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fbdev: consolidate common drawing functions into a header file

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Consolidate common drawing functions into a single header file.

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 00:39:08 -07:00
committed by Linus Torvalds
parent 52102c07a6
commit dc0e6e0544
5 changed files with 76 additions and 158 deletions
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68
drivers/video/sysfillrect.c
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@ -15,73 +15,7 @@
#include <linux/string.h>
#include <linux/fb.h>
#include <asm/types.h>
/*
* Compose two values, using a bitmask as decision value
* This is equivalent to (a & mask) | (b & ~mask)
*/
static inline unsigned long
comp(unsigned long a, unsigned long b, unsigned long mask)
{
return ((a ^ b) & mask) ^ b;
}
/*
* Create a pattern with the given pixel's color
*/
#if BITS_PER_LONG == 64
static inline unsigned long
pixel_to_pat( u32 bpp, u32 pixel)
{
switch (bpp) {
case 1:
return 0xfffffffffffffffful*pixel;
case 2:
return 0x5555555555555555ul*pixel;
case 4:
return 0x1111111111111111ul*pixel;
case 8:
return 0x0101010101010101ul*pixel;
case 12:
return 0x0001001001001001ul*pixel;
case 16:
return 0x0001000100010001ul*pixel;
case 24:
return 0x0000000001000001ul*pixel;
case 32:
return 0x0000000100000001ul*pixel;
default:
panic("pixel_to_pat(): unsupported pixelformat\n");
}
}
#else
static inline unsigned long
pixel_to_pat( u32 bpp, u32 pixel)
{
switch (bpp) {
case 1:
return 0xfffffffful*pixel;
case 2:
return 0x55555555ul*pixel;
case 4:
return 0x11111111ul*pixel;
case 8:
return 0x01010101ul*pixel;
case 12:
return 0x00001001ul*pixel;
case 16:
return 0x00010001ul*pixel;
case 24:
return 0x00000001ul*pixel;
case 32:
return 0x00000001ul*pixel;
default:
panic("pixel_to_pat(): unsupported pixelformat\n");
}
}
#endif
#include "fb_draw.h"
/*
* Aligned pattern fill using 32/64-bit memory accesses