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[rails.git] / db / functions / maptile.c

diff --git a/db/functions/maptile.c b/db/functions/maptile.c
index ed83bcce29f1f88605c59163d2b470f42ccc4ad3..358a3ba75247602f05d52d4debc48433cf5fee34 100644 (file)
--- a/db/functions/maptile.c
+++ b/db/functions/maptile.c
@@ -1,81 +1,22 @@
-#ifndef USE_MYSQL
-#ifndef USE_PGSQL
-#error One of USE_MYSQL or USE_PGSQL must be defined
-#endif
-#endif
-

 #include <math.h>
 #include <math.h>

+#include <postgres.h>
+#include <fmgr.h>

 
 

-/* The real maptile-for-point functionality is here */
-
-static long long internal_maptile_for_point(double lat, double lon, long long zoom)
+Datum
+maptile_for_point(PG_FUNCTION_ARGS)

 {
 {

-   double       scale = pow(2, zoom);
-   double       r_per_d = M_PI / 180;
+   double lat = PG_GETARG_INT64(0) / 10000000.0;
+   double lon = PG_GETARG_INT64(1) / 10000000.0;
+   int zoom = PG_GETARG_INT32(2);
+   double scale = pow(2, zoom);
+   double r_per_d = M_PI / 180;

    unsigned int x;
    unsigned int y;
 
    x = floor((lon + 180.0) * scale / 360.0);
    y = floor((1 - log(tan(lat * r_per_d) + 1.0 / cos(lat * r_per_d)) / M_PI) * scale / 2.0);
 
    unsigned int x;
    unsigned int y;
 
    x = floor((lon + 180.0) * scale / 360.0);
    y = floor((1 - log(tan(lat * r_per_d) + 1.0 / cos(lat * r_per_d)) / M_PI) * scale / 2.0);
 

-   return (x << zoom) | y;
-}
-
-#ifdef USE_MYSQL
-#ifdef USE_PGSQL
-#error ONLY one of USE_MYSQL and USE_PGSQL should be defined
-#endif
-
-#include <my_global.h>
-#include <my_sys.h>
-#include <m_string.h>
-#include <mysql.h>
-
-my_bool maptile_for_point_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
-{
-   if ( args->arg_count != 3 ||
-        args->arg_type[0] != INT_RESULT ||
-        args->arg_type[1] != INT_RESULT ||
-        args->arg_type[2] != INT_RESULT )
-   {
-      strcpy( message, "Your maptile_for_point arguments are bogus!" );
-      return 1;
-   }
-
-   return 0;
-}
-
-void maptile_for_point_deinit(UDF_INIT *initid)
-{
-   return;
-}
-
-long long maptile_for_point(UDF_INIT *initid, UDF_ARGS *args, char *is_null, char *error)
-{
-   double       lat = *(long long *)args->args[0] / 10000000.0;
-   double       lon = *(long long *)args->args[1] / 10000000.0;
-   long long    zoom = *(long long *)args->args[2];
-
-   return internal_maptile_for_point(lat, lon, zoom);
-}
-#endif
-
-#ifdef USE_PGSQL
-#ifdef USE_MYSQL
-#error ONLY one of USE_MYSQL and USE_PGSQL should be defined
-#endif
-
-#include <postgres.h>
-#include <fmgr.h>
-
-Datum
-maptile_for_point(PG_FUNCTION_ARGS)
-{
-  double lat = PG_GETARG_INT64(0) / 10000000.0;
-  double lon = PG_GETARG_INT64(1) / 10000000.0;
-  int zoom = PG_GETARG_INT32(2);
-
-  PG_RETURN_INT32(internal_maptile_for_point(lat, lon, zoom));
+   PG_RETURN_INT32((x << zoom) | y);

 }
 
 PG_FUNCTION_INFO_V1(maptile_for_point);
 }
 
 PG_FUNCTION_INFO_V1(maptile_for_point);


@@ -93,5 +34,3 @@ PG_FUNCTION_INFO_V1(maptile_for_point);
 #ifdef PG_MODULE_MAGIC
 PG_MODULE_MAGIC;
 #endif
 #ifdef PG_MODULE_MAGIC
 PG_MODULE_MAGIC;
 #endif

-
-#endif