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wdenk059ae172003-04-20 16:52:09 +00001/*
2 * (C) Copyright 2002
wdenkb37c7e52003-06-30 16:24:52 +00003 * Detlev Zundel, DENX Software Engineering, dzu@denx.de.
wdenk059ae172003-04-20 16:52:09 +00004 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
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.
12 *
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.
17 *
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,
21 * MA 02111-1307 USA
22 */
23
24/*
25 * BMP handling routines
26 */
27
28#include <common.h>
29#include <bmp_layout.h>
30#include <command.h>
wdenk8655b6f2004-10-09 23:25:58 +000031#include <asm/byteorder.h>
Stefan Roesec29ab9d2005-10-08 10:19:07 +020032#include <malloc.h>
wdenk059ae172003-04-20 16:52:09 +000033
wdenk059ae172003-04-20 16:52:09 +000034static int bmp_info (ulong addr);
wdenk4b248f32004-03-14 16:51:43 +000035static int bmp_display (ulong addr, int x, int y);
wdenk059ae172003-04-20 16:52:09 +000036
Stefan Roesec29ab9d2005-10-08 10:19:07 +020037int gunzip(void *, int, unsigned char *, unsigned long *);
38
wdenk059ae172003-04-20 16:52:09 +000039/*
Hans-Christian Egtvedt43ef1c32007-11-30 17:29:59 +010040 * Allocate and decompress a BMP image using gunzip().
41 *
42 * Returns a pointer to the decompressed image data. Must be freed by
43 * the caller after use.
44 *
45 * Returns NULL if decompression failed, or if the decompressed data
46 * didn't contain a valid BMP signature.
47 */
48#ifdef CONFIG_VIDEO_BMP_GZIP
49static bmp_image_t *gunzip_bmp(unsigned long addr, unsigned long *lenp)
50{
51 void *dst;
52 unsigned long len;
53 bmp_image_t *bmp;
54
55 /*
56 * Decompress bmp image
57 */
58 len = CFG_VIDEO_LOGO_MAX_SIZE;
59 dst = malloc(CFG_VIDEO_LOGO_MAX_SIZE);
60 if (dst == NULL) {
61 puts("Error: malloc in gunzip failed!\n");
62 return NULL;
63 }
64 if (gunzip(dst, CFG_VIDEO_LOGO_MAX_SIZE, (uchar *)addr, &len) != 0) {
65 free(dst);
66 return NULL;
67 }
68 if (len == CFG_VIDEO_LOGO_MAX_SIZE)
69 puts("Image could be truncated"
70 " (increase CFG_VIDEO_LOGO_MAX_SIZE)!\n");
71
72 bmp = dst;
73
74 /*
75 * Check for bmp mark 'BM'
76 */
77 if (!((bmp->header.signature[0] == 'B') &&
78 (bmp->header.signature[1] == 'M'))) {
79 free(dst);
80 return NULL;
81 }
82
83 puts("Gzipped BMP image detected!\n");
84
85 return bmp;
86}
87#else
88static bmp_image_t *gunzip_bmp(unsigned long addr)
89{
90 return NULL;
91}
92#endif
93
94
95/*
wdenk059ae172003-04-20 16:52:09 +000096 * Subroutine: do_bmp
97 *
98 * Description: Handler for 'bmp' command..
99 *
100 * Inputs: argv[1] contains the subcommand
101 *
102 * Return: None
103 *
104 */
105int do_bmp(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
106{
107 ulong addr;
wdenk4b248f32004-03-14 16:51:43 +0000108 int x = 0, y = 0;
wdenk059ae172003-04-20 16:52:09 +0000109
110 switch (argc) {
111 case 2: /* use load_addr as default address */
112 addr = load_addr;
113 break;
114 case 3: /* use argument */
115 addr = simple_strtoul(argv[2], NULL, 16);
116 break;
wdenk4b248f32004-03-14 16:51:43 +0000117 case 5:
118 addr = simple_strtoul(argv[2], NULL, 16);
119 x = simple_strtoul(argv[3], NULL, 10);
120 y = simple_strtoul(argv[4], NULL, 10);
121 break;
wdenk059ae172003-04-20 16:52:09 +0000122 default:
123 printf ("Usage:\n%s\n", cmdtp->usage);
124 return 1;
125 }
126
127 /* Allow for short names
128 * Adjust length if more sub-commands get added
129 */
130 if (strncmp(argv[1],"info",1) == 0) {
131 return (bmp_info(addr));
132 } else if (strncmp(argv[1],"display",1) == 0) {
wdenk4b248f32004-03-14 16:51:43 +0000133 return (bmp_display(addr, x, y));
