Navigation
- Accueil
- Présentation :
- FAQ
- Bugs et errata
- Contributions de lecteurs
- Téléchargements
- LXR (référencement des sources)
- Mailing-list
- Liens et Projets reliés
Site hébergé par :
Site hébergé par :
|
[ source navigation ] [ diff markup ] [ identifier search ] [ general search ] |
|||
|
||||
001 /* Copyright (C) 2005 David Decotigny 001 /* Copyright (C) 2005 David Decotigny 002 002 003 This program is free software; you can redi 003 This program is free software; you can redistribute it and/or 004 modify it under the terms of the GNU Genera 004 modify it under the terms of the GNU General Public License 005 as published by the Free Software Foundatio 005 as published by the Free Software Foundation; either version 2 006 of the License, or (at your option) any lat 006 of the License, or (at your option) any later version. 007 007 008 This program is distributed in the hope tha 008 This program is distributed in the hope that it will be useful, 009 but WITHOUT ANY WARRANTY; without even the 009 but WITHOUT ANY WARRANTY; without even the implied warranty of 010 MERCHANTABILITY or FITNESS FOR A PARTICULAR 010 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 011 GNU General Public License for more details 011 GNU General Public License for more details. 012 012 013 You should have received a copy of the GNU 013 You should have received a copy of the GNU General Public License 014 along with this program; if not, write to t 014 along with this program; if not, write to the Free Software 015 Foundation, Inc., 59 Temple Place - Suite 3 015 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 016 USA. 016 USA. 017 */ 017 */ 018 018 019 #include <crt.h> 019 #include <crt.h> 020 #include <libc.h> 020 #include <libc.h> 021 #include <string.h> 021 #include <string.h> 022 #include <stdarg.h> 022 #include <stdarg.h> 023 #include <debug.h> 023 #include <debug.h> 024 024 025 /** 025 /** 026 * @file banner.c 026 * @file banner.c 027 * 027 * 028 * Basic tests demonstrating how to create mul 028 * Basic tests demonstrating how to create multithreaded processes 029 */ 029 */ 030 030 031 static char *str1 = 031 static char *str1 = 032 " _ _ _ _ ___ 032 " _ _ _ _ ___ _ _ _ _ _ " 033 " | | | | ___ | | | | ___ |_ _| 033 " | | | | ___ | | | | ___ |_ _| __ _ _ __ ___ | |_ | |__ _ __ ___ __ _ __| | / | | |" 034 " | |_| | / _ \\ | | | | / _ \\ | | 034 " | |_| | / _ \\ | | | | / _ \\ | | / _` | | '_ ` _ \\ | __| | '_ \\ | '__| / _ \\ / _` | / _` | | | | |" 035 " | _ | | __/ | | | | | (_) | _ | | 035 " | _ | | __/ | | | | | (_) | _ | | | (_| | | | | | | | | |_ | | | | | | | __/ | (_| | | (_| | | | |_|" 036 " |_| |_| \\___| |_| |_| \\___/ ( ) |___| 036 " |_| |_| \\___| |_| |_| \\___/ ( ) |___| \\__,_| |_| |_| |_| \\__| |_| |_| |_| \\___| \\__,_| \\__,_| |_| (_)" 037 " |/ 037 " |/ "; 038 038 039 static char *str2 = 039 static char *str2 = 040 " _ _ _ _ ___ 040 " _ _ _ _ ___ _ _ _ ____ _ " 041 " | | | | ___ | | | | ___ |_ _| 041 " | | | | ___ | | | | ___ |_ _| __ _ _ __ ___ | |_ | |__ _ __ ___ __ _ __| | |___ \\ | |" 042 " | |_| | / _ \\ | | | | / _ \\ | | 042 " | |_| | / _ \\ | | | | / _ \\ | | / _` | | '_ ` _ \\ | __| | '_ \\ | '__| / _ \\ / _` | / _` | __) | | |" 043 " | _ | | __/ | | | | | (_) | _ | | 043 " | _ | | __/ | | | | | (_) | _ | | | (_| | | | | | | | | |_ | | | | | | | __/ | (_| | | (_| | / __/ |_|" 044 " |_| |_| \\___| |_| |_| \\___/ ( ) |___| 044 " |_| |_| \\___| |_| |_| \\___/ ( ) |___| \\__,_| |_| |_| |_| \\__| |_| |_| |_| \\___| \\__,_| \\__,_| |_____| (_)" 045 " |/ 045 " |/ "; 046 046 047 /** 047 /** 048 * Structure of a character in the x86 video m 048 * Structure of a character in the x86 video memory mapping (text mode) 049 */ 049 */ 050 static struct x86_videomem_char 050 static struct x86_videomem_char 051 { 051 { 052 unsigned char character; 052 unsigned char character; 053 unsigned char attribute; 053 unsigned char attribute; 054 } * video; 054 } * video; 055 055 056 056 057 static void print(int line, int col, char