2 76193d7c 2003-09-30 devnull * /dev/draw simulator -- handles the messages prepared by the draw library.
3 76193d7c 2003-09-30 devnull * Includes all the memlayer code even though most programs don't use it.
4 76193d7c 2003-09-30 devnull * This whole approach is overkill, but cpu is cheap and it keeps things simple.
7 76193d7c 2003-09-30 devnull #include <u.h>
8 76193d7c 2003-09-30 devnull #include <libc.h>
9 76193d7c 2003-09-30 devnull #include <draw.h>
10 76193d7c 2003-09-30 devnull #include <memdraw.h>
11 76193d7c 2003-09-30 devnull #include <memlayer.h>
13 76193d7c 2003-09-30 devnull #define NHASH (1<<5)
14 76193d7c 2003-09-30 devnull #define HASHMASK (NHASH-1)
16 76193d7c 2003-09-30 devnull extern void flushmemscreen(Rectangle);
18 76193d7c 2003-09-30 devnull typedef struct Client Client;
19 76193d7c 2003-09-30 devnull typedef struct Draw Draw;
20 76193d7c 2003-09-30 devnull typedef struct DImage DImage;
21 76193d7c 2003-09-30 devnull typedef struct DScreen DScreen;
22 76193d7c 2003-09-30 devnull typedef struct CScreen CScreen;
23 76193d7c 2003-09-30 devnull typedef struct FChar FChar;
24 76193d7c 2003-09-30 devnull typedef struct Refresh Refresh;
25 76193d7c 2003-09-30 devnull typedef struct Refx Refx;
26 76193d7c 2003-09-30 devnull typedef struct DName DName;
28 76193d7c 2003-09-30 devnull struct Draw
30 76193d7c 2003-09-30 devnull QLock lk;
31 76193d7c 2003-09-30 devnull int clientid;
32 76193d7c 2003-09-30 devnull int nclient;
33 76193d7c 2003-09-30 devnull Client* client[1];
34 76193d7c 2003-09-30 devnull int nname;
35 76193d7c 2003-09-30 devnull DName* name;
36 76193d7c 2003-09-30 devnull int vers;
37 76193d7c 2003-09-30 devnull int softscreen;
40 76193d7c 2003-09-30 devnull struct Client
42 76193d7c 2003-09-30 devnull /*Ref r;*/
43 76193d7c 2003-09-30 devnull DImage* dimage[NHASH];
44 76193d7c 2003-09-30 devnull CScreen* cscreen;
45 76193d7c 2003-09-30 devnull Refresh* refresh;
46 76193d7c 2003-09-30 devnull Rendez refrend;
47 76193d7c 2003-09-30 devnull uchar* readdata;
48 76193d7c 2003-09-30 devnull int nreaddata;
49 76193d7c 2003-09-30 devnull int busy;
50 76193d7c 2003-09-30 devnull int clientid;
51 76193d7c 2003-09-30 devnull int slot;
52 76193d7c 2003-09-30 devnull int refreshme;
53 76193d7c 2003-09-30 devnull int infoid;
57 76193d7c 2003-09-30 devnull struct Refresh
59 76193d7c 2003-09-30 devnull DImage* dimage;
60 76193d7c 2003-09-30 devnull Rectangle r;
61 76193d7c 2003-09-30 devnull Refresh* next;
64 76193d7c 2003-09-30 devnull struct Refx
66 76193d7c 2003-09-30 devnull Client* client;
67 76193d7c 2003-09-30 devnull DImage* dimage;
70 76193d7c 2003-09-30 devnull struct DName
72 76193d7c 2003-09-30 devnull char *name;
73 76193d7c 2003-09-30 devnull Client *client;
74 76193d7c 2003-09-30 devnull DImage* dimage;
75 76193d7c 2003-09-30 devnull int vers;
78 76193d7c 2003-09-30 devnull struct FChar
80 76193d7c 2003-09-30 devnull int minx; /* left edge of bits */
81 76193d7c 2003-09-30 devnull int maxx; /* right edge of bits */
82 76193d7c 2003-09-30 devnull uchar miny; /* first non-zero scan-line */
83 76193d7c 2003-09-30 devnull uchar maxy; /* last non-zero scan-line + 1 */
84 76193d7c 2003-09-30 devnull schar left; /* offset of baseline */
85 76193d7c 2003-09-30 devnull uchar width; /* width of baseline */
89 76193d7c 2003-09-30 devnull * Reference counts in DImages:
90 76193d7c 2003-09-30 devnull * one per open by original client
91 76193d7c 2003-09-30 devnull * one per screen image or fill
92 76193d7c 2003-09-30 devnull * one per image derived from this one by name
94 76193d7c 2003-09-30 devnull struct DImage
98 76193d7c 2003-09-30 devnull char *name;
99 76193d7c 2003-09-30 devnull int vers;
100 76193d7c 2003-09-30 devnull Memimage* image;
101 76193d7c 2003-09-30 devnull int ascent;
102 76193d7c 2003-09-30 devnull int nfchar;
103 76193d7c 2003-09-30 devnull FChar* fchar;
104 76193d7c 2003-09-30 devnull DScreen* dscreen; /* 0 if not a window */
105 76193d7c 2003-09-30 devnull DImage* fromname; /* image this one is derived from, by name */
106 76193d7c 2003-09-30 devnull DImage* next;
109 76193d7c 2003-09-30 devnull struct CScreen
111 76193d7c 2003-09-30 devnull DScreen* dscreen;
112 76193d7c 2003-09-30 devnull CScreen* next;
115 76193d7c 2003-09-30 devnull struct DScreen
118 76193d7c 2003-09-30 devnull int public;
119 76193d7c 2003-09-30 devnull int ref;
120 76193d7c 2003-09-30 devnull DImage *dimage;
121 76193d7c 2003-09-30 devnull DImage *dfill;
122 76193d7c 2003-09-30 devnull Memscreen* screen;
123 76193d7c 2003-09-30 devnull Client* owner;
124 76193d7c 2003-09-30 devnull DScreen* next;
127 76193d7c 2003-09-30 devnull static Draw sdraw;
128 76193d7c 2003-09-30 devnull static Client *client0;
129 76193d7c 2003-09-30 devnull static Memimage *screenimage;
130 76193d7c 2003-09-30 devnull static Rectangle flushrect;
131 76193d7c 2003-09-30 devnull static int waste;
132 76193d7c 2003-09-30 devnull static DScreen* dscreen;
133 76193d7c 2003-09-30 devnull static int drawuninstall(Client*, int);
134 76193d7c 2003-09-30 devnull static Memimage* drawinstall(Client*, int, Memimage*, DScreen*);
135 76193d7c 2003-09-30 devnull static void drawfreedimage(DImage*);
138 76193d7c 2003-09-30 devnull _initdisplaymemimage(Display *d, Memimage *m)
140 76193d7c 2003-09-30 devnull screenimage = m;
141 161060a4 2003-10-11 devnull m->screenref = 1;
142 76193d7c 2003-09-30 devnull client0 = mallocz(sizeof(Client), 1);
143 76193d7c 2003-09-30 devnull if(client0 == nil){
144 76193d7c 2003-09-30 devnull fprint(2, "initdraw: allocating client0: out of memory");
145 76193d7c 2003-09-30 devnull abort();
147 76193d7c 2003-09-30 devnull client0->slot = 0;
148 76193d7c 2003-09-30 devnull client0->clientid = ++sdraw.clientid;
149 76193d7c 2003-09-30 devnull client0->op = SoverD;
150 76193d7c 2003-09-30 devnull sdraw.client[0] = client0;
151 76193d7c 2003-09-30 devnull sdraw.nclient = 1;
155 76193d7c 2003-09-30 devnull _drawreplacescreenimage(Memimage *m)
158 76193d7c 2003-09-30 devnull * Replace the screen image because the screen
159 76193d7c 2003-09-30 devnull * was resized.
161 76193d7c 2003-09-30 devnull * In theory there should only be one reference
162 76193d7c 2003-09-30 devnull * to the current screen image, and that's through
163 76193d7c 2003-09-30 devnull * client0's image 0, installed a few lines above.
164 76193d7c 2003-09-30 devnull * Once the client drops the image, the underlying backing
165 76193d7c 2003-09-30 devnull * store freed properly. The client is being notified
166 76193d7c 2003-09-30 devnull * about the resize through external means, so all we
167 76193d7c 2003-09-30 devnull * need to do is this assignment.
169 161060a4 2003-10-11 devnull Memimage *om;
171 161060a4 2003-10-11 devnull qlock(&sdraw.lk);
172 161060a4 2003-10-11 devnull om = screenimage;
173 76193d7c 2003-09-30 devnull screenimage = m;
174 161060a4 2003-10-11 devnull m->screenref = 1;
175 161060a4 2003-10-11 devnull if(om && --om->screenref == 0){
176 161060a4 2003-10-11 devnull _freememimage(om);
178 161060a4 2003-10-11 devnull qunlock(&sdraw.lk);
183 76193d7c 2003-09-30 devnull drawrefreshscreen(DImage *l, Client *client)
185 76193d7c 2003-09-30 devnull while(l != nil && l->dscreen == nil)
186 76193d7c 2003-09-30 devnull l = l->fromname;
187 76193d7c 2003-09-30 devnull if(l != nil && l->dscreen->owner != client)
188 76193d7c 2003-09-30 devnull l->dscreen->owner->refreshme = 1;
193 76193d7c 2003-09-30 devnull drawrefresh(Memimage *m, Rectangle r, void *v)
195 76193d7c 2003-09-30 devnull Refx *x;
196 76193d7c 2003-09-30 devnull DImage *d;
197 76193d7c 2003-09-30 devnull Client *c;
198 76193d7c 2003-09-30 devnull Refresh *ref;
200 76193d7c 2003-09-30 devnull USED(m);
202 76193d7c 2003-09-30 devnull if(v == 0)
205 76193d7c 2003-09-30 devnull c = x->client;
206 76193d7c 2003-09-30 devnull d = x->dimage;
207 76193d7c 2003-09-30 devnull for(ref=c->refresh; ref; ref=ref->next)
208 76193d7c 2003-09-30 devnull if(ref->dimage == d){
209 76193d7c 2003-09-30 devnull combinerect(&ref->r, r);
212 76193d7c 2003-09-30 devnull ref = mallocz(sizeof(Refresh), 1);
213 76193d7c 2003-09-30 devnull if(ref){
214 76193d7c 2003-09-30 devnull ref->dimage = d;
215 76193d7c 2003-09-30 devnull ref->r = r;
216 76193d7c 2003-09-30 devnull ref->next = c->refresh;
217 76193d7c 2003-09-30 devnull c->refresh = ref;
221 76193d7c 2003-09-30 devnull static void
222 76193d7c 2003-09-30 devnull addflush(Rectangle r)
224 76193d7c 2003-09-30 devnull int abb, ar, anbb;
225 76193d7c 2003-09-30 devnull Rectangle nbb;
227 76193d7c 2003-09-30 devnull if(sdraw.softscreen==0 || !rectclip(&r, screenimage->r))
230 76193d7c 2003-09-30 devnull if(flushrect.min.x >= flushrect.max.x){
231 76193d7c 2003-09-30 devnull flushrect = r;
232 76193d7c 2003-09-30 devnull waste = 0;
235 76193d7c 2003-09-30 devnull nbb = flushrect;
236 76193d7c 2003-09-30 devnull combinerect(&nbb, r);
237 76193d7c 2003-09-30 devnull ar = Dx(r)*Dy(r);
238 76193d7c 2003-09-30 devnull abb = Dx(flushrect)*Dy(flushrect);
239 76193d7c 2003-09-30 devnull anbb = Dx(nbb)*Dy(nbb);
241 76193d7c 2003-09-30 devnull * Area of new waste is area of new bb minus area of old bb,
242 76193d7c 2003-09-30 devnull * less the area of the new segment, which we assume is not waste.
