src/gallium/drivers/vc5/vc5_draw.c

   1 /*
   2  * Copyright © 2014-2017 Broadcom
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #include "util/u_blitter.h"
  25 #include "util/u_prim.h"
  26 #include "util/u_format.h"
  27 #include "util/u_pack_color.h"
  28 #include "util/u_prim_restart.h"
  29 #include "util/u_upload_mgr.h"
  30 #include "indices/u_primconvert.h"
  31
  32 #include "vc5_context.h"
  33 #include "vc5_resource.h"
  34 #include "vc5_cl.h"
  35 #include "broadcom/cle/v3d_packet_v33_pack.h"
  36 #include "broadcom/compiler/v3d_compiler.h"
  37
  38 /**
  39  * Does the initial bining command list setup for drawing to a given FBO.
  40  */
  41 static void
  42 vc5_start_draw(struct vc5_context *vc5)
  43 {
  44         struct vc5_job *job = vc5->job;
  45
  46         if (job->needs_flush)
  47                 return;
  48
  49         /* Get space to emit our BCL state, using a branch to jump to a new BO
  50          * if necessary.
  51          */
  52         vc5_cl_ensure_space_with_branch(&job->bcl, 256 /* XXX */);
  53
  54         job->submit.bcl_start = job->bcl.bo->offset;
  55         vc5_job_add_bo(job, job->bcl.bo);
  56
  57         job->tile_alloc = vc5_bo_alloc(vc5->screen, 1024 * 1024, "tile alloc");
  58         struct vc5_bo *tsda = vc5_bo_alloc(vc5->screen,
  59                                            job->draw_tiles_y *
  60                                            job->draw_tiles_x *
  61                                            64,
  62                                            "TSDA");
  63
  64         /* "Binning mode lists start with a Tile Binning Mode Configuration
  65          * item (120)"
  66          *
  67          * Part1 signals the end of binning config setup.
  68          */
  69         cl_emit(&job->bcl, TILE_BINNING_MODE_CONFIGURATION_PART2, config) {
  70                 config.tile_allocation_memory_address =
  71                         cl_address(job->tile_alloc, 0);
  72                 config.tile_allocation_memory_size = job->tile_alloc->size;
  73         }
  74
  75         cl_emit(&job->bcl, TILE_BINNING_MODE_CONFIGURATION_PART1, config) {
  76                 config.tile_state_data_array_base_address =
  77                         cl_address(tsda, 0);
  78
  79                 config.width_in_tiles = job->draw_tiles_x;
  80                 config.height_in_tiles = job->draw_tiles_y;
  81
  82                 /* Must be >= 1 */
  83                 config.number_of_render_targets = 1;
  84
  85                 config.multisample_mode_4x = job->msaa;
  86
  87                 config.maximum_bpp_of_all_render_targets = job->internal_bpp;
  88         }
  89
  90         vc5_bo_unreference(&tsda);
  91
  92         /* There's definitely nothing in the VCD cache we want. */
  93         cl_emit(&job->bcl, FLUSH_VCD_CACHE, bin);
  94
  95         /* "Binning mode lists must have a Start Tile Binning item (6) after
  96          *  any prefix state data before the binning list proper starts."
