pixie/tests/pngsuite.nim

# http://www.schaik.com/pngsuite/

const
  pngSuiteFiles* = [
    # Basic
    "basn0g01", # black & white
    "basn0g02", # 2 bit (4 level) grayscale
    "basn0g04", # 4 bit (16 level) grayscale
    "basn0g08", # 8 bit (256 level) grayscale
    # "basn0g16", # 16 bit (64k level) grayscale
    "basn2c08", # 3x8 bits rgb color
    # "basn2c16", # 3x16 bits rgb color
    "basn3p01", # 1 bit (2 color) paletted
    "basn3p02", # 2 bit (4 color) paletted
    "basn3p04", # 4 bit (16 color) paletted
    "basn3p08", # 8 bit (256 color) paletted
    "basn4a08", # 8 bit grayscale + 8 bit alpha-channel
    # "basn4a16", # 16 bit grayscale + 16 bit alpha-channel
    "basn6a08", # 3x8 bits rgb color + 8 bit alpha-channel
    # "basn6a16", # 3x16 bits rgb color + 16 bit alpha-channel

    # Interlaced
    # "basi0g01", # black & white
    # "basi0g02", # 2 bit (4 level) grayscale
    # "basi0g04", # 4 bit (16 level) grayscale
    # "basi0g08", # 8 bit (256 level) grayscale
    # "basi0g16", # 16 bit (64k level) grayscale
    # "basi2c08", # 3x8 bits rgb color
    # "basi2c16", # 3x16 bits rgb color
    # "basi3p01", # 1 bit (2 color) paletted
    # "basi3p02", # 2 bit (4 color) paletted
    # "basi3p04", # 4 bit (16 color) paletted
    # "basi3p08", # 8 bit (256 color) paletted
    # "basi4a08", # 8 bit grayscale + 8 bit alpha-channel
    # "basi4a16", # 16 bit grayscale + 16 bit alpha-channel
    # "basi6a08", # 3x8 bits rgb color + 8 bit alpha-channel
    # "basi6a16", # 3x16 bits rgb color + 16 bit alpha-channel

    # Odd sizes
    # "s01i3p01", # 1x1 paletted file, interlaced
    "s01n3p01", # 1x1 paletted file, no interlacing
    # "s02i3p01", # 2x2 paletted file, interlaced
    "s02n3p01", # 2x2 paletted file, no interlacing
    # "s03i3p01", # 3x3 paletted file, interlaced
    "s03n3p01", # 3x3 paletted file, no interlacing
    # "s04i3p01", # 4x4 paletted file, interlaced
    "s04n3p01", # 4x4 paletted file, no interlacing
    # "s05i3p02", # 5x5 paletted file, interlaced
    "s05n3p02", # 5x5 paletted file, no interlacing
    # "s06i3p02", # 6x6 paletted file, interlaced
    "s06n3p02", # 6x6 paletted file, no interlacing
    # "s07i3p02", # 7x7 paletted file, interlaced
    "s07n3p02", # 7x7 paletted file, no interlacing
    # "s08i3p02", # 8x8 paletted file, interlaced
    "s08n3p02", # 8x8 paletted file, no interlacing
    # "s09i3p02", # 9x9 paletted file, interlaced
    "s09n3p02", # 9x9 paletted file, no interlacing
    # "s32i3p04", # 32x32 paletted file, interlaced
    "s32n3p04", # 32x32 paletted file, no interlacing
    # "s33i3p04", # 33x33 paletted file, interlaced
    "s33n3p04", # 33x33 paletted file, no interlacing
    # "s34i3p04", # 34x34 paletted file, interlaced
    "s34n3p04", # 34x34 paletted file, no interlacing
    # "s35i3p04", # 35x35 paletted file, interlaced
    "s35n3p04", # 35x35 paletted file, no interlacing
    # "s36i3p04", # 36x36 paletted file, interlaced
    "s36n3p04", # 36x36 paletted file, no interlacing
    # "s37i3p04", # 37x37 paletted file, interlaced
    "s37n3p04", # 37x37 paletted file, no interlacing
    # "s38i3p04", # 38x38 paletted file, interlaced
    "s38n3p04", # 38x38 paletted file, no interlacing
    # "s39i3p04", # 39x39 paletted file, interlaced
    "s39n3p04", # 39x39 paletted file, no interlacing
    # "s40i3p04", # 40x40 paletted file, interlaced
    "s40n3p04", # 40x40 paletted file, no interlacing

