This Appendix covers commonly-used XIL functions which have been accelerated on the SX for byte and short images. There are certain restrictions which have been placed on the functions in order for acceleration to occur. If the function is not accelerated on SX, it is performed using the memory driver of XIL.
Two functions, xil_lookup(3) and xil_rotate(3), require contiguous memory (up to 128k bytes) for lookup, and the size of the source image for xil_rotate().
The following functional features are supported for the XIL port to SX. All other parameters will cause an XIL_FAILURE to be returned, prompting the memory code to finish the operation.
Note that rotate and lookup require SXDRAM (for which you'll need over 32MBytes on your machine.)
Dyadic functions:
---------------------------------------------------
XIL Function Byte Short Byte Child ---------------------------------------------------
1 band 3 bands 4 bands n bands 3/4 ---------------------------------------------------
xil_add x x x x x
xil_and x x x x x
xil_multiply x x x x x
xil_or x x x x x
xil_subtract x x x x x
xil_xor x x x x x
---------------------------------------------------
Other functions: 1
-----------------------------------------------------------------------------
XIL Function Byte Short Byte Child -----------------------------------------------------------------------------
1 band 3 bands 4 bands 1 band 3/4 -----------------------------------------------------------------------------
xil_add_const x x x x x
xil_and_const x x x x x
xil_divide_const x x x x x
xil_multiply_const x x x x x
xil_not x x x x x
xil_or_const x x x x x
xil_subtract_const x x x x x
xil_subtract_from_const x x x x x
xil_xor_const x x x x x
xil_blend x x x x x
xil_paint x x x o x
xil_scale x x x x x
xil_rescale x x x x x
xil_set_value x x x o x
xil_extrema x x x x x
xil_convolve (see Note 4 below) x x x x x
xil_rotate (Nearest Neighbor only, no x x x x x
ROI)
xil_lookup (see Note 1 below)
xil_color_convert (see Note 2 below)
xil_copy (see Note 3 below) x x x x x
xil_threshold x o o x o
xil_transpose x x x x x
xil_translate x x x x x
xil_get_pixel x x x x x
xil_put_pixel x x x x x
xil_band_combine (see Note 5 below) x (3-
band)
xil_decompress (see Note 6 below)
xil_cast (see Note 7 below)
-----------------------------------------------------------------------------
----------------------------------------
XIL Function From-To Bands ----------------------------------------
xil_lookup 8-8 1 band only
xil_lookup 16_16 1 band only
xil_lookup 8_16 1 band only
xil_lookup 16_8 1 band only
xil_lookup 8-24 1 band to 3 bands
----------------------------------------
---------------------------------------
Source Colorspace to Dest. Colorspace ---------------------------------------
rgblinear to rgb709
rgblinear to ycc709
rgblinear to ycc601
rgblinear to ylinear
rgblinear to cmyk
ycc601 to rgb709
rgb709 to rgblinear
rgb709 to ycc601
rgb709 to photoycc
photoycc to rgb709
cmyk to rgblinear
---------------------------------------
---------------------------------
XIL Function Kernel ---------------------------------
xil_convolve 3x3
xil_convolve 5x5
xil_convolve 7x7
xil_convolve 3x1/1x3 (molecule)
xil_convolve 5x1/1x5 (molecule)
xil_convolve 7x1/1x7 (molecule)
---------------------------------
The following molecules are implemented:
----------------------------------------------
Function Bands (bytes only) ----------------------------------------------
1 3 4 ----------------------------------------------
xil_copy+display x x x
xil_rotate+display x x x
xil_scale+display x x x
xil_set_value+display x x x
xil_translate+display x x x
xil_transpose+display x x x
xil_convolve+xil_convolve x x x (for
separable
convolution)
----------------------------------------------
