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// 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_TEXTURE_CONTENTS_H_
#define FLUTTER_IMPELLER_ENTITY_CONTENTS_TEXTURE_CONTENTS_H_
#include <functional>
#include <memory>
#include <vector>
#include "flutter/fml/macros.h"
#include "impeller/core/sampler_descriptor.h"
#include "impeller/entity/contents/contents.h"
#include "impeller/geometry/path.h"
namespace impeller {
class Texture;
class TextureContents final : public Contents {
public:
TextureContents();
~TextureContents() override;
/// @brief A common case factory that marks the texture contents as having a
/// destination rectangle. In this situation, a subpass can be avoided
/// when image filters are applied.
static std::shared_ptr<TextureContents> MakeRect(Rect destination);
void SetLabel(std::string label);
void SetDestinationRect(Rect rect);
void SetTexture(std::shared_ptr<Texture> texture);
std::shared_ptr<Texture> GetTexture() const;
void SetSamplerDescriptor(SamplerDescriptor desc);
const SamplerDescriptor& GetSamplerDescriptor() const;
void SetSourceRect(const Rect& source_rect);
const Rect& GetSourceRect() const;
void SetOpacity(Scalar opacity);
Scalar GetOpacity() const;
void SetStencilEnabled(bool enabled);
// |Contents|
std::optional<Rect> GetCoverage(const Entity& entity) const override;
// |Contents|
std::optional<Snapshot> RenderToSnapshot(
const ContentContext& renderer,
const Entity& entity,
std::optional<Rect> coverage_limit = std::nullopt,
const std::optional<SamplerDescriptor>& sampler_descriptor = std::nullopt,
bool msaa_enabled = true,
const std::string& label = "Texture Snapshot") const override;
// |Contents|
bool Render(const ContentContext& renderer,
const Entity& entity,
RenderPass& pass) const override;
// |Contents|
bool CanInheritOpacity(const Entity& entity) const override;
// |Contents|
void SetInheritedOpacity(Scalar opacity) override;
void SetDeferApplyingOpacity(bool defer_applying_opacity);
private:
std::string label_;
Rect destination_rect_;
bool stencil_enabled_ = true;
std::shared_ptr<Texture> texture_;
SamplerDescriptor sampler_descriptor_ = {};
Rect source_rect_;
Scalar opacity_ = 1.0f;
Scalar inherited_opacity_ = 1.0f;
bool defer_applying_opacity_ = false;
TextureContents(const TextureContents&) = delete;
TextureContents& operator=(const TextureContents&) = delete;
};
} // namespace impeller
#endif // FLUTTER_IMPELLER_ENTITY_CONTENTS_TEXTURE_CONTENTS_H_