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/***************************************************************************
* Copyright (C) 2012 by Walter Roth *
* *
* 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, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifndef SHADERDEBUGGER_H
#define SHADERDEBUGGER_H
#include <QtOpenGL/QGLWidget>
#include <QMatrix3x3>
#include <QMatrix4x4>
/** \brief A simple debugging tool for uniforms passed to a shader.
*
* There is no way to get the values of variables inside a shader, therefore you have to look
* at the variables, before they are passed to the shader.
*/
class ShaderDebugger
{
public:
ShaderDebugger();
static void setEnabled(bool newVal){enabled = newVal;}
/**
* Works on GLES platforms only.
*/
static void debugUniforms(int programId);
/**
* @brief debugMatrix4x4 Send debug output to stderr.
* @param m The matrix
* @param caption
*/
static void debugMatrix4x4(const QMatrix4x4 & m, const QString & caption = "QMatrix4x4");
/**
* @brief debugMatrix3x3 Send debug output to stderr.
* @param m The matrix
* @param caption
*/
static void debugMatrix3x3(const QMatrix3x3 & m, const QString & caption = "QMatrix3x3");
/**
* @brief debugVector4D Send debug output to stderr.
* @param m The vector
* @param caption
*/
static void debugVector4D(const QVector4D & v, const QString & caption = "QVector4D");
/**
* @brief debugVector4D Send debug output to stderr.
* @param m The vector
* @param caption
*/
static void debugVector3D(const QVector3D & v, const QString & caption = "QVector3D");
private:
static bool enabled;
};
#endif // SHADERDEBUGGER_H
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