src/gallium/state_trackers/xorg/xorg_composite.c

   1 #include "xorg_composite.h"
   2
   3 #include "xorg_renderer.h"
   4 #include "xorg_exa_tgsi.h"
   5
   6 #include "cso_cache/cso_context.h"
   7 #include "util/u_draw_quad.h"
   8 #include "util/u_math.h"
   9
  10 #include "pipe/p_inlines.h"
  11
  12 /*XXX also in Xrender.h but the including it here breaks compilition */
  13 #define XFixedToDouble(f)    (((double) (f)) / 65536.)
  14
  15 struct xorg_composite_blend {
  16    int op : 8;
  17
  18    unsigned alpha_dst : 4;
  19    unsigned alpha_src : 4;
  20
  21    unsigned rgb_src : 8;    /**< PIPE_BLENDFACTOR_x */
  22    unsigned rgb_dst : 8;    /**< PIPE_BLENDFACTOR_x */
  23 };
  24
  25 #define BLEND_OP_OVER 3
  26 static const struct xorg_composite_blend xorg_blends[] = {
  27    { PictOpClear,
  28      0, 0, PIPE_BLENDFACTOR_ZERO, PIPE_BLENDFACTOR_ZERO},
  29    { PictOpSrc,
  30      0, 0, PIPE_BLENDFACTOR_ONE, PIPE_BLENDFACTOR_ZERO},
  31    { PictOpDst,
  32      0, 0, PIPE_BLENDFACTOR_ZERO, PIPE_BLENDFACTOR_ONE},
  33    { PictOpOver,
  34      0, 1, PIPE_BLENDFACTOR_ONE, PIPE_BLENDFACTOR_INV_SRC_ALPHA},
  35    { PictOpOverReverse,
  36      1, 0, PIPE_BLENDFACTOR_INV_DST_ALPHA, PIPE_BLENDFACTOR_ONE},
  37    { PictOpIn,
  38      1, 0, PIPE_BLENDFACTOR_DST_ALPHA, PIPE_BLENDFACTOR_ZERO},
  39    { PictOpInReverse,
  40      0, 1, PIPE_BLENDFACTOR_ZERO, PIPE_BLENDFACTOR_SRC_ALPHA},
  41    { PictOpOut,
  42      1, 0, PIPE_BLENDFACTOR_INV_DST_ALPHA, PIPE_BLENDFACTOR_ZERO},
  43    { PictOpOutReverse,
  44      0, 1, PIPE_BLENDFACTOR_ZERO, PIPE_BLENDFACTOR_INV_SRC_ALPHA},
  45    { PictOpAtop,
  46      1, 1, PIPE_BLENDFACTOR_DST_ALPHA, PIPE_BLENDFACTOR_INV_SRC_ALPHA},
  47    { PictOpAtopReverse,
  48      1, 1, PIPE_BLENDFACTOR_INV_DST_ALPHA, PIPE_BLENDFACTOR_SRC_ALPHA},
  49    { PictOpXor,
  50      1, 1, PIPE_BLENDFACTOR_INV_DST_ALPHA, PIPE_BLENDFACTOR_INV_SRC_ALPHA},
  51    { PictOpAdd,
  52      0, 0, PIPE_BLENDFACTOR_ONE, PIPE_BLENDFACTOR_ONE},
  53 };
  54
  55
  56 static INLINE void
  57 pixel_to_float4(Pixel pixel, float *color)
  58 {
  59    CARD32           r, g, b, a;
  60
  61    a = (pixel >> 24) & 0xff;
  62    r = (pixel >> 16) & 0xff;
  63    g = (pixel >>  8) & 0xff;
  64    b = (pixel >>  0) & 0xff;
  65    color[0] = ((float)r) / 255.;
  66    color[1] = ((float)g) / 255.;
  67    color[2] = ((float)b) / 255.;
  68    color[3] = ((float)a) / 255.;
  69 }
  70
  71 static boolean
  72 blend_for_op(struct xorg_composite_blend *blend,
  73              int op, PicturePtr pSrcPicture, PicturePtr pMaskPicture,
  74              PicturePtr pDstPicture)
  75 {
  76    const int num_blends =
  77       sizeof(xorg_blends)/sizeof(struct xorg_composite_blend);
  78    int i;
  79    boolean supported = FALSE;
  80
  81    /* our default in case something goes wrong */
  82    *blend = xorg_blends[BLEND_OP_OVER];
  83
  84    for (i = 0; i < num_blends; ++i) {
  85       if (xorg_blends[i].op == op) {
  86          *blend = xorg_blends[i];
  87          supported = TRUE;
  88       }
  89    }
  90
  91    /* If there's no dst alpha channel, adjust the blend op so that we'll treat
  92     * it as always 1. */
  93    if (pDstPicture &&
  94        PICT_FORMAT_A(pDstPicture->format) == 0 && blend->alpha_dst) {
  95       if (blend->rgb_src == PIPE_BLENDFACTOR_DST_ALPHA)
  96          blend->rgb_src = PIPE_BLENDFACTOR_ONE;
  97       else if (blend->rgb_src == PIPE_BLENDFACTOR_INV_DST_ALPHA)
  98          blend->rgb_src = PIPE_BLENDFACTOR_ZERO;
