src/gallium/drivers/llvmpipe/lp_surface.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "util/u_rect.h"
  29 #include "util/u_surface.h"
  30 #include "lp_context.h"
  31 #include "lp_flush.h"
  32 #include "lp_limits.h"
  33 #include "lp_surface.h"
  34 #include "lp_texture.h"
  35 #include "lp_query.h"
  36 #include "lp_rast.h"
  37
  38 static void
  39 lp_resource_copy_ms(struct pipe_context *pipe,
  40                     struct pipe_resource *dst, unsigned dst_level,
  41                     unsigned dstx, unsigned dsty, unsigned dstz,
  42                     struct pipe_resource *src, unsigned src_level,
  43                     const struct pipe_box *src_box)
  44 {
  45    struct pipe_box dst_box = *src_box;
  46    enum pipe_format src_format;
  47    dst_box.x = dstx;
  48    dst_box.y = dsty;
  49    dst_box.z = dstz;
  50
  51    src_format = src->format;
  52
  53    for (unsigned i = 0; i < src->nr_samples; i++) {
  54       struct pipe_transfer *src_trans, *dst_trans;
  55       const uint8_t *src_map = llvmpipe_transfer_map_ms(pipe,
  56                                                         src, 0, PIPE_TRANSFER_READ, i,
  57                                                         src_box,
  58                                                         &src_trans);
  59       if (!src_map)
  60          return;
  61
  62       uint8_t *dst_map = llvmpipe_transfer_map_ms(pipe,
  63                                                   dst, 0, PIPE_TRANSFER_WRITE, i,
  64                                                   &dst_box,
  65                                                   &dst_trans);
  66       if (!dst_map) {
  67          pipe->transfer_unmap(pipe, src_trans);
  68          return;
  69       }
  70
  71       util_copy_box(dst_map,
  72                     src_format,
  73                     dst_trans->stride, dst_trans->layer_stride,
  74                     0, 0, 0,
  75                     src_box->width, src_box->height, src_box->depth,
  76                     src_map,
  77                     src_trans->stride, src_trans->layer_stride,
  78                     0, 0, 0);
  79       pipe->transfer_unmap(pipe, dst_trans);
  80       pipe->transfer_unmap(pipe, src_trans);
  81    }
  82 }
  83 static void
  84 lp_resource_copy(struct pipe_context *pipe,
  85                  struct pipe_resource *dst, unsigned dst_level,
  86                  unsigned dstx, unsigned dsty, unsigned dstz,
  87                  struct pipe_resource *src, unsigned src_level,
  88                  const struct pipe_box *src_box)
  89 {
  90    llvmpipe_flush_resource(pipe,
  91                            dst, dst_level,
  92                            FALSE, /* read_only */
  93                            TRUE, /* cpu_access */
  94                            FALSE, /* do_not_block */
  95                            "blit dest");
  96
  97    llvmpipe_flush_resource(pipe,
  98                            src, src_level,
  99                            TRUE, /* read_only */
 100                            TRUE, /* cpu_access */
 101                            FALSE, /* do_not_block */
 102                            "blit src");
 103
 104    if (dst->nr_samples > 1 &&
 105        dst->nr_samples == src->nr_samples) {
 106       lp_resource_copy_ms(pipe, dst, dst_level, dstx, dsty, dstz,
 107                           src, src_level, src_box);
 108       return;
 109    }
 110    util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz,
 111                              src, src_level, src_box);
 112 }
 113
 114
 115 static void lp_blit(struct pipe_context *pipe,
 116                     const struct pipe_blit_info *blit_info)
 117 {
 118    struct llvmpipe_context *lp = llvmpipe_context(pipe);
 119    struct pipe_blit_info info = *blit_info;
 120
 121    if (blit_info->render_condition_enable && !llvmpipe_check_render_cond(lp))
 122       return;
 123
 124    if (util_try_blit_via_copy_region(pipe, &info)) {
 125       return; /* done */
 126    }
 127
 128    if (!util_blitter_is_blit_supported(lp->blitter, &info)) {
 129       debug_printf("llvmpipe: blit unsupported %s -> %s\n",
 130                    util_format_short_name(info.src.resource->format),
 131                    util_format_short_name(info.dst.resource->format));
 132       return;
 133    }
 134
 135    /* for 32-bit unorm depth, avoid the conversions to float and back,
 136       which can introduce accuracy errors. */
 137    if (blit_info->src.format == PIPE_FORMAT_Z32_UNORM &&
 138        blit_info->dst.format == PIPE_FORMAT_Z32_UNORM && info.filter == PIPE_TEX_FILTER_NEAREST) {
