/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2015-2016 Mario Luzeiro <mrluzeiro@ua.pt>
 * Copyright The KiCad Developers, see AUTHORS.txt for contributors.
 *
 * 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 ogl_utils.h
 *
 * Define generic OpenGL functions that are common to any OpenGL target.
 */

#ifndef OGL_UTILS_H_
#define OGL_UTILS_H_

#include <wx/image.h>
#include "3d_rendering/image.h"
#include <plugins/3dapi/c3dmodel.h>

/**
 * Set OpenGL materials.
 *
 * @param aMaterial a material structure with parameters to set.
 * @param aOpacity main model opacity 0.0 full transparent, 1.0 full opaque.
 * @param aUseSelectedMaterial if material should be set for selection mode.
 * @param aSelectionColor material to use for selection in case it is enabled.
 */
void OglSetMaterial( const SMATERIAL& aMaterial, float aOpacity,
                     bool aUseSelectedMaterial = false,
                     SFVEC3F aSelectionColor = SFVEC3F( 0.0f ) );

/**
 * Sets only the diffuse color and keep other parameters with default values.
 *
 * @param aMaterialDiffuse the diffuse color to assign to material properties.
 */
void OglSetDiffuseMaterial( const SFVEC3F& aMaterialDiffuse, float aOpacity,
                            bool aUseSelectedMaterial = false,
                            SFVEC3F aSelectionColor = SFVEC3F( 0.0f ) );

/**
 * Generate a new OpenGL texture.
 *
 * @param aImage a image to generate the texture from.
 * @return the OpenGL texture index created.
 */
GLuint OglLoadTexture( const IMAGE& aImage );

/**
 * Get the pixel data of current OpenGL image.
 *
 * @param aDstImage the output image. the image must be destroyed to free the data.
 */
void OglGetScreenshot( wxImage& aDstImage );

void OglDrawBackground( const SFVEC4F& aTopColor, const SFVEC4F& aBotColor );

/**
 * Reset to default state the texture settings.
 */
void OglResetTextureState();

#endif // OGL_UTILS_H_