i915_state.c revision bc160fc9b293f155d5ed48912dc09c111b97ec74
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 "pipe/internal/p_winsys_screen.h" 34#include "pipe/p_inlines.h" 35#include "util/u_math.h" 36#include "util/u_memory.h" 37#include "tgsi/tgsi_parse.h" 38 39#include "i915_context.h" 40#include "i915_reg.h" 41#include "i915_state.h" 42#include "i915_state_inlines.h" 43#include "i915_fpc.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 /* 62 case PIPE_TEX_WRAP_MIRRORED_REPEAT: 63 return TEXCOORDMODE_MIRROR; 64 */ 65 default: 66 return TEXCOORDMODE_WRAP; 67 } 68} 69 70static unsigned translate_img_filter( unsigned filter ) 71{ 72 switch (filter) { 73 case PIPE_TEX_FILTER_NEAREST: 74 return FILTER_NEAREST; 75 case PIPE_TEX_FILTER_LINEAR: 76 return FILTER_LINEAR; 77 default: 78 assert(0); 79 return FILTER_NEAREST; 80 } 81} 82 83static unsigned translate_mip_filter( unsigned filter ) 84{ 85 switch (filter) { 86 case PIPE_TEX_MIPFILTER_NONE: 87 return MIPFILTER_NONE; 88 case PIPE_TEX_MIPFILTER_NEAREST: 89 return MIPFILTER_NEAREST; 90 case PIPE_TEX_MIPFILTER_LINEAR: 91 return MIPFILTER_LINEAR; 92 default: 93 assert(0); 94 return MIPFILTER_NONE; 95 } 96} 97 98 99/* None of this state is actually used for anything yet. 100 */ 101static void * 102i915_create_blend_state(struct pipe_context *pipe, 103 const struct pipe_blend_state *blend) 104{ 105 struct i915_blend_state *cso_data = CALLOC_STRUCT( i915_blend_state ); 106 107 { 108 unsigned eqRGB = blend->rt[0].rgb_func; 109 unsigned srcRGB = blend->rt[0].rgb_src_factor; 110 unsigned dstRGB = blend->rt[0].rgb_dst_factor; 111 112 unsigned eqA = blend->rt[0].alpha_func; 113 unsigned srcA = blend->rt[0].alpha_src_factor; 114 unsigned dstA = blend->rt[0].alpha_dst_factor; 115 116 /* Special handling for MIN/MAX filter modes handled at 117 * state_tracker level. 118 */ 119 120 if (srcA != srcRGB || 121 dstA != dstRGB || 122 eqA != eqRGB) { 123 124 cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | 125 IAB_MODIFY_ENABLE | 126 IAB_ENABLE | 127 IAB_MODIFY_FUNC | 128 IAB_MODIFY_SRC_FACTOR | 129 IAB_MODIFY_DST_FACTOR | 130 SRC_ABLND_FACT(i915_translate_blend_factor(srcA)) | 131 DST_ABLND_FACT(i915_translate_blend_factor(dstA)) | 132 (i915_translate_blend_func(eqA) << IAB_FUNC_SHIFT)); 133 } 134 else { 135 cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | 136 IAB_MODIFY_ENABLE | 137 0); 138 } 139 } 140 141 cso_data->modes4 |= (_3DSTATE_MODES_4_CMD | 142 ENABLE_LOGIC_OP_FUNC | 143 LOGIC_OP_FUNC(i915_translate_logic_op(blend->logicop_func))); 144 145 if (blend->logicop_enable) 146 cso_data->LIS5 |= S5_LOGICOP_ENABLE; 147 148 if (blend->dither) 149 cso_data->LIS5 |= S5_COLOR_DITHER_ENABLE; 150 151 if ((blend->rt[0].colormask & PIPE_MASK_R) == 0) 152 cso_data->LIS5 |= S5_WRITEDISABLE_RED; 153 154 if ((blend->rt[0].colormask & PIPE_MASK_G) == 0) 155 cso_data->LIS5 |= S5_WRITEDISABLE_GREEN; 156 157 if ((blend->rt[0].colormask & PIPE_MASK_B) == 0) 158 cso_data->LIS5 |= S5_WRITEDISABLE_BLUE; 159 160 if ((blend->rt[0].colormask & PIPE_MASK_A) == 0) 161 cso_data->LIS5 |= S5_WRITEDISABLE_ALPHA; 162 163 if (blend->rt[0].blend_enable) { 164 unsigned funcRGB = blend->rt[0].rgb_func; 165 unsigned srcRGB = blend->rt[0].rgb_src_factor; 166 unsigned dstRGB = blend->rt[0].rgb_dst_factor; 167 168 cso_data->LIS6 |= (S6_CBUF_BLEND_ENABLE | 169 SRC_BLND_FACT(i915_translate_blend_factor(srcRGB)) | 170 DST_BLND_FACT(i915_translate_blend_factor(dstRGB)) | 171 (i915_translate_blend_func(funcRGB) << S6_CBUF_BLEND_FUNC_SHIFT)); 172 } 173 174 return cso_data; 175} 176 177static void i915_bind_blend_state(struct pipe_context *pipe, 178 void *blend) 179{ 180 struct i915_context *i915 = i915_context(pipe); 181 draw_flush(i915->draw); 182 183 i915->blend = (struct i915_blend_state*)blend; 184 185 i915->dirty |= I915_NEW_BLEND; 186} 187 188 189static void i915_delete_blend_state(struct pipe_context *pipe, void *blend) 190{ 191 FREE(blend); 192} 193 194static void i915_set_blend_color( struct pipe_context *pipe, 195 const struct pipe_blend_color *blend_color ) 196{ 197 struct i915_context *i915 = i915_context(pipe); 198 draw_flush(i915->draw); 199 200 i915->blend_color = *blend_color; 201 202 i915->dirty |= I915_NEW_BLEND; 203} 204 205static void * 206i915_create_sampler_state(struct pipe_context *pipe, 207 const struct pipe_sampler_state *sampler) 208{ 209 struct i915_sampler_state *cso = CALLOC_STRUCT( i915_sampler_state ); 210 const unsigned ws = sampler->wrap_s; 211 const unsigned wt = sampler->wrap_t; 212 const unsigned wr = sampler->wrap_r; 213 unsigned minFilt, magFilt; 214 unsigned mipFilt; 215 216 cso->templ = sampler; 217 218 mipFilt = translate_mip_filter(sampler->min_mip_filter); 219 minFilt = translate_img_filter( sampler->min_img_filter ); 220 magFilt = translate_img_filter( sampler->mag_img_filter ); 221 222 if (sampler->max_anisotropy > 1.0) 223 minFilt = magFilt = FILTER_ANISOTROPIC; 224 225 if (sampler->max_anisotropy > 2.0) { 226 cso->state[0] |= SS2_MAX_ANISO_4; 227 } 228 229 { 230 int b = (int) (sampler->lod_bias * 16.0); 231 b = CLAMP(b, -256, 255); 232 cso->state[0] |= ((b << SS2_LOD_BIAS_SHIFT) & SS2_LOD_BIAS_MASK); 233 } 234 235 /* Shadow: 236 */ 237 if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) 238 { 239 cso->state[0] |= (SS2_SHADOW_ENABLE | 240 i915_translate_compare_func(sampler->compare_func)); 241 242 minFilt = FILTER_4X4_FLAT; 243 magFilt = FILTER_4X4_FLAT; 244 } 245 246 cso->state[0] |= ((minFilt << SS2_MIN_FILTER_SHIFT) | 247 (mipFilt << SS2_MIP_FILTER_SHIFT) | 248 (magFilt << SS2_MAG_FILTER_SHIFT)); 249 250 cso->state[1] |= 251 ((translate_wrap_mode(ws) << SS3_TCX_ADDR_MODE_SHIFT) | 252 (translate_wrap_mode(wt) << SS3_TCY_ADDR_MODE_SHIFT) | 253 (translate_wrap_mode(wr) << SS3_TCZ_ADDR_MODE_SHIFT)); 254 255 if (sampler->normalized_coords) 256 cso->state[1] |= SS3_NORMALIZED_COORDS; 257 258 { 259 int minlod = (int) (16.0 * sampler->min_lod); 260 int maxlod = (int) (16.0 * sampler->max_lod); 261 minlod = CLAMP(minlod, 0, 16 * 11); 262 maxlod = CLAMP(maxlod, 0, 16 * 11); 263 264 if (minlod > maxlod) 265 maxlod = minlod; 266 267 cso->minlod = minlod; 268 cso->maxlod = maxlod; 269 } 270 271 { 272 ubyte r = float_to_ubyte(sampler->border_color[0]); 273 ubyte g = float_to_ubyte(sampler->border_color[1]); 274 ubyte b = float_to_ubyte(sampler->border_color[2]); 