mirror of
https://github.com/woo-j/zint.git
synced 2024-12-24 17:34:05 +03:00
Add dot (circle) plotting for raster (PNG/GIF/PCX/BMP) images
This commit is contained in:
Robin Stuart
parent
30b8bebf82
commit
498fd4151d
349
backend/raster.c
349
backend/raster.c
@ -43,66 +43,38 @@
|
||||
#include <malloc.h>
|
||||
#endif /* _MSC_VER */
|
||||
|
||||
#include "maxihex.h" /* Maxicode shapes */
|
||||
#include "font.h" /* Font for human readable text */
|
||||
#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);
|
||||
extern int pcx_pixel_plot(struct zint_symbol *symbol, int image_height, int image_width, char *pixelbuf, int rotate_angle);
|
||||
extern int gif_pixel_plot(struct zint_symbol *symbol, int image_height, int image_width, char *pixelbuf, int rotate_angle);
|
||||
extern int gif_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));
|
||||
}
|
||||
}
|
||||
|
||||
switch(image_type) {
|
||||
switch (image_type) {
|
||||
case OUT_PNG_FILE:
|
||||
#ifndef NO_PNG
|
||||
error_number = png_pixel_plot(symbol, scale_height, scale_width, scaled_pixelbuf, rotate_angle);
|
||||
error_number = png_pixel_plot(symbol, image_height, image_width, pixelbuf, rotate_angle);
|
||||
#else
|
||||
return ZINT_ERROR_INVALID_OPTION;
|
||||
#endif
|
||||
break;
|
||||
case OUT_PCX_FILE:
|
||||
error_number = pcx_pixel_plot(symbol, scale_height, scale_width, scaled_pixelbuf, rotate_angle);
|
||||
error_number = pcx_pixel_plot(symbol, image_height, image_width, pixelbuf, rotate_angle);
|
||||
break;
|
||||
case OUT_GIF_FILE:
|
||||
error_number = gif_pixel_plot(symbol, image_height, image_width, pixelbuf, rotate_angle);
|
||||
break;
|
||||
case OUT_GIF_FILE:
|
||||
error_number = gif_pixel_plot(symbol, scale_height, scale_width, scaled_pixelbuf, rotate_angle);
|
||||
break;
|
||||
default:
|
||||
error_number = bmp_pixel_plot(symbol, scale_height, scale_width, scaled_pixelbuf, rotate_angle);
|
||||
error_number = bmp_pixel_plot(symbol, image_height, image_width, pixelbuf, rotate_angle);
|
||||
break;
|
||||
}
|
||||
|
||||
free(scaled_pixelbuf);
|
||||
|
||||
return error_number;
|
||||
}
|
||||
|
||||
@ -186,92 +158,92 @@ void draw_letter(char *pixelbuf, unsigned char letter, int xposn, int yposn, int
|
||||
} else {
|
||||
glyph_no = letter - 33;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
switch (textflags) {
|
||||
case 1: // small font 5x9
|
||||
max_x = 5;
|
||||
max_y = 9;
|
||||
case 1: // small font 5x9
|
||||
max_x = 5;
|
||||
max_y = 9;
|
||||
|
||||
if (xposn + max_x >= image_width) {
|
||||
max_x = image_width - xposn - 1;
|
||||
}
|
||||
if (xposn + max_x >= image_width) {
|
||||
max_x = image_width - xposn - 1;
|
||||
}
|
||||
|
||||
if (yposn + max_y >= image_height) {
|
||||
max_y = image_height - yposn - 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;
|
||||
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;
|
||||
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 (xposn + max_x + 1 >= image_width) {
|
||||
max_x = image_width - xposn - 2;
|
||||
}
|
||||
|
||||
if (yposn + max_y >= image_height) {
|
||||
max_y = image_height - yposn - 1;
|
||||
}
|
||||
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';
|
||||
}
|
||||
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;
|
||||
}
|
||||
extra_dot = 0;
|
||||
}
|
||||
|
||||
++pixelPtr;
|
||||
}
|
||||
++pixelPtr;
|
||||
}
|
||||
|
||||
if (extra_dot) {
|
||||
