git.sesse.net Git - vlc/blob - modules/video_filter/puzzle.c

   1 /*****************************************************************************
   2  * puzzle.c : Puzzle game
   3  *****************************************************************************
   4  * Copyright (C) 2005-2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Antoine Cellerier <dionoea -at- videolan -dot- org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27 #include <stdlib.h>                                      /* malloc(), free() */
  28 #include <string.h>
  29
  30 #include <vlc/vlc.h>
  31 #include <vlc/vout.h>
  32
  33 #include <math.h>
  34
  35 #include "filter_common.h"
  36 #include "vlc_image.h"
  37 #include "vlc_input.h"
  38 #include "vlc_playlist.h"
  39
  40 /*****************************************************************************
  41  * Local prototypes
  42  *****************************************************************************/
  43 static int  Create    ( vlc_object_t * );
  44 static void Destroy   ( vlc_object_t * );
  45
  46 static int  Init      ( vout_thread_t * );
  47 static void End       ( vout_thread_t * );
  48 static void Render    ( vout_thread_t *, picture_t * );
  49
  50 static int  SendEvents   ( vlc_object_t *, char const *,
  51                            vlc_value_t, vlc_value_t, void * );
  52 static int  MouseEvent   ( vlc_object_t *, char const *,
  53                            vlc_value_t, vlc_value_t, void * );
  54
  55 /*****************************************************************************
  56  * Module descriptor
  57  *****************************************************************************/
  58
  59 #define ROWS_TEXT N_("Number of puzzle rows")
  60 #define ROWS_LONGTEXT N_("Number of puzzle rows")
  61 #define COLS_TEXT N_("Number of puzzle columns")
  62 #define COLS_LONGTEXT N_("Number of puzzle columns")
  63 #define BLACKSLOT_TEXT N_("Make one tile a black slot")
  64 #define BLACKSLOT_LONGTEXT N_("Make one slot black. Other tiles can only be swapped with the black slot.")
  65
  66 vlc_module_begin();
  67     set_description( _("Puzzle interactive game video filter") );
  68     set_shortname( _( "Puzzle" ));
  69     set_capability( "video filter", 0 );
  70     set_category( CAT_VIDEO );
  71     set_subcategory( SUBCAT_VIDEO_VFILTER );
  72
  73     add_integer_with_range( "puzzle-rows", 4, 1, 128, NULL,
  74                             ROWS_TEXT, ROWS_LONGTEXT, VLC_FALSE );
  75     add_integer_with_range( "puzzle-cols", 4, 1, 128, NULL,
  76                             COLS_TEXT, COLS_LONGTEXT, VLC_FALSE );
  77     add_bool( "puzzle-black-slot", 0, NULL,
  78               BLACKSLOT_TEXT, BLACKSLOT_LONGTEXT, VLC_FALSE );
  79
  80     set_callbacks( Create, Destroy );
  81 vlc_module_end();
  82
  83 /*****************************************************************************
  84  * vout_sys_t: Magnify video output method descriptor
  85  *****************************************************************************/
  86 struct vout_sys_t
  87 {
  88     vout_thread_t *p_vout;
  89
  90     image_handler_t *p_image;
  91
  92     int i_cols;
  93     int i_rows;
  94     int *pi_order;
  95     int i_selected;
  96     vlc_bool_t b_finished;
  97
  98     vlc_bool_t b_blackslot;
  99 };
 100
 101 /*****************************************************************************
 102  * Control: control facility for the vout (forwards to child vout)
 103  *****************************************************************************/
 104 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
 105 {
 106     return vout_vaControl( p_vout->p_sys->p_vout, i_query, args );
 107 }
 108
 109 /*****************************************************************************
 110  * Misc stuff...
