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axmol/cocos2dx/textures/CCTextureCache.cpp

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/****************************************************************************
Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2008-2010 Ricardo Quesada
Copyright (c) 2011 Zynga Inc.
http://www.cocos2d-x.org
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#include <errno.h>
#include <stack>
#include <cctype>
#include <list>
#include "CCTextureCache.h"
#include "CCTexture2D.h"
#include "ccMacros.h"
#include "CCDirector.h"
#include "platform/CCFileUtils.h"
#include "platform/CCThread.h"
#include "support/ccUtils.h"
#include "CCScheduler.h"
#include "cocoa/CCString.h"
#ifdef EMSCRIPTEN
#include <emscripten/emscripten.h>
#include "platform/emscripten/CCTextureCacheEmscripten.h"
#endif // EMSCRIPTEN
using namespace std;
NS_CC_BEGIN
// implementation TextureCache
TextureCache* TextureCache::_sharedTextureCache = nullptr;
TextureCache * TextureCache::getInstance()
{
if (!_sharedTextureCache)
{
#ifdef EMSCRIPTEN
_sharedTextureCache = new TextureCacheEmscripten();
#else
_sharedTextureCache = new TextureCache();
#endif // EMSCRIPTEN
}
return _sharedTextureCache;
}
TextureCache::TextureCache()
: _loadingThread(nullptr)
, _asyncStructQueue(nullptr)
, _imageInfoQueue(nullptr)
, _needQuit(false)
, _asyncRefCount(0)
, _textures(new Dictionary())
{
CCASSERT(_sharedTextureCache == nullptr, "Attempted to allocate a second instance of a singleton.");
}
TextureCache::~TextureCache()
{
CCLOGINFO("cocos2d: deallocing TextureCache: %p", this);
CC_SAFE_RELEASE(_textures);
CC_SAFE_DELETE(_loadingThread);
_sharedTextureCache = nullptr;
}
void TextureCache::destroyInstance()
{
// notify sub thread to quick
_sharedTextureCache->_needQuit = true;
_sharedTextureCache->_sleepCondition.notify_one();
if (_sharedTextureCache->_loadingThread) _sharedTextureCache->_loadingThread->join();
CC_SAFE_RELEASE_NULL(_sharedTextureCache);
}
const char* TextureCache::description() const
{
return String::createWithFormat("<TextureCache | Number of textures = %u>", _textures->count())->getCString();
}
Dictionary* TextureCache::snapshotTextures()
{
Dictionary* pRet = new Dictionary();
DictElement* pElement = NULL;
CCDICT_FOREACH(_textures, pElement)
{
pRet->setObject(pElement->getObject(), pElement->getStrKey());
}
pRet->autorelease();
return pRet;
}
void TextureCache::addImageAsync(const char *path, Object *target, SEL_CallFuncO selector)
{
CCASSERT(path != NULL, "TextureCache: fileimage MUST not be NULL");
Texture2D *texture = NULL;
// optimization
std::string pathKey = path;
pathKey = FileUtils::getInstance()->fullPathForFilename(pathKey.c_str());
texture = static_cast<Texture2D*>(_textures->objectForKey(pathKey.c_str()));
std::string fullpath = pathKey;
if (texture != NULL)
{
if (target && selector)
{
(target->*selector)(texture);
}
return;
}
// lazy init
if (_asyncStructQueue == NULL)
{
_asyncStructQueue = new queue<AsyncStruct*>();
_imageInfoQueue = new queue<ImageInfo*>();
// create a new thread to load images
_loadingThread = new std::thread(&TextureCache::loadImage, this);
_needQuit = false;
}
if (0 == _asyncRefCount)
{
Director::getInstance()->getScheduler()->scheduleSelector(schedule_selector(TextureCache::addImageAsyncCallBack), this, 0, false);
}
++_asyncRefCount;
if (target)
{
target->retain();
}
// generate async struct
AsyncStruct *data = new AsyncStruct(fullpath, target, selector);
// add async struct into queue
_asyncStructQueueMutex.lock();
_asyncStructQueue->push(data);
_asyncStructQueueMutex.unlock();
_sleepCondition.notify_one();
}
void TextureCache::loadImage()
{
AsyncStruct *pAsyncStruct = nullptr;
while (true)
{
// create autorelease pool for iOS
Thread thread;
thread.createAutoreleasePool();
std::queue<AsyncStruct*> *pQueue = _asyncStructQueue;
_asyncStructQueueMutex.lock();
