u_vbuf.c revision c727cc175bcbf96f12f27c46819667948d5ebbe2
1/************************************************************************** 2 * 3 * Copyright 2011 Marek Olšák <maraeo@gmail.com> 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 AUTHORS 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_vbuf.h" 29 30#include "util/u_format.h" 31#include "util/u_inlines.h" 32#include "util/u_memory.h" 33#include "util/u_upload_mgr.h" 34#include "translate/translate.h" 35#include "translate/translate_cache.h" 36 37struct u_vbuf_elements { 38 unsigned count; 39 struct pipe_vertex_element ve[PIPE_MAX_ATTRIBS]; 40 41 unsigned src_format_size[PIPE_MAX_ATTRIBS]; 42 43 /* If (velem[i].src_format != native_format[i]), the vertex buffer 44 * referenced by the vertex element cannot be used for rendering and 45 * its vertex data must be translated to native_format[i]. */ 46 enum pipe_format native_format[PIPE_MAX_ATTRIBS]; 47 unsigned native_format_size[PIPE_MAX_ATTRIBS]; 48 49 /* This might mean two things: 50 * - src_format != native_format, as discussed above. 51 * - src_offset % 4 != 0 (if the caps don't allow such an offset). */ 52 boolean incompatible_layout; 53 /* Per-element flags. */ 54 boolean incompatible_layout_elem[PIPE_MAX_ATTRIBS]; 55}; 56 57struct u_vbuf_priv { 58 struct u_vbuf b; 59 struct pipe_context *pipe; 60 struct translate_cache *translate_cache; 61 62 /* Vertex element state bound by the state tracker. */ 63 void *saved_ve; 64 /* and its associated helper structure for this module. */ 65 struct u_vbuf_elements *ve; 66 67 /* Vertex elements used for the translate fallback. */ 68 struct pipe_vertex_element fallback_velems[PIPE_MAX_ATTRIBS]; 69 /* If non-NULL, this is a vertex element state used for the translate 70 * fallback and therefore used for rendering too. */ 71 void *fallback_ve; 72 /* The vertex buffer slot index where translated vertices have been 73 * stored in. */ 74 unsigned fallback_vb_slot; 75 /* When binding the fallback vertex element state, we don't want to 76 * change saved_ve and ve. This is set to TRUE in such cases. */ 77 boolean ve_binding_lock; 78 79 /* Whether there is any user buffer. */ 80 boolean any_user_vbs; 81 /* Whether there is a buffer with a non-native layout. */ 82 boolean incompatible_vb_layout; 83 /* Per-buffer flags. */ 84 boolean incompatible_vb[PIPE_MAX_ATTRIBS]; 85}; 86 87static void u_vbuf_init_format_caps(struct u_vbuf_priv *mgr) 88{ 89 struct pipe_screen *screen = mgr->pipe->screen; 90 91 mgr->b.caps.format_fixed32 = 92 screen->is_format_supported(screen, PIPE_FORMAT_R32_FIXED, PIPE_BUFFER, 93 0, PIPE_BIND_VERTEX_BUFFER); 94 95 mgr->b.caps.format_float16 = 96 screen->is_format_supported(screen, PIPE_FORMAT_R16_FLOAT, PIPE_BUFFER, 97 0, PIPE_BIND_VERTEX_BUFFER); 98 99 mgr->b.caps.format_float64 = 100 screen->is_format_supported(screen, PIPE_FORMAT_R64_FLOAT, PIPE_BUFFER, 101 0, PIPE_BIND_VERTEX_BUFFER); 102 103 mgr->b.caps.format_norm32 = 104 screen->is_format_supported(screen, PIPE_FORMAT_R32_UNORM, PIPE_BUFFER, 105 0, PIPE_BIND_VERTEX_BUFFER) && 106 screen->is_format_supported(screen, PIPE_FORMAT_R32_SNORM, PIPE_BUFFER, 107 0, PIPE_BIND_VERTEX_BUFFER); 108 