zint/backend/bmp.c

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2016-07-20 10:09:08 +12:00
/* bmp.c - Handles output to Windows Bitmap file */
/*
libzint - the open source barcode library
Copyright (C) 2009-2023 Robin Stuart <rstuart114@gmail.com>
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.
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.
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.
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
SUCH DAMAGE.
*/
/* SPDX-License-Identifier: BSD-3-Clause */
#include <errno.h>
- API: add new zint_symbol `dpmm` field for output resolution (BMP/ EMF/PCX/PNG/TIF only, i.e. excluding EPS, GIF & SVG) - Add support for specifying scale by X-dimension and resolution with new option `--scalexdimdp` for CLI/Tcl & new API function `ZBarcode_Scale_From_XdimDp()` (+ `ZBarcode_XdimDp_From_Scale()` & `ZBarcode_Default_Xdim()`) and new GUI popup; manual: document - BMP/EMF/PCX/PNG/TIF: use new `dpmm` resolution field (for EMF following Inkscape) - backend_qt: add `dpmm()`, `vectorWidth()`, `vectorHeight()`, `noPng()`, `getVersion()`, `takesGS1AIData()`, & `XdimDp` stuff incl. new `QZintXdimDp` struct for passing around scale vars & use in `getAsCLI()`; add comments - Raise `scale` limit to 200 (from 100) to allow for large dpmm - output: create directories & subdirectories as necessary for output path using new function `out_fopen()` and use in BMP/EMF/ EPS/GIF/PCX/PNG/SVG/TIF - DPLEIT/DPIDENT: format HRT according to (incomplete) documentation, and set default height to 72X (from 50X) - CODE128B renamed to CODE128AB as can use subsets A and/or B - CODABAR: fix minimum height calc - EMF: fix indexing of handles (zero-based not 1-based) - GUI: fix symbology zap (previous technique of clearing and re-loading settings without doing a sync no longer works); fix UPCEAN guard descent enable - MAILMARK: better error message if input < 14 characters - GUI: add "Default" button for DAFT tracker ratio & enable/disable various default buttons; use new `takesGS1AIData()` to enable/disable GS1-specific checkboxes - CLI: use new `validate_float()` to parse float options (7 significant digits allowed only, no scientific notation) - DATAMATRIX/GRIDMATRIX/PDF417/QR/ULTRA: micro-optimize structapp ID parse - library/CLI: fiddle with static asserts (make CHAR_BIT sensitive, supposedly) - win32/README: update building libpng (assembly removed) - README.linux: document incompatibility of Qt6 >= 6.3 - manual: expand Barcode Studio waffle - test suite: change range separator to hyphen and allow multiple excludes
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#include <math.h>
#include <stdio.h>
#ifdef _MSC_VER
#include <io.h>
#include <fcntl.h>
#endif
#include "common.h"
- API: add new zint_symbol `dpmm` field for output resolution (BMP/ EMF/PCX/PNG/TIF only, i.e. excluding EPS, GIF & SVG) - Add support for specifying scale by X-dimension and resolution with new option `--scalexdimdp` for CLI/Tcl & new API function `ZBarcode_Scale_From_XdimDp()` (+ `ZBarcode_XdimDp_From_Scale()` & `ZBarcode_Default_Xdim()`) and new GUI popup; manual: document - BMP/EMF/PCX/PNG/TIF: use new `dpmm` resolution field (for EMF following Inkscape) - backend_qt: add `dpmm()`, `vectorWidth()`, `vectorHeight()`, `noPng()`, `getVersion()`, `takesGS1AIData()`, & `XdimDp` stuff incl. new `QZintXdimDp` struct for passing around scale vars & use in `getAsCLI()`; add comments - Raise `scale` limit to 200 (from 100) to allow for large dpmm - output: create directories & subdirectories as necessary for output path using new function `out_fopen()` and use in BMP/EMF/ EPS/GIF/PCX/PNG/SVG/TIF - DPLEIT/DPIDENT: format HRT according to (incomplete) documentation, and set default height to 72X (from 50X) - CODE128B renamed to CODE128AB as can use subsets A and/or B - CODABAR: fix minimum height calc - EMF: fix indexing of handles (zero-based not 1-based) - GUI: fix symbology zap (previous technique of clearing and re-loading settings without doing a sync no longer works); fix UPCEAN guard descent enable - MAILMARK: better error message if input < 