video_output.c 50.5 KB
Newer Older
Michel Kaempf's avatar
Michel Kaempf committed
1 2
/*******************************************************************************
 * video_output.c : video output thread
3
 * (c)2000 VideoLAN
Michel Kaempf's avatar
Michel Kaempf committed
4 5 6 7 8 9 10 11 12 13 14 15 16
 *******************************************************************************
 * This module describes the programming interface for video output threads.
 * It includes functions allowing to open a new thread, send pictures to a
 * thread, and destroy a previously oppenned video output thread.
 *******************************************************************************/

/*******************************************************************************
 * Preamble
 *******************************************************************************/
#include <errno.h> 
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
Vincent Seguin's avatar
Vincent Seguin committed
17 18

#ifdef VIDEO_X11
19
#include <X11/Xlib.h>                           /* for video_sys.h in X11 mode */
Vincent Seguin's avatar
Vincent Seguin committed
20
#endif
Michel Kaempf's avatar
Michel Kaempf committed
21 22 23 24

#include "common.h"
#include "config.h"
#include "mtime.h"
25
#include "vlc_thread.h"
Michel Kaempf's avatar
Michel Kaempf committed
26 27
#include "video.h"
#include "video_output.h"
Vincent Seguin's avatar
Vincent Seguin committed
28 29
#include "video_sys.h"
#include "intf_msg.h"
30
#include "main.h"
Vincent Seguin's avatar
Vincent Seguin committed
31 32 33 34

/*******************************************************************************
 * Macros
 *******************************************************************************/
35 36

/* CLIP_BYTE: return value if between 0 and 255, else return nearest boundary 
37
 * (0 or 255), used to build translations tables */
Vincent Seguin's avatar
Vincent Seguin committed
38 39
#define CLIP_BYTE( i_val ) ( (i_val < 0) ? 0 : ((i_val > 255) ? 255 : i_val) )

40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
/* YUV_GRAYSCALE: parametric macro for YUV grayscale transformation.
 * Due to the high performance need of this loop, all possible conditions 
 * evaluations are made outside the transformation loop. However, the code does 
 * not change much for two different loops. This macro allows to change slightly
 * the content of the loop without having to copy and paste code. It is used in 
 * RenderYUVPicture function. */
#define YUV_GRAYSCALE( TRANS_RED, TRANS_GREEN, TRANS_BLUE, P_PIC )      \
/* Main loop */                                                         \
for (i_pic_y=0; i_pic_y < p_pic->i_height ; i_pic_y++)                  \
{                                                                       \
    for (i_pic_x=0; i_pic_x< p_pic->i_width; i_pic_x++)                 \
    {                                                                   \
        i_y = *p_y++;                                                   \
        *P_PIC++ = TRANS_RED[i_y] | TRANS_GREEN[i_y] | TRANS_BLUE[i_y]; \
    }                                                                   \
    /* Skip until beginning of next line */                             \
    P_PIC += i_eol_offset;                                              \
}                                                                       

59 60 61 62 63 64
/* YUV_TRANSFORM: parametric macro for YUV transformation.
 * Due to the high performance need of this loop, all possible conditions 
 * evaluations are made outside the transformation loop. However, the code does 
 * not change much for two different loops. This macro allows to change slightly
 * the content of the loop without having to copy and paste code. It is used in 
 * RenderYUVPicture function. */
65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92
#define YUV_TRANSFORM( CHROMA, TRANS_RED, TRANS_GREEN, TRANS_BLUE, P_PIC ) \
/* Main loop */                                                         \
for (i_pic_y=0; i_pic_y < p_pic->i_height ; i_pic_y++)                  \
{                                                                       \
    for (i_pic_x=0; i_pic_x< p_pic->i_width; i_pic_x+=2)                \
    {                                                                   \
        /* First sample (complete) */                                   \
        i_y = 76309 * *p_y++ - 1188177;                                 \
        i_u = *p_u++ - 128;                                             \
        i_v = *p_v++ - 128;                                             \
        *P_PIC++ =                                                      \
            TRANS_RED   [(i_y+i_crv*i_v)                >>16] |         \
            TRANS_GREEN [(i_y-i_cgu*i_u-i_cgv*i_v)      >>16] |         \
            TRANS_BLUE  [(i_y+i_cbu*i_u)                >>16];          \
        i_y = 76309 * *p_y++ - 1188177;                                 \
        /* Second sample (partial) */                                   \
        if( CHROMA == 444 )                                             \
        {                                                               \
            i_u = *p_u++ - 128;                                         \
            i_v = *p_v++ - 128;                                         \
        }                                                               \
        *P_PIC++ =                                                      \
            TRANS_RED   [(i_y+i_crv*i_v)                >>16] |         \
            TRANS_GREEN [(i_y-i_cgu*i_u-i_cgv*i_v)      >>16] |         \
            TRANS_BLUE  [(i_y+i_cbu*i_u)                >>16];          \
    }                                                                   \
    if( (CHROMA == 420) && !(i_pic_y & 0x1) )                           \
    {                                                                   \
93 94
        p_u -= i_chroma_width;                                          \
        p_v -= i_chroma_width;                                          \
95 96
    }                                                                   \
    /* Skip until beginning of next line */                             \
97
    P_PIC += i_eol_offset;                                              \
98 99
}

Vincent Seguin's avatar
Vincent Seguin committed
100 101 102
/*******************************************************************************
 * Constants
 *******************************************************************************/
Michel Kaempf's avatar
Michel Kaempf committed
103

Vincent Seguin's avatar
Vincent Seguin committed
104
/* RGB/YUV inversion matrix (ISO/IEC 13818-2 section 6.3.6, table 6.9) */
105
const int MATRIX_COEFFICIENTS_TABLE[8][4] =
Vincent Seguin's avatar
Vincent Seguin committed
106 107 108 109 110 111 112 113 114 115 116
{
  {117504, 138453, 13954, 34903},       /* no sequence_display_extension */
  {117504, 138453, 13954, 34903},       /* ITU-R Rec. 709 (1990) */
  {104597, 132201, 25675, 53279},       /* unspecified */
  {104597, 132201, 25675, 53279},       /* reserved */
  {104448, 132798, 24759, 53109},       /* FCC */
  {104597, 132201, 25675, 53279},       /* ITU-R Rec. 624-4 System B, G */
  {104597, 132201, 25675, 53279},       /* SMPTE 170M */
  {117579, 136230, 16907, 35559}        /* SMPTE 240M (1987) */
};

117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138
/*******************************************************************************
 * External prototypes
 *******************************************************************************/
#ifdef HAVE_MMX
/* YUV transformations for MMX - in yuv-mmx.S 
 *      p_y, p_u, p_v:          Y U and V planes
 *      i_width, i_height:      frames dimensions (pixels)
 *      i_ypitch, i_vpitch:     Y and V lines sizes (bytes)
 *      i_aspect:               vertical aspect factor
 *      pi_pic:                 RGB frame
 *      i_dci_offset:           ?? x offset for left image border
 *      i_offset_to_line_0:     ?? x offset for left image border
 *      i_pitch:                RGB line size (bytes)
 *      i_colortype:            0 for 565, 1 for 555 */
void vout_YUV420_16_MMX( u8* p_y, u8* p_u, u8 *p_v, 
                         unsigned int i_width, unsigned int i_height,
                         unsigned int i_ypitch, unsigned int i_vpitch,
                         unsigned int i_aspect, u8 *pi_pic, 
                         u32 i_dci_offset, u32 i_offset_to_line_0,
                         int CCOPitch, int i_colortype );
#endif

