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mpv/libvo/vo_caca.c

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/*
* video output driver for libcaca
*
* by Pigeon <pigeon@pigeond.net>
*
* Some functions/codes/ideas are from x11 and aalib vo
*
* TODO: support draw_alpha?
*
* 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 <sys/stat.h>
#include <unistd.h>
#include <string.h>
#include <time.h>
#include <errno.h>
#include <assert.h>
#include <caca.h>
#include "config.h"
#include "video_out.h"
#include "sub/sub.h"
#include "libmpcodecs/mp_image.h"
#include "libmpcodecs/vfcap.h"
#include "input/keycodes.h"
#include "input/input.h"
#include "mp_msg.h"
#include "mp_fifo.h"
/* caca stuff */
static caca_canvas_t *canvas;
static caca_display_t *display;
static caca_dither_t *dither = NULL;
static const char *dither_antialias = "default";
static const char *dither_charset = "default";
static const char *dither_color = "default";
static const char *dither_algo = "none";
/* image infos */
static int image_format;
static int image_width;
static int image_height;
static int screen_w, screen_h;
/* We want 24bpp always for now */
static unsigned int bpp = 24;
static unsigned int depth = 3;
static unsigned int rmask = 0xff0000;
static unsigned int gmask = 0x00ff00;
static unsigned int bmask = 0x0000ff;
static unsigned int amask = 0;
#define MESSAGE_SIZE 512
#define MESSAGE_DURATION 5
static time_t stoposd = 0;
static int showosdmessage = 0;
static char osdmessagetext[MESSAGE_SIZE];
static char posbar[MESSAGE_SIZE];
static int osdx = 0, osdy = 0;
static int posbary = 2;
static void osdmessage(int duration, const char *fmt, ...)
{
/* for outputting a centered string at the window bottom for a while */
va_list ar;
char m[MESSAGE_SIZE];
va_start(ar, fmt);
vsprintf(m, fmt, ar);
va_end(ar);
strcpy(osdmessagetext, m);
showosdmessage = 1;
stoposd = time(NULL) + duration;
osdx = (screen_w - strlen(osdmessagetext)) / 2;
posbar[0] = '\0';
}
static void osdpercent(int duration, int min, int max, int val,
const char *desc, const char *unit)
{
/* prints a bar for setting values */
float step;
int where, i;
step = (float)screen_w / (float)(max - min);
where = (val - min) * step;
osdmessage(duration, "%s: %i%s", desc, val, unit);
posbar[0] = '|';
posbar[screen_w - 1] = '|';
for (i = 0; i < screen_w; i++) {
if (i == where)
posbar[i] = '#';
else
posbar[i] = '-';
}
if (where != 0)
posbar[0] = '|';
if (where != (screen_w - 1))
posbar[screen_w - 1] = '|';
posbar[screen_w] = '\0';
}
static int resize(void)
{
screen_w = caca_get_canvas_width(canvas);
screen_h = caca_get_canvas_height(canvas);
caca_free_dither(dither);
dither = caca_create_dither(bpp, image_width, image_height,
depth * image_width,
rmask, gmask, bmask, amask);
if (dither == NULL) {
mp_msg(MSGT_VO, MSGL_FATAL, "vo_caca: caca_create_dither failed!\n");
return ENOSYS;
}
/* Default libcaca features */
caca_set_dither_antialias(dither, dither_antialias);
caca_set_dither_charset(dither, dither_charset);
caca_set_dither_color(dither, dither_color);
caca_set_dither_algorithm(dither, dither_algo);
return 0;
}
static int config(struct vo *vo, uint32_t width, uint32_t height,
uint32_t d_width, uint32_t d_height, uint32_t flags,
uint32_t format)
{
image_height = height;
image_width = width;
image_format = format;
showosdmessage = 0;
posbar[0] = '\0';
return resize();
}
static uint32_t draw_image(struct vo *vo, mp_image_t *mpi)
{
assert(mpi->stride[0] == image_width * 3);
caca_dither_bitmap(canvas, 0, 0, screen_w, screen_h, dither,
mpi->planes[0]);
return true;
}
static int draw_slice(struct vo *vo, uint8_t *src[], int stride[], int w, int h,
int x, int y)
{
return 0;
}
static void flip_page(struct vo *vo)
{
if (showosdmessage) {
if (time(NULL) >= stoposd) {
showosdmessage = 0;
if (*posbar)
posbar[0] = '\0';
} else {
caca_put_str(canvas, osdx, osdy, osdmessagetext);
if (*posbar)
caca_put_str(canvas, 0, posbary, posbar);
}
}
caca_refresh_display(display);
}
static void set_next_str(const char * const *list, const char **str,
const char **msg)
{
int ind;
for (ind = 0; list[ind]; ind += 2) {
if (strcmp(list[ind], *str) == 0) {
if (list[ind + 2] == NULL)
ind = -2;
*str = list[ind + 2];
*msg = list[ind + 3];
return;
}
}
*str = list[0];
*msg = list[1];
}
static const struct mp_keymap keysym_map[] = {