  99    }
 100
 101    /* If the source alpha is being used, then we should only be in a case where
 102     * the source blend factor is 0, and the source blend value is the mask
 103     * channels multiplied by the source picture's alpha. */
 104    if (pMaskPicture && pMaskPicture->componentAlpha &&
 105        PICT_FORMAT_RGB(pMaskPicture->format) && blend->alpha_src) {
 106       if (blend->rgb_dst == PIPE_BLENDFACTOR_SRC_ALPHA) {
 107          blend->rgb_dst = PIPE_BLENDFACTOR_SRC_COLOR;
 108       } else if (blend->rgb_dst == PIPE_BLENDFACTOR_INV_SRC_ALPHA) {
 109          blend->rgb_dst = PIPE_BLENDFACTOR_INV_SRC_COLOR;
 110       }
 111    }
 112
 113    return supported;
 114 }
 115
 116 static INLINE int
 117 render_repeat_to_gallium(int mode)
 118 {
 119    switch(mode) {
 120    case RepeatNone:
 121       return PIPE_TEX_WRAP_CLAMP_TO_BORDER;
 122    case RepeatNormal:
 123       return PIPE_TEX_WRAP_REPEAT;
 124    case RepeatReflect:
 125       return PIPE_TEX_WRAP_MIRROR_REPEAT;
 126    case RepeatPad:
 127       return PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 128    default:
 129       debug_printf("Unsupported repeat mode\n");
 130    }
 131    return PIPE_TEX_WRAP_REPEAT;
 132 }
 133
 134 static INLINE boolean
 135 render_filter_to_gallium(int xrender_filter, int *out_filter)
 136 {
 137
 138    switch (xrender_filter) {
 139    case PictFilterNearest:
 140       *out_filter = PIPE_TEX_FILTER_NEAREST;
 141       break;
 142    case PictFilterBilinear:
 143       *out_filter = PIPE_TEX_FILTER_LINEAR;
 144       break;
 145    case PictFilterFast:
 146       *out_filter = PIPE_TEX_FILTER_NEAREST;
 147       break;
 148    case PictFilterGood:
 149       *out_filter = PIPE_TEX_FILTER_LINEAR;
 150       break;
 151    case PictFilterBest:
 152       *out_filter = PIPE_TEX_FILTER_LINEAR;
 153       break;
 154    default:
 155       debug_printf("Unkown xrender filter");
 156       *out_filter = PIPE_TEX_FILTER_NEAREST;
 157       return FALSE;
 158    }
 159
 160    return TRUE;
 161 }
 162
 163 static boolean is_filter_accelerated(PicturePtr pic)
 164 {
 165    int filter;
 166    if (pic && !render_filter_to_gallium(pic->filter, &filter))
 167        return FALSE;
 168    return TRUE;
 169 }
 170
 171 boolean xorg_composite_accelerated(int op,
 172                                    PicturePtr pSrcPicture,
 173                                    PicturePtr pMaskPicture,
 174                                    PicturePtr pDstPicture)
 175 {
 176    ScreenPtr pScreen = pDstPicture->pDrawable->pScreen;
 177    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 178    modesettingPtr ms = modesettingPTR(pScrn);
 179    struct xorg_composite_blend blend;
 180
 181    if (!is_filter_accelerated(pSrcPicture) ||
 182        !is_filter_accelerated(pMaskPicture)) {
 183       XORG_FALLBACK("Unsupported Xrender filter");
 184    }
 185
 186    if (pSrcPicture->pSourcePict) {
 187       if (pSrcPicture->pSourcePict->type != SourcePictTypeSolidFill)
 188          XORG_FALLBACK("Gradients not enabled (haven't been well tested)");
 189    }
 190
 191    if (blend_for_op(&blend, op,
 192                     pSrcPicture, pMaskPicture, pDstPicture)) {
 193       /* Check for component alpha */
 194       if (pMaskPicture && pMaskPicture->componentAlpha &&
 195           PICT_FORMAT_RGB(pMaskPicture->format)) {
 196          if (blend.alpha_src && blend.rgb_src != PIPE_BLENDFACTOR_ZERO) {
 197             XORG_FALLBACK("Component alpha not supported with source "
