vl_zscan.c revision dc4c821f0817a3db716f965692fb701079f66340
1/************************************************************************** 2 * 3 * Copyright 2011 Christian König 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 TUNGSTEN GRAPHICS 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 <assert.h> 29 30#include "pipe/p_screen.h" 31#include "pipe/p_context.h" 32 33#include "util/u_draw.h" 34#include "util/u_sampler.h" 35#include "util/u_inlines.h" 36#include "util/u_memory.h" 37 38#include "tgsi/tgsi_ureg.h" 39 40#include "vl_defines.h" 41#include "vl_types.h" 42 43#include "vl_zscan.h" 44#include "vl_vertex_buffers.h" 45 46enum VS_OUTPUT 47{ 48 VS_O_VPOS, 49 VS_O_VTEX 50}; 51 52const int vl_zscan_linear[] = 53{ 54 /* Linear scan pattern */ 55 0, 1, 2, 3, 4, 5, 6, 7, 56 8, 9,10,11,12,13,14,15, 57 16,17,18,19,20,21,22,23, 58 24,25,26,27,28,29,30,31, 59 32,33,34,35,36,37,38,39, 60 40,41,42,43,44,45,46,47, 61 48,49,50,51,52,53,54,55, 62 56,57,58,59,60,61,62,63 63}; 64 65const int vl_zscan_normal[] = 66{ 67 /* Zig-Zag scan pattern */ 68 0, 1, 8,16, 9, 2, 3,10, 69 17,24,32,25,18,11, 4, 5, 70 12,19,26,33,40,48,41,34, 71 27,20,13, 6, 7,14,21,28, 72 35,42,49,56,57,50,43,36, 73 29,22,15,23,30,37,44,51, 74 58,59,52,45,38,31,39,46, 75 53,60,61,54,47,55,62,63 76}; 77 78const int vl_zscan_alternate[] = 79{ 80 /* Alternate scan pattern */ 81 0, 8,16,24, 1, 9, 2,10, 82 17,25,32,40,48,56,57,49, 83 41,33,26,18, 3,11, 4,12, 84 19,27,34,42,50,58,35,43, 85 51,59,20,28, 5,13, 6,14, 86 21,29,36,44,52,60,37,45, 87 53,61,22,30, 7,15,23,31, 88 38,46,54,62,39,47,55,63 89}; 90 91static void * 92create_vert_shader(struct vl_zscan *zscan) 93{ 94 struct ureg_program *shader; 95 96 struct ureg_src scale; 97 struct ureg_src vrect, vpos, block_num; 98 99 struct ureg_dst tmp; 100 struct ureg_dst o_vpos; 101 struct ureg_dst *o_vtex; 102 103 signed i; 104 105 shader = ureg_create(TGSI_PROCESSOR_VERTEX); 106 if (!shader) 107 return NULL; 108 109 o_vtex = MALLOC(zscan->num_channels * sizeof(struct ureg_dst)); 110 111 scale = ureg_imm2f(shader, 112 (float)BLOCK_WIDTH / zscan->buffer_width, 113 (float)BLOCK_HEIGHT / zscan->buffer_height); 114 115 vrect = ureg_DECL_vs_input(shader, VS_I_RECT); 116 vpos = ureg_DECL_vs_input(shader, VS_I_VPOS); 117 block_num = ureg_DECL_vs_input(shader, VS_I_BLOCK_NUM); 118 119 tmp = ureg_DECL_temporary(shader); 120 121 o_vpos = ureg_DECL_output(shader, TGSI_SEMANTIC_POSITION, VS_O_VPOS); 122 123 for (i = 0; i < zscan->num_channels; ++i) 124 o_vtex[i] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_VTEX + i); 125 126 /* 127 * o_vpos.xy = (vpos + vrect) * scale 128 * o_vpos.zw = 1.0f 129 * 130 * tmp.xy = InstanceID / blocks_per_line 131 * tmp.x = frac(tmp.x) 132 * tmp.y = floor(tmp.y) 133 * 134 * o_vtex.x = vrect.x / blocks_per_line + tmp.x 135 * o_vtex.y = vrect.y 136 * o_vtex.z = tmp.z * blocks_per_line / blocks_total 137 */ 138 ureg_ADD(shader, ureg_writemask(tmp, TGSI_WRITEMASK_XY), vpos, vrect); 139 ureg_MUL(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_XY), ureg_src(tmp), scale); 140 ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_ZW), ureg_imm1f(shader, 1.0f)); 141 142 ureg_MUL(shader, ureg_writemask(tmp, TGSI_WRITEMASK_XW), ureg_scalar(block_num, TGSI_SWIZZLE_X), 143 ureg_imm1f(shader, 1.0f / zscan->blocks_per_line)); 144 145 ureg_FRC(shader, ureg_writemask(tmp, TGSI_WRITEMASK_Y), ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_X)); 