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