Removed exif support; made gif support non-optional

Makefile

@@ -3,7 +3,7 @@ VERSION = git-20120211
 CC      = gcc
 CFLAGS  = -ansi -Wall -pedantic -O2
 LDFLAGS =
-LIBS    = -lX11 -lImlib2
+LIBS    = -lX11 -lImlib2 -lgif
 
 PREFIX    = /usr/local
 MANPREFIX = $(PREFIX)/share/man
@@ -24,22 +24,19 @@ options:
 	@echo "CC $<"
 	@$(CC) $(CFLAGS) -DVERSION=\"$(VERSION)\" -c -o $@ $<
 
-$(OBJ) config: Makefile config.h
+$(OBJ): Makefile config.h
-
-config: config.c
-	@$(CC) $(CFLAGS) -o $@ $@.c
 
 config.h:
 	@echo "creating $@ from config.def.h"
 	@cp config.def.h $@
 
-sxiv:	$(OBJ) config
+sxiv:	$(OBJ)
 	@echo "CC -o $@"
-	@$(CC) $(LDFLAGS) -o $@ $(OBJ) $(LIBS) $$(./config -l)
+	@$(CC) $(LDFLAGS) -o $@ $(OBJ) $(LIBS)
 
 clean:
 	@echo "cleaning"
-	@rm -f $(OBJ) config sxiv sxiv-$(VERSION).tar.gz
+	@rm -f $(OBJ) sxiv sxiv-$(VERSION).tar.gz
 
 install: all
 	@echo "installing executable file to $(DESTDIR)$(PREFIX)/bin"

README.md

@@ -1,11 +1,11 @@
 sxiv: Simple (or small or suckless) X Image Viewer
 
-sxiv is an alternative to feh and qiv. Its only dependency besides xlib is
+sxiv is an alternative to feh and qiv. Its only dependencies besides xlib are
-imlib2. The primary goal for writing sxiv is to create an image viewer, which
+imlib2 and giflib. The primary goal for writing sxiv is to create an image
-only has the most basic features required for fast image viewing (the ones I
+viewer, which only has the most basic features required for fast image viewing
-want). It has vi key bindings and works nicely with tiling window managers.
+(the ones I want). It has vi key bindings and works nicely with tiling window
-Its code base should be kept small and clean to make it easy for you to dig
+managers.  Its code base should be kept small and clean to make it easy for you
-into it and customize it for your needs.
+to dig into it and customize it for your needs.
 
 Features
 --------
@@ -15,14 +15,9 @@ Features
 * Thumbnail mode: grid of selectable previews of all images
 * Ability to cache thumbnails for fast re-loading
 * Basic support for multi-frame images
+* Load all frames from GIF files and play GIF animations
 * Display image information in window title
 
-Additional features, that need to be enabled at compile-time (in *config.h*),
-because they depend on additional libraries:
-
-* Load all frames from GIF files and play GIF animations (requires giflib)
-* Auto-orientate JPEG images according to their EXIF tags (requires libexif)
-
 Screenshots
 -----------
 

config.c

@@ -1,38 +0,0 @@
-#define _POSIX_C_SOURCE 200112L
-#define _FEATURE_CONFIG
-
-#include <stdio.h>
-
-#include "config.h"
-
-#define QUOTE(m) #m
-#define PUT_MACRO(m) \
-	printf(" -D%s=%s", #m, QUOTE(m))
-
-int puts_if(const char *s, int c) {
-	return c ? printf(" %s", s) : 0;
-}
-
-int main(int argc, char **argv) {
-	int i;
-	unsigned int n = 0;
-
-	for (i = 1; i < argc; i++) {
-		switch ((argv[i][0] != '-' || argv[i][2] != '\0') ? -1 : argv[i][1]) {
-			case 'D':
-				n += PUT_MACRO(EXIF_SUPPORT);
-				n += PUT_MACRO(GIF_SUPPORT);
-				break;
-			case 'l':
-				n += puts_if("-lexif", EXIF_SUPPORT);
-				n += puts_if("-lgif",  GIF_SUPPORT);
-				break;
-			default:
-				fprintf(stderr, "%s: invalid argument: %s\n", argv[0], argv[i]);
-				return 1;
-		}
-	}
-	if (n > 0)
-		printf("\n");
-	return 0;
-}

config.def.h

@@ -1,15 +1,3 @@
-#ifdef _FEATURE_CONFIG
-
-/* auto-orientate jpeg files according to their exif tags?
- * (requires libexif [-lexif] to be installed)
- */
-#define EXIF_SUPPORT 0
-/* load all frames from gif files and support gif animations?
- * (requires giflib [-lgif] to be installed)
- */
-#define GIF_SUPPORT  0
-
-#endif
 #ifdef _WINDOW_CONFIG
 
