ref_soft: Make it draw something, screen settings still wrong

r_edge.c

@@ -69,6 +69,7 @@ static void (*pdrawfunc)(void);
 
 edge_t	edge_head;
 edge_t	edge_tail;
+
 edge_t	edge_aftertail;
 edge_t	edge_sentinel;
 
@@ -160,9 +161,15 @@ void R_InsertNewEdges (edge_t *edgestoadd, edge_t *edgelist)
 	{
 		next_edge = edgestoadd->next;
 edgesearch:
+		if( !edgelist )
+		{
+		//	gEngfuncs.Con_Printf("NULL edgelist!\n");
+			//return;
+		}
 		if (edgelist->u >= edgestoadd->u)
 			goto addedge;
 		edgelist=edgelist->next;
+#if 1
 		if (edgelist->u >= edgestoadd->u)
 			goto addedge;
 		edgelist=edgelist->next;
@@ -172,6 +179,7 @@ edgesearch:
 		if (edgelist->u >= edgestoadd->u)
 			goto addedge;
 		edgelist=edgelist->next;
+#endif
 		goto edgesearch;
 
 	// insert edgestoadd before edgelist
@@ -255,10 +263,14 @@ pushback:
 
 	// find out where the edge goes in the edge list
 		pwedge = pedge->prev->prev;
+	//	if( !pwedge )
+		//	return;
 
 		while (pwedge->u > pedge->u)
 		{
 			pwedge = pwedge->prev;
+			//if( !pwedge )
+				//return;
 		}
 
 	// put the edge back into the edge list
@@ -647,7 +659,7 @@ void R_ScanEdges (void)
 
 // clear active edges to just the background edges around the whole screen
 // FIXME: most of this only needs to be set up once
-	edge_head.u = 0; //r_refdef.vrect.x << 20;
+	edge_head.u = 1 << 20; //r_refdef.vrect.x << 20;
 	edge_head_u_shift20 = edge_head.u >> 20;
 	edge_head.u_step = 0;
 	edge_head.prev = NULL;
@@ -655,7 +667,7 @@ void R_ScanEdges (void)
 	edge_head.surfs[0] = 0;
 	edge_head.surfs[1] = 1;
 	
-	edge_tail.u = 0xFFFFF; // (r_refdef.vrectright << 20) + 0xFFFFF;
+	edge_tail.u =(gpGlobals->width << 20) + 0xFFFFF; // (r_refdef.vrectright << 20) + 0xFFFFF;
 	edge_tail_u_shift20 = edge_tail.u >> 20;
 	edge_tail.u_step = 0;
 	edge_tail.prev = &edge_head;
@@ -689,7 +701,7 @@ void R_ScanEdges (void)
 		{
 			R_InsertNewEdges (newedges[iv], edge_head.next);
 		}
-
+#if 1
 		(*pdrawfunc) ();
 
 	// flush the span list if we can't be sure we have enough spans left for
@@ -704,7 +716,7 @@ void R_ScanEdges (void)
 
 			span_p = basespan_p;
 		}
-
+#endif
 		if (removeedges[iv])
 			R_RemoveEdges (removeedges[iv]);
 
@@ -779,12 +791,12 @@ Simple single color fill with no texture mapping
 void D_FlatFillSurface (surf_t *surf, int color)
 {
 	espan_t	*span;
-	byte	*pdest;
+	pixel_t	*pdest;
 	int		u, u2;
 	
 	for (span=surf->spans ; span ; span=span->pnext)
 	{
-		pdest = (byte *)d_viewbuffer + r_screenwidth*span->v;
+		pdest = d_viewbuffer + r_screenwidth*span->v;
 		u = span->u;
 		u2 = span->u + span->count - 1;
 		for ( ; u <= u2 ; u++)
@@ -869,7 +881,7 @@ void D_BackgroundSurf (surf_t *s)
 	d_zistepv = 0;
 	d_ziorigin = -0.9;
 
