116 lines
3.2 KiB
C++
116 lines
3.2 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 (C) 2013 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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/**
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* @file vbo_item.h
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* @brief Class to handle an item held in a Vertex Buffer Object.
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*/
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// TODO comments
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#ifndef VBO_ITEM_H_
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#define VBO_ITEM_H_
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#include <GL/gl.h>
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namespace KiGfx
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{
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class VBO_ITEM
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{
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public:
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VBO_ITEM();
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~VBO_ITEM();
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// TODO comments
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void PushVertex( const GLfloat* aVertex );
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void PushVertices( const GLfloat* aVertex, GLuint aSize );
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/**
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* Function GetVertices()
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* Returns a pointer to the array containing all vertices.
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* @return Pointer to vertices packed in format {X, Y, Z, R, G, B, A}.
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*/
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GLfloat* GetVertices() const;
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GLuint* GetIndices() const;
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/**
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* Function GetSize()
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* Returns information about number of vertices stored.
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* @param Amount of vertices.
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*/
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int GetSize() const;
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/**
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* Function SetOffset()
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* Sets data offset in the VBO.
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* @param aOffset is the offset expressed as a number of vertices.
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*/
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void SetOffset( int aOffset );
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/**
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* Function GetOffset()
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* Returns data offset in the VBO.
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* @return Data offset expressed as a number of vertices.
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*/
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int GetOffset() const;
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///< Functions for getting VBO ids.
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//void SetVbo( int aVboId );
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//int GetVbo();
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///< Data organization information for vertices.
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static const int VertStride = 7;
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static const int VertSize = VertStride * sizeof(GLfloat);
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static const int IndStride = 1;
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static const int IndSize = IndStride * sizeof(GLuint);
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static const int ColorOffset = 3 * sizeof(GLfloat);
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private:
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///< VBO ids in which the item is stored.
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//int m_vboId; // not used yet
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///< Contains vertices coordinates and colors.
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///< Packed by 7 floats for each vertex: {X, Y, Z, R, G, B, A}
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GLfloat* m_vertices;
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///< Indices of vertices
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GLuint* m_indices;
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///< Offset and size of data in VBO.
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int m_offset;
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int m_size;
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///< Shader data used for rendering.
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int m_shader;
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int m_shaderAttrib;
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///< Flag telling if the item should be recached in VBO or not.
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bool m_isDirty;
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};
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} // namespace KiGfx
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#endif /* VBO_ITEM_H_ */
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