intel_context.c revision 11fce3a821b64e1d53f893e82e5c92f549f3ab1d
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/fbobject.h" 33#include "main/framebuffer.h" 34#include "main/imports.h" 35#include "main/points.h" 36 37#include "swrast/swrast.h" 38#include "swrast_setup/swrast_setup.h" 39#include "tnl/tnl.h" 40#include "drivers/common/driverfuncs.h" 41#include "drivers/common/meta.h" 42 43#include "intel_chipset.h" 44#include "intel_buffers.h" 45#include "intel_tex.h" 46#include "intel_batchbuffer.h" 47#include "intel_clear.h" 48#include "intel_extensions.h" 49#include "intel_pixel.h" 50#include "intel_regions.h" 51#include "intel_buffer_objects.h" 52#include "intel_fbo.h" 53#include "intel_bufmgr.h" 54#include "intel_screen.h" 55 56#include "drirenderbuffer.h" 57#include "utils.h" 58 59 60#ifndef INTEL_DEBUG 61int INTEL_DEBUG = (0); 62#endif 63 64 65#define DRIVER_DATE "20100330 DEVELOPMENT" 66#define DRIVER_DATE_GEM "GEM " DRIVER_DATE 67 68 69static const GLubyte * 70intelGetString(GLcontext * ctx, GLenum name) 71{ 72 const struct intel_context *const intel = intel_context(ctx); 73 const char *chipset; 74 static char buffer[128]; 75 76 switch (name) { 77 case GL_VENDOR: 78 return (GLubyte *) "Tungsten Graphics, Inc"; 79 break; 80 81 case GL_RENDERER: 82 switch (intel->intelScreen->deviceID) { 83 case PCI_CHIP_845_G: 84 chipset = "Intel(R) 845G"; 85 break; 86 case PCI_CHIP_I830_M: 87 chipset = "Intel(R) 830M"; 88 break; 89 case PCI_CHIP_I855_GM: 90 chipset = "Intel(R) 852GM/855GM"; 91 break; 92 case PCI_CHIP_I865_G: 93 chipset = "Intel(R) 865G"; 94 break; 95 case PCI_CHIP_I915_G: 96 chipset = "Intel(R) 915G"; 97 break; 98 case PCI_CHIP_E7221_G: 99 chipset = "Intel (R) E7221G (i915)"; 100 break; 101 case PCI_CHIP_I915_GM: 102 chipset = "Intel(R) 915GM"; 103 break; 104 case PCI_CHIP_I945_G: 105 chipset = "Intel(R) 945G"; 106 break; 107 case PCI_CHIP_I945_GM: 108 chipset = "Intel(R) 945GM"; 109 break; 110 case PCI_CHIP_I945_GME: 111 chipset = "Intel(R) 945GME"; 112 break; 113 case PCI_CHIP_G33_G: 114 chipset = "Intel(R) G33"; 115 break; 116 case PCI_CHIP_Q35_G: 117 chipset = "Intel(R) Q35"; 118 break; 119 case PCI_CHIP_Q33_G: 120 chipset = "Intel(R) Q33"; 121 break; 122 case PCI_CHIP_IGD_GM: 123 case PCI_CHIP_IGD_G: 124 chipset = "Intel(R) IGD"; 125 break; 126 case PCI_CHIP_I965_Q: 127 chipset = "Intel(R) 965Q"; 128 break; 129 case PCI_CHIP_I965_G: 130 case PCI_CHIP_I965_G_1: 131 chipset = "Intel(R) 965G"; 132 break; 133 case PCI_CHIP_I946_GZ: 134 chipset = "Intel(R) 946GZ"; 135 break; 136 case PCI_CHIP_I965_GM: 137 chipset = "Intel(R) 965GM"; 138 break; 139 case PCI_CHIP_I965_GME: 140 chipset = "Intel(R) 965GME/GLE"; 141 break; 142 case PCI_CHIP_GM45_GM: 143 chipset = "Mobile Intel® GM45 Express Chipset"; 144 break; 145 case PCI_CHIP_IGD_E_G: 146 chipset = "Intel(R) Integrated Graphics Device"; 147 break; 148 case PCI_CHIP_G45_G: 149 chipset = "Intel(R) G45/G43"; 150 break; 151 case PCI_CHIP_Q45_G: 152 chipset = "Intel(R) Q45/Q43"; 153 break; 154 case PCI_CHIP_G41_G: 155 chipset = "Intel(R) G41"; 156 break; 157 case PCI_CHIP_B43_G: 158 chipset = "Intel(R) B43"; 159 break; 160 case PCI_CHIP_ILD_G: 161 chipset = "Intel(R) Ironlake Desktop"; 162 break; 163 case PCI_CHIP_ILM_G: 164 chipset = "Intel(R) Ironlake Mobile"; 165 break; 