Add animated webp support (#20)
Co-authored-by: NRK <nrk@disroot.org> Co-authored-by: Stein Gunnar Bakkeby <bakkeby@gmail.com> Co-authored-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
This commit is contained in:
Sam Whitehead
NRK
parent
0e7ab7e5c3
commit
af98249b68
8
Makefile
8
Makefile
@ -30,9 +30,15 @@ ifeq ($(HAVE_LIBGIF), 1)
|
||||
else
|
||||
HAVE_LIBGIF = 0
|
||||
endif
|
||||
ifeq ($(HAVE_LIBWEBP), 1)
|
||||
OPTIONAL_LIBS += -lwebpdemux -lwebp
|
||||
else
|
||||
HAVE_LIBWEBP = 0
|
||||
endif
|
||||
|
||||
CPPFLAGS = -D_XOPEN_SOURCE=700 \
|
||||
-DHAVE_LIBGIF=$(HAVE_LIBGIF) -DHAVE_LIBEXIF=$(HAVE_LIBEXIF) \
|
||||
-DHAVE_LIBWEBP=$(HAVE_LIBWEBP) \
|
||||
-I/usr/include/freetype2 -I$(PREFIX)/include/freetype2
|
||||
|
||||
LDLIBS = -lImlib2 -lX11 -lXft -lfontconfig $(OPTIONAL_LIBS)
|
||||
@ -61,7 +67,7 @@ window.o: icon/data.h
|
||||
config.mk:
|
||||
@echo "GEN $@"
|
||||
@echo "# 0 = disable, 1 = enable" > config.mk
|
||||
@for lib in exif gif; do \
|
||||
@for lib in exif gif webp; do \
|
||||
if echo "int main(){}" | $(CC) "-l$$lib" -o /dev/null -x c - 2>/dev/null ; then \
|
||||
echo "HAVE_LIB$$lib=1" | tr '[:lower:]' '[:upper:]' >> config.mk ; \
|
||||
fi \
|
||||
|
||||
@ -53,6 +53,7 @@ The following libraries are optional. They are automatically enabled if installe
|
||||
|
||||
* giflib : Used for animated gif playback.
|
||||
* libexif : Used for auto-orientation and exif thumbnails.
|
||||
* libwebp : Used for animated webp playback.
|
||||
|
||||
Please make sure to install the corresponding development packages in case that
|
||||
you want to build nsxiv on a distribution with separate runtime and development
|
||||
|
||||
150
image.c
150
image.c
@ -36,6 +36,12 @@
|
||||
enum { DEF_GIF_DELAY = 75 };
|
||||
#endif
|
||||
|
||||
#if HAVE_LIBWEBP
|
||||
#include <webp/decode.h>
|
||||
#include <webp/demux.h>
|
||||
enum { DEF_WEBP_DELAY = 75 };
|
||||
#endif
|
||||
|
||||
float zoom_min;
|
||||
float zoom_max;
|
||||
|
||||
@ -297,6 +303,135 @@ bool img_load_gif(img_t *img, const fileinfo_t *file)
|
||||
}
|
||||
#endif /* HAVE_LIBGIF */
|
||||
|
||||
|
||||
#if HAVE_LIBWEBP
|
||||
bool is_webp(const char *path)
|
||||
{
|
||||
/* The size (in bytes) of the largest amount of data required to verify a WebP image. */
|
||||
enum { max = 30 };
|
||||
const unsigned char fmt[max];
|
||||
bool ret = false;
|
||||
FILE *f;
|
||||
|
||||
if ((f = fopen(path, "rb")) != NULL) {
|
||||
if (fread((unsigned char *) fmt, 1, max, f) == max)
|
||||
ret = WebPGetInfo(fmt, max, NULL, NULL);
|
||||
fclose(f);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* fframe img
|
||||
* NULL NULL = do nothing
|
||||
* x NULL = load the first frame as an Imlib_Image
|
||||
* NULL x = load all frames into img->multi.
|
||||
*/
|
||||
bool img_load_webp(const fileinfo_t *file, Imlib_Image *fframe, img_t *img)
|
||||
{
|
||||
FILE *webp_file;
|
||||
WebPData data;
|
||||
data.bytes = NULL;
|
||||
|
||||
Imlib_Image im = NULL;
|
||||
struct WebPAnimDecoderOptions opts;
|
||||
WebPAnimDecoder *dec = NULL;
|
||||
struct WebPAnimInfo info;
|
||||
unsigned char *buf = NULL;
|
||||
int ts;
|
||||
const WebPDemuxer *demux;
|
||||
WebPIterator iter;
|
||||
unsigned long flags;
|
||||
unsigned int delay;
|
||||
bool err = false;
|
||||
|
||||
if ((err = fframe == NULL && img == NULL))
|
||||
goto fail;
|
||||
|
||||
if ((err = (webp_file = fopen(file->path, "rb")) == NULL)) {
|
||||
error(0, 0, "%s: Error opening webp image", file->name);
|
||||
goto fail;
|
||||
}
|
||||
fseek(webp_file, 0L, SEEK_END);
|
||||
data.size = ftell(webp_file);
|
||||
rewind(webp_file);
|
||||
data.bytes = emalloc(data.size);
|
||||
if ((err = fread((unsigned char *)data.bytes, 1, data.size, webp_file) != data.size)) {
|
||||
error(0, 0, "%s: Error reading webp image", file->name);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
/* Setup the WebP Animation Decoder */
|
||||
if ((err = !WebPAnimDecoderOptionsInit(&opts))) {
|
||||
error(0, 0, "%s: WebP library version mismatch", file->name);
|