-	D_FlatFillSurface (s, (int)sw_clearcolor->value & 0xFF);
+	D_FlatFillSurface (s, (int)sw_clearcolor->value & 0xFFFF);
 	D_DrawZSpans (s->spans);
 }
 
@@ -1027,6 +1039,8 @@ void D_SolidSurf (surf_t *s)
 	}
 #endif
 
+	if( !pface )
+		return;
 // FIXME: make this passed in to D_CacheSurface
 	pcurrentcache = D_CacheSurface (pface, miplevel);
 
@@ -1078,7 +1092,7 @@ void D_DrawflatSurfaces (void)
 
 		// make a stable color for each surface by taking the low
 		// bits of the msurface pointer
-		D_FlatFillSurface (s, (int)s->msurf & 0xFF);
+		D_FlatFillSurface (s, (int)s->msurf & 0xFFFF);
 		D_DrawZSpans (s->spans);
 	}
 }

r_glblit.c

@@ -168,6 +168,9 @@ void R_InitBlit()
 
 	R_BuildScreenMap();
 	R_BuildBlendMaps();
+	d_pzbuffer = malloc(vid.width*vid.height*2);
+	R_InitCaches();
+
 }
 
 void R_BlitScreen()

r_local.h

@@ -783,11 +783,11 @@ extern cvar_t	*r_showhull;
 
 #define DS_SPAN_LIST_END        -128
 
-#define NUMSTACKEDGES           2000
+#define NUMSTACKEDGES           4000
 #define MINEDGES                        NUMSTACKEDGES
-#define NUMSTACKSURFACES        1000
+#define NUMSTACKSURFACES        2000
 #define MINSURFACES                     NUMSTACKSURFACES
-#define MAXSPANS                        3000
+#define MAXSPANS                        6000
 
 // flags in finalvert_t.flags
 #define ALIAS_LEFT_CLIP                         0x0001

r_main.c

@@ -19,6 +19,7 @@ GNU General Public License for more details.
 //#include "beamdef.h"
 //#include "particledef.h"
 #include "entity_types.h"
+#include "mod_local.h"
 
 #define IsLiquidContents( cnt )	( cnt == CONTENTS_WATER || cnt == CONTENTS_SLIME || cnt == CONTENTS_LAVA )
 
