i915_state.c revision 9b346f83a7b672e913a7bb6a089d5dbd7fbdce06
1/************************************************************************** 2 * 3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28/* Authors: Keith Whitwell <keith@tungstengraphics.com> 29 */ 30 31 32#include "draw/draw_context.h" 33#include "pipe/p_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 * 204i915_create_sampler_state(struct pipe_context *pipe, 205 const struct pipe_sampler_state *sampler) 206{ 207 struct i915_sampler_state *cso = CALLOC_STRUCT( i915_sampler_state ); 208 const unsigned ws = sampler->wrap_s; 209 const unsigned wt = sampler->wrap_t; 210 const unsigned wr = sampler->wrap_r; 211 unsigned minFilt, magFilt; 212 unsigned mipFilt; 213 214 cso->templ = sampler; 215 216 mipFilt = translate_mip_filter(sampler->min_mip_filter); 217 minFilt = translate_img_filter( sampler->min_img_filter ); 218 magFilt = translate_img_filter( sampler->mag_img_filter ); 219 220 if (sampler->max_anisotropy > 1.0) 221 minFilt = magFilt = FILTER_ANISOTROPIC; 222 223 if (sampler->max_anisotropy > 2.0) { 224 cso->state[0] |= SS2_MAX_ANISO_4; 225 } 226 227 { 228 int b = (int) (sampler->lod_bias * 16.0); 229 b = CLAMP(b, -256, 255); 230 cso->state[0] |= ((b << SS2_LOD_BIAS_SHIFT) & SS2_LOD_BIAS_MASK); 231 } 232 233 /* Shadow: 234 */ 235 if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) 236 { 237 cso->state[0] |= (SS2_SHADOW_ENABLE | 238 i915_translate_compare_func(sampler->compare_func)); 239 240 minFilt = FILTER_4X4_FLAT; 241 magFilt = FILTER_4X4_FLAT; 242 } 243 244 cso->state[0] |= ((minFilt << SS2_MIN_FILTER_SHIFT) | 245 (mipFilt << SS2_MIP_FILTER_SHIFT) | 246 (magFilt << SS2_MAG_FILTER_SHIFT)); 247 248 cso->state[1] |= 249 ((translate_wrap_mode(ws) << SS3_TCX_ADDR_MODE_SHIFT) | 250 (translate_wrap_mode(wt) << SS3_TCY_ADDR_MODE_SHIFT) | 251 (translate_wrap_mode(wr) << SS3_TCZ_ADDR_MODE_SHIFT)); 252 253 if (sampler->normalized_coords) 254 cso->state[1] |= SS3_NORMALIZED_COORDS; 255 256 { 257 int minlod = (int) (16.0 * sampler->min_lod); 258 int maxlod = (int) (16.0 * sampler->max_lod); 259 minlod = CLAMP(minlod, 0, 16 * 11); 260 maxlod = CLAMP(maxlod, 0, 16 * 11); 261 262 if (minlod > maxlod) 263 maxlod = minlod; 264 265 cso->minlod = minlod; 266 cso->maxlod = maxlod; 267 } 268 269 { 270 ubyte r = float_to_ubyte(sampler->border_color[0]); 271 ubyte g = float_to_ubyte(sampler->border_color[1]); 272 ubyte b = float_to_ubyte(sampler->border_color[2]); 273 ubyte a = float_to_ubyte(sampler->border_color[3]); 274 cso->state[2] = I915PACKCOLOR8888(r, g, b, a); 275 } 276 return cso; 277} 278 279static void i915_bind_sampler_states(struct pipe_context *pipe, 280 unsigned num, void **sampler) 281{ 282 struct i915_context *i915 = i915_context(pipe); 283 unsigned i; 284 285 assert(num <= PIPE_MAX_SAMPLERS); 286 287 /* Check for no-op */ 288 if (num == i915->num_samplers && 289 !memcmp(i915->sampler, sampler, num * sizeof(void *))) 290 return; 291 292 draw_flush(i915->draw); 293 294 for (i = 0; i < num; ++i) 295 i915->sampler[i] = sampler[i]; 296 for (i = num; i < PIPE_MAX_SAMPLERS; ++i) 297 i915->sampler[i] = NULL; 298 299 i915->num_samplers = num; 300 301 i915->dirty |= I915_NEW_SAMPLER; 302} 303 304static void i915_delete_sampler_state(struct pipe_context *pipe, 305 void *sampler) 306{ 307 FREE(sampler); 308} 309 310 311/** XXX move someday? Or consolidate all these simple state setters 312 * into one file. 313 */ 314 315static void * 316i915_create_depth_stencil_state(struct pipe_context *pipe, 317 const struct pipe_depth_stencil_alpha_state *depth_stencil) 318{ 319 struct i915_depth_stencil_state *cso = CALLOC_STRUCT( i915_depth_stencil_state ); 320 321 { 322 int testmask = depth_stencil->stencil[0].valuemask & 0xff; 323 int writemask = depth_stencil->stencil[0].writemask & 0xff; 324 325 cso->stencil_modes4 |= (_3DSTATE_MODES_4_CMD | 326 ENABLE_STENCIL_TEST_MASK | 327 STENCIL_TEST_MASK(testmask) | 328 ENABLE_STENCIL_WRITE_MASK | 329 STENCIL_WRITE_MASK(writemask)); 330 } 331 332 if (depth_stencil->stencil[0].enabled) { 333 int test = i915_translate_compare_func(depth_stencil->stencil[0].func); 334 int fop = i915_translate_stencil_op(depth_stencil->stencil[0].fail_op); 335 int dfop = i915_translate_stencil_op(depth_stencil->stencil[0].zfail_op); 336 int dpop = i915_translate_stencil_op(depth_stencil->stencil[0].zpass_op); 337 int ref = depth_stencil->stencil[0].ref_value & 0xff; 338 339 cso->stencil_LIS5 |= (S5_STENCIL_TEST_ENABLE | 340 S5_STENCIL_WRITE_ENABLE | 341 (ref << S5_STENCIL_REF_SHIFT) | 342 (test << S5_STENCIL_TEST_FUNC_SHIFT) | 343 (fop << S5_STENCIL_FAIL_SHIFT) | 344 (dfop << S5_STENCIL_PASS_Z_FAIL_SHIFT) | 345 (dpop << S5_STENCIL_PASS_Z_PASS_SHIFT)); 346 } 347 348 if (depth_stencil->stencil[1].enabled) { 349 int test = i915_translate_compare_func(depth_stencil->stencil[1].func); 350 int fop = i915_translate_stencil_op(depth_stencil->stencil[1].fail_op); 351 int dfop = i915_translate_stencil_op(depth_stencil->stencil[1].zfail_op); 352 int dpop = i915_translate_stencil_op(depth_stencil->stencil[1].zpass_op); 353 int ref = depth_stencil->stencil[1].ref_value & 0xff; 354 int tmask = depth_stencil->stencil[1].valuemask & 0xff; 355 int wmask = depth_stencil->stencil[1].writemask & 0xff; 356 357 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 358 BFO_ENABLE_STENCIL_FUNCS | 359 BFO_ENABLE_STENCIL_TWO_SIDE | 360 BFO_ENABLE_STENCIL_REF | 361 BFO_STENCIL_TWO_SIDE | 362 (ref << BFO_STENCIL_REF_SHIFT) | 363 (test << BFO_STENCIL_TEST_SHIFT) | 364 (fop << BFO_STENCIL_FAIL_SHIFT) | 365 (dfop << BFO_STENCIL_PASS_Z_FAIL_SHIFT) | 366 (dpop << BFO_STENCIL_PASS_Z_PASS_SHIFT)); 367 368 cso->bfo[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS | 369 BFM_ENABLE_STENCIL_TEST_MASK | 370 BFM_ENABLE_STENCIL_WRITE_MASK | 371 (tmask << BFM_STENCIL_TEST_MASK_SHIFT) | 372 (wmask << BFM_STENCIL_WRITE_MASK_SHIFT)); 373 } 374 else { 375 /* This actually disables two-side stencil: The bit set is a 376 * modify-enable bit to indicate we are changing the two-side 377 * setting. Then there is a symbolic zero to show that we are 378 * setting the flag to zero/off. 379 */ 380 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 381 BFO_ENABLE_STENCIL_TWO_SIDE | 382 0); 383 cso->bfo[1] = 0; 384 } 385 386 if (depth_stencil->depth.enabled) { 387 int func = i915_translate_compare_func(depth_stencil->depth.func); 388 389 cso->depth_LIS6 |= (S6_DEPTH_TEST_ENABLE | 390 (func << S6_DEPTH_TEST_FUNC_SHIFT)); 391 392 if (depth_stencil->depth.writemask) 393 cso->depth_LIS6 |= S6_DEPTH_WRITE_ENABLE; 394 } 395 396 if (depth_stencil->alpha.enabled) { 397 int test = i915_translate_compare_func(depth_stencil->alpha.func); 398 ubyte refByte = float_to_ubyte(depth_stencil->alpha.ref_value); 399 400 cso->depth_LIS6 |= (S6_ALPHA_TEST_ENABLE | 401 (test << S6_ALPHA_TEST_FUNC_SHIFT) | 402 (((unsigned) refByte) << S6_ALPHA_REF_SHIFT)); 403 } 404 405 return cso; 406} 407 408static void i915_bind_depth_stencil_state(struct pipe_context *pipe, 409 void *depth_stencil) 410{ 411 struct i915_context *i915 = i915_context(pipe); 412 draw_flush(i915->draw); 413 414 i915->depth_stencil = (const struct i915_depth_stencil_state *)depth_stencil; 415 416 i915->dirty |= I915_NEW_DEPTH_STENCIL; 417} 418 419static void i915_delete_depth_stencil_state(struct pipe_context *pipe, 420 void *depth_stencil) 421{ 422 FREE(depth_stencil); 423} 424 425 426static void i915_set_scissor_state( struct pipe_context *pipe, 427 const struct pipe_scissor_state *scissor ) 428{ 429 struct i915_context *i915 = i915_context(pipe); 430 draw_flush(i915->draw); 431 432 memcpy( &i915->scissor, scissor, sizeof(*scissor) ); 433 i915->dirty |= I915_NEW_SCISSOR; 434} 435 436 437static void i915_set_polygon_stipple( struct pipe_context *pipe, 438 const struct pipe_poly_stipple *stipple ) 439{ 440} 441 442 443 444static void * 445i915_create_fs_state(struct pipe_context *pipe, 446 const struct pipe_shader_state *templ) 447{ 448 struct i915_context *i915 = i915_context(pipe); 449 struct i915_fragment_shader *ifs = CALLOC_STRUCT(i915_fragment_shader); 450 if (!ifs) 451 return NULL; 452 453 ifs->state.tokens = tgsi_dup_tokens(templ->tokens); 454 455 tgsi_scan_shader(templ->tokens, &ifs->info); 456 457 /* The shader's compiled to i915 instructions here */ 458 i915_translate_fragment_program(i915, ifs); 459 460 return ifs; 461} 462 463static void 464i915_bind_fs_state(struct pipe_context *pipe, void *shader) 465{ 466 struct i915_context *i915 = i915_context(pipe); 467 draw_flush(i915->draw); 468 469 i915->fs = (struct i915_fragment_shader*) shader; 470 471 i915->dirty |= I915_NEW_FS; 472} 473 474static 475void i915_delete_fs_state(struct pipe_context *pipe, void *shader) 476{ 477 struct i915_fragment_shader *ifs = (struct i915_fragment_shader *) shader; 478 479 if (ifs->program) 480 FREE(ifs->program); 481 ifs->program_len = 0; 482 483 FREE((struct tgsi_token *)ifs->state.tokens); 484 485 FREE(ifs); 486} 487 488 489static void * 490i915_create_vs_state(struct pipe_context *pipe, 491 const struct pipe_shader_state *templ) 492{ 493 struct i915_context *i915 = i915_context(pipe); 494 495 /* just pass-through to draw module */ 496 return draw_create_vertex_shader(i915->draw, templ); 497} 498 499static void i915_bind_vs_state(struct pipe_context *pipe, void *shader) 500{ 501 struct i915_context *i915 = i915_context(pipe); 502 503 /* just pass-through to draw module */ 504 draw_bind_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 505 506 i915->dirty |= I915_NEW_VS; 507} 508 509static void i915_delete_vs_state(struct pipe_context *pipe, void *shader) 510{ 511 struct i915_context *i915 = i915_context(pipe); 512 513 /* just pass-through to draw module */ 514 draw_delete_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 515} 516 517static void i915_set_constant_buffer(struct pipe_context *pipe, 518 uint shader, uint index, 519 struct pipe_buffer *buf) 520{ 521 struct i915_context *i915 = i915_context(pipe); 522 struct pipe_screen *screen = pipe->screen; 523 draw_flush(i915->draw); 524 525 assert(shader < PIPE_SHADER_TYPES); 526 assert(index == 0); 527 528 /* Make a copy of shader constants. 529 * During fragment program translation we may add additional 530 * constants to the array. 531 * 532 * We want to consider the situation where some user constants 533 * (ex: a material color) may change frequently but the shader program 534 * stays the same. In that case we should only be updating the first 535 * N constants, leaving any extras from shader translation alone. 