intel_context.c revision 9456e22c7a8803bed1146a89e7581badf0ae8064
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 "intel_chipset.h" 43#include "intel_buffers.h" 44#include "intel_tex.h" 45#include "intel_batchbuffer.h" 46#include "intel_clear.h" 47#include "intel_extensions.h" 48#include "intel_pixel.h" 49#include "intel_regions.h" 50#include "intel_buffer_objects.h" 51#include "intel_fbo.h" 52#include "intel_bufmgr.h" 53#include "intel_screen.h" 54 55#include "drirenderbuffer.h" 56#include "utils.h" 57 58 59#ifndef INTEL_DEBUG 60int INTEL_DEBUG = (0); 61#endif 62 63 64#define DRIVER_DATE "20100330 DEVELOPMENT" 65#define DRIVER_DATE_GEM "GEM " DRIVER_DATE 66 67 68static const GLubyte * 69intelGetString(GLcontext * ctx, GLenum name) 70{ 71 const struct intel_context *const intel = intel_context(ctx); 72 const char *chipset; 73 static char buffer[128]; 74 75 switch (name) { 76 case GL_VENDOR: 77 return (GLubyte *) "Tungsten Graphics, Inc"; 78 break; 79 80 case GL_RENDERER: 81 switch (intel->intelScreen->deviceID) { 82 case PCI_CHIP_845_G: 83 chipset = "Intel(R) 845G"; 84 break; 85 case PCI_CHIP_I830_M: 86 chipset = "Intel(R) 830M"; 87 break; 88 case PCI_CHIP_I855_GM: 89 chipset = "Intel(R) 852GM/855GM"; 90 break; 91 case PCI_CHIP_I865_G: 92 chipset = "Intel(R) 865G"; 93 break; 94 case PCI_CHIP_I915_G: 95 chipset = "Intel(R) 915G"; 96 break; 97 case PCI_CHIP_E7221_G: 98 chipset = "Intel (R) E7221G (i915)"; 99 break; 100 case PCI_CHIP_I915_GM: 101 chipset = "Intel(R) 915GM"; 102 break; 103 case PCI_CHIP_I945_G: 104 chipset = "Intel(R) 945G"; 105 break; 106 case PCI_CHIP_I945_GM: 107 chipset = "Intel(R) 945GM"; 108 break; 109 case PCI_CHIP_I945_GME: 110 chipset = "Intel(R) 945GME"; 111 break; 112 case PCI_CHIP_G33_G: 113 chipset = "Intel(R) G33"; 114 break; 115 case PCI_CHIP_Q35_G: 116 chipset = "Intel(R) Q35"; 117 break; 118 case PCI_CHIP_Q33_G: 119 chipset = "Intel(R) Q33"; 120 break; 121 case PCI_CHIP_IGD_GM: 122 case PCI_CHIP_IGD_G: 123 chipset = "Intel(R) IGD"; 124 break; 125 case PCI_CHIP_I965_Q: 126 chipset = "Intel(R) 965Q"; 127 break; 128 case PCI_CHIP_I965_G: 129 case PCI_CHIP_I965_G_1: 130 chipset = "Intel(R) 965G"; 131 break; 132 case PCI_CHIP_I946_GZ: 133 chipset = "Intel(R) 946GZ"; 134 break; 135 case PCI_CHIP_I965_GM: 136 chipset = "Intel(R) 965GM"; 137 break; 138 case PCI_CHIP_I965_GME: 139 chipset = "Intel(R) 965GME/GLE"; 140 break; 141 case PCI_CHIP_GM45_GM: 142 chipset = "Mobile Intel® GM45 Express Chipset"; 143 break; 144 case PCI_CHIP_IGD_E_G: 145 chipset = "Intel(R) Integrated Graphics Device"; 146 break; 147 case PCI_CHIP_G45_G: 148 chipset = "Intel(R) G45/G43"; 149 break; 150 case PCI_CHIP_Q45_G: 151 chipset = "Intel(R) Q45/Q43"; 152 break; 153 case PCI_CHIP_G41_G: 154 chipset = "Intel(R) G41"; 155 break; 156 case PCI_CHIP_B43_G: 157 chipset = "Intel(R) B43"; 158 break; 159 case PCI_CHIP_ILD_G: 160 chipset = "Intel(R) Ironlake Desktop"; 161 break; 162 case PCI_CHIP_ILM_G: 163 chipset = "Intel(R) Ironlake Mobile"; 164 break; 165 default: 166 chipset = "Unknown Intel Chipset"; 167 break; 168 } 169 170 (void) driGetRendererString(buffer, chipset, DRIVER_DATE_GEM, 0); 171 return (GLubyte *) buffer; 172 173 default: 174 return NULL; 175 } 176} 177 178static void 179intel_flush_front(GLcontext *ctx) 180{ 181 struct intel_context *intel = intel_context(ctx); 182 __DRIcontext *driContext = intel->driContext; 183 __DRIscreen *const screen = intel->intelScreen->driScrnPriv; 184 185 if ((ctx->DrawBuffer->Name == 0) && intel->front_buffer_dirty) { 186 if (screen->dri2.loader && 187 (screen->dri2.loader->base.version >= 2) 188 && (screen->dri2.loader->flushFrontBuffer != NULL) && 189 driContext->driDrawablePriv && 190 driContext->driDrawablePriv->loaderPrivate) { 191 (*screen->dri2.loader->flushFrontBuffer)(driContext->driDrawablePriv, 192 driContext->driDrawablePriv->loaderPrivate); 193 194 /* We set the dirty bit in intel_prepare_render() if we're 195 * front buffer rendering once we get there. 196 */ 197 intel->front_buffer_dirty = GL_FALSE; 198 } 199 } 200} 201 202static unsigned 203intel_bits_per_pixel(const struct intel_renderbuffer *rb) 204{ 205 return _mesa_get_format_bytes(rb->Base.Format) * 8; 206} 207 208void 209intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable) 210{ 211 struct gl_framebuffer *fb = drawable->driverPrivate; 212 struct intel_renderbuffer *rb; 213 struct intel_region *region, *depth_region; 214 struct intel_context *intel = context->driverPrivate; 215 struct intel_renderbuffer *front_rb, *back_rb, *depth_rb, *stencil_rb; 216 __DRIbuffer *buffers = NULL; 217 __DRIscreen *screen; 218 int i, count; 219 unsigned int attachments[10]; 220 const char *region_name; 221 222 /* If we're rendering to the fake front buffer, make sure all the 223 * pending drawing has landed on the real front buffer. Otherwise 224 * when we eventually get to DRI2GetBuffersWithFormat the stale 225 * real front buffer contents will get copied to the new fake front 226 * buffer. 227 */ 228 if (intel->is_front_buffer_rendering) { 229 intel_flush(&intel->ctx); 230 intel_flush_front(&intel->ctx); 231 } 232 233 /* Set this up front, so that in case our buffers get invalidated 234 * while we're getting new buffers, we don't clobber the stamp and 235 * thus ignore the invalidate. */ 236 drawable->lastStamp = drawable->dri2.stamp; 237 238 if (INTEL_DEBUG & DEBUG_DRI) 239 fprintf(stderr, "enter %s, drawable %p\n", __func__, drawable); 240 241 screen = intel->intelScreen->driScrnPriv; 242 243 if (screen->dri2.loader 244 && (screen->dri2.loader->base.version > 2) 245 && (screen->dri2.loader->getBuffersWithFormat != NULL)) { 246 247 front_rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); 248 back_rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT); 249 depth_rb = intel_get_renderbuffer(fb, BUFFER_DEPTH); 250 stencil_rb = intel_get_renderbuffer(fb, BUFFER_STENCIL); 251 252 i = 0; 253 if ((intel->is_front_buffer_rendering || 254 intel->is_front_buffer_reading || 255 !back_rb) && front_rb) { 256 attachments[i++] = __DRI_BUFFER_FRONT_LEFT; 257 attachments[i++] = intel_bits_per_pixel(front_rb); 258 } 259 260 if (back_rb) { 261 