src/gallium/state_trackers/xa/xa_renderer.c

   1 /**********************************************************
   2  * Copyright 2009-2011 VMware, Inc. All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  *********************************************************
  25  * Authors:
  26  * Zack Rusin <zackr-at-vmware-dot-com>
  27  */
  28
  29 #include "xa_context.h"
  30 #include "xa_priv.h"
  31 #include <math.h>
  32 #include "cso_cache/cso_context.h"
  33 #include "util/u_inlines.h"
  34 #include "util/u_sampler.h"
  35 #include "util/u_draw_quad.h"
  36
  37 #define floatsEqual(x, y) (fabs(x - y) <= 0.00001f * MIN2(fabs(x), fabs(y)))
  38 #define floatIsZero(x) (floatsEqual((x) + 1, 1))
  39
  40 #define NUM_COMPONENTS 4
  41
  42 void
  43
  44
  45 renderer_set_constants(struct xa_context *r,
  46                        int shader_type, const float *params, int param_bytes);
  47
  48 static INLINE boolean
  49 is_affine(float *matrix)
  50 {
  51     return floatIsZero(matrix[2]) && floatIsZero(matrix[5])
  52         && floatsEqual(matrix[8], 1);
  53 }
  54
  55 static INLINE void
  56 map_point(float *mat, float x, float y, float *out_x, float *out_y)
  57 {
  58     if (!mat) {
  59         *out_x = x;
  60         *out_y = y;
  61         return;
  62     }
  63
  64     *out_x = mat[0] * x + mat[3] * y + mat[6];
  65     *out_y = mat[1] * x + mat[4] * y + mat[7];
  66     if (!is_affine(mat)) {
  67         float w = 1 / (mat[2] * x + mat[5] * y + mat[8]);
  68
  69         *out_x *= w;
  70         *out_y *= w;
  71     }
  72 }
  73
  74 static INLINE void
  75 renderer_draw(struct xa_context *r)
  76 {
  77     int num_verts = r->buffer_size / (r->attrs_per_vertex * NUM_COMPONENTS);
  78
  79     if (!r->buffer_size)
  80         return;
  81
  82     if (!r->scissor_valid) {
  83         r->scissor.minx = 0;
  84         r->scissor.miny = 0;
  85         r->scissor.maxx = r->dst->tex->width0;
  86         r->scissor.maxy = r->dst->tex->height0;
  87     }
  88
  89     r->pipe->set_scissor_states(r->pipe, 0, 1, &r->scissor);
  90
  91     cso_set_vertex_elements(r->cso, r->attrs_per_vertex, r->velems);
  92     util_draw_user_vertex_buffer(r->cso, r->buffer, PIPE_PRIM_QUADS,
  93                                  num_verts,     /* verts */
  94                                  r->attrs_per_vertex);  /* attribs/vert */
  95     r->buffer_size = 0;
  96
  97     xa_scissor_reset(r);
  98 }
  99
 100 static INLINE void
 101 renderer_draw_conditional(struct xa_context *r, int next_batch)
 102 {
 103     if (r->buffer_size + next_batch >= XA_VB_SIZE ||
 104         (next_batch == 0 && r->buffer_size)) {
 105         renderer_draw(r);
 106     }
 107 }
 108
 109 void
 110 renderer_init_state(struct xa_context *r)
 111 {
 112     struct pipe_depth_stencil_alpha_state dsa;
 113     struct pipe_rasterizer_state raster;
 114     unsigned i;
 115
 116     /* set common initial clip state */
 117     memset(&dsa, 0, sizeof(struct pipe_depth_stencil_alpha_state));
 118     cso_set_depth_stencil_alpha(r->cso, &dsa);
 119
 120     /* XXX: move to renderer_init_state? */
 121     memset(&raster, 0, sizeof(struct pipe_rasterizer_state));
 122     raster.half_pixel_center = 1;
 123     raster.bottom_edge_rule = 1;
 124     raster.depth_clip = 1;
 125     raster.scissor = 1;
 126     cso_set_rasterizer(r->cso, &raster);
 127
 128     /* vertex elements state */
 129     memset(&r->velems[0], 0, sizeof(r->velems[0]) * 3);
 130     for (i = 0; i < 3; i++) {