Vincent Seguin's avatar
Vincent Seguin committed
139
/*******************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
140
 * Local prototypes
Vincent Seguin's avatar
Vincent Seguin committed
141
 *******************************************************************************/
142 143 144 145 146 147 148 149 150
static int      InitThread              ( vout_thread_t *p_vout );
static void     RunThread               ( vout_thread_t *p_vout );
static void     ErrorThread             ( vout_thread_t *p_vout );
static void     EndThread               ( vout_thread_t *p_vout );
static void     RenderPicture           ( vout_thread_t *p_vout, picture_t *p_pic );
static void     RenderYUVGrayPicture    ( vout_thread_t *p_vout, picture_t *p_pic );
static void     RenderYUV16Picture      ( vout_thread_t *p_vout, picture_t *p_pic );
static void     RenderYUV32Picture      ( vout_thread_t *p_vout, picture_t *p_pic );
static void     RenderInfo              ( vout_thread_t *p_vout );
151
static int      RenderIdle              ( vout_thread_t *p_vout, int i_level );
Michel Kaempf's avatar
Michel Kaempf committed
152 153 154 155 156 157 158

/*******************************************************************************
 * vout_CreateThread: creates a new video output thread
 *******************************************************************************
 * This function creates a new video output thread, and returns a pointer
 * to its description. On error, it returns NULL.
 * If pi_status is NULL, then the function will block until the thread is ready.
159
 * If not, it will be updated using one of the THREAD_* constants.
Michel Kaempf's avatar
Michel Kaempf committed
160
 *******************************************************************************/
Vincent Seguin's avatar
Vincent Seguin committed
161
vout_thread_t * vout_CreateThread               ( 
162
#ifdef VIDEO_X11
163
                                                  char *psz_display, Window root_window, 
Vincent Seguin's avatar
Vincent Seguin committed
164 165 166
#endif
                                                  int i_width, int i_height, int *pi_status 
                                                )
Michel Kaempf's avatar
Michel Kaempf committed
167 168 169 170
{
    vout_thread_t * p_vout;                               /* thread descriptor */
    int             i_status;                                 /* thread status */

171
    /* Allocate descriptor */
Michel Kaempf's avatar
Michel Kaempf committed
172
    p_vout = (vout_thread_t *) malloc( sizeof(vout_thread_t) );
173
    if( p_vout == NULL )
Michel Kaempf's avatar
Michel Kaempf committed
174
    {
175
        intf_ErrMsg("error: %s\n", strerror(ENOMEM));        
Michel Kaempf's avatar
Michel Kaempf committed
176 177
        return( NULL );
    }
178 179 180

    /* Initialize some fields used by the system-dependant method - these fields will
     * probably be modified by the method */
Vincent Seguin's avatar
Vincent Seguin committed
181 182 183
#ifdef DEBUG
    p_vout->b_info              = 1;    
#else
184
    p_vout->b_info              = 0;    
Vincent Seguin's avatar
Vincent Seguin committed
185
#endif
186 187
    p_vout->b_grayscale         = main_GetIntVariable( VOUT_GRAYSCALE_VAR, 
                                                       VOUT_GRAYSCALE_DEFAULT );
188 189
    p_vout->i_width             = i_width;
    p_vout->i_height            = i_height;
190
    p_vout->i_bytes_per_line    = i_width * 2;    
191 192 193 194
    p_vout->i_screen_depth      = 15;
    p_vout->i_bytes_per_pixel   = 2;
    p_vout->f_x_ratio           = 1;
    p_vout->f_y_ratio           = 1;
195
    intf_DbgMsg("wished configuration: %dx%d,%d (%d bytes/pixel, %d bytes/line), ratio %.2f:%.2f, gray=%d\n",
196
                p_vout->i_width, p_vout->i_height, p_vout->i_screen_depth,
197 198
                p_vout->i_bytes_per_pixel, p_vout->i_bytes_per_line,
                p_vout->f_x_ratio, p_vout->f_y_ratio, p_vout->b_grayscale );
199 200 201
   
    /* Create and initialize system-dependant method - this function issues its
     * own error messages */
Vincent Seguin's avatar
Vincent Seguin committed
202 203
    if( vout_SysCreate( p_vout
#if defined(VIDEO_X11)
204
                        , psz_display, root_window 
Vincent Seguin's avatar
Vincent Seguin committed
205 206
#endif
        ) )
Michel Kaempf's avatar
Michel Kaempf committed
207
    {
Vincent Seguin's avatar
Vincent Seguin committed
208 209
      free( p_vout );
      return( NULL );
Michel Kaempf's avatar
Michel Kaempf committed
210
    }
211
    intf_DbgMsg("actual configuration: %dx%d,%d (%d bytes/pixel, %d bytes/line), ratio %.2f:%.2f, gray=%d\n",
212
                p_vout->i_width, p_vout->i_height, p_vout->i_screen_depth,
213 214
                p_vout->i_bytes_per_pixel, p_vout->i_bytes_per_line,
                p_vout->f_x_ratio, p_vout->f_y_ratio, p_vout->b_grayscale );
Vincent Seguin's avatar
Vincent Seguin committed
215
  
216 217 218 219 220 221 222 223 224
    /* Terminate the initialization */
    p_vout->b_die               = 0;
    p_vout->b_error             = 0;    
    p_vout->b_active            = 0;
    p_vout->pi_status           = (pi_status != NULL) ? pi_status : &i_status;
    *p_vout->pi_status          = THREAD_CREATE;    
#ifdef STATS
    p_vout->c_loops             = 0;
    p_vout->c_idle_loops        = 0;
225
    p_vout->c_fps_samples       = 0;
226
#endif      
Michel Kaempf's avatar
Michel Kaempf committed
227 228

    /* Create thread and set locks */
Vincent Seguin's avatar
Vincent Seguin committed
229 230 231
    vlc_mutex_init( &p_vout->lock );
    if( vlc_thread_create( &p_vout->thread_id, "video output", 
			   (void *) RunThread, (void *) p_vout) )
Michel Kaempf's avatar
Michel Kaempf committed
232
    {
233
        intf_ErrMsg("error: %s\n", strerror(ENOMEM));
Vincent Seguin's avatar
Vincent Seguin committed
234
	vout_SysDestroy( p_vout );
Michel Kaempf's avatar
Michel Kaempf committed
235 236 237 238
        free( p_vout );
        return( NULL );
    }   

239 240 241
    intf_Msg("Video: display initialized (%dx%d, %d bpp)\n", 
             p_vout->i_width, p_vout->i_height, p_vout->i_screen_depth );    

Michel Kaempf's avatar
Michel Kaempf committed
242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271
    /* If status is NULL, wait until the thread is created */
    if( pi_status == NULL )
    {
        do
        {            
            msleep( THREAD_SLEEP );
        }while( (i_status != THREAD_READY) && (i_status != THREAD_ERROR) 
                && (i_status != THREAD_FATAL) );
        if( i_status != THREAD_READY )
        {
            return( NULL );            
        }        
    }
    return( p_vout );
}

/*******************************************************************************
 * vout_DestroyThread: destroys a previously created thread
 *******************************************************************************
 * Destroy a terminated thread. 
 * The function will request a destruction of the specified thread. If pi_error
 * is NULL, it will return once the thread is destroyed. Else, it will be 
 * update using one of the THREAD_* constants.
 *******************************************************************************/
void vout_DestroyThread( vout_thread_t *p_vout, int *pi_status )
{  
    int     i_status;                                         /* thread status */

    /* Set status */
    p_vout->pi_status = (pi_status != NULL) ? pi_status : &i_status;
Vincent Seguin's avatar
Vincent Seguin committed
272
    *p_vout->pi_status = THREAD_DESTROY;    
Michel Kaempf's avatar
Michel Kaempf committed
273 274 275 276 277
     