 139       info.src.format = PIPE_FORMAT_R32_UINT;
 140       info.dst.format = PIPE_FORMAT_R32_UINT;
 141       info.mask = PIPE_MASK_R;
 142    }
 143
 144    /* XXX turn off occlusion and streamout queries */
 145
 146    util_blitter_save_vertex_buffer_slot(lp->blitter, lp->vertex_buffer);
 147    util_blitter_save_vertex_elements(lp->blitter, (void*)lp->velems);
 148    util_blitter_save_vertex_shader(lp->blitter, (void*)lp->vs);
 149    util_blitter_save_geometry_shader(lp->blitter, (void*)lp->gs);
 150    util_blitter_save_so_targets(lp->blitter, lp->num_so_targets,
 151                                 (struct pipe_stream_output_target**)lp->so_targets);
 152    util_blitter_save_rasterizer(lp->blitter, (void*)lp->rasterizer);
 153    util_blitter_save_viewport(lp->blitter, &lp->viewports[0]);
 154    util_blitter_save_scissor(lp->blitter, &lp->scissors[0]);
 155    util_blitter_save_fragment_shader(lp->blitter, lp->fs);
 156    util_blitter_save_blend(lp->blitter, (void*)lp->blend);
 157    util_blitter_save_tessctrl_shader(lp->blitter, (void*)lp->tcs);
 158    util_blitter_save_tesseval_shader(lp->blitter, (void*)lp->tes);
 159    util_blitter_save_depth_stencil_alpha(lp->blitter, (void*)lp->depth_stencil);
 160    util_blitter_save_stencil_ref(lp->blitter, &lp->stencil_ref);
 161    util_blitter_save_sample_mask(lp->blitter, lp->sample_mask);
 162    util_blitter_save_framebuffer(lp->blitter, &lp->framebuffer);
 163    util_blitter_save_fragment_sampler_states(lp->blitter,
 164                      lp->num_samplers[PIPE_SHADER_FRAGMENT],
 165                      (void**)lp->samplers[PIPE_SHADER_FRAGMENT]);
 166    util_blitter_save_fragment_sampler_views(lp->blitter,
 167                      lp->num_sampler_views[PIPE_SHADER_FRAGMENT],
 168                      lp->sampler_views[PIPE_SHADER_FRAGMENT]);
 169    util_blitter_save_render_condition(lp->blitter, lp->render_cond_query,
 170                                       lp->render_cond_cond, lp->render_cond_mode);
 171    util_blitter_blit(lp->blitter, &info);
 172 }
 173
 174
 175 static void
 176 lp_flush_resource(struct pipe_context *ctx, struct pipe_resource *resource)
 177 {
 178 }
 179
 180
 181 static struct pipe_surface *
 182 llvmpipe_create_surface(struct pipe_context *pipe,
 183                         struct pipe_resource *pt,
 184                         const struct pipe_surface *surf_tmpl)
 185 {
 186    struct pipe_surface *ps;
 187
 188    if (!(pt->bind & (PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_RENDER_TARGET))) {
 189       debug_printf("Illegal surface creation without bind flag\n");
 190       if (util_format_is_depth_or_stencil(surf_tmpl->format)) {
 191          pt->bind |= PIPE_BIND_DEPTH_STENCIL;
 192       }
 193       else {
 194          pt->bind |= PIPE_BIND_RENDER_TARGET;
 195       }
 196    }
 197
 198    ps = CALLOC_STRUCT(pipe_surface);
 199    if (ps) {
 200       pipe_reference_init(&ps->reference, 1);
 201       pipe_resource_reference(&ps->texture, pt);
 202       ps->context = pipe;
 203       ps->format = surf_tmpl->format;
 204       if (llvmpipe_resource_is_texture(pt)) {
 205          assert(surf_tmpl->u.tex.level <= pt->last_level);
 206          assert(surf_tmpl->u.tex.first_layer <= surf_tmpl->u.tex.last_layer);
 207          ps->width = u_minify(pt->width0, surf_tmpl->u.tex.level);
 208          ps->height = u_minify(pt->height0, surf_tmpl->u.tex.level);
 209          ps->u.tex.level = surf_tmpl->u.tex.level;
 210          ps->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 211          ps->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 212       }
 213       else {
 214          /* setting width as number of elements should get us correct renderbuffer width */
 215          ps->width = surf_tmpl->u.buf.last_element - surf_tmpl->u.buf.first_element + 1;
 216          ps->height = pt->height0;
 217          ps->u.buf.first_element = surf_tmpl->u.buf.first_element;
 218          ps->u.buf.last_element = surf_tmpl->u.buf.last_element;
 219          assert(ps->u.buf.first_element <= ps->u.buf.last_element);
 220          assert(util_format_get_blocksize(surf_tmpl->format) *
 221                 (ps->u.buf.last_element + 1) <= pt->width0);
 222       }
 223    }
 224    return ps;
 225 }
 226
 227
 228 static void
 229 llvmpipe_surface_destroy(struct pipe_context *pipe,
 230                          struct pipe_surface *surf)
 231 {
 232    /* Effectively do the texture_update work here - if texture images
 233     * needed post-processing to put them into hardware layout, this is
 234     * where it would happen.  For llvmpipe, nothing to do.
