source/gfx/sprbank.cpp

@@ -0,0 +1,415 @@
+/*=========================================================================
+
+	sprbank.cpp
+
+	Author:		PKG
+	Created: 
+	Project:	PRLSR
+	Purpose: 
+
+	Copyright (c) 2000 Climax Development Ltd
+
+===========================================================================*/
+
+
+/*----------------------------------------------------------------------
+	Includes
+	-------- */
+
+#ifndef __GFX_SPRBANK_H__
+#include "gfx\sprbank.h"
+#endif
+
+#ifndef _FILEIO_HEADER_
+#include "FileIO/FileIO.h"
+#endif
+
+#ifndef	__MEMORY_HEADER__
+#include "Mem\Memory.h"
+#endif
+
+#ifndef __PRIM_HEADER__
+#include "gfx\prim.h"
+#endif
+
+
+/*	Std Lib
+	------- */
+
+/*----------------------------------------------------------------------
+	Tyepdefs && Defines
+	------------------- */
+
+/*----------------------------------------------------------------------
+	Structure defintions
+	-------------------- */
+
+
+/*----------------------------------------------------------------------
+	Positional Vars
+	--------------- */
+
+/*----------------------------------------------------------------------
+	Function Prototypes
+	------------------- */
+
+/*----------------------------------------------------------------------
+	Vars
+	---- */
+
+// Linked list of loaded instances
+static SpriteBankInstance	*s_bankList = NULL;
+
+
+//#define SPRITE_BANK_DEBUG
+
+/*----------------------------------------------------------------------
+	Function:
+	Purpose:
+	Params:
+	Returns:
+  ---------------------------------------------------------------------- */
+SpriteBankInstance::SpriteBankInstance( SpriteBankInstance *_next )
+{
+#ifdef SPRITE_BANK_DEBUG
+printf("SpriteBankInstance()\n");
+#endif
+	m_frameHdr=NULL;
+	m_file=FileEquate( -1 );
+	m_refCount=0;
+	m_next=_next;
+}
+
+/*----------------------------------------------------------------------
+	Function:
+	Purpose:
+	Params:
+	Returns:
+  ---------------------------------------------------------------------- */
+SpriteBankInstance::~SpriteBankInstance()
+{
+#ifdef SPRITE_BANK_DEBUG
+printf("~SpriteBankInstance() file=%d\n",m_file);
+#endif
+	ASSERT( !m_frameHdr );
+}
+
+/*----------------------------------------------------------------------
+	Function:
+	Purpose:
+	Params:
+	Returns:
+  ---------------------------------------------------------------------- */
+int loadcount=0;
+void SpriteBankInstance::load( FileEquate _file )
+{
+#ifdef SPRITE_BANK_DEBUG
+printf("SpriteBankInstance::load() file=%d\n",_file);
+#endif
+	if( m_refCount )
+	{
+		ASSERT( _file == m_file );
+		m_refCount++;
+#ifdef SPRITE_BANK_DEBUG
+printf("  loaded reference" );
+#endif
+	}
+	else
+	{
+		m_tpageDesc=TPLoadTexWithHeaders(_file,&m_frameHdr);
+
+		m_file=_file;
+		m_refCount=1;
+#ifdef SPRITE_BANK_DEBUG
+printf("  loaded physical %d",m_file );
+#endif
+	}
+#ifdef SPRITE_BANK_DEBUG
+printf(" - refcount=%d\n",m_refCount);
+#endif
+
+loadcount++;
+}
+
+/*----------------------------------------------------------------------
+	Function:
+	Purpose:
+	Params:
+	Returns:	true if there are no more references to this bank
+  ---------------------------------------------------------------------- */
+int SpriteBankInstance::dump()
+{
+#ifdef SPRITE_BANK_DEBUG
+printf("SpriteBankInstance::dump() file=%d\n",m_file);
+#endif
+	int ret=false;
+	ASSERT(m_frameHdr);
+
+	m_refCount--;
+#ifdef SPRITE_BANK_DEBUG
+printf("  refcount now %d",m_refCount);
+#endif
+	if( m_refCount == 0 )
+	{
+#ifdef SPRITE_BANK_DEBUG
+printf(" ..freeing\n");
+#endif
+		TPFree(m_tpageDesc);
+		MemFree(m_frameHdr);
+		m_frameHdr=NULL;
+		ret=true;
+	}
+#ifdef SPRITE_BANK_DEBUG
+printf("\n");
+#endif
+loadcount--;
+	return ret;
+}
+
+
+
+
+
+/*----------------------------------------------------------------------
+	Function:
+	Purpose:
+	Params:
+	Returns:
+  ---------------------------------------------------------------------- */
+SpriteBank::SpriteBank()
+{
+	m_SpriteBankInstance = NULL;
+}
+
+/*----------------------------------------------------------------------
+	Function:
+	Purpose:
+	Params:
+	Returns:
+  ---------------------------------------------------------------------- */
+SpriteBank::~SpriteBank()
+{
+	ASSERT(!m_SpriteBankInstance);
+}
+
+/*----------------------------------------------------------------------
