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 (at) 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 */ 49 static unsigned 50 translate_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 68 static 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 81 static 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 */ 99 static void * 100 i915_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 } 175 176 static void i915_bind_blend_state(struct pipe_context *pipe, 177 void *blend) 178 { 179 struct i915_context *i915 = i915_context(pipe); 180 181 if (i915->blend == blend) 182 return; 183 184 i915->blend = (struct i915_blend_state*)blend; 185 186 i915->dirty |= I915_NEW_BLEND; 187 } 188 189 190 static void i915_delete_blend_state(struct pipe_context *pipe, void *blend) 191 { 192 FREE(blend); 193 } 194 195 static void i915_set_blend_color( struct pipe_context *pipe, 196 const struct pipe_blend_color *blend_color ) 197 { 198 struct i915_context *i915 = i915_context(pipe); 199 200 if (!blend_color) 201 return; 202 203 i915->blend_color = *blend_color; 204 205 i915->dirty |= I915_NEW_BLEND; 206 } 207 208 static void i915_set_stencil_ref( struct pipe_context *pipe, 209 const struct pipe_stencil_ref *stencil_ref ) 210 { 211 struct i915_context *i915 = i915_context(pipe); 212 213 i915->stencil_ref = *stencil_ref; 214 215 i915->dirty |= I915_NEW_DEPTH_STENCIL; 216 } 217 218 static void * 219 i915_create_sampler_state(struct pipe_context *pipe, 220 const struct pipe_sampler_state *sampler) 221 { 222 struct i915_sampler_state *cso = CALLOC_STRUCT( i915_sampler_state ); 223 const unsigned ws = sampler->wrap_s; 224 const unsigned wt = sampler->wrap_t; 225 const unsigned wr = sampler->wrap_r; 226 unsigned minFilt, magFilt; 227 unsigned mipFilt; 228 229 cso->templ = *sampler; 230 231 mipFilt = translate_mip_filter(sampler->min_mip_filter); 232 minFilt = translate_img_filter( sampler->min_img_filter ); 233 magFilt = translate_img_filter( sampler->mag_img_filter ); 234 235 if (sampler->max_anisotropy > 1) 236 minFilt = magFilt = FILTER_ANISOTROPIC; 237 238 if (sampler->max_anisotropy > 2) { 239 cso->state[0] |= SS2_MAX_ANISO_4; 240 } 241 242 { 243 int b = (int) (sampler->lod_bias * 16.0); 244 b = CLAMP(b, -256, 255); 245 cso->state[0] |= ((b << SS2_LOD_BIAS_SHIFT) & SS2_LOD_BIAS_MASK); 246 } 247 248 /* Shadow: 249 */ 250 if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) 251 { 252 cso->state[0] |= (SS2_SHADOW_ENABLE | 253 i915_translate_shadow_compare_func(sampler->compare_func)); 254 255 minFilt = FILTER_4X4_FLAT; 256 magFilt = FILTER_4X4_FLAT; 257 } 258 259 cso->state[0] |= ((minFilt << SS2_MIN_FILTER_SHIFT) | 260 (mipFilt << SS2_MIP_FILTER_SHIFT) | 261 (magFilt << SS2_MAG_FILTER_SHIFT)); 262 263 cso->state[1] |= 264 ((translate_wrap_mode(ws) << SS3_TCX_ADDR_MODE_SHIFT) | 265 (translate_wrap_mode(wt) << SS3_TCY_ADDR_MODE_SHIFT) | 266 (translate_wrap_mode(wr) << SS3_TCZ_ADDR_MODE_SHIFT)); 267 268 if (sampler->normalized_coords) 269 cso->state[1] |= SS3_NORMALIZED_COORDS; 270 271 { 272 int minlod = (int) (16.0 * sampler->min_lod); 273 int maxlod = (int) (16.0 * sampler->max_lod); 274 minlod = CLAMP(minlod, 0, 16 * 11); 275 maxlod = CLAMP(maxlod, 0, 16 * 11); 276 277 if (minlod > maxlod) 278 maxlod = minlod; 279 280 cso->minlod = minlod; 281 cso->maxlod = maxlod; 282 } 283 284 { 285 ubyte r = float_to_ubyte(sampler->border_color.f[0]); 