src/gallium/drivers/v3d/v3dx_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 "v3d_context.h"
  33 #include "v3d_resource.h"
  34 #include "v3d_cl.h"
  35 #include "broadcom/compiler/v3d_compiler.h"
  36 #include "broadcom/common/v3d_macros.h"
  37 #include "broadcom/cle/v3dx_pack.h"
  38
  39 /**
  40  * Does the initial bining command list setup for drawing to a given FBO.
  41  */
  42 static void
  43 v3d_start_draw(struct v3d_context *v3d)
  44 {
  45         struct v3d_job *job = v3d->job;
  46
  47         if (job->needs_flush)
  48                 return;
  49
  50         /* Get space to emit our BCL state, using a branch to jump to a new BO
  51          * if necessary.
  52          */
  53         v3d_cl_ensure_space_with_branch(&job->bcl, 256 /* XXX */);
  54
  55         job->submit.bcl_start = job->bcl.bo->offset;
  56         v3d_job_add_bo(job, job->bcl.bo);
  57
  58         job->tile_alloc = v3d_bo_alloc(v3d->screen, 1024 * 1024, "tile alloc");
  59         uint32_t tsda_per_tile_size = v3d->screen->devinfo.ver >= 40 ? 256 : 64;
  60         job->tile_state = v3d_bo_alloc(v3d->screen,
  61                                        job->draw_tiles_y *
  62                                        job->draw_tiles_x *
  63                                        tsda_per_tile_size,
  64                                        "TSDA");
  65
  66 #if V3D_VERSION < 40
  67         /* "Binning mode lists start with a Tile Binning Mode Configuration
  68          * item (120)"
  69          *
  70          * Part1 signals the end of binning config setup.
  71          */
  72         cl_emit(&job->bcl, TILE_BINNING_MODE_CONFIGURATION_PART2, config) {
  73                 config.tile_allocation_memory_address =
  74                         cl_address(job->tile_alloc, 0);
  75                 config.tile_allocation_memory_size = job->tile_alloc->size;
  76         }
  77 #endif
  78
  79         cl_emit(&job->bcl, TILE_BINNING_MODE_CONFIGURATION_PART1, config) {
  80 #if V3D_VERSION >= 40
  81                 config.width_in_pixels_minus_1 = v3d->framebuffer.width - 1;
  82                 config.height_in_pixels_minus_1 = v3d->framebuffer.height - 1;
  83                 config.number_of_render_targets_minus_1 =
  84                         MAX2(v3d->framebuffer.nr_cbufs, 1) - 1;
  85 #else /* V3D_VERSION < 40 */
  86                 config.tile_state_data_array_base_address =
  87                         cl_address(job->tile_state, 0);
  88
  89                 config.width_in_tiles = job->draw_tiles_x;
  90                 config.height_in_tiles = job->draw_tiles_y;
  91                 /* Must be >= 1 */
  92                 config.number_of_render_targets =
  93                         MAX2(v3d->framebuffer.nr_cbufs, 1);
  94 #endif /* V3D_VERSION < 40 */
  95
  96                 config.multisample_mode_4x = job->msaa;
  97
  98                 config.maximum_bpp_of_all_render_targets = job->internal_bpp;
  99         }
 100
 101         /* There's definitely nothing in the VCD cache we want. */
 102         cl_emit(&job->bcl, FLUSH_VCD_CACHE, bin);
 103
 104         /* Disable any leftover OQ state from another job. */
 105         cl_emit(&job->bcl, OCCLUSION_QUERY_COUNTER, counter);
 106
 107         /* "Binning mode lists must have a Start Tile Binning item (6) after
 108          *  any prefix state data before the binning list proper starts."
