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
29 #include <bmp_layout.h>
31 #include <asm/byteorder.h>
33 #if (CONFIG_COMMANDS & CFG_CMD_BMP)
35 static int bmp_info (ulong addr);
36 static int bmp_display (ulong addr, int x, int y);
41 * Description: Handler for 'bmp' command..
43 * Inputs: argv[1] contains the subcommand
48 int do_bmp(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
54 case 2: /* use load_addr as default address */
57 case 3: /* use argument */
58 addr = simple_strtoul(argv[2], NULL, 16);
61 addr = simple_strtoul(argv[2], NULL, 16);
62 x = simple_strtoul(argv[3], NULL, 10);
63 y = simple_strtoul(argv[4], NULL, 10);
66 printf ("Usage:\n%s\n", cmdtp->usage);
70 /* Allow for short names
71 * Adjust length if more sub-commands get added
73 if (strncmp(argv[1],"info",1) == 0) {
74 return (bmp_info(addr));
75 } else if (strncmp(argv[1],"display",1) == 0) {
76 return (bmp_display(addr, x, y));
78 printf ("Usage:\n%s\n", cmdtp->usage);
85 "bmp - manipulate BMP image data\n",
86 "info <imageAddr> - display image info\n"
87 "bmp display <imageAddr> [x y] - display image at x,y\n"
91 * Subroutine: bmp_info
93 * Description: Show information about bmp file in memory
95 * Inputs: addr address of the bmp file
100 static int bmp_info(ulong addr)
102 bmp_image_t *bmp=(bmp_image_t *)addr;
103 if (!((bmp->header.signature[0]=='B') &&
104 (bmp->header.signature[1]=='M'))) {
105 printf("There is no valid bmp file at the given address\n");
108 printf("Image size : %d x %d\n", le32_to_cpu(bmp->header.width),
109 le32_to_cpu(bmp->header.height));
110 printf("Bits per pixel: %d\n", le16_to_cpu(bmp->header.bit_count));
111 printf("Compression : %d\n", le32_to_cpu(bmp->header.compression));
116 * Subroutine: bmp_display
118 * Description: Display bmp file located in memory
120 * Inputs: addr address of the bmp file
125 static int bmp_display(ulong addr, int x, int y)
127 #if defined(CONFIG_LCD)
128 extern int lcd_display_bitmap (ulong, int, int);
130 return (lcd_display_bitmap (addr, x, y));
131 #elif defined(CONFIG_VIDEO)
132 extern int video_display_bitmap (ulong, int, int);
133 return (video_display_bitmap (addr, x, y));
135 # error bmp_display() requires CONFIG_LCD or CONFIG_VIDEO
139 #endif /* (CONFIG_COMMANDS & CFG_CMD_BMP) */