diff options
author | Daniel Silverstone <dsilvers@netsurf-browser.org> | 2008-09-23 14:00:40 +0000 |
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committer | Daniel Silverstone <dsilvers@netsurf-browser.org> | 2008-09-23 14:00:40 +0000 |
commit | 3f5d902edd65ed2201f12914bc555872d3f45eb1 (patch) | |
tree | 272488db325e9a2fecb12c23eb0ae7b5c7deefcf /framebuffer/fb_frontend_linuxfb.c | |
parent | 9de2adbdf1ed8310894de18992e10dc26b4ae160 (diff) | |
download | netsurf-3f5d902edd65ed2201f12914bc555872d3f45eb1.tar.gz netsurf-3f5d902edd65ed2201f12914bc555872d3f45eb1.tar.bz2 |
Merged revisions 5309-5406,5409-5422 via svnmerge from
svn://svn.netsurf-browser.org/branches/vince/netsurf-fb
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r5309 | vince | 2008-09-13 10:59:10 +0100 (Sat, 13 Sep 2008) | 2 lines
first stab at framebuffer frontend
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r5313 | vince | 2008-09-14 15:08:52 +0100 (Sun, 14 Sep 2008) | 2 lines
add line plotters
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r5314 | vince | 2008-09-14 15:28:12 +0100 (Sun, 14 Sep 2008) | 2 lines
add rectangle plot to 16bpp plotters
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r5315 | vince | 2008-09-14 19:58:57 +0100 (Sun, 14 Sep 2008) | 2 lines
improve 16bpp image plot
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r5316 | vince | 2008-09-15 00:35:32 +0100 (Mon, 15 Sep 2008) | 2 lines
abstract the os specific framebuffer init
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r5317 | vince | 2008-09-15 11:18:51 +0100 (Mon, 15 Sep 2008) | 2 lines
first cut of linux frontend
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r5318 | vince | 2008-09-15 12:01:00 +0100 (Mon, 15 Sep 2008) | 2 lines
remove junk includes
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r5319 | vince | 2008-09-15 12:09:02 +0100 (Mon, 15 Sep 2008) | 2 lines
make plotters OS agnostic again
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r5322 | vince | 2008-09-15 15:55:01 +0100 (Mon, 15 Sep 2008) | 2 lines
Linux frontend operates
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r5323 | vince | 2008-09-15 16:32:47 +0100 (Mon, 15 Sep 2008) | 2 lines
abstract out OS specific input
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r5326 | vince | 2008-09-15 19:21:01 +0100 (Mon, 15 Sep 2008) | 2 lines
Improve linux mode setting
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r5329 | vince | 2008-09-15 21:13:33 +0100 (Mon, 15 Sep 2008) | 2 lines
improve text clipping
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r5339 | vince | 2008-09-16 00:07:57 +0100 (Tue, 16 Sep 2008) | 2 lines
possibly fix text clipping issue
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r5342 | vince | 2008-09-16 00:39:36 +0100 (Tue, 16 Sep 2008) | 2 lines
consolidate polygon plotters
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r5344 | dsilvers | 2008-09-16 10:21:06 +0100 (Tue, 16 Sep 2008) | 1 line
Fix up the framebuffer target makefile a bit more, add some config options for it
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r5345 | dsilvers | 2008-09-16 10:22:19 +0100 (Tue, 16 Sep 2008) | 1 line
Ensure the appropriate frontend is selected when building framebuffer