 131         r->velems[i].src_offset = i * 4 * sizeof(float);
 132         r->velems[i].instance_divisor = 0;
 133         r->velems[i].vertex_buffer_index = 0;
 134         r->velems[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
 135     }
 136 }
 137
 138 static INLINE void
 139 add_vertex_color(struct xa_context *r, float x, float y, float color[4])
 140 {
 141     float *vertex = r->buffer + r->buffer_size;
 142
 143     vertex[0] = x;
 144     vertex[1] = y;
 145     vertex[2] = 0.f;            /*z */
 146     vertex[3] = 1.f;            /*w */
 147
 148     vertex[4] = color[0];       /*r */
 149     vertex[5] = color[1];       /*g */
 150     vertex[6] = color[2];       /*b */
 151     vertex[7] = color[3];       /*a */
 152
 153     r->buffer_size += 8;
 154 }
 155
 156 static INLINE void
 157 add_vertex_1tex(struct xa_context *r, float x, float y, float s, float t)
 158 {
 159     float *vertex = r->buffer + r->buffer_size;
 160
 161     vertex[0] = x;
 162     vertex[1] = y;
 163     vertex[2] = 0.f;            /*z */
 164     vertex[3] = 1.f;            /*w */
 165
 166     vertex[4] = s;              /*s */
 167     vertex[5] = t;              /*t */
 168     vertex[6] = 0.f;            /*r */
 169     vertex[7] = 1.f;            /*q */
 170
 171     r->buffer_size += 8;
 172 }
 173
 174 static INLINE void
 175 add_vertex_2tex(struct xa_context *r,
 176                 float x, float y, float s0, float t0, float s1, float t1)
 177 {
 178     float *vertex = r->buffer + r->buffer_size;
 179
 180     vertex[0] = x;
 181     vertex[1] = y;
 182     vertex[2] = 0.f;            /*z */
 183     vertex[3] = 1.f;            /*w */
 184
 185     vertex[4] = s0;             /*s */
 186     vertex[5] = t0;             /*t */
 187     vertex[6] = 0.f;            /*r */
 188     vertex[7] = 1.f;            /*q */
 189
 190     vertex[8] = s1;             /*s */
 191     vertex[9] = t1;             /*t */
 192     vertex[10] = 0.f;           /*r */
 193     vertex[11] = 1.f;           /*q */
 194
 195     r->buffer_size += 12;
 196 }
 197
 198 static void
 199 add_vertex_data1(struct xa_context *r,
 200                  float srcX, float srcY,  float dstX, float dstY,
 201                  float width, float height,
 202                  struct pipe_resource *src, const float *src_matrix)
 203 {
 204     float s0, t0, s1, t1, s2, t2, s3, t3;
 205     float pt0[2], pt1[2], pt2[2], pt3[2];
 206
 207     pt0[0] = srcX;
 208     pt0[1] = srcY;
 209     pt1[0] = (srcX + width);
 210     pt1[1] = srcY;
 211     pt2[0] = (srcX + width);
 212     pt2[1] = (srcY + height);
 213     pt3[0] = srcX;
 214     pt3[1] = (srcY + height);
 215
 216     if (src_matrix) {
 217         map_point((float *)src_matrix, pt0[0], pt0[1], &pt0[0], &pt0[1]);
 218         map_point((float *)src_matrix, pt1[0], pt1[1], &pt1[0], &pt1[1]);
 219         map_point((float *)src_matrix, pt2[0], pt2[1], &pt2[0], &pt2[1]);
 220         map_point((float *)src_matrix, pt3[0], pt3[1], &pt3[0], &pt3[1]);
 221     }
 222
 223     s0 =  pt0[0] / src->width0;
 224     s1 =  pt1[0] / src->width0;
 225     s2 =  pt2[0] / src->width0;
 226     s3 =  pt3[0] / src->width0;
 227     t0 =  pt0[1] / src->height0;
 228     t1 =  pt1[1] / src->height0;
 229     t2 =  pt2[1] / src->height0;
 230     t3 =  pt3[1] / src->height0;
 231
 232     /* 1st vertex */
 233     add_vertex_1tex(r, dstX, dstY, s0, t0);
 234     /* 2nd vertex */
 235     add_vertex_1tex(r, dstX + width, dstY, s1, t1);
 236     /* 3rd vertex */
 237     add_vertex_1tex(r, dstX + width, dstY + height, s2, t2);
