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/* Authors: Keith Whitwell <keithw@vmware.com> 29 */ 30 31 32#include "draw/draw_context.h" 33#include "util/u_helpers.h" 34#include "util/u_inlines.h" 35#include "util/u_math.h" 36#include "util/u_memory.h" 37#include "util/u_transfer.h" 38#include "tgsi/tgsi_parse.h" 39 40#include "i915_context.h" 41#include "i915_reg.h" 42#include "i915_state_inlines.h" 43#include "i915_fpc.h" 44#include "i915_resource.h" 45#include "i915_state.h" 46 47/* The i915 (and related graphics cores) do not support GL_CLAMP. The 48 * Intel drivers for "other operating systems" implement GL_CLAMP as 49 * GL_CLAMP_TO_EDGE, so the same is done here. 50 */ 51static unsigned 52translate_wrap_mode(unsigned wrap) 53{ 54 switch (wrap) { 55 case PIPE_TEX_WRAP_REPEAT: 56 return TEXCOORDMODE_WRAP; 57 case PIPE_TEX_WRAP_CLAMP: 58 return TEXCOORDMODE_CLAMP_EDGE; /* not quite correct */ 59 case PIPE_TEX_WRAP_CLAMP_TO_EDGE: 60 return TEXCOORDMODE_CLAMP_EDGE; 61 case PIPE_TEX_WRAP_CLAMP_TO_BORDER: 62 return TEXCOORDMODE_CLAMP_BORDER; 63 case PIPE_TEX_WRAP_MIRROR_REPEAT: 64 return TEXCOORDMODE_MIRROR; 65 default: 66 return TEXCOORDMODE_WRAP; 67 } 68} 69 70static unsigned translate_img_filter( unsigned filter ) 71{ 72 switch (filter) { 73 case PIPE_TEX_FILTER_NEAREST: 74 return FILTER_NEAREST; 75 case PIPE_TEX_FILTER_LINEAR: 76 return FILTER_LINEAR; 77 default: 78 assert(0); 79 return FILTER_NEAREST; 80 } 81} 82 83static unsigned translate_mip_filter( unsigned filter ) 84{ 85 switch (filter) { 86 case PIPE_TEX_MIPFILTER_NONE: 87 return MIPFILTER_NONE; 88 case PIPE_TEX_MIPFILTER_NEAREST: 89 return MIPFILTER_NEAREST; 90 case PIPE_TEX_MIPFILTER_LINEAR: 91 return MIPFILTER_LINEAR; 92 default: 93 assert(0); 94 return MIPFILTER_NONE; 95 } 96} 97 98/* None of this state is actually used for anything yet. 99 */ 100static void * 101i915_create_blend_state(struct pipe_context *pipe, 102 const struct pipe_blend_state *blend) 103{ 104 struct i915_blend_state *cso_data = CALLOC_STRUCT( i915_blend_state ); 105 106 { 107 unsigned eqRGB = blend->rt[0].rgb_func; 108 unsigned srcRGB = blend->rt[0].rgb_src_factor; 109 unsigned dstRGB = blend->rt[0].rgb_dst_factor; 110 111 unsigned eqA = blend->rt[0].alpha_func; 112 unsigned srcA = blend->rt[0].alpha_src_factor; 113 unsigned dstA = blend->rt[0].alpha_dst_factor; 114 115 /* Special handling for MIN/MAX filter modes handled at 116 * state_tracker level. 117 */ 118 119 if (srcA != srcRGB || 120 dstA != dstRGB || 121 eqA != eqRGB) { 122 123 cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | 124 IAB_MODIFY_ENABLE | 125 IAB_ENABLE | 126 IAB_MODIFY_FUNC | 127 IAB_MODIFY_SRC_FACTOR | 128 IAB_MODIFY_DST_FACTOR | 129 SRC_ABLND_FACT(i915_translate_blend_factor(srcA)) | 130 DST_ABLND_FACT(i915_translate_blend_factor(dstA)) | 131 (i915_translate_blend_func(eqA) << IAB_FUNC_SHIFT)); 132 } 133 else { 134 cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | 135 IAB_MODIFY_ENABLE | 136 0); 137 } 138 } 139 140 cso_data->modes4 |= (_3DSTATE_MODES_4_CMD | 141 ENABLE_LOGIC_OP_FUNC | 142 LOGIC_OP_FUNC(i915_translate_logic_op(blend->logicop_func))); 143 144 if (blend->logicop_enable) 145 cso_data->LIS5 |= S5_LOGICOP_ENABLE; 146 147 if (blend->dither) 148 cso_data->LIS5 |= S5_COLOR_DITHER_ENABLE; 149 150 /* We potentially do some fixup at emission for non-BGRA targets */ 151 if ((blend->rt[0].colormask & PIPE_MASK_R) == 0) 152 cso_data->LIS5 |= S5_WRITEDISABLE_RED; 153 154 if ((blend->rt[0].colormask & PIPE_MASK_G) == 0) 155 cso_data->LIS5 |= S5_WRITEDISABLE_GREEN; 156 157 if ((blend->rt[0].colormask & PIPE_MASK_B) == 0) 158 cso_data->LIS5 |= S5_WRITEDISABLE_BLUE; 159 160 if ((blend->rt[0].colormask & PIPE_MASK_A) == 0) 161 cso_data->LIS5 |= S5_WRITEDISABLE_ALPHA; 162 163 if (blend->rt[0].blend_enable) { 164 unsigned funcRGB = blend->rt[0].rgb_func; 165 unsigned srcRGB = blend->rt[0].rgb_src_factor; 166 unsigned dstRGB = blend->rt[0].rgb_dst_factor; 167 168 cso_data->LIS6 |= (S6_CBUF_BLEND_ENABLE | 169 SRC_BLND_FACT(i915_translate_blend_factor(srcRGB)) | 170 DST_BLND_FACT(i915_translate_blend_factor(dstRGB)) | 171 (i915_translate_blend_func(funcRGB) << S6_CBUF_BLEND_FUNC_SHIFT)); 172 } 173 174 return cso_data; 175} 176 177static void i915_bind_blend_state(struct pipe_context *pipe, 178 void *blend) 179{ 180 struct i915_context *i915 = i915_context(pipe); 181 182 if (i915->blend == blend) 183 return; 184 185 i915->blend = (struct i915_blend_state*)blend; 186 187 i915->dirty |= I915_NEW_BLEND; 188} 189 190 191static void i915_delete_blend_state(struct pipe_context *pipe, void *blend) 192{ 193 FREE(blend); 194} 195 196static void i915_set_blend_color( struct pipe_context *pipe, 197 const struct pipe_blend_color *blend_color ) 198{ 199 struct i915_context *i915 = i915_context(pipe); 200 201 if (!blend_color) 202 return; 203 204 i915->blend_color = *blend_color; 205 206 i915->dirty |= I915_NEW_BLEND; 207} 208 209static void i915_set_stencil_ref( struct pipe_context *pipe, 210 const struct pipe_stencil_ref *stencil_ref ) 211{ 212 struct i915_context *i915 = i915_context(pipe); 213 214 i915->stencil_ref = *stencil_ref; 215 216 i915->dirty |= I915_NEW_DEPTH_STENCIL; 217} 218 219static void * 220i915_create_sampler_state(struct pipe_context *pipe, 221 const struct pipe_sampler_state *sampler) 222{ 223 struct i915_sampler_state *cso = CALLOC_STRUCT( i915_sampler_state ); 224 const unsigned ws = sampler->wrap_s; 225 const unsigned wt = sampler->wrap_t; 226 const unsigned wr = sampler->wrap_r; 227 unsigned minFilt, magFilt; 228 unsigned mipFilt; 229 230 cso->templ = *sampler; 231 232 mipFilt = translate_mip_filter(sampler->min_mip_filter); 233 minFilt = translate_img_filter( sampler->min_img_filter ); 234 magFilt = translate_img_filter( sampler->mag_img_filter ); 235 236 if (sampler->max_anisotropy > 1) 237 minFilt = magFilt = FILTER_ANISOTROPIC; 238 239 if (sampler->max_anisotropy > 2) { 240 cso->state[0] |= SS2_MAX_ANISO_4; 241 } 242 243 { 244 int b = (int) (sampler->lod_bias * 16.0); 245 b = CLAMP(b, -256, 255); 246 cso->state[0] |= ((b << SS2_LOD_BIAS_SHIFT) & SS2_LOD_BIAS_MASK); 247 } 248 249 /* Shadow: 250 */ 251 if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) 252 { 253 cso->state[0] |= (SS2_SHADOW_ENABLE | 254 i915_translate_shadow_compare_func(sampler->compare_func)); 255 256 minFilt = FILTER_4X4_FLAT; 257 magFilt = FILTER_4X4_FLAT; 258 } 259 260 cso->state[0] |= ((minFilt << SS2_MIN_FILTER_SHIFT) | 261 (mipFilt << SS2_MIP_FILTER_SHIFT) | 262 (magFilt << SS2_MAG_FILTER_SHIFT)); 263 264 cso->state[1] |= 265 ((translate_wrap_mode(ws) << SS3_TCX_ADDR_MODE_SHIFT) | 266 (translate_wrap_mode(wt) << SS3_TCY_ADDR_MODE_SHIFT) | 267 (translate_wrap_mode(wr) << SS3_TCZ_ADDR_MODE_SHIFT)); 268 269 if (sampler->normalized_coords) 270 cso->state[1] |= SS3_NORMALIZED_COORDS; 271 272 { 273 int minlod = (int) (16.0 * sampler->min_lod); 274 int maxlod = (int) (16.0 * sampler->max_lod); 275 minlod = CLAMP(minlod, 0, 16 * 11); 276 maxlod = CLAMP(maxlod, 0, 16 * 11); 277 278 if (minlod > maxlod) 279 maxlod = minlod; 280 281 cso->minlod = minlod; 282 cso->maxlod = maxlod; 283 } 284 285 { 286 ubyte r = float_to_ubyte(sampler->border_color.f[0]); 287 ubyte g = float_to_ubyte(sampler->border_color.f[1]); 288 ubyte b = float_to_ubyte(sampler->border_color.f[2]); 289 ubyte a = float_to_ubyte(sampler->border_color.f[3]); 290 cso->state[2] = I915PACKCOLOR8888(r, g, b, a); 291 } 292 return cso; 293} 294 295static void 296i915_bind_vertex_sampler_states(struct pipe_context *pipe, 297 unsigned start, 298 unsigned num, 299 void **samplers) 300{ 301 struct i915_context *i915 = i915_context(pipe); 302 unsigned i; 303 304 assert(start + num <= ARRAY_SIZE(i915->vertex_samplers)); 305 306 /* Check for no-op */ 307 if (num == i915->num_vertex_samplers && 308 !memcmp(i915->vertex_samplers + start, samplers, 309 num * sizeof(void *))) 310 return; 311 312 for (i = 0; i < num; ++i) 313 i915->vertex_samplers[i + start] = samplers[i]; 