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/* 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 "NOD_math_functions.hh"
#include "node_composite_util.hh"
/* **************** SCALAR MATH ******************** */
namespace blender::nodes::node_composite_math_cc {
static void cmp_node_math_declare(NodeDeclarationBuilder &b)
{
b.add_input<decl::Float>(N_("Value"))
.default_value(0.5f)
.min(-10000.0f)
.max(10000.0f)
.compositor_domain_priority(0);
b.add_input<decl::Float>(N_("Value"), "Value_001")
.default_value(0.5f)
.min(-10000.0f)
.max(10000.0f)
.compositor_domain_priority(1);
b.add_input<decl::Float>(N_("Value"), "Value_002")
.default_value(0.5f)
.min(-10000.0f)
.max(10000.0f)
.compositor_domain_priority(2);
b.add_output<decl::Float>(N_("Value"));
}
using namespace blender::realtime_compositor;
class MathShaderNode : 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(), get_shader_function_name(), inputs, outputs);
if (!get_should_clamp()) {
return;
}
const float min = 0.0f;
const float max = 1.0f;
GPU_link(material,
"clamp_value",
get_output("Value").link,
GPU_constant(&min),
GPU_constant(&max),
&get_output("Value").link);
}
NodeMathOperation get_operation()
{
return (NodeMathOperation)bnode().custom1;
}
const char *get_shader_function_name()
{
return get_float_math_operation_info(get_operation())->shader_name.c_str();
}
bool get_should_clamp()
{
return bnode().custom2 & SHD_MATH_CLAMP;
}
};
static ShaderNode *get_compositor_shader_node(DNode node)
{
return new MathShaderNode(node);
}
} // namespace blender::nodes::node_composite_math_cc
void register_node_type_cmp_math()
{
namespace file_ns = blender::nodes::node_composite_math_cc;
static bNodeType ntype;
cmp_node_type_base(&ntype, CMP_NODE_MATH, "Math", NODE_CLASS_CONVERTER);
ntype.declare = file_ns::cmp_node_math_declare;
ntype.labelfunc = node_math_label;
node_type_update(&ntype, node_math_update);
ntype.get_compositor_shader_node = file_ns::get_compositor_shader_node;
nodeRegisterType(&ntype);
}
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