1/************************************************************************** 2 * 3 * Copyright 2007 VMware, Inc. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 29#include "main/arrayobj.h" 30#include "main/image.h" 31#include "main/macros.h" 32#include "main/varray.h" 33 34#include "vbo/vbo.h" 35 36#include "st_context.h" 37#include "st_atom.h" 38#include "st_cb_bitmap.h" 39#include "st_draw.h" 40#include "st_program.h" 41#include "st_util.h" 42 43#include "pipe/p_context.h" 44#include "pipe/p_defines.h" 45#include "util/u_inlines.h" 46#include "util/u_draw.h" 47#include "util/format/u_format.h" 48 49#include "draw/draw_private.h" 50#include "draw/draw_context.h" 51 52 53/** 54 * Set the (private) draw module's post-transformed vertex format when in 55 * GL_SELECT or GL_FEEDBACK mode or for glRasterPos. 56 */ 57static void 58set_feedback_vertex_format(struct gl_context *ctx) 59{ 60#if 0 61 struct st_context *st = st_context(ctx); 62 struct vertex_info vinfo; 63 GLuint i; 64 65 memset(&vinfo, 0, sizeof(vinfo)); 66 67 if (ctx->RenderMode == GL_SELECT) { 68 assert(ctx->RenderMode == GL_SELECT); 69 vinfo.num_attribs = 1; 70 vinfo.format[0] = FORMAT_4F; 71 vinfo.interp_mode[0] = INTERP_LINEAR; 72 } 73 else { 74 /* GL_FEEDBACK, or glRasterPos */ 75 /* emit all attribs (pos, color, texcoord) as GLfloat[4] */ 76 vinfo.num_attribs = st->state.vs->cso->state.num_outputs; 77 for (i = 0; i < vinfo.num_attribs; i++) { 78 vinfo.format[i] = FORMAT_4F; 79 vinfo.interp_mode[i] = INTERP_LINEAR; 80 } 81 } 82 83 draw_set_vertex_info(st->draw, &vinfo); 84#endif 85} 86 87 88/** 89 * Called by VBO to draw arrays when in selection or feedback mode and 90 * to implement glRasterPos. 91 * This function mirrors the normal st_draw_vbo(). 92 * Look at code refactoring some day. 93 */ 94void 95st_feedback_draw_vbo(struct gl_context *ctx, 96 const struct _mesa_prim *prims, 97 unsigned nr_prims, 98 const struct _mesa_index_buffer *ib, 99 bool index_bounds_valid, 100 bool primitive_restart, 101 unsigned restart_index, 102 unsigned min_index, 103 unsigned max_index, 104 unsigned num_instances, 105 unsigned base_instance) 106{ 107 struct st_context *st = st_context(ctx); 108 struct pipe_context *pipe = st->pipe; 109 struct draw_context *draw = st_get_draw_context(st); 110 const struct gl_vertex_program *vp; 111 struct st_common_variant *vp_variant; 112 struct pipe_vertex_buffer vbuffers[PIPE_MAX_SHADER_INPUTS]; 113 unsigned num_vbuffers = 0; 114 struct cso_velems_state velements; 115 struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS] = {NULL}; 116 struct pipe_transfer *ib_transfer = NULL; 117 GLuint i; 118 const void *mapped_indices = NULL; 119 struct pipe_draw_info info; 120 121 if (!draw) 122 return; 123 124 /* Initialize pipe_draw_info. */ 125 info.primitive_restart = false; 126 info.take_index_buffer_ownership = false; 127 info.restart_index = 0; 128 info.view_mask = 0; 129 130 st_flush_bitmap_cache(st); 131 st_invalidate_readpix_cache(st); 132 133 st_validate_state(st, ST_PIPELINE_RENDER); 134 135 if (ib && !index_bounds_valid) { 136 vbo_get_minmax_indices(ctx, prims, ib, &min_index, &max_index, nr_prims, 137 primitive_restart, restart_index); 138 index_bounds_valid = true; 139 } 140 141 /* must get these after state validation! */ 142 struct st_common_variant_key key; 143 /* We have to use memcpy to make sure that all bits are copied. */ 144 memcpy(&key, &st->vp_variant->key, sizeof(key)); 145 key.is_draw_shader = true; 146 147 vp = (struct gl_vertex_program *)st->vp; 148 vp_variant = st_get_common_variant(st, st->vp, &key); 149 150 /* 151 * Set up the draw module's state. 