src/gallium/state_trackers/xorg/xorg_xv.c

   1 #include "xorg_tracker.h"
   2
   3 #include <xf86xv.h>
   4 #include <X11/extensions/Xv.h>
   5 #include <fourcc.h>
   6
   7 #include "xorg_exa.h"
   8 #include "xorg_renderer.h"
   9 #include "xorg_exa_tgsi.h"
  10
  11 #include "cso_cache/cso_context.h"
  12
  13 #include "pipe/p_screen.h"
  14 #include "pipe/p_inlines.h"
  15
  16 #include "util/u_format.h"
  17
  18 /*XXX get these from pipe's texture limits */
  19 #define IMAGE_MAX_WIDTH         2048
  20 #define IMAGE_MAX_HEIGHT        2048
  21
  22 #define RES_720P_X 1280
  23 #define RES_720P_Y 720
  24
  25
  26 /* The ITU-R BT.601 conversion matrix for SDTV. */
  27 /* original, matrix, but we transpose it to
  28  * make the shader easier
  29 static const float bt_601[] = {
  30     1.0, 0.0, 1.4075,   ,
  31     1.0, -0.3455, -0.7169, 0,
  32     1.0, 1.7790, 0., 0,
  33 };*/
  34 static const float bt_601[] = {
  35     1.0, 1.0, 1.0,        0.5,
  36     0.0, -0.3455, 1.7790, 0,
  37     1.4075, -0.7169, 0.,  0,
  38 };
  39
  40 /* The ITU-R BT.709 conversion matrix for HDTV. */
  41 /* original, but we transpose to make the conversion
  42  * in the shader easier
  43 static const float bt_709[] = {
  44     1.0, 0.0, 1.581, 0,
  45     1.0, -0.1881, -0.47, 0,
  46     1.0, 1.8629, 0., 0,
  47 };*/
  48 static const float bt_709[] = {
  49     1.0,   1.0,     1.0,     0.5,
  50     0.0,  -0.1881,  1.8629,  0,
  51     1.581,-0.47   , 0.0,     0,
  52 };
  53
  54 #define MAKE_ATOM(a) MakeAtom(a, sizeof(a) - 1, TRUE)
  55
  56 static Atom xvBrightness, xvContrast;
  57
  58 #define NUM_TEXTURED_ATTRIBUTES 2
  59 static XF86AttributeRec TexturedAttributes[NUM_TEXTURED_ATTRIBUTES] = {
  60    {XvSettable | XvGettable, -128, 127, "XV_BRIGHTNESS"},
  61    {XvSettable | XvGettable, 0, 255, "XV_CONTRAST"}
  62 };
  63
  64 #define NUM_FORMATS 3
  65 static XF86VideoFormatRec Formats[NUM_FORMATS] = {
  66    {15, TrueColor}, {16, TrueColor}, {24, TrueColor}
  67 };
  68
  69 static XF86VideoEncodingRec DummyEncoding[1] = {
  70    {
  71       0,
  72       "XV_IMAGE",
  73       IMAGE_MAX_WIDTH, IMAGE_MAX_HEIGHT,
  74       {1, 1}
  75    }
  76 };
  77
  78 #define NUM_IMAGES 3
  79 static XF86ImageRec Images[NUM_IMAGES] = {
  80    XVIMAGE_UYVY,
  81    XVIMAGE_YUY2,
  82    XVIMAGE_YV12,
  83 };
  84
  85 struct xorg_xv_port_priv {
  86    struct xorg_renderer *r;
  87
  88    RegionRec clip;
  89
  90    int brightness;
  91    int contrast;
  92
  93    int current_set;
  94    /* juggle two sets of seperate Y, U and V
  95     * textures */
  96    struct pipe_texture *yuv[2][3];
  97 };
  98
  99
 100 static void
 101 stop_video(ScrnInfoPtr pScrn, pointer data, Bool shutdown)
 102 {
 103    struct xorg_xv_port_priv *priv = (struct xorg_xv_port_priv *)data;
 104
 105    REGION_EMPTY(pScrn->pScreen, &priv->clip);
 106 }
 107
 108 static int
 109 set_port_attribute(ScrnInfoPtr pScrn,
 110                    Atom attribute, INT32 value, pointer data)
 111 {
 112    struct xorg_xv_port_priv *priv = (struct xorg_xv_port_priv *)data;
 113
 114    if (attribute == xvBrightness) {
 115       if ((value < -128) || (value > 127))
 116          return BadValue;
 117       priv->brightness = value;
