1 /************************************************************************** 2 * 3 * Copyright 2003 VMware, Inc. 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 VMWARE 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 #include "i830_context.h" 29 #include "i830_reg.h" 30 #include "intel_batchbuffer.h" 31 #include "intel_mipmap_tree.h" 32 #include "intel_regions.h" 33 #include "intel_tris.h" 34 #include "intel_fbo.h" 35 #include "intel_buffers.h" 36 #include "tnl/tnl.h" 37 #include "tnl/t_context.h" 38 #include "tnl/t_vertex.h" 39 #include "swrast_setup/swrast_setup.h" 40 #include "main/renderbuffer.h" 41 #include "main/framebuffer.h" 42 #include "main/fbobject.h" 43 44 #define FILE_DEBUG_FLAG DEBUG_STATE 45 46 static bool i830_check_vertex_size(struct intel_context *intel, 47 GLuint expected); 48 49 #define SZ_TO_HW(sz) ((sz-2)&0x3) 50 #define EMIT_SZ(sz) (EMIT_1F + (sz) - 1) 51 #define EMIT_ATTR( ATTR, STYLE, V0 ) \ 52 do { \ 53 intel->vertex_attrs[intel->vertex_attr_count].attrib = (ATTR); \ 54 intel->vertex_attrs[intel->vertex_attr_count].format = (STYLE); \ 55 intel->vertex_attr_count++; \ 56 v0 |= V0; \ 57 } while (0) 58 59 #define EMIT_PAD( N ) \ 60 do { \ 61 intel->vertex_attrs[intel->vertex_attr_count].attrib = 0; \ 62 intel->vertex_attrs[intel->vertex_attr_count].format = EMIT_PAD; \ 63 intel->vertex_attrs[intel->vertex_attr_count].offset = (N); \ 64 intel->vertex_attr_count++; \ 65 } while (0) 66 67 68 #define VRTX_TEX_SET_FMT(n, x) ((x)<<((n)*2)) 69 #define TEXBIND_SET(n, x) ((x)<<((n)*4)) 70 71 static void 72 i830_render_prevalidate(struct intel_context *intel) 73 { 74 } 75 76 static void 77 i830_render_start(struct intel_context *intel) 78 { 79 struct gl_context *ctx = &intel->ctx; 80 struct i830_context *i830 = i830_context(ctx); 81 TNLcontext *tnl = TNL_CONTEXT(ctx); 82 struct vertex_buffer *VB = &tnl->vb; 83 GLbitfield64 index_bitset = tnl->render_inputs_bitset; 84 GLuint v0 = _3DSTATE_VFT0_CMD; 85 GLuint v2 = _3DSTATE_VFT1_CMD; 86 GLuint mcsb1 = 0; 87 88 /* Important: 89 */ 90 VB->AttribPtr[VERT_ATTRIB_POS] = VB->NdcPtr; 91 intel->vertex_attr_count = 0; 92 93 /* EMIT_ATTR's must be in order as they tell t_vertex.c how to 94 * build up a hardware vertex. 95 */ 96 if (index_bitset & BITFIELD64_RANGE(_TNL_ATTRIB_TEX0, _TNL_NUM_TEX)) { 97 EMIT_ATTR(_TNL_ATTRIB_POS, EMIT_4F_VIEWPORT, VFT0_XYZW); 98 intel->coloroffset = 4; 99 } 100 else { 101 EMIT_ATTR(_TNL_ATTRIB_POS, EMIT_3F_VIEWPORT, VFT0_XYZ); 102 intel->coloroffset = 3; 103 } 104 105 if (index_bitset & BITFIELD64_BIT(_TNL_ATTRIB_POINTSIZE)) { 106 EMIT_ATTR(_TNL_ATTRIB_POINTSIZE, EMIT_1F, VFT0_POINT_WIDTH); 107 } 108 109 EMIT_ATTR(_TNL_ATTRIB_COLOR0, EMIT_4UB_4F_BGRA, VFT0_DIFFUSE); 110 111 intel->specoffset = 0; 112 if (index_bitset & (BITFIELD64_BIT(_TNL_ATTRIB_COLOR1) | 113 BITFIELD64_BIT(_TNL_ATTRIB_FOG))) { 114 if (index_bitset & BITFIELD64_BIT(_TNL_ATTRIB_COLOR1)) { 115 intel->specoffset = intel->coloroffset + 1; 116 EMIT_ATTR(_TNL_ATTRIB_COLOR1, EMIT_3UB_3F_BGR, VFT0_SPEC); 117 } 118 else 119 EMIT_PAD(3); 120 121 if (index_bitset & BITFIELD64_BIT(_TNL_ATTRIB_FOG)) 122 EMIT_ATTR(_TNL_ATTRIB_FOG, EMIT_1UB_1F, VFT0_SPEC); 123 else 124 EMIT_PAD(1); 125 } 126 127 if (index_bitset & BITFIELD64_RANGE(_TNL_ATTRIB_TEX0, _TNL_NUM_TEX)) { 128 int i, count = 0; 129 