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_vertex_shader(sctx->blitter, sctx->vs_shader);
  61         util_blitter_save_vertex_elements(sctx->blitter, sctx->vertex_elements);
  62         if (sctx->queued.named.viewport) {
  63                 util_blitter_save_viewport(sctx->blitter, &sctx->queued.named.viewport->viewport);
  64         }
  65         util_blitter_save_vertex_buffer_slot(sctx->blitter, sctx->vertex_buffer);
  66         util_blitter_save_so_targets(sctx->blitter, sctx->b.streamout.num_targets,
  67                                      (struct pipe_stream_output_target**)sctx->b.streamout.targets);
  68
  69         if (op & SI_SAVE_FRAMEBUFFER)
  70                 util_blitter_save_framebuffer(sctx->blitter, &sctx->framebuffer);
  71
  72         if (op & SI_SAVE_TEXTURES) {
  73                 util_blitter_save_fragment_sampler_states(
  74                         sctx->blitter, sctx->samplers[PIPE_SHADER_FRAGMENT].n_samplers,
  75                         (void**)sctx->samplers[PIPE_SHADER_FRAGMENT].samplers);
  76
  77                 util_blitter_save_fragment_sampler_views(sctx->blitter,
  78                         util_last_bit(sctx->samplers[PIPE_SHADER_FRAGMENT].views.desc.enabled_mask &
  79                                       ((1 << NUM_TEX_UNITS) - 1)),
  80                         sctx->samplers[PIPE_SHADER_FRAGMENT].views.views);
  81         }
  82
  83         if ((op & SI_DISABLE_RENDER_COND) && sctx->b.current_render_cond) {
  84                 util_blitter_save_render_condition(sctx->blitter,
  85                                                    sctx->b.current_render_cond,
  86                                                    sctx->b.current_render_cond_cond,
  87                                                    sctx->b.current_render_cond_mode);
  88         }
  89 }
  90
  91 static void si_blitter_end(struct pipe_context *ctx)
  92 {
  93         struct si_context *sctx = (struct si_context *)ctx;
  94         r600_resume_nontimer_queries(&sctx->b);
  95 }
  96
  97 static unsigned u_max_sample(struct pipe_resource *r)
  98 {
  99         return r->nr_samples ? r->nr_samples - 1 : 0;
 100 }
 101
 102 static void si_blit_decompress_depth(struct pipe_context *ctx,
 103                                      struct r600_texture *texture,
 104                                      struct r600_texture *staging,
 105                                      unsigned first_level, unsigned last_level,
 106                                      unsigned first_layer, unsigned last_layer,
 107                                      unsigned first_sample, unsigned last_sample)
 108 {
 109         struct si_context *sctx = (struct si_context *)ctx;
 110         unsigned layer, level, sample, checked_last_layer, max_layer, max_sample;
 111         float depth = 1.0f;
 112         const struct util_format_description *desc;
 113         void **custom_dsa;
 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         switch (util_format_has_depth(desc) | util_format_has_stencil(desc) << 1) {
 124         default:
 125                 assert(!"No depth or stencil to uncompress");
 126                 return;
 127         case 3:
 128                 custom_dsa = sctx->custom_dsa_flush_depth_stencil;
 129                 break;
 130         case 2:
 131                 custom_dsa = sctx->custom_dsa_flush_stencil;
 132                 break;
 133         case 1:
 134                 custom_dsa = sctx->custom_dsa_flush_depth;
 135                 break;
 136         }
 137
 138         for (level = first_level; level <= last_level; level++) {
 139                 if (!staging && !(texture->dirty_level_mask & (1 << level)))
 140                         continue;
 141
 142                 /* The smaller the mipmap level, the less layers there are
 143                  * as far as 3D textures are concerned. */
 144                 max_layer = util_max_layer(&texture->resource.b.b, level);
 145                 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
 146
 147                 for (layer = first_layer; layer <= checked_last_layer; layer++) {
 148                         for (sample = first_sample; sample <= last_sample; sample++) {
 149                                 struct pipe_surface *zsurf, *cbsurf, surf_tmpl;
 150
 151                                 surf_tmpl.format = texture->resource.b.b.format;
 152                                 surf_tmpl.u.tex.level = level;
 153                                 surf_tmpl.u.tex.first_layer = layer;
 154                                 surf_tmpl.u.tex.last_layer = layer;
 155
 156                                 zsurf = ctx->create_surface(ctx, &texture->resource.b.b, &surf_tmpl);
 157
 158                                 surf_tmpl.format = flushed_depth_texture->resource.b.b.format;
 159                                 cbsurf = ctx->create_surface(ctx,
 160                                                 (struct pipe_resource*)flushed_depth_texture, &surf_tmpl);
 161
 162                                 si_blitter_begin(ctx, SI_DECOMPRESS);
 163                                 util_blitter_custom_depth_stencil(sctx->blitter, zsurf, cbsurf, 1 << sample,
 164                                                                   custom_dsa[sample], depth);
 165                                 si_blitter_end(ctx);
 166
 167                                 pipe_surface_reference(&zsurf, NULL);
 168                                 pipe_surface_reference(&cbsurf, NULL);
 169                         }
 170                 }
 171
 172                 /* The texture will always be dirty if some layers aren't flushed.