 238     /* 4th vertex */
 239     add_vertex_1tex(r, dstX, dstY + height, s3, t3);
 240 }
 241
 242 static void
 243 add_vertex_data2(struct xa_context *r,
 244                  float srcX, float srcY, float maskX, float maskY,
 245                  float dstX, float dstY, float width, float height,
 246                  struct pipe_resource *src,
 247                  struct pipe_resource *mask,
 248                  const float *src_matrix, const float *mask_matrix)
 249 {
 250     float src_s0, src_t0, src_s1, src_t1;
 251     float mask_s0, mask_t0, mask_s1, mask_t1;
 252     float spt0[2], spt1[2];
 253     float mpt0[2], mpt1[2];
 254
 255     spt0[0] = srcX;
 256     spt0[1] = srcY;
 257     spt1[0] = srcX + width;
 258     spt1[1] = srcY + height;
 259
 260     mpt0[0] = maskX;
 261     mpt0[1] = maskY;
 262     mpt1[0] = maskX + width;
 263     mpt1[1] = maskY + height;
 264
 265     if (src_matrix) {
 266         map_point((float *)src_matrix, spt0[0], spt0[1], &spt0[0], &spt0[1]);
 267         map_point((float *)src_matrix, spt1[0], spt1[1], &spt1[0], &spt1[1]);
 268     }
 269
 270     if (mask_matrix) {
 271         map_point((float *)mask_matrix, mpt0[0], mpt0[1], &mpt0[0], &mpt0[1]);
 272         map_point((float *)mask_matrix, mpt1[0], mpt1[1], &mpt1[0], &mpt1[1]);
 273     }
 274
 275     src_s0 = spt0[0] / src->width0;
 276     src_t0 = spt0[1] / src->height0;
 277     src_s1 = spt1[0] / src->width0;
 278     src_t1 = spt1[1] / src->height0;
 279
 280     mask_s0 = mpt0[0] / mask->width0;
 281     mask_t0 = mpt0[1] / mask->height0;
 282     mask_s1 = mpt1[0] / mask->width0;
 283     mask_t1 = mpt1[1] / mask->height0;
 284
 285     /* 1st vertex */
 286     add_vertex_2tex(r, dstX, dstY,
 287                     src_s0, src_t0, mask_s0, mask_t0);
 288     /* 2nd vertex */
 289     add_vertex_2tex(r, dstX + width, dstY,
 290                     src_s1, src_t0, mask_s1, mask_t0);
 291     /* 3rd vertex */
 292     add_vertex_2tex(r, dstX + width, dstY + height,
 293                     src_s1, src_t1, mask_s1, mask_t1);
 294     /* 4th vertex */
 295     add_vertex_2tex(r, dstX, dstY + height,
 296                     src_s0, src_t1, mask_s0, mask_t1);
 297 }
 298
 299 static void
 300 setup_vertex_data_yuv(struct xa_context *r,
 301                       float srcX,
 302                       float srcY,
 303                       float srcW,
 304                       float srcH,
 305                       float dstX,
 306                       float dstY,
 307                       float dstW, float dstH, struct xa_surface *srf[])
 308 {
 309     float s0, t0, s1, t1;
 310     float spt0[2], spt1[2];
 311     struct pipe_resource *tex;
 312
 313     spt0[0] = srcX;
 314     spt0[1] = srcY;
 315     spt1[0] = srcX + srcW;
 316     spt1[1] = srcY + srcH;
 317
 318     tex = srf[0]->tex;
 319     s0 = spt0[0] / tex->width0;
 320     t0 = spt0[1] / tex->height0;
 321     s1 = spt1[0] / tex->width0;
 322     t1 = spt1[1] / tex->height0;
 323
 324     /* 1st vertex */
 325     add_vertex_1tex(r, dstX, dstY, s0, t0);
 326     /* 2nd vertex */
 327     add_vertex_1tex(r, dstX + dstW, dstY, s1, t0);
 328     /* 3rd vertex */
 329     add_vertex_1tex(r, dstX + dstW, dstY + dstH, s1, t1);
 330     /* 4th vertex */
 331     add_vertex_1tex(r, dstX, dstY + dstH, s0, t1);
 332 }
 333
 334 /* Set up framebuffer, viewport and vertex shader constant buffer
 335  * state for a particular destinaton surface.  In all our rendering,
 336  * these concepts are linked.
