src/gallium/drivers/radeonsi/si_blit.c

   1 /*
   2  * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
   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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 #include "si_pipe.h"
  25 #include "util/u_format.h"
  26 #include "util/u_surface.h"
  27
  28 enum si_blitter_op /* bitmask */
  29 {
  30         SI_SAVE_TEXTURES      = 1,
  31         SI_SAVE_FRAMEBUFFER   = 2,
  32         SI_SAVE_FRAGMENT_STATE = 4,
  33         SI_DISABLE_RENDER_COND = 8,
  34
  35         SI_CLEAR         = SI_SAVE_FRAGMENT_STATE,
  36
  37         SI_CLEAR_SURFACE = SI_SAVE_FRAMEBUFFER | SI_SAVE_FRAGMENT_STATE,
  38
  39         SI_COPY          = SI_SAVE_FRAMEBUFFER | SI_SAVE_TEXTURES |
  40                            SI_SAVE_FRAGMENT_STATE | SI_DISABLE_RENDER_COND,
  41
  42         SI_BLIT          = SI_SAVE_FRAMEBUFFER | SI_SAVE_TEXTURES |
  43                            SI_SAVE_FRAGMENT_STATE,
  44
  45         SI_DECOMPRESS    = SI_SAVE_FRAMEBUFFER | SI_SAVE_FRAGMENT_STATE |
  46                            SI_DISABLE_RENDER_COND,
  47
  48         SI_COLOR_RESOLVE = SI_SAVE_FRAMEBUFFER | SI_SAVE_FRAGMENT_STATE
  49 };
  50
  51 static void si_blitter_begin(struct pipe_context *ctx, enum si_blitter_op op)
  52 {
  53         struct si_context *sctx = (struct si_context *)ctx;
  54
  55         util_blitter_save_vertex_buffer_slot(sctx->blitter, sctx->vertex_buffer);
  56         util_blitter_save_vertex_elements(sctx->blitter, sctx->vertex_elements);
  57         util_blitter_save_vertex_shader(sctx->blitter, sctx->vs_shader.cso);
  58         util_blitter_save_tessctrl_shader(sctx->blitter, sctx->tcs_shader.cso);
  59         util_blitter_save_tesseval_shader(sctx->blitter, sctx->tes_shader.cso);
  60         util_blitter_save_geometry_shader(sctx->blitter, sctx->gs_shader.cso);
  61         util_blitter_save_so_targets(sctx->blitter, sctx->b.streamout.num_targets,
  62                                      (struct pipe_stream_output_target**)sctx->b.streamout.targets);
  63         util_blitter_save_rasterizer(sctx->blitter, sctx->queued.named.rasterizer);
  64
  65         if (op & SI_SAVE_FRAGMENT_STATE) {
  66                 util_blitter_save_blend(sctx->blitter, sctx->queued.named.blend);
  67                 util_blitter_save_depth_stencil_alpha(sctx->blitter, sctx->queued.named.dsa);
  68                 util_blitter_save_stencil_ref(sctx->blitter, &sctx->stencil_ref.state);
  69                 util_blitter_save_fragment_shader(sctx->blitter, sctx->ps_shader.cso);
  70                 util_blitter_save_sample_mask(sctx->blitter, sctx->sample_mask.sample_mask);
  71                 util_blitter_save_viewport(sctx->blitter, &sctx->b.viewports.states[0]);
  72                 util_blitter_save_scissor(sctx->blitter, &sctx->b.scissors.states[0]);
  73         }
  74
  75         if (op & SI_SAVE_FRAMEBUFFER)
  76                 util_blitter_save_framebuffer(sctx->blitter, &sctx->framebuffer.state);
  77
  78         if (op & SI_SAVE_TEXTURES) {
  79                 util_blitter_save_fragment_sampler_states(
  80                         sctx->blitter, 2,
  81                         sctx->samplers[PIPE_SHADER_FRAGMENT].views.sampler_states);
  82
  83                 util_blitter_save_fragment_sampler_views(sctx->blitter, 2,
  84                         sctx->samplers[PIPE_SHADER_FRAGMENT].views.views);
  85         }
  86
  87         if (op & SI_DISABLE_RENDER_COND)
  88                 sctx->b.render_cond_force_off = true;
  89 }
  90
  91 static void si_blitter_end(struct pipe_context *ctx)
  92 {
  93         struct si_context *sctx = (struct si_context *)ctx;
  94
  95         sctx->b.render_cond_force_off = false;
  96 }
  97
  98 static unsigned u_max_sample(struct pipe_resource *r)
  99 {
 100         return r->nr_samples ? r->nr_samples - 1 : 0;
 101 }
 102
 103 static void si_blit_decompress_depth(struct pipe_context *ctx,
 104                                      struct r600_texture *texture,
 105                                      struct r600_texture *staging,
 106                                      unsigned first_level, unsigned last_level,
 107                                      unsigned first_layer, unsigned last_layer,
 108                                      unsigned first_sample, unsigned last_sample)
 109 {
 110         struct si_context *sctx = (struct si_context *)ctx;
 111         unsigned layer, level, sample, checked_last_layer, max_layer, max_sample;
 112         float depth = 1.0f;
 113         const struct util_format_description *desc;
 114         struct r600_texture *flushed_depth_texture = staging ?
