1 /************************************************************************** 2 * 3 * Copyright 2011 Marek Olk <maraeo (at) 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 /** 29 * This module uploads user buffers and translates the vertex buffers which 30 * contain incompatible vertices (i.e. not supported by the driver/hardware) 31 * into compatible ones, based on the Gallium CAPs. 32 * 33 * It does not upload index buffers. 34 * 35 * The module heavily uses bitmasks to represent per-buffer and 36 * per-vertex-element flags to avoid looping over the list of buffers just 37 * to see if there's a non-zero stride, or user buffer, or unsupported format, 38 * etc. 39 * 40 * There are 3 categories of vertex elements, which are processed separately: 41 * - per-vertex attribs (stride != 0, instance_divisor == 0) 42 * - instanced attribs (stride != 0, instance_divisor > 0) 43 * - constant attribs (stride == 0) 44 * 45 * All needed uploads and translations are performed every draw command, but 46 * only the subset of vertices needed for that draw command is uploaded or 47 * translated. (the module never translates whole buffers) 48 * 49 * 50 * The module consists of two main parts: 51 * 52 * 53 * 1) Translate (u_vbuf_translate_begin/end) 54 * 55 * This is pretty much a vertex fetch fallback. It translates vertices from 56 * one vertex buffer to another in an unused vertex buffer slot. It does 57 * whatever is needed to make the vertices readable by the hardware (changes 58 * vertex formats and aligns offsets and strides). The translate module is 59 * used here. 60 * 61 * Each of the 3 categories is translated to a separate buffer. 62 * Only the [min_index, max_index] range is translated. For instanced attribs, 63 * the range is [start_instance, start_instance+instance_count]. For constant 64 * attribs, the range is [0, 1]. 65 * 66 * 67 * 2) User buffer uploading (u_vbuf_upload_buffers) 68 * 69 * Only the [min_index, max_index] range is uploaded (just like Translate) 70 * with a single memcpy. 71 * 72 * This method works best for non-indexed draw operations or indexed draw 73 * operations where the [min_index, max_index] range is not being way bigger 74 * than the vertex count. 75 * 76 * If the range is too big (e.g. one triangle with indices {0, 1, 10000}), 77 * the per-vertex attribs are uploaded via the translate module, all packed 78 * into one vertex buffer, and the indexed draw call is turned into 79 * a non-indexed one in the process. This adds additional complexity 80 * to the translate part, but it prevents bad apps from bringing your frame 81 * rate down. 82 * 83 * 84 * If there is nothing to do, it forwards every command to the driver. 85 * The module also has its own CSO cache of vertex element states. 86 */ 87 88 #include "util/u_vbuf.h" 89 90 #include "util/u_dump.h" 91 #include "util/u_format.h" 92 #include "util/u_inlines.h" 93 #include "util/u_memory.h" 94 #include "util/u_upload_mgr.h" 95 #include "translate/translate.h" 96 #include "translate/translate_cache.h" 97 #include "cso_cache/cso_cache.h" 98 #include "cso_cache/cso_hash.h" 99 100 struct u_vbuf_elements { 101 unsigned count; 102 struct pipe_vertex_element ve[PIPE_MAX_ATTRIBS]; 103 104 unsigned src_format_size[PIPE_MAX_ATTRIBS]; 105 106 /* If (velem[i].src_format != native_format[i]), the vertex buffer 107 * referenced by the vertex element cannot be used for rendering and 108 * its vertex data must be translated to native_format[i]. */ 109 enum pipe_format native_format[PIPE_MAX_ATTRIBS]; 110 unsigned native_format_size[PIPE_MAX_ATTRIBS]; 111 112 /* Which buffers are used by the vertex element state. */ 113 uint32_t used_vb_mask; 114 /* This might mean two things: 115 * - src_format != native_format, as discussed above. 116 * - src_offset % 4 != 0 (if the caps don't allow such an offset). */ 117 uint32_t incompatible_elem_mask; /* each bit describes a corresp. attrib */ 118 /* Which buffer has at least one vertex element referencing it 119 * incompatible. */ 120 uint32_t incompatible_vb_mask_any; 121 /* Which buffer has all vertex elements referencing it incompatible. */ 122 uint32_t incompatible_vb_mask_all; 123 /* Which buffer has at least one vertex element referencing it 124 * compatible. */ 125 uint32_t compatible_vb_mask_any; 126 /* Which buffer has all vertex elements referencing it compatible. */ 127 uint32_t compatible_vb_mask_all; 128 129 /* Which buffer has at least one vertex element referencing it 130 * non-instanced. */ 131 uint32_t noninstance_vb_mask_any; 132 133 void *driver_cso; 134 }; 135 136 enum { 137 VB_VERTEX = 0, 138 VB_INSTANCE = 1, 139 VB_CONST = 2, 140 VB_NUM = 3 141 }; 142 143 struct u_vbuf { 144 struct u_vbuf_caps caps; 145 146 struct pipe_context *pipe; 147 struct translate_cache *translate_cache; 148 struct cso_cache *cso_cache; 149 struct u_upload_mgr *uploader; 150 151 /* This is what was set in set_vertex_buffers. 152 * May contain user buffers. */ 153 struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS]; 154 uint32_t enabled_vb_mask; 155 156 /* Saved vertex buffer. */ 157 unsigned aux_vertex_buffer_slot; 158 struct pipe_vertex_buffer aux_vertex_buffer_saved; 159 160 /* Vertex buffers for the driver. 