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_blitter.h"
  26 #include "util/u_format.h"
  27
  28 enum si_blitter_op /* bitmask */
  29 {
  30         SI_SAVE_TEXTURES      = 1,
  31         SI_SAVE_FRAMEBUFFER   = 2,
  32         SI_DISABLE_RENDER_COND = 4,
  33
  34         SI_CLEAR         = 0,
  35
  36         SI_CLEAR_SURFACE = SI_SAVE_FRAMEBUFFER,
  37
  38         SI_COPY          = SI_SAVE_FRAMEBUFFER | SI_SAVE_TEXTURES |
  39                            SI_DISABLE_RENDER_COND,
  40
  41         SI_BLIT          = SI_SAVE_FRAMEBUFFER | SI_SAVE_TEXTURES |
  42                            SI_DISABLE_RENDER_COND,
  43
  44         SI_DECOMPRESS    = SI_SAVE_FRAMEBUFFER | SI_DISABLE_RENDER_COND,
  45
  46         SI_COLOR_RESOLVE = SI_SAVE_FRAMEBUFFER | SI_DISABLE_RENDER_COND
  47 };
  48
  49 static void si_blitter_begin(struct pipe_context *ctx, enum si_blitter_op op)
  50 {
  51         struct si_context *sctx = (struct si_context *)ctx;
  52
  53         r600_suspend_nontimer_queries(&sctx->b);
  54
  55         util_blitter_save_blend(sctx->blitter, sctx->queued.named.blend);
  56         util_blitter_save_depth_stencil_alpha(sctx->blitter, sctx->queued.named.dsa);
  57         util_blitter_save_stencil_ref(sctx->blitter, &sctx->stencil_ref);
  58         util_blitter_save_rasterizer(sctx->blitter, sctx->queued.named.rasterizer);
  59         util_blitter_save_fragment_shader(sctx->blitter, sctx->ps_shader);
  60         util_blitter_save_geometry_shader(sctx->blitter, sctx->gs_shader);
  61         util_blitter_save_vertex_shader(sctx->blitter, sctx->vs_shader);
  62         util_blitter_save_vertex_elements(sctx->blitter, sctx->vertex_elements);
  63         if (sctx->queued.named.viewport) {
  64                 util_blitter_save_viewport(sctx->blitter, &sctx->queued.named.viewport->viewport);
  65         }
  66         util_blitter_save_vertex_buffer_slot(sctx->blitter, sctx->vertex_buffer);
  67         util_blitter_save_so_targets(sctx->blitter, sctx->b.streamout.num_targets,
  68                                      (struct pipe_stream_output_target**)sctx->b.streamout.targets);
  69
  70         if (op & SI_SAVE_FRAMEBUFFER)
  71                 util_blitter_save_framebuffer(sctx->blitter, &sctx->framebuffer.state);
  72
  73         if (op & SI_SAVE_TEXTURES) {
  74                 util_blitter_save_fragment_sampler_states(
  75                         sctx->blitter, sctx->samplers[PIPE_SHADER_FRAGMENT].n_samplers,
  76                         (void**)sctx->samplers[PIPE_SHADER_FRAGMENT].samplers);
  77
  78                 util_blitter_save_fragment_sampler_views(sctx->blitter,
  79                         util_last_bit(sctx->samplers[PIPE_SHADER_FRAGMENT].views.desc.enabled_mask &
  80                                       ((1 << NUM_TEX_UNITS) - 1)),
  81                         sctx->samplers[PIPE_SHADER_FRAGMENT].views.views);
  82         }
  83
  84         if ((op & SI_DISABLE_RENDER_COND) && sctx->b.current_render_cond) {
  85                 util_blitter_save_render_condition(sctx->blitter,
  86                                                    sctx->b.current_render_cond,
  87                                                    sctx->b.current_render_cond_cond,
  88                                                    sctx->b.current_render_cond_mode);
  89         }
  90 }
  91
  92 static void si_blitter_end(struct pipe_context *ctx)
  93 {
  94         struct si_context *sctx = (struct si_context *)ctx;
  95         r600_resume_nontimer_queries(&sctx->b);
  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         void **custom_dsa;
 115         struct r600_texture *flushed_depth_texture = staging ?
