From e97b55f8849a7e61a59d0b524373a4c713cdad0f Mon Sep 17 00:00:00 2001
From: srowen <srowen@59b500cc-1b3d-0410-9834-0bbf25fbcc57>
Date: Wed, 26 Mar 2008 14:43:42 +0000
Subject: [PATCH] Removed old YUV-based implementation

git-svn-id: https://zxing.googlecode.com/svn/trunk@314 59b500cc-1b3d-0410-9834-0bbf25fbcc57
---
 .../android/YUVMonochromeBitmapSource.java    | 126 ------------------
 1 file changed, 126 deletions(-)
 delete mode 100755 android/src/com/google/zxing/client/android/YUVMonochromeBitmapSource.java

diff --git a/android/src/com/google/zxing/client/android/YUVMonochromeBitmapSource.java b/android/src/com/google/zxing/client/android/YUVMonochromeBitmapSource.java
deleted file mode 100755
index ff03fcf2f..000000000
--- a/android/src/com/google/zxing/client/android/YUVMonochromeBitmapSource.java
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * Copyright (C) 2008 Google Inc.
- *
- * 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 com.google.zxing.client.android;
-
-import android.graphics.Bitmap;
-import com.google.zxing.BlackPointEstimationMethod;
-import com.google.zxing.MonochromeBitmapSource;
-import com.google.zxing.ReaderException;
-import com.google.zxing.common.BitArray;
-import com.google.zxing.common.BlackPointEstimator;
-
-/**
- * This object implements MonochromeBitmapSource around an Android Bitmap. Rather than capturing an
- * RGB image and calculating the grey value at each pixel, we ask the camera driver for YUV data and
- * strip out the luminance channel directly. This should be faster but provides fewer bits, i.e.
- * fewer grey levels.
- *
- * @author dswitkin@google.com (Daniel Switkin)
- * @author srowen@google.com (Sean Owen)
- * @deprecated
- */
-@Deprecated
-final class YUVMonochromeBitmapSource implements MonochromeBitmapSource {
-
-  private final Bitmap image;
-  private int blackPoint;
-  private BlackPointEstimationMethod lastMethod;
-  private int lastArgument;
-
-  private static final int LUMINANCE_BITS = 5;
-  private static final int LUMINANCE_SHIFT = 8 - LUMINANCE_BITS;
-  private static final int LUMINANCE_BUCKETS = 1 << LUMINANCE_BITS;
-
-  YUVMonochromeBitmapSource(Bitmap image) {
-    this.image = image;
-    blackPoint = 0x7F;
-    lastMethod = null;
-    lastArgument = 0;
-  }
-
-  public boolean isBlack(int x, int y) {
-    return ((image.getPixel(x, y) >> 16) & 0xFF) < blackPoint;
-  }
-
-  public BitArray getBlackRow(int y, BitArray row, int startX, int getWidth) {
-    if (row == null) {
-      row = new BitArray(getWidth);
-    } else {
-      row.clear();
-    }
-    int[] pixelRow = new int[getWidth];
-     image.getPixels(pixelRow, 0, getWidth, startX, y, getWidth, 1);
-    for (int i = 0; i < getWidth; i++) {
-      if (((pixelRow[i] >> 16) & 0xFF) < blackPoint) {
-        row.set(i);
-      }
-    }
-    return row;
-  }
-
-  public int getHeight() {
-    return image.height();
-  }
-
-  public int getWidth() {
-    return image.width();
-  }
-
-  public void estimateBlackPoint(BlackPointEstimationMethod method, int argument) throws ReaderException {
-    if (!method.equals(lastMethod) || argument != lastArgument) {
-      int width = image.width();
-      int height = image.height();
-      int[] histogram = new int[LUMINANCE_BUCKETS];
-      if (method.equals(BlackPointEstimationMethod.TWO_D_SAMPLING)) {
-        int minDimension = width < height ? width : height;
-        int startI = height == minDimension ? 0 : (height - width) >> 1;
-        int startJ = width == minDimension ? 0 : (width - height) >> 1;
-        for (int n = 0; n < minDimension; n++) {
-          int pixel = image.getPixel(startJ + n, startI + n);
-          histogram[((pixel >> 16) & 0xFF) >> LUMINANCE_SHIFT]++;
-        }
-      } else if (method.equals(BlackPointEstimationMethod.ROW_SAMPLING)) {
-        if (argument < 0 || argument >= height) {
-          throw new IllegalArgumentException("Row is not within the image: " + argument);
-        }
-        int[] pixelRow = new int[width];
-        image.getPixels(pixelRow, 0, width, 0, argument, width, 1);
-        for (int x = 0; x < width; x++) {
-          histogram[((pixelRow[x] >> 16) & 0xFF) >> LUMINANCE_SHIFT]++;
-        }
-      } else {
-        throw new IllegalArgumentException("Unknown method: " + method);
-      }
-      blackPoint = BlackPointEstimator.estimate(histogram) << LUMINANCE_SHIFT;
-      lastMethod = method;
-      lastArgument = argument;
-    }
-  }
-
-  public BlackPointEstimationMethod getLastEstimationMethod() {
-    return lastMethod;
-  }
-
-  public MonochromeBitmapSource rotateCounterClockwise() {
-    throw new IllegalStateException("Rotate not supported");
-  }
-
-  public boolean isRotateSupported() {
-    return false;
-  }
-
-}
\ No newline at end of file