From edd05e4ad726c5aec6807a30dc9ff7de8f97b28b Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@herge.(none)>
Date: Wed, 10 Jul 2013 16:38:13 +0100
Subject: cv::Mat use for images

---
 opencv/cvimage.h | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 52 insertions(+), 4 deletions(-)

(limited to 'opencv/cvimage.h')

diff --git a/opencv/cvimage.h b/opencv/cvimage.h
index b96f704..7588673 100644
--- a/opencv/cvimage.h
+++ b/opencv/cvimage.h
@@ -1,8 +1,21 @@
 #include <math.h>
+#include <cv.h>
 
 using namespace std;
 
 //converting to use a cv image...
+//cv::Mat supports most of what we want here
+//need to think 
+//http://answers.opencv.org/question/8202/using-external-image-data-in-a-cvmat/
+
+//all access to the image is presently through a pointer to the data
+//cv::Mat supports this
+
+//how will copying work?
+//Rotor::Image will contain a cv::Mat object which may own its data or inherit it
+//cv::Mat should take care of reference counting
+
+//can cv::Mat 
 
 namespace Rotor {
 	class pixeltables{
@@ -74,6 +87,13 @@ namespace Rotor {
 				ownsRGBdata=ownsAdata=ownsZdata=false;
 			}
 			bool setup(int _w,int _h){ //set up with internal data
+				rgb.create(_w,_h,CV_8UC3);
+				RGBdata=rgb.data; //can move to use the bare pointer eventually
+				ownsRGBdata=false; //will not be necessary
+				w=_w;
+				h=_h;
+				return true;
+				/*
 				if (w!=_w||h!=_h||!ownsRGBdata||!ownsAdata||!ownsZdata){
 					free();
 					w=_w;
@@ -85,8 +105,18 @@ namespace Rotor {
 					return true;
 				}
 				else return false;
+				*/
 			}
-			bool setup_fromRGB(int _w,int _h,uint8_t *pRGBdata){ //possibility of just resetting pointer?
+			bool setup_fromRGB(int _w,int _h,uint8_t *pRGBdata){ 
+			//here the data belongs to libavcodec or other
+			//could move to using cv::Mat there also and just passing cv:Mat over
+			 	rgb=cv::Mat(_w,_h,CV_8UC3,pRGBdata);
+			 	RGBdata=rgb.data; //can move to use the bare pointer eventually
+				ownsRGBdata=false; //will not be necessary
+				w=_w;
+				h=_h;
+				return true;
+				/*
 				if (w!=_w||h!=_h||ownsRGBdata||!ownsAdata||!ownsZdata){
 					free();
 					w=_w;
@@ -99,14 +129,32 @@ namespace Rotor {
 					return true;
 				}
 				return false;
+				*/
+			}
+			bool setup_fromMat(cv::Mat& othermat){ 
+			//here the mat belongs to another Image object
+			 	rgb=cv::Mat(othermat);
+			 	RGBdata=rgb.data; //can move to use the bare pointer eventually
+				ownsRGBdata=false; //will not be necessary
+				w=rgb.rows;
+				h=rgb.cols;
+				return true;
 			}
 			Image* clone(){
-				Image *t=new Image(w,h);
+				Image *t=new Image();
+				t->rgb=rgb.clone();
+				t->w=w;
+				t->h=h;
+				t->RGBdata=t->rgb.data; //can move to use the bare pointer eventually
+				t->ownsRGBdata=false; //will not be necessary
+				/*
 				for (int i=0;i<w*h*3;i++) {
 					t->RGBdata[i]=RGBdata[i];
 				}
+				*/
 				return t;
 			}
+			//believe these still work, don't know if these optimisations are better than opencvs..
 			Image & operator+=(const Image &other) {
 				if (other.w!=w||other.h!=h) {
 					cerr<<"Rotor: cannot add images with different sizes! (wanted "<<w<<"x"<<h<<", got "<<other.w<<"x"<<other.h<<")"<<endl;
@@ -126,8 +174,6 @@ namespace Rotor {
 				else {
 					for (int i=0;i<w*h*3;i++){
 						//calculate with tables
-						uint8_t p1=RGBdata[i];
-						uint8_t p2=other.RGBdata[i];
 						RGBdata[i]=pixels.multiply[RGBdata[i]][other.RGBdata[i]];
 					}
 				}
@@ -213,5 +259,7 @@ namespace Rotor {
 			uint16_t *Zdata;
 			int h,w;
 			bool ownsRGBdata,ownsAdata,ownsZdata; //better done through auto_ptr?
+
+			cv::Mat rgb;
 	};
 }
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