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-- $Date: 2004/02/23 08:44:24 $
-- $Revision: 1.13 $
-- $Author: jcrocholl $
with Ada.Streams.Stream_IO; use Ada.Streams.Stream_IO;
with Gray_Images; use Gray_Images;
package PGM is
-- Raised if the magic number is not P5.
Expect_P5 : exception;
-- Raised if the maxval is not 255.
Expect_Maxval_255 : exception;
-- Read a gray image from a portable graymap stream.
function Read
(Stream : in Stream_Access) -- Read from this stream.
return Gray_Image_Access; -- The newly created image.
-- Read a gray image from a portable graymap file.
function Read
(Filename : in String) -- Open a file with this name.
return Gray_Image_Access; -- The newly created image.
-- Write a gray image to a portable graymap stream.
procedure Write
(Stream : in Stream_Access; -- Write to this stream.
Image : access Gray_Image'Class); -- Write this image to the stream.
-- Write a gray image to a portable graymap file.
procedure Write
(Filename : in String; -- Create a file with this name.
Image : access Gray_Image'Class); -- Write this image to the file.
-- Write a gray image to a portable graymap file on standard output.
procedure Write
(Image : access Gray_Image'Class); -- Write this image to stdout.
end PGM;