166 default: 167 chipset = "Unknown Intel Chipset"; 168 break; 169 } 170 171 (void) driGetRendererString(buffer, chipset, DRIVER_DATE_GEM, 0); 172 return (GLubyte *) buffer; 173 174 default: 175 return NULL; 176 } 177} 178 179static void 180intel_flush_front(GLcontext *ctx) 181{ 182 struct intel_context *intel = intel_context(ctx); 183 __DRIcontext *driContext = intel->driContext; 184 __DRIscreen *const screen = intel->intelScreen->driScrnPriv; 185 186 if ((ctx->DrawBuffer->Name == 0) && intel->front_buffer_dirty) { 187 if (screen->dri2.loader && 188 (screen->dri2.loader->base.version >= 2) 189 && (screen->dri2.loader->flushFrontBuffer != NULL) && 190 driContext->driDrawablePriv && 191 driContext->driDrawablePriv->loaderPrivate) { 192 (*screen->dri2.loader->flushFrontBuffer)(driContext->driDrawablePriv, 193 driContext->driDrawablePriv->loaderPrivate); 194 195 /* We set the dirty bit in intel_prepare_render() if we're 196 * front buffer rendering once we get there. 197 */ 198 intel->front_buffer_dirty = GL_FALSE; 199 } 200 } 201} 202 203static unsigned 204intel_bits_per_pixel(const struct intel_renderbuffer *rb) 205{ 206 return _mesa_get_format_bytes(rb->Base.Format) * 8; 207} 208 209void 210intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable) 211{ 212 struct gl_framebuffer *fb = drawable->driverPrivate; 213 struct intel_renderbuffer *rb; 214 struct intel_region *region, *depth_region; 215 struct intel_context *intel = context->driverPrivate; 216 struct intel_renderbuffer *front_rb, *back_rb, *depth_rb, *stencil_rb; 217 __DRIbuffer *buffers = NULL; 218 __DRIscreen *screen; 219 int i, count; 220 unsigned int attachments[10]; 221 const char *region_name; 222 223 /* If we're rendering to the fake front buffer, make sure all the 224 * pending drawing has landed on the real front buffer. Otherwise 225 * when we eventually get to DRI2GetBuffersWithFormat the stale 226 * real front buffer contents will get copied to the new fake front 227 * buffer. 228 */ 229 if (intel->is_front_buffer_rendering) { 230 intel_flush(&intel->ctx); 231 intel_flush_front(&intel->ctx); 232 } 233 234 /* Set this up front, so that in case our buffers get invalidated 235 * while we're getting new buffers, we don't clobber the stamp and 236 * thus ignore the invalidate. */ 237 drawable->lastStamp = drawable->dri2.stamp; 238 239 if (INTEL_DEBUG & DEBUG_DRI) 240 fprintf(stderr, "enter %s, drawable %p\n", __func__, drawable); 241 242 screen = intel->intelScreen->driScrnPriv; 243 244 if (screen->dri2.loader 245 && (screen->dri2.loader->base.version > 2) 246 && (screen->dri2.loader->getBuffersWithFormat != NULL)) { 247 248 front_rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); 249 back_rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT); 250 depth_rb = intel_get_renderbuffer(fb, BUFFER_DEPTH); 251 stencil_rb = intel_get_renderbuffer(fb, BUFFER_STENCIL); 252 253 i = 0; 254 if ((intel->is_front_buffer_rendering || 255 intel->is_front_buffer_reading || 256 !back_rb) && front_rb) { 257 attachments[i++] = __DRI_BUFFER_FRONT_LEFT; 258 attachments[i++] = intel_bits_per_pixel(front_rb); 259 } 260 261 if (back_rb) { 262 attachments[i++] = __DRI_BUFFER_BACK_LEFT; 263 attachments[i++] = intel_bits_per_pixel(back_rb); 264 } 265 266 if ((depth_rb != NULL) && (stencil_rb != NULL)) { 267 attachments[i++] = __DRI_BUFFER_DEPTH_STENCIL; 268 attachments[i++] = intel_bits_per_pixel(depth_rb); 269 } else if (depth_rb != NULL) { 270 attachments[i++] = __DRI_BUFFER_DEPTH; 271 attachments[i++] = intel_bits_per_pixel(depth_rb); 272 } else if (stencil_rb != NULL) { 273 attachments[i++] = __DRI_BUFFER_STENCIL; 274 attachments[i++] = intel_bits_per_pixel(stencil_rb); 275 } 276 277 buffers = 278 (*screen->dri2.loader->getBuffersWithFormat)(drawable, 279 &drawable->w, 280 &drawable->h, 281 attachments, i / 2, 282 &count, 283 drawable->loaderPrivate); 284 } else if (screen->dri2.loader) { 285 i = 0; 286 if (intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT)) 287 attachments[i++] = __DRI_BUFFER_FRONT_LEFT; 288 if (intel_get_renderbuffer(fb, BUFFER_BACK_LEFT)) 289 attachments[i++] = __DRI_BUFFER_BACK_LEFT; 290 if (intel_get_renderbuffer(fb, BUFFER_DEPTH)) 291 attachments[i++] = __DRI_BUFFER_DEPTH; 292 if (intel_get_renderbuffer(fb, BUFFER_STENCIL)) 293 attachments[i++] = __DRI_BUFFER_STENCIL; 294 295 buffers = (*screen->dri2.loader->getBuffers)(drawable, 296 &drawable->w, 297 &drawable->h, 298 attachments, i, 299 &count, 300 drawable->loaderPrivate); 301 } 302 303 if (buffers == NULL) 304 return; 305 306 drawable->x = 0; 307 drawable->y = 0; 308 drawable->backX = 0; 309 drawable->backY = 0; 310 drawable->numClipRects = 1; 311 drawable->pClipRects[0].x1 = 0; 312 drawable->pClipRects[0].y1 = 0; 313 drawable->pClipRects[0].x2 = drawable->w; 314 drawable->pClipRects[0].y2 = drawable->h; 315 drawable->numBackClipRects = 1; 316 drawable->pBackClipRects[0].x1 = 0; 317 drawable->pBackClipRects[0].y1 = 0; 318 drawable->pBackClipRects[0].x2 = drawable->w; 319 drawable->pBackClipRects[0].y2 = drawable->h; 320 321 depth_region = NULL; 322 for (i = 0; i < count; i++) { 323 switch (buffers[i].attachment) { 324 case __DRI_BUFFER_FRONT_LEFT: 325 rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); 326 region_name = "dri2 front buffer"; 327 break; 328 329 case __DRI_BUFFER_FAKE_FRONT_LEFT: 330 rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); 331 region_name = "dri2 fake front buffer"; 332 break; 333 334 case __DRI_BUFFER_BACK_LEFT: 335 rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT); 336 region_name = "dri2 back buffer"; 337 break; 338 339 case __DRI_BUFFER_DEPTH: 340 rb = intel_get_renderbuffer(fb, BUFFER_DEPTH); 341 region_name = "dri2 depth buffer"; 342 break; 343 344 case __DRI_BUFFER_DEPTH_STENCIL: 345 rb = intel_get_renderbuffer(fb, BUFFER_DEPTH); 346 region_name = "dri2 depth / stencil buffer"; 347 break; 348 349 case __DRI_BUFFER_STENCIL: 350 rb = intel_get_renderbuffer(fb, BUFFER_STENCIL); 351 region_name = "dri2 stencil buffer"; 352 break; 353 354 case __DRI_BUFFER_ACCUM: 355 default: 356 fprintf(stderr, 357 "unhandled buffer attach event, attacment type %d\n", 358 buffers[i].attachment); 359 return; 360 } 361 362 if (rb == NULL) 363 continue; 364 365 if (rb->region && rb->region->name == buffers[i].name) 366 continue; 367 368 if (INTEL_DEBUG & DEBUG_DRI) 369 fprintf(stderr, 370 "attaching buffer %d, at %d, cpp %d, pitch %d\n", 371 buffers[i].name, buffers[i].attachment, 372 buffers[i].cpp, buffers[i].pitch); 373 374 if (buffers[i].attachment == __DRI_BUFFER_STENCIL && depth_region) { 