git.sesse.net Git - vlc/blob - src/video_output/video_output.c

   1 /*******************************************************************************
   2  * video_output.c : video output thread
   3  * (c)2000 VideoLAN
   4  *******************************************************************************
   5  * This module describes the programming interface for video output threads.
   6  * It includes functions allowing to open a new thread, send pictures to a
   7  * thread, and destroy a previously oppenned video output thread.
   8  *******************************************************************************/
   9
  10 /*******************************************************************************
  11  * Preamble
  12  *******************************************************************************/
  13 #include <errno.h>
  14 #include <stdlib.h>
  15 #include <stdio.h>
  16 #include <string.h>
  17
  18 #ifdef VIDEO_X11
  19 #include <X11/Xlib.h>
  20 #endif
  21
  22 #include "common.h"
  23 #include "config.h"
  24 #include "mtime.h"
  25 #include "vlc_thread.h"
  26 #include "video.h"
  27 #include "video_output.h"
  28 #include "video_sys.h"
  29 #include "intf_msg.h"
  30 #include "main.h"
  31
  32 /*******************************************************************************
  33  * Macros
  34  *******************************************************************************/
  35
  36 /* CLIP_BYTE: return value if between 0 and 255, else return nearest boundary
  37  * (0 or 255) */
  38 #define CLIP_BYTE( i_val ) ( (i_val < 0) ? 0 : ((i_val > 255) ? 255 : i_val) )
  39
  40 /* YUV_GRAYSCALE: parametric macro for YUV grayscale transformation.
  41  * Due to the high performance need of this loop, all possible conditions
  42  * evaluations are made outside the transformation loop. However, the code does
  43  * not change much for two different loops. This macro allows to change slightly
  44  * the content of the loop without having to copy and paste code. It is used in
  45  * RenderYUVPicture function. */
  46 #define YUV_GRAYSCALE( TRANS_RED, TRANS_GREEN, TRANS_BLUE, P_PIC )      \
  47 /* Main loop */                                                         \
  48 for (i_pic_y=0; i_pic_y < p_pic->i_height ; i_pic_y++)                  \
  49 {                                                                       \
  50     for (i_pic_x=0; i_pic_x< p_pic->i_width; i_pic_x++)                 \
  51     {                                                                   \
  52         i_y = *p_y++;                                                   \
  53         *P_PIC++ = TRANS_RED[i_y] | TRANS_GREEN[i_y] | TRANS_BLUE[i_y]; \
  54     }                                                                   \
  55     /* Skip until beginning of next line */                             \
  56     P_PIC += i_eol_offset;                                              \
  57 }
  58
  59 /* YUV_TRANSFORM: parametric macro for YUV transformation.
  60  * Due to the high performance need of this loop, all possible conditions
  61  * evaluations are made outside the transformation loop. However, the code does
  62  * not change much for two different loops. This macro allows to change slightly
  63  * the content of the loop without having to copy and paste code. It is used in
  64  * RenderYUVPicture function. */
  65 #define YUV_TRANSFORM( CHROMA, TRANS_RED, TRANS_GREEN, TRANS_BLUE, P_PIC ) \
  66 /* Main loop */                                                         \
  67 for (i_pic_y=0; i_pic_y < p_pic->i_height ; i_pic_y++)                  \
  68 {                                                                       \
  69     for (i_pic_x=0; i_pic_x< p_pic->i_width; i_pic_x+=2)                \
  70     {                                                                   \
  71         /* First sample (complete) */                                   \
  72         i_y = 76309 * *p_y++ - 1188177;                                 \
  73         i_u = *p_u++ - 128;                                             \
  74         i_v = *p_v++ - 128;                                             \
  75         *P_PIC++ =                                                      \
  76             TRANS_RED   [(i_y+i_crv*i_v)                >>16] |         \
  77             TRANS_GREEN [(i_y-i_cgu*i_u-i_cgv*i_v)      >>16] |         \
  78             TRANS_BLUE  [(i_y+i_cbu*i_u)                >>16];          \
  79         i_y = 76309 * *p_y++ - 1188177;                                 \
  80         /* Second sample (partial) */                                   \
  81         if( CHROMA == 444 )                                             \
  82         {                                                               \
  83             i_u = *p_u++ - 128;                                         \
  84             i_v = *p_v++ - 128;                                         \
  85         }                                                               \
  86         *P_PIC++ =                                                      \
  87             TRANS_RED   [(i_y+i_crv*i_v)                >>16] |         \
  88             TRANS_GREEN [(i_y-i_cgu*i_u-i_cgv*i_v)      >>16] |         \
  89             TRANS_BLUE  [(i_y+i_cbu*i_u)                >>16];          \
  90     }                                                                   \
  91     if( (CHROMA == 420) && !(i_pic_y & 0x1) )                           \
  92     {                                                                   \
  93         p_u -= i_chroma_width;                                          \
  94         p_v -= i_chroma_width;                                          \
  95     }                                                                   \
  96     /* Skip until beginning of next line */                             \
  97     P_PIC += i_eol_offset;                                              \
  98 }
  99
 100 /*******************************************************************************
 101  * Constants
 102  *******************************************************************************/
 103
 104 /* RGB/YUV inversion matrix (ISO/IEC 13818-2 section 6.3.6, table 6.9) */
 105 const int MATRIX_COEFFICIENTS_TABLE[8][4] =
 106 {
 107   {117504, 138453, 13954, 34903},       /* no sequence_display_extension */
 108   {117504, 138453, 13954, 34903},       /* ITU-R Rec. 709 (1990) */
 109   {104597, 132201, 25675, 53279},       /* unspecified */
 110   {104597, 132201, 25675, 53279},       /* reserved */
 111   {104448, 132798, 24759, 53109},       /* FCC */
 112   {104597, 132201, 25675, 53279},       /* ITU-R Rec. 624-4 System B, G */
 113   {104597, 132201, 25675, 53279},       /* SMPTE 170M */
 114   {117579, 136230, 16907, 35559}        /* SMPTE 240M (1987) */
 115 };
 116
 117 /*******************************************************************************
 118  * External prototypes
 119  *******************************************************************************/
 120 #ifdef HAVE_MMX
 121 /* YUV transformations for MMX - in yuv-mmx.S
 122  *      p_y, p_u, p_v:          Y U and V planes
 123  *      i_width, i_height:      frames dimensions (pixels)
 124  *      i_ypitch, i_vpitch:     Y and V lines sizes (bytes)
 125  *      i_aspect:               vertical aspect factor
 126  *      pi_pic:                 RGB frame
 127  *      i_dci_offset:           ?? x offset for left image border
 128  *      i_offset_to_line_0:     ?? x offset for left image border
 129  *      i_pitch:                RGB line size (bytes)
 130  *      i_colortype:            0 for 565, 1 for 555 */
 131 void vout_YUV420_16_MMX( u8* p_y, u8* p_u, u8 *p_v,
 132                          unsigned int i_width, unsigned int i_height,
 133                          unsigned int i_ypitch, unsigned int i_vpitch,
 134                          unsigned int i_aspect, u8 *pi_pic,
 135                          u32 i_dci_offset, u32 i_offset_to_line_0,
 136                          int CCOPitch, int i_colortype );
 137 #endif
 138
 139 /*******************************************************************************
 140  * Local prototypes
 141  *******************************************************************************/
 142 static int      InitThread              ( vout_thread_t *p_vout );
 143 static void     RunThread               ( vout_thread_t *p_vout );
 144 static void     ErrorThread             ( vout_thread_t *p_vout );
 145 static void     EndThread               ( vout_thread_t *p_vout );
 146 static void     RenderPicture           ( vout_thread_t *p_vout, picture_t *p_pic );
 147 static void     RenderYUVGrayPicture    ( vout_thread_t *p_vout, picture_t *p_pic );
 148 static void     RenderYUV16Picture      ( vout_thread_t *p_vout, picture_t *p_pic );
 149 static void     RenderYUV32Picture      ( vout_thread_t *p_vout, picture_t *p_pic );
 150 static void     RenderInfo              ( vout_thread_t *p_vout );
 151
 152 /*******************************************************************************
 153  * vout_CreateThread: creates a new video output thread
 154  *******************************************************************************
 155  * This function creates a new video output thread, and returns a pointer
 156  * to its description. On error, it returns NULL.