152 * 153 * We'd like to do this less frequently, but the normal state-update 154 * code sends state updates to the pipe, not to our private draw module. 155 */ 156 assert(draw); 157 draw_set_viewport_states(draw, 0, 1, &st->state.viewport[0]); 158 draw_set_clip_state(draw, &st->state.clip); 159 draw_set_rasterizer_state(draw, &st->state.rasterizer, NULL); 160 draw_bind_vertex_shader(draw, vp_variant->base.driver_shader); 161 set_feedback_vertex_format(ctx); 162 163 /* Must setup these after state validation! */ 164 /* Setup arrays */ 165 bool uses_user_vertex_buffers; 166 st_setup_arrays(st, vp, vp_variant, &velements, vbuffers, &num_vbuffers, 167 &uses_user_vertex_buffers); 168 /* Setup current values as userspace arrays */ 169 st_setup_current_user(st, vp, vp_variant, &velements, vbuffers, &num_vbuffers); 170 171 /* Map all buffers and tell draw about their mapping */ 172 for (unsigned buf = 0; buf < num_vbuffers; ++buf) { 173 struct pipe_vertex_buffer *vbuffer = &vbuffers[buf]; 174 175 if (vbuffer->is_user_buffer) { 176 draw_set_mapped_vertex_buffer(draw, buf, vbuffer->buffer.user, ~0); 177 } else { 178 void *map = pipe_buffer_map(pipe, vbuffer->buffer.resource, 179 PIPE_MAP_READ, &vb_transfer[buf]); 180 draw_set_mapped_vertex_buffer(draw, buf, map, 181 vbuffer->buffer.resource->width0); 182 } 183 } 184 185 draw_set_vertex_buffers(draw, 0, num_vbuffers, 0, vbuffers); 186 draw_set_vertex_elements(draw, vp->num_inputs, velements.velems); 187 188 unsigned start = 0; 189 190 if (ib) { 191 struct gl_buffer_object *bufobj = ib->obj; 192 unsigned index_size = 1 << ib->index_size_shift; 193 194 if (index_size == 0) 195 goto out_unref_vertex; 196 197 if (bufobj && bufobj->Name) { 198 start = pointer_to_offset(ib->ptr) >> ib->index_size_shift; 199 mapped_indices = pipe_buffer_map(pipe, bufobj->buffer, 200 PIPE_MAP_READ, &ib_transfer); 201 } 202 else { 203 mapped_indices = ib->ptr; 204 } 205 206 info.index_size = index_size; 207 info.index_bounds_valid = index_bounds_valid; 208 info.min_index = min_index; 209 info.max_index = max_index; 210 info.has_user_indices = true; 211 info.index.user = mapped_indices; 212 213 draw_set_indexes(draw, 214 (ubyte *) mapped_indices, 215 index_size, ~0); 216 217 info.primitive_restart = primitive_restart; 218 info.restart_index = restart_index; 219 } else { 220 info.index_size = 0; 221 info.has_user_indices = false; 222 } 223 224 /* set constant buffer 0 */ 225 struct gl_program_parameter_list *params = st->vp->Parameters; 226 227 /* Update the constants which come from fixed-function state, such as 228 * transformation matrices, fog factors, etc. 229 * 230 * It must be done here if the state tracker doesn't update state vars 231 * in gl_program_parameter_list