more work done on .OBJ import

.gitignore

@@ -5,9 +5,12 @@ libbubulles.a
 tbb
 gmon.out
 dummy-file
+toto
 
 tools/*.obj
+! tools/minimal.obj
 tools/read_obj
 tools/*.xyz
 tools/*.asc
-
+tools/toto
+tools/core

Makefile

@@ -10,7 +10,7 @@
 
 CC = gcc
 
-OPT = -Wall -g -pg -O3 -DDEBUG_LEVEL=0 -DMUST_ABORT=0
+OPT = -Wall -g -pg  -DDEBUG_LEVEL=0 -DMUST_ABORT=0
 
 libbubulles.a:	bubulles.o edges.o
 	ar r $@ $?

bubulles.c

@@ -84,7 +84,7 @@ fprintf(stderr, ">>> %s ( %p %d )\n", __func__, bbl, k);
 
 if (NULL == bbl->bbs) {
 	fprintf(stderr, "%s : array ptr is null\n", __func__);
-#ifdef MUST_ABORT
+#if MUST_ABORT
 	abort();
 #endif
 	return 1;
@@ -108,7 +108,7 @@ fprintf(stderr, ">>> %s ( %p %d )\n", __func__, where, idx);
 if ( (idx < 0) || (idx > where->fidx) ) {
 	fprintf(stderr, "%s : idx %d out of range on %p\n",
 				__func__, idx, where);
-#ifdef MUST_ABORT
+#if MUST_ABORT
 	abort();
 #endif
 	return NULL;
@@ -186,7 +186,7 @@ int	peek_bubulle(BBList *from, Bubulle *to, int idx)
 
 if (NULL==from) {
 	fprintf(stderr, "in %s, *from is null\n", __func__);
-#ifdef MUST_ABORT
+#if MUST_ABORT
 	abort();
 #endif
 	return -5;
@@ -216,7 +216,7 @@ Bubulle		*ar;
 
 if (NULL == bbl) {
 	fprintf(stderr, "in %s, *bbl is NULL\n", __func__);
-#ifdef MUST_ABORT
+#if MUST_ABORT
 	abort();
 #endif
 	return -5;
@@ -261,7 +261,7 @@ int		idx;
 
 if (NULL == what) {
 	fprintf(stderr, "SHIT HAPPEN IN %s\n", __func__);
-#ifdef MUST_ABORT
+#if MUST_ABORT
 	abort();
 #endif
 	return -5;
@@ -337,7 +337,7 @@ int print_bbox(BBox *bbox, int k)
 
 if (NULL==bbox) {
 	fprintf(stderr, "in %s, *bbox is NULL\n", __func__);
-#ifdef MUST_ABORT
+#if MUST_ABORT
 	abort();
 #endif
 	return -5;

bubulles.h

@@ -4,7 +4,7 @@
 
 /* --------------------------------------------------------------------- */
 
-#define LIBBB_VERSION		61
+#define LIBBB_VERSION		63
 
 #define SZ_BUBULLE_TEXT		81		/* arbitrary value */
 

edges.c

@@ -1,5 +1,6 @@
 /*
  *		edges.c
+ *	a part of libbubulle from tTh
  */
 
 #include   <stdio.h>
@@ -15,7 +16,9 @@ EdgeList * alloc_edgelist(char *name, int sz, int flags)
 EdgeList	*elptr;
 AnEdge		*array;
 
+#if DEBUG_LEVEL
 fprintf(stderr, ">>> %s ( '%s'  %d  0x%X )\n", __func__, name, sz, flags);
+#endif
 
 if (NULL==(elptr = calloc(1, sizeof(EdgeList)))) {
 	fprintf(stderr, "no mem available in %s\n", __func__);
@@ -44,8 +47,9 @@ return elptr;
 /* --------------------------------------------------------------------- */
 int free_edgelist(EdgeList *list, int k)
 {
-
+#if DEBUG_LEVEL
 fprintf(stderr, ">>> %s ( %p  0x%X )\n", __func__, list, k);
+#endif
 
 if (k) {
 	fprintf(stderr, "%s: k must be 0, was %d\n", __func__, k);
@@ -131,31 +135,39 @@ return 0;		/* NOT FOUND */
 int  print_edgelist_desc(EdgeList *list, int k)
 {
 