130 for (i = 0; i < I830_TEX_UNITS; i++) { 131 if (index_bitset & BITFIELD64_BIT(_TNL_ATTRIB_TEX(i))) { 132 GLuint sz = VB->AttribPtr[_TNL_ATTRIB_TEX0 + i]->size; 133 GLuint emit; 134 GLuint mcs = (i830->state.Tex[i][I830_TEXREG_MCS] & 135 ~TEXCOORDTYPE_MASK); 136 137 if (intel->ctx.Texture.Unit[i]._Current->Target == GL_TEXTURE_CUBE_MAP) { 138 emit = EMIT_3F; 139 sz = 3; 140 mcs |= TEXCOORDTYPE_VECTOR; 141 } else { 142 switch (sz) { 143 case 1: 144 case 2: 145 case 3: 146 emit = EMIT_2F; 147 sz = 2; 148 mcs |= TEXCOORDTYPE_CARTESIAN; 149 break; 150 case 4: 151 emit = EMIT_3F_XYW; 152 sz = 3; 153 mcs |= TEXCOORDTYPE_HOMOGENEOUS; 154 break; 155 default: 156 continue; 157 } 158 } 159 160 EMIT_ATTR(_TNL_ATTRIB_TEX0 + i, emit, 0); 161 v2 |= VRTX_TEX_SET_FMT(count, SZ_TO_HW(sz)); 162 mcsb1 |= (count + 8) << (i * 4); 163 164 if (mcs != i830->state.Tex[i][I830_TEXREG_MCS]) { 165 I830_STATECHANGE(i830, I830_UPLOAD_TEX(i)); 166 i830->state.Tex[i][I830_TEXREG_MCS] = mcs; 167 } 168 169 count++; 170 } 171 } 172 173 v0 |= VFT0_TEX_COUNT(count); 174 } 175 176 /* Only need to change the vertex emit code if there has been a 177 * statechange to a new hardware vertex format: 178 */ 179 if (v0 != i830->state.Ctx[I830_CTXREG_VF] || 180 v2 != i830->state.Ctx[I830_CTXREG_VF2] || 181 mcsb1 != i830->state.Ctx[I830_CTXREG_MCSB1] || 182 index_bitset != i830->last_index_bitset) { 183 I830_STATECHANGE(i830, I830_UPLOAD_CTX); 184 185 /* Must do this *after* statechange, so as not to affect 186 * buffered vertices reliant on the old state: 187 */ 188 intel->vertex_size = 189 _tnl_install_attrs(ctx, 190 intel->vertex_attrs, 191 intel->vertex_attr_count, 192 intel->ViewportMatrix.m, 0); 193 194 intel->vertex_size >>= 2; 195 196 i830->state.Ctx[I830_CTXREG_VF] = v0; 197 i830->state.Ctx[I830_CTXREG_VF2] = v2; 198 i830->state.Ctx[I830_CTXREG_MCSB1] = mcsb1; 199 i830->last_index_bitset = index_bitset; 200 201 assert(i830_check_vertex_size(intel, intel->vertex_size)); 202 } 203 } 204 205 static void 206 i830_reduced_primitive_state(struct intel_context *intel, GLenum rprim) 207 { 208 struct i830_context *i830 = i830_context(&intel->ctx); 209 GLuint st1 = i830->state.Stipple[I830_STPREG_ST1]; 210 211 st1 &= ~ST1_ENABLE; 212 213 switch (rprim) { 214 case GL_TRIANGLES: 215 if (intel->ctx.Polygon.StippleFlag && intel->hw_stipple) 216 st1 |= ST1_ENABLE; 217 break; 218 case GL_LINES: 219 case GL_POINTS: 220 default: 221 break; 222 } 223 224 i830->intel.reduced_primitive = rprim; 225 226 if (st1 != i830->state.Stipple[I830_STPREG_ST1]) { 227 INTEL_FIREVERTICES(intel); 228 229 I830_STATECHANGE(i830, I830_UPLOAD_STIPPLE); 230 i830->state.Stipple[I830_STPREG_ST1] = st1; 231 } 232 } 233 234 /* Pull apart the vertex format registers and figure out how large a 235 * vertex is supposed to be. 236 */ 237 static bool 238 i830_check_vertex_size(struct intel_context *intel, GLuint expected) 239 { 240 struct i830_context *i830 = i830_context(&intel->ctx); 241 int vft0 = i830->state.Ctx[I830_CTXREG_VF]; 242 int vft1 = i830->state.Ctx[I830_CTXREG_VF2]; 243 int nrtex = (vft0 & VFT0_TEX_COUNT_MASK) >> VFT0_TEX_COUNT_SHIFT; 244 int i, sz = 0; 245 246 switch (vft0 & VFT0_XYZW_MASK) { 247 case VFT0_XY: 248 sz = 2; 249 break; 250 case VFT0_XYZ: 251 sz = 3; 252 break; 253 case VFT0_XYW: 254 sz = 3; 255 