SDL.Video.Renderer

SDL.Video.Renderer provides a high-level interface to SDL's accelerated 2D rendering library.

Documentation

data Renderer

An SDL rendering device. This can be created with createRenderer.

Instances

Eq Renderer

Methods

(==) :: Renderer -> Renderer -> Bool

(/=) :: Renderer -> Renderer -> Bool

Data Renderer

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Renderer -> c Renderer

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Renderer

toConstr :: Renderer -> Constr

dataTypeOf :: Renderer -> DataType

dataCast1 :: Typeable (* -> *) t => (forall d. Data d => c (t d)) -> Maybe (c Renderer)

dataCast2 :: Typeable (* -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Renderer)

gmapT :: (forall b. Data b => b -> b) -> Renderer -> Renderer

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Renderer -> r

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Renderer -> r

gmapQ :: (forall d. Data d => d -> u) -> Renderer -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> Renderer -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Renderer -> m Renderer

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Renderer -> m Renderer

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Renderer -> m Renderer

Ord Renderer

Methods

compare :: Renderer -> Renderer -> Ordering

(<) :: Renderer -> Renderer -> Bool

(<=) :: Renderer -> Renderer -> Bool

(>) :: Renderer -> Renderer -> Bool

(>=) :: Renderer -> Renderer -> Bool

max :: Renderer -> Renderer -> Renderer

min :: Renderer -> Renderer -> Renderer

Show Renderer

Methods

showsPrec :: Int -> Renderer -> ShowS

show :: Renderer -> String

showList :: [Renderer] -> ShowS

Generic Renderer

Associated Types

type Rep Renderer :: * -> *

Methods

from :: Renderer -> Rep Renderer x

to :: Rep Renderer x -> Renderer

type Rep Renderer

type Rep Renderer = D1 (MetaData "Renderer" "SDL.Internal.Types" "sdl2-2.2.0-5VQZDI9iWv0Hz6tewdjJSZ" True) (C1 (MetaCons "Renderer" PrefixI False) (S1 (MetaSel (Nothing Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Renderer)))

Renderer Configuration

These configuration options can be used with createRenderer to create Renderers.

data RendererConfig

The configuration data used when creating windows.

Constructors

RendererConfig

Fields

• rendererType :: RendererType

  The renderer's acceleration mode

• rendererTargetTexture :: Bool

  The renderer supports rendering to texture

Instances

Eq RendererConfig

Methods

(==) :: RendererConfig -> RendererConfig -> Bool

(/=) :: RendererConfig -> RendererConfig -> Bool

Data RendererConfig

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> RendererConfig -> c RendererConfig

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c RendererConfig

toConstr :: RendererConfig -> Constr

dataTypeOf :: RendererConfig -> DataType

dataCast1 :: Typeable (* -> *) t => (forall d. Data d => c (t d)) -> Maybe (c RendererConfig)

dataCast2 :: Typeable (* -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c RendererConfig)

gmapT :: (forall b. Data b => b -> b) -> RendererConfig -> RendererConfig

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> RendererConfig -> r

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> RendererConfig -> r

gmapQ :: (forall d. Data d => d -> u) -> RendererConfig -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> RendererConfig -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> RendererConfig -> m RendererConfig

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> RendererConfig -> m RendererConfig

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> RendererConfig -> m RendererConfig

Ord RendererConfig

Methods

compare :: RendererConfig -> RendererConfig -> Ordering

(<) :: RendererConfig -> RendererConfig -> Bool

(<=) :: RendererConfig -> RendererConfig -> Bool

(>) :: RendererConfig -> RendererConfig -> Bool

(>=) :: RendererConfig -> RendererConfig -> Bool

max :: RendererConfig -> RendererConfig -> RendererConfig

min :: RendererConfig -> RendererConfig -> RendererConfig

Read RendererConfig

Methods

readsPrec :: Int -> ReadS RendererConfig

readList :: ReadS [RendererConfig]

readPrec :: ReadPrec RendererConfig

readListPrec :: ReadPrec [RendererConfig]

Show RendererConfig

Methods

showsPrec :: Int -> RendererConfig -> ShowS

show :: RendererConfig -> String

showList :: [RendererConfig] -> ShowS

Generic RendererConfig

Associated Types

type Rep RendererConfig :: * -> *

Methods

from :: RendererConfig -> Rep RendererConfig x

to :: Rep RendererConfig x -> RendererConfig

ToNumber RendererConfig Word32

Methods

toNumber :: RendererConfig -> Word32

FromNumber RendererConfig Word32

Methods

fromNumber :: Word32 -> RendererConfig

type Rep RendererConfig

type Rep RendererConfig = D1 (MetaData "RendererConfig" "SDL.Video.Renderer" "sdl2-2.2.0-5VQZDI9iWv0Hz6tewdjJSZ" False) (C1 (MetaCons "RendererConfig" PrefixI True) ((:*:) (S1 (MetaSel (Just Symbol "rendererType") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RendererType)) (S1 (MetaSel (Just Symbol "rendererTargetTexture") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Bool))))

defaultRenderer :: RendererConfig

Default options for RendererConfig.

defaultRenderer = RendererConfig
  { rendererType          = AcceleratedRenderer
  , rendererTargetTexture = False
  }

data RendererType

Renderer acceleration mode

Constructors

UnacceleratedRenderer

The renderer does not use hardware acceleration

AcceleratedRenderer

The renderer uses hardware acceleration and refresh rate is ignored

AcceleratedVSyncRenderer

The renderer uses hardware acceleration and present is synchronized with the refresh rate

SoftwareRenderer

The renderer is a software fallback

Instances

Bounded RendererType

Methods

minBound :: RendererType

maxBound :: RendererType

Enum RendererType

Methods

succ :: RendererType -> RendererType

pred :: RendererType -> RendererType

toEnum :: Int -> RendererType

fromEnum :: RendererType -> Int

enumFrom :: RendererType -> [RendererType]

enumFromThen :: RendererType -> RendererType -> [RendererType]

enumFromTo :: RendererType -> RendererType -> [RendererType]

enumFromThenTo :: RendererType -> RendererType -> RendererType -> [RendererType]

