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backend: define z_alloca() and use for both Unix and Windows;

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replace double-slash comments with old-skool slash asterisk ones;
  define uint16_t etc for Windows ourselves and remove ms_stdint.h &
  stdint_msvc.h as no longer used;
  (backend (excepting test suite) now C89 compatible)
LICENSE: move from backend to root and move COPYING to frontend, with
  copies in frontend_qt & backend_qt, so in where it applies;
  add LICENSE section from manual to root README
This commit is contained in:
gitlost 2022-07-14 16:01:30 +01:00
parent 5ee3895bca
commit 930f458979
70 changed files with 2650 additions and 2038 deletions
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83
backend/pcx.c
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@ -1,9 +1,7 @@
/* pcx.c - Handles output to ZSoft PCX file */
/* ZSoft PCX File Format Technical Reference Manual http://bespin.org/~qz/pc-gpe/pcx.txt */
/*
libzint - the open source barcode library
Copyright (C) 2009 - 2021 Robin Stuart <rstuart114@gmail.com>
Copyright (C) 2009-2022 Robin Stuart <rstuart114@gmail.com>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
@ -30,39 +28,30 @@
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
*/
/* vim: set ts=4 sw=4 et : */
/* SPDX-License-Identifier: BSD-3-Clause */
#include <errno.h>
#include <stdio.h>
#include "common.h"
#include "pcx.h" /* PCX header structure */
#include <math.h>
#ifdef _MSC_VER
#include <io.h>
#include <fcntl.h>
#include <malloc.h>
#endif
/* ZSoft PCX File Format Technical Reference Manual http://bespin.org/~qz/pc-gpe/pcx.txt */
INTERNAL int pcx_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf) {
int fgred, fggrn, fgblu, bgred, bggrn, bgblu;
int row, column, i, colour;
int run_count;
FILE *pcx_file;
pcx_header_t header;
int bytes_per_line = symbol->bitmap_width + (symbol->bitmap_width & 1); // Must be even
int bytes_per_line = symbol->bitmap_width + (symbol->bitmap_width & 1); /* Must be even */
unsigned char previous;
const int output_to_stdout = symbol->output_options & BARCODE_STDOUT; /* Suppress gcc -fanalyzer warning */
#ifdef _MSC_VER
unsigned char *rle_row;
#endif
unsigned char *rle_row = (unsigned char *) z_alloca(bytes_per_line);
#ifndef _MSC_VER
unsigned char rle_row[bytes_per_line];
#else
rle_row = (unsigned char *) _alloca(bytes_per_line);
#endif /* _MSC_VER */
rle_row[bytes_per_line - 1] = 0; // Will remain zero if bitmap_width odd
rle_row[bytes_per_line - 1] = 0; /* Will remain zero if bitmap_width odd */
fgred = (16 * ctoi(symbol->fgcolour[0])) + ctoi(symbol->fgcolour[1]);
fggrn = (16 * ctoi(symbol->fgcolour[2])) + ctoi(symbol->fgcolour[3]);
@ -71,9 +60,9 @@ INTERNAL int pcx_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
bggrn = (16 * ctoi(symbol->bgcolour[2])) + ctoi(symbol->bgcolour[3]);
bgblu = (16 * ctoi(symbol->bgcolour[4])) + ctoi(symbol->bgcolour[5]);
header.manufacturer = 10; // ZSoft
header.version = 5; // Version 3.0
header.encoding = 1; // Run length encoding
header.manufacturer = 10; /* ZSoft */
header.version = 5; /* Version 3.0 */
header.encoding = 1; /* Run length encoding */
header.bits_per_pixel = 8;
header.window_xmin = 0;
header.window_ymin = 0;
@ -91,7 +80,7 @@ INTERNAL int pcx_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
header.bytes_per_line = bytes_per_line;
header.palette_info = 1; // Colour
header.palette_info = 1; /* Colour */
header.horiz_screen_size = 0;
header.vert_screen_size = 0;
@ -123,16 +112,16 @@ INTERNAL int pcx_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
switch (colour) {
case 0:
switch (pixelbuf[(row * symbol->bitmap_width) + column]) {
case 'W': // White
case 'M': // Magenta
case 'R': // Red
case 'Y': // Yellow
case 'W': /* White */
case 'M': /* Magenta */
case 'R': /* Red */
case 'Y': /* Yellow */
rle_row[column] = 255;
break;
case 'C': // Cyan
case 'B': // Blue
case 'G': // Green
case 'K': // Black
case 'C': /* Cyan */
case 'B': /* Blue */
case 'G': /* Green */
case 'K': /* Black */
rle_row[column] = 0;
break;
case '1':
@ -145,16 +134,16 @@ INTERNAL int pcx_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
break;
case 1:
switch (pixelbuf[(row * symbol->bitmap_width) + column]) {
case 'W': // White
case 'C': // Cyan
case 'Y': // Yellow
case 'G': // Green
case 'W': /* White */
case 'C': /* Cyan */
case 'Y': /* Yellow */
case 'G': /* Green */
rle_row[column] = 255;
break;
case 'B': // Blue
case 'M': // Magenta
case 'R': // Red
case 'K': // Black
case 'B': /* Blue */
case 'M': /* Magenta */
case 'R': /* Red */
case 'K': /* Black */
rle_row[column] = 0;
break;
case '1':
@ -167,16 +156,16 @@ INTERNAL int pcx_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
break;
case 2:
switch (pixelbuf[(row * symbol->bitmap_width) + column]) {
case 'W': // White
case 'C': // Cyan
case 'B': // Blue
case 'M': // Magenta
case 'W': /* White */
case 'C': /* Cyan */
case 'B': /* Blue */
case 'M': /* Magenta */
rle_row[column] = 255;
break;
case 'R': // Red
case 'Y': // Yellow
case 'G': // Green
case 'K': // Black
case 'R': /* Red */
case 'Y': /* Yellow */
case 'G': /* Green */
case 'K': /* Black */
rle_row[column] = 0;
break;
case '1':
@ -194,7 +183,7 @@ INTERNAL int pcx_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
* Copyright 1999-2020 ImageMagick Studio LLC */
previous = rle_row[0];
run_count = 1;
for (column = 1; column < bytes_per_line; column++) { // Note going up to bytes_per_line
for (column = 1; column < bytes_per_line; column++) { /* Note going up to bytes_per_line */
if ((previous == rle_row[column]) && (run_count < 63)) {
run_count++;
} else {
@ -224,3 +213,5 @@ INTERNAL int pcx_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
return 0;
}
/* vim: set ts=4 sw=4 et : */