243 76193d7c 2003-09-30 devnull * This could be negative, but that's OK.
245 76193d7c 2003-09-30 devnull waste += anbb-abb - ar;
246 76193d7c 2003-09-30 devnull if(waste < 0)
247 76193d7c 2003-09-30 devnull waste = 0;
249 76193d7c 2003-09-30 devnull * absorb if:
250 76193d7c 2003-09-30 devnull * total area is small
251 76193d7c 2003-09-30 devnull * waste is less than half total area
252 76193d7c 2003-09-30 devnull * rectangles touch
254 76193d7c 2003-09-30 devnull if(anbb<=1024 || waste*2<anbb || rectXrect(flushrect, r)){
255 76193d7c 2003-09-30 devnull flushrect = nbb;
258 76193d7c 2003-09-30 devnull /* emit current state */
259 76193d7c 2003-09-30 devnull if(flushrect.min.x < flushrect.max.x)
260 76193d7c 2003-09-30 devnull flushmemscreen(flushrect);
261 76193d7c 2003-09-30 devnull flushrect = r;
262 76193d7c 2003-09-30 devnull waste = 0;
267 76193d7c 2003-09-30 devnull dstflush(int dstid, Memimage *dst, Rectangle r)
269 76193d7c 2003-09-30 devnull Memlayer *l;
271 76193d7c 2003-09-30 devnull if(dstid == 0){
272 76193d7c 2003-09-30 devnull combinerect(&flushrect, r);
275 76193d7c 2003-09-30 devnull /* how can this happen? -rsc, dec 12 2002 */
276 76193d7c 2003-09-30 devnull if(dst == 0){
277 76193d7c 2003-09-30 devnull print("nil dstflush\n");
280 76193d7c 2003-09-30 devnull l = dst->layer;
281 76193d7c 2003-09-30 devnull if(l == nil)
284 76193d7c 2003-09-30 devnull if(l->screen->image->data != screenimage->data)
286 76193d7c 2003-09-30 devnull r = rectaddpt(r, l->delta);
287 76193d7c 2003-09-30 devnull l = l->screen->image->layer;
288 76193d7c 2003-09-30 devnull }while(l);
289 76193d7c 2003-09-30 devnull addflush(r);
294 76193d7c 2003-09-30 devnull drawflush(void)
296 76193d7c 2003-09-30 devnull if(flushrect.min.x < flushrect.max.x)
297 76193d7c 2003-09-30 devnull flushmemscreen(flushrect);
298 76193d7c 2003-09-30 devnull flushrect = Rect(10000, 10000, -10000, -10000);
303 76193d7c 2003-09-30 devnull drawcmp(char *a, char *b, int n)
305 76193d7c 2003-09-30 devnull if(strlen(a) != n)
306 76193d7c 2003-09-30 devnull return 1;
307 76193d7c 2003-09-30 devnull return memcmp(a, b, n);
312 76193d7c 2003-09-30 devnull drawlookupname(int n, char *str)
314 76193d7c 2003-09-30 devnull DName *name, *ename;
316 76193d7c 2003-09-30 devnull name = sdraw.name;
317 76193d7c 2003-09-30 devnull ename = &name[sdraw.nname];
318 76193d7c 2003-09-30 devnull for(; name<ename; name++)
319 76193d7c 2003-09-30 devnull if(drawcmp(name->name, str, n) == 0)
320 76193d7c 2003-09-30 devnull return name;
321 76193d7c 2003-09-30 devnull return 0;
326 76193d7c 2003-09-30 devnull drawgoodname(DImage *d)
328 76193d7c 2003-09-30 devnull DName *n;
330 76193d7c 2003-09-30 devnull /* if window, validate the screen's own images */
331 76193d7c 2003-09-30 devnull if(d->dscreen)
332 76193d7c 2003-09-30 devnull if(drawgoodname(d->dscreen->dimage) == 0
333 76193d7c 2003-09-30 devnull || drawgoodname(d->dscreen->dfill) == 0)
334 76193d7c 2003-09-30 devnull return 0;
335 76193d7c 2003-09-30 devnull if(d->name == nil)
336 76193d7c 2003-09-30 devnull return 1;
337 76193d7c 2003-09-30 devnull n = drawlookupname(strlen(d->name), d->name);
338 76193d7c 2003-09-30 devnull if(n==nil || n->vers!=d->vers)
339 76193d7c 2003-09-30 devnull return 0;
340 76193d7c 2003-09-30 devnull return 1;
345 76193d7c 2003-09-30 devnull drawlookup(Client *client, int id, int checkname)
347 76193d7c 2003-09-30 devnull DImage *d;
349 76193d7c 2003-09-30 devnull d = client->dimage[id&HASHMASK];
350 76193d7c 2003-09-30 devnull while(d){
351 76193d7c 2003-09-30 devnull if(d->id == id){
353 76193d7c 2003-09-30 devnull * BUG: should error out but too hard.
354 76193d7c 2003-09-30 devnull * Return 0 instead.
356 76193d7c 2003-09-30 devnull if(checkname && !drawgoodname(d))
357 76193d7c 2003-09-30 devnull return 0;
358 76193d7c 2003-09-30 devnull return d;
360 76193d7c 2003-09-30 devnull d = d->next;
362 76193d7c 2003-09-30 devnull return 0;
366 76193d7c 2003-09-30 devnull DScreen*
367 76193d7c 2003-09-30 devnull drawlookupdscreen(int id)
369 76193d7c 2003-09-30 devnull DScreen *s;
371 76193d7c 2003-09-30 devnull s = dscreen;
372 76193d7c 2003-09-30 devnull while(s){
373 76193d7c 2003-09-30 devnull if(s->id == id)
374 76193d7c 2003-09-30 devnull return s;
375 76193d7c 2003-09-30 devnull s = s->next;
377 76193d7c 2003-09-30 devnull return 0;
381 76193d7c 2003-09-30 devnull DScreen*
382 76193d7c 2003-09-30 devnull drawlookupscreen(Client *client, int id, CScreen **cs)
384 76193d7c 2003-09-30 devnull CScreen *s;
386 76193d7c 2003-09-30 devnull s = client->cscreen;
387 76193d7c 2003-09-30 devnull while(s){
388 76193d7c 2003-09-30 devnull if(s->dscreen->id == id){
389 76193d7c 2003-09-30 devnull *cs = s;
390 76193d7c 2003-09-30 devnull return s->dscreen;
392 76193d7c 2003-09-30 devnull s = s->next;
394 76193d7c 2003-09-30 devnull /* caller must check! */
395 76193d7c 2003-09-30 devnull return 0;
399 76193d7c 2003-09-30 devnull Memimage*
400 76193d7c 2003-09-30 devnull drawinstall(Client *client, int id, Memimage *i, DScreen *dscreen)
402 76193d7c 2003-09-30 devnull DImage *d;
404 76193d7c 2003-09-30 devnull d = mallocz(sizeof(DImage), 1);
405 76193d7c 2003-09-30 devnull if(d == 0)
406 76193d7c 2003-09-30 devnull return 0;
407 76193d7c 2003-09-30 devnull d->id = id;
408 76193d7c 2003-09-30 devnull d->ref = 1;
409 76193d7c 2003-09-30 devnull d->name = 0;
410 76193d7c 2003-09-30 devnull d->vers = 0;
411 76193d7c 2003-09-30 devnull d->image = i;
412 161060a4 2003-10-11 devnull if(i->screenref)
413 161060a4 2003-10-11 devnull ++i->screenref;
414 76193d7c 2003-09-30 devnull d->nfchar = 0;
415 76193d7c 2003-09-30 devnull d->fchar = 0;
416 76193d7c 2003-09-30 devnull d->fromname = 0;
417 76193d7c 2003-09-30 devnull d->dscreen = dscreen;
418 76193d7c 2003-09-30 devnull d->next = client->dimage[id&HASHMASK];
419 76193d7c 2003-09-30 devnull client->dimage[id&HASHMASK] = d;
420 76193d7c 2003-09-30 devnull return i;
424 76193d7c 2003-09-30 devnull Memscreen*
425 76193d7c 2003-09-30 devnull drawinstallscreen(Client *client, DScreen *d, int id, DImage *dimage, DImage *dfill, int public)
427 76193d7c 2003-09-30 devnull Memscreen *s;
428 76193d7c 2003-09-30 devnull CScreen *c;
430 76193d7c 2003-09-30 devnull c = mallocz(sizeof(CScreen), 1);
431 76193d7c 2003-09-30 devnull if(dimage && dimage->image && dimage->image->chan == 0){
432 76193d7c 2003-09-30 devnull print("bad image %p in drawinstallscreen", dimage->image);
433 76193d7c 2003-09-30 devnull abort();
436 76193d7c 2003-09-30 devnull if(c == 0)
437 76193d7c 2003-09-30 devnull return 0;
438 76193d7c 2003-09-30 devnull if(d == 0){
439 76193d7c 2003-09-30 devnull d = mallocz(sizeof(DScreen), 1);
440 76193d7c 2003-09-30 devnull if(d == 0){
441 76193d7c 2003-09-30 devnull free(c);
442 76193d7c 2003-09-30 devnull return 0;
444 76193d7c 2003-09-30 devnull s = mallocz(sizeof(Memscreen), 1);
445 76193d7c 2003-09-30 devnull if(s == 0){
446 76193d7c 2003-09-30 devnull free(c);
447 76193d7c 2003-09-30 devnull free(d);
448 76193d7c 2003-09-30 devnull return 0;
450 76193d7c 2003-09-30 devnull s->frontmost = 0;
451 76193d7c 2003-09-30 devnull s->rearmost = 0;
452 76193d7c 2003-09-30 devnull d->dimage = dimage;
453 76193d7c 2003-09-30 devnull if(dimage){
454 76193d7c 2003-09-30 devnull s->image = dimage->image;
455 76193d7c 2003-09-30 devnull dimage->ref++;
457 76193d7c 2003-09-30 devnull d->dfill = dfill;
458 76193d7c 2003-09-30 devnull if(dfill){
459 76193d7c 2003-09-30 devnull s->fill = dfill->image;
460 76193d7c 2003-09-30 devnull dfill->ref++;
462 76193d7c 2003-09-30 devnull d->ref = 0;
463 76193d7c 2003-09-30 devnull d->id = id;
464 76193d7c 2003-09-30 devnull d->screen = s;
465 76193d7c 2003-09-30 devnull d->public = public;
466 76193d7c 2003-09-30 devnull d->next = dscreen;
467 76193d7c 2003-09-30 devnull d->owner = client;
468 76193d7c 2003-09-30 devnull dscreen = d;
470 76193d7c 2003-09-30 devnull c->dscreen = d;
471 76193d7c 2003-09-30 devnull d->ref++;
472 76193d7c 2003-09-30 devnull c->next = client->cscreen;
473 76193d7c 2003-09-30 devnull client->cscreen = c;
474 76193d7c 2003-09-30 devnull return d->screen;
479 76193d7c 2003-09-30 devnull drawdelname(DName *name)
483 76193d7c 2003-09-30 devnull i = name-sdraw.name;
484 76193d7c 2003-09-30 devnull memmove(name, name+1, (sdraw.nname-(i+1))*sizeof(DName));
485 76193d7c 2003-09-30 devnull sdraw.nname--;
490 76193d7c 2003-09-30 devnull drawfreedscreen(DScreen *this)
492 76193d7c 2003-09-30 devnull DScreen *ds, *next;
494 76193d7c 2003-09-30 devnull this->ref--;
495 76193d7c 2003-09-30 devnull if(this->ref < 0)
496 76193d7c 2003-09-30 devnull print("negative ref in drawfreedscreen\n");
497 76193d7c 2003-09-30 devnull if(this->ref > 0)
499 76193d7c 2003-09-30 devnull ds = dscreen;
500 76193d7c 2003-09-30 devnull if(ds == this){
501 76193d7c 2003-09-30 devnull dscreen = this->next;
502 76193d7c 2003-09-30 devnull goto Found;
504 76193d7c 2003-09-30 devnull while(next = ds->next){ /* assign = */
505 76193d7c 2003-09-30 devnull if(next == this){
506 76193d7c 2003-09-30 devnull ds->next = this->next;
507 76193d7c 2003-09-30 devnull goto Found;
509 76193d7c 2003-09-30 devnull ds = next;
512 76193d7c 2003-09-30 devnull * Should signal Enodrawimage, but too hard.
