| Safe Haskell | Safe-Inferred |
|---|---|
| Language | Haskell2010 |
Typograffiti.GL
Synopsis
- allocAndActivateTex :: (MonadIO m, MonadFail m) => GLenum -> m GLuint
- clearErrors :: MonadIO m => String -> m ()
- newBoundVAO :: (MonadIO m, MonadFail m) => m GLuint
- withVAO :: MonadIO m => (GLuint -> IO b) -> m b
- newBuffer :: MonadIO m => m GLuint
- withBuffers :: MonadIO m => Int -> ([GLuint] -> m b) -> m b
- bufferGeometry :: (Foldable f, Unbox (f Float), Storable (f Float), Finite f, KnownNat (Size f), MonadIO m) => GLuint -> GLuint -> Vector (f Float) -> m ()
- convertVec :: (Unbox (f Float), Foldable f) => Vector (f Float) -> Vector GLfloat
- withBoundTextures :: MonadIO m => [GLuint] -> m a -> m a
- drawVAO :: MonadIO m => GLuint -> GLuint -> GLenum -> GLsizei -> m ()
- compileOGLShader :: MonadIO m => ByteString -> GLenum -> m (Either String GLuint)
- compileOGLProgram :: MonadIO m => [(String, Integer)] -> [GLuint] -> m (Either String GLuint)
- getUniformLocation :: MonadIO m => GLuint -> String -> m GLint
- class UniformValue a where
- updateUniform :: MonadIO m => GLuint -> GLint -> a -> m ()
- clearUniformUpdateError :: (MonadIO m, Show a) => GLuint -> GLint -> a -> m ()
- mat4Translate :: Num a => V3 a -> M44 a
- mat4Rotate :: (Num a, Epsilon a, Floating a) => a -> V3 a -> M44 a
- mat4Scale :: Num a => V3 a -> M44 a
- mat4SkewXbyY :: Num a => a -> M44 a
- orthoProjection :: Integral a => V2 a -> M44 Float
- boundingBox :: (Unbox a, Real a, Fractional a) => Vector (V2 a) -> (V2 a, V2 a)
Documentation
allocAndActivateTex :: (MonadIO m, MonadFail m) => GLenum -> m GLuint Source #
Allocates a new active texture (image data) in the GPU.
clearErrors :: MonadIO m => String -> m () Source #
Report any exceptions encounted by OpenGL.
newBoundVAO :: (MonadIO m, MonadFail m) => m GLuint Source #
Allocates a new, bound Vertex Array Object.
withVAO :: MonadIO m => (GLuint -> IO b) -> m b Source #
Runs the given callback giving a new temporarily-bound Vertex Array Object, catching any errors.
withBuffers :: MonadIO m => Int -> ([GLuint] -> m b) -> m b Source #
Arguments
| :: (Foldable f, Unbox (f Float), Storable (f Float), Finite f, KnownNat (Size f), MonadIO m) | |
| => GLuint | The attribute location. |
| -> GLuint | The buffer identifier. |
| -> Vector (f Float) | The geometry to buffer. |
| -> m () |
Buffer some geometry into an attribute.
The type variable f should be V0, V1, V2, V3 or V4.
convertVec :: (Unbox (f Float), Foldable f) => Vector (f Float) -> Vector GLfloat Source #
Converts an unboxed vector to a storable vector suitable for storing in a GPU buffer.
withBoundTextures :: MonadIO m => [GLuint] -> m a -> m a Source #
Binds the given textures to GL_TEXTURE0, GL_TEXTURE1, ... in ascending order of the texture unit, runs the IO action and then unbinds the textures.
Arguments
| :: MonadIO m | |
| => GLuint | The program |
| -> GLuint | The vao |
| -> GLenum | The draw mode |
| -> GLsizei | The number of vertices to draw |
| -> m () |
Render the given slice of the given Vertex-Array Object with the given program in the given mode, with exception handling.
Arguments
| :: MonadIO m | |
| => ByteString | The shader source |
| -> GLenum | The shader type (vertex, frag, etc) |
| -> m (Either String GLuint) | Either an error message or the generated shader handle. |
Compiles GLSL code to GPU opcodes, or returns an error message.
compileOGLProgram :: MonadIO m => [(String, Integer)] -> [GLuint] -> m (Either String GLuint) Source #
getUniformLocation :: MonadIO m => GLuint -> String -> m GLint Source #
Lookup ID for a named uniform GLSL variable.
class UniformValue a where Source #
Data that can be uploaded to GLSL uniform variables.
Methods
Arguments
| :: MonadIO m | |
| => GLuint | The program |
| -> GLint | The uniform location |
| -> a | The value. |
| -> m () |
Upload a value to a GLSL uniform variable.
Instances
| UniformValue Bool Source # | |
Defined in Typograffiti.GL Methods updateUniform :: MonadIO m => GLuint -> GLint -> Bool -> m () Source # | |
| UniformValue Double Source # | |
Defined in Typograffiti.GL Methods updateUniform :: MonadIO m => GLuint -> GLint -> Double -> m () Source # | |
| UniformValue Float Source # | |
Defined in Typograffiti.GL Methods updateUniform :: MonadIO m => GLuint -> GLint -> Float -> m () Source # | |
| UniformValue Int Source # | |
Defined in Typograffiti.GL Methods updateUniform :: MonadIO m => GLuint -> GLint -> Int -> m () Source # | |
| UniformValue (M44 Float) Source # | |
Defined in Typograffiti.GL Methods updateUniform :: MonadIO m => GLuint -> GLint -> M44 Float -> m () Source # | |
| UniformValue (V2 Float) Source # | |
Defined in Typograffiti.GL Methods updateUniform :: MonadIO m => GLuint -> GLint -> V2 Float -> m () Source # | |
| UniformValue (V2 Int) Source # | |
Defined in Typograffiti.GL Methods updateUniform :: MonadIO m => GLuint -> GLint -> V2 Int -> m () Source # | |
| UniformValue (V3 Float) Source # | |
Defined in Typograffiti.GL Methods updateUniform :: MonadIO m => GLuint -> GLint -> V3 Float -> m () Source # | |
| UniformValue (V4 Float) Source # | |
Defined in Typograffiti.GL Methods updateUniform :: MonadIO m => GLuint -> GLint -> V4 Float -> m () Source # | |
| UniformValue (Int, Int) Source # | |
Defined in Typograffiti.GL Methods updateUniform :: MonadIO m => GLuint -> GLint -> (Int, Int) -> m () Source # | |
clearUniformUpdateError :: (MonadIO m, Show a) => GLuint -> GLint -> a -> m () Source #
Report exceptions setting GLSL uniform variables.
mat4Translate :: Num a => V3 a -> M44 a Source #
Constructs a matrix that shifts a vector horizontally or vertically.
mat4Rotate :: (Num a, Epsilon a, Floating a) => a -> V3 a -> M44 a Source #
Constructs a matrix that rotates a vector.
mat4SkewXbyY :: Num a => a -> M44 a Source #
Arguments
| :: Integral a | |
| => V2 a | The window width and height |
| -> M44 Float |
Constructs a matrix that converts screen coordinates to range 1,-1; with perspective.
boundingBox :: (Unbox a, Real a, Fractional a) => Vector (V2 a) -> (V2 a, V2 a) Source #
Computes the boundingbox for an array of points.