14 characters - GUI: add "Default" button for DAFT tracker ratio & enable/disable various default buttons; use new `takesGS1AIData()` to enable/disable GS1-specific checkboxes - CLI: use new `validate_float()` to parse float options (7 significant digits allowed only, no scientific notation) - DATAMATRIX/GRIDMATRIX/PDF417/QR/ULTRA: micro-optimize structapp ID parse - library/CLI: fiddle with static asserts (make CHAR_BIT sensitive, supposedly) - win32/README: update building libpng (assembly removed) - README.linux: document incompatibility of Qt6 >= 6.3 - manual: expand Barcode Studio waffle - test suite: change range separator to hyphen and allow multiple excludes
2022-12-03 10:39:01 +13:00
#include "output.h"
#include "bmp.h" /* Bitmap header structure */
INTERNAL int bmp_pixel_plot(struct zint_symbol *symbol, const unsigned char *pixelbuf) {
int i, row, column;
int row_size;
int bits_per_pixel;
int colour_count;
- API: add new zint_symbol `dpmm` field for output resolution (BMP/ EMF/PCX/PNG/TIF only, i.e. excluding EPS, GIF & SVG) - Add support for specifying scale by X-dimension and resolution with new option `--scalexdimdp` for CLI/Tcl & new API function `ZBarcode_Scale_From_XdimDp()` (+ `ZBarcode_XdimDp_From_Scale()` & `ZBarcode_Default_Xdim()`) and new GUI popup; manual: document - BMP/EMF/PCX/PNG/TIF: use new `dpmm` resolution field (for EMF following Inkscape) - backend_qt: add `dpmm()`, `vectorWidth()`, `vectorHeight()`, `noPng()`, `getVersion()`, `takesGS1AIData()`, & `XdimDp` stuff incl. new `QZintXdimDp` struct for passing around scale vars & use in `getAsCLI()`; add comments - Raise `scale` limit to 200 (from 100) to allow for large dpmm - output: create directories & subdirectories as necessary for output path using new function `out_fopen()` and use in BMP/EMF/ EPS/GIF/PCX/PNG/SVG/TIF - DPLEIT/DPIDENT: format HRT according to (incomplete) documentation, and set default height to 72X (from 50X) - CODE128B renamed to CODE128AB as can use subsets A and/or B - CODABAR: fix minimum height calc - EMF: fix indexing of handles (zero-based not 1-based) - GUI: fix symbology zap (previous technique of clearing and re-loading settings without doing a sync no longer works); fix UPCEAN guard descent enable - MAILMARK: better error message if input < 14 characters - GUI: add "Default" button for DAFT tracker ratio & enable/disable various default buttons; use new `takesGS1AIData()` to enable/disable GS1-specific checkboxes - CLI: use new `validate_float()` to parse float options (7 significant digits allowed only, no scientific notation) - DATAMATRIX/GRIDMATRIX/PDF417/QR/ULTRA: micro-optimize structapp ID parse - library/CLI: fiddle with static asserts (make CHAR_BIT sensitive, supposedly) - win32/README: update building libpng (assembly removed) - README.linux: document incompatibility of Qt6 >= 6.3 - manual: expand Barcode Studio waffle - test suite: change range separator to hyphen and allow multiple excludes
2022-12-03 10:39:01 +13:00
int resolution;
unsigned int data_offset, data_size, file_size;
unsigned char *bitmap_file_start, *bmp_posn;
unsigned char *bitmap;
FILE *bmp_file;
bitmap_file_header_t file_header;
bitmap_info_header_t info_header;
color_ref_t bg;
color_ref_t fg;
color_ref_t palette[8];
int ultra_fg_index = 9;
unsigned char map[128];
const int output_to_stdout = symbol->output_options & BARCODE_STDOUT; /* Suppress gcc -fanalyzer warning */
(void) out_colour_get_rgb(symbol->fgcolour, &fg.red, &fg.green, &fg.blue, NULL /*alpha*/);
fg.reserved = 0x00;
(void) out_colour_get_rgb(symbol->bgcolour, &bg.red, &bg.green, &bg.blue, NULL /*alpha*/);
bg.reserved = 0x00;
if (symbol->symbology == BARCODE_ULTRA) {
static const unsigned char ultra_chars[8] = { 'C', 'B', 'M', 'R', 'Y', 'G', 'K', 'W' };
for (i = 0; i < 8; i++) {
out_colour_char_to_rgb(ultra_chars[i], &palette[i].red, &palette[i].green, &palette[i].blue);
palette[i].reserved = 0x00;
if (memcmp(&palette[i], &fg, sizeof(fg)) == 0) {
ultra_fg_index = i + 1;
}
map[ultra_chars[i]] = i + 1;
}
bits_per_pixel = 4;
colour_count = ultra_fg_index == 9 ? 10 : 9;
map['0'] = 0;
map['1'] = ultra_fg_index;