161 * There are usually no user buffers. */ 162 struct pipe_vertex_buffer real_vertex_buffer[PIPE_MAX_ATTRIBS]; 163 uint32_t dirty_real_vb_mask; /* which buffers are dirty since the last 164 call of set_vertex_buffers */ 165 166 /* The index buffer. */ 167 struct pipe_index_buffer index_buffer; 168 169 /* Vertex elements. */ 170 struct u_vbuf_elements *ve, *ve_saved; 171 172 /* Vertex elements used for the translate fallback. */ 173 struct pipe_vertex_element fallback_velems[PIPE_MAX_ATTRIBS]; 174 /* If non-NULL, this is a vertex element state used for the translate 175 * fallback and therefore used for rendering too. */ 176 boolean using_translate; 177 /* The vertex buffer slot index where translated vertices have been 178 * stored in. */ 179 unsigned fallback_vbs[VB_NUM]; 180 181 /* Which buffer is a user buffer. */ 182 uint32_t user_vb_mask; /* each bit describes a corresp. buffer */ 183 /* Which buffer is incompatible (unaligned). */ 184 uint32_t incompatible_vb_mask; /* each bit describes a corresp. buffer */ 185 /* Which buffer has a non-zero stride. */ 186 uint32_t nonzero_stride_vb_mask; /* each bit describes a corresp. buffer */ 187 }; 188 189 static void * 190 u_vbuf_create_vertex_elements(struct u_vbuf *mgr, unsigned count, 191 const struct pipe_vertex_element *attribs); 192 static void u_vbuf_delete_vertex_elements(struct u_vbuf *mgr, void *cso); 193 194 static const struct { 195 enum pipe_format from, to; 196 } vbuf_format_fallbacks[] = { 197 { PIPE_FORMAT_R32_FIXED, PIPE_FORMAT_R32_FLOAT }, 198 { PIPE_FORMAT_R32G32_FIXED, PIPE_FORMAT_R32G32_FLOAT }, 199 { PIPE_FORMAT_R32G32B32_FIXED, PIPE_FORMAT_R32G32B32_FLOAT }, 200 { PIPE_FORMAT_R32G32B32A32_FIXED, PIPE_FORMAT_R32G32B32A32_FLOAT }, 201 { PIPE_FORMAT_R16_FLOAT, PIPE_FORMAT_R32_FLOAT }, 202 { PIPE_FORMAT_R16G16_FLOAT, PIPE_FORMAT_R32G32_FLOAT }, 203 { PIPE_FORMAT_R16G16B16_FLOAT, PIPE_FORMAT_R32G32B32_FLOAT }, 204 { PIPE_FORMAT_R16G16B16A16_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT }, 205 { PIPE_FORMAT_R64_FLOAT, PIPE_FORMAT_R32_FLOAT }, 206 { PIPE_FORMAT_R64G64_FLOAT, PIPE_FORMAT_R32G32_FLOAT }, 207 { PIPE_FORMAT_R64G64B64_FLOAT, PIPE_FORMAT_R32G32B32_FLOAT }, 208 { PIPE_FORMAT_R64G64B64A64_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT }, 209 { PIPE_FORMAT_R32_UNORM, PIPE_FORMAT_R32_FLOAT }, 210 { PIPE_FORMAT_R32G32_UNORM, PIPE_FORMAT_R32G32_FLOAT }, 211 { PIPE_FORMAT_R32G32B32_UNORM, PIPE_FORMAT_R32G32B32_FLOAT }, 212 { PIPE_FORMAT_R32G32B32A32_UNORM, PIPE_FORMAT_R32G32B32A32_FLOAT }, 213 { PIPE_FORMAT_R32_SNORM, PIPE_FORMAT_R32_FLOAT }, 214 { PIPE_FORMAT_R32G32_SNORM, PIPE_FORMAT_R32G32_FLOAT }, 215 { PIPE_FORMAT_R32G32B32_SNORM, PIPE_FORMAT_R32G32B32_FLOAT }, 216 { PIPE_FORMAT_R32G32B32A32_SNORM, PIPE_FORMAT_R32G32B32A32_FLOAT }, 217 { PIPE_FORMAT_R32_USCALED, PIPE_FORMAT_R32_FLOAT }, 218 { PIPE_FORMAT_R32G32_USCALED, PIPE_FORMAT_R32G32_FLOAT }, 219 { PIPE_FORMAT_R32G32B32_USCALED, PIPE_FORMAT_R32G32B32_FLOAT }, 220 { PIPE_FORMAT_R32G32B32A32_USCALED, PIPE_FORMAT_R32G32B32A32_FLOAT }, 221 { PIPE_FORMAT_R32_SSCALED, PIPE_FORMAT_R32_FLOAT }, 222 { PIPE_FORMAT_R32G32_SSCALED, PIPE_FORMAT_R32G32_FLOAT }, 223 { PIPE_FORMAT_R32G32B32_SSCALED, PIPE_FORMAT_R32G32B32_FLOAT }, 224 { PIPE_FORMAT_R32G32B32A32_SSCALED, PIPE_FORMAT_R32G32B32A32_FLOAT }, 225 { PIPE_FORMAT_R16_UNORM, PIPE_FORMAT_R32_FLOAT }, 226 { PIPE_FORMAT_R16G16_UNORM, PIPE_FORMAT_R32G32_FLOAT }, 227 { PIPE_FORMAT_R16G16B16_UNORM, PIPE_FORMAT_R32G32B32_FLOAT }, 228 { PIPE_FORMAT_R16G16B16A16_UNORM, PIPE_FORMAT_R32G32B32A32_FLOAT }, 229 { PIPE_FORMAT_R16_SNORM, PIPE_FORMAT_R32_FLOAT }, 230 { PIPE_FORMAT_R16G16_SNORM, PIPE_FORMAT_R32G32_FLOAT }, 231 { PIPE_FORMAT_R16G16B16_SNORM, PIPE_FORMAT_R32G32B32_FLOAT }, 232 { PIPE_FORMAT_R16G16B16A16_SNORM, PIPE_FORMAT_R32G32B32A32_FLOAT }, 233 { PIPE_FORMAT_R16_USCALED, PIPE_FORMAT_R32_FLOAT }, 234 { PIPE_FORMAT_R16G16_USCALED, PIPE_FORMAT_R32G32_FLOAT }, 235 { PIPE_FORMAT_R16G16B16_USCALED, PIPE_FORMAT_R32G32B32_FLOAT }, 236 { PIPE_FORMAT_R16G16B16A16_USCALED, PIPE_FORMAT_R32G32B32A32_FLOAT }, 237 { PIPE_FORMAT_R16_SSCALED, PIPE_FORMAT_R32_FLOAT }, 238 { PIPE_FORMAT_R16G16_SSCALED, PIPE_FORMAT_R32G32_FLOAT }, 239 { PIPE_FORMAT_R16G16B16_SSCALED, PIPE_FORMAT_R32G32B32_FLOAT }, 240 { PIPE_FORMAT_R16G16B16A16_SSCALED, PIPE_FORMAT_R32G32B32A32_FLOAT }, 241 { PIPE_FORMAT_R8_UNORM, PIPE_FORMAT_R32_FLOAT }, 242 { PIPE_FORMAT_R8G8_UNORM, PIPE_FORMAT_R32G32_FLOAT }, 243 { PIPE_FORMAT_R8G8B8_UNORM, PIPE_FORMAT_R32G32B32_FLOAT }, 244 { PIPE_FORMAT_R8G8B8A8_UNORM, PIPE_FORMAT_R32G32B32A32_FLOAT }, 245 { PIPE_FORMAT_R8_SNORM, PIPE_FORMAT_R32_FLOAT }, 246 { PIPE_FORMAT_R8G8_SNORM, PIPE_FORMAT_R32G32_FLOAT }, 247 { PIPE_FORMAT_R8G8B8_SNORM, PIPE_FORMAT_R32G32B32_FLOAT }, 248 { PIPE_FORMAT_R8G8B8A8_SNORM, PIPE_FORMAT_R32G32B32A32_FLOAT }, 249 { PIPE_FORMAT_R8_USCALED, PIPE_FORMAT_R32_FLOAT }, 250 { PIPE_FORMAT_R8G8_USCALED, PIPE_FORMAT_R32G32_FLOAT }, 251 { PIPE_FORMAT_R8G8B8_USCALED, PIPE_FORMAT_R32G32B32_FLOAT }, 252 { PIPE_FORMAT_R8G8B8A8_USCALED, PIPE_FORMAT_R32G32B32A32_FLOAT }, 253 { PIPE_FORMAT_R8_SSCALED, PIPE_FORMAT_R32_FLOAT }, 254 { PIPE_FORMAT_R8G8_SSCALED, PIPE_FORMAT_R32G32_FLOAT }, 255 { PIPE_FORMAT_R8G8B8_SSCALED, PIPE_FORMAT_R32G32B32_FLOAT }, 256 { PIPE_FORMAT_R8G8B8A8_SSCALED, PIPE_FORMAT_R32G32B32A32_FLOAT }, 257 }; 258 259 boolean u_vbuf_get_caps(struct pipe_screen *screen, struct u_vbuf_caps *caps) 260 { 261 unsigned i; 262 boolean fallback = FALSE; 263 264 /* I'd rather have a bitfield of which formats are supported and a static 265 * table of the translations indexed by format, but since we don't have C99 266 * we can't easily make a sparsely-populated table indexed by format. So, 267 * we construct the sparse table here. 268 */ 269 for (i = 0; i < PIPE_FORMAT_COUNT; i++) 270 caps->format_translation[i] = i; 271 272 for (i = 0; i < ARRAY_SIZE(vbuf_format_fallbacks); i++) { 273 enum pipe_format format = vbuf_format_fallbacks[i].from; 274 275 if (!screen->is_format_supported(screen, format, PIPE_BUFFER, 0, 276 PIPE_BIND_VERTEX_BUFFER)) { 277 caps->format_translation[format] = vbuf_format_fallbacks[i].to; 278 fallback = TRUE; 279 } 280 } 281 282 caps->buffer_offset_unaligned = 283 !screen->get_param(screen, 284 PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY); 285 caps->buffer_stride_unaligned = 286 !screen->get_param(screen, 287 PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY); 288 caps->velem_src_offset_unaligned = 289 !screen->get_param(screen, 290 PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY); 291 caps->user_vertex_buffers = 292 screen->get_param(screen, PIPE_CAP_USER_VERTEX_BUFFERS); 293 294 if (!caps->buffer_offset_unaligned || 295 !caps->buffer_stride_unaligned || 296 !caps->velem_src_offset_unaligned || 297 !caps->user_vertex_buffers) { 298 fallback = TRUE; 299 } 300 301 return fallback; 302 } 303 304 struct u_vbuf * 305 u_vbuf_create(struct pipe_context *pipe, 306 struct u_vbuf_caps *caps, unsigned aux_vertex_buffer_index) 307 { 308 struct u_vbuf *mgr = CALLOC_STRUCT(u_vbuf); 309 310 mgr->caps = *caps; 311 mgr->aux_vertex_buffer_slot = aux_vertex_buffer_index; 312 mgr->pipe = pipe; 313 mgr->cso_cache = cso_cache_create(); 314 mgr->translate_cache = translate_cache_create(); 315 memset(mgr->fallback_vbs, ~0, sizeof(mgr->fallback_vbs)); 316 317 mgr->uploader = u_upload_create(pipe, 1024 * 1024, 318 PIPE_BIND_VERTEX_BUFFER, 319 PIPE_USAGE_STREAM); 320 321 return mgr; 322 } 323 324 /* u_vbuf uses its own caching for vertex elements, because it needs to keep 325 * its own preprocessed state per vertex element CSO. */ 326 static struct u_vbuf_elements * 327 u_vbuf_set_vertex_elements_internal(struct u_vbuf *mgr, unsigned count, 328 const struct pipe_vertex_element *states) 329 { 330 struct pipe_context *pipe = mgr->pipe; 331 unsigned key_size, hash_key; 332 struct cso_hash_iter iter; 333 struct u_vbuf_elements *ve; 334 struct cso_velems_state velems_state; 335 336 /* need to include the count into the stored state data too. */ 337 key_size = sizeof(struct pipe_vertex_element) * count + sizeof(unsigned); 338 velems_state.count = count; 339 memcpy(velems_state.velems, states, 340 sizeof(struct pipe_vertex_element) * count); 341 hash_key = cso_construct_key((void*)&velems_state, key_size); 342 iter = cso_find_state_template(mgr->cso_cache, hash_key, CSO_VELEMENTS, 343 (void*)&velems_state, key_size); 344 345 if (cso_hash_iter_is_null(iter)) { 346 struct cso_velements *cso = MALLOC_STRUCT(cso_velements); 347 memcpy(&cso->state, &velems_state, key_size); 348 cso->data = u_vbuf_create_vertex_elements(mgr, count, states); 349 cso->delete_state = (cso_state_callback)u_vbuf_delete_vertex_elements; 350 cso->context = (void*)mgr; 351 352 iter = cso_insert_state(mgr->cso_cache, hash_key, CSO_VELEMENTS, cso); 353 ve = cso->data; 354 } else { 355 ve = ((struct cso_velements *)cso_hash_iter_data(iter))->data; 356 } 357 358 assert(ve); 359 360 if (ve != mgr->ve) 361 pipe->bind_vertex_elements_state(pipe, ve->driver_cso); 362 363 return ve; 364 } 365 366 void u_vbuf_set_vertex_elements(struct u_vbuf *mgr, unsigned count, 367 const struct pipe_vertex_element *states) 368 { 369 mgr->ve = u_vbuf_set_vertex_elements_internal(mgr, count, states); 370 } 371 372 void u_vbuf_destroy(struct u_vbuf *mgr) 373 { 374 struct pipe_screen *screen = mgr->pipe->screen; 375 unsigned i; 376 unsigned num_vb = screen->get_shader_param(screen, PIPE_SHADER_VERTEX, 377 PIPE_SHADER_CAP_MAX_INPUTS); 378 379 mgr->pipe->set_index_buffer(mgr->pipe, NULL); 380 pipe_resource_reference(&mgr->index_buffer.buffer, NULL); 381 382 mgr->pipe->set_vertex_buffers(mgr->pipe, 0, num_vb, NULL); 383 384 for (i = 0; i < PIPE_MAX_ATTRIBS; i++) { 385 pipe_resource_reference(&mgr->vertex_buffer[i].buffer, NULL); 386 } 387 for (i = 0; i < PIPE_MAX_ATTRIBS; i++) { 388 pipe_resource_reference(&mgr->real_vertex_buffer[i].buffer, NULL); 389 } 390 pipe_resource_reference(&mgr->aux_vertex_buffer_saved.buffer, NULL); 391 392 translate_cache_destroy(mgr->translate_cache); 393 u_upload_destroy(mgr->uploader); 394 cso_cache_delete(mgr->cso_cache); 395 FREE(mgr); 396 } 397 398 static enum pipe_error 399 u_vbuf_translate_buffers(struct u_vbuf *mgr, struct translate_key *key, 400 unsigned vb_mask, unsigned out_vb, 401 int start_vertex, unsigned num_vertices, 402 int start_index, unsigned num_indices, int min_index, 403 boolean unroll_indices) 404 { 405 struct translate *tr; 406 struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS] = {0}; 407 struct pipe_resource *out_buffer = NULL; 408 uint8_t *out_map; 409 unsigned out_offset, mask; 410 411 /* Get a translate object. */ 412 tr = translate_cache_find(mgr->translate_cache, key); 413 414 /* Map buffers we want to translate. */ 415 mask = vb_mask; 416 while (mask) { 417 struct pipe_vertex_buffer *vb; 418 unsigned offset; 419 uint8_t *map; 420 unsigned i = u_bit_scan(&mask); 421 422 vb = &mgr->vertex_buffer[i]; 423 offset = vb->buffer_offset + vb->stride * start_vertex; 424 425 if (vb->user_buffer) { 426 map = (uint8_t*)vb->user_buffer + offset; 427 } else { 428 unsigned size = vb->stride ? num_vertices * vb->stride 429 : sizeof(double)*4; 430 431 if (offset+size > vb->buffer->width0) { 432 size = vb->buffer->width0 - offset; 433 } 434 435 map = pipe_buffer_map_range(mgr->pipe, vb->buffer, offset, size, 436 PIPE_TRANSFER_READ, &vb_transfer[i]); 