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mirror of https://gitlab.com/kicad/code/kicad.git synced 2024-11-25 00:35:01 +00:00
kicad/common/gal/opengl/vertex_container.cpp
Wayne Stambaugh be8327bd54 GAL memory allocation fixes.
Vertex memory allocation uses malloc and realloc without checking the
result.  Throw exceptions that can be caught in the DoRepaint() method
in EDA_DRAW_PANEL_GAL when malloc and realloc return a null pointer.
2021-02-22 08:15:09 -05:00

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()
{
}