src/gallium/drivers/r600/r600_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 #include "r600_pipe.h"
  24 #include "util/u_surface.h"
  25 #include "util/u_blitter.h"
  26 #include "util/u_format.h"
  27
  28 enum r600_blitter_op /* bitmask */
  29 {
  30         R600_SAVE_FRAGMENT_STATE = 1,
  31         R600_SAVE_TEXTURES       = 2,
  32         R600_SAVE_FRAMEBUFFER    = 4,
  33         R600_DISABLE_RENDER_COND = 8,
  34
  35         R600_CLEAR         = R600_SAVE_FRAGMENT_STATE,
  36
  37         R600_CLEAR_SURFACE = R600_SAVE_FRAGMENT_STATE | R600_SAVE_FRAMEBUFFER,
  38
  39         R600_COPY_BUFFER   = R600_DISABLE_RENDER_COND,
  40
  41         R600_COPY_TEXTURE  = R600_SAVE_FRAGMENT_STATE | R600_SAVE_FRAMEBUFFER | R600_SAVE_TEXTURES |
  42                              R600_DISABLE_RENDER_COND,
  43
  44         R600_DECOMPRESS    = R600_SAVE_FRAGMENT_STATE | R600_SAVE_FRAMEBUFFER | R600_DISABLE_RENDER_COND,
  45
  46         R600_COLOR_RESOLVE = R600_SAVE_FRAGMENT_STATE | R600_SAVE_FRAMEBUFFER | R600_DISABLE_RENDER_COND
  47 };
  48
  49 static void r600_blitter_begin(struct pipe_context *ctx, enum r600_blitter_op op)
  50 {
  51         struct r600_context *rctx = (struct r600_context *)ctx;
  52
  53         r600_suspend_nontimer_queries(rctx);
  54
  55         util_blitter_save_vertex_buffers(rctx->blitter,
  56                                          util_last_bit(rctx->vertex_buffer_state.enabled_mask),
  57                                          rctx->vertex_buffer_state.vb);
  58         util_blitter_save_vertex_elements(rctx->blitter, rctx->vertex_elements);
  59         util_blitter_save_vertex_shader(rctx->blitter, rctx->vs_shader);
  60         util_blitter_save_so_targets(rctx->blitter, rctx->num_so_targets,
  61                                      (struct pipe_stream_output_target**)rctx->so_targets);
  62         util_blitter_save_rasterizer(rctx->blitter, rctx->states[R600_PIPE_STATE_RASTERIZER]);
  63
  64         if (op & R600_SAVE_FRAGMENT_STATE) {
  65                 if (rctx->states[R600_PIPE_STATE_VIEWPORT]) {
  66                         util_blitter_save_viewport(rctx->blitter, &rctx->viewport);
  67                 }
  68                 util_blitter_save_fragment_shader(rctx->blitter, rctx->ps_shader);
  69                 util_blitter_save_blend(rctx->blitter, rctx->states[R600_PIPE_STATE_BLEND]);
  70                 util_blitter_save_depth_stencil_alpha(rctx->blitter, rctx->states[R600_PIPE_STATE_DSA]);
  71                 if (rctx->states[R600_PIPE_STATE_STENCIL_REF]) {
  72                         util_blitter_save_stencil_ref(rctx->blitter, &rctx->stencil_ref);
  73                 }
  74                 util_blitter_save_sample_mask(rctx->blitter, rctx->sample_mask.sample_mask);
  75         }
  76
  77         if (op & R600_SAVE_FRAMEBUFFER)
  78                 util_blitter_save_framebuffer(rctx->blitter, &rctx->framebuffer);
  79
  80         if (op & R600_SAVE_TEXTURES) {
  81                 util_blitter_save_fragment_sampler_states(
  82                         rctx->blitter, rctx->ps_samplers.n_samplers,
  83                         (void**)rctx->ps_samplers.samplers);
  84
  85                 util_blitter_save_fragment_sampler_views(
  86                         rctx->blitter, util_last_bit(rctx->ps_samplers.views.enabled_mask),
  87                         (struct pipe_sampler_view**)rctx->ps_samplers.views.views);
  88         }
  89
  90         if ((op & R600_DISABLE_RENDER_COND) && rctx->current_render_cond) {
  91                 rctx->saved_render_cond = rctx->current_render_cond;
  92                 rctx->saved_render_cond_mode = rctx->current_render_cond_mode;
  93                 rctx->context.render_condition(&rctx->context, NULL, 0);
  94         }
  95
  96 }
  97
  98 static void r600_blitter_end(struct pipe_context *ctx)
  99 {
 100         struct r600_context *rctx = (struct r600_context *)ctx;
 101         if (rctx->saved_render_cond) {
 102                 rctx->context.render_condition(&rctx->context,
 103                                                rctx->saved_render_cond,
 104                                                rctx->saved_render_cond_mode);
 105                 rctx->saved_render_cond = NULL;
 106         }
 107         r600_resume_nontimer_queries(rctx);
 108 }
 109
 110 static unsigned u_max_layer(struct pipe_resource *r, unsigned level)
 111 {
 112         switch (r->target) {
 113         case PIPE_TEXTURE_CUBE:
 114                 return 6 - 1;
 115         case PIPE_TEXTURE_3D:
 116                 return u_minify(r->depth0, level) - 1;
 117         case PIPE_TEXTURE_1D_ARRAY:
 118         case PIPE_TEXTURE_2D_ARRAY:
 119                 return r->array_size - 1;
 120         default:
 121                 return 0;
 122         }
 123 }
 124
 125 static unsigned u_max_sample(struct pipe_resource *r)
 126 {