{CACA_KEY_RETURN, KEY_ENTER}, {CACA_KEY_ESCAPE, KEY_ESC},
{CACA_KEY_UP, KEY_DOWN}, {CACA_KEY_DOWN, KEY_DOWN},
{CACA_KEY_LEFT, KEY_LEFT}, {CACA_KEY_RIGHT, KEY_RIGHT},
{CACA_KEY_PAGEUP, KEY_PAGE_UP}, {CACA_KEY_PAGEDOWN, KEY_PAGE_DOWN},
{CACA_KEY_HOME, KEY_HOME}, {CACA_KEY_END, KEY_END},
{CACA_KEY_INSERT, KEY_INSERT}, {CACA_KEY_DELETE, KEY_DELETE},
{CACA_KEY_BACKSPACE, KEY_BACKSPACE}, {CACA_KEY_TAB, KEY_TAB},
{CACA_KEY_PAUSE, KEY_PAUSE},
{CACA_KEY_F1, KEY_F+1}, {CACA_KEY_F2, KEY_F+2},
{CACA_KEY_F3, KEY_F+3}, {CACA_KEY_F4, KEY_F+4},
{CACA_KEY_F5, KEY_F+5}, {CACA_KEY_F6, KEY_F+6},
{CACA_KEY_F7, KEY_F+7}, {CACA_KEY_F8, KEY_F+8},
{CACA_KEY_F9, KEY_F+9}, {CACA_KEY_F10, KEY_F+10},
{CACA_KEY_F11, KEY_F+11}, {CACA_KEY_F12, KEY_F+12},
{CACA_KEY_F13, KEY_F+13}, {CACA_KEY_F14, KEY_F+14},
{CACA_KEY_F15, KEY_F+15},
{0, 0}
};
static void check_events(struct vo *vo)
{
caca_event_t cev;
while (caca_get_event(display, CACA_EVENT_ANY, &cev, 0)) {
switch (cev.type) {
case CACA_EVENT_RESIZE:
caca_refresh_display(display);
resize();
break;
case CACA_EVENT_QUIT:
mplayer_put_key(vo->key_fifo, KEY_CLOSE_WIN);
break;
case CACA_EVENT_MOUSE_MOTION:
vo_mouse_movement(vo, cev.data.mouse.x, cev.data.mouse.y);
break;
case CACA_EVENT_MOUSE_PRESS:
if (!vo_nomouse_input)
mplayer_put_key(vo->key_fifo,
(MOUSE_BTN0 + cev.data.mouse.button - 1) | MP_KEY_DOWN);
break;
case CACA_EVENT_MOUSE_RELEASE:
if (!vo_nomouse_input)
mplayer_put_key(vo->key_fifo,
MOUSE_BTN0 + cev.data.mouse.button - 1);
break;
case CACA_EVENT_KEY_PRESS:
{
int key = cev.data.key.ch;
int mpkey = lookup_keymap_table(keysym_map, key);
const char *msg_name;
if (mpkey)
mplayer_put_key(vo->key_fifo, mpkey);
else
switch (key) {
case 'd':
case 'D':
/* Toggle dithering algorithm */
set_next_str(caca_get_dither_algorithm_list(dither),
&dither_algo, &msg_name);
caca_set_dither_algorithm(dither, dither_algo);
osdmessage(MESSAGE_DURATION, "Using %s", msg_name);
break;
case 'a':
case 'A':
/* Toggle antialiasing method */
set_next_str(caca_get_dither_antialias_list(dither),
&dither_antialias, &msg_name);
caca_set_dither_antialias(dither, dither_antialias);
osdmessage(MESSAGE_DURATION, "Using %s", msg_name);
break;
case 'h':
case 'H':
/* Toggle charset method */
set_next_str(caca_get_dither_charset_list(dither),
&dither_charset, &msg_name);
caca_set_dither_charset(dither, dither_charset);
osdmessage(MESSAGE_DURATION, "Using %s", msg_name);
break;
case 'c':
case 'C':
/* Toggle color method */
set_next_str(caca_get_dither_color_list(dither),
&dither_color, &msg_name);
caca_set_dither_color(dither, dither_color);
osdmessage(MESSAGE_DURATION, "Using %s", msg_name);
break;
default:
if (key <= 255)
mplayer_put_key(vo->key_fifo, key);
break;
}
}
}
}
}
static void uninit(struct vo *vo)
{
caca_free_dither(dither);
dither = NULL;
caca_free_display(display);
caca_free_canvas(canvas);
}
static void draw_osd(struct vo *vo, struct osd_state *osd)
{
if (vo_osd_progbar_type != -1)
osdpercent(MESSAGE_DURATION, 0, 255, vo_osd_progbar_value,
sub_osd_names[vo_osd_progbar_type], "");
}
static int preinit(struct vo *vo, const char *arg)
{
if (arg) {
mp_msg(MSGT_VO, MSGL_ERR, "vo_caca: Unknown subdevice: %s\n", arg);
return ENOSYS;
}
canvas = caca_create_canvas(0, 0);
if (canvas == NULL) {
mp_msg(MSGT_VO, MSGL_ERR, "vo_caca: failed to create canvas\n");
return ENOSYS;
}
display = caca_create_display(canvas);
if (display == NULL) {
mp_msg(MSGT_VO, MSGL_ERR, "vo_caca: failed to create display\n");
caca_free_canvas(canvas);
return ENOSYS;
}
caca_set_display_title(display, "mpv");
return 0;
}
static int query_format(uint32_t format)
{
if (format == IMGFMT_BGR24)
return VFCAP_OSD | VFCAP_CSP_SUPPORTED;
return 0;
}
static int control(struct vo *vo, uint32_t request, void *data)
{
switch (request) {
case VOCTRL_QUERY_FORMAT:
return query_format(*((uint32_t *)data));
case VOCTRL_DRAW_IMAGE:
return draw_image(vo, data);
default:
return VO_NOTIMPL;
}
}
const struct vo_driver video_out_caca = {
.is_new = false,
.info = &(const vo_info_t) {
"libcaca",
"caca",
"Pigeon <pigeon@pigeond.net>",
""
},
.preinit = preinit,
.config = config,
.control = control,
.draw_slice = draw_slice,
.draw_osd = draw_osd,
.flip_page = flip_page,
.check_events = check_events,
.uninit = uninit,
};
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