1 /* 2 * Copyright 2009 Marek Olk <maraeo (at) gmail.com> 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 "r300_context.h" 24 #include "r300_emit.h" 25 #include "r300_texture.h" 26 #include "r300_reg.h" 27 28 #include "util/u_format.h" 29 #include "util/u_half.h" 30 #include "util/u_pack_color.h" 31 #include "util/u_surface.h" 32 33 enum r300_blitter_op /* bitmask */ 34 { 35 R300_STOP_QUERY = 1, 36 R300_SAVE_TEXTURES = 2, 37 R300_SAVE_FRAMEBUFFER = 4, 38 R300_IGNORE_RENDER_COND = 8, 39 40 R300_CLEAR = R300_STOP_QUERY, 41 42 R300_CLEAR_SURFACE = R300_STOP_QUERY | R300_SAVE_FRAMEBUFFER, 43 44 R300_COPY = R300_STOP_QUERY | R300_SAVE_FRAMEBUFFER | 45 R300_SAVE_TEXTURES | R300_IGNORE_RENDER_COND, 46 47 R300_BLIT = R300_STOP_QUERY | R300_SAVE_FRAMEBUFFER | 48 R300_SAVE_TEXTURES, 49 50 R300_DECOMPRESS = R300_STOP_QUERY | R300_IGNORE_RENDER_COND, 51 }; 52 53 static void r300_blitter_begin(struct r300_context* r300, enum r300_blitter_op op) 54 { 55 if ((op & R300_STOP_QUERY) && r300->query_current) { 56 r300->blitter_saved_query = r300->query_current; 57 r300_stop_query(r300); 58 } 59 60 /* Yeah we have to save all those states to ensure the blitter operation 61 * is really transparent. The states will be restored by the blitter once 62 * copying is done. */ 63 util_blitter_save_blend(r300->blitter, r300->blend_state.state); 64 util_blitter_save_depth_stencil_alpha(r300->blitter, r300->dsa_state.state); 65 util_blitter_save_stencil_ref(r300->blitter, &(r300->stencil_ref)); 66 util_blitter_save_rasterizer(r300->blitter, r300->rs_state.state); 67 util_blitter_save_fragment_shader(r300->blitter, r300->fs.state); 68 util_blitter_save_vertex_shader(r300->blitter, r300->vs_state.state); 69 util_blitter_save_viewport(r300->blitter, &r300->viewport); 70 util_blitter_save_scissor(r300->blitter, r300->scissor_state.state); 71 util_blitter_save_sample_mask(r300->blitter, *(unsigned*)r300->sample_mask.state); 72 util_blitter_save_vertex_buffer_slot(r300->blitter, r300->vertex_buffer); 73 util_blitter_save_vertex_elements(r300->blitter, r300->velems); 74 75 if (op & R300_SAVE_FRAMEBUFFER) { 76 util_blitter_save_framebuffer(r300->blitter, r300->fb_state.state); 77 } 78 79 if (op & R300_SAVE_TEXTURES) { 80 struct r300_textures_state* state = 81 (struct r300_textures_state*)r300->textures_state.state; 82 83 util_blitter_save_fragment_sampler_states( 84 r300->blitter, state->sampler_state_count, 85 (void**)state->sampler_states); 86 87 util_blitter_save_fragment_sampler_views( 88 r300->blitter, state->sampler_view_count, 89 (struct pipe_sampler_view**)state->sampler_views); 90 } 91 92 if (op & R300_IGNORE_RENDER_COND) { 93 /* Save the flag. */ 94 r300->blitter_saved_skip_rendering = r300->skip_rendering+1; 95 r300->skip_rendering = FALSE; 96 } else { 97 r300->blitter_saved_skip_rendering = 0; 98 } 99 } 100 101 static void r300_blitter_end(struct r300_context *r300) 102 { 103 if (r300->blitter_saved_query) { 104 r300_resume_query(r300, r300->blitter_saved_query); 105 r300->blitter_saved_query = NULL; 106 } 107 108 if (r300->blitter_saved_skip_rendering) { 109 /* Restore the flag. */ 110 r300->skip_rendering = r300->blitter_saved_skip_rendering-1; 111 } 112 } 113 114 static uint32_t r300_depth_clear_cb_value(enum pipe_format format, 115 const float* rgba) 116 { 117 union util_color uc; 118 util_pack_color(rgba, format, &uc); 119 120 if (util_format_get_blocksizebits(format) == 32) 121 return uc.ui[0]; 122 else 123 return uc.us | (uc.us << 16); 124 } 125 126 static boolean r300_cbzb_clear_allowed(struct r300_context *r300, 127 unsigned clear_buffers) 128 { 129 struct pipe_framebuffer_state *fb = 130 (struct pipe_framebuffer_state*)r300->fb_state.state; 131 132 /* Only color clear allowed, and only one colorbuffer. */ 133 if ((clear_buffers & ~PIPE_CLEAR_COLOR) != 0 || fb->nr_cbufs != 1 || !fb->cbufs[0]) 134 return FALSE; 135 136 return r300_surface(fb->cbufs[0])->cbzb_allowed; 137 } 138 139 static boolean r300_fast_zclear_allowed(struct r300_context *r300, 140 unsigned clear_buffers) 141 { 142 struct pipe_framebuffer_state *fb = 143 (struct pipe_framebuffer_state*)r300->fb_state.state; 144 145 return r300_resource(fb->zsbuf->texture)->tex.zmask_dwords[fb->zsbuf->u.tex.level] != 0; 146 } 147 148 static boolean r300_hiz_clear_allowed(struct r300_context *r300) 149 { 150 struct pipe_framebuffer_state *fb = 151 (struct pipe_framebuffer_state*)r300->fb_state.state; 152 153 return r300_resource(fb->zsbuf->texture)->tex.hiz_dwords[fb->zsbuf->u.tex.level] != 0; 154 } 155 156 static uint32_t r300_depth_clear_value(enum pipe_format format, 157 double depth, unsigned stencil) 158 { 159 switch (format) { 160 case PIPE_FORMAT_Z16_UNORM: 161 case PIPE_FORMAT_X8Z24_UNORM: 162 return util_pack_z(format, depth); 163 164 case PIPE_FORMAT_S8_UINT_Z24_UNORM: 165 return util_pack_z_stencil(format, depth, stencil); 166 167 default: 168 assert(0); 169 return 0; 170 } 171 } 172 173 static uint32_t r300_hiz_clear_value(double depth) 174 { 175 uint32_t r = (uint32_t)(CLAMP(depth, 0, 1) * 255.5); 176 assert(r <= 255); 177 return r | (r << 8) | (r << 16) | (r << 24); 178 } 179 180 static void r300_set_clear_color(struct r300_context *r300, 181 const union pipe_color_union *color) 182 { 183 struct pipe_framebuffer_state *fb = 184 (struct pipe_framebuffer_state*)r300->fb_state.state; 185 union util_color uc; 186 187 memset(&uc, 0, sizeof(uc)); 188 util_pack_color(color->f, fb->cbufs[0]->format, &uc); 189 190 if (fb->cbufs[0]->format == PIPE_FORMAT_R16G16B16A16_FLOAT || 191 fb->cbufs[0]->format == PIPE_FORMAT_R16G16B16X16_FLOAT) { 192 /* (0,1,2,3) maps to (B,G,R,A) */ 193 r300->color_clear_value_gb = uc.h[0] | ((uint32_t)uc.h[1] << 16); 194 r300->color_clear_value_ar = uc.h[2] | ((uint32_t)uc.h[3] << 16); 195 } else { 196 r300->color_clear_value = uc.ui[0]; 197 } 198 } 199 200 DEBUG_GET_ONCE_BOOL_OPTION(hyperz, "RADEON_HYPERZ", FALSE) 201 202 /* Clear currently bound buffers. */ 203 static void r300_clear(struct pipe_context* pipe, 204 unsigned buffers, 205 const union pipe_color_union *color, 206 double depth, 207 unsigned stencil) 208 { 209 /* My notes about Zbuffer compression: 210 * 211 * 1) The zbuffer must be micro-tiled and whole microtiles must be 212 * written if compression is enabled. If microtiling is disabled, 213 * it locks up. 214 * 215 * 2) There is ZMASK RAM which contains a compressed zbuffer. 216 * Each dword of the Z Mask contains compression information 217 * for 16 4x4 pixel tiles, that is 2 bits for each tile. 218 * On chips with 2 Z pipes, every other dword maps to a different 219 * pipe. On newer chipsets, there is a new compression mode 220 * with 8x8 pixel tiles per 2 bits. 221 * 222 * 3) The FASTFILL bit has nothing to do with filling. It only tells hw 223 * it should look in the ZMASK RAM first before fetching from a real 224 * zbuffer. 225 * 226 * 4) If a pixel is in a cleared state, ZB_DEPTHCLEARVALUE is returned 227 * during zbuffer reads instead of the value that is actually stored 228 * in the zbuffer memory. A pixel is in a cleared state when its ZMASK 229 * is equal to 0. Therefore, if you clear ZMASK with zeros, you may 230 * leave the zbuffer memory uninitialized, but then you must enable 231 * compression, so that the ZMASK RAM is actually used. 232 * 233 * 5) Each 4x4 (or 8x8) tile is automatically decompressed and recompressed 234 * during zbuffer updates. A special decompressing operation should be 235 * used to fully decompress a zbuffer, which basically just stores all 236 * compressed tiles in ZMASK to the zbuffer memory. 