e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
99 lines
2.4 KiB
C++
99 lines
2.4 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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/** \file
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* \ingroup freestyle
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* \brief Class to represent a pyramid of images
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*/
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#include <vector>
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#include "../system/FreestyleConfig.h"
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#ifdef WITH_CXX_GUARDEDALLOC
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# include "MEM_guardedalloc.h"
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#endif
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namespace Freestyle {
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class GrayImage;
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class ImagePyramid {
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protected:
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std::vector<GrayImage *> _levels;
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public:
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ImagePyramid() {}
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ImagePyramid(const ImagePyramid &iBrother);
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// ImagePyramid(const GrayImage& level0, uint nbLevels);
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virtual ~ImagePyramid();
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/** Builds the pyramid.
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* must be overloaded by inherited classes.
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* if nbLevels==0, the complete pyramid is built
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*/
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virtual void BuildPyramid(const GrayImage &level0, uint nbLevels) = 0;
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/** Builds a pyramid without copying the base level */
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virtual void BuildPyramid(GrayImage *level0, uint nbLevels) = 0;
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virtual GrayImage *getLevel(int l);
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/** Returns the pixel x,y using bilinear interpolation.
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* \param x:
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* the abscissa specified in the finest level coordinate system
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* \param y:
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* the ordinate specified in the finest level coordinate system
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* \param level:
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* the level from which we want the pixel to be evaluated
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*/
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virtual float pixel(int x, int y, int level = 0);
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/** Returns the width of the level-th level image */
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virtual int width(int level = 0);
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/** Returns the height of the level-th level image */
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virtual int height(int level = 0);
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/** Returns the number of levels in the pyramid */
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inline int getNumberOfLevels() const
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{
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return _levels.size();
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}
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#ifdef WITH_CXX_GUARDEDALLOC
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MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:ImagePyramid")
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#endif
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};
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class GaussianPyramid : public ImagePyramid {
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protected:
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float _sigma;
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public:
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GaussianPyramid(float iSigma = 1.0f) : ImagePyramid()
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{
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_sigma = iSigma;
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}
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GaussianPyramid(const GrayImage &level0, uint nbLevels, float iSigma = 1.0f);
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GaussianPyramid(GrayImage *level0, uint nbLevels, float iSigma = 1.0f);
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GaussianPyramid(const GaussianPyramid &iBrother);
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virtual ~GaussianPyramid() {}
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virtual void BuildPyramid(const GrayImage &level0, uint nbLevels);
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virtual void BuildPyramid(GrayImage *level0, uint nbLevels);
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/* accessors */
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inline float getSigma() const
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{
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return _sigma;
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}
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/* modifiers */
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};
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} /* namespace Freestyle */
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