i915_state.c revision 3293bcdc80cdfa20a2381aae2b94505bdf95d857
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 assert(num <= PIPE_MAX_SAMPLERS); 298 299 /* Check for no-op */ 300 if (num == i915->num_samplers && 301 !memcmp(i915->sampler, sampler, num * sizeof(void *))) 302 return; 303 304 draw_flush(i915->draw); 305 306 for (i = 0; i < num; ++i) 307 i915->sampler[i] = sampler[i]; 308 for (i = num; i < PIPE_MAX_SAMPLERS; ++i) 309 i915->sampler[i] = NULL; 310 311 i915->num_samplers = num; 312 313 i915->dirty |= I915_NEW_SAMPLER; 314} 315 316static void i915_delete_sampler_state(struct pipe_context *pipe, 317 void *sampler) 318{ 319 FREE(sampler); 320} 321 322 323/** XXX move someday? Or consolidate all these simple state setters 324 * into one file. 325 */ 326 327static void * 328i915_create_depth_stencil_state(struct pipe_context *pipe, 329 const struct pipe_depth_stencil_alpha_state *depth_stencil) 330{ 331 struct i915_depth_stencil_state *cso = CALLOC_STRUCT( i915_depth_stencil_state ); 332 333 { 334 int testmask = depth_stencil->stencil[0].valuemask & 0xff; 335 int writemask = depth_stencil->stencil[0].writemask & 0xff; 336 337 cso->stencil_modes4 |= (_3DSTATE_MODES_4_CMD | 338 ENABLE_STENCIL_TEST_MASK | 339 STENCIL_TEST_MASK(testmask) | 340 ENABLE_STENCIL_WRITE_MASK | 341 STENCIL_WRITE_MASK(writemask)); 342 } 343 344 if (depth_stencil->stencil[0].enabled) { 345 int test = i915_translate_compare_func(depth_stencil->stencil[0].func); 346 int fop = i915_translate_stencil_op(depth_stencil->stencil[0].fail_op); 347 int dfop = i915_translate_stencil_op(depth_stencil->stencil[0].zfail_op); 348 int dpop = i915_translate_stencil_op(depth_stencil->stencil[0].zpass_op); 349 350 cso->stencil_LIS5 |= (S5_STENCIL_TEST_ENABLE | 351 S5_STENCIL_WRITE_ENABLE | 352 (test << S5_STENCIL_TEST_FUNC_SHIFT) | 353 (fop << S5_STENCIL_FAIL_SHIFT) | 354 (dfop << S5_STENCIL_PASS_Z_FAIL_SHIFT) | 355 (dpop << S5_STENCIL_PASS_Z_PASS_SHIFT)); 356 } 357 358 if (depth_stencil->stencil[1].enabled) { 359 int test = i915_translate_compare_func(depth_stencil->stencil[1].func); 360 int fop = i915_translate_stencil_op(depth_stencil->stencil[1].fail_op); 361 int dfop = i915_translate_stencil_op(depth_stencil->stencil[1].zfail_op); 362 int dpop = i915_translate_stencil_op(depth_stencil->stencil[1].zpass_op); 363 int tmask = depth_stencil->stencil[1].valuemask & 0xff; 364 int wmask = depth_stencil->stencil[1].writemask & 0xff; 365 366 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 367 BFO_ENABLE_STENCIL_FUNCS | 368 BFO_ENABLE_STENCIL_TWO_SIDE | 369 BFO_ENABLE_STENCIL_REF | 370 BFO_STENCIL_TWO_SIDE | 371 (test << BFO_STENCIL_TEST_SHIFT) | 372 (fop << BFO_STENCIL_FAIL_SHIFT) | 373 (dfop << BFO_STENCIL_PASS_Z_FAIL_SHIFT) | 374 (dpop << BFO_STENCIL_PASS_Z_PASS_SHIFT)); 375 376 cso->bfo[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS | 377 BFM_ENABLE_STENCIL_TEST_MASK | 378 BFM_ENABLE_STENCIL_WRITE_MASK | 379 (tmask << BFM_STENCIL_TEST_MASK_SHIFT) | 380 (wmask << BFM_STENCIL_WRITE_MASK_SHIFT)); 381 } 382 else { 383 /* This actually disables two-side stencil: The bit set is a 384 * modify-enable bit to indicate we are changing the two-side 385 * setting. Then there is a symbolic zero to show that we are 386 * setting the flag to zero/off. 387 */ 388 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 389 BFO_ENABLE_STENCIL_TWO_SIDE | 390 0); 391 cso->bfo[1] = 0; 392 } 393 394 if (depth_stencil->depth.enabled) { 395 int func = i915_translate_compare_func(depth_stencil->depth.func); 396 397 cso->depth_LIS6 |= (S6_DEPTH_TEST_ENABLE | 398 (func << S6_DEPTH_TEST_FUNC_SHIFT)); 399 400 if (depth_stencil->depth.writemask) 401 cso->depth_LIS6 |= S6_DEPTH_WRITE_ENABLE; 402 } 403 404 if (depth_stencil->alpha.enabled) { 405 int test = i915_translate_compare_func(depth_stencil->alpha.func); 406 ubyte refByte = float_to_ubyte(depth_stencil->alpha.ref_value); 407 408 cso->depth_LIS6 |= (S6_ALPHA_TEST_ENABLE | 409 (test << S6_ALPHA_TEST_FUNC_SHIFT) | 410 (((unsigned) refByte) << S6_ALPHA_REF_SHIFT)); 411 } 412 413 return cso; 414} 415 416static void i915_bind_depth_stencil_state(struct pipe_context *pipe, 417 void *depth_stencil) 418{ 419 struct i915_context *i915 = i915_context(pipe); 420 draw_flush(i915->draw); 421 422 i915->depth_stencil = (const struct i915_depth_stencil_state *)depth_stencil; 423 424 i915->dirty |= I915_NEW_DEPTH_STENCIL; 425} 426 427static void i915_delete_depth_stencil_state(struct pipe_context *pipe, 428 void *depth_stencil) 429{ 430 FREE(depth_stencil); 431} 432 433 434static void i915_set_scissor_state( struct pipe_context *pipe, 435 const struct pipe_scissor_state *scissor ) 436{ 437 struct i915_context *i915 = i915_context(pipe); 438 draw_flush(i915->draw); 439 440 memcpy( &i915->scissor, scissor, sizeof(*scissor) ); 441 i915->dirty |= I915_NEW_SCISSOR; 442} 443 444 445static void i915_set_polygon_stipple( struct pipe_context *pipe, 446 const struct pipe_poly_stipple *stipple ) 447{ 448} 449 450 451 452static void * 453i915_create_fs_state(struct pipe_context *pipe, 454 const struct pipe_shader_state *templ) 455{ 456 struct i915_context *i915 = i915_context(pipe); 457 struct i915_fragment_shader *ifs = CALLOC_STRUCT(i915_fragment_shader); 458 if (!ifs) 459 return NULL; 460 461 ifs->state.tokens = tgsi_dup_tokens(templ->tokens); 462 463 tgsi_scan_shader(templ->tokens, &ifs->info); 464 465 /* The shader's compiled to i915 instructions here */ 466 i915_translate_fragment_program(i915, ifs); 467 468 return ifs; 469} 470 471static void 472i915_bind_fs_state(struct pipe_context *pipe, void *shader) 473{ 474 struct i915_context *i915 = i915_context(pipe); 475 draw_flush(i915->draw); 476 477 i915->fs = (struct i915_fragment_shader*) shader; 478 479 i915->dirty |= I915_NEW_FS; 480} 481 482static 483void i915_delete_fs_state(struct pipe_context *pipe, void *shader) 484{ 485 struct i915_fragment_shader *ifs = (struct i915_fragment_shader *) shader; 486 487 if (ifs->program) 488 FREE(ifs->program); 489 ifs->program_len = 0; 490 491 FREE((struct tgsi_token *)ifs->state.tokens); 492 493 FREE(ifs); 494} 495 496 497static void * 498i915_create_vs_state(struct pipe_context *pipe, 499 const struct pipe_shader_state *templ) 500{ 501 struct i915_context *i915 = i915_context(pipe); 502 503 /* just pass-through to draw module */ 504 return draw_create_vertex_shader(i915->draw, templ); 505} 506 507static void i915_bind_vs_state(struct pipe_context *pipe, void *shader) 508{ 509 struct i915_context *i915 = i915_context(pipe); 510 511 /* just pass-through to draw module */ 512 draw_bind_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 513 514 i915->dirty |= I915_NEW_VS; 515} 516 517static void i915_delete_vs_state(struct pipe_context *pipe, void *shader) 518{ 519 struct i915_context *i915 = i915_context(pipe); 520 521 /* just pass-through to draw module */ 522 draw_delete_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 523} 524 525static void i915_set_constant_buffer(struct pipe_context *pipe, 526 uint shader, uint index, 527 struct pipe_resource *buf) 528{ 529 struct i915_context *i915 = i915_context(pipe); 530 draw_flush(i915->draw); 531 532 assert(shader < PIPE_SHADER_TYPES); 533 assert(index == 0); 534 535 /* Make a copy of shader constants. 