||||
goto fail;
|
||||
}
|
||||
opts.color_mode = MODE_BGRA;
|
||||
/* NOTE: Multi-threaded decoding may cause problems on some system */
|
||||
opts.use_threads = true;
|
||||
dec = WebPAnimDecoderNew(&data, &opts);
|
||||
if ((err = (dec == NULL) || !WebPAnimDecoderGetInfo(dec, &info))) {
|
||||
error(0, 0, "%s: WebP parsing or memory error (file is corrupt?)", file->name);
|
||||
goto fail;
|
||||
}
|
||||
demux = WebPAnimDecoderGetDemuxer(dec);
|
||||
|
||||
if (img == NULL) { /* Only get the first frame and put it into fframe. */
|
||||
if ((err = !WebPAnimDecoderGetNext(dec, &buf, &ts))) {
|
||||
error(0, 0, "%s: Error loading first frame", file->name);
|
||||
goto fail;
|
||||
}
|
||||
*fframe = imlib_create_image_using_copied_data(
|
||||
info.canvas_width, info.canvas_height, (DATA32*)buf);
|
||||
imlib_context_set_image(*fframe);
|
||||
imlib_image_set_has_alpha(WebPDemuxGetI(demux, WEBP_FF_FORMAT_FLAGS) & ALPHA_FLAG);
|
||||
} else {
|
||||
/* Get global information for the image */
|
||||
flags = WebPDemuxGetI(demux, WEBP_FF_FORMAT_FLAGS);
|
||||
img->w = WebPDemuxGetI(demux, WEBP_FF_CANVAS_WIDTH);
|
||||
img->h = WebPDemuxGetI(demux, WEBP_FF_CANVAS_HEIGHT);
|
||||
img->multi.cap = info.frame_count;
|
||||
img->multi.sel = 0;
|
||||
img->multi.frames = emalloc(info.frame_count * sizeof(img_frame_t));
|
||||
|
||||
/* Load and decode frames (also works on images with only 1 frame) */
|
||||
img->multi.cnt = 0;
|
||||
while (WebPAnimDecoderGetNext(dec, &buf, &ts)) {
|
||||
im = imlib_create_image_using_copied_data(
|
||||
info.canvas_width, info.canvas_height, (DATA32*)buf);
|
||||
imlib_context_set_image(im);
|
||||
imlib_image_set_format("webp");
|
||||
/* Get an iterator of this frame - used for frame info (duration, etc.) */
|
||||
WebPDemuxGetFrame(demux, img->multi.cnt+1, &iter);
|
||||
imlib_image_set_has_alpha((flags & ALPHA_FLAG) == ALPHA_FLAG);
|
||||
/* Store info for this frame */
|
||||
img->multi.frames[img->multi.cnt].im = im;
|
||||
delay = iter.duration > 0 ? iter.duration : DEF_WEBP_DELAY;
|
||||
img->multi.frames[img->multi.cnt].delay = delay;
|
||||
img->multi.length += img->multi.frames[img->multi.cnt].delay;
|
||||
img->multi.cnt++;
|
||||
}
|
||||
WebPDemuxReleaseIterator(&iter);
|
||||
|
||||
if (img->multi.cnt > 1) {
|
||||
imlib_context_set_image(img->im);
|
||||
imlib_free_image();
|
||||
img->im = img->multi.frames[0].im;
|
||||
} else if (img->multi.cnt == 1) {
|
||||
imlib_context_set_image(img->multi.frames[0].im);
|
||||
imlib_free_image();
|
||||
img->multi.cnt = 0;
|
||||
}
|
||||
imlib_context_set_image(img->im);
|
||||
}
|
||||
imlib_image_set_format("webp");
|
||||
fail:
|
||||
if (dec != NULL)
|
||||
WebPAnimDecoderDelete(dec);
|
||||
free((unsigned char *)data.bytes);
|
||||
return !err;
|
||||
}
|
||||
#endif /* HAVE_LIBWEBP */
|
||||
|
||||
Imlib_Image img_open(const fileinfo_t *file)
|
||||
{
|
||||
struct stat st;
|
||||
@ -305,10 +440,21 @@ Imlib_Image img_open(const fileinfo_t *file)
|
||||
if (access(file->path, R_OK) == 0 &&
|
||||
stat(file->path, &st) == 0 && S_ISREG(st.st_mode))
|
||||
{
|
||||
#if HAVE_LIBWEBP
|
||||
if (is_webp(file->path))
|
||||
img_load_webp(file, &im, NULL);
|
||||
else
|
||||
#endif
|
||||
im = imlib_load_image(file->path);
|
||||
if (im != NULL) {
|
||||
imlib_context_set_image(im);
|
||||
#if HAVE_LIBWEBP
|
||||
const char *fmt;
|
||||
if ((fmt = imlib_image_format()) != NULL && !STREQ(fmt, "webp") &&
|
||||
imlib_image_get_data_for_reading_only() == NULL) {
|
||||
#else
|
||||
if (imlib_image_get_data_for_reading_only() == NULL) {
|
||||
#endif
|
||||
imlib_free_image();
|
||||
im = NULL;
|
||||
}
|
||||
@ -336,6 +482,10 @@ bool img_load(img_t *img, const fileinfo_t *file)
|
||||
#if HAVE_LIBGIF
|
||||
if (STREQ(fmt, "gif"))
|
||||
img_load_gif(img, file);
|
||||
#endif
|
||||
#if HAVE_LIBWEBP
|
||||
if (STREQ(fmt, "webp"))
|
||||
img_load_webp(file, NULL, img);
|
||||
#endif
|
||||
}
|
||||
img->w = imlib_image_get_width();
|
||||
|
||||
Loading…
Reference in New Issue
Block a user