-fprintf(stderr, "--- edgelist '%s' at %p\n", list->name, list);
+fprintf(stderr, "------- edgelist '%s' at %p\n", list->name, list);
 
 if (k) {
 	fprintf(stderr, "%s: k must be 0, was %d\n", __func__, k);
 	return k;
 	}
 
-fprintf(stderr, "    array @             %p\n",     list->edges);
-fprintf(stderr, "    size                %8d\n",    list->size);
-fprintf(stderr, "    next free           %8d\n",    list->fidx);
-// fprintf(stderr, "    magic             0x%08X\n",   list->magic);
+fprintf(stderr, "\tarray @             %p\n",       list->edges);
+fprintf(stderr, "\tsize                %8d\n",      list->size);
+fprintf(stderr, "\tnext free           %8d\n",      list->fidx);
+fprintf(stderr, "\tmagic              0x%08lX\n",   list->magic);
 
 return 0;
 }
 /* --------------------------------------------------------------------- */
-int  print_the_edges(EdgeList *list, int k)
+int  print_the_edges(FILE *fp, EdgeList *list, int k)
 {
 int		foo;
 
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %p %d )\n", __func__, list, k);
+#endif
+
 if (k) {
 	fprintf(stderr, "In %s, k must be 0, was %d\n", __func__, k);
 	return k;
 	}
+
+fprintf(stderr, "    list.fidx = %d\n", list->fidx);
+
 for (foo=0; foo<list->fidx; foo++) {
-	printf("%d\t\t%5d %5d\n", foo, list->edges[foo].A, list->edges[foo].B);
+	fprintf(fp, "%6d\t\t%5d %5d\n", foo,
+			list->edges[foo].A, list->edges[foo].B);
 	}
 
 return -1;

edges.h

@@ -1,11 +1,13 @@
 /*
  *		edges.h
+ *	a part of libbubulle from tTh
  */
 
 /* --------------------------------------------------------------------- */
 
 typedef struct {
 	int		A, B;
+	short		burz;
 	} AnEdge;
 
 typedef struct {
@@ -27,6 +29,6 @@ int push_a_missing_edge(EdgeList *list, int p0, int p1);
 int 		is_edge_in_list(EdgeList *list, int p0, int p1);
 
 int  		print_edgelist_desc(EdgeList *list, int k);
-int  print_the_edges(EdgeList *list, int k);
+int  		print_the_edges(FILE *file, EdgeList *list, int k);
 
 /* --------------------------------------------------------------------- */

tbb.c

@@ -6,7 +6,7 @@
 
 #include  <stdio.h>
 #include  <stdlib.h>
-
+#include  <unistd.h>
 #include  "bubulles.h"
 #include  "edges.h"
 
@@ -27,19 +27,20 @@ print_edgelist_desc(list, 0);
 foo = push_an_edge(list, 13, 37);
 fprintf(stderr, "    push edge -> %d\n", foo);
 foo = push_an_edge(list, 24, 36);
+fprintf(stderr, "    push edge -> %d\n", foo);
 
-foo = print_the_edges(list, 0);
+foo = print_the_edges(stdout, list, 0);
 
 for (idx=0; idx<k; idx++) {
 	e0 = idx*7;	e1 = 5-idx;
 	foo = push_an_edge(list, e0, e1);
 	if (foo) {
-		fprintf(stderr, "push (%d, %d) -> %d\n", e0, e1, foo);
+		fprintf(stderr, "push %d (%d, %d) -> %d\n", idx, e0, e1, foo);
 		break;
 		}
 	}
 
-foo = print_the_edges(list, 0);
+foo = print_the_edges(stdout, list, 0);		puts("");
 
 foo = free_edgelist(list, 0);
 fprintf(stderr, "    free list -> %d\n", foo);
@@ -59,7 +60,7 @@ int		e0, e1;
 
 fprintf(stderr, "============== %s %7d ===========\n", __func__, k);
 
