TImage DrawCircle cause core dump

ROOT
1

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ROOT Version: 6.39.01 lastest master
Platform: macos

```cpp

static void show_pic() {

  TImage* img = TASImage::Open("aa.jpeg", TASImage::kJpeg);

  img->DrawCircle(10, 10, 3, "#FF0000", 1);
}

[/Users/cx/software/ROOT/install/lib/libASImage.so] TASImage::DrawCircle(int, int, int, char const*, int) (no debug info)
[/Users/cx/software/ROOT/install/lib/libASImage.so] TASImage::DrawCircle(int, int, int, char const*, int) (no debug info)
[/Users/cx/software/ROOT/install/lib/libCling.so] cling::IncrementalExecutor::executeWrapper(llvm::StringRef, cling::Value*) const (no debug info)
[/Users/cx/software/ROOT/install/lib/libCling.so] cling::Interpreter::RunFunction(clang::FunctionDecl const*, cling::Value*) (no debug info)
[/Users/cx/software/ROOT/install/lib/libCling.so] cling::Interpreter::EvaluateInternal(std::__1::basic_string<char, std::__1::char_traits, std::__1::allocator> const&, cling::CompilationOptions, cling::Value*, cling::Transaction**, unsigned long) (no debug info)
[/Users/cx/software/ROOT/install/lib/libCling.so] cling::MetaSema::actOnxCommand(llvm::StringRef, llvm::StringRef, cling::Value*) (no debug info)
[/Users/cx/software/ROOT/install/lib/libCling.so] cling::MetaParser::isXCommand(cling::MetaSema::ActionResult&, cling::Value*) (no debug info)
[/Users/cx/software/ROOT/install/lib/libCling.so] cling::MetaParser::isCommand(cling::MetaSema::ActionResult&, cling::Value*) (no debug info)
[/Users/cx/software/ROOT/install/lib/libCling.so] cling::MetaProcessor::process(llvm::StringRef, cling::Interpreter::CompilationResult&, cling::Value*, bool) (no debug info)
[/Users/cx/software/ROOT/install/lib/libCling.so] HandleInterpreterException(cling::MetaProcessor*, char const*, cling::Interpreter::CompilationResult&, cling::Value*) (no debug info)
[/Users/cx/software/ROOT/install/lib/libCling.so] TCling::ProcessLine(char const*, TInterpreter::EErrorCode*) (no debug info)
[/Users/cx/software/ROOT/install/lib/libCling.so] TCling::ProcessLineSynch(char const*, TInterpreter::EErrorCode*) (no debug info)
[/Users/cx/software/ROOT/install/lib/libCore.so] TApplication::ExecuteFile(char const*, int*, bool) (no debug info)
[/Users/cx/software/ROOT/install/lib/libRint.so] TRint::ProcessLineNr(char const*, char const*, int*) (no debug info)
[/Users/cx/software/ROOT/install/lib/libRint.so] TRint::Run(bool) (no debug info)
[/Users/cx/software/ROOT/install/bin/root.exe] main (no debug info)
[/usr/lib/dyld] start (no debug info)

2

Thanks. Could you report it on GitHub ?

Just type .gh bug in the Root terminal and fill it out there.

3

Thanks for reporting the problem.

We will provide patch soon, but as workaround you can use drawing of dummy rectangle in the beginning:

img->DrawRectangle(0, 0, 0, 0, "#000000", 0);
img->DrawCircle(10, 10, 3, "#FF0000", 1);
4

PR: [afterimage] prevent nullptr access by ferdymercury · Pull Request #21860 · root-project/root · GitHub