添加BSDIFF差分补丁算法工具

base/base.vcxproj

@@ -137,27 +137,27 @@
     <ConfigurationType>StaticLibrary</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>StaticLibrary</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>StaticLibrary</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>StaticLibrary</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v120_xp</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">

bin/resources/themes/default/basic/basic.xml

@@ -1,8 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<Window size="800,600" caption="0,0,0,35">
+<Window size="500,200" caption="0,0,0,35">
   <VBox bkcolor="bk_wnd_darkcolor">
     <HBox width="stretch" height="35" bkcolor="bk_wnd_lightcolor">
       <Control />
+      <Label name="tooltip" text="Bsdiff差分算法补丁生成器" margin="4,6,0,0"/>
+      <Control />
+
       <Button class="btn_wnd_min" name="minbtn" margin="4,6,0,0"/>
       <Box width="21" margin="4,6,0,0">
         <Button class="btn_wnd_max" name="maxbtn"/>
@@ -10,10 +13,25 @@
       </Box>
       <Button class="btn_wnd_close" name="closebtn" margin="4,6,8,0"/>
     </HBox>
-    <Box>
-      <VBox margin="0,0,0,0" valign="center" halign="center" width="auto" height="auto">
-        <Label name="tooltip" text="一个简单窗口，带有标题栏和常规按钮。"/>
+    <VBox width="stretch" height="stretch" margin="10,10,0,0">
+          <HBox>
+            <Label text="文件1" margin="0,10,0,0" height="40" width="80" font="arial_18"/>
+            <RichEdit class="simple input" width="300" name="uart_send_edit" height="30" margin="5,5,5,5" padding="6,6,6" font="arial_18"/>
+            <Button class="btn_global_blue_80x30" name="btn_do_open1" width="40"  text="打开" bkcolor="lightcolor" margin="25,3,5,3" font="arial_18" />
+          </HBox>
+        <HBox>
+          <Label text="文件2" margin="0,10,0,0" height="20" width="80" font="arial_18"/>
+          <RichEdit class="simple input" name="uart_send_edit" width="300"  height="30" margin="5,5,5,5" padding="6,6,6" font="arial_18"/>
+          <Button class="btn_global_blue_80x30" name="btn_do_open2" width="40" text="打开" bkcolor="lightcolor" margin="25,3,5,3" font="arial_18"/>
+        </HBox>
     </VBox>
-    </Box>
+    <HBox>
+      <Control />
+
+      <Button class="btn_global_blue_80x30" name="btn_do_generate" width="80" text="生成补丁" bkcolor="lightcolor" margin="25,3,5,3" font="arial_18"/>
+      <Control />
+
+    </HBox>
+
   </VBox>
 </Window>

bin/resources/themes/default/basic/bsdiff.xml

@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Window size="500,200" caption="0,0,0,35">
+  <VBox bkcolor="bk_wnd_darkcolor">
+    <HBox width="stretch" height="35" bkcolor="bk_wnd_lightcolor">
+      <Control />
+      <Label name="tooltip" text="Bsdiff差分算法补丁生成器" margin="4,6,0,0"/>
+      <Control />
+
+      <Button class="btn_wnd_min" name="minbtn" margin="4,6,0,0"/>
+      <Box width="21" margin="4,6,0,0">
+        <Button class="btn_wnd_max" name="maxbtn"/>
+        <Button class="btn_wnd_restore" name="restorebtn" visible="false"/>
+      </Box>
+      <Button class="btn_wnd_close" name="closebtn" margin="4,6,8,0"/>
+    </HBox>
+    <VBox width="stretch" height="stretch" margin="10,10,0,0">
+          <HBox>
+            <Label text="文件1" margin="0,10,0,0" height="40" width="80" font="arial_18"/>
+            <RichEdit class="simple input" width="300" name="file1" height="30" margin="5,5,5,5" padding="6,6,6" font="arial_18"/>
+            <Button class="btn_global_blue_80x30" name="btn_do_open1" width="80"  text="打开" bkcolor="lightcolor" margin="25,3,5,3" font="arial_18" />
+          </HBox>
+        <HBox>
+          <Label text="文件2" margin="0,10,0,0" height="20" width="80" font="arial_18"/>
+          <RichEdit class="simple input" name="file2" width="300"  height="30" margin="5,5,5,5" padding="6,6,6" font="arial_18"/>
+          <Button class="btn_global_blue_80x30" name="btn_do_open2" width="80" text="打开" bkcolor="lightcolor" margin="25,3,5,3" font="arial_18"/>
+        </HBox>
+    </VBox>
+    <HBox>
+      <Control />
+
+      <Button class="btn_global_blue_80x30" name="btn_do_generate" width="160" text="生成补丁" bkcolor="lightcolor" margin="25,3,5,3" font="arial_18"/>
+      <Control />
+
+    </HBox>
+
+  </VBox>
+</Window>