because allow_constbuf0_as_real_buffer 232 * is set. 233 */ 234 if (st->prefer_real_buffer_in_constbuf0 && params->StateFlags) 235 _mesa_load_state_parameters(st->ctx, params); 236 237 draw_set_constant_buffer_stride(draw, sizeof(float)); 238 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0, 239 params->ParameterValues, 240 params->NumParameterValues * 4); 241 242 /* set uniform buffers */ 243 const struct gl_program *prog = &vp->Base; 244 struct pipe_transfer *ubo_transfer[PIPE_MAX_CONSTANT_BUFFERS] = {0}; 245 assert(prog->info.num_ubos <= ARRAY_SIZE(ubo_transfer)); 246 247 for (unsigned i = 0; i < prog->sh.NumUniformBlocks; i++) { 248 struct gl_buffer_binding *binding = 249 &st->ctx->UniformBufferBindings[prog->sh.UniformBlocks[i]->Binding]; 250 struct gl_buffer_object *st_obj = binding->BufferObject; 251 struct pipe_resource *buf = st_obj->buffer; 252 253 if (!buf) 254 continue; 255 256 unsigned offset = binding->Offset; 257 unsigned size = buf->width0 - offset; 258 259 /* AutomaticSize is FALSE if the buffer was set with BindBufferRange. 260 * Take the minimum just to be sure. 261 */ 262 if (!binding->AutomaticSize) 263 size = MIN2(size, (unsigned) binding->Size); 264 265 void *ptr = pipe_buffer_map_range(pipe, buf, offset, size, 266 PIPE_MAP_READ, &ubo_transfer[i]); 267 268 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 1 + i, ptr, 269 size); 270 } 271 272 /* shader buffers */ 273 /* TODO: atomic counter buffers */ 274 struct pipe_transfer *ssbo_transfer[PIPE_MAX_SHADER_BUFFERS] = {0}; 275 276 for (unsigned i = 0; i < prog->info.num_ssbos; i++) { 277 struct gl_buffer_binding *binding = 278 &st->ctx->ShaderStorageBufferBindings[ 279 prog->sh.ShaderStorageBlocks[i]->Binding]; 280 struct gl_buffer_object *st_obj = binding->BufferObject; 281 struct pipe_resource *buf = st_obj->buffer; 282 283 if (!buf) 284 continue; 285 286 unsigned offset = binding->Offset; 287 unsigned size = buf->width0 - binding->Offset; 288 289 /* AutomaticSize is FALSE if the buffer was set with BindBufferRange. 290 * Take the minimum just to be sure. 291 */ 292 if (!binding->AutomaticSize) 293 size = MIN2(size, (unsigned) binding->Size); 294 295 void *ptr = pipe_buffer_map_range(pipe, buf, offset, size, 296 PIPE_MAP_READ, &ssbo_transfer[i]); 297 298 draw_set_mapped_shader_buffer(draw, PIPE_SHADER_VERTEX, 299 i, ptr, size); 300 } 301 302 /* samplers */ 303 struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS]; 304 for (unsigned i = 0; i < st->state.num_vert_samplers; i++) 305 samplers[i] = &st->state.vert_samplers[i]; 306 307 draw_set_samplers(draw, PIPE_SHADER_VERTEX, samplers, 308 st->state.num_vert_samplers); 309 310 /* sampler views */ 311 struct pipe_sampler_view *views[PIPE_MAX_SAMPLERS]; 312 unsigned num_views = 313 st_get_sampler_views(st, PIPE_SHADER_VERTEX, prog, views); 314 315 draw_set_sampler_views(draw, PIPE_SHADER_VERTEX, views, num_views); 316 317 struct pipe_transfer *sv_transfer[PIPE_MAX_SAMPLERS][PIPE_MAX_TEXTURE_LEVELS]; 318 319 for (unsigned i = 0; i < num_views; i++) { 320 struct pipe_sampler_view *view = views[i]; 321 if (!view) 322 continue; 323 324 struct pipe_resource *res = view->texture; 325 unsigned