if (pQueue->empty())
{
_asyncStructQueueMutex.unlock();
if (_needQuit) {
break;
}
else {
std::unique_lock<std::mutex> lk(_sleepMutex);
_sleepCondition.wait(lk);
continue;
}
}
else
{
pAsyncStruct = pQueue->front();
pQueue->pop();
_asyncStructQueueMutex.unlock();
}
const char *filename = pAsyncStruct->filename.c_str();
// generate image
Image *pImage = new Image();
if (pImage && !pImage->initWithImageFileThreadSafe(filename))
{
CC_SAFE_RELEASE(pImage);
CCLOG("can not load %s", filename);
continue;
}
// generate image info
ImageInfo *pImageInfo = new ImageInfo();
pImageInfo->asyncStruct = pAsyncStruct;
pImageInfo->image = pImage;
// put the image info into the queue
_imageInfoMutex.lock();
_imageInfoQueue->push(pImageInfo);
_imageInfoMutex.unlock();
}
if(_asyncStructQueue != nullptr)
{
delete _asyncStructQueue;
_asyncStructQueue = nullptr;
delete _imageInfoQueue;
_imageInfoQueue = nullptr;
}
}
void TextureCache::addImageAsyncCallBack(float dt)
{
// the image is generated in loading thread
std::queue<ImageInfo*> *imagesQueue = _imageInfoQueue;
_imageInfoMutex.lock();
if (imagesQueue->empty())
{
_imageInfoMutex.unlock();
}
else
{
ImageInfo *pImageInfo = imagesQueue->front();
imagesQueue->pop();
_imageInfoMutex.unlock();
AsyncStruct *pAsyncStruct = pImageInfo->asyncStruct;
Image *pImage = pImageInfo->image;
Object *target = pAsyncStruct->target;
SEL_CallFuncO selector = pAsyncStruct->selector;
const char* filename = pAsyncStruct->filename.c_str();
// generate texture in render thread
Texture2D *texture = new Texture2D();
texture->initWithImage(pImage);
#if CC_ENABLE_CACHE_TEXTURE_DATA
// cache the texture file name
VolatileTexture::addImageTexture(texture, filename);
#endif
// cache the texture
_textures->setObject(texture, filename);
texture->autorelease();
if (target && selector)
{
(target->*selector)(texture);
target->release();
}
pImage->release();
delete pAsyncStruct;
delete pImageInfo;
--_asyncRefCount;
if (0 == _asyncRefCount)
{
Director::getInstance()->getScheduler()->unscheduleSelector(schedule_selector(TextureCache::addImageAsyncCallBack), this);
}
}
}
Texture2D * TextureCache::addImage(const char * path)
{
CCASSERT(path != NULL, "TextureCache: fileimage MUST not be NULL");
Texture2D * texture = NULL;
Image* pImage = NULL;
// Split up directory and filename
// MUTEX:
// Needed since addImageAsync calls this method from a different thread
std::string pathKey = path;
pathKey = FileUtils::getInstance()->fullPathForFilename(pathKey.c_str());
if (pathKey.size() == 0)
{
return NULL;
}
texture = static_cast<Texture2D*>(_textures->objectForKey(pathKey.c_str()));
std::string fullpath = pathKey;
if (! texture)
{
std::string lowerCase(pathKey);
for (unsigned int i = 0; i < lowerCase.length(); ++i)
{
lowerCase[i] = tolower(lowerCase[i]);
}
// all images are handled by UIImage except PVR extension that is handled by our own handler
do
{
pImage = new Image();
CC_BREAK_IF(NULL == pImage);
bool bRet = pImage->initWithImageFile(fullpath.c_str());
CC_BREAK_IF(!bRet);
texture = new Texture2D();
if( texture &&
texture->initWithImage(pImage) )
{
#if CC_ENABLE_CACHE_TEXTURE_DATA
// cache the texture file name
VolatileTexture::addImageTexture(texture, fullpath.c_str());
#endif
_textures->setObject(texture, pathKey.c_str());
texture->release();
}
else
{
CCLOG("cocos2d: Couldn't create texture for file:%s in TextureCache", path);
}
} while (0);
}
CC_SAFE_RELEASE(pImage);
return texture;
}
Texture2D* TextureCache::addUIImage(Image *image, const char *key)
{
CCASSERT(image != NULL, "TextureCache: image MUST not be nil");
Texture2D * texture = NULL;
// textureForKey() use full path,so the key should be full path
std::string forKey;
if (key)
{
forKey = FileUtils::getInstance()->fullPathForFilename(key);
}
// Don't have to lock here, because addImageAsync() will not
// invoke opengl function in loading thread.
