58dc03cec0
making sure to close the dot in every kproc appears repetitive, so instead stop inheriting the dot in kproc() as this is usually never what you wanted in the first place.
345 lines
5.6 KiB
C
345 lines
5.6 KiB
C
#include "u.h"
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#include "../port/lib.h"
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#include "mem.h"
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#include "dat.h"
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#include "fns.h"
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#include "io.h"
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#include "../port/error.h"
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#define Image IMAGE
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#include <draw.h>
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#include <memdraw.h>
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#include <cursor.h>
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#include "screen.h"
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Memimage *gscreen;
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static struct {
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Rendez;
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Rectangle rect;
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Proc *proc;
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uintptr addr;
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} fbscreen;
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static struct {
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Rendez;
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Cursor;
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Proc *proc;
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uintptr addr;
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} hwcursor;
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void
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cursoron(void)
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{
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wakeup(&hwcursor);
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}
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void
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cursoroff(void)
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{
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}
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void
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setcursor(Cursor *curs)
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{
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hwcursor.Cursor = *curs;
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}
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void
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flushmemscreen(Rectangle r)
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{
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if(badrect(fbscreen.rect))
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fbscreen.rect = r;
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else
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combinerect(&fbscreen.rect, r);
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wakeup(&fbscreen);
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}
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void
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screeninit(void)
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{
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conf.monitor = 1;
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}
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uchar*
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attachscreen(Rectangle *r, ulong *chan, int* d, int *width, int *softscreen)
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{
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if(gscreen == nil)
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return nil;
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*r = gscreen->r;
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*d = gscreen->depth;
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*chan = gscreen->chan;
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*width = gscreen->width;
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/* make devdraw use gscreen->data */
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*softscreen = 0xa110c;
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gscreen->data->ref++;
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return gscreen->data->bdata;
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}
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void
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getcolor(ulong, ulong *, ulong *, ulong *)
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{
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}
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int
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setcolor(ulong, ulong, ulong, ulong)
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{
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return 0;
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}
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void
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blankscreen(int)
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{
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}
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static void
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cursorproc(void *arg)
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{
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uchar *set, *clr;
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u32int *reg;
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Point xy;
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int i;
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for(i = 0; i < NSEG; i++)
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if(up->seg[i] == nil && i != ESEG)
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break;
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if(i == NSEG)
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panic(up->text);
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up->seg[i] = arg;
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hwcursor.proc = up;
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if(waserror()){
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hwcursor.addr = 0;
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hwcursor.proc = nil;
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pexit("detached", 1);
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}
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reg = (u32int*)hwcursor.addr;
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for(;;){
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eqlock(&drawlock);
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xy = addpt(mousexy(), hwcursor.offset);
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qunlock(&drawlock);
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set = hwcursor.set;
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clr = hwcursor.clr;
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for(i=0; i<8; i++){
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reg[0x70/4 + i] = clr[i*4]<<24 | clr[i*4+1]<<16 | clr[i*4+2]<<8 | clr[i*4+3];
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reg[0x90/4 + i] = set[i*4]<<24 | set[i*4+1]<<16 | set[i*4+2]<<8 | set[i*4+3];
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}
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reg[0] = (xy.x<<16) | (xy.y&0xFFFF);
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sleep(&hwcursor, return0, nil);
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}
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}
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void
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mousectl(Cmdbuf *cb)
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{
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Segment *s;
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uintptr addr;
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if(strcmp(cb->f[0], "addr") == 0 && cb->nf == 2){
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s = nil;
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addr = strtoul(cb->f[1], 0, 0);
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if(addr != 0){
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if((s = seg(up, addr, 0)) == nil || (s->type&SG_RONLY) != 0
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|| (addr&3) != 0 || addr+0xB0 > s->top)
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error(Ebadarg);
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incref(s);
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}
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if(hwcursor.proc != nil){
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postnote(hwcursor.proc, 0, "die", NUser);
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while(hwcursor.proc != nil)
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sched();
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}
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if(addr != 0){
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hwcursor.addr = addr;
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kproc("cursor", cursorproc, s);
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}
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return;
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}
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if(strcmp(cb->f[0], "linear") == 0){
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mouseaccelerate(0);
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return;
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}
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if(strcmp(cb->f[0], "accelerated") == 0){
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mouseaccelerate(cb->nf == 1 ? 1 : atoi(cb->f[1]));
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return;
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}
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}
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static int
