i915_state.c revision 26e7436ad3e757ed10cb477f76ab3fdce9710923
1/************************************************************************** 2 * 3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 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/* Authors: Keith Whitwell <keith@tungstengraphics.com> 29 */ 30 31 32#include "draw/draw_context.h" 33#include "util/u_inlines.h" 34#include "util/u_math.h" 35#include "util/u_memory.h" 36#include "util/u_transfer.h" 37#include "tgsi/tgsi_parse.h" 38 39#include "i915_context.h" 40#include "i915_reg.h" 41#include "i915_state_inlines.h" 42#include "i915_fpc.h" 43#include "i915_resource.h" 44 45/* The i915 (and related graphics cores) do not support GL_CLAMP. The 46 * Intel drivers for "other operating systems" implement GL_CLAMP as 47 * GL_CLAMP_TO_EDGE, so the same is done here. 48 */ 49static unsigned 50translate_wrap_mode(unsigned wrap) 51{ 52 switch (wrap) { 53 case PIPE_TEX_WRAP_REPEAT: 54 return TEXCOORDMODE_WRAP; 55 case PIPE_TEX_WRAP_CLAMP: 56 return TEXCOORDMODE_CLAMP_EDGE; /* not quite correct */ 57 case PIPE_TEX_WRAP_CLAMP_TO_EDGE: 58 return TEXCOORDMODE_CLAMP_EDGE; 59 case PIPE_TEX_WRAP_CLAMP_TO_BORDER: 60 return TEXCOORDMODE_CLAMP_BORDER; 61 case PIPE_TEX_WRAP_MIRROR_REPEAT: 62 return TEXCOORDMODE_MIRROR; 63 default: 64 return TEXCOORDMODE_WRAP; 65 } 66} 67 68static unsigned translate_img_filter( unsigned filter ) 69{ 70 switch (filter) { 71 case PIPE_TEX_FILTER_NEAREST: 72 return FILTER_NEAREST; 73 case PIPE_TEX_FILTER_LINEAR: 74 return FILTER_LINEAR; 75 default: 76 assert(0); 77 return FILTER_NEAREST; 78 } 79} 80 81static unsigned translate_mip_filter( unsigned filter ) 82{ 83 switch (filter) { 84 case PIPE_TEX_MIPFILTER_NONE: 85 return MIPFILTER_NONE; 86 case PIPE_TEX_MIPFILTER_NEAREST: 87 return MIPFILTER_NEAREST; 88 case PIPE_TEX_MIPFILTER_LINEAR: 89 return MIPFILTER_LINEAR; 90 default: 91 assert(0); 92 return MIPFILTER_NONE; 93 } 94} 95 96 97/* None of this state is actually used for anything yet. 98 */ 99static void * 100i915_create_blend_state(struct pipe_context *pipe, 101 const struct pipe_blend_state *blend) 102{ 103 struct i915_blend_state *cso_data = CALLOC_STRUCT( i915_blend_state ); 104 105 { 106 unsigned eqRGB = blend->rt[0].rgb_func; 107 unsigned srcRGB = blend->rt[0].rgb_src_factor; 108 unsigned dstRGB = blend->rt[0].rgb_dst_factor; 109 110 unsigned eqA = blend->rt[0].alpha_func; 111 unsigned srcA = blend->rt[0].alpha_src_factor; 112 unsigned dstA = blend->rt[0].alpha_dst_factor; 113 114 /* Special handling for MIN/MAX filter modes handled at 115 * state_tracker level. 116 */ 117 118 if (srcA != srcRGB || 119 dstA != dstRGB || 120 eqA != eqRGB) { 121 122 cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | 123 IAB_MODIFY_ENABLE | 124 IAB_ENABLE | 125 IAB_MODIFY_FUNC | 126 IAB_MODIFY_SRC_FACTOR | 127 IAB_MODIFY_DST_FACTOR | 128 SRC_ABLND_FACT(i915_translate_blend_factor(srcA)) | 129 DST_ABLND_FACT(i915_translate_blend_factor(dstA)) | 130 (i915_translate_blend_func(eqA) << IAB_FUNC_SHIFT)); 131 } 132 else { 133 cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | 134 IAB_MODIFY_ENABLE | 135 0); 136 } 137 } 138 139 cso_data->modes4 |= (_3DSTATE_MODES_4_CMD | 140 ENABLE_LOGIC_OP_FUNC | 141 LOGIC_OP_FUNC(i915_translate_logic_op(blend->logicop_func))); 142 143 if (blend->logicop_enable) 144 cso_data->LIS5 |= S5_LOGICOP_ENABLE; 145 146 if (blend->dither) 147 cso_data->LIS5 |= S5_COLOR_DITHER_ENABLE; 148 149 /* XXX here take the target fixup into account */ 150 if ((blend->rt[0].colormask & PIPE_MASK_R) == 0) 151 cso_data->LIS5 |= S5_WRITEDISABLE_RED; 152 153 if ((blend->rt[0].colormask & PIPE_MASK_G) == 0) 154 cso_data->LIS5 |= S5_WRITEDISABLE_GREEN; 155 156 if ((blend->rt[0].colormask & PIPE_MASK_B) == 0) 157 cso_data->LIS5 |= S5_WRITEDISABLE_BLUE; 158 159 if ((blend->rt[0].colormask & PIPE_MASK_A) == 0) 160 cso_data->LIS5 |= S5_WRITEDISABLE_ALPHA; 161 162 if (blend->rt[0].blend_enable) { 163 unsigned funcRGB = blend->rt[0].rgb_func; 164 unsigned srcRGB = blend->rt[0].rgb_src_factor; 165 unsigned dstRGB = blend->rt[0].rgb_dst_factor; 166 167 cso_data->LIS6 |= (S6_CBUF_BLEND_ENABLE | 168 SRC_BLND_FACT(i915_translate_blend_factor(srcRGB)) | 169 DST_BLND_FACT(i915_translate_blend_factor(dstRGB)) | 170 (i915_translate_blend_func(funcRGB) << S6_CBUF_BLEND_FUNC_SHIFT)); 171 } 172 173 return cso_data; 174} 175 176static void i915_bind_blend_state(struct pipe_context *pipe, 177 void *blend) 178{ 179 struct i915_context *i915 = i915_context(pipe); 180 draw_flush(i915->draw); 181 182 i915->blend = (struct i915_blend_state*)blend; 183 184 i915->dirty |= I915_NEW_BLEND; 185} 186 187 188static void i915_delete_blend_state(struct pipe_context *pipe, void *blend) 189{ 190 FREE(blend); 191} 192 193static void i915_set_blend_color( struct pipe_context *pipe, 194 const struct pipe_blend_color *blend_color ) 195{ 196 struct i915_context *i915 = i915_context(pipe); 197 draw_flush(i915->draw); 198 199 i915->blend_color = *blend_color; 200 201 i915->dirty |= I915_NEW_BLEND; 202} 203 204static void i915_set_stencil_ref( struct pipe_context *pipe, 205 const struct pipe_stencil_ref *stencil_ref ) 206{ 207 struct i915_context *i915 = i915_context(pipe); 208 draw_flush(i915->draw); 209 210 i915->stencil_ref = *stencil_ref; 211 212 i915->dirty |= I915_NEW_DEPTH_STENCIL; 213} 214 215static void * 216i915_create_sampler_state(struct pipe_context *pipe, 217 const struct pipe_sampler_state *sampler) 218{ 219 struct i915_sampler_state *cso = CALLOC_STRUCT( i915_sampler_state ); 220 const unsigned ws = sampler->wrap_s; 221 const unsigned wt = sampler->wrap_t; 222 const unsigned wr = sampler->wrap_r; 223 unsigned minFilt, magFilt; 224 unsigned mipFilt; 225 226 cso->templ = sampler; 227 228 mipFilt = translate_mip_filter(sampler->min_mip_filter); 229 minFilt = translate_img_filter( sampler->min_img_filter ); 230 magFilt = translate_img_filter( sampler->mag_img_filter ); 231 232 if (sampler->max_anisotropy > 1) 233 minFilt = magFilt = FILTER_ANISOTROPIC; 234 235 if (sampler->max_anisotropy > 2) { 236 cso->state[0] |= SS2_MAX_ANISO_4; 237 } 238 239 { 240 int b = (int) (sampler->lod_bias * 16.0); 241 b = CLAMP(b, -256, 255); 242 cso->state[0] |= ((b << SS2_LOD_BIAS_SHIFT) & SS2_LOD_BIAS_MASK); 243 } 244 245 /* Shadow: 246 */ 247 if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) 248 { 249 cso->state[0] |= (SS2_SHADOW_ENABLE | 250 i915_translate_shadow_compare_func(sampler->compare_func)); 251 252 minFilt = FILTER_4X4_FLAT; 253 magFilt = FILTER_4X4_FLAT; 254 } 255 256 cso->state[0] |= ((minFilt << SS2_MIN_FILTER_SHIFT) | 257 (mipFilt << SS2_MIP_FILTER_SHIFT) | 258 (magFilt << SS2_MAG_FILTER_SHIFT)); 259 260 cso->state[1] |= 261 ((translate_wrap_mode(ws) << SS3_TCX_ADDR_MODE_SHIFT) | 262 (translate_wrap_mode(wt) << SS3_TCY_ADDR_MODE_SHIFT) | 263 (translate_wrap_mode(wr) << SS3_TCZ_ADDR_MODE_SHIFT)); 264 265 if (sampler->normalized_coords) 266 cso->state[1] |= SS3_NORMALIZED_COORDS; 267 268 { 269 int minlod = (int) (16.0 * sampler->min_lod); 270 int