 337  */
 338 void
 339 renderer_bind_destination(struct xa_context *r,
 340                           struct pipe_surface *surface)
 341 {
 342     int width = surface->width;
 343     int height = surface->height;
 344
 345     struct pipe_framebuffer_state fb;
 346     struct pipe_viewport_state viewport;
 347
 348     xa_scissor_reset(r);
 349
 350     /* Framebuffer uses actual surface width/height
 351      */
 352     memset(&fb, 0, sizeof fb);
 353     fb.width = surface->width;
 354     fb.height = surface->height;
 355     fb.nr_cbufs = 1;
 356     fb.cbufs[0] = surface;
 357     fb.zsbuf = 0;
 358
 359     /* Viewport just touches the bit we're interested in:
 360      */
 361     viewport.scale[0] = width / 2.f;
 362     viewport.scale[1] = height / 2.f;
 363     viewport.scale[2] = 1.0;
 364     viewport.translate[0] = width / 2.f;
 365     viewport.translate[1] = height / 2.f;
 366     viewport.translate[2] = 0.0;
 367
 368     /* Constant buffer set up to match viewport dimensions:
 369      */
 370     if (r->fb_width != width || r->fb_height != height) {
 371         float vs_consts[8] = {
 372             2.f / width, 2.f / height, 1, 1,
 373             -1, -1, 0, 0
 374         };
 375
 376         r->fb_width = width;
 377         r->fb_height = height;
 378
 379         renderer_set_constants(r, PIPE_SHADER_VERTEX,
 380                                vs_consts, sizeof vs_consts);
 381     }
 382
 383     cso_set_framebuffer(r->cso, &fb);
 384     cso_set_viewport(r->cso, &viewport);
 385 }
 386
 387 void
 388 renderer_set_constants(struct xa_context *r,
 389                        int shader_type, const float *params, int param_bytes)
 390 {
 391     struct pipe_resource **cbuf =
 392         (shader_type == PIPE_SHADER_VERTEX) ? &r->vs_const_buffer :
 393         &r->fs_const_buffer;
 394
 395     pipe_resource_reference(cbuf, NULL);
 396     *cbuf = pipe_buffer_create(r->pipe->screen,
 397                                PIPE_BIND_CONSTANT_BUFFER, PIPE_USAGE_DEFAULT,
 398                                param_bytes);
 399
 400     if (*cbuf) {
 401         pipe_buffer_write(r->pipe, *cbuf, 0, param_bytes, params);
 402     }
 403     pipe_set_constant_buffer(r->pipe, shader_type, 0, *cbuf);
 404 }
 405
 406 void
 407 renderer_copy_prepare(struct xa_context *r,
 408                       struct pipe_surface *dst_surface,
 409                       struct pipe_resource *src_texture,
 410                       const enum xa_formats src_xa_format,
 411                       const enum xa_formats dst_xa_format)
 412 {
 413     struct pipe_context *pipe = r->pipe;
 414     struct pipe_screen *screen = pipe->screen;
 415     struct xa_shader shader;
 416     uint32_t fs_traits = FS_COMPOSITE;
 417
 418     assert(screen->is_format_supported(screen, dst_surface->format,
 419                                        PIPE_TEXTURE_2D, 0,
 420                                        PIPE_BIND_RENDER_TARGET));
 421     (void)screen;
 422
 423     renderer_bind_destination(r, dst_surface);
 424
 425     /* set misc state we care about */
 426     {
 427         struct pipe_blend_state blend;
 428
 429         memset(&blend, 0, sizeof(blend));
 430         blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE;
 431         blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
 432         blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
 433         blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
 434         blend.rt[0].colormask = PIPE_MASK_RGBA;
