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
  47 static void r600_blitter_begin(struct pipe_context *ctx, enum r600_blitter_op op)
  48 {
  49         struct r600_context *rctx = (struct r600_context *)ctx;
  50
  51         r600_suspend_nontimer_queries(rctx);
  52
  53         util_blitter_save_vertex_buffers(rctx->blitter,
  54                                          util_last_bit(rctx->vertex_buffer_state.enabled_mask),
  55                                          rctx->vertex_buffer_state.vb);
  56         util_blitter_save_vertex_elements(rctx->blitter, rctx->vertex_elements);
  57         util_blitter_save_vertex_shader(rctx->blitter, rctx->vs_shader);
  58         util_blitter_save_so_targets(rctx->blitter, rctx->num_so_targets,
  59                                      (struct pipe_stream_output_target**)rctx->so_targets);
  60         util_blitter_save_rasterizer(rctx->blitter, rctx->states[R600_PIPE_STATE_RASTERIZER]);
  61
  62         if (op & R600_SAVE_FRAGMENT_STATE) {
  63                 if (rctx->states[R600_PIPE_STATE_VIEWPORT]) {
  64                         util_blitter_save_viewport(rctx->blitter, &rctx->viewport);
  65                 }
  66                 util_blitter_save_fragment_shader(rctx->blitter, rctx->ps_shader);
  67                 util_blitter_save_blend(rctx->blitter, rctx->states[R600_PIPE_STATE_BLEND]);
  68                 util_blitter_save_depth_stencil_alpha(rctx->blitter, rctx->states[R600_PIPE_STATE_DSA]);
  69                 if (rctx->states[R600_PIPE_STATE_STENCIL_REF]) {
  70                         util_blitter_save_stencil_ref(rctx->blitter, &rctx->stencil_ref);
  71                 }
  72                 util_blitter_save_sample_mask(rctx->blitter, rctx->sample_mask.sample_mask);
  73         }
  74
  75         if (op & R600_SAVE_FRAMEBUFFER)
  76                 util_blitter_save_framebuffer(rctx->blitter, &rctx->framebuffer);
  77
  78         if (op & R600_SAVE_TEXTURES) {
  79                 util_blitter_save_fragment_sampler_states(
  80                         rctx->blitter, rctx->ps_samplers.n_samplers,
  81                         (void**)rctx->ps_samplers.samplers);
  82
  83                 util_blitter_save_fragment_sampler_views(
  84                         rctx->blitter, util_last_bit(rctx->ps_samplers.views.enabled_mask),
  85                         (struct pipe_sampler_view**)rctx->ps_samplers.views.views);
  86         }
  87
  88         if ((op & R600_DISABLE_RENDER_COND) && rctx->current_render_cond) {
  89                 rctx->saved_render_cond = rctx->current_render_cond;
  90                 rctx->saved_render_cond_mode = rctx->current_render_cond_mode;
  91                 rctx->context.render_condition(&rctx->context, NULL, 0);
  92         }
  93
  94 }
  95
  96 static void r600_blitter_end(struct pipe_context *ctx)
  97 {
  98         struct r600_context *rctx = (struct r600_context *)ctx;
  99         if (rctx->saved_render_cond) {
 100                 rctx->context.render_condition(&rctx->context,
 101                                                rctx->saved_render_cond,
 102                                                rctx->saved_render_cond_mode);
 103                 rctx->saved_render_cond = NULL;
 104         }
 105         r600_resume_nontimer_queries(rctx);
 106 }
 107
 108 static unsigned u_max_layer(struct pipe_resource *r, unsigned level)
 109 {
 110         switch (r->target) {
 111         case PIPE_TEXTURE_CUBE:
 112                 return 6 - 1;
 113         case PIPE_TEXTURE_3D:
 114                 return u_minify(r->depth0, level) - 1;
 115         case PIPE_TEXTURE_1D_ARRAY:
 116         case PIPE_TEXTURE_2D_ARRAY:
 117                 return r->array_size - 1;
 118         default:
 119                 return 0;
 120         }
 121 }
 122
 123 void r600_blit_uncompress_depth(struct pipe_context *ctx,
 124                 struct r600_resource_texture *texture,
 125                 struct r600_resource_texture *staging,
 126                 unsigned first_level, unsigned last_level,
 127                 unsigned first_layer, unsigned last_layer)
 128 {
 129         struct r600_context *rctx = (struct r600_context *)ctx;
 130         unsigned layer, level, checked_last_layer, max_layer;
 131         float depth = 1.0f;
 132         struct r600_resource_texture *flushed_depth_texture = staging ?
