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mpv/libvo/vo_fbdev.c

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/*
* video driver for framebuffer device
* copyright (C) 2001 Szabolcs Berecz <szabi@inf.elte.hu>
*
* Some idea and code borrowed from Chris Lawrence's ppmtofb-0.27
* Some fixes and small improvements by Joey Parrish <joey@nicewarrior.org>
*
* This file is part of MPlayer.
*
* MPlayer 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; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <ctype.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
#include <sys/kd.h>
#include <linux/fb.h>
#include <libavutil/common.h>
#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"
#include "fastmemcpy.h"
#include "sub/sub.h"
#include "geometry.h"
#include "aspect.h"
#include "mp_msg.h"
static const vo_info_t info = {
"Framebuffer Device",
"fbdev",
"Szabolcs Berecz <szabi@inf.elte.hu>",
""
};
LIBVO_EXTERN(fbdev)
static signed int pre_init_err = -2;
/******************************
* fb.modes support *
******************************/
static range_t *monitor_hfreq = NULL;
static range_t *monitor_vfreq = NULL;
static range_t *monitor_dotclock = NULL;
typedef struct {
char *name;
uint32_t xres, yres, vxres, vyres, depth;
uint32_t pixclock, left, right, upper, lower, hslen, vslen;
uint32_t sync;
uint32_t vmode;
} fb_mode_t;
#define MAX_NR_TOKEN 16
#define MAX_LINE_LEN 1000
#define RET_EOF -1
#define RET_EOL -2
static int validate_mode(fb_mode_t *m)
{
if (!m->xres) {
mp_msg(MSGT_VO, MSGL_V, "needs geometry ");
return 0;
}
if (!m->pixclock) {
mp_msg(MSGT_VO, MSGL_V, "needs timings ");
return 0;
}
return 1;
}
static FILE *fp;
static int line_num = 0;
static char *line;
static char *token[MAX_NR_TOKEN];
static int get_token(int num)
{
static int read_nextline = 1;
static int line_pos;
int i;
char c;
if (num >= MAX_NR_TOKEN) {
mp_msg(MSGT_VO, MSGL_V, "get_token(): max >= MAX_NR_TOKEN!\n");
goto out_eof;
}
if (read_nextline) {
if (!fgets(line, MAX_LINE_LEN, fp))
goto out_eof;
line_pos = 0;
++line_num;
read_nextline = 0;
}
for (i = 0; i < num; i++) {
while (isspace(line[line_pos]))
++line_pos;
if (line[line_pos] == '\0' || line[line_pos] == '#') {
read_nextline = 1;
goto out_eol;
}
token[i] = line + line_pos;
c = line[line_pos];
if (c == '"' || c == '\'') {
token[i]++;
while (line[++line_pos] != c && line[line_pos])
/* NOTHING */;
if (!line[line_pos])
goto out_eol;
line[line_pos] = ' ';
} else {
for (/* NOTHING */; !isspace(line[line_pos]) &&
line[line_pos]; line_pos++)
/* NOTHING */;
}
if (!line[line_pos]) {
read_nextline = 1;
if (i == num - 1)
goto out_ok;
goto out_eol;
}
line[line_pos++] = '\0';
}
out_ok:
return i;
out_eof:
return RET_EOF;
out_eol:
return RET_EOL;
}
static fb_mode_t *fb_modes = NULL;
static int nr_modes = 0;
static int parse_fbmode_cfg(char *cfgfile)
{
#define CHECK_IN_MODE_DEF\
if (!in_mode_def) {\
mp_msg(MSGT_VO, MSGL_V, "'needs 'mode' first");\
goto err_out_print_linenum;\
}
fb_mode_t *mode = NULL;
char *endptr; // strtoul()...