 127         return r->nr_samples ? r->nr_samples - 1 : 0;
 128 }
 129
 130 void r600_blit_decompress_depth(struct pipe_context *ctx,
 131                 struct r600_texture *texture,
 132                 struct r600_texture *staging,
 133                 unsigned first_level, unsigned last_level,
 134                 unsigned first_layer, unsigned last_layer,
 135                 unsigned first_sample, unsigned last_sample)
 136 {
 137         struct r600_context *rctx = (struct r600_context *)ctx;
 138         unsigned layer, level, sample, checked_last_layer, max_layer, max_sample;
 139         struct r600_texture *flushed_depth_texture = staging ?
 140                         staging : texture->flushed_depth_texture;
 141         const struct util_format_description *desc =
 142                 util_format_description(texture->resource.b.b.format);
 143         float depth;
 144
 145         if (!staging && !texture->dirty_level_mask)
 146                 return;
 147
 148         max_sample = u_max_sample(&texture->resource.b.b);
 149
 150         /* XXX Decompressing MSAA depth textures is broken on R6xx.
 151          * There is also a hardlock if CMASK and FMASK are not present.
 152          * Just skip this until we find out how to fix it. */
 153         if (rctx->chip_class == R600 && max_sample > 0) {
 154                 texture->dirty_level_mask = 0;
 155                 return;
 156         }
 157
 158         if (rctx->family == CHIP_RV610 || rctx->family == CHIP_RV630 ||
 159             rctx->family == CHIP_RV620 || rctx->family == CHIP_RV635)
 160                 depth = 0.0f;
 161         else
 162                 depth = 1.0f;
 163
 164         /* Enable decompression in DB_RENDER_CONTROL */
 165         rctx->db_misc_state.flush_depthstencil_through_cb = true;
 166         rctx->db_misc_state.copy_depth = util_format_has_depth(desc);
 167         rctx->db_misc_state.copy_stencil = util_format_has_stencil(desc);
 168         rctx->db_misc_state.copy_sample = first_sample;
 169         r600_atom_dirty(rctx, &rctx->db_misc_state.atom);
 170
 171
 172         for (level = first_level; level <= last_level; level++) {
 173                 if (!staging && !(texture->dirty_level_mask & (1 << level)))
 174                         continue;
 175
 176                 /* The smaller the mipmap level, the less layers there are
 177                  * as far as 3D textures are concerned. */
 178                 max_layer = u_max_layer(&texture->resource.b.b, level);
 179                 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
 180
 181                 for (layer = first_layer; layer <= checked_last_layer; layer++) {
 182                         for (sample = first_sample; sample <= last_sample; sample++) {
 183                                 struct pipe_surface *zsurf, *cbsurf, surf_tmpl;
 184
 185                                 if (sample != rctx->db_misc_state.copy_sample) {
 186                                         rctx->db_misc_state.copy_sample = sample;
 187                                         r600_atom_dirty(rctx, &rctx->db_misc_state.atom);
 188                                 }
 189
 190                                 surf_tmpl.format = texture->resource.b.b.format;
 191                                 surf_tmpl.u.tex.level = level;
 192                                 surf_tmpl.u.tex.first_layer = layer;
 193                                 surf_tmpl.u.tex.last_layer = layer;
 194                                 surf_tmpl.usage = PIPE_BIND_DEPTH_STENCIL;
 195
 196                                 zsurf = ctx->create_surface(ctx, &texture->resource.b.b, &surf_tmpl);
 197
 198                                 surf_tmpl.format = flushed_depth_texture->resource.b.b.format;
 199                                 surf_tmpl.u.tex.level = level;
 200                                 surf_tmpl.u.tex.first_layer = layer;
 201                                 surf_tmpl.u.tex.last_layer = layer;
 202                                 surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
 203                                 cbsurf = ctx->create_surface(ctx,
 204                                                 &flushed_depth_texture->resource.b.b, &surf_tmpl);
 205
 206                                 r600_blitter_begin(ctx, R600_DECOMPRESS);
 207                                 util_blitter_custom_depth_stencil(rctx->blitter, zsurf, cbsurf, 1 << sample,
 208                                                                   rctx->custom_dsa_flush, depth);
 209                                 r600_blitter_end(ctx);
 210
 211                                 pipe_surface_reference(&zsurf, NULL);
 212                                 pipe_surface_reference(&cbsurf, NULL);
 213                         }
 214                 }
 215
 216                 /* The texture will always be dirty if some layers or samples aren't flushed.