  97          */
  98         cl_emit(&job->bcl, START_TILE_BINNING, bin);
  99
 100         cl_emit(&job->bcl, PRIMITIVE_LIST_FORMAT, fmt) {
 101                 fmt.data_type = LIST_INDEXED;
 102                 fmt.primitive_type = LIST_TRIANGLES;
 103         }
 104
 105         job->needs_flush = true;
 106         job->draw_width = vc5->framebuffer.width;
 107         job->draw_height = vc5->framebuffer.height;
 108 }
 109
 110 static void
 111 vc5_predraw_check_textures(struct pipe_context *pctx,
 112                            struct vc5_texture_stateobj *stage_tex)
 113 {
 114         struct vc5_context *vc5 = vc5_context(pctx);
 115
 116         for (int i = 0; i < stage_tex->num_textures; i++) {
 117                 struct pipe_sampler_view *view = stage_tex->textures[i];
 118                 if (!view)
 119                         continue;
 120
 121                 vc5_flush_jobs_writing_resource(vc5, view->texture);
 122         }
 123 }
 124
 125 static struct vc5_cl_reloc
 126 vc5_get_default_values(struct vc5_context *vc5)
 127 {
 128         struct vc5_job *job = vc5->job;
 129
 130         /* VC5_DIRTY_VTXSTATE */
 131         struct vc5_vertex_stateobj *vtx = vc5->vtx;
 132
 133         /* Set up the default values for attributes. */
 134         vc5_cl_ensure_space(&job->indirect, 4 * 4 * vtx->num_elements, 4);
 135         struct vc5_cl_reloc default_values =
 136                 cl_address(job->indirect.bo, cl_offset(&job->indirect));
 137         vc5_bo_reference(default_values.bo);
 138
 139         struct vc5_cl_out *defaults = cl_start(&job->indirect);
 140         for (int i = 0; i < vtx->num_elements; i++) {
 141                 cl_aligned_f(&defaults, 0.0);
 142                 cl_aligned_f(&defaults, 0.0);
 143                 cl_aligned_f(&defaults, 0.0);
 144                 cl_aligned_f(&defaults, 1.0);
 145         }
 146         cl_end(&job->indirect, defaults);
 147
 148         return default_values;
 149 }
 150
 151 static void
 152 vc5_emit_gl_shader_state(struct vc5_context *vc5,
 153                          const struct pipe_draw_info *info)
 154 {
 155         struct vc5_job *job = vc5->job;
 156         /* VC5_DIRTY_VTXSTATE */
 157         struct vc5_vertex_stateobj *vtx = vc5->vtx;
 158         /* VC5_DIRTY_VTXBUF */
 159         struct vc5_vertexbuf_stateobj *vertexbuf = &vc5->vertexbuf;
 160
 161         /* Upload the uniforms to the indirect CL first */
 162         struct vc5_cl_reloc fs_uniforms =
 163                 vc5_write_uniforms(vc5, vc5->prog.fs,
 164                                    &vc5->constbuf[PIPE_SHADER_FRAGMENT],
 165                                    &vc5->fragtex);
 166         struct vc5_cl_reloc vs_uniforms =
 167                 vc5_write_uniforms(vc5, vc5->prog.vs,
 168                                    &vc5->constbuf[PIPE_SHADER_VERTEX],
 169                                    &vc5->verttex);
 170         struct vc5_cl_reloc cs_uniforms =
 171                 vc5_write_uniforms(vc5, vc5->prog.cs,
 172                                    &vc5->constbuf[PIPE_SHADER_VERTEX],
 173                                    &vc5->verttex);
 174         struct vc5_cl_reloc default_values = vc5_get_default_values(vc5);
 175
 176         uint32_t shader_rec_offset =
 177                 vc5_cl_ensure_space(&job->indirect,
 178                                     cl_packet_length(GL_SHADER_STATE_RECORD) +
 179                                     vtx->num_elements *
 180                                     cl_packet_length(GL_SHADER_STATE_ATTRIBUTE_RECORD),
 181                                     32);
 182
 183         cl_emit(&job->indirect, GL_SHADER_STATE_RECORD, shader) {
 184                 shader.enable_clipping = true;
 185                 /* VC5_DIRTY_PRIM_MODE | VC5_DIRTY_RASTERIZER */
 186                 shader.point_size_in_shaded_vertex_data =
 187                         (info->mode == PIPE_PRIM_POINTS &&
 188                          vc5->rasterizer->base.point_size_per_vertex);
 189
 190                 /* Must be set if the shader modifies Z, discards, or modifies
 191                  * the sample mask.  For any of these cases, the fragment
 192                  * shader needs to write the Z value (even just discards).
 193                  */
 194                 shader.fragment_shader_does_z_writes =
 195                         (vc5->prog.fs->prog_data.fs->writes_z ||
 196                          vc5->prog.fs->prog_data.fs->discard);
 197
 198                 shader.number_of_varyings_in_fragment_shader =
 199                         vc5->prog.fs->prog_data.base->num_inputs;
 200
 201                 shader.propagate_nans = true;
 202
 203                 shader.coordinate_shader_code_address =
 204                         cl_address(vc5->prog.cs->bo, 0);
 205                 shader.vertex_shader_code_address =
 206                         cl_address(vc5->prog.vs->bo, 0);
 207                 shader.fragment_shader_code_address =
 208                         cl_address(vc5->prog.fs->bo, 0);
 209
 210                 /* XXX: Use combined input/output size flag in the common
 211                  * case.