int in_mode_def = 0;
int tmp, i;
/* If called more than once, reuse parsed data */
if (nr_modes)
return nr_modes;
mp_msg(MSGT_VO, MSGL_V, "Reading %s: ", cfgfile);
if ((fp = fopen(cfgfile, "r")) == NULL) {
mp_msg(MSGT_VO, MSGL_V, "can't open '%s': %s\n", cfgfile, strerror(errno));
return -1;
}
if ((line = malloc(MAX_LINE_LEN + 1)) == NULL) {
mp_msg(MSGT_VO, MSGL_V, "can't get memory for 'line': %s\n", strerror(errno));
return -2;
}
/*
* check if the cfgfile starts with 'mode'
*/
while ((tmp = get_token(1)) == RET_EOL)
/* NOTHING */;
if (tmp == RET_EOF)
goto out;
if (!strcmp(token[0], "mode"))
goto loop_enter;
goto err_out_parse_error;
while ((tmp = get_token(1)) != RET_EOF) {
if (tmp == RET_EOL)
continue;
if (!strcmp(token[0], "mode")) {
if (in_mode_def) {
mp_msg(MSGT_VO, MSGL_V, "'endmode' required");
goto err_out_print_linenum;
}
if (!validate_mode(mode))
goto err_out_not_valid;
loop_enter:
if (!(fb_modes =
realloc(fb_modes, sizeof(fb_mode_t) * (nr_modes + 1)))) {
mp_msg(MSGT_VO, MSGL_V, "can't realloc 'fb_modes' (nr_modes = %d):"
" %s\n", nr_modes, strerror(errno));
goto err_out;
}
mode = fb_modes + nr_modes;
++nr_modes;
memset(mode, 0, sizeof(fb_mode_t));
if (get_token(1) < 0)
goto err_out_parse_error;
for (i = 0; i < nr_modes - 1; i++) {
if (!strcmp(token[0], fb_modes[i].name)) {
mp_msg(MSGT_VO, MSGL_V, "mode name '%s' isn't unique", token[0]);
goto err_out_print_linenum;
}
}
if (!(mode->name = strdup(token[0]))) {
mp_msg(MSGT_VO, MSGL_V, "can't strdup -> 'name': %s\n", strerror(errno));
goto err_out;
}
in_mode_def = 1;
} else if (!strcmp(token[0], "geometry")) {
CHECK_IN_MODE_DEF;
if (get_token(5) < 0)
goto err_out_parse_error;
mode->xres = strtoul(token[0], &endptr, 0);
if (*endptr)
goto err_out_parse_error;
mode->yres = strtoul(token[1], &endptr, 0);
if (*endptr)
goto err_out_parse_error;
mode->vxres = strtoul(token[2], &endptr, 0);
if (*endptr)
goto err_out_parse_error;
mode->vyres = strtoul(token[3], &endptr, 0);
if (*endptr)
goto err_out_parse_error;
mode->depth = strtoul(token[4], &endptr, 0);
if (*endptr)
goto err_out_parse_error;
} else if (!strcmp(token[0], "timings")) {
CHECK_IN_MODE_DEF;
if (get_token(7) < 0)
goto err_out_parse_error;
mode->pixclock = strtoul(token[0], &endptr, 0);
if (*endptr)
goto err_out_parse_error;
mode->left = strtoul(token[1], &endptr, 0);
if (*endptr)
goto err_out_parse_error;
mode->right = strtoul(token[2], &endptr, 0);
if (*endptr)
goto err_out_parse_error;
mode->upper = strtoul(token[3], &endptr, 0);
if (*endptr)
goto err_out_parse_error;
mode->lower = strtoul(token[4], &endptr, 0);
if (*endptr)
goto err_out_parse_error;
mode->hslen = strtoul(token[5], &endptr, 0);
if (*endptr)
goto err_out_parse_error;
mode->vslen = strtoul(token[6], &endptr, 0);
if (*endptr)
goto err_out_parse_error;
} else if (!strcmp(token[0], "endmode")) {
CHECK_IN_MODE_DEF;
in_mode_def = 0;
} else if (!strcmp(token[0], "accel")) {
CHECK_IN_MODE_DEF;
if (get_token(1) < 0)
goto err_out_parse_error;
/*
* it's only used for text acceleration
* so we just ignore it.
