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/* raster.c - Handles output to raster files */
/*
libzint - the open source barcode library
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Copyright ( C ) 2009 - 2021 Robin Stuart < rstuart114 @ gmail . com >
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Redistribution and use in source and binary forms , with or without
modification , are permitted provided that the following conditions
are met :
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1. Redistributions of source code must retain the above copyright
notice , this list of conditions and the following disclaimer .
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2. Redistributions in binary form must reproduce the above copyright
notice , this list of conditions and the following disclaimer in the
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documentation and / or other materials provided with the distribution .
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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
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without specific prior written permission .
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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
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OUT OF THE USE OF THIS SOFTWARE , EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE .
*/
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/* vim: set ts=4 sw=4 et : */
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# include <assert.h>
# include <math.h>
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# include <stdio.h>
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# ifdef _MSC_VER
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# include <malloc.h>
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# include <fcntl.h>
# include <io.h>
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# endif /* _MSC_VER */
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# include "common.h"
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# include "output.h"
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# include "zfiletypes.h"
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# include "font.h" /* Font for human readable text */
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# define DEFAULT_INK '1'
# define DEFAULT_PAPER '0'
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# define UPCEAN_TEXT 1
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# ifndef NO_PNG
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INTERNAL int png_pixel_plot ( struct zint_symbol * symbol , unsigned char * pixelbuf ) ;
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# endif /* NO_PNG */
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INTERNAL int bmp_pixel_plot ( struct zint_symbol * symbol , unsigned char * pixelbuf ) ;
INTERNAL int pcx_pixel_plot ( struct zint_symbol * symbol , unsigned char * pixelbuf ) ;
INTERNAL int gif_pixel_plot ( struct zint_symbol * symbol , unsigned char * pixelbuf ) ;
INTERNAL int tif_pixel_plot ( struct zint_symbol * symbol , unsigned char * pixelbuf ) ;
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static const char ultra_colour [ ] = " 0CBMRYGKW " ;
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static int buffer_plot ( struct zint_symbol * symbol , unsigned char * pixelbuf ) {
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/* Place pixelbuffer into symbol */
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int fgalpha , bgalpha ;
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unsigned char fg [ 3 ] , bg [ 3 ] ;
unsigned char white [ 3 ] = { 0xff , 0xff , 0xff } ;
unsigned char cyan [ 3 ] = { 0 , 0xff , 0xff } ;
unsigned char blue [ 3 ] = { 0 , 0 , 0xff } ;
unsigned char magenta [ 3 ] = { 0xff , 0 , 0xff } ;
unsigned char red [ 3 ] = { 0xff , 0 , 0 } ;
unsigned char yellow [ 3 ] = { 0xff , 0xff , 0 } ;
unsigned char green [ 3 ] = { 0 , 0xff , 0 } ;
unsigned char black [ 3 ] = { 0 , 0 , 0 } ;
unsigned char * map [ 91 ] = {
NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , /* 0x00-0F */
NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , /* 0x10-1F */
NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , /* 0x20-2F */
bg , fg , NULL , NULL , NULL , NULL , NULL , NULL , NULL , NULL , /* 0-9 */
NULL , NULL , NULL , NULL , NULL , NULL , NULL , /* :;<=>?@ */
NULL , blue , cyan , NULL , NULL , NULL , green , NULL , NULL , NULL , black , NULL , magenta , /* A-M */
NULL , NULL , NULL , NULL , red , NULL , NULL , NULL , NULL , white , NULL , yellow , NULL /* N-Z */
} ;
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int row , column ;
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int plot_alpha = 0 ;
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unsigned char * bitmap ;
fg [ 0 ] = ( 16 * ctoi ( symbol - > fgcolour [ 0 ] ) ) + ctoi ( symbol - > fgcolour [ 1 ] ) ;
fg [ 1 ] = ( 16 * ctoi ( symbol - > fgcolour [ 2 ] ) ) + ctoi ( symbol - > fgcolour [ 3 ] ) ;
fg [ 2 ] = ( 16 * ctoi ( symbol - > fgcolour [ 4 ] ) ) + ctoi ( symbol - > fgcolour [ 5 ] ) ;
bg [ 0 ] = ( 16 * ctoi ( symbol - > bgcolour [ 0 ] ) ) + ctoi ( symbol - > bgcolour [ 1 ] ) ;
bg [ 1 ] = ( 16 * ctoi ( symbol - > bgcolour [ 2 ] ) ) + ctoi ( symbol - > bgcolour [ 3 ] ) ;
bg [ 2 ] = ( 16 * ctoi ( symbol - > bgcolour [ 4 ] ) ) + ctoi ( symbol - > bgcolour [ 5 ] ) ;
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if ( strlen ( symbol - > fgcolour ) > 6 ) {
fgalpha = ( 16 * ctoi ( symbol - > fgcolour [ 6 ] ) ) + ctoi ( symbol - > fgcolour [ 7 ] ) ;
plot_alpha = 1 ;
} else {
fgalpha = 0xff ;
}
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if ( strlen ( symbol - > bgcolour ) > 6 ) {
bgalpha = ( 16 * ctoi ( symbol - > bgcolour [ 6 ] ) ) + ctoi ( symbol - > bgcolour [ 7 ] ) ;
plot_alpha = 1 ;
} else {
bgalpha = 0xff ;
}
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/* Free any previous bitmap */
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if ( symbol - > bitmap ! = NULL ) {
free ( symbol - > bitmap ) ;
symbol - > bitmap = NULL ;
}
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if ( symbol - > alphamap ! = NULL ) {
free ( symbol - > alphamap ) ;
symbol - > alphamap = NULL ;
}
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symbol - > bitmap = ( unsigned char * ) malloc ( ( size_t ) symbol - > bitmap_width * symbol - > bitmap_height * 3 ) ;
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if ( symbol - > bitmap = = NULL ) {
strcpy ( symbol - > errtxt , " 661: Insufficient memory for bitmap buffer " ) ;
return ZINT_ERROR_MEMORY ;
}
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if ( plot_alpha ) {
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symbol - > alphamap = ( unsigned char * ) malloc ( ( size_t ) symbol - > bitmap_width * symbol - > bitmap_height ) ;
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if ( symbol - > alphamap = = NULL ) {
strcpy ( symbol - > errtxt , " 662: Insufficient memory for alphamap buffer " ) ;
return ZINT_ERROR_MEMORY ;
}
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for ( row = 0 ; row < symbol - > bitmap_height ; row + + ) {
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int p = row * symbol - > bitmap_width ;
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bitmap = symbol - > bitmap + p * 3 ;
for ( column = 0 ; column < symbol - > bitmap_width ; column + + , p + + , bitmap + = 3 ) {
memcpy ( bitmap , map [ pixelbuf [ p ] ] , 3 ) ;
symbol - > alphamap [ p ] = pixelbuf [ p ] = = DEFAULT_PAPER ? bgalpha : fgalpha ;
}
}
} else {
for ( row = 0 ; row < symbol - > bitmap_height ; row + + ) {
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int r = row * symbol - > bitmap_width ;
unsigned char * pb = pixelbuf + r ;
bitmap = symbol - > bitmap + r * 3 ;
for ( column = 0 ; column < symbol - > bitmap_width ; column + + , pb + + , bitmap + = 3 ) {
memcpy ( bitmap , map [ * pb ] , 3 ) ;
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}
}
}
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return 0 ;
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}
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static int save_raster_image_to_file ( struct zint_symbol * symbol , const int image_height , const int image_width ,
unsigned char * pixelbuf , int rotate_angle , const int file_type ) {
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int error_number ;
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int row , column ;
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unsigned char * rotated_pixbuf = pixelbuf ;
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/* Suppress clang-analyzer-core.UndefinedBinaryOperatorResult warning */
assert ( rotate_angle = = 0 | | rotate_angle = = 90 | | rotate_angle = = 180 | | rotate_angle = = 270 ) ;