 212                  */
 213                 shader.coordinate_shader_has_separate_input_and_output_vpm_blocks = true;
 214                 shader.vertex_shader_has_separate_input_and_output_vpm_blocks = true;
 215                 shader.coordinate_shader_input_vpm_segment_size =
 216                         vc5->prog.cs->prog_data.vs->vpm_input_size;
 217                 shader.vertex_shader_input_vpm_segment_size =
 218                         vc5->prog.vs->prog_data.vs->vpm_input_size;
 219
 220                 shader.coordinate_shader_output_vpm_segment_size =
 221                         vc5->prog.cs->prog_data.vs->vpm_output_size;
 222                 shader.vertex_shader_output_vpm_segment_size =
 223                         vc5->prog.vs->prog_data.vs->vpm_output_size;
 224
 225                 shader.coordinate_shader_uniforms_address = cs_uniforms;
 226                 shader.vertex_shader_uniforms_address = vs_uniforms;
 227                 shader.fragment_shader_uniforms_address = fs_uniforms;
 228
 229                 shader.vertex_id_read_by_coordinate_shader =
 230                         vc5->prog.cs->prog_data.vs->uses_vid;
 231                 shader.instance_id_read_by_coordinate_shader =
 232                         vc5->prog.cs->prog_data.vs->uses_iid;
 233                 shader.vertex_id_read_by_vertex_shader =
 234                         vc5->prog.vs->prog_data.vs->uses_vid;
 235                 shader.instance_id_read_by_vertex_shader =
 236                         vc5->prog.vs->prog_data.vs->uses_iid;
 237
 238                 shader.address_of_default_attribute_values = default_values;
 239         }
 240
 241         for (int i = 0; i < vtx->num_elements; i++) {
 242                 struct pipe_vertex_element *elem = &vtx->pipe[i];
 243                 struct pipe_vertex_buffer *vb =
 244                         &vertexbuf->vb[elem->vertex_buffer_index];
 245                 struct vc5_resource *rsc = vc5_resource(vb->buffer.resource);
 246                 const struct util_format_description *desc =
 247                         util_format_description(elem->src_format);
 248
 249                 uint32_t offset = vb->buffer_offset + elem->src_offset;
 250
 251                 cl_emit(&job->indirect, GL_SHADER_STATE_ATTRIBUTE_RECORD, attr) {
 252                         uint32_t r_size = desc->channel[0].size;
 253
 254                         /* vec_size == 0 means 4 */
 255                         attr.vec_size = desc->nr_channels & 3;
 256
 257                         switch (desc->channel[0].type) {
 258                         case UTIL_FORMAT_TYPE_FLOAT:
 259                                 if (r_size == 32) {
 260                                         attr.type = ATTRIBUTE_FLOAT;
 261                                 } else {
 262                                         assert(r_size == 16);
 263                                         attr.type = ATTRIBUTE_HALF_FLOAT;
 264                                 }
 265                                 break;
 266
 267                         case UTIL_FORMAT_TYPE_SIGNED:
 268                         case UTIL_FORMAT_TYPE_UNSIGNED:
 269                                 switch (r_size) {
 270                                 case 32:
 271                                         attr.type = ATTRIBUTE_INT;
 272                                         break;
 273                                 case 16:
 274                                         attr.type = ATTRIBUTE_SHORT;
 275                                         break;
 276                                 case 10:
 277                                         attr.type = ATTRIBUTE_INT2_10_10_10;
 278                                         break;
 279                                 case 8:
 280                                         attr.type = ATTRIBUTE_BYTE;
 281                                         break;
 282                                 default:
 283                                         fprintf(stderr,
 284                                                 "format %s unsupported\n",
 285                                                 desc->name);
 286                                         attr.type = ATTRIBUTE_BYTE;
 287                                         abort();
 288                                 }
 289                                 break;
 290
 291                         default:
 292                                 fprintf(stderr,
 293                                         "format %s unsupported\n",
 294                                         desc->name);
 295                                 abort();
 296                         }
 297
 298                         attr.signed_int_type =
 299                                 desc->channel[0].type == UTIL_FORMAT_TYPE_SIGNED;
 300