maxlod = (int) (16.0 * sampler->max_lod); 271 minlod = CLAMP(minlod, 0, 16 * 11); 272 maxlod = CLAMP(maxlod, 0, 16 * 11); 273 274 if (minlod > maxlod) 275 maxlod = minlod; 276 277 cso->minlod = minlod; 278 cso->maxlod = maxlod; 279 } 280 281 { 282 ubyte r = float_to_ubyte(sampler->border_color[0]); 283 ubyte g = float_to_ubyte(sampler->border_color[1]); 284 ubyte b = float_to_ubyte(sampler->border_color[2]); 285 ubyte a = float_to_ubyte(sampler->border_color[3]); 286 cso->state[2] = I915PACKCOLOR8888(r, g, b, a); 287 } 288 return cso; 289} 290 291static void i915_fixup_bind_sampler_states(struct pipe_context *pipe, 292 unsigned num, void **sampler) 293{ 294 struct i915_context *i915 = i915_context(pipe); 295 296 i915->saved_nr_samplers = num; 297 memcpy(&i915->saved_samplers, sampler, sizeof(void *) * num); 298 299 i915->saved_bind_sampler_states(pipe, num, sampler); 300} 301 302static void i915_bind_sampler_states(struct pipe_context *pipe, 303 unsigned num, void **sampler) 304{ 305 struct i915_context *i915 = i915_context(pipe); 306 unsigned i; 307 308 /* Check for no-op */ 309 if (num == i915->num_samplers && 310 !memcmp(i915->sampler, sampler, num * sizeof(void *))) 311 return; 312 313 draw_flush(i915->draw); 314 315 for (i = 0; i < num; ++i) 316 i915->sampler[i] = sampler[i]; 317 for (i = num; i < PIPE_MAX_SAMPLERS; ++i) 318 i915->sampler[i] = NULL; 319 320 i915->num_samplers = num; 321 322 i915->dirty |= I915_NEW_SAMPLER; 323} 324 325static void i915_delete_sampler_state(struct pipe_context *pipe, 326 void *sampler) 327{ 328 FREE(sampler); 329} 330 331 332/** XXX move someday? Or consolidate all these simple state setters 333 * into one file. 334 */ 335 336static void * 337i915_create_depth_stencil_state(struct pipe_context *pipe, 338 const struct pipe_depth_stencil_alpha_state *depth_stencil) 339{ 340 struct i915_depth_stencil_state *cso = CALLOC_STRUCT( i915_depth_stencil_state ); 341 342 { 343 int testmask = depth_stencil->stencil[0].valuemask & 0xff; 344 int writemask = depth_stencil->stencil[0].writemask & 0xff; 345 346 cso->stencil_modes4 |= (_3DSTATE_MODES_4_CMD | 347 ENABLE_STENCIL_TEST_MASK | 348 STENCIL_TEST_MASK(testmask) | 349 ENABLE_STENCIL_WRITE_MASK | 350 STENCIL_WRITE_MASK(writemask)); 351 } 352 353 if (depth_stencil->stencil[0].enabled) { 354 int test = i915_translate_compare_func(depth_stencil->stencil[0].func); 355 int fop = i915_translate_stencil_op(depth_stencil->stencil[0].fail_op); 356 int dfop = i915_translate_stencil_op(depth_stencil->stencil[0].zfail_op); 357 int dpop = i915_translate_stencil_op(depth_stencil->stencil[0].zpass_op); 358 359 cso->stencil_LIS5 |= (S5_STENCIL_TEST_ENABLE | 360 S5_STENCIL_WRITE_ENABLE | 361 (test << S5_STENCIL_TEST_FUNC_SHIFT) | 362 (fop << S5_STENCIL_FAIL_SHIFT) | 363 (dfop << S5_STENCIL_PASS_Z_FAIL_SHIFT) | 364 (dpop << S5_STENCIL_PASS_Z_PASS_SHIFT)); 365 } 366 367 if (depth_stencil->stencil[1].enabled) { 368 int test = i915_translate_compare_func(depth_stencil->stencil[1].func); 369 int fop = i915_translate_stencil_op(depth_stencil->stencil[1].fail_op); 370 int dfop = i915_translate_stencil_op(depth_stencil->stencil[1].zfail_op); 371 int dpop = i915_translate_stencil_op(depth_stencil->stencil[1].zpass_op); 372 int tmask = depth_stencil->stencil[1].valuemask & 0xff; 373 int wmask = depth_stencil->stencil[1].writemask & 0xff; 374 375 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 376 BFO_ENABLE_STENCIL_FUNCS | 377 BFO_ENABLE_STENCIL_TWO_SIDE | 378 BFO_ENABLE_STENCIL_REF | 379 