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60 lines
1.9 KiB
60 lines
1.9 KiB
/*
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* Copyright (C) 2010 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.geogle.zxing.camera;
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import android.graphics.Point;
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import android.hardware.Camera;
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import android.os.Handler;
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import android.os.Message;
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import android.util.Log;
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final class PreviewCallback implements Camera.PreviewCallback {
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private static final String TAG = PreviewCallback.class.getSimpleName();
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private final CameraConfigurationManager configManager;
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private final boolean useOneShotPreviewCallback;
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private Handler previewHandler;
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private int previewMessage;
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PreviewCallback(CameraConfigurationManager configManager, boolean useOneShotPreviewCallback) {
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this.configManager = configManager;
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this.useOneShotPreviewCallback = useOneShotPreviewCallback;
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}
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void setHandler(Handler previewHandler, int previewMessage) {
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this.previewHandler = previewHandler;
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this.previewMessage = previewMessage;
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}
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public void onPreviewFrame(byte[] data, Camera camera) {
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Point cameraResolution = configManager.getCameraResolution();
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if (!useOneShotPreviewCallback) {
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camera.setPreviewCallback(null);
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}
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if (previewHandler != null) {
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Message message = previewHandler.obtainMessage(previewMessage, cameraResolution.x,
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cameraResolution.y, data);
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message.sendToTarget();
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previewHandler = null;
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} else {
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Log.d(TAG, "Got preview callback, but no handler for it");
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}
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}
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}
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