File.Binary.PNG

Documentation

getChunks :: Binary b => b -> Either String [Chunk]

putChunks :: Binary b => [Chunk] -> Either String b

mkChunks :: IHDR -> Maybe PLTE -> [Chunk] -> ByteString -> [Chunk]

ihdr :: [Chunk] -> IHDR

data IHDR

Constructors

IHDR

Fields

width :: Int

height :: Int

depth :: Int

alpha :: Bool

color :: Bool

palet :: Bool

compressionType :: Int

filterType :: Int

interlaceType :: Int

Instances

Show IHDR

Field IHDR

plte :: [Chunk] -> Maybe PLTE

body :: [Chunk] -> ByteString

others :: [Chunk] -> [Chunk]

data ICCP

Constructors

ICCP

Fields

iccp_name :: NullString

iccp_con :: Int

iccp_body :: ByteString

Instances

Show ICCP

Field ICCP

data TypeChunk

Constructors

T_IHDR

T_PLTE

T_IDAT

T_IEND

T_cHRM

T_gAMA

T_iCCP

T_sBIT

T_sRGB

T_bKGD

T_hIST

T_tRNS

T_pHYs

T_sPLT

T_tIME

T_iTXt

T_tEXt

T_zTXt

T_Others ByteString

Instances

Eq TypeChunk

Show TypeChunk

typeChunk :: Chunk -> TypeChunk

data Chunk

Constructors

ChunkIHDR IHDR

ChunkPLTE PLTE

ChunkIDAT IDAT

ChunkIEND IEND

ChunkcHRM CHRM

ChunkgAMA GAMA

ChunkiCCP ICCP

ChunksBIT SBIT

ChunksRGB SRGB

ChunkbKGD BKGD

ChunkhIST HIST

ChunktRNS TRNS

ChunkpHYs PHYS

ChunksPLT SPLT

ChunktIME TIME

ChunkiTXt ITXT

ChunktEXt TEXT

ChunkzTXt ZTXT

ChunkOthers ByteString ByteString

Instances

Show Chunk

Field Chunk

makePNGHeader :: IHDR -> Maybe PLTE -> Maybe TRNS -> Either String PNGHeader

bsToPNGImage :: PNGImage pi => IHDR -> Maybe PLTE -> Maybe TRNS -> ByteString -> Either String pi

pngImageToBS :: PNGImage pi => pi -> (IHDR, Maybe TRNS, ByteString)

data PNGImageL

Constructors

PNGImageL

Fields

pilInterlace :: Bool

pilBits :: Int

pilBackLines :: [([PNGImageLColor], [PNGImageLColor])]

pilForwardLines :: [([PNGImageLColor], [PNGImageLColor])]

Instances

Show PNGImageL

data PNGImageLColor

Constructors

PNGImageLColor Int Int Int Int

Instances

Show PNGImageLColor

readIccp :: ByteString -> ByteString