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_uncompress_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_db_mask)
 146                 return;
 147
 148         if (rctx->family == CHIP_RV610 || rctx->family == CHIP_RV630 ||
 149             rctx->family == CHIP_RV620 || rctx->family == CHIP_RV635)
 150                 depth = 0.0f;
 151         else
 152                 depth = 1.0f;
 153
 154         /* Enable decompression in DB_RENDER_CONTROL */
 155         rctx->db_misc_state.flush_depthstencil_through_cb = true;
 156         rctx->db_misc_state.copy_depth = util_format_has_depth(desc);
 157         rctx->db_misc_state.copy_stencil = util_format_has_stencil(desc);
 158         rctx->db_misc_state.copy_sample = first_sample;
 159         r600_atom_dirty(rctx, &rctx->db_misc_state.atom);
 160
 161         max_sample = u_max_sample(&texture->resource.b.b);
 162
 163         for (level = first_level; level <= last_level; level++) {
 164                 if (!staging && !(texture->dirty_db_mask & (1 << level)))
 165                         continue;
 166
 167                 /* The smaller the mipmap level, the less layers there are
 168                  * as far as 3D textures are concerned. */
 169                 max_layer = u_max_layer(&texture->resource.b.b, level);
 170                 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
 171
 172                 for (layer = first_layer; layer <= checked_last_layer; layer++) {
 173                         for (sample = first_sample; sample <= last_sample; sample++) {
 174                                 struct pipe_surface *zsurf, *cbsurf, surf_tmpl;
 175
 176                                 if (sample != rctx->db_misc_state.copy_sample) {
 177                                         rctx->db_misc_state.copy_sample = sample;
 178                                         r600_atom_dirty(rctx, &rctx->db_misc_state.atom);
 179                                 }
 180
 181                                 surf_tmpl.format = texture->resource.b.b.format;
 182                                 surf_tmpl.u.tex.level = level;
 183                                 surf_tmpl.u.tex.first_layer = layer;
 184                                 surf_tmpl.u.tex.last_layer = layer;
 185                                 surf_tmpl.usage = PIPE_BIND_DEPTH_STENCIL;
 186
 187                                 zsurf = ctx->create_surface(ctx, &texture->resource.b.b, &surf_tmpl);
 188
 189                                 surf_tmpl.format = flushed_depth_texture->resource.b.b.format;
 190                                 surf_tmpl.u.tex.level = level;
 191                                 surf_tmpl.u.tex.first_layer = layer;
 192                                 surf_tmpl.u.tex.last_layer = layer;
 193                                 surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
 194                                 cbsurf = ctx->create_surface(ctx,
 195                                                 &flushed_depth_texture->resource.b.b, &surf_tmpl);
 196
 197                                 r600_blitter_begin(ctx, R600_DECOMPRESS);
 198                                 util_blitter_custom_depth_stencil(rctx->blitter, zsurf, cbsurf, 1 << sample,
 199                                                                   rctx->custom_dsa_flush, depth);
 200                                 r600_blitter_end(ctx);
 201
 202                                 pipe_surface_reference(&zsurf, NULL);
 203                                 pipe_surface_reference(&cbsurf, NULL);
 204                         }
 205                 }
 206
 207                 /* The texture will always be dirty if some layers or samples aren't flushed.
