3 * Detlev Zundel, DENX Software Engineering, dzu@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 * BMP handling routines
30 #include <bmp_layout.h>
32 #include <asm/byteorder.h>
36 static int bmp_info (ulong addr
);
39 * Allocate and decompress a BMP image using gunzip().
41 * Returns a pointer to the decompressed image data. Must be freed by
42 * the caller after use.
44 * Returns NULL if decompression failed, or if the decompressed data
45 * didn't contain a valid BMP signature.
47 #ifdef CONFIG_VIDEO_BMP_GZIP
48 bmp_image_t
*gunzip_bmp(unsigned long addr
, unsigned long *lenp
)
55 * Decompress bmp image
57 len
= CONFIG_SYS_VIDEO_LOGO_MAX_SIZE
;
58 dst
= malloc(CONFIG_SYS_VIDEO_LOGO_MAX_SIZE
);
60 puts("Error: malloc in gunzip failed!\n");
63 if (gunzip(dst
, CONFIG_SYS_VIDEO_LOGO_MAX_SIZE
, (uchar
*)addr
, &len
) != 0) {
67 if (len
== CONFIG_SYS_VIDEO_LOGO_MAX_SIZE
)
68 puts("Image could be truncated"
69 " (increase CONFIG_SYS_VIDEO_LOGO_MAX_SIZE)!\n");
74 * Check for bmp mark 'BM'
76 if (!((bmp
->header
.signature
[0] == 'B') &&
77 (bmp
->header
.signature
[1] == 'M'))) {
82 debug("Gzipped BMP image detected!\n");
87 bmp_image_t
*gunzip_bmp(unsigned long addr
, unsigned long *lenp
)
93 static int do_bmp_info(cmd_tbl_t
* cmdtp
, int flag
, int argc
, char * const argv
[])
98 case 1: /* use load_addr as default address */
101 case 2: /* use argument */
102 addr
= simple_strtoul(argv
[1], NULL
, 16);
105 return CMD_RET_USAGE
;
108 return (bmp_info(addr
));
111 static int do_bmp_display(cmd_tbl_t
* cmdtp
, int flag
, int argc
, char * const argv
[])
117 case 1: /* use load_addr as default address */
120 case 2: /* use argument */
121 addr
= simple_strtoul(argv
[1], NULL
, 16);
124 addr
= simple_strtoul(argv
[1], NULL
, 16);
125 x
= simple_strtoul(argv
[2], NULL
, 10);
126 y
= simple_strtoul(argv
[3], NULL
, 10);
129 return CMD_RET_USAGE
;
132 return (bmp_display(addr
, x
, y
));
135 static cmd_tbl_t cmd_bmp_sub
[] = {
136 U_BOOT_CMD_MKENT(info
, 3, 0, do_bmp_info
, "", ""),
137 U_BOOT_CMD_MKENT(display
, 5, 0, do_bmp_display
, "", ""),
140 #ifdef CONFIG_NEEDS_MANUAL_RELOC
141 void bmp_reloc(void) {
142 fixup_cmdtable(cmd_bmp_sub
, ARRAY_SIZE(cmd_bmp_sub
));
149 * Description: Handler for 'bmp' command..
151 * Inputs: argv[1] contains the subcommand
156 static int do_bmp(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
160 /* Strip off leading 'bmp' command argument */
164 c
= find_cmd_tbl(argv
[0], &cmd_bmp_sub
[0], ARRAY_SIZE(cmd_bmp_sub
));
167 return c
->cmd(cmdtp
, flag
, argc
, argv
);
169 return CMD_RET_USAGE
;
174 "manipulate BMP image data",
175 "info <imageAddr> - display image info\n"
176 "bmp display <imageAddr> [x y] - display image at x,y"
180 * Subroutine: bmp_info
182 * Description: Show information about bmp file in memory
184 * Inputs: addr address of the bmp file
189 static int bmp_info(ulong addr
)
191 bmp_image_t
*bmp
=(bmp_image_t
*)addr
;
194 if (!((bmp
->header
.signature
[0]=='B') &&
195 (bmp
->header
.signature
[1]=='M')))
196 bmp
= gunzip_bmp(addr
, &len
);
199 printf("There is no valid bmp file at the given address\n");
203 printf("Image size : %d x %d\n", le32_to_cpu(bmp
->header
.width
),
204 le32_to_cpu(bmp
->header
.height
));
205 printf("Bits per pixel: %d\n", le16_to_cpu(bmp
->header
.bit_count
));
206 printf("Compression : %d\n", le32_to_cpu(bmp
->header
.compression
));
208 if ((unsigned long)bmp
!= addr
)
215 * Subroutine: bmp_display
217 * Description: Display bmp file located in memory
219 * Inputs: addr address of the bmp file
224 int bmp_display(ulong addr
, int x
, int y
)
227 bmp_image_t
*bmp
= (bmp_image_t
*)addr
;
230 if (!((bmp
->header
.signature
[0]=='B') &&
231 (bmp
->header
.signature
[1]=='M')))
232 bmp
= gunzip_bmp(addr
, &len
);
235 printf("There is no valid bmp file at the given address\n");
239 #if defined(CONFIG_LCD)
240 ret
= lcd_display_bitmap((ulong
)bmp
, x
, y
);
241 #elif defined(CONFIG_VIDEO)
242 ret
= video_display_bitmap((unsigned long)bmp
, x
, y
);
244 # error bmp_display() requires CONFIG_LCD or CONFIG_VIDEO
247 if ((unsigned long)bmp
!= addr
)