User's Manual

Intel® 815 Chipset: Graphics Controller PRM, Rev 1.0
R
223
DWord Bit Description
0 31:29 Client : 03h – Rendering Engine
28:24 3DState16 : 1Ch
23:19 Opcode : 2h
18:17 Reserved: 00h (Additional Maps)
16 Update Map Index : The valid range is 0–1.
15:13 Reserved: 00h
12 Anisotropic Filtering Enabled Mask : 0 = Do not update; 1 = Update
11 Reserved: 00h
10 Anisotropic Filtering Enabled:
0 = Disable Anisotropic Filtering
1 = Enable Anisotropic Filtering
9 Mip Mode Filter Mask : 0 = Do not update; 1 = Update
8 Reserved: 00h
7:6 Mip Mode Filter : Valid values are :
00 = None, Disable mip mapping
01 = Nearest, Select the nearest mip map
02 = Dithered, Dither between nearest mip maps
03 = Linear, interpolate between nearest mip maps (combined with linear min/mag
filters this is Trilinear filtering).
5 Mag Mode Filter Mask : 0 = Do not update; 1 = Update
4 Reserved: 00h
3 Mag Mode Filter : Valid values are :
0 = Nearest
1 = Linear
2 Min Mode Filter Mask : 0 = Do not update; 1 = Update
1 Reserved: 00h
0 0 Min Mode Filter : Valid values are :
0 = Nearest
1 = Linear