src/gallium/state_trackers/xorg/xorg_renderer.c

   1 #include "xorg_exa.h"
   2 #include "xorg_renderer.h"
   3
   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 #include "util/u_memory.h"
  10 #include "util/u_rect.h"
  11 #include "util/u_sampler.h"
  12
  13 #include "util/u_inlines.h"
  14
  15 #include <math.h>
  16
  17 #define floatsEqual(x, y) (fabs(x - y) <= 0.00001f * MIN2(fabs(x), fabs(y)))
  18 #define floatIsZero(x) (floatsEqual((x) + 1, 1))
  19
  20 #define NUM_COMPONENTS 4
  21
  22 static INLINE boolean is_affine(float *matrix)
  23 {
  24    return floatIsZero(matrix[2]) && floatIsZero(matrix[5])
  25       && floatsEqual(matrix[8], 1);
  26 }
  27 static INLINE void map_point(float *mat, float x, float y,
  28                              float *out_x, float *out_y)
  29 {
  30    if (!mat) {
  31       *out_x = x;
  32       *out_y = y;
  33       return;
  34    }
  35
  36    *out_x = mat[0]*x + mat[3]*y + mat[6];
  37    *out_y = mat[1]*x + mat[4]*y + mat[7];
  38    if (!is_affine(mat)) {
  39       float w = 1/(mat[2]*x + mat[5]*y + mat[8]);
  40       *out_x *= w;
  41       *out_y *= w;
  42    }
  43 }
  44
  45 static INLINE struct pipe_resource *
  46 renderer_buffer_create(struct xorg_renderer *r)
  47 {
  48    struct pipe_resource *buf =
  49       pipe_user_buffer_create(r->pipe->screen,
  50                               r->buffer,
  51                               sizeof(float)*
  52                               r->buffer_size,
  53 /* XXX was: PIPE_BUFFER_USAGE_PIXEL/PIPE_BUFFER_USAGE_GPU_WRITE even though this is a vertex buffer??? */
  54                               PIPE_BIND_VERTEX_BUFFER);
  55    r->buffer_size = 0;
  56
  57    return buf;
  58 }
  59
  60 static INLINE void
  61 renderer_draw(struct xorg_renderer *r)
  62 {
  63    struct pipe_context *pipe = r->pipe;
  64    struct pipe_resource *buf = 0;
  65    int num_verts = r->buffer_size/(r->attrs_per_vertex * NUM_COMPONENTS);
  66
  67    if (!r->buffer_size)
  68       return;
  69
  70    buf = renderer_buffer_create(r);
  71
  72
  73    if (buf) {
  74       cso_set_vertex_elements(r->cso, r->attrs_per_vertex, r->velems);
  75
  76       util_draw_vertex_buffer(pipe, buf, 0,
  77                               PIPE_PRIM_QUADS,
  78                               num_verts,  /* verts */
  79                               r->attrs_per_vertex); /* attribs/vert */
  80
  81       pipe_resource_reference(&buf, NULL);
  82    }
  83 }
  84
  85 static INLINE void
  86 renderer_draw_conditional(struct xorg_renderer *r,
  87                           int next_batch)
  88 {
  89    if (r->buffer_size + next_batch >= BUF_SIZE ||
  90        (next_batch == 0 && r->buffer_size)) {
  91       renderer_draw(r);
  92    }
  93 }
  94
  95 static void
  96 renderer_init_state(struct xorg_renderer *r)
  97 {
  98    struct pipe_depth_stencil_alpha_state dsa;
  99    struct pipe_rasterizer_state raster;
 100    unsigned i;
 101
 102    /* set common initial clip state */
 103    memset(&dsa, 0, sizeof(struct pipe_depth_stencil_alpha_state));
 104    cso_set_depth_stencil_alpha(r->cso, &dsa);
 105
 106
 107    /* XXX: move to renderer_init_state? */
 108    memset(&raster, 0, sizeof(struct pipe_rasterizer_state));
 109    raster.gl_rasterization_rules = 1;
 110    cso_set_rasterizer(r->cso, &raster);
 111
 112    /* vertex elements state */
