mirror of
https://github.com/mpv-player/mpv
synced 2024-12-23 23:32:26 +00:00
c64e4e48d9
This property indicates whether mouse cursor is located on button or not for disc naviation.
377 lines
12 KiB
C
377 lines
12 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv 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; either version 2 of the License, or
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* (at your option) any later version.
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*
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* mpv 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 along
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <limits.h>
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#include <pthread.h>
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#include <assert.h>
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#include "core.h"
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#include "command.h"
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#include "common/msg.h"
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#include "common/common.h"
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#include "input/input.h"
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#include "demux/demux.h"
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#include "stream/discnav.h"
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#include "sub/dec_sub.h"
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#include "sub/osd.h"
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#include "video/mp_image.h"
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#include "video/decode/dec_video.h"
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struct mp_nav_state {
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struct mp_log *log;
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int nav_still_frame;
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bool nav_eof;
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bool nav_menu;
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bool nav_draining;
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bool nav_mouse_on_button;
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// Accessed by OSD (possibly separate thread)
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// Protected by the given lock
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pthread_mutex_t osd_lock;
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int hi_visible;
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int highlight[4]; // x0 y0 x1 y1
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int vidsize[2];
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int subsize[2];
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struct sub_bitmap *hi_elem;
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struct sub_bitmap *overlays[2];
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struct sub_bitmap outputs[3];
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};
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static inline bool is_valid_size(int size[2])
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{
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return size[0] >= 1 && size[1] >= 1;
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}
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static void update_resolution(struct MPContext *mpctx)
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{
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struct mp_nav_state *nav = mpctx->nav_state;
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int size[2] = {0};
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if (mpctx->d_sub[0])
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sub_control(mpctx->d_sub[0], SD_CTRL_GET_RESOLUTION, size);
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if (!is_valid_size(size)) {
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struct mp_image_params vid = {0};
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if (mpctx->d_video)
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vid = mpctx->d_video->decoder_output;
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size[0] = vid.w;
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size[1] = vid.h;
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}
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pthread_mutex_lock(&nav->osd_lock);
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nav->vidsize[0] = size[0];
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nav->vidsize[1] = size[1];
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pthread_mutex_unlock(&nav->osd_lock);
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}
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// Send update events and such.
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static void update_state(struct MPContext *mpctx)
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{
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mp_notify_property(mpctx, "disc-menu-active");
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}
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// Return 1 if in menu, 0 if in video, or <0 if no navigation possible.
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int mp_nav_in_menu(struct MPContext *mpctx)
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{
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return mpctx->nav_state ? mpctx->nav_state->nav_menu : -1;
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}
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static void update_mouse_on_button(struct MPContext *mpctx)
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{
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mp_notify_property(mpctx, "disc-mouse-on-button");
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}
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static void set_mouse_on_button(struct MPContext *mpctx, bool in)
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{
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struct mp_nav_state *nav = mpctx->nav_state;
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if (nav->nav_mouse_on_button != in) {
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nav->nav_mouse_on_button = in;
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update_mouse_on_button(mpctx);
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}
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}
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bool mp_nav_mouse_on_button(struct MPContext *mpctx)
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{
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return mpctx->nav_state ? mpctx->nav_state->nav_mouse_on_button : false;
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}
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// If a demuxer is accessing the stream, we have to use demux_stream_control()
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// to avoid synchronization issues; otherwise access it directly.
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static int run_stream_control(struct MPContext *mpctx, int cmd, void *arg)
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{
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if (mpctx->demuxer) {
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return demux_stream_control(mpctx->demuxer, cmd, arg);
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} else if (mpctx->stream) {
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return stream_control(mpctx->stream, cmd, arg);
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}
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return STREAM_ERROR;
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}
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// Allocate state and enable navigation features. Must happen before
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// initializing cache, because the cache would read data. Since stream_dvdnav is
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// in a mode which skips all transitions on reading data (before enabling
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// navigation), this would skip some menu screens.