 118    } else if (attribute == xvContrast) {
 119       if ((value < 0) || (value > 255))
 120          return BadValue;
 121       priv->contrast = value;
 122    } else
 123       return BadMatch;
 124
 125    return Success;
 126 }
 127
 128 static int
 129 get_port_attribute(ScrnInfoPtr pScrn,
 130                    Atom attribute, INT32 * value, pointer data)
 131 {
 132    struct xorg_xv_port_priv *priv = (struct xorg_xv_port_priv *)data;
 133
 134    if (attribute == xvBrightness)
 135       *value = priv->brightness;
 136    else if (attribute == xvContrast)
 137       *value = priv->contrast;
 138    else
 139       return BadMatch;
 140
 141    return Success;
 142 }
 143
 144 static void
 145 query_best_size(ScrnInfoPtr pScrn,
 146                 Bool motion,
 147                 short vid_w, short vid_h,
 148                 short drw_w, short drw_h,
 149                 unsigned int *p_w, unsigned int *p_h, pointer data)
 150 {
 151    if (vid_w > (drw_w << 1))
 152       drw_w = vid_w >> 1;
 153    if (vid_h > (drw_h << 1))
 154       drw_h = vid_h >> 1;
 155
 156    *p_w = drw_w;
 157    *p_h = drw_h;
 158 }
 159
 160 static INLINE struct pipe_texture *
 161 create_component_texture(struct pipe_context *pipe,
 162                          int width, int height)
 163 {
 164    struct pipe_screen *screen = pipe->screen;
 165    struct pipe_texture *tex = 0;
 166    struct pipe_texture templ;
 167
 168    memset(&templ, 0, sizeof(templ));
 169    templ.target = PIPE_TEXTURE_2D;
 170    templ.format = PIPE_FORMAT_L8_UNORM;
 171    templ.last_level = 0;
 172    templ.width0 = width;
 173    templ.height0 = height;
 174    templ.depth0 = 1;
 175    templ.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER;
 176
 177    tex = screen->texture_create(screen, &templ);
 178
 179    return tex;
 180 }
 181
 182 static int
 183 check_yuv_textures(struct xorg_xv_port_priv *priv,  int width, int height)
 184 {
 185    struct pipe_texture **dst = priv->yuv[priv->current_set];
 186    if (!dst[0] ||
 187        dst[0]->width0 != width ||
 188        dst[0]->height0 != height) {
 189       pipe_texture_reference(&dst[0], NULL);
 190    }
 191    if (!dst[1] ||
 192        dst[1]->width0 != width ||
 193        dst[1]->height0 != height) {
 194       pipe_texture_reference(&dst[1], NULL);
 195    }
 196    if (!dst[2] ||
 197        dst[2]->width0 != width ||
 198        dst[2]->height0 != height) {
 199       pipe_texture_reference(&dst[2], NULL);
 200    }
 201
 202    if (!dst[0])
 203       dst[0] = create_component_texture(priv->r->pipe, width, height);
 204
 205    if (!dst[1])
 206       dst[1] = create_component_texture(priv->r->pipe, width, height);
 207
 208    if (!dst[2])
 209       dst[2] = create_component_texture(priv->r->pipe, width, height);
 210
 211    if (!dst[0] || !dst[1] || !dst[2])
 212       return BadAlloc;
 213
 214    return Success;
 215 }
 216
 217 static int
 218 query_image_attributes(ScrnInfoPtr pScrn,
 219                        int id,
 220                        unsigned short *w, unsigned short *h,
 221                        int *pitches, int *offsets)
 222 {
 223    int size, tmp;
 224
 225    if (*w > IMAGE_MAX_WIDTH)
 226       *w = IMAGE_MAX_WIDTH;