 208                  * I don't think this case occurs often though. */
 209                 if (!staging &&
 210                     first_layer == 0 && last_layer == max_layer &&
 211                     first_sample == 0 && last_sample == max_sample) {
 212                         texture->dirty_db_mask &= ~(1 << level);
 213                 }
 214         }
 215
 216         /* reenable compression in DB_RENDER_CONTROL */
 217         rctx->db_misc_state.flush_depthstencil_through_cb = false;
 218         r600_atom_dirty(rctx, &rctx->db_misc_state.atom);
 219 }
 220
 221 void r600_flush_depth_textures(struct r600_context *rctx,
 222                                struct r600_samplerview_state *textures)
 223 {
 224         unsigned i;
 225         unsigned depth_texture_mask = textures->depth_texture_mask;
 226
 227         while (depth_texture_mask) {
 228                 struct pipe_sampler_view *view;
 229                 struct r600_texture *tex;
 230
 231                 i = u_bit_scan(&depth_texture_mask);
 232
 233                 view = &textures->views[i]->base;
 234                 assert(view);
 235
 236                 tex = (struct r600_texture *)view->texture;
 237                 assert(tex->is_depth && !tex->is_flushing_texture);
 238
 239                 r600_blit_uncompress_depth(&rctx->context, tex, NULL,
 240                                            view->u.tex.first_level, view->u.tex.last_level,
 241                                            0, u_max_layer(&tex->resource.b.b, view->u.tex.first_level),
 242                                            0, u_max_sample(&tex->resource.b.b));
 243         }
 244 }
 245
 246 static void r600_copy_first_sample(struct pipe_context *ctx,
 247                                    const struct pipe_resolve_info *info)
 248 {
 249         struct r600_context *rctx = (struct r600_context *)ctx;
 250         struct r600_texture *rsrc = (struct r600_texture*)info->src.res;
 251         struct pipe_surface *dst_view, dst_templ;
 252         struct pipe_sampler_view src_templ, *src_view;
 253         struct pipe_box box;
 254
 255         if (rsrc->is_depth && !rsrc->is_flushing_texture) {
 256                 if (!r600_init_flushed_depth_texture(ctx, info->src.res, NULL))
 257                         return; /* error */
 258
 259                 /* Decompress the first sample only. */
 260                 r600_blit_uncompress_depth(ctx, rsrc, NULL,
 261                                            0, 0,
 262                                            info->src.layer, info->src.layer,
 263                                            0, 0);
 264         }
 265
 266         /* this is correct for upside-down blits too */
 267         u_box_2d(info->src.x0,
 268                  info->src.y0,
 269                  info->src.x1 - info->src.x0,
 270                  info->src.y1 - info->src.y0, &box);
 271
 272         /* Initialize the surface. */
 273         util_blitter_default_dst_texture(&dst_templ, info->dst.res,
 274                                          info->dst.level, info->dst.layer, &box);
 275         dst_view = ctx->create_surface(ctx, info->dst.res, &dst_templ);
 276
 277         /* Initialize the sampler view. */
 278         util_blitter_default_src_texture(&src_templ, info->src.res, 0);
 279         src_view = ctx->create_sampler_view(ctx, info->src.res, &src_templ);
 280
 281         /* Copy the first sample into dst. */
 282         r600_blitter_begin(ctx, R600_COPY_TEXTURE);
 283         util_blitter_copy_texture_view(rctx->blitter, dst_view, ~0, info->dst.x0,
 284                                        info->dst.y0, src_view, 0, &box,
 285                                        info->src.res->width0, info->src.res->height0,
 286                                        info->mask);
 287         r600_blitter_end(ctx);
 288
 289         pipe_surface_reference(&dst_view, NULL);
 290         pipe_sampler_view_reference(&src_view, NULL);
 291 }
 292
 293 static boolean is_simple_resolve(const struct pipe_resolve_info *info)
 294 {
 295    unsigned dst_width = u_minify(info->dst.res->width0, info->dst.level);
