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_TEXTURES      = 1,
  31         R600_SAVE_FRAMEBUFFER   = 2,
  32         R600_DISABLE_RENDER_COND = 4,
  33
  34         R600_CLEAR         = 0,
  35
  36         R600_CLEAR_SURFACE = R600_SAVE_FRAMEBUFFER,
  37
  38         R600_COPY          = R600_SAVE_FRAMEBUFFER | R600_SAVE_TEXTURES |
  39                              R600_DISABLE_RENDER_COND,
  40
  41         R600_DECOMPRESS    = R600_SAVE_FRAMEBUFFER | R600_DISABLE_RENDER_COND,
  42 };
  43
  44 static void r600_blitter_begin(struct pipe_context *ctx, enum r600_blitter_op op)
  45 {
  46         struct r600_context *rctx = (struct r600_context *)ctx;
  47
  48         r600_suspend_nontimer_queries(rctx);
  49
  50         util_blitter_save_blend(rctx->blitter, rctx->states[R600_PIPE_STATE_BLEND]);
  51         util_blitter_save_depth_stencil_alpha(rctx->blitter, rctx->states[R600_PIPE_STATE_DSA]);
  52         if (rctx->states[R600_PIPE_STATE_STENCIL_REF]) {
  53                 util_blitter_save_stencil_ref(rctx->blitter, &rctx->stencil_ref);
  54         }
  55         util_blitter_save_rasterizer(rctx->blitter, rctx->states[R600_PIPE_STATE_RASTERIZER]);
  56         util_blitter_save_fragment_shader(rctx->blitter, rctx->ps_shader);
  57         util_blitter_save_vertex_shader(rctx->blitter, rctx->vs_shader);
  58         util_blitter_save_vertex_elements(rctx->blitter, rctx->vertex_elements);
  59         if (rctx->states[R600_PIPE_STATE_VIEWPORT]) {
  60                 util_blitter_save_viewport(rctx->blitter, &rctx->viewport);
  61         }
  62         util_blitter_save_vertex_buffers(rctx->blitter,
  63                                          rctx->nr_vertex_buffers,
  64                                          rctx->vertex_buffer);
  65         util_blitter_save_so_targets(rctx->blitter, rctx->num_so_targets,
  66                                      (struct pipe_stream_output_target**)rctx->so_targets);
  67
  68         if (op & R600_SAVE_FRAMEBUFFER)
  69                 util_blitter_save_framebuffer(rctx->blitter, &rctx->framebuffer);
  70
  71         if (op & R600_SAVE_TEXTURES) {
  72                 util_blitter_save_fragment_sampler_states(
  73                         rctx->blitter, rctx->ps_samplers.n_samplers,
  74                         (void**)rctx->ps_samplers.samplers);
  75
  76                 util_blitter_save_fragment_sampler_views(
  77                         rctx->blitter, rctx->ps_samplers.n_views,
  78                         (struct pipe_sampler_view**)rctx->ps_samplers.views);
  79         }
  80
  81         if ((op & R600_DISABLE_RENDER_COND) && rctx->current_render_cond) {
  82                 rctx->saved_render_cond = rctx->current_render_cond;
  83                 rctx->saved_render_cond_mode = rctx->current_render_cond_mode;
  84                 rctx->context.render_condition(&rctx->context, NULL, 0);
  85         }
  86
  87 }
  88
  89 static void r600_blitter_end(struct pipe_context *ctx)
  90 {
  91         struct r600_context *rctx = (struct r600_context *)ctx;
  92         if (rctx->saved_render_cond) {
  93                 rctx->context.render_condition(&rctx->context,
  94                                                rctx->saved_render_cond,
  95                                                rctx->saved_render_cond_mode);
  96                 rctx->saved_render_cond = NULL;
  97         }
  98         r600_resume_nontimer_queries(rctx);
  99 }
 100
 101 static unsigned u_max_layer(struct pipe_resource *r, unsigned level)
 102 {
 103         switch (r->target) {
 104         case PIPE_TEXTURE_CUBE:
 105                 return 6 - 1;
 106         case PIPE_TEXTURE_3D:
 107                 return u_minify(r->depth0, level) - 1;
 108         case PIPE_TEXTURE_1D_ARRAY:
 109         case PIPE_TEXTURE_2D_ARRAY:
 110                 return r->array_size - 1;
 111         default:
 112                 return 0;
 113         }
 114 }
 115
 116 void r600_blit_uncompress_depth(struct pipe_context *ctx,
 117                 struct r600_resource_texture *texture,
 118                 struct r600_resource_texture *staging,
 119                 unsigned first_level, unsigned last_level,
 120                 unsigned first_layer, unsigned last_layer)
 121 {
 122         struct r600_context *rctx = (struct r600_context *)ctx;
 123         unsigned layer, level, checked_last_layer, max_layer;
 124         float depth = 1.0f;
 125         struct r600_resource_texture *flushed_depth_texture = staging ?
