C.7.9.2.2 Linear Segment Type

C.7.9.2.2 Linear Segment Type (Current)
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The linear segment represents a series of palette components whose values may be represented by a straight line.

X = palette address, Y = Value contained in the palette.

(X₀, Y₀) = end of the previous segment

(X₀ + Segment Length, Y₁) = end of this linear segment

Where: Y₁ is contained in the data portion of this segment.

During expansion, the application should "connect" the previous segment's endpoint, (X₀, Y₀), with this segment's endpoint, (X₀ + Segment Length, Y₁) using a straight line, by computing the values for each point between the endpoints.

Note

Because the linear segment uses the end point from the previous segment, a linear segment can not be the first segment.

The linear segment's format shall be as in Table C.7-26.

Table C.7-26. Linear Segment Type

Segment Opcode = 1

Segment Length