437 } 438 439 /* Subtract min_index so that indexing with the index buffer works. */ 440 if (unroll_indices) { 441 map -= (ptrdiff_t)vb->stride * min_index; 442 } 443 444 tr->set_buffer(tr, i, map, vb->stride, ~0); 445 } 446 447 /* Translate. */ 448 if (unroll_indices) { 449 struct pipe_index_buffer *ib = &mgr->index_buffer; 450 struct pipe_transfer *transfer = NULL; 451 unsigned offset = ib->offset + start_index * ib->index_size; 452 uint8_t *map; 453 454 assert((ib->buffer || ib->user_buffer) && ib->index_size); 455 456 /* Create and map the output buffer. */ 457 u_upload_alloc(mgr->uploader, 0, 458 key->output_stride * num_indices, 4, 459 &out_offset, &out_buffer, 460 (void**)&out_map); 461 if (!out_buffer) 462 return PIPE_ERROR_OUT_OF_MEMORY; 463 464 if (ib->user_buffer) { 465 map = (uint8_t*)ib->user_buffer + offset; 466 } else { 467 map = pipe_buffer_map_range(mgr->pipe, ib->buffer, offset, 468 num_indices * ib->index_size, 469 PIPE_TRANSFER_READ, &transfer); 470 } 471 472 switch (ib->index_size) { 473 case 4: 474 tr->run_elts(tr, (unsigned*)map, num_indices, 0, 0, out_map); 475 break; 476 case 2: 477 tr->run_elts16(tr, (uint16_t*)map, num_indices, 0, 0, out_map); 478 break; 479 case 1: 480 tr->run_elts8(tr, map, num_indices, 0, 0, out_map); 481 break; 482 } 483 484 if (transfer) { 485 pipe_buffer_unmap(mgr->pipe, transfer); 486 } 487 } else { 488 /* Create and map the output buffer. */ 489 u_upload_alloc(mgr->uploader, 490 key->output_stride * start_vertex, 491 key->output_stride * num_vertices, 4, 492 &out_offset, &out_buffer, 493 (void**)&out_map); 494 if (!out_buffer) 495 return PIPE_ERROR_OUT_OF_MEMORY; 496 497 out_offset -= key->output_stride * start_vertex; 498 499 tr->run(tr, 0, num_vertices, 0, 0, out_map); 500 } 501 502 /* Unmap all buffers. */ 503 mask = vb_mask; 504 while (mask) { 505 unsigned i = u_bit_scan(&mask); 506 507 if (vb_transfer[i]) { 508 pipe_buffer_unmap(mgr->pipe, vb_transfer[i]); 509 } 510 } 511 512 /* Setup the new vertex buffer. */ 513 mgr->real_vertex_buffer[out_vb].buffer_offset = out_offset; 514 mgr->real_vertex_buffer[out_vb].stride = key->output_stride; 515 516 /* Move the buffer reference. */ 517 pipe_resource_reference( 518 &mgr->real_vertex_buffer[out_vb].buffer, NULL); 519 mgr->real_vertex_buffer[out_vb].buffer = out_buffer; 520 521 return PIPE_OK; 522 } 523 524 static boolean 525 u_vbuf_translate_find_free_vb_slots(struct u_vbuf *mgr, 526 unsigned mask[VB_NUM]) 527 { 528 unsigned type; 529 unsigned fallback_vbs[VB_NUM]; 530 /* Set the bit for each buffer which is incompatible, or isn't set. */ 531 uint32_t unused_vb_mask = 532 mgr->ve->incompatible_vb_mask_all | mgr->incompatible_vb_mask | 533 ~mgr->enabled_vb_mask; 534 535 memset(fallback_vbs, ~0, sizeof(fallback_vbs)); 536 537 /* Find free slots for each type if needed. */ 538 for (type = 0; type < VB_NUM; type++) { 539 if (mask[type]) { 540 uint32_t index; 541 542 if (!unused_vb_mask) { 543 return FALSE; 544 } 545 546 index = ffs(unused_vb_mask) - 1; 547 fallback_vbs[type] = index; 548 unused_vb_mask &= ~(1 << index); 549 /*printf("found slot=%i for type=%i\n", index, type);*/ 550 } 551 } 552 553 for (type = 0; type < VB_NUM; type++) { 554 if (mask[type]) { 555 mgr->dirty_real_vb_mask |= 1 << fallback_vbs[type]; 556 } 557 } 558 559 memcpy(mgr->fallback_vbs, fallback_vbs, sizeof(fallback_vbs)); 560 return TRUE; 561 } 562 563 static boolean 564 u_vbuf_translate_begin(struct u_vbuf *mgr, 565 int start_vertex, unsigned num_vertices, 566 int start_instance, unsigned num_instances, 567 int start_index, unsigned num_indices, int min_index, 568 boolean unroll_indices) 569 { 570 unsigned mask[VB_NUM] = {0}; 571 struct translate_key key[VB_NUM]; 572 unsigned elem_index[VB_NUM][PIPE_MAX_ATTRIBS]; /* ... into key.elements */ 573 unsigned i, type; 574 unsigned incompatible_vb_mask = mgr->incompatible_vb_mask & 575 mgr->ve->used_vb_mask; 576 577 int start[VB_NUM] = { 578 start_vertex, /* VERTEX */ 579 start_instance, /* INSTANCE */ 580 0 /* CONST */ 581 }; 582 583 unsigned num[VB_NUM] = { 584 num_vertices, /* VERTEX */ 585 num_instances, /* INSTANCE */ 586 1 /* CONST */ 587 }; 588 589 memset(key, 0, sizeof(key)); 590 memset(elem_index, ~0, sizeof(elem_index)); 591 592 /* See if there are vertex attribs of each type to translate and 593 * which ones. */ 594 for (i = 0; i < mgr->ve->count; i++) { 595 unsigned vb_index = mgr->ve->ve[i].vertex_buffer_index; 596 597 if (!mgr->vertex_buffer[vb_index].stride) { 598 if (!(mgr->ve->incompatible_elem_mask & (1 << i)) && 599 !(incompatible_vb_mask & (1 << vb_index))) { 600 continue; 601 } 602 mask[VB_CONST] |= 1 << vb_index; 603 } else if (mgr->ve->ve[i].instance_divisor) { 604 if (!(mgr->ve->incompatible_elem_mask & (1 << i)) && 605 !(incompatible_vb_mask & (1 << vb_index))) { 606 continue; 607 } 608 mask[VB_INSTANCE] |= 1 << vb_index; 609 } else { 610 if (!unroll_indices && 611 !(mgr->ve->incompatible_elem_mask & (1 << i)) && 612 !(incompatible_vb_mask & (1 << vb_index))) { 613 continue; 614 } 615 mask[VB_VERTEX] |= 1 << vb_index; 616 } 617 } 618 619 assert(mask[VB_VERTEX] || mask[VB_INSTANCE] || mask[VB_CONST]); 620 621 /* Find free vertex buffer slots. */ 622 if (!u_vbuf_translate_find_free_vb_slots(mgr, mask)) { 623 return FALSE; 624 } 625 626 /* Initialize the translate keys. */ 627 for (i = 0; i < mgr->ve->count; i++) { 628 struct translate_key *k; 629 struct translate_element *te; 630 enum pipe_format output_format = mgr->ve->native_format[i]; 631 unsigned bit, vb_index = mgr->ve->ve[i].vertex_buffer_index; 632 bit = 1 << vb_index; 633 634 if (!