    # "bgai4a08", # 8 bit grayscale, alpha, no background chunk, interlaced
    # "bgai4a16", # 16 bit grayscale, alpha, no background chunk, interlaced
    "bgan6a08", # 3x8 bits rgb color, alpha, no background chunk
    # "bgan6a16", # 3x16 bits rgb color, alpha, no background chunk
    "bgbn4a08", # 8 bit grayscale, alpha, black background chunk
    # "bggn4a16", # 16 bit grayscale, alpha, gray background chunk
    "bgwn6a08", # 3x8 bits rgb color, alpha, white background chunk
    # "bgyn6a16", # 3x16 bits rgb color, alpha, yellow background chunk

    # "tbbn0g04", # transparent, black background chunk
    # # "tbbn2c16", # transparent, blue background chunk
    "tbbn3p08", # transparent, black background chunk
    # # "tbgn2c16", # transparent, green background chunk
    "tbgn3p08", # transparent, light-gray background chunk
    "tbrn2c08", # transparent, red background chunk
    # # "tbwn0g16", # transparent, white background chunk
    "tbwn3p08", # transparent, white background chunk
    "tbyn3p08", # transparent, yellow background chunk
    "tp0n0g08", # not transparent for reference (logo on gray)
    "tp0n2c08", # not transparent for reference (logo on gray)
    "tp0n3p08", # not transparent for reference (logo on gray)
    "tp1n3p08", # transparent, but no background chunk
    "tm3n3p02", # multiple levels of transparency, 3 entries

    # "g03n0g16", # grayscale, file-gamma = 0.35
    "g03n2c08", # color, file-gamma = 0.35
    "g03n3p04", # paletted, file-gamma = 0.35
    # "g04n0g16", # grayscale, file-gamma = 0.45
    "g04n2c08", # color, file-gamma = 0.45
    "g04n3p04", # paletted, file-gamma = 0.45
    # "g05n0g16", # grayscale, file-gamma = 0.55
    "g05n2c08", # color, file-gamma = 0.55
    "g05n3p04", # paletted, file-gamma = 0.55
    # "g07n0g16", # grayscale, file-gamma = 0.70
    "g07n2c08", # color, file-gamma = 0.70
    "g07n3p04", # paletted, file-gamma = 0.70
    # "g10n0g16", # grayscale, file-gamma = 1.00
    "g10n2c08", # color, file-gamma = 1.00
    "g10n3p04", # paletted, file-gamma = 1.00
    # "g25n0g16", # grayscale, file-gamma = 2.50
    "g25n2c08", # color, file-gamma = 2.50
    "g25n3p04", # paletted, file-gamma = 2.50

    "f00n0g08", # grayscale, no interlacing, filter-type 0
    "f00n2c08", # color, no interlacing, filter-type 0
    "f01n0g08", # grayscale, no interlacing, filter-type 1
    "f01n2c08", # color, no interlacing, filter-type 1
    "f02n0g08", # grayscale, no interlacing, filter-type 2
    "f02n2c08", # color, no interlacing, filter-type 2
    "f03n0g08", # grayscale, no interlacing, filter-type 3
    "f03n2c08", # color, no interlacing, filter-type 3
    "f04n0g08", # grayscale, no interlacing, filter-type 4
    "f04n2c08", # color, no interlacing, filter-type 4
    "f99n0g04", # bit-depth 4, filter changing per scanline

