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

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Vocabulary
gpu.textures

Inputs

tdt	a texture-data-target
level	an integer

Outputs

dim	an integer or sequence of integers

Word description
Returns the dimensions of the memory allocated for the levelth level of detail of the given texture-data-target.

Definition

IN: gpu.textures

GENERIC#: texture-dim 1 ( tdt level -- dim )

Methods

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

M:: texture-1d-data-target texture-dim ( tdt level -- dim )
    tdt bind-tdt :> texture tdt texture-data-gl-target level
    GL_TEXTURE_WIDTH get-texture-int ; inline


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

M:: texture-2d-data-target texture-dim ( tdt level -- dim )
    tdt bind-tdt :> texture tdt texture-data-gl-target level
    [ GL_TEXTURE_WIDTH get-texture-int ]
    [ GL_TEXTURE_HEIGHT get-texture-int ] 2bi 2array ; inline


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

M:: texture-3d-data-target texture-dim ( tdt level -- dim )
    tdt bind-tdt :> texture tdt texture-data-gl-target level
    [ GL_TEXTURE_WIDTH get-texture-int ]
    [ GL_TEXTURE_HEIGHT get-texture-int ]
    [ GL_TEXTURE_DEPTH get-texture-int ] 2tri 3array ; inline