@@ -1230,6 +1231,125 @@ void R_EdgeDrawing (void)
 	R_ScanEdges ();
 }
 
+#if 0
+/*
+===============
+R_MarkLeaves
+
+Mark the leaves and nodes that are in the PVS for the current leaf
+===============
+*/
+void R_MarkLeaves( void )
+{
+	qboolean	novis = false;
+	qboolean	force = false;
+	mleaf_t	*leaf = NULL;
+	mnode_t	*node;
+	vec3_t	test;
+	int	i;
+
+	if( !RI.drawWorld ) return;
+
+	/*if( FBitSet( r_novis->flags, FCVAR_CHANGED ) || tr.fResetVis )
+	{
+		// force recalc viewleaf
+		ClearBits( r_novis->flags, FCVAR_CHANGED );
+		tr.fResetVis = false;
+		RI.viewleaf = NULL;
+	}*/
+
+	VectorCopy( RI.pvsorigin, test );
+
+	if( RI.viewleaf != NULL )
+	{
+		// merge two leafs that can be a crossed-line contents
+		if( RI.viewleaf->contents == CONTENTS_EMPTY )
+		{
+			VectorSet( test, RI.pvsorigin[0], RI.pvsorigin[1], RI.pvsorigin[2] - 16.0f );
+			leaf = gEngfuncs.Mod_PointInLeaf( test, WORLDMODEL->nodes );
+		}
+		else
+		{
+			VectorSet( test, RI.pvsorigin[0], RI.pvsorigin[1], RI.pvsorigin[2] + 16.0f );
+			leaf = gEngfuncs.Mod_PointInLeaf( test, WORLDMODEL->nodes );
+		}
+
+		if(( leaf->contents != CONTENTS_SOLID ) && ( RI.viewleaf != leaf ))
+			force = true;
+	}
+
+	if( RI.viewleaf == RI.oldviewleaf && RI.viewleaf != NULL && !force )
+		return;
+
+	// development aid to let you run around
+	// and see exactly where the pvs ends
+	//if( sw_lockpvs->value ) return;
+
+	RI.oldviewleaf = RI.viewleaf;
+	tr.visframecount++;
+
+	if( RI.drawOrtho || !RI.viewleaf || !WORLDMODEL->visdata )
+		novis = true;
+
+	gEngfuncs.R_FatPVS( RI.pvsorigin, REFPVS_RADIUS, RI.visbytes, FBitSet( RI.params, RP_OLDVIEWLEAF ), novis );
+	if( force && !novis ) gEngfuncs.R_FatPVS( test, REFPVS_RADIUS, RI.visbytes, true, novis );
+
+	for( i = 0; i < WORLDMODEL->numleafs; i++ )
+	{
+		if( CHECKVISBIT( RI.visbytes, i ))
+		{
+			node = (mnode_t *)&WORLDMODEL->leafs[i+1];
+			do
+			{
+				if( node->visframe == tr.visframecount )
+					break;
+				node->visframe = tr.visframecount;
+				node = node->parent;
+			} while( node );
+		}
+	}
+}
+#else
+/*
+===============
+R_MarkLeaves
+===============
+*/
+void R_MarkLeaves (void)
+{
+	byte	*vis;
+	mnode_t	*node;
+	int		i;
+
+	if (r_oldviewcluster == r_viewcluster && !r_novis->value && r_viewcluster != -1)
+		return;
+
+	r_visframecount++;
+	r_oldviewcluster = r_viewcluster;
+
+	gEngfuncs.R_FatPVS( RI.pvsorigin, REFPVS_RADIUS, RI.visbytes, FBitSet( RI.params, RP_OLDVIEWLEAF ), false );
+	vis = RI.visbytes;
+
+	for (i = 0; i < WORLDMODEL->numleafs; i++)
+	{
+		if (vis[i>>3] & (1<<(i&7)))
+		{
+			node = (mnode_t *) &WORLDMODEL->leafs[i+1];
+			do
+			{
+				if (node->visframe == r_visframecount)
+					break;
+				node->visframe = r_visframecount;
+				node = node->parent;
+			} while (node);
+		}
+	}
+}
+
+
+
+#endif
+
 /*
 ================
 R_RenderScene
@@ -1257,7 +1377,7 @@ void R_RenderScene( void )
 //	R_SetupGL( true );
 	R_Clear( ~0 );
 
-	//R_MarkLeaves();
+	R_MarkLeaves();
 	R_DrawFog ();
 	// R_PushDlights (r_worldmodel); ??
 	R_CheckGLFog();	
@@ -1542,7 +1662,7 @@ qboolean R_Init()
 	//r_dspeeds = ri.Cvar_Get ("r_dspeeds", "0", 0);
 //	r_lightlevel = ri.Cvar_Get ("r_lightlevel", "0", 0);
 	//r_lerpmodels = ri.Cvar_Get( "r_lerpmodels", "1", 0 );
-	//r_novis = ri.Cvar_Get( "r_novis", "0", 0 );
+	r_novis = gEngfuncs.Cvar_Get( "r_novis", "0", 0, "" );
 