*/
} else if (!strcmp(token[0], "hsync")) {
CHECK_IN_MODE_DEF;
if (get_token(1) < 0)
goto err_out_parse_error;
if (!strcmp(token[0], "low"))
mode->sync &= ~FB_SYNC_HOR_HIGH_ACT;
else if (!strcmp(token[0], "high"))
mode->sync |= FB_SYNC_HOR_HIGH_ACT;
else
goto err_out_parse_error;
} else if (!strcmp(token[0], "vsync")) {
CHECK_IN_MODE_DEF;
if (get_token(1) < 0)
goto err_out_parse_error;
if (!strcmp(token[0], "low"))
mode->sync &= ~FB_SYNC_VERT_HIGH_ACT;
else if (!strcmp(token[0], "high"))
mode->sync |= FB_SYNC_VERT_HIGH_ACT;
else
goto err_out_parse_error;
} else if (!strcmp(token[0], "csync")) {
CHECK_IN_MODE_DEF;
if (get_token(1) < 0)
goto err_out_parse_error;
if (!strcmp(token[0], "low"))
mode->sync &= ~FB_SYNC_COMP_HIGH_ACT;
else if (!strcmp(token[0], "high"))
mode->sync |= FB_SYNC_COMP_HIGH_ACT;
else
goto err_out_parse_error;
} else if (!strcmp(token[0], "extsync")) {
CHECK_IN_MODE_DEF;
if (get_token(1) < 0)
goto err_out_parse_error;
if (!strcmp(token[0], "false"))
mode->sync &= ~FB_SYNC_EXT;
else if (!strcmp(token[0], "true"))
mode->sync |= FB_SYNC_EXT;
else
goto err_out_parse_error;
} else if (!strcmp(token[0], "laced")) {
CHECK_IN_MODE_DEF;
if (get_token(1) < 0)
goto err_out_parse_error;
if (!strcmp(token[0], "false"))
mode->vmode = FB_VMODE_NONINTERLACED;
else if (!strcmp(token[0], "true"))
mode->vmode = FB_VMODE_INTERLACED;
else
goto err_out_parse_error;
} else if (!strcmp(token[0], "double")) {
CHECK_IN_MODE_DEF;
if (get_token(1) < 0)
goto err_out_parse_error;
if (!strcmp(token[0], "false"))
;
else if (!strcmp(token[0], "true"))
mode->vmode = FB_VMODE_DOUBLE;
else
goto err_out_parse_error;
} else
goto err_out_parse_error;
}
if (!validate_mode(mode))
goto err_out_not_valid;
out:
mp_msg(MSGT_VO, MSGL_V, "%d modes\n", nr_modes);
free(line);
fclose(fp);
return nr_modes;
err_out_parse_error:
mp_msg(MSGT_VO, MSGL_V, "parse error");
err_out_print_linenum:
mp_msg(MSGT_VO, MSGL_V, " at line %d\n", line_num);
err_out:
free(fb_modes);
fb_modes = NULL;
nr_modes = 0;
free(line);
free(fp);
return -2;
err_out_not_valid:
mp_msg(MSGT_VO, MSGL_V, "previous mode is not correct");
goto err_out_print_linenum;
}
static fb_mode_t *find_mode_by_name(char *name)
{
int i;
for (i = 0; i < nr_modes; i++)
if (!strcmp(name, fb_modes[i].name))
return fb_modes + i;
return NULL;
}
static float dcf(fb_mode_t *m) //driving clock frequency
{
return 1e12f / m->pixclock;
}
static float hsf(fb_mode_t *m) //horizontal scan frequency
{
int htotal = m->left + m->xres + m->right + m->hslen;
return dcf(m) / htotal;
}
static float vsf(fb_mode_t *m) //vertical scan frequency
{
int vtotal = m->upper + m->yres + m->lower + m->vslen;
return hsf(m) / vtotal;
}
static int mode_works(fb_mode_t *m, range_t *hfreq, range_t *vfreq,
range_t *dotclock)
{
float h = hsf(m);
float v = vsf(m);
float d = dcf(m);
int ret = 1;
mp_msg(MSGT_VO, MSGL_DBG2, "mode %dx%d:", m->xres, m->yres);
if (!in_range(hfreq, h)) {
ret = 0;
mp_msg(MSGT_VO, MSGL_DBG2, " hsync out of range.");
}
if (!in_range(vfreq, v)) {
ret = 0;
mp_msg(MSGT_VO, MSGL_DBG2, " vsync out of range.");
}
if (!in_range(dotclock, d)) {
ret = 0;
mp_msg(MSGT_VO, MSGL_DBG2, " dotclock out of range.");
}
if (ret)
mp_msg(MSGT_VO, MSGL_DBG2, " hsync, vsync, dotclock ok.\n");
else
mp_msg(MSGT_VO, MSGL_DBG2, "\n");
return ret;
}
static fb_mode_t *find_best_mode(int xres, int yres, range_t *hfreq,
range_t *vfreq, range_t *dotclock)
{
int i;
fb_mode_t *best = fb_modes;
fb_mode_t *curr;
mp_msg(MSGT_VO, MSGL_DBG2, "Searching for first working mode\n");
for (i = 0; i < nr_modes; i++, best++)
if (mode_works(best, hfreq, vfreq, dotclock))
break;
if (i == nr_modes)
return NULL;
if (i == nr_modes - 1)
return best;
mp_msg(MSGT_VO, MSGL_DBG2, "First working mode: %dx%d\n", best->xres, best->yres);