 173                  * I don't think this case can occur though. */
 174                 if (!staging &&
 175                     first_layer == 0 && last_layer == max_layer &&
 176                     first_sample == 0 && last_sample == max_sample) {
 177                         texture->dirty_level_mask &= ~(1 << level);
 178                 }
 179         }
 180 }
 181
 182 static void si_blit_decompress_depth_in_place(struct si_context *sctx,
 183                                               struct r600_texture *texture,
 184                                               unsigned first_level, unsigned last_level,
 185                                               unsigned first_layer, unsigned last_layer)
 186 {
 187         struct pipe_surface *zsurf, surf_tmpl = {{0}};
 188         unsigned layer, max_layer, checked_last_layer, level;
 189
 190         surf_tmpl.format = texture->resource.b.b.format;
 191
 192         for (level = first_level; level <= last_level; level++) {
 193                 if (!(texture->dirty_level_mask & (1 << level)))
 194                         continue;
 195
 196                 surf_tmpl.u.tex.level = level;
 197
 198                 /* The smaller the mipmap level, the less layers there are
 199                  * as far as 3D textures are concerned. */
 200                 max_layer = util_max_layer(&texture->resource.b.b, level);
 201                 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
 202
 203                 for (layer = first_layer; layer <= checked_last_layer; layer++) {
 204                         surf_tmpl.u.tex.first_layer = layer;
 205                         surf_tmpl.u.tex.last_layer = layer;
 206
 207                         zsurf = sctx->b.b.create_surface(&sctx->b.b, &texture->resource.b.b, &surf_tmpl);
 208
 209                         si_blitter_begin(&sctx->b.b, SI_DECOMPRESS);
 210                         util_blitter_custom_depth_stencil(sctx->blitter, zsurf, NULL, ~0,
 211                                                           sctx->custom_dsa_flush_inplace,
 212                                                           1.0f);
 213                         si_blitter_end(&sctx->b.b);
 214
 215                         pipe_surface_reference(&zsurf, NULL);
 216                 }
 217
 218                 /* The texture will always be dirty if some layers aren't flushed.
