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_cb_bufferobjects.h" 40#include "st_draw.h" 41#include "st_program.h" 42#include "st_util.h" 43 44#include "pipe/p_context.h" 45#include "pipe/p_defines.h" 46#include "util/u_inlines.h" 47#include "util/u_draw.h" 48#include "util/format/u_format.h" 49 50#include "draw/draw_private.h" 51#include "draw/draw_context.h" 52 53 54/** 55 * Set the (private) draw module's post-transformed vertex format when in 56 * GL_SELECT or GL_FEEDBACK mode or for glRasterPos. 57 */ 58static void 59set_feedback_vertex_format(struct gl_context *ctx) 60{ 61#if 0 62 struct st_context *st = st_context(ctx); 63 struct vertex_info vinfo; 64 GLuint i; 65 66 memset(&vinfo, 0, sizeof(vinfo)); 67 68 if (ctx->RenderMode == GL_SELECT) { 69 assert(ctx->RenderMode == GL_SELECT); 70 vinfo.num_attribs = 1; 71 vinfo.format[0] = FORMAT_4F; 72 vinfo.interp_mode[0] = INTERP_LINEAR; 73 } 74 else { 75 /* GL_FEEDBACK, or glRasterPos */ 76 /* emit all attribs (pos, color, texcoord) as GLfloat[4] */ 77 vinfo.num_attribs = st->state.vs->cso->state.num_outputs; 78 for (i = 0; i < vinfo.num_attribs; i++) { 79 vinfo.format[i] = FORMAT_4F; 80 vinfo.interp_mode[i] = INTERP_LINEAR; 81 } 82 } 83 84 draw_set_vertex_info(st->draw, &vinfo); 85#endif 86} 87 88 89/** 90 * Called by VBO to draw arrays when in selection or feedback mode and 91 * to implement glRasterPos. 92 * This function mirrors the normal st_draw_vbo(). 93 * Look at code refactoring some day. 94 */ 95void 96st_feedback_draw_vbo(struct gl_context *ctx, 97 const struct _mesa_prim *prims, 98 unsigned nr_prims, 99 const struct _mesa_index_buffer *ib, 100 bool index_bounds_valid, 101 bool primitive_restart, 102 unsigned restart_index, 103 unsigned min_index, 104 unsigned max_index, 105 unsigned num_instances, 106 unsigned base_instance) 107{ 108 struct st_context *st = st_context(ctx); 109 struct pipe_context *pipe = st->pipe; 110 struct draw_context *draw = st_get_draw_context(st); 111 const struct st_vertex_program *vp; 112 struct st_common_variant *vp_variant; 113 struct pipe_vertex_buffer vbuffers[PIPE_MAX_SHADER_INPUTS]; 114 unsigned num_vbuffers = 0; 115 struct cso_velems_state velements; 116 struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS] = {NULL}; 117 struct pipe_transfer *ib_transfer = NULL; 118 GLuint i; 119 const void *mapped_indices = NULL; 120 struct pipe_draw_info info; 121 122 if (!draw) 123 return; 124 125 /* Initialize pipe_draw_info. */ 126 info.primitive_restart = false; 127 info.take_index_buffer_ownership = false; 128 info.restart_index = 0; 129 info.view_mask = 0; 130 131 st_flush_bitmap_cache(st); 132 st_invalidate_readpix_cache(st); 133 134 st_validate_state(st, ST_PIPELINE_RENDER); 135 136 if (ib && !index_bounds_valid) { 137 vbo_get_minmax_indices(ctx, prims, ib, &min_index, &max_index, nr_prims, 138 primitive_restart, restart_index); 139 index_bounds_valid = true; 140 } 141 142 /* must get these after state validation! */ 143 struct st_common_variant_key key; 144 /* We have to use memcpy to make sure that all bits are copied. */ 145 memcpy(&key, &st->vp_variant->key, sizeof(key)); 146 key.is_draw_shader = true; 147 148 vp = (struct st_vertex_program *)st->vp; 149 vp_variant = st_get_common_variant(st, st->vp, &key); 150 151 /* 152 * Set up the draw module's state. 