314 315 /* find highest non-null samplers[] entry */ 316 { 317 unsigned j = MAX2(i915->num_vertex_samplers, start + num); 318 while (j > 0 && i915->vertex_samplers[j - 1] == NULL) 319 j--; 320 i915->num_vertex_samplers = j; 321 } 322 323 draw_set_samplers(i915->draw, 324 PIPE_SHADER_VERTEX, 325 i915->vertex_samplers, 326 i915->num_vertex_samplers); 327} 328 329 330 331static void i915_bind_fragment_sampler_states(struct pipe_context *pipe, 332 unsigned start, 333 unsigned num, 334 void **samplers) 335{ 336 struct i915_context *i915 = i915_context(pipe); 337 unsigned i; 338 339 /* Check for no-op */ 340 if (num == i915->num_samplers && 341 !memcmp(i915->fragment_sampler + start, samplers, 342 num * sizeof(void *))) 343 return; 344 345 for (i = 0; i < num; ++i) 346 i915->fragment_sampler[i + start] = samplers[i]; 347 348 /* find highest non-null samplers[] entry */ 349 { 350 unsigned j = MAX2(i915->num_samplers, start + num); 351 while (j > 0 && i915->fragment_sampler[j - 1] == NULL) 352 j--; 353 i915->num_samplers = j; 354 } 355 356 i915->dirty |= I915_NEW_SAMPLER; 357} 358 359 360static void 361i915_bind_sampler_states(struct pipe_context *pipe, 362 enum pipe_shader_type shader, 363 unsigned start, unsigned num_samplers, 364 void **samplers) 365{ 366 switch (shader) { 367 case PIPE_SHADER_VERTEX: 368 i915_bind_vertex_sampler_states(pipe, start, num_samplers, samplers); 369 break; 370 case PIPE_SHADER_FRAGMENT: 371 i915_bind_fragment_sampler_states(pipe, start, num_samplers, samplers); 372 break; 373 default: 374 ; 375 } 376} 377 378 379static void i915_delete_sampler_state(struct pipe_context *pipe, 380 void *sampler) 381{ 382 FREE(sampler); 383} 384 385 386/** 387 * Called before drawing VBO to map vertex samplers and hand them to draw 388 */ 389void 390i915_prepare_vertex_sampling(struct i915_context *i915) 391{ 392 struct i915_winsys *iws = i915->iws; 393 unsigned i,j; 394 uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS]; 395 uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS]; 396 uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS]; 397 unsigned num = i915->num_vertex_sampler_views; 398 struct pipe_sampler_view **views = i915->vertex_sampler_views; 399 400 assert(num <= PIPE_MAX_SAMPLERS); 401 if (!num) 402 return; 403 404 for (i = 0; i < PIPE_MAX_SAMPLERS; i++) { 405 struct pipe_sampler_view *view = i < num ? views[i] : NULL; 406 407 if (view) { 408 struct pipe_resource *tex = view->texture; 409 struct i915_texture *i915_tex = i915_texture(tex); 410 ubyte *addr; 411 412 /* We're referencing the texture's internal data, so save a 413 * reference to it. 414 */ 415 pipe_resource_reference(&i915->mapped_vs_tex[i], tex); 416 417 i915->mapped_vs_tex_buffer[i] = i915_tex->buffer; 418 addr = iws->buffer_map(iws, 419 i915_tex->buffer, 420 FALSE /* read only */); 421 422 /* Setup array of mipmap level pointers */ 423 /* FIXME: handle 3D textures? */ 424 for (j = view->u.tex.first_level; j <= tex->last_level; j++) { 425 mip_offsets[j] = i915_texture_offset(i915_tex, j , 0 /* FIXME depth */); 426 row_stride[j] = i915_tex->stride; 427 img_stride[j] = 0; /* FIXME */ 428 } 429 430 draw_set_mapped_texture(i915->draw, 431 PIPE_SHADER_VERTEX, 432 i, 433 tex->width0, tex->height0, tex->depth0, 434 view->u.tex.first_level, tex->last_level, 435 addr, 436 row_stride, img_stride, mip_offsets); 437 } else 438 i915->mapped_vs_tex[i] = NULL; 439 } 440} 441 442void 443i915_cleanup_vertex_sampling(struct i915_context *i915) 444{ 445 struct i915_winsys *iws = i915->iws; 446 unsigned i; 447 for (i = 0; i < ARRAY_SIZE(i915->mapped_vs_tex); i++) { 448 if (i915->mapped_vs_tex_buffer[i]) { 449 iws->buffer_unmap(iws, i915->mapped_vs_tex_buffer[i]); 450 pipe_resource_reference(&i915->mapped_vs_tex[i], NULL); 451 } 452 } 453} 454 455 456 457/** XXX move someday? Or consolidate all these simple state setters 458 * into one file. 459 */ 460 461static void * 462i915_create_depth_stencil_state(struct pipe_context *pipe, 463 