489 lines
11 KiB
C++
489 lines
11 KiB
C++
/****************************************************************************
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#ifndef __resinfo_H__
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#define __resinfo_H__
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#include "resource.h"
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#include "graphicsystem/Material/materialinstance.h"
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#include "graphicsystem/GraphicObjectManager.h"
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namespace Sprite
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{
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class SpritePackage;
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}
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namespace Resources
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{
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const int MAX_RES_LOAD_PRIORITY = 65535;
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const int DEFAULT_RES_LOAD_PRIORITY = 65535;
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//--------------------------------------------------------------------------------
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/**
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资源有三种表现形态：
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1、在外部存储设备上的表现形态，可能是一个文件，文件的一部分，或者数据库中的一条记录。简称为文件形态
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2、在内存中的资源数据的表现形态，从Resources::Resource的派生类。简称为对象形态
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3、在某个功能模块的上下文环境中的表现形态，比如渲染系统中的一个句柄。 简称为上下文形态
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4、一般来说，一个文件形态对应一个对象形态
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5、对某些资源类型，对象形态和上下文形态是一样的。也就不存在上下文形态
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6、对某些资源类型，对象形态可能对应多种上下文形态，比如MeshRes可用于渲染，也可用于物理
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baseResInfo主要管理上下文形态和它对应的资源形态。当上下文形态不同时，应该存在不同的baseResInfo
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三种对象形态的状态变化
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1、当从文件形态成功加载到对象形态时，该资源信息是已经加载了(Loaded)
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2、当从对象形态成功编译到上下文形态后，该资源信息是已经编译了(Compiled)
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3、当资源信息已经加载并且成功编译后， 该资源信息是可用的(CanUsable)
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4、从性能等角度考虑，不同的资源可能有区别，状态判断函数均实现为虚函数，可派生修改。因此这些状态暂只作为内部使用，不作为外部判断有效性的依据
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*/
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class ResInfoContainer;
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class baseResInfo : public Core::RefCounted
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{
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__DeclareClass(baseResInfo);
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public:
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baseResInfo() :
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priority(DEFAULT_RES_LOAD_PRIORITY),
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isAsynLoading(false),
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container(0),
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defaultResUsed(false),
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needReCompile(false)
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{};
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virtual ~baseResInfo()
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{};
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// 资源ID
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const Resources::ResourceId& GetResID() const {
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return resID;
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}
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void SetResID(const Resources::ResourceId& id){
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resID = id;
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}
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// 资源加载的优先级。 >0 表示延迟加载。数字越大，加载优先级越低
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Priority GetPriority(void) const {
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return priority;
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}
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void SetPriority(Priority p ){
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priority = p;
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}
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// 资源数据对象
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const GPtr<Resources::Resource>& GetRes() const{
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return resData;
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}
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void SetRes(const GPtr<Resources::Resource>& res){
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resData = res;
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}
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void SetContainer(ResInfoContainer* m)
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{
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container = m;
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}
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ResInfoContainer* GetContainer()
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{
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return container;
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}
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// 上下文形态是否存在。默认情况下，对象形态和上下文形态一致。派生类根据需要改写
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virtual bool IsCompiled() const
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{
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return IsLoaded()&&!needReCompile;
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}
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// 内部使用的接口
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// 资源信息是否准备完毕，可以被业务逻辑使用了。
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// 不同的类型资源的状态判断不同。派生类应该根据需要重写改函数
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virtual bool CanUsable() const
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{
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return IsLoaded() && IsCompiled();
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}
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// 对象形态是否存在并加载
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virtual bool IsLoaded() const
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{
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return resData && resData->GetState() == Resources::Resource::Loaded;
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}
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// 编译上下文形态
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bool Compile();
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// 需要的派生类重载该函数，完成上下文形态的编译和赋值
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virtual void OnCompile(){ }
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// 放弃，变为初始状态
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virtual void Discard(){
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resData = 0;
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resID.Clear();
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isAsynLoading = false;
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priority = DEFAULT_RES_LOAD_PRIORITY;
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}
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// 设置默认的资源数据
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virtual void AssignDefaultResData(const GPtr<baseResInfo>& defaultRes)
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{
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if ( defaultRes )
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{
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ResourceId tempResID;
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Priority tempPriority;
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bool tempAsynLoading;
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tempResID = resID;
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tempPriority = priority;
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tempAsynLoading = isAsynLoading;
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Discard();
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//ResetHandle();
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resID = tempResID;
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priority = tempPriority;
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isAsynLoading = tempAsynLoading;
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resData = defaultRes->resData;
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defaultResUsed = true;
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}
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}
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// 主要是为了支持fbx导入加入了这个方法
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// 用于其他情况下请注意，可能会出现bug
