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lprint.h
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//
// Header file for LPrint, a Label Printer Application
//
// Copyright © 2019-2023 by Michael R Sweet.
//
// Licensed under Apache License v2.0. See the file "LICENSE" for more
// information.
//
#ifndef LPRINT_H
# define LPRINT_H
# include "config.h"
# include <pappl/pappl.h>
# include <math.h>
//
// Debug macro...
//
# ifdef DEBUG
# define LPRINT_DEBUG(...) fprintf(stderr, __VA_ARGS__)
# else
# define LPRINT_DEBUG(...)
# endif // DEBUG
//
// Function annotations...
//
# if defined(__GNUC__) || defined(__has_extension)
# define LPRINT_FORMAT(a,b) __attribute__ ((__format__(__printf__, a,b)))
# define LPRINT_NONNULL(...) __attribute__ ((nonnull(__VA_ARGS__)))
# define LPRINT_NORETURN __attribute__ ((noreturn))
# else
# define LPRINT_FORMAT(a,b)
# define LPRINT_NONNULL(...)
# define LPRINT_NORETURN
# endif // __GNUC__ || __has_extension
//
// The CUPS API is changed in CUPS v3...
//
# if CUPS_VERSION_MAJOR < 3
# define CUPS_ENCODING_ISO8859_1 CUPS_ISO8859_1
# define CUPS_ENCODING_JIS_X0213 CUPS_JIS_X0213
# define cups_len_t int
# define cups_page_header_t cups_page_header2_t
# define cupsArrayNew cupsArrayNew3
# define cupsLangGetName(lang) lang->language
# define cupsRasterReadHeader cupsRasterReadHeader2
# define cupsRasterWriteHeader cupsRasterWriteHeader2
# define httpConnect httpConnect2
# define httpGetDateString httpGetDateString2
# define httpRead httpRead2
# define httpReconnect httpReconnect2
# define httpStatusString httpStatus
# define httpWrite httpWrite2
# define httpWriteResponse(http,code) (httpWriteResponse(http,code) == 0)
# define IPP_NUM_CAST (int)
# if CUPS_VERSION_MINOR < 3
# define HTTP_STATUS_FOUND (http_status_t)302
# endif // CUPS_VERSION_MINOR < 3
# if CUPS_VERSION_MINOR < 5
# define cupsArrayGetCount cupsArrayCount
# define cupsArrayGetElement(a,n) cupsArrayIndex(a,(int)n)
# define cupsArrayGetFirst cupsArrayFirst
# define cupsArrayGetLast cupsArrayLast
# define cupsArrayGetNext cupsArrayNext
# define cupsArrayGetPrev cupsArrayPrev
# define cupsCreateTempFd(prefix,suffix,buffer,bufsize) cupsTempFd(buffer,bufsize)
# define cupsGetUser cupsUser
# define httpAddrConnect httpAddrConnect2
# define httpAddrGetFamily httpAddrFamily
# define httpAddrGetLength httpAddrLength
# define httpAddrGetString httpAddrString
# define httpAddrIsLocalhost httpAddrLocalhost
# define httpDecode64(out,outlen,in,end) httpDecode64_2(out,outlen,in)
# define httpEncode64(out,outlen,in,inlen,url) httpEncode64_2(out,outlen,in,inlen)
# define httpSetEncryption(http,e) (httpEncryption(http,e)>=0)
# define ippGetFirstAttribute ippFirstAttribute
# define ippGetNextAttribute ippNextAttribute
typedef cups_array_func_t cups_array_cb_t;
typedef cups_acopy_func_t cups_acopy_cb_t;
typedef cups_afree_func_t cups_afree_cb_t;
typedef cups_raster_iocb_t cups_raster_cb_t;
typedef ipp_copycb_t ipp_copy_cb_t;
# else
# define httpDecode64 httpDecode64_3
# define httpEncode64 httpEncode64_3
# endif // CUPS_VERSION_MINOR < 5
# else
# define cups_len_t size_t
# define cups_utf8_t char
# define IPP_NUM_CAST (size_t)
# endif // CUPS_VERSION_MAJOR < 3
//
// Constants...