 227    if (*h > IMAGE_MAX_HEIGHT)
 228       *h = IMAGE_MAX_HEIGHT;
 229
 230    *w = (*w + 1) & ~1;
 231    if (offsets)
 232       offsets[0] = 0;
 233
 234    switch (id) {
 235    case FOURCC_YV12:
 236       *h = (*h + 1) & ~1;
 237       size = (*w + 3) & ~3;
 238       if (pitches) {
 239          pitches[0] = size;
 240       }
 241       size *= *h;
 242       if (offsets) {
 243          offsets[1] = size;
 244       }
 245       tmp = ((*w >> 1) + 3) & ~3;
 246       if (pitches) {
 247          pitches[1] = pitches[2] = tmp;
 248       }
 249       tmp *= (*h >> 1);
 250       size += tmp;
 251       if (offsets) {
 252          offsets[2] = size;
 253       }
 254       size += tmp;
 255       break;
 256    case FOURCC_UYVY:
 257    case FOURCC_YUY2:
 258    default:
 259       size = *w << 1;
 260       if (pitches)
 261          pitches[0] = size;
 262       size *= *h;
 263       break;
 264    }
 265
 266    return size;
 267 }
 268
 269 static void
 270 copy_packed_data(ScrnInfoPtr pScrn,
 271                  struct xorg_xv_port_priv *port,
 272                  int id,
 273                  unsigned char *buf,
 274                  int left,
 275                  int top,
 276                  unsigned short w, unsigned short h)
 277 {
 278    int i, j;
 279    struct pipe_texture **dst = port->yuv[port->current_set];
 280    struct pipe_transfer *ytrans, *utrans, *vtrans;
 281    struct pipe_screen *screen = port->r->pipe->screen;
 282    char *ymap, *vmap, *umap;
 283    unsigned char y1, y2, u, v;
 284    int yidx, uidx, vidx;
 285    int y_array_size = w * h;
 286
 287    ytrans = screen->get_tex_transfer(screen, dst[0],
 288                                      0, 0, 0,
 289                                      PIPE_TRANSFER_WRITE,
 290                                      left, top, w, h);
 291    utrans = screen->get_tex_transfer(screen, dst[1],
 292                                      0, 0, 0,
 293                                      PIPE_TRANSFER_WRITE,
 294                                      left, top, w, h);
 295    vtrans = screen->get_tex_transfer(screen, dst[2],
 296                                      0, 0, 0,
 297                                      PIPE_TRANSFER_WRITE,
 298                                      left, top, w, h);
 299
 300    ymap = (char*)screen->transfer_map(screen, ytrans);
 301    umap = (char*)screen->transfer_map(screen, utrans);
 302    vmap = (char*)screen->transfer_map(screen, vtrans);
 303
 304    yidx = uidx = vidx = 0;
 305
 306    switch (id) {
 307    case FOURCC_YV12: {
 308       int pitches[3], offsets[3];
 309       unsigned char *y, *u, *v;
 310       query_image_attributes(pScrn, FOURCC_YV12,
 311                              &w, &h, pitches, offsets);
 312
 313       y = buf + offsets[0];
 314       v = buf + offsets[1];
 315       u = buf + offsets[2];
 316       for (i = 0; i < h; ++i) {
 317          for (j = 0; j < w; ++j) {
 318             int yoffset = (w*i+j);
 319             int ii = (i|1), jj = (j|1);
 320             int vuoffset = (w/2)*(ii/2) + (jj/2);
 321             ymap[yidx++] = y[yoffset];
 322             umap[uidx++] = u[vuoffset];
 323             vmap[vidx++] = v[vuoffset];
 324          }
 325       }
 326    }
