i915_state.c revision 832029e1c1c027e8f697cc8fdc75902e3c24f38a
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 "tgsi/tgsi_parse.h" 37 38#include "i915_context.h" 39#include "i915_reg.h" 40#include "i915_state_inlines.h" 41#include "i915_fpc.h" 42#include "i915_resource.h" 43 44/* The i915 (and related graphics cores) do not support GL_CLAMP. The 45 * Intel drivers for "other operating systems" implement GL_CLAMP as 46 * GL_CLAMP_TO_EDGE, so the same is done here. 47 */ 48static unsigned 49translate_wrap_mode(unsigned wrap) 50{ 51 switch (wrap) { 52 case PIPE_TEX_WRAP_REPEAT: 53 return TEXCOORDMODE_WRAP; 54 case PIPE_TEX_WRAP_CLAMP: 55 return TEXCOORDMODE_CLAMP_EDGE; /* not quite correct */ 56 case PIPE_TEX_WRAP_CLAMP_TO_EDGE: 57 return TEXCOORDMODE_CLAMP_EDGE; 58 case PIPE_TEX_WRAP_CLAMP_TO_BORDER: 59 return TEXCOORDMODE_CLAMP_BORDER; 60 /* 61 case PIPE_TEX_WRAP_MIRRORED_REPEAT: 62 return TEXCOORDMODE_MIRROR; 63 */ 64 default: 65 return TEXCOORDMODE_WRAP; 66 } 67} 68 69static unsigned translate_img_filter( unsigned filter ) 70{ 71 switch (filter) { 72 case PIPE_TEX_FILTER_NEAREST: 73 return FILTER_NEAREST; 74 case PIPE_TEX_FILTER_LINEAR: 75 return FILTER_LINEAR; 76 default: 77 assert(0); 78 return FILTER_NEAREST; 79 } 80} 81 82static unsigned translate_mip_filter( unsigned filter ) 83{ 84 switch (filter) { 85 case PIPE_TEX_MIPFILTER_NONE: 86 return MIPFILTER_NONE; 87 case PIPE_TEX_MIPFILTER_NEAREST: 88 return MIPFILTER_NEAREST; 89 case PIPE_TEX_MIPFILTER_LINEAR: 90 return MIPFILTER_LINEAR; 91 default: 92 assert(0); 93 return MIPFILTER_NONE; 94 } 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 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_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_bind_sampler_states(struct pipe_context *pipe, 292 unsigned num, void **sampler) 293{ 294 struct i915_context *i915 = i915_context(pipe); 295 unsigned i; 296 297 /* Check for no-op */ 298 if (num == i915->num_samplers && 299 !memcmp(i915->sampler, sampler, num * sizeof(void *))) 300 return; 301 302 draw_flush(i915->draw); 303 304 for (i = 0; i < num; ++i) 305 i915->sampler[i] = sampler[i]; 306 for (i = num; i < PIPE_MAX_SAMPLERS; ++i) 307 i915->sampler[i] = NULL; 308 309 i915->num_samplers = num; 310 311 i915->dirty |= I915_NEW_SAMPLER; 312} 313 314static void i915_delete_sampler_state(struct pipe_context *pipe, 315 void *sampler) 316{ 317 FREE(sampler); 318} 319 320 321/** XXX move someday? Or consolidate all these simple state setters 322 * into one file. 323 */ 324 325static void * 326i915_create_depth_stencil_state(struct pipe_context *pipe, 327 const struct pipe_depth_stencil_alpha_state *depth_stencil) 328{ 329 struct i915_depth_stencil_state *cso = CALLOC_STRUCT( i915_depth_stencil_state ); 330 331 { 332 int testmask = depth_stencil->stencil[0].valuemask & 0xff; 333 int writemask = depth_stencil->stencil[0].writemask & 0xff; 334 335 cso->stencil_modes4 |= (_3DSTATE_MODES_4_CMD | 336 ENABLE_STENCIL_TEST_MASK | 337 STENCIL_TEST_MASK(testmask) | 338 ENABLE_STENCIL_WRITE_MASK | 339 STENCIL_WRITE_MASK(writemask)); 340 } 341 342 if (depth_stencil->stencil[0].enabled) { 343 int test = i915_translate_compare_func(depth_stencil->stencil[0].func); 344 int fop = i915_translate_stencil_op(depth_stencil->stencil[0].fail_op); 345 int dfop = i915_translate_stencil_op(depth_stencil->stencil[0].zfail_op); 