 198                           "alpha and source value blending. (op=%d)",
 199                           op);
 200          }
 201       }
 202
 203       return TRUE;
 204    }
 205    XORG_FALLBACK("Unsupported composition operation = %d", op);
 206 }
 207
 208 static void
 209 bind_blend_state(struct exa_context *exa, int op,
 210                  PicturePtr pSrcPicture,
 211                  PicturePtr pMaskPicture,
 212                  PicturePtr pDstPicture)
 213 {
 214    struct xorg_composite_blend blend_opt;
 215    struct pipe_blend_state blend;
 216
 217    blend_for_op(&blend_opt, op, pSrcPicture, pMaskPicture, pDstPicture);
 218
 219    memset(&blend, 0, sizeof(struct pipe_blend_state));
 220    blend.blend_enable = 1;
 221    blend.colormask |= PIPE_MASK_RGBA;
 222
 223    blend.rgb_src_factor   = blend_opt.rgb_src;
 224    blend.alpha_src_factor = blend_opt.rgb_src;
 225    blend.rgb_dst_factor   = blend_opt.rgb_dst;
 226    blend.alpha_dst_factor = blend_opt.rgb_dst;
 227
 228    cso_set_blend(exa->renderer->cso, &blend);
 229 }
 230
 231 static unsigned
 232 picture_format_fixups(struct exa_pixmap_priv *pSrc, PicturePtr pSrcPicture, boolean mask)
 233 {
 234    boolean set_alpha = FALSE;
 235    boolean swizzle = FALSE;
 236    unsigned ret = 0;
 237
 238    if (pSrc->picture_format == pSrcPicture->format) {
 239       if (pSrc->picture_format == PICT_a8)
 240          return mask ? FS_MASK_LUMINANCE : FS_SRC_LUMINANCE;
 241       return 0;
 242    }
 243
 244    if (pSrc->picture_format != PICT_a8r8g8b8) {
 245       assert(!"can not handle formats");
 246       return 0;
 247    }
 248
 249    /* pSrc->picture_format == PICT_a8r8g8b8 */
 250    switch (pSrcPicture->format) {
 251    case PICT_x8b8g8r8:
 252    case PICT_b8g8r8:
 253       set_alpha = TRUE; /* fall trough */
 254    case PICT_a8b8g8r8:
 255       swizzle = TRUE;
 256       break;
 257    case PICT_x8r8g8b8:
 258    case PICT_r8g8b8:
 259       set_alpha = TRUE; /* fall through */
 260    case PICT_a8r8g8b8:
 261       break;
 262 #ifdef PICT_TYPE_BGRA
 263    case PICT_b8g8r8a8:
 264    case PICT_b8g8r8x8:
 265    case PICT_a2r10g10b10:
 266    case PICT_x2r10g10b10:
 267    case PICT_a2b10g10r10:
 268    case PICT_x2b10g10r10:
 269 #endif
 270    default:
 271       assert(!"can not handle formats");
 272       return 0;
 273    }
 274
 275    if (set_alpha)
 276       ret |= mask ? FS_MASK_SET_ALPHA : FS_SRC_SET_ALPHA;
 277    if (swizzle)
 278       ret |= mask ? FS_MASK_SWIZZLE_RGB : FS_SRC_SWIZZLE_RGB;
 279
 280    return ret;
 281 }
 282
 283 static void
 284 bind_shaders(struct exa_context *exa, int op,
 285              PicturePtr pSrcPicture, PicturePtr pMaskPicture,
 286              struct exa_pixmap_priv *pSrc, struct exa_pixmap_priv *pMask)
 287 {
 288    unsigned vs_traits = 0, fs_traits = 0;
 289    struct xorg_shader shader;
 290
 291    exa->has_solid_color = FALSE;
 292
 293    if (pSrcPicture) {
 294       if (pSrcPicture->repeatType == RepeatNone && pSrcPicture->transform)
 295          fs_traits |= FS_SRC_REPEAT_NONE;
 296
 297       if (pSrcPicture->pSourcePict) {
 298          if (pSrcPicture->pSourcePict->type == SourcePictTypeSolidFill) {
 299             fs_traits |= FS_SOLID_FILL;
 300             vs_traits |= VS_SOLID_FILL;
 301             debug_assert(pSrcPicture->format == PICT_a8r8g8b8);
 302             pixel_to_float4(pSrcPicture->pSourcePict->solidFill.color,
 303                             exa->solid_color);