mp_msg(MSGT_VO, MSGL_DBG2, "Searching for better modes\n");
for (curr = best + 1; i < nr_modes - 1; i++, curr++) {
if (!mode_works(curr, hfreq, vfreq, dotclock))
continue;
if (best->xres < xres || best->yres < yres) {
if (curr->xres > best->xres || curr->yres > best->yres) {
mp_msg(MSGT_VO, MSGL_DBG2, "better than %dx%d, which is too small.\n",
best->xres, best->yres);
best = curr;
} else
mp_msg(MSGT_VO, MSGL_DBG2, "too small.\n");
} else if (curr->xres == best->xres && curr->yres == best->yres &&
vsf(curr) > vsf(best)) {
mp_msg(MSGT_VO, MSGL_DBG2, "faster screen refresh.\n");
best = curr;
} else if ((curr->xres <= best->xres && curr->yres <= best->yres) &&
(curr->xres >= xres && curr->yres >= yres)) {
mp_msg(MSGT_VO, MSGL_DBG2, "better than %dx%d, which is too large.\n",
best->xres, best->yres);
best = curr;
} else {
if (curr->xres < xres || curr->yres < yres)
mp_msg(MSGT_VO, MSGL_DBG2, "too small.\n");
else if (curr->xres > best->xres || curr->yres > best->yres)
mp_msg(MSGT_VO, MSGL_DBG2, "too large.\n");
else
mp_msg(MSGT_VO, MSGL_DBG2, "it's worse, don't know why.\n");
}
}
return best;
}
static void set_bpp(struct fb_var_screeninfo *p, int bpp, int rgb)
{
p->bits_per_pixel = FFALIGN(bpp, 2);
p->red.msb_right = p->green.msb_right = p->blue.msb_right = p->transp.msb_right = 0;
p->transp.offset = p->transp.length = 0;
p->blue.offset = 0;
switch (bpp) {
case 32:
p->transp.offset = 24;
p->transp.length = 8;
case 24:
p->red.offset = 16;
p->red.length = 8;
p->green.offset = 8;
p->green.length = 8;
p->blue.length = 8;
break;
case 16:
p->red.offset = 11;
p->green.length = 6;
p->red.length = 5;
p->green.offset = 5;
p->blue.length = 5;
break;
case 15:
p->red.offset = 10;
p->green.length = 5;
p->red.length = 5;
p->green.offset = 5;
p->blue.length = 5;
break;
case 12:
p->red.offset = 8;
p->green.length = 4;
p->red.length = 4;
p->green.offset = 4;
p->blue.length = 4;
break;
}
if (rgb) {
p->blue.offset = p->red.offset;
p->red.offset = 0;
}
}
static void fb_mode2fb_vinfo(fb_mode_t *m, struct fb_var_screeninfo *v, int rgb)
{
v->xres = m->xres;
v->yres = m->yres;
v->xres_virtual = m->vxres;
v->yres_virtual = m->vyres;
set_bpp(v, m->depth, rgb);
v->pixclock = m->pixclock;
v->left_margin = m->left;
v->right_margin = m->right;
v->upper_margin = m->upper;
v->lower_margin = m->lower;
v->hsync_len = m->hslen;
v->vsync_len = m->vslen;
v->sync = m->sync;
v->vmode = m->vmode;
}
/******************************
* vo_fbdev *
******************************/
/* command line/config file options */
static char *fb_dev_name = NULL;
char *fb_mode_cfgfile = NULL;
char *fb_mode_name = NULL;
static fb_mode_t *fb_mode = NULL;
/* vo_fbdev related variables */
static int fb_dev_fd;
static int fb_tty_fd = -1;
static size_t fb_size;
static uint8_t *frame_buffer;
static uint8_t *center;
static struct fb_fix_screeninfo fb_finfo;
static struct fb_var_screeninfo fb_orig_vinfo;
static struct fb_var_screeninfo fb_vinfo;
static unsigned short fb_ored[256], fb_ogreen[256], fb_oblue[256];
static struct fb_cmap fb_oldcmap = { 0, 256, fb_ored, fb_ogreen, fb_oblue };
static int fb_cmap_changed = 0;
static int fb_rgb;
static int fb_pixel_size; // 32: 4 24: 3 16: 2 15: 2
static int fb_bpp; // 32: 32 24: 24 16: 16 15: 15
static int fb_bpp_we_want; // 32: 32 24: 24 16: 16 15: 15
static int fb_line_len;
static int fb_xres;
static int fb_yres;
static int fb_page;
static void (*draw_alpha_p)(int w, int h, unsigned char *src,
unsigned char *srca, int stride,
unsigned char *dst, int dstride);
static int in_width;
static int in_height;
static int out_width;
static int out_height;
static int first_row;
static int last_row;
static uint32_t pixel_format;
static int fs;
/*
* Note: this function is completely cut'n'pasted from
* Chris Lawrence's code.
