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-- $Date: 2004/03/08 11:09:21 $
-- $Revision: 1.2 $
-- $Author: jcrocholl $
-- with Messages; use Messages;
-- with Integer_Strings; use Integer_Strings;
package body Gray_Images is
-- Compare two gray pixels.
function Darker
(A, B : in Gray_Pixel) -- Compare these pixels.
return Boolean -- A is darker than B.
is
use type Gray_Pixel;
Int_A : Integer := Integer(A);
Int_B : Integer := Integer(B);
begin
if Int_A < 0 then
-- Debug("A < 0:" & To_String(Int_A));
Int_A := Int_A + 256;
end if;
if Int_B < 0 then
-- Debug("B < 0:" & To_String(Int_B));
Int_B := Int_B + 256;
end if;
return Int_A < Int_B;
end Darker;
-- Solid color background fill.
procedure Fill
(This : access Gray_Image; -- Fill this image.
Color : in Gray_Pixel) is -- With this color.
begin
This.Pixels := (others => (others => 255));
end Fill;
end Gray_Images;