const struct pipe_depth_stencil_alpha_state *depth_stencil) 464{ 465 struct i915_depth_stencil_state *cso = CALLOC_STRUCT( i915_depth_stencil_state ); 466 467 { 468 int testmask = depth_stencil->stencil[0].valuemask & 0xff; 469 int writemask = depth_stencil->stencil[0].writemask & 0xff; 470 471 cso->stencil_modes4 |= (_3DSTATE_MODES_4_CMD | 472 ENABLE_STENCIL_TEST_MASK | 473 STENCIL_TEST_MASK(testmask) | 474 ENABLE_STENCIL_WRITE_MASK | 475 STENCIL_WRITE_MASK(writemask)); 476 } 477 478 if (depth_stencil->stencil[0].enabled) { 479 int test = i915_translate_compare_func(depth_stencil->stencil[0].func); 480 int fop = i915_translate_stencil_op(depth_stencil->stencil[0].fail_op); 481 int dfop = i915_translate_stencil_op(depth_stencil->stencil[0].zfail_op); 482 int dpop = i915_translate_stencil_op(depth_stencil->stencil[0].zpass_op); 483 484 cso->stencil_LIS5 |= (S5_STENCIL_TEST_ENABLE | 485 S5_STENCIL_WRITE_ENABLE | 486 (test << S5_STENCIL_TEST_FUNC_SHIFT) | 487 (fop << S5_STENCIL_FAIL_SHIFT) | 488 (dfop << S5_STENCIL_PASS_Z_FAIL_SHIFT) | 489 (dpop << S5_STENCIL_PASS_Z_PASS_SHIFT)); 490 } 491 492 if (depth_stencil->stencil[1].enabled) { 493 int test = i915_translate_compare_func(depth_stencil->stencil[1].func); 494 int fop = i915_translate_stencil_op(depth_stencil->stencil[1].fail_op); 495 int dfop = i915_translate_stencil_op(depth_stencil->stencil[1].zfail_op); 496 int dpop = i915_translate_stencil_op(depth_stencil->stencil[1].zpass_op); 497 int tmask = depth_stencil->stencil[1].valuemask & 0xff; 498 int wmask = depth_stencil->stencil[1].writemask & 0xff; 499 500 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 501 BFO_ENABLE_STENCIL_FUNCS | 502 BFO_ENABLE_STENCIL_TWO_SIDE | 503 BFO_ENABLE_STENCIL_REF | 504 BFO_STENCIL_TWO_SIDE | 505 (test << BFO_STENCIL_TEST_SHIFT) | 506 (fop << BFO_STENCIL_FAIL_SHIFT) | 507 (dfop << BFO_STENCIL_PASS_Z_FAIL_SHIFT) | 508 (dpop << BFO_STENCIL_PASS_Z_PASS_SHIFT)); 509 510 cso->bfo[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS | 511 BFM_ENABLE_STENCIL_TEST_MASK | 512 BFM_ENABLE_STENCIL_WRITE_MASK | 513 (tmask << BFM_STENCIL_TEST_MASK_SHIFT) | 514 (wmask << BFM_STENCIL_WRITE_MASK_SHIFT)); 515 } 516 else { 517 /* This actually disables two-side stencil: The bit set is a 518 * modify-enable bit to indicate we are changing the two-side 519 * setting. Then there is a symbolic zero to show that we are 520 * setting the flag to zero/off. 521 */ 522 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 523 BFO_ENABLE_STENCIL_TWO_SIDE | 524 0); 525 cso->bfo[1] = 0; 526 } 527 528 if (depth_stencil->depth.enabled) { 529 int func = i915_translate_compare_func(depth_stencil->depth.func); 530 531 cso->depth_LIS6 |= (S6_DEPTH_TEST_ENABLE | 532 (func << S6_DEPTH_TEST_FUNC_SHIFT)); 533 534 if (depth_stencil->depth.writemask) 535 cso->depth_LIS6 |= S6_DEPTH_WRITE_ENABLE; 536 } 537 538 if (depth_stencil->alpha.enabled) { 539 int test = i915_translate_compare_func(depth_stencil->alpha.func); 540 ubyte refByte = float_to_ubyte(depth_stencil->alpha.ref_value); 541 542 cso->depth_LIS6 |= (S6_ALPHA_TEST_ENABLE | 543 (test << S6_ALPHA_TEST_FUNC_SHIFT) | 544 (((unsigned) refByte) << S6_ALPHA_REF_SHIFT)); 545 } 546 547 return cso; 548} 549 550static void i915_bind_depth_stencil_state(struct pipe_context *pipe, 551 void *depth_stencil) 552{ 553 struct i915_context *i915 = i915_context(pipe); 554 555 if (i915->depth_stencil == depth_stencil) 556 return; 557 558 i915->depth_stencil = (const struct i915_depth_stencil_state *)depth_stencil; 559 560 i915->dirty |= I915_NEW_DEPTH_STENCIL; 561} 562 563static void i915_delete_depth_stencil_state(struct pipe_context *pipe, 564 void *depth_stencil) 565{ 566 FREE(depth_stencil); 567} 568 569 570static void i915_set_scissor_states( struct pipe_context *pipe, 571 unsigned start_slot, 572 unsigned num_scissors, 573 const struct pipe_scissor_state *scissor ) 574{ 575 struct i915_context *i915 = i915_context(pipe); 576 577 memcpy( &i915->scissor, scissor, sizeof(*scissor) ); 