break; 256 case VFT0_XYZW: 257 sz = 4; 258 break; 259 default: 260 fprintf(stderr, "no xyzw specified\n"); 261 return 0; 262 } 263 264 if (vft0 & VFT0_SPEC) 265 sz++; 266 if (vft0 & VFT0_DIFFUSE) 267 sz++; 268 if (vft0 & VFT0_DEPTH_OFFSET) 269 sz++; 270 if (vft0 & VFT0_POINT_WIDTH) 271 sz++; 272 273 for (i = 0; i < nrtex; i++) { 274 switch (vft1 & VFT1_TEX0_MASK) { 275 case TEXCOORDFMT_2D: 276 sz += 2; 277 break; 278 case TEXCOORDFMT_3D: 279 sz += 3; 280 break; 281 case TEXCOORDFMT_4D: 282 sz += 4; 283 break; 284 case TEXCOORDFMT_1D: 285 sz += 1; 286 break; 287 } 288 vft1 >>= VFT1_TEX1_SHIFT; 289 } 290 291 if (sz != expected) 292 fprintf(stderr, "vertex size mismatch %d/%d\n", sz, expected); 293 294 return sz == expected; 295 } 296 297 static void 298 i830_emit_invarient_state(struct intel_context *intel) 299 { 300 BATCH_LOCALS; 301 302 BEGIN_BATCH(29); 303 304 OUT_BATCH(_3DSTATE_DFLT_DIFFUSE_CMD); 305 OUT_BATCH(0); 306 307 OUT_BATCH(_3DSTATE_DFLT_SPEC_CMD); 308 OUT_BATCH(0); 309 310 OUT_BATCH(_3DSTATE_DFLT_Z_CMD); 311 OUT_BATCH(0); 312 313 OUT_BATCH(_3DSTATE_FOG_MODE_CMD); 314 OUT_BATCH(FOGFUNC_ENABLE | 315 FOG_LINEAR_CONST | FOGSRC_INDEX_Z | ENABLE_FOG_DENSITY); 316 OUT_BATCH(0); 317 OUT_BATCH(0); 318 319 320 OUT_BATCH(_3DSTATE_MAP_TEX_STREAM_CMD | 321 MAP_UNIT(0) | 322 DISABLE_TEX_STREAM_BUMP | 323 ENABLE_TEX_STREAM_COORD_SET | 324 TEX_STREAM_COORD_SET(0) | 325 ENABLE_TEX_STREAM_MAP_IDX | TEX_STREAM_MAP_IDX(0)); 326 OUT_BATCH(_3DSTATE_MAP_TEX_STREAM_CMD | 327 MAP_UNIT(1) | 328 DISABLE_TEX_STREAM_BUMP | 329 ENABLE_TEX_STREAM_COORD_SET | 330 TEX_STREAM_COORD_SET(1) | 331 ENABLE_TEX_STREAM_MAP_IDX | TEX_STREAM_MAP_IDX(1)); 332 OUT_BATCH(_3DSTATE_MAP_TEX_STREAM_CMD | 333 MAP_UNIT(2) | 334 DISABLE_TEX_STREAM_BUMP | 335 ENABLE_TEX_STREAM_COORD_SET | 336 TEX_STREAM_COORD_SET(2) | 337 ENABLE_TEX_STREAM_MAP_IDX | TEX_STREAM_MAP_IDX(2)); 338 OUT_BATCH(_3DSTATE_MAP_TEX_STREAM_CMD | 339 MAP_UNIT(3) | 340 DISABLE_TEX_STREAM_BUMP | 341 ENABLE_TEX_STREAM_COORD_SET | 342 TEX_STREAM_COORD_SET(3) | 343 ENABLE_TEX_STREAM_MAP_IDX | TEX_STREAM_MAP_IDX(3)); 344 345 OUT_BATCH(_3DSTATE_MAP_COORD_TRANSFORM); 346 OUT_BATCH(DISABLE_TEX_TRANSFORM | TEXTURE_SET(0)); 347 OUT_BATCH(_3DSTATE_MAP_COORD_TRANSFORM); 348 OUT_BATCH(DISABLE_TEX_TRANSFORM | TEXTURE_SET(1)); 349 OUT_BATCH(_3DSTATE_MAP_COORD_TRANSFORM); 350 OUT_BATCH(DISABLE_TEX_TRANSFORM | TEXTURE_SET(2)); 351 OUT_BATCH(_3DSTATE_MAP_COORD_TRANSFORM); 352 OUT_BATCH(DISABLE_TEX_TRANSFORM | TEXTURE_SET(3)); 353 354 OUT_BATCH(_3DSTATE_VERTEX_TRANSFORM); 355 OUT_BATCH(DISABLE_VIEWPORT_TRANSFORM | DISABLE_PERSPECTIVE_DIVIDE); 356 357 OUT_BATCH(_3DSTATE_W_STATE_CMD); 358 OUT_BATCH(MAGIC_W_STATE_DWORD1); 359 OUT_BATCH(0x3f800000 /* 1.0 in IEEE float */ ); 360 361 362 OUT_BATCH(_3DSTATE_COLOR_FACTOR_CMD); 363 OUT_BATCH(0x80808080); /* .5 required in alpha for GL_DOT3_RGBA_EXT */ 364 365 ADVANCE_BATCH(); 366 } 367 368 369 #define emit( intel, state, size ) \ 370 intel_batchbuffer_data(intel, state, size) 371 372 static GLuint 373 get_dirty(struct i830_hw_state *state) 374 { 375 return state->active & ~state->emitted; 376 } 377 378 static GLuint 379 get_state_size(struct i830_hw_state *state) 380 { 381 GLuint dirty = get_dirty(state); 382 GLuint sz = 0; 383 GLuint i; 384 385 if (dirty & I830_UPLOAD_INVARIENT) 386 sz += 