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
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25
  26 #include "mplayer.h"
  27 #include "mp_msg.h"
  28
  29 #include "libmpcodecs/img_format.h"
  30 #include "libmpcodecs/mp_image.h"
  31 #include "libmpcodecs/vf.h"
  32
  33 #include "libvo/fastmemcpy.h"
  34 #include "libvo/video_out.h"
  35 #include "libvo/font_load.h"
  36 #include "libvo/sub.h"
  37 #include "input/input.h"
  38 #include "m_struct.h"
  39 #include "menu.h"
  40 #include "access_mpcontext.h"
  41
  42
  43 static struct vf_priv_s* st_priv = NULL;
  44
  45 static mp_image_t* pause_mpi = NULL;
  46 static int go2pause = 0;
  47 /// if nonzero display menu at startup
  48 int menu_startup = 0;
  49
  50 struct vf_priv_s {
  51   menu_t* root;
  52   menu_t* current;
  53   int passthrough;
  54 };
  55
  56 static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts);
  57
  58 void vf_menu_pause_update(struct vf_instance *vf) {
  59   const struct vo *video_out = mpctx_get_video_out(vf->priv->current->ctx);
  60   if(pause_mpi) {
  61     put_image(vf,pause_mpi, MP_NOPTS_VALUE);
  62     // Don't draw the osd atm
  63     //vf->control(vf,VFCTRL_DRAW_OSD,NULL);
  64     vo_flip_page(video_out, 0, -1);
  65   }
  66 }
  67
  68 static int cmd_filter(mp_cmd_t* cmd, void *ctx)
  69 {
  70     struct vf_priv_s *priv = ctx;
  71
  72   switch(cmd->id) {
  73   case MP_CMD_MENU : {  // Convert txt cmd from the users into libmenu stuff
  74     char* arg = cmd->args[0].v.s;
  75
  76     if (!priv->current->show && strcmp(arg,"hide"))
  77       priv->current->show = 1;
  78     else if(strcmp(arg,"up") == 0)
  79       menu_read_cmd(priv->current,MENU_CMD_UP);
  80     else if(strcmp(arg,"down") == 0)
  81       menu_read_cmd(priv->current,MENU_CMD_DOWN);
  82     else if(strcmp(arg,"left") == 0)
  83       menu_read_cmd(priv->current,MENU_CMD_LEFT);
  84     else if(strcmp(arg,"right") == 0)
  85       menu_read_cmd(priv->current,MENU_CMD_RIGHT);
  86     else if(strcmp(arg,"ok") == 0)
  87       menu_read_cmd(priv->current,MENU_CMD_OK);
  88     else if(strcmp(arg,"cancel") == 0)
  89       menu_read_cmd(priv->current,MENU_CMD_CANCEL);
  90     else if(strcmp(arg,"home") == 0)
  91       menu_read_cmd(priv->current,MENU_CMD_HOME);
  92     else if(strcmp(arg,"end") == 0)
  93       menu_read_cmd(priv->current,MENU_CMD_END);
  94     else if(strcmp(arg,"pageup") == 0)
  95       menu_read_cmd(priv->current,MENU_CMD_PAGE_UP);
  96     else if(strcmp(arg,"pagedown") == 0)
  97       menu_read_cmd(priv->current,MENU_CMD_PAGE_DOWN);
  98     else if(strcmp(arg,"click") == 0)
  99       menu_read_cmd(priv->current,MENU_CMD_CLICK);
 100     else if(strcmp(arg,"hide") == 0 || strcmp(arg,"toggle") == 0)
 101       priv->current->show = 0;
 102     else
 103       mp_tmsg(MSGT_GLOBAL,MSGL_WARN,"[MENU] Unknown command: '%s'.\n",arg);
 104     return 1;
 105   }
 106   case MP_CMD_SET_MENU : {
 107     char* menu = cmd->args[0].v.s;
 108     menu_t* l = priv->current;
 109     priv->current = menu_open(menu);
 110     if(!priv->current) {
 111       mp_tmsg(MSGT_GLOBAL,MSGL_WARN,"[MENU] Failed to open menu: '%s'.\n",menu);
 112       priv->current = l;
 113       priv->current->show = 0;
 114     } else {
 115       priv->current->show = 1;
 116       priv->current->parent = l;
 117     }
 118     return 1;
 119   }
 120   }
 121   return 0;
 122 }
 123
 124 static void get_image(struct vf_instance *vf, mp_image_t *mpi){
 125   mp_image_t *dmpi;
 126
 127   if(mpi->type == MP_IMGTYPE_TEMP && (!(mpi->flags&MP_IMGFLAG_PRESERVE)) ) {
 128     dmpi = vf_get_image(vf->next,mpi->imgfmt,mpi->type, mpi->flags, mpi->w, mpi->h);
 129     memcpy(mpi->planes,dmpi->planes,MP_MAX_PLANES*sizeof(unsigned char*));
 130     memcpy(mpi->stride,dmpi->stride,MP_MAX_PLANES*sizeof(unsigned int));
 131     mpi->flags|=MP_IMGFLAG_DIRECT;
 132     mpi->priv=(void*)dmpi;
 133     return;
 134   }
 135 }
 136
 137 static int key_cb(int code) {
 138   return menu_read_key(st_priv->current,code);
 139 }
 140
 141 static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
 142   mp_image_t *dmpi = NULL;
 143
 144   if (vf->priv->passthrough) {
 145     dmpi=vf_get_image(vf->next, IMGFMT_MPEGPES, MP_IMGTYPE_EXPORT,
 146                       0, mpi->w, mpi->h);
 147     dmpi->planes[0]=mpi->planes[0];
 148     return vf_next_put_image(vf,dmpi, pts);
 149   }
 150
 151   // Close all menu who requested it
 152   while(vf->priv->current->cl && vf->priv->current != vf->priv->root) {
 153     menu_t* m = vf->priv->current;
 154     vf->priv->current = m->parent ? m->parent :  vf->priv->root;
 155     menu_close(m);
 156   }
 157
 158     // Try to capture the last frame before pause, or fallback to use
 159     // last captured frame.
