allocate-compressed-texture ( tdt level dim compressed-data -- )
GPU-accelerated rendering » Texture objects

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Vocabulary
gpu.textures

Inputs

tdt	a texture-data-target
level	an integer
dim	an integer or sequence of integers
compressed-data	a compressed-texture-data

Outputs
None

Word description
Allocates a new block of GPU memory for the levelth level of detail of a texture-data-target. The new data is initialized with compressed texture data from the given compressed-texture-data object.

Notes
Using a buffer-ptr as the ptr of a compressed-texture-data object requires OpenGL 2.1 or later or the GL_ARB_pixel_buffer_object extension.

See also
allocate-texture, allocate-texture-image

Definition

IN: gpu.textures

GENERIC#: allocate-compressed-texture 3
    ( tdt level dim compressed-data -- )

Methods

USING: gpu.textures gpu.textures.private opengl.gl ;

M: texture-1d-data-target allocate-compressed-texture
    [ ] [ glCompressedTexImage1D ] (allocate-compressed-texture)
    ;


USING: gpu.textures gpu.textures.private opengl.gl sequences ;

M: texture-2d-data-target allocate-compressed-texture
    [ first2 ] [ glCompressedTexImage2D ]
    (allocate-compressed-texture) ;


USING: gpu.textures gpu.textures.private opengl.gl sequences ;

M: texture-3d-data-target allocate-compressed-texture
    [ first3 ] [ glCompressedTexImage3D ]
    (allocate-compressed-texture) ;