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mpv/libvo/vo_fbdev.c

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/*
* Video driver for Framebuffer device
* by Szabolcs Berecz <szabi@inf.elte.hu>
* (C) 2001
*
* Some idea and code borrowed from Chris Lawrence's ppmtofb-0.27
*/
#define FBDEV "fbdev: "
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <ctype.h>
#include <assert.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
#include <sys/kd.h>
#include <linux/fb.h>
#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"
#include "fastmemcpy.h"
#include "sub.h"
#include "../postproc/rgb2rgb.h"
#ifdef CONFIG_VIDIX
#include "vosub_vidix.h"
#endif
#include "aspect.h"
#ifdef HAVE_PNG
extern vo_functions_t video_out_png;
#endif
static vo_info_t info = {
"Framebuffer Device",
"fbdev",
"Szabolcs Berecz <szabi@inf.elte.hu>",
""
};
LIBVO_EXTERN(fbdev)
extern int verbose;
#ifdef CONFIG_VIDIX
/* Name of VIDIX driver */
static const char *vidix_name = NULL;
#endif
static signed int pre_init_err = -2;
/******************************
* fb.modes support *
******************************/
extern char *monitor_hfreq_str;
extern char *monitor_vfreq_str;
extern char *monitor_dotclock_str;
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 PRINT_LINENUM printf(" at line %d\n", line_num)
#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) {
printf("needs geometry ");
return 0;
}
if (!m->pixclock) {
printf("needs timings ");
return 0;
}
return 1;
}
static FILE *fp;
static int line_num = 0;
static char *line;
static char *token[MAX_NR_TOKEN];
static uint32_t dstFourcc;
static int get_token(int num)
{
static int read_nextline = 1;
static int line_pos;
int i;
char c;
if (num >= MAX_NR_TOKEN) {
printf("get_token(): max >= MAX_NR_TOKEN!");
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\
do {\
if (!in_mode_def) {\
printf("'needs 'mode' first");\
goto err_out_print_linenum;\
}\
} while (0)
fb_mode_t *mode = NULL;
char *endptr; // strtoul()...
int in_mode_def = 0;
int tmp, i;
if (verbose > 0)
printf("Reading %s: ", cfgfile);
if ((fp = fopen(cfgfile, "r")) == NULL) {
printf("can't open '%s': %s\n", cfgfile, strerror(errno));
return -1;
}
if ((line = (char *) malloc(MAX_LINE_LEN + 1)) == NULL) {
printf("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) {
printf("'endmode' required");
goto err_out_print_linenum;
}
if (!validate_mode(mode))
goto err_out_not_valid;
loop_enter:
if (!(fb_modes = (fb_mode_t *) realloc(fb_modes,
sizeof(fb_mode_t) * (nr_modes + 1)))) {
printf("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)) {
printf("mode name '%s' isn't unique", token[0]);
goto err_out_print_linenum;
}
}
if (!(mode->name = strdup(token[0]))) {
printf("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:
if (verbose > 0)
printf("%d modes\n", nr_modes);
free(line);
fclose(fp);
return nr_modes;
err_out_parse_error:
printf("parse error");
err_out_print_linenum:
PRINT_LINENUM;
err_out:
if (fb_modes) {
free(fb_modes);
fb_modes = NULL;
}
nr_modes = 0;
free(line);
free(fp);
return -2;
err_out_not_valid:
printf("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;
if (verbose > 1)
printf(FBDEV "mode %dx%d:", m->xres, m->yres);
