Separate PNG and BMP file handling routines and create common framework to allow addition of more output file formats

This commit is contained in:
Robin Stuart 2016-07-19 23:02:39 +01:00
parent 6dcc6af817
commit 08e51cf5bb
8 changed files with 1105 additions and 1268 deletions

240
Makefile
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@ -1,240 +0,0 @@
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@ -4,11 +4,12 @@ project(zint)
find_package(PNG)
set(zint_COMMON_SRCS common.c library.c render.c ps.c large.c reedsol.c gs1.c svg.c png.c)
set(zint_COMMON_SRCS common.c library.c render.c large.c reedsol.c gs1.c)
set(zint_ONEDIM_SRCS code.c code128.c 2of5.c upcean.c telepen.c medical.c plessey.c rss.c)
set(zint_POSTAL_SRCS postal.c auspost.c imail.c)
set(zint_TWODIM_SRCS code16k.c dmatrix.c pdf417.c qr.c maxicode.c composite.c aztec.c code49.c code1.c gridmtx.c hanxin.c)
set(zint_SRCS ${zint_COMMON_SRCS} ${zint_ONEDIM_SRCS} ${zint_POSTAL_SRCS} ${zint_TWODIM_SRCS} )
set(zint_OUTPUT_SRCS render.c ps.c svg.c bmp.c png.c raster.c)
set(zint_SRCS ${zint_OUTPUT_SRCS} ${zint_COMMON_SRCS} ${zint_ONEDIM_SRCS} ${zint_POSTAL_SRCS} ${zint_TWODIM_SRCS})
if(PNG_FOUND)
include_directories( ${PNG_INCLUDES} )

237
backend/bmp.c Normal file
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@ -0,0 +1,237 @@
/* bmp.c - Handles output to PNG file */
/*
libzint - the open source barcode library
Copyright (C) 2009-2016 Robin Stuart <rstuart114@gmail.com>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the project nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "common.h"
#include "bmp.h" /* Bitmap header structure */
#include <math.h>
#define SSET "0123456789ABCDEF"
int bmp_pixel_plot(struct zint_symbol *symbol, int image_height, int image_width, char *pixelbuf, int rotate_angle) {
int i, row, column, errno;
int fgred, fggrn, fgblu, bgred, bggrn, bgblu;
int row_size;
unsigned int data_size;
unsigned char *bitmap_file_start, *bmp_posn;
FILE *bmp_file;
switch (rotate_angle) {
case 0:
case 180:
symbol->bitmap_width = image_width;
symbol->bitmap_height = image_height;
break;
case 90:
case 270:
symbol->bitmap_width = image_height;
symbol->bitmap_height = image_width;
break;
}
if (symbol->bitmap != NULL)
free(symbol->bitmap);
row_size = 4 * floor((24 * symbol->bitmap_width + 31) / 32);
symbol->bitmap = (char *) malloc(row_size * symbol->bitmap_height);
/* sort out colour options */
to_upper((unsigned char*) symbol->fgcolour);
to_upper((unsigned char*) symbol->bgcolour);
if (strlen(symbol->fgcolour) != 6) {
strcpy(symbol->errtxt, "Malformed foreground colour target");
return ZINT_ERROR_INVALID_OPTION;
}
if (strlen(symbol->bgcolour) != 6) {
strcpy(symbol->errtxt, "Malformed background colour target");
return ZINT_ERROR_INVALID_OPTION;
}
errno = is_sane(SSET, (unsigned char*) symbol->fgcolour, strlen(symbol->fgcolour));
if (errno == ZINT_ERROR_INVALID_DATA) {
strcpy(symbol->errtxt, "Malformed foreground colour target");
return ZINT_ERROR_INVALID_OPTION;
}
errno = is_sane(SSET, (unsigned char*) symbol->bgcolour, strlen(symbol->fgcolour));
if (errno == ZINT_ERROR_INVALID_DATA) {
strcpy(symbol->errtxt, "Malformed background colour target");
return ZINT_ERROR_INVALID_OPTION;
}
fgred = (16 * ctoi(symbol->fgcolour[0])) + ctoi(symbol->fgcolour[1]);
fggrn = (16 * ctoi(symbol->fgcolour[2])) + ctoi(symbol->fgcolour[3]);
fgblu = (16 * ctoi(symbol->fgcolour[4])) + ctoi(symbol->fgcolour[5]);
bgred = (16 * ctoi(symbol->bgcolour[0])) + ctoi(symbol->bgcolour[1]);
bggrn = (16 * ctoi(symbol->bgcolour[2])) + ctoi(symbol->bgcolour[3]);
bgblu = (16 * ctoi(symbol->bgcolour[4])) + ctoi(symbol->bgcolour[5]);
/* Pixel Plotting */
i = 0;
switch (rotate_angle) {
case 0: /* Plot the right way up */
for (row = 0; row < image_height; row++) {
for (column = 0; column < image_width; column++) {
i = (3 * column) + (row * row_size);
switch (*(pixelbuf + (image_width * (image_height - row - 1)) + column)) {
case '1':
symbol->bitmap[i] = fgblu;
symbol->bitmap[i + 1] = fggrn;
symbol->bitmap[i + 2] = fgred;
break;
default:
symbol->bitmap[i] = bgblu;
symbol->bitmap[i + 1] = bggrn;