346 int dpop = i915_translate_stencil_op(depth_stencil->stencil[0].zpass_op); 347 348 cso->stencil_LIS5 |= (S5_STENCIL_TEST_ENABLE | 349 S5_STENCIL_WRITE_ENABLE | 350 (test << S5_STENCIL_TEST_FUNC_SHIFT) | 351 (fop << S5_STENCIL_FAIL_SHIFT) | 352 (dfop << S5_STENCIL_PASS_Z_FAIL_SHIFT) | 353 (dpop << S5_STENCIL_PASS_Z_PASS_SHIFT)); 354 } 355 356 if (depth_stencil->stencil[1].enabled) { 357 int test = i915_translate_compare_func(depth_stencil->stencil[1].func); 358 int fop = i915_translate_stencil_op(depth_stencil->stencil[1].fail_op); 359 int dfop = i915_translate_stencil_op(depth_stencil->stencil[1].zfail_op); 360 int dpop = i915_translate_stencil_op(depth_stencil->stencil[1].zpass_op); 361 int tmask = depth_stencil->stencil[1].valuemask & 0xff; 362 int wmask = depth_stencil->stencil[1].writemask & 0xff; 363 364 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 365 BFO_ENABLE_STENCIL_FUNCS | 366 BFO_ENABLE_STENCIL_TWO_SIDE | 367 BFO_ENABLE_STENCIL_REF | 368 BFO_STENCIL_TWO_SIDE | 369 (test << BFO_STENCIL_TEST_SHIFT) | 370 (fop << BFO_STENCIL_FAIL_SHIFT) | 371 (dfop << BFO_STENCIL_PASS_Z_FAIL_SHIFT) | 372 (dpop << BFO_STENCIL_PASS_Z_PASS_SHIFT)); 373 374 cso->bfo[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS | 375 BFM_ENABLE_STENCIL_TEST_MASK | 376 BFM_ENABLE_STENCIL_WRITE_MASK | 377 (tmask << BFM_STENCIL_TEST_MASK_SHIFT) | 378 (wmask << BFM_STENCIL_WRITE_MASK_SHIFT)); 379 } 380 else { 381 /* This actually disables two-side stencil: The bit set is a 382 * modify-enable bit to indicate we are changing the two-side 383 * setting. Then there is a symbolic zero to show that we are 384 * setting the flag to zero/off. 385 */ 386 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 387 BFO_ENABLE_STENCIL_TWO_SIDE | 388 0); 389 cso->bfo[1] = 0; 390 } 391 392 if (depth_stencil->depth.enabled) { 393 int func = i915_translate_compare_func(depth_stencil->depth.func); 394 395 cso->depth_LIS6 |= (S6_DEPTH_TEST_ENABLE | 396 (func << S6_DEPTH_TEST_FUNC_SHIFT)); 397 398 if (depth_stencil->depth.writemask) 399 cso->depth_LIS6 |= S6_DEPTH_WRITE_ENABLE; 400 } 401 402 if (depth_stencil->alpha.enabled) { 403 int test = i915_translate_compare_func(depth_stencil->alpha.func); 404 ubyte refByte = float_to_ubyte(depth_stencil->alpha.ref_value); 405 406 cso->depth_LIS6 |= (S6_ALPHA_TEST_ENABLE | 407 (test << S6_ALPHA_TEST_FUNC_SHIFT) | 408 (((unsigned) refByte) << S6_ALPHA_REF_SHIFT)); 409 } 410 411 return cso; 412} 413 414static void i915_bind_depth_stencil_state(struct pipe_context *pipe, 415 void *depth_stencil) 416{ 417 struct i915_context *i915 = i915_context(pipe); 418 draw_flush(i915->draw); 419 420 i915->depth_stencil = (const struct i915_depth_stencil_state *)depth_stencil; 421 422 i915->dirty |= I915_NEW_DEPTH_STENCIL; 423} 424 425static void i915_delete_depth_stencil_state(struct pipe_context *pipe, 426 void *depth_stencil) 427{ 428 FREE(depth_stencil); 429} 430 431 432static void i915_set_scissor_state( struct pipe_context *pipe, 433 const struct pipe_scissor_state *scissor ) 434{ 435 struct i915_context *i915 = i915_context(pipe); 436 draw_flush(i915->draw); 437 438 memcpy( &i915->scissor, scissor, sizeof(*scissor) ); 439 i915->dirty |= I915_NEW_SCISSOR; 440} 441 442 443static void i915_set_polygon_stipple( struct pipe_context *pipe, 444 const struct