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
  12 #include "pipe/p_inlines.h"
  13
  14 #include <math.h>
  15
  16 enum AxisOrientation {
  17    Y0_BOTTOM,
  18    Y0_TOP
  19 };
  20
  21 #define floatsEqual(x, y) (fabs(x - y) <= 0.00001f * MIN2(fabs(x), fabs(y)))
  22 #define floatIsZero(x) (floatsEqual((x) + 1, 1))
  23
  24 #define NUM_COMPONENTS 4
  25
  26 static INLINE boolean is_affine(float *matrix)
  27 {
  28    return floatIsZero(matrix[2]) && floatIsZero(matrix[5])
  29       && floatsEqual(matrix[8], 1);
  30 }
  31 static INLINE void map_point(float *mat, float x, float y,
  32                              float *out_x, float *out_y)
  33 {
  34    if (!mat) {
  35       *out_x = x;
  36       *out_y = y;
  37       return;
  38    }
  39
  40    *out_x = mat[0]*x + mat[3]*y + mat[6];
  41    *out_y = mat[1]*x + mat[4]*y + mat[7];
  42    if (!is_affine(mat)) {
  43       float w = 1/(mat[2]*x + mat[5]*y + mat[8]);
  44       *out_x *= w;
  45       *out_y *= w;
  46    }
  47 }
  48
  49 static INLINE struct pipe_buffer *
  50 renderer_buffer_create(struct xorg_renderer *r)
  51 {
  52    struct pipe_buffer *buf =
  53       pipe_user_buffer_create(r->pipe->screen,
  54                               r->buffer,
  55                               sizeof(float)*
  56                               r->buffer_size);
  57    r->buffer_size = 0;
  58
  59    return buf;
  60 }
  61
  62 static INLINE void
  63 renderer_draw(struct xorg_renderer *r)
  64 {
  65    struct pipe_context *pipe = r->pipe;
  66    struct pipe_buffer *buf = 0;
  67    int num_verts = r->buffer_size/(r->attrs_per_vertex * NUM_COMPONENTS);
  68
  69    if (!r->buffer_size)
  70       return;
  71
  72    buf = renderer_buffer_create(r);
  73
  74
  75    if (buf) {
  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_buffer_reference(&buf, NULL);
  82       pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
  83    }
  84 }
  85
  86 static INLINE void
  87 renderer_draw_conditional(struct xorg_renderer *r,
  88                           int next_batch)
  89 {
  90    if (r->buffer_size + next_batch >= BUF_SIZE ||
  91        (next_batch == 0 && r->buffer_size)) {
  92       renderer_draw(r);
  93    }
  94 }
  95
  96 static void
  97 renderer_init_state(struct xorg_renderer *r)
  98 {
  99    struct pipe_depth_stencil_alpha_state dsa;
 100    struct pipe_rasterizer_state raster;
 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 }
 113
 114
 115 static INLINE void
 116 add_vertex_color(struct xorg_renderer *r,
 117                  float x, float y,
 118                  float color[4])
 119 {
 120    float *vertex = r->buffer + r->buffer_size;
 121
 122    vertex[0] = x;
 123    vertex[1] = y;
 124    vertex[2] = 0.f; /*z*/
 125    vertex[3] = 1.f; /*w*/
 126
 127    vertex[4] = color[0]; /*r*/
 128    vertex[5] = color[1]; /*g*/
 129    vertex[6] = color[2]; /*b*/
 130    vertex[7] = color[3]; /*a*/
 131
 132    r->buffer_size += 8;
 133 }
 134
