Graphics.Rendering.OpenGL.GL.Shaders.Program

This module correspons with section 2.20.2 (Program Objects) of the OpenGL 3.1 spec.

Program Objects

newtype Program

Constructors

Program

Fields

programID :: GLuint

Instances

Eq Program

Ord Program

Show Program

ObjectName 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

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)

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

Constructors

ProgramDeleteStatus

LinkStatus

ValidateStatus

ProgramInfoLogLength

AttachedShaders

ActiveAttributes

ActiveAttributeMaxLength

ActiveUniforms

ActiveUniformMaxLength

TransformFeedbackBufferMode

TransformFeedbackVaryings

TransformFeedbackVaryingMaxLength

programVar :: (GLint -> a) -> GetProgramPName -> Program -> GettableStateVar a

getCurrentProgram :: IO Program