375 if (INTEL_DEBUG & DEBUG_DRI) 376 fprintf(stderr, "(reusing depth buffer as stencil)\n"); 377 intel_region_reference(®ion, depth_region); 378 } 379 else 380 region = intel_region_alloc_for_handle(intel, buffers[i].cpp, 381 drawable->w, 382 drawable->h, 383 buffers[i].pitch / buffers[i].cpp, 384 buffers[i].name, 385 region_name); 386 387 if (buffers[i].attachment == __DRI_BUFFER_DEPTH) 388 depth_region = region; 389 390 intel_renderbuffer_set_region(intel, rb, region); 391 intel_region_release(®ion); 392 393 if (buffers[i].attachment == __DRI_BUFFER_DEPTH_STENCIL) { 394 rb = intel_get_renderbuffer(fb, BUFFER_STENCIL); 395 if (rb != NULL) { 396 struct intel_region *stencil_region = NULL; 397 398 if (rb->region && rb->region->name == buffers[i].name) 399 continue; 400 401 intel_region_reference(&stencil_region, region); 402 intel_renderbuffer_set_region(intel, rb, stencil_region); 403 intel_region_release(&stencil_region); 404 } 405 } 406 } 407 408 driUpdateFramebufferSize(&intel->ctx, drawable); 409} 410 411/** 412 * intel_prepare_render should be called anywhere that curent read/drawbuffer 413 * state is required. 414 */ 415void 416intel_prepare_render(struct intel_context *intel) 417{ 418 __DRIcontext *driContext = intel->driContext; 419 __DRIdrawable *drawable; 420 421 drawable = driContext->driDrawablePriv; 422 if (drawable && drawable->dri2.stamp != driContext->dri2.draw_stamp) { 423 if (drawable->lastStamp != drawable->dri2.stamp) 424 intel_update_renderbuffers(driContext, drawable); 425 intel_draw_buffer(&intel->ctx, intel->ctx.DrawBuffer); 426 driContext->dri2.draw_stamp = drawable->dri2.stamp; 427 } 428 429 drawable = driContext->driReadablePriv; 430 if (drawable && drawable->dri2.stamp != driContext->dri2.read_stamp) { 431 if (drawable->lastStamp != drawable->dri2.stamp) 432 intel_update_renderbuffers(driContext, drawable); 433 driContext->dri2.read_stamp = drawable->dri2.stamp; 434 } 435 436 /* If we're currently rendering to the front buffer, the rendering 437 * that will happen next will probably dirty the front buffer. So 438 * mark it as dirty here. 439 */ 440 if (intel->is_front_buffer_rendering) 441 intel->front_buffer_dirty = GL_TRUE; 442 443 /* Wait for the swapbuffers before the one we just emitted, so we 444 * don't get too many swaps outstanding for apps that are GPU-heavy 445 * but not CPU-heavy. 446 * 447 * We're using intelDRI2Flush (called from the loader before 448 * swapbuffer) and glFlush (for front buffer rendering) as the 449 * indicator that a frame is done and then throttle when we get 450 * here as we prepare to render the next frame. At this point for 451 * round trips for swap/copy and getting new buffers are done and 452 * we'll spend less time waiting on the GPU. 453 * 454 * Unfortunately, we don't have a handle to the batch containing 455 * the swap, and getting our hands on that doesn't seem worth it, 456 * so we just us the first batch we emitted after the last swap. 457 */ 458 if (intel->need_throttle && intel->first_post_swapbuffers_batch) { 459 drm_intel_bo_wait_rendering(intel->first_post_swapbuffers_batch); 460 drm_intel_bo_unreference(intel->first_post_swapbuffers_batch); 461 intel->first_post_swapbuffers_batch = NULL; 462 intel->need_throttle = GL_FALSE; 463 } 464} 465 466static