*pixelPtr = '1';
|
||||
}
|
||||
if (extra_dot) {
|
||||
*pixelPtr = '1';
|
||||
}
|
||||
|
||||
linePtr += image_width;
|
||||
}
|
||||
}
|
||||
break;
|
||||
linePtr += image_width;
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
default: // regular font 7x15
|
||||
max_x = 7;
|
||||
max_y = 14;
|
||||
default: // regular font 7x15
|
||||
max_x = 7;
|
||||
max_y = 14;
|
||||
|
||||
if (xposn + max_x >= image_width) {
|
||||
max_x = image_width - xposn - 1;
|
||||
}
|
||||
if (xposn + max_x >= image_width) {
|
||||
max_x = image_width - xposn - 1;
|
||||
}
|
||||
|
||||
if (yposn + max_y >= image_height) {
|
||||
max_y = image_height - yposn - 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;
|
||||
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;
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -281,19 +253,19 @@ void draw_string(char *pixbuf, char input_string[], int xposn, int yposn, int te
|
||||
int i, string_length, string_left_hand, letter_width = 7;
|
||||
|
||||
switch (textflags) {
|
||||
case 1: // small font 5x9
|
||||
letter_width = 5;
|
||||
break;
|
||||
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;
|
||||
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;
|
||||
default: // regular font 7x15
|
||||
letter_width = 7;
|
||||
break;
|
||||
}
|
||||
|
||||
|
||||
string_length = strlen(input_string);
|
||||
string_left_hand = xposn - ((letter_width * string_length) / 2);
|
||||
|
||||
@ -309,6 +281,10 @@ int plot_raster_maxicode(struct zint_symbol *symbol, int rotate_angle, int data_
|
||||
char *pixelbuf;
|
||||
int error_number;
|
||||
int xoffset, yoffset;
|
||||
float scaler = symbol->scale;
|
||||
char *scaled_pixelbuf;
|
||||
int horiz, vert;
|
||||
int scale_width, scale_height;
|
||||
|
||||
xoffset = symbol->border_width + symbol->whitespace_width;
|
||||
yoffset = symbol->border_width;
|
||||
@ -355,7 +331,31 @@ int plot_raster_maxicode(struct zint_symbol *symbol, int rotate_angle, int data_
|
||||
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);
|
||||
|
||||
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));
|
||||
}
|
||||
}
|
||||
|
||||
error_number = save_raster_image_to_file(symbol, scale_height, scale_width, scaled_pixelbuf, rotate_angle, data_type);
|
||||
free(scaled_pixelbuf);
|
||||
free(pixelbuf);
|
||||
return error_number;
|
||||
}
|
||||
@ -399,6 +399,70 @@ void to_latin1(unsigned char source[], unsigned char preprocessed[]) {
|
||||
return;
|
||||
}
|
||||
|
||||
void draw_circle(char *pixelbuf, int image_width, int image_height, int x0, int y0, int radius) {
|
||||
int x, y;
|
||||
|
||||
for (y = -radius; y <= radius; y++) {
|
||||
for (x = -radius; x <= radius; x++) {
|
||||
if ((x * x) + (y * y) <= (radius * radius)) {
|
||||
if ((y + y0 >= 0) && (y + y0 < image_height)
|
||||
&& (x + x0 >= 0) && (x + x0 < image_width)) {
|
||||
*(pixelbuf + ((y + y0) * image_width) + (x + x0)) = '1';
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int plot_raster_dotty(struct zint_symbol *symbol, int rotate_angle, int data_type) {
|
||||
float scaler = 2 * symbol->scale;
|
||||
char *scaled_pixelbuf;
|
||||
int r, i;
|
||||
int scale_width, scale_height;
|
||||
int error_number = 0;
|
||||
int xoffset, yoffset, image_width, image_height;
|
||||
|
||||
symbol->height = symbol->rows; // This is true because only 2d matrix symbols are processed here
|
||||
|
||||
