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(const 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(const 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_near = 1;
 125     raster.depth_clip_far = 1;
 126     raster.scissor = 1;
 127     cso_set_rasterizer(r->cso, &raster);
 128
 129     /* vertex elements state */
 130     memset(&r->velems[0], 0, sizeof(r->velems[0]) * 3);
 131     for (i = 0; i < 3; i++) {
 132         r->velems[i].src_offset = i * 4 * sizeof(float);
 133         r->velems[i].instance_divisor = 0;
 134         r->velems[i].vertex_buffer_index = 0;
 135         r->velems[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
 136     }
 137 }
 138
 139 static inline void
 140 add_vertex_none(struct xa_context *r, float x, float y)
 141 {
 142     float *vertex = r->buffer + r->buffer_size;
 143
 144     vertex[0] = x;
 145     vertex[1] = y;
 146     vertex[2] = 0.f;            /*z */
 147     vertex[3] = 1.f;            /*w */
 148
 149     r->buffer_size += 4;
 150 }
 151
 152 static inline void
 153 add_vertex_1tex(struct xa_context *r, float x, float y, float s, float t)
 154 {
 155     float *vertex = r->buffer + r->buffer_size;
 156
 157     vertex[0] = x;
 158     vertex[1] = y;
 159     vertex[2] = 0.f;            /*z */
 160     vertex[3] = 1.f;            /*w */
 161
 162     vertex[4] = s;              /*s */
 163     vertex[5] = t;              /*t */
 164     vertex[6] = 0.f;            /*r */
 165     vertex[7] = 1.f;            /*q */
 166
 167     r->buffer_size += 8;
 168 }
 169
 170 static inline void
 171 add_vertex_2tex(struct xa_context *r,
 172                 float x, float y, float s0, float t0, float s1, float t1)
 173 {
 174     float *vertex = r->buffer + r->buffer_size;
 175
 176     vertex[0] = x;
 177     vertex[1] = y;
 178     vertex[2] = 0.f;            /*z */
 179     vertex[3] = 1.f;            /*w */
 180
 181     vertex[4] = s0;             /*s */
 182     vertex[5] = t0;             /*t */
 183     vertex[6] = 0.f;            /*r */
 184     vertex[7] = 1.f;            /*q */
 185
 186     vertex[8] = s1;             /*s */
 187     vertex[9] = t1;             /*t */
 188     vertex[10] = 0.f;           /*r */
 189     vertex[11] = 1.f;           /*q */
 190
 191     r->buffer_size += 12;
 192 }
 193
 194 static void
 195 compute_src_coords(float sx, float sy, const struct pipe_resource *src,
 196                    const float *src_matrix,
 197                    float width, float height,
 198                    float tc0[2], float tc1[2], float tc2[2], float tc3[2])
 199 {
 200     tc0[0] = sx;
 201     tc0[1] = sy;
 202     tc1[0] = sx + width;
 203     tc1[1] = sy;
 204     tc2[0] = sx + width;
 205     tc2[1] = sy + height;
 206     tc3[0] = sx;
 207     tc3[1] = sy + height;
 208
 209     if (src_matrix) {
 210         map_point(src_matrix, tc0[0], tc0[1], &tc0[0], &tc0[1]);
 211         map_point(src_matrix, tc1[0], tc1[1], &tc1[0], &tc1[1]);
 212         map_point(src_matrix, tc2[0], tc2[1], &tc2[0], &tc2[1]);
 213         map_point(src_matrix, tc3[0], tc3[1], &tc3[0], &tc3[1]);
 214     }
 215
 216     tc0[0] /= src->width0;
 217     tc1[0] /= src->width0;
 218     tc2[0] /= src->width0;
 219     tc3[0] /= src->width0;
 220     tc0[1] /= src->height0;
 221     tc1[1] /= src->height0;
 222     tc2[1] /= src->height0;
 223     tc3[1] /= src->height0;
 224 }
 225
 226 static void
 227 add_vertex_data1(struct xa_context *r,
 228                  float srcX, float srcY,  float dstX, float dstY,
 229                  float width, float height,
 230                  const struct pipe_resource *src, const float *src_matrix)