 113    memset(&r->velems[0], 0, sizeof(r->velems[0]) * 3);
 114    for (i = 0; i < 3; i++) {
 115       r->velems[i].src_offset = i * 4 * sizeof(float);
 116       r->velems[i].instance_divisor = 0;
 117       r->velems[i].vertex_buffer_index = 0;
 118       r->velems[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
 119    }
 120 }
 121
 122
 123 static INLINE void
 124 add_vertex_color(struct xorg_renderer *r,
 125                  float x, float y,
 126                  float color[4])
 127 {
 128    float *vertex = r->buffer + r->buffer_size;
 129
 130    vertex[0] = x;
 131    vertex[1] = y;
 132    vertex[2] = 0.f; /*z*/
 133    vertex[3] = 1.f; /*w*/
 134
 135    vertex[4] = color[0]; /*r*/
 136    vertex[5] = color[1]; /*g*/
 137    vertex[6] = color[2]; /*b*/
 138    vertex[7] = color[3]; /*a*/
 139
 140    r->buffer_size += 8;
 141 }
 142
 143 static INLINE void
 144 add_vertex_1tex(struct xorg_renderer *r,
 145                 float x, float y, float s, float t)
 146 {
 147    float *vertex = r->buffer + r->buffer_size;
 148
 149    vertex[0] = x;
 150    vertex[1] = y;
 151    vertex[2] = 0.f; /*z*/
 152    vertex[3] = 1.f; /*w*/
 153
 154    vertex[4] = s;   /*s*/
 155    vertex[5] = t;   /*t*/
 156    vertex[6] = 0.f; /*r*/
 157    vertex[7] = 1.f; /*q*/
 158
 159    r->buffer_size += 8;
 160 }
 161
 162 static void
 163 add_vertex_data1(struct xorg_renderer *r,
 164                  float srcX, float srcY,  float dstX, float dstY,
 165                  float width, float height,
 166                  struct pipe_resource *src, float *src_matrix)
 167 {
 168    float s0, t0, s1, t1, s2, t2, s3, t3;
 169    float pt0[2], pt1[2], pt2[2], pt3[2];
 170
 171    pt0[0] = srcX;
 172    pt0[1] = srcY;
 173    pt1[0] = (srcX + width);
 174    pt1[1] = srcY;
 175    pt2[0] = (srcX + width);
 176    pt2[1] = (srcY + height);
 177    pt3[0] = srcX;
 178    pt3[1] = (srcY + height);
 179
 180    if (src_matrix) {
 181       map_point(src_matrix, pt0[0], pt0[1], &pt0[0], &pt0[1]);
 182       map_point(src_matrix, pt1[0], pt1[1], &pt1[0], &pt1[1]);
 183       map_point(src_matrix, pt2[0], pt2[1], &pt2[0], &pt2[1]);
 184       map_point(src_matrix, pt3[0], pt3[1], &pt3[0], &pt3[1]);
 185    }
 186
 187    s0 =  pt0[0] / src->width0;
 188    s1 =  pt1[0] / src->width0;
 189    s2 =  pt2[0] / src->width0;
 190    s3 =  pt3[0] / src->width0;
 191    t0 =  pt0[1] / src->height0;
 192    t1 =  pt1[1] / src->height0;
 193    t2 =  pt2[1] / src->height0;
 194    t3 =  pt3[1] / src->height0;
 195
 196    /* 1st vertex */
 197    add_vertex_1tex(r, dstX, dstY, s0, t0);
 198    /* 2nd vertex */
 199    add_vertex_1tex(r, dstX + width, dstY, s1, t1);
 200    /* 3rd vertex */
 201    add_vertex_1tex(r, dstX + width, dstY + height, s2, t2);
 202    /* 4th vertex */
 203    add_vertex_1tex(r, dstX, dstY + height, s3, t3);
 204 }
 205
 206
 207 static INLINE void
 208 add_vertex_2tex(struct xorg_renderer *r,
 209                 float x, float y,
 210                 float s0, float t0, float s1, float t1)
 211 {
 212    float *vertex = r->buffer + r->buffer_size;
 213
 214    vertex[0] = x;
 215    vertex[1] = y;
 216    vertex[2] = 0.f; /*z*/
 217    vertex[3] = 1.f; /*w*/
 218
 219    vertex[4] = s0;  /*s*/
 220    vertex[5] = t0;  /*t*/
 221    vertex[6] = 0.f; /*r*/
 222    vertex[7] = 1.f; /*q*/
 223
 224    vertex[8] = s1;  /*s*/
 225    vertex[9] = t1;  /*t*/
 226    vertex[10] = 0.f; /*r*/
