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- BMP/EMF/PCX/TIF: fix endianness on big-endian machines (note TIF

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now always written as little-endian - simplifies testing)
- READMEs: add date updated
This commit is contained in:
gitlost
2024-01-17 01:45:45 +00:00
parent cf04ac15b0
commit bead450f38
16 changed files with 317 additions and 265 deletions
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32
backend/bmp.c
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@@ -1,7 +1,7 @@
/* bmp.c - Handles output to Windows Bitmap file */
/*
libzint - the open source barcode library
Copyright (C) 2009-2023 Robin Stuart <rstuart114@gmail.com>
Copyright (C) 2009-2024 Robin Stuart <rstuart114@gmail.com>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
@@ -97,23 +97,23 @@ INTERNAL int bmp_pixel_plot(struct zint_symbol *symbol, const unsigned char *pix
return ZINT_ERROR_MEMORY;
}
file_header.header_field = 0x4d42; /* "BM" */
file_header.file_size = (uint32_t) file_size;
file_header.reserved = 0;
file_header.data_offset = (uint32_t) data_offset;
out_le_u16(file_header.header_field, 0x4d42); /* "BM" */
out_le_u32(file_header.file_size, file_size);
out_le_u32(file_header.reserved, 0);
out_le_u32(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;
out_le_u32(info_header.header_size, sizeof(bitmap_info_header_t));
out_le_i32(info_header.width, symbol->bitmap_width);
out_le_i32(info_header.height, symbol->bitmap_height);
out_le_u16(info_header.colour_planes, 1);
out_le_u16(info_header.bits_per_pixel, bits_per_pixel);
out_le_u32(info_header.compression_method, 0); /* BI_RGB */
out_le_u32(info_header.image_size, 0);
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;
out_le_i32(info_header.horiz_res, resolution);
out_le_i32(info_header.vert_res, resolution);
out_le_u32(info_header.colours, colour_count);
out_le_u32(info_header.important_colours, colour_count);
/* Open output file in binary mode */
if (!fm_open(fmp, symbol, "wb")) {