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.
69 lines
2.0 KiB
C++
69 lines
2.0 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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namespace blender::compositor {
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class DisplaceOperation : 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_color_program_;
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float width_x4_;
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float height_x4_;
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int input_vector_width_;
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int input_vector_height_;
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std::function<void(float x, float y, float *out)> vector_read_fn_;
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std::function<void(float x, float y, float *out)> scale_x_read_fn_;
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std::function<void(float x, float y, float *out)> scale_y_read_fn_;
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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 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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/**
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* The inner loop of this operation.
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*/
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void execute_pixel_sampled(float output[4], float x, float y, PixelSampler sampler) override;
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void pixel_transform(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 init_execution() 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 get_area_of_interest(int input_idx, const rcti &output_area, rcti &r_input_area) override;
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void update_memory_buffer_started(MemoryBuffer *output,
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const rcti &area,
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Span<MemoryBuffer *> inputs) 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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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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