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// 这个copy需要res的信息是完整的，而且copy完了需要删除之前的res，否则就会出问题
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//
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virtual void CopyFrom(const GPtr<baseResInfo>& res)
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{
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if ( res )
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{
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ResourceId tempResID;
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Priority tempPriority;
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bool tempAsynLoading;
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tempResID = resID;
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tempPriority = priority;
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tempAsynLoading = isAsynLoading;
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Discard();
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resID = tempResID;
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priority = tempPriority;
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isAsynLoading = tempAsynLoading;
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resData = res->resData;
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AssignDefaultResCompile( res );
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defaultResUsed = false;
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}
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}
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// 设置默认的上下文形态
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virtual void AssignDefaultResCompile(const GPtr<baseResInfo>& defaultRes)
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{
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return;
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}
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// 是否正在异步加载
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bool IsAsynLoading() const
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{
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return isAsynLoading;
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}
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void SetAsynLoading(bool b)
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{
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isAsynLoading = b;
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}
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bool IsDefaultResUsed()
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{
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return defaultResUsed;
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}
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void SetDefaultResUsed(bool isUsed)
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{
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defaultResUsed = isUsed;
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}
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void SetNeedReCompile(bool isNeedReCompile)
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{
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needReCompile = isNeedReCompile;
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}
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bool IsNeedReCompile()
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{
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return needReCompile;
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}
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virtual void ResetHandle()
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{
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}
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protected:
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friend class ResourceManager;
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Priority priority;
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Resources::ResourceId resID;
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GPtr<Resources::Resource> resData;
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bool isAsynLoading;
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ResInfoContainer* container;
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bool defaultResUsed;
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bool needReCompile;
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};
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//------------------------------------------------------------------------
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class TextureResInfo : public baseResInfo
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{
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__DeclareSubClass(TextureResInfo,baseResInfo);
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public:
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TextureResInfo()
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{
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texHandle = RenderBase::TextureHandle();
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}
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virtual ~TextureResInfo()
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{
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}
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void SetData(const Resources::ResourceId& tex_id, const RenderBase::TextureHandle& handle)
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{
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resID = tex_id;
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texHandle = handle;
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}
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void SetHandle(const RenderBase::TextureHandle& handle)
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{
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texHandle = handle;
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}
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const RenderBase::TextureHandle& GetHandle() const
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{
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return texHandle;
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}
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// 上下文形态是否存在
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virtual bool IsCompiled() const
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{
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#ifdef __GENESIS_EDITOR__
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return GetHandle().IsValid() && Super::IsCompiled();
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#else
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return GetHandle().IsValid();
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#endif
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}
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virtual void ResetHandle()
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{
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texHandle = RenderBase::TextureHandle();
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}
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virtual void Discard();
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// 编译上下文形态
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virtual void OnCompile();
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virtual void AssignDefaultResCompile(const GPtr<baseResInfo>& defaultRes);
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#ifndef __GENESIS_EDITOR__
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virtual bool CanUsable() const
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{
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return IsCompiled();
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}
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#endif
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protected:
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RenderBase::TextureHandle texHandle;
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};
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//--------------------------------------------------------------------------------
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class PrimitiveResInfo : public baseResInfo
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{
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__DeclareSubClass(PrimitiveResInfo,baseResInfo);
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public:
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PrimitiveResInfo()
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{
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primHandle = RenderBase::PrimitiveHandle();
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}
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virtual ~PrimitiveResInfo()
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{
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}
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const RenderBase::PrimitiveHandle& GetHandle() const
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{
