i915_state.c revision a7534d8943d74e81299b2ee4edc462baac9d1331
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 "util/u_transfer.h" 37#include "tgsi/tgsi_parse.h" 38 39#include "i915_context.h" 40#include "i915_reg.h" 41#include "i915_state_inlines.h" 42#include "i915_fpc.h" 43#include "i915_resource.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 case PIPE_TEX_WRAP_MIRROR_REPEAT: 62 return TEXCOORDMODE_MIRROR; 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 /* XXX here take the target fixup into account */ 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_shadow_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.f[0]); 283 ubyte g = float_to_ubyte(sampler->border_color.f[1]); 284 ubyte b = float_to_ubyte(sampler->border_color.f[2]); 285 ubyte a = float_to_ubyte(sampler->border_color.f[3]); 286 cso->state[2] = I915PACKCOLOR8888(r, g, b, a); 287 } 288 return cso; 289} 290 291static void i915_fixup_bind_sampler_states(struct pipe_context *pipe, 292 unsigned num, void **sampler) 293{ 294 struct i915_context *i915 = i915_context(pipe); 295 296 i915->saved_nr_samplers = num; 297 memcpy(&i915->saved_samplers, sampler, sizeof(void *) * num); 298 299 i915->saved_bind_sampler_states(pipe, num, sampler); 300} 301 302static void 303i915_bind_vertex_sampler_states(struct pipe_context *pipe, 304 unsigned num_samplers, 305 void **samplers) 306{ 307 struct i915_context *i915 = i915_context(pipe); 308 unsigned i; 309 310 assert(num_samplers <= PIPE_MAX_VERTEX_SAMPLERS); 311 312 /* Check for no-op */ 313 if (num_samplers == i915->num_vertex_samplers && 314 !memcmp(i915->vertex_samplers, samplers, num_samplers * sizeof(void *))) 315 return; 316 317 draw_flush(i915->draw); 318 319 for (i = 0; i < num_samplers; ++i) 320 i915->vertex_samplers[i] = samplers[i]; 321 for (i = num_samplers; i < PIPE_MAX_VERTEX_SAMPLERS; ++i) 322 i915->vertex_samplers[i] = NULL; 323 324 i915->num_vertex_samplers = num_samplers; 325 326 draw_set_samplers(i915->draw, 327 i915->vertex_samplers, 328 i915->num_vertex_samplers); 329} 330 331 332 333static void i915_bind_fragment_sampler_states(struct pipe_context *pipe, 334 unsigned num, void **sampler) 335{ 336 struct i915_context *i915 = i915_context(pipe); 337 unsigned i; 338 339 /* Check for no-op */ 340 if (num == i915->num_samplers && 341 !memcmp(i915->sampler, sampler, num * sizeof(void *))) 342 return; 343 344 draw_flush(i915->draw); 345 346 for (i = 0; i < num; ++i) 347 i915->sampler[i] = sampler[i]; 348 for (i = num; i < PIPE_MAX_SAMPLERS; ++i) 349 i915->sampler[i] = NULL; 350 351 i915->num_samplers = num; 352 353 i915->dirty |= I915_NEW_SAMPLER; 354} 355 356static void i915_delete_sampler_state(struct pipe_context *pipe, 357 void *sampler) 358{ 359 FREE(sampler); 360} 361 362 363/** 364 * Called before drawing VBO to map vertex samplers and hand them to draw 365 */ 366void 367i915_prepare_vertex_sampling(struct i915_context *i915) 368{ 369 struct i915_winsys *iws = i915->iws; 370 unsigned i,j; 371 uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS]; 372 uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS]; 373 const void* data[PIPE_MAX_TEXTURE_LEVELS]; 374 unsigned num = i915->num_vertex_sampler_views; 375 struct pipe_sampler_view **views = i915->vertex_sampler_views; 376 377 assert(num <= PIPE_MAX_VERTEX_SAMPLERS); 378 if (!num) 379 return; 380 381 for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) { 382 struct pipe_sampler_view *view = i < num ? views[i] : NULL; 383 384 if (view) { 385 struct pipe_resource *tex = view->texture; 386 struct i915_texture *i915_tex = i915_texture(tex); 387 ubyte *addr; 388 389 /* We're referencing the texture's internal data, so save a 390 * reference to it. 391 */ 392 pipe_resource_reference(&i915->mapped_vs_tex[i], tex); 393 394 i915->mapped_vs_tex_buffer[i] = i915_tex->buffer; 395 addr = iws->buffer_map(iws, 396 i915_tex->buffer, 397 FALSE /* read only */); 398 399 /* Setup array of mipmap level pointers */ 400 /* FIXME: handle 3D textures? */ 401 for (j = view->u.tex.first_level; j <= tex->last_level; j++) { 402 unsigned offset = i915_texture_offset(i915_tex, j , 0 /* FIXME depth */); 403 data[j] = addr + offset; 404 row_stride[j] = i915_tex->stride; 405 img_stride[j] = 0; /* FIXME */; 406 } 407 408 draw_set_mapped_texture(i915->draw, 409 i, 410 tex->width0, tex->height0, tex->depth0, 411 view->u.tex.first_level, tex->last_level, 412 row_stride, img_stride, data); 413 } else 414 i915->mapped_vs_tex[i] = NULL; 415 } 416} 417 418void 419i915_cleanup_vertex_sampling(struct i915_context *i915) 420{ 421 struct i915_winsys *iws = i915->iws; 422 unsigned i; 423 for (i = 0; i < Elements(i915->mapped_vs_tex); i++) { 424 if (i915->mapped_vs_tex_buffer[i]) { 425 iws->buffer_unmap(iws, i915->mapped_vs_tex_buffer[i]); 426 pipe_resource_reference(&i915->mapped_vs_tex[i], NULL); 427 } 428 } 429} 430 431 432 433/** XXX move someday? Or consolidate all these simple state setters 434 * into one file. 435 */ 436 437static void * 438i915_create_depth_stencil_state(struct pipe_context *pipe, 439 const struct pipe_depth_stencil_alpha_state *depth_stencil) 440{ 441 struct i915_depth_stencil_state *cso = CALLOC_STRUCT( i915_depth_stencil_state ); 442 443 { 444 int testmask = depth_stencil->stencil[0].valuemask & 0xff; 445 int writemask = depth_stencil->stencil[0].writemask & 0xff; 446 447 cso->stencil_modes4 |= (_3DSTATE_MODES_4_CMD | 448 ENABLE_STENCIL_TEST_MASK | 449 STENCIL_TEST_MASK(testmask) | 450 ENABLE_STENCIL_WRITE_MASK | 451 STENCIL_WRITE_MASK(writemask)); 452 } 453 454 if (depth_stencil->stencil[0].enabled) { 455 int test = i915_translate_compare_func(depth_stencil->stencil[0].func); 456 int fop = i915_translate_stencil_op(depth_stencil->stencil[0].fail_op); 457 int dfop = i915_translate_stencil_op(depth_stencil->stencil[0].zfail_op); 458 int dpop = i915_translate_stencil_op(depth_stencil->stencil[0].zpass_op); 459 460 cso->stencil_LIS5 |= (S5_STENCIL_TEST_ENABLE | 461 S5_STENCIL_WRITE_ENABLE | 462 (test << S5_STENCIL_TEST_FUNC_SHIFT) | 463 (fop << S5_STENCIL_FAIL_SHIFT) | 464 (dfop << S5_STENCIL_PASS_Z_FAIL_SHIFT) | 465 (dpop << S5_STENCIL_PASS_Z_PASS_SHIFT)); 466 } 467 468 if (depth_stencil->stencil[1].enabled) { 469 int test = i915_translate_compare_func(depth_stencil->stencil[1].func); 470 int fop = i915_translate_stencil_op(depth_stencil->stencil[1].fail_op); 471 int