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/* SPDX-License-Identifier: BSD-3-Clause
*
* Adapted from Open Shading Language
* Copyright (c) 2009-2010 Sony Pictures Imageworks Inc., et al.
* All Rights Reserved.
*
* Modifications Copyright 2011-2022 Blender Foundation. */
#include <OpenImageIO/fmath.h>
#include <OSL/genclosure.h>
#include "kernel/device/cpu/compat.h"
#include "kernel/osl/closures.h"
// clang-format off
#include "kernel/types.h"
#include "kernel/closure/alloc.h"
#include "kernel/closure/bsdf_phong_ramp.h"
#include "kernel/closure/bsdf_util.h"
// clang-format on
CCL_NAMESPACE_BEGIN
using namespace OSL;
class PhongRampClosure : public CBSDFClosure {
public:
PhongRampBsdf params;
Color3 colors[8];
void setup(ShaderData *sd, uint32_t /* path_flag */, float3 weight)
{
params.N = ensure_valid_reflection(sd->Ng, sd->I, params.N);
PhongRampBsdf *bsdf = (PhongRampBsdf *)bsdf_alloc_osl(
sd, sizeof(PhongRampBsdf), weight, ¶ms);
if (bsdf) {
bsdf->colors = (float3 *)closure_alloc_extra(sd, sizeof(float3) * 8);
if (bsdf->colors) {
for (int i = 0; i < 8; i++)
bsdf->colors[i] = TO_FLOAT3(colors[i]);
sd->flag |= bsdf_phong_ramp_setup(bsdf);
}
}
}
};
ClosureParam *closure_bsdf_phong_ramp_params()
{
static ClosureParam params[] = {CLOSURE_FLOAT3_PARAM(PhongRampClosure, params.N),
CLOSURE_FLOAT_PARAM(PhongRampClosure, params.exponent),
CLOSURE_COLOR_ARRAY_PARAM(PhongRampClosure, colors, 8),
CLOSURE_STRING_KEYPARAM(PhongRampClosure, label, "label"),
CLOSURE_FINISH_PARAM(PhongRampClosure)};
return params;
}
CCLOSURE_PREPARE(closure_bsdf_phong_ramp_prepare, PhongRampClosure)
CCL_NAMESPACE_END
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