 435         cso_set_blend(r->cso, &blend);
 436     }
 437
 438     /* sampler */
 439     {
 440         struct pipe_sampler_state sampler;
 441         const struct pipe_sampler_state *p_sampler = &sampler;
 442
 443         memset(&sampler, 0, sizeof(sampler));
 444         sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 445         sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 446         sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 447         sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
 448         sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
 449         sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
 450         sampler.normalized_coords = 1;
 451         cso_set_samplers(r->cso, PIPE_SHADER_FRAGMENT, 1, &p_sampler);
 452         r->num_bound_samplers = 1;
 453     }
 454
 455     /* texture/sampler view */
 456     {
 457         struct pipe_sampler_view templ;
 458         struct pipe_sampler_view *src_view;
 459
 460         u_sampler_view_default_template(&templ,
 461                                         src_texture, src_texture->format);
 462         src_view = pipe->create_sampler_view(pipe, src_texture, &templ);
 463         cso_set_sampler_views(r->cso, PIPE_SHADER_FRAGMENT, 1, &src_view);
 464         pipe_sampler_view_reference(&src_view, NULL);
 465     }
 466
 467     /* shaders */
 468     if (src_texture->format == PIPE_FORMAT_L8_UNORM)
 469         fs_traits |= FS_SRC_LUMINANCE;
 470     if (dst_surface->format == PIPE_FORMAT_L8_UNORM)
 471         fs_traits |= FS_DST_LUMINANCE;
 472     if (xa_format_a(dst_xa_format) != 0 &&
 473         xa_format_a(src_xa_format) == 0)
 474         fs_traits |= FS_SRC_SET_ALPHA;
 475
 476     shader = xa_shaders_get(r->shaders, VS_COMPOSITE, fs_traits);
 477     cso_set_vertex_shader_handle(r->cso, shader.vs);
 478     cso_set_fragment_shader_handle(r->cso, shader.fs);
 479
 480     r->buffer_size = 0;
 481     r->attrs_per_vertex = 2;
 482 }
 483
 484 void
 485 renderer_copy(struct xa_context *r,
 486               int dx,
 487               int dy,
 488               int sx,
 489               int sy,
 490               int width, int height, float src_width, float src_height)
 491 {
 492     float s0, t0, s1, t1;
 493     float x0, y0, x1, y1;
 494
 495     /* XXX: could put the texcoord scaling calculation into the vertex
 496      * shader.
 497      */
 498     s0 = sx / src_width;
 499     s1 = (sx + width) / src_width;
 500     t0 = sy / src_height;
 501     t1 = (sy + height) / src_height;
 502
 503     x0 = dx;
 504     x1 = dx + width;
 505     y0 = dy;
 506     y1 = dy + height;
 507
 508     /* draw quad */
 509     renderer_draw_conditional(r, 4 * 8);
 510     add_vertex_1tex(r, x0, y0, s0, t0);
 511     add_vertex_1tex(r, x1, y0, s1, t0);
 512     add_vertex_1tex(r, x1, y1, s1, t1);
 513     add_vertex_1tex(r, x0, y1, s0, t1);
 514 }
 515
 516 void
 517 renderer_draw_yuv(struct xa_context *r,
 518                   float src_x,
 519                   float src_y,
 520                   float src_w,
 521                   float src_h,
 522                   int dst_x,
 523                   int dst_y, int dst_w, int dst_h, struct xa_surface *srf[])
 524 {
 525    const int num_attribs = 2;   /*pos + tex coord */
 526
 527    setup_vertex_data_yuv(r,
 528                          src_x, src_y, src_w, src_h,
 529                          dst_x, dst_y, dst_w, dst_h, srf);
 530
 531    if (!r->scissor_valid) {
 532        r->scissor.minx = 0;
 533        r->scissor.miny = 0;
