kicad/common/gal/opengl/vertex_container.cpp

74 lines
2.3 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2013 CERN
* Copyright (C) 2021 KiCad Developers, see AUTHORS.txt for contributors.
*
* @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
*/
/**
* @file vertex_container.cpp
* @brief Class to store vertices and handle transfers between system memory and GPU memory.
*/
#include <gal/opengl/vertex_container.h>
#include <gal/opengl/cached_container_ram.h>
#include <gal/opengl/cached_container_gpu.h>
#include <gal/opengl/noncached_container.h>
#include <gal/opengl/shader.h>
#include <cstring>
using namespace KIGFX;
VERTEX_CONTAINER* VERTEX_CONTAINER::MakeContainer( bool aCached )
{
if( aCached )
{
const char* vendor = (const char*) glGetString( GL_VENDOR );
// Open source drivers do not cope well with GPU memory mapping,
// so the vertex data has to be kept in RAM
if( strstr( vendor, "X.Org" ) || strstr( vendor, "nouveau" ) )
return new CACHED_CONTAINER_RAM;
else
return new CACHED_CONTAINER_GPU;
}
return new NONCACHED_CONTAINER;
}
VERTEX_CONTAINER::VERTEX_CONTAINER( unsigned int aSize ) :
m_freeSpace( aSize ),
m_currentSize( aSize ),
m_initialSize( aSize ),
m_vertices( nullptr ),
m_failed( false ),
m_dirty( true )
{
}
VERTEX_CONTAINER::~VERTEX_CONTAINER()
{
}