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subspace68k.readme
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2001-07-04
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Short: Geiss/G-Force like plugin for AmigaAMP (68K)
Author: Thomas Wenzel (68K port by SuRgEoN)
Uploader: SuRgEoN (christian.michael@groenjord.dk)
Type: mus/play
VBCC compiled 68K-port of Thomas Wenzel's cool Subspace-plugin for AmigaAmp.
Background story:
I wanted a good looking plugin for my recently acquired Mediator/Voodoo3.
Subspace was the most interesting open-sourced non-W3D plugin I could get my hands on.
Unfortunately it is also very demanding with respect to cpu and bandwidth to gfxcard.
Minimum requirements:
- AmigaOS 3.1
- full 68060 (66MHz is strongly recommended)
- fast gfxcard (Mediator1200 with Voodoo3 will do just fine)
- Picasso96 2.0 or CyberGraphX v3
- 320x200 or 320x240 8-bit screenmodes
Performance: (tested with Blizz1260/66 and Mediator1200/Voodoo3-3K, latest mmu driver)
Using medium quality audiodecoding, freqdiv 2 and optimised prefs/settings (see below):
Subspace_68k_LO version (240x112) 11 fps
Subspace_68k_MED version (272x144) 8 fps
Subspace_68k_HI version (288x176) 6 fps
Subspace will probably not look good on anything less than a 66Mhz 060, sorry.
How to achieve highest stable framerate for Subspace plugin with AmigaAmp-Prefs:
- set play buffer to 1/10 second
- loadbuffer should be "file" to eliminate HD access
- task priorities: main=1, play=1, vis=0
(note: side-effect is that you can not change settings while playing)
- decrease the audio quality (freqdiv: 2 or 4, quality: medium or low).
(note: the plugin should be run at 0 priority with AmigaAmp setup like above)
- choose backdrop and immovable mode (from menu), then save settings.
Notable changes from PPC/WOS version:
- Picasso96 supported!
- Screenmode Requester (320x200 or 320x240 8-bit modes)
- 'T' key toggles song-title display (default on)
- 'L' key locks/unlocks current waveshape/deltafield combination
- static palettes (palette randomizer produced ugly results too often)
- some ugly waveshapes left out.
- 3 versions: 240x112, 272x136 and 288x176 centered on 320x200 screen
- tooltype support is missing, hence the 3 versions
- source adapted for VBCC (it looks a quite messy:)
History (68k version)
- first release
Future:
- make it amplifier compatible
- aspect correction for 320x200 screenmode
- maybe add AGA support
Thanks:
Thomas Wenzel for AmigaAmp and for open-sourcing for this cool plugin!
Original readme from Subspace:
------------------------------
Homepage
--------
http://amigaamp.amiga-software.com
History
-------
v1.0 - initial release
v1.1 - more warpfields
- more waveshapes
- more colormaps
- experimental PowerUP version
Legal
-----
Copyrighted Open Source Freeware. All restrictions and distribution
conditions of AmigaAMP apply. Based on and inspired by G-Force for
WinAMP.
Don't ask me too many things about the PowerUP version! Running several
PowerUP tasks at different priorities is very unstable on my system, so
I decided to use WarpUP which is much more reliable here. However, some
people have reported the contrary, so it's worth a try. If it doesn't
work - bad luck. If it hangs - bad luck. Don't bother me :)
Usage
-----
Just start the plugin while AmigaAMP is running in skin mode. For the
PowerUP version to run smooth don't set AmigaAMP's PPC decoder priority
to anything higher than 0.
Key assignments
---------------
ESC - quit
F - show framerate on/off
W - show waveform on/off
I - show info about program on
Options/ToolTypes
-----------------
RESOLUTION - LOW = 320x240, HIGH = 640 x 480
SCREENSIZE - Override default vertical screen [25 .. 100] in percent
MAXFPS - Limit framerate to the number specified
Example
-------
RESOLUTION=HIGH
SCREENSIZE=50
MAXFPS=10
Minimum requirements
--------------------
AmigaOS 3.1
CyberGraphX v3
PowerPC 603e or 604e (PowerUP AND WarpUP supported!)
Fast graphics card (Z3, PCI or Local Bus)
More info
---------
See AmigaAMP's documentation
The framerate heavily depends on the throughput of you graphics bus.
A CyberVisionPPC along with a PPC604e-200 will give you about 20fps
in low resolution/full size and 10fps in high res at 66% screensize.
Everything less is probably slower.
It may be nessecary to select at least 1/5s playback buffer in AmigaAMP
for uninterrupted playback.
Future plans
------------
- More Waveshapes and Warpfields
- Particles
- Minor speed optimizations
============================= Archive contents =============================
Original Packed Ratio Date Time Name
-------- ------- ----- --------- -------- -------------
2802 1843 34.2% 04-May-01 10:00:16 +src.info
5251 1459 72.2% 04-May-01 09:59:42 +Deltafields.c
5270 1466 72.1% 04-May-01 09:59:42 +Deltafields4.c
5278 1464 72.2% 04-May-01 09:59:42 +Deltafields_OPT.c
582 330 43.2% 04-May-01 09:59:42 +makefile
746 339 54.5% 04-May-01 09:59:42 +makefile.vbccm68k
1011 381 62.3% 04-May-01 09:59:42 +makefile.vbccm68k_OPT_LO
1012 382 62.2% 04-May-01 09:59:42 +makefile.vbccm68k_OPT_MED
247 137 44.5% 04-May-01 09:59:42 +SCOPTIONS
286 185 35.3% 04-May-01 09:59:42 +smakefile
33600 10054 70.0% 04-May-01 09:59:42 +Subspace.c
33369 10100 69.7% 04-May-01 09:59:42 +Subspace68k.c
36461 10886 70.1% 04-May-01 09:59:42 +Subspace68k2.c
54597 12283 77.5% 04-May-01 09:59:42 +Subspace68k3.c
53444 11972 77.5% 04-May-01 09:59:42 +Subspace68k4.c
55499 12660 77.1% 04-May-01 09:59:42 +Subspace68k_FS.c
55337 12549 77.3% 04-May-01 09:59:42 +Subspace68k_HS.c
55608 12669 77.2% 04-May-01 09:59:42 +Subspace68k_MS.c
632 347 45.0% 04-May-01 09:59:42 +TrackInfo.h
10711 2376 77.8% 04-May-01 09:59:42 +Waveshapes.c
10538 2308 78.0% 04-May-01 09:59:42 +Waveshapes4.c
18495 2620 85.8% 04-May-01 09:59:42 +Waveshapes_OPT.c
4377 2260 48.3% 04-May-01 09:59:40 +Subspace68k.readme
47764 24366 48.9% 04-May-01 09:59:42 +Subspace_68k_HI
1846 1297 29.7% 04-May-01 10:00:16 +Subspace_68k_HI.info
47724 24307 49.0% 04-May-01 09:59:40 +Subspace_68k_LO
1846 1298 29.6% 04-May-01 10:00:16 +Subspace_68k_LO.info
47840 24395 49.0% 04-May-01 09:59:40 +Subspace_68k_MED
1846 1300 29.5% 04-May-01 10:00:16 +Subspace_68k_MED.info
-------- ------- ----- --------- --------
594019 188033 68.3% 04-May-101 20:17:52 29 files