6b13f685e
 김민수
BSP 최초 추가
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OSD firmware API description
============================
Note: this API is part of the decoder firmware, so it's cx23415 only.
-------------------------------------------------------------------------------
Name CX2341X_OSD_GET_FRAMEBUFFER
Enum 65/0x41
Description
Return base and length of contiguous OSD memory.
Result[0]
OSD base address
Result[1]
OSD length
-------------------------------------------------------------------------------
Name CX2341X_OSD_GET_PIXEL_FORMAT
Enum 66/0x42
Description
Query OSD format
Result[0]
0=8bit index
1=16bit RGB 5:6:5
2=16bit ARGB 1:5:5:5
3=16bit ARGB 1:4:4:4
4=32bit ARGB 8:8:8:8
-------------------------------------------------------------------------------
Name CX2341X_OSD_SET_PIXEL_FORMAT
Enum 67/0x43
Description
Assign pixel format
Param[0]
0=8bit index
1=16bit RGB 5:6:5
2=16bit ARGB 1:5:5:5
3=16bit ARGB 1:4:4:4
4=32bit ARGB 8:8:8:8
-------------------------------------------------------------------------------
Name CX2341X_OSD_GET_STATE
Enum 68/0x44
Description
Query OSD state
Result[0]
Bit 0 0=off, 1=on
Bits 1:2 alpha control
Bits 3:5 pixel format
-------------------------------------------------------------------------------
Name CX2341X_OSD_SET_STATE
Enum 69/0x45
Description
OSD switch
Param[0]
0=off, 1=on
-------------------------------------------------------------------------------
Name CX2341X_OSD_GET_OSD_COORDS
Enum 70/0x46
Description
Retrieve coordinates of OSD area blended with video
Result[0]
OSD buffer address
Result[1]
Stride in pixels
Result[2]
Lines in OSD buffer
Result[3]
Horizontal offset in buffer
Result[4]
Vertical offset in buffer
-------------------------------------------------------------------------------
Name CX2341X_OSD_SET_OSD_COORDS
Enum 71/0x47
Description
Assign the coordinates of the OSD area to blend with video
Param[0]
buffer address
Param[1]
buffer stride in pixels
Param[2]
lines in buffer
Param[3]
horizontal offset
Param[4]
vertical offset
-------------------------------------------------------------------------------
Name CX2341X_OSD_GET_SCREEN_COORDS
Enum 72/0x48
Description
Retrieve OSD screen area coordinates
Result[0]
top left horizontal offset
Result[1]
top left vertical offset
Result[2]
bottom right horizontal offset
Result[3]
bottom right vertical offset
-------------------------------------------------------------------------------
Name CX2341X_OSD_SET_SCREEN_COORDS
Enum 73/0x49
Description
Assign the coordinates of the screen area to blend with video
Param[0]
top left horizontal offset
Param[1]
top left vertical offset
Param[2]
bottom left horizontal offset
Param[3]
bottom left vertical offset
-------------------------------------------------------------------------------
Name CX2341X_OSD_GET_GLOBAL_ALPHA
Enum 74/0x4A
Description
Retrieve OSD global alpha
Result[0]
global alpha: 0=off, 1=on
Result[1]
bits 0:7 global alpha
-------------------------------------------------------------------------------
Name CX2341X_OSD_SET_GLOBAL_ALPHA
Enum 75/0x4B
Description
Update global alpha
Param[0]
global alpha: 0=off, 1=on
Param[1]
global alpha (8 bits)
Param[2]
local alpha: 0=on, 1=off
-------------------------------------------------------------------------------
Name CX2341X_OSD_SET_BLEND_COORDS
Enum 78/0x4C
Description
Move start of blending area within display buffer
Param[0]
horizontal offset in buffer
Param[1]
vertical offset in buffer
-------------------------------------------------------------------------------
Name CX2341X_OSD_GET_FLICKER_STATE
Enum 79/0x4F
Description
Retrieve flicker reduction module state
Result[0]
flicker state: 0=off, 1=on
-------------------------------------------------------------------------------
Name CX2341X_OSD_SET_FLICKER_STATE
Enum 80/0x50
Description
Set flicker reduction module state