(mgr->ve->incompatible_elem_mask & (1 << i)) && 635 !(incompatible_vb_mask & (1 << vb_index)) && 636 (!unroll_indices || !(mask[VB_VERTEX] & bit))) { 637 continue; 638 } 639 640 /* Set type to what we will translate. 641 * Whether vertex, instance, or constant attribs. */ 642 for (type = 0; type < VB_NUM; type++) { 643 if (mask[type] & bit) { 644 break; 645 } 646 } 647 assert(type < VB_NUM); 648 if (mgr->ve->ve[i].src_format != output_format) 649 assert(translate_is_output_format_supported(output_format)); 650 /*printf("velem=%i type=%i\n", i, type);*/ 651 652 /* Add the vertex element. */ 653 k = &key[type]; 654 elem_index[type][i] = k->nr_elements; 655 656 te = &k->element[k->nr_elements]; 657 te->type = TRANSLATE_ELEMENT_NORMAL; 658 te->instance_divisor = 0; 659 te->input_buffer = vb_index; 660 te->input_format = mgr->ve->ve[i].src_format; 661 te->input_offset = mgr->ve->ve[i].src_offset; 662 te->output_format = output_format; 663 te->output_offset = k->output_stride; 664 665 k->output_stride += mgr->ve->native_format_size[i]; 666 k->nr_elements++; 667 } 668 669 /* Translate buffers. */ 670 for (type = 0; type < VB_NUM; type++) { 671 if (key[type].nr_elements) { 672 enum pipe_error err; 673 err = u_vbuf_translate_buffers(mgr, &key[type], mask[type], 674 mgr->fallback_vbs[type], 675 start[type], num[type], 676 start_index, num_indices, min_index, 677 unroll_indices && type == VB_VERTEX); 678 if (err != PIPE_OK) 679 return FALSE; 680 681 /* Fixup the stride for constant attribs. */ 682 if (type == VB_CONST) { 683 mgr->real_vertex_buffer[mgr->fallback_vbs[VB_CONST]].stride = 0; 684 } 685 } 686 } 687 688 /* Setup new vertex elements. */ 689 for (i = 0; i < mgr->ve->count; i++) { 690 for (type = 0; type < VB_NUM; type++) { 691 if (elem_index[type][i] < key[type].nr_elements) { 692 struct translate_element *te = &key[type].element[elem_index[type][i]]; 693 mgr->fallback_velems[i].instance_divisor = mgr->ve->ve[i].instance_divisor; 694 mgr->fallback_velems[i].src_format = te->output_format; 695 mgr->fallback_velems[i].src_offset = te->output_offset; 696 mgr->fallback_velems[i].vertex_buffer_index = mgr->fallback_vbs[type]; 697 698 /* elem_index[type][i] can only be set for one type. */ 699 assert(type > VB_INSTANCE || elem_index[type+1][i] == ~0u); 700 assert(type > VB_VERTEX || elem_index[type+2][i] == ~0u); 701 break; 702 } 703 } 704 /* No translating, just copy the original vertex element over. */ 705 if (type == VB_NUM) { 706 memcpy(&mgr->fallback_velems[i], &mgr->ve->ve[i], 707 sizeof(struct pipe_vertex_element)); 708 } 709 } 710 711 u_vbuf_set_vertex_elements_internal(mgr, mgr->ve->count, 712 mgr->fallback_velems); 713 mgr->using_translate = TRUE; 714 return TRUE; 715 } 716 717 static void u_vbuf_translate_end(struct u_vbuf *mgr) 718 { 719 unsigned i; 720 721 /* Restore vertex elements. */ 722 mgr->pipe->bind_vertex_elements_state(mgr->pipe, mgr->ve->driver_cso); 723 mgr->using_translate = FALSE; 724 725 /* Unreference the now-unused VBOs. */ 726 for (i = 0; i < VB_NUM; i++) { 727 unsigned vb = mgr->fallback_vbs[i]; 728 if (vb != ~0u) { 729 pipe_resource_reference(&mgr->real_vertex_buffer[vb].buffer, NULL); 730 mgr->fallback_vbs[i] = ~0; 731 732 /* This will cause the buffer to be unbound in the driver later. */ 733 mgr->dirty_real_vb_mask |= 1 << vb; 734 } 735 } 736 } 737 738 static void * 739 u_vbuf_create_vertex_elements(struct u_vbuf *mgr, unsigned count, 740 const struct pipe_vertex_element *attribs) 741 { 742 struct pipe_context *pipe = mgr->pipe; 743 unsigned i; 744 struct pipe_vertex_element driver_attribs[PIPE_MAX_ATTRIBS]; 745 struct u_vbuf_elements *ve = CALLOC_STRUCT(u_vbuf_elements); 746 uint32_t used_buffers = 0; 747 748 ve->count = count; 749 750 memcpy(ve->ve, attribs, sizeof(struct pipe_vertex_element) * count); 751 memcpy(driver_attribs, attribs, sizeof(struct pipe_vertex_element) * count); 752 753 /* Set the best native format in case the original format is not 754 * supported. */ 755 for (i = 0; i < count; i++) { 756 enum pipe_format format = ve->ve[i].src_format; 757 758 ve->src_format_size[i] = util_format_get_blocksize(format); 759 760 used_buffers |= 1 << ve->ve[i].vertex_buffer_index; 761 762 if (!ve->ve[i].instance_divisor) { 763 ve->noninstance_vb_mask_any |= 1 << ve->ve[i].vertex_buffer_index; 764 } 765 766 format = mgr->caps.format_translation[format]; 767 768 driver_attribs[i].src_format = format; 769 ve->native_format[i] = format; 770 ve->native_format_size[i] = 771 util_format_get_blocksize(ve->native_format[i]); 772 773 if (ve->ve[i].src_format != format || 774 (!mgr->caps.velem_src_offset_unaligned && 775 ve->ve[i].src_offset % 4 != 0)) { 776 ve->incompatible_elem_mask |= 1 << i; 777 ve->incompatible_vb_mask_any |= 1 << ve->ve[i].vertex_buffer_index; 778 } else { 779 ve->compatible_vb_mask_any |= 1 << ve->ve[i].vertex_buffer_index; 780 } 781 } 782 783 ve->used_vb_mask = used_buffers; 784 ve->compatible_vb_mask_all = ~ve->incompatible_vb_mask_any & used_buffers; 785 ve->incompatible_vb_mask_all = ~ve->compatible_vb_mask_any & used_buffers; 786 787 /* Align the formats and offsets to the size of DWORD if needed. */ 788 if (!mgr->caps.velem_src_offset_unaligned) { 789 for (i = 0; i < count; i++) { 790 ve->native_format_size[i] = align(ve->native_format_size[i], 4); 791 driver_attribs[i].src_offset = align(ve->ve[i].src_offset, 4); 792 } 793 } 794 795 ve->driver_cso = 796 