-list = alloc_edgelist("BIG!", k, 0);
+list = alloc_edgelist("gloubigoulba", k, 0);
 if (NULL == list) {
 	fprintf(stderr, "%s: epic fail\n", __func__);
 	abort();
@@ -75,7 +76,7 @@ for (idx=0; idx<k; idx++) {
 
 print_edgelist_desc(list, 0);
 
-foo = print_the_edges(list, 0);
+foo = print_the_edges(stdout, list, 0);		puts("");
 
 foo = free_edgelist(list, 0);
 fprintf(stderr, "    %s: free list -> %d\n", __func__, foo);
@@ -189,6 +190,8 @@ fprintf(stderr, "*** Bubulles Testing  %s %s\n\n", __DATE__, __TIME__);
 
 bubulles_version(0);
 
+srand(getpid());		/*	INIT RANDOM	*/
+
 #if (0)
 test_alloc_free(5);
 test_push_pop(20000);
@@ -197,9 +200,9 @@ foo = test_peek_poke(5000);
 fprintf(stderr, "test peek/poke -> %d\n", foo);
 #endif
 
-foo = essai_des_edges_A(25);
-fprintf(stderr, "test A des edges -> %d\n", foo);
-foo = essai_des_edges_B(10000);
+// XXX foo = essai_des_edges_A(25);
+// XXX fprintf(stderr, "test A des edges -> %d\n", foo);
+foo = essai_des_edges_B(5000);
 fprintf(stderr, "test B des edges -> %d\n", foo);
 
 return 0;

tools/.gitignore

@@ -0,0 +1,4 @@
+
+*.vertices
+*.edges
+

tools/Makefile

@@ -1,7 +1,7 @@
 
 BBFUNCS = ../libbubulles.a 
 
-OPT = -Wall -g -DDEBUG_LEVEL=1 -DMUST_ABORT
+OPT = -Wall -g -pg -DDEBUG_LEVEL=0 -DMUST_ABORT=0
 
 read_obj:	read_obj.c Makefile importobj.o $(BBFUNCS)
 	gcc $(OPT)  $<  importobj.o $(BBFUNCS) -o $@

