e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
99 lines
2.5 KiB
C++
99 lines
2.5 KiB
C++
/* SPDX-FileCopyrightText: 2011 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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#include "COM_MultiThreadedOperation.h"
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#include "DNA_node_types.h"
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struct RNG;
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namespace blender::compositor {
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class ScreenLensDistortionOperation : public MultiThreadedOperation {
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private:
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/**
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* Cached reference to the input_program
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*/
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SocketReader *input_program_;
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struct RNG *rng_;
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bool fit_;
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bool jitter_;
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float dispersion_;
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float distortion_;
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bool dispersion_const_;
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bool distortion_const_;
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bool variables_ready_;
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float k_[3];
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float k4_[3];
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float dk4_[3];
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float maxk_;
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float sc_, cx_, cy_;
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public:
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ScreenLensDistortionOperation();
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void init_data() override;
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/**
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* The inner loop of this operation.
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*/
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void execute_pixel(float output[4], int x, int y, void *data) override;
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/**
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* Initialize the execution
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*/
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void init_execution() override;
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void *initialize_tile_data(rcti *rect) override;
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/**
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* Deinitialize the execution
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*/
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void deinit_execution() override;
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void set_fit(bool fit)
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{
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fit_ = fit;
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}
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void set_jitter(bool jitter)
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{
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jitter_ = jitter;
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}
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/** Set constant distortion value */
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void set_distortion(float distortion);
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/** Set constant dispersion value */
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void set_dispersion(float dispersion);
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bool determine_depending_area_of_interest(rcti *input,
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ReadBufferOperation *read_operation,
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rcti *output) override;
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void determine_canvas(const rcti &preferred_area, rcti &r_area) override;
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void get_area_of_interest(int input_idx, const rcti &output_area, rcti &r_input_area) override;
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void update_memory_buffer_partial(MemoryBuffer *output,
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const rcti &area,
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Span<MemoryBuffer *> inputs) override;
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private:
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void determineUV(float result[6], float x, float y) const;
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void update_variables(float distortion, float dispersion);
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void get_uv(const float xy[2], float uv[2]) const;
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void distort_uv(const float uv[2], float t, float xy[2]) const;
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bool get_delta(float r_sq, float k4, const float uv[2], float delta[2]) const;
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void accumulate(const MemoryBuffer *buffer,
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int a,
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int b,
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float r_sq,
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const float uv[2],
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const float delta[3][2],
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float sum[4],
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int count[3]) const;
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};
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} // namespace blender::compositor
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