i915_state.c revision 4a49301e
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 case PIPE_TEX_FILTER_ANISO: 76 return FILTER_ANISOTROPIC; 77 default: 78 assert(0); 79 return FILTER_NEAREST; 80 } 81} 82 83static unsigned translate_mip_filter( unsigned filter ) 84{ 85 switch (filter) { 86 case PIPE_TEX_MIPFILTER_NONE: 87 return MIPFILTER_NONE; 88 case PIPE_TEX_MIPFILTER_NEAREST: 89 return MIPFILTER_NEAREST; 90 case PIPE_TEX_MIPFILTER_LINEAR: 91 return MIPFILTER_LINEAR; 92 default: 93 assert(0); 94 return MIPFILTER_NONE; 95 } 96} 97 98 99/* None of this state is actually used for anything yet. 100 */ 101static void * 102i915_create_blend_state(struct pipe_context *pipe, 103 const struct pipe_blend_state *blend) 104{ 105 struct i915_blend_state *cso_data = CALLOC_STRUCT( i915_blend_state ); 106 107 { 108 unsigned eqRGB = blend->rgb_func; 109 unsigned srcRGB = blend->rgb_src_factor; 110 unsigned dstRGB = blend->rgb_dst_factor; 111 112 unsigned eqA = blend->alpha_func; 113 unsigned srcA = blend->alpha_src_factor; 114 unsigned dstA = blend->alpha_dst_factor; 115 116 /* Special handling for MIN/MAX filter modes handled at 117 * state_tracker level. 118 */ 119 120 if (srcA != srcRGB || 121 dstA != dstRGB || 122 eqA != eqRGB) { 123 124 cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | 125 IAB_MODIFY_ENABLE | 126 IAB_ENABLE | 127 IAB_MODIFY_FUNC | 128 IAB_MODIFY_SRC_FACTOR | 129 IAB_MODIFY_DST_FACTOR | 130 SRC_ABLND_FACT(i915_translate_blend_factor(srcA)) | 131 DST_ABLND_FACT(i915_translate_blend_factor(dstA)) | 132 (i915_translate_blend_func(eqA) << IAB_FUNC_SHIFT)); 133 } 134 else { 135 cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | 136 IAB_MODIFY_ENABLE | 137 0); 138 } 139 } 140 141 cso_data->modes4 |= (_3DSTATE_MODES_4_CMD | 142 ENABLE_LOGIC_OP_FUNC | 143 LOGIC_OP_FUNC(i915_translate_logic_op(blend->logicop_func))); 144 145 if (blend->logicop_enable) 146 cso_data->LIS5 |= S5_LOGICOP_ENABLE; 147 148 if (blend->dither) 149 cso_data->LIS5 |= S5_COLOR_DITHER_ENABLE; 150 151 if ((blend->colormask & PIPE_MASK_R) == 0) 152 cso_data->LIS5 |= S5_WRITEDISABLE_RED; 153 154 if ((blend->colormask & PIPE_MASK_G) == 0) 155 cso_data->LIS5 |= S5_WRITEDISABLE_GREEN; 156 157 if ((blend->colormask & PIPE_MASK_B) == 0) 158 cso_data->LIS5 |= S5_WRITEDISABLE_BLUE; 159 160 if ((blend->colormask & PIPE_MASK_A) == 0) 161 cso_data->LIS5 |= S5_WRITEDISABLE_ALPHA; 162 163 if (blend->blend_enable) { 164 unsigned funcRGB = blend->rgb_func; 165 unsigned srcRGB = blend->rgb_src_factor; 166 unsigned dstRGB = blend->rgb_dst_factor; 167 168 cso_data->LIS6 |= (S6_CBUF_BLEND_ENABLE | 169 SRC_BLND_FACT(i915_translate_blend_factor(srcRGB)) | 170 DST_BLND_FACT(i915_translate_blend_factor(dstRGB)) | 171 (i915_translate_blend_func(funcRGB) << S6_CBUF_BLEND_FUNC_SHIFT)); 172 } 173 174 return cso_data; 175} 176 177static void i915_bind_blend_state(struct pipe_context *pipe, 178 void *blend) 179{ 180 struct i915_context *i915 = i915_context(pipe); 181 draw_flush(i915->draw); 182 183 i915->blend = (struct i915_blend_state*)blend; 184 185 i915->dirty |= I915_NEW_BLEND; 