1 files changed, 86 insertions, 0 deletions
diff --git a/intern/cycles/render/integrator.cpp b/intern/cycles/render/integrator.cpp
new file mode 100644
index 00000000000..30736670cc3
--- /dev/null
+++ b/intern/cycles/render/integrator.cpp
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2011, Blender Foundation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "device.h"
+#include "integrator.h"
+#include "scene.h"
+#include "sobol.h"
+
+CCL_NAMESPACE_BEGIN
+
+Integrator::Integrator()
+{
+	minbounce = 2;
+	maxbounce = 7;
+	no_caustics = false;
+	blur_caustics = 0.0f;
+
+	need_update = true;
+}
+
+Integrator::~Integrator()
+{
+}
+
+void Integrator::device_update(Device *device, DeviceScene *dscene)
+{
+	if(!need_update)
+		return;
+
+	device_free(device, dscene);
+
+	KernelIntegrator *kintegrator = &dscene->data.integrator;
+
+	/* integrator parameters */
+	kintegrator->minbounce = minbounce + 1;
+	kintegrator->maxbounce = maxbounce + 1;
+	kintegrator->no_caustics = no_caustics;
+	kintegrator->blur_caustics = blur_caustics;
+
+	/* sobol directions table */
+	int dimensions = PRNG_BASE_NUM + (maxbounce + 2)*PRNG_BOUNCE_NUM;
+	uint *directions = dscene->sobol_directions.resize(SOBOL_BITS*dimensions);
+
+	sobol_generate_direction_vectors((uint(*)[SOBOL_BITS])directions, dimensions);
+
+	device->tex_alloc("__sobol_directions", dscene->sobol_directions);
+
+	need_update = false;
+}
+
+void Integrator::device_free(Device *device, DeviceScene *dscene)
+{
+	device->tex_free(dscene->sobol_directions);
+	dscene->sobol_directions.clear();
+}
+
+bool Integrator::modified(const Integrator& integrator)
+{
+	return !(minbounce == integrator.minbounce &&
+		maxbounce == integrator.maxbounce &&
+		no_caustics == integrator.no_caustics &&
+		blur_caustics == integrator.blur_caustics);
+}
+
+void Integrator::tag_update(Scene *scene)
+{
+	need_update = true;
+}
+
+CCL_NAMESPACE_END
+