286 ubyte g = float_to_ubyte(sampler->border_color.f[1]); 287 ubyte b = float_to_ubyte(sampler->border_color.f[2]); 288 ubyte a = float_to_ubyte(sampler->border_color.f[3]); 289 cso->state[2] = I915PACKCOLOR8888(r, g, b, a); 290 } 291 return cso; 292 } 293 294 static void i915_fixup_bind_sampler_states(struct pipe_context *pipe, 295 unsigned num, void **sampler) 296 { 297 struct i915_context *i915 = i915_context(pipe); 298 299 i915->saved_nr_samplers = num; 300 memcpy(&i915->saved_samplers, sampler, sizeof(void *) * num); 301 302 i915->saved_bind_sampler_states(pipe, num, sampler); 303 } 304 305 static void 306 i915_bind_vertex_sampler_states(struct pipe_context *pipe, 307 unsigned num_samplers, 308 void **samplers) 309 { 310 struct i915_context *i915 = i915_context(pipe); 311 unsigned i; 312 313 assert(num_samplers <= Elements(i915->vertex_samplers)); 314 315 /* Check for no-op */ 316 if (num_samplers == i915->num_vertex_samplers && 317 !memcmp(i915->vertex_samplers, samplers, num_samplers * sizeof(void *))) 318 return; 319 320 for (i = 0; i < num_samplers; ++i) 321 i915->vertex_samplers[i] = samplers[i]; 322 for (i = num_samplers; i < Elements(i915->vertex_samplers); ++i) 323 i915->vertex_samplers[i] = NULL; 324 325 i915->num_vertex_samplers = num_samplers; 326 327 draw_set_samplers(i915->draw, 328 PIPE_SHADER_VERTEX, 329 i915->vertex_samplers, 330 i915->num_vertex_samplers); 331 } 332 333 334 335 static void i915_bind_fragment_sampler_states(struct pipe_context *pipe, 336 unsigned num, void **sampler) 337 { 338 struct i915_context *i915 = i915_context(pipe); 339 unsigned i; 340 341 /* Check for no-op */ 342 if (num == i915->num_samplers && 343 !memcmp(i915->sampler, sampler, num * sizeof(void *))) 344 return; 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 } 355 356 static 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 */ 366 void 367 i915_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_SAMPLERS); 378 if (!num) 379 return; 380 381 for (i = 0; i < PIPE_MAX_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 PIPE_SHADER_VERTEX, 410 i, 411 tex->width0, tex->height0, tex->depth0, 412 view->u.tex.first_level, tex->last_level, 413 row_stride, img_stride, data); 414 } else 415 i915->mapped_vs_tex[i] = NULL; 416 } 417 } 418 419 void 420 i915_cleanup_vertex_sampling(struct i915_context *i915) 421 { 422 struct i915_winsys *iws = i915->iws; 423 unsigned i; 424 for (i = 0; i < Elements(i915->mapped_vs_tex); i++) { 425 if (i915->mapped_vs_tex_buffer[i]) { 426 iws->buffer_unmap(iws, i915->mapped_vs_tex_buffer[i]); 427 pipe_resource_reference(&i915->mapped_vs_tex[i], NULL); 428 } 429 } 430 } 431 432 433 434 /** XXX move someday? Or consolidate all these simple state setters 435 * into one file. 436 */ 437 438 static void * 439 i915_create_depth_stencil_state(struct pipe_context *pipe, 440 const struct pipe_depth_stencil_alpha_state *depth_stencil) 441 { 442 struct i915_depth_stencil_state *cso = CALLOC_STRUCT( i915_depth_stencil_state ); 443 444 { 445 int testmask = depth_stencil->stencil[0].valuemask & 0xff; 446 int writemask = depth_stencil->stencil[0].writemask & 0xff; 447 448 cso->stencil_modes4 |= (_3DSTATE_MODES_4_CMD | 449 ENABLE_STENCIL_TEST_MASK | 450 STENCIL_TEST_MASK(testmask) | 451 ENABLE_STENCIL_WRITE_MASK | 452 STENCIL_WRITE_MASK(writemask)); 453 } 454 455 if (depth_stencil->stencil[0].enabled) { 456 int test = i915_translate_compare_func(depth_stencil->stencil[0].func); 457 int fop = i915_translate_stencil_op(depth_stencil->stencil[0].fail_op); 458 int dfop = i915_translate_stencil_op(depth_stencil->stencil[0].zfail_op); 459 int dpop = i915_translate_stencil_op(depth_stencil->stencil[0].zpass_op); 460 461 cso->stencil_LIS5 |= (S5_STENCIL_TEST_ENABLE | 462 S5_STENCIL_WRITE_ENABLE | 463 (test << S5_STENCIL_TEST_FUNC_SHIFT) | 464 (fop << S5_STENCIL_FAIL_SHIFT) | 465 (dfop << S5_STENCIL_PASS_Z_FAIL_SHIFT) | 466 (dpop << S5_STENCIL_PASS_Z_PASS_SHIFT)); 467 } 468 469 if (depth_stencil->stencil[1].enabled) { 470 int test = i915_translate_compare_func(depth_stencil->stencil[1].func); 471 int fop = i915_translate_stencil_op(depth_stencil->stencil[1].fail_op); 472 int dfop = i915_translate_stencil_op(depth_stencil->stencil[1].zfail_op); 473 int dpop = i915_translate_stencil_op(depth_stencil->stencil[1].zpass_op); 474 int tmask = depth_stencil->stencil[1].valuemask & 0xff; 475 int wmask = depth_stencil->stencil[1].writemask & 0xff; 476 477 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 478 BFO_ENABLE_STENCIL_FUNCS | 479 BFO_ENABLE_STENCIL_TWO_SIDE | 480 BFO_ENABLE_STENCIL_REF | 481 BFO_STENCIL_TWO_SIDE | 482 (test << BFO_STENCIL_TEST_SHIFT) | 483 (fop << BFO_STENCIL_FAIL_SHIFT) | 484 (dfop << BFO_STENCIL_PASS_Z_FAIL_SHIFT) | 485 (dpop << BFO_STENCIL_PASS_Z_PASS_SHIFT)); 486 487 cso->bfo[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS | 488 BFM_ENABLE_STENCIL_TEST_MASK | 489 BFM_ENABLE_STENCIL_WRITE_MASK | 490 (tmask << BFM_STENCIL_TEST_MASK_SHIFT) | 491 (wmask << BFM_STENCIL_WRITE_MASK_SHIFT)); 492 } 493 else { 494 /* This actually disables two-side stencil: The bit set is a 495 * modify-enable bit to indicate we are changing the two-side 496 * setting. Then there is a symbolic zero to show that we are 497 * setting the flag to zero/off. 498 */ 499 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 500 BFO_ENABLE_STENCIL_TWO_SIDE | 501 0); 502 cso->bfo[1] = 0; 503 } 504 505 if (depth_stencil->depth.enabled) { 506 int func = i915_translate_compare_func(depth_stencil->depth.func); 507 508 cso->depth_LIS6 |= (S6_DEPTH_TEST_ENABLE | 509 (func << S6_DEPTH_TEST_FUNC_SHIFT)); 510 511 if (depth_stencil->depth.writemask) 512 cso->depth_LIS6 |= S6_DEPTH_WRITE_ENABLE; 513 } 514 515 if (depth_stencil->alpha.enabled) { 516 int test = i915_translate_compare_func(depth_stencil->alpha.func); 517 ubyte refByte = float_to_ubyte(depth_stencil->alpha.ref_value); 518 519 cso->depth_LIS6 |= (S6_ALPHA_TEST_ENABLE | 520 (test << S6_ALPHA_TEST_FUNC_SHIFT) | 521 (((unsigned) refByte) << S6_ALPHA_REF_SHIFT)); 522 } 523 524 return cso; 525 } 526 527 static void i915_bind_depth_stencil_state(struct pipe_context *pipe, 528 void *depth_stencil) 529 { 530 struct i915_context *i915 = i915_context(pipe); 531 532 if (i915->depth_stencil == depth_stencil) 533 return; 534 535 i915->depth_stencil = (const struct i915_depth_stencil_state *)depth_stencil; 536 537 i915->dirty |= I915_NEW_DEPTH_STENCIL; 538 } 539 540 static void i915_delete_depth_stencil_state(struct pipe_context *pipe, 541 void *depth_stencil) 542 { 543 FREE(depth_stencil); 544 } 545 546 547 static void i915_set_scissor_state( struct pipe_context *pipe, 548 const struct pipe_scissor_state *scissor ) 549 { 550 struct i915_context *i915 = i915_context(pipe); 