freebsd-nq/lib/libvgl
Bruce Evans 1e4abf1d4c Fix copying of overlapping bitmaps. The cases of copying within the
screen bitmap and within a single MEMBUF were broken when first source
line is before the first destination line and the sub-bitmaps overlap.

The fix just copies horizontal lines in reverse order when the first
source line is before the first destination line.  This switches
directions unnecessarily in some cases, but the switch is about as
fast as doing a precise detection of overlaps.  When the first lines
are the same, there can be undetected overlap in the horizontal
direction.  The old code already handles this mostly accidentally by
using bcopy() for MEMBUFs and by copying through a temporary buffer
for the screen bitmap although the latter is sub-optimal in direct
modes.
2019-04-19 20:29:49 +00:00
..
bitmap.c Fix copying of overlapping bitmaps. The cases of copying within the 2019-04-19 20:29:49 +00:00
keyboard.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
main.c Sigh, r346279 was also a test version with the reduced size doubled (so 2019-04-16 15:52:04 +00:00
Makefile
Makefile.depend DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
mouse.c Fix races in mouse signal handling almost properly using the INTOFF/INTON 2019-03-29 15:20:48 +00:00
simple.c Fix a variable name in r346215. Clearing of the right of the screen was 2019-04-16 14:28:33 +00:00
text.c Fix the type of the color args for VGLMouseFreeze(), VGLBitmapPutChar(), 2019-03-24 20:36:35 +00:00
vgl.3 Oops, my previous commit to libvgl was missing the change of VGLSetBorder() 2019-03-24 20:43:21 +00:00
vgl.h Oops, my previous commit to libvgl was missing the change of VGLSetBorder() 2019-03-24 20:43:21 +00:00