
6.5
D
ISPLAY
S
CAN
C
ONTROL
...................................................................................................61
6.5.1
Applicable display...................................................................................................61
6.5.2
Interlace display .....................................................................................................62
6.6
T
HE EXTERNAL SYNCHRONOUS SIGNAL
.................................................................................63
6.7
V
IDEO
I
NTERFACE
, NTSC/PAL O
UTPUT
...............................................................................66
7
GEOMETRY ENGINE ...........................................................................................................67
7.1
G
EOMETRY
P
IPELINE
.........................................................................................................67
7.1.1
Processing flow.......................................................................................................67
7.1.2
Model-view-projection (MVP) transformation (OC
CC coordinate transformation) 68
7.1.3
3D-2D transformation (CC
NDC coordinate transformation) ................................68
7.1.4
View port transformation (NDC
DC coordinate transformation) ...........................69
7.1.5
View volume clipping..............................................................................................69
7.1.6
Back face curling ....................................................................................................71
7.2
D
ATA
F
ORMAT
..................................................................................................................72
7.2.1
Data format ............................................................................................................72
7.3
S
ETUP
E
NGINE
.................................................................................................................73
7.3.1
Setup processing.....................................................................................................73
7.4
L
OG
O
UTPUT OF
D
EVICE
C
OORDINATES
...............................................................................73
7.4.1
Log output mode.....................................................................................................73
7.4.2
Log output destination address...............................................................................73
8
DRAWING PROCESSING.....................................................................................................74
8.1
C
OORDINATE
S
YSTEM
.......................................................................................................74
8.1.1
Drawing coordinates...............................................................................................74
8.1.2
Texture coordinates ................................................................................................75
8.1.3
Frame buffer ..........................................................................................................76
8.2
F
IGURE
D
RAWING
.............................................................................................................77
8.2.1
Drawing primitives.................................................................................................77
8.2.2
Polygon drawing function .......................................................................................77
8.2.3
Drawing parameters...............................................................................................78
8.2.4
Anti-aliasing function .............................................................................................79
8.3
B
IT
M
AP
P
ROCESSING
.......................................................................................................80
8.3.1
BLT ........................................................................................................................80
8.3.2
Pattern data format ................................................................................................80
8.4
T
EXTURE
M
APPING
...........................................................................................................81
8.4.1
Texture size............................................................................................................81
8.4.2
Texture color...........................................................................................................81
8.4.3
Texture lapping ......................................................................................................82
8.4.4
Filtering .................................................................................................................83
8.4.5
Perspective correction.............................................................................................83