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r5346 | dsilvers | 2008-09-16 10:27:16 +0100 (Tue, 16 Sep 2008) | 1 line
Update build system to support targetting separate framebuffer frontends in different build trees, update executable to be nsfb-blah
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r5350 | vince | 2008-09-16 17:15:04 +0100 (Tue, 16 Sep 2008) | 1 line
Add -g to provide symbols for framebuffer link
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r5351 | vince | 2008-09-16 17:17:09 +0100 (Tue, 16 Sep 2008) | 1 line
framebuffer scheduler now works, plotters tweaked, gui tracks window redraw requirements better, keypresses not duplicated under linux fb
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r5352 | dsilvers | 2008-09-16 17:38:53 +0100 (Tue, 16 Sep 2008) | 1 line
Ensure we only allow one fetcher at a time
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r5361 | vince | 2008-09-17 11:48:44 +0100 (Wed, 17 Sep 2008) | 2 lines
initial cursor support
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r5362 | vince | 2008-09-17 13:56:47 +0100 (Wed, 17 Sep 2008) | 2 lines
add mouse handling
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r5363 | vince | 2008-09-17 14:14:44 +0100 (Wed, 17 Sep 2008) | 2 lines
add framebuffer resources
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r5364 | vince | 2008-09-17 17:12:21 +0100 (Wed, 17 Sep 2008) | 2 lines
add reasonable pointer
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r5366 | vince | 2008-09-17 17:17:25 +0100 (Wed, 17 Sep 2008) | 2 lines
fix pointer alpha
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r5370 | vince | 2008-09-18 13:43:53 +0100 (Thu, 18 Sep 2008) | 2 lines
warning squash and cleanup ready for trunk merge
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r5375 | vince | 2008-09-19 14:58:43 +0100 (Fri, 19 Sep 2008) | 2 lines
Working mouse navigation
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r5377 | vince | 2008-09-20 14:06:22 +0100 (Sat, 20 Sep 2008) | 2 lines
Improve scrolling
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r5378 | vince | 2008-09-20 14:46:46 +0100 (Sat, 20 Sep 2008) | 2 lines
fix redraw issues with scrolling
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r5380 | vince | 2008-09-20 17:08:43 +0100 (Sat, 20 Sep 2008) | 3 lines
Alter panning to use its own flag so it doesnt cause invalid redraw
operations
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r5381 | vince | 2008-09-20 21:52:45 +0100 (Sat, 20 Sep 2008) | 2 lines
add dummy framebuffer
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r5383 | vince | 2008-09-21 00:00:15 +0100 (Sun, 21 Sep 2008) | 2 lines
fix segfault when cursor is off teh bottom of teh screen
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r5384 | vince | 2008-09-21 00:06:08 +0100 (Sun, 21 Sep 2008) | 2 lines
fix off by one in pointer fix
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r5385 | vince | 2008-09-21 00:25:09 +0100 (Sun, 21 Sep 2008) | 2 lines
when fixing bloody silly off by one errors remember to fix *both* references
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r5387 | vince | 2008-09-21 00:38:13 +0100 (Sun, 21 Sep 2008) | 2 lines
last try at stopping the pointer segfault
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r5388 | vince | 2008-09-21 16:24:18 +0100 (Sun, 21 Sep 2008) | 2 lines
