i915_state.c revision 25bb04a1ee9b3f28bfa6e60d7ce71ff23726c5b6
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 case PIPE_TEX_FILTER_ANISO: 78 return FILTER_ANISOTROPIC; 79 default: 80 assert(0); 81 return FILTER_NEAREST; 82 } 83} 84 85static unsigned translate_mip_filter( unsigned filter ) 86{ 87 switch (filter) { 88 case PIPE_TEX_MIPFILTER_NONE: 89 return MIPFILTER_NONE; 90 case PIPE_TEX_MIPFILTER_NEAREST: 91 return MIPFILTER_NEAREST; 92 case PIPE_TEX_MIPFILTER_LINEAR: 93 return MIPFILTER_LINEAR; 94 default: 95 assert(0); 96 return MIPFILTER_NONE; 97 } 98} 99 100 101/* None of this state is actually used for anything yet. 102 */ 103static void * 104i915_create_blend_state(struct pipe_context *pipe, 105 const struct pipe_blend_state *blend) 106{ 107 struct i915_blend_state *cso_data = CALLOC_STRUCT( i915_blend_state ); 108 109 { 110 unsigned eqRGB = blend->rgb_func; 111 unsigned srcRGB = blend->rgb_src_factor; 112 unsigned dstRGB = blend->rgb_dst_factor; 113 114 unsigned eqA = blend->alpha_func; 115 unsigned srcA = blend->alpha_src_factor; 116 unsigned dstA = blend->alpha_dst_factor; 117 118 /* Special handling for MIN/MAX filter modes handled at 119 * state_tracker level. 120 */ 121 122 if (srcA != srcRGB || 123 dstA != dstRGB || 124 eqA != eqRGB) { 125 126 cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | 127 IAB_MODIFY_ENABLE | 128 IAB_ENABLE | 129 IAB_MODIFY_FUNC | 130 IAB_MODIFY_SRC_FACTOR | 131 IAB_MODIFY_DST_FACTOR | 132 SRC_ABLND_FACT(i915_translate_blend_factor(srcA)) | 133 DST_ABLND_FACT(i915_translate_blend_factor(dstA)) | 134 (i915_translate_blend_func(eqA) << IAB_FUNC_SHIFT)); 135 } 136 else { 137 cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | 138 IAB_MODIFY_ENABLE | 139 0); 140 } 141 } 142 143 cso_data->modes4 |= (_3DSTATE_MODES_4_CMD | 144 ENABLE_LOGIC_OP_FUNC | 145 LOGIC_OP_FUNC(i915_translate_logic_op(blend->logicop_func))); 146 147 if (blend->logicop_enable) 148 cso_data->LIS5 |= S5_LOGICOP_ENABLE; 149 150 if (blend->dither) 151 cso_data->LIS5 |= S5_COLOR_DITHER_ENABLE; 152 153 if ((blend->colormask & PIPE_MASK_R) == 0) 154 cso_data->LIS5 |= S5_WRITEDISABLE_RED; 155 156 if ((blend->colormask & PIPE_MASK_G) == 0) 157 cso_data->LIS5 |= S5_WRITEDISABLE_GREEN; 158 159 if ((blend->colormask & PIPE_MASK_B) == 0) 160 cso_data->LIS5 |= S5_WRITEDISABLE_BLUE; 161 162 if ((blend->colormask & PIPE_MASK_A) == 0) 163 cso_data->LIS5 |= S5_WRITEDISABLE_ALPHA; 164 165 if (blend->blend_enable) { 166 unsigned funcRGB = blend->rgb_func; 167 unsigned srcRGB = blend->rgb_src_factor; 168 unsigned dstRGB = blend->rgb_dst_factor; 169 170 cso_data->LIS6 |= (S6_CBUF_BLEND_ENABLE | 171 SRC_BLND_FACT(i915_translate_blend_factor(srcRGB)) | 172 DST_BLND_FACT(i915_translate_blend_factor(dstRGB)) | 173 (i915_translate_blend_func(funcRGB) << S6_CBUF_BLEND_FUNC_SHIFT)); 174 } 175 176 return cso_data; 177} 178 179static void i915_bind_blend_state(struct pipe_context *pipe, 180 void *blend) 181{ 182 struct i915_context *i915 = i915_context(pipe); 183 draw_flush(i915->draw); 184 185 i915->blend = (struct i915_blend_state*)blend; 186 