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 #include "util/u_sampler.h"
  13
  14 #include "pipe/p_screen.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    struct pipe_sampler_view *yuv_views[2][3];
  96 };
  97
  98
  99 static void
 100 stop_video(ScrnInfoPtr pScrn, pointer data, Bool shutdown)
 101 {
 102    struct xorg_xv_port_priv *priv = (struct xorg_xv_port_priv *)data;
 103
 104    REGION_EMPTY(pScrn->pScreen, &priv->clip);
 105 }
 106
 107 static int
 108 set_port_attribute(ScrnInfoPtr pScrn,
 109                    Atom attribute, INT32 value, pointer data)
 110 {
 111    struct xorg_xv_port_priv *priv = (struct xorg_xv_port_priv *)data;
 112
 113    if (attribute == xvBrightness) {
 114       if ((value < -128) || (value > 127))
 115          return BadValue;
 116       priv->brightness = value;
 117    } else if (attribute == xvContrast) {
 118       if ((value < 0) || (value > 255))
 119          return BadValue;
 120       priv->contrast = value;
 121    } else
 122       return BadMatch;
 123
 124    return Success;
 125 }
 126
 127 static int
 128 get_port_attribute(ScrnInfoPtr pScrn,
 129                    Atom attribute, INT32 * value, pointer data)
 130 {
 131    struct xorg_xv_port_priv *priv = (struct xorg_xv_port_priv *)data;
 132
 133    if (attribute == xvBrightness)
 134       *value = priv->brightness;
 135    else if (attribute == xvContrast)
 136       *value = priv->contrast;
 137    else
 138       return BadMatch;
 139
 140    return Success;
 141 }
 142
 143 static void
 144 query_best_size(ScrnInfoPtr pScrn,
 145                 Bool motion,
 146                 short vid_w, short vid_h,
 147                 short drw_w, short drw_h,
 148                 unsigned int *p_w, unsigned int *p_h, pointer data)
 149 {
 150    if (vid_w > (drw_w << 1))
 151       drw_w = vid_w >> 1;
 152    if (vid_h > (drw_h << 1))
 153       drw_h = vid_h >> 1;
 154
 155    *p_w = drw_w;
 156    *p_h = drw_h;
 157 }
 158
 159 static INLINE struct pipe_texture *
 160 create_component_texture(struct pipe_context *pipe,
 161                          int width, int height)
 162 {
 163    struct pipe_screen *screen = pipe->screen;
 164    struct pipe_texture *tex = 0;
 165    struct pipe_texture templ;
 166
 167    memset(&templ, 0, sizeof(templ));
 168    templ.target = PIPE_TEXTURE_2D;
 169    templ.format = PIPE_FORMAT_L8_UNORM;
 170    templ.last_level = 0;
 171    templ.width0 = width;
 172    templ.height0 = height;
 173    templ.depth0 = 1;
 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    struct pipe_sampler_view **dst_view = priv->yuv_views[priv->current_set];
 186    struct pipe_sampler_view view_templ;
 187    struct pipe_context *pipe = priv->r->pipe;
 188
 189    if (!dst[0] ||
 190        dst[0]->width0 != width ||
 191        dst[0]->height0 != height) {
 192       pipe_texture_reference(&dst[0], NULL);
 193       pipe_sampler_view_reference(&dst_view[0], NULL);
 194    }
 195    if (!dst[1] ||
 196        dst[1]->width0 != width ||
 197        dst[1]->height0 != height) {
 198       pipe_texture_reference(&dst[1], NULL);
 199       pipe_sampler_view_reference(&dst_view[1], NULL);
 200    }
 201    if (!dst[2] ||
 202        dst[2]->width0 != width ||
 203        dst[2]->height0 != height) {
 204       pipe_texture_reference(&dst[2], NULL);
 205       pipe_sampler_view_reference(&dst_view[2], NULL);
 206    }
 207
 208    if (!dst[0]) {
 209       dst[0] = create_component_texture(priv->r->pipe, width, height);
 210       if (dst[0]) {
 211          u_sampler_view_default_template(&view_templ,
 212                                          dst[0],