551 552 memcpy( &i915->scissor, scissor, sizeof(*scissor) ); 553 i915->dirty |= I915_NEW_SCISSOR; 554 } 555 556 557 static void i915_set_polygon_stipple( struct pipe_context *pipe, 558 const struct pipe_poly_stipple *stipple ) 559 { 560 } 561 562 563 564 static void * 565 i915_create_fs_state(struct pipe_context *pipe, 566 const struct pipe_shader_state *templ) 567 { 568 struct i915_context *i915 = i915_context(pipe); 569 struct i915_fragment_shader *ifs = CALLOC_STRUCT(i915_fragment_shader); 570 if (!ifs) 571 return NULL; 572 573 ifs->draw_data = draw_create_fragment_shader(i915->draw, templ); 574 ifs->state.tokens = tgsi_dup_tokens(templ->tokens); 575 576 tgsi_scan_shader(templ->tokens, &ifs->info); 577 578 /* The shader's compiled to i915 instructions here */ 579 i915_translate_fragment_program(i915, ifs); 580 581 return ifs; 582 } 583 584 static void 585 i915_fixup_bind_fs_state(struct pipe_context *pipe, void *shader) 586 { 587 struct i915_context *i915 = i915_context(pipe); 588 589 if (i915->saved_fs == shader) 590 return; 591 592 i915->saved_fs = shader; 593 594 i915->saved_bind_fs_state(pipe, shader); 595 } 596 597 static void 598 i915_bind_fs_state(struct pipe_context *pipe, void *shader) 599 { 600 struct i915_context *i915 = i915_context(pipe); 601 602 if (i915->fs == shader) 603 return; 604 605 i915->fs = (struct i915_fragment_shader*) shader; 606 607 draw_bind_fragment_shader(i915->draw, (i915->fs ? i915->fs->draw_data : NULL)); 608 609 i915->dirty |= I915_NEW_FS; 610 } 611 612 static 613 void i915_delete_fs_state(struct pipe_context *pipe, void *shader) 614 { 615 struct i915_fragment_shader *ifs = (struct i915_fragment_shader *) shader; 616 617 if (ifs->decl) { 618 FREE(ifs->decl); 619 ifs->decl = NULL; 620 } 621 622 if (ifs->program) { 623 FREE(ifs->program); 624 ifs->program = NULL; 625 FREE((struct tgsi_token *)ifs->state.tokens); 626 ifs->state.tokens = NULL; 627 } 628 ifs->program_len = 0; 629 ifs->decl_len = 0; 630 631 FREE(ifs); 632 } 633 634 635 static void * 636 i915_create_vs_state(struct pipe_context *pipe, 637 const struct pipe_shader_state *templ) 638 { 639 struct i915_context *i915 = i915_context(pipe); 640 641 /* just pass-through to draw module */ 642 return draw_create_vertex_shader(i915->draw, templ); 643 } 644 645 static void i915_bind_vs_state(struct pipe_context *pipe, void *shader) 646 { 647 struct i915_context *i915 = i915_context(pipe); 648 649 if (i915->saved_vs == shader) 650 return; 651 652 i915->saved_vs = shader; 653 654 /* just pass-through to draw module */ 655 draw_bind_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 656 657 i915->dirty |= I915_NEW_VS; 658 } 659 660 static void i915_delete_vs_state(struct pipe_context *pipe, void *shader) 661 { 662 struct i915_context *i915 = i915_context(pipe); 663 664 /* just pass-through to draw module */ 665 draw_delete_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 666 } 667 668 static void i915_set_constant_buffer(struct pipe_context *pipe, 669 uint shader, uint index, 670 struct pipe_constant_buffer *cb) 671 { 672 struct i915_context *i915 = i915_context(pipe); 673 struct pipe_resource *buf = cb ? cb->buffer : NULL; 674 unsigned new_num = 0; 675 boolean diff = TRUE; 676 677 /* XXX don't support geom shaders now */ 678 if (shader == PIPE_SHADER_GEOMETRY) 679 return; 680 681 if (cb && cb->user_buffer) { 682 buf = i915_user_buffer_create(pipe->screen, (void *) cb->user_buffer, 683 cb->buffer_size, 684 PIPE_BIND_CONSTANT_BUFFER); 685 } 686 687 /* if we have a new buffer compare it with the old one */ 688 if (buf) { 689 struct i915_buffer *ibuf = i915_buffer(buf); 690 struct pipe_resource *old_buf = i915->constants[shader]; 691 struct i915_buffer *old = old_buf ? i915_buffer(old_buf) : NULL; 692 unsigned old_num = i915->current.num_user_constants[shader]; 693 694 new_num = ibuf->b.b.width0 / 4 * sizeof(float); 695 696 if (old_num == new_num) { 697 if (old_num == 0) 698 diff = FALSE; 699 #if 0 700 /* XXX no point in running this code since st/mesa only uses user buffers */ 701 /* Can't compare the buffer data since they are userbuffers */ 702 else if (old && old->free_on_destroy) 703 diff = memcmp(old->data, ibuf->data, ibuf->b.b.width0); 704 #else 705 (void)old; 706 #endif 707 } 708 } else { 709 diff = i915->current.num_user_constants[shader] != 0; 710 } 711 712 pipe_resource_reference(&i915->constants[shader], buf); 713 i915->current.num_user_constants[shader] = new_num; 714 715 if (diff) 716 i915->dirty |= shader == PIPE_SHADER_VERTEX ? I915_NEW_VS_CONSTANTS : I915_NEW_FS_CONSTANTS; 717 718 if (cb && cb->user_buffer) { 719 pipe_resource_reference(&buf, NULL); 720 } 721 } 722 723 724 static void 725 i915_fixup_set_fragment_sampler_views(struct pipe_context *pipe, 726 unsigned num, 727 struct pipe_sampler_view **views) 728 { 729 struct i915_context *i915 = i915_context(pipe); 730 int i; 731 732 for (i = 0; i < num; i++) 733 pipe_sampler_view_reference(&i915->saved_sampler_views[i], 734 views[i]); 735 736 for (i = num; i < i915->saved_nr_sampler_views; i++) 737 pipe_sampler_view_reference(&i915->saved_sampler_views[i], 738 NULL); 739 740 i915->saved_nr_sampler_views = num; 741 742 i915->saved_set_sampler_views(pipe, num, views); 743 } 744 745 static void i915_set_fragment_sampler_views(struct pipe_context *pipe, 746 unsigned num, 747 struct pipe_sampler_view **views) 748 { 749 struct i915_context *i915 = i915_context(pipe); 750 uint i; 751 752 assert(num <= PIPE_MAX_SAMPLERS); 753 754 /* Check for no-op */ 755 if (num == i915->num_fragment_sampler_views && 756 !memcmp(i915->fragment_sampler_views, views, num * sizeof(struct pipe_sampler_view *))) 757 return; 758 759 for (i = 0; i < num; i++) 760 pipe_sampler_view_reference(&i915->fragment_sampler_views[i], 761 views[i]); 762 763 for (i = num; i < i915->num_fragment_sampler_views; i++) 764 pipe_sampler_view_reference(&i915->fragment_sampler_views[i], 765 NULL); 766 767 i915->num_fragment_sampler_views = num; 768 769 i915->dirty |= I915_NEW_SAMPLER_VIEW; 770 } 771 772 static void 773 i915_set_vertex_sampler_views(struct pipe_context *pipe, 774 unsigned num, 775 struct pipe_sampler_view **views) 776 { 777 struct i915_context *i915 = i915_context(pipe); 778 uint i; 779 780 assert(num <= Elements(i915->vertex_sampler_views)); 781 782 /* Check for no-op */ 783 if (num == i915->num_vertex_sampler_views && 784 !memcmp(i915->vertex_sampler_views, views, num * sizeof(struct pipe_sampler_view *))) { 785 return; 786 } 787 788 for (i = 0; i < Elements(i915->vertex_sampler_views); i++) { 789 struct pipe_sampler_view *view = i < num ? views[i] : NULL; 790 791 pipe_sampler_view_reference(&i915->vertex_sampler_views[i], view); 792 } 793 794 i915->num_vertex_sampler_views = num; 795 796 