 157  * If pi_status is NULL, then the function will block until the thread is ready.
 158  * If not, it will be updated using one of the THREAD_* constants.
 159  *******************************************************************************/
 160 vout_thread_t * vout_CreateThread               (
 161 #ifdef VIDEO_X11
 162                                                   char *psz_display, Window root_window,
 163 #endif
 164                                                   int i_width, int i_height, int *pi_status
 165                                                 )
 166 {
 167     vout_thread_t * p_vout;                               /* thread descriptor */
 168     int             i_status;                                 /* thread status */
 169
 170     /* Allocate descriptor */
 171     p_vout = (vout_thread_t *) malloc( sizeof(vout_thread_t) );
 172     if( p_vout == NULL )
 173     {
 174         intf_ErrMsg("error: %s\n", strerror(ENOMEM));
 175         return( NULL );
 176     }
 177
 178     /* Initialize some fields used by the system-dependant method - these fields will
 179      * probably be modified by the method */
 180 #ifdef DEBUG
 181     p_vout->b_info              = 1;
 182 #else
 183     p_vout->b_info              = 0;
 184 #endif
 185     p_vout->b_grayscale         = main_GetIntVariable( VOUT_GRAYSCALE_VAR,
 186                                                        VOUT_GRAYSCALE_DEFAULT );
 187     p_vout->i_width             = i_width;
 188     p_vout->i_height            = i_height;
 189     p_vout->i_bytes_per_line    = i_width * 2;
 190     p_vout->i_screen_depth      = 15;
 191     p_vout->i_bytes_per_pixel   = 2;
 192     p_vout->f_x_ratio           = 1;
 193     p_vout->f_y_ratio           = 1;
 194     intf_DbgMsg("wished configuration: %dx%d,%d (%d bytes/pixel, %d bytes/line), ratio %.2f:%.2f, gray=%d\n",
 195                 p_vout->i_width, p_vout->i_height, p_vout->i_screen_depth,
 196                 p_vout->i_bytes_per_pixel, p_vout->i_bytes_per_line,
 197                 p_vout->f_x_ratio, p_vout->f_y_ratio, p_vout->b_grayscale );
 198
 199     /* Create and initialize system-dependant method - this function issues its
 200      * own error messages */
 201     if( vout_SysCreate( p_vout
 202 #if defined(VIDEO_X11)
 203                         , psz_display, root_window
 204 #endif
 205         ) )
 206     {
 207       free( p_vout );
 208       return( NULL );
 209     }
 210     intf_DbgMsg("actual configuration: %dx%d,%d (%d bytes/pixel, %d bytes/line), ratio %.2f:%.2f, gray=%d\n",
 211                 p_vout->i_width, p_vout->i_height, p_vout->i_screen_depth,
 212                 p_vout->i_bytes_per_pixel, p_vout->i_bytes_per_line,
 213                 p_vout->f_x_ratio, p_vout->f_y_ratio, p_vout->b_grayscale );
 214
 215     /* Terminate the initialization */
 216     p_vout->b_die               = 0;
 217     p_vout->b_error             = 0;
 218     p_vout->b_active            = 0;
 219     p_vout->pi_status           = (pi_status != NULL) ? pi_status : &i_status;
 220     *p_vout->pi_status          = THREAD_CREATE;
 221 #ifdef STATS
 222     p_vout->c_loops             = 0;
 223     p_vout->c_idle_loops        = 0;
 224     p_vout->c_pictures          = 0;
 225 #endif
 226
 227     /* Create thread and set locks */
 228     vlc_mutex_init( &p_vout->lock );
 229     if( vlc_thread_create( &p_vout->thread_id, "video output",
 230                            (void *) RunThread, (void *) p_vout) )
 231     {
 232         intf_ErrMsg("error: %s\n", strerror(ENOMEM));
 233         vout_SysDestroy( p_vout );
 234         free( p_vout );
 235         return( NULL );
 236     }
 237
 238     intf_Msg("Video: display initialized (%dx%d, %d bpp)\n",
 239              p_vout->i_width, p_vout->i_height, p_vout->i_screen_depth );
 240
 241     /* If status is NULL, wait until the thread is created */
 242     if( pi_status == NULL )
 243     {
 244         do
 245         {
 246             msleep( THREAD_SLEEP );
 247         }while( (i_status != THREAD_READY) && (i_status != THREAD_ERROR)
 248                 && (i_status != THREAD_FATAL) );
 249         if( i_status != THREAD_READY )
 250         {
 251             return( NULL );
 252         }
 253     }
 254     return( p_vout );
 255 }
 256
 257 /*******************************************************************************
 258  * vout_DestroyThread: destroys a previously created thread
 259  *******************************************************************************
 260  * Destroy a terminated thread.
