Much nicer handling of compile-time features
- *_SUPPORT enabled in config.h - XLIBS helper app prints lib flags needed for current settings
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.gitignore
vendored
1
.gitignore
vendored
@ -1,3 +1,4 @@
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XLIBS
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config.h
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*.o
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sxiv
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23
Makefile
23
Makefile
@ -5,10 +5,6 @@ CFLAGS = -Wall -pedantic -O2
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LDFLAGS =
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LIBS = -lX11 -lImlib2
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XFLAGS =
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XLIBS =
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DESTDIR =
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PREFIX = /usr/local
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MANPREFIX = $(PREFIX)/share/man
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@ -22,33 +18,34 @@ options:
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@echo "CC = $(CC)"
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@echo "CFLAGS = $(CFLAGS)"
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@echo "LDFLAGS = $(LDFLAGS)"
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@echo "XFLAGS = $(XFLAGS)"
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@echo "XLIBS = $(XLIBS)"
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@echo "PREFIX = $(PREFIX)"
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.c.o:
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@echo "CC $<"
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@$(CC) $(CFLAGS) $(XFLAGS) -DVERSION=\"$(VERSION)\" -c -o $@ $<
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@$(CC) $(CFLAGS) -DVERSION=\"$(VERSION)\" -c -o $@ $<
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$(OBJ): Makefile config.h
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$(OBJ) XLIBS: Makefile config.h
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XLIBS: XLIBS.c
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@$(CC) $(CFLAGS) -o $@ $@.c
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config.h:
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@echo "creating $@ from config.def.h"
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@cp config.def.h $@
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sxiv: $(OBJ)
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sxiv: $(OBJ) XLIBS
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@echo "CC -o $@"
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@$(CC) $(LDFLAGS) -o $@ $(OBJ) $(LIBS) $(XLIBS)
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@$(CC) $(LDFLAGS) -o $@ $(OBJ) $(LIBS) $$(./XLIBS)
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clean:
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@echo "cleaning"
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@rm -f $(OBJ) sxiv sxiv-$(VERSION).tar.gz
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@rm -f $(OBJ) XLIBS sxiv sxiv-$(VERSION).tar.gz
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dist: clean
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@echo "creating dist tarball"
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@mkdir -p sxiv-$(VERSION)
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@cp LICENSE Makefile Makefile.netbsd README.md config.def.h \
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sxiv.1 $(SRC) sxiv-$(VERSION)
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@cp LICENSE Makefile README.md config.def.h sxiv.1 $(SRC) XLIBS.c \
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sxiv-$(VERSION)
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@tar -cf sxiv-$(VERSION).tar sxiv-$(VERSION)
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@gzip sxiv-$(VERSION).tar
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@rm -rf sxiv-$(VERSION)
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38
README.md
38
README.md
@ -8,7 +8,7 @@ Its code base should be kept small and clean to make it easy for you to dig
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into it and customize it for your needs.
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Features
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========
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--------
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* Basic image operations, e.g. zooming, panning, rotating
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* Customizable key and mouse button mappings (in *config.h*)
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@ -17,14 +17,13 @@ Features
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* Basic support for multi-frame images
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* Display image information in window title
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Additional features, that need to be included at compile-time--see section
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*Installation* on how to enable them:
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Additional features, that need to be enabled at compile-time (in *config.h*):
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* Play GIF animations
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* Load all frames from GIF files and play GIF animations
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* Auto-orientate JPEG images according to their EXIF tags
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Screenshots
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===========
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-----------
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Image mode:
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@ -35,7 +34,7 @@ Thumbnail mode:
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<img src="http://github.com/muennich/sxiv/raw/master/sample/thumb.png">
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Installation
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============
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------------
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sxiv is built using the commands:
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$ make
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@ -45,35 +44,16 @@ Please note, that the latter one requires root privileges.
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By default, sxiv is installed using the prefix "/usr/local", so the full path
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of the executable will be "/usr/local/bin/sxiv".
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You can install it into a directory of your choice by changing the second
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You can install sxiv into a directory of your choice by changing the second
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command to:
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# make PREFIX="/your/dir" install
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All build-time specific settings can be found in the file *config.h*. Please
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check and change them, so that they fit your needs.
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Additional features
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-------------------
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The XFLAGS and XLIBS macros control which additional features (non-default
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compile-time features) should be enabled and included during compilation.
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* GIF support:
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XFLAGS=-DGIF_SUPPORT, XLIBS=-lgif, requires: giflib
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* EXIF support:
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XFLAGS=-DEXIF_SUPPORT, XLIBS=-lexif, requires: libexif
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To enable GIF and EXIF support, the giflib and libexif libraries need to be
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installed on your system and you need to change the first build command to:
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$ make XFLAGS="-DGIF_SUPPORT -DEXIF_SUPPORT" XLIBS="-lgif -lexif"
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The build-time specific settings of sxiv can be found in the file *config.h*.
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Please check and change them, so that they fit your needs.
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Usage
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=====
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-----
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sxiv has two modes of operation: image and thumbnail mode. The default is
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image mode, in which only the current image is shown. In thumbnail mode a grid
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of small previews is displayed, making it easy to choose an image to open.