 116                         staging : texture->flushed_depth_texture;
 117
 118         if (!staging && !texture->dirty_level_mask)
 119                 return;
 120
 121         max_sample = u_max_sample(&texture->resource.b.b);
 122
 123         desc = util_format_description(flushed_depth_texture->resource.b.b.format);
 124         switch (util_format_has_depth(desc) | util_format_has_stencil(desc) << 1) {
 125         default:
 126                 assert(!"No depth or stencil to uncompress");
 127                 return;
 128         case 3:
 129                 custom_dsa = sctx->custom_dsa_flush_depth_stencil;
 130                 break;
 131         case 2:
 132                 custom_dsa = sctx->custom_dsa_flush_stencil;
 133                 break;
 134         case 1:
 135                 custom_dsa = sctx->custom_dsa_flush_depth;
 136                 break;
 137         }
 138
 139         for (level = first_level; level <= last_level; level++) {
 140                 if (!staging && !(texture->dirty_level_mask & (1 << level)))
 141                         continue;
 142
 143                 /* The smaller the mipmap level, the less layers there are
 144                  * as far as 3D textures are concerned. */
 145                 max_layer = util_max_layer(&texture->resource.b.b, level);
 146                 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
 147
 148                 for (layer = first_layer; layer <= checked_last_layer; layer++) {
 149                         for (sample = first_sample; sample <= last_sample; sample++) {
 150                                 struct pipe_surface *zsurf, *cbsurf, surf_tmpl;
 151
 152                                 surf_tmpl.format = texture->resource.b.b.format;
 153                                 surf_tmpl.u.tex.level = level;
 154                                 surf_tmpl.u.tex.first_layer = layer;
 155                                 surf_tmpl.u.tex.last_layer = layer;
 156
 157                                 zsurf = ctx->create_surface(ctx, &texture->resource.b.b, &surf_tmpl);
 158
 159                                 surf_tmpl.format = flushed_depth_texture->resource.b.b.format;
 160                                 cbsurf = ctx->create_surface(ctx,
 161                                                 (struct pipe_resource*)flushed_depth_texture, &surf_tmpl);
 162
 163                                 si_blitter_begin(ctx, SI_DECOMPRESS);
 164                                 util_blitter_custom_depth_stencil(sctx->blitter, zsurf, cbsurf, 1 << sample,
 165                                                                   custom_dsa[sample], depth);
 166                                 si_blitter_end(ctx);
 167
 168                                 pipe_surface_reference(&zsurf, NULL);
 169                                 pipe_surface_reference(&cbsurf, NULL);
 170                         }
 171                 }
 172
 173                 /* The texture will always be dirty if some layers aren't flushed.
 174                  * I don't think this case can occur though. */
 175                 if (!staging &&
 176                     first_layer == 0 && last_layer == max_layer &&
 177                     first_sample == 0 && last_sample == max_sample) {
 178                         texture->dirty_level_mask &= ~(1 << level);
 179                 }
 180         }
 181 }
 182
 183 static void si_blit_decompress_depth_in_place(struct si_context *sctx,
 184                                               struct r600_texture *texture,
 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
 191         surf_tmpl.format = texture->resource.b.b.format;
 192
 193         for (level = first_level; level <= last_level; level++) {
 194                 if (!(texture->dirty_level_mask & (1 << level)))
 195                         continue;
 196
 197                 surf_tmpl.u.tex.level = level;
 198
 199                 /* The smaller the mipmap level, the less layers there are
 200                  * as far as 3D textures are concerned. */
 201                 max_layer = util_max_layer(&texture->resource.b.b, level);
 202                 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
 203
 204                 for (layer = first_layer; layer <= checked_last_layer; layer++) {
 205                         surf_tmpl.u.tex.first_layer = layer;
 206                         surf_tmpl.u.tex.last_layer = layer;
 207
 208                         zsurf = sctx->b.b.create_surface(&sctx->b.b, &texture->resource.b.b, &surf_tmpl);
 209
 210                         si_blitter_begin(&sctx->b.b, SI_DECOMPRESS);
 211                         util_blitter_custom_depth_stencil(sctx->blitter, zsurf, NULL, ~0,
 212                                                           sctx->custom_dsa_flush_inplace,
 213                                                           1.0f);
 214                         si_blitter_end(&sctx->b.b);
 215
 216                         pipe_surface_reference(&zsurf, NULL);
 217                 }
 218
 219                 /* The texture will always be dirty if some layers aren't flushed.