 235     */
 236    assert(surf->texture);
 237    pipe_resource_reference(&surf->texture, NULL);
 238    FREE(surf);
 239 }
 240
 241
 242
 243 static void
 244 llvmpipe_get_sample_position(struct pipe_context *pipe,
 245                              unsigned sample_count,
 246                              unsigned sample_index,
 247                              float *out_value)
 248 {
 249    switch (sample_count) {
 250    case 4:
 251       out_value[0] = lp_sample_pos_4x[sample_index][0];
 252       out_value[1] = lp_sample_pos_4x[sample_index][1];
 253       break;
 254    default:
 255       break;
 256    }
 257 }
 258
 259 static void
 260 lp_clear_color_texture_helper(struct pipe_transfer *dst_trans,
 261                                 ubyte *dst_map,
 262                                 enum pipe_format format,
 263                                 const union pipe_color_union *color,
 264                                 unsigned width, unsigned height, unsigned depth)
 265 {
 266    union util_color uc;
 267
 268    assert(dst_trans->stride > 0);
 269
 270    util_pack_color_union(format, &uc, color);
 271
 272    util_fill_box(dst_map, format,
 273                  dst_trans->stride, dst_trans->layer_stride,
 274                  0, 0, 0, width, height, depth, &uc);
 275 }
 276
 277 static void
 278 lp_clear_color_texture_msaa(struct pipe_context *pipe,
 279                             struct pipe_resource *texture,
 280                             enum pipe_format format,
 281                             const union pipe_color_union *color,
 282                             unsigned sample,
 283                             const struct pipe_box *box)
 284 {
 285    struct pipe_transfer *dst_trans;
 286    ubyte *dst_map;
 287
 288    dst_map = llvmpipe_transfer_map_ms(pipe, texture, 0, PIPE_TRANSFER_WRITE,
 289                                       sample, box, &dst_trans);
 290    if (!dst_map)
 291       return;
 292
 293    if (dst_trans->stride > 0) {
 294       lp_clear_color_texture_helper(dst_trans, dst_map, format, color,
 295                                     box->width, box->height, box->depth);
 296    }
 297    pipe->transfer_unmap(pipe, dst_trans);
 298 }
 299
 300 static void
 301 llvmpipe_clear_render_target(struct pipe_context *pipe,
 302                              struct pipe_surface *dst,
 303                              const union pipe_color_union *color,
 304                              unsigned dstx, unsigned dsty,
 305                              unsigned width, unsigned height,
 306                              bool render_condition_enabled)
 307 {
 308    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
 309
 310    if (render_condition_enabled && !llvmpipe_check_render_cond(llvmpipe))
 311       return;
 312
 313    if (dst->texture->nr_samples > 1) {
 314       struct pipe_box box;
 315       u_box_2d(dstx, dsty, width, height, &box);
 316       for (unsigned s = 0; s < util_res_sample_count(dst->texture); s++) {
 317          lp_clear_color_texture_msaa(pipe, dst->texture, dst->format,
 318                                      color, s, &box);
 319       }
 320    } else
 321       util_clear_render_target(pipe, dst, color,
 322                                dstx, dsty, width, height);
 323 }
 324
 325
 326 static void
 327 lp_clear_depth_stencil_texture_msaa(struct pipe_context *pipe,
 328                                     struct pipe_resource *texture,
 329                                     enum pipe_format format,
 330                                     unsigned clear_flags,
 331                                     uint64_t zstencil, unsigned sample,
 332                                     const struct pipe_box *box)
 333 {
 334    struct pipe_transfer *dst_trans;
 335    ubyte *dst_map;
 336    boolean need_rmw = FALSE;
 337
 338    if ((clear_flags & PIPE_CLEAR_DEPTHSTENCIL) &&
 339        ((clear_flags & PIPE_CLEAR_DEPTHSTENCIL) != PIPE_CLEAR_DEPTHSTENCIL) &&
 340        util_format_is_depth_and_stencil(format))
 341       need_rmw = TRUE;
 342
 343    dst_map = llvmpipe_transfer_map_ms(pipe,
 344                                       texture,
 345                                       0,
 346                                       (need_rmw ? PIPE_TRANSFER_READ_WRITE :
