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| author | Antonino A. Daplas <adaplas@gmail.com> | 2005-11-07 01:00:39 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-07 07:53:51 -0800 |
| commit | b4d8aea6d66aabc1d79aaeb1ecc90562abb8f575 (patch) | |
| tree | 9d1acb46481ba54827463ae2d8f79821d5119953 /drivers/video/cfbfillrect.c | |
| parent | dd0314f7bb407bc4bdb3ea769b9c8a3a5d39ffd7 (diff) | |
| download | linux-3.10-b4d8aea6d66aabc1d79aaeb1ecc90562abb8f575.tar.gz linux-3.10-b4d8aea6d66aabc1d79aaeb1ecc90562abb8f575.tar.bz2 linux-3.10-b4d8aea6d66aabc1d79aaeb1ecc90562abb8f575.zip | |
[PATCH] fbdev: Remove software clipping from drawing functions
Remove software clipping from imageblit, fillrect and copyarea. Clipping is
not needed because the console layer assures that reads/writes doest not
happen beyond the extents of the framebuffer. And software clipping tends to
hide bugs, if they do exist.
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/cfbfillrect.c')
| -rw-r--r-- | drivers/video/cfbfillrect.c | 24 |
1 files changed, 2 insertions, 22 deletions
diff --git a/drivers/video/cfbfillrect.c b/drivers/video/cfbfillrect.c index e4fc42b013e..167d9314e6e 100644 --- a/drivers/video/cfbfillrect.c +++ b/drivers/video/cfbfillrect.c @@ -344,7 +344,8 @@ bitfill_unaligned_rev(unsigned long __iomem *dst, int dst_idx, unsigned long pat void cfb_fillrect(struct fb_info *p, const struct fb_fillrect *rect) { - unsigned long x2, y2, vxres, vyres, height, width, pat, fg; + unsigned long pat, fg; + unsigned long width = rect->width, height = rect->height; int bits = BITS_PER_LONG, bytes = bits >> 3; u32 bpp = p->var.bits_per_pixel; unsigned long __iomem *dst; @@ -353,27 +354,6 @@ void cfb_fillrect(struct fb_info *p, const struct fb_fillrect *rect) if (p->state != FBINFO_STATE_RUNNING) return; - /* We want rotation but lack hardware to do it for us. */ - if (!p->fbops->fb_rotate && p->var.rotate) { - } - - vxres = p->var.xres_virtual; - vyres = p->var.yres_virtual; - - if (!rect->width || !rect->height || - rect->dx > vxres || rect->dy > vyres) - return; - - /* We could use hardware clipping but on many cards you get around - * hardware clipping by writing to framebuffer directly. */ - - x2 = rect->dx + rect->width; - y2 = rect->dy + rect->height; - x2 = x2 < vxres ? x2 : vxres; - y2 = y2 < vyres ? y2 : vyres; - width = x2 - rect->dx; - height = y2 - rect->dy; - if (p->fix.visual == FB_VISUAL_TRUECOLOR || p->fix.visual == FB_VISUAL_DIRECTCOLOR ) fg = ((u32 *) (p->pseudo_palette))[rect->color]; |