74 lines
2.8 KiB
C++
74 lines
2.8 KiB
C++
// Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License, version 2.0,
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// as published by the Free Software Foundation.
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//
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// This program is also distributed with certain software (including
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// but not limited to OpenSSL) that is licensed under separate terms,
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// as designated in a particular file or component or in included license
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// documentation. The authors of MySQL hereby grant you an additional
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// permission to link the program and your derivative works with the
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// separately licensed software that they have included with MySQL.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License, version 2.0, for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#include "wkb_size_visitor.h"
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#include <cstdint> // std::uint32_t, std::uint8_t
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#include "my_dbug.h" // DBUG_ASSERT
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namespace gis {
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bool Wkb_size_visitor::visit_enter(Geometry *) {
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/* purecov: begin deadcode */
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DBUG_ASSERT(false);
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return true;
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/* purecov: end */
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}
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bool Wkb_size_visitor::visit_enter(Linestring *ls) {
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m_size += sizeof(std::uint8_t) + // Byte order
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sizeof(std::uint32_t) + // WKB type
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sizeof(std::uint32_t) + // numPoints
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ls->size() * 2 * sizeof(double); // Point data;
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return true; // Points included above, so don't descend into children.
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}
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bool Wkb_size_visitor::visit_enter(Linearring *lr) {
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m_size += sizeof(std::uint32_t) + // numPoints
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lr->size() * 2 * sizeof(double); // Point data;
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return true; // Points included above, so don't descend into children.
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}
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bool Wkb_size_visitor::visit_enter(Polygon *) {
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m_size += sizeof(std::uint8_t) + // Byte order
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sizeof(std::uint32_t) + // WKB type
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sizeof(std::uint32_t); // numRings
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return false; // Descend into children to count rings sizes.
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}
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bool Wkb_size_visitor::visit_enter(Geometrycollection *) {
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m_size += sizeof(std::uint8_t) + // Byte order
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sizeof(std::uint32_t) + // WKB type
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sizeof(std::uint32_t); // numGeometries
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return false; // Descend into children to count them separately.
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}
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bool Wkb_size_visitor::visit(Point *) {
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m_size += sizeof(std::uint8_t) + // Byte order
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sizeof(std::uint32_t) + // WKB type
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2 * sizeof(double); // Point data;
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return false;
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}
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} // namespace gis
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