diff options
author | June McEnroe <june@causal.agency> | 2018-07-30 15:14:49 -0400 |
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committer | June McEnroe <june@causal.agency> | 2018-07-30 15:14:49 -0400 |
commit | 7538237e9cc26f788ba0fd65c97019ef250b5004 (patch) | |
tree | 363688af89b8c4df7040dcfd116f34f4a0771cee /bin/gfx/fb.c | |
parent | Add Neckbeard Deathcamp (diff) | |
download | src-7538237e9cc26f788ba0fd65c97019ef250b5004.tar.gz src-7538237e9cc26f788ba0fd65c97019ef250b5004.zip |
Move graphical programs out of bin
I wonder when the last time was something needed -ledit...
Diffstat (limited to 'bin/gfx/fb.c')
-rw-r--r-- | bin/gfx/fb.c | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/bin/gfx/fb.c b/bin/gfx/fb.c deleted file mode 100644 index e1ef5e82..00000000 --- a/bin/gfx/fb.c +++ /dev/null @@ -1,87 +0,0 @@ -/* Copyright (c) 2018, June McEnroe <programble@gmail.com> - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU Affero General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include <err.h> -#include <fcntl.h> -#include <linux/fb.h> -#include <stdbool.h> -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/ioctl.h> -#include <sys/mman.h> -#include <sysexits.h> -#include <termios.h> -#include <unistd.h> - -#include "gfx.h" - -static struct termios saveTerm; -static void restoreTerm(void) { - tcsetattr(STDERR_FILENO, TCSADRAIN, &saveTerm); -} - -int main(int argc, char *argv[]) { - int error; - - error = init(argc, argv); - if (error) return error; - - const char *path = getenv("FRAMEBUFFER"); - if (!path) path = "/dev/fb0"; - - int fb = open(path, O_RDWR); - if (fb < 0) err(EX_OSFILE, "%s", path); - - struct fb_var_screeninfo info; - error = ioctl(fb, FBIOGET_VSCREENINFO, &info); - if (error) err(EX_IOERR, "%s", path); - - size_t size = 4 * info.xres * info.yres; - uint32_t *buf = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fb, 0); - if (buf == MAP_FAILED) err(EX_IOERR, "%s", path); - - error = tcgetattr(STDERR_FILENO, &saveTerm); - if (error) err(EX_IOERR, "tcgetattr"); - atexit(restoreTerm); - - struct termios term = saveTerm; - term.c_lflag &= ~(ICANON | ECHO); - error = tcsetattr(STDERR_FILENO, TCSADRAIN, &term); - if (error) err(EX_IOERR, "tcsetattr"); - - uint32_t saveBg = buf[0]; - - uint32_t back[info.xres * info.yres]; - for (;;) { - draw(back, info.xres, info.yres); - memcpy(buf, back, size); - - char in; - ssize_t len = read(STDERR_FILENO, &in, 1); - if (len < 0) err(EX_IOERR, "read"); - if (!len) return EX_DATAERR; - - if (!input(in)) { - for (uint32_t i = 0; i < info.xres * info.yres; ++i) { - buf[i] = saveBg; - } - fprintf(stderr, "%s\n", status()); - return EX_OK; - } - } -} |