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059ae173 WD |
1 | /* |
2 | * (C) Copyright 2002 | |
b37c7e5e | 3 | * Detlev Zundel, DENX Software Engineering, dzu@denx.de. |
059ae173 WD |
4 | * |
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> | |
6111722a | 29 | #include <lcd.h> |
059ae173 WD |
30 | #include <bmp_layout.h> |
31 | #include <command.h> | |
8655b6f8 | 32 | #include <asm/byteorder.h> |
c29ab9d7 | 33 | #include <malloc.h> |
059ae173 | 34 | |
059ae173 | 35 | static int bmp_info (ulong addr); |
4b248f3f | 36 | static int bmp_display (ulong addr, int x, int y); |
059ae173 | 37 | |
43ef1c38 HCE |
38 | /* |
39 | * Allocate and decompress a BMP image using gunzip(). | |
40 | * | |
41 | * Returns a pointer to the decompressed image data. Must be freed by | |
42 | * the caller after use. | |
43 | * | |
44 | * Returns NULL if decompression failed, or if the decompressed data | |
45 | * didn't contain a valid BMP signature. | |
46 | */ | |
47 | #ifdef CONFIG_VIDEO_BMP_GZIP | |
c01171ea | 48 | bmp_image_t *gunzip_bmp(unsigned long addr, unsigned long *lenp) |
43ef1c38 HCE |
49 | { |
50 | void *dst; | |
51 | unsigned long len; | |
52 | bmp_image_t *bmp; | |
53 | ||
54 | /* | |
55 | * Decompress bmp image | |
56 | */ | |
6d0f6bcf JCPV |
57 | len = CONFIG_SYS_VIDEO_LOGO_MAX_SIZE; |
58 | dst = malloc(CONFIG_SYS_VIDEO_LOGO_MAX_SIZE); | |
43ef1c38 HCE |
59 | if (dst == NULL) { |
60 | puts("Error: malloc in gunzip failed!\n"); | |
61 | return NULL; | |
62 | } | |
6d0f6bcf | 63 | if (gunzip(dst, CONFIG_SYS_VIDEO_LOGO_MAX_SIZE, (uchar *)addr, &len) != 0) { |
43ef1c38 HCE |
64 | free(dst); |
65 | return NULL; | |
66 | } | |
6d0f6bcf | 67 | if (len == CONFIG_SYS_VIDEO_LOGO_MAX_SIZE) |
43ef1c38 | 68 | puts("Image could be truncated" |
6d0f6bcf | 69 | " (increase CONFIG_SYS_VIDEO_LOGO_MAX_SIZE)!\n"); |
43ef1c38 HCE |
70 | |
71 | bmp = dst; | |
72 | ||
73 | /* | |
74 | * Check for bmp mark 'BM' | |
75 | */ | |
76 | if (!((bmp->header.signature[0] == 'B') && | |
77 | (bmp->header.signature[1] == 'M'))) { | |
78 | free(dst); | |
79 | return NULL; | |
80 | } | |
81 | ||
82 | puts("Gzipped BMP image detected!\n"); | |
83 | ||
84 | return bmp; | |
85 | } | |
86 | #else | |
c01171ea | 87 | bmp_image_t *gunzip_bmp(unsigned long addr, unsigned long *lenp) |
43ef1c38 HCE |
88 | { |
89 | return NULL; | |
90 | } | |
91 | #endif | |
92 | ||
93 | ||
059ae173 WD |
94 | /* |
95 | * Subroutine: do_bmp | |
96 | * | |
97 | * Description: Handler for 'bmp' command.. | |
98 | * | |
99 | * Inputs: argv[1] contains the subcommand | |
100 | * | |
101 | * Return: None | |
102 | * | |
103 | */ | |
104 | int do_bmp(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
105 | { | |
106 | ulong addr; | |
4b248f3f | 107 | int x = 0, y = 0; |
059ae173 WD |
108 | |
109 | switch (argc) { | |
110 | case 2: /* use load_addr as default address */ | |
111 | addr = load_addr; | |
112 | break; | |
113 | case 3: /* use argument */ | |
114 | addr = simple_strtoul(argv[2], NULL, 16); | |
115 | break; | |
4b248f3f WD |
116 | case 5: |
117 | addr = simple_strtoul(argv[2], NULL, 16); | |
118 | x = simple_strtoul(argv[3], NULL, 10); | |
119 | y = simple_strtoul(argv[4], NULL, 10); | |
120 | break; | |
059ae173 | 121 | default: |
62c3ae7c | 122 | cmd_usage(cmdtp); |
059ae173 WD |
123 | return 1; |
124 | } | |
125 | ||