 133                         staging : texture->flushed_depth_texture;
 134         const struct util_format_description *desc =
 135                 util_format_description(texture->resource.b.b.format);
 136
 137         if (!staging && !texture->dirty_db_mask)
 138                 return;
 139
 140         if (rctx->family == CHIP_RV610 || rctx->family == CHIP_RV630 ||
 141             rctx->family == CHIP_RV620 || rctx->family == CHIP_RV635)
 142                 depth = 0.0f;
 143
 144         /* Enable decompression in DB_RENDER_CONTROL */
 145         rctx->db_misc_state.flush_depthstencil_through_cb = true;
 146         rctx->db_misc_state.copy_depth = util_format_has_depth(desc);
 147         rctx->db_misc_state.copy_stencil = util_format_has_stencil(desc);
 148         r600_atom_dirty(rctx, &rctx->db_misc_state.atom);
 149
 150         for (level = first_level; level <= last_level; level++) {
 151                 if (!staging && !(texture->dirty_db_mask & (1 << level)))
 152                         continue;
 153
 154                 /* The smaller the mipmap level, the less layers there are
 155                  * as far as 3D textures are concerned. */
 156                 max_layer = u_max_layer(&texture->resource.b.b, level);
 157                 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
 158
 159                 for (layer = first_layer; layer <= checked_last_layer; layer++) {
 160                         struct pipe_surface *zsurf, *cbsurf, surf_tmpl;
 161
 162                         surf_tmpl.format = texture->real_format;
 163                         surf_tmpl.u.tex.level = level;
 164                         surf_tmpl.u.tex.first_layer = layer;
 165                         surf_tmpl.u.tex.last_layer = layer;
 166                         surf_tmpl.usage = PIPE_BIND_DEPTH_STENCIL;
 167
 168                         zsurf = ctx->create_surface(ctx, &texture->resource.b.b, &surf_tmpl);
 169
 170                         surf_tmpl.format = flushed_depth_texture->real_format;
 171                         surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
 172                         cbsurf = ctx->create_surface(ctx,
 173                                         (struct pipe_resource*)flushed_depth_texture, &surf_tmpl);
 174
 175                         r600_blitter_begin(ctx, R600_DECOMPRESS);
 176                         util_blitter_custom_depth_stencil(rctx->blitter, zsurf, cbsurf, rctx->custom_dsa_flush, depth);
 177                         r600_blitter_end(ctx);
 178
 179                         pipe_surface_reference(&zsurf, NULL);
 180                         pipe_surface_reference(&cbsurf, NULL);
 181                 }
 182
 183                 /* The texture will always be dirty if some layers aren't flushed.