 111  *****************************************************************************/
 112 static vlc_bool_t finished( vout_sys_t *p_sys )
 113 {
 114     int i;
 115     for( i = 0; i < p_sys->i_cols * p_sys->i_rows; i++ )
 116     {
 117         if( i != p_sys->pi_order[i] ) return VLC_FALSE;
 118     }
 119     return VLC_TRUE;
 120 }
 121 static void shuffle( vout_sys_t *p_sys )
 122 {
 123     int i, c;
 124     free( p_sys->pi_order );
 125     p_sys->pi_order = malloc( p_sys->i_cols * p_sys->i_rows * sizeof( int ) );
 126     do
 127     {
 128         for( i = 0; i < p_sys->i_cols * p_sys->i_rows; i++ )
 129         {
 130             p_sys->pi_order[i] = -1;
 131         }
 132         i = 0;
 133         for( c = 0; c < p_sys->i_cols * p_sys->i_rows; )
 134         {
 135             i = rand()%( p_sys->i_cols * p_sys->i_rows );
 136             if( p_sys->pi_order[i] == -1 )
 137             {
 138                 p_sys->pi_order[i] = c;
 139                 c++;
 140             }
 141         }
 142         p_sys->b_finished = finished( p_sys );
 143     } while( p_sys->b_finished == VLC_TRUE );
 144
 145     if( p_sys->b_blackslot == VLC_TRUE )
 146     {
 147         for( i = 0; i < p_sys->i_cols * p_sys->i_rows; i++ )
 148         {
 149             if( p_sys->pi_order[i] ==
 150                 ( p_sys->i_cols - 1 ) * p_sys->i_rows + 1 )
 151             {
 152                 p_sys->i_selected = i;
 153                 break;
 154             }
 155         }
 156     }
 157     else
 158     {
 159         p_sys->i_selected = -1;
 160     }
 161     printf( "selected: %d\n", p_sys->i_selected );
 162 }
 163
 164 /*****************************************************************************
 165  * Create: allocates Magnify video thread output method
 166  *****************************************************************************/
 167 static int Create( vlc_object_t *p_this )
 168 {
 169     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 170
 171     /* Allocate structure */
 172     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 173     if( p_vout->p_sys == NULL )
 174     {
 175         msg_Err( p_vout, "out of memory" );
 176         return VLC_ENOMEM;
 177     }
 178
 179     p_vout->p_sys->p_image = image_HandlerCreate( p_vout );
 180
 181     p_vout->p_sys->i_rows = config_GetInt( p_vout, "puzzle-rows" );
 182     p_vout->p_sys->i_cols = config_GetInt( p_vout, "puzzle-cols" );
 183     p_vout->p_sys->b_blackslot = config_GetInt( p_vout, "puzzle-black-slot" );
 184
 185     p_vout->p_sys->pi_order = NULL;
 186     shuffle( p_vout->p_sys );
 187
 188     p_vout->pf_init = Init;
 189     p_vout->pf_end = End;
 190     p_vout->pf_manage = NULL;
 191     p_vout->pf_render = Render;
 192     p_vout->pf_display = NULL;
 193     p_vout->pf_control = Control;
 194
 195     return VLC_SUCCESS;
 196 }
 197
 198 /*****************************************************************************
 199  * Init: initialize Magnify video thread output method
 200  *****************************************************************************/
 201 static int Init( vout_thread_t *p_vout )
 202 {
 203     int i_index;
 204     picture_t *p_pic;
 205     video_format_t fmt = {0};
 206
 207     I_OUTPUTPICTURES = 0;
 208
 209     /* Initialize the output structure */
 210     p_vout->output.i_chroma = p_vout->render.i_chroma;
 211     p_vout->output.i_width  = p_vout->render.i_width;
 212     p_vout->output.i_height = p_vout->render.i_height;
 213     p_vout->output.i_aspect = p_vout->render.i_aspect;
 214
 215     p_vout->fmt_out = p_vout->fmt_in;
 216     fmt = p_vout->fmt_out;
 217
 218     /* Try to open the real video output */
 219     msg_Dbg( p_vout, "spawning the real video output" );
 220
 221     p_vout->p_sys->p_vout = vout_Create( p_vout, &fmt );
 222
 223     /* Everything failed */
 224     if( p_vout->p_sys->p_vout == NULL )
 225     {
 226         msg_Err( p_vout, "cannot open vout, aborting" );
 227         return VLC_EGENERIC;
 228     }
 229
 230     var_AddCallback( p_vout->p_sys->p_vout, "mouse-x", MouseEvent, p_vout );
 231     var_AddCallback( p_vout->p_sys->p_vout, "mouse-y", MouseEvent, p_vout );
 232     var_AddCallback( p_vout->p_sys->p_vout, "mouse-clicked",
 233                      MouseEvent, p_vout);
 234
 235     ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
 236     ADD_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
 237     ADD_PARENT_CALLBACKS( SendEventsToChild );
 238
 239     return VLC_SUCCESS;
 240 }
 241
 242 /*****************************************************************************
 243  * End: terminate Magnify video thread output method