 261  * The function will request a destruction of the specified thread. If pi_error
 262  * is NULL, it will return once the thread is destroyed. Else, it will be
 263  * update using one of the THREAD_* constants.
 264  *******************************************************************************/
 265 void vout_DestroyThread( vout_thread_t *p_vout, int *pi_status )
 266 {
 267     int     i_status;                                         /* thread status */
 268
 269     /* Set status */
 270     p_vout->pi_status = (pi_status != NULL) ? pi_status : &i_status;
 271     *p_vout->pi_status = THREAD_DESTROY;
 272
 273     /* Request thread destruction */
 274     p_vout->b_die = 1;
 275
 276     /* If status is NULL, wait until thread has been destroyed */
 277     if( pi_status == NULL )
 278     {
 279         do
 280         {
 281             msleep( THREAD_SLEEP );
 282         }while( (i_status != THREAD_OVER) && (i_status != THREAD_ERROR)
 283                 && (i_status != THREAD_FATAL) );
 284     }
 285 }
 286
 287 /*******************************************************************************
 288  * vout_DisplayPicture: display a picture
 289  *******************************************************************************
 290  * Remove the reservation flag of a picture, which will cause it to be ready for
 291  * display. The picture does not need to be locked, since it is ignored by
 292  * the output thread if is reserved.
 293  *******************************************************************************/
 294 void  vout_DisplayPicture( vout_thread_t *p_vout, picture_t *p_pic )
 295 {
 296 #ifdef DEBUG_VIDEO
 297     char        psz_date[MSTRTIME_MAX_SIZE];         /* buffer for date string */
 298 #endif
 299
 300 #ifdef DEBUG_VIDEO
 301     /* Check if picture status is valid */
 302     if( p_pic->i_status != RESERVED_PICTURE )
 303     {
 304         intf_DbgMsg("error: picture %d has invalid status %d\n",
 305                     p_pic, p_pic->i_status );
 306     }
 307 #endif
 308
 309     /* Remove reservation flag */
 310     p_pic->i_status = READY_PICTURE;
 311
 312 #ifdef STATS
 313     /* Update stats */
 314     p_vout->c_pictures++;
 315 #endif
 316
 317 #ifdef DEBUG_VIDEO
 318     /* Send picture informations */
 319     intf_DbgMsg("picture %p: type=%d, %dx%d, date=%s\n", p_pic, p_pic->i_type,
 320                 p_pic->i_width,p_pic->i_height, mstrtime( psz_date, p_pic->date ) );
 321 #endif
 322 }
 323
 324 /*******************************************************************************
 325  * vout_CreatePicture: allocate a picture in the video output heap.
 326  *******************************************************************************
 327  * This function create a reserved image in the video output heap.
 328  * A null pointer is returned if the function fails. This method provides an
 329  * already allocated zone of memory in the picture data fields. It needs locking
 330  * since several pictures can be created by several producers threads.
 331  *******************************************************************************/
 332 picture_t *vout_CreatePicture( vout_thread_t *p_vout, int i_type,
 333                                int i_width, int i_height, int i_bytes_per_line )
 334 {
 335     int         i_picture;                                    /* picture index */
 336     picture_t * p_free_picture = NULL;                   /* first free picture */
 337     picture_t * p_destroyed_picture = NULL;         /* first destroyed picture */
 338
 339     /* Get lock */
 340     vlc_mutex_lock( &p_vout->lock );
 341
 342     /*
 343      * Look for an empty place
 344      */
 345     for( i_picture = 0;
 346          i_picture < VOUT_MAX_PICTURES;
 347          i_picture++ )
 348     {
 349         if( p_vout->p_picture[i_picture].i_status == DESTROYED_PICTURE )
 350         {
 351             /* Picture is marked for destruction, but is still allocated */
 352             if( (p_vout->p_picture[i_picture].i_type           == i_type)   &&
 353                 (p_vout->p_picture[i_picture].i_height         == i_height) &&
 354                 (p_vout->p_picture[i_picture].i_bytes_per_line == i_bytes_per_line) )
 355             {
 356                 /* Memory size do match : memory will not be reallocated, and function
 357                  * can end immediately - this is the best possible case, since no
 358                  * memory allocation needs to be done */
 359                 p_vout->p_picture[i_picture].i_width  = i_width;
 360                 p_vout->p_picture[i_picture].i_status = RESERVED_PICTURE;
 361 #ifdef DEBUG_VIDEO
 362                 intf_DbgMsg("picture %p (in destroyed picture slot)\n",
 363                             &p_vout->p_picture[i_picture] );
 364 #endif
 365                 vlc_mutex_unlock( &p_vout->lock );
 366                 return( &p_vout->p_picture[i_picture] );
 367             }
 368             else if( p_destroyed_picture == NULL )
 369             {
 370                 /* Memory size do not match, but picture index will be kept in
 371                  * case no other place are left */
 372                 p_destroyed_picture = &p_vout->p_picture[i_picture];
 373             }
 374         }
 375         else if( (p_free_picture == NULL) &&
 376                  (p_vout->p_picture[i_picture].i_status == FREE_PICTURE ))
 377         {
 378             /* Picture is empty and ready for allocation */
 379             p_free_picture = &p_vout->p_picture[i_picture];
 380         }
 381     }
 382
 383     /* If no free picture is available, use a destroyed picture */
 384     if( (p_free_picture == NULL) && (p_destroyed_picture != NULL ) )
 385     {
 386         /* No free picture or matching destroyed picture has been found, but
