preparing BMP export

floatimg.h

@@ -3,7 +3,7 @@
  *			ugly code from tTh
  */
 
-#define		FIMG_VERSION	117
+#define		FIMG_VERSION	118
 
 /*
  *	in memory descriptor
@@ -40,6 +40,7 @@ typedef struct {
 #define FILE_TYPE_TGA			4
 #define FILE_TYPE_TIFF			5
 #define FILE_TYPE_FITS			6
+#define FILE_TYPE_BMP			7
 
 /*	lib/contrast.c			*/
 #define CONTRAST_NONE			0
@@ -130,7 +131,7 @@ int fimg_mix_rgb_gray(FloatImg *img, float mix);
 int     fimg_shift_to_zero(FloatImg *s, FloatImg *d, float coefs[6]);
 
 /*	--> funcs/plasmas.c		*/
-int fimg_prototype_plasma(FloatImg *img, char *txt, int type);
+int fimg_prototype_plasma(FloatImg *img, double time, int type);
 
 /* * * * experimental ! */
 int fimg_classif_trial(FloatImg *src, FloatImg*dst, float fval, int notused);
@@ -182,6 +183,8 @@ int   fimg_load_from_png(char *filename, FloatImg *fimg);
 int   fimg_create_from_png(char *filename, FloatImg *fimg);
 int   fimg_save_as_png(FloatImg *src, char *outname, int flags);
 
+int   fimg_save_as_bmp(FloatImg *src, char *outname, int flags);
+
 int   fimg_test_pattern(FloatImg *fimg, int type, double dval);
 int   fimg_draw_something(FloatImg *fimg);
 

funcs/Makefile

@@ -1,6 +1,6 @@
 #---------------------------------------------------------------
 
-COPT = -Wall -fpic -g -no-pie -DDEBUG_LEVEL=1
+COPT = -Wall -fpic -g -no-pie -DDEBUG_LEVEL=0
 DEPS = ../floatimg.h Makefile
 
 OBJS = fimg-png.o fimg-tiff.o misc-plots.o filtrage.o utils.o	\
@@ -29,12 +29,15 @@ tests.o:	tests.c tests.h $(DEPS)
 ../libfloatimg.a:       $(OBJS)
 	$(AR) r $@ $?
 
-displacement.o:	displacement.c
+displacement.o:	displacement.c  $(DEPS)
 	gcc $(COPT) -c $<
 
 fimg-png.o:		fimg-png.c $(DEPS)
 	gcc $(COPT) -c $<
 
+fimg-bmp.o:		fimg-bmp.c $(DEPS)
+	gcc $(COPT) -c $<
+
 fimg-tiff.o:		fimg-tiff.c $(DEPS)
 	gcc $(COPT) -c $<
 

funcs/exporter.c

@@ -57,6 +57,10 @@ switch(filetype) {
 		foo = fimg_save_R_as_fits(pic, fname, 0);
 		break;
 
+	case FILE_TYPE_BMP:
+		fprintf(stderr, "%s: file type BMP not implemented\n", __func__);
+		foo = -666;
+
 	default:
 		foo = -1789;
 		break;

funcs/fimg-bmp.c

@@ -0,0 +1,21 @@
+/*
+ *		Lecture/ecriture des images BMP
+ *		-------------------------------
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../floatimg.h"
+
+extern int		verbosity;
+
+/* --------------------------------------------------------------------- */
+int fimg_save_as_bmp(FloatImg *src, char *outname, int flags)
+{
+
+
+return -2;
+}
+/* --------------------------------------------------------------------- */

funcs/fimg-png.c

@@ -170,7 +170,7 @@ unsigned char		*bytes, *bptr;
 double			maximum, fk;
 
 #if DEBUG_LEVEL
-fprintf(stderr, ">>> %-25s ( %p '%s' %x )\n", __func__, src, outname, flags);
+fprintf(stderr, ">>> %-25s ( %p '%s' 0x%x )\n", __func__, src, outname, flags);
 #endif
 