 220                  * I don't think this case occurs often though. */
 221                 if (first_layer == 0 && last_layer == max_layer) {
 222                         texture->dirty_level_mask &= ~(1 << level);
 223                 }
 224         }
 225 }
 226
 227 void si_flush_depth_textures(struct si_context *sctx,
 228                              struct si_textures_info *textures)
 229 {
 230         unsigned i;
 231
 232         for (i = 0; i < textures->n_views; ++i) {
 233                 struct pipe_sampler_view *view;
 234                 struct r600_texture *tex;
 235
 236                 view = textures->views.views[i];
 237                 if (!view) continue;
 238
 239                 tex = (struct r600_texture *)view->texture;
 240                 if (!tex->is_depth || tex->is_flushing_texture)
 241                         continue;
 242
 243                 si_blit_decompress_depth_in_place(sctx, tex,
 244                                                   view->u.tex.first_level, view->u.tex.last_level,
 245                                                   0, util_max_layer(&tex->resource.b.b, view->u.tex.first_level));
 246         }
 247 }
 248
 249 static void si_blit_decompress_color(struct pipe_context *ctx,
 250                 struct r600_texture *rtex,
 251                 unsigned first_level, unsigned last_level,
 252                 unsigned first_layer, unsigned last_layer)
 253 {
 254         struct si_context *sctx = (struct si_context *)ctx;
 255         unsigned layer, level, checked_last_layer, max_layer;
 256
 257         if (!rtex->dirty_level_mask)
 258                 return;
 259
 260         for (level = first_level; level <= last_level; level++) {
 261                 if (!(rtex->dirty_level_mask & (1 << level)))
 262                         continue;
 263
 264                 /* The smaller the mipmap level, the less layers there are
 265                  * as far as 3D textures are concerned. */
 266                 max_layer = util_max_layer(&rtex->resource.b.b, level);
 267                 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
 268
 269                 for (layer = first_layer; layer <= checked_last_layer; layer++) {
 270                         struct pipe_surface *cbsurf, surf_tmpl;
 271
 272                         surf_tmpl.format = rtex->resource.b.b.format;
 273                         surf_tmpl.u.tex.level = level;
 274                         surf_tmpl.u.tex.first_layer = layer;
 275                         surf_tmpl.u.tex.last_layer = layer;
 276                         cbsurf = ctx->create_surface(ctx, &rtex->resource.b.b, &surf_tmpl);
 277
 278                         si_blitter_begin(ctx, SI_DECOMPRESS);
 279                         util_blitter_custom_color(sctx->blitter, cbsurf,
 280                                 rtex->fmask.size ? sctx->custom_blend_decompress :
 281                                                    sctx->custom_blend_fastclear);
 282                         si_blitter_end(ctx);
 283
 284                         pipe_surface_reference(&cbsurf, NULL);
 285                 }
 286
 287                 /* The texture will always be dirty if some layers aren't flushed.