 227    vertex[11] = 1.f; /*q*/
 228
 229    r->buffer_size += 12;
 230 }
 231
 232 static void
 233 add_vertex_data2(struct xorg_renderer *r,
 234                  float srcX, float srcY, float maskX, float maskY,
 235                  float dstX, float dstY, float width, float height,
 236                  struct pipe_resource *src,
 237                  struct pipe_resource *mask,
 238                  float *src_matrix, float *mask_matrix)
 239 {
 240    float src_s0, src_t0, src_s1, src_t1;
 241    float mask_s0, mask_t0, mask_s1, mask_t1;
 242    float spt0[2], spt1[2];
 243    float mpt0[2], mpt1[2];
 244
 245    spt0[0] = srcX;
 246    spt0[1] = srcY;
 247    spt1[0] = srcX + width;
 248    spt1[1] = srcY + height;
 249
 250    mpt0[0] = maskX;
 251    mpt0[1] = maskY;
 252    mpt1[0] = maskX + width;
 253    mpt1[1] = maskY + height;
 254
 255    if (src_matrix) {
 256       map_point(src_matrix, spt0[0], spt0[1], &spt0[0], &spt0[1]);
 257       map_point(src_matrix, spt1[0], spt1[1], &spt1[0], &spt1[1]);
 258    }
 259
 260    if (mask_matrix) {
 261       map_point(mask_matrix, mpt0[0], mpt0[1], &mpt0[0], &mpt0[1]);
 262       map_point(mask_matrix, mpt1[0], mpt1[1], &mpt1[0], &mpt1[1]);
 263    }
 264
 265    src_s0 = spt0[0] / src->width0;
 266    src_t0 = spt0[1] / src->height0;
 267    src_s1 = spt1[0] / src->width0;
 268    src_t1 = spt1[1] / src->height0;
 269
 270    mask_s0 = mpt0[0] / mask->width0;
 271    mask_t0 = mpt0[1] / mask->height0;
 272    mask_s1 = mpt1[0] / mask->width0;
 273    mask_t1 = mpt1[1] / mask->height0;
 274
 275    /* 1st vertex */
 276    add_vertex_2tex(r, dstX, dstY,
 277                    src_s0, src_t0, mask_s0, mask_t0);
 278    /* 2nd vertex */
 279    add_vertex_2tex(r, dstX + width, dstY,
 280                    src_s1, src_t0, mask_s1, mask_t0);
 281    /* 3rd vertex */
 282    add_vertex_2tex(r, dstX + width, dstY + height,
 283                    src_s1, src_t1, mask_s1, mask_t1);
 284    /* 4th vertex */
 285    add_vertex_2tex(r, dstX, dstY + height,
 286                    src_s0, src_t1, mask_s0, mask_t1);
 287 }
 288
 289 static struct pipe_resource *
 290 setup_vertex_data_yuv(struct xorg_renderer *r,
 291                       float srcX, float srcY, float srcW, float srcH,
 292                       float dstX, float dstY, float dstW, float dstH,
 293                       struct pipe_resource **tex)
 294 {
 295    float s0, t0, s1, t1;
 296    float spt0[2], spt1[2];
 297
 298    spt0[0] = srcX;
 299    spt0[1] = srcY;
 300    spt1[0] = srcX + srcW;
 301    spt1[1] = srcY + srcH;
 302
 303    s0 = spt0[0] / tex[0]->width0;
 304    t0 = spt0[1] / tex[0]->height0;
 305    s1 = spt1[0] / tex[0]->width0;
 306    t1 = spt1[1] / tex[0]->height0;
 307
 308    /* 1st vertex */
 309    add_vertex_1tex(r, dstX, dstY, s0, t0);
 310    /* 2nd vertex */
 311    add_vertex_1tex(r, dstX + dstW, dstY,
 312                    s1, t0);
 313    /* 3rd vertex */
 314    add_vertex_1tex(r, dstX + dstW, dstY + dstH,
 315                    s1, t1);
 316    /* 4th vertex */
 317    add_vertex_1tex(r, dstX, dstY + dstH,
 318                    s0, t1);
 319
 320    return renderer_buffer_create(r);
 321 }
 322
 323
 324
 325 /* Set up framebuffer, viewport and vertex shader constant buffer
 326  * state for a particular destinaton surface.  In all our rendering,
 327  * these concepts are linked.
 328  */