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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 ;
}
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if ( rotate_angle ) {
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if ( ! ( rotated_pixbuf = ( unsigned char * ) malloc ( ( size_t ) image_width * image_height ) ) ) {
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strcpy ( symbol - > errtxt , " 650: Insufficient memory for pixel buffer " ) ;
return ZINT_ERROR_ENCODING_PROBLEM ;
}
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}
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/* Rotate image before plotting */
switch ( rotate_angle ) {
case 0 : /* Plot the right way up */
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/* Nothing to do */
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break ;
case 90 : /* Plot 90 degrees clockwise */
for ( row = 0 ; row < image_width ; row + + ) {
for ( column = 0 ; column < image_height ; column + + ) {
rotated_pixbuf [ ( row * image_height ) + column ] =
* ( pixelbuf + ( image_width * ( image_height - column - 1 ) ) + row ) ;
}
}
break ;
case 180 : /* Plot upside down */
for ( row = 0 ; row < image_height ; row + + ) {
for ( column = 0 ; column < image_width ; column + + ) {
rotated_pixbuf [ ( row * image_width ) + column ] =
* ( pixelbuf + ( image_width * ( image_height - row - 1 ) ) + ( image_width - column - 1 ) ) ;
}
}
break ;
case 270 : /* Plot 90 degrees anti-clockwise */
for ( row = 0 ; row < image_width ; row + + ) {
for ( column = 0 ; column < image_height ; column + + ) {
rotated_pixbuf [ ( row * image_height ) + column ] =
* ( pixelbuf + ( image_width * column ) + ( image_width - row - 1 ) ) ;
}
}
break ;
}
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switch ( file_type ) {
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case OUT_BUFFER :
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if ( symbol - > output_options & OUT_BUFFER_INTERMEDIATE ) {
if ( symbol - > bitmap ! = NULL ) {
free ( symbol - > bitmap ) ;
symbol - > bitmap = NULL ;
}
if ( symbol - > alphamap ! = NULL ) {
free ( symbol - > alphamap ) ;
symbol - > alphamap = NULL ;
}
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symbol - > bitmap = rotated_pixbuf ;
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rotate_angle = 0 ; /* Suppress freeing buffer if rotated */
error_number = 0 ;
} else {
error_number = buffer_plot ( symbol , rotated_pixbuf ) ;
}
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break ;
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case OUT_PNG_FILE :
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# ifndef NO_PNG
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error_number = png_pixel_plot ( symbol , rotated_pixbuf ) ;
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# else
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if ( rotate_angle ) {
free ( rotated_pixbuf ) ;
}
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return ZINT_ERROR_INVALID_OPTION ;
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# endif
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break ;
case OUT_PCX_FILE :
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error_number = pcx_pixel_plot ( symbol , rotated_pixbuf ) ;
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break ;
case OUT_GIF_FILE :
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error_number = gif_pixel_plot ( symbol , rotated_pixbuf ) ;
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break ;
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case OUT_TIF_FILE :
error_number = tif_pixel_plot ( symbol , rotated_pixbuf ) ;
break ;
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default :
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error_number = bmp_pixel_plot ( symbol , rotated_pixbuf ) ;
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break ;
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}
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if ( rotate_angle ) {
free ( rotated_pixbuf ) ;
}
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return error_number ;
}
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/* Helper to check point within bounds before setting */
static void draw_pt ( unsigned char * buf , const int buf_width , const int buf_height ,
const int x , const int y , const int fill ) {
if ( x > = 0 & & x < buf_width & & y > = 0 & & y < buf_height ) {
buf [ y * buf_width + x ] = fill ;
}
}
/* Draw a rectangle */
static void draw_bar ( unsigned char * pixelbuf , const int xpos , const int xlen , const int ypos , const int ylen ,
const int image_width , const int image_height , const char fill ) {
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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 + + ) {
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* ( pixelbuf + ( image_width * j ) + i ) = fill ;
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}
}
}
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/* Put a letter into a position */
static void draw_letter ( unsigned char * pixelbuf , const unsigned char letter , int xposn , const int yposn ,
const int textflags , const int image_width , const int image_height , const int si ) {
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int skip ;
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skip = 0 ;
if ( letter < 33 ) {
skip = 1 ;
}
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if ( ( letter > = 127 ) & & ( letter < 161 ) ) {
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skip = 1 ;
}
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if ( ( textflags & UPCEAN_TEXT ) & & ( letter < ' 0 ' | | letter > ' 9 ' ) ) {
skip = 1 ;
}
if ( yposn < 0 ) { /* Allow xposn < 0, dealt with below */
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skip = 1 ;
}
if ( skip = = 0 ) {
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int glyph_no ;
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int x , y ;
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int max_x , max_y ;
font_item * font_table ;
int bold = 0 ;
unsigned glyph_mask ;
int font_y ;
int half_si = si / 2 ;
int odd_si = si & 1 ;
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unsigned char * linePtr , * maxPtr ;
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int x_start = 0 ;
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if ( letter > 127 ) {
glyph_no = letter - 67 ; /* 161 - (127 - 33) */
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} else {
glyph_no = letter - 33 ;
}
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if ( textflags & UPCEAN_TEXT ) { /* Needs to be before SMALL_TEXT check */
/* No bold for UPCEAN */
if ( textflags & SMALL_TEXT ) {
font_table = upcean_small_font ;
max_x = UPCEAN_SMALL_FONT_WIDTH ;
max_y = UPCEAN_SMALL_FONT_HEIGHT ;
} else {
font_table = upcean_font ;
max_x = UPCEAN_FONT_WIDTH ;
max_y = UPCEAN_FONT_HEIGHT ;
}
glyph_no = letter - ' 0 ' ;
} else if ( textflags & SMALL_TEXT ) { // small font 5x9
/* No bold for small */
max_x = SMALL_FONT_WIDTH ;
max_y = SMALL_FONT_HEIGHT ;
font_table = small_font ;
} else if ( textflags & BOLD_TEXT ) { // bold font -> regular font + 1
max_x = NORMAL_FONT_WIDTH + 1 ;
max_y = NORMAL_FONT_HEIGHT ;
font_table = ascii_font ;
bold = 1 ;
} else { // regular font 7x14
max_x = NORMAL_FONT_WIDTH ;
max_y = NORMAL_FONT_HEIGHT ;
font_table = ascii_font ;
}
glyph_mask = ( ( unsigned ) 1 ) < < ( max_x - 1 ) ;
font_y = glyph_no * max_y ;
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if ( xposn < 0 ) {
x_start = - xposn ;
xposn = 0 ;
}
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if ( yposn + max_y > image_height ) {
max_y = image_height - yposn ;
}
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linePtr = pixelbuf + ( yposn * image_width ) + xposn ;
for ( y = 0 ; y < max_y ; y + + ) {
int x_si , y_si ;
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unsigned char * pixelPtr = linePtr ; /* Avoid warning */
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for ( y_si = 0 ; y_si < half_si ; y_si + + ) {
int extra_dot = 0 ;
pixelPtr = linePtr ;
maxPtr = linePtr + image_width - xposn ;
for ( x = x_start ; x < max_x & & pixelPtr < maxPtr ; x + + ) {
unsigned set = font_table [ font_y + y ] & ( glyph_mask > > x ) ;
for ( x_si = 0 ; x_si < half_si & & pixelPtr < maxPtr ; x_si + + ) {
if ( set ) {
* pixelPtr = DEFAULT_INK ;
extra_dot = bold ;
} else if ( extra_dot ) {
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* pixelPtr = DEFAULT_INK ;
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extra_dot = 0 ;
}
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pixelPtr + + ;
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}
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if ( pixelPtr < maxPtr & & odd_si & & ( x & 1 ) ) {
