i915_state.c revision 47bfbd452c93e6a8db013fb90d9f42210cf24889
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 43/* The i915 (and related graphics cores) do not support GL_CLAMP. The 44 * Intel drivers for "other operating systems" implement GL_CLAMP as 45 * GL_CLAMP_TO_EDGE, so the same is done here. 46 */ 47static unsigned 48translate_wrap_mode(unsigned wrap) 49{ 50 switch (wrap) { 51 case PIPE_TEX_WRAP_REPEAT: 52 return TEXCOORDMODE_WRAP; 53 case PIPE_TEX_WRAP_CLAMP: 54 return TEXCOORDMODE_CLAMP_EDGE; /* not quite correct */ 55 case PIPE_TEX_WRAP_CLAMP_TO_EDGE: 56 return TEXCOORDMODE_CLAMP_EDGE; 57 case PIPE_TEX_WRAP_CLAMP_TO_BORDER: 58 return TEXCOORDMODE_CLAMP_BORDER; 59 /* 60 case PIPE_TEX_WRAP_MIRRORED_REPEAT: 61 return TEXCOORDMODE_MIRROR; 62 */ 63 default: 64 return TEXCOORDMODE_WRAP; 65 } 66} 67 68static unsigned translate_img_filter( unsigned filter ) 69{ 70 switch (filter) { 71 case PIPE_TEX_FILTER_NEAREST: 72 return FILTER_NEAREST; 73 case PIPE_TEX_FILTER_LINEAR: 74 return FILTER_LINEAR; 75 default: 76 assert(0); 77 return FILTER_NEAREST; 78 } 79} 80 81static unsigned translate_mip_filter( unsigned filter ) 82{ 83 switch (filter) { 84 case PIPE_TEX_MIPFILTER_NONE: 85 return MIPFILTER_NONE; 86 case PIPE_TEX_MIPFILTER_NEAREST: 87 return MIPFILTER_NEAREST; 88 case PIPE_TEX_MIPFILTER_LINEAR: 89 return MIPFILTER_LINEAR; 90 default: 91 assert(0); 92 return MIPFILTER_NONE; 93 } 94} 95 96 97/* None of this state is actually used for anything yet. 98 */ 99static void * 100i915_create_blend_state(struct pipe_context *pipe, 101 const struct pipe_blend_state *blend) 102{ 103 struct i915_blend_state *cso_data = CALLOC_STRUCT( i915_blend_state ); 104 105 { 106 unsigned eqRGB = blend->rt[0].rgb_func; 107 unsigned srcRGB = blend->rt[0].rgb_src_factor; 108 unsigned dstRGB = blend->rt[0].rgb_dst_factor; 109 110 unsigned eqA = blend->rt[0].alpha_func; 111 unsigned srcA = blend->rt[0].alpha_src_factor; 112 unsigned dstA = blend->rt[0].alpha_dst_factor; 113 114 /* Special handling for MIN/MAX filter modes handled at 115 * state_tracker level. 116 */ 117 118 if (srcA != srcRGB || 119 dstA != dstRGB || 120 eqA != eqRGB) { 121 122 cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | 123 IAB_MODIFY_ENABLE | 124 IAB_ENABLE | 125 IAB_MODIFY_FUNC | 126 IAB_MODIFY_SRC_FACTOR | 127 IAB_MODIFY_DST_FACTOR | 128 SRC_ABLND_FACT(i915_translate_blend_factor(srcA)) | 129 DST_ABLND_FACT(i915_translate_blend_factor(dstA)) | 130 (i915_translate_blend_func(eqA) << IAB_FUNC_SHIFT)); 131 } 132 else { 133 cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | 134 IAB_MODIFY_ENABLE | 135 0); 136 } 137 } 138 139 cso_data->modes4 |= (_3DSTATE_MODES_4_CMD | 140 ENABLE_LOGIC_OP_FUNC | 141 LOGIC_OP_FUNC(i915_translate_logic_op(blend->logicop_func))); 142 143 if (blend->logicop_enable) 144 cso_data->LIS5 |= S5_LOGICOP_ENABLE; 145 146 if (blend->dither) 147 cso_data->LIS5 |= S5_COLOR_DITHER_ENABLE; 148 149 if ((blend->rt[0].colormask & PIPE_MASK_R) == 0) 150 cso_data->LIS5 |= S5_WRITEDISABLE_RED; 151 152 if ((blend->rt[0].colormask & PIPE_MASK_G) == 0) 153 cso_data->LIS5 |= S5_WRITEDISABLE_GREEN; 154 155 if ((blend->rt[0].colormask & PIPE_MASK_B) == 0) 156 cso_data->LIS5 |= S5_WRITEDISABLE_BLUE; 157 158 if ((blend->rt[0].colormask & PIPE_MASK_A) == 0) 159 cso_data->LIS5 |= S5_WRITEDISABLE_ALPHA; 160 161 if (blend->rt[0].blend_enable) { 162 unsigned funcRGB = blend->rt[0].rgb_func; 163 unsigned srcRGB = blend->rt[0].rgb_src_factor; 164 unsigned dstRGB = blend->rt[0].rgb_dst_factor; 165 166 cso_data->LIS6 |= (S6_CBUF_BLEND_ENABLE | 167 SRC_BLND_FACT(i915_translate_blend_factor(srcRGB)) | 168 DST_BLND_FACT(i915_translate_blend_factor(dstRGB)) | 169 (i915_translate_blend_func(funcRGB) << S6_CBUF_BLEND_FUNC_SHIFT)); 170 } 171 172 return cso_data; 173} 174 175static void i915_bind_blend_state(struct pipe_context *pipe, 176 void *blend) 177{ 178 struct i915_context *i915 = i915_context(pipe); 179 draw_flush(i915->draw); 180 181 i915->blend = (struct i915_blend_state*)blend; 182 183 i915->dirty |= I915_NEW_BLEND; 184} 185 186 187static void i915_delete_blend_state(struct pipe_context *pipe, void *blend) 188{ 189 FREE(blend); 190} 191 192static void i915_set_blend_color( struct pipe_context *pipe, 193 const struct pipe_blend_color *blend_color ) 194{ 195 struct i915_context *i915 = i915_context(pipe); 196 draw_flush(i915->draw); 197 198 i915->blend_color = *blend_color; 199 200 i915->dirty |= I915_NEW_BLEND; 201} 202 203static void i915_set_stencil_ref( struct pipe_context *pipe, 204 const struct pipe_stencil_ref *stencil_ref ) 205{ 206 struct i915_context *i915 = i915_context(pipe); 207 draw_flush(i915->draw); 208 209 i915->stencil_ref = *stencil_ref; 210 211 i915->dirty |= I915_NEW_DEPTH_STENCIL; 212} 213 214static void * 215i915_create_sampler_state(struct pipe_context *pipe, 216 const struct pipe_sampler_state *sampler) 217{ 218 struct i915_sampler_state *cso = CALLOC_STRUCT( i915_sampler_state ); 219 const unsigned ws = sampler->wrap_s; 220 const unsigned wt = sampler->wrap_t; 221 const unsigned wr = sampler->wrap_r; 222 unsigned minFilt, magFilt; 223 unsigned mipFilt; 224 225 cso->templ = sampler; 226 227 mipFilt = translate_mip_filter(sampler->min_mip_filter); 228 minFilt = translate_img_filter( sampler->min_img_filter ); 229 magFilt = translate_img_filter( sampler->mag_img_filter ); 230 231 if (sampler->max_anisotropy > 1) 232 minFilt = magFilt = FILTER_ANISOTROPIC; 233 234 if (sampler->max_anisotropy > 2) { 235 cso->state[0] |= SS2_MAX_ANISO_4; 236 } 237 238 { 239 int b = (int) (sampler->lod_bias * 16.0); 240 b = CLAMP(b, -256, 255); 241 cso->state[0] |= ((b << SS2_LOD_BIAS_SHIFT) & SS2_LOD_BIAS_MASK); 242 } 243 244 /* Shadow: 245 */ 246 if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) 247 { 248 cso->state[0] |= (SS2_SHADOW_ENABLE | 249 i915_translate_compare_func(sampler->compare_func)); 250 251 minFilt = FILTER_4X4_FLAT; 252 magFilt = FILTER_4X4_FLAT; 253 } 254 255 cso->state[0] |= ((minFilt << SS2_MIN_FILTER_SHIFT) | 256 (mipFilt << SS2_MIP_FILTER_SHIFT) | 257 (magFilt << SS2_MAG_FILTER_SHIFT)); 258 259 cso->state[1] |= 260 ((translate_wrap_mode(ws) << SS3_TCX_ADDR_MODE_SHIFT) | 261 (translate_wrap_mode(wt) << SS3_TCY_ADDR_MODE_SHIFT) | 262 (translate_wrap_mode(wr) << SS3_TCZ_ADDR_MODE_SHIFT)); 263 264 if (sampler->normalized_coords) 265 cso->state[1] |= SS3_NORMALIZED_COORDS; 266 267 { 268 int minlod = (int) (16.0 * sampler->min_lod); 269 int maxlod = (int) (16.0 * sampler->max_lod); 270 minlod = CLAMP(minlod, 0, 16 * 11); 271 maxlod = CLAMP(maxlod, 0, 16 * 11); 272 273 if (minlod > maxlod) 274 maxlod = minlod; 275 276 cso->minlod = minlod; 277 cso->maxlod = maxlod; 278 } 279 280 { 281 ubyte r = float_to_ubyte(sampler->border_color[0]); 282 ubyte g = float_to_ubyte(sampler->border_color[1]); 283 ubyte b = float_to_ubyte(sampler->border_color[2]); 284 ubyte a = float_to_ubyte(sampler->border_color[3]); 285 cso->state[2] = I915PACKCOLOR8888(r, g, b, a); 286 } 287 return cso; 288} 289 290static void i915_bind_sampler_states(struct pipe_context *pipe, 291 unsigned num, void **sampler) 292{ 293 struct i915_context *i915 = i915_context(pipe); 294 unsigned i; 295 296 assert(num <= PIPE_MAX_SAMPLERS); 297 298 /* Check for no-op */ 299 if (num == i915->num_samplers && 300 !memcmp(i915->sampler, sampler, num * sizeof(void *))) 301 return; 302 303 draw_flush(i915->draw); 304 305 for (i = 0; i < num; ++i) 306 i915->sampler[i] = sampler[i]; 307 for (i = num; i < PIPE_MAX_SAMPLERS; ++i) 308 i915->sampler[i] = NULL; 309 310 i915->num_samplers = num; 311 312 i915->dirty |= I915_NEW_SAMPLER; 313} 314 315static void i915_delete_sampler_state(struct pipe_context *pipe, 316 void *sampler) 317{ 318 FREE(sampler); 319} 320 321 322/** XXX move someday? Or consolidate all these simple state setters 323 * into one file. 324 */ 325 326static void * 327i915_create_depth_stencil_state(struct pipe_context *pipe, 328 const struct pipe_depth_stencil_alpha_state *depth_stencil) 329{ 330 struct i915_depth_stencil_state *cso = CALLOC_STRUCT( i915_depth_stencil_state ); 331 332 { 333 int testmask = depth_stencil->stencil[0].valuemask & 0xff; 334 int writemask = depth_stencil->stencil[0].writemask & 0xff; 335 336 cso->stencil_modes4 |= (_3DSTATE_MODES_4_CMD | 337 ENABLE_STENCIL_TEST_MASK | 338 STENCIL_TEST_MASK(testmask) | 339 ENABLE_STENCIL_WRITE_MASK | 340 STENCIL_WRITE_MASK(writemask)); 341 } 342 343 if (depth_stencil->stencil[0].enabled) { 344 int test = i915_translate_compare_func(depth_stencil->stencil[0].func); 345 int fop = i915_translate_stencil_op(depth_stencil->stencil[0].fail_op); 346 int dfop = i915_translate_stencil_op(depth_stencil->stencil[0].zfail_op); 347 int dpop = i915_translate_stencil_op(depth_stencil->stencil[0].zpass_op); 348 349 cso->stencil_LIS5 |= (S5_STENCIL_TEST_ENABLE | 350 S5_STENCIL_WRITE_ENABLE | 351 (test << S5_STENCIL_TEST_FUNC_SHIFT) | 352 (fop << S5_STENCIL_FAIL_SHIFT) | 353 (dfop << S5_STENCIL_PASS_Z_FAIL_SHIFT) | 354 (dpop << S5_STENCIL_PASS_Z_PASS_SHIFT)); 355 } 356 357 if (depth_stencil->stencil[1].enabled) { 358 int test = i915_translate_compare_func(depth_stencil->stencil[1].func); 359 int fop = i915_translate_stencil_op(depth_stencil->stencil[1].fail_op); 360 int dfop = i915_translate_stencil_op(depth_stencil->stencil[1].zfail_op); 361 int dpop = i915_translate_stencil_op(depth_stencil->stencil[1].zpass_op); 362 int tmask = depth_stencil->stencil[1].valuemask & 0xff; 363 int wmask = depth_stencil->stencil[1].writemask & 0xff; 364 365 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 366 BFO_ENABLE_STENCIL_FUNCS | 367 BFO_ENABLE_STENCIL_TWO_SIDE | 368 BFO_ENABLE_STENCIL_REF | 369 BFO_STENCIL_TWO_SIDE | 370 (test << BFO_STENCIL_TEST_SHIFT) | 371 (fop << BFO_STENCIL_FAIL_SHIFT) | 372 (dfop << BFO_STENCIL_PASS_Z_FAIL_SHIFT) | 373 (dpop << BFO_STENCIL_PASS_Z_PASS_SHIFT)); 374 375 cso->bfo[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS | 376 BFM_ENABLE_STENCIL_TEST_MASK | 377 BFM_ENABLE_STENCIL_WRITE_MASK | 378 (tmask << BFM_STENCIL_TEST_MASK_SHIFT) | 379 (wmask << BFM_STENCIL_WRITE_MASK_SHIFT)); 380 } 381 else { 382 /* This actually disables two-side stencil: The bit set