Club Amiga de Montreal - CAM/CAM_CD_1.iso/files/428.lha/cbtaudio/revision.h

Text File | 1990-08-28 | 13KB | 272 lines

"My mistress' eyes are nothing like the sun."
                                               Shakespeare/Sting


CBTAudio (c) 1989 by Jerry J. Trantow

This program was originally written to test out volume modulation ideas on the Amiga.  It has gradually become an Intuition Program.  I have a lot of high hopes for it, but a lot of hardwork remains.  Unfortunately I have not stuck the volume modulation b









ack in yet.

  Some of the More Interesting PLANS
    Linking of Windows for Looped Sound
    Filtering the Loops to Avoid Clicks
  * Aggressive Techniques to Play back >8bits of resolution
    Adaptive Filtering
    Seperate tasks for audio, display, and interface
  * Samples reside in either FAST or CHIP Ram (Double Buffering)
  * CD type 2 or 4 times oversampling SHOULD BE DONE
    Adjustable Screen Size, Type and Position would be nice
  * Clipboard functional with standard Amiga programs
    FFT Clipboard compatible
    Need to add Special/Decimate and FFT/Window functionality
    Faster Selecting using DELTA MOUSE MOVES
    Human Hearing Tranfer Function Display
  * Fancier Gadgetry
    Full range of Filtering Functions including Adaptive
    ASM the FFT(), Filter() etc to get performance increases
 ** Need to add Fade In / Fade Out to the Amplify Feature (Easy)
    Dynamically size menus/gadgets or explicitly declare fonts
  * Memory cleanup to flush WHENEVER low memory
    FFT editor for Don Senzig
    GadgetIntuiText be selectable (LONG/SHORT menus)
    various data compression schemes
    should allow projects to pass environment if ~extended
    Display should have a vert scroll Gadget to show volume
    Need to watch for 2*64K Limitation in Play()
    Make the ChunkList editable (Utility)
    Make the ToolType Array editable (Utility)
    Save/Load variety of formats (Utility)
    fr should be an structure instance instead of a pointer
    Should implement LACE ToolType and check for PAL
  * Need to have Execute Requester pop up on the CUSTOMSCREEN