if ( set ) {
* pixelPtr = DEFAULT_INK ;
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}
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pixelPtr + + ;
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}
}
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if ( pixelPtr < maxPtr & & extra_dot ) {
* pixelPtr + + = DEFAULT_INK ;
}
linePtr + = image_width ;
}
if ( odd_si & & ( y & 1 ) ) {
memcpy ( linePtr , linePtr - image_width , pixelPtr - ( linePtr - image_width ) ) ;
linePtr + = image_width ;
}
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}
}
}
/* Plot a string into the pixel buffer */
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static void draw_string ( unsigned char * pixbuf , const unsigned char input_string [ ] , const int xposn , const int yposn ,
const int textflags , const int image_width , const int image_height , const int si ) {
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int i , string_length , string_left_hand , letter_width , letter_gap ;
int half_si = si / 2 , odd_si = si & 1 , x_incr ;
if ( textflags & UPCEAN_TEXT ) { /* Needs to be before SMALL_TEXT check */
/* No bold for UPCEAN */
letter_width = textflags & SMALL_TEXT ? UPCEAN_SMALL_FONT_WIDTH : UPCEAN_FONT_WIDTH ;
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letter_gap = 4 ;
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} else if ( textflags & SMALL_TEXT ) { // small font 5x9
/* No bold for small */
letter_width = SMALL_FONT_WIDTH ;
letter_gap = 0 ;
} else if ( textflags & BOLD_TEXT ) { // bold font -> width of the regular font + 1 extra dot + 1 extra space
letter_width = NORMAL_FONT_WIDTH + 1 ;
letter_gap = 1 ;
} else { // regular font 7x15
letter_width = NORMAL_FONT_WIDTH ;
letter_gap = 0 ;
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}
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letter_width + = letter_gap ;
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string_length = ( int ) ustrlen ( input_string ) ;
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string_left_hand = xposn - ( ( letter_width * string_length - letter_gap ) * half_si ) / 2 ;
if ( odd_si ) {
string_left_hand - = ( letter_width * string_length - letter_gap ) / 4 ;
}
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for ( i = 0 ; i < string_length ; i + + ) {
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x_incr = i * letter_width * half_si ;
if ( odd_si ) {
x_incr + = i * letter_width / 2 ;
}
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draw_letter ( pixbuf , input_string [ i ] , string_left_hand + x_incr , yposn , textflags , image_width , image_height ,
si ) ;
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}
}
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/* Draw disc using x² + y² <= r² */
static void draw_circle ( unsigned char * pixelbuf , const int image_width , const int image_height ,
const int x0 , const int y0 , const float radius , const char fill ) {
int x , y ;
const int radius_i = ( int ) floorf ( radius ) ;
const int radius_squared = radius_i * radius_i ;
for ( y = - radius_i ; y < = radius_i ; y + + ) {
const int y_squared = y * y ;
for ( x = - radius_i ; x < = radius_i ; x + + ) {
if ( ( x * x ) + y_squared < = radius_squared ) {
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draw_pt ( pixelbuf , image_width , image_height , x0 + x , y0 + y , fill ) ;
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}
}
}
}
/* Helper for `draw_wp_circle()` to draw horizontal filler lines within disc */
static void draw_mp_circle_lines ( unsigned char * pixelbuf , const int image_width , const int image_height ,
const int x0 , const int y0 , const int x , const int y , const int fill ) {
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int i ;
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for ( i = x0 - x ; i < = x0 + x ; i + + ) {
draw_pt ( pixelbuf , image_width , image_height , i , y0 + y , fill ) ; /* (-x, y) to (x, y) */
draw_pt ( pixelbuf , image_width , image_height , i , y0 - y , fill ) ; /* (-x, -y) to (x, -y) */
}
for ( i = x0 - y ; i < = x0 + y ; i + + ) {
draw_pt ( pixelbuf , image_width , image_height , i , y0 + x , fill ) ; /* (-y, x) to (y, x) */
draw_pt ( pixelbuf , image_width , image_height , i , y0 - x , fill ) ; /* (-y, -x) to (y, -x) */
}
}
/* Draw disc using Midpoint Circle Algorithm. Using this for MaxiCode rather than `draw_circle()` because it gives a
* flatter circumference with no single pixel peaks , similar to Figures J3 and J6 in ISO / IEC 16023 : 2000.
* Taken from https : //rosettacode.org/wiki/Bitmap/Midpoint_circle_algorithm#C
* " Content is available under GNU Free Documentation License 1.2 unless otherwise noted. "
* https : //www.gnu.org/licenses/old-licenses/fdl-1.2.html */
static void draw_mp_circle ( unsigned char * pixelbuf , const int image_width , const int image_height ,
const int x0 , const int y0 , const int r , const int fill ) {
/* Using top RHS octant from (0, r) going clockwise, so fast direction is x (i.e. always incremented) */
int f = 1 - r ;
int ddF_x = 0 ;
int ddF_y = - 2 * r ;
int x = 0 ;
int y = r ;
draw_mp_circle_lines ( pixelbuf , image_width , image_height , x0 , y0 , x , y , fill ) ;
while ( x < y ) {
if ( f > = 0 ) {
y - - ;
ddF_y + = 2 ;
f + = ddF_y ;
}
x + + ;
ddF_x + = 2 ;
f + = ddF_x + 1 ;
draw_mp_circle_lines ( pixelbuf , image_width , image_height , x0 , y0 , x , y , fill ) ;
}
}
/* Draw central bullseye finder in Maxicode symbols */
static void draw_bullseye ( unsigned char * pixelbuf , const int image_width , const int image_height ,
const int hex_width , const int hex_height , const int hx_start , const int hx_end ,
const int hex_image_height , const int xoffset , const int yoffset , const float scaler ) {
/* ISO/IEC 16023:2000 4.11.4 and 4.2.1.1 */
/* 14W right from leftmost centre = 14.5X */
const int x = ( int ) floorf ( 14.5f * hex_width - hx_start + xoffset * scaler ) ;
/* 16Y above bottom-most centre = halfway */
const int y = ( int ) ceilf ( hex_image_height / 2 + yoffset * scaler ) ;
const int r1 = ( int ) ceilf ( hex_height / 2.0f ) ; /* Inner diameter is hex_height (V) */
/* Total finder diameter is 9X, so radial increment for 5 radii r2 to r6 is ((9X - r1) / 5) / 2 */
int r_incr = ( ( hex_width * 9 - r1 ) / 5 ) / 2 ;
/* Fudge increment to lessen overlapping of finder with top/bottom of hexagons due to rounding errors */
if ( r_incr > hx_end ) {
r_incr - = hx_end ;
}
draw_mp_circle ( pixelbuf , image_width , image_height , x , y , r1 + r_incr * 5 , DEFAULT_INK ) ;
draw_mp_circle ( pixelbuf , image_width , image_height , x , y , r1 + r_incr * 4 , DEFAULT_PAPER ) ;
draw_mp_circle ( pixelbuf , image_width , image_height , x , y , r1 + r_incr * 3 , DEFAULT_INK ) ;
draw_mp_circle ( pixelbuf , image_width , image_height , x , y , r1 + r_incr * 2 , DEFAULT_PAPER ) ;
draw_mp_circle ( pixelbuf , image_width , image_height , x , y , r1 + r_incr , DEFAULT_INK ) ;
draw_mp_circle ( pixelbuf , image_width , image_height , x , y , r1 , DEFAULT_PAPER ) ;
}
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/* Put a hexagon into the pixel buffer */
static void draw_hexagon ( unsigned char * pixelbuf , const int image_width , const int image_height ,
unsigned char * scaled_hexagon , const int hex_width , const int hex_height , const int xposn ,
const int yposn ) {
int i , j ;
for ( i = 0 ; i < hex_height ; i + + ) {
for ( j = 0 ; j < hex_width ; j + + ) {
if ( scaled_hexagon [ ( i * hex_width ) + j ] = = DEFAULT_INK ) {
draw_pt ( pixelbuf , image_width , image_height , xposn + j , yposn + i , DEFAULT_INK ) ;
}
}
}
}
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/* Bresenham's line algorithm https://en.wikipedia.org/wiki/Bresenham's_line_algorithm
* Creative Commons Attribution - ShareAlike License
* https : //en.wikipedia.org/wiki/Wikipedia:Text_of_Creative_Commons_Attribution-ShareAlike_3.0_Unported_License */
static void plot_hexline ( unsigned char * scaled_hexagon , const int hex_width , const int hex_height ,
int start_x , int start_y , const int end_x , const int end_y ) {
const int dx = abs ( end_x - start_x ) ;
const int sx = start_x < end_x ? 1 : - 1 ;
const int dy = - abs ( end_y - start_y ) ;
const int sy = start_y < end_y ? 1 : - 1 ;
int e_xy = dx + dy ;
for ( ; ; ) {
int e2 ;
draw_pt ( scaled_hexagon , hex_width , hex_height , start_x , start_y , DEFAULT_INK ) ;
if ( start_x = = end_x & & start_y = = end_y ) {
break ;
}
e2 = 2 * e_xy ;
if ( e2 > = dy ) { /* e_xy+e_x > 0 */
e_xy + = dy ;
start_x + = sx ;
}
if ( e2 < = dx ) { /* e_xy+e_y < 0 */
e_xy + = dx ;
start_y + = sy ;
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}
}
}
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/* Create a hexagon shape and fill it */
static void plot_hexagon ( unsigned char * scaled_hexagon , const int hex_width , const int hex_height ,
const int hx_start , const int hy_start , const int hx_end , const int hy_end ) {
