some tests added...

lib/Makefile

@@ -2,7 +2,7 @@
 #	building the base library
 #
 
-COPT = -Wall -fpic -g -pg -no-pie -DDEBUG_LEVEL=0
+COPT = -Wall -fpic -g  -no-pie -DDEBUG_LEVEL=0
 
 OBJS = fimg-core.o fimg-pnm.o fimg-file.o fimg-math.o	\
 	fimg-timers.o operators.o fimg-2gray.o		\

lib/fimg-core.c

@@ -91,6 +91,11 @@ if ( ! fimg_type_is_valid(t) ) {
 	return -2;
 	}
 
+/*
+ *	what to do if we've got a descriptor for an image
+ *	already allocated ?
+*/
+
 memset(fimg, 0, sizeof(FloatImg));
 
 surface = w * h;

lib/fimg-file.c

@@ -163,14 +163,14 @@ fprintf(stderr, ">>> %-25s ( '%s' %p )\n", __func__, fname, head);
 fp = fopen(fname, "r");
 if (NULL==fp) {
 	perror(fname);
-	exit(1);
+	return -15;
 	}
 	
 foo = fread(&filehead, sizeof(FimgFileHead), 1, fp);  
 if (1 != foo) {
 	fprintf(stderr, "%s : short read\n", fname);
 	fclose(fp);
-	return -1;
+	return -16;
 	}
 #if DEBUG_LEVEL
 fprintf(stderr, "%s : got [ %d %d %d ] from '%s'\n", __func__,

lib/fimg-math.c

@@ -151,7 +151,7 @@ void  fimg_mul_cste(FloatImg *fi, float value)
 {
 int		nbre, idx;
 
-if (fi->type != FIMG_TYPE_RGB) {
+if ( (fi->type != FIMG_TYPE_RGB) && (fi->type != FIMG_TYPE_GRAY) ) {
 	fprintf(stderr, "%s : type %d invalide\n",
 				__func__, fi->type);
 	return;
@@ -183,6 +183,7 @@ if (fi->count < 1) {
 
 /*
  *		mmmm, is this real ?
+ *	how to accuratly check the value of 'I.fval' ?
  */
 coef = 1.0 / ((double)fi->count * (double)fi->fval);
 

lib/t.c

@@ -41,6 +41,50 @@ if (foo) {
 val = fimg_get_maxvalue(&A);
 fprintf(stderr, "AFTER  max pixel %f\n", val);
 
+fimg_destroy(&A);
+
+return 0;
+}
+/* ---------------------------------------------------------------- */
+#define  WI	1024
+#define  HI	768
+#define  KDEG	3.141592654		/* secret magic number */
+
+int essai_interpolate(int k)
+{
+FloatImg	A, B, C;
+int		foo;
+
+foo = fimg_create(&A, WI, HI, FIMG_TYPE_RGB);
+if (foo) {
+	fprintf(stderr, "%s err create A %d\n", __func__, foo);
+	return foo;
+	}
+fimg_hdeg_a(&A, KDEG);
+
+foo = fimg_create(&B, WI, HI, FIMG_TYPE_RGB);
+if (foo) {
+	fprintf(stderr, "%s err create B %d\n", __func__, foo);
+	return foo;
+	}
+fimg_vdeg_a(&B, KDEG);
+
+foo = fimg_create(&C, WI, HI, FIMG_TYPE_RGB);
+if (foo) {
+	fprintf(stderr, "%s err create C %d\n", __func__, foo);
+	return foo;
+	}
+
+foo = fimg_interpolate(&A, &B, &C, 0.5);
+if (foo) {
+	fprintf(stderr, "%s err interpolate %d\n", __func__, foo);
+	return foo;
+	}
+
+foo = fimg_save_as_pnm(&C, "interpolate.pnm", 0);
+
+fimg_destroy(&A);	fimg_destroy(&B);	fimg_destroy(&C);
+
 return 0;
 }
 /* ---------------------------------------------------------------- */
@@ -74,13 +118,14 @@ fimg_destroy(&gray);
 return 0;
 }
 /* ---------------------------------------------------------------- */
+#define TAILLE		1024
 
 int essai_clone_et_copy(int unused)
 {
 FloatImg	A, B, C;
 int		foo;
 
