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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.
#pragma once
#include <optional>
#include "flutter/fml/macros.h"
#include "impeller/aiks/paint.h"
#include "impeller/entity/entity_pass_delegate.h"
namespace impeller {
class EntityPass;
class PaintPassDelegate final : public EntityPassDelegate {
public:
explicit PaintPassDelegate(Paint paint);
// |EntityPassDelgate|
~PaintPassDelegate() override;
// |EntityPassDelgate|
bool CanElide() override;
// |EntityPassDelgate|
bool CanCollapseIntoParentPass(EntityPass* entity_pass) override;
// |EntityPassDelgate|
std::shared_ptr<Contents> CreateContentsForSubpassTarget(
std::shared_ptr<Texture> target,
const Matrix& effect_transform) override;
private:
const Paint paint_;
FML_DISALLOW_COPY_AND_ASSIGN(PaintPassDelegate);
};
/// A delegate that attempts to forward opacity from a save layer to
/// child contents.
///
/// Currently this has a hardcoded limit of 3 entities in a pass, and
/// cannot forward to child subpass delegates.
class OpacityPeepholePassDelegate final : public EntityPassDelegate {
public:
explicit OpacityPeepholePassDelegate(Paint paint);
// |EntityPassDelgate|
~OpacityPeepholePassDelegate() override;
// |EntityPassDelgate|
bool CanElide() override;
// |EntityPassDelgate|
bool CanCollapseIntoParentPass(EntityPass* entity_pass) override;
// |EntityPassDelgate|
std::shared_ptr<Contents> CreateContentsForSubpassTarget(
std::shared_ptr<Texture> target,
const Matrix& effect_transform) override;
private:
const Paint paint_;
FML_DISALLOW_COPY_AND_ASSIGN(OpacityPeepholePassDelegate);
};
} // namespace impeller