improve vertical text clipping
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r5392 | vince | 2008-09-21 23:11:51 +0100 (Sun, 21 Sep 2008) | 2 lines
Improve text plotters
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r5393 | vince | 2008-09-21 23:34:38 +0100 (Sun, 21 Sep 2008) | 2 lines
fix 32bpp line plotting
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r5394 | vince | 2008-09-22 00:00:03 +0100 (Mon, 22 Sep 2008) | 2 lines
Fix off by one error in line plotting clipping
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r5397 | vince | 2008-09-22 13:46:22 +0100 (Mon, 22 Sep 2008) | 2 lines
Fix bitmap tileing
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r5398 | vince | 2008-09-22 17:46:02 +0100 (Mon, 22 Sep 2008) | 2 lines
enable knockout renderer
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r5399 | vince | 2008-09-22 18:43:48 +0100 (Mon, 22 Sep 2008) | 2 lines
ensure clipping region lies within window, caused by knockout renderer
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r5400 | vince | 2008-09-22 19:20:25 +0100 (Mon, 22 Sep 2008) | 2 lines
update cursor to one swiped from X windows
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r5405 | vince | 2008-09-23 09:09:05 +0100 (Tue, 23 Sep 2008) | 2 lines
fix vertical scroll limit
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r5412 | dsilvers | 2008-09-23 10:53:14 +0100 (Tue, 23 Sep 2008) | 1 line
Revert noisy fetcher patch
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r5413 | dsilvers | 2008-09-23 10:58:00 +0100 (Tue, 23 Sep 2008) | 1 line
Add header guards
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r5414 | dsilvers | 2008-09-23 11:31:31 +0100 (Tue, 23 Sep 2008) | 1 line
Tidy the region clipping slightly
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r5416 | dsilvers | 2008-09-23 12:05:00 +0100 (Tue, 23 Sep 2008) | 1 line
Rationalise how the framebuffer frontend finds resources and options
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r5418 | dsilvers | 2008-09-23 13:59:00 +0100 (Tue, 23 Sep 2008) | 1 line
Ensure options are overridden after load, and squash an fb_gui.c warning
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r5419 | dsilvers | 2008-09-23 14:20:07 +0100 (Tue, 23 Sep 2008) | 1 line
Support fb_mode and fb_device options
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r5420 | dsilvers | 2008-09-23 14:21:48 +0100 (Tue, 23 Sep 2008) | 1 line
Support option_fb_device in the able frontend
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r5421 | dsilvers | 2008-09-23 14:25:17 +0100 (Tue, 23 Sep 2008) | 1 line
Ensure target_blank is disabled
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r5422 | dsilvers | 2008-09-23 14:39:00 +0100 (Tue, 23 Sep 2008) | 1 line
Rework linux fb frontend to support scanning and opening all event devices for input
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svn path=/trunk/netsurf/; revision=5423
Diffstat (limited to 'framebuffer/fb_frontend_linuxfb.c')
-rw-r--r-- | framebuffer/fb_frontend_linuxfb.c | 681 |
1 files changed, 681 insertions, 0 deletions
