i915_state.c revision 3464ebd5
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 if ((blend->rt[0].colormask & PIPE_MASK_R) == 0) 150 cso_data->LIS5 |= S5_WRITEDISABLE_RED; 151 152 if ((blend->rt[0].colormask & PIPE_MASK_G) == 0) 153 cso_data->LIS5 |= S5_WRITEDISABLE_GREEN; 154 155 if ((blend->rt[0].colormask & PIPE_MASK_B) == 0) 156 cso_data->LIS5 |= S5_WRITEDISABLE_BLUE; 157 158 if ((blend->rt[0].colormask & PIPE_MASK_A) == 0) 159 cso_data->LIS5 |= S5_WRITEDISABLE_ALPHA; 160 161 if (blend->rt[0].blend_enable) { 162 unsigned funcRGB = blend->rt[0].rgb_func; 163 unsigned srcRGB = blend->rt[0].rgb_src_factor; 164 unsigned dstRGB = blend->rt[0].rgb_dst_factor; 165 166 cso_data->LIS6 |= (S6_CBUF_BLEND_ENABLE | 167 SRC_BLND_FACT(i915_translate_blend_factor(srcRGB)) | 168 DST_BLND_FACT(i915_translate_blend_factor(dstRGB)) | 169 (i915_translate_blend_func(funcRGB) << S6_CBUF_BLEND_FUNC_SHIFT)); 170 } 171 172 return cso_data; 173} 174 175static void i915_bind_blend_state(struct pipe_context *pipe, 176 void *blend) 177{ 178 struct i915_context *i915 = i915_context(pipe); 179 draw_flush(i915->draw); 180 181 i915->blend = (struct i915_blend_state*)blend; 182 183 i915->dirty |= I915_NEW_BLEND; 184} 185 186 187static void i915_delete_blend_state(struct pipe_context *pipe, void *blend) 188{ 189 FREE(blend); 190} 191 192static void i915_set_blend_color( struct pipe_context *pipe, 193 const struct pipe_blend_color *blend_color ) 194{ 195 struct i915_context *i915 = i915_context(pipe); 196 draw_flush(i915->draw); 197 198 i915->blend_color = *blend_color; 199 200 i915->dirty |= I915_NEW_BLEND; 201} 202 203static void i915_set_stencil_ref( struct pipe_context *pipe, 204 const struct pipe_stencil_ref *stencil_ref ) 205{ 206 struct i915_context *i915 = i915_context(pipe); 207 draw_flush(i915->draw); 208 209 i915->stencil_ref = *stencil_ref; 210 211 i915->dirty |= I915_NEW_DEPTH_STENCIL; 212} 213 214static void * 215i915_create_sampler_state(struct pipe_context *pipe, 216 const struct pipe_sampler_state *sampler) 217{ 218 struct i915_sampler_state *cso = CALLOC_STRUCT( i915_sampler_state ); 219 const unsigned ws = sampler->wrap_s; 220 const unsigned wt = sampler->wrap_t; 221 const unsigned wr = sampler->wrap_r; 222 unsigned minFilt, magFilt; 223 unsigned mipFilt; 224 225 cso->templ = sampler; 226 227 mipFilt = translate_mip_filter(sampler->min_mip_filter); 228 minFilt = translate_img_filter( sampler->min_img_filter ); 229 magFilt = translate_img_filter( sampler->mag_img_filter ); 230 231 if (sampler->max_anisotropy > 1) 232 minFilt = magFilt = FILTER_ANISOTROPIC; 233 234 if (sampler->max_anisotropy > 2) { 235 cso->state[0] |= SS2_MAX_ANISO_4; 236 } 237 238 { 239 int b = (int) (sampler->lod_bias * 16.0); 240 b = CLAMP(b, -256, 255); 241 cso->state[0] |= ((b << SS2_LOD_BIAS_SHIFT) & SS2_LOD_BIAS_MASK); 242 } 243 244 /* Shadow: 245 */ 246 if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) 247 { 248 cso->state[0] |= (SS2_SHADOW_ENABLE | 249 i915_translate_compare_func(sampler->compare_func)); 250 251 minFilt = FILTER_4X4_FLAT; 252 magFilt = FILTER_4X4_FLAT; 253 } 254 255 cso->state[0] |= ((minFilt << SS2_MIN_FILTER_SHIFT) | 256 (mipFilt << SS2_MIP_FILTER_SHIFT) | 257 (magFilt << SS2_MAG_FILTER_SHIFT)); 258 259 cso->state[1] |= 260 ((translate_wrap_mode(ws) << SS3_TCX_ADDR_MODE_SHIFT) | 261 (translate_wrap_mode(wt) << SS3_TCY_ADDR_MODE_SHIFT) | 262 (translate_wrap_mode(wr) << SS3_TCZ_ADDR_MODE_SHIFT)); 263 264 if (sampler->normalized_coords) 265 cso->state[1] |= SS3_NORMALIZED_COORDS; 266 267 { 268 int minlod = (int) (16.0 * sampler->min_lod); 269 int maxlod = (int) (16.0 * sampler->max_lod); 270 minlod = CLAMP(minlod, 0, 16 * 11); 271 maxlod = CLAMP(maxlod, 0, 16 * 11); 272 273 if (minlod > maxlod) 274 maxlod = minlod; 275 276 cso->minlod = minlod; 277 cso->maxlod = maxlod; 278 } 279 280 { 281 ubyte r = float_to_ubyte(sampler->border_color[0]); 282 ubyte g = float_to_ubyte(sampler->border_color[1]); 283 ubyte b = float_to_ubyte(sampler->border_color[2]); 284 ubyte a = float_to_ubyte(sampler->border_color[3]); 285 cso->state[2] = I915PACKCOLOR8888(r, g, b, a); 286 } 287 return cso; 288} 289 290static void i915_fixup_bind_sampler_states(struct pipe_context *pipe, 291 unsigned num, void **sampler) 292{ 293 struct i915_context *i915 = i915_context(pipe); 294 295 i915->saved_nr_samplers = num; 296 memcpy(&i915->saved_samplers, sampler, sizeof(void *) * num); 297 298 i915->saved_bind_sampler_states(pipe, num, sampler); 299} 300 301static void i915_bind_sampler_states(struct pipe_context *pipe, 302 unsigned num, void **sampler) 303{ 304 struct i915_context *i915 = i915_context(pipe); 305 unsigned i; 306 307 /* Check for no-op */ 308 if (num == i915->num_samplers && 309 !memcmp(i915->sampler, sampler, num * sizeof(void *))) 310 return; 311 312 draw_flush(i915->draw); 313 314 for (i = 0; i < num; ++i) 315 i915->sampler[i] = sampler[i]; 316 for (i = num; i < PIPE_MAX_SAMPLERS; ++i) 317 i915->sampler[i] = NULL; 318 319 i915->num_samplers = num; 320 321 i915->dirty |= I915_NEW_SAMPLER; 322} 323 324static void i915_delete_sampler_state(struct pipe_context *pipe, 325 void *sampler) 326{ 327 FREE(sampler); 328} 329 330 331/** XXX move someday? Or consolidate all these simple state setters 332 * into one file. 333 */ 334 335static void * 336i915_create_depth_stencil_state(struct pipe_context *pipe, 337 const struct pipe_depth_stencil_alpha_state *depth_stencil) 338{ 339 struct i915_depth_stencil_state *cso = CALLOC_STRUCT( i915_depth_stencil_state ); 340 341 { 342 int testmask = depth_stencil->stencil[0].valuemask & 0xff; 343 int writemask = depth_stencil->stencil[0].writemask & 0xff; 344 345 cso->stencil_modes4 |= (_3DSTATE_MODES_4_CMD | 346 ENABLE_STENCIL_TEST_MASK | 347 STENCIL_TEST_MASK(testmask) | 348 ENABLE_STENCIL_WRITE_MASK | 349 STENCIL_WRITE_MASK(writemask)); 350 } 351 352 if (depth_stencil->stencil[0].enabled) { 353 int test = i915_translate_compare_func(depth_stencil->stencil[0].func); 354 int fop = i915_translate_stencil_op(depth_stencil->stencil[0].fail_op); 355 int dfop = i915_translate_stencil_op(depth_stencil->stencil[0].zfail_op); 356 int dpop = i915_translate_stencil_op(depth_stencil->stencil[0].zpass_op); 357 358 cso->stencil_LIS5 |= (S5_STENCIL_TEST_ENABLE | 359 S5_STENCIL_WRITE_ENABLE | 360 (test << S5_STENCIL_TEST_FUNC_SHIFT) | 361 (fop << S5_STENCIL_FAIL_SHIFT) | 362 (dfop << S5_STENCIL_PASS_Z_FAIL_SHIFT) | 363 (dpop << S5_STENCIL_PASS_Z_PASS_SHIFT)); 364 } 365 366 if (depth_stencil->stencil[1].enabled) { 367 int test = i915_translate_compare_func(depth_stencil->stencil[1].func); 368 int fop = i915_translate_stencil_op(depth_stencil->stencil[1].fail_op); 369 int dfop = i915_translate_stencil_op(depth_stencil->stencil[1].zfail_op); 370 int dpop = i915_translate_stencil_op(depth_stencil->stencil[1].zpass_op); 371 int tmask = depth_stencil->stencil[1].valuemask & 0xff; 372 int wmask = depth_stencil->stencil[1].writemask & 0xff; 373 374 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 375 BFO_ENABLE_STENCIL_FUNCS | 376 BFO_ENABLE_STENCIL_TWO_SIDE | 377 BFO_ENABLE_STENCIL_REF | 378 BFO_STENCIL_TWO_SIDE | 379 (test << BFO_STENCIL_TEST_SHIFT) | 380 (fop << BFO_STENCIL_FAIL_SHIFT) | 381 (dfop << BFO_STENCIL_PASS_Z_FAIL_SHIFT) | 382 (dpop << BFO_STENCIL_PASS_Z_PASS_SHIFT)); 383 384 cso->bfo[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS | 385 BFM_ENABLE_STENCIL_TEST_MASK | 386 BFM_ENABLE_STENCIL_WRITE_MASK | 387 (tmask << BFM_STENCIL_TEST_MASK_SHIFT) | 388 (wmask << BFM_STENCIL_WRITE_MASK_SHIFT)); 389 } 390 else { 391 /* This actually disables two-side stencil: The bit set is a 392 * modify-enable bit to indicate we are changing the two-side 393 * setting. Then there is a symbolic zero to show that we are 394 * setting the flag to zero/off. 395 */ 396 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 397 BFO_ENABLE_STENCIL_TWO_SIDE | 398 0); 399 cso->bfo[1] = 0; 400 } 401 402 if (depth_stencil->depth.enabled) { 403 int func = i915_translate_compare_func(depth_stencil->depth.func); 404 405 cso->depth_LIS6 |= (S6_DEPTH_TEST_ENABLE | 406 (func << S6_DEPTH_TEST_FUNC_SHIFT)); 407 408 if (depth_stencil->depth.writemask) 409 cso->depth_LIS6 |= S6_DEPTH_WRITE_ENABLE; 410 } 411 412 if (depth_stencil->alpha.enabled) { 413 int test = i915_translate_compare_func(depth_stencil->alpha.func); 414 ubyte refByte = float_to_ubyte(depth_stencil->alpha.ref_value); 415 416 cso->depth_LIS6 |= (S6_ALPHA_TEST_ENABLE | 417 (test << S6_ALPHA_TEST_FUNC_SHIFT) | 418 (((unsigned) refByte) << S6_ALPHA_REF_SHIFT)); 419 } 420 421 return cso; 422} 423 424static void i915_bind_depth_stencil_state(struct pipe_context *pipe, 425 void *depth_stencil) 426{ 427 struct i915_context *i915 = i915_context(pipe); 428 draw_flush(i915->draw); 429 430 i915->depth_stencil = (const struct i915_depth_stencil_state *)depth_stencil; 431 432 i915->dirty |= I915_NEW_DEPTH_STENCIL; 433} 434 435static void i915_delete_depth_stencil_state(struct pipe_context *pipe, 436 void *depth_stencil) 437{ 438 FREE(depth_stencil); 439} 440 441 442static void i915_set_scissor_state( struct pipe_context *pipe, 443 const struct pipe_scissor_state *scissor ) 444{ 445 struct i915_context *i915 = i915_context(pipe); 446 