Contributors: 8
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Antonino A. Daplas |
538 |
87.20% |
6 |
35.29% |
| Thomas Zimmermann |
39 |
6.32% |
3 |
17.65% |
| Helge Deller |
18 |
2.92% |
2 |
11.76% |
| Benjamin Herrenschmidt |
11 |
1.78% |
1 |
5.88% |
| James Simmons |
6 |
0.97% |
2 |
11.76% |
| Andrew Morton |
2 |
0.32% |
1 |
5.88% |
| Stefani Seibold |
2 |
0.32% |
1 |
5.88% |
| Linus Torvalds |
1 |
0.16% |
1 |
5.88% |
| Total |
617 |
|
17 |
|
/*
* linux/drivers/video/console/fbcon_rotate.h -- Software Display Rotation
*
* Copyright (C) 2005 Antonino Daplas <adaplas@pol.net>
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive
* for more details.
*/
#ifndef _FBCON_ROTATE_H
#define _FBCON_ROTATE_H
#define GETVYRES(s,i) ({ \
(fb_scrollmode(s) == SCROLL_REDRAW || fb_scrollmode(s) == SCROLL_MOVE) ? \
(i)->var.yres : (i)->var.yres_virtual; })
#define GETVXRES(s,i) ({ \
(fb_scrollmode(s) == SCROLL_REDRAW || fb_scrollmode(s) == SCROLL_MOVE || !(i)->fix.xpanstep) ? \
(i)->var.xres : (i)->var.xres_virtual; })
static inline int pattern_test_bit(u32 x, u32 y, u32 pitch, const char *pat)
{
u32 tmp = (y * pitch) + x, index = tmp / 8, bit = tmp % 8;
pat +=index;
return (*pat) & (0x80 >> bit);
}
static inline void pattern_set_bit(u32 x, u32 y, u32 pitch, char *pat)
{
u32 tmp = (y * pitch) + x, index = tmp / 8, bit = tmp % 8;
pat += index;
(*pat) |= 0x80 >> bit;
}
static inline void rotate_ud(const char *in, char *out, u32 width, u32 height)
{
int i, j;
int shift = (8 - (width % 8)) & 7;
width = (width + 7) & ~7;
for (i = 0; i < height; i++) {
for (j = 0; j < width - shift; j++) {
if (pattern_test_bit(j, i, width, in))
pattern_set_bit(width - (1 + j + shift),
height - (1 + i),
width, out);
}
}
}
static inline void rotate_cw(const char *in, char *out, u32 width, u32 height)
{
int i, j, h = height, w = width;
int shift = (8 - (height % 8)) & 7;
width = (width + 7) & ~7;
height = (height + 7) & ~7;
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
if (pattern_test_bit(j, i, width, in))
pattern_set_bit(height - 1 - i - shift, j,
height, out);
}
}
}
static inline void rotate_ccw(const char *in, char *out, u32 width, u32 height)
{
int i, j, h = height, w = width;
int shift = (8 - (width % 8)) & 7;
width = (width + 7) & ~7;
height = (height + 7) & ~7;
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
if (pattern_test_bit(j, i, width, in))
pattern_set_bit(i, width - 1 - j - shift,
height, out);
}
}
}
int fbcon_rotate_font(struct fb_info *info, struct vc_data *vc);
#if defined(CONFIG_FRAMEBUFFER_CONSOLE_ROTATION)
void fbcon_set_bitops_cw(struct fbcon_par *par);
void fbcon_set_bitops_ud(struct fbcon_par *par);
void fbcon_set_bitops_ccw(struct fbcon_par *par);
#else
static inline void fbcon_set_bitops_cw(struct fbcon_par *par)
{ }
static inline void fbcon_set_bitops_ud(struct fbcon_par *par)
{ }
static inline void fbcon_set_bitops_ccw(struct fbcon_par *par)
{ }
#endif
#endif