draw_set_sampler_views(i915->draw, 797 PIPE_SHADER_VERTEX, 798 i915->vertex_sampler_views, 799 i915->num_vertex_sampler_views); 800 } 801 802 803 static struct pipe_sampler_view * 804 i915_create_sampler_view(struct pipe_context *pipe, 805 struct pipe_resource *texture, 806 const struct pipe_sampler_view *templ) 807 { 808 struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view); 809 810 if (view) { 811 *view = *templ; 812 view->reference.count = 1; 813 view->texture = NULL; 814 pipe_resource_reference(&view->texture, texture); 815 view->context = pipe; 816 } 817 818 return view; 819 } 820 821 822 static void 823 i915_sampler_view_destroy(struct pipe_context *pipe, 824 struct pipe_sampler_view *view) 825 { 826 pipe_resource_reference(&view->texture, NULL); 827 FREE(view); 828 } 829 830 831 static void i915_set_framebuffer_state(struct pipe_context *pipe, 832 const struct pipe_framebuffer_state *fb) 833 { 834 struct i915_context *i915 = i915_context(pipe); 835 int i; 836 837 i915->framebuffer.width = fb->width; 838 i915->framebuffer.height = fb->height; 839 i915->framebuffer.nr_cbufs = fb->nr_cbufs; 840 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { 841 pipe_surface_reference(&i915->framebuffer.cbufs[i], 842 i < fb->nr_cbufs ? fb->cbufs[i] : NULL); 843 } 844 pipe_surface_reference(&i915->framebuffer.zsbuf, fb->zsbuf); 845 846 i915->dirty |= I915_NEW_FRAMEBUFFER; 847 } 848 849 850 851 static void i915_set_clip_state( struct pipe_context *pipe, 852 const struct pipe_clip_state *clip ) 853 { 854 struct i915_context *i915 = i915_context(pipe); 855 856 i915->saved_clip = *clip; 857 858 draw_set_clip_state(i915->draw, clip); 859 860 i915->dirty |= I915_NEW_CLIP; 861 } 862 863 864 865 /* Called when driver state tracker notices changes to the viewport 866 * matrix: 867 */ 868 static void i915_set_viewport_state( struct pipe_context *pipe, 869 const struct pipe_viewport_state *viewport ) 870 { 871 struct i915_context *i915 = i915_context(pipe); 872 873 i915->viewport = *viewport; /* struct copy */ 874 875 /* pass the viewport info to the draw module */ 876 draw_set_viewport_state(i915->draw, &i915->viewport); 877 878 i915->dirty |= I915_NEW_VIEWPORT; 879 } 880 881 882 static void * 883 i915_create_rasterizer_state(struct pipe_context *pipe, 884 const struct pipe_rasterizer_state *rasterizer) 885 { 886 struct i915_rasterizer_state *cso = CALLOC_STRUCT( i915_rasterizer_state ); 887 888 cso->templ = *rasterizer; 889 cso->color_interp = rasterizer->flatshade ? INTERP_CONSTANT : INTERP_LINEAR; 890 cso->light_twoside = rasterizer->light_twoside; 891 cso->ds[0].u = _3DSTATE_DEPTH_OFFSET_SCALE; 892 cso->ds[1].f = rasterizer->offset_scale; 893 if (rasterizer->poly_stipple_enable) { 894 cso->st |= ST1_ENABLE; 895 } 896 897 if (rasterizer->scissor) 898 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT; 899 else 900 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT; 901 902 switch (rasterizer->cull_face) { 903 case PIPE_FACE_NONE: 904 cso->LIS4 |= S4_CULLMODE_NONE; 905 break; 906 case PIPE_FACE_FRONT: 907 if (rasterizer->front_ccw) 908 cso->LIS4 |= S4_CULLMODE_CCW; 909 else 910 cso->LIS4 |= S4_CULLMODE_CW; 911 break; 912 case PIPE_FACE_BACK: 913 if (rasterizer->front_ccw) 914 cso->LIS4 |= S4_CULLMODE_CW; 915 else 916 cso->LIS4 |= S4_CULLMODE_CCW; 917 break; 918 case PIPE_FACE_FRONT_AND_BACK: 919 cso->LIS4 |= S4_CULLMODE_BOTH; 920 