test/dynamicoverlay/overlay-test.c

   1 /*****************************************************************************
   2  * overlay-test.c : test program for the dynamic overlay plugin
   3  *****************************************************************************
   4  * Copyright (C) 2007 the VideoLAN team
   5  * $Id$
   6  *
   7  * Author: Søren Bøg <avacore@videolan.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>
  28 #include <stdio.h>
  29 #include <stdarg.h>
  30 #include <errno.h>
  31 #include <string.h>
  32 #include <math.h>
  33
  34 #include <sys/ipc.h>
  35 #include <sys/shm.h>
  36 #include <unistd.h>
  37
  38 /*****************************************************************************
  39  * Images
  40  *****************************************************************************/
  41
  42 #define WIDTH 128
  43 #define HEIGHT 128
  44
  45 #define TEXT "Hello world!"
  46 #define TEXTSIZE sizeof( TEXT )
  47
  48 char *p_imageRGBA;
  49 char *p_text;
  50
  51 void DataCreate( void ) {
  52     char *p_data = p_imageRGBA;
  53     for( size_t i = 0; i < HEIGHT; ++i ) {
  54         for( size_t j = 0; j < HEIGHT; ++j ) {
  55             *(p_data++) = i * 4 & 0xFF;
  56             *(p_data++) = 0xFF;
  57             *(p_data++) = 0x00;
  58             *(p_data++) = j * 4 & 0xFF;
  59         }
  60     }
  61
  62     memcpy( p_text, TEXT, TEXTSIZE );
  63 }
  64
  65 /*****************************************************************************
  66  * I/O Helpers
  67  *****************************************************************************/
  68
  69 int IsFailure( char *psz_text ) {
  70     return strncmp( psz_text, "SUCCESS:", 8 );
  71 }
  72
  73 void CheckResult( FILE *p_res ) {
  74     char psz_resp[9];
  75
  76     fscanf( p_res, "%8s", &psz_resp );
  77     if( IsFailure( psz_resp ) ) {
  78         printf( " failed\n" );
  79         exit( -1 );
  80     }
  81 }
  82
  83 void CheckedCommand( FILE *p_cmd, FILE *p_res, char *p_format, ... ) {
  84     va_list ap;
  85     va_start( ap, p_format );
  86
  87     vfprintf( p_cmd, p_format, ap );
  88     fflush( p_cmd );
  89     if( p_res != NULL ) {
  90         CheckResult( p_res );
  91     }
  92     va_end( ap );
  93 }
  94
  95 int GenImage( FILE *p_cmd, FILE *p_res ) {
  96     int i_overlay;
  97
  98     printf( "Getting an overlay..." );
  99     CheckedCommand( p_cmd, p_res, "GenImage\n" );
 100     fscanf( p_res, "%d", &i_overlay );
 101     printf( " done. Overlay is %d\n", i_overlay );
 102
 103     return i_overlay;
 104 }
 105
 106 void DeleteImage( FILE *p_cmd, FILE *p_res, int i_overlay ) {
 107     printf( "Removing image..." );
 108     CheckedCommand( p_cmd, p_res, "DeleteImage %d\n", i_overlay );
 109     printf( " done\n" );
 110 }
 111
 112 void StartAtomic( FILE *p_cmd, FILE *p_res ) {
 113     CheckedCommand( p_cmd, p_res, "StartAtomic\n" );
 114 }
 115
 116 void EndAtomic( FILE *p_cmd, FILE *p_res ) {
 117     CheckedCommand( p_cmd, p_res, "EndAtomic\n" );
 118 }
 119
 120 void DataSharedMem( FILE *p_cmd, FILE *p_res, int i_overlay, int i_width,
 121                     int i_height, char *psz_format, int i_shmid ) {
 122
 123     printf( "Sending data via shared memory..." );
 124     CheckedCommand( p_cmd, p_res, "DataSharedMem %d %d %d %s %d\n", i_overlay,
 125                     i_width, i_height, psz_format, i_shmid );
 126     printf( " done\n" );
 127 }
 128
 129 void SetAlpha( FILE *p_cmd, FILE *p_res, int i_overlay, int i_alpha ) {
 130     CheckedCommand( p_cmd, p_res, "SetAlpha %d %d\n", i_overlay, i_alpha );
 131 }
 132
 133 void SetPosition( FILE *p_cmd, FILE *p_res, int i_overlay, int i_x, int i_y ) {
 134     CheckedCommand( p_cmd, p_res, "SetPosition %d %d %d\n", i_overlay, i_x,
 135                     i_y );
 136 }
 137
 138 void SetVisibility( FILE *p_cmd, FILE *p_res, int i_overlay, int i_visible ) {