186} 187 188 189static void i915_delete_blend_state(struct pipe_context *pipe, void *blend) 190{ 191 FREE(blend); 192} 193 194static void i915_set_blend_color( struct pipe_context *pipe, 195 const struct pipe_blend_color *blend_color ) 196{ 197 struct i915_context *i915 = i915_context(pipe); 198 draw_flush(i915->draw); 199 200 i915->blend_color = *blend_color; 201 202 i915->dirty |= I915_NEW_BLEND; 203} 204 205static void * 206i915_create_sampler_state(struct pipe_context *pipe, 207 const struct pipe_sampler_state *sampler) 208{ 209 struct i915_sampler_state *cso = CALLOC_STRUCT( i915_sampler_state ); 210 const unsigned ws = sampler->wrap_s; 211 const unsigned wt = sampler->wrap_t; 212 const unsigned wr = sampler->wrap_r; 213 unsigned minFilt, magFilt; 214 unsigned mipFilt; 215 216 cso->templ = sampler; 217 218 mipFilt = translate_mip_filter(sampler->min_mip_filter); 219 minFilt = translate_img_filter( sampler->min_img_filter ); 220 magFilt = translate_img_filter( sampler->mag_img_filter ); 221 222 if (sampler->max_anisotropy > 2.0) { 223 cso->state[0] |= SS2_MAX_ANISO_4; 224 } 225 226 { 227 int b = (int) (sampler->lod_bias * 16.0); 228 b = CLAMP(b, -256, 255); 229 cso->state[0] |= ((b << SS2_LOD_BIAS_SHIFT) & SS2_LOD_BIAS_MASK); 230 } 231 232 /* Shadow: 233 */ 234 if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) 235 { 236 cso->state[0] |= (SS2_SHADOW_ENABLE | 237 i915_translate_compare_func(sampler->compare_func)); 238 239 minFilt = FILTER_4X4_FLAT; 240 magFilt = FILTER_4X4_FLAT; 241 } 242 243 cso->state[0] |= ((minFilt << SS2_MIN_FILTER_SHIFT) | 244 (mipFilt << SS2_MIP_FILTER_SHIFT) | 245 (magFilt << SS2_MAG_FILTER_SHIFT)); 246 247 cso->state[1] |= 248 ((translate_wrap_mode(ws) << SS3_TCX_ADDR_MODE_SHIFT) | 249 (translate_wrap_mode(wt) << SS3_TCY_ADDR_MODE_SHIFT) | 250 (translate_wrap_mode(wr) << SS3_TCZ_ADDR_MODE_SHIFT)); 251 252 if (sampler->normalized_coords) 253 cso->state[1] |= SS3_NORMALIZED_COORDS; 254 255 { 256 int minlod = (int) (16.0 * sampler->min_lod); 257 int maxlod = (int) (16.0 * sampler->max_lod); 258 minlod = CLAMP(minlod, 0, 16 * 11); 259 maxlod = CLAMP(maxlod, 0, 16 * 11); 260 261 if (minlod > maxlod) 262 maxlod = minlod; 263 264 cso->minlod = minlod; 265 cso->maxlod = maxlod; 266 } 267 268 { 269 ubyte r = float_to_ubyte(sampler->border_color[0]); 270 ubyte g = float_to_ubyte(sampler->border_color[1]); 271 ubyte b = float_to_ubyte(sampler->border_color[2]); 272 ubyte a = float_to_ubyte(sampler->border_color[3]); 273 cso->state[2] = I915PACKCOLOR8888(r, g, b, a); 274 } 275 return cso; 276} 277 278static void i915_bind_sampler_states(struct pipe_context *pipe, 279 unsigned num, void **sampler) 280{ 281 struct i915_context *i915 = i915_context(pipe); 282 unsigned i; 283 284 assert(num <= PIPE_MAX_SAMPLERS); 285 286 /* Check for no-op */ 287 if (num == i915->num_samplers && 288 !memcmp(i915->sampler, sampler, num * sizeof(void *))) 289 return; 290 291 draw_flush(i915->draw); 292 293 for (i = 0; i < num; ++i) 294 i915->sampler[i] = sampler[i]; 295 for (i = num; i < PIPE_MAX_SAMPLERS; ++i) 296 