break; 921 } 922 923 { 924 int line_width = CLAMP((int)(rasterizer->line_width * 2), 1, 0xf); 925 926 cso->LIS4 |= line_width << S4_LINE_WIDTH_SHIFT; 927 928 if (rasterizer->line_smooth) 929 cso->LIS4 |= S4_LINE_ANTIALIAS_ENABLE; 930 } 931 932 { 933 int point_size = CLAMP((int) rasterizer->point_size, 1, 0xff); 934 935 cso->LIS4 |= point_size << S4_POINT_WIDTH_SHIFT; 936 } 937 938 if (rasterizer->flatshade) { 939 cso->LIS4 |= (S4_FLATSHADE_ALPHA | 940 S4_FLATSHADE_COLOR | 941 S4_FLATSHADE_SPECULAR); 942 } 943 944 cso->LIS7 = fui( rasterizer->offset_units ); 945 946 947 return cso; 948 } 949 950 static void i915_bind_rasterizer_state( struct pipe_context *pipe, 951 void *raster ) 952 { 953 struct i915_context *i915 = i915_context(pipe); 954 955 if (i915->rasterizer == raster) 956 return; 957 958 i915->rasterizer = (struct i915_rasterizer_state *)raster; 959 960 /* pass-through to draw module */ 961 draw_set_rasterizer_state(i915->draw, 962 (i915->rasterizer ? &(i915->rasterizer->templ) : NULL), 963 raster); 964 965 i915->dirty |= I915_NEW_RASTERIZER; 966 } 967 968 static void i915_delete_rasterizer_state(struct pipe_context *pipe, 969 void *raster) 970 { 971 FREE(raster); 972 } 973 974 static void i915_set_vertex_buffers(struct pipe_context *pipe, 975 unsigned count, 976 const struct pipe_vertex_buffer *buffers) 977 { 978 struct i915_context *i915 = i915_context(pipe); 979 struct draw_context *draw = i915->draw; 980 int i; 981 982 util_copy_vertex_buffers(i915->saved_vertex_buffers, 983 &i915->saved_nr_vertex_buffers, 984 buffers, count); 985 #if 0 986 /* XXX doesn't look like this is needed */ 987 /* unmap old */ 988 for (i = 0; i < i915->num_vertex_buffers; i++) { 989 draw_set_mapped_vertex_buffer(draw, i, NULL); 990 } 991 #endif 992 993 /* pass-through to draw module */ 994 draw_set_vertex_buffers(draw, count, buffers); 995 996 /* map new */ 997 for (i = 0; i < count; i++) { 998 const void *buf = buffers[i].user_buffer; 999 if (!buf) 1000 buf = i915_buffer(buffers[i].buffer)->data; 1001 draw_set_mapped_vertex_buffer(draw, i, buf); 1002 } 1003 } 1004 1005 static void * 1006 i915_create_vertex_elements_state(struct pipe_context *pipe, 1007 unsigned count, 1008 const struct pipe_vertex_element *attribs) 1009 { 1010 struct i915_velems_state *velems; 1011 assert(count <= PIPE_MAX_ATTRIBS); 1012 velems = (struct i915_velems_state *) MALLOC(sizeof(struct i915_velems_state)); 1013 if (velems) { 1014 velems->count = count; 1015 memcpy(velems->velem, attribs, sizeof(*attribs) * count); 1016 } 1017 return velems; 1018 } 1019 1020 static void 1021 i915_bind_vertex_elements_state(struct pipe_context *pipe, 1022 void *velems) 1023 { 1024 struct i915_context *i915 = i915_context(pipe); 1025 struct i915_velems_state *i915_velems = (struct i915_velems_state *) velems; 1026 1027 if (i915->saved_velems == velems) 1028 return; 1029 1030 i915->saved_velems = velems; 1031 1032 /* pass-through to draw module */ 1033 if (i915_velems) { 1034 draw_set_vertex_elements(i915->draw, 1035 i915_velems->count, i915_velems->velem); 1036 } 1037 } 1038 1039 static void 1040 i915_delete_vertex_elements_state(struct pipe_context *pipe, void *velems) 1041 { 1042 FREE( velems ); 1043 } 1044 1045 static void i915_set_index_buffer(struct pipe_context *pipe, 1046 const struct pipe_index_buffer *ib) 1047 { 1048 struct i915_context *i915 = i915_context(pipe); 