 231 {
 232     float tc0[2], tc1[2], tc2[2], tc3[2];
 233
 234     compute_src_coords(srcX, srcY, src, src_matrix, width, height,
 235                        tc0, tc1, tc2, tc3);
 236     /* 1st vertex */
 237     add_vertex_1tex(r, dstX, dstY, tc0[0], tc0[1]);
 238     /* 2nd vertex */
 239     add_vertex_1tex(r, dstX + width, dstY, tc1[0], tc1[1]);
 240     /* 3rd vertex */
 241     add_vertex_1tex(r, dstX + width, dstY + height, tc2[0], tc2[1]);
 242     /* 4th vertex */
 243     add_vertex_1tex(r, dstX, dstY + height, tc3[0], tc3[1]);
 244 }
 245
 246 static void
 247 add_vertex_data2(struct xa_context *r,
 248                  float srcX, float srcY, float maskX, float maskY,
 249                  float dstX, float dstY, float width, float height,
 250                  struct pipe_resource *src,
 251                  struct pipe_resource *mask,
 252                  const float *src_matrix, const float *mask_matrix)
 253 {
 254     float spt0[2], spt1[2], spt2[2], spt3[2];
 255     float mpt0[2], mpt1[2], mpt2[2], mpt3[2];
 256
 257     compute_src_coords(srcX, srcY, src, src_matrix, width, height,
 258                        spt0, spt1, spt2, spt3);
 259     compute_src_coords(maskX, maskY, mask, mask_matrix, width, height,
 260                        mpt0, mpt1, mpt2, mpt3);
 261
 262     /* 1st vertex */
 263     add_vertex_2tex(r, dstX, dstY,
 264                     spt0[0], spt0[1], mpt0[0], mpt0[1]);
 265     /* 2nd vertex */
 266     add_vertex_2tex(r, dstX + width, dstY,
 267                     spt1[0], spt1[1], mpt1[0], mpt1[1]);
 268     /* 3rd vertex */
 269     add_vertex_2tex(r, dstX + width, dstY + height,
 270                     spt2[0], spt2[1], mpt2[0], mpt2[1]);
 271     /* 4th vertex */
 272     add_vertex_2tex(r, dstX, dstY + height,
 273                     spt3[0], spt3[1], mpt3[0], mpt3[1]);
 274 }
 275
 276 static void
 277 setup_vertex_data_yuv(struct xa_context *r,
 278                       float srcX,
 279                       float srcY,
 280                       float srcW,
 281                       float srcH,
 282                       float dstX,
 283                       float dstY,
 284                       float dstW, float dstH, struct xa_surface *srf[])
 285 {
 286     float s0, t0, s1, t1;
 287     float spt0[2], spt1[2];
 288     struct pipe_resource *tex;
 289
 290     spt0[0] = srcX;
 291     spt0[1] = srcY;
 292     spt1[0] = srcX + srcW;
 293     spt1[1] = srcY + srcH;
 294
 295     tex = srf[0]->tex;
 296     s0 = spt0[0] / tex->width0;
 297     t0 = spt0[1] / tex->height0;
 298     s1 = spt1[0] / tex->width0;
 299     t1 = spt1[1] / tex->height0;
 300
 301     /* 1st vertex */
 302     add_vertex_1tex(r, dstX, dstY, s0, t0);
 303     /* 2nd vertex */
 304     add_vertex_1tex(r, dstX + dstW, dstY, s1, t0);
 305     /* 3rd vertex */
 306     add_vertex_1tex(r, dstX + dstW, dstY + dstH, s1, t1);
 307     /* 4th vertex */
 308     add_vertex_1tex(r, dstX, dstY + dstH, s0, t1);
 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
 316 renderer_bind_destination(struct xa_context *r,
 317                           struct pipe_surface *surface)
 318 {
 319     int width = surface->width;
 320     int height = surface->height;
 321
 322     struct pipe_framebuffer_state fb;
 323     struct pipe_viewport_state viewport;
 324
 325     xa_scissor_reset(r);
 326
 327     /* Framebuffer uses actual surface width/height
 328      */
 329     memset(&fb, 0, sizeof fb);
 330     fb.width = surface->width;
 331     fb.height = surface->height;
 332     fb.nr_cbufs = 1;
 333     fb.cbufs[0] = surface;