 327       break;
 328    case FOURCC_UYVY:
 329       for (i = 0; i < y_array_size; i +=2 ) {
 330          /* extracting two pixels */
 331          u  = buf[0];
 332          y1 = buf[1];
 333          v  = buf[2];
 334          y2 = buf[3];
 335          buf += 4;
 336
 337          ymap[yidx++] = y1;
 338          ymap[yidx++] = y2;
 339          umap[uidx++] = u;
 340          umap[uidx++] = u;
 341          vmap[vidx++] = v;
 342          vmap[vidx++] = v;
 343       }
 344       break;
 345    case FOURCC_YUY2:
 346       for (i = 0; i < y_array_size; i +=2 ) {
 347          /* extracting two pixels */
 348          y1 = buf[0];
 349          u  = buf[1];
 350          y2 = buf[2];
 351          v  = buf[3];
 352
 353          buf += 4;
 354
 355          ymap[yidx++] = y1;
 356          ymap[yidx++] = y2;
 357          umap[uidx++] = u;
 358          umap[uidx++] = u;
 359          vmap[vidx++] = v;
 360          vmap[vidx++] = v;
 361       }
 362       break;
 363    default:
 364       debug_assert(!"Unsupported yuv format!");
 365       break;
 366    }
 367
 368    screen->transfer_unmap(screen, ytrans);
 369    screen->transfer_unmap(screen, utrans);
 370    screen->transfer_unmap(screen, vtrans);
 371    screen->tex_transfer_destroy(ytrans);
 372    screen->tex_transfer_destroy(utrans);
 373    screen->tex_transfer_destroy(vtrans);
 374 }
 375
 376
 377 static void
 378 setup_fs_video_constants(struct xorg_renderer *r, boolean hdtv)
 379 {
 380    const int param_bytes = 12 * sizeof(float);
 381    const float *video_constants = (hdtv) ? bt_709 : bt_601;
 382
 383    renderer_set_constants(r, PIPE_SHADER_FRAGMENT,
 384                           video_constants, param_bytes);
 385 }
 386
 387 static void
 388 draw_yuv(struct xorg_xv_port_priv *port,
 389          int src_x, int src_y, int src_w, int src_h,
 390          int dst_x, int dst_y, int dst_w, int dst_h)
 391 {
 392    struct pipe_texture **textures = port->yuv[port->current_set];
 393
 394    renderer_draw_yuv(port->r,
 395                      src_x, src_y, src_w, src_h,
 396                      dst_x, dst_y, dst_w, dst_h,
 397                      textures);
 398 }
 399
 400 static void
 401 bind_blend_state(struct xorg_xv_port_priv *port)
 402 {
 403    struct pipe_blend_state blend;
 404
 405    memset(&blend, 0, sizeof(struct pipe_blend_state));
 406    blend.blend_enable = 1;
 407    blend.colormask |= PIPE_MASK_RGBA;
 408
 409    /* porter&duff src */
 410    blend.rgb_src_factor   = PIPE_BLENDFACTOR_ONE;
 411    blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE;
 412    blend.rgb_dst_factor   = PIPE_BLENDFACTOR_ZERO;
 413    blend.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
 414
 415    cso_set_blend(port->r->cso, &blend);
 416 }
 417
 418
 419 static void
 420 bind_shaders(struct xorg_xv_port_priv *port)
 421 {
 422    unsigned vs_traits = 0, fs_traits = 0;
 423    struct xorg_shader shader;
 424
 425    vs_traits |= VS_YUV;
 426    fs_traits |= FS_YUV;
 427
 428    shader = xorg_shaders_get(port->r->shaders, vs_traits, fs_traits);
 429    cso_set_vertex_shader_handle(port->r->cso, shader.vs);
 430    cso_set_fragment_shader_handle(port->r->cso, shader.fs);
 431 }
 432
 433 static INLINE void
