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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2006 Blender Foundation. All rights reserved. */
/** \file
* \ingroup cmpnodes
*/
#include "BKE_colortools.h"
#include "GPU_material.h"
#include "COM_shader_node.hh"
#include "node_composite_util.hh"
#include "BKE_colortools.h"
namespace blender::nodes::node_composite_huecorrect_cc {
static void cmp_node_huecorrect_declare(NodeDeclarationBuilder &b)
{
b.add_input<decl::Float>(N_("Fac"))
.default_value(1.0f)
.min(0.0f)
.max(1.0f)
.subtype(PROP_FACTOR)
.compositor_domain_priority(1);
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_init_huecorrect(bNodeTree * /*ntree*/, bNode *node)
{
node->storage = BKE_curvemapping_add(1, 0.0f, 0.0f, 1.0f, 1.0f);
CurveMapping *cumapping = (CurveMapping *)node->storage;
cumapping->preset = CURVE_PRESET_MID9;
for (int c = 0; c < 3; c++) {
CurveMap *cuma = &cumapping->cm[c];
BKE_curvemap_reset(cuma, &cumapping->clipr, cumapping->preset, CURVEMAP_SLOPE_POSITIVE);
}
/* default to showing Saturation */
cumapping->cur = 1;
}
using namespace blender::realtime_compositor;
class HueCorrectShaderNode : public ShaderNode {
public:
using ShaderNode::ShaderNode;
void compile(GPUMaterial *material) override
{
GPUNodeStack *inputs = get_inputs_array();
GPUNodeStack *outputs = get_outputs_array();
CurveMapping *curve_mapping = const_cast<CurveMapping *>(get_curve_mapping());
BKE_curvemapping_init(curve_mapping);
float *band_values;
int band_size;
BKE_curvemapping_table_RGBA(curve_mapping, &band_values, &band_size);
float band_layer;
GPUNodeLink *band_texture = GPU_color_band(material, band_size, band_values, &band_layer);
float range_minimums[CM_TOT];
BKE_curvemapping_get_range_minimums(curve_mapping, range_minimums);
float range_dividers[CM_TOT];
BKE_curvemapping_compute_range_dividers(curve_mapping, range_dividers);
GPU_stack_link(material,
&bnode(),
"node_composite_hue_correct",
inputs,
outputs,
band_texture,
GPU_constant(&band_layer),
GPU_uniform(range_minimums),
GPU_uniform(range_dividers));
}
const CurveMapping *get_curve_mapping()
{
return static_cast<const CurveMapping *>(bnode().storage);
}
};
static ShaderNode *get_compositor_shader_node(DNode node)
{
return new HueCorrectShaderNode(node);
}
} // namespace blender::nodes::node_composite_huecorrect_cc
void register_node_type_cmp_huecorrect()
{
namespace file_ns = blender::nodes::node_composite_huecorrect_cc;
static bNodeType ntype;
cmp_node_type_base(&ntype, CMP_NODE_HUECORRECT, "Hue Correct", NODE_CLASS_OP_COLOR);
ntype.declare = file_ns::cmp_node_huecorrect_declare;
node_type_size(&ntype, 320, 140, 500);
node_type_init(&ntype, file_ns::node_composit_init_huecorrect);
node_type_storage(&ntype, "CurveMapping", node_free_curves, node_copy_curves);
ntype.get_compositor_shader_node = file_ns::get_compositor_shader_node;
nodeRegisterType(&ntype);
}
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