#ifndef POSTLIB_H #define POSTLIB_H /*------------------------------------------------------------------------*/ /* * * $Id: postlib.h,v 2.20 1996/05/09 18:38:02 heinz Exp $ * */ /*------------------------------------------------------------------------*/ /*------------------------------------------------------------------------*/ /* PostScript interpreter file "postlib.h" - library interface header (Amiga) * * Based on postlib.h 1.7, (C) Adrian Aylward 1989, 1991. * * This file defines the library interface, so that other programs can * use the PostScript drawing machinery. It is totally Amiga specific. * * All versions >=2.0 ©1993-1996 HWG, For Joan Thuesen. * * HWGPOST leans heavily towards PostScript Level 2 * * All rights reserved. Commercial use of HWGPOST only with my permission! * Read the docs for further information on legal issues. * Don't use HWGPOST without reading up on the legal issues! * * * Heinz Wrobel * Karlstr. 16 * 82131 Gauting * Germany * FAX +49 89 850 51 25 (I don't like phone calls) * * */ #include #include /*------------------------------------------------------------------------*/ /* Default and minimum memory sizes */ #define defmemflen 60000 /* Font cache */ #define defmemhlen 20000 /* Halftone screen cache */ #define defmemvlen 50000 /* VM segment length */ #define defmemllen 15000 /* Path element memory */ #define defmemplen 60000 /* Pattern cache */ #define minmemflen 5000 #define minmemhlen 1000 #define minmemvlen 5000 #define minmemllen 1000 #define minmemplen 5000 /*------------------------------------------------------------------------*/ /* The device page and parameter block */ /* ************************************************************************** *** IMPORTANT NOTE: For anything below, the General Amiga Development *** *** Guidelines as described in the Addison Wesley "ROM *** *** Kernel Reference Manual Libraries" are valid. *** *** *** *** Note especially that "Fields that are not defined *** *** to contain particular initial values must be *** *** initialized to zero. This includes pointer *** *** fields." and "All reserved or unused fields must *** *** be initialized to zero for future compatibility." *** ************************************************************************** */ /* A possible extension to the device structure described below */ struct PSextdevice { unsigned long flags; unsigned char *maskbuf; unsigned char *Kbuf[8]; unsigned char *alphabuf[8]; long reserved[16]; /* The length of this structure is subject to change. */ }; /* The standard device structure */ struct PSdevice { /*--------------------------------------------------------------------- "buf" These are 24 bitplane pointers which can be set or cleared. HWGPOST will just ignore NULL pointers to make masking possible. "len" This value gives the total length in bytes of the memory for one bitplane. "depth" How many bitplanes should be used at all. "flags" Various. See below. "bitspercolor" To specify how many bitplanes are used per color, you set "bitspercolor" to the appropriate value. If this value is not set, one bitplane per color is assumed. Example: RGB 3:3:2 => depth=8, bitspercolor=3 "PSextdevice" Set it for the special features or leave it NULL. "xoff", "yoff" To specify rendering offsets into the bitplanes. "xbytes" The size of one row in a bitplane in bytes. "xsize", "ysize" The size of the bitplane in pixels. "ybase" The first row to draw into for band rendering. "yheight" The number of rows to use for band rendering. "xden", "yden" The dpi values to use. "ydir" Direction of the y axis for rendering. Fields in the extended device structure: "flags" See below. "maskbuf" If set, must be a plane as in "buf". For any rendering you'll get bits set in this mask plane. This gives you a mask of the actually used places in the buffer. The mask might be useful for BltMaskBitMapRastPort() or some such. erasepage will clear this mask plane. "Kbuf" The missing eight plane pointers to be able to do CMYK rendering with 8 bits per color. "alphabuf" Plane pointers for an alpha channel. Do not use or set until further notice. --------------------------------------------------------------------- */ unsigned char *buf[24]; int len; short depth; unsigned char flags; unsigned char bitspercolor; struct PSextdevice *PSextdevice; short xoff, yoff; short xbytes, xsize, ysize; short ybase, yheight; short xden, yden; short ydir; }; /* Definitions for the flags field in the standard device structure */ #define HWGPOST_DEVB_NOSHADE 0 /* Suppress any halftoning */ #define HWGPOST_DEVF_NOSHADE 0x01 #define HWGPOST_DEVB_CMYK 1 /* CMYK instead of RGBW */ #define