/
swf.cpp
1391 lines (1246 loc) · 31.5 KB
/
swf.cpp
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/**************************************************************************
Lightspark, a free flash player implementation
Copyright (C) 2009,2010 Alessandro Pignotti (a.pignotti@sssup.it)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
**************************************************************************/
#include <string>
#include <pthread.h>
#include <algorithm>
#include "scripting/abc.h"
#include "scripting/flashdisplay.h"
#include "scripting/flashevents.h"
#include "scripting/flashutils.h"
#include "swf.h"
#include "logger.h"
#include "parsing/streams.h"
#include "asobject.h"
#include "scripting/class.h"
#include "backends/rendering.h"
#include "SDL.h"
#include <GL/glew.h>
#ifdef ENABLE_CURL
#include <curl/curl.h>
#endif
#include "compat.h"
#ifdef ENABLE_LIBAVCODEC
extern "C" {
#include <libavcodec/avcodec.h>
}
#endif
#ifdef COMPILE_PLUGIN
#include <gdk/gdkx.h>
#endif
using namespace std;
using namespace lightspark;
extern TLSDATA ParseThread* pt;
RootMovieClip::RootMovieClip(LoaderInfo* li, bool isSys):mutex("mutexRoot"),initialized(false),parsingIsFailed(false),frameRate(0),
mutexFrames("mutexFrame"),toBind(false),mutexChildrenClips("mutexChildrenClips")
{
root=this;
sem_init(&new_frame,0,0);
loaderInfo=li;
//Reset framesLoaded, as there are still not available
framesLoaded=0;
//We set the protoype to a generic MovieClip
if(!isSys)
setPrototype(Class<MovieClip>::getClass());
}
RootMovieClip::~RootMovieClip()
{
sem_destroy(&new_frame);
}
void RootMovieClip::parsingFailed()
{
//The parsing is failed, we have no change to be ever valid
parsingIsFailed=true;
sem_post(&new_frame);
}
void RootMovieClip::bindToName(const tiny_string& n)
{
assert_and_throw(toBind==false);
toBind=true;
bindName=n;
}
void RootMovieClip::setOrigin(const tiny_string& u, const tiny_string& filename)
{
//We can use this origin to implement security measures.
//It also allows loading files without specifying a fully qualified path.
//Note that for plugins, this url is NOT the page url, but it is the swf file url.
origin = URLInfo(u);
//If this URL doesn't contain a filename, add the one passed as an argument (used in main.cpp)
if(origin.getPathFile() == "" && filename != "")
origin = origin.goToURL(filename);
if(loaderInfo)
{
loaderInfo->url=origin.getParsedURL();
loaderInfo->loaderURL=origin.getParsedURL();
}
}
void RootMovieClip::registerChildClip(MovieClip* clip)
{
Locker l(mutexChildrenClips);
clip->incRef();
childrenClips.insert(clip);
}
void RootMovieClip::unregisterChildClip(MovieClip* clip)
{
Locker l(mutexChildrenClips);
if(childrenClips.erase(clip))
clip->decRef();
}
void SystemState::registerEnterFrameListener(DisplayObject* obj)
{
Locker l(mutexEnterFrameListeners);
obj->incRef();
enterFrameListeners.insert(obj);
}
void SystemState::unregisterEnterFrameListener(DisplayObject* obj)
{
Locker l(mutexEnterFrameListeners);
if(enterFrameListeners.erase(obj))
obj->decRef();
}
void RootMovieClip::setOnStage(bool staged)
{
Locker l(mutexFrames);
MovieClip::setOnStage(staged);
}
RootMovieClip* RootMovieClip::getInstance(LoaderInfo* li)
{
RootMovieClip* ret=new RootMovieClip(li);
ret->setPrototype(Class<MovieClip>::getClass());
return ret;
}
void SystemState::staticInit()
{
//Do needed global initialization
#ifdef ENABLE_CURL
curl_global_init(CURL_GLOBAL_ALL);
#endif
#ifdef ENABLE_LIBAVCODEC
avcodec_register_all();
#endif
// seed the random number generator
srand(time(NULL));
}
void SystemState::staticDeinit()
{
#ifdef ENABLE_CURL
curl_global_cleanup();
#endif
}
SystemState::SystemState(ParseThread* parseThread, uint32_t fileSize):
RootMovieClip(NULL,true),renderRate(0),error(false),shutdown(false),
