mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-12-01 10:27:03 +03:00
777 lines
24 KiB
C
777 lines
24 KiB
C
/*
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* Copyright 2008 Vincent Sanders <vince@simtec.co.uk>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <signal.h>
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#include <sys/types.h>
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#include <inttypes.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <termios.h>
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#include <errno.h>
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#include <setjmp.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include <sys/wait.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <fnmatch.h>
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#include <linux/kd.h>
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#include <linux/vt.h>
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#include <linux/fb.h>
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#include <linux/input.h>
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#include "css/css.h"
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#include "utils/messages.h"
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#include "desktop/gui.h"
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/* #include "desktop/textinput.h" cannot include this because it conflicts with
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the linux defines */
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#define NSKEY_PAGE_DOWN 135
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#define NSKEY_PAGE_UP 134
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#define NSKEY_DOWN 31
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#define NSKEY_UP 30
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#define NSKEY_LEFT 28
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#define NSKEY_RIGHT 29
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#define NSKEY_ESCAPE 27
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#include "framebuffer/fb_gui.h"
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#include "framebuffer/fb_tk.h"
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#include "framebuffer/fb_plotters.h"
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#include "framebuffer/fb_schedule.h"
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#include "framebuffer/fb_cursor.h"
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#include "framebuffer/fb_frontend.h"
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#include "framebuffer/fb_options.h"
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#include "utils/log.h"
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#include "utils/messages.h"
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#define FB_ACTIVE 0
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#define FB_REL_REQ 1
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#define FB_INACTIVE 2
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#define FB_ACQ_REQ 3
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struct fb_fix_screeninfo fb_fix;
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struct fb_var_screeninfo fb_var;
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unsigned char *fb_mem;
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int fb_mem_offset = 0;
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int fb_switch_state = FB_ACTIVE;
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static int fb,tty;
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static int orig_vt_no = 0;
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static struct vt_mode vt_mode;
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static int kd_mode;
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static struct vt_mode vt_omode;
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static struct termios term;
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static struct fb_var_screeninfo fb_ovar;
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static unsigned short ored[256], ogreen[256], oblue[256], otransp[256];
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static struct fb_cmap ocmap = { 0, 256, ored, ogreen, oblue, otransp };
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typedef struct _input_dev {
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struct _input_dev *next;
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int fd;
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} fb_input_dev;
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static fb_input_dev *inputdevs = 0;
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/* -------------------------------------------------------------------- */
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/* devices */
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struct DEVS {
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const char *fb0;
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const char *fbnr;
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const char *ttynr;
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};
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struct DEVS devs_default = {
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.fb0 = "/dev/fb0",
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.fbnr = "/dev/fb%d",
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.ttynr = "/dev/tty%d",
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};
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struct DEVS *devices;
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static char *
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fconcat(const char *base, const char *leaf)
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{
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static char buffer[PATH_MAX];
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snprintf(buffer, PATH_MAX, "%s/%s", base, leaf);
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return buffer;
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}
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/* Input device opening */
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static void
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fb_open_input_devices(void)
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{
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DIR *dir;
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fb_input_dev *d;
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struct dirent *de;
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const char *basepath = option_fb_input_devpath ? option_fb_input_devpath : "/dev/input";
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dir = opendir(basepath);
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if (dir == NULL)
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return;
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while ((de = readdir(dir)) != NULL) {
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if (fnmatch(option_fb_input_glob ?