 	// create the window and set up the context
 	r_temppool = Mem_AllocPool( "ref_sw zone" );

r_misc.c

@@ -254,55 +254,65 @@ void R_ViewChanged (vrect_t *vr)
 
 	xOrigin = r_refdef.xOrigin;
 	yOrigin = r_refdef.yOrigin;
-	
+	#endif
+
+	int fov_x = 2.0 * tan (RI.fov_x/360*M_PI);
+	int fov_y = 2.0 * tan (RI.fov_y/360*M_PI);
 // values for perspective projection
 // if math were exact, the values would range from 0.5 to to range+0.5
 // hopefully they wll be in the 0.000001 to range+.999999 and truncate
 // the polygon rasterization will never render in the first row or column
 // but will definately render in the [range] row and column, so adjust the
 // buffer origin to get an exact edge to edge fill
-	xcenter = ((float)r_refdef.vrect.width * XCENTERING) +
-			r_refdef.vrect.x - 0.5;
-	aliasxcenter = xcenter * r_aliasuvscale;
-	ycenter = ((float)r_refdef.vrect.height * YCENTERING) +
-			r_refdef.vrect.y - 0.5;
-	aliasycenter = ycenter * r_aliasuvscale;
-
-	xscale = r_refdef.vrect.width / r_refdef.horizontalFieldOfView;
-	aliasxscale = xscale * r_aliasuvscale;
+	xcenter = ((float)gpGlobals->width * XCENTERING) +
+			0 - 0.5;
+	//aliasxcenter = xcenter * r_aliasuvscale;
+	ycenter = ((float)gpGlobals->height * YCENTERING) +
+			0 - 0.5;
+	//aliasycenter = ycenter * r_aliasuvscale;
+
+	xscale = gpGlobals->width * 1.5 / fov_x;
+	//aliasxscale = xscale * r_aliasuvscale;
 	xscaleinv = 1.0 / xscale;
 
 	yscale = xscale;
-	aliasyscale = yscale * r_aliasuvscale;
+	//aliasyscale = yscale * r_aliasuvscale;
 	yscaleinv = 1.0 / yscale;
-	xscaleshrink = (r_refdef.vrect.width-6)/r_refdef.horizontalFieldOfView;
+	xscaleshrink = (gpGlobals->width-6)/fov_x;
 	yscaleshrink = xscaleshrink;
 
+	// ???
+#define       PLANE_ANYZ              5
+
+
+	int xOrigin = r_origin[0];
+	int yOrigin = r_origin[1];
+
 // left side clip
-	screenedge[0].normal[0] = -1.0 / (xOrigin*r_refdef.horizontalFieldOfView);
+	screenedge[0].normal[0] = -1.0 / (xOrigin*fov_x);
 	screenedge[0].normal[1] = 0;
 	screenedge[0].normal[2] = 1;
 	screenedge[0].type = PLANE_ANYZ;
 	
 // right side clip
 	screenedge[1].normal[0] =
-			1.0 / ((1.0-xOrigin)*r_refdef.horizontalFieldOfView);
+			1.0 / ((1.0-xOrigin)*fov_x);
 	screenedge[1].normal[1] = 0;
 	screenedge[1].normal[2] = 1;
 	screenedge[1].type = PLANE_ANYZ;
 	
 // top side clip
 	screenedge[2].normal[0] = 0;
-	screenedge[2].normal[1] = -1.0 / (yOrigin*verticalFieldOfView);
+	screenedge[2].normal[1] = -1.0 / (yOrigin*fov_y);
 	screenedge[2].normal[2] = 1;
 	screenedge[2].type = PLANE_ANYZ;
 	
 // bottom side clip
 	screenedge[3].normal[0] = 0;
-	screenedge[3].normal[1] = 1.0 / ((1.0-yOrigin)*verticalFieldOfView);
+	screenedge[3].normal[1] = 1.0 / ((1.0-yOrigin)*fov_y);
 	screenedge[3].normal[2] = 1;	
 	screenedge[3].type = PLANE_ANYZ;
-#endif
+
 	for (i=0 ; i<4 ; i++)
 		VectorNormalize (screenedge[i].normal);
 