40 * sizeof(int); 387 388 if (dirty & I830_UPLOAD_RASTER_RULES) 389 sz += sizeof(state->RasterRules); 390 391 if (dirty & I830_UPLOAD_CTX) 392 sz += sizeof(state->Ctx); 393 394 if (dirty & I830_UPLOAD_BUFFERS) 395 sz += sizeof(state->Buffer); 396 397 if (dirty & I830_UPLOAD_STIPPLE) 398 sz += sizeof(state->Stipple); 399 400 for (i = 0; i < I830_TEX_UNITS; i++) { 401 if ((dirty & I830_UPLOAD_TEX(i))) 402 sz += sizeof(state->Tex[i]); 403 404 if (dirty & I830_UPLOAD_TEXBLEND(i)) 405 sz += state->TexBlendWordsUsed[i] * 4; 406 } 407 408 return sz; 409 } 410 411 412 /* Push the state into the sarea and/or texture memory. 413 */ 414 static void 415 i830_emit_state(struct intel_context *intel) 416 { 417 struct i830_context *i830 = i830_context(&intel->ctx); 418 struct i830_hw_state *state = &i830->state; 419 int i, count; 420 GLuint dirty; 421 drm_intel_bo *aper_array[3 + I830_TEX_UNITS]; 422 int aper_count; 423 GET_CURRENT_CONTEXT(ctx); 424 BATCH_LOCALS; 425 426 /* We don't hold the lock at this point, so want to make sure that 427 * there won't be a buffer wrap between the state emits and the primitive 428 * emit header. 429 * 430 * It might be better to talk about explicit places where 431 * scheduling is allowed, rather than assume that it is whenever a 432 * batchbuffer fills up. 433 */ 434 intel_batchbuffer_require_space(intel, 435 get_state_size(state) + 436 INTEL_PRIM_EMIT_SIZE); 437 count = 0; 438 again: 439 aper_count = 0; 440 dirty = get_dirty(state); 441 442 aper_array[aper_count++] = intel->batch.bo; 443 if (dirty & I830_UPLOAD_BUFFERS) { 444 aper_array[aper_count++] = state->draw_region->bo; 445 if (state->depth_region) 446 aper_array[aper_count++] = state->depth_region->bo; 447 } 448 449 for (i = 0; i < I830_TEX_UNITS; i++) 450 if (dirty & I830_UPLOAD_TEX(i)) { 451 if (state->tex_buffer[i]) { 452 aper_array[aper_count++] = state->tex_buffer[i]; 453 } 454 } 455 456 if (dri_bufmgr_check_aperture_space(aper_array, aper_count)) { 457 if (count == 0) { 458 count++; 459 intel_batchbuffer_flush(intel); 460 goto again; 461 } else { 462 _mesa_error(ctx, GL_OUT_OF_MEMORY, "i830 emit state"); 463 assert(0); 464 } 465 } 466 467 468 /* Do this here as we may have flushed the batchbuffer above, 469 * causing more state to be dirty! 470 */ 471 dirty = get_dirty(state); 472 state->emitted |= dirty; 473 assert(get_dirty(state) == 0); 474 475 if (dirty & I830_UPLOAD_INVARIENT) { 476 DBG("I830_UPLOAD_INVARIENT:\n"); 477 i830_emit_invarient_state(intel); 478 } 479 480 if (dirty & I830_UPLOAD_RASTER_RULES) { 481 DBG("I830_UPLOAD_RASTER_RULES:\n"); 482 emit(intel, state->RasterRules, sizeof(state->RasterRules)); 483 } 484 485 if (dirty & I830_UPLOAD_CTX) { 486 DBG("I830_UPLOAD_CTX:\n"); 487 emit(intel, state->Ctx, sizeof(state->Ctx)); 488 489 } 490 491 if (dirty & I830_UPLOAD_BUFFERS) { 492 GLuint count = 15; 493 494 DBG("I830_UPLOAD_BUFFERS:\n"); 495 496 if (state->depth_region) 497 count += 3; 498 499 BEGIN_BATCH(count); 500 OUT_BATCH(state->Buffer[I830_DESTREG_CBUFADDR0]); 501 OUT_BATCH(state->Buffer[I830_DESTREG_CBUFADDR1]); 502 OUT_RELOC(state->draw_region->bo, 503 I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0); 504 505 if (state->depth_region) { 506 OUT_BATCH(state->Buffer[I830_DESTREG_DBUFADDR0]); 507 OUT_BATCH(state->Buffer[I830_DESTREG_DBUFADDR1]); 