 387          * a destroyed picture is still avalaible */
 388         free( p_destroyed_picture->p_data );
 389         p_free_picture = p_destroyed_picture;
 390     }
 391
 392     /*
 393      * Prepare picture
 394      */
 395     if( p_free_picture != NULL )
 396     {
 397         /* Allocate memory */
 398         switch( i_type )
 399         {
 400         case YUV_420_PICTURE:                   /* YUV picture: bits per pixel */
 401         case YUV_422_PICTURE:
 402         case YUV_444_PICTURE:
 403             p_free_picture->p_data = malloc( 3 * i_height * i_bytes_per_line );
 404             p_free_picture->p_y = (yuv_data_t *) p_free_picture->p_data;
 405             p_free_picture->p_u = (yuv_data_t *)(p_free_picture->p_data + i_height * i_bytes_per_line);
 406             p_free_picture->p_v = (yuv_data_t *)(p_free_picture->p_data + i_height * i_bytes_per_line * 2);
 407             break;
 408 #ifdef DEBUG
 409         default:
 410             intf_DbgMsg("error: unknown picture type %d\n", i_type );
 411             p_free_picture->p_data   =  NULL;
 412             break;
 413 #endif
 414         }
 415
 416         if( p_free_picture->p_data != NULL )
 417         {
 418             /* Copy picture informations */
 419             p_free_picture->i_type                      = i_type;
 420             p_free_picture->i_status                    = RESERVED_PICTURE;
 421             p_free_picture->i_width                     = i_width;
 422             p_free_picture->i_height                    = i_height;
 423             p_free_picture->i_bytes_per_line            = i_bytes_per_line;
 424             p_free_picture->i_refcount                  = 0;
 425             p_free_picture->i_matrix_coefficients       = 1;
 426         }
 427         else
 428         {
 429             /* Memory allocation failed : set picture as empty */
 430             p_free_picture->i_type   =  EMPTY_PICTURE;
 431             p_free_picture->i_status =  FREE_PICTURE;
 432             p_free_picture =            NULL;
 433             intf_ErrMsg("warning: %s\n", strerror( ENOMEM ) );
 434         }
 435
 436 #ifdef DEBUG_VIDEO
 437         intf_DbgMsg("picture %p (in free picture slot)\n", p_free_picture );
 438 #endif
 439         vlc_mutex_unlock( &p_vout->lock );
 440         return( p_free_picture );
 441     }
 442
 443     // No free or destroyed picture could be found
 444     intf_DbgMsg( "warning: heap is full\n" );
 445     vlc_mutex_unlock( &p_vout->lock );
 446     return( NULL );
 447 }
 448
 449 /*******************************************************************************
 450  * vout_DestroyPicture: remove a permanent or reserved picture from the heap
 451  *******************************************************************************
 452  * This function frees a previously reserved picture or a permanent
 453  * picture. It is meant to be used when the construction of a picture aborted.
 454  * Note that the picture will be destroyed even if it is linked !
 455  * This function does not need locking since reserved pictures are ignored by
 456  * the output thread.
 457  *******************************************************************************/
 458 void vout_DestroyPicture( vout_thread_t *p_vout, picture_t *p_pic )
 459 {
 460 #ifdef DEBUG_VIDEO
 461    /* Check if picture status is valid */
 462    if( p_pic->i_status != RESERVED_PICTURE )
 463    {
 464        intf_DbgMsg("error: picture %d has invalid status %d\n",
 465                    p_pic, p_pic->i_status );
 466    }
 467 #endif
 468
 469     p_pic->i_status = DESTROYED_PICTURE;
 470
 471 #ifdef DEBUG_VIDEO
 472     intf_DbgMsg("picture %p\n", p_pic);
 473 #endif
 474 }
 475
 476 /*******************************************************************************
 477  * vout_LinkPicture: increment reference counter of a picture
 478  *******************************************************************************
 479  * This function increment the reference counter of a picture in the video
 480  * heap. It needs a lock since several producer threads can access the picture.
 481  *******************************************************************************/
 482 void vout_LinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
 483 {
 484     vlc_mutex_lock( &p_vout->lock );
 485     p_pic->i_refcount++;
 486
 487 #ifdef DEBUG_VIDEO
 488     intf_DbgMsg("picture %p\n", p_pic);
 489 #endif
 490
 491     vlc_mutex_unlock( &p_vout->lock );
 492 }
 493
 494 /*******************************************************************************
 495  * vout_UnlinkPicture: decrement reference counter of a picture
 496  *******************************************************************************
 497  * This function decrement the reference counter of a picture in the video heap.
 498  *******************************************************************************/
 499 void vout_UnlinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
 500 {
 501     vlc_mutex_lock( &p_vout->lock );
 502     p_pic->i_refcount--;
 503     if( (p_pic->i_refcount == 0) && (p_pic->i_status == DISPLAYED_PICTURE) )
 504     {
 505         p_pic->i_status = DESTROYED_PICTURE;
 506     }
 507
 508 #ifdef DEBUG_VIDEO
 509     intf_DbgMsg("picture %p\n", p_pic);
 510 #endif
 511
 512     vlc_mutex_unlock( &p_vout->lock );
 513 }
 514
 515 /* following functions are local */
 516
 517 /*******************************************************************************
 518  * InitThread: initialize video output thread
 519  *******************************************************************************
 520  * This function is called from RunThread and performs the second step of the
 521  * initialization. It returns 0 on success. Note that the thread's flag are not
 522  * modified inside this function.
