From 8b185f02e23a2078a4c3c3aa67a61f09337c23db Mon Sep 17 00:00:00 2001
From: tth <sigfood@dinorama.fr>
Date: Thu, 12 Sep 2019 19:48:12 +0200
Subject: [PATCH] start of libnetpbm integration

---
 .gitignore          |  2 ++
 funcs/Makefile      | 13 ++++++++++--
 funcs/fimg-libpnm.c | 52 +++++++++++++++++++++++++++++++++++++++++++++
 funcs/t.c           | 25 ++++++++++++++++++++++
 4 files changed, 90 insertions(+), 2 deletions(-)
 create mode 100644 funcs/fimg-libpnm.c
 create mode 100644 funcs/t.c

diff --git a/.gitignore b/.gitignore
index 62cfed1..23951a4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,6 +21,8 @@ doc/*.idx
 doc/*.ilg
 doc/*.ind
 
+funcs/t
+
 v4l2/t
 v4l2/capture
 v4l2/grabvidseq
diff --git a/funcs/Makefile b/funcs/Makefile
index 40a9821..22648a9 100644
--- a/funcs/Makefile
+++ b/funcs/Makefile
@@ -1,8 +1,14 @@
 #---------------------------------------------------------------
 
-COPT = -Wall -fpic -g -no-pie -DDEBUG_LEVEL=0
+COPT = -Wall -fpic -g -no-pie -DDEBUG_LEVEL=1
 DEPS = ../floatimg.h Makefile
-OBJS = fimg-png.o fimg-tiff.o misc-plots.o filtrage.o utils.o
+OBJS = fimg-png.o fimg-tiff.o misc-plots.o filtrage.o utils.o	\
+	fimg-libpnm.o
+
+#---------------------------------------------------------------
+
+t:	t.c $(DEPS) ../libfloatimg.a
+	gcc $(COPT) $< ../libfloatimg.a -lnetpbm -o $@
 
 #---------------------------------------------------------------
 
@@ -15,6 +21,9 @@ fimg-png.o:		fimg-png.c $(DEPS)
 fimg-tiff.o:		fimg-tiff.c $(DEPS)
 	gcc $(COPT) -c $<
 
+fimg-libpnm.o:		fimg-libpnm.c $(DEPS)
+	gcc $(COPT) -c $<
+
 misc-plots.o:		misc-plots.c $(DEPS)
 	gcc $(COPT) -c $<
 
diff --git a/funcs/fimg-libpnm.c b/funcs/fimg-libpnm.c
new file mode 100644
index 0000000..decbd06
--- /dev/null
+++ b/funcs/fimg-libpnm.c
@@ -0,0 +1,52 @@
+/*
+ *		interface FloatImg <-> libpnm(3)
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include  <pam.h>        
+
+#include "../floatimg.h"
+
+extern int		verbosity;
+
+/* --------------------------------------------------------------------- */
+static void print_struct_pam(struct pam *ppam, char *txt)
+{
+
+printf("size                %d\n", ppam->size);
+
+printf("format              %d\n", ppam->format);
+printf("plainformat         %d\n", ppam->plainformat);
+printf("width & height      %d %d\n", ppam->width, ppam->height);
+printf("depth               %d\n", ppam->depth);
+printf("maxval              %lu\n", ppam->maxval);
+
+}
+/* --------------------------------------------------------------------- */
+
+int fimg_pnm_infos(char *fname)
+{
+struct pam		inpam;
+FILE			*fp;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( '%s' )\n", __func__, fname);
+#endif
+
+if (NULL==(fp=fopen(fname, "r"))) {
+	perror(fname);
+	exit(1);
+	}
+
+pnm_readpaminit(fp, &inpam, sizeof(inpam));
+
+print_struct_pam(&inpam, fname);
+
+fclose(fp);
+
+return 0;
+}
+/* --------------------------------------------------------------------- */
diff --git a/funcs/t.c b/funcs/t.c
new file mode 100644
index 0000000..7c20627
--- /dev/null
+++ b/funcs/t.c
@@ -0,0 +1,25 @@
+/*
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include  <pam.h>
+
+#include "../floatimg.h"
+
+int fimg_pnm_infos(char *);
+
+/* --------------------------------------------------------------------- */
+int main(int argc, char *argv[])
+{
+int		foo;
+
+pnm_init(&argc, argv);
+
+foo = fimg_pnm_infos("foo.pnm");
+fprintf(stderr, "got %d\n", foo);
+
+return 0;
+}
+/* --------------------------------------------------------------------- */