 534        r->scissor.maxx = r->dst->tex->width0;
 535        r->scissor.maxy = r->dst->tex->height0;
 536    }
 537
 538    r->pipe->set_scissor_states(r->pipe, 0, 1, &r->scissor);
 539
 540    cso_set_vertex_elements(r->cso, num_attribs, r->velems);
 541    util_draw_user_vertex_buffer(r->cso, r->buffer, PIPE_PRIM_QUADS,
 542                                 4,      /* verts */
 543                                 num_attribs);   /* attribs/vert */
 544    r->buffer_size = 0;
 545
 546    xa_scissor_reset(r);
 547 }
 548
 549 void
 550 renderer_begin_solid(struct xa_context *r)
 551 {
 552     r->buffer_size = 0;
 553     r->attrs_per_vertex = 2;
 554 }
 555
 556 void
 557 renderer_solid(struct xa_context *r,
 558                int x0, int y0, int x1, int y1, float *color)
 559 {
 560     /*
 561      * debug_printf("solid rect[(%d, %d), (%d, %d)], rgba[%f, %f, %f, %f]\n",
 562      * x0, y0, x1, y1, color[0], color[1], color[2], color[3]); */
 563
 564     renderer_draw_conditional(r, 4 * 8);
 565
 566     /* 1st vertex */
 567     add_vertex_color(r, x0, y0, color);
 568     /* 2nd vertex */
 569     add_vertex_color(r, x1, y0, color);
 570     /* 3rd vertex */
 571     add_vertex_color(r, x1, y1, color);
 572     /* 4th vertex */
 573     add_vertex_color(r, x0, y1, color);
 574 }
 575
 576 void
 577 renderer_draw_flush(struct xa_context *r)
 578 {
 579     renderer_draw_conditional(r, 0);
 580 }
 581
 582 void
 583 renderer_begin_textures(struct xa_context *r)
 584 {
 585     r->attrs_per_vertex = 1 + r->num_bound_samplers;
 586     r->buffer_size = 0;
 587 }
 588
 589 void
 590 renderer_texture(struct xa_context *r,
 591                  int *pos,
 592                  int width, int height,
 593                  const float *src_matrix,
 594                  const float *mask_matrix)
 595 {
 596     struct pipe_sampler_view **sampler_view = r->bound_sampler_views;
 597
 598 #if 0
 599     if (src_matrix) {
 600         debug_printf("src_matrix = \n");
 601         debug_printf("%f, %f, %f\n", src_matrix[0], src_matrix[1], src_matrix[2]);
 602         debug_printf("%f, %f, %f\n", src_matrix[3], src_matrix[4], src_matrix[5]);
 603         debug_printf("%f, %f, %f\n", src_matrix[6], src_matrix[7], src_matrix[8]);
 604     }
 605     if (mask_matrix) {
 606         debug_printf("mask_matrix = \n");
 607         debug_printf("%f, %f, %f\n", mask_matrix[0], mask_matrix[1], mask_matrix[2]);
 608         debug_printf("%f, %f, %f\n", mask_matrix[3], mask_matrix[4], mask_matrix[5]);
 609         debug_printf("%f, %f, %f\n", mask_matrix[6], mask_matrix[7], mask_matrix[8]);
 610     }
 611 #endif
 612
 613     switch(r->attrs_per_vertex) {
 614     case 2:
 615         renderer_draw_conditional(r, 4 * 8);
 616         add_vertex_data1(r,
 617                          pos[0], pos[1], /* src */
 618                          pos[4], pos[5], /* dst */
 619                          width, height,
 620                          sampler_view[0]->texture, src_matrix);
 621         break;
 622     case 3:
 623         renderer_draw_conditional(r, 4 * 12);
 624         add_vertex_data2(r,
 625                          pos[0], pos[1], /* src */
 626                          pos[2], pos[3], /* mask */
 627                          pos[4], pos[5], /* dst */
 628                          width, height,
 629                          sampler_view[0]->texture, sampler_view[1]->texture,
 630                          src_matrix, mask_matrix);
 631         break;
 632     default:
 633         break;
 634     }
 635 }