Eq RendererType

Methods

(==) :: RendererType -> RendererType -> Bool

(/=) :: RendererType -> RendererType -> Bool

Data RendererType

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> RendererType -> c RendererType

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c RendererType

toConstr :: RendererType -> Constr

dataTypeOf :: RendererType -> DataType

dataCast1 :: Typeable (* -> *) t => (forall d. Data d => c (t d)) -> Maybe (c RendererType)

dataCast2 :: Typeable (* -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c RendererType)

gmapT :: (forall b. Data b => b -> b) -> RendererType -> RendererType

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> RendererType -> r

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> RendererType -> r

gmapQ :: (forall d. Data d => d -> u) -> RendererType -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> RendererType -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> RendererType -> m RendererType

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> RendererType -> m RendererType

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> RendererType -> m RendererType

Ord RendererType

Methods

compare :: RendererType -> RendererType -> Ordering

(<) :: RendererType -> RendererType -> Bool

(<=) :: RendererType -> RendererType -> Bool

(>) :: RendererType -> RendererType -> Bool

(>=) :: RendererType -> RendererType -> Bool

max :: RendererType -> RendererType -> RendererType

min :: RendererType -> RendererType -> RendererType

Read RendererType

Methods

readsPrec :: Int -> ReadS RendererType

readList :: ReadS [RendererType]

readPrec :: ReadPrec RendererType

readListPrec :: ReadPrec [RendererType]

Show RendererType

Methods

showsPrec :: Int -> RendererType -> ShowS

show :: RendererType -> String

showList :: [RendererType] -> ShowS

Generic RendererType

Associated Types

type Rep RendererType :: * -> *

Methods

from :: RendererType -> Rep RendererType x

to :: Rep RendererType x -> RendererType

type Rep RendererType

type Rep RendererType = D1 (MetaData "RendererType" "SDL.Video.Renderer" "sdl2-2.2.0-5VQZDI9iWv0Hz6tewdjJSZ" False) ((:+:) ((:+:) (C1 (MetaCons "UnacceleratedRenderer" PrefixI False) U1) (C1 (MetaCons "AcceleratedRenderer" PrefixI False) U1)) ((:+:) (C1 (MetaCons "AcceleratedVSyncRenderer" PrefixI False) U1) (C1 (MetaCons "SoftwareRenderer" PrefixI False) U1)))

Drawing Primitives

clear :: (Functor m, MonadIO m) => Renderer -> m ()

Clear the current rendering target with the drawing color.

See SDL_RenderClear for C documentation.

copy

Arguments

:: MonadIO m

=> Renderer

The rendering context

-> Texture

The source texture

-> Maybe (Rectangle CInt)

The source rectangle to copy, or Nothing for the whole texture

-> Maybe (Rectangle CInt)

The destination rectangle to copy to, or Nothing for the whole rendering target. The texture will be stretched to fill the given rectangle.

-> m ()

Copy a portion of the texture to the current rendering target.

See SDL_RenderCopy for C documentation.

copyEx

Arguments

:: MonadIO m

=> Renderer

The rendering context

-> Texture

The source texture

-> Maybe (Rectangle CInt)

The source rectangle to copy, or Nothing for the whole texture

-> Maybe (Rectangle CInt)

The destination rectangle to copy to, or Nothing for the whole rendering target. The texture will be stretched to fill the given rectangle.

-> CDouble

An angle in degrees that indicates the point around which the destination rectangle will be rotated.

-> Maybe (Point V2 CInt)

The point of rotation

-> V2 Bool

Whether to flip in the X or Y axis.

-> m ()

Whether to flip in the X or Y axis.

Copy a portion of the texture to the current rendering target, optionally rotating it by angle around the given center and also flipping it top-bottom and/or left-right.

See SDL_RenderCopyEx for C documentation.

drawLine

Arguments

:: (Functor m, MonadIO m)

=> Renderer

-> Point V2 CInt

The start point of the line

-> Point V2 CInt

The end point of the line

-> m ()

Draw a line on the current rendering target.

See SDL_RenderDrawLine for C documentation.

drawLines

Arguments

:: MonadIO m

=> Renderer

-> Vector (Point V2 CInt)

A Vector of points along the line. SDL will draw lines between these points.

-> m ()

Draw a series of connected lines on the current rendering target.

See SDL_RenderDrawLines for C documentation.

drawPoint :: (Functor m, MonadIO m) => Renderer -> Point V2 CInt -> m ()

Draw a point on the current rendering target.

See SDL_RenderDrawPoint for C documentation.

drawPoints :: MonadIO m => Renderer -> Vector (Point V2 CInt) -> m ()

Draw multiple points on the current rendering target.

See SDL_RenderDrawPoints for C documentation.

drawRect

Arguments

:: MonadIO m

=> Renderer

-> Maybe (Rectangle CInt)

The rectangle outline to draw. Nothing for the entire rendering context.

-> m ()

Draw a rectangle outline on the current rendering target.

See SDL_RenderDrawRect for C documentation.

drawRects :: MonadIO m => Renderer -> Vector (Rectangle CInt) -> m ()

Draw some number of rectangles on the current rendering target.

See SDL_RenderDrawRects for C documentation.

fillRect

Arguments

:: MonadIO m

=> Renderer

-> Maybe (Rectangle CInt)

The rectangle to fill. Nothing for the entire rendering context.

-> m ()

Fill a rectangle on the current rendering target with the drawing color.

See SDL_RenderFillRect for C documentation.

fillRects :: MonadIO m => Renderer -> Vector (Rectangle CInt) -> m ()

Fill some number of rectangles on the current rendering target with the drawing color.

See SDL_RenderFillRects for C documentation.

present :: MonadIO m => Renderer -> m ()

Update the screen with any rendering performed since the previous call.