    /* Request thread destruction */
    p_vout->b_die = 1;

    /* If status is NULL, wait until thread has been destroyed */
278
    if( pi_status == NULL )
Michel Kaempf's avatar
Michel Kaempf committed
279 280 281 282 283 284 285 286 287 288
    {
        do
        {
            msleep( THREAD_SLEEP );
        }while( (i_status != THREAD_OVER) && (i_status != THREAD_ERROR) 
                && (i_status != THREAD_FATAL) );   
    }
}

/*******************************************************************************
Vincent Seguin's avatar
Vincent Seguin committed
289
 * vout_DisplayPicture: display a picture
Michel Kaempf's avatar
Michel Kaempf committed
290
 *******************************************************************************
Vincent Seguin's avatar
Vincent Seguin committed
291
 * Remove the reservation flag of a picture, which will cause it to be ready for
292 293
 * display. The picture does not need to be locked, since it is ignored by
 * the output thread if is reserved.
Michel Kaempf's avatar
Michel Kaempf committed
294
 *******************************************************************************/
Vincent Seguin's avatar
Vincent Seguin committed
295
void  vout_DisplayPicture( vout_thread_t *p_vout, picture_t *p_pic )
Michel Kaempf's avatar
Michel Kaempf committed
296
{
297 298 299 300
#ifdef DEBUG_VIDEO
    char        psz_date[MSTRTIME_MAX_SIZE];         /* buffer for date string */
#endif

301
#ifdef DEBUG
302 303 304
    /* Check if picture status is valid */
    if( p_pic->i_status != RESERVED_PICTURE )
    {
305
        intf_DbgMsg("error: picture %d has invalid status %d\n", p_pic, p_pic->i_status );       
306
    }   
307
#endif
Michel Kaempf's avatar
Michel Kaempf committed
308 309

    /* Remove reservation flag */
Vincent Seguin's avatar
Vincent Seguin committed
310
    p_pic->i_status = READY_PICTURE;
Michel Kaempf's avatar
Michel Kaempf committed
311

312 313 314 315 316
#ifdef DEBUG_VIDEO
    /* Send picture informations */
    intf_DbgMsg("picture %p: type=%d, %dx%d, date=%s\n", p_pic, p_pic->i_type, 
                p_pic->i_width,p_pic->i_height, mstrtime( psz_date, p_pic->date ) );    
#endif
Michel Kaempf's avatar
Michel Kaempf committed
317 318 319
}

/*******************************************************************************
Vincent Seguin's avatar
Vincent Seguin committed
320
 * vout_CreatePicture: allocate a picture in the video output heap.
Michel Kaempf's avatar
Michel Kaempf committed
321 322
 *******************************************************************************
 * This function create a reserved image in the video output heap. 
Vincent Seguin's avatar
Vincent Seguin committed
323
 * A null pointer is returned if the function fails. This method provides an
324 325
 * already allocated zone of memory in the picture data fields. It needs locking
 * since several pictures can be created by several producers threads.
Michel Kaempf's avatar
Michel Kaempf committed
326
 *******************************************************************************/
Vincent Seguin's avatar
Vincent Seguin committed
327 328
picture_t *vout_CreatePicture( vout_thread_t *p_vout, int i_type, 
			       int i_width, int i_height, int i_bytes_per_line )
Michel Kaempf's avatar
Michel Kaempf committed
329
{
Vincent Seguin's avatar
Vincent Seguin committed
330 331 332
    int         i_picture;                                    /* picture index */
    picture_t * p_free_picture = NULL;                   /* first free picture */    
    picture_t * p_destroyed_picture = NULL;         /* first destroyed picture */    
Michel Kaempf's avatar
Michel Kaempf committed
333

Vincent Seguin's avatar
Vincent Seguin committed
334 335
    /* Get lock */
    vlc_mutex_lock( &p_vout->lock );
Michel Kaempf's avatar
Michel Kaempf committed
336

Vincent Seguin's avatar
Vincent Seguin committed
337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355
    /* 
     * Look for an empty place 
     */
    for( i_picture = 0; 
         i_picture < VOUT_MAX_PICTURES; 
         i_picture++ )
    {
	if( p_vout->p_picture[i_picture].i_status == DESTROYED_PICTURE )
	{
	    /* Picture is marked for destruction, but is still allocated */
	    if( (p_vout->p_picture[i_picture].i_type           == i_type)   &&
		(p_vout->p_picture[i_picture].i_height         == i_height) &&
		(p_vout->p_picture[i_picture].i_bytes_per_line == i_bytes_per_line) )
	    {
		/* Memory size do match : memory will not be reallocated, and function
                 * can end immediately - this is the best possible case, since no
                 * memory allocation needs to be done */
		p_vout->p_picture[i_picture].i_width  = i_width;
		p_vout->p_picture[i_picture].i_status = RESERVED_PICTURE;
356 357 358 359
#ifdef DEBUG_VIDEO
                intf_DbgMsg("picture %p (in destroyed picture slot)\n", 
                            &p_vout->p_picture[i_picture] );                
#endif
Vincent Seguin's avatar
Vincent Seguin committed
360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375
		vlc_mutex_unlock( &p_vout->lock );
		return( &p_vout->p_picture[i_picture] );
	    }
	    else if( p_destroyed_picture == NULL )
	    {
		/* Memory size do not match, but picture index will be kept in
		 * case no other place are left */
		p_destroyed_picture = &p_vout->p_picture[i_picture];                
	    }	    
	}
        else if( (p_free_picture == NULL) && 
                 (p_vout->p_picture[i_picture].i_status == FREE_PICTURE ))
        {
	    /* Picture is empty and ready for allocation */
            p_free_picture = &p_vout->p_picture[i_picture];            
        }
Michel Kaempf's avatar
Michel Kaempf committed
376 377
    }

Vincent Seguin's avatar
Vincent Seguin committed
378 379 380 381 382 383 384
    /* If no free picture is available, use a destroyed picture */
    if( (p_free_picture == NULL) && (p_destroyed_picture != NULL ) )
    { 
	/* No free picture or matching destroyed picture has been found, but
	 * a destroyed picture is still avalaible */
        free( p_destroyed_picture->p_data );        
        p_free_picture = p_destroyed_picture;        
Michel Kaempf's avatar
Michel Kaempf committed
385 386
    }

Vincent Seguin's avatar
Vincent Seguin committed
387 388 389 390 391 392 393
    /*
     * Prepare picture
     */
    if( p_free_picture != NULL )
    {
        /* Allocate memory */
        switch( i_type )
Michel Kaempf's avatar
Michel Kaempf committed
394
        {
395
        case YUV_420_PICTURE:                   /* YUV picture: bits per pixel */
396
        case YUV_422_PICTURE:
Vincent Seguin's avatar
Vincent Seguin committed
397 398
        case YUV_444_PICTURE:
            p_free_picture->p_data = malloc( 3 * i_height * i_bytes_per_line );                
399 400 401
            p_free_picture->p_y = (yuv_data_t *) p_free_picture->p_data;
            p_free_picture->p_u = (yuv_data_t *)(p_free_picture->p_data + i_height * i_bytes_per_line);
            p_free_picture->p_v = (yuv_data_t *)(p_free_picture->p_data + i_height * i_bytes_per_line * 2);
Vincent Seguin's avatar
Vincent Seguin committed
402 403 404
            break;                
#ifdef DEBUG
        default:
405
            intf_DbgMsg("error: unknown picture type %d\n", i_type );
406 407
            p_free_picture->p_data   =  NULL;            
            break;            
Vincent Seguin's avatar
Vincent Seguin committed
408
#endif    
Michel Kaempf's avatar
Michel Kaempf committed
409 410
        }

