rockbox/apps/plugins/lib/gray.c, branch master

Split grayscale library into several files to make up a real function library. Significantly decreases binary size for plugins using it.

2004-06-23T22:15:50+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4802 a1c6a512-1295-4272-9138-f99709370657

Slight speedup for drawing 1-bit bitmaps with draw modes 0..2

2004-06-22T00:02:51+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4784 a1c6a512-1295-4272-9138-f99709370657

Major rework of the grayscale framework:

2004-06-02T23:53:27+00:00

* api change - all drawing functions now use draw mode, foreground and
  background shades set globally by separate functions
* There are now 4 draw modes for all drawing functions, no more separate
  functions for inverse drawing
* Significant speedup of 1-bit bitmap (and font) drawing (2..3 times)
* Some more speed tweaks
* Additional functions for horizontal and vertical lines
* Copied describing comments to the header file for easier reference
* The safety net against an uninitialized grayscale buffer is gone


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4711 a1c6a512-1295-4272-9138-f99709370657

Fix: scrolling left/right with even pixel counts caused an address error if the buffer width was odd. Some more tweaks and cleanups.

2004-05-21T20:48:35+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4681 a1c6a512-1295-4272-9138-f99709370657

FIX: The previous update produced a buffer overflow, which broke e.g. the jpeg viewer

2004-05-20T13:10:41+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4656 a1c6a512-1295-4272-9138-f99709370657

Font support, several speed and size tweaks

2004-05-20T08:21:18+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4654 a1c6a512-1295-4272-9138-f99709370657

Added return parameter for space taken by grayscale buffer to gray_init_buffer()

2004-05-19T17:02:20+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4648 a1c6a512-1295-4272-9138-f99709370657

First real library version of the grayscale framework

2004-05-19T08:18:25+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4641 a1c6a512-1295-4272-9138-f99709370657