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allow userland to switch to 16bit colour

This commit is contained in:
macallan 2024-04-24 11:49:58 +00:00
parent 6c62cea2ba
commit 93f802c8d4
1 changed files with 13 additions and 7 deletions
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20
sys/arch/sparc/dev/cgfourteen.c
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@ -1,4 +1,4 @@
/* $NetBSD: cgfourteen.c,v 1.96 2023/12/20 05:33:18 thorpej Exp $ */
/* $NetBSD: cgfourteen.c,v 1.97 2024/04/24 11:49:58 macallan Exp $ */
/*
* Copyright (c) 1996
@ -1072,22 +1072,28 @@ cg14_set_depth(struct cgfourteen_softc *sc, int depth)
CG14_MCTL, CG14_MCTL_ENABLEVID |
CG14_MCTL_PIXMODE_8 | CG14_MCTL_POWERCTL);
sc->sc_depth = 8;
/* everything is CLUT1 */
for (i = 0; i < CG14_CLUT_SIZE; i++)
sc->sc_xlut->xlut_lut[i] = 0;
break;
case 16:
bus_space_write_1(sc->sc_bustag, sc->sc_regh,
CG14_MCTL, CG14_MCTL_ENABLEVID |
CG14_MCTL_PIXMODE_16 | CG14_MCTL_POWERCTL);
sc->sc_depth = 16;
break;
case 32:
bus_space_write_1(sc->sc_bustag, sc->sc_regh,
CG14_MCTL, CG14_MCTL_ENABLEVID |
CG14_MCTL_PIXMODE_32 | CG14_MCTL_POWERCTL);
sc->sc_depth = 32;
for (i = 0; i < CG14_CLUT_SIZE; i++)
sc->sc_xlut->xlut_lut[i] = 0;
break;
default:
printf("%s: can't change to depth %d\n",
device_xname(sc->sc_dev), depth);
return;
}
/* everything is CLUT1 */
for (i = 0; i < CG14_CLUT_SIZE; i++)
sc->sc_xlut->xlut_lut[i] = 0;
}
static void
@ -1432,7 +1438,7 @@ cg14_bitblt_gc(void *cookie, int xs, int ys, int xd, int yd,
saddr = sc->sc_fb_paddr + xs + stride * ys;
daddr = sc->sc_fb_paddr + xd + stride * yd;
if (saddr & 3) {
swi += saddr & 3;
dreg += saddr & 3;