 109          */
 110         cl_emit(&job->bcl, START_TILE_BINNING, bin);
 111
 112         job->needs_flush = true;
 113         job->draw_width = v3d->framebuffer.width;
 114         job->draw_height = v3d->framebuffer.height;
 115 }
 116
 117 static void
 118 v3d_predraw_check_textures(struct pipe_context *pctx,
 119                            struct v3d_texture_stateobj *stage_tex)
 120 {
 121         struct v3d_context *v3d = v3d_context(pctx);
 122
 123         for (int i = 0; i < stage_tex->num_textures; i++) {
 124                 struct pipe_sampler_view *view = stage_tex->textures[i];
 125                 if (!view)
 126                         continue;
 127
 128                 v3d_flush_jobs_writing_resource(v3d, view->texture);
 129         }
 130 }
 131
 132 static void
 133 v3d_emit_gl_shader_state(struct v3d_context *v3d,
 134                          const struct pipe_draw_info *info)
 135 {
 136         struct v3d_job *job = v3d->job;
 137         /* VC5_DIRTY_VTXSTATE */
 138         struct v3d_vertex_stateobj *vtx = v3d->vtx;
 139         /* VC5_DIRTY_VTXBUF */
 140         struct v3d_vertexbuf_stateobj *vertexbuf = &v3d->vertexbuf;
 141
 142         /* Upload the uniforms to the indirect CL first */
 143         struct v3d_cl_reloc fs_uniforms =
 144                 v3d_write_uniforms(v3d, v3d->prog.fs,
 145                                    &v3d->constbuf[PIPE_SHADER_FRAGMENT],
 146                                    &v3d->fragtex);
 147         struct v3d_cl_reloc vs_uniforms =
 148                 v3d_write_uniforms(v3d, v3d->prog.vs,
 149                                    &v3d->constbuf[PIPE_SHADER_VERTEX],
 150                                    &v3d->verttex);
 151         struct v3d_cl_reloc cs_uniforms =
 152                 v3d_write_uniforms(v3d, v3d->prog.cs,
 153                                    &v3d->constbuf[PIPE_SHADER_VERTEX],
 154                                    &v3d->verttex);
 155
 156         /* See GFXH-930 workaround below */
 157         uint32_t num_elements_to_emit = MAX2(vtx->num_elements, 1);
 158         uint32_t shader_rec_offset =
 159                 v3d_cl_ensure_space(&job->indirect,
 160                                     cl_packet_length(GL_SHADER_STATE_RECORD) +
 161                                     num_elements_to_emit *
 162                                     cl_packet_length(GL_SHADER_STATE_ATTRIBUTE_RECORD),
 163                                     32);
 164
 165         cl_emit(&job->indirect, GL_SHADER_STATE_RECORD, shader) {
 166                 shader.enable_clipping = true;
 167                 /* VC5_DIRTY_PRIM_MODE | VC5_DIRTY_RASTERIZER */
 168                 shader.point_size_in_shaded_vertex_data =
 169                         (info->mode == PIPE_PRIM_POINTS &&
 170                          v3d->rasterizer->base.point_size_per_vertex);
 171
 172                 /* Must be set if the shader modifies Z, discards, or modifies
 173                  * the sample mask.  For any of these cases, the fragment
 174                  * shader needs to write the Z value (even just discards).
 175                  */
 176                 shader.fragment_shader_does_z_writes =
 177                         (v3d->prog.fs->prog_data.fs->writes_z ||
 178                          v3d->prog.fs->prog_data.fs->discard);
 179
 180                 shader.fragment_shader_uses_real_pixel_centre_w_in_addition_to_centroid_w2 =
 181                         v3d->prog.fs->prog_data.fs->uses_centroid_and_center_w;
 182
 183                 shader.number_of_varyings_in_fragment_shader =
 184                         v3d->prog.fs->prog_data.base->num_inputs;
 185
 186                 shader.coordinate_shader_propagate_nans = true;
 187                 shader.vertex_shader_propagate_nans = true;
 188                 shader.fragment_shader_propagate_nans = true;
 189
 190                 shader.coordinate_shader_code_address =
 191                         cl_address(v3d->prog.cs->bo, 0);
 192                 shader.vertex_shader_code_address =
 193                         cl_address(v3d->prog.vs->bo, 0);
 194                 shader.fragment_shader_code_address =
 195                         cl_address(v3d->prog.fs->bo, 0);
 196
 197                 /* XXX: Use combined input/output size flag in the common
 198                  * case.