 296    unsigned dst_height = u_minify(info->dst.res->height0, info->dst.level);
 297
 298    return info->dst.res->format == info->src.res->format &&
 299           dst_width == info->src.res->width0 &&
 300           dst_height == info->src.res->height0 &&
 301           info->dst.x0 == 0 &&
 302           info->dst.y0 == 0 &&
 303           info->dst.x1 == dst_width &&
 304           info->dst.y1 == dst_height &&
 305           info->src.x0 == 0 &&
 306           info->src.y0 == 0 &&
 307           info->src.x1 == dst_width &&
 308           info->src.y1 == dst_height;
 309 }
 310
 311 static void r600_color_resolve(struct pipe_context *ctx,
 312                                const struct pipe_resolve_info *info)
 313 {
 314         struct r600_context *rctx = (struct r600_context *)ctx;
 315         struct pipe_screen *screen = ctx->screen;
 316         struct pipe_resource *tmp, templ;
 317         struct pipe_box box;
 318
 319         assert((info->mask & PIPE_MASK_RGBA) == PIPE_MASK_RGBA);
 320
 321         if (is_simple_resolve(info)) {
 322                 r600_blitter_begin(ctx, R600_COLOR_RESOLVE);
 323                 util_blitter_custom_resolve_color(rctx->blitter,
 324                                                   info->dst.res, info->dst.level, info->dst.layer,
 325                                                   info->src.res, info->src.layer,
 326                                                   rctx->custom_blend_resolve);
 327                 r600_blitter_end(ctx);
 328                 return;
 329         }
 330
 331         /* resolve into a temporary texture, then blit */
 332         templ.target = PIPE_TEXTURE_2D;
 333         templ.format = info->src.res->format;
 334         templ.width0 = info->src.res->width0;
 335         templ.height0 = info->src.res->height0;
 336         templ.depth0 = 1;
 337         templ.array_size = 1;
 338         templ.last_level = 0;
 339         templ.nr_samples = 0;
 340         templ.usage = PIPE_USAGE_STATIC;
 341         templ.bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 342         templ.flags = 0;
 343
 344         tmp = screen->resource_create(screen, &templ);
 345
 346         /* XXX use scissor, so that only the needed part of the resource is resolved */
 347         r600_blitter_begin(ctx, R600_COLOR_RESOLVE);
 348         util_blitter_custom_resolve_color(rctx->blitter,
 349                                           tmp, 0, 0,
 350                                           info->src.res, info->src.layer,
 351                                           rctx->custom_blend_resolve);
 352         r600_blitter_end(ctx);
 353
 354         /* this is correct for upside-down blits too */
 355         u_box_2d(info->src.x0,
 356                  info->src.y0,
 357                  info->src.x1 - info->src.x0,
 358                  info->src.y1 - info->src.y0, &box);
 359
 360         r600_blitter_begin(ctx, R600_COPY_TEXTURE);
 361         util_blitter_copy_texture(rctx->blitter, info->dst.res, info->dst.level,
 362                                   ~0, info->dst.x0, info->dst.y0, info->dst.layer,
 363                                   tmp, 0, 0, &box);
 364         r600_blitter_end(ctx);
 365
 366         pipe_resource_reference(&tmp, NULL);
 367 }
 368
 369 static void r600_resource_resolve(struct pipe_context *ctx,
 370                                   const struct pipe_resolve_info *info)
 371 {
 372         /* make sure we're doing a resolve operation */
 373         assert(info->src.res->nr_samples > 1);
 374         assert(info->dst.res->nr_samples <= 1);
 375
 376         /* limitations of multisample resources */
 377         assert(info->src.res->last_level == 0);
 378         assert(info->src.res->target == PIPE_TEXTURE_2D ||
 379                info->src.res->target == PIPE_TEXTURE_2D_ARRAY);
 380
 381         /* check if the resolve box is valid */
 382         assert(info->dst.x0 < info->dst.x1);
 383         assert(info->dst.y0 < info->dst.y1);
 384
 385         /* scaled resolve isn't allowed */
 386         assert(abs(info->dst.x0 - info->dst.x1) ==
