Brought HISTORY.md and the framebuffer/DRM README.md up to date.

docs/HISTORY.md

@@ -1,8 +1,8 @@
 Generally speaking,  this history mentions only the more significant
 changes.  See the git log for full details.
 
-Current PDCursesMod - 2024 March 11
-=====================================
+Current PDCursesMod - 2024 April 23
+===================================
 
 Bug fixes
 ---------
@@ -24,13 +24,38 @@ Bug fixes
 - Framebuffer/DRM port didn't redraw upon changing fonts if the new font
   was the same size as the old one.  c714cd9bcc
 
+- wsetscrreg() required the cursor for the window to be positioned
+  between the 'top' and 'bottom' of the new scroll region.  5a0d5becee
+
+- wdeleteln() would delete the line currently under the cursor,  then
+  bring up lines down to the end of the current scroll region,  inserting
+  a blank line there.  It really should delete all the way to the bottom
+  of the window.  See also wmcbrine/PDCurses/issues/165.  b02f94fd3d
+
+- The 'picsview' demo had a possible buffer overrun error.  Reported and
+  fix proposed by Michael Knap.  fcd2dd0cb8
+
+- Plan9 port ran into a compile error due to different timekeeping
+  functions.  Also was missing a few demos and term.h.  1e8472cdbf
+
 Minor new features
 ------------------
 
+- The DRM and Linux framebuffer port now allows for screen rotation.
+  Hit Alt-/ for a 90-degree rotation.  This should pave the way for
+  support on phones and other rotatable displays (and already helps if
+  you have a monitor in portrait mode).  0e41ba5e68  1b7b432f9c
+
 - Added is_cbreak(), is_echo(), is_nl(), is_raw() functions to access
   members of the non-opaque SCREEN struct.  The first two replace
   PDC_getcbreak() and PDC_getecho().  98b6969a7e
 
+- Added a new 'test' program for the issues mentioned above with
+  scrolling and winsertln(), wdeleteln(), winsdelln().  98c7405a3f
+
+- Three new small test programs to investigate various aspects of
+  how curses works (or doesn't work).  5cef1e3d00
+
 PDCursesMod 4.4.0 - 2023 November 30
 ===================================
 

fb/README.md

@@ -1,26 +1,28 @@
-PDCurses for Framebuffer
+PDCursesMod for Framebuffer
 ========================
 
-This directory contains source code to support PDCurses using either the 'traditional',  now-deprecated [Linux framebuffer](https://en.wikipedia.org/wiki/Linux_framebuffer) library,  or the newer [Direct Rendering Manager (DRM)](https://en.wikipedia.org/wiki/Direct_Rendering_Manager) library,  which works on Linux and *BSD.  Much of the [VT port](../vt) is recycled;  for example, the input routines are identical.  You will see that some source files simply `#include` a file from the VT port.
+This directory contains source code to support PDCursesMod using either the 'traditional',  now-deprecated [Linux framebuffer](https://en.wikipedia.org/wiki/Linux_framebuffer) library,  or the newer [Direct Rendering Manager (DRM)](https://en.wikipedia.org/wiki/Direct_Rendering_Manager) library,  which works on Linux and *BSD.  Much of the [VT port](../vt) is recycled;  for example, the input routines are identical.  You will see that some source files simply `#include` a file from the VT port.
 
 Shortcomings (which should be addressable) are :
 
 - It assumes 8 or 32 bits/pixel.  It should be relatively easy to support other bit depths with suitable changes to the `PDC_transform_line()` function in `pdcdisp.c`,  but I don't currently have a system that supports 15-, 16-, or 24-bits per pixel.   (Fortunately,  such displays appear to be getting rare.  I had to dig out an elderly laptop to test the 8-bit display.)
 - The mouse is not supported.  It looks as if the `uinput` system allows one to access the mouse without needing X;  I need to investigate.  `gpm` may be a better choice.
 - Italic and bold fonts are synthesized from the given font,  but it would be relatively easy to let specific fonts be used for that purpose.
 
-The default font,  borrowed from [DOSVGA](../dosvga),  is fixed at 8x14.  Set the environment variable `PDC_FONT` to point to the name of a PSF1, PSF2,  or VGA font to use that font instead.  (See `psf.c` for comments on these font formats.)  Hit Alt-Minus to toggle between the built-in and the PDC_FONT-specified fonts.  Add more fonts with PDC_FONT2,  PDC_FONT3,  etc;  Alt-Minus will then cycle among all specified fonts and the built-in one.
+The default font,  borrowed from [DOSVGA](../dosvga),  is fixed at 8x14.  Set the environment variable `PDC_FONT` to point to the name of a PSF1, PSF2,  or VGA font to use that font instead.  (See `psf.c` for comments on these font formats.)  Hit Alt-Minus to toggle between the built-in and the `PDC_FONT`-specified fonts.  Add more fonts with `PDC_FONT2`,  `PDC_FONT3`,  etc;  Alt-Minus will then cycle among all specified fonts and the built-in one.
+
+Alt-/ (Alt-Slash) will rotate the screen 90 degrees clockwise;  repeat for 180- and 270-degree rotation.  This may be useful on phones and other handheld,  hand-rotatable displays.  It also can help if you have a monitor set up in portrait mode.
+
+With the Linux framebuffer,  all monitors will be used.  With DRM,  the default one will normally be used.  But you can set `PDC_SCREEN=HDMI`, `PDC_SCREEN=VGA`, `PDC_SCREEN=DVI`,  etc. as an environment variable to specify a particular display.
 
 Possible 'to do' items
 ----------------------
 
 In no order :
 
 - Fix the above shortcomings.
-- Display on multiple monitors.  (Doesn't look feasible with the Linux framebuffer version,  I think,  but would be relatively easy on DRM.)
 - Fallback fonts.
 - Fullwidth characters.  For these,  we may need one font that is,  say,  8 pixels wide (for most characters) and one that is 16 pixels wide for the fullwidth characters.  That may be an extension of the above task of having fallback fonts : "Didn't find the desired glyph in the 'normal' font?  Maybe it's in a fallback font."
-- Allow for rotated displays.  (As with the aforementioned font switching,  this results in a screen resizing,  so it'll only work with Curses programs that handle resizes.  On phones,  the resizing may occur when you rotate the phone.)
 - Programmatic resizing through `resize_term()`,  both before and after calling `initscr()`.
 - User-resizing and moving of windows,  if we can get the mouse to work.
 - Reserve a line at the top wherein the application title and close/full-screen/minimize buttons can go.