File headers: SPDX License migration

Use a shorter/simpler license convention, stops the header taking so
much space.

Follow the SPDX license specification: https://spdx.org/licenses

- C/C++/objc/objc++
- Python
- Shell Scripts
- CMake, GNUmakefile

While most of the source tree has been included

- `./extern/` was left out.
- `./intern/cycles` & `./intern/atomic` are also excluded because they
  use different header conventions.

doc/license/SPDX-license-identifiers.txt has been added to list SPDX all
used identifiers.

See P2788 for the script that automated these edits.

Reviewed By: brecht, mont29, sergey

Ref D14069

37 files changed, 71 insertions, 655 deletions

diff --git a/source/blender/gpu/opengl/gl_backend.cc b/source/blender/gpu/opengl/gl_backend.cc
index 2ee7c0503f4..7a1674a5f01 100644
--- a/source/blender/gpu/opengl/gl_backend.cc
+++ b/source/blender/gpu/opengl/gl_backend.cc
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * Copyright 2020, Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_backend.hh b/source/blender/gpu/opengl/gl_backend.hh
index abac9174d4a..9d637d7b6af 100644
--- a/source/blender/gpu/opengl/gl_backend.hh
+++ b/source/blender/gpu/opengl/gl_backend.hh
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * Copyright 2020, Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_batch.cc b/source/blender/gpu/opengl/gl_batch.cc
index 83cb0ddd053..e738413879e 100644
--- a/source/blender/gpu/opengl/gl_batch.cc
+++ b/source/blender/gpu/opengl/gl_batch.cc
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2016 by Mike Erwin.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2016 by Mike Erwin. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_batch.hh b/source/blender/gpu/opengl/gl_batch.hh
index 4e6e25cdb0f..a25e495b3b1 100644
--- a/source/blender/gpu/opengl/gl_batch.hh
+++ b/source/blender/gpu/opengl/gl_batch.hh
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * Copyright 2020, Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_compute.cc b/source/blender/gpu/opengl/gl_compute.cc
index 14164ee181b..4e178f74d8b 100644
--- a/source/blender/gpu/opengl/gl_compute.cc
+++ b/source/blender/gpu/opengl/gl_compute.cc
@@ -1,18 +1,4 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_compute.hh b/source/blender/gpu/opengl/gl_compute.hh
index 2fd918ddd10..702089904e6 100644
--- a/source/blender/gpu/opengl/gl_compute.hh
+++ b/source/blender/gpu/opengl/gl_compute.hh
@@ -1,18 +1,4 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_context.cc b/source/blender/gpu/opengl/gl_context.cc
index 09bc0aa6e58..72892ffcd34 100644
--- a/source/blender/gpu/opengl/gl_context.cc
+++ b/source/blender/gpu/opengl/gl_context.cc
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * Copyright 2020, Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_context.hh b/source/blender/gpu/opengl/gl_context.hh
index b7a74863ac4..fe2ad0a4747 100644
--- a/source/blender/gpu/opengl/gl_context.hh
+++ b/source/blender/gpu/opengl/gl_context.hh
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * Copyright 2020, Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_debug.cc b/source/blender/gpu/opengl/gl_debug.cc
index 95dea43636d..ea373afac7d 100644
--- a/source/blender/gpu/opengl/gl_debug.cc
+++ b/source/blender/gpu/opengl/gl_debug.cc
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2005 Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2005 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_debug.hh b/source/blender/gpu/opengl/gl_debug.hh
index 7917c05f94b..e24b6f2bb23 100644
--- a/source/blender/gpu/opengl/gl_debug.hh
+++ b/source/blender/gpu/opengl/gl_debug.hh
@@ -1,18 +1,4 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_debug_layer.cc b/source/blender/gpu/opengl/gl_debug_layer.cc
index b82bf10ebe9..c02b6b26068 100644
--- a/source/blender/gpu/opengl/gl_debug_layer.cc
+++ b/source/blender/gpu/opengl/gl_debug_layer.cc
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2005 Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2005 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_drawlist.cc b/source/blender/gpu/opengl/gl_drawlist.cc
index 8b000784fc8..2f87c859273 100644
--- a/source/blender/gpu/opengl/gl_drawlist.cc
+++ b/source/blender/gpu/opengl/gl_drawlist.cc