diff --git a/framebuffer/fb_frontend_linuxfb.c b/framebuffer/fb_frontend_linuxfb.c new file mode 100644 index 000000000..d33eef7bb --- /dev/null +++ b/framebuffer/fb_frontend_linuxfb.c @@ -0,0 +1,681 @@ +/* + * Copyright 2008 Vincent Sanders <vince@simtec.co.uk> + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * NetSurf is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * NetSurf 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <signal.h> +#include <sys/types.h> +#include <inttypes.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <fcntl.h> +#include <termios.h> +#include <errno.h> +#include <setjmp.h> +#include <sys/ioctl.h> +#include <sys/mman.h> +#include <sys/wait.h> +#include <sys/stat.h> +#include <dirent.h> +#include <fnmatch.h> + +#include <linux/kd.h> +#include <linux/vt.h> +#include <linux/fb.h> + +#include <linux/input.h> + +#include "css/css.h" +#include "desktop/browser.h" +#include "desktop/gui.h" +#include "framebuffer/fb_gui.h" +#include "framebuffer/fb_plotters.h" +#include "framebuffer/fb_schedule.h" +#include "framebuffer/fb_cursor.h" +#include "framebuffer/fb_frontend.h" +#include "framebuffer/fb_options.h" + +#include "utils/log.h" +#include "utils/messages.h" + +#define FB_ACTIVE 0 +#define FB_REL_REQ 1 +#define FB_INACTIVE 2 +#define FB_ACQ_REQ 3 + + +struct fb_fix_screeninfo fb_fix; +struct fb_var_screeninfo fb_var; +unsigned char *fb_mem; +int fb_mem_offset = 0; +int fb_switch_state = FB_ACTIVE; + + +static int fb,tty; +static int orig_vt_no = 0; +static struct vt_mode vt_mode; + +static int kd_mode; +static struct vt_mode vt_omode; +static struct termios term; +static struct fb_var_screeninfo fb_ovar; +static unsigned short ored[256], ogreen[256], oblue[256], otransp[256]; +static struct fb_cmap ocmap = { 0, 256, ored, ogreen, oblue, otransp }; + +typedef struct _input_dev { + struct _input_dev *next; + int fd; +} fb_input_dev; + +static fb_input_dev *inputdevs = 0; + +/* -------------------------------------------------------------------- */ +/* devices */ + +struct DEVS { + const char *fb0; + const char *fbnr; + const char *ttynr; +}; + +struct DEVS devs_default = { + .fb0 = "/dev/fb0", + .fbnr = "/dev/fb%d", + .ttynr = "/dev/tty%d", +}; + +struct DEVS devs_devfs = { + .fb0 = "/dev/fb/0", + .fbnr = "/dev/fb/%d", + .ttynr = "/dev/vc/%d", +}; +struct DEVS *devices; + +static void dev_init(void) +{ + struct stat dummy; + + if (NULL != devices) + return; + if (0 == stat("/dev/.devfsd",&dummy)) + devices = &devs_devfs; + else + devices = &devs_default; +} + +static char * +fconcat(const char *base, const char *leaf) +{ + static char buffer[PATH_MAX]; + snprintf(buffer, PATH_MAX, "%s/%s", base, leaf); + return buffer; +} + +/* Input device opening */ +static void +fb_open_input_devices(void) +{ + DIR *dir; + fb_input_dev *d; + struct dirent *de; + const char *basepath = option_fb_input_devpath ? option_fb_input_devpath : "/dev/input"; + + dir = opendir(basepath); + + if (dir == NULL) + return; + + while ((de = readdir(dir)) != NULL) { + if (fnmatch(option_fb_input_glob ? option_fb_input_glob : "event*", + de->d_name, 0) == 0) { + char *cc = fconcat(basepath, de->d_name); + int fd = open(cc, O_RDONLY | O_NONBLOCK); + if (fd >= 0) { + d = calloc(1, sizeof(fb_input_dev)); + d->next = inputdevs; + inputdevs = d; + d->fd = fd; + } + } + } + + closedir(dir); +} + +/* -------------------------------------------------------------------- */ +/* console switching */ + + +static void +fb_switch_signal(int signal) +{ + if (signal == SIGUSR1) { + /* release */ + fb_switch_state = FB_REL_REQ; + } + if (signal == SIGUSR2) { + /* acquisition */ + fb_switch_state = FB_ACQ_REQ; + } +} + +static int +fb_switch_init(void) +{ + struct sigaction act,old; + + memset(&act,0,sizeof(act)); + act.sa_handler = fb_switch_signal; + sigemptyset(&act.sa_mask); + sigaction(SIGUSR1,&act,&old); + sigaction(SIGUSR2,&act,&old); + + if (-1 == ioctl(tty,VT_GETMODE, &vt_mode)) { + perror("ioctl VT_GETMODE"); + exit(1); + } + vt_mode.mode = VT_PROCESS; + vt_mode.waitv = 0; + vt_mode.relsig = SIGUSR1; + vt_mode.acqsig = SIGUSR2; + + if (-1 == ioctl(tty,VT_SETMODE, &vt_mode)) { + perror("ioctl VT_SETMODE"); + exit(1); + } + return 0; +} + +/* -------------------------------------------------------------------- */ +/* initialisation & cleanup */ + +static void +fb_memset (void *addr, int c, size_t len) +{ +#if 1 /* defined(__powerpc__) */ + unsigned int i, *p; + + i = (c & 0xff) << 8; + i |= i << 16; + len >>= 2; + for (p = addr; len--; p++) + *p = i; +#else + memset(addr, c, len); +#endif +} + +static int +fb_setmode(const char *name, int bpp) +{ + FILE *fp; + char line[80],label[32],value[16]; + int geometry=0, timings=0; + + /* load current values */ + if (ioctl(fb,FBIOGET_VSCREENINFO,&fb_var) == -1) { + perror("ioctl FBIOGET_VSCREENINFO"); + exit(1); + } + + if (name == NULL) + return -1; + if ((fp = fopen("/etc/fb.modes","r")) == NULL) + return -1; + while (NULL != fgets(line,79,fp)) { + if (1 == sscanf(line, "mode \"%31[^\"]\"",label) && + 0 == strcmp(label,name)) { + /* fill in new values */ + fb_var.sync = 0; + fb_var.vmode = 0; + while (NULL != fgets(line,79,fp) && + NULL == strstr(line,"endmode")) { + if (5 == sscanf(line," geometry %d %d %d %d %d", + &fb_var.xres,&fb_var.yres, + &fb_var.xres_virtual,&fb_var.yres_virtual, + &fb_var.bits_per_pixel)) + geometry = 1; + if (7 == sscanf(line," timings %d %d %d %d %d %d %d", + &fb_var.pixclock, + &fb_var.left_margin, &fb_var.right_margin, + &fb_var.upper_margin, &fb_var.lower_margin, + &fb_var.hsync_len, &fb_var.vsync_len)) + timings = 1; + if (1 == sscanf(line, " hsync %15s",value) && + 0 == strcasecmp(value,"high")) + fb_var.sync |= FB_SYNC_HOR_HIGH_ACT; + if (1 == sscanf(line, " vsync %15s",value) && + 0 == strcasecmp(value,"high")) + fb_var.sync |= FB_SYNC_VERT_HIGH_ACT; + if (1 == sscanf(line, " csync %15s",value) && + 0 == strcasecmp(value,"high")) + fb_var.sync |= FB_SYNC_COMP_HIGH_ACT; + if (1 == sscanf(line, " extsync %15s",value) && + 0 == strcasecmp(value,"true")) + fb_var.sync |= FB_SYNC_EXT; + if (1 == sscanf(line, " laced %15s",value) && + 0 == strcasecmp(value,"true")) + fb_var.vmode |= FB_VMODE_INTERLACED; + if (1 == sscanf(line, " double %15s",value) && + 0 == strcasecmp(value,"true")) + fb_var.vmode |= FB_VMODE_DOUBLE; + } + /* ok ? */ + if (!geometry || !timings) + return -1; + + if (bpp != 0) + fb_var.bits_per_pixel = bpp; + + /* set */ + fb_var.xoffset = 0; + fb_var.yoffset = 0; + if (-1 == ioctl(fb,FBIOPUT_VSCREENINFO,&fb_var)) + perror("ioctl FBIOPUT_VSCREENINFO"); + /* look what we have now ... */ + if (-1 == ioctl(fb,FBIOGET_VSCREENINFO,&fb_var)) { + perror("ioctl FBIOGET_VSCREENINFO"); + exit(1); + } + return 0; + } + } + return -1; +} + +static