renderThread(NULL),inputThread(NULL),engine(NONE),fileDumpAvailable(0),
waitingForDump(false),vmVersion(VMNONE),childPid(0),useGnashFallback(false),
mutexEnterFrameListeners("mutexEnterFrameListeners"),invalidateQueueHead(NULL),
invalidateQueueTail(NULL),showProfilingData(false),showDebug(false),currentVm(NULL),
finalizingDestruction(false),useInterpreter(true),useJit(false),downloadManager(NULL),
extScriptObject(NULL),scaleMode(SHOW_ALL)
{
cookiesFileName[0]=0;
//Create the thread pool
sys=this;
sem_init(&terminated,0,0);
//Get starting time
if(parseThread) //ParseThread may be null in tightspark
parseThread->root=this;
threadPool=new ThreadPool(this);
timerThread=new TimerThread(this);
config=new Config;
config->load();
pluginManager = new PluginManager;
audioManager=new AudioManager(pluginManager);
intervalManager=new IntervalManager();
securityManager=new SecurityManager();
loaderInfo=Class<LoaderInfo>::getInstanceS();
//If the size is not known those will stay at zero
loaderInfo->setBytesLoaded(fileSize);
loaderInfo->setBytesTotal(fileSize);
stage=Class<Stage>::getInstanceS();
setParent(stage);
startTime=compat_msectiming();
setPrototype(Class<MovieClip>::getClass());
renderThread=new RenderThread(this);
inputThread=new InputThread(this);
}
void SystemState::setDownloadedPath(const tiny_string& p)
{
dumpedSWFPath=p;
Locker l(mutex);
if(waitingForDump)
fileDumpAvailable.signal();
}
void SystemState::setCookies(const char* c)
{
rawCookies=c;
}
void SystemState::parseParametersFromFlashvars(const char* v)
{
if(useGnashFallback) //Save a copy of the string
rawParameters=v;
ASObject* params=Class<ASObject>::getInstanceS();
//Add arguments to SystemState
string vars(v);
uint32_t cur=0;
while(cur<vars.size())
{
int n1=vars.find('=',cur);
if(n1==-1) //Incomplete parameters string, ignore the last
break;
int n2=vars.find('&',n1+1);
if(n2==-1)
n2=vars.size();
string varName=vars.substr(cur,(n1-cur));
//The variable value has to be urldecoded
bool ok=true;
string varValue;
varValue.reserve(n2-n1); //The maximum lenght
for(int j=n1+1;j<n2;j++)
{
if(vars[j]!='%')
varValue.push_back(vars[j]);
else
{
if((n2-j)<3) //Not enough characters
{
ok=false;
break;
}
int t1=Math::hexToInt(vars[j+1]);
int t2=Math::hexToInt(vars[j+2]);
if(t1==-1 || t2==-1)
{
ok=false;
break;
}
int c=(t1*16)+t2;
varValue.push_back(c);
j+=2;
}
}
if(ok)
{
//cout << varName << ' ' << varValue << endl;
params->setVariableByQName(varName.c_str(),"",
lightspark::Class<lightspark::ASString>::getInstanceS(varValue));
}
cur=n2+1;
}
setParameters(params);
}
void SystemState::parseParametersFromFile(const char* f)
{
ifstream i(f);
if(!i)
{
LOG(LOG_ERROR,_("Parameters file not found"));
return;
}
ASObject* ret=Class<ASObject>::getInstanceS();
while(!i.eof())
{
string name,value;
getline(i,name);
getline(i,value);
ret->setVariableByQName(name,"",Class<ASString>::getInstanceS(value));
}
setParameters(ret);
i.close();
}
void SystemState::setParameters(ASObject* p)
{
loaderInfo->setVariableByQName("parameters","",p);
}
void SystemState::stopEngines()
{
if(threadPool)
threadPool->forceStop();
if(timerThread)
timerThread->wait();
delete downloadManager;
downloadManager=NULL;
delete securityManager;
securityManager=NULL;
delete config;
config=NULL;
if(currentVm)
currentVm->shutdown();
delete timerThread;
timerThread=NULL;
delete threadPool;
threadPool=NULL;
//Now stop the managers
delete audioManager;
audioManager=NULL;
delete pluginManager;
pluginManager=NULL;
}
SystemState::~SystemState()
{
//Kill our child process if any
if(childPid)
{
assert(childPid!=getpid());
kill_child(childPid);
}
//Delete the temporary cookies file
if(cookiesFileName[0])
unlink(cookiesFileName);
assert(shutdown);
renderThread->stop();