237 * 238 * 6) For a 16-bit zbuffer, compression causes a hung with one or 239 * two samples and should not be used. 240 * 241 * 7) FORCE_COMPRESSED_STENCIL_VALUE should be enabled for stencil clears 242 * to avoid needless decompression. 243 * 244 * 8) Fastfill must not be used if reading of compressed Z data is disabled 245 * and writing of compressed Z data is enabled (RD/WR_COMP_ENABLE), 246 * i.e. it cannot be used to compress the zbuffer. 247 * 248 * 9) ZB_CB_CLEAR does not interact with zbuffer compression in any way. 249 * 250 * - Marek 251 */ 252 253 struct r300_context* r300 = r300_context(pipe); 254 struct pipe_framebuffer_state *fb = 255 (struct pipe_framebuffer_state*)r300->fb_state.state; 256 struct r300_hyperz_state *hyperz = 257 (struct r300_hyperz_state*)r300->hyperz_state.state; 258 uint32_t width = fb->width; 259 uint32_t height = fb->height; 260 uint32_t hyperz_dcv = hyperz->zb_depthclearvalue; 261 262 /* Use fast Z clear. 263 * The zbuffer must be in micro-tiled mode, otherwise it locks up. */ 264 if (buffers & PIPE_CLEAR_DEPTHSTENCIL) { 265 boolean zmask_clear, hiz_clear; 266 267 /* If both depth and stencil are present, they must be cleared together. */ 268 if (fb->zsbuf->texture->format == PIPE_FORMAT_S8_UINT_Z24_UNORM && 269 (buffers & PIPE_CLEAR_DEPTHSTENCIL) != PIPE_CLEAR_DEPTHSTENCIL) { 270 zmask_clear = FALSE; 271 hiz_clear = FALSE; 272 } else { 273 zmask_clear = r300_fast_zclear_allowed(r300, buffers); 274 hiz_clear = r300_hiz_clear_allowed(r300); 275 } 276 277 /* If we need Hyper-Z. */ 278 if (zmask_clear || hiz_clear) { 279 /* Try to obtain the access to Hyper-Z buffers if we don't have one. */ 280 if (!r300->hyperz_enabled && 281 (r300->screen->caps.is_r500 || debug_get_option_hyperz())) { 282 r300->hyperz_enabled = 283 r300->rws->cs_request_feature(r300->cs, 284 RADEON_FID_R300_HYPERZ_ACCESS, 285 TRUE); 286 if (r300->hyperz_enabled) { 287 /* Need to emit HyperZ buffer regs for the first time. */ 288 r300_mark_fb_state_dirty(r300, R300_CHANGED_HYPERZ_FLAG); 289 } 290 } 291 292 /* Setup Hyper-Z clears. */ 293 if (r300->hyperz_enabled) { 294 if (zmask_clear) { 295 hyperz_dcv = hyperz->zb_depthclearvalue = 296 r300_depth_clear_value(fb->zsbuf->format, depth, stencil); 297 298 r300_mark_atom_dirty(r300, &r300->zmask_clear); 299 r300_mark_atom_dirty(r300, &r300->gpu_flush); 300 buffers &= ~PIPE_CLEAR_DEPTHSTENCIL; 301 } 302 303 if (hiz_clear) { 304 r300->hiz_clear_value = r300_hiz_clear_value(depth); 305 r300_mark_atom_dirty(r300, &r300->hiz_clear); 306 r300_mark_atom_dirty(r300, &r300->gpu_flush); 307 } 308 r300->num_z_clears++; 309 } 310 } 311 } 312 313 /* Use fast color clear for an AA colorbuffer. 314 * The CMASK is shared between all colorbuffers, so we use it 315 * if there is only one colorbuffer bound. */ 316 if ((buffers & PIPE_CLEAR_COLOR) && fb->nr_cbufs == 1 && fb->cbufs[0] && 317 r300_resource(fb->cbufs[0]->texture)->tex.cmask_dwords) { 318 /* Try to obtain the access to the CMASK if we don't have one. */ 319 if (!r300->cmask_access) { 320 r300->cmask_access = 321 r300->rws->cs_request_feature(r300->cs, 322 RADEON_FID_R300_CMASK_ACCESS, 323 TRUE); 324 } 325 326 /* Setup the clear. */ 327 if (r300->cmask_access) { 328 /* Pair the resource with the CMASK to avoid other resources 329 * accessing it. */ 330 if (!r300->screen->cmask_resource) { 331 pipe_mutex_lock(r300->screen->cmask_mutex); 332 /* Double checking (first unlocked, then locked). */ 333 if (!r300->screen->cmask_resource) { 334 /* Don't reference this, so that the texture can be 335 * destroyed while set in cmask_resource. 