Subversion Repositories Kolibri OS

/*

Copyright (C) 1996-1997 Id Software, Inc.

This program 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.

This program 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 this program; if not, write to the Free Software

Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/

// r_misc.c

#include "quakedef.h"

#include "r_local.h"

/*

===============

R_CheckVariables

===============

*/

void R_CheckVariables (void)

{

	static float	oldbright;

	if (r_fullbright.value != oldbright)

	{

		oldbright = r_fullbright.value;

		D_FlushCaches ();	// so all lighting changes

	}

}

/*

============

Show

Debugging use

============

*/

void Show (void)

{

	vrect_t	vr;

	vr.x = vr.y = 0;

	vr.width = vid.width;

	vr.height = vid.height;

	vr.pnext = NULL;

	VID_Update (&vr);

}

/*

====================

R_TimeRefresh_f

For program optimization

====================

*/

void R_TimeRefresh_f (void)

{

	int			i;

	float		start, stop, time;

	int			startangle;

	vrect_t		vr;

	startangle = r_refdef.viewangles[1];

	start = Sys_FloatTime ();

	for (i=0 ; i<128 ; i++)

	{

		r_refdef.viewangles[1] = i/128.0*360.0;

		VID_LockBuffer ();

		R_RenderView ();

		VID_UnlockBuffer ();

		vr.x = r_refdef.vrect.x;

		vr.y = r_refdef.vrect.y;

		vr.width = r_refdef.vrect.width;

		vr.height = r_refdef.vrect.height;

		vr.pnext = NULL;

		VID_Update (&vr);

	}

	stop = Sys_FloatTime ();

	time = stop-start;

	Con_Printf ("%f seconds (%f fps)\n", time, 128/time);

	r_refdef.viewangles[1] = startangle;

}

/*

================

R_LineGraph

Only called by R_DisplayTime

================

*/

void R_LineGraph (int x, int y, int h)

{

	int		i;

	byte	*dest;

	int		s;

// FIXME: should be disabled on no-buffer adapters, or should be in the driver

	x += r_refdef.vrect.x;

	y += r_refdef.vrect.y;

	dest = vid.buffer + vid.rowbytes*y + x;

	s = r_graphheight.value;

	if (h>s)

		h = s;

	for (i=0 ; i

	{

		dest[0] = 0xff;

		*(dest-vid.rowbytes) = 0x30;

	}

	for ( ; i

	{

		dest[0] = 0x30;

		*(dest-vid.rowbytes) = 0x30;

	}

}

/*

==============

R_TimeGraph

Performance monitoring tool

==============

*/

#define	MAX_TIMINGS		100

extern float mouse_x, mouse_y;

void R_TimeGraph (void)

{

	static	int		timex;

	int		a;

	float	r_time2;

	static byte	r_timings[MAX_TIMINGS];

	int		x;

	r_time2 = Sys_FloatTime ();

	a = (r_time2-r_time1)/0.01;

//a = fabs(mouse_y * 0.05);

//a = (int)((r_refdef.vieworg[2] + 1024)/1)%(int)r_graphheight.value;

//a = fabs(velocity[0])/20;

//a = ((int)fabs(origin[0])/8)%20;

//a = (cl.idealpitch + 30)/5;

	r_timings[timex] = a;

	a = timex;

	if (r_refdef.vrect.width <= MAX_TIMINGS)

		x = r_refdef.vrect.width-1;

	else

		x = r_refdef.vrect.width -

				(r_refdef.vrect.width - MAX_TIMINGS)/2;

	do

	{

		R_LineGraph (x, r_refdef.vrect.height-2, r_timings[a]);

		if (x==0)

			break;		// screen too small to hold entire thing

		x--;

		a--;

		if (a == -1)

			a = MAX_TIMINGS-1;

	} while (a != timex);

	timex = (timex+1)%MAX_TIMINGS;

}

/*

=============

R_PrintTimes

=============

*/

void R_PrintTimes (void)

{

	float	r_time2;

	float		ms;

	r_time2 = Sys_FloatTime ();

	ms = 1000* (r_time2 - r_time1);

