brightness.h

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/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
 *
 * SPDX-License-Identifier: Apache-2.0 */
 
#pragma once
 
#include "kernel/svm/color_util.h"
#include "kernel/svm/util.h"
 
CCL_NAMESPACE_BEGIN
 
ccl_device_noinline void svm_node_brightness(ccl_private float *stack,
                                             const uint in_color,
                                             const uint out_color,
                                             const uint node)
{
  uint bright_offset;
  uint contrast_offset;
  float3 color = stack_load_float3(stack, in_color);
 
  svm_unpack_node_uchar2(node, &bright_offset, &contrast_offset);
  const float brightness = stack_load_float(stack, bright_offset);
  const float contrast = stack_load_float(stack, contrast_offset);
 
  color = svm_brightness_contrast(color, brightness, contrast);
 
  if (stack_valid(out_color)) {
    stack_store_float3(stack, out_color, color);
  }
}
 
CCL_NAMESPACE_END