 329 void renderer_bind_destination(struct xorg_renderer *r,
 330                                struct pipe_surface *surface,
 331                                int width,
 332                                int height )
 333 {
 334
 335    struct pipe_framebuffer_state fb;
 336    struct pipe_viewport_state viewport;
 337
 338    /* Framebuffer uses actual surface width/height
 339     */
 340    memset(&fb, 0, sizeof fb);
 341    fb.width  = surface->width;
 342    fb.height = surface->height;
 343    fb.nr_cbufs = 1;
 344    fb.cbufs[0] = surface;
 345    fb.zsbuf = 0;
 346
 347    /* Viewport just touches the bit we're interested in:
 348     */
 349    viewport.scale[0] =  width / 2.f;
 350    viewport.scale[1] =  height / 2.f;
 351    viewport.scale[2] =  1.0;
 352    viewport.scale[3] =  1.0;
 353    viewport.translate[0] = width / 2.f;
 354    viewport.translate[1] = height / 2.f;
 355    viewport.translate[2] = 0.0;
 356    viewport.translate[3] = 0.0;
 357
 358    /* Constant buffer set up to match viewport dimensions:
 359     */
 360    if (r->fb_width != width ||
 361        r->fb_height != height)
 362    {
 363       float vs_consts[8] = {
 364          2.f/width, 2.f/height, 1, 1,
 365          -1, -1, 0, 0
 366       };
 367
 368       r->fb_width = width;
 369       r->fb_height = height;
 370
 371       renderer_set_constants(r, PIPE_SHADER_VERTEX,
 372                              vs_consts, sizeof vs_consts);
 373    }
 374
 375    cso_set_framebuffer(r->cso, &fb);
 376    cso_set_viewport(r->cso, &viewport);
 377 }
 378
 379
 380 struct xorg_renderer * renderer_create(struct pipe_context *pipe)
 381 {
 382    struct xorg_renderer *renderer = CALLOC_STRUCT(xorg_renderer);
 383
 384    renderer->pipe = pipe;
 385    renderer->cso = cso_create_context(pipe);
 386    renderer->shaders = xorg_shaders_create(renderer);
 387
 388    renderer_init_state(renderer);
 389
 390    return renderer;
 391 }
 392
 393 void renderer_destroy(struct xorg_renderer *r)
 394 {
 395    struct pipe_resource **vsbuf = &r->vs_const_buffer;
 396    struct pipe_resource **fsbuf = &r->fs_const_buffer;
 397
 398    if (*vsbuf)
 399       pipe_resource_reference(vsbuf, NULL);
 400
 401    if (*fsbuf)
 402       pipe_resource_reference(fsbuf, NULL);
 403
 404    if (r->shaders) {
 405       xorg_shaders_destroy(r->shaders);
 406       r->shaders = NULL;
 407    }
 408
 409    if (r->cso) {
 410       cso_release_all(r->cso);
 411       cso_destroy_context(r->cso);
 412       r->cso = NULL;
 413    }
 414 }
 415
 416
 417
 418
 419
 420 void renderer_set_constants(struct xorg_renderer *r,
 421                             int shader_type,
 422                             const float *params,
 423                             int param_bytes)
 424 {
 425    struct pipe_resource **cbuf =
 426       (shader_type == PIPE_SHADER_VERTEX) ? &r->vs_const_buffer :
 427       &r->fs_const_buffer;
 428
 429    pipe_resource_reference(cbuf, NULL);
 430    *cbuf = pipe_buffer_create(r->pipe->screen,
 431                               PIPE_BIND_CONSTANT_BUFFER,
 432                               param_bytes);
 433
 434    if (*cbuf) {
 435       pipe_buffer_write(r->pipe, *cbuf,
 436                         0, param_bytes, params);
 437    }
 438    r->pipe->set_constant_buffer(r->pipe, shader_type, 0, *cbuf);
 439 }
 440
 441
 442 void renderer_copy_prepare(struct xorg_renderer *r,