void 467intel_viewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h) 468{ 469 struct intel_context *intel = intel_context(ctx); 470 __DRIcontext *driContext = intel->driContext; 471 472 if (intel->saved_viewport) 473 intel->saved_viewport(ctx, x, y, w, h); 474 475 if (!intel->meta.internal_viewport_call && ctx->DrawBuffer->Name == 0) { 476 dri2InvalidateDrawable(driContext->driDrawablePriv); 477 dri2InvalidateDrawable(driContext->driReadablePriv); 478 } 479} 480 481static const struct dri_debug_control debug_control[] = { 482 { "tex", DEBUG_TEXTURE}, 483 { "state", DEBUG_STATE}, 484 { "ioctl", DEBUG_IOCTL}, 485 { "blit", DEBUG_BLIT}, 486 { "mip", DEBUG_MIPTREE}, 487 { "fall", DEBUG_FALLBACKS}, 488 { "verb", DEBUG_VERBOSE}, 489 { "bat", DEBUG_BATCH}, 490 { "pix", DEBUG_PIXEL}, 491 { "buf", DEBUG_BUFMGR}, 492 { "reg", DEBUG_REGION}, 493 { "fbo", DEBUG_FBO}, 494 { "gs", DEBUG_GS}, 495 { "sync", DEBUG_SYNC}, 496 { "prim", DEBUG_PRIMS }, 497 { "vert", DEBUG_VERTS }, 498 { "dri", DEBUG_DRI }, 499 { "sf", DEBUG_SF }, 500 { "san", DEBUG_SANITY }, 501 { "sleep", DEBUG_SLEEP }, 502 { "stats", DEBUG_STATS }, 503 { "tile", DEBUG_TILE }, 504 { "sing", DEBUG_SINGLE_THREAD }, 505 { "thre", DEBUG_SINGLE_THREAD }, 506 { "wm", DEBUG_WM }, 507 { "glsl_force", DEBUG_GLSL_FORCE }, 508 { "urb", DEBUG_URB }, 509 { "vs", DEBUG_VS }, 510 { "clip", DEBUG_CLIP }, 511 { NULL, 0 } 512}; 513 514 515static void 516intelInvalidateState(GLcontext * ctx, GLuint new_state) 517{ 518 struct intel_context *intel = intel_context(ctx); 519 520 _swrast_InvalidateState(ctx, new_state); 521 _swsetup_InvalidateState(ctx, new_state); 522 _vbo_InvalidateState(ctx, new_state); 523 _tnl_InvalidateState(ctx, new_state); 524 _tnl_invalidate_vertex_state(ctx, new_state); 525 526 intel->NewGLState |= new_state; 527 528 if (intel->vtbl.invalidate_state) 529 intel->vtbl.invalidate_state( intel, new_state ); 530} 531 532void 533intel_flush(GLcontext *ctx) 534{ 535 struct intel_context *intel = intel_context(ctx); 536 537 if (intel->Fallback) 538 _swrast_flush(ctx); 539 540 if (intel->gen < 4) 541 INTEL_FIREVERTICES(intel); 542 543 if (intel->batch->map != intel->batch->ptr) 544 intel_batchbuffer_flush(intel->batch); 545} 546 547static void 548intel_glFlush(GLcontext *ctx) 549{ 550 struct intel_context *intel = intel_context(ctx); 551 552 intel_flush(ctx); 553 intel_flush_front(ctx); 554 intel->need_throttle = GL_TRUE; 555} 556 557void 558intelFinish(GLcontext * ctx) 559{ 560 struct gl_framebuffer *fb = ctx->DrawBuffer; 561 int i; 562 563 intel_flush(ctx); 564 intel_flush_front(ctx); 565 566 for (i = 0; i < fb->_NumColorDrawBuffers; i++) { 567 struct intel_renderbuffer *irb; 568 569 irb = intel_renderbuffer(fb->_ColorDrawBuffers[i]); 570 571 if (irb && irb->region) 572 drm_intel_bo_wait_rendering(irb->region->buffer); 573 } 574 if (fb->_DepthBuffer) { 575 /* XXX: Wait on buffer idle */ 576 } 577} 578 579void 580intelInitDriverFunctions(struct dd_function_table *functions) 581{ 582 _mesa_init_driver_functions(functions); 583 584 functions->Flush = intel_glFlush; 585 functions->Finish = intelFinish; 586 functions->GetString = intelGetString; 587 functions->UpdateState = intelInvalidateState; 588 589 intelInitTextureFuncs(functions); 590 intelInitTextureImageFuncs(functions); 591 