers/11bj40jm4w/fall-back
mGLSurfaceView.getHolder().setFormat(PixelFormat.RGBA_8888);
// So what we really want is a RGBA8888 surface that is treated by the compositor as OPAQUE.
// Simply asking for OPAQUE here seems to do the trick on most devices, and seems to be required
// for some Mali devices to treat the surface as actually opaque (it seems to composite with blending
// agains a black background otherwise). However, on older devices like Xperia Play, this causes a
// BAD_MATCH exception later. Choosing RGBA_8888 here works fine though and everything is drawn correctly.
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.GINGERBREAD_MR1) {
mGLSurfaceView.getHolder().setFormat(PixelFormat.RGBA_8888);
} else {
// Workaround for Mali but appears to work on other devices too
mGLSurfaceView.getHolder().setFormat(PixelFormat.OPAQUE);
}
mGLSurfaceView.setEGLConfigChooser(new NativeEGLConfigChooser());
nativeRenderer = new NativeRenderer(this);