DOOM-3-BFG

SWF_Sprites.cpp (7703B)

---

 /*
 ===========================================================================
 
 Doom 3 BFG Edition GPL Source Code
 Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company. 
 
 This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").  
 
 Doom 3 BFG Edition Source Code is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.
 
 Doom 3 BFG Edition Source Code 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 General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with Doom 3 BFG Edition Source Code.  If not, see <http://www.gnu.org/licenses/>.
 
 In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code.  If not, please request a copy in writing from id Software at the address below.
 
 If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
 
 ===========================================================================
 */
 #pragma hdrstop
 #include "../idlib/precompiled.h"
 
 /*
 ========================
 idSWFSprite::idSWFSprite
 ========================
 */
 idSWFSprite::idSWFSprite( idSWF * _swf ) :
 frameCount( 0 ),
 swf( _swf ),
 commandBuffer( NULL )
 {
 }
 
 /*
 ========================
 idSWFSprite::~idSWFSprite
 ========================
 */
 idSWFSprite::~idSWFSprite() {
 	Mem_Free( commandBuffer );
 }
 
 /*
 ========================
 idSWF::DefineSprite
 ========================
 */
 void idSWF::DefineSprite( idSWFBitStream & bitstream ) {
 	uint16 characterID = bitstream.ReadU16();
 	idSWFDictionaryEntry * entry = AddDictionaryEntry( characterID, SWF_DICT_SPRITE );
 	if ( entry == NULL ) {
 		return;
 	}
 	entry->sprite->Load( bitstream, false );
 }
 
 /*
 ========================
 idSWFSprite::Load
 ========================
 */
 void idSWFSprite::Load( idSWFBitStream & bitstream, bool parseDictionary ) {
 
 	frameCount = bitstream.ReadU16();
 
 	// run through the file once, building the dictionary and accumulating control tags
 	frameOffsets.SetNum( frameCount + 1 );
 	frameOffsets[0] = 0;
 
 	unsigned int currentFrame = 1;
 
 	while ( true ) {
 		uint16 codeAndLength = bitstream.ReadU16();
 		uint32 recordLength = ( codeAndLength & 0x3F );
 		if ( recordLength == 0x3F ) {
 			recordLength = bitstream.ReadU32();
 		}
 
 		idSWFBitStream tagStream( bitstream.ReadData( recordLength ), recordLength, false );
 
 		swfTag_t tag = (swfTag_t)( codeAndLength >> 6 );
 
 		// ----------------------
 		// Definition tags
 		// definition tags are only allowed in the main sprite
 		// ----------------------
 		if ( parseDictionary ) {
 			bool handled = true;
 			switch ( tag ) {
 #define HANDLE_SWF_TAG( x ) case Tag_##x: swf->x( tagStream ); break;
 			HANDLE_SWF_TAG( JPEGTables );
 			HANDLE_SWF_TAG( DefineBits );
 			HANDLE_SWF_TAG( DefineBitsJPEG2 );
 			HANDLE_SWF_TAG( DefineBitsJPEG3 );
 			HANDLE_SWF_TAG( DefineBitsLossless );
 			HANDLE_SWF_TAG( DefineBitsLossless2 );
 			HANDLE_SWF_TAG( DefineShape );
 			HANDLE_SWF_TAG( DefineShape2 );
 			HANDLE_SWF_TAG( DefineShape3 );
 			HANDLE_SWF_TAG( DefineShape4 );
 			HANDLE_SWF_TAG( DefineSprite );
 			HANDLE_SWF_TAG( DefineSound );
 			//HANDLE_SWF_TAG( DefineMorphShape ); // these don't work right
 			HANDLE_SWF_TAG( DefineFont2 );
 			HANDLE_SWF_TAG( DefineFont3 );
 			HANDLE_SWF_TAG( DefineText );
 			HANDLE_SWF_TAG( DefineText2 );
 			HANDLE_SWF_TAG( DefineEditText );
 #undef HANDLE_SWF_TAG
 			default: handled = false;
 			}
 			if ( handled ) {
 				continue;
 			}
 		}
 		// ----------------------
 		// Control tags
 		// control tags are stored off in the commands list and processed at run time
 		// except for a couple really special control tags like "End" and "FrameLabel"
 		// ----------------------
 		switch ( tag ) {
 		case Tag_End:
 			return;
 
 		case Tag_ShowFrame:
 			frameOffsets[ currentFrame ] = commands.Num();
 			currentFrame++;
 			break;
 
