ResInsight/Fwk/VizFwk/LibRender/cvfSampler.h

103 lines
3.8 KiB
C++

//##################################################################################################
//
// Custom Visualization Core library
// Copyright (C) 2011-2013 Ceetron AS
//
// This library may be used under the terms of either the GNU General Public License or
// the GNU Lesser General Public License as follows:
//
// GNU General Public License Usage
// This library 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 3 of the License, or
// (at your option) any later version.
//
// This library 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 at <<http://www.gnu.org/licenses/gpl.html>>
// for more details.
//
// GNU Lesser General Public License Usage
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation; either version 2.1 of the License, or
// (at your option) any later version.
//
// This library 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 Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
// for more details.
//
//##################################################################################################
#pragma once
#include "cvfObject.h"
namespace cvf {
//==================================================================================================
//
// OpenGL 3.3/4.1 settings:
//
// Currently handled:
// TEXTURE_WRAP_S
// TEXTURE_WRAP_T
// TEXTURE_MIN_FILTER
// TEXTURE_MAG_FILTER
//
// TBI:
// TEXTURE_WRAP_R, TEXTURE_BORDER_COLOR, TEXTURE_MIN_LOD, TEXTURE_MAX_LOD, TEXTURE_LOD_BIAS,
// TEXTURE_COMPARE_MODE, TEXTURE_COMPARE_FUNC
//
//==================================================================================================
class Sampler : public Object
{
public:
enum WrapMode
{
REPEAT, // OpenGL default
CLAMP_TO_EDGE,
CLAMP_TO_BORDER,
MIRRORED_REPEAT
};
enum Filter
{
NEAREST, ///< Nearest neighbor filtering on the base mip level
LINEAR, ///< Linear filtering on the base mip level. (Default magnification filter in OpenGL)
NEAREST_MIPMAP_NEAREST, ///< Selects nearest mip level and performs nearest neighbor filtering
LINEAR_MIPMAP_NEAREST, ///< Selects nearest mip level and performs linear filtering
NEAREST_MIPMAP_LINEAR, ///< Perform linear interpolation between mip levels and perform nearest neighbor filtering. (Default minifying filter in OpenGL)
LINEAR_MIPMAP_LINEAR ///< Perform linear interpolation between mip levels and perform linear filtering (trilinear mipmapping)
};
public:
Sampler();
void setWrapMode(WrapMode wrapMode);
void setWrapModeS(WrapMode wrapMode);
void setWrapModeT(WrapMode wrapMode);
void setMinFilter(Filter minFilter);
void setMagFilter(Filter magFilter);
WrapMode wrapModeS() const;
WrapMode wrapModeT() const;
Filter minFilter() const;
Filter magFilter() const;
private:
WrapMode m_wrapModeS; ///< Wrap mode for texture coordinate S. Default is REPEAT
WrapMode m_wrapModeT; ///< Wrap mode for texture coordinate T. Default is REPEAT
Filter m_minFilter; ///< Minifying function. Default is NEAREST_MIPMAP_LINEAR
Filter m_magFilter; ///< Magnification function. Default is LINEAR
};
} // namespace cvf