Atari Forever 4

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Text File | 1998-03-14 | 17KB | 274 lines

/* * History: * * 90/12/16 1.0 rosenkra - initial release (posted to c.s.atari.st) * * 91/1/7 1.1 rosenkra - change -i to -r * - change -q to -i * - started to add -q (quantize), not complete * - fix bug with zero'ed accumulation arrays * which was being done with every call to * rasterize * - add histogram for each rgb value (eliminate * the "intensity order" histogram, too) * - make UseNTSC global * - fix scan_CM (bug in gemlib read) * - make default -s of 40 * - histogram now impacted by -N (NTSC) * - add -f option * 91/2/25 1.2 rosenkra - add -b option * - -i does not print color map. use -i -i * 91/6/3 3.0 rosenkra - major rewrite using "flicker" * - really interactive only now * - ReadGIF now single entry point * - flicker is single entry point * - does lots of image processing (menu) * including size, blur, brighten, log scale, * contrast expansion, median filter * 91/6/3 3.2 rosenkra - add convolutions * - release to usenet * 91/6/6 3.3 rosenkra - add cut, rotate, mirror * - add flicker file write (*.fl) * 91/6/9 3.4 rosenkra - fix some bugs in file write, median, log * scale, etc * - enlarge/shrink by direction * - cut can work beyond screen size * - add support for .pi1 and .pi2 files * 91/6/13 3.5 rosenkra - point coord selection by crosshairs * - add zoom (2x) * - add histogram on screen in flicker screen * - add copy orig<-->new * **** **** Development continued by Johan Klockars (d8klojo@dtek.chalmers.se) **** * 92/11/09 4.0 Klockars - support for GCC, Lattice C and Turbo C added * - changed to dynamic memory allocation * - less memory used now * - fixed and enhanced clipping * - improved speed in cmaptoint * - file loading speeded up (especially floppy) * 92/12/14 4.1 Klockars - added quick preview using half tone matrix * - cleaned up code to eliminate warnings * - zoom function fixed * - removed slow flickering * - some improvements in the flicker routines * - no assembly linea functions anymore * - memory problem from v4.0 fixed * - pipe operation support begun (MiNT) * - JPEG support by Frank Möhle added * - mgif.c split into three files (command, info) * - convolution works now (it never did before) * - command.c rewritten for array of rasters * - some rewrites to use memset and memcpy * - improved information screen (what) * - speedups in histogram code * - NTSC colour conversion is now default * - command line switches for buffer size added * 93/05/14 4.2 Klockars - GIF89 support added using code by Howard Chu * - lots of rewrites to use movemem for speed * - vertical and horizontal shearing added * - vertical and horizontal scaleing added * - rotation to any angle added * - support for overscan etc by Howard Chu * - changes to make windowed use possible * - now works in any (?) bit plane mode * - no wait for key on start up default * - flag for wait on key on start up added * - .fl format handles aspect ratios 1:1, 2:1 * - don't allocate any buffers when inquire * - permit wildcards for files (not .fl) * - terrible bug in PI1 read code fixed * - rewrite of PI? code for enhanced speed * - correct colour setting in Falcon modes * - quick view in the Falcon true colour mode * - upgraded to JPEG code v 4a * - first attempt at Falcon true colour dither * - improved and centralized key handling * - use only one screen when in true colour * - changed stderr to stdout in most places * - dithering improved by table lookup * - improved cross hair implementation * 93/07/07 4.3 Klockars - GIF decoding speeded up very much * - more speedup due to better interlace handling * - drawing speedup by doing F-S line by line * - TARGA/PPM read supported * - NonTC greyscale support added with switch * - Hold at end switch added * - tell memory handler when raster[1] is freed * - improved memory allocation error handling * - changed help screen * - gif loader now closes files correctly * - name and version info moved to global.c * - IJG gif loader used when small new image * - better i/o handling in command.c * - better checks for image size in process.c * - colour support for jpeg:s added * - source/destination instead of original/new * - support for more than two image buffers added * - general colour support started * - better handling of differently sized buffers * - mapped and direct colour in true colour mode * - slide show option added * - 24 bit jpeg, targa and ppm read * - demap of gifs added * - lots of changes in command.c and process.c * - several files split * - repeat and test commands added * - tempfile bug fixed * - fast gif loading even with small second buffer * - better buffer size defaults * - RGB mode for operations * - colour dithering in true colour mode * - TT support added * - non-malloc jmemtos to remove reallocation errors * - colour dithering in 16/256 colour using IJG code * - ST colour support added * - changes to use buffer struct * - changes to use options struct * - Lattice C and Turbo C fixes * 93/09/21 4.4 Klockars - GEM interface added * - lots of changes to incorporate GUI * - lots of fixes and improvements to GUI * - lots of file splits and new files * - separate check and allocate