impeller/entity/contents/filters/matrix_filter_contents.cc

// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "impeller/entity/contents/filters/matrix_filter_contents.h"

namespace impeller {

MatrixFilterContents::MatrixFilterContents() = default;

MatrixFilterContents::~MatrixFilterContents() = default;

void MatrixFilterContents::SetMatrix(Matrix matrix) {
  matrix_ = matrix;
}

Matrix MatrixFilterContents::GetLocalTransform(
    const Matrix& parent_transform) const {
  return parent_transform.Invert() * matrix_ * parent_transform;
}

std::optional<Snapshot> MatrixFilterContents::RenderFilter(
    const FilterInput::Vector& inputs,
    const ContentContext& renderer,
    const Entity& entity,
    const Matrix& effect_transform,
    const Rect& coverage) const {
  return inputs[0]->GetSnapshot(renderer, entity);
}

}  // namespace impeller