SDL2 conversions

[lmemsm]

I'm working on several projects. One of my goals is to be able to port any of the SDL 1.2.x programs I use so they'll work with SDL 1.2.15 or with SDL 2.x. So far, I've added SDL 2 support to PDCurses. I believe some or all of those patches made it back into the official version. Other programs I've added SDL2 support for include bard, picaxo, sfontview, unifontview, perigee, SDL_Draw, pong, drac, yahtzee. More are in the works including Tuxmath. Bard is a lightweight epub reader with text to speech support. Picaxo is a lightweight graphics viewer. Sfontview is a lightweight TrueType font viewer. Unifontview is a font viewer that shows a font's entire character set including Unicode characters supported. Perigee is a graphics slideshow program. SDL_Draw is a graphics library for simple line drawing with SDL. I'm currently using it with wavetools to do the line drawing for a lightweight wave file viewer. The wave file viewer also builds with SDL 1.2.x or SDL 2.x.

Code/patches for many of the modifications I've made are available from a link at:
http://www.distasis.com/cpp/patches.htm
I'll be adding more modifications to various projects over time. Feel free to write if you're interesting in discussing a particular SDL 2 conversion further.