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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2006 Blender Foundation. All rights reserved. */
/** \file
* \ingroup cmpnodes
*/
#include "BLI_assert.h"
#include "DNA_material_types.h"
#include "GPU_material.h"
#include "COM_shader_node.hh"
#include "node_composite_util.hh"
/* **************** MIX RGB ******************** */
namespace blender::nodes::node_composite_mixrgb_cc {
static void cmp_node_mixrgb_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(2);
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::Color>(N_("Image"), "Image_001")
.default_value({1.0f, 1.0f, 1.0f, 1.0f})
.compositor_domain_priority(1);
b.add_output<decl::Color>(N_("Image"));
}
using namespace blender::realtime_compositor;
class MixRGBShaderNode : public ShaderNode {
public:
using ShaderNode::ShaderNode;
void compile(GPUMaterial *material) override
{
GPUNodeStack *inputs = get_inputs_array();
GPUNodeStack *outputs = get_outputs_array();
if (get_use_alpha()) {
GPU_link(material,
"multiply_by_alpha",
get_input_link("Fac"),
get_input_link("Image_001"),
&get_input("Fac").link);
}
GPU_stack_link(material, &bnode(), get_shader_function_name(), inputs, outputs);
if (!get_should_clamp()) {
return;
}
const float min[4] = {0.0f, 0.0f, 0.0f, 0.0f};
const float max[4] = {1.0f, 1.0f, 1.0f, 1.0f};
GPU_link(material,
"clamp_color",
get_output("Image").link,
GPU_constant(min),
GPU_constant(max),
&get_output("Image").link);
}
int get_mode()
{
return bnode().custom1;
}
const char *get_shader_function_name()
{
switch (get_mode()) {
case MA_RAMP_BLEND:
return "mix_blend";
case MA_RAMP_ADD:
return "mix_add";
case MA_RAMP_MULT:
return "mix_mult";
case MA_RAMP_SUB:
return "mix_sub";
case MA_RAMP_SCREEN:
return "mix_screen";
case MA_RAMP_DIV:
return "mix_div";
case MA_RAMP_DIFF:
return "mix_diff";
case MA_RAMP_DARK:
return "mix_dark";
case MA_RAMP_LIGHT:
return "mix_light";
case MA_RAMP_OVERLAY:
return "mix_overlay";
case MA_RAMP_DODGE:
return "mix_dodge";
case MA_RAMP_BURN:
return "mix_burn";
case MA_RAMP_HUE:
return "mix_hue";
case MA_RAMP_SAT:
return "mix_sat";
case MA_RAMP_VAL:
return "mix_val";
case MA_RAMP_COLOR:
return "mix_color";
case MA_RAMP_SOFT:
return "mix_soft";
case MA_RAMP_LINEAR:
return "mix_linear";
}
BLI_assert_unreachable();
return nullptr;
}
bool get_use_alpha()
{
return bnode().custom2 & SHD_MIXRGB_USE_ALPHA;
}
bool get_should_clamp()
{
return bnode().custom2 & SHD_MIXRGB_CLAMP;
}
};
static ShaderNode *get_compositor_shader_node(DNode node)
{
return new MixRGBShaderNode(node);
}
} // namespace blender::nodes::node_composite_mixrgb_cc
void register_node_type_cmp_mix_rgb()
{
namespace file_ns = blender::nodes::node_composite_mixrgb_cc;
static bNodeType ntype;
cmp_node_type_base(&ntype, CMP_NODE_MIX_RGB, "Mix", NODE_CLASS_OP_COLOR);
ntype.flag |= NODE_PREVIEW;
ntype.declare = file_ns::cmp_node_mixrgb_declare;
ntype.labelfunc = node_blend_label;
ntype.get_compositor_shader_node = file_ns::get_compositor_shader_node;
nodeRegisterType(&ntype);
}
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