187 i915->dirty |= I915_NEW_BLEND; 188} 189 190 191static void i915_delete_blend_state(struct pipe_context *pipe, void *blend) 192{ 193 FREE(blend); 194} 195 196static void i915_set_blend_color( struct pipe_context *pipe, 197 const struct pipe_blend_color *blend_color ) 198{ 199 struct i915_context *i915 = i915_context(pipe); 200 draw_flush(i915->draw); 201 202 i915->blend_color = *blend_color; 203 204 i915->dirty |= I915_NEW_BLEND; 205} 206 207static void * 208i915_create_sampler_state(struct pipe_context *pipe, 209 const struct pipe_sampler_state *sampler) 210{ 211 struct i915_sampler_state *cso = CALLOC_STRUCT( i915_sampler_state ); 212 const unsigned ws = sampler->wrap_s; 213 const unsigned wt = sampler->wrap_t; 214 const unsigned wr = sampler->wrap_r; 215 unsigned minFilt, magFilt; 216 unsigned mipFilt; 217 218 cso->templ = sampler; 219 220 mipFilt = translate_mip_filter(sampler->min_mip_filter); 221 minFilt = translate_img_filter( sampler->min_img_filter ); 222 magFilt = translate_img_filter( sampler->mag_img_filter ); 223 224 if (sampler->max_anisotropy > 2.0) { 225 cso->state[0] |= SS2_MAX_ANISO_4; 226 } 227 228 { 229 int b = (int) (sampler->lod_bias * 16.0); 230 b = CLAMP(b, -256, 255); 231 cso->state[0] |= ((b << SS2_LOD_BIAS_SHIFT) & SS2_LOD_BIAS_MASK); 232 } 233 234 /* Shadow: 235 */ 236 if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) 237 { 238 cso->state[0] |= (SS2_SHADOW_ENABLE | 239 i915_translate_compare_func(sampler->compare_func)); 240 241 minFilt = FILTER_4X4_FLAT; 242 magFilt = FILTER_4X4_FLAT; 243 } 244 245 cso->state[0] |= ((minFilt << SS2_MIN_FILTER_SHIFT) | 246 (mipFilt << SS2_MIP_FILTER_SHIFT) | 247 (magFilt << SS2_MAG_FILTER_SHIFT)); 248 249 cso->state[1] |= 250 ((translate_wrap_mode(ws) << SS3_TCX_ADDR_MODE_SHIFT) | 251 (translate_wrap_mode(wt) << SS3_TCY_ADDR_MODE_SHIFT) | 252 (translate_wrap_mode(wr) << SS3_TCZ_ADDR_MODE_SHIFT)); 253 254 if (sampler->normalized_coords) 255 cso->state[1] |= SS3_NORMALIZED_COORDS; 256 257 { 258 int minlod = (int) (16.0 * sampler->min_lod); 259 int maxlod = (int) (16.0 * sampler->max_lod); 260 minlod = CLAMP(minlod, 0, 16 * 11); 261 maxlod = CLAMP(maxlod, 0, 16 * 11); 262 263 if (minlod > maxlod) 264 maxlod = minlod; 265 266 cso->minlod = minlod; 267 cso->maxlod = maxlod; 268 } 269 270 { 271 ubyte r = float_to_ubyte(sampler->border_color[0]); 272 ubyte g = float_to_ubyte(sampler->border_color[1]); 273 ubyte b = float_to_ubyte(sampler->border_color[2]); 274 ubyte a = float_to_ubyte(sampler->border_color[3]); 275 cso->state[2] = I915PACKCOLOR8888(r, g, b, a); 276 } 277 return cso; 278} 279 280static void i915_bind_sampler_states(struct pipe_context *pipe, 281 unsigned num, void **sampler) 282{ 283 struct i915_context *i915 = i915_context(pipe); 284 unsigned i; 285 286 assert(num <= PIPE_MAX_SAMPLERS); 287 288 /* Check for no-op */ 289 if (num == i915->num_samplers && 290 !memcmp(i915->sampler, sampler, num * sizeof(void *))) 291 return; 292 293 draw_flush(i915->draw); 294 295 for (i = 0; i < num; ++i) 296 i915->sampler[i] = sampler[i]; 297 for (i = num; i < PIPE_MAX_SAMPLERS; ++i) 