Write C++ libdimension-png wrapper.

1 files changed, 102 insertions, 0 deletions

diff --git a/tests/pngxx.cpp b/tests/pngxx.cpp
new file mode 100644
index 0000000..ed7cffd
--- /dev/null
+++ b/tests/pngxx.cpp
@@ -0,0 +1,102 @@
+/*************************************************************************
+ * Copyright (C) 2008 Tavian Barnes <tavianator@gmail.com>               *
+ *                                                                       *
+ * This file is part of The Dimension Test Suite.                        *
+ *                                                                       *
+ * Dimension is free software; you can redistribute it and/or modify it  *
+ * under the terms of the GNU Lesser General Public License as published *
+ * by the Free Software Foundation; either version 3 of the License, or  *
+ * (at your option) any later version.                                   *
+ *                                                                       *
+ * Dimension 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     *
+ * Lesser General Public License for more details.                       *
+ *                                                                       *
+ * You should have received a copy of the GNU Lesser General Public      *
+ * License along with this program.  If not, see                         *
+ * <http://www.gnu.org/licenses/>.                                       *
+ *************************************************************************/
+
+#include "../libdimensionxx/dimensionxx.hpp"
+#include <fstream>
+
+int
+main()
+{
+  dmnsn_set_resilience(DMNSN_SEVERITY_LOW);
+
+  const unsigned int width = 333, height = 300;
+
+  {
+    std::ofstream ofstr("dimensionxx1.png", std::ios::binary);
+    Dimension::PNG_Canvas ocanvas(3*width, height, ofstr);
+
+    Dimension::CIE_xyY xyY;
+    Dimension::CIE_Lab Lab;
+    Dimension::CIE_Luv Luv;
+    Dimension::sRGB RGB;
+    Dimension::Color color;
+
+    for (unsigned int x = 0; x < width; ++x) {
+      for (unsigned int y = 0; y < height; ++y) {
+        /* CIE xyY colorspace */
+        xyY = Dimension::CIE_xyY(static_cast<double>(x)/(width - 1),
+                                 static_cast<double>(y)/(height - 1),
+                                 0.5);
+        color = xyY;
+        RGB = color;
+
+        if (RGB.R() > 1.0 || RGB.G() > 1.0 || RGB.B() > 1.0
+            || RGB.R() < 0.0 || RGB.G() < 0.0 || RGB.B() < 0.0) {
+          /* Out of sRGB gamut */
+          color.trans(0.5);
+        }
+
+        ocanvas.pixel(x, y, color);
+
+        /* CIE Lab colorspace */
+
+        Lab = Dimension::CIE_Lab(75.0,
+                                 200.0*(static_cast<double>(x)/
+                                        (width - 1) - 0.5),
+                                 200.0*(static_cast<double>(y)/
+                                        (height - 1) - 0.5));
+        color = Lab;
+        RGB = color;
+
+        if (RGB.R() > 1.0 || RGB.G() > 1.0 || RGB.B() > 1.0
+            || RGB.R() < 0.0 || RGB.G() < 0.0 || RGB.B() < 0.0) {
+          /* Out of sRGB gamut */
+          color.trans(0.5);
+        }
+
+        ocanvas.pixel(x + width, y, color);
+
+        /* CIE Luv colorspace */
+
+        Luv = Dimension::CIE_Luv(75.0,
+                                 200.0*(static_cast<double>(x)/
+                                        (width - 1) - 0.5),
+                                 200.0*(static_cast<double>(y)/
+                                        (height - 1) - 0.5));
+        color = Luv;
+        RGB = color;
+
+        if (RGB.R() > 1.0 || RGB.G() > 1.0 || RGB.B() > 1.0
+            || RGB.R() < 0.0 || RGB.G() < 0.0 || RGB.B() < 0.0) {
+          /* Out of sRGB gamut */
+          color.trans(0.5);
+        }
+
+        ocanvas.pixel(x + 2*width, y, color);
+      }
+    }
+  }
+
+  std::ifstream ifstr("dimensionxx1.png", std::ios::binary);
+  std::ofstream ofstr("dimensionxx2.png", std::ios::binary);
+  Dimension::PNG_Canvas iocanvas(ifstr, ofstr);
+
+  return 0;
+}