Use surface instead of scan0 while image rotation if it is not empty

mono / libgdiplus

C-based implementation of the GDI+ API

http://www.mono-project.com/

MIT License

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Use surface instead of scan0 while image rotation if it is not empty #614

Closed RizvanKuliev closed 4 years ago

RizvanKuliev commented 4 years ago

While image rotating, surface existance and premultiplication format should be checked. In first case, surface should be usea as a source for rotting. In other case - old behaviour. See: bitmap.c@GdipBitmapGetPixel In the end of function old surface should be replaced to new one.

This opened task described problem and the way to reproduce: https://github.com/mono/mono/issues/17743

dnfclas commented 4 years ago

All CLA requirements met.