From 78d14698bd109638777b43a836c0f55e839218e4 Mon Sep 17 00:00:00 2001 From: reinelt Date: Fri, 2 Mar 2001 18:06:18 +0000 Subject: [lcd4linux @ 2001-03-02 18:06:18 by reinelt] README for PNG added git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@96 3ae390bd-cb1e-0410-b409-cd5a39f66f1f --- README.Png | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 README.Png diff --git a/README.Png b/README.Png new file mode 100644 index 0000000..5005918 --- /dev/null +++ b/README.Png @@ -0,0 +1,47 @@ +# +# $Id: README.Png,v 1.1 2001/03/02 18:06:18 reinelt Exp $ +# + +This is the README file for the Png display driver for lcd4linux. + +Preliminarys: libgd, libpng, libz +Optional: perl, apache + +The driver creates the output file specified with the -o switch. The +parameter is used as a format string for sprintf(), if you specify '%d' +in the output file, files with a sequence number will be created. + +The output file is first created with a '.tmp' extension, this temporary +file will be written and closed, and finally (atomically) renamed. This way +you can be shure that you will always get a complete file, but its contents +changes every 'tick' milliseconds. + +Configuration: + +The driver needs/supports the following entries in lcd4linux.conf: + +Display: must be "Png" +size: [columns]x[rows], e.g. "20x4" +font: [xrex]x[yres], at the moment only "5x8" and "6x8" supported. +pixel: [pixelsize]+[pixelgap], e.g. "5+1" +gap: [row gap]x[column gap], e.g. "3x3" +border: border width +foreground: color of an active LCD Pixel, must be #rrggbb +halfground: color of an inactive LCD Pixel, must be #rrggbb +background: backlight color, must be #rrggbb + +For details please look into README.Raster. + +To display this png file continuosly in a web page, follow these instructions: +Copy the sample png.html to an appropriate place under your htdocs. +Copy the sample nph-png perl script into your cgi-bin directory, and adjust +png.html to contain this directory. +Adjust nph-png to contain the path/filename of the outputfile (s -o above). +Start lcd4linux -o path/filename.png. +If you are on a slow connection to your webserver you might also adjust the +$DELAY in nph-png or in lcd4linux.conf. + +Note: depending on your webervers configuration, you must rename nph-png to + nph-png.pl or npg-png.cgi. + +Have fun. -- cgit v1.2.3