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option_fb_input_glob : "event*",
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de->d_name, 0) == 0) {
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char *cc = fconcat(basepath, de->d_name);
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int fd = open(cc, O_RDONLY | O_NONBLOCK);
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if (fd >= 0) {
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d = calloc(1, sizeof(fb_input_dev));
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d->next = inputdevs;
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inputdevs = d;
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d->fd = fd;
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}
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}
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}
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closedir(dir);
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}
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/* -------------------------------------------------------------------- */
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/* console switching */
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static void
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fb_switch_signal(int signal)
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{
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if (signal == SIGUSR1) {
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/* release */
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fb_switch_state = FB_REL_REQ;
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}
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if (signal == SIGUSR2) {
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/* acquisition */
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fb_switch_state = FB_ACQ_REQ;
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}
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}
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static int
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fb_switch_init(void)
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{
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struct sigaction act,old;
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memset(&act, 0, sizeof(act));
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act.sa_handler = fb_switch_signal;
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sigemptyset(&act.sa_mask);
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sigaction(SIGUSR1, &act, &old);
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sigaction(SIGUSR2, &act, &old);
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if (ioctl(tty,VT_GETMODE, &vt_mode) == -1) {
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perror("ioctl VT_GETMODE");
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exit(1);
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}
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vt_mode.mode = VT_PROCESS;
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vt_mode.waitv = 0;
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vt_mode.relsig = SIGUSR1;
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vt_mode.acqsig = SIGUSR2;
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if (ioctl(tty,VT_SETMODE, &vt_mode) == -1) {
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perror("ioctl VT_SETMODE");
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exit(1);
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}
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return 0;
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}
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/* -------------------------------------------------------------------- */
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/* initialisation & cleanup */
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static int
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fb_setmode(const char *name, int bpp)
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{
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FILE *fp;
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char line[80], label[32], value[16];
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int geometry = 0;
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int timings = 0;
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/* load current values */
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if (ioctl(fb, FBIOGET_VSCREENINFO, &fb_var) == -1) {
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perror("ioctl FBIOGET_VSCREENINFO");
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exit(1);
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}
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if (name == NULL)
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return -1;
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if ((fp = fopen("/etc/fb.modes","r")) == NULL)
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return -1;
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while (NULL != fgets(line,79,fp)) {
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if ((sscanf(line, "mode \"%31[^\"]\"", label) == 1) &&
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(strcmp(label,name) == 0)) {
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/* fill in new values */
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fb_var.sync = 0;
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fb_var.vmode = 0;
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while ((fgets(line,79,fp) != NULL) &&
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(strstr(line,"endmode") == NULL)) {
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if (5 == sscanf(line," geometry %d %d %d %d %d",
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&fb_var.xres,&fb_var.yres,
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&fb_var.xres_virtual,&fb_var.yres_virtual,