dfop = i915_translate_stencil_op(depth_stencil->stencil[1].zfail_op); 472 int dpop = i915_translate_stencil_op(depth_stencil->stencil[1].zpass_op); 473 int tmask = depth_stencil->stencil[1].valuemask & 0xff; 474 int wmask = depth_stencil->stencil[1].writemask & 0xff; 475 476 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 477 BFO_ENABLE_STENCIL_FUNCS | 478 BFO_ENABLE_STENCIL_TWO_SIDE | 479 BFO_ENABLE_STENCIL_REF | 480 BFO_STENCIL_TWO_SIDE | 481 (test << BFO_STENCIL_TEST_SHIFT) | 482 (fop << BFO_STENCIL_FAIL_SHIFT) | 483 (dfop << BFO_STENCIL_PASS_Z_FAIL_SHIFT) | 484 (dpop << BFO_STENCIL_PASS_Z_PASS_SHIFT)); 485 486 cso->bfo[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS | 487 BFM_ENABLE_STENCIL_TEST_MASK | 488 BFM_ENABLE_STENCIL_WRITE_MASK | 489 (tmask << BFM_STENCIL_TEST_MASK_SHIFT) | 490 (wmask << BFM_STENCIL_WRITE_MASK_SHIFT)); 491 } 492 else { 493 /* This actually disables two-side stencil: The bit set is a 494 * modify-enable bit to indicate we are changing the two-side 495 * setting. Then there is a symbolic zero to show that we are 496 * setting the flag to zero/off. 497 */ 498 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 499 BFO_ENABLE_STENCIL_TWO_SIDE | 500 0); 501 cso->bfo[1] = 0; 502 } 503 504 if (depth_stencil->depth.enabled) { 505 int func = i915_translate_compare_func(depth_stencil->depth.func); 506 507 cso->depth_LIS6 |= (S6_DEPTH_TEST_ENABLE | 508 (func << S6_DEPTH_TEST_FUNC_SHIFT)); 509 510 if (depth_stencil->depth.writemask) 511 cso->depth_LIS6 |= S6_DEPTH_WRITE_ENABLE; 512 } 513 514 if (depth_stencil->alpha.enabled) { 515 int test = i915_translate_compare_func(depth_stencil->alpha.func); 516 ubyte refByte = float_to_ubyte(depth_stencil->alpha.ref_value); 517 518 cso->depth_LIS6 |= (S6_ALPHA_TEST_ENABLE | 519 (test << S6_ALPHA_TEST_FUNC_SHIFT) | 520 (((unsigned) refByte) << S6_ALPHA_REF_SHIFT)); 521 } 522 523 return cso; 524} 525 526static void i915_bind_depth_stencil_state(struct pipe_context *pipe, 527 void *depth_stencil) 528{ 529 struct i915_context *i915 = i915_context(pipe); 530 draw_flush(i915->draw); 531 532 i915->depth_stencil = (const struct i915_depth_stencil_state *)depth_stencil; 533 534 i915->dirty |= I915_NEW_DEPTH_STENCIL; 535} 536 537static void i915_delete_depth_stencil_state(struct pipe_context *pipe, 538 void *depth_stencil) 539{ 540 FREE(depth_stencil); 541} 542 543 544static void i915_set_scissor_state( struct pipe_context *pipe, 545 const struct pipe_scissor_state *scissor ) 546{ 547 struct i915_context *i915 = i915_context(pipe); 548 draw_flush(i915->draw); 549 550 memcpy( &i915->scissor, scissor, sizeof(*scissor) ); 551 i915->dirty |= I915_NEW_SCISSOR; 552} 553 554 555static void i915_set_polygon_stipple( struct pipe_context *pipe, 556 const struct pipe_poly_stipple *stipple ) 557{ 558} 559 560 561 562static void * 563i915_create_fs_state(struct pipe_context *pipe, 564 const struct pipe_shader_state *templ) 565{ 566 struct i915_context *i915 = i915_context(pipe); 567 struct i915_fragment_shader *ifs = CALLOC_STRUCT(i915_fragment_shader); 568 if (!ifs) 569 return NULL; 570 571 ifs->draw_data = draw_create_fragment_shader(i915->draw, templ); 572 ifs->state.tokens = tgsi_dup_tokens(templ->tokens); 573 574 tgsi_scan_shader(templ->tokens, &ifs->info); 575 576 /* The shader's compiled to i915 instructions here */ 577 i915_translate_fragment_program(i915, ifs); 578 579 return ifs; 580} 581 582static void 583i915_fixup_bind_fs_state(struct pipe_context *pipe, void *shader) 584{ 585 struct i915_context *i915 = i915_context(pipe); 586 draw_flush(i915->draw); 587 588 i915->saved_fs = shader; 589 590 i915->saved_bind_fs_state(pipe, shader); 591} 592 593static void 594i915_bind_fs_state(struct pipe_context *pipe, void *shader) 595{ 596 struct i915_context *i915 = i915_context(pipe); 597 draw_flush(i915->draw); 598 599 i915->fs = (struct i915_fragment_shader*) shader; 600 601 draw_bind_fragment_shader(i915->draw, (i915->fs ? i915->fs->draw_data : NULL)); 602 603 i915->dirty |= I915_NEW_FS; 604} 605 606static 607void i915_delete_fs_state(struct pipe_context *pipe, void *shader) 608{ 609 struct i915_fragment_shader *ifs = (struct i915_fragment_shader *) shader; 610 611 if (ifs->program) { 612 FREE(ifs->program); 613 ifs->program = NULL; 614 FREE((struct tgsi_token *)ifs->state.tokens); 615 ifs->state.tokens = NULL; 616 } 617 ifs->program_len = 0; 618 619 FREE(ifs); 620} 621 622 623static void * 624i915_create_vs_state(struct pipe_context *pipe, 625 const struct pipe_shader_state *templ) 626{ 627 struct i915_context *i915 = i915_context(pipe); 628 629 /* just pass-through to draw module */ 630 return draw_create_vertex_shader(i915->draw, templ); 631} 632 633static void i915_bind_vs_state(struct pipe_context *pipe, void *shader) 634{ 635 struct i915_context *i915 = i915_context(pipe); 636 637 i915->saved_vs = shader; 638 639 /* just pass-through to draw module */ 640 draw_bind_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 641 642 i915->dirty |= I915_NEW_VS; 643} 644 645static void i915_delete_vs_state(struct pipe_context *pipe, void *shader) 646{ 647 struct i915_context *i915 = i915_context(pipe); 648 649 /* just pass-through to draw module */ 650 draw_delete_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 651} 652 653static void i915_set_constant_buffer(struct pipe_context *pipe, 654 uint shader, uint index, 655 struct pipe_resource *buf) 656{ 657 struct i915_context *i915 = i915_context(pipe); 658 unsigned new_num = 0; 659 boolean diff = TRUE; 660 661 662 /* XXX don't support geom shaders now */ 663 if (shader == PIPE_SHADER_GEOMETRY) 664 return; 665 666 /* if we have a new buffer compare it with the old one */ 667 if (buf) { 668 struct i915_buffer *ibuf = i915_buffer(buf); 669 struct pipe_resource *old_buf = i915->constants[shader]; 670 struct i915_buffer *old = old_buf ? i915_buffer(old_buf) : NULL; 671 unsigned old_num = i915->current.num_user_constants[shader]; 672 673 new_num = ibuf->b.b.width0 / 4 * sizeof(float); 674 675 if (old_num == new_num) { 676 if (old_num == 0) 677 diff = FALSE; 678#if 0 679 /* XXX no point in running this code since st/mesa only uses user buffers */ 680 /* Can't compare the buffer data since they are userbuffers */ 681 else if (old && old->free_on_destroy) 682 diff = memcmp(old->data, ibuf->data, ibuf->b.b.width0); 683#else 684 (void)old; 685#endif 686 } 687 } else { 688 diff = i915->current.num_user_constants[shader] != 0; 689 } 690 691 /* 692 * flush before updateing the state. 