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void mp_nav_init(struct MPContext *mpctx)
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{
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assert(!mpctx->nav_state);
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// dvdnav is interactive
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if (mpctx->encode_lavc_ctx)
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return;
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struct mp_nav_cmd inp = {MP_NAV_CMD_ENABLE};
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if (run_stream_control(mpctx, STREAM_CTRL_NAV_CMD, &inp) < 1)
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return;
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mpctx->nav_state = talloc_zero(NULL, struct mp_nav_state);
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mpctx->nav_state->log = mp_log_new(mpctx->nav_state, mpctx->log, "discnav");
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pthread_mutex_init(&mpctx->nav_state->osd_lock, NULL);
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MP_VERBOSE(mpctx->nav_state, "enabling\n");
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mp_input_enable_section(mpctx->input, "discnav",
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MP_INPUT_ALLOW_VO_DRAGGING | MP_INPUT_ALLOW_HIDE_CURSOR);
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update_state(mpctx);
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update_mouse_on_button(mpctx);
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}
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void mp_nav_reset(struct MPContext *mpctx)
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{
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struct mp_nav_state *nav = mpctx->nav_state;
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if (!nav)
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return;
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struct mp_nav_cmd inp = {MP_NAV_CMD_RESUME};
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run_stream_control(mpctx, STREAM_CTRL_NAV_CMD, &inp);
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osd_set_nav_highlight(mpctx->osd, NULL);
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nav->hi_visible = 0;
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nav->nav_menu = false;
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nav->nav_draining = false;
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nav->nav_still_frame = 0;
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mp_input_disable_section(mpctx->input, "discnav-menu");
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run_stream_control(mpctx, STREAM_CTRL_RESUME_CACHE, NULL);
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update_state(mpctx);
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}
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void mp_nav_destroy(struct MPContext *mpctx)
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{
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osd_set_nav_highlight(mpctx->osd, NULL);
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if (!mpctx->nav_state)
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return;
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mp_input_disable_section(mpctx->input, "discnav");
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mp_input_disable_section(mpctx->input, "discnav-menu");
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pthread_mutex_destroy(&mpctx->nav_state->osd_lock);
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talloc_free(mpctx->nav_state);
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mpctx->nav_state = NULL;
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update_state(mpctx);
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update_mouse_on_button(mpctx);
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}
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void mp_nav_user_input(struct MPContext *mpctx, char *command)
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{
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struct mp_nav_state *nav = mpctx->nav_state;
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if (!nav)
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return;
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// In the short time while the demuxer is opened (running in a different
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// thread) we can't access the stream directly. Once the demuxer is opened,
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// we can access the stream via demux_stream_control() though.
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if (!mpctx->demuxer)
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return;
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if (strcmp(command, "mouse_move") == 0) {
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struct mp_image_params vid = {0};
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if (mpctx->d_video)
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vid = mpctx->d_video->decoder_output;
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struct mp_nav_cmd inp = {MP_NAV_CMD_MOUSE_POS};
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int x, y;
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mp_input_get_mouse_pos(mpctx->input, &x, &y);
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osd_coords_to_video(mpctx->osd, vid.w, vid.h, &x, &y);
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inp.u.mouse_pos.x = x;
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inp.u.mouse_pos.y = y;
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run_stream_control(mpctx, STREAM_CTRL_NAV_CMD, &inp);
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set_mouse_on_button(mpctx, inp.mouse_on_button);
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} else {
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struct mp_nav_cmd inp = {MP_NAV_CMD_MENU};
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inp.u.menu.action = command;
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run_stream_control(mpctx, STREAM_CTRL_NAV_CMD, &inp);
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}
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}
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void mp_handle_nav(struct MPContext *mpctx)
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{
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struct mp_nav_state *nav = mpctx->nav_state;
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if (!nav)
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return;
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mpctx->sleeptime = MPMIN(mpctx->sleeptime, 0.5);
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while (1) {
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if (!mpctx->demuxer)
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break;
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struct mp_nav_event *ev = NULL;
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demux_control(mpctx->demuxer, DEMUXER_CTRL_GET_NAV_EVENT, &ev);
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if (!ev)
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break;
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switch (ev->event) {
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case MP_NAV_EVENT_DRAIN: {
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nav->nav_draining = true;
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MP_VERBOSE(nav, "drain requested\n");
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break;
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}
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case MP_NAV_EVENT_RESET_ALL: {
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mpctx->stop_play = PT_RELOAD_DEMUXER;
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MP_VERBOSE(nav, "reload\n");
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// return immediately.
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// other events should be handled after reloaded.
