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 #if HAVE_MALLOC_H
  28 #include <malloc.h>
  29 #endif
  30
  31 #include "mplayer.h"
  32 #include "mp_msg.h"
  33
  34 #include "libmpcodecs/img_format.h"
  35 #include "libmpcodecs/mp_image.h"
  36 #include "libmpcodecs/vf.h"
  37
  38 #include "libvo/fastmemcpy.h"
  39 #include "libvo/video_out.h"
  40 #include "libvo/font_load.h"
  41 #include "libvo/sub.h"
  42 #include "input/input.h"
  43 #include "m_struct.h"
  44 #include "menu.h"
  45 #include "access_mpcontext.h"
  46
  47
  48 static struct vf_priv_s* st_priv = NULL;
  49
  50 static mp_image_t* pause_mpi = NULL;
  51 static int go2pause = 0;
  52 /// if nonzero display menu at startup
  53 int menu_startup = 0;
  54
  55 struct vf_priv_s {
  56   menu_t* root;
  57   menu_t* current;
  58   int passthrough;
  59 };
  60
  61 static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts);
  62
  63 void vf_menu_pause_update(struct vf_instance_s* vf) {
  64   const vo_functions_t *video_out = mpctx_get_video_out(vf->priv->current->ctx);
  65   if(pause_mpi) {
  66     put_image(vf,pause_mpi, MP_NOPTS_VALUE);
  67     // Don't draw the osd atm
  68     //vf->control(vf,VFCTRL_DRAW_OSD,NULL);
  69     video_out->flip_page();
  70   }
  71 }
  72
  73 static int cmd_filter(mp_cmd_t* cmd, int paused, struct vf_priv_s * priv) {
  74
  75   switch(cmd->id) {
  76   case MP_CMD_MENU : {  // Convert txt cmd from the users into libmenu stuff
  77     char* arg = cmd->args[0].v.s;
  78
  79     if (!priv->current->show && strcmp(arg,"hide"))
  80       priv->current->show = 1;
  81     else if(strcmp(arg,"up") == 0)
  82       menu_read_cmd(priv->current,MENU_CMD_UP);
  83     else if(strcmp(arg,"down") == 0)
  84       menu_read_cmd(priv->current,MENU_CMD_DOWN);
  85     else if(strcmp(arg,"left") == 0)
  86       menu_read_cmd(priv->current,MENU_CMD_LEFT);
  87     else if(strcmp(arg,"right") == 0)
  88       menu_read_cmd(priv->current,MENU_CMD_RIGHT);
  89     else if(strcmp(arg,"ok") == 0)
  90       menu_read_cmd(priv->current,MENU_CMD_OK);
  91     else if(strcmp(arg,"cancel") == 0)
  92       menu_read_cmd(priv->current,MENU_CMD_CANCEL);
  93     else if(strcmp(arg,"home") == 0)
  94       menu_read_cmd(priv->current,MENU_CMD_HOME);
  95     else if(strcmp(arg,"end") == 0)
  96       menu_read_cmd(priv->current,MENU_CMD_END);
  97     else if(strcmp(arg,"pageup") == 0)
  98       menu_read_cmd(priv->current,MENU_CMD_PAGE_UP);
  99     else if(strcmp(arg,"pagedown") == 0)
 100       menu_read_cmd(priv->current,MENU_CMD_PAGE_DOWN);
 101     else if(strcmp(arg,"click") == 0)
 102       menu_read_cmd(priv->current,MENU_CMD_CLICK);
 103     else if(strcmp(arg,"hide") == 0 || strcmp(arg,"toggle") == 0)
 104       priv->current->show = 0;
 105     else
 106       mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_UnknownMenuCommand,arg);
 107     return 1;
 108   }
 109   case MP_CMD_SET_MENU : {
 110     char* menu = cmd->args[0].v.s;
 111     menu_t* l = priv->current;
 112     priv->current = menu_open(menu);
 113     if(!priv->current) {
 114       mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_FailedToOpenMenu,menu);
 115       priv->current = l;
 116       priv->current->show = 0;
 117     } else {
 118       priv->current->show = 1;
 119       priv->current->parent = l;
 120     }
 121     return 1;
 122   }
 123   }
 124   return 0;
 125 }
 126
 127 static void get_image(struct vf_instance_s* vf, mp_image_t *mpi){
 128   mp_image_t *dmpi;
 129
 130   if(mpi->type == MP_IMGTYPE_TEMP && (!(mpi->flags&MP_IMGFLAG_PRESERVE)) ) {
 131     dmpi = vf_get_image(vf->next,mpi->imgfmt,mpi->type, mpi->flags, mpi->w, mpi->h);
 132     memcpy(mpi->planes,dmpi->planes,MP_MAX_PLANES*sizeof(unsigned char*));
 133     memcpy(mpi->stride,dmpi->stride,MP_MAX_PLANES*sizeof(unsigned int));
 134     mpi->flags|=MP_IMGFLAG_DIRECT;
 135     mpi->priv=(void*)dmpi;
 136     return;
 137   }
 138 }
 139
 140 static int key_cb(int code) {
 141   return menu_read_key(st_priv->current,code);
 142 }
 143
 144 static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts){
 145   mp_image_t *dmpi = NULL;
 146
 147   if (vf->priv->passthrough) {
 148     dmpi=vf_get_image(vf->next, IMGFMT_MPEGPES, MP_IMGTYPE_EXPORT,
 149                       0, mpi->w, mpi->h);
 150     dmpi->planes[0]=mpi->planes[0];
 151     return vf_next_put_image(vf,dmpi, pts);
 152   }
 153
 154   // Close all menu who requested it
 155   while(vf->priv->current->cl && vf->priv->current != vf->priv->root) {
 156     menu_t* m = vf->priv->current;
 157     vf->priv->current = m->parent ? m->parent :  vf->priv->root;
 158     menu_close(m);
 159   }
 160
 161     // Try to capture the last frame before pause, or fallback to use
 162     // last captured frame.