 217                  * I don't think this case occurs often though. */
 218                 if (!staging &&
 219                     first_layer == 0 && last_layer == max_layer &&
 220                     first_sample == 0 && last_sample == max_sample) {
 221                         texture->dirty_level_mask &= ~(1 << level);
 222                 }
 223         }
 224
 225         /* reenable compression in DB_RENDER_CONTROL */
 226         rctx->db_misc_state.flush_depthstencil_through_cb = false;
 227         r600_atom_dirty(rctx, &rctx->db_misc_state.atom);
 228 }
 229
 230 void r600_decompress_depth_textures(struct r600_context *rctx,
 231                                struct r600_samplerview_state *textures)
 232 {
 233         unsigned i;
 234         unsigned depth_texture_mask = textures->compressed_depthtex_mask;
 235
 236         while (depth_texture_mask) {
 237                 struct pipe_sampler_view *view;
 238                 struct r600_texture *tex;
 239
 240                 i = u_bit_scan(&depth_texture_mask);
 241
 242                 view = &textures->views[i]->base;
 243                 assert(view);
 244
 245                 tex = (struct r600_texture *)view->texture;
 246                 assert(tex->is_depth && !tex->is_flushing_texture);
 247
 248                 r600_blit_decompress_depth(&rctx->context, tex, NULL,
 249                                            view->u.tex.first_level, view->u.tex.last_level,
 250                                            0, u_max_layer(&tex->resource.b.b, view->u.tex.first_level),
 251                                            0, u_max_sample(&tex->resource.b.b));
 252         }
 253 }
 254
 255 static void r600_blit_decompress_color(struct pipe_context *ctx,
 256                 struct r600_texture *rtex,
 257                 unsigned first_level, unsigned last_level,
 258                 unsigned first_layer, unsigned last_layer)
 259 {
 260         struct r600_context *rctx = (struct r600_context *)ctx;
 261         unsigned layer, level, checked_last_layer, max_layer;
 262
 263         if (!rtex->dirty_level_mask)
 264                 return;
 265
 266         for (level = first_level; level <= last_level; level++) {
 267                 if (!(rtex->dirty_level_mask & (1 << level)))
 268                         continue;
 269
 270                 /* The smaller the mipmap level, the less layers there are
 271                  * as far as 3D textures are concerned. */
 272                 max_layer = u_max_layer(&rtex->resource.b.b, level);
 273                 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
 274
 275                 for (layer = first_layer; layer <= checked_last_layer; layer++) {
 276                         struct pipe_surface *cbsurf, surf_tmpl;
 277
 278                         surf_tmpl.format = rtex->resource.b.b.format;
 279                         surf_tmpl.u.tex.level = level;
 280                         surf_tmpl.u.tex.first_layer = layer;
 281                         surf_tmpl.u.tex.last_layer = layer;
 282                         surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
 283                         cbsurf = ctx->create_surface(ctx, &rtex->resource.b.b, &surf_tmpl);
 284
 285                         r600_blitter_begin(ctx, R600_DECOMPRESS);
 286                         util_blitter_custom_color(rctx->blitter, cbsurf,
 287                                                   rctx->custom_blend_decompress);
 288                         r600_blitter_end(ctx);
 289
 290                         pipe_surface_reference(&cbsurf, NULL);
 291                 }
 292
 293                 /* The texture will always be dirty if some layers or samples aren't flushed.