 219                  * I don't think this case occurs often though. */
 220                 if (first_layer == 0 && last_layer == max_layer) {
 221                         texture->dirty_level_mask &= ~(1 << level);
 222                 }
 223         }
 224 }
 225
 226 void si_flush_depth_textures(struct si_context *sctx,
 227                              struct si_textures_info *textures)
 228 {
 229         unsigned i;
 230
 231         for (i = 0; i < textures->n_views; ++i) {
 232                 struct pipe_sampler_view *view;
 233                 struct r600_texture *tex;
 234
 235                 view = textures->views.views[i];
 236                 if (!view) continue;
 237
 238                 tex = (struct r600_texture *)view->texture;
 239                 if (!tex->is_depth || tex->is_flushing_texture)
 240                         continue;
 241
 242                 si_blit_decompress_depth_in_place(sctx, tex,
 243                                                   view->u.tex.first_level, view->u.tex.last_level,
 244                                                   0, util_max_layer(&tex->resource.b.b, view->u.tex.first_level));
 245         }
 246 }
 247
 248 static void si_blit_decompress_color(struct pipe_context *ctx,
 249                 struct r600_texture *rtex,
 250                 unsigned first_level, unsigned last_level,
 251                 unsigned first_layer, unsigned last_layer)
 252 {
 253         struct si_context *sctx = (struct si_context *)ctx;
 254         unsigned layer, level, checked_last_layer, max_layer;
 255
 256         if (!rtex->dirty_level_mask)
 257                 return;
 258
 259         for (level = first_level; level <= last_level; level++) {
 260                 if (!(rtex->dirty_level_mask & (1 << level)))
 261                         continue;
 262
 263                 /* The smaller the mipmap level, the less layers there are
 264                  * as far as 3D textures are concerned. */
 265                 max_layer = util_max_layer(&rtex->resource.b.b, level);
 266                 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
 267
 268                 for (layer = first_layer; layer <= checked_last_layer; layer++) {
 269                         struct pipe_surface *cbsurf, surf_tmpl;
 270
 271                         surf_tmpl.format = rtex->resource.b.b.format;
 272                         surf_tmpl.u.tex.level = level;
 273                         surf_tmpl.u.tex.first_layer = layer;
 274                         surf_tmpl.u.tex.last_layer = layer;
 275                         cbsurf = ctx->create_surface(ctx, &rtex->resource.b.b, &surf_tmpl);
 276
 277                         si_blitter_begin(ctx, SI_DECOMPRESS);
 278                         util_blitter_custom_color(sctx->blitter, cbsurf,
 279                                                   sctx->custom_blend_decompress);
 280                         si_blitter_end(ctx);
 281
 282                         pipe_surface_reference(&cbsurf, NULL);
 283                 }
 284
 285                 /* The texture will always be dirty if some layers aren't flushed.
 286                  * I don't think this case occurs often though. */
 287                 if (first_layer == 0 && last_layer == max_layer) {
 288                         rtex->dirty_level_mask &= ~(1 << level);
 289                 }
 290         }
 291 }
 292
 293 void si_decompress_color_textures(struct si_context *sctx,
 294                                   struct si_textures_info *textures)
 295 {
 296         unsigned i;
 297         unsigned mask = textures->compressed_colortex_mask;
 298
 299         while (mask) {
 300                 struct pipe_sampler_view *view;
 301                 struct r600_texture *tex;
 302
 303                 i = u_bit_scan(&mask);
 304
 305                 view = textures->views.views[i];
 306                 assert(view);
 307
 308                 tex = (struct r600_texture *)view->texture;
 309                 assert(tex->cmask.size || tex->fmask.size);
 310
 311                 si_blit_decompress_color(&sctx->b.b, tex,
 312                                          view->u.tex.first_level, view->u.tex.last_level,
 313                                          0, util_max_layer(&tex->resource.b.b, view->u.tex.first_level));
 314         }
 315 }
 316
 317 static void si_clear(struct pipe_context *ctx, unsigned buffers,
 318                      const union pipe_color_union *color,
 319                      double depth, unsigned stencil)
 320 {
 321         struct si_context *sctx = (struct si_context *)ctx;
 322         struct pipe_framebuffer_state *fb = &sctx->framebuffer;
 323
 324         si_blitter_begin(ctx, SI_CLEAR);
 325         util_blitter_clear(sctx->blitter, fb->width, fb->height,
 326                            util_framebuffer_get_num_layers(fb),
 327                            buffers, color, depth, stencil);
 328         si_blitter_end(ctx);
 329 }
 330
 331 static void si_clear_render_target(struct pipe_context *ctx,
 332                                    struct pipe_surface *dst,
 333                                    const union pipe_color_union *color,
 334                                    unsigned dstx, unsigned dsty,
 335                                    unsigned width, unsigned height)
 336 {
 337         struct si_context *sctx = (struct si_context *)ctx;
 338
 339         si_blitter_begin(ctx, SI_CLEAR_SURFACE);
 340         util_blitter_clear_render_target(sctx->blitter, dst, color,
 341                                          dstx, dsty, width, height);
 342         si_blitter_end(ctx);
 343 }
 344
 345 static void si_clear_depth_stencil(struct pipe_context *ctx,
 346                                    struct pipe_surface *dst,
 347                                    unsigned clear_flags,
 348                                    double depth,
 349                                    unsigned stencil,
 350                                    unsigned dstx, unsigned dsty,
 351                                    unsigned width, unsigned height)
 352 {
 353         struct si_context *sctx = (struct si_context *)ctx;
 354
 355         si_blitter_begin(ctx, SI_CLEAR_SURFACE);
 356         util_blitter_clear_depth_stencil(sctx->blitter, dst, clear_flags, depth, stencil,
 357                                          dstx, dsty, width, height);
 358         si_blitter_end(ctx);
 359 }
 360
 361 /* Helper for decompressing a portion of a color or depth resource before
 362  * blitting if any decompression is needed.