 387                abs(info->src.x0 - info->src.x1));
 388         assert(abs(info->dst.y0 - info->dst.y1) ==
 389                abs(info->src.y0 - info->src.y1));
 390
 391         if ((info->mask & PIPE_MASK_ZS) ||
 392             util_format_is_pure_integer(info->src.res->format)) {
 393                 r600_copy_first_sample(ctx, info);
 394         } else {
 395                 r600_color_resolve(ctx, info);
 396         }
 397 }
 398
 399 static void r600_clear(struct pipe_context *ctx, unsigned buffers,
 400                        const union pipe_color_union *color,
 401                        double depth, unsigned stencil)
 402 {
 403         struct r600_context *rctx = (struct r600_context *)ctx;
 404         struct pipe_framebuffer_state *fb = &rctx->framebuffer;
 405
 406         r600_blitter_begin(ctx, R600_CLEAR);
 407         util_blitter_clear(rctx->blitter, fb->width, fb->height,
 408                            fb->nr_cbufs, buffers, fb->nr_cbufs ? fb->cbufs[0]->format : PIPE_FORMAT_NONE,
 409                            color, depth, stencil);
 410         r600_blitter_end(ctx);
 411 }
 412
 413 static void r600_clear_render_target(struct pipe_context *ctx,
 414                                      struct pipe_surface *dst,
 415                                      const union pipe_color_union *color,
 416                                      unsigned dstx, unsigned dsty,
 417                                      unsigned width, unsigned height)
 418 {
 419         struct r600_context *rctx = (struct r600_context *)ctx;
 420
 421         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 422         util_blitter_clear_render_target(rctx->blitter, dst, color,
 423                                          dstx, dsty, width, height);
 424         r600_blitter_end(ctx);
 425 }
 426
 427 static void r600_clear_depth_stencil(struct pipe_context *ctx,
 428                                      struct pipe_surface *dst,
 429                                      unsigned clear_flags,
 430                                      double depth,
 431                                      unsigned stencil,
 432                                      unsigned dstx, unsigned dsty,
 433                                      unsigned width, unsigned height)
 434 {
 435         struct r600_context *rctx = (struct r600_context *)ctx;
 436
 437         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 438         util_blitter_clear_depth_stencil(rctx->blitter, dst, clear_flags, depth, stencil,
 439                                          dstx, dsty, width, height);
 440         r600_blitter_end(ctx);
 441 }
 442
 443 void r600_copy_buffer(struct pipe_context *ctx, struct
 444                       pipe_resource *dst, unsigned dstx,
 445                       struct pipe_resource *src, const struct pipe_box *src_box)
 446 {
 447         struct r600_context *rctx = (struct r600_context*)ctx;
 448
 449         if (rctx->screen->has_streamout &&
 450             /* Require dword alignment. */
 451             dstx % 4 == 0 && src_box->x % 4 == 0 && src_box->width % 4 == 0) {
 452                 r600_blitter_begin(ctx, R600_COPY_BUFFER);
 453                 util_blitter_copy_buffer(rctx->blitter, dst, dstx, src, src_box->x, src_box->width);
 454                 r600_blitter_end(ctx);
 455         } else {
 456                 util_resource_copy_region(ctx, dst, 0, dstx, 0, 0, src, 0, src_box);
 457         }
 458 }
 459
 460 struct texture_orig_info {
 461         unsigned format;
 462         unsigned width0;
 463         unsigned height0;
 464         unsigned npix_x;
 465         unsigned npix_y;
 466         unsigned npix0_x;
 467         unsigned npix0_y;
 468 };
 469
 470 static void r600_compressed_to_blittable(struct pipe_resource *tex,
 471                                    unsigned level,
 472                                    struct texture_orig_info *orig)
 473 {
 474         struct r600_texture *rtex = (struct r600_texture*)tex;
 475         unsigned pixsize = util_format_get_blocksize(rtex->resource.b.b.format);
