--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/sampler.cc	Wed Mar 26 14:29:21 2008 +0100
@@ -0,0 +1,85 @@
+/*
+ * scene.cc: screen sample generation and image reconstruction
+ *
+ * This file is part of Pyrit Ray Tracer.
+ *
+ * Copyright 2008  Radek Brich
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <math.h>
+
+#include "common.h"
+#include "scene.h"
+
+int DefaultSampler::initSampleSet()
+{
+	if ( phase == 0 )
+	{
+		phase++;
+		return w*h;
+	}
+	else
+	{
+		phase = -1;
+		return 0;
+	}
+}
+
+Sample* DefaultSampler::nextSample(Sample *prev)
+{
+	DefaultSample *s = new DefaultSample;
+	if (prev)
+	{
+		DefaultSample *sp = static_cast<DefaultSample*>(prev);
+		s->sx = sp->sx + 1;
+		s->sy = sp->sy;
+		if (s->sx >= w)
+		{
+			s->sx = 0;
+			s->sy++;
+		}
+		if (s->sy >= h)
+		{
+			delete s;
+			return NULL;
+		}
+		s->x = (Float)s->sx/h - (Float)w/h/2.0;
+		s->y = (Float)s->sy/h - 0.5;
+	}
+	else
+	{
+		s->x = -(Float)w/h/2.0;
+		s->y = -0.5;
+		s->sx = 0;
+		s->sy = 0;
+	}
+	return s;
+}
+
+void DefaultSampler::saveSample(Sample *samp, Colour &col)
+{
+	DefaultSample *sp = static_cast<DefaultSample*>(samp);
+	Float *buf = buffer + 3*(sp->sy*w + sp->sx);
+	*(buf++) = col.r;
+	*(buf++) = col.g;
+	*(buf++) = col.b;
+}
+