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talloc_free(ev);
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return;
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}
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case MP_NAV_EVENT_RESET: {
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nav->nav_still_frame = 0;
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break;
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}
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case MP_NAV_EVENT_EOF:
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nav->nav_eof = true;
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break;
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case MP_NAV_EVENT_STILL_FRAME: {
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int len = ev->u.still_frame.seconds;
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MP_VERBOSE(nav, "wait for %d seconds\n", len);
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if (len > 0 && nav->nav_still_frame == 0)
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nav->nav_still_frame = len;
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break;
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}
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case MP_NAV_EVENT_MENU_MODE:
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nav->nav_menu = ev->u.menu_mode.enable;
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if (nav->nav_menu) {
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mp_input_enable_section(mpctx->input, "discnav-menu",
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MP_INPUT_ON_TOP);
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} else {
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mp_input_disable_section(mpctx->input, "discnav-menu");
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}
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update_state(mpctx);
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break;
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case MP_NAV_EVENT_HIGHLIGHT: {
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pthread_mutex_lock(&nav->osd_lock);
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MP_VERBOSE(nav, "highlight: %d %d %d - %d %d\n",
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ev->u.highlight.display,
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ev->u.highlight.sx, ev->u.highlight.sy,
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ev->u.highlight.ex, ev->u.highlight.ey);
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nav->highlight[0] = ev->u.highlight.sx;
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nav->highlight[1] = ev->u.highlight.sy;
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nav->highlight[2] = ev->u.highlight.ex;
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nav->highlight[3] = ev->u.highlight.ey;
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nav->hi_visible = ev->u.highlight.display;
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pthread_mutex_unlock(&nav->osd_lock);
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update_resolution(mpctx);
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osd_set_nav_highlight(mpctx->osd, mpctx);
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break;
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}
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case MP_NAV_EVENT_OVERLAY: {
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pthread_mutex_lock(&nav->osd_lock);
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for (int i = 0; i < 2; i++) {
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if (nav->overlays[i])
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talloc_free(nav->overlays[i]);
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nav->overlays[i] = talloc_steal(nav, ev->u.overlay.images[i]);
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}
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pthread_mutex_unlock(&nav->osd_lock);
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update_resolution(mpctx);
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osd_set_nav_highlight(mpctx->osd, mpctx);
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break;
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}
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default: ; // ignore
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}
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talloc_free(ev);
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}
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update_resolution(mpctx);
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if (mpctx->stop_play == AT_END_OF_FILE) {
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if (nav->nav_still_frame > 0) {
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// gross hack
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mpctx->time_frame += nav->nav_still_frame;
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nav->nav_still_frame = -2;
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} else if (nav->nav_still_frame == -2) {
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struct mp_nav_cmd inp = {MP_NAV_CMD_SKIP_STILL};
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run_stream_control(mpctx, STREAM_CTRL_NAV_CMD, &inp);
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}
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}
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if (nav->nav_draining && mpctx->stop_play == AT_END_OF_FILE) {
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MP_VERBOSE(nav, "execute drain\n");
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struct mp_nav_cmd inp = {MP_NAV_CMD_DRAIN_OK};
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run_stream_control(mpctx, STREAM_CTRL_NAV_CMD, &inp);
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nav->nav_draining = false;
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run_stream_control(mpctx, STREAM_CTRL_RESUME_CACHE, NULL);
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}
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// E.g. keep displaying still frames
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if (mpctx->stop_play == AT_END_OF_FILE && !nav->nav_eof)
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mpctx->stop_play = KEEP_PLAYING;
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}
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// Render "fake" highlights, because using actual dvd sub highlight elements
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// is too hard, and would require changes to libavcodec's dvdsub decoder.
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// Note: a proper solution would introduce something like
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// SD_CTRL_APPLY_DVDNAV, which would crop the vobsub frame,
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// and apply the current CLUT.
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void mp_nav_get_highlight(void *priv, struct mp_osd_res res,
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struct sub_bitmaps *out_imgs)
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{
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struct MPContext *mpctx = priv;
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struct mp_nav_state *nav = mpctx->nav_state;
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pthread_mutex_lock(&nav->osd_lock);
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struct sub_bitmap *sub = nav->hi_elem;
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if (!sub)
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sub = talloc_zero(nav, struct sub_bitmap);
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nav->hi_elem = sub;
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if (!is_valid_size(nav->vidsize)) {
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pthread_mutex_unlock(&nav->osd_lock);
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return;
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}
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int sizes[2] = {nav->vidsize[0], nav->vidsize[1]};
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if (sizes[0] != nav->subsize[0] || sizes[1] != nav->subsize[1]) {
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talloc_free(sub->bitmap);
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sub->bitmap = talloc_array(sub, uint32_t, sizes[0] * sizes[1]);
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memset(sub->bitmap, 0x80, talloc_get_size(sub->bitmap));
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nav->subsize[0] = sizes[0];
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nav->subsize[1] = sizes[1];
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}
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out_imgs->num_parts = 0;
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if (nav->hi_visible) {
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sub->x = nav->highlight[0];
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sub->y = nav->highlight[1];
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sub->w = MPCLAMP(nav->highlight[2] - sub->x, 0, sizes[0]);
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sub->h = MPCLAMP(nav->highlight[3] - sub->y, 0, sizes[1]);
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sub->stride = sub->w * 4;
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if (sub->w > 0 && sub->h > 0)
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nav->outputs[out_imgs->num_parts++] = *sub;
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}
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if (nav->overlays[0])
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nav->outputs[out_imgs->num_parts++] = *nav->overlays[0];
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if (nav->overlays[1])
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nav->outputs[out_imgs->num_parts++] = *nav->overlays[1];
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if (out_imgs->num_parts) {
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out_imgs->parts = nav->outputs;
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out_imgs->format = SUBBITMAP_RGBA;
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osd_rescale_bitmaps(out_imgs, sizes[0], sizes[1], res, 0);
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}
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pthread_mutex_unlock(&nav->osd_lock);
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}
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