RASTER_fromWKB()

Datum RASTER_fromWKB

(

PG_FUNCTION_ARGS

)

Definition at line 143 of file rtpg_wkb.c.

{
        bytea *bytea_data;
        uint8_t *data;
        int data_len = 0;
 
        rt_raster raster;
        void *result = NULL;
 
        POSTGIS_RT_DEBUG(3, "Starting");
 
        bytea_data = (bytea *) PG_GETARG_BYTEA_P(0);
        data = (uint8_t *) VARDATA(bytea_data);
        data_len = VARSIZE(bytea_data) - VARHDRSZ;
 
        raster = rt_raster_from_wkb(data, data_len);
        PG_FREE_IF_COPY(bytea_data, 0);
        if (raster == NULL)
                PG_RETURN_NULL();
 
        result = rt_raster_serialize(raster);
        rt_raster_destroy(raster);
        if (result == NULL)
                PG_RETURN_NULL();
 
        SET_VARSIZE(result, ((rt_pgraster*)result)->size);
        PG_RETURN_POINTER(result);
}

References ovdump::data, POSTGIS_RT_DEBUG, rtrowdump::raster, rt_raster_destroy(), rt_raster_from_wkb(), and rt_raster_serialize().

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