Replace the C++ implementation with the Rust port

The Rust port (formerly gipfel-rs) is now the official successor to the
FLTK/GSL C++ code base. This squashes the port into a single commit and
removes the C++ sources (they remain in the git history below).

Layout:
  crates/gipfel-core  headless core: hills, panorama geometry, projections
                      (maxima-generated derivatives), pure-Rust LM fit,
                      gipfel: JPEG comment + EXIF I/O, profiles, stitching
  crates/gipfel-cli   command-line tools (export, info, stitch, profiles)
  crates/gipfel-app   Cosmic DE (libcosmic) GUI, binary name `gipfel`
  codegen/            maxima scripts + regen.sh for the projection code
  tests/              golden files + C++ reference harnesses (historical)

The original README is kept for now; it will be updated to describe the
Rust build. gipfel.dat, AUTHORS, ChangeLog and NEWS are unchanged.

1 files changed, 0 insertions, 117 deletions

diff --git a/src/Stitch.cxx b/src/Stitch.cxx
deleted file mode 100644
index 7b9fc04..0000000
--- a/src/Stitch.cxx
+++ /dev/null
@@ -1,117 +0,0 @@
-//
-// Copyright 2007-2009 Johannes Hofmann <Johannes.Hofmann@gmx.de>
-//
-// This software may be used and distributed according to the terms
-// of the GNU General Public License, incorporated herein by reference.
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <math.h>
-#include <algorithm>
-
-#include <gsl/gsl_multifit.h>
-
-#include <FL/Fl.H>
-
-#include "OutputImage.H"
-#include "Stitch.H"
-
-#define MAX_VALUE 65025
-
-static double pi_d = asin(1.0) * 2.0;
-static double deg2rad = pi_d / 180.0;
-
-Stitch::Stitch() {
-	for (int i = 0; i < MAX_PICS; i++)
-		gipf[i] = NULL;
-
-	merged_image = NULL;
-	num_pics = 0;
-}
-
-Stitch::~Stitch() {
-	for (int i = 0; i < MAX_PICS; i++)
-		if (gipf[i])
-			delete gipf[i];
-		else
-			break;
-}
-
-int
-Stitch::load_image(char *file) {
-	for (int i = 0; i < MAX_PICS; i++) {
-		if (gipf[i] == NULL) {
-			gipf[i] = new GipfelWidget(0, 0, 800, 600, NULL);
-			if (gipf[i]->load_image(file) != 0) {
-				delete gipf[i];
-				gipf[i] = NULL;
-			} else {
-				num_pics++;
-			}
-			break;
-		}
-	}
-
-	return 0;
-}
-
-OutputImage*
-Stitch::set_output(OutputImage *img) {
-	OutputImage *ret = merged_image;
-	merged_image = img;
-	return ret;
-}
-
-int
-Stitch::resample(ScanImage::mode_t m,
-	int w, int h, double view_start, double view_end) {
-
-	view_start = view_start * deg2rad;
-	view_end = view_end * deg2rad;
-
-	double step_view = (view_end - view_start) / w;
-	int r, g, b;
-	int y_off = h / 2;
-	int merged_pixel_set;
-	double radius = (double) w / (view_end -view_start);
-
-	if (merged_image)
-		if (merged_image->init(w, h) != 0)
-			merged_image = NULL;
-
-	for (int y = 0; y < h; y++) {
-		double a_nick = atan((double)(y_off - y)/radius);
-
-		for (int x = 0; x < w; x++) {
-			double a_view;
-			a_view = view_start + x * step_view;
-			merged_pixel_set = 0;
-			for (int i = 0; i < num_pics; i++) {
-				if (merged_pixel_set)
-					continue;
-
-				if (gipf[i]->get_pixel(m, a_view, a_nick,
-						&r, &g, &b) == 0) {
-
-					r = std::max(std::min(r, MAX_VALUE), 0);
-					g = std::max(std::min(g, MAX_VALUE), 0);
-					b = std::max(std::min(b, MAX_VALUE), 0);
-
-					if (!merged_pixel_set && merged_image) {
-						merged_image->set_pixel(x, r, g, b);
-						merged_pixel_set++;
-					}
-				}
-			}
-		}
-
-		if (merged_image)
-			merged_image->next_line();
-	}
-
-	if (merged_image)
-		merged_image->done();
-
-	return 0;
-}