 304             exa->has_solid_color = TRUE;
 305          } else {
 306             debug_assert("!gradients not supported");
 307          }
 308       } else {
 309          fs_traits |= FS_COMPOSITE;
 310          vs_traits |= VS_COMPOSITE;
 311       }
 312
 313       fs_traits |= picture_format_fixups(pSrc, pSrcPicture, FALSE);
 314    }
 315
 316    if (pMaskPicture) {
 317       vs_traits |= VS_MASK;
 318       fs_traits |= FS_MASK;
 319       if (pMaskPicture->repeatType == RepeatNone && pMaskPicture->transform)
 320          fs_traits |= FS_MASK_REPEAT_NONE;
 321       if (pMaskPicture->componentAlpha) {
 322          struct xorg_composite_blend blend;
 323          blend_for_op(&blend, op,
 324                       pSrcPicture, pMaskPicture, NULL);
 325          if (blend.alpha_src) {
 326             fs_traits |= FS_CA_SRCALPHA;
 327          } else
 328             fs_traits |= FS_CA_FULL;
 329       }
 330
 331       fs_traits |= picture_format_fixups(pMask, pMaskPicture, TRUE);
 332    }
 333
 334    shader = xorg_shaders_get(exa->renderer->shaders, vs_traits, fs_traits);
 335    cso_set_vertex_shader_handle(exa->renderer->cso, shader.vs);
 336    cso_set_fragment_shader_handle(exa->renderer->cso, shader.fs);
 337 }
 338
 339 static void
 340 bind_samplers(struct exa_context *exa, int op,
 341               PicturePtr pSrcPicture, PicturePtr pMaskPicture,
 342               PicturePtr pDstPicture,
 343               struct exa_pixmap_priv *pSrc,
 344               struct exa_pixmap_priv *pMask,
 345               struct exa_pixmap_priv *pDst)
 346 {
 347    struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
 348    struct pipe_sampler_state src_sampler, mask_sampler;
 349
 350    exa->num_bound_samplers = 0;
 351
 352 #if 0
 353    if ((pSrc && (exa->pipe->is_texture_referenced(exa->pipe, pSrc->tex, 0, 0) &
 354                  PIPE_REFERENCED_FOR_WRITE)) ||
 355        (pMask && (exa->pipe->is_texture_referenced(exa->pipe, pMask->tex, 0, 0) &
 356         PIPE_REFERENCED_FOR_WRITE)))
 357       xorg_exa_flush(exa, PIPE_FLUSH_RENDER_CACHE, NULL);
 358 #endif
 359
 360    memset(&src_sampler, 0, sizeof(struct pipe_sampler_state));
 361    memset(&mask_sampler, 0, sizeof(struct pipe_sampler_state));
 362
 363    if (pSrcPicture && pSrc) {
 364       if (exa->has_solid_color) {
 365          debug_assert(!"solid color with textures");
 366          samplers[0] = NULL;
 367          exa->bound_textures[0] = NULL;
 368       } else {
 369          unsigned src_wrap = render_repeat_to_gallium(
 370             pSrcPicture->repeatType);
 371          int filter;
 372
 373          render_filter_to_gallium(pSrcPicture->filter, &filter);
 374
 375          src_sampler.wrap_s = src_wrap;
 376          src_sampler.wrap_t = src_wrap;
 377          src_sampler.min_img_filter = filter;
 378          src_sampler.mag_img_filter = filter;
 379          src_sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
 380          src_sampler.normalized_coords = 1;
 381          samplers[0] = &src_sampler;
 382          exa->bound_textures[0] = pSrc->tex;
 383          exa->num_bound_samplers = 1;
 384       }
 385    }
 386
 387    if (pMaskPicture && pMask) {
 388       unsigned mask_wrap = render_repeat_to_gallium(
 389          pMaskPicture->repeatType);
 390       int filter;
 391
 392       render_filter_to_gallium(pMaskPicture->filter, &filter);
 393
 394       mask_sampler.wrap_s = mask_wrap;
 395       mask_sampler.wrap_t = mask_wrap;
