This change also unveiled a serious problem: the same include files are used EVERYWHERE (e.g. code manipulating the screen is using sound includes). Added a FIXME concerning this
- Optimized drawing code; now only items (sprites, text, screen masks) which have changed from the previous frame are redrawn, this speeds up things a lot
- Implemented dirty rectangles using a microtile array
- The previously committed Microtile Array implementation from SEL seemed buggy so I wrote my own version which works nicely so far (and is less code and GPL), only MicroTileArray::getRectangles uses parts from the old version, this will be changed later
- One known bug related to dirty rectangles remains: Sometimes the background isn't restored correctly and gfx artifacts are visible
At load time, a Surface is created for each screen mask, in which the gfx data from the background is copied.
This is the first step towards more optimized gfx rendering (more to come later).
