| rsc | ed7c8e8 | 2003-09-30 17:47:42 +0000 | [diff] [blame] | 1 | #include <u.h> |
| 2 | #include <libc.h> |
| 3 | #include <draw.h> |
| 4 | |
| 5 | int |
| 6 | cloadimage(Image *i, Rectangle r, uchar *data, int ndata) |
| 7 | { |
| 8 | int m, nb, miny, maxy, ncblock; |
| 9 | uchar *a; |
| 10 | |
| 11 | if(!rectinrect(r, i->r)){ |
| 12 | werrstr("cloadimage: bad rectangle"); |
| 13 | return -1; |
| 14 | } |
| 15 | |
| 16 | miny = r.min.y; |
| 17 | m = 0; |
| 18 | ncblock = _compblocksize(r, i->depth); |
| 19 | while(miny != r.max.y){ |
| 20 | maxy = atoi((char*)data+0*12); |
| 21 | nb = atoi((char*)data+1*12); |
| 22 | if(maxy<=miny || r.max.y<maxy){ |
| 23 | werrstr("creadimage: bad maxy %d", maxy); |
| 24 | return -1; |
| 25 | } |
| 26 | data += 2*12; |
| 27 | ndata -= 2*12; |
| 28 | m += 2*12; |
| 29 | if(nb<=0 || ncblock<nb || nb>ndata){ |
| 30 | werrstr("creadimage: bad count %d", nb); |
| 31 | return -1; |
| 32 | } |
| 33 | a = bufimage(i->display, 21+nb); |
| 34 | if(a == nil) |
| 35 | return -1; |
| 36 | a[0] = 'Y'; |
| 37 | BPLONG(a+1, i->id); |
| 38 | BPLONG(a+5, r.min.x); |
| 39 | BPLONG(a+9, miny); |
| 40 | BPLONG(a+13, r.max.x); |
| 41 | BPLONG(a+17, maxy); |
| 42 | memmove(a+21, data, nb); |
| 43 | miny = maxy; |
| 44 | data += nb; |
| 45 | ndata += nb; |
| 46 | m += nb; |
| 47 | } |
| 48 | return m; |
| 49 | } |