 294                  * I don't think this case occurs often though. */
 295                 if (first_layer == 0 && last_layer == max_layer) {
 296                         rtex->dirty_level_mask &= ~(1 << level);
 297                 }
 298         }
 299 }
 300
 301 void r600_decompress_color_textures(struct r600_context *rctx,
 302                                     struct r600_samplerview_state *textures)
 303 {
 304         unsigned i;
 305         unsigned mask = textures->compressed_colortex_mask;
 306
 307         while (mask) {
 308                 struct pipe_sampler_view *view;
 309                 struct r600_texture *tex;
 310
 311                 i = u_bit_scan(&mask);
 312
 313                 view = &textures->views[i]->base;
 314                 assert(view);
 315
 316                 tex = (struct r600_texture *)view->texture;
 317                 assert(tex->cmask_size && tex->fmask_size);
 318
 319                 r600_blit_decompress_color(&rctx->context, tex,
 320                                            view->u.tex.first_level, view->u.tex.last_level,
 321                                            0, u_max_layer(&tex->resource.b.b, view->u.tex.first_level));
 322         }
 323 }
 324
 325 static void r600_copy_first_sample(struct pipe_context *ctx,
 326                                    const struct pipe_resolve_info *info)
 327 {
 328         struct r600_context *rctx = (struct r600_context *)ctx;
 329         struct r600_texture *rsrc = (struct r600_texture*)info->src.res;
 330         struct pipe_surface *dst_view, dst_templ;
 331         struct pipe_sampler_view src_templ, *src_view;
 332         struct pipe_box box;
 333
 334         if (rsrc->is_depth && !rsrc->is_flushing_texture) {
 335                 if (!r600_init_flushed_depth_texture(ctx, info->src.res, NULL))
 336                         return; /* error */
 337
 338                 /* Decompress the first sample only. */
 339                 r600_blit_decompress_depth(ctx, rsrc, NULL,
 340                                            0, 0,
 341                                            info->src.layer, info->src.layer,
 342                                            0, 0);
 343         }
 344         if (rsrc->fmask_size && rsrc->cmask_size) {
 345                 r600_blit_decompress_color(ctx, rsrc,
 346                                            0, 0,
 347                                            info->src.layer, info->src.layer);
 348         }
 349
 350         /* this is correct for upside-down blits too */
 351         u_box_2d(info->src.x0,
 352                  info->src.y0,
 353                  info->src.x1 - info->src.x0,
 354                  info->src.y1 - info->src.y0, &box);
 355
 356         /* Initialize the surface. */
 357         util_blitter_default_dst_texture(&dst_templ, info->dst.res,
 358                                          info->dst.level, info->dst.layer, &box);
 359         dst_view = ctx->create_surface(ctx, info->dst.res, &dst_templ);
 360
 361         /* Initialize the sampler view. */
 362         util_blitter_default_src_texture(&src_templ, info->src.res, 0);
 363         src_view = ctx->create_sampler_view(ctx, info->src.res, &src_templ);
 364
 365         /* Copy the first sample into dst. */
 366         r600_blitter_begin(ctx, R600_COPY_TEXTURE);
 367         util_blitter_copy_texture_view(rctx->blitter, dst_view, ~0, info->dst.x0,
 368                                        info->dst.y0, src_view, 0, &box,
 369                                        info->src.res->width0, info->src.res->height0,
 370                                        info->mask);
 371         r600_blitter_end(ctx);
 372
 373         pipe_surface_reference(&dst_view, NULL);
 374         pipe_sampler_view_reference(&src_view, NULL);
 375 }
 376
 377 static boolean is_simple_resolve(const struct pipe_resolve_info *info)
 378 {
 379    unsigned dst_width = u_minify(info->dst.res->width0, info->dst.level);
 380    unsigned dst_height = u_minify(info->dst.res->height0, info->dst.level);
 381
 382    return info->dst.res->format == info->src.res->format &&
 383           dst_width == info->src.res->width0 &&
 384           dst_height == info->src.res->height0 &&
 385           info->dst.x0 == 0 &&
 386           info->dst.y0 == 0 &&
 387           info->dst.x1 == dst_width &&
 388           info->dst.y1 == dst_height &&
 389           info->src.x0 == 0 &&
 390           info->src.y0 == 0 &&
 391           info->src.x1 == dst_width &&
 392           info->src.y1 == dst_height;
 393 }
 394
 395 static void r600_color_resolve(struct pipe_context *ctx,