symbol->bitmap[i + 2] = bgred;
break;
}
}
}
break;
case 90: /* Plot 90 degrees clockwise */
for (row = 0; row < image_width; row++) {
for (column = 0; column < image_height; column++) {
i = (3 * column) + (row * row_size);
switch (*(pixelbuf + (image_width * (image_height - column - 1)) + (image_width - row - 1))) {
case '1':
symbol->bitmap[i] = fgblu;
symbol->bitmap[i + 1] = fggrn;
symbol->bitmap[i + 2] = fgred;
break;
default:
symbol->bitmap[i] = bgblu;
symbol->bitmap[i + 1] = bggrn;
symbol->bitmap[i + 2] = bgred;
break;
}
}
}
break;
case 180: /* Plot upside down */
for (row = 0; row < image_height; row++) {
for (column = 0; column < image_width; column++) {
i = (3 * column) + (row * row_size);
switch (*(pixelbuf + (image_width * row) + (image_width - column - 1))) {
case '1':
symbol->bitmap[i] = fgblu;
symbol->bitmap[i + 1] = fggrn;
symbol->bitmap[i + 2] = fgred;
break;
default:
symbol->bitmap[i] = bgblu;
symbol->bitmap[i + 1] = bggrn;
symbol->bitmap[i + 2] = bgred;
break;
}
}
}
break;
case 270: /* Plot 90 degrees anti-clockwise */
for (row = 0; row < image_width; row++) {
for (column = 0; column < image_height; column++) {
i = (3 * column) + (row * row_size);
switch (*(pixelbuf + (image_width * column) + row)) {
case '1':
symbol->bitmap[i] = fgblu;
symbol->bitmap[i + 1] = fggrn;
symbol->bitmap[i + 2] = fgred;
break;
default:
symbol->bitmap[i] = bgblu;
symbol->bitmap[i + 1] = bggrn;
symbol->bitmap[i + 2] = bgred;
break;
}
}
}
break;
}
data_size = symbol->bitmap_height * row_size;
symbol->bitmap_byte_length = data_size;
bitmap_file_header_t file_header;
bitmap_info_header_t info_header;
file_header.header_field = 0x4d42; // "BM"
file_header.file_size = sizeof(bitmap_file_header_t) + sizeof(bitmap_info_header_t) + data_size;
file_header.reserved = 0;
file_header.data_offset = sizeof(bitmap_file_header_t) + sizeof(bitmap_info_header_t);
info_header.header_size = sizeof(bitmap_info_header_t);
info_header.width = symbol->bitmap_width;
info_header.height = symbol->bitmap_height;
info_header.colour_planes = 1;
info_header.bits_per_pixel = 24;
info_header.compression_method = 0; // BI_RGB
info_header.image_size = 0;
info_header.horiz_res = 0;
info_header.vert_res = 0;
info_header.colours = 0;
info_header.important_colours = 0;
bitmap_file_start = (unsigned char*)malloc(file_header.file_size);
memset(bitmap_file_start, 0xff, file_header.file_size);
bmp_posn = bitmap_file_start;
memcpy( bitmap_file_start, &file_header, sizeof(bitmap_file_header_t));
bmp_posn += sizeof(bitmap_file_header_t);
memcpy(bmp_posn, &info_header, sizeof(bitmap_info_header_t) );
bmp_posn += sizeof(bitmap_info_header_t);
memcpy(bmp_posn, symbol->bitmap, data_size);
/* Open output file in binary mode */
if ((symbol->output_options & BARCODE_STDOUT) != 0) {
#ifdef _MSC_VER
if (-1 == _setmode(_fileno(stdout), _O_BINARY)) {
strcpy(symbol->errtxt, "Can't open output file");
return ZINT_ERROR_FILE_ACCESS;
}
#endif
bmp_file = stdout;
} else {
if (!(bmp_file = fopen(symbol->outfile, "wb"))) {
strcpy(symbol->errtxt, "Can't open output file");
return ZINT_ERROR_FILE_ACCESS;
}
}
fwrite(bitmap_file_start, file_header.file_size, 1, bmp_file);
fclose(bmp_file);
return 0;
}

View File

@ -183,15 +183,10 @@ extern int code_one(struct zint_symbol *symbol, unsigned char source[], int leng
extern int grid_matrix(struct zint_symbol *symbol, const unsigned char source[], int length); /* Grid Matrix */
extern int han_xin(struct zint_symbol * symbol, const unsigned char source[], int length); /* Han Xin */
#ifndef NO_PNG
extern int png_handle(struct zint_symbol *symbol, int rotate_angle);
#endif
extern int render_plot(struct zint_symbol *symbol, float width, float height);
extern int bmp_handle(struct zint_symbol *symbol, int rotate_angle);
extern int ps_plot(struct zint_symbol *symbol);
extern int svg_plot(struct zint_symbol *symbol);
extern int plot_raster(struct zint_symbol *symbol, int rotate_angle, int file_type); /* Plot to PNG or BMP */
extern int render_plot(struct zint_symbol *symbol, float width, float height); /* Plot to gLabels */