578 i915->dirty |= I915_NEW_SCISSOR; 579} 580 581 582static void i915_set_polygon_stipple( struct pipe_context *pipe, 583 const struct pipe_poly_stipple *stipple ) 584{ 585} 586 587 588 589static void * 590i915_create_fs_state(struct pipe_context *pipe, 591 const struct pipe_shader_state *templ) 592{ 593 struct i915_context *i915 = i915_context(pipe); 594 struct i915_fragment_shader *ifs = CALLOC_STRUCT(i915_fragment_shader); 595 if (!ifs) 596 return NULL; 597 598 ifs->draw_data = draw_create_fragment_shader(i915->draw, templ); 599 ifs->state.tokens = tgsi_dup_tokens(templ->tokens); 600 601 tgsi_scan_shader(templ->tokens, &ifs->info); 602 603 /* The shader's compiled to i915 instructions here */ 604 i915_translate_fragment_program(i915, ifs); 605 606 return ifs; 607} 608 609static void 610i915_bind_fs_state(struct pipe_context *pipe, void *shader) 611{ 612 struct i915_context *i915 = i915_context(pipe); 613 614 if (i915->fs == shader) 615 return; 616 617 i915->fs = (struct i915_fragment_shader*) shader; 618 619 draw_bind_fragment_shader(i915->draw, (i915->fs ? i915->fs->draw_data : NULL)); 620 621 i915->dirty |= I915_NEW_FS; 622} 623 624static 625void i915_delete_fs_state(struct pipe_context *pipe, void *shader) 626{ 627 struct i915_fragment_shader *ifs = (struct i915_fragment_shader *) shader; 628 629 FREE(ifs->decl); 630 ifs->decl = NULL; 631 632 FREE(ifs->program); 633 ifs->program = NULL; 634 FREE((struct tgsi_token *)ifs->state.tokens); 635 ifs->state.tokens = NULL; 636 637 ifs->program_len = 0; 638 ifs->decl_len = 0; 639 640 FREE(ifs); 641} 642 643 644static void * 645i915_create_vs_state(struct pipe_context *pipe, 646 const struct pipe_shader_state *templ) 647{ 648 struct i915_context *i915 = i915_context(pipe); 649 650 /* just pass-through to draw module */ 651 return draw_create_vertex_shader(i915->draw, templ); 652} 653 654static void i915_bind_vs_state(struct pipe_context *pipe, void *shader) 655{ 656 struct i915_context *i915 = i915_context(pipe); 657 658 if (i915->vs == shader) 659 return; 660 661 i915->vs = shader; 662 663 /* just pass-through to draw module */ 664 draw_bind_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 665 666 i915->dirty |= I915_NEW_VS; 667} 668 669static void i915_delete_vs_state(struct pipe_context *pipe, void *shader) 670{ 671 struct i915_context *i915 = i915_context(pipe); 672 673 /* just pass-through to draw module */ 674 draw_delete_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 675} 676 677static void i915_set_constant_buffer(struct pipe_context *pipe, 678 uint shader, uint index, 679 const struct pipe_constant_buffer *cb) 680{ 681 struct i915_context *i915 = i915_context(pipe); 682 struct pipe_resource *buf = cb ? cb->buffer : NULL; 683 unsigned new_num = 0; 684 boolean diff = TRUE; 685 686 /* XXX don't support geom shaders now */ 687 if (shader == PIPE_SHADER_GEOMETRY) 688 return; 689 690 if (cb && cb->user_buffer) { 691 buf = i915_user_buffer_create(pipe->screen, (void *) cb->user_buffer, 692 cb->buffer_size, 693 PIPE_BIND_CONSTANT_BUFFER); 694 } 695 696 /* if we have a new buffer compare it with the old one */ 697 if (buf) { 698 struct i915_buffer *ibuf = i915_buffer(buf); 699 struct pipe_resource *old_buf = i915->constants[shader]; 700 struct i915_buffer *old = old_buf ? i915_buffer(old_buf) : NULL; 701 unsigned old_num = i915->current.num_user_constants[shader]; 702 703 new_num = ibuf->b.b.width0 / 4 * sizeof(float); 704 705 if (old_num == new_num) { 706 if (old_num == 0) 707 diff = FALSE; 708#if 0 709 /* XXX no point in running this code since st/mesa only uses user buffers */ 710 /* Can't compare the buffer data since they are userbuffers */ 711 else if (old && old->free_on_destroy) 712 diff = memcmp(old->data, ibuf->data, ibuf->b.b.width0); 713#else 714 (void)old; 715#endif 716 } 717 } else { 718 diff = i915->current.num_user_constants[shader] != 0; 719 } 720 721 pipe_resource_reference(&i915->constants[shader], buf); 722 