 184                  * I don't think this case can occur though. */
 185                 if (!staging && first_layer == 0 && last_layer == max_layer) {
 186                         texture->dirty_db_mask &= ~(1 << level);
 187                 }
 188         }
 189
 190         /* reenable compression in DB_RENDER_CONTROL */
 191         rctx->db_misc_state.flush_depthstencil_through_cb = false;
 192         r600_atom_dirty(rctx, &rctx->db_misc_state.atom);
 193 }
 194
 195 void r600_flush_depth_textures(struct r600_context *rctx,
 196                                struct r600_samplerview_state *textures)
 197 {
 198         unsigned i;
 199         unsigned depth_texture_mask = textures->depth_texture_mask;
 200
 201         while (depth_texture_mask) {
 202                 struct pipe_sampler_view *view;
 203                 struct r600_resource_texture *tex;
 204
 205                 i = u_bit_scan(&depth_texture_mask);
 206
 207                 view = &textures->views[i]->base;
 208                 assert(view);
 209
 210                 tex = (struct r600_resource_texture *)view->texture;
 211                 assert(tex->is_depth && !tex->is_flushing_texture);
 212
 213                 r600_blit_uncompress_depth(&rctx->context, tex, NULL,
 214                                            view->u.tex.first_level,
 215                                            view->u.tex.last_level,
 216                                            0,
 217                                            u_max_layer(&tex->resource.b.b, view->u.tex.first_level));
 218         }
 219 }
 220
 221 static void r600_clear(struct pipe_context *ctx, unsigned buffers,
 222                        const union pipe_color_union *color,
 223                        double depth, unsigned stencil)
 224 {
 225         struct r600_context *rctx = (struct r600_context *)ctx;
 226         struct pipe_framebuffer_state *fb = &rctx->framebuffer;
 227
 228         r600_blitter_begin(ctx, R600_CLEAR);
 229         util_blitter_clear(rctx->blitter, fb->width, fb->height,
 230                            fb->nr_cbufs, buffers, fb->nr_cbufs ? fb->cbufs[0]->format : PIPE_FORMAT_NONE,
 231                            color, depth, stencil);
 232         r600_blitter_end(ctx);
 233 }
 234
 235 static void r600_clear_render_target(struct pipe_context *ctx,
 236                                      struct pipe_surface *dst,
 237                                      const union pipe_color_union *color,
 238                                      unsigned dstx, unsigned dsty,
 239                                      unsigned width, unsigned height)
 240 {
 241         struct r600_context *rctx = (struct r600_context *)ctx;
 242
 243         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 244         util_blitter_clear_render_target(rctx->blitter, dst, color,
 245                                          dstx, dsty, width, height);
 246         r600_blitter_end(ctx);
 247 }
 248
 249 static void r600_clear_depth_stencil(struct pipe_context *ctx,
 250                                      struct pipe_surface *dst,
 251                                      unsigned clear_flags,
 252                                      double depth,
 253                                      unsigned stencil,
 254                                      unsigned dstx, unsigned dsty,
 255                                      unsigned width, unsigned height)
 256 {
 257         struct r600_context *rctx = (struct r600_context *)ctx;
 258
 259         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 260         util_blitter_clear_depth_stencil(rctx->blitter, dst, clear_flags, depth, stencil,
 261                                          dstx, dsty, width, height);
 262         r600_blitter_end(ctx);
 263 }
 264
 265 void r600_copy_buffer(struct pipe_context *ctx, struct
 266                       pipe_resource *dst, unsigned dstx,
 267                       struct pipe_resource *src, const struct pipe_box *src_box)
 268 {
 269         struct r600_context *rctx = (struct r600_context*)ctx;
 270
 271         if (rctx->screen->has_streamout &&
 272             /* Require dword alignment. */
 273             dstx % 4 == 0 && src_box->x % 4 == 0 && src_box->width % 4 == 0) {
 274                 r600_blitter_begin(ctx, R600_COPY_BUFFER);
