node_composite_translate.cc

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/* SPDX-FileCopyrightText: 2006 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */

 
#include "BLI_assert.h"
#include "BLI_math_matrix.hh"
 
#include "UI_interface.hh"
#include "UI_resources.hh"
 
#include "COM_node_operation.hh"
#include "COM_utilities.hh"
 
#include "node_composite_util.hh"
 
/* **************** Translate ******************** */
 
namespace blender::nodes::node_composite_translate_cc {
 
NODE_STORAGE_FUNCS(NodeTranslateData)
 
static void cmp_node_translate_declare(NodeDeclarationBuilder &b)
{
  b.add_input<decl::Color>("Image")
      .default_value({1.0f, 1.0f, 1.0f, 1.0f})
      .compositor_domain_priority(0)
      .compositor_realization_mode(CompositorInputRealizationMode::None);
  b.add_input<decl::Float>("X")
      .default_value(0.0f)
      .min(-10000.0f)
      .max(10000.0f)
      .compositor_expects_single_value();
  b.add_input<decl::Float>("Y")
      .default_value(0.0f)
      .min(-10000.0f)
      .max(10000.0f)
      .compositor_expects_single_value();
  b.add_output<decl::Color>("Image");
}
 
static void node_composit_init_translate(bNodeTree * /*ntree*/, bNode *node)
{
  NodeTranslateData *data = MEM_callocN<NodeTranslateData>(__func__);
  node->storage = data;
}
 
static void node_composit_buts_translate(uiLayout *layout, bContext * /*C*/, PointerRNA *ptr)
{
  layout->prop(ptr, "interpolation", UI_ITEM_R_SPLIT_EMPTY_NAME, std::nullopt, ICON_NONE);
  layout->prop(ptr, "wrap_axis", UI_ITEM_R_SPLIT_EMPTY_NAME, std::nullopt, ICON_NONE);
}
 
using namespace blender::compositor;
 
class TranslateOperation : public NodeOperation {
 public:
  using NodeOperation::NodeOperation;
 
  void execute() override
  {
    const Result &input = this->get_input("Image");
 
    float x = this->get_input("X").get_single_value_default(0.0f);
    float y = this->get_input("Y").get_single_value_default(0.0f);
    const float2 translation = float2(x, y);
 
    Result &output = this->get_result("Image");
    output.share_data(input);
    output.transform(math::from_location<float3x3>(translation));
    output.get_realization_options().interpolation = this->get_interpolation();
    output.get_realization_options().repeat_x = this->get_repeat_x();
    output.get_realization_options().repeat_y = this->get_repeat_y();
  }
 
  Interpolation get_interpolation()
  {
    switch (node_storage(bnode()).interpolation) {
      case CMP_NODE_INTERPOLATION_NEAREST:
        return Interpolation::Nearest;
      case CMP_NODE_INTERPOLATION_BILINEAR:
        return Interpolation::Bilinear;
      case CMP_NODE_INTERPOLATION_BICUBIC:
        return Interpolation::Bicubic;
    }
 
    BLI_assert_unreachable();
    return Interpolation::Nearest;
  }
 
  bool get_repeat_x()
  {
    return ELEM(node_storage(bnode()).wrap_axis,
                CMP_NODE_TRANSLATE_REPEAT_AXIS_X,
                CMP_NODE_TRANSLATE_REPEAT_AXIS_XY);
  }
 
  bool get_repeat_y()
  {
    return ELEM(node_storage(bnode()).wrap_axis,
                CMP_NODE_TRANSLATE_REPEAT_AXIS_Y,
                CMP_NODE_TRANSLATE_REPEAT_AXIS_XY);
  }
};
 
static NodeOperation *get_compositor_operation(Context &context, DNode node)
{
  return new TranslateOperation(context, node);
}
 
}  // namespace blender::nodes::node_composite_translate_cc
 
static void register_node_type_cmp_translate()
{
  namespace file_ns = blender::nodes::node_composite_translate_cc;
 
  static blender::bke::bNodeType ntype;
 
  cmp_node_type_base(&ntype, "CompositorNodeTranslate", CMP_NODE_TRANSLATE);
  ntype.ui_name = "Translate";
  ntype.ui_description = "Offset an image";
  ntype.enum_name_legacy = "TRANSLATE";
  ntype.nclass = NODE_CLASS_DISTORT;
  ntype.declare = file_ns::cmp_node_translate_declare;
  ntype.draw_buttons = file_ns::node_composit_buts_translate;
  ntype.initfunc = file_ns::node_composit_init_translate;
  blender::bke::node_type_storage(
      ntype, "NodeTranslateData", node_free_standard_storage, node_copy_standard_storage);
  ntype.get_compositor_operation = file_ns::get_compositor_operation;
 
  blender::bke::node_register_type(ntype);
}
NOD_REGISTER_NODE(register_node_type_cmp_translate)