517 76193d7c 2003-09-30 devnull if(this->dimage)
518 76193d7c 2003-09-30 devnull drawfreedimage(this->dimage);
519 76193d7c 2003-09-30 devnull if(this->dfill)
520 76193d7c 2003-09-30 devnull drawfreedimage(this->dfill);
521 76193d7c 2003-09-30 devnull free(this->screen);
522 76193d7c 2003-09-30 devnull free(this);
527 76193d7c 2003-09-30 devnull drawfreedimage(DImage *dimage)
530 76193d7c 2003-09-30 devnull Memimage *l;
531 76193d7c 2003-09-30 devnull DScreen *ds;
533 76193d7c 2003-09-30 devnull dimage->ref--;
534 76193d7c 2003-09-30 devnull if(dimage->ref < 0)
535 76193d7c 2003-09-30 devnull print("negative ref in drawfreedimage\n");
536 76193d7c 2003-09-30 devnull if(dimage->ref > 0)
539 76193d7c 2003-09-30 devnull /* any names? */
540 76193d7c 2003-09-30 devnull for(i=0; i<sdraw.nname; )
541 76193d7c 2003-09-30 devnull if(sdraw.name[i].dimage == dimage)
542 76193d7c 2003-09-30 devnull drawdelname(sdraw.name+i);
545 76193d7c 2003-09-30 devnull if(dimage->fromname){ /* acquired by name; owned by someone else*/
546 76193d7c 2003-09-30 devnull drawfreedimage(dimage->fromname);
547 76193d7c 2003-09-30 devnull goto Return;
549 76193d7c 2003-09-30 devnull ds = dimage->dscreen;
550 161060a4 2003-10-11 devnull l = dimage->image;
552 76193d7c 2003-09-30 devnull if(l->data == screenimage->data)
553 76193d7c 2003-09-30 devnull addflush(l->layer->screenr);
554 76193d7c 2003-09-30 devnull if(l->layer->refreshfn == drawrefresh) /* else true owner will clean up */
555 76193d7c 2003-09-30 devnull free(l->layer->refreshptr);
556 76193d7c 2003-09-30 devnull l->layer->refreshptr = nil;
557 76193d7c 2003-09-30 devnull if(drawgoodname(dimage))
558 76193d7c 2003-09-30 devnull memldelete(l);
560 76193d7c 2003-09-30 devnull memlfree(l);
561 76193d7c 2003-09-30 devnull drawfreedscreen(ds);
563 161060a4 2003-10-11 devnull if(l->screenref==0)
564 161060a4 2003-10-11 devnull freememimage(l);
565 161060a4 2003-10-11 devnull else if(--l->screenref==0)
566 161060a4 2003-10-11 devnull _freememimage(l);
569 76193d7c 2003-09-30 devnull free(dimage->fchar);
570 76193d7c 2003-09-30 devnull free(dimage);
575 76193d7c 2003-09-30 devnull drawuninstallscreen(Client *client, CScreen *this)
577 76193d7c 2003-09-30 devnull CScreen *cs, *next;
579 76193d7c 2003-09-30 devnull cs = client->cscreen;
580 76193d7c 2003-09-30 devnull if(cs == this){
581 76193d7c 2003-09-30 devnull client->cscreen = this->next;
582 76193d7c 2003-09-30 devnull drawfreedscreen(this->dscreen);
583 76193d7c 2003-09-30 devnull free(this);
586 76193d7c 2003-09-30 devnull while(next = cs->next){ /* assign = */
587 76193d7c 2003-09-30 devnull if(next == this){
588 76193d7c 2003-09-30 devnull cs->next = this->next;
589 76193d7c 2003-09-30 devnull drawfreedscreen(this->dscreen);
590 76193d7c 2003-09-30 devnull free(this);
593 76193d7c 2003-09-30 devnull cs = next;
599 76193d7c 2003-09-30 devnull drawuninstall(Client *client, int id)
601 76193d7c 2003-09-30 devnull DImage *d, *next;
603 76193d7c 2003-09-30 devnull d = client->dimage[id&HASHMASK];
604 76193d7c 2003-09-30 devnull if(d == 0)
605 76193d7c 2003-09-30 devnull return -1;
606 76193d7c 2003-09-30 devnull if(d->id == id){
607 76193d7c 2003-09-30 devnull client->dimage[id&HASHMASK] = d->next;
608 76193d7c 2003-09-30 devnull drawfreedimage(d);
609 76193d7c 2003-09-30 devnull return 0;
611 76193d7c 2003-09-30 devnull while(next = d->next){ /* assign = */
612 76193d7c 2003-09-30 devnull if(next->id == id){
613 76193d7c 2003-09-30 devnull d->next = next->next;
614 76193d7c 2003-09-30 devnull drawfreedimage(next);
615 76193d7c 2003-09-30 devnull return 0;
617 76193d7c 2003-09-30 devnull d = next;
619 76193d7c 2003-09-30 devnull return -1;
624 76193d7c 2003-09-30 devnull drawaddname(Client *client, DImage *di, int n, char *str, char **err)
626 76193d7c 2003-09-30 devnull DName *name, *ename, *new, *t;
627 76193d7c 2003-09-30 devnull char *ns;
629 76193d7c 2003-09-30 devnull name = sdraw.name;
630 76193d7c 2003-09-30 devnull ename = &name[sdraw.nname];
631 76193d7c 2003-09-30 devnull for(; name<ename; name++)
632 76193d7c 2003-09-30 devnull if(drawcmp(name->name, str, n) == 0){
633 76193d7c 2003-09-30 devnull *err = "image name in use";
634 76193d7c 2003-09-30 devnull return -1;
636 76193d7c 2003-09-30 devnull t = mallocz((sdraw.nname+1)*sizeof(DName), 1);
637 76193d7c 2003-09-30 devnull ns = malloc(n+1);
638 76193d7c 2003-09-30 devnull if(t == nil || ns == nil){
639 76193d7c 2003-09-30 devnull free(t);
640 76193d7c 2003-09-30 devnull free(ns);
641 76193d7c 2003-09-30 devnull *err = "out of memory";
642 76193d7c 2003-09-30 devnull return -1;
644 76193d7c 2003-09-30 devnull memmove(t, sdraw.name, sdraw.nname*sizeof(DName));
645 76193d7c 2003-09-30 devnull free(sdraw.name);
646 76193d7c 2003-09-30 devnull sdraw.name = t;
647 76193d7c 2003-09-30 devnull new = &sdraw.name[sdraw.nname++];
648 76193d7c 2003-09-30 devnull new->name = ns;
649 76193d7c 2003-09-30 devnull memmove(new->name, str, n);
650 76193d7c 2003-09-30 devnull new->name[n] = 0;
651 76193d7c 2003-09-30 devnull new->dimage = di;
652 76193d7c 2003-09-30 devnull new->client = client;
653 76193d7c 2003-09-30 devnull new->vers = ++sdraw.vers;
654 76193d7c 2003-09-30 devnull return 0;
657 76193d7c 2003-09-30 devnull static int
658 76193d7c 2003-09-30 devnull drawclientop(Client *cl)
662 76193d7c 2003-09-30 devnull op = cl->op;
663 76193d7c 2003-09-30 devnull cl->op = SoverD;
664 76193d7c 2003-09-30 devnull return op;
668 76193d7c 2003-09-30 devnull Memimage*
669 76193d7c 2003-09-30 devnull drawimage(Client *client, uchar *a)
671 76193d7c 2003-09-30 devnull DImage *d;
673 76193d7c 2003-09-30 devnull d = drawlookup(client, BGLONG(a), 1);
674 76193d7c 2003-09-30 devnull if(d == nil)
675 76193d7c 2003-09-30 devnull return nil; /* caller must check! */
676 76193d7c 2003-09-30 devnull return d->image;
681 76193d7c 2003-09-30 devnull drawrectangle(Rectangle *r, uchar *a)
683 76193d7c 2003-09-30 devnull r->min.x = BGLONG(a+0*4);
684 76193d7c 2003-09-30 devnull r->min.y = BGLONG(a+1*4);
685 76193d7c 2003-09-30 devnull r->max.x = BGLONG(a+2*4);
686 76193d7c 2003-09-30 devnull r->max.y = BGLONG(a+3*4);
691 76193d7c 2003-09-30 devnull drawpoint(Point *p, uchar *a)
693 76193d7c 2003-09-30 devnull p->x = BGLONG(a+0*4);
694 76193d7c 2003-09-30 devnull p->y = BGLONG(a+1*4);
699 76193d7c 2003-09-30 devnull drawchar(Memimage *dst, Point p, Memimage *src, Point *sp, DImage *font, int index, int op)
701 76193d7c 2003-09-30 devnull FChar *fc;
702 76193d7c 2003-09-30 devnull Rectangle r;
703 76193d7c 2003-09-30 devnull Point sp1;
705 76193d7c 2003-09-30 devnull fc = &font->fchar[index];
706 76193d7c 2003-09-30 devnull r.min.x = p.x+fc->left;
707 76193d7c 2003-09-30 devnull r.min.y = p.y-(font->ascent-fc->miny);
708 76193d7c 2003-09-30 devnull r.max.x = r.min.x+(fc->maxx-fc->minx);
709 76193d7c 2003-09-30 devnull r.max.y = r.min.y+(fc->maxy-fc->miny);
710 76193d7c 2003-09-30 devnull sp1.x = sp->x+fc->left;
711 76193d7c 2003-09-30 devnull sp1.y = sp->y+fc->miny;
712 76193d7c 2003-09-30 devnull memdraw(dst, r, src, sp1, font->image, Pt(fc->minx, fc->miny), op);
713 76193d7c 2003-09-30 devnull p.x += fc->width;
714 76193d7c 2003-09-30 devnull sp->x += fc->width;
715 76193d7c 2003-09-30 devnull return p;
720 76193d7c 2003-09-30 devnull drawcoord(uchar *p, uchar *maxp, int oldx, int *newx)
722 76193d7c 2003-09-30 devnull int b, x;
724 76193d7c 2003-09-30 devnull if(p >= maxp)
725 76193d7c 2003-09-30 devnull return nil;
726 76193d7c 2003-09-30 devnull b = *p++;
727 76193d7c 2003-09-30 devnull x = b & 0x7F;
728 76193d7c 2003-09-30 devnull if(b & 0x80){
729 76193d7c 2003-09-30 devnull if(p+1 >= maxp)
730 76193d7c 2003-09-30 devnull return nil;
731 76193d7c 2003-09-30 devnull x |= *p++ << 7;
732 76193d7c 2003-09-30 devnull x |= *p++ << 15;
733 76193d7c 2003-09-30 devnull if(x & (1<<22))
734 76193d7c 2003-09-30 devnull x |= ~0<<23;
736 76193d7c 2003-09-30 devnull if(b & 0x40)
737 76193d7c 2003-09-30 devnull x |= ~0<<7;
738 76193d7c 2003-09-30 devnull x += oldx;
740 76193d7c 2003-09-30 devnull *newx = x;
741 76193d7c 2003-09-30 devnull return p;
745 76193d7c 2003-09-30 devnull _drawmsgread(Display *d, void *a, int n)
