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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2006 Blender Foundation. All rights reserved. */
/** \file
* \ingroup cmpnodes
*/
#include "UI_interface.h"
#include "UI_resources.h"
#include "GPU_material.h"
#include "COM_shader_node.hh"
#include "node_composite_util.hh"
/* **************** Premul and Key Alpha Convert ******************** */
namespace blender::nodes::node_composite_premulkey_cc {
static void cmp_node_premulkey_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_output<decl::Color>(N_("Image"));
}
static void node_composit_buts_premulkey(uiLayout *layout, bContext *UNUSED(C), PointerRNA *ptr)
{
uiItemR(layout, ptr, "mapping", UI_ITEM_R_SPLIT_EMPTY_NAME, "", ICON_NONE);
}
using namespace blender::realtime_compositor;
class AlphaConvertShaderNode : public ShaderNode {
public:
using ShaderNode::ShaderNode;
void compile(GPUMaterial *material) override
{
GPUNodeStack *inputs = get_inputs_array();
GPUNodeStack *outputs = get_outputs_array();
if (get_mode() == 0) {
GPU_stack_link(material, &bnode(), "color_alpha_premultiply", inputs, outputs);
return;
}
GPU_stack_link(material, &bnode(), "color_alpha_unpremultiply", inputs, outputs);
}
CMPNodeAlphaConvertMode get_mode()
{
return (CMPNodeAlphaConvertMode)bnode().custom1;
}
};
static ShaderNode *get_compositor_shader_node(DNode node)
{
return new AlphaConvertShaderNode(node);
}
} // namespace blender::nodes::node_composite_premulkey_cc
void register_node_type_cmp_premulkey()
{
namespace file_ns = blender::nodes::node_composite_premulkey_cc;
static bNodeType ntype;
cmp_node_type_base(&ntype, CMP_NODE_PREMULKEY, "Alpha Convert", NODE_CLASS_CONVERTER);
ntype.declare = file_ns::cmp_node_premulkey_declare;
ntype.draw_buttons = file_ns::node_composit_buts_premulkey;
ntype.get_compositor_shader_node = file_ns::get_compositor_shader_node;
nodeRegisterType(&ntype);
}
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