is a 383 * modify-enable bit to indicate we are changing the two-side 384 * setting. Then there is a symbolic zero to show that we are 385 * setting the flag to zero/off. 386 */ 387 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 388 BFO_ENABLE_STENCIL_TWO_SIDE | 389 0); 390 cso->bfo[1] = 0; 391 } 392 393 if (depth_stencil->depth.enabled) { 394 int func = i915_translate_compare_func(depth_stencil->depth.func); 395 396 cso->depth_LIS6 |= (S6_DEPTH_TEST_ENABLE | 397 (func << S6_DEPTH_TEST_FUNC_SHIFT)); 398 399 if (depth_stencil->depth.writemask) 400 cso->depth_LIS6 |= S6_DEPTH_WRITE_ENABLE; 401 } 402 403 if (depth_stencil->alpha.enabled) { 404 int test = i915_translate_compare_func(depth_stencil->alpha.func); 405 ubyte refByte = float_to_ubyte(depth_stencil->alpha.ref_value); 406 407 cso->depth_LIS6 |= (S6_ALPHA_TEST_ENABLE | 408 (test << S6_ALPHA_TEST_FUNC_SHIFT) | 409 (((unsigned) refByte) << S6_ALPHA_REF_SHIFT)); 410 } 411 412 return cso; 413} 414 415static void i915_bind_depth_stencil_state(struct pipe_context *pipe, 416 void *depth_stencil) 417{ 418 struct i915_context *i915 = i915_context(pipe); 419 draw_flush(i915->draw); 420 421 i915->depth_stencil = (const struct i915_depth_stencil_state *)depth_stencil; 422 423 i915->dirty |= I915_NEW_DEPTH_STENCIL; 424} 425 426static void i915_delete_depth_stencil_state(struct pipe_context *pipe, 427 void *depth_stencil) 428{ 429 FREE(depth_stencil); 430} 431 432 433static void i915_set_scissor_state( struct pipe_context *pipe, 434 const struct pipe_scissor_state *scissor ) 435{ 436 struct i915_context *i915 = i915_context(pipe); 437 draw_flush(i915->draw); 438 439 memcpy( &i915->scissor, scissor, sizeof(*scissor) ); 440 i915->dirty |= I915_NEW_SCISSOR; 441} 442 443 444static void i915_set_polygon_stipple( struct pipe_context *pipe, 445 const struct pipe_poly_stipple *stipple ) 446{ 447} 448 449 450 451static void * 452i915_create_fs_state(struct pipe_context *pipe, 453 const struct pipe_shader_state *templ) 454{ 455 struct i915_context *i915 = i915_context(pipe); 456 struct i915_fragment_shader *ifs = CALLOC_STRUCT(i915_fragment_shader); 457 if (!ifs) 458 return NULL; 459 460 ifs->state.tokens = tgsi_dup_tokens(templ->tokens); 461 462 tgsi_scan_shader(templ->tokens, &ifs->info); 463 464 /* The shader's compiled to i915 instructions here */ 465 i915_translate_fragment_program(i915, ifs); 466 467 return ifs; 468} 469 470static void 471i915_bind_fs_state(struct pipe_context *pipe, void *shader) 472{ 473 struct i915_context *i915 = i915_context(pipe); 474 draw_flush(i915->draw); 475 476 i915->fs = (struct i915_fragment_shader*) shader; 477 478 i915->dirty |= I915_NEW_FS; 479} 480 481static 482void i915_delete_fs_state(struct pipe_context *pipe, void *shader) 483{ 484 struct i915_fragment_shader *ifs = (struct i915_fragment_shader *) shader; 485 486 if (ifs->program) 487 FREE(ifs->program); 488 ifs->program_len = 0; 489 490 FREE((struct tgsi_token *)ifs->state.tokens); 491 492 FREE(ifs); 493} 494 495 496static void * 497i915_create_vs_state(struct pipe_context *pipe, 498 const struct pipe_shader_state *templ) 499{ 500 struct i915_context *i915 = i915_context(pipe); 501 502 /* just pass-through to draw module */ 503 return draw_create_vertex_shader(i915->draw, templ); 504} 505 506static void i915_bind_vs_state(struct pipe_context *pipe, void *shader) 507{ 508 struct i915_context *i915 = i915_context(pipe); 509 510 /* just pass-through to draw module */ 511 draw_bind_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 512 513 i915->dirty |= I915_NEW_VS; 514} 515 516static void i915_delete_vs_state(struct pipe_context *pipe, void *shader) 517{ 518 struct i915_context *i915 = i915_context(pipe); 519 520 /* just pass-through to draw module */ 521 draw_delete_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 522} 523 524static void i915_set_constant_buffer(struct pipe_context *pipe, 525 uint shader, uint index, 526 struct pipe_buffer *buf) 527{ 528 struct i915_context *i915 = i915_context(pipe); 529 struct pipe_screen *screen = pipe->screen; 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 void *mapped; 546 if (buf->size && 547 (mapped = pipe_buffer_map(screen, buf, 548 PIPE_BUFFER_USAGE_CPU_READ))) { 549 memcpy(i915->current.constants[shader], mapped, buf->size); 550 pipe_buffer_unmap(screen, buf); 551 i915->current.num_user_constants[shader] 552 = buf->size / (4 * sizeof(float)); 553 } 554 else { 555 i915->current.num_user_constants[shader] = 0; 556 } 557 } 558 559 i915->dirty |= I915_NEW_CONSTANTS; 560} 561 562 563static void i915_set_fragment_sampler_views(struct pipe_context *pipe, 564 unsigned num, 565 struct pipe_sampler_view **views) 566{ 567 struct i915_context *i915 = i915_context(pipe); 568 uint i; 569 570 assert(num <= PIPE_MAX_SAMPLERS); 571 572 /* Check for no-op */ 573 if (num == i915->num_fragment_sampler_views && 574 !memcmp(i915->fragment_sampler_views, views, num * sizeof(struct pipe_sampler_view *))) 575 return; 576 577 /* Fixes wrong texture in texobj with VBUF */ 578 draw_flush(i915->draw); 579 580 for (i = 0; i < num; i++) 581 pipe_sampler_view_reference(&i915->fragment_sampler_views[i], 582 views[i]); 583 584 for (i = num; i < i915->num_fragment_sampler_views; i++) 585 pipe_sampler_view_reference(&i915->fragment_sampler_views[i], 586 NULL); 587 588 i915->num_fragment_sampler_views = num; 589 590 i915->dirty |= I915_NEW_SAMPLER_VIEW; 591} 592 593 594static struct pipe_sampler_view * 595i915_create_sampler_view(struct pipe_context *pipe, 596 struct pipe_texture *texture, 597 const struct pipe_sampler_view *templ) 598{ 599 struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view); 600 601 if (view) { 602 *view = *templ; 603 view->reference.count = 1; 604 view->texture = NULL; 605 pipe_texture_reference(&view->texture, texture); 606 view->context = pipe; 607 } 608 609 return view; 610} 611 612 613static void 614i915_sampler_view_destroy(struct pipe_context *pipe, 615 struct pipe_sampler_view *view) 616{ 617 pipe_texture_reference(&view->texture, NULL); 618 FREE(view); 619} 620 621 622static void i915_set_framebuffer_state(struct pipe_context *pipe, 623 const struct pipe_framebuffer_state *fb) 624{ 625 struct i915_context *i915 = i915_context(pipe); 626 int i; 627 628 draw_flush(i915->draw); 629 630 i915->framebuffer.width = fb->width; 631 i915->framebuffer.height = fb->height; 632 i915->framebuffer.nr_cbufs = fb->nr_cbufs; 633 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { 634 pipe_surface_reference(&i915->framebuffer.cbufs[i], fb->cbufs[i]); 635 } 636 pipe_surface_reference(&i915->framebuffer.zsbuf, fb->zsbuf); 637 638 i915->dirty |= I915_NEW_FRAMEBUFFER; 639} 640 641 642 643static void i915_set_clip_state( struct pipe_context *pipe, 644 const struct pipe_clip_state *clip ) 645{ 646 struct i915_context *i915 = i915_context(pipe); 647 draw_flush(i915->draw); 648 649 draw_set_clip_state(i915->draw, clip); 650 651 i915->dirty |= I915_NEW_CLIP; 652} 653 654 655 656/* Called when driver state tracker notices changes to the viewport 657 * matrix: 658 */ 659static void i915_set_viewport_state( struct pipe_context *pipe, 660 const struct pipe_viewport_state *viewport ) 661{ 662 struct i915_context *i915 = i915_context(pipe); 663 664 i915->viewport = *viewport; /* struct copy */ 665 666 /* pass the viewport info to the draw module */ 667 draw_set_viewport_state(i915->draw, &i915->viewport); 668 669 i915->dirty |= I915_NEW_VIEWPORT; 670} 671 672 673static void * 674i915_create_rasterizer_state(struct pipe_context *pipe, 675 const struct pipe_rasterizer_state *rasterizer) 676{ 677 struct i915_rasterizer_state *cso = CALLOC_STRUCT( i915_rasterizer_state ); 678 679 cso->templ = rasterizer; 680 cso->color_interp = rasterizer->flatshade ? INTERP_CONSTANT : INTERP_LINEAR; 681 cso->light_twoside = rasterizer->light_twoside; 682 cso->ds[0].u = _3DSTATE_DEPTH_OFFSET_SCALE; 683 cso->ds[1].f = rasterizer->offset_scale; 684 if (rasterizer->poly_stipple_enable) { 685 cso->st |= ST1_ENABLE; 686 } 687 688 if (rasterizer->scissor) 689 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT; 690 else 691 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT; 692 693 switch (rasterizer->cull_mode) { 694 case PIPE_WINDING_NONE: 695 cso->LIS4 |= S4_CULLMODE_NONE; 696 break; 697 case PIPE_WINDING_CW: 698 cso->LIS4 |= S4_CULLMODE_CW; 699 break; 700 case PIPE_WINDING_CCW: 701 cso->LIS4 |= S4_CULLMODE_CCW; 702 break; 703 case PIPE_WINDING_BOTH: 704 cso->LIS4 |= S4_CULLMODE_BOTH; 705 break; 706 } 707 708 { 709 int line_width = CLAMP((int)(rasterizer->line_width * 2), 1, 0xf); 710 711 cso->LIS4 |= line_width << S4_LINE_WIDTH_SHIFT; 712 713 if (rasterizer->line_smooth) 714 cso->LIS4 |= S4_LINE_ANTIALIAS_ENABLE; 715 } 716 717 { 718 int point_size = CLAMP((int) rasterizer->point_size, 1, 0xff); 719 720 cso->LIS4 |= point_size << S4_POINT_WIDTH_SHIFT; 721 } 722 723 if (rasterizer->flatshade) { 724 cso->LIS4 |= (S4_FLATSHADE_ALPHA | 725 S4_FLATSHADE_COLOR | 726 S4_FLATSHADE_SPECULAR); 727 } 728 729 cso->LIS7 = fui( rasterizer->offset_units ); 730 731 732 return cso; 733} 734 735static void i915_bind_rasterizer_state( struct pipe_context *pipe, 736 void *raster ) 737{ 738 struct i915_context *i915 = i915_context(pipe); 739 740 i915->rasterizer = (struct i915_rasterizer_state *)raster; 741 742 /* pass-through to draw module */ 743 draw_set_rasterizer_state(i915->draw, 744 (i915->rasterizer ? i915->rasterizer->templ : NULL)); 745 746 i915->dirty |= I915_NEW_RASTERIZER; 747} 748 749static void i915_delete_rasterizer_state(struct pipe_context *pipe, 750 void *raster) 751{ 752 FREE(raster); 753} 754 755static void i915_set_vertex_buffers(struct pipe_context *pipe, 756 unsigned count, 757 const struct pipe_vertex_buffer *buffers) 758{ 759 struct i915_context *i915 = i915_context(pipe); 760 /* Because we change state before the draw_set_vertex_buffers call 761 * we need a flush here, just to be sure. 762 */ 763 draw_flush(i915->draw); 764 765 memcpy(i915->vertex_buffer, buffers, count * sizeof(buffers[0])); 766 i915->num_vertex_buffers = count; 767 768 /* pass-through to draw module */ 769 draw_set_vertex_buffers(i915->draw, count, buffers); 