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isflush(void *)
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{
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return !badrect(fbscreen.rect);
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}
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static void
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screenproc(void *arg)
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{
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int sno, n, w;
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uchar *sp, *dp, *top;
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Rectangle r;
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for(sno = 0; sno < NSEG; sno++)
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if(up->seg[sno] == nil && sno != ESEG)
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break;
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if(sno == NSEG)
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panic(up->text);
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up->seg[sno] = arg;
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fbscreen.proc = up;
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if(waserror()){
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fbscreen.addr = 0;
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fbscreen.proc = nil;
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pexit("detached", 1);
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}
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for(;;){
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sleep(&fbscreen, isflush, nil);
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eqlock(&drawlock);
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r = fbscreen.rect;
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fbscreen.rect = ZR;
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if(badrect(r) || gscreen == nil || rectclip(&r, gscreen->r) == 0){
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qunlock(&drawlock);
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continue;
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}
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w = sizeof(ulong)*gscreen->width;
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n = bytesperline(r, gscreen->depth);
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sp = byteaddr(gscreen, r.min);
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dp = (uchar*)fbscreen.addr + (sp - &gscreen->data->bdata[gscreen->zero]);
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top = (uchar*)up->seg[sno]->top;
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if(dp+(Dy(r)-1)*w+n > top)
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r.max.y = (top-(uchar*)fbscreen.addr)/w;
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qunlock(&drawlock);
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while(r.min.y < r.max.y) {
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memmove(dp, sp, n);
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sp += w;
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dp += w;
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r.min.y++;
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}
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}
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}
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enum {
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CMaddr,
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CMsize,
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CMinit,
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};
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static Cmdtab fbctlmsg[] = {
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CMaddr, "addr", 2,
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CMsize, "size", 3,
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CMinit, "init", 1,
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};
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long
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fbctlwrite(Chan*, void *a, long n, vlong)
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{
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Cmdbuf *cb;
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Cmdtab *ct;
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ulong x, y, z, chan;
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Segment *s;
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uintptr addr;
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char *p;
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cb = parsecmd(a, n);
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if(waserror()){
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free(cb);
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nexterror();
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}
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ct = lookupcmd(cb, fbctlmsg, nelem(fbctlmsg));
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switch(ct->index){
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case CMaddr:
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s = nil;
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addr = strtoul(cb->f[1], 0, 0);
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if(addr != 0){
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if((s = seg(up, addr, 0)) == nil || (s->type&SG_RONLY) != 0)
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error(Ebadarg);
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incref(s);
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}
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if(fbscreen.proc != nil){
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postnote(fbscreen.proc, 0, "die", NUser);
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while(fbscreen.proc != nil)
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sched();
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}
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if(addr != 0){
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fbscreen.addr = addr;
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kproc("screen", screenproc, s);
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}
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break;
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case CMsize:
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x = strtoul(cb->f[1], &p, 0);
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if(x == 0 || x > 10240)
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error(Ebadarg);
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if(*p)
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p++;
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y = strtoul(p, &p, 0);
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if(y == 0 || y > 10240)
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error(Ebadarg);
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if(*p)
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p++;
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z = strtoul(p, &p, 0);
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if((chan = strtochan(cb->f[2])) == 0)
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error("bad channel");
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if(chantodepth(chan) != z)
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error("depth, channel do not match");
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deletescreenimage();
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eqlock(&drawlock);
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if(memimageinit() < 0){
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qunlock(&drawlock);
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error("memimageinit failed");
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}
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if(gscreen != nil){
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freememimage(gscreen);
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gscreen = nil;
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}
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gscreen = allocmemimage(Rect(0,0,x,y), chan);
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qunlock(&drawlock);
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/* wet floor */
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case CMinit:
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if(gscreen == nil)
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error("no framebuffer");
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resetscreenimage();
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break;
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}
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free(cb);
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poperror();
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return n;
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}
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long
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fbctlread(Chan*, void *a, long n, vlong offset)
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{
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char buf[256], chan[32], *p, *e;
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p = buf;
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e = p + sizeof(buf);
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qlock(&drawlock);
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if(gscreen != nil){
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p = seprint(p, e, "size %dx%dx%d %s\n",
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Dx(gscreen->r), Dy(gscreen->r), gscreen->depth,
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chantostr(chan, gscreen->chan));
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}
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qunlock(&drawlock);
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seprint(p, e, "addr %#p\n", fbscreen.addr);
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return readstr(offset, a, n, buf);
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}
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