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Kirill Smelkov
linux
Commits
2a66d9e5
Commit
2a66d9e5
authored
Mar 09, 2003
by
James Simmons
Browse files
Options
Browse Files
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Email Patches
Plain Diff
[FBDEV] Enhanced data buffer management for drawing very large images.
parent
f6f9b577
Changes
4
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Inline
Side-by-side
Showing
4 changed files
with
92 additions
and
161 deletions
+92
-161
drivers/video/console/fbcon.c
drivers/video/console/fbcon.c
+5
-121
drivers/video/fbmem.c
drivers/video/fbmem.c
+76
-1
drivers/video/softcursor.c
drivers/video/softcursor.c
+6
-39
include/linux/fb.h
include/linux/fb.h
+5
-0
No files found.
drivers/video/console/fbcon.c
View file @
2a66d9e5
...
...
@@ -134,8 +134,6 @@ static void fbcon_free_font(struct display *);
static
int
fbcon_set_origin
(
struct
vc_data
*
);
static
int
cursor_drawn
;
#define FBCON_PIXMAPSIZE 8192
#define CURSOR_DRAW_DELAY (1)
/* # VBL ints between cursor state changes */
...
...
@@ -300,83 +298,6 @@ void set_con2fb_map(int unit, int newidx)
/*
* drawing helpers
*/
static
inline
void
sysmove_buf_aligned
(
u8
*
dst
,
u8
*
src
,
u32
d_pitch
,
u32
s_pitch
,
u32
height
,
struct
fb_info
*
info
)
{
int
i
,
j
;
for
(
i
=
height
;
i
--
;
)
{
for
(
j
=
0
;
j
<
s_pitch
;
j
++
)
dst
[
j
]
=
*
src
++
;
dst
+=
d_pitch
;
}
}
static
inline
void
iomove_buf_aligned
(
u8
*
dst
,
u8
*
src
,
u32
d_pitch
,
u32
s_pitch
,
u32
height
,
struct
fb_info
*
info
)
{
int
i
,
j
;
for
(
i
=
height
;
i
--
;
)
{
for
(
j
=
0
;
j
<
s_pitch
;
j
++
)
info
->
pixmap
.
outbuf
(
*
src
++
,
dst
+
j
);
dst
+=
d_pitch
;
}
}
static
inline
void
sysmove_buf_unaligned
(
u8
*
dst
,
u8
*
src
,
u32
d_pitch
,
u32
height
,
u32
mask
,
u32
shift_high
,
u32
shift_low
,
u32
mod
,
u32
idx
,
struct
fb_info
*
info
)
{
int
i
,
j
;
for
(
i
=
height
;
i
--
;
)
{
for
(
j
=
0
;
j
<
idx
;
j
++
)
{
dst
[
j
]
&=
mask
;
dst
[
j
]
|=
*
src
>>
shift_low
;
dst
[
j
+
1
]
=
*
src
<<
shift_high
;
src
++
;
}
dst
[
idx
]
&=
mask
;
dst
[
idx
]
|=
*
src
>>
shift_low
;
if
(
shift_high
<
mod
)
dst
[
idx
+
1
]
=
*
src
<<
shift_high
;
src
++
;
dst
+=
d_pitch
;
}
}
static
inline
void
iomove_buf_unaligned
(
u8
*
dst
,
u8
*
src
,
u32
d_pitch
,
u32
height
,
u32
mask
,
u32
shift_high
,
u32
shift_low
,
u32
mod
,
u32
idx
,
struct
fb_info
*
info
)
{
int
i
,
j
;
u8
tmp
;
for
(
i
=
height
;
i
--
;
)
{
for
(
j
=
0
;
j
<
idx
;
j
++
)
{
tmp
=
info
->
pixmap
.
inbuf
(
dst
+
j
);
tmp
&=
mask
;
tmp
|=
*
src
>>
shift_low
;
info
->
pixmap
.
outbuf
(
tmp
,
dst
+
j
);
info
->
pixmap
.
outbuf
(
*
src
<<
shift_high
,
dst
+
j
+
1
);
src
++
;
}
tmp
=
info
->
pixmap
.
inbuf
(
dst
+
idx
);
tmp
&=
mask
;
tmp
|=
*
src
>>
shift_low
;
info
->
pixmap
.
outbuf
(
tmp
,
dst
+
idx
);
if
(
shift_high
<
mod
)
info
->
pixmap
.
outbuf
(
*
src
<<
shift_high
,
dst
+
idx
+
1
);
src
++
;
dst
+=
d_pitch
;
}
}
static
void
putcs_unaligned
(
struct
vc_data
*
vc
,
struct
display
*
p
,
struct
fb_info
*
info
,
struct
fb_image
*
image
,
int
count
,
const
unsigned
short
*
s
)
...