 347                                        PIPE_TRANSFER_WRITE),
 348                                       sample, box, &dst_trans);
 349    assert(dst_map);
 350    if (!dst_map)
 351       return;
 352
 353    assert(dst_trans->stride > 0);
 354
 355    util_fill_zs_box(dst_map, format, need_rmw, clear_flags,
 356                     dst_trans->stride, dst_trans->layer_stride,
 357                     box->width, box->height, box->depth, zstencil);
 358
 359    pipe->transfer_unmap(pipe, dst_trans);
 360 }
 361
 362 static void
 363 llvmpipe_clear_depth_stencil(struct pipe_context *pipe,
 364                              struct pipe_surface *dst,
 365                              unsigned clear_flags,
 366                              double depth,
 367                              unsigned stencil,
 368                              unsigned dstx, unsigned dsty,
 369                              unsigned width, unsigned height,
 370                              bool render_condition_enabled)
 371 {
 372    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
 373
 374    if (render_condition_enabled && !llvmpipe_check_render_cond(llvmpipe))
 375       return;
 376
 377    if (dst->texture->nr_samples > 1) {
 378       uint64_t zstencil = util_pack64_z_stencil(dst->format, depth, stencil);
 379       struct pipe_box box;
 380       u_box_2d(dstx, dsty, width, height, &box);
 381       for (unsigned s = 0; s < util_res_sample_count(dst->texture); s++)
 382          lp_clear_depth_stencil_texture_msaa(pipe, dst->texture,
 383                                              dst->format, clear_flags,
 384                                              zstencil, s, &box);
 385    } else
 386       util_clear_depth_stencil(pipe, dst, clear_flags,
 387                                depth, stencil,
 388                                dstx, dsty, width, height);
 389 }
 390
 391 static void
 392 llvmpipe_clear_texture(struct pipe_context *pipe,
 393                        struct pipe_resource *tex,
 394                        unsigned level,
 395                        const struct pipe_box *box,
 396                        const void *data)
 397 {
 398    const struct util_format_description *desc =
 399           util_format_description(tex->format);
 400    if (tex->nr_samples <= 1) {
 401       util_clear_texture(pipe, tex, level, box, data);
 402       return;
 403    }
 404    union pipe_color_union color;
 405
 406    if (util_format_is_depth_or_stencil(tex->format)) {
 407       unsigned clear = 0;
 408       float depth = 0.0f;
 409       uint8_t stencil = 0;
 410       uint64_t zstencil;
 411
 412       if (util_format_has_depth(desc)) {
 413          clear |= PIPE_CLEAR_DEPTH;
 414          util_format_unpack_z_float(tex->format, &depth, data, 1);
 415       }
 416
 417       if (util_format_has_stencil(desc)) {
 418          clear |= PIPE_CLEAR_STENCIL;
 419          util_format_unpack_s_8uint(tex->format, &stencil, data, 1);
 420       }
 421
 422       zstencil = util_pack64_z_stencil(tex->format, depth, stencil);
 423
 424       for (unsigned s = 0; s < util_res_sample_count(tex); s++)
 425          lp_clear_depth_stencil_texture_msaa(pipe, tex, tex->format, clear, zstencil,
 426                                              s, box);
 427    } else {
 428       util_format_unpack_rgba(tex->format, color.ui, data, 1);
 429
 430       for (unsigned s = 0; s < util_res_sample_count(tex); s++) {
 431          lp_clear_color_texture_msaa(pipe, tex, tex->format, &color, s,
 432                                      box);
 433       }
 434    }
 435 }
 436
 437 void
 438 llvmpipe_init_surface_functions(struct llvmpipe_context *lp)
 439 {
 440    lp->pipe.clear_render_target = llvmpipe_clear_render_target;
 441    lp->pipe.clear_depth_stencil = llvmpipe_clear_depth_stencil;
 442    lp->pipe.create_surface = llvmpipe_create_surface;
 443    lp->pipe.surface_destroy = llvmpipe_surface_destroy;
 444    /* These are not actually functions dealing with surfaces */
 445    lp->pipe.clear_texture = llvmpipe_clear_texture;
 446    lp->pipe.resource_copy_region = lp_resource_copy;
 447    lp->pipe.blit = lp_blit;
 448    lp->pipe.flush_resource = lp_flush_resource;
 449    lp->pipe.get_sample_position = llvmpipe_get_sample_position;
 450 }