// draw.c -- this is the only file outside the refresh that touches the// vid buffer #include "quakedef.h" typedef struct {	vrect_t rect;	int width;	int height;	uint8_t *ptexbytes;	int rowbytes;} rectdesc_t; static rectdesc_t r_rectdesc; uint8_t *draw_chars; // 8*8 graphic charactersqpic_t *draw_disc;qpic_t *draw_backtile; //=============================================================================/* Support Routines */ typedef struct cachepic_s{	char name[MAX_QPATH];	cache_user_t cache;} cachepic_t; #define MAX_CACHED_PICS 128cachepic_t menu_cachepics[MAX_CACHED_PICS];int menu_numcachepics; qpic_t *Draw_PicFromWad (char *name){	return W_GetLumpName (name);} /*================Draw_CachePic================*/qpic_t *Draw_CachePic (char *path){	cachepic_t *pic;	int i;	qpic_t *dat; 	for (pic=menu_cachepics, i=0 ; i<menu_numcachepics ; pic++, i++)		if (!strcmp (path, pic->name))			break; 	if (i == menu_numcachepics)	{		if (menu_numcachepics == MAX_CACHED_PICS)			Sys_Error ("menu_numcachepics == MAX_CACHED_PICS");		menu_numcachepics++;		strcpy (pic->name, path);	} 	dat = Cache_Check (&pic->cache); 	if (dat)		return dat; //// load the pic from disk//	COM_LoadCacheFile (path, &pic->cache); 	dat = (qpic_t *)pic->cache.data;	if (!dat)	{		Sys_Error ("Draw_CachePic: failed to load %s", path);	} 	SwapPic (dat); 	return dat;} /*===============Draw_Init===============*/void Draw_Init (void){	draw_chars = W_GetLumpName ("conchars");	draw_disc = W_GetLumpName ("disc");	draw_backtile = W_GetLumpName ("backtile"); 	r_rectdesc.width = draw_backtile->width;	r_rectdesc.height = draw_backtile->height;	r_rectdesc.ptexbytes = draw_backtile->data;	r_rectdesc.rowbytes = draw_backtile->width;} /*================Draw_Character Draws one 8*8 graphics character with 0 being transparent.It can be clipped to the top of the screen to allow the console to besmoothly scrolled off.================*/void Draw_Character (int x, int y, int num){	uint8_t *dest;	uint8_t *source;	unsigned short *pusdest;	int drawline;	int row, col; 	num &= 255; 	if (y <= -8)		return; // totally off screen #ifdef PARANOID	if (y > vid.height - 8 || x < 0 || x > vid.width - 8)		Sys_Error ("Con_DrawCharacter: (%i, %i)", x, y);	if (num < 0 || num > 255)		Sys_Error ("Con_DrawCharacter: char %i", num);#endif 	row = num>>4;	col = num&15;	source = draw_chars + (row<<10) + (col<<3); 	if (y < 0)	{ // clipped		drawline = 8 + y;		source -= 128*y;		y = 0;	}	else		drawline = 8; 	if (r_pixbytes == 1)	{		dest = vid.conbuffer + y*vid.conrowbytes + x; 		while (drawline--)		{			if (source[0])				dest[0] = source[0];			if (source[1])				dest[1] = source[1];			if (source[2])				dest[2] = source[2];			if (source[3])				dest[3] = source[3];			if (source[4])				dest[4] = source[4];			if (source[5])				dest[5] = source[5];			if (source[6])				dest[6] = source[6];			if (source[7])				dest[7] = source[7];			source += 128;			dest += vid.conrowbytes;		}	}	else	{	// FIXME: pre-expand to native format?		