 334     fb.zsbuf = 0;
 335
 336     /* Viewport just touches the bit we're interested in:
 337      */
 338     viewport.scale[0] = width / 2.f;
 339     viewport.scale[1] = height / 2.f;
 340     viewport.scale[2] = 1.0;
 341     viewport.translate[0] = width / 2.f;
 342     viewport.translate[1] = height / 2.f;
 343     viewport.translate[2] = 0.0;
 344
 345     /* Constant buffer set up to match viewport dimensions:
 346      */
 347     if (r->fb_width != width || r->fb_height != height) {
 348         float vs_consts[8] = {
 349             2.f / width, 2.f / height, 1, 1,
 350             -1, -1, 0, 0
 351         };
 352
 353         r->fb_width = width;
 354         r->fb_height = height;
 355
 356         renderer_set_constants(r, PIPE_SHADER_VERTEX,
 357                                vs_consts, sizeof vs_consts);
 358     }
 359
 360     cso_set_framebuffer(r->cso, &fb);
 361     cso_set_viewport(r->cso, &viewport);
 362 }
 363
 364 void
 365 renderer_set_constants(struct xa_context *r,
 366                        int shader_type, const float *params, int param_bytes)
 367 {
 368     struct pipe_resource **cbuf =
 369         (shader_type == PIPE_SHADER_VERTEX) ? &r->vs_const_buffer :
 370         &r->fs_const_buffer;
 371
 372     pipe_resource_reference(cbuf, NULL);
 373     *cbuf = pipe_buffer_create_const0(r->pipe->screen,
 374                                       PIPE_BIND_CONSTANT_BUFFER,
 375                                       PIPE_USAGE_DEFAULT,
 376                                       param_bytes);
 377
 378     if (*cbuf) {
 379         pipe_buffer_write(r->pipe, *cbuf, 0, param_bytes, params);
 380     }
 381     pipe_set_constant_buffer(r->pipe, shader_type, 0, *cbuf);
 382 }
 383
 384 void
 385 renderer_copy_prepare(struct xa_context *r,
 386                       struct pipe_surface *dst_surface,
 387                       struct pipe_resource *src_texture,
 388                       const enum xa_formats src_xa_format,
 389                       const enum xa_formats dst_xa_format)
 390 {
 391     struct pipe_context *pipe = r->pipe;
 392     struct pipe_screen *screen = pipe->screen;
 393     struct xa_shader shader;
 394     uint32_t fs_traits = FS_COMPOSITE;
 395
 396     assert(screen->is_format_supported(screen, dst_surface->format,
 397                                        PIPE_TEXTURE_2D, 0, 0,
 398                                        PIPE_BIND_RENDER_TARGET));
 399     (void)screen;
 400
 401     renderer_bind_destination(r, dst_surface);
 402
 403     /* set misc state we care about */
 404     {
 405         struct pipe_blend_state blend;
 406
 407         memset(&blend, 0, sizeof(blend));
 408         blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE;
 409         blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
 410         blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
 411         blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
 412         blend.rt[0].colormask = PIPE_MASK_RGBA;
 413         cso_set_blend(r->cso, &blend);
 414     }
 415
 416     /* sampler */
 417     {
 418         struct pipe_sampler_state sampler;
 419         const struct pipe_sampler_state *p_sampler = &sampler;
 420
 421         memset(&sampler, 0, sizeof(sampler));
 422         sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 423         sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 424         sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 425         sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
 426         sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
