forked from bartvdbraak/blender
b9ce231060
More information in this post: http://code.blender.org/ Thanks to all contributes for giving their permission!
102 lines
1.9 KiB
C++
102 lines
1.9 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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#include "subd_stencil.h"
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#include "util_debug.h"
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#include "util_math.h"
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CCL_NAMESPACE_BEGIN
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StencilMask::StencilMask()
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{
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}
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StencilMask::StencilMask(int size)
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{
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/* initialize weights to zero. */
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weights.resize(size, 0.0f);
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}
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void StencilMask::resize(int size)
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{
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weights.resize(size, 0.0f);
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}
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StencilMask& StencilMask::operator=(float value)
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{
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const int size = weights.size();
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for(int i = 0; i < size; i++)
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weights[i] = value;
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return *this;
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}
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void StencilMask::operator+=(const StencilMask& mask)
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{
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assert(mask.size() == size());
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const int size = weights.size();
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for(int i = 0; i < size; i++)
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weights[i] += mask.weights[i];
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}
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void StencilMask::operator-=(const StencilMask& mask)
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{
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assert(mask.size() == size());
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const int size = weights.size();
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for(int i = 0; i < size; i++)
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weights[i] -= mask.weights[i];
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}
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void StencilMask::operator*=(float scale)
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{
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const int size = weights.size();
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for(int i = 0; i < size; i++)
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weights[i] *= scale;
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}
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void StencilMask::operator/=(float scale)
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{
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*this *= 1.0f/scale;
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}
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float StencilMask::sum() const
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{
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float total = 0.0f;
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const int size = weights.size();
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for(int i = 0; i < size; i++)
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total += weights[i];
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return total;
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}
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bool StencilMask::is_normalized() const
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{
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return fabsf(sum() - 1.0f) < 0.0001f;
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}
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void StencilMask::normalize()
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{
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*this /= sum();
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}
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CCL_NAMESPACE_END
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