 /* convert ou floating datas to a byte/rgb array */

funcs/plasmas.c

@@ -0,0 +1,43 @@
+/*
+			PLASMAS
+
+	Inspiration Reep : https://blog.314r.net/2021/01/10/plasma/
+
+*/
+
+#include  <stdio.h>
+#include  <math.h>
+
+#include "../floatimg.h"
+
+extern int		verbosity;
+
+/* --------------------------------------------------------------------- */
+/* --------------------------------------------------------------------- */
+int fimg_prototype_plasma(FloatImg *img, double time, int type)
+{
+int		x, y;
+float		rgb[3];
+double		dx, dy;
+
+fprintf(stderr, ">>> %s ( %p %.3f %d )\n", __func__,
+				img, time, type);
+
+for (y=0; y<img->height; y++) {
+	dy = ((double)y/(double)img->height) - 0.5000;
+
+	for (x=0; x<img->width; x++) {
+		dx = ((double)x/(double)img->width) - 0.5000;
+
+		rgb[0] = sin(dx*10 + time) + 1.0;
+		rgb[1] = sin(dx*12 + time) + 1.0;
+		rgb[2] = sin(dx*14 + time) + 1.0;
+		fimg_put_rgb(img, x, y, rgb);
+
+		}
+
+	}
+
+return 0;
+}
+/* --------------------------------------------------------------------- */

funcs/t.c

@@ -171,7 +171,7 @@ switch(opt) {
 		foo = essai_lecture_png(filename, outfile, 0);
 		break;
 	case Plasmas:
-		foo = essai_plasma(filename, outfile, 1, 13.37);
+		foo = essai_plasma(filename, outfile, 1, global_fvalue);
 		fprintf(stderr, "we are all plasmafields\n");
 		break;
 	default:

funcs/tests.c

@@ -17,6 +17,8 @@
 extern int		verbosity;
 
 /* --------------------------------------------------------------------- */
+/*
+ */
 int essai_plasma(char *infile, char *outfile, int ikoef, float fkoef)
 {
 FloatImg	src, dst;
@@ -27,15 +29,24 @@ fprintf(stderr, ">>> %s ( '%s' '%s' %d %g )\n", __func__,
 
 /* if infile is loadable, use it for background */
 foo = fimg_create_from_dump(infile, &src);
-if (foo) {
-	fprintf(stderr, "%s: error loading '%s'\n", __func__, infile);
-	return foo;
+if (0 == foo) {
+	fprintf(stderr, "%s: image '%s' loaded\n", __func__, infile);
+	}
+else	{
+	/* make a fancy synthetic picture */
+	foo = fimg_create(&src, 800, 600, FIMG_TYPE_RGB);
 	}
-fprintf(stderr, "'%s' loaded\n", infile);
-fimg_printhead(&src);
 
+fimg_printhead(&src);
 fimg_clone(&src, &dst, 1);
 
+foo = fimg_prototype_plasma(&dst, fkoef, 0);
+if (foo)  {
+	fprintf(stderr, "%s: err %d on plasma proto\n", __func__, foo);
+	return -88;
+	}
+
+fimg_mul_3(&src, &dst, &dst);
 
 foo = fimg_export_picture(&dst, outfile, 0);
 if (foo) {

funcs/vroum.sh

@@ -7,7 +7,7 @@ device=/dev/video2
 maxi=59
 W="320"
 H="240"
-grabopt=" -s ${W}x${H}w -vv -d $device -p 0 -n 30
+grabopt=" -s ${W}x${H} -vv -u -d $device -p 0 -n 30
 0 -c none "
 
 mkdir /tmp/V
@@ -22,10 +22,10 @@ do
 
 	grabvidseq -$grabopt -o $src
 
-	fval=$(echo "$foo / $maxi" | bc -l)
-	echo $foo ' => ' $fval
+	fval=$(echo "$foo / $maxi * 13.56636" | bc -l)
+	echo ; echo $foo ' => ' $fval
 
-	./t -vv -k $fval -o $out classif $src
+	./t -vv -k $fval -o $out plasma $src
 
 	# fimgstats $out
 
@@ -33,7 +33,7 @@ do
 	echo $dst
 	montage $src $out -tile 1x2 -geometry $G $dst
 
-	sleep 2
+	sleep 55
 
 done