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https://github.com/flutter/flutter.git
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c416b6e19e
* [Impeller Scene] Add mutation log to nodes * Apply the bind pose matrix when the skin is initialized * Refactor property resolver to modify decomposed properties * Make the property resolvers additive again to support complex blending * Normalize clip weights * Fix UI-side animation bugs and add looping config * Backface culling * Make dart analyzer happy * Incorporate vertex colors for imported meshes again * Address comments
138 lines
3.5 KiB
C++
138 lines
3.5 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#pragma once
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#include <memory>
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#include <mutex>
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#include <optional>
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#include <vector>
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#include "flutter/fml/macros.h"
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#include "impeller/base/thread.h"
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#include "impeller/base/thread_safety.h"
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#include "impeller/geometry/matrix.h"
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#include "impeller/renderer/render_target.h"
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#include "impeller/renderer/texture.h"
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#include "impeller/scene/animation/animation.h"
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#include "impeller/scene/animation/animation_clip.h"
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#include "impeller/scene/animation/animation_player.h"
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#include "impeller/scene/camera.h"
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#include "impeller/scene/mesh.h"
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#include "impeller/scene/scene_encoder.h"
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#include "impeller/scene/skin.h"
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namespace impeller {
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namespace scene {
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class Node final {
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public:
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class MutationLog {
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public:
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struct SetTransformEntry {
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Matrix transform;
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};
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struct SetAnimationStateEntry {
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std::string animation_name;
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bool playing = false;
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bool loop = false;
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Scalar weight = 0;
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Scalar time_scale = 1;
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};
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struct SeekAnimationEntry {
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std::string animation_name;
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float time = 0;
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};
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using Entry = std::
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variant<SetTransformEntry, SetAnimationStateEntry, SeekAnimationEntry>;
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void Append(const Entry& entry);
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private:
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std::optional<std::vector<Entry>> Flush();
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RWMutex write_mutex_;
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bool dirty_ IPLR_GUARDED_BY(write_mutex_) = false;
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std::vector<Entry> entries_ IPLR_GUARDED_BY(write_mutex_);
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friend Node;
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};
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static std::shared_ptr<Node> MakeFromFlatbuffer(
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const fml::Mapping& ipscene_mapping,
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Allocator& allocator);
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static std::shared_ptr<Node> MakeFromFlatbuffer(const fb::Scene& scene,
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Allocator& allocator);
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Node();
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~Node();
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const std::string& GetName() const;
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void SetName(const std::string& new_name);
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Node* GetParent() const;
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std::shared_ptr<Node> FindChildByName(
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const std::string& name,
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bool exclude_animation_players = false) const;
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std::shared_ptr<Animation> FindAnimationByName(const std::string& name) const;
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AnimationClip* AddAnimation(const std::shared_ptr<Animation>& animation);
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void SetLocalTransform(Matrix transform);
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Matrix GetLocalTransform() const;
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void SetGlobalTransform(Matrix transform);
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Matrix GetGlobalTransform() const;
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bool AddChild(std::shared_ptr<Node> child);
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std::vector<std::shared_ptr<Node>>& GetChildren();
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void SetMesh(Mesh mesh);
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Mesh& GetMesh();
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void SetIsJoint(bool is_joint);
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bool IsJoint() const;
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bool Render(SceneEncoder& encoder,
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Allocator& allocator,
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const Matrix& parent_transform);
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void AddMutation(const MutationLog::Entry& entry);
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private:
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void UnpackFromFlatbuffer(
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const fb::Node& node,
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const std::vector<std::shared_ptr<Node>>& scene_nodes,
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const std::vector<std::shared_ptr<Texture>>& textures,
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Allocator& allocator);
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mutable MutationLog mutation_log_;
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Matrix local_transform_;
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std::string name_;
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bool is_root_ = false;
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bool is_joint_ = false;
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Node* parent_ = nullptr;
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std::vector<std::shared_ptr<Node>> children_;
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Mesh mesh_;
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// For convenience purposes, deserialized nodes hang onto an animation library
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std::vector<std::shared_ptr<Animation>> animations_;
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mutable std::optional<AnimationPlayer> animation_player_;
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std::unique_ptr<Skin> skin_;
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FML_DISALLOW_COPY_AND_ASSIGN(Node);
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friend Scene;
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};
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} // namespace scene
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} // namespace impeller
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