trying to do EXR io

Fonderie/single.c

@@ -99,7 +99,7 @@ fprintf(stderr, "   chainfilter      %d\n", chainfilter);
 fprintf(stderr, "   destination      %s\n", destination);
 
 if (k) {
-
+		/* XXX */
 	}
 
 return -1;

floatimg.h

@@ -4,7 +4,7 @@
  *	http://la.buvette.org/photos/cumul
  */
 
-#define		FIMG_VERSION	125
+#define		FIMG_VERSION	126
 
 /*
  *	in memory descriptor
@@ -42,6 +42,7 @@ typedef struct {
 #define FILE_TYPE_TIFF			5
 #define FILE_TYPE_FITS			6
 #define FILE_TYPE_BMP			7
+#define FILE_TYPE_EXR			8
 
 /*	lib/contrast.c			*/
 #define CONTRAST_NONE			0
@@ -175,6 +176,7 @@ int fimg_save_G_as_fits(FloatImg *src, char *outname, int flags);
 int fimg_save_B_as_fits(FloatImg *src, char *outname, int flags);
 
 int fimg_write_as_tiff(FloatImg *src, char *fname, int flags);
+int fimg_save_as_exr(FloatImg *src, char *outname, int flags);
 
 
 /*	mathematics operations 				*/

funcs/Makefile

@@ -5,7 +5,7 @@ DEPS = ../floatimg.h Makefile
 
 OBJS = fimg-png.o fimg-tiff.o misc-plots.o filtrage.o utils.o	\
 	fimg-libpnm.o rampes.o sfx0.o sfx1.o sfx2.o		\
-	geometry.o rotate.o					\
+	geometry.o rotate.o fimg-openexr.o			\
 	equalize.o fimg-fits.o saturation.o histogram.o		\
 	hsv.o classif.o contour2x2.o qsortrgb.o exporter.o	\
 	displacement.o dithering.o plasmas.o
@@ -42,6 +42,9 @@ fimg-bmp.o:		fimg-bmp.c $(DEPS)
 fimg-tiff.o:		fimg-tiff.c $(DEPS)
 	gcc $(COPT) -c $<
 
+fimg-openexr.o:		fimg-openexr.c $(DEPS)
+	gcc $(COPT) -c $<
+
 fimg-fits.o:		fimg-fits.c $(DEPS)
 	gcc $(COPT) -I/usr/include/cfitsio/ -c $<
 

funcs/exporter.c

@@ -53,6 +53,9 @@ switch(filetype) {
 	case FILE_TYPE_BMP:
 		fprintf(stderr, "%s: file type BMP not implemented\n", __func__);
 		foo = -666;
+	case FILE_TYPE_EXR:
+		fprintf(stderr, "%s: file type EXR experimental\n", __func__);
+		foo = fimg_save_as_exr(pic, fname, 0);
 	default:
 		foo = -1789;
 		break;

funcs/fimg-openexr.c

@@ -0,0 +1,30 @@
+/*
+ *		Lecture/ecriture des images EXR
+ *		-------------------------------
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../floatimg.h"
+
+extern int		verbosity;
+
+/* --------------------------------------------------------------------- */
+int fimg_save_as_exr(FloatImg *src, char *outname, int flags)
+{
+// #if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %p '%s' 0x%X )\n", __func__, src, outname, flags);
+// #endif
+
+if (FIMG_TYPE_RGB != src->type) {
+	fprintf(stderr, "%s: src bad type %d\n", __func__, src->type);
+	return -2;
+	}
+
+
+
+return -2;
+}
+/* --------------------------------------------------------------------- */

funcs/t.c

@@ -21,7 +21,7 @@ float		global_fvalue;
 /* --------------------------------------------------------------------- */
 enum nCmd { Equalize=1, Rotate, Sfx0, F3x3, MIRE, Wfits, Wpng, Wtiff,
 			Histo, Hsv, Classif, Ctr2x2, Qsortrgb,
-			Displace, ReadPNG, Plasmas, Hilight  };
+			Displace, ReadPNG, Plasmas, Hilight, OpenEXR  };
 typedef struct {
 	char	*name;
 	int	Cmd;
@@ -45,6 +45,7 @@ Command commands[] = {
 	{ "readpng",	ReadPNG		},
 	{ "plasma",	Plasmas		},
 	{ "hilight",	Hilight		},
+	{ "openexr",	OpenEXR		},
 	{ NULL,		0		}
 	} ;
 
@@ -198,6 +199,9 @@ switch(opt) {
 	case Hilight:
 		foo = essai_highlights(filename, outfile, 0, global_fvalue);
 		break;
+	case OpenEXR:
+		foo = essai_openexr(filename, outfile, 0x55);
+		break;
 	default:
 		fprintf(stderr, "'%s' is a bad command\n", command);
 		exit(1);

funcs/tests.c

@@ -16,6 +16,31 @@
 
 extern int		verbosity;
 
+/* --------------------------------------------------------------------- */
+/* nouveau 21 mars 2021 - rue d'Aragon */
+int essai_openexr(char *inf, char *outf, int flags)
+{
+FloatImg	src;
+int		foo;
+
+fprintf(stderr, ">>> %s ( '%s' '%s' 0x%X )\n", __func__,
+				inf, outf, flags);
+
+foo = fimg_create_from_dump(inf, &src);
+if (0 != foo) {
+	fprintf(stderr, "%s: err %d loading image '%s'\n", __func__,
+				foo, 		inf);
+	return foo;
+	}
+// fprintf(stderr, "image loaded at %p\n", &src);
+fimg_describe(&src, "for save EXR test");
+
+foo = fimg_save_as_exr(&src, outf, flags);
+
+fimg_destroy(&src);
+
+return -2;
+}
 /* --------------------------------------------------------------------- */
 /* nouveau 20 mars 2021 - rue d'Aragon */
 int essai_highlights(char *inf, char *outf, int ikoef, float fkoef)

funcs/tests.h

@@ -26,4 +26,5 @@ int essai_histogramme(char *fname, int k);
 int essai_lecture_png(char *fname, char *outfile, int notused);
 
 int essai_highlights(char *inf, char *outf, int ikoef, float fkoef);
+int essai_openexr(char *inf, char *outf, int flags);
 

funcs/utils.c

@@ -73,6 +73,7 @@ if (!strcasecmp(cptr, ".png" ))	return FILE_TYPE_PNG;
 if (!strcasecmp(cptr, ".tiff"))	return FILE_TYPE_TIFF;
 if (!strcasecmp(cptr, ".tif" ))	return FILE_TYPE_TIFF;
 if (!strcasecmp(cptr, ".fits"))	return FILE_TYPE_FITS;
+if (!strcasecmp(cptr, ".exr"))	return FILE_TYPE_EXR;
 
 return -1;
 }

lib/Makefile

@@ -2,7 +2,7 @@
 #	building the base library
 #
 
-COPT = -Wall -fpic -g   -no-pie -DDEBUG_LEVEL=1
+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		\