intel_context.c revision cdcef6cbf4dd80047819e9098e34a3b98bd502a4
1/************************************************************************** 2 * 3 * Copyright 2003 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 29#include "main/glheader.h" 30#include "main/context.h" 31#include "main/extensions.h" 32#include "main/framebuffer.h" 33#include "main/imports.h" 34#include "main/points.h" 35 36#include "swrast/swrast.h" 37#include "swrast_setup/swrast_setup.h" 38#include "tnl/tnl.h" 39#include "drivers/common/driverfuncs.h" 40#include "drivers/common/meta.h" 41 42#include "i830_dri.h" 43 44#include "intel_chipset.h" 45#include "intel_buffers.h" 46#include "intel_tex.h" 47#include "intel_batchbuffer.h" 48#include "intel_clear.h" 49#include "intel_extensions.h" 50#include "intel_pixel.h" 51#include "intel_regions.h" 52#include "intel_buffer_objects.h" 53#include "intel_fbo.h" 54#include "intel_bufmgr.h" 55#include "intel_screen.h" 56 57#include "drirenderbuffer.h" 58#include "utils.h" 59 60 61#ifndef INTEL_DEBUG 62int INTEL_DEBUG = (0); 63#endif 64 65 66#define DRIVER_DATE "20100330 DEVELOPMENT" 67#define DRIVER_DATE_GEM "GEM " DRIVER_DATE 68 69 70static const GLubyte * 71intelGetString(GLcontext * ctx, GLenum name) 72{ 73 const struct intel_context *const intel = intel_context(ctx); 74 const char *chipset; 75 static char buffer[128]; 76 77 switch (name) { 78 case GL_VENDOR: 79 return (GLubyte *) "Tungsten Graphics, Inc"; 80 break; 81 82 case GL_RENDERER: 83 switch (intel->intelScreen->deviceID) { 84 case PCI_CHIP_845_G: 85 chipset = "Intel(R) 845G"; 86 break; 87 case PCI_CHIP_I830_M: 88 chipset = "Intel(R) 830M"; 89 break; 90 case PCI_CHIP_I855_GM: 91 chipset = "Intel(R) 852GM/855GM"; 92 break; 93 case PCI_CHIP_I865_G: 94 chipset = "Intel(R) 865G"; 95 break; 96 case PCI_CHIP_I915_G: 97 chipset = "Intel(R) 915G"; 98 break; 99 case PCI_CHIP_E7221_G: 100 chipset = "Intel (R) E7221G (i915)"; 101 break; 102 case PCI_CHIP_I915_GM: 103 chipset = "Intel(R) 915GM"; 104 break; 105 case PCI_CHIP_I945_G: 106 chipset = "Intel(R) 945G"; 107 break; 108 case PCI_CHIP_I945_GM: 109 chipset = "Intel(R) 945GM"; 110 break; 111 case PCI_CHIP_I945_GME: 112 chipset = "Intel(R) 945GME"; 113 break; 114 case PCI_CHIP_G33_G: 115 chipset = "Intel(R) G33"; 116 break; 117 case PCI_CHIP_Q35_G: 118 chipset = "Intel(R) Q35"; 119 break; 120 case PCI_CHIP_Q33_G: 121 chipset = "Intel(R) Q33"; 122 break; 123 case PCI_CHIP_IGD_GM: 124 case PCI_CHIP_IGD_G: 125 chipset = "Intel(R) IGD"; 126 break; 127 case PCI_CHIP_I965_Q: 128 chipset = "Intel(R) 965Q"; 129 break; 130 case PCI_CHIP_I965_G: 131 case PCI_CHIP_I965_G_1: 132 chipset = "Intel(R) 965G"; 133 break; 134 case PCI_CHIP_I946_GZ: 135 chipset = "Intel(R) 946GZ"; 136 break; 137 case PCI_CHIP_I965_GM: 138 chipset = "Intel(R) 965GM"; 139 break; 140 case PCI_CHIP_I965_GME: 141 chipset = "Intel(R) 965GME/GLE"; 142 break; 143 case PCI_CHIP_GM45_GM: 144 chipset = "Mobile Intel® GM45 Express Chipset"; 145 break; 146 case PCI_CHIP_IGD_E_G: 147 chipset = "Intel(R) Integrated Graphics Device"; 148 break; 149 case PCI_CHIP_G45_G: 150 chipset = "Intel(R) G45/G43"; 151 break; 152 case PCI_CHIP_Q45_G: 153 chipset = "Intel(R) Q45/Q43"; 154 break; 155 case PCI_CHIP_G41_G: 156 chipset = "Intel(R) G41"; 157 break; 158 case PCI_CHIP_B43_G: 159 chipset = "Intel(R) B43"; 160 break; 161 case PCI_CHIP_ILD_G: 162 chipset = "Intel(R) Ironlake Desktop"; 163 break; 164 case PCI_CHIP_ILM_G: 165 chipset = "Intel(R) Ironlake Mobile"; 166 break; 167 default: 168 chipset = "Unknown Intel Chipset"; 169 break; 170 } 171 172 (void) driGetRendererString(buffer, chipset, DRIVER_DATE_GEM, 0); 173 return (GLubyte *) buffer; 174 175 default: 176 return NULL; 177 } 178} 179 180static unsigned 181intel_bits_per_pixel(const struct intel_renderbuffer *rb) 182{ 183 return _mesa_get_format_bytes(rb->Base.Format) * 8; 184} 185 186void 187intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable) 188{ 189 struct gl_framebuffer *fb = drawable->driverPrivate; 190 struct intel_renderbuffer *rb; 191 struct intel_region *region, *depth_region; 192 struct intel_context *intel = context->driverPrivate; 193 struct intel_renderbuffer *front_rb, *back_rb, *depth_rb, *stencil_rb; 194 __DRIbuffer *buffers = NULL; 195 __DRIscreen *screen; 196 int i, count; 197 unsigned int attachments[10]; 198 const char *region_name; 199 200 /* If we're rendering to the fake front buffer, make sure all the 201 * pending drawing has landed on the real front buffer. Otherwise 202 * when we eventually get to DRI2GetBuffersWithFormat the stale 203 * real front buffer contents will get copied to the new fake front 204 * buffer. 205 */ 206 if (intel->is_front_buffer_rendering) 207 intel_flush(&intel->ctx, GL_FALSE); 208 209 /* Set this up front, so that in case our buffers get invalidated 210 * while we're getting new buffers, we don't clobber the stamp and 211 * thus ignore the invalidate. */ 212 drawable->lastStamp = drawable->dri2.stamp; 213 214 if (INTEL_DEBUG & DEBUG_DRI) 215 fprintf(stderr, "enter %s, drawable %p\n", __func__, drawable); 216 217 screen = intel->intelScreen->driScrnPriv; 218 219 if (screen->dri2.loader 220 && (screen->dri2.loader->base.version > 2) 221 && (screen->dri2.loader->getBuffersWithFormat != NULL)) { 222 223 front_rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); 224 back_rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT); 225 depth_rb = intel_get_renderbuffer(fb, BUFFER_DEPTH); 226 stencil_rb = intel_get_renderbuffer(fb, BUFFER_STENCIL); 227 228 i = 0; 229 if ((intel->is_front_buffer_rendering || 230 intel->is_front_buffer_reading || 231 !back_rb) && front_rb) { 232 attachments[i++] = __DRI_BUFFER_FRONT_LEFT; 233 attachments[i++] = intel_bits_per_pixel(front_rb); 234 } 235 236 if (back_rb) { 237 attachments[i++] = __DRI_BUFFER_BACK_LEFT; 238 attachments[i++] = intel_bits_per_pixel(back_rb); 239 } 240 241 if ((depth_rb != NULL) && (stencil_rb != NULL)) { 242 attachments[i++] = __DRI_BUFFER_DEPTH_STENCIL; 243 attachments[i++] = intel_bits_per_pixel(depth_rb); 244 } else if (depth_rb != NULL) { 245 attachments[i++] = __DRI_BUFFER_DEPTH; 246 attachments[i++] = intel_bits_per_pixel(depth_rb); 247 } else if (stencil_rb != NULL) { 248 attachments[i++] = __DRI_BUFFER_STENCIL; 249 attachments[i++] = intel_bits_per_pixel(stencil_rb); 250 } 251 252 