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2016 by Mike Erwin.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2016 by Mike Erwin. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_drawlist.hh b/source/blender/gpu/opengl/gl_drawlist.hh
index bb7b89ca707..0112ba7a6b2 100644
--- a/source/blender/gpu/opengl/gl_drawlist.hh
+++ b/source/blender/gpu/opengl/gl_drawlist.hh
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2020 Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_framebuffer.cc b/source/blender/gpu/opengl/gl_framebuffer.cc
index 106a12bfefd..57eeabba0a0 100644
--- a/source/blender/gpu/opengl/gl_framebuffer.cc
+++ b/source/blender/gpu/opengl/gl_framebuffer.cc
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2020 Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_framebuffer.hh b/source/blender/gpu/opengl/gl_framebuffer.hh
index 00a7676dd3f..3927ff27532 100644
--- a/source/blender/gpu/opengl/gl_framebuffer.hh
+++ b/source/blender/gpu/opengl/gl_framebuffer.hh
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2020 Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_immediate.cc b/source/blender/gpu/opengl/gl_immediate.cc
index 2f7fa5a78fc..cfedfe348f1 100644
--- a/source/blender/gpu/opengl/gl_immediate.cc
+++ b/source/blender/gpu/opengl/gl_immediate.cc
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2016 by Mike Erwin.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2016 by Mike Erwin. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_immediate.hh b/source/blender/gpu/opengl/gl_immediate.hh
index 235bc1254f2..eb94dc20e21 100644
--- a/source/blender/gpu/opengl/gl_immediate.hh
+++ b/source/blender/gpu/opengl/gl_immediate.hh
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2016 by Mike Erwin.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2016 by Mike Erwin. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_index_buffer.cc b/source/blender/gpu/opengl/gl_index_buffer.cc
index 82bab460ae3..8cedb831272 100644
--- a/source/blender/gpu/opengl/gl_index_buffer.cc
+++ b/source/blender/gpu/opengl/gl_index_buffer.cc
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2020 Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_index_buffer.hh b/source/blender/gpu/opengl/gl_index_buffer.hh
index aaec10d43b3..8a10884d48b 100644
--- a/source/blender/gpu/opengl/gl_index_buffer.hh
+++ b/source/blender/gpu/opengl/gl_index_buffer.hh
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2020 Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_primitive.hh b/source/blender/gpu/opengl/gl_primitive.hh
index 05a15017c66..2a8590e8b3e 100644
--- a/source/blender/gpu/opengl/gl_primitive.hh
+++ b/source/blender/gpu/opengl/gl_primitive.hh
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2020 Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_query.cc b/source/blender/gpu/opengl/gl_query.cc
index da9770b4cc1..3195ec95ed2 100644
--- a/source/blender/gpu/opengl/gl_query.cc
+++ b/source/blender/gpu/opengl/gl_query.cc
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * Copyright 2020, Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_query.hh b/source/blender/gpu/opengl/gl_query.hh
index 2848a7abb8b..0dc4a6b8d51 100644
--- a/source/blender/gpu/opengl/gl_query.hh
+++ b/source/blender/gpu/opengl/gl_query.hh
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * Copyright 2020, Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_shader.cc b/source/blender/gpu/opengl/gl_shader.cc
index 9da35a2bc97..f6b1f5184bd 100644
--- a/source/blender/gpu/opengl/gl_shader.cc
+++ b/source/blender/gpu/opengl/gl_shader.cc
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2020 Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_shader.hh b/source/blender/gpu/opengl/gl_shader.hh
index cc1c93142f8..86281d231a8 100644
--- a/source/blender/gpu/opengl/gl_shader.hh
+++ b/source/blender/gpu/opengl/gl_shader.hh
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2020 Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_shader_interface.cc b/source/blender/gpu/opengl/gl_shader_interface.cc
index 0a31f8dee7f..65235cfa88b 100644
--- a/source/blender/gpu/opengl/gl_shader_interface.cc
+++ b/source/blender/gpu/opengl/gl_shader_interface.cc