 288                  * I don't think this case occurs often though. */
 289                 if (first_layer == 0 && last_layer == max_layer) {
 290                         rtex->dirty_level_mask &= ~(1 << level);
 291                 }
 292         }
 293 }
 294
 295 void si_decompress_color_textures(struct si_context *sctx,
 296                                   struct si_textures_info *textures)
 297 {
 298         unsigned i;
 299         unsigned mask = textures->compressed_colortex_mask;
 300
 301         while (mask) {
 302                 struct pipe_sampler_view *view;
 303                 struct r600_texture *tex;
 304
 305                 i = u_bit_scan(&mask);
 306
 307                 view = textures->views.views[i];
 308                 assert(view);
 309
 310                 tex = (struct r600_texture *)view->texture;
 311                 assert(tex->cmask.size || tex->fmask.size);
 312
 313                 si_blit_decompress_color(&sctx->b.b, tex,
 314                                          view->u.tex.first_level, view->u.tex.last_level,
 315                                          0, util_max_layer(&tex->resource.b.b, view->u.tex.first_level));
 316         }
 317 }
 318
 319 static void si_clear(struct pipe_context *ctx, unsigned buffers,
 320                      const union pipe_color_union *color,
 321                      double depth, unsigned stencil)
 322 {
 323         struct si_context *sctx = (struct si_context *)ctx;
 324         struct pipe_framebuffer_state *fb = &sctx->framebuffer.state;
 325
 326         if (buffers & PIPE_CLEAR_COLOR) {
 327                 evergreen_do_fast_color_clear(&sctx->b, fb, &sctx->framebuffer.atom,
 328                                               &buffers, color);
 329         }
 330
 331         if (buffers & PIPE_CLEAR_COLOR) {
 332                 int i;
 333
 334                 /* These buffers cannot use fast clear, make sure to disable expansion. */
 335                 for (i = 0; i < fb->nr_cbufs; i++) {
 336                         struct r600_texture *tex;
 337
 338                         /* If not clearing this buffer, skip. */
 339                         if (!(buffers & (PIPE_CLEAR_COLOR0 << i)))
 340                                 continue;
 341
 342                         if (!fb->cbufs[i])
 343                                 continue;
 344
 345                         tex = (struct r600_texture *)fb->cbufs[i]->texture;
 346                         if (tex->fmask.size == 0)
 347                                 tex->dirty_level_mask &= ~(1 << fb->cbufs[i]->u.tex.level);
 348                 }
 349         }
 350
 351         si_blitter_begin(ctx, SI_CLEAR);
 352         util_blitter_clear(sctx->blitter, fb->width, fb->height,
 353                            util_framebuffer_get_num_layers(fb),
 354                            buffers, color, depth, stencil);
 355         si_blitter_end(ctx);
 356 }
 357
 358 static void si_clear_render_target(struct pipe_context *ctx,
 359                                    struct pipe_surface *dst,
 360                                    const union pipe_color_union *color,
 361                                    unsigned dstx, unsigned dsty,
 362                                    unsigned width, unsigned height)
 363 {
 364         struct si_context *sctx = (struct si_context *)ctx;
 365
 366         si_blitter_begin(ctx, SI_CLEAR_SURFACE);
 367         util_blitter_clear_render_target(sctx->blitter, dst, color,
 368                                          dstx, dsty, width, height);
 369         si_blitter_end(ctx);
 370 }
 371
 372 static void si_clear_depth_stencil(struct pipe_context *ctx,
 373                                    struct pipe_surface *dst,
 374                                    unsigned clear_flags,
 375                                    double depth,
 376                                    unsigned stencil,
 377                                    unsigned dstx, unsigned dsty,
 378                                    unsigned width, unsigned height)
 379 {
 380         struct si_context *sctx = (struct si_context *)ctx;
 381
 382         si_blitter_begin(ctx, SI_CLEAR_SURFACE);
 383         util_blitter_clear_depth_stencil(sctx->blitter, dst, clear_flags, depth, stencil,
 384                                          dstx, dsty, width, height);
 385         si_blitter_end(ctx);
 386 }
 387
 388 /* Helper for decompressing a portion of a color or depth resource before
 389  * blitting if any decompression is needed.