 199                  */
 200                 shader.coordinate_shader_has_separate_input_and_output_vpm_blocks = true;
 201                 shader.vertex_shader_has_separate_input_and_output_vpm_blocks = true;
 202                 shader.coordinate_shader_input_vpm_segment_size =
 203                         MAX2(v3d->prog.cs->prog_data.vs->vpm_input_size, 1);
 204                 shader.vertex_shader_input_vpm_segment_size =
 205                         MAX2(v3d->prog.vs->prog_data.vs->vpm_input_size, 1);
 206
 207                 shader.coordinate_shader_output_vpm_segment_size =
 208                         v3d->prog.cs->prog_data.vs->vpm_output_size;
 209                 shader.vertex_shader_output_vpm_segment_size =
 210                         v3d->prog.vs->prog_data.vs->vpm_output_size;
 211
 212                 shader.coordinate_shader_uniforms_address = cs_uniforms;
 213                 shader.vertex_shader_uniforms_address = vs_uniforms;
 214                 shader.fragment_shader_uniforms_address = fs_uniforms;
 215
 216 #if V3D_VERSION >= 41
 217                 shader.coordinate_shader_4_way_threadable =
 218                         v3d->prog.cs->prog_data.vs->base.threads == 4;
 219                 shader.vertex_shader_4_way_threadable =
 220                         v3d->prog.vs->prog_data.vs->base.threads == 4;
 221                 shader.fragment_shader_4_way_threadable =
 222                         v3d->prog.fs->prog_data.fs->base.threads == 4;
 223
 224                 shader.coordinate_shader_start_in_final_thread_section =
 225                         v3d->prog.cs->prog_data.vs->base.single_seg;
 226                 shader.vertex_shader_start_in_final_thread_section =
 227                         v3d->prog.vs->prog_data.vs->base.single_seg;
 228                 shader.fragment_shader_start_in_final_thread_section =
 229                         v3d->prog.fs->prog_data.fs->base.single_seg;
 230 #else
 231                 shader.coordinate_shader_4_way_threadable =
 232                         v3d->prog.cs->prog_data.vs->base.threads == 4;
 233                 shader.coordinate_shader_2_way_threadable =
 234                         v3d->prog.cs->prog_data.vs->base.threads == 2;
 235                 shader.vertex_shader_4_way_threadable =
 236                         v3d->prog.vs->prog_data.vs->base.threads == 4;
 237                 shader.vertex_shader_2_way_threadable =
 238                         v3d->prog.vs->prog_data.vs->base.threads == 2;
 239                 shader.fragment_shader_4_way_threadable =
 240                         v3d->prog.fs->prog_data.fs->base.threads == 4;
 241                 shader.fragment_shader_2_way_threadable =
 242                         v3d->prog.fs->prog_data.fs->base.threads == 2;
 243 #endif
 244
 245                 shader.vertex_id_read_by_coordinate_shader =
 246                         v3d->prog.cs->prog_data.vs->uses_vid;
 247                 shader.instance_id_read_by_coordinate_shader =
 248                         v3d->prog.cs->prog_data.vs->uses_iid;
 249                 shader.vertex_id_read_by_vertex_shader =
 250                         v3d->prog.vs->prog_data.vs->uses_vid;
 251                 shader.instance_id_read_by_vertex_shader =
 252                         v3d->prog.vs->prog_data.vs->uses_iid;
 253
 254                 shader.address_of_default_attribute_values =
 255                         cl_address(vtx->default_attribute_values, 0);
 256         }
 257
 258         for (int i = 0; i < vtx->num_elements; i++) {
 259                 struct pipe_vertex_element *elem = &vtx->pipe[i];
 260                 struct pipe_vertex_buffer *vb =
 261                         &vertexbuf->vb[elem->vertex_buffer_index];
 262                 struct v3d_resource *rsc = v3d_resource(vb->buffer.resource);
 263
 264                 const uint32_t size =
 265                         cl_packet_length(GL_SHADER_STATE_ATTRIBUTE_RECORD);
 266                 cl_emit_with_prepacked(&job->indirect,
 267                                        GL_SHADER_STATE_ATTRIBUTE_RECORD,
 268                                        &vtx->attrs[i * size], attr) {
 269                         attr.stride = vb->stride;
 270                         attr.address = cl_address(rsc->bo,
 271                                                   vb->buffer_offset +
 272                                                   elem->src_offset);
 273                         attr.number_of_values_read_by_coordinate_shader =
 274                                 v3d->prog.cs->prog_data.vs->vattr_sizes[i];
 275                         attr.number_of_values_read_by_vertex_shader =
 276                                 v3d->prog.vs->prog_data.vs->vattr_sizes[i];
 277 #if V3D_VERSION >= 41
 278                         attr.maximum_index = 0xffffff;
 279 #endif
 280                 }
 281         }
 282
 283         if (vtx->num_elements == 0) {
 284                 /* GFXH-930: At least one attribute must be enabled and read
 285                  * by CS and VS.  If we have no attributes being consumed by
 286                  * the shader, set up a dummy to be loaded into the VPM.
 287                  */
 288                 cl_emit(&job->indirect, GL_SHADER_STATE_ATTRIBUTE_RECORD, attr) {
 289                         /* Valid address of data whose value will be unused. */
 290                         attr.address = cl_address(job->indirect.bo, 0);
 291
 292                         attr.type = ATTRIBUTE_FLOAT;
 293                         attr.stride = 0;
 294                         attr.vec_size = 1;
 295
 296                         attr.number_of_values_read_by_coordinate_shader = 1;
 297                         attr.number_of_values_read_by_vertex_shader = 1;
 298                 }
 299         }
 300
 301         cl_emit(&job->bcl, GL_SHADER_STATE, state) {
 302                 state.address = cl_address(job->indirect.bo, shader_rec_offset);
 303                 state.number_of_attribute_arrays = num_elements_to_emit;
 304         }
 305
 306         v3d_bo_unreference(&cs_uniforms.bo);
 307         v3d_bo_unreference(&vs_uniforms.bo);
 308         v3d_bo_unreference(&fs_uniforms.bo);
 309
 310         job->shader_rec_count++;
 311 }
 312
 313 /**
 314  * Computes the various transform feedback statistics, since they can't be
 315  * recorded by CL packets.
 316  */
 317 static void
 318 v3d_tf_statistics_record(struct v3d_context *v3d,
 319                          const struct pipe_draw_info *info,
 320                          bool prim_tf)
 321 {
 322         if (!v3d->active_queries)
 323                 return;
 324
 325         uint32_t prims = u_prims_for_vertices(info->mode, info->count);
 326         v3d->prims_generated += prims;
 327
 328         if (prim_tf) {
 329                 /* XXX: Only count if we didn't overflow. */
 330                 v3d->tf_prims_generated += prims;
 331         }
 332 }
 333
 334 static void
 335 v3d_update_job_ez(struct v3d_context *v3d, struct v3d_job *job)
 336 {
 337         switch (v3d->zsa->ez_state) {
 338         case VC5_EZ_UNDECIDED:
 339                 /* If the Z/S state didn't pick a direction but didn't
 340                  * disable, then go along with the current EZ state.  This
 341                  * allows EZ optimization for Z func == EQUAL or NEVER.
 342                  */
 343                 break;
 344
 345         case VC5_EZ_LT_LE:
 346         case VC5_EZ_GT_GE:
 347                 /* If the Z/S state picked a direction, then it needs to match
 348                  * the current direction if we've decided on one.
 349                  */
 350                 if (job->ez_state == VC5_EZ_UNDECIDED)
 351                         job->ez_state = v3d->zsa->ez_state;
 352                 else if (job->ez_state != v3d->zsa->ez_state)
 353                         job->ez_state = VC5_EZ_DISABLED;
 354                 break;
 355
 356         case VC5_EZ_DISABLED:
 357                 /* If the current Z/S state disables EZ because of a bad Z
 358                  * func or stencil operation, then we can't do any more EZ in
 359                  * this frame.