109 mgr->b.caps.format_scaled32 = 110 screen->is_format_supported(screen, PIPE_FORMAT_R32_USCALED, PIPE_BUFFER, 111 0, PIPE_BIND_VERTEX_BUFFER) && 112 screen->is_format_supported(screen, PIPE_FORMAT_R32_SSCALED, PIPE_BUFFER, 113 0, PIPE_BIND_VERTEX_BUFFER); 114} 115 116struct u_vbuf * 117u_vbuf_create(struct pipe_context *pipe, 118 unsigned upload_buffer_size, 119 unsigned upload_buffer_alignment, 120 unsigned upload_buffer_bind, 121 enum u_fetch_alignment fetch_alignment) 122{ 123 struct u_vbuf_priv *mgr = CALLOC_STRUCT(u_vbuf_priv); 124 125 mgr->pipe = pipe; 126 mgr->translate_cache = translate_cache_create(); 127 mgr->fallback_vb_slot = ~0; 128 129 mgr->b.uploader = u_upload_create(pipe, upload_buffer_size, 130 upload_buffer_alignment, 131 upload_buffer_bind); 132 133 mgr->b.caps.fetch_dword_unaligned = 134 fetch_alignment == U_VERTEX_FETCH_BYTE_ALIGNED; 135 136 u_vbuf_init_format_caps(mgr); 137 138 return &mgr->b; 139} 140 141void u_vbuf_destroy(struct u_vbuf *mgrb) 142{ 143 struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb; 144 unsigned i; 145 146 for (i = 0; i < mgr->b.nr_vertex_buffers; i++) { 147 pipe_resource_reference(&mgr->b.vertex_buffer[i].buffer, NULL); 148 } 149 for (i = 0; i < mgr->b.nr_real_vertex_buffers; i++) { 150 pipe_resource_reference(&mgr->b.real_vertex_buffer[i].buffer, NULL); 151 } 152 153 translate_cache_destroy(mgr->translate_cache); 154 u_upload_destroy(mgr->b.uploader); 155 FREE(mgr); 156} 157 158 159static unsigned u_vbuf_get_free_real_vb_slot(struct u_vbuf_priv *mgr) 160{ 161 unsigned i, nr = mgr->ve->count; 162 boolean used_vb[PIPE_MAX_ATTRIBS] = {0}; 163 164 for (i = 0; i < nr; i++) { 165 if (!mgr->ve->incompatible_layout_elem[i]) { 166 unsigned index = mgr->ve->ve[i].vertex_buffer_index; 167 168 if (!mgr->incompatible_vb[index]) { 169 used_vb[index] = TRUE; 170 } 171 } 172 } 173 174 for (i = 0; i < PIPE_MAX_ATTRIBS; i++) { 175 if (!used_vb[i]) { 176 if (i >= mgr->b.nr_real_vertex_buffers) { 177 mgr->b.nr_real_vertex_buffers = i+1; 178 } 179 return i; 180 } 181 } 182 return ~0; 183} 184 185static void 186u_vbuf_translate_begin(struct u_vbuf_priv *mgr, 187 int min_index, int max_index) 188{ 189 struct translate_key key; 190 struct translate_element *te; 191 unsigned tr_elem_index[PIPE_MAX_ATTRIBS]; 192 struct translate *tr; 193 boolean vb_translated[PIPE_MAX_ATTRIBS] = {0}; 194 uint8_t *out_map; 195 struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS] = {0}; 196 struct pipe_resource *out_buffer = NULL; 197 unsigned i, out_offset, num_verts = max_index + 1 - min_index; 198 boolean upload_flushed = FALSE; 199 200 memset(&key, 0, sizeof(key)); 201 memset(tr_elem_index, 0xff, sizeof(tr_elem_index)); 202 203 /* Get a new vertex buffer slot. */ 204 mgr->fallback_vb_slot = u_vbuf_get_free_real_vb_slot(mgr); 205 206 if (mgr->fallback_vb_slot == ~0) { 207 return; /* XXX error, not enough attribs */ 208 } 209 210 /* Initialize the description of how vertices should be translated. */ 211 for (i = 0; i < mgr->ve->count; i++) { 212 enum pipe_format output_format = mgr->ve->native_format[i]; 213 unsigned output_format_size = mgr->ve->native_format_size[i]; 214 215 /* Check for