-foo = fimg_create(&A, 512, 512, FIMG_TYPE_RGB);
+foo = fimg_create(&A, TAILLE, TAILLE, FIMG_TYPE_RGB);
 if (foo) {
 	fprintf(stderr, "%s err create A %d\n", __func__, foo);
 	return foo;
@@ -90,8 +135,8 @@ if (foo) {
 	fprintf(stderr, "%s err drawing A %d\n", __func__, foo);
 	return foo;
 	}
-foo = fimg_save_as_pnm(&A, "A.pnm", 0);
 
+foo = fimg_save_as_pnm(&A, "A.pnm", 0);
 if (foo) {
 	fprintf(stderr, "%s : err %d on save_as_pnm\n", __func__, foo);
 	exit(1);
@@ -103,7 +148,7 @@ if (foo) {
 	return foo;
 	}
 
-foo = fimg_create(&C, 512, 512, FIMG_TYPE_RGB);
+foo = fimg_create(&C, TAILLE, TAILLE, FIMG_TYPE_RGB);
 if (foo) {
 	fprintf(stderr, "%s err create A %d\n", __func__, foo);
 	return foo;
@@ -115,9 +160,13 @@ if (foo) {
 	}
 foo = fimg_save_as_pnm(&C, "C.pnm", 0);
 
+fimg_destroy(&A); fimg_destroy(&B); fimg_destroy(&C);
 
 return 0;
 }
+
+#undef TAILLE
+
 /* ---------------------------------------------------------------- */
 
 int essai_contraste(char *fname)
@@ -127,38 +176,42 @@ FloatImg 	dessin, copy;
 double		maxi;
 
 foo = fimg_create_from_dump(fname, &dessin);
+if (foo) {
+	fprintf(stderr, "in %s, error %d loading '%s'\n",
+			__func__,	foo, fname);
+	return foo;
+	}
+
 foo = fimg_clone(&dessin, &copy, 0);
 
 maxi = (double)fimg_get_maxvalue(&dessin);
-fprintf(stderr, "image source   valeur maxi = %f\n", maxi);
+fprintf(stderr, "image source        valeur maxi = %f\n", maxi);
 
 fimg_power_2(&dessin, &copy, maxi);
 maxi = (double)fimg_get_maxvalue(&copy);
-fprintf(stderr, "apres  power_2  valeur maxi = %f\n", maxi);
+fprintf(stderr, "apres  power_2      valeur maxi = %f\n", maxi);
-fimg_dump_to_file(&copy, "power2.fimg", 0);
+fimg_save_as_pnm(&copy, "power2.pnm", 0);
 
 fimg_square_root(&dessin, &copy, maxi);
 maxi = (double)fimg_get_maxvalue(&copy);
 fprintf(stderr, "apres  square_root  valeur maxi = %f\n", maxi);
-fimg_dump_to_file(&copy, "squareroot.fimg", 0);
+fimg_save_as_pnm(&copy, "squareroot.pnm", 0);
 
 fimg_cos_01(&dessin, &copy, maxi);
 maxi = (double)fimg_get_maxvalue(&copy);
 fprintf(stderr, "apres  cos 01       valeur maxi = %f\n", maxi);
-fimg_dump_to_file(&copy, "cos_01.fimg", 0);
+fimg_save_as_pnm(&copy, "cos_01.pnm", 0);
 
 fimg_cos_010(&dessin, &copy, maxi);
 maxi = (double)fimg_get_maxvalue(&copy);
 fprintf(stderr, "apres  cos 010      valeur maxi = %f\n", maxi);
-fimg_dump_to_file(&copy, "cos_010.fimg", 0);
+fimg_save_as_pnm(&copy, "cos_010.pnm", 0);
 
-fimg_destroy(&dessin);
+fimg_destroy(&dessin);		fimg_destroy(&copy);
 
-return -1;
+return 0;
 }
 /* ---------------------------------------------------------------- */
-#define W 320
-#define H 240
 int main(int argc, char *argv[])
 {
 int		foo, opt;
@@ -178,5 +231,14 @@ if (verbosity) fimg_print_version(0);
 foo = essai_normalize();
 fprintf(stderr, "retour essai normalize -> %d\n", foo);
 
+foo = essai_contraste("quux.fimg");
+fprintf(stderr, "retour essai contraste -> %d\n", foo);
+
+foo = essai_clone_et_copy(0);
+fprintf(stderr, "retour essai clone'n'copy -> %d\n", foo);
+
+foo = essai_interpolate(0);
+fprintf(stderr, "retour essai interpolate -> %d\n", foo);
+
 return 0;
 }