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int line , i ;
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int not_top ;
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const int hx_width = hex_width - hx_start - hx_end ;
const int hy_height = hex_height - hx_start - hx_end ;
const int hx_width_odd = hx_width & 1 ;
const int hy_height_odd = hy_height & 1 ;
const int hx_radius = hx_width / 2 ;
const int hy_radius = hy_height / 2 ;
/* To ensure symmetry, draw top left quadrant first, then copy/flip to other quadrants */
int start_y = hy_start + ( hy_radius + 1 ) / 2 ;
int end_x = hx_start + hx_radius ;
if ( hx_radius > 2 & & ( hx_radius < 10 | | ! hx_width_odd ) ) {
/* Line drawing matches examples in ISO/IEC 16023:2000 Annexe J if point just to the left of end midpoint */
end_x - - ;
}
/* Plot line of top left quadrant */
plot_hexline ( scaled_hexagon , hex_width , hex_height , hx_start , start_y , end_x , hy_start ) ;
/* Fill to right */
not_top = 0 ;
for ( line = hy_start ; line < hy_start + hy_radius + hy_height_odd ; line + + ) {
int first = - 1 ;
for ( i = hx_start ; i < hx_start + hx_radius + hx_width_odd ; i + + ) {
if ( first ! = - 1 ) {
scaled_hexagon [ ( hex_width * line ) + i ] = DEFAULT_INK ;
not_top = 1 ;
} else if ( scaled_hexagon [ ( hex_width * line ) + i ] = = DEFAULT_INK ) {
first = i + 1 ;
}
}
if ( not_top & & first = = - 1 ) { /* Fill empty lines at bottom */
for ( i = hx_start ; i < hx_start + hx_radius + hx_width_odd ; i + + ) {
scaled_hexagon [ ( hex_width * line ) + i ] = DEFAULT_INK ;
}
}
}
/* Copy left quadrant to right, flipping horizontally */
for ( line = hy_start ; line < hy_start + hy_radius + hy_height_odd ; line + + ) {
for ( i = hx_start ; i < hx_start + hx_radius + hx_width_odd ; i + + ) {
if ( scaled_hexagon [ ( hex_width * line ) + i ] = = DEFAULT_INK ) {
scaled_hexagon [ ( hex_width * line ) + hex_width - hx_end - ( i - hx_start + 1 ) ] = DEFAULT_INK ;
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}
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}
}
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/* Copy top to bottom, flipping vertically */
for ( line = hy_start ; line < hy_start + hy_radius + hy_height_odd ; line + + ) {
for ( i = hx_start ; i < hex_width ; i + + ) {
if ( scaled_hexagon [ ( hex_width * line ) + i ] = = DEFAULT_INK ) {
scaled_hexagon [ ( hex_width * ( hex_height - hy_end - ( line - hy_start + 1 ) ) ) + i ] = DEFAULT_INK ;
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}
}
}
}
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/* Plot a MaxiCode symbol with hexagons and bullseye */
static int plot_raster_maxicode ( struct zint_symbol * symbol , const int rotate_angle , const int file_type ) {
int row , column ;
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int image_height , image_width ;
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unsigned char * pixelbuf ;
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int error_number ;
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float xoffset , yoffset , roffset , boffset ;
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float scaler = symbol - > scale ;
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int xoffset_scaled , yoffset_scaled ;
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unsigned char * scaled_hexagon ;
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int hex_width , hex_height ;
int hx_start , hy_start , hx_end , hy_end ;
int hex_image_width , hex_image_height ;
int yposn_offset ;
const float two_div_sqrt3 = 1.1547f ; /* 2 / √3 */
const float sqrt3_div_two = 0.866f ; /* √3 / 2 == 1.5 / √3 */
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if ( scaler < 0.2f ) {
scaler = 0.2f ;
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}
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scaler * = 10.0f ;
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output_set_whitespace_offsets ( symbol , & xoffset , & yoffset , & roffset , & boffset ) ;
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xoffset_scaled = ( int ) floorf ( xoffset * scaler ) ;
yoffset_scaled = ( int ) floorf ( yoffset * scaler ) ;
hex_width = ( int ) roundf ( scaler ) ; /* Short diameter, X in ISO/IEC 16023:2000 Figure 8 (same as W) */
hex_height = ( int ) roundf ( scaler * two_div_sqrt3 ) ; /* Long diameter, V in Figure 8 */
/* Allow for whitespace around each hexagon (see ISO/IEC 16023:2000 Annexe J.4)
TODO : replace following kludge with proper calc of whitespace as per J .4 Steps 8 to 11 */
hx_start = ( int ) ( scaler < 3.5f ? 0.0f : ceilf ( hex_width * 0.05f ) ) ;
hy_start = ( int ) ceilf ( hex_height * 0.05f ) ;
hx_end = ( int ) roundf ( ( hex_width - hx_start ) * 0.05f ) ;
hy_end = ( int ) roundf ( ( hex_height - hy_start ) * 0.05f ) ;
/* The hexagons will be drawn within box (hex_width - hx_start - hx_end) x (hex_height - hy_start - hy_end)
and plotted starting at ( - hx_start , - hy_start ) */
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hex_image_width = 30 * hex_width - hx_start - hx_end ;
/* `yposn_offset` is vertical distance between rows, Y in Figure 8 */
/* TODO: replace following kludge with proper calc of hex_width/hex_height/yposn_offset as per J.4 Steps 1 to 7 */
yposn_offset = ( int ) ( scaler > 10.0f ? floorf ( sqrt3_div_two * hex_width ) : roundf ( sqrt3_div_two * hex_width ) ) ;
/* 32 rows drawn yposn_offset apart + final hexagon */
hex_image_height = 32 * yposn_offset + hex_height - hy_start - hy_end ;
image_width = ( int ) ceilf ( hex_image_width + ( xoffset + roffset ) * scaler ) ;
image_height = ( int ) ceilf ( hex_image_height + ( yoffset + boffset ) * scaler ) ;
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if ( ! ( pixelbuf = ( unsigned char * ) malloc ( ( size_t ) image_width * image_height ) ) ) {
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strcpy ( symbol - > errtxt , " 655: Insufficient memory for pixel buffer " ) ;
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return ZINT_ERROR_ENCODING_PROBLEM ;
}
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memset ( pixelbuf , DEFAULT_PAPER , ( size_t ) image_width * image_height ) ;
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if ( ! ( scaled_hexagon = ( unsigned char * ) malloc ( ( size_t ) hex_width * hex_height ) ) ) {
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strcpy ( symbol - > errtxt , " 656: Insufficient memory for pixel buffer " ) ;
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free ( pixelbuf ) ;
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return ZINT_ERROR_ENCODING_PROBLEM ;
}
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memset ( scaled_hexagon , DEFAULT_PAPER , ( size_t ) hex_width * hex_height ) ;
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plot_hexagon ( scaled_hexagon , hex_width , hex_height , hx_start , hy_start , hx_end , hy_end ) ;
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for ( row = 0 ; row < symbol - > rows ; row + + ) {
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const int odd_row = row & 1 ; /* Odd (reduced) row, even (full) row */
const int yposn = row * yposn_offset + yoffset_scaled - hy_start ;
const int xposn_offset = ( odd_row ? hex_width / 2 : 0 ) + xoffset_scaled - hx_start ;
for ( column = 0 ; column < symbol - > width - odd_row ; column + + ) {
const int xposn = column * hex_width + xposn_offset ;
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if ( module_is_set ( symbol , row , column ) ) {
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draw_hexagon ( pixelbuf , image_width , image_height , scaled_hexagon , hex_width , hex_height , xposn ,
yposn ) ;
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}
}
}
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draw_bullseye ( pixelbuf , image_width , image_height , hex_width , hex_height , hx_start , hx_end , hex_image_height ,
xoffset , yoffset , scaler ) ;
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if ( symbol - > border_width > 0 & & ( symbol - > output_options & ( BARCODE_BOX | BARCODE_BIND ) ) ) {
/* boundary bars */
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const int border_scaled = ( int ) floorf ( symbol - > border_width * scaler ) ;
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const int vwhitesp_scaled = ( int ) floorf ( symbol - > whitespace_height * scaler ) ;
const int ybind_top = hex_image_height + border_scaled + vwhitesp_scaled ;
draw_bar ( pixelbuf , 0 , image_width , vwhitesp_scaled , border_scaled , image_width , image_height , DEFAULT_INK ) ;
draw_bar ( pixelbuf , 0 , image_width , ybind_top , border_scaled , image_width , image_height , DEFAULT_INK ) ;
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if ( symbol - > output_options & BARCODE_BOX ) {
/* side bars */
