Cycles: Move BVH constants to an own files, so they are easily re-usable

intern/cycles/kernel/CMakeLists.txt

@@ -34,6 +34,7 @@ set(SRC_BVH_HEADERS
 	bvh/bvh_shadow_all.h
 	bvh/bvh_subsurface.h
 	bvh/bvh_traversal.h
+	bvh/bvh_types.h
 	bvh/bvh_volume.h
 	bvh/bvh_volume_all.h
 	bvh/qbvh_nodes.h

intern/cycles/kernel/bvh/bvh.h

@@ -28,54 +28,7 @@
 
 CCL_NAMESPACE_BEGIN
 
-/* Don't inline intersect functions on GPU, this is faster */
-#ifdef __KERNEL_GPU__
-#  define ccl_device_intersect ccl_device_noinline
-#else
-#  define ccl_device_intersect ccl_device_inline
-#endif
-
-/* bottom-most stack entry, indicating the end of traversal */
-#define ENTRYPOINT_SENTINEL 0x76543210
-
-/* 64 object BVH + 64 mesh BVH + 64 object node splitting */
-#define BVH_STACK_SIZE 192
-#define BVH_QSTACK_SIZE 384
-
-/* BVH intersection function variations */
-
-#define BVH_INSTANCING			1
-#define BVH_MOTION				2
-#define BVH_HAIR				4
-#define BVH_HAIR_MINIMUM_WIDTH	8
-
-#define BVH_NAME_JOIN(x,y) x ## _ ## y
-#define BVH_NAME_EVAL(x,y) BVH_NAME_JOIN(x,y)
-#define BVH_FUNCTION_FULL_NAME(prefix) BVH_NAME_EVAL(prefix, BVH_FUNCTION_NAME)
-
-#define BVH_FEATURE(f) (((BVH_FUNCTION_FEATURES) & (f)) != 0)
-
-/* Debugging heleprs */
-#ifdef __KERNEL_DEBUG__
-#  define BVH_DEBUG_INIT() \
-	do { \
-		isect->num_traversal_steps = 0; \
-		isect->num_traversed_instances = 0; \
-	} while(0)
-#  define BVH_DEBUG_NEXT_STEP() \
-	do { \
-		++isect->num_traversal_steps; \
-	} while(0)
-#  define BVH_DEBUG_NEXT_INSTANCE() \
-	do { \
-		++isect->num_traversed_instances; \
-	} while(0)
-#else  /* __KERNEL_DEBUG__ */
-#  define BVH_DEBUG_INIT()
-#  define BVH_DEBUG_NEXT_STEP()
-#  define BVH_DEBUG_NEXT_INSTANCE()
-#endif  /* __KERNEL_DEBUG__ */
-
+#include "bvh_types.h"
 
 /* Common QBVH functions. */
 #ifdef __QBVH__

intern/cycles/kernel/bvh/bvh_types.h

@@ -0,0 +1,73 @@
+/*
+ * Adapted from code Copyright 2009-2010 NVIDIA Corporation
+ * Modifications Copyright 2011, 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 __BVH_TYPES__
+#define __BVH_TYPES__
+
+CCL_NAMESPACE_BEGIN
+
+/* Don't inline intersect functions on GPU, this is faster */
+#ifdef __KERNEL_GPU__
+#  define ccl_device_intersect ccl_device_noinline
+#else
+#  define ccl_device_intersect ccl_device_inline
+#endif
+
+/* bottom-most stack entry, indicating the end of traversal */
+#define ENTRYPOINT_SENTINEL 0x76543210
+
+/* 64 object BVH + 64 mesh BVH + 64 object node splitting */
+#define BVH_STACK_SIZE 192
+#define BVH_QSTACK_SIZE 384
+
+/* BVH intersection function variations */
+
+#define BVH_INSTANCING			1
+#define BVH_MOTION				2
+#define BVH_HAIR				4
+#define BVH_HAIR_MINIMUM_WIDTH	8
+
+#define BVH_NAME_JOIN(x,y) x ## _ ## y
+#define BVH_NAME_EVAL(x,y) BVH_NAME_JOIN(x,y)
+#define BVH_FUNCTION_FULL_NAME(prefix) BVH_NAME_EVAL(prefix, BVH_FUNCTION_NAME)
+
+#define BVH_FEATURE(f) (((BVH_FUNCTION_FEATURES) & (f)) != 0)
+
+/* Debugging heleprs */
+#ifdef __KERNEL_DEBUG__
+#  define BVH_DEBUG_INIT() \
+	do { \
+		isect->num_traversal_steps = 0; \
+		isect->num_traversed_instances = 0; \
+	} while(0)
+#  define BVH_DEBUG_NEXT_STEP() \
+	do { \
+		++isect->num_traversal_steps; \
+	} while(0)
+#  define BVH_DEBUG_NEXT_INSTANCE() \
+	do { \
+		++isect->num_traversed_instances; \
+	} while(0)
+#else  /* __KERNEL_DEBUG__ */
+#  define BVH_DEBUG_INIT()
+#  define BVH_DEBUG_NEXT_STEP()
+#  define BVH_DEBUG_NEXT_INSTANCE()
+#endif  /* __KERNEL_DEBUG__ */
+
+CCL_NAMESPACE_END
+
+#endif  /* __BVH_TYPES__ */