275 ubyte a = float_to_ubyte(sampler->border_color[3]); 276 cso->state[2] = I915PACKCOLOR8888(r, g, b, a); 277 } 278 return cso; 279} 280 281static void i915_bind_sampler_states(struct pipe_context *pipe, 282 unsigned num, void **sampler) 283{ 284 struct i915_context *i915 = i915_context(pipe); 285 unsigned i; 286 287 assert(num <= PIPE_MAX_SAMPLERS); 288 289 /* Check for no-op */ 290 if (num == i915->num_samplers && 291 !memcmp(i915->sampler, sampler, num * sizeof(void *))) 292 return; 293 294 draw_flush(i915->draw); 295 296 for (i = 0; i < num; ++i) 297 i915->sampler[i] = sampler[i]; 298 for (i = num; i < PIPE_MAX_SAMPLERS; ++i) 299 i915->sampler[i] = NULL; 300 301 i915->num_samplers = num; 302 303 i915->dirty |= I915_NEW_SAMPLER; 304} 305 306static void i915_delete_sampler_state(struct pipe_context *pipe, 307 void *sampler) 308{ 309 FREE(sampler); 310} 311 312 313/** XXX move someday? Or consolidate all these simple state setters 314 * into one file. 315 */ 316 317static void * 318i915_create_depth_stencil_state(struct pipe_context *pipe, 319 const struct pipe_depth_stencil_alpha_state *depth_stencil) 320{ 321 struct i915_depth_stencil_state *cso = CALLOC_STRUCT( i915_depth_stencil_state ); 322 323 { 324 int testmask = depth_stencil->stencil[0].valuemask & 0xff; 325 int writemask = depth_stencil->stencil[0].writemask & 0xff; 326 327 cso->stencil_modes4 |= (_3DSTATE_MODES_4_CMD | 328 ENABLE_STENCIL_TEST_MASK | 329 STENCIL_TEST_MASK(testmask) | 330 ENABLE_STENCIL_WRITE_MASK | 331 STENCIL_WRITE_MASK(writemask)); 332 } 333 334 if (depth_stencil->stencil[0].enabled) { 335 int test = i915_translate_compare_func(depth_stencil->stencil[0].func); 336 int fop = i915_translate_stencil_op(depth_stencil->stencil[0].fail_op); 337 int dfop = i915_translate_stencil_op(depth_stencil->stencil[0].zfail_op); 338 int dpop = i915_translate_stencil_op(depth_stencil->stencil[0].zpass_op); 339 int ref = depth_stencil->stencil[0].ref_value & 0xff; 340 341 cso->stencil_LIS5 |= (S5_STENCIL_TEST_ENABLE | 342 S5_STENCIL_WRITE_ENABLE | 343 (ref << S5_STENCIL_REF_SHIFT) | 344 (test << S5_STENCIL_TEST_FUNC_SHIFT) | 345 (fop << S5_STENCIL_FAIL_SHIFT) | 346 (dfop << S5_STENCIL_PASS_Z_FAIL_SHIFT) | 347 (dpop << S5_STENCIL_PASS_Z_PASS_SHIFT)); 348 } 349 350 if (depth_stencil->stencil[1].enabled) { 351 int test = i915_translate_compare_func(depth_stencil->stencil[1].func); 352 int fop = i915_translate_stencil_op(depth_stencil->stencil[1].fail_op); 353 int dfop = i915_translate_stencil_op(depth_stencil->stencil[1].zfail_op); 354 int dpop = i915_translate_stencil_op(depth_stencil->stencil[1].zpass_op); 355 int ref = depth_stencil->stencil[1].ref_value & 0xff; 356 int tmask = depth_stencil->stencil[1].valuemask & 0xff; 357 int wmask = depth_stencil->stencil[1].writemask & 0xff; 358 359 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 360 BFO_ENABLE_STENCIL_FUNCS | 361 BFO_ENABLE_STENCIL_TWO_SIDE | 362 BFO_ENABLE_STENCIL_REF | 363 BFO_STENCIL_TWO_SIDE | 364 (ref << BFO_STENCIL_REF_SHIFT) | 365 (test << BFO_STENCIL_TEST_SHIFT) | 366 (fop << BFO_STENCIL_FAIL_SHIFT) | 367 (dfop << BFO_STENCIL_PASS_Z_FAIL_SHIFT) | 368 (dpop << BFO_STENCIL_PASS_Z_PASS_SHIFT)); 