pusdest = (unsigned short *)				((uint8_t *)vid.conbuffer + y*vid.conrowbytes + (x<<1)); 		while (drawline--)		{			if (source[0])				pusdest[0] = d_8to16table[source[0]];			if (source[1])				pusdest[1] = d_8to16table[source[1]];			if (source[2])				pusdest[2] = d_8to16table[source[2]];			if (source[3])				pusdest[3] = d_8to16table[source[3]];			if (source[4])				pusdest[4] = d_8to16table[source[4]];			if (source[5])				pusdest[5] = d_8to16table[source[5]];			if (source[6])				pusdest[6] = d_8to16table[source[6]];			if (source[7])				pusdest[7] = d_8to16table[source[7]]; 			source += 128;			pusdest += (vid.conrowbytes >> 1);		}	}} /*================Draw_String================*/void Draw_String (int x, int y, char *str){	while (*str)	{		Draw_Character (x, y, *str);		str++;		x += 8;	}} /*================Draw_DebugChar Draws a single character directly to the upper right corner of the screen.This is for debugging lockups by drawing different chars in different partsof the code.================*/void Draw_DebugChar (char num){	uint8_t *dest;	uint8_t *source;	int drawline;	extern uint8_t *draw_chars;	int row, col; 	if (!vid.direct)		return; // don't have direct FB access, so no debugchars... 	drawline = 8; 	row = num>>4;	col = num&15;	source = draw_chars + (row<<10) + (col<<3); 	dest = vid.direct + 312; 	while (drawline--)	{		dest[0] = source[0];		dest[1] = source[1];		dest[2] = source[2];		dest[3] = source[3];		dest[4] = source[4];		dest[5] = source[5];		dest[6] = source[6];		dest[7] = source[7];		source += 128;		dest += 320;	}} /*=============Draw_Pic=============*/void Draw_Pic (int x, int y, qpic_t *pic){	uint8_t *dest, *source;	unsigned short *pusdest;	int v, u; 	if ((x < 0) ||		(x + pic->width > vid.width) ||		(y < 0) ||		(y + pic->height > vid.height))	{		Sys_Error ("Draw_Pic: bad coordinates");	} 	source = pic->data; 	if (r_pixbytes == 1)	{		dest = vid.buffer + y * vid.rowbytes + x; 		for (v=0 ; v<pic->height ; v++)		{			memmove (dest, source, pic->width);			dest += vid.rowbytes;			source += pic->width;		}	}	else	{	// FIXME: pretranslate at load time?		pusdest = (unsigned short *)vid.buffer + y * (vid.rowbytes >> 1) + x; 		for (v=0 ; v<pic->height ; v++)		{			for (u=0 ; u<pic->width ; u++)			{				pusdest[u] = d_8to16table[source[u]];			} 			pusdest += vid.rowbytes >> 1;			source += pic->width;		}	}} /*=============Draw_TransPic=============*/void Draw_TransPic (int x, int y, qpic_t *pic){	uint8_t *dest, *source, tbyte;	unsigned short *pusdest;	int v, u; 	if (x < 0 || (x + pic->width) > vid.width || y < 0 || (y + pic->height) > vid.height)	{		Sys_Error ("Draw_TransPic: bad coordinates");	} 	source = pic->data; 	if (r_pixbytes == 1)	{		dest = vid.buffer + y * vid.rowbytes + x; 		if (pic->width & 7)		{ // general			for (v=0 ; v<pic->height ; v++)			{				for (u=0 ; u<pic->width ; u++)					if ( (tbyte=source[u]) != TRANSPARENT_COLOR)						dest[u] = tbyte; 				dest += vid.rowbytes;				source += pic->width;			}		}		else		{ // unwound			for (v=0 ; v<pic->height ; v++)			{				for (u=0 ; u<pic->width ; u+=8)				{					if ( (tbyte=source[u]) != TRANSPARENT_COLOR)						dest[u] = tbyte;					if ( (tbyte=source[u+1]) != TRANSPARENT_COLOR)						dest[u+1] = tbyte;					if ( (tbyte=source[u+2]) != TRANSPARENT_COLOR)						