buffers = 253 (*screen->dri2.loader->getBuffersWithFormat)(drawable, 254 &drawable->w, 255 &drawable->h, 256 attachments, i / 2, 257 &count, 258 drawable->loaderPrivate); 259 } else if (screen->dri2.loader) { 260 i = 0; 261 if (intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT)) 262 attachments[i++] = __DRI_BUFFER_FRONT_LEFT; 263 if (intel_get_renderbuffer(fb, BUFFER_BACK_LEFT)) 264 attachments[i++] = __DRI_BUFFER_BACK_LEFT; 265 if (intel_get_renderbuffer(fb, BUFFER_DEPTH)) 266 attachments[i++] = __DRI_BUFFER_DEPTH; 267 if (intel_get_renderbuffer(fb, BUFFER_STENCIL)) 268 attachments[i++] = __DRI_BUFFER_STENCIL; 269 270 buffers = (*screen->dri2.loader->getBuffers)(drawable, 271 &drawable->w, 272 &drawable->h, 273 attachments, i, 274 &count, 275 drawable->loaderPrivate); 276 } 277 278 if (buffers == NULL) 279 return; 280 281 drawable->x = 0; 282 drawable->y = 0; 283 drawable->backX = 0; 284 drawable->backY = 0; 285 drawable->numClipRects = 1; 286 drawable->pClipRects[0].x1 = 0; 287 drawable->pClipRects[0].y1 = 0; 288 drawable->pClipRects[0].x2 = drawable->w; 289 drawable->pClipRects[0].y2 = drawable->h; 290 drawable->numBackClipRects = 1; 291 drawable->pBackClipRects[0].x1 = 0; 292 drawable->pBackClipRects[0].y1 = 0; 293 drawable->pBackClipRects[0].x2 = drawable->w; 294 drawable->pBackClipRects[0].y2 = drawable->h; 295 296 depth_region = NULL; 297 for (i = 0; i < count; i++) { 298 switch (buffers[i].attachment) { 299 case __DRI_BUFFER_FRONT_LEFT: 300 rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); 301 region_name = "dri2 front buffer"; 302 break; 303 304 case __DRI_BUFFER_FAKE_FRONT_LEFT: 305 rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); 306 region_name = "dri2 fake front buffer"; 307 break; 308 309 case __DRI_BUFFER_BACK_LEFT: 310 rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT); 311 region_name = "dri2 back buffer"; 312 break; 313 314 case __DRI_BUFFER_DEPTH: 315 rb = intel_get_renderbuffer(fb, BUFFER_DEPTH); 316 region_name = "dri2 depth buffer"; 317 break; 318 319 case __DRI_BUFFER_DEPTH_STENCIL: 320 rb = intel_get_renderbuffer(fb, BUFFER_DEPTH); 321 region_name = "dri2 depth / stencil buffer"; 322 break; 323 324 case __DRI_BUFFER_STENCIL: 325 rb = intel_get_renderbuffer(fb, BUFFER_STENCIL); 326 region_name = "dri2 stencil buffer"; 327 break; 328 329 case __DRI_BUFFER_ACCUM: 330 default: 331 fprintf(stderr, 332 "unhandled buffer attach event, attacment type %d\n", 333 buffers[i].attachment); 334 return; 335 } 336 337 if (rb == NULL) 338 continue; 339 340 if (rb->region && rb->region->name == buffers[i].name) 341 continue; 342 343 if (INTEL_DEBUG & DEBUG_DRI) 344 fprintf(stderr, 345 "attaching buffer %d, at %d, cpp %d, pitch %d\n", 346 buffers[i].name, buffers[i].attachment, 347 buffers[i].cpp, buffers[i].pitch); 348 349 if (buffers[i].attachment == __DRI_BUFFER_STENCIL && depth_region) { 350 if (INTEL_DEBUG & DEBUG_DRI) 351 fprintf(stderr, "(reusing depth buffer as stencil)\n"); 352 intel_region_reference(®ion, depth_region); 353 } 354 else 355 region = intel_region_alloc_for_handle(intel, buffers[i].cpp, 356 drawable->w, 357 drawable->h, 358 buffers[i].pitch / buffers[i].cpp, 