if (!in_range(hfreq, h)) {
ret = 0;
if (verbose > 1)
printf(" hsync out of range.");
}
if (!in_range(vfreq, v)) {
ret = 0;
if (verbose > 1)
printf(" vsync out of range.");
}
if (!in_range(dotclock, d)) {
ret = 0;
if (verbose > 1)
printf(" dotclock out of range.");
}
if (verbose > 1) {
if (ret)
printf(" hsync, vsync, dotclock ok.\n");
else
printf("\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;
if (verbose > 1)
printf(FBDEV "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;
if (verbose > 1) {
printf(FBDEV "First working mode: %dx%d\n", best->xres, best->yres);
printf(FBDEV "Searching for better modes\n");
}
for (curr = best + 1; i < nr_modes - 1; i++, curr++) {
if (!mode_works(curr, hfreq, vfreq, dotclock))
continue;
if (verbose > 1)
printf(FBDEV);
if (best->xres < xres || best->yres < yres) {
if (curr->xres > best->xres || curr->yres > best->yres) {
if (verbose > 1)
printf("better than %dx%d, which is too small.\n",
best->xres, best->yres);
best = curr;
} else if (verbose > 1)
printf("too small.\n");
} else if (curr->xres == best->xres && curr->yres == best->yres &&
vsf(curr) > vsf(best)) {
if (verbose > 1)
printf("faster screen refresh.\n");
best = curr;
} else if ((curr->xres <= best->xres && curr->yres <= best->yres) &&
(curr->xres >= xres && curr->yres >= yres)) {
if (verbose > 1)
printf("better than %dx%d, which is too large.\n",
best->xres, best->yres);
best = curr;
} else if (verbose > 1) {
if (curr->xres < xres || curr->yres < yres)
printf("too small.\n");
else if (curr->xres > best->xres || curr->yres > best->yres)
printf("too large.\n");
else printf("it's worse, don't know why.\n");
}
}
return best;
}
static void set_bpp(struct fb_var_screeninfo *p, int bpp)
{
p->bits_per_pixel = (bpp + 1) & ~1;
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;
}
}
static void fb_mode2fb_vinfo(fb_mode_t *m, struct fb_var_screeninfo *v)
{
v->xres = m->xres;
v->yres = m->yres;
v->xres_virtual = m->vxres;
v->yres_virtual = m->vyres;
set_bpp(v, m->depth);
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 */
char *fb_dev_name = NULL;
char *fb_mode_cfgfile = "/etc/fb.modes";
char *fb_mode_name = NULL;
static fb_mode_t *fb_mode = NULL;
/* vt related variables */
static int vt_fd;
static FILE *vt_fp;
static int vt_doit = 1;
/* vo_fbdev related variables */
static int fb_dev_fd;
static int fb_tty_fd;
static size_t fb_size;
static uint8_t *frame_buffer;
static uint8_t *L123123875; /* thx .so :) */
static struct fb_fix_screeninfo fb_finfo;
static struct fb_var_screeninfo fb_orig_vinfo;
static struct fb_var_screeninfo fb_vinfo;
static struct fb_cmap fb_oldcmap;
static int fb_cmap_changed = 0;
static int fb_pixel_size; // 32: 4 24: 3 16: 2 15: 2
static int fb_real_bpp; // 32: 24 24: 24 16: 16 15: 15
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 void (*draw_alpha_p)(int w, int h, unsigned char *src,
unsigned char *srca, int stride, unsigned char *dst,
int dstride);
static uint8_t *next_frame;
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;
static int flip;
/*
* Note: this function is completely cut'n'pasted from
* Chris Lawrence's code.
* (modified a bit to fit in my code...)