693 */ 694 if (diff && shader == PIPE_SHADER_FRAGMENT) 695 draw_flush(i915->draw); 696 697 pipe_resource_reference(&i915->constants[shader], buf); 698 i915->current.num_user_constants[shader] = new_num; 699 700 if (diff) 701 i915->dirty |= shader == PIPE_SHADER_VERTEX ? I915_NEW_VS_CONSTANTS : I915_NEW_FS_CONSTANTS; 702} 703 704 705static void 706i915_fixup_set_fragment_sampler_views(struct pipe_context *pipe, 707 unsigned num, 708 struct pipe_sampler_view **views) 709{ 710 struct i915_context *i915 = i915_context(pipe); 711 int i; 712 713 for (i = 0; i < num; i++) 714 pipe_sampler_view_reference(&i915->saved_sampler_views[i], 715 views[i]); 716 717 for (i = num; i < i915->saved_nr_sampler_views; i++) 718 pipe_sampler_view_reference(&i915->saved_sampler_views[i], 719 NULL); 720 721 i915->saved_nr_sampler_views = num; 722 723 i915->saved_set_sampler_views(pipe, num, views); 724} 725 726static void i915_set_fragment_sampler_views(struct pipe_context *pipe, 727 unsigned num, 728 struct pipe_sampler_view **views) 729{ 730 struct i915_context *i915 = i915_context(pipe); 731 uint i; 732 733 assert(num <= PIPE_MAX_SAMPLERS); 734 735 /* Check for no-op */ 736 if (num == i915->num_fragment_sampler_views && 737 !memcmp(i915->fragment_sampler_views, views, num * sizeof(struct pipe_sampler_view *))) 738 return; 739 740 /* Fixes wrong texture in texobj with VBUF */ 741 draw_flush(i915->draw); 742 743 for (i = 0; i < num; i++) 744 pipe_sampler_view_reference(&i915->fragment_sampler_views[i], 745 views[i]); 746 747 for (i = num; i < i915->num_fragment_sampler_views; i++) 748 pipe_sampler_view_reference(&i915->fragment_sampler_views[i], 749 NULL); 750 751 i915->num_fragment_sampler_views = num; 752 753 i915->dirty |= I915_NEW_SAMPLER_VIEW; 754} 755 756static void 757i915_set_vertex_sampler_views(struct pipe_context *pipe, 758 unsigned num, 759 struct pipe_sampler_view **views) 760{ 761 struct i915_context *i915 = i915_context(pipe); 762 uint i; 763 764 assert(num <= PIPE_MAX_VERTEX_SAMPLERS); 765 766 /* Check for no-op */ 767 if (num == i915->num_vertex_sampler_views && 768 !memcmp(i915->vertex_sampler_views, views, num * sizeof(struct pipe_sampler_view *))) { 769 return; 770 } 771 772 draw_flush(i915->draw); 773 774 for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) { 775 struct pipe_sampler_view *view = i < num ? views[i] : NULL; 776 777 pipe_sampler_view_reference(&i915->vertex_sampler_views[i], view); 778 } 779 780 i915->num_vertex_sampler_views = num; 781 782 draw_set_sampler_views(i915->draw, 783 i915->vertex_sampler_views, 784 i915->num_vertex_sampler_views); 785} 786 787 788static struct pipe_sampler_view * 789i915_create_sampler_view(struct pipe_context *pipe, 790 struct pipe_resource *texture, 791 const struct pipe_sampler_view *templ) 792{ 793 struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view); 794 795 if (view) { 796 *view = *templ; 797 view->reference.count = 1; 798 view->texture = NULL; 799 pipe_resource_reference(&view->texture, texture); 800 view->context = pipe; 801 } 802 803 