1 /************************************************************************** 2 * 3 * Copyright 2011 Christian Knig 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 #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 46 enum VS_OUTPUT 47 { 48 VS_O_VPOS = 0, 49 VS_O_VTEX = 0 50 }; 51 52 const int vl_zscan_normal_16[] = 53 { 54 /* Zig-Zag scan pattern */ 55 0, 1, 4, 8, 5, 2, 3, 6, 56 9,12,13,10, 7,11,14,15 57 }; 58 59 const int vl_zscan_linear[] = 60 { 61 /* Linear scan pattern */ 62 0, 1, 2, 3, 4, 5, 6, 7, 63 8, 9,10,11,12,13,14,15, 64 16,17,18,19,20,21,22,23, 65 24,25,26,27,28,29,30,31, 66 32,33,34,35,36,37,38,39, 67 40,41,42,43,44,45,46,47, 68 48,49,50,51,52,53,54,55, 69 56,57,58,59,60,61,62,63 70 }; 71 72 const int vl_zscan_normal[] = 73 { 74 /* Zig-Zag scan pattern */ 75 0, 1, 8,16, 9, 2, 3,10, 76 17,24,32,25,18,11, 4, 5, 77 12,19,26,33,40,48,41,34, 78 27,20,13, 6, 7,14,21,28, 79 35,42,49,56,57,50,43,36, 80 29,22,15,23,30,37,44,51, 81 58,59,52,45,38,31,39,46, 82 53,60,61,54,47,55,62,63 83 }; 84 85 const int vl_zscan_alternate[] = 86 { 87 /* Alternate scan pattern */ 88 0, 8,16,24, 1, 9, 2,10, 89 17,25,32,40,48,56,57,49, 90 41,33,26,18, 3,11, 4,12, 91 19,27,34,42,50,58,35,43, 92 51,59,20,28, 5,13, 6,14, 93 21,29,36,44,52,60,37,45, 94 53,61,22,30, 7,15,23,31, 95 38,46,54,62,39,47,55,63 96 }; 97 98 static void * 99 create_vert_shader(struct vl_zscan *zscan) 100 { 101 struct ureg_program *shader; 102 struct ureg_src scale; 103 struct ureg_src vrect, vpos, block_num; 104 struct ureg_dst tmp; 105 struct ureg_dst o_vpos; 106 struct ureg_dst *o_vtex; 107 unsigned i; 108 109 shader = ureg_create(PIPE_SHADER_VERTEX); 110 if (!shader) 111 return NULL; 112 113 o_vtex = MALLOC(zscan->num_channels * sizeof(struct ureg_dst)); 114 115 scale = ureg_imm2f(shader, 116 (float)VL_BLOCK_WIDTH / zscan->buffer_width, 117 (float)VL_BLOCK_HEIGHT / zscan->buffer_height); 118 119 vrect = ureg_DECL_vs_input(shader, VS_I_RECT); 120 vpos = ureg_DECL_vs_input(shader, VS_I_VPOS); 121 block_num = ureg_DECL_vs_input(shader, VS_I_BLOCK_NUM); 122 123 tmp = ureg_DECL_temporary(shader); 124 125 o_vpos = ureg_DECL_output(shader, TGSI_SEMANTIC_POSITION, VS_O_VPOS); 126 127 for (i = 0; i < zscan->num_channels; ++i) 128 o_vtex[i] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_VTEX + i); 129 130 /* 131 * o_vpos.xy = (vpos + vrect) * scale 132 * o_vpos.zw = 1.0f 133 * 134 * tmp.xy = InstanceID / blocks_per_line 135 * tmp.x = frac(tmp.x) 136 * tmp.y = floor(tmp.y) 137 * 138 * o_vtex.x = vrect.x / blocks_per_line + tmp.x 139 * o_vtex.y = vrect.y 140 * o_vtex.z = tmp.z * blocks_per_line / blocks_total 141 */ 142 ureg_ADD(shader, ureg_writemask(tmp, TGSI_WRITEMASK_XY), vpos, vrect); 143 ureg_MUL(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_XY), ureg_src(tmp), scale); 144 ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_ZW), ureg_imm1f(shader, 1.0f)); 145 146 ureg_MUL(shader, ureg_writemask(tmp, TGSI_WRITEMASK_XW), ureg_scalar(block_num, TGSI_SWIZZLE_X), 147 ureg_imm1f(shader, 1.0f / zscan->blocks_per_line)); 148 149 ureg_FRC(shader, ureg_writemask(tmp, TGSI_WRITEMASK_Y), ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_X)); 150 ureg_FLR(shader, ureg_writemask(tmp, TGSI_WRITEMASK_W), ureg_src(tmp)); 151 152 for (i = 0; i < zscan->num_channels; ++i) { 153 