i915->current.num_user_constants[shader] = new_num; 723 724 if (diff) 725 i915->dirty |= shader == PIPE_SHADER_VERTEX ? I915_NEW_VS_CONSTANTS : I915_NEW_FS_CONSTANTS; 726 727 if (cb && cb->user_buffer) { 728 pipe_resource_reference(&buf, NULL); 729 } 730} 731 732 733static void i915_set_fragment_sampler_views(struct pipe_context *pipe, 734 unsigned num, 735 struct pipe_sampler_view **views) 736{ 737 struct i915_context *i915 = i915_context(pipe); 738 uint i; 739 740 assert(num <= PIPE_MAX_SAMPLERS); 741 742 /* Check for no-op */ 743 if (num == i915->num_fragment_sampler_views && 744 !memcmp(i915->fragment_sampler_views, views, num * sizeof(struct pipe_sampler_view *))) 745 return; 746 747 for (i = 0; i < num; i++) { 748 /* Note: we're using pipe_sampler_view_release() here to work around 749 * a possible crash when the old view belongs to another context that 750 * was already destroyed. 751 */ 752 pipe_sampler_view_release(pipe, &i915->fragment_sampler_views[i]); 753 pipe_sampler_view_reference(&i915->fragment_sampler_views[i], 754 views[i]); 755 } 756 757 for (i = num; i < i915->num_fragment_sampler_views; i++) 758 pipe_sampler_view_release(pipe, &i915->fragment_sampler_views[i]); 759 760 i915->num_fragment_sampler_views = num; 761 762 i915->dirty |= I915_NEW_SAMPLER_VIEW; 763} 764 765static void 766i915_set_vertex_sampler_views(struct pipe_context *pipe, 767 unsigned num, 768 struct pipe_sampler_view **views) 769{ 770 struct i915_context *i915 = i915_context(pipe); 771 uint i; 772 773 assert(num <= ARRAY_SIZE(i915->vertex_sampler_views)); 774 775 /* Check for no-op */ 776 if (num == i915->num_vertex_sampler_views && 777 !memcmp(i915->vertex_sampler_views, views, num * sizeof(struct pipe_sampler_view *))) { 778 return; 779 } 780 781 for (i = 0; i < ARRAY_SIZE(i915->vertex_sampler_views); i++) { 782 struct pipe_sampler_view *view = i < num ? views[i] : NULL; 783 784 pipe_sampler_view_reference(&i915->vertex_sampler_views[i], view); 785 } 786 787 i915->num_vertex_sampler_views = num; 788 789 draw_set_sampler_views(i915->draw, 790 PIPE_SHADER_VERTEX, 791 i915->vertex_sampler_views, 792 i915->num_vertex_sampler_views); 793} 794 795 796static void 797i915_set_sampler_views(struct pipe_context *pipe, enum pipe_shader_type shader, 798 unsigned start, unsigned num, 799 struct pipe_sampler_view **views) 800{ 801 assert(start == 0); 802 switch (shader) { 803 case PIPE_SHADER_FRAGMENT: 804 i915_set_fragment_sampler_views(pipe, num, views); 805 break; 806 case PIPE_SHADER_VERTEX: 807 i915_set_vertex_sampler_views(pipe, num, views); 808 break; 809 default: 810 ; 811 } 812} 813 814 815struct pipe_sampler_view * 816i915_create_sampler_view_custom(struct pipe_context *pipe, 817 struct pipe_resource *texture, 818 const struct pipe_sampler_view *templ, 819 unsigned width0, 820 unsigned height0) 821{ 822 struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view); 823 824 if (view) { 825 *view = *templ; 826 view->reference.count = 1; 827 view->texture = NULL; 828 pipe_resource_reference(&view->texture, texture); 829 view->context = pipe; 830 } 831 832 return view; 833} 834 835static struct pipe_sampler_view * 836i915_create_sampler_view(struct pipe_context *pipe, 837 struct pipe_resource *texture, 838 const struct pipe_sampler_view *templ) 839{ 840 struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view); 841 842 if (view) { 843 *view = *templ; 844 view->reference.count = 1; 845 view->texture = NULL; 846 pipe_resource_reference(&view->texture, texture); 847 view->context = pipe; 848 } 849 850 return view; 851} 852 853 854static void 855i915_sampler_view_destroy(struct pipe_context *pipe, 856 struct pipe_sampler_view *view) 857{ 858 pipe_resource_reference(&view->texture, NULL); 859 FREE(view); 860} 861 862 863static void i915_set_framebuffer_state(struct pipe_context *pipe, 864 const struct pipe_framebuffer_state *fb) 865{ 866 struct i915_context *i915 = i915_context(pipe); 867 int i; 868 869 i915->framebuffer.width = fb->width; 870 