  History
  Spring1986  Started audio.c used assembly to play back samples
        1987  Changed from mix of ASM & C to Complete C
  5 Feb 1988  Changed over to a Multiple Project Scheme
 10 Feb 1988  Added Mouse Selection to the Display
 13 Feb 1988  Mouse Select Works
 14 Feb 1988  Partitioned Program (It's about time!!)
 15 Feb 1988  Fixed File input for AZTEC_C
 17 Feb 1988  Worked on Zoom In, Zoom Out
 23 Feb 1988  Added Flags to Node Structure
 24 Feb 1988  Fixed Gadget MOUSEMOVEs screwing up select
 24 Feb 1988  Gave up on DELTAMOVEs w/Select
 26 Feb 1988  ModifyProp() math to FLOATs, ULONG overflowed
 27 Feb 1988  Changed loop variables in Display() for speed
 19 Feb 1988  Did some more partioning - cleanup()
 24 Mar 1988  Added Access! File and Color Requesters
 26 Mar 1988  Added IFF Reader
 30 Mar 1988  Added CUT functionality (non-clipboard)
 31 Mar 1988  Added PASTE,COPY functions (still non-Clipboard)
  *********** CBT00 ****************************************
  1 Apr 88  Cleaned up the Menus a little, Added COMMSEQ
  1 Apr 88  Added PLAY Gadgets to all windows
 10 Apr 88  Incorporated FFT
 10 Apr 88  Added Special and FFT to MenuBar
 10 Apr 88  Implemented SPECIAL_Amplify (AUTORANGE)Function
 10 Apr 88  Added SPECIAL_Frequency that multiplies freq by .7
 ************** CBT01**************************************
 11 Apr 88  Changed Project Windows to be SIMPLE_REFRESH
 11 Apr 88  Screen Size uses GfxBase->Normal Values
 12 Apr 88  Fixed Amplify Problem
 20 May 88  Fixed up the IFFRead to Pad the NAME,ANNO,etc chunks
 20 May 88 Added ChunkList and Voice8Header to Jerrys Node
 23 May 88 Added RectFill() to Display() to clear empty windows
  1 Jun 88 Added Requesters for AMPLIFY,FREQUENCY and MULTIPLE
 ************** CBT03 **************************************
 16 Jun 88 Finished ChunkList linked to Node and IFFWriter()
 16 Jun 88 Started coding the OverSampling IDEAs
 21 Jun 88 Did a little bit of ASM speed up to Display()
      Looks like an easy 20% size and factor of 2 in speed
 22 Jun 88 Added some mutual excludes to the menus
 23 Jun 88 Explicitly defined register vars : 4% code size saved
 27 Jun 88 Made the Play Gadgets a little more recognizeable
  5 Jun 88 Lost a lot of time tracking FFT cleanup problem
  7 Jul 88 Strip() was Nulling the UserPort before SafeClose
 24 Jul 88 Added Busy Pointer to the FFT() and Display()
 25 Jul 88 Added Select Pointer for Mouse Selections
 27 Jul 88 Register Variables in audio5.c to speed Mouse Select
     Mouse Select is still too slow, Needs to use ReportMouse()
 27 Jul 88 Off/OnMenu() for Cut, Copy, Paste
 27 Jul 88 Implemented Crude Filtering
  8 Aug 88 Added File Open Cancel code
  8 Aug 88 Added WaitTOF()s for Select All
  8 Aug 88 Changed Screen BackGround
 23 Oct 88 Somehow managed to lose revision file, used old backup
********************  CBT05 Release *****************************
 24 Oct 88 Released CBT05 along with some sounds
  1 Nov 88 Figured out most of the WB, still need to write icons
  6 Nov 88 Support multiple Project startup from the WorkBench
  6 Nov 88 Support for COLOR= and ICON=
  7 Nov 88 Fixed the 0 select problem with the play selection
  8 Nov 88 Starting Cleaning for Fred Fish Submission
  9 Nov 88 Fixed NO_ICON_POSITION for default saves
  9 Nov 88 Fixed SampleRate/2 in FFT display Window
  9 Nov 88 Added SaveAs Requester for Default Project Name
 15 Nov 88 Started an About Requester
 30 Nov 88 Entered code on Prop_Gad_Calculate()
  1 Dec 88 Integer Proportional Gadget works fine
 17 Dec 88 Changed over to 1.3, Was unable to recreate problems
 10 Jan 89 Sidetracked some time on Prop Gadget Example
           Results are cleaner calculations that work >< 64K
 23 Jan 89 Compiled with +f8 for Lucas Board (ffts fast!!)
  2 Feb 89 Finished PropGadget Example, found Rob Peck's example
  2 Feb 89 Added the a bunch of DEFAULT_DIR to the WB tool info
  3 Feb 89 Tool Info saves the Defaults
  5 Feb 89 Tool Info works with LAST_DIR
  8 Feb 89 TOOL Info settings (DIRs, COLOR, ICON) are remembered
  8 Feb 89 PROJECT Icons get modified ToolTypes & Default Names
 13 Feb 89 Posted ffp and f8 versions to PSA
----------------------------------------------------------------
 18 Feb 89 Put _checkMath() into f8 version to exit gracefully
 18 Feb 89 Replaced _checkMath with C statement
  5 Mar 89 eliminated floating point in amplify and mouse select
  5 Mar 89 Split the amplify section off from menu.inc
  9 Mar 89 Added Shrink/Expand Gadgets to all the windows
           Help from Marco P -Thanks-
 14 Mar 89 Finished Images,etc for shrink/expand project window
 18 Mar 89 Implemented WINDOW= for WBmessage and file save
 19 Mar 89 Added WBIconPtr to project
 24 Mar 89 Split off functions to work on ToolTypes (tool.inc)
 30 Mar 89 Finished AllocTool() & FreeTool() for better support
  4 Apr 89 Fixed p_open() to work with startup message or menu
  5 Apr 89 WINDOW= string during all opens, saves
  9 Apr 89 Updated the comments a little bit (DEFAULT_ -> DEF_
  9 Apr 89 Started JJTsDisplayBeep to replace all the printf
 15 May 89 My wife finished her paper, so I can play again
 15 May 89 Brought Voice8Header into the JerrysNode structure
 15 May 89 Play() looks at Voice8Header to get the volume
 16 May 89 Implemented FLUSH= to flush libs/fonts on exit
 22 May 89 Samples are played as they get read in
 22 May 89 Implemented EDIT_KEEP option
  1 Jun 89 Iplemented an OPENSND when program starts
 12 Jun 89 Implemented REVISED Flag in the JerrysNode Structure
 12 Jun 89 .Voice8Header should really be a pointer to the VHDR chunk
 18 Jun 89 Fixed fseek() in iff.c and implemented FileSave if changed
 18 Jun 89 Sent a version to Pixelations, to demonstrate ToolTypes
 --------------------------------------------------------------------
 19 Jun 89 Hacked up Play(), SetUpAudio(), etc to play VolModulated
 still need to AllocJerrysNode for Volume and set up Volume Body
 19 Jun 89 Serious hacking on  PlayCursors(), started double buffering
 21 Jun 89 There are a lot of Arp functions I would like to use
           could not find the "C" bindings 'ArpBase.h' so it must wait
 23 Jun 89 Changed to ARP library to avoid the FileRequest(),PathName
 23 Jun 89 Arp CloseWSafely() saved me 96 bytes of code
           Arp Create,DeletePort() saved 280 bytes
           Arp Puts() saved 68 bytes
 23 Jun 89 fixed Window Titles were occasionally munged from Save_as
 23 Jun 89 Temporarily disabled palette()-should use WorkBench Tool
 23 Jun 89 Using Arp saved at least 7.5K of data ~6K of code
 24 Jun 89 Removed DEF_DIRs which are not use with ARP
 27 Jun 89 Disabled code for infinite Play because of synchronous Play
 28 Jun 89 Execute(sys:tools/Palette) to change Screen Colors
  8 Jul 89 Changed Screen Depth from 3 to 2 for memory conservation
  8 Jul 89 Added a very basic PROJECT_ABOUT window
  9 Jul 89 Fixed Scroll Gadget because Play() was word aligning cursors
 12 Jul 89 Added some ASM to display() to speed up display
 15 Jul 89 Directed Requesters to BackWindow, Execute Req still goto WB
 15 Jul 89 Turned off Refresh during FileRequest fixes refresh twice
 15 Jul 89 Started to Highlight selection in display()
 17 Jul 89 Removed Floatpt from gadget.inc, removed some cases in menu.inc
 25 Jul 89 Added ellipsis and general cleanup
 27 Jul 89 Added GraphicDump to Print menu option
 13 Aug 89 Found error in EDIT_KEEP, now use byteCopyMem() in ASM
 20 Aug 89 Now sets the File Comment
 23 Sep 89 Now uses the pathname when Extended Selecting icons
 24 Sep 89 Huffman Compression works, but not written up as IFF extension
  1 Oct 89 Measured 62% to 28% Entropy savings with Delta Huffman code (ave=40%)
  4 Nov 89 Restored support of samples with repeatHiSamples, check for compression
 14 Nov 89 Added SpinPointer to Busy Pointer
  3 Aug 90 After a long spell of school, work, etc I cleaned up SpinTask
           and changed the implementation of the busy Pointer

