6f2afc7390
The node uses multiple transform operations, each using its own sampling. Using bicubic sampling in the translate node causes undesired offsets. These changes were intentional (see test updates in `c4e1be73`), but the offsets were thought to be too small for users to notice. Pull Request: https://projects.blender.org/blender/blender/pulls/121495
110 lines
4.5 KiB
C++
110 lines
4.5 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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#include "COM_Stabilize2dNode.h"
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#include "COM_MovieClipAttributeOperation.h"
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#include "COM_RotateOperation.h"
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#include "COM_ScaleOperation.h"
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#include "COM_SetSamplerOperation.h"
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#include "COM_TranslateOperation.h"
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namespace blender::compositor {
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Stabilize2dNode::Stabilize2dNode(bNode *editor_node) : Node(editor_node)
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{
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/* pass */
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}
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void Stabilize2dNode::convert_to_operations(NodeConverter &converter,
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const CompositorContext &context) const
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{
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const bNode *editor_node = this->get_bnode();
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NodeInput *image_input = this->get_input_socket(0);
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MovieClip *clip = (MovieClip *)editor_node->id;
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bool invert = (editor_node->custom2 & CMP_NODE_STABILIZE_FLAG_INVERSE) != 0;
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const PixelSampler sampler = (PixelSampler)editor_node->custom1;
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MovieClipAttributeOperation *scale_attribute = new MovieClipAttributeOperation();
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MovieClipAttributeOperation *angle_attribute = new MovieClipAttributeOperation();
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MovieClipAttributeOperation *x_attribute = new MovieClipAttributeOperation();
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MovieClipAttributeOperation *y_attribute = new MovieClipAttributeOperation();
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scale_attribute->set_attribute(MCA_SCALE);
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scale_attribute->set_framenumber(context.get_framenumber());
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scale_attribute->set_movie_clip(clip);
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scale_attribute->set_invert(invert);
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angle_attribute->set_attribute(MCA_ANGLE);
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angle_attribute->set_framenumber(context.get_framenumber());
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angle_attribute->set_movie_clip(clip);
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angle_attribute->set_invert(invert);
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x_attribute->set_attribute(MCA_X);
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x_attribute->set_framenumber(context.get_framenumber());
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x_attribute->set_movie_clip(clip);
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x_attribute->set_invert(invert);
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y_attribute->set_attribute(MCA_Y);
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y_attribute->set_framenumber(context.get_framenumber());
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y_attribute->set_movie_clip(clip);
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y_attribute->set_invert(invert);
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converter.add_operation(scale_attribute);
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converter.add_operation(angle_attribute);
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converter.add_operation(x_attribute);
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converter.add_operation(y_attribute);
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ScaleRelativeOperation *scale_operation = new ScaleRelativeOperation();
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scale_operation->set_sampler(sampler);
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RotateOperation *rotate_operation = new RotateOperation();
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rotate_operation->set_do_degree2_rad_conversion(false);
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rotate_operation->set_sampler(sampler);
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TranslateOperation *translate_operation = new TranslateCanvasOperation();
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converter.add_operation(scale_operation);
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converter.add_operation(translate_operation);
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converter.add_operation(rotate_operation);
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converter.add_link(scale_attribute->get_output_socket(), scale_operation->get_input_socket(1));
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converter.add_link(scale_attribute->get_output_socket(), scale_operation->get_input_socket(2));
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converter.add_link(angle_attribute->get_output_socket(), rotate_operation->get_input_socket(1));
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converter.add_link(x_attribute->get_output_socket(), translate_operation->get_input_socket(1));
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converter.add_link(y_attribute->get_output_socket(), translate_operation->get_input_socket(2));
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NodeOperationInput *stabilization_socket = nullptr;
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if (invert) {
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/* Translate -> Rotate -> Scale. */
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stabilization_socket = translate_operation->get_input_socket(0);
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converter.map_input_socket(image_input, translate_operation->get_input_socket(0));
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converter.add_link(translate_operation->get_output_socket(),
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rotate_operation->get_input_socket(0));
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converter.add_link(rotate_operation->get_output_socket(),
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scale_operation->get_input_socket(0));
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converter.map_output_socket(get_output_socket(), scale_operation->get_output_socket());
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}
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else {
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/* Scale -> Rotate -> Translate. */
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stabilization_socket = scale_operation->get_input_socket(0);
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converter.map_input_socket(image_input, scale_operation->get_input_socket(0));
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converter.add_link(scale_operation->get_output_socket(),
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rotate_operation->get_input_socket(0));
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converter.add_link(rotate_operation->get_output_socket(),
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translate_operation->get_input_socket(0));
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converter.map_output_socket(get_output_socket(), translate_operation->get_output_socket());
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}
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x_attribute->set_socket_input_resolution_for_stabilization(stabilization_socket);
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y_attribute->set_socket_input_resolution_for_stabilization(stabilization_socket);
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scale_attribute->set_socket_input_resolution_for_stabilization(stabilization_socket);
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angle_attribute->set_socket_input_resolution_for_stabilization(stabilization_socket);
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}
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} // namespace blender::compositor
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