r_rast.c

@@ -226,6 +226,8 @@ void R_EmitEdge (mvertex_t *pv0, mvertex_t *pv1)
 	int		v, v2, ceilv0;
 	float	scale, lzi0, u0, v0;
 	int		side;
+	if( isnan( pv0->position[1]) )
+		return;
 
 	if (r_lastvertvalid)
 	{
@@ -263,6 +265,13 @@ void R_EmitEdge (mvertex_t *pv0, mvertex_t *pv1)
 			v0 = gpGlobals->height;
 	
 		ceilv0 = (int) ceil(v0);
+
+		if( ceilv0 < 0 )
+		{
+			printf("ceilv0 %d %f %f %f %f\n", ceilv0, v0, scale, transformed[1], ycenter );
+			printf("%f %f %f %f\n", world[1],modelorg[1], local[1], transformed[1] );
+
+		}
 	}
 
 	world = &pv1->position[0];
@@ -306,7 +315,7 @@ void R_EmitEdge (mvertex_t *pv0, mvertex_t *pv1)
 
 
 // create the edge
-	if (ceilv0 == r_ceilv1)
+	if (ceilv0 == r_ceilv1 || ceilv0 < 0 )
 	{
 	// we cache unclipped horizontal edges as fully clipped
 		if (cacheoffset != 0x7FFFFFFF)
@@ -330,6 +339,7 @@ void R_EmitEdge (mvertex_t *pv0, mvertex_t *pv1)
 	{
 	// trailing edge (go from p1 to p2)
 		v = ceilv0;
+		if( v < 0 )printf("v0 %d\n", v);
 		v2 = r_ceilv1 - 1;
 
 		edge->surfs[0] = surface_p - surfaces;
@@ -343,6 +353,7 @@ void R_EmitEdge (mvertex_t *pv0, mvertex_t *pv1)
 	// leading edge (go from p2 to p1)
 		v2 = ceilv0 - 1;
 		v = r_ceilv1;
+		if( v < 0 )printf("v1 %d\n", v);
 
 		edge->surfs[0] = 0;
 		edge->surfs[1] = surface_p - surfaces;
@@ -359,10 +370,12 @@ void R_EmitEdge (mvertex_t *pv0, mvertex_t *pv1)
 // it to incorrectly extend to the scan, and the extension of the line goes off
 // the edge of the screen
 // FIXME: is this actually needed?
-//	if (edge->u < r_refdef.vrect_x_adj_shift20)
-//		edge->u = r_refdef.vrect_x_adj_shift20;
-//	if (edge->u > r_refdef.vrectright_adj_shift20)
-//		edge->u = r_refdef.vrectright_adj_shift20;
+	int r = (gpGlobals->width<<20) + (1<<19) - 1;
+	int x = (1<<20) + (1<<19) - 1;
+	if (edge->u < x)
+		edge->u = x;
+	if (edge->u > r)
+		edge->u = r;
 
 //
 // sort the edge in normally
@@ -371,6 +384,11 @@ void R_EmitEdge (mvertex_t *pv0, mvertex_t *pv1)
 	if (edge->surfs[0])
 		u_check++;	// sort trailers after leaders
 
+	if( v < 0 )
+	{
+		printf("v %d\n", v);
+		v = 0;
+	}
 	if (!newedges[v] || newedges[v]->u >= u_check)
 	{
 		edge->next = newedges[v];

r_scan.c

@@ -23,7 +23,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "r_local.h"
 
-unsigned char	*r_turb_pbase, *r_turb_pdest;
+pixel_t	*r_turb_pbase, *r_turb_pdest;
 fixed16_t		r_turb_s, r_turb_t, r_turb_sstep, r_turb_tstep;
 int				*r_turb_turb;
 int				r_turb_spancount;
@@ -143,7 +143,7 @@ void Turbulent8 (espan_t *pspan)
 
 	do
 	{
-		r_turb_pdest = (unsigned char *)((byte *)d_viewbuffer +
+		r_turb_pdest = (d_viewbuffer +
 				(r_screenwidth * pspan->v) + pspan->u);
 
 		count = pspan->count;
@@ -271,7 +271,7 @@ void NonTurbulent8 (espan_t *pspan)
 	r_turb_sstep = 0;	// keep compiler happy
 	r_turb_tstep = 0;	// ditto
 
