Graphics.EGL.Base

Low-level wrapper and some utility around EGL upto 1.5. Graphics.EGL is preffered for normal use.

EGL Types

type EGLint = Int32

32-bit signed integer.

type EGLboolean = Word32

type EGLenum = Word32

type EGLConfig = Ptr ()

type EGLContext = Ptr ()

type EGLDisplay = Ptr ()

type EGLSurface = Ptr ()

type EGLClientBuffer = Ptr ()

Window System Types

type EGLNativeWindow = Ptr ()

type EGLNativePixmap = Ptr ()

type EGLNativeDisplay = Ptr ()

type EGLAttrib = Ptr EGLint

type EGLImage = Ptr ()

type EGLTime = Int64

type EGLSync = Ptr ()

Bindings to EGL

EGL 1.4

eglGetError :: IO EGLint

eglGetDisplay :: EGLNativeDisplay -> IO EGLDisplay

eglInitialize :: EGLDisplay -> EGLAttrib -> EGLAttrib -> IO EGLboolean

eglTerminate :: EGLDisplay -> IO EGLboolean

eglQueryString :: EGLDisplay -> EGLint -> IO CString

eglGetConfigs :: EGLDisplay -> Ptr EGLConfig -> EGLint -> EGLAttrib -> IO EGLboolean

eglChooseConfig :: EGLDisplay -> EGLAttrib -> Ptr EGLConfig -> EGLint -> EGLAttrib -> IO EGLboolean

eglGetConfigAttrib :: EGLDisplay -> EGLConfig -> EGLint -> EGLAttrib -> IO EGLboolean

eglCreateWindowSurface :: EGLDisplay -> EGLConfig -> EGLNativeWindow -> EGLAttrib -> IO EGLSurface

eglCreatePbufferSurface :: EGLDisplay -> EGLConfig -> EGLAttrib -> IO EGLSurface

eglCreatePixmapSurface :: EGLDisplay -> EGLConfig -> EGLNativePixmap -> EGLAttrib -> IO EGLSurface

eglDestroySurface :: EGLDisplay -> EGLSurface -> IO EGLboolean

eglQuerySurface :: EGLDisplay -> EGLSurface -> EGLint -> EGLAttrib -> IO EGLboolean

eglBindAPI :: EGLenum -> IO EGLboolean

eglQueryAPI :: IO EGLenum

eglWaitClient :: IO EGLboolean

eglReleaseThread :: IO EGLboolean

eglCreatePbufferFromClientBuffer :: EGLDisplay -> EGLenum -> EGLClientBuffer -> EGLConfig -> EGLAttrib -> IO EGLSurface

eglSurfaceAttrib :: EGLDisplay -> EGLSurface -> EGLint -> EGLint -> IO EGLboolean

eglBindTexImage :: EGLDisplay -> EGLSurface -> EGLint -> IO EGLboolean

eglReleaseTexImage :: EGLDisplay -> EGLSurface -> EGLint -> IO EGLboolean

eglSwapInterval :: EGLDisplay -> EGLint -> IO EGLboolean

eglCreateContext :: EGLDisplay -> EGLConfig -> EGLContext -> EGLAttrib -> IO EGLContext

eglDestroyContext :: EGLDisplay -> EGLContext -> IO EGLboolean

eglMakeCurrent :: EGLDisplay -> EGLSurface -> EGLSurface -> EGLContext -> IO EGLboolean

eglGetCurrentContext :: IO EGLContext

eglGetCurrentSurface :: EGLint -> IO EGLSurface

eglGetCurrentDisplay :: IO EGLDisplay

eglQueryContext :: EGLDisplay -> EGLContext -> EGLint -> EGLAttrib -> IO EGLboolean

eglWaitNative :: EGLint -> IO EGLboolean

eglSwapBuffers :: EGLDisplay -> EGLSurface -> IO EGLboolean

eglCopyBuffers :: EGLDisplay -> EGLSurface -> EGLNativePixmap -> IO EGLboolean

EGL 1.5

unwrap_eglCreateSync :: FunPtr (EGLDisplay -> EGLenum -> EGLAttrib -> IO EGLSync) -> EGLDisplay -> EGLenum -> EGLAttrib -> IO EGLSync

eglCreateSync :: EGLDisplay -> EGLenum -> EGLAttrib -> IO EGLSync

unwrap_eglDestroytSync :: FunPtr (EGLDisplay -> EGLSync -> IO EGLboolean) -> EGLDisplay -> EGLSync -> IO EGLboolean

eglDestroytSync :: EGLDisplay -> EGLSync -> IO EGLboolean

unwrap_eglGetSyncAttrib :: FunPtr (EGLDisplay -> EGLSync -> EGLint -> EGLAttrib -> IO EGLboolean) -> EGLDisplay -> EGLSync -> EGLint -> EGLAttrib -> IO EGLboolean