 213                                          dst[0]->format);
 214          dst_view[0] = pipe->create_sampler_view(pipe, dst[0], &view_templ);
 215       }
 216    }
 217
 218    if (!dst[1]) {
 219       dst[1] = create_component_texture(priv->r->pipe, width, height);
 220       if (dst[1]) {
 221          u_sampler_view_default_template(&view_templ,
 222                                          dst[1],
 223                                          dst[1]->format);
 224          dst_view[1] = pipe->create_sampler_view(pipe, dst[1], &view_templ);
 225       }
 226    }
 227
 228    if (!dst[2]) {
 229       dst[2] = create_component_texture(priv->r->pipe, width, height);
 230       if (dst[2]) {
 231          u_sampler_view_default_template(&view_templ,
 232                                       dst[2],
 233                                       dst[2]->format);
 234          dst_view[2] = pipe->create_sampler_view(pipe, dst[2], &view_templ);
 235       }
 236    }
 237
 238    if (!dst[0] || !dst[1] || !dst[2] || !dst_view[0] || !dst_view[1] || !dst_view[2] )
 239       return BadAlloc;
 240
 241    return Success;
 242 }
 243
 244 static int
 245 query_image_attributes(ScrnInfoPtr pScrn,
 246                        int id,
 247                        unsigned short *w, unsigned short *h,
 248                        int *pitches, int *offsets)
 249 {
 250    int size, tmp;
 251
 252    if (*w > IMAGE_MAX_WIDTH)
 253       *w = IMAGE_MAX_WIDTH;
 254    if (*h > IMAGE_MAX_HEIGHT)
 255       *h = IMAGE_MAX_HEIGHT;
 256
 257    *w = (*w + 1) & ~1;
 258    if (offsets)
 259       offsets[0] = 0;
 260
 261    switch (id) {
 262    case FOURCC_YV12:
 263       *h = (*h + 1) & ~1;
 264       size = (*w + 3) & ~3;
 265       if (pitches) {
 266          pitches[0] = size;
 267       }
 268       size *= *h;
 269       if (offsets) {
 270          offsets[1] = size;
 271       }
 272       tmp = ((*w >> 1) + 3) & ~3;
 273       if (pitches) {
 274          pitches[1] = pitches[2] = tmp;
 275       }
 276       tmp *= (*h >> 1);
 277       size += tmp;
 278       if (offsets) {
 279          offsets[2] = size;
 280       }
 281       size += tmp;
 282       break;
 283    case FOURCC_UYVY:
 284    case FOURCC_YUY2:
 285    default:
 286       size = *w << 1;
 287       if (pitches)
 288          pitches[0] = size;
 289       size *= *h;
 290       break;
 291    }
 292
 293    return size;
 294 }
 295
 296 static void
 297 copy_packed_data(ScrnInfoPtr pScrn,
 298                  struct xorg_xv_port_priv *port,
 299                  int id,
 300                  unsigned char *buf,
 301                  int left,
 302                  int top,
 303                  unsigned short w, unsigned short h)
 304 {
 305    int i, j;
 306    struct pipe_texture **dst = port->yuv[port->current_set];
 307    struct pipe_transfer *ytrans, *utrans, *vtrans;
 308    struct pipe_context *pipe = port->r->pipe;
 309    char *ymap, *vmap, *umap;
 310    unsigned char y1, y2, u, v;
 311    int yidx, uidx, vidx;
 312    int y_array_size = w * h;
 313
 314    ytrans = pipe->get_tex_transfer(pipe, dst[0],
 315                                    0, 0, 0,
 316                                    PIPE_TRANSFER_WRITE,
 317                                    left, top, w, h);
 318    utrans = pipe->get_tex_transfer(pipe, dst[1],
 319                                    0, 0, 0,
 320                                    PIPE_TRANSFER_WRITE,
 321                                    left, top, w, h);
 322    vtrans = pipe->get_tex_transfer(pipe, dst[2],
 323                                    0, 0, 0,
