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