diff options
| -rw-r--r-- | terms.c | 87 |
1 files changed, 87 insertions, 0 deletions
@@ -484,6 +484,89 @@ put_image_osc5379(char *url, int x, int y, int w, int h, int sx, int sy, int sw, MOVE(Currentbuf->cursorY,Currentbuf->cursorX); } +static void +save_gif(const char *path, u_char *header, size_t header_size, u_char *body, size_t body_size) +{ + int fd; + + if ((fd = open(path, O_WRONLY|O_CREAT, 0600)) >= 0) { + write(fd, header, header_size) ; + write(fd, body, body_size) ; + write(fd, "\x3b" , 1) ; + close(fd) ; + } +} + +static u_char * +skip_gif_header(u_char *p) +{ + /* Header */ + p += 10; + + if (*(p) & 0x80) { + p += (3 * (2 << ((*p) & 0x7))); + } + p += 3; + + return p; +} + +static void +save_first_animation_frame(const char *path) +{ + int fd; + struct stat st; + u_char *header; + size_t header_size; + u_char *body; + u_char *p; + ssize_t len; + + if ((fd = open( path, O_RDONLY)) < 0) { + return 0; + } + + if (fstat( fd, &st) != 0 || ! (header = GC_malloc( st.st_size))){ + close( fd); + return 0; + } + + len = read(fd, header, st.st_size); + close(fd); + + /* Header */ + + if (len != st.st_size || strncmp(header, "GIF89a", 6) != 0) { + return 0; + } + + p = skip_gif_header(header); + header_size = p - header; + + /* Application Extension */ + if (p[0] == 0x21 && p[1] == 0xff) { + p += 19; + } + + /* Other blocks */ + body = NULL; + while (p + 2 < header + st.st_size) { + if (*(p++) == 0x21 && *(p++) == 0xf9 && *(p++) == 0x04) { + if( body) { + /* Graphic Control Extension */ + save_gif(path, header, header_size, body, p - 3 - body); + break; + } + else { + /* skip the first frame. */ + } + body = p - 3; + } + } + + return 1; +} + void put_image_sixel(char *url, int x, int y, int w, int h, int sx, int sy, int sw, int sh) { @@ -492,6 +575,10 @@ put_image_sixel(char *url, int x, int y, int w, int h, int sx, int sy, int sw, i MOVE(y,x); flush_tty(); + if (!strstr(url, "://")) { + save_first_animation_frame(url); + } + if ((pid = fork()) == 0) { char *argv[11]; char digit[2][11+1]; |