 324                                    PIPE_TRANSFER_WRITE,
 325                                    left, top, w, h);
 326
 327    ymap = (char*)pipe->transfer_map(pipe, ytrans);
 328    umap = (char*)pipe->transfer_map(pipe, utrans);
 329    vmap = (char*)pipe->transfer_map(pipe, vtrans);
 330
 331    yidx = uidx = vidx = 0;
 332
 333    switch (id) {
 334    case FOURCC_YV12: {
 335       int pitches[3], offsets[3];
 336       unsigned char *y, *u, *v;
 337       query_image_attributes(pScrn, FOURCC_YV12,
 338                              &w, &h, pitches, offsets);
 339
 340       y = buf + offsets[0];
 341       v = buf + offsets[1];
 342       u = buf + offsets[2];
 343       for (i = 0; i < h; ++i) {
 344          for (j = 0; j < w; ++j) {
 345             int yoffset = (w*i+j);
 346             int ii = (i|1), jj = (j|1);
 347             int vuoffset = (w/2)*(ii/2) + (jj/2);
 348             ymap[yidx++] = y[yoffset];
 349             umap[uidx++] = u[vuoffset];
 350             vmap[vidx++] = v[vuoffset];
 351          }
 352       }
 353    }
 354       break;
 355    case FOURCC_UYVY:
 356       for (i = 0; i < y_array_size; i +=2 ) {
 357          /* extracting two pixels */
 358          u  = buf[0];
 359          y1 = buf[1];
 360          v  = buf[2];
 361          y2 = buf[3];
 362          buf += 4;
 363
 364          ymap[yidx++] = y1;
 365          ymap[yidx++] = y2;
 366          umap[uidx++] = u;
 367          umap[uidx++] = u;
 368          vmap[vidx++] = v;
 369          vmap[vidx++] = v;
 370       }
 371       break;
 372    case FOURCC_YUY2:
 373       for (i = 0; i < y_array_size; i +=2 ) {
 374          /* extracting two pixels */
 375          y1 = buf[0];
 376          u  = buf[1];
 377          y2 = buf[2];
 378          v  = buf[3];
 379
 380          buf += 4;
 381
 382          ymap[yidx++] = y1;
 383          ymap[yidx++] = y2;
 384          umap[uidx++] = u;
 385          umap[uidx++] = u;
 386          vmap[vidx++] = v;
 387          vmap[vidx++] = v;
 388       }
 389       break;
 390    default:
 391       debug_assert(!"Unsupported yuv format!");
 392       break;
 393    }
 394
 395    pipe->transfer_unmap(pipe, ytrans);
 396    pipe->transfer_unmap(pipe, utrans);
 397    pipe->transfer_unmap(pipe, vtrans);
 398    pipe->tex_transfer_destroy(pipe, ytrans);
 399    pipe->tex_transfer_destroy(pipe, utrans);
 400    pipe->tex_transfer_destroy(pipe, vtrans);
 401 }
 402
 403
 404 static void
 405 setup_fs_video_constants(struct xorg_renderer *r, boolean hdtv)
 406 {
 407    const int param_bytes = 12 * sizeof(float);
 408    const float *video_constants = (hdtv) ? bt_709 : bt_601;
 409
 410    renderer_set_constants(r, PIPE_SHADER_FRAGMENT,
 411                           video_constants, param_bytes);
 412 }
 413
 414 static void
 415 draw_yuv(struct xorg_xv_port_priv *port,
 416          int src_x, int src_y, int src_w, int src_h,
 417          int dst_x, int dst_y, int dst_w, int dst_h)
 418 {
 419    struct pipe_texture **textures = port->yuv[port->current_set];
 420
 421    /*debug_printf("  draw_yuv([%d, %d, %d ,%d], [%d, %d, %d, %d])\n",
 422                 src_x, src_y, src_w, src_h,
 423                 dst_x, dst_y, dst_w, dst_h);*/
 424    renderer_draw_yuv(port->r,
 425                      src_x, src_y, src_w, src_h,
 426                      dst_x, dst_y, dst_w, dst_h,
 427                      textures);
 428 }
 429
 430 static void
 431 bind_blend_state(struct xorg_xv_port_priv *port)
 432 {
 433    struct pipe_blend_state blend;
 434
 435    memset(&blend, 0, sizeof(struct pipe_blend_state));