336 * Then in texture_destroy, we set cmask_resource to NULL. */ 337 r300->screen->cmask_resource = fb->cbufs[0]->texture; 338 } 339 pipe_mutex_unlock(r300->screen->cmask_mutex); 340 } 341 342 if (r300->screen->cmask_resource == fb->cbufs[0]->texture) { 343 r300_set_clear_color(r300, color); 344 r300_mark_atom_dirty(r300, &r300->cmask_clear); 345 r300_mark_atom_dirty(r300, &r300->gpu_flush); 346 buffers &= ~PIPE_CLEAR_COLOR; 347 } 348 } 349 } 350 /* Enable CBZB clear. */ 351 else if (r300_cbzb_clear_allowed(r300, buffers)) { 352 struct r300_surface *surf = r300_surface(fb->cbufs[0]); 353 354 hyperz->zb_depthclearvalue = 355 r300_depth_clear_cb_value(surf->base.format, color->f); 356 357 width = surf->cbzb_width; 358 height = surf->cbzb_height; 359 360 r300->cbzb_clear = TRUE; 361 r300_mark_fb_state_dirty(r300, R300_CHANGED_HYPERZ_FLAG); 362 } 363 364 /* Clear. */ 365 if (buffers) { 366 /* Clear using the blitter. */ 367 r300_blitter_begin(r300, R300_CLEAR); 368 util_blitter_clear(r300->blitter, width, height, 1, 369 buffers, color, depth, stencil); 370 r300_blitter_end(r300); 371 } else if (r300->zmask_clear.dirty || 372 r300->hiz_clear.dirty || 373 r300->cmask_clear.dirty) { 374 /* Just clear zmask and hiz now, this does not use the standard draw 375 * procedure. */ 376 /* Calculate zmask_clear and hiz_clear atom sizes. */ 377 unsigned dwords = 378 r300->gpu_flush.size + 379 (r300->zmask_clear.dirty ? r300->zmask_clear.size : 0) + 380 (r300->hiz_clear.dirty ? r300->hiz_clear.size : 0) + 381 (r300->cmask_clear.dirty ? r300->cmask_clear.size : 0) + 382 r300_get_num_cs_end_dwords(r300); 383 384 /* Reserve CS space. */ 385 if (!r300->rws->cs_check_space(r300->cs, dwords)) { 386 r300_flush(&r300->context, RADEON_FLUSH_ASYNC, NULL); 387 } 388 389 /* Emit clear packets. */ 390 r300_emit_gpu_flush(r300, r300->gpu_flush.size, r300->gpu_flush.state); 391 r300->gpu_flush.dirty = FALSE; 392 393 if (r300->zmask_clear.dirty) { 394 r300_emit_zmask_clear(r300, r300->zmask_clear.size, 395 r300->zmask_clear.state); 396 r300->zmask_clear.dirty = FALSE; 397 } 398 if (r300->hiz_clear.dirty) { 399 r300_emit_hiz_clear(r300, r300->hiz_clear.size, 400 r300->hiz_clear.state); 401 r300->hiz_clear.dirty = FALSE; 402 } 403 if (r300->cmask_clear.dirty) { 404 r300_emit_cmask_clear(r300, r300->cmask_clear.size, 405 r300->cmask_clear.state); 406 r300->cmask_clear.dirty = FALSE; 407 } 408 } else { 409 assert(0); 410 } 411 412 /* Disable CBZB clear. */ 413 if (r300->cbzb_clear) { 414 r300->cbzb_clear = FALSE; 415 hyperz->zb_depthclearvalue = hyperz_dcv; 416 r300_mark_fb_state_dirty(r300, R300_CHANGED_HYPERZ_FLAG); 417 } 418 419 /* Enable fastfill and/or hiz. 420 * 421 * If we cleared zmask/hiz, it's in use now. The Hyper-Z state update 422 * looks if zmask/hiz is in use and programs hardware accordingly. */ 423 if (r300->zmask_in_use || r300->hiz_in_use) { 424 r300_mark_atom_dirty(r300, &r300->hyperz_state); 425 } 426 } 427 428 /* Clear a region of a color surface to a constant value. */ 429 static void r300_clear_render_target(struct pipe_context *pipe, 430 struct pipe_surface *dst, 431 const union pipe_color_union *color, 432 unsigned dstx, unsigned dsty, 433 unsigned width, unsigned height, 434 bool render_condition_enabled) 435 { 436 struct r300_context *r300 = r300_context(pipe); 437 438 r300_blitter_begin(r300, R300_CLEAR_SURFACE | 439 (render_condition_enabled ? 