+	Function:
+	Purpose:
+	Params:		also creates the instance if required
+	Returns:
+  ---------------------------------------------------------------------- */
+void SpriteBank::load( FileEquate _file )
+{
+	ASSERT(!m_SpriteBankInstance);
+
+	if( !s_bankList )
+	{
+		// first sprite bank load
+		s_bankList=new ("SpriteBank::load") SpriteBankInstance( NULL );
+		s_bankList->load( _file );
+		m_SpriteBankInstance=s_bankList;
+	}
+	else
+	{
+		SpriteBankInstance *sbiPtr=s_bankList;
+		do
+		{
+			if( sbiPtr->getFile() == _file )
+			{
+				// file already loaded - reference it
+				sbiPtr->load( _file );
+				m_SpriteBankInstance=sbiPtr;
+				return;
+			}
+			sbiPtr=sbiPtr->getNext();
+		}
+		while( sbiPtr );
+
+		// file not loaded - create new instance
+		sbiPtr=s_bankList;
+		s_bankList=new ("SpriteBank::load") SpriteBankInstance( sbiPtr );
+		s_bankList->load( _file );
+		m_SpriteBankInstance=s_bankList;
+	}
+}
+
+/*----------------------------------------------------------------------
+	Function:
+	Purpose:
+	Params:		also deletes the instance if required
+	Returns:
+  ---------------------------------------------------------------------- */
+
+void SpriteBank::dump()
+{
+	ASSERT( m_SpriteBankInstance );
+	if( m_SpriteBankInstance->dump() )
+	{
+		// just removed last last reference - delete instance
+		if( m_SpriteBankInstance==s_bankList)
+		{
+			// first entry in bank list
+			s_bankList=m_SpriteBankInstance->getNext();
+		}
+		else
+		{
+			SpriteBankInstance *sbiPtr=s_bankList;
+			while( sbiPtr->getNext() != m_SpriteBankInstance )
+			{
+				sbiPtr=sbiPtr->getNext();
+			};
+			sbiPtr->setNext( sbiPtr->getNext()->getNext() );
+		}
+
+		delete m_SpriteBankInstance;
+	}
+	m_SpriteBankInstance=NULL;
+}
+
+/*----------------------------------------------------------------------
+	Function:
+	Purpose:
+	Params:
+	Returns:
+  ---------------------------------------------------------------------- */
+void SpriteBank::prepareFT4(POLY_FT4 *_ft4,sFrameHdr *_fh,int _x,int _y,bool _xFlip,bool _yFlip)
+{
+		int		W=_fh->W,H=_fh->H;
+
+		setShadeTexPolyFT4(_ft4);
+		setShadeTex(_ft4,0);
+		setRGB0(_ft4,128,128,128);
+		if (_xFlip)
+			{
+			_x-=_fh->XOfs;
+			_x-=W;
+			}
+		else
+			_x+=_fh->XOfs;
+
+		if (_yFlip)
+			{
+			_y-=_fh->YOfs;
+			_y-=H;
+			}
+		else
+			_y+=_fh->YOfs;
+
+		setXYWH(_ft4,_x,_y,W,H);
+		setUVTp(_fh,_ft4,_xFlip,_yFlip);
+}
+
+
+/*----------------------------------------------------------------------
+	Function:
+	Purpose:	Pass Z scale as 8 bit fraction, 256 = 1:1, 512 = enlarge X2, etc.
+	Params:
+	Returns:
+  ---------------------------------------------------------------------- */
+void SpriteBank::prepareFT4Scaled(POLY_FT4 *_ft4,sFrameHdr *_fh,int _x,int _y,bool _xFlip,bool _yFlip,long _z)
+{
+	int W=_fh->W,H=_fh->H;
+
+	W *= _z;
+	H *= _z;
+	W>>=8;
+	H>>=8;
+
+	setShadeTexPolyFT4(_ft4);
+	if (_xFlip)
+		{
+		_x-=_fh->XOfs;
+		_x-=W;
+		}
+	else
+		_z+=_fh->XOfs;
+
+	_y+=_fh->YOfs;
+
+	setXYWH(_ft4,_x,_y,W,H);
+	setUVTp(_fh,_ft4,_xFlip,_yFlip);
+}
+
+
+/*----------------------------------------------------------------------
+	Function:
+	Purpose:
+	Params:
+	Returns:
+  ---------------------------------------------------------------------- */
+void SpriteBank::setUVTp(sFrameHdr *_fh,POLY_FT4 *_ft4,int _xFlip,int _yFlip)
+{
+	int		U=_fh->U;
+	int		V=_fh->V;
+	int		W=_fh->W;
+	int		H=_fh->H;
+
+	if (!_fh->Rotated) 
+		{
+		if (_xFlip) 
+			{
+			_ft4->u0=U+W-1;
+			_ft4->u1=U-1;
+			_ft4->u2=U+W-1;
+	 		_ft4->u3=U-1;
+			} 
+		else 
+			{
+			_ft4->u0=U;
+			_ft4->u1=U+W;
+			_ft4->u2=U;
+ 			_ft4->u3=U+W;
+	 		}
+		if (_yFlip) 
+			{
+			_ft4->v0=V+H-1;
+			_ft4->v1=V+H-1;
+			_ft4->v2=V-1;
+			_ft4->v3=V-1;
+			} 
+		else 
+			{
+			_ft4->v0=V;
+			_ft4->v1=V;
+			_ft4->v2=V+H;
+			_ft4->v3=V+H;
+			}
+		} 
+	else 
+		{
+		if (_xFlip) 
+			{
+			_ft4->v0=V;
+			_ft4->v2=V;
+			_ft4->v1=V+W;
+			_ft4->v3=V+W;
+			} 
+		else 
+			{
+			_ft4->v0=V+W-1;
+			_ft4->v2=V+W-1;
+			_ft4->v1=V-1;
+			_ft4->v3=V-1;
+			}
+		if (_yFlip) 
+			{
+			_ft4->u0=U+H-1;
+			_ft4->u1=U+H-1;
+			_ft4->u2=U-1;
+			_ft4->u3=U-1;
+			} 
+		else 
+			{
+			_ft4->u0=U;
+			_ft4->u1=U;
+			_ft4->u2=U+H;
+			_ft4->u3=U+H;
+			}
+		}
+	_ft4->tpage=_fh->TPage;
+	_ft4->clut=_fh->Clut;
+}
+
+
+
+