 523  *******************************************************************************/
 524 static int InitThread( vout_thread_t *p_vout )
 525 {
 526     int     i_index;                                          /* generic index */
 527     int     i_pixel_size;     /* pixel size, in bytes, for translations tables */
 528
 529     /* Update status */
 530     *p_vout->pi_status = THREAD_START;
 531
 532     /* Initialize pictures */
 533     p_vout->i_pictures = 0;
 534     for( i_index = 0; i_index < VOUT_MAX_PICTURES; i_index++)
 535     {
 536         p_vout->p_picture[i_index].i_type  = EMPTY_PICTURE;
 537         p_vout->p_picture[i_index].i_status= FREE_PICTURE;
 538     }
 539
 540 #ifdef STATS
 541     /* Initialize FPS index - since samples won't be used until a minimum of
 542      * pictures, they don't need to be initialized */
 543     p_vout->i_fps_index = 0;
 544 #endif
 545
 546     /* Initialize output method - this function issues its own error messages */
 547     if( vout_SysInit( p_vout ) )
 548     {
 549         *p_vout->pi_status = THREAD_ERROR;
 550         return( 1 );
 551     }
 552
 553     /* Allocate translation tables */
 554     switch( p_vout->i_bytes_per_pixel )
 555     {
 556     case 2:                   /* 15 or 16 bpp, use 16 bits translations tables */
 557         i_pixel_size = sizeof( u16 );
 558         break;
 559     case 3:                   /* 24 or 32 bpp, use 32 bits translations tables */
 560     case 4:
 561 #ifndef DEBUG
 562     default:
 563 #endif
 564         i_pixel_size = sizeof( u32 );
 565         break;
 566 #ifdef DEBUG
 567     default:
 568         intf_DbgMsg("error: invalid bytes_per_pixel %d\n", p_vout->i_bytes_per_pixel );
 569         i_pixel_size = sizeof( u32 );
 570         break;
 571 #endif
 572     }
 573     p_vout->pi_trans32_red =   (u32 *)p_vout->pi_trans16_red =
 574         (u16 *)malloc( 1024 * i_pixel_size );
 575     p_vout->pi_trans32_green = (u32 *)p_vout->pi_trans16_green =
 576         (u16 *)malloc( 1024 * i_pixel_size );
 577     p_vout->pi_trans32_blue =  (u32 *)p_vout->pi_trans16_blue =
 578         (u16 *)malloc( 1024 * i_pixel_size );
 579     if( (p_vout->pi_trans16_red == NULL) ||
 580         (p_vout->pi_trans16_green == NULL ) ||
 581         (p_vout->pi_trans16_blue == NULL ) )
 582     {
 583         intf_ErrMsg("error: %s\n", strerror(ENOMEM) );
 584         *p_vout->pi_status = THREAD_ERROR;
 585         if( p_vout->pi_trans16_red != NULL )
 586         {
 587             free( p_vout->pi_trans16_red );
 588         }
 589         if( p_vout->pi_trans16_green != NULL )
 590         {
 591             free( p_vout->pi_trans16_green );
 592         }
 593         if( p_vout->pi_trans16_blue != NULL )
 594         {
 595             free( p_vout->pi_trans16_blue );
 596         }
 597         return( 1 );
 598     }
 599
 600     /* Translate translation tables */
 601     p_vout->pi_trans16_red      += 384;
 602     p_vout->pi_trans16_green    += 384;
 603     p_vout->pi_trans16_blue     += 384;
 604     p_vout->pi_trans32_red      += 384;
 605     p_vout->pi_trans32_green    += 384;
 606     p_vout->pi_trans32_blue     += 384;
 607
 608     /* Build translation tables */
 609     switch( p_vout->i_screen_depth )
 610     {
 611     case 15:
 612         for( i_index = -384; i_index < 640; i_index++)
 613         {
 614             p_vout->pi_trans16_red[i_index]     = (CLIP_BYTE( i_index ) & 0xf8)<<7;
 615             p_vout->pi_trans16_green[i_index]   = (CLIP_BYTE( i_index ) & 0xf8)<<2;
 616             p_vout->pi_trans16_blue[i_index]    =  CLIP_BYTE( i_index ) >> 3;
 617         }
 618         break;
 619     case 16:
 620         for( i_index = -384; i_index < 640; i_index++)
 621         {
 622             p_vout->pi_trans16_red[i_index]     = (CLIP_BYTE( i_index ) & 0xf8)<<8;
 623             p_vout->pi_trans16_green[i_index]   = (CLIP_BYTE( i_index ) & 0xfc)<<3;
 624             p_vout->pi_trans16_blue[i_index]    =  CLIP_BYTE( i_index ) >> 3;
 625         }
 626         break;
 627     case 24:
 628     case 32:
 629         for( i_index = -384; i_index < 640; i_index++)
 630         {
 631             p_vout->pi_trans32_red[i_index]     =  CLIP_BYTE( i_index ) <<16;
 632             p_vout->pi_trans32_green[i_index]   =  CLIP_BYTE( i_index ) <<8;
 633             p_vout->pi_trans32_blue[i_index]    =  CLIP_BYTE( i_index ) ;
 634         }
 635         break;
 636 #ifdef DEBUG
 637     default:
 638         intf_DbgMsg("error: invalid screen depth %d\n", p_vout->i_screen_depth );
 639         break;
 640 #endif
 641     }
 642
 643     /* Mark thread as running and return */
 644     p_vout->b_active =          1;
 645     *p_vout->pi_status =        THREAD_READY;
 646     intf_DbgMsg("thread ready\n");
 647     return(0);
 648 }
 649
 650 /*******************************************************************************
 651  * RunThread: video output thread
 652  *******************************************************************************
 653  * Video output thread. This function does only returns when the thread is
 654  * terminated. It handles the pictures arriving in the video heap and the
 655  * display device events.
 656  *******************************************************************************/
 657 static void RunThread( vout_thread_t *p_vout)
 658 {
 659     int             i_picture;                                /* picture index */
 660     int             i_err;                                       /* error code */
 661     mtime_t         current_date;                              /* current date */
 662     picture_t *     p_pic;                                  /* picture pointer */
 663     mtime_t         pic_date = 0;                              /* picture date */
 664
 665     /*
 666      * Initialize thread and free configuration
 667      */
 668     p_vout->b_error = InitThread( p_vout );
 669     if( p_vout->b_error )
 670     {
 671         free( p_vout );                                  /* destroy descriptor */
 672         return;
 673     }
 674
 675     /*
 676      * Main loop - it is not executed if an error occured during
 677      * initialization
 678      */
 679     while( (!p_vout->b_die) && (!p_vout->b_error) )
 680     {
 681         /*
 682          * Find the picture to display - this operation does not need lock,
 683          * since only READY_PICTURES are handled
 684          */
 685         p_pic = NULL;
 686         for( i_picture = 0; i_picture < VOUT_MAX_PICTURES; i_picture++ )
 687         {
 688             if( (p_vout->p_picture[i_picture].i_status == READY_PICTURE) &&
 689                 ( (p_pic == NULL) ||
 690                   (p_vout->p_picture[i_picture].date < pic_date) ) )
 691             {
 692                 p_pic = &p_vout->p_picture[i_picture];
 693                 pic_date = p_pic->date;
 694             }
 695         }
 696
 697         /*
 698          * Render picture if any
 699          */
 700         if( p_pic )
 701         {
 702 #ifdef STATS
 703             /* Computes FPS rate */
 704             p_vout->fps_sample[ p_vout->i_fps_index++ ] = pic_date;
 705             if( p_vout->i_fps_index == VOUT_FPS_SAMPLES )
 706             {
 707                 p_vout->i_fps_index = 0;
 708             }
 709 #endif
 710             current_date = mdate();
 711             if( pic_date < current_date )
 712             {
 713                 /* Picture is late: it will be destroyed and the thread will go
 714                  * immediately to next picture */
 715                 if( p_pic->i_refcount )