c, u 057 static void print(int line, int col, char c, unsigned char attr) 058 { 058 { 059 video[line*80 + col].character = c; 059 video[line*80 + col].character = c; 060 video[line*80 + col].attribute = attr; 060 video[line*80 + col].attribute = attr; 061 } 061 } 062 062 063 063 064 /** 064 /** 065 * Helper function that scrolls the given stri 065 * Helper function that scrolls the given string on the screen 066 */ 066 */ 067 static void print_banner(int top_line, const c 067 static void print_banner(int top_line, const char * str, int nlines, 068 unsigned char attr, u 068 unsigned char attr, unsigned pause_ms, 069 int direction) 069 int direction) 070 { 070 { 071 int nbcols = strnlen(str, 16384) / nlines; 071 int nbcols = strnlen(str, 16384) / nlines; 072 int base_char = 0; 072 int base_char = 0; 073 073 074 while (1) 074 while (1) 075 { 075 { 076 int col; 076 int col; 077 077 078 for (col = 0 ; col < 80 ; col ++) 078 for (col = 0 ; col < 80 ; col ++) 079 { 079 { 080 int col_in_str = (col + base_char) % 080 int col_in_str = (col + base_char) % (nbcols + 20); 081 int line; 081 int line; 082 082 083 for (line = 0 ; line < nlines ; line 083 for (line = 0 ; line < nlines ; line ++) 084 if (col_in_str < nbcols) 084 if (col_in_str < nbcols) 085 print(top_line + line, col, str[ 085 print(top_line + line, col, str[line*nbcols + col_in_str], attr); 086 else 086 else 087 print(top_line + line, col, ' ', 087 print(top_line + line, col, ' ', attr); 088 } 088 } 089 089 090 _sos_nanosleep(0, pause_ms * 1000000); 090 _sos_nanosleep(0, pause_ms * 1000000); 091 091 092 if (direction > 0) 092 if (direction > 0) 093 base_char ++; 093 base_char ++; 094 else 094 else 095 base_char --; 095 base_char --; 096 096 097 if (base_char < 0) 097 if (base_char < 0) 098 base_char = nbcols + 20 - 1; 098 base_char = nbcols + 20 - 1; 099 } 099 } 100 } 100 } 101 101 102 102 103 struct thread_param 103 struct thread_param 104 { 104 { 105 int top_line; 105 int top_line; 106 const char * str; 106 const char * str; 107 int nlines; 107 int nlines; 108 unsigned char attr; 108 unsigned char attr; 109 unsigned int pause_ms; 109 unsigned int pause_ms; 110 int direction; 110 int direction; 111 }; 111 }; 112 112 113 113 114 static void banner_thread(const struct thread_ 114 static void banner_thread(const struct thread_param *p) 115 { 115 { 116 print_banner(p->top_line, p->str, p->nlines, 116 print_banner(p->top_line, p->str, p->nlines, p->attr, 117 p->pause_ms, p->direction); 117 p->pause_ms, p->direction); 118 } 118 } 119 119 120 static struct thread_param p1, p2; 120 static struct thread_param p1, p2; 121 int main() !! 121 int main(void) 122 { 122 { >> 123 int fd; >> 124 123 /* Map the x86 text-mode framebuffer in user 125 /* Map the x86 text-mode framebuffer in user space */ >> 126 fd = open("/dev/mem", O_RDWR); 124 video = mmap(0, 4096, 127 video = mmap(0, 4096, 125 PROT_READ | PROT_WRITE, 128 PROT_READ | PROT_WRITE, 126 MAP_SHARED, 129 MAP_SHARED, 127 "/dev/mem", 0xb8000); !! 130 fd, 0xb8000); >> 131 close(fd); 128 132 129 p1.top_line = 3; 133 p1.top_line = 3; 130 p1.str = str1; 134 p1.str = str1; 131 p1.nlines = 6; 135 p1.nlines = 6; 132 p1.attr = 14 | (7 << 4); 136 p1.attr = 14 | (7 << 4); 133 p1.pause_ms = 10; 137 p1.pause_ms = 10; 134 p1.direction = 1; 138 p1.direction = 1; 135 _sos_new_thread((sos_thread_func_t*)banner_t 139 _sos_new_thread((sos_thread_func_t*)banner_thread, (void*) & p1, 8192); 136 140 137 p2.top_line = 10; 141 p2.top_line = 10; 138 p2.str = str2; 142 p2.str = str2; 139 p2.nlines = 6; 143 p2.nlines = 6; 140 p2.attr = (4 << 4) | (7 << 4); 144 p2.attr = (4 << 4) | (7 << 4); 141 p2.pause_ms = 20; 145 p2.pause_ms = 20; 142 p2.direction = -1; 146 p2.direction = -1; 143 _sos_new_thread((sos_thread_func_t*)banner_t 147 _sos_new_thread((sos_thread_func_t*)banner_thread, (void*) & p2, 8192); 144 << 145 _sos_nanosleep(3, 0); << 146 148 147 return 0; 149 return 0; 148 } 150 }
| [ source navigation ] | [ diff markup ] | [ identifier search ] | [ general search ] |