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authorTamito Kajiyama <rd6t-kjym@asahi-net.or.jp>2012-12-22 22:25:01 +0400
committerTamito Kajiyama <rd6t-kjym@asahi-net.or.jp>2012-12-22 22:25:01 +0400
commitfa0211df269a3398dd70467982f9e129c79e501b (patch)
tree404ee267890602b49470cb640986b50d2c2055c1 /source/blender/freestyle/intern/image/ImagePyramid.cpp
parent8b57a67f3eb57366c2b3abcb8f3b04403d339e1a (diff)
Another "insanely" big code clean-up patch by Bastien Montagne, many thanks!
Diffstat (limited to 'source/blender/freestyle/intern/image/ImagePyramid.cpp')
-rw-r--r--source/blender/freestyle/intern/image/ImagePyramid.cpp310
1 files changed, 168 insertions, 142 deletions
diff --git a/source/blender/freestyle/intern/image/ImagePyramid.cpp b/source/blender/freestyle/intern/image/ImagePyramid.cpp
index 542ab7917e3..c7616fbce23 100644
--- a/source/blender/freestyle/intern/image/ImagePyramid.cpp
+++ b/source/blender/freestyle/intern/image/ImagePyramid.cpp
@@ -1,166 +1,192 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2010 Blender Foundation.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/freestyle/intern/image/ImagePyramid.cpp
+ * \ingroup freestyle
+ * \brief Class to represent a pyramid of images
+ * \author Stephane Grabli
+ * \date 25/12/2003
+ */
-//
-// Copyright (C) : Please refer to the COPYRIGHT file distributed
-// with this source distribution.
-//
-// 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.
-//
-///////////////////////////////////////////////////////////////////////////////
-#include "ImagePyramid.h"
-#include "Image.h"
-#include "GaussianFilter.h"
#include <iostream>
+#include "GaussianFilter.h"
+#include "Image.h"
+#include "ImagePyramid.h"
+
using namespace std;
-//ImagePyramid::ImagePyramid(const GrayImage& level0, unsigned nbLevels){
-// //BuildPyramid(level0,nbLevels);
-//}
-
-ImagePyramid::ImagePyramid(const ImagePyramid& iBrother){
- if(!_levels.empty()){
- for(vector<GrayImage*>::iterator im=_levels.begin(), imend=_levels.end();
- im!=imend;
- ++im){
- _levels.push_back(new GrayImage(**im));
- }
- }
+#if 0
+ImagePyramid::ImagePyramid(const GrayImage& level0, unsigned nbLevels)
+{
+ BuildPyramid(level0,nbLevels);
+}
+#endif
+
+ImagePyramid::ImagePyramid(const ImagePyramid& iBrother)
+{
+ if (!_levels.empty()) {
+ for (vector<GrayImage*>::iterator im = _levels.begin(), imend = _levels.end(); im != imend; ++im) {
+ _levels.push_back(new GrayImage(**im));
+ }
+ }
}
-ImagePyramid::~ImagePyramid(){
- if(!_levels.empty()){
- for(vector<GrayImage*>::iterator im=_levels.begin(), imend=_levels.end();
- im!=imend;
- ++im){
- delete (*im);
- }
- _levels.clear();
- }
+
+ImagePyramid::~ImagePyramid()
+{
+ if (!_levels.empty()) {
+ for (vector<GrayImage*>::iterator im = _levels.begin(), imend = _levels.end(); im != imend; ++im) {
+ delete (*im);
+ }
+ _levels.clear();
+ }
}
-GrayImage * ImagePyramid::getLevel(int l){
- return _levels[l];
+GrayImage * ImagePyramid::getLevel(int l)
+{
+ return _levels[l];
}
-float ImagePyramid::pixel(int x, int y, int level){
- GrayImage *img = _levels[level];
- if(0 == level){
- return img->pixel(x,y);
- }
- unsigned int i = 1<<level;
- unsigned int sx = x>>level;
- unsigned int sy = y>>level;
- if(sx >= img->width())
- sx = img->width()-1;
- if(sy >= img->height())
- sy = img->height()-1;
-
- // bilinear interpolation
- float A = i*(sx+1)-x;
- float B = x-i*sx;
- float C = i*(sy+1)-y;
- float D = y-i*sy;
-
- float P1(0), P2(0);
- P1 = A*img->pixel(sx,sy);
- if(sx < img->width()-1){
- if(x%i != 0)
- P1 += B*img->pixel(sx+1,sy);
- }else{
- P1 += B*img->pixel(sx,sy);
- }
- if(sy<img->height()-1){
- if(y%i != 0){
- P2 = A*img->pixel(sx,sy+1);
- if(sx < img->width()-1){
- if(x%i != 0)
- P2 += B*img->pixel(sx+1,sy+1);
- }else{
- P2 += B*img->pixel(sx,sy+1);
- }
- }
- }else{
- P2 = P1;
- }
- return (1.f/(float)(1<<2*level))*(C*P1 + D*P2);
+float ImagePyramid::pixel(int x, int y, int level)
+{
+ GrayImage *img = _levels[level];
+ if (0 == level) {
+ return img->pixel(x, y);
+ }
+ unsigned int i = 1 << level;
+ unsigned int sx = x >> level;
+ unsigned int sy = y >> level;
+ if (sx >= img->width())
+ sx = img->width() - 1;
+ if (sy >= img->height())
