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         }
  73
  74         if (op & R600_SAVE_FRAMEBUFFER)
  75                 util_blitter_save_framebuffer(rctx->blitter, &rctx->framebuffer);
  76
  77         if (op & R600_SAVE_TEXTURES) {
  78                 util_blitter_save_fragment_sampler_states(
  79                         rctx->blitter, rctx->ps_samplers.n_samplers,
  80                         (void**)rctx->ps_samplers.samplers);
  81
  82                 util_blitter_save_fragment_sampler_views(
  83                         rctx->blitter, util_last_bit(rctx->ps_samplers.views.enabled_mask),
  84                         (struct pipe_sampler_view**)rctx->ps_samplers.views.views);
  85         }
  86
  87         if ((op & R600_DISABLE_RENDER_COND) && rctx->current_render_cond) {
  88                 rctx->saved_render_cond = rctx->current_render_cond;
  89                 rctx->saved_render_cond_mode = rctx->current_render_cond_mode;
  90                 rctx->context.render_condition(&rctx->context, NULL, 0);
  91         }
  92
  93 }
  94
  95 static void r600_blitter_end(struct pipe_context *ctx)
  96 {
  97         struct r600_context *rctx = (struct r600_context *)ctx;
  98         if (rctx->saved_render_cond) {
  99                 rctx->context.render_condition(&rctx->context,
 100                                                rctx->saved_render_cond,
 101                                                rctx->saved_render_cond_mode);
 102                 rctx->saved_render_cond = NULL;
 103         }
 104         r600_resume_nontimer_queries(rctx);
 105 }
 106
 107 static unsigned u_max_layer(struct pipe_resource *r, unsigned level)
 108 {
 109         switch (r->target) {
 110         case PIPE_TEXTURE_CUBE:
 111                 return 6 - 1;
 112         case PIPE_TEXTURE_3D:
 113                 return u_minify(r->depth0, level) - 1;
 114         case PIPE_TEXTURE_1D_ARRAY:
 115         case PIPE_TEXTURE_2D_ARRAY:
 116                 return r->array_size - 1;
 117         default:
 118                 return 0;
 119         }
 120 }
 121
 122 void r600_blit_uncompress_depth(struct pipe_context *ctx,
 123                 struct r600_resource_texture *texture,
 124                 struct r600_resource_texture *staging,
 125                 unsigned first_level, unsigned last_level,
 126                 unsigned first_layer, unsigned last_layer)
 127 {
 128         struct r600_context *rctx = (struct r600_context *)ctx;
 129         unsigned layer, level, checked_last_layer, max_layer;
 130         float depth = 1.0f;
 131         struct r600_resource_texture *flushed_depth_texture = staging ?
 132                         staging : texture->flushed_depth_texture;
 133
 134         if (!staging && !texture->dirty_db_mask)
 135                 return;
 136
 137         if (rctx->family == CHIP_RV610 || rctx->family == CHIP_RV630 ||
 138             rctx->family == CHIP_RV620 || rctx->family == CHIP_RV635)
 139                 depth = 0.0f;
 140
 141         if (!rctx->db_misc_state.flush_depthstencil_through_cb) {
 142                 /* Enable decompression in DB_RENDER_CONTROL */
 143                 rctx->db_misc_state.flush_depthstencil_through_cb = true;
 144                 r600_atom_dirty(rctx, &rctx->db_misc_state.atom);
 145         }
 146
 147         for (level = first_level; level <= last_level; level++) {
 148                 if (!staging && !(texture->dirty_db_mask & (1 << level)))
 149                         continue;
 150
 151                 /* The smaller the mipmap level, the less layers there are
 152                  * as far as 3D textures are concerned. */
 153                 max_layer = u_max_layer(&texture->resource.b.b, level);
 154                 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
 155
 156                 for (layer = first_layer; layer <= checked_last_layer; layer++) {
 157                         struct pipe_surface *zsurf, *cbsurf, surf_tmpl;
 158
 159                         surf_tmpl.format = texture->real_format;
 160                         surf_tmpl.u.tex.level = level;
 161                         surf_tmpl.u.tex.first_layer = layer;
 162                         surf_tmpl.u.tex.last_layer = layer;
 163                         surf_tmpl.usage = PIPE_BIND_DEPTH_STENCIL;
 164
 165                         zsurf = ctx->create_surface(ctx, &texture->resource.b.b, &surf_tmpl);
 166
 167                         surf_tmpl.format = flushed_depth_texture->real_format;
 168                         surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
 169                         cbsurf = ctx->create_surface(ctx,
 170                                         (struct pipe_resource*)flushed_depth_texture, &surf_tmpl);
 171
 172                         r600_blitter_begin(ctx, R600_DECOMPRESS);
 173                         util_blitter_custom_depth_stencil(rctx->blitter, zsurf, cbsurf, rctx->custom_dsa_flush, depth);
 174                         r600_blitter_end(ctx);
 175
 176                         pipe_surface_reference(&zsurf, NULL);
 177                         pipe_surface_reference(&cbsurf, NULL);
 178                 }
 179
 180                 /* The texture will always be dirty if some layers aren't flushed.