1049 1050 if (ib) 1051 memcpy(&i915->index_buffer, ib, sizeof(i915->index_buffer)); 1052 else 1053 memset(&i915->index_buffer, 0, sizeof(i915->index_buffer)); 1054 } 1055 1056 static void 1057 i915_set_sample_mask(struct pipe_context *pipe, 1058 unsigned sample_mask) 1059 { 1060 } 1061 1062 void 1063 i915_init_state_functions( struct i915_context *i915 ) 1064 { 1065 i915->base.create_blend_state = i915_create_blend_state; 1066 i915->base.bind_blend_state = i915_bind_blend_state; 1067 i915->base.delete_blend_state = i915_delete_blend_state; 1068 1069 i915->base.create_sampler_state = i915_create_sampler_state; 1070 i915->base.bind_fragment_sampler_states = i915_bind_fragment_sampler_states; 1071 i915->base.bind_vertex_sampler_states = i915_bind_vertex_sampler_states; 1072 i915->base.delete_sampler_state = i915_delete_sampler_state; 1073 1074 i915->base.create_depth_stencil_alpha_state = i915_create_depth_stencil_state; 1075 i915->base.bind_depth_stencil_alpha_state = i915_bind_depth_stencil_state; 1076 i915->base.delete_depth_stencil_alpha_state = i915_delete_depth_stencil_state; 1077 1078 i915->base.create_rasterizer_state = i915_create_rasterizer_state; 1079 i915->base.bind_rasterizer_state = i915_bind_rasterizer_state; 1080 i915->base.delete_rasterizer_state = i915_delete_rasterizer_state; 1081 i915->base.create_fs_state = i915_create_fs_state; 1082 i915->base.bind_fs_state = i915_bind_fs_state; 1083 i915->base.delete_fs_state = i915_delete_fs_state; 1084 i915->base.create_vs_state = i915_create_vs_state; 1085 i915->base.bind_vs_state = i915_bind_vs_state; 1086 i915->base.delete_vs_state = i915_delete_vs_state; 1087 i915->base.create_vertex_elements_state = i915_create_vertex_elements_state; 1088 i915->base.bind_vertex_elements_state = i915_bind_vertex_elements_state; 1089 i915->base.delete_vertex_elements_state = i915_delete_vertex_elements_state; 1090 1091 i915->base.set_blend_color = i915_set_blend_color; 1092 i915->base.set_stencil_ref = i915_set_stencil_ref; 1093 i915->base.set_clip_state = i915_set_clip_state; 1094 i915->base.set_sample_mask = i915_set_sample_mask; 1095 i915->base.set_constant_buffer = i915_set_constant_buffer; 1096 i915->base.set_framebuffer_state = i915_set_framebuffer_state; 1097 1098 i915->base.set_polygon_stipple = i915_set_polygon_stipple; 1099 i915->base.set_scissor_state = i915_set_scissor_state; 1100 i915->base.set_fragment_sampler_views = i915_set_fragment_sampler_views; 1101 i915->base.set_vertex_sampler_views = i915_set_vertex_sampler_views; 1102 i915->base.create_sampler_view = i915_create_sampler_view; 1103 i915->base.sampler_view_destroy = i915_sampler_view_destroy; 1104 i915->base.set_viewport_state = i915_set_viewport_state; 1105 i915->base.set_vertex_buffers = i915_set_vertex_buffers; 1106 i915->base.set_index_buffer = i915_set_index_buffer; 1107 } 1108 1109 void 1110 i915_init_fixup_state_functions( struct i915_context *i915 ) 1111 { 1112 i915->saved_bind_fs_state = i915->base.bind_fs_state; 1113 i915->base.bind_fs_state = i915_fixup_bind_fs_state; 1114 i915->saved_bind_sampler_states = i915->base.bind_fragment_sampler_states; 1115 i915->base.bind_fragment_sampler_states = i915_fixup_bind_sampler_states; 1116 i915->saved_set_sampler_views = i915->base.set_fragment_sampler_views; 1117 i915->base.set_fragment_sampler_views = i915_fixup_set_fragment_sampler_views; 1118 } 1119