i915->framebuffer.height = fb->height; 871 i915->framebuffer.nr_cbufs = fb->nr_cbufs; 872 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { 873 pipe_surface_reference(&i915->framebuffer.cbufs[i], 874 i < fb->nr_cbufs ? fb->cbufs[i] : NULL); 875 } 876 pipe_surface_reference(&i915->framebuffer.zsbuf, fb->zsbuf); 877 878 i915->dirty |= I915_NEW_FRAMEBUFFER; 879} 880 881 882 883static void i915_set_clip_state( struct pipe_context *pipe, 884 const struct pipe_clip_state *clip ) 885{ 886 struct i915_context *i915 = i915_context(pipe); 887 888 i915->clip = *clip; 889 890 draw_set_clip_state(i915->draw, clip); 891 892 i915->dirty |= I915_NEW_CLIP; 893} 894 895 896 897/* Called when driver state tracker notices changes to the viewport 898 * matrix: 899 */ 900static void i915_set_viewport_states( struct pipe_context *pipe, 901 unsigned start_slot, 902 unsigned num_viewports, 903 const struct pipe_viewport_state *viewport ) 904{ 905 struct i915_context *i915 = i915_context(pipe); 906 907 i915->viewport = *viewport; /* struct copy */ 908 909 /* pass the viewport info to the draw module */ 910 draw_set_viewport_states(i915->draw, start_slot, num_viewports, 911 &i915->viewport); 912 913 i915->dirty |= I915_NEW_VIEWPORT; 914} 915 916 917static void * 918i915_create_rasterizer_state(struct pipe_context *pipe, 919 const struct pipe_rasterizer_state *rasterizer) 920{ 921 struct i915_rasterizer_state *cso = CALLOC_STRUCT( i915_rasterizer_state ); 922 923 cso->templ = *rasterizer; 924 cso->light_twoside = rasterizer->light_twoside; 925 cso->ds[0].u = _3DSTATE_DEPTH_OFFSET_SCALE; 926 cso->ds[1].f = rasterizer->offset_scale; 927 if (rasterizer->poly_stipple_enable) { 928 cso->st |= ST1_ENABLE; 929 } 930 931 if (rasterizer->scissor) 932 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT; 933 else 934 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT; 935 936 switch (rasterizer->cull_face) { 937 case PIPE_FACE_NONE: 938 cso->LIS4 |= S4_CULLMODE_NONE; 939 break; 940 case PIPE_FACE_FRONT: 941 if (rasterizer->front_ccw) 942 cso->LIS4 |= S4_CULLMODE_CCW; 943 else 944 cso->LIS4 |= S4_CULLMODE_CW; 945 break; 946 case PIPE_FACE_BACK: 947 if (rasterizer->front_ccw) 948 cso->LIS4 |= S4_CULLMODE_CW; 949 else 950 cso->LIS4 |= S4_CULLMODE_CCW; 951 break; 952 case PIPE_FACE_FRONT_AND_BACK: 953 cso->LIS4 |= S4_CULLMODE_BOTH; 954 break; 955 } 956 957 { 958 int line_width = CLAMP((int)(rasterizer->line_width * 2), 1, 0xf); 959 960 cso->LIS4 |= line_width << S4_LINE_WIDTH_SHIFT; 961 962 if (rasterizer->line_smooth) 963 cso->LIS4 |= S4_LINE_ANTIALIAS_ENABLE; 964 } 965 966 { 967 int point_size = CLAMP((int) rasterizer->point_size, 1, 0xff); 968 969 cso->LIS4 |= point_size << S4_POINT_WIDTH_SHIFT; 970 } 971 972 if (rasterizer->flatshade) { 973 cso->LIS4 |= (S4_FLATSHADE_ALPHA | 974 S4_FLATSHADE_COLOR | 975 S4_FLATSHADE_SPECULAR); 976 } 977 978 cso->LIS7 = fui( rasterizer->offset_units ); 979 980 981 return cso; 982} 983 984static void i915_bind_rasterizer_state( struct pipe_context *pipe, 985 void *raster ) 986{ 987 struct i915_context *i915 = i915_context(pipe); 988 989 if (i915->rasterizer == raster) 990 return; 991 992 i915->rasterizer = (struct i915_rasterizer_state *)raster; 993 994 /* pass-through to draw module */ 995 draw_set_rasterizer_state(i915->draw, 996 (i915->rasterizer ? &(i915->rasterizer->templ) : NULL), 997 raster); 998 999 i915->dirty |= I915_NEW_RASTERIZER; 1000} 1001 1002static void i915_delete_rasterizer_state(struct pipe_context *pipe, 1003 void *raster) 1004{ 1005 FREE(raster); 1006} 1007 1008static void i915_set_vertex_buffers(struct pipe_context *pipe, 1009 unsigned start_slot, unsigned count, 1010 const struct pipe_vertex_buffer *buffers) 1011{ 1012 struct i915_context *i915 = i915_context(pipe); 1013 struct draw_context *draw = i915->draw; 1014 1015 util_set_vertex_buffers_count(i915->vertex_buffers, 1016 &i915->nr_vertex_buffers, 1017 buffers, start_slot, count); 1018 1019 /* pass-through to draw module */ 1020 