* (modified a bit to fit in my code...)
*/
static struct fb_cmap *make_directcolor_cmap(struct fb_var_screeninfo *var)
{
/* Hopefully any DIRECTCOLOR device will have a big enough palette
* to handle mapping the full color depth.
* e.g. 8 bpp -> 256 entry palette
*
* We could handle some sort of gamma here
*/
int i, cols, rcols, gcols, bcols;
uint16_t *red, *green, *blue;
struct fb_cmap *cmap;
rcols = 1 << var->red.length;
gcols = 1 << var->green.length;
bcols = 1 << var->blue.length;
/* Make our palette the length of the deepest color */
cols = FFMAX3(rcols, gcols, bcols);
red = malloc(cols * sizeof(red[0]));
if (!red) {
mp_msg(MSGT_VO, MSGL_V, "Can't allocate red palette with %d entries.\n", cols);
return NULL;
}
for (i = 0; i < rcols; i++)
red[i] = (65535 / (rcols - 1)) * i;
green = malloc(cols * sizeof(green[0]));
if (!green) {
mp_msg(MSGT_VO, MSGL_V, "Can't allocate green palette with %d entries.\n", cols);
free(red);
return NULL;
}
for (i = 0; i < gcols; i++)
green[i] = (65535 / (gcols - 1)) * i;
blue = malloc(cols * sizeof(blue[0]));
if (!blue) {
mp_msg(MSGT_VO, MSGL_V, "Can't allocate blue palette with %d entries.\n", cols);
free(red);
free(green);
return NULL;
}
for (i = 0; i < bcols; i++)
blue[i] = (65535 / (bcols - 1)) * i;
cmap = malloc(sizeof(struct fb_cmap));
if (!cmap) {
mp_msg(MSGT_VO, MSGL_V, "Can't allocate color map\n");
free(red);
free(green);
free(blue);
return NULL;
}
cmap->start = 0;
cmap->transp = 0;
cmap->len = cols;
cmap->red = red;
cmap->blue = blue;
cmap->green = green;
cmap->transp = NULL;
return cmap;
}
static int fb_preinit(int reset)
{
static int fb_preinit_done = 0;
static int fb_works = 0;
if (reset) {
fb_preinit_done = 0;
return 0;
}
if (fb_preinit_done)
return fb_works;
fb_dev_fd = fb_tty_fd = -1;
if (!fb_dev_name && !(fb_dev_name = getenv("FRAMEBUFFER")))
fb_dev_name = strdup("/dev/fb0");
mp_msg(MSGT_VO, MSGL_V, "using %s\n", fb_dev_name);
if ((fb_dev_fd = open(fb_dev_name, O_RDWR)) == -1) {
mp_msg(MSGT_VO, MSGL_ERR, "Can't open %s: %s\n", fb_dev_name, strerror(errno));
goto err_out;
}
if (ioctl(fb_dev_fd, FBIOGET_VSCREENINFO, &fb_vinfo)) {
mp_msg(MSGT_VO, MSGL_ERR, "Can't get VSCREENINFO: %s\n", strerror(errno));
goto err_out;
}
fb_orig_vinfo = fb_vinfo;
if ((fb_tty_fd = open("/dev/tty", O_RDWR)) < 0) {
mp_msg(MSGT_VO, MSGL_ERR, "notice: Can't open /dev/tty: %s\n", strerror(errno));
}
fb_rgb = !fb_vinfo.red.offset;
fb_bpp = fb_vinfo.bits_per_pixel;
if (fb_bpp == 16)
fb_bpp = fb_vinfo.red.length + fb_vinfo.green.length + fb_vinfo.blue.length;
if (fb_bpp == 8 && !vo_dbpp) {
mp_msg(MSGT_VO, MSGL_ERR, "8 bpp output is not supported.\n");
goto err_out;
}
if (vo_dbpp) {
if (vo_dbpp != 12 && vo_dbpp != 15 && vo_dbpp != 16
&& vo_dbpp != 24 && vo_dbpp != 32) {
mp_msg(MSGT_VO, MSGL_ERR, "can't switch to %d bpp\n", vo_dbpp);
goto err_out;
}
fb_bpp = vo_dbpp;
}
if (!fb_mode_cfgfile)
fb_mode_cfgfile = strdup("/etc/fb.modes");
fb_preinit_done = 1;
fb_works = 1;
return 1;
err_out:
if (fb_tty_fd != -1)
close(fb_tty_fd);
fb_tty_fd = -1;
if (fb_dev_fd != -1)
close(fb_dev_fd);
fb_dev_fd = -1;
fb_preinit_done = 1;
fb_works = 0;
return 0;
}
static void vt_set_textarea(int u, int l)
{
/* how can I determine the font height?