attachments[i++] = __DRI_BUFFER_BACK_LEFT; 262 attachments[i++] = intel_bits_per_pixel(back_rb); 263 } 264 265 if ((depth_rb != NULL) && (stencil_rb != NULL)) { 266 attachments[i++] = __DRI_BUFFER_DEPTH_STENCIL; 267 attachments[i++] = intel_bits_per_pixel(depth_rb); 268 } else if (depth_rb != NULL) { 269 attachments[i++] = __DRI_BUFFER_DEPTH; 270 attachments[i++] = intel_bits_per_pixel(depth_rb); 271 } else if (stencil_rb != NULL) { 272 attachments[i++] = __DRI_BUFFER_STENCIL; 273 attachments[i++] = intel_bits_per_pixel(stencil_rb); 274 } 275 276 buffers = 277 (*screen->dri2.loader->getBuffersWithFormat)(drawable, 278 &drawable->w, 279 &drawable->h, 280 attachments, i / 2, 281 &count, 282 drawable->loaderPrivate); 283 } else if (screen->dri2.loader) { 284 i = 0; 285 if (intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT)) 286 attachments[i++] = __DRI_BUFFER_FRONT_LEFT; 287 if (intel_get_renderbuffer(fb, BUFFER_BACK_LEFT)) 288 attachments[i++] = __DRI_BUFFER_BACK_LEFT; 289 if (intel_get_renderbuffer(fb, BUFFER_DEPTH)) 290 attachments[i++] = __DRI_BUFFER_DEPTH; 291 if (intel_get_renderbuffer(fb, BUFFER_STENCIL)) 292 attachments[i++] = __DRI_BUFFER_STENCIL; 293 294 buffers = (*screen->dri2.loader->getBuffers)(drawable, 295 &drawable->w, 296 &drawable->h, 297 attachments, i, 298 &count, 299 drawable->loaderPrivate); 300 } 301 302 if (buffers == NULL) 303 return; 304 305 drawable->x = 0; 306 drawable->y = 0; 307 drawable->backX = 0; 308 drawable->backY = 0; 309 drawable->numClipRects = 1; 310 drawable->pClipRects[0].x1 = 0; 311 drawable->pClipRects[0].y1 = 0; 312 drawable->pClipRects[0].x2 = drawable->w; 313 drawable->pClipRects[0].y2 = drawable->h; 314 drawable->numBackClipRects = 1; 315 drawable->pBackClipRects[0].x1 = 0; 316 drawable->pBackClipRects[0].y1 = 0; 317 drawable->pBackClipRects[0].x2 = drawable->w; 318 drawable->pBackClipRects[0].y2 = drawable->h; 319 320 depth_region = NULL; 321 for (i = 0; i < count; i++) { 322 switch (buffers[i].attachment) { 323 case __DRI_BUFFER_FRONT_LEFT: 324 rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); 325 region_name = "dri2 front buffer"; 326 break; 327 328 case __DRI_BUFFER_FAKE_FRONT_LEFT: 329 rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); 330 region_name = "dri2 fake front buffer"; 331 break; 332 333 case __DRI_BUFFER_BACK_LEFT: 334 rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT); 335 region_name = "dri2 back buffer"; 336 break; 337 338 case __DRI_BUFFER_DEPTH: 339 rb = intel_get_renderbuffer(fb, BUFFER_DEPTH); 340 region_name = "dri2 depth buffer"; 341 break; 342 343 case __DRI_BUFFER_DEPTH_STENCIL: 344 rb = intel_get_renderbuffer(fb, BUFFER_DEPTH); 345 region_name = "dri2 depth / stencil buffer"; 346 break; 347 348 case __DRI_BUFFER_STENCIL: 349 rb = intel_get_renderbuffer(fb, BUFFER_STENCIL); 350 region_name = "dri2 stencil buffer"; 351 break; 352 353 case __DRI_BUFFER_ACCUM: 354 default: 355 fprintf(stderr, 356 "unhandled buffer attach event, attacment type %d\n", 357 buffers[i].attachment); 358 return; 359 } 360 361 if (rb == NULL) 362 continue; 363 364 if (rb->region && rb->region->name == buffers[i].name) 365 continue; 366 367 if (INTEL_DEBUG & DEBUG_DRI) 368 fprintf(stderr, 369 "attaching buffer %d, at %d, cpp %d, pitch %d\n", 370 buffers[i].name, buffers[i].attachment, 371 buffers[i].cpp, buffers[i].pitch); 372 373 if (buffers[i].attachment == __DRI_BUFFER_STENCIL && depth_region) { 374 if (INTEL_DEBUG & DEBUG_DRI) 375 fprintf(stderr, "(reusing depth buffer as stencil)\n"); 376 intel_region_reference(®ion, depth_region); 377 } 378 else 379 region = intel_region_alloc_for_handle(intel, buffers[i].cpp, 380 drawable->w, 381 drawable->h, 382 buffers[i].pitch / buffers[i].cpp, 383 buffers[i].name, 384 region_name); 385 386 if (buffers[i].attachment == __DRI_BUFFER_DEPTH) 387 depth_region = region; 388 389 intel_renderbuffer_set_region(intel, rb, region); 390 intel_region_release(®ion); 391 392 if (buffers[i].attachment == __DRI_BUFFER_DEPTH_STENCIL) { 393 rb = intel_get_renderbuffer(fb, BUFFER_STENCIL); 394 if (rb != NULL) { 395 struct intel_region *stencil_region = NULL; 396 397 if (rb->region && rb->region->name == buffers[i].name) 398 continue; 399 400 intel_region_reference(&stencil_region, region); 401 intel_renderbuffer_set_region(intel, rb, stencil_region); 402 intel_region_release(&stencil_region); 403 } 404 } 405 } 406 407 driUpdateFramebufferSize(&intel->ctx, drawable); 408} 409 410/** 411 * intel_prepare_render should be called anywhere that curent read/drawbuffer 412 * state is required. 413 */ 414void 415intel_prepare_render(struct intel_context *intel) 416{ 417 __DRIcontext *driContext = intel->driContext; 418 __DRIdrawable *drawable; 419 420 drawable = driContext->driDrawablePriv; 421 if (drawable && drawable->dri2.stamp != driContext->dri2.draw_stamp) { 422 if (drawable->lastStamp != drawable->dri2.stamp) 423 intel_update_renderbuffers(driContext, drawable); 424 intel_draw_buffer(&intel->ctx, intel->ctx.DrawBuffer); 425 driContext->dri2.draw_stamp = drawable->dri2.stamp; 426 } 427 428 drawable = driContext->driReadablePriv; 429 if (drawable && drawable->dri2.stamp != driContext->dri2.read_stamp) { 430 if (drawable->lastStamp != drawable->dri2.stamp) 431 intel_update_renderbuffers(driContext, drawable); 432 driContext->dri2.read_stamp = drawable->dri2.stamp; 433 } 434 435 /* If we're currently rendering to the front buffer, the rendering 436 * that will happen next will probably dirty the front buffer. So 437 * mark it as dirty here. 438 */ 439 if (intel->is_front_buffer_rendering) 440 intel->front_buffer_dirty = GL_TRUE; 441 442 /* Wait for the swapbuffers before the one we just emitted, so we 443 * don't get too many swaps outstanding for apps that are GPU-heavy 444 * but not CPU-heavy. 