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return primHandle;
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}
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void SetHandle( const RenderBase::PrimitiveHandle& h)
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{
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primHandle = h;
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}
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// 上下文形态是否存在
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virtual bool IsCompiled() const
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{
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#ifdef __GENESIS_EDITOR__
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return GetHandle().IsValid() && Super::IsCompiled();
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#else
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return GetHandle().IsValid();
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#endif
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}
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virtual void ResetHandle()
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{
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primHandle = RenderBase::PrimitiveHandle();
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}
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virtual void Discard();
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// 编译上下文形态
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virtual void OnCompile();
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virtual void AssignDefaultResCompile(const GPtr<baseResInfo>& defaultRes);
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#ifndef __GENESIS_EDITOR__
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virtual bool CanUsable() const
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{
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return IsCompiled();
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}
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#endif
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protected:
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RenderBase::PrimitiveHandle primHandle;
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};
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//------------------------------------------------------------------------
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class MaterialResInfo : public baseResInfo
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{
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__DeclareSubClass(MaterialResInfo,baseResInfo);
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public:
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MaterialResInfo()
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{
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matIns = NULL;
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mbSave = true;
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mbImport = false;
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}
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virtual ~MaterialResInfo()
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{
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}
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const Resources::ResourceId& GetMatID() const
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{
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return GetResID();
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}
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void SetMatID(const Resources::ResourceId& matID)
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{
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SetResID(matID);
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}
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const GPtr<Graphic::MaterialInstance>& GetHandle() const
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{
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return matIns;
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}
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GPtr<Graphic::MaterialInstance>& GetHandle()
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{
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return matIns;
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}
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void SetHandle(const GPtr<Graphic::MaterialInstance>& m )
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{
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matIns = m;
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}
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void SetSave(const bool bFlag )
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{
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mbSave = bFlag;
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}
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bool GetSave()
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{
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return mbSave;
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}
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void SetImport(const bool bImport)
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{
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mbImport = bImport;
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}
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bool GetImport()
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{
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return mbImport;
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}
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virtual void AssignDefaultResCompile(const GPtr<baseResInfo>& defaultRes);
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virtual void ResetHandle()
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{
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matIns = NULL;
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}
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virtual void CopyFrom(const GPtr<baseResInfo>& res)
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{
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baseResInfo::CopyFrom(res);
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GPtr<MaterialResInfo> matInfo = res.downcast<MaterialResInfo>();
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mbSave = matInfo->mbSave;
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mbImport = matInfo->mbImport;
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}
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protected:
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// 上下文形态是否存在
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virtual bool IsCompiled() const
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{
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return GetHandle().isvalid()&&Super::IsCompiled();
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}
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// 编译上下文形态
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virtual void OnCompile();
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protected:
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GPtr<Graphic::MaterialInstance> matIns;
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bool mbSave;
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bool mbImport;
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friend class ResourceManager;
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};
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class SpritePackageResInfo : public baseResInfo
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{
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__DeclareSubClass(SpritePackageResInfo,baseResInfo);
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public:
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GPtr<Sprite::SpritePackage> GetPackage() const;
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};
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//------------------------------------------------------------------------
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// 下列是简单的资源，不需要生成特定的对象
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typedef baseResInfo TemplateResInfo;
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typedef baseResInfo AudioResInfo;
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typedef baseResInfo AudioResInfo;
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typedef baseResInfo RawResInfo;
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typedef baseResInfo AnimationResInfo;
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typedef baseResInfo SkeletonResInfo;
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typedef baseResInfo PhysXMaterialResInfo;
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//------------------------------------------------------------------------
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}
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#endif // __resinfo_H__
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