//The thread pool should be stopped before everything
if(threadPool)
threadPool->forceStop();
stopEngines();
//decRef all our object before destroying classes
Variables.destroyContents();
loaderInfo->decRef();
loaderInfo=NULL;
//We are already being destroyed, make our prototype abandon us
setPrototype(NULL);
//Destroy the contents of all the classes
std::map<QName, Class_base*>::iterator it=classes.begin();
for(;it!=classes.end();++it)
it->second->cleanUp();
finalizingDestruction=true;
//Also destroy all frames
frames.clear();
//Destroy all registered classes
it=classes.begin();
for(;it!=classes.end();++it)
{
//DEPRECATED: to force garbage collection we delete all the classes
delete it->second;
//it->second->decRef()
}
//The Vm must be destroyed this late to clean all managed integers and numbers
delete currentVm;
//Also destroy all tags
for(unsigned int i=0;i<tagsStorage.size();i++)
delete tagsStorage[i];
delete renderThread;
renderThread=NULL;
delete inputThread;
inputThread=NULL;
sem_destroy(&terminated);
}
bool SystemState::isOnError() const
{
return error;
}
bool SystemState::isShuttingDown() const
{
return shutdown;
}
bool SystemState::shouldTerminate() const
{
return shutdown || error;
}
void SystemState::setError(const string& c)
{
//We record only the first error for easier fix and reporting
if(!error)
{
error=true;
errorCause=c;
timerThread->stop();
//Disable timed rendering
removeJob(renderThread);
renderThread->draw(true);
}
}
void SystemState::setShutdownFlag()
{
Locker l(mutex);
if(currentVm)
{
ShutdownEvent* e=new ShutdownEvent;
currentVm->addEvent(NULL,e);
e->decRef();
}
shutdown=true;
sem_post(&terminated);
}
void SystemState::wait()
{
sem_wait(&terminated);
if(engine==SDL)
{
SDL_Event event;
event.type = SDL_USEREVENT;
event.user.code = SHUTDOWN;
event.user.data1 = 0;
event.user.data1 = 0;
SDL_PushEvent(&event);
}
//Acquire the mutex to sure that the engines are not being started right now
Locker l(mutex);
renderThread->wait();
inputThread->wait();
if(currentVm)
currentVm->shutdown();
}
float SystemState::getRenderRate()
{
return renderRate;
}
void SystemState::startRenderTicks()
{
assert(renderThread);
assert(renderRate);
removeJob(renderThread);
addTick(1000/renderRate,renderThread);
}
void SystemState::EngineCreator::execute()
{
sys->createEngines();
}
void SystemState::EngineCreator::threadAbort()
{
sys->fileDumpAvailable.signal();
sys->getRenderThread()->forceInitialization();
}
#ifndef GNASH_PATH
#error No GNASH_PATH defined
#endif
void SystemState::enableGnashFallback()
{
//Check if the gnash standalone executable is available
ifstream f(GNASH_PATH);
if(f)
useGnashFallback=true;
f.close();
}
#ifdef COMPILE_PLUGIN
void SystemState::delayedCreation(SystemState* th)
{
NPAPI_params& p=th->npapiParams;
//Create a plug in the XEmbed window
p.container=gtk_plug_new((GdkNativeWindow)p.window);
//Realize the widget now, as we need the X window
gtk_widget_realize(p.container);
//Show it now
gtk_widget_show(p.container);
gtk_widget_map(p.container);
p.window=GDK_WINDOW_XWINDOW(p.container->window);
XSync(p.display, False);
//The lock is needed to avoid thread creation/destruction races
Locker l(th->mutex);
if(th->shutdown)
return;
th->renderThread->start(th->engine, &th->npapiParams);
th->inputThread->start(th->engine, &th->npapiParams);
//If the render rate is known start the render ticks
if(th->renderRate)
th->startRenderTicks();
}
void SystemState::delayedStopping(SystemState* th)
{
sys=th;
//This is called from the plugin, also kill the stream
th->npapiParams.stopDownloaderHelper(th->npapiParams.helperArg);
th->stopEngines();
sys=NULL;
}
#endif
void SystemState::createEngines()
{
Locker l(mutex);
if(shutdown)
{
//A shutdown request has arrived before the creation of engines