 390  * The driver doesn't decompress resources automatically while u_blitter is
 391  * rendering. */
 392 static void si_decompress_subresource(struct pipe_context *ctx,
 393                                       struct pipe_resource *tex,
 394                                       unsigned level,
 395                                       unsigned first_layer, unsigned last_layer)
 396 {
 397         struct si_context *sctx = (struct si_context *)ctx;
 398         struct r600_texture *rtex = (struct r600_texture*)tex;
 399
 400         if (rtex->is_depth && !rtex->is_flushing_texture) {
 401                 si_blit_decompress_depth_in_place(sctx, rtex,
 402                                                   level, level,
 403                                                   first_layer, last_layer);
 404         } else if (rtex->fmask.size || rtex->cmask.size) {
 405                 si_blit_decompress_color(ctx, rtex, level, level,
 406                                          first_layer, last_layer);
 407         }
 408 }
 409
 410 struct texture_orig_info {
 411         unsigned format;
 412         unsigned width0;
 413         unsigned height0;
 414         unsigned npix_x;
 415         unsigned npix_y;
 416         unsigned npix0_x;
 417         unsigned npix0_y;
 418 };
 419
 420 static void si_compressed_to_blittable(struct pipe_resource *tex,
 421                                        unsigned level,
 422                                        struct texture_orig_info *orig)
 423 {
 424         struct r600_texture *rtex = (struct r600_texture*)tex;
 425         unsigned pixsize = util_format_get_blocksize(rtex->resource.b.b.format);
 426         int new_format;
 427         int new_height, new_width;
 428
 429         orig->format = tex->format;
 430         orig->width0 = tex->width0;
 431         orig->height0 = tex->height0;
 432         orig->npix0_x = rtex->surface.level[0].npix_x;
 433         orig->npix0_y = rtex->surface.level[0].npix_y;
 434         orig->npix_x = rtex->surface.level[level].npix_x;
 435         orig->npix_y = rtex->surface.level[level].npix_y;
 436
 437         if (pixsize == 8)
 438                 new_format = PIPE_FORMAT_R16G16B16A16_UINT; /* 64-bit block */
 439         else
 440                 new_format = PIPE_FORMAT_R32G32B32A32_UINT; /* 128-bit block */
 441
 442         new_width = util_format_get_nblocksx(tex->format, orig->width0);
 443         new_height = util_format_get_nblocksy(tex->format, orig->height0);
 444
 445         tex->width0 = new_width;
 446         tex->height0 = new_height;
 447         tex->format = new_format;
 448         rtex->surface.level[0].npix_x = util_format_get_nblocksx(orig->format, orig->npix0_x);
 449         rtex->surface.level[0].npix_y = util_format_get_nblocksy(orig->format, orig->npix0_y);
 450         rtex->surface.level[level].npix_x = util_format_get_nblocksx(orig->format, orig->npix_x);
 451         rtex->surface.level[level].npix_y = util_format_get_nblocksy(orig->format, orig->npix_y);
 452
 453         /* By dividing the dimensions by 4, we effectively decrement
 454          * last_level by 2, therefore the last 2 mipmap levels disappear and
 455          * aren't blittable. Note that the last 3 mipmap levels (4x4, 2x2,
 456          * 1x1) have equal slice sizes, which is an important assumption
 457          * for this to work.
 458          *
 459          * In order to make the last 2 mipmap levels blittable, we have to
 460          * add the slice size of the last mipmap level to the texture
 461          * address, so that even though the hw thinks it reads last_level-2,
 462          * it will actually read last_level-1, and if we add the slice size*2,
 463          * it will read last_level. That's how this workaround works.
 464          */
 465         if (level > rtex->resource.b.b.last_level-2)
 466                 rtex->mipmap_shift = level - (rtex->resource.b.b.last_level-2);
 467 }
 468
 469 static void si_change_format(struct pipe_resource *tex,
 470                              unsigned level,
 471                              struct texture_orig_info *orig,
 472                              enum pipe_format format)
 473 {
 474         struct r600_texture *rtex = (struct r600_texture*)tex;
 475
 476         orig->format = tex->format;
 477         orig->width0 = tex->width0;
 478         orig->height0 = tex->height0;