duilib/duilib.vcxproj

@@ -28,25 +28,25 @@
     <ConfigurationType>StaticLibrary</ConfigurationType>
     <UseOfMfc>false</UseOfMfc>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>StaticLibrary</ConfigurationType>
     <UseOfMfc>false</UseOfMfc>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>StaticLibrary</ConfigurationType>
     <UseOfMfc>false</UseOfMfc>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>StaticLibrary</ConfigurationType>
     <UseOfMfc>false</UseOfMfc>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">

examples/basic/basic.vcxproj

@@ -29,7 +29,7 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
@@ -42,7 +42,7 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">

examples/bsdiff/Resource.h

@@ -0,0 +1,29 @@
+//{{NO_DEPENDENCIES}}
+// Microsoft Visual C++ 生成的包含文件。
+// 供 basic.rc 使用
+//
+#define IDC_MYICON                      2
+#define IDD_BASIC_DIALOG                102
+#define IDS_APP_TITLE                   103
+#define IDD_ABOUTBOX                    103
+#define IDM_ABOUT                       104
+#define IDM_EXIT                        105
+#define IDI_BASIC                       107
+#define IDI_SMALL                       108
+#define IDC_BASIC                       109
+#define IDR_MAINFRAME                   128
+#define IDR_THEME1                      129
+#define IDR_THEME                       129
+#define IDC_STATIC                      -1
+
+// Next default values for new objects
+// 
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NO_MFC                     1
+#define _APS_NEXT_RESOURCE_VALUE        130
+#define _APS_NEXT_COMMAND_VALUE         32771
+#define _APS_NEXT_CONTROL_VALUE         1000
+#define _APS_NEXT_SYMED_VALUE           110
+#endif
+#endif

examples/bsdiff/basic_form.cpp

@@ -0,0 +1,247 @@
+#include "stdafx.h"
+#include "basic_form.h"
+
+#include <atlstr.h>
+#include <afxdlgs.h>
+#include <afxwin.h>
+#include <io.h>
+#include <iosfwd>
+#include <iostream>
+#include <ios>
+#include <fstream>
+#include <vector>
+#include <codecvt>
+extern"C" {
+	#include "bsdiff.h"
+	#include "bspatch.h"
+
+}
+
+const std::wstring BasicForm::kClassName = L"Basic";
+
+BasicForm::BasicForm()
+{
+}
+
+BasicForm::~BasicForm()
+{
+}
+
+std::wstring BasicForm::GetSkinFolder()
+{
+	return L"basic";
+}
+
+std::wstring BasicForm::GetSkinFile()
+{
+	return L"bsdiff.xml";
+}
+
+std::wstring BasicForm::GetWindowClassName() const
+{
+	return kClassName;
+}
+
+static int res_write(struct bsdiff_stream* stream, const void* buffer, int size)
+{
+	int bz2err;
+
+	//BZ2_bzWrite(&bz2err, bz2, (void*)buffer, size);
+	//if (bz2err != BZ_STREAM_END && bz2err != BZ_OK)
+	//	return -1;
+	if (stream->size == 0) {
+		stream->result = new char[8192000];
+		stream->size = 8192000;
+	}
+	memcpy(&stream->result[stream->len], buffer, size);
+	stream->len += size;
+
+	return 0;
+}
+
+LRESULT BasicForm::OnNcHitTest(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
+{
+	return WindowImplBase::OnNcHitTest(uMsg, wParam, lParam, bHandled);
+}
+
+inline std::string to_byte_string(const std::wstring& input)
+{
+	std::wstring_convert<std::codecvt_utf8<wchar_t>> converter;
+	return converter.to_bytes(input);
+}
+
+
+static int bz2_read( struct bspatch_stream* stream, void* buffer, int length)
+{
+	int n;
+	int bz2err;
+	char* addr = (char*)stream->opaque;
+	memcpy(buffer, &addr[stream->res_len], length);
+	stream->res_len += length;
+	return 0;
+}
+
+
+std::vector<char>* ReadFile(std::string path) {
+	std::vector<char>* ret = nullptr;
+	std::ifstream file(path.c_str(), std::ios::in | std::ios::binary);
+	if (file)
+	{
+		// 按照二进制格式读取数据
+		file.seekg(0, std::ios::end);
+		long long fileSize = file.tellg();
+		printf("size of firm: %lld\n", fileSize);
+
+		// 将读写位置移动到文件开头，申请内存，将固件内容存入buffer
+		file.seekg(0, std::ios::beg);
+		char* buffer = new char[fileSize];
+		file.read(buffer, sizeof(char) * fileSize);
+
+		ret = new std::vector<char>(buffer, buffer + sizeof(char) * fileSize);
+		file.close();
+	}
+	else
+	{
+		std::cout << "Failed to open file." << std::endl;
+	}
+	return ret;
+}
+
+void BasicForm::InitWindow() {
+
+	ui::Button* btn_open1 = dynamic_cast<ui::Button*>(FindControl(L"btn_do_open1"));
+	
+	ui::Button* btn_open2 = dynamic_cast<ui::Button*>(FindControl(L"btn_do_open2"));
+
+	ui::Button* btn_open3 = dynamic_cast<ui::Button*>(FindControl(L"btn_do_generate"));
+
+	mLabel1 = dynamic_cast<ui::RichEdit*>(FindControl(L"file1_dir"));
+	mLabel2 = dynamic_cast<ui::RichEdit*>(FindControl(L"file2_dir"));
+
+	btn_open1->AttachClick([this](ui::EventArgs*) {
+		CString				strFilter;
+		CString				str;
+		CString             m_strTmpFile;
+		CStdioFile			cfLogFile;
+