void +fb_setvt(int vtno) +{ + struct vt_stat vts; + char vtname[12]; + + if (vtno < 0) { + if (-1 == ioctl(tty,VT_OPENQRY, &vtno) || vtno == -1) { + perror("ioctl VT_OPENQRY"); + exit(1); + } + } + + vtno &= 0xff; + sprintf(vtname, devices->ttynr, vtno); + chown(vtname, getuid(), getgid()); + if (-1 == access(vtname, R_OK | W_OK)) { + fprintf(stderr,"access %s: %s\n",vtname,strerror(errno)); + exit(1); + } + /* switch (fork()) { + case 0: + break; + case -1: + perror("fork"); + exit(1); + default: + exit(0); + } + close(tty); + close(0); + close(1); + close(2); + setsid(); + open(vtname,O_RDWR); + dup(0); + dup(0); +*/ + tty = open(vtname,O_RDWR); + if (-1 == ioctl(tty,VT_GETSTATE, &vts)) { + perror("ioctl VT_GETSTATE"); + exit(1); + } + orig_vt_no = vts.v_active; + if (-1 == ioctl(tty,VT_ACTIVATE, vtno)) { + perror("ioctl VT_ACTIVATE"); + exit(1); + } + if (-1 == ioctl(tty,VT_WAITACTIVE, vtno)) { + perror("ioctl VT_WAITACTIVE"); + exit(1); + } +} + +/* Hmm. radeonfb needs this. matroxfb doesn't. */ +static int +fb_activate_current(int tty) +{ + struct vt_stat vts; + + if (-1 == ioctl(tty,VT_GETSTATE, &vts)) { + perror("ioctl VT_GETSTATE"); + return -1; + } + if (-1 == ioctl(tty,VT_ACTIVATE, vts.v_active)) { + perror("ioctl VT_ACTIVATE"); + return -1; + } + if (-1 == ioctl(tty,VT_WAITACTIVE, vts.v_active)) { + perror("ioctl VT_WAITACTIVE"); + return -1; + } + return 0; +} + +static void +fb_cleanup(void) +{ + /* restore console */ + if (-1 == ioctl(fb,FBIOPUT_VSCREENINFO,&fb_ovar)) + perror("ioctl FBIOPUT_VSCREENINFO"); + if (-1 == ioctl(fb,FBIOGET_FSCREENINFO,&fb_fix)) + perror("ioctl FBIOGET_FSCREENINFO"); + if (fb_ovar.bits_per_pixel == 8 || + fb_fix.visual == FB_VISUAL_DIRECTCOLOR) { + if (-1 == ioctl(fb,FBIOPUTCMAP,&ocmap)) + perror("ioctl FBIOPUTCMAP"); + } + close(fb); + + if (-1 == ioctl(tty,KDSETMODE, kd_mode)) + perror("ioctl KDSETMODE"); + if (-1 == ioctl(tty,VT_SETMODE, &vt_omode)) + perror("ioctl VT_SETMODE"); + if (orig_vt_no && -1 == ioctl(tty, VT_ACTIVATE, orig_vt_no)) + perror("ioctl VT_ACTIVATE"); + if (orig_vt_no && -1 == ioctl(tty, VT_WAITACTIVE, orig_vt_no)) + perror("ioctl VT_WAITACTIVE"); + tcsetattr(tty, TCSANOW, &term); + close(tty); +} + +static int +fb_init(const char *device, const char *mode, int bpp, int vt) +{ + char fbdev[16]; + struct vt_stat vts; + long pm = ~(sysconf(_SC_PAGESIZE) - 1); + + dev_init(); + tty = 0; + if (vt != 0) + fb_setvt(vt); + + if (-1 == ioctl(tty,VT_GETSTATE, &vts)) { + fprintf(stderr,"ioctl VT_GETSTATE: %s (not a linux console?)\n", + strerror(errno)); + exit(1); + } + + if (device == NULL) { + device = getenv("FRAMEBUFFER"); + if (device == NULL) { + struct fb_con2fbmap c2m; + if (-1 == (fb = open(devices->fb0,O_RDWR /* O_WRONLY */,0))) { + fprintf(stderr,"open %s: %s\n",devices->fb0,strerror(errno)); + exit(1); + } + c2m.console = vts.v_active; + if (-1 == ioctl(fb, FBIOGET_CON2FBMAP, &c2m)) { + perror("ioctl FBIOGET_CON2FBMAP"); + exit(1); + } + close(fb); + fprintf(stderr,"map: vt%02d => fb%d\n", + c2m.console,c2m.framebuffer); + sprintf(fbdev,devices->fbnr,c2m.framebuffer); + device = fbdev; + } + } + + /* get current settings (which we have to restore) */ + if (-1 == (fb = open(device,O_RDWR /* O_WRONLY */))) { + fprintf(stderr,"open %s: %s\n",device,strerror(errno)); + exit(1); + } + if (-1 == ioctl(fb,FBIOGET_VSCREENINFO,&fb_ovar)) { + perror("ioctl FBIOGET_VSCREENINFO"); + exit(1); + } + if (-1 == ioctl(fb,FBIOGET_FSCREENINFO,&fb_fix)) { + perror("ioctl FBIOGET_FSCREENINFO"); + exit(1); + } + if (fb_ovar.bits_per_pixel == 8 || + fb_fix.visual == FB_VISUAL_DIRECTCOLOR) { + if (-1 == ioctl(fb,FBIOGETCMAP,&ocmap)) { + perror("ioctl FBIOGETCMAP"); + exit(1); + } + } + if (-1 == ioctl(tty,KDGETMODE, &kd_mode)) { + perror("ioctl KDGETMODE"); + exit(1); + } + if (-1 == ioctl(tty,VT_GETMODE, &vt_omode)) { + perror("ioctl VT_GETMODE"); + exit(1); + } + tcgetattr(tty, &term); + + /* switch mode */ + fb_setmode(mode, bpp); + + /* checks & initialisation */ + if (-1 == ioctl(fb,FBIOGET_FSCREENINFO,&fb_fix)) { + perror("ioctl FBIOGET_FSCREENINFO"); + exit(1); + } + if (fb_fix.type != FB_TYPE_PACKED_PIXELS) { + fprintf(stderr,"can handle only packed pixel frame buffers\n"); + goto err; + } + + fb_mem_offset = (unsigned long)(fb_fix.smem_start) & (~pm); + fb_mem = mmap(NULL,fb_fix.smem_len+fb_mem_offset, + PROT_READ|PROT_WRITE,MAP_SHARED,fb,0); + if (-1L == (long)fb_mem) { + perror("mmap"); + goto err; + } + /* move viewport to upper left corner */ + if (fb_var.xoffset != 0 || fb_var.yoffset != 0) { + fb_var.xoffset = 0; + fb_var.yoffset = 0; + if (-1 == ioctl(fb,FBIOPAN_DISPLAY,&fb_var)) { + perror("ioctl FBIOPAN_DISPLAY"); + goto err; + } + } + if (-1 == ioctl(tty,KDSETMODE, KD_GRAPHICS)) { + perror("ioctl KDSETMODE"); + goto err; + } + fb_activate_current(tty); + + /* cls */ + fb_memset(fb_mem + fb_mem_offset, 0, fb_fix.smem_len); + return fb; + +err: + fb_cleanup(); + exit(1); +} + + +/* -------------------------------------------------------------------- */ +/* handle fatal errors */ + +static jmp_buf fb_fatal_cleanup; + +static void +fb_catch_exit_signal(int signal) +{ + 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 (0 == (termsig = sigsetjmp(fb_fatal_cleanup,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; + + fb_init(option_fb_device, option_fb_mode ? option_fb_mode : "800x600-70", 16, 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(); +} + +void fb_os_input(struct gui_window *g) +{ + ssize_t amt; + struct input_event event; + fb_input_dev *d; + + 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) + return; + + switch (event.code) { + case KEY_J: + fb_window_scroll(g, 0, 100); + break; + + case KEY_K: + fb_window_scroll(g, 0, -100); + break; + + case KEY_Q: + browser_window_destroy(g->bw); + break; + + case KEY_D: + list_schedule(); + break; + + case KEY_UP: + fb_cursor_move(framebuffer, 0, -1); + break; + + case KEY_DOWN: + fb_cursor_move(framebuffer, 0, 1); + break; + + case KEY_LEFT: + fb_cursor_move(framebuffer, -1, 0); + break; + + case KEY_RIGHT: + fb_cursor_move(framebuffer, 1, 0); + break; + case BTN_LEFT: + fb_cursor_click(framebuffer, + g, + BROWSER_MOUSE_CLICK_1); + break; + } + } else if (event.type == EV_REL) { + switch (event.code) { + case 0: + fb_cursor_move(framebuffer, + event.value, + 0); + break; + + case 1: + fb_cursor_move(framebuffer, + 0, + event.value); + break; + + case 8: + fb_window_scroll(g, 0, event.value * -100); + break; + } + } + + } + } +} + +void +fb_os_option_override(void) +{ +} + + +/* + * Local Variables: + * c-basic-offset:8 + * End: + */ + |