*/
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 = (rcols > gcols ? rcols : gcols);
cols = (cols > bcols ? cols : bcols);
red = malloc(cols * sizeof(red[0]));
if(!red) {
printf("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) {
printf("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) {
printf("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) {
printf("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;
}
#ifdef CONFIG_VIDIX
static uint32_t parseSubDevice(const char *sd)
{
if(memcmp(sd,"vidix",5) == 0) vidix_name = &sd[5]; /* vidix_name will be valid within init() */
else { printf(FBDEV "Unknown subdevice: '%s'\n", sd); return -1; }
return 0;
}
#endif
static int fb_preinit(void)
{
static int fb_preinit_done = 0;
static int fb_works = 0;
if (fb_preinit_done)
return fb_works;
if (!fb_dev_name && !(fb_dev_name = getenv("FRAMEBUFFER")))
fb_dev_name = "/dev/fb0";
if (verbose > 0)
printf(FBDEV "using %s\n", fb_dev_name);
if ((fb_dev_fd = open(fb_dev_name, O_RDWR)) == -1) {
printf(FBDEV "Can't open %s: %s\n", fb_dev_name, strerror(errno));
goto err_out;
}
if (ioctl(fb_dev_fd, FBIOGET_VSCREENINFO, &fb_vinfo)) {
printf(FBDEV "Can't get VSCREENINFO: %s\n", strerror(errno));
goto err_out_fd;
}
fb_orig_vinfo = fb_vinfo;
if ((fb_tty_fd = open("/dev/tty", O_RDWR)) < 0) {
if (verbose > 0)
printf(FBDEV "notice: Can't open /dev/tty: %s\n", strerror(errno));
}
fb_bpp = fb_vinfo.bits_per_pixel;
if (fb_bpp == 8 && !vo_dbpp) {
printf(FBDEV "8 bpp output is not supported.\n");
goto err_out_tty_fd;
}
/* 16 and 15 bpp is reported as 16 bpp */
if (fb_bpp == 16)
fb_bpp = fb_vinfo.red.length + fb_vinfo.green.length +
fb_vinfo.blue.length;
if (vo_dbpp) {
if (vo_dbpp != 15 && vo_dbpp != 16 && vo_dbpp != 24 &&
vo_dbpp != 32) {
printf(FBDEV "can't switch to %d bpp\n", vo_dbpp);
goto err_out_fd;
}
fb_bpp = vo_dbpp;
}
fb_preinit_done = 1;
fb_works = 1;
return 1;
err_out_tty_fd:
close(fb_tty_fd);
fb_tty_fd = -1;
err_out_fd:
close(fb_dev_fd);
fb_dev_fd = -1;
err_out:
fb_preinit_done = 1;
fb_works = 0;
return 0;
}
static void lots_of_printf(void)
{
if (verbose > 0) {
printf(FBDEV "var info:\n");
printf(FBDEV "xres: %u\n", fb_vinfo.xres);
printf(FBDEV "yres: %u\n", fb_vinfo.yres);
printf(FBDEV "xres_virtual: %u\n", fb_vinfo.xres_virtual);
printf(FBDEV "yres_virtual: %u\n", fb_vinfo.yres_virtual);
printf(FBDEV "xoffset: %u\n", fb_vinfo.xoffset);
printf(FBDEV "yoffset: %u\n", fb_vinfo.yoffset);
printf(FBDEV "bits_per_pixel: %u\n", fb_vinfo.bits_per_pixel);
printf(FBDEV "grayscale: %u\n", fb_vinfo.grayscale);
printf(FBDEV "red: %lu %lu %lu\n",
(unsigned long) fb_vinfo.red.offset,
(unsigned long) fb_vinfo.red.length,
(unsigned long) fb_vinfo.red.msb_right);
printf(FBDEV "green: %lu %lu %lu\n",
(unsigned long) fb_vinfo.green.offset,
(unsigned long) fb_vinfo.green.length,
(unsigned long) fb_vinfo.green.msb_right);
printf(FBDEV "blue: %lu %lu %lu\n",
(unsigned long) fb_vinfo.blue.offset,
(unsigned long) fb_vinfo.blue.length,