 436    blend.rt[0].blend_enable = 0;
 437    blend.rt[0].colormask = PIPE_MASK_RGBA;
 438
 439    /* porter&duff src */
 440    blend.rt[0].rgb_src_factor   = PIPE_BLENDFACTOR_ONE;
 441    blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
 442    blend.rt[0].rgb_dst_factor   = PIPE_BLENDFACTOR_ZERO;
 443    blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
 444
 445    cso_set_blend(port->r->cso, &blend);
 446 }
 447
 448
 449 static void
 450 bind_shaders(struct xorg_xv_port_priv *port)
 451 {
 452    unsigned vs_traits = 0, fs_traits = 0;
 453    struct xorg_shader shader;
 454
 455    vs_traits |= VS_YUV;
 456    fs_traits |= FS_YUV;
 457
 458    shader = xorg_shaders_get(port->r->shaders, vs_traits, fs_traits);
 459    cso_set_vertex_shader_handle(port->r->cso, shader.vs);
 460    cso_set_fragment_shader_handle(port->r->cso, shader.fs);
 461 }
 462
 463 static INLINE void
 464 conditional_flush(struct pipe_context *pipe, struct pipe_texture **tex,
 465                   int num)
 466 {
 467    int i;
 468    for (i = 0; i < num; ++i) {
 469       if (tex[i] && pipe->is_texture_referenced(pipe, tex[i], 0, 0) &
 470           PIPE_REFERENCED_FOR_WRITE) {
 471          pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
 472          return;
 473       }
 474    }
 475 }
 476
 477 static void
 478 bind_samplers(struct xorg_xv_port_priv *port)
 479 {
 480    struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
 481    struct pipe_sampler_state sampler;
 482    struct pipe_texture **dst = port->yuv[port->current_set];
 483    struct pipe_sampler_view **dst_views = port->yuv_views[port->current_set];
 484
 485    memset(&sampler, 0, sizeof(struct pipe_sampler_state));
 486
 487    conditional_flush(port->r->pipe, dst, 3);
 488
 489    sampler.wrap_s = PIPE_TEX_WRAP_CLAMP;
 490    sampler.wrap_t = PIPE_TEX_WRAP_CLAMP;
 491    sampler.min_img_filter = PIPE_TEX_FILTER_LINEAR;
 492    sampler.mag_img_filter = PIPE_TEX_FILTER_LINEAR;
 493    sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
 494    sampler.normalized_coords = 1;
 495
 496    samplers[0] = &sampler;
 497    samplers[1] = &sampler;
 498    samplers[2] = &sampler;
 499
 500
 501    cso_set_samplers(port->r->cso, 3,
 502                     (const struct pipe_sampler_state **)samplers);
 503    cso_set_fragment_sampler_views(port->r->cso, 3, dst_views);
 504 }
 505
 506 static int
 507 display_video(ScrnInfoPtr pScrn, struct xorg_xv_port_priv *pPriv, int id,
 508               RegionPtr dstRegion,
 509               int src_x, int src_y, int src_w, int src_h,
 510               int dstX, int dstY, int dst_w, int dst_h,
 511               PixmapPtr pPixmap)
 512 {
 513    modesettingPtr ms = modesettingPTR(pScrn);
 514    BoxPtr pbox;
 515    int nbox;
 516    int dxo, dyo;
 517    Bool hdtv;
 518    int x, y, w, h;
 519    struct exa_pixmap_priv *dst;
 520    struct pipe_surface *dst_surf = NULL;
 521
 522    exaMoveInPixmap(pPixmap);
 523    dst = exaGetPixmapDriverPrivate(pPixmap);
 524
 525    /*debug_printf("display_video([%d, %d, %d, %d], [%d, %d, %d, %d])\n",
 526      src_x, src_y, src_w, src_h, dstX, dstY, dst_w, dst_h);*/
 527
 528    if (dst && !dst->tex) {
 529         xorg_exa_set_shared_usage(pPixmap);
 530         pScrn->pScreen->ModifyPixmapHeader(pPixmap, 0, 0, 0, 0, 0, NULL);
 531    }
 532
 533    if (!dst || !dst->tex)
 534       XORG_FALLBACK("Xv destination %s", !dst ? "!dst" : "!dst->tex");
 535
 536    dst_surf = xorg_gpu_surface(pPriv->r->pipe->screen, dst);
 537    hdtv = ((src_w >= RES_720P_X) && (src_h >= RES_720P_Y));
 538
 539    REGION_TRANSLATE(pScrn->pScreen, dstRegion, -pPixmap->screen_x,