eglGetSyncAttrib :: EGLDisplay -> EGLSync -> EGLint -> EGLAttrib -> IO EGLboolean

unwrap_eglClientWaitSync :: FunPtr (EGLDisplay -> EGLSync -> EGLint -> EGLTime -> IO EGLint) -> EGLDisplay -> EGLSync -> EGLint -> EGLTime -> IO EGLint

eglClientWaitSync :: EGLDisplay -> EGLSync -> EGLint -> EGLTime -> IO EGLint

unwrap_eglWaitSync :: FunPtr (EGLDisplay -> EGLSync -> EGLint -> IO EGLboolean) -> EGLDisplay -> EGLSync -> EGLint -> IO EGLboolean

eglWaitSync :: EGLDisplay -> EGLSync -> EGLint -> IO EGLboolean

unwrap_eglCreateImage :: FunPtr (EGLDisplay -> EGLContext -> EGLenum -> EGLClientBuffer -> EGLAttrib -> IO EGLImage) -> EGLDisplay -> EGLContext -> EGLenum -> EGLClientBuffer -> EGLAttrib -> IO EGLImage

eglCreateImage :: EGLDisplay -> EGLContext -> EGLenum -> EGLClientBuffer -> EGLAttrib -> IO EGLImage

unwrap_eglDestroytImage :: FunPtr (EGLDisplay -> EGLImage -> IO EGLboolean) -> EGLDisplay -> EGLImage -> IO EGLboolean

eglDestroytImage :: EGLDisplay -> EGLImage -> IO EGLboolean

unwrap_eglGetPlatformDisplay :: FunPtr (EGLenum -> EGLNativeDisplay -> EGLAttrib -> IO EGLDisplay) -> EGLenum -> EGLNativeDisplay -> EGLAttrib -> IO EGLDisplay

eglGetPlatformDisplay :: EGLenum -> EGLNativeDisplay -> EGLAttrib -> IO EGLDisplay

unwrap_eglCreatePlatformWindowSurface :: FunPtr (EGLDisplay -> EGLConfig -> EGLNativeWindow -> EGLAttrib -> IO EGLSurface) -> EGLDisplay -> EGLConfig -> EGLNativeWindow -> EGLAttrib -> IO EGLSurface

eglCreatePlatformWindowSurface :: EGLDisplay -> EGLConfig -> EGLNativeWindow -> EGLAttrib -> IO EGLSurface

unwrap_eglCreatePlatformPixmapSurface :: FunPtr (EGLDisplay -> EGLConfig -> EGLNativePixmap -> EGLAttrib -> IO EGLSurface) -> EGLDisplay -> EGLConfig -> EGLNativePixmap -> EGLAttrib -> IO EGLSurface

eglCreatePlatformPixmapSurface :: EGLDisplay -> EGLConfig -> EGLNativePixmap -> EGLAttrib -> IO EGLSurface

Extensions

Misc

newtype EGLConfAttr

Constructors

EGLConfAttr EGLint

newtype EGLSurfAttr

Constructors

EGLSurfAttr EGLint

newtype EGLContextAttr

Constructors

EGLContextAttr EGLint

queryString :: EGLint -> Egl -> IO String

queryContext :: EGLint -> Egl -> IO EGLint

type Egl = IORef EglCurrent

EGL state holder per context.

data EglCurrent

Constructors

EglCurrent

Fields

disp :: EGLDisplay

chosen :: EGLConfig

context :: EGLContext

dsurf :: EGLSurface

rsurf :: EGLSurface

nwin :: EGLNativeWindow

screenDims :: (Int32, Int32)

ndisp :: Maybe EGLNativeDisplay

confcand :: [[(EGLConfAttr, Int32)]]

cxtconf :: [(EGLContextAttr, Int32)]

initial :: Maybe EGLNativeDisplay -> [[(EGLConfAttr, Int32)]] -> [(EGLContextAttr, Int32)] -> EglCurrent

showEglError :: EGLint -> String

Trun errno into String.

logError :: String -> IO ()

withErrorCheck :: String -> IO EGLboolean -> IO Bool

withAttrList :: [(EGLint, Int32)] -> (Ptr EGLint -> IO b) -> IO b

Encode attribute list from [(name, value)] pairs.

setupEgl :: Maybe EGLNativeDisplay -> [[(EGLConfAttr, Int32)]] -> IO (EGLDisplay, EGLConfig)

Get an EGLDisplay and choose a suitable config.

setSurface :: EGLDisplay -> EGLConfig -> EGLNativeWindow -> IO (EGLSurface, EGLint, EGLint)

Create a surface and return its pointer, screen_width and screen_height.