screen * - destination buffer save/load added * - GIF, PPM and targa save added * - made start with no args equivalent to -gem * - fast assembly 8 bit chunky to planar conversion * - progress window for write, jpeg read and quantize * - relative positions for cut etc * - even faster chunky to planar * - some small fixes in display code * - buffers in alternate ram if single screen * - assembly optimizations for '030 GIF decode * - assembly optimizations for normal GIF decode * - total rewrite of menu handling code * - centering of images added * - skipping of conversion to grey added * - colour dither in 16/256 colours added * - all dither matrices read from file * - optimized assembly code for 256 colour dither * - small bug fix in chunky to planar routine * - test buffer creation from menu added * - menu option for ordered dither * - probably fixed odd address buffer problem * - switches from command line and/or file * - fixes in draw select logic * - switches from environment and program file * - menu option for display after load * - show and flicker draw fixes * - support for GEMView dither matrices * - oil paint effect from xv added * - rewrites in command parsing code * - assembly for 16 colour 24 bit with and w/o dither * - bias added to convolutions for emboss etc * - clip (0-255) disable added for convolutions * - a few bugs in the convolution dialog fixed * - smarter progress report window update * - even more optimization of GIF decode * - assembly for 16 colour mapped display with dither * - selectable number of colours for quantize * - assembly greyscale drawing * - mouse controlled zoom/cut * - improved support for alternate RAM * - use quick chunky to planar when FS-dithering * - assembly FS-dither * - assembly chunky to single plane * - flicker draw speeded up * - some bug fixes in load/save code * - lmin/lmax added * - image subtract added * - loading of AIM .IM files supported * - lots of GUI changes * - popup menu functionality added * - two times median filter speed up * - GUI fixes and updates * - popups implemented as dialog class * - general keyboard short-cuts added * - save dialog popup actually used * - new graphics mode representation * - zoom/cut select code cleaned up * - zoom/cut scroll around added * - old bug in monochrome ordered dither fixed * - many more old bugs fixed * - wildcard .FL load added * - file load on startup for GEM version added * - some new switches added * - improved checks for alternate memory * - totally mouse controlled zoom/cut * - click continue/end for .FL show added * - .FL load from GUI implemented * - convolution dialog behaves correctly again * - support for self-loading .FL files added * - IMG load added * - some option dialog changes * - scrollable normal view added * - a number of small bugs fixed * - switch for fit to screen on load added * - various new switches added * - a couple of simple new dialogs used * - switches etc for aspect correction * - more error alert boxes * - faster greyscale loading of Targa and PPM * - better handling of startup memory allocation * - write IMG added * - use free space in buffers instead of malloc * - minor memory leakages patched up * - switch for debugging added * - full dialog functionality for IMG save * - F-S dithering for IMG save added * - some minor bug fixes * - some VDI support for 256 colours implemented * - memory alignment problems on draw fixed * - border function added * - extended commands for text interface * - general image combine function added * - support for UNDO added * - time delay for slide show added * - switch for TT grey mode added * - various improvements * - image type change added * - local colour maps * - better handling of image types when processing * - real logarithms for log scale * - all point operations done by redistribution * MGIF 5.00 is now the official name, this is after all a _major_ update * - more drawing types stoppable * - a couple of more switches * - full VDI draw support for 8 bit modes * - default setting in program file implemented * - improved coordinate showing for cut/zoom * - a little MultiAES awareness added * - smarter buffer handling for GIF load * - in place (but slower) deinterlace * - switch for GIF decoder select added * - pixelize function added * - startup dialog improved * - switch for busy bee added * - screen size on load for non-GUI mode * - load control code cleaned up a bit * - some slide-show cleanups * - slide-show loop, random and script file added * - (X)IMG load bugs for < '020 fixed * - switch for stable flicker under MiNT added * - various crash problems eliminated * - save from destination now possible * - smarter buffer handling for image loading * - JPEGD use for non-mapped (not distributed) * - more user defined for border, blur and oil * - various bug fixes * - various minor improvements * * 95/12/21 MGIF 5.00 finally released! */ MGIF v5.01 (released 960312) ---------------------------- 960208 - A DSP routine capable of both convolutions and median filtering (3x3 squares) was added. Speedup of about ten and five times respectively! 960312 - Some minor fixes regarding mouse and text cursor visibility. The DSP code loader now behaves better.