kicad/include/gal/opengl/cached_container_ram.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright 2013-2017 CERN
* Copyright (C) 2020-2021 KiCad Developers, see AUTHORS.txt for contributors.
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*
* @author Maciej Suminski <maciej.suminski@cern.ch>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef CACHED_CONTAINER_RAM_H_
#define CACHED_CONTAINER_RAM_H_
#include <gal/opengl/cached_container.h>
#include <map>
#include <set>
namespace KIGFX
{
class VERTEX_ITEM;
class SHADER;
/**
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* Specialization of CACHED_CONTAINER that stores data in RAM.
*
* This is mainly for video cards/drivers that do not cope well with video memory mapping.
*/
class CACHED_CONTAINER_RAM : public CACHED_CONTAINER
{
public:
CACHED_CONTAINER_RAM( unsigned int aSize = DEFAULT_SIZE );
~CACHED_CONTAINER_RAM();
///< @copydoc VERTEX_CONTAINER::Unmap()
void Map() override {}
///< @copydoc VERTEX_CONTAINER::Unmap()
void Unmap() override;
bool IsMapped() const override
{
return true;
}
/**
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* Return handle to the vertex buffer.
*
* It might be negative if the buffer is not initialized.
*/
unsigned int GetBufferHandle() const override
{
return m_verticesBuffer; // make common with CACHED_CONTAINER_RAM
}
protected:
/**
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* Defragment the currently stored data and resizes the buffer.
*
* @param aNewSize is the new buffer vertex buffer size, expressed as the number of vertices.
* @return true on success.
*/
bool defragmentResize( unsigned int aNewSize ) override;
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///< Handle to vertices buffer
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GLuint m_verticesBuffer;
};
} // namespace KIGFX
#endif /* CACHED_CONTAINER_RAM_H_ */