Program Requirements

With an Four Color Screen approximately 100K is required to run the program.  You must have ARP.library in LIBS: and you should assign TOOLS: to the directory that the WorkBench palette program is in. (it comes on Disk2 in the
Tools directory) assign TOOLS: df0:tools

The sounds are played synchronously right now.  I will return to asynch when I add in the double buffering.  This will allow multiple samples and the samples wouldn't have to be in MEMF_CHIP. (just the buffers will)  This will take a week or so of program









ming to have Play() as a task and useinterrupts to switch buffers.  Hopefully, I can integrate Volume Modulation back in at this time.

I am interested in providing sound support to anyone developing an Amiga program.

Jerry J. Trantow
1560 A. East Irving Place
Milwaukee, Wi 53202
[phone]

If you are fortunate enough to have an 020-881 combo you can use the
version CBTAudio_f8.  This will ONLY work with a math chip in the co-
processor mode.  (i.e. the CMI board which uses a 68000 and a 881 or 882
in peripheral mode will not work)

The program supports the WorkBench, I suggest you use extended select (shift
key) to start multiple projects.  In order to use the defaults in the tool
icon you must select it before or with the double click.

I check the Tool.info for

ICON=fileName    Name of default ICON (does not have to be a PROJECT)
COLOR=fileName   needs to be the peculiar hex file Keith defined.
OPENSND=fileName Sound to play when program starts
LAST_DIR= last(present) directory used in file requester
AUTO_PLAY=Y      Plays the sample when it gets opened
AUTO_PREF=Y      This en/disables the automatic saves to the .info files
AUTO_ICON=Y      Adds the default Icon if the file doesn't have an Icon
DELAY=3          Number of seconds to delay before exiting program (debugging)
FLUSH=Y          Flushes Libraries and Fonts when exiting
WINDOW=          Use this to see any debugging messages

FONT1=Not implemented Yet
FONT2=Not implemented Yet
ERROR_BEEP= Not Implemented Yet
PLUS_MORE_TO_COME.....

I check the Project.info for the following

FILETYPE=8SVX
WINDOW=          Dimensions to open the window with

Please check the .info file and customize to your hearts content.

Known Bugs

I still do a CleanUp() instead of a DisplayError() on Gadget Memory allocations
The probablility of this causing a problem is relatively low, but could cause
a problem with low memory.

First time the program is run and opens a project I lose 24 bytes (a lock?).  On
subsequent runs this loss does not occur.  I have not tracked this down.

I had a guru when opening a ~IFF file.  I did not track this down yet.


Special Thanks

To Keith Young (of Access! Fame ) whose file and color requester
were blatantly used (until I converted over to the ARP religion).

Thanks to Rob Peck for his example on Saving .info information, I still
can not believe how easy it was!!!

To all the ARP programmers who have done such a wonderful job!