(unsigned long) fb_vinfo.blue.msb_right);
printf(FBDEV "transp: %lu %lu %lu\n",
(unsigned long) fb_vinfo.transp.offset,
(unsigned long) fb_vinfo.transp.length,
(unsigned long) fb_vinfo.transp.msb_right);
printf(FBDEV "nonstd: %u\n", fb_vinfo.nonstd);
if (verbose > 1) {
printf(FBDEV "activate: %u\n", fb_vinfo.activate);
printf(FBDEV "height: %u\n", fb_vinfo.height);
printf(FBDEV "width: %u\n", fb_vinfo.width);
printf(FBDEV "accel_flags: %u\n", fb_vinfo.accel_flags);
printf(FBDEV "timing:\n");
printf(FBDEV "pixclock: %u\n", fb_vinfo.pixclock);
printf(FBDEV "left_margin: %u\n", fb_vinfo.left_margin);
printf(FBDEV "right_margin: %u\n", fb_vinfo.right_margin);
printf(FBDEV "upper_margin: %u\n", fb_vinfo.upper_margin);
printf(FBDEV "lower_margin: %u\n", fb_vinfo.lower_margin);
printf(FBDEV "hsync_len: %u\n", fb_vinfo.hsync_len);
printf(FBDEV "vsync_len: %u\n", fb_vinfo.vsync_len);
printf(FBDEV "sync: %u\n", fb_vinfo.sync);
printf(FBDEV "vmode: %u\n", fb_vinfo.vmode);
}
printf(FBDEV "fix info:\n");
printf(FBDEV "framebuffer size: %d bytes\n", fb_finfo.smem_len);
printf(FBDEV "type: %lu\n", (unsigned long) fb_finfo.type);
printf(FBDEV "type_aux: %lu\n", (unsigned long) fb_finfo.type_aux);
printf(FBDEV "visual: %lu\n", (unsigned long) fb_finfo.visual);
printf(FBDEV "line_length: %lu bytes\n", (unsigned long) fb_finfo.line_length);
if (verbose > 1) {
printf(FBDEV "id: %.16s\n", fb_finfo.id);
printf(FBDEV "smem_start: %p\n", (void *) fb_finfo.smem_start);
printf(FBDEV "xpanstep: %u\n", fb_finfo.xpanstep);
printf(FBDEV "ypanstep: %u\n", fb_finfo.ypanstep);
printf(FBDEV "ywrapstep: %u\n", fb_finfo.ywrapstep);
printf(FBDEV "mmio_start: %p\n", (void *) fb_finfo.mmio_start);
printf(FBDEV "mmio_len: %u bytes\n", fb_finfo.mmio_len);
printf(FBDEV "accel: %u\n", fb_finfo.accel);
}
printf(FBDEV "fb_bpp: %d\n", fb_bpp);
printf(FBDEV "fb_real_bpp: %d\n", fb_real_bpp);
printf(FBDEV "fb_pixel_size: %d bytes\n", fb_pixel_size);
printf(FBDEV "other:\n");
printf(FBDEV "in_width: %d\n", in_width);
printf(FBDEV "in_height: %d\n", in_height);
printf(FBDEV "out_width: %d\n", out_width);
printf(FBDEV "out_height: %d\n", out_height);
printf(FBDEV "first_row: %d\n", first_row);
printf(FBDEV "last_row: %d\n", last_row);
if (verbose > 1)
printf(FBDEV "draw_alpha_p:%dbpp = %p\n", fb_bpp, draw_alpha_p);
}
}
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;
if (verbose > 1)
printf(FBDEV "vt_set_textarea(%d,%d): %d,%d\n", u, l, urow, lrow);
if(vt_fp) {
fprintf(vt_fp, "\33[%d;%dr\33[%d;%dH", urow, lrow, lrow, 0);
fflush(vt_fp);
}
}
static uint32_t 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 & 0x02;
int zoom = flags & 0x04;
fs = flags & 0x01;
flip = flags & 0x08;
if(pre_init_err == -2)
{
printf(FBDEV "Internal fatal error: init() was called before preinit()\n");
return -1;
}
if (pre_init_err) return 1;
#if 0
if (zoom
#ifdef CONFIG_VIDIX
&& !vidix_name
#endif
) {
printf(FBDEV "-zoom is not supported\n");
return 1;
