Classes

The _ColorSizeCheck type acts as an owner of an underlying _CoglColorSizeCheck instance. It provides the methods that can operate on this data type through _ColorSizeCheckProtocol conformance. Use _ColorSizeCheck as a strong reference or owner of a _CoglColorSizeCheck instance.

The _MatrixSizeCheck type acts as an owner of an underlying _CoglMatrixSizeCheck instance. It provides the methods that can operate on this data type through _MatrixSizeCheckProtocol conformance. Use _MatrixSizeCheck as a strong reference or owner of a _CoglMatrixSizeCheck instance.

The _TextureVertexSizeCheck type acts as an owner of an underlying _CoglTextureVertexSizeCheck instance. It provides the methods that can operate on this data type through _TextureVertexSizeCheckProtocol conformance. Use _TextureVertexSizeCheck as a strong reference or owner of a _CoglTextureVertexSizeCheck instance.

The Bitmap type acts as an owner of an underlying CoglBitmap instance. It provides the methods that can operate on this data type through BitmapProtocol conformance. Use Bitmap as a strong reference or owner of a CoglBitmap instance.

A structure for holding a color definition. The contents of the CoglColor structure are private and should never by accessed directly.

The Color type acts as an owner of an underlying CoglColor instance. It provides the methods that can operate on this data type through ColorProtocol conformance. Use Color as a strong reference or owner of a CoglColor instance.

The Euler type acts as an owner of an underlying CoglEuler instance. It provides the methods that can operate on this data type through EulerProtocol conformance. Use Euler as a strong reference or owner of a CoglEuler instance.

The Material type acts as an owner of an underlying CoglMaterial instance. It provides the methods that can operate on this data type through MaterialProtocol conformance. Use Material as a strong reference or owner of a CoglMaterial instance.

The MaterialLayer type acts as an owner of an underlying CoglMaterialLayer instance. It provides the methods that can operate on this data type through MaterialLayerProtocol conformance. Use MaterialLayer as a strong reference or owner of a CoglMaterialLayer instance.

A CoglMatrix holds a 4x4 transform matrix. This is a single precision, column-major matrix which means it is compatible with what OpenGL expects.

A CoglMatrix can represent transforms such as, rotations, scaling, translation, sheering, and linear projections. You can combine these transforms by multiplying multiple matrices in the order you want them applied.

The transformation of a vertex (x, y, z, w) by a CoglMatrix is given by:

  x_new = xx * x + xy * y + xz * z + xw * w
  y_new = yx * x + yy * y + yz * z + yw * w
  z_new = zx * x + zy * y + zz * z + zw * w
  w_new = wx * x + wy * y + wz * z + ww * w

Where w is normally 1

<note>You must consider the members of the CoglMatrix structure read only, and all matrix modifications must be done via the cogl_matrix API. This allows Cogl to annotate the matrices internally. Violation of this will give undefined results. If you need to initialize a matrix with a constant other than the identity matrix you can use cogl_matrix_init_from_array().</note>

The Matrix type acts as an owner of an underlying CoglMatrix instance. It provides the methods that can operate on this data type through MatrixProtocol conformance. Use Matrix as a strong reference or owner of a CoglMatrix instance.

The Offscreen type acts as an owner of an underlying CoglOffscreen instance. It provides the methods that can operate on this data type through OffscreenProtocol conformance. Use Offscreen as a strong reference or owner of a CoglOffscreen instance.

The Quaternion type acts as an owner of an underlying CoglQuaternion instance. It provides the methods that can operate on this data type through QuaternionProtocol conformance. Use Quaternion as a strong reference or owner of a CoglQuaternion instance.

The Texture type acts as an owner of an underlying CoglTexture instance. It provides the methods that can operate on this data type through TextureProtocol conformance. Use Texture as a strong reference or owner of a CoglTexture instance.

Used to specify vertex information when calling cogl_polygon()

The TextureVertex type acts as an owner of an underlying CoglTextureVertex instance. It provides the methods that can operate on this data type through TextureVertexProtocol conformance. Use TextureVertex as a strong reference or owner of a CoglTextureVertex instance.