* just use 16 for now
*/
int urow = ((u + 15) / 16) + 1;
int lrow = l / 16;
mp_msg(MSGT_VO, MSGL_DBG2, "vt_set_textarea(%d,%d): %d,%d\n", u, l, urow, lrow);
if (fb_tty_fd >= 0) {
char modestring[100];
snprintf(modestring, sizeof(modestring), "\33[%d;%dr\33[%d;%dH", urow, lrow, lrow, 0);
write(fb_tty_fd, modestring, strlen(modestring));
fsync(fb_tty_fd);
}
}
static int config(uint32_t width, uint32_t height, uint32_t d_width,
uint32_t d_height, uint32_t flags, char *title,
uint32_t format)
{
struct fb_cmap *cmap;
int vm = flags & VOFLAG_MODESWITCHING;
int zoom = flags & VOFLAG_SWSCALE;
fs = flags & VOFLAG_FULLSCREEN;
if (pre_init_err == -2) {
mp_msg(MSGT_VO, MSGL_ERR, "Internal fatal error: config() was called before preinit()\n");
return -1;
}
if (pre_init_err)
return 1;
if (fb_mode_name && !vm) {
mp_msg(MSGT_VO, MSGL_ERR, "-fbmode can only be used with -vm\n");
return 1;
}
if (vm && parse_fbmode_cfg(fb_mode_cfgfile) < 0)
return 1;
if (d_width && (fs || vm)) {
out_width = d_width;
out_height = d_height;
} else {
out_width = width;
out_height = height;
}
in_width = width;
in_height = height;
pixel_format = format;
if (fb_mode_name) {
if (!(fb_mode = find_mode_by_name(fb_mode_name))) {
mp_msg(MSGT_VO, MSGL_ERR, "can't find requested video mode\n");
return 1;
}
fb_mode2fb_vinfo(fb_mode, &fb_vinfo, fb_rgb);
} else if (vm) {
monitor_hfreq = str2range(monitor_hfreq_str);
monitor_vfreq = str2range(monitor_vfreq_str);
monitor_dotclock = str2range(monitor_dotclock_str);
if (!monitor_hfreq || !monitor_vfreq || !monitor_dotclock) {
mp_msg(MSGT_VO, MSGL_ERR, "you have to specify the capabilities of"
" the monitor.\n");
return 1;
}
if (!(fb_mode = find_best_mode(out_width, out_height, monitor_hfreq,
monitor_vfreq, monitor_dotclock))) {
mp_msg(MSGT_VO, MSGL_ERR, "can't find best video mode\n");
return 1;
}
mp_msg(MSGT_VO, MSGL_V, "using mode %dx%d @ %.1fHz\n", fb_mode->xres,
fb_mode->yres, vsf(fb_mode));
fb_mode2fb_vinfo(fb_mode, &fb_vinfo, fb_rgb);
}
fb_bpp_we_want = fb_bpp;
set_bpp(&fb_vinfo, fb_bpp, fb_rgb);
fb_vinfo.xres_virtual = fb_vinfo.xres;
fb_vinfo.yres_virtual = fb_vinfo.yres;
fb_page = 0;
if (vo_doublebuffering) {
fb_vinfo.yres_virtual <<= 1;
fb_vinfo.yoffset = 0;
fb_page = 1; // start writing into the page we don't display
}
if (fb_tty_fd >= 0 && ioctl(fb_tty_fd, KDSETMODE, KD_GRAPHICS) < 0) {
mp_msg(MSGT_VO, MSGL_V, "Can't set graphics mode: %s\n", strerror(errno));
close(fb_tty_fd);
fb_tty_fd = -1;
}
if (ioctl(fb_dev_fd, FBIOPUT_VSCREENINFO, &fb_vinfo))
// Intel drivers fail if we request a transparency channel
fb_vinfo.transp.length = fb_vinfo.transp.offset = 0;
if (ioctl(fb_dev_fd, FBIOPUT_VSCREENINFO, &fb_vinfo)) {
mp_msg(MSGT_VO, MSGL_ERR, "Can't put VSCREENINFO: %s\n", strerror(errno));
if (fb_tty_fd >= 0 && ioctl(fb_tty_fd, KDSETMODE, KD_TEXT) < 0) {
mp_msg(MSGT_VO, MSGL_ERR, "Can't restore text mode: %s\n", strerror(errno));
}
return 1;
}
fb_pixel_size = fb_vinfo.bits_per_pixel / 8;
fb_bpp = fb_vinfo.bits_per_pixel;