Vincent Seguin's avatar
Vincent Seguin committed
411 412 413
        if( p_free_picture->p_data != NULL )
        {        
            /* Copy picture informations */
414 415 416 417 418 419 420
            p_free_picture->i_type                      = i_type;
            p_free_picture->i_status                    = RESERVED_PICTURE;
            p_free_picture->i_width                     = i_width;
            p_free_picture->i_height                    = i_height;
            p_free_picture->i_bytes_per_line            = i_bytes_per_line;
            p_free_picture->i_refcount                  = 0;            
            p_free_picture->i_matrix_coefficients       = 1; 
Vincent Seguin's avatar
Vincent Seguin committed
421 422 423 424
        }
        else
        {
            /* Memory allocation failed : set picture as empty */
425 426 427 428
            p_free_picture->i_type   =  EMPTY_PICTURE;            
            p_free_picture->i_status =  FREE_PICTURE;            
            p_free_picture =            NULL;            
            intf_ErrMsg("warning: %s\n", strerror( ENOMEM ) );            
Vincent Seguin's avatar
Vincent Seguin committed
429 430
        }
        
431 432 433
#ifdef DEBUG_VIDEO
        intf_DbgMsg("picture %p (in free picture slot)\n", p_free_picture );        
#endif
Vincent Seguin's avatar
Vincent Seguin committed
434 435
        vlc_mutex_unlock( &p_vout->lock );
        return( p_free_picture );
Michel Kaempf's avatar
Michel Kaempf committed
436
    }
Vincent Seguin's avatar
Vincent Seguin committed
437 438
    
    // No free or destroyed picture could be found
439
    intf_DbgMsg( "warning: heap is full\n" );
Vincent Seguin's avatar
Vincent Seguin committed
440 441
    vlc_mutex_unlock( &p_vout->lock );
    return( NULL );
Michel Kaempf's avatar
Michel Kaempf committed
442 443 444
}

/*******************************************************************************
445
 * vout_DestroyPicture: remove a permanent or reserved picture from the heap
Michel Kaempf's avatar
Michel Kaempf committed
446 447
 *******************************************************************************
 * This function frees a previously reserved picture or a permanent
Vincent Seguin's avatar
Vincent Seguin committed
448 449
 * picture. It is meant to be used when the construction of a picture aborted.
 * Note that the picture will be destroyed even if it is linked !
450 451
 * This function does not need locking since reserved pictures are ignored by
 * the output thread.
Michel Kaempf's avatar
Michel Kaempf committed
452
 *******************************************************************************/
Vincent Seguin's avatar
Vincent Seguin committed
453
void vout_DestroyPicture( vout_thread_t *p_vout, picture_t *p_pic )
Michel Kaempf's avatar
Michel Kaempf committed
454
{
455
#ifdef DEBUG
456 457 458
   /* Check if picture status is valid */
   if( p_pic->i_status != RESERVED_PICTURE )
   {
459
       intf_DbgMsg("error: picture %d has invalid status %d\n", p_pic, p_pic->i_status );       
460 461 462
   }   
#endif

Vincent Seguin's avatar
Vincent Seguin committed
463
    p_pic->i_status = DESTROYED_PICTURE;
464 465 466 467

#ifdef DEBUG_VIDEO
    intf_DbgMsg("picture %p\n", p_pic);    
#endif
Michel Kaempf's avatar
Michel Kaempf committed
468 469 470 471 472 473
}

/*******************************************************************************
 * vout_LinkPicture: increment reference counter of a picture
 *******************************************************************************
 * This function increment the reference counter of a picture in the video
474
 * heap. It needs a lock since several producer threads can access the picture.
Michel Kaempf's avatar
Michel Kaempf committed
475 476 477
 *******************************************************************************/
void vout_LinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
{
Vincent Seguin's avatar
Vincent Seguin committed
478
    vlc_mutex_lock( &p_vout->lock );
Michel Kaempf's avatar
Michel Kaempf committed
479
    p_pic->i_refcount++;
480
    vlc_mutex_unlock( &p_vout->lock );
481 482 483 484

#ifdef DEBUG_VIDEO
    intf_DbgMsg("picture %p\n", p_pic);    
#endif
Michel Kaempf's avatar
Michel Kaempf committed
485 486 487 488 489 490 491 492 493
}

/*******************************************************************************
 * vout_UnlinkPicture: decrement reference counter of a picture
 *******************************************************************************
 * This function decrement the reference counter of a picture in the video heap.
 *******************************************************************************/
void vout_UnlinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
{
Vincent Seguin's avatar
Vincent Seguin committed
494
    vlc_mutex_lock( &p_vout->lock );
Michel Kaempf's avatar
Michel Kaempf committed
495
    p_pic->i_refcount--;
Vincent Seguin's avatar
Vincent Seguin committed
496
    if( (p_pic->i_refcount == 0) && (p_pic->i_status == DISPLAYED_PICTURE) )
Michel Kaempf's avatar
Michel Kaempf committed
497
    {
Vincent Seguin's avatar
Vincent Seguin committed
498
	p_pic->i_status = DESTROYED_PICTURE;
Michel Kaempf's avatar
Michel Kaempf committed
499
    }
500
    vlc_mutex_unlock( &p_vout->lock );
501 502 503 504

#ifdef DEBUG_VIDEO
    intf_DbgMsg("picture %p\n", p_pic);    
#endif
Michel Kaempf's avatar
Michel Kaempf committed
505 506 507 508 509 510 511 512 513 514 515 516 517 518
}

/* following functions are local */

/*******************************************************************************
 * InitThread: initialize video output thread
 *******************************************************************************
 * This function is called from RunThread and performs the second step of the
 * initialization. It returns 0 on success. Note that the thread's flag are not
 * modified inside this function.
 *******************************************************************************/
static int InitThread( vout_thread_t *p_vout )
{
    int     i_index;                                          /* generic index */    
Vincent Seguin's avatar
Vincent Seguin committed
519
    int     i_pixel_size;     /* pixel size, in bytes, for translations tables */    
Michel Kaempf's avatar
Michel Kaempf committed
520 521 522 523 524

    /* Update status */
    *p_vout->pi_status = THREAD_START;    
    
    /* Initialize pictures */    
Vincent Seguin's avatar
Vincent Seguin committed
525
    for( i_index = 0; i_index < VOUT_MAX_PICTURES; i_index++)
Michel Kaempf's avatar
Michel Kaempf committed
526
    {
Vincent Seguin's avatar
Vincent Seguin committed
527 528
        p_vout->p_picture[i_index].i_type  = EMPTY_PICTURE;
        p_vout->p_picture[i_index].i_status= FREE_PICTURE;
Michel Kaempf's avatar
Michel Kaempf committed
529 530
    }

531 532
    /* Initialize output method - this function issues its own error messages */
    if( vout_SysInit( p_vout ) )
Michel Kaempf's avatar
Michel Kaempf committed
533 534 535 536 537
    {
        *p_vout->pi_status = THREAD_ERROR;        
        return( 1 );
    } 

