27static void fix_colors(
char *imagedata,
size_t imagedata_size) {
28 for (
size_t i = 0; i < imagedata_size; i += 4) {
29 char blue = imagedata[i];
30 char red = imagedata[i + 2];
32 imagedata[i + 2] = blue;
36static size_t div_up(
size_t dividend,
size_t divisor) {
37 return dividend / divisor + (dividend % divisor != 0);
41 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
44 return div_up(original_size, 3) * 4;
52 while (data_i < size) {
55 unsigned char d0 =
data[data_i];
59 unsigned char d1 = data_i + 1 < size ?
data[data_i + 1] : 0;
63 if (size <= data_i + 1) {
67 unsigned char d2 = data_i + 2 < size ?
data[data_i + 2] : 0;
71 if (size <= data_i + 2) {
82 while (buf_i % 4 != 0) {
91 const size_t chunk_size = 4096;
97 int has_next_chunk =
offset + chunk_size <= size;
99 printf(
"\033_Ga=T,f=32,s=%d,v=%d%s%s;", width, height,
100 chunk_size < size ?
",m=1" :
"", is_compressed ?
",o=z" :
"");
102 printf(
"\033_Gm=%d;", has_next_chunk);
105 size_t this_chunk_size = has_next_chunk ? chunk_size : size -
offset;
106 fwrite(output +
offset, this_chunk_size, 1, stdout);
117 size_t imagedata_size = job->
width * job->
height * 4;
133static int zlib_compress(
char *source,
size_t source_len,
char **dest,
134 size_t *dest_len,
int level) {
138 strm.zalloc = Z_NULL;
140 strm.opaque = Z_NULL;
141 ret = deflateInit(&strm, level);
146 size_t dest_cap = deflateBound(&strm, source_len);
149 strm.avail_in = source_len;
150 strm.next_in = (Bytef *)source;
151 strm.next_out = (Bytef *)*dest;
152 strm.avail_out = dest_cap;
154 ret = deflate(&strm, Z_FINISH);
155 assert(strm.avail_in == 0);
156 assert(ret == Z_STREAM_END);
158 *dest_len = dest_cap - strm.avail_out;
160 (void)deflateEnd(&strm);
164static void zkitty_format(
GVJ_t *job) {
166 size_t imagedata_size = job->
width * job->
height * 4;
171 int ret = zlib_compress(imagedata, imagedata_size, &zbuf, &zsize, -1);
193 {1,
"kittyz:cairo", 1, &device_engine_zkitty, &device_features_zkitty},
Memory allocation wrappers that exit on failure.
static void * gv_alloc(size_t size)
swig_ptr_object_handlers offset
#define GVDEVICE_DOES_TRUECOLOR
static void kitty_format(GVJ_t *job)
static gvdevice_engine_t device_engine_kitty
static void fix_colors(char *imagedata, size_t imagedata_size)
static size_t base64_encoded_size(size_t original_size)
static size_t div_up(size_t dividend, size_t divisor)
static void kitty_write(char *data, size_t data_size, int width, int height, bool is_compressed)
static const char base64_alphabet[]
gvplugin_installed_t gvdevice_types_kitty[]
static char * base64_encode(const char *data, size_t size)
static gvdevice_features_t device_features_kitty
void(* format)(GVJ_t *firstjob)
graphs, nodes and edges info: Agraphinfo_t, Agnodeinfo_t and Agedgeinfo_t