MB86296 Datasheet, PDF (25/352 Pages) Fujitsu Component Limited. – PCI Graphics Controller Specification

FUJITSU LIMITED PRELIMINARY AND CONFIDENTIAL
Texture mapping
MB86296 supports texture mapping to map a image pattern onto the surface of plane. For 2D
pattern texture mapping, MB86296 has a built-in pattern memory for a field of up to 64 × 64 pixels
(at 16-bit color), which performs high-speed texture mapping. The texture pattern can also be laid
out in the graphics memory. In this case, max. 4096 × 4096 pixels can be used.
Drawing of 8-/16-/24-bit direct color is supported for the texture pattern. For drawing 8-bit direct
color, only point sampling can be specified for texture interpolation; only de-curl can be specified
for the blend mode.
Function
Filtering
Coordinates correction
Blend
Alpha blend
Wrap
Texture Mapping
Description
Point sample
Bi-linear filter
Linear
Perspective
De-curl
Modulate
Stencil
Normal
Stencil
Stencil alpha
Repeat
Cramp
Border
1.4.9 Others
Direct color
24-bit direct color is supported in addition to 16-bit direct color as a drawing input data. The 24-bit
direct color data is laid out on the memory by 32-bit-aligned.
Top-left rule non-applicable mode
In addition to the top-left rule applicable mode in which the triangle borders are compatible with
CREMSON, the top-left rule non-applicable mode can be used.
Caution: Use perspective correct mode when use texture at the top-left rule non-applicable mode.
Top-left rule non-applicable primitives cannot use Geometry clip function.
Non-top-left-part’s pixel quality is less than body. (using approximate calculation)
MB86296S <Coral-PA>
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Specification Manual Rev0.1