wdenk059ae172003-04-20 16:52:09 +0000134 } else {
135 printf ("Usage:\n%s\n", cmdtp->usage);
136 return 1;
137 }
138}
139
wdenk0d498392003-07-01 21:06:45 +0000140U_BOOT_CMD(
wdenk4b248f32004-03-14 16:51:43 +0000141 bmp, 5, 1, do_bmp,
wdenkb0fce992003-06-29 21:03:46 +0000142 "bmp - manipulate BMP image data\n",
wdenk4b248f32004-03-14 16:51:43 +0000143 "info <imageAddr> - display image info\n"
144 "bmp display <imageAddr> [x y] - display image at x,y\n"
wdenkb0fce992003-06-29 21:03:46 +0000145);
146
wdenk059ae172003-04-20 16:52:09 +0000147/*
148 * Subroutine: bmp_info
149 *
150 * Description: Show information about bmp file in memory
151 *
152 * Inputs: addr address of the bmp file
153 *
154 * Return: None
155 *
156 */
157static int bmp_info(ulong addr)
158{
159 bmp_image_t *bmp=(bmp_image_t *)addr;
Hans-Christian Egtvedt43ef1c32007-11-30 17:29:59 +0100160 unsigned long len;
Stefan Roesec29ab9d2005-10-08 10:19:07 +0200161
wdenk059ae172003-04-20 16:52:09 +0000162 if (!((bmp->header.signature[0]=='B') &&
Hans-Christian Egtvedt43ef1c32007-11-30 17:29:59 +0100163 (bmp->header.signature[1]=='M')))
164 bmp = gunzip_bmp(addr, &len);
Stefan Roesec29ab9d2005-10-08 10:19:07 +0200165
Hans-Christian Egtvedt43ef1c32007-11-30 17:29:59 +0100166 if (bmp == NULL) {
wdenk059ae172003-04-20 16:52:09 +0000167 printf("There is no valid bmp file at the given address\n");
Hans-Christian Egtvedt43ef1c32007-11-30 17:29:59 +0100168 return 1;
wdenk059ae172003-04-20 16:52:09 +0000169 }
Hans-Christian Egtvedt43ef1c32007-11-30 17:29:59 +0100170
wdenk059ae172003-04-20 16:52:09 +0000171 printf("Image size : %d x %d\n", le32_to_cpu(bmp->header.width),
172 le32_to_cpu(bmp->header.height));
173 printf("Bits per pixel: %d\n", le16_to_cpu(bmp->header.bit_count));
174 printf("Compression : %d\n", le32_to_cpu(bmp->header.compression));
Stefan Roesec29ab9d2005-10-08 10:19:07 +0200175
Hans-Christian Egtvedt43ef1c32007-11-30 17:29:59 +0100176 if ((unsigned long)bmp != addr)
177 free(bmp);
Stefan Roesec29ab9d2005-10-08 10:19:07 +0200178
wdenk059ae172003-04-20 16:52:09 +0000179 return(0);
180}
181
182/*
183 * Subroutine: bmp_display
184 *
185 * Description: Display bmp file located in memory
186 *
187 * Inputs: addr address of the bmp file
188 *
189 * Return: None
190 *
191 */
wdenk4b248f32004-03-14 16:51:43 +0000192static int bmp_display(ulong addr, int x, int y)
wdenk059ae172003-04-20 16:52:09 +0000193{
Hans-Christian Egtvedt43ef1c32007-11-30 17:29:59 +0100194 int ret;
195 bmp_image_t *bmp = (bmp_image_t *)addr;
196 unsigned long len;
197
198 if (!((bmp->header.signature[0]=='B') &&
199 (bmp->header.signature[1]=='M')))
200 bmp = gunzip_bmp(addr, &len);
201
202 if (!bmp) {
203 printf("There is no valid bmp file at the given address\n");
204 return 1;
205 }
206
wdenk281e00a2004-08-01 22:48:16 +0000207#if defined(CONFIG_LCD)
208 extern int lcd_display_bitmap (ulong, int, int);
wdenk059ae172003-04-20 16:52:09 +0000209
Hans-Christian Egtvedt43ef1c32007-11-30 17:29:59 +0100210 ret = lcd_display_bitmap ((unsigned long)bmp, x, y);
wdenk281e00a2004-08-01 22:48:16 +0000211#elif defined(CONFIG_VIDEO)
wdenk4b248f32004-03-14 16:51:43 +0000212 extern int video_display_bitmap (ulong, int, int);
Hans-Christian Egtvedt43ef1c32007-11-30 17:29:59 +0100213
214 ret = video_display_bitmap ((unsigned long)bmp, x, y);
wdenk281e00a2004-08-01 22:48:16 +0000215#else
216# error bmp_display() requires CONFIG_LCD or CONFIG_VIDEO
wdenk4b248f32004-03-14 16:51:43 +0000217#endif
Hans-Christian Egtvedt43ef1c32007-11-30 17:29:59 +0100218
219 if ((unsigned long)bmp != addr)
220 free(bmp);
221
222 return ret;
wdenk059ae172003-04-20 16:52:09 +0000223}