extern int ps_plot(struct zint_symbol *symbol); /* Plot to EPS */
extern int svg_plot(struct zint_symbol *symbol); /* Plot to SVG */
void error_tag(char error_string[], int error_number) {
char error_buffer[100];
@ -943,14 +938,18 @@ int ZBarcode_Print(struct zint_symbol *symbol, int rotate_angle) {
output[3] = '\0';
to_upper((unsigned char*) output);
#ifndef NO_PNG
if (!(strcmp(output, "PNG"))) {
if (symbol->scale < 1.0) {
symbol->text[0] = '\0';
}
error_number = png_handle(symbol, rotate_angle);
error_number = plot_raster(symbol, rotate_angle, OUT_PNG_FILE);
} else
if (!(strcmp(output, "BMP"))) {
if (symbol->scale < 1.0) {
symbol->text[0] = '\0';
}
error_number = plot_raster(symbol, rotate_angle, OUT_BMP_FILE);
} else
#endif
if (!(strcmp(output, "TXT"))) {
error_number = dump_plot(symbol);
} else
@ -988,7 +987,7 @@ int ZBarcode_Buffer(struct zint_symbol *symbol, int rotate_angle) {
return ZINT_ERROR_INVALID_OPTION;
}
error_number = bmp_handle(symbol, rotate_angle);
error_number = plot_raster(symbol, rotate_angle, OUT_BMP_FILE);
error_tag(symbol->errtxt, error_number);
return error_number;
}

File diff suppressed because it is too large Load Diff

841
backend/raster.c Normal file
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@ -0,0 +1,841 @@
/* raster.c - Handles output to raster files */
/*
libzint - the open source barcode library
Copyright (C) 2009-2016 Robin Stuart <rstuart114@gmail.com>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the project nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
*/
#include <stdio.h>
#ifdef _MSC_VER
#include <fcntl.h>
#include <io.h>
#endif
#include <stdlib.h>
#include <string.h>
#include "common.h"
#ifdef _MSC_VER
#include <malloc.h>
#endif /* _MSC_VER */
#include "maxihex.h" /* Maxicode shapes */
#include "font.h" /* Font for human readable text */
#ifndef NO_PNG
extern int png_pixel_plot(struct zint_symbol *symbol, int image_height, int image_width, char *pixelbuf, int rotate_angle);
#endif /* NO_PNG */
extern int bmp_pixel_plot(struct zint_symbol *symbol, int image_height, int image_width, char *pixelbuf, int rotate_angle);
int save_raster_image_to_file(struct zint_symbol *symbol, int image_height, int image_width, char *pixelbuf, int rotate_angle, int image_type) {
int error_number;
float scaler = symbol->scale;
char *scaled_pixelbuf;
int horiz, vert, i;
int scale_width, scale_height;
if (scaler == 0) {
scaler = 0.5;
}
scale_width = image_width * scaler;
scale_height = image_height * scaler;
/* Apply scale options by creating another pixel buffer */
if (!(scaled_pixelbuf = (char *) malloc(scale_width * scale_height))) {
printf("Insufficient memory for pixel buffer");
return ZINT_ERROR_ENCODING_PROBLEM;
} else {
for (i = 0; i < (scale_width * scale_height); i++) {
*(scaled_pixelbuf + i) = '0';
}
}
for (vert = 0; vert < scale_height; vert++) {
for (horiz = 0; horiz < scale_width; horiz++) {
*(scaled_pixelbuf + (vert * scale_width) + horiz) = *(pixelbuf + ((int) (vert / scaler) * image_width) + (int) (horiz / scaler));
}
}
if (image_type == OUT_PNG_FILE) {
#ifndef NO_PNG
error_number = png_pixel_plot(symbol, scale_height, scale_width, scaled_pixelbuf, rotate_angle);
#else
return ZINT_ERROR_INVALID_OPTION;
#endif
} else {
error_number = bmp_pixel_plot(symbol, scale_height, scale_width, scaled_pixelbuf, rotate_angle);
}
free(scaled_pixelbuf);
return error_number;
}
void draw_bar(char *pixelbuf, int xpos, int xlen, int ypos, int ylen, int image_width, int image_height) {
/* Draw a rectangle */
int i, j, png_ypos;
png_ypos = image_height - ypos - ylen;
/* This fudge is needed because EPS measures height from the bottom up but
PNG measures y position from the top down */
for (i = (xpos); i < (xpos + xlen); i++) {
for (j = (png_ypos); j < (png_ypos + ylen); j++) {
*(pixelbuf + (image_width * j) + i) = '1';
}
}
}
int bullseye_pixel(int row, int col) {
int block_val, block_pos, return_val;
block_val = bullseye_compressed[(row * 12) + (col / 8)];
return_val = 0;
block_pos = col % 8;
if (block_val & (0x80 >> block_pos)) {
return_val = 1;
}
return return_val;
}
void draw_bullseye(char *pixelbuf, int image_width, int xoffset, int yoffset) {