draw_flush(i915->draw); 447 448 memcpy( &i915->scissor, scissor, sizeof(*scissor) ); 449 i915->dirty |= I915_NEW_SCISSOR; 450} 451 452 453static void i915_set_polygon_stipple( struct pipe_context *pipe, 454 const struct pipe_poly_stipple *stipple ) 455{ 456} 457 458 459 460static void * 461i915_create_fs_state(struct pipe_context *pipe, 462 const struct pipe_shader_state *templ) 463{ 464 struct i915_context *i915 = i915_context(pipe); 465 struct i915_fragment_shader *ifs = CALLOC_STRUCT(i915_fragment_shader); 466 if (!ifs) 467 return NULL; 468 469 ifs->draw_data = draw_create_fragment_shader(i915->draw, templ); 470 ifs->state.tokens = tgsi_dup_tokens(templ->tokens); 471 472 tgsi_scan_shader(templ->tokens, &ifs->info); 473 474 /* The shader's compiled to i915 instructions here */ 475 i915_translate_fragment_program(i915, ifs); 476 477 return ifs; 478} 479 480static void 481i915_fixup_bind_fs_state(struct pipe_context *pipe, void *shader) 482{ 483 struct i915_context *i915 = i915_context(pipe); 484 draw_flush(i915->draw); 485 486 i915->saved_fs = shader; 487 488 i915->saved_bind_fs_state(pipe, shader); 489} 490 491static void 492i915_bind_fs_state(struct pipe_context *pipe, void *shader) 493{ 494 struct i915_context *i915 = i915_context(pipe); 495 draw_flush(i915->draw); 496 497 i915->fs = (struct i915_fragment_shader*) shader; 498 499 draw_bind_fragment_shader(i915->draw, (i915->fs ? i915->fs->draw_data : NULL)); 500 501 i915->dirty |= I915_NEW_FS; 502} 503 504static 505void i915_delete_fs_state(struct pipe_context *pipe, void *shader) 506{ 507 struct i915_fragment_shader *ifs = (struct i915_fragment_shader *) shader; 508 509 if (ifs->program) 510 FREE(ifs->program); 511 ifs->program_len = 0; 512 513 FREE((struct tgsi_token *)ifs->state.tokens); 514 515 FREE(ifs); 516} 517 518 519static void * 520i915_create_vs_state(struct pipe_context *pipe, 521 const struct pipe_shader_state *templ) 522{ 523 struct i915_context *i915 = i915_context(pipe); 524 525 /* just pass-through to draw module */ 526 return draw_create_vertex_shader(i915->draw, templ); 527} 528 529static void i915_bind_vs_state(struct pipe_context *pipe, void *shader) 530{ 531 struct i915_context *i915 = i915_context(pipe); 532 533 i915->saved_vs = shader; 534 535 /* just pass-through to draw module */ 536 draw_bind_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 537 538 i915->dirty |= I915_NEW_VS; 539} 540 541static void i915_delete_vs_state(struct pipe_context *pipe, void *shader) 542{ 543 struct i915_context *i915 = i915_context(pipe); 544 545 /* just pass-through to draw module */ 546 draw_delete_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 547} 548 549static void i915_set_constant_buffer(struct pipe_context *pipe, 550 uint shader, uint index, 551 struct pipe_resource *buf) 552{ 553 struct i915_context *i915 = i915_context(pipe); 554 unsigned new_num = 0; 555 boolean diff = TRUE; 556 557 558 /* XXX don't support geom shaders now */ 559 if (shader == PIPE_SHADER_GEOMETRY) 560 return; 561 562 /* if we have a new buffer compare it with the old one */ 