747 76193d7c 2003-09-30 devnull int inbuf;
749 161060a4 2003-10-11 devnull qlock(&sdraw.lk);
750 76193d7c 2003-09-30 devnull inbuf = d->obufp - d->obuf;
751 76193d7c 2003-09-30 devnull if(n > inbuf)
752 76193d7c 2003-09-30 devnull n = inbuf;
753 76193d7c 2003-09-30 devnull memmove(a, d->obuf, n);
754 76193d7c 2003-09-30 devnull inbuf -= n;
755 76193d7c 2003-09-30 devnull if(inbuf)
756 76193d7c 2003-09-30 devnull memmove(d->obuf, d->obufp-inbuf, inbuf);
757 76193d7c 2003-09-30 devnull d->obufp = d->obuf+inbuf;
758 161060a4 2003-10-11 devnull qunlock(&sdraw.lk);
759 76193d7c 2003-09-30 devnull return n;
762 76193d7c 2003-09-30 devnull static void
763 76193d7c 2003-09-30 devnull drawmsgsquirrel(Display *d, void *a, int n)
765 76193d7c 2003-09-30 devnull uchar *ep;
767 76193d7c 2003-09-30 devnull ep = d->obuf + d->obufsize;
768 76193d7c 2003-09-30 devnull if(d->obufp + n > ep)
769 76193d7c 2003-09-30 devnull abort();
770 76193d7c 2003-09-30 devnull memmove(d->obufp, a, n);
771 76193d7c 2003-09-30 devnull d->obufp += n;
775 76193d7c 2003-09-30 devnull _drawmsgwrite(Display *d, void *v, int n)
777 76193d7c 2003-09-30 devnull char cbuf[40], *err, ibuf[12*12+1], *s;
778 76193d7c 2003-09-30 devnull int c, ci, doflush, dstid, e0, e1, esize, j, m;
779 76193d7c 2003-09-30 devnull int ni, nw, oesize, oldn, op, ox, oy, repl, scrnid, y;
780 76193d7c 2003-09-30 devnull uchar *a, refresh, *u;
781 76193d7c 2003-09-30 devnull u32int chan, value;
782 76193d7c 2003-09-30 devnull Client *client;
783 76193d7c 2003-09-30 devnull CScreen *cs;
784 76193d7c 2003-09-30 devnull DImage *di, *ddst, *dsrc, *font, *ll;
785 76193d7c 2003-09-30 devnull DName *dn;
786 76193d7c 2003-09-30 devnull DScreen *dscrn;
787 76193d7c 2003-09-30 devnull FChar *fc;
788 76193d7c 2003-09-30 devnull Memimage *dst, *i, *l, **lp, *mask, *src;
789 76193d7c 2003-09-30 devnull Memscreen *scrn;
790 76193d7c 2003-09-30 devnull Point p, *pp, q, sp;
791 76193d7c 2003-09-30 devnull Rectangle clipr, r;
792 76193d7c 2003-09-30 devnull Refreshfn reffn;
793 76193d7c 2003-09-30 devnull Refx *refx;
795 161060a4 2003-10-11 devnull qlock(&sdraw.lk);
796 76193d7c 2003-09-30 devnull d->obufp = d->obuf;
799 76193d7c 2003-09-30 devnull oldn = n;
800 76193d7c 2003-09-30 devnull client = client0;
802 76193d7c 2003-09-30 devnull while((n-=m) > 0){
804 76193d7c 2003-09-30 devnull //fprint(2, "msgwrite %d(%d)...", n, *a);
805 76193d7c 2003-09-30 devnull switch(*a){
806 76193d7c 2003-09-30 devnull default:
807 76193d7c 2003-09-30 devnull //fprint(2, "bad command %d\n", *a);
808 76193d7c 2003-09-30 devnull err = "bad draw command";
809 76193d7c 2003-09-30 devnull goto error;
811 76193d7c 2003-09-30 devnull /* allocate: 'b' id[4] screenid[4] refresh[1] chan[4] repl[1]
812 76193d7c 2003-09-30 devnull R[4*4] clipR[4*4] rrggbbaa[4]
814 76193d7c 2003-09-30 devnull case 'b':
815 76193d7c 2003-09-30 devnull m = 1+4+4+1+4+1+4*4+4*4+4;
816 76193d7c 2003-09-30 devnull if(n < m)
817 76193d7c 2003-09-30 devnull goto Eshortdraw;
818 76193d7c 2003-09-30 devnull dstid = BGLONG(a+1);
819 76193d7c 2003-09-30 devnull scrnid = BGSHORT(a+5);
820 76193d7c 2003-09-30 devnull refresh = a[9];
821 76193d7c 2003-09-30 devnull chan = BGLONG(a+10);
822 76193d7c 2003-09-30 devnull repl = a[14];
823 76193d7c 2003-09-30 devnull drawrectangle(&r, a+15);
824 76193d7c 2003-09-30 devnull drawrectangle(&clipr, a+31);
825 76193d7c 2003-09-30 devnull value = BGLONG(a+47);
826 76193d7c 2003-09-30 devnull if(drawlookup(client, dstid, 0))
827 76193d7c 2003-09-30 devnull goto Eimageexists;
828 76193d7c 2003-09-30 devnull if(scrnid){
829 76193d7c 2003-09-30 devnull dscrn = drawlookupscreen(client, scrnid, &cs);
830 76193d7c 2003-09-30 devnull if(!dscrn)
831 76193d7c 2003-09-30 devnull goto Enodrawscreen;
832 76193d7c 2003-09-30 devnull scrn = dscrn->screen;
833 76193d7c 2003-09-30 devnull if(repl || chan!=scrn->image->chan){
834 76193d7c 2003-09-30 devnull err = "image parameters incompatibile with screen";
835 76193d7c 2003-09-30 devnull goto error;
837 76193d7c 2003-09-30 devnull reffn = nil;
838 76193d7c 2003-09-30 devnull switch(refresh){
839 76193d7c 2003-09-30 devnull case Refbackup:
841 76193d7c 2003-09-30 devnull case Refnone:
842 76193d7c 2003-09-30 devnull reffn = memlnorefresh;
844 76193d7c 2003-09-30 devnull case Refmesg:
845 76193d7c 2003-09-30 devnull reffn = drawrefresh;
847 76193d7c 2003-09-30 devnull default:
848 76193d7c 2003-09-30 devnull err = "unknown refresh method";
849 76193d7c 2003-09-30 devnull goto error;
851 76193d7c 2003-09-30 devnull l = memlalloc(scrn, r, reffn, 0, value);
852 76193d7c 2003-09-30 devnull if(l == 0)
853 76193d7c 2003-09-30 devnull goto Edrawmem;
854 76193d7c 2003-09-30 devnull addflush(l->layer->screenr);
855 76193d7c 2003-09-30 devnull l->clipr = clipr;
856 76193d7c 2003-09-30 devnull rectclip(&l->clipr, r);
857 76193d7c 2003-09-30 devnull if(drawinstall(client, dstid, l, dscrn) == 0){
858 76193d7c 2003-09-30 devnull memldelete(l);
859 76193d7c 2003-09-30 devnull goto Edrawmem;
861 76193d7c 2003-09-30 devnull dscrn->ref++;
862 76193d7c 2003-09-30 devnull if(reffn){
863 76193d7c 2003-09-30 devnull refx = nil;
864 76193d7c 2003-09-30 devnull if(reffn == drawrefresh){
865 76193d7c 2003-09-30 devnull refx = mallocz(sizeof(Refx), 1);
866 76193d7c 2003-09-30 devnull if(refx == 0){
867 76193d7c 2003-09-30 devnull if(drawuninstall(client, dstid) < 0)
868 76193d7c 2003-09-30 devnull goto Enodrawimage;
869 76193d7c 2003-09-30 devnull goto Edrawmem;
871 76193d7c 2003-09-30 devnull refx->client = client;
872 76193d7c 2003-09-30 devnull refx->dimage = drawlookup(client, dstid, 1);
874 76193d7c 2003-09-30 devnull memlsetrefresh(l, reffn, refx);
876 76193d7c 2003-09-30 devnull continue;
878 76193d7c 2003-09-30 devnull i = allocmemimage(r, chan);
879 76193d7c 2003-09-30 devnull if(i == 0)
880 76193d7c 2003-09-30 devnull goto Edrawmem;
881 76193d7c 2003-09-30 devnull if(repl)
882 76193d7c 2003-09-30 devnull i->flags |= Frepl;
883 76193d7c 2003-09-30 devnull i->clipr = clipr;
884 76193d7c 2003-09-30 devnull if(!repl)
885 76193d7c 2003-09-30 devnull rectclip(&i->clipr, r);
886 76193d7c 2003-09-30 devnull if(drawinstall(client, dstid, i, 0) == 0){
887 76193d7c 2003-09-30 devnull freememimage(i);
888 76193d7c 2003-09-30 devnull goto Edrawmem;
890 76193d7c 2003-09-30 devnull memfillcolor(i, value);
891 76193d7c 2003-09-30 devnull continue;
893 76193d7c 2003-09-30 devnull /* allocate screen: 'A' id[4] imageid[4] fillid[4] public[1] */
894 76193d7c 2003-09-30 devnull case 'A':
895 76193d7c 2003-09-30 devnull m = 1+4+4+4+1;
896 76193d7c 2003-09-30 devnull if(n < m)
897 76193d7c 2003-09-30 devnull goto Eshortdraw;
898 76193d7c 2003-09-30 devnull dstid = BGLONG(a+1);
899 76193d7c 2003-09-30 devnull if(dstid == 0)
900 76193d7c 2003-09-30 devnull goto Ebadarg;
901 76193d7c 2003-09-30 devnull if(drawlookupdscreen(dstid))
902 76193d7c 2003-09-30 devnull goto Escreenexists;
903 76193d7c 2003-09-30 devnull ddst = drawlookup(client, BGLONG(a+5), 1);
904 76193d7c 2003-09-30 devnull dsrc = drawlookup(client, BGLONG(a+9), 1);
905 76193d7c 2003-09-30 devnull if(ddst==0 || dsrc==0)
906 76193d7c 2003-09-30 devnull goto Enodrawimage;
907 76193d7c 2003-09-30 devnull if(drawinstallscreen(client, 0, dstid, ddst, dsrc, a[13]) == 0)
908 76193d7c 2003-09-30 devnull goto Edrawmem;
909 76193d7c 2003-09-30 devnull continue;
911 76193d7c 2003-09-30 devnull /* set repl and clip: 'c' dstid[4] repl[1] clipR[4*4] */
912 76193d7c 2003-09-30 devnull case 'c':
913 76193d7c 2003-09-30 devnull m = 1+4+1+4*4;
914 76193d7c 2003-09-30 devnull if(n < m)
915 76193d7c 2003-09-30 devnull goto Eshortdraw;
916 76193d7c 2003-09-30 devnull ddst = drawlookup(client, BGLONG(a+1), 1);
917 76193d7c 2003-09-30 devnull if(ddst == nil)
918 76193d7c 2003-09-30 devnull goto Enodrawimage;
919 76193d7c 2003-09-30 devnull if(ddst->name){
920 76193d7c 2003-09-30 devnull err = "can't change repl/clipr of shared image";
921 76193d7c 2003-09-30 devnull goto error;
923 76193d7c 2003-09-30 devnull dst = ddst->image;
924 76193d7c 2003-09-30 devnull if(a[5])
925 76193d7c 2003-09-30 devnull dst->flags |= Frepl;
926 76193d7c 2003-09-30 devnull drawrectangle(&dst->clipr, a+6);
