mirror of
https://github.com/fadden/6502bench.git
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248 lines
9.4 KiB
C#
248 lines
9.4 KiB
C#
/*
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* Copyright 2019 faddenSoft
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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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using System;
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using System.Collections.ObjectModel;
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using System.ComponentModel;
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using System.Diagnostics;
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using System.IO;
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using System.Runtime.CompilerServices;
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using System.Windows;
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using System.Windows.Controls;
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using Microsoft.Win32;
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using CommonUtil;
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namespace SourceGen.Tools.WpfGui {
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/// <summary>
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/// File concatenation tool.
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/// </summary>
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public partial class FileConcatenator : Window, INotifyPropertyChanged {
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//
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// Every action causes a selection change, so we don't explicitly call an "update
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// controls" function.
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//
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public bool IsRemoveEnabled {
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get { return mIsRemoveEnabled; }
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set { mIsRemoveEnabled = value; OnPropertyChanged(); }
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}
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private bool mIsRemoveEnabled;
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public bool IsUpEnabled {
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get { return mIsUpEnabled; }
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set { mIsUpEnabled = value; OnPropertyChanged(); }
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}
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private bool mIsUpEnabled;
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public bool IsDownEnabled {
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get { return mIsDownEnabled; }
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set { mIsDownEnabled = value; OnPropertyChanged(); }
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}
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private bool mIsDownEnabled;
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public bool IsSaveEnabled {
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get { return mIsSaveEnabled; }
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set { mIsSaveEnabled = value; OnPropertyChanged(); }
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}
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private bool mIsSaveEnabled;
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/// <summary>
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/// Item for main list.
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/// </summary>
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public class ConcatItem {
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public string PathName { get; private set; }
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public string FileName { get; private set; }
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public long Length { get; private set; }
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public string Crc32 { get; private set; }
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public ConcatItem(string pathName, long length, uint crc32) {
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PathName = pathName;
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Length = length;
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Crc32 = crc32.ToString("x8");
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FileName = Path.GetFileName(pathName);
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}
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}
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public ObservableCollection<ConcatItem> ConcatItems { get; private set; } =
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new ObservableCollection<ConcatItem>();
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// INotifyPropertyChanged implementation
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public event PropertyChangedEventHandler PropertyChanged;
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private void OnPropertyChanged([CallerMemberName] string propertyName = "") {
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PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
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}
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/// <summary>
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/// Constructor.
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/// </summary>
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/// <param name="owner">Parent window.</param>
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public FileConcatenator(Window owner) {
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InitializeComponent();
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Owner = owner;
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DataContext = this;
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// all "enabled" flags are initially false
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}
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private void ConcatGrid_SelectionChanged(object sender, SelectionChangedEventArgs e) {
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bool isItemSelected = (concatGrid.SelectedItem != null);
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IsRemoveEnabled = isItemSelected;
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IsUpEnabled = isItemSelected && concatGrid.SelectedIndex != 0;
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IsDownEnabled = isItemSelected && concatGrid.SelectedIndex != ConcatItems.Count - 1;
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IsSaveEnabled = ConcatItems.Count != 0;
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}
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private void AddButton_Click(object sender, RoutedEventArgs e) {
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OpenFileDialog fileDlg = new OpenFileDialog() {
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Filter = Res.Strings.FILE_FILTER_ALL,
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FilterIndex = 0,
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Multiselect = true,
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Title = (string)FindResource("str_SelectFileTitle")
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};
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if (fileDlg.ShowDialog() != true) {
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return;
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}
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try {
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foreach (string pathName in fileDlg.FileNames) {
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// The names in FileNames appear to be fully qualified.
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long length = new FileInfo(pathName).Length;
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uint crc32 = CRC32.OnWholeFile(pathName);
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ConcatItems.Add(new ConcatItem(pathName, length, crc32));
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concatGrid.SelectedIndex = ConcatItems.Count - 1;
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}
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} catch (Exception ex) {
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string caption = (string)FindResource("str_FileAccessFailedCaption");
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string fmt = (string)FindResource("str_FileAccessFailedFmt");
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MessageBox.Show(string.Format(fmt, ex.Message), caption,
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MessageBoxButton.OK, MessageBoxImage.Error);
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}
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}
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private void RemoveButton_Click(object sender, RoutedEventArgs e) {
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int index = concatGrid.SelectedIndex;
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ConcatItems.RemoveAt(index);
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// Keep selection at same index, unless we just removed the item at the end.