563 if (buf) { 564 struct i915_buffer *ibuf = i915_buffer(buf); 565 struct pipe_resource *old_buf = i915->constants[shader]; 566 struct i915_buffer *old = old_buf ? i915_buffer(old_buf) : NULL; 567 unsigned old_num = i915->current.num_user_constants[shader]; 568 569 new_num = ibuf->b.b.width0 / 4 * sizeof(float); 570 571 if (old_num == new_num) { 572 if (old_num == 0) 573 diff = FALSE; 574#if 0 575 /* XXX no point in running this code since st/mesa only uses user buffers */ 576 /* Can't compare the buffer data since they are userbuffers */ 577 else if (old && old->free_on_destroy) 578 diff = memcmp(old->data, ibuf->data, ibuf->b.b.width0); 579#else 580 (void)old; 581#endif 582 } 583 } else { 584 diff = i915->current.num_user_constants[shader] != 0; 585 } 586 587 /* 588 * flush before updateing the state. 589 */ 590 if (diff && shader == PIPE_SHADER_FRAGMENT) 591 draw_flush(i915->draw); 592 593 pipe_resource_reference(&i915->constants[shader], buf); 594 i915->current.num_user_constants[shader] = new_num; 595 596 if (diff) 597 i915->dirty |= shader == PIPE_SHADER_VERTEX ? I915_NEW_VS_CONSTANTS : I915_NEW_FS_CONSTANTS; 598} 599 600 601static void 602i915_fixup_set_fragment_sampler_views(struct pipe_context *pipe, 603 unsigned num, 604 struct pipe_sampler_view **views) 605{ 606 struct i915_context *i915 = i915_context(pipe); 607 int i; 608 609 for (i = 0; i < num; i++) 610 pipe_sampler_view_reference(&i915->saved_sampler_views[i], 611 views[i]); 612 613 for (i = num; i < i915->saved_nr_sampler_views; i++) 614 pipe_sampler_view_reference(&i915->saved_sampler_views[i], 615 NULL); 616 617 i915->saved_nr_sampler_views = num; 618 619 i915->saved_set_sampler_views(pipe, num, views); 620} 621 622static void i915_set_fragment_sampler_views(struct pipe_context *pipe, 623 unsigned num, 624 struct pipe_sampler_view **views) 625{ 626 struct i915_context *i915 = i915_context(pipe); 627 uint i; 628 629 assert(num <= PIPE_MAX_SAMPLERS); 630 631 /* Check for no-op */ 632 if (num == i915->num_fragment_sampler_views && 633 !memcmp(i915->fragment_sampler_views, views, num * sizeof(struct pipe_sampler_view *))) 634 return; 635 636 /* Fixes wrong texture in texobj with VBUF */ 637 draw_flush(i915->draw); 638 639 for (i = 0; i < num; i++) 640 pipe_sampler_view_reference(&i915->fragment_sampler_views[i], 641 views[i]); 642 643 for (i = num; i < i915->num_fragment_sampler_views; i++) 644 pipe_sampler_view_reference(&i915->fragment_sampler_views[i], 645 NULL); 646 647 i915->num_fragment_sampler_views = num; 648 649 i915->dirty |= I915_NEW_SAMPLER_VIEW; 650} 651 652 653static struct pipe_sampler_view * 654i915_create_sampler_view(struct pipe_context *pipe, 655 struct pipe_resource *texture, 656 const struct pipe_sampler_view *templ) 657{ 658 struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view); 659 660 if (view) { 661 *view = *templ; 662 view->reference.count = 1; 663 view->texture = NULL; 664 pipe_resource_reference(&view->texture, texture); 665 view->context = pipe; 666 } 667 668 return view; 669} 670 671 672static void 673i915_sampler_view_destroy(struct