Revert moving all shader nodes to c++

This reverts to following commits:
* rB5cad004d716da02f511bd34983ac7da820308676
* rB97e3a2d935ba9b21b127eda7ca104d4bcf4e48bd
* rBf60b95b5320f8d6abe6a629fe8fc4f1b94d0d91c
* rB0bd3cad04edf4bf9b9d3b1353f955534aa5e6740
* rBf72cc47d8edf849af98e196f721022bacf86a5e7
* rB3f7014ecc9d523997062eadd62888af5fc70a2b6
* rB0578921063fbb081239439062215f2538a31af4b
* rBc20098e6ec6adee874a12e510aa4a56d89f92838
* rBd5efda72f501ad95679d7ac554086a1fb18c1ac0

The original move to c++ that the other commits depended upon had some issues
that should be fixed before committing it again. The issues were reported in
T93797, T93809 and T93798.

We should also find a better rule for not using c-style casts going forward,
although that wouldn't have been reason enough to revert the commits.
Introducing something like a `MEM_new<T>` and `MEM_delete<T>`
function might help with the the most common case of casting the return
type of `MEM_malloc`.

Going forward, I recommend first committing the changes that don't
require converting files to c++. Then convert the shading node files
in smaller chunks. Especially don't mix fairly low risk changes like
moving some simple nodes, with higher risk changes.

1 files changed, 8 insertions, 10 deletions

diff --git a/source/blender/nodes/shader/nodes/node_shader_math.cc b/source/blender/nodes/shader/nodes/node_shader_math.cc
index 5fca37aecb4..1e94148c5c7 100644
--- a/source/blender/nodes/shader/nodes/node_shader_math.cc
+++ b/source/blender/nodes/shader/nodes/node_shader_math.cc
@@ -21,13 +21,13 @@
  * \ingroup shdnodes
  */
 
-#include "node_shader_util.hh"
+#include "node_shader_util.h"
 
 #include "NOD_math_functions.hh"
 
 /* **************** SCALAR MATH ******************** */
 
-namespace blender::nodes::node_shader_math_cc {
+namespace blender::nodes {
 
 static void sh_node_math_declare(NodeDeclarationBuilder &b)
 {
@@ -44,6 +44,8 @@ static void sh_node_math_declare(NodeDeclarationBuilder &b)
   b.add_output<decl::Float>(N_("Value"));
 };
 
+}  // namespace blender::nodes
+
 static const char *gpu_shader_get_name(int mode)
 {
   const blender::nodes::FloatMathOperationInfo *info =
@@ -159,20 +161,16 @@ static void sh_node_math_build_multi_function(blender::nodes::NodeMultiFunctionB
   }
 }
 
-}  // namespace blender::nodes::node_shader_math_cc
-
-void register_node_type_sh_math()
+void register_node_type_sh_math(void)
 {
-  namespace file_ns = blender::nodes::node_shader_math_cc;
-
   static bNodeType ntype;
 
   sh_fn_node_type_base(&ntype, SH_NODE_MATH, "Math", NODE_CLASS_CONVERTER, 0);
-  ntype.declare = file_ns::sh_node_math_declare;
+  ntype.declare = blender::nodes::sh_node_math_declare;
   node_type_label(&ntype, node_math_label);
-  node_type_gpu(&ntype, file_ns::gpu_shader_math);
+  node_type_gpu(&ntype, gpu_shader_math);
   node_type_update(&ntype, node_math_update);
-  ntype.build_multi_function = file_ns::sh_node_math_build_multi_function;
+  ntype.build_multi_function = sh_node_math_build_multi_function;
 
   nodeRegisterType(&ntype);
 }