146 ureg_FLR(shader, ureg_writemask(tmp, TGSI_WRITEMASK_W), ureg_src(tmp)); 147 148 for (i = 0; i < zscan->num_channels; ++i) { 149 ureg_ADD(shader, ureg_writemask(tmp, TGSI_WRITEMASK_X), ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_Y), 150 ureg_imm1f(shader, 1.0f / (zscan->blocks_per_line * BLOCK_WIDTH) * (i - (signed)zscan->num_channels / 2))); 151 152 ureg_MAD(shader, ureg_writemask(o_vtex[i], TGSI_WRITEMASK_X), vrect, 153 ureg_imm1f(shader, 1.0f / zscan->blocks_per_line), ureg_src(tmp)); 154 ureg_MOV(shader, ureg_writemask(o_vtex[i], TGSI_WRITEMASK_Y), vrect); 155 ureg_MOV(shader, ureg_writemask(o_vtex[i], TGSI_WRITEMASK_Z), vpos); 156 ureg_MUL(shader, ureg_writemask(o_vtex[i], TGSI_WRITEMASK_W), ureg_src(tmp), 157 ureg_imm1f(shader, (float)zscan->blocks_per_line / zscan->blocks_total)); 158 } 159 160 ureg_release_temporary(shader, tmp); 161 ureg_END(shader); 162 163 FREE(o_vtex); 164 165 return ureg_create_shader_and_destroy(shader, zscan->pipe); 166} 167 168static void * 169create_frag_shader(struct vl_zscan *zscan) 170{ 171 struct ureg_program *shader; 172 struct ureg_src *vtex; 173 174 struct ureg_src samp_src, samp_scan, samp_quant; 175 176 struct ureg_dst *tmp; 177 struct ureg_dst quant, fragment; 178 179 unsigned i; 180 181 shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); 182 if (!shader) 183 return NULL; 184 185 vtex = MALLOC(zscan->num_channels * sizeof(struct ureg_src)); 186 tmp = MALLOC(zscan->num_channels * sizeof(struct ureg_dst)); 187 188 for (i = 0; i < zscan->num_channels; ++i) 189 vtex[i] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_VTEX + i, TGSI_INTERPOLATE_LINEAR); 190 191 samp_src = ureg_DECL_sampler(shader, 0); 192 samp_scan = ureg_DECL_sampler(shader, 1); 193 samp_quant = ureg_DECL_sampler(shader, 2); 194 195 for (i = 0; i < zscan->num_channels; ++i) 196 tmp[i] = ureg_DECL_temporary(shader); 197 quant = ureg_DECL_temporary(shader); 198 199 fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0); 200 201 /* 202 * tmp.x = tex(vtex, 1) 203 * tmp.y = vtex.z 204 * fragment = tex(tmp, 0) * quant 205 */ 206 for (i = 0; i < zscan->num_channels; ++i) 207 ureg_TEX(shader, ureg_writemask(tmp[i], TGSI_WRITEMASK_X), TGSI_TEXTURE_2D, vtex[i], samp_scan); 208 209 for (i = 0; i < zscan->num_channels; ++i) 210 ureg_MOV(shader, ureg_writemask(tmp[i], TGSI_WRITEMASK_Y), ureg_scalar(vtex[i], TGSI_SWIZZLE_W)); 211 212 for (i = 0; i < zscan->num_channels; ++i) { 213 ureg_TEX(shader, ureg_writemask(tmp[0], TGSI_WRITEMASK_X << i), TGSI_TEXTURE_2D, ureg_src(tmp[i]), samp_src); 214 ureg_TEX(shader, ureg_writemask(quant, TGSI_WRITEMASK_X << i), TGSI_TEXTURE_3D, vtex[i], samp_quant); 215 } 216 217 ureg_MUL(shader, quant, ureg_src(quant), ureg_imm1f(shader, 16.0f)); 218 ureg_MUL(shader, fragment, ureg_src(tmp[0]), ureg_src(quant)); 219 220 for (i = 0; i < zscan->num_channels; ++i) 221 ureg_release_temporary(shader, tmp[i]); 222 ureg_END(shader); 223 224 FREE(vtex); 225 FREE(tmp); 226 227 return ureg_create_shader_and_destroy(shader, zscan->pipe); 228} 229 230static bool 231init_shaders(struct vl_zscan *zscan) 232{ 233 assert(zscan); 234 235 zscan->vs = create_vert_shader(zscan); 236 if (!zscan->vs) 237 goto error_vs; 238 239 zscan->fs = create_frag_shader(zscan); 240 if (!zscan->fs) 241 goto error_fs; 242 243 return true; 244 245error_fs: 246 zscan->pipe->delete_vs_state(zscan->pipe, zscan->vs); 247 248error_vs: 249 