...
@@ -392,14 +313,6 @@ static void putcs_unaligned(struct vc_data *vc, struct display *p,
unsigned
int
idx
=
vc
->
vc_font
.
width
/
8
;
unsigned
short
charmask
=
p
->
charmask
;
u8
mask
,
*
src
,
*
dst
,
*
dst0
;
void
(
*
move_data
)(
u8
*
dst
,
u8
*
src
,
u32
d_pitch
,
u32
height
,
u32
mask
,
u32
shift_high
,
u32
shift_low
,
u32
mod
,
u32
idx
,
struct
fb_info
*
info
);
if
(
info
->
pixmap
.
outbuf
!=
NULL
)
move_data
=
iomove_buf_unaligned
;
else
move_data
=
sysmove_buf_unaligned
;
while
(
count
)
{
if
(
count
>
maxcnt
)
...
...
@@ -419,14 +332,13 @@ static void putcs_unaligned(struct vc_data *vc, struct display *p,
cellsize
;
dst
=
dst0
;
mask
=
(
u8
)
(
0xfff
<<
shift_high
);
move_
data
(
dst
,
src
,
pitch
,
image
->
height
,
mask
,
shift_high
,
shift_low
,
mod
,
idx
,
info
);
move_
buf_unaligned
(
info
,
dst
,
src
,
pitch
,
image
->
height
,
mask
,
shift_high
,
shift_low
,
mod
,
idx
);
shift_low
+=
mod
;
dst0
+=
(
shift_low
>=
8
)
?
width
:
width
-
1
;
shift_low
&=
7
;
shift_high
=
8
-
shift_low
;
}
info
->
fbops
->
fb_imageblit
(
info
,
image
);
image
->
dx
+=
cnt
*
vc
->
vc_font
.
width
;
count
-=
cnt
;
...
...
@@ -444,15 +356,8 @@ static void putcs_aligned(struct vc_data *vc, struct display *p,
unsigned
int
buf_align
=
info
->
pixmap
.
buf_align
-
1
;
unsigned
int
pitch
,
cnt
,
size
,
k
;
unsigned
short
charmask
=
p
->
charmask
;
void
(
*
move_data
)(
u8
*
dst
,
u8
*
src
,
u32
s_pitch
,
u32
d_pitch
,
u32
height
,
struct
fb_info
*
info
);
u8
*
src
,
*
dst
,
*
dst0
;
if
(
info
->
pixmap
.
outbuf
!=
NULL
)
move_data
=
iomove_buf_aligned
;
else
move_data
=
sysmove_buf_aligned
;
while
(
count
)
{
if
(
count
>
maxcnt
)
cnt
=
k
=
maxcnt
;
...
...
@@ -466,13 +371,11 @@ static void putcs_aligned(struct vc_data *vc, struct display *p,
dst0
=
info
->
pixmap
.
addr
+
fb_get_buffer_offset
(
info
,
size
);
image
->
data
=
dst0
;
while
(
k
--
)
{
src
=
p
->
fontdata
+
(
scr_readw
(
s
++
)
&
charmask
)
*
cellsize
;
src
=
p
->
fontdata
+
(
scr_readw
(
s
++
)
&
charmask
)
*
cellsize
;
dst
=
dst0
;
move_
data
(
dst
,
src
,
pitch
,
width
,
image
->
height
,
info
);
move_
buf_aligned
(
info
,
dst
,
src
,
pitch
,
width
,
image
->
height
);
dst0
+=
width
;
}
info
->
fbops
->
fb_imageblit
(
info
,
image
);
image
->
dx
+=
cnt
*
vc
->
vc_font
.
width
;
count
-=
cnt
;
...
