[taglib] backport fixes for ABI breakage (wrt taglib-1.8) (#1026080, #1027164)

Rex Dieter rdieter at fedoraproject.org
Tue Nov 26 15:02:13 UTC 2013


commit 00b32434e5b9776da50728a8de4b905e9075131f
Author: Rex Dieter <rdieter at math.unl.edu>
Date:   Tue Nov 26 09:02:03 2013 -0600

    backport fixes for ABI breakage (wrt taglib-1.8) (#1026080, #1027164)

 0002-Fixed-ABI-breakage-in-TagLib-String.patch |  107 +++++++++++++++++++
 0003-Rewrote-ByteVector-replace-simpler.patch  |  131 ++++++++++++++++++++++++
 taglib.spec                                    |   12 ++-
 3 files changed, 249 insertions(+), 1 deletions(-)
---
diff --git a/0002-Fixed-ABI-breakage-in-TagLib-String.patch b/0002-Fixed-ABI-breakage-in-TagLib-String.patch
new file mode 100644
index 0000000..930439f
--- /dev/null
+++ b/0002-Fixed-ABI-breakage-in-TagLib-String.patch
@@ -0,0 +1,107 @@
+From 3bf30af66c8fd77a88d9379a0956ddb2fc70dc20 Mon Sep 17 00:00:00 2001
+From: Tsuda Kageyu <tsuda.kageyu at gmail.com>
+Date: Wed, 6 Nov 2013 17:01:21 +0900
+Subject: [PATCH 2/6] Fixed ABI breakage in TagLib::String
+
+---
+ taglib/toolkit/tstring.cpp | 20 ++++++++++++++++++--
+ taglib/toolkit/tstring.h   | 12 ++++++++++--
+ tests/test_string.cpp      | 14 ++++++++++++++
+ 3 files changed, 42 insertions(+), 4 deletions(-)
+
+diff --git a/taglib/toolkit/tstring.cpp b/taglib/toolkit/tstring.cpp
+index 75a9833..fb6e947 100644
+--- a/taglib/toolkit/tstring.cpp
++++ b/taglib/toolkit/tstring.cpp
+@@ -209,8 +209,16 @@ String::String(const std::string &s, Type t)
+ String::String(const wstring &s, Type t)
+   : d(new StringPrivate())
+ {
+-  if(t == UTF16 || t == UTF16BE || t == UTF16LE)
++  if(t == UTF16 || t == UTF16BE || t == UTF16LE) {
++    // This looks ugly but needed for the compatibility with TagLib1.8. 
++    // Should be removed in TabLib2.0.
++    if (t == UTF16BE)
++      t = WCharByteOrder;
++    else if (t == UTF16LE)
++      t = (WCharByteOrder == UTF16LE ? UTF16BE : UTF16LE);
++
+     copyFromUTF16(s.c_str(), s.length(), t);
++  }
+   else {
+     debug("String::String() -- A TagLib::wstring should not contain Latin1 or UTF-8.");
+   }
+@@ -219,8 +227,16 @@ String::String(const wstring &s, Type t)
+ String::String(const wchar_t *s, Type t)
+   : d(new StringPrivate())
+ {
+-  if(t == UTF16 || t == UTF16BE || t == UTF16LE)
++  if(t == UTF16 || t == UTF16BE || t == UTF16LE) {
++    // This looks ugly but needed for the compatibility with TagLib1.8. 
++    // Should be removed in TabLib2.0.
++    if (t == UTF16BE)
++      t = WCharByteOrder;
++    else if (t == UTF16LE)
++      t = (WCharByteOrder == UTF16LE ? UTF16BE : UTF16LE);
++
+     copyFromUTF16(s, ::wcslen(s), t);
++  }
+   else {
+     debug("String::String() -- A const wchar_t * should not contain Latin1 or UTF-8.");
+   }
+diff --git a/taglib/toolkit/tstring.h b/taglib/toolkit/tstring.h
+index 57945be..605b9c2 100644
+--- a/taglib/toolkit/tstring.h
++++ b/taglib/toolkit/tstring.h
+@@ -134,13 +134,21 @@ namespace TagLib {
+ 
+     /*!
+      * Makes a deep copy of the data in \a s.
++     *
++     * /note If \a t is UTF16LE, the byte order of \a s will be swapped regardless 
++     * of the CPU byte order.  If UTF16BE, it will not be swapped.  This behavior
++     * will be changed in TagLib2.0.
+      */
+-    String(const wstring &s, Type t = WCharByteOrder);
++    String(const wstring &s, Type t = UTF16BE);
+ 
+     /*!
+      * Makes a deep copy of the data in \a s.
++     *
++     * /note If \a t is UTF16LE, the byte order of \a s will be swapped regardless 
++     * of the CPU byte order.  If UTF16BE, it will not be swapped.  This behavior
++     * will be changed in TagLib2.0.
+      */
+-    String(const wchar_t *s, Type t = WCharByteOrder);
++    String(const wchar_t *s, Type t = UTF16BE);
+ 
+     /*!
+      * Makes a deep copy of the data in \a c.
+diff --git a/tests/test_string.cpp b/tests/test_string.cpp
+index a815a0b..9a574b3 100644
+--- a/tests/test_string.cpp
++++ b/tests/test_string.cpp
+@@ -75,6 +75,20 @@ public:
+ 	String unicode3(L"\u65E5\u672C\u8A9E");
+ 	CPPUNIT_ASSERT(*(unicode3.toCWString() + 1) == L'\u672C');
+ 
++    String unicode4(L"\u65e5\u672c\u8a9e", String::UTF16BE);
++    CPPUNIT_ASSERT(unicode4[1] == L'\u672c');
++
++    String unicode5(L"\u65e5\u672c\u8a9e", String::UTF16LE);
++    CPPUNIT_ASSERT(unicode5[1] == L'\u2c67');
++
++    wstring stduni = L"\u65e5\u672c\u8a9e";
++
++    String unicode6(stduni, String::UTF16BE);
++    CPPUNIT_ASSERT(unicode6[1] == L'\u672c');
++
++    String unicode7(stduni, String::UTF16LE);
++    CPPUNIT_ASSERT(unicode7[1] == L'\u2c67');