pipe->create_vertex_elements_state(pipe, count, driver_attribs); 797 return ve; 798 } 799 800 static void u_vbuf_delete_vertex_elements(struct u_vbuf *mgr, void *cso) 801 { 802 struct pipe_context *pipe = mgr->pipe; 803 struct u_vbuf_elements *ve = cso; 804 805 pipe->delete_vertex_elements_state(pipe, ve->driver_cso); 806 FREE(ve); 807 } 808 809 void u_vbuf_set_vertex_buffers(struct u_vbuf *mgr, 810 unsigned start_slot, unsigned count, 811 const struct pipe_vertex_buffer *bufs) 812 { 813 unsigned i; 814 /* which buffers are enabled */ 815 uint32_t enabled_vb_mask = 0; 816 /* which buffers are in user memory */ 817 uint32_t user_vb_mask = 0; 818 /* which buffers are incompatible with the driver */ 819 uint32_t incompatible_vb_mask = 0; 820 /* which buffers have a non-zero stride */ 821 uint32_t nonzero_stride_vb_mask = 0; 822 uint32_t mask = ~(((1ull << count) - 1) << start_slot); 823 824 /* Zero out the bits we are going to rewrite completely. */ 825 mgr->user_vb_mask &= mask; 826 mgr->incompatible_vb_mask &= mask; 827 mgr->nonzero_stride_vb_mask &= mask; 828 mgr->enabled_vb_mask &= mask; 829 830 if (!bufs) { 831 struct pipe_context *pipe = mgr->pipe; 832 /* Unbind. */ 833 mgr->dirty_real_vb_mask &= mask; 834 835 for (i = 0; i < count; i++) { 836 unsigned dst_index = start_slot + i; 837 838 pipe_resource_reference(&mgr->vertex_buffer[dst_index].buffer, NULL); 839 pipe_resource_reference(&mgr->real_vertex_buffer[dst_index].buffer, 840 NULL); 841 } 842 843 pipe->set_vertex_buffers(pipe, start_slot, count, NULL); 844 return; 845 } 846 847 for (i = 0; i < count; i++) { 848 unsigned dst_index = start_slot + i; 849 const struct pipe_vertex_buffer *vb = &bufs[i]; 850 struct pipe_vertex_buffer *orig_vb = &mgr->vertex_buffer[dst_index]; 851 struct pipe_vertex_buffer *real_vb = &mgr->real_vertex_buffer[dst_index]; 852 853 if (!vb->buffer && !vb->user_buffer) { 854 pipe_resource_reference(&orig_vb->buffer, NULL); 855 pipe_resource_reference(&real_vb->buffer, NULL); 856 real_vb->user_buffer = NULL; 857 continue; 858 } 859 860 pipe_resource_reference(&orig_vb->buffer, vb->buffer); 861 orig_vb->user_buffer = vb->user_buffer; 862 863 real_vb->buffer_offset = orig_vb->buffer_offset = vb->buffer_offset; 864 real_vb->stride = orig_vb->stride = vb->stride; 865 866 if (vb->stride) { 867 nonzero_stride_vb_mask |= 1 << dst_index; 868 } 869 enabled_vb_mask |= 1 << dst_index; 870 871 if ((!mgr->caps.buffer_offset_unaligned && vb->buffer_offset % 4 != 0) || 872 (!mgr->caps.buffer_stride_unaligned && vb->stride % 4 != 0)) { 873 incompatible_vb_mask |= 1 << dst_index; 874 pipe_resource_reference(&real_vb->buffer, NULL); 875 continue; 876 } 877 878 if (!mgr->caps.user_vertex_buffers && vb->user_buffer) { 879 user_vb_mask |= 1 << dst_index; 880 pipe_resource_reference(&real_vb->buffer, NULL); 881 continue; 882 } 883 884 pipe_resource_reference(&real_vb->buffer, vb->buffer); 885 real_vb->user_buffer = vb->user_buffer; 886 } 887 888 mgr->user_vb_mask |= user_vb_mask; 889 mgr->incompatible_vb_mask |= incompatible_vb_mask; 890 mgr->nonzero_stride_vb_mask |= nonzero_stride_vb_mask; 891 mgr->enabled_vb_mask |= enabled_vb_mask; 892 893 /* All changed buffers are marked as dirty, even the NULL ones, 894 * which will cause the NULL buffers to be unbound in the driver later. */ 895 mgr->dirty_real_vb_mask |= ~mask; 896 } 897 898 void u_vbuf_set_index_buffer(struct u_vbuf *mgr, 899 const struct pipe_index_buffer *ib) 900 { 901 struct pipe_context *pipe = mgr->pipe; 902 903 if (ib) { 904 assert(ib->offset % ib->index_size == 0); 905 pipe_resource_reference(&mgr->index_buffer.buffer, ib->buffer); 906 memcpy(&mgr->index_buffer, ib, sizeof(*ib)); 907 } else { 908 pipe_resource_reference(&mgr->index_buffer.buffer, NULL); 909 } 910 911 pipe->set_index_buffer(pipe, ib); 912 } 913 914 static enum pipe_error 915 u_vbuf_upload_buffers(struct u_vbuf *mgr, 916 int start_vertex, unsigned num_vertices, 917 int start_instance, unsigned num_instances) 918 { 919 unsigned i; 920 unsigned nr_velems = mgr->ve->count; 921 struct pipe_vertex_element *velems = 922 mgr->using_translate ? mgr->fallback_velems : mgr->ve->ve; 923 unsigned start_offset[PIPE_MAX_ATTRIBS]; 924 unsigned end_offset[PIPE_MAX_ATTRIBS]; 925 uint32_t buffer_mask = 0; 926 927 /* Determine how much data needs to be uploaded. */ 928 for (i = 0; i < nr_velems; i++) { 929 struct pipe_vertex_element *velem = &velems[i]; 930 unsigned index = velem->vertex_buffer_index; 931 struct pipe_vertex_buffer *vb = &mgr->vertex_buffer[index]; 932 unsigned instance_div, first, size, index_bit; 933 934 /* Skip the buffers generated by translate. */ 935 if (index == mgr->fallback_vbs[VB_VERTEX] || 936 index == mgr->fallback_vbs[VB_INSTANCE] || 937 index == mgr->fallback_vbs[VB_CONST]) { 938 continue; 939 } 940 941 if (!vb->user_buffer) { 942 continue; 943 } 944 945 instance_div = velem->instance_divisor; 946 first = vb->buffer_offset + velem->src_offset; 947 948 if (!vb->stride) { 949 /* Constant attrib. */ 950 size = mgr->ve->src_format_size[i]; 951 } else if (instance_div) { 952 /* Per-instance attrib. */ 953 unsigned count = (num_instances + instance_div - 1) / instance_div; 954 first += vb->stride * start_instance; 955 size = vb->stride * (count - 1) + mgr->ve->src_format_size[i]; 956 } else { 957 /* Per-vertex attrib. */ 958 first += vb->stride * start_vertex; 959 size = vb->stride * (num_vertices - 1) + mgr->ve->src_format_size[i]; 960 } 961 962 index_bit = 1 << index; 963 964 /* Update offsets. */ 965 if (!