 275                 util_blitter_copy_buffer(rctx->blitter, dst, dstx, src, src_box->x, src_box->width);
 276                 r600_blitter_end(ctx);
 277         } else {
 278                 util_resource_copy_region(ctx, dst, 0, dstx, 0, 0, src, 0, src_box);
 279         }
 280 }
 281
 282 struct texture_orig_info {
 283         unsigned format;
 284         unsigned width0;
 285         unsigned height0;
 286         unsigned npix_x;
 287         unsigned npix_y;
 288         unsigned npix0_x;
 289         unsigned npix0_y;
 290 };
 291
 292 static void r600_compressed_to_blittable(struct pipe_resource *tex,
 293                                    unsigned level,
 294                                    struct texture_orig_info *orig)
 295 {
 296         struct r600_resource_texture *rtex = (struct r600_resource_texture*)tex;
 297         unsigned pixsize = util_format_get_blocksize(rtex->real_format);
 298         int new_format;
 299         int new_height, new_width;
 300
 301         orig->format = tex->format;
 302         orig->width0 = tex->width0;
 303         orig->height0 = tex->height0;
 304         orig->npix0_x = rtex->surface.level[0].npix_x;
 305         orig->npix0_y = rtex->surface.level[0].npix_y;
 306         orig->npix_x = rtex->surface.level[level].npix_x;
 307         orig->npix_y = rtex->surface.level[level].npix_y;
 308
 309         if (pixsize == 8)
 310                 new_format = PIPE_FORMAT_R16G16B16A16_UINT; /* 64-bit block */
 311         else
 312                 new_format = PIPE_FORMAT_R32G32B32A32_UINT; /* 128-bit block */
 313
 314         new_width = util_format_get_nblocksx(tex->format, orig->width0);
 315         new_height = util_format_get_nblocksy(tex->format, orig->height0);
 316
 317         tex->width0 = new_width;
 318         tex->height0 = new_height;
 319         tex->format = new_format;
 320         rtex->surface.level[0].npix_x = util_format_get_nblocksx(orig->format, orig->npix0_x);
 321         rtex->surface.level[0].npix_y = util_format_get_nblocksy(orig->format, orig->npix0_y);
 322         rtex->surface.level[level].npix_x = util_format_get_nblocksx(orig->format, orig->npix_x);
 323         rtex->surface.level[level].npix_y = util_format_get_nblocksy(orig->format, orig->npix_y);
 324 }
 325
 326 static void r600_change_format(struct pipe_resource *tex,
 327                                unsigned level,
 328                                struct texture_orig_info *orig,
 329                                enum pipe_format format)
 330 {
 331         struct r600_resource_texture *rtex = (struct r600_resource_texture*)tex;
 332
 333         orig->format = tex->format;
 334         orig->width0 = tex->width0;
 335         orig->height0 = tex->height0;
 336         orig->npix0_x = rtex->surface.level[0].npix_x;
 337         orig->npix0_y = rtex->surface.level[0].npix_y;
 338         orig->npix_x = rtex->surface.level[level].npix_x;
 339         orig->npix_y = rtex->surface.level[level].npix_y;
 340
 341         tex->format = format;
 342 }
 343
 344 static void r600_reset_blittable_to_orig(struct pipe_resource *tex,
 345                                          unsigned level,
 346                                          struct texture_orig_info *orig)
 347 {
 348         struct r600_resource_texture *rtex = (struct r600_resource_texture*)tex;
 349
 350         tex->format = orig->format;
 351         tex->width0 = orig->width0;
 352         tex->height0 = orig->height0;
 353         rtex->surface.level[0].npix_x = orig->npix0_x;
 354         rtex->surface.level[0].npix_y = orig->npix0_y;
 355         rtex->surface.level[level].npix_x = orig->npix_x;
 356         rtex->surface.level[level].npix_y = orig->npix_y;
 357 }
 358
 359 static void r600_resource_copy_region(struct pipe_context *ctx,
 360                                       struct pipe_resource *dst,
 361                                       unsigned dst_level,
 362                                       unsigned dstx, unsigned dsty, unsigned dstz,
 363                                       struct pipe_resource *src,
 364                                       unsigned src_level,
 365                                       const struct pipe_box *src_box)
 366 {
 367         struct r600_context *rctx = (struct r600_context *)ctx;
 368         struct r600_resource_texture *rsrc = (struct r600_resource_texture*)src;
