71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright 2011, Blender Foundation.
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*/
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#pragma once
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#include "COM_NodeOperation.h"
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namespace blender::compositor {
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class DisplaceOperation : public NodeOperation {
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private:
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/**
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* Cached reference to the inputProgram
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*/
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SocketReader *m_inputColorProgram;
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SocketReader *m_inputVectorProgram;
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SocketReader *m_inputScaleXProgram;
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SocketReader *m_inputScaleYProgram;
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float m_width_x4;
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float m_height_x4;
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public:
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DisplaceOperation();
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/**
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* we need a 2x2 differential filter for Vector Input and full buffer for the image
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*/
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bool determineDependingAreaOfInterest(rcti *input,
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ReadBufferOperation *readOperation,
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rcti *output) override;
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/**
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* The inner loop of this operation.
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*/
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void executePixelSampled(float output[4], float x, float y, PixelSampler sampler) override;
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void pixelTransform(const float xy[2], float r_uv[2], float r_deriv[2][2]);
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/**
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* Initialize the execution
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*/
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void initExecution() override;
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/**
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* Deinitialize the execution
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*/
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void deinitExecution() override;
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private:
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bool read_displacement(
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float x, float y, float xscale, float yscale, const float origin[2], float &r_u, float &r_v);
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};
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} // namespace blender::compositor
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