 		case Tag_FrameLabel: {
 				swfFrameLabel_t & label = frameLabels.Alloc();
 				label.frameNum = currentFrame;
 				label.frameLabel = tagStream.ReadString();
 			}
 			break;
 
 		case Tag_DoInitAction: {
 			tagStream.ReadU16();
 
 			idSWFBitStream &initaction = doInitActions.Alloc();
 			initaction.Load( tagStream.ReadData( recordLength - 2 ), recordLength - 2, true );
  		    }
 			break;
 
 		case Tag_DoAction:
 		case Tag_PlaceObject2:
 		case Tag_PlaceObject3:
 		case Tag_RemoveObject2: {
 				swfSpriteCommand_t & command = commands.Alloc();
 				command.tag = tag;
 				command.stream.Load( tagStream.ReadData( recordLength ), recordLength, true );
 			}
 			break;
 
 		default:
 			// We don't care, about sprite tags we don't support ... RobA
 			//idLib::Printf( "Load Sprite: Unhandled tag %s\n", idSWF::GetTagName( tag ) );
 			break;
 		}
 	}
 }
 
 /*
 ========================
 idSWFSprite::Read
 ========================
 */
 void idSWFSprite::Read( idFile * f ) {
 	int num = 0;
 	f->ReadBig( frameCount );
 	f->ReadBig( num ); frameOffsets.SetNum( num );
 	f->ReadBigArray( frameOffsets.Ptr(), frameOffsets.Num() );
 	f->ReadBig( num ); frameLabels.SetNum( num );
 	for ( int i = 0; i < frameLabels.Num(); i++ ) {
 		f->ReadBig( frameLabels[i].frameNum );
 		f->ReadString( frameLabels[i].frameLabel );
 	}
 
 	uint32 bufferSize;
 	f->ReadBig( bufferSize );
 
 	commandBuffer = (byte *)Mem_Alloc( bufferSize, TAG_SWF );
 	f->Read( commandBuffer, bufferSize );
 
 	byte * currentBuffer = commandBuffer;
 
 	f->ReadBig( num ); commands.SetNum( num );
 	for ( int i = 0; i < commands.Num(); i++ ) {
 		uint32 streamLength = 0;
 
 		f->ReadBig( commands[i].tag );
 		f->ReadBig( streamLength );
 
 		commands[i].stream.Load( currentBuffer, streamLength, false );
 		currentBuffer += streamLength;
 	}
 
 	uint32 doInitActionLength = 0;
 	f->ReadBig( num );
 	doInitActions.SetNum( num );
 	for ( int i = 0; i < num; i++ ) {
 		f->ReadBig( doInitActionLength );
 		idSWFBitStream &initaction = doInitActions[i];
 		initaction.Load( currentBuffer, doInitActionLength, true );
 		currentBuffer += doInitActionLength;
 	}
 }
 
 /*
 ========================
 idSWFSprite::Write
 ========================
 */
 void idSWFSprite::Write( idFile * f ) {
 	f->WriteBig( frameCount );
 	f->WriteBig( frameOffsets.Num() );
 	f->WriteBigArray( frameOffsets.Ptr(), frameOffsets.Num() );
 	f->WriteBig( frameLabels.Num() );
 	for ( int i = 0; i < frameLabels.Num(); i++ ) {
 		f->WriteBig( frameLabels[i].frameNum );
 		f->WriteString( frameLabels[i].frameLabel );
 	}
 	uint32 totalLength = 0;
 	for ( int i = 0; i < commands.Num(); i++ ) {
 		totalLength += commands[i].stream.Length();
 	}
 	for (int i = 0; i < doInitActions.Num(); i++ ) {
 		totalLength += doInitActions[i].Length();
 	}
 	f->WriteBig( totalLength );
 	for ( int i = 0; i < commands.Num(); i++ ) {
 		f->Write( commands[i].stream.Ptr(), commands[i].stream.Length() );
 	}
 	for ( int i = 0; i < doInitActions.Num(); i++ ){
 		f->Write( doInitActions[i].Ptr(), doInitActions[i].Length() );
 	}
 
 	f->WriteBig( commands.Num() ); 
 	for ( int i = 0; i < commands.Num(); i++ ) {
 		f->WriteBig( commands[i].tag );
 		f->WriteBig( commands[i].stream.Length() );
 	}
 
 	f->WriteBig( doInitActions.Num() );
 	for ( int i = 0; i < doInitActions.Num(); i++ ){
 		f->WriteBig( doInitActions[i].Length() ); 
 	}
 }