pipe_poly_stipple *stipple ) 445{ 446} 447 448 449 450static void * 451i915_create_fs_state(struct pipe_context *pipe, 452 const struct pipe_shader_state *templ) 453{ 454 struct i915_context *i915 = i915_context(pipe); 455 struct i915_fragment_shader *ifs = CALLOC_STRUCT(i915_fragment_shader); 456 if (!ifs) 457 return NULL; 458 459 ifs->state.tokens = tgsi_dup_tokens(templ->tokens); 460 461 tgsi_scan_shader(templ->tokens, &ifs->info); 462 463 /* The shader's compiled to i915 instructions here */ 464 i915_translate_fragment_program(i915, ifs); 465 466 return ifs; 467} 468 469static void 470i915_bind_fs_state(struct pipe_context *pipe, void *shader) 471{ 472 struct i915_context *i915 = i915_context(pipe); 473 draw_flush(i915->draw); 474 475 i915->fs = (struct i915_fragment_shader*) shader; 476 477 i915->dirty |= I915_NEW_FS; 478} 479 480static 481void i915_delete_fs_state(struct pipe_context *pipe, void *shader) 482{ 483 struct i915_fragment_shader *ifs = (struct i915_fragment_shader *) shader; 484 485 if (ifs->program) 486 FREE(ifs->program); 487 ifs->program_len = 0; 488 489 FREE((struct tgsi_token *)ifs->state.tokens); 490 491 FREE(ifs); 492} 493 494 495static void * 496i915_create_vs_state(struct pipe_context *pipe, 497 const struct pipe_shader_state *templ) 498{ 499 struct i915_context *i915 = i915_context(pipe); 500 501 /* just pass-through to draw module */ 502 return draw_create_vertex_shader(i915->draw, templ); 503} 504 505static void i915_bind_vs_state(struct pipe_context *pipe, void *shader) 506{ 507 struct i915_context *i915 = i915_context(pipe); 508 509 /* just pass-through to draw module */ 510 draw_bind_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 511 512 i915->dirty |= I915_NEW_VS; 513} 514 515static void i915_delete_vs_state(struct pipe_context *pipe, void *shader) 516{ 517 struct i915_context *i915 = i915_context(pipe); 518 519 /* just pass-through to draw module */ 520 draw_delete_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 521} 522 523static void i915_set_constant_buffer(struct pipe_context *pipe, 524 uint shader, uint index, 525 struct pipe_resource *buf) 526{ 527 struct i915_context *i915 = i915_context(pipe); 528 unsigned new_num = 0; 529 boolean diff = TRUE; 530 531 532 /* XXX don't support geom shaders now */ 533 if (shader == PIPE_SHADER_GEOMETRY) 534 return; 535 536 /* if we have a new buffer compare it with the old one */ 537 if (buf) { 538 struct i915_buffer *ibuf = i915_buffer(buf); 539 struct pipe_resource *old_buf = i915->constants[shader]; 540 struct i915_buffer *old = old_buf ? i915_buffer(old_buf) : NULL; 541 unsigned old_num = i915->current.num_user_constants[shader]; 542 543 new_num = ibuf->b.b.width0 / 4 * sizeof(float); 544 545 if (old_num == new_num) { 546 if (old_num == 0) 547 diff = FALSE; 548#if 0 549 /* XXX no point in running this code since st/mesa only uses user buffers */ 550 /* Can't compare the buffer data since they are userbuffers */ 551 else if (old && old->free_on_destroy) 552 diff = memcmp(old->data, ibuf->data, ibuf->b.b.width0); 553#else 554 (void)old; 555#endif 556 } 557 } else { 558 diff = i915->current.num_user_constants[shader] != 0; 559 } 560 561 /* 562 * flush before updateing the state. 