 360                  */
 361                 job->ez_state = VC5_EZ_DISABLED;
 362                 break;
 363         }
 364
 365         /* If the FS affects the Z of the pixels, then it may update against
 366          * the chosen EZ direction (though we could use
 367          * ARB_conservative_depth's hints to avoid this)
 368          */
 369         if (v3d->prog.fs->prog_data.fs->writes_z) {
 370                 job->ez_state = VC5_EZ_DISABLED;
 371         }
 372
 373         if (job->first_ez_state == VC5_EZ_UNDECIDED)
 374                 job->first_ez_state = job->ez_state;
 375 }
 376
 377 static void
 378 v3d_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info)
 379 {
 380         struct v3d_context *v3d = v3d_context(pctx);
 381
 382         if (!info->count_from_stream_output && !info->indirect &&
 383             !info->primitive_restart &&
 384             !u_trim_pipe_prim(info->mode, (unsigned*)&info->count))
 385                 return;
 386
 387         /* Fall back for weird desktop GL primitive restart values. */
 388         if (info->primitive_restart &&
 389             info->index_size) {
 390                 uint32_t mask = ~0;
 391
 392                 switch (info->index_size) {
 393                 case 2:
 394                         mask = 0xffff;
 395                         break;
 396                 case 1:
 397                         mask = 0xff;
 398                         break;
 399                 }
 400
 401                 if (info->restart_index != mask) {
 402                         util_draw_vbo_without_prim_restart(pctx, info);
 403                         return;
 404                 }
 405         }
 406
 407         if (info->mode >= PIPE_PRIM_QUADS) {
 408                 util_primconvert_save_rasterizer_state(v3d->primconvert, &v3d->rasterizer->base);
 409                 util_primconvert_draw_vbo(v3d->primconvert, info);
 410                 perf_debug("Fallback conversion for %d %s vertices\n",
 411                            info->count, u_prim_name(info->mode));
 412                 return;
 413         }
 414
 415         /* Before setting up the draw, flush anything writing to the textures
 416          * that we read from.
 417          */
 418         v3d_predraw_check_textures(pctx, &v3d->verttex);
 419         v3d_predraw_check_textures(pctx, &v3d->fragtex);
 420
 421         struct v3d_job *job = v3d_get_job_for_fbo(v3d);
 422
 423         /* Get space to emit our draw call into the BCL, using a branch to
 424          * jump to a new BO if necessary.
 425          */
 426         v3d_cl_ensure_space_with_branch(&job->bcl, 256 /* XXX */);
 427
 428         if (v3d->prim_mode != info->mode) {
 429                 v3d->prim_mode = info->mode;
 430                 v3d->dirty |= VC5_DIRTY_PRIM_MODE;
 431         }
 432
 433         v3d_start_draw(v3d);
 434         v3d_update_compiled_shaders(v3d, info->mode);
 435         v3d_update_job_ez(v3d, job);
 436
 437 #if V3D_VERSION >= 41
 438         v3d41_emit_state(pctx);
 439 #else
 440         v3d33_emit_state(pctx);
 441 #endif
 442
 443         if (v3d->dirty & (VC5_DIRTY_VTXBUF |
 444                           VC5_DIRTY_VTXSTATE |
 445                           VC5_DIRTY_PRIM_MODE |
 446                           VC5_DIRTY_RASTERIZER |
 447                           VC5_DIRTY_COMPILED_CS |
 448                           VC5_DIRTY_COMPILED_VS |
 449                           VC5_DIRTY_COMPILED_FS |
 450                           v3d->prog.cs->uniform_dirty_bits |
 451                           v3d->prog.vs->uniform_dirty_bits |
 452                           v3d->prog.fs->uniform_dirty_bits)) {
 453                 v3d_emit_gl_shader_state(v3d, info);
 454         }
 455
 456         v3d->dirty = 0;
 457
 458         /* The Base Vertex/Base Instance packet sets those values to nonzero
 459          * for the next draw call only.