 716                 {
 717                     p_pic->i_status = DISPLAYED_PICTURE;
 718                 }
 719                 else
 720                 {
 721                     p_pic->i_status = DESTROYED_PICTURE;
 722                 }
 723
 724 #ifdef DEBUG_VIDEO
 725                 intf_DbgMsg( "warning: late picture %p skipped\n", p_pic );
 726 #endif
 727                 p_pic = NULL;
 728             }
 729             else if( pic_date > current_date + VOUT_DISPLAY_DELAY )
 730             {
 731                 /* A picture is ready to be rendered, but its rendering date is
 732                  * far from the current one so the thread will perform an empty loop
 733                  * as if no picture were found. The picture state is unchanged */
 734                 p_pic = NULL;
 735             }
 736             else
 737             {
 738                 /* Picture has not yet been displayed, and has a valid display
 739                  * date : render it, then forget it */
 740                 RenderPicture( p_vout, p_pic );
 741                 if( p_pic->i_refcount )
 742                 {
 743                     p_pic->i_status = DISPLAYED_PICTURE;
 744                 }
 745                 else
 746                 {
 747                     p_pic->i_status = DESTROYED_PICTURE;
 748                 }
 749
 750                 /* Print additional informations */
 751                 if( p_vout->b_info )
 752                 {
 753                     RenderInfo( p_vout );
 754                 }
 755             }
 756         }
 757
 758         /*
 759          * Check events, sleep and display picture
 760          */
 761         i_err = vout_SysManage( p_vout );
 762         if( i_err < 0 )
 763         {
 764             /* A fatal error occured, and the thread must terminate immediately,
 765              * without displaying anything - setting b_error to 1 cause the
 766              * immediate end of the main while() loop. */
 767             p_vout->b_error = 1;
 768         }
 769         else
 770         {
 771             if( p_pic )
 772             {
 773                 /* A picture is ready to be displayed : sleep until its display date */
 774                 mwait( pic_date );
 775
 776                 if( !i_err )
 777                 {
 778                     vout_SysDisplay( p_vout );
 779                 }
 780             }
 781             else
 782             {
 783                 /* Sleep to wait for new pictures */
 784                 msleep( VOUT_IDLE_SLEEP );
 785 #ifdef STATS
 786                 /* Update counters */
 787                 p_vout->c_idle_loops++;
 788 #endif
 789             }
 790         }
 791
 792 #ifdef STATS
 793         /* Update counters */
 794         p_vout->c_loops++;
 795 #endif
 796     }
 797
 798     /*
 799      * Error loop
 800      */
 801     if( p_vout->b_error )
 802     {
 803         ErrorThread( p_vout );
 804     }
 805
 806     /* End of thread */
 807     EndThread( p_vout );
 808     intf_DbgMsg( "thread end\n" );
 809 }
 810
 811 /*******************************************************************************
 812  * ErrorThread: RunThread() error loop
 813  *******************************************************************************
 814  * This function is called when an error occured during thread main's loop. The
 815  * thread can still receive feed, but must be ready to terminate as soon as
 816  * possible.
 817  *******************************************************************************/
 818 static void ErrorThread( vout_thread_t *p_vout )
 819 {
 820     /* Wait until a `die' order */
 821     while( !p_vout->b_die )
 822     {
 823         /* Sleep a while */
 824         msleep( VOUT_IDLE_SLEEP );
 825     }
 826 }
 827
 828 /*******************************************************************************
 829  * EndThread: thread destruction
 830  *******************************************************************************
 831  * This function is called when the thread ends after a sucessfull
 832  * initialization.
 833  *******************************************************************************/
 834 static void EndThread( vout_thread_t *p_vout )
 835 {
 836     int *   pi_status;                                        /* thread status */
 837     int     i_picture;
 838
 839     /* Store status */
 840     pi_status = p_vout->pi_status;
 841     *pi_status = THREAD_END;
 842
 843     /* Destroy all remaining pictures */
 844     for( i_picture = 0; i_picture < VOUT_MAX_PICTURES; i_picture++ )
 845     {
 846         if( p_vout->p_picture[i_picture].i_status != FREE_PICTURE )
 847         {
 848             free( p_vout->p_picture[i_picture].p_data );
 849         }
 850     }
 851
 852     /* Destroy translation tables - remeber these tables are translated */
 853     free( p_vout->pi_trans16_red - 384 );
 854     free( p_vout->pi_trans16_green - 384 );
 855     free( p_vout->pi_trans16_blue - 384 );
 856
 857     /* Destroy thread structures allocated by InitThread */
 858     vout_SysEnd( p_vout );
 859     vout_SysDestroy( p_vout );
 860     free( p_vout );
 861
 862     /* Update status */
 863     *pi_status = THREAD_OVER;
 864 }
 865
 866 /*******************************************************************************
 867  * RenderPicture: render a picture
 868  *******************************************************************************
 869  * This function convert a picture from a video heap to a pixel-encoded image
 870  * and copy it to the current rendering buffer. No lock is required, since the
 871  * rendered picture has been determined as existant, and will only be destroyed
 872  * by the vout thread later.
 873  * ???? 24 and 32 bpp should probably be separated
 874  *******************************************************************************/
 875 static void RenderPicture( vout_thread_t *p_vout, picture_t *p_pic )
 876 {
 877 #ifdef DEBUG_VIDEO
 878     /* Send picture informations */
 879     intf_DbgMsg("picture %p\n", p_pic );
 880
 881     /* Store rendering start date */
 882     p_vout->picture_render_time = mdate();
 883 #endif
 884
 885     switch( p_pic->i_type )
 886     {
 887     case YUV_420_PICTURE:                   /* YUV picture: YUV transformation */
 888     case YUV_422_PICTURE:
 889     case YUV_444_PICTURE:
 890         if( p_vout->b_grayscale )                                 /* grayscale */
 891         {
 892             RenderYUVGrayPicture( p_vout, p_pic );
 893         }
 894         else if( p_vout->i_bytes_per_pixel == 2 )        /* color 15 or 16 bpp */
 895         {
 896             RenderYUV16Picture( p_vout, p_pic );
 897         }
 898         else                                             /* color 24 or 32 bpp */
 899         {
 900             RenderYUV32Picture( p_vout, p_pic );
 901         }
 902         break;
 903 #ifdef DEBUG
 904     default:
 905         intf_DbgMsg("error: unknown picture type %d\n", p_pic->i_type );
 906         break;
 907 #endif
 908     }
 909
 910 #ifdef DEBUG_VIDEO
 911     /* Computes rendering time */
 912     p_vout->picture_render_time = mdate() - p_vout->picture_render_time;
 913 #endif
 914 }
 915
 916 /*******************************************************************************
 917  * RenderYUVGrayPicture: render a 15, 16, 24 or 32 bpp YUV picture in grayscale
 918  *******************************************************************************
 919  * Performs the YUV convertion. The picture sent to this function should only
 920  * have YUV_420, YUV_422 or YUV_444 types.