SDL's rendering functions operate on a backbuffer; that is, calling a rendering function such as drawLine does not directly put a line on the screen, but rather updates the backbuffer. As such, you compose your entire scene and present the composed backbuffer to the screen as a complete picture.

Therefore, when using SDL's rendering API, one does all drawing intended for the frame, and then calls this function once per frame to present the final drawing to the user.

The backbuffer should be considered invalidated after each present; do not assume that previous contents will exist between frames. You are strongly encouraged to call clear to initialize the backbuffer before starting each new frame's drawing, even if you plan to overwrite every pixel.

See SDL_RenderPresent for C documentation.

Renderer State

SDL exposes a stateful interface to Renderers - the above primitives drawing routines will change their output depending on the value of these state variables.

rendererDrawBlendMode :: Renderer -> StateVar BlendMode

Get or set the blend mode used for drawing operations (fill and line).

This StateVar can be modified using $= and the current value retrieved with get.

See SDL_SetRenderDrawBlendMode and SDL_GetRenderDrawBlendMode for C documentation.

rendererDrawColor :: Renderer -> StateVar (V4 Word8)

Get or set the color used for drawing operations (rect, line and clear).

This StateVar can be modified using $= and the current value retrieved with get.

See SDL_SetRenderDrawColor and SDL_GetRenderDrawColor for C documentation.

rendererRenderTarget :: Renderer -> StateVar (Maybe Texture)

Get or set the current render target. Nothing corresponds to the default render target.

This StateVar can be modified using $= and the current value retrieved with get.

See SDL_SetRenderTarget and SDL_GetRenderTarget for C documentation.

rendererClipRect :: Renderer -> StateVar (Maybe (Rectangle CInt))

Get or set the clip rectangle for rendering on the specified target.

This StateVar can be modified using $= and the current value retrieved with get.

See SDL_RenderSetClipRect and SDL_RenderGetClipRect for C documentation.

rendererLogicalSize :: Renderer -> StateVar (Maybe (V2 CInt))

Get or set the device independent resolution for rendering.

This StateVar can be modified using $= and the current value retrieved with get.

See SDL_RenderSetLogicalSize and SDL_RenderGetLogicalSize for C documentation.

rendererScale :: Renderer -> StateVar (V2 CFloat)

Get or set the drawing scale for rendering on the current target.

The drawing coordinates are scaled by the x/y scaling factors before they are used by the renderer. This allows resolution independent drawing with a single coordinate system.

If this results in scaling or subpixel drawing by the rendering backend, it will be handled using the appropriate quality hints. For best results use integer scaling factors.

See SDL_RenderSetScale and SDL_RenderGetScale for C documentation.

rendererViewport :: Renderer -> StateVar (Maybe (Rectangle CInt))

Get or set the drawing area for rendering on the current target.

This StateVar can be modified using $= and the current value retrieved with get.

See SDL_RenderSetViewport and SDL_RenderGetViewport for C documentation.

renderTargetSupported :: MonadIO m => Renderer -> m Bool

Determine whether a window supports the use of render targets.

See SDL_RenderTargetSupported for C documentation.

Surfaces

data Surface

Constructors

Surface (Ptr Surface) (Maybe (IOVector Word8))

updateWindowSurface :: (Functor m, MonadIO m) => Window -> m ()

Copy the window surface to the screen.

This is the function you use to reflect any changes to the surface on the screen.

See SDL_UpdateWindowSurface for C documentation.

surfaceBlit

Arguments

:: MonadIO m

=> Surface

The Surface to be copied from

-> Maybe (Rectangle CInt)

The rectangle to be copied, or Nothing to copy the entire surface

-> Surface

The Surface that is the blit target

-> Maybe (Point V2 CInt)

The position to blit to

-> m (Maybe (Rectangle CInt))

Perform a fast surface copy to a destination surface.

See SDL_BlitSurface for C documentation.

surfaceBlitScaled

Arguments

:: MonadIO m

=> Surface

The Surface to be copied from

-> Maybe (Rectangle CInt)

The rectangle to be copied, or Nothing to copy the entire surface

-> Surface

The Surface that is the blit target

-> Maybe (Rectangle CInt)

The rectangle that is copied into, or Nothing to copy into the entire surface

-> m ()

Perform a scaled surface copy to a destination surface.

See SDL_BlitScaled for C documentation.

surfaceFillRect

Arguments

:: MonadIO m

=> Surface

The Surface that is the drawing target.

-> Maybe (Rectangle CInt)

The rectangle to fill, or Nothing to fill the entire surface.

-> V4 Word8

The color to fill with. If the color value contains an alpha component then the destination is simply filled with that alpha information, no blending takes place. This colour will be implictly mapped to the closest approximation that matches the surface's pixel format.

-> m ()

Perform a fast fill of a rectangle with a specific color.

If there is a clip rectangle set on the destination (set via clipRect), then this function will fill based on the intersection of the clip rectangle and the given Rectangle.

See SDL_FillRect for C documentation.

surfaceFillRects

Arguments

:: MonadIO m

=> Surface

The Surface that is the drawing target.

-> Vector (Rectangle CInt)

A Vector of Rectangles to be filled.

-> V4 Word8

The color to fill with. If the color value contains an alpha component then the destination is simply filled with that alpha information, no blending takes place. This colour will be implictly mapped to the closest approximation that matches the surface's pixel format.

-> m ()

Perform a fast fill of a set of rectangles with a specific color.

If there is a clip rectangle set on any of the destinations (set via clipRect), then this function will fill based on the intersection of the clip rectangle and the given Rectangles.

See SDL_FillRects for C documentation.

Creating and Destroying Surfaces

convertSurface

Arguments

:: (Functor m, MonadIO m)

=> Surface

The Surface to convert

-> SurfacePixelFormat

The pixel format that the new surface is optimized for

-> m Surface

Copy an existing surface into a new one that is optimized for blitting to a surface of a specified pixel format.

