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raster.c: check bounds on calculating block width for UPCA

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gitlost 2019-12-19 00:59:51 +00:00
parent bca82ecc0d
commit fa9af12fc6
2 changed files with 44 additions and 3 deletions
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6
backend/raster.c
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@ -837,7 +837,7 @@ static int plot_raster_default(struct zint_symbol *symbol, int rotate_angle, int
block_width = 0;
do {
block_width++;
} while ((i + block_width < symbol->width )&& module_is_set(symbol, this_row, i + block_width) == module_is_set(symbol, this_row, i));
} while ((i + block_width < symbol->width) && 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);
@ -949,7 +949,7 @@ static int plot_raster_default(struct zint_symbol *symbol, int rotate_angle, int
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));
} while ((i + block_width < symbol->width) && 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);
@ -968,7 +968,7 @@ static int plot_raster_default(struct zint_symbol *symbol, int rotate_angle, int
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));
} while ((i + block_width < symbol->width) && 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);