 396       mask_sampler.min_img_filter = filter;
 397       mask_sampler.mag_img_filter = filter;
 398       src_sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
 399       mask_sampler.normalized_coords = 1;
 400       samplers[1] = &mask_sampler;
 401       exa->bound_textures[1] = pMask->tex;
 402       exa->num_bound_samplers = 2;
 403    }
 404
 405    cso_set_samplers(exa->renderer->cso, exa->num_bound_samplers,
 406                     (const struct pipe_sampler_state **)samplers);
 407    cso_set_sampler_textures(exa->renderer->cso, exa->num_bound_samplers,
 408                             exa->bound_textures);
 409 }
 410
 411 static void
 412 setup_vs_constant_buffer(struct exa_context *exa,
 413                          int width, int height)
 414 {
 415    const int param_bytes = 8 * sizeof(float);
 416    float vs_consts[8] = {
 417       2.f/width, 2.f/height, 1, 1,
 418       -1, -1, 0, 0
 419    };
 420    renderer_set_constants(exa->renderer, PIPE_SHADER_VERTEX,
 421                           vs_consts, param_bytes);
 422 }
 423
 424
 425 static void
 426 setup_fs_constant_buffer(struct exa_context *exa)
 427 {
 428    const int param_bytes = 4 * sizeof(float);
 429    const float fs_consts[8] = {
 430       0, 0, 0, 1,
 431    };
 432    renderer_set_constants(exa->renderer, PIPE_SHADER_FRAGMENT,
 433                           fs_consts, param_bytes);
 434 }
 435
 436 static void
 437 setup_constant_buffers(struct exa_context *exa, struct exa_pixmap_priv *pDst)
 438 {
 439    int width = pDst->tex->width[0];
 440    int height = pDst->tex->height[0];
 441
 442    setup_vs_constant_buffer(exa, width, height);
 443    setup_fs_constant_buffer(exa);
 444 }
 445
 446 static INLINE boolean matrix_from_pict_transform(PictTransform *trans, float *matrix)
 447 {
 448    if (!trans)
 449       return FALSE;
 450
 451    matrix[0] = XFixedToDouble(trans->matrix[0][0]);
 452    matrix[3] = XFixedToDouble(trans->matrix[0][1]);
 453    matrix[6] = XFixedToDouble(trans->matrix[0][2]);
 454
 455    matrix[1] = XFixedToDouble(trans->matrix[1][0]);
 456    matrix[4] = XFixedToDouble(trans->matrix[1][1]);
 457    matrix[7] = XFixedToDouble(trans->matrix[1][2]);
 458
 459    matrix[2] = XFixedToDouble(trans->matrix[2][0]);
 460    matrix[5] = XFixedToDouble(trans->matrix[2][1]);
 461    matrix[8] = XFixedToDouble(trans->matrix[2][2]);
 462
 463    return TRUE;
 464 }
 465
 466 static void
 467 setup_transforms(struct  exa_context *exa,
 468                  PicturePtr pSrcPicture, PicturePtr pMaskPicture)
 469 {
 470    PictTransform *src_t = NULL;
 471    PictTransform *mask_t = NULL;
 472
 473    if (pSrcPicture)
 474       src_t = pSrcPicture->transform;
 475    if (pMaskPicture)
 476       mask_t = pMaskPicture->transform;
 477
 478    exa->transform.has_src  =
 479       matrix_from_pict_transform(src_t, exa->transform.src);
 480    exa->transform.has_mask =
 481       matrix_from_pict_transform(mask_t, exa->transform.mask);
 482 }
 483
 484 boolean xorg_composite_bind_state(struct exa_context *exa,
 485                                   int op,
 486                                   PicturePtr pSrcPicture,
 487                                   PicturePtr pMaskPicture,
 488                                   PicturePtr pDstPicture,
 489                                   struct exa_pixmap_priv *pSrc,
 490                                   struct exa_pixmap_priv *pMask,
 491                                   struct exa_pixmap_priv *pDst)
 492 {
 493    renderer_bind_framebuffer(exa->renderer, pDst);