536 */ 537 if (buf) { 538 void *mapped; 539 if (buf->size && 540 (mapped = pipe_buffer_map(screen, buf, 541 PIPE_BUFFER_USAGE_CPU_READ))) { 542 memcpy(i915->current.constants[shader], mapped, buf->size); 543 pipe_buffer_unmap(screen, buf); 544 i915->current.num_user_constants[shader] 545 = buf->size / (4 * sizeof(float)); 546 } 547 else { 548 i915->current.num_user_constants[shader] = 0; 549 } 550 } 551 552 i915->dirty |= I915_NEW_CONSTANTS; 553} 554 555 556static void i915_set_sampler_textures(struct pipe_context *pipe, 557 unsigned num, 558 struct pipe_texture **texture) 559{ 560 struct i915_context *i915 = i915_context(pipe); 561 uint i; 562 563 assert(num <= PIPE_MAX_SAMPLERS); 564 565 /* Check for no-op */ 566 if (num == i915->num_textures && 567 !memcmp(i915->texture, texture, num * sizeof(struct pipe_texture *))) 568 return; 569 570 /* Fixes wrong texture in texobj with VBUF */ 571 draw_flush(i915->draw); 572 573 for (i = 0; i < num; i++) 574 pipe_texture_reference((struct pipe_texture **) &i915->texture[i], 575 texture[i]); 576 577 for (i = num; i < i915->num_textures; i++) 578 pipe_texture_reference((struct pipe_texture **) &i915->texture[i], 579 NULL); 580 581 i915->num_textures = num; 582 583 i915->dirty |= I915_NEW_TEXTURE; 584} 585 586 587 588static void i915_set_framebuffer_state(struct pipe_context *pipe, 589 const struct pipe_framebuffer_state *fb) 590{ 591 struct i915_context *i915 = i915_context(pipe); 592 int i; 593 594 draw_flush(i915->draw); 595 596 i915->framebuffer.width = fb->width; 597 i915->framebuffer.height = fb->height; 598 i915->framebuffer.nr_cbufs = fb->nr_cbufs; 599 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { 600 pipe_surface_reference(&i915->framebuffer.cbufs[i], fb->cbufs[i]); 601 } 602 pipe_surface_reference(&i915->framebuffer.zsbuf, fb->zsbuf); 603 604 i915->dirty |= I915_NEW_FRAMEBUFFER; 605} 606 607 608 609static void i915_set_clip_state( struct pipe_context *pipe, 610 const struct pipe_clip_state *clip ) 611{ 612 struct i915_context *i915 = i915_context(pipe); 613 draw_flush(i915->draw); 614 615 draw_set_clip_state(i915->draw, clip); 616 617 i915->dirty |= I915_NEW_CLIP; 618} 619 620 621 622/* Called when driver state tracker notices changes to the viewport 623 * matrix: 624 */ 625static void i915_set_viewport_state( struct pipe_context *pipe, 626 const struct pipe_viewport_state *viewport ) 627{ 628 struct i915_context *i915 = i915_context(pipe); 629 630 i915->viewport = *viewport; /* struct copy */ 631 632 /* pass the viewport info to the draw module */ 633 draw_set_viewport_state(i915->draw, &i915->viewport); 634 635 i915->dirty |= I915_NEW_VIEWPORT; 636} 637 638 639static void * 640i915_create_rasterizer_state(struct pipe_context *pipe, 641 const struct pipe_rasterizer_state *rasterizer) 642{ 643 struct i915_rasterizer_state *cso = CALLOC_STRUCT( i915_rasterizer_state ); 644 645 cso->templ = rasterizer; 646 cso->color_interp = rasterizer->flatshade ? INTERP_CONSTANT : INTERP_LINEAR; 647 cso->light_twoside = rasterizer->light_twoside; 648 cso->ds[0].u = _3DSTATE_DEPTH_OFFSET_SCALE; 649 cso->ds[1].f = rasterizer->offset_scale; 650 if (rasterizer->poly_stipple_enable) { 651 cso->st |= ST1_ENABLE; 652 } 653 654 if (rasterizer->scissor) 655 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT; 656 else 657 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT; 658 659 switch (rasterizer->cull_mode) { 660 case PIPE_WINDING_NONE: 661 cso->LIS4 |= S4_CULLMODE_NONE; 662 break; 663 case PIPE_WINDING_CW: 664 cso->LIS4 |= S4_CULLMODE_CW; 665 break; 666 case PIPE_WINDING_CCW: 667 cso->LIS4 |= S4_CULLMODE_CCW; 668 break; 669 case PIPE_WINDING_BOTH: 670 cso->LIS4 |= S4_CULLMODE_BOTH; 671 break; 672 } 673 674 { 675 int line_width = CLAMP((int)(rasterizer->line_width * 2), 1, 0xf); 676 677 cso->LIS4 |= line_width << S4_LINE_WIDTH_SHIFT; 678 679 if (rasterizer->line_smooth) 680 cso->LIS4 |= S4_LINE_ANTIALIAS_ENABLE; 681 } 682 683 { 684 int point_size = CLAMP((int) rasterizer->point_size, 1, 0xff); 685 686 cso->LIS4 |= point_size << S4_POINT_WIDTH_SHIFT; 687 } 688 689 if (rasterizer->flatshade) { 690 cso->LIS4 |= (S4_FLATSHADE_ALPHA | 691 S4_FLATSHADE_COLOR | 692 S4_FLATSHADE_SPECULAR); 693 } 694 695 cso->LIS7 = fui( rasterizer->offset_units ); 696 697 698 return cso; 699} 700 701static void i915_bind_rasterizer_state( struct pipe_context *pipe, 702 void *raster ) 703{ 704 struct i915_context *i915 = i915_context(pipe); 705 706 i915->rasterizer = (struct i915_rasterizer_state *)raster; 707 708 /* pass-through to draw module */ 709 draw_set_rasterizer_state(i915->draw, 710 (i915->rasterizer ? i915->rasterizer->templ : NULL)); 711 712 i915->dirty |= I915_NEW_RASTERIZER; 713} 714 715static void i915_delete_rasterizer_state(struct pipe_context *pipe, 716 void *raster) 717{ 718 FREE(raster); 719} 720 721static void i915_set_vertex_buffers(struct pipe_context *pipe, 722 unsigned count, 723 const struct pipe_vertex_buffer *buffers) 724{ 725 struct i915_context *i915 = i915_context(pipe); 726 /* Because we change state before the draw_set_vertex_buffers call 727 * we need a flush here, just to be sure. 728 */ 729 draw_flush(i915->draw); 730 731 memcpy(i915->vertex_buffer, buffers, count * sizeof(buffers[0])); 732 i915->num_vertex_buffers = count; 733 734 /* pass-through to draw module */ 735 draw_set_vertex_buffers(i915->draw, count, buffers); 736} 737 738static void i915_set_vertex_elements(struct pipe_context *pipe, 739 unsigned count, 740 const struct pipe_vertex_element *elements) 741{ 742 struct i915_context *i915 = i915_context(pipe); 743 /* Because we change state before the draw_set_vertex_buffers call 744 * we need a flush here, just to be sure. 745 */ 746 draw_flush(i915->draw); 747 748 i915->num_vertex_elements = count; 749 /* pass-through to draw module */ 750 draw_set_vertex_elements(i915->draw, count, elements); 751} 752 753 754void 755i915_init_state_functions( struct i915_context *i915 ) 756{ 757 i915->base.create_blend_state = i915_create_blend_state; 758 i915->base.bind_blend_state = i915_bind_blend_state; 759 i915->base.delete_blend_state = i915_delete_blend_state; 760 761 i915->base.create_sampler_state = i915_create_sampler_state; 762 i915->base.bind_fragment_sampler_states = i915_bind_sampler_states; 763 i915->base.delete_sampler_state = i915_delete_sampler_state; 764 765 i915->base.create_depth_stencil_alpha_state = i915_create_depth_stencil_state; 766 i915->base.bind_depth_stencil_alpha_state = i915_bind_depth_stencil_state; 767 i915->base.delete_depth_stencil_alpha_state = i915_delete_depth_stencil_state; 768 769 i915->base.create_rasterizer_state = i915_create_rasterizer_state; 770 i915->base.bind_rasterizer_state = i915_bind_rasterizer_state; 771 i915->base.delete_rasterizer_state = i915_delete_rasterizer_state; 772 i915->base.create_fs_state = i915_create_fs_state; 773 i915->base.bind_fs_state = i915_bind_fs_state; 774 i915->base.delete_fs_state = i915_delete_fs_state; 775 i915->base.create_vs_state = i915_create_vs_state; 776 i915->base.bind_vs_state = i915_bind_vs_state; 777 i915->base.delete_vs_state = i915_delete_vs_state; 778 779 i915->base.set_blend_color = i915_set_blend_color; 780 i915->base.set_clip_state = i915_set_clip_state; 781 i915->base.set_constant_buffer = i915_set_constant_buffer; 782 i915->base.set_framebuffer_state = i915_set_framebuffer_state; 783 784 i915->base.set_polygon_stipple = i915_set_polygon_stipple; 785 i915->base.set_scissor_state = i915_set_scissor_state; 786 i915->base.set_fragment_sampler_textures = i915_set_sampler_textures; 787 i915->base.set_viewport_state = i915_set_viewport_state; 788 i915->base.set_vertex_buffers = i915_set_vertex_buffers; 789 i915->base.set_vertex_elements = i915_set_vertex_elements; 790} 791