+		//会过滤出*.txt和*.dat的文件
+		strFilter = "dat file (*.*)|*.*";
+		CFileDialog TmpDlg(true, 0, 0, OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT, strFilter.GetBuffer(),
+			CWnd::FromHandle(this->m_hWnd));
+
+		if (TmpDlg.DoModal() == IDOK)
+		{
+			//获取文件路径
+			m_strTmpFile = TmpDlg.GetPathName();
+
+			mLabel1->SetText(std::wstring(m_strTmpFile));
+		}
+
+		return true;
+	});
+
+	btn_open2->AttachClick([this](ui::EventArgs*) {
+		CString				strFilter;
+		CString				str;
+		CString             m_strTmpFile;
+		CStdioFile			cfLogFile;
+
+		//会过滤出*.txt和*.dat的文件
+		strFilter = "dat file (*.*)|*.*";
+		CFileDialog TmpDlg(true, 0, 0, OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT, strFilter.GetBuffer(),
+			CWnd::FromHandle(this->m_hWnd));
+
+		if (TmpDlg.DoModal() == IDOK)
+		{
+			//获取文件路径
+			m_strTmpFile = TmpDlg.GetPathName();
+
+			mLabel2->SetText(std::wstring(m_strTmpFile));
+		}
+
+		return true;
+		});
+	
+	btn_open3->AttachClick([this](ui::EventArgs*) {
+		CString				strFilter;
+		CString				str;
+		CString             m_strTmpFile;
+		CStdioFile			cfLogFile;
+
+		if (mLabel1->GetText() == L"") {
+			AfxMessageBox(_T("请先打开文件"));
+
+			return false;
+		}
+
+
+		if (mLabel2->GetText() == L"") {
+			AfxMessageBox(_T("请先打开文件"));
+
+			return false;
+		}
+
+		std::vector<char>* v1 = ReadFile(to_byte_string(mLabel1->GetText()));
+		std::vector<char>* v2 = ReadFile(to_byte_string(mLabel2->GetText()));
+
+
+		//会过滤出*.txt和*.dat的文件
+		strFilter = "dat file (*.diff)|*.diff";
+		CFileDialog TmpDlg(true, 0, 0, OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT, strFilter.GetBuffer(),
+			CWnd::FromHandle(this->m_hWnd));
+
+		bsdiff_stream stream;
+		stream.malloc = &malloc;
+		stream.free = &free;
+		stream.write = &res_write;
+		stream.size = 0;
+		stream.len = 0;
+
+		int ret = bsdiff((uint8_t*)v1->data(), v1->size(),
+			(uint8_t*)v2->data(), v2->size(), &stream);
+
+			if (TmpDlg.DoModal() == IDOK)
+			{
+				//获取文件路径
+				m_strTmpFile = TmpDlg.GetPathName();
+
+				std::ofstream file(m_strTmpFile, std::ios::out | std::ios::binary);
+				file.write(reinterpret_cast<char*>(stream.result), stream.len);
+
+				file.flush();
+				file.close();
+
+				bspatch_stream rec;
+				rec.read = &bz2_read;
+				rec.opaque = (uint8_t*)stream.result;
+				rec.res_len = 0;
+				char *data = new char[v2->size()];
+
+				// 按照二进制格式读取数据
+				AfxMessageBox(_T("生成成功"));
+				int err = bspatch((uint8_t*)v1->data(), v1->size(), (uint8_t*)data, v2->size(), &rec);
+				if (err < 0) {
+
+				}
+
+				m_strTmpFile = "recover.hex";
+
+				std::ofstream file2(m_strTmpFile, std::ios::out | std::ios::binary);
+				file2.write(data, v2->size());
+
+				file2.flush();
+				file2.close();
+
+
+				return true;
+			}
+		}
+	);
+
+}
+
+LRESULT BasicForm::OnClose(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
+{
+	PostQuitMessage(0L);
+	return __super::OnClose(uMsg, wParam, lParam, bHandled);
+}