ureg_ADD(shader, ureg_writemask(tmp, TGSI_WRITEMASK_X), ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_Y), 154 ureg_imm1f(shader, 1.0f / (zscan->blocks_per_line * VL_BLOCK_WIDTH) 155 * ((signed)i - (signed)zscan->num_channels / 2))); 156 157 ureg_MAD(shader, ureg_writemask(o_vtex[i], TGSI_WRITEMASK_X), vrect, 158 ureg_imm1f(shader, 1.0f / zscan->blocks_per_line), ureg_src(tmp)); 159 ureg_MOV(shader, ureg_writemask(o_vtex[i], TGSI_WRITEMASK_Y), vrect); 160 ureg_MOV(shader, ureg_writemask(o_vtex[i], TGSI_WRITEMASK_Z), vpos); 161 ureg_MUL(shader, ureg_writemask(o_vtex[i], TGSI_WRITEMASK_W), ureg_src(tmp), 162 ureg_imm1f(shader, (float)zscan->blocks_per_line / zscan->blocks_total)); 163 } 164 165 ureg_release_temporary(shader, tmp); 166 ureg_END(shader); 167 168 FREE(o_vtex); 169 170 return ureg_create_shader_and_destroy(shader, zscan->pipe); 171 } 172 173 static void * 174 create_frag_shader(struct vl_zscan *zscan) 175 { 176 struct ureg_program *shader; 177 struct ureg_src *vtex; 178 179 struct ureg_src samp_src, samp_scan, samp_quant; 180 181 struct ureg_dst *tmp; 182 struct ureg_dst quant, fragment; 183 184 unsigned i; 185 186 shader = ureg_create(PIPE_SHADER_FRAGMENT); 187 if (!shader) 188 return NULL; 189 190 vtex = MALLOC(zscan->num_channels * sizeof(struct ureg_src)); 191 tmp = MALLOC(zscan->num_channels * sizeof(struct ureg_dst)); 192 193 for (i = 0; i < zscan->num_channels; ++i) 194 vtex[i] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_VTEX + i, TGSI_INTERPOLATE_LINEAR); 195 196 samp_src = ureg_DECL_sampler(shader, 0); 197 samp_scan = ureg_DECL_sampler(shader, 1); 198 samp_quant = ureg_DECL_sampler(shader, 2); 199 200 for (i = 0; i < zscan->num_channels; ++i) 201 tmp[i] = ureg_DECL_temporary(shader); 202 quant = ureg_DECL_temporary(shader); 203 204 fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0); 205 206 /* 207 * tmp.x = tex(vtex, 1) 208 * tmp.y = vtex.z 209 * fragment = tex(tmp, 0) * quant 210 */ 211 for (i = 0; i < zscan->num_channels; ++i) 212 ureg_TEX(shader, ureg_writemask(tmp[i], TGSI_WRITEMASK_X), TGSI_TEXTURE_2D, vtex[i], samp_scan); 213 214 for (i = 0; i < zscan->num_channels; ++i) 215 ureg_MOV(shader, ureg_writemask(tmp[i], TGSI_WRITEMASK_Y), ureg_scalar(vtex[i], TGSI_SWIZZLE_W)); 216 217 for (i = 0; i < zscan->num_channels; ++i) { 218 ureg_TEX(shader, ureg_writemask(tmp[0], TGSI_WRITEMASK_X << i), TGSI_TEXTURE_2D, ureg_src(tmp[i]), samp_src); 219 ureg_TEX(shader, ureg_writemask(quant, TGSI_WRITEMASK_X << i), TGSI_TEXTURE_3D, vtex[i], samp_quant); 220 } 221 222 ureg_MUL(shader, quant, ureg_src(quant), ureg_imm1f(shader, 16.0f)); 223 ureg_MUL(shader, fragment, ureg_src(tmp[0]), ureg_src(quant)); 224 225 for (i = 0; i < zscan->num_channels; ++i) 226 ureg_release_temporary(shader, tmp[i]); 227 ureg_END(shader); 228 229 FREE(vtex); 230 FREE(tmp); 231 232 return ureg_create_shader_and_destroy(shader, zscan->pipe); 233 } 234 235 static bool 236 init_shaders(struct vl_zscan *zscan) 237 { 238 assert(zscan); 239 240 zscan->vs = create_vert_shader(zscan); 241 if (!zscan->vs) 242 goto error_vs; 243 244 zscan->fs = create_frag_shader(zscan); 245 if (!zscan->fs) 246 goto error_fs; 247 248 return true; 249 250 error_fs: 251 zscan->pipe->delete_vs_state(zscan->pipe, zscan->vs); 252 253 error_vs: 254 return false; 255 } 256 257 static void 258 cleanup_shaders(struct vl_zscan *zscan) 259 { 260 assert(zscan); 261 262 zscan->pipe->delete_vs_state(zscan->pipe, zscan->vs); 263 zscan->pipe->delete_fs_state(zscan->pipe, zscan->fs); 264 } 265 266 static bool 267 init_state(struct vl_zscan *zscan) 268 { 269 struct pipe_blend_state blend; 270 struct pipe_rasterizer_state rs_state; 271 struct pipe_sampler_state sampler; 272 unsigned i; 273 274 assert(zscan); 275 276 memset(&rs_state, 0, sizeof(rs_state)); 277 rs_state.half_pixel_center = true; 278 rs_state.bottom_edge_rule = true; 279 rs_state.depth_clip = 1; 280 zscan->rs_state = zscan->pipe->create_rasterizer_state(zscan->pipe, &rs_state); 281 if (!zscan->rs_state) 282 goto error_rs_state; 283 284 memset(&blend, 0, sizeof blend); 285 286 blend.independent_blend_enable = 0; 287 blend.rt[0].blend_enable = 0; 288 blend.rt[0].rgb_func = PIPE_BLEND_ADD; 289 blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE; 290 blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ONE; 291 blend.rt[0].alpha_func = PIPE_BLEND_ADD; 292 blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE; 293 blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ONE; 294 blend.logicop_enable = 0; 295 blend.logicop_func = PIPE_LOGICOP_CLEAR; 296 /* Needed to allow color writes to FB, even if blending disabled */ 297 blend.rt[0].colormask = PIPE_MASK_RGBA; 298 blend.dither = 0; 299 zscan->blend = zscan->pipe->create_blend_state(zscan->pipe, &blend); 300 if (!zscan->blend) 301 goto error_blend; 302 303 for (i = 0; i < 3; ++i) { 304 memset(&sampler, 0, sizeof(sampler)); 305 sampler.wrap_s = PIPE_TEX_WRAP_REPEAT; 306 sampler.wrap_t = PIPE_TEX_WRAP_REPEAT; 307 sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 308 sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; 309 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 310 sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; 311 sampler.compare_mode = PIPE_TEX_COMPARE_NONE; 312 sampler.compare_func = PIPE_FUNC_ALWAYS; 313 sampler.normalized_coords = 1; 314 zscan->samplers[i] = zscan->pipe->create_sampler_state(zscan->pipe, &sampler); 315 if (!zscan->samplers[i]) 316 goto error_samplers; 317 } 318 319 return true; 320 321 error_samplers: 322 for (i = 0; i < 2; ++i) 323 if (zscan->samplers[i]) 324 zscan->pipe->delete_sampler_state(zscan->pipe, zscan->samplers[i]); 325 326 zscan->pipe->delete_rasterizer_state(zscan->pipe, zscan->rs_state); 327 328 error_blend: 329 zscan->pipe->delete_blend_state(zscan->pipe, zscan->blend); 330 331 error_rs_state: 332 return false; 333 } 334 335 static void 336 cleanup_state(struct vl_zscan *zscan) 337 { 338 unsigned i; 339 340 assert(zscan); 341 342 for (i = 0; i < 3; ++i) 343 zscan->pipe->delete_sampler_state(zscan->pipe, zscan->samplers[i]); 344 345 zscan->pipe->delete_rasterizer_state(zscan->pipe, zscan->rs_state); 346 zscan->pipe->delete_blend_state(zscan->pipe, zscan->blend); 347 } 348 349 struct pipe_sampler_view * 350 vl_zscan_layout(struct pipe_context *pipe, const int layout[64], unsigned blocks_per_line) 351 { 352 const unsigned total_size = blocks_per_line * VL_BLOCK_WIDTH * VL_BLOCK_HEIGHT; 353 354 int patched_layout[64]; 355 356 struct pipe_resource res_tmpl, *res; 357 struct pipe_sampler_view sv_tmpl, *sv; 358 struct pipe_transfer *buf_transfer; 359 unsigned x, y, i, pitch; 360 float *f; 361 362 struct pipe_box rect = 363 { 364 0, 0, 0, 365 VL_BLOCK_WIDTH * blocks_per_line, 366 VL_BLOCK_HEIGHT, 367 1 368 }; 369 370 assert(pipe && layout && blocks_per_line); 371 372 for (i = 0; i < 64; ++i) 373 patched_layout[layout[i]] = i; 374 375 memset(&res_tmpl, 0, sizeof(res_tmpl)); 376 res_tmpl.target = PIPE_TEXTURE_2D; 377 res_tmpl.format = PIPE_FORMAT_R32_FLOAT; 378 res_tmpl.width0 = VL_BLOCK_WIDTH * blocks_per_line; 379 res_tmpl.height0 = VL_BLOCK_HEIGHT; 380 res_tmpl.depth0 = 1; 381 res_tmpl.array_size = 1; 382 res_tmpl.usage = PIPE_USAGE_IMMUTABLE; 383 res_tmpl.bind = PIPE_BIND_SAMPLER_VIEW; 384 385 res = pipe->screen->resource_create(pipe->screen, &res_tmpl); 386 if (!res) 387 goto error_resource; 388 389 f = pipe->transfer_map(pipe, res, 390 0, PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD_RANGE, 391 &rect, &buf_transfer); 392 if (!f) 393 goto error_map; 394 395 pitch = buf_transfer->stride / sizeof(float); 396 397 for (i = 0; i < blocks_per_line; ++i) 398 for (y = 0; y < VL_BLOCK_HEIGHT; ++y) 399 for (x = 0; x < VL_BLOCK_WIDTH; ++x) { 400 float addr = patched_layout[x + y * VL_BLOCK_WIDTH] + 401 i * VL_BLOCK_WIDTH * VL_BLOCK_HEIGHT; 402 403 addr /= total_size; 404 405 f[i * VL_BLOCK_WIDTH + y * pitch + x] = addr; 406 } 407 408 pipe->transfer_unmap(pipe, buf_transfer); 409 410 memset(&sv_tmpl, 0, sizeof(sv_tmpl)); 411 u_sampler_view_default_template(&sv_tmpl, res, res->format); 412 sv = pipe->create_sampler_view(pipe, res, &sv_tmpl); 413 pipe_resource_reference(&res, NULL); 414 if (!sv) 415 goto error_map; 416 417 return sv; 418 419 error_map: 420 pipe_resource_reference(&res, NULL); 421 422 error_resource: 423 return NULL; 424 } 425 426 bool 427 vl_zscan_init(struct vl_zscan *zscan, struct pipe_context *pipe, 428 unsigned buffer_width, unsigned buffer_height, 429 unsigned blocks_per_line, unsigned blocks_total, 430 unsigned num_channels) 431 { 432 assert(zscan && pipe); 433 434 zscan->pipe = pipe; 435 zscan->buffer_width = buffer_width; 436 zscan->buffer_height = buffer_height; 437 zscan->num_channels = num_channels; 438 zscan->blocks_per_line = blocks_per_line; 439 zscan->blocks_total = blocks_total; 440 441 if(!init_shaders(zscan)) 442 return false; 443 444 if(!init_state(zscan)) { 445 cleanup_shaders(zscan); 446 return false; 447 } 448 449 return true; 450 } 451 452 void 453 vl_zscan_cleanup(struct vl_zscan *zscan) 454 { 455 assert(zscan); 456 457 cleanup_shaders(zscan); 458 cleanup_state(zscan); 459 } 460 461 bool 462 vl_zscan_init_buffer(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer, 463 struct pipe_sampler_view *src, struct pipe_surface *dst) 464 { 465 struct pipe_resource res_tmpl, *res; 466 struct pipe_sampler_view sv_tmpl; 467 468 assert(zscan && buffer); 469 470 memset(buffer, 0, sizeof(struct vl_zscan_buffer)); 471 472 pipe_sampler_view_reference(&buffer->src, src); 473 474 buffer->viewport.scale[0] = dst->width; 475 buffer->viewport.scale[1] = dst->height; 476 buffer->viewport.scale[2] = 1; 477 buffer->viewport.translate[0] = 0; 478 buffer->viewport.translate[1] = 0; 479 buffer->viewport.translate[2] = 0; 480 481 buffer->fb_state.width = dst->width; 482 buffer->fb_state.height = dst->height; 483 buffer->fb_state.nr_cbufs = 1; 484 