babl-0.0.0.1: Initial project template from stack

Safe HaskellSafe
LanguageHaskell2010

BABL.FFI.Format

Synopsis

Documentation

data BablFormatPtr #

Constructors

BablFormatPtr 

Fields

type BablFormatDummy = Ptr () #

The dummy Pointer behind BablFormatPtr. Do not peek or poke

data ComponentModel #

List of component models af babl formats.

Constructors

RGB 
RGBA 
RaGaBaA 
R'G'B' 
R'G'B'A 
R'aG'aB'aA 
Y 
YA 
YaA 
Y' 
Y'A 
Y'aA 
Y'CbCr 
Y'CbCrA 
HSVA 
HSV 
CMYK 
CMY 
CIELab 
CIELabAlpha 
CIELCHab 
CIELCHabAlpha 
HSLA 
HSL 
Y'CbCr709 
Y'CbCrA709 
Cairo 

Instances

Show ComponentModel # 

Methods

showsPrec :: Int -> ComponentModel -> ShowS

show :: ComponentModel -> String

showList :: [ComponentModel] -> ShowS

data ComponentFormat #

Byte format of a colour component.

Constructors

CFhalf 
CFfloat 
CFdouble 
CFu8 
CFu15 
CFu16 
CFu32 
A8 
RGB24 
ARGB32 

Instances

Show ComponentFormat # 

Methods

showsPrec :: Int -> ComponentFormat -> ShowS

show :: ComponentFormat -> String

showList :: [ComponentFormat] -> ShowS

data PixelFormat #

Constructors

PixelFormat 

Fields

c_babl_format #

Arguments

:: CString

Format name

-> IO BablFormatDummy 

create a new predefined BABL format

c_babl_get_bpp #

Arguments

:: BablFormatDummy

Format to be drawn from

-> IO CInt 

create and define your own BABL format foreign import ccall unsafe "babl.h babl_format_new"

Get the number of bytes per pixel from a format.

c_babl_format_get_n_components :: BablFormatDummy -> IO CInt #