83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright 2013-2017 CERN
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* @author Maciej Suminski <maciej.suminski@cern.ch>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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 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, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef CACHED_CONTAINER_GPU_H_
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#define CACHED_CONTAINER_GPU_H_
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#include <gal/opengl/cached_container.h>
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namespace KIGFX
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{
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/**
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* @brief Specialization of CACHED_CONTAINER that stores data in video memory via memory mapping.
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*/
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class CACHED_CONTAINER_GPU : public CACHED_CONTAINER
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{
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public:
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CACHED_CONTAINER_GPU( unsigned int aSize = DEFAULT_SIZE );
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~CACHED_CONTAINER_GPU();
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unsigned int GetBufferHandle() const override
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{
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return m_glBufferHandle;
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}
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bool IsMapped() const override
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{
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return m_isMapped;
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}
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///> @copydoc VERTEX_CONTAINER::Map()
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void Map() override;
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///> @copydoc VERTEX_CONTAINER::Unmap()
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void Unmap() override;
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protected:
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///> Flag saying if vertex buffer is currently mapped
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bool m_isMapped;
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///> Vertex buffer handle
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unsigned int m_glBufferHandle;
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///> Flag saying whether it is safe to use glCopyBufferSubData
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bool m_useCopyBuffer;
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/**
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* Function defragmentResize()
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* removes empty spaces between chunks and optionally resizes the container.
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* After the operation there is continous space for storing vertices at the end of the container.
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*
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* @param aNewSize is the new size of container, expressed in number of vertices
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* @return false in case of failure (e.g. memory shortage)
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*/
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bool defragmentResize( unsigned int aNewSize ) override;
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bool defragmentResizeMemcpy( unsigned int aNewSize );
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};
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} // namespace KIGFX
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#endif /* CACHED_CONTAINER_GPU_H_ */
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