}
#endif
if (fb_mode_name && !vm) {
printf(FBDEV "-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))) {
printf(FBDEV "can't find requested video mode\n");
return 1;
}
fb_mode2fb_vinfo(fb_mode, &fb_vinfo);
} 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) {
printf(FBDEV "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))) {
printf(FBDEV "can't find best video mode\n");
return 1;
}
printf(FBDEV "using mode %dx%d @ %.1fHz\n", fb_mode->xres,
fb_mode->yres, vsf(fb_mode));
fb_mode2fb_vinfo(fb_mode, &fb_vinfo);
}
fb_bpp_we_want = fb_bpp;
set_bpp(&fb_vinfo, fb_bpp);
fb_vinfo.xres_virtual = fb_vinfo.xres;
fb_vinfo.yres_virtual = fb_vinfo.yres;
if (fb_tty_fd >= 0 && ioctl(fb_tty_fd, KDSETMODE, KD_GRAPHICS) < 0) {
if (verbose > 0)
printf(FBDEV "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)) {
printf(FBDEV "Can't put VSCREENINFO: %s\n", strerror(errno));
if (fb_tty_fd >= 0 && ioctl(fb_tty_fd, KDSETMODE, KD_TEXT) < 0) {
printf(FBDEV "Can't restore text mode: %s\n", strerror(errno));
}
return 1;
}
fb_pixel_size = fb_vinfo.bits_per_pixel / 8;
fb_real_bpp = fb_vinfo.red.length + fb_vinfo.green.length +
fb_vinfo.blue.length;
fb_bpp = (fb_pixel_size == 4) ? 32 : fb_real_bpp;
if (fb_bpp_we_want != fb_bpp)
printf(FBDEV "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;
dstFourcc = IMGFMT_BGR32;
break;
case 24:
draw_alpha_p = vo_draw_alpha_rgb24;
dstFourcc = IMGFMT_BGR24;
break;
default:
case 16:
draw_alpha_p = vo_draw_alpha_rgb16;
dstFourcc = IMGFMT_BGR16;
break;
case 15:
draw_alpha_p = vo_draw_alpha_rgb15;
dstFourcc = IMGFMT_BGR15;
break;
}
if (flip & ((((pixel_format & 0xff) + 7) / 8) != fb_pixel_size)) {
printf(FBDEV "Flipped output with depth conversion is not "
"supported\n");
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) {
printf(FBDEV "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)) {
printf(FBDEV "Can't get FSCREENINFO: %s\n", strerror(errno));
return 1;
}
lots_of_printf();
if (fb_finfo.type != FB_TYPE_PACKED_PIXELS) {
printf(FBDEV "type %d not supported\n", fb_finfo.type);
return 1;
}
switch (fb_finfo.visual) {
case FB_VISUAL_TRUECOLOR:
break;
case FB_VISUAL_DIRECTCOLOR:
if (verbose > 0)
printf(FBDEV "creating cmap for directcolor\n");
if (ioctl(fb_dev_fd, FBIOGETCMAP, &fb_oldcmap)) {
printf(FBDEV "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)) {
printf(FBDEV "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:
printf(FBDEV "visual: %d not yet supported\n",
fb_finfo.visual);
return 1;
}
fb_line_len = fb_finfo.line_length;
fb_size = fb_finfo.smem_len;
frame_buffer = NULL;
next_frame = NULL;
#ifdef CONFIG_VIDIX
if(vidix_name)
{
unsigned image_width,image_height,x_offset,y_offset;
if(zoom || fs){
aspect_save_orig(width,height);
aspect_save_prescale(d_width,d_height);
aspect_save_screenres(fb_xres,fb_yres);
aspect(&image_width,&image_height,fs ? A_ZOOM : A_NOZOOM);
} else {
image_width=width;
image_height=height;
}
if(fb_xres > image_width)