return view; 804} 805 806 807static void 808i915_sampler_view_destroy(struct pipe_context *pipe, 809 struct pipe_sampler_view *view) 810{ 811 pipe_resource_reference(&view->texture, NULL); 812 FREE(view); 813} 814 815 816static void i915_set_framebuffer_state(struct pipe_context *pipe, 817 const struct pipe_framebuffer_state *fb) 818{ 819 struct i915_context *i915 = i915_context(pipe); 820 int i; 821 822 draw_flush(i915->draw); 823 824 i915->framebuffer.width = fb->width; 825 i915->framebuffer.height = fb->height; 826 i915->framebuffer.nr_cbufs = fb->nr_cbufs; 827 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { 828 pipe_surface_reference(&i915->framebuffer.cbufs[i], 829 i < fb->nr_cbufs ? fb->cbufs[i] : NULL); 830 } 831 pipe_surface_reference(&i915->framebuffer.zsbuf, fb->zsbuf); 832 833 i915->dirty |= I915_NEW_FRAMEBUFFER; 834} 835 836 837 838static void i915_set_clip_state( struct pipe_context *pipe, 839 const struct pipe_clip_state *clip ) 840{ 841 struct i915_context *i915 = i915_context(pipe); 842 draw_flush(i915->draw); 843 844 i915->saved_clip = *clip; 845 846 draw_set_clip_state(i915->draw, clip); 847 848 i915->dirty |= I915_NEW_CLIP; 849} 850 851 852 853/* Called when driver state tracker notices changes to the viewport 854 * matrix: 855 */ 856static void i915_set_viewport_state( struct pipe_context *pipe, 857 const struct pipe_viewport_state *viewport ) 858{ 859 struct i915_context *i915 = i915_context(pipe); 860 861 i915->viewport = *viewport; /* struct copy */ 862 863 /* pass the viewport info to the draw module */ 864 draw_set_viewport_state(i915->draw, &i915->viewport); 865 866 i915->dirty |= I915_NEW_VIEWPORT; 867} 868 869 870static void * 871i915_create_rasterizer_state(struct pipe_context *pipe, 872 const struct pipe_rasterizer_state *rasterizer) 873{ 874 struct i915_rasterizer_state *cso = CALLOC_STRUCT( i915_rasterizer_state ); 875 876 cso->templ = *rasterizer; 877 cso->color_interp = rasterizer->flatshade ? INTERP_CONSTANT : INTERP_LINEAR; 878 cso->light_twoside = rasterizer->light_twoside; 879 cso->ds[0].u = _3DSTATE_DEPTH_OFFSET_SCALE; 880 cso->ds[1].f = rasterizer->offset_scale; 881 if (rasterizer->poly_stipple_enable) { 882 cso->st |= ST1_ENABLE; 883 } 884 885 if (rasterizer->scissor) 886 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT; 887 else 888 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT; 889 890 switch (rasterizer->cull_face) { 891 case PIPE_FACE_NONE: 892 cso->LIS4 |= S4_CULLMODE_NONE; 893 break; 894 case PIPE_FACE_FRONT: 895 if (rasterizer->front_ccw) 896 cso->LIS4 |= S4_CULLMODE_CCW; 897 else 898 cso->LIS4 |= S4_CULLMODE_CW; 899 break; 900 case PIPE_FACE_BACK: 901 if (rasterizer->front_ccw) 902 cso->LIS4 |= S4_CULLMODE_CW; 903 else 904 cso->LIS4 |= S4_CULLMODE_CCW; 905 break; 906 case PIPE_FACE_FRONT_AND_BACK: 907 cso->LIS4 |= S4_CULLMODE_BOTH; 908 break; 909 } 910 911 { 912 int line_width = CLAMP((int)(rasterizer->line_width * 2), 1, 0xf); 913 914 cso->LIS4 |= line_width << S4_LINE_WIDTH_SHIFT; 915 916 if (rasterizer->line_smooth) 917 cso->LIS4 |= S4_LINE_ANTIALIAS_ENABLE; 918 } 919 920 { 921 int point_size = CLAMP((int) rasterizer->point_size, 1, 0xff); 922 923 cso->LIS4 |= point_size << S4_POINT_WIDTH_SHIFT; 924 } 925 926 if (rasterizer->flatshade) { 927 cso->LIS4 |= (S4_FLATSHADE_ALPHA | 928 S4_FLATSHADE_COLOR | 929 S4_FLATSHADE_SPECULAR); 930 } 931 932 cso->LIS7 = fui( rasterizer->offset_units ); 933 934 935 return cso; 936} 937 938static void i915_bind_rasterizer_state( struct pipe_context *pipe, 939 void *raster ) 940{ 941 struct i915_context *i915 = i915_context(pipe); 942 943 i915->rasterizer = (struct i915_rasterizer_state *)raster; 944 945 /* pass-through to draw module */ 946 draw_set_rasterizer_state(i915->draw, 947 (i915->rasterizer ? &(i915->rasterizer->templ) : NULL), 948 raster); 949 950 i915->dirty |= I915_NEW_RASTERIZER; 951} 952 953static void i915_delete_rasterizer_state(struct pipe_context *pipe, 954 void *raster) 955{ 956 FREE(raster); 957} 958 959static void i915_set_vertex_buffers(struct pipe_context *pipe, 960 unsigned count, 961 const struct pipe_vertex_buffer *buffers) 962{ 963 struct i915_context *i915 = i915_context(pipe); 964 struct draw_context *draw = i915->draw; 965 int i; 966 967 util_copy_vertex_buffers(i915->saved_vertex_buffers, 968 &i915->saved_nr_vertex_buffers, 969 buffers, count); 970#if 0 971 /* XXX doesn't look like this is needed */ 972 /* unmap old */ 973 for (i = 0; i < i915->num_vertex_buffers; i++) { 974 draw_set_mapped_vertex_buffer(draw, i, NULL); 975 } 976#endif 977 978 /* pass-through to draw module */ 979 draw_set_vertex_buffers(draw, count, buffers); 980 981 /* map new */ 982 for (i = 0; i < count; i++) { 983 void *buf = i915_buffer(buffers[i].buffer)->data; 984 draw_set_mapped_vertex_buffer(draw, i, buf); 985 } 986} 987 988static void * 989i915_create_vertex_elements_state(struct pipe_context *pipe, 990 unsigned count, 991 const struct pipe_vertex_element *attribs) 992{ 993 struct i915_velems_state *velems; 994 assert(count <= PIPE_MAX_ATTRIBS); 995 velems = (struct i915_velems_state *) MALLOC(sizeof(struct i915_velems_state)); 996 if (velems) { 997 velems->count = count; 998 memcpy(velems->velem, attribs, sizeof(*attribs) * count); 999 } 1000 return velems; 1001} 1002 1003static void 1004i915_bind_vertex_elements_state(struct pipe_context *pipe, 1005 void *velems) 1006{ 1007 struct i915_context *i915 = i915_context(pipe); 1008 struct i915_velems_state *i915_velems = (struct i915_velems_state *) velems; 1009 1010 i915->saved_velems = velems; 1011 1012 /* pass-through to draw module */ 1013 if (i915_velems) { 1014 draw_set_vertex_elements(i915->draw, 1015 i915_velems->count, i915_velems->velem); 1016 } 1017} 1018 1019static void 1020i915_delete_vertex_elements_state(struct pipe_context *pipe, void *velems) 1021{ 1022 FREE( velems ); 1023} 1024 1025static void i915_set_index_buffer(struct pipe_context *pipe, 1026 const struct pipe_index_buffer *ib) 1027{ 1028 struct i915_context *i915 = i915_context(pipe); 1029 1030 if (ib) 1031 memcpy(&i915->index_buffer, ib, sizeof(i915->index_buffer)); 1032 else 1033 memset(&i915->index_buffer, 0, sizeof(i915->index_buffer)); 1034 1035 /* pass-through to draw module */ 1036 draw_set_index_buffer(i915->draw, ib); 1037} 1038 1039static void 1040i915_set_sample_mask(struct pipe_context *pipe, 1041 unsigned