 396                                const struct pipe_resolve_info *info)
 397 {
 398         struct r600_context *rctx = (struct r600_context *)ctx;
 399         struct pipe_screen *screen = ctx->screen;
 400         struct pipe_resource *tmp, templ;
 401         struct pipe_box box;
 402
 403         assert((info->mask & PIPE_MASK_RGBA) == PIPE_MASK_RGBA);
 404
 405         if (is_simple_resolve(info)) {
 406                 r600_blitter_begin(ctx, R600_COLOR_RESOLVE);
 407                 util_blitter_custom_resolve_color(rctx->blitter,
 408                                                   info->dst.res, info->dst.level, info->dst.layer,
 409                                                   info->src.res, info->src.layer,
 410                                                   rctx->custom_blend_resolve);
 411                 r600_blitter_end(ctx);
 412                 return;
 413         }
 414
 415         /* resolve into a temporary texture, then blit */
 416         templ.target = PIPE_TEXTURE_2D;
 417         templ.format = info->src.res->format;
 418         templ.width0 = info->src.res->width0;
 419         templ.height0 = info->src.res->height0;
 420         templ.depth0 = 1;
 421         templ.array_size = 1;
 422         templ.last_level = 0;
 423         templ.nr_samples = 0;
 424         templ.usage = PIPE_USAGE_STATIC;
 425         templ.bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 426         templ.flags = 0;
 427
 428         tmp = screen->resource_create(screen, &templ);
 429
 430         /* XXX use scissor, so that only the needed part of the resource is resolved */
 431         r600_blitter_begin(ctx, R600_COLOR_RESOLVE);
 432         util_blitter_custom_resolve_color(rctx->blitter,
 433                                           tmp, 0, 0,
 434                                           info->src.res, info->src.layer,
 435                                           rctx->custom_blend_resolve);
 436         r600_blitter_end(ctx);
 437
 438         /* this is correct for upside-down blits too */
 439         u_box_2d(info->src.x0,
 440                  info->src.y0,
 441                  info->src.x1 - info->src.x0,
 442                  info->src.y1 - info->src.y0, &box);
 443
 444         r600_blitter_begin(ctx, R600_COPY_TEXTURE);
 445         util_blitter_copy_texture(rctx->blitter, info->dst.res, info->dst.level,
 446                                   ~0, info->dst.x0, info->dst.y0, info->dst.layer,
 447                                   tmp, 0, 0, &box);
 448         r600_blitter_end(ctx);
 449
 450         pipe_resource_reference(&tmp, NULL);
 451 }
 452
 453 static void r600_resource_resolve(struct pipe_context *ctx,
 454                                   const struct pipe_resolve_info *info)
 455 {
 456         /* make sure we're doing a resolve operation */
 457         assert(info->src.res->nr_samples > 1);
 458         assert(info->dst.res->nr_samples <= 1);
 459
 460         /* limitations of multisample resources */
 461         assert(info->src.res->last_level == 0);
 462         assert(info->src.res->target == PIPE_TEXTURE_2D ||
 463                info->src.res->target == PIPE_TEXTURE_2D_ARRAY);
 464
 465         /* check if the resolve box is valid */
 466         assert(info->dst.x0 < info->dst.x1);
 467         assert(info->dst.y0 < info->dst.y1);
 468
 469         /* scaled resolve isn't allowed */
 470         assert(abs(info->dst.x0 - info->dst.x1) ==
 471                abs(info->src.x0 - info->src.x1));
 472         assert(abs(info->dst.y0 - info->dst.y1) ==
 473                abs(info->src.y0 - info->src.y1));
 474
 475         if ((info->mask & PIPE_MASK_ZS) ||
 476             util_format_is_pure_integer(info->src.res->format)) {
 477                 r600_copy_first_sample(ctx, info);
 478         } else {
 479                 r600_color_resolve(ctx, info);
 480         }
 481 }
 482
 483 static void r600_clear(struct pipe_context *ctx, unsigned buffers,
 484                        const union pipe_color_union *color,
 485                        double depth, unsigned stencil)
 486 {
 487         struct r600_context *rctx = (struct r600_context *)ctx;
 488         struct pipe_framebuffer_state *fb = &rctx->framebuffer;
 489
 490         r600_blitter_begin(ctx, R600_CLEAR);
 491         util_blitter_clear(rctx->blitter, fb->width, fb->height,
 492                            fb->nr_cbufs, buffers, fb->nr_cbufs ? fb->cbufs[0]->format : PIPE_FORMAT_NONE,
 493                            color, depth, stencil);
 494         r600_blitter_end(ctx);
 495 }
 496