 135 static INLINE void
 136 add_vertex_1tex(struct xorg_renderer *r,
 137                 float x, float y, float s, float t)
 138 {
 139    float *vertex = r->buffer + r->buffer_size;
 140
 141    vertex[0] = x;
 142    vertex[1] = y;
 143    vertex[2] = 0.f; /*z*/
 144    vertex[3] = 1.f; /*w*/
 145
 146    vertex[4] = s;   /*s*/
 147    vertex[5] = t;   /*t*/
 148    vertex[6] = 0.f; /*r*/
 149    vertex[7] = 1.f; /*q*/
 150
 151    r->buffer_size += 8;
 152 }
 153
 154 static void
 155 add_vertex_data1(struct xorg_renderer *r,
 156                  float srcX, float srcY,  float dstX, float dstY,
 157                  float width, float height,
 158                  struct pipe_texture *src, float *src_matrix)
 159 {
 160    float s0, t0, s1, t1, s2, t2, s3, t3;
 161    float pt0[2], pt1[2], pt2[2], pt3[2];
 162
 163    pt0[0] = srcX;
 164    pt0[1] = srcY;
 165    pt1[0] = (srcX + width);
 166    pt1[1] = srcY;
 167    pt2[0] = (srcX + width);
 168    pt2[1] = (srcY + height);
 169    pt3[0] = srcX;
 170    pt3[1] = (srcY + height);
 171
 172    if (src_matrix) {
 173       map_point(src_matrix, pt0[0], pt0[1], &pt0[0], &pt0[1]);
 174       map_point(src_matrix, pt1[0], pt1[1], &pt1[0], &pt1[1]);
 175       map_point(src_matrix, pt2[0], pt2[1], &pt2[0], &pt2[1]);
 176       map_point(src_matrix, pt3[0], pt3[1], &pt3[0], &pt3[1]);
 177    }
 178
 179    s0 =  pt0[0] / src->width[0];
 180    s1 =  pt1[0] / src->width[0];
 181    s2 =  pt2[0] / src->width[0];
 182    s3 =  pt3[0] / src->width[0];
 183    t0 =  pt0[1] / src->height[0];
 184    t1 =  pt1[1] / src->height[0];
 185    t2 =  pt2[1] / src->height[0];
 186    t3 =  pt3[1] / src->height[0];
 187
 188    /* 1st vertex */
 189    add_vertex_1tex(r, dstX, dstY, s0, t0);
 190    /* 2nd vertex */
 191    add_vertex_1tex(r, dstX + width, dstY, s1, t1);
 192    /* 3rd vertex */
 193    add_vertex_1tex(r, dstX + width, dstY + height, s2, t2);
 194    /* 4th vertex */
 195    add_vertex_1tex(r, dstX, dstY + height, s3, t3);
 196 }
 197
 198
 199 static INLINE void
 200 add_vertex_2tex(struct xorg_renderer *r,
 201                 float x, float y,
 202                 float s0, float t0, float s1, float t1)
 203 {
 204    float *vertex = r->buffer + r->buffer_size;
 205
 206    vertex[0] = x;
 207    vertex[1] = y;
 208    vertex[2] = 0.f; /*z*/
 209    vertex[3] = 1.f; /*w*/
 210
 211    vertex[4] = s0;  /*s*/
 212    vertex[5] = t0;  /*t*/
 213    vertex[6] = 0.f; /*r*/
 214    vertex[7] = 1.f; /*q*/
 215
 216    vertex[8] = s1;  /*s*/
 217    vertex[9] = t1;  /*t*/
 218    vertex[10] = 0.f; /*r*/
 219    vertex[11] = 1.f; /*q*/
 220
 221    r->buffer_size += 12;
 222 }
 223
 224 static void
 225 add_vertex_data2(struct xorg_renderer *r,
 226                  float srcX, float srcY, float maskX, float maskY,
 227                  float dstX, float dstY, float width, float height,
 228                  struct pipe_texture *src,
 229                  struct pipe_texture *mask,