return;
}
#ifdef COMPILE_PLUGIN
//Check if we should fall back on gnash
if(useGnashFallback && engine==GTKPLUG && vmVersion!=AVM2)
{
if(dumpedSWFPath.len()==0) //The path is not known yet
{
waitingForDump=true;
l.unlock();
fileDumpAvailable.wait();
if(shutdown)
return;
l.lock();
}
LOG(LOG_NO_INFO,_("Trying to invoke gnash!"));
//Dump the cookies to a temporary file
strcpy(cookiesFileName,"/tmp/lightsparkcookiesXXXXXX");
int file=mkstemp(cookiesFileName);
if(file!=-1)
{
std::string data("Set-Cookie: " + rawCookies);
size_t res;
size_t written = 0;
// Keep writing until everything we wanted to write actually got written
do
{
res = write(file, data.c_str()+written, data.size()-written);
if(res < 0)
{
LOG(LOG_ERROR, _("Error during writing of cookie file for Gnash"));
break;
}
written += res;
} while(written < data.size());
close(file);
setenv("GNASH_COOKIES_IN", cookiesFileName, 1);
}
else
cookiesFileName[0]=0;
sigset_t oldset;
sigset_t set;
sigfillset(&set);
//Blocks all signal to avoid terminating while forking with the browser signal handlers on
pthread_sigmask(SIG_SETMASK, &set, &oldset);
// This will be used to pipe the SWF's data to Gnash's stdin
int gnashStdin[2];
pipe(gnashStdin);
childPid=fork();
if(childPid==-1)
{
//Restore handlers
pthread_sigmask(SIG_SETMASK, &oldset, NULL);
LOG(LOG_ERROR,_("Child process creation failed, lightspark continues"));
childPid=0;
}
else if(childPid==0) //Child process scope
{
// Close write end of Gnash's stdin pipe, we will only read
close(gnashStdin[1]);
// Point stdin to the read end of Gnash's stdin pipe
dup2(gnashStdin[0], fileno(stdin));
// Close the read end of the pipe
close(gnashStdin[0]);
//Allocate some buffers to store gnash arguments
char bufXid[32];
char bufWidth[32];
char bufHeight[32];
snprintf(bufXid,32,"%lu",npapiParams.window);
snprintf(bufWidth,32,"%u",npapiParams.width);
snprintf(bufHeight,32,"%u",npapiParams.height);
string params("FlashVars=");
params+=rawParameters;
char *const args[] =
{
strdup("gnash"), //argv[0]
strdup("-x"), //Xid
bufXid,
strdup("-j"), //Width
bufWidth,
strdup("-k"), //Height
bufHeight,
strdup("-u"), //SWF url
strdup(origin.getParsedURL().raw_buf()),
strdup("-P"), //SWF parameters
strdup(params.c_str()),
strdup("-vv"),
strdup("-"),
NULL
};
// Print out an informative message about how we are invoking Gnash
{
int i = 1;
std::string argsStr = "";
while(args[i] != NULL)
{
argsStr += " ";
argsStr += args[i];
i++;
}
cerr << "Invoking '" << GNASH_PATH << argsStr << " < " << dumpedSWFPath.raw_buf() << "'" << endl;
}
//Avoid calling browser signal handler during the short time between enabling signals and execve
sigaction(SIGTERM, NULL, NULL);
//Restore handlers
pthread_sigmask(SIG_SETMASK, &oldset, NULL);
execve(GNASH_PATH, args, environ);
//If we are here execve failed, print an error and die
cerr << _("Execve failed, content will not be rendered") << endl;
exit(0);
}
else //Parent process scope
{
// Pass the SWF's data to Gnash
{
// Close read end of stdin pipe, we will only write to it.
close(gnashStdin[0]);
// Open the SWF file
std::ifstream swfStream(dumpedSWFPath.raw_buf(), ios::binary);
// Read the SWF file and write it to Gnash's stdin
char data[1024];
std::streamsize written, ret;
bool stop = false;
while(!swfStream.eof() && !swfStream.fail() && !stop)
{
swfStream.read(data, 1024);
// Keep writing until everything we wanted to write actually got written
written = 0;
do
{
ret = write(gnashStdin[1], data+written, swfStream.gcount()-written);
if(ret < 0)
{
LOG(LOG_ERROR, _("Error during writing of SWF file to Gnash"));
stop = true;
break;
}
written += ret;
} while(written < swfStream.gcount());
}
// Close the write end of Gnash's stdin, signalling EOF to Gnash.
