diff --git a/Makefile b/Makefile index da6c209f..8dc59f7b 100644 --- a/Makefile +++ b/Makefile @@ -15,17 +15,24 @@ HAVE_GIFLIB = 1 # enable features requiring libexif (-lexif) HAVE_LIBEXIF = 1 +# enable features requiring libwebp (-lwebp) +HAVE_LIBWEBP = 1 + cflags = -std=c99 -Wall -pedantic $(CFLAGS) cppflags = -I. $(CPPFLAGS) -D_XOPEN_SOURCE=700 \ -DHAVE_GIFLIB=$(HAVE_GIFLIB) -DHAVE_LIBEXIF=$(HAVE_LIBEXIF) \ + -DHAVE_LIBWEBP=$(HAVE_LIBWEBP) \ -I/usr/include/freetype2 -I$(PREFIX)/include/freetype2 lib_exif_0 = lib_exif_1 = -lexif lib_gif_0 = lib_gif_1 = -lgif +lib_webp_0 = +lib_webp_1 = -lwebpdemux -lwebp ldlibs = $(LDLIBS) -lImlib2 -lX11 -lXft -lfontconfig \ - $(lib_exif_$(HAVE_LIBEXIF)) $(lib_gif_$(HAVE_GIFLIB)) + $(lib_exif_$(HAVE_LIBEXIF)) $(lib_gif_$(HAVE_GIFLIB)) \ + $(lib_webp_$(HAVE_LIBWEBP)) objs = autoreload_$(AUTORELOAD).o commands.o image.o main.o options.o \ thumbs.o util.o window.o diff --git a/image.c b/image.c index 9a9c531b..27e55839 100644 --- a/image.c +++ b/image.c @@ -36,6 +36,13 @@ enum { DEF_GIF_DELAY = 75 }; #endif +#if HAVE_LIBWEBP +#include +#include +enum { DEF_WEBP_DELAY = 75 }; +Imlib_Image load_webp_firstframe_im(const fileinfo_t *file); +#endif + float zoom_min; float zoom_max; @@ -138,7 +145,7 @@ bool img_load_gif(img_t *img, const fileinfo_t *file) if (img->multi.cap == 0) { img->multi.cap = 8; img->multi.frames = (img_frame_t*) - emalloc(sizeof(img_frame_t) * img->multi.cap); + emalloc(sizeof(img_frame_t) * img->multi.cap); } img->multi.cnt = img->multi.sel = 0; img->multi.length = 0; @@ -213,10 +220,10 @@ bool img_load_gif(img_t *img, const fileinfo_t *file) for (i = 0; i < sh; i++) { for (j = 0; j < sw; j++) { if (i < y || i >= y + h || j < x || j >= x + w || - rows[i-y][j-x] == transp) + rows[i-y][j-x] == transp) { if (prev_frame != NULL && (prev_disposal != 2 || - i < py || i >= py + ph || j < px || j >= px + pw)) + i < py || i >= py + ph || j < px || j >= px + pw)) { *ptr = prev_frame[i * sw + j]; } else { @@ -257,8 +264,8 @@ bool img_load_gif(img_t *img, const fileinfo_t *file) if (img->multi.cnt == img->multi.cap) { img->multi.cap *= 2; img->multi.frames = (img_frame_t*) - erealloc(img->multi.frames, - img->multi.cap * sizeof(img_frame_t)); + erealloc(img->multi.frames, + img->multi.cap * sizeof(img_frame_t)); } img->multi.frames[img->multi.cnt].im = im; delay = img->multi.framedelay > 0 ? img->multi.framedelay : delay; @@ -293,14 +300,223 @@ bool img_load_gif(img_t *img, const fileinfo_t *file) } #endif /* HAVE_GIFLIB */ + +#if HAVE_LIBWEBP +bool img_load_webp(img_t* img, const fileinfo_t* file) +{ + bool err = false; + FILE *webp_file; + size_t file_size; + WebPData data; + + Imlib_Image im = NULL; + struct WebPAnimDecoderOptions opts; + WebPAnimDecoder *dec; + struct WebPAnimInfo info; + uint8_t *buf = NULL; + int ts; + const WebPDemuxer *demux; + WebPIterator iter; + uint32_t flags; + uint32_t delay; + + // Check if file exists (and we are able to read it) + if (access(file->path, R_OK) == -1) { + error(0, 0, "%s: Error opening webp image", file->name); + return false; + } + // Open the file + if ((webp_file = fopen(file->path, "rb")) == NULL) { + error(0, 0, "%s: Error opening webp image", file->name); + return false; + } + // Get the file size + fseek(webp_file, 0L, SEEK_END); + file_size = ftell(webp_file); + rewind(webp_file); + // Read the whole file into memory + data.bytes = emalloc(file_size); + data.size = file_size; + if (fread((uint8_t*)data.bytes, 1, file_size, webp_file) != file_size) { + error(0, 0, "%s: Error opening webp image", file->name); + free((uint8_t*)data.bytes); + return false; + } + + // Setup the WebP Animation Decoder + if (!WebPAnimDecoderOptionsInit(&opts)) { + // Version mismatch in WebP library + error(0, 0, "%s: Error opening webp image", file->name); + free((uint8_t*)data.bytes); + return false; + } + opts.color_mode = MODE_BGRA; + // This could cause problems on some systems and will require more testing + // than I can do (multithreaded decoding) + opts.use_threads = true; + if ((dec = WebPAnimDecoderNew(&data, &opts)) == NULL) { + // Parsing error, invalid operation, or memory error + error(0, 0, "%s: Error opening webp image", file->name); + free((uint8_t*)data.bytes); + return