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&fb_var.bits_per_pixel))
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geometry = 1;
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if (7 == sscanf(line," timings %d %d %d %d %d %d %d",
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&fb_var.pixclock,
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&fb_var.left_margin, &fb_var.right_margin,
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&fb_var.upper_margin, &fb_var.lower_margin,
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&fb_var.hsync_len, &fb_var.vsync_len))
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timings = 1;
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if (1 == sscanf(line, " hsync %15s",value) &&
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0 == strcasecmp(value,"high"))
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fb_var.sync |= FB_SYNC_HOR_HIGH_ACT;
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if (1 == sscanf(line, " vsync %15s",value) &&
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0 == strcasecmp(value,"high"))
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fb_var.sync |= FB_SYNC_VERT_HIGH_ACT;
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if (1 == sscanf(line, " csync %15s",value) &&
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0 == strcasecmp(value,"high"))
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fb_var.sync |= FB_SYNC_COMP_HIGH_ACT;
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if (1 == sscanf(line, " extsync %15s",value) &&
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0 == strcasecmp(value,"true"))
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fb_var.sync |= FB_SYNC_EXT;
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if (1 == sscanf(line, " laced %15s",value) &&
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0 == strcasecmp(value,"true"))
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fb_var.vmode |= FB_VMODE_INTERLACED;
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if (1 == sscanf(line, " double %15s",value) &&
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0 == strcasecmp(value,"true"))
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fb_var.vmode |= FB_VMODE_DOUBLE;
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}
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/* ok ? */
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if (!geometry || !timings)
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return -1;
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if (bpp != 0)
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fb_var.bits_per_pixel = bpp;
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/* set */
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fb_var.xoffset = 0;
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fb_var.yoffset = 0;
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if (ioctl(fb, FBIOPUT_VSCREENINFO, &fb_var) == -1)
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perror("ioctl FBIOPUT_VSCREENINFO");
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/* look what we have now ... */
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if (ioctl(fb, FBIOGET_VSCREENINFO, &fb_var) == -1) {
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perror("ioctl FBIOGET_VSCREENINFO");
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exit(1);
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}
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return 0;
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}
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}
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return -1;
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}
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static void
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fb_setvt(int vtno)
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{
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struct vt_stat vts;
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char vtname[12];
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if (vtno < 0) {
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if ((ioctl(tty, VT_OPENQRY, &vtno) == -1) || (vtno == -1)) {
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perror("ioctl VT_OPENQRY");
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exit(1);
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}
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}
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vtno &= 0xff;
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sprintf(vtname, devices->ttynr, vtno);
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chown(vtname, getuid(), getgid());
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if (-1 == access(vtname, R_OK | W_OK)) {
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fprintf(stderr,"access %s: %s\n",vtname,strerror(errno));
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exit(1);
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}
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tty = open(vtname,O_RDWR);
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if (ioctl(tty,VT_GETSTATE, &vts) == -1) {
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perror("ioctl VT_GETSTATE");
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exit(1);
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}
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orig_vt_no = vts.v_active;
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if (ioctl(tty,VT_ACTIVATE, vtno) == -1) {
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perror("ioctl VT_ACTIVATE");
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exit(1);
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}
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if (ioctl(tty,VT_WAITACTIVE, vtno) == -1) {
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perror("ioctl VT_WAITACTIVE");