+ sy = img->height() - 1;
+
+ // bilinear interpolation
+ float A = i * (sx + 1) - x;
+ float B = x - i * sx;
+ float C = i * (sy + 1) - y;
+ float D = y - i * sy;
+
+ float P1(0), P2(0);
+ P1 = A * img->pixel(sx, sy);
+ if (sx < img->width() - 1) {
+ if (x % i != 0)
+ P1 += B * img->pixel(sx + 1, sy);
+ }
+ else {
+ P1 += B * img->pixel(sx, sy);
+ }
+ if (sy < img->height() - 1) {
+ if (y % i != 0) {
+ P2 = A * img->pixel(sx, sy + 1);
+ if (sx < img->width() - 1) {
+ if (x % i != 0)
+ P2 += B * img->pixel(sx + 1, sy + 1);
+ }
+ else {
+ P2 += B * img->pixel(sx, sy + 1);
+ }
+ }
+ }
+ else {
+ P2 = P1;
+ }
+ return (1.0f / (float)(1 << (2 * level))) * (C * P1 + D * P2);
}
-int ImagePyramid::width(int level){
- return _levels[level]->width();
+int ImagePyramid::width(int level)
+{
+ return _levels[level]->width();
}
-int ImagePyramid::height(int level){
- return _levels[level]->height();
+int ImagePyramid::height(int level)
+{
+ return _levels[level]->height();
}
-GaussianPyramid::GaussianPyramid(const GrayImage& level0, unsigned nbLevels, float iSigma)
- : ImagePyramid()
+GaussianPyramid::GaussianPyramid(const GrayImage& level0, unsigned nbLevels, float iSigma) : ImagePyramid()
{
- _sigma = iSigma;
- BuildPyramid(level0,nbLevels);
-}
-GaussianPyramid::GaussianPyramid(GrayImage* level0, unsigned nbLevels, float iSigma)
- : ImagePyramid()
+ _sigma = iSigma;
+ BuildPyramid(level0, nbLevels);
+}
+
+GaussianPyramid::GaussianPyramid(GrayImage* level0, unsigned nbLevels, float iSigma) : ImagePyramid()
{
- _sigma = iSigma;
- BuildPyramid(level0,nbLevels);
+ _sigma = iSigma;
+ BuildPyramid(level0, nbLevels);
}
-GaussianPyramid::GaussianPyramid(const GaussianPyramid& iBrother)
-: ImagePyramid(iBrother){
- _sigma = iBrother._sigma;
+GaussianPyramid::GaussianPyramid(const GaussianPyramid& iBrother) : ImagePyramid(iBrother)
+{
+ _sigma = iBrother._sigma;
}
-void GaussianPyramid::BuildPyramid(const GrayImage& level0, unsigned nbLevels){
- GrayImage *pLevel = new GrayImage(level0);
- BuildPyramid(pLevel, nbLevels);
+
+void GaussianPyramid::BuildPyramid(const GrayImage& level0, unsigned nbLevels)
+{
+ GrayImage *pLevel = new GrayImage(level0);
+ BuildPyramid(pLevel, nbLevels);
}
-void GaussianPyramid::BuildPyramid(GrayImage* level0, unsigned nbLevels){
- GrayImage *pLevel = level0;
- _levels.push_back(pLevel);
- GaussianFilter gf(_sigma);
- // build the nbLevels:
- unsigned w = pLevel->width();
- unsigned h = pLevel->height();
- if(nbLevels!=0)
- {
- for(unsigned i=0; i<nbLevels; ++i){ //soc
- w = pLevel->width()>>1;
- h = pLevel->height()>>1;
- GrayImage *img = new GrayImage(w,h);
- for(unsigned y=0; y<h; ++y){
- for(unsigned x=0; x<w; ++x){
- float v = gf.getSmoothedPixel<GrayImage>(pLevel, 2*x,2*y);
- img->setPixel(x,y,v);
- }
- }
- _levels.push_back(img);
- pLevel = img;
- }
- }else{
- while((w>1) && (h>1)){
- w = pLevel->width()>>1;
- h = pLevel->height()>>1;
- GrayImage *img = new GrayImage(w,h);
- for(unsigned y=0; y<h; ++y){
- for(unsigned x=0; x<w; ++x){
- float v = gf.getSmoothedPixel<GrayImage>(pLevel, 2*x,2*y);
- img->setPixel(x,y,v);
- }
- }
- _levels.push_back(img);
- pLevel = img;
- }
- }
+void GaussianPyramid::BuildPyramid(GrayImage* level0, unsigned nbLevels)
+{
+ GrayImage *pLevel = level0;
+ _levels.push_back(pLevel);
+ GaussianFilter gf(_sigma);
+ // build the nbLevels:
+ unsigned w = pLevel->width();
+ unsigned h = pLevel->height();
+ if (nbLevels != 0) {
+ for (unsigned int i = 0; i < nbLevels; ++i) { //soc
+ w = pLevel->width() >> 1;
+ h = pLevel->height() >> 1;
+ GrayImage *img = new GrayImage(w, h);
+ for (unsigned int y = 0; y < h; ++y) {
+ for (unsigned int x = 0; x < w; ++x) {
+ float v = gf.getSmoothedPixel<GrayImage>(pLevel, 2 * x, 2 * y);
+ img->setPixel(x, y, v);
+ }
+ }
+ _levels.push_back(img);
+ pLevel = img;
+ }
+ }
+ else {
+ while ((w > 1) && (h > 1)) {
+ w = pLevel->width() >> 1;
+ h = pLevel->height() >> 1;
+ GrayImage *img = new GrayImage(w, h);
+ for (unsigned int y = 0; y < h; ++y) {
+ for (unsigned int x = 0; x < w; ++x) {
+ float v = gf.getSmoothedPixel<GrayImage>(pLevel, 2 * x, 2 * y);
+ img->setPixel(x, y, v);
+ }
+ }
+ _levels.push_back(img);
+ pLevel = img;
+ }
+ }
}