 460          */
 461         if (info->index_bias || info->start_instance) {
 462                 cl_emit(&job->bcl, BASE_VERTEX_BASE_INSTANCE, base) {
 463                         base.base_instance = info->start_instance;
 464                         base.base_vertex = info->index_bias;
 465                 }
 466         }
 467
 468         uint32_t prim_tf_enable = 0;
 469 #if V3D_VERSION < 40
 470         /* V3D 3.x: The HW only processes transform feedback on primitives
 471          * with the flag set.
 472          */
 473         if (v3d->streamout.num_targets)
 474                 prim_tf_enable = (V3D_PRIM_POINTS_TF - V3D_PRIM_POINTS);
 475 #endif
 476
 477         v3d_tf_statistics_record(v3d, info, v3d->streamout.num_targets);
 478
 479         /* Note that the primitive type fields match with OpenGL/gallium
 480          * definitions, up to but not including QUADS.
 481          */
 482         if (info->index_size) {
 483                 uint32_t index_size = info->index_size;
 484                 uint32_t offset = info->start * index_size;
 485                 struct pipe_resource *prsc;
 486                 if (info->has_user_indices) {
 487                         prsc = NULL;
 488                         u_upload_data(v3d->uploader, 0,
 489                                       info->count * info->index_size, 4,
 490                                       info->index.user,
 491                                       &offset, &prsc);
 492                 } else {
 493                         prsc = info->index.resource;
 494                 }
 495                 struct v3d_resource *rsc = v3d_resource(prsc);
 496
 497 #if V3D_VERSION >= 40
 498                 cl_emit(&job->bcl, INDEX_BUFFER_SETUP, ib) {
 499                         ib.address = cl_address(rsc->bo, 0);
 500                         ib.size = rsc->bo->size;
 501                 }
 502 #endif
 503
 504                 if (info->instance_count > 1) {
 505                         cl_emit(&job->bcl, INDEXED_INSTANCED_PRIMITIVE_LIST, prim) {
 506                                 prim.index_type = ffs(info->index_size) - 1;
 507 #if V3D_VERSION >= 40
 508                                 prim.index_offset = offset;
 509 #else /* V3D_VERSION < 40 */
 510                                 prim.maximum_index = (1u << 31) - 1; /* XXX */
 511                                 prim.address_of_indices_list =
 512                                         cl_address(rsc->bo, offset);
 513 #endif /* V3D_VERSION < 40 */
 514                                 prim.mode = info->mode | prim_tf_enable;
 515                                 prim.enable_primitive_restarts = info->primitive_restart;
 516
 517                                 prim.number_of_instances = info->instance_count;
 518                                 prim.instance_length = info->count;
 519                         }
 520                 } else {
 521                         cl_emit(&job->bcl, INDEXED_PRIMITIVE_LIST, prim) {
 522                                 prim.index_type = ffs(info->index_size) - 1;
 523                                 prim.length = info->count;
 524 #if V3D_VERSION >= 40
 525                                 prim.index_offset = offset;
 526 #else /* V3D_VERSION < 40 */
 527                                 prim.maximum_index = (1u << 31) - 1; /* XXX */
 528                                 prim.address_of_indices_list =
