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SciTech MGL 4.05
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problems.txt
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SciTech MGL Graphics Library
Version 4.05
Known Problems and Things To Fix
May 12 1998
Internal rendering functions
----------------------------
1. Ellipse rendering is done using a new floating point DDA algorithm
to avoid the overflow problems the old integer algorithm had. The
ellipse code needs to be re-engineered with a new integer algorithm
that wont sufffer from overflow.
All the ellipse assembler functions are currently stubbed out and
the emulated floating point routine is used. Although this routine
is fast, the assembler integer routines would be faster if they were
fixed.
Microsoft Visual C++ 5.0 32-bit Windows support
-----------------------------------------------
1. The sample programs compiled fine from the command line with this
compiler, however when the samples were runs that displayed a dialog
box (such as the Game Framework BOUNCE program), the main dialog
box never came back. This behaviour is strange and I dont recall this
happening with the 4.2 version of the compiler. It is also strange
because both Borland C++ 4.52 and Watcom C++ 10.6 and 11.0 all run
these programs properly.
I have not tried this building the program from an IDE file, so it
could be something related to the command line build process.
---- END OF PROBLEMS.TXT ----