/* Central bullseye in Maxicode symbols */
int i, j;
for (j = 103; j < 196; j++) {
for (i = 0; i < 93; i++) {
if (bullseye_pixel(j - 103, i)) {
/* if(bullseye[(((j - 103) * 93) + i)] == 1) { */
*(pixelbuf + (image_width * j) + (image_width * yoffset) + i + 99 + xoffset) = '1';
}
}
}
}
void draw_hexagon(char *pixelbuf, int image_width, int xposn, int yposn) {
/* Put a hexagon into the pixel buffer */
int i, j;
for (i = 0; i < 12; i++) {
for (j = 0; j < 10; j++) {
if (hexagon[(i * 10) + j] == 1) {
*(pixelbuf + (image_width * i) + (image_width * yposn) + xposn + j) = '1';
}
}
}
}
void draw_letter(char *pixelbuf, unsigned char letter, int xposn, int yposn, int textflags, int image_width, int image_height) {
/* Put a letter into a position */
int skip, x, y, glyph_no, max_x, max_y;
skip = 0;
if (letter < 33) {
skip = 1;
}
if ((letter > 127) && (letter < 161)) {
skip = 1;
}
if (xposn < 0 || yposn < 0) {
skip = 1;
}
if (skip == 0) {
if (letter > 128) {
glyph_no = letter - 66;
} else {
glyph_no = letter - 33;
}
switch (textflags) {
case 1: // small font 5x9
max_x = 5;
max_y = 9;
if (xposn + max_x >= image_width) {
max_x = image_width - xposn - 1;
}
if (yposn + max_y >= image_height) {
max_y = image_height - yposn - 1;
}
for (y = 0; y < max_y; y++) {
for (x = 0; x < max_x; x++) {
if (small_font[(glyph_no * 9) + y] & (0x10 >> x)) {
*(pixelbuf + (y * image_width) + (yposn * image_width) + xposn + x) = '1';
}
}
}
break;
case 2: // bold font -> twice the regular font
{
char * linePtr;
max_x = 7;
max_y = 14;
if (xposn + max_x + 1 >= image_width) {
max_x = image_width - xposn - 2;
}
if (yposn + max_y >= image_height) {
max_y = image_height - yposn - 1;
}
linePtr = pixelbuf + (yposn * image_width) + xposn + 1;
for (y = 0; y < max_y; y++) {
char * pixelPtr = linePtr;
int extra_dot = 0;
for (x = 0; x < 7; x++) {
if (ascii_font[(glyph_no * 14) + y] & (0x40 >> x)) {
*pixelPtr = '1';
extra_dot = 1;
} else {
if (extra_dot) {
*pixelPtr = '1';
}
extra_dot = 0;
}
++pixelPtr;
}
if (extra_dot) {
*pixelPtr = '1';
}
linePtr += image_width;
}
}
break;
default: // regular font 7x15
max_x = 7;
max_y = 14;
if (xposn + max_x >= image_width) {
max_x = image_width - xposn - 1;
}
if (yposn + max_y >= image_height) {
max_y = image_height - yposn - 1;
}
for (y = 0; y < max_y; y++) {
for (x = 0; x < 7; x++) {
if (ascii_font[(glyph_no * 14) + y] & (0x40 >> x)) {
*(pixelbuf + (y * image_width) + (yposn * image_width) + xposn + x) = '1';
}
}
}
break;
}
}
}
/* Plot a string into the pixel buffer */
void draw_string(char *pixbuf, char input_string[], int xposn, int yposn, int textflags, int image_width, int image_height) {
int i, string_length, string_left_hand, letter_width = 7;
switch (textflags) {
case 1: // small font 5x9
letter_width = 5;
break;
case 2: // bold font -> width of the regular font + 1 extra dot + 1 extra space
letter_width = 9;
break;
default: // regular font 7x15
letter_width = 7;
break;
}
string_length = strlen(input_string);
string_left_hand = xposn - ((letter_width * string_length) / 2);
for (i = 0; i < string_length; i++) {
draw_letter(pixbuf, input_string[i], string_left_hand + (i * letter_width), yposn, textflags, image_width, image_height);
}
}
int plot_raster_maxicode(struct zint_symbol *symbol, int rotate_angle, int data_type) {
int i, row, column, xposn, yposn;
int image_height, image_width;
char *pixelbuf;
int error_number;
int xoffset, yoffset;
xoffset = symbol->border_width + symbol->whitespace_width;
yoffset = symbol->border_width;
image_width = 300 + (2 * xoffset * 2);
image_height = 300 + (2 * yoffset * 2);
if (!(pixelbuf = (char *) malloc(image_width * image_height))) {
printf("Insifficient memory for pixel buffer");
return ZINT_ERROR_ENCODING_PROBLEM;
} else {
for (i = 0; i < (image_width * image_height); i++) {
*(pixelbuf + i) = '0';
}
}
draw_bullseye(pixelbuf, image_width, (2 * xoffset), (2 * yoffset));
for (row = 0; row < symbol->rows; row++) {
yposn = row * 9;
for (column = 0; column < symbol->width; column++) {
xposn = column * 10;
if (module_is_set(symbol, row, column)) {
if (row & 1) {