563 */ 564 if (diff && shader == PIPE_SHADER_FRAGMENT) 565 draw_flush(i915->draw); 566 567 pipe_resource_reference(&i915->constants[shader], buf); 568 i915->current.num_user_constants[shader] = new_num; 569 570 if (diff) 571 i915->dirty |= shader == PIPE_SHADER_VERTEX ? I915_NEW_VS_CONSTANTS : I915_NEW_FS_CONSTANTS; 572} 573 574 575static void i915_set_fragment_sampler_views(struct pipe_context *pipe, 576 unsigned num, 577 struct pipe_sampler_view **views) 578{ 579 struct i915_context *i915 = i915_context(pipe); 580 uint i; 581 582 assert(num <= PIPE_MAX_SAMPLERS); 583 584 /* Check for no-op */ 585 if (num == i915->num_fragment_sampler_views && 586 !memcmp(i915->fragment_sampler_views, views, num * sizeof(struct pipe_sampler_view *))) 587 return; 588 589 /* Fixes wrong texture in texobj with VBUF */ 590 draw_flush(i915->draw); 591 592 for (i = 0; i < num; i++) 593 pipe_sampler_view_reference(&i915->fragment_sampler_views[i], 594 views[i]); 595 596 for (i = num; i < i915->num_fragment_sampler_views; i++) 597 pipe_sampler_view_reference(&i915->fragment_sampler_views[i], 598 NULL); 599 600 i915->num_fragment_sampler_views = num; 601 602 i915->dirty |= I915_NEW_SAMPLER_VIEW; 603} 604 605 606static struct pipe_sampler_view * 607i915_create_sampler_view(struct pipe_context *pipe, 608 struct pipe_resource *texture, 609 const struct pipe_sampler_view *templ) 610{ 611 struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view); 612 613 if (view) { 614 *view = *templ; 615 view->reference.count = 1; 616 view->texture = NULL; 617 pipe_resource_reference(&view->texture, texture); 618 view->context = pipe; 619 } 620 621 return view; 622} 623 624 625static void 626i915_sampler_view_destroy(struct pipe_context *pipe, 627 struct pipe_sampler_view *view) 628{ 629 pipe_resource_reference(&view->texture, NULL); 630 FREE(view); 631} 632 633 634static void i915_set_framebuffer_state(struct pipe_context *pipe, 635 const struct pipe_framebuffer_state *fb) 636{ 637 struct i915_context *i915 = i915_context(pipe); 638 int i; 639 640 draw_flush(i915->draw); 641 642 i915->framebuffer.width = fb->width; 643 i915->framebuffer.height = fb->height; 644 i915->framebuffer.nr_cbufs = fb->nr_cbufs; 645 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { 646 pipe_surface_reference(&i915->framebuffer.cbufs[i], fb->cbufs[i]); 647 } 648 pipe_surface_reference(&i915->framebuffer.zsbuf, fb->zsbuf); 649 650 i915->dirty |= I915_NEW_FRAMEBUFFER; 651} 652 653 654 655static void i915_set_clip_state( struct pipe_context *pipe, 656 const struct pipe_clip_state *clip ) 657{ 658 struct i915_context *i915 = i915_context(pipe); 659 draw_flush(i915->draw); 660 661 draw_set_clip_state(i915->draw, clip); 662 663 i915->dirty |= I915_NEW_CLIP; 664} 665 666 667 668/* Called when driver state tracker notices changes to the viewport 669 * matrix: 670 */ 671static void i915_set_viewport_state( struct pipe_context *pipe, 672 const struct pipe_viewport_state *viewport ) 673{ 674 struct i915_context *i915 = i915_context(pipe); 675 676 i915->viewport = *viewport; /* struct copy */ 677 678 /* pass the viewport info to the draw module */ 679 draw_set_viewport_state(i915->draw, &i915->viewport); 680 681 i915->dirty |= I915_NEW_VIEWPORT; 682} 683 684 685static void * 686i915_create_rasterizer_state(struct pipe_context *pipe, 687 const struct pipe_rasterizer_state *rasterizer) 688{ 689 struct i915_rasterizer_state *cso = CALLOC_STRUCT( i915_rasterizer_state ); 690 691 cso->templ = rasterizer; 692 cso->color_interp = rasterizer->flatshade ? INTERP_CONSTANT : INTERP_LINEAR; 693 cso->light_twoside = rasterizer->light_twoside; 694 cso->ds[0].u = _3DSTATE_DEPTH_OFFSET_SCALE; 695 cso->ds[1].f = rasterizer->offset_scale; 696 if (rasterizer->poly_stipple_enable) { 697 cso->st |= ST1_ENABLE; 698 } 699 700 if (rasterizer->scissor) 701 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT; 702 else 703 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT; 704 705 switch (rasterizer->cull_face) { 706 case PIPE_FACE_NONE: 707 cso->LIS4 |= S4_CULLMODE_NONE; 708 break; 709 case PIPE_FACE_FRONT: 710 if (rasterizer->front_ccw) 711 cso->LIS4 |= S4_CULLMODE_CCW; 712 else 713 cso->LIS4 |= S4_CULLMODE_CW; 714 break; 715 case PIPE_FACE_BACK: 716 if (rasterizer->front_ccw) 717 cso->LIS4 |= S4_CULLMODE_CW; 718 else 719 cso->LIS4 |= S4_CULLMODE_CCW; 720 break; 721 case PIPE_FACE_FRONT_AND_BACK: 722 cso->LIS4 |= S4_CULLMODE_BOTH; 723 break; 724 } 725 726 { 727 int line_width = CLAMP((int)(rasterizer->line_width * 2), 1, 0xf); 728 729 cso->LIS4 |= line_width << S4_LINE_WIDTH_SHIFT; 730 731 if (rasterizer->line_smooth) 732 cso->LIS4 |= S4_LINE_ANTIALIAS_ENABLE; 733 } 734 735 { 736 int point_size = CLAMP((int) rasterizer->point_size, 1, 0xff); 737 738 cso->LIS4 |= point_size << S4_POINT_WIDTH_SHIFT; 739 } 740 741 if (rasterizer->flatshade) { 742 cso->LIS4 |= (S4_FLATSHADE_ALPHA | 743 S4_FLATSHADE_COLOR | 744 S4_FLATSHADE_SPECULAR); 745 } 746 747 cso->LIS7 = fui( rasterizer->offset_units ); 748 749 750 return cso; 751} 752 753static void i915_bind_rasterizer_state( struct pipe_context *pipe, 754 void *raster ) 755{ 756 struct i915_context *i915 = i915_context(pipe); 757 758 i915->rasterizer = (struct i915_rasterizer_state *)raster; 759 760 /* pass-through to draw module */ 761 draw_set_rasterizer_state(i915->draw, 762 (i915->rasterizer ? i915->rasterizer->templ : NULL), 763 raster); 764 765 i915->dirty |= I915_NEW_RASTERIZER; 766} 767 768static void i915_delete_rasterizer_state(struct pipe_context *pipe, 769 void *raster) 770{ 771 FREE(raster); 772} 773 774static void i915_set_vertex_buffers(struct pipe_context *pipe, 775 unsigned count, 776 const struct pipe_vertex_buffer *buffers) 777{ 778 struct i915_context *i915 = i915_context(pipe); 779 struct draw_context *draw = i915->draw; 780 int i; 781 782#if 0 783 /* XXX doesn't look like this is needed */ 784 /* unmap old */ 785 for (i = 0; i < i915->num_vertex_buffers; i++) { 786 draw_set_mapped_vertex_buffer(draw, i, NULL); 787 } 788#endif 789 790 /* pass-through to draw module */ 791 draw_set_vertex_buffers(draw, count, buffers); 792 793 /* map new */ 794 for (i = 0; i < count; i++) { 795 void *buf = i915_buffer(buffers[i].buffer)->data; 796 draw_set_mapped_vertex_buffer(draw, i, buf); 797 } 798} 799 800static void * 801i915_create_vertex_elements_state(struct pipe_context *pipe, 802 unsigned count, 803 const struct pipe_vertex_element *attribs) 804{ 805 struct i915_velems_state *velems; 806 assert(count <= PIPE_MAX_ATTRIBS); 807 velems = (struct i915_velems_state *) MALLOC(sizeof(struct i915_velems_state)); 808 if (velems) { 809 velems->count = count; 810 memcpy(velems->velem, attribs, sizeof(*attribs) * count); 811 } 812 return velems; 813} 814 815static void 816i915_bind_vertex_elements_state(struct