libmenu/vf_menu.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include "config.h"
  20 #include "mp_msg.h"
  21 #include "help_mp.h"
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27 #include "mplayer.h"
  28 #include "mp_msg.h"
  29
  30 #include "libmpcodecs/img_format.h"
  31 #include "libmpcodecs/mp_image.h"
  32 #include "libmpcodecs/vf.h"
  33
  34 #include "libvo/fastmemcpy.h"
  35 #include "libvo/video_out.h"
  36 #include "libvo/font_load.h"
  37 #include "libvo/sub.h"
  38 #include "input/input.h"
  39 #include "m_struct.h"
  40 #include "menu.h"
  41 #include "access_mpcontext.h"
  42
  43
  44 static struct vf_priv_s* st_priv = NULL;
  45
  46 static mp_image_t* pause_mpi = NULL;
  47 static int go2pause = 0;
  48 /// if nonzero display menu at startup
  49 int menu_startup = 0;
  50
  51 struct vf_priv_s {
  52   menu_t* root;
  53   menu_t* current;
  54   int passthrough;
  55 };
  56
  57 static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts);
  58
  59 void vf_menu_pause_update(struct vf_instance *vf) {
  60   const vo_functions_t *video_out = mpctx_get_video_out(vf->priv->current->ctx);
  61   if(pause_mpi) {
  62     put_image(vf,pause_mpi, MP_NOPTS_VALUE);
  63     // Don't draw the osd atm
  64     //vf->control(vf,VFCTRL_DRAW_OSD,NULL);
  65     video_out->flip_page();
  66   }
  67 }
  68
  69 static int cmd_filter(mp_cmd_t* cmd, int paused, struct vf_priv_s * priv) {
  70
  71   switch(cmd->id) {
  72   case MP_CMD_MENU : {  // Convert txt cmd from the users into libmenu stuff
  73     char* arg = cmd->args[0].v.s;
  74
  75     if (!priv->current->show && strcmp(arg,"hide"))
  76       priv->current->show = 1;
  77     else if(strcmp(arg,"up") == 0)
  78       menu_read_cmd(priv->current,MENU_CMD_UP);
  79     else if(strcmp(arg,"down") == 0)
  80       menu_read_cmd(priv->current,MENU_CMD_DOWN);
  81     else if(strcmp(arg,"left") == 0)
  82       menu_read_cmd(priv->current,MENU_CMD_LEFT);
  83     else if(strcmp(arg,"right") == 0)
  84       menu_read_cmd(priv->current,MENU_CMD_RIGHT);
  85     else if(strcmp(arg,"ok") == 0)
  86       menu_read_cmd(priv->current,MENU_CMD_OK);
  87     else if(strcmp(arg,"cancel") == 0)
  88       menu_read_cmd(priv->current,MENU_CMD_CANCEL);
  89     else if(strcmp(arg,"home") == 0)
  90       menu_read_cmd(priv->current,MENU_CMD_HOME);
  91     else if(strcmp(arg,"end") == 0)
  92       menu_read_cmd(priv->current,MENU_CMD_END);
  93     else if(strcmp(arg,"pageup") == 0)
  94       menu_read_cmd(priv->current,MENU_CMD_PAGE_UP);
  95     else if(strcmp(arg,"pagedown") == 0)
  96       menu_read_cmd(priv->current,MENU_CMD_PAGE_DOWN);
  97     else if(strcmp(arg,"click") == 0)
  98       menu_read_cmd(priv->current,MENU_CMD_CLICK);
  99     else if(strcmp(arg,"hide") == 0 || strcmp(arg,"toggle") == 0)
 100       priv->current->show = 0;
 101     else
 102       mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_UnknownMenuCommand,arg);
 103     return 1;
 104   }
 105   case MP_CMD_SET_MENU : {
 106     char* menu = cmd->args[0].v.s;
 107     menu_t* l = priv->current;
 108     priv->current = menu_open(menu);
 109     if(!priv->current) {
 110       mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_FailedToOpenMenu,menu);
 111       priv->current = l;
 112       priv->current->show = 0;
 113     } else {
 114       priv->current->show = 1;
 115       priv->current->parent = l;
 116     }
 117     return 1;
 118   }
 119   }
 120   return 0;
 121 }
 122
 123 static void get_image(struct vf_instance *vf, mp_image_t *mpi){
 124   mp_image_t *dmpi;
 125
 126   if(mpi->type == MP_IMGTYPE_TEMP && (!(mpi->flags&MP_IMGFLAG_PRESERVE)) ) {
 127     dmpi = vf_get_image(vf->next,mpi->imgfmt,mpi->type, mpi->flags, mpi->w, mpi->h);
 128     memcpy(mpi->planes,dmpi->planes,MP_MAX_PLANES*sizeof(unsigned char*));
 129     memcpy(mpi->stride,dmpi->stride,MP_MAX_PLANES*sizeof(unsigned int));
 130     mpi->flags|=MP_IMGFLAG_DIRECT;
 131     mpi->priv=(void*)dmpi;
 132     return;
 133   }
 134 }
 135
 136 static int key_cb(int code) {
 137   return menu_read_key(st_priv->current,code);
 138 }
 139
 140 static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
 141   mp_image_t *dmpi = NULL;
 142
 143   if (vf->priv->passthrough) {
 144     dmpi=vf_get_image(vf->next, IMGFMT_MPEGPES, MP_IMGTYPE_EXPORT,
 145                       0, mpi->w, mpi->h);
 146     dmpi->planes[0]=mpi->planes[0];
 147     return vf_next_put_image(vf,dmpi, pts);
 148   }
 149
 150   // Close all menu who requested it
 151   while(vf->priv->current->cl && vf->priv->current != vf->priv->root) {
 152     menu_t* m = vf->priv->current;
 153     vf->priv->current = m->parent ? m->parent :  vf->priv->root;
 154     menu_close(m);
 155   }
 156
 157     // Try to capture the last frame before pause, or fallback to use
 158     // last captured frame.