return false; 250} 251 252static void 253cleanup_shaders(struct vl_zscan *zscan) 254{ 255 assert(zscan); 256 257 zscan->pipe->delete_vs_state(zscan->pipe, zscan->vs); 258 zscan->pipe->delete_fs_state(zscan->pipe, zscan->fs); 259} 260 261static bool 262init_state(struct vl_zscan *zscan) 263{ 264 struct pipe_blend_state blend; 265 struct pipe_rasterizer_state rs_state; 266 struct pipe_sampler_state sampler; 267 unsigned i; 268 269 assert(zscan); 270 271 memset(&rs_state, 0, sizeof(rs_state)); 272 rs_state.gl_rasterization_rules = true; 273 rs_state.depth_clip = 1; 274 zscan->rs_state = zscan->pipe->create_rasterizer_state(zscan->pipe, &rs_state); 275 if (!zscan->rs_state) 276 goto error_rs_state; 277 278 memset(&blend, 0, sizeof blend); 279 280 blend.independent_blend_enable = 0; 281 blend.rt[0].blend_enable = 0; 282 blend.rt[0].rgb_func = PIPE_BLEND_ADD; 283 blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE; 284 blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ONE; 285 blend.rt[0].alpha_func = PIPE_BLEND_ADD; 286 blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE; 287 blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ONE; 288 blend.logicop_enable = 0; 289 blend.logicop_func = PIPE_LOGICOP_CLEAR; 290 /* Needed to allow color writes to FB, even if blending disabled */ 291 blend.rt[0].colormask = PIPE_MASK_RGBA; 292 blend.dither = 0; 293 zscan->blend = zscan->pipe->create_blend_state(zscan->pipe, &blend); 294 if (!zscan->blend) 295 goto error_blend; 296 297 for (i = 0; i < 3; ++i) { 298 memset(&sampler, 0, sizeof(sampler)); 299 sampler.wrap_s = PIPE_TEX_WRAP_REPEAT; 300 sampler.wrap_t = PIPE_TEX_WRAP_REPEAT; 301 sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 302 sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; 303 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 304 sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; 305 sampler.compare_mode = PIPE_TEX_COMPARE_NONE; 306 sampler.compare_func = PIPE_FUNC_ALWAYS; 307 sampler.normalized_coords = 1; 308 zscan->samplers[i] = zscan->pipe->create_sampler_state(zscan->pipe, &sampler); 309 if (!zscan->samplers[i]) 310 goto error_samplers; 311 } 312 313 return true; 314 315error_samplers: 316 for (i = 0; i < 2; ++i) 317 if (zscan->samplers[i]) 318 zscan->pipe->delete_sampler_state(zscan->pipe, zscan->samplers[i]); 319 320 zscan->pipe->delete_rasterizer_state(zscan->pipe, zscan->rs_state); 321 322error_blend: 323 zscan->pipe->delete_blend_state(zscan->pipe, zscan->blend); 324 325error_rs_state: 326 return false; 327} 328 329static void 330cleanup_state(struct vl_zscan *zscan) 331{ 332 unsigned i; 333 334 assert(zscan); 335 336 for (i = 0; i < 3; ++i) 337 zscan->pipe->delete_sampler_state(zscan->pipe, zscan->samplers[i]); 338 339 zscan->pipe->delete_rasterizer_state(zscan->pipe, zscan->rs_state); 340 zscan->pipe->delete_blend_state(zscan->pipe, zscan->blend); 341} 342 343struct pipe_sampler_view * 344vl_zscan_layout(struct pipe_context *pipe, const int layout[64], unsigned blocks_per_line) 345{ 346 const unsigned total_size = blocks_per_line * BLOCK_WIDTH * BLOCK_HEIGHT; 347 348 int patched_layout[64]; 349 350 struct pipe_resource res_tmpl, *res; 351 struct pipe_sampler_view sv_tmpl, *sv; 352 struct pipe_transfer *buf_transfer; 353 unsigned x, y, i, pitch; 354 float *f; 355 356 struct pipe_box rect = 357 { 358 0, 0, 0, 359 BLOCK_WIDTH * blocks_per_line, 360 BLOCK_HEIGHT, 361 1 