dest[u+2] = tbyte;					if ( (tbyte=source[u+3]) != TRANSPARENT_COLOR)						dest[u+3] = tbyte;					if ( (tbyte=source[u+4]) != TRANSPARENT_COLOR)						dest[u+4] = tbyte;					if ( (tbyte=source[u+5]) != TRANSPARENT_COLOR)						dest[u+5] = tbyte;					if ( (tbyte=source[u+6]) != TRANSPARENT_COLOR)						dest[u+6] = tbyte;					if ( (tbyte=source[u+7]) != TRANSPARENT_COLOR)						dest[u+7] = tbyte;				}				dest += vid.rowbytes;				source += pic->width;			}		}	}	else	{	// FIXME: pretranslate at load time?		pusdest = (unsigned short *)vid.buffer + y * (vid.rowbytes >> 1) + x; 		for (v=0 ; v<pic->height ; v++)		{			for (u=0 ; u<pic->width ; u++)			{				tbyte = source[u]; 				if (tbyte != TRANSPARENT_COLOR)				{					pusdest[u] = d_8to16table[tbyte];				}			} 			pusdest += vid.rowbytes >> 1;			source += pic->width;		}	}} /*=============Draw_TransPicTranslate=============*/void Draw_TransPicTranslate (int x, int y, qpic_t *pic, uint8_t *translation){	uint8_t *dest, *source, tbyte;	unsigned short *pusdest;	int v, u; 	if (x < 0 || (x + pic->width) > vid.width || y < 0 || (y + pic->height) > vid.height)	{		Sys_Error ("Draw_TransPic: bad coordinates");	} 	source = pic->data; 	if (r_pixbytes == 1)	{		dest = vid.buffer + y * vid.rowbytes + x; 		if (pic->width & 7)		{ // general			for (v=0 ; v<pic->height ; v++)			{				for (u=0 ; u<pic->width ; u++)					if ( (tbyte=source[u]) != TRANSPARENT_COLOR)						dest[u] = translation[tbyte]; 				dest += vid.rowbytes;				source += pic->width;			}		}		else		{ // unwound			for (v=0 ; v<pic->height ; v++)			{				for (u=0 ; u<pic->width ; u+=8)				{					if ( (tbyte=source[u]) != TRANSPARENT_COLOR)						dest[u] = translation[tbyte];					if ( (tbyte=source[u+1]) != TRANSPARENT_COLOR)						dest[u+1] = translation[tbyte];					if ( (tbyte=source[u+2]) != TRANSPARENT_COLOR)						dest[u+2] = translation[tbyte];					if ( (tbyte=source[u+3]) != TRANSPARENT_COLOR)						dest[u+3] = translation[tbyte];					if ( (tbyte=source[u+4]) != TRANSPARENT_COLOR)						dest[u+4] = translation[tbyte];					if ( (tbyte=source[u+5]) != TRANSPARENT_COLOR)						dest[u+5] = translation[tbyte];					if ( (tbyte=source[u+6]) != TRANSPARENT_COLOR)						dest[u+6] = translation[tbyte];					if ( (tbyte=source[u+7]) != TRANSPARENT_COLOR)						dest[u+7] = translation[tbyte];				}				dest += vid.rowbytes;				source += pic->width;			}		}	}	else	{	// FIXME: pretranslate at load time?		pusdest = (unsigned short *)vid.buffer + y * (vid.rowbytes >> 1) + x; 		for (v=0 ; v<pic->height ; v++)		{			for (u=0 ; u<pic->width ; u++)			{				tbyte = source[u]; 				if (tbyte != TRANSPARENT_COLOR)				{					pusdest[u] = d_8to16table[tbyte];				}			} 			pusdest += vid.rowbytes >> 1;			source += pic->width;		}	}} void Draw_CharToConback (int num, uint8_t *dest){	int row, col;	uint8_t *source;	int drawline;	int x; 	row = num>>4;	col = num&15;	source = draw_chars + (row<<10) + (col<<3); 	drawline = 8; 	while (drawline--)	{		for (x=0 ; x<8 ; x++)			if (source[x])				dest[x] = 0x60 + source[x];		source += 128;		dest += 320;	} } /*

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