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const int whitesp_scaled = ( int ) floorf ( symbol - > whitespace_width * scaler ) ;
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const int xbox_right = hex_image_width + border_scaled + whitesp_scaled * 2 ;
const int ybox_top = border_scaled + vwhitesp_scaled ;
const int ylen = image_height - ( border_scaled + vwhitesp_scaled ) * 2 ;
draw_bar ( pixelbuf , 0 , border_scaled , ybox_top , ylen , image_width , image_height , DEFAULT_INK ) ;
draw_bar ( pixelbuf , xbox_right , border_scaled , ybox_top , ylen , image_width , image_height , DEFAULT_INK ) ;
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}
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}
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error_number = save_raster_image_to_file ( symbol , image_height , image_width , pixelbuf , rotate_angle , file_type ) ;
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free ( scaled_hexagon ) ;
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if ( rotate_angle | | file_type ! = OUT_BUFFER | | ! ( symbol - > output_options & OUT_BUFFER_INTERMEDIATE ) ) {
free ( pixelbuf ) ;
}
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if ( error_number = = 0 ) {
/* Check whether size is compliant */
const float size_ratio = ( float ) hex_image_width / hex_image_height ;
if ( size_ratio < 24.82f / 26.69f | | size_ratio > 27.93f / 23.71f ) {
strcpy ( symbol - > errtxt , " 663: Size not within the minimum/maximum ranges " ) ;
error_number = ZINT_WARN_NONCOMPLIANT ;
}
}
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return error_number ;
}
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/* Draw binding or box */
static void draw_bind_box ( struct zint_symbol * symbol , unsigned char * pixelbuf , const int xoffset , const int roffset ,
const int textoffset , const int overspill_scaled , const int image_width , const int image_height ,
const int si ) {
if ( symbol - > border_width > 0 & & ( symbol - > output_options & ( BARCODE_BOX | BARCODE_BIND ) ) ) {
const int bwidth = symbol - > border_width * si ;
const int ybind_bottom = ( textoffset + symbol - > whitespace_height ) * si ;
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const int ybind_top = ( textoffset + symbol - > whitespace_height + symbol - > height ) * si + overspill_scaled
+ bwidth ;
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/* Horizontal boundary bars */
if ( ( symbol - > output_options & BARCODE_BOX )
| | ( symbol - > symbology ! = BARCODE_CODABLOCKF & & symbol - > symbology ! = BARCODE_HIBC_BLOCKF ) ) {
/* Box or not CodaBlockF */
const int xlen = ( symbol - > width + xoffset + roffset ) * si + overspill_scaled ;
draw_bar ( pixelbuf , 0 , xlen , ybind_bottom , bwidth , image_width , image_height , DEFAULT_INK ) ;
draw_bar ( pixelbuf , 0 , xlen , ybind_top , bwidth , image_width , image_height , DEFAULT_INK ) ;
} else {
/* CodaBlockF bind - does not extend over horizontal whitespace */
const int xlen = symbol - > width * si ;
draw_bar ( pixelbuf , xoffset * si , xlen , ybind_bottom , bwidth , image_width , image_height , DEFAULT_INK ) ;
draw_bar ( pixelbuf , xoffset * si , xlen , ybind_top , bwidth , image_width , image_height , DEFAULT_INK ) ;
}
if ( symbol - > output_options & BARCODE_BOX ) {
/* Vertical side bars */
const int ylen = ( symbol - > height + symbol - > border_width * 2 ) * si ;
const int ybox = ( textoffset + symbol - > whitespace_height ) * si ;
const int xbox_right = ( symbol - > width + xoffset + roffset - symbol - > border_width ) * si + overspill_scaled ;
draw_bar ( pixelbuf , 0 , bwidth , ybox , ylen , image_width , image_height , DEFAULT_INK ) ;
draw_bar ( pixelbuf , xbox_right , bwidth , ybox , ylen , image_width , image_height , DEFAULT_INK ) ;
}
}
}
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static int plot_raster_dotty ( struct zint_symbol * symbol , const int rotate_angle , const int file_type ) {
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float scaler = 2 * symbol - > scale ;
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unsigned char * scaled_pixelbuf ;
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int r , i ;
int scale_width , scale_height ;
int error_number = 0 ;
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float xoffset , yoffset , roffset , boffset ;
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float dot_offset_scaled ;
float dot_radius_scaled ;
int dot_radius_scaled_i ;
int dot_overspill_scaled_i ;
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if ( scaler < 2.0f ) {
scaler = 2.0f ;
}
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dot_radius_scaled = ( symbol - > dot_size * scaler ) / 2.0f ;
dot_radius_scaled_i = ( int ) floorf ( dot_radius_scaled ) ;
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output_set_whitespace_offsets ( symbol , & xoffset , & yoffset , & roffset , & boffset ) ;
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/* TODO: Revisit this overspill stuff, it's hacky */
if ( symbol - > dot_size < 1.0f ) {
dot_overspill_scaled_i = 0 ;
/* Offset (1 - dot_size) / 2 + dot_radius == (1 - dot_size + dot_size) / 2 == 1 / 2 */
dot_offset_scaled = scaler / 2.0f ;
} else { /* Allow for exceeding 1X */
dot_overspill_scaled_i = ( int ) ceilf ( ( symbol - > dot_size - 1.0f ) * scaler ) ;
dot_offset_scaled = dot_radius_scaled ;
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}
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if ( dot_overspill_scaled_i = = 0 ) {
dot_overspill_scaled_i = 1 ;
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}
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scale_width = ( int ) floorf ( ( symbol - > width + xoffset + roffset ) * scaler + dot_overspill_scaled_i ) ;
scale_height = ( int ) floorf ( ( symbol - > height + yoffset + boffset ) * scaler + dot_overspill_scaled_i ) ;
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/* Apply scale options by creating another pixel buffer */
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if ( ! ( scaled_pixelbuf = ( unsigned char * ) malloc ( ( size_t ) scale_width * scale_height ) ) ) {
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strcpy ( symbol - > errtxt , " 657: Insufficient memory for pixel buffer " ) ;
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return ZINT_ERROR_ENCODING_PROBLEM ;
}
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memset ( scaled_pixelbuf , DEFAULT_PAPER , ( size_t ) scale_width * scale_height ) ;
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/* Plot the body of the symbol to the pixel buffer */
for ( r = 0 ; r < symbol - > rows ; r + + ) {
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int row_scaled = ( int ) floorf ( ( r + yoffset ) * scaler + dot_offset_scaled ) ;
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for ( i = 0 ; i < symbol - > width ; i + + ) {
if ( module_is_set ( symbol , r , i ) ) {
draw_circle ( scaled_pixelbuf , scale_width , scale_height ,
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( int ) floorf ( ( i + xoffset ) * scaler + dot_offset_scaled ) ,
row_scaled , dot_radius_scaled_i , DEFAULT_INK ) ;
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}
}
}
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draw_bind_box ( symbol , scaled_pixelbuf , xoffset , roffset , 0 /*textoffset*/ , dot_overspill_scaled_i ,
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scale_width , scale_height , ( int ) floorf ( scaler ) ) ;
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error_number = save_raster_image_to_file ( symbol , scale_height , scale_width , scaled_pixelbuf , rotate_angle ,
file_type ) ;
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if ( rotate_angle | | file_type ! = OUT_BUFFER | | ! ( symbol - > output_options & OUT_BUFFER_INTERMEDIATE ) ) {
free ( scaled_pixelbuf ) ;
}
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return error_number ;
}
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/* Convert UTF-8 to ISO 8859-1 for draw_string() human readable text */
static void to_iso8859_1 ( const unsigned char source [ ] , unsigned char preprocessed [ ] ) {
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int j , i , input_length ;
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input_length = ( int ) ustrlen ( source ) ;
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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) */
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assert ( i + 1 < input_length ) ;
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i + + ;
preprocessed [ j ] = source [ i ] ;
j + + ;
break ;
case 0xC3 :
/* UTF-8 C3xx */
/* Character range: C380h (latin: C0h) to C3BFh (latin: FFh) */
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assert ( i + 1 < input_length ) ;
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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 ;
