mirror of https://github.com/axmolengine/axmol.git
262 lines
8.0 KiB
C++
262 lines
8.0 KiB
C++
/****************************************************************************
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Copyright (c) 2010-2012 cocos2d-x.org
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Copyright (c) 2008-2010 Ricardo Quesada
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Copyright (c) 2011 Zynga Inc.
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http://www.cocos2d-x.org
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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 __CCTEXTURE_CACHE_H__
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#define __CCTEXTURE_CACHE_H__
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#include <string>
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#include <mutex>
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#include <thread>
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#include <condition_variable>
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#include <queue>
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#include <string>
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#include <unordered_map>
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#include "cocoa/CCObject.h"
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#include "textures/CCTexture2D.h"
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#include "platform/CCImage.h"
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#if CC_ENABLE_CACHE_TEXTURE_DATA
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#include "platform/CCImage.h"
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#include <list>
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#endif
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NS_CC_BEGIN
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/**
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* @addtogroup textures
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* @{
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*/
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/** @brief Singleton that handles the loading of textures
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* Once the texture is loaded, the next time it will return
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* a reference of the previously loaded texture reducing GPU & CPU memory
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*/
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class CC_DLL TextureCache : public Object
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{
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public:
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/** Returns the shared instance of the cache */
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static TextureCache * getInstance();
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/** @deprecated Use getInstance() instead */
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CC_DEPRECATED_ATTRIBUTE static TextureCache * sharedTextureCache() { return TextureCache::getInstance(); }
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/** purges the cache. It releases the retained instance.
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@since v0.99.0
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*/
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static void destroyInstance();
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/** @deprecated Use destroyInstance() instead */
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CC_DEPRECATED_ATTRIBUTE static void purgeSharedTextureCache() { return TextureCache::destroyInstance(); }
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/** Reload all textures
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It's only useful when the value of CC_ENABLE_CACHE_TEXTURE_DATA is 1
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*/
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static void reloadAllTextures();
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public:
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TextureCache();
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/**
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* @js NA
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* @lua NA
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*/
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virtual ~TextureCache();
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/**
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* @js NA
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* @lua NA
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*/
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const char* description(void) const;
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// Dictionary* snapshotTextures();
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/** Returns a Texture2D object given an filename.
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* If the filename was not previously loaded, it will create a new Texture2D
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* object and it will return it. It will use the filename as a key.
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* Otherwise it will return a reference of a previously loaded image.
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* Supported image extensions: .png, .bmp, .tiff, .jpeg, .pvr, .gif
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*/
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Texture2D* addImage(const std::string &filepath);
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/* Returns a Texture2D object given a file image
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* If the file image was not previously loaded, it will create a new Texture2D object and it will return it.
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* Otherwise it will load a texture in a new thread, and when the image is loaded, the callback will be called with the Texture2D as a parameter.
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* The callback will be called from the main thread, so it is safe to create any cocos2d object from the callback.
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* Supported image extensions: .png, .jpg
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* @since v0.8
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*/
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virtual void addImageAsync(const std::string &filepath, Object *target, SEL_CallFuncO selector);
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/** Returns a Texture2D object given an Image.
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* If the image was not previously loaded, it will create a new Texture2D object and it will return it.
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* Otherwise it will return a reference of a previously loaded image.
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* The "key" parameter will be used as the "key" for the cache.
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* If "key" is nil, then a new texture will be created each time.
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*/
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Texture2D* addImage(Image *image, const std::string &key);
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CC_DEPRECATED_ATTRIBUTE Texture2D* addUIImage(Image *image, const char *key) { return addImage(image,key); }
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/** Returns an already created texture. Returns nil if the texture doesn't exist.
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@since v0.99.5
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*/
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Texture2D* getTextureForKey(const std::string& key) const;
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CC_DEPRECATED_ATTRIBUTE Texture2D* textureForKey(const char* key) const { return getTextureForKey(key); }
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/** Purges the dictionary of loaded textures.
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* Call this method if you receive the "Memory Warning"
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* In the short term: it will free some resources preventing your app from being killed
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* In the medium term: it will allocate more resources
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* In the long term: it will be the same
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*/
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void removeAllTextures();
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/** Removes unused textures
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* Textures that have a retain count of 1 will be deleted
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* It is convenient to call this method after when starting a new Scene
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* @since v0.8
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*/
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void removeUnusedTextures();
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/** Deletes a texture from the cache given a texture
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*/
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void removeTexture(Texture2D* texture);
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/** Deletes a texture from the cache given a its key name
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@since v0.99.4
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*/
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void removeTextureForKey(const std::string &key);
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/** Output to CCLOG the current contents of this TextureCache
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* This will attempt to calculate the size of each texture, and the total texture memory in use
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*
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* @since v1.0
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*/
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void dumpCachedTextureInfo() const;
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private:
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void addImageAsyncCallBack(float dt);
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void loadImage();
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public:
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struct AsyncStruct
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{
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public:
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AsyncStruct(const std::string& fn, Object *t, SEL_CallFuncO s) : filename(fn), target(t), selector(s) {}
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std::string filename;
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Object *target;
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SEL_CallFuncO selector;
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};
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protected:
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typedef struct _ImageInfo
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{
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AsyncStruct *asyncStruct;
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Image *image;
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} ImageInfo;
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std::thread* _loadingThread;
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std::queue<AsyncStruct*>* _asyncStructQueue;
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std::queue<ImageInfo*>* _imageInfoQueue;
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std::mutex _asyncStructQueueMutex;
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std::mutex _imageInfoMutex;
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std::mutex _sleepMutex;
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std::condition_variable _sleepCondition;
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bool _needQuit;
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int _asyncRefCount;
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std::unordered_map<std::string, Texture2D*> _textures;
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static TextureCache *_sharedTextureCache;
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};
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#if CC_ENABLE_CACHE_TEXTURE_DATA
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class VolatileTexture
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{
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typedef enum {
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kInvalid = 0,
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kImageFile,
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kImageData,
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kString,
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kImage,
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}ccCachedImageType;
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public:
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VolatileTexture(Texture2D *t);
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~VolatileTexture();
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static void addImageTexture(Texture2D *tt, const char* imageFileName);
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static void addStringTexture(Texture2D *tt, const char* text, const FontDefinition& fontDefinition);
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static void addDataTexture(Texture2D *tt, void* data, int dataLen, Texture2D::PixelFormat pixelFormat, const Size& contentSize);
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static void addImage(Texture2D *tt, Image *image);
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static void setTexParameters(Texture2D *t, const Texture2D::TexParams &texParams);
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static void removeTexture(Texture2D *t);
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static void reloadAllTextures();
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public:
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static std::list<VolatileTexture*> _textures;
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static bool _isReloading;
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private:
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// find VolatileTexture by Texture2D*
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// if not found, create a new one
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static VolatileTexture* findVolotileTexture(Texture2D *tt);
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protected:
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Texture2D *_texture;
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Image *_uiImage;
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ccCachedImageType _cashedImageType;
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void *_textureData;
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int _dataLen;
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Size _textureSize;
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Texture2D::PixelFormat _pixelFormat;
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std::string _fileName;
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Texture2D::TexParams _texParams;
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std::string _text;
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FontDefinition _fontDefinition;
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};
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#endif
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// end of textures group
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/// @}
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NS_CC_END
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#endif //__CCTEXTURE_CACHE_H__
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