pipe_context *pipe, 674 struct pipe_sampler_view *view) 675{ 676 pipe_resource_reference(&view->texture, NULL); 677 FREE(view); 678} 679 680 681static void i915_set_framebuffer_state(struct pipe_context *pipe, 682 const struct pipe_framebuffer_state *fb) 683{ 684 struct i915_context *i915 = i915_context(pipe); 685 int i; 686 687 draw_flush(i915->draw); 688 689 i915->framebuffer.width = fb->width; 690 i915->framebuffer.height = fb->height; 691 i915->framebuffer.nr_cbufs = fb->nr_cbufs; 692 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { 693 pipe_surface_reference(&i915->framebuffer.cbufs[i], 694 i < fb->nr_cbufs ? fb->cbufs[i] : NULL); 695 } 696 pipe_surface_reference(&i915->framebuffer.zsbuf, fb->zsbuf); 697 698 i915->dirty |= I915_NEW_FRAMEBUFFER; 699} 700 701 702 703static void i915_set_clip_state( struct pipe_context *pipe, 704 const struct pipe_clip_state *clip ) 705{ 706 struct i915_context *i915 = i915_context(pipe); 707 draw_flush(i915->draw); 708 709 i915->saved_clip = *clip; 710 711 draw_set_clip_state(i915->draw, clip); 712 713 i915->dirty |= I915_NEW_CLIP; 714} 715 716 717 718/* Called when driver state tracker notices changes to the viewport 719 * matrix: 720 */ 721static void i915_set_viewport_state( struct pipe_context *pipe, 722 const struct pipe_viewport_state *viewport ) 723{ 724 struct i915_context *i915 = i915_context(pipe); 725 726 i915->viewport = *viewport; /* struct copy */ 727 728 /* pass the viewport info to the draw module */ 729 draw_set_viewport_state(i915->draw, &i915->viewport); 730 731 i915->dirty |= I915_NEW_VIEWPORT; 732} 733 734 735static void * 736i915_create_rasterizer_state(struct pipe_context *pipe, 737 const struct pipe_rasterizer_state *rasterizer) 738{ 739 struct i915_rasterizer_state *cso = CALLOC_STRUCT( i915_rasterizer_state ); 740 741 cso->templ = *rasterizer; 742 cso->color_interp = rasterizer->flatshade ? INTERP_CONSTANT : INTERP_LINEAR; 743 cso->light_twoside = rasterizer->light_twoside; 744 cso->ds[0].u = _3DSTATE_DEPTH_OFFSET_SCALE; 745 cso->ds[1].f = rasterizer->offset_scale; 746 if (rasterizer->poly_stipple_enable) { 747 cso->st |= ST1_ENABLE; 748 } 749 750 if (rasterizer->scissor) 751 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT; 752 else 753 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT; 754 755 switch (rasterizer->cull_face) { 756 case PIPE_FACE_NONE: 757 cso->LIS4 |= S4_CULLMODE_NONE; 758 break; 759 case PIPE_FACE_FRONT: 760 if (rasterizer->front_ccw) 761 cso->LIS4 |= S4_CULLMODE_CCW; 762 else 763 cso->LIS4 |= S4_CULLMODE_CW; 764 break; 765 case PIPE_FACE_BACK: 766 if (rasterizer->front_ccw) 767 cso->LIS4 |= S4_CULLMODE_CW; 768 else 769 cso->LIS4 |= S4_CULLMODE_CCW; 770 break; 771 case PIPE_FACE_FRONT_AND_BACK: 772 cso->LIS4 |= S4_CULLMODE_BOTH; 773 break; 774 } 775 776 { 777 int line_width = CLAMP((int)(rasterizer->line_width * 2), 1, 0xf); 778 779 cso->LIS4 |= line_width << S4_LINE_WIDTH_SHIFT; 780 781 if (rasterizer->line_smooth) 782 cso->LIS4 |= S4_LINE_ANTIALIAS_ENABLE; 783 } 784 785 { 786 int point_size = CLAMP((int) rasterizer->point_size, 1, 0xff); 787 788 cso->LIS4 |= point_size << S4_POINT_WIDTH_SHIFT; 789 } 790 791 if (rasterizer->flatshade) { 792 cso->LIS4 |= (S4_FLATSHADE_ALPHA | 793 S4_FLATSHADE_COLOR | 794 S4_FLATSHADE_SPECULAR); 795 } 796 797 cso->LIS7 = fui( rasterizer->offset_units ); 798 799 800 return cso; 801} 802 803static void i915_bind_rasterizer_state( struct pipe_context *pipe, 804 void *raster ) 805{ 806 struct i915_context *i915 = i915_context(pipe); 807 808 i915->rasterizer = (struct i915_rasterizer_state *)raster; 809 810 /* pass-through to draw module */ 811 draw_set_rasterizer_state(i915->draw, 812 (i915->rasterizer ? &(i915->rasterizer->templ) : NULL), 813 raster); 814 815 i915->dirty |= I915_NEW_RASTERIZER; 816} 817 818static void i915_delete_rasterizer_state(struct pipe_context *pipe, 819 void *raster) 820{ 821 FREE(raster); 822} 823 824static void i915_set_vertex_buffers(struct pipe_context *pipe, 825 unsigned count, 826 const struct pipe_vertex_buffer *buffers) 827{ 828 struct i915_context *i915 = i915_context(pipe); 829 struct draw_context *draw = i915->draw; 830 int i; 831 832 util_copy_vertex_buffers(i915->saved_vertex_buffers, 833 &i915->saved_nr_vertex_buffers, 834 buffers, count); 835#if 0 836 /* XXX doesn't look like this is needed */ 837 /* unmap old */ 838 for (i = 0; i < i915->num_vertex_buffers; i++) { 839 draw_set_mapped_vertex_buffer(draw, i, NULL); 840 } 841#endif 842 843 /* pass-through to draw module */ 844 draw_set_vertex_buffers(draw, count, buffers); 845 846 /* map new */ 847 for (i = 0; i < count; i++) { 848 void *buf = i915_buffer(buffers[i].buffer)->data; 849 draw_set_mapped_vertex_buffer(draw, i, buf); 850 } 851} 852 853static void * 854i915_create_vertex_elements_state(struct pipe_context *pipe, 855 unsigned count, 856 const struct pipe_vertex_element *attribs) 857{ 858 struct i915_velems_state *velems; 859 assert(count <= PIPE_MAX_ATTRIBS); 860 velems = (struct i915_velems_state *) MALLOC(sizeof(struct i915_velems_state)); 861 if (velems) { 862 velems->count = count; 863 memcpy(velems->velem, attribs, sizeof(*attribs) * count); 864 } 865 return velems; 866} 867 868static void 869i915_bind_vertex_elements_state(struct pipe_context *pipe, 870 void *velems) 871{ 872 struct i915_context *i915 = i915_context(pipe); 873 struct i915_velems_state *i915_velems = (struct i915_velems_state *) velems; 874 875 i915->saved_velems = velems; 876 877 /* pass-through to draw module */ 878 if (i915_velems) { 879 draw_set_vertex_elements(i915->draw, 880 i915_velems->count, i915_velems->velem); 881 } 882} 883 884static void 885i915_delete_vertex_elements_state(struct pipe_context *pipe, void *velems) 886{ 887 FREE( velems ); 888} 889 890static void i915_set_index_buffer(struct pipe_context *pipe, 891 const struct pipe_index_buffer *ib) 892{ 893 struct i915_context *i915 = i915_context(pipe); 894 895 if (ib) 896 memcpy(&i915->index_buffer, ib, sizeof(i915->index_buffer)); 897 else 898 memset(&i915->index_buffer, 0, sizeof(i915->index_buffer)); 899 900 /* pass-through to draw module */ 901 