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/* SPDX-License-Identifier: Apache-2.0
* Copyright 2011-2022 Blender Foundation */
#pragma once
CCL_NAMESPACE_BEGIN
/* Clamp Node */
ccl_device_noinline int svm_node_clamp(KernelGlobals kg,
ccl_private ShaderData *sd,
ccl_private float *stack,
uint value_stack_offset,
uint parameters_stack_offsets,
uint result_stack_offset,
int offset)
{
uint min_stack_offset, max_stack_offset, type;
svm_unpack_node_uchar3(parameters_stack_offsets, &min_stack_offset, &max_stack_offset, &type);
uint4 defaults = read_node(kg, &offset);
float value = stack_load_float(stack, value_stack_offset);
float min = stack_load_float_default(stack, min_stack_offset, defaults.x);
float max = stack_load_float_default(stack, max_stack_offset, defaults.y);
if (type == NODE_CLAMP_RANGE && (min > max)) {
stack_store_float(stack, result_stack_offset, clamp(value, max, min));
}
else {
stack_store_float(stack, result_stack_offset, clamp(value, min, max));
}
return offset;
}
CCL_NAMESPACE_END
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