Graphics.FreeGame.Data.Bitmap

Manipulating bitmaps

Basic types and functions

data Bitmap

Concrete bitmap data

bitmapData :: Bitmap -> Array F DIM3 Word8

Bare the Bitmap's internal representation (y * x * RGBA).

bitmapHash :: Bitmap -> Maybe Int

This value is used to ensure that two bitmaps are equivalent.

bitmapSize :: Bitmap -> (Int, Int)

Get the size of the Bitmap.

Loading from a file

loadBitmapFromFile :: FilePath -> IO Bitmap

Create a Bitmap from the given file.

Constructing bitmaps

toBitmap :: Array F DIM3 Word8 -> Bitmap

toStableBitmap :: Array F DIM3 Word8 -> Bitmap

makeStableBitmap :: Array F DIM3 Word8 -> IO Bitmap

Bitmap operations

onBitmap :: (Array F DIM3 Word8 -> Array F DIM3 Word8) -> Bitmap -> Bitmap

Convert the Bitmap by the given function.

onBitmapWithHashable :: Hashable h => h -> (Array F DIM3 Word8 -> Array F DIM3 Word8) -> Bitmap -> Bitmap

Convert the Bitmap uniformalized by the Hashable value by the given function.

cropBitmap

Arguments

:: Bitmap

original bitmap

-> (Int, Int)

width and height

-> (Int, Int)

x and y

-> Bitmap

result

Extract a Bitmap from the specified range.