8.4.2
Log output destination address...............................................................................80
9
DRAWING PROCESSING.....................................................................................................81
9.1
C
OORDINATE
S
YSTEM
....................................................................................................81
9.1.1
Drawing coordinates...............................................................................................81
9.1.2
Texture coordinates ................................................................................................82
9.1.3
Frame buffer ..........................................................................................................83
9.2
F
IGURE
D
RAWING
..........................................................................................................84
9.2.1
Drawing primitives.................................................................................................84
9.2.2
Polygon drawing function .......................................................................................84
9.2.3
Drawing parameters...............................................................................................85
9.2.4
Anti-aliasing function .............................................................................................86
9.3
B
IT
M
AP
P
ROCESSING
...................................................................................................87
9.3.1
BLT ........................................................................................................................87
9.3.2
Pattern data format ................................................................................................87
9.4
T
EXTURE
M
APPING
........................................................................................................88
9.4.1
Texture size............................................................................................................88
9.4.2
Texture color...........................................................................................................88
9.4.3
Texture lapping ......................................................................................................89
9.4.4
Filtering.................................................................................................................90
9.4.5
Perspective correction .............................................................................................90
9.4.6
Texture blending.....................................................................................................91
9.4.7
Bi-linear high-speed mode ......................................................................................91
9.5
R
ENDERING
..................................................................................................................93
9.5.1
Tiling......................................................................................................................93
9.5.2
Alpha blending .......................................................................................................93
9.5.3
Logic operation .......................................................................................................94
9.5.4
Hidden plane management.....................................................................................94
9.6
D
RAWING
A
TTRIBUTES
...................................................................................................95
9.6.1
Line drawing attributes..........................................................................................95
9.6.2
Triangle drawing attributes....................................................................................95
9.6.3
Texture attributes...................................................................................................96
9.6.4
BLT attributes........................................................................................................97
9.6.5
Character pattern drawing attributes.....................................................................97
9.7
B
OLD
L
INE
...................................................................................................................98
9.7.1
Starting and ending points .....................................................................................98
9.7.2
Broken line pattern ................................................................................................99
9.7.3
Edging..................................................................................................................100
9.7.4
Interpolation of bold line joint...............................................................................101
9.8
S
HADOWING
...............................................................................................................102