Amebis/wxWidgets
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fix loading ICO from socket stream: override OnSysTell and OnSysSeek rather than directly SeekO/I or TellO/I; in wxICOHandler only call SeekI() if we have a non-null seek offset

Browse Source 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@60856 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Francesco Montorsi
2009-06-01 13:56:41 +00:00
parent 77782a5c5f
commit a9a2485d64
2 changed files with 31 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
src/common/imagbmp.cpp
View File

@@ -1280,11 +1280,11 @@ bool wxICOHandler::DoLoadFile(wxImage *image, wxInputStream& stream,
int iSel = wxNOT_FOUND;
// remember how many bytes we read from the stream:
wxFileOffset offset = sizeof(IconDir);
wxFileOffset alreadySeeked = sizeof(IconDir);
for (unsigned int i = 0; i < nIcons; i++ )
{
offset += stream.Read(pCurrentEntry, sizeof(ICONDIRENTRY)).LastRead();
alreadySeeked += stream.Read(pCurrentEntry, sizeof(ICONDIRENTRY)).LastRead();
// bHeight and bColorCount are wxUint8
if ( pCurrentEntry->bWidth >= wMax )
@@ -1322,8 +1322,8 @@ bool wxICOHandler::DoLoadFile(wxImage *image, wxInputStream& stream,
// NOTE: seeking a positive amount in wxFromCurrent mode allows us to
// load even non-seekable streams (see wxInputStream::SeekI docs)!
if (stream.SeekI(wxUINT32_SWAP_ON_BE(pCurrentEntry->dwImageOffset) - offset,
wxFromCurrent) == wxInvalidOffset)
wxFileOffset offset = wxUINT32_SWAP_ON_BE(pCurrentEntry->dwImageOffset) - alreadySeeked;
if (offset != 0 && stream.SeekI(offset, wxFromCurrent) == wxInvalidOffset)
return false;
bResult = LoadDib(image, stream, true, IsBmp);