xoffset = symbol->border_width + symbol->whitespace_width;
|
||||
yoffset = symbol->border_width;
|
||||
image_width = symbol->width + xoffset + xoffset;
|
||||
image_height = symbol->height + yoffset + yoffset;
|
||||
|
||||
if (scaler < 2.0) {
|
||||
scaler = 2.0;
|
||||
}
|
||||
scale_width = (image_width * scaler) + 1;
|
||||
scale_height = (image_height * scaler) + 1;
|
||||
|
||||
/* 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';
|
||||
}
|
||||
}
|
||||
|
||||
/* Plot the body of the symbol to the pixel buffer */
|
||||
for (r = 0; r < symbol->rows; r++) {
|
||||
for (i = 0; i < symbol->width; i++) {
|
||||
if (module_is_set(symbol, r, i)) {
|
||||
draw_circle(scaled_pixelbuf, scale_width, scale_height,
|
||||
(int) ((i + xoffset) * scaler) + (scaler / 2.0),
|
||||
(int) ((r + yoffset) * scaler) + (scaler / 2.0),
|
||||
(int) (scaler / 2.0));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
error_number = save_raster_image_to_file(symbol, scale_height, scale_width, scaled_pixelbuf, rotate_angle, data_type);
|
||||
free(scaled_pixelbuf);
|
||||
|
||||
return error_number;
|
||||
}
|
||||
|
||||
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];
|
||||
@ -411,6 +475,10 @@ int plot_raster_default(struct zint_symbol *symbol, int rotate_angle, int data_t
|
||||
int error_number;
|
||||
int default_text_posn;
|
||||
int next_yposn;
|
||||
float scaler = symbol->scale;
|
||||
char *scaled_pixelbuf;
|
||||
int horiz, vert;
|
||||
int scale_width, scale_height;
|
||||
#ifndef _MSC_VER
|
||||
unsigned char local_text[ustrlen(symbol->text) + 1];
|
||||
#else
|
||||
@ -456,8 +524,7 @@ int plot_raster_default(struct zint_symbol *symbol, int rotate_angle, int data_t
|
||||
row_height = 0;
|
||||
if (symbol->output_options & SMALL_TEXT) {
|
||||
textflags = 1;
|
||||
}
|
||||
else if (symbol->output_options & BOLD_TEXT) {
|
||||
} else if (symbol->output_options & BOLD_TEXT) {
|
||||
textflags = 2;
|
||||
}
|
||||
|
||||
@ -537,7 +604,7 @@ int plot_raster_default(struct zint_symbol *symbol, int rotate_angle, int data_t
|
||||
} else {
|
||||
textoffset = 0;
|
||||
}
|
||||
|
||||
|
||||
xoffset = symbol->border_width + symbol->whitespace_width;
|
||||
yoffset = symbol->border_width;
|
||||
image_width = 2 * (symbol->width + xoffset + xoffset);
|
||||
@ -826,7 +893,31 @@ int plot_raster_default(struct zint_symbol *symbol, int rotate_angle, int data_t
|
||||
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);
|
||||
|
||||
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));
|
||||
}
|
||||
}
|
||||
|
||||
error_number = save_raster_image_to_file(symbol, scale_height, scale_width, scaled_pixelbuf, rotate_angle, data_type);
|
||||
free(scaled_pixelbuf);
|
||||
free(pixelbuf);
|
||||
return error_number;
|
||||
}
|
||||
@ -840,11 +931,15 @@ int plot_raster(struct zint_symbol *symbol, int rotate_angle, int file_type) {
|
||||
return ZINT_ERROR_INVALID_OPTION;
|
||||
}
|
||||
#endif /* NO_PNG */
|
||||
|
||||
if (symbol->symbology == BARCODE_MAXICODE) {
|
||||
error = plot_raster_maxicode(symbol, rotate_angle, file_type);
|
||||
|
||||
if (symbol->output_options &= BARCODE_DOTTY_MODE) {
|
||||
error = plot_raster_dotty(symbol, rotate_angle, file_type);
|
||||
} else {
|
||||
error = plot_raster_default(symbol, rotate_angle, file_type);
|
||||
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;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user