support. */ 216 if (!mgr->ve->incompatible_layout_elem[i] && 217 !mgr->incompatible_vb[mgr->ve->ve[i].vertex_buffer_index]) { 218 continue; 219 } 220 221 assert(translate_is_output_format_supported(output_format)); 222 223 /* Add this vertex element. */ 224 te = &key.element[key.nr_elements]; 225 te->type = TRANSLATE_ELEMENT_NORMAL; 226 te->instance_divisor = 0; 227 te->input_buffer = mgr->ve->ve[i].vertex_buffer_index; 228 te->input_format = mgr->ve->ve[i].src_format; 229 te->input_offset = mgr->ve->ve[i].src_offset; 230 te->output_format = output_format; 231 te->output_offset = key.output_stride; 232 233 key.output_stride += output_format_size; 234 vb_translated[mgr->ve->ve[i].vertex_buffer_index] = TRUE; 235 tr_elem_index[i] = key.nr_elements; 236 key.nr_elements++; 237 } 238 239 /* Get a translate object. */ 240 tr = translate_cache_find(mgr->translate_cache, &key); 241 242 /* Map buffers we want to translate. */ 243 for (i = 0; i < mgr->b.nr_vertex_buffers; i++) { 244 if (vb_translated[i]) { 245 struct pipe_vertex_buffer *vb = &mgr->b.vertex_buffer[i]; 246 unsigned offset = vb->buffer_offset + vb->stride * min_index; 247 unsigned size = vb->stride ? num_verts * vb->stride 248 : vb->buffer->width0 - offset; 249 uint8_t *map; 250 251 if (u_vbuf_resource(vb->buffer)->user_ptr) { 252 map = u_vbuf_resource(vb->buffer)->user_ptr + offset; 253 } else { 254 map = pipe_buffer_map_range(mgr->pipe, vb->buffer, offset, size, 255 PIPE_TRANSFER_READ, &vb_transfer[i]); 256 } 257 258 tr->set_buffer(tr, i, map, vb->stride, ~0); 259 } 260 } 261 262 /* Create and map the output buffer. */ 263 u_upload_alloc(mgr->b.uploader, 264 key.output_stride * min_index, 265 key.output_stride * num_verts, 266 &out_offset, &out_buffer, &upload_flushed, 267 (void**)&out_map); 268 269 out_offset -= key.output_stride * min_index; 270 271 /* Translate. */ 272 tr->run(tr, 0, num_verts, 0, out_map); 273 274 /* Unmap all buffers. */ 275 for (i = 0; i < mgr->b.nr_vertex_buffers; i++) { 276 if (vb_transfer[i]) { 277 pipe_buffer_unmap(mgr->pipe, vb_transfer[i]); 278 } 279 } 280 281 /* Setup the new vertex buffer. */ 282 mgr->b.real_vertex_buffer[mgr->fallback_vb_slot].buffer_offset = out_offset; 283 mgr->b.real_vertex_buffer[mgr->fallback_vb_slot].stride = key.output_stride; 284 285 /* Move the buffer reference. */ 286 pipe_resource_reference( 287 &mgr->b.real_vertex_buffer[mgr->fallback_vb_slot].buffer, NULL); 288 mgr->b.real_vertex_buffer[mgr->fallback_vb_slot].buffer = out_buffer; 289 out_buffer = NULL; 290 291 /* Setup new vertex elements. */ 292 for (i = 0; i < mgr->ve->count; i++) { 293 if (tr_elem_index[i] < key.nr_elements) { 294 te = &key.element[tr_elem_index[i]]; 295 mgr->fallback_velems[i].instance_divisor = mgr->ve->ve[i].instance_divisor; 296 mgr->fallback_velems[i].src_format = te->output_format; 297 mgr->fallback_velems[i].src_offset = te->output_offset; 298 mgr->fallback_velems[i].vertex_buffer_index = mgr->fallback_vb_slot; 299 } else { 300 memcpy(&mgr->fallback_velems[i], &mgr->ve->ve[i], 301 sizeof(struct pipe_vertex_element)); 302 } 303 } 304 305 306 mgr->fallback_ve = 307 mgr->pipe->create_vertex_elements_state(mgr->pipe, mgr->ve->count, 