 115                         staging : texture->flushed_depth_texture;
 116
 117         if (!staging && !texture->dirty_level_mask)
 118                 return;
 119
 120         max_sample = u_max_sample(&texture->resource.b.b);
 121
 122         desc = util_format_description(flushed_depth_texture->resource.b.b.format);
 123
 124         if (util_format_has_depth(desc))
 125                 sctx->dbcb_depth_copy_enabled = true;
 126         if (util_format_has_stencil(desc))
 127                 sctx->dbcb_stencil_copy_enabled = true;
 128
 129         assert(sctx->dbcb_depth_copy_enabled || sctx->dbcb_stencil_copy_enabled);
 130
 131         for (level = first_level; level <= last_level; level++) {
 132                 if (!staging && !(texture->dirty_level_mask & (1 << level)))
 133                         continue;
 134
 135                 /* The smaller the mipmap level, the less layers there are
 136                  * as far as 3D textures are concerned. */
 137                 max_layer = util_max_layer(&texture->resource.b.b, level);
 138                 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
 139
 140                 for (layer = first_layer; layer <= checked_last_layer; layer++) {
 141                         for (sample = first_sample; sample <= last_sample; sample++) {
 142                                 struct pipe_surface *zsurf, *cbsurf, surf_tmpl;
 143
 144                                 sctx->dbcb_copy_sample = sample;
 145                                 si_mark_atom_dirty(sctx, &sctx->db_render_state);
 146
 147                                 surf_tmpl.format = texture->resource.b.b.format;
 148                                 surf_tmpl.u.tex.level = level;
 149                                 surf_tmpl.u.tex.first_layer = layer;
 150                                 surf_tmpl.u.tex.last_layer = layer;
 151
 152                                 zsurf = ctx->create_surface(ctx, &texture->resource.b.b, &surf_tmpl);
 153
 154                                 surf_tmpl.format = flushed_depth_texture->resource.b.b.format;
 155                                 cbsurf = ctx->create_surface(ctx,
 156                                                 (struct pipe_resource*)flushed_depth_texture, &surf_tmpl);
 157
 158                                 si_blitter_begin(ctx, SI_DECOMPRESS);
 159                                 util_blitter_custom_depth_stencil(sctx->blitter, zsurf, cbsurf, 1 << sample,
 160                                                                   sctx->custom_dsa_flush, depth);
 161                                 si_blitter_end(ctx);
 162
 163                                 pipe_surface_reference(&zsurf, NULL);
 164                                 pipe_surface_reference(&cbsurf, NULL);
 165                         }
 166                 }
 167
 168                 /* The texture will always be dirty if some layers aren't flushed.
 169                  * I don't think this case can occur though. */
 170                 if (!staging &&
 171                     first_layer == 0 && last_layer == max_layer &&
 172                     first_sample == 0 && last_sample == max_sample) {
 173                         texture->dirty_level_mask &= ~(1 << level);
 174                 }
 175         }
 176
 177         sctx->dbcb_depth_copy_enabled = false;
 178         sctx->dbcb_stencil_copy_enabled = false;
 179         si_mark_atom_dirty(sctx, &sctx->db_render_state);
 180 }
 181
 182 static void si_blit_decompress_depth_in_place(struct si_context *sctx,
 183                                               struct r600_texture *texture,
 184                                               bool is_stencil_sampler,
 185                                               unsigned first_level, unsigned last_level,
 186                                               unsigned first_layer, unsigned last_layer)
 187 {
 188         struct pipe_surface *zsurf, surf_tmpl = {{0}};
 189         unsigned layer, max_layer, checked_last_layer, level;
 190         unsigned *dirty_level_mask;
 191
 192         if (is_stencil_sampler) {
 193                 sctx->db_flush_stencil_inplace = true;
 194                 dirty_level_mask = &texture->stencil_dirty_level_mask;
 195         } else {
 196                 sctx->db_flush_depth_inplace = true;
 197                 dirty_level_mask = &texture->dirty_level_mask;
 198         }
 199         si_mark_atom_dirty(sctx, &sctx->db_render_state);
 200
 201         surf_tmpl.format = texture->resource.b.b.format;
 202
 203         for (level = first_level; level <= last_level; level++) {
 204                 if (!(*dirty_level_mask & (1 << level)))
 205                         continue;
 206
 207                 surf_tmpl.u.tex.level = level;
 208
 209                 /* The smaller the mipmap level, the less layers there are
 210                  * as far as 3D textures are concerned. */
 211                 max_layer = util_max_layer(&texture->resource.b.b, level);
 212                 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
 213
 214                 for (layer = first_layer; layer <= checked_last_layer; layer++) {
 215                         surf_tmpl.u.tex.first_layer = layer;
 216                         surf_tmpl.u.tex.last_layer = layer;
 217
 218                         zsurf = sctx->b.b.create_surface(&sctx->b.b, &texture->resource.b.b, &surf_tmpl);
 219
 220                         si_blitter_begin(&sctx->b.b, SI_DECOMPRESS);
 221                         util_blitter_custom_depth_stencil(sctx->blitter, zsurf, NULL, ~0,
 222                                                           sctx->custom_dsa_flush,
 223                                                           1.0f);
 224                         si_blitter_end(&sctx->b.b);
 225
 226                         pipe_surface_reference(&zsurf, NULL);
 227                 }
 228
 229                 /* The texture will always be dirty if some layers aren't flushed.
