FileRenderDebug(const char *fileName,bool readAccess,bool echoLocally)
{
mLastDisplayType = PxProcessRenderDebug::DT_LAST;
mData = NULL;
mPrimitives = NULL;
mPrimitiveCount = 0;
mCurrentFrame = 0;
mFrameItemCount = 0;
mFrameStart = 0;
mFrameCount = 0;
mReadAccess = readAccess;
mEchoLocally = NULL;
if ( echoLocally )
{
mEchoLocally = createProcessRenderDebug();
}
mFileBuffer = PX_NEW(PxFileBuffer)(fileName, readAccess ? PxFileBuf::OPEN_READ_ONLY : PxFileBuf::OPEN_WRITE_ONLY);
if ( mFileBuffer->isOpen() )
{
if ( mReadAccess )
{
char temp[4];
PxU32 r = mFileBuffer->read(temp,4);
PxU32 version = mFileBuffer->readDword();
if ( r == 4 && magic[0] == temp[0] && magic[1] == temp[1] && magic[2] == temp[2] && magic[3] == temp[3] && version == MAGIC_VERSION )
{
// it's valid!
FrameHeader h;
while ( readFrameHeader(h,*mFileBuffer ) )
{
mFrameHeaders.pushBack(h);
}
mFrameCount = mFrameHeaders.size();
}
else
{
delete mFileBuffer;
mFileBuffer = NULL;
}
}
else
{
mFileBuffer->write(magic, 4 );
mFileBuffer->storeDword(MAGIC_VERSION);
mFileBuffer->flush();
}
}
else
{
delete mFileBuffer;
mFileBuffer = NULL;
}
}
// E.2.2 Control procedure for decoding a frame
void Decode_frame(SetjmpStreamState *in_out_pSetjmpStreamState,
ByteStreamInterface in_setjmpStreamReadInterface,
uint8_t currentMarker, JpegContext *in_pJpegContext)
{
readFrameHeader(in_out_pSetjmpStreamState, in_setjmpStreamReadInterface,
&in_pJpegContext->frameHeader, currentMarker);
currentMarker = readMarker(in_out_pSetjmpStreamState, in_setjmpStreamReadInterface);
while (currentMarker != SOS_MARKER)
{
interpreteMarkersFromTableE1(in_out_pSetjmpStreamState,
in_setjmpStreamReadInterface, currentMarker,
in_pJpegContext);
currentMarker = readMarker(in_out_pSetjmpStreamState, in_setjmpStreamReadInterface);
}
Decode_scan(in_out_pSetjmpStreamState, in_setjmpStreamReadInterface, in_pJpegContext);
// TODO: further markers can occur before EOI
}
