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0b2d4d4879
Recommendation is to avoid using the year nomenclature as this information is already encoded in the git repo. Avoids needing to repeatly update. Also updates AUTHORS.txt from current repo with contributor names
135 lines
4.0 KiB
C++
135 lines
4.0 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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* Copyright The KiCad Developers, see AUTHORS.txt for contributors.
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*
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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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#include <gal/opengl/cached_container_ram.h>
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#include <gal/opengl/vertex_manager.h>
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#include <gal/opengl/vertex_item.h>
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#include <gal/opengl/shader.h>
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#include <gal/opengl/utils.h>
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#include <confirm.h>
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#include <list>
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#include <cassert>
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#include <wx/log.h>
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#ifdef KICAD_GAL_PROFILE
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#include <core/profile.h>
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#endif /* KICAD_GAL_PROFILE */
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using namespace KIGFX;
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/**
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* Flag to enable debug output of the GAL OpenGL cached container.
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*
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* Use "KICAD_GAL_CACHED_CONTAINER" to enable GAL OpenGL cached container tracing.
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*
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* @ingroup trace_env_vars
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*/
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static const wxChar* const traceGalCachedContainer = wxT( "KICAD_GAL_CACHED_CONTAINER" );
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CACHED_CONTAINER_RAM::CACHED_CONTAINER_RAM( unsigned int aSize ) :
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CACHED_CONTAINER( aSize ),
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m_verticesBuffer( 0 )
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{
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glGenBuffers( 1, &m_verticesBuffer );
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checkGlError( "generating vertices buffer", __FILE__, __LINE__ );
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m_vertices = static_cast<VERTEX*>( malloc( aSize * VERTEX_SIZE ) );
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if( !m_vertices )
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throw std::bad_alloc();
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}
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CACHED_CONTAINER_RAM::~CACHED_CONTAINER_RAM()
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{
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if( glDeleteBuffers )
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glDeleteBuffers( 1, &m_verticesBuffer );
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free( m_vertices );
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}
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void CACHED_CONTAINER_RAM::Unmap()
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{
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if( !m_dirty )
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return;
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// Upload vertices coordinates and shader types to GPU memory
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glBindBuffer( GL_ARRAY_BUFFER, m_verticesBuffer );
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checkGlError( "binding vertices buffer", __FILE__, __LINE__ );
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glBufferData( GL_ARRAY_BUFFER, m_maxIndex * VERTEX_SIZE, m_vertices, GL_STREAM_DRAW );
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checkGlError( "transferring vertices", __FILE__, __LINE__ );
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glBindBuffer( GL_ARRAY_BUFFER, 0 );
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checkGlError( "unbinding vertices buffer", __FILE__, __LINE__ );
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}
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bool CACHED_CONTAINER_RAM::defragmentResize( unsigned int aNewSize )
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{
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wxLogTrace( traceGalCachedContainer,
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wxT( "Resizing & defragmenting container (memcpy) from %d to %d" ), m_currentSize,
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aNewSize );
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// No shrinking if we cannot fit all the data
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if( usedSpace() > aNewSize )
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return false;
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#ifdef KICAD_GAL_PROFILE
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PROF_TIMER totalTime;
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#endif /* KICAD_GAL_PROFILE */
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VERTEX* newBufferMem = static_cast<VERTEX*>( malloc( aNewSize * VERTEX_SIZE ) );
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if( !newBufferMem )
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throw std::bad_alloc();
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defragment( newBufferMem );
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// Switch to the new vertex buffer
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free( m_vertices );
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m_vertices = newBufferMem;
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#ifdef KICAD_GAL_PROFILE
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totalTime.Stop();
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wxLogTrace( traceGalCachedContainer, "Defragmented container storing %d vertices / %.1f ms",
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m_currentSize - m_freeSpace, totalTime.msecs() );
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#endif /* KICAD_GAL_PROFILE */
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m_freeSpace += ( aNewSize - m_currentSize );
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m_currentSize = aNewSize;
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// Now there is only one big chunk of free memory
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m_freeChunks.clear();
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m_freeChunks.insert( std::make_pair( m_freeSpace, m_currentSize - m_freeSpace ) );
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m_dirty = true;
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return true;
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}
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