 301                         attr.normalized_int_type = desc->channel[0].normalized;
 302                         attr.read_as_int_uint = desc->channel[0].pure_integer;
 303                         attr.address = cl_address(rsc->bo, offset);
 304                         attr.stride = vb->stride;
 305                         attr.instance_divisor = elem->instance_divisor;
 306                         attr.number_of_values_read_by_coordinate_shader =
 307                                 vc5->prog.cs->prog_data.vs->vattr_sizes[i];
 308                         attr.number_of_values_read_by_vertex_shader =
 309                                 vc5->prog.vs->prog_data.vs->vattr_sizes[i];
 310                 }
 311         }
 312
 313         cl_emit(&job->bcl, GL_SHADER_STATE, state) {
 314                 state.address = cl_address(job->indirect.bo, shader_rec_offset);
 315                 state.number_of_attribute_arrays = vtx->num_elements;
 316         }
 317
 318         vc5_bo_unreference(&cs_uniforms.bo);
 319         vc5_bo_unreference(&vs_uniforms.bo);
 320         vc5_bo_unreference(&fs_uniforms.bo);
 321         vc5_bo_unreference(&default_values.bo);
 322
 323         job->shader_rec_count++;
 324 }
 325
 326 static void
 327 vc5_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info)
 328 {
 329         struct vc5_context *vc5 = vc5_context(pctx);
 330
 331         if (!info->count_from_stream_output && !info->indirect &&
 332             !info->primitive_restart &&
 333             !u_trim_pipe_prim(info->mode, (unsigned*)&info->count))
 334                 return;
 335
 336         /* Fall back for weird desktop GL primitive restart values. */
 337         if (info->primitive_restart &&
 338             info->index_size) {
 339                 uint32_t mask = ~0;
 340
 341                 switch (info->index_size) {
 342                 case 2:
 343                         mask = 0xffff;
 344                         break;
 345                 case 1:
 346                         mask = 0xff;
 347                         break;
 348                 }
 349
 350                 if (info->restart_index != mask) {
 351                         util_draw_vbo_without_prim_restart(pctx, info);
 352                         return;
 353                 }
 354         }
 355
 356         if (info->mode >= PIPE_PRIM_QUADS) {
 357                 util_primconvert_save_rasterizer_state(vc5->primconvert, &vc5->rasterizer->base);
 358                 util_primconvert_draw_vbo(vc5->primconvert, info);
 359                 perf_debug("Fallback conversion for %d %s vertices\n",
 360                            info->count, u_prim_name(info->mode));
 361                 return;
 362         }
 363
 364         /* Before setting up the draw, flush anything writing to the textures
 365          * that we read from.
 366          */
 367         vc5_predraw_check_textures(pctx, &vc5->verttex);
 368         vc5_predraw_check_textures(pctx, &vc5->fragtex);
 369
 370         struct vc5_job *job = vc5_get_job_for_fbo(vc5);
 371
 372         /* Get space to emit our draw call into the BCL, using a branch to
 373          * jump to a new BO if necessary.
 374          */
 375         vc5_cl_ensure_space_with_branch(&job->bcl, 256 /* XXX */);
 376
 377         if (vc5->prim_mode != info->mode) {
 378                 vc5->prim_mode = info->mode;
 379                 vc5->dirty |= VC5_DIRTY_PRIM_MODE;
 380         }
 381
 382         vc5_start_draw(vc5);
 383         vc5_update_compiled_shaders(vc5, info->mode);
 384
 385         vc5_emit_state(pctx);
 386
 387         if (vc5->dirty & (VC5_DIRTY_VTXBUF |
 388                           VC5_DIRTY_VTXSTATE |
 389                           VC5_DIRTY_PRIM_MODE |
 390                           VC5_DIRTY_RASTERIZER |
 391                           VC5_DIRTY_COMPILED_CS |
 392                           VC5_DIRTY_COMPILED_VS |
 393                           VC5_DIRTY_COMPILED_FS |
 394                           vc5->prog.cs->uniform_dirty_bits |
 395                           vc5->prog.vs->uniform_dirty_bits |
 396                           vc5->prog.fs->uniform_dirty_bits)) {
 397                 vc5_emit_gl_shader_state(vc5, info);
 398         }
 399
 400         vc5->dirty = 0;
 401
 402         /* The Base Vertex/Base Instance packet sets those values to nonzero
 403          * for the next draw call only.
 404          */
 405         if (info->index_bias || info->start_instance) {
 406                 cl_emit(&job->bcl, BASE_VERTEX_BASE_INSTANCE, base) {
 407                         base.base_instance = info->start_instance;
 408                         base.base_vertex = info->index_bias;
 409                 }
 410         }
 411
 412         /* Note that the primitive type fields match with OpenGL/gallium
 413          * definitions, up to but not including QUADS.