 497 static void r600_clear_render_target(struct pipe_context *ctx,
 498                                      struct pipe_surface *dst,
 499                                      const union pipe_color_union *color,
 500                                      unsigned dstx, unsigned dsty,
 501                                      unsigned width, unsigned height)
 502 {
 503         struct r600_context *rctx = (struct r600_context *)ctx;
 504
 505         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 506         util_blitter_clear_render_target(rctx->blitter, dst, color,
 507                                          dstx, dsty, width, height);
 508         r600_blitter_end(ctx);
 509 }
 510
 511 static void r600_clear_depth_stencil(struct pipe_context *ctx,
 512                                      struct pipe_surface *dst,
 513                                      unsigned clear_flags,
 514                                      double depth,
 515                                      unsigned stencil,
 516                                      unsigned dstx, unsigned dsty,
 517                                      unsigned width, unsigned height)
 518 {
 519         struct r600_context *rctx = (struct r600_context *)ctx;
 520
 521         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 522         util_blitter_clear_depth_stencil(rctx->blitter, dst, clear_flags, depth, stencil,
 523                                          dstx, dsty, width, height);
 524         r600_blitter_end(ctx);
 525 }
 526
 527 void r600_copy_buffer(struct pipe_context *ctx, struct
 528                       pipe_resource *dst, unsigned dstx,
 529                       struct pipe_resource *src, const struct pipe_box *src_box)
 530 {
 531         struct r600_context *rctx = (struct r600_context*)ctx;
 532
 533         if (rctx->screen->has_streamout &&
 534             /* Require dword alignment. */
 535             dstx % 4 == 0 && src_box->x % 4 == 0 && src_box->width % 4 == 0) {
 536                 r600_blitter_begin(ctx, R600_COPY_BUFFER);
 537                 util_blitter_copy_buffer(rctx->blitter, dst, dstx, src, src_box->x, src_box->width);
 538                 r600_blitter_end(ctx);
 539         } else {
 540                 util_resource_copy_region(ctx, dst, 0, dstx, 0, 0, src, 0, src_box);
 541         }
 542 }
 543
 544 struct texture_orig_info {
 545         unsigned format;
 546         unsigned width0;
 547         unsigned height0;
 548         unsigned npix_x;
 549         unsigned npix_y;
 550         unsigned npix0_x;
 551         unsigned npix0_y;
 552 };
 553
 554 static void r600_compressed_to_blittable(struct pipe_resource *tex,
 555                                    unsigned level,
 556                                    struct texture_orig_info *orig)
 557 {
 558         struct r600_texture *rtex = (struct r600_texture*)tex;
 559         unsigned pixsize = util_format_get_blocksize(rtex->resource.b.b.format);
 560         int new_format;
 561         int new_height, new_width;
 562
 563         orig->format = tex->format;
 564         orig->width0 = tex->width0;
 565         orig->height0 = tex->height0;
 566         orig->npix0_x = rtex->surface.level[0].npix_x;
 567         orig->npix0_y = rtex->surface.level[0].npix_y;
 568         orig->npix_x = rtex->surface.level[level].npix_x;
 569         orig->npix_y = rtex->surface.level[level].npix_y;
 570
 571         if (pixsize == 8)
 572                 new_format = PIPE_FORMAT_R16G16B16A16_UINT; /* 64-bit block */
 573         else
 574                 new_format = PIPE_FORMAT_R32G32B32A32_UINT; /* 128-bit block */
 575
 576         new_width = util_format_get_nblocksx(tex->format, orig->width0);
 577         new_height = util_format_get_nblocksy(tex->format, orig->height0);
 578
 579         tex->width0 = new_width;
 580         tex->height0 = new_height;
 581         tex->format = new_format;
 582         rtex->surface.level[0].npix_x = util_format_get_nblocksx(orig->format, orig->npix0_x);
 583         rtex->surface.level[0].npix_y = util_format_get_nblocksy(orig->format, orig->npix0_y);
 584         rtex->surface.level[level].npix_x = util_format_get_nblocksx(orig->format, orig->npix_x);
 585         rtex->surface.level[level].npix_y = util_format_get_nblocksy(orig->format, orig->npix_y);
 586 }
 587
 588 static void r600_subsampled_2x1_32bpp_to_blittable(struct pipe_resource *tex,
 589                                                    unsigned level,
 590                                                    struct texture_orig_info *orig)
 591 {
 592         struct r600_texture *rtex = (struct r600_texture*)tex;
