qbsp: fix texture offset on rotate_object, so they match in the editor. Added "-oldrottex" flag to revert to old behaviour. From txqbsp-xt.

man/qbsp.1

@@ -62,6 +62,9 @@ Space between leakfile points (default 2)
 Use different texture subdivision (default 240)
 .IP "\fB\-wadpath <dir>\fP"
 Search this directory for wad files (default is cwd)
+.IP "\fB\-oldrottex\fP"
+Use old method of texturing rotate_ brushes where the mapper aligns
+textures for the object at (0 0 0). 
 
 .SH "SPECIAL TEXTURE NAMES"
 .PP

qbsp/brush.c

@@ -423,6 +423,26 @@ CreateBrushFaces(hullbrush_t *hullbrush, const vec3_t rotate_offset,
 	    }
 	}
 
+        // account for texture offset, from txqbsp-xt
+        if (options.fixRotateObjTexture) {
+            const texinfo_t *texinfo = pWorldEnt->lumps[LUMP_TEXINFO].data;
+            texinfo_t texInfoNew;
+            vec3_t vecs[2];
+            int k, l;
+
+            memcpy(&texInfoNew, &texinfo[ mapface->texinfo ], sizeof(texInfoNew));
+            for (k=0; k<2; k++) {
+                for (l=0; l<3; l++) {
+                    vecs[k][l] = texinfo[ mapface->texinfo ].vecs[k][l];
+                }
+            }
+
+            texInfoNew.vecs[0][3] += DotProduct( rotate_offset, vecs[0] );
+            texInfoNew.vecs[1][3] += DotProduct( rotate_offset, vecs[1] );
+
+            mapface->texinfo = FindTexinfo( &texInfoNew );
+        }
+
 	VectorCopy(mapface->plane.normal, plane.normal);
 	VectorScale(mapface->plane.normal, mapface->plane.dist, point);
 	VectorSubtract(point, rotate_offset, point);

qbsp/map.c

@@ -146,7 +146,7 @@ FindTexinfo
 Returns a global texinfo number
 ===============
 */
-static int
+int
 FindTexinfo(texinfo_t *texinfo)
 {
     int index, j;
@@ -187,6 +187,9 @@ FindTexinfo(texinfo_t *texinfo)
 	return index;
     }
 
+    if (index >= pWorldEnt->lumps[LUMP_TEXINFO].count)
+        Error("Internal error: didn't allocate enough texinfos?");
+
     /* Allocate a new texinfo at the end of the array */
     *target = *texinfo;
     pWorldEnt->lumps[LUMP_TEXINFO].index++;
@@ -691,9 +694,12 @@ PreParseFile(const char *buf)
      */
     map.maxmiptex = map.maxfaces + 100;
     map.miptex = AllocMem(MIPTEX, map.maxmiptex, true);
+
+    /* Fixing textures on rotate_object requires an extra texinfo per face */
+    map.maxtexinfo = map.maxfaces * 2;
     texinfo = &pWorldEnt->lumps[LUMP_TEXINFO];
-    texinfo->data = AllocMem(BSP_TEXINFO, map.maxfaces, true);
-    texinfo->count = map.maxfaces;
+    texinfo->data = AllocMem(BSP_TEXINFO, map.maxtexinfo, true);
+    texinfo->count = map.maxtexinfo;
 }
 
 /*
@@ -720,7 +726,6 @@ LoadMapFile(void)
     parser_t parser;
     char *buf;
     int length;
-    void *pTemp;
     struct lumpdata *texinfo;
     mapentity_t *entity;
 