BFO_STENCIL_TWO_SIDE | 380 (test << BFO_STENCIL_TEST_SHIFT) | 381 (fop << BFO_STENCIL_FAIL_SHIFT) | 382 (dfop << BFO_STENCIL_PASS_Z_FAIL_SHIFT) | 383 (dpop << BFO_STENCIL_PASS_Z_PASS_SHIFT)); 384 385 cso->bfo[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS | 386 BFM_ENABLE_STENCIL_TEST_MASK | 387 BFM_ENABLE_STENCIL_WRITE_MASK | 388 (tmask << BFM_STENCIL_TEST_MASK_SHIFT) | 389 (wmask << BFM_STENCIL_WRITE_MASK_SHIFT)); 390 } 391 else { 392 /* This actually disables two-side stencil: The bit set is a 393 * modify-enable bit to indicate we are changing the two-side 394 * setting. Then there is a symbolic zero to show that we are 395 * setting the flag to zero/off. 396 */ 397 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 398 BFO_ENABLE_STENCIL_TWO_SIDE | 399 0); 400 cso->bfo[1] = 0; 401 } 402 403 if (depth_stencil->depth.enabled) { 404 int func = i915_translate_compare_func(depth_stencil->depth.func); 405 406 cso->depth_LIS6 |= (S6_DEPTH_TEST_ENABLE | 407 (func << S6_DEPTH_TEST_FUNC_SHIFT)); 408 409 if (depth_stencil->depth.writemask) 410 cso->depth_LIS6 |= S6_DEPTH_WRITE_ENABLE; 411 } 412 413 if (depth_stencil->alpha.enabled) { 414 int test = i915_translate_compare_func(depth_stencil->alpha.func); 415 ubyte refByte = float_to_ubyte(depth_stencil->alpha.ref_value); 416 417 cso->depth_LIS6 |= (S6_ALPHA_TEST_ENABLE | 418 (test << S6_ALPHA_TEST_FUNC_SHIFT) | 419 (((unsigned) refByte) << S6_ALPHA_REF_SHIFT)); 420 } 421 422 return cso; 423} 424 425static void i915_bind_depth_stencil_state(struct pipe_context *pipe, 426 void *depth_stencil) 427{ 428 struct i915_context *i915 = i915_context(pipe); 429 draw_flush(i915->draw); 430 431 i915->depth_stencil = (const struct i915_depth_stencil_state *)depth_stencil; 432 433 i915->dirty |= I915_NEW_DEPTH_STENCIL; 434} 435 436static void i915_delete_depth_stencil_state(struct pipe_context *pipe, 437 void *depth_stencil) 438{ 439 FREE(depth_stencil); 440} 441 442 443static void i915_set_scissor_state( struct pipe_context *pipe, 444 const struct pipe_scissor_state *scissor ) 445{ 446 struct i915_context *i915 = i915_context(pipe); 447 draw_flush(i915->draw); 448 449 memcpy( &i915->scissor, scissor, sizeof(*scissor) ); 450 i915->dirty |= I915_NEW_SCISSOR; 451} 452 453 454static void i915_set_polygon_stipple( struct pipe_context *pipe, 455 const struct pipe_poly_stipple *stipple ) 456{ 457} 458 459 460 461static void * 462i915_create_fs_state(struct pipe_context *pipe, 463 const struct pipe_shader_state *templ) 464{ 465 struct i915_context *i915 = i915_context(pipe); 466 struct i915_fragment_shader *ifs = CALLOC_STRUCT(i915_fragment_shader); 467 if (!ifs) 468 return NULL; 469 470 ifs->draw_data = draw_create_fragment_shader(i915->draw, templ); 471 ifs->state.tokens = tgsi_dup_tokens(templ->tokens); 472 473 tgsi_scan_shader(templ->tokens, &ifs->info); 474 475 /* The shader's compiled to i915 instructions here */ 476 i915_translate_fragment_program(i915, ifs); 477 478 return ifs; 479} 480 481static void 482i915_fixup_bind_fs_state(struct pipe_context *pipe, void *shader) 483{ 484 struct i915_context *i915 = i915_context(pipe); 485 draw_flush(i915->draw); 486 487 i915->saved_fs = shader; 488 489 i915->saved_bind_fs_state(pipe, shader); 490} 491 492static void 493i915_bind_fs_state(struct pipe_context *pipe, void *shader) 494{ 495 struct i915_context *i915 = i915_context(pipe); 496 draw_flush(i915->draw); 497 498 i915->fs = (struct i915_fragment_shader*) shader; 499 500 draw_bind_fragment_shader(i915->draw, (i915->fs ? i915->fs->draw_data : NULL)); 501 502 i915->dirty |= I915_NEW_FS; 503} 504 505static 506void i915_delete_fs_state(struct pipe_context *pipe, void *shader) 507{ 508 struct i915_fragment_shader *ifs = (struct i915_fragment_shader *) shader; 509 510 if (ifs->program) { 511 FREE(ifs->program); 512 ifs->program = NULL; 513 FREE((struct tgsi_token *)ifs->state.tokens); 514 ifs->state.tokens = NULL; 515 } 516 ifs->program_len = 0; 517 518 FREE(ifs); 519} 520 521 522static void * 523i915_create_vs_state(struct pipe_context *pipe, 524 const struct pipe_shader_state *templ) 525{ 526 struct i915_context *i915 = i915_context(pipe); 527 528 /* just pass-through to draw module */ 529 return draw_create_vertex_shader(i915->draw, templ); 530} 531 532static void i915_bind_vs_state(struct pipe_context *pipe, void *shader) 533{ 534 struct i915_context *i915 = i915_context(pipe); 535 536 i915->saved_vs = shader; 537 538 /* just pass-through to draw module */ 539 draw_bind_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 540 541 i915->dirty |= I915_NEW_VS; 542} 543 544static void i915_delete_vs_state(struct pipe_context *pipe, void *shader) 545{ 546 struct i915_context *i915 = i915_context(pipe); 547 548 /* just pass-through to draw module */ 549 draw_delete_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 550} 551 552static void i915_set_constant_buffer(struct pipe_context *pipe, 553 uint shader, uint index, 554 struct pipe_resource *buf) 555{ 556 struct i915_context *i915 = i915_context(pipe); 557 unsigned new_num = 0; 558 boolean diff = TRUE; 559 560 561 /* XXX don't support geom shaders now */ 562 if (shader == PIPE_SHADER_GEOMETRY) 563 return; 564 565 /* if we have a new buffer compare it with the old one */ 566 if (buf) { 567 struct i915_buffer *ibuf = i915_buffer(buf); 568 struct pipe_resource *old_buf = i915->constants[shader]; 569 struct i915_buffer *old = old_buf ? i915_buffer(old_buf) : NULL; 570 unsigned old_num = i915->current.num_user_constants[shader]; 571 572 new_num = ibuf->b.b.width0 / 4 * sizeof(float); 573 574 if (old_num == new_num) { 575 if (old_num == 0) 576 diff = FALSE; 577#if 0 578 /* XXX no point in running this code since st/mesa only uses user buffers */ 579 /* Can't compare the buffer data since they are userbuffers */ 580 else if (old && old->free_on_destroy) 581 diff = memcmp(old->data, ibuf->data, ibuf->b.b.width0); 582#else 583 (void)old; 584#endif 585 } 586 } else { 587 diff = i915->current.num_user_constants[shader] != 0; 588 } 589 590 /* 591 * flush before updateing the state. 592 */ 593 if (diff && shader == PIPE_SHADER_FRAGMENT) 594 draw_flush(i915->draw); 595 596 pipe_resource_reference(&i915->constants[shader], buf); 597 i915->current.num_user_constants[shader] = new_num; 598 599 if (diff) 600 i915->dirty |= shader == PIPE_SHADER_VERTEX ? I915_NEW_VS_CONSTANTS : I915_NEW_FS_CONSTANTS; 601} 602 603 604static void 605i915_fixup_set_fragment_sampler_views(struct pipe_context *pipe, 606 unsigned num, 607 struct pipe_sampler_view **views) 608{ 609 struct i915_context *i915 = i915_context(pipe); 610 int i; 611 612 for (i = 0; i < num; i++) 613 pipe_sampler_view_reference(&i915->saved_sampler_views[i], 614 views[i]); 615 616 for (i = num; i < i915->saved_nr_sampler_views; i++) 617 pipe_sampler_view_reference(&i915->saved_sampler_views[i], 618 NULL); 619 620 i915->saved_nr_sampler_views = num; 621 622 i915->saved_set_sampler_views(pipe, num, views); 623} 624 625static void i915_set_fragment_sampler_views(struct pipe_context *pipe, 626 unsigned num, 627 struct pipe_sampler_view **views) 628{ 629 struct i915_context *i915 = i915_context(pipe); 630 uint i; 631 632 assert(num <= PIPE_MAX_SAMPLERS); 633 634 /* Check for no-op */ 635 if (num == i915->num_fragment_sampler_views && 636 !memcmp(i915->fragment_sampler_views, views, num * sizeof(struct pipe_sampler_view *))) 637 return; 638 639 /* Fixes wrong texture in texobj with VBUF */ 640 draw_flush(i915->draw); 641 642 for (i = 0; i < num; i++) 643 pipe_sampler_view_reference(&i915->fragment_sampler_views[i], 644 views[i]); 645 646 for (i = num; i < i915->num_fragment_sampler_views; i++) 647 pipe_sampler_view_reference(&i915->fragment_sampler_views[i], 648 NULL); 649 650 i915->num_fragment_sampler_views = num; 651 652 i915->dirty |= I915_NEW_SAMPLER_VIEW; 653} 654 655 656static struct pipe_sampler_view * 657i915_create_sampler_view(struct pipe_context *pipe, 658 struct pipe_resource *texture, 659 const struct pipe_sampler_view *templ) 660{ 661 struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view); 662 663 if (view) { 664 *view = *templ; 665 view->reference.count = 1; 666 view->texture = NULL; 667 pipe_resource_reference(&view->texture, texture); 668 view->context = pipe; 669 } 670 671 return view; 672} 673 674 675static void 676i915_sampler_view_destroy(struct pipe_context *pipe, 677 struct pipe_sampler_view *view) 678{ 679 pipe_resource_reference(&view->texture, NULL); 680 FREE(view); 681} 682 683 684static void i915_set_framebuffer_state(struct pipe_context *pipe, 685 const struct pipe_framebuffer_state *fb) 686{ 687 struct i915_context *i915 = i915_context(pipe); 688 int i; 689 690 draw_flush(i915->draw); 691 692 i915->framebuffer.width = fb->width; 693 i915->framebuffer.height = fb->height; 694 i915->framebuffer.nr_cbufs = fb->nr_cbufs; 695 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { 696 pipe_surface_reference(&i915->framebuffer.cbufs[i], 697 i < fb->nr_cbufs ? fb->cbufs[i] : NULL); 698 } 699 pipe_surface_reference(&i915->framebuffer.zsbuf, fb->zsbuf); 700 701 i915->dirty |= I915_NEW_FRAMEBUFFER; 702} 703 704 705 706static void i915_set_clip_state( struct pipe_context *pipe, 707 const struct pipe_clip_state *clip ) 708{ 709 struct i915_context *i915 = i915_context(pipe); 710 draw_flush(i915->draw); 711 712 i915->saved_clip = *clip; 713 714 draw_set_clip_state(i915->draw, clip); 715 716 i915->dirty |= I915_NEW_CLIP; 717} 718 719 720 721/* Called when driver state tracker notices changes to the viewport 722 * matrix: 723 */ 724static void i915_set_viewport_state( struct pipe_context *pipe, 725 const struct pipe_viewport_state *viewport ) 726{ 727 struct i915_context *i915 = i915_context(pipe); 728 729 i915->viewport = *viewport; /* struct copy */ 730 731 /* pass the viewport info to the draw module */ 732 draw_set_viewport_state(i915->draw, &i915->viewport); 733 734 i915->dirty |= I915_NEW_VIEWPORT; 735} 736 737 738static void * 739i915_create_rasterizer_state(struct pipe_context *pipe, 740 const struct pipe_rasterizer_state *rasterizer) 741{ 742 struct i915_rasterizer_state *cso = CALLOC_STRUCT( i915_rasterizer_state ); 743 744 cso->templ = *rasterizer; 745 cso->color_interp = rasterizer->flatshade ? INTERP_CONSTANT : INTERP_LINEAR; 746 cso->light_twoside = rasterizer->light_twoside; 747 cso->ds[0].u = _3DSTATE_DEPTH_OFFSET_SCALE; 748 cso->ds[1].f = rasterizer->offset_scale; 749 if (rasterizer->poly_stipple_enable) { 750 cso->st |= ST1_ENABLE; 751 } 752 753 if (rasterizer->scissor) 754 