153 * 154 * We'd like to do this less frequently, but the normal state-update 155 * code sends state updates to the pipe, not to our private draw module. 156 */ 157 assert(draw); 158 draw_set_viewport_states(draw, 0, 1, &st->state.viewport[0]); 159 draw_set_clip_state(draw, &st->state.clip); 160 draw_set_rasterizer_state(draw, &st->state.rasterizer, NULL); 161 draw_bind_vertex_shader(draw, vp_variant->base.driver_shader); 162 set_feedback_vertex_format(ctx); 163 164 /* Must setup these after state validation! */ 165 /* Setup arrays */ 166 bool uses_user_vertex_buffers; 167 st_setup_arrays(st, vp, vp_variant, &velements, vbuffers, &num_vbuffers, 168 &uses_user_vertex_buffers); 169 /* Setup current values as userspace arrays */ 170 st_setup_current_user(st, vp, vp_variant, &velements, vbuffers, &num_vbuffers); 171 172 /* Map all buffers and tell draw about their mapping */ 173 for (unsigned buf = 0; buf < num_vbuffers; ++buf) { 174 struct pipe_vertex_buffer *vbuffer = &vbuffers[buf]; 175 176 if (vbuffer->is_user_buffer) { 177 draw_set_mapped_vertex_buffer(draw, buf, vbuffer->buffer.user, ~0); 178 } else { 179 void *map = pipe_buffer_map(pipe, vbuffer->buffer.resource, 180 PIPE_MAP_READ, &vb_transfer[buf]); 181 draw_set_mapped_vertex_buffer(draw, buf, map, 182 vbuffer->buffer.resource->width0); 183 } 184 } 185 186 draw_set_vertex_buffers(draw, 0, num_vbuffers, 0, vbuffers); 187 draw_set_vertex_elements(draw, vp->num_inputs, velements.velems); 188 189 unsigned start = 0; 190 191 if (ib) { 192 struct gl_buffer_object *bufobj = ib->obj; 193 unsigned index_size = 1 << ib->index_size_shift; 194 195 if (index_size == 0) 196 goto out_unref_vertex; 197 198 if (bufobj && bufobj->Name) { 199 struct st_buffer_object *stobj = st_buffer_object(bufobj); 200 201 start = pointer_to_offset(ib->ptr) >> ib->index_size_shift; 202 mapped_indices = pipe_buffer_map(pipe, stobj->buffer, 203 PIPE_MAP_READ, &ib_transfer); 204 } 205 else { 206 mapped_indices = ib->ptr; 207 } 208 209 info.index_size = index_size; 210 info.index_bounds_valid = index_bounds_valid; 211 info.min_index = min_index; 212 info.max_index = max_index; 213 info.has_user_indices = true; 214 info.index.user = mapped_indices; 215 216 draw_set_indexes(draw, 217 (ubyte *) mapped_indices, 218 index_size, ~0); 219 220 info.primitive_restart = primitive_restart; 221 info.restart_index = restart_index; 222 } else { 223 info.index_size = 0; 224 info.has_user_indices = false; 225 } 226 227 /* set constant buffer 0 */ 228 struct gl_program_parameter_list *params = st->vp->Base.Parameters; 229 230 /* Update the constants which come from fixed-function state, such as 231 * transformation matrices, fog factors, etc. 232 * 233 * It must be done here if the state tracker doesn't update state vars 234 * in gl_program_parameter_list because allow_constbuf0_as_real_buffer 235 * is set. 236 */ 237 if (st->prefer_real_buffer_in_constbuf0 && params->StateFlags) 238 _mesa_load_state_parameters(st->ctx, params); 239 240 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0, 241 params->ParameterValues, 242 params->NumParameterValues * 4); 243 244 /* set uniform buffers */ 245 const struct gl_program *prog = &vp->Base.Base; 246 struct pipe_transfer *ubo_transfer[PIPE_MAX_CONSTANT_BUFFERS] = {0}; 247 assert(prog->info.num_ubos <= ARRAY_SIZE(ubo_transfer)); 248 249 for (unsigned i = 0; i < prog->sh.NumUniformBlocks; i++) { 250 struct gl_buffer_binding *binding = 251 &st->ctx->UniformBufferBindings[prog->sh.UniformBlocks[i]->Binding]; 252 struct st_buffer_object *st_obj = st_buffer_object(binding->BufferObject); 253 struct pipe_resource *buf = st_obj->buffer; 254 255 if (!buf) 256 continue; 257 258 unsigned offset = binding->Offset; 259 unsigned size = buf->width0 - offset; 260 261 /* AutomaticSize is FALSE if the buffer was set with BindBufferRange. 262 * Take the minimum just to be sure. 263 */ 264 if (!binding->AutomaticSize) 265 size = MIN2(size, (unsigned) binding->Size); 266 267 void *ptr = pipe_buffer_map_range(pipe, buf, offset, size, 268 PIPE_MAP_READ, &ubo_transfer[i]); 269 270 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 1 + i, ptr, 271 size); 272 } 273 274 /* shader buffers */ 275 /* TODO: atomic counter buffers */ 276 struct pipe_transfer *ssbo_transfer[PIPE_MAX_SHADER_BUFFERS] = {0}; 277 278 for (unsigned i = 0; i < prog->info.num_ssbos; i++) { 279 struct gl_buffer_binding *binding = 280 &st->ctx->ShaderStorageBufferBindings[ 281 prog->sh.ShaderStorageBlocks[i]->Binding]; 282 struct st_buffer_object *st_obj = st_buffer_object(binding->BufferObject); 283 struct pipe_resource *buf = st_obj->buffer; 284 285 if (!buf) 286 continue; 287 288 unsigned offset = binding->Offset; 289 unsigned size = buf->width0 - binding->Offset; 290 291 /* AutomaticSize is FALSE if the buffer was set with BindBufferRange. 292 * Take the minimum just to be sure. 293 */ 294 if (!binding->AutomaticSize) 295 size = MIN2(size, (unsigned) binding->Size); 296 297 void *ptr = pipe_buffer_map_range(pipe, buf, offset, size, 298 PIPE_MAP_READ, &ssbo_transfer[i]); 299 300 draw_set_mapped_shader_buffer(draw, PIPE_SHADER_VERTEX, 301 i, ptr, size); 302 } 303 304 /* samplers */ 305 struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS]; 306 for (unsigned i = 0; i < st->state.num_vert_samplers; i++) 307 samplers[i] = &st->state.vert_samplers[i]; 308 309 draw_set_samplers(draw, PIPE_SHADER_VERTEX, samplers, 310 st->state.num_vert_samplers); 311 312 /* sampler views */ 313 struct pipe_sampler_view *views[PIPE_MAX_SAMPLERS]; 314 unsigned num_views = 315 st_get_sampler_views(st, PIPE_SHADER_VERTEX, prog, views); 316 317 draw_set_sampler_views(draw, PIPE_SHADER_VERTEX, views, num_views); 318 319 struct pipe_transfer *sv_transfer[PIPE_MAX_SAMPLERS][PIPE_MAX_TEXTURE_LEVELS]; 320 321 for (unsigned i = 0; i < num_views; i++) { 322 struct pipe_sampler_view *view = views[i]; 323 if (!view) 324 continue; 325 326 struct pipe_resource *res = view->texture; 327 unsigned width0 = res->width0; 328 unsigned num_layers = res->depth0; 329 unsigned first_level = 0; 330 