/* Odd (reduced) row */
xposn += 5;
draw_hexagon(pixelbuf, image_width, xposn + (2 * xoffset), yposn + (2 * yoffset));
} else {
/* Even (full) row */
draw_hexagon(pixelbuf, image_width, xposn + (2 * xoffset), yposn + (2 * yoffset));
}
}
}
}
if (((symbol->output_options & BARCODE_BOX) != 0) || ((symbol->output_options & BARCODE_BIND) != 0)) {
/* boundary bars */
draw_bar(pixelbuf, 0, image_width, 0, symbol->border_width * 2, image_width, image_height);
draw_bar(pixelbuf, 0, image_width, 300 + (symbol->border_width * 2), symbol->border_width * 2, image_width, image_height);
}
if ((symbol->output_options & BARCODE_BOX) != 0) {
/* side bars */
draw_bar(pixelbuf, 0, symbol->border_width * 2, 0, image_height, image_width, image_height);
draw_bar(pixelbuf, 300 + ((symbol->border_width + symbol->whitespace_width + symbol->whitespace_width) * 2), symbol->border_width * 2, 0, image_height, image_width, image_height);
}
error_number = save_raster_image_to_file(symbol, image_height, image_width, pixelbuf, rotate_angle, data_type);
free(pixelbuf);
return error_number;
}
/* Convert UTF-8 to Latin1 Codepage for the interpretation line */
void to_latin1(unsigned char source[], unsigned char preprocessed[]) {
int j, i, input_length;
input_length = ustrlen(source);
j = 0;
i = 0;
while (i < input_length) {
switch (source[i]) {
case 0xC2:
/* UTF-8 C2xxh */
/* Character range: C280h (latin: 80h) to C2BFh (latin: BFh) */
i++;
preprocessed[j] = source[i];
j++;
break;
case 0xC3:
/* UTF-8 C3xx */
/* Character range: C380h (latin: C0h) to C3BFh (latin: FFh) */
i++;
preprocessed[j] = source[i] + 64;
j++;
break;
default:
/* Process ASCII (< 80h), all other unicode points are ignored */
if (source[i] < 128) {
preprocessed[j] = source[i];
j++;
}
break;
}
i++;
}
preprocessed[j] = '\0';
return;
}
int plot_raster_default(struct zint_symbol *symbol, int rotate_angle, int data_type) {
int textdone, main_width, comp_offset, large_bar_count;
char textpart[10], addon[6];
float addon_text_posn, preset_height, large_bar_height;
int i, r, textoffset, yoffset, xoffset, latch, image_width, image_height;
char *pixelbuf;
int addon_latch = 0, textflags = 0;
int this_row, block_width, plot_height, plot_yposn, textpos;
float row_height, row_posn;
int error_number;
int default_text_posn;
int next_yposn;
#ifndef _MSC_VER
unsigned char local_text[ustrlen(symbol->text) + 1];
#else
unsigned char* local_text = (unsigned char*) _alloca(ustrlen(symbol->text) + 1);
#endif
if (symbol->show_hrt != 0) {
/* Copy text from symbol */
to_latin1(symbol->text, local_text);
} else {
/* No text needed */
switch (symbol->symbology) {
case BARCODE_EANX:
case BARCODE_EANX_CC:
case BARCODE_ISBNX:
case BARCODE_UPCA:
case BARCODE_UPCE:
case BARCODE_UPCA_CC:
case BARCODE_UPCE_CC:
/* For these symbols use dummy text to ensure formatting is done
* properly even if no text is required */
for (i = 0; i < ustrlen(symbol->text); i++) {
if (symbol->text[i] == '+') {
local_text[i] = '+';
} else {
local_text[i] = ' ';
}
local_text[ustrlen(symbol->text)] = '\0';
}
break;
default:
/* For everything else, just remove the text */
local_text[0] = '\0';
break;
}
}
textdone = 0;
main_width = symbol->width;
strcpy(addon, "");
comp_offset = 0;
addon_text_posn = 0.0;
row_height = 0;
if (symbol->output_options & SMALL_TEXT) {
textflags = 1;
}
else if (symbol->output_options & BOLD_TEXT) {
textflags = 2;
}
if (symbol->height == 0) {
symbol->height = 50;
}
large_bar_count = 0;
preset_height = 0.0;
for (i = 0; i < symbol->rows; i++) {
preset_height += symbol->row_height[i];
if (symbol->row_height[i] == 0) {
large_bar_count++;
}
}
if (large_bar_count == 0) {
symbol->height = preset_height;
large_bar_height = 10;
} else {
large_bar_height = (symbol->height - preset_height) / large_bar_count;
}
while (!(module_is_set(symbol, symbol->rows - 1, comp_offset))) {
comp_offset++;
}
/* Certain symbols need whitespace otherwise characters get chopped off the sides */
if ((((symbol->symbology == BARCODE_EANX) && (symbol->rows == 1)) || (symbol->symbology == BARCODE_EANX_CC))
|| (symbol->symbology == BARCODE_ISBNX)) {
