9cc038f580
Make size inference consistent with the viewport compositor (from a user's perspective). This patch uses constat folding to create a constant output out of constant inputs. This is consistent with the results of the realtime compositor. Nodes not included in this patch require further refactoring or discussion. They will be addressed in future patches. Pull Request: https://projects.blender.org/blender/blender/pulls/114755
220 lines
8.7 KiB
C++
220 lines
8.7 KiB
C++
/* SPDX-FileCopyrightText: 2021 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "COM_TransformOperation.h"
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#include "BLI_math_rotation.h"
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#include "COM_RotateOperation.h"
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#include "COM_ScaleOperation.h"
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namespace blender::compositor {
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TransformOperation::TransformOperation()
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{
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add_input_socket(DataType::Color, ResizeMode::None);
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add_input_socket(DataType::Value, ResizeMode::None);
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add_input_socket(DataType::Value, ResizeMode::None);
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add_input_socket(DataType::Value, ResizeMode::None);
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add_input_socket(DataType::Value, ResizeMode::None);
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add_output_socket(DataType::Color);
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translate_factor_x_ = 1.0f;
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translate_factor_y_ = 1.0f;
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convert_degree_to_rad_ = false;
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sampler_ = PixelSampler::Bilinear;
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invert_ = false;
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max_scale_canvas_size_ = {ScaleOperation::DEFAULT_MAX_SCALE_CANVAS_SIZE,
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ScaleOperation::DEFAULT_MAX_SCALE_CANVAS_SIZE};
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flags_.can_be_constant = true;
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}
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void TransformOperation::set_scale_canvas_max_size(Size2f size)
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{
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max_scale_canvas_size_ = size;
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}
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void TransformOperation::init_data()
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{
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translate_x_ = get_input_operation(X_INPUT_INDEX)->get_constant_value_default(0.0f) *
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translate_factor_x_;
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translate_y_ = get_input_operation(Y_INPUT_INDEX)->get_constant_value_default(0.0f) *
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translate_factor_y_;
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const float degree = get_input_operation(DEGREE_INPUT_INDEX)->get_constant_value_default(0.0f);
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const double rad = convert_degree_to_rad_ ? DEG2RAD(double(degree)) : degree;
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rotate_cosine_ = cos(rad);
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rotate_sine_ = sin(rad);
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scale_ = get_input_operation(SCALE_INPUT_INDEX)->get_constant_value_default(1.0f);
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}
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void TransformOperation::get_area_of_interest(const int input_idx,
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const rcti &output_area,
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rcti &r_input_area)
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{
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switch (input_idx) {
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case IMAGE_INPUT_INDEX: {
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NodeOperation *image_op = get_input_operation(IMAGE_INPUT_INDEX);
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const rcti &image_canvas = image_op->get_canvas();
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if (invert_) {
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/* Scale -> Rotate -> Translate. */
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r_input_area = output_area;
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BLI_rcti_translate(&r_input_area, -translate_x_, -translate_y_);
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RotateOperation::get_rotation_area_of_interest(scale_canvas_,
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rotate_canvas_,
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rotate_sine_,
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rotate_cosine_,
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r_input_area,
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r_input_area);
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ScaleOperation::get_scale_area_of_interest(
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image_canvas, scale_canvas_, scale_, scale_, r_input_area, r_input_area);
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}
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else {
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/* Translate -> Rotate -> Scale. */
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ScaleOperation::get_scale_area_of_interest(
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rotate_canvas_, scale_canvas_, scale_, scale_, output_area, r_input_area);
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RotateOperation::get_rotation_area_of_interest(translate_canvas_,
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rotate_canvas_,
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rotate_sine_,
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rotate_cosine_,
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r_input_area,
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r_input_area);
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BLI_rcti_translate(&r_input_area, -translate_x_, -translate_y_);
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}
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expand_area_for_sampler(r_input_area, sampler_);
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break;
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}
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case X_INPUT_INDEX:
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case Y_INPUT_INDEX:
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case DEGREE_INPUT_INDEX:
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case SCALE_INPUT_INDEX: {
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r_input_area = COM_CONSTANT_INPUT_AREA_OF_INTEREST;
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break;
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}
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}
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}
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void TransformOperation::update_memory_buffer_partial(MemoryBuffer *output,
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const rcti &area,
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Span<MemoryBuffer *> inputs)
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{
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const MemoryBuffer *input_img = inputs[IMAGE_INPUT_INDEX];
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BuffersIterator<float> it = output->iterate_with({}, area);
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if (invert_) {
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transform_inverted(it, input_img);
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}
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else {
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transform(it, input_img);
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}
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}
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void TransformOperation::determine_canvas(const rcti &preferred_area, rcti &r_area)
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{
