[commit] r1148 - trunk/openbios-devel/forth/device

[repository service]

Author: mcayland
Date: Sun Jun  9 14:25:22 2013
New Revision: 1148
URL: http://tracker.coreboot.org/trac/openbios/changeset/1148

Log:
display.fs: Fix fb8 routines to work with bit depths > 8.

The IEEE1275 specification suggests that the fb8-* routines can be coerced
into working for framebuffers with greater bit depths. Make sure that we
also support this.

Signed-off-by: Mark Cave-Ayland

Modified:
   trunk/openbios-devel/forth/device/display.fs

Modified: trunk/openbios-devel/forth/device/display.fs
==============================================================================
--- trunk/openbios-devel/forth/device/display.fs	Sun Jun  9 14:25:20 2013	(r1147)
+++ trunk/openbios-devel/forth/device/display.fs	Sun Jun  9 14:25:22 2013	(r1148)
@@ -169,20 +169,20 @@

: fb8-line2addr ( line -- addr )
   window-top +
-  screen-width * 
+  screen-width * depth-bytes *
   frame-buffer-adr + 
-  window-left +
+  window-left depth-bytes * +
 ;

: fb8-copy-line ( from to -- )
   fb8-line2addr swap 
   fb8-line2addr swap 
-  #columns char-width * move
+  #columns char-width * depth-bytes * move
 ;

: fb8-clear-line ( line -- )
   fb8-line2addr 
-  #columns char-width * 
+  #columns char-width * depth-bytes *
   background-color fill
 \ 0 fill
 ;
@@ -190,8 +190,9 @@
 : fb8-draw-character ( char -- )
   \ draw the character:
> font

-  line# char-height * window-top + screen-width *
-  column# char-width * window-left + + frame-buffer-adr +
+  line# char-height * window-top + screen-width * depth-bytes *
+  column# char-width * depth-bytes *
+  window-left depth-bytes * + + frame-buffer-adr +
   swap char-width char-height
   \ normal or inverse?
   foreground-color background-color