359 buffers[i].name, 360 region_name); 361 362 if (buffers[i].attachment == __DRI_BUFFER_DEPTH) 363 depth_region = region; 364 365 intel_renderbuffer_set_region(rb, region); 366 intel_region_release(®ion); 367 368 if (buffers[i].attachment == __DRI_BUFFER_DEPTH_STENCIL) { 369 rb = intel_get_renderbuffer(fb, BUFFER_STENCIL); 370 if (rb != NULL) { 371 struct intel_region *stencil_region = NULL; 372 373 if (rb->region && rb->region->name == buffers[i].name) 374 continue; 375 376 intel_region_reference(&stencil_region, region); 377 intel_renderbuffer_set_region(rb, stencil_region); 378 intel_region_release(&stencil_region); 379 } 380 } 381 } 382 383 driUpdateFramebufferSize(&intel->ctx, drawable); 384} 385 386void 387intel_prepare_render(struct intel_context *intel) 388{ 389 __DRIcontext *driContext = intel->driContext; 390 __DRIdrawable *drawable; 391 392 drawable = driContext->driDrawablePriv; 393 if (drawable->dri2.stamp != driContext->dri2.draw_stamp) { 394 if (drawable->lastStamp != drawable->dri2.stamp) 395 intel_update_renderbuffers(driContext, drawable); 396 intel_draw_buffer(&intel->ctx, intel->ctx.DrawBuffer); 397 driContext->dri2.draw_stamp = drawable->dri2.stamp; 398 } 399 400 drawable = driContext->driReadablePriv; 401 if (drawable->dri2.stamp != driContext->dri2.read_stamp) { 402 if (drawable->lastStamp != drawable->dri2.stamp) 403 intel_update_renderbuffers(driContext, drawable); 404 driContext->dri2.read_stamp = drawable->dri2.stamp; 405 } 406} 407 408void 409intel_viewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h) 410{ 411 struct intel_context *intel = intel_context(ctx); 412 __DRIcontext *driContext = intel->driContext; 413 414 if (!intel->using_dri2_swapbuffers && 415 !intel->meta.internal_viewport_call && ctx->DrawBuffer->Name == 0) { 416 dri2InvalidateDrawable(driContext->driDrawablePriv); 417 dri2InvalidateDrawable(driContext->driReadablePriv); 418 } 419} 420 421static const struct dri_debug_control debug_control[] = { 422 { "tex", DEBUG_TEXTURE}, 423 { "state", DEBUG_STATE}, 424 { "ioctl", DEBUG_IOCTL}, 425 { "blit", DEBUG_BLIT}, 426 { "mip", DEBUG_MIPTREE}, 427 { "fall", DEBUG_FALLBACKS}, 428 { "verb", DEBUG_VERBOSE}, 429 { "bat", DEBUG_BATCH}, 430 { "pix", DEBUG_PIXEL}, 431 { "buf", DEBUG_BUFMGR}, 432 { "reg", DEBUG_REGION}, 433 { "fbo", DEBUG_FBO}, 434 { "lock", DEBUG_LOCK}, 435 { "sync", DEBUG_SYNC}, 436 { "prim", DEBUG_PRIMS }, 437 { "vert", DEBUG_VERTS }, 438 { "dri", DEBUG_DRI }, 439 { "dma", DEBUG_DMA }, 440 { "san", DEBUG_SANITY }, 441 { "sleep", DEBUG_SLEEP }, 442 { "stats", DEBUG_STATS }, 443 { "tile", DEBUG_TILE }, 444 { "sing", DEBUG_SINGLE_THREAD }, 445 { "thre", DEBUG_SINGLE_THREAD }, 446 { "wm", DEBUG_WM }, 447 { "glsl_force", DEBUG_GLSL_FORCE }, 448 { "urb", DEBUG_URB }, 449 { "vs", DEBUG_VS }, 450 { NULL, 0 } 451}; 452 453 454static void 455intelInvalidateState(GLcontext * ctx, GLuint new_state) 456{ 457 struct intel_context *intel = intel_context(ctx); 458 459 _swrast_InvalidateState(ctx, new_state); 460 _swsetup_InvalidateState(ctx, new_state); 461 _vbo_InvalidateState(ctx, new_state); 462 _tnl_InvalidateState(ctx, new_state); 463 _tnl_invalidate_vertex_state(ctx, new_state); 