 230                  * I don't think this case occurs often though. */
 231                 if (first_layer == 0 && last_layer == max_layer) {
 232                         *dirty_level_mask &= ~(1 << level);
 233                 }
 234         }
 235
 236         sctx->db_flush_depth_inplace = false;
 237         sctx->db_flush_stencil_inplace = false;
 238         si_mark_atom_dirty(sctx, &sctx->db_render_state);
 239 }
 240
 241 static void
 242 si_flush_depth_textures(struct si_context *sctx,
 243                         struct si_textures_info *textures)
 244 {
 245         unsigned i;
 246         uint64_t mask = textures->depth_texture_mask;
 247
 248         while (mask) {
 249                 struct pipe_sampler_view *view;
 250                 struct si_sampler_view *sview;
 251                 struct r600_texture *tex;
 252
 253                 i = u_bit_scan64(&mask);
 254
 255                 view = textures->views.views[i];
 256                 assert(view);
 257                 sview = (struct si_sampler_view*)view;
 258
 259                 tex = (struct r600_texture *)view->texture;
 260                 assert(tex->is_depth && !tex->is_flushing_texture);
 261
 262                 si_blit_decompress_depth_in_place(sctx, tex,
 263                                                   sview->is_stencil_sampler,
 264                                                   view->u.tex.first_level, view->u.tex.last_level,
 265                                                   0, util_max_layer(&tex->resource.b.b, view->u.tex.first_level));
 266         }
 267 }
 268
 269 static void si_blit_decompress_color(struct pipe_context *ctx,
 270                 struct r600_texture *rtex,
 271                 unsigned first_level, unsigned last_level,
 272                 unsigned first_layer, unsigned last_layer,
 273                 bool need_dcc_decompress)
 274 {
 275         struct si_context *sctx = (struct si_context *)ctx;
 276         unsigned layer, level, checked_last_layer, max_layer;
 277
 278         if (!rtex->dirty_level_mask && !need_dcc_decompress)
 279                 return;
 280
 281         for (level = first_level; level <= last_level; level++) {
 282                 void* custom_blend;
 283
 284                 if (!(rtex->dirty_level_mask & (1 << level)) && !need_dcc_decompress)
 285                         continue;
 286
 287                 if (rtex->dcc_offset && need_dcc_decompress) {
 288                         custom_blend = sctx->custom_blend_dcc_decompress;
 289                 } else if (rtex->fmask.size) {
 290                         custom_blend = sctx->custom_blend_decompress;
 291                 } else {
 292                         custom_blend = sctx->custom_blend_fastclear;
 293                 }
 294
 295                 /* The smaller the mipmap level, the less layers there are
 296                  * as far as 3D textures are concerned. */
 297                 max_layer = util_max_layer(&rtex->resource.b.b, level);
 298                 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
 299
 300                 for (layer = first_layer; layer <= checked_last_layer; layer++) {
 301                         struct pipe_surface *cbsurf, surf_tmpl;
 302
 303                         surf_tmpl.format = rtex->resource.b.b.format;
 304                         surf_tmpl.u.tex.level = level;
 305                         surf_tmpl.u.tex.first_layer = layer;
 306                         surf_tmpl.u.tex.last_layer = layer;
 307                         cbsurf = ctx->create_surface(ctx, &rtex->resource.b.b, &surf_tmpl);
 308
 309                         si_blitter_begin(ctx, SI_DECOMPRESS);
 310                         util_blitter_custom_color(sctx->blitter, cbsurf, custom_blend);
 311                         si_blitter_end(ctx);
 312
 313                         pipe_surface_reference(&cbsurf, NULL);
 314                 }
 315
 316                 /* The texture will always be dirty if some layers aren't flushed.
