X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/10793ebfbb49d48e6a97f8e2d02081f458bd80b4..74a8f67d96591cec101def2a7d47c64072aff7fd:/src/common/zstream.cpp?ds=sidebyside

diff --git a/src/common/zstream.cpp b/src/common/zstream.cpp
index ab71f710f8..739a58e836 100644
--- a/src/common/zstream.cpp
+++ b/src/common/zstream.cpp
@@ -1,5 +1,5 @@
 //////////////////////////////////////////////////////////////////////////////
-// Name:        zstream.cpp
+// Name:        src/common/zstream.cpp
 // Purpose:     Compressed stream classes
 // Author:      Guilhem Lavaux
 // Modified by: Mike Wetherell
@@ -13,24 +13,29 @@
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-  #pragma hdrstop
+    #pragma hdrstop
 #endif
 
 #if wxUSE_ZLIB && wxUSE_STREAMS
 
 #include "wx/zstream.h"
-#include "wx/utils.h"
-#include "wx/intl.h"
-#include "wx/log.h"
+#include "wx/versioninfo.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/intl.h"
+    #include "wx/log.h"
+    #include "wx/utils.h"
+#endif
+
 
 // normally, the compiler options should contain -I../zlib, but it is
 // apparently not the case for all MSW makefiles and so, unless we use
 // configure (which defines __WX_SETUP_H__) or it is explicitly overridden by
 // the user (who can define wxUSE_ZLIB_H_IN_PATH), we hardcode the path here
 #if defined(__WXMSW__) && !defined(__WX_SETUP_H__) && !defined(wxUSE_ZLIB_H_IN_PATH)
-   #include "../zlib/zlib.h"
+    #include "../zlib/zlib.h"
 #else
-   #include "zlib.h"
+    #include "zlib.h"
 #endif
 
 enum {
@@ -39,25 +44,103 @@ enum {
     ZSTREAM_AUTO        = 0x20      // auto detect between gzip and zlib
 };
 
+
+wxVersionInfo wxGetZlibVersionInfo()
+{
+    return wxVersionInfo("zlib",
+                         ZLIB_VERNUM >> 12,
+                         (ZLIB_VERNUM >> 8) & 0x0F,
+                         (ZLIB_VERNUM & 0xFF) / 0x10);
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// Zlib Class factory
+
+IMPLEMENT_DYNAMIC_CLASS(wxZlibClassFactory, wxFilterClassFactory)
+
+static wxZlibClassFactory g_wxZlibClassFactory;
+
+wxZlibClassFactory::wxZlibClassFactory()
+{
+    if (this == &g_wxZlibClassFactory)
+        PushFront();
+}
+
+const wxChar * const *
+wxZlibClassFactory::GetProtocols(wxStreamProtocolType type) const
+{
+    static const wxChar *mimes[] = { wxT("application/x-deflate"), NULL };
+    static const wxChar *encs[] =  { wxT("deflate"), NULL };
+    static const wxChar *empty[] = { NULL };
+
+    switch (type) {
+        case wxSTREAM_MIMETYPE:         return mimes;
+        case wxSTREAM_ENCODING:         return encs;
+        default:                        return empty;
+    }
+}
+
+
+/////////////////////////////////////////////////////////////////////////////
+// Gzip Class factory
+
+IMPLEMENT_DYNAMIC_CLASS(wxGzipClassFactory, wxFilterClassFactory)
+
+static wxGzipClassFactory g_wxGzipClassFactory;
+
+wxGzipClassFactory::wxGzipClassFactory()
+{
+    if (this == &g_wxGzipClassFactory && wxZlibInputStream::CanHandleGZip())
+        PushFront();
+}
+
+const wxChar * const *
+wxGzipClassFactory::GetProtocols(wxStreamProtocolType type) const
+{
+    static const wxChar *protos[] =
+        { wxT("gzip"), NULL };
+    static const wxChar *mimes[] =
+        { wxT("application/gzip"), wxT("application/x-gzip"), NULL };
+    static const wxChar *encs[] =
+        { wxT("gzip"), NULL };
+    static const wxChar *exts[] =
+        { wxT(".gz"), wxT(".gzip"), NULL };
+    static const wxChar *empty[] =
+        { NULL };
+
+    switch (type) {
+        case wxSTREAM_PROTOCOL: return protos;
+        case wxSTREAM_MIMETYPE: return mimes;
+        case wxSTREAM_ENCODING: return encs;
+        case wxSTREAM_FILEEXT:  return exts;
+        default:                return empty;
+    }
+}
+
+
 //////////////////////
 // wxZlibInputStream
 //////////////////////
 
 wxZlibInputStream::wxZlibInputStream(wxInputStream& stream, int flags)
   : wxFilterInputStream(stream)
+{
+    Init(flags);
+}
+
+wxZlibInputStream::wxZlibInputStream(wxInputStream *stream, int flags)
+  : wxFilterInputStream(stream)
+{
+    Init(flags);
+}
+
+void wxZlibInputStream::Init(int flags)
 {
   m_inflate = NULL;
   m_z_buffer = new unsigned char[ZSTREAM_BUFFER_SIZE];
   m_z_size = ZSTREAM_BUFFER_SIZE;
   m_pos = 0;
 