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const bool image_determined =
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get_input_socket(IMAGE_INPUT_INDEX)->determine_canvas(preferred_area, r_area);
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if (image_determined) {
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rcti image_canvas = r_area;
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rcti unused = COM_AREA_NONE;
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get_input_socket(X_INPUT_INDEX)->determine_canvas(image_canvas, unused);
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get_input_socket(Y_INPUT_INDEX)->determine_canvas(image_canvas, unused);
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get_input_socket(DEGREE_INPUT_INDEX)->determine_canvas(image_canvas, unused);
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get_input_socket(SCALE_INPUT_INDEX)->determine_canvas(image_canvas, unused);
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init_data();
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if (invert_) {
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/* Scale -> Rotate -> Translate. */
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scale_canvas_ = image_canvas;
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ScaleOperation::scale_area(scale_canvas_, scale_, scale_);
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const Size2f max_scale_size = {
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MAX2(BLI_rcti_size_x(&image_canvas), max_scale_canvas_size_.x),
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MAX2(BLI_rcti_size_y(&image_canvas), max_scale_canvas_size_.y)};
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ScaleOperation::clamp_area_size_max(scale_canvas_, max_scale_size);
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RotateOperation::get_rotation_canvas(
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scale_canvas_, rotate_sine_, rotate_cosine_, rotate_canvas_);
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translate_canvas_ = rotate_canvas_;
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BLI_rcti_translate(&translate_canvas_, translate_x_, translate_y_);
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r_area = translate_canvas_;
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}
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else {
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/* Translate -> Rotate -> Scale. */
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translate_canvas_ = image_canvas;
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BLI_rcti_translate(&translate_canvas_, translate_x_, translate_y_);
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RotateOperation::get_rotation_canvas(
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translate_canvas_, rotate_sine_, rotate_cosine_, rotate_canvas_);
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scale_canvas_ = rotate_canvas_;
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ScaleOperation::scale_area(scale_canvas_, scale_, scale_);
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const Size2f max_scale_size = {
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MAX2(BLI_rcti_size_x(&rotate_canvas_), max_scale_canvas_size_.x),
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MAX2(BLI_rcti_size_y(&rotate_canvas_), max_scale_canvas_size_.y)};
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ScaleOperation::clamp_area_size_max(scale_canvas_, max_scale_size);
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r_area = scale_canvas_;
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}
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}
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}
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void TransformOperation::transform(BuffersIterator<float> &it, const MemoryBuffer *input_img)
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{
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float rotate_center_x, rotate_center_y;
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RotateOperation::get_rotation_center(translate_canvas_, rotate_center_x, rotate_center_y);
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float rotate_offset_x, rotate_offset_y;
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RotateOperation::get_rotation_offset(
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translate_canvas_, rotate_canvas_, rotate_offset_x, rotate_offset_y);
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const float scale_center_x = BLI_rcti_size_x(&rotate_canvas_) / 2.0f;
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const float scale_center_y = BLI_rcti_size_y(&rotate_canvas_) / 2.0f;
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float scale_offset_x, scale_offset_y;
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ScaleOperation::get_scale_offset(rotate_canvas_, scale_canvas_, scale_offset_x, scale_offset_y);
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for (; !it.is_end(); ++it) {
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float x = ScaleOperation::scale_coord_inverted(it.x + scale_offset_x, scale_center_x, scale_);
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float y = ScaleOperation::scale_coord_inverted(it.y + scale_offset_y, scale_center_y, scale_);
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x = rotate_offset_x + x;
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y = rotate_offset_y + y;
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RotateOperation::rotate_coords(
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x, y, rotate_center_x, rotate_center_y, rotate_sine_, rotate_cosine_);
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input_img->read_elem_sampled(x - translate_x_, y - translate_y_, sampler_, it.out);
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}
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}
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void TransformOperation::transform_inverted(BuffersIterator<float> &it,
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const MemoryBuffer *input_img)
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{
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const rcti &image_canvas = get_input_operation(IMAGE_INPUT_INDEX)->get_canvas();
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const float scale_center_x = BLI_rcti_size_x(&image_canvas) / 2.0f - translate_x_;
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const float scale_center_y = BLI_rcti_size_y(&image_canvas) / 2.0f - translate_y_;
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float scale_offset_x, scale_offset_y;
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ScaleOperation::get_scale_offset(image_canvas, scale_canvas_, scale_offset_x, scale_offset_y);
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float rotate_center_x, rotate_center_y;
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RotateOperation::get_rotation_center(translate_canvas_, rotate_center_x, rotate_center_y);
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rotate_center_x -= translate_x_;
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rotate_center_y -= translate_y_;
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float rotate_offset_x, rotate_offset_y;
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RotateOperation::get_rotation_offset(
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scale_canvas_, rotate_canvas_, rotate_offset_x, rotate_offset_y);
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for (; !it.is_end(); ++it) {
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float x = rotate_offset_x + (it.x - translate_x_);
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float y = rotate_offset_y + (it.y - translate_y_);
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RotateOperation::rotate_coords(
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x, y, rotate_center_x, rotate_center_y, rotate_sine_, rotate_cosine_);
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x = ScaleOperation::scale_coord_inverted(x + scale_offset_x, scale_center_x, scale_);
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y = ScaleOperation::scale_coord_inverted(y + scale_offset_y, scale_center_y, scale_);
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input_img->read_elem_sampled(x, y, sampler_, it.out);
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}
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}
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} // namespace blender::compositor
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