298 i915->sampler[i] = NULL; 299 300 i915->num_samplers = num; 301 302 i915->dirty |= I915_NEW_SAMPLER; 303} 304 305static void i915_delete_sampler_state(struct pipe_context *pipe, 306 void *sampler) 307{ 308 FREE(sampler); 309} 310 311 312/** XXX move someday? Or consolidate all these simple state setters 313 * into one file. 314 */ 315 316static void * 317i915_create_depth_stencil_state(struct pipe_context *pipe, 318 const struct pipe_depth_stencil_alpha_state *depth_stencil) 319{ 320 struct i915_depth_stencil_state *cso = CALLOC_STRUCT( i915_depth_stencil_state ); 321 322 { 323 int testmask = depth_stencil->stencil[0].valuemask & 0xff; 324 int writemask = depth_stencil->stencil[0].writemask & 0xff; 325 326 cso->stencil_modes4 |= (_3DSTATE_MODES_4_CMD | 327 ENABLE_STENCIL_TEST_MASK | 328 STENCIL_TEST_MASK(testmask) | 329 ENABLE_STENCIL_WRITE_MASK | 330 STENCIL_WRITE_MASK(writemask)); 331 } 332 333 if (depth_stencil->stencil[0].enabled) { 334 int test = i915_translate_compare_func(depth_stencil->stencil[0].func); 335 int fop = i915_translate_stencil_op(depth_stencil->stencil[0].fail_op); 336 int dfop = i915_translate_stencil_op(depth_stencil->stencil[0].zfail_op); 337 int dpop = i915_translate_stencil_op(depth_stencil->stencil[0].zpass_op); 338 int ref = depth_stencil->stencil[0].ref_value & 0xff; 339 340 cso->stencil_LIS5 |= (S5_STENCIL_TEST_ENABLE | 341 S5_STENCIL_WRITE_ENABLE | 342 (ref << S5_STENCIL_REF_SHIFT) | 343 (test << S5_STENCIL_TEST_FUNC_SHIFT) | 344 (fop << S5_STENCIL_FAIL_SHIFT) | 345 (dfop << S5_STENCIL_PASS_Z_FAIL_SHIFT) | 346 (dpop << S5_STENCIL_PASS_Z_PASS_SHIFT)); 347 } 348 349 if (depth_stencil->stencil[1].enabled) { 350 int test = i915_translate_compare_func(depth_stencil->stencil[1].func); 351 int fop = i915_translate_stencil_op(depth_stencil->stencil[1].fail_op); 352 int dfop = i915_translate_stencil_op(depth_stencil->stencil[1].zfail_op); 353 int dpop = i915_translate_stencil_op(depth_stencil->stencil[1].zpass_op); 354 int ref = depth_stencil->stencil[1].ref_value & 0xff; 355 int tmask = depth_stencil->stencil[1].valuemask & 0xff; 356 int wmask = depth_stencil->stencil[1].writemask & 0xff; 357 358 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 359 BFO_ENABLE_STENCIL_FUNCS | 360 BFO_ENABLE_STENCIL_TWO_SIDE | 361 BFO_ENABLE_STENCIL_REF | 362 BFO_STENCIL_TWO_SIDE | 363 (ref << BFO_STENCIL_REF_SHIFT) | 364 (test << BFO_STENCIL_TEST_SHIFT) | 365 (fop << BFO_STENCIL_FAIL_SHIFT) | 366 (dfop << BFO_STENCIL_PASS_Z_FAIL_SHIFT) | 367 (dpop << BFO_STENCIL_PASS_Z_PASS_SHIFT)); 368 369 cso->bfo[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS | 370 BFM_ENABLE_STENCIL_TEST_MASK | 371 BFM_ENABLE_STENCIL_WRITE_MASK | 372 (tmask << BFM_STENCIL_TEST_MASK_SHIFT) | 373 (wmask << BFM_STENCIL_WRITE_MASK_SHIFT)); 374 } 375 else { 376 /* This actually disables two-side stencil: The bit set is a 377 * modify-enable bit to indicate we are changing the two-side 378 * setting. Then there is a symbolic zero to show that we are 379 * setting the flag to zero/off. 380 */ 381 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 