 479         orig->npix0_x = rtex->surface.level[0].npix_x;
 480         orig->npix0_y = rtex->surface.level[0].npix_y;
 481         orig->npix_x = rtex->surface.level[level].npix_x;
 482         orig->npix_y = rtex->surface.level[level].npix_y;
 483
 484         tex->format = format;
 485 }
 486
 487 static void si_reset_blittable_to_orig(struct pipe_resource *tex,
 488                                        unsigned level,
 489                                        struct texture_orig_info *orig)
 490 {
 491         struct r600_texture *rtex = (struct r600_texture*)tex;
 492
 493         tex->format = orig->format;
 494         tex->width0 = orig->width0;
 495         tex->height0 = orig->height0;
 496         rtex->surface.level[0].npix_x = orig->npix0_x;
 497         rtex->surface.level[0].npix_y = orig->npix0_y;
 498         rtex->surface.level[level].npix_x = orig->npix_x;
 499         rtex->surface.level[level].npix_y = orig->npix_y;
 500         rtex->mipmap_shift = 0;
 501 }
 502
 503 static void si_resource_copy_region(struct pipe_context *ctx,
 504                                     struct pipe_resource *dst,
 505                                     unsigned dst_level,
 506                                     unsigned dstx, unsigned dsty, unsigned dstz,
 507                                     struct pipe_resource *src,
 508                                     unsigned src_level,
 509                                     const struct pipe_box *src_box)
 510 {
 511         struct si_context *sctx = (struct si_context *)ctx;
 512         struct r600_texture *rdst = (struct r600_texture*)dst;
 513         struct pipe_surface *dst_view, dst_templ;
 514         struct pipe_sampler_view src_templ, *src_view;
 515         struct texture_orig_info orig_info[2];
 516         struct pipe_box sbox, dstbox;
 517         boolean restore_orig[2];
 518
 519         /* Fallback for buffers. */
 520         if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
 521                 si_copy_buffer(sctx, dst, src, dstx, src_box->x, src_box->width);
 522                 return;
 523         }
 524
 525         memset(orig_info, 0, sizeof(orig_info));
 526
 527         /* The driver doesn't decompress resources automatically while
 528          * u_blitter is rendering. */
 529         si_decompress_subresource(ctx, src, src_level,
 530                                   src_box->z, src_box->z + src_box->depth - 1);
 531
 532         restore_orig[0] = restore_orig[1] = FALSE;
 533
 534         if (util_format_is_compressed(src->format) &&
 535             util_format_is_compressed(dst->format)) {
 536                 si_compressed_to_blittable(src, src_level, &orig_info[0]);
 537                 restore_orig[0] = TRUE;
 538                 sbox.x = util_format_get_nblocksx(orig_info[0].format, src_box->x);
 539                 sbox.y = util_format_get_nblocksy(orig_info[0].format, src_box->y);
 540                 sbox.z = src_box->z;
 541                 sbox.width = util_format_get_nblocksx(orig_info[0].format, src_box->width);
 542                 sbox.height = util_format_get_nblocksy(orig_info[0].format, src_box->height);
 543                 sbox.depth = src_box->depth;
 544                 src_box = &sbox;
 545
 546                 si_compressed_to_blittable(dst, dst_level, &orig_info[1]);
 547                 restore_orig[1] = TRUE;
 548                 /* translate the dst box as well */
 549                 dstx = util_format_get_nblocksx(orig_info[1].format, dstx);
 550                 dsty = util_format_get_nblocksy(orig_info[1].format, dsty);
 551         } else if (!util_blitter_is_copy_supported(sctx->blitter, dst, src)) {
 552                 unsigned blocksize = util_format_get_blocksize(src->format);
 553
 554                 switch (blocksize) {
 555                 case 1:
 556                         si_change_format(src, src_level, &orig_info[0],
 557                                          PIPE_FORMAT_R8_UNORM);
 558                         si_change_format(dst, dst_level, &orig_info[1],
 559                                          PIPE_FORMAT_R8_UNORM);
 560                         break;
 561                 case 2:
 562                         si_change_format(src, src_level, &orig_info[0],
 563                                          PIPE_FORMAT_R8G8_UNORM);