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exit(1);
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}
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}
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/* Hmm. radeonfb needs this. matroxfb doesn't. */
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static int
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fb_activate_current(int tty)
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{
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struct vt_stat vts;
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if (ioctl(tty,VT_GETSTATE, &vts) == -1) {
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perror("ioctl VT_GETSTATE");
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return -1;
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}
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if (ioctl(tty,VT_ACTIVATE, vts.v_active) == -1) {
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perror("ioctl VT_ACTIVATE");
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return -1;
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}
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if (ioctl(tty,VT_WAITACTIVE, vts.v_active) == -1) {
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perror("ioctl VT_WAITACTIVE");
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return -1;
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}
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return 0;
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}
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static void
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fb_cleanup(void)
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{
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/* restore console */
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if (ioctl(fb,FBIOPUT_VSCREENINFO,&fb_ovar) == -1)
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perror("ioctl FBIOPUT_VSCREENINFO");
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if (ioctl(fb,FBIOGET_FSCREENINFO,&fb_fix) == -1)
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perror("ioctl FBIOGET_FSCREENINFO");
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if ((fb_ovar.bits_per_pixel == 8) ||
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(fb_fix.visual == FB_VISUAL_DIRECTCOLOR)) {
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if (ioctl(fb,FBIOPUTCMAP,&ocmap) == -1)
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perror("ioctl FBIOPUTCMAP");
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}
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close(fb);
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if (ioctl(tty,KDSETMODE, kd_mode) == -1)
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perror("ioctl KDSETMODE");
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if (ioctl(tty,VT_SETMODE, &vt_omode) == -1)
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perror("ioctl VT_SETMODE");
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if (orig_vt_no && (ioctl(tty, VT_ACTIVATE, orig_vt_no) == -1))
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perror("ioctl VT_ACTIVATE");
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if (orig_vt_no && (ioctl(tty, VT_WAITACTIVE, orig_vt_no) == -1))
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perror("ioctl VT_WAITACTIVE");
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tcsetattr(tty, TCSANOW, &term);
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close(tty);
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}
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static int
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framebuffer_init(const char *device, int width, int height, int refresh, int bpp, int vt)
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{
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char fbdev[16];
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struct vt_stat vts;
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long pm = ~(sysconf(_SC_PAGESIZE) - 1);
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char mode[32];
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snprintf(mode, 32, "%dx%d-%d", width, height, refresh);
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devices = &devs_default;
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tty = 0;
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if (vt != 0)
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fb_setvt(vt);
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if (ioctl(tty,VT_GETSTATE, &vts) == -1) {
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fprintf(stderr,
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"ioctl VT_GETSTATE: %s (not a linux console?)\n",
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strerror(errno));
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exit(1);
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}
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if (device == NULL) {
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device = getenv("FRAMEBUFFER");
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if (device == NULL) {
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struct fb_con2fbmap c2m;
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if ((fb = open(devices->fb0, O_RDWR, 0)) == -1) {
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fprintf(stderr,
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"open %s: %s\n",
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devices->fb0,
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strerror(errno));
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exit(1);
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}
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c2m.console = vts.v_active;
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if (ioctl(fb, FBIOGET_CON2FBMAP, &c2m) == -1) {
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perror("ioctl FBIOGET_CON2FBMAP");