...
@@ -523,15 +426,8 @@ static void accel_putc(struct vc_data *vc, struct display *p,
unsigned
int
size
,
pitch
;
unsigned
int
scan_align
=
info
->
pixmap
.
scan_align
-
1
;
unsigned
int
buf_align
=
info
->
pixmap
.
buf_align
-
1
;
void
(
*
move_data
)(
u8
*
dst
,
u8
*
src
,
u32
s_pitch
,
u32
d_pitch
,
u32
height
,
struct
fb_info
*
info
);
u8
*
src
,
*
dst
;
if
(
info
->
pixmap
.
outbuf
!=
NULL
)
move_data
=
iomove_buf_aligned
;
else
move_data
=
sysmove_buf_aligned
;
image
.
dx
=
xpos
*
vc
->
vc_font
.
width
;
image
.
dy
=
ypos
*
vc
->
vc_font
.
height
;
image
.
width
=
vc
->
vc_font
.
width
;
...
...
@@ -549,7 +445,7 @@ static void accel_putc(struct vc_data *vc, struct display *p,
image
.
data
=
dst
;
src
=
p
->
fontdata
+
(
c
&
charmask
)
*
vc
->
vc_font
.
height
*
width
;
move_
data
(
dst
,
src
,
pitch
,
width
,
image
.
height
,
info
);
move_
buf_aligned
(
info
,
dst
,
src
,
pitch
,
width
,
image
.
height
);
info
->
fbops
->
fb_imageblit
(
info
,
&
image
);
}
...
...
@@ -775,18 +671,6 @@ static const char *fbcon_startup(void)
vc
->
vc_cols
=
info
->
var
.
xres
/
vc
->
vc_font
.
width
;
vc
->
vc_rows
=
info
->
var
.
yres
/
vc
->
vc_font
.
height
;
if
(
info
->
pixmap
.
addr
==
NULL
)
{
info
->
pixmap
.
addr
=
kmalloc
(
FBCON_PIXMAPSIZE
,
GFP_KERNEL
);
if
(
!
info
->
pixmap
.
addr
)
return
NULL
;
info
->
pixmap
.
size
=
FBCON_PIXMAPSIZE
;
info
->
pixmap
.
buf_align
=
1
;
info
->
pixmap
.
scan_align
=
1
;
info
->
pixmap
.
flags
=
FB_PIXMAP_DEFAULT
;
}
info
->
pixmap
.
offset
=
0
;
spin_lock_init
(
&
info
->
pixmap
.
lock
);
/* We trust the mode the driver supplies. */
if
(
info
->
fbops
->
fb_set_par
)
info
->
fbops
->
fb_set_par
(
info
);
...
...
drivers/video/fbmem.c
View file @
2a66d9e5
...
...
@@ -382,6 +382,7 @@ static struct {
};
#define NUM_FB_DRIVERS (sizeof(fb_drivers)/sizeof(*fb_drivers))
#define FBPIXMAPSIZE 8192
extern
const
char
*
global_mode_option
;
...
...
@@ -395,7 +396,59 @@ static int ofonly __initdata = 0;
#endif
/*
* we need to lock this section since fbcon_cursor
* Drawing helpers.
*/
u8
sys_inbuf
(
u8
*
src
)
{
return
*
src
;
}
void
sys_outbuf
(
u8
src
,
u8
*
dst
)
{
*
dst
=
src
;
}
void
move_buf_aligned
(
struct
fb_info
*
info
,
u8
*
dst
,
u8
*
src
,
u32
d_pitch
,
u32
s_pitch
,
u32
height
)
{
int
i
,
j
;
for
(
i
=
height
;
i
--
;
)
{
for
(
j
=
0
;
j
<
s_pitch
;
j
++
)
info
->
pixmap
.
outbuf
(
*
src
++
,
dst
+
j
);
dst
+=
d_pitch
;
}
}
void
move_buf_unaligned
(
struct
fb_info
*
info
,
u8
*
dst
,
u8
*
src
,
u32
d_pitch
,
u32
height
,
u32
mask
,
u32
shift_high
,
u32
shift_low
,
u32
mod
,
u32
idx
)
{
int
i
,
j
;
u8
tmp
;
for
(
i
=
height
;
i
--
;
)
{
for
(
j
=
0
;
j
<
idx
;
j
++
)
{
tmp
=
info
->
pixmap
.