(buffer_mask & index_bit)) { 966 start_offset[index] = first; 967 end_offset[index] = first + size; 968 } else { 969 if (first < start_offset[index]) 970 start_offset[index] = first; 971 if (first + size > end_offset[index]) 972 end_offset[index] = first + size; 973 } 974 975 buffer_mask |= index_bit; 976 } 977 978 /* Upload buffers. */ 979 while (buffer_mask) { 980 unsigned start, end; 981 struct pipe_vertex_buffer *real_vb; 982 const uint8_t *ptr; 983 984 i = u_bit_scan(&buffer_mask); 985 986 start = start_offset[i]; 987 end = end_offset[i]; 988 assert(start < end); 989 990 real_vb = &mgr->real_vertex_buffer[i]; 991 ptr = mgr->vertex_buffer[i].user_buffer; 992 993 u_upload_data(mgr->uploader, start, end - start, 4, ptr + start, 994 &real_vb->buffer_offset, &real_vb->buffer); 995 if (!real_vb->buffer) 996 return PIPE_ERROR_OUT_OF_MEMORY; 997 998 real_vb->buffer_offset -= start; 999 } 1000 1001 return PIPE_OK; 1002 } 1003 1004 static boolean u_vbuf_need_minmax_index(const struct u_vbuf *mgr) 1005 { 1006 /* See if there are any per-vertex attribs which will be uploaded or 1007 * translated. Use bitmasks to get the info instead of looping over vertex 1008 * elements. */ 1009 return (mgr->ve->used_vb_mask & 1010 ((mgr->user_vb_mask | 1011 mgr->incompatible_vb_mask | 1012 mgr->ve->incompatible_vb_mask_any) & 1013 mgr->ve->noninstance_vb_mask_any & 1014 mgr->nonzero_stride_vb_mask)) != 0; 1015 } 1016 1017 static boolean u_vbuf_mapping_vertex_buffer_blocks(const struct u_vbuf *mgr) 1018 { 1019 /* Return true if there are hw buffers which don't need to be translated. 1020 * 1021 * We could query whether each buffer is busy, but that would 1022 * be way more costly than this. */ 1023 return (mgr->ve->used_vb_mask & 1024 (~mgr->user_vb_mask & 1025 ~mgr->incompatible_vb_mask & 1026 mgr->ve->compatible_vb_mask_all & 1027 mgr->ve->noninstance_vb_mask_any & 1028 mgr->nonzero_stride_vb_mask)) != 0; 1029 } 1030 1031 static void u_vbuf_get_minmax_index(struct pipe_context *pipe, 1032 struct pipe_index_buffer *ib, 1033 boolean primitive_restart, 1034 unsigned restart_index, 1035 unsigned start, unsigned count, 1036 int *out_min_index, 1037 int *out_max_index) 1038 { 1039 struct pipe_transfer *transfer = NULL; 1040 const void *indices; 1041 unsigned i; 1042 1043 if (ib->user_buffer) { 1044 indices = (uint8_t*)ib->user_buffer + 1045 ib->offset + start * ib->index_size; 1046 } else { 1047 indices = pipe_buffer_map_range(pipe, ib->buffer, 1048 ib->offset + start * ib->index_size, 1049 count * ib->index_size, 1050 PIPE_TRANSFER_READ, &transfer); 1051 } 1052 1053 switch (ib->index_size) { 1054 case 4: { 1055 const unsigned *ui_indices = (const unsigned*)indices; 1056 unsigned max_ui = 0; 1057 unsigned min_ui = ~0U; 1058 if (primitive_restart) { 1059 for (i = 0; i < count; i++) { 1060 if (ui_indices[i] != restart_index) { 1061 if (ui_indices[i] > max_ui) max_ui = ui_indices[i]; 1062 if (ui_indices[i] < min_ui) min_ui = ui_indices[i]; 1063 } 1064 } 1065 } 1066 else { 1067 for (i = 0; i < count; i++) { 1068 if (ui_indices[i] > max_ui) max_ui = ui_indices[i]; 1069 if (ui_indices[i] < min_ui) min_ui = ui_indices[i]; 1070 } 1071 } 1072 *out_min_index = min_ui; 1073 *out_max_index = max_ui; 1074 break; 1075 } 1076 case 2: { 1077 const unsigned short *us_indices = (const unsigned short*)indices; 1078 unsigned max_us = 0; 1079 unsigned min_us = ~0U; 1080 if (primitive_restart) { 1081 for (i = 0; i < count; i++) { 1082 if (us_indices[i] != restart_index) { 1083 if (us_indices[i] > max_us) max_us = us_indices[i]; 1084 if (us_indices[i] < min_us) min_us = us_indices[i]; 1085 } 1086 } 1087 } 1088 else { 1089 for (i = 0; i < count; i++) { 1090 if (us_indices[i] > max_us) max_us = us_indices[i]; 1091 if (us_indices[i] < min_us) min_us = us_indices[i]; 1092 } 1093 } 1094 *out_min_index = min_us; 1095 *out_max_index = max_us; 1096 break; 1097 } 1098 case 1: { 1099 const unsigned char *ub_indices = (const unsigned char*)indices; 1100 unsigned max_ub = 0; 1101 unsigned min_ub = ~0U; 1102 if (primitive_restart) { 1103 for (i = 0; i < count; i++) { 1104 if (ub_indices[i] != restart_index) { 1105 if (ub_indices[i] > max_ub) max_ub = ub_indices[i]; 1106 if (ub_indices[i] < min_ub) min_ub = ub_indices[i]; 1107 } 1108 } 1109 } 1110 else { 1111 for (i = 0; i < count; i++) { 1112 if (ub_indices[i] > max_ub) max_ub = ub_indices[i]; 1113 if (ub_indices[i] < min_ub) min_ub = ub_indices[i]; 1114 } 1115 } 1116 *out_min_index = min_ub; 1117 *out_max_index = max_ub; 1118 break; 1119 } 1120 default: 1121 assert(0); 1122 *out_min_index = 0; 1123 *out_max_index = 0; 1124 } 1125 1126 if (transfer) { 1127 pipe_buffer_unmap(pipe, transfer); 1128 } 1129 } 1130 1131 static void u_vbuf_set_driver_vertex_buffers(struct u_vbuf *mgr) 1132 { 1133 struct pipe_context *pipe = mgr->pipe; 1134 unsigned start_slot, count; 1135 1136 start_slot = ffs(mgr->dirty_real_vb_mask) - 1; 1137 count = util_last_bit(mgr->dirty_real_vb_mask >> start_slot); 1138 1139 pipe->set_vertex_buffers(pipe, start_slot, count, 1140 mgr->real_vertex_buffer + start_slot); 1141 mgr->dirty_real_vb_mask = 0; 1142 } 1143 1144 void u_vbuf_draw_vbo(struct u_vbuf *mgr, const struct pipe_draw_info *info) 1145 { 1146 struct pipe_context *pipe = mgr->pipe; 1147 int start_vertex, min_index; 1148 unsigned num_vertices; 1149 boolean unroll_indices = FALSE; 1150 uint32_t used_vb_mask = mgr->ve->used_vb_mask; 1151 uint32_t user_vb_mask = mgr->user_vb_mask & used_vb_mask; 1152 uint32_t incompatible_vb_mask = mgr->incompatible_vb_mask & used_vb_mask; 1153 struct