-	r_turb_pbase = (unsigned char *)cacheblock;
+	r_turb_pbase = cacheblock;
 
 	sdivz16stepu = d_sdivzstepu * 16;
 	tdivz16stepu = d_tdivzstepu * 16;
@@ -279,7 +279,7 @@ void NonTurbulent8 (espan_t *pspan)
 
 	do
 	{
-		r_turb_pdest = (unsigned char *)((byte *)d_viewbuffer +
+		r_turb_pdest = (d_viewbuffer +
 				(r_screenwidth * pspan->v) + pspan->u);
 
 		count = pspan->count;
@@ -401,7 +401,7 @@ D_DrawSpans16
 void D_DrawSpans16 (espan_t *pspan)
 {
 	int				count, spancount;
-	unsigned char	*pbase, *pdest;
+	pixel_t	*pbase, *pdest;
 	fixed16_t		s, t, snext, tnext, sstep, tstep;
 	float			sdivz, tdivz, zi, z, du, dv, spancountminus1;
 	float			sdivz8stepu, tdivz8stepu, zi8stepu;
@@ -417,7 +417,7 @@ void D_DrawSpans16 (espan_t *pspan)
 
 	do
 	{
-		pdest = (unsigned char *)((byte *)d_viewbuffer +
+		pdest = (d_viewbuffer +
 				(r_screenwidth * pspan->v) + pspan->u);
 
 		count = pspan->count;

r_surf.c

@@ -28,13 +28,13 @@ int				lightdelta, lightdeltastep;
 int				lightright, lightleftstep, lightrightstep, blockdivshift;
 unsigned		blockdivmask;
 void			*prowdestbase;
-unsigned char	*pbasesource;
+pixel_t	*pbasesource;
 int				surfrowbytes;	// used by ASM files
 unsigned		*r_lightptr;
 int				r_stepback;
 int				r_lightwidth;
 int				r_numhblocks, r_numvblocks;
-unsigned char	*r_source, *r_sourcemax;
+pixel_t	*r_source, *r_sourcemax;
 
 void R_DrawSurfaceBlock8_mip0 (void);
 void R_DrawSurfaceBlock8_mip1 (void);
@@ -188,18 +188,19 @@ R_DrawSurface
 */
 void R_DrawSurface (void)
 {
-	unsigned char	*basetptr;
+	pixel_t	*basetptr;
 	int				smax, tmax, twidth;
 	int				u;
 	int				soffset, basetoffset, texwidth;
 	int				horzblockstep;
-	unsigned char	*pcolumndest;
+	pixel_t	*pcolumndest;
 	void			(*pblockdrawer)(void);
 	image_t			*mt;
 
 	surfrowbytes = r_drawsurf.rowbytes;
 
 	mt = r_drawsurf.image;
+	r_drawsurf.surfmip = 0;
 	
 	r_source = mt->pixels[r_drawsurf.surfmip];
 	
@@ -219,7 +220,7 @@ void R_DrawSurface (void)
 
 //==============================
 
-	pblockdrawer = surfmiptable[r_drawsurf.surfmip];
+	pblockdrawer = surfmiptable[0];
 // TODO: only needs to be set when there is a display settings change
 	horzblockstep = blocksize;
 