508 OUT_RELOC(state->depth_region->bo, 509 I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0); 510 } 511 512 OUT_BATCH(state->Buffer[I830_DESTREG_DV0]); 513 OUT_BATCH(state->Buffer[I830_DESTREG_DV1]); 514 OUT_BATCH(state->Buffer[I830_DESTREG_SR0]); 515 OUT_BATCH(state->Buffer[I830_DESTREG_SR1]); 516 OUT_BATCH(state->Buffer[I830_DESTREG_SR2]); 517 OUT_BATCH(state->Buffer[I830_DESTREG_SENABLE]); 518 519 assert(state->Buffer[I830_DESTREG_DRAWRECT0] != MI_NOOP); 520 OUT_BATCH(state->Buffer[I830_DESTREG_DRAWRECT0]); 521 OUT_BATCH(state->Buffer[I830_DESTREG_DRAWRECT1]); 522 OUT_BATCH(state->Buffer[I830_DESTREG_DRAWRECT2]); 523 OUT_BATCH(state->Buffer[I830_DESTREG_DRAWRECT3]); 524 OUT_BATCH(state->Buffer[I830_DESTREG_DRAWRECT4]); 525 OUT_BATCH(state->Buffer[I830_DESTREG_DRAWRECT5]); 526 ADVANCE_BATCH(); 527 } 528 529 if (dirty & I830_UPLOAD_STIPPLE) { 530 DBG("I830_UPLOAD_STIPPLE:\n"); 531 emit(intel, state->Stipple, sizeof(state->Stipple)); 532 } 533 534 for (i = 0; i < I830_TEX_UNITS; i++) { 535 if ((dirty & I830_UPLOAD_TEX(i))) { 536 DBG("I830_UPLOAD_TEX(%d):\n", i); 537 538 BEGIN_BATCH(I830_TEX_SETUP_SIZE + 1); 539 OUT_BATCH(state->Tex[i][I830_TEXREG_TM0LI]); 540 541 OUT_RELOC(state->tex_buffer[i], 542 I915_GEM_DOMAIN_SAMPLER, 0, 543 state->tex_offset[i]); 544 545 OUT_BATCH(state->Tex[i][I830_TEXREG_TM0S1]); 546 OUT_BATCH(state->Tex[i][I830_TEXREG_TM0S2]); 547 OUT_BATCH(state->Tex[i][I830_TEXREG_TM0S3]); 548 OUT_BATCH(state->Tex[i][I830_TEXREG_TM0S4]); 549 OUT_BATCH(state->Tex[i][I830_TEXREG_MCS]); 550 OUT_BATCH(state->Tex[i][I830_TEXREG_CUBE]); 551 552 ADVANCE_BATCH(); 553 } 554 555 if (dirty & I830_UPLOAD_TEXBLEND(i)) { 556 DBG("I830_UPLOAD_TEXBLEND(%d): %d words\n", i, 557 state->TexBlendWordsUsed[i]); 558 emit(intel, state->TexBlend[i], state->TexBlendWordsUsed[i] * 4); 559 } 560 } 561 562 assert(get_dirty(state) == 0); 563 } 564 565 static void 566 i830_destroy_context(struct intel_context *intel) 567 { 568 GLuint i; 569 struct i830_context *i830 = i830_context(&intel->ctx); 570 571 intel_region_release(&i830->state.draw_region); 572 intel_region_release(&i830->state.depth_region); 573 574 for (i = 0; i < I830_TEX_UNITS; i++) { 575 if (i830->state.tex_buffer[i] != NULL) { 576 drm_intel_bo_unreference(i830->state.tex_buffer[i]); 577 i830->state.tex_buffer[i] = NULL; 578 } 579 } 580 581 _tnl_free_vertices(&intel->ctx); 582 } 583 584 static uint32_t i830_render_target_format_for_mesa_format[MESA_FORMAT_COUNT] = 585 { 586 [MESA_FORMAT_B8G8R8A8_UNORM] = DV_PF_8888, 587 [MESA_FORMAT_B8G8R8X8_UNORM] = DV_PF_8888, 588 [MESA_FORMAT_B5G6R5_UNORM] = DV_PF_565, 589 [MESA_FORMAT_B5G5R5A1_UNORM] = DV_PF_1555, 590 [MESA_FORMAT_B4G4R4A4_UNORM] = DV_PF_4444, 591 }; 592 593 static bool 594 i830_render_target_supported(struct intel_context *intel, 595 struct gl_renderbuffer *rb) 596 { 597 mesa_format format = rb->Format; 598 599 if (format == MESA_FORMAT_Z24_UNORM_S8_UINT || 600 format == MESA_FORMAT_Z24_UNORM_X8_UINT || 601 format == MESA_FORMAT_Z_UNORM16) { 602 return true; 603 } 604 605 return i830_render_target_format_for_mesa_format[format] != 0; 606 } 607 608 static void 609 i830_set_draw_region(struct intel_context *intel, 610 struct intel_region *color_regions[], 611 struct intel_region *depth_region, 612 GLuint num_regions) 