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* Remove specific license info from outdated readme.txt, instead leave details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

15 files changed, 31 insertions, 211 deletions

diff --git a/intern/cycles/test/CMakeLists.txt b/intern/cycles/test/CMakeLists.txt
index b2c67b3635c..a2a51dc47fd 100644
--- a/intern/cycles/test/CMakeLists.txt
+++ b/intern/cycles/test/CMakeLists.txt
@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: Apache-2.0
-# Copyright 2011-2020 Blender Foundation
+# Copyright 2011-2022 Blender Foundation
 
 if(WITH_GTESTS)
   Include(GTestTesting)
diff --git a/intern/cycles/test/integrator_adaptive_sampling_test.cpp b/intern/cycles/test/integrator_adaptive_sampling_test.cpp
index 30688605e44..a9cd56e8f0d 100644
--- a/intern/cycles/test/integrator_adaptive_sampling_test.cpp
+++ b/intern/cycles/test/integrator_adaptive_sampling_test.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 "testing/testing.h"
 
diff --git a/intern/cycles/test/integrator_render_scheduler_test.cpp b/intern/cycles/test/integrator_render_scheduler_test.cpp
index b4efbc2d1a7..f9ad648d501 100644
--- a/intern/cycles/test/integrator_render_scheduler_test.cpp
+++ b/intern/cycles/test/integrator_render_scheduler_test.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 "testing/testing.h"
 
diff --git a/intern/cycles/test/integrator_tile_test.cpp b/intern/cycles/test/integrator_tile_test.cpp
index 1d078a2d19a..5a2c2ba38e7 100644
--- a/intern/cycles/test/integrator_tile_test.cpp
+++ b/intern/cycles/test/integrator_tile_test.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 "testing/testing.h"
 
diff --git a/intern/cycles/test/render_graph_finalize_test.cpp b/intern/cycles/test/render_graph_finalize_test.cpp
index 390d3a2d5f8..143628f1e30 100644
--- a/intern/cycles/test/render_graph_finalize_test.cpp
+++ b/intern/cycles/test/render_graph_finalize_test.cpp
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2016 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 "testing/mock_log.h"
 #include "testing/testing.h"
diff --git a/intern/cycles/test/util_aligned_malloc_test.cpp b/intern/cycles/test/util_aligned_malloc_test.cpp
index 2748db520eb..1d65620b8d7 100644
--- a/intern/cycles/test/util_aligned_malloc_test.cpp
+++ b/intern/cycles/test/util_aligned_malloc_test.cpp
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2016 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 "testing/testing.h"
 
diff --git a/intern/cycles/test/util_avxf_avx2_test.cpp b/intern/cycles/test/util_avxf_avx2_test.cpp
index 4a98a6fca73..c50fb8cd75c 100644
--- a/intern/cycles/test/util_avxf_avx2_test.cpp
+++ b/intern/cycles/test/util_avxf_avx2_test.cpp
@@ -1,18 +1,6 @@
-/*
- * Copyright 2011-2016 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 */
+
 #define __KERNEL_AVX2__
 #define __KERNEL_CPU__
 
diff --git a/intern/cycles/test/util_avxf_avx_test.cpp b/intern/cycles/test/util_avxf_avx_test.cpp
index 2ae8afd52ea..b6a5491bcf1 100644
--- a/intern/cycles/test/util_avxf_avx_test.cpp
+++ b/intern/cycles/test/util_avxf_avx_test.cpp
@@ -1,18 +1,6 @@
-/*
- * Copyright 2011-2016 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 */
+
 #define __KERNEL_AVX__
 #define __KERNEL_CPU__
 
diff --git a/intern/cycles/test/util_avxf_test.h b/intern/cycles/test/util_avxf_test.h
index 344be4b3a2c..34d966cc1a4 100644
--- a/intern/cycles/test/util_avxf_test.h
+++ b/intern/cycles/test/util_avxf_test.h
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2016 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 "testing/testing.h"
 #include "util/system.h"
diff --git a/intern/cycles/test/util_math_test.cpp b/intern/cycles/test/util_math_test.cpp
index adbedf7adbe..6169184b31a 100644
--- a/intern/cycles/test/util_math_test.cpp
+++ b/intern/cycles/test/util_math_test.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 "testing/testing.h"
 
diff --git a/intern/cycles/test/util_path_test.cpp b/intern/cycles/test/util_path_test.cpp
index 7afdd1150a4..79789a1d3ed 100644
--- a/intern/cycles/test/util_path_test.cpp
+++ b/intern/cycles/test/util_path_test.cpp
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2016 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 "testing/testing.h"
 
diff --git a/intern/cycles/test/util_string_test.cpp b/intern/cycles/test/util_string_test.cpp
index f558dda9e47..17019d65625 100644
--- a/intern/cycles/test/util_string_test.cpp
+++ b/intern/cycles/test/util_string_test.cpp
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2016 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 "testing/testing.h"
 
diff --git a/intern/cycles/test/util_task_test.cpp b/intern/cycles/test/util_task_test.cpp
index 17cfe4ff9b2..fe4e09f3b98 100644
--- a/intern/cycles/test/util_task_test.cpp
+++ b/intern/cycles/test/util_task_test.cpp
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2016 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 "testing/testing.h"
 
diff --git a/intern/cycles/test/util_time_test.cpp b/intern/cycles/test/util_time_test.cpp
index 97a0134df67..0670ca2ca06 100644
--- a/intern/cycles/test/util_time_test.cpp
+++ b/intern/cycles/test/util_time_test.cpp
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2019 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 "testing/testing.h"
 
diff --git a/intern/cycles/test/util_transform_test.cpp b/intern/cycles/test/util_transform_test.cpp
index 11dd71ea0c2..bb74ce58461 100644
--- a/intern/cycles/test/util_transform_test.cpp
+++ b/intern/cycles/test/util_transform_test.cpp
@@ -1,18 +1,5 @@
-/*
- * Copyright 2011-2020 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 "testing/testing.h"