Samsung S5PC110 Manual page 1594

S5PC110_UM
9.2.2.8 MIXER_GRAPHIC0_CFG Register (MIXER_GRAPHIC0_CFG, R/W, Address = 0xF920_0020)
MIXER_GRAPHIC0_CFG
RTQoS_GRP0
Reserved
BLANK_CHANGE0
PRE_MUL_MODE0
Reserved
REG_WIN0_BLEND_EN
REG_PIXEL0_BLEND_EN
Reserved
Bit
[31:23] Real time QoS configuration. The size of graphic layer0
FIFO is 480depth(The each of level is 128bit)
0 = RTQoS Disable
1 ~ 480 = QoS threshold level
481 ~ = Reserved
[22] Reserved
[21] 0 = Blank key (color key) is enable.
1 = Black Key (color key) is disable.
[20] Pre Multiplied_blending mode in graphic layer0.
1 = Pre-Multiplied mode
0 = Normal mode
In this mode, graphic pixel data must be pre-multiplied
with graphic pixel alpha.
In pre-multiplied mode, REG_PIXEL0_BLEND_EN must
be enabled.
Graphic and lower layer blending factor. This factor is
used all over the pixels in the graphic and lower layer to
blend with.
A blending factor(α) is as follows depending on the a
layer blending factor and a pixel blending factor values:
See
Table 9-1.
[19:18] Reserved, read as zero
[17] Blending by a blending factor set by REG_ALPHA_WIN0
register on all over the graphic layer0.
[16] Blending by a blending factor that each pixel have is
enabled in graphic layer0.
[15:12] Reserved, read as zero
Description
9 8BMIXER
Initial State
0
0
0
0
0
0
0
9-14