Nodes: Convert several shader nodes to c++

Also add file namespace

This is needed to use new node APIs

Differential Revision: https://developer.blender.org/D13690

1 files changed, 159 insertions, 0 deletions

diff --git a/source/blender/nodes/shader/nodes/node_shader_vector_transform.cc b/source/blender/nodes/shader/nodes/node_shader_vector_transform.cc
new file mode 100644
index 00000000000..fc6a05d93b6
--- /dev/null
+++ b/source/blender/nodes/shader/nodes/node_shader_vector_transform.cc
@@ -0,0 +1,159 @@
+/*
+ * 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) 2013 Blender Foundation.
+ * All rights reserved.
+ */
+
+/** \file
+ * \ingroup shdnodes
+ */
+
+#include "../node_shader_util.h"
+
+namespace blender::nodes::node_shader_vector_transform_cc {
+
+/* **************** Vector Transform ******************** */
+static bNodeSocketTemplate sh_node_vect_transform_in[] = {
+    {SOCK_VECTOR, N_("Vector"), 0.5f, 0.5f, 0.5f, 1.0f, -10000.0f, 10000.0f, PROP_NONE}, {-1, ""}};
+
+static bNodeSocketTemplate sh_node_vect_transform_out[] = {
+    {SOCK_VECTOR, N_("Vector")},
+    {-1, ""},
+};
+
+static void node_shader_init_vect_transform(bNodeTree *UNUSED(ntree), bNode *node)
+{
+  NodeShaderVectTransform *vect = MEM_cnew<NodeShaderVectTransform>("NodeShaderVectTransform");
+
+  /* Convert World into Object Space per default */
+  vect->convert_to = 1;
+
+  node->storage = vect;
+}
+
+static void node_shader_exec_vect_transform(void *UNUSED(data),
+                                            int UNUSED(thread),
+                                            bNode *UNUSED(node),
+                                            bNodeExecData *UNUSED(execdata),
+                                            bNodeStack **UNUSED(in),
+                                            bNodeStack **UNUSED(out))
+{
+}
+
+static GPUNodeLink *get_gpulink_matrix_from_to(short from, short to)
+{
+  switch (from) {
+    case SHD_VECT_TRANSFORM_SPACE_OBJECT:
+      switch (to) {
+        case SHD_VECT_TRANSFORM_SPACE_OBJECT:
+          return nullptr;
+        case SHD_VECT_TRANSFORM_SPACE_WORLD:
+          return GPU_builtin(GPU_OBJECT_MATRIX);
+        case SHD_VECT_TRANSFORM_SPACE_CAMERA:
+          return GPU_builtin(GPU_LOC_TO_VIEW_MATRIX);
+      }
+      break;
+    case SHD_VECT_TRANSFORM_SPACE_WORLD:
+      switch (to) {
+        case SHD_VECT_TRANSFORM_SPACE_WORLD:
+          return nullptr;
+        case SHD_VECT_TRANSFORM_SPACE_CAMERA:
+          return GPU_builtin(GPU_VIEW_MATRIX);
+        case SHD_VECT_TRANSFORM_SPACE_OBJECT:
+          return GPU_builtin(GPU_INVERSE_OBJECT_MATRIX);
+      }
+      break;
+    case SHD_VECT_TRANSFORM_SPACE_CAMERA:
+      switch (to) {
+        case SHD_VECT_TRANSFORM_SPACE_CAMERA:
+          return nullptr;
+        case SHD_VECT_TRANSFORM_SPACE_WORLD:
+          return GPU_builtin(GPU_INVERSE_VIEW_MATRIX);
+        case SHD_VECT_TRANSFORM_SPACE_OBJECT:
+          return GPU_builtin(GPU_INVERSE_LOC_TO_VIEW_MATRIX);
+      }
+      break;
+  }
+  return nullptr;
+}
+static int gpu_shader_vect_transform(GPUMaterial *mat,
+                                     bNode *node,
+                                     bNodeExecData *UNUSED(execdata),
+                                     GPUNodeStack *in,
+                                     GPUNodeStack *out)
+{
+  struct GPUNodeLink *inputlink;
+  struct GPUNodeLink *fromto;
+
+  const char *vtransform = "direction_transform_m4v3";
+  const char *ptransform = "point_transform_m4v3";
+  const char *func_name = 0;
+
+  NodeShaderVectTransform *nodeprop = (NodeShaderVectTransform *)node->storage;
+
+  if (in[0].hasinput) {
+    inputlink = in[0].link;
+  }
+  else {
+    inputlink = GPU_constant(in[0].vec);
+  }
+
+  fromto = get_gpulink_matrix_from_to(nodeprop->convert_from, nodeprop->convert_to);
+
+  func_name = (nodeprop->type == SHD_VECT_TRANSFORM_TYPE_POINT) ? ptransform : vtransform;
+  if (fromto) {
+    /* For cycles we have inverted Z */
+    /* TODO: pass here the correct matrices */
+    if (nodeprop->convert_from == SHD_VECT_TRANSFORM_SPACE_CAMERA &&
+        nodeprop->convert_to != SHD_VECT_TRANSFORM_SPACE_CAMERA) {
+      GPU_link(mat, "invert_z", inputlink, &inputlink);
+    }
+    GPU_link(mat, func_name, inputlink, fromto, &out[0].link);
+    if (nodeprop->convert_to == SHD_VECT_TRANSFORM_SPACE_CAMERA &&
+        nodeprop->convert_from != SHD_VECT_TRANSFORM_SPACE_CAMERA) {
+      GPU_link(mat, "invert_z", out[0].link, &out[0].link);
+    }
+  }
+  else {
+    GPU_link(mat, "set_rgb", inputlink, &out[0].link);
+  }
+
+  if (nodeprop->type == SHD_VECT_TRANSFORM_TYPE_NORMAL) {
+    GPU_link(mat, "vector_normalize", out[0].link, &out[0].link);
+  }
+
+  return true;
+}
+
+}  // namespace blender::nodes::node_shader_vector_transform_cc
+
+void register_node_type_sh_vect_transform()
+{
+  namespace file_ns = blender::nodes::node_shader_vector_transform_cc;
+
+  static bNodeType ntype;
+
+  sh_node_type_base(&ntype, SH_NODE_VECT_TRANSFORM, "Vector Transform", NODE_CLASS_OP_VECTOR, 0);
+  node_type_init(&ntype, file_ns::node_shader_init_vect_transform);
+  node_type_socket_templates(
+      &ntype, file_ns::sh_node_vect_transform_in, file_ns::sh_node_vect_transform_out);
+  node_type_storage(
+      &ntype, "NodeShaderVectTransform", node_free_standard_storage, node_copy_standard_storage);
+  node_type_exec(&ntype, nullptr, nullptr, file_ns::node_shader_exec_vect_transform);
+  node_type_gpu(&ntype, file_ns::gpu_shader_vect_transform);
+
+  nodeRegisterType(&ntype);
+}