sample_mask) 1042{ 1043} 1044 1045void 1046i915_init_state_functions( struct i915_context *i915 ) 1047{ 1048 i915->base.create_blend_state = i915_create_blend_state; 1049 i915->base.bind_blend_state = i915_bind_blend_state; 1050 i915->base.delete_blend_state = i915_delete_blend_state; 1051 1052 i915->base.create_sampler_state = i915_create_sampler_state; 1053 i915->base.bind_fragment_sampler_states = i915_bind_fragment_sampler_states; 1054 i915->base.bind_vertex_sampler_states = i915_bind_vertex_sampler_states; 1055 i915->base.delete_sampler_state = i915_delete_sampler_state; 1056 1057 i915->base.create_depth_stencil_alpha_state = i915_create_depth_stencil_state; 1058 i915->base.bind_depth_stencil_alpha_state = i915_bind_depth_stencil_state; 1059 i915->base.delete_depth_stencil_alpha_state = i915_delete_depth_stencil_state; 1060 1061 i915->base.create_rasterizer_state = i915_create_rasterizer_state; 1062 i915->base.bind_rasterizer_state = i915_bind_rasterizer_state; 1063 i915->base.delete_rasterizer_state = i915_delete_rasterizer_state; 1064 i915->base.create_fs_state = i915_create_fs_state; 1065 i915->base.bind_fs_state = i915_bind_fs_state; 1066 i915->base.delete_fs_state = i915_delete_fs_state; 1067 i915->base.create_vs_state = i915_create_vs_state; 1068 i915->base.bind_vs_state = i915_bind_vs_state; 1069 i915->base.delete_vs_state = i915_delete_vs_state; 1070 i915->base.create_vertex_elements_state = i915_create_vertex_elements_state; 1071 i915->base.bind_vertex_elements_state = i915_bind_vertex_elements_state; 1072 i915->base.delete_vertex_elements_state = i915_delete_vertex_elements_state; 1073 1074 i915->base.set_blend_color = i915_set_blend_color; 1075 i915->base.set_stencil_ref = i915_set_stencil_ref; 1076 i915->base.set_clip_state = i915_set_clip_state; 1077 i915->base.set_sample_mask = i915_set_sample_mask; 1078 i915->base.set_constant_buffer = i915_set_constant_buffer; 1079 i915->base.set_framebuffer_state = i915_set_framebuffer_state; 1080 1081 i915->base.set_polygon_stipple = i915_set_polygon_stipple; 1082 i915->base.set_scissor_state = i915_set_scissor_state; 1083 i915->base.set_fragment_sampler_views = i915_set_fragment_sampler_views; 1084 i915->base.set_vertex_sampler_views = i915_set_vertex_sampler_views; 1085 i915->base.create_sampler_view = i915_create_sampler_view; 1086 i915->base.sampler_view_destroy = i915_sampler_view_destroy; 1087 i915->base.set_viewport_state = i915_set_viewport_state; 1088 i915->base.set_vertex_buffers = i915_set_vertex_buffers; 1089 i915->base.set_index_buffer = i915_set_index_buffer; 1090 i915->base.redefine_user_buffer = u_default_redefine_user_buffer; 1091} 1092 1093void 1094i915_init_fixup_state_functions( struct i915_context *i915 ) 1095{ 1096 i915->saved_bind_fs_state = i915->base.bind_fs_state; 1097 i915->base.bind_fs_state = i915_fixup_bind_fs_state; 1098 i915->saved_bind_sampler_states = i915->base.bind_fragment_sampler_states; 1099 i915->base.bind_fragment_sampler_states = i915_fixup_bind_sampler_states; 1100 i915->saved_set_sampler_views = i915->base.set_fragment_sampler_views; 1101 i915->base.set_fragment_sampler_views = i915_fixup_set_fragment_sampler_views; 1102} 1103