0 : R300_IGNORE_RENDER_COND)); 440 util_blitter_clear_render_target(r300->blitter, dst, color, 441 dstx, dsty, width, height); 442 r300_blitter_end(r300); 443 } 444 445 /* Clear a region of a depth stencil surface. */ 446 static void r300_clear_depth_stencil(struct pipe_context *pipe, 447 struct pipe_surface *dst, 448 unsigned clear_flags, 449 double depth, 450 unsigned stencil, 451 unsigned dstx, unsigned dsty, 452 unsigned width, unsigned height, 453 bool render_condition_enabled) 454 { 455 struct r300_context *r300 = r300_context(pipe); 456 struct pipe_framebuffer_state *fb = 457 (struct pipe_framebuffer_state*)r300->fb_state.state; 458 459 if (r300->zmask_in_use && !r300->locked_zbuffer) { 460 if (fb->zsbuf->texture == dst->texture) { 461 r300_decompress_zmask(r300); 462 } 463 } 464 465 /* XXX Do not decompress ZMask of the currently-set zbuffer. */ 466 r300_blitter_begin(r300, R300_CLEAR_SURFACE | 467 (render_condition_enabled ? 0 : R300_IGNORE_RENDER_COND)); 468 util_blitter_clear_depth_stencil(r300->blitter, dst, clear_flags, depth, stencil, 469 dstx, dsty, width, height); 470 r300_blitter_end(r300); 471 } 472 473 void r300_decompress_zmask(struct r300_context *r300) 474 { 475 struct pipe_framebuffer_state *fb = 476 (struct pipe_framebuffer_state*)r300->fb_state.state; 477 478 if (!r300->zmask_in_use || r300->locked_zbuffer) 479 return; 480 481 r300->zmask_decompress = TRUE; 482 r300_mark_atom_dirty(r300, &r300->hyperz_state); 483 484 r300_blitter_begin(r300, R300_DECOMPRESS); 485 util_blitter_custom_clear_depth(r300->blitter, fb->width, fb->height, 0, 486 r300->dsa_decompress_zmask); 487 r300_blitter_end(r300); 488 489 r300->zmask_decompress = FALSE; 490 r300->zmask_in_use = FALSE; 491 r300_mark_atom_dirty(r300, &r300->hyperz_state); 492 } 493 494 void r300_decompress_zmask_locked_unsafe(struct r300_context *r300) 495 { 496 struct pipe_framebuffer_state fb; 497 498 memset(&fb, 0, sizeof(fb)); 499 fb.width = r300->locked_zbuffer->width; 500 fb.height = r300->locked_zbuffer->height; 501 fb.zsbuf = r300->locked_zbuffer; 502 503 r300->context.set_framebuffer_state(&r300->context, &fb); 504 r300_decompress_zmask(r300); 505 } 506 507 void r300_decompress_zmask_locked(struct r300_context *r300) 508 { 509 struct pipe_framebuffer_state saved_fb; 510 511 memset(&saved_fb, 0, sizeof(saved_fb)); 512 util_copy_framebuffer_state(&saved_fb, r300->fb_state.state); 513 r300_decompress_zmask_locked_unsafe(r300); 514 r300->context.set_framebuffer_state(&r300->context, &saved_fb); 515 util_unreference_framebuffer_state(&saved_fb); 516 517 pipe_surface_reference(&r300->locked_zbuffer, NULL); 518 } 519 520 bool r300_is_blit_supported(enum pipe_format format) 521 { 522 const struct util_format_description *desc = 523 util_format_description(format); 524 525 return desc->layout == UTIL_FORMAT_LAYOUT_PLAIN || 526 desc->layout == UTIL_FORMAT_LAYOUT_S3TC || 527 desc->layout == UTIL_FORMAT_LAYOUT_RGTC; 528 } 529 530 /* Copy a block of pixels from one surface to another. */ 531 static void r300_resource_copy_region(struct pipe_context *pipe, 532 struct pipe_resource *dst, 533 unsigned dst_level, 534 unsigned dstx, unsigned dsty, unsigned dstz, 535 struct pipe_resource *src, 536 unsigned src_level, 537 const struct pipe_box *src_box) 538 { 539 struct pipe_screen *screen = pipe->screen; 540 struct r300_context *r300 = r300_context(pipe); 541 struct pipe_framebuffer_state *fb = 542 (struct pipe_framebuffer_state*)r300->fb_state.state; 543 unsigned src_width0 = r300_resource(src)->tex.width0; 544 unsigned src_height0 = r300_resource(src)->tex.height0; 545 unsigned dst_width0 = r300_resource(dst)->tex.width0; 546 unsigned dst_height0 = r300_resource(dst)->tex.height0; 547 unsigned layout; 548 struct pipe_box box, dstbox; 549 struct pipe_sampler_view src_templ, *src_view; 550 struct pipe_surface dst_templ, *dst_view; 551 552 /* Fallback for buffers. */ 553 if ((dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) || 554 !r300_is_blit_supported(dst->format)) { 555 util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz, 556 src, src_level, src_box); 557 return; 558 } 559 560 /* Can't read MSAA textures. */ 561 if (src->nr_samples > 1 || dst->nr_samples > 1) { 562 return; 563 } 564 565 /* The code below changes the texture format so that the copy can be done 566 * on hardware. E.g. depth-stencil surfaces are copied as RGBA 567 * colorbuffers. */ 568 569 util_blitter_default_dst_texture(&dst_templ, dst, dst_level, dstz); 570 util_blitter_default_src_texture(&src_templ, src, src_level); 571 572 layout = util_format_description(dst_templ.format)->layout; 573 574 /* Handle non-renderable plain formats. */ 575 if (layout == UTIL_FORMAT_LAYOUT_PLAIN && 576 (!screen->is_format_supported(screen, src_templ.format, src->target, 577 src->nr_samples, 578 PIPE_BIND_SAMPLER_VIEW) || 579 !screen->is_format_supported(screen, dst_templ.format, dst->target, 580 dst->nr_samples, 581 PIPE_BIND_RENDER_TARGET))) { 582 switch (util_format_get_blocksize(dst_templ.format)) { 583 case 1: 584 dst_templ.format = PIPE_FORMAT_I8_UNORM; 585 break; 586 case 2: 587 dst_templ.format = PIPE_FORMAT_B4G4R4A4_UNORM; 588 break; 589 case 4: 590 dst_templ.format = PIPE_FORMAT_B8G8R8A8_UNORM; 591 break; 592 case 8: 593 dst_templ.format = PIPE_FORMAT_R16G16B16A16_UNORM; 594 break; 595 default: 596 debug_printf("r300: copy_region: Unhandled format: %s. Falling back to software.\n" 597 "r300: copy_region: Software fallback doesn't work for tiled textures.\n", 598 util_format_short_name(dst_templ.format)); 599 } 600 src_templ.format = dst_templ.format; 601 } 602 603 /* Handle compressed formats. */ 604 if (layout == UTIL_FORMAT_LAYOUT_S3TC || 605 layout == UTIL_FORMAT_LAYOUT_RGTC) { 606 assert(src_templ.format == dst_templ.format); 607 608 box = *src_box; 609 src_box = &box; 610 611 dst_width0 = align(dst_width0, 4); 612 dst_height0 = align(dst_height0, 4); 613 src_width0 = align(src_width0, 4); 614 src_height0 = align(src_height0, 4); 615 box.width = align(box.width, 4); 616 box.height = align(box.height, 4); 617 618 switch (util_format_get_blocksize(dst_templ.format)) { 619 case 8: 620 /* one 4x4 pixel block has 8 bytes. 621 * we set 1 pixel = 4 bytes ===> 1 block corrensponds to 2 pixels. */ 622 dst_templ.format = PIPE_FORMAT_R8G8B8A8_UNORM; 623 dst_width0 = dst_width0 / 2; 624 src_width0 = src_width0 / 2; 625 dstx /= 2; 626 box.x /= 2; 627 box.width /= 2; 628 break; 629 case 16: 630 /* one 4x4 pixel block has 16 bytes. 631 * we set 1 pixel = 4 bytes ===> 1 block corresponds to 4 pixels. */ 632 dst_templ.format = PIPE_FORMAT_R8G8B8A8_UNORM; 633 break; 634 } 635 src_templ.format = dst_templ.format; 636 637 dst_height0 = dst_height0 / 4; 638 src_height0 = src_height0 / 4; 639 dsty /= 4; 640 box.y /= 4; 641 box.height /= 4; 642 } 643 644 /* Fallback for textures. */ 645 if (!screen->is_format_supported(screen, dst_templ.format, 646 dst->target, dst->nr_samples, 647 PIPE_BIND_RENDER_TARGET) || 648 !screen->is_format_supported(screen, src_templ.format, 649 src->target, src->nr_samples, 650 PIPE_BIND_SAMPLER_VIEW)) { 651 assert(0 && "this shouldn't happen, update r300_is_blit_supported"); 652 util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz, 653 src, src_level, src_box); 654 return; 655 } 656 657 /* Decompress ZMASK. */ 658 if (r300->zmask_in_use && !r300->locked_zbuffer) { 659 if (fb->zsbuf->texture == src || 660 fb->zsbuf->texture == dst) { 661 r300_decompress_zmask(r300); 662 } 663 } 664 665 dst_view = r300_create_surface_custom(pipe, dst, &dst_templ, dst_width0, dst_height0); 666 src_view = r300_create_sampler_view_custom(pipe, src, &src_templ, src_width0, src_height0); 667 668 u_box_3d(dstx, dsty, dstz, abs(src_box->width), abs(src_box->height), 