do
{
// If key is nil, then create a new texture each time
if(key && (texture = (Texture2D *)_textures->objectForKey(forKey.c_str())))
{
break;
}
// prevents overloading the autorelease pool
texture = new Texture2D();
texture->initWithImage(image);
if(key && texture)
{
_textures->setObject(texture, forKey.c_str());
texture->autorelease();
}
else
{
CCLOG("cocos2d: Couldn't add UIImage in TextureCache");
}
} while (0);
#if CC_ENABLE_CACHE_TEXTURE_DATA
VolatileTexture::addImage(texture, image);
#endif
return texture;
}
// TextureCache - Remove
void TextureCache::removeAllTextures()
{
_textures->removeAllObjects();
}
void TextureCache::removeUnusedTextures()
{
/*
DictElement* pElement = NULL;
CCDICT_FOREACH(_textures, pElement)
{
CCLOG("cocos2d: TextureCache: texture: %s", pElement->getStrKey());
Texture2D *value = static_cast<Texture2D*>(pElement->getObject());
if (value->retainCount() == 1)
{
CCLOG("cocos2d: TextureCache: removing unused texture: %s", pElement->getStrKey());
_textures->removeObjectForElememt(pElement);
}
}
*/
/** Inter engineer zhuoshi sun finds that this way will get better performance
*/
if (_textures->count())
{
// find elements to be removed
DictElement* pElement = NULL;
list<DictElement*> elementToRemove;
CCDICT_FOREACH(_textures, pElement)
{
CCLOG("cocos2d: TextureCache: texture: %s", pElement->getStrKey());
Texture2D *value = static_cast<Texture2D*>(pElement->getObject());
if (value->retainCount() == 1)
{
elementToRemove.push_back(pElement);
}
}
// remove elements
for (auto iter = elementToRemove.begin(); iter != elementToRemove.end(); ++iter)
{
CCLOG("cocos2d: TextureCache: removing unused texture: %s", (*iter)->getStrKey());
_textures->removeObjectForElememt(*iter);
}
}
}
void TextureCache::removeTexture(Texture2D* texture)
{
if( ! texture )
{
return;
}
Array* keys = _textures->allKeysForObject(texture);
_textures->removeObjectsForKeys(keys);
}
void TextureCache::removeTextureForKey(const char *textureKeyName)
{
if (textureKeyName == NULL)
{
return;
}
string fullPath = FileUtils::getInstance()->fullPathForFilename(textureKeyName);
_textures->removeObjectForKey(fullPath);
}
Texture2D* TextureCache::textureForKey(const char* key)
{
return static_cast<Texture2D*>(_textures->objectForKey(FileUtils::getInstance()->fullPathForFilename(key)));
}
void TextureCache::reloadAllTextures()
{
#if CC_ENABLE_CACHE_TEXTURE_DATA
VolatileTexture::reloadAllTextures();
#endif
}
void TextureCache::dumpCachedTextureInfo()
{
unsigned int count = 0;
unsigned int totalBytes = 0;
DictElement* pElement = NULL;
CCDICT_FOREACH(_textures, pElement)
{
Texture2D* tex = static_cast<Texture2D*>(pElement->getObject());
unsigned int bpp = tex->getBitsPerPixelForFormat();
// Each texture takes up width * height * bytesPerPixel bytes.