width0 = res->width0; 326 unsigned num_layers = res->depth0; 327 unsigned first_level = 0; 328 unsigned last_level = 0; 329 uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS]; 330 uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS]; 331 uint32_t mip_offset[PIPE_MAX_TEXTURE_LEVELS]; 332 uintptr_t mip_addr[PIPE_MAX_TEXTURE_LEVELS]; 333 uintptr_t base_addr; 334 335 if (res->target != PIPE_BUFFER) { 336 first_level = view->u.tex.first_level; 337 last_level = view->u.tex.last_level; 338 num_layers = view->u.tex.last_layer - view->u.tex.first_layer + 1; 339 base_addr = UINTPTR_MAX; 340 341 for (unsigned j = first_level; j <= last_level; j++) { 342 unsigned map_layers = res->target == PIPE_TEXTURE_3D ? 343 util_num_layers(res, j) : num_layers; 344 345 sv_transfer[i][j] = NULL; 346 mip_addr[j] = (uintptr_t) 347 pipe_texture_map_3d(pipe, res, j, 348 PIPE_MAP_READ, 0, 0, 349 view->u.tex.first_layer, 350 u_minify(res->width0, j), 351 u_minify(res->height0, j), 352 map_layers, &sv_transfer[i][j]); 353 row_stride[j] = sv_transfer[i][j]->stride; 354 img_stride[j] = sv_transfer[i][j]->layer_stride; 355 356 /* Get the minimum address, because the draw module takes only 357 * 1 address for the whole texture + uint32 offsets for mip levels, 358 * so we need to convert mapped resource pointers into that scheme. 359 */ 360 base_addr = MIN2(base_addr, mip_addr[j]); 361 } 362 for (unsigned j = first_level; j <= last_level; j++) { 363 /* TODO: The draw module should accept pointers for mipmap levels 364 * instead of offsets. This is unlikely to work on 64-bit archs. 365 */ 366 assert(mip_addr[j] - base_addr <= UINT32_MAX); 367 mip_offset[j] = mip_addr[j] - base_addr; 368 } 369 } else { 370 width0 = view->u.buf.size / util_format_get_blocksize(view->format); 371 372 /* probably don't really need to fill that out */ 373 mip_offset[0] = 0; 374 row_stride[0] = 0; 375 img_stride[0] = 0; 376 377 sv_transfer[i][0] = NULL; 378 base_addr = (uintptr_t) 379 pipe_buffer_map_range(pipe, res, view->u.buf.offset, 380 view->u.buf.size, 381 PIPE_MAP_READ, 382 &sv_transfer[i][0]); 383 } 384 385 draw_set_mapped_texture(draw, PIPE_SHADER_VERTEX, i, width0, 386 res->height0, num_layers, first_level, 387 last_level, 0, 0, (void*)base_addr, row_stride, 388 img_stride, mip_offset); 389 } 390 391 /* shader images */ 392 struct pipe_image_view images[PIPE_MAX_SHADER_IMAGES]; 393 struct pipe_transfer *img_transfer[PIPE_MAX_SHADER_IMAGES] = {0}; 394 395 for (unsigned i = 0; i < prog->info.num_images; i++) { 396 struct pipe_image_view *img = &images[i]; 397 398 st_convert_image_from_unit(st, img, prog->sh.ImageUnits[i], 399 prog->sh.ImageAccess[i]); 400 401 struct pipe_resource *res = img->resource; 402 if (!res) 403 continue; 404 405 unsigned width, height, num_layers, row_stride, img_stride; 406 void *addr; 407 408 if (res->target != PIPE_BUFFER) { 409 width = u_minify(res->width0, img->u.tex.level); 410 height = u_minify(res->height0, img->u.tex.level); 411 num_layers = img->u.tex.last_layer - img->u.tex.first_layer + 1; 412 413 addr = pipe_texture_map_3d(pipe, res, img->u.tex.level, 414 PIPE_MAP_READ, 0, 0, 415 img->u.tex.first_layer, 416 width, height, num_layers, 