1990/05313/port/devbit.c (diff list | history)

1990/05151/sys/src/9/port/devbit.c:9,15 – 1990/05313/sys/src/9/port/devbit.c:9,15 (short | long | prev | next)
1990/0324		#include "gnot.h"
1990/0329		extern Font defont0; /* BUG */
1990/05313		extern Font *defont;
1990/0329
1990/0327		/*
1990/0329		* Device (#b/bitblt) is exclusive use on open, so no locks are necessary
1990/05151/sys/src/9/port/devbit.c:24,30 – 1990/05313/sys/src/9/port/devbit.c:24,31
1990/0327		* followed by N blocks. The bitmap pointer is zero if block is free. */
1990/0324		struct{
1990/05313		struct {
1990/0324		Ref;
1990/0327		Bitmap *map; /* arena */ Bitmap *free; /* free list */
1990/05151/sys/src/9/port/devbit.c:53,77 – 1990/05313/sys/src/9/port/devbit.c:54,80
1990/0504		Rendez r; }mouse;
1990/05313		Cursor arrow = { {0, 0}, {0xFF, 0xE0, 0xFF, 0xE0, 0xFF, 0xC0, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x80, 0xFF, 0xC0, 0xFF, 0xE0, 0xE7, 0xF0, 0xE3, 0xF8, 0xC1, 0xFC, 0x00, 0xFE, 0x00, 0x7F, 0x00, 0x3E, 0x00, 0x1C, 0x00, 0x08, }, {0x00, 0x00, 0x7F, 0xC0, 0x7F, 0x00, 0x7C, 0x00, 0x7E, 0x00, 0x7F, 0x00, 0x6F, 0x80, 0x67, 0xC0, 0x43, 0xE0, 0x41, 0xF0, 0x00, 0xF8, 0x00, 0x7C, 0x00, 0x3E, 0x00, 0x1C, 0x00, 0x08, 0x00, 0x00, } };
1990/0504		struct{ Cursor; Lock; int visible; /* on screen */ Rectangle r; /* location */ }cursor = { {{0, 0}, {0xFFE0, 0xFFE0, 0xFFC0, 0xFF00, 0xFF00, 0xFF80, 0xFFC0, 0xFFE0, 0xE7F0, 0xE3F8, 0xC1FC, 0x00FE, 0x007F, 0x003E, 0x001C, 0x0008, }, {0x0000, 0x7FC0, 0x7F00, 0x7C00, 0x7E00, 0x7F00, 0x6F80, 0x67C0, 0x43E0, 0x41F0, 0x00F8, 0x007C, 0x003E, 0x001C, 0x0008, 0x0000, }}, };
1990/05313		}cursor;
1990/0504		ulong setbits[16]; Bitmap set =
1990/05151/sys/src/9/port/devbit.c:103,109 – 1990/05313/sys/src/9/port/devbit.c:106,112
1990/0504		{0, 0, 16, 16} }; void cursortobitmap(void);
1990/05313		void Cursortocursor(Cursor*);
1990/0504		void cursoron(int); void cursoroff(int);
1990/0505		int mousechanged(void*);
1990/05151/sys/src/9/port/devbit.c:140,146 – 1990/05313/sys/src/9/port/devbit.c:143,149
1990/0327		bit.words = ialloc(conf.nbitbyte, 0); bit.nwords = conf.nbitbyte/sizeof(ulong); bit.wfree = bit.words;
1990/0504		cursortobitmap();
1990/05313		Cursortocursor(&arrow);
1990/0324		} void
1990/05151/sys/src/9/port/devbit.c:148,153 – 1990/05313/sys/src/9/port/devbit.c:151,159
1990/0324		{ lock(&bit); unlock(&bit);
1990/05313		if(screen.ldepth > 1) panic("bitinit ldepth>1"); cursorback.ldepth = screen.ldepth;
1990/0504		cursoron(1);
1990/0324		}
1990/05151/sys/src/9/port/devbit.c:192,197 – 1990/05313/sys/src/9/port/devbit.c:198,204
1990/0327		bit.lastid = -1;
1990/0329		bit.init = 1;
1990/05151		bit.ref = 1;
1990/05313		Cursortocursor(&arrow);
1990/0324		unlock(&bit);
1990/05151		}else
1990/0324		incref(&bit);
1990/05151/sys/src/9/port/devbit.c:341,346 – 1990/05313/sys/src/9/port/devbit.c:348,354
1990/0504		int off;
1990/0324		Point pt; Rectangle rect;
1990/05313		Cursor curs;
1990/0327		Bitmap *bp, *src, *dst;