 244  *****************************************************************************/
 245 static void End( vout_thread_t *p_vout )
 246 {
 247     int i_index;
 248
 249     /* Free the fake output buffers we allocated */
 250     for( i_index = I_OUTPUTPICTURES ; i_index ; )
 251     {
 252         i_index--;
 253         free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
 254     }
 255
 256     var_DelCallback( p_vout->p_sys->p_vout, "mouse-x", MouseEvent, p_vout);
 257     var_DelCallback( p_vout->p_sys->p_vout, "mouse-y", MouseEvent, p_vout);
 258     var_DelCallback( p_vout->p_sys->p_vout, "mouse-clicked", MouseEvent, p_vout);
 259 }
 260
 261 /*****************************************************************************
 262  * Destroy: destroy Magnify video thread output method
 263  *****************************************************************************/
 264 static void Destroy( vlc_object_t *p_this )
 265 {
 266     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 267
 268     if( p_vout->p_sys->p_vout )
 269     {
 270         DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
 271         vlc_object_detach( p_vout->p_sys->p_vout );
 272         vout_Destroy( p_vout->p_sys->p_vout );
 273     }
 274
 275     image_HandlerDelete( p_vout->p_sys->p_image );
 276     free( p_vout->p_sys->pi_order );
 277
 278     DEL_PARENT_CALLBACKS( SendEventsToChild );
 279
 280     free( p_vout->p_sys );
 281 }
 282
 283 /*****************************************************************************
 284  * Render: displays previously rendered output
 285  *****************************************************************************/
 286 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
 287 {
 288     picture_t *p_outpic;
 289
 290     //video_format_t fmt_out = {0};
 291     //picture_t *p_converted;
 292
 293     int i_plane;
 294
 295     int i_rows = p_vout->p_sys->i_rows;
 296     int i_cols = p_vout->p_sys->i_cols;
 297
 298     /* This is a new frame. Get a structure from the video_output. */
 299     while( ( p_outpic = vout_CreatePicture( p_vout->p_sys->p_vout, 0, 0, 0 ) )
 300               == NULL )
 301     {
 302         if( p_vout->b_die || p_vout->b_error )
 303         {
 304             return;
 305         }
 306         msleep( VOUT_OUTMEM_SLEEP );
 307     }
 308
 309     vout_DatePicture( p_vout->p_sys->p_vout, p_outpic, p_pic->date );
 310
 311     for( i_plane = 0; i_plane < p_outpic->i_planes; i_plane++ )
 312     {
 313         plane_t *p_in = p_pic->p+i_plane;
 314         plane_t *p_out = p_outpic->p+i_plane;
 315         int i_pitch = p_in->i_pitch;
 316         int i;
 317
 318         for( i = 0; i < i_cols * i_rows; i++ )
 319         {
 320             int i_col = i % i_cols;
 321             int i_row = i / i_cols;
 322             int i_ocol = p_vout->p_sys->pi_order[i] % i_cols;
 323             int i_orow = p_vout->p_sys->pi_order[i] / i_cols;
 324             int i_last_row = i_row + 1;
 325             i_orow *= p_in->i_lines / i_rows;
 326             i_row *= p_in->i_lines / i_rows;
 327             i_last_row *= p_in->i_lines / i_rows;
 328
 329             if( p_vout->p_sys->b_blackslot == VLC_TRUE
 330                 && i == p_vout->p_sys->i_selected )
 331             {
 332                 uint8_t color = ( i_plane == Y_PLANE ? 0x0 : 0x80 );
 333                 for( ; i_row < i_last_row; i_row++, i_orow++ )
 334                 {
 335                     memset( p_out->p_pixels + i_row * i_pitch
 336                                             + i_col * i_pitch / i_cols,
 337                             color, i_pitch / i_cols );
 338                 }
 339             }
 340             else
 341             {
 342                 for( ; i_row < i_last_row; i_row++, i_orow++ )
 343                 {
 344                     memcpy( p_out->p_pixels + i_row * i_pitch
 345                                             + i_col * i_pitch / i_cols,
 346                             p_in->p_pixels + i_orow * i_pitch
 347                                            + i_ocol * i_pitch / i_cols,
 348                             i_pitch / i_cols );
 349                 }
 350             }
 351         }
 352     }
 353
 354     if(    p_vout->p_sys->i_selected != -1
 355         && p_vout->p_sys->b_blackslot == VLC_FALSE )
 356     {
 357         plane_t *p_in = p_pic->p+Y_PLANE;
 358         plane_t *p_out = p_outpic->p+Y_PLANE;
 359         int i_pitch = p_in->i_pitch;
 360         int i_col = p_vout->p_sys->i_selected % i_cols;
 361         int i_row = p_vout->p_sys->i_selected / i_cols;
 362         int i_last_row = i_row + 1;