 363  * The driver doesn't decompress resources automatically while u_blitter is
 364  * rendering. */
 365 static void si_decompress_subresource(struct pipe_context *ctx,
 366                                       struct pipe_resource *tex,
 367                                       unsigned level,
 368                                       unsigned first_layer, unsigned last_layer)
 369 {
 370         struct si_context *sctx = (struct si_context *)ctx;
 371         struct r600_texture *rtex = (struct r600_texture*)tex;
 372
 373         if (rtex->is_depth && !rtex->is_flushing_texture) {
 374                 si_blit_decompress_depth_in_place(sctx, rtex,
 375                                                   level, level,
 376                                                   first_layer, last_layer);
 377         } else if (rtex->fmask.size || rtex->cmask.size) {
 378                 si_blit_decompress_color(ctx, rtex, level, level,
 379                                          first_layer, last_layer);
 380         }
 381 }
 382
 383 struct texture_orig_info {
 384         unsigned format;
 385         unsigned width0;
 386         unsigned height0;
 387         unsigned npix_x;
 388         unsigned npix_y;
 389         unsigned npix0_x;
 390         unsigned npix0_y;
 391 };
 392
 393 static void si_compressed_to_blittable(struct pipe_resource *tex,
 394                                        unsigned level,
 395                                        struct texture_orig_info *orig)
 396 {
 397         struct r600_texture *rtex = (struct r600_texture*)tex;
 398         unsigned pixsize = util_format_get_blocksize(rtex->resource.b.b.format);
 399         int new_format;
 400         int new_height, new_width;
 401
 402         orig->format = tex->format;
 403         orig->width0 = tex->width0;
 404         orig->height0 = tex->height0;
 405         orig->npix0_x = rtex->surface.level[0].npix_x;
 406         orig->npix0_y = rtex->surface.level[0].npix_y;
 407         orig->npix_x = rtex->surface.level[level].npix_x;
 408         orig->npix_y = rtex->surface.level[level].npix_y;
 409
 410         if (pixsize == 8)
 411                 new_format = PIPE_FORMAT_R16G16B16A16_UINT; /* 64-bit block */
 412         else
 413                 new_format = PIPE_FORMAT_R32G32B32A32_UINT; /* 128-bit block */
 414
 415         new_width = util_format_get_nblocksx(tex->format, orig->width0);
 416         new_height = util_format_get_nblocksy(tex->format, orig->height0);
 417
 418         tex->width0 = new_width;
 419         tex->height0 = new_height;
 420         tex->format = new_format;
 421         rtex->surface.level[0].npix_x = util_format_get_nblocksx(orig->format, orig->npix0_x);
 422         rtex->surface.level[0].npix_y = util_format_get_nblocksy(orig->format, orig->npix0_y);
 423         rtex->surface.level[level].npix_x = util_format_get_nblocksx(orig->format, orig->npix_x);
 424         rtex->surface.level[level].npix_y = util_format_get_nblocksy(orig->format, orig->npix_y);
 425
 426         /* By dividing the dimensions by 4, we effectively decrement
 427          * last_level by 2, therefore the last 2 mipmap levels disappear and
 428          * aren't blittable. Note that the last 3 mipmap levels (4x4, 2x2,
 429          * 1x1) have equal slice sizes, which is an important assumption
 430          * for this to work.