 921  *******************************************************************************/
 922 static void RenderYUVGrayPicture( vout_thread_t *p_vout, picture_t *p_pic )
 923 {
 924     int         i_pic_x, i_pic_y;                /* x,y coordinates in picture */
 925     int         i_width, i_height;                             /* picture size */
 926     int         i_eol_offset;          /* pixels from end of line to next line */
 927     yuv_data_t *p_y;                                     /* Y data base adress */
 928     yuv_data_t  i_y;                                               /* Y sample */
 929     u16 *       pi_pic16;                 /* destination picture, 15 or 16 bpp */
 930     u32 *       pi_pic32;                 /* destination picture, 24 or 32 bpp */
 931     u16 *       pi_trans16_red;                    /* red transformation table */
 932     u16 *       pi_trans16_green;                /* green transformation table */
 933     u16 *       pi_trans16_blue;                  /* blue transformation table */
 934     u32 *       pi_trans32_red;                    /* red transformation table */
 935     u32 *       pi_trans32_green;                /* green transformation table */
 936     u32 *       pi_trans32_blue;                  /* blue transformation table */
 937
 938     /* Set the base pointers and transformation parameters */
 939     p_y =               p_pic->p_y;
 940     i_width =           p_pic->i_width;
 941     i_height =          p_pic->i_height;
 942     i_eol_offset =      p_vout->i_bytes_per_line / p_vout->i_bytes_per_pixel - i_width;
 943
 944     /* Get base adress for destination image and translation tables, then
 945      * transform image */
 946     switch( p_vout->i_screen_depth )
 947     {
 948     case 15:
 949     case 16:
 950         pi_trans16_red =      p_vout->pi_trans16_red;
 951         pi_trans16_green =    p_vout->pi_trans16_green;
 952         pi_trans16_blue =     p_vout->pi_trans16_blue;
 953         pi_pic16 = (u16 *) vout_SysGetPicture( p_vout );
 954
 955         YUV_GRAYSCALE( pi_trans16_red, pi_trans16_green, pi_trans16_blue,
 956                        pi_pic16 );
 957         break;
 958     case 24:
 959     case 32:
 960         pi_trans32_red =      p_vout->pi_trans32_red;
 961         pi_trans32_green =    p_vout->pi_trans32_green;
 962         pi_trans32_blue =     p_vout->pi_trans32_blue;
 963         pi_pic32 = (u32 *) vout_SysGetPicture( p_vout );
 964
 965         YUV_GRAYSCALE( pi_trans32_red, pi_trans32_green, pi_trans32_blue,
 966                        pi_pic32 );
 967         break;
 968 #ifdef DEBUG
 969     default:
 970         intf_DbgMsg("error: invalid screen depth %d\n", p_vout->i_screen_depth );
 971         break;
 972 #endif
 973     }
 974 }
 975
 976
 977 /*******************************************************************************
 978  * RenderYUV16Picture: render a 15 or 16 bpp YUV picture
 979  *******************************************************************************
 980  * Performs the YUV convertion. The picture sent to this function should only
 981  * have YUV_420, YUV_422 or YUV_444 types.
 982  *******************************************************************************/
 983 static void RenderYUV16Picture( vout_thread_t *p_vout, picture_t *p_pic )
 984 {
 985     int         i_crv, i_cbu, i_cgu, i_cgv;     /* transformation coefficients */
 986     int         i_pic_x, i_pic_y;                /* x,y coordinates in picture */
 987     int         i_y, i_u, i_v;                           /* Y, U and V samples */
 988     int         i_width, i_height;                             /* picture size */
 989     int         i_chroma_width;                                /* chroma width */
 990     int         i_eol_offset;          /* pixels from end of line to next line */
 991     yuv_data_t *p_y;                                     /* Y data base adress */
 992     yuv_data_t *p_u;                                     /* U data base adress */
 993     yuv_data_t *p_v;                                     /* V data base adress */
 994     u16 *       pi_pic;                 /* base adress for destination picture */
 995     u16 *       pi_trans_red;                      /* red transformation table */
 996     u16 *       pi_trans_green;                  /* green transformation table */
 997     u16 *       pi_trans_blue;                    /* blue transformation table */
 998
 999     /* Choose transformation matrix coefficients */
1000     i_crv = MATRIX_COEFFICIENTS_TABLE[p_pic->i_matrix_coefficients][0];
1001     i_cbu = MATRIX_COEFFICIENTS_TABLE[p_pic->i_matrix_coefficients][1];
1002     i_cgu = MATRIX_COEFFICIENTS_TABLE[p_pic->i_matrix_coefficients][2];
1003     i_cgv = MATRIX_COEFFICIENTS_TABLE[p_pic->i_matrix_coefficients][3];
1004
1005     /* Choose the conversions tables */
1006     pi_trans_red =      p_vout->pi_trans16_red;
1007     pi_trans_green =    p_vout->pi_trans16_green;
1008     pi_trans_blue =     p_vout->pi_trans16_blue;
1009
1010     /* Set the base pointers and transformation parameters */
1011     p_y =               p_pic->p_y;
1012     p_u =               p_pic->p_u;
1013     p_v =               p_pic->p_v;
1014     i_width =           p_pic->i_width;
1015     i_height =          p_pic->i_height;
1016     i_chroma_width =    i_width / 2;
1017     i_eol_offset =      p_vout->i_bytes_per_line / 2 - i_width;
1018
1019     /* Get base adress for destination image */
1020     pi_pic = (u16 *)vout_SysGetPicture( p_vout );
1021
1022     /* Do YUV transformation - the loops are repeated for optimization */
1023     switch( p_pic->i_type )
1024     {
1025     case YUV_420_PICTURE:                   /* 15 or 16 bpp 420 transformation */
1026 #ifdef HAVE_MMX
1027         vout_YUV420_16_MMX( p_y, p_u, p_v,
1028                             i_width, i_height,
1029                             i_width, i_chroma_width,
1030                             0, (u8 *) pi_pic,
1031                             0, 0, p_vout->i_bytes_per_line,
1032                             p_vout->i_screen_depth == 15 );
1033 #else
1034         YUV_TRANSFORM( 420,
1035                        pi_trans_red,
1036                        pi_trans_green,
1037                        pi_trans_blue,
1038                        pi_pic );
1039 #endif
1040         break;
1041     case YUV_422_PICTURE:                   /* 15 or 16 bpp 422 transformation */
1042         YUV_TRANSFORM( 422,
1043                        pi_trans_red,
1044                        pi_trans_green,
1045                        pi_trans_blue,
1046                        pi_pic );
1047         break;
1048     case YUV_444_PICTURE:                   /* 15 or 16 bpp 444 transformation */
1049         YUV_TRANSFORM( 444,
1050                        pi_trans_red,
1051                        pi_trans_green,
1052                        pi_trans_blue,
1053                        pi_pic );
1054         break;
1055     }
1056 }
1057
1058 /*******************************************************************************
1059  * RenderYUV32Picture: render a 24 or 32 bpp YUV picture
1060  *******************************************************************************
1061  * Performs the YUV convertion. The picture sent to this function should only
1062  * have YUV_420, YUV_422 or YUV_444 types.