i915->sampler[i] = NULL; 297 298 i915->num_samplers = num; 299 300 i915->dirty |= I915_NEW_SAMPLER; 301} 302 303static void i915_delete_sampler_state(struct pipe_context *pipe, 304 void *sampler) 305{ 306 FREE(sampler); 307} 308 309 310/** XXX move someday? Or consolidate all these simple state setters 311 * into one file. 312 */ 313 314static void * 315i915_create_depth_stencil_state(struct pipe_context *pipe, 316 const struct pipe_depth_stencil_alpha_state *depth_stencil) 317{ 318 struct i915_depth_stencil_state *cso = CALLOC_STRUCT( i915_depth_stencil_state ); 319 320 { 321 int testmask = depth_stencil->stencil[0].valuemask & 0xff; 322 int writemask = depth_stencil->stencil[0].writemask & 0xff; 323 324 cso->stencil_modes4 |= (_3DSTATE_MODES_4_CMD | 325 ENABLE_STENCIL_TEST_MASK | 326 STENCIL_TEST_MASK(testmask) | 327 ENABLE_STENCIL_WRITE_MASK | 328 STENCIL_WRITE_MASK(writemask)); 329 } 330 331 if (depth_stencil->stencil[0].enabled) { 332 int test = i915_translate_compare_func(depth_stencil->stencil[0].func); 333 int fop = i915_translate_stencil_op(depth_stencil->stencil[0].fail_op); 334 int dfop = i915_translate_stencil_op(depth_stencil->stencil[0].zfail_op); 335 int dpop = i915_translate_stencil_op(depth_stencil->stencil[0].zpass_op); 336 int ref = depth_stencil->stencil[0].ref_value & 0xff; 337 338 cso->stencil_LIS5 |= (S5_STENCIL_TEST_ENABLE | 339 S5_STENCIL_WRITE_ENABLE | 340 (ref << S5_STENCIL_REF_SHIFT) | 341 (test << S5_STENCIL_TEST_FUNC_SHIFT) | 342 (fop << S5_STENCIL_FAIL_SHIFT) | 343 (dfop << S5_STENCIL_PASS_Z_FAIL_SHIFT) | 344 (dpop << S5_STENCIL_PASS_Z_PASS_SHIFT)); 345 } 346 347 if (depth_stencil->stencil[1].enabled) { 348 int test = i915_translate_compare_func(depth_stencil->stencil[1].func); 349 int fop = i915_translate_stencil_op(depth_stencil->stencil[1].fail_op); 350 int dfop = i915_translate_stencil_op(depth_stencil->stencil[1].zfail_op); 351 int dpop = i915_translate_stencil_op(depth_stencil->stencil[1].zpass_op); 352 int ref = depth_stencil->stencil[1].ref_value & 0xff; 353 int tmask = depth_stencil->stencil[1].valuemask & 0xff; 354 int wmask = depth_stencil->stencil[1].writemask & 0xff; 355 356 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 357 BFO_ENABLE_STENCIL_FUNCS | 358 BFO_ENABLE_STENCIL_TWO_SIDE | 359 BFO_ENABLE_STENCIL_REF | 360 BFO_STENCIL_TWO_SIDE | 361 (ref << BFO_STENCIL_REF_SHIFT) | 362 (test << BFO_STENCIL_TEST_SHIFT) | 363 (fop << BFO_STENCIL_FAIL_SHIFT) | 364 (dfop << BFO_STENCIL_PASS_Z_FAIL_SHIFT) | 365 (dpop << BFO_STENCIL_PASS_Z_PASS_SHIFT)); 366 367 cso->bfo[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS | 368 BFM_ENABLE_STENCIL_TEST_MASK | 369 BFM_ENABLE_STENCIL_WRITE_MASK | 370 (tmask << BFM_STENCIL_TEST_MASK_SHIFT) | 371 (wmask << BFM_STENCIL_WRITE_MASK_SHIFT)); 372 } 373 else { 374 /* This actually disables two-side stencil: The bit set is a 375 * modify-enable bit to indicate we are changing the two-side 376 * setting. Then there is a symbolic zero to show that we are 377 * setting the flag to zero/off. 378 */ 379 cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | 380 