/* SPDX-License-Identifier: GPL-2.0-or-later
 * Copyright 2006 Blender Foundation. All rights reserved. */

/** \file
 * \ingroup cmpnodes
 */

#include "GPU_material.h"

#include "COM_shader_node.hh"

#include "node_composite_util.hh"

/* **************** Gamma Tools  ******************** */

namespace blender::nodes::node_composite_gamma_cc {

static void cmp_node_gamma_declare(NodeDeclarationBuilder &b)
{
  b.add_input<decl::Color>(N_("Image"))
      .default_value({1.0f, 1.0f, 1.0f, 1.0f})
      .compositor_domain_priority(0);
  b.add_input<decl::Float>(N_("Gamma"))
      .default_value(1.0f)
      .min(0.001f)
      .max(10.0f)
      .subtype(PROP_UNSIGNED)
      .compositor_domain_priority(1);
  b.add_output<decl::Color>(N_("Image"));
}

using namespace blender::realtime_compositor;

class GammaShaderNode : public ShaderNode {
 public:
  using ShaderNode::ShaderNode;

  void compile(GPUMaterial *material) override
  {
    GPUNodeStack *inputs = get_inputs_array();
    GPUNodeStack *outputs = get_outputs_array();

    GPU_stack_link(material, &bnode(), "node_composite_gamma", inputs, outputs);
  }
};

static ShaderNode *get_compositor_shader_node(DNode node)
{
  return new GammaShaderNode(node);
}

}  // namespace blender::nodes::node_composite_gamma_cc

void register_node_type_cmp_gamma()
{
  namespace file_ns = blender::nodes::node_composite_gamma_cc;

  static bNodeType ntype;

  cmp_node_type_base(&ntype, CMP_NODE_GAMMA, "Gamma", NODE_CLASS_OP_COLOR);
  ntype.declare = file_ns::cmp_node_gamma_declare;
  ntype.get_compositor_shader_node = file_ns::get_compositor_shader_node;

  nodeRegisterType(&ntype);
}