}
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static int plot_raster_default ( struct zint_symbol * symbol , const int rotate_angle , const int file_type ) {
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int error_number ;
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float large_bar_height ;
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int textdone = 0 ;
int main_width ;
int comp_offset = 0 ;
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unsigned char addon [ 6 ] ;
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int addon_gap = 0 ;
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float addon_text_posn = 0.0f ;
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float xoffset , yoffset , roffset , boffset ;
float textoffset ;
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int default_text_posn ;
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float row_height , row_posn ;
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int upceanflag = 0 ;
int addon_latch = 0 ;
unsigned char textpart1 [ 5 ] , textpart2 [ 7 ] , textpart3 [ 7 ] , textpart4 [ 2 ] ;
int textpos ;
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int hide_text ;
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int i , r ;
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int text_height ; /* Font pixel size (so whole integers) */
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float text_gap ; /* Gap between barcode and text */
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int textflags = 0 ;
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int guardoffset = 0 ;
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int image_width , image_height ;
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unsigned char * pixelbuf ;
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float next_yposn ;
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int latch ;
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float scaler = symbol - > scale ;
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int si ;
int half_int_scaling ;
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int scale_width , scale_height ;
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unsigned char * scaled_pixelbuf ;
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int horiz , vert ;
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/* Ignore scaling < 0.5 for raster as would drop modules */
if ( scaler < 0.5f ) {
scaler = 0.5f ;
}
/* If half-integer scaling, then set integer scaler `si` to avoid scaling at end */
half_int_scaling = scaler * 2.0f = = ( int ) ( scaler * 2.0f ) ;
if ( half_int_scaling ) {
si = ( int ) ( scaler * 2.0f ) ;
} else {
si = 2 ;
}
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large_bar_height = output_large_bar_height ( symbol , si /*Round to scale*/ ) ;
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main_width = symbol - > width ;
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if ( is_extendable ( symbol - > symbology ) ) {
upceanflag = output_process_upcean ( symbol , & main_width , & comp_offset , addon , & addon_gap ) ;
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}
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output_set_whitespace_offsets ( symbol , & xoffset , & yoffset , & roffset , & boffset ) ;
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/* Note font sizes halved as in pixels */
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if ( upceanflag ) {
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textflags = UPCEAN_TEXT | ( symbol - > output_options & SMALL_TEXT ) ; /* Bold not available for UPC/EAN */
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text_height = ( UPCEAN_FONT_HEIGHT + 1 ) / 2 ;
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text_gap = 1.0f ;
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} else {
textflags = symbol - > output_options & ( SMALL_TEXT | BOLD_TEXT ) ;
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text_height = textflags & SMALL_TEXT ? ( SMALL_FONT_HEIGHT + 1 ) / 2 : ( NORMAL_FONT_HEIGHT + 1 ) / 2 ;
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text_gap = 1.0f ;
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}
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hide_text = ( ( ! symbol - > show_hrt ) | | ( ustrlen ( symbol - > text ) = = 0 ) ) ;
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if ( hide_text ) {
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/* Need 5X from bottom for guard bars */
textoffset = upceanflag & & upceanflag ! = 2 & & upceanflag ! = 5 ? 5 : 0 ;
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} else {
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if ( upceanflag ) {
textoffset = ( text_height > 5 ? text_height : 5 ) + text_gap ; /* Need at least 5X for guard bars */
} else {
textoffset = text_height + text_gap ;
}
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}
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if ( upceanflag ) {
guardoffset = textoffset - 5 + boffset ;
}
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image_width = ( symbol - > width + xoffset + roffset ) * si ;
image_height = ( symbol - > height + textoffset + yoffset + boffset ) * si ;
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2020-11-01 21:32:55 +03:00
if ( ! ( pixelbuf = ( unsigned char * ) malloc ( ( size_t ) image_width * image_height ) ) ) {
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strcpy ( symbol - > errtxt , " 658: Insufficient memory for pixel buffer " ) ;
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return ZINT_ERROR_ENCODING_PROBLEM ;
}
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memset ( pixelbuf , DEFAULT_PAPER , ( size_t ) image_width * image_height ) ;
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default_text_posn = image_height - ( textoffset - text_gap + symbol - > whitespace_height ) * si ;
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row_height = 0.0f ;
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row_posn = textoffset + boffset ; /* Bottom up */
next_yposn = textoffset + boffset ;
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/* Plot the body of the symbol to the pixel buffer */
for ( r = 0 ; r < symbol - > rows ; r + + ) {
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float plot_yposn ;
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float plot_height ;
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int this_row = symbol - > rows - r - 1 ; /* invert r otherwise plots upside down */
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row_posn + = row_height ;
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plot_yposn = next_yposn ;
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row_height = symbol - > row_height [ this_row ] ? symbol - > row_height [ this_row ] : large_bar_height ;
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next_yposn = row_posn + row_height ;
2017-10-16 20:26:54 +03:00
plot_height = next_yposn - plot_yposn ;
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2020-11-01 21:32:55 +03:00
plot_yposn * = si ;
plot_height * = si ;
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i = 0 ;
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if ( symbol - > symbology = = BARCODE_ULTRA ) {
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do {
2020-11-01 21:32:55 +03:00
int module_fill = module_colour_is_set ( symbol , this_row , i ) ;
int block_width = 0 ;
do {
block_width + + ;
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} while ( ( i + block_width < symbol - > width )
& & module_colour_is_set ( symbol , this_row , i + block_width ) = = module_fill ) ;
2020-11-01 21:32:55 +03:00
if ( module_fill ) {
/* a colour block */
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draw_bar ( pixelbuf , ( i + xoffset ) * si , block_width * si , plot_yposn , plot_height , image_width ,
image_height , ultra_colour [ module_fill ] ) ;
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}
2020-11-01 21:32:55 +03:00
i + = block_width ;
} while ( i < symbol - > width ) ;
} else {
do {
int module_fill = module_is_set ( symbol , this_row , i ) ;
int block_width = 0 ;
do {
block_width + + ;
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} while ( ( i + block_width < symbol - > width )
& & module_is_set ( symbol , this_row , i + block_width ) = = module_fill ) ;
2020-11-01 21:32:55 +03:00
if ( upceanflag & & ( addon_latch = = 0 ) & & ( r = = 0 ) & & ( i > main_width ) ) {
plot_height = row_height - ( text_height + text_gap ) + 5.0f ;
plot_yposn = row_posn - 5.0f ;
if ( plot_yposn < 0.0f ) {
plot_yposn = 0.0f ;
}
if ( upceanflag = = 12 | | upceanflag = = 6 ) { /* UPC-A/E add-ons don't descend */
plot_height - = 5.0f ;
plot_yposn + = 5.0f ;
}
if ( plot_height < 0.5f ) {