 443                            struct pipe_surface *dst_surface,
 444                            struct pipe_resource *src_texture)
 445 {
 446    struct pipe_context *pipe = r->pipe;
 447    struct pipe_screen *screen = pipe->screen;
 448    struct xorg_shader shader;
 449
 450    assert(screen->is_format_supported(screen, dst_surface->format,
 451                                       PIPE_TEXTURE_2D,
 452                                       PIPE_BIND_RENDER_TARGET,
 453                                       0));
 454    (void) screen;
 455
 456
 457    /* set misc state we care about */
 458    {
 459       struct pipe_blend_state blend;
 460       memset(&blend, 0, sizeof(blend));
 461       blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE;
 462       blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
 463       blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
 464       blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
 465       blend.rt[0].colormask = PIPE_MASK_RGBA;
 466       cso_set_blend(r->cso, &blend);
 467    }
 468
 469    /* sampler */
 470    {
 471       struct pipe_sampler_state sampler;
 472       memset(&sampler, 0, sizeof(sampler));
 473       sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 474       sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 475       sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 476       sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
 477       sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
 478       sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
 479       sampler.normalized_coords = 1;
 480       cso_single_sampler(r->cso, 0, &sampler);
 481       cso_single_sampler_done(r->cso);
 482    }
 483
 484    renderer_bind_destination(r, dst_surface,
 485                              dst_surface->width,
 486                              dst_surface->height);
 487
 488    /* texture/sampler view */
 489    {
 490       struct pipe_sampler_view templ;
 491       struct pipe_sampler_view *src_view;
 492       u_sampler_view_default_template(&templ,
 493                                       src_texture,
 494                                       src_texture->format);
 495       src_view = pipe->create_sampler_view(pipe, src_texture, &templ);
 496       cso_set_fragment_sampler_views(r->cso, 1, &src_view);
 497       pipe_sampler_view_reference(&src_view, NULL);
 498    }
 499
 500    /* shaders */
 501    shader = xorg_shaders_get(r->shaders,
 502                              VS_COMPOSITE,
 503                              FS_COMPOSITE);
 504    cso_set_vertex_shader_handle(r->cso, shader.vs);
 505    cso_set_fragment_shader_handle(r->cso, shader.fs);
 506
 507    r->buffer_size = 0;
 508    r->attrs_per_vertex = 2;
 509 }
 510
 511 struct pipe_resource *
 512 renderer_clone_texture(struct xorg_renderer *r,
 513                        struct pipe_resource *src)
 514 {
 515    enum pipe_format format;
 516    struct pipe_context *pipe = r->pipe;
 517    struct pipe_screen *screen = pipe->screen;
 518    struct pipe_resource *pt;
 519    struct pipe_resource templ;
 520
 521    if (pipe->is_resource_referenced(pipe, src, 0, 0) &
 522        PIPE_REFERENCED_FOR_WRITE)
 523       pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
 524
 525    /* the coming in texture should already have that invariance */