HWGPOST_DEVF_CMYK 0x02 #define HWGPOST_DEVB_INVERTOUTPUT 2 /* Inverted rendering */ #define HWGPOST_DEVF_INVERTOUTPUT 0x04 /* Flags defined for the extended device structure */ #define HWGPOST_EXTDEVB_USEALPHACHANNEL 0 /* Not implemented */ #define HWGPOST_EXTDEVF_USEALPHACHANNEL 0x01 /*------------------------------------------------------------------------*/ /* The parameter block */ struct PSparm { /*--------------------------------------------------------------------- "page" The page description to set on startup. "memvlen", Memory size in bytes to use for VM segments. "memflen", the font cache. "memllen", path elements. "memhlen" halftone screens. "userdata" Data passed to the "flushfunc" and "copyfunc". "flushfunc", Callback functions to implement page flushing and "copyfunc" copying to the display. "infh", AmigaDOS (BPTR) handles to implement %stdin, "outfh", %stdout and %stderr. "errfh" "funcmax" Number of external functions. "functab" Pointer to external function table, or zero. "reserved" DO NOT TOUCH AND SET TO ZERO! --------------------------------------------------------------------- */ struct PSdevice page; int memvlen, memflen, memllen, memhlen; APTR userdata, flushfunc, copyfunc; BPTR infh, outfh, errfh; int funcmax; APTR *functab; long reserved[2]; }; /*------------------------------------------------------------------------*/ /* Errors */ #define errdictfull 1 #define errdictstackoverflow 2 #define errdictstackunderflow 3 #define errexecstackoverflow 4 #define errinterrupt 5 #define errinvalidaccess 6 #define errinvalidexit 7 #define errinvalidfileaccess 8 #define errinvalidfont 9 #define errinvalidrestore 10 #define errinvalidstop 11 #define errioerror 12 #define errlimitcheck 13 #define errnocurrentpoint 14 #define errrangecheck 15 #define errstackoverflow 16 #define errstackunderflow 17 #define errsyntaxerror 18 #define errtimeout 19 #define errtypecheck 20 #define errundefined 21 #define errundefinedfilename 22 #define errundefinedresult 23 #define errunmatchedmark 24 #define errunregistered 25 #define errVMerror 26 #define errmemoryallocation 27 #define errkill 28 #define errconfiguration 29 #define errundefinedresource 30 #define errmax 31 /*------------------------------------------------------------------------*/ /* Flags to control interpretation behaviour DO NOT USE THESE WITHOUT READING THE DOCS FOR THEM! */ #define PSFLAGSTRING 0x00000001 /* Interpret string */ #define PSFLAGFILE 0x00000002 /* Interpret file */ #define PSFLAGINTER 0x00000004 /* Interactive, issue prompts */ #define PSFLAGCLEAR 0x00000008 /* Clear stacks afterwards */ #define PSFLAGSAVE 0x00000010 /* Save and restore */ #define PSFLAGERASE 0x00000020 /* Erase page afterwards */ #define PSFLAGSTARTJOBSERVER 0x00000040 /* Save VM and init before run */ #define PSFLAGENDJOBSERVER 0x00000080 /* Do the final cleanup */ #define PSFLAGRUNSTDIN 0x00000100 /* use %stdin as currentfile */ /*------------------------------------------------------------------------*/ /* Flags for PSsignalint() */ /* Bit numbers */ #define PSINTSIGB_ABORT 0 #define PSINTSIGB_KILL 1 #define PSINTSIGB_VMRECLAIMLOCAL 2 /* Garbage collect local VM */ #define PSINTSIGB_VMRECLAIMALL 3 /* Garbage collect global VM */ #define PSINTSIGB_VMRECLAIM 4 /* Garbage collect via vmreclaim */ /* Masks to use */ #define PSINTSIGF_ABORT 0x00000001 #define PSINTSIGF_KILL 0x00000002 #define PSINTSIGF_VMRECLAIMLOCAL 0x00000004 #define PSINTSIGF_VMRECLAIMALL 0x00000008 #define PSINTSIGF_VMRECLAIM 0x00000010 /*------------------------------------------------------------------------*/ /* Entry points */ extern int PScreateact(struct PSparm *parm); extern void PSdeleteact(int arec); extern int PSintstring(int arec, char *string, int length, int flags); extern void PSsignalint(int arec, int flag); extern void PSsignalfpe(int arec); extern void PSerror(int arec, int errnum); extern void PSsetdevice(int arec, struct PSdevice *page); extern char *PSerrstr(int arec, int errnum); /*------------------------------------------------------------------------*/ #ifdef __SASC #pragma libcall PSbase PScreateact 1e 901 /* d0 = (a1)*/ #pragma libcall PSbase PSdeleteact 24 801 /* (a0)*/ #pragma libcall PSbase PSintstring 2A 109804 /* d0 = (a0, a1, d0, d1)*/ #pragma libcall PSbase PSsignalint 30 0802 /* (a0, d0)*/ #pragma libcall PSbase PSsignalfpe 36 801 /* (a0) */ #pragma libcall PSbase PSerror 3C 0802 /* (a0, d0)*/ #pragma libcall PSbase PSsetdevice 4E 9802 /* (a0, a1)*/ #pragma libcall PSbase PSerrstr 54 0802 /* d0 = (a0, d0)*/ #endif /* __SASC */ /*------------------------------------------------------------------------*/ #endif /* POSTLIB_H */