Internal Modules
85
SPRUHI7A – December 2012 – Revised June 2016
Copyright © 2012–2016, Texas Instruments Incorporated
High-Definition Video Processing Subsystem (HDVPSS)
1.2.5.2.2 Region Configuration Attribute
To display a region, region attribute parameters are set up using the client specific attributes field in the
VPDMA data inbound descriptor. Below table shows the details of these parameters.
Table 1-19. Region Configuration Attribute (Inbound data descriptor word 4-7)
Attribute
Bits
Description
Region_height
15-0
Height of the region (number of input region data
lines) (max: 0x7FF)
Region_width
31-16
Width of the region (max: 0x780)
disp_pos_y
47-32
Position of region (Y origin) (default: 0x00)
disp_pos_x
63-48
Position of region (X origin) (default: 0x00)
Disp_prior
67-64
Region display priority
Reserved
70-68
Reserved
Disp_first_region
71
1: First region of the frame
Disp_last_region
72
1: First region of the frame
scaler_enable
73
Scaler enable
Reserved
74
Reserved
stenciling_en
75
Stenciling enable for the region
Reserved
78-76
Reserved
bound_box_en
79
0: Bounding box disable
1: Bounding box enable
bb_alpha
87-80
Replace bounding box alpha value when bounding
box is enabled. Default value is 0x80.
Disp_blend_cfg
97-88
Blending configuration
95-88: Blending (alpha) value
97-96: Blending Type:
0 = No blending
1 = Region global blending
2 = Color (palette) blending
3 = Pixel (embedded alpha) blending
disp_trans_cfg
127-101
Transparency (color keying enable) configuration
bits
103-102: Transparency LSB bit masking
00 = No masking
01 = Mask[0] during pixel data comparison to
TRANS_COLOR
10 = Mask[1:0]
11 = Mask[2:0]
Example: If TR_LSB_MASK is set to 2'b11, top 5
bits of R/G/B component data are compared to the
corresponding 5 bits of TRANS_COLOR R/G/B
color.
101: Transparency enable
0 = Disable
1 = Enable transparency for video layer
127-104: Transparency color (RGB24)