128 lines
3.0 KiB
Haskell
128 lines
3.0 KiB
Haskell
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
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{-# LANGUAGE StrictData #-}
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{-# LANGUAGE TemplateHaskell #-}
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-- | Datatypes used to setup and pass data to shaders.
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module Shader.Data
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-- (
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-- VAO (..),
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-- VBO (..),
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-- EBO (..),
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-- TO (..),
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-- FBO (..),
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-- Shader (..),
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-- PrimitiveMode (..),
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-- -- | Lens functions
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-- vaoName,
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-- shaderUINT,
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-- shaderPrimitive,
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-- shaderVAO,
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-- textureObject,
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-- vboName,
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-- vboPtr,
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-- vboVertexSize,
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-- unFBO,
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-- unTO,
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-- unPrimitiveMode,
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-- eboName,
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-- eboPtr,
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-- -- | Synonyms
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-- vert,
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-- geom,
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-- frag,
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-- pmPoints,
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-- pmLines,
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-- pmLinesAdjacency,
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-- pmLineLoop,
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-- pmLineStrip,
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-- pmTriangles,
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-- pmTriangleStrip,
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-- pmTriangleFan,
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-- pmQuads,
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-- pmPatches,
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--)
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where
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import Control.Lens
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import Foreign
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import Graphics.GL.Core45
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-- | Datatype containing the necessary information for a single shader.
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data Shader = Shader
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{ _shaderUINT :: GLuint -- should be shaderID
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, _shaderPrimitive :: PrimitiveMode
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, _shaderVAO :: VAO
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}
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newtype FBO = FBO {_unFBO :: GLuint}
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newtype TO = TO {_unTO :: GLuint}
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{- | Vertex array object: contains the reference to the object,
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and its buffer targets.
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-}
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newtype VAO = VAO
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{ _vaoName :: GLuint
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}
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data VertexAttribute = VertexAttribute
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{ _vaCount :: GLint
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, _vaType :: GLenum
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, _vaNormalize :: GLboolean
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, _vaOffset :: GLuint
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}
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{- | Vertex buffer object: contains the reference to the object,
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a pointer to a location with space that can be written to the buffer,
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and a list of attribute pointer sizes.
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Vertex attributes are interleaved within the vbo.
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-}
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data VBO = VBO
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{ _vboName :: GLuint
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, _vboPtr :: Ptr Float
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, _vboVertexBytes :: Int
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-- add int for AMOUNT of data poked!
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}
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data EBO = EBO
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{ _eboName :: GLuint
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, _eboPtr :: Ptr GLushort
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}
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-- | Datatype containing the reference to a texture object.
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newtype ShaderTexture = ShaderTexture
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{ _textureObject :: GLuint -- DSA style texture, 450
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-- , _textureTarget :: GLenum
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}
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newtype PrimitiveMode = PrimitiveMode {_unPrimitiveMode :: GLenum}
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-- | Short synonyms for shader types
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vert, geom, frag :: GLenum
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vert = GL_VERTEX_SHADER
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geom = GL_GEOMETRY_SHADER
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frag = GL_FRAGMENT_SHADER
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pmPoints, pmLines, pmLinesAdjacency, pmLineLoop, pmLineStrip, pmTriangles, pmTriangleStrip, pmTriangleFan, pmQuads, pmPatches :: PrimitiveMode
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pmPoints = PrimitiveMode GL_POINTS
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pmLines = PrimitiveMode GL_LINES
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pmLinesAdjacency = PrimitiveMode GL_LINES_ADJACENCY
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pmLineLoop = PrimitiveMode GL_LINE_LOOP
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pmLineStrip = PrimitiveMode GL_LINE_STRIP
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pmTriangles = PrimitiveMode GL_TRIANGLES
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pmTriangleStrip = PrimitiveMode GL_TRIANGLE_STRIP
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pmTriangleFan = PrimitiveMode GL_TRIANGLE_FAN
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pmQuads = PrimitiveMode GL_QUADS
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pmPatches = PrimitiveMode GL_PATCHES
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makeLenses ''VAO
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makeLenses ''VBO
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makeLenses ''EBO
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makeLenses ''ShaderTexture
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makeLenses ''Shader
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makeLenses ''FBO
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makeLenses ''TO
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makeLenses ''PrimitiveMode
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makeLenses ''VertexAttribute
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