 529                                         cl_address(rsc->bo, offset);
 530 #endif /* V3D_VERSION < 40 */
 531                                 prim.mode = info->mode | prim_tf_enable;
 532                                 prim.enable_primitive_restarts = info->primitive_restart;
 533                         }
 534                 }
 535
 536                 job->draw_calls_queued++;
 537
 538                 if (info->has_user_indices)
 539                         pipe_resource_reference(&prsc, NULL);
 540         } else {
 541                 if (info->instance_count > 1) {
 542                         cl_emit(&job->bcl, VERTEX_ARRAY_INSTANCED_PRIMITIVES, prim) {
 543                                 prim.mode = info->mode | prim_tf_enable;
 544                                 prim.index_of_first_vertex = info->start;
 545                                 prim.number_of_instances = info->instance_count;
 546                                 prim.instance_length = info->count;
 547                         }
 548                 } else {
 549                         cl_emit(&job->bcl, VERTEX_ARRAY_PRIMITIVES, prim) {
 550                                 prim.mode = info->mode | prim_tf_enable;
 551                                 prim.length = info->count;
 552                                 prim.index_of_first_vertex = info->start;
 553                         }
 554                 }
 555         }
 556         job->draw_calls_queued++;
 557
 558         if (v3d->zsa && job->zsbuf &&
 559             (v3d->zsa->base.depth.enabled ||
 560              v3d->zsa->base.stencil[0].enabled)) {
 561                 struct v3d_resource *rsc = v3d_resource(job->zsbuf->texture);
 562                 v3d_job_add_bo(job, rsc->bo);
 563
 564                 if (v3d->zsa->base.depth.enabled) {
 565                         job->resolve |= PIPE_CLEAR_DEPTH;
 566                         rsc->initialized_buffers = PIPE_CLEAR_DEPTH;
 567                 }
 568
 569                 if (v3d->zsa->base.stencil[0].enabled) {
 570                         job->resolve |= PIPE_CLEAR_STENCIL;
 571                         rsc->initialized_buffers |= PIPE_CLEAR_STENCIL;
 572                 }
 573         }
 574
 575         for (int i = 0; i < VC5_MAX_DRAW_BUFFERS; i++) {
 576                 uint32_t bit = PIPE_CLEAR_COLOR0 << i;
 577
 578                 if (job->resolve & bit || !job->cbufs[i])
 579                         continue;
 580                 struct v3d_resource *rsc = v3d_resource(job->cbufs[i]->texture);
 581
 582                 job->resolve |= bit;
 583                 v3d_job_add_bo(job, rsc->bo);
 584         }
 585
 586         if (job->referenced_size > 768 * 1024 * 1024) {
 587                 perf_debug("Flushing job with %dkb to try to free up memory\n",
 588                         job->referenced_size / 1024);
 589                 v3d_flush(pctx);
 590         }
 591
 592         if (V3D_DEBUG & V3D_DEBUG_ALWAYS_FLUSH)
 593                 v3d_flush(pctx);
 594 }
 595
 596 static void
 597 v3d_clear(struct pipe_context *pctx, unsigned buffers,
 598           const union pipe_color_union *color, double depth, unsigned stencil)
 599 {
 600         struct v3d_context *v3d = v3d_context(pctx);
 601         struct v3d_job *job = v3d_get_job_for_fbo(v3d);
 602
 603         /* We can't flag new buffers for clearing once we've queued draws.  We
 604          * could avoid this by using the 3d engine to clear.