369 370 cso->bfo[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS | 371 BFM_ENABLE_STENCIL_TEST_MASK | 372 BFM_ENABLE_STENCIL_WRITE_MASK | 373 (tmask << BFM_STENCIL_TEST_MASK_SHIFT) | 374 (wmask << BFM_STENCIL_WRITE_MASK_SHIFT)); 375 } 376 else { 377 /* This actually disables two-side stencil: The bit set is a 378 * modify-enable bit to indicate we are changing the two-side 379 * setting. Then there is a symbolic zero to show that we are 380 * setting the flag to zero/off. 381 */ 382 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 383 BFO_ENABLE_STENCIL_TWO_SIDE | 384 0); 385 cso->bfo[1] = 0; 386 } 387 388 if (depth_stencil->depth.enabled) { 389 int func = i915_translate_compare_func(depth_stencil->depth.func); 390 391 cso->depth_LIS6 |= (S6_DEPTH_TEST_ENABLE | 392 (func << S6_DEPTH_TEST_FUNC_SHIFT)); 393 394 if (depth_stencil->depth.writemask) 395 cso->depth_LIS6 |= S6_DEPTH_WRITE_ENABLE; 396 } 397 398 if (depth_stencil->alpha.enabled) { 399 int test = i915_translate_compare_func(depth_stencil->alpha.func); 400 ubyte refByte = float_to_ubyte(depth_stencil->alpha.ref_value); 401 402 cso->depth_LIS6 |= (S6_ALPHA_TEST_ENABLE | 403 (test << S6_ALPHA_TEST_FUNC_SHIFT) | 404 (((unsigned) refByte) << S6_ALPHA_REF_SHIFT)); 405 } 406 407 return cso; 408} 409 410static void i915_bind_depth_stencil_state(struct pipe_context *pipe, 411 void *depth_stencil) 412{ 413 struct i915_context *i915 = i915_context(pipe); 414 draw_flush(i915->draw); 415 416 i915->depth_stencil = (const struct i915_depth_stencil_state *)depth_stencil; 417 418 i915->dirty |= I915_NEW_DEPTH_STENCIL; 419} 420 421static void i915_delete_depth_stencil_state(struct pipe_context *pipe, 422 void *depth_stencil) 423{ 424 FREE(depth_stencil); 425} 426 427 428static void i915_set_scissor_state( struct pipe_context *pipe, 429 const struct pipe_scissor_state *scissor ) 430{ 431 struct i915_context *i915 = i915_context(pipe); 432 draw_flush(i915->draw); 433 434 memcpy( &i915->scissor, scissor, sizeof(*scissor) ); 435 i915->dirty |= I915_NEW_SCISSOR; 436} 437 438 439static void i915_set_polygon_stipple( struct pipe_context *pipe, 440 const struct pipe_poly_stipple *stipple ) 441{ 442} 443 444 445 446static void * 447i915_create_fs_state(struct pipe_context *pipe, 448 const struct pipe_shader_state *templ) 449{ 450 struct i915_context *i915 = i915_context(pipe); 451 struct i915_fragment_shader *ifs = CALLOC_STRUCT(i915_fragment_shader); 452 if (!ifs) 453 return NULL; 454 455 ifs->state.tokens = tgsi_dup_tokens(templ->tokens); 456 457 tgsi_scan_shader(templ->tokens, &ifs->info); 458 459 /* The shader's compiled to i915 instructions here */ 460 i915_translate_fragment_program(i915, ifs); 461 462 return ifs; 463} 464 465static void 466i915_bind_fs_state(struct pipe_context *pipe, void *shader) 467{ 468 struct i915_context *i915 = i915_context(pipe); 469 draw_flush(i915->draw); 470 471 i915->fs = (struct i915_fragment_shader*) shader; 472 473 i915->dirty |= I915_NEW_FS; 474} 475 476static 477void i915_delete_fs_state(struct pipe_context *pipe, void *shader) 478{ 479 struct i915_fragment_shader *ifs = (struct i915_fragment_shader *) shader; 