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT; 755 else 756 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT; 757 758 switch (rasterizer->cull_face) { 759 case PIPE_FACE_NONE: 760 cso->LIS4 |= S4_CULLMODE_NONE; 761 break; 762 case PIPE_FACE_FRONT: 763 if (rasterizer->front_ccw) 764 cso->LIS4 |= S4_CULLMODE_CCW; 765 else 766 cso->LIS4 |= S4_CULLMODE_CW; 767 break; 768 case PIPE_FACE_BACK: 769 if (rasterizer->front_ccw) 770 cso->LIS4 |= S4_CULLMODE_CW; 771 else 772 cso->LIS4 |= S4_CULLMODE_CCW; 773 break; 774 case PIPE_FACE_FRONT_AND_BACK: 775 cso->LIS4 |= S4_CULLMODE_BOTH; 776 break; 777 } 778 779 { 780 int line_width = CLAMP((int)(rasterizer->line_width * 2), 1, 0xf); 781 782 cso->LIS4 |= line_width << S4_LINE_WIDTH_SHIFT; 783 784 if (rasterizer->line_smooth) 785 cso->LIS4 |= S4_LINE_ANTIALIAS_ENABLE; 786 } 787 788 { 789 int point_size = CLAMP((int) rasterizer->point_size, 1, 0xff); 790 791 cso->LIS4 |= point_size << S4_POINT_WIDTH_SHIFT; 792 } 793 794 if (rasterizer->flatshade) { 795 cso->LIS4 |= (S4_FLATSHADE_ALPHA | 796 S4_FLATSHADE_COLOR | 797 S4_FLATSHADE_SPECULAR); 798 } 799 800 cso->LIS7 = fui( rasterizer->offset_units ); 801 802 803 return cso; 804} 805 806static void i915_bind_rasterizer_state( struct pipe_context *pipe, 807 void *raster ) 808{ 809 struct i915_context *i915 = i915_context(pipe); 810 811 i915->rasterizer = (struct i915_rasterizer_state *)raster; 812 813 /* pass-through to draw module */ 814 draw_set_rasterizer_state(i915->draw, 815 (i915->rasterizer ? &(i915->rasterizer->templ) : NULL), 816 raster); 817 818 i915->dirty |= I915_NEW_RASTERIZER; 819} 820 821static void i915_delete_rasterizer_state(struct pipe_context *pipe, 822 void *raster) 823{ 824 FREE(raster); 825} 826 827static void i915_set_vertex_buffers(struct pipe_context *pipe, 828 unsigned count, 829 const struct pipe_vertex_buffer *buffers) 830{ 831 struct i915_context *i915 = i915_context(pipe); 832 struct draw_context *draw = i915->draw; 833 int i; 834 835 util_copy_vertex_buffers(i915->saved_vertex_buffers, 836 &i915->saved_nr_vertex_buffers, 837 buffers, count); 838#if 0 839 /* XXX doesn't look like this is needed */ 840 /* unmap old */ 841 for (i = 0; i < i915->num_vertex_buffers; i++) { 842 draw_set_mapped_vertex_buffer(draw, i, NULL); 843 } 844#endif 845 846 /* pass-through to draw module */ 847 draw_set_vertex_buffers(draw, count, buffers); 848 849 /* map new */ 850 for (i = 0; i < count; i++) { 851 void *buf = i915_buffer(buffers[i].buffer)->data; 852 draw_set_mapped_vertex_buffer(draw, i, buf); 853 } 854} 855 856static void * 857i915_create_vertex_elements_state(struct pipe_context *pipe, 858 unsigned count, 859 const struct pipe_vertex_element *attribs) 860{ 861 struct i915_velems_state *velems; 862 assert(count <= PIPE_MAX_ATTRIBS); 863 velems = (struct i915_velems_state *) MALLOC(sizeof(struct i915_velems_state)); 864 if (velems) { 865 velems->count = count; 866 memcpy(velems->velem, attribs, sizeof(*attribs) * count); 867 } 868 return velems; 869} 870 871static void 872i915_bind_vertex_elements_state(struct pipe_context *pipe, 873 void *velems) 874{ 875 struct i915_context *i915 = i915_context(pipe); 876 struct i915_velems_state *i915_velems = (struct i915_velems_state *) velems; 877 878 i915->saved_velems = velems; 879 880 /* pass-through to draw module */ 881 if (i915_velems) { 882 draw_set_vertex_elements(i915->draw, 883 i915_velems->count, i915_velems->velem); 884 } 885} 886 887static void 888i915_delete_vertex_elements_state(struct pipe_context *pipe, void *velems) 889{ 890 FREE( velems ); 891} 892 893static void i915_set_index_buffer(struct pipe_context *pipe, 894 const struct pipe_index_buffer *ib) 895{ 896 struct i915_context *i915 = i915_context(pipe); 897 898 if (ib) 899 memcpy(&i915->index_buffer, ib, sizeof(i915->index_buffer)); 900 else 901 memset(&i915->index_buffer, 0, sizeof(i915->index_buffer)); 902 903 /* pass-through to draw module */ 904 draw_set_index_buffer(i915->draw, ib); 905} 906 907static void 908i915_set_sample_mask(struct pipe_context *pipe, 909 unsigned sample_mask) 910{ 911} 912 913void 914i915_init_state_functions( struct i915_context *i915 ) 915{ 916 i915->base.create_blend_state = i915_create_blend_state; 917 i915->base.bind_blend_state = i915_bind_blend_state; 918 i915->base.delete_blend_state = i915_delete_blend_state; 919 920 i915->base.create_sampler_state = i915_create_sampler_state; 921 i915->base.bind_fragment_sampler_states = i915_bind_sampler_states; 922 i915->base.delete_sampler_state = i915_delete_sampler_state; 923 924 i915->base.create_depth_stencil_alpha_state = i915_create_depth_stencil_state; 925 i915->base.bind_depth_stencil_alpha_state = i915_bind_depth_stencil_state; 926 i915->base.delete_depth_stencil_alpha_state = i915_delete_depth_stencil_state; 927 928 i915->base.create_rasterizer_state = i915_create_rasterizer_state; 929 i915->base.bind_rasterizer_state = i915_bind_rasterizer_state; 930 i915->base.delete_rasterizer_state = i915_delete_rasterizer_state; 931 i915->base.create_fs_state = i915_create_fs_state; 932 i915->base.bind_fs_state = i915_bind_fs_state; 933 i915->base.delete_fs_state = i915_delete_fs_state; 934 i915->base.create_vs_state = i915_create_vs_state; 935 i915->base.bind_vs_state = i915_bind_vs_state; 936 i915->base.delete_vs_state = i915_delete_vs_state; 937 i915->base.create_vertex_elements_state = i915_create_vertex_elements_state; 938 i915->base.bind_vertex_elements_state = i915_bind_vertex_elements_state; 939 i915->base.delete_vertex_elements_state = i915_delete_vertex_elements_state; 940 941 i915->base.set_blend_color = i915_set_blend_color; 942 i915->base.set_stencil_ref = i915_set_stencil_ref; 943 i915->base.set_clip_state = i915_set_clip_state; 944 i915->base.set_sample_mask = i915_set_sample_mask; 945 i915->base.set_constant_buffer = i915_set_constant_buffer; 946 i915->base.set_framebuffer_state = i915_set_framebuffer_state; 947 948 i915->base.set_polygon_stipple = i915_set_polygon_stipple; 949 i915->base.set_scissor_state = i915_set_scissor_state; 950 i915->base.set_fragment_sampler_views = i915_set_fragment_sampler_views; 951 i915->base.create_sampler_view = i915_create_sampler_view; 952 i915->base.sampler_view_destroy = i915_sampler_view_destroy; 953 i915->base.set_viewport_state = i915_set_viewport_state; 954 i915->base.set_vertex_buffers = i915_set_vertex_buffers; 955 i915->base.set_index_buffer = i915_set_index_buffer; 956 i915->base.redefine_user_buffer = u_default_redefine_user_buffer; 957} 958 959void 960i915_init_fixup_state_functions( struct i915_context *i915 ) 961{ 962 i915->saved_bind_fs_state = i915->base.bind_fs_state; 963 i915->base.bind_fs_state = i915_fixup_bind_fs_state; 964 i915->saved_bind_sampler_states = i915->base.bind_fragment_sampler_states; 965 i915->base.bind_fragment_sampler_states = i915_fixup_bind_sampler_states; 966 i915->saved_set_sampler_views = i915->base.set_fragment_sampler_views; 967 i915->base.set_fragment_sampler_views = i915_fixup_set_fragment_sampler_views; 968} 969