126 | /* Allow for short names | |
127 | * Adjust length if more sub-commands get added | |
128 | */ | |
129 | if (strncmp(argv[1],"info",1) == 0) { | |
130 | return (bmp_info(addr)); | |
131 | } else if (strncmp(argv[1],"display",1) == 0) { | |
4b248f3f | 132 | return (bmp_display(addr, x, y)); |
059ae173 | 133 | } else { |
62c3ae7c | 134 | cmd_usage(cmdtp); |
059ae173 WD |
135 | return 1; |
136 | } | |
137 | } | |
138 | ||
0d498393 | 139 | U_BOOT_CMD( |
4b248f3f | 140 | bmp, 5, 1, do_bmp, |
2fb2604d | 141 | "manipulate BMP image data", |
4b248f3f | 142 | "info <imageAddr> - display image info\n" |
a89c33db | 143 | "bmp display <imageAddr> [x y] - display image at x,y" |
b0fce99b WD |
144 | ); |
145 | ||
059ae173 WD |
146 | /* |
147 | * Subroutine: bmp_info | |
148 | * | |
149 | * Description: Show information about bmp file in memory | |
150 | * | |
151 | * Inputs: addr address of the bmp file | |
152 | * | |
153 | * Return: None | |
154 | * | |
155 | */ | |
156 | static int bmp_info(ulong addr) | |
157 | { | |
158 | bmp_image_t *bmp=(bmp_image_t *)addr; | |
43ef1c38 | 159 | unsigned long len; |
c29ab9d7 | 160 | |
059ae173 | 161 | if (!((bmp->header.signature[0]=='B') && |
43ef1c38 HCE |
162 | (bmp->header.signature[1]=='M'))) |
163 | bmp = gunzip_bmp(addr, &len); | |
c29ab9d7 | 164 | |
43ef1c38 | 165 | if (bmp == NULL) { |
059ae173 | 166 | printf("There is no valid bmp file at the given address\n"); |
43ef1c38 | 167 | return 1; |
059ae173 | 168 | } |
43ef1c38 | 169 | |
059ae173 WD |
170 | printf("Image size : %d x %d\n", le32_to_cpu(bmp->header.width), |
171 | le32_to_cpu(bmp->header.height)); | |
172 | printf("Bits per pixel: %d\n", le16_to_cpu(bmp->header.bit_count)); | |
173 | printf("Compression : %d\n", le32_to_cpu(bmp->header.compression)); | |
c29ab9d7 | 174 | |
43ef1c38 HCE |
175 | if ((unsigned long)bmp != addr) |
176 | free(bmp); | |
c29ab9d7 | 177 | |
059ae173 WD |
178 | return(0); |
179 | } | |
180 | ||
181 | /* | |
182 | * Subroutine: bmp_display | |
183 | * | |
184 | * Description: Display bmp file located in memory | |
185 | * | |
186 | * Inputs: addr address of the bmp file | |
187 | * | |
188 | * Return: None | |
189 | * | |
190 | */ | |
4b248f3f | 191 | static int bmp_display(ulong addr, int x, int y) |
059ae173 | 192 | { |
43ef1c38 HCE |
193 | int ret; |
194 | bmp_image_t *bmp = (bmp_image_t *)addr; | |
195 | unsigned long len; | |
196 | ||
197 | if (!((bmp->header.signature[0]=='B') && | |
198 | (bmp->header.signature[1]=='M'))) | |
199 | bmp = gunzip_bmp(addr, &len); | |
200 | ||
201 | if (!bmp) { | |
202 | printf("There is no valid bmp file at the given address\n"); | |
203 | return 1; | |
204 | } | |
205 | ||
281e00a3 WD |
206 | #if defined(CONFIG_LCD) |
207 | extern int lcd_display_bitmap (ulong, int, int); | |
059ae173 | 208 | |
43ef1c38 | 209 | ret = lcd_display_bitmap ((unsigned long)bmp, x, y); |
281e00a3 | 210 | #elif defined(CONFIG_VIDEO) |
4b248f3f | 211 | extern int video_display_bitmap (ulong, int, int); |
43ef1c38 HCE |
212 | |
213 | ret = video_display_bitmap ((unsigned long)bmp, x, y); | |
281e00a3 WD |
214 | #else |
215 | # error bmp_display() requires CONFIG_LCD or CONFIG_VIDEO | |
4b248f3f | 216 | #endif |
43ef1c38 HCE |
217 | |
218 | if ((unsigned long)bmp != addr) | |
219 | free(bmp); | |
220 | ||
221 | return ret; | |
059ae173 | 222 | } |