 163     if(pause_mpi && (mpi->w != pause_mpi->w || mpi->h != pause_mpi->h ||
 164                      mpi->imgfmt != pause_mpi->imgfmt)) {
 165       free_mp_image(pause_mpi);
 166       pause_mpi = NULL;
 167     }
 168   if (!pause_mpi) {
 169     pause_mpi = alloc_mpi(mpi->w,mpi->h,mpi->imgfmt);
 170     copy_mpi(pause_mpi,mpi);
 171   }
 172   else if (mpctx_get_osd_function(vf->priv->root->ctx) == OSD_PAUSE)
 173     copy_mpi(pause_mpi,mpi);
 174
 175   if (vf->priv->current->show) {
 176     if (!mp_input_key_cb)
 177       mp_input_key_cb = key_cb;
 178
 179   if(mpi->flags&MP_IMGFLAG_DIRECT)
 180     dmpi = mpi->priv;
 181   else {
 182     dmpi = vf_get_image(vf->next,mpi->imgfmt,
 183                         MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
 184                         mpi->w,mpi->h);
 185     copy_mpi(dmpi,mpi);
 186   }
 187   menu_draw(vf->priv->current,dmpi);
 188
 189   } else {
 190     if(mp_input_key_cb)
 191       mp_input_key_cb = NULL;
 192
 193     if(mpi->flags&MP_IMGFLAG_DIRECT)
 194       dmpi = mpi->priv;
 195     else {
 196       dmpi = vf_get_image(vf->next,mpi->imgfmt,
 197                           MP_IMGTYPE_EXPORT, MP_IMGFLAG_ACCEPT_STRIDE,
 198                           mpi->w,mpi->h);
 199
 200       dmpi->stride[0] = mpi->stride[0];
 201       dmpi->stride[1] = mpi->stride[1];
 202       dmpi->stride[2] = mpi->stride[2];
 203       dmpi->planes[0] = mpi->planes[0];
 204       dmpi->planes[1] = mpi->planes[1];
 205       dmpi->planes[2] = mpi->planes[2];
 206       dmpi->priv      = mpi->priv;
 207     }
 208   }
 209   return vf_next_put_image(vf,dmpi, pts);
 210 }
 211
 212 static void uninit(vf_instance_t *vf) {
 213      vf->priv=NULL;
 214      if(pause_mpi) {
 215        free_mp_image(pause_mpi);
 216        pause_mpi = NULL;
 217      }
 218 }
 219
 220 static int config(struct vf_instance_s* vf, int width, int height, int d_width, int d_height,
 221                   unsigned int flags, unsigned int outfmt) {
 222 #ifdef CONFIG_FREETYPE
 223   // here is the right place to get screen dimensions
 224   if (force_load_font) {
 225     force_load_font = 0;
 226     load_font_ft(width,height,&vo_font,font_name,osd_font_scale_factor);
 227   }
 228 #endif
 229   if(outfmt == IMGFMT_MPEGPES)
 230     vf->priv->passthrough = 1;
 231   return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
 232 }
 233
 234 static int query_format(struct vf_instance_s* vf, unsigned int fmt){
 235   return vf_next_query_format(vf,fmt);
 236 }
 237
 238 static int open_vf(vf_instance_t *vf, char* args){
 239   if(!st_priv) {
 240     st_priv = calloc(1,sizeof(struct vf_priv_s));
 241     st_priv->root = st_priv->current = menu_open(args);
 242     if(!st_priv->current) {
 243       free(st_priv);
 244       st_priv = NULL;
 245       return 0;
 246     }
 247     st_priv->root->show = menu_startup;
 248     mp_input_add_cmd_filter((mp_input_cmd_filter)cmd_filter,st_priv);
 249   }
 250
 251   vf->config = config;
 252   vf->query_format=query_format;
 253   vf->put_image = put_image;
 254   vf->get_image = get_image;
 255   vf->uninit=uninit;
 256   vf->priv=st_priv;
 257   go2pause=0;
 258
 259   return 1;
 260 }
 261
 262
 263 vf_info_t vf_info_menu  = {
 264   "Internal filter for libmenu",
 265   "menu",
 266   "Albeu",
 267   "",
 268   open_vf,
 269   NULL
 270 };
 271
 272
 273