308 mgr->fallback_velems); 309 310 /* Preserve saved_ve. */ 311 mgr->ve_binding_lock = TRUE; 312 mgr->pipe->bind_vertex_elements_state(mgr->pipe, mgr->fallback_ve); 313 mgr->ve_binding_lock = FALSE; 314} 315 316static void u_vbuf_translate_end(struct u_vbuf_priv *mgr) 317{ 318 if (mgr->fallback_ve == NULL) { 319 return; 320 } 321 322 /* Restore vertex elements. */ 323 /* Note that saved_ve will be overwritten in bind_vertex_elements_state. */ 324 mgr->pipe->bind_vertex_elements_state(mgr->pipe, mgr->saved_ve); 325 mgr->pipe->delete_vertex_elements_state(mgr->pipe, mgr->fallback_ve); 326 mgr->fallback_ve = NULL; 327 328 /* Delete the now-unused VBO. */ 329 pipe_resource_reference(&mgr->b.real_vertex_buffer[mgr->fallback_vb_slot].buffer, 330 NULL); 331 mgr->fallback_vb_slot = ~0; 332 mgr->b.nr_real_vertex_buffers = mgr->b.nr_vertex_buffers; 333} 334 335#define FORMAT_REPLACE(what, withwhat) \ 336 case PIPE_FORMAT_##what: format = PIPE_FORMAT_##withwhat; break 337 338struct u_vbuf_elements * 339u_vbuf_create_vertex_elements(struct u_vbuf *mgrb, 340 unsigned count, 341 const struct pipe_vertex_element *attribs, 342 struct pipe_vertex_element *native_attribs) 343{ 344 struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb; 345 unsigned i; 346 struct u_vbuf_elements *ve = CALLOC_STRUCT(u_vbuf_elements); 347 348 ve->count = count; 349 350 if (!count) { 351 return ve; 352 } 353 354 memcpy(ve->ve, attribs, sizeof(struct pipe_vertex_element) * count); 355 memcpy(native_attribs, attribs, sizeof(struct pipe_vertex_element) * count); 356 357 /* Set the best native format in case the original format is not 358 * supported. */ 359 for (i = 0; i < count; i++) { 360 enum pipe_format format = ve->ve[i].src_format; 361 362 ve->src_format_size[i] = util_format_get_blocksize(format); 363 364 /* Choose a native format. 365 * For now we don't care about the alignment, that's going to 366 * be sorted out later. */ 367 if (!mgr->b.caps.format_fixed32) { 368 switch (format) { 369 FORMAT_REPLACE(R32_FIXED, R32_FLOAT); 370 FORMAT_REPLACE(R32G32_FIXED, R32G32_FLOAT); 371 FORMAT_REPLACE(R32G32B32_FIXED, R32G32B32_FLOAT); 372 FORMAT_REPLACE(R32G32B32A32_FIXED, R32G32B32A32_FLOAT); 373 default:; 374 } 375 } 376 if (!mgr->b.caps.format_float16) { 377 switch (format) { 378 FORMAT_REPLACE(R16_FLOAT, R32_FLOAT); 379 FORMAT_REPLACE(R16G16_FLOAT, R32G32_FLOAT); 380 FORMAT_REPLACE(R16G16B16_FLOAT, R32G32B32_FLOAT); 381 FORMAT_REPLACE(R16G16B16A16_FLOAT, R32G32B32A32_FLOAT); 382 default:; 383 } 384 } 385 if (!mgr->b.caps.format_float64) { 386 switch (format) { 387 FORMAT_REPLACE(R64_FLOAT, R32_FLOAT); 388 FORMAT_REPLACE(R64G64_FLOAT, R32G32_FLOAT); 389 FORMAT_REPLACE(R64G64B64_FLOAT, R32G32B32_FLOAT); 390 FORMAT_REPLACE(R64G64B64A64_FLOAT, R32G32B32A32_FLOAT); 391 default:; 392 } 393 } 394 if (!mgr->b.caps.format_norm32) { 395 switch (format) { 396 FORMAT_REPLACE(R32_UNORM, R32_FLOAT); 397 FORMAT_REPLACE(R32G32_UNORM, R32G32_FLOAT); 398 FORMAT_REPLACE(R32G32B32_UNORM, R32G32B32_FLOAT); 399 FORMAT_REPLACE(R32G32B32A32_UNORM, R32G32B32A32_FLOAT); 400 FORMAT_REPLACE(R32_SNORM, R32_FLOAT); 401 FORMAT_REPLACE(R32G32_SNORM, R32G32_FLOAT); 402 