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PLESSEY: add options NCR weighted mod-10, hide check digit(s) in HRT test suite: now runnable under MSVC 2019, 2017, 2015, MinGW/MSYS win32/README: update with MSVC 2019 and CMake instructions
200 lines
7.9 KiB
C
200 lines
7.9 KiB
C
/* bmp.c - Handles output to Windows Bitmap file */
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/*
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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
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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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
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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
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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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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*/
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/* vim: set ts=4 sw=4 et : */
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#include <errno.h>
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#include <stdio.h>
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#include "common.h"
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#include "bmp.h" /* Bitmap header structure */
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#ifdef _MSC_VER
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#include <io.h>
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#include <fcntl.h>
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#endif
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INTERNAL int bmp_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf) {
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int i, row, column;
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int row_size;
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int bits_per_pixel;
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int colour_count;
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unsigned int data_offset, data_size, file_size;
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unsigned char *bitmap_file_start, *bmp_posn;
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unsigned char *bitmap;
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FILE *bmp_file;
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bitmap_file_header_t file_header;
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bitmap_info_header_t info_header;
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color_ref_t bg_color_ref;
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color_ref_t fg_color_ref;
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color_ref_t ultra_color_ref[8];
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if (symbol->symbology == BARCODE_ULTRA) {
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bits_per_pixel = 4;
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colour_count = 9;
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} else {
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bits_per_pixel = 1;
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colour_count = 2;
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}
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row_size = 4 * ((bits_per_pixel * symbol->bitmap_width + 31) / 32);
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data_size = symbol->bitmap_height * row_size;
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data_offset = sizeof(bitmap_file_header_t) + sizeof(bitmap_info_header_t);
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data_offset += colour_count * sizeof(color_ref_t);
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file_size = data_offset + data_size;
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bitmap_file_start = (unsigned char *) malloc(file_size);
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if (bitmap_file_start == NULL) {
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strcpy(symbol->errtxt, "602: Out of memory");
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return ZINT_ERROR_MEMORY;
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}
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memset(bitmap_file_start, 0, file_size); /* Not required but keeps padding bytes consistent */
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bitmap = bitmap_file_start + data_offset;
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fg_color_ref.red = (16 * ctoi(symbol->fgcolour[0])) + ctoi(symbol->fgcolour[1]);
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fg_color_ref.green = (16 * ctoi(symbol->fgcolour[2])) + ctoi(symbol->fgcolour[3]);
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fg_color_ref.blue = (16 * ctoi(symbol->fgcolour[4])) + ctoi(symbol->fgcolour[5]);
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fg_color_ref.reserved = 0x00;
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bg_color_ref.red = (16 * ctoi(symbol->bgcolour[0])) + ctoi(symbol->bgcolour[1]);
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bg_color_ref.green = (16 * ctoi(symbol->bgcolour[2])) + ctoi(symbol->bgcolour[3]);
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bg_color_ref.blue = (16 * ctoi(symbol->bgcolour[4])) + ctoi(symbol->bgcolour[5]);
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bg_color_ref.reserved = 0x00;
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for (i = 0; i < 8; i++) {
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ultra_color_ref[i].red = colour_to_red(i + 1);
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ultra_color_ref[i].green = colour_to_green(i + 1);
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ultra_color_ref[i].blue = colour_to_blue(i + 1);
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ultra_color_ref[i].reserved = 0x00;
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}
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/* Pixel Plotting */
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if (symbol->symbology == BARCODE_ULTRA) {
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for (row = 0; row < symbol->bitmap_height; row++) {
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for (column = 0; column < symbol->bitmap_width; column++) {
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i = (column / 2) + (row * row_size);
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switch (*(pixelbuf + (symbol->bitmap_width * (symbol->bitmap_height - row - 1)) + column)) {
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case 'C': // Cyan
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bitmap[i] += 1 << (4 * (1 - (column % 2)));
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break;
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case 'B': // Blue
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bitmap[i] += 2 << (4 * (1 - (column % 2)));
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break;
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case 'M': // Magenta
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bitmap[i] += 3 << (4 * (1 - (column % 2)));
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break;
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case 'R': // Red
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bitmap[i] += 4 << (4 * (1 - (column % 2)));
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break;
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case 'Y': // Yellow
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bitmap[i] += 5 << (4 * (1 - (column % 2)));
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break;
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case 'G': // Green
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bitmap[i] += 6 << (4 * (1 - (column % 2)));
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break;
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case 'K': // Black
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bitmap[i] += 7 << (4 * (1 - (column % 2)));
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break;
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case 'W': // White
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bitmap[i] += 8 << (4 * (1 - (column % 2)));
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break;
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}
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}
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}
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} else {
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for (row = 0; row < symbol->bitmap_height; row++) {
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for (column = 0; column < symbol->bitmap_width; column++) {
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i = (column / 8) + (row * row_size);
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if ((*(pixelbuf + (symbol->bitmap_width * (symbol->bitmap_height - row - 1)) + column)) == '1') {
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bitmap[i] += (0x01 << (7 - (column % 8)));
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}
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}
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}
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}
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symbol->bitmap_byte_length = data_size;
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file_header.header_field = 0x4d42; // "BM"
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file_header.file_size = file_size;
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file_header.reserved = 0;
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file_header.data_offset = data_offset;
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info_header.header_size = sizeof(bitmap_info_header_t);
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info_header.width = symbol->bitmap_width;
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info_header.height = symbol->bitmap_height;
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info_header.colour_planes = 1;
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info_header.bits_per_pixel = bits_per_pixel;
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info_header.compression_method = 0; // BI_RGB
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info_header.image_size = 0;
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info_header.horiz_res = 0;
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info_header.vert_res = 0;
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info_header.colours = colour_count;
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info_header.important_colours = colour_count;
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bmp_posn = bitmap_file_start;
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memcpy(bitmap_file_start, &file_header, sizeof(bitmap_file_header_t));
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bmp_posn += sizeof(bitmap_file_header_t);
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memcpy(bmp_posn, &info_header, sizeof(bitmap_info_header_t));
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bmp_posn += sizeof(bitmap_info_header_t);
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memcpy(bmp_posn, &bg_color_ref, sizeof(color_ref_t));
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if (symbol->symbology == BARCODE_ULTRA) {
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for (i = 0; i < 8; i++) {
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bmp_posn += sizeof(color_ref_t);
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memcpy(bmp_posn, &ultra_color_ref[i], sizeof(color_ref_t));
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}
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} else {
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bmp_posn += sizeof(color_ref_t);
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memcpy(bmp_posn, &fg_color_ref, sizeof(color_ref_t));
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}
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/* Open output file in binary mode */
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if ((symbol->output_options & BARCODE_STDOUT) != 0) {
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#ifdef _MSC_VER
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if (-1 == _setmode(_fileno(stdout), _O_BINARY)) {
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sprintf(symbol->errtxt, "600: Can't open output file (%d: %.30s)", errno, strerror(errno));
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free(bitmap_file_start);
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return ZINT_ERROR_FILE_ACCESS;
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}
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#endif
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bmp_file = stdout;
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} else {
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if (!(bmp_file = fopen(symbol->outfile, "wb"))) {
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free(bitmap_file_start);
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sprintf(symbol->errtxt, "601: Can't open output file (%d: %.30s)", errno, strerror(errno));
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return ZINT_ERROR_FILE_ACCESS;
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}
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}
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fwrite(bitmap_file_start, file_header.file_size, 1, bmp_file);
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fclose(bmp_file);
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free(bitmap_file_start);
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return 0;
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}
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