if (fb_bpp == 16)
fb_bpp = fb_vinfo.red.length + fb_vinfo.green.length + fb_vinfo.blue.length;
if (fb_bpp_we_want != fb_bpp)
mp_msg(MSGT_VO, MSGL_WARN, "requested %d bpp, got %d bpp!!!\n",
fb_bpp_we_want, fb_bpp);
switch (fb_bpp) {
case 32:
draw_alpha_p = vo_draw_alpha_rgb32;
break;
case 24:
draw_alpha_p = vo_draw_alpha_rgb24;
break;
case 16:
draw_alpha_p = vo_draw_alpha_rgb16;
break;
case 15:
draw_alpha_p = vo_draw_alpha_rgb15;
break;
case 12:
draw_alpha_p = vo_draw_alpha_rgb12;
break;
default:
return 1;
}
fb_xres = fb_vinfo.xres;
fb_yres = fb_vinfo.yres;
if (vm || fs) {
out_width = fb_xres;
out_height = fb_yres;
}
if (out_width < in_width || out_height < in_height) {
mp_msg(MSGT_VO, MSGL_ERR, "screensize is smaller than video size\n");
return 1;
}
first_row = (out_height - in_height) / 2;
last_row = (out_height + in_height) / 2;
if (ioctl(fb_dev_fd, FBIOGET_FSCREENINFO, &fb_finfo)) {
mp_msg(MSGT_VO, MSGL_ERR, "Can't get FSCREENINFO: %s\n", strerror(errno));
return 1;
}
if (fb_finfo.type != FB_TYPE_PACKED_PIXELS) {
mp_msg(MSGT_VO, MSGL_ERR, "type %d not supported\n", fb_finfo.type);
return 1;
}
switch (fb_finfo.visual) {
case FB_VISUAL_TRUECOLOR:
break;
case FB_VISUAL_DIRECTCOLOR:
mp_msg(MSGT_VO, MSGL_V, "creating cmap for directcolor\n");
if (ioctl(fb_dev_fd, FBIOGETCMAP, &fb_oldcmap)) {
mp_msg(MSGT_VO, MSGL_ERR, "can't get cmap: %s\n",
strerror(errno));
return 1;
}
if (!(cmap = make_directcolor_cmap(&fb_vinfo)))
return 1;
if (ioctl(fb_dev_fd, FBIOPUTCMAP, cmap)) {
mp_msg(MSGT_VO, MSGL_ERR, "can't put cmap: %s\n",
strerror(errno));
return 1;
}
fb_cmap_changed = 1;
free(cmap->red);
free(cmap->green);
free(cmap->blue);
free(cmap);
break;
default:
mp_msg(MSGT_VO, MSGL_ERR, "visual: %d not yet supported\n",
fb_finfo.visual);
return 1;
}
fb_line_len = fb_finfo.line_length;
fb_size = fb_finfo.smem_len;
if (vo_doublebuffering && fb_size < 2 * fb_yres * fb_line_len)
{
mp_msg(MSGT_VO, MSGL_WARN, "framebuffer too small for double-buffering, disabling\n");
vo_doublebuffering = 0;
fb_page = 0;
}
{
int x_offset = 0, y_offset = 0;
geometry(&x_offset, &y_offset, &out_width, &out_height, fb_xres, fb_yres);
frame_buffer = mmap(0, fb_size, PROT_READ | PROT_WRITE,
MAP_SHARED, fb_dev_fd, 0);
if (frame_buffer == (uint8_t *) -1) {
mp_msg(MSGT_VO, MSGL_ERR, "Can't mmap %s: %s\n", fb_dev_name, strerror(errno));
return 1;
}
center = frame_buffer +
( (out_width - in_width) / 2 ) * fb_pixel_size +
( (out_height - in_height) / 2 ) * fb_line_len +
x_offset * fb_pixel_size + y_offset * fb_line_len +
fb_page * fb_yres * fb_line_len;
mp_msg(MSGT_VO, MSGL_DBG2, "frame_buffer @ %p\n", frame_buffer);
mp_msg(MSGT_VO, MSGL_DBG2, "center @ %p\n", center);
mp_msg(MSGT_VO, MSGL_V, "pixel per line: %d\n", fb_line_len / fb_pixel_size);
if (fs || vm) {
int clear_size = fb_line_len * fb_yres;
if (vo_doublebuffering)
clear_size <<= 1;
memset(frame_buffer, 0, clear_size);
}
}
vt_set_textarea(last_row, fb_yres);
return 0;
}
static int query_format(uint32_t format)
