daniel/QTeletextMaker
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fix crash when loading too-short OL lines

Browse Source
This commit is contained in:
G.K.MacGregor
2020-11-04 23:23:39 +00:00
parent 3ebfbff369
commit 6b168ef9ac
1 changed files with 11 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
levelonepage.cpp
View File

@@ -363,6 +363,17 @@ void LevelOnePage::loadPagePacket(QByteArray &inLine)
setPacket(lineNumber, inLine); setPacket(lineNumber, inLine);
} else { } else {
int designationCode = inLine.at(0) & 0x3f; int designationCode = inLine.at(0) & 0x3f;
if (inLine.size() < 40)
// OL is too short!
if (lineNumber == 26) {
// For a too-short enhancement triplets OL, first trim the line down to nearest whole triplet
inLine.resize((inLine.size() / 3 * 3) + 1);
// Then use "dummy" enhancement triplets to extend the line to the proper length
for (int i=inLine.size(); i<40; i+=3)
inLine.append("i^@"); // Address 41, Mode 0x1e, Data 0
} else
// For other triplet OLs and Hamming 8/4 OLs, just pad with zero data
inLine.leftJustified(40, '@');
for (int i=1; i<=39; i++) for (int i=1; i<=39; i++)
inLine[i] = inLine.at(i) & 0x3f; inLine[i] = inLine.at(i) & 0x3f;
setPacket(lineNumber, designationCode, inLine); setPacket(lineNumber, designationCode, inLine);