 159     if(pause_mpi && (mpi->w != pause_mpi->w || mpi->h != pause_mpi->h ||
 160                      mpi->imgfmt != pause_mpi->imgfmt)) {
 161       free_mp_image(pause_mpi);
 162       pause_mpi = NULL;
 163     }
 164   if (!pause_mpi) {
 165     pause_mpi = alloc_mpi(mpi->w,mpi->h,mpi->imgfmt);
 166     copy_mpi(pause_mpi,mpi);
 167   }
 168   else if (mpctx_get_osd_function(vf->priv->root->ctx) == OSD_PAUSE)
 169     copy_mpi(pause_mpi,mpi);
 170
 171   if (vf->priv->current->show) {
 172     if (!mp_input_key_cb)
 173       mp_input_key_cb = key_cb;
 174
 175   if(mpi->flags&MP_IMGFLAG_DIRECT)
 176     dmpi = mpi->priv;
 177   else {
 178     dmpi = vf_get_image(vf->next,mpi->imgfmt,
 179                         MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
 180                         mpi->w,mpi->h);
 181     copy_mpi(dmpi,mpi);
 182   }
 183   menu_draw(vf->priv->current,dmpi);
 184
 185   } else {
 186     if(mp_input_key_cb)
 187       mp_input_key_cb = NULL;
 188
 189     if(mpi->flags&MP_IMGFLAG_DIRECT)
 190       dmpi = mpi->priv;
 191     else {
 192       dmpi = vf_get_image(vf->next,mpi->imgfmt,
 193                           MP_IMGTYPE_EXPORT, MP_IMGFLAG_ACCEPT_STRIDE,
 194                           mpi->w,mpi->h);
 195
 196       dmpi->stride[0] = mpi->stride[0];
 197       dmpi->stride[1] = mpi->stride[1];
 198       dmpi->stride[2] = mpi->stride[2];
 199       dmpi->planes[0] = mpi->planes[0];
 200       dmpi->planes[1] = mpi->planes[1];
 201       dmpi->planes[2] = mpi->planes[2];
 202       dmpi->priv      = mpi->priv;
 203     }
 204   }
 205   return vf_next_put_image(vf,dmpi, pts);
 206 }
 207
 208 static void uninit(vf_instance_t *vf) {
 209      vf->priv=NULL;
 210      if(pause_mpi) {
 211        free_mp_image(pause_mpi);
 212        pause_mpi = NULL;
 213      }
 214 }
 215
 216 static int config(struct vf_instance *vf, int width, int height, int d_width, int d_height,
 217                   unsigned int flags, unsigned int outfmt) {
 218 #ifdef CONFIG_FREETYPE
 219   // here is the right place to get screen dimensions
 220   if (force_load_font) {
 221     force_load_font = 0;
 222     load_font_ft(width,height,&vo_font,font_name,osd_font_scale_factor);
 223   }
 224 #endif
 225   if(outfmt == IMGFMT_MPEGPES)
 226     vf->priv->passthrough = 1;
 227   return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
 228 }
 229
 230 static int query_format(struct vf_instance *vf, unsigned int fmt){
 231   return vf_next_query_format(vf,fmt);
 232 }
 233
 234 static int open_vf(vf_instance_t *vf, char* args){
 235   if(!st_priv) {
 236     st_priv = calloc(1,sizeof(struct vf_priv_s));
 237     st_priv->root = st_priv->current = menu_open(args);
 238     if(!st_priv->current) {
 239       free(st_priv);
 240       st_priv = NULL;
 241       return 0;
 242     }
 243     st_priv->root->show = menu_startup;
 244     mp_input_add_cmd_filter((mp_input_cmd_filter)cmd_filter,st_priv);
 245   }
 246
 247   vf->config = config;
 248   vf->query_format=query_format;
 249   vf->put_image = put_image;
 250   vf->get_image = get_image;
 251   vf->uninit=uninit;
 252   vf->priv=st_priv;
 253   go2pause=0;
 254
 255   return 1;
 256 }
 257
 258
 259 vf_info_t vf_info_menu  = {
 260   "Internal filter for libmenu",
 261   "menu",
 262   "Albeu",
 263   "",
 264   open_vf,
 265   NULL
 266 };