x_offset = (fb_xres - image_width) / 2;
else x_offset = 0;
if(fb_yres > image_height)
y_offset = (fb_yres - image_height) / 2;
else y_offset = 0;
//FIXME: update geometry code
//geometry(&x_offset,&y_offset,fb_xres,fb_yres,image_width,image_height);
if(vidix_init(width,height,x_offset,y_offset,image_width,
image_height,format,fb_bpp,
fb_xres,fb_yres) != 0)
{
printf(FBDEV "Can't initialize VIDIX driver\n");
vidix_name = NULL;
vidix_term();
return -1;
}
else printf(FBDEV "Using VIDIX\n");
vidix_start();
}
else
#endif
{
int x_offset=0,y_offset=0;
if ((frame_buffer = (uint8_t *) mmap(0, fb_size, PROT_READ | PROT_WRITE,
MAP_SHARED, fb_dev_fd, 0)) == (uint8_t *) -1) {
printf(FBDEV "Can't mmap %s: %s\n", fb_dev_name, strerror(errno));
return 1;
}
//FIXME: update geometry code
//geometry(&x_offset,&y_offset,fb_xres,fb_yres,out_width,out_height);
L123123875 = frame_buffer + (out_width - in_width) * fb_pixel_size /
2 + ( (out_height - in_height) / 2 ) * fb_line_len +
x_offset * fb_pixel_size + y_offset * fb_line_len;
if (verbose > 0) {
if (verbose > 1) {
printf(FBDEV "frame_buffer @ %p\n", frame_buffer);
printf(FBDEV "L123123875 @ %p\n", L123123875);
}
printf(FBDEV "pixel per line: %d\n", fb_line_len / fb_pixel_size);
}
if (!(next_frame = (uint8_t *) malloc(in_width * in_height * fb_pixel_size))) {
printf(FBDEV "Can't malloc next_frame: %s\n", strerror(errno));
return 1;
}
if (fs || vm)
memset(frame_buffer, '\0', fb_line_len * fb_yres);
if (format == IMGFMT_YV12)
yuv2rgb_init(fb_bpp, MODE_RGB);
}
if (vt_doit && (vt_fd = open("/dev/tty", O_WRONLY)) == -1) {
printf(FBDEV "can't open /dev/tty: %s\n", strerror(errno));
vt_doit = 0;
}
if (vt_doit && !(vt_fp = fdopen(vt_fd, "w"))) {
printf(FBDEV "can't fdopen /dev/tty: %s\n", strerror(errno));
vt_doit = 0;
}
if (vt_doit)
vt_set_textarea(last_row, fb_yres);
return 0;
}
static uint32_t query_format(uint32_t format)
{
int ret = VFCAP_OSD|VFCAP_CSP_SUPPORTED; /* osd/sub is supported on every bpp */
if (!fb_preinit())
return 0;
#ifdef CONFIG_VIDIX
if(vidix_name)
return (vidix_query_fourcc(format));
#endif
if ((format & IMGFMT_BGR_MASK) == IMGFMT_BGR) {
int bpp = format & 0xff;
if (bpp == fb_bpp)
return ret|VFCAP_CSP_SUPPORTED_BY_HW;
else if (bpp == 15 && fb_bpp == 16)
return ret;
else if (bpp == 24 && fb_bpp == 32)
return ret;
}
if (format == IMGFMT_YV12)
return ret;
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;
int dstride;
#ifdef USE_CONVERT2FB
if (pixel_format == IMGFMT_YV12) {
dst = L123123875 + (fb_xres * y0 + x0) * fb_pixel_size;
dstride = fb_xres * fb_pixel_size;
}
else
#endif
{
dst = next_frame + (in_width * y0 + x0) * fb_pixel_size;
dstride = in_width * fb_pixel_size;
}
(*draw_alpha_p)(w, h, src, srca, stride, dst, dstride);
}
static uint32_t draw_frame(uint8_t *src[])
{
if (pixel_format == IMGFMT_YV12) {
#ifdef USE_CONVERT2FB
yuv2rgb(L123123875, src[0], src[1], src[2], fb_xres,
fb_yres, fb_xres * fb_pixel_size,
in_width, in_width / 2);
#else
