5e484ad4ab
* Add new jpeg tests. * Resurrect old jpeg. * Fix Jpeg grayscale * Fix 4:1:1 scaling. * Better chunk scanner. * Fight progressive. * Fight restart markers. * Jpeg can now parse all of the test files. * Fuzzing and overflow checks * Make getBits* the only way to read the bits. * Make Quantiziation and IDCT happen only in one place. * Rename jpg folder to jpeg
66 lines
2 KiB
Nim
66 lines
2 KiB
Nim
import pixie/common, pixie/fileformats/jpg, random, strformat
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randomize()
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var files = @[
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"tests/fileformats/jpeg/master/red.jpg",
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"tests/fileformats/jpeg/master/green.jpg",
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"tests/fileformats/jpeg/master/blue.jpg",
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"tests/fileformats/jpeg/master/white.jpg",
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"tests/fileformats/jpeg/master/black.jpg",
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"tests/fileformats/jpeg/master/8x8.jpg",
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"tests/fileformats/jpeg/master/8x8_progressive.jpg",
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"tests/fileformats/jpeg/master/16x16.jpg",
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"tests/fileformats/jpeg/master/16x16_progressive.jpg",
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"tests/fileformats/jpeg/master/quality_01.jpg",
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"tests/fileformats/jpeg/master/quality_10.jpg",
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"tests/fileformats/jpeg/master/quality_25.jpg",
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"tests/fileformats/jpeg/master/quality_50.jpg",
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"tests/fileformats/jpeg/master/quality_100.jpg",
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"tests/fileformats/jpeg/master/cat_4_4_4.jpg",
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"tests/fileformats/jpeg/master/cat_4_4_4.jpg",
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"tests/fileformats/jpeg/master/cat_4_2_2.jpg",
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"tests/fileformats/jpeg/master/cat_4_2_0.jpg",
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"tests/fileformats/jpeg/master/cat_4_1_1.jpg",
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"tests/fileformats/jpeg/master/cat_4_4_4_progressive.jpg",
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"tests/fileformats/jpeg/master/cat_restart_markers_5.jpg",
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"tests/fileformats/jpeg/master/cat_restart_markers_5_progressive.jpg",
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"tests/fileformats/jpeg/master/mandrill.jpg",
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"tests/fileformats/jpeg/master/exif_overrun.jpg",
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"tests/fileformats/jpeg/master/grayscale_test.jpg",
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"tests/fileformats/jpeg/master/progressive.jpg",
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"tests/fileformats/jpeg/master/testimg.jpg",
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"tests/fileformats/jpeg/master/testimgp.jpg",
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"tests/fileformats/jpeg/master/testorig.jpg",
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"tests/fileformats/jpeg/master/testprog.jpg",
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]
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for i in 0 ..< 10_000:
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let original = readFile(sample(files))
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var data = original
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let
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pos = rand(0 ..< data.len)
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value = rand(255).uint8
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data[pos] = value.char
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echo &"{i} {pos} {value}"
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try:
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let img = decodeJpg(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 = decodeJpg(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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