diff options
| author | Antonino A. Daplas <adaplas@gmail.com> | 2005-11-08 21:39:05 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-09 07:56:34 -0800 |
| commit | 6d83b0bb8e5efda28ce4a1abc78277f1d03e50e5 (patch) | |
| tree | 9fbf5337bb2428f94dcf428b3387f3198b56ad28 /drivers/video | |
| parent | 64c7c8f88559624abdbe12b5da6502e8879f8d28 (diff) | |
[PATCH] savagefb: X-panning fixes
The driver unconditionally sets xpanstep to 2. However, a value of 4
empirically works better at bpp = 8, and 2 for 16 and 32. This buglet was
exposed by the rotation code.
Second fix is the unconditional call to update_start() without verifying if
the offsets are correct. Remove this call, it's not necessary and secondly,
it causes a crash with invalid values.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/savage/savagefb_driver.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/video/savage/savagefb_driver.c b/drivers/video/savage/savagefb_driver.c index f0dfb35e319..09e2f284190 100644 --- a/drivers/video/savage/savagefb_driver.c +++ b/drivers/video/savage/savagefb_driver.c @@ -1315,10 +1315,14 @@ static void savagefb_set_fix(struct fb_info *info) info->fix.line_length = info->var.xres_virtual * info->var.bits_per_pixel / 8; - if (info->var.bits_per_pixel == 8) + if (info->var.bits_per_pixel == 8) { info->fix.visual = FB_VISUAL_PSEUDOCOLOR; - else + info->fix.xpanstep = 4; + } else { info->fix.visual = FB_VISUAL_TRUECOLOR; + info->fix.xpanstep = 2; + } + } #if defined(CONFIG_FB_SAVAGE_ACCEL) @@ -1363,7 +1367,6 @@ static int savagefb_set_par (struct fb_info *info) par->minClock = 10000; savagefb_set_par_int (par); - savagefb_update_start (par, var); fb_set_cmap (&info->cmap, info); savagefb_set_fix(info); savagefb_set_clip(info); @@ -1873,7 +1876,6 @@ static int __devinit savage_init_fb_info (struct fb_info *info, info->fix.type = FB_TYPE_PACKED_PIXELS; info->fix.type_aux = 0; - info->fix.xpanstep = 2; info->fix.ypanstep = 1; info->fix.ywrapstep = 0; info->fix.accel = id->driver_data; |