 540                     -pPixmap->screen_y);
 541
 542    dxo = dstRegion->extents.x1;
 543    dyo = dstRegion->extents.y1;
 544
 545    pbox = REGION_RECTS(dstRegion);
 546    nbox = REGION_NUM_RECTS(dstRegion);
 547
 548    renderer_bind_destination(pPriv->r, dst_surf,
 549                              dst_surf->width, dst_surf->height);
 550
 551    bind_blend_state(pPriv);
 552    bind_shaders(pPriv);
 553    bind_samplers(pPriv);
 554    setup_fs_video_constants(pPriv->r, hdtv);
 555
 556    DamageDamageRegion(&pPixmap->drawable, dstRegion);
 557
 558    while (nbox--) {
 559       int box_x1 = pbox->x1;
 560       int box_y1 = pbox->y1;
 561       int box_x2 = pbox->x2;
 562       int box_y2 = pbox->y2;
 563       float diff_x = (float)src_w / (float)dst_w;
 564       float diff_y = (float)src_h / (float)dst_h;
 565       int offset_x = box_x1 - dstX + pPixmap->screen_x;
 566       int offset_y = box_y1 - dstY + pPixmap->screen_y;
 567       int offset_w;
 568       int offset_h;
 569
 570       x = box_x1;
 571       y = box_y1;
 572       w = box_x2 - box_x1;
 573       h = box_y2 - box_y1;
 574
 575       offset_w = dst_w - w;
 576       offset_h = dst_h - h;
 577
 578       draw_yuv(pPriv,
 579                src_x + offset_x*diff_x, src_y + offset_y*diff_y,
 580                src_w - offset_w*diff_x, src_h - offset_h*diff_y,
 581                x, y, w, h);
 582
 583       pbox++;
 584    }
 585    DamageRegionProcessPending(&pPixmap->drawable);
 586
 587    pipe_surface_reference(&dst_surf, NULL);
 588
 589    return TRUE;
 590 }
 591
 592 static int
 593 put_image(ScrnInfoPtr pScrn,
 594           short src_x, short src_y,
 595           short drw_x, short drw_y,
 596           short src_w, short src_h,
 597           short drw_w, short drw_h,
 598           int id, unsigned char *buf,
 599           short width, short height,
 600           Bool sync, RegionPtr clipBoxes, pointer data,
 601           DrawablePtr pDraw)
 602 {
 603    struct xorg_xv_port_priv *pPriv = (struct xorg_xv_port_priv *) data;
 604    ScreenPtr pScreen = screenInfo.screens[pScrn->scrnIndex];
 605    PixmapPtr pPixmap;
 606    INT32 x1, x2, y1, y2;
 607    BoxRec dstBox;
 608    int ret;
 609
 610    /* Clip */
 611    x1 = src_x;
 612    x2 = src_x + src_w;
 613    y1 = src_y;
 614    y2 = src_y + src_h;
 615
 616    dstBox.x1 = drw_x;
 617    dstBox.x2 = drw_x + drw_w;
 618    dstBox.y1 = drw_y;
 619    dstBox.y2 = drw_y + drw_h;
 620
 621    if (!xf86XVClipVideoHelper(&dstBox, &x1, &x2, &y1, &y2, clipBoxes,
 622                               width, height))
 623       return Success;
 624
 625    ret = check_yuv_textures(pPriv, width, height);
 626
 627    if (ret)
 628       return ret;
 629
 630    copy_packed_data(pScrn, pPriv, id, buf,
 631                     src_x, src_y, width, height);
 632
 633    if (pDraw->type == DRAWABLE_WINDOW) {
 634       pPixmap = (*pScreen->GetWindowPixmap)((WindowPtr)pDraw);
 635    } else {
 636       pPixmap = (PixmapPtr)pDraw;
 637    }
 638
 639    display_video(pScrn, pPriv, id, clipBoxes,
 640                  src_x, src_y, src_w, src_h,
 641                  drw_x, drw_y,
 642                  drw_w, drw_h, pPixmap);
 643
 644    pPriv->current_set = (pPriv->current_set + 1) & 1;
 645    return Success;
 646 }
 647
 648 static struct xorg_xv_port_priv *
 649 port_priv_create(struct xorg_renderer *r)
 650 {
 651    struct xorg_xv_port_priv *priv = NULL;
 652
 653    priv = calloc(1, sizeof(struct xorg_xv_port_priv));
 654
 655    if (!priv)
 656       return NULL;
 657
 658    priv->r = r;
 659
 660    REGION_NULL(pScreen, &priv->clip);