This function is used to optimize images for faster repeat blitting. This is accomplished by converting the original and storing the result as a new surface. The new, optimized surface can then be used as the source for future blits, making them faster.

See SDL_ConvertSurface for C documentation.

createRGBSurface

Arguments

:: (Functor m, MonadIO m)

=> V2 CInt

The size of the surface

-> PixelFormat

The bit depth, red, green, blue and alpha mask for the pixels

-> m Surface

Allocate a new RGB surface.

See SDL_CreateRGBSurface for C documentation.

createRGBSurfaceFrom

Arguments

:: (Functor m, MonadIO m)

=> IOVector Word8

The existing pixel data

-> V2 CInt

The size of the surface

-> CInt

The pitch - the length of a row of pixels in bytes

-> PixelFormat

The bit depth, red, green, blue and alpha mask for the pixels

-> m Surface

Allocate a new RGB surface with existing pixel data.

See SDL_CreateRGBSurfaceFrom for C documentation.

freeSurface :: MonadIO m => Surface -> m ()

Free an RGB surface.

If the surface was created using createRGBSurfaceFrom then the pixel data is not freed.

See SDL_FreeSurface for the C documentation.

getWindowSurface :: (Functor m, MonadIO m) => Window -> m Surface

Get the SDL surface associated with the window.

See SDL_GetWindowSurface for C documentation.

loadBMP :: MonadIO m => FilePath -> m Surface

Load a surface from a BMP file.

See SDL_LoadBMP for C documentation.

Surface state

surfaceColorKey :: Surface -> StateVar (Maybe (V4 Word8))

Get or set the color key (transparent pixel color) for a surface.

This StateVar can be modified using $= and the current value retrieved with get.

See SDL_SetColorKey and SDL_GetColorKey for C documentation.

surfaceBlendMode :: Surface -> StateVar BlendMode

Get or set the blend mode used for blit operations.

This StateVar can be modified using $= and the current value retrieved with get.

See SDL_SetSurfaceBlendMode and SDL_GetSurfaceBlendMode for C documentation.

surfaceDimensions :: MonadIO m => Surface -> m (V2 CInt)

Retrive the width and height of a Surface.

surfaceFormat :: MonadIO m => Surface -> m SurfacePixelFormat

Inspect the pixel format under a surface.

surfacePixels :: MonadIO m => Surface -> m (Ptr ())

Obtain the pointer to the underlying pixels in a surface. You should bracket this call with lockSurface and unlockSurface, respectively.

Accessing Surface Data

lockSurface :: MonadIO m => Surface -> m ()

Set up a surface for directly accessing the pixels.

See SDL_LockSurface for C documentation.

unlockSurface :: MonadIO m => Surface -> m ()

Release a surface after directly accessing the pixels.

See SDL_UnlockSurface for C documentation.

Palettes and pixel formats

data Palette

Instances

Eq Palette

Methods

(==) :: Palette -> Palette -> Bool

(/=) :: Palette -> Palette -> Bool

data PixelFormat

Constructors

Unknown

Index1LSB

Index1MSB

Index4LSB

Index4MSB

Index8

RGB332

RGB444

RGB555

BGR555

ARGB4444

RGBA4444

ABGR4444

BGRA4444

ARGB1555

RGBA5551

ABGR1555

BGRA5551

RGB565

BGR565

RGB24

BGR24

RGB888

RGBX8888

BGR888

BGRX8888

ARGB8888

RGBA8888

ABGR8888

BGRA8888

ARGB2101010

YV12

IYUV

YUY2

UYVY

YVYU

Instances

Bounded PixelFormat

Methods

minBound :: PixelFormat

maxBound :: PixelFormat

Enum PixelFormat

Methods

succ :: PixelFormat -> PixelFormat

pred :: PixelFormat -> PixelFormat

toEnum :: Int -> PixelFormat

fromEnum :: PixelFormat -> Int

enumFrom :: PixelFormat -> [PixelFormat]

enumFromThen :: PixelFormat -> PixelFormat -> [PixelFormat]

enumFromTo :: PixelFormat -> PixelFormat -> [PixelFormat]

enumFromThenTo :: PixelFormat -> PixelFormat -> PixelFormat -> [PixelFormat]

Eq PixelFormat

Methods

(==) :: PixelFormat -> PixelFormat -> Bool

(/=) :: PixelFormat -> PixelFormat -> Bool

Data PixelFormat

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> PixelFormat -> c PixelFormat

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c PixelFormat

toConstr :: PixelFormat -> Constr

dataTypeOf :: PixelFormat -> DataType

dataCast1 :: Typeable (* -> *) t => (forall d. Data d => c (t d)) -> Maybe (c PixelFormat)

dataCast2 :: Typeable (* -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c PixelFormat)

gmapT :: (forall b. Data b => b -> b) -> PixelFormat -> PixelFormat

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> PixelFormat -> r

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> PixelFormat -> r

gmapQ :: (forall d. Data d => d -> u) -> PixelFormat -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> PixelFormat -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> PixelFormat -> m PixelFormat

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> PixelFormat -> m PixelFormat

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> PixelFormat -> m PixelFormat

Ord PixelFormat

Methods

compare :: PixelFormat -> PixelFormat -> Ordering

(<) :: PixelFormat -> PixelFormat -> Bool

(<=) :: PixelFormat -> PixelFormat -> Bool

(>) :: PixelFormat -> PixelFormat -> Bool

(>=) :: PixelFormat -> PixelFormat -> Bool

max :: PixelFormat -> PixelFormat -> PixelFormat

min :: PixelFormat -> PixelFormat -> PixelFormat

Read PixelFormat

Methods

readsPrec :: Int -> ReadS PixelFormat

readList :: ReadS [PixelFormat]

readPrec :: ReadPrec PixelFormat

readListPrec :: ReadPrec [PixelFormat]

