gifcompose(1)						      General Commands Manual						     gifcompose(1)

NAME

       gifcompose - The gifcompose program uses the GIFLIB utility tools to support a minilanguage for describing GIF pasteup sequences.

USAGE

       gifcompose [-v] <specfile

Specification Syntax
       The gifcompose tool takes a series of text lines and interprets them as commands to do pasteup operations. The commands are:

Generators
       gif <name>

	      Paste in <name>.gif

       raw <name> <width> <height>

	      Paste  in  the given raw-format file (no suffix supplied).  Raw format is a stream of 8-bit indices into the EGA color map.  Accord-
	      ingly, the width and height must be specified, and the source must be exactly width times height bytes long.

       rgb <name> <width> <height>

	      Paste in the given RGB-format file (no suffix supplied).	Raw format is a stream of 24-bit color values.	Accordingly, the width and
	      height must be specified, and the source must be exactly 3 times width times height bytes long.

       rle <name>

	      Paste in the given RLE-format file (no suffix supplied).	This converts the Utah Raster Kit format to GIF.

       text <text> [foreground <index>] [color <r> <g> <b>]

	      Copy  8x8 monospace font, with transparent background and index 1 as foreground.	If the text string contains whitespaces, they must
	      be escaped or the string must be quoted (shell conventions).

	      The optional suffix `foreground <n>' sets the foreground color index.  The optional suffix `color <r> <g> <b>' sets the RGB color to
	      be used for the foreground index.

	      Each generator operation may be followed by any combination of the following suffixes:

Modifiers
       at <x> <y>

	      Place the image at the given (upper-left-hand-corner) coordinates in the pasted-up result.

       clip <name> <top-x> <top-y> <bottom-x> <bottom-y>

	      Clip image using the given rectange, paste it onto.

       xflip

	      Flip the image around the X axis before placing it.

       yflip

	      Flip the image around the Y axis before placing it.

       left

	      Rotate the image 90 degrees counterclockwise before placing it.

       right

	      Rotate the image 90 degrees clockwise before placing it.

Target Operations
       screen size <x-size> <y-size>

	      Set the global screen size of the final image.

       screen position <x> <y>

	      Set the global screen position of the final image.

Comments
       Comments or comment lines may be preceded with `#' and will be ignored.

MEMORY REQUIRED

       Proportional to the size of the largest pasted image.

OPTIONS

       [-v]

	       Emit a report on each composition action to stderr as it happens.

BUGS

       The suffix sequence `left left' sometimes mysteriously fails to work, probably due to some restriction in <a href="gifflip.html">gifflip

       No support for resizing or odd-angle rotations yet.

       The `color' suffix of text is a no-op, because the present version of <a href="gifovly.html">gifovly

       Error checking is rudimentary.

AUTHOR

       Eric S. Raymond <esr@snark.thyrsus.com>

       Man page created by T.Gridel <tgridel@free.fr>, originally written by Eric S. Raymond <esr@thyrsus.com>

								   giflib-tools 						     gifcompose(1)