PostGIS  2.5.0beta2dev-r@@SVN_REVISION@@

◆ mvt_ctx_combine()

mvt_agg_context* mvt_ctx_combine ( mvt_agg_context ctx1,
mvt_agg_context ctx2 
)

Definition at line 1108 of file mvt.c.

References mvt_agg_context::tile, and vectortile_tile_combine().

Referenced by pgis_asmvt_combinefn().

1109 {
1110  if (ctx1 || ctx2)
1111  {
1112  if (ctx1 && ! ctx2) return ctx1;
1113  if (ctx2 && ! ctx1) return ctx2;
1114  if (ctx1 && ctx2 && ctx1->tile && ctx2->tile)
1115  {
1116  mvt_agg_context *ctxnew = palloc(sizeof(mvt_agg_context));
1117  memset(ctxnew, 0, sizeof(mvt_agg_context));
1118  ctxnew->tile = vectortile_tile_combine(ctx1->tile, ctx2->tile);
1119  return ctxnew;
1120  }
1121  else
1122  {
1123  elog(DEBUG2, "ctx1->tile = %p", ctx1->tile);
1124  elog(DEBUG2, "ctx2->tile = %p", ctx2->tile);
1125  elog(ERROR, "%s: unable to combine contexts where tile attribute is null", __func__);
1126  return NULL;
1127  }
1128  }
1129  else
1130  {
1131  return NULL;
1132  }
1133 }
VectorTile__Tile * tile
Definition: mvt.h:57
static VectorTile__Tile * vectortile_tile_combine(VectorTile__Tile *tile1, VectorTile__Tile *tile2)
Definition: mvt.c:1069
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