Show PixelFormat

Methods

showsPrec :: Int -> PixelFormat -> ShowS

show :: PixelFormat -> String

showList :: [PixelFormat] -> ShowS

Generic PixelFormat

Associated Types

type Rep PixelFormat :: * -> *

Methods

from :: PixelFormat -> Rep PixelFormat x

to :: Rep PixelFormat x -> PixelFormat

ToNumber PixelFormat Word32

Methods

toNumber :: PixelFormat -> Word32

FromNumber PixelFormat Word32

Methods

fromNumber :: Word32 -> PixelFormat

type Rep PixelFormat

type Rep PixelFormat = D1 (MetaData "PixelFormat" "SDL.Video.Renderer" "sdl2-2.2.0-5VQZDI9iWv0Hz6tewdjJSZ" False) ((:+:) ((:+:) ((:+:) ((:+:) ((:+:) (C1 (MetaCons "Unknown" PrefixI False) U1) (C1 (MetaCons "Index1LSB" PrefixI False) U1)) ((:+:) (C1 (MetaCons "Index1MSB" PrefixI False) U1) (C1 (MetaCons "Index4LSB" PrefixI False) U1))) ((:+:) ((:+:) (C1 (MetaCons "Index4MSB" PrefixI False) U1) (C1 (MetaCons "Index8" PrefixI False) U1)) ((:+:) (C1 (MetaCons "RGB332" PrefixI False) U1) ((:+:) (C1 (MetaCons "RGB444" PrefixI False) U1) (C1 (MetaCons "RGB555" PrefixI False) U1))))) ((:+:) ((:+:) ((:+:) (C1 (MetaCons "BGR555" PrefixI False) U1) (C1 (MetaCons "ARGB4444" PrefixI False) U1)) ((:+:) (C1 (MetaCons "RGBA4444" PrefixI False) U1) (C1 (MetaCons "ABGR4444" PrefixI False) U1))) ((:+:) ((:+:) (C1 (MetaCons "BGRA4444" PrefixI False) U1) (C1 (MetaCons "ARGB1555" PrefixI False) U1)) ((:+:) (C1 (MetaCons "RGBA5551" PrefixI False) U1) ((:+:) (C1 (MetaCons "ABGR1555" PrefixI False) U1) (C1 (MetaCons "BGRA5551" PrefixI False) U1)))))) ((:+:) ((:+:) ((:+:) ((:+:) (C1 (MetaCons "RGB565" PrefixI False) U1) (C1 (MetaCons "BGR565" PrefixI False) U1)) ((:+:) (C1 (MetaCons "RGB24" PrefixI False) U1) (C1 (MetaCons "BGR24" PrefixI False) U1))) ((:+:) ((:+:) (C1 (MetaCons "RGB888" PrefixI False) U1) (C1 (MetaCons "RGBX8888" PrefixI False) U1)) ((:+:) (C1 (MetaCons "BGR888" PrefixI False) U1) ((:+:) (C1 (MetaCons "BGRX8888" PrefixI False) U1) (C1 (MetaCons "ARGB8888" PrefixI False) U1))))) ((:+:) ((:+:) ((:+:) (C1 (MetaCons "RGBA8888" PrefixI False) U1) (C1 (MetaCons "ABGR8888" PrefixI False) U1)) ((:+:) (C1 (MetaCons "BGRA8888" PrefixI False) U1) (C1 (MetaCons "ARGB2101010" PrefixI False) U1))) ((:+:) ((:+:) (C1 (MetaCons "YV12" PrefixI False) U1) (C1 (MetaCons "IYUV" PrefixI False) U1)) ((:+:) (C1 (MetaCons "YUY2" PrefixI False) U1) ((:+:) (C1 (MetaCons "UYVY" PrefixI False) U1) (C1 (MetaCons "YVYU" PrefixI False) U1)))))))

data SurfacePixelFormat

Instances

Eq SurfacePixelFormat

Methods

(==) :: SurfacePixelFormat -> SurfacePixelFormat -> Bool

(/=) :: SurfacePixelFormat -> SurfacePixelFormat -> Bool

formatPalette :: MonadIO m => SurfacePixelFormat -> m (Maybe Palette)

setPaletteColors

Arguments

:: MonadIO m

=> Palette

The Palette to modify

-> Vector (V4 Word8)

A Vector of colours to copy into the palette

-> CInt

The index of the first palette entry to modify

-> m ()

Set a range of colors in a palette.

See SDL_SetPaletteColors for C documentation.

pixelFormatToMasks :: MonadIO m => PixelFormat -> m (CInt, V4 Word32)

Convert the given the enumerated pixel format to a bpp value and RGBA masks.

See SDL_PixelFormatEnumToMasks for C documentation.

masksToPixelFormat :: MonadIO m => CInt -> V4 Word32 -> m PixelFormat

Convert a bpp value and RGBA masks to an enumerated pixel format.

See SDL_MasksToPixelFormatEnum for C documentation.

Textures

data Texture

Instances

Eq Texture

Methods

(==) :: Texture -> Texture -> Bool

(/=) :: Texture -> Texture -> Bool

Creating, Using and Destroying Textures

createTexture

Arguments

:: (Functor m, MonadIO m)

=> Renderer

The rendering context.

-> PixelFormat

-> TextureAccess

-> V2 CInt

The size of the texture.

-> m Texture

Create a texture for a rendering context.

See SDL_CreateTexture for C documentation.

data TextureAccess

Information to the GPU about how you will use a texture.

