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#! /usr/bin/awk -f
# $NetBSD: modelines2c.awk,v 1.4 2006/10/26 23:19:50 bjh21 Exp $
# $OpenBSD: modelines2c.awk,v 1.2 2012/12/05 23:20:22 deraadt Exp $
#
# Copyright (c) 2006 Itronix Inc.
# All rights reserved.
#
# Written by Garrett D'Amore for Itronix Inc.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. The name of Itronix Inc. may not be used to endorse
# or promote products derived from this software without specific
# prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
BEGIN {
nmodes = 0;
}
NR == 1 {
split($0,v,"$");
VERSION=v[2];
printf("/*\t$OpenBSD" "$\t*/\n\n");
printf("/*\n") ;
printf(" * THIS FILE AUTOMATICALLY GENERATED. DO NOT EDIT.\n");
printf(" *\n");
printf(" * generated from:\n");
printf(" *\t%s\n", VERSION);
printf(" */\n\n");
printf("#include <sys/types.h>\n");
printf("#include <dev/videomode/videomode.h>\n\n");
printf("/*\n");
printf(" * These macros help the modelines below fit on one line.\n");
printf(" */\n");
printf("#define HP VID_PHSYNC\n");
printf("#define HN VID_NHSYNC\n");
printf("#define VP VID_PVSYNC\n");
printf("#define VN VID_NVSYNC\n");
printf("#define I VID_INTERLACE\n");
printf("#define DS VID_DBLSCAN\n");
printf("\n");
printf("#define M(nm,hr,vr,clk,hs,he,ht,vs,ve,vt,f) \\\n");
printf("\t{ clk, hr, hs, he, ht, vr, vs, ve, vt, f, nm } \n\n");
printf("const struct videomode videomode_list[] = {\n");
next
}
(/^ModeLine/) {
dotclock = $3;
hdisplay = $4;
hsyncstart = $5;
hsyncend = $6;
htotal = $7;
vdisplay = $8;
vsyncstart = $9;
vsyncend = $10;
vtotal = $11;
macro = "MODE";
iflag = "";
iflags = "";
hflags = "HP";
vflags = "VP";
if ($12 ~ "^-")
hflags = "HN";
if ($13 ~ "^-")
vflags = "VN";
ifactor=1.0;
if ($14 ~ "[Ii][Nn][Tt][Ee][Rr][Ll][Aa][Cc][Ee]") {
iflag = "i";
iflags = "|I";
ifactor = 2.0;
}
# why the additional .1 to vrefresh? well it seems that awk likes to
# make some "rounding errors", and this will compensate
hrefresh= (dotclock * 1000000) / htotal;
vrefresh= int(((hrefresh * ifactor) / vtotal) + .1);
modestr = sprintf("%dx%dx%d%s", hdisplay, vdisplay, vrefresh, iflag);
# printf("/* %dx%d%s refresh %d Hz, hsync %d kHz */\n",
# hdisplay, vdisplay, iflag, vrefresh, hrefresh/1000);
printf("M(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%d,%s),\n",
modestr,
hdisplay, vdisplay, dotclock * 1000,
hsyncstart, hsyncend, htotal,
vsyncstart, vsyncend, vtotal, hflags "|" vflags iflags);
modestr = sprintf("%dx%dx%d%s",
hdisplay/2 , vdisplay/2, vrefresh, iflag);
dmodes[nmodes]=sprintf("M(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%d,%s),",
modestr,
hdisplay/2, vdisplay/2, dotclock * 1000 / 2,
hsyncstart/2, hsyncend/2, htotal/2,
vsyncstart/2, vsyncend/2, vtotal/2,
hflags "|" vflags "|DS" iflags);
nmodes = nmodes + 1
}
END {
printf("\n/* Derived Double Scan Modes */\n\n");
for ( i = 0; i < nmodes; i++ )
{
print dmodes[i];
}
printf("};\n\n");
printf("const int videomode_count = %d;\n", nmodes);
}
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