pipe_draw_info new_info; 1154 1155 /* Normal draw. No fallback and no user buffers. */ 1156 if (!incompatible_vb_mask && 1157 !mgr->ve->incompatible_elem_mask && 1158 !user_vb_mask) { 1159 1160 /* Set vertex buffers if needed. */ 1161 if (mgr->dirty_real_vb_mask & used_vb_mask) { 1162 u_vbuf_set_driver_vertex_buffers(mgr); 1163 } 1164 1165 pipe->draw_vbo(pipe, info); 1166 return; 1167 } 1168 1169 new_info = *info; 1170 1171 /* Fallback. We need to know all the parameters. */ 1172 if (new_info.indirect) { 1173 struct pipe_transfer *transfer = NULL; 1174 int *data; 1175 1176 if (new_info.indexed) { 1177 data = pipe_buffer_map_range(pipe, new_info.indirect, 1178 new_info.indirect_offset, 20, 1179 PIPE_TRANSFER_READ, &transfer); 1180 new_info.index_bias = data[3]; 1181 new_info.start_instance = data[4]; 1182 } 1183 else { 1184 data = pipe_buffer_map_range(pipe, new_info.indirect, 1185 new_info.indirect_offset, 16, 1186 PIPE_TRANSFER_READ, &transfer); 1187 new_info.start_instance = data[3]; 1188 } 1189 1190 new_info.count = data[0]; 1191 new_info.instance_count = data[1]; 1192 new_info.start = data[2]; 1193 pipe_buffer_unmap(pipe, transfer); 1194 new_info.indirect = NULL; 1195 } 1196 1197 if (new_info.indexed) { 1198 /* See if anything needs to be done for per-vertex attribs. */ 1199 if (u_vbuf_need_minmax_index(mgr)) { 1200 int max_index; 1201 1202 if (new_info.max_index != ~0u) { 1203 min_index = new_info.min_index; 1204 max_index = new_info.max_index; 1205 } else { 1206 u_vbuf_get_minmax_index(mgr->pipe, &mgr->index_buffer, 1207 new_info.primitive_restart, 1208 new_info.restart_index, new_info.start, 1209 new_info.count, &min_index, &max_index); 1210 } 1211 1212 assert(min_index <= max_index); 1213 1214 start_vertex = min_index + new_info.index_bias; 1215 num_vertices = max_index + 1 - min_index; 1216 1217 /* Primitive restart doesn't work when unrolling indices. 1218 * We would have to break this drawing operation into several ones. */ 1219 /* Use some heuristic to see if unrolling indices improves 1220 * performance. */ 1221 if (!new_info.primitive_restart && 1222 num_vertices > new_info.count*2 && 1223 num_vertices - new_info.count > 32 && 1224 !u_vbuf_mapping_vertex_buffer_blocks(mgr)) { 1225 unroll_indices = TRUE; 1226 user_vb_mask &= ~(mgr->nonzero_stride_vb_mask & 1227 mgr->ve->noninstance_vb_mask_any); 1228 } 1229 } else { 1230 /* Nothing to do for per-vertex attribs. */ 1231 start_vertex = 0; 1232 num_vertices = 0; 1233 min_index = 0; 1234 } 1235 } else { 1236 start_vertex = new_info.start; 1237 num_vertices = new_info.count; 1238 min_index = 0; 1239 } 1240 1241 /* Translate vertices with non-native layouts or formats. */ 1242 if (unroll_indices || 1243 incompatible_vb_mask || 1244 mgr->ve->incompatible_elem_mask) { 1245 if (!u_vbuf_translate_begin(mgr, start_vertex, num_vertices, 1246 new_info.start_instance, 1247 new_info.instance_count, new_info.start, 1248 new_info.count, min_index, unroll_indices)) { 1249 debug_warn_once("u_vbuf_translate_begin() failed"); 1250 return; 1251 } 1252 1253 if (unroll_indices) { 1254 new_info.indexed = FALSE; 1255 new_info.index_bias = 0; 1256 new_info.min_index = 0; 1257 new_info.max_index = new_info.count - 1; 1258 new_info.start = 0; 1259 } 1260 1261 user_vb_mask &= ~(incompatible_vb_mask | 1262 mgr->ve->incompatible_vb_mask_all); 1263 } 1264 1265 /* Upload user buffers. */ 1266 if (user_vb_mask) { 1267 if (u_vbuf_upload_buffers(mgr, start_vertex, num_vertices, 1268 new_info.start_instance, 1269 new_info.instance_count) != PIPE_OK) { 1270 debug_warn_once("u_vbuf_upload_buffers() failed"); 1271 return; 1272 } 1273 1274 mgr->dirty_real_vb_mask |= user_vb_mask; 1275 } 1276 1277 /* 1278 if (unroll_indices) { 1279 printf("unrolling indices: start_vertex = %i, num_vertices = %i\n", 1280 start_vertex, num_vertices); 1281 util_dump_draw_info(stdout, info); 1282 printf("\n"); 1283 } 1284 1285 unsigned i; 1286 for (i = 0; i < mgr->nr_vertex_buffers; i++) { 1287 printf("input %i: ", i); 1288 util_dump_vertex_buffer(stdout, mgr->vertex_buffer+i); 1289 printf("\n"); 1290 } 1291 for (i = 0; i < mgr->nr_real_vertex_buffers; i++) { 1292 printf("real %i: ", i); 1293 util_dump_vertex_buffer(stdout, mgr->real_vertex_buffer+i); 1294 printf("\n"); 1295 } 1296 */ 1297 1298 u_upload_unmap(mgr->uploader); 1299 u_vbuf_set_driver_vertex_buffers(mgr); 1300 1301 pipe->draw_vbo(pipe, &new_info); 1302 1303 if (mgr->using_translate) { 1304 u_vbuf_translate_end(mgr); 1305 } 1306 } 1307 1308 void u_vbuf_save_vertex_elements(struct u_vbuf *mgr) 1309 { 1310 assert(!mgr->ve_saved); 1311 mgr->ve_saved = mgr->ve; 1312 } 1313 1314 void u_vbuf_restore_vertex_elements(struct u_vbuf *mgr) 1315 { 1316 if (mgr->ve != mgr->ve_saved) { 1317 struct pipe_context *pipe = mgr->pipe; 1318 1319 mgr->ve = mgr->ve_saved; 1320 pipe->bind_vertex_elements_state(pipe, 1321 mgr->ve ? mgr->ve->driver_cso : NULL); 1322 } 1323 mgr->ve_saved = NULL; 1324 } 1325 1326 void u_vbuf_save_aux_vertex_buffer_slot(struct u_vbuf *mgr) 1327 { 1328 struct pipe_vertex_buffer *vb = 1329 &mgr->vertex_buffer[mgr->aux_vertex_buffer_slot]; 1330 1331 pipe_resource_reference(&mgr->aux_vertex_buffer_saved.buffer, vb->buffer); 1332 memcpy(&mgr->aux_vertex_buffer_saved, vb, sizeof(*vb)); 1333 } 1334 1335 void u_vbuf_restore_aux_vertex_buffer_slot(struct u_vbuf *mgr) 1336 { 1337 u_vbuf_set_vertex_buffers(mgr, mgr->aux_vertex_buffer_slot, 1, 1338 &mgr->aux_vertex_buffer_saved); 1339 pipe_resource_reference(&mgr->aux_vertex_buffer_saved.buffer, NULL); 1340 } 1341