Param[0]
State: 0=off, 1=on
-------------------------------------------------------------------------------
Name CX2341X_OSD_BLT_COPY
Enum 82/0x52
Description
BLT copy
Param[0]
'0000' zero
'0001' ~destination AND ~source
'0010' ~destination AND source
'0011' ~destination
'0100' destination AND ~source
'0101' ~source
'0110' destination XOR source
'0111' ~destination OR ~source
'1000' ~destination AND ~source
'1001' destination XNOR source
'1010' source
'1011' ~destination OR source
'1100' destination
'1101' destination OR ~source
'1110' destination OR source
'1111' one
Param[1]
Resulting alpha blending
'01' source_alpha
'10' destination_alpha
'11' source_alpha*destination_alpha+1
(zero if both source and destination alpha are zero)
Param[2]
'00' output_pixel = source_pixel
'01' if source_alpha=0:
output_pixel = destination_pixel
if 256 > source_alpha > 1:
output_pixel = ((source_alpha + 1)*source_pixel +
(255 - source_alpha)*destination_pixel)/256
'10' if destination_alpha=0:
output_pixel = source_pixel
if 255 > destination_alpha > 0:
output_pixel = ((255 - destination_alpha)*source_pixel +
(destination_alpha + 1)*destination_pixel)/256
'11' if source_alpha=0:
source_temp = 0
if source_alpha=255:
source_temp = source_pixel*256
if 255 > source_alpha > 0:
source_temp = source_pixel*(source_alpha + 1)
if destination_alpha=0:
destination_temp = 0
if destination_alpha=255:
destination_temp = destination_pixel*256
if 255 > destination_alpha > 0:
destination_temp = destination_pixel*(destination_alpha + 1)
output_pixel = (source_temp + destination_temp)/256
Param[3]
width
Param[4]
height
Param[5]
destination pixel mask
Param[6]
destination rectangle start address
Param[7]
destination stride in dwords
Param[8]
source stride in dwords
Param[9]
source rectangle start address
-------------------------------------------------------------------------------
Name CX2341X_OSD_BLT_FILL
Enum 83/0x53
Description
BLT fill color
Param[0]
Same as Param[0] on API 0x52
Param[1]
Same as Param[1] on API 0x52
Param[2]
Same as Param[2] on API 0x52
Param[3]
width
Param[4]
height
Param[5]
destination pixel mask
Param[6]
destination rectangle start address
Param[7]
destination stride in dwords
Param[8]
color fill value
-------------------------------------------------------------------------------
Name CX2341X_OSD_BLT_TEXT
Enum 84/0x54
Description
BLT for 8 bit alpha text source
Param[0]
Same as Param[0] on API 0x52
Param[1]
Same as Param[1] on API 0x52
Param[2]
Same as Param[2] on API 0x52
Param[3]
width
Param[4]
height
Param[5]
destination pixel mask
Param[6]
destination rectangle start address
Param[7]
destination stride in dwords
Param[8]
source stride in dwords
Param[9]
source rectangle start address
Param[10]
color fill value
-------------------------------------------------------------------------------
Name CX2341X_OSD_SET_FRAMEBUFFER_WINDOW
Enum 86/0x56
Description
Positions the main output window on the screen. The coordinates must be
such that the entire window fits on the screen.
Param[0]
window width
Param[1]
window height
Param[2]
top left window corner horizontal offset
Param[3]
top left window corner vertical offset
-------------------------------------------------------------------------------
Name CX2341X_OSD_SET_CHROMA_KEY
Enum 96/0x60
Description
Chroma key switch and color
Param[0]
state: 0=off, 1=on
Param[1]
color
-------------------------------------------------------------------------------
Name CX2341X_OSD_GET_ALPHA_CONTENT_INDEX
Enum 97/0x61
Description
Retrieve alpha content index
Result[0]
alpha content index, Range 0:15
-------------------------------------------------------------------------------
Name CX2341X_OSD_SET_ALPHA_CONTENT_INDEX
Enum 98/0x62
Description
Assign alpha content index
Param[0]
alpha content index, range 0:15
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