1063  *******************************************************************************/
1064 static void RenderYUV32Picture( vout_thread_t *p_vout, picture_t *p_pic )
1065 {
1066     int         i_crv, i_cbu, i_cgu, i_cgv;     /* transformation coefficients */
1067     int         i_pic_x, i_pic_y;                /* x,y coordinates in picture */
1068     int         i_y, i_u, i_v;                           /* Y, U and V samples */
1069     int         i_width, i_height;                             /* picture size */
1070     int         i_chroma_width;                                /* chroma width */
1071     int         i_eol_offset;          /* pixels from end of line to next line */
1072     yuv_data_t *p_y;                                     /* Y data base adress */
1073     yuv_data_t *p_u;                                     /* U data base adress */
1074     yuv_data_t *p_v;                                     /* V data base adress */
1075     u32 *       pi_pic;                 /* base adress for destination picture */
1076     u32 *       pi_trans_red;                      /* red transformation table */
1077     u32 *       pi_trans_green;                  /* green transformation table */
1078     u32 *       pi_trans_blue;                    /* blue transformation table */
1079
1080     /* Choose transformation matrix coefficients */
1081     i_crv = MATRIX_COEFFICIENTS_TABLE[p_pic->i_matrix_coefficients][0];
1082     i_cbu = MATRIX_COEFFICIENTS_TABLE[p_pic->i_matrix_coefficients][1];
1083     i_cgu = MATRIX_COEFFICIENTS_TABLE[p_pic->i_matrix_coefficients][2];
1084     i_cgv = MATRIX_COEFFICIENTS_TABLE[p_pic->i_matrix_coefficients][3];
1085
1086     /* Choose the conversions tables */
1087     pi_trans_red =      p_vout->pi_trans32_red;
1088     pi_trans_green =    p_vout->pi_trans32_green;
1089     pi_trans_blue =     p_vout->pi_trans32_blue;
1090
1091     /* Set the base pointers and transformation parameters */
1092     p_y =               p_pic->p_y;
1093     p_u =               p_pic->p_u;
1094     p_v =               p_pic->p_v;
1095     i_width =           p_pic->i_width;
1096     i_height =          p_pic->i_height;
1097     i_chroma_width =    i_width / 2;
1098     i_eol_offset =      p_vout->i_bytes_per_line / p_vout->i_bytes_per_pixel - i_width;
1099
1100     /* Get base adress for destination image */
1101     pi_pic = (u32 *)vout_SysGetPicture( p_vout );
1102
1103     /* Do YUV transformation - the loops are repeated for optimization */
1104     switch( p_pic->i_type )
1105     {
1106     case YUV_420_PICTURE:                   /* 24 or 32 bpp 420 transformation */
1107         YUV_TRANSFORM( 420,
1108                        pi_trans_red,
1109                        pi_trans_green,
1110                        pi_trans_blue,
1111                        pi_pic );
1112         break;
1113     case YUV_422_PICTURE:                   /* 24 or 32 bpp 422 transformation */
1114         YUV_TRANSFORM( 422,
1115                        pi_trans_red,
1116                        pi_trans_green,
1117                        pi_trans_blue,
1118                        pi_pic );
1119         break;
1120     case YUV_444_PICTURE:                   /* 24 or 32 bpp 444 transformation */
1121         YUV_TRANSFORM( 444,
1122                        pi_trans_red,
1123                        pi_trans_green,
1124                        pi_trans_blue,
1125                        pi_pic );
1126         break;
1127     }
1128 }
1129
1130 /*******************************************************************************
1131  * RenderInfo: print additionnal informations on a picture
1132  *******************************************************************************
1133  * This function will add informations such as fps and buffer size on a picture
1134  *******************************************************************************/
1135 static void RenderInfo( vout_thread_t *p_vout )
1136 {
1137     char        psz_buffer[256];                              /* string buffer */
1138
1139 #ifdef STATS
1140     /* Print FPS rate */
1141     if( p_vout->c_pictures > VOUT_FPS_SAMPLES )
1142     {
1143         sprintf( psz_buffer, "%.2f fps", (double) VOUT_FPS_SAMPLES * 1000000 /
1144                  ( p_vout->fps_sample[ (p_vout->i_fps_index + (VOUT_FPS_SAMPLES - 1)) %
1145                                      VOUT_FPS_SAMPLES ] -
1146                    p_vout->fps_sample[ p_vout->i_fps_index ] ) );
1147         vout_SysPrint( p_vout, p_vout->i_width, 0, 1, -1, psz_buffer );
1148     }
1149
1150     /* Print statistics */
1151     sprintf( psz_buffer, "%ld pictures, %.1f %% idle loops", p_vout->c_pictures,
1152              (double) p_vout->c_idle_loops * 100 / p_vout->c_loops );
1153     vout_SysPrint( p_vout, 0, 0, -1, -1, psz_buffer );
1154 #endif
1155
1156 #ifdef DEBUG
1157     /* Print heap size  */
1158     sprintf( psz_buffer, "video heap size: %d (%.1f %%)", p_vout->i_pictures,
1159              (double) p_vout->i_pictures * 100 / VOUT_MAX_PICTURES );
1160     vout_SysPrint( p_vout, 0, p_vout->i_height, -1, 1, psz_buffer );
1161 #endif
1162
1163 #ifdef DEBUG_VIDEO
1164     /* Print rendering statistics */
1165     sprintf( psz_buffer, "picture rendering time: %lu us",
1166              (unsigned long) p_vout->picture_render_time );
1167     vout_SysPrint( p_vout, p_vout->i_width, p_vout->i_height, 1, 1, psz_buffer );
1168 #endif
1169 }
1170
1171