fd25e883e2
Remove prefix of filenames that is the same as the folder name. This used to help when #includes were using individual files, but now they are always relative to the cycles root directory and so the prefixes are redundant. For patches and branches, git merge and rebase should be able to detect the renames and move over code to the right file.
88 lines
2.1 KiB
C
88 lines
2.1 KiB
C
/*
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* Copyright 2011-2013 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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CCL_NAMESPACE_BEGIN
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/* NOTE: svm_ramp.h, svm_ramp_util.h and node_ramp_util.h must stay consistent */
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ccl_device_inline float3
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rgb_ramp_lookup(const float3 *ramp, float f, bool interpolate, bool extrapolate, int table_size)
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{
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if ((f < 0.0f || f > 1.0f) && extrapolate) {
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float3 t0, dy;
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if (f < 0.0f) {
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t0 = ramp[0];
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dy = t0 - ramp[1], f = -f;
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}
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else {
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t0 = ramp[table_size - 1];
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dy = t0 - ramp[table_size - 2];
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f = f - 1.0f;
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}
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return t0 + dy * f * (table_size - 1);
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}
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f = clamp(f, 0.0f, 1.0f) * (table_size - 1);
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/* clamp int as well in case of NaN */
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int i = clamp(float_to_int(f), 0, table_size - 1);
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float t = f - (float)i;
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float3 result = ramp[i];
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if (interpolate && t > 0.0f) {
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result = (1.0f - t) * result + t * ramp[i + 1];
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}
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return result;
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}
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ccl_device float float_ramp_lookup(
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const float *ramp, float f, bool interpolate, bool extrapolate, int table_size)
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{
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if ((f < 0.0f || f > 1.0f) && extrapolate) {
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float t0, dy;
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if (f < 0.0f) {
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t0 = ramp[0];
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dy = t0 - ramp[1], f = -f;
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}
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else {
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t0 = ramp[table_size - 1];
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dy = t0 - ramp[table_size - 2];
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f = f - 1.0f;
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}
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return t0 + dy * f * (table_size - 1);
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}
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f = clamp(f, 0.0f, 1.0f) * (table_size - 1);
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/* clamp int as well in case of NaN */
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int i = clamp(float_to_int(f), 0, table_size - 1);
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float t = f - (float)i;
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float result = ramp[i];
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if (interpolate && t > 0.0f) {
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result = (1.0f - t) * result + t * ramp[i + 1];
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}
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return result;
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}
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CCL_NAMESPACE_END
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