Constructors

TextureAccessStatic

Changes rarely, cannot be locked

TextureAccessStreaming

changes frequently, can be locked

TextureAccessTarget

Can be used as a render target

Instances

Bounded TextureAccess

Methods

minBound :: TextureAccess

maxBound :: TextureAccess

Enum TextureAccess

Methods

succ :: TextureAccess -> TextureAccess

pred :: TextureAccess -> TextureAccess

toEnum :: Int -> TextureAccess

fromEnum :: TextureAccess -> Int

enumFrom :: TextureAccess -> [TextureAccess]

enumFromThen :: TextureAccess -> TextureAccess -> [TextureAccess]

enumFromTo :: TextureAccess -> TextureAccess -> [TextureAccess]

enumFromThenTo :: TextureAccess -> TextureAccess -> TextureAccess -> [TextureAccess]

Eq TextureAccess

Methods

(==) :: TextureAccess -> TextureAccess -> Bool

(/=) :: TextureAccess -> TextureAccess -> Bool

Data TextureAccess

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> TextureAccess -> c TextureAccess

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c TextureAccess

toConstr :: TextureAccess -> Constr

dataTypeOf :: TextureAccess -> DataType

dataCast1 :: Typeable (* -> *) t => (forall d. Data d => c (t d)) -> Maybe (c TextureAccess)

dataCast2 :: Typeable (* -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c TextureAccess)

gmapT :: (forall b. Data b => b -> b) -> TextureAccess -> TextureAccess

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> TextureAccess -> r

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> TextureAccess -> r

gmapQ :: (forall d. Data d => d -> u) -> TextureAccess -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> TextureAccess -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> TextureAccess -> m TextureAccess

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> TextureAccess -> m TextureAccess

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> TextureAccess -> m TextureAccess

Ord TextureAccess

Methods

compare :: TextureAccess -> TextureAccess -> Ordering

(<) :: TextureAccess -> TextureAccess -> Bool

(<=) :: TextureAccess -> TextureAccess -> Bool

(>) :: TextureAccess -> TextureAccess -> Bool

(>=) :: TextureAccess -> TextureAccess -> Bool

max :: TextureAccess -> TextureAccess -> TextureAccess

min :: TextureAccess -> TextureAccess -> TextureAccess

Read TextureAccess

Methods

readsPrec :: Int -> ReadS TextureAccess

readList :: ReadS [TextureAccess]

readPrec :: ReadPrec TextureAccess

readListPrec :: ReadPrec [TextureAccess]

Show TextureAccess

Methods

showsPrec :: Int -> TextureAccess -> ShowS

show :: TextureAccess -> String

showList :: [TextureAccess] -> ShowS

Generic TextureAccess

Associated Types

type Rep TextureAccess :: * -> *

Methods

from :: TextureAccess -> Rep TextureAccess x

to :: Rep TextureAccess x -> TextureAccess

ToNumber TextureAccess CInt

Methods

toNumber :: TextureAccess -> CInt

FromNumber TextureAccess CInt

Methods

fromNumber :: CInt -> TextureAccess

type Rep TextureAccess

type Rep TextureAccess = D1 (MetaData "TextureAccess" "SDL.Video.Renderer" "sdl2-2.2.0-5VQZDI9iWv0Hz6tewdjJSZ" False) ((:+:) (C1 (MetaCons "TextureAccessStatic" PrefixI False) U1) ((:+:) (C1 (MetaCons "TextureAccessStreaming" PrefixI False) U1) (C1 (MetaCons "TextureAccessTarget" PrefixI False) U1)))

createTextureFromSurface

Arguments

:: (Functor m, MonadIO m)

=> Renderer

The rendering context

-> Surface

The surface containing pixel data used to fill the texture

-> m Texture

Create a texture from an existing surface.

See SDL_CreateTextureFromSurface for C documentation.

updateTexture

Arguments

:: (Functor m, MonadIO m)

=> Texture

The Texture to be updated

-> Maybe (Rectangle CInt)

The area to update, Nothing for entire texture

-> ByteString

The raw pixel data

-> CInt

The number of bytes in a row of pixel data, including padding between lines

-> m Texture

Updates texture rectangle with new pixel data.

See SDL_UpdateTexture for C documentation.

destroyTexture :: MonadIO m => Texture -> m ()

Destroy the specified texture.

See SDL_DestroyTexture for the C documentation.

glBindTexture

Arguments

:: (Functor m, MonadIO m)

=> Texture

The texture to bind to the current OpenGL/ES/ES2 context

-> m ()

Bind an OpenGL/ES/ES2 texture to the current context for use with when rendering OpenGL primitives directly.

See SDL_GL_BindTexture for C documentation.

glUnbindTexture

Arguments

:: (Functor m, MonadIO m)

=> Texture

The texture to unbind from the current OpenGL/ES/ES2 context

-> m ()

Unbind an OpenGL/ES/ES2 texture from the current context.

See SDL_GL_UnbindTexture for C documentation.

Texture State

textureAlphaMod :: Texture -> StateVar Word8

Get or set the additional alpha value multiplied into render copy operations.

This StateVar can be modified using $= and the current value retrieved with get.

See SDL_SetTextureAlphaMod and SDL_GetTextureAlphaMod for C documentation.

textureBlendMode :: Texture -> StateVar BlendMode

Get or set the blend mode used for texture copy operations.

This StateVar can be modified using $= and the current value retrieved with get.

See SDL_SetTextureBlendMode and SDL_GetTextureBlendMode for C documentation.

data BlendMode

Blend modes used in copy and drawing operations.

Constructors

BlendNone

No blending

BlendAlphaBlend

Alpha blending.

dstRGB = (srcRGB * srcA) + (dstRGB * (1-srcA))
dstA = srcA + (dstA * (1-srcA))

BlendAdditive

Additive blending

dstRGB = (srcRGB * srcA) + dstRGB
dstA = dstA

BlendMod

Color modulate

@ dstRGB = srcRGB * dstRGB dstA = dstA

Instances

Bounded BlendMode

Methods

minBound :: BlendMode

maxBound :: BlendMode

Enum BlendMode

Methods

succ :: BlendMode -> BlendMode

pred :: BlendMode -> BlendMode

toEnum :: Int -> BlendMode

fromEnum :: BlendMode -> Int

enumFrom :: BlendMode -> [BlendMode]

enumFromThen :: BlendMode -> BlendMode -> [BlendMode]

enumFromTo :: BlendMode -> BlendMode -> [BlendMode]

enumFromThenTo :: BlendMode -> BlendMode -> BlendMode -> [BlendMode]