 476         int new_format;
 477         int new_height, new_width;
 478
 479         orig->format = tex->format;
 480         orig->width0 = tex->width0;
 481         orig->height0 = tex->height0;
 482         orig->npix0_x = rtex->surface.level[0].npix_x;
 483         orig->npix0_y = rtex->surface.level[0].npix_y;
 484         orig->npix_x = rtex->surface.level[level].npix_x;
 485         orig->npix_y = rtex->surface.level[level].npix_y;
 486
 487         if (pixsize == 8)
 488                 new_format = PIPE_FORMAT_R16G16B16A16_UINT; /* 64-bit block */
 489         else
 490                 new_format = PIPE_FORMAT_R32G32B32A32_UINT; /* 128-bit block */
 491
 492         new_width = util_format_get_nblocksx(tex->format, orig->width0);
 493         new_height = util_format_get_nblocksy(tex->format, orig->height0);
 494
 495         tex->width0 = new_width;
 496         tex->height0 = new_height;
 497         tex->format = new_format;
 498         rtex->surface.level[0].npix_x = util_format_get_nblocksx(orig->format, orig->npix0_x);
 499         rtex->surface.level[0].npix_y = util_format_get_nblocksy(orig->format, orig->npix0_y);
 500         rtex->surface.level[level].npix_x = util_format_get_nblocksx(orig->format, orig->npix_x);
 501         rtex->surface.level[level].npix_y = util_format_get_nblocksy(orig->format, orig->npix_y);
 502 }
 503
 504 static void r600_change_format(struct pipe_resource *tex,
 505                                unsigned level,
 506                                struct texture_orig_info *orig,
 507                                enum pipe_format format)
 508 {
 509         struct r600_texture *rtex = (struct r600_texture*)tex;
 510
 511         orig->format = tex->format;
 512         orig->width0 = tex->width0;
 513         orig->height0 = tex->height0;
 514         orig->npix0_x = rtex->surface.level[0].npix_x;
 515         orig->npix0_y = rtex->surface.level[0].npix_y;
 516         orig->npix_x = rtex->surface.level[level].npix_x;
 517         orig->npix_y = rtex->surface.level[level].npix_y;
 518
 519         tex->format = format;
 520 }
 521
 522 static void r600_reset_blittable_to_orig(struct pipe_resource *tex,
 523                                          unsigned level,
 524                                          struct texture_orig_info *orig)
 525 {
 526         struct r600_texture *rtex = (struct r600_texture*)tex;
 527
 528         tex->format = orig->format;
 529         tex->width0 = orig->width0;
 530         tex->height0 = orig->height0;
 531         rtex->surface.level[0].npix_x = orig->npix0_x;
 532         rtex->surface.level[0].npix_y = orig->npix0_y;
 533         rtex->surface.level[level].npix_x = orig->npix_x;
 534         rtex->surface.level[level].npix_y = orig->npix_y;
 535 }
 536
 537 static void r600_resource_copy_region(struct pipe_context *ctx,
 538                                       struct pipe_resource *dst,
 539                                       unsigned dst_level,
 540                                       unsigned dstx, unsigned dsty, unsigned dstz,
 541                                       struct pipe_resource *src,
 542                                       unsigned src_level,
 543                                       const struct pipe_box *src_box)
 544 {
 545         struct r600_context *rctx = (struct r600_context *)ctx;
 546         struct r600_texture *rsrc = (struct r600_texture*)src;
 547         struct texture_orig_info orig_info[2];
 548         struct pipe_box sbox;
 549         const struct pipe_box *psbox = src_box;
 550         boolean restore_orig[2];
 551         unsigned last_sample, i;
 552
 553         memset(orig_info, 0, sizeof(orig_info));
 554
 555         /* Handle buffers first. */
 556         if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
 557                 r600_copy_buffer(ctx, dst, dstx, src, src_box);
 558                 return;
 559         }
 560
 561         assert(u_max_sample(dst) == u_max_sample(src));
 562         last_sample = u_max_sample(dst);
 563
 564         /* This must be done before entering u_blitter to avoid recursion. */