382 BFO_ENABLE_STENCIL_TWO_SIDE | 383 0); 384 cso->bfo[1] = 0; 385 } 386 387 if (depth_stencil->depth.enabled) { 388 int func = i915_translate_compare_func(depth_stencil->depth.func); 389 390 cso->depth_LIS6 |= (S6_DEPTH_TEST_ENABLE | 391 (func << S6_DEPTH_TEST_FUNC_SHIFT)); 392 393 if (depth_stencil->depth.writemask) 394 cso->depth_LIS6 |= S6_DEPTH_WRITE_ENABLE; 395 } 396 397 if (depth_stencil->alpha.enabled) { 398 int test = i915_translate_compare_func(depth_stencil->alpha.func); 399 ubyte refByte = float_to_ubyte(depth_stencil->alpha.ref_value); 400 401 cso->depth_LIS6 |= (S6_ALPHA_TEST_ENABLE | 402 (test << S6_ALPHA_TEST_FUNC_SHIFT) | 403 (((unsigned) refByte) << S6_ALPHA_REF_SHIFT)); 404 } 405 406 return cso; 407} 408 409static void i915_bind_depth_stencil_state(struct pipe_context *pipe, 410 void *depth_stencil) 411{ 412 struct i915_context *i915 = i915_context(pipe); 413 draw_flush(i915->draw); 414 415 i915->depth_stencil = (const struct i915_depth_stencil_state *)depth_stencil; 416 417 i915->dirty |= I915_NEW_DEPTH_STENCIL; 418} 419 420static void i915_delete_depth_stencil_state(struct pipe_context *pipe, 421 void *depth_stencil) 422{ 423 FREE(depth_stencil); 424} 425 426 427static void i915_set_scissor_state( struct pipe_context *pipe, 428 const struct pipe_scissor_state *scissor ) 429{ 430 struct i915_context *i915 = i915_context(pipe); 431 draw_flush(i915->draw); 432 433 memcpy( &i915->scissor, scissor, sizeof(*scissor) ); 434 i915->dirty |= I915_NEW_SCISSOR; 435} 436 437 438static void i915_set_polygon_stipple( struct pipe_context *pipe, 439 const struct pipe_poly_stipple *stipple ) 440{ 441} 442 443 444 445static void * 446i915_create_fs_state(struct pipe_context *pipe, 447 const struct pipe_shader_state *templ) 448{ 449 struct i915_context *i915 = i915_context(pipe); 450 struct i915_fragment_shader *ifs = CALLOC_STRUCT(i915_fragment_shader); 451 if (!ifs) 452 return NULL; 453 454 ifs->state.tokens = tgsi_dup_tokens(templ->tokens); 455 456 tgsi_scan_shader(templ->tokens, &ifs->info); 457 458 /* The shader's compiled to i915 instructions here */ 459 i915_translate_fragment_program(i915, ifs); 460 461 return ifs; 462} 463 464static void 465i915_bind_fs_state(struct pipe_context *pipe, void *shader) 466{ 467 struct i915_context *i915 = i915_context(pipe); 468 draw_flush(i915->draw); 469 470 i915->fs = (struct i915_fragment_shader*) shader; 471 472 i915->dirty |= I915_NEW_FS; 473} 474 475static 476void i915_delete_fs_state(struct pipe_context *pipe, void *shader) 477{ 478 struct i915_fragment_shader *ifs = (struct i915_fragment_shader *) shader; 479 480 if (ifs->program) 481 FREE(ifs->program); 482 ifs->program_len = 0; 483 484 FREE((struct tgsi_token *)ifs->state.tokens); 485 486 FREE(ifs); 487} 488 489 490static void * 491i915_create_vs_state(struct pipe_context *pipe, 492 const struct pipe_shader_state *templ) 493{ 494 struct i915_context *i915 = i915_context(pipe); 495 496 /* just pass-through to draw module */ 497 return draw_create_vertex_shader(i915->draw, templ); 498} 499 500static void i915_bind_vs_state(struct