 593
 594         orig->format = tex->format;
 595         orig->width0 = tex->width0;
 596         orig->height0 = tex->height0;
 597         orig->npix0_x = rtex->surface.level[0].npix_x;
 598         orig->npix0_y = rtex->surface.level[0].npix_y;
 599         orig->npix_x = rtex->surface.level[level].npix_x;
 600         orig->npix_y = rtex->surface.level[level].npix_y;
 601
 602         tex->width0 = util_format_get_nblocksx(orig->format, orig->width0);
 603         tex->format = PIPE_FORMAT_R8G8B8A8_UINT;
 604         rtex->surface.level[0].npix_x = util_format_get_nblocksx(orig->format, orig->npix0_x);
 605         rtex->surface.level[level].npix_x = util_format_get_nblocksx(orig->format, orig->npix_x);
 606 }
 607
 608 static void r600_change_format(struct pipe_resource *tex,
 609                                unsigned level,
 610                                struct texture_orig_info *orig,
 611                                enum pipe_format format)
 612 {
 613         struct r600_texture *rtex = (struct r600_texture*)tex;
 614
 615         orig->format = tex->format;
 616         orig->width0 = tex->width0;
 617         orig->height0 = tex->height0;
 618         orig->npix0_x = rtex->surface.level[0].npix_x;
 619         orig->npix0_y = rtex->surface.level[0].npix_y;
 620         orig->npix_x = rtex->surface.level[level].npix_x;
 621         orig->npix_y = rtex->surface.level[level].npix_y;
 622
 623         tex->format = format;
 624 }
 625
 626 static void r600_reset_blittable_to_orig(struct pipe_resource *tex,
 627                                          unsigned level,
 628                                          struct texture_orig_info *orig)
 629 {
 630         struct r600_texture *rtex = (struct r600_texture*)tex;
 631
 632         tex->format = orig->format;
 633         tex->width0 = orig->width0;
 634         tex->height0 = orig->height0;
 635         rtex->surface.level[0].npix_x = orig->npix0_x;
 636         rtex->surface.level[0].npix_y = orig->npix0_y;
 637         rtex->surface.level[level].npix_x = orig->npix_x;
 638         rtex->surface.level[level].npix_y = orig->npix_y;
 639 }
 640
 641 static bool util_format_is_subsampled_2x1_32bpp(enum pipe_format format)
 642 {
 643         const struct util_format_description *desc = util_format_description(format);
 644
 645         return desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED &&
 646                desc->block.width == 2 &&
 647                desc->block.height == 1 &&
 648                desc->block.bits == 32;
 649 }
 650
 651 static void r600_resource_copy_region(struct pipe_context *ctx,
 652                                       struct pipe_resource *dst,
 653                                       unsigned dst_level,
 654                                       unsigned dstx, unsigned dsty, unsigned dstz,
 655                                       struct pipe_resource *src,
 656                                       unsigned src_level,
 657                                       const struct pipe_box *src_box)
 658 {
 659         struct r600_context *rctx = (struct r600_context *)ctx;
 660         struct r600_texture *rsrc = (struct r600_texture*)src;
 661         struct texture_orig_info orig_info[2];
 662         struct pipe_box sbox;
 663         const struct pipe_box *psbox = src_box;
 664         boolean restore_orig[2];
 665         unsigned last_sample, i;
 666
 667         memset(orig_info, 0, sizeof(orig_info));
 668
 669         /* Handle buffers first. */
 670         if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
 671                 r600_copy_buffer(ctx, dst, dstx, src, src_box);
 672                 return;
 673         }
 674
 675         assert(u_max_sample(dst) == u_max_sample(src));
 676         last_sample = u_max_sample(dst);
 677
 678         /* This must be done before entering u_blitter to avoid recursion. */
 679         if (rsrc->is_depth && !rsrc->is_flushing_texture) {
 680                 if (!r600_init_flushed_depth_texture(ctx, src, NULL))
 681                         return; /* error */
 682
 683                 r600_blit_decompress_depth(ctx, rsrc, NULL,
 684                                            src_level, src_level,
 685                                            src_box->z, src_box->z + src_box->depth - 1,
 686                                            0, u_max_sample(src));
 687         }
 688         if (rsrc->fmask_size && rsrc->cmask_size) {
 689                 r600_blit_decompress_color(ctx, rsrc, src_level, src_level,