 434 conditional_flush(struct pipe_context *pipe, struct pipe_texture **tex,
 435                   int num)
 436 {
 437    int i;
 438    for (i = 0; i < num; ++i) {
 439       if (tex[i] && pipe->is_texture_referenced(pipe, tex[i], 0, 0) &
 440           PIPE_REFERENCED_FOR_WRITE) {
 441          pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
 442          return;
 443       }
 444    }
 445 }
 446
 447 static void
 448 bind_samplers(struct xorg_xv_port_priv *port)
 449 {
 450    struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
 451    struct pipe_sampler_state sampler;
 452    struct pipe_texture **dst = port->yuv[port->current_set];
 453
 454    memset(&sampler, 0, sizeof(struct pipe_sampler_state));
 455
 456    conditional_flush(port->r->pipe, dst, 3);
 457
 458    sampler.wrap_s = PIPE_TEX_WRAP_CLAMP;
 459    sampler.wrap_t = PIPE_TEX_WRAP_CLAMP;
 460    sampler.min_img_filter = PIPE_TEX_FILTER_LINEAR;
 461    sampler.mag_img_filter = PIPE_TEX_FILTER_LINEAR;
 462    sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
 463    sampler.normalized_coords = 1;
 464
 465    samplers[0] = &sampler;
 466    samplers[1] = &sampler;
 467    samplers[2] = &sampler;
 468
 469
 470    cso_set_samplers(port->r->cso, 3,
 471                     (const struct pipe_sampler_state **)samplers);
 472    cso_set_sampler_textures(port->r->cso, 3,
 473                             dst);
 474 }
 475
 476 static int
 477 display_video(ScrnInfoPtr pScrn, struct xorg_xv_port_priv *pPriv, int id,
 478               RegionPtr dstRegion,
 479               int src_x, int src_y, int src_w, int src_h,
 480               int dstX, int dstY, int dst_w, int dst_h,
 481               PixmapPtr pPixmap)
 482 {
 483    modesettingPtr ms = modesettingPTR(pScrn);
 484    BoxPtr pbox;
 485    int nbox;
 486    int dxo, dyo;
 487    Bool hdtv;
 488    int x, y, w, h;
 489    struct exa_pixmap_priv *dst;
 490    struct pipe_surface *dst_surf = NULL;
 491
 492    exaMoveInPixmap(pPixmap);
 493    dst = exaGetPixmapDriverPrivate(pPixmap);
 494
 495    if (dst && !dst->tex) {
 496         xorg_exa_set_shared_usage(pPixmap);
 497         pScrn->pScreen->ModifyPixmapHeader(pPixmap, 0, 0, 0, 0, 0, NULL);
 498    }
 499
 500    if (!dst || !dst->tex)
 501       XORG_FALLBACK("Xv destination %s", !dst ? "!dst" : "!dst->tex");
 502
 503    dst_surf = xorg_gpu_surface(pPriv->r->pipe->screen, dst);
 504    hdtv = ((src_w >= RES_720P_X) && (src_h >= RES_720P_Y));
 505
 506    REGION_TRANSLATE(pScrn->pScreen, dstRegion, -pPixmap->screen_x,
 507                     -pPixmap->screen_y);
 508
 509    dxo = dstRegion->extents.x1;
 510    dyo = dstRegion->extents.y1;
 511
 512    pbox = REGION_RECTS(dstRegion);
 513    nbox = REGION_NUM_RECTS(dstRegion);
 514
 515    renderer_bind_destination(pPriv->r, dst_surf,
 516                              dst_surf->width, dst_surf->height);
 517
 518    bind_blend_state(pPriv);
 519    bind_shaders(pPriv);
 520    bind_samplers(pPriv);
 521    setup_fs_video_constants(pPriv->r, hdtv);
 522
 523    DamageDamageRegion(&pPixmap->drawable, dstRegion);
 524
 525    while (nbox--) {
 526       int box_x1 = pbox->x1;
 527       int box_y1 = pbox->y1;
 528       int box_x2 = pbox->x2;
 529       int box_y2 = pbox->y2;
