cl_cin.c

quakeIII源码这个不用我多说吧

/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.

This file is part of Quake III Arena source code.

Quake III Arena 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 2 of the License,
or (at your option) any later version.

Quake III Arena 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 Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/

/*****************************************************************************
 * name:		cl_cin.c
 *
 * desc:		video and cinematic playback
 *
 * $Archive: /MissionPack/code/client/cl_cin.c $
 *
 * cl_glconfig.hwtype trtypes 3dfx/ragepro need 256x256
 *
 *****************************************************************************/

#include "client.h"
#include "snd_local.h"

#define MAXSIZE				8
#define MINSIZE				4

#define DEFAULT_CIN_WIDTH	512
#define DEFAULT_CIN_HEIGHT	512

#define ROQ_QUAD			0x1000
#define ROQ_QUAD_INFO		0x1001
#define ROQ_CODEBOOK		0x1002
#define ROQ_QUAD_VQ			0x1011
#define ROQ_QUAD_JPEG		0x1012
#define ROQ_QUAD_HANG		0x1013
#define ROQ_PACKET			0x1030
#define ZA_SOUND_MONO		0x1020
#define ZA_SOUND_STEREO		0x1021

#define MAX_VIDEO_HANDLES	16

extern glconfig_t glConfig;
extern	int		s_paintedtime;
extern	int		s_rawend;


static void RoQ_init( void );

/******************************************************************************
*
* Class:		trFMV
*
* Description:	RoQ/RnR manipulation routines
*				not entirely complete for first run
*
******************************************************************************/

static	long				ROQ_YY_tab[256];
static	long				ROQ_UB_tab[256];
static	long				ROQ_UG_tab[256];
static	long				ROQ_VG_tab[256];
static	long				ROQ_VR_tab[256];
static	unsigned short		vq2[256*16*4];
static	unsigned short		vq4[256*64*4];
static	unsigned short		vq8[256*256*4];


typedef struct {
	byte				linbuf[DEFAULT_CIN_WIDTH*DEFAULT_CIN_HEIGHT*4*2];
	byte				file[65536];
	short				sqrTable[256];

	unsigned int		mcomp[256];
	byte				*qStatus[2][32768];

	long				oldXOff, oldYOff, oldysize, oldxsize;

	int					currentHandle;
} cinematics_t;

typedef struct {
	char				fileName[MAX_OSPATH];
	int					CIN_WIDTH, CIN_HEIGHT;
	int					xpos, ypos, width, height;
	qboolean			looping, holdAtEnd, dirty, alterGameState, silent, shader;
	fileHandle_t		iFile;
	e_status			status;
	unsigned int		startTime;
	unsigned int		lastTime;
	long				tfps;
	long				RoQPlayed;
	long				ROQSize;
	unsigned int		RoQFrameSize;
	long				onQuad;
	long				numQuads;
	long				samplesPerLine;
	unsigned int		roq_id;
	long				screenDelta;

	void ( *VQ0)(byte *status, void *qdata );
	void ( *VQ1)(byte *status, void *qdata );
	void ( *VQNormal)(byte *status, void *qdata );
	void ( *VQBuffer)(byte *status, void *qdata );

	long				samplesPerPixel;				// defaults to 2
	byte*				gray;
	unsigned int		xsize, ysize, maxsize, minsize;

	qboolean			half, smootheddouble, inMemory;
	long				normalBuffer0;
	long				roq_flags;
	long				roqF0;
	long				roqF1;
	long				t[2];
	long				roqFPS;
	int					playonwalls;
	byte*				buf;
	long				drawX, drawY;
} cin_cache;

static cinematics_t		cin;
static cin_cache		cinTable[MAX_VIDEO_HANDLES];
static int				currentHandle = -1;
static int				CL_handle = -1;

extern int				s_soundtime;		// sample PAIRS
extern int   			s_paintedtime; 		// sample PAIRS


void CIN_CloseAllVideos(void) {
	int		i;

	for ( i = 0 ; i < MAX_VIDEO_HANDLES ; i++ ) {
		if (cinTable[i].fileName[0] != 0 ) {
			CIN_StopCinematic(i);
		}
	}
}


static int CIN_HandleForVideo(void) {
	int		i;

	for ( i = 0 ; i < MAX_VIDEO_HANDLES ; i++ ) {
		if ( cinTable[i].fileName[0] == 0 ) {
			return i;
		}
	}
	Com_Error( ERR_DROP, "CIN_HandleForVideo: none free" );
	return -1;
}


extern int CL_ScaledMilliseconds(void);

