Bridgetek FT801 - BEGIN

FT800 Series Programmer Guide
Version 2.1
Document Reference No.: BRT_000030 Clearance No.: BRT#037
86
Product Page
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4.5 BEGIN
Begin drawing a graphics primitive
Encoding
31 24
23 4
3
2
1
0
0x1F
Reserved
prim
Parameters
prim
Graphics primitive. The valid value is defined as below:
Table 6 FT800 graphics primitive operation definition
NAME VALUE Description
BITMAPS 1
Bitmap drawing primitive
POINTS 2
Point drawing primitive
LINES 3
Line drawing primitive
LINE_STRIP 4
Line strip drawing
primitive
EDGE_STRIP_R 5
Edge strip right side
drawing primitive
EDGE_STRIP_L 6
Edge strip left side
drawing primitive
EDGE_STRIP_A 7
Edge strip above drawing
primitive
EDGE_STRIP_B 8
Edge strip below side
drawing primitive
RECTS 9
Rectangle drawing
primitive
Description
All primitives supported by the FT800 are defined in the table above. The primitive
to be drawn is selected by the BEGIN command. Once the primitive is selected, it will be
valid till the new primitive is selected by the BEGIN command.
Please note that the primitive drawing operation will not be performed until
VERTEX2II or VERTEX2F is executed.