/*
 * Copyright (C) 2018 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.hardware.nativehardware.cts;

import android.content.pm.PackageManager;
import android.content.res.Configuration;
import android.hardware.HardwareBuffer;
import android.test.AndroidTestCase;

/**
 * Checks whether layered buffers are supported when VR feature is present.
 */
public class HardwareBufferVrTest extends AndroidTestCase {
    public void testLayeredBuffersForVr() throws AssertionError {
        boolean mIsVrHeadset = (getContext().getResources().getConfiguration().uiMode
            & Configuration.UI_MODE_TYPE_MASK) == Configuration.UI_MODE_TYPE_VR_HEADSET;

        // Some phones upgrading from older Android versions have the high performance VR feature,
        // but cannot meet this requirement. Only actually check it for standalone VR headsets.
        PackageManager pm = getContext().getPackageManager();
        if (!pm.hasSystemFeature(PackageManager.FEATURE_VR_MODE_HIGH_PERFORMANCE) || !mIsVrHeadset) {
            return;
        }
        final long flags = HardwareBuffer.USAGE_GPU_SAMPLED_IMAGE | HardwareBuffer.USAGE_GPU_COLOR_OUTPUT;
        final int formats[] = {
            HardwareBuffer.RGB_565,
            HardwareBuffer.RGBA_8888,
            HardwareBuffer.RGBA_1010102,
            HardwareBuffer.RGBA_FP16,
        };
        for (final int format : formats) {
            HardwareBuffer buffer = HardwareBuffer.create(2, 4, format, 2, flags);
            assertEquals(2, buffer.getWidth());
            assertEquals(4, buffer.getHeight());
            assertEquals(2, buffer.getLayers());
            assertEquals(format, buffer.getFormat());
            assertEquals(flags, buffer.getUsage());

            buffer = HardwareBuffer.create(345, 231, format, 5, flags);
            assertEquals(345, buffer.getWidth());
            assertEquals(231, buffer.getHeight());
            assertEquals(5, buffer.getLayers());
            assertEquals(format, buffer.getFormat());
            assertEquals(flags, buffer.getUsage());
        }
    }
}