Debut Tests ASIFT + Essai VISP simplifié

ASIFT_tests/demo_ASIFT_src/flimage.cpp

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+// Authors: Unknown. Please, if you are the author of this file, or if you 
+// know who are the authors of this file, let us know, so we can give the 
+// adequate credits and/or get the adequate authorizations.
+
+#include "flimage.h"
+
+
+
+//////////////////////////////////////////////// Class flimage
+//// Construction
+flimage::flimage() : width(0), height(0), p(0) 
+{
+}	 
+
+flimage::flimage(int w, int h) : width(w), height(h), p(new float[w*h]) 
+{
+	for (int j=width*height-1; j>=0 ; j--) p[j] = 0.0;
+}	
+
+
+flimage::flimage(int w, int h, float v) : width(w), height(h), p(new float[w*h]) 
+{
+	for (int j=width*height-1; j>=0 ; j--) p[j] = v;
+}
+
+
+flimage::flimage(int w, int h, float* v) : width(w), height(h), p(new float[w*h]) 
+{
+	for (int j=width*height-1; j>=0 ; j--) p[j] = v[j];
+}
+
+
+void flimage::create(int w, int h)
+{ 
+ 	erase();
+	width = w; height = h; 
+	p = new float[w*h];	
+	for (int j=width*height-1; j>=0 ; j--) p[j] = 0.0;
+}
+
+void flimage::create(int w, int h, float* v)
+{
+ 	erase();
+	width = w; height = h;  p = new float[w*h]; 
+	for (int j=width*height-1; j>=0 ; j--) p[j] = v[j];
+}
+
+
+flimage::flimage(const flimage& im) : width(im.width), height(im.height), p(new float[im.width*im.height]) 
+{
+	for (int j=width*height-1; j>=0 ; j--) p[j] = im.p[j];
+}
+
+flimage&  flimage::operator= (const flimage& im)
+{	
+	if (&im == this) {
+		return *this;
+	}
+	
+	if (width != im.width || height != im.height)
+	{  			
+	  	erase();
+		width = im.width; height=im.height; p = new float[width*height];
+	}
+	
+	for (int j=width*height-1; j>=0 ; j--) p[j] = im.p[j];
+	return *this;	
+}
+
+
+//// Destruction
+void flimage::erase() 
+{
+	width = height = 0; 
+	if (p) delete[] p; 
+	p=0;
+} 
+
+flimage::~flimage()
+{
+	erase();
+}
+
+
+
+