} else {
bits_per_pixel = 1;
colour_count = 2;
map['0'] = 0;
map['1'] = 0x80;
}
row_size = 4 * ((bits_per_pixel * symbol->bitmap_width + 31) / 32);
data_size = symbol->bitmap_height * row_size;
data_offset = sizeof(bitmap_file_header_t) + sizeof(bitmap_info_header_t);
data_offset += colour_count * sizeof(color_ref_t);
file_size = data_offset + data_size;
bitmap_file_start = (unsigned char *) malloc(file_size);
if (bitmap_file_start == NULL) {
strcpy(symbol->errtxt, "602: Insufficient memory for BMP file buffer");
return ZINT_ERROR_MEMORY;
}
memset(bitmap_file_start, 0, file_size); /* Not required but keeps padding bytes consistent */
bitmap = bitmap_file_start + data_offset;
/* Pixel Plotting */
if (bits_per_pixel == 4) {
for (row = 0; row < symbol->bitmap_height; row++) {
const unsigned char *pb = pixelbuf + (symbol->bitmap_width * (symbol->bitmap_height - row - 1));
for (column = 0; column < symbol->bitmap_width; column++) {
bitmap[(column >> 1) + (row * row_size)] |= map[pb[column]] << (!(column & 1) << 2);
}
}
} else { /* bits_per_pixel == 1 */
for (row = 0; row < symbol->bitmap_height; row++) {
const unsigned char *pb = pixelbuf + (symbol->bitmap_width * (symbol->bitmap_height - row - 1));
for (column = 0; column < symbol->bitmap_width; column++) {
bitmap[(column >> 3) + (row * row_size)] |= map[pb[column]] >> (column & 7);
}
}
}
file_header.header_field = 0x4d42; /* "BM" */
file_header.file_size = file_size;
file_header.reserved = 0;
file_header.data_offset = data_offset;
info_header.header_size = sizeof(bitmap_info_header_t);
info_header.width = symbol->bitmap_width;
info_header.height = symbol->bitmap_height;
info_header.colour_planes = 1;
info_header.bits_per_pixel = bits_per_pixel;
info_header.compression_method = 0; /* BI_RGB */
info_header.image_size = 0;
- API: add new zint_symbol `dpmm` field for output resolution (BMP/ EMF/PCX/PNG/TIF only, i.e. excluding EPS, GIF & SVG) - Add support for specifying scale by X-dimension and resolution with new option `--scalexdimdp` for CLI/Tcl & new API function `ZBarcode_Scale_From_XdimDp()` (+ `ZBarcode_XdimDp_From_Scale()` & `ZBarcode_Default_Xdim()`) and new GUI popup; manual: document - BMP/EMF/PCX/PNG/TIF: use new `dpmm` resolution field (for EMF following Inkscape) - backend_qt: add `dpmm()`, `vectorWidth()`, `vectorHeight()`, `noPng()`, `getVersion()`, `takesGS1AIData()`, & `XdimDp` stuff incl. new `QZintXdimDp` struct for passing around scale vars & use in `getAsCLI()`; add comments - Raise `scale` limit to 200 (from 100) to allow for large dpmm - output: create directories & subdirectories as necessary for output path using new function `out_fopen()` and use in BMP/EMF/ EPS/GIF/PCX/PNG/SVG/TIF - DPLEIT/DPIDENT: format HRT according to (incomplete) documentation, and set default height to 72X (from 50X) - CODE128B renamed to CODE128AB as can use subsets A and/or B - CODABAR: fix minimum height calc - EMF: fix indexing of handles (zero-based not 1-based) - GUI: fix symbology zap (previous technique of clearing and re-loading settings without doing a sync no longer works); fix UPCEAN guard descent enable - MAILMARK: better error message if input < 14 characters - GUI: add "Default" button for DAFT tracker ratio & enable/disable various default buttons; use new `takesGS1AIData()` to enable/disable GS1-specific checkboxes - CLI: use new `validate_float()` to parse float options (7 significant digits allowed only, no scientific notation) - DATAMATRIX/GRIDMATRIX/PDF417/QR/ULTRA: micro-optimize structapp ID parse - library/CLI: fiddle with static asserts (make CHAR_BIT sensitive, supposedly) - win32/README: update building libpng (assembly removed) - README.linux: document incompatibility of Qt6 >= 6.3 - manual: expand Barcode Studio waffle - test suite: change range separator to hyphen and allow multiple excludes
2022-12-03 10:39:01 +13:00
resolution = symbol->dpmm ? (int) roundf(stripf(symbol->dpmm * 1000.0f)) : 0; /* pixels per metre */
info_header.horiz_res = resolution;
info_header.vert_res = resolution;
info_header.colours = colour_count;
info_header.important_colours = colour_count;