pipe_context *pipe, void *shader) 501{ 502 struct i915_context *i915 = i915_context(pipe); 503 504 /* just pass-through to draw module */ 505 draw_bind_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 506 507 i915->dirty |= I915_NEW_VS; 508} 509 510static void i915_delete_vs_state(struct pipe_context *pipe, void *shader) 511{ 512 struct i915_context *i915 = i915_context(pipe); 513 514 /* just pass-through to draw module */ 515 draw_delete_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 516} 517 518static void i915_set_constant_buffer(struct pipe_context *pipe, 519 uint shader, uint index, 520 const struct pipe_constant_buffer *buf) 521{ 522 struct i915_context *i915 = i915_context(pipe); 523 struct pipe_screen *screen = pipe->screen; 524 draw_flush(i915->draw); 525 526 assert(shader < PIPE_SHADER_TYPES); 527 assert(index == 0); 528 529 /* Make a copy of shader constants. 530 * During fragment program translation we may add additional 531 * constants to the array. 532 * 533 * We want to consider the situation where some user constants 534 * (ex: a material color) may change frequently but the shader program 535 * stays the same. In that case we should only be updating the first 536 * N constants, leaving any extras from shader translation alone. 537 */ 538 if (buf) { 539 void *mapped; 540 if (buf->buffer && buf->buffer->size && 541 (mapped = pipe_buffer_map(screen, buf->buffer, 542 PIPE_BUFFER_USAGE_CPU_READ))) { 543 memcpy(i915->current.constants[shader], mapped, buf->buffer->size); 544 pipe_buffer_unmap(screen, buf->buffer); 545 i915->current.num_user_constants[shader] 546 = buf->buffer->size / (4 * sizeof(float)); 547 } 548 else { 549 i915->current.num_user_constants[shader] = 0; 550 } 551 } 552 553 i915->dirty |= I915_NEW_CONSTANTS; 554} 555 556 557static void i915_set_sampler_textures(struct pipe_context *pipe, 558 unsigned num, 559 struct pipe_texture **texture) 560{ 561 struct i915_context *i915 = i915_context(pipe); 562 uint i; 563 564 assert(num <= PIPE_MAX_SAMPLERS); 565 566 /* Check for no-op */ 567 if (num == i915->num_textures && 568 !memcmp(i915->texture, texture, num * sizeof(struct pipe_texture *))) 569 return; 570 571 /* Fixes wrong texture in texobj with VBUF */ 572 draw_flush(i915->draw); 573 574 for (i = 0; i < num; i++) 575 pipe_texture_reference((struct pipe_texture **) &i915->texture[i], 576 texture[i]); 577 578 for (i = num; i < i915->num_textures; i++) 579 pipe_texture_reference((struct pipe_texture **) &i915->texture[i], 580 NULL); 581 582 i915->num_textures = num; 583 584 i915->dirty |= I915_NEW_TEXTURE; 585} 586 587 588 589static void i915_set_framebuffer_state(struct pipe_context *pipe, 590 const struct pipe_framebuffer_state *fb) 591{ 592 struct i915_context *i915 = i915_context(pipe); 593 int i; 594 595 draw_flush(i915->draw); 596 597 i915->framebuffer.width = fb->width; 598 i915->framebuffer.height = fb->height; 599 i915->framebuffer.nr_cbufs = fb->nr_cbufs; 600 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { 601 pipe_surface_reference(&i915->framebuffer.cbufs[i], fb->cbufs[i]); 602 } 603 