 181                  * I don't think this case can occur though. */
 182                 if (!staging && first_layer == 0 && last_layer == max_layer) {
 183                         texture->dirty_db_mask &= ~(1 << level);
 184                 }
 185         }
 186
 187         /* reenable compression in DB_RENDER_CONTROL */
 188         rctx->db_misc_state.flush_depthstencil_through_cb = false;
 189         r600_atom_dirty(rctx, &rctx->db_misc_state.atom);
 190 }
 191
 192 void r600_flush_depth_textures(struct r600_context *rctx,
 193                                struct r600_samplerview_state *textures)
 194 {
 195         unsigned i;
 196         unsigned depth_texture_mask = textures->depth_texture_mask;
 197
 198         while (depth_texture_mask) {
 199                 struct pipe_sampler_view *view;
 200                 struct r600_resource_texture *tex;
 201
 202                 i = u_bit_scan(&depth_texture_mask);
 203
 204                 view = &textures->views[i]->base;
 205                 assert(view);
 206
 207                 tex = (struct r600_resource_texture *)view->texture;
 208                 assert(tex->is_depth && !tex->is_flushing_texture);
 209
 210                 r600_blit_uncompress_depth(&rctx->context, tex, NULL,
 211                                            view->u.tex.first_level,
 212                                            view->u.tex.last_level,
 213                                            0,
 214                                            u_max_layer(&tex->resource.b.b, view->u.tex.first_level));
 215         }
 216 }
 217
 218 static void r600_clear(struct pipe_context *ctx, unsigned buffers,
 219                        const union pipe_color_union *color,
 220                        double depth, unsigned stencil)
 221 {
 222         struct r600_context *rctx = (struct r600_context *)ctx;
 223         struct pipe_framebuffer_state *fb = &rctx->framebuffer;
 224
 225         r600_blitter_begin(ctx, R600_CLEAR);
 226         util_blitter_clear(rctx->blitter, fb->width, fb->height,
 227                            fb->nr_cbufs, buffers, fb->nr_cbufs ? fb->cbufs[0]->format : PIPE_FORMAT_NONE,
 228                            color, depth, stencil);
 229         r600_blitter_end(ctx);
 230 }
 231
 232 static void r600_clear_render_target(struct pipe_context *ctx,
 233                                      struct pipe_surface *dst,
 234                                      const union pipe_color_union *color,
 235                                      unsigned dstx, unsigned dsty,
 236                                      unsigned width, unsigned height)
 237 {
 238         struct r600_context *rctx = (struct r600_context *)ctx;
 239
 240         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 241         util_blitter_clear_render_target(rctx->blitter, dst, color,
 242                                          dstx, dsty, width, height);
 243         r600_blitter_end(ctx);
 244 }
 245
 246 static void r600_clear_depth_stencil(struct pipe_context *ctx,
 247                                      struct pipe_surface *dst,
 248                                      unsigned clear_flags,
 249                                      double depth,
 250                                      unsigned stencil,
 251                                      unsigned dstx, unsigned dsty,
 252                                      unsigned width, unsigned height)
 253 {
 254         struct r600_context *rctx = (struct r600_context *)ctx;
 255
 256         r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
 257         util_blitter_clear_depth_stencil(rctx->blitter, dst, clear_flags, depth, stencil,