inbuf
(
dst
+
j
);
tmp
&=
mask
;
tmp
|=
*
src
>>
shift_low
;
info
->
pixmap
.
outbuf
(
tmp
,
dst
+
j
);
info
->
pixmap
.
outbuf
(
*
src
<<
shift_high
,
dst
+
j
+
1
);
src
++
;
}
tmp
=
info
->
pixmap
.
inbuf
(
dst
+
idx
);
tmp
&=
mask
;
tmp
|=
*
src
>>
shift_low
;
info
->
pixmap
.
outbuf
(
tmp
,
dst
+
idx
);
if
(
shift_high
<
mod
)
info
->
pixmap
.
outbuf
(
*
src
<<
shift_high
,
dst
+
idx
+
1
);
src
++
;
dst
+=
d_pitch
;
}
}
/*
* we need to lock this section since fb_cursor
* may use fb_imageblit()
*/
u32
fb_get_buffer_offset
(
struct
fb_info
*
info
,
u32
size
)
...
...
@@ -1152,6 +1205,23 @@ register_framebuffer(struct fb_info *fb_info)
if
(
!
registered_fb
[
i
])
break
;
fb_info
->
node
=
mk_kdev
(
FB_MAJOR
,
i
);
if
(
fb_info
->
pixmap
.
addr
==
NULL
)
{
fb_info
->
pixmap
.
addr
=
kmalloc
(
FBPIXMAPSIZE
,
GFP_KERNEL
);
if
(
fb_info
->
pixmap
.
addr
)
{
fb_info
->
pixmap
.
size
=
FBPIXMAPSIZE
;
fb_info
->
pixmap
.
buf_align
=
1
;
fb_info
->
pixmap
.
scan_align
=
1
;
fb_info
->
pixmap
.
flags
=
FB_PIXMAP_DEFAULT
;
}
}
fb_info
->
pixmap
.
offset
=
0
;
if
(
fb_info
->
pixmap
.
outbuf
==
NULL
)
fb_info
->
pixmap
.
outbuf
=
sys_outbuf
;
if
(
fb_info
->
pixmap
.
inbuf
==
NULL
)
fb_info
->
pixmap
.
inbuf
=
sys_inbuf
;
spin_lock_init
(
&
fb_info
->
pixmap
.
lock
);
registered_fb
[
i
]
=
fb_info
;
sprintf
(
name_buf
,
"fb/%d"
,
i
);
devfs_register
(
NULL
,
name_buf
,
DEVFS_FL_DEFAULT
,
...
...
@@ -1180,6 +1250,9 @@ unregister_framebuffer(struct fb_info *fb_info)
if
(
!
registered_fb
[
i
])
return
-
EINVAL
;
devfs_remove
(
"fb/%d"
,
i
);
if
(
fb_info
->
pixmap
.
addr
)
kfree
(
fb_info
->
pixmap
.
addr
);
registered_fb
[
i
]
=
NULL
;
num_registered_fb
--
;
return
0
;
...
...
@@ -1297,5 +1370,7 @@ EXPORT_SYMBOL(fb_set_var);
EXPORT_SYMBOL
(
fb_blank
);
EXPORT_SYMBOL
(
fb_pan_display
);
EXPORT_SYMBOL
(
fb_get_buffer_offset
);
EXPORT_SYMBOL
(
move_buf_unaligned
);
EXPORT_SYMBOL
(
move_buf_aligned
);
MODULE_LICENSE
(
"GPL"
);
drivers/video/softcursor.c
View file @
2a66d9e5
...
...