tools/README.md

@@ -1,6 +1,7 @@
 
 # Importer des fichiers .OBJ
 
+
 ```
 v -1.177934647 -6.833468914 -73.19773865
 vn -0.1279897094 -0.4501263499 -0.8837448359
@@ -11,10 +12,10 @@ vn -0.05844723806 -0.09480132163 -0.993778944
 Première étape : en lisant les vertices, nous saurons positionner
 nos bubulles.
 
-Seconde étape : bien comprendre à quoi correspondent les
-lignes `vn` ? Des normales ?
+Attention, mon parser EXIGE des fichiers Unix bien conformés :
+c'est-à-dire que la dernière ligne du .obj DOIT être terminée
+par un newline !
 
-Et troisème étape, que faire des vertices ?
 
 Quatrième étape : aller vivre à la campagne ?
 

tools/importobj.c

@@ -16,6 +16,10 @@ extern int		verbosity;
 /* --------------------------------------------------------------------- */
 
 #define LINE_SZ			666
+
+static	BBList			*bublist;
+static	EdgeList		*edges;
+
 /* --------------------------------------------------------------------- */
 
 typedef struct	{
@@ -23,13 +27,14 @@ typedef struct	{
 	int		id;
 	} Tokens;
 
-enum token_id { T_comment=1, T_vertice, T_group, T_face };
+enum token_id { T_comment=1, T_vertice, T_group, T_face, T_vt };
 
 Tokens TokenList[] = {
 	{  "#",		T_comment	},
 	{  "v",		T_vertice	},
-	{  "g",		T_group		},	// to be verified
+	{  "g",		T_group		},	// to be verified !
 	{  "f",		T_face		},
+	{  "vt",	T_vt		},	// c'est quoi ce truc ?
 	{  NULL,	0		}
 	};
 
@@ -37,8 +42,8 @@ static int type_of_the_line(char *text)
 {
 Tokens		*token;
 
-#if DEBUG_LEVEL
-fprintf(stderr, "%s is searching '%s'\n", __func__, text);
+#if DEBUG_LEVEL > 1
+fprintf(stderr, "%s is searching for '%s'\n", __func__, text);
 #endif
 
 for (token=TokenList; token->token; token++) {
@@ -51,7 +56,7 @@ for (token=TokenList; token->token; token++) {
 return -1;
 }
 /* --------------------------------------------------------------------- */
-static int parse_vertice(char *cptr, float *px, float *py, float *pz)
+int parse_vertice(char *cptr, float *px, float *py, float *pz)
 {
 float		x, y, z;
 int		foo;
@@ -71,17 +76,66 @@ if (3 == foo) {
 return foo;
 }
 /* --------------------------------------------------------------------- */
-int try_to_read_an_OBJ_file(char *infname, char *outfname, int notused)
+/* new Mon 27 Mar 2023 12:08:18 AM CEST */
+int parse_face(char *cptr, int phy)
+{
+int		ix, foo;
+int		fa, fb;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( '%s' %d )\n", __func__, cptr, phy);
+#endif
+
+for (ix=0; ix<3; ix++) {
+	cptr = strtok(NULL, " ");
+	if (NULL == cptr) {
+		fprintf(stderr, "incomplete face in %s\n", __func__);
+		return -4;
+		}
+	if (2 != sscanf(cptr, "%d/%d", &fa, &fb)) {
+		fprintf(stderr, "%s: err sscanf\n", __func__);
+		exit(1);
+		return -3;
+		}
+	// XXX fprintf(stderr, "  %d  got %d %d\n", ix, fa, fb);
+
+	/*
+	 * yes, i've found 0-lenght edges, wtf ?
+	 */
+	if (fa == fb)	{
+		// fprintf(stderr, "'%s' dublicate\n", cptr);
+		continue;
+		}
+
+	foo = push_a_missing_edge(edges, fa, fb);
+	if (foo) {
+		fprintf(stderr, "%s: disaster #%d\n", __func__, foo);
+#if MUST_ABORT		
+		fflush(stderr), abort();
+#endif
+		return -2;
+		}
+	}
+
+#if DEBUG_LEVEL
+fprintf(stderr, "<<< %s\n", __func__);
+#endif
+
+return 0;
+}
+/* --------------------------------------------------------------------- */
+int try_to_read_an_OBJ_file(char *infname, char *file_vert, char *file_edges,
+				int notused)
 {
 FILE		*fpin;
 char		line[LINE_SZ+1], *cptr;
 float		x, y, z;
-int		foo, nbre, tokenid, fa, fb, ix;
-BBList          *bublist;
+int		foo, nbre, tokenid;
 Bubulle         bubulle;
 
+
 #if DEBUG_LEVEL
-fprintf(stderr, ">>> %s ( '%s' %d )\n", __func__, infname, notused);
+fprintf(stderr, ">>> %s ( '%s' %d )\n\n", __func__, infname, notused);
 #endif
 
 if (NULL==(fpin=fopen(infname, "r"))) {
@@ -89,13 +143,22 @@ if (NULL==(fpin=fopen(infname, "r"))) {
