[7bb8184] | 1 | #!/usr/bin/perl -w |
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| 2 | |
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| 3 | # gdtconvert |
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| 4 | # |
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| 5 | # Converter for POV-Ray gradient files produced by The Gimp |
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| 6 | # |
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| 7 | # Copyright (C) 2002 Mark R. Shinwell |
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| 8 | # |
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| 9 | # This program is free software; you can redistribute it and/or modify |
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| 10 | # it under the terms of the GNU General Public License as published by |
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| 11 | # the Free Software Foundation; either version 2 of the License, or |
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| 12 | # (at your option) any later version. |
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| 13 | # |
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| 14 | # This program is distributed in the hope that it will be useful, |
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| 15 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | # GNU General Public License for more details. |
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| 18 | # |
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| 19 | # You should have received a copy of the GNU General Public License |
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| 20 | # along with this program; if not, write to the Free Software |
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| 21 | # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 22 | |
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| 23 | use strict; |
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| 24 | |
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| 25 | my $points = 13; |
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| 26 | my $prev = -1.0; |
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| 27 | my $interval = 1.0 / ($points-1); |
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| 28 | my $next = 0.0; |
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| 29 | my $pr = 0; |
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| 30 | my $pg = 0; |
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| 31 | my $pb = 0; |
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| 32 | my $prevpos = 0.0; |
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| 33 | my $outputr = ""; |
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| 34 | my $outputg = ""; |
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| 35 | my $outputb = ""; |
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| 36 | while (my $l = <>) { |
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| 37 | if ($l =~ /.*\[(\d\.\d+) color rgbt <(\d\.\d+), (\d\.\d+), (\d\.\d+).*/) { |
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| 38 | if ($prev != $1) { |
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| 39 | my $r = int($2 * 255); |
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| 40 | my $g = int($3 * 255); |
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| 41 | my $b = int($4 * 255); |
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| 42 | my $pos = $1; |
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| 43 | while ($pos >= $next) { |
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| 44 | if ($prev == -1.0) { |
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| 45 | $outputr = $r; |
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| 46 | $outputg = $g; |
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| 47 | $outputb = $b; |
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| 48 | } |
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| 49 | else { |
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| 50 | my $faralong = $next - $prevpos; |
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| 51 | my $total = $pos - $prevpos; |
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| 52 | my $frac = $faralong / $total; |
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| 53 | |
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| 54 | my $newr = $pr + int(($r - $pr) * $frac); |
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| 55 | my $newg = $pg + int(($g - $pg) * $frac); |
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| 56 | my $newb = $pb + int(($b - $pb) * $frac); |
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| 57 | |
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| 58 | $outputr = "$outputr, $newr"; |
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| 59 | $outputg = "$outputg, $newg"; |
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| 60 | $outputb = "$outputb, $newb"; |
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| 61 | } |
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| 62 | $next += $interval; |
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| 63 | } |
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| 64 | $pr = $r; |
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| 65 | $pg = $g; |
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| 66 | $pb = $b; |
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| 67 | $prevpos = $pos; |
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| 68 | } |
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| 69 | $prev = $1; |
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| 70 | } |
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| 71 | } |
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| 72 | |
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| 73 | print "/* Generated by $0 */\n"; |
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| 74 | print "static const unsigned char REDS[] = {$outputr, 230};\n"; |
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| 75 | print "static const unsigned char GREENS[] = {$outputg, 230};\n"; |
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| 76 | print "static const unsigned char BLUES[] = {$outputb, 230};\n"; |
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