 160     if(pause_mpi && (mpi->w != pause_mpi->w || mpi->h != pause_mpi->h ||
 161                      mpi->imgfmt != pause_mpi->imgfmt)) {
 162       free_mp_image(pause_mpi);
 163       pause_mpi = NULL;
 164     }
 165   if (!pause_mpi) {
 166     pause_mpi = alloc_mpi(mpi->w,mpi->h,mpi->imgfmt);
 167     copy_mpi(pause_mpi,mpi);
 168   }
 169   else if (mpctx_get_osd_function(vf->priv->root->ctx) == OSD_PAUSE)
 170     copy_mpi(pause_mpi,mpi);
 171
 172   if (vf->priv->current->show) {
 173     if (!mp_input_key_cb)
 174       mp_input_key_cb = key_cb;
 175
 176   if(mpi->flags&MP_IMGFLAG_DIRECT)
 177     dmpi = mpi->priv;
 178   else {
 179     dmpi = vf_get_image(vf->next,mpi->imgfmt,
 180                         MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
 181                         mpi->w,mpi->h);
 182     copy_mpi(dmpi,mpi);
 183   }
 184   menu_draw(vf->priv->current,dmpi);
 185
 186   } else {
 187     if(mp_input_key_cb)
 188       mp_input_key_cb = NULL;
 189
 190     if(mpi->flags&MP_IMGFLAG_DIRECT)
 191       dmpi = mpi->priv;
 192     else {
 193       dmpi = vf_get_image(vf->next,mpi->imgfmt,
 194                           MP_IMGTYPE_EXPORT, MP_IMGFLAG_ACCEPT_STRIDE,
 195                           mpi->w,mpi->h);
 196
 197       dmpi->stride[0] = mpi->stride[0];
 198       dmpi->stride[1] = mpi->stride[1];
 199       dmpi->stride[2] = mpi->stride[2];
 200       dmpi->planes[0] = mpi->planes[0];
 201       dmpi->planes[1] = mpi->planes[1];
 202       dmpi->planes[2] = mpi->planes[2];
 203       dmpi->priv      = mpi->priv;
 204     }
 205   }
 206   return vf_next_put_image(vf,dmpi, pts);
 207 }
 208
 209 static void uninit(vf_instance_t *vf) {
 210      vf->priv=NULL;
 211      if(pause_mpi) {
 212        free_mp_image(pause_mpi);
 213        pause_mpi = NULL;
 214      }
 215 }
 216
 217 static int config(struct vf_instance *vf, int width, int height, int d_width, int d_height,
 218                   unsigned int flags, unsigned int outfmt) {
 219 #ifdef CONFIG_FREETYPE
 220   // here is the right place to get screen dimensions
 221   if (force_load_font) {
 222     force_load_font = 0;
 223     load_font_ft(width,height,&vo_font,font_name,osd_font_scale_factor);
 224   }
 225 #endif
 226   if(outfmt == IMGFMT_MPEGPES)
 227     vf->priv->passthrough = 1;
 228   return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
 229 }
 230
 231 static int query_format(struct vf_instance *vf, unsigned int fmt){
 232   return vf_next_query_format(vf, fmt);
 233 }
 234
 235 static int open_vf(vf_instance_t *vf, char* args){
 236   if(!st_priv) {
 237     st_priv = calloc(1,sizeof(struct vf_priv_s));
 238     st_priv->root = st_priv->current = menu_open(args);
 239     if(!st_priv->current) {
 240       free(st_priv);
 241       st_priv = NULL;
 242       return 0;
 243     }
 244     st_priv->root->show = menu_startup;
 245     mp_input_add_cmd_filter(cmd_filter,st_priv);
 246   }
 247
 248   vf->config = config;
 249   vf->query_format=query_format;
 250   vf->put_image = put_image;
 251   vf->get_image = get_image;
 252   vf->uninit=uninit;
 253   vf->priv=st_priv;
 254   go2pause=0;
 255
 256   return 1;
 257 }
 258
 259
 260 const vf_info_t vf_info_menu  = {
 261   "Internal filter for libmenu",
 262   "menu",
 263   "Albeu",
 264   "",
 265   open_vf,
 266   NULL
 267 };