 139     CheckedCommand( p_cmd, p_res, "SetVisibility %d %d\n", i_overlay,
 140                     i_visible );
 141 }
 142
 143 void SetTextAlpha( FILE *p_cmd, FILE *p_res, int i_overlay, int i_alpha ) {
 144     CheckedCommand( p_cmd, p_res, "SetTextAlpha %d %d\n", i_overlay, i_alpha );
 145 }
 146
 147 void SetTextColor( FILE *p_cmd, FILE *p_res, int i_overlay, int i_red,
 148                    int i_green, int i_blue ) {
 149     CheckedCommand( p_cmd, p_res, "SetTextColor %d %d %d %d\n", i_overlay,
 150                     i_red, i_green, i_blue );
 151 }
 152
 153 void SetTextSize( FILE *p_cmd, FILE *p_res, int i_overlay, int i_size ) {
 154     CheckedCommand( p_cmd, p_res, "SetTextSize %d %d\n", i_overlay, i_size );
 155 }
 156
 157 int GetTextSize( FILE *p_cmd, FILE *p_res, int i_overlay ) {
 158     int i_size;
 159
 160     CheckedCommand( p_cmd, p_res, "GetTextSize %d\n", i_overlay );
 161     fscanf( p_res, "%d", &i_size );
 162
 163     return i_size;
 164 }
 165
 166 /*****************************************************************************
 167  * Test Routines
 168  *****************************************************************************/
 169
 170 void BasicTest( FILE *p_cmd, FILE *p_res, int i_overlay ) {
 171     printf( "Activating overlay..." );
 172     SetVisibility( p_cmd, p_res, i_overlay, 1 );
 173     printf( " done\n" );
 174
 175     printf( "Sweeping alpha..." );
 176     for( int i_alpha = 0xFF; i_alpha >= -0xFF ; i_alpha -= 8 ) {
 177         SetAlpha( p_cmd, p_res, i_overlay, abs( i_alpha ) );
 178         usleep( 20000 );
 179     }
 180     SetAlpha( p_cmd, p_res, i_overlay, 255 );
 181     printf( " done\n" );
 182
 183     printf( "Circle motion..." );
 184     for( float f_theta = 0; f_theta <= 2 * M_PI ; f_theta += M_PI / 64.0 ) {
 185         SetPosition( p_cmd, p_res, i_overlay,
 186                      (int)( - cos( f_theta ) * 100.0 + 100.0 ),
 187                      (int)( - sin( f_theta ) * 100.0 + 100.0 ) );
 188         usleep( 20000 );
 189     }
 190     SetPosition( p_cmd, p_res, i_overlay, 0, 100 );
 191     printf( " done\n" );
 192
 193     printf( "Atomic motion..." );
 194     StartAtomic( p_cmd, p_res );
 195     SetPosition( p_cmd, NULL, i_overlay, 200, 50 );
 196     sleep( 1 );
 197     SetPosition( p_cmd, NULL, i_overlay, 0, 0 );
 198     EndAtomic( p_cmd, p_res );
 199     CheckResult( p_res );
 200     CheckResult( p_res );
 201     printf( " done\n" );
 202
 203     sleep( 5 );
 204 }
 205
 206 void TextTest( FILE *p_cmd, FILE *p_res, int i_overlay ) {
 207     printf( "Sweeping (text) alpha..." );
 208     for( int i_alpha = 0xFF; i_alpha >= -0xFF ; i_alpha -= 8 ) {
 209         SetTextAlpha( p_cmd, p_res, i_overlay, abs( i_alpha ) );
 210         usleep( 20000 );
 211     }
 212     SetTextAlpha( p_cmd, p_res, i_overlay, 255 );
 213     printf( " done\n" );
 214
 215     printf( "Sweeping colors..." );
 216     for( int i_red = 0xFF; i_red >= 0x00 ; i_red -= 8 ) {
 217         SetTextColor( p_cmd, p_res, i_overlay, i_red, 0xFF, 0xFF );
 218         usleep( 20000 );
 219     }
 220     for( int i_green = 0xFF; i_green >= 0x00 ; i_green -= 8 ) {
 221         SetTextColor( p_cmd, p_res, i_overlay, 0x00, i_green, 0xFF );
 222         usleep( 20000 );
 223     }
 224     for( int i_blue = 0xFF; i_blue >= 0x00 ; i_blue -= 8 ) {
 225         SetTextColor( p_cmd, p_res, i_overlay, 0x00, 0x00, i_blue );
 226         usleep( 20000 );
 227     }
 228     SetTextColor( p_cmd, p_res, i_overlay, 0x00, 0x00, 0x00 );
 229     printf( " done\n" );
 230
 231     printf( "Getting size..." );
 232     int i_basesize = GetTextSize( p_cmd, p_res, i_overlay );
 233     printf( " done. Size is %d\n", i_basesize );
 234
 235     printf( "Sweeping size..." );
 236     for( float f_theta = 0; f_theta <= M_PI ; f_theta += M_PI / 128.0 ) {
 237         SetTextSize( p_cmd, p_res, i_overlay,