    # "pp0n2c16", # six-cube palette-chunk in true-color image
    "pp0n6a08", # six-cube palette-chunk in true-color+alpha image
    "ps1n0g08", # six-cube suggested palette (1 byte) in grayscale image
    # "ps1n2c16", # six-cube suggested palette (1 byte) in true-color image
    "ps2n0g08", # six-cube suggested palette (2 bytes) in grayscale image
    # "ps2n2c16", # six-cube suggested palette (2 bytes) in true-color image

    "ccwn2c08", # chroma chunk w:0.3127,0.3290 r:0.64,0.33 g:0.30,0.60 b:0.15,0.06
    "ccwn3p08", # chroma chunk w:0.3127,0.3290 r:0.64,0.33 g:0.30,0.60 b:0.15,0.06
    "cdfn2c08", # physical pixel dimensions, 8x32 flat pixels
    "cdhn2c08", # physical pixel dimensions, 32x8 high pixels
    "cdsn2c08", # physical pixel dimensions, 8x8 square pixels
    "cdun2c08", # physical pixel dimensions, 1000 pixels per 1 meter
    "ch1n3p04", # histogram 15 colors
    "ch2n3p08", # histogram 256 colors
    "cm0n0g04", # modification time, 01-jan-2000 12:34:56
    "cm7n0g04", # modification time, 01-jan-1970 00:00:00
    "cm9n0g04", # modification time, 31-dec-1999 23:59:59
    # "cs3n2c16", # color, 13 significant bits
    "cs3n3p08", # paletted, 3 significant bits
    "cs5n2c08", # color, 5 significant bits
    "cs5n3p08", # paletted, 5 significant bits
    "cs8n2c08", # color, 8 significant bits (reference)
    "cs8n3p08", # paletted, 8 significant bits (reference)
    "ct0n0g04", # no textual data
    "ct1n0g04", # with textual data
    "ctzn0g04", # with compressed textual data
    "cten0g04", # international UTF-8, english
    "ctfn0g04", # international UTF-8, finnish
    "ctgn0g04", # international UTF-8, greek
    "cthn0g04", # international UTF-8, hindi
    "ctjn0g04", # international UTF-8, japanese
    "exif2c08", # chunk with jpeg exif data

    # "oi1n0g16", # grayscale mother image with 1 idat-chunk
    # "oi1n2c16", # color mother image with 1 idat-chunk
    # "oi2n0g16", # grayscale image with 2 idat-chunks
    # "oi2n2c16", # color image with 2 idat-chunks
    # "oi4n0g16", # grayscale image with 4 unequal sized idat-chunks
    # "oi4n2c16", # color image with 4 unequal sized idat-chunks
    # "oi9n0g16", # grayscale image with all idat-chunks length one
    # "oi9n2c16", # color image with all idat-chunks length one

    "z00n2c08", # color, no interlacing, compression level 0 (none)
    "z03n2c08", # color, no interlacing, compression level 3
    "z06n2c08", # color, no interlacing, compression level 6 (default)
    "z09n2c08", # color, no interlacing, compression level 9 (maximum)
  ]

  pngSuiteCorruptedFiles* = [
    "xs1n0g01", # signature byte 1 MSBit reset to zero
    "xs2n0g01", # signature byte 2 is a 'Q'
    "xs4n0g01", # signature byte 4 lowercase
    "xs7n0g01", # 7th byte a space instead of control-Z
    "xcrn0g04", # added cr bytes
    "xlfn0g04", # added lf bytes
    # "xhdn0g08", # incorrect IHDR checksum
    "xc1n0g08", # color type 1
    "xc9n2c08", # color type 9
    "xd0n2c08", # bit-depth 0
    "xd3n2c08", # bit-depth 3
    "xd9n2c08", # bit-depth 99
    "xdtn0g01", # missing IDAT chunk
    # "xcsn0g01" # incorrect IDAT checksum
  ]