intelInitTextureSubImageFuncs(functions); 592 intelInitTextureCopyImageFuncs(functions); 593 intelInitStateFuncs(functions); 594 intelInitClearFuncs(functions); 595 intelInitBufferFuncs(functions); 596 intelInitPixelFuncs(functions); 597 intelInitBufferObjectFuncs(functions); 598 intel_init_syncobj_functions(functions); 599} 600 601 602GLboolean 603intelInitContext(struct intel_context *intel, 604 int api, 605 const __GLcontextModes * mesaVis, 606 __DRIcontext * driContextPriv, 607 void *sharedContextPrivate, 608 struct dd_function_table *functions) 609{ 610 GLcontext *ctx = &intel->ctx; 611 GLcontext *shareCtx = (GLcontext *) sharedContextPrivate; 612 __DRIscreen *sPriv = driContextPriv->driScreenPriv; 613 struct intel_screen *intelScreen = sPriv->private; 614 int bo_reuse_mode; 615 __GLcontextModes visual; 616 617 /* we can't do anything without a connection to the device */ 618 if (intelScreen->bufmgr == NULL) 619 return GL_FALSE; 620 621 /* Can't rely on invalidate events, fall back to glViewport hack */ 622 if (!driContextPriv->driScreenPriv->dri2.useInvalidate) { 623 intel->saved_viewport = functions->Viewport; 624 functions->Viewport = intel_viewport; 625 } 626 627 if (mesaVis == NULL) { 628 memset(&visual, 0, sizeof visual); 629 mesaVis = &visual; 630 } 631 632 if (!_mesa_initialize_context_for_api(&intel->ctx, api, mesaVis, shareCtx, 633 functions, (void *) intel)) { 634 printf("%s: failed to init mesa context\n", __FUNCTION__); 635 return GL_FALSE; 636 } 637 638 driContextPriv->driverPrivate = intel; 639 intel->intelScreen = intelScreen; 640 intel->driContext = driContextPriv; 641 intel->driFd = sPriv->fd; 642 643 intel->has_xrgb_textures = GL_TRUE; 644 if (IS_GEN6(intel->intelScreen->deviceID)) { 645 intel->gen = 6; 646 intel->needs_ff_sync = GL_TRUE; 647 intel->has_luminance_srgb = GL_TRUE; 648 } else if (IS_GEN5(intel->intelScreen->deviceID)) { 649 intel->gen = 5; 650 intel->needs_ff_sync = GL_TRUE; 651 intel->has_luminance_srgb = GL_TRUE; 652 } else if (IS_965(intel->intelScreen->deviceID)) { 653 intel->gen = 4; 654 if (IS_G4X(intel->intelScreen->deviceID)) { 655 intel->has_luminance_srgb = GL_TRUE; 656 intel->is_g4x = GL_TRUE; 657 } 658 } else if (IS_9XX(intel->intelScreen->deviceID)) { 659 intel->gen = 3; 660 if (IS_945(intel->intelScreen->deviceID)) { 661 intel->is_945 = GL_TRUE; 662 } 663 } else { 664 intel->gen = 2; 665 if (intel->intelScreen->deviceID == PCI_CHIP_I830_M || 666 intel->intelScreen->deviceID == PCI_CHIP_845_G) { 667 intel->has_xrgb_textures = GL_FALSE; 668 } 669 } 670 671 driParseConfigFiles(&intel->optionCache, &intelScreen->optionCache, 672 sPriv->myNum, (intel->gen >= 4) ? "i965" : "i915"); 673 if (intelScreen->deviceID == PCI_CHIP_I865_G) 674 intel->maxBatchSize = 4096; 675 else 676 intel->maxBatchSize = BATCH_SZ; 677 678 intel->bufmgr = intelScreen->bufmgr; 679 680 bo_reuse_mode = driQueryOptioni(&intel->optionCache, "bo_reuse"); 681 switch (bo_reuse_mode) { 682 case DRI_CONF_BO_REUSE_DISABLED: 683 break; 684 case DRI_CONF_BO_REUSE_ALL: 685 intel_bufmgr_gem_enable_reuse(intel->bufmgr); 686 break; 687 } 688 689 /* This doesn't yet catch all non-conformant rendering, but it's a 690 * start. 