 414          */
 415         if (info->index_size) {
 416                 uint32_t index_size = info->index_size;
 417                 uint32_t offset = info->start * index_size;
 418                 struct pipe_resource *prsc;
 419                 if (info->has_user_indices) {
 420                         prsc = NULL;
 421                         u_upload_data(vc5->uploader, 0,
 422                                       info->count * info->index_size, 4,
 423                                       info->index.user,
 424                                       &offset, &prsc);
 425                 } else {
 426                         prsc = info->index.resource;
 427                 }
 428                 struct vc5_resource *rsc = vc5_resource(prsc);
 429
 430                 if (info->instance_count > 1) {
 431                         cl_emit(&job->bcl, INDEXED_INSTANCED_PRIMITIVE_LIST, prim) {
 432                                 prim.index_type = ffs(info->index_size) - 1;
 433                                 prim.maximum_index = (1u << 31) - 1; /* XXX */
 434                                 prim.address_of_indices_list =
 435                                         cl_address(rsc->bo, offset);
 436                                 prim.mode = info->mode;
 437                                 prim.enable_primitive_restarts = info->primitive_restart;
 438
 439                                 prim.number_of_instances = info->instance_count;
 440                                 prim.instance_length = info->count;
 441                         }
 442                 } else {
 443                         cl_emit(&job->bcl, INDEXED_PRIMITIVE_LIST, prim) {
 444                                 prim.index_type = ffs(info->index_size) - 1;
 445                                 prim.length = info->count;
 446                                 prim.maximum_index = (1u << 31) - 1; /* XXX */
 447                                 prim.address_of_indices_list =
 448                                         cl_address(rsc->bo, offset);
 449                                 prim.mode = info->mode;
 450                                 prim.enable_primitive_restarts = info->primitive_restart;
 451                         }
 452                 }
 453
 454                 job->draw_calls_queued++;
 455
 456                 if (info->has_user_indices)
 457                         pipe_resource_reference(&prsc, NULL);
 458         } else {
 459                 if (info->instance_count > 1) {
 460                         cl_emit(&job->bcl, VERTEX_ARRAY_INSTANCED_PRIMITIVES, prim) {
 461                                 prim.mode = info->mode;
 462                                 prim.index_of_first_vertex = info->start;
 463                                 prim.number_of_instances = info->instance_count;
 464                                 prim.instance_length = info->count;
 465                         }
 466                 } else {
 467                         cl_emit(&job->bcl, VERTEX_ARRAY_PRIMITIVES, prim) {
 468                                 prim.mode = info->mode;
 469                                 prim.length = info->count;
 470                                 prim.index_of_first_vertex = info->start;
 471                         }
 472                 }
 473         }
 474         job->draw_calls_queued++;
 475
 476         if (vc5->zsa && job->zsbuf &&
 477             (vc5->zsa->base.depth.enabled ||
 478              vc5->zsa->base.stencil[0].enabled)) {
 479                 struct vc5_resource *rsc = vc5_resource(job->zsbuf->texture);
 480                 vc5_job_add_bo(job, rsc->bo);
 481
 482                 if (vc5->zsa->base.depth.enabled) {
 483                         job->resolve |= PIPE_CLEAR_DEPTH;
 484                         rsc->initialized_buffers = PIPE_CLEAR_DEPTH;
 485
 486                         if (vc5->zsa->early_z_enable)
 487                                 job->uses_early_z = true;
 488                 }
 489
 490                 if (vc5->zsa->base.stencil[0].enabled) {
 491                         job->resolve |= PIPE_CLEAR_STENCIL;
 492                         rsc->initialized_buffers |= PIPE_CLEAR_STENCIL;
 493                 }
 494         }
 495
 496         for (int i = 0; i < VC5_MAX_DRAW_BUFFERS; i++) {
 497                 uint32_t bit = PIPE_CLEAR_COLOR0 << i;
 498
 499                 if (job->resolve & bit || !job->cbufs[i])
 500                         continue;
 501                 struct vc5_resource *rsc = vc5_resource(job->cbufs[i]->texture);
 502
 503                 job->resolve |= bit;
 504                 vc5_job_add_bo(job, rsc->bo);
 505         }
 506
 507         if (V3D_DEBUG & V3D_DEBUG_ALWAYS_FLUSH)
 508                 vc5_flush(pctx);
 509 }
 510
 511 static uint32_t
 512 pack_rgba(enum pipe_format format, const float *rgba)
 513 {
 514         union util_color uc;
 515         util_pack_color(rgba, format, &uc);
 516         if (util_format_get_blocksize(format) == 2)
 517                 return uc.us;
 518         else
 519                 return uc.ui[0];
 520 }
 521
 522 static void
 523 vc5_clear(struct pipe_context *pctx, unsigned buffers,
 524           const union pipe_color_union *color, double depth, unsigned stencil)
 525 {
 526         struct vc5_context *vc5 = vc5_context(pctx);
 527         struct vc5_job *job = vc5_get_job_for_fbo(vc5);
 528
 529         /* We can't flag new buffers for clearing once we've queued draws.  We
 530          * could avoid this by using the 3d engine to clear.