 363         i_row *= p_in->i_lines / i_rows;
 364         i_last_row *= p_in->i_lines / i_rows;
 365         memset( p_out->p_pixels + i_row * i_pitch
 366                                 + i_col * i_pitch / i_cols,
 367                 0xff, i_pitch / i_cols );
 368         for( ; i_row < i_last_row; i_row++ )
 369         {
 370             p_out->p_pixels[   i_row * i_pitch
 371                              + i_col * i_pitch / i_cols ] = 0xff;
 372             p_out->p_pixels[ i_row * i_pitch
 373                              + (i_col+1) * i_pitch / i_cols - 1 ] = 0xff;
 374         }
 375         i_row--;
 376         memset( p_out->p_pixels + i_row * i_pitch
 377                                 + i_col * i_pitch / i_cols,
 378                 0xff, i_pitch / i_cols );
 379     }
 380
 381     vout_DisplayPicture( p_vout->p_sys->p_vout, p_outpic );
 382 }
 383
 384 /*****************************************************************************
 385  * SendEvents: forward mouse and keyboard events to the parent p_vout
 386  *****************************************************************************/
 387 static int SendEvents( vlc_object_t *p_this, char const *psz_var,
 388                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
 389 {
 390     var_Set( (vlc_object_t *)p_data, psz_var, newval );
 391
 392     return VLC_SUCCESS;
 393 }
 394
 395 /*****************************************************************************
 396  * SendEventsToChild: forward events to the child/children vout
 397  *****************************************************************************/
 398 static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
 399                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
 400 {
 401     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 402     var_Set( p_vout->p_sys->p_vout, psz_var, newval );
 403     return VLC_SUCCESS;
 404 }
 405
 406 /*****************************************************************************
 407  * MouseEvent: callback for mouse events
 408  *****************************************************************************/
 409 static int MouseEvent( vlc_object_t *p_this, char const *psz_var,
 410                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
 411 {
 412     vout_thread_t *p_vout = (vout_thread_t*)p_data;
 413     int i_x, i_y;
 414     int i_v;
 415
 416 #define MOUSE_DOWN    1
 417 #define MOUSE_CLICKED 2
 418 #define MOUSE_MOVE_X  4
 419 #define MOUSE_MOVE_Y  8
 420 #define MOUSE_MOVE    12
 421     uint8_t mouse= 0;
 422
 423     int v_h = p_vout->output.i_height;
 424     int v_w = p_vout->output.i_width;
 425     int i_pos;
 426
 427     if( psz_var[6] == 'x' ) mouse |= MOUSE_MOVE_X;
 428     if( psz_var[6] == 'y' ) mouse |= MOUSE_MOVE_Y;
 429     if( psz_var[6] == 'c' ) mouse |= MOUSE_CLICKED;
 430
 431     i_v = var_GetInteger( p_vout->p_sys->p_vout, "mouse-button-down" );
 432     if( i_v & 0x1 ) mouse |= MOUSE_DOWN;
 433     i_y = var_GetInteger( p_vout->p_sys->p_vout, "mouse-y" );
 434     i_x = var_GetInteger( p_vout->p_sys->p_vout, "mouse-x" );
 435
 436     if( mouse & MOUSE_CLICKED )
 437     {
 438         i_pos = p_vout->p_sys->i_cols * ( ( p_vout->p_sys->i_rows * i_y ) / v_h ) + (p_vout->p_sys->i_cols * i_x ) / v_w;
 439         if( p_vout->p_sys->b_finished == VLC_TRUE )
 440         {
 441             shuffle( p_vout->p_sys );
 442         }
 443         else if( p_vout->p_sys->i_selected == -1 )
 444         {
 445             p_vout->p_sys->i_selected = i_pos;
 446         }
 447         else if( p_vout->p_sys->i_selected == i_pos
 448                  && p_vout->p_sys->b_blackslot == VLC_FALSE )
 449         {
 450             p_vout->p_sys->i_selected = -1;
 451         }
 452         else if(    p_vout->p_sys->i_selected == i_pos + 1
 453                  || p_vout->p_sys->i_selected == i_pos - 1
 454                  || p_vout->p_sys->i_selected == i_pos + p_vout->p_sys->i_cols
 455                  || p_vout->p_sys->i_selected == i_pos - p_vout->p_sys->i_cols )
 456         {
 457             int a = p_vout->p_sys->pi_order[ p_vout->p_sys->i_selected ];
 458             p_vout->p_sys->pi_order[ p_vout->p_sys->i_selected ] =
 459                 p_vout->p_sys->pi_order[ i_pos ];
 460             p_vout->p_sys->pi_order[ i_pos ] = a;
 461             if( p_vout->p_sys->b_blackslot == VLC_TRUE )
 462                 p_vout->p_sys->i_selected = i_pos;
 463             else
 464                 p_vout->p_sys->i_selected = -1;
 465
 466             p_vout->p_sys->b_finished = finished( p_vout->p_sys );
 467         }
 468     }
 469     return VLC_SUCCESS;
 470 }