 	exit(1);
 	}
 
-bublist = alloc_bubulles(infname, 800000, 0);
+bublist = alloc_bubulles(infname, 500000, 0);
 if (NULL==bublist) {
-        fprintf(stderr, "err in %s, aborting...\n", __func__);
+        fprintf(stderr, "in %s, no mem for bubls, aborting...\n", __func__);
         abort();
         }
 print_bublist_desc(bublist, 0);
 
+edges = alloc_edgelist("krkrkr", 200000, 0);
+if (NULL==edges) {
+        fprintf(stderr, "no mem for edges in %s, aborting...\n", __func__);
+        abort();
+        }
+print_edgelist_desc(edges, 0);
+
+fprintf(stderr, "\n***********************************\n");
+
 nbre = 0;
 while(NULL!=(cptr=fgets(line, LINE_SZ, fpin))) {
 
@@ -106,7 +169,7 @@ while(NULL!=(cptr=fgets(line, LINE_SZ, fpin))) {
 		break;
 		}
 	line[strlen(line)-1] = '\0';		/* kill the newline */
-	if (verbosity>1) fprintf(stderr, "line read ===%s===\n", line);
+	if (verbosity>1) fprintf(stderr, "line read ==|%s|==\n", line);
 
 	cptr = strtok(line, " ");
 	if (NULL == cptr) {
@@ -127,49 +190,52 @@ while(NULL!=(cptr=fgets(line, LINE_SZ, fpin))) {
 		case T_vertice:
 			x = y = z = 0.0;
 			foo = parse_vertice(cptr, &x, &y, &z);
+			if (3!=foo) {
+				abort();
+				}
 			bubulle.p.x = x;
 			bubulle.p.y = y;
 			bubulle.p.z = z;
 			if (verbosity > 1) niceprint_bubulle(&bubulle, 0);
+			foo = push_bubulle(bublist, &bubulle);
+			if (foo) {
+				abort();
+				}
 			break;
 
 		case T_group:
 			cptr = strtok(NULL, " ");
-			fprintf(stderr, "Group:  %s\n", cptr);
+			fprintf(stderr, "\tGroup:  %s\n", cptr);
 			break;
 
 		case T_face:
-			fprintf(stderr, "Face A:  %s\n", cptr);
-			for (ix=0; ix<3; ix++) {
-			   cptr = strtok(NULL, " ");
-			   fprintf(stderr, "Piste %d:  %s\n", ix, cptr);
-			   if (2==sscanf(cptr, "%d/%d", &fa, &fb))
-			     fprintf(stderr, "  %d   %d %d\n", foo, fa, fb);
-			   else
-			      return -3;
-			   }
+			foo = parse_face(cptr, 0);
+			if (foo)  fprintf(stderr, "  '%s' parse face -> %d\n",
+							cptr, foo);
 			break;
 			 
 		default:
-			// fprintf(stderr, "token %d ?\n", tokenid);
+			// fprintf(stderr, "\ttoken %d ?\n", tokenid);
 			continue;		/* wtf ? */
 		}
 
-	foo = push_bubulle(bublist, &bubulle);
-	if (foo) {
-		fprintf(stderr, "*** %s: error %d on push\n", __func__, foo);
-		exit(1);
-		break;
-		}
 	nbre++;
 	}
 fclose(fpin);
 
+fprintf(stderr, "\n***********************************\n");
+
 if(verbosity) {
-	fprintf(stderr, "%s : %d vertices loaded\n", __func__, nbre);
+	fprintf(stderr, "in %s, %d vertices loaded\n", __func__, bublist->fidx);
 	}
 
-bubulles_to_data(outfname, NULL, bublist, 0);
+print_bublist_desc(bublist, 0);
+bubulles_to_data(file_vert, NULL, bublist, 0);
+free_bubulles(bublist, 0);
+
+print_edgelist_desc(edges, 0);
+print_the_edges(stdout, edges, 0);
+free_edgelist(edges, 0);
 
 return 0;
 }

tools/minimal.obj

@@ -0,0 +1,7 @@
+g minimal
+v 0 0 0
+v 1 0 0
+v 0 1 0
+v 0 0 1
+f 1/2, 2/3, 3/1
+f 0/1, 0/1, 0/2

tools/read_obj.c

@@ -4,23 +4,33 @@
 
 #include	<stdio.h>
 #include	<stdlib.h>
+#include	<libgen.h>		// for basename(3)
+
 #include	"../bubulles.h"
 
-int try_to_read_an_OBJ_file(char *fname, char *outfname, int notused);
-int	verbosity;
+int try_to_read_an_OBJ_file(char *fname,
+				char *outfname, char *file_edges,
+				int notused);
+
+
+int	verbosity = 0;
 
 int main(int argc, char *argv[])
 {
 int		foo;
+char		*fname;		/* see manpage basename(3) */
 
 if (2 != argc) {
 	bubulles_version(1);
 	exit(0);
 	}
 
-verbosity = 1;
+verbosity = 0;
 
-foo = try_to_read_an_OBJ_file(argv[1], "bubulles.asc", 0);
+fname = basename(argv[1]);
+fprintf (stderr, "input fname is '%s'\n", fname);
+
+foo = try_to_read_an_OBJ_file(argv[1], "bulles.vertices", "bulles.edges", 0);
 fprintf(stderr, "try to read '%s' -> %d\n", argv [1], foo);
 
 return 0;