 564                         si_change_format(dst, dst_level, &orig_info[1],
 565                                          PIPE_FORMAT_R8G8_UNORM);
 566                         break;
 567                 case 4:
 568                         si_change_format(src, src_level, &orig_info[0],
 569                                          PIPE_FORMAT_R8G8B8A8_UNORM);
 570                         si_change_format(dst, dst_level, &orig_info[1],
 571                                          PIPE_FORMAT_R8G8B8A8_UNORM);
 572                         break;
 573                 case 8:
 574                         si_change_format(src, src_level, &orig_info[0],
 575                                          PIPE_FORMAT_R16G16B16A16_UINT);
 576                         si_change_format(dst, dst_level, &orig_info[1],
 577                                          PIPE_FORMAT_R16G16B16A16_UINT);
 578                         break;
 579                 case 16:
 580                         si_change_format(src, src_level, &orig_info[0],
 581                                          PIPE_FORMAT_R32G32B32A32_UINT);
 582                         si_change_format(dst, dst_level, &orig_info[1],
 583                                          PIPE_FORMAT_R32G32B32A32_UINT);
 584                         break;
 585                 default:
 586                         fprintf(stderr, "Unhandled format %s with blocksize %u\n",
 587                                 util_format_short_name(src->format), blocksize);
 588                         assert(0);
 589                 }
 590                 restore_orig[0] = TRUE;
 591                 restore_orig[1] = TRUE;
 592         }
 593
 594         /* Initialize the surface. */
 595         util_blitter_default_dst_texture(&dst_templ, dst, dst_level, dstz);
 596         dst_view = r600_create_surface_custom(ctx, dst, &dst_templ,
 597                                               rdst->surface.level[dst_level].npix_x,
 598                                               rdst->surface.level[dst_level].npix_y);
 599
 600         /* Initialize the sampler view. */
 601         util_blitter_default_src_texture(&src_templ, src, src_level);
 602         src_view = ctx->create_sampler_view(ctx, src, &src_templ);
 603
 604         u_box_3d(dstx, dsty, dstz, abs(src_box->width), abs(src_box->height),
 605                  abs(src_box->depth), &dstbox);
 606
 607         /* Copy. */
 608         si_blitter_begin(ctx, SI_COPY);
 609         util_blitter_blit_generic(sctx->blitter, dst_view, &dstbox,
 610                                   src_view, src_box, src->width0, src->height0,
 611                                   PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL);
 612         si_blitter_end(ctx);
 613
 614         pipe_surface_reference(&dst_view, NULL);
 615         pipe_sampler_view_reference(&src_view, NULL);
 616
 617         if (restore_orig[0])
 618                 si_reset_blittable_to_orig(src, src_level, &orig_info[0]);
 619
 620         if (restore_orig[1])
 621                 si_reset_blittable_to_orig(dst, dst_level, &orig_info[1]);
 622 }
 623
 624 /* For MSAA integer resolving to work, we change the format to NORM using this function. */
 625 static enum pipe_format int_to_norm_format(enum pipe_format format)
 626 {
 627         switch (format) {
 628 #define REPLACE_FORMAT_SIGN(format,sign) \
 629         case PIPE_FORMAT_##format##_##sign##INT: \
 630                 return PIPE_FORMAT_##format##_##sign##NORM
 631 #define REPLACE_FORMAT(format) \
 632                 REPLACE_FORMAT_SIGN(format, U); \
 633                 REPLACE_FORMAT_SIGN(format, S)
 634
 635         REPLACE_FORMAT_SIGN(B10G10R10A2, U);
 636         REPLACE_FORMAT(R8);
 637         REPLACE_FORMAT(R8G8);
 638         REPLACE_FORMAT(R8G8B8X8);
 639         REPLACE_FORMAT(R8G8B8A8);
 640         REPLACE_FORMAT(A8);
 641         REPLACE_FORMAT(I8);
 642         REPLACE_FORMAT(L8);
 643         REPLACE_FORMAT(L8A8);
 644         REPLACE_FORMAT(R16);
 645         REPLACE_FORMAT(R16G16);
 646         REPLACE_FORMAT(R16G16B16X16);
 647         REPLACE_FORMAT(R16G16B16A16);
 648         REPLACE_FORMAT(A16);
 649         REPLACE_FORMAT(I16);
 650         REPLACE_FORMAT(L16);
 651         REPLACE_FORMAT(L16A16);
 652
 653 #undef REPLACE_FORMAT
 654 #undef REPLACE_FORMAT_SIGN
 655         default:
 656                 return format;
 657         }
 658 }