-#if WXWIN_COMPATIBILITY_2_4
-  // treat compatibility mode as auto
-  m_24compatibilty = flags == wxZLIB_24COMPATIBLE;
-  if (m_24compatibilty)
-    flags = wxZLIB_AUTO;
-#endif
-
   // if gzip is asked for but not supported...
   if ((flags == wxZLIB_GZIP || flags == wxZLIB_AUTO) && !CanHandleGZip()) {
     if (flags == wxZLIB_AUTO) {
@@ -150,12 +233,9 @@ size_t wxZlibInputStream::OnSysRead(void *buffer, size_t size)
       // by the parent strean,
       m_lasterror = wxSTREAM_READ_ERROR;
       if (m_parent_i_stream->Eof())
-#if WXWIN_COMPATIBILITY_2_4
-        if (m_24compatibilty)
-          m_lasterror = wxSTREAM_EOF;
-        else
-#endif
+      {
           wxLogError(_("Can't read inflate stream: unexpected EOF in underlying stream."));
+      }
       break;
 
     default:
@@ -179,6 +259,16 @@ size_t wxZlibInputStream::OnSysRead(void *buffer, size_t size)
   return major > 1 || (major == 1 && minor >= 2);
 }
 
+bool wxZlibInputStream::SetDictionary(const char *data, const size_t datalen)
+{
+    return (inflateSetDictionary(m_inflate, (Bytef*)data, datalen) == Z_OK);
+}
+
+bool wxZlibInputStream::SetDictionary(const wxMemoryBuffer &buf)
+{
+    return SetDictionary((char*)buf.GetData(), buf.GetDataLen());
+}
+
 
 //////////////////////
 // wxZlibOutputStream
@@ -188,6 +278,19 @@ wxZlibOutputStream::wxZlibOutputStream(wxOutputStream& stream,
                                        int level,
                                        int flags)
  : wxFilterOutputStream(stream)
+{
+    Init(level, flags);
+}
+
+wxZlibOutputStream::wxZlibOutputStream(wxOutputStream *stream,
+                                       int level,
+                                       int flags)
+ : wxFilterOutputStream(stream)
+{
+    Init(level, flags);
+}
+
+void wxZlibOutputStream::Init(int level, int flags)
 {
   m_deflate = NULL;
   m_z_buffer = new unsigned char[ZSTREAM_BUFFER_SIZE];
@@ -241,12 +344,10 @@ bool wxZlibOutputStream::Close()
  {
   DoFlush(true);
    deflateEnd(m_deflate);
-   delete m_deflate;
+   wxDELETE(m_deflate);
+   wxDELETEA(m_z_buffer);
 
-  m_deflate = NULL;
-   delete[] m_z_buffer;
-  m_z_buffer = NULL;
-  return IsOk();
+  return wxFilterOutputStream::Close() && IsOk();
  }
 
 void wxZlibOutputStream::DoFlush(bool final)
@@ -284,8 +385,8 @@ size_t wxZlibOutputStream::OnSysWrite(const void *buffer, size_t size)
 
   if (!m_deflate || !m_z_buffer)
   {
+    // notice that this will make IsOk() test just below return false
     m_lasterror = wxSTREAM_WRITE_ERROR;
-    return 0;
   }
 
   if (!IsOk() || !size)
@@ -329,6 +430,15 @@ size_t wxZlibOutputStream::OnSysWrite(const void *buffer, size_t size)
   return wxZlibInputStream::CanHandleGZip();
 }
 
+bool wxZlibOutputStream::SetDictionary(const char *data, const size_t datalen)
+{
+    return (deflateSetDictionary(m_deflate, (Bytef*)data, datalen) == Z_OK);
+}
+
+bool wxZlibOutputStream::SetDictionary(const wxMemoryBuffer &buf)
+{
+    return SetDictionary((char*)buf.GetData(), buf.GetDataLen());
+}
+
 #endif
   // wxUSE_ZLIB && wxUSE_STREAMS
-