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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2013 CERN
* @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_common.h
* @brief Common defines and consts used in vertex related classes.
*/
#ifndef VERTEX_COMMON_H_
#define VERTEX_COMMON_H_
#include <GL/glew.h>
#include <cstddef>
namespace KIGFX
{
// Possible types of shaders
enum SHADER_MODE
{
SHADER_NONE = 0,
SHADER_LINE,
SHADER_FILLED_CIRCLE,
SHADER_STROKED_CIRCLE,
};
typedef struct
{
GLfloat x, y, z; // Coordinates
GLubyte r, g, b, a; // Color
GLfloat shader[4]; // Shader type & params
} VERTEX;
///< Data structure for vertices {X,Y,Z,R,G,B,A,shader¶m} (@see VERTEX).
const unsigned int VertexSize = sizeof(VERTEX);
const unsigned int VertexStride = VertexSize / sizeof(GLfloat);
const unsigned int CoordSize = sizeof(VERTEX().x) + sizeof(VERTEX().y) + sizeof(VERTEX().z);
const unsigned int CoordStride = CoordSize / sizeof(GLfloat);
// Offset of color data from the beginning of each vertex data
const unsigned int ColorOffset = offsetof(VERTEX, r);
const unsigned int ColorSize = sizeof(VERTEX().r) + sizeof(VERTEX().g) +
sizeof(VERTEX().b) + sizeof(VERTEX().a);
const unsigned int ColorStride = ColorSize / sizeof(GLubyte);
// Shader attributes
const unsigned int ShaderOffset = offsetof(VERTEX, shader);
const unsigned int ShaderSize = sizeof(VERTEX().shader);
const unsigned int ShaderStride = ShaderSize / sizeof(GLfloat);
const unsigned int IndexSize = sizeof(GLuint);
} // namespace KIGFX
#endif /* VERTEX_COMMON_H_ */
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