Bit
Bit name
Function
001
B
16 bpp RGB(565)
010
B
32 bpp RGB(8888)
011
B
16 bpp aRGB(4444)
100
B
16 bpp aRGB(1555)
17
TEXTURE
FILTERY
Linear filtering on texture V axis
0
no filtering on texture V axis
1
linear filtering on texture V axis
16
TEXTURE
FILTERX
Linear filtering on texture U axis
0
no filtering on texture U axis
1
linear filtering on texture U axis
15
TEXTURE
CLAMPY
Clamp instead of mask V coordinate
0
mask texture V coordinate
1
clamp texture V coordinate
14
TEXTURE
CLAMPX
Clamp instead of mask U coordinate
0
mask texture U coordinate
1
clamp texture U coordinate
13
BC2
Blend color 2 instead of framebuffer pixel
0
use pixel from framebuffer as destination
1
use colour 2 as destination
12
BDI
dst factor will be inverted (meaning 1-a or 1-1 depending on BDF)
0
use blend factor as specified through BDF
1
invert destination blend factor (1-x)
11
BSI
src factor will be inverted (meaning 1-a or 1-1 depending on BSF)
0
use blend factor as specified through BSF
1
invert source blend factor (1-x)
10
BDF
dst factor is alpha (factor is 1 per default)
0
use 1.0 as destination blend factor
1
use alpha as destination blend factor
9
BSF
rc factor is alpha (factor is 1 per default)
0
use 1.0 as source blend factor
1
use alpha as source blend factor
4
READFORMAT
3
Bit 3 of the texture buffer format. See READFORMAT above for description.
2
PATTERN
SOURCEL5
Limiter 5 is used as pattern index instead of the default U limiter
1
TEXTURE
ENABLE
Pixel source is read from texture and used as an alpha to blend between DRWCOLOR1
and DRWCOLOR2.
0
disable texture
1
enable texture
0
PATTERN
ENABLE
Pixel source is a pattern colour (blend of DRWCOLOR1 and DRWCOLOR2 depending
on DRWPATTERN and pattern index)
0
disable pattern
1
enable pattern
Drawing Engine
Chapter 8
Preliminary User's Manual S19203EE1V3UM00
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