Vincent Seguin's avatar
Vincent Seguin committed
538 539 540 541 542 543 544 545
    /* Allocate translation tables */
    switch( p_vout->i_bytes_per_pixel )
    {
    case 2:                   /* 15 or 16 bpp, use 16 bits translations tables */        
        i_pixel_size = sizeof( u16 );        
        break;                
    case 3:                   /* 24 or 32 bpp, use 32 bits translations tables */        
    case 4:
546
#ifndef DEBUG
547
    default:        
548
#endif
Vincent Seguin's avatar
Vincent Seguin committed
549
        i_pixel_size = sizeof( u32 );
550 551 552
        break;
#ifdef DEBUG
    default:
553
        intf_DbgMsg("error: invalid bytes_per_pixel %d\n", p_vout->i_bytes_per_pixel );
554 555 556
        i_pixel_size = sizeof( u32 );        
        break;              
#endif
Vincent Seguin's avatar
Vincent Seguin committed
557
    }
558 559 560 561 562 563
    p_vout->pi_trans32_red =   (u32 *)p_vout->pi_trans16_red =   
        (u16 *)malloc( 1024 * i_pixel_size );
    p_vout->pi_trans32_green = (u32 *)p_vout->pi_trans16_green = 
        (u16 *)malloc( 1024 * i_pixel_size );
    p_vout->pi_trans32_blue =  (u32 *)p_vout->pi_trans16_blue =  
        (u16 *)malloc( 1024 * i_pixel_size );
Vincent Seguin's avatar
Vincent Seguin committed
564 565 566 567
    if( (p_vout->pi_trans16_red == NULL) || 
        (p_vout->pi_trans16_green == NULL ) ||
        (p_vout->pi_trans16_blue == NULL ) )
    {
568
        intf_ErrMsg("error: %s\n", strerror(ENOMEM) );
569
        *p_vout->pi_status = THREAD_ERROR;   
Vincent Seguin's avatar
Vincent Seguin committed
570 571 572 573 574 575 576 577 578 579 580 581 582
        if( p_vout->pi_trans16_red != NULL )
        {
            free( p_vout->pi_trans16_red );
        }
        if( p_vout->pi_trans16_green != NULL )
        {
            free( p_vout->pi_trans16_green );
        }
        if( p_vout->pi_trans16_blue != NULL )
        {
            free( p_vout->pi_trans16_blue );
        }
        return( 1 );
583
    }              
Vincent Seguin's avatar
Vincent Seguin committed
584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607
    
    /* Translate translation tables */
    p_vout->pi_trans16_red      += 384;
    p_vout->pi_trans16_green    += 384;
    p_vout->pi_trans16_blue     += 384;
    p_vout->pi_trans32_red      += 384;
    p_vout->pi_trans32_green    += 384;
    p_vout->pi_trans32_blue     += 384;

    /* Build translation tables */
    switch( p_vout->i_screen_depth )
    {
    case 15:
        for( i_index = -384; i_index < 640; i_index++) 
        {
            p_vout->pi_trans16_red[i_index]     = (CLIP_BYTE( i_index ) & 0xf8)<<7;
            p_vout->pi_trans16_green[i_index]   = (CLIP_BYTE( i_index ) & 0xf8)<<2;
            p_vout->pi_trans16_blue[i_index]    =  CLIP_BYTE( i_index ) >> 3;
        }
        break;        
    case 16:
        for( i_index = -384; i_index < 640; i_index++) 
        {
            p_vout->pi_trans16_red[i_index]     = (CLIP_BYTE( i_index ) & 0xf8)<<8;
608
            p_vout->pi_trans16_green[i_index]   = (CLIP_BYTE( i_index ) & 0xfc)<<3;
Vincent Seguin's avatar
Vincent Seguin committed
609 610
            p_vout->pi_trans16_blue[i_index]    =  CLIP_BYTE( i_index ) >> 3;
        }
611
        break;        
Vincent Seguin's avatar
Vincent Seguin committed
612 613 614 615 616 617 618 619 620
    case 24:
    case 32:        
        for( i_index = -384; i_index < 640; i_index++) 
        {
            p_vout->pi_trans32_red[i_index]     =  CLIP_BYTE( i_index ) <<16;
            p_vout->pi_trans32_green[i_index]   =  CLIP_BYTE( i_index ) <<8;
            p_vout->pi_trans32_blue[i_index]    =  CLIP_BYTE( i_index ) ;
        }
        break;        
621 622
#ifdef DEBUG
    default:
623
        intf_DbgMsg("error: invalid screen depth %d\n", p_vout->i_screen_depth );
624 625
        break;      
#endif
Vincent Seguin's avatar
Vincent Seguin committed
626 627
    }
    
Michel Kaempf's avatar
Michel Kaempf committed
628
    /* Mark thread as running and return */
629 630
    p_vout->b_active =          1;    
    *p_vout->pi_status =        THREAD_READY;    
631
    intf_DbgMsg("thread ready\n");    
632
    return( 0 );    
Michel Kaempf's avatar
Michel Kaempf committed
633 634 635 636 637 638 639 640 641 642 643 644 645
}

/*******************************************************************************
 * RunThread: video output thread
 *******************************************************************************
 * Video output thread. This function does only returns when the thread is
 * terminated. It handles the pictures arriving in the video heap and the
 * display device events.
 *******************************************************************************/
static void RunThread( vout_thread_t *p_vout)
{
    int             i_picture;                                /* picture index */
    int             i_err;                                       /* error code */
646
    int             i_idle_level = 0;                            /* idle level */
Michel Kaempf's avatar
Michel Kaempf committed
647
    mtime_t         current_date;                              /* current date */
648
    mtime_t         pic_date = 0;                              /* picture date */    
649 650 651 652
    mtime_t         last_date = 0;                        /* last picture date */    
    boolean_t       b_display;                                 /* display flag */    
    picture_t *     p_pic;                                  /* picture pointer */
     
Michel Kaempf's avatar
Michel Kaempf committed
653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668
    /* 
     * Initialize thread and free configuration 
     */
    p_vout->b_error = InitThread( p_vout );
    if( p_vout->b_error )
    {
        free( p_vout );                                  /* destroy descriptor */
        return;        
    }    

    /*
     * Main loop - it is not executed if an error occured during
     * initialization
     */
    while( (!p_vout->b_die) && (!p_vout->b_error) )
    {
Vincent Seguin's avatar
Vincent Seguin committed
669
        /* 
670 671 672
	 * Find the picture to display - this operation does not need lock,
         * since only READY_PICTURES are handled 
         */
673
        p_pic = NULL;         
Vincent Seguin's avatar
Vincent Seguin committed
674 675 676 677
	for( i_picture = 0; i_picture < VOUT_MAX_PICTURES; i_picture++ )
	{
	    if( (p_vout->p_picture[i_picture].i_status == READY_PICTURE) &&
		( (p_pic == NULL) || 
678
		  (p_vout->p_picture[i_picture].date < pic_date) ) )
Vincent Seguin's avatar
Vincent Seguin committed
679 680
	    {
		p_pic = &p_vout->p_picture[i_picture];
681
                pic_date = p_pic->date;                
Vincent Seguin's avatar
Vincent Seguin committed
682 683
	    }
	}
684
        current_date = mdate();
Vincent Seguin's avatar
Vincent Seguin committed
685 686 687 688 689

