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