 427         sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
 428         sampler.normalized_coords = 1;
 429         cso_set_samplers(r->cso, PIPE_SHADER_FRAGMENT, 1, &p_sampler);
 430         r->num_bound_samplers = 1;
 431     }
 432
 433     /* texture/sampler view */
 434     {
 435         struct pipe_sampler_view templ;
 436         struct pipe_sampler_view *src_view;
 437
 438         u_sampler_view_default_template(&templ,
 439                                         src_texture, src_texture->format);
 440         src_view = pipe->create_sampler_view(pipe, src_texture, &templ);
 441         cso_set_sampler_views(r->cso, PIPE_SHADER_FRAGMENT, 1, &src_view);
 442         pipe_sampler_view_reference(&src_view, NULL);
 443     }
 444
 445     /* shaders */
 446     if (src_texture->format == PIPE_FORMAT_L8_UNORM ||
 447         src_texture->format == PIPE_FORMAT_R8_UNORM)
 448         fs_traits |= FS_SRC_LUMINANCE;
 449     if (dst_surface->format == PIPE_FORMAT_L8_UNORM ||
 450         dst_surface->format == PIPE_FORMAT_R8_UNORM)
 451         fs_traits |= FS_DST_LUMINANCE;
 452     if (xa_format_a(dst_xa_format) != 0 &&
 453         xa_format_a(src_xa_format) == 0)
 454         fs_traits |= FS_SRC_SET_ALPHA;
 455
 456     shader = xa_shaders_get(r->shaders, VS_COMPOSITE, fs_traits);
 457     cso_set_vertex_shader_handle(r->cso, shader.vs);
 458     cso_set_fragment_shader_handle(r->cso, shader.fs);
 459
 460     r->buffer_size = 0;
 461     r->attrs_per_vertex = 2;
 462 }
 463
 464 void
 465 renderer_copy(struct xa_context *r,
 466               int dx,
 467               int dy,
 468               int sx,
 469               int sy,
 470               int width, int height, float src_width, float src_height)
 471 {
 472     float s0, t0, s1, t1;
 473     float x0, y0, x1, y1;
 474
 475     /* XXX: could put the texcoord scaling calculation into the vertex
 476      * shader.
 477      */
 478     s0 = sx / src_width;
 479     s1 = (sx + width) / src_width;
 480     t0 = sy / src_height;
 481     t1 = (sy + height) / src_height;
 482
 483     x0 = dx;
 484     x1 = dx + width;
 485     y0 = dy;
 486     y1 = dy + height;
 487
 488     /* draw quad */
 489     renderer_draw_conditional(r, 4 * 8);
 490     add_vertex_1tex(r, x0, y0, s0, t0);
 491     add_vertex_1tex(r, x1, y0, s1, t0);
 492     add_vertex_1tex(r, x1, y1, s1, t1);
 493     add_vertex_1tex(r, x0, y1, s0, t1);
 494 }
 495
 496 void
 497 renderer_draw_yuv(struct xa_context *r,
 498                   float src_x,
 499                   float src_y,
 500                   float src_w,
 501                   float src_h,
 502                   int dst_x,
 503                   int dst_y, int dst_w, int dst_h, struct xa_surface *srf[])
 504 {
 505    const int num_attribs = 2;   /*pos + tex coord */
 506
 507    setup_vertex_data_yuv(r,
 508                          src_x, src_y, src_w, src_h,
 509                          dst_x, dst_y, dst_w, dst_h, srf);
 510
 511    if (!r->scissor_valid) {
 512        r->scissor.minx = 0;
 513        r->scissor.miny = 0;
 514        r->scissor.maxx = r->dst->tex->width0;
 515        r->scissor.maxy = r->dst->tex->height0;
 516    }
 517
 518    r->pipe->set_scissor_states(r->pipe, 0, 1, &r->scissor);
 519
 520    cso_set_vertex_elements(r->cso, num_attribs, r->velems);
 521    util_draw_user_vertex_buffer(r->cso, r->buffer, PIPE_PRIM_QUADS,
 522                                 4,      /* verts */
 523                                 num_attribs);   /* attribs/vert */
 524    r->buffer_size = 0;
 525
 526    xa_scissor_reset(r);
 527 }
 528
 529 void