BFO_ENABLE_STENCIL_TWO_SIDE | 381 0); 382 cso->bfo[1] = 0; 383 } 384 385 if (depth_stencil->depth.enabled) { 386 int func = i915_translate_compare_func(depth_stencil->depth.func); 387 388 cso->depth_LIS6 |= (S6_DEPTH_TEST_ENABLE | 389 (func << S6_DEPTH_TEST_FUNC_SHIFT)); 390 391 if (depth_stencil->depth.writemask) 392 cso->depth_LIS6 |= S6_DEPTH_WRITE_ENABLE; 393 } 394 395 if (depth_stencil->alpha.enabled) { 396 int test = i915_translate_compare_func(depth_stencil->alpha.func); 397 ubyte refByte = float_to_ubyte(depth_stencil->alpha.ref_value); 398 399 cso->depth_LIS6 |= (S6_ALPHA_TEST_ENABLE | 400 (test << S6_ALPHA_TEST_FUNC_SHIFT) | 401 (((unsigned) refByte) << S6_ALPHA_REF_SHIFT)); 402 } 403 404 return cso; 405} 406 407static void i915_bind_depth_stencil_state(struct pipe_context *pipe, 408 void *depth_stencil) 409{ 410 struct i915_context *i915 = i915_context(pipe); 411 draw_flush(i915->draw); 412 413 i915->depth_stencil = (const struct i915_depth_stencil_state *)depth_stencil; 414 415 i915->dirty |= I915_NEW_DEPTH_STENCIL; 416} 417 418static void i915_delete_depth_stencil_state(struct pipe_context *pipe, 419 void *depth_stencil) 420{ 421 FREE(depth_stencil); 422} 423 424 425static void i915_set_scissor_state( struct pipe_context *pipe, 426 const struct pipe_scissor_state *scissor ) 427{ 428 struct i915_context *i915 = i915_context(pipe); 429 draw_flush(i915->draw); 430 431 memcpy( &i915->scissor, scissor, sizeof(*scissor) ); 432 i915->dirty |= I915_NEW_SCISSOR; 433} 434 435 436static void i915_set_polygon_stipple( struct pipe_context *pipe, 437 const struct pipe_poly_stipple *stipple ) 438{ 439} 440 441 442 443static void * 444i915_create_fs_state(struct pipe_context *pipe, 445 const struct pipe_shader_state *templ) 446{ 447 struct i915_context *i915 = i915_context(pipe); 448 struct i915_fragment_shader *ifs = CALLOC_STRUCT(i915_fragment_shader); 449 if (!ifs) 450 return NULL; 451 452 ifs->state.tokens = tgsi_dup_tokens(templ->tokens); 453 454 tgsi_scan_shader(templ->tokens, &ifs->info); 455 456 /* The shader's compiled to i915 instructions here */ 457 i915_translate_fragment_program(i915, ifs); 458 459 return ifs; 460} 461 462static void 463i915_bind_fs_state(struct pipe_context *pipe, void *shader) 464{ 465 struct i915_context *i915 = i915_context(pipe); 466 draw_flush(i915->draw); 467 468 i915->fs = (struct i915_fragment_shader*) shader; 469 470 i915->dirty |= I915_NEW_FS; 471} 472 473static 474void i915_delete_fs_state(struct pipe_context *pipe, void *shader) 475{ 476 struct i915_fragment_shader *ifs = (struct i915_fragment_shader *) shader; 477 478 if (ifs->program) 479 FREE(ifs->program); 480 ifs->program_len = 0; 481 482 FREE((struct tgsi_token *)ifs->state.tokens); 483 484 FREE(ifs); 485} 486 487 488static void * 489i915_create_vs_state(struct pipe_context *pipe, 490 const struct pipe_shader_state *templ) 491{ 492 struct i915_context *i915 = i915_context(pipe); 493 494 /* just pass-through to draw module */ 495 return draw_create_vertex_shader(i915->draw, templ); 496} 497 498static void i915_bind_vs_state(struct