 258                                          dstx, dsty, width, height);
 259         r600_blitter_end(ctx);
 260 }
 261
 262 void r600_copy_buffer(struct pipe_context *ctx, struct
 263                       pipe_resource *dst, unsigned dstx,
 264                       struct pipe_resource *src, const struct pipe_box *src_box)
 265 {
 266         struct r600_context *rctx = (struct r600_context*)ctx;
 267
 268         if (rctx->screen->has_streamout &&
 269             /* Require dword alignment. */
 270             dstx % 4 == 0 && src_box->x % 4 == 0 && src_box->width % 4 == 0) {
 271                 r600_blitter_begin(ctx, R600_COPY_BUFFER);
 272                 util_blitter_copy_buffer(rctx->blitter, dst, dstx, src, src_box->x, src_box->width);
 273                 r600_blitter_end(ctx);
 274         } else {
 275                 util_resource_copy_region(ctx, dst, 0, dstx, 0, 0, src, 0, src_box);
 276         }
 277 }
 278
 279 struct texture_orig_info {
 280         unsigned format;
 281         unsigned width0;
 282         unsigned height0;
 283         unsigned npix_x;
 284         unsigned npix_y;
 285         unsigned npix0_x;
 286         unsigned npix0_y;
 287 };
 288
 289 static void r600_compressed_to_blittable(struct pipe_resource *tex,
 290                                    unsigned level,
 291                                    struct texture_orig_info *orig)
 292 {
 293         struct r600_resource_texture *rtex = (struct r600_resource_texture*)tex;
 294         unsigned pixsize = util_format_get_blocksize(rtex->real_format);
 295         int new_format;
 296         int new_height, new_width;
 297
 298         orig->format = tex->format;
 299         orig->width0 = tex->width0;
 300         orig->height0 = tex->height0;
 301         orig->npix0_x = rtex->surface.level[0].npix_x;
 302         orig->npix0_y = rtex->surface.level[0].npix_y;
 303         orig->npix_x = rtex->surface.level[level].npix_x;
 304         orig->npix_y = rtex->surface.level[level].npix_y;
 305
 306         if (pixsize == 8)
 307                 new_format = PIPE_FORMAT_R16G16B16A16_UINT; /* 64-bit block */
 308         else
 309                 new_format = PIPE_FORMAT_R32G32B32A32_UINT; /* 128-bit block */
 310
 311         new_width = util_format_get_nblocksx(tex->format, orig->width0);
 312         new_height = util_format_get_nblocksy(tex->format, orig->height0);
 313
 314         tex->width0 = new_width;
 315         tex->height0 = new_height;
 316         tex->format = new_format;
 317         rtex->surface.level[0].npix_x = util_format_get_nblocksx(orig->format, orig->npix0_x);
 318         rtex->surface.level[0].npix_y = util_format_get_nblocksy(orig->format, orig->npix0_y);
 319         rtex->surface.level[level].npix_x = util_format_get_nblocksx(orig->format, orig->npix_x);
 320         rtex->surface.level[level].npix_y = util_format_get_nblocksy(orig->format, orig->npix_y);
 321 }
 322
 323 static void r600_reset_blittable_to_compressed(struct pipe_resource *tex,
 324                                                unsigned level,
 325                                                struct texture_orig_info *orig)
 326 {
 327         struct r600_resource_texture *rtex = (struct r600_resource_texture*)tex;
 328
 329         tex->format = orig->format;
 330         tex->width0 = orig->width0;
 331         tex->height0 = orig->height0;
 332         rtex->surface.level[0].npix_x = orig->npix0_x;
 333         rtex->surface.level[0].npix_y = orig->npix0_y;
 334         rtex->surface.level[level].npix_x = orig->npix_x;
 335         rtex->surface.level[level].npix_y = orig->npix_y;
 336 }
 337
 338 static void r600_resource_copy_region(struct pipe_context *ctx,