	Con_Printf ("%5.1f ms %3i/%3i/%3i poly %3i surf\n",

				ms, c_faceclip, r_polycount, r_drawnpolycount, c_surf);

	c_surf = 0;

}

/*

=============

R_PrintDSpeeds

=============

*/

void R_PrintDSpeeds (void)

{

	float	ms, dp_time, r_time2, rw_time, db_time, se_time, de_time, dv_time;

	r_time2 = Sys_FloatTime ();

	dp_time = (dp_time2 - dp_time1) * 1000;

	rw_time = (rw_time2 - rw_time1) * 1000;

	db_time = (db_time2 - db_time1) * 1000;

	se_time = (se_time2 - se_time1) * 1000;

	de_time = (de_time2 - de_time1) * 1000;

	dv_time = (dv_time2 - dv_time1) * 1000;

	ms = (r_time2 - r_time1) * 1000;

	Con_Printf ("%3i %4.1fp %3iw %4.1fb %3is %4.1fe %4.1fv\n",

				(int)ms, dp_time, (int)rw_time, db_time, (int)se_time, de_time,

				dv_time);

}

/*

=============

R_PrintAliasStats

=============

*/

void R_PrintAliasStats (void)

{

	Con_Printf ("%3i polygon model drawn\n", r_amodels_drawn);

}

void WarpPalette (void)

{

	int		i,j;

	byte	newpalette[768];

	int		basecolor[3];

	basecolor[0] = 130;

	basecolor[1] = 80;

	basecolor[2] = 50;

// pull the colors halfway to bright brown

	for (i=0 ; i<256 ; i++)

	{

		for (j=0 ; j<3 ; j++)

		{

			newpalette[i*3+j] = (host_basepal[i*3+j] + basecolor[j])/2;

		}

	}

	VID_ShiftPalette (newpalette);

}

/*

===================

R_TransformFrustum

===================

*/

void R_TransformFrustum (void)

{

	int		i;

	vec3_t	v, v2;

	for (i=0 ; i<4 ; i++)

	{

		v[0] = screenedge[i].normal[2];

		v[1] = -screenedge[i].normal[0];

		v[2] = screenedge[i].normal[1];

		v2[0] = v[1]*vright[0] + v[2]*vup[0] + v[0]*vpn[0];

		v2[1] = v[1]*vright[1] + v[2]*vup[1] + v[0]*vpn[1];

		v2[2] = v[1]*vright[2] + v[2]*vup[2] + v[0]*vpn[2];

		VectorCopy (v2, view_clipplanes[i].normal);

		view_clipplanes[i].dist = DotProduct (modelorg, v2);

	}

}

#if	!id386

/*

================

TransformVector

================

*/

void TransformVector (vec3_t in, vec3_t out)

{

	out[0] = DotProduct(in,vright);

	out[1] = DotProduct(in,vup);

	out[2] = DotProduct(in,vpn);

}

#endif

/*

================

R_TransformPlane

================

*/

void R_TransformPlane (mplane_t *p, float *normal, float *dist)

{

	float	d;

	d = DotProduct (r_origin, p->normal);

	*dist = p->dist - d;

// TODO: when we have rotating entities, this will need to use the view matrix

	TransformVector (p->normal, normal);

}

/*

===============

R_SetUpFrustumIndexes

===============

*/

void R_SetUpFrustumIndexes (void)

{

	int		i, j, *pindex;

	pindex = r_frustum_indexes;

	for (i=0 ; i<4 ; i++)

	{

		for (j=0 ; j<3 ; j++)

		{

			if (view_clipplanes[i].normal[j] < 0)

			{

				pindex[j] = j;

				pindex[j+3] = j+3;

			}

			else

			{

				pindex[j] = j+3;

				pindex[j+3] = j;

			}

		}

	// FIXME: do just once at start

		pfrustum_indexes[i] = pindex;

		pindex += 6;

	}

}

/*

===============

R_SetupFrame

===============

*/

void R_SetupFrame (void)

{

	int				edgecount;

	vrect_t			vrect;

	float			w, h;

// don't allow cheats in multiplayer

	if (cl.maxclients > 1)

	{

		Cvar_Set ("r_draworder", "0");

