https://bugs.winehq.org/show_bug.cgi?id=52440 Bug ID: 52440 Summary: GdipRotateWorldTransform+GdipDrawImage draws wrong Product: Wine Version: 7.0 Hardware: x86-64 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: gdiplus Assignee: wine-bugs(a)winehq.org Reporter: hjkl(a)quantentunnel.de Distribution: --- Created attachment 71713 --> https://bugs.winehq.org/attachment.cgi?id=71713 Example to reproduce issue The image output of GdipDrawImage is wrong if applying a rotation with GdipRotateWorldTransform. I attached an example to reproduce the issue. The .zip file contains: WindowsOutput.png: screenshot of how Windows paints it WineOutput.png: screenshot of how Wine paints it (on Debian 11.2) source: the according source code (Visual C++ 2019 solution), source\x64\Release\Example.exe is the compiled EXE. The example loads "image.png" from the same directory (just a 16x16 pixels red block) and shows it with the rotation. This is the critical code: Gdiplus::DllExports::GdipRotateWorldTransform(pGr, 10, Gdiplus::MatrixOrderAppend); Gdiplus::DllExports::GdipDrawImage(pGr, g_pImg, 100, 50); Thanks in advance! -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.