770} 771 772static void * 773i915_create_vertex_elements_state(struct pipe_context *pipe, 774 unsigned count, 775 const struct pipe_vertex_element *attribs) 776{ 777 struct i915_velems_state *velems; 778 assert(count <= PIPE_MAX_ATTRIBS); 779 velems = (struct i915_velems_state *) MALLOC(sizeof(struct i915_velems_state)); 780 if (velems) { 781 velems->count = count; 782 memcpy(velems->velem, attribs, sizeof(*attribs) * count); 783 } 784 return velems; 785} 786 787static void 788i915_bind_vertex_elements_state(struct pipe_context *pipe, 789 void *velems) 790{ 791 struct i915_context *i915 = i915_context(pipe); 792 struct i915_velems_state *i915_velems = (struct i915_velems_state *) velems; 793 794 /* Because we change state before the draw_set_vertex_buffers call 795 * we need a flush here, just to be sure. 796 */ 797 draw_flush(i915->draw); 798 799 /* pass-through to draw module */ 800 if (i915_velems) { 801 draw_set_vertex_elements(i915->draw, 802 i915_velems->count, i915_velems->velem); 803 } 804} 805 806static void 807i915_delete_vertex_elements_state(struct pipe_context *pipe, void *velems) 808{ 809 FREE( velems ); 810} 811 812void 813i915_init_state_functions( struct i915_context *i915 ) 814{ 815 i915->base.create_blend_state = i915_create_blend_state; 816 i915->base.bind_blend_state = i915_bind_blend_state; 817 i915->base.delete_blend_state = i915_delete_blend_state; 818 819 i915->base.create_sampler_state = i915_create_sampler_state; 820 i915->base.bind_fragment_sampler_states = i915_bind_sampler_states; 821 i915->base.delete_sampler_state = i915_delete_sampler_state; 822 823 i915->base.create_depth_stencil_alpha_state = i915_create_depth_stencil_state; 824 i915->base.bind_depth_stencil_alpha_state = i915_bind_depth_stencil_state; 825 i915->base.delete_depth_stencil_alpha_state = i915_delete_depth_stencil_state; 826 827 i915->base.create_rasterizer_state = i915_create_rasterizer_state; 828 i915->base.bind_rasterizer_state = i915_bind_rasterizer_state; 829 i915->base.delete_rasterizer_state = i915_delete_rasterizer_state; 830 i915->base.create_fs_state = i915_create_fs_state; 831 i915->base.bind_fs_state = i915_bind_fs_state; 832 i915->base.delete_fs_state = i915_delete_fs_state; 833 i915->base.create_vs_state = i915_create_vs_state; 834 i915->base.bind_vs_state = i915_bind_vs_state; 835 i915->base.delete_vs_state = i915_delete_vs_state; 836 i915->base.create_vertex_elements_state = i915_create_vertex_elements_state; 837 i915->base.bind_vertex_elements_state = i915_bind_vertex_elements_state; 838 i915->base.delete_vertex_elements_state = i915_delete_vertex_elements_state; 839 840 i915->base.set_blend_color = i915_set_blend_color; 841 i915->base.set_stencil_ref = i915_set_stencil_ref; 842 i915->base.set_clip_state = i915_set_clip_state; 843 i915->base.set_constant_buffer = i915_set_constant_buffer; 844 i915->base.set_framebuffer_state = i915_set_framebuffer_state; 845 846 i915->base.set_polygon_stipple = i915_set_polygon_stipple; 847 i915->base.set_scissor_state = i915_set_scissor_state; 848 i915->base.set_fragment_sampler_views = i915_set_fragment_sampler_views; 849 i915->base.create_sampler_view = i915_create_sampler_view; 850 i915->base.sampler_view_destroy = i915_sampler_view_destroy; 851 i915->base.set_viewport_state = i915_set_viewport_state; 852 i915->base.set_vertex_buffers = i915_set_vertex_buffers; 853} 854