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Define TiffFieldType struct

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Abdelrahman Said
2024-04-20 18:26:42 +01:00
parent 8b3babb3ad
commit 3e0b1762d1
3 changed files with 30 additions and 16 deletions
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2
src/main.c
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@@ -32,7 +32,7 @@ int main(int argc, char *argv[]) {
printf("\t TAG: %04u (%s)\n", fields[i].tag, printf("\t TAG: %04u (%s)\n", fields[i].tag,
tag_names[fields[i].tag] ? tag_names[fields[i].tag] : "UNKNOWN"); tag_names[fields[i].tag] ? tag_names[fields[i].tag] : "UNKNOWN");
printf("\t TYPE: 0x%04x (%s)\n", fields[i].type, printf("\t TYPE: 0x%04x (%s)\n", fields[i].type,
filed_type_names[fields[i].type] ? filed_type_names[fields[i].type] filed_types[fields[i].type].name ? filed_types[fields[i].type].name
: "UNKNOWN"); : "UNKNOWN");
printf("\t COUNT: %04u\n", fields[i].count); printf("\t COUNT: %04u\n", fields[i].count);
printf("\tVAL/OFF: %04u\n", fields[i].value_offset); printf("\tVAL/OFF: %04u\n", fields[i].value_offset);

28
src/tiff_field_types.inc
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@@ -1,20 +1,20 @@
#ifdef TIFF_TYPE_LOOKUP #ifdef TIFF_TYPE_LOOKUP
#undef TIFF_TYPE #undef TIFF_TYPE
#define TIFF_TYPE(NAME, ID, VALUE) [VALUE] = NAME, #define TIFF_TYPE(NAME, ID, VALUE, BYTES) [VALUE] = (TiffFieldType){.name = NAME, .byte_count = BYTES},
#else #else
#undef TIFF_TYPE #undef TIFF_TYPE
#define TIFF_TYPE(NAME, ID, VALUE) ID = VALUE, #define TIFF_TYPE(NAME, ID, VALUE, BYTES) ID = VALUE,
#endif /* ifdef TIFF_TYPE_LOOKUP */ #endif /* ifdef TIFF_TYPE_LOOKUP */
TIFF_TYPE("UNSIGNED BYTE" , TIFF_ENTRY_BYTE , 0x0001) // 8-bit unsigned integer TIFF_TYPE("UNSIGNED BYTE" , TIFF_ENTRY_BYTE , 0x0001, 1) // 8-bit unsigned integer
TIFF_TYPE("ASCII" , TIFF_ENTRY_ASCII , 0x0002) // 8-bit byte that contains a 7-bit ASCII code; the last byte must be NUL (binary zero) TIFF_TYPE("ASCII" , TIFF_ENTRY_ASCII , 0x0002, 1) // 8-bit byte that contains a 7-bit ASCII code; the last byte must be NUL (binary zero)
TIFF_TYPE("UNSIGNED SHORT" , TIFF_ENTRY_SHORT , 0x0003) // 16-bit (2-byte) unsigned integer TIFF_TYPE("UNSIGNED SHORT" , TIFF_ENTRY_SHORT , 0x0003, 2) // 16-bit (2-byte) unsigned integer
TIFF_TYPE("UNSIGNED LONG" , TIFF_ENTRY_LONG , 0x0004) // 32-bit (4-byte) unsigned integer TIFF_TYPE("UNSIGNED LONG" , TIFF_ENTRY_LONG , 0x0004, 4) // 32-bit (4-byte) unsigned integer
TIFF_TYPE("UNSIGNED RATIONAL", TIFF_ENTRY_RATIONAL , 0x0005) // Two LONGs: the first represents the numerator of a fraction; the second, the denominator TIFF_TYPE("UNSIGNED RATIONAL", TIFF_ENTRY_RATIONAL , 0x0005, 8) // Two LONGs: the first represents the numerator of a fraction; the second, the denominator
TIFF_TYPE("SIGNED BYTE" , TIFF_ENTRY_SBYTE , 0x0006) // An 8-bit signed (twos-complement) integer TIFF_TYPE("SIGNED BYTE" , TIFF_ENTRY_SBYTE , 0x0006, 1) // An 8-bit signed (twos-complement) integer
TIFF_TYPE("UNDEFINED" , TIFF_ENTRY_UNDEFINED , 0x0007) // An 8-bit byte that may contain anything, depending on the definition of the field TIFF_TYPE("UNDEFINED" , TIFF_ENTRY_UNDEFINED , 0x0007, 1) // An 8-bit byte that may contain anything, depending on the definition of the field
TIFF_TYPE("SIGNED SHORT" , TIFF_ENTRY_SSHORT , 0x0008) // A 16-bit (2-byte) signed (twos-complement) integer TIFF_TYPE("SIGNED SHORT" , TIFF_ENTRY_SSHORT , 0x0008, 2) // A 16-bit (2-byte) signed (twos-complement) integer
TIFF_TYPE("SIGNED LONG" , TIFF_ENTRY_SLONG , 0x0009) // A 32-bit (4-byte) signed (twos-complement) integer TIFF_TYPE("SIGNED LONG" , TIFF_ENTRY_SLONG , 0x0009, 4) // A 32-bit (4-byte) signed (twos-complement) integer
TIFF_TYPE("SIGNED RATIONAL" , TIFF_ENTRY_SRATIONAL , 0x000a) // Two SLONG’s: the first represents the numerator of a fraction, the second the denominator TIFF_TYPE("SIGNED RATIONAL" , TIFF_ENTRY_SRATIONAL , 0x000a, 8) // Two SLONG’s: the first represents the numerator of a fraction, the second the denominator
TIFF_TYPE("FLOAT" , TIFF_ENTRY_FLOAT , 0x000b) // Single precision (4-byte) IEEE format TIFF_TYPE("FLOAT" , TIFF_ENTRY_FLOAT , 0x000b, 4) // Single precision (4-byte) IEEE format
TIFF_TYPE("DOUBLE" , TIFF_ENTRY_DOUBLE , 0x000c) // Double precision (8-byte) IEEE format TIFF_TYPE("DOUBLE" , TIFF_ENTRY_DOUBLE , 0x000c, 8) // Double precision (8-byte) IEEE format

16
src/tiffread.h
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@@ -1,6 +1,10 @@
#ifndef TIFFREAD_H #ifndef TIFFREAD_H
#define TIFFREAD_H #define TIFFREAD_H
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
#include "aliases.h" #include "aliases.h"
#define TAG_MAX_COUNT (UINT16_MAX * sizeof(const char *)) #define TAG_MAX_COUNT (UINT16_MAX * sizeof(const char *))
@@ -37,7 +41,13 @@ enum tiff_field_types {
#include "tiff_field_types.inc" #include "tiff_field_types.inc"
}; };
const char *filed_type_names[TYPE_MAX_COUNT] = { typedef struct field_type TiffFieldType;
struct field_type {
const char *name;
u16 byte_count;
};
TiffFieldType filed_types[TYPE_MAX_COUNT] = {
#define TIFF_TYPE_LOOKUP #define TIFF_TYPE_LOOKUP
#include "tiff_field_types.inc" #include "tiff_field_types.inc"
#undef TIFF_TYPE_LOOKUP #undef TIFF_TYPE_LOOKUP
@@ -84,4 +94,8 @@ enum tiff_photometric_interpretation {
}; };
// clang-format on // clang-format on
#ifdef __cplusplus
}
#endif // __cplusplus
#endif // !TIFFREAD_H #endif // !TIFFREAD_H