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if (index == ConcatItems.Count) {
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index--;
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}
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if (index >= 0) {
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concatGrid.SelectedIndex = index;
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}
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}
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private void UpButton_Click(object sender, RoutedEventArgs e) {
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ConcatItem item = (ConcatItem)concatGrid.SelectedItem;
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int index = concatGrid.SelectedIndex;
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Debug.Assert(index > 0);
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ConcatItems.RemoveAt(index);
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ConcatItems.Insert(index - 1, item);
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concatGrid.SelectedIndex = index - 1;
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}
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private void DownButton_Click(object sender, RoutedEventArgs e) {
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ConcatItem item = (ConcatItem)concatGrid.SelectedItem;
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int index = concatGrid.SelectedIndex;
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Debug.Assert(index >= 0 && index < ConcatItems.Count - 1);
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ConcatItems.RemoveAt(index);
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ConcatItems.Insert(index + 1, item);
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concatGrid.SelectedIndex = index + 1;
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}
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private void SaveButton_Click(object sender, RoutedEventArgs e) {
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SaveFileDialog fileDlg = new SaveFileDialog() {
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Filter = Res.Strings.FILE_FILTER_ALL,
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FilterIndex = 0,
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ValidateNames = true,
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FileName = "concat.bin"
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};
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if (fileDlg.ShowDialog() != true) {
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return;
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}
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string pathName = Path.GetFullPath(fileDlg.FileName);
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Debug.WriteLine("OUTPUT TO " + pathName);
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// Create the new file, and copy each file to it in order. We compute a total
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// CRC for the file contents as we go. (It's possible to combine the CRCs we already
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// have with some math; see e.g. https://stackoverflow.com/a/44061990/294248 .)
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uint totalCrc;
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long totalLen;
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try {
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using (FileStream stream = new FileStream(pathName, FileMode.Create)) {
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totalCrc = CopyAllFiles(stream);
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}
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totalLen = new FileInfo(pathName).Length;
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} catch (Exception ex) {
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string ecaption = (string)FindResource("str_FileAccessFailedCaption");
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string efmt = (string)FindResource("str_FileAccessFailedFmt");
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MessageBox.Show(string.Format(efmt, ex.Message), ecaption,
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MessageBoxButton.OK, MessageBoxImage.Error);
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return;
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}
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// TODO(someday): make all data available on the clipboard
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string caption = (string)FindResource("str_SuccessCaption");
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string fmt = (string)FindResource("str_SuccessMsgFmt");
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MessageBox.Show(string.Format(fmt, totalLen, "0x" + totalCrc.ToString("x8")),
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caption, MessageBoxButton.OK, MessageBoxImage.None);
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DialogResult = true;
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}
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private uint CopyAllFiles(Stream outStream) {
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byte[] buffer = new byte[256 * 1024];
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uint crc32 = 0;
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foreach (ConcatItem item in ConcatItems) {
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CopyFileToStreamWithCrc32(item.PathName, outStream, buffer, ref crc32);
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}
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return crc32;
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}
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/// <summary>
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/// Copies a file on disk to a Stream, computing a CRC-32 on the data. Throws an
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/// exception on file error.
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/// </summary>
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/// <param name="inputPath">Full path to input file.</param>
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/// <param name="outStream">Output data stream.</param>
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/// <param name="buffer">Data buffer, to avoid repeated allocations.</param>
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/// <param name="crc">CRC-32, initially zero.</param>
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public static void CopyFileToStreamWithCrc32(string inputPath, Stream outStream,
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byte[] buffer, ref uint crc) {
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using (FileStream inStream = new FileStream(inputPath, FileMode.Open,
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FileAccess.Read)) {
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while (true) {
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int actual = inStream.Read(buffer, 0, buffer.Length);
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if (actual == 0) {
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// end of stream
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return;
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}
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crc = CRC32.OnBuffer(crc, buffer, 0, actual);
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outStream.Write(buffer, 0, actual);
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}
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}
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}
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}
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}
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