 531          */
 532         if (job->draw_calls_queued) {
 533                 perf_debug("Flushing rendering to process new clear.\n");
 534                 vc5_job_submit(vc5, job);
 535                 job = vc5_get_job_for_fbo(vc5);
 536         }
 537
 538         if (buffers & PIPE_CLEAR_COLOR0) {
 539                 struct vc5_resource *rsc =
 540                         vc5_resource(vc5->framebuffer.cbufs[0]->texture);
 541                 uint32_t clear_color;
 542
 543 #if 0
 544                 if (vc5_rt_format_is_565(vc5->framebuffer.cbufs[0]->format)) {
 545                         /* In 565 mode, the hardware will be packing our color
 546                          * for us.
 547                          */
 548                         clear_color = pack_rgba(PIPE_FORMAT_R8G8B8A8_UNORM,
 549                                                 color->f);
 550                 } else {
 551                         /* Otherwise, we need to do this packing because we
 552                          * support multiple swizzlings of RGBA8888.
 553                          */
 554                         clear_color =
 555                                 pack_rgba(vc5->framebuffer.cbufs[0]->format,
 556                                           color->f);
 557                 }
 558 #endif
 559                 clear_color = pack_rgba(vc5->framebuffer.cbufs[0]->format,
 560                                         color->f);
 561
 562                 job->clear_color[0] = job->clear_color[1] = clear_color;
 563                 rsc->initialized_buffers |= (buffers & PIPE_CLEAR_COLOR0);
 564         }
 565
 566         unsigned zsclear = buffers & PIPE_CLEAR_DEPTHSTENCIL;
 567         if (zsclear) {
 568                 struct vc5_resource *rsc =
 569                         vc5_resource(vc5->framebuffer.zsbuf->texture);
 570
 571                 if (zsclear & PIPE_CLEAR_DEPTH)
 572                         job->clear_z = depth;
 573                 if (zsclear & PIPE_CLEAR_STENCIL)
 574                         job->clear_s = stencil;
 575
 576                 rsc->initialized_buffers |= zsclear;
 577         }
 578
 579         job->draw_min_x = 0;
 580         job->draw_min_y = 0;
 581         job->draw_max_x = vc5->framebuffer.width;
 582         job->draw_max_y = vc5->framebuffer.height;
 583         job->cleared |= buffers;
 584         job->resolve |= buffers;
 585
 586         vc5_start_draw(vc5);
 587 }
 588
 589 static void
 590 vc5_clear_render_target(struct pipe_context *pctx, struct pipe_surface *ps,
 591                         const union pipe_color_union *color,
 592                         unsigned x, unsigned y, unsigned w, unsigned h,
 593                         bool render_condition_enabled)
 594 {
 595         fprintf(stderr, "unimpl: clear RT\n");
 596 }
 597
 598 static void
 599 vc5_clear_depth_stencil(struct pipe_context *pctx, struct pipe_surface *ps,
 600                         unsigned buffers, double depth, unsigned stencil,
 601                         unsigned x, unsigned y, unsigned w, unsigned h,
 602                         bool render_condition_enabled)
 603 {
 604         fprintf(stderr, "unimpl: clear DS\n");
 605 }
 606
 607 void
 608 vc5_draw_init(struct pipe_context *pctx)
 609 {
 610         pctx->draw_vbo = vc5_draw_vbo;
 611         pctx->clear = vc5_clear;
 612         pctx->clear_render_target = vc5_clear_render_target;
 613         pctx->clear_depth_stencil = vc5_clear_depth_stencil;
 614 }