Safe Haskell	None
Language	Haskell2010

Graphics.Gloss.Raster.Array

Contents

Color
Display functions

Description

Rendering of Repa arrays as raster images.

Gloss programs should be compiled with -threaded, otherwise the GHC runtime will limit the frame-rate to around 20Hz.

The performance of programs using this interface is sensitive to how much boxing and unboxing the GHC simplifier manages to eliminate. For the best result add INLINE pragmas to all of your numeric functions and use the following compile options.

-threaded -Odph -fno-liberate-case -funfolding-use-threshold1000
   -funfolding-keeness-factor1000 -fllvm -optlo-O3

See the examples the raster directory of the gloss-examples package for more details.

Synopsis

module Graphics.Gloss.Data.Color
rgb :: Float -> Float -> Float -> Color
rgbI :: Int -> Int -> Int -> Color
rgb8w :: Word8 -> Word8 -> Word8 -> Color
rgb' :: Float -> Float -> Float -> Color
rgbI' :: Int -> Int -> Int -> Color
data Display
- = InWindow String (Int, Int) (Int, Int)
- | FullScreen
animateArray :: Display -> (Int, Int) -> (Float -> Array D DIM2 Color) -> IO ()
playArray :: Display -> (Int, Int) -> Int -> world -> (world -> Array D DIM2 Color) -> (Event -> world -> world) -> (Float -> world -> world) -> IO ()
animateArrayIO :: Display -> (Int, Int) -> (Float -> IO (Array D DIM2 Color)) -> IO ()
playArrayIO :: Display -> (Int, Int) -> Int -> world -> (world -> IO (Array D DIM2 Color)) -> (Event -> world -> IO world) -> (Float -> world -> IO world) -> IO ()

Color

module Graphics.Gloss.Data.Color

rgb :: Float -> Float -> Float -> Color Source #

Construct a color from red, green, blue components.

Each component is clamped to the range [0..1]

rgbI :: Int -> Int -> Int -> Color Source #

Construct a color from red, green, blue components.

Each component is clamped to the range [0..255]

rgb8w :: Word8 -> Word8 -> Word8 -> Color Source #

Construct a color from red, green, blue components.

rgb' :: Float -> Float -> Float -> Color Source #

Like rgb, but take pre-clamped components for speed.

If you're building a new color for every pixel then use this version, however if your components are out of range then the picture you get will be implementation dependent.

rgbI' :: Int -> Int -> Int -> Color Source #

Like rgbI, but take pre-clamped components for speed.

If you're building a new color for every pixel then use this version, however if your components are out of range then the picture you get will be implementation dependent.

Display functions

data Display #

Describes how Gloss should display its output.

Constructors

InWindow String (Int, Int) (Int, Int)	Display in a window with the given name, size and position.
FullScreen	Display full screen.

Instances

Eq Display
Instance details Defined in Graphics.Gloss.Data.Display Methods (==) :: Display -> Display -> Bool # (/=) :: Display -> Display -> Bool #
Read Display
Instance details Defined in Graphics.Gloss.Data.Display Methods readsPrec :: Int -> ReadS Display # readList :: ReadS [Display] # readPrec :: ReadPrec Display # readListPrec :: ReadPrec [Display] #
Show Display
Instance details Defined in Graphics.Gloss.Data.Display Methods showsPrec :: Int -> Display -> ShowS # show :: Display -> String # showList :: [Display] -> ShowS #

animateArray Source #

Arguments

:: Display	Display mode.
-> (Int, Int)	Number of pixels to draw per element.
-> (Float -> Array D DIM2 Color)	A function to construct a delayed array for the given time. The function should return an array of the same extent each time it is applied. It is passed the time in seconds since the program started.
-> IO ()

Animate a bitmap generated from a Repa array.

playArray Source #

Arguments

:: Display	Display mode.
-> (Int, Int)	Number of pixels to draw per element.
-> Int	Number of simulation steps to take for each second of real time
-> world	The initial world.
-> (world -> Array D DIM2 Color)	Function to convert the world to an array.
-> (Event -> world -> world)	Function to handle input events.
-> (Float -> world -> world)	Function to step the world one iteration. It is passed the time in seconds since the program started.
-> IO ()

Play with a bitmap generated from a Repa array.

animateArrayIO Source #

Arguments

:: Display	Display mode.
-> (Int, Int)	Number of pixels to draw per element.
-> (Float -> IO (Array D DIM2 Color))	A function to construct a delayed array for the given time. The function should return an array of the same extent each time it is applied. It is passed the time in seconds since the program started.
-> IO ()

Animate a bitmap generated from a Repa array, via the IO monad.

playArrayIO Source #

Arguments

:: Display	Display mode.
-> (Int, Int)	Number of pixels to draw per element.
-> Int	Number of simulation steps to take for each second of real time
-> world	The initial world.
-> (world -> IO (Array D DIM2 Color))	Function to convert the world to an array.
-> (Event -> world -> IO world)	Function to handle input events.
-> (Float -> world -> IO world)	Function to step the world one iteration. It is passed the time in seconds since the program started.
-> IO ()

Play with a bitmap generated from a Repa array, via the IO monad.