1 files changed, 101 insertions, 0 deletions
diff --git a/intern/cycles/kernel/device/cpu/compat.h b/intern/cycles/kernel/device/cpu/compat.h
new file mode 100644
index 00000000000..bfd936c7bbd
--- /dev/null
+++ b/intern/cycles/kernel/device/cpu/compat.h
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2011-2013 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.
+ */
+
+#pragma once
+
+#define __KERNEL_CPU__
+
+/* Release kernel has too much false-positive maybe-uninitialized warnings,
+ * which makes it possible to miss actual warnings.
+ */
+#if (defined(__GNUC__) && !defined(__clang__)) && defined(NDEBUG)
+#  pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+#  pragma GCC diagnostic ignored "-Wuninitialized"
+#endif
+
+#include "util/util_half.h"
+#include "util/util_math.h"
+#include "util/util_simd.h"
+#include "util/util_texture.h"
+#include "util/util_types.h"
+
+#define ccl_addr_space
+
+/* On x86_64, versions of glibc < 2.16 have an issue where expf is
+ * much slower than the double version.  This was fixed in glibc 2.16.
+ */
+#if !defined(__KERNEL_GPU__) && defined(__x86_64__) && defined(__x86_64__) && \
+    defined(__GNU_LIBRARY__) && defined(__GLIBC__) && defined(__GLIBC_MINOR__) && \
+    (__GLIBC__ <= 2 && __GLIBC_MINOR__ < 16)
+#  define expf(x) ((float)exp((double)(x)))
+#endif
+
+CCL_NAMESPACE_BEGIN
+
+/* Assertions inside the kernel only work for the CPU device, so we wrap it in
+ * a macro which is empty for other devices */
+
+#define kernel_assert(cond) assert(cond)
+
+/* Texture types to be compatible with CUDA textures. These are really just
+ * simple arrays and after inlining fetch hopefully revert to being a simple
+ * pointer lookup. */
+template<typename T> struct texture {
+  ccl_always_inline const T &fetch(int index) const
+  {
+    kernel_assert(index >= 0 && index < width);
+    return data[index];
+  }
+
+  T *data;
+  int width;
+};
+
+/* Macros to handle different memory storage on different devices */
+
+#ifdef __KERNEL_SSE2__
+typedef vector3<sseb> sse3b;
+typedef vector3<ssef> sse3f;
+typedef vector3<ssei> sse3i;
+
+ccl_device_inline void print_sse3b(const char *label, sse3b &a)
+{
+  print_sseb(label, a.x);
+  print_sseb(label, a.y);
+  print_sseb(label, a.z);
+}
+
+ccl_device_inline void print_sse3f(const char *label, sse3f &a)
+{
+  print_ssef(label, a.x);
+  print_ssef(label, a.y);
+  print_ssef(label, a.z);
+}
+
+ccl_device_inline void print_sse3i(const char *label, sse3i &a)
+{
+  print_ssei(label, a.x);
+  print_ssei(label, a.y);
+  print_ssei(label, a.z);
+}
+
+#  if defined(__KERNEL_AVX__) || defined(__KERNEL_AVX2__)
+typedef vector3<avxf> avx3f;
+#  endif
+
+#endif
+
+CCL_NAMESPACE_END