1 files changed, 83 insertions, 0 deletions
diff --git a/intern/cycles/util/util_aligned_malloc.cpp b/intern/cycles/util/util_aligned_malloc.cpp
new file mode 100644
index 00000000000..b161a55c15e
--- /dev/null
+++ b/intern/cycles/util/util_aligned_malloc.cpp
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2011-2015 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.
+ */
+
+#include "util_aligned_malloc.h"
+#include "util_guarded_allocator.h"
+
+#include <cassert>
+
+/* Adopted from Libmv. */
+
+#if !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__NetBSD__)
+/* Needed for memalign on Linux and _aligned_alloc on Windows. */
+#  ifdef FREE_WINDOWS
+/* Make sure _aligned_malloc is included. */
+#    ifdef __MSVCRT_VERSION__
+#      undef __MSVCRT_VERSION__
+#    endif
+#    define __MSVCRT_VERSION__ 0x0700
+#  endif  /* FREE_WINDOWS */
+#  include <malloc.h>
+#else
+/* Apple's malloc is 16-byte aligned, and does not have malloc.h, so include
+ * stdilb instead.
+ */
+#  include <cstdlib>
+#endif
+
+CCL_NAMESPACE_BEGIN
+
+void *util_aligned_malloc(size_t size, int alignment)
+{
+#ifdef WITH_BLENDER_GUARDEDALLOC
+	return MEM_mallocN_aligned(size, alignment, "Cycles Aligned Alloc");
+#endif
+#ifdef _WIN32
+	return _aligned_malloc(size, alignment);
+#elif defined(__APPLE__)
+	/* On Mac OS X, both the heap and the stack are guaranteed 16-byte aligned so
+	 * they work natively with SSE types with no further work.
+	 */
+	assert(alignment == 16);
+	return malloc(size);
+#elif defined(__FreeBSD__) || defined(__NetBSD__)
+	void *result;
+	if(posix_memalign(&result, alignment, size)) {
+		/* Non-zero means allocation error
+		 * either no allocation or bad alignment value.
+		 */
+		return NULL;
+	}
+	return result;
+#else  /* This is for Linux. */
+	return memalign(alignment, size);
+#endif
+}
+
+void util_aligned_free(void *ptr)
+{
+#if defined(WITH_BLENDER_GUARDEDALLOC)
+	if(ptr != NULL) {
+		MEM_freeN(ptr);
+	}
+#elif defined(_WIN32)
+	_aligned_free(ptr);
+#else
+	free(ptr);
+#endif
+}
+
+CCL_NAMESPACE_END