Eq BlendMode

Methods

(==) :: BlendMode -> BlendMode -> Bool

(/=) :: BlendMode -> BlendMode -> Bool

Data BlendMode

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> BlendMode -> c BlendMode

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c BlendMode

toConstr :: BlendMode -> Constr

dataTypeOf :: BlendMode -> DataType

dataCast1 :: Typeable (* -> *) t => (forall d. Data d => c (t d)) -> Maybe (c BlendMode)

dataCast2 :: Typeable (* -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c BlendMode)

gmapT :: (forall b. Data b => b -> b) -> BlendMode -> BlendMode

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> BlendMode -> r

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> BlendMode -> r

gmapQ :: (forall d. Data d => d -> u) -> BlendMode -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> BlendMode -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> BlendMode -> m BlendMode

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> BlendMode -> m BlendMode

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> BlendMode -> m BlendMode

Ord BlendMode

Methods

compare :: BlendMode -> BlendMode -> Ordering

(<) :: BlendMode -> BlendMode -> Bool

(<=) :: BlendMode -> BlendMode -> Bool

(>) :: BlendMode -> BlendMode -> Bool

(>=) :: BlendMode -> BlendMode -> Bool

max :: BlendMode -> BlendMode -> BlendMode

min :: BlendMode -> BlendMode -> BlendMode

Read BlendMode

Methods

readsPrec :: Int -> ReadS BlendMode

readList :: ReadS [BlendMode]

readPrec :: ReadPrec BlendMode

readListPrec :: ReadPrec [BlendMode]

Show BlendMode

Methods

showsPrec :: Int -> BlendMode -> ShowS

show :: BlendMode -> String

showList :: [BlendMode] -> ShowS

Generic BlendMode

Associated Types

type Rep BlendMode :: * -> *

Methods

from :: BlendMode -> Rep BlendMode x

to :: Rep BlendMode x -> BlendMode

ToNumber BlendMode Word32

Methods

toNumber :: BlendMode -> Word32

FromNumber BlendMode Word32

Methods

fromNumber :: Word32 -> BlendMode

type Rep BlendMode

type Rep BlendMode = D1 (MetaData "BlendMode" "SDL.Video.Renderer" "sdl2-2.2.0-5VQZDI9iWv0Hz6tewdjJSZ" False) ((:+:) ((:+:) (C1 (MetaCons "BlendNone" PrefixI False) U1) (C1 (MetaCons "BlendAlphaBlend" PrefixI False) U1)) ((:+:) (C1 (MetaCons "BlendAdditive" PrefixI False) U1) (C1 (MetaCons "BlendMod" PrefixI False) U1)))

textureColorMod :: Texture -> StateVar (V3 Word8)

Get or set the additional color value multiplied into render copy operations.

This StateVar can be modified using $= and the current value retrieved with get.

See SDL_SetTextureColorMod and SDL_GetTextureColorMod for C documentation.

Accessing Texture Data

lockTexture

Arguments

:: MonadIO m

=> Texture

The Texture to lock for access, which must have been created with TextureAccessStreaming

-> Maybe (Rectangle CInt)

The area to lock for access; Nothing to lock the entire texture

-> m (Ptr (), CInt)

A pointer to the locked pixels, appropriately offset by the locked area, and the pitch of the locked pixels (the pitch is the length of one row in bytes).

Lock a portion of the texture for *write-only* pixel access.

See SDL_LockTexture for C documentation.

unlockTexture :: MonadIO m => Texture -> m ()

Unlock a texture, uploading the changes to video memory, if needed.

Warning: See Bug No. 1586 before using this function!

See SDL_UnlockTexture for C documentation.

queryTexture :: MonadIO m => Texture -> m TextureInfo

Query the attributes of a texture.

See SDL_QueryTexture for C documentation.

data TextureInfo

Constructors

TextureInfo

Fields

• texturePixelFormat :: PixelFormat

  Raw format of the texture; the actual format may differ, but pixel transfers will use this format

• textureAccess :: TextureAccess

  The access available to the texture

• textureWidth :: CInt

  The width of the texture

• textureHeight :: CInt

  The height of the texture

Instances

Eq TextureInfo

Methods

(==) :: TextureInfo -> TextureInfo -> Bool

(/=) :: TextureInfo -> TextureInfo -> Bool

Ord TextureInfo

Methods

compare :: TextureInfo -> TextureInfo -> Ordering

(<) :: TextureInfo -> TextureInfo -> Bool

(<=) :: TextureInfo -> TextureInfo -> Bool

(>) :: TextureInfo -> TextureInfo -> Bool

(>=) :: TextureInfo -> TextureInfo -> Bool

max :: TextureInfo -> TextureInfo -> TextureInfo

min :: TextureInfo -> TextureInfo -> TextureInfo

Read TextureInfo

Methods

readsPrec :: Int -> ReadS TextureInfo

readList :: ReadS [TextureInfo]

readPrec :: ReadPrec TextureInfo

readListPrec :: ReadPrec [TextureInfo]

Show TextureInfo

Methods

showsPrec :: Int -> TextureInfo -> ShowS

show :: TextureInfo -> String

showList :: [TextureInfo] -> ShowS

Generic TextureInfo

Associated Types

type Rep TextureInfo :: * -> *

Methods

from :: TextureInfo -> Rep TextureInfo x

to :: Rep TextureInfo x -> TextureInfo

type Rep TextureInfo

type Rep TextureInfo = D1 (MetaData "TextureInfo" "SDL.Video.Renderer" "sdl2-2.2.0-5VQZDI9iWv0Hz6tewdjJSZ" False) (C1 (MetaCons "TextureInfo" PrefixI True) ((:*:) ((:*:) (S1 (MetaSel (Just Symbol "texturePixelFormat") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 PixelFormat)) (S1 (MetaSel (Just Symbol "textureAccess") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 TextureAccess))) ((:*:) (S1 (MetaSel (Just Symbol "textureWidth") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 CInt)) (S1 (MetaSel (Just Symbol "textureHeight") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 CInt)))))

data Rectangle a

Constructors

Rectangle (Point V2 a) (V2 a)