 126                         staging : texture->flushed_depth_texture;
 127
 128         if (!staging && !texture->dirty_db_mask)
 129                 return;
 130
 131         if (rctx->family == CHIP_RV610 || rctx->family == CHIP_RV630 ||
 132             rctx->family == CHIP_RV620 || rctx->family == CHIP_RV635)
 133                 depth = 0.0f;
 134
 135         if (rctx->chip_class <= R700 &&
 136             !rctx->db_misc_state.flush_depthstencil_through_cb) {
 137                 /* Enable decompression in DB_RENDER_CONTROL */
 138                 rctx->db_misc_state.flush_depthstencil_through_cb = true;
 139                 r600_atom_dirty(rctx, &rctx->db_misc_state.atom);
 140         }
 141
 142         for (level = first_level; level <= last_level; level++) {
 143                 if (!staging && !(texture->dirty_db_mask & (1 << level)))
 144                         continue;
 145
 146                 /* The smaller the mipmap level, the less layers there are
 147                  * as far as 3D textures are concerned. */
 148                 max_layer = u_max_layer(&texture->resource.b.b, level);
 149                 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
 150
 151                 for (layer = first_layer; layer <= checked_last_layer; layer++) {
 152                         struct pipe_surface *zsurf, *cbsurf, surf_tmpl;
 153
 154                         surf_tmpl.format = texture->real_format;
 155                         surf_tmpl.u.tex.level = level;
 156                         surf_tmpl.u.tex.first_layer = layer;
 157                         surf_tmpl.u.tex.last_layer = layer;
 158                         surf_tmpl.usage = PIPE_BIND_DEPTH_STENCIL;
 159
 160                         zsurf = ctx->create_surface(ctx, &texture->resource.b.b, &surf_tmpl);
 161
 162                         surf_tmpl.format = flushed_depth_texture->real_format;
 163                         surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
 164                         cbsurf = ctx->create_surface(ctx,
 165                                         (struct pipe_resource*)flushed_depth_texture, &surf_tmpl);
 166
 167                         r600_blitter_begin(ctx, R600_DECOMPRESS);
 168                         util_blitter_custom_depth_stencil(rctx->blitter, zsurf, cbsurf, rctx->custom_dsa_flush, depth);
 169                         r600_blitter_end(ctx);
 170
 171                         pipe_surface_reference(&zsurf, NULL);
 172                         pipe_surface_reference(&cbsurf, NULL);
 173                 }
 174
 175                 /* The texture will always be dirty if some layers aren't flushed.
 176                  * I don't think this case can occur though. */
 177                 if (!staging && first_layer == 0 && last_layer == max_layer) {
 178                         texture->dirty_db_mask &= ~(1 << level);
 179                 }
 180         }
 181
 182         if (rctx->chip_class <= R700) {
 183                 /* Disable decompression in DB_RENDER_CONTROL */
 184                 rctx->db_misc_state.flush_depthstencil_through_cb = false;
 185                 r600_atom_dirty(rctx, &rctx->db_misc_state.atom);
 186         }
 187 }
 188
 189 static void r600_flush_depth_textures(struct r600_context *rctx,
 190                                       struct r600_textures_info *textures)
 191 {
 192         unsigned i;
 193
 194         for (i = 0; i < textures->n_views; ++i) {
 195                 struct pipe_sampler_view *view;
 196                 struct r600_resource_texture *tex;
 197
 198                 view = &textures->views[i]->base;
 199                 if (!view) continue;
 200
 201                 tex = (struct r600_resource_texture *)view->texture;
 202                 if (!tex->is_depth || tex->is_flushing_texture)
 203                         continue;
 204
 205                 r600_blit_uncompress_depth(&rctx->context, tex, NULL,
 206                                            view->u.tex.first_level,
 207                                            view->u.tex.last_level,
 208                                            0,
 209                                            u_max_layer(&tex->resource.b.b, view->u.tex.first_level));
 210         }
 211 }
 212
 213 void r600_flush_all_depth_textures(struct r600_context *rctx)
 214 {
 215         unsigned i;
 216
 217         r600_flush_depth_textures(rctx, &rctx->ps_samplers);
 218         r600_flush_depth_textures(rctx, &rctx->vs_samplers);
 219
