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wl 1562 (To improve RTree indexes)

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some changes to make code nicer


include/myisampack.h:
  mi_sint1korr and similar things added to do conversion in an
  uniform way
myisam/rt_index.c:
  'if' simplified
myisam/rt_mbr.c:
  some fixes to make code nicer and smaller
myisam/rt_test.c:
  some modifications to extend test
mysql-test/r/gis-rtree.result:
  result became slightly different because of changes made
This commit is contained in:
unknown
2004-06-02 19:11:57 +05:00
parent c690204c70
commit 21dea7fc0b
5 changed files with 264 additions and 278 deletions
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7
include/myisampack.h
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@ -21,6 +21,10 @@
better compression
*/
/* these two are for uniformity */
#define mi_sint1korr(A) (int8)(*A)
#define mi_uint1korr(A) (uint8)(*A)
#define mi_sint2korr(A) (int16) (((int16) ((uchar) (A)[1])) +\
((int16) ((int16) (A)[0]) << 8))
#define mi_sint3korr(A) ((int32) ((((uchar) (A)[0]) & 128) ? \
@ -75,6 +79,9 @@
(((uint32) ((uchar) (A)[0])) << 24))) <<\
32))
/* This one is for uniformity */
#define mi_int1store(T,A) *((uchar*)(T))= (uchar) (A)
#define mi_int2store(T,A) { uint def_temp= (uint) (A) ;\
*((uchar*) ((T)+1))= (uchar)(def_temp); \
*((uchar*) ((T)+0))= (uchar)(def_temp >> 8); }