 /* default window dimensions (overwritten via -g option): */

image.c

@@ -17,27 +17,19 @@
  */
 
 #define _POSIX_C_SOURCE 200112L
-#define _FEATURE_CONFIG
 #define _IMAGE_CONFIG
 
+#include <stdlib.h>
 #include <string.h>
+#include <sys/types.h>
 #include <unistd.h>
+#include <gif_lib.h>
 
 #include "image.h"
 #include "options.h"
 #include "util.h"
 #include "config.h"
 
-#if EXIF_SUPPORT
-#include <libexif/exif-data.h>
-#endif
-
-#if GIF_SUPPORT
-#include <stdlib.h>
-#include <sys/types.h>
-#include <gif_lib.h>
-#endif
-
 enum { MIN_GIF_DELAY = 50 };
 
 float zoom_min;
@@ -72,55 +64,6 @@ void img_init(img_t *img, win_t *win) {
 	img->multi.animate = false;
 }
 
-#if EXIF_SUPPORT
-void exif_auto_orientate(const fileinfo_t *file) {
-	ExifData *ed;
-	ExifEntry *entry;
-	int byte_order, orientation;
-
-	if ((ed = exif_data_new_from_file(file->path)) == NULL)
-		return;
-	entry = exif_content_get_entry(ed->ifd[EXIF_IFD_0], EXIF_TAG_ORIENTATION);
-	if (entry != NULL) {
-		byte_order = exif_data_get_byte_order(ed);
-		orientation = exif_get_short(entry->data, byte_order);
-	}
-	exif_data_unref(ed);
-	if (entry == NULL)
-		return;
-
-	switch (orientation) {
-		case 5:
-			imlib_image_orientate(1);
-		case 2:
-			imlib_image_flip_vertical();
-			break;
-
-		case 3:
-			imlib_image_orientate(2);
-			break;
-
-		case 7:
-			imlib_image_orientate(1);
-		case 4:
-			imlib_image_flip_horizontal();
-			break;
-
-		case 6:
-			imlib_image_orientate(1);
-			break;
-
-		case 8:
-			imlib_image_orientate(3);
-			break;
-	}
-}
-#endif /* EXIF_SUPPORT */
-
-#if GIF_SUPPORT
-/* Originally based on, but in its current form merely inspired by Imlib2's
- * src/modules/loaders/loader_gif.c:load(), written by Carsten Haitzler.
- */
 bool img_load_gif(img_t *img, const fileinfo_t *file) {
 	GifFileType *gif;
 	GifRowType *rows = NULL;
@@ -290,7 +233,6 @@ bool img_load_gif(img_t *img, const fileinfo_t *file) {
 
 	return !err;
 }
-#endif /* GIF_SUPPORT */
 
 bool img_load(img_t *img, const fileinfo_t *file) {
 	const char *fmt;
@@ -312,14 +254,8 @@ bool img_load(img_t *img, const fileinfo_t *file) {
 		warn("could not open image: %s", file->name);
 		return false;
 	}
-#if EXIF_SUPPORT
-	if (STREQ(fmt, "jpeg"))
-		exif_auto_orientate(file);
-#endif
-#if GIF_SUPPORT
 	if (STREQ(fmt, "gif"))
 		img_load_gif(img, file);
-#endif
 
 	img->w = imlib_image_get_width();
 	img->h = imlib_image_get_height();

options.c

@@ -17,7 +17,6 @@
  */
 
 #define _POSIX_C_SOURCE 200112L
-#define _FEATURE_CONFIG
 #define _IMAGE_CONFIG
 
 #include <stdlib.h>
@@ -39,18 +38,6 @@ void print_usage(void) {
 
 void print_version(void) {
 	printf("sxiv %s - Simple X Image Viewer\n", VERSION);
-	printf("Additional features included (+) or not (-): %s, %s\n",
-#if EXIF_SUPPORT
-	       "+exif",
-#else
-	       "-exif",
-#endif
-#if GIF_SUPPORT
-	       "+gif"
-#else
-	       "-gif"
-#endif
-	      );
 }
 
 void parse_options(int argc, char **argv) {

thumbs.c

@@ -17,7 +17,6 @@
  */
 
 #define _POSIX_C_SOURCE 200112L
-#define _FEATURE_CONFIG
 #define _THUMBS_CONFIG
 
 #include <stdlib.h>
@@ -31,10 +30,6 @@
 #include "util.h"
 #include "config.h"
 
-#if EXIF_SUPPORT
-void exif_auto_orientate(const fileinfo_t*);
-#endif
-
 const int thumb_dim = THUMB_SIZE + 10;
 char *cache_dir = NULL;
 
@@ -259,10 +254,6 @@ bool tns_load(tns_t *tns, int n, const fileinfo_t *file,
 		imlib_free_image_and_decache();
 		return false;
 	}
-#if EXIF_SUPPORT
-	if (!cache_hit && STREQ(fmt, "jpeg"))
-		exif_auto_orientate(file);
-#endif
 
 	w = imlib_image_get_width();
 	h = imlib_image_get_height();