464 465 intel->NewGLState |= new_state; 466 467 if (intel->vtbl.invalidate_state) 468 intel->vtbl.invalidate_state( intel, new_state ); 469} 470 471void 472intel_flush(GLcontext *ctx, GLboolean needs_mi_flush) 473{ 474 struct intel_context *intel = intel_context(ctx); 475 __DRIcontext *driContext = intel->driContext; 476 477 if (intel->Fallback) 478 _swrast_flush(ctx); 479 480 if (intel->gen < 4) 481 INTEL_FIREVERTICES(intel); 482 483 if (intel->batch->map != intel->batch->ptr) 484 intel_batchbuffer_flush(intel->batch); 485 486 if ((ctx->DrawBuffer->Name == 0) && intel->front_buffer_dirty) { 487 __DRIscreen *const screen = intel->intelScreen->driScrnPriv; 488 489 if (screen->dri2.loader && 490 (screen->dri2.loader->base.version >= 2) 491 && (screen->dri2.loader->flushFrontBuffer != NULL) && 492 driContext->driDrawablePriv && 493 driContext->driDrawablePriv->loaderPrivate) { 494 (*screen->dri2.loader->flushFrontBuffer)(driContext->driDrawablePriv, 495 driContext->driDrawablePriv->loaderPrivate); 496 497 /* Only clear the dirty bit if front-buffer rendering is no longer 498 * enabled. This is done so that the dirty bit can only be set in 499 * glDrawBuffer. Otherwise the dirty bit would have to be set at 500 * each of N places that do rendering. This has worse performances, 501 * but it is much easier to get correct. 502 */ 503 if (!intel->is_front_buffer_rendering) { 504 intel->front_buffer_dirty = GL_FALSE; 505 } 506 } 507 } 508} 509 510void 511intelFlush(GLcontext * ctx) 512{ 513 intel_flush(ctx, GL_FALSE); 514} 515 516static void 517intel_glFlush(GLcontext *ctx) 518{ 519 struct intel_context *intel = intel_context(ctx); 520 521 intel_flush(ctx, GL_TRUE); 522 523 /* We're using glFlush as an indicator that a frame is done, which is 524 * what DRI2 does before calling SwapBuffers (and means we should catch 525 * people doing front-buffer rendering, as well).. 526 * 527 * Wait for the swapbuffers before the one we just emitted, so we don't 528 * get too many swaps outstanding for apps that are GPU-heavy but not 529 * CPU-heavy. 530 * 531 * Unfortunately, we don't have a handle to the batch containing the swap, 532 * and getting our hands on that doesn't seem worth it, so we just us the 533 * first batch we emitted after the last swap. 534 */ 535 if (!intel->using_dri2_swapbuffers && 536 intel->first_post_swapbuffers_batch != NULL) { 537 drm_intel_bo_wait_rendering(intel->first_post_swapbuffers_batch); 538 drm_intel_bo_unreference(intel->first_post_swapbuffers_batch); 539 intel->first_post_swapbuffers_batch = NULL; 540 } 541} 542 543void 544intelFinish(GLcontext * ctx) 545{ 546 struct gl_framebuffer *fb = ctx->DrawBuffer; 547 int i; 548 549 intelFlush(ctx); 550 551 for (i = 0; i < fb->_NumColorDrawBuffers; i++) { 552 struct intel_renderbuffer *irb; 553 554 irb = intel_renderbuffer(fb->_ColorDrawBuffers[i]); 555 556 if (irb && irb->region) 557 dri_bo_wait_rendering(irb->region->buffer); 558 } 559 if (fb->_DepthBuffer) { 560 /* XXX: Wait on buffer idle */ 561 } 562} 563 564void 565intelInitDriverFunctions(struct dd_function_table *functions) 566{ 567 _mesa_init_driver_functions(functions); 568 569 