unsigned int bytes = tex->getPixelsWide() * tex->getPixelsHigh() * bpp / 8;
totalBytes += bytes;
count++;
CCLOG("cocos2d: \"%s\" rc=%lu id=%lu %lu x %lu @ %ld bpp => %lu KB",
pElement->getStrKey(),
(long)tex->retainCount(),
(long)tex->getName(),
(long)tex->getPixelsWide(),
(long)tex->getPixelsHigh(),
(long)bpp,
(long)bytes / 1024);
}
CCLOG("cocos2d: TextureCache dumpDebugInfo: %ld textures, for %lu KB (%.2f MB)", (long)count, (long)totalBytes / 1024, totalBytes / (1024.0f*1024.0f));
}
#if CC_ENABLE_CACHE_TEXTURE_DATA
std::list<VolatileTexture*> VolatileTexture::_textures;
bool VolatileTexture::_isReloading = false;
VolatileTexture::VolatileTexture(Texture2D *t)
: _texture(t)
, _cashedImageType(kInvalid)
, _textureData(NULL)
, _pixelFormat(Texture2D::PixelFormat::RGBA8888)
, _fileName("")
, _text("")
, _uiImage(NULL)
{
_texParams.minFilter = GL_LINEAR;
_texParams.magFilter = GL_LINEAR;
_texParams.wrapS = GL_CLAMP_TO_EDGE;
_texParams.wrapT = GL_CLAMP_TO_EDGE;
_textures.push_back(this);
}
VolatileTexture::~VolatileTexture()
{
_textures.remove(this);
CC_SAFE_RELEASE(_uiImage);
}
void VolatileTexture::addImageTexture(Texture2D *tt, const char* imageFileName)
{
if (_isReloading)
{
return;
}
VolatileTexture *vt = findVolotileTexture(tt);
vt->_cashedImageType = kImageFile;
vt->_fileName = imageFileName;
vt->_pixelFormat = tt->getPixelFormat();
}
void VolatileTexture::addImage(Texture2D *tt, Image *image)
{
VolatileTexture *vt = findVolotileTexture(tt);
image->retain();
vt->_uiImage = image;
vt->_cashedImageType = kImage;
}
VolatileTexture* VolatileTexture::findVolotileTexture(Texture2D *tt)
{
VolatileTexture *vt = 0;
auto i = _textures.begin();
while (i != _textures.end())
{
VolatileTexture *v = *i++;
if (v->_texture == tt)
{
vt = v;
break;
}
}
if (! vt)
{
vt = new VolatileTexture(tt);
}
return vt;
}
void VolatileTexture::addDataTexture(Texture2D *tt, void* data, int dataLen, Texture2D::PixelFormat pixelFormat, const Size& contentSize)
{
if (_isReloading)
{
return;
}
VolatileTexture *vt = findVolotileTexture(tt);
vt->_cashedImageType = kImageData;
vt->_textureData = data;
vt->_dataLen = dataLen;
vt->_pixelFormat = pixelFormat;
vt->_textureSize = contentSize;
}
void VolatileTexture::addStringTexture(Texture2D *tt, const char* text, const FontDefinition& fontDefinition)
{
if (_isReloading)
{
return;
}
VolatileTexture *vt = findVolotileTexture(tt);
vt->_cashedImageType = kString;
vt->_text = text;
vt->_fontDefinition = fontDefinition;
}
void VolatileTexture::setTexParameters(Texture2D *t, const Texture2D::TexParams &texParams)
{
VolatileTexture *vt = findVolotileTexture(t);
if (texParams.minFilter != GL_NONE)
vt->_texParams.minFilter = texParams.minFilter;
if (texParams.magFilter != GL_NONE)
vt->_texParams.magFilter = texParams.magFilter;
if (texParams.wrapS != GL_NONE)
vt->_texParams.wrapS = texParams.wrapS;
if (texParams.wrapT != GL_NONE)
vt->_texParams.wrapT = texParams.wrapT;
}
void VolatileTexture::removeTexture(Texture2D *t)
{
auto i = _textures.begin();
while (i != _textures.end())
{
VolatileTexture *vt = *i++;
if (vt->_texture == t)
{
delete vt;
break;
}
}
}
void VolatileTexture::reloadAllTextures()
{
_isReloading = true;
CCLOG("reload all texture");
auto iter = _textures.begin();
while (iter != _textures.end())
{
VolatileTexture *vt = *iter++;
switch (vt->_cashedImageType)
{
case kImageFile:
{
Image* pImage = new Image();
unsigned long nSize = 0;
unsigned char* pBuffer = FileUtils::getInstance()->getFileData(vt->_fileName.c_str(), "rb", &nSize);
if (pImage && pImage->initWithImageData((void*)pBuffer, nSize))
{
Texture2D::PixelFormat oldPixelFormat = Texture2D::getDefaultAlphaPixelFormat();
Texture2D::setDefaultAlphaPixelFormat(vt->_pixelFormat);
vt->_texture->initWithImage(pImage);
Texture2D::setDefaultAlphaPixelFormat(oldPixelFormat);
}
CC_SAFE_DELETE_ARRAY(pBuffer);
CC_SAFE_RELEASE(pImage);
}
break;
case kImageData:
{
vt->_texture->initWithData(vt->_textureData,
vt->_dataLen,
vt->_pixelFormat,
vt->_textureSize.width,
vt->_textureSize.height,
vt->_textureSize);
}
break;
case kString:
{
vt->_texture->initWithString(vt->_text.c_str(), vt->_fontDefinition);
}
break;
case kImage:
{
vt->_texture->initWithImage(vt->_uiImage);
}
break;
default:
break;
}
vt->_texture->setTexParameters(vt->_texParams);
}
_isReloading = false;
}
#endif // CC_ENABLE_CACHE_TEXTURE_DATA
NS_CC_END
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