 339                                       struct pipe_resource *dst,
 340                                       unsigned dst_level,
 341                                       unsigned dstx, unsigned dsty, unsigned dstz,
 342                                       struct pipe_resource *src,
 343                                       unsigned src_level,
 344                                       const struct pipe_box *src_box)
 345 {
 346         struct r600_context *rctx = (struct r600_context *)ctx;
 347         struct r600_resource_texture *rsrc = (struct r600_resource_texture*)src;
 348         struct texture_orig_info orig_info[2];
 349         struct pipe_box sbox;
 350         const struct pipe_box *psbox;
 351         boolean restore_orig[2];
 352
 353         memset(orig_info, 0, sizeof(orig_info));
 354
 355         /* Handle buffers first. */
 356         if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
 357                 r600_copy_buffer(ctx, dst, dstx, src, src_box);
 358                 return;
 359         }
 360
 361         /* This must be done before entering u_blitter to avoid recursion. */
 362         if (rsrc->is_depth && !rsrc->is_flushing_texture) {
 363                 if (!r600_init_flushed_depth_texture(ctx, src, NULL))
 364                         return; /* error */
 365
 366                 r600_blit_uncompress_depth(ctx, rsrc, NULL,
 367                                            src_level, src_level,
 368                                            src_box->z, src_box->z + src_box->depth - 1);
 369         }
 370
 371         restore_orig[0] = restore_orig[1] = FALSE;
 372
 373         if (util_format_is_compressed(src->format)) {
 374                 r600_compressed_to_blittable(src, src_level, &orig_info[0]);
 375                 restore_orig[0] = TRUE;
 376                 sbox.x = util_format_get_nblocksx(orig_info[0].format, src_box->x);
 377                 sbox.y = util_format_get_nblocksy(orig_info[0].format, src_box->y);
 378                 sbox.z = src_box->z;
 379                 sbox.width = util_format_get_nblocksx(orig_info[0].format, src_box->width);
 380                 sbox.height = util_format_get_nblocksy(orig_info[0].format, src_box->height);
 381                 sbox.depth = src_box->depth;
 382                 psbox=&sbox;
 383         } else
 384                 psbox=src_box;
 385
 386         if (util_format_is_compressed(dst->format)) {
 387                 r600_compressed_to_blittable(dst, dst_level, &orig_info[1]);
 388                 restore_orig[1] = TRUE;
 389                 /* translate the dst box as well */
 390                 dstx = util_format_get_nblocksx(orig_info[1].format, dstx);
 391                 dsty = util_format_get_nblocksy(orig_info[1].format, dsty);
 392         }
 393
 394         r600_blitter_begin(ctx, R600_COPY_TEXTURE);
 395         util_blitter_copy_texture(rctx->blitter, dst, dst_level, dstx, dsty, dstz,
 396                                   src, src_level, psbox, TRUE);
 397         r600_blitter_end(ctx);
 398
 399         if (restore_orig[0])
 400                 r600_reset_blittable_to_compressed(src, src_level, &orig_info[0]);
 401
 402         if (restore_orig[1])
 403                 r600_reset_blittable_to_compressed(dst, dst_level, &orig_info[1]);
 404 }
 405
 406 void r600_init_blit_functions(struct r600_context *rctx)
 407 {
 408         rctx->context.clear = r600_clear;
 409         rctx->context.clear_render_target = r600_clear_render_target;
 410         rctx->context.clear_depth_stencil = r600_clear_depth_stencil;
 411         rctx->context.resource_copy_region = r600_resource_copy_region;
 412 }