false; + } + if (!WebPAnimDecoderGetInfo(dec, &info)) { + error(0, 0, "%s: Error opening webp image", file->name); + WebPAnimDecoderDelete(dec); + free((uint8_t*)data.bytes); + return false; + } + demux = WebPAnimDecoderGetDemuxer(dec); + + // 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->alpha = ALPHA_LAYER; + img->multi.cap = info.frame_count; + img->multi.sel = 0; + img->multi.frames = emalloc(info.frame_count * sizeof(img_frame_t)); + + // Load (and decode) the frames of the image (also works with images that + // have 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) > 0); + // 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++; + } + WebPAnimDecoderDelete(dec); + 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"); + + free((uint8_t*)data.bytes); + return !err; +} + +Imlib_Image load_webp_firstframe_im(const fileinfo_t *file) +{ + struct stat st; + + if (!file->name || !file->path) + return NULL; + if (!STREQ(strrchr(file->path, '.'), ".webp")) + return NULL; + if (access(file->path, R_OK) != 0 || stat(file->path, &st) != 0 || !S_ISREG(st.st_mode)) + return NULL; + + FILE *webp_file; + size_t file_size; + WebPData data; + + Imlib_Image im = NULL; + struct WebPAnimDecoderOptions opts; + WebPAnimDecoder *dec; + struct WebPAnimInfo info; + uint8_t *buf = NULL; + int ts; + + // Open the file + if ((webp_file = fopen(file->path, "rb")) == NULL) { + error(0, 0, "%s: Error opening webp image", file->name); + return NULL; + } + // Get the file size + fseek(webp_file, 0L, SEEK_END); + file_size = ftell(webp_file); + rewind(webp_file); + // Read the whole file into memory + data.bytes = emalloc(file_size); + if (fread((uint8_t*)data.bytes, 1, file_size, webp_file) != file_size) { + error(0, 0, "%s: Error opening webp image", file->name); + free((uint8_t*)data.bytes); + return NULL; + } + data.size = file_size; + + // Setup the WebP Animation Decoder + if (!WebPAnimDecoderOptionsInit(&opts)) { + // Version mismatch in WebP library + error(0, 0, "%s: Error opening webp image", file->name); + free((uint8_t*)data.bytes); + return NULL; + } + opts.color_mode = MODE_BGRA; + // This could cause problems on some systems and will require more testing + // than I can do (multithreaded decoding) + opts.use_threads = true; + if ((dec = WebPAnimDecoderNew(&data, &opts)) == NULL) { + // Parsing error, invalid operation, or memory error + error(0, 0, "%s: Error opening webp image", file->name); + free((uint8_t*)data.bytes); + return NULL; + } + if (!WebPAnimDecoderGetInfo(dec, &info)) { + error(0, 0, "%s: Error opening webp image", file->name); + WebPAnimDecoderDelete(dec); + free((uint8_t*)data.bytes); + return NULL; + } + + // Get the first frame + if (!WebPAnimDecoderGetNext(dec, &buf, &ts)) { + error(0, 0, "%s: Error opening webp image", file->name); + WebPAnimDecoderDelete(dec); + free((uint8_t*)data.bytes); + return NULL; + } + + 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"); + imlib_image_set_has_alpha(1); + + WebPAnimDecoderDelete(dec); + free((uint8_t*)data.bytes); + return im; +} +#endif /* HAVE_LIBWEBP */ + Imlib_Image img_open(const fileinfo_t *file) { struct stat st; Imlib_Image im = NULL; if (access(file->path, R_OK) == 0 && - stat(file->path, &st) == 0 && S_ISREG(st.st_mode)) + stat(file->path, &st) == 0 && S_ISREG(st.st_mode)) { +#if HAVE_LIBWEBP + im = load_webp_firstframe_im(file); + if (im != NULL) { + if (imlib_image_get_data_for_reading_only() == NULL) { + imlib_free_image(); + im = NULL; + } + } + if (im != NULL) return im; +#endif im = imlib_load_image(file->path); if (im != NULL) { imlib_context_set_image(im); @@ -332,6 +548,10 @@ bool img_load(img_t *img, const fileinfo_t *file) #if HAVE_GIFLIB if (STREQ(fmt, "gif")) img_load_gif(img, file); +#endif +#if HAVE_LIBWEBP + if (STREQ(fmt, "webp")) + img_load_webp(img, file); #endif } img->w = imlib_image_get_width(); @@ -443,8 +663,8 @@ void img_render(img_t *img) return; /* calculate source and destination offsets: - * - part of image drawn on full window, or - * - full image drawn on part of window + * - part of image drawn on full window, or + * - full image drawn on part of window */ if (img->x <= 0) { sx = -img->x / img->zoom + 0.5;