functions->Flush = intel_glFlush; 570 functions->Finish = intelFinish; 571 functions->GetString = intelGetString; 572 functions->UpdateState = intelInvalidateState; 573 574 intelInitTextureFuncs(functions); 575 intelInitTextureImageFuncs(functions); 576 intelInitTextureSubImageFuncs(functions); 577 intelInitTextureCopyImageFuncs(functions); 578 intelInitStateFuncs(functions); 579 intelInitClearFuncs(functions); 580 intelInitBufferFuncs(functions); 581 intelInitPixelFuncs(functions); 582 intelInitBufferObjectFuncs(functions); 583 intel_init_syncobj_functions(functions); 584} 585 586 587GLboolean 588intelInitContext(struct intel_context *intel, 589 const __GLcontextModes * mesaVis, 590 __DRIcontext * driContextPriv, 591 void *sharedContextPrivate, 592 struct dd_function_table *functions) 593{ 594 GLcontext *ctx = &intel->ctx; 595 GLcontext *shareCtx = (GLcontext *) sharedContextPrivate; 596 __DRIscreen *sPriv = driContextPriv->driScreenPriv; 597 struct intel_screen *intelScreen = sPriv->private; 598 int bo_reuse_mode; 599 600 /* we can't do anything without a connection to the device */ 601 if (intelScreen->bufmgr == NULL) 602 return GL_FALSE; 603 604 if (!_mesa_initialize_context(&intel->ctx, mesaVis, shareCtx, 605 functions, (void *) intel)) { 606 printf("%s: failed to init mesa context\n", __FUNCTION__); 607 return GL_FALSE; 608 } 609 610 driContextPriv->driverPrivate = intel; 611 intel->intelScreen = intelScreen; 612 intel->driContext = driContextPriv; 613 intel->driFd = sPriv->fd; 614 615 if (IS_GEN6(intel->intelScreen->deviceID)) { 616 intel->gen = 6; 617 intel->needs_ff_sync = GL_TRUE; 618 intel->has_luminance_srgb = GL_TRUE; 619 } else if (IS_GEN5(intel->intelScreen->deviceID)) { 620 intel->gen = 5; 621 intel->needs_ff_sync = GL_TRUE; 622 intel->has_luminance_srgb = GL_TRUE; 623 } else if (IS_965(intel->intelScreen->deviceID)) { 624 intel->gen = 4; 625 if (IS_G4X(intel->intelScreen->deviceID)) { 626 intel->has_luminance_srgb = GL_TRUE; 627 intel->is_g4x = GL_TRUE; 628 } 629 } else if (IS_9XX(intel->intelScreen->deviceID)) { 630 intel->gen = 3; 631 if (IS_945(intel->intelScreen->deviceID)) { 632 intel->is_945 = GL_TRUE; 633 } 634 } else { 635 intel->gen = 2; 636 } 637 638 driParseConfigFiles(&intel->optionCache, &intelScreen->optionCache, 639 sPriv->myNum, (intel->gen >= 4) ? "i965" : "i915"); 640 if (intelScreen->deviceID == PCI_CHIP_I865_G) 641 intel->maxBatchSize = 4096; 642 else 643 intel->maxBatchSize = BATCH_SZ; 644 645 intel->bufmgr = intelScreen->bufmgr; 646 647 bo_reuse_mode = driQueryOptioni(&intel->optionCache, "bo_reuse"); 648 switch (bo_reuse_mode) { 649 case DRI_CONF_BO_REUSE_DISABLED: 650 break; 651 case DRI_CONF_BO_REUSE_ALL: 652 intel_bufmgr_gem_enable_reuse(intel->bufmgr); 653 break; 654 } 655 656 /* This doesn't yet catch all non-conformant rendering, but it's a 657 * start. 