669 abs(src_box->depth), &dstbox); 670 671 r300_blitter_begin(r300, R300_COPY); 672 util_blitter_blit_generic(r300->blitter, dst_view, &dstbox, 673 src_view, src_box, src_width0, src_height0, 674 PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL, 675 FALSE); 676 r300_blitter_end(r300); 677 678 pipe_surface_reference(&dst_view, NULL); 679 pipe_sampler_view_reference(&src_view, NULL); 680 } 681 682 static boolean r300_is_simple_msaa_resolve(const struct pipe_blit_info *info) 683 { 684 unsigned dst_width = u_minify(info->dst.resource->width0, info->dst.level); 685 unsigned dst_height = u_minify(info->dst.resource->height0, info->dst.level); 686 687 return info->src.resource->nr_samples > 1 && 688 info->dst.resource->nr_samples <= 1 && 689 info->dst.resource->format == info->src.resource->format && 690 info->dst.resource->format == info->dst.format && 691 info->src.resource->format == info->src.format && 692 !info->scissor_enable && 693 info->mask == PIPE_MASK_RGBA && 694 dst_width == info->src.resource->width0 && 695 dst_height == info->src.resource->height0 && 696 info->dst.box.x == 0 && 697 info->dst.box.y == 0 && 698 info->dst.box.width == dst_width && 699 info->dst.box.height == dst_height && 700 info->src.box.x == 0 && 701 info->src.box.y == 0 && 702 info->src.box.width == dst_width && 703 info->src.box.height == dst_height && 704 (r300_resource(info->dst.resource)->tex.microtile != RADEON_LAYOUT_LINEAR || 705 r300_resource(info->dst.resource)->tex.macrotile[info->dst.level] != RADEON_LAYOUT_LINEAR); 706 } 707 708 static void r300_simple_msaa_resolve(struct pipe_context *pipe, 709 struct pipe_resource *dst, 710 unsigned dst_level, 711 unsigned dst_layer, 712 struct pipe_resource *src, 713 enum pipe_format format) 714 { 715 struct r300_context *r300 = r300_context(pipe); 716 struct r300_surface *srcsurf, *dstsurf; 717 struct pipe_surface surf_tmpl; 718 struct r300_aa_state *aa = (struct r300_aa_state*)r300->aa_state.state; 719 720 memset(&surf_tmpl, 0, sizeof(surf_tmpl)); 721 surf_tmpl.format = format; 722 srcsurf = r300_surface(pipe->create_surface(pipe, src, &surf_tmpl)); 723 724 surf_tmpl.format = format; 725 surf_tmpl.u.tex.level = dst_level; 726 surf_tmpl.u.tex.first_layer = 727 surf_tmpl.u.tex.last_layer = dst_layer; 728 dstsurf = r300_surface(pipe->create_surface(pipe, dst, &surf_tmpl)); 729 730 /* COLORPITCH should contain the tiling info of the resolve buffer. 731 * The tiling of the AA buffer isn't programmable anyway. */ 732 srcsurf->pitch &= ~(R300_COLOR_TILE(1) | R300_COLOR_MICROTILE(3)); 733 srcsurf->pitch |= dstsurf->pitch & (R300_COLOR_TILE(1) | R300_COLOR_MICROTILE(3)); 734 735 /* Enable AA resolve. */ 736 aa->dest = dstsurf; 737 r300->aa_state.size = 8; 738 r300_mark_atom_dirty(r300, &r300->aa_state); 739 740 /* Resolve the surface. */ 741 r300_blitter_begin(r300, R300_CLEAR_SURFACE); 742 util_blitter_custom_color(r300->blitter, &srcsurf->base, NULL); 743 r300_blitter_end(r300); 744 745 /* Disable AA resolve. */ 746 aa->dest = NULL; 747 r300->aa_state.size = 4; 748 r300_mark_atom_dirty(r300, &r300->aa_state); 749 750 pipe_surface_reference((struct pipe_surface**)&srcsurf, NULL); 751 pipe_surface_reference((struct pipe_surface**)&dstsurf, NULL); 752 } 753 754 static void r300_msaa_resolve(struct pipe_context *pipe, 755 const struct pipe_blit_info *info) 756 { 757 struct r300_context *r300 = r300_context(pipe); 758 struct pipe_screen *screen = pipe->screen; 759 struct pipe_resource *tmp, templ; 760 struct pipe_blit_info blit; 761 762 assert(info->src.level == 0); 763 assert(info->src.box.z == 0); 764 assert(info->src.box.depth == 1); 765 assert(info->dst.box.depth == 1); 766 767 if (r300_is_simple_msaa_resolve(info)) { 768 r300_simple_msaa_resolve(pipe, info->dst.resource, info->dst.level, 769 info->dst.box.z, info->src.resource, 770 info->src.format); 771 return; 772 } 773 774 /* resolve into a temporary texture, then blit */ 775 memset(&templ, 0, sizeof(templ)); 776 templ.target = PIPE_TEXTURE_2D; 777 templ.format = info->src.resource->format; 778 templ.width0 = info->src.resource->width0; 779 templ.height0 = info->src.resource->height0; 780 templ.depth0 = 1; 781 templ.array_size = 1; 782 templ.usage = PIPE_USAGE_DEFAULT; 783 templ.flags = R300_RESOURCE_FORCE_MICROTILING; 784 785 tmp = screen->resource_create(screen, &templ); 786 787 /* resolve */ 788 r300_simple_msaa_resolve(pipe, tmp, 0, 0, info->src.resource, 789 info->src.format); 790 791 /* blit */ 792 blit = *info; 793 blit.src.resource = tmp; 794 blit.src.box.z = 0; 795 796 r300_blitter_begin(r300, R300_BLIT | R300_IGNORE_RENDER_COND); 797 util_blitter_blit(r300->blitter, &blit); 798 r300_blitter_end(r300); 799 800 pipe_resource_reference(&tmp, NULL); 801 } 802 803 static void r300_blit(struct pipe_context *pipe, 804 const struct pipe_blit_info *blit) 805 { 806 struct r300_context *r300 = r300_context(pipe); 807 struct pipe_framebuffer_state *fb = 808 (struct pipe_framebuffer_state*)r300->fb_state.state; 809 struct pipe_blit_info info = *blit; 810 811 /* The driver supports sRGB textures but not framebuffers. Blitting 812 * from sRGB to sRGB should be the same as blitting from linear 813 * to linear, so use that, This avoids incorrect linearization. 814 */ 815 if (util_format_is_srgb(info.src.format)) { 816 info.src.format = util_format_linear(info.src.format); 817 info.dst.format = util_format_linear(info.dst.format); 818 } 819 820 /* MSAA resolve. */ 821 if (info.src.resource->nr_samples > 1 && 822 !util_format_is_depth_or_stencil(info.src.resource->format)) { 823 r300_msaa_resolve(pipe, &info); 824 return; 825 } 826 827 /* Can't read MSAA textures. */ 828 if (info.src.resource->nr_samples > 1) { 829 return; 830 } 831 832 /* Blit a combined depth-stencil resource as color. 833 * S8Z24 is the only supported stencil format. */ 834 if ((info.mask & PIPE_MASK_S) && 835 info.src.format == PIPE_FORMAT_S8_UINT_Z24_UNORM && 836 info.dst.format == PIPE_FORMAT_S8_UINT_Z24_UNORM) { 837 if (info.dst.resource->nr_samples > 1) { 838 /* Cannot do that with MSAA buffers. */ 839 info.mask &= ~PIPE_MASK_S; 840 if (!(info.mask & PIPE_MASK_Z)) { 841 return; 842 } 843 } else { 844 /* Single-sample buffer. */ 845 info.src.format = PIPE_FORMAT_B8G8R8A8_UNORM; 846 info.dst.format = PIPE_FORMAT_B8G8R8A8_UNORM; 847 if (info.mask & PIPE_MASK_Z) { 848 info.mask = PIPE_MASK_RGBA; /* depth+stencil */ 849 } else { 850 info.mask = PIPE_MASK_B; /* stencil only */ 851 } 852 } 853 } 854 855 /* Decompress ZMASK. */ 856 if (r300->zmask_in_use && !r300->locked_zbuffer) { 857 if (fb->zsbuf->texture == info.src.resource || 858 fb->zsbuf->texture == info.dst.resource) { 859 r300_decompress_zmask(r300); 860 } 861 } 862 863 r300_blitter_begin(r300, R300_BLIT | 864 (info.render_condition_enable ? 0 : R300_IGNORE_RENDER_COND)); 865 util_blitter_blit(r300->blitter, &info); 866 r300_blitter_end(r300); 867 } 868 869 static void r300_flush_resource(struct pipe_context *ctx, 870 struct pipe_resource *resource) 871 { 872 } 873 874 void r300_init_blit_functions(struct r300_context *r300) 875 { 876 r300->context.clear = r300_clear; 877 r300->context.clear_render_target = r300_clear_render_target; 878 r300->context.clear_depth_stencil = r300_clear_depth_stencil; 879 r300->context.resource_copy_region = r300_resource_copy_region; 880 r300->context.blit = r300_blit; 881 r300->context.flush_resource = r300_flush_resource; 882 } 883