 317                  * I don't think this case occurs often though. */
 318                 if (first_layer == 0 && last_layer == max_layer) {
 319                         rtex->dirty_level_mask &= ~(1 << level);
 320                 }
 321         }
 322 }
 323
 324 static void
 325 si_decompress_sampler_color_textures(struct si_context *sctx,
 326                                      struct si_textures_info *textures)
 327 {
 328         unsigned i;
 329         uint64_t mask = textures->compressed_colortex_mask;
 330
 331         while (mask) {
 332                 struct pipe_sampler_view *view;
 333                 struct r600_texture *tex;
 334
 335                 i = u_bit_scan64(&mask);
 336
 337                 view = textures->views.views[i];
 338                 assert(view);
 339
 340                 tex = (struct r600_texture *)view->texture;
 341                 assert(tex->cmask.size || tex->fmask.size || tex->dcc_offset);
 342
 343                 si_blit_decompress_color(&sctx->b.b, tex,
 344                                          view->u.tex.first_level, view->u.tex.last_level,
 345                                          0, util_max_layer(&tex->resource.b.b, view->u.tex.first_level),
 346                                          false);
 347         }
 348 }
 349
 350 static void
 351 si_decompress_image_color_textures(struct si_context *sctx,
 352                                    struct si_images_info *images)
 353 {
 354         unsigned i;
 355         uint64_t mask = images->compressed_colortex_mask;
 356
 357         while (mask) {
 358                 const struct pipe_image_view *view;
 359                 struct r600_texture *tex;
 360
 361                 i = u_bit_scan64(&mask);
 362
 363                 view = &images->views[i];
 364                 assert(view->resource->target != PIPE_BUFFER);
 365
 366                 tex = (struct r600_texture *)view->resource;
 367                 if (!tex->cmask.size && !tex->fmask.size && !tex->dcc_offset)
 368                         continue;
 369
 370                 si_blit_decompress_color(&sctx->b.b, tex,
 371                                          view->u.tex.level, view->u.tex.level,
 372                                          0, util_max_layer(&tex->resource.b.b, view->u.tex.level),
 373                                          false);
 374         }
 375 }
 376
 377 void si_decompress_textures(struct si_context *sctx)
 378 {
 379         unsigned compressed_colortex_counter;
 380
 381         if (sctx->blitter->running)
 382                 return;
 383
 384         /* Update the compressed_colortex_mask if necessary. */
 385         compressed_colortex_counter = p_atomic_read(&sctx->screen->b.compressed_colortex_counter);
 386         if (compressed_colortex_counter != sctx->b.last_compressed_colortex_counter) {
 387                 sctx->b.last_compressed_colortex_counter = compressed_colortex_counter;
 388                 si_update_compressed_colortex_masks(sctx);
 389         }
 390
 391         /* Flush depth textures which need to be flushed. */
 392         for (int i = 0; i < SI_NUM_SHADERS; i++) {
 393                 if (sctx->samplers[i].depth_texture_mask) {
 394                         si_flush_depth_textures(sctx, &sctx->samplers[i]);
 395                 }
 396                 if (sctx->samplers[i].compressed_colortex_mask) {
 397                         si_decompress_sampler_color_textures(sctx, &sctx->samplers[i]);
 398                 }
 399                 if (sctx->images[i].compressed_colortex_mask) {
 400                         si_decompress_image_color_textures(sctx, &sctx->images[i]);
 401                 }
 402         }
 403 }
 404
 405 static void si_clear(struct pipe_context *ctx, unsigned buffers,
 406                      const union pipe_color_union *color,
 407                      double depth, unsigned stencil)
 408 {
 409         struct si_context *sctx = (struct si_context *)ctx;
 410         struct pipe_framebuffer_state *fb = &sctx->framebuffer.state;
 411         struct pipe_surface *zsbuf = fb->zsbuf;
 412         struct r600_texture *zstex =
 413                 zsbuf ? (struct r600_texture*)zsbuf->texture : NULL;
 414
 415         if (buffers & PIPE_CLEAR_COLOR) {
 416                 evergreen_do_fast_color_clear(&sctx->b, fb,
 417                                               &sctx->framebuffer.atom, &buffers,
 418                                               &sctx->framebuffer.dirty_cbufs,
 419                                               color);
 420                 if (!buffers)
 421                         return; /* all buffers have been fast cleared */
 422         }
 423
 424         if (buffers & PIPE_CLEAR_COLOR) {
 425                 int i;
 426
 427                 /* These buffers cannot use fast clear, make sure to disable expansion. */
 428                 for (i = 0; i < fb->nr_cbufs; i++) {
 429                         struct r600_texture *tex;
 430
 431                         /* If not clearing this buffer, skip. */
 432                         if (!(buffers & (PIPE_CLEAR_COLOR0 << i)))
 433                                 continue;
 434
 435                         if (!fb->cbufs[i])
 436                                 continue;
 437
 438                         tex = (struct r600_texture *)fb->cbufs[i]->texture;
 439                         if (tex->fmask.size == 0)
 440                                 tex->dirty_level_mask &= ~(1 << fb->cbufs[i]->u.tex.level);
 441                 }
 442         }
 443
 444         if (zstex && zstex->htile_buffer &&
 445             zsbuf->u.tex.level == 0 &&
 446             zsbuf->u.tex.first_layer == 0 &&