plot_height = 0.5f ;
}
/* Need to invert composite position */
2021-06-19 15:11:23 +03:00
addon_text_posn = is_composite ( symbol - > symbology )
? image_height - ( plot_yposn + plot_height + text_height + text_gap ) * si
: yoffset * si ;
2020-11-01 21:32:55 +03:00
plot_yposn * = si ;
plot_height * = si ;
addon_latch = 1 ;
2020-07-15 21:00:12 +03:00
}
2020-11-01 21:32:55 +03:00
if ( module_fill ) {
/* a bar */
2021-06-19 15:11:23 +03:00
draw_bar ( pixelbuf , ( i + xoffset ) * si , block_width * si , plot_yposn , plot_height , image_width ,
image_height , DEFAULT_INK ) ;
2020-01-06 23:01:48 +03:00
}
2020-11-01 21:32:55 +03:00
i + = block_width ;
2016-07-20 01:02:39 +03:00
2020-11-01 21:32:55 +03:00
} while ( i < symbol - > width ) ;
}
2016-07-20 01:02:39 +03:00
}
xoffset + = comp_offset ;
2020-07-15 21:00:12 +03:00
if ( upceanflag ) {
/* Guard bar extension */
if ( upceanflag = = 6 ) { /* UPC-E */
2021-06-19 15:11:23 +03:00
draw_bar ( pixelbuf , ( 0 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
draw_bar ( pixelbuf , ( 2 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
draw_bar ( pixelbuf , ( 46 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
draw_bar ( pixelbuf , ( 48 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
draw_bar ( pixelbuf , ( 50 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
2020-07-15 21:00:12 +03:00
} else if ( upceanflag = = 8 ) { /* EAN-8 */
2021-06-19 15:11:23 +03:00
draw_bar ( pixelbuf , ( 0 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
draw_bar ( pixelbuf , ( 2 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
draw_bar ( pixelbuf , ( 32 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
draw_bar ( pixelbuf , ( 34 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
draw_bar ( pixelbuf , ( 64 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
draw_bar ( pixelbuf , ( 66 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
2020-07-15 21:00:12 +03:00
} else if ( upceanflag = = 12 ) { /* UPC-A */
latch = 1 ;
i = 0 + comp_offset ;
do {
2020-11-01 21:32:55 +03:00
int module_fill = module_is_set ( symbol , symbol - > rows - 1 , i ) ;
int block_width = 0 ;
2020-07-15 21:00:12 +03:00
do {
block_width + + ;
2021-06-19 15:11:23 +03:00
} while ( ( i + block_width < symbol - > width )
& & module_is_set ( symbol , symbol - > rows - 1 , i + block_width ) = = module_fill ) ;
2020-07-15 21:00:12 +03:00
if ( latch = = 1 ) {
/* a bar */
2021-06-19 15:11:23 +03:00
draw_bar ( pixelbuf , ( i + xoffset - comp_offset ) * si , block_width * si , guardoffset * si , 5 * si ,
image_width , image_height , DEFAULT_INK ) ;
2020-07-15 21:00:12 +03:00
latch = 0 ;
} else {
/* a space */
latch = 1 ;
2016-07-20 01:02:39 +03:00
}
2020-07-15 21:00:12 +03:00
i + = block_width ;
} while ( i < 11 + comp_offset ) ;
2021-06-19 15:11:23 +03:00
draw_bar ( pixelbuf , ( 46 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
draw_bar ( pixelbuf , ( 48 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
2020-07-15 21:00:12 +03:00
latch = 1 ;
i = 85 + comp_offset ;
do {
2020-11-01 21:32:55 +03:00
int module_fill = module_is_set ( symbol , symbol - > rows - 1 , i ) ;
int block_width = 0 ;
2020-07-15 21:00:12 +03:00
do {
block_width + + ;
2021-06-19 15:11:23 +03:00
} while ( ( i + block_width < symbol - > width )
& & module_is_set ( symbol , symbol - > rows - 1 , i + block_width ) = = module_fill ) ;
2020-07-15 21:00:12 +03:00
if ( latch = = 1 ) {
/* a bar */
2021-06-19 15:11:23 +03:00
draw_bar ( pixelbuf , ( i + xoffset - comp_offset ) * si , block_width * si , guardoffset * si , 5 * si ,
image_width , image_height , DEFAULT_INK ) ;
2020-07-15 21:00:12 +03:00
latch = 0 ;
} else {
/* a space */
latch = 1 ;
}
i + = block_width ;
} while ( i < 96 + comp_offset ) ;
} else if ( upceanflag = = 13 ) { /* EAN-13 */
2021-06-19 15:11:23 +03:00
draw_bar ( pixelbuf , ( 0 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
draw_bar ( pixelbuf , ( 2 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
draw_bar ( pixelbuf , ( 46 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
draw_bar ( pixelbuf , ( 48 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
draw_bar ( pixelbuf , ( 92 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
draw_bar ( pixelbuf , ( 94 + xoffset ) * si , 1 * si , guardoffset * si , 5 * si , image_width , image_height ,
DEFAULT_INK ) ;
2020-07-15 21:00:12 +03:00
}
}
if ( ! hide_text ) {
2016-07-20 01:02:39 +03:00
2020-07-15 21:00:12 +03:00
if ( upceanflag ) {
2020-09-13 15:37:15 +03:00
/* Note font sizes halved as in pixels */
2021-06-19 15:11:23 +03:00
/* Halved again to get middle position that draw_string() expects */
int upcea_width_adj = ( UPCEAN_SMALL_FONT_WIDTH + 3 ) / 4 ;
2020-09-13 15:37:15 +03:00
int upcea_height_adj = ( UPCEAN_FONT_HEIGHT - UPCEAN_SMALL_FONT_HEIGHT ) * si / 2 ;
2021-06-19 15:11:23 +03:00
/* Halved again to get middle position that draw_string() expects */
int ean_width_adj = ( UPCEAN_FONT_WIDTH + 3 ) / 4 ;
2020-09-13 15:37:15 +03:00
2020-07-15 21:00:12 +03:00
output_upcean_split_text ( upceanflag , symbol - > text , textpart1 , textpart2 , textpart3 , textpart4 ) ;
if ( upceanflag = = 6 ) { /* UPC-E */
2020-09-13 15:37:15 +03:00
textpos = ( - ( 5 + upcea_width_adj ) + xoffset ) * si ;
2021-06-19 15:11:23 +03:00
draw_string ( pixelbuf , textpart1 , textpos , default_text_posn + upcea_height_adj ,
textflags | SMALL_TEXT , image_width , image_height , si ) ;
2020-08-10 21:40:10 +03:00
textpos = ( 24 + xoffset ) * si ;
2021-06-19 15:11:23 +03:00
draw_string ( pixelbuf , textpart2 , textpos , default_text_posn , textflags , image_width , image_height ,
si ) ;
2020-09-13 15:37:15 +03:00
textpos = ( 51 + 3 + upcea_width_adj + xoffset ) * si ;
2021-06-19 15:11:23 +03:00
draw_string ( pixelbuf , textpart3 , textpos , default_text_posn + upcea_height_adj ,
textflags | SMALL_TEXT , image_width , image_height , si ) ;
2020-07-15 21:00:12 +03:00
textdone = 1 ;
switch ( ustrlen ( addon ) ) {
case 2 :
2020-08-10 21:40:10 +03:00
textpos = ( 61 + xoffset + addon_gap ) * si ;
2021-06-19 15:11:23 +03:00
draw_string ( pixelbuf , addon , textpos , addon_text_posn , textflags , image_width , image_height ,
si ) ;
2020-07-15 21:00:12 +03:00
break ;
case 5 :
2020-08-10 21:40:10 +03:00
textpos = ( 75 + xoffset + addon_gap ) * si ;
2021-06-19 15:11:23 +03:00
draw_string ( pixelbuf , addon , textpos , addon_text_posn , textflags , image_width , image_height ,
si ) ;
2020-07-15 21:00:12 +03:00
break ;
2016-07-20 01:02:39 +03:00
}
2020-07-15 21:00:12 +03:00
} else if ( upceanflag = = 8 ) { /* EAN-8 */
2020-08-10 21:40:10 +03:00
textpos = ( 17 + xoffset ) * si ;
2021-06-19 15:11:23 +03:00
draw_string ( pixelbuf , textpart1 , textpos , default_text_posn , textflags , image_width , image_height ,
si ) ;
2020-08-10 21:40:10 +03:00
textpos = ( 50 + xoffset ) * si ;
2021-06-19 15:11:23 +03:00
draw_string ( pixelbuf , textpart2 , textpos , default_text_posn , textflags , image_width , image_height ,
si ) ;
2016-07-20 01:02:39 +03:00
textdone = 1 ;
2020-07-15 21:00:12 +03:00
switch ( ustrlen ( addon ) ) {
2016-07-20 01:02:39 +03:00
case 2 :
2020-08-10 21:40:10 +03:00
textpos = ( 77 + xoffset + addon_gap ) * si ;
2021-06-19 15:11:23 +03:00
draw_string ( pixelbuf , addon , textpos , addon_text_posn , textflags , image_width , image_height ,
si ) ;
2016-07-20 01:02:39 +03:00
break ;
case 5 :
2020-08-10 21:40:10 +03:00
textpos = ( 91 + xoffset + addon_gap ) * si ;
2021-06-19 15:11:23 +03:00
draw_string ( pixelbuf , addon , textpos , addon_text_posn , textflags , image_width , image_height ,
si ) ;
2016-07-20 01:02:39 +03:00
break ;
}
2020-07-15 21:00:12 +03:00
} else if ( upceanflag = = 12 ) { /* UPC-A */
2020-09-13 15:37:15 +03:00
textpos = ( - ( 5 + upcea_width_adj ) + xoffset ) * si ;
2021-06-19 15:11:23 +03:00
draw_string ( pixelbuf , textpart1 , textpos , default_text_posn + upcea_height_adj ,
textflags | SMALL_TEXT , image_width , image_height , si ) ;
2020-08-10 21:40:10 +03:00
textpos = ( 27 + xoffset ) * si ;
2021-06-19 15:11:23 +03:00
draw_string ( pixelbuf , textpart2 , textpos , default_text_posn , textflags , image_width , image_height ,
si ) ;
2020-09-13 15:37:15 +03:00
textpos = ( 67 + xoffset ) * si ;
2021-06-19 15:11:23 +03:00
draw_string ( pixelbuf , textpart3 , textpos , default_text_posn , textflags , image_width , image_height ,
si ) ;
2020-09-13 15:37:15 +03:00
textpos = ( 95 + 5 + upcea_width_adj + xoffset ) * si ;
2021-06-19 15:11:23 +03:00
draw_string ( pixelbuf , textpart4 , textpos , default_text_posn + upcea_height_adj ,
textflags | SMALL_TEXT , image_width , image_height , si ) ;
2020-07-15 21:00:12 +03:00
textdone = 1 ;
switch ( ustrlen ( addon ) ) {
case 2 :
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textpos = ( 105 + xoffset + addon_gap ) * si ;
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draw_string ( pixelbuf , addon , textpos , addon_text_posn , textflags , image_width , image_height ,