 530 renderer_begin_solid(struct xa_context *r)
 531 {
 532     r->buffer_size = 0;
 533     r->attrs_per_vertex = 1;
 534     renderer_set_constants(r, PIPE_SHADER_FRAGMENT, r->solid_color,
 535                            4 * sizeof(float));
 536 }
 537
 538 void
 539 renderer_solid(struct xa_context *r,
 540                int x0, int y0, int x1, int y1)
 541 {
 542     /*
 543      * debug_printf("solid rect[(%d, %d), (%d, %d)], rgba[%f, %f, %f, %f]\n",
 544      * x0, y0, x1, y1, color[0], color[1], color[2], color[3]); */
 545
 546     renderer_draw_conditional(r, 4 * 4);
 547
 548     /* 1st vertex */
 549     add_vertex_none(r, x0, y0);
 550     /* 2nd vertex */
 551     add_vertex_none(r, x1, y0);
 552     /* 3rd vertex */
 553     add_vertex_none(r, x1, y1);
 554     /* 4th vertex */
 555     add_vertex_none(r, x0, y1);
 556 }
 557
 558 void
 559 renderer_draw_flush(struct xa_context *r)
 560 {
 561     renderer_draw_conditional(r, 0);
 562 }
 563
 564 void
 565 renderer_begin_textures(struct xa_context *r)
 566 {
 567     r->attrs_per_vertex = 1 + r->num_bound_samplers;
 568     r->buffer_size = 0;
 569     if (r->has_solid_src || r->has_solid_mask)
 570        renderer_set_constants(r, PIPE_SHADER_FRAGMENT, r->solid_color,
 571                               4 * sizeof(float));
 572 }
 573
 574 void
 575 renderer_texture(struct xa_context *r,
 576                  int *pos,
 577                  int width, int height,
 578                  const float *src_matrix,
 579                  const float *mask_matrix)
 580 {
 581     struct pipe_sampler_view **sampler_view = r->bound_sampler_views;
 582
 583 #if 0
 584     if (src_matrix) {
 585         debug_printf("src_matrix = \n");
 586         debug_printf("%f, %f, %f\n", src_matrix[0], src_matrix[1], src_matrix[2]);
 587         debug_printf("%f, %f, %f\n", src_matrix[3], src_matrix[4], src_matrix[5]);
 588         debug_printf("%f, %f, %f\n", src_matrix[6], src_matrix[7], src_matrix[8]);
 589     }
 590     if (mask_matrix) {
 591         debug_printf("mask_matrix = \n");
 592         debug_printf("%f, %f, %f\n", mask_matrix[0], mask_matrix[1], mask_matrix[2]);
 593         debug_printf("%f, %f, %f\n", mask_matrix[3], mask_matrix[4], mask_matrix[5]);
 594         debug_printf("%f, %f, %f\n", mask_matrix[6], mask_matrix[7], mask_matrix[8]);
 595     }
 596 #endif
 597
 598     switch(r->attrs_per_vertex) {
 599     case 2:
 600         renderer_draw_conditional(r, 4 * 8);
 601         if (!r->has_solid_src) {
 602            add_vertex_data1(r,
 603                             pos[0], pos[1], /* src */
 604                             pos[4], pos[5], /* dst */
 605                             width, height,
 606                             sampler_view[0]->texture, src_matrix);
 607         } else {
 608            add_vertex_data1(r,
 609                             pos[2], pos[3], /* mask */
 610                             pos[4], pos[5], /* dst */
 611                             width, height,
 612                             sampler_view[0]->texture, mask_matrix);
 613         }
 614         break;
 615     case 3:
 616         renderer_draw_conditional(r, 4 * 12);
 617         add_vertex_data2(r,
 618                          pos[0], pos[1], /* src */
 619                          pos[2], pos[3], /* mask */
 620                          pos[4], pos[5], /* dst */
 621                          width, height,
 622                          sampler_view[0]->texture, sampler_view[1]->texture,
 623                          src_matrix, mask_matrix);
 624         break;
 625     default:
 626         break;
 627     }
 628 }