445 * 446 * We're using intelDRI2Flush (called from the loader before 447 * swapbuffer) and glFlush (for front buffer rendering) as the 448 * indicator that a frame is done and then throttle when we get 449 * here as we prepare to render the next frame. At this point for 450 * round trips for swap/copy and getting new buffers are done and 451 * we'll spend less time waiting on the GPU. 452 * 453 * Unfortunately, we don't have a handle to the batch containing 454 * the swap, and getting our hands on that doesn't seem worth it, 455 * so we just us the first batch we emitted after the last swap. 456 */ 457 if (intel->need_throttle && intel->first_post_swapbuffers_batch) { 458 drm_intel_bo_wait_rendering(intel->first_post_swapbuffers_batch); 459 drm_intel_bo_unreference(intel->first_post_swapbuffers_batch); 460 intel->first_post_swapbuffers_batch = NULL; 461 intel->need_throttle = GL_FALSE; 462 } 463} 464 465static void 466intel_viewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h) 467{ 468 struct intel_context *intel = intel_context(ctx); 469 __DRIcontext *driContext = intel->driContext; 470 471 if (intel->saved_viewport) 472 intel->saved_viewport(ctx, x, y, w, h); 473 474 if (!intel->meta.internal_viewport_call && ctx->DrawBuffer->Name == 0) { 475 dri2InvalidateDrawable(driContext->driDrawablePriv); 476 dri2InvalidateDrawable(driContext->driReadablePriv); 477 } 478} 479 480static const struct dri_debug_control debug_control[] = { 481 { "tex", DEBUG_TEXTURE}, 482 { "state", DEBUG_STATE}, 483 { "ioctl", DEBUG_IOCTL}, 484 { "blit", DEBUG_BLIT}, 485 { "mip", DEBUG_MIPTREE}, 486 { "fall", DEBUG_FALLBACKS}, 487 { "verb", DEBUG_VERBOSE}, 488 { "bat", DEBUG_BATCH}, 489 { "pix", DEBUG_PIXEL}, 490 { "buf", DEBUG_BUFMGR}, 491 { "reg", DEBUG_REGION}, 492 { "fbo", DEBUG_FBO}, 493 { "gs", DEBUG_GS}, 494 { "sync", DEBUG_SYNC}, 495 { "prim", DEBUG_PRIMS }, 496 { "vert", DEBUG_VERTS }, 497 { "dri", DEBUG_DRI }, 498 { "sf", DEBUG_SF }, 499 { "san", DEBUG_SANITY }, 500 { "sleep", DEBUG_SLEEP }, 501 { "stats", DEBUG_STATS }, 502 { "tile", DEBUG_TILE }, 503 { "sing", DEBUG_SINGLE_THREAD }, 504 { "thre", DEBUG_SINGLE_THREAD }, 505 { "wm", DEBUG_WM }, 506 { "glsl_force", DEBUG_GLSL_FORCE }, 507 { "urb", DEBUG_URB }, 508 { "vs", DEBUG_VS }, 509 { "clip", DEBUG_CLIP }, 510 { NULL, 0 } 511}; 512 513 514static void 515intelInvalidateState(GLcontext * ctx, GLuint new_state) 516{ 517 struct intel_context *intel = intel_context(ctx); 518 519 _swrast_InvalidateState(ctx, new_state); 520 _swsetup_InvalidateState(ctx, new_state); 521 _vbo_InvalidateState(ctx, new_state); 522 _tnl_InvalidateState(ctx, new_state); 523 _tnl_invalidate_vertex_state(ctx, new_state); 524 525 intel->NewGLState |= new_state; 526 527 if (intel->vtbl.invalidate_state) 528 intel->vtbl.invalidate_state( intel, new_state ); 529} 530 531void 532intel_flush(GLcontext *ctx) 533{ 534 struct intel_context *intel = intel_context(ctx); 535 536 if (intel->Fallback) 537 _swrast_flush(ctx); 538 539 if (intel->gen < 4) 540 INTEL_FIREVERTICES(intel); 541 542 if (intel->batch->map != intel->batch->ptr) 543 intel_batchbuffer_flush(intel->batch); 544} 545 546static void 547intel_glFlush(GLcontext *ctx) 548{ 549 struct intel_context *intel = intel_context(ctx); 550 551 intel_flush(ctx); 552 intel_flush_front(ctx); 553 intel->need_throttle = GL_TRUE; 554} 555 556void 557intelFinish(GLcontext * ctx) 558{ 559 struct gl_framebuffer *fb = ctx->DrawBuffer; 560 int i; 561 562 intel_flush(ctx); