texture_filter_input.h

Go to the documentation of this file.

// 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.
 
#ifndef FLUTTER_IMPELLER_ENTITY_CONTENTS_FILTERS_INPUTS_TEXTURE_FILTER_INPUT_H_
#define FLUTTER_IMPELLER_ENTITY_CONTENTS_FILTERS_INPUTS_TEXTURE_FILTER_INPUT_H_
 
#include "impeller/entity/contents/filters/inputs/filter_input.h"
 
#include "impeller/geometry/matrix.h"
 
namespace impeller {
 
class TextureFilterInput final : public FilterInput {
 public:
  ~TextureFilterInput() override;
 
  // |FilterInput|
  std::optional<Snapshot> GetSnapshot(std::string_view label,
                                      const ContentContext& renderer,
                                      const Entity& entity,
                                      std::optional<Rect> coverage_limit,
                                      int32_t mip_count) const override;
 
  // |FilterInput|
  std::optional<Rect> GetCoverage(const Entity& entity) const override;
 
  // |FilterInput|
  Matrix GetLocalTransform(const Entity& entity) const override;
 
 private:
  explicit TextureFilterInput(std::shared_ptr<Texture> texture,
                              Matrix local_transform = Matrix());
 
  std::shared_ptr<Texture> texture_;
  Matrix local_transform_;
 
  friend FilterInput;
};
 
}  // namespace impeller
 
#endif  // FLUTTER_IMPELLER_ENTITY_CONTENTS_FILTERS_INPUTS_TEXTURE_FILTER_INPUT_H_