        /* 
	 * Render picture if any
	 */
        if( p_pic )
Michel Kaempf's avatar
Michel Kaempf committed
690
        {
691 692
#ifdef STATS
            /* Computes FPS rate */
693 694
            p_vout->fps_sample[ p_vout->c_fps_samples++ % VOUT_FPS_SAMPLES ] = pic_date;
#endif	    
695
	    if( pic_date < current_date )
Vincent Seguin's avatar
Vincent Seguin committed
696
	    {
697 698 699 700 701
		/* Picture is late: it will be destroyed and the thread will sleep and
                 * go to next picture */
                vlc_mutex_lock( &p_vout->lock );
                p_pic->i_status = p_pic->i_refcount ? DISPLAYED_PICTURE : DESTROYED_PICTURE;
                vlc_mutex_unlock( &p_vout->lock );
702 703 704
#ifdef DEBUG_VIDEO
		intf_DbgMsg( "warning: late picture %p skipped\n", p_pic );
#endif
705
                p_pic =         NULL;                
Vincent Seguin's avatar
Vincent Seguin committed
706
	    }
707
	    else if( pic_date > current_date + VOUT_DISPLAY_DELAY )
Vincent Seguin's avatar
Vincent Seguin committed
708 709 710 711
	    {
		/* A picture is ready to be rendered, but its rendering date is
		 * far from the current one so the thread will perform an empty loop
		 * as if no picture were found. The picture state is unchanged */
712
                p_pic =         NULL;                
Vincent Seguin's avatar
Vincent Seguin committed
713 714 715 716
	    }
	    else
	    {
		/* Picture has not yet been displayed, and has a valid display
717 718
		 * date : render it, then mark it as displayed */
                if( p_vout->b_active )
719
                {                    
720
                    RenderPicture( p_vout, p_pic );
721
                }                
722 723 724
                vlc_mutex_lock( &p_vout->lock );
                p_pic->i_status = p_pic->i_refcount ? DISPLAYED_PICTURE : DESTROYED_PICTURE;
                vlc_mutex_unlock( &p_vout->lock );
Vincent Seguin's avatar
Vincent Seguin committed
725
	    }
Michel Kaempf's avatar
Michel Kaempf committed
726
        }
727

Vincent Seguin's avatar
Vincent Seguin committed
728 729 730 731 732 733 734 735 736 737 738 739
        /*
         * Check events, sleep and display picture
	 */
        i_err = vout_SysManage( p_vout );
	if( i_err < 0 )
	{
	    /* A fatal error occured, and the thread must terminate immediately,
	     * without displaying anything - setting b_error to 1 cause the
	     * immediate end of the main while() loop. */
	    p_vout->b_error = 1;
	}
	else 
740
	{            
Vincent Seguin's avatar
Vincent Seguin committed
741 742
	    if( p_pic )
	    {
743 744 745 746 747 748 749 750 751 752 753 754
		/* A picture is ready to be displayed : remove blank screen flag */
                last_date =     pic_date;
                i_idle_level =  0;
                b_display =     1;                
                
                /* Render additionnal informations */
                if( p_vout->b_active && p_vout->b_info )
                {
                    RenderInfo( p_vout );    
                }                
                
                /* Sleep until its display date */
755
		mwait( pic_date );
Vincent Seguin's avatar
Vincent Seguin committed
756 757 758
	    }
	    else
	    {
759 760 761 762 763 764 765 766 767 768 769 770
                /* If last picture was a long time ago, increase idle level, reset
                 * date and render idle screen */
                if( !i_err && (current_date - last_date > VOUT_IDLE_DELAY) )
                {       
                    last_date = current_date;                    
                    b_display = p_vout->b_active && RenderIdle( p_vout, i_idle_level++ );
                }
                else
                {
                    b_display = 0;                    
                }
                
Michel Kaempf's avatar
Michel Kaempf committed
771
#ifdef STATS
Vincent Seguin's avatar
Vincent Seguin committed
772 773
		/* Update counters */
		p_vout->c_idle_loops++;
Michel Kaempf's avatar
Michel Kaempf committed
774
#endif
775 776 777

		/* Sleep to wait for new pictures */
		msleep( VOUT_IDLE_SLEEP );
Vincent Seguin's avatar
Vincent Seguin committed
778
	    }
779 780 781 782 783 784

            /* On awakening, send immediately picture to display */
            if( b_display && p_vout->b_active )
            {
                vout_SysDisplay( p_vout );
            }
Vincent Seguin's avatar
Vincent Seguin committed
785
	}
Michel Kaempf's avatar
Michel Kaempf committed
786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802

#ifdef STATS
        /* Update counters */
        p_vout->c_loops++;
#endif
    } 

    /*
     * Error loop
     */
    if( p_vout->b_error )
    {
        ErrorThread( p_vout );        
    }

    /* End of thread */
    EndThread( p_vout );
803
    intf_DbgMsg( "thread end\n" );
Michel Kaempf's avatar
Michel Kaempf committed
804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831
}

/*******************************************************************************
 * ErrorThread: RunThread() error loop
 *******************************************************************************
 * This function is called when an error occured during thread main's loop. The
 * thread can still receive feed, but must be ready to terminate as soon as
 * possible.
 *******************************************************************************/
static void ErrorThread( vout_thread_t *p_vout )
{
    /* Wait until a `die' order */
    while( !p_vout->b_die )
    {
        /* Sleep a while */
        msleep( VOUT_IDLE_SLEEP );                
    }
}

/*******************************************************************************
 * EndThread: thread destruction
 *******************************************************************************
 * This function is called when the thread ends after a sucessfull 
 * initialization.
 *******************************************************************************/
static void EndThread( vout_thread_t *p_vout )
{
    int *   pi_status;                                        /* thread status */
Vincent Seguin's avatar
Vincent Seguin committed
832
    int     i_picture;
Michel Kaempf's avatar
Michel Kaempf committed
833 834 835 836 837
        
    /* Store status */
    pi_status = p_vout->pi_status;    
    *pi_status = THREAD_END;    

Vincent Seguin's avatar
Vincent Seguin committed
838 839 840 841 842 843 844 845
    /* Destroy all remaining pictures */
    for( i_picture = 0; i_picture < VOUT_MAX_PICTURES; i_picture++ )
    {
	if( p_vout->p_picture[i_picture].i_status != FREE_PICTURE )
	{
            free( p_vout->p_picture[i_picture].p_data );
        }
    }
Vincent Seguin's avatar
Vincent Seguin committed
846 847 848 849 850

    /* Destroy translation tables - remeber these tables are translated */    
    free( p_vout->pi_trans16_red - 384 );
    free( p_vout->pi_trans16_green - 384 );
    free( p_vout->pi_trans16_blue - 384 );
Vincent Seguin's avatar
Vincent Seguin committed
851
    
Michel Kaempf's avatar
Michel Kaempf committed
852
    /* Destroy thread structures allocated by InitThread */
Vincent Seguin's avatar
Vincent Seguin committed
853
    vout_SysEnd( p_vout );
854
    vout_SysDestroy( p_vout );
Michel Kaempf's avatar
Michel Kaempf committed
855 856 857 858 859 860 861 862 863 864 865 866
    free( p_vout );

    /* Update status */
    *pi_status = THREAD_OVER;    
}

/*******************************************************************************
 * RenderPicture: render a picture
 *******************************************************************************
 * This function convert a picture from a video heap to a pixel-encoded image
 * and copy it to the current rendering buffer. No lock is required, since the
 * rendered picture has been determined as existant, and will only be destroyed
Vincent Seguin's avatar
Vincent Seguin committed
867
 * by the vout thread later.
868
 * ???? 24 and 32 bpp should probably be separated
Michel Kaempf's avatar
Michel Kaempf committed
869 870 871
 *******************************************************************************/
static void RenderPicture( vout_thread_t *p_vout, picture_t *p_pic )
{
872 873 874 875 876 877 878 879
#ifdef DEBUG_VIDEO
    /* Send picture informations */
    intf_DbgMsg("picture %p\n", p_pic );

    /* Store rendering start date */
    p_vout->picture_render_time = mdate();    
#endif