 659
 660 static bool do_hardware_msaa_resolve(struct pipe_context *ctx,
 661                                      const struct pipe_blit_info *info)
 662 {
 663         struct si_context *sctx = (struct si_context*)ctx;
 664         struct r600_texture *dst = (struct r600_texture*)info->dst.resource;
 665         unsigned dst_width = u_minify(info->dst.resource->width0, info->dst.level);
 666         unsigned dst_height = u_minify(info->dst.resource->height0, info->dst.level);
 667         enum pipe_format format = int_to_norm_format(info->dst.format);
 668         unsigned sample_mask = ~0;
 669
 670         if (info->src.resource->nr_samples > 1 &&
 671             info->dst.resource->nr_samples <= 1 &&
 672             util_max_layer(info->src.resource, 0) == 0 &&
 673             util_max_layer(info->dst.resource, info->dst.level) == 0 &&
 674             info->dst.format == info->src.format &&
 675             !util_format_is_pure_integer(format) &&
 676             !util_format_is_depth_or_stencil(format) &&
 677             !info->scissor_enable &&
 678             (info->mask & PIPE_MASK_RGBA) == PIPE_MASK_RGBA &&
 679             dst_width == info->src.resource->width0 &&
 680             dst_height == info->src.resource->height0 &&
 681             info->dst.box.x == 0 &&
 682             info->dst.box.y == 0 &&
 683             info->dst.box.width == dst_width &&
 684             info->dst.box.height == dst_height &&
 685             info->dst.box.depth == 1 &&
 686             info->src.box.x == 0 &&
 687             info->src.box.y == 0 &&
 688             info->src.box.width == dst_width &&
 689             info->src.box.height == dst_height &&
 690             info->src.box.depth == 1 &&
 691             dst->surface.level[info->dst.level].mode >= RADEON_SURF_MODE_1D &&
 692             !(dst->surface.flags & RADEON_SURF_SCANOUT)) {
 693                 si_blitter_begin(ctx, SI_COLOR_RESOLVE);
 694                 util_blitter_custom_resolve_color(sctx->blitter,
 695                                                   info->dst.resource, info->dst.level,
 696                                                   info->dst.box.z,
 697                                                   info->src.resource, info->src.box.z,
 698                                                   sample_mask, sctx->custom_blend_resolve,
 699                                                   format);
 700                 si_blitter_end(ctx);
 701                 return true;
 702         }
 703         return false;
 704 }
 705
 706 static void si_blit(struct pipe_context *ctx,
 707                     const struct pipe_blit_info *info)
 708 {
 709         struct si_context *sctx = (struct si_context*)ctx;
 710
 711         if (do_hardware_msaa_resolve(ctx, info)) {
 712                 return;
 713         }
 714
 715         assert(util_blitter_is_blit_supported(sctx->blitter, info));
 716
 717         /* The driver doesn't decompress resources automatically while
 718          * u_blitter is rendering. */
 719         si_decompress_subresource(ctx, info->src.resource, info->src.level,
 720                                   info->src.box.z,
 721                                   info->src.box.z + info->src.box.depth - 1);
 722
 723         si_blitter_begin(ctx, SI_BLIT);
 724         util_blitter_blit(sctx->blitter, info);
 725         si_blitter_end(ctx);
 726 }
 727
 728 static void si_flush_resource(struct pipe_context *ctx,
 729                               struct pipe_resource *res)
 730 {
 731         struct r600_texture *rtex = (struct r600_texture*)res;
 732
 733         assert(res->target != PIPE_BUFFER);
 734
 735         if (!rtex->is_depth && rtex->cmask.size) {
 736                 si_blit_decompress_color(ctx, rtex, 0, res->last_level,
 737                                          0, res->array_size - 1);
 738         }
 739 }
 740
 741 void si_init_blit_functions(struct si_context *sctx)
 742 {
 743         sctx->b.b.clear = si_clear;
 744         sctx->b.b.clear_render_target = si_clear_render_target;
 745         sctx->b.b.clear_depth_stencil = si_clear_depth_stencil;
 746         sctx->b.b.resource_copy_region = si_resource_copy_region;
 747         sctx->b.b.blit = si_blit;
 748         sctx->b.b.flush_resource = si_flush_resource;
 749         sctx->b.blit_decompress_depth = si_blit_decompress_depth;
 750 }