//-----------------------------------------------------------------------------
// RllSetupTable
//
// Allocates and initializes the square table.
//
// Parameters:	None
//
// Returns:		Nothing
//-----------------------------------------------------------------------------
static void RllSetupTable()
{
	int z;

	for (z=0;z<128;z++) {
		cin.sqrTable[z] = (short)(z*z);
		cin.sqrTable[z+128] = (short)(-cin.sqrTable[z]);
	}
}



//-----------------------------------------------------------------------------
// RllDecodeMonoToMono
//
// Decode mono source data into a mono buffer.
//
// Parameters:	from -> buffer holding encoded data
//				to ->	buffer to hold decoded data
//				size =	number of bytes of input (= # of shorts of output)
//				signedOutput = 0 for unsigned output, non-zero for signed output
//				flag = flags from asset header
//
// Returns:		Number of samples placed in output buffer
//-----------------------------------------------------------------------------
long RllDecodeMonoToMono(unsigned char *from,short *to,unsigned int size,char signedOutput ,unsigned short flag)
{
	unsigned int z;
	int prev;
	
	if (signedOutput)	
		prev =  flag - 0x8000;
	else 
		prev = flag;

	for (z=0;z<size;z++) {
		prev = to[z] = (short)(prev + cin.sqrTable[from[z]]); 
	}
	return size;	//*sizeof(short));
}


//-----------------------------------------------------------------------------
// RllDecodeMonoToStereo
//
// Decode mono source data into a stereo buffer. Output is 4 times the number
// of bytes in the input.
//
// Parameters:	from -> buffer holding encoded data
//				to ->	buffer to hold decoded data
//				size =	number of bytes of input (= 1/4 # of bytes of output)
//				signedOutput = 0 for unsigned output, non-zero for signed output
//				flag = flags from asset header
//
// Returns:		Number of samples placed in output buffer
//-----------------------------------------------------------------------------
long RllDecodeMonoToStereo(unsigned char *from,short *to,unsigned int size,char signedOutput,unsigned short flag)
{
	unsigned int z;
	int prev;
	
	if (signedOutput)	
		prev =  flag - 0x8000;
	else 
		prev = flag;

	for (z = 0; z < size; z++) {
		prev = (short)(prev + cin.sqrTable[from[z]]);
		to[z*2+0] = to[z*2+1] = (short)(prev);
	}
	
	return size;	// * 2 * sizeof(short));
}


//-----------------------------------------------------------------------------
// RllDecodeStereoToStereo
//
// Decode stereo source data into a stereo buffer.
//
// Parameters:	from -> buffer holding encoded data
//				to ->	buffer to hold decoded data
//				size =	number of bytes of input (= 1/2 # of bytes of output)
//				signedOutput = 0 for unsigned output, non-zero for signed output
//				flag = flags from asset header
//
// Returns:		Number of samples placed in output buffer
//-----------------------------------------------------------------------------
long RllDecodeStereoToStereo(unsigned char *from,short *to,unsigned int size,char signedOutput, unsigned short flag)
{
	unsigned int z;
	unsigned char *zz = from;
	int	prevL, prevR;

	if (signedOutput) {
		prevL = (flag & 0xff00) - 0x8000;
		prevR = ((flag & 0x00ff) << 8) - 0x8000;
	} else {
		prevL = flag & 0xff00;
		prevR = (flag & 0x00ff) << 8;
	}

	for (z=0;z<size;z+=2) {
                prevL = (short)(prevL + cin.sqrTable[*zz++]); 
                prevR = (short)(prevR + cin.sqrTable[*zz++]);
                to[z+0] = (short)(prevL);
                to[z+1] = (short)(prevR);
	}
	
	return (size>>1);	//*sizeof(short));
}


//-----------------------------------------------------------------------------
// RllDecodeStereoToMono
//
// Decode stereo source data into a mono buffer.
//
// Parameters:	from -> buffer holding encoded data
//				to ->	buffer to hold decoded data
//				size =	number of bytes of input (= # of bytes of output)
//				signedOutput = 0 for unsigned output, non-zero for signed output
//				flag = flags from asset header
//
// Returns:		Number of samples placed in output buffer
//-----------------------------------------------------------------------------
long RllDecodeStereoToMono(unsigned char *from,short *to,unsigned int size,char signedOutput, unsigned short flag)
{
	unsigned int z;
	int prevL,prevR;
	
	if (signedOutput) {
		prevL = (flag & 0xff00) - 0x8000;
		prevR = ((flag & 0x00ff) << 8) -0x8000;
	} else {
		prevL = flag & 0xff00;
		prevR = (flag & 0x00ff) << 8;
	}

	for (z=0;z<size;z+=1) {
		prevL= prevL + cin.sqrTable[from[z*2]];
		prevR = prevR + cin.sqrTable[from[z*2+1]];
		to[z] = (short)((prevL + prevR)/2);
	}

	return size;
}

/******************************************************************************
*
* Function:		
*
* Description:	
*
******************************************************************************/

