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s3fb: limit 8x16 rectangles when tileblitting is enabled

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If tileblitting is enabled (text mode), the hardware can only accept 8x16
bitmaps. Advertise this to the upper layer. And to ensure that an appropriate
font is always available, select an 8x16 font in Kconfig.

Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Antonino A. Daplas 2007-05-08 00:39:14 -07:00 committed by Linus Torvalds
parent d60d2d8a42
commit 8db51668f5
2 changed files with 7 additions and 0 deletions
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1
drivers/video/Kconfig
View file

@ -1194,6 +1194,7 @@ config FB_S3
select FB_TILEBLITTING
select FB_SVGALIB
select VGASTATE
select FONT_8x16 if FRAMEBUFFER_CONSOLE
---help---
Driver for graphics boards with S3 Trio / S3 Virge chip.

6
drivers/video/s3fb.c
View file

@ -449,6 +449,9 @@ static int s3fb_set_par(struct fb_info *info)
info->flags &= ~FBINFO_MISC_TILEBLITTING;
info->tileops = NULL;
/* supports blit rectangles of any dimension */
info->pixmap.blit_x = ~(u32)0;
info->pixmap.blit_y = ~(u32)0;
offset_value = (info->var.xres_virtual * bpp) / 64;
screen_size = info->var.yres_virtual * info->fix.line_length;
} else {
@ -457,6 +460,9 @@ static int s3fb_set_par(struct fb_info *info)
info->flags |= FBINFO_MISC_TILEBLITTING;
info->tileops = fasttext ? &s3fb_fast_tile_ops : &s3fb_tile_ops;
/* supports 8x16 tiles only */
info->pixmap.blit_x = 1 << (8 - 1);
info->pixmap.blit_y = 1 << (16 - 1);
offset_value = info->var.xres_virtual / 16;
screen_size = (info->var.xres_virtual * info->var.yres_virtual) / 64;