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2016 by Mike Erwin.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2016 by Mike Erwin. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_shader_interface.hh b/source/blender/gpu/opengl/gl_shader_interface.hh
index 94b6dd58316..e3dce31758b 100644
--- a/source/blender/gpu/opengl/gl_shader_interface.hh
+++ b/source/blender/gpu/opengl/gl_shader_interface.hh
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2020 Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_shader_log.cc b/source/blender/gpu/opengl/gl_shader_log.cc
index ec13bc44136..1d922916e4c 100644
--- a/source/blender/gpu/opengl/gl_shader_log.cc
+++ b/source/blender/gpu/opengl/gl_shader_log.cc
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2021 Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2021 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_state.cc b/source/blender/gpu/opengl/gl_state.cc
index c6c013fcf3a..264e605798f 100644
--- a/source/blender/gpu/opengl/gl_state.cc
+++ b/source/blender/gpu/opengl/gl_state.cc
@@ -1,20 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * Copyright 2020, Blender Foundation.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_state.hh b/source/blender/gpu/opengl/gl_state.hh
index 5985f1583f2..f29eefbca82 100644
--- a/source/blender/gpu/opengl/gl_state.hh
+++ b/source/blender/gpu/opengl/gl_state.hh
@@ -1,20 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * Copyright 2020, Blender Foundation.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_texture.cc b/source/blender/gpu/opengl/gl_texture.cc
index d84d21d3021..22af2dd463f 100644
--- a/source/blender/gpu/opengl/gl_texture.cc
+++ b/source/blender/gpu/opengl/gl_texture.cc
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2020 Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_texture.hh b/source/blender/gpu/opengl/gl_texture.hh
index e786eaed38a..07d3bb8c946 100644
--- a/source/blender/gpu/opengl/gl_texture.hh
+++ b/source/blender/gpu/opengl/gl_texture.hh
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2020 Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_uniform_buffer.cc b/source/blender/gpu/opengl/gl_uniform_buffer.cc
index ecb233f2e5a..b8bcaf0047e 100644
--- a/source/blender/gpu/opengl/gl_uniform_buffer.cc
+++ b/source/blender/gpu/opengl/gl_uniform_buffer.cc
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2020 Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_uniform_buffer.hh b/source/blender/gpu/opengl/gl_uniform_buffer.hh
index d7b9982dfb8..8d945a8e7dc 100644
--- a/source/blender/gpu/opengl/gl_uniform_buffer.hh
+++ b/source/blender/gpu/opengl/gl_uniform_buffer.hh
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2020 Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_vertex_array.cc b/source/blender/gpu/opengl/gl_vertex_array.cc
index 282ede5ba9b..88b69eb5b62 100644
--- a/source/blender/gpu/opengl/gl_vertex_array.cc
+++ b/source/blender/gpu/opengl/gl_vertex_array.cc
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2016 by Mike Erwin.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2016 by Mike Erwin. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_vertex_array.hh b/source/blender/gpu/opengl/gl_vertex_array.hh
index b8edbf3a691..d1d6c5604b5 100644
--- a/source/blender/gpu/opengl/gl_vertex_array.hh
+++ b/source/blender/gpu/opengl/gl_vertex_array.hh
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2020 Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_vertex_buffer.cc b/source/blender/gpu/opengl/gl_vertex_buffer.cc
index 469ac2cf8d6..a7a0c92431f 100644
--- a/source/blender/gpu/opengl/gl_vertex_buffer.cc
+++ b/source/blender/gpu/opengl/gl_vertex_buffer.cc
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2016 by Mike Erwin.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2016 by Mike Erwin. All rights reserved. */
 
 /** \file
  * \ingroup gpu
diff --git a/source/blender/gpu/opengl/gl_vertex_buffer.hh b/source/blender/gpu/opengl/gl_vertex_buffer.hh
index d347b6d56ca..4c29c17dcf7 100644
--- a/source/blender/gpu/opengl/gl_vertex_buffer.hh
+++ b/source/blender/gpu/opengl/gl_vertex_buffer.hh
@@ -1,21 +1,5 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2020 Blender Foundation.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2020 Blender Foundation. All rights reserved. */
 
 /** \file
  * \ingroup gpu