block surfaces. (A block surface is a 64x64 tile of a parallax layer.)
I've also done a few things to try and optimize the drawing:
* The back buffer is no longer cleared between frames. This may cause
regressions, but I do believe that the entire picture area is always
completely re-rendered for each frame.
As a result of this, the menu code is now responsible for clearing the
icon areas itself.
* A few unnecessary copy_rect() calls were commented out in favor of one
big copy_rect() in ServiceWindows().
* Completely opaque block surfaces are copied with memcpy(), one line at a
time.
Unless we manage to add intelligent screen redrawing, I don't think it will
get that much faster than this, though there is some unnecessary data
copying in DrawSprite() that could be removed.
And the game is still a terrible CPU hog. I believe the animation runs at
approximately 12 fps. If there's still time left, it will pump out further
frames to get smooth scrolling. We ought to put a cap on that, and if it
has already reached the scroll target it should sleep for the rest of the
render cycle.
svn-id: r9886
for the making it a timer handler. This should eliminate the occasional
glitches I've been seeing with fades not being completed.
I'm also hoping that it will fix the problem where the game would sometimes
hang when moving between rooms. I know that at least once when I had that
happen to me the game was busy-waiting for the palette to fade.
At the very least, it's one place less to worry about thread-safety in.
svn-id: r9854
unnecessary stuff from our own Surface class. The former allows the in-game
dialogs to at least sort of work, and the latter gained me a few frames per
second, according to the built-in FPS counter.
svn-id: r9825
the old way would have made it impossible to access the (not yet
implemented) menu icons at the top of the window. I hope this one works...
svn-id: r9793
