sed1355 ETC-unknow, sed1355 Datasheet - Page 215

• Manufacturer Part Number: sed1355
• Description: Sed1355 Embedded Ramdac Lcd/crt Controller
• Manufacturer: ETC-unknow

Epson Research and Development
Vancouver Design Center
11.5.4 Color Manipulation
Programming Notes and Examples
Issue Date: 99/04/27
int seReadDisplayDword(int DevID, DWORD Offset, DWORD
*pDword)
Description:
Parameters:
Return Value: ERR_OK
The functions in the Color Manipulation section deal with altering the color values in the Look-Up
Table directly through the accessor functions and indirectly through the color depth setting
functions.
int seSetLut(int DevID, BYTE *pLut, int Count)
Description:
Parameters:
Return Value: ERR_OK
int seGetLut(int DevID, BYTE *pLUT, int Count)
Description:
Parameters:
Return Value: ERR_OK
Reads a dword from the display buffer at the specified offset and returns the value
in pDword.
DevID
Offset
pDword
ERR_HAL_BAD_ARG - if the value for Offset is greater than the amount of
This routine can write one or more LUT entries. The writes always start with Look-
Up Table index 0 and continue for Count entries.
A Look-Up Table entry consists of three bytes, one each for Red, Green, and Blue.
The color information is stored in the four most significant bits of each byte.
DevID
pLut
l
Count
This routine reads one or more LUT entries and puts the result in the byte array
pointed to by pLUT.
A Look-Up Table entry consists of three bytes, one each for Red, Green, and Blue.
The color information is stored in the four most significant bits of each byte.
DevID
pLUT
Count
- registered device ID
- offset from start of the display buffer
- return value of the display buffer location
- operation completed with no problems.
installed memory.
- registered device ID
- pointer to an array of BYTE lut[16][3]
lut[x][0] == RED component
lut[x][1] == GREEN component
ut[x][2] == BLUE component
- the number of LUT entries to write.
- operation completed with no problems
- registered device ID
- pointer to an array of BYTE lut[16][3]
pLUT must point to enough memory to hold Count x 3 bytes of data.
- the number of LUT elements to read.
- operation completed with no problems
X23A-G-003-05
SED1355
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