Cycles: remove prefix from source code file names

Remove prefix of filenames that is the same as the folder name. This used
to help when #includes were using individual files, but now they are always
relative to the cycles root directory and so the prefixes are redundant.

For patches and branches, git merge and rebase should be able to detect the
renames and move over code to the right file.

1 files changed, 51 insertions, 0 deletions

diff --git a/intern/cycles/kernel/sample/lcg.h b/intern/cycles/kernel/sample/lcg.h
new file mode 100644
index 00000000000..92cfff639b4
--- /dev/null
+++ b/intern/cycles/kernel/sample/lcg.h
@@ -0,0 +1,51 @@
+/*
+ * 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
+
+CCL_NAMESPACE_BEGIN
+
+/* Linear Congruential Generator */
+
+ccl_device uint lcg_step_uint(uint *rng)
+{
+  /* implicit mod 2^32 */
+  *rng = (1103515245 * (*rng) + 12345);
+  return *rng;
+}
+
+ccl_device float lcg_step_float(uint *rng)
+{
+  /* implicit mod 2^32 */
+  *rng = (1103515245 * (*rng) + 12345);
+  return (float)*rng * (1.0f / (float)0xFFFFFFFF);
+}
+
+ccl_device uint lcg_init(uint seed)
+{
+  uint rng = seed;
+  lcg_step_uint(&rng);
+  return rng;
+}
+
+ccl_device_inline uint lcg_state_init(const uint rng_hash,
+                                      const uint rng_offset,
+                                      const uint sample,
+                                      const uint scramble)
+{
+  return lcg_init(rng_hash + rng_offset + sample * scramble);
+}
+
+CCL_NAMESPACE_END