927 76193d7c 2003-09-30 devnull continue;
929 76193d7c 2003-09-30 devnull /* draw: 'd' dstid[4] srcid[4] maskid[4] R[4*4] P[2*4] P[2*4] */
930 76193d7c 2003-09-30 devnull case 'd':
931 76193d7c 2003-09-30 devnull m = 1+4+4+4+4*4+2*4+2*4;
932 76193d7c 2003-09-30 devnull if(n < m)
933 76193d7c 2003-09-30 devnull goto Eshortdraw;
934 76193d7c 2003-09-30 devnull dst = drawimage(client, a+1);
935 76193d7c 2003-09-30 devnull dstid = BGLONG(a+1);
936 76193d7c 2003-09-30 devnull src = drawimage(client, a+5);
937 76193d7c 2003-09-30 devnull mask = drawimage(client, a+9);
938 76193d7c 2003-09-30 devnull if(!dst || !src || !mask)
939 76193d7c 2003-09-30 devnull goto Enodrawimage;
940 76193d7c 2003-09-30 devnull drawrectangle(&r, a+13);
941 76193d7c 2003-09-30 devnull drawpoint(&p, a+29);
942 76193d7c 2003-09-30 devnull drawpoint(&q, a+37);
943 76193d7c 2003-09-30 devnull op = drawclientop(client);
944 76193d7c 2003-09-30 devnull memdraw(dst, r, src, p, mask, q, op);
945 76193d7c 2003-09-30 devnull dstflush(dstid, dst, r);
946 76193d7c 2003-09-30 devnull continue;
948 76193d7c 2003-09-30 devnull /* toggle debugging: 'D' val[1] */
949 76193d7c 2003-09-30 devnull case 'D':
950 76193d7c 2003-09-30 devnull m = 1+1;
951 76193d7c 2003-09-30 devnull if(n < m)
952 76193d7c 2003-09-30 devnull goto Eshortdraw;
953 76193d7c 2003-09-30 devnull drawdebug = a[1];
954 76193d7c 2003-09-30 devnull continue;
956 76193d7c 2003-09-30 devnull /* ellipse: 'e' dstid[4] srcid[4] center[2*4] a[4] b[4] thick[4] sp[2*4] alpha[4] phi[4]*/
957 76193d7c 2003-09-30 devnull case 'e':
958 76193d7c 2003-09-30 devnull case 'E':
959 76193d7c 2003-09-30 devnull m = 1+4+4+2*4+4+4+4+2*4+2*4;
960 76193d7c 2003-09-30 devnull if(n < m)
961 76193d7c 2003-09-30 devnull goto Eshortdraw;
962 76193d7c 2003-09-30 devnull dst = drawimage(client, a+1);
963 76193d7c 2003-09-30 devnull dstid = BGLONG(a+1);
964 76193d7c 2003-09-30 devnull src = drawimage(client, a+5);
965 76193d7c 2003-09-30 devnull if(!dst || !src)
966 76193d7c 2003-09-30 devnull goto Enodrawimage;
967 76193d7c 2003-09-30 devnull drawpoint(&p, a+9);
968 76193d7c 2003-09-30 devnull e0 = BGLONG(a+17);
969 76193d7c 2003-09-30 devnull e1 = BGLONG(a+21);
970 76193d7c 2003-09-30 devnull if(e0<0 || e1<0){
971 76193d7c 2003-09-30 devnull err = "invalid ellipse semidiameter";
972 76193d7c 2003-09-30 devnull goto error;
974 76193d7c 2003-09-30 devnull j = BGLONG(a+25);
975 76193d7c 2003-09-30 devnull if(j < 0){
976 76193d7c 2003-09-30 devnull err = "negative ellipse thickness";
977 76193d7c 2003-09-30 devnull goto error;
980 76193d7c 2003-09-30 devnull drawpoint(&sp, a+29);
982 76193d7c 2003-09-30 devnull if(*a == 'E')
984 76193d7c 2003-09-30 devnull ox = BGLONG(a+37);
985 76193d7c 2003-09-30 devnull oy = BGLONG(a+41);
986 76193d7c 2003-09-30 devnull op = drawclientop(client);
987 76193d7c 2003-09-30 devnull /* high bit indicates arc angles are present */
988 76193d7c 2003-09-30 devnull if(ox & (1<<31)){
989 76193d7c 2003-09-30 devnull if((ox & (1<<30)) == 0)
990 76193d7c 2003-09-30 devnull ox &= ~(1<<31);
991 76193d7c 2003-09-30 devnull memarc(dst, p, e0, e1, c, src, sp, ox, oy, op);
993 76193d7c 2003-09-30 devnull memellipse(dst, p, e0, e1, c, src, sp, op);
994 76193d7c 2003-09-30 devnull dstflush(dstid, dst, Rect(p.x-e0-j, p.y-e1-j, p.x+e0+j+1, p.y+e1+j+1));
995 76193d7c 2003-09-30 devnull continue;
997 76193d7c 2003-09-30 devnull /* free: 'f' id[4] */
998 76193d7c 2003-09-30 devnull case 'f':
999 76193d7c 2003-09-30 devnull m = 1+4;
1000 76193d7c 2003-09-30 devnull if(n < m)
1001 76193d7c 2003-09-30 devnull goto Eshortdraw;
1002 76193d7c 2003-09-30 devnull ll = drawlookup(client, BGLONG(a+1), 0);
1003 76193d7c 2003-09-30 devnull if(ll && ll->dscreen && ll->dscreen->owner != client)
1004 76193d7c 2003-09-30 devnull ll->dscreen->owner->refreshme = 1;
1005 76193d7c 2003-09-30 devnull if(drawuninstall(client, BGLONG(a+1)) < 0)
1006 76193d7c 2003-09-30 devnull goto Enodrawimage;
1007 76193d7c 2003-09-30 devnull continue;
1009 76193d7c 2003-09-30 devnull /* free screen: 'F' id[4] */
1010 76193d7c 2003-09-30 devnull case 'F':
1011 76193d7c 2003-09-30 devnull m = 1+4;
1012 76193d7c 2003-09-30 devnull if(n < m)
1013 76193d7c 2003-09-30 devnull goto Eshortdraw;
1014 76193d7c 2003-09-30 devnull if(!drawlookupscreen(client, BGLONG(a+1), &cs))
1015 76193d7c 2003-09-30 devnull goto Enodrawscreen;
1016 76193d7c 2003-09-30 devnull drawuninstallscreen(client, cs);
1017 76193d7c 2003-09-30 devnull continue;
1019 76193d7c 2003-09-30 devnull /* initialize font: 'i' fontid[4] nchars[4] ascent[1] */
1020 76193d7c 2003-09-30 devnull case 'i':
1021 76193d7c 2003-09-30 devnull m = 1+4+4+1;
1022 76193d7c 2003-09-30 devnull if(n < m)
1023 76193d7c 2003-09-30 devnull goto Eshortdraw;
1024 76193d7c 2003-09-30 devnull dstid = BGLONG(a+1);
1025 76193d7c 2003-09-30 devnull if(dstid == 0){
1026 76193d7c 2003-09-30 devnull err = "can't use display as font";
1027 76193d7c 2003-09-30 devnull goto error;
1029 76193d7c 2003-09-30 devnull font = drawlookup(client, dstid, 1);
1030 76193d7c 2003-09-30 devnull if(font == 0)
1031 76193d7c 2003-09-30 devnull goto Enodrawimage;
1032 76193d7c 2003-09-30 devnull if(font->image->layer){
1033 76193d7c 2003-09-30 devnull err = "can't use window as font";
1034 76193d7c 2003-09-30 devnull goto error;
1036 76193d7c 2003-09-30 devnull ni = BGLONG(a+5);
1037 76193d7c 2003-09-30 devnull if(ni<=0 || ni>4096){
1038 76193d7c 2003-09-30 devnull err = "bad font size (4096 chars max)";
1039 76193d7c 2003-09-30 devnull goto error;
1041 76193d7c 2003-09-30 devnull free(font->fchar); /* should we complain if non-zero? */
1042 76193d7c 2003-09-30 devnull font->fchar = mallocz(ni*sizeof(FChar), 1);
1043 76193d7c 2003-09-30 devnull if(font->fchar == 0){
1044 76193d7c 2003-09-30 devnull err = "no memory for font";
1045 76193d7c 2003-09-30 devnull goto error;
1047 76193d7c 2003-09-30 devnull memset(font->fchar, 0, ni*sizeof(FChar));
1048 76193d7c 2003-09-30 devnull font->nfchar = ni;
1049 76193d7c 2003-09-30 devnull font->ascent = a[9];
1050 76193d7c 2003-09-30 devnull continue;
1052 76193d7c 2003-09-30 devnull /* set image 0 to screen image */
1053 76193d7c 2003-09-30 devnull case 'J':
1055 76193d7c 2003-09-30 devnull if(n < m)
1056 76193d7c 2003-09-30 devnull goto Eshortdraw;
1057 76193d7c 2003-09-30 devnull drawinstall(client, 0, screenimage, 0);
1058 76193d7c 2003-09-30 devnull client->infoid = 0;
1059 76193d7c 2003-09-30 devnull continue;
1061 76193d7c 2003-09-30 devnull /* get image info: 'I' */
1062 76193d7c 2003-09-30 devnull case 'I':
1064 76193d7c 2003-09-30 devnull if(n < m)
1065 76193d7c 2003-09-30 devnull goto Eshortdraw;
1066 76193d7c 2003-09-30 devnull if(client->infoid < 0)
1067 76193d7c 2003-09-30 devnull goto Enodrawimage;
1068 76193d7c 2003-09-30 devnull if(client->infoid == 0){
1069 76193d7c 2003-09-30 devnull i = screenimage;
1070 76193d7c 2003-09-30 devnull if(i == nil)
1071 76193d7c 2003-09-30 devnull goto Enodrawimage;
1073 76193d7c 2003-09-30 devnull di = drawlookup(client, client->infoid, 1);
1074 76193d7c 2003-09-30 devnull if(di == nil)
1075 76193d7c 2003-09-30 devnull goto Enodrawimage;
1076 76193d7c 2003-09-30 devnull i = di->image;
1078 76193d7c 2003-09-30 devnull ni = sprint(ibuf, "%11d %11d %11s %11d %11d %11d %11d %11d"
1079 76193d7c 2003-09-30 devnull " %11d %11d %11d %11d ",
1080 76193d7c 2003-09-30 devnull client->clientid,
1081 76193d7c 2003-09-30 devnull client->infoid,
1082 76193d7c 2003-09-30 devnull chantostr(cbuf, i->chan),
1083 76193d7c 2003-09-30 devnull (i->flags&Frepl)==Frepl,
1084 76193d7c 2003-09-30 devnull i->r.min.x, i->r.min.y, i->r.max.x, i->r.max.y,
1085 76193d7c 2003-09-30 devnull i->clipr.min.x, i->clipr.min.y,
1086 76193d7c 2003-09-30 devnull i->clipr.max.x, i->clipr.max.y);
1087 76193d7c 2003-09-30 devnull drawmsgsquirrel(d, ibuf, ni);
1088 76193d7c 2003-09-30 devnull client->infoid = -1;
1089 76193d7c 2003-09-30 devnull continue;
1091 76193d7c 2003-09-30 devnull /* load character: 'l' fontid[4] srcid[4] index[2] R[4*4] P[2*4] left[1] width[1] */
1092 76193d7c 2003-09-30 devnull case 'l':
1093 76193d7c 2003-09-30 devnull m = 1+4+4+2+4*4+2*4+1+1;