 690                                            src_box->z, src_box->z + src_box->depth - 1);
 691         }
 692
 693         restore_orig[0] = restore_orig[1] = FALSE;
 694
 695         if (util_format_is_compressed(src->format) &&
 696             util_format_is_compressed(dst->format)) {
 697                 r600_compressed_to_blittable(src, src_level, &orig_info[0]);
 698                 restore_orig[0] = TRUE;
 699                 sbox.x = util_format_get_nblocksx(orig_info[0].format, src_box->x);
 700                 sbox.y = util_format_get_nblocksy(orig_info[0].format, src_box->y);
 701                 sbox.z = src_box->z;
 702                 sbox.width = util_format_get_nblocksx(orig_info[0].format, src_box->width);
 703                 sbox.height = util_format_get_nblocksy(orig_info[0].format, src_box->height);
 704                 sbox.depth = src_box->depth;
 705                 psbox = &sbox;
 706
 707                 r600_compressed_to_blittable(dst, dst_level, &orig_info[1]);
 708                 restore_orig[1] = TRUE;
 709                 /* translate the dst box as well */
 710                 dstx = util_format_get_nblocksx(orig_info[1].format, dstx);
 711                 dsty = util_format_get_nblocksy(orig_info[1].format, dsty);
 712         } else if (!util_blitter_is_copy_supported(rctx->blitter, dst, src,
 713                                                    PIPE_MASK_RGBAZS)) {
 714                 if (util_format_is_subsampled_2x1_32bpp(src->format) &&
 715                     util_format_is_subsampled_2x1_32bpp(dst->format)) {
 716                         r600_subsampled_2x1_32bpp_to_blittable(src, src_level, &orig_info[0]);
 717                         r600_subsampled_2x1_32bpp_to_blittable(dst, dst_level, &orig_info[1]);
 718
 719                         sbox = *src_box;
 720                         sbox.x = util_format_get_nblocksx(orig_info[0].format, src_box->x);
 721                         sbox.width = util_format_get_nblocksx(orig_info[0].format, src_box->width);
 722                         psbox = &sbox;
 723
 724                         dstx = util_format_get_nblocksx(orig_info[1].format, dstx);
 725                 } else {
 726                         unsigned blocksize = util_format_get_blocksize(src->format);
 727
 728                         switch (blocksize) {
 729                         case 1:
 730                                 r600_change_format(src, src_level, &orig_info[0],
 731                                                    PIPE_FORMAT_R8_UNORM);
 732                                 r600_change_format(dst, dst_level, &orig_info[1],
 733                                                    PIPE_FORMAT_R8_UNORM);
 734                                 break;
 735                         case 4:
 736                                 r600_change_format(src, src_level, &orig_info[0],
 737                                                    PIPE_FORMAT_R8G8B8A8_UNORM);
 738                                 r600_change_format(dst, dst_level, &orig_info[1],
 739                                                    PIPE_FORMAT_R8G8B8A8_UNORM);
 740                                 break;
 741                         default:
 742                                 fprintf(stderr, "Unhandled format %s with blocksize %u\n",
 743                                         util_format_short_name(src->format), blocksize);
 744                                 assert(0);
 745                         }
 746                 }
 747                 restore_orig[0] = TRUE;
 748                 restore_orig[1] = TRUE;
 749         }
 750
 751         for (i = 0; i <= last_sample; i++) {
 752                 r600_blitter_begin(ctx, R600_COPY_TEXTURE);
 753                 util_blitter_copy_texture(rctx->blitter, dst, dst_level, 1 << i, dstx, dsty, dstz,
 754                                           src, src_level, i, psbox);
 755                 r600_blitter_end(ctx);
 756         }
 757
 758         if (restore_orig[0])
 759                 r600_reset_blittable_to_orig(src, src_level, &orig_info[0]);
 760
 761         if (restore_orig[1])
 762                 r600_reset_blittable_to_orig(dst, dst_level, &orig_info[1]);
 763 }
 764
 765 void r600_init_blit_functions(struct r600_context *rctx)
 766 {
 767         rctx->context.clear = r600_clear;
 768         rctx->context.clear_render_target = r600_clear_render_target;
 769         rctx->context.clear_depth_stencil = r600_clear_depth_stencil;
 770         rctx->context.resource_copy_region = r600_resource_copy_region;
 771         rctx->context.resource_resolve = r600_resource_resolve;
 772 }