examples/bsdiff/basic_form.h

@@ -0,0 +1,34 @@
+#pragma once
+
+class BasicForm : public ui::WindowImplBase
+{
+public:
+	BasicForm();
+	~BasicForm();
+
+	/**
+	 * 一下三个接口是必须要覆写的接口，父类会调用这三个接口来构建窗口
+	 * GetSkinFolder		接口设置你要绘制的窗口皮肤资源路径
+	 * GetSkinFile			接口设置你要绘制的窗口的 xml 描述文件
+	 * GetWindowClassName	接口设置窗口唯一的类名称
+	 */
+	virtual std::wstring GetSkinFolder() override;
+	virtual std::wstring GetSkinFile() override;
+	virtual std::wstring GetWindowClassName() const override;
+	virtual LRESULT OnNcHitTest(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
+
+	/**
+	 * 收到 WM_CREATE 消息时该函数会被调用，通常做一些控件初始化的操作
+	 */
+	virtual void InitWindow() override;
+
+	/**
+	 * 收到 WM_CLOSE 消息时该函数会被调用
+	 */
+	virtual LRESULT OnClose(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
+
+	static const std::wstring kClassName;
+
+	ui::RichEdit* mLabel1;
+	ui::RichEdit* mLabel2;
+};

examples/bsdiff/bsdiff.c

@@ -0,0 +1,445 @@
+/*-
+ * Copyright 2003-2005 Colin Percival
+ * Copyright 2012 Matthew Endsley
+ * All rights reserved
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted providing that the following conditions 
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "bsdiff.h"
+
+#include <limits.h>
+#include <string.h>
+
+#define MIN(x,y) (((x)<(y)) ? (x) : (y))
+
+static void split(int64_t *I,int64_t *V,int64_t start,int64_t len,int64_t h)
+{
+	int64_t i,j,k,x,tmp,jj,kk;
+
+	if(len<16) {
+		for(k=start;k<start+len;k+=j) {
+			j=1;x=V[I[k]+h];
+			for(i=1;k+i<start+len;i++) {
+				if(V[I[k+i]+h]<x) {
+					x=V[I[k+i]+h];
+					j=0;
+				};
+				if(V[I[k+i]+h]==x) {
+					tmp=I[k+j];I[k+j]=I[k+i];I[k+i]=tmp;
+					j++;
+				};
+			};
+			for(i=0;i<j;i++) V[I[k+i]]=k+j-1;
+			if(j==1) I[k]=-1;
+		};
+		return;
+	};
+
+	x=V[I[start+len/2]+h];
+	jj=0;kk=0;
+	for(i=start;i<start+len;i++) {
+		if(V[I[i]+h]<x) jj++;
+		if(V[I[i]+h]==x) kk++;
+	};
+	jj+=start;kk+=jj;
+
+	i=start;j=0;k=0;
+	while(i<jj) {
+		if(V[I[i]+h]<x) {
+			i++;
+		} else if(V[I[i]+h]==x) {
+			tmp=I[i];I[i]=I[jj+j];I[jj+j]=tmp;
+			j++;
+		} else {
+			tmp=I[i];I[i]=I[kk+k];I[kk+k]=tmp;
+			k++;
+		};
+	};
+
+	while(jj+j<kk) {
+		if(V[I[jj+j]+h]==x) {
+			j++;
+		} else {
+			tmp=I[jj+j];I[jj+j]=I[kk+k];I[kk+k]=tmp;
+			k++;
+		};
+	};
+
+	if(jj>start) split(I,V,start,jj-start,h);
+
+	for(i=0;i<kk-jj;i++) V[I[jj+i]]=kk-1;
+	if(jj==kk-1) I[jj]=-1;
+
+	if(start+len>kk) split(I,V,kk,start+len-kk,h);
+}
+
+static void qsufsort(int64_t *I,int64_t *V,const uint8_t *old,int64_t oldsize)
+{
+	int64_t buckets[256];
+	int64_t i,h,len;
+
+	for(i=0;i<256;i++) buckets[i]=0;
+	for(i=0;i<oldsize;i++) buckets[old[i]]++;
+	for(i=1;i<256;i++) buckets[i]+=buckets[i-1];
+	for(i=255;i>0;i--) buckets[i]=buckets[i-1];
+	buckets[0]=0;
+
+	for(i=0;i<oldsize;i++) I[++buckets[old[i]]]=i;
+	I[0]=oldsize;
+	for(i=0;i<oldsize;i++) V[i]=buckets[old[i]];
+	V[oldsize]=0;
+	for(i=1;i<256;i++) if(buckets[i]==buckets[i-1]+1) I[buckets[i]]=-1;
+	I[0]=-1;
+
+	for(h=1;I[0]!=-(oldsize+1);h+=h) {
+		len=0;
+		for(i=0;i<oldsize+1;) {
+			if(I[i]<0) {
+				len-=I[i];
+				i-=I[i];
+			} else {
+				if(len) I[i-len]=-len;
+				len=V[I[i]]+1-i;
+				split(I,V,i,len,h);
+				i+=len;
+				len=0;
+			};
+		};
+		if(len) I[i-len]=-len;
+	};
+
+	for(i=0;i<oldsize+1;i++) I[V[i]]=i;
+}
+
+static int64_t matchlen(const uint8_t *old,int64_t oldsize,const uint8_t *new,int64_t newsize)
+{
+	int64_t i;
+
+	for(i=0;(i<oldsize)&&(i<newsize);i++)
+		if(old[i]!=new[i]) break;
+
+	return i;
+}
+
+static int64_t search(const int64_t *I,const uint8_t *old,int64_t oldsize,