switch (ustrlen(local_text)) {
case 13: /* EAN 13 */
case 16:
case 19:
if (symbol->whitespace_width == 0) {
symbol->whitespace_width = 10;
}
main_width = 96 + comp_offset;
break;
default:
main_width = 68 + comp_offset;
}
}
if (((symbol->symbology == BARCODE_UPCA) && (symbol->rows == 1)) || (symbol->symbology == BARCODE_UPCA_CC)) {
if (symbol->whitespace_width == 0) {
symbol->whitespace_width = 10;
main_width = 96 + comp_offset;
}
}
if (((symbol->symbology == BARCODE_UPCE) && (symbol->rows == 1)) || (symbol->symbology == BARCODE_UPCE_CC)) {
if (symbol->whitespace_width == 0) {
symbol->whitespace_width = 10;
main_width = 51 + comp_offset;
}
}
latch = 0;
r = 0;
/* Isolate add-on text */
if (is_extendable(symbol->symbology)) {
for (i = 0; i < ustrlen(local_text); i++) {
if (latch == 1) {
addon[r] = local_text[i];
r++;
}
if (symbol->text[i] == '+') {
latch = 1;
}
}
}
addon[r] = '\0';
if (ustrlen(local_text) != 0) {
textoffset = 9;
} else {
textoffset = 0;
}
xoffset = symbol->border_width + symbol->whitespace_width;
yoffset = symbol->border_width;
image_width = 2 * (symbol->width + xoffset + xoffset);
image_height = 2 * (symbol->height + textoffset + yoffset + yoffset);
if (!(pixelbuf = (char *) malloc(image_width * image_height))) {
printf("Insufficient memory for pixel buffer");
return ZINT_ERROR_ENCODING_PROBLEM;
} else {
for (i = 0; i < (image_width * image_height); i++) {
*(pixelbuf + i) = '0';
}
}
if (((symbol->output_options & BARCODE_BOX) != 0) || ((symbol->output_options & BARCODE_BIND) != 0)) {
default_text_posn = image_height - 17;
} else {
default_text_posn = image_height - 17 - symbol->border_width - symbol->border_width;
}
row_posn = textoffset + yoffset;
next_yposn = textoffset + yoffset;
row_height = 0;
/* Plot the body of the symbol to the pixel buffer */
for (r = 0; r < symbol->rows; r++) {
this_row = symbol->rows - r - 1; /* invert r otherwise plots upside down */
row_posn += row_height;
plot_yposn = next_yposn;
if (symbol->row_height[this_row] == 0) {
row_height = large_bar_height;
} else {
row_height = symbol->row_height[this_row];
}
next_yposn = (int) (row_posn + row_height);
plot_height = next_yposn - plot_yposn;
i = 0;
if (module_is_set(symbol, this_row, 0)) {
latch = 1;
} else {
latch = 0;
}
do {
block_width = 0;
do {
block_width++;
} while (module_is_set(symbol, this_row, i + block_width) == module_is_set(symbol, this_row, i));
if ((addon_latch == 0) && (r == 0) && (i > main_width)) {
plot_height = (int) (row_height - 5.0);
plot_yposn = (int) (row_posn - 5.0);
addon_text_posn = row_posn + row_height - 8.0;
addon_latch = 1;
}
if (latch == 1) {
/* a bar */
draw_bar(pixelbuf, (i + xoffset) * 2, block_width * 2, plot_yposn * 2, plot_height * 2, image_width, image_height);
latch = 0;
} else {
/* a space */
latch = 1;
}
i += block_width;
} while (i < symbol->width);
}
xoffset += comp_offset;
if ((((symbol->symbology == BARCODE_EANX) && (symbol->rows == 1)) || (symbol->symbology == BARCODE_EANX_CC)) || (symbol->symbology == BARCODE_ISBNX)) {
/* guard bar extensions and text formatting for EAN8 and EAN13 */
switch (ustrlen(local_text)) {
case 8: /* EAN-8 */
case 11:
case 14:
draw_bar(pixelbuf, (0 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
draw_bar(pixelbuf, (2 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
draw_bar(pixelbuf, (32 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
draw_bar(pixelbuf, (34 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
draw_bar(pixelbuf, (64 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
draw_bar(pixelbuf, (66 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
for (i = 0; i < 4; i++) {
textpart[i] = local_text[i];
}
textpart[4] = '\0';
textpos = 2 * (17 + xoffset);
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
for (i = 0; i < 4; i++) {
textpart[i] = local_text[i + 4];
}
textpart[4] = '\0';
textpos = 2 * (50 + xoffset);
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
textdone = 1;
switch (strlen(addon)) {
case 2:
textpos = 2 * (xoffset + 86);
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, textflags, image_width, image_height);
break;
case 5:
textpos = 2 * (xoffset + 100);
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, textflags, image_width, image_height);
break;
}
break;
case 13: /* EAN 13 */
case 16:
case 19:
draw_bar(pixelbuf, (0 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
draw_bar(pixelbuf, (2 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
draw_bar(pixelbuf, (46 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
draw_bar(pixelbuf, (48 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
draw_bar(pixelbuf, (92 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
draw_bar(pixelbuf, (94 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
textpart[0] = local_text[0];
textpart[1] = '\0';
textpos = 2 * (-7 + xoffset);
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
for (i = 0; i < 6; i++) {
textpart[i] = local_text[i + 1];
}
textpart[6] = '\0';
textpos = 2 * (24 + xoffset);
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
for (i = 0; i < 6; i++) {
textpart[i] = local_text[i + 7];
}
textpart[6] = '\0';
textpos = 2 * (71 + xoffset);
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
textdone = 1;
switch (strlen(addon)) {
case 2:
textpos = 2 * (xoffset + 114);
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, textflags, image_width, image_height);
break;
case 5:
textpos = 2 * (xoffset + 128);
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, textflags, image_width, image_height);
break;
}
break;
}
}
if (((symbol->symbology == BARCODE_UPCA) && (symbol->rows == 1)) || (symbol->symbology == BARCODE_UPCA_CC)) {
/* guard bar extensions and text formatting for UPCA */
latch = 1;
i = 0 + comp_offset;
do {
block_width = 0;
do {
block_width++;
} while (module_is_set(symbol, symbol->rows - 1, i + block_width) == module_is_set(symbol, symbol->rows - 1, i));
if (latch == 1) {
/* a bar */
draw_bar(pixelbuf, (i + xoffset - comp_offset) * 2, block_width * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
latch = 0;
} else {
/* a space */
latch = 1;
}
i += block_width;
} while (i < 11 + comp_offset);
draw_bar(pixelbuf, (46 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
draw_bar(pixelbuf, (48 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
latch = 1;
i = 85 + comp_offset;
do {
block_width = 0;
do {
block_width++;
} while (module_is_set(symbol, symbol->rows - 1, i + block_width) == module_is_set(symbol, symbol->rows - 1, i));
if (latch == 1) {
/* a bar */
draw_bar(pixelbuf, (i + xoffset - comp_offset) * 2, block_width * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
latch = 0;
} else {
/* a space */
latch = 1;
}
i += block_width;
} while (i < 96 + comp_offset);
textpart[0] = local_text[0];
textpart[1] = '\0';
textpos = 2 * (-5 + xoffset);
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
for (i = 0; i < 5; i++) {
textpart[i] = local_text[i + 1];
}
textpart[5] = '\0';
textpos = 2 * (27 + xoffset);
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
for (i = 0; i < 5; i++) {
textpart[i] = local_text[i + 6];
}
textpart[6] = '\0';
textpos = 2 * (68 + xoffset);
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
textpart[0] = local_text[11];
textpart[1] = '\0';
textpos = 2 * (100 + xoffset);
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
textdone = 1;
switch (strlen(addon)) {
case 2:
textpos = 2 * (xoffset + 116);
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, textflags, image_width, image_height);
break;
case 5:
textpos = 2 * (xoffset + 130);
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, textflags, image_width, image_height);
break;
}
}
if (((symbol->symbology == BARCODE_UPCE) && (symbol->rows == 1)) || (symbol->symbology == BARCODE_UPCE_CC)) {
/* guard bar extensions and text formatting for UPCE */
draw_bar(pixelbuf, (0 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
draw_bar(pixelbuf, (2 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
draw_bar(pixelbuf, (46 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
draw_bar(pixelbuf, (48 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
draw_bar(pixelbuf, (50 + xoffset) * 2, 1 * 2, (4 + (int) yoffset) * 2, 5 * 2, image_width, image_height);