Instances

Functor Rectangle

Methods

fmap :: (a -> b) -> Rectangle a -> Rectangle b

(<$) :: a -> Rectangle b -> Rectangle a

Eq a => Eq (Rectangle a)

Methods

(==) :: Rectangle a -> Rectangle a -> Bool

(/=) :: Rectangle a -> Rectangle a -> Bool

Ord a => Ord (Rectangle a)

Methods

compare :: Rectangle a -> Rectangle a -> Ordering

(<) :: Rectangle a -> Rectangle a -> Bool

(<=) :: Rectangle a -> Rectangle a -> Bool

(>) :: Rectangle a -> Rectangle a -> Bool

(>=) :: Rectangle a -> Rectangle a -> Bool

max :: Rectangle a -> Rectangle a -> Rectangle a

min :: Rectangle a -> Rectangle a -> Rectangle a

Read a => Read (Rectangle a)

Methods

readsPrec :: Int -> ReadS (Rectangle a)

readList :: ReadS [Rectangle a]

readPrec :: ReadPrec (Rectangle a)

readListPrec :: ReadPrec [Rectangle a]

Show a => Show (Rectangle a)

Methods

showsPrec :: Int -> Rectangle a -> ShowS

show :: Rectangle a -> String

showList :: [Rectangle a] -> ShowS

Generic (Rectangle a)

Associated Types

type Rep (Rectangle a) :: * -> *

Methods

from :: Rectangle a -> Rep (Rectangle a) x

to :: Rep (Rectangle a) x -> Rectangle a

Storable a => Storable (Rectangle a)

Methods

sizeOf :: Rectangle a -> Int

alignment :: Rectangle a -> Int

peekElemOff :: Ptr (Rectangle a) -> Int -> IO (Rectangle a)

pokeElemOff :: Ptr (Rectangle a) -> Int -> Rectangle a -> IO ()

peekByteOff :: Ptr b -> Int -> IO (Rectangle a)

pokeByteOff :: Ptr b -> Int -> Rectangle a -> IO ()

peek :: Ptr (Rectangle a) -> IO (Rectangle a)

poke :: Ptr (Rectangle a) -> Rectangle a -> IO ()

type Rep (Rectangle a)

type Rep (Rectangle a) = D1 (MetaData "Rectangle" "SDL.Video.Renderer" "sdl2-2.2.0-5VQZDI9iWv0Hz6tewdjJSZ" False) (C1 (MetaCons "Rectangle" PrefixI False) ((:*:) (S1 (MetaSel (Nothing Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Point V2 a))) (S1 (MetaSel (Nothing Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (V2 a)))))

Available Renderers

These functions allow you to query the current system for available Renderers that can be created with createRenderer.

getRendererInfo :: MonadIO m => Renderer -> m RendererInfo

Get information about a rendering context.

See SDL_GetRendererInfo for C documentation.

data RendererInfo

Information about an instantiated Renderer.

Constructors

RendererInfo

Fields

• rendererInfoName :: Text

  The name of the renderer

• rendererInfoFlags :: RendererConfig

  Supported renderer features

• rendererInfoNumTextureFormats :: Word32

  The number of available texture formats

• rendererInfoTextureFormats :: [PixelFormat]

  The available texture formats

• rendererInfoMaxTextureWidth :: CInt

  The maximum texture width

• rendererInfoMaxTextureHeight :: CInt

  The maximum texture height

Instances

Eq RendererInfo

Methods

(==) :: RendererInfo -> RendererInfo -> Bool

(/=) :: RendererInfo -> RendererInfo -> Bool

Ord RendererInfo

Methods

compare :: RendererInfo -> RendererInfo -> Ordering

(<) :: RendererInfo -> RendererInfo -> Bool

(<=) :: RendererInfo -> RendererInfo -> Bool

(>) :: RendererInfo -> RendererInfo -> Bool

(>=) :: RendererInfo -> RendererInfo -> Bool

max :: RendererInfo -> RendererInfo -> RendererInfo

min :: RendererInfo -> RendererInfo -> RendererInfo

Read RendererInfo

Methods

readsPrec :: Int -> ReadS RendererInfo

readList :: ReadS [RendererInfo]

readPrec :: ReadPrec RendererInfo

readListPrec :: ReadPrec [RendererInfo]

Show RendererInfo

Methods

showsPrec :: Int -> RendererInfo -> ShowS

show :: RendererInfo -> String

showList :: [RendererInfo] -> ShowS

Generic RendererInfo

Associated Types

type Rep RendererInfo :: * -> *

Methods

from :: RendererInfo -> Rep RendererInfo x

to :: Rep RendererInfo x -> RendererInfo

type Rep RendererInfo

type Rep RendererInfo = D1 (MetaData "RendererInfo" "SDL.Video.Renderer" "sdl2-2.2.0-5VQZDI9iWv0Hz6tewdjJSZ" False) (C1 (MetaCons "RendererInfo" PrefixI True) ((:*:) ((:*:) (S1 (MetaSel (Just Symbol "rendererInfoName") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Text)) ((:*:) (S1 (MetaSel (Just Symbol "rendererInfoFlags") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 RendererConfig)) (S1 (MetaSel (Just Symbol "rendererInfoNumTextureFormats") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Word32)))) ((:*:) (S1 (MetaSel (Just Symbol "rendererInfoTextureFormats") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 [PixelFormat])) ((:*:) (S1 (MetaSel (Just Symbol "rendererInfoMaxTextureWidth") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 CInt)) (S1 (MetaSel (Just Symbol "rendererInfoMaxTextureHeight") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 CInt))))))

getRenderDriverInfo :: MonadIO m => m [RendererInfo]

Enumerate all known render drivers on the system, and determine their supported features.

See SDL_GetRenderDriverInfo for C documentation.