 447             zsbuf->u.tex.last_layer == util_max_layer(&zstex->resource.b.b, 0)) {
 448                 if (buffers & PIPE_CLEAR_DEPTH) {
 449                         /* Need to disable EXPCLEAR temporarily if clearing
 450                          * to a new value. */
 451                         if (zstex->depth_cleared && zstex->depth_clear_value != depth) {
 452                                 sctx->db_depth_disable_expclear = true;
 453                         }
 454
 455                         zstex->depth_clear_value = depth;
 456                         sctx->framebuffer.dirty_zsbuf = true;
 457                         si_mark_atom_dirty(sctx, &sctx->framebuffer.atom); /* updates DB_DEPTH_CLEAR */
 458                         sctx->db_depth_clear = true;
 459                         si_mark_atom_dirty(sctx, &sctx->db_render_state);
 460                 }
 461
 462                 if (buffers & PIPE_CLEAR_STENCIL) {
 463                         stencil &= 0xff;
 464
 465                         /* Need to disable EXPCLEAR temporarily if clearing
 466                          * to a new value. */
 467                         if (zstex->stencil_cleared && zstex->stencil_clear_value != stencil) {
 468                                 sctx->db_stencil_disable_expclear = true;
 469                         }
 470
 471                         zstex->stencil_clear_value = stencil;
 472                         sctx->framebuffer.dirty_zsbuf = true;
 473                         si_mark_atom_dirty(sctx, &sctx->framebuffer.atom); /* updates DB_STENCIL_CLEAR */
 474                         sctx->db_stencil_clear = true;
 475                         si_mark_atom_dirty(sctx, &sctx->db_render_state);
 476                 }
 477         }
 478
 479         si_blitter_begin(ctx, SI_CLEAR);
 480         util_blitter_clear(sctx->blitter, fb->width, fb->height,
 481                            util_framebuffer_get_num_layers(fb),
 482                            buffers, color, depth, stencil);
 483         si_blitter_end(ctx);
 484
 485         if (sctx->db_depth_clear) {
 486                 sctx->db_depth_clear = false;
 487                 sctx->db_depth_disable_expclear = false;
 488                 zstex->depth_cleared = true;
 489                 si_mark_atom_dirty(sctx, &sctx->db_render_state);
 490         }
 491
 492         if (sctx->db_stencil_clear) {
 493                 sctx->db_stencil_clear = false;
 494                 sctx->db_stencil_disable_expclear = false;
 495                 zstex->stencil_cleared = true;
 496                 si_mark_atom_dirty(sctx, &sctx->db_render_state);
 497         }
 498 }
 499
 500 static void si_clear_render_target(struct pipe_context *ctx,
 501                                    struct pipe_surface *dst,
 502                                    const union pipe_color_union *color,
 503                                    unsigned dstx, unsigned dsty,
 504                                    unsigned width, unsigned height)
 505 {
 506         struct si_context *sctx = (struct si_context *)ctx;
 507
 508         si_blitter_begin(ctx, SI_CLEAR_SURFACE);
 509         util_blitter_clear_render_target(sctx->blitter, dst, color,
 510                                          dstx, dsty, width, height);
 511         si_blitter_end(ctx);
 512 }
 513
 514 static void si_clear_depth_stencil(struct pipe_context *ctx,
 515                                    struct pipe_surface *dst,
 516                                    unsigned clear_flags,
 517                                    double depth,
 518                                    unsigned stencil,
 519                                    unsigned dstx, unsigned dsty,
 520                                    unsigned width, unsigned height)
 521 {
 522         struct si_context *sctx = (struct si_context *)ctx;
 523
 524         si_blitter_begin(ctx, SI_CLEAR_SURFACE);
 525         util_blitter_clear_depth_stencil(sctx->blitter, dst, clear_flags, depth, stencil,
 526                                          dstx, dsty, width, height);
 527         si_blitter_end(ctx);
 528 }
 529
 530 /* Helper for decompressing a portion of a color or depth resource before
 531  * blitting if any decompression is needed.
 532  * The driver doesn't decompress resources automatically while u_blitter is
 533  * rendering. */
 534 static void si_decompress_subresource(struct pipe_context *ctx,
 535                                       struct pipe_resource *tex,
 536                                       unsigned level,
 537                                       unsigned first_layer, unsigned last_layer)
 538 {
 539         struct si_context *sctx = (struct si_context *)ctx;
 540         struct r600_texture *rtex = (struct r600_texture*)tex;
 541
 542         if (rtex->is_depth && !rtex->is_flushing_texture) {
 543                 si_blit_decompress_depth_in_place(sctx, rtex, false,
 544                                                   level, level,
 545                                                   first_layer, last_layer);
 546                 if (rtex->surface.flags & RADEON_SURF_SBUFFER)
 547                         si_blit_decompress_depth_in_place(sctx, rtex, true,
 548                                                           level, level,
 549                                                           first_layer, last_layer);
 550         } else if (rtex->fmask.size || rtex->cmask.size || rtex->dcc_offset) {
 551                 si_blit_decompress_color(ctx, rtex, level, level,
 552                                          first_layer, last_layer, false);
 553         }
 554 }
 555
 556 struct texture_orig_info {
 557         unsigned format;