 605          */
 606         if (job->draw_calls_queued) {
 607                 perf_debug("Flushing rendering to process new clear.\n");
 608                 v3d_job_submit(v3d, job);
 609                 job = v3d_get_job_for_fbo(v3d);
 610         }
 611
 612         for (int i = 0; i < VC5_MAX_DRAW_BUFFERS; i++) {
 613                 uint32_t bit = PIPE_CLEAR_COLOR0 << i;
 614                 if (!(buffers & bit))
 615                         continue;
 616
 617                 struct pipe_surface *psurf = v3d->framebuffer.cbufs[i];
 618                 struct v3d_surface *surf = v3d_surface(psurf);
 619                 struct v3d_resource *rsc = v3d_resource(psurf->texture);
 620
 621                 union util_color uc;
 622                 uint32_t internal_size = 4 << surf->internal_bpp;
 623
 624                 static union pipe_color_union swapped_color;
 625                 if (v3d->swap_color_rb & (1 << i)) {
 626                         swapped_color.f[0] = color->f[2];
 627                         swapped_color.f[1] = color->f[1];
 628                         swapped_color.f[2] = color->f[0];
 629                         swapped_color.f[3] = color->f[3];
 630                         color = &swapped_color;
 631                 }
 632
 633                 switch (surf->internal_type) {
 634                 case V3D_INTERNAL_TYPE_8:
 635                         util_pack_color(color->f, PIPE_FORMAT_R8G8B8A8_UNORM,
 636                                         &uc);
 637                         memcpy(job->clear_color[i], uc.ui, internal_size);
 638                         break;
 639                 case V3D_INTERNAL_TYPE_8I:
 640                 case V3D_INTERNAL_TYPE_8UI:
 641                         job->clear_color[i][0] = ((color->ui[0] & 0xff) |
 642                                                   (color->ui[1] & 0xff) << 8 |
 643                                                   (color->ui[2] & 0xff) << 16 |
 644                                                   (color->ui[3] & 0xff) << 24);
 645                         break;
 646                 case V3D_INTERNAL_TYPE_16F:
 647                         util_pack_color(color->f, PIPE_FORMAT_R16G16B16A16_FLOAT,
 648                                         &uc);
 649                         memcpy(job->clear_color[i], uc.ui, internal_size);
 650                         break;
 651                 case V3D_INTERNAL_TYPE_16I:
 652                 case V3D_INTERNAL_TYPE_16UI:
 653                         job->clear_color[i][0] = ((color->ui[0] & 0xffff) |
 654                                                   color->ui[1] << 16);
 655                         job->clear_color[i][1] = ((color->ui[2] & 0xffff) |
 656                                                   color->ui[3] << 16);
 657                         break;
 658                 case V3D_INTERNAL_TYPE_32F:
 659                 case V3D_INTERNAL_TYPE_32I:
 660                 case V3D_INTERNAL_TYPE_32UI:
 661                         memcpy(job->clear_color[i], color->ui, internal_size);
 662                         break;
 663                 }
 664
 665                 rsc->initialized_buffers |= bit;
 666         }
 667
 668         unsigned zsclear = buffers & PIPE_CLEAR_DEPTHSTENCIL;
 669         if (zsclear) {
 670                 struct v3d_resource *rsc =
 671                         v3d_resource(v3d->framebuffer.zsbuf->texture);
 672
 673                 if (zsclear & PIPE_CLEAR_DEPTH)
 674                         job->clear_z = depth;
 675                 if (zsclear & PIPE_CLEAR_STENCIL)
 676                         job->clear_s = stencil;
 677
 678                 rsc->initialized_buffers |= zsclear;
 679         }
 680
 681         job->draw_min_x = 0;
 682         job->draw_min_y = 0;
 683         job->draw_max_x = v3d->framebuffer.width;
 684         job->draw_max_y = v3d->framebuffer.height;
 685         job->cleared |= buffers;
 686         job->resolve |= buffers;
 687
 688         v3d_start_draw(v3d);
 689 }
 690
 691 static void
 692 v3d_clear_render_target(struct pipe_context *pctx, struct pipe_surface *ps,
 693                         const union pipe_color_union *color,
 694                         unsigned x, unsigned y, unsigned w, unsigned h,
 695                         bool render_condition_enabled)
 696 {
 697         fprintf(stderr, "unimpl: clear RT\n");
 698 }
 699
 700 static void
 701 v3d_clear_depth_stencil(struct pipe_context *pctx, struct pipe_surface *ps,
 702                         unsigned buffers, double depth, unsigned stencil,
 703                         unsigned x, unsigned y, unsigned w, unsigned h,
 704                         bool render_condition_enabled)
 705 {
 706         fprintf(stderr, "unimpl: clear DS\n");
 707 }
 708
 709 void
 710 v3dX(draw_init)(struct pipe_context *pctx)
 711 {
 712         pctx->draw_vbo = v3d_draw_vbo;
 713         pctx->clear = v3d_clear;
 714         pctx->clear_render_target = v3d_clear_render_target;
 715         pctx->clear_depth_stencil = v3d_clear_depth_stencil;
 716 }