pipe_context *pipe, 817 void *velems) 818{ 819 struct i915_context *i915 = i915_context(pipe); 820 struct i915_velems_state *i915_velems = (struct i915_velems_state *) velems; 821 822 /* pass-through to draw module */ 823 if (i915_velems) { 824 draw_set_vertex_elements(i915->draw, 825 i915_velems->count, i915_velems->velem); 826 } 827} 828 829static void 830i915_delete_vertex_elements_state(struct pipe_context *pipe, void *velems) 831{ 832 FREE( velems ); 833} 834 835static void i915_set_index_buffer(struct pipe_context *pipe, 836 const struct pipe_index_buffer *ib) 837{ 838 struct i915_context *i915 = i915_context(pipe); 839 840 if (ib) 841 memcpy(&i915->index_buffer, ib, sizeof(i915->index_buffer)); 842 else 843 memset(&i915->index_buffer, 0, sizeof(i915->index_buffer)); 844 845 /* pass-through to draw module */ 846 draw_set_index_buffer(i915->draw, ib); 847} 848 849static void 850i915_set_sample_mask(struct pipe_context *pipe, 851 unsigned sample_mask) 852{ 853} 854 855void 856i915_init_state_functions( struct i915_context *i915 ) 857{ 858 i915->base.create_blend_state = i915_create_blend_state; 859 i915->base.bind_blend_state = i915_bind_blend_state; 860 i915->base.delete_blend_state = i915_delete_blend_state; 861 862 i915->base.create_sampler_state = i915_create_sampler_state; 863 i915->base.bind_fragment_sampler_states = i915_bind_sampler_states; 864 i915->base.delete_sampler_state = i915_delete_sampler_state; 865 866 i915->base.create_depth_stencil_alpha_state = i915_create_depth_stencil_state; 867 i915->base.bind_depth_stencil_alpha_state = i915_bind_depth_stencil_state; 868 i915->base.delete_depth_stencil_alpha_state = i915_delete_depth_stencil_state; 869 870 i915->base.create_rasterizer_state = i915_create_rasterizer_state; 871 i915->base.bind_rasterizer_state = i915_bind_rasterizer_state; 872 i915->base.delete_rasterizer_state = i915_delete_rasterizer_state; 873 i915->base.create_fs_state = i915_create_fs_state; 874 i915->base.bind_fs_state = i915_bind_fs_state; 875 i915->base.delete_fs_state = i915_delete_fs_state; 876 i915->base.create_vs_state = i915_create_vs_state; 877 i915->base.bind_vs_state = i915_bind_vs_state; 878 i915->base.delete_vs_state = i915_delete_vs_state; 879 i915->base.create_vertex_elements_state = i915_create_vertex_elements_state; 880 i915->base.bind_vertex_elements_state = i915_bind_vertex_elements_state; 881 i915->base.delete_vertex_elements_state = i915_delete_vertex_elements_state; 882 883 i915->base.set_blend_color = i915_set_blend_color; 884 i915->base.set_stencil_ref = i915_set_stencil_ref; 885 i915->base.set_clip_state = i915_set_clip_state; 886 i915->base.set_sample_mask = i915_set_sample_mask; 887 i915->base.set_constant_buffer = i915_set_constant_buffer; 888 i915->base.set_framebuffer_state = i915_set_framebuffer_state; 889 890 i915->base.set_polygon_stipple = i915_set_polygon_stipple; 891 i915->base.set_scissor_state = i915_set_scissor_state; 892 i915->base.set_fragment_sampler_views = i915_set_fragment_sampler_views; 893 i915->base.create_sampler_view = i915_create_sampler_view; 894 i915->base.sampler_view_destroy = i915_sampler_view_destroy; 895 i915->base.set_viewport_state = i915_set_viewport_state; 896 i915->base.set_vertex_buffers = i915_set_vertex_buffers; 897 i915->base.set_index_buffer = i915_set_index_buffer; 898} 899