16 int colorspace = CYCbCr; /* default for 8-bit displays: combine color rotation with dither */
18 ulong outchan = CMAP8;
27 char *show(int, char*, int);
34 if(new && getwindow(display, Refnone) < 0){
35 fprint(2, "jpg: can't reattach to window\n");
40 r = insetrect(screen->clipr, Edge+Border);
41 r.max.x = r.min.x+Dx(image->r);
42 r.max.y = r.min.y+Dy(image->r);
43 border(screen, r, -Border, nil, ZP);
44 draw(screen, r, image, nil, image->r.min);
45 flushimage(display, 1);
51 fprint(2, "usage: jpg -39cdefFkJrtv -W winsize [file.jpg ...]\n");
56 main(int argc, char *argv[])
65 winsize = EARGF(usage());
67 case 'c': /* produce encoded, compressed, bitmap file; no display by default */
74 case 'd': /* suppress display of image */
77 case 'e': /* disable floyd-steinberg error diffusion */
81 Fflag++; /* make a movie */
82 fflag++; /* merge two fields per image */
85 fflag++; /* merge two fields per image */
87 case 'J': /* decode jpeg only; no display or remap (for debugging, etc.) */
90 case 'k': /* force black and white */
97 case '3': /* produce encoded, compressed, three-color bitmap file; no display by default */
100 case 't': /* produce encoded, compressed, true-color bitmap file; no display by default */
107 case 'v': /* force RGBV */
111 case 'y': /* leave it in CYCbCr; for debugging only */
115 case '9': /* produce plan 9, uncompressed, bitmap file; no display by default */
126 if(yflag==0 && dflag==0 && colorspace==CYCbCr){ /* see if we should convert right to RGB */
127 fd = open("/dev/screen", OREAD);
130 if(read(fd, buf, 12)==12 && chantodepth(strtochan(buf))>8)
138 err = show(0, "<stdin>", outchan);
140 for(i=0; i<argc; i++){
141 fd = open(argv[i], OREAD);
143 fprint(2, "jpg: can't open %s: %r\n", argv[i]);
146 err = show(fd, argv[i], outchan);
149 if((nineflag || cflag) && argc>1 && err==nil){
150 fprint(2, "jpg: exiting after one file\n");
159 vidmerge(Rawimage **aa1, Rawimage **aa2)
161 Rawimage **aao, *ao, *a1, *a2;
165 for (i = 0; aa1[i]; i++) {
170 fprint(2, "jpg: vidmerge: unequal lengths\n");
173 aao = realloc(aao, (i+2)*sizeof(Rawimage *));
175 fprint(2, "jpg: vidmerge: realloc\n");
179 ao = aao[i] = malloc(sizeof(Rawimage));
181 fprint(2, "jpg: vidmerge: realloc\n");
184 memcpy(ao, a1, sizeof(Rawimage));
185 if (!eqrect(a1->r , a2->r)){
186 fprint(2, "jpg: vidmerge: rects different in img %d\n", i);
189 if (a1->cmaplen != a2->cmaplen){
190 fprint(2, "jpg: vidmerge: cmaplen different in img %d\n", i);
193 if (a1->nchans != a2->nchans){
194 fprint(2, "jpg: vidmerge: nchans different in img %d\n", i);
197 if (a1->fields != a2->fields){
198 fprint(2, "jpg: vidmerge: fields different in img %d\n", i);
201 ao->r.max.y += Dy(ao->r);
202 ao->chanlen += ao->chanlen;
203 if (ao->chanlen != Dx(ao->r)*Dy(ao->r)){
204 fprint(2, "jpg: vidmerge: chanlen wrong %d != %d*%d\n",
205 ao->chanlen, Dx(ao->r), Dy(ao->r));
209 for (c = 0; c < ao->nchans; c++) {
212 ao->chans[c] = malloc(ao->chanlen);
216 for (col = 0; col < Dy(a1->r); col++) {
218 po += row, p1 += row;
220 po += row, p2 += row;
231 fprint(2, "jpg: vidmerge: unequal lengths\n");
238 show(int fd, char *name, int outc)
240 Rawimage **array, *r, *c;
247 if(Binit(&b, fd, OREAD) < 0)
250 rpt: array = Breadjpg(&b, colorspace);
251 if(array == nil || array[0]==nil){
252 fprint(2, "jpg: decode %s failed: %r\n", name);
258 a = Breadjpg(&b, colorspace);
259 if(a == nil || a[0]==nil){
260 fprint(2, "jpg: decode %s-2 failed: %r\n", name);
263 array = vidmerge(a, array);
271 if(!dflag && !inited){
272 if(initdraw(0, 0, 0) < 0){
273 fprint(2, "jpg: initdraw failed: %r\n");
277 einit(Ekeyboard|Emouse);
278 if(defaultcolor && screen->depth>8 && outchan==CMAP8)
283 c = torgbv(r, !eflag);
285 if(outchan==GREY8 || (r->chandesc==CY && threeflag==0)){
286 c = totruecolor(r, CY);
289 c = totruecolor(r, CRGB24);
292 fprint(2, "jpg: conversion of %s failed: %r\n", name);
296 if(c->chandesc == CY)
297 i = allocimage(display, c->r, GREY8, 0, 0);
299 i = allocimage(display, c->r, outchan, 0, 0);
301 fprint(2, "jpg: allocimage %s failed: %r\n", name);
304 if(loadimage(i, i->r, c->chans[0], c->chanlen) < 0){
305 fprint(2, "jpg: loadimage %s failed: %r\n", name);
312 for(j=0; j<r->nchans; j++)
319 if((ch=ekbd())=='q' || ch==0x7F || ch==0x04)
321 draw(screen, screen->clipr, display->white, nil, ZP);
326 chantostr(buf, outchan);
327 print("%11s %11d %11d %11d %11d ", buf,
328 c->r.min.x, c->r.min.y, c->r.max.x, c->r.max.y);
329 if(write(1, c->chans[0], c->chanlen) != c->chanlen){
330 fprint(2, "jpg: %s: write error %r\n", name);
334 if(writerawimage(1, c) < 0){
335 fprint(2, "jpg: %s: write error: %r\n", name);
340 for(j=0; j<r->nchans; j++)