textpart[0] = local_text[0];
textpart[1] = '\0';
textpos = 2 * (-5 + xoffset);
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
for (i = 0; i < 6; i++) {
textpart[i] = local_text[i + 1];
}
textpart[6] = '\0';
textpos = 2 * (24 + xoffset);
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
textpart[0] = local_text[7];
textpart[1] = '\0';
textpos = 2 * (55 + xoffset);
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
textdone = 1;
switch (strlen(addon)) {
case 2:
textpos = 2 * (xoffset + 70);
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, textflags, image_width, image_height);
break;
case 5:
textpos = 2 * (xoffset + 84);
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, textflags, image_width, image_height);
break;
}
}
xoffset -= comp_offset;
/* Put boundary bars or box around symbol */
if (((symbol->output_options & BARCODE_BOX) != 0) || ((symbol->output_options & BARCODE_BIND) != 0)) {
/* boundary bars */
draw_bar(pixelbuf, 0, (symbol->width + xoffset + xoffset) * 2, textoffset * 2, symbol->border_width * 2, image_width, image_height);
draw_bar(pixelbuf, 0, (symbol->width + xoffset + xoffset) * 2, (textoffset + symbol->height + symbol->border_width) * 2, symbol->border_width * 2, image_width, image_height);
if ((symbol->output_options & BARCODE_BIND) != 0) {
if ((symbol->rows > 1) && (is_stackable(symbol->symbology) == 1)) {
/* row binding */
for (r = 1; r < symbol->rows; r++) {
draw_bar(pixelbuf, xoffset * 2, symbol->width * 2, ((r * row_height) + textoffset + yoffset - 1) * 2, 2 * 2, image_width, image_height);
}
}
}
}
if ((symbol->output_options & BARCODE_BOX) != 0) {
/* side bars */
draw_bar(pixelbuf, 0, symbol->border_width * 2, textoffset * 2, (symbol->height + (2 * symbol->border_width)) * 2, image_width, image_height);
draw_bar(pixelbuf, (symbol->width + xoffset + xoffset - symbol->border_width) * 2, symbol->border_width * 2, textoffset * 2, (symbol->height + (2 * symbol->border_width)) * 2, image_width, image_height);
}
/* Put the human readable text at the bottom */
if ((textdone == 0) && (ustrlen(local_text) != 0)) {
textpos = (image_width / 2);
draw_string(pixelbuf, (char*) local_text, textpos, default_text_posn, textflags, image_width, image_height);
}
error_number = save_raster_image_to_file(symbol, image_height, image_width, pixelbuf, rotate_angle, data_type);
free(pixelbuf);
return error_number;
}
int plot_raster(struct zint_symbol *symbol, int rotate_angle, int file_type) {
int error;
#ifdef NO_PNG
if (file_type == OUT_PNG_FILE) {
printf("libpng not found");
return ZINT_ERROR_INVALID_OPTION;
}
#endif /* NO_PNG */
if (symbol->symbology == BARCODE_MAXICODE) {
error = plot_raster_maxicode(symbol, rotate_angle, file_type);
} else {
error = plot_raster_default(symbol, rotate_angle, file_type);
}
return error;
}

View File

@ -92,6 +92,7 @@ extern "C" {
char *bitmap;
int bitmap_width;
int bitmap_height;
unsigned int bitmap_byte_length;
struct zint_render *rendered;
};
@ -192,6 +193,7 @@ extern "C" {
#define BARCODE_CODEONE 141
#define BARCODE_GRIDMATRIX 142
// Output options
#define BARCODE_NO_ASCII 1
#define BARCODE_BIND 2
#define BARCODE_BOX 4
@ -202,24 +204,31 @@ extern "C" {
#define CMYK_COLOUR 128
#define BARCODE_DOTTY_MODE 256
// Input data types
#define DATA_MODE 0
#define UNICODE_MODE 1
#define GS1_MODE 2
#define KANJI_MODE 3
#define SJIS_MODE 4
// Data Matrix specific options
#define DM_SQUARE 100
#define DM_DMRE 101
#define DM_DMRE 101
// Warning and error conditions
#define ZINT_WARN_INVALID_OPTION 2
#define ZINT_ERROR_TOO_LONG 5
#define ZINT_ERROR_INVALID_DATA 6
#define ZINT_ERROR_INVALID_DATA 6
#define ZINT_ERROR_INVALID_CHECK 7
#define ZINT_ERROR_INVALID_OPTION 8
#define ZINT_ERROR_ENCODING_PROBLEM 9
#define ZINT_ERROR_FILE_ACCESS 10
#define ZINT_ERROR_FILE_ACCESS 10
#define ZINT_ERROR_MEMORY 11
// Raster file types
#define OUT_PNG_FILE 100
#define OUT_BMP_FILE 120
#if defined(__WIN32__) || defined(_WIN32) || defined(WIN32) || defined(_MSC_VER)
#if defined (DLL_EXPORT) || defined(PIC) || defined(_USRDLL)
#define ZINT_EXTERN __declspec(dllexport)