691 */ 692 if (getenv("INTEL_STRICT_CONFORMANCE")) { 693 unsigned int value = atoi(getenv("INTEL_STRICT_CONFORMANCE")); 694 if (value > 0) { 695 intel->conformance_mode = value; 696 } 697 else { 698 intel->conformance_mode = 1; 699 } 700 } 701 702 if (intel->conformance_mode > 0) { 703 ctx->Const.MinLineWidth = 1.0; 704 ctx->Const.MinLineWidthAA = 1.0; 705 ctx->Const.MaxLineWidth = 1.0; 706 ctx->Const.MaxLineWidthAA = 1.0; 707 ctx->Const.LineWidthGranularity = 1.0; 708 } 709 else { 710 ctx->Const.MinLineWidth = 1.0; 711 ctx->Const.MinLineWidthAA = 1.0; 712 ctx->Const.MaxLineWidth = 5.0; 713 ctx->Const.MaxLineWidthAA = 5.0; 714 ctx->Const.LineWidthGranularity = 0.5; 715 } 716 717 ctx->Const.MinPointSize = 1.0; 718 ctx->Const.MinPointSizeAA = 1.0; 719 ctx->Const.MaxPointSize = 255.0; 720 ctx->Const.MaxPointSizeAA = 3.0; 721 ctx->Const.PointSizeGranularity = 1.0; 722 723 /* reinitialize the context point state. 724 * It depend on constants in __GLcontextRec::Const 725 */ 726 _mesa_init_point(ctx); 727 728 meta_init_metaops(ctx, &intel->meta); 729 if (intel->gen >= 4) { 730 if (MAX_WIDTH > 8192) 731 ctx->Const.MaxRenderbufferSize = 8192; 732 } else { 733 if (MAX_WIDTH > 2048) 734 ctx->Const.MaxRenderbufferSize = 2048; 735 } 736 737 /* Initialize the software rasterizer and helper modules. */ 738 _swrast_CreateContext(ctx); 739 _vbo_CreateContext(ctx); 740 _tnl_CreateContext(ctx); 741 _swsetup_CreateContext(ctx); 742 743 /* Configure swrast to match hardware characteristics: */ 744 _swrast_allow_pixel_fog(ctx, GL_FALSE); 745 _swrast_allow_vertex_fog(ctx, GL_TRUE); 746 747 _mesa_meta_init(ctx); 748 749 intel->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24; 750 intel->hw_stipple = 1; 751 752 /* XXX FBO: this doesn't seem to be used anywhere */ 753 switch (mesaVis->depthBits) { 754 case 0: /* what to do in this case? */ 755 case 16: 756 intel->polygon_offset_scale = 1.0; 757 break; 758 case 24: 759 intel->polygon_offset_scale = 2.0; /* req'd to pass glean */ 760 break; 761 default: 762 assert(0); 763 break; 764 } 765 766 if (intel->gen >= 4) 767 intel->polygon_offset_scale /= 0xffff; 768 769 intel->RenderIndex = ~0; 770 771 switch (ctx->API) { 772 case API_OPENGL: 773 intelInitExtensions(ctx); 774 break; 775 case API_OPENGLES: 776 break; 777 case API_OPENGLES2: 778 intelInitExtensionsES2(ctx); 779 break; 780 } 781 782 INTEL_DEBUG = driParseDebugString(getenv("INTEL_DEBUG"), debug_control); 783 if (INTEL_DEBUG & DEBUG_BUFMGR) 784 dri_bufmgr_set_debug(intel->bufmgr, GL_TRUE); 785 786 intel->batch = intel_batchbuffer_alloc(intel); 787 788 intel_fbo_init(intel); 789 790 if (intel->ctx.Mesa_DXTn) { 791 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc"); 792 _mesa_enable_extension(ctx, "GL_S3_s3tc"); 793 } 794 else if (driQueryOptionb(&intel->optionCache, "force_s3tc_enable")) { 795 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc"); 796 } 797 intel->use_texture_tiling = driQueryOptionb(&intel->optionCache, 798 "texture_tiling"); 799 intel->use_early_z = driQueryOptionb(&intel->optionCache, "early_z"); 800 801 intel->prim.primitive = ~0; 802 803 /* Force all software fallbacks */ 804 if (driQueryOptionb(&intel->optionCache, "no_rast")) { 805 fprintf(stderr, "disabling 3D rasterization\n"); 806 intel->no_rast = 1; 807 } 808 809 if (driQueryOptionb(&intel->optionCache, "always_flush_batch")) { 810 fprintf(stderr, "flushing batchbuffer