draw_set_vertex_buffers(draw, start_slot, count, buffers); 1021} 1022 1023static void * 1024i915_create_vertex_elements_state(struct pipe_context *pipe, 1025 unsigned count, 1026 const struct pipe_vertex_element *attribs) 1027{ 1028 struct i915_velems_state *velems; 1029 assert(count <= PIPE_MAX_ATTRIBS); 1030 velems = (struct i915_velems_state *) MALLOC(sizeof(struct i915_velems_state)); 1031 if (velems) { 1032 velems->count = count; 1033 memcpy(velems->velem, attribs, sizeof(*attribs) * count); 1034 } 1035 return velems; 1036} 1037 1038static void 1039i915_bind_vertex_elements_state(struct pipe_context *pipe, 1040 void *velems) 1041{ 1042 struct i915_context *i915 = i915_context(pipe); 1043 struct i915_velems_state *i915_velems = (struct i915_velems_state *) velems; 1044 1045 if (i915->velems == velems) 1046 return; 1047 1048 i915->velems = velems; 1049 1050 /* pass-through to draw module */ 1051 if (i915_velems) { 1052 draw_set_vertex_elements(i915->draw, 1053 i915_velems->count, i915_velems->velem); 1054 } 1055} 1056 1057static void 1058i915_delete_vertex_elements_state(struct pipe_context *pipe, void *velems) 1059{ 1060 FREE( velems ); 1061} 1062 1063static void i915_set_index_buffer(struct pipe_context *pipe, 1064 const struct pipe_index_buffer *ib) 1065{ 1066 struct i915_context *i915 = i915_context(pipe); 1067 1068 if (ib) 1069 memcpy(&i915->index_buffer, ib, sizeof(i915->index_buffer)); 1070 else 1071 memset(&i915->index_buffer, 0, sizeof(i915->index_buffer)); 1072} 1073 1074static void 1075i915_set_sample_mask(struct pipe_context *pipe, 1076 unsigned sample_mask) 1077{ 1078} 1079 1080void 1081i915_init_state_functions( struct i915_context *i915 ) 1082{ 1083 i915->base.create_blend_state = i915_create_blend_state; 1084 i915->base.bind_blend_state = i915_bind_blend_state; 1085 i915->base.delete_blend_state = i915_delete_blend_state; 1086 1087 i915->base.create_sampler_state = i915_create_sampler_state; 1088 i915->base.bind_sampler_states = i915_bind_sampler_states; 1089 i915->base.delete_sampler_state = i915_delete_sampler_state; 1090 1091 i915->base.create_depth_stencil_alpha_state = i915_create_depth_stencil_state; 1092 i915->base.bind_depth_stencil_alpha_state = i915_bind_depth_stencil_state; 1093 i915->base.delete_depth_stencil_alpha_state = i915_delete_depth_stencil_state; 1094 1095 i915->base.create_rasterizer_state = i915_create_rasterizer_state; 1096 i915->base.bind_rasterizer_state = i915_bind_rasterizer_state; 1097 i915->base.delete_rasterizer_state = i915_delete_rasterizer_state; 1098 i915->base.create_fs_state = i915_create_fs_state; 1099 i915->base.bind_fs_state = i915_bind_fs_state; 1100 i915->base.delete_fs_state = i915_delete_fs_state; 1101 i915->base.create_vs_state = i915_create_vs_state; 1102 i915->base.bind_vs_state = i915_bind_vs_state; 1103 i915->base.delete_vs_state = i915_delete_vs_state; 1104 i915->base.create_vertex_elements_state = i915_create_vertex_elements_state; 1105 i915->base.bind_vertex_elements_state = i915_bind_vertex_elements_state; 1106 i915->base.delete_vertex_elements_state = i915_delete_vertex_elements_state; 1107 1108 i915->base.set_blend_color = i915_set_blend_color; 1109 i915->base.set_stencil_ref = i915_set_stencil_ref; 1110 i915->base.set_clip_state = i915_set_clip_state; 1111 i915->base.set_sample_mask = i915_set_sample_mask; 1112 i915->base.set_constant_buffer = i915_set_constant_buffer; 1113 i915->base.set_framebuffer_state = i915_set_framebuffer_state; 1114 1115 i915->base.set_polygon_stipple = i915_set_polygon_stipple; 1116 i915->base.set_scissor_states = i915_set_scissor_states; 1117 i915->base.set_sampler_views = i915_set_sampler_views; 1118 i915->base.create_sampler_view = i915_create_sampler_view; 1119 i915->base.sampler_view_destroy = i915_sampler_view_destroy; 1120 i915->base.set_viewport_states = i915_set_viewport_states; 1121 i915->base.set_vertex_buffers = i915_set_vertex_buffers; 1122 i915->base.set_index_buffer = i915_set_index_buffer; 1123} 1124