658 */ 659 if (getenv("INTEL_STRICT_CONFORMANCE")) { 660 unsigned int value = atoi(getenv("INTEL_STRICT_CONFORMANCE")); 661 if (value > 0) { 662 intel->conformance_mode = value; 663 } 664 else { 665 intel->conformance_mode = 1; 666 } 667 } 668 669 if (intel->conformance_mode > 0) { 670 ctx->Const.MinLineWidth = 1.0; 671 ctx->Const.MinLineWidthAA = 1.0; 672 ctx->Const.MaxLineWidth = 1.0; 673 ctx->Const.MaxLineWidthAA = 1.0; 674 ctx->Const.LineWidthGranularity = 1.0; 675 } 676 else { 677 ctx->Const.MinLineWidth = 1.0; 678 ctx->Const.MinLineWidthAA = 1.0; 679 ctx->Const.MaxLineWidth = 5.0; 680 ctx->Const.MaxLineWidthAA = 5.0; 681 ctx->Const.LineWidthGranularity = 0.5; 682 } 683 684 ctx->Const.MinPointSize = 1.0; 685 ctx->Const.MinPointSizeAA = 1.0; 686 ctx->Const.MaxPointSize = 255.0; 687 ctx->Const.MaxPointSizeAA = 3.0; 688 ctx->Const.PointSizeGranularity = 1.0; 689 690 /* reinitialize the context point state. 691 * It depend on constants in __GLcontextRec::Const 692 */ 693 _mesa_init_point(ctx); 694 695 meta_init_metaops(ctx, &intel->meta); 696 ctx->Const.MaxColorAttachments = 4; /* XXX FBO: review this */ 697 if (intel->gen >= 4) { 698 if (MAX_WIDTH > 8192) 699 ctx->Const.MaxRenderbufferSize = 8192; 700 } else { 701 if (MAX_WIDTH > 2048) 702 ctx->Const.MaxRenderbufferSize = 2048; 703 } 704 705 /* Initialize the software rasterizer and helper modules. */ 706 _swrast_CreateContext(ctx); 707 _vbo_CreateContext(ctx); 708 _tnl_CreateContext(ctx); 709 _swsetup_CreateContext(ctx); 710 711 /* Configure swrast to match hardware characteristics: */ 712 _swrast_allow_pixel_fog(ctx, GL_FALSE); 713 _swrast_allow_vertex_fog(ctx, GL_TRUE); 714 715 _mesa_meta_init(ctx); 716 717 intel->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24; 718 intel->hw_stipple = 1; 719 720 /* XXX FBO: this doesn't seem to be used anywhere */ 721 switch (mesaVis->depthBits) { 722 case 0: /* what to do in this case? */ 723 case 16: 724 intel->polygon_offset_scale = 1.0; 725 break; 726 case 24: 727 intel->polygon_offset_scale = 2.0; /* req'd to pass glean */ 728 break; 729 default: 730 assert(0); 731 break; 732 } 733 734 if (intel->gen >= 4) 735 intel->polygon_offset_scale /= 0xffff; 736 737 intel->RenderIndex = ~0; 738 739 intelInitExtensions(ctx); 740 741 INTEL_DEBUG = driParseDebugString(getenv("INTEL_DEBUG"), debug_control); 742 if (INTEL_DEBUG & DEBUG_BUFMGR) 743 dri_bufmgr_set_debug(intel->bufmgr, GL_TRUE); 744 745 intel->batch = intel_batchbuffer_alloc(intel); 746 747 intel_fbo_init(intel); 748 749 if (intel->ctx.Mesa_DXTn) { 750 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc"); 751 _mesa_enable_extension(ctx, "GL_S3_s3tc"); 752 } 753 else if (driQueryOptionb(&intel->optionCache, "force_s3tc_enable")) { 754 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc"); 755 } 756 intel->use_texture_tiling = driQueryOptionb(&intel->optionCache, 757 "texture_tiling"); 758 intel->use_early_z = driQueryOptionb(&intel->optionCache, "early_z"); 759 760 intel->prim.primitive = ~0; 761 762 /* Force all software fallbacks */ 763 if (driQueryOptionb(&intel->optionCache, "no_rast")) { 764 fprintf(stderr, "disabling 3D rasterization\n"); 765 intel->no_rast = 1; 766 } 767 768 if (driQueryOptionb(&intel->optionCache, "always_flush_batch")) { 769 fprintf(stderr, "flushing batchbuffer before/after each draw call\n"); 770 intel->always_flush_batch = 1; 771 } 772 773 if (driQueryOptionb(&intel->optionCache, "always_flush_cache")) { 774 fprintf(stderr, "flushing GPU