 220         /* also check CB here */
 221         for (i = 0; i < rctx->framebuffer.nr_cbufs; i++) {
 222                 struct r600_resource_texture *tex;
 223                 struct pipe_surface *surf = rctx->framebuffer.cbufs[i];
 224                 tex = (struct r600_resource_texture *)surf->texture;
 225
 226                 if (!tex->is_depth || tex->is_flushing_texture)
 227                         continue;
 228
 229                 r600_blit_uncompress_depth(&rctx->context, tex, NULL,
 230                                            surf->u.tex.level,
 231                                            surf->u.tex.level,
 232                                            surf->u.tex.first_layer,
 233                                            surf->u.tex.last_layer);
 234         }
 235 }
 236
 237 static void r600_clear(struct pipe_context *ctx, unsigned buffers,
 238                        const union pipe_color_union *color,
 239                        double depth, unsigned stencil)
 240 {
 241         struct r600_context *rctx = (struct r600_context *)ctx;
 242         struct pipe_framebuffer_state *fb = &rctx->framebuffer;
 243
 244         r600_blitter_begin(ctx, R600_CLEAR);
 245         util_blitter_clear(rctx->blitter, fb->width, fb->height,
 246                            fb->nr_cbufs, buffers, fb->nr_cbufs ? fb->cbufs[0]->format : PIPE_FORMAT_NONE,
 247                            color, depth, stencil);
 248         r600_blitter_end(ctx);
 249 }
 250
 251 static void r600_clear_render_target(struct pipe_context *ctx,
 252                                      struct pipe_surface *dst,
 253                                      const union pipe_color_union *color,
 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_render_target(rctx->blitter, dst, color,
 261                                          dstx, dsty, width, height);
 262         r600_blitter_end(ctx);
 263 }
 264
 265 static void r600_clear_depth_stencil(struct pipe_context *ctx,
 266                                      struct pipe_surface *dst,
 267                                      unsigned clear_flags,
 268                                      double depth,
 269                                      unsigned stencil,
 270                                      unsigned dstx, unsigned dsty,
 271                                      unsigned width, unsigned height)
 272 {
 273         struct r600_context *rctx = (struct r600_context *)ctx;
 274
 275         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 276         util_blitter_clear_depth_stencil(rctx->blitter, dst, clear_flags, depth, stencil,
 277                                          dstx, dsty, width, height);
 278         r600_blitter_end(ctx);
 279 }
 280
 281 struct texture_orig_info {
 282         unsigned format;
 283         unsigned width0;
 284         unsigned height0;
 285         unsigned npix_x;
 286         unsigned npix_y;
 287         unsigned npix0_x;
 288         unsigned npix0_y;
 289 };
 290
 291 static void r600_compressed_to_blittable(struct pipe_resource *tex,
 292                                    unsigned level,
 293                                    struct texture_orig_info *orig)
 294 {
 295         struct r600_resource_texture *rtex = (struct r600_resource_texture*)tex;
 296         unsigned pixsize = util_format_get_blocksize(rtex->real_format);
 297         int new_format;
 298         int new_height, new_width;
 299
 300         orig->format = tex->format;
 301         orig->width0 = tex->width0;
 302         orig->height0 = tex->height0;
 303         orig->npix0_x = rtex->surface.level[0].npix_x;
 304         orig->npix0_y = rtex->surface.level[0].npix_y;
 305         orig->npix_x = rtex->surface.level[level].npix_x;
 306         orig->npix_y = rtex->surface.level[level].npix_y;
 307
 308         if (pixsize == 8)
 309                 new_format = PIPE_FORMAT_R16G16B16A16_UINT; /* 64-bit block */
 310         else
 311                 new_format = PIPE_FORMAT_R32G32B32A32_UINT; /* 128-bit block */
 312
 313         new_width = util_format_get_nblocksx(tex->format, orig->width0);
 314         new_height = util_format_get_nblocksy(tex->format, orig->height0);
 315
 316         tex->width0 = new_width;
 317         tex->height0 = new_height;
 318         tex->format = new_format;
 319         rtex->surface.level[0].npix_x = util_format_get_nblocksx(orig->format, orig->npix0_x);
 320         rtex->surface.level[0].npix_y = util_format_get_nblocksy(orig->format, orig->npix0_y);