 431          *
 432          * In order to make the last 2 mipmap levels blittable, we have to
 433          * add the slice size of the last mipmap level to the texture
 434          * address, so that even though the hw thinks it reads last_level-2,
 435          * it will actually read last_level-1, and if we add the slice size*2,
 436          * it will read last_level. That's how this workaround works.
 437          */
 438         if (level > rtex->resource.b.b.last_level-2)
 439                 rtex->mipmap_shift = level - (rtex->resource.b.b.last_level-2);
 440 }
 441
 442 static void si_change_format(struct pipe_resource *tex,
 443                              unsigned level,
 444                              struct texture_orig_info *orig,
 445                              enum pipe_format format)
 446 {
 447         struct r600_texture *rtex = (struct r600_texture*)tex;
 448
 449         orig->format = tex->format;
 450         orig->width0 = tex->width0;
 451         orig->height0 = tex->height0;
 452         orig->npix0_x = rtex->surface.level[0].npix_x;
 453         orig->npix0_y = rtex->surface.level[0].npix_y;
 454         orig->npix_x = rtex->surface.level[level].npix_x;
 455         orig->npix_y = rtex->surface.level[level].npix_y;
 456
 457         tex->format = format;
 458 }
 459
 460 static void si_reset_blittable_to_orig(struct pipe_resource *tex,
 461                                        unsigned level,
 462                                        struct texture_orig_info *orig)
 463 {
 464         struct r600_texture *rtex = (struct r600_texture*)tex;
 465
 466         tex->format = orig->format;
 467         tex->width0 = orig->width0;
 468         tex->height0 = orig->height0;
 469         rtex->surface.level[0].npix_x = orig->npix0_x;
 470         rtex->surface.level[0].npix_y = orig->npix0_y;
 471         rtex->surface.level[level].npix_x = orig->npix_x;
 472         rtex->surface.level[level].npix_y = orig->npix_y;
 473         rtex->mipmap_shift = 0;
 474 }
 475
 476 static void si_resource_copy_region(struct pipe_context *ctx,
 477                                     struct pipe_resource *dst,
 478                                     unsigned dst_level,
 479                                     unsigned dstx, unsigned dsty, unsigned dstz,
 480                                     struct pipe_resource *src,
 481                                     unsigned src_level,
 482                                     const struct pipe_box *src_box)
 483 {
 484         struct si_context *sctx = (struct si_context *)ctx;
 485         struct texture_orig_info orig_info[2];
 486         struct pipe_box sbox;
 487         const struct pipe_box *psbox = src_box;
 488         boolean restore_orig[2];
 489
 490         /* Fallback for buffers. */
 491         if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
 492                 si_copy_buffer(sctx, dst, src, dstx, src_box->x, src_box->width);
 493                 return;
 494         }
 495
 496         memset(orig_info, 0, sizeof(orig_info));
 497
 498         /* The driver doesn't decompress resources automatically while
 499          * u_blitter is rendering. */
 500         si_decompress_subresource(ctx, src, src_level,
 501                                   src_box->z, src_box->z + src_box->depth - 1);
 502
 503         restore_orig[0] = restore_orig[1] = FALSE;
 504
 505         if (util_format_is_compressed(src->format) &&
 506             util_format_is_compressed(dst->format)) {
 507                 si_compressed_to_blittable(src, src_level, &orig_info[0]);
 508                 restore_orig[0] = TRUE;
 509                 sbox.x = util_format_get_nblocksx(orig_info[0].format, src_box->x);
 510                 sbox.y = util_format_get_nblocksy(orig_info[0].format, src_box->y);
 511                 sbox.z = src_box->z;
 512                 sbox.width = util_format_get_nblocksx(orig_info[0].format, src_box->width);
 513                 sbox.height = util_format_get_nblocksy(orig_info[0].format, src_box->height);
 514                 sbox.depth = src_box->depth;
 515                 psbox=&sbox;
 516
 517                 si_compressed_to_blittable(dst, dst_level, &orig_info[1]);