1094 76193d7c 2003-09-30 devnull if(n < m)
1095 76193d7c 2003-09-30 devnull goto Eshortdraw;
1096 76193d7c 2003-09-30 devnull font = drawlookup(client, BGLONG(a+1), 1);
1097 76193d7c 2003-09-30 devnull if(font == 0)
1098 76193d7c 2003-09-30 devnull goto Enodrawimage;
1099 76193d7c 2003-09-30 devnull if(font->nfchar == 0)
1100 76193d7c 2003-09-30 devnull goto Enotfont;
1101 76193d7c 2003-09-30 devnull src = drawimage(client, a+5);
1102 76193d7c 2003-09-30 devnull if(!src)
1103 76193d7c 2003-09-30 devnull goto Enodrawimage;
1104 76193d7c 2003-09-30 devnull ci = BGSHORT(a+9);
1105 76193d7c 2003-09-30 devnull if(ci >= font->nfchar)
1106 76193d7c 2003-09-30 devnull goto Eindex;
1107 76193d7c 2003-09-30 devnull drawrectangle(&r, a+11);
1108 76193d7c 2003-09-30 devnull drawpoint(&p, a+27);
1109 76193d7c 2003-09-30 devnull memdraw(font->image, r, src, p, memopaque, p, S);
1110 76193d7c 2003-09-30 devnull fc = &font->fchar[ci];
1111 76193d7c 2003-09-30 devnull fc->minx = r.min.x;
1112 76193d7c 2003-09-30 devnull fc->maxx = r.max.x;
1113 76193d7c 2003-09-30 devnull fc->miny = r.min.y;
1114 76193d7c 2003-09-30 devnull fc->maxy = r.max.y;
1115 76193d7c 2003-09-30 devnull fc->left = a[35];
1116 76193d7c 2003-09-30 devnull fc->width = a[36];
1117 76193d7c 2003-09-30 devnull continue;
1119 76193d7c 2003-09-30 devnull /* draw line: 'L' dstid[4] p0[2*4] p1[2*4] end0[4] end1[4] radius[4] srcid[4] sp[2*4] */
1120 76193d7c 2003-09-30 devnull case 'L':
1121 76193d7c 2003-09-30 devnull m = 1+4+2*4+2*4+4+4+4+4+2*4;
1122 76193d7c 2003-09-30 devnull if(n < m)
1123 76193d7c 2003-09-30 devnull goto Eshortdraw;
1124 76193d7c 2003-09-30 devnull dst = drawimage(client, a+1);
1125 76193d7c 2003-09-30 devnull dstid = BGLONG(a+1);
1126 76193d7c 2003-09-30 devnull drawpoint(&p, a+5);
1127 76193d7c 2003-09-30 devnull drawpoint(&q, a+13);
1128 76193d7c 2003-09-30 devnull e0 = BGLONG(a+21);
1129 76193d7c 2003-09-30 devnull e1 = BGLONG(a+25);
1130 76193d7c 2003-09-30 devnull j = BGLONG(a+29);
1131 76193d7c 2003-09-30 devnull if(j < 0){
1132 76193d7c 2003-09-30 devnull err = "negative line width";
1133 76193d7c 2003-09-30 devnull goto error;
1135 76193d7c 2003-09-30 devnull src = drawimage(client, a+33);
1136 76193d7c 2003-09-30 devnull if(!dst || !src)
1137 76193d7c 2003-09-30 devnull goto Enodrawimage;
1138 76193d7c 2003-09-30 devnull drawpoint(&sp, a+37);
1139 76193d7c 2003-09-30 devnull op = drawclientop(client);
1140 76193d7c 2003-09-30 devnull memline(dst, p, q, e0, e1, j, src, sp, op);
1141 76193d7c 2003-09-30 devnull /* avoid memlinebbox if possible */
1142 76193d7c 2003-09-30 devnull if(dstid==0 || dst->layer!=nil){
1143 76193d7c 2003-09-30 devnull /* BUG: this is terribly inefficient: update maximal containing rect*/
1144 76193d7c 2003-09-30 devnull r = memlinebbox(p, q, e0, e1, j);
1145 76193d7c 2003-09-30 devnull dstflush(dstid, dst, insetrect(r, -(1+1+j)));
1147 76193d7c 2003-09-30 devnull continue;
1149 76193d7c 2003-09-30 devnull /* create image mask: 'm' newid[4] id[4] */
1152 76193d7c 2003-09-30 devnull case 'm':
1153 76193d7c 2003-09-30 devnull m = 4+4;
1154 76193d7c 2003-09-30 devnull if(n < m)
1155 76193d7c 2003-09-30 devnull goto Eshortdraw;
1160 76193d7c 2003-09-30 devnull /* attach to a named image: 'n' dstid[4] j[1] name[j] */
1161 76193d7c 2003-09-30 devnull case 'n':
1162 76193d7c 2003-09-30 devnull m = 1+4+1;
1163 76193d7c 2003-09-30 devnull if(n < m)
1164 76193d7c 2003-09-30 devnull goto Eshortdraw;
1165 76193d7c 2003-09-30 devnull j = a[5];
1166 76193d7c 2003-09-30 devnull if(j == 0) /* give me a non-empty name please */
1167 76193d7c 2003-09-30 devnull goto Eshortdraw;
1168 76193d7c 2003-09-30 devnull m += j;
1169 76193d7c 2003-09-30 devnull if(n < m)
1170 76193d7c 2003-09-30 devnull goto Eshortdraw;
1171 76193d7c 2003-09-30 devnull dstid = BGLONG(a+1);
1172 76193d7c 2003-09-30 devnull if(drawlookup(client, dstid, 0))
1173 76193d7c 2003-09-30 devnull goto Eimageexists;
1174 76193d7c 2003-09-30 devnull dn = drawlookupname(j, (char*)a+6);
1175 76193d7c 2003-09-30 devnull if(dn == nil)
1176 76193d7c 2003-09-30 devnull goto Enoname;
1177 76193d7c 2003-09-30 devnull s = malloc(j+1);
1178 76193d7c 2003-09-30 devnull if(s == nil)
1179 76193d7c 2003-09-30 devnull goto Enomem;
1180 76193d7c 2003-09-30 devnull if(drawinstall(client, dstid, dn->dimage->image, 0) == 0)
1181 76193d7c 2003-09-30 devnull goto Edrawmem;
1182 76193d7c 2003-09-30 devnull di = drawlookup(client, dstid, 0);
1183 76193d7c 2003-09-30 devnull if(di == 0)
1184 76193d7c 2003-09-30 devnull goto Eoldname;
1185 76193d7c 2003-09-30 devnull di->vers = dn->vers;
1186 76193d7c 2003-09-30 devnull di->name = s;
1187 76193d7c 2003-09-30 devnull di->fromname = dn->dimage;
1188 76193d7c 2003-09-30 devnull di->fromname->ref++;
1189 76193d7c 2003-09-30 devnull memmove(di->name, a+6, j);
1190 76193d7c 2003-09-30 devnull di->name[j] = 0;
1191 76193d7c 2003-09-30 devnull client->infoid = dstid;
1192 76193d7c 2003-09-30 devnull continue;
1194 76193d7c 2003-09-30 devnull /* name an image: 'N' dstid[4] in[1] j[1] name[j] */
1195 76193d7c 2003-09-30 devnull case 'N':
1196 76193d7c 2003-09-30 devnull m = 1+4+1+1;
1197 76193d7c 2003-09-30 devnull if(n < m)
1198 76193d7c 2003-09-30 devnull goto Eshortdraw;
1199 76193d7c 2003-09-30 devnull c = a[5];
1200 76193d7c 2003-09-30 devnull j = a[6];
1201 76193d7c 2003-09-30 devnull if(j == 0) /* give me a non-empty name please */
1202 76193d7c 2003-09-30 devnull goto Eshortdraw;
1203 76193d7c 2003-09-30 devnull m += j;
1204 76193d7c 2003-09-30 devnull if(n < m)
1205 76193d7c 2003-09-30 devnull goto Eshortdraw;
1206 76193d7c 2003-09-30 devnull di = drawlookup(client, BGLONG(a+1), 0);
1207 76193d7c 2003-09-30 devnull if(di == 0)
1208 76193d7c 2003-09-30 devnull goto Enodrawimage;
1209 76193d7c 2003-09-30 devnull if(di->name)
1210 76193d7c 2003-09-30 devnull goto Enamed;
1212 76193d7c 2003-09-30 devnull if(drawaddname(client, di, j, (char*)a+7, &err) < 0)
1213 76193d7c 2003-09-30 devnull goto error;
1215 76193d7c 2003-09-30 devnull dn = drawlookupname(j, (char*)a+7);
1216 76193d7c 2003-09-30 devnull if(dn == nil)
1217 76193d7c 2003-09-30 devnull goto Enoname;
1218 76193d7c 2003-09-30 devnull if(dn->dimage != di)
1219 76193d7c 2003-09-30 devnull goto Ewrongname;
1220 76193d7c 2003-09-30 devnull drawdelname(dn);
1222 76193d7c 2003-09-30 devnull continue;
1224 76193d7c 2003-09-30 devnull /* position window: 'o' id[4] r.min [2*4] screenr.min [2*4] */
1225 76193d7c 2003-09-30 devnull case 'o':
1226 76193d7c 2003-09-30 devnull m = 1+4+2*4+2*4;
1227 76193d7c 2003-09-30 devnull if(n < m)
1228 76193d7c 2003-09-30 devnull goto Eshortdraw;
1229 76193d7c 2003-09-30 devnull dst = drawimage(client, a+1);
1230 76193d7c 2003-09-30 devnull if(!dst)
1231 76193d7c 2003-09-30 devnull goto Enodrawimage;
1232 76193d7c 2003-09-30 devnull if(dst->layer){
1233 76193d7c 2003-09-30 devnull drawpoint(&p, a+5);
1234 76193d7c 2003-09-30 devnull drawpoint(&q, a+13);
1235 76193d7c 2003-09-30 devnull r = dst->layer->screenr;
1236 76193d7c 2003-09-30 devnull ni = memlorigin(dst, p, q);
1237 76193d7c 2003-09-30 devnull if(ni < 0){
1238 76193d7c 2003-09-30 devnull err = "image origin failed";
1239 76193d7c 2003-09-30 devnull goto error;
1241 76193d7c 2003-09-30 devnull if(ni > 0){
1242 76193d7c 2003-09-30 devnull addflush(r);
1243 76193d7c 2003-09-30 devnull addflush(dst->layer->screenr);
1244 76193d7c 2003-09-30 devnull ll = drawlookup(client, BGLONG(a+1), 1);
1245 76193d7c 2003-09-30 devnull drawrefreshscreen(ll, client);
1248 76193d7c 2003-09-30 devnull continue;
1250 76193d7c 2003-09-30 devnull /* set compositing operator for next draw operation: 'O' op */
1251 76193d7c 2003-09-30 devnull case 'O':
1252 76193d7c 2003-09-30 devnull m = 1+1;
1253 76193d7c 2003-09-30 devnull if(n < m)
1254 76193d7c 2003-09-30 devnull goto Eshortdraw;
1255 76193d7c 2003-09-30 devnull client->op = a[1];
1256 76193d7c 2003-09-30 devnull continue;
1258 76193d7c 2003-09-30 devnull /* filled polygon: 'P' dstid[4] n[2] wind[4] ignore[2*4] srcid[4] sp[2*4] p0[2*4] dp[2*2*n] */
1259 76193d7c 2003-09-30 devnull /* polygon: 'p' dstid[4] n[2] end0[4] end1[4] radius[4] srcid[4] sp[2*4] p0[2*4] dp[2*2*n] */