 230                  float *src_matrix, float *mask_matrix)
 231 {
 232    float src_s0, src_t0, src_s1, src_t1;
 233    float mask_s0, mask_t0, mask_s1, mask_t1;
 234    float spt0[2], spt1[2];
 235    float mpt0[2], mpt1[2];
 236
 237    spt0[0] = srcX;
 238    spt0[1] = srcY;
 239    spt1[0] = srcX + width;
 240    spt1[1] = srcY + height;
 241
 242    mpt0[0] = maskX;
 243    mpt0[1] = maskY;
 244    mpt1[0] = maskX + width;
 245    mpt1[1] = maskY + height;
 246
 247    if (src_matrix) {
 248       map_point(src_matrix, spt0[0], spt0[1], &spt0[0], &spt0[1]);
 249       map_point(src_matrix, spt1[0], spt1[1], &spt1[0], &spt1[1]);
 250    }
 251
 252    if (mask_matrix) {
 253       map_point(mask_matrix, mpt0[0], mpt0[1], &mpt0[0], &mpt0[1]);
 254       map_point(mask_matrix, mpt1[0], mpt1[1], &mpt1[0], &mpt1[1]);
 255    }
 256
 257    src_s0 = spt0[0] / src->width[0];
 258    src_t0 = spt0[1] / src->height[0];
 259    src_s1 = spt1[0] / src->width[0];
 260    src_t1 = spt1[1] / src->height[0];
 261
 262    mask_s0 = mpt0[0] / mask->width[0];
 263    mask_t0 = mpt0[1] / mask->height[0];
 264    mask_s1 = mpt1[0] / mask->width[0];
 265    mask_t1 = mpt1[1] / mask->height[0];
 266
 267    /* 1st vertex */
 268    add_vertex_2tex(r, dstX, dstY,
 269                    src_s0, src_t0, mask_s0, mask_t0);
 270    /* 2nd vertex */
 271    add_vertex_2tex(r, dstX + width, dstY,
 272                    src_s1, src_t0, mask_s1, mask_t0);
 273    /* 3rd vertex */
 274    add_vertex_2tex(r, dstX + width, dstY + height,
 275                    src_s1, src_t1, mask_s1, mask_t1);
 276    /* 4th vertex */
 277    add_vertex_2tex(r, dstX, dstY + height,
 278                    src_s0, src_t1, mask_s0, mask_t1);
 279 }
 280
 281 static struct pipe_buffer *
 282 setup_vertex_data_yuv(struct xorg_renderer *r,
 283                       float srcX, float srcY, float srcW, float srcH,
 284                       float dstX, float dstY, float dstW, float dstH,
 285                       struct pipe_texture **tex)
 286 {
 287    float s0, t0, s1, t1;
 288    float spt0[2], spt1[2];
 289
 290    spt0[0] = srcX;
 291    spt0[1] = srcY;
 292    spt1[0] = srcX + srcW;
 293    spt1[1] = srcY + srcH;
 294
 295    s0 = spt0[0] / tex[0]->width[0];
 296    t0 = spt0[1] / tex[0]->height[0];
 297    s1 = spt1[0] / tex[0]->width[0];
 298    t1 = spt1[1] / tex[0]->height[0];
 299
 300    /* 1st vertex */
 301    add_vertex_1tex(r, dstX, dstY, s0, t0);
 302    /* 2nd vertex */
 303    add_vertex_1tex(r, dstX + dstW, dstY,
 304                    s1, t0);
 305    /* 3rd vertex */
 306    add_vertex_1tex(r, dstX + dstW, dstY + dstH,
 307                    s1, t1);
 308    /* 4th vertex */
 309    add_vertex_1tex(r, dstX, dstY + dstH,
 310                    s0, t1);
 311
 312    return renderer_buffer_create(r);
 313 }
 314
 315
 316
 317 /* Set up framebuffer, viewport and vertex shader constant buffer
 318  * state for a particular destinaton surface.  In all our rendering,
 319  * these concepts are linked.