 369         struct texture_orig_info orig_info[2];
 370         struct pipe_box sbox;
 371         const struct pipe_box *psbox = src_box;
 372         boolean restore_orig[2];
 373
 374         memset(orig_info, 0, sizeof(orig_info));
 375
 376         /* Handle buffers first. */
 377         if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
 378                 r600_copy_buffer(ctx, dst, dstx, src, src_box);
 379                 return;
 380         }
 381
 382         /* This must be done before entering u_blitter to avoid recursion. */
 383         if (rsrc->is_depth && !rsrc->is_flushing_texture) {
 384                 if (!r600_init_flushed_depth_texture(ctx, src, NULL))
 385                         return; /* error */
 386
 387                 r600_blit_uncompress_depth(ctx, rsrc, NULL,
 388                                            src_level, src_level,
 389                                            src_box->z, src_box->z + src_box->depth - 1);
 390         }
 391
 392         restore_orig[0] = restore_orig[1] = FALSE;
 393
 394         if (util_format_is_compressed(src->format) &&
 395             util_format_is_compressed(dst->format)) {
 396                 r600_compressed_to_blittable(src, src_level, &orig_info[0]);
 397                 restore_orig[0] = TRUE;
 398                 sbox.x = util_format_get_nblocksx(orig_info[0].format, src_box->x);
 399                 sbox.y = util_format_get_nblocksy(orig_info[0].format, src_box->y);
 400                 sbox.z = src_box->z;
 401                 sbox.width = util_format_get_nblocksx(orig_info[0].format, src_box->width);
 402                 sbox.height = util_format_get_nblocksy(orig_info[0].format, src_box->height);
 403                 sbox.depth = src_box->depth;
 404                 psbox=&sbox;
 405
 406                 r600_compressed_to_blittable(dst, dst_level, &orig_info[1]);
 407                 restore_orig[1] = TRUE;
 408                 /* translate the dst box as well */
 409                 dstx = util_format_get_nblocksx(orig_info[1].format, dstx);
 410                 dsty = util_format_get_nblocksy(orig_info[1].format, dsty);
 411         } else if (!util_blitter_is_copy_supported(rctx->blitter, dst, src,
 412                                                    PIPE_MASK_RGBAZS)) {
 413                 unsigned blocksize = util_format_get_blocksize(src->format);
 414
 415                 switch (blocksize) {
 416                 case 1:
 417                         r600_change_format(src, src_level, &orig_info[0],
 418                                            PIPE_FORMAT_R8_UNORM);
 419                         r600_change_format(dst, dst_level, &orig_info[1],
 420                                            PIPE_FORMAT_R8_UNORM);
 421                         break;
 422                 case 4:
 423                         r600_change_format(src, src_level, &orig_info[0],
 424                                            PIPE_FORMAT_R8G8B8A8_UNORM);
 425                         r600_change_format(dst, dst_level, &orig_info[1],
 426                                            PIPE_FORMAT_R8G8B8A8_UNORM);
 427                         break;
 428                 default:
 429                         fprintf(stderr, "Unhandled format %s with blocksize %u\n",
 430                                 util_format_short_name(src->format), blocksize);
 431                         assert(0);
 432                 }
 433                 restore_orig[0] = TRUE;
 434                 restore_orig[1] = TRUE;
 435         }
 436
 437         r600_blitter_begin(ctx, R600_COPY_TEXTURE);
 438         util_blitter_copy_texture(rctx->blitter, dst, dst_level, ~0, dstx, dsty, dstz,
 439                                   src, src_level, 0, psbox);
 440         r600_blitter_end(ctx);
 441
 442         if (restore_orig[0])
 443                 r600_reset_blittable_to_orig(src, src_level, &orig_info[0]);
 444
 445         if (restore_orig[1])
 446                 r600_reset_blittable_to_orig(dst, dst_level, &orig_info[1]);
 447 }
 448
 449 void r600_init_blit_functions(struct r600_context *rctx)
 450 {
 451         rctx->context.clear = r600_clear;
 452         rctx->context.clear_render_target = r600_clear_render_target;
 453         rctx->context.clear_depth_stencil = r600_clear_depth_stencil;
 454         rctx->context.resource_copy_region = r600_resource_copy_region;
 455 }