 661
 662    debug_assert(priv && priv->r);
 663
 664    return priv;
 665 }
 666
 667 static XF86VideoAdaptorPtr
 668 xorg_setup_textured_adapter(ScreenPtr pScreen)
 669 {
 670    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 671    modesettingPtr ms = modesettingPTR(pScrn);
 672    XF86VideoAdaptorPtr adapt;
 673    XF86AttributePtr attrs;
 674    DevUnion *dev_unions;
 675    int nports = 16, i;
 676    int nattributes;
 677
 678    nattributes = NUM_TEXTURED_ATTRIBUTES;
 679
 680    debug_assert(ms->exa);
 681    debug_assert(ms->exa->renderer);
 682
 683    adapt = calloc(1, sizeof(XF86VideoAdaptorRec));
 684    dev_unions = calloc(nports, sizeof(DevUnion));
 685    attrs = calloc(nattributes, sizeof(XF86AttributeRec));
 686    if (adapt == NULL || dev_unions == NULL || attrs == NULL) {
 687       free(adapt);
 688       free(dev_unions);
 689       free(attrs);
 690       return NULL;
 691    }
 692
 693    adapt->type = XvWindowMask | XvInputMask | XvImageMask;
 694    adapt->flags = 0;
 695    adapt->name = "Gallium3D Textured Video";
 696    adapt->nEncodings = 1;
 697    adapt->pEncodings = DummyEncoding;
 698    adapt->nFormats = NUM_FORMATS;
 699    adapt->pFormats = Formats;
 700    adapt->nPorts = 0;
 701    adapt->pPortPrivates = dev_unions;
 702    adapt->nAttributes = nattributes;
 703    adapt->pAttributes = attrs;
 704    memcpy(attrs, TexturedAttributes, nattributes * sizeof(XF86AttributeRec));
 705    adapt->nImages = NUM_IMAGES;
 706    adapt->pImages = Images;
 707    adapt->PutVideo = NULL;
 708    adapt->PutStill = NULL;
 709    adapt->GetVideo = NULL;
 710    adapt->GetStill = NULL;
 711    adapt->StopVideo = stop_video;
 712    adapt->SetPortAttribute = set_port_attribute;
 713    adapt->GetPortAttribute = get_port_attribute;
 714    adapt->QueryBestSize = query_best_size;
 715    adapt->PutImage = put_image;
 716    adapt->QueryImageAttributes = query_image_attributes;
 717
 718    for (i = 0; i < nports; i++) {
 719       struct xorg_xv_port_priv *priv =
 720          port_priv_create(ms->exa->renderer);
 721
 722       adapt->pPortPrivates[i].ptr = (pointer) (priv);
 723       adapt->nPorts++;
 724    }
 725
 726    return adapt;
 727 }
 728
 729 void
 730 xorg_xv_init(ScreenPtr pScreen)
 731 {
 732    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 733    /*modesettingPtr ms = modesettingPTR(pScrn);*/
 734    XF86VideoAdaptorPtr *adaptors, *new_adaptors = NULL;
 735    XF86VideoAdaptorPtr textured_adapter;
 736    int num_adaptors;
 737
 738    num_adaptors = xf86XVListGenericAdaptors(pScrn, &adaptors);
 739    new_adaptors = malloc((num_adaptors + 1) * sizeof(XF86VideoAdaptorPtr *));
 740    if (new_adaptors == NULL)
 741       return;
 742
 743    memcpy(new_adaptors, adaptors, num_adaptors * sizeof(XF86VideoAdaptorPtr));
 744    adaptors = new_adaptors;
 745
 746    /* Add the adaptors supported by our hardware.  First, set up the atoms
 747     * that will be used by both output adaptors.
 748     */
 749    xvBrightness = MAKE_ATOM("XV_BRIGHTNESS");
 750    xvContrast = MAKE_ATOM("XV_CONTRAST");
 751
 752    textured_adapter = xorg_setup_textured_adapter(pScreen);
 753
 754    debug_assert(textured_adapter);
 755
 756    if (textured_adapter) {
 757       adaptors[num_adaptors++] = textured_adapter;
 758    }
 759
 760    if (num_adaptors) {
 761       xf86XVScreenInit(pScreen, adaptors, num_adaptors);
 762    } else {
 763       xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 764                  "Disabling Xv because no adaptors could be initialized.\n");
 765    }
 766
 767    free(adaptors);
 768 }