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1995-01-12
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NAME
BigAnim - Displays IFF animations
SYNOPSIS
Usage: BigAnim filename [LOADALL] [HIRES] [BLANK] [VERBOSE]
[BUFSIZE n] [RELTIME n] [TASKPRI n]
DESCRIPTION
BigAnim displays IFF ANIM animations, types 5 and 7. Normally (if
the switch LOADALL is not used), BigAnim loads the animation using a
double-buffering method, so that the frames in the first buffer are
being displayed while the second buffer is being filled. The default
buffer size is 100 KBytes, and it can be set with the option BUFSIZE.
On pre-V39 systems, BigAnim takes over the display from intuition,
but only when BigAnim's screen is the frontmost one, and if it hasn't
been dragged down. This means that you can flip screens or pull down
BigAnim's screen at any time, but when you do this, BigAnim will be
forced to use a slower, intuition-friendly display method.
On systems running V39 (or later), BigAnim will use new the double-
buffering routines in graphics.library.
OPTIONS
LOADALL Tells BigAnim to load the whole animation before
starting playback.
HIRES Forces the screen resolution to Highres/Interlace.
BLANK Blanks the mouse pointer.
VERBOSE BigAnim prints some info about the animation, such as
screen size/depth, display modes and animation type.
BUFSIZE n Sets the buffer size to n bytes. The default is 102400
(100 KBytes). If LOADALL is used, the animation will
will be loaded in chunks of n bytes. If LOADALL isn't
used, BigAnim will need two buffers of n bytes for the
double-buffering loading method. Note: If the entire
animation can be loaded in those two buffers, BigAnim
will behave as though LOADALL was used.
RELTIME n Sets the playback timing, in 1/50 seconds if you're
running on a PAL system, or 1/60 for NTSC systems.
TASKPRI n This sets BigAnim's task priority during playback.
If your hard disk controller doesn't use DMA, the
playback will probably be less jerky if you use a
high task priority.
KEYS
ESC Quits BigAnim (you can also use the right mouse button)
Space Pauses the animation, or restarts if already paused
N If paused, displays the next frame
0-9 Changes playback speed. By pressing one of the keys
F1-F10 1-9 or F1-F9 you can directly set the RELTIME value.
If you press 0 or F10, BigAnim will use the timing
information stored in the animation.
ENVIRONMENT
BIGANIMOPTS Set this to whatever options you want to use as
default. All options except LOADALL can be used.
AUTHOR
Christer Sundin (d8sunch@dtek.chalmers.se)