417 &img_transfer[i]); 418 row_stride = img_transfer[i]->stride; 419 img_stride = img_transfer[i]->layer_stride; 420 } else { 421 width = img->u.buf.size / util_format_get_blocksize(img->format); 422 423 /* probably don't really need to fill that out */ 424 row_stride = 0; 425 img_stride = 0; 426 height = num_layers = 1; 427 428 addr = pipe_buffer_map_range(pipe, res, img->u.buf.offset, 429 img->u.buf.size, PIPE_MAP_READ, 430 &img_transfer[i]); 431 } 432 433 draw_set_mapped_image(draw, PIPE_SHADER_VERTEX, i, width, height, 434 num_layers, addr, row_stride, img_stride, 0, 0); 435 } 436 draw_set_images(draw, PIPE_SHADER_VERTEX, images, prog->info.num_images); 437 438 info.start_instance = base_instance; 439 info.instance_count = num_instances; 440 441 /* draw here */ 442 for (i = 0; i < nr_prims; i++) { 443 struct pipe_draw_start_count_bias d; 444 445 d.count = prims[i].count; 446 447 if (!d.count) 448 continue; 449 450 d.start = start + prims[i].start; 451 452 info.mode = prims[i].mode; 453 d.index_bias = prims[i].basevertex; 454 if (!ib) { 455 info.min_index = d.start; 456 info.max_index = d.start + d.count - 1; 457 } 458 459 draw_vbo(draw, &info, prims[i].draw_id, NULL, &d, 1, 460 ctx->TessCtrlProgram.patch_vertices); 461 } 462 463 /* unmap images */ 464 for (unsigned i = 0; i < prog->info.num_images; i++) { 465 if (img_transfer[i]) { 466 draw_set_mapped_image(draw, PIPE_SHADER_VERTEX, i, 0, 0, 0, NULL, 0, 0, 0, 0); 467 if (img_transfer[i]->resource->target == PIPE_BUFFER) 468 pipe_buffer_unmap(pipe, img_transfer[i]); 469 else 470 pipe_texture_unmap(pipe, img_transfer[i]); 471 } 472 } 473 474 /* unmap sampler views */ 475 for (unsigned i = 0; i < num_views; i++) { 476 struct pipe_sampler_view *view = views[i]; 477 478 if (view) { 479 if (view->texture->target != PIPE_BUFFER) { 480 for (unsigned j = view->u.tex.first_level; 481 j <= view->u.tex.last_level; j++) { 482 pipe_texture_unmap(pipe, sv_transfer[i][j]); 483 } 484 } else { 485 pipe_buffer_unmap(pipe, sv_transfer[i][0]); 486 } 487 488 pipe_sampler_view_reference(&views[i], NULL); 489 } 490 } 491 492 draw_set_samplers(draw, PIPE_SHADER_VERTEX, NULL, 0); 493 draw_set_sampler_views(draw, PIPE_SHADER_VERTEX, NULL, 0); 494 495 for (unsigned i = 0; i < prog->info.num_ssbos; i++) { 496 if (ssbo_transfer[i]) { 497 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 1 + i, 498 NULL, 0); 499 pipe_buffer_unmap(pipe, ssbo_transfer[i]); 500 } 501 } 502 503 for (unsigned i = 0; i < prog->info.num_ubos; i++) { 504 if (ubo_transfer[i]) { 505 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 1 + i, 506 NULL, 0); 507 pipe_buffer_unmap(pipe, ubo_transfer[i]); 508 } 509 } 510 511 /* 512 * unmap vertex/index buffers 513 */ 514 if (ib) { 515 draw_set_indexes(draw, NULL, 0, 0); 516 if (ib_transfer) 517 pipe_buffer_unmap(pipe, ib_transfer); 518 } 519 520 out_unref_vertex: 521 for (unsigned buf = 0; buf < num_vbuffers; ++buf) { 522 if (vb_transfer[buf]) 523 pipe_buffer_unmap(pipe, vb_transfer[buf]); 524 draw_set_mapped_vertex_buffer(draw, buf, NULL, 0); 525 } 526 draw_set_vertex_buffers(draw, 0, 0, num_vbuffers, NULL); 527 528 draw_bind_vertex_shader(draw, NULL); 529} 530