{
if (!fb_preinit(0))
return 0;
if ((format & IMGFMT_BGR_MASK) == (fb_rgb ? IMGFMT_RGB : IMGFMT_BGR)) {
int bpp = format & 0xff;
if (bpp == fb_bpp)
return VFCAP_ACCEPT_STRIDE | VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW;
}
return 0;
}
static void draw_alpha(int x0, int y0, int w, int h, unsigned char *src,
unsigned char *srca, int stride)
{
unsigned char *dst;
dst = center + fb_line_len * y0 + fb_pixel_size * x0;
(*draw_alpha_p)(w, h, src, srca, stride, dst, fb_line_len);
}
static int draw_frame(uint8_t *src[])
{
return 1;
}
static int draw_slice(uint8_t *src[], int stride[], int w, int h, int x, int y)
{
uint8_t *d;
d = center + fb_line_len * y + fb_pixel_size * x;
memcpy_pic2(d, src[0], w * fb_pixel_size, h, fb_line_len, stride[0], 1);
return 0;
}
static void check_events(void)
{
}
static void flip_page(void)
{
int next_page = !fb_page;
int page_delta = next_page - fb_page;
if (!vo_doublebuffering)
return;
fb_vinfo.yoffset = fb_page * fb_yres;
ioctl(fb_dev_fd, FBIOPAN_DISPLAY, &fb_vinfo);
center += page_delta * fb_yres * fb_line_len;
fb_page = next_page;
}
static void draw_osd(void)
{
vo_draw_text(in_width, in_height, draw_alpha);
}
static void uninit(void)
{
if (fb_cmap_changed) {
if (ioctl(fb_dev_fd, FBIOPUTCMAP, &fb_oldcmap))
mp_msg(MSGT_VO, MSGL_WARN, "Can't restore original cmap\n");
fb_cmap_changed = 0;
}
if (ioctl(fb_dev_fd, FBIOGET_VSCREENINFO, &fb_vinfo))
mp_msg(MSGT_VO, MSGL_WARN, "ioctl FBIOGET_VSCREENINFO: %s\n", strerror(errno));
fb_orig_vinfo.xoffset = fb_vinfo.xoffset;
fb_orig_vinfo.yoffset = fb_vinfo.yoffset;
if (ioctl(fb_dev_fd, FBIOPUT_VSCREENINFO, &fb_orig_vinfo))
mp_msg(MSGT_VO, MSGL_WARN, "Can't reset original fb_var_screeninfo: %s\n", strerror(errno));
if (fb_tty_fd >= 0) {
if (ioctl(fb_tty_fd, KDSETMODE, KD_TEXT) < 0)
mp_msg(MSGT_VO, MSGL_WARN, "Can't restore text mode: %s\n", strerror(errno));
}
vt_set_textarea(0, fb_orig_vinfo.yres);
close(fb_tty_fd);
close(fb_dev_fd);
if (frame_buffer)
munmap(frame_buffer, fb_size);
frame_buffer = NULL;
fb_preinit(1);
}
static int preinit(const char *vo_subdevice)
{
pre_init_err = 0;
if (vo_subdevice) {
{
free(fb_dev_name);
fb_dev_name = strdup(vo_subdevice);
}
}
if (!pre_init_err)
return pre_init_err = fb_preinit(0) ? 0 : -1;
return -1;
}
static uint32_t get_image(mp_image_t *mpi)
{
if (!IMGFMT_IS_BGR(mpi->imgfmt) ||
IMGFMT_BGR_DEPTH(mpi->imgfmt) != fb_bpp ||
(mpi->type != MP_IMGTYPE_STATIC && mpi->type != MP_IMGTYPE_TEMP) ||
(mpi->flags & MP_IMGFLAG_PLANAR) ||
(mpi->flags & MP_IMGFLAG_YUV) ||
mpi->width != in_width ||
mpi->height != in_height
)
return VO_FALSE;
mpi->planes[0] = center;
mpi->stride[0] = fb_line_len;
mpi->flags |= MP_IMGFLAG_DIRECT;
return VO_TRUE;
}
static int control(uint32_t request, void *data)
{
switch (request) {
case VOCTRL_GET_IMAGE:
return get_image(data);
case VOCTRL_QUERY_FORMAT:
return query_format(*(uint32_t*)data);
}
return VO_NOTIMPL;
}
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