 518                 restore_orig[1] = TRUE;
 519                 /* translate the dst box as well */
 520                 dstx = util_format_get_nblocksx(orig_info[1].format, dstx);
 521                 dsty = util_format_get_nblocksy(orig_info[1].format, dsty);
 522         } else if (!util_blitter_is_copy_supported(sctx->blitter, dst, src)) {
 523                 unsigned blocksize = util_format_get_blocksize(src->format);
 524
 525                 switch (blocksize) {
 526                 case 1:
 527                         si_change_format(src, src_level, &orig_info[0],
 528                                          PIPE_FORMAT_R8_UNORM);
 529                         si_change_format(dst, dst_level, &orig_info[1],
 530                                          PIPE_FORMAT_R8_UNORM);
 531                         break;
 532                 case 2:
 533                         si_change_format(src, src_level, &orig_info[0],
 534                                          PIPE_FORMAT_R8G8_UNORM);
 535                         si_change_format(dst, dst_level, &orig_info[1],
 536                                          PIPE_FORMAT_R8G8_UNORM);
 537                         break;
 538                 case 4:
 539                         si_change_format(src, src_level, &orig_info[0],
 540                                          PIPE_FORMAT_R8G8B8A8_UNORM);
 541                         si_change_format(dst, dst_level, &orig_info[1],
 542                                          PIPE_FORMAT_R8G8B8A8_UNORM);
 543                         break;
 544                 case 8:
 545                         si_change_format(src, src_level, &orig_info[0],
 546                                          PIPE_FORMAT_R16G16B16A16_UINT);
 547                         si_change_format(dst, dst_level, &orig_info[1],
 548                                          PIPE_FORMAT_R16G16B16A16_UINT);
 549                         break;
 550                 case 16:
 551                         si_change_format(src, src_level, &orig_info[0],
 552                                          PIPE_FORMAT_R32G32B32A32_UINT);
 553                         si_change_format(dst, dst_level, &orig_info[1],
 554                                          PIPE_FORMAT_R32G32B32A32_UINT);
 555                         break;
 556                 default:
 557                         fprintf(stderr, "Unhandled format %s with blocksize %u\n",
 558                                 util_format_short_name(src->format), blocksize);
 559                         assert(0);
 560                 }
 561                 restore_orig[0] = TRUE;
 562                 restore_orig[1] = TRUE;
 563         }
 564
 565         si_blitter_begin(ctx, SI_COPY);
 566         util_blitter_copy_texture(sctx->blitter, dst, dst_level, dstx, dsty, dstz,
 567                                   src, src_level, psbox);
 568         si_blitter_end(ctx);
 569
 570         if (restore_orig[0])
 571                 si_reset_blittable_to_orig(src, src_level, &orig_info[0]);
 572
 573         if (restore_orig[1])
 574                 si_reset_blittable_to_orig(dst, dst_level, &orig_info[1]);
 575 }
 576
 577 /* For MSAA integer resolving to work, we change the format to NORM using this function. */
 578 static enum pipe_format int_to_norm_format(enum pipe_format format)
 579 {
 580         switch (format) {
 581 #define REPLACE_FORMAT_SIGN(format,sign) \
 582         case PIPE_FORMAT_##format##_##sign##INT: \
 583                 return PIPE_FORMAT_##format##_##sign##NORM
 584 #define REPLACE_FORMAT(format) \
 585                 REPLACE_FORMAT_SIGN(format, U); \
 586                 REPLACE_FORMAT_SIGN(format, S)
 587
 588         REPLACE_FORMAT_SIGN(B10G10R10A2, U);
 589         REPLACE_FORMAT(R8);
 590         REPLACE_FORMAT(R8G8);
 591         REPLACE_FORMAT(R8G8B8X8);
 592         REPLACE_FORMAT(R8G8B8A8);
 593         REPLACE_FORMAT(A8);
 594         REPLACE_FORMAT(I8);
 595         REPLACE_FORMAT(L8);
 596         REPLACE_FORMAT(L8A8);
 597         REPLACE_FORMAT(R16);
 598         REPLACE_FORMAT(R16G16);
 599         REPLACE_FORMAT(R16G16B16X16);
 600         REPLACE_FORMAT(R16G16B16A16);
 601         REPLACE_FORMAT(A16);
 602         REPLACE_FORMAT(I16);
 603         REPLACE_FORMAT(L16);