362 }; 363 364 assert(pipe && layout && blocks_per_line); 365 366 for (i = 0; i < 64; ++i) 367 patched_layout[layout[i]] = i; 368 369 memset(&res_tmpl, 0, sizeof(res_tmpl)); 370 res_tmpl.target = PIPE_TEXTURE_2D; 371 res_tmpl.format = PIPE_FORMAT_R32_FLOAT; 372 res_tmpl.width0 = BLOCK_WIDTH * blocks_per_line; 373 res_tmpl.height0 = BLOCK_HEIGHT; 374 res_tmpl.depth0 = 1; 375 res_tmpl.array_size = 1; 376 res_tmpl.usage = PIPE_USAGE_IMMUTABLE; 377 res_tmpl.bind = PIPE_BIND_SAMPLER_VIEW; 378 379 res = pipe->screen->resource_create(pipe->screen, &res_tmpl); 380 if (!res) 381 goto error_resource; 382 383 buf_transfer = pipe->get_transfer 384 ( 385 pipe, res, 386 0, PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD_RANGE, 387 &rect 388 ); 389 if (!buf_transfer) 390 goto error_transfer; 391 392 pitch = buf_transfer->stride / sizeof(float); 393 394 f = pipe->transfer_map(pipe, buf_transfer); 395 if (!f) 396 goto error_map; 397 398 for (i = 0; i < blocks_per_line; ++i) 399 for (y = 0; y < BLOCK_HEIGHT; ++y) 400 for (x = 0; x < BLOCK_WIDTH; ++x) { 401 float addr = patched_layout[x + y * BLOCK_WIDTH] + 402 i * BLOCK_WIDTH * BLOCK_HEIGHT; 403 404 addr /= total_size; 405 406 f[i * BLOCK_WIDTH + y * pitch + x] = addr; 407 } 408 409 pipe->transfer_unmap(pipe, buf_transfer); 410 pipe->transfer_destroy(pipe, buf_transfer); 411 412 memset(&sv_tmpl, 0, sizeof(sv_tmpl)); 413 u_sampler_view_default_template(&sv_tmpl, res, res->format); 414 sv = pipe->create_sampler_view(pipe, res, &sv_tmpl); 415 pipe_resource_reference(&res, NULL); 416 if (!sv) 417 goto error_map; 418 419 return sv; 420 421error_map: 422 pipe->transfer_destroy(pipe, buf_transfer); 423 424error_transfer: 425 pipe_resource_reference(&res, NULL); 426 427error_resource: 428 return NULL; 429} 430 431bool 432vl_zscan_init(struct vl_zscan *zscan, struct pipe_context *pipe, 433 unsigned buffer_width, unsigned buffer_height, 434 unsigned blocks_per_line, unsigned blocks_total, 435 unsigned num_channels) 436{ 437 assert(zscan && pipe); 438 439 zscan->pipe = pipe; 440 zscan->buffer_width = buffer_width; 441 zscan->buffer_height = buffer_height; 442 zscan->num_channels = num_channels; 443 zscan->blocks_per_line = blocks_per_line; 444 zscan->blocks_total = blocks_total; 445 446 if(!init_shaders(zscan)) 447 return false; 448 449 if(!init_state(zscan)) { 450 cleanup_shaders(zscan); 451 return false; 452 } 453 454 return true; 455} 456 457void 458vl_zscan_cleanup(struct vl_zscan *zscan) 459{ 460 assert(zscan); 461 462 cleanup_shaders(zscan); 463 cleanup_state(zscan); 464} 465 466bool 467vl_zscan_init_buffer(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer, 468 struct pipe_sampler_view *src, struct pipe_surface *dst) 469{ 470 struct pipe_resource res_tmpl, *res; 471 struct pipe_sampler_view sv_tmpl; 472 473 assert(zscan && buffer); 474 475 memset(buffer, 0, sizeof(struct vl_zscan_buffer)); 476 477 pipe_sampler_view_reference(&buffer->src, src); 478 479 buffer->viewport.scale[0] = dst->width; 480 buffer->viewport.scale[1] = dst->height; 481 buffer->viewport.scale[2] = 1; 482 buffer->viewport.scale[3] = 1; 483 buffer->viewport.translate[0] = 0; 484 buffer->viewport.translate[1] = 0; 485 buffer->viewport.translate[2] = 0; 486 buffer->viewport.translate[3] = 0; 487 488 buffer->fb_state.width = dst->width; 489 buffer->fb_state.height = dst->height; 490 buffer->fb_state.nr_cbufs = 1; 491 pipe_surface_reference(&buffer->fb_state.cbufs[0], dst); 