480 481 if (ifs->program) 482 FREE(ifs->program); 483 ifs->program_len = 0; 484 485 FREE((struct tgsi_token *)ifs->state.tokens); 486 487 FREE(ifs); 488} 489 490 491static void * 492i915_create_vs_state(struct pipe_context *pipe, 493 const struct pipe_shader_state *templ) 494{ 495 struct i915_context *i915 = i915_context(pipe); 496 497 /* just pass-through to draw module */ 498 return draw_create_vertex_shader(i915->draw, templ); 499} 500 501static void i915_bind_vs_state(struct pipe_context *pipe, void *shader) 502{ 503 struct i915_context *i915 = i915_context(pipe); 504 505 /* just pass-through to draw module */ 506 draw_bind_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 507 508 i915->dirty |= I915_NEW_VS; 509} 510 511static void i915_delete_vs_state(struct pipe_context *pipe, void *shader) 512{ 513 struct i915_context *i915 = i915_context(pipe); 514 515 /* just pass-through to draw module */ 516 draw_delete_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 517} 518 519static void i915_set_constant_buffer(struct pipe_context *pipe, 520 uint shader, uint index, 521 struct pipe_buffer *buf) 522{ 523 struct i915_context *i915 = i915_context(pipe); 524 struct pipe_screen *screen = pipe->screen; 525 draw_flush(i915->draw); 526 527 assert(shader < PIPE_SHADER_TYPES); 528 assert(index == 0); 529 530 /* Make a copy of shader constants. 531 * During fragment program translation we may add additional 532 * constants to the array. 533 * 534 * We want to consider the situation where some user constants 535 * (ex: a material color) may change frequently but the shader program 536 * stays the same. In that case we should only be updating the first 537 * N constants, leaving any extras from shader translation alone. 538 */ 539 if (buf) { 540 void *mapped; 541 if (buf->size && 542 (mapped = pipe_buffer_map(screen, buf, 543 PIPE_BUFFER_USAGE_CPU_READ))) { 544 memcpy(i915->current.constants[shader], mapped, buf->size); 545 pipe_buffer_unmap(screen, buf); 546 i915->current.num_user_constants[shader] 547 = buf->size / (4 * sizeof(float)); 548 } 549 else { 550 i915->current.num_user_constants[shader] = 0; 551 } 552 } 553 554 i915->dirty |= I915_NEW_CONSTANTS; 555} 556 557 558static void i915_set_sampler_textures(struct pipe_context *pipe, 559 unsigned num, 560 struct pipe_texture **texture) 561{ 562 struct i915_context *i915 = i915_context(pipe); 563 uint i; 564 565 assert(num <= PIPE_MAX_SAMPLERS); 566 567 /* Check for no-op */ 568 if (num == i915->num_textures && 569 !memcmp(i915->texture, texture, num * sizeof(struct pipe_texture *))) 570 return; 571 572 /* Fixes wrong texture in texobj with VBUF */ 573 draw_flush(i915->draw); 574 575 for (i = 0; i < num; i++) 576 pipe_texture_reference((struct pipe_texture **) &i915->texture[i], 577 texture[i]); 578 579 for (i = num; i < i915->num_textures; i++) 580 pipe_texture_reference((struct pipe_texture **) &i915->texture[i], 581 NULL); 582 583 i915->num_textures = num; 584 585 i915->dirty |= I915_NEW_TEXTURE; 586} 587 588 589 590static void i915_set_framebuffer_state(struct pipe_context *pipe, 591 const struct pipe_framebuffer_state *fb) 592{ 593 struct i915_context *i915 = i915_context(pipe); 594 int i; 595 596 draw_flush(i915->draw); 597 598 i915->framebuffer.width = fb->width; 599 i915->framebuffer.height = fb->height; 600 i915->framebuffer.nr_cbufs = fb->nr_cbufs; 601 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { 602 pipe_surface_reference(&i915->framebuffer.cbufs[i], fb->cbufs[i]); 603 } 604 pipe_surface_reference(&i915->framebuffer.zsbuf, fb->zsbuf); 605 606 i915->dirty |= I915_NEW_FRAMEBUFFER; 607} 608 609 610 611static void i915_set_clip_state( struct pipe_context *pipe, 612 const struct pipe_clip_state *clip ) 613{ 614 struct i915_context *i915 = i915_context(pipe); 615 draw_flush(i915->draw); 616 617 draw_set_clip_state(i915->draw, clip); 618 619 i915->dirty |= I915_NEW_CLIP; 620} 621 622 623 624/* Called when driver state tracker notices changes to the viewport 625 * matrix: 626 */ 627static void i915_set_viewport_state( struct pipe_context *pipe, 628 const struct pipe_viewport_state *viewport ) 629{ 630 struct i915_context *i915 = i915_context(pipe); 631 632 i915->viewport = *viewport; /* struct copy */ 633 634 /* pass the viewport info to the draw module */ 635 draw_set_viewport_state(i915->draw, &i915->viewport); 636 637 i915->dirty |= I915_NEW_VIEWPORT; 638} 639 640 641static void * 642i915_create_rasterizer_state(struct pipe_context *pipe, 643 const struct pipe_rasterizer_state *rasterizer) 644{ 645 struct i915_rasterizer_state *cso = CALLOC_STRUCT( i915_rasterizer_state ); 646 647 cso->templ = rasterizer; 648 cso->color_interp = rasterizer->flatshade ? INTERP_CONSTANT : INTERP_LINEAR; 649 cso->light_twoside = rasterizer->light_twoside; 650 cso->ds[0].u = _3DSTATE_DEPTH_OFFSET_SCALE; 651 cso->ds[1].f = rasterizer->offset_scale; 652 if (rasterizer->poly_stipple_enable) { 653 cso->st |= ST1_ENABLE; 654 } 655 656 if (rasterizer->scissor) 657 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT; 658 else 659 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT; 660 661 switch (rasterizer->cull_mode) { 662 case PIPE_WINDING_NONE: 663 cso->LIS4 |= S4_CULLMODE_NONE; 664 break; 665 case PIPE_WINDING_CW: 666 cso->LIS4 |= S4_CULLMODE_CW; 667 break; 668 case PIPE_WINDING_CCW: 669 cso->LIS4 |= S4_CULLMODE_CCW; 670 break; 671 case PIPE_WINDING_BOTH: 672 cso->LIS4 |= S4_CULLMODE_BOTH; 673 break; 674 } 675 676 { 677 int line_width = CLAMP((int)(rasterizer->line_width * 2), 1, 0xf); 678 679 cso->LIS4 |= line_width << S4_LINE_WIDTH_SHIFT; 680 681 if (rasterizer->line_smooth) 682 cso->LIS4 |= S4_LINE_ANTIALIAS_ENABLE; 683 } 684 685 { 686 int point_size = CLAMP((int) rasterizer->point_size, 1, 0xff); 687 688 cso->LIS4 |= point_size << S4_POINT_WIDTH_SHIFT; 689 } 690 691 if (rasterizer->flatshade) { 692 cso->LIS4 |= (S4_FLATSHADE_ALPHA | 693 S4_FLATSHADE_COLOR | 694 S4_FLATSHADE_SPECULAR); 695 } 696 697 cso->LIS7 = fui( rasterizer->offset_units ); 698 699 700 return cso; 701} 702 703static void i915_bind_rasterizer_state( struct pipe_context *pipe, 704 void *raster ) 705{ 706 struct i915_context *i915 = i915_context(pipe); 707 708 i915->rasterizer = (struct i915_rasterizer_state *)raster; 709 710 /* pass-through to draw module */ 711 draw_set_rasterizer_state(i915->draw, 