1 files changed, 83 insertions, 0 deletions
diff --git a/intern/cycles/util/util_math_int3.h b/intern/cycles/util/util_math_int3.h
new file mode 100644
index 00000000000..fa7a02636de
--- /dev/null
+++ b/intern/cycles/util/util_math_int3.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2011-2017 Blender Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __UTIL_MATH_INT3_H__
+#define __UTIL_MATH_INT3_H__
+
+#ifndef __UTIL_MATH_H__
+#  error "Do not include this file directly, include util_types.h instead."
+#endif
+
+CCL_NAMESPACE_BEGIN
+
+/*******************************************************************************
+ * Declaration.
+ */
+
+#ifndef __KERNEL_OPENCL__
+ccl_device_inline int3 min(int3 a, int3 b);
+ccl_device_inline int3 max(int3 a, int3 b);
+ccl_device_inline int3 clamp(const int3& a, int mn, int mx);
+ccl_device_inline int3 clamp(const int3& a, int3& mn, int mx);
+#endif  /* !__KERNEL_OPENCL__ */
+
+/*******************************************************************************
+ * Definition.
+ */
+
+#ifndef __KERNEL_OPENCL__
+ccl_device_inline int3 min(int3 a, int3 b)
+{
+#if defined(__KERNEL_SSE__) && defined(__KERNEL_SSE41__)
+	return int3(_mm_min_epi32(a.m128, b.m128));
+#else
+	return make_int3(min(a.x, b.x), min(a.y, b.y), min(a.z, b.z));
+#endif
+}
+
+ccl_device_inline int3 max(int3 a, int3 b)
+{
+#if defined(__KERNEL_SSE__) && defined(__KERNEL_SSE41__)
+	return int3(_mm_max_epi32(a.m128, b.m128));
+#else
+	return make_int3(max(a.x, b.x), max(a.y, b.y), max(a.z, b.z));
+#endif
+}
+
+ccl_device_inline int3 clamp(const int3& a, int mn, int mx)
+{
+#ifdef __KERNEL_SSE__
+	return min(max(a, make_int3(mn)), make_int3(mx));
+#else
+	return make_int3(clamp(a.x, mn, mx), clamp(a.y, mn, mx), clamp(a.z, mn, mx));
+#endif
+}
+
+ccl_device_inline int3 clamp(const int3& a, int3& mn, int mx)
+{
+#ifdef __KERNEL_SSE__
+	return min(max(a, mn), make_int3(mx));
+#else
+	return make_int3(clamp(a.x, mn.x, mx),
+	                 clamp(a.y, mn.y, mx),
+	                 clamp(a.z, mn.z, mx));
+#endif
+}
+#endif  /* !__KERNEL_OPENCL__ */
+
+CCL_NAMESPACE_END
+
+#endif /* __UTIL_MATH_INT3_H__ */