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library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use work.pixel_pkg;
package pixel_column_pkg is
generic(
NBITS : natural;
NBR_OF_CHROMA : natural;
NBR_OF_ROW : natural;
package local_pixel_pkg is new pixel_pkg
generic map (<>)
);
use local_pixel_pkg.all;
type TYPE_PIXEL_COLUMN is array (NBR_OF_ROW-1 downto 0) of TYPE_PIXEL;
function std_logic_vector_to_pixel_column
(in_vector : in std_logic_vector(NBR_OF_ROW*NBR_OF_CHROMA*NBITS-1 downto 0))
return TYPE_PIXEL_COLUMN;
end package pixel_column_pkg;
package body pixel_column_pkg is
function std_logic_vector_to_pixel_column( in_vector : in std_logic_vector(NBR_OF_ROW*NBR_OF_CHROMA*NBITS-1 downto 0))
return TYPE_PIXEL_COLUMN is
variable pixel_column : TYPE_PIXEL_COLUMN;
begin
for row in 0 to NBR_OF_ROW - 1 loop
pixel_column(row) := std_logic_vector_to_pixel(in_vector((row+1)*NBR_OF_CHROMA*NBITS-1 downto row*NBR_OF_CHROMA*NBITS));
end loop;
return pixel_column;
end function std_logic_vector_to_pixel_column;
end package body pixel_column_pkg;
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