 530       float diff_x = (float)src_w / (float)dst_w;
 531       float diff_y = (float)src_h / (float)dst_h;
 532       int offset_x = box_x1 - dstX + pPixmap->screen_x;
 533       int offset_y = box_y1 - dstY + pPixmap->screen_y;
 534       int offset_w;
 535       int offset_h;
 536
 537       x = box_x1;
 538       y = box_y1;
 539       w = box_x2 - box_x1;
 540       h = box_y2 - box_y1;
 541
 542       offset_w = dst_w - w;
 543       offset_h = dst_h - h;
 544
 545       draw_yuv(pPriv, src_x + offset_x*diff_x, src_y + offset_y*diff_y,
 546                src_w - offset_w*diff_x, src_h - offset_h*diff_x,
 547                x, y, w, h);
 548
 549       pbox++;
 550    }
 551    DamageRegionProcessPending(&pPixmap->drawable);
 552
 553    pipe_surface_reference(&dst_surf, NULL);
 554
 555    return TRUE;
 556 }
 557
 558 static int
 559 put_image(ScrnInfoPtr pScrn,
 560           short src_x, short src_y,
 561           short drw_x, short drw_y,
 562           short src_w, short src_h,
 563           short drw_w, short drw_h,
 564           int id, unsigned char *buf,
 565           short width, short height,
 566           Bool sync, RegionPtr clipBoxes, pointer data,
 567           DrawablePtr pDraw)
 568 {
 569    struct xorg_xv_port_priv *pPriv = (struct xorg_xv_port_priv *) data;
 570    ScreenPtr pScreen = screenInfo.screens[pScrn->scrnIndex];
 571    PixmapPtr pPixmap;
 572    INT32 x1, x2, y1, y2;
 573    BoxRec dstBox;
 574    int ret;
 575
 576    /* Clip */
 577    x1 = src_x;
 578    x2 = src_x + src_w;
 579    y1 = src_y;
 580    y2 = src_y + src_h;
 581
 582    dstBox.x1 = drw_x;
 583    dstBox.x2 = drw_x + drw_w;
 584    dstBox.y1 = drw_y;
 585    dstBox.y2 = drw_y + drw_h;
 586
 587    if (!xf86XVClipVideoHelper(&dstBox, &x1, &x2, &y1, &y2, clipBoxes,
 588                               width, height))
 589       return Success;
 590
 591    ret = check_yuv_textures(pPriv, width, height);
 592
 593    if (ret)
 594       return ret;
 595
 596    copy_packed_data(pScrn, pPriv, id, buf,
 597                     src_x, src_y, width, height);
 598
 599    if (pDraw->type == DRAWABLE_WINDOW) {
 600       pPixmap = (*pScreen->GetWindowPixmap)((WindowPtr)pDraw);
 601    } else {
 602       pPixmap = (PixmapPtr)pDraw;
 603    }
 604
 605    display_video(pScrn, pPriv, id, clipBoxes,
 606                  src_x, src_y, src_w, src_h,
 607                  drw_x, drw_y,
 608                  drw_w, drw_h, pPixmap);
 609
 610    pPriv->current_set = (pPriv->current_set + 1) & 1;
 611    return Success;
 612 }
 613
 614 static struct xorg_xv_port_priv *
 615 port_priv_create(struct xorg_renderer *r)
 616 {
 617    struct xorg_xv_port_priv *priv = NULL;
 618
 619    priv = calloc(1, sizeof(struct xorg_xv_port_priv));
 620
 621    if (!priv)
 622       return NULL;
 623
 624    priv->r = r;
 625
 626    REGION_NULL(pScreen, &priv->clip);
 627
 628    debug_assert(priv && priv->r);
 629
 630    return priv;
 631 }
 632
 633 static XF86VideoAdaptorPtr
 634 xorg_setup_textured_adapter(ScreenPtr pScreen)
 635 {
 636    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 637    modesettingPtr ms = modesettingPTR(pScrn);
 638    XF86VideoAdaptorPtr adapt;
 639    XF86AttributePtr attrs;