 321         rtex->surface.level[level].npix_x = util_format_get_nblocksx(orig->format, orig->npix_x);
 322         rtex->surface.level[level].npix_y = util_format_get_nblocksy(orig->format, orig->npix_y);
 323 }
 324
 325 static void r600_reset_blittable_to_compressed(struct pipe_resource *tex,
 326                                                unsigned level,
 327                                                struct texture_orig_info *orig)
 328 {
 329         struct r600_resource_texture *rtex = (struct r600_resource_texture*)tex;
 330
 331         tex->format = orig->format;
 332         tex->width0 = orig->width0;
 333         tex->height0 = orig->height0;
 334         rtex->surface.level[0].npix_x = orig->npix0_x;
 335         rtex->surface.level[0].npix_y = orig->npix0_y;
 336         rtex->surface.level[level].npix_x = orig->npix_x;
 337         rtex->surface.level[level].npix_y = orig->npix_y;
 338 }
 339
 340 static void r600_resource_copy_region(struct pipe_context *ctx,
 341                                       struct pipe_resource *dst,
 342                                       unsigned dst_level,
 343                                       unsigned dstx, unsigned dsty, unsigned dstz,
 344                                       struct pipe_resource *src,
 345                                       unsigned src_level,
 346                                       const struct pipe_box *src_box)
 347 {
 348         struct r600_context *rctx = (struct r600_context *)ctx;
 349         struct r600_resource_texture *rsrc = (struct r600_resource_texture*)src;
 350         struct texture_orig_info orig_info[2];
 351         struct pipe_box sbox;
 352         const struct pipe_box *psbox;
 353         boolean restore_orig[2];
 354
 355         memset(orig_info, 0, sizeof(orig_info));
 356
 357         /* Fallback for buffers. */
 358         if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
 359                 util_resource_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,
 360                                           src, src_level, src_box);
 361                 return;
 362         }
 363
 364         if (rsrc->is_depth && !rsrc->is_flushing_texture)
 365                 r600_texture_depth_flush(ctx, src, NULL,
 366                                          src_level, src_level,
 367                                          src_box->z, src_box->z + src_box->depth - 1);
 368
 369         restore_orig[0] = restore_orig[1] = FALSE;
 370
 371         if (util_format_is_compressed(src->format)) {
 372                 r600_compressed_to_blittable(src, src_level, &orig_info[0]);
 373                 restore_orig[0] = TRUE;
 374                 sbox.x = util_format_get_nblocksx(orig_info[0].format, src_box->x);
 375                 sbox.y = util_format_get_nblocksy(orig_info[0].format, src_box->y);
 376                 sbox.z = src_box->z;
 377                 sbox.width = util_format_get_nblocksx(orig_info[0].format, src_box->width);
 378                 sbox.height = util_format_get_nblocksy(orig_info[0].format, src_box->height);
 379                 sbox.depth = src_box->depth;
 380                 psbox=&sbox;
 381         } else
 382                 psbox=src_box;
 383
 384         if (util_format_is_compressed(dst->format)) {
 385                 r600_compressed_to_blittable(dst, dst_level, &orig_info[1]);
 386                 restore_orig[1] = TRUE;
 387                 /* translate the dst box as well */
 388                 dstx = util_format_get_nblocksx(orig_info[1].format, dstx);
 389                 dsty = util_format_get_nblocksy(orig_info[1].format, dsty);
 390         }
 391
 392         r600_blitter_begin(ctx, R600_COPY);
 393         util_blitter_copy_texture(rctx->blitter, dst, dst_level, dstx, dsty, dstz,
 394                                   src, src_level, psbox, TRUE);
 395         r600_blitter_end(ctx);
 396
 397         if (restore_orig[0])
 398                 r600_reset_blittable_to_compressed(src, src_level, &orig_info[0]);
 399
 400         if (restore_orig[1])
 401                 r600_reset_blittable_to_compressed(dst, dst_level, &orig_info[1]);
 402 }
 403
 404 void r600_init_blit_functions(struct r600_context *rctx)
 405 {
 406         rctx->context.clear = r600_clear;
 407         rctx->context.clear_render_target = r600_clear_render_target;
 408         rctx->context.clear_depth_stencil = r600_clear_depth_stencil;
 409         rctx->context.resource_copy_region = r600_resource_copy_region;
 410 }