 494    renderer_bind_viewport(exa->renderer, pDst);
 495    bind_blend_state(exa, op, pSrcPicture, pMaskPicture, pDstPicture);
 496    renderer_bind_rasterizer(exa->renderer);
 497    bind_shaders(exa, op, pSrcPicture, pMaskPicture, pSrc, pMask);
 498    bind_samplers(exa, op, pSrcPicture, pMaskPicture,
 499                  pDstPicture, pSrc, pMask, pDst);
 500    setup_constant_buffers(exa, pDst);
 501
 502    setup_transforms(exa, pSrcPicture, pMaskPicture);
 503
 504    if (exa->num_bound_samplers == 0 ) { /* solid fill */
 505       renderer_begin_solid(exa->renderer);
 506    } else {
 507       renderer_begin_textures(exa->renderer,
 508                               exa->bound_textures,
 509                               exa->num_bound_samplers);
 510    }
 511
 512    return TRUE;
 513 }
 514
 515 void xorg_composite(struct exa_context *exa,
 516                     struct exa_pixmap_priv *dst,
 517                     int srcX, int srcY, int maskX, int maskY,
 518                     int dstX, int dstY, int width, int height)
 519 {
 520    if (exa->num_bound_samplers == 0 ) { /* solid fill */
 521       renderer_solid(exa->renderer,
 522                      dstX, dstY, dstX + width, dstY + height,
 523                      exa->solid_color);
 524    } else {
 525       int pos[6] = {srcX, srcY, maskX, maskY, dstX, dstY};
 526       float *src_matrix = NULL;
 527       float *mask_matrix = NULL;
 528
 529       if (exa->transform.has_src)
 530          src_matrix = exa->transform.src;
 531       if (exa->transform.has_mask)
 532          mask_matrix = exa->transform.mask;
 533
 534       renderer_texture(exa->renderer,
 535                        pos, width, height,
 536                        exa->bound_textures,
 537                        exa->num_bound_samplers,
 538                        src_matrix, mask_matrix);
 539    }
 540 }
 541
 542 boolean xorg_solid_bind_state(struct exa_context *exa,
 543                               struct exa_pixmap_priv *pixmap,
 544                               Pixel fg)
 545 {
 546    unsigned vs_traits, fs_traits;
 547    struct xorg_shader shader;
 548
 549    pixel_to_float4(fg, exa->solid_color);
 550    exa->has_solid_color = TRUE;
 551
 552 #if 0
 553    debug_printf("Color Pixel=(%d, %d, %d, %d), RGBA=(%f, %f, %f, %f)\n",
 554                 (fg >> 24) & 0xff, (fg >> 16) & 0xff,
 555                 (fg >> 8) & 0xff,  (fg >> 0) & 0xff,
 556                 exa->solid_color[0], exa->solid_color[1],
 557                 exa->solid_color[2], exa->solid_color[3]);
 558 #endif
 559
 560    vs_traits = VS_SOLID_FILL;
 561    fs_traits = FS_SOLID_FILL;
 562
 563    renderer_bind_framebuffer(exa->renderer, pixmap);
 564    renderer_bind_viewport(exa->renderer, pixmap);
 565    renderer_bind_rasterizer(exa->renderer);
 566    bind_blend_state(exa, PictOpSrc, NULL, NULL, NULL);
 567    setup_constant_buffers(exa, pixmap);
 568
 569    shader = xorg_shaders_get(exa->renderer->shaders, vs_traits, fs_traits);
 570    cso_set_vertex_shader_handle(exa->renderer->cso, shader.vs);
 571    cso_set_fragment_shader_handle(exa->renderer->cso, shader.fs);
 572
 573    renderer_begin_solid(exa->renderer);
 574
 575    return TRUE;
 576 }
 577
 578 void xorg_solid(struct exa_context *exa,
 579                 struct exa_pixmap_priv *pixmap,
 580                 int x0, int y0, int x1, int y1)
 581 {
 582    renderer_solid(exa->renderer,
 583                   x0, y0, x1, y1, exa->solid_color);
 584 }
 585