 320  */
 321 void renderer_bind_destination(struct xorg_renderer *r,
 322                                struct pipe_surface *surface )
 323 {
 324
 325    struct pipe_framebuffer_state fb;
 326    struct pipe_viewport_state viewport;
 327    int width = surface->width;
 328    int height = surface->height;
 329
 330    memset(&fb, 0, sizeof fb);
 331    fb.width  = width;
 332    fb.height = height;
 333    fb.nr_cbufs = 1;
 334    fb.cbufs[0] = surface;
 335    fb.zsbuf = 0;
 336
 337    viewport.scale[0] =  width / 2.f;
 338    viewport.scale[1] =  height / 2.f;
 339    viewport.scale[2] =  1.0;
 340    viewport.scale[3] =  1.0;
 341    viewport.translate[0] = width / 2.f;
 342    viewport.translate[1] = height / 2.f;
 343    viewport.translate[2] = 0.0;
 344    viewport.translate[3] = 0.0;
 345
 346    if (r->fb_width != width ||
 347        r->fb_height != height)
 348    {
 349       float vs_consts[8] = {
 350          2.f/width, 2.f/height, 1, 1,
 351          -1, -1, 0, 0
 352       };
 353
 354       r->fb_width = width;
 355       r->fb_height = height;
 356
 357       renderer_set_constants(r, PIPE_SHADER_VERTEX,
 358                              vs_consts, sizeof vs_consts);
 359    }
 360
 361    cso_set_framebuffer(r->cso, &fb);
 362    cso_set_viewport(r->cso, &viewport);
 363 }
 364
 365
 366 struct xorg_renderer * renderer_create(struct pipe_context *pipe)
 367 {
 368    struct xorg_renderer *renderer = CALLOC_STRUCT(xorg_renderer);
 369
 370    renderer->pipe = pipe;
 371    renderer->cso = cso_create_context(pipe);
 372    renderer->shaders = xorg_shaders_create(renderer);
 373
 374    renderer_init_state(renderer);
 375
 376    return renderer;
 377 }
 378
 379 void renderer_destroy(struct xorg_renderer *r)
 380 {
 381    struct pipe_constant_buffer *vsbuf = &r->vs_const_buffer;
 382    struct pipe_constant_buffer *fsbuf = &r->fs_const_buffer;
 383
 384    if (vsbuf && vsbuf->buffer)
 385       pipe_buffer_reference(&vsbuf->buffer, NULL);
 386
 387    if (fsbuf && fsbuf->buffer)
 388       pipe_buffer_reference(&fsbuf->buffer, NULL);
 389
 390    if (r->shaders) {
 391       xorg_shaders_destroy(r->shaders);
 392       r->shaders = NULL;
 393    }
 394
 395    if (r->cso) {
 396       cso_release_all(r->cso);
 397       cso_destroy_context(r->cso);
 398       r->cso = NULL;
 399    }
 400 }
 401
 402
 403
 404
 405
 406 void renderer_set_constants(struct xorg_renderer *r,
 407                             int shader_type,
 408                             const float *params,
 409                             int param_bytes)
 410 {
 411    struct pipe_constant_buffer *cbuf =
 412       (shader_type == PIPE_SHADER_VERTEX) ? &r->vs_const_buffer :
 413       &r->fs_const_buffer;
 414
 415    pipe_buffer_reference(&cbuf->buffer, NULL);
 416    cbuf->buffer = pipe_buffer_create(r->pipe->screen, 16,
 417                                      PIPE_BUFFER_USAGE_CONSTANT,
 418                                      param_bytes);
 419
 420    if (cbuf->buffer) {
 421       pipe_buffer_write(r->pipe->screen, cbuf->buffer,
 422                         0, param_bytes, params);
 423    }
 424    r->pipe->set_constant_buffer(r->pipe, shader_type, 0, cbuf);
 425 }
 426
 427
 428 void renderer_copy_prepare(struct xorg_renderer *r,
 429                            struct pipe_surface *dst_surface,
 430                            struct pipe_texture *src_texture)
 431 {
 432    struct pipe_context *pipe = r->pipe;
 433    struct pipe_screen *screen = pipe->screen;
 434    struct xorg_shader shader;
 435
 436    assert(screen->is_format_supported(screen, dst_surface->format,
 437                                       PIPE_TEXTURE_2D,
 438                                       PIPE_TEXTURE_USAGE_RENDER_TARGET,
 439                                       0));
 440
 441
 442    /* set misc state we care about */
 443    {
 444       struct pipe_blend_state blend;
 445       memset(&blend, 0, sizeof(blend));
 446       blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE;
 447       blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE;
 448       blend.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