+		const uint8_t *new,int64_t newsize,int64_t st,int64_t en,int64_t *pos)
+{
+	int64_t x,y;
+
+	if(en-st<2) {
+		x=matchlen(old+I[st],oldsize-I[st],new,newsize);
+		y=matchlen(old+I[en],oldsize-I[en],new,newsize);
+
+		if(x>y) {
+			*pos=I[st];
+			return x;
+		} else {
+			*pos=I[en];
+			return y;
+		}
+	};
+
+	x=st+(en-st)/2;
+	if(memcmp(old+I[x],new,MIN(oldsize-I[x],newsize))<0) {
+		return search(I,old,oldsize,new,newsize,x,en,pos);
+	} else {
+		return search(I,old,oldsize,new,newsize,st,x,pos);
+	};
+}
+
+static void offtout(int64_t x,uint8_t *buf)
+{
+	int64_t y;
+
+	if(x<0) y=-x; else y=x;
+
+	buf[0]=y%256;y-=buf[0];
+	y=y/256;buf[1]=y%256;y-=buf[1];
+	y=y/256;buf[2]=y%256;y-=buf[2];
+	y=y/256;buf[3]=y%256;y-=buf[3];
+	y=y/256;buf[4]=y%256;y-=buf[4];
+	y=y/256;buf[5]=y%256;y-=buf[5];
+	y=y/256;buf[6]=y%256;y-=buf[6];
+	y=y/256;buf[7]=y%256;
+
+	if(x<0) buf[7]|=0x80;
+}
+
+static int64_t writedata(struct bsdiff_stream* stream, const void* buffer, int64_t length)
+{
+	int64_t result = 0;
+
+	while (length > 0)
+	{
+		const int smallsize = (int)MIN(length, INT_MAX);
+		const int writeresult = stream->write(stream, buffer, smallsize);
+		if (writeresult == -1)
+		{
+			return -1;
+		}
+
+		result += writeresult;
+		length -= smallsize;
+		buffer = (uint8_t*)buffer + smallsize;
+	}
+
+	return result;
+}
+
+struct bsdiff_request
+{
+	const uint8_t* old;
+	int64_t oldsize;
+	const uint8_t* new1;
+	int64_t newsize;
+	struct bsdiff_stream* stream;
+	int64_t *I;
+	uint8_t *buffer;
+};
+
+static int bsdiff_internal(const struct bsdiff_request req)
+{
+	int64_t *I,*V;
+	int64_t scan,pos,len;
+	int64_t lastscan,lastpos,lastoffset;
+	int64_t oldscore,scsc;
+	int64_t s,Sf,lenf,Sb,lenb;
+	int64_t overlap,Ss,lens;
+	int64_t i;
+	uint8_t *buffer;
+	uint8_t buf[8 * 3];
+
+	if((V=req.stream->malloc((req.oldsize+1)*sizeof(int64_t)))==NULL) return -1;
+	I = req.I;
+
+	qsufsort(I,V,req.old,req.oldsize);
+	req.stream->free(V);
+
+	buffer = req.buffer;
+
+	/* Compute the differences, writing ctrl as we go */
+	scan=0;len=0;pos=0;
+	lastscan=0;lastpos=0;lastoffset=0;
+	while(scan<req.newsize) {
+		oldscore=0;
+
+		for(scsc=scan+=len;scan<req.newsize;scan++) {
+			len=search(I,req.old,req.oldsize,req.new1+scan,req.newsize-scan,
+					0,req.oldsize,&pos);
+
+			for(;scsc<scan+len;scsc++)
+			if((scsc+lastoffset<req.oldsize) &&
+				(req.old[scsc+lastoffset] == req.new1[scsc]))
+				oldscore++;
+
+			if(((len==oldscore) && (len!=0)) || 
+				(len>oldscore+8)) break;
+
+			if((scan+lastoffset<req.oldsize) &&
+				(req.old[scan+lastoffset] == req.new1[scan]))
+				oldscore--;
+		};
+
+		if((len!=oldscore) || (scan==req.newsize)) {
+			s=0;Sf=0;lenf=0;
+			for(i=0;(lastscan+i<scan)&&(lastpos+i<req.oldsize);) {
+				if(req.old[lastpos+i]==req.new1[lastscan+i]) s++;
+				i++;
+				if(s*2-i>Sf*2-lenf) { Sf=s; lenf=i; };
+			};
+
+			lenb=0;
+			if(scan<req.newsize) {
+				s=0;Sb=0;
+				for(i=1;(scan>=lastscan+i)&&(pos>=i);i++) {
+					if(req.old[pos-i]==req.new1[scan-i]) s++;
+					if(s*2-i>Sb*2-lenb) { Sb=s; lenb=i; };
+				};
+			};
+
+			if(lastscan+lenf>scan-lenb) {
+				overlap=(lastscan+lenf)-(scan-lenb);
+				s=0;Ss=0;lens=0;
+				for(i=0;i<overlap;i++) {
+					if(req.new1[lastscan+lenf-overlap+i]==
+					   req.old[lastpos+lenf-overlap+i]) s++;
+					if(req.new1[scan-lenb+i]==
+					   req.old[pos-lenb+i]) s--;
+					if(s>Ss) { Ss=s; lens=i+1; };
+				};
+
+				lenf+=lens-overlap;
+				lenb-=lens;
+			};
+
+			offtout(lenf,buf);