unsigned last_level = 0; 331 uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS]; 332 uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS]; 333 uint32_t mip_offset[PIPE_MAX_TEXTURE_LEVELS]; 334 uintptr_t mip_addr[PIPE_MAX_TEXTURE_LEVELS]; 335 uintptr_t base_addr; 336 337 if (res->target != PIPE_BUFFER) { 338 first_level = view->u.tex.first_level; 339 last_level = view->u.tex.last_level; 340 num_layers = view->u.tex.last_layer - view->u.tex.first_layer + 1; 341 base_addr = UINTPTR_MAX; 342 343 for (unsigned j = first_level; j <= last_level; j++) { 344 unsigned map_layers = res->target == PIPE_TEXTURE_3D ? 345 util_num_layers(res, j) : num_layers; 346 347 sv_transfer[i][j] = NULL; 348 mip_addr[j] = (uintptr_t) 349 pipe_texture_map_3d(pipe, res, j, 350 PIPE_MAP_READ, 0, 0, 351 view->u.tex.first_layer, 352 u_minify(res->width0, j), 353 u_minify(res->height0, j), 354 map_layers, &sv_transfer[i][j]); 355 row_stride[j] = sv_transfer[i][j]->stride; 356 img_stride[j] = sv_transfer[i][j]->layer_stride; 357 358 /* Get the minimum address, because the draw module takes only 359 * 1 address for the whole texture + uint32 offsets for mip levels, 360 * so we need to convert mapped resource pointers into that scheme. 361 */ 362 base_addr = MIN2(base_addr, mip_addr[j]); 363 } 364 for (unsigned j = first_level; j <= last_level; j++) { 365 /* TODO: The draw module should accept pointers for mipmap levels 366 * instead of offsets. This is unlikely to work on 64-bit archs. 367 */ 368 assert(mip_addr[j] - base_addr <= UINT32_MAX); 369 mip_offset[j] = mip_addr[j] - base_addr; 370 } 371 } else { 372 width0 = view->u.buf.size / util_format_get_blocksize(view->format); 373 374 /* probably don't really need to fill that out */ 375 mip_offset[0] = 0; 376 row_stride[0] = 0; 377 img_stride[0] = 0; 378 379 sv_transfer[i][0] = NULL; 380 base_addr = (uintptr_t) 381 pipe_buffer_map_range(pipe, res, view->u.buf.offset, 382 view->u.buf.size, 383 PIPE_MAP_READ, 384 &sv_transfer[i][0]); 385 } 386 387 draw_set_mapped_texture(draw, PIPE_SHADER_VERTEX, i, width0, 388 res->height0, num_layers, first_level, 389 last_level, 0, 0, (void*)base_addr, row_stride, 390 img_stride, mip_offset); 391 } 392 393 /* shader images */ 394 struct pipe_image_view images[PIPE_MAX_SHADER_IMAGES]; 395 struct pipe_transfer *img_transfer[PIPE_MAX_SHADER_IMAGES] = {0}; 396 397 for (unsigned i = 0; i < prog->info.num_images; i++) { 398 struct pipe_image_view *img = &images[i]; 399 400 st_convert_image_from_unit(st, img, prog->sh.ImageUnits[i], 401 prog->sh.ImageAccess[i]); 402 403 struct pipe_resource *res = img->resource; 404 if (!res) 405 continue; 406 407 unsigned width, height, num_layers, row_stride, img_stride; 408 void *addr; 409 410 if (res->target != PIPE_BUFFER) { 411 width = u_minify(res->width0, img->u.tex.level); 412 height = u_minify(res->height0, img->u.tex.level); 413 num_layers = img->u.tex.last_layer - img->u.tex.first_layer + 1; 414 415 addr = pipe_texture_map_3d(pipe, res, img->u.tex.level, 416 PIPE_MAP_READ, 0, 0, 417 img->u.tex.first_layer, 418 width, height, num_layers, 419 &img_transfer[i]); 420 row_stride = img_transfer[i]->stride; 421 img_stride = img_transfer[i]->layer_stride; 422 } else { 423 width = img->u.buf.size / util_format_get_blocksize(img->format); 424 425 /* probably don't really need to fill that out */ 426 row_stride = 0; 427 img_stride = 0; 428 height = num_layers = 1; 429 430 addr = pipe_buffer_map_range(pipe, res, img->u.buf.offset, 431 img->u.buf.size, PIPE_MAP_READ, 432 &img_transfer[i]); 433 } 434 435 draw_set_mapped_image(draw, PIPE_SHADER_VERTEX, i, width, height, 436 num_layers, addr, row_stride, img_stride, 0, 0); 437 } 438 draw_set_images(draw, PIPE_SHADER_VERTEX, images, prog->info.num_images); 439 440 info.start_instance = base_instance; 441 info.instance_count = num_instances; 442 443 /* draw here */ 444 for (i = 0; i < nr_prims; i++) { 445 struct pipe_draw_start_count_bias d; 446 447 d.count = prims[i].count; 448 449 if (!d.count) 450 continue; 451 452 d.start = start + prims[i].start; 453 454 info.mode = prims[i].mode; 455 d.index_bias = prims[i].basevertex; 456 if (!ib) { 457 info.min_index = d.start; 458 info.max_index = d.start + d.count - 1; 459 } 460 461 draw_vbo(draw, &info, prims[i].draw_id, NULL, &d, 1, 462 ctx->TessCtrlProgram.patch_vertices); 463 } 464 465 /* unmap images */ 466 for (unsigned i = 0; i < prog->info.num_images; i++) { 467 if (img_transfer[i]) { 468 draw_set_mapped_image(draw, PIPE_SHADER_VERTEX, i, 0, 0, 0, NULL, 0, 0, 0, 0); 469 if (img_transfer[i]->resource->target == PIPE_BUFFER) 470 pipe_buffer_unmap(pipe, img_transfer[i]); 471 else 472 pipe_texture_unmap(pipe, img_transfer[i]); 473 } 474 } 475 476 /* unmap sampler views */ 477 for (unsigned i = 0; i < num_views; i++) { 478 struct pipe_sampler_view *view = views[i]; 479 480 if (view) { 481 if (view->texture->target != PIPE_BUFFER) { 482 for (unsigned j = view->u.tex.first_level; 483 j <= view->u.tex.last_level; j++) { 484 pipe_texture_unmap(pipe, sv_transfer[i][j]); 485 } 486 } else { 487 pipe_buffer_unmap(pipe, sv_transfer[i][0]); 488 } 489 490 pipe_sampler_view_reference(&views[i], NULL); 491 } 492 } 493 494 draw_set_samplers(draw, PIPE_SHADER_VERTEX, NULL, 0); 495 draw_set_sampler_views(draw, PIPE_SHADER_VERTEX, NULL, 0); 496 497 for (unsigned i = 0; i < prog->info.num_ssbos; i++) { 498 if (ssbo_transfer[i]) { 499 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 1 + i, 500 NULL, 0); 501 pipe_buffer_unmap(pipe, ssbo_transfer[i]); 502 } 503 } 504 505 for (unsigned i = 0; i < prog->info.num_ubos; i++) { 506 if (ubo_transfer[i]) { 507 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 1 + i, 508 NULL, 0); 509 pipe_buffer_unmap(pipe, ubo_transfer[i]); 510 } 511 } 512 513 /* 514 * unmap vertex/index buffers 515 */ 516 if (ib) { 517 draw_set_indexes(draw, NULL, 0, 0); 518 if (ib_transfer) 519 pipe_buffer_unmap(pipe, ib_transfer); 520 } 521 522 out_unref_vertex: 523 for (unsigned buf = 0; buf < num_vbuffers; ++buf) { 524 if (vb_transfer[buf]) 525 pipe_buffer_unmap(pipe, vb_transfer[buf]); 526 draw_set_mapped_vertex_buffer(draw, buf, NULL, 0); 527 } 528 draw_set_vertex_buffers(draw, 0, 0, num_vbuffers, NULL); 529 530 draw_bind_vertex_shader(draw, NULL); 531} 532