FORMAT_REPLACE(R32G32B32_SNORM, R32G32B32_FLOAT); 403 FORMAT_REPLACE(R32G32B32A32_SNORM, R32G32B32A32_FLOAT); 404 default:; 405 } 406 } 407 if (!mgr->b.caps.format_scaled32) { 408 switch (format) { 409 FORMAT_REPLACE(R32_USCALED, R32_FLOAT); 410 FORMAT_REPLACE(R32G32_USCALED, R32G32_FLOAT); 411 FORMAT_REPLACE(R32G32B32_USCALED, R32G32B32_FLOAT); 412 FORMAT_REPLACE(R32G32B32A32_USCALED,R32G32B32A32_FLOAT); 413 FORMAT_REPLACE(R32_SSCALED, R32_FLOAT); 414 FORMAT_REPLACE(R32G32_SSCALED, R32G32_FLOAT); 415 FORMAT_REPLACE(R32G32B32_SSCALED, R32G32B32_FLOAT); 416 FORMAT_REPLACE(R32G32B32A32_SSCALED,R32G32B32A32_FLOAT); 417 default:; 418 } 419 } 420 421 native_attribs[i].src_format = format; 422 ve->native_format[i] = format; 423 ve->native_format_size[i] = 424 util_format_get_blocksize(ve->native_format[i]); 425 426 ve->incompatible_layout_elem[i] = 427 ve->ve[i].src_format != ve->native_format[i] || 428 (!mgr->b.caps.fetch_dword_unaligned && ve->ve[i].src_offset % 4 != 0); 429 ve->incompatible_layout = 430 ve->incompatible_layout || 431 ve->incompatible_layout_elem[i]; 432 } 433 434 /* Align the formats to the size of DWORD if needed. */ 435 if (!mgr->b.caps.fetch_dword_unaligned) { 436 for (i = 0; i < count; i++) { 437 ve->native_format_size[i] = align(ve->native_format_size[i], 4); 438 } 439 } 440 441 return ve; 442} 443 444void u_vbuf_bind_vertex_elements(struct u_vbuf *mgrb, 445 void *cso, 446 struct u_vbuf_elements *ve) 447{ 448 struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb; 449 450 if (!cso) { 451 return; 452 } 453 454 if (!mgr->ve_binding_lock) { 455 mgr->saved_ve = cso; 456 mgr->ve = ve; 457 } 458} 459 460void u_vbuf_destroy_vertex_elements(struct u_vbuf *mgr, 461 struct u_vbuf_elements *ve) 462{ 463 FREE(ve); 464} 465 466void u_vbuf_set_vertex_buffers(struct u_vbuf *mgrb, 467 unsigned count, 468 const struct pipe_vertex_buffer *bufs) 469{ 470 struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb; 471 unsigned i; 472 473 mgr->any_user_vbs = FALSE; 474 mgr->incompatible_vb_layout = FALSE; 475 memset(mgr->incompatible_vb, 0, sizeof(mgr->incompatible_vb)); 476 477 if (!mgr->b.caps.fetch_dword_unaligned) { 478 /* Check if the strides and offsets are aligned to the size of DWORD. */ 479 for (i = 0; i < count; i++) { 480 if (bufs[i].buffer) { 481 if (bufs[i].stride % 4 != 0 || 482 bufs[i].buffer_offset % 4 != 0) { 483 mgr->incompatible_vb_layout = TRUE; 484 mgr->incompatible_vb[i] = TRUE; 485 } 486 } 487 } 488 } 489 490 for (i = 0; i < count; i++) { 491 const struct pipe_vertex_buffer *vb = &bufs[i]; 492 493 pipe_resource_reference(&mgr->b.vertex_buffer[i].buffer, vb->buffer); 494 495 mgr->b.real_vertex_buffer[i].buffer_offset = 496 mgr->b.vertex_buffer[i].buffer_offset = vb->buffer_offset; 497 498 mgr->b.real_vertex_buffer[i].stride = 499 mgr->b.vertex_buffer[i].stride = vb->stride; 500 501 if (!vb->buffer || 502 mgr->incompatible_vb[i]) { 503 pipe_resource_reference(&mgr->b.real_vertex_buffer[i].buffer, NULL); 504 continue; 505 } 506 507 if (u_vbuf_resource(vb->buffer)->user_ptr) { 508 pipe_resource_reference(&mgr->b.real_vertex_buffer[i].buffer, NULL); 509 mgr->any_user_vbs = TRUE; 510 continue; 511 } 