		Cvar_Set ("r_fullbright", "0");

		Cvar_Set ("r_ambient", "0");

		Cvar_Set ("r_drawflat", "0");

	}

	if (r_numsurfs.value)

	{

		if ((surface_p - surfaces) > r_maxsurfsseen)

			r_maxsurfsseen = surface_p - surfaces;

		Con_Printf ("Used %d of %d surfs; %d max\n", surface_p - surfaces,

				surf_max - surfaces, r_maxsurfsseen);

	}

	if (r_numedges.value)

	{

		edgecount = edge_p - r_edges;

		if (edgecount > r_maxedgesseen)

			r_maxedgesseen = edgecount;

		Con_Printf ("Used %d of %d edges; %d max\n", edgecount,

				r_numallocatededges, r_maxedgesseen);

	}

	r_refdef.ambientlight = r_ambient.value;

	if (r_refdef.ambientlight < 0)

		r_refdef.ambientlight = 0;

	if (!sv.active)

		r_draworder.value = 0;	// don't let cheaters look behind walls

	R_CheckVariables ();

	R_AnimateLight ();

	r_framecount++;

	numbtofpolys = 0;

// debugging

#if 0

r_refdef.vieworg[0]=  80;

r_refdef.vieworg[1]=      64;

r_refdef.vieworg[2]=      40;

r_refdef.viewangles[0]=    0;

r_refdef.viewangles[1]=    46.763641357;

r_refdef.viewangles[2]=    0;

#endif

// build the transformation matrix for the given view angles

	VectorCopy (r_refdef.vieworg, modelorg);

	VectorCopy (r_refdef.vieworg, r_origin);

	AngleVectors (r_refdef.viewangles, vpn, vright, vup);

// current viewleaf

	r_oldviewleaf = r_viewleaf;

	r_viewleaf = Mod_PointInLeaf (r_origin, cl.worldmodel);

	r_dowarpold = r_dowarp;

	r_dowarp = r_waterwarp.value && (r_viewleaf->contents <= CONTENTS_WATER);

	if ((r_dowarp != r_dowarpold) || r_viewchanged || lcd_x.value)

	{

		if (r_dowarp)

		{

			if ((vid.width <= vid.maxwarpwidth) &&

				(vid.height <= vid.maxwarpheight))

			{

				vrect.x = 0;

				vrect.y = 0;

				vrect.width = vid.width;

				vrect.height = vid.height;

				R_ViewChanged (&vrect, sb_lines, vid.aspect);

			}

			else

			{

				w = vid.width;

				h = vid.height;

				if (w > vid.maxwarpwidth)

				{

					h *= (float)vid.maxwarpwidth / w;

					w = vid.maxwarpwidth;

				}

				if (h > vid.maxwarpheight)

				{

					h = vid.maxwarpheight;

					w *= (float)vid.maxwarpheight / h;

				}

				vrect.x = 0;

				vrect.y = 0;

				vrect.width = (int)w;

				vrect.height = (int)h;

				R_ViewChanged (&vrect,

							   (int)((float)sb_lines * (h/(float)vid.height)),

							   vid.aspect * (h / w) *

								 ((float)vid.width / (float)vid.height));

			}

		}

		else

		{

			vrect.x = 0;

			vrect.y = 0;

			vrect.width = vid.width;

			vrect.height = vid.height;

			R_ViewChanged (&vrect, sb_lines, vid.aspect);

		}

		r_viewchanged = false;

	}

// start off with just the four screen edge clip planes

	R_TransformFrustum ();

// save base values

	VectorCopy (vpn, base_vpn);

	VectorCopy (vright, base_vright);

	VectorCopy (vup, base_vup);

	VectorCopy (modelorg, base_modelorg);

	R_SetSkyFrame ();

	R_SetUpFrustumIndexes ();

	r_cache_thrash = false;

// clear frame counts

	c_faceclip = 0;

	d_spanpixcount = 0;

	r_polycount = 0;

	r_drawnpolycount = 0;

	r_wholepolycount = 0;

	r_amodels_drawn = 0;

	r_outofsurfaces = 0;

	r_outofedges = 0;

	D_SetupFrame ();

}