880 881 882 883 884
    switch( p_pic->i_type )
    {
    case YUV_420_PICTURE:                   /* YUV picture: YUV transformation */        
    case YUV_422_PICTURE:
    case YUV_444_PICTURE:
885 886 887 888 889 890 891 892 893 894 895 896
        if( p_vout->b_grayscale )                                 /* grayscale */
        {
            RenderYUVGrayPicture( p_vout, p_pic );            
        }
        else if( p_vout->i_bytes_per_pixel == 2 )        /* color 15 or 16 bpp */
        {
            RenderYUV16Picture( p_vout, p_pic );        
        }
        else                                             /* color 24 or 32 bpp */
        {
            RenderYUV32Picture( p_vout, p_pic );            
        }
897
        break;        
898 899
#ifdef DEBUG
    default:        
900
        intf_DbgMsg("error: unknown picture type %d\n", p_pic->i_type );
901 902 903
        break;        
#endif
    }
904 905 906 907 908

#ifdef DEBUG_VIDEO
    /* Computes rendering time */
    p_vout->picture_render_time = mdate() - p_vout->picture_render_time;    
#endif
Michel Kaempf's avatar
Michel Kaempf committed
909 910
}

911
/*******************************************************************************
912
 * RenderYUVGrayPicture: render a 15, 16, 24 or 32 bpp YUV picture in grayscale
913
 *******************************************************************************
914 915
 * Performs the YUV convertion. The picture sent to this function should only
 * have YUV_420, YUV_422 or YUV_444 types.
916
 *******************************************************************************/
917
static void RenderYUVGrayPicture( vout_thread_t *p_vout, picture_t *p_pic )
918
{
919 920 921
    int         i_pic_x, i_pic_y;                /* x,y coordinates in picture */
    int         i_width, i_height;                             /* picture size */
    int         i_eol_offset;          /* pixels from end of line to next line */   
922 923
    yuv_data_t *p_y;                                     /* Y data base adress */
    yuv_data_t  i_y;                                               /* Y sample */
924 925 926 927 928 929 930 931 932 933 934 935 936 937
    u16 *       pi_pic16;                 /* destination picture, 15 or 16 bpp */
    u32 *       pi_pic32;                 /* destination picture, 24 or 32 bpp */
    u16 *       pi_trans16_red;                    /* red transformation table */
    u16 *       pi_trans16_green;                /* green transformation table */
    u16 *       pi_trans16_blue;                  /* blue transformation table */
    u32 *       pi_trans32_red;                    /* red transformation table */
    u32 *       pi_trans32_green;                /* green transformation table */
    u32 *       pi_trans32_blue;                  /* blue transformation table */
 
    /* Set the base pointers and transformation parameters */
    p_y =               p_pic->p_y;
    i_width =           p_pic->i_width;
    i_height =          p_pic->i_height;
    i_eol_offset =      p_vout->i_bytes_per_line / p_vout->i_bytes_per_pixel - i_width;
938

939 940
    /* Get base adress for destination image and translation tables, then
     * transform image */
941 942 943 944
    switch( p_vout->i_screen_depth )
    {
    case 15:
    case 16:
945 946 947 948 949 950 951
        pi_trans16_red =      p_vout->pi_trans16_red;
        pi_trans16_green =    p_vout->pi_trans16_green;
        pi_trans16_blue =     p_vout->pi_trans16_blue;        
        pi_pic16 = (u16 *) vout_SysGetPicture( p_vout );

        YUV_GRAYSCALE( pi_trans16_red, pi_trans16_green, pi_trans16_blue,
                       pi_pic16 );
952
        break;        
953
    case 24:        
954
    case 32:
955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041
        pi_trans32_red =      p_vout->pi_trans32_red;
        pi_trans32_green =    p_vout->pi_trans32_green;
        pi_trans32_blue =     p_vout->pi_trans32_blue;    
        pi_pic32 = (u32 *) vout_SysGetPicture( p_vout );

        YUV_GRAYSCALE( pi_trans32_red, pi_trans32_green, pi_trans32_blue,
                       pi_pic32 );
        break;        
#ifdef DEBUG
    default:
        intf_DbgMsg("error: invalid screen depth %d\n", p_vout->i_screen_depth );
        break;    
#endif      
    }
}


/*******************************************************************************
 * RenderYUV16Picture: render a 15 or 16 bpp YUV picture
 *******************************************************************************
 * Performs the YUV convertion. The picture sent to this function should only
 * have YUV_420, YUV_422 or YUV_444 types.
 *******************************************************************************/
static void RenderYUV16Picture( vout_thread_t *p_vout, picture_t *p_pic )
{
    int         i_crv, i_cbu, i_cgu, i_cgv;     /* transformation coefficients */
    int         i_pic_x, i_pic_y;                /* x,y coordinates in picture */
    int         i_y, i_u, i_v;                           /* Y, U and V samples */
    int         i_width, i_height;                             /* picture size */
    int         i_chroma_width;                                /* chroma width */    
    int         i_eol_offset;          /* pixels from end of line to next line */
    yuv_data_t *p_y;                                     /* Y data base adress */
    yuv_data_t *p_u;                                     /* U data base adress */
    yuv_data_t *p_v;                                     /* V data base adress */
    u16 *       pi_pic;                 /* base adress for destination picture */
    u16 *       pi_trans_red;                      /* red transformation table */
    u16 *       pi_trans_green;                  /* green transformation table */
    u16 *       pi_trans_blue;                    /* blue transformation table */
 
    /* Choose transformation matrix coefficients */
    i_crv = MATRIX_COEFFICIENTS_TABLE[p_pic->i_matrix_coefficients][0];
    i_cbu = MATRIX_COEFFICIENTS_TABLE[p_pic->i_matrix_coefficients][1];
    i_cgu = MATRIX_COEFFICIENTS_TABLE[p_pic->i_matrix_coefficients][2];
    i_cgv = MATRIX_COEFFICIENTS_TABLE[p_pic->i_matrix_coefficients][3];

    /* Choose the conversions tables */
    pi_trans_red =      p_vout->pi_trans16_red;
    pi_trans_green =    p_vout->pi_trans16_green;
    pi_trans_blue =     p_vout->pi_trans16_blue;    

    /* Set the base pointers and transformation parameters */
    p_y =               p_pic->p_y;
    p_u =               p_pic->p_u;
    p_v =               p_pic->p_v;
    i_width =           p_pic->i_width;
    i_height =          p_pic->i_height;
    i_chroma_width =    i_width / 2;
    i_eol_offset =      p_vout->i_bytes_per_line / 2 - i_width;    
        
    /* Get base adress for destination image */
    pi_pic = (u16 *)vout_SysGetPicture( p_vout );

    /* Do YUV transformation - the loops are repeated for optimization */
    switch( p_pic->i_type )
    {
    case YUV_420_PICTURE:                   /* 15 or 16 bpp 420 transformation */
#ifdef HAVE_MMX
        vout_YUV420_16_MMX( p_y, p_u, p_v, 
                            i_width, i_height, 
                            i_width, i_chroma_width,
                            0, (u8 *) pi_pic, 
                            0, 0, p_vout->i_bytes_per_line, 
                            p_vout->i_screen_depth == 15 );
#else
        YUV_TRANSFORM( 420,
                       pi_trans_red, 
                       pi_trans_green, 
                       pi_trans_blue,
                       pi_pic );            
#endif
        break;
    case YUV_422_PICTURE:                   /* 15 or 16 bpp 422 transformation */
        YUV_TRANSFORM( 422,
                       pi_trans_red, 
                       pi_trans_green, 
                       pi_trans_blue,
                       pi_pic );            
1042
        break;
1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132
    case YUV_444_PICTURE:                   /* 15 or 16 bpp 444 transformation */
        YUV_TRANSFORM( 444,
                       pi_trans_red, 
                       pi_trans_green, 
                       pi_trans_blue,
                       pi_pic );            
        break;                 
    }
}

