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Better compression for Ultracode in BMP

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Also corrects colour shifting bug
File size is still bigger than it needs to be for Ultracode, but now uses 4bpp
This commit is contained in:
Robin Stuart
2020-08-12 13:19:56 +01:00
parent 20f767c4b6
commit b5e27d3e0b
5 changed files with 80 additions and 95 deletions
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48
backend/emf.c
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@ -42,51 +42,6 @@
#include "common.h"
#include "emf.h"
int colour_to_red(int colour) {
int return_val = 0;
switch(colour) {
case 8: // White
case 3: // Magenta
case 4: // Red
case 5: // Yellow
return_val = 255;
break;
}
return return_val;
}
int colour_to_green(int colour) {
int return_val = 0;
switch(colour) {
case 8: // White
case 1: // Cyan
case 5: // Yellow
case 6: // Green
return_val = 255;
break;
}
return return_val;
}
int colour_to_blue(int colour) {
int return_val = 0;
switch(colour) {
case 8: // White
case 1: // Cyan
case 2: // Blue
case 3: // Magenta
return_val = 255;
break;
}
return return_val;
}
static int count_rectangles(struct zint_symbol *symbol) {
int rectangles = 0;
struct zint_vector_rect *rect;
@ -617,18 +572,15 @@ INTERNAL int emf_plot(struct zint_symbol *symbol) {
}
if (symbol->symbology == BARCODE_ULTRA) {
printf("Using Ultra draw\n");
for(i = 0; i < 8; i++) {
if (rectangle_count_bycolour[i]) {
fwrite(&emr_selectobject_colour[i], sizeof (emr_selectobject_t), 1, emf_file);
printf("colour %d\n", i);
rect = symbol->vector->rectangles;
this_rectangle = 0;
while (rect) {
if (rect->colour == i) {
fwrite(&rectangle[this_rectangle], sizeof (emr_rectangle_t), 1, emf_file);
printf("rect\n");
}
this_rectangle++;
rect = rect->next;