39 lines
900 B
Nim
39 lines
900 B
Nim
import flatty/binny, os, pixie/common, pixie/fileformats/bmp, random, strformat
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randomize()
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var originals = @["tests/fileformats/bmp/knight.32.bmp"]
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for file in walkFiles("tests/fileformats/bmp/bmpsuite/*"):
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originals.add(file)
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for i in 0 ..< 1000:
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let file = originals[rand(originals.len-1)]
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var data = readFile(file)
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let
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pos = rand(data.len-1)
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value = rand(255).char
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# pos = 27355
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# value = '&'
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data[pos] = value
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let
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width = data.readInt32(18).int
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height = data.readInt32(22).int
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if abs(width) > 1000 or abs(height) > 1000:
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echo "too big"
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continue
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echo &"{i} {file} {pos} {repr(value)}"
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try:
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let img = decodeBmp(data)
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doAssert img.height > 0 and img.width > 0
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except PixieError:
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discard
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data = data[0 ..< pos]
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try:
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let img = decodeBmp(data)
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doAssert img.height > 0 and img.width > 0
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except PixieError:
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discard
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