si ) ;
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break ;
case 5 :
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textpos = ( 119 + xoffset + addon_gap ) * si ;
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draw_string ( pixelbuf , addon , textpos , addon_text_posn , textflags , image_width , image_height ,
si ) ;
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break ;
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}
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} else if ( upceanflag = = 13 ) { /* EAN-13 */
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textpos = ( - ( 5 + ean_width_adj ) + xoffset ) * si ;
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draw_string ( pixelbuf , textpart1 , textpos , default_text_posn , textflags , image_width , image_height ,
si ) ;
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textpos = ( 24 + xoffset ) * si ;
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draw_string ( pixelbuf , textpart2 , textpos , default_text_posn , textflags , image_width , image_height ,
si ) ;
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textpos = ( 71 + xoffset ) * si ;
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draw_string ( pixelbuf , textpart3 , textpos , default_text_posn , textflags , image_width , image_height ,
si ) ;
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textdone = 1 ;
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switch ( ustrlen ( addon ) ) {
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case 2 :
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textpos = ( 105 + xoffset + addon_gap ) * si ;
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draw_string ( pixelbuf , addon , textpos , addon_text_posn , textflags , image_width , image_height ,
si ) ;
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break ;
case 5 :
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textpos = ( 119 + xoffset + addon_gap ) * si ;
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draw_string ( pixelbuf , addon , textpos , addon_text_posn , textflags , image_width , image_height ,
si ) ;
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break ;
}
}
}
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if ( ! textdone ) {
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/* Suppress clang-analyzer-core.CallAndMessage warning */
unsigned char local_text [ sizeof ( symbol - > text ) ] = { 0 } ;
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to_iso8859_1 ( symbol - > text , local_text ) ;
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/* Put the human readable text at the bottom */
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textpos = ( main_width / 2 + xoffset ) * si ;
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draw_string ( pixelbuf , local_text , textpos , default_text_posn , textflags , image_width , image_height ,
si ) ;
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}
}
xoffset - = comp_offset ;
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// Binding and boxes
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if ( symbol - > output_options & BARCODE_BIND ) {
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if ( ( symbol - > rows > 1 ) & & ( is_stackable ( symbol - > symbology ) = = 1 ) ) {
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float sep_height = 1.0f ;
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if ( symbol - > option_3 > 0 & & symbol - > option_3 < = 4 ) {
sep_height = symbol - > option_3 ;
}
/* row binding */
if ( symbol - > symbology ! = BARCODE_CODABLOCKF & & symbol - > symbology ! = BARCODE_HIBC_BLOCKF ) {
for ( r = 1 ; r < symbol - > rows ; r + + ) {
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row_height = symbol - > row_height [ r - 1 ] ? symbol - > row_height [ r - 1 ] : large_bar_height ;
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draw_bar ( pixelbuf , xoffset * si , symbol - > width * si ,
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( ( r * row_height ) + textoffset + yoffset - sep_height / 2 ) * si , sep_height * si ,
image_width , image_height , DEFAULT_INK ) ;
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}
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} else {
for ( r = 1 ; r < symbol - > rows ; r + + ) {
/* Avoid 11-module start and 13-module stop chars */
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row_height = symbol - > row_height [ r - 1 ] ? symbol - > row_height [ r - 1 ] : large_bar_height ;
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draw_bar ( pixelbuf , ( xoffset + 11 ) * si , ( symbol - > width - 24 ) * si ,
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( ( r * row_height ) + textoffset + yoffset - sep_height / 2 ) * si , sep_height * si ,
image_width , image_height , DEFAULT_INK ) ;
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}
}
}
}
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draw_bind_box ( symbol , pixelbuf , xoffset , roffset , textoffset , 0 /*overspill*/ , image_width , image_height , si ) ;
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if ( ! half_int_scaling ) {
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scale_width = image_width * scaler ;
scale_height = image_height * scaler ;
/* Apply scale options by creating another pixel buffer */
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if ( ! ( scaled_pixelbuf = ( unsigned char * ) malloc ( ( size_t ) scale_width * scale_height ) ) ) {
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free ( pixelbuf ) ;
strcpy ( symbol - > errtxt , " 659: Insufficient memory for pixel buffer " ) ;
return ZINT_ERROR_ENCODING_PROBLEM ;
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}
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memset ( scaled_pixelbuf , DEFAULT_PAPER , ( size_t ) scale_width * scale_height ) ;
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for ( vert = 0 ; vert < scale_height ; vert + + ) {
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int vert_row = vert * scale_width ;
int image_vert_row = ( ( int ) ( vert / scaler ) ) * image_width ;
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for ( horiz = 0 ; horiz < scale_width ; horiz + + ) {
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* ( scaled_pixelbuf + vert_row + horiz ) = * ( pixelbuf + image_vert_row + ( int ) ( horiz / scaler ) ) ;
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}
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}
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error_number = save_raster_image_to_file ( symbol , scale_height , scale_width , scaled_pixelbuf , rotate_angle ,
file_type ) ;
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if ( rotate_angle | | file_type ! = OUT_BUFFER | | ! ( symbol - > output_options & OUT_BUFFER_INTERMEDIATE ) ) {
free ( scaled_pixelbuf ) ;
}
free ( pixelbuf ) ;
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} else {
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error_number = save_raster_image_to_file ( symbol , image_height , image_width , pixelbuf , rotate_angle ,
file_type ) ;
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if ( rotate_angle | | file_type ! = OUT_BUFFER | | ! ( symbol - > output_options & OUT_BUFFER_INTERMEDIATE ) ) {
free ( pixelbuf ) ;
}
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}
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return error_number ;
}
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INTERNAL int plot_raster ( struct zint_symbol * symbol , int rotate_angle , int file_type ) {
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int error ;
# ifdef NO_PNG
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if ( file_type = = OUT_PNG_FILE ) {
strcpy ( symbol - > errtxt , " 660: PNG format disabled at compile time " ) ;
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return ZINT_ERROR_INVALID_OPTION ;
}
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# endif /* NO_PNG */
2016-08-09 01:18:55 +03:00
2020-07-15 21:00:12 +03:00
error = output_check_colour_options ( symbol ) ;
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if ( error ! = 0 ) {
return error ;
}
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if ( symbol - > symbology = = BARCODE_MAXICODE ) {
error = plot_raster_maxicode ( symbol , rotate_angle , file_type ) ;
} else if ( symbol - > output_options & BARCODE_DOTTY_MODE ) {
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error = plot_raster_dotty ( symbol , rotate_angle , file_type ) ;
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} else {
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error = plot_raster_default ( symbol , rotate_angle , file_type ) ;
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}
return error ;
}