yuv2rgb(next_frame, src[0], src[1], src[2], in_width,
in_height, in_width * fb_pixel_size,
in_width, in_width / 2);
#endif
} else if (flip) {
int h = in_height;
int len = in_width * fb_pixel_size;
char *d = next_frame + (in_height - 1) * len;
char *s = src[0];
while (h--) {
memcpy(d, s, len);
s += len;
d -= len;
}
} else {
int sbpp = ((pixel_format & 0xff) + 7) / 8;
char *d = next_frame;
char *s = src[0];
if (sbpp == fb_pixel_size) {
if (fb_real_bpp == 16 && pixel_format == (IMGFMT_BGR|15))
rgb15to16(s, d, 2 * in_width * in_height);
else
memcpy(d, s, sbpp * in_width * in_height);
}
}
return 0;
}
static uint32_t draw_slice(uint8_t *src[], int stride[], int w, int h, int x,
int y)
{
uint8_t *dest;
#ifdef USE_CONVERT2FB
if (pixel_format == IMGFMT_YV12) {
if(x < fb_xres && y < fb_yres) {
if(x+w > fb_xres) w= fb_xres-x;
if(y+h > fb_yres) h= fb_yres-y;
dest = L123123875 + (fb_xres * y + x) * fb_pixel_size;
yuv2rgb(dest, src[0], src[1], src[2], w, h, fb_xres * fb_pixel_size,
stride[0], stride[1]);
}
return 0;
}
#endif
dest = next_frame + (in_width * y + x) * fb_pixel_size;
yuv2rgb(dest, src[0], src[1], src[2], w, h, in_width * fb_pixel_size,
stride[0], stride[1]);
return 0;
}
static void check_events(void)
{
}
static void put_frame(void)
{
int i, out_offset = 0, in_offset = 0;
#ifdef USE_CONVERT2FB
if(pixel_format == IMGFMT_YV12)
return;
#endif
for (i = 0; i < in_height; i++) {
memcpy(L123123875 + out_offset, next_frame + in_offset,
in_width * fb_pixel_size);
out_offset += fb_line_len;
in_offset += in_width * fb_pixel_size;
}
}
static void draw_osd(void)
{
vo_draw_text(in_width, in_height, draw_alpha);
}
static void flip_page(void)
{
put_frame();
}
static void uninit(void)
{
if (verbose > 0)
printf(FBDEV "uninit\n");
if (fb_cmap_changed) {
if (ioctl(fb_dev_fd, FBIOPUTCMAP, &fb_oldcmap))
printf(FBDEV "Can't restore original cmap\n");
fb_cmap_changed = 0;
}
if(next_frame) free(next_frame);
if (ioctl(fb_dev_fd, FBIOGET_VSCREENINFO, &fb_vinfo))
printf(FBDEV "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))
printf(FBDEV "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)
printf(FBDEV "Can't restore text mode: %s\n", strerror(errno));
}
if (vt_doit)
vt_set_textarea(0, fb_orig_vinfo.yres);
close(fb_tty_fd);
close(fb_dev_fd);
if(frame_buffer) munmap(frame_buffer, fb_size);
#ifdef CONFIG_VIDIX
if(vidix_name) vidix_term();
#endif
}
static uint32_t preinit(const char *vo_subdevice)
{
pre_init_err = 0;
#ifdef CONFIG_VIDIX
if(vo_subdevice) parseSubDevice(vo_subdevice);
if(vidix_name) pre_init_err = vidix_preinit(vidix_name,&video_out_fbdev);
if(verbose > 2)
printf("vo_subdevice: initialization returns: %i\n",pre_init_err);
#endif
if(!pre_init_err) return (pre_init_err=(fb_preinit()?0:-1));
return(-1);
}
static uint32_t control(uint32_t request, void *data, ...)
{
switch (request) {
case VOCTRL_QUERY_FORMAT:
return query_format(*((uint32_t*)data));
}
return VO_NOTIMPL;
}
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