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| author | Jung-uk Kim <jkim@FreeBSD.org> | 2010-03-24 15:37:47 +0000 |
|---|---|---|
| committer | Jung-uk Kim <jkim@FreeBSD.org> | 2010-03-24 15:37:47 +0000 |
| commit | 1e161437f8e1defd8dd87315c7fe14317fd568da (patch) | |
| tree | ab25901d4be317fc52f8c8ccdac152659d2f5736 /sys/dev/fb/vga.c | |
| parent | 592a685e337043edc9cbf12c51e300c1994cbd7c (diff) | |
| download | src-1e161437f8e1defd8dd87315c7fe14317fd568da.tar.gz src-1e161437f8e1defd8dd87315c7fe14317fd568da.zip | |
Teach VGA framebuffer about 8-bit palette format for VESA.
Notes
Notes:
svn path=/head/; revision=205604
Diffstat (limited to 'sys/dev/fb/vga.c')
| -rw-r--r-- | sys/dev/fb/vga.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/sys/dev/fb/vga.c b/sys/dev/fb/vga.c index 7d702ad2b8e9..1bcf93507559 100644 --- a/sys/dev/fb/vga.c +++ b/sys/dev/fb/vga.c @@ -1979,6 +1979,7 @@ vga_show_font(video_adapter_t *adp, int page) static int vga_save_palette(video_adapter_t *adp, u_char *palette) { + int bits; int i; prologue(adp, V_ADP_PALETTE, ENODEV); @@ -1988,8 +1989,9 @@ vga_save_palette(video_adapter_t *adp, u_char *palette) * VGA has 6 bit DAC . */ outb(PALRADR, 0x00); + bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; for (i = 0; i < 256*3; ++i) - palette[i] = inb(PALDATA) << 2; + palette[i] = inb(PALDATA) << bits; inb(adp->va_crtc_addr + 6); /* reset flip/flop */ return 0; } @@ -1998,15 +2000,17 @@ static int vga_save_palette2(video_adapter_t *adp, int base, int count, u_char *r, u_char *g, u_char *b) { + int bits; int i; prologue(adp, V_ADP_PALETTE, ENODEV); outb(PALRADR, base); + bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; for (i = 0; i < count; ++i) { - r[i] = inb(PALDATA) << 2; - g[i] = inb(PALDATA) << 2; - b[i] = inb(PALDATA) << 2; + r[i] = inb(PALDATA) << bits; + g[i] = inb(PALDATA) << bits; + b[i] = inb(PALDATA) << bits; } inb(adp->va_crtc_addr + 6); /* reset flip/flop */ return 0; @@ -2021,14 +2025,16 @@ vga_save_palette2(video_adapter_t *adp, int base, int count, static int vga_load_palette(video_adapter_t *adp, u_char *palette) { + int bits; int i; prologue(adp, V_ADP_PALETTE, ENODEV); outb(PIXMASK, 0xff); /* no pixelmask */ outb(PALWADR, 0x00); + bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; for (i = 0; i < 256*3; ++i) - outb(PALDATA, palette[i] >> 2); + outb(PALDATA, palette[i] >> bits); inb(adp->va_crtc_addr + 6); /* reset flip/flop */ outb(ATC, 0x20); /* enable palette */ return 0; @@ -2038,16 +2044,18 @@ static int vga_load_palette2(video_adapter_t *adp, int base, int count, u_char *r, u_char *g, u_char *b) { + int bits; int i; prologue(adp, V_ADP_PALETTE, ENODEV); outb(PIXMASK, 0xff); /* no pixelmask */ outb(PALWADR, base); + bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; for (i = 0; i < count; ++i) { - outb(PALDATA, r[i] >> 2); - outb(PALDATA, g[i] >> 2); - outb(PALDATA, b[i] >> 2); + outb(PALDATA, r[i] >> bits); + outb(PALDATA, g[i] >> bits); + outb(PALDATA, b[i] >> bits); } inb(adp->va_crtc_addr + 6); /* reset flip/flop */ outb(ATC, 0x20); /* enable palette */ |