@@ -757,15 +762,7 @@ LoadMapFile(void)
 //              Message(msgWarning, warnNoPlayerCoop);
 
     texinfo = &pWorldEnt->lumps[LUMP_TEXINFO];
-    if (texinfo->index > texinfo->count)
-	Error("Internal error: didn't allocate enough texinfos?");
-    else if (texinfo->index < texinfo->count) {
-	pTemp = texinfo->data;
-	texinfo->data = AllocMem(BSP_TEXINFO, texinfo->index, true);
-	memcpy(texinfo->data, pTemp, texinfo->index * MemSize[BSP_TEXINFO]);
-	FreeMem(pTemp, BSP_TEXINFO, texinfo->count);
-	texinfo->count = texinfo->index;
-    }
+
     map.maxplanes = MAX_MAP_PLANES;
     map.planes = AllocMem(PLANE, map.maxplanes, true);
 

qbsp/qbsp.c

@@ -381,6 +381,7 @@ PrintOptions(void)
 	   "   -leakdist  [n]  Space between leakfile points (default 2)\n"
 	   "   -subdivide [n]  Use different texture subdivision (default 240)\n"
 	   "   -wadpath <dir>  Search this directory for wad files\n"
+	   "   -oldrottex      Use old rotate_ brush texturing aligned at (0 0 0)\n"
 	   "   sourcefile      .MAP file to process\n"
 	   "   destfile        .BSP file to output\n");
 
@@ -450,6 +451,7 @@ ParseOptions(char *szOptions)
     /* Default to the original Quake BSP Version... */
     options.BSPVersion = BSPVERSION;
     options.fTranswater = true;
+    options.fixRotateObjTexture = true;
 
     szEnd = szOptions + strlen(szOptions);
     szTok = GetTok(szOptions, szEnd);
@@ -522,7 +524,9 @@ ParseOptions(char *szOptions)
 		/* Remove trailing /, if any */
 		if (options.wadPath[strlen(options.wadPath) - 1] == '/')
 		    options.wadPath[strlen(options.wadPath) - 1] = 0;
-	    } else if (!strcasecmp(szTok, "?") || !strcasecmp(szTok, "help"))
+            } else if (!strcasecmp(szTok, "oldrottex")) {
+                options.fixRotateObjTexture = false;
+            } else if (!strcasecmp(szTok, "?") || !strcasecmp(szTok, "help"))
 		PrintOptions();
 	    else
 		Error("Unknown option '%s'", szTok);

qbsp/qbsp.h

@@ -447,6 +447,7 @@ typedef struct options_s {
     bool fOldleak;
     bool fNopercent;
     bool forceGoodTree;
+    bool fixRotateObjTexture;
     int BSPVersion;
     int dxSubdivide;
     int dxLeakDist;
@@ -502,6 +503,7 @@ typedef struct mapdata_s {
     int maxentities;
     int maxplanes;
     int maxmiptex;
+    int maxtexinfo;
 
     /* Number of items currently used */
     int numfaces;
@@ -531,6 +533,7 @@ extern mapentity_t *pWorldEnt;
 void LoadMapFile(void);
 
 int FindMiptex(const char *name);
+int FindTexinfo(texinfo_t *texinfo);
 
 void PrintEntity(const mapentity_t *entity);
 const char *ValueForKey(const mapentity_t *entity, const char *key);

qbsp/writebsp.c

@@ -726,6 +726,19 @@ FinishBSPFile(void)
     planes->data = newdata;
     planes->count = map.cTotal[LUMP_PLANES];
 
+    // Shrink texinfo lump
+    {
+        struct lumpdata *texinfo;
+        void *pTemp;
+
+        texinfo = &pWorldEnt->lumps[LUMP_TEXINFO];
+        pTemp = texinfo->data;
+        texinfo->data = AllocMem(BSP_TEXINFO, texinfo->index, true);
+        memcpy(texinfo->data, pTemp, texinfo->index * MemSize[BSP_TEXINFO]);
+        FreeMem(pTemp, BSP_TEXINFO, texinfo->count);
+        texinfo->count = texinfo->index;
+    }
+
     PrintBSPFileSizes();
     CleanBSPTexinfoFlags();
     WriteBSPFile();