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exit(1);
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}
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close(fb);
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fprintf(stderr,"map: vt%02d => fb%d\n",
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c2m.console, c2m.framebuffer);
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sprintf(fbdev, devices->fbnr, c2m.framebuffer);
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device = fbdev;
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}
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}
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/* get current settings (which we have to restore) */
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if ((fb = open(device, O_RDWR)) == -1) {
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fprintf(stderr, "open %s: %s\n", device, strerror(errno));
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exit(1);
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}
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if (ioctl(fb, FBIOGET_VSCREENINFO, &fb_ovar) == -1) {
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perror("ioctl FBIOGET_VSCREENINFO");
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exit(1);
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}
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if (ioctl(fb, FBIOGET_FSCREENINFO, &fb_fix) == -1) {
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perror("ioctl FBIOGET_FSCREENINFO");
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exit(1);
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}
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if ((fb_ovar.bits_per_pixel == 8) ||
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(fb_fix.visual == FB_VISUAL_DIRECTCOLOR)) {
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if (ioctl(fb, FBIOGETCMAP, &ocmap) == -1) {
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perror("ioctl FBIOGETCMAP");
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exit(1);
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}
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}
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if (ioctl(tty, KDGETMODE, &kd_mode) == -1) {
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perror("ioctl KDGETMODE");
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exit(1);
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}
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if (ioctl(tty,VT_GETMODE, &vt_omode) == -1) {
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perror("ioctl VT_GETMODE");
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exit(1);
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}
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tcgetattr(tty, &term);
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/* switch mode */
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fb_setmode(mode, bpp);
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/* checks & initialisation */
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if (ioctl(fb, FBIOGET_FSCREENINFO, &fb_fix) == -1) {
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perror("ioctl FBIOGET_FSCREENINFO");
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exit(1);
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}
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if (fb_fix.type != FB_TYPE_PACKED_PIXELS) {
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fprintf(stderr,"can handle only packed pixel frame buffers\n");
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goto err;
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}
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fb_mem_offset = (unsigned long)(fb_fix.smem_start) & (~pm);
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fb_mem = mmap(NULL, fb_fix.smem_len + fb_mem_offset,
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PROT_READ | PROT_WRITE, MAP_SHARED, fb, 0);
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if (-1L == (long)fb_mem) {
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perror("mmap");
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goto err;
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}
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/* move viewport to upper left corner */
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if ((fb_var.xoffset != 0) ||
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(fb_var.yoffset != 0)) {
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fb_var.xoffset = 0;
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fb_var.yoffset = 0;
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if (ioctl(fb, FBIOPAN_DISPLAY, &fb_var) == -1) {
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perror("ioctl FBIOPAN_DISPLAY");
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goto err;
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}
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}
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if (ioctl(tty, KDSETMODE, KD_GRAPHICS) == -1) {
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perror("ioctl KDSETMODE");
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goto err;
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}
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fb_activate_current(tty);
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/* cls */
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memset(fb_mem + fb_mem_offset, 0, fb_fix.smem_len);
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return fb;
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err:
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fb_cleanup();
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exit(1);
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}
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/* -------------------------------------------------------------------- */