+			offtout((scan-lenb)-(lastscan+lenf),buf+8);
+			offtout((pos-lenb)-(lastpos+lenf),buf+16);
+
+			/* Write control data */
+			if (writedata(req.stream, buf, sizeof(buf)))
+				return -1;
+
+			/* Write diff data */
+			for(i=0;i<lenf;i++)
+				buffer[i]=req.new1[lastscan+i]-req.old[lastpos+i];
+			if (writedata(req.stream, buffer, lenf))
+				return -1;
+
+			/* Write extra data */
+			for(i=0;i<(scan-lenb)-(lastscan+lenf);i++)
+				buffer[i]=req.new1[lastscan+lenf+i];
+			if (writedata(req.stream, buffer, (scan-lenb)-(lastscan+lenf)))
+				return -1;
+
+			lastscan=scan-lenb;
+			lastpos=pos-lenb;
+			lastoffset=pos-scan;
+		};
+	};
+
+	return 0;
+}
+
+int bsdiff(const uint8_t* old, int64_t oldsize, const uint8_t* new1, int64_t newsize, struct bsdiff_stream* stream)
+{
+	int result;
+	struct bsdiff_request req;
+
+	if((req.I=stream->malloc((oldsize+1)*sizeof(int64_t)))==NULL)
+		return -1;
+
+	if((req.buffer=stream->malloc(newsize+1))==NULL)
+	{
+		stream->free(req.I);
+		return -1;
+	}
+
+	req.old = old;
+	req.oldsize = oldsize;
+	req.new1 = new1;
+	req.newsize = newsize;
+	req.stream = stream;
+
+	result = bsdiff_internal(req);
+
+	stream->free(req.buffer);
+	stream->free(req.I);
+
+	return result;
+}
+
+#if defined(BSDIFF_EXECUTABLE)
+
+#include <sys/types.h>
+
+#include <bzlib.h>
+#include <err.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+static int bz2_write(struct bsdiff_stream* stream, const void* buffer, int size)
+{
+	int bz2err;
+	BZFILE* bz2;
+
+	bz2 = (BZFILE*)stream->opaque;
+	BZ2_bzWrite(&bz2err, bz2, (void*)buffer, size);
+	if (bz2err != BZ_STREAM_END && bz2err != BZ_OK)
+		return -1;
+
+	return 0;
+}
+
+int main(int argc,char *argv[])
+{
+	int fd;
+	int bz2err;
+	uint8_t *old,*new;
+	off_t oldsize,newsize;
+	uint8_t buf[8];
+	FILE * pf;
+	struct bsdiff_stream stream;
+	BZFILE* bz2;
+
+	memset(&bz2, 0, sizeof(bz2));
+	stream.malloc = malloc;
+	stream.free = free;
+	stream.write = bz2_write;
+
+	if(argc!=4) errx(1,"usage: %s oldfile newfile patchfile\n",argv[0]);
+
+	/* Allocate oldsize+1 bytes instead of oldsize bytes to ensure
+		that we never try to malloc(0) and get a NULL pointer */
+	if(((fd=open(argv[1],O_RDONLY,0))<0) ||
+		((oldsize=lseek(fd,0,SEEK_END))==-1) ||
+		((old=malloc(oldsize+1))==NULL) ||
+		(lseek(fd,0,SEEK_SET)!=0) ||
+		(read(fd,old,oldsize)!=oldsize) ||
+		(close(fd)==-1)) err(1,"%s",argv[1]);
+
+
+	/* Allocate newsize+1 bytes instead of newsize bytes to ensure
+		that we never try to malloc(0) and get a NULL pointer */
+	if(((fd=open(argv[2],O_RDONLY,0))<0) ||
+		((newsize=lseek(fd,0,SEEK_END))==-1) ||
+		((new=malloc(newsize+1))==NULL) ||
+		(lseek(fd,0,SEEK_SET)!=0) ||
+		(read(fd,new,newsize)!=newsize) ||
+		(close(fd)==-1)) err(1,"%s",argv[2]);
+
+	/* Create the patch file */
+	if ((pf = fopen(argv[3], "w")) == NULL)
+		err(1, "%s", argv[3]);
+
+	/* Write header (signature+newsize)*/
+	offtout(newsize, buf);
+	if (fwrite("ENDSLEY/BSDIFF43", 16, 1, pf) != 1 ||
+		fwrite(buf, sizeof(buf), 1, pf) != 1)
+		err(1, "Failed to write header");
+
+
+	if (NULL == (bz2 = BZ2_bzWriteOpen(&bz2err, pf, 9, 0, 0)))
+		errx(1, "BZ2_bzWriteOpen, bz2err=%d", bz2err);
+
+	stream.opaque = bz2;
+	if (bsdiff(old, oldsize, new, newsize, &stream))
+		err(1, "bsdiff");
+
+	BZ2_bzWriteClose(&bz2err, bz2, 0, NULL, NULL);
+	if (bz2err != BZ_OK)
+		err(1, "BZ2_bzWriteClose, bz2err=%d", bz2err);
+
+	if (fclose(pf))
+		err(1, "fclose");
+
+	/* Free the memory we used */
+	free(old);
+	free(new);
+
+	return 0;
+}
+
+#endif

