Author: wmb Date: 2008-08-09 03:00:16 +0200 (Sat, 09 Aug 2008) New Revision: 875
Modified: dev/geode/display/gxvga.fth Log: Geode VGA support - fixed chopped-up text in graphics-mode12. The problem was caused by a conflict between fixed-timings mode and the upscaler. Fixed-timings must be off when the upscaler is on.
Modified: dev/geode/display/gxvga.fth =================================================================== --- dev/geode/display/gxvga.fth 2008-08-08 21:20:26 UTC (rev 874) +++ dev/geode/display/gxvga.fth 2008-08-09 01:00:16 UTC (rev 875) @@ -1,6 +1,11 @@ purpose: Put the Geode display in VGA mode to use text mode 3 \ See license at end of file
+0 [if] +: tap3, ( coef1 coef2 coef3 -- ) d# 10 lshift or d# 10 lshift or , ; +: tap5, ( coef1 .. coef5 -- ) 2>r tap3, 2r> 0 tap3, ; +[then] + hex create hfilter 1284A7D5 , 000017D5 , \ -43, 297, 296, -43, 5 @@ -542,47 +547,37 @@ \ 1919.1919.1919.1919. 0000.180b msr! \ Write-burstable frame buffer ;
-: all-off +: all-off ( -- ) unlock 4 dc@ 2000.00e0 invert and 4 dc! \ Compr. line buf (2000.0000), Video (8), Color cursor (4), Cursor (2) 8 dc@ 1 invert and 8 dc! \ Timing generator 1 ms \ Let memory accesses finish 4 dc@ 1 invert and 4 dc! \ Turn off FIFO load ; -: 8bpp c200.0019 8 dc! ; \ drop down to 8bpp mode -: vga-start +: 8bpp ( -- ) 8 dc@ h# 300 invert and 8 dc! ; \ drop down to 8bpp mode +: vga-start ( -- ) 8 dc@ 1 or 8 dc! \ Timing generator - 4 dc@ 40080 or 4 dc! \ VGA mode (80), VGA Fixed Timing (40000) + \ Fixed timing must be off to use the upscaler + 4 dc@ h# 40000 invert and h# 80 or 4 dc! \ Fixed Timing (40000) off, VGA (80) on ;
: display-lfb ( -- ) 5601 4 dc! ; \ Enable linear framebuffer
-: setup-filter-mode3 - +: setup-filter-mode3 ( -- ) \ d# 400 1- d# 640 1- wljoin h# 5c dc! d# 400 1- d# 720 1- wljoin h# 5c dc! - - 1c802666 90 dc! -\ 1c802222 90 dc! -\ 30003000 90 dc! + h# 1c802666 h# 90 dc! filter-taps -\ 1aaa3000 90 dc! ; -: setup-filter-mode12 - -\ d# 400 1- d# 640 1- wljoin h# 5c dc! +: setup-filter-mode12 ( -- ) d# 480 1- d# 640 1- wljoin h# 5c dc! - - 22222222 90 dc! -\ 1c802222 90 dc! -\ 30003000 90 dc! + h# 22222222 h# 90 dc! filter-taps -\ 1aaa3000 90 dc! ; -: filteron 1000 94 dc! ; -: filteroff - 40004000 90 dc! - 000 94 dc! +: filteron ( -- ) h# 1000 h# 94 dc! ; +: filteroff ( -- ) + h# 40004000 h# 90 dc! + 0 h# 94 dc! ;
\ XXX get these from video/common/defer.fth @@ -647,7 +642,6 @@ \ otherwise the filter and the VGA don't synchronize to the \ frame and the sequencer shuts off after one frame. \ That can be fixed with all-off vga-start -\ filteroff setup-filter-mode12 filteron
all-off 8bpp vga-start