bmp_posn = bitmap_file_start;
memcpy(bitmap_file_start, &file_header, sizeof(bitmap_file_header_t));
bmp_posn += sizeof(bitmap_file_header_t);
memcpy(bmp_posn, &info_header, sizeof(bitmap_info_header_t));
bmp_posn += sizeof(bitmap_info_header_t);
memcpy(bmp_posn, &bg, sizeof(color_ref_t));
bmp_posn += sizeof(color_ref_t);
if (bits_per_pixel == 4) {
for (i = 0; i < 8; i++) {
memcpy(bmp_posn, &palette[i], sizeof(color_ref_t));
bmp_posn += sizeof(color_ref_t);
}
if (ultra_fg_index == 9) {
memcpy(bmp_posn, &fg, sizeof(color_ref_t));
/* bmp_posn += sizeof(color_ref_t); */ /* Not needed as long as last */
}
} else {
memcpy(bmp_posn, &fg, sizeof(color_ref_t));
/* bmp_posn += sizeof(color_ref_t); */ /* Not needed as long as last */
}
/* Open output file in binary mode */
if (output_to_stdout) {
#ifdef _MSC_VER
if (-1 == _setmode(_fileno(stdout), _O_BINARY)) {
sprintf(symbol->errtxt, "600: Could not set stdout to binary (%d: %.30s)", errno, strerror(errno));
free(bitmap_file_start);
return ZINT_ERROR_FILE_ACCESS;
}
#endif
bmp_file = stdout;
} else {
- API: add new zint_symbol `dpmm` field for output resolution (BMP/ EMF/PCX/PNG/TIF only, i.e. excluding EPS, GIF & SVG) - Add support for specifying scale by X-dimension and resolution with new option `--scalexdimdp` for CLI/Tcl & new API function `ZBarcode_Scale_From_XdimDp()` (+ `ZBarcode_XdimDp_From_Scale()` & `ZBarcode_Default_Xdim()`) and new GUI popup; manual: document - BMP/EMF/PCX/PNG/TIF: use new `dpmm` resolution field (for EMF following Inkscape) - backend_qt: add `dpmm()`, `vectorWidth()`, `vectorHeight()`, `noPng()`, `getVersion()`, `takesGS1AIData()`, & `XdimDp` stuff incl. new `QZintXdimDp` struct for passing around scale vars & use in `getAsCLI()`; add comments - Raise `scale` limit to 200 (from 100) to allow for large dpmm - output: create directories & subdirectories as necessary for output path using new function `out_fopen()` and use in BMP/EMF/ EPS/GIF/PCX/PNG/SVG/TIF - DPLEIT/DPIDENT: format HRT according to (incomplete) documentation, and set default height to 72X (from 50X) - CODE128B renamed to CODE128AB as can use subsets A and/or B - CODABAR: fix minimum height calc - EMF: fix indexing of handles (zero-based not 1-based) - GUI: fix symbology zap (previous technique of clearing and re-loading settings without doing a sync no longer works); fix UPCEAN guard descent enable - MAILMARK: better error message if input < 14 characters - GUI: add "Default" button for DAFT tracker ratio & enable/disable various default buttons; use new `takesGS1AIData()` to enable/disable GS1-specific checkboxes - CLI: use new `validate_float()` to parse float options (7 significant digits allowed only, no scientific notation) - DATAMATRIX/GRIDMATRIX/PDF417/QR/ULTRA: micro-optimize structapp ID parse - library/CLI: fiddle with static asserts (make CHAR_BIT sensitive, supposedly) - win32/README: update building libpng (assembly removed) - README.linux: document incompatibility of Qt6 >= 6.3 - manual: expand Barcode Studio waffle - test suite: change range separator to hyphen and allow multiple excludes
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if (!(bmp_file = out_fopen(symbol->outfile, "wb"))) {
sprintf(symbol->errtxt, "601: Could not open output file (%d: %.30s)", errno, strerror(errno));
free(bitmap_file_start);
return ZINT_ERROR_FILE_ACCESS;
}
}
fwrite(bitmap_file_start, file_header.file_size, 1, bmp_file);
if (ferror(bmp_file)) {
sprintf(symbol->errtxt, "603: Incomplete write to output (%d: %.30s)", errno, strerror(errno));
free(bitmap_file_start);
if (!output_to_stdout) {
(void) fclose(bmp_file);
}
return ZINT_ERROR_FILE_WRITE;
}
if (output_to_stdout) {
if (fflush(bmp_file) != 0) {
sprintf(symbol->errtxt, "604: Incomplete flush to output (%d: %.30s)", errno, strerror(errno));
free(bitmap_file_start);
return ZINT_ERROR_FILE_WRITE;
}
} else {
if (fclose(bmp_file) != 0) {
sprintf(symbol->errtxt, "605: Failure on closing output file (%d: %.30s)", errno, strerror(errno));
free(bitmap_file_start);
return ZINT_ERROR_FILE_WRITE;
}
}
free(bitmap_file_start);
return 0;
}
/* vim: set ts=4 sw=4 et : */