613 { 614 struct i830_context *i830 = i830_context(&intel->ctx); 615 struct gl_context *ctx = &intel->ctx; 616 struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0]; 617 struct intel_renderbuffer *irb = intel_renderbuffer(rb); 618 struct gl_renderbuffer *drb; 619 struct intel_renderbuffer *idrb = NULL; 620 GLuint value; 621 struct i830_hw_state *state = &i830->state; 622 uint32_t draw_x, draw_y; 623 624 if (state->draw_region != color_regions[0]) { 625 intel_region_reference(&state->draw_region, color_regions[0]); 626 } 627 if (state->depth_region != depth_region) { 628 intel_region_reference(&state->depth_region, depth_region); 629 } 630 631 /* 632 * Set stride/cpp values 633 */ 634 i915_set_buf_info_for_region(&state->Buffer[I830_DESTREG_CBUFADDR0], 635 color_regions[0], BUF_3D_ID_COLOR_BACK); 636 637 i915_set_buf_info_for_region(&state->Buffer[I830_DESTREG_DBUFADDR0], 638 depth_region, BUF_3D_ID_DEPTH); 639 640 /* 641 * Compute/set I830_DESTREG_DV1 value 642 */ 643 value = (DSTORG_HORT_BIAS(0x8) | /* .5 */ 644 DSTORG_VERT_BIAS(0x8) | DEPTH_IS_Z); /* .5 */ 645 646 if (irb != NULL) { 647 value |= i830_render_target_format_for_mesa_format[intel_rb_format(irb)]; 648 } 649 650 if (depth_region && depth_region->cpp == 4) { 651 value |= DEPTH_FRMT_24_FIXED_8_OTHER; 652 } 653 else { 654 value |= DEPTH_FRMT_16_FIXED; 655 } 656 state->Buffer[I830_DESTREG_DV1] = value; 657 658 drb = ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer; 659 if (!drb) 660 drb = ctx->DrawBuffer->Attachment[BUFFER_STENCIL].Renderbuffer; 661 662 if (drb) 663 idrb = intel_renderbuffer(drb); 664 665 /* We set up the drawing rectangle to be offset into the color 666 * region's location in the miptree. If it doesn't match with 667 * depth's offsets, we can't render to it. 668 * 669 * (Well, not actually true -- the hw grew a bit to let depth's 670 * offset get forced to 0,0. We may want to use that if people are 671 * hitting that case. Also, some configurations may be supportable 672 * by tweaking the start offset of the buffers around, which we 673 * can't do in general due to tiling) 674 */ 675 FALLBACK(intel, I830_FALLBACK_DRAW_OFFSET, 676 idrb && irb && (idrb->draw_x != irb->draw_x || 677 idrb->draw_y != irb->draw_y)); 678 679 if (irb) { 680 draw_x = irb->draw_x; 681 draw_y = irb->draw_y; 682 } else if (idrb) { 683 draw_x = idrb->draw_x; 684 draw_y = idrb->draw_y; 685 } else { 686 draw_x = 0; 687 draw_y = 0; 688 } 689 690 state->Buffer[I830_DESTREG_DRAWRECT0] = _3DSTATE_DRAWRECT_INFO; 691 state->Buffer[I830_DESTREG_DRAWRECT1] = 0; 692 state->Buffer[I830_DESTREG_DRAWRECT2] = (draw_y << 16) | draw_x; 693 state->Buffer[I830_DESTREG_DRAWRECT3] = 694 ((ctx->DrawBuffer->Width + draw_x - 1) & 0xffff) | 695 ((ctx->DrawBuffer->Height + draw_y - 1) << 16); 696 state->Buffer[I830_DESTREG_DRAWRECT4] = (draw_y << 16) | draw_x; 697 state->Buffer[I830_DESTREG_DRAWRECT5] = MI_NOOP; 698 699 I830_STATECHANGE(i830, I830_UPLOAD_BUFFERS); 700 } 701 702 /** 703 * Update the hardware state for drawing into a window or framebuffer object. 704 * 705 * Called by glDrawBuffer, glBindFramebufferEXT, MakeCurrent, and other 706 * places within the driver. 707 * 708 * Basically, this needs to be called any time the current framebuffer 709 * changes, the renderbuffers change, or we need to draw into different 710 * color buffers. 