pipe_surface_reference(&i915->framebuffer.zsbuf, fb->zsbuf); 604 605 i915->dirty |= I915_NEW_FRAMEBUFFER; 606} 607 608 609 610static void i915_set_clip_state( struct pipe_context *pipe, 611 const struct pipe_clip_state *clip ) 612{ 613 struct i915_context *i915 = i915_context(pipe); 614 draw_flush(i915->draw); 615 616 draw_set_clip_state(i915->draw, clip); 617 618 i915->dirty |= I915_NEW_CLIP; 619} 620 621 622 623/* Called when driver state tracker notices changes to the viewport 624 * matrix: 625 */ 626static void i915_set_viewport_state( struct pipe_context *pipe, 627 const struct pipe_viewport_state *viewport ) 628{ 629 struct i915_context *i915 = i915_context(pipe); 630 631 i915->viewport = *viewport; /* struct copy */ 632 633 /* pass the viewport info to the draw module */ 634 draw_set_viewport_state(i915->draw, &i915->viewport); 635 636 i915->dirty |= I915_NEW_VIEWPORT; 637} 638 639 640static void * 641i915_create_rasterizer_state(struct pipe_context *pipe, 642 const struct pipe_rasterizer_state *rasterizer) 643{ 644 struct i915_rasterizer_state *cso = CALLOC_STRUCT( i915_rasterizer_state ); 645 646 cso->templ = rasterizer; 647 cso->color_interp = rasterizer->flatshade ? INTERP_CONSTANT : INTERP_LINEAR; 648 cso->light_twoside = rasterizer->light_twoside; 649 cso->ds[0].u = _3DSTATE_DEPTH_OFFSET_SCALE; 650 cso->ds[1].f = rasterizer->offset_scale; 651 if (rasterizer->poly_stipple_enable) { 652 cso->st |= ST1_ENABLE; 653 } 654 655 if (rasterizer->scissor) 656 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT; 657 else 658 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT; 659 660 switch (rasterizer->cull_mode) { 661 case PIPE_WINDING_NONE: 662 cso->LIS4 |= S4_CULLMODE_NONE; 663 break; 664 case PIPE_WINDING_CW: 665 cso->LIS4 |= S4_CULLMODE_CW; 666 break; 667 case PIPE_WINDING_CCW: 668 cso->LIS4 |= S4_CULLMODE_CCW; 669 break; 670 case PIPE_WINDING_BOTH: 671 cso->LIS4 |= S4_CULLMODE_BOTH; 672 break; 673 } 674 675 { 676 int line_width = CLAMP((int)(rasterizer->line_width * 2), 1, 0xf); 677 678 cso->LIS4 |= line_width << S4_LINE_WIDTH_SHIFT; 679 680 if (rasterizer->line_smooth) 681 cso->LIS4 |= S4_LINE_ANTIALIAS_ENABLE; 682 } 683 684 { 685 int point_size = CLAMP((int) rasterizer->point_size, 1, 0xff); 686 687 cso->LIS4 |= point_size << S4_POINT_WIDTH_SHIFT; 688 } 689 690 if (rasterizer->flatshade) { 691 cso->LIS4 |= (S4_FLATSHADE_ALPHA | 692 S4_FLATSHADE_COLOR | 693 S4_FLATSHADE_SPECULAR); 694 } 695 696 cso->LIS7 = fui( rasterizer->offset_units ); 697 698 699 return cso; 700} 701 702static void i915_bind_rasterizer_state( struct pipe_context *pipe, 703 void *raster ) 704{ 705 struct i915_context *i915 = i915_context(pipe); 706 707 i915->rasterizer = (struct i915_rasterizer_state *)raster; 708 709 /* pass-through to draw module */ 710 draw_set_rasterizer_state(i915->draw, 711 (i915->rasterizer ? i915->rasterizer->templ : NULL)); 712 713 i915->dirty |= I915_NEW_RASTERIZER; 714} 715 716static void i915_delete_rasterizer_state(struct pipe_context *pipe, 717 void *raster) 718{ 719 FREE(raster); 720} 721 722static void i915_set_vertex_buffers(struct pipe_context *pipe, 723 unsigned count, 724 const struct pipe_vertex_buffer *buffers) 725{ 726 struct i915_context *i915 = i915_context(pipe); 727 /* Because we change state before the draw_set_vertex_buffers call 728 * we need a flush here, just to be sure. 729 */ 730 draw_flush(i915->draw); 731 732 memcpy(i915->vertex_buffer, buffers, count * sizeof(buffers[0])); 733 i915->num_vertex_buffers = count; 734 735 /* pass-through to draw module */ 736 draw_set_vertex_buffers(i915->draw, count, buffers); 737} 738 739static void i915_set_vertex_elements(struct pipe_context *pipe, 740 unsigned count, 741 const struct pipe_vertex_element *elements) 742{ 743 struct i915_context *i915 = i915_context(pipe); 744 /* Because we change state before the draw_set_vertex_buffers call 745 * we need a flush here, just to be sure. 746 */ 747 draw_flush(i915->draw); 748 749 i915->num_vertex_elements = count; 750 /* pass-through to draw module */ 751 draw_set_vertex_elements(i915->draw, count, elements); 752} 753 754 755static void i915_set_edgeflags(struct pipe_context *pipe, 756 const unsigned *bitfield) 757{ 758 /* TODO do something here */ 759} 760 761void 762i915_init_state_functions( struct i915_context *i915 ) 763{ 764 i915->base.set_edgeflags = i915_set_edgeflags; 765 i915->base.create_blend_state = i915_create_blend_state; 766 i915->base.bind_blend_state = i915_bind_blend_state; 767 i915->base.delete_blend_state = i915_delete_blend_state; 768 769 i915->base.create_sampler_state = i915_create_sampler_state; 770 i915->base.bind_fragment_sampler_states = i915_bind_sampler_states; 771 i915->base.delete_sampler_state = i915_delete_sampler_state; 772 773 i915->base.create_depth_stencil_alpha_state = i915_create_depth_stencil_state; 774 i915->base.bind_depth_stencil_alpha_state = i915_bind_depth_stencil_state; 775 i915->base.delete_depth_stencil_alpha_state = i915_delete_depth_stencil_state; 776 777 i915->base.create_rasterizer_state = i915_create_rasterizer_state; 778 i915->base.bind_rasterizer_state = i915_bind_rasterizer_state; 779 i915->base.delete_rasterizer_state = i915_delete_rasterizer_state; 780 i915->base.create_fs_state = i915_create_fs_state; 781 i915->base.bind_fs_state = i915_bind_fs_state; 782 i915->base.delete_fs_state = i915_delete_fs_state; 783 i915->base.create_vs_state = i915_create_vs_state; 784 i915->base.bind_vs_state = i915_bind_vs_state; 785 i915->base.delete_vs_state = i915_delete_vs_state; 786 787 i915->base.set_blend_color = i915_set_blend_color; 788 i915->base.set_clip_state = i915_set_clip_state; 789 i915->base.set_constant_buffer = i915_set_constant_buffer; 790 i915->base.set_framebuffer_state = i915_set_framebuffer_state; 791 792 i915->base.set_polygon_stipple = i915_set_polygon_stipple; 793 i915->base.set_scissor_state = i915_set_scissor_state; 794 i915->base.set_fragment_sampler_textures = i915_set_sampler_textures; 795 i915->base.set_viewport_state = i915_set_viewport_state; 796 i915->base.set_vertex_buffers = i915_set_vertex_buffers; 797 i915->base.set_vertex_elements = i915_set_vertex_elements; 798} 799