Cycles: use SPDX license headers

* Replace license text in headers with SPDX identifiers.
* Remove specific license info from outdated readme.txt, instead leave details
  to the source files.
* Add list of SPDX license identifiers used, and corresponding license texts.
* Update copyright dates while we're at it.

Ref D14069, T95597

12 files changed, 24 insertions, 180 deletions

diff --git a/intern/cycles/device/hip/device.cpp b/intern/cycles/device/hip/device.cpp
index a9c7b1ba841..d6a5ed9c419 100644
--- a/intern/cycles/device/hip/device.cpp
+++ b/intern/cycles/device/hip/device.cpp
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2021 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.
- */
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright 2011-2022 Blender Foundation */
 
 #include "device/hip/device.h"
 
diff --git a/intern/cycles/device/hip/device.h b/intern/cycles/device/hip/device.h
index cdbe364b2b3..711a86643ac 100644
--- a/intern/cycles/device/hip/device.h
+++ b/intern/cycles/device/hip/device.h
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2021 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.
- */
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright 2011-2022 Blender Foundation */
 
 #pragma once
 
diff --git a/intern/cycles/device/hip/device_impl.cpp b/intern/cycles/device/hip/device_impl.cpp
index 85ed3dc5b55..7159277b325 100644
--- a/intern/cycles/device/hip/device_impl.cpp
+++ b/intern/cycles/device/hip/device_impl.cpp
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2021 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.
- */
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright 2011-2022 Blender Foundation */
 
 #ifdef WITH_HIP
 
diff --git a/intern/cycles/device/hip/device_impl.h b/intern/cycles/device/hip/device_impl.h
index 08a7be57e9c..00269ac287c 100644
--- a/intern/cycles/device/hip/device_impl.h
+++ b/intern/cycles/device/hip/device_impl.h
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2021 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.
- */
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright 2011-2022 Blender Foundation */
 
 #ifdef WITH_HIP
 
diff --git a/intern/cycles/device/hip/graphics_interop.cpp b/intern/cycles/device/hip/graphics_interop.cpp
index 0d5d71019b3..516d365973a 100644
--- a/intern/cycles/device/hip/graphics_interop.cpp
+++ b/intern/cycles/device/hip/graphics_interop.cpp
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2021 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.
- */
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright 2011-2022 Blender Foundation */
 
 #ifdef WITH_HIP
 
diff --git a/intern/cycles/device/hip/graphics_interop.h b/intern/cycles/device/hip/graphics_interop.h
index 71c6893edbd..fad258d10a7 100644
--- a/intern/cycles/device/hip/graphics_interop.h
+++ b/intern/cycles/device/hip/graphics_interop.h
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2021 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.
- */
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright 2011-2022 Blender Foundation */
 
 #ifdef WITH_HIP
 
diff --git a/intern/cycles/device/hip/kernel.cpp b/intern/cycles/device/hip/kernel.cpp
index 9ede8507a0c..930215ba794 100644
--- a/intern/cycles/device/hip/kernel.cpp
+++ b/intern/cycles/device/hip/kernel.cpp
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2021 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.
- */
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright 2011-2022 Blender Foundation */
 
 #ifdef WITH_HIP
 
diff --git a/intern/cycles/device/hip/kernel.h b/intern/cycles/device/hip/kernel.h
index f1378f8eebf..ba470a02195 100644
--- a/intern/cycles/device/hip/kernel.h
+++ b/intern/cycles/device/hip/kernel.h
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2021 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.
- */
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright 2011-2022 Blender Foundation */
 
 #pragma once
 
diff --git a/intern/cycles/device/hip/queue.cpp b/intern/cycles/device/hip/queue.cpp
index 81b283e8cf5..42778bc31cf 100644
--- a/intern/cycles/device/hip/queue.cpp
+++ b/intern/cycles/device/hip/queue.cpp
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2021 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.
- */
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright 2011-2022 Blender Foundation */
 
 #ifdef WITH_HIP
 
diff --git a/intern/cycles/device/hip/queue.h b/intern/cycles/device/hip/queue.h
index 8040d367798..11f60d04ad4 100644
--- a/intern/cycles/device/hip/queue.h
+++ b/intern/cycles/device/hip/queue.h
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2021 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.
- */
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright 2011-2022 Blender Foundation */
 
 #pragma once
 
diff --git a/intern/cycles/device/hip/util.cpp b/intern/cycles/device/hip/util.cpp
index 44f52c4e17b..85acb189641 100644
--- a/intern/cycles/device/hip/util.cpp
+++ b/intern/cycles/device/hip/util.cpp
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2021 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.
- */
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright 2011-2022 Blender Foundation */
 
 #ifdef WITH_HIP
 
diff --git a/intern/cycles/device/hip/util.h b/intern/cycles/device/hip/util.h
index e9420becb2d..adb68a2d44c 100644
--- a/intern/cycles/device/hip/util.h
+++ b/intern/cycles/device/hip/util.h
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2021 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.
- */
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright 2011-2022 Blender Foundation */
 
 #pragma once