1 /* 2 * Copyright (c) 2024 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef SCENE_SRC_MESH_SAMPLER_H 17 #define SCENE_SRC_MESH_SAMPLER_H 18 19 #include <scene/ext/component.h> 20 #include <scene/interface/intf_texture.h> 21 22 #include <meta/ext/implementation_macros.h> 23 #include <meta/ext/object.h> 24 #include <meta/interface/interface_helpers.h> 25 #include <meta/interface/resource/intf_dynamic_resource.h> 26 27 SCENE_BEGIN_NAMESPACE() 28 29 META_REGISTER_CLASS(Sampler, "29637952-7747-4233-bdbf-16e51405d2e9", META_NS::ObjectCategoryBits::NO_CATEGORY) 30 31 class ISamplerInternal : public CORE_NS::IInterface { 32 META_INTERFACE(CORE_NS::IInterface, ISamplerInternal, "20f22389-2662-4890-9d40-8e2401748f8e") 33 public: 34 virtual void SetScene(const IInternalScene::Ptr& scene) = 0; 35 virtual bool UpdateSamplerFromHandle( 36 RENDER_NS::IRenderContext& context, const RENDER_NS::RenderHandleReference& handle) = 0; 37 virtual RENDER_NS::RenderHandleReference GetHandleFromSampler(RENDER_NS::IRenderContext& context) const = 0; 38 }; 39 40 class Sampler 41 : public META_NS::IntroduceInterfaces<META_NS::MetaObject, ISampler, ISamplerInternal, META_NS::IPropertyOwner, 42 META_NS::IDynamicResource, META_NS::IMetadataOwner, META_NS::IResetableObject> { 43 public: 44 META_OBJECT(Sampler, ClassId::Sampler, IntroduceInterfaces) 45 META_BEGIN_STATIC_DATA() 46 META_STATIC_PROPERTY_DATA(ISampler, SamplerFilter, MagFilter) 47 META_STATIC_PROPERTY_DATA(ISampler, SamplerFilter, MinFilter) 48 META_STATIC_PROPERTY_DATA(ISampler, SamplerFilter, MipMapMode) 49 META_STATIC_PROPERTY_DATA(ISampler, SamplerAddressMode, AddressModeU) 50 META_STATIC_PROPERTY_DATA(ISampler, SamplerAddressMode, AddressModeV) 51 META_STATIC_PROPERTY_DATA(ISampler, SamplerAddressMode, AddressModeW) 52 META_STATIC_EVENT_DATA(META_NS::IDynamicResource, META_NS::IOnChanged, OnResourceChanged) 53 META_END_STATIC_DATA() 54 55 META_IMPLEMENT_PROPERTY(SamplerFilter, MagFilter) 56 META_IMPLEMENT_PROPERTY(SamplerFilter, MinFilter) 57 META_IMPLEMENT_PROPERTY(SamplerFilter, MipMapMode) 58 META_IMPLEMENT_PROPERTY(SamplerAddressMode, AddressModeU) 59 META_IMPLEMENT_PROPERTY(SamplerAddressMode, AddressModeV) 60 META_IMPLEMENT_PROPERTY(SamplerAddressMode, AddressModeW) 61 62 META_IMPLEMENT_EVENT(META_NS::IOnChanged, OnResourceChanged) 63 64 public: 65 void OnMetadataConstructed(const META_NS::StaticMetadata& m, CORE_NS::IInterface& i) override; 66 void OnPropertyChanged(const META_NS::IProperty&) override; 67 68 protected: // ISamplerInternal 69 void SetScene(const IInternalScene::Ptr& scene) override; 70 bool UpdateSamplerFromHandle( 71 RENDER_NS::IRenderContext& context, const RENDER_NS::RenderHandleReference& handle) override; 72 RENDER_NS::RenderHandleReference GetHandleFromSampler(RENDER_NS::IRenderContext& context) const override; 73 74 protected: // IResetableObject 75 void ResetObject() override; 76 77 private: 78 struct SamplerInfo { 79 RENDER_NS::RenderHandleReference handle; 80 RENDER_NS::GpuSamplerDesc descriptor; 81 bool isDefault {}; 82 }; 83 84 const META_NS::IProperty* GetExistingProperty(BASE_NS::string_view name) const; 85 META_NS::IProperty* GetExistingProperty(BASE_NS::string_view name); 86 RENDER_NS::RenderHandleReference GetSamplerHandle(const Sampler::SamplerInfo& info) const noexcept; 87 SamplerInfo GetDefaultSampler() const; 88 mutable SamplerInfo sampler_; 89 IInternalScene::WeakPtr scene_; 90 91 private: // Transaction related 92 bool CanNotifyChanged(); 93 void NotifyChanged(); 94 void StartTransaction(); 95 void EndTransaction(bool changed); 96 mutable CORE_NS::Mutex transaction_; 97 uint32_t setting_ {}; 98 bool changedDuringTransaction_ {}; 99 }; 100 101 SCENE_END_NAMESPACE() 102 103 #endif // SCENE_SRC_MESH_SAMPLER_H 104