close(gnashStdin[1]);
// Close the SWF file
swfStream.close();
}
//Restore handlers
pthread_sigmask(SIG_SETMASK, &oldset, NULL);
//Engines should not be started, stop everything
l.unlock();
//We cannot stop the engines now, as this is inside a ThreadPool job
npapiParams.helper(npapiParams.helperArg, (helper_t)delayedStopping, this);
return;
}
}
#else
//COMPILE_PLUGIN not defined
if(useGnashFallback && engine==GTKPLUG && vmVersion!=AVM2)
{
throw new UnsupportedException("GNASH fallback not available when not built with COMPILE_PLUGIN");
}
#endif
if(engine==GTKPLUG) //The engines must be created in the context of the main thread
{
#ifdef COMPILE_PLUGIN
npapiParams.helper(npapiParams.helperArg, (helper_t)delayedCreation, this);
#else
throw new UnsupportedException("Plugin engine not available when not built with COMPILE_PLUGIN");
#endif
}
else //SDL engine
{
renderThread->start(engine, NULL);
inputThread->start(engine, NULL);
//If the render rate is known start the render ticks
if(renderRate)
startRenderTicks();
}
l.unlock();
renderThread->waitForInitialization();
l.lock();
//As we lost the lock the shutdown procesure might have started
if(shutdown)
return;
if(currentVm)
currentVm->start();
l.unlock();
//Now that there is something to actually render the contents add the SystemState to the stage
setOnStage(true);
}
void SystemState::needsAVM2(bool n)
{
Locker l(mutex);
assert(currentVm==NULL);
//Create the virtual machine if needed
if(n)
{
vmVersion=AVM2;
LOG(LOG_NO_INFO,_("Creating VM"));
currentVm=new ABCVm(this);
}
else
vmVersion=AVM1;
if(engine)
addJob(new EngineCreator);
}
void SystemState::setParamsAndEngine(ENGINE e, NPAPI_params* p)
{
Locker l(mutex);
if(p)
npapiParams=*p;
engine=e;
if(vmVersion)
addJob(new EngineCreator);
}
void SystemState::setRenderRate(float rate)
{
Locker l(mutex);
if(renderRate>=rate)
return;
//The requested rate is higher, let's reschedule the job
renderRate=rate;
startRenderTicks();
}
void SystemState::tick()
{
RootMovieClip::tick();
{
SpinlockLocker l(profileDataSpinlock);
list<ThreadProfile>::iterator it=profilingData.begin();
for(;it!=profilingData.end();++it)
it->tick();
}
//Send enterFrame events, if needed
{
Locker l(mutexEnterFrameListeners);
if(!enterFrameListeners.empty())
{
Event* e=Class<Event>::getInstanceS("enterFrame");
auto it=enterFrameListeners.begin();
for(;it!=enterFrameListeners.end();it++)
getVm()->addEvent(*it,e);
e->decRef();
}
}
//Enter frame should be sent to the stage too
if(stage->hasEventListener("enterFrame"))
{
Event* e=Class<Event>::getInstanceS("enterFrame");
getVm()->addEvent(stage,e);
e->decRef();
}
}
void SystemState::addJob(IThreadJob* j)
{
threadPool->addJob(j);
}
void SystemState::addTick(uint32_t tickTime, ITickJob* job)
{
timerThread->addTick(tickTime,job);
}
void SystemState::addWait(uint32_t waitTime, ITickJob* job)
{
timerThread->addWait(waitTime,job);
}
bool SystemState::removeJob(ITickJob* job)
{
return timerThread->removeJob(job);
}
ThreadProfile* SystemState::allocateProfiler(const lightspark::RGB& color)
{
SpinlockLocker l(profileDataSpinlock);
profilingData.push_back(ThreadProfile(color,100));
ThreadProfile* ret=&profilingData.back();
return ret;
}
void SystemState::addToInvalidateQueue(DisplayObject* d)
{
SpinlockLocker l(invalidateQueueLock);
//Check if the object is already in the queue
if(d->invalidateQueueNext || d==invalidateQueueTail)