1990/0324		if(c->qid == CHDIR)
1990/05151/sys/src/9/port/devbit.c:368,374 – 1990/05313/sys/src/9/port/devbit.c:376,382
1990/0327		if(m < 18)
1990/0324		error(0, Ebadblt);
1990/0327		v = *(p+1); if(v != 0) /* BUG */
1990/05313		if(v!=0 && v!=1) /* BUG */
1990/0327		error(0, Ebadblt); ws = 1<<(5-v); /* pixels per word */ if(bit.free == 0)
1990/05151/sys/src/9/port/devbit.c:385,393 – 1990/05313/sys/src/9/port/devbit.c:393,401
1990/0327		l = (t+rect.max.x+ws-1)/ws;
1990/0324		}
1990/0327		nw = l*Dy(rect); if(bit.wfree+l+2 > bit.words+bit.nwords){
1990/05313		if(bit.wfree+2+nw > bit.words+bit.nwords){
1990/0327		bitcompact(); if(bit.wfree+l+1 > bit.words+bit.nwords)
1990/05313		if(bit.wfree+2+nw > bit.words+bit.nwords)
1990/0327		error(0, Enobitstore); } bp = bit.free;
1990/05151/sys/src/9/port/devbit.c:453,458 – 1990/05313/sys/src/9/port/devbit.c:461,496
1990/0327		p += 31; break;
1990/05313		case 'c': /* * cursorswitch * 'c' 1 * nothing more: return to arrow; else * Point 8 * clr 32 * set 32 */ if(m == 1){ cursoroff(1); Cursortocursor(&arrow); cursoron(1); m -= 1; p += 1; break; } if(m < 73) error(0, Ebadblt); curs.offset.x = GLONG(p+1); curs.offset.y = GLONG(p+5); memcpy(curs.clr, p+9, 2*16); memcpy(curs.set, p+41, 2*16); cursoroff(1); Cursortocursor(&curs); cursoron(1); m -= 73; p += 73; break;
1990/0327		case 'f': /* * free
1990/05151/sys/src/9/port/devbit.c:502,508 – 1990/05313/sys/src/9/port/devbit.c:540,546
1990/0329		error(0, Ebadblt);
1990/0504		if(off) cursoroff(1);
1990/0329		string(dst, pt, &defont0/*BUG*/, (char*)p, v);
1990/05313		string(dst, pt, defont/*BUG*/, (char*)p, v);
1990/0504		if(off) cursoron(1);
1990/0329		q++;
1990/05151/sys/src/9/port/devbit.c:622,628 – 1990/05313/sys/src/9/port/devbit.c:660,666
1990/0327		void bitfree(Bitmap *bp) { bp->base[1] = 0;
1990/05313		bp->base[-1] = 0;
1990/0327		bp->ldepth = -1; bp->base = (ulong*)bit.free; bit.free = bp;
1990/05151/sys/src/9/port/devbit.c:633,639 – 1990/05313/sys/src/9/port/devbit.c:671,676
1990/0327		{ ulong *p1, *p2; print("bitcompact\n"); p1 = p2 = bit.words; while(p2 < bit.wfree){ if(p2[1] == 0){
1990/05151/sys/src/9/port/devbit.c:648,665 – 1990/05313/sys/src/9/port/devbit.c:685,702
1990/0327		p1 += 2 + p1[0]; } bit.wfree = p1; print("bitcompact done\n");
1990/0329		} void
1990/0504		cursortobitmap(void)
1990/05313		Cursortocursor(Cursor *c)
1990/0329		{
1990/0504		int i; lock(&cursor);
1990/05313		memcpy(&cursor, c, sizeof(Cursor));
1990/0504		for(i=0; i<16; i++){ setbits[i] = cursor.set[i]<<16; clrbits[i] = cursor.clr[i]<<16;
1990/05313		setbits[i] = (c->set[2*i]<<24) + (c->set[2*i+1]<<16); clrbits[i] = (c->clr[2*i]<<24) + (c->clr[2*i+1]<<16);
1990/0504		} unlock(&cursor); }
1990/05151/sys/src/9/port/devbit.c:711,717 – 1990/05313/sys/src/9/port/devbit.c:748,753
1990/0505		mouseclock(void) /* called spl6 */
1990/0504		{ int x, y;                  if(mouse.track && canlock(&cursor)){ x = mouse.xy.x + mouse.dx; if(x < screen.r.min.x)