//
# define LPRINT_TESTPAGE_MIMETYPE "application/vnd.lprint-test"
# define LPRINT_TESTPAGE_HEADER "T*E*S*T*P*A*G*E*"
# ifdef LPRINT_EXPERIMENTAL
# define LPRINT_BROTHER_PT_CBP_MIMETYPE "application/vnd.brother-pt-cbp"
# define LPRINT_CPCL_MIMETYPE "application/vnd.zebra-cpcl"
# endif // LPRINT_EXPERIMENTAL
# define LPRINT_EPL2_MIMETYPE "application/vnd.eltron-epl"
# define LPRINT_SLP_MIMETYPE "application/vnd.sii-slp"
# define LPRINT_TSPL_MIMETYPE "application/vnd.tsc-tspl"
# define LPRINT_ZPL_MIMETYPE "application/vnd.zebra-zpl"
//
// Types...
//
typedef struct lprint_dither_s // Dithering state
{
pappl_dither_t dither; // Dither matrix to use
unsigned char *input[4]; // Input lines for dithering (only 3 are needed, 4 makes it easier for ring buffer)
unsigned in_width, // Width in pixels
in_height, // Height in lines
in_left, // Left (starting) pixel
in_top, // Top-most pixel
in_bottom; // Bottom-most pixel
unsigned char in_bpp, // Input bits per pixel (1 or 8)
in_white; // Input white pixel value (0 or 255)
unsigned char *output, // Output bitmap
out_white; // Output white pixel value (0 or 255)
unsigned out_width; // Output width in bytes
} lprint_dither_t;
typedef struct lprint_cmedia_s // Custom label sizes (per-printer/source)
{
char custom_name[PAPPL_MAX_SOURCE][128];
// Custom media size names
} lprint_cmedia_t;
//
// Functions...
//
extern bool lprintDitherAlloc(lprint_dither_t *dither, pappl_job_t *job, pappl_pr_options_t *options, cups_cspace_t out_cspace, double out_gamma);
extern void lprintDitherFree(lprint_dither_t *dither);
extern bool lprintDitherLine(lprint_dither_t *dither, unsigned y, const unsigned char *line);
extern bool lprintMediaLoad(pappl_printer_t *printer, pappl_pr_driver_data_t *data);
extern const char *lprintMediaMatch(pappl_printer_t *printer, int source, int width, int length);
extern bool lprintMediaSave(pappl_printer_t *printer, pappl_pr_driver_data_t *data);
extern bool lprintMediaUI(pappl_client_t *client, pappl_printer_t *printer);
extern void lprintMediaUpdate(pappl_printer_t *printer, pappl_pr_driver_data_t *data);
extern unsigned char *lprintPackBitsAlloc(size_t len);
extern size_t lprintPackBitsCompress(unsigned char *dst, const unsigned char *src, size_t len);
# ifdef LPRINT_EXPERIMENTAL
extern bool lprintBrother(pappl_system_t *system, const char *driver_name, const char *device_uri, const char *device_id, pappl_pr_driver_data_t *data, ipp_t **attrs, void *cbdata);
extern bool lprintCPCL(pappl_system_t *system, const char *driver_name, const char *device_uri, const char *device_id, pappl_pr_driver_data_t *driver_data, ipp_t **driver_attrs, void *cbdata);
# endif // LPRINT_EXPERIMENTAL
extern bool lprintDYMO(pappl_system_t *system, const char *driver_name, const char *device_uri, const char *device_id, pappl_pr_driver_data_t *data, ipp_t **attrs, void *cbdata);
extern bool lprintEPL2(pappl_system_t *system, const char *driver_name, const char *device_uri, const char *device_id, pappl_pr_driver_data_t *data, ipp_t **attrs, void *cbdata);
extern bool lprintSII(pappl_system_t *system, const char *driver_name, const char *device_uri, const char *device_id, pappl_pr_driver_data_t *data, ipp_t **attrs, void *cbdata);
extern bool lprintTestFilterCB(pappl_job_t *job, pappl_device_t *device, void *data);
extern const char *lprintTestPageCB(pappl_printer_t *printer, char *buffer, size_t bufsize);
extern bool lprintTSPL(pappl_system_t *system, const char *driver_name, const char *device_uri, const char *device_id, pappl_pr_driver_data_t *data, ipp_t **attrs, void *cbdata);
extern bool lprintZPL(pappl_system_t *system, const char *driver_name, const char *device_uri, const char *device_id, pappl_pr_driver_data_t *data, ipp_t **attrs, void *cbdata);
extern void lprintZPLQueryDriver(pappl_system_t *system, const char *device_uri, char *name, size_t namesize);
#endif // !LPRINT_H