 558         unsigned width0;
 559         unsigned height0;
 560         unsigned npix_x;
 561         unsigned npix_y;
 562         unsigned npix0_x;
 563         unsigned npix0_y;
 564 };
 565
 566 void si_resource_copy_region(struct pipe_context *ctx,
 567                              struct pipe_resource *dst,
 568                              unsigned dst_level,
 569                              unsigned dstx, unsigned dsty, unsigned dstz,
 570                              struct pipe_resource *src,
 571                              unsigned src_level,
 572                              const struct pipe_box *src_box)
 573 {
 574         struct si_context *sctx = (struct si_context *)ctx;
 575         struct pipe_surface *dst_view, dst_templ;
 576         struct pipe_sampler_view src_templ, *src_view;
 577         unsigned dst_width, dst_height, src_width0, src_height0;
 578         unsigned src_force_level = 0;
 579         struct pipe_box sbox, dstbox;
 580
 581         /* Handle buffers first. */
 582         if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
 583                 si_copy_buffer(sctx, dst, src, dstx, src_box->x, src_box->width, false);
 584                 return;
 585         }
 586
 587         assert(u_max_sample(dst) == u_max_sample(src));
 588
 589         /* The driver doesn't decompress resources automatically while
 590          * u_blitter is rendering. */
 591         si_decompress_subresource(ctx, src, src_level,
 592                                   src_box->z, src_box->z + src_box->depth - 1);
 593
 594         dst_width = u_minify(dst->width0, dst_level);
 595         dst_height = u_minify(dst->height0, dst_level);
 596         src_width0 = src->width0;
 597         src_height0 = src->height0;
 598
 599         util_blitter_default_dst_texture(&dst_templ, dst, dst_level, dstz);
 600         util_blitter_default_src_texture(&src_templ, src, src_level);
 601
 602         if (util_format_is_compressed(src->format) ||
 603             util_format_is_compressed(dst->format)) {
 604                 unsigned blocksize = util_format_get_blocksize(src->format);
 605
 606                 if (blocksize == 8)
 607                         src_templ.format = PIPE_FORMAT_R16G16B16A16_UINT; /* 64-bit block */
 608                 else
 609                         src_templ.format = PIPE_FORMAT_R32G32B32A32_UINT; /* 128-bit block */
 610                 dst_templ.format = src_templ.format;
 611
 612                 dst_width = util_format_get_nblocksx(dst->format, dst_width);
 613                 dst_height = util_format_get_nblocksy(dst->format, dst_height);
 614                 src_width0 = util_format_get_nblocksx(src->format, src_width0);
 615                 src_height0 = util_format_get_nblocksy(src->format, src_height0);
 616
 617                 dstx = util_format_get_nblocksx(dst->format, dstx);
 618                 dsty = util_format_get_nblocksy(dst->format, dsty);
 619
 620                 sbox.x = util_format_get_nblocksx(src->format, src_box->x);
 621                 sbox.y = util_format_get_nblocksy(src->format, src_box->y);
 622                 sbox.z = src_box->z;
 623                 sbox.width = util_format_get_nblocksx(src->format, src_box->width);
 624                 sbox.height = util_format_get_nblocksy(src->format, src_box->height);
 625                 sbox.depth = src_box->depth;
 626                 src_box = &sbox;
 627
 628                 src_force_level = src_level;
 629         } else if (!util_blitter_is_copy_supported(sctx->blitter, dst, src) ||
 630                    /* also *8_SNORM has precision issues, use UNORM instead */
 631                    util_format_is_snorm8(src->format)) {
 632                 if (util_format_is_subsampled_422(src->format)) {
 633                         src_templ.format = PIPE_FORMAT_R8G8B8A8_UINT;
 634                         dst_templ.format = PIPE_FORMAT_R8G8B8A8_UINT;
 635
 636                         dst_width = util_format_get_nblocksx(dst->format, dst_width);
 637                         src_width0 = util_format_get_nblocksx(src->format, src_width0);
 638
 639                         dstx = util_format_get_nblocksx(dst->format, dstx);
 640
 641                         sbox = *src_box;
 642                         sbox.x = util_format_get_nblocksx(src->format, src_box->x);
 643                         sbox.width = util_format_get_nblocksx(src->format, src_box->width);
 644                         src_box = &sbox;
 645                 } else {
 646                         unsigned blocksize = util_format_get_blocksize(src->format);
 647
 648                         switch (blocksize) {
 649                         case 1:
 650                                 dst_templ.format = PIPE_FORMAT_R8_UNORM;
 651                                 src_templ.format = PIPE_FORMAT_R8_UNORM;
 652                                 break;
 653                         case 2:
 654                                 dst_templ.format = PIPE_FORMAT_R8G8_UNORM;
 655                                 src_templ.format = PIPE_FORMAT_R8G8_UNORM;
 656                                 break;
 657                         case 4:
 658                                 dst_templ.format = PIPE_FORMAT_R8G8B8A8_UNORM;
 659                                 src_templ.format = PIPE_FORMAT_R8G8B8A8_UNORM;
 660                                 break;
 661                         case 8:
 662                                 dst_templ.format = PIPE_FORMAT_R16G16B16A16_UINT;
 663                                 src_templ.format = PIPE_FORMAT_R16G16B16A16_UINT;
 664                                 break;
 665                         case 16:
 666                                 dst_templ.format = PIPE_FORMAT_R32G32B32A32_UINT;
 667                                 src_templ.format = PIPE_FORMAT_R32G32B32A32_UINT;
 668                                 break;
 669                         default:
 670                                 fprintf(stderr, "Unhandled format %s with blocksize %u\n",
 671                                         util_format_short_name(src->format), blocksize);
 672                                 assert(0);
 673                         }
 674                 }
 675         }
 676
 677         /* Initialize the surface. */
 678         dst_view = r600_create_surface_custom(ctx, dst, &dst_templ,
 679                                               dst_width, dst_height);
 680
 681         /* Initialize the sampler view. */
 682         src_view = si_create_sampler_view_custom(ctx, src, &src_templ,
 683                                                  src_width0, src_height0,
 684                                                  src_force_level);
 685
 686         u_box_3d(dstx, dsty, dstz, abs(src_box->width), abs(src_box->height),
 687                  abs(src_box->depth), &dstbox);
 688
 689         /* Copy. */
 690         si_blitter_begin(ctx, SI_COPY);
 691         util_blitter_blit_generic(sctx->blitter, dst_view, &dstbox,
 692                                   src_view, src_box, src_width0, src_height0,
 693                                   PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL,
 694                                   FALSE);
 695         si_blitter_end(ctx);
 696
 697         pipe_surface_reference(&dst_view, NULL);
 698         pipe_sampler_view_reference(&src_view, NULL);
 699 }
 700
 701 /* For MSAA integer resolving to work, we change the format to NORM using this function. */
 702 static enum pipe_format int_to_norm_format(enum pipe_format format)
 703 {
 704         switch (format) {
 705 #define REPLACE_FORMAT_SIGN(format,sign) \
 706         case PIPE_FORMAT_##format##_##sign##INT: \
 707                 return PIPE_FORMAT_##format##_##sign##NORM
 708 #define REPLACE_FORMAT(format) \
 709                 REPLACE_FORMAT_SIGN(format, U); \
 710                 REPLACE_FORMAT_SIGN(format, S)
 711
 712         REPLACE_FORMAT_SIGN(B10G10R10A2, U);
 713         REPLACE_FORMAT(R8);
 714         REPLACE_FORMAT(R8G8);
 715         REPLACE_FORMAT(R8G8B8X8);
 716         REPLACE_FORMAT(R8G8B8A8);
 717         REPLACE_FORMAT(A8);
 718         REPLACE_FORMAT(I8);
 719         REPLACE_FORMAT(L8);
 720         REPLACE_FORMAT(L8A8);
 721         REPLACE_FORMAT(R16);
 722         REPLACE_FORMAT(R16G16);
 723         REPLACE_FORMAT(R16G16B16X16);
 724         REPLACE_FORMAT(R16G16B16A16);
 725         REPLACE_FORMAT(A16);
 726         REPLACE_FORMAT(I16);
 727         REPLACE_FORMAT(L16);
 728         REPLACE_FORMAT(L16A16);
 729
 730 #undef REPLACE_FORMAT
 731 #undef REPLACE_FORMAT_SIGN
 732         default:
 733                 return format;
 734         }
 735 }
 736
 737 static bool do_hardware_msaa_resolve(struct pipe_context *ctx,
 738                                      const struct pipe_blit_info *info)
 739 {
 740         struct si_context *sctx = (struct si_context*)ctx;
 741         struct r600_texture *dst = (struct r600_texture*)info->dst.resource;
 742         unsigned dst_width = u_minify(info->dst.resource->width0, info->dst.level);
 743         unsigned dst_height = u_minify(info->dst.resource->height0, info->dst.level);
 744         enum pipe_format format = int_to_norm_format(info->dst.format);
 745         unsigned sample_mask = ~0;
 746
 747         /* Hardware MSAA resolve doesn't work if SPI format = NORM16_ABGR and
 748          * the format is R16G16. Use R16A16, which does work.
 749          */
 750         if (format == PIPE_FORMAT_R16G16_UNORM)
 751                 format = PIPE_FORMAT_R16A16_UNORM;
 752         if (format == PIPE_FORMAT_R16G16_SNORM)
 753                 format = PIPE_FORMAT_R16A16_SNORM;
 754
 755         if (info->src.resource->nr_samples > 1 &&
 756             info->dst.resource->nr_samples <= 1 &&
 757             util_max_layer(info->src.resource, 0) == 0 &&
 758             util_max_layer(info->dst.resource, info->dst.level) == 0 &&
 759             info->dst.format == info->src.format &&
 760             !util_format_is_pure_integer(format) &&
 761             !util_format_is_depth_or_stencil(format) &&
 762             !info->scissor_enable &&
 763             (info->mask & PIPE_MASK_RGBA) == PIPE_MASK_RGBA &&
 764             dst_width == info->src.resource->width0 &&
 765             dst_height == info->src.resource->height0 &&
 766             info->dst.box.x == 0 &&
 767             info->dst.box.y == 0 &&
 768             info->dst.box.width == dst_width &&
 769             info->dst.box.height == dst_height &&
 770             info->dst.box.depth == 1 &&
 771             info->src.box.x == 0 &&
 772             info->src.box.y == 0 &&
 773             info->src.box.width == dst_width &&
 774             info->src.box.height == dst_height &&
 775             info->src.box.depth == 1 &&
 776             dst->surface.level[info->dst.level].mode >= RADEON_SURF_MODE_1D &&
 777             !(dst->surface.flags & RADEON_SURF_SCANOUT) &&
 778             (!dst->cmask.size || !dst->dirty_level_mask) && /* dst cannot be fast-cleared */
 779             !dst->dcc_offset) {
 780                 si_blitter_begin(ctx, SI_COLOR_RESOLVE |
 781                                  (info->render_condition_enable ? 0 : SI_DISABLE_RENDER_COND));
 782                 util_blitter_custom_resolve_color(sctx->blitter,
 783                                                   info->dst.resource, info->dst.level,