 565         if (rsrc->is_depth && !rsrc->is_flushing_texture) {
 566                 if (!r600_init_flushed_depth_texture(ctx, src, NULL))
 567                         return; /* error */
 568
 569                 r600_blit_uncompress_depth(ctx, rsrc, NULL,
 570                                            src_level, src_level,
 571                                            src_box->z, src_box->z + src_box->depth - 1,
 572                                            0, u_max_sample(src));
 573         }
 574
 575         restore_orig[0] = restore_orig[1] = FALSE;
 576
 577         if (util_format_is_compressed(src->format) &&
 578             util_format_is_compressed(dst->format)) {
 579                 r600_compressed_to_blittable(src, src_level, &orig_info[0]);
 580                 restore_orig[0] = TRUE;
 581                 sbox.x = util_format_get_nblocksx(orig_info[0].format, src_box->x);
 582                 sbox.y = util_format_get_nblocksy(orig_info[0].format, src_box->y);
 583                 sbox.z = src_box->z;
 584                 sbox.width = util_format_get_nblocksx(orig_info[0].format, src_box->width);
 585                 sbox.height = util_format_get_nblocksy(orig_info[0].format, src_box->height);
 586                 sbox.depth = src_box->depth;
 587                 psbox=&sbox;
 588
 589                 r600_compressed_to_blittable(dst, dst_level, &orig_info[1]);
 590                 restore_orig[1] = TRUE;
 591                 /* translate the dst box as well */
 592                 dstx = util_format_get_nblocksx(orig_info[1].format, dstx);
 593                 dsty = util_format_get_nblocksy(orig_info[1].format, dsty);
 594         } else if (!util_blitter_is_copy_supported(rctx->blitter, dst, src,
 595                                                    PIPE_MASK_RGBAZS)) {
 596                 unsigned blocksize = util_format_get_blocksize(src->format);
 597
 598                 switch (blocksize) {
 599                 case 1:
 600                         r600_change_format(src, src_level, &orig_info[0],
 601                                            PIPE_FORMAT_R8_UNORM);
 602                         r600_change_format(dst, dst_level, &orig_info[1],
 603                                            PIPE_FORMAT_R8_UNORM);
 604                         break;
 605                 case 4:
 606                         r600_change_format(src, src_level, &orig_info[0],
 607                                            PIPE_FORMAT_R8G8B8A8_UNORM);
 608                         r600_change_format(dst, dst_level, &orig_info[1],
 609                                            PIPE_FORMAT_R8G8B8A8_UNORM);
 610                         break;
 611                 default:
 612                         fprintf(stderr, "Unhandled format %s with blocksize %u\n",
 613                                 util_format_short_name(src->format), blocksize);
 614                         assert(0);
 615                 }
 616                 restore_orig[0] = TRUE;
 617                 restore_orig[1] = TRUE;
 618         }
 619
 620         for (i = 0; i <= last_sample; i++) {
 621                 r600_blitter_begin(ctx, R600_COPY_TEXTURE);
 622                 util_blitter_copy_texture(rctx->blitter, dst, dst_level, 1 << i, dstx, dsty, dstz,
 623                                           src, src_level, i, psbox);
 624                 r600_blitter_end(ctx);
 625         }
 626
 627         if (restore_orig[0])
 628                 r600_reset_blittable_to_orig(src, src_level, &orig_info[0]);
 629
 630         if (restore_orig[1])
 631                 r600_reset_blittable_to_orig(dst, dst_level, &orig_info[1]);
 632 }
 633
 634 void r600_init_blit_functions(struct r600_context *rctx)
 635 {
 636         rctx->context.clear = r600_clear;
 637         rctx->context.clear_render_target = r600_clear_render_target;
 638         rctx->context.clear_depth_stencil = r600_clear_depth_stencil;
 639         rctx->context.resource_copy_region = r600_resource_copy_region;
 640         rctx->context.resource_resolve = r600_resource_resolve;
 641 }