draw_set_index_buffer(i915->draw, ib); 902} 903 904static void 905i915_set_sample_mask(struct pipe_context *pipe, 906 unsigned sample_mask) 907{ 908} 909 910void 911i915_init_state_functions( struct i915_context *i915 ) 912{ 913 i915->base.create_blend_state = i915_create_blend_state; 914 i915->base.bind_blend_state = i915_bind_blend_state; 915 i915->base.delete_blend_state = i915_delete_blend_state; 916 917 i915->base.create_sampler_state = i915_create_sampler_state; 918 i915->base.bind_fragment_sampler_states = i915_bind_sampler_states; 919 i915->base.delete_sampler_state = i915_delete_sampler_state; 920 921 i915->base.create_depth_stencil_alpha_state = i915_create_depth_stencil_state; 922 i915->base.bind_depth_stencil_alpha_state = i915_bind_depth_stencil_state; 923 i915->base.delete_depth_stencil_alpha_state = i915_delete_depth_stencil_state; 924 925 i915->base.create_rasterizer_state = i915_create_rasterizer_state; 926 i915->base.bind_rasterizer_state = i915_bind_rasterizer_state; 927 i915->base.delete_rasterizer_state = i915_delete_rasterizer_state; 928 i915->base.create_fs_state = i915_create_fs_state; 929 i915->base.bind_fs_state = i915_bind_fs_state; 930 i915->base.delete_fs_state = i915_delete_fs_state; 931 i915->base.create_vs_state = i915_create_vs_state; 932 i915->base.bind_vs_state = i915_bind_vs_state; 933 i915->base.delete_vs_state = i915_delete_vs_state; 934 i915->base.create_vertex_elements_state = i915_create_vertex_elements_state; 935 i915->base.bind_vertex_elements_state = i915_bind_vertex_elements_state; 936 i915->base.delete_vertex_elements_state = i915_delete_vertex_elements_state; 937 938 i915->base.set_blend_color = i915_set_blend_color; 939 i915->base.set_stencil_ref = i915_set_stencil_ref; 940 i915->base.set_clip_state = i915_set_clip_state; 941 i915->base.set_sample_mask = i915_set_sample_mask; 942 i915->base.set_constant_buffer = i915_set_constant_buffer; 943 i915->base.set_framebuffer_state = i915_set_framebuffer_state; 944 945 i915->base.set_polygon_stipple = i915_set_polygon_stipple; 946 i915->base.set_scissor_state = i915_set_scissor_state; 947 i915->base.set_fragment_sampler_views = i915_set_fragment_sampler_views; 948 i915->base.create_sampler_view = i915_create_sampler_view; 949 i915->base.sampler_view_destroy = i915_sampler_view_destroy; 950 i915->base.set_viewport_state = i915_set_viewport_state; 951 i915->base.set_vertex_buffers = i915_set_vertex_buffers; 952 i915->base.set_index_buffer = i915_set_index_buffer; 953 i915->base.redefine_user_buffer = u_default_redefine_user_buffer; 954} 955 956void 957i915_init_fixup_state_functions( struct i915_context *i915 ) 958{ 959 i915->saved_bind_fs_state = i915->base.bind_fs_state; 960 i915->base.bind_fs_state = i915_fixup_bind_fs_state; 961 i915->saved_bind_sampler_states = i915->base.bind_fragment_sampler_states; 962 i915->base.bind_fragment_sampler_states = i915_fixup_bind_sampler_states; 963 i915->saved_set_sampler_views = i915->base.set_fragment_sampler_views; 964 i915->base.set_fragment_sampler_views = i915_fixup_set_fragment_sampler_views; 965} 966