536 * During fragment program translation we may add additional 537 * constants to the array. 538 * 539 * We want to consider the situation where some user constants 540 * (ex: a material color) may change frequently but the shader program 541 * stays the same. In that case we should only be updating the first 542 * N constants, leaving any extras from shader translation alone. 543 */ 544 if (buf) { 545 struct i915_buffer *ir = i915_buffer(buf); 546 memcpy(i915->current.constants[shader], ir->data, ir->b.b.width0); 547 i915->current.num_user_constants[shader] = (ir->b.b.width0 / 548 4 * sizeof(float)); 549 } 550 else { 551 i915->current.num_user_constants[shader] = 0; 552 } 553 554 555 i915->dirty |= I915_NEW_CONSTANTS; 556} 557 558 559static void i915_set_fragment_sampler_views(struct pipe_context *pipe, 560 unsigned num, 561 struct pipe_sampler_view **views) 562{ 563 struct i915_context *i915 = i915_context(pipe); 564 uint i; 565 566 assert(num <= PIPE_MAX_SAMPLERS); 567 568 /* Check for no-op */ 569 if (num == i915->num_fragment_sampler_views && 570 !memcmp(i915->fragment_sampler_views, views, num * sizeof(struct pipe_sampler_view *))) 571 return; 572 573 /* Fixes wrong texture in texobj with VBUF */ 574 draw_flush(i915->draw); 575 576 for (i = 0; i < num; i++) 577 pipe_sampler_view_reference(&i915->fragment_sampler_views[i], 578 views[i]); 579 580 for (i = num; i < i915->num_fragment_sampler_views; i++) 581 pipe_sampler_view_reference(&i915->fragment_sampler_views[i], 582 NULL); 583 584 i915->num_fragment_sampler_views = num; 585 586 i915->dirty |= I915_NEW_SAMPLER_VIEW; 587} 588 589 590static struct pipe_sampler_view * 591i915_create_sampler_view(struct pipe_context *pipe, 592 struct pipe_resource *texture, 593 const struct pipe_sampler_view *templ) 594{ 595 struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view); 596 597 if (view) { 598 *view = *templ; 599 view->reference.count = 1; 600 view->texture = NULL; 601 pipe_resource_reference(&view->texture, texture); 602 view->context = pipe; 603 } 604 605 return view; 606} 607 608 609static void 610i915_sampler_view_destroy(struct pipe_context *pipe, 611 struct pipe_sampler_view *view) 612{ 613 pipe_resource_reference(&view->texture, NULL); 614 FREE(view); 615} 616 617 618static void i915_set_framebuffer_state(struct pipe_context *pipe, 619 const struct pipe_framebuffer_state *fb) 620{ 621 struct i915_context *i915 = i915_context(pipe); 622 int i; 623 624 draw_flush(i915->draw); 625 626 i915->framebuffer.width = fb->width; 627 i915->framebuffer.height = fb->height; 628 i915->framebuffer.nr_cbufs = fb->nr_cbufs; 629 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { 630 pipe_surface_reference(&i915->framebuffer.cbufs[i], fb->cbufs[i]); 631 } 632 pipe_surface_reference(&i915->framebuffer.zsbuf, fb->zsbuf); 633 634 i915->dirty |= I915_NEW_FRAMEBUFFER; 635} 636 637 638 639static void i915_set_clip_state( struct pipe_context *pipe, 640 const struct pipe_clip_state *clip ) 641{ 642 struct i915_context *i915 = i915_context(pipe); 643 draw_flush(i915->draw); 644 645 draw_set_clip_state(i915->draw, clip); 646 647 i915->dirty |= I915_NEW_CLIP; 648} 649 650 651 652/* Called when driver state tracker notices changes to the viewport 653 * matrix: 654 */ 655static void i915_set_viewport_state( struct pipe_context *pipe, 656 const struct pipe_viewport_state *viewport ) 657{ 658 struct i915_context *i915 = i915_context(pipe); 659 660 i915->viewport = *viewport; /* struct copy */ 661 662 /* pass the viewport info to the draw module */ 663 draw_set_viewport_state(i915->draw, &i915->viewport); 664 665 i915->dirty |= I915_NEW_VIEWPORT; 666} 667 668 669static void * 670i915_create_rasterizer_state(struct pipe_context *pipe, 671 const struct pipe_rasterizer_state *rasterizer) 672{ 673 struct i915_rasterizer_state *cso = CALLOC_STRUCT( i915_rasterizer_state ); 674 675 cso->templ = rasterizer; 676 cso->color_interp = rasterizer->flatshade ? INTERP_CONSTANT : INTERP_LINEAR; 677 cso->light_twoside = rasterizer->light_twoside; 678 cso->ds[0].u = _3DSTATE_DEPTH_OFFSET_SCALE; 679 cso->ds[1].f = rasterizer->offset_scale; 680 if (rasterizer->poly_stipple_enable) { 681 cso->st |= ST1_ENABLE; 682 } 683 684 if (rasterizer->scissor) 685 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT; 686 else 687 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT; 688 689 switch (rasterizer->cull_face) { 690 case PIPE_FACE_NONE: 691 cso->LIS4 |= S4_CULLMODE_NONE; 692 break; 693 case PIPE_FACE_FRONT: 694 if (rasterizer->front_ccw) 695 cso->LIS4 |= S4_CULLMODE_CCW; 696 else 697 cso->LIS4 |= S4_CULLMODE_CW; 698 break; 699 case PIPE_FACE_BACK: 700 if (rasterizer->front_ccw) 701 cso->LIS4 |= S4_CULLMODE_CW; 702 else 703 cso->LIS4 |= S4_CULLMODE_CCW; 704 break; 705 case PIPE_FACE_FRONT_AND_BACK: 706 cso->LIS4 |= S4_CULLMODE_BOTH; 707 break; 708 } 709 710 { 711 int line_width = CLAMP((int)(rasterizer->line_width * 2), 1, 0xf); 712 713 cso->LIS4 |= line_width << S4_LINE_WIDTH_SHIFT; 714 715 if (rasterizer->line_smooth) 716 cso->LIS4 |= S4_LINE_ANTIALIAS_ENABLE; 717 } 718 719 { 720 int point_size = CLAMP((int) rasterizer->point_size, 1, 0xff); 721 722 cso->LIS4 |= point_size << S4_POINT_WIDTH_SHIFT; 723 } 724 725 if (rasterizer->flatshade) { 726 cso->LIS4 |= (S4_FLATSHADE_ALPHA | 727 S4_FLATSHADE_COLOR | 728 S4_FLATSHADE_SPECULAR); 729 } 730 731 cso->LIS7 = fui( rasterizer->offset_units ); 732 733 734 return cso; 735} 736 737static void i915_bind_rasterizer_state( struct pipe_context *pipe, 738 void *raster ) 739{ 740 struct i915_context *i915 = i915_context(pipe); 741 742 i915->rasterizer = (struct i915_rasterizer_state *)raster; 743 744 /* pass-through to draw module */ 745 draw_set_rasterizer_state(i915->draw, 746 (i915->rasterizer ? i915->rasterizer->templ : NULL), 747 raster); 748 749 i915->dirty |= I915_NEW_RASTERIZER; 750} 751 752static void i915_delete_rasterizer_state(struct pipe_context *pipe, 753 void *raster) 754{ 755 FREE(raster); 756} 757 758static void i915_set_vertex_buffers(struct pipe_context *pipe, 759 unsigned count, 760 const struct pipe_vertex_buffer *buffers) 761{ 762 struct i915_context *i915 = i915_context(pipe); 763 /* Because we change state before the draw_set_vertex_buffers call 764 * we need a flush here, just to be sure. 765 */ 766 draw_flush(i915->draw); 767 768 memcpy(i915->vertex_buffer, buffers, count * sizeof(buffers[0])); 769 i915->num_vertex_buffers = count; 770 771 /* pass-through to draw module */ 772 draw_set_vertex_buffers(i915->draw, count, buffers); 773} 774 775static void * 776i915_create_vertex_elements_state(struct pipe_context *pipe, 777 unsigned count, 778 const struct pipe_vertex_element *attribs) 779{ 780 struct i915_velems_state *velems; 781 assert(count <= PIPE_MAX_ATTRIBS); 782 velems = (struct i915_velems_state *) MALLOC(sizeof(struct i915_velems_state)); 783 if (velems) { 784 velems->count = count; 785 memcpy(velems->velem, attribs, sizeof(*attribs) * count); 786 } 787 return velems; 788} 789 790static void 791i915_bind_vertex_elements_state(struct pipe_context *pipe, 792 void *velems) 793{ 794 struct i915_context *i915 = i915_context(pipe); 795 struct i915_velems_state *i915_velems = (struct i915_velems_state *) velems; 796 797 /* Because we change state before the draw_set_vertex_buffers call 798 * we need a flush here, just to be sure. 799 */ 800 draw_flush(i915->draw); 801 802 /* pass-through to draw module */ 803 if (i915_velems) { 804 draw_set_vertex_elements(i915->draw, 805 i915_velems->count, i915_velems->velem); 806 } 807} 808 809static void 810i915_delete_vertex_elements_state(struct pipe_context *pipe, void *velems) 811{ 812 FREE( velems ); 813} 814 815static void 816i915_set_sample_mask(struct pipe_context *pipe, 817 unsigned sample_mask) 818{ 819} 820 821void 822i915_init_state_functions( struct i915_context *i915 ) 823{ 824 i915->base.create_blend_state = i915_create_blend_state; 825 i915->base.bind_blend_state = i915_bind_blend_state; 826 i915->base.delete_blend_state = i915_delete_blend_state; 827 828 i915->base.create_sampler_state = i915_create_sampler_state; 829 i915->base.bind_fragment_sampler_states = i915_bind_sampler_states; 830 i915->base.delete_sampler_state = i915_delete_sampler_state; 831 832 i915->base.create_depth_stencil_alpha_state = i915_create_depth_stencil_state; 833 i915->base.bind_depth_stencil_alpha_state = i915_bind_depth_stencil_state; 834 i915->base.delete_depth_stencil_alpha_state = i915_delete_depth_stencil_state; 835 836 i915->base.create_rasterizer_state = i915_create_rasterizer_state; 837 i915->base.bind_rasterizer_state = i915_bind_rasterizer_state; 838 i915->base.delete_rasterizer_state = i915_delete_rasterizer_state; 839 i915->base.create_fs_state = i915_create_fs_state; 840 i915->base.bind_fs_state = i915_bind_fs_state; 841 i915->base.delete_fs_state = i915_delete_fs_state; 842 i915->base.create_vs_state = i915_create_vs_state; 843 i915->base.bind_vs_state = i915_bind_vs_state; 844 i915->base.delete_vs_state = i915_delete_vs_state; 845 i915->base.create_vertex_elements_state = i915_create_vertex_elements_state; 846 i915->base.bind_vertex_elements_state = i915_bind_vertex_elements_state; 847 i915->base.delete_vertex_elements_state = i915_delete_vertex_elements_state; 848 849 i915->base.set_blend_color = i915_set_blend_color; 850 i915->base.set_stencil_ref = i915_set_stencil_ref; 851 i915->base.set_clip_state = i915_set_clip_state; 852 i915->base.set_sample_mask = i915_set_sample_mask; 853 i915->base.set_constant_buffer = i915_set_constant_buffer; 854 i915->base.set_framebuffer_state = i915_set_framebuffer_state; 855 856 i915->base.set_polygon_stipple = i915_set_polygon_stipple; 857 i915->base.set_scissor_state = i915_set_scissor_state; 858 i915->base.set_fragment_sampler_views = i915_set_fragment_sampler_views; 859 i915->base.create_sampler_view = i915_create_sampler_view; 860 i915->base.sampler_view_destroy = i915_sampler_view_destroy; 861 i915->base.set_viewport_state = i915_set_viewport_state; 862 i915->base.set_vertex_buffers = i915_set_vertex_buffers; 863} 864