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23
XLIBS.c
Normal file
23
XLIBS.c
Normal file
@ -0,0 +1,23 @@
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#define _POSIX_C_SOURCE 200112L
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#define _FEATURE_CONFIG
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#include <stdio.h>
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#include "config.h"
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int n = 0;
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inline void put_lib_flag(const char *flag, int needed) {
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if (needed)
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printf("%s%s", n++ ? " " : "", flag);
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}
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int main(int argc, char **argv) {
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put_lib_flag("-lexif", EXIF_SUPPORT);
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put_lib_flag("-lgif", GIF_SUPPORT);
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if (n)
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printf("\n");
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return 0;
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}
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12
config.def.h
12
config.def.h
@ -1,3 +1,15 @@
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#ifdef _FEATURE_CONFIG
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/* auto-orientate jpeg files according to their exif tags?
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* (requires libexif [-lexif] to be installed)
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*/
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#define EXIF_SUPPORT 0
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/* load all frames from gif files and support gif animations?
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* (requires giflib [-lgif] to be installed)
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*/
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#define GIF_SUPPORT 0
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#endif
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#ifdef _WINDOW_CONFIG
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/* default window dimensions (overwritten via -g option): */
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29
image.c
29
image.c
@ -17,26 +17,27 @@
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*/
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#define _POSIX_C_SOURCE 200112L
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#define _FEATURE_CONFIG
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#define _IMAGE_CONFIG
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#include <string.h>
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#include <unistd.h>
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#ifdef EXIF_SUPPORT
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#include <libexif/exif-data.h>
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#endif
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#ifdef GIF_SUPPORT
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#include <stdlib.h>
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#include <sys/types.h>
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#include <gif_lib.h>
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#endif
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#include "image.h"
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#include "options.h"
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#include "util.h"
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#include "config.h"
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#if EXIF_SUPPORT
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#include <libexif/exif-data.h>
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#endif
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#if GIF_SUPPORT
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#include <stdlib.h>
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#include <sys/types.h>
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#include <gif_lib.h>
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#endif
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#define ZOOMDIFF(z1,z2) ((z1) - (z2) > 0.001 || (z1) - (z2) < -0.001)
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enum { MIN_GIF_DELAY = 50 };
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@ -70,7 +71,7 @@ void img_init(img_t *img, win_t *win) {
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}
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}
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#ifdef EXIF_SUPPORT
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#if EXIF_SUPPORT
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void exif_auto_orientate(const fileinfo_t *file) {
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ExifData *ed;
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ExifEntry *entry;
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@ -115,7 +116,7 @@ void exif_auto_orientate(const fileinfo_t *file) {
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}
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#endif /* EXIF_SUPPORT */
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#ifdef GIF_SUPPORT
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#if GIF_SUPPORT
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/* Originally based on, but in its current form merely inspired by Imlib2's
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* src/modules/loaders/loader_gif.c:load(), written by Carsten Haitzler.
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*/
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@ -301,11 +302,11 @@ bool img_load(img_t *img, const fileinfo_t *file) {
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/* avoid unused-but-set-variable warning */
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(void) fmt;
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#ifdef EXIF_SUPPORT
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#if EXIF_SUPPORT
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if (!strcmp(fmt, "jpeg"))
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exif_auto_orientate(file);
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#endif
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#ifdef GIF_SUPPORT
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#if GIF_SUPPORT
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if (!strcmp(fmt, "gif"))
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img_load_gif(img, file);
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#endif
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*/
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#define _POSIX_C_SOURCE 200112L
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#define _FEATURE_CONFIG
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#define _IMAGE_CONFIG
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#include <stdlib.h>
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@ -39,12 +40,12 @@ void print_usage() {
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void print_version() {
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printf("sxiv %s - Simple X Image Viewer\n", VERSION);
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printf("Additional features included (+) or not (-): %s, %s\n",
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#ifdef EXIF_SUPPORT
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#if EXIF_SUPPORT
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"+exif",
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#else
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"-exif",
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#endif
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#ifdef GIF_SUPPORT
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#if GIF_SUPPORT
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"+gif"
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#else
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"-gif"
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5
thumbs.c
5
thumbs.c
@ -17,6 +17,7 @@
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*/
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#define _POSIX_C_SOURCE 200112L
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#define _FEATURE_CONFIG
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#define _THUMBS_CONFIG
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#include <stdlib.h>
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@ -30,7 +31,7 @@
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#include "util.h"
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#include "config.h"
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#ifdef EXIF_SUPPORT
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#if EXIF_SUPPORT
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void exif_auto_orientate(const fileinfo_t*);
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#endif
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@ -252,7 +253,7 @@ bool tns_load(tns_t *tns, int n, const fileinfo_t *file,
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/* avoid unused-but-set-variable warning */
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(void) fmt;
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#ifdef EXIF_SUPPORT
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#if EXIF_SUPPORT
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if (!cache_hit && !strcmp(fmt, "jpeg"))
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exif_auto_orientate(file);
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#endif
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