@@ -17,30 +17,6 @@
#include <asm/uaccess.h>
#include <asm/io.h>
static
inline
void
sysmove_buf
(
u8
*
dst
,
u8
*
src
,
u32
d_pitch
,
u32
s_pitch
,
u32
height
,
struct
fb_info
*
info
)
{
int
i
,
j
;
for
(
i
=
height
;
i
--
;
)
{
for
(
j
=
0
;
j
<
s_pitch
;
j
++
)
dst
[
j
]
=
*
src
++
;
dst
+=
d_pitch
;
}
}
static
inline
void
iomove_buf
(
u8
*
dst
,
u8
*
src
,
u32
d_pitch
,
u32
s_pitch
,
u32
height
,
struct
fb_info
*
info
)
{
int
i
,
j
;
for
(
i
=
height
;
i
--
;
)
{
for
(
j
=
0
;
j
<
s_pitch
;
j
++
)
info
->
pixmap
.
outbuf
(
*
src
++
,
dst
+
j
);
dst
+=
d_pitch
;
}
}
int
soft_cursor
(
struct
fb_info
*
info
,
struct
fb_cursor
*
cursor
)
{
static
u8
src
[
64
];
...
...
@@ -49,16 +25,8 @@ int soft_cursor(struct fb_info *info, struct fb_cursor *cursor)
unsigned
dsize
=
((
cursor
->
image
.
width
+
7
)
/
8
)
*
cursor
->
image
.
height
;
unsigned
int
scan_align
=
info
->
pixmap
.
scan_align
-
1
;
unsigned
int
buf_align
=
info
->
pixmap
.
buf_align
-
1
;
void
(
*
move_data
)(
u8
*
dst
,
u8
*
src
,
u32
s_pitch
,
u32
d_pitch
,
u32
height
,
struct
fb_info
*
info
);
u8
*
dst
;
if
(
info
->
pixmap
.
outbuf
!=
NULL
)
move_data
=
iomove_buf
;
else
move_data
=
sysmove_buf
;
s_pitch
=
(
cursor
->
image
.
width
+
7
)
/
8
;
d_pitch
=
(
s_pitch
+
scan_align
)
&
~
scan_align
;
size
=
d_pitch
*
cursor
->
image
.
height
+
buf_align
;
...
...
@@ -83,11 +51,11 @@ int soft_cursor(struct fb_info *info, struct fb_cursor *cursor)
}
break
;
}
move_
data
(
dst
,
src
,
d_pitch
,
s_pitch
,
cursor
->
image
.
height
,
info
);
move_
buf_aligned
(
info
,
dst
,
src
,
d_pitch
,
s_pitch
,
cursor
->
image
.
height
);
}
else
{
move_
data
(
dst
,
cursor
->
dest
,
s_pitch
,
d_pitch
,
cursor
->
image
.
height
,
info
);
move_
buf_aligned
(
info
,
dst
,
cursor
->
dest
,
s_pitch
,
d_pitch
,
cursor
->
image
.
height
);
}
image
.
bg_color
=
cursor
->
image
.
bg_color
;
...
...
@@ -98,7 +66,6 @@ int soft_cursor(struct fb_info *info, struct fb_cursor *cursor)
image
.
height
=
cursor
->
image
.
height
;
image
.
depth
=
cursor
->
image
.
depth
;
if
(
info
->
fbops
->
fb_imageblit
)
info
->
fbops
->
fb_imageblit
(
info
,
&
image
);
return
0
;
}
...
...
include/linux/fb.h
View file @
2a66d9e5
...
...
@@ -482,6 +482,11 @@ extern int unregister_framebuffer(struct fb_info *fb_info);
extern
int
fb_prepare_logo
(
struct
fb_info
*
fb_info
);
extern
int
fb_show_logo
(
struct
fb_info
*
fb_info
);
extern
u32
fb_get_buffer_offset
(
struct
fb_info
*
info
,
u32
size
);
extern
void
move_buf_unaligned
(
struct
fb_info
*
info
,
u8
*
dst
,
u8
*
src
,
u32
d_pitch
,
u32
height
,
u32
mask
,
u32
shift_high
,
u32
shift_low
,
u32
mod
,
u32
idx
);
extern
void
move_buf_aligned
(
struct
fb_info
*
info
,
u8
*
dst
,
u8
*
src
,
u32
d_pitch
,
u32
s_pitch
,
u32
height
);
extern
struct
fb_info
*
registered_fb
[
FB_MAX
];
extern
int
num_registered_fb
;
...
...
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