1260 76193d7c 2003-09-30 devnull case 'p':
1261 76193d7c 2003-09-30 devnull case 'P':
1262 76193d7c 2003-09-30 devnull m = 1+4+2+4+4+4+4+2*4;
1263 76193d7c 2003-09-30 devnull if(n < m)
1264 76193d7c 2003-09-30 devnull goto Eshortdraw;
1265 76193d7c 2003-09-30 devnull dstid = BGLONG(a+1);
1266 76193d7c 2003-09-30 devnull dst = drawimage(client, a+1);
1267 76193d7c 2003-09-30 devnull ni = BGSHORT(a+5);
1268 76193d7c 2003-09-30 devnull if(ni < 0){
1269 76193d7c 2003-09-30 devnull err = "negative cout in polygon";
1270 76193d7c 2003-09-30 devnull goto error;
1272 76193d7c 2003-09-30 devnull e0 = BGLONG(a+7);
1273 76193d7c 2003-09-30 devnull e1 = BGLONG(a+11);
1275 76193d7c 2003-09-30 devnull if(*a == 'p'){
1276 76193d7c 2003-09-30 devnull j = BGLONG(a+15);
1277 76193d7c 2003-09-30 devnull if(j < 0){
1278 76193d7c 2003-09-30 devnull err = "negative polygon line width";
1279 76193d7c 2003-09-30 devnull goto error;
1282 76193d7c 2003-09-30 devnull src = drawimage(client, a+19);
1283 76193d7c 2003-09-30 devnull if(!dst || !src)
1284 76193d7c 2003-09-30 devnull goto Enodrawimage;
1285 76193d7c 2003-09-30 devnull drawpoint(&sp, a+23);
1286 76193d7c 2003-09-30 devnull drawpoint(&p, a+31);
1288 76193d7c 2003-09-30 devnull pp = mallocz(ni*sizeof(Point), 1);
1289 76193d7c 2003-09-30 devnull if(pp == nil)
1290 76193d7c 2003-09-30 devnull goto Enomem;
1291 76193d7c 2003-09-30 devnull doflush = 0;
1292 76193d7c 2003-09-30 devnull if(dstid==0 || (dst->layer && dst->layer->screen->image->data == screenimage->data))
1293 76193d7c 2003-09-30 devnull doflush = 1; /* simplify test in loop */
1294 76193d7c 2003-09-30 devnull ox = oy = 0;
1295 76193d7c 2003-09-30 devnull esize = 0;
1296 76193d7c 2003-09-30 devnull u = a+m;
1297 76193d7c 2003-09-30 devnull for(y=0; y<ni; y++){
1299 76193d7c 2003-09-30 devnull oesize = esize;
1300 76193d7c 2003-09-30 devnull u = drawcoord(u, a+n, ox, &p.x);
1302 76193d7c 2003-09-30 devnull goto Eshortdraw;
1303 76193d7c 2003-09-30 devnull u = drawcoord(u, a+n, oy, &p.y);
1305 76193d7c 2003-09-30 devnull goto Eshortdraw;
1306 76193d7c 2003-09-30 devnull ox = p.x;
1307 76193d7c 2003-09-30 devnull oy = p.y;
1308 76193d7c 2003-09-30 devnull if(doflush){
1309 76193d7c 2003-09-30 devnull esize = j;
1310 76193d7c 2003-09-30 devnull if(*a == 'p'){
1311 76193d7c 2003-09-30 devnull if(y == 0){
1312 76193d7c 2003-09-30 devnull c = memlineendsize(e0);
1313 76193d7c 2003-09-30 devnull if(c > esize)
1314 76193d7c 2003-09-30 devnull esize = c;
1316 76193d7c 2003-09-30 devnull if(y == ni-1){
1317 76193d7c 2003-09-30 devnull c = memlineendsize(e1);
1318 76193d7c 2003-09-30 devnull if(c > esize)
1319 76193d7c 2003-09-30 devnull esize = c;
1322 76193d7c 2003-09-30 devnull if(*a=='P' && e0!=1 && e0 !=~0)
1323 76193d7c 2003-09-30 devnull r = dst->clipr;
1324 76193d7c 2003-09-30 devnull else if(y > 0){
1325 76193d7c 2003-09-30 devnull r = Rect(q.x-oesize, q.y-oesize, q.x+oesize+1, q.y+oesize+1);
1326 76193d7c 2003-09-30 devnull combinerect(&r, Rect(p.x-esize, p.y-esize, p.x+esize+1, p.y+esize+1));
1328 76193d7c 2003-09-30 devnull if(rectclip(&r, dst->clipr)) /* should perhaps be an arg to dstflush */
1329 76193d7c 2003-09-30 devnull dstflush(dstid, dst, r);
1331 76193d7c 2003-09-30 devnull pp[y] = p;
1333 76193d7c 2003-09-30 devnull if(y == 1)
1334 76193d7c 2003-09-30 devnull dstflush(dstid, dst, Rect(p.x-esize, p.y-esize, p.x+esize+1, p.y+esize+1));
1335 76193d7c 2003-09-30 devnull op = drawclientop(client);
1336 76193d7c 2003-09-30 devnull if(*a == 'p')
1337 76193d7c 2003-09-30 devnull mempoly(dst, pp, ni, e0, e1, j, src, sp, op);
1339 76193d7c 2003-09-30 devnull memfillpoly(dst, pp, ni, e0, src, sp, op);
1340 76193d7c 2003-09-30 devnull free(pp);
1341 76193d7c 2003-09-30 devnull m = u-a;
1342 76193d7c 2003-09-30 devnull continue;
1344 76193d7c 2003-09-30 devnull /* read: 'r' id[4] R[4*4] */
1345 76193d7c 2003-09-30 devnull case 'r':
1346 76193d7c 2003-09-30 devnull m = 1+4+4*4;
1347 76193d7c 2003-09-30 devnull if(n < m)
1348 76193d7c 2003-09-30 devnull goto Eshortdraw;
1349 76193d7c 2003-09-30 devnull i = drawimage(client, a+1);
1351 76193d7c 2003-09-30 devnull goto Enodrawimage;
1352 76193d7c 2003-09-30 devnull drawrectangle(&r, a+5);
1353 76193d7c 2003-09-30 devnull if(!rectinrect(r, i->r))
1354 76193d7c 2003-09-30 devnull goto Ereadoutside;
1355 76193d7c 2003-09-30 devnull c = bytesperline(r, i->depth);
1356 76193d7c 2003-09-30 devnull c *= Dy(r);
1357 76193d7c 2003-09-30 devnull free(client->readdata);
1358 76193d7c 2003-09-30 devnull client->readdata = mallocz(c, 0);
1359 76193d7c 2003-09-30 devnull if(client->readdata == nil){
1360 76193d7c 2003-09-30 devnull err = "readimage malloc failed";
1361 76193d7c 2003-09-30 devnull goto error;
1363 76193d7c 2003-09-30 devnull client->nreaddata = memunload(i, r, client->readdata, c);
1364 76193d7c 2003-09-30 devnull if(client->nreaddata < 0){
1365 76193d7c 2003-09-30 devnull free(client->readdata);
1366 76193d7c 2003-09-30 devnull client->readdata = nil;
1367 76193d7c 2003-09-30 devnull err = "bad readimage call";
1368 76193d7c 2003-09-30 devnull goto error;
1370 76193d7c 2003-09-30 devnull continue;
1372 76193d7c 2003-09-30 devnull /* string: 's' dstid[4] srcid[4] fontid[4] P[2*4] clipr[4*4] sp[2*4] ni[2] ni*(index[2]) */
1373 76193d7c 2003-09-30 devnull /* stringbg: 'x' dstid[4] srcid[4] fontid[4] P[2*4] clipr[4*4] sp[2*4] ni[2] bgid[4] bgpt[2*4] ni*(index[2]) */
1374 76193d7c 2003-09-30 devnull case 's':
1375 76193d7c 2003-09-30 devnull case 'x':
1376 76193d7c 2003-09-30 devnull m = 1+4+4+4+2*4+4*4+2*4+2;
1377 76193d7c 2003-09-30 devnull if(*a == 'x')
1378 76193d7c 2003-09-30 devnull m += 4+2*4;
1379 76193d7c 2003-09-30 devnull if(n < m)
1380 76193d7c 2003-09-30 devnull goto Eshortdraw;
1382 76193d7c 2003-09-30 devnull dst = drawimage(client, a+1);
1383 76193d7c 2003-09-30 devnull dstid = BGLONG(a+1);
1384 76193d7c 2003-09-30 devnull src = drawimage(client, a+5);
1385 76193d7c 2003-09-30 devnull if(!dst || !src)
1386 76193d7c 2003-09-30 devnull goto Enodrawimage;
1387 76193d7c 2003-09-30 devnull font = drawlookup(client, BGLONG(a+9), 1);
1388 76193d7c 2003-09-30 devnull if(font == 0)
1389 76193d7c 2003-09-30 devnull goto Enodrawimage;
1390 76193d7c 2003-09-30 devnull if(font->nfchar == 0)
1391 76193d7c 2003-09-30 devnull goto Enotfont;
1392 76193d7c 2003-09-30 devnull drawpoint(&p, a+13);
1393 76193d7c 2003-09-30 devnull drawrectangle(&r, a+21);
1394 76193d7c 2003-09-30 devnull drawpoint(&sp, a+37);
1395 76193d7c 2003-09-30 devnull ni = BGSHORT(a+45);
1396 76193d7c 2003-09-30 devnull u = a+m;
1397 76193d7c 2003-09-30 devnull m += ni*2;
1398 76193d7c 2003-09-30 devnull if(n < m)
1399 76193d7c 2003-09-30 devnull goto Eshortdraw;
1400 76193d7c 2003-09-30 devnull clipr = dst->clipr;
1401 76193d7c 2003-09-30 devnull dst->clipr = r;
1402 76193d7c 2003-09-30 devnull op = drawclientop(client);
1403 76193d7c 2003-09-30 devnull if(*a == 'x'){
1404 76193d7c 2003-09-30 devnull /* paint background */
1405 76193d7c 2003-09-30 devnull l = drawimage(client, a+47);
1407 76193d7c 2003-09-30 devnull goto Enodrawimage;
1408 76193d7c 2003-09-30 devnull drawpoint(&q, a+51);
1409 76193d7c 2003-09-30 devnull r.min.x = p.x;
1410 76193d7c 2003-09-30 devnull r.min.y = p.y-font->ascent;
1411 76193d7c 2003-09-30 devnull r.max.x = p.x;
1412 76193d7c 2003-09-30 devnull r.max.y = r.min.y+Dy(font->image->r);
1413 76193d7c 2003-09-30 devnull j = ni;
1414 76193d7c 2003-09-30 devnull while(--j >= 0){
1415 76193d7c 2003-09-30 devnull ci = BGSHORT(u);
1416 76193d7c 2003-09-30 devnull if(ci<0 || ci>=font->nfchar){
1417 76193d7c 2003-09-30 devnull dst->clipr = clipr;
1418 76193d7c 2003-09-30 devnull goto Eindex;
1420 76193d7c 2003-09-30 devnull r.max.x += font->fchar[ci].width;
1421 76193d7c 2003-09-30 devnull u += 2;
1423 76193d7c 2003-09-30 devnull memdraw(dst, r, l, q, memopaque, ZP, op);
1424 76193d7c 2003-09-30 devnull u -= 2*ni;
1427 76193d7c 2003-09-30 devnull while(--ni >= 0){
1428 76193d7c 2003-09-30 devnull ci = BGSHORT(u);
1429 76193d7c 2003-09-30 devnull if(ci<0 || ci>=font->nfchar){
1430 76193d7c 2003-09-30 devnull dst->clipr = clipr;
1431 76193d7c 2003-09-30 devnull goto Eindex;
