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体验新版 GitCode,发现更多精彩内容 >>
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059ae173
编写于
4月 20, 2003
作者:
W
wdenk
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差异文件
Add files needed for bitmap load support
上级
824a1ebf
变更
3
隐藏空白更改
内联
并排
Showing
3 changed file
with
239 addition
and
0 deletion
+239
-0
common/cmd_bmp.c
common/cmd_bmp.c
+118
-0
include/bmp_layout.h
include/bmp_layout.h
+77
-0
include/cmd_bmp.h
include/cmd_bmp.h
+44
-0
未找到文件。
common/cmd_bmp.c
0 → 100644
浏览文件 @
059ae173
/*
* (C) Copyright 2002
* Dtlev Zundel, DENX Software Engineering, dzu@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* BMP handling routines
*/
#include <common.h>
#include <bmp_layout.h>
#include <command.h>
#if (CONFIG_COMMANDS & CFG_CMD_BMP)
static
int
bmp_info
(
ulong
addr
);
static
int
bmp_display
(
ulong
addr
);
/*
* Subroutine: do_bmp
*
* Description: Handler for 'bmp' command..
*
* Inputs: argv[1] contains the subcommand
*
* Return: None
*
*/
int
do_bmp
(
cmd_tbl_t
*
cmdtp
,
int
flag
,
int
argc
,
char
*
argv
[])
{
ulong
addr
;
switch
(
argc
)
{
case
2
:
/* use load_addr as default address */
addr
=
load_addr
;
break
;
case
3
:
/* use argument */
addr
=
simple_strtoul
(
argv
[
2
],
NULL
,
16
);
break
;
default:
printf
(
"Usage:
\n
%s
\n
"
,
cmdtp
->
usage
);
return
1
;
}
/* Allow for short names
* Adjust length if more sub-commands get added
*/
if
(
strncmp
(
argv
[
1
],
"info"
,
1
)
==
0
)
{
return
(
bmp_info
(
addr
));
}
else
if
(
strncmp
(
argv
[
1
],
"display"
,
1
)
==
0
)
{
return
(
bmp_display
(
addr
));
}
else
{
printf
(
"Usage:
\n
%s
\n
"
,
cmdtp
->
usage
);
return
1
;
}
}
/*
* Subroutine: bmp_info
*
* Description: Show information about bmp file in memory
*
* Inputs: addr address of the bmp file
*
* Return: None
*
*/
static
int
bmp_info
(
ulong
addr
)
{
bmp_image_t
*
bmp
=
(
bmp_image_t
*
)
addr
;
if
(
!
((
bmp
->
header
.
signature
[
0
]
==
'B'
)
&&
(
bmp
->
header
.
signature
[
1
]
==
'M'
)))
{
printf
(
"There is no valid bmp file at the given address
\n
"
);
return
(
1
);
}
printf
(
"Image size : %d x %d
\n
"
,
le32_to_cpu
(
bmp
->
header
.
width
),
le32_to_cpu
(
bmp
->
header
.
height
));
printf
(
"Bits per pixel: %d
\n
"
,
le16_to_cpu
(
bmp
->
header
.
bit_count
));
printf
(
"Compression : %d
\n
"
,
le32_to_cpu
(
bmp
->
header
.
compression
));
return
(
0
);
}
/*
* Subroutine: bmp_display
*
* Description: Display bmp file located in memory
*
* Inputs: addr address of the bmp file
*
* Return: None
*
*/
static
int
bmp_display
(
ulong
addr
)
{
extern
int
lcd_display_bitmap
(
ulong
);
return
(
lcd_display_bitmap
(
addr
));
}
#endif
/* (CONFIG_COMMANDS & CFG_CMD_BMP) */
include/bmp_layout.h
0 → 100644
浏览文件 @
059ae173
/* (C) Copyright 2002
* Detlev Zundel, DENX Software Engineering, dzu@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/************************************************************************/
/* ** Layout of a bmp file */
/************************************************************************/
#ifndef _BMP_H_
#define _BMP_H_
typedef
struct
bmp_color_table_entry
{
__u8
blue
;
__u8
green
;
__u8
red
;
__u8
reserved
;
}
__attribute__
((
packed
))
bmp_color_table_entry_t
;
/* When accessing these fields, remember that they are stored in little
endian format, so use linux macros, e.g. le32_to_cpu(width) */
typedef
struct
bmp_header
{
/* Header */
char
signature
[
2
];
__u32
file_size
;
__u32
reserved
;
__u32
data_offset
;
/* InfoHeader */
__u32
size
;
__u32
width
;
__u32
height
;
__u16
planes
;
__u16
bit_count
;
__u32
compression
;
__u32
image_size
;
__u32
x_pixels_per_m
;
__u32
y_pixels_per_m
;
__u32
colors_used
;
__u32
colors_important
;
/* ColorTable */
}
__attribute__
((
packed
))
bmp_header_t
;
typedef
struct
bmp_image
{
bmp_header_t
header
;
/* We use a zero sized array just as a placeholder for variable
sized array */
bmp_color_table_entry_t
color_table
[
0
];
}
bmp_image_t
;
/* Data in the bmp_image is aligned to this length */
#define BMP_DATA_ALIGN 4
/* Constants for the compression field */
#define BMP_BI_RGB 0
#define BMP_BI_RLE8 1
#define BMP_BI_RLE4 2
#endif
/* _BMP_H_ */
include/cmd_bmp.h
0 → 100644
浏览文件 @
059ae173
/* (C) Copyright 2002
* Detlev Zundel, DENX Software Engineering, dzu@denx.de.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* Bitmap display support
*/
#ifndef _CMD_BMP_H
#define _CMD_BMP_H
#include <common.h>
#include <command.h>
#if (CONFIG_COMMANDS & CFG_CMD_BMP)
#define CMD_TBL_BMP MK_CMD_TBL_ENTRY( \
"bmp", 3, 3, 1, do_bmp, \
"bmp - manipulate BMP image data\n", \
"\nbmp info <imageAddr> - display image info\n" \
"bmp display <imageAddr> - display image\n" \
),
int
do_bmp
(
cmd_tbl_t
*
cmdtp
,
int
flag
,
int
argc
,
char
*
argv
[]);
#else
#define CMD_TBL_BMP
#endif
#endif
/* _CMD_BMP_H */
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