before/after each draw call\n"); 811 intel->always_flush_batch = 1; 812 } 813 814 if (driQueryOptionb(&intel->optionCache, "always_flush_cache")) { 815 fprintf(stderr, "flushing GPU caches before/after each draw call\n"); 816 intel->always_flush_cache = 1; 817 } 818 819 /* Disable all hardware rendering (skip emitting batches and fences/waits 820 * to the kernel) 821 */ 822 intel->no_hw = getenv("INTEL_NO_HW") != NULL; 823 824 return GL_TRUE; 825} 826 827void 828intelDestroyContext(__DRIcontext * driContextPriv) 829{ 830 struct intel_context *intel = 831 (struct intel_context *) driContextPriv->driverPrivate; 832 833 assert(intel); /* should never be null */ 834 if (intel) { 835 INTEL_FIREVERTICES(intel); 836 837 _mesa_meta_free(&intel->ctx); 838 839 meta_destroy_metaops(&intel->meta); 840 841 intel->vtbl.destroy(intel); 842 843 _swsetup_DestroyContext(&intel->ctx); 844 _tnl_DestroyContext(&intel->ctx); 845 _vbo_DestroyContext(&intel->ctx); 846 847 _swrast_DestroyContext(&intel->ctx); 848 intel->Fallback = 0x0; /* don't call _swrast_Flush later */ 849 850 intel_batchbuffer_free(intel->batch); 851 intel->batch = NULL; 852 853 free(intel->prim.vb); 854 intel->prim.vb = NULL; 855 drm_intel_bo_unreference(intel->prim.vb_bo); 856 intel->prim.vb_bo = NULL; 857 drm_intel_bo_unreference(intel->first_post_swapbuffers_batch); 858 intel->first_post_swapbuffers_batch = NULL; 859 860 driDestroyOptionCache(&intel->optionCache); 861 862 /* free the Mesa context */ 863 _mesa_free_context_data(&intel->ctx); 864 865 FREE(intel); 866 driContextPriv->driverPrivate = NULL; 867 } 868} 869 870GLboolean 871intelUnbindContext(__DRIcontext * driContextPriv) 872{ 873 return GL_TRUE; 874} 875 876GLboolean 877intelMakeCurrent(__DRIcontext * driContextPriv, 878 __DRIdrawable * driDrawPriv, 879 __DRIdrawable * driReadPriv) 880{ 881 struct intel_context *intel; 882 GET_CURRENT_CONTEXT(curCtx); 883 884 if (driContextPriv) 885 intel = (struct intel_context *) driContextPriv->driverPrivate; 886 else 887 intel = NULL; 888 889 /* According to the glXMakeCurrent() man page: "Pending commands to 890 * the previous context, if any, are flushed before it is released." 891 * But only flush if we're actually changing contexts. 892 */ 893 if (intel_context(curCtx) && intel_context(curCtx) != intel) { 894 _mesa_flush(curCtx); 895 } 896 897 if (driContextPriv) { 898 struct gl_framebuffer *fb, *readFb; 899 900 if (driDrawPriv == NULL && driReadPriv == NULL) { 901 fb = _mesa_get_incomplete_framebuffer(); 902 readFb = _mesa_get_incomplete_framebuffer(); 903 } else { 904 fb = driDrawPriv->driverPrivate; 905 readFb = driReadPriv->driverPrivate; 906 driContextPriv->dri2.draw_stamp = driDrawPriv->dri2.stamp - 1; 907 driContextPriv->dri2.read_stamp = driReadPriv->dri2.stamp - 1; 908 } 909 910 intel_prepare_render(intel); 911 _mesa_make_current(&intel->ctx, fb, readFb); 912 913 /* We do this in intel_prepare_render() too, but intel->ctx.DrawBuffer 914 * is NULL at that point. We can't call _mesa_makecurrent() 915 * first, since we need the buffer size for the initial 916 * viewport. So just call intel_draw_buffer() again here. */ 917 intel_draw_buffer(&intel->ctx, intel->ctx.DrawBuffer); 918 } 919 else { 920 _mesa_make_current(NULL, NULL, NULL); 921 } 922 923 return GL_TRUE; 924} 925