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Also replaced endian code, and packed the struct.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6571 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Tomas Salfischberger 2005-06-05 14:23:15 +00:00
parent b3c417b3aa
commit 08bccbfda7
1 changed files with 19 additions and 7 deletions
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26
tools/rdf2binary.c
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@ -30,20 +30,32 @@ This tool converts the rdf file to the binary data used in the dict plugin.
/* maximum word lenght, has to be the same in dict.c */ /* maximum word lenght, has to be the same in dict.c */
#define WORDLEN 32 #define WORDLEN 32
/* struckt packing */
#ifdef __GNUC__
#define STRUCT_PACKED __attribute__((packed))
#else
#define STRUCT_PACKED
#pragma pack (push, 2)
#endif
struct word struct word
{ {
char word[WORDLEN]; char word[WORDLEN];
long offset; long offset;
}; } STRUCT_PACKED;
/* convert offsets here, not on device. */ /* convert offsets here, not on device. */
long long_to_big_endian (void* value) long reverse (long N) {
{ unsigned char B[4];
unsigned char* bytes = (unsigned char*) value; B[0] = (N & 0x000000FF) >> 0;
return (long)bytes[0] | ((long)bytes[1] << 8) | B[1] = (N & 0x0000FF00) >> 8;
((long)bytes[2] << 16) | ((long)bytes[3] << 24); B[2] = (N & 0x00FF0000) >> 16;
B[3] = (N & 0xFF000000) >> 24;
return ((B[0] << 24) | (B[1] << 16) | (B[2] << 8) | (B[3] << 0));
} }
int main() int main()
{ {
FILE *in, *idx_out, *desc_out; FILE *in, *idx_out, *desc_out;
@ -77,7 +89,7 @@ int main()
/* We will null-terminate the words */ /* We will null-terminate the words */
strncpy(w.word, word, WORDLEN - 1); strncpy(w.word, word, WORDLEN - 1);
w.offset = long_to_big_endian(&cur_offset); w.offset = reverse(cur_offset);
fwrite(&w, sizeof(struct word), 1, idx_out); fwrite(&w, sizeof(struct word), 1, idx_out);
while (1) while (1)