tahoma2d/toonz/sources/common/flash/FObj.cpp

// Copyright © 1999 Middlesoft, Inc. All rights reserved.
// First Created By Lee Thomason.
// First Created On 09/08/1999.
// Last Modified On 11/09/1999.

/****************************************************************************************

				File Summary: FObj.cpp

  This source file contains the definition for all low-level FObj-related functions,
  grouped by classes:

		Class						Member Function
  
	FObj							U32 IsShowFrame();

	FObjCollection					FObjCollection();
									~FObjCollection();
									void AddFObj(FObj*);
									void WriteToSWFStream(FSWFStream*);
									void CreateMovie(char*, SCOORD, SCOORD, U32);
									void WriteFileHeader(U32, SCOORD, SCOORD, U32, FILE*);
									void WriteEndTag(FSWFStream*);
									U16 Increment();

	FFragment						FFragment(void*, int);
									void WriteToSWFStream(FSWFStream*);

****************************************************************************************/

#ifdef WIN32
#pragma warning(disable : 4786)
#endif

#include "FPrimitive.h"
#include "FObj.h"
#include "FSWFStream.h"

//#include "tfilepath_io.h"

//////////////////////////////////////////////////////////////////////////////////////
//  --------  FObj  ------------------------------------------------------------------

//////////////////////////////////////////////////////////////////////////////////////
//  --------  FObjCollection  --------------------------------------------------------

//	When constructor is called, the empty FObjList is automatically created.
FObjCollection::FObjCollection(void)
{

	numOfFrames = 0;
}

//	Removes and deletes every element in the list.

FObjCollection::~FObjCollection(void)
{

	while (!FObjList.empty()) {

		delete FObjList.front();
		FObjList.pop_front();
	}
}

//	The given FObj is added to the end of FObjList

void FObjCollection::AddFObj(FObj *fobj)
{

	if (fobj->IsShowFrame()) //increment numFrames then store the tag
		numOfFrames++;

	FObjList.push_back(fobj);
}

void FObjCollection::EraseFObj(int tagindex)
{

	std::list<FObj *>::iterator it = FObjList.begin();
	std::advance(it, tagindex);
	FObjList.erase(it);
}

void FObjCollection::InsertFObj(int beforeTag, FObj *fobj)
{

	if (fobj->IsShowFrame()) //increment numFrames then store the tag
		numOfFrames++;

	std::list<FObj *>::iterator it = FObjList.begin();
	std::advance(it, beforeTag);
	FObjList.insert(it, fobj);
}

int FObjCollection::GetFObjCount() const
{
	return FObjList.size();
}

FObj *FObjCollection::GetFObj(int i) const
{
	if (i >= (int)FObjList.size())
		return 0;
	std::list<FObj *>::const_iterator it = FObjList.begin();
	std::advance(it, i);

	return *it;
}

//	Uses a cursor to loop through the entire list and write all of the
//  list's FObjs to the given SWFStream

void FObjCollection::WriteToSWFStream(FSWFStream *_SWFStream)
{

	std::list<FObj *>::iterator cursor;

	for (cursor = FObjList.begin(); cursor != FObjList.end(); cursor++) {

		(*cursor)->WriteToSWFStream(_SWFStream);
	}
}

void FObjCollection::CreateMovie(FILE *fp, FRect cameraBox, U32 _frameRate, U8 _version)
{
	//FILE* fp = fopen( fileName, "wb" );
	if (fp) {
		FSWFStream stream;

		CreateMovie(&stream, cameraBox, _frameRate, _version);
		stream.WriteToFile(fp);
	}
}

void FObjCollection::CreateCompressedMovie(FILE *fp, FRect cameraBox, U32 _frameRate)
{
	//FILE* fp = fopen( fileName, "wb" );
	if (fp) {
		FSWFStream stream;

		CreateMovie(&stream, cameraBox, _frameRate);
		stream.WriteToFileVersion6(fp);
	}
}

// creates a Flash Movie
void FObjCollection::CreateMovie(FSWFStream *swfStream, FRect cameraBox, U32 _frameRate, U8 _version)
{
	// Carve out space for the header -- always 21 bytes
	for (int i = 0; i < HEADER_SIZE; i++)
		swfStream->WriteByte(0);

	// This FObjCollection is dumped into swfFileBody
	WriteToSWFStream(swfStream);

	//swfFileBody Terminated with a FCTEnd tag
	WriteEndTag(swfStream);

	// write file header into file
	WriteFileHeader(swfStream->Memory(), swfStream->Size(), cameraBox, _frameRate, _version);

	characterID = 0;
}

// creates a Flash Movie
void FObjCollection::CreateSprite(FSWFStream *swfStream, FRect cameraBox, U32 /*_frameRate*/)
{
	// Sprites do not have headers.

	// This FObjCollection is dumped into swfFileBody
	WriteToSWFStream(swfStream);

	//swfFileBody Terminated with a FCTEnd tag
	WriteEndTag(swfStream);

	characterID = 0;
}

// This works differently than the other calls, because it hacks the header information back
// into the beginning of an existing SWF stream.
void FObjCollection::WriteFileHeader(U8 *target,
									 U32 _fileLengthNoHeader,
									 FRect cameraBox,
									 U32 _frameRate,
									 U8 _version)
{
	FSWFStream header;

	header.WriteByte('F');
	header.WriteByte('W');
	header.WriteByte('S');
	header.WriteByte(_version);

	header.WriteDWord(_fileLengthNoHeader);

	// Write the movie dimensions "by hand" so they will have the correct bit size to fill the 21 bytes header
	int nBits = 16;
	header.WriteBits(nBits, 5);

	header.WriteBits((U32)cameraBox.Xmin(), nBits);
	header.WriteBits((U32)cameraBox.Xmax(), nBits);
	header.WriteBits((U32)cameraBox.Ymin(), nBits);
	header.WriteBits((U32)cameraBox.Ymax(), nBits);

	header.FlushBits();

	// The frame rate is 8.8 - we currently support 8.0
	header.WriteByte(0);
	header.WriteByte(_frameRate);

	header.WriteWord(numOfFrames);

	// Copy this buffer to the target
	memcpy(target, header.Memory(), HEADER_SIZE);
}

void FObjCollection::WriteEndTag(FSWFStream *_SWFStream)
{

	_SWFStream->AppendTag(stagEnd, 0, 0);
}

// stores the number of flash objects created
U16 FObjCollection::characterID = 0;

// increments the number of flash objects created
U16 FObjCollection::Increment(void)
{
	assert(characterID != 0xffff);
	return ++characterID;
}

//////////////////////////////////////////////////////////////////////////////////////
//  --------  FFragment  -------------------------------------------------------------

FFragment::FFragment(const void *_data, int _size)
{
	data = _data;
	size = _size;
}

void FFragment::WriteToSWFStream(FSWFStream *_SWFStream)
{
	_SWFStream->WriteLargeData((U8 *)data, size);
}