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28 lines
806 B
28 lines
806 B
#!/bin/bash
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# Script for converting an png image to 8bit semitransparent files base-2l* and focus-2l* for using as second level menu items
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if [ ! command -v convert >/dev/null 2>&1 ]; then
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>&2 echo "convert executable could not be found"
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exit 128
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fi
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if [ ! command -v pngquant >/dev/null 2>&1 ]; then
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>&2 echo "pngquant executable could not be found"
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exit 128
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fi
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if [ "$1" = "" ]; then
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>&2 echo "zadej filename"
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exit 1
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fi
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filename="$1"
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convert "$filename" -channel A -evaluate Multiply 0.5 +channel -resize 48x48 "prefocus-$filename"
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pngquant 256 < "prefocus-$filename" > "focus-2l-$filename"
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rm "prefocus-$filename"
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convert "$filename" -channel A -evaluate Multiply 0.9 +channel -resize 32x32 "prebody-$filename"
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pngquant 256 < "prebody-$filename" > "body-2l-$filename"
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rm "prebody-$filename"
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