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