pipe_surface_reference(&buffer->fb_state.cbufs[0], dst); 485 486 memset(&res_tmpl, 0, sizeof(res_tmpl)); 487 res_tmpl.target = PIPE_TEXTURE_3D; 488 res_tmpl.format = PIPE_FORMAT_R8_UNORM; 489 res_tmpl.width0 = VL_BLOCK_WIDTH * zscan->blocks_per_line; 490 res_tmpl.height0 = VL_BLOCK_HEIGHT; 491 res_tmpl.depth0 = 2; 492 res_tmpl.array_size = 1; 493 res_tmpl.usage = PIPE_USAGE_IMMUTABLE; 494 res_tmpl.bind = PIPE_BIND_SAMPLER_VIEW; 495 496 res = zscan->pipe->screen->resource_create(zscan->pipe->screen, &res_tmpl); 497 if (!res) 498 return false; 499 500 memset(&sv_tmpl, 0, sizeof(sv_tmpl)); 501 u_sampler_view_default_template(&sv_tmpl, res, res->format); 502 sv_tmpl.swizzle_r = sv_tmpl.swizzle_g = sv_tmpl.swizzle_b = sv_tmpl.swizzle_a = TGSI_SWIZZLE_X; 503 buffer->quant = zscan->pipe->create_sampler_view(zscan->pipe, res, &sv_tmpl); 504 pipe_resource_reference(&res, NULL); 505 if (!buffer->quant) 506 return false; 507 508 return true; 509 } 510 511 void 512 vl_zscan_cleanup_buffer(struct vl_zscan_buffer *buffer) 513 { 514 assert(buffer); 515 516 pipe_sampler_view_reference(&buffer->src, NULL); 517 pipe_sampler_view_reference(&buffer->layout, NULL); 518 pipe_sampler_view_reference(&buffer->quant, NULL); 519 pipe_surface_reference(&buffer->fb_state.cbufs[0], NULL); 520 } 521 522 void 523 vl_zscan_set_layout(struct vl_zscan_buffer *buffer, struct pipe_sampler_view *layout) 524 { 525 assert(buffer); 526 assert(layout); 527 528 pipe_sampler_view_reference(&buffer->layout, layout); 529 } 530 531 void 532 vl_zscan_upload_quant(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer, 533 const uint8_t matrix[64], bool intra) 534 { 535 struct pipe_context *pipe; 536 struct pipe_transfer *buf_transfer; 537 unsigned x, y, i, pitch; 538 uint8_t *data; 539 540 struct pipe_box rect = 541 { 542 0, 0, intra ? 1 : 0, 543 VL_BLOCK_WIDTH, 544 VL_BLOCK_HEIGHT, 545 1 546 }; 547 548 assert(buffer); 549 assert(matrix); 550 551 pipe = zscan->pipe; 552 553 rect.width *= zscan->blocks_per_line; 554 555 data = pipe->transfer_map(pipe, buffer->quant->texture, 556 0, PIPE_TRANSFER_WRITE | 557 PIPE_TRANSFER_DISCARD_RANGE, 558 &rect, &buf_transfer); 559 if (!data) 560 return; 561 562 pitch = buf_transfer->stride; 563 564 for (i = 0; i < zscan->blocks_per_line; ++i) 565 for (y = 0; y < VL_BLOCK_HEIGHT; ++y) 566 for (x = 0; x < VL_BLOCK_WIDTH; ++x) 567 data[i * VL_BLOCK_WIDTH + y * pitch + x] = matrix[x + y * VL_BLOCK_WIDTH]; 568 569 pipe->transfer_unmap(pipe, buf_transfer); 570 } 571 572 void 573 vl_zscan_render(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer, unsigned num_instances) 574 { 575 assert(buffer); 576 577 zscan->pipe->bind_rasterizer_state(zscan->pipe, zscan->rs_state); 578 zscan->pipe->bind_blend_state(zscan->pipe, zscan->blend); 579 zscan->pipe->bind_sampler_states(zscan->pipe, PIPE_SHADER_FRAGMENT, 580 0, 3, zscan->samplers); 581 zscan->pipe->set_framebuffer_state(zscan->pipe, &buffer->fb_state); 582 zscan->pipe->set_viewport_states(zscan->pipe, 0, 1, &buffer->viewport); 583 zscan->pipe->set_sampler_views(zscan->pipe, PIPE_SHADER_FRAGMENT, 584 0, 3, &buffer->src); 585 zscan->pipe->bind_vs_state(zscan->pipe, zscan->vs); 586 zscan->pipe->bind_fs_state(zscan->pipe, zscan->fs); 587 util_draw_arrays_instanced(zscan->pipe, PIPE_PRIM_QUADS, 0, 4, 0, num_instances); 588 } 589