 449       blend.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
 450       blend.colormask = PIPE_MASK_RGBA;
 451       cso_set_blend(r->cso, &blend);
 452    }
 453
 454    /* sampler */
 455    {
 456       struct pipe_sampler_state sampler;
 457       memset(&sampler, 0, sizeof(sampler));
 458       sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 459       sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 460       sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 461       sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
 462       sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
 463       sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
 464       sampler.normalized_coords = 1;
 465       cso_single_sampler(r->cso, 0, &sampler);
 466       cso_single_sampler_done(r->cso);
 467    }
 468
 469    renderer_bind_destination(r, dst_surface);
 470
 471    /* texture */
 472    cso_set_sampler_textures(r->cso, 1, &src_texture);
 473
 474    /* shaders */
 475    shader = xorg_shaders_get(r->shaders,
 476                              VS_COMPOSITE,
 477                              FS_COMPOSITE);
 478    cso_set_vertex_shader_handle(r->cso, shader.vs);
 479    cso_set_fragment_shader_handle(r->cso, shader.fs);
 480
 481    r->buffer_size = 0;
 482    r->attrs_per_vertex = 2;
 483 }
 484
 485 struct pipe_texture *
 486 renderer_clone_texture(struct xorg_renderer *r,
 487                        struct pipe_texture *src)
 488 {
 489    enum pipe_format format;
 490    struct pipe_context *pipe = r->pipe;
 491    struct pipe_screen *screen = pipe->screen;
 492    struct pipe_texture *pt;
 493    struct pipe_texture templ;
 494
 495    if (pipe->is_texture_referenced(pipe, src, 0, 0) &
 496        PIPE_REFERENCED_FOR_WRITE)
 497       pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
 498
 499    /* the coming in texture should already have that invariance */
 500    debug_assert(screen->is_format_supported(screen, src->format,
 501                                             PIPE_TEXTURE_2D,
 502                                             PIPE_TEXTURE_USAGE_SAMPLER, 0));
 503
 504    format = src->format;
 505
 506    memset(&templ, 0, sizeof(templ));
 507    templ.target = PIPE_TEXTURE_2D;
 508    templ.format = format;
 509    templ.last_level = 0;
 510    templ.width[0] = src->width[0];
 511    templ.height[0] = src->height[0];
 512    templ.depth[0] = 1;
 513    pf_get_block(format, &templ.block);
 514    templ.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER;
 515
 516    pt = screen->texture_create(screen, &templ);
 517
 518    debug_assert(!pt || pipe_is_referenced(&pt->reference));
 519
 520    if (!pt)
 521       return NULL;
 522
 523    {
 524       /* copy source framebuffer surface into texture */
 525       struct pipe_surface *ps_read = screen->get_tex_surface(
 526          screen, src, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_READ);
 527       struct pipe_surface *ps_tex = screen->get_tex_surface(
 528          screen, pt, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_WRITE );
 529       if (pipe->surface_copy) {
 530          pipe->surface_copy(pipe,
 531                 ps_tex, /* dest */
 532                 0, 0, /* destx/y */
 533                 ps_read,
 534                 0, 0, src->width[0], src->height[0]);
 535       } else {
 536           util_surface_copy(pipe, FALSE,
 537                 ps_tex, /* dest */
 538                 0, 0, /* destx/y */
 539                 ps_read,
 540                 0, 0, src->width[0], src->height[0]);
 541       }
 542       pipe_surface_reference(&ps_read, NULL);
 543       pipe_surface_reference(&ps_tex, NULL);
 544    }
 545
 546    return pt;
 547 }
 548
 549
 550 void renderer_copy_pixmap(struct xorg_renderer *r,
 551                           int dx, int dy,
 552                           int sx, int sy,
 553                           int width, int height,
 554                           float src_width,
 555                           float src_height)
 556 {
 557    float s0, t0, s1, t1;
 558    float x0, y0, x1, y1;
 559
 560
 561    /* XXX: could put the texcoord scaling calculation into the vertex
 562     * shader.
