shithub: qk1

ref: 0f07da746048c1452a42d3a964157448967c357f
dir: /d_init.c/

#include "quakedef.h"

#define NUM_MIPS	4

static cvar_t	d_mipcap = {"d_mipcap", "0"};
static cvar_t	d_mipscale = {"d_mipscale", "1"};

surfcache_t		*d_initial_rover;
bool		d_roverwrapped;
int				d_minmip;
float			d_scalemip[NUM_MIPS-1];

static float	basemip[NUM_MIPS-1] = {1.0, 0.5*0.8, 0.25*0.8};

void (*d_drawspans) (espan_t *pspan, byte alpha);


/*
===============
D_Init
===============
*/
void D_Init (void)
{
	Cvar_RegisterVariable (&d_mipcap);
	Cvar_RegisterVariable (&d_mipscale);

	r_recursiveaffinetriangles = true;
	r_aliasuvscale = 1.0;
}

/*
===============
D_SetupFrame
===============
*/
void D_SetupFrame (void)
{
	int		i;

	if (r_dowarp)
		d_viewbuffer = r_warpbuffer;
	else
		d_viewbuffer = (void *)(byte *)vid.buffer;

	if (r_dowarp)
		screenwidth = WARP_WIDTH;
	else
		screenwidth = vid.rowbytes;

	d_roverwrapped = false;
	d_initial_rover = sc_rover;

	d_minmip = d_mipcap.value;
	if (d_minmip > 3)
		d_minmip = 3;
	else if (d_minmip < 0)
		d_minmip = 0;

	for (i=0 ; i<(NUM_MIPS-1) ; i++)
		d_scalemip[i] = basemip[i] * d_mipscale.value;

	d_drawspans = D_DrawSpans16;
}