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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtDataVis3D module.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
#ifndef SHADERHELPER_P_H
#define SHADERHELPER_P_H
#include "qdatavis3dglobal.h"
#include <QOpenGLFunctions>
class QOpenGLShaderProgram;
QTCOMMERCIALDATAVIS3D_BEGIN_NAMESPACE
class ShaderHelper
{
public:
ShaderHelper(QObject *parent
, const QString &vertexShader = QString()
, const QString &fragmentShader = QString()
, const QString &texture = QString()
, const QString &depthTexture = QString());
~ShaderHelper();
void setShaders(const QString &vertexShader, const QString &fragmentShader);
void setTextures(const QString &texture, const QString &depthTexture);
void initialize();
void bind();
void release();
void setUniformValue(GLuint uniform, const QVector3D &value);
void setUniformValue(GLuint uniform, const QVector4D &value);
void setUniformValue(GLuint uniform, const QMatrix4x4 &value);
void setUniformValue(GLuint uniform, GLfloat value);
GLuint MVP();
GLuint view();
GLuint model();
GLuint nModel();
GLuint lightP();
GLuint lightS();
GLuint ambientS();
GLuint color();
GLuint texture();
GLuint posAtt();
GLuint uvAtt();
GLuint normalAtt();
private:
QObject *m_caller;
QOpenGLShaderProgram *m_program;
QString m_vertexShaderFile;
QString m_fragmentShaderFile;
QString m_textureFile;
QString m_depthTextureFile;
GLuint m_positionAttr;
GLuint m_uvAttr;
GLuint m_normalAttr;
GLuint m_colorUniform;
GLuint m_viewMatrixUniform;
GLuint m_modelMatrixUniform;
GLuint m_invTransModelMatrixUniform;
GLuint m_mvpMatrixUniform;
GLuint m_lightPositionUniform;
GLuint m_lightStrengthUniform;
GLuint m_ambientStrengthUniform;
GLuint m_textureUniform;
//GLuint m_depthTexture; // currently unused
GLboolean m_initialized;
};
QTCOMMERCIALDATAVIS3D_END_NAMESPACE
#endif
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