| Stability | Portability : |
|---|---|
| Maintainer | Sven Panne <[email protected]> |
| Safe Haskell | None |
Graphics.Rendering.OpenGL.GL.Shaders.Program
Contents
Description
This module correspons with section 2.20.2 (Program Objects) of the OpenGL 3.1 spec.
- newtype Program = Program {}
- programDeleteStatus :: Program -> GettableStateVar Bool
- attachedShaders :: Program -> StateVar ([VertexShader], [FragmentShader])
- linkProgram :: Program -> IO ()
- linkStatus :: Program -> GettableStateVar Bool
- programInfoLog :: Program -> GettableStateVar String
- validateProgram :: Program -> IO ()
- validateStatus :: Program -> GettableStateVar Bool
- currentProgram :: StateVar (Maybe Program)
- bindFragDataLocation :: Program -> String -> SettableStateVar DrawBufferIndex
- getFragDataLocation :: Program -> String -> IO (Maybe DrawBufferIndex)
- data GetProgramPName
- programVar :: (GLint -> a) -> GetProgramPName -> Program -> GettableStateVar a
- getCurrentProgram :: IO Program
Program Objects
attachedShaders :: Program -> StateVar ([VertexShader], [FragmentShader])Source
linkProgram :: Program -> IO ()Source
validateProgram :: Program -> IO ()Source
bindFragDataLocation :: Program -> String -> SettableStateVar DrawBufferIndexSource
bindFragDataLocation binds a varying variable, specified by program and name, to a
drawbuffer. The effects only take place after succesfull linking of the program.
invalid arguments and conditions are
- an index larger than maxDrawBufferIndex
- names starting with gl_
linking failure will ocure when
- one of the arguments was invalid
- more than one varying varuable name is bound to the same index
It's not an error to specify unused variables, those will be ingored.
getFragDataLocation :: Program -> String -> IO (Maybe DrawBufferIndex)Source
query the binding of a given variable, specified by program and name. The program has to be
linked. The result is Nothing if an error occures or the name is not a name of a varying
variable. If the program hasn't been linked an InvalidOperation error is generated.
internals
data GetProgramPName Source
programVar :: (GLint -> a) -> GetProgramPName -> Program -> GettableStateVar aSource