 784                                                   info->dst.box.z,
 785                                                   info->src.resource, info->src.box.z,
 786                                                   sample_mask, sctx->custom_blend_resolve,
 787                                                   format);
 788                 si_blitter_end(ctx);
 789                 return true;
 790         }
 791         return false;
 792 }
 793
 794 static void si_blit(struct pipe_context *ctx,
 795                     const struct pipe_blit_info *info)
 796 {
 797         struct si_context *sctx = (struct si_context*)ctx;
 798
 799         if (do_hardware_msaa_resolve(ctx, info)) {
 800                 return;
 801         }
 802
 803         assert(util_blitter_is_blit_supported(sctx->blitter, info));
 804
 805         /* The driver doesn't decompress resources automatically while
 806          * u_blitter is rendering. */
 807         si_decompress_subresource(ctx, info->src.resource, info->src.level,
 808                                   info->src.box.z,
 809                                   info->src.box.z + info->src.box.depth - 1);
 810
 811         if (sctx->screen->b.debug_flags & DBG_FORCE_DMA &&
 812             util_try_blit_via_copy_region(ctx, info))
 813                 return;
 814
 815         si_blitter_begin(ctx, SI_BLIT |
 816                          (info->render_condition_enable ? 0 : SI_DISABLE_RENDER_COND));
 817         util_blitter_blit(sctx->blitter, info);
 818         si_blitter_end(ctx);
 819 }
 820
 821 static void si_flush_resource(struct pipe_context *ctx,
 822                               struct pipe_resource *res)
 823 {
 824         struct r600_texture *rtex = (struct r600_texture*)res;
 825
 826         assert(res->target != PIPE_BUFFER);
 827
 828         if (!rtex->is_depth && (rtex->cmask.size || rtex->dcc_offset)) {
 829                 si_blit_decompress_color(ctx, rtex, 0, res->last_level,
 830                                          0, util_max_layer(res, 0), false);
 831         }
 832 }
 833
 834 static void si_decompress_dcc(struct pipe_context *ctx,
 835                               struct r600_texture *rtex)
 836 {
 837         if (!rtex->dcc_offset)
 838                 return;
 839
 840         si_blit_decompress_color(ctx, rtex, 0, rtex->resource.b.b.last_level,
 841                                  0, util_max_layer(&rtex->resource.b.b, 0),
 842                                  true);
 843 }
 844
 845 static void si_pipe_clear_buffer(struct pipe_context *ctx,
 846                                  struct pipe_resource *dst,
 847                                  unsigned offset, unsigned size,
 848                                  const void *clear_value_ptr,
 849                                  int clear_value_size)
 850 {
 851         struct si_context *sctx = (struct si_context*)ctx;
 852         uint32_t dword_value;
 853         unsigned i;
 854
 855         assert(offset % clear_value_size == 0);
 856         assert(size % clear_value_size == 0);
 857
 858         if (clear_value_size > 4) {
 859                 const uint32_t *u32 = clear_value_ptr;
 860                 bool clear_dword_duplicated = true;
 861
 862                 /* See if we can lower large fills to dword fills. */
 863                 for (i = 1; i < clear_value_size / 4; i++)
 864                         if (u32[0] != u32[i]) {
 865                                 clear_dword_duplicated = false;
 866                                 break;
 867                         }
 868
 869                 if (!clear_dword_duplicated) {
 870                         /* Use transform feedback for 64-bit, 96-bit, and
 871                          * 128-bit fills.
 872                          */
 873                         union pipe_color_union clear_value;
 874
 875                         memcpy(&clear_value, clear_value_ptr, clear_value_size);
 876                         si_blitter_begin(ctx, SI_DISABLE_RENDER_COND);
 877                         util_blitter_clear_buffer(sctx->blitter, dst, offset,
 878                                                   size, clear_value_size / 4,
 879                                                   &clear_value);
 880                         si_blitter_end(ctx);
 881                         return;
 882                 }
 883         }
 884
 885         /* Expand the clear value to a dword. */
 886         switch (clear_value_size) {
 887         case 1:
 888                 dword_value = *(uint8_t*)clear_value_ptr;
 889                 dword_value |= (dword_value << 8) |
 890                                (dword_value << 16) |
 891                                (dword_value << 24);
 892                 break;
 893         case 2:
 894                 dword_value = *(uint16_t*)clear_value_ptr;
 895                 dword_value |= dword_value << 16;
 896                 break;
 897         default:
 898                 dword_value = *(uint32_t*)clear_value_ptr;
 899         }
 900
 901         sctx->b.clear_buffer(ctx, dst, offset, size, dword_value, false);
 902 }
 903
 904 void si_init_blit_functions(struct si_context *sctx)
 905 {
 906         sctx->b.b.clear = si_clear;
 907         sctx->b.b.clear_buffer = si_pipe_clear_buffer;
 908         sctx->b.b.clear_render_target = si_clear_render_target;
 909         sctx->b.b.clear_depth_stencil = si_clear_depth_stencil;
 910         sctx->b.b.resource_copy_region = si_resource_copy_region;
 911         sctx->b.b.blit = si_blit;
 912         sctx->b.b.flush_resource = si_flush_resource;
 913         sctx->b.blit_decompress_depth = si_blit_decompress_depth;
 914         sctx->b.decompress_dcc = si_decompress_dcc;
 915 }