 604         REPLACE_FORMAT(L16A16);
 605
 606 #undef REPLACE_FORMAT
 607 #undef REPLACE_FORMAT_SIGN
 608         default:
 609                 return format;
 610         }
 611 }
 612
 613 static bool do_hardware_msaa_resolve(struct pipe_context *ctx,
 614                                      const struct pipe_blit_info *info)
 615 {
 616         struct si_context *sctx = (struct si_context*)ctx;
 617         struct r600_texture *dst = (struct r600_texture*)info->dst.resource;
 618         unsigned dst_width = u_minify(info->dst.resource->width0, info->dst.level);
 619         unsigned dst_height = u_minify(info->dst.resource->height0, info->dst.level);
 620         enum pipe_format format = int_to_norm_format(info->dst.format);
 621         unsigned sample_mask = ~0;
 622
 623         if (info->src.resource->nr_samples > 1 &&
 624             info->dst.resource->nr_samples <= 1 &&
 625             util_max_layer(info->src.resource, 0) == 0 &&
 626             util_max_layer(info->dst.resource, info->dst.level) == 0 &&
 627             info->dst.format == info->src.format &&
 628             !util_format_is_pure_integer(format) &&
 629             !util_format_is_depth_or_stencil(format) &&
 630             !info->scissor_enable &&
 631             (info->mask & PIPE_MASK_RGBA) == PIPE_MASK_RGBA &&
 632             dst_width == info->src.resource->width0 &&
 633             dst_height == info->src.resource->height0 &&
 634             info->dst.box.x == 0 &&
 635             info->dst.box.y == 0 &&
 636             info->dst.box.width == dst_width &&
 637             info->dst.box.height == dst_height &&
 638             info->dst.box.depth == 1 &&
 639             info->src.box.x == 0 &&
 640             info->src.box.y == 0 &&
 641             info->src.box.width == dst_width &&
 642             info->src.box.height == dst_height &&
 643             info->src.box.depth == 1 &&
 644             dst->surface.level[info->dst.level].mode >= RADEON_SURF_MODE_1D &&
 645             !(dst->surface.flags & RADEON_SURF_SCANOUT)) {
 646                 si_blitter_begin(ctx, SI_COLOR_RESOLVE);
 647                 util_blitter_custom_resolve_color(sctx->blitter,
 648                                                   info->dst.resource, info->dst.level,
 649                                                   info->dst.box.z,
 650                                                   info->src.resource, info->src.box.z,
 651                                                   sample_mask, sctx->custom_blend_resolve,
 652                                                   format);
 653                 si_blitter_end(ctx);
 654                 return true;
 655         }
 656         return false;
 657 }
 658
 659 static void si_blit(struct pipe_context *ctx,
 660                     const struct pipe_blit_info *info)
 661 {
 662         struct si_context *sctx = (struct si_context*)ctx;
 663
 664         if (do_hardware_msaa_resolve(ctx, info)) {
 665                 return;
 666         }
 667
 668         assert(util_blitter_is_blit_supported(sctx->blitter, info));
 669
 670         /* The driver doesn't decompress resources automatically while
 671          * u_blitter is rendering. */
 672         si_decompress_subresource(ctx, info->src.resource, info->src.level,
 673                                   info->src.box.z,
 674                                   info->src.box.z + info->src.box.depth - 1);
 675
 676         si_blitter_begin(ctx, SI_BLIT);
 677         util_blitter_blit(sctx->blitter, info);
 678         si_blitter_end(ctx);
 679 }
 680
 681 static void si_flush_resource(struct pipe_context *ctx,
 682                               struct pipe_resource *resource)
 683 {
 684 }
 685
 686 void si_init_blit_functions(struct si_context *sctx)
 687 {
 688         sctx->b.b.clear = si_clear;
 689         sctx->b.b.clear_render_target = si_clear_render_target;
 690         sctx->b.b.clear_depth_stencil = si_clear_depth_stencil;
 691         sctx->b.b.resource_copy_region = si_resource_copy_region;
 692         sctx->b.b.blit = si_blit;
 693         sctx->b.b.flush_resource = si_flush_resource;
 694         sctx->b.blit_decompress_depth = si_blit_decompress_depth;
 695 }