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fixes bugs reading icons

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16003 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Chris Elliott 2002-07-02 13:02:04 +00:00
parent 811ad6a199
commit 8dcfaa404e
1 changed files with 9 additions and 0 deletions
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9
src/common/imagbmp.cpp
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@ -1198,6 +1198,7 @@ int wxICOHandler::GetImageCount(wxInputStream& stream)
bool wxICOHandler::DoCanRead(wxInputStream& stream)
{
stream.SeekI(0);
unsigned char hdr[4];
if ( !stream.Read(hdr, WXSIZEOF(hdr)) )
return FALSE;
@ -1216,6 +1217,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxCURHandler, wxICOHandler)
bool wxCURHandler::DoCanRead(wxInputStream& stream)
{
stream.SeekI(0);
unsigned char hdr[4];
if ( !stream.Read(hdr, WXSIZEOF(hdr)) )
return FALSE;
@ -1256,6 +1258,8 @@ bool wxANIHandler::LoadFile(wxImage *image, wxInputStream& stream,
// we always have a data size
stream.Read(&datalen, 4);
datalen = wxINT32_SWAP_ON_BE(datalen) ;
//data should be padded to make even number of bytes
if (datalen % 2 == 1) datalen ++ ;
//now either data or a FCC
if ( (FCC1 == *riff32) || (FCC1 == *list32) )
{
@ -1293,6 +1297,7 @@ bool wxANIHandler::DoCanRead(wxInputStream& stream)
wxInt32 *list32 = (wxInt32 *) listtxt;
wxInt32 *anih32 = (wxInt32 *) anihtxt;
stream.SeekI(0);
if ( !stream.Read(&FCC1, 4) )
return FALSE;
@ -1307,6 +1312,8 @@ bool wxANIHandler::DoCanRead(wxInputStream& stream)
// we always have a data size:
stream.Read(&datalen, 4);
datalen = wxINT32_SWAP_ON_BE(datalen) ;
//data should be padded to make even number of bytes
if (datalen % 2 == 1) datalen ++ ;
// now either data or a FCC:
if ( (FCC1 == *riff32) || (FCC1 == *list32) )
{
@ -1351,6 +1358,8 @@ int wxANIHandler::GetImageCount(wxInputStream& stream)
// we always have a data size:
stream.Read(&datalen, 4);
datalen = wxINT32_SWAP_ON_BE(datalen) ;
//data should be padded to make even number of bytes
if (datalen % 2 == 1) datalen ++ ;
// now either data or a FCC:
if ( (FCC1 == *riff32) || (FCC1 == *list32) )
{