 526    debug_assert(screen->is_format_supported(screen, src->format,
 527                                             PIPE_TEXTURE_2D,
 528                                             PIPE_BIND_SAMPLER_VIEW, 0));
 529
 530    format = src->format;
 531
 532    memset(&templ, 0, sizeof(templ));
 533    templ.target = PIPE_TEXTURE_2D;
 534    templ.format = format;
 535    templ.last_level = 0;
 536    templ.width0 = src->width0;
 537    templ.height0 = src->height0;
 538    templ.depth0 = 1;
 539    templ.bind = PIPE_BIND_SAMPLER_VIEW;
 540
 541    pt = screen->resource_create(screen, &templ);
 542
 543    debug_assert(!pt || pipe_is_referenced(&pt->reference));
 544
 545    if (!pt)
 546       return NULL;
 547
 548    {
 549       /* copy source framebuffer surface into texture */
 550       struct pipe_surface *ps_read = screen->get_tex_surface(
 551          screen, src, 0, 0, 0, PIPE_BIND_BLIT_SOURCE);
 552       struct pipe_surface *ps_tex = screen->get_tex_surface(
 553          screen, pt, 0, 0, 0, PIPE_BIND_BLIT_DESTINATION );
 554       if (pipe->surface_copy) {
 555          pipe->surface_copy(pipe,
 556                 ps_tex, /* dest */
 557                 0, 0, /* destx/y */
 558                 ps_read,
 559                 0, 0, src->width0, src->height0);
 560       } else {
 561           util_surface_copy(pipe, FALSE,
 562                 ps_tex, /* dest */
 563                 0, 0, /* destx/y */
 564                 ps_read,
 565                 0, 0, src->width0, src->height0);
 566       }
 567       pipe_surface_reference(&ps_read, NULL);
 568       pipe_surface_reference(&ps_tex, NULL);
 569    }
 570
 571    return pt;
 572 }
 573
 574
 575 void renderer_copy_pixmap(struct xorg_renderer *r,
 576                           int dx, int dy,
 577                           int sx, int sy,
 578                           int width, int height,
 579                           float src_width,
 580                           float src_height)
 581 {
 582    float s0, t0, s1, t1;
 583    float x0, y0, x1, y1;
 584
 585
 586    /* XXX: could put the texcoord scaling calculation into the vertex
 587     * shader.
 588     */
 589    s0 = sx            / src_width;
 590    s1 = (sx + width)  / src_width;
 591    t0 = sy            / src_height;
 592    t1 = (sy + height) / src_height;
 593
 594    x0 = dx;
 595    x1 = dx + width;
 596    y0 = dy;
 597    y1 = dy + height;
 598
 599    /* draw quad */
 600    renderer_draw_conditional(r, 4*8);
 601    add_vertex_1tex(r, x0, y0, s0, t0);
 602    add_vertex_1tex(r, x1, y0, s1, t0);
 603    add_vertex_1tex(r, x1, y1, s1, t1);
 604    add_vertex_1tex(r, x0, y1, s0, t1);
 605 }
 606
 607
 608
 609
 610 void renderer_draw_yuv(struct xorg_renderer *r,
 611                        int src_x, int src_y, int src_w, int src_h,
 612                        int dst_x, int dst_y, int dst_w, int dst_h,
 613                        struct pipe_resource **textures)
 614 {
 615    struct pipe_context *pipe = r->pipe;
 616    struct pipe_resource *buf = 0;
 617
 618    buf = setup_vertex_data_yuv(r,
 619                                src_x, src_y, src_w, src_h,
 620                                dst_x, dst_y, dst_w, dst_h,
 621                                textures);
 622
 623    if (buf) {
 624       const int num_attribs = 2; /*pos + tex coord*/
 625
 626       cso_set_vertex_elements(r->cso, num_attribs, r->velems);
 627