++
+     CPPUNIT_ASSERT(strcmp(String::number(0).toCString(), "0") == 0);
+     CPPUNIT_ASSERT(strcmp(String::number(12345678).toCString(), "12345678") == 0);
+     CPPUNIT_ASSERT(strcmp(String::number(-12345678).toCString(), "-12345678") == 0);
+-- 
+1.8.4.2
+
diff --git a/0003-Rewrote-ByteVector-replace-simpler.patch b/0003-Rewrote-ByteVector-replace-simpler.patch
new file mode 100644
index 0000000..0b134ec
--- /dev/null
+++ b/0003-Rewrote-ByteVector-replace-simpler.patch
@@ -0,0 +1,131 @@
+From 4a7d31c87bf41c1de21cb725176d5b34c2a95720 Mon Sep 17 00:00:00 2001
+From: Tsuda Kageyu <tsuda.kageyu at gmail.com>
+Date: Thu, 14 Nov 2013 14:05:32 +0900
+Subject: [PATCH 3/6] Rewrote ByteVector::replace() simpler
+
+---
+ taglib/toolkit/tbytevector.cpp | 77 +++++++++++++++---------------------------
+ tests/test_bytevector.cpp      |  5 +++
+ 2 files changed, 33 insertions(+), 49 deletions(-)
+
+diff --git a/taglib/toolkit/tbytevector.cpp b/taglib/toolkit/tbytevector.cpp
+index b658246..566a20f 100644
+--- a/taglib/toolkit/tbytevector.cpp
++++ b/taglib/toolkit/tbytevector.cpp
+@@ -31,6 +31,7 @@
+ #include <iostream>
+ #include <cstdio>
+ #include <cstring>
++#include <cstddef>
+ 
+ #include <tstring.h>
+ #include <tdebug.h>
+@@ -508,62 +509,40 @@ ByteVector &ByteVector::replace(const ByteVector &pattern, const ByteVector &wit
+   if(pattern.size() == 0 || pattern.size() > size())
+     return *this;
+ 
+-  const uint withSize = with.size();
+-  const uint patternSize = pattern.size();
+-  int offset = 0;
++  const size_t withSize    = with.size();
++  const size_t patternSize = pattern.size();
++  const ptrdiff_t diff = withSize - patternSize;
++  
++  size_t offset = 0;
++  while (true)
++  {
++    offset = find(pattern, offset);
++    if(offset == static_cast<size_t>(-1)) // Use npos in taglib2.
++      break;
+ 
+-  if(withSize == patternSize) {
+-    // I think this case might be common enough to optimize it
+     detach();
+-    offset = find(pattern);
+-    while(offset >= 0) {
+-      ::memcpy(data() + offset, with.data(), withSize);
+-      offset = find(pattern, offset + withSize);
+-    }
+-    return *this;
+-  }
+ 
+-  // calculate new size:
+-  uint newSize = 0;
+-  for(;;) {
+-    int next = find(pattern, offset);
+-    if(next < 0) {
+-      if(offset == 0)
+-        // pattern not found, do nothing:
+-        return *this;
+-      newSize += size() - offset;
+-      break;
++    if(diff < 0) {
++      ::memmove(
++        data() + offset + withSize, 
++        data() + offset + patternSize, 
++        size() - offset - patternSize);
++      resize(size() + diff);
+     }
+-    newSize += (next - offset) + withSize;
+-    offset = next + patternSize;
+-  }
+-
+-  // new private data of appropriate size:
+-  ByteVectorPrivate *newData = new ByteVectorPrivate(newSize, 0);
+-  char *target = DATA(newData);
+-  const char *source = data();
+-
+-  // copy modified data into new private data:
+-  offset = 0;
+-  for(;;) {
+-    int next = find(pattern, offset);
+-    if(next < 0) {
+-      ::memcpy(target, source + offset, size() - offset);
+-      break;
++    else if(diff > 0) {
++      resize(size() + diff);
++      ::memmove(
++        data() + offset + withSize, 
++        data() + offset + patternSize, 
++        size() - diff - offset - patternSize);
+     }
+-    int chunkSize = next - offset;
+-    ::memcpy(target, source + offset, chunkSize);
+-    target += chunkSize;
+-    ::memcpy(target, with.data(), withSize);
+-    target += withSize;
+-    offset += chunkSize + patternSize;
+-  }
+ 
+-  // replace private data:
+-  if(d->deref())
+-    delete d;
++    ::memcpy(data() + offset, with.data(), with.size());
+ 
+-  d = newData;
++    offset += withSize;
++    if(offset > size() - patternSize)
++      break;
++  }
+ 
+   return *this;
+ }
+diff --git a/tests/test_bytevector.cpp b/tests/test_bytevector.cpp
+index 9efd23a..eca74f8 100644
+--- a/tests/test_bytevector.cpp
++++ b/tests/test_bytevector.cpp
+@@ -239,6 +239,11 @@ public:
+       a.replace(ByteVector("ab"), ByteVector());
+       CPPUNIT_ASSERT_EQUAL(ByteVector("cdf"), a);
+     }
++    {
++      ByteVector a("abcdabf");
++      a.replace(ByteVector("bf"), ByteVector("x"));
++      CPPUNIT_ASSERT_EQUAL(ByteVector("abcdax"), a);
++    }
+   }
+ 
+ };
+-- 
+1.8.4.2
+
diff --git a/taglib.spec b/taglib.spec
index 7778f62..56f04f9 100644
--- a/taglib.spec
+++ b/taglib.spec
@@ -6,7 +6,7 @@
 Name:       taglib	
 Summary:    Audio Meta-Data Library
 Version:    1.9.1
-Release:    1%{?dist}
+Release:    2%{?dist}
 