caches before/after each draw call\n"); 775 intel->always_flush_cache = 1; 776 } 777 778 /* Disable all hardware rendering (skip emitting batches and fences/waits 779 * to the kernel) 780 */ 781 intel->no_hw = getenv("INTEL_NO_HW") != NULL; 782 783 return GL_TRUE; 784} 785 786void 787intelDestroyContext(__DRIcontext * driContextPriv) 788{ 789 struct intel_context *intel = 790 (struct intel_context *) driContextPriv->driverPrivate; 791 792 assert(intel); /* should never be null */ 793 if (intel) { 794 GLboolean release_texture_heaps; 795 796 INTEL_FIREVERTICES(intel); 797 798 _mesa_meta_free(&intel->ctx); 799 800 meta_destroy_metaops(&intel->meta); 801 802 intel->vtbl.destroy(intel); 803 804 release_texture_heaps = (intel->ctx.Shared->RefCount == 1); 805 _swsetup_DestroyContext(&intel->ctx); 806 _tnl_DestroyContext(&intel->ctx); 807 _vbo_DestroyContext(&intel->ctx); 808 809 _swrast_DestroyContext(&intel->ctx); 810 intel->Fallback = 0x0; /* don't call _swrast_Flush later */ 811 812 intel_batchbuffer_free(intel->batch); 813 intel->batch = NULL; 814 815 free(intel->prim.vb); 816 intel->prim.vb = NULL; 817 dri_bo_unreference(intel->prim.vb_bo); 818 intel->prim.vb_bo = NULL; 819 dri_bo_unreference(intel->first_post_swapbuffers_batch); 820 intel->first_post_swapbuffers_batch = NULL; 821 822 if (release_texture_heaps) { 823 /* Nothing is currently done here to free texture heaps; 824 * but we're not using the texture heap utilities, so I 825 * rather think we shouldn't. I've taken a look, and can't 826 * find any private texture data hanging around anywhere, but 827 * I'm not yet certain there isn't any at all... 828 */ 829 /* if (INTEL_DEBUG & DEBUG_TEXTURE) 830 fprintf(stderr, "do something to free texture heaps\n"); 831 */ 832 } 833 834 driDestroyOptionCache(&intel->optionCache); 835 836 /* free the Mesa context */ 837 _mesa_free_context_data(&intel->ctx); 838 839 FREE(intel); 840 driContextPriv->driverPrivate = NULL; 841 } 842} 843 844GLboolean 845intelUnbindContext(__DRIcontext * driContextPriv) 846{ 847 return GL_TRUE; 848} 849 850GLboolean 851intelMakeCurrent(__DRIcontext * driContextPriv, 852 __DRIdrawable * driDrawPriv, 853 __DRIdrawable * driReadPriv) 854{ 855 struct intel_context *intel; 856 GET_CURRENT_CONTEXT(curCtx); 857 858 if (driContextPriv) 859 intel = (struct intel_context *) driContextPriv->driverPrivate; 860 else 861 intel = NULL; 862 863 /* According to the glXMakeCurrent() man page: "Pending commands to 864 * the previous context, if any, are flushed before it is released." 865 * But only flush if we're actually changing contexts. 866 */ 867 if (intel_context(curCtx) && intel_context(curCtx) != intel) { 868 _mesa_flush(curCtx); 869 } 870 871 if (driContextPriv) { 872 struct gl_framebuffer *fb = driDrawPriv->driverPrivate; 873 struct gl_framebuffer *readFb = driReadPriv->driverPrivate; 874 875 driContextPriv->dri2.draw_stamp = driDrawPriv->dri2.stamp - 1; 876 driContextPriv->dri2.read_stamp = driReadPriv->dri2.stamp - 1; 877 intel_prepare_render(intel); 878 _mesa_make_current(&intel->ctx, fb, readFb); 879 } 880 else { 881 _mesa_make_current(NULL, NULL, NULL); 882 } 883 884 return GL_TRUE; 885} 886