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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
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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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38
backend/output.h
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@ -1,7 +1,7 @@
/* output.h - Common routines for raster/vector */
/*
libzint - the open source barcode library
Copyright (C) 2020-2023 Robin Stuart <rstuart114@gmail.com>
Copyright (C) 2020-2024 Robin Stuart <rstuart114@gmail.com>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
@ -77,6 +77,42 @@ INTERNAL FILE *out_fopen(const char filename[256], const char *mode);
INTERNAL FILE *out_win_fopen(const char *filename, const char *mode);
#endif
/* Little-endian output */
#define out_le_u16(b, n) do { \
unsigned char *bp = (unsigned char *) &(b); \
uint16_t u16 = (uint16_t) (n); \
bp[0] = (unsigned char) (u16 & 0xFF); \
bp[1] = (unsigned char) ((u16 >> 8) & 0xFF); \
} while (0)
#define out_le_u32(b, n) do { \
unsigned char *bp = (unsigned char *) &(b); \
uint32_t u32 = (uint32_t) (n); \
bp[0] = (unsigned char) (u32 & 0xFF); \
bp[1] = (unsigned char) ((u32 >> 8) & 0xFF); \
bp[2] = (unsigned char) ((u32 >> 16) & 0xFF); \
bp[3] = (unsigned char) ((u32 >> 24) & 0xFF); \
} while (0)
#define out_le_i32(b, n) do { \
unsigned char *bp = (unsigned char *) &(b); \
int32_t i32 = (int32_t) (n); \
bp[0] = (unsigned char) (i32 & 0xFF); \
bp[1] = (unsigned char) ((i32 >> 8) & 0xFF); \
bp[2] = (unsigned char) ((i32 >> 16) & 0xFF); \
bp[3] = (unsigned char) ((i32 >> 24) & 0xFF); \
} while (0)
#define out_le_float(b, n) do { \
unsigned char *bp = (unsigned char *) &(b); \
float f = n; \
uint32_t *p_u32 = (uint32_t *) &(f); \
bp[0] = (unsigned char) (*p_u32 & 0xFF); \
bp[1] = (unsigned char) ((*p_u32 >> 8) & 0xFF); \
bp[2] = (unsigned char) ((*p_u32 >> 16) & 0xFF); \
bp[3] = (unsigned char) ((*p_u32 >> 24) & 0xFF); \
} while (0)
#ifdef __cplusplus
}
#endif /* __cplusplus */