return;
if(invalidateQueueHead==NULL)
invalidateQueueHead=invalidateQueueTail=d;
else
{
d->invalidateQueueNext=invalidateQueueHead;
invalidateQueueHead=d;
}
d->incRef();
}
void SystemState::flushInvalidationQueue()
{
SpinlockLocker l(invalidateQueueLock);
DisplayObject* cur=invalidateQueueHead;
while(cur)
{
cur->invalidate();
DisplayObject* next=cur->invalidateQueueNext;
cur->invalidateQueueNext=NULL;
cur->decRef();
cur=next;
}
invalidateQueueHead=NULL;
invalidateQueueTail=NULL;
}
#ifdef PROFILING_SUPPORT
void SystemState::setProfilingOutput(const tiny_string& t)
{
profOut=t;
}
const tiny_string& SystemState::getProfilingOutput() const
{
return profOut;
}
#endif
void ThreadProfile::setTag(const std::string& t)
{
Locker locker(mutex);
if(data.empty())
data.push_back(ProfilingData(tickCount,0));
data.back().tag=t;
}
void ThreadProfile::accountTime(uint32_t time)
{
Locker locker(mutex);
if(data.empty() || data.back().index!=tickCount)
data.push_back(ProfilingData(tickCount, time));
else
data.back().timing+=time;
}
void ThreadProfile::tick()
{
Locker locker(mutex);
tickCount++;
//Purge first sample if the second is already old enough
if(data.size()>2 && (tickCount-data[1].index)>uint32_t(len))
{
if(!data[0].tag.empty() && data[1].tag.empty())
data[0].tag.swap(data[1].tag);
data.pop_front();
}
}
void ThreadProfile::plot(uint32_t maxTime, FTFont* font)
{
if(data.size()<=1)
return;
Locker locker(mutex);
RECT size=sys->getFrameSize();
int width=size.Xmax/20;
int height=size.Ymax/20;
int32_t start=tickCount-len;
if(int32_t(data[0].index-start)>0)
start=data[0].index;
glPushAttrib(GL_TEXTURE_BIT | GL_LINE_BIT);
glColor3ub(color.Red,color.Green,color.Blue);
glDisable(GL_TEXTURE_2D);
glLineWidth(2);
glBegin(GL_LINE_STRIP);
for(unsigned int i=0;i<data.size();i++)
{
int32_t relx=int32_t(data[i].index-start)*width/len;
glVertex2i(relx,data[i].timing*height/maxTime);
}
glEnd();
glPopAttrib();
//Draw tags
string* curTag=NULL;
int curTagX=0;
int curTagY=maxTime;
int curTagLen=0;
int curTagH=0;
for(unsigned int i=0;i<data.size();i++)
{
int32_t relx=int32_t(data[i].index-start)*width/len;
if(!data[i].tag.empty())
{
//New tag, flush the old one if present
if(curTag)
font->Render(curTag->c_str() ,-1,FTPoint(curTagX,imax(curTagY-curTagH,0)));
//Measure tag
FTBBox tagBox=font->BBox(data[i].tag.c_str(),-1);
curTagLen=(tagBox.Upper()-tagBox.Lower()).X();
curTagH=(tagBox.Upper()-tagBox.Lower()).Y();
curTag=&data[i].tag;
curTagX=relx;
curTagY=maxTime;
}
if(curTag)
{
if(relx<(curTagX+curTagLen))
curTagY=imin(curTagY,data[i].timing*height/maxTime);
else
{
//Tag is before this sample
font->Render(curTag->c_str() ,-1,FTPoint(curTagX,imax(curTagY-curTagH,0)));
curTag=NULL;
}
}
}
}
ParseThread::ParseThread(RootMovieClip* r,istream& in):f(in),zlibFilter(NULL),backend(NULL),isEnded(false),fileType(NONE),root(NULL),
version(0),useAVM2(false)
{
root=r;
sem_init(&ended,0,0);
}
ParseThread::~ParseThread()
{
if(zlibFilter)
{
//Restore the istream
f.rdbuf(backend);
delete zlibFilter;
}
sem_destroy(&ended);
}
void ParseThread::checkType(uint8_t c1, uint8_t c2, uint8_t c3, uint8_t c4)
{
if(c1=='F' && c2=='W' && c3=='S')
{
fileType=SWF;
version=c4;
root->version=version;
}
else if(c1=='C' && c2=='W' && c3=='S')
{
fileType=COMPRESSED_SWF;
version=c4;
root->version=version;
}
else if((c1&0x80) && c2=='P' && c3=='N' && c4=='G')