 License:    LGPLv2 and MPL
 #URL:       http://launchpad.net/taglib
@@ -25,6 +25,10 @@ Patch1:     taglib-1.5b1-multilib.patch
 # try 2, kiss omit -L%_libdir
 Patch2:     taglib-1.5rc1-multilib.patch
 
+## upstream patches
+Patch1002: 0002-Fixed-ABI-breakage-in-TagLib-String.patch
+Patch1003: 0003-Rewrote-ByteVector-replace-simpler.patch
+
 BuildRequires: cmake
 BuildRequires: pkgconfig
 BuildRequires: zlib-devel
@@ -65,6 +69,9 @@ Files needed when building software with %{name}.
 ## omit for now
 %patch2 -p1 -b .multilib
 
+%patch1002 -p1 -b .0002
+%patch1003 -p1 -b .0003
+
 
 %build
 mkdir -p %{_target_platform}
@@ -128,6 +135,9 @@ make check -C %{_target_platform}
 
 
 %changelog
+* Tue Nov 26 2013 Rex Dieter <rdieter at fedoraproject.org> 1.9.1-2
+- backport fixes for ABI breakage (wrt taglib-1.8) (#1026080, #1027164)
+
 * Tue Oct 08 2013 Rex Dieter <rdieter at fedoraproject.org> 1.9.1-1
 - taglib-1.9.1
 


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