1433 76193d7c 2003-09-30 devnull q = drawchar(dst, q, src, &sp, font, ci, op);
1434 76193d7c 2003-09-30 devnull u += 2;
1436 76193d7c 2003-09-30 devnull dst->clipr = clipr;
1437 76193d7c 2003-09-30 devnull p.y -= font->ascent;
1438 76193d7c 2003-09-30 devnull dstflush(dstid, dst, Rect(p.x, p.y, q.x, p.y+Dy(font->image->r)));
1439 76193d7c 2003-09-30 devnull continue;
1441 76193d7c 2003-09-30 devnull /* use public screen: 'S' id[4] chan[4] */
1442 76193d7c 2003-09-30 devnull case 'S':
1443 76193d7c 2003-09-30 devnull m = 1+4+4;
1444 76193d7c 2003-09-30 devnull if(n < m)
1445 76193d7c 2003-09-30 devnull goto Eshortdraw;
1446 76193d7c 2003-09-30 devnull dstid = BGLONG(a+1);
1447 76193d7c 2003-09-30 devnull if(dstid == 0)
1448 76193d7c 2003-09-30 devnull goto Ebadarg;
1449 76193d7c 2003-09-30 devnull dscrn = drawlookupdscreen(dstid);
1450 76193d7c 2003-09-30 devnull if(dscrn==0 || (dscrn->public==0 && dscrn->owner!=client))
1451 76193d7c 2003-09-30 devnull goto Enodrawscreen;
1452 76193d7c 2003-09-30 devnull if(dscrn->screen->image->chan != BGLONG(a+5)){
1453 76193d7c 2003-09-30 devnull err = "inconsistent chan";
1454 76193d7c 2003-09-30 devnull goto error;
1456 76193d7c 2003-09-30 devnull if(drawinstallscreen(client, dscrn, 0, 0, 0, 0) == 0)
1457 76193d7c 2003-09-30 devnull goto Edrawmem;
1458 76193d7c 2003-09-30 devnull continue;
1460 76193d7c 2003-09-30 devnull /* top or bottom windows: 't' top[1] nw[2] n*id[4] */
1461 76193d7c 2003-09-30 devnull case 't':
1462 76193d7c 2003-09-30 devnull m = 1+1+2;
1463 76193d7c 2003-09-30 devnull if(n < m)
1464 76193d7c 2003-09-30 devnull goto Eshortdraw;
1465 76193d7c 2003-09-30 devnull nw = BGSHORT(a+2);
1466 76193d7c 2003-09-30 devnull if(nw < 0)
1467 76193d7c 2003-09-30 devnull goto Ebadarg;
1468 76193d7c 2003-09-30 devnull if(nw == 0)
1469 76193d7c 2003-09-30 devnull continue;
1470 76193d7c 2003-09-30 devnull m += nw*4;
1471 76193d7c 2003-09-30 devnull if(n < m)
1472 76193d7c 2003-09-30 devnull goto Eshortdraw;
1473 76193d7c 2003-09-30 devnull lp = mallocz(nw*sizeof(Memimage*), 1);
1474 76193d7c 2003-09-30 devnull if(lp == 0)
1475 76193d7c 2003-09-30 devnull goto Enomem;
1476 76193d7c 2003-09-30 devnull for(j=0; j<nw; j++){
1477 76193d7c 2003-09-30 devnull lp[j] = drawimage(client, a+1+1+2+j*4);
1478 76193d7c 2003-09-30 devnull if(lp[j] == nil){
1479 76193d7c 2003-09-30 devnull free(lp);
1480 76193d7c 2003-09-30 devnull goto Enodrawimage;
1483 76193d7c 2003-09-30 devnull if(lp[0]->layer == 0){
1484 76193d7c 2003-09-30 devnull err = "images are not windows";
1485 76193d7c 2003-09-30 devnull free(lp);
1486 76193d7c 2003-09-30 devnull goto error;
1488 76193d7c 2003-09-30 devnull for(j=1; j<nw; j++)
1489 76193d7c 2003-09-30 devnull if(lp[j]->layer->screen != lp[0]->layer->screen){
1490 76193d7c 2003-09-30 devnull err = "images not on same screen";
1491 76193d7c 2003-09-30 devnull free(lp);
1492 76193d7c 2003-09-30 devnull goto error;
1494 76193d7c 2003-09-30 devnull if(a[1])
1495 76193d7c 2003-09-30 devnull memltofrontn(lp, nw);
1497 76193d7c 2003-09-30 devnull memltorearn(lp, nw);
1498 76193d7c 2003-09-30 devnull if(lp[0]->layer->screen->image->data == screenimage->data)
1499 76193d7c 2003-09-30 devnull for(j=0; j<nw; j++)
1500 76193d7c 2003-09-30 devnull addflush(lp[j]->layer->screenr);
1501 76193d7c 2003-09-30 devnull free(lp);
1502 76193d7c 2003-09-30 devnull ll = drawlookup(client, BGLONG(a+1+1+2), 1);
1503 76193d7c 2003-09-30 devnull drawrefreshscreen(ll, client);
1504 76193d7c 2003-09-30 devnull continue;
1506 76193d7c 2003-09-30 devnull /* visible: 'v' */
1507 76193d7c 2003-09-30 devnull case 'v':
1509 76193d7c 2003-09-30 devnull drawflush();
1510 76193d7c 2003-09-30 devnull continue;
1512 76193d7c 2003-09-30 devnull /* write: 'y' id[4] R[4*4] data[x*1] */
1513 76193d7c 2003-09-30 devnull /* write from compressed data: 'Y' id[4] R[4*4] data[x*1] */
1514 76193d7c 2003-09-30 devnull case 'y':
1515 76193d7c 2003-09-30 devnull case 'Y':
1516 76193d7c 2003-09-30 devnull m = 1+4+4*4;
1517 76193d7c 2003-09-30 devnull if(n < m)
1518 76193d7c 2003-09-30 devnull goto Eshortdraw;
1519 76193d7c 2003-09-30 devnull dstid = BGLONG(a+1);
1520 76193d7c 2003-09-30 devnull dst = drawimage(client, a+1);
1521 76193d7c 2003-09-30 devnull if(!dst)
1522 76193d7c 2003-09-30 devnull goto Enodrawimage;
1523 76193d7c 2003-09-30 devnull drawrectangle(&r, a+5);
1524 76193d7c 2003-09-30 devnull if(!rectinrect(r, dst->r))
1525 76193d7c 2003-09-30 devnull goto Ewriteoutside;
1526 76193d7c 2003-09-30 devnull y = memload(dst, r, a+m, n-m, *a=='Y');
1527 76193d7c 2003-09-30 devnull if(y < 0){
1528 76193d7c 2003-09-30 devnull err = "bad writeimage call";
1529 76193d7c 2003-09-30 devnull goto error;
1531 76193d7c 2003-09-30 devnull dstflush(dstid, dst, r);
1532 76193d7c 2003-09-30 devnull m += y;
1533 76193d7c 2003-09-30 devnull continue;
1536 161060a4 2003-10-11 devnull qunlock(&sdraw.lk);
1537 76193d7c 2003-09-30 devnull return oldn - n;
1539 76193d7c 2003-09-30 devnull Enodrawimage:
1540 76193d7c 2003-09-30 devnull err = "unknown id for draw image";
1541 76193d7c 2003-09-30 devnull goto error;
1542 76193d7c 2003-09-30 devnull Enodrawscreen:
1543 76193d7c 2003-09-30 devnull err = "unknown id for draw screen";
1544 76193d7c 2003-09-30 devnull goto error;
1545 76193d7c 2003-09-30 devnull Eshortdraw:
1546 76193d7c 2003-09-30 devnull err = "short draw message";
1547 76193d7c 2003-09-30 devnull goto error;
1549 76193d7c 2003-09-30 devnull Eshortread:
1550 76193d7c 2003-09-30 devnull err = "draw read too short";
1551 76193d7c 2003-09-30 devnull goto error;
1553 76193d7c 2003-09-30 devnull Eimageexists:
1554 76193d7c 2003-09-30 devnull err = "image id in use";
1555 76193d7c 2003-09-30 devnull goto error;
1556 76193d7c 2003-09-30 devnull Escreenexists:
1557 76193d7c 2003-09-30 devnull err = "screen id in use";
1558 76193d7c 2003-09-30 devnull goto error;
1559 76193d7c 2003-09-30 devnull Edrawmem:
1560 76193d7c 2003-09-30 devnull err = "image memory allocation failed";
1561 76193d7c 2003-09-30 devnull goto error;
1562 76193d7c 2003-09-30 devnull Ereadoutside:
1563 76193d7c 2003-09-30 devnull err = "readimage outside image";
1564 76193d7c 2003-09-30 devnull goto error;
1565 76193d7c 2003-09-30 devnull Ewriteoutside:
1566 76193d7c 2003-09-30 devnull err = "writeimage outside image";
1567 76193d7c 2003-09-30 devnull goto error;
1568 76193d7c 2003-09-30 devnull Enotfont:
1569 76193d7c 2003-09-30 devnull err = "image not a font";
1570 76193d7c 2003-09-30 devnull goto error;
1571 76193d7c 2003-09-30 devnull Eindex:
1572 76193d7c 2003-09-30 devnull err = "character index out of range";
1573 76193d7c 2003-09-30 devnull goto error;
1575 76193d7c 2003-09-30 devnull Enoclient:
1576 76193d7c 2003-09-30 devnull err = "no such draw client";
1577 76193d7c 2003-09-30 devnull goto error;
1578 76193d7c 2003-09-30 devnull Edepth:
1579 76193d7c 2003-09-30 devnull err = "image has bad depth";
1580 76193d7c 2003-09-30 devnull goto error;
1581 76193d7c 2003-09-30 devnull Enameused:
1582 76193d7c 2003-09-30 devnull err = "image name in use";
1583 76193d7c 2003-09-30 devnull goto error;
1585 76193d7c 2003-09-30 devnull Enoname:
1586 76193d7c 2003-09-30 devnull err = "no image with that name";
1587 76193d7c 2003-09-30 devnull goto error;
1588 76193d7c 2003-09-30 devnull Eoldname:
1589 76193d7c 2003-09-30 devnull err = "named image no longer valid";
1590 76193d7c 2003-09-30 devnull goto error;
1591 76193d7c 2003-09-30 devnull Enamed:
1592 76193d7c 2003-09-30 devnull err = "image already has name";
1593 76193d7c 2003-09-30 devnull goto error;
1594 76193d7c 2003-09-30 devnull Ewrongname:
1595 76193d7c 2003-09-30 devnull err = "wrong name for image";
1596 76193d7c 2003-09-30 devnull goto error;
1597 76193d7c 2003-09-30 devnull Enomem:
1598 76193d7c 2003-09-30 devnull err = "out of memory";
1599 76193d7c 2003-09-30 devnull goto error;
1600 76193d7c 2003-09-30 devnull Ebadarg:
1601 76193d7c 2003-09-30 devnull err = "bad argument in draw message";
1602 76193d7c 2003-09-30 devnull goto error;
1605 161060a4 2003-10-11 devnull werrstr("%s", err);
1606 161060a4 2003-10-11 devnull qunlock(&sdraw.lk);
1607 76193d7c 2003-09-30 devnull return -1;
