Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 34 insertions, 0 deletions

diff --git a/src/boost/libs/gil/example/affine.cpp b/src/boost/libs/gil/example/affine.cpp
new file mode 100644
index 00000000..a54cfaa1
--- /dev/null
+++ b/src/boost/libs/gil/example/affine.cpp
@@ -0,0 +1,34 @@
+//
+// Copyright 2005-2007 Adobe Systems Incorporated
+//
+// Distributed under the Boost Software License, Version 1.0
+// See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt
+//
+#include <boost/gil.hpp>
+#include <boost/gil/extension/io/jpeg.hpp>
+#include <boost/gil/extension/numeric/sampler.hpp>
+#include <boost/gil/extension/numeric/resample.hpp>
+
+// Example for resample_pixels() in the numeric extension
+
+int main()
+{
+    namespace gil = boost::gil;
+
+    gil::rgb8_image_t img;
+    gil::read_image("test.jpg", img, gil::jpeg_tag());
+
+    // test resample_pixels
+    // Transform the image by an arbitrary affine transformation using nearest-neighbor resampling
+    gil::rgb8_image_t transf(gil::rgb8_image_t::point_t(gil::view(img).dimensions() * 2));
+    gil::fill_pixels(gil::view(transf), gil::rgb8_pixel_t(255, 0, 0)); // the background is red
+
+    gil::matrix3x2<double> mat =
+        gil::matrix3x2<double>::get_translate(-gil::point<double>(200,250)) *
+        gil::matrix3x2<double>::get_rotate(-15*3.14/180.0);
+    gil::resample_pixels(const_view(img), gil::view(transf), mat, gil::nearest_neighbor_sampler());
+    gil::write_view("out-affine.jpg", gil::view(transf), gil::jpeg_tag());
+
+    return 0;
+}