512 513 pipe_resource_reference(&mgr->b.real_vertex_buffer[i].buffer, vb->buffer); 514 } 515 516 for (i = count; i < mgr->b.nr_vertex_buffers; i++) { 517 pipe_resource_reference(&mgr->b.vertex_buffer[i].buffer, NULL); 518 } 519 for (i = count; i < mgr->b.nr_real_vertex_buffers; i++) { 520 pipe_resource_reference(&mgr->b.real_vertex_buffer[i].buffer, NULL); 521 } 522 523 mgr->b.nr_vertex_buffers = count; 524 mgr->b.nr_real_vertex_buffers = count; 525} 526 527void u_vbuf_set_index_buffer(struct u_vbuf *mgr, 528 const struct pipe_index_buffer *ib) 529{ 530 if (ib && ib->buffer) { 531 assert(ib->offset % ib->index_size == 0); 532 pipe_resource_reference(&mgr->index_buffer.buffer, ib->buffer); 533 mgr->index_buffer.offset = ib->offset; 534 mgr->index_buffer.index_size = ib->index_size; 535 } else { 536 pipe_resource_reference(&mgr->index_buffer.buffer, NULL); 537 } 538} 539 540static void 541u_vbuf_upload_buffers(struct u_vbuf_priv *mgr, 542 int min_index, int max_index, 543 unsigned instance_count) 544{ 545 unsigned i; 546 unsigned count = max_index + 1 - min_index; 547 unsigned nr_velems = mgr->ve->count; 548 unsigned nr_vbufs = mgr->b.nr_vertex_buffers; 549 struct pipe_vertex_element *velems = 550 mgr->fallback_ve ? mgr->fallback_velems : mgr->ve->ve; 551 unsigned start_offset[PIPE_MAX_ATTRIBS]; 552 unsigned end_offset[PIPE_MAX_ATTRIBS] = {0}; 553 554 /* Determine how much data needs to be uploaded. */ 555 for (i = 0; i < nr_velems; i++) { 556 struct pipe_vertex_element *velem = &velems[i]; 557 unsigned index = velem->vertex_buffer_index; 558 struct pipe_vertex_buffer *vb = &mgr->b.vertex_buffer[index]; 559 unsigned instance_div, first, size; 560 561 /* Skip the buffer generated by translate. */ 562 if (index == mgr->fallback_vb_slot) { 563 continue; 564 } 565 566 assert(vb->buffer); 567 568 if (!u_vbuf_resource(vb->buffer)->user_ptr) { 569 continue; 570 } 571 572 instance_div = velem->instance_divisor; 573 first = vb->buffer_offset + velem->src_offset; 574 575 if (!vb->stride) { 576 /* Constant attrib. */ 577 size = mgr->ve->src_format_size[i]; 578 } else if (instance_div) { 579 /* Per-instance attrib. */ 580 unsigned count = (instance_count + instance_div - 1) / instance_div; 581 size = vb->stride * (count - 1) + mgr->ve->src_format_size[i]; 582 } else { 583 /* Per-vertex attrib. */ 584 first += vb->stride * min_index; 585 size = vb->stride * (count - 1) + mgr->ve->src_format_size[i]; 586 } 587 588 /* Update offsets. */ 589 if (!end_offset[index]) { 590 start_offset[index] = first; 591 end_offset[index] = first + size; 592 } else { 593 if (first < start_offset[index]) 594 start_offset[index] = first; 595 if (first + size > end_offset[index]) 596 end_offset[index] = first + size; 597 } 598 } 599 600 /* Upload buffers. */ 601 for (i = 0; i < nr_vbufs; i++) { 602 unsigned start, end = end_offset[i]; 603 boolean flushed; 604 struct pipe_vertex_buffer *real_vb; 605 uint8_t *ptr; 606 607 if (!end) { 608 continue; 609 } 610 611 start = start_offset[i]; 612 assert(start < end); 613 614 real_vb = &mgr->b.real_vertex_buffer[i]; 615 ptr = u_vbuf_resource(mgr->b.vertex_buffer[i].buffer)->user_ptr; 616 617 