 563     */
 564    s0 = sx            / src_width;
 565    s1 = (sx + width)  / src_width;
 566    t0 = sy            / src_height;
 567    t1 = (sy + height) / src_height;
 568
 569    x0 = dx;
 570    x1 = dx + width;
 571    y0 = dy;
 572    y1 = dy + height;
 573
 574    /* draw quad */
 575    renderer_draw_conditional(r, 4*8);
 576    add_vertex_1tex(r, x0, y0, s0, t0);
 577    add_vertex_1tex(r, x1, y0, s1, t0);
 578    add_vertex_1tex(r, x1, y1, s1, t1);
 579    add_vertex_1tex(r, x0, y1, s0, t1);
 580 }
 581
 582
 583
 584
 585 void renderer_draw_yuv(struct xorg_renderer *r,
 586                        int src_x, int src_y, int src_w, int src_h,
 587                        int dst_x, int dst_y, int dst_w, int dst_h,
 588                        struct pipe_texture **textures)
 589 {
 590    struct pipe_context *pipe = r->pipe;
 591    struct pipe_buffer *buf = 0;
 592
 593    buf = setup_vertex_data_yuv(r,
 594                                src_x, src_y, src_w, src_h,
 595                                dst_x, dst_y, dst_w, dst_h,
 596                                textures);
 597
 598    if (buf) {
 599       const int num_attribs = 2; /*pos + tex coord*/
 600
 601       util_draw_vertex_buffer(pipe, buf, 0,
 602                               PIPE_PRIM_QUADS,
 603                               4,  /* verts */
 604                               num_attribs); /* attribs/vert */
 605
 606       pipe_buffer_reference(&buf, NULL);
 607    }
 608 }
 609
 610 void renderer_begin_solid(struct xorg_renderer *r)
 611 {
 612    r->buffer_size = 0;
 613    r->attrs_per_vertex = 2;
 614 }
 615
 616 void renderer_solid(struct xorg_renderer *r,
 617                     int x0, int y0,
 618                     int x1, int y1,
 619                     float *color)
 620 {
 621    /*
 622    debug_printf("solid rect[(%d, %d), (%d, %d)], rgba[%f, %f, %f, %f]\n",
 623    x0, y0, x1, y1, color[0], color[1], color[2], color[3]);*/
 624
 625    renderer_draw_conditional(r, 4 * 8);
 626
 627    /* 1st vertex */
 628    add_vertex_color(r, x0, y0, color);
 629    /* 2nd vertex */
 630    add_vertex_color(r, x1, y0, color);
 631    /* 3rd vertex */
 632    add_vertex_color(r, x1, y1, color);
 633    /* 4th vertex */
 634    add_vertex_color(r, x0, y1, color);
 635 }
 636
 637 void renderer_draw_flush(struct xorg_renderer *r)
 638 {
 639    renderer_draw_conditional(r, 0);
 640 }
 641
 642 void renderer_begin_textures(struct xorg_renderer *r,
 643                              struct pipe_texture **textures,
 644                              int num_textures)
 645 {
 646    r->attrs_per_vertex = 1 + num_textures;
 647    r->buffer_size = 0;
 648 }
 649
 650 void renderer_texture(struct xorg_renderer *r,
 651                       int *pos,
 652                       int width, int height,
 653                       struct pipe_texture **textures,
 654                       int num_textures,
 655                       float *src_matrix,
 656                       float *mask_matrix)
 657 {
 658
 659 #if 0
 660    if (src_matrix) {
 661       debug_printf("src_matrix = \n");
 662       debug_printf("%f, %f, %f\n", src_matrix[0], src_matrix[1], src_matrix[2]);
 663       debug_printf("%f, %f, %f\n", src_matrix[3], src_matrix[4], src_matrix[5]);
 664       debug_printf("%f, %f, %f\n", src_matrix[6], src_matrix[7], src_matrix[8]);
 665    }
 666    if (mask_matrix) {
 667       debug_printf("mask_matrix = \n");
 668       debug_printf("%f, %f, %f\n", mask_matrix[0], mask_matrix[1], mask_matrix[2]);
 669       debug_printf("%f, %f, %f\n", mask_matrix[3], mask_matrix[4], mask_matrix[5]);
 670       debug_printf("%f, %f, %f\n", mask_matrix[6], mask_matrix[7], mask_matrix[8]);
 671    }
 672 #endif
 673
 674    switch(r->attrs_per_vertex) {
 675    case 2:
 676       renderer_draw_conditional(r, 4 * 8);
 677       add_vertex_data1(r,
 678                        pos[0], pos[1], /* src */
 679                        pos[4], pos[5], /* dst */
 680                        width, height,
 681                        textures[0], src_matrix);
 682       break;
 683    case 3:
 684       renderer_draw_conditional(r, 4 * 12);
 685       add_vertex_data2(r,
 686                        pos[0], pos[1], /* src */
 687                        pos[2], pos[3], /* mask */
 688                        pos[4], pos[5], /* dst */
 689                        width, height,
 690                        textures[0], textures[1],
 691                        src_matrix, mask_matrix);
 692       break;
 693    default:
 694       debug_assert(!"Unsupported number of textures");
 695       break;
 696    }
 697 }