 628       util_draw_vertex_buffer(pipe, buf, 0,
 629                               PIPE_PRIM_QUADS,
 630                               4,  /* verts */
 631                               num_attribs); /* attribs/vert */
 632
 633       pipe_resource_reference(&buf, NULL);
 634    }
 635 }
 636
 637 void renderer_begin_solid(struct xorg_renderer *r)
 638 {
 639    r->buffer_size = 0;
 640    r->attrs_per_vertex = 2;
 641 }
 642
 643 void renderer_solid(struct xorg_renderer *r,
 644                     int x0, int y0,
 645                     int x1, int y1,
 646                     float *color)
 647 {
 648    /*
 649    debug_printf("solid rect[(%d, %d), (%d, %d)], rgba[%f, %f, %f, %f]\n",
 650    x0, y0, x1, y1, color[0], color[1], color[2], color[3]);*/
 651
 652    renderer_draw_conditional(r, 4 * 8);
 653
 654    /* 1st vertex */
 655    add_vertex_color(r, x0, y0, color);
 656    /* 2nd vertex */
 657    add_vertex_color(r, x1, y0, color);
 658    /* 3rd vertex */
 659    add_vertex_color(r, x1, y1, color);
 660    /* 4th vertex */
 661    add_vertex_color(r, x0, y1, color);
 662 }
 663
 664 void renderer_draw_flush(struct xorg_renderer *r)
 665 {
 666    renderer_draw_conditional(r, 0);
 667 }
 668
 669 void renderer_begin_textures(struct xorg_renderer *r,
 670                              int num_textures)
 671 {
 672    r->attrs_per_vertex = 1 + num_textures;
 673    r->buffer_size = 0;
 674 }
 675
 676 void renderer_texture(struct xorg_renderer *r,
 677                       int *pos,
 678                       int width, int height,
 679                       struct pipe_sampler_view **sampler_view,
 680                       int num_textures,
 681                       float *src_matrix,
 682                       float *mask_matrix)
 683 {
 684
 685 #if 0
 686    if (src_matrix) {
 687       debug_printf("src_matrix = \n");
 688       debug_printf("%f, %f, %f\n", src_matrix[0], src_matrix[1], src_matrix[2]);
 689       debug_printf("%f, %f, %f\n", src_matrix[3], src_matrix[4], src_matrix[5]);
 690       debug_printf("%f, %f, %f\n", src_matrix[6], src_matrix[7], src_matrix[8]);
 691    }
 692    if (mask_matrix) {
 693       debug_printf("mask_matrix = \n");
 694       debug_printf("%f, %f, %f\n", mask_matrix[0], mask_matrix[1], mask_matrix[2]);
 695       debug_printf("%f, %f, %f\n", mask_matrix[3], mask_matrix[4], mask_matrix[5]);
 696       debug_printf("%f, %f, %f\n", mask_matrix[6], mask_matrix[7], mask_matrix[8]);
 697    }
 698 #endif
 699
 700    switch(r->attrs_per_vertex) {
 701    case 2:
 702       renderer_draw_conditional(r, 4 * 8);
 703       add_vertex_data1(r,
 704                        pos[0], pos[1], /* src */
 705                        pos[4], pos[5], /* dst */
 706                        width, height,
 707                        sampler_view[0]->texture, src_matrix);
 708       break;
 709    case 3:
 710       renderer_draw_conditional(r, 4 * 12);
 711       add_vertex_data2(r,
 712                        pos[0], pos[1], /* src */
 713                        pos[2], pos[3], /* mask */
 714                        pos[4], pos[5], /* dst */
 715                        width, height,
 716                        sampler_view[0]->texture, sampler_view[1]->texture,
 717                        src_matrix, mask_matrix);
 718       break;
 719    default:
 720       debug_assert(!"Unsupported number of textures");
 721       break;
 722    }
 723 }