u_upload_data(mgr->b.uploader, start, end - start, ptr + start, 618 &real_vb->buffer_offset, &real_vb->buffer, &flushed); 619 620 real_vb->buffer_offset -= start; 621 } 622} 623 624unsigned u_vbuf_draw_max_vertex_count(struct u_vbuf *mgrb) 625{ 626 struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb; 627 unsigned i, nr = mgr->ve->count; 628 struct pipe_vertex_element *velems = 629 mgr->fallback_ve ? mgr->fallback_velems : mgr->ve->ve; 630 unsigned result = ~0; 631 632 for (i = 0; i < nr; i++) { 633 struct pipe_vertex_buffer *vb = 634 &mgr->b.real_vertex_buffer[velems[i].vertex_buffer_index]; 635 unsigned size, max_count, value; 636 637 /* We're not interested in constant and per-instance attribs. */ 638 if (!vb->buffer || 639 !vb->stride || 640 velems[i].instance_divisor) { 641 continue; 642 } 643 644 size = vb->buffer->width0; 645 646 /* Subtract buffer_offset. */ 647 value = vb->buffer_offset; 648 if (value >= size) { 649 return 0; 650 } 651 size -= value; 652 653 /* Subtract src_offset. */ 654 value = velems[i].src_offset; 655 if (value >= size) { 656 return 0; 657 } 658 size -= value; 659 660 /* Subtract format_size. */ 661 value = mgr->ve->native_format_size[i]; 662 if (value >= size) { 663 return 0; 664 } 665 size -= value; 666 667 /* Compute the max count. */ 668 max_count = 1 + size / vb->stride; 669 result = MIN2(result, max_count); 670 } 671 return result; 672} 673 674static boolean u_vbuf_need_minmax_index(struct u_vbuf_priv *mgr) 675{ 676 unsigned i, nr = mgr->ve->count; 677 678 for (i = 0; i < nr; i++) { 679 struct pipe_vertex_buffer *vb; 680 unsigned index; 681 682 /* Per-instance attribs don't need min/max_index. */ 683 if (mgr->ve->ve[i].instance_divisor) { 684 continue; 685 } 686 687 index = mgr->ve->ve[i].vertex_buffer_index; 688 vb = &mgr->b.vertex_buffer[index]; 689 690 /* Constant attribs don't need min/max_index. */ 691 if (!vb->stride) { 692 continue; 693 } 694 695 /* Per-vertex attribs need min/max_index. */ 696 if (u_vbuf_resource(vb->buffer)->user_ptr || 697 mgr->ve->incompatible_layout_elem[i] || 698 mgr->incompatible_vb[index]) { 699 return TRUE; 700 } 701 } 702 703 return FALSE; 704} 705 706static void u_vbuf_get_minmax_index(struct pipe_context *pipe, 707 struct pipe_index_buffer *ib, 708 const struct pipe_draw_info *info, 709 int *out_min_index, 710 int *out_max_index) 711{ 712 struct pipe_transfer *transfer = NULL; 713 const void *indices; 714 unsigned i; 715 unsigned restart_index = info->restart_index; 716 717 if (u_vbuf_resource(ib->buffer)->user_ptr) { 718 indices = u_vbuf_resource(ib->buffer)->user_ptr + 719 ib->offset + info->start * ib->index_size; 720 } else { 721 indices = pipe_buffer_map_range(pipe, ib->buffer, 722 ib->offset + info->start * ib->index_size, 723 info->count * ib->index_size, 724 PIPE_TRANSFER_READ, &transfer); 725 } 726 727 switch (ib->index_size) { 728 case 4: { 729 const unsigned *ui_indices = (const unsigned*)indices; 730 unsigned max_ui = 0; 731 unsigned min_ui = ~0U; 732 if (info->primitive_restart) { 733 for (i = 0; i < info->count; i++) { 734 if (ui_indices[i] != restart_index) { 735 if (ui_indices[i] > max_ui) max_ui = ui_indices[i]; 736 if (ui_indices[i] < min_ui) min_ui = ui_indices[i]; 737 } 738 } 739 } 740 else { 741 for (i = 0; i < info->count; i++) { 742 if (ui_indices[i] > max_ui) max_ui = ui_indices[i]; 743 if (ui_indices[i] < min_ui) min_ui = ui_indices[i]; 744 } 745 } 746 *out_min_index = min_ui; 747 *out_max_index = max_ui; 748 break; 749 } 750 case 2: { 751 const unsigned short *us_indices = (const unsigned short*)indices; 752 unsigned max_us = 0; 753 unsigned min_us = ~0U; 754 if (info->primitive_restart) { 755 for (i = 0; i < info->count; i++) { 756 if (us_indices[i] != restart_index) { 757 if (us_indices[i] > max_us) max_us = us_indices[i]; 758 if (us_indices[i] < min_us) min_us = us_indices[i]; 759 } 760 } 761 } 762 else { 763 for (i = 0; i < info->count; i++) { 764 if (us_indices[i] > max_us) max_us = us_indices[i]; 765 if (us_indices[i] < min_us) min_us = us_indices[i]; 766 } 767 } 768 *out_min_index = min_us; 769 *out_max_index = max_us; 770 break; 771 } 772 case 1: { 773 const unsigned char *ub_indices = (const unsigned char*)indices; 774 unsigned max_ub = 0; 775 unsigned min_ub = ~0U; 776 if (info->primitive_restart) { 777 for (i = 0; i < info->count; i++) { 778 if (ub_indices[i] != restart_index) { 779 if (ub_indices[i] > max_ub) max_ub = ub_indices[i]; 780 if (ub_indices[i] < min_ub) min_ub = ub_indices[i]; 781 } 782 } 783 } 784 else { 785 for (i = 0; i < info->count; i++) { 786 if (ub_indices[i] > max_ub) max_ub = ub_indices[i]; 787 if (ub_indices[i] < min_ub) min_ub = ub_indices[i]; 788 } 789 } 790 *out_min_index = min_ub; 791 *out_max_index = max_ub; 792 break; 793 } 794 default: 795 assert(0); 796 *out_min_index = 0; 797 *out_max_index = 0; 798 } 799 800 if (transfer) { 801 pipe_buffer_unmap(pipe, transfer); 802 } 803} 804 805enum u_vbuf_return_flags 806u_vbuf_draw_begin(struct u_vbuf *mgrb, 807 const struct pipe_draw_info *info) 808{ 809 struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb; 810 int min_index, max_index; 811 812 if (!mgr->incompatible_vb_layout && 813 !mgr->ve->incompatible_layout && 814 !mgr->any_user_vbs) { 815 return 0; 816 } 817 818 if (info->indexed) { 819 if (info->max_index != ~0) { 820 min_index = info->min_index + info->index_bias; 821 max_index = info->max_index + info->index_bias; 822 } else if (u_vbuf_need_minmax_index(mgr)) { 823 u_vbuf_get_minmax_index(mgr->pipe, &mgr->b.index_buffer, info, 824 &min_index, &max_index); 825 min_index += info->index_bias; 826 max_index += info->index_bias; 827 } else { 828 min_index = 0; 829 max_index = 0; 830 } 831 } else { 832 min_index = info->start; 833 max_index = info->start + info->count - 1; 834 } 835 836 /* Translate vertices with non-native layouts or formats. */ 837 if (mgr->incompatible_vb_layout || mgr->ve->incompatible_layout) { 838 u_vbuf_translate_begin(mgr, min_index, max_index); 839 } 840 841 /* Upload user buffers. */ 842 if (mgr->any_user_vbs) { 843 u_vbuf_upload_buffers(mgr, min_index, max_index, info->instance_count); 844 } 845 return U_VBUF_BUFFERS_UPDATED; 846} 847 848void u_vbuf_draw_end(struct u_vbuf *mgrb) 849{ 850 struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb; 851 852 if (mgr->fallback_ve) { 853 u_vbuf_translate_end(mgr); 854 } 855} 856