712 (i915->rasterizer ? i915->rasterizer->templ : NULL)); 713 714 i915->dirty |= I915_NEW_RASTERIZER; 715} 716 717static void i915_delete_rasterizer_state(struct pipe_context *pipe, 718 void *raster) 719{ 720 FREE(raster); 721} 722 723static void i915_set_vertex_buffers(struct pipe_context *pipe, 724 unsigned count, 725 const struct pipe_vertex_buffer *buffers) 726{ 727 struct i915_context *i915 = i915_context(pipe); 728 /* Because we change state before the draw_set_vertex_buffers call 729 * we need a flush here, just to be sure. 730 */ 731 draw_flush(i915->draw); 732 733 memcpy(i915->vertex_buffer, buffers, count * sizeof(buffers[0])); 734 i915->num_vertex_buffers = count; 735 736 /* pass-through to draw module */ 737 draw_set_vertex_buffers(i915->draw, count, buffers); 738} 739 740static void i915_set_vertex_elements(struct pipe_context *pipe, 741 unsigned count, 742 const struct pipe_vertex_element *elements) 743{ 744 struct i915_context *i915 = i915_context(pipe); 745 /* Because we change state before the draw_set_vertex_buffers call 746 * we need a flush here, just to be sure. 747 */ 748 draw_flush(i915->draw); 749 750 i915->num_vertex_elements = count; 751 /* pass-through to draw module */ 752 draw_set_vertex_elements(i915->draw, count, elements); 753} 754 755 756void 757i915_init_state_functions( struct i915_context *i915 ) 758{ 759 i915->base.create_blend_state = i915_create_blend_state; 760 i915->base.bind_blend_state = i915_bind_blend_state; 761 i915->base.delete_blend_state = i915_delete_blend_state; 762 763 i915->base.create_sampler_state = i915_create_sampler_state; 764 i915->base.bind_fragment_sampler_states = i915_bind_sampler_states; 765 i915->base.delete_sampler_state = i915_delete_sampler_state; 766 767 i915->base.create_depth_stencil_alpha_state = i915_create_depth_stencil_state; 768 i915->base.bind_depth_stencil_alpha_state = i915_bind_depth_stencil_state; 769 i915->base.delete_depth_stencil_alpha_state = i915_delete_depth_stencil_state; 770 771 i915->base.create_rasterizer_state = i915_create_rasterizer_state; 772 i915->base.bind_rasterizer_state = i915_bind_rasterizer_state; 773 i915->base.delete_rasterizer_state = i915_delete_rasterizer_state; 774 i915->base.create_fs_state = i915_create_fs_state; 775 i915->base.bind_fs_state = i915_bind_fs_state; 776 i915->base.delete_fs_state = i915_delete_fs_state; 777 i915->base.create_vs_state = i915_create_vs_state; 778 i915->base.bind_vs_state = i915_bind_vs_state; 779 i915->base.delete_vs_state = i915_delete_vs_state; 780 781 i915->base.set_blend_color = i915_set_blend_color; 782 i915->base.set_clip_state = i915_set_clip_state; 783 i915->base.set_constant_buffer = i915_set_constant_buffer; 784 i915->base.set_framebuffer_state = i915_set_framebuffer_state; 785 786 i915->base.set_polygon_stipple = i915_set_polygon_stipple; 787 i915->base.set_scissor_state = i915_set_scissor_state; 788 i915->base.set_fragment_sampler_textures = i915_set_sampler_textures; 789 i915->base.set_viewport_state = i915_set_viewport_state; 790 i915->base.set_vertex_buffers = i915_set_vertex_buffers; 791 i915->base.set_vertex_elements = i915_set_vertex_elements; 792} 793