 238                      i_basesize * ( 1 + 3 * sin( f_theta ) ) );
 239         usleep( 20000 );
 240     }
 241     SetTextSize( p_cmd, p_res, i_overlay, i_basesize );
 242     printf( " done\n" );
 243
 244     sleep( 5 );
 245 }
 246
 247 /*****************************************************************************
 248  * main
 249  *****************************************************************************/
 250
 251 int main( int i_argc, char *ppsz_argv[] ) {
 252     if( i_argc != 3 ) {
 253         printf( "Incorrect number of parameters.\n"
 254                 "Usage is: %s command-fifo response-fifo\n", ppsz_argv[0] );
 255         exit( -2 );
 256     }
 257
 258     printf( "Creating shared memory for RGBA..." );
 259     int i_shmRGBA = shmget( IPC_PRIVATE, WIDTH * HEIGHT * 4, S_IRWXU );
 260     if( i_shmRGBA == -1 ) {
 261         printf( " failed\n" );
 262         exit( -1 );
 263     }
 264     printf( " done, ID is %d. Text...", i_shmRGBA );
 265     int i_shmText = shmget( IPC_PRIVATE, TEXTSIZE, S_IRWXU );
 266     if( i_shmText == -1 ) {
 267         printf( " failed\n" );
 268         exit( -1 );
 269     }
 270     printf( " done, ID is %d\n", i_shmText );
 271
 272     printf( "Attaching shared memory for RGBA..." );
 273     p_imageRGBA = shmat( i_shmRGBA, NULL, 0 );
 274     if( p_imageRGBA == (void*)-1 ) {
 275         printf( " failed\n" );
 276         exit( -1 );
 277     }
 278     printf( " done. Text..." );
 279     p_text = shmat( i_shmText, NULL, 0 );
 280     if( p_text == (void*)-1 ) {
 281         printf( " failed\n" );
 282         exit( -1 );
 283     }
 284     printf( " done\n" );
 285
 286     printf( "Queueing shared memory for destruction, RGBA..." );
 287     if( shmctl( i_shmRGBA, IPC_RMID, 0 ) == -1 ) {
 288         printf( " failed\n" );
 289         exit( -1 );
 290     }
 291     printf( " done. Text..." );
 292     if( shmctl( i_shmText, IPC_RMID, 0 ) == -1 ) {
 293         printf( " failed\n" );
 294         exit( -1 );
 295     }
 296     printf( " done\n" );
 297
 298     printf( "Generating data..." );
 299     DataCreate();
 300     printf( " done\n" );
 301
 302     printf( "Making FIFOs..." );
 303     if( mkfifo( ppsz_argv[1], S_IRWXU ) ) {
 304         if( errno != EEXIST ) {
 305             printf( " failed\n" );
 306             exit( -1 );
 307         }
 308         printf( " input already exists..." );
 309     }
 310     if( mkfifo( ppsz_argv[2], S_IRWXU ) ) {
 311         if( errno != EEXIST ) {
 312             printf( " failed\n" );
 313             exit( -1 );
 314         }
 315         printf( " output already exists..." );
 316     }
 317     printf( " done\n" );
 318
 319     printf( "Please make sure vlc is running.\n"
 320             "You should append parameters similar to the following:\n"
 321             "--sub-source overlay{input=%s,output=%s}\n",
 322             ppsz_argv[1], ppsz_argv[2] );
 323
 324     printf( "Opening FIFOs..." );
 325     FILE *p_cmd = fopen( ppsz_argv[1], "w" );
 326     if( p_cmd == NULL ) {
 327         printf( " failed\n" );
 328         exit( -1 );
 329     }
 330     FILE *p_res = fopen( ppsz_argv[2], "r" );
 331     if( p_res == NULL ) {
 332         printf( " failed\n" );
 333         exit( -1 );
 334     }
 335     printf( " done\n" );
 336
 337     int i_overlay_image = GenImage( p_cmd, p_res );
 338     int i_overlay_text = GenImage( p_cmd, p_res );
 339     DataSharedMem( p_cmd, p_res, i_overlay_image, WIDTH, HEIGHT, "RGBA",
 340                    i_shmRGBA );
 341     DataSharedMem( p_cmd, p_res, i_overlay_text, TEXTSIZE, 1, "TEXT",
 342                    i_shmText );
 343
 344     BasicTest( p_cmd, p_res, i_overlay_image );
 345     BasicTest( p_cmd, p_res, i_overlay_text );
 346     TextTest( p_cmd, p_res, i_overlay_text );
 347
 348     DeleteImage( p_cmd, p_res, i_overlay_image );
 349     DeleteImage( p_cmd, p_res, i_overlay_text );
 350 }