examples/bsdiff/bsdiff.h

@@ -0,0 +1,48 @@
+/*-
+ * Copyright 2003-2005 Colin Percival
+ * Copyright 2012 Matthew Endsley
+ * All rights reserved
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted providing that the following conditions 
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef BSDIFF_H
+# define BSDIFF_H
+
+# include <stddef.h>
+# include <stdint.h>
+
+struct bsdiff_stream
+{
+	void* opaque;
+
+	void* (*malloc)(size_t size);
+	void (*free)(void* ptr);
+	int (*write)(struct bsdiff_stream* stream, const void* buffer, int size);
+	char* result;
+	int size;
+	int len;
+};
+
+int bsdiff(const uint8_t* old, int64_t oldsize, const uint8_t* new1, int64_t newsize, struct bsdiff_stream* stream);
+
+#endif

examples/bsdiff/bsdiff.vcxproj

@@ -0,0 +1,174 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
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+    <VCProjectVersion>17.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{f9a0dd24-fd5a-4ccf-8945-3688ef808bfe}</ProjectGuid>
+    <RootNamespace>bsdiff</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
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+    <CharacterSet>Unicode</CharacterSet>
+    <UseOfMfc>Static</UseOfMfc>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
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+    <UseDebugLibraries>false</UseDebugLibraries>
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+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
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+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <IncludePath>G:\project\c++\nim_duilib;$(IncludePath)</IncludePath>
+    <LibraryPath>$(CommonExcludePath);$(LibraryPath)</LibraryPath>
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+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
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+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
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+      <ConformanceMode>true</ConformanceMode>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+    </ClCompile>
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+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClInclude Include="basic_form.h" />
+    <ClInclude Include="bsdiff.h" />
+    <ClInclude Include="bspatch.h" />
+    <ClInclude Include="framework.h" />
+    <ClInclude Include="main.h" />
+    <ClInclude Include="Resource.h" />
+    <ClInclude Include="targetver.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <Image Include="bsdiff.ico" />
+    <Image Include="small.ico" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="basic_form.cpp" />
+    <ClCompile Include="bsdiff.c" />
+    <ClCompile Include="bspatch.c" />
+    <ClCompile Include="main.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\base\base.vcxproj">
+      <Project>{8d9a6595-717a-41c8-b468-0011a72be3d1}</Project>
+    </ProjectReference>
+    <ProjectReference Include="..\..\duilib\duilib.vcxproj">
+      <Project>{e106acd7-4e53-4aee-942b-d0dd426db34e}</Project>
+    </ProjectReference>
+    <ProjectReference Include="..\..\ui_components\ui_components.vcxproj">
+      <Project>{0149ba6e-3c0a-426d-aa0a-0b9ec7742f19}</Project>
+    </ProjectReference>
+    <ProjectReference Include="..\libmodbus\libmodbus.vcxproj">
+      <Project>{6fb16778-49d1-4bfd-b135-4d1ba6b5d68a}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <Xml Include="..\..\bin\resources\themes\default\basic\bsdiff.xml" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

examples/bsdiff/bsdiff.vcxproj.filters

@@ -0,0 +1,67 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
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+    <Filter Include="头文件">
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+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="资源文件">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
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+  <ItemGroup>
+    <ClInclude Include="framework.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
+    <ClInclude Include="targetver.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
+    <ClInclude Include="Resource.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
+    <ClInclude Include="basic_form.h">
+      <Filter>源文件</Filter>
+    </ClInclude>
+    <ClInclude Include="main.h">
+      <Filter>源文件</Filter>
+    </ClInclude>
+    <ClInclude Include="bsdiff.h">
+      <Filter>源文件</Filter>
+    </ClInclude>
+    <ClInclude Include="bspatch.h">
+      <Filter>源文件</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <Image Include="small.ico">
+      <Filter>资源文件</Filter>
+    </Image>
+    <Image Include="bsdiff.ico">
+      <Filter>资源文件</Filter>
+    </Image>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="basic_form.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="main.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="bsdiff.c">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="bspatch.c">
+      <Filter>源文件</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <Xml Include="..\..\bin\resources\themes\default\basic\bsdiff.xml">
+      <Filter>资源文件</Filter>
+    </Xml>
+  </ItemGroup>
+</Project>