Samsung S5PC100, User Manual

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S5PC100 USER’S MANUAL (REV1.0) 3D-ACCELERATOR
9.6-67
8 TEXTURE UNITS
8.1 OVERVIEW
Texture unit (for pixel)
Texture unit includes address generation logic, filtering unit, texture cache, and decompression unit. Vertex
texture unit includes address generation unit and vertex texture cache.
Texture unit supports Non 2
N
-sized Textures (Arbitrary Rectangular Texture).
y
Up to Eight Simultaneous Textures (Max. 8 Texture Samplers)
♦
Each texture context is fully configured by dedicated register sets.
♦
Controllable Min./Max. Mipmap levels for each texture.
y
Max. Width/Height of Textures: 2048x2048
y
Min. Width/Height of Textures: 1x1
y
Max. Mipmap Levels: 12 Levels
y
Texture Size fo Mipmap Level i
♦
Max [1, floor {(Width of level 0 texture) / 2
i
}] x Max[1, floor{(Height of level 0 texture) / 2
i
}]
y
Texture unit supports 2D texture, Cubemap, and 3D texture.
♦
For 3D textures, Level 0 texture only
y
Bilinear, Trilinear Filtering is supported. Also S3TC compression format and paletted texture format are
supported.
♦
For S3TC compression format, Min. Width/Height of Textures is 4 x 4.
♦
Paletted texture format : 1bpp, 2bpp, 4bpp, 8bpp
y
Mipmapping and the following Wrap Modes are supported
♦
Non-parametric coordinate: Clamp to edge
♦
Parametric coordinate: Repeat, Flip (Mirrored repeat), Clamp to edge
Vertex texture unit (for vertex)
Filtering is not supported. Vertex texture unit is only used to fetch 32bit texture data.
Both compress format and paletted texture are not supported.