Cirrus Logic AN269 - Manual (Page 44)

44 AN269REV1
AN269
int start_position)
/* Description:
* This allows a small range of LUT entries to be replaced.
*
*
* Exception Handling (if any):
* none
*
* Garbage Collection (if any):
* none
*
* Global Data:
* |>I | O | IO<|, |>dataname<|
*
** END_FUNC ******************************************************************/
{
INT32 x;
for(x = 0;x < number_of_entries;x++)
{
Raster->COLOR_LUT[start_position + x].Value = *(data + x);
}
}
// These are function calls that will fill the grayscale and color LUTs
// Fill first LUT
RASTER_PartialFillLUT((INT32 *)four_bpp_lut_gs,sizeof(four_bpp_lut_gs)/4,0);
Raster->LUTCONT.Value = 1;
while(Raster->LUTCONT.Field.SSTAT != 1);
//fill 2nd LUT with same data
RASTER_PartialFillLUT((INT32 *)four_bpp_lut_gs,sizeof(four_bpp_lut_gs)/4,0);
RASTER_FillGreyLUT((INT32 *)rgb_gs_lut_r,0);
RASTER_FillGreyLUT((INT32 *)rgb_gs_lut_g,1);
RASTER_FillGreyLUT((INT32 *)rgb_gs_lut_b,2);