@@ -272,7 +273,7 @@ R_DrawSurfaceBlock8_mip0
 void R_DrawSurfaceBlock8_mip0 (void)
 {
 	int				v, i, b, lightstep, lighttemp, light;
-	unsigned char	pix, *psource, *prowdest;
+	pixel_t	pix, *psource, *prowdest;
 
 	psource = pbasesource;
 	prowdest = prowdestbase;
@@ -281,11 +282,11 @@ void R_DrawSurfaceBlock8_mip0 (void)
 	{
 	// FIXME: make these locals?
 	// FIXME: use delta rather than both right and left, like ASM?
-		lightleft = r_lightptr[0];
-		lightright = r_lightptr[1];
-		r_lightptr += r_lightwidth;
-		lightleftstep = (r_lightptr[0] - lightleft) >> 4;
-		lightrightstep = (r_lightptr[1] - lightright) >> 4;
+		//lightleft = r_lightptr[0];
+		//lightright = r_lightptr[1];
+		//r_lightptr += r_lightwidth;
+		//lightleftstep = (r_lightptr[0] - lightleft) >> 4;
+		//lightrightstep = (r_lightptr[1] - lightright) >> 4;
 
 		for (i=0 ; i<16 ; i++)
 		{
@@ -297,14 +298,15 @@ void R_DrawSurfaceBlock8_mip0 (void)
 			for (b=15; b>=0; b--)
 			{
 				pix = psource[b];
-				prowdest[b] = ((unsigned char *)vid.colormap)
-						[(light & 0xFF00) + pix];
+				prowdest[b] = pix;
+						//((unsigned char *)vid.colormap)
+						//[(light & 0xFF00) + pix];
 				light += lightstep;
 			}
 	
 			psource += sourcetstep;
-			lightright += lightrightstep;
-			lightleft += lightleftstep;
+			//lightright += lightrightstep;
+			//lightleft += lightleftstep;
 			prowdest += surfrowbytes;
 		}
 
@@ -489,7 +491,7 @@ void R_InitCaches (void)
 	{
 		size = SURFCACHE_SIZE_AT_320X240;
 
-		pix = vid.width*vid.height;
+		pix =1920 * 1080 * 16;
 		if (pix > 64000)
 			size += (pix-64000)*3;
 	}		
@@ -543,10 +545,10 @@ surfcache_t     *D_SCAlloc (int width, int size)
 	surfcache_t             *new;
 	qboolean                wrapped_this_time;
 
-	if ((width < 0) || (width > 256))
+	if ((width < 0) )// || (width > 256))
 		gEngfuncs.Host_Error ("D_SCAlloc: bad cache width %d\n", width);
 
-	if ((size <= 0) || (size > 0x10000))
+	if ((size <= 0) || (size > 0x10000000))
 		gEngfuncs.Host_Error ("D_SCAlloc: bad cache size %d\n", size);
 	
 	size = (int)&((surfcache_t *)0)->data[size];
@@ -674,11 +676,10 @@ D_CacheSurface
 surfcache_t *D_CacheSurface (msurface_t *surface, int miplevel)
 {
 	surfcache_t     *cache;
-
 //
 // if the surface is animating or flashing, flush the cache
 //
-	r_drawsurf.image = R_GetTexture(R_TextureAnimation (surface->texinfo->texture->gl_texturenum));
+	r_drawsurf.image = R_GetTexture(R_TextureAnimation (surface)->gl_texturenum);
 
 	/// todo: port this
 	//r_drawsurf.lightadj[0] = r_newrefdef.lightstyles[surface->styles[0]].white*128;
@@ -715,7 +716,7 @@ surfcache_t *D_CacheSurface (msurface_t *surface, int miplevel)
 	if (!cache)     // if a texture just animated, don't reallocate it
 	{
 		cache = D_SCAlloc (r_drawsurf.surfwidth,
-						   r_drawsurf.surfwidth * r_drawsurf.surfheight);
+						   r_drawsurf.surfwidth * r_drawsurf.surfheight * 2);
 		CACHESPOT(surface)[miplevel] = cache;
 		cache->owner = &CACHESPOT(surface)[miplevel];
 		cache->mipscale = surfscale;