/*******************************************************************************
 * RenderYUV32Picture: render a 24 or 32 bpp YUV picture
 *******************************************************************************
 * Performs the YUV convertion. The picture sent to this function should only
 * have YUV_420, YUV_422 or YUV_444 types.
 *******************************************************************************/
static void RenderYUV32Picture( vout_thread_t *p_vout, picture_t *p_pic )
{
    int         i_crv, i_cbu, i_cgu, i_cgv;     /* transformation coefficients */
    int         i_pic_x, i_pic_y;                /* x,y coordinates in picture */
    int         i_y, i_u, i_v;                           /* Y, U and V samples */
    int         i_width, i_height;                             /* picture size */
    int         i_chroma_width;                                /* chroma width */    
    int         i_eol_offset;          /* pixels from end of line to next line */
    yuv_data_t *p_y;                                     /* Y data base adress */
    yuv_data_t *p_u;                                     /* U data base adress */
    yuv_data_t *p_v;                                     /* V data base adress */
    u32 *       pi_pic;                 /* base adress for destination picture */
    u32 *       pi_trans_red;                      /* red transformation table */
    u32 *       pi_trans_green;                  /* green transformation table */
    u32 *       pi_trans_blue;                    /* blue transformation table */
 
    /* Choose transformation matrix coefficients */
    i_crv = MATRIX_COEFFICIENTS_TABLE[p_pic->i_matrix_coefficients][0];
    i_cbu = MATRIX_COEFFICIENTS_TABLE[p_pic->i_matrix_coefficients][1];
    i_cgu = MATRIX_COEFFICIENTS_TABLE[p_pic->i_matrix_coefficients][2];
    i_cgv = MATRIX_COEFFICIENTS_TABLE[p_pic->i_matrix_coefficients][3];

    /* Choose the conversions tables */
    pi_trans_red =      p_vout->pi_trans32_red;
    pi_trans_green =    p_vout->pi_trans32_green;
    pi_trans_blue =     p_vout->pi_trans32_blue;    

    /* Set the base pointers and transformation parameters */
    p_y =               p_pic->p_y;
    p_u =               p_pic->p_u;
    p_v =               p_pic->p_v;
    i_width =           p_pic->i_width;
    i_height =          p_pic->i_height;
    i_chroma_width =    i_width / 2;
    i_eol_offset =      p_vout->i_bytes_per_line / p_vout->i_bytes_per_pixel - i_width;
        
    /* Get base adress for destination image */
    pi_pic = (u32 *)vout_SysGetPicture( p_vout );

    /* Do YUV transformation - the loops are repeated for optimization */
    switch( p_pic->i_type )
    {
    case YUV_420_PICTURE:                   /* 24 or 32 bpp 420 transformation */
        YUV_TRANSFORM( 420,
                       pi_trans_red, 
                       pi_trans_green, 
                       pi_trans_blue,
                       pi_pic );            
        break;
    case YUV_422_PICTURE:                   /* 24 or 32 bpp 422 transformation */
        YUV_TRANSFORM( 422,
                       pi_trans_red, 
                       pi_trans_green, 
                       pi_trans_blue,
                       pi_pic );            
        break;
    case YUV_444_PICTURE:                   /* 24 or 32 bpp 444 transformation */
        YUV_TRANSFORM( 444,
                       pi_trans_red, 
                       pi_trans_green, 
                       pi_trans_blue,
                       pi_pic );            
        break;                 
    }
}

/*******************************************************************************
 * RenderInfo: print additionnal informations on a picture
 *******************************************************************************
 * This function will add informations such as fps and buffer size on a picture
 *******************************************************************************/
static void RenderInfo( vout_thread_t *p_vout )
{
    char        psz_buffer[256];                              /* string buffer */
1133 1134 1135 1136 1137
#ifdef DEBUG
    int         i_ready_pic = 0;                             /* ready pictures */
    int         i_reserved_pic = 0;                       /* reserved pictures */
    int         i_picture;                                    /* picture index */
#endif
1138 1139

#ifdef STATS
1140 1141
    /* Print FPS rate in upper right corner */
    if( p_vout->c_fps_samples > VOUT_FPS_SAMPLES )
1142 1143
    {        
        sprintf( psz_buffer, "%.2f fps", (double) VOUT_FPS_SAMPLES * 1000000 /
1144 1145
                 ( p_vout->fps_sample[ (p_vout->c_fps_samples - 1) % VOUT_FPS_SAMPLES ] -
                   p_vout->fps_sample[ p_vout->c_fps_samples % VOUT_FPS_SAMPLES ] ) );        
1146 1147 1148
        vout_SysPrint( p_vout, p_vout->i_width, 0, 1, -1, psz_buffer );
    }

1149 1150 1151 1152
    /* Print statistics in upper left corner */
    sprintf( psz_buffer, "%ld frames (%.1f %% idle)", p_vout->c_fps_samples,
             p_vout->c_loops ? 
             (double ) p_vout->c_idle_loops * 100 / p_vout->c_loops : 100. );    
1153 1154 1155
    vout_SysPrint( p_vout, 0, 0, -1, -1, psz_buffer );    
#endif
    
1156
#ifdef DEBUG
1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171
    /* Print heap state in lower left corner  */
    for( i_picture = 0; i_picture < VOUT_MAX_PICTURES; i_picture++ )
    {
        switch( p_vout->p_picture[i_picture].i_status )
        {
        case RESERVED_PICTURE:
            i_reserved_pic++;            
            break;            
        case READY_PICTURE:
            i_ready_pic++;            
            break;            
        }        
    }
    sprintf( psz_buffer, "video heap: %d/%d/%d", i_reserved_pic, i_ready_pic, 
             VOUT_MAX_PICTURES );
1172 1173 1174 1175
    vout_SysPrint( p_vout, 0, p_vout->i_height, -1, 1, psz_buffer );    
#endif

#ifdef DEBUG_VIDEO
1176
    /* Print rendering statistics in lower right corner */
1177 1178 1179
    sprintf( psz_buffer, "picture rendering time: %lu us", 
             (unsigned long) p_vout->picture_render_time );    
    vout_SysPrint( p_vout, p_vout->i_width, p_vout->i_height, 1, 1, psz_buffer );    
1180
#endif
1181 1182
}

1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219
/*******************************************************************************
 * RenderIdle: render idle picture
 *******************************************************************************
 * This function will clear the display or print a logo. Level will vary from 0
 * to a very high value that noone should never reach. It returns non 0 if 
 * something needs to be displayed and 0 if the previous picture can be kept.
 *******************************************************************************/
static int RenderIdle( vout_thread_t *p_vout, int i_level )
{
    byte_t      *pi_pic;                            /* pointer to picture data */
    
    /* Get frame pointer and clear display */
    pi_pic = vout_SysGetPicture( p_vout );    
     
    
    switch( i_level )
    {
    case 0:                                           /* level 0: clear screen */
        memset( pi_pic, 0, p_vout->i_bytes_per_line * p_vout->i_height );
        break;                
    case 1:                                            /* level 1: "no stream" */        
        memset( pi_pic, 0, p_vout->i_bytes_per_line * p_vout->i_height );
        vout_SysPrint( p_vout, p_vout->i_width / 2, p_vout->i_height / 2,
                       0, 0, "no stream" );     
        break;
    case 50:                                    /* level 50: copyright message */
        memset( pi_pic, 0, p_vout->i_bytes_per_line * p_vout->i_height );
        vout_SysPrint( p_vout, p_vout->i_width / 2, p_vout->i_height / 2,
                       0, 0, COPYRIGHT_MESSAGE );        
        break; 
    default:                            /* other levels: keep previous picture */
        return( 0 );
        break;        
    }

    return( 1 );    
}
1220