static void move8_32( byte *src, byte *dst, int spl )
{
	double *dsrc, *ddst;
	int dspl;

	dsrc = (double *)src;
	ddst = (double *)dst;
	dspl = spl>>3;

	ddst[0] = dsrc[0]; ddst[1] = dsrc[1]; ddst[2] = dsrc[2]; ddst[3] = dsrc[3];
	dsrc += dspl; ddst += dspl;
	ddst[0] = dsrc[0]; ddst[1] = dsrc[1]; ddst[2] = dsrc[2]; ddst[3] = dsrc[3];
	dsrc += dspl; ddst += dspl;
	ddst[0] = dsrc[0]; ddst[1] = dsrc[1]; ddst[2] = dsrc[2]; ddst[3] = dsrc[3];
	dsrc += dspl; ddst += dspl;
	ddst[0] = dsrc[0]; ddst[1] = dsrc[1]; ddst[2] = dsrc[2]; ddst[3] = dsrc[3];
	dsrc += dspl; ddst += dspl;
	ddst[0] = dsrc[0]; ddst[1] = dsrc[1]; ddst[2] = dsrc[2]; ddst[3] = dsrc[3];
	dsrc += dspl; ddst += dspl;
	ddst[0] = dsrc[0]; ddst[1] = dsrc[1]; ddst[2] = dsrc[2]; ddst[3] = dsrc[3];
	dsrc += dspl; ddst += dspl;
	ddst[0] = dsrc[0]; ddst[1] = dsrc[1]; ddst[2] = dsrc[2]; ddst[3] = dsrc[3];
	dsrc += dspl; ddst += dspl;
	ddst[0] = dsrc[0]; ddst[1] = dsrc[1]; ddst[2] = dsrc[2]; ddst[3] = dsrc[3];
}

/******************************************************************************
*
* Function:		
*
* Description:	
*
******************************************************************************/

static void move4_32( byte *src, byte *dst, int spl  )
{
	double *dsrc, *ddst;
	int dspl;

	dsrc = (double *)src;
	ddst = (double *)dst;
	dspl = spl>>3;

	ddst[0] = dsrc[0]; ddst[1] = dsrc[1];
	dsrc += dspl; ddst += dspl;
	ddst[0] = dsrc[0]; ddst[1] = dsrc[1];
	dsrc += dspl; ddst += dspl;
	ddst[0] = dsrc[0]; ddst[1] = dsrc[1];
	dsrc += dspl; ddst += dspl;
	ddst[0] = dsrc[0]; ddst[1] = dsrc[1];
}

/******************************************************************************
*
* Function:		
*
* Description:	
*
******************************************************************************/

static void blit8_32( byte *src, byte *dst, int spl  )
{
	double *dsrc, *ddst;
	int dspl;

	dsrc = (double *)src;
	ddst = (double *)dst;
	dspl = spl>>3;

	ddst[0] = dsrc[0]; ddst[1] = dsrc[1]; ddst[2] = dsrc[2]; ddst[3] = dsrc[3];
	dsrc += 4; ddst += dspl;
	ddst[0] = dsrc[0]; ddst[1] = dsrc[1]; ddst[2] = dsrc[2]; ddst[3] = dsrc[3];
	dsrc += 4; ddst += dspl;
	ddst[0] = dsrc[0]; ddst[1] = dsrc[1]; ddst[2] = dsrc[2]; ddst[3] = dsrc[3];
	dsrc += 4; ddst += dspl;
	ddst[0] = dsrc[0]; ddst[1] = dsrc[1]; ddst[2] = dsrc[2]; ddst[3] = dsrc[3];
	dsrc += 4; ddst += dspl;
	ddst[0] = dsrc[0]; ddst[1] = dsrc[1]; ddst[2] = dsrc[2]; ddst[3] = dsrc[3];
	dsrc += 4; ddst += dspl;
	ddst[0] = dsrc[0]; ddst[1] = dsrc[1]; ddst[2] = dsrc[2]; ddst[3] = dsrc[3];
	dsrc += 4; ddst += dspl;
	ddst[0] = dsrc[0]; ddst[1] = dsrc[1]; ddst[2] = dsrc[2]; ddst[3] = dsrc[3];
	dsrc += 4; ddst += dspl;
	ddst[0] = dsrc[0]; ddst[1] = dsrc[1]; ddst[2] = dsrc[2]; ddst[3] = dsrc[3];
}

/******************************************************************************
*
* Function:		
*
* Description:	
*
******************************************************************************/
#define movs double
static void blit4_32( byte *src, byte *dst, int spl  )
{
	movs *dsrc, *ddst;
	int dspl;

	dsrc = (movs *)src;
	ddst = (movs *)dst;
	dspl = spl>>3;