pipe_context *pipe, void *shader) 499{ 500 struct i915_context *i915 = i915_context(pipe); 501 502 /* just pass-through to draw module */ 503 draw_bind_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 504 505 i915->dirty |= I915_NEW_VS; 506} 507 508static void i915_delete_vs_state(struct pipe_context *pipe, void *shader) 509{ 510 struct i915_context *i915 = i915_context(pipe); 511 512 /* just pass-through to draw module */ 513 draw_delete_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); 514} 515 516static void i915_set_constant_buffer(struct pipe_context *pipe, 517 uint shader, uint index, 518 const struct pipe_constant_buffer *buf) 519{ 520 struct i915_context *i915 = i915_context(pipe); 521 struct pipe_screen *screen = pipe->screen; 522 draw_flush(i915->draw); 523 524 assert(shader < PIPE_SHADER_TYPES); 525 assert(index == 0); 526 527 /* Make a copy of shader constants. 528 * During fragment program translation we may add additional 529 * constants to the array. 530 * 531 * We want to consider the situation where some user constants 532 * (ex: a material color) may change frequently but the shader program 533 * stays the same. In that case we should only be updating the first 534 * N constants, leaving any extras from shader translation alone. 535 */ 536 if (buf) { 537 void *mapped; 538 if (buf->buffer && buf->buffer->size && 539 (mapped = pipe_buffer_map(screen, buf->buffer, 540 PIPE_BUFFER_USAGE_CPU_READ))) { 541 memcpy(i915->current.constants[shader], mapped, buf->buffer->size); 542 pipe_buffer_unmap(screen, buf->buffer); 543 i915->current.num_user_constants[shader] 544 = buf->buffer->size / (4 * sizeof(float)); 545 } 546 else { 547 i915->current.num_user_constants[shader] = 0; 548 } 549 } 550 551 i915->dirty |= I915_NEW_CONSTANTS; 552} 553 554 555static void i915_set_sampler_textures(struct pipe_context *pipe, 556 unsigned num, 557 struct pipe_texture **texture) 558{ 559 struct i915_context *i915 = i915_context(pipe); 560 uint i; 561 562 assert(num <= PIPE_MAX_SAMPLERS); 563 564 /* Check for no-op */ 565 if (num == i915->num_textures && 566 !memcmp(i915->texture, texture, num * sizeof(struct pipe_texture *))) 567 return; 568 569 /* Fixes wrong texture in texobj with VBUF */ 570 draw_flush(i915->draw); 571 572 for (i = 0; i < num; i++) 573 pipe_texture_reference((struct pipe_texture **) &i915->texture[i], 574 texture[i]); 575 576 for (i = num; i < i915->num_textures; i++) 577 pipe_texture_reference((struct pipe_texture **) &i915->texture[i], 578 NULL); 579 580 i915->num_textures = num; 581 582 i915->dirty |= I915_NEW_TEXTURE; 583} 584 585 586 587static void i915_set_framebuffer_state(struct pipe_context *pipe, 588 const struct pipe_framebuffer_state *fb) 589{ 590 struct i915_context *i915 = i915_context(pipe); 591 int i; 592 593 draw_flush(i915->draw); 594 595 i915->framebuffer.width = fb->width; 596 i915->framebuffer.height = fb->height; 597 i915->framebuffer.nr_cbufs = fb->nr_cbufs; 598 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { 599 pipe_surface_reference(&i915->framebuffer.cbufs[i], fb->cbufs[i]); 600 } 601 pipe_surface_reference(&i915->framebuffer.zsbuf, fb->zsbuf); 602 603 i915->dirty |= I915_NEW_FRAMEBUFFER; 604} 605 606 607 608static void i915_set_clip_state( struct pipe_context *pipe, 609 const struct pipe_clip_state *clip ) 610{ 611 struct i915_context *i915 = i915_context(pipe); 612 draw_flush(i915->draw); 613 614 draw_set_clip_state(i915->draw, clip); 615 616 i915->dirty |= I915_NEW_CLIP; 617} 618 619 620 621/* Called when driver state tracker notices changes to the viewport 622 * matrix: 623 */ 624static void i915_set_viewport_state( struct pipe_context *pipe, 625 const struct pipe_viewport_state *viewport ) 626{ 627 struct i915_context *i915 = i915_context(pipe); 628 629 i915->viewport = *viewport; /* struct copy */ 630 631 /* pass the viewport info to the draw module */ 632 draw_set_viewport_state(i915->draw, &i915->viewport); 633 634 i915->dirty |= I915_NEW_VIEWPORT; 635} 636 637 638static void * 639i915_create_rasterizer_state(struct pipe_context *pipe, 640 const struct pipe_rasterizer_state *rasterizer) 641{ 642 struct i915_rasterizer_state *cso = CALLOC_STRUCT( i915_rasterizer_state ); 643 644 cso->templ = rasterizer; 645 cso->color_interp = rasterizer->flatshade ? INTERP_CONSTANT : INTERP_LINEAR; 646 cso->light_twoside = rasterizer->light_twoside; 647 cso->ds[0].u = _3DSTATE_DEPTH_OFFSET_SCALE; 648 cso->ds[1].f = rasterizer->offset_scale; 649 if (rasterizer->poly_stipple_enable) { 650 cso->st |= ST1_ENABLE; 651 } 652 653 if (rasterizer->scissor) 654 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT; 655 else 656 cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT; 657 658 switch (rasterizer->cull_mode) { 659 case PIPE_WINDING_NONE: 660 cso->LIS4 |= S4_CULLMODE_NONE; 661 break; 662 case PIPE_WINDING_CW: 663 cso->LIS4 |= S4_CULLMODE_CW; 664 break; 665 case PIPE_WINDING_CCW: 666 cso->LIS4 |= S4_CULLMODE_CCW; 667 break; 668 case PIPE_WINDING_BOTH: 669 cso->LIS4 |= S4_CULLMODE_BOTH; 670 break; 671 } 672 673 { 674 int line_width = CLAMP((int)(rasterizer->line_width * 2), 1, 0xf); 675 676 cso->LIS4 |= line_width << S4_LINE_WIDTH_SHIFT; 677 678 if (rasterizer->line_smooth) 679 cso->LIS4 |= S4_LINE_ANTIALIAS_ENABLE; 680 } 681 682 { 683 int point_size = CLAMP((int) rasterizer->point_size, 1, 0xff); 684 685 cso->LIS4 |= point_size << S4_POINT_WIDTH_SHIFT; 686 } 687 688 if (rasterizer->flatshade) { 689 cso->LIS4 |= (S4_FLATSHADE_ALPHA | 690 S4_FLATSHADE_COLOR | 691 S4_FLATSHADE_SPECULAR); 692 } 693 694 cso->LIS7 = fui( rasterizer->offset_units ); 695 696 697 return cso; 698} 699 700static void i915_bind_rasterizer_state( struct pipe_context *pipe, 701 void *raster ) 702{ 703 struct i915_context *i915 = i915_context(pipe); 704 705 i915->rasterizer = (struct i915_rasterizer_state *)raster; 706 707 /* pass-through to draw module */ 708 draw_set_rasterizer_state(i915->draw, 709 (i915->rasterizer ? i915->rasterizer->templ : NULL)); 710 711 i915->dirty |= I915_NEW_RASTERIZER; 712} 713 714static void i915_delete_rasterizer_state(struct pipe_context *pipe, 715 void *raster) 716{ 717 FREE(raster); 718} 719 720static void