492 493 memset(&res_tmpl, 0, sizeof(res_tmpl)); 494 res_tmpl.target = PIPE_TEXTURE_3D; 495 res_tmpl.format = PIPE_FORMAT_R8_UNORM; 496 res_tmpl.width0 = BLOCK_WIDTH * zscan->blocks_per_line; 497 res_tmpl.height0 = BLOCK_HEIGHT; 498 res_tmpl.depth0 = 2; 499 res_tmpl.array_size = 1; 500 res_tmpl.usage = PIPE_USAGE_IMMUTABLE; 501 res_tmpl.bind = PIPE_BIND_SAMPLER_VIEW; 502 503 res = zscan->pipe->screen->resource_create(zscan->pipe->screen, &res_tmpl); 504 if (!res) 505 return false; 506 507 memset(&sv_tmpl, 0, sizeof(sv_tmpl)); 508 u_sampler_view_default_template(&sv_tmpl, res, res->format); 509 sv_tmpl.swizzle_r = sv_tmpl.swizzle_g = sv_tmpl.swizzle_b = sv_tmpl.swizzle_a = TGSI_SWIZZLE_X; 510 buffer->quant = zscan->pipe->create_sampler_view(zscan->pipe, res, &sv_tmpl); 511 pipe_resource_reference(&res, NULL); 512 if (!buffer->quant) 513 return false; 514 515 return true; 516} 517 518void 519vl_zscan_cleanup_buffer(struct vl_zscan_buffer *buffer) 520{ 521 assert(buffer); 522 523 pipe_sampler_view_reference(&buffer->src, NULL); 524 pipe_sampler_view_reference(&buffer->layout, NULL); 525 pipe_sampler_view_reference(&buffer->quant, NULL); 526 pipe_surface_reference(&buffer->fb_state.cbufs[0], NULL); 527} 528 529void 530vl_zscan_set_layout(struct vl_zscan_buffer *buffer, struct pipe_sampler_view *layout) 531{ 532 assert(buffer); 533 assert(layout); 534 535 pipe_sampler_view_reference(&buffer->layout, layout); 536} 537 538void 539vl_zscan_upload_quant(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer, 540 const uint8_t matrix[64], bool intra) 541{ 542 struct pipe_context *pipe; 543 struct pipe_transfer *buf_transfer; 544 unsigned x, y, i, pitch; 545 uint8_t *data; 546 547 struct pipe_box rect = 548 { 549 0, 0, intra ? 1 : 0, 550 BLOCK_WIDTH, 551 BLOCK_HEIGHT, 552 1 553 }; 554 555 assert(buffer); 556 assert(matrix); 557 558 pipe = zscan->pipe; 559 560 rect.width *= zscan->blocks_per_line; 561 562 buf_transfer = pipe->get_transfer 563 ( 564 pipe, buffer->quant->texture, 565 0, PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD_RANGE, 566 &rect 567 ); 568 if (!buf_transfer) 569 goto error_transfer; 570 571 pitch = buf_transfer->stride; 572 573 data = pipe->transfer_map(pipe, buf_transfer); 574 if (!data) 575 goto error_map; 576 577 for (i = 0; i < zscan->blocks_per_line; ++i) 578 for (y = 0; y < BLOCK_HEIGHT; ++y) 579 for (x = 0; x < BLOCK_WIDTH; ++x) 580 data[i * BLOCK_WIDTH + y * pitch + x] = matrix[x + y * BLOCK_WIDTH]; 581 582 pipe->transfer_unmap(pipe, buf_transfer); 583 584error_map: 585 pipe->transfer_destroy(pipe, buf_transfer); 586 587error_transfer: 588 return; 589} 590 591void 592vl_zscan_render(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer, unsigned num_instances) 593{ 594 assert(buffer); 595 596 zscan->pipe->bind_rasterizer_state(zscan->pipe, zscan->rs_state); 597 zscan->pipe->bind_blend_state(zscan->pipe, zscan->blend); 598 zscan->pipe->bind_fragment_sampler_states(zscan->pipe, 3, zscan->samplers); 599 zscan->pipe->set_framebuffer_state(zscan->pipe, &buffer->fb_state); 600 zscan->pipe->set_viewport_state(zscan->pipe, &buffer->viewport); 601 zscan->pipe->set_fragment_sampler_views(zscan->pipe, 3, &buffer->src); 602 zscan->pipe->bind_vs_state(zscan->pipe, zscan->vs); 603 zscan->pipe->bind_fs_state(zscan->pipe, zscan->fs); 604 util_draw_arrays_instanced(zscan->pipe, PIPE_PRIM_QUADS, 0, 4, 0, num_instances); 605} 606