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/* handle fatal errors */
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static jmp_buf fb_fatal_cleanup;
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static void
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fb_catch_exit_signal(int signal)
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{
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siglongjmp(fb_fatal_cleanup,signal);
|
|
}
|
|
|
|
static void
|
|
fb_catch_exit_signals(void)
|
|
{
|
|
struct sigaction act,old;
|
|
int termsig;
|
|
|
|
memset(&act,0,sizeof(act));
|
|
act.sa_handler = fb_catch_exit_signal;
|
|
sigemptyset(&act.sa_mask);
|
|
sigaction(SIGINT, &act, &old);
|
|
sigaction(SIGQUIT, &act, &old);
|
|
sigaction(SIGTERM, &act, &old);
|
|
|
|
sigaction(SIGABRT, &act, &old);
|
|
sigaction(SIGTSTP, &act, &old);
|
|
|
|
sigaction(SIGBUS, &act, &old);
|
|
sigaction(SIGILL, &act, &old);
|
|
sigaction(SIGSEGV, &act, &old);
|
|
|
|
if ((termsig = sigsetjmp(fb_fatal_cleanup,0)) == 0)
|
|
return;
|
|
|
|
/* cleanup */
|
|
fb_cleanup();
|
|
fprintf(stderr, "Oops: %s\n", sys_siglist[termsig]);
|
|
exit(42);
|
|
}
|
|
|
|
framebuffer_t *fb_os_init(int argc, char** argv)
|
|
{
|
|
framebuffer_t *newfb;
|
|
int ploop;
|
|
int fb_width;
|
|
int fb_height;
|
|
int fb_refresh;
|
|
int fb_depth;
|
|
|
|
if ((option_window_width != 0) &&
|
|
(option_window_height != 0)) {
|
|
fb_width = option_window_width;
|
|
fb_height = option_window_height;
|
|
} else {
|
|
fb_width = 800;
|
|
fb_height = 600;
|
|
}
|
|
|
|
if (option_fb_refresh != 0) {
|
|
fb_refresh = option_fb_refresh;
|
|
} else {
|
|
fb_refresh = 60;
|
|
}
|
|
|
|
fb_depth = option_fb_depth;
|
|
if ((fb_depth != 32) &&
|
|
(fb_depth != 16) &&
|
|
(fb_depth != 8))
|
|
fb_depth = 16; /* sanity checked depth in bpp */
|
|
|
|
framebuffer_init(option_fb_device, fb_width, fb_height, fb_refresh, fb_depth, 1);
|
|
fb_switch_init();
|
|
fb_catch_exit_signals();
|
|
|
|
newfb = calloc(1, sizeof(framebuffer_t));
|
|
|
|
newfb->width = fb_var.xres;
|
|
newfb->height = fb_var.yres;
|
|
newfb->ptr = fb_mem;
|
|
newfb->linelen = fb_fix.line_length;
|
|
newfb->bpp = fb_var.bits_per_pixel;
|
|
|
|
if (newfb->bpp <= 8) {
|
|
for(ploop=0; ploop < 256; ploop++) {
|
|
newfb->palette[ploop] = 0xFF000000 |
|
|
ocmap.blue[ploop] << 16 |
|
|
ocmap.green[ploop] << 8 |
|
|
ocmap.red[ploop] ;
|
|
}
|
|
}
|
|
|
|
|
|
fb_open_input_devices();
|
|
|
|
return newfb;
|
|
}
|
|
|
|
void fb_os_quit(framebuffer_t *fb)
|
|
{
|
|
fb_cleanup();
|
|
}
|
|
|
|
|
|
static int keymap[] = {
|
|
-1, -1, '1', '2', '3', '4', '5', '6', '7', '8', /* 0 - 9 */
|
|
'9', '0', '-', '=', 8, 9, 'q', 'w', 'e', 'r', /* 10 - 19 */
|
|
't', 'y', 'u', 'i', 'o', 'p', '[', ']', 13, -1, /* 20 - 29 */
|
|
'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', /* 30 - 39 */
|
|
'\'', '#', -1, '\\', 'z', 'x', 'c', 'v', 'b', 'n', /* 40 - 49 */
|
|
'm', ',', '.', '/', -1, -1, -1, ' ', -1, -1, /* 50 - 59 */
|
|
};
|
|
|
|
static int sh_keymap[] = {
|
|
-1, -1, '!', '"', 0xa3, '$', '%', '^', '&', '*', /* 0 - 9 */
|
|
'(', ')', '_', '+', 8, 9, 'Q', 'W', 'E', 'R', /* 10 - 19 */
|
|
'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', 13, -1, /* 20 - 29 */
|
|
'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', /* 30 - 39 */
|
|
'@', '~', -1, '|', 'Z', 'X', 'C', 'V', 'B', 'N', /* 40 - 49 */
|
|
'M', '<', '>', '?', -1, -1, -1, ' ', -1, -1, /* 50 - 59 */
|
|
};
|
|
|
|
|
|
/* performs character mapping */
|
|
static int keycode_to_ucs4(int code, bool shift)
|
|
{
|
|
int ucs4 = -1;
|
|
|
|
if (shift) {
|
|
if ((code >= 0) && (code < sizeof(sh_keymap)))
|
|
ucs4 = sh_keymap[code];
|
|
} else {
|
|
if ((code >= 0) && (code < sizeof(keymap)))
|
|
ucs4 = keymap[code];
|
|
}
|
|
return ucs4;
|
|
}
|
|
|
|
void fb_os_input(fbtk_widget_t *root, bool active)
|
|
{
|
|
ssize_t amt;
|
|
struct input_event event;
|
|
fb_input_dev *d;
|
|
int ucs4 = -1;
|
|
static bool shift = false;
|
|
|
|
for (d = inputdevs; d != NULL; d = d->next) {
|
|
amt = read(d->fd, &event, sizeof(struct input_event));
|
|
|
|
if (amt > 0) {
|
|
if (event.type == EV_KEY) {
|
|
if (event.value == 0) {
|
|
/* key up */
|
|
switch (event.code) {
|
|
case KEY_LEFTSHIFT:
|
|
case KEY_RIGHTSHIFT:
|
|
shift = false;
|
|
break;
|
|
|
|
case BTN_LEFT:
|
|
fbtk_click(root, BROWSER_MOUSE_CLICK_1);
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
|
|
switch (event.code) {
|
|
case KEY_PAGEDOWN:
|
|
ucs4 = NSKEY_PAGE_DOWN;
|
|
break;
|
|
|
|
case KEY_PAGEUP:
|
|
ucs4 = NSKEY_PAGE_UP;
|
|
break;
|
|
|
|
case KEY_DOWN:
|
|
ucs4 = NSKEY_DOWN;
|
|
break;
|
|
|
|
case KEY_UP:
|
|
ucs4 = NSKEY_UP;
|
|
break;
|
|
|
|
case KEY_LEFT:
|
|
ucs4 = NSKEY_LEFT;
|
|
break;
|
|
|
|
case KEY_RIGHT:
|
|
ucs4 = NSKEY_RIGHT;
|
|
break;
|
|
|
|
case KEY_ESC:
|
|
ucs4 = NSKEY_ESCAPE;
|
|
break;
|
|
|
|
case BTN_LEFT:
|
|
fbtk_click(root, BROWSER_MOUSE_PRESS_1);
|
|
break;
|
|
|
|
case KEY_LEFTSHIFT:
|
|
case KEY_RIGHTSHIFT:
|
|
shift = true;
|
|
break;
|
|
|
|
default:
|
|
ucs4 = keycode_to_ucs4(event.code, shift);
|
|
|
|
}
|
|
} else if (event.type == EV_REL) {
|
|
switch (event.code) {
|
|
case REL_X:
|
|
fbtk_move_pointer(root, event.value, 0, true);
|
|
break;
|
|
|
|
case REL_Y:
|
|
fbtk_move_pointer(root, 0, event.value, true);
|
|
break;
|
|
|
|
case REL_WHEEL:
|
|
if (event.value > 0)
|
|
fbtk_input(root, NSKEY_UP);
|
|
else
|
|
fbtk_input(root, NSKEY_DOWN);
|
|
break;
|
|
}
|
|
} else if (event.type == EV_ABS) {
|
|
switch (event.code) {
|
|
case ABS_X:
|
|
fbtk_move_pointer(root, event.value, -1, false);
|
|
break;
|
|
|
|
case ABS_Y:
|
|
fbtk_move_pointer(root, -1, event.value, false);
|
|
break;
|
|
|
|
}
|
|
}
|
|
|
|
if (ucs4 != -1) {
|
|
fbtk_input(root, ucs4);
|
|
ucs4 = -1;
|
|
}
|
|
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
fb_os_option_override(void)
|
|
{
|
|
}
|
|
|
|
/* called by generic code to inform os code of screen update */
|
|
void
|
|
fb_os_redraw(struct bbox_s *box)
|
|
{
|
|
}
|
|
|
|
/*
|
|
* Local Variables:
|
|
* c-basic-offset:8
|
|
* End:
|
|
*/
|