 640    DevUnion *dev_unions;
 641    int nports = 16, i;
 642    int nattributes;
 643
 644    nattributes = NUM_TEXTURED_ATTRIBUTES;
 645
 646    debug_assert(ms->exa);
 647    debug_assert(ms->exa->renderer);
 648
 649    adapt = calloc(1, sizeof(XF86VideoAdaptorRec));
 650    dev_unions = calloc(nports, sizeof(DevUnion));
 651    attrs = calloc(nattributes, sizeof(XF86AttributeRec));
 652    if (adapt == NULL || dev_unions == NULL || attrs == NULL) {
 653       free(adapt);
 654       free(dev_unions);
 655       free(attrs);
 656       return NULL;
 657    }
 658
 659    adapt->type = XvWindowMask | XvInputMask | XvImageMask;
 660    adapt->flags = 0;
 661    adapt->name = "Gallium3D Textured Video";
 662    adapt->nEncodings = 1;
 663    adapt->pEncodings = DummyEncoding;
 664    adapt->nFormats = NUM_FORMATS;
 665    adapt->pFormats = Formats;
 666    adapt->nPorts = 0;
 667    adapt->pPortPrivates = dev_unions;
 668    adapt->nAttributes = nattributes;
 669    adapt->pAttributes = attrs;
 670    memcpy(attrs, TexturedAttributes, nattributes * sizeof(XF86AttributeRec));
 671    adapt->nImages = NUM_IMAGES;
 672    adapt->pImages = Images;
 673    adapt->PutVideo = NULL;
 674    adapt->PutStill = NULL;
 675    adapt->GetVideo = NULL;
 676    adapt->GetStill = NULL;
 677    adapt->StopVideo = stop_video;
 678    adapt->SetPortAttribute = set_port_attribute;
 679    adapt->GetPortAttribute = get_port_attribute;
 680    adapt->QueryBestSize = query_best_size;
 681    adapt->PutImage = put_image;
 682    adapt->QueryImageAttributes = query_image_attributes;
 683
 684    for (i = 0; i < nports; i++) {
 685       struct xorg_xv_port_priv *priv =
 686          port_priv_create(ms->exa->renderer);
 687
 688       adapt->pPortPrivates[i].ptr = (pointer) (priv);
 689       adapt->nPorts++;
 690    }
 691
 692    return adapt;
 693 }
 694
 695 void
 696 xorg_xv_init(ScreenPtr pScreen)
 697 {
 698    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 699    /*modesettingPtr ms = modesettingPTR(pScrn);*/
 700    XF86VideoAdaptorPtr *adaptors, *new_adaptors = NULL;
 701    XF86VideoAdaptorPtr textured_adapter;
 702    int num_adaptors;
 703
 704    num_adaptors = xf86XVListGenericAdaptors(pScrn, &adaptors);
 705    new_adaptors = malloc((num_adaptors + 1) * sizeof(XF86VideoAdaptorPtr *));
 706    if (new_adaptors == NULL)
 707       return;
 708
 709    memcpy(new_adaptors, adaptors, num_adaptors * sizeof(XF86VideoAdaptorPtr));
 710    adaptors = new_adaptors;
 711
 712    /* Add the adaptors supported by our hardware.  First, set up the atoms
 713     * that will be used by both output adaptors.
 714     */
 715    xvBrightness = MAKE_ATOM("XV_BRIGHTNESS");
 716    xvContrast = MAKE_ATOM("XV_CONTRAST");
 717
 718    textured_adapter = xorg_setup_textured_adapter(pScreen);
 719
 720    debug_assert(textured_adapter);
 721
 722    if (textured_adapter) {
 723       adaptors[num_adaptors++] = textured_adapter;
 724    }
 725
 726    if (num_adaptors) {
 727       xf86XVScreenInit(pScreen, adaptors, num_adaptors);
 728    } else {
 729       xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 730                  "Disabling Xv because no adaptors could be initialized.\n");
 731    }
 732
 733    free(adaptors);
 734 }