711 */ 712 static void 713 i830_update_draw_buffer(struct intel_context *intel) 714 { 715 struct gl_context *ctx = &intel->ctx; 716 struct gl_framebuffer *fb = ctx->DrawBuffer; 717 struct intel_region *colorRegions[MAX_DRAW_BUFFERS], *depthRegion = NULL; 718 struct intel_renderbuffer *irbDepth = NULL, *irbStencil = NULL; 719 720 if (!fb) { 721 /* this can happen during the initial context initialization */ 722 return; 723 } 724 725 irbDepth = intel_get_renderbuffer(fb, BUFFER_DEPTH); 726 irbStencil = intel_get_renderbuffer(fb, BUFFER_STENCIL); 727 728 /* Do this here, not core Mesa, since this function is called from 729 * many places within the driver. 730 */ 731 if (ctx->NewState & _NEW_BUFFERS) { 732 /* this updates the DrawBuffer->_NumColorDrawBuffers fields, etc */ 733 _mesa_update_framebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer); 734 /* this updates the DrawBuffer's Width/Height if it's a FBO */ 735 _mesa_update_draw_buffer_bounds(ctx, ctx->DrawBuffer); 736 } 737 738 if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { 739 /* this may occur when we're called by glBindFrameBuffer() during 740 * the process of someone setting up renderbuffers, etc. 741 */ 742 /*_mesa_debug(ctx, "DrawBuffer: incomplete user FBO\n");*/ 743 return; 744 } 745 746 /* How many color buffers are we drawing into? 747 * 748 * If there are zero buffers or the buffer is too big, don't configure any 749 * regions for hardware drawing. We'll fallback to software below. Not 750 * having regions set makes some of the software fallback paths faster. 751 */ 752 if ((fb->Width > ctx->Const.MaxRenderbufferSize) 753 || (fb->Height > ctx->Const.MaxRenderbufferSize) 754 || (fb->_NumColorDrawBuffers == 0)) { 755 /* writing to 0 */ 756 colorRegions[0] = NULL; 757 } 758 else if (fb->_NumColorDrawBuffers > 1) { 759 int i; 760 struct intel_renderbuffer *irb; 761 762 for (i = 0; i < fb->_NumColorDrawBuffers; i++) { 763 irb = intel_renderbuffer(fb->_ColorDrawBuffers[i]); 764 colorRegions[i] = (irb && irb->mt) ? irb->mt->region : NULL; 765 } 766 } 767 else { 768 /* Get the intel_renderbuffer for the single colorbuffer we're drawing 769 * into. 770 */ 771 if (_mesa_is_winsys_fbo(fb)) { 772 /* drawing to window system buffer */ 773 if (fb->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT) 774 colorRegions[0] = intel_get_rb_region(fb, BUFFER_FRONT_LEFT); 775 else 776 colorRegions[0] = intel_get_rb_region(fb, BUFFER_BACK_LEFT); 777 } 778 else { 779 /* drawing to user-created FBO */ 780 struct intel_renderbuffer *irb; 781 irb = intel_renderbuffer(fb->_ColorDrawBuffers[0]); 782 colorRegions[0] = (irb && irb->mt->region) ? irb->mt->region : NULL; 783 } 784 } 785 786 if (!colorRegions[0]) { 787 FALLBACK(intel, INTEL_FALLBACK_DRAW_BUFFER, true); 788 } 789 else { 790 FALLBACK(intel, INTEL_FALLBACK_DRAW_BUFFER, false); 791 } 792 793 /* Check for depth fallback. */ 794 if (irbDepth && irbDepth->mt) { 795 FALLBACK(intel, INTEL_FALLBACK_DEPTH_BUFFER, false); 796 depthRegion = irbDepth->mt->region; 797 } else if (irbDepth && !irbDepth->mt) { 798 FALLBACK(intel, INTEL_FALLBACK_DEPTH_BUFFER, true); 799 depthRegion = NULL; 800 } else { /* !irbDepth */ 801 /* No fallback is needed because there is no depth buffer. */ 802 FALLBACK(intel, INTEL_FALLBACK_DEPTH_BUFFER, false); 803 depthRegion = NULL; 804 } 805 806 /* Check for stencil fallback. */ 807 if (irbStencil && irbStencil->mt) { 808 assert(intel_rb_format(irbStencil) == MESA_FORMAT_Z24_UNORM_S8_UINT); 809 FALLBACK(intel, INTEL_FALLBACK_STENCIL_BUFFER, false); 810 } else if (irbStencil && !irbStencil->mt) { 811 FALLBACK(intel, INTEL_FALLBACK_STENCIL_BUFFER, true); 812 } else { /* !irbStencil */ 813 /* No fallback is needed because there is no stencil buffer. */ 814 FALLBACK(intel, INTEL_FALLBACK_STENCIL_BUFFER, false); 815 } 816 817 /* If we have a (packed) stencil buffer attached but no depth buffer, 818 * we still need to set up the shared depth/stencil state so we can use it. 819 */ 820 if (depthRegion == NULL && irbStencil && irbStencil->mt 821 && intel_rb_format(irbStencil) == MESA_FORMAT_Z24_UNORM_S8_UINT) { 822 depthRegion = irbStencil->mt->region; 823 } 824 825 /* 826 * Update depth and stencil test state 827 */ 828 ctx->Driver.Enable(ctx, GL_DEPTH_TEST, ctx->Depth.Test); 829 ctx->Driver.Enable(ctx, GL_STENCIL_TEST, 830 (ctx->Stencil.Enabled && fb->Visual.stencilBits > 0)); 831 832 intel->vtbl.set_draw_region(intel, colorRegions, depthRegion, 833 fb->_NumColorDrawBuffers); 834 intel->NewGLState |= _NEW_BUFFERS; 835 836 /* Set state we know depends on drawable parameters: 837 */ 838 intelCalcViewport(ctx); 839 ctx->Driver.Scissor(ctx); 840 841 /* Update culling direction which changes depending on the 842 * orientation of the buffer: 843 */ 844 ctx->Driver.FrontFace(ctx, ctx->Polygon.FrontFace); 845 } 846 847 /* This isn't really handled at the moment. 848 */ 849 static void 850 i830_new_batch(struct intel_context *intel) 851 { 852 struct i830_context *i830 = i830_context(&intel->ctx); 853 i830->state.emitted = 0; 854 } 855 856 static void 857 i830_assert_not_dirty( struct intel_context *intel ) 858 { 859 struct i830_context *i830 = i830_context(&intel->ctx); 860 assert(!get_dirty(&i830->state)); 861 (void) i830; 862 } 863 864 static void 865 i830_invalidate_state(struct intel_context *intel, GLuint new_state) 866 { 867 struct gl_context *ctx = &intel->ctx; 868 869 _swsetup_InvalidateState(ctx, new_state); 870 _tnl_InvalidateState(ctx, new_state); 871 _tnl_invalidate_vertex_state(ctx, new_state); 872 873 if (new_state & _NEW_LIGHT) 874 i830_update_provoking_vertex(&intel->ctx); 875 } 876 877 void 878 i830InitVtbl(struct i830_context *i830) 879 { 880 i830->intel.vtbl.check_vertex_size = i830_check_vertex_size; 881 i830->intel.vtbl.destroy = i830_destroy_context; 882 i830->intel.vtbl.emit_state = i830_emit_state; 883 i830->intel.vtbl.new_batch = i830_new_batch; 884 i830->intel.vtbl.reduced_primitive_state = i830_reduced_primitive_state; 885 i830->intel.vtbl.set_draw_region = i830_set_draw_region; 886 i830->intel.vtbl.update_draw_buffer = i830_update_draw_buffer; 887 i830->intel.vtbl.update_texture_state = i830UpdateTextureState; 888 i830->intel.vtbl.render_start = i830_render_start; 889 i830->intel.vtbl.render_prevalidate = i830_render_prevalidate; 890 i830->intel.vtbl.assert_not_dirty = i830_assert_not_dirty; 891 i830->intel.vtbl.finish_batch = intel_finish_vb; 892 i830->intel.vtbl.invalidate_state = i830_invalidate_state; 893 i830->intel.vtbl.render_target_supported = i830_render_target_supported; 894 } 895