i915_set_vertex_buffers(struct pipe_context *pipe, 721 unsigned count, 722 const struct pipe_vertex_buffer *buffers) 723{ 724 struct i915_context *i915 = i915_context(pipe); 725 /* Because we change state before the draw_set_vertex_buffers call 726 * we need a flush here, just to be sure. 727 */ 728 draw_flush(i915->draw); 729 730 memcpy(i915->vertex_buffer, buffers, count * sizeof(buffers[0])); 731 i915->num_vertex_buffers = count; 732 733 /* pass-through to draw module */ 734 draw_set_vertex_buffers(i915->draw, count, buffers); 735} 736 737static void i915_set_vertex_elements(struct pipe_context *pipe, 738 unsigned count, 739 const struct pipe_vertex_element *elements) 740{ 741 struct i915_context *i915 = i915_context(pipe); 742 /* Because we change state before the draw_set_vertex_buffers call 743 * we need a flush here, just to be sure. 744 */ 745 draw_flush(i915->draw); 746 747 i915->num_vertex_elements = count; 748 /* pass-through to draw module */ 749 draw_set_vertex_elements(i915->draw, count, elements); 750} 751 752 753static void i915_set_edgeflags(struct pipe_context *pipe, 754 const unsigned *bitfield) 755{ 756 /* TODO do something here */ 757} 758 759void 760i915_init_state_functions( struct i915_context *i915 ) 761{ 762 i915->base.set_edgeflags = i915_set_edgeflags; 763 i915->base.create_blend_state = i915_create_blend_state; 764 i915->base.bind_blend_state = i915_bind_blend_state; 765 i915->base.delete_blend_state = i915_delete_blend_state; 766 767 i915->base.create_sampler_state = i915_create_sampler_state; 768 i915->base.bind_sampler_states = i915_bind_sampler_states; 769 i915->base.delete_sampler_state = i915_delete_sampler_state; 770 771 i915->base.create_depth_stencil_alpha_state = i915_create_depth_stencil_state; 772 i915->base.bind_depth_stencil_alpha_state = i915_bind_depth_stencil_state; 773 i915->base.delete_depth_stencil_alpha_state = i915_delete_depth_stencil_state; 774 775 i915->base.create_rasterizer_state = i915_create_rasterizer_state; 776 i915->base.bind_rasterizer_state = i915_bind_rasterizer_state; 777 i915->base.delete_rasterizer_state = i915_delete_rasterizer_state; 778 i915->base.create_fs_state = i915_create_fs_state; 779 i915->base.bind_fs_state = i915_bind_fs_state; 780 i915->base.delete_fs_state = i915_delete_fs_state; 781 i915->base.create_vs_state = i915_create_vs_state; 782 i915->base.bind_vs_state = i915_bind_vs_state; 783 i915->base.delete_vs_state = i915_delete_vs_state; 784 785 i915->base.set_blend_color = i915_set_blend_color; 786 i915->base.set_clip_state = i915_set_clip_state; 787 i915->base.set_constant_buffer = i915_set_constant_buffer; 788 i915->base.set_framebuffer_state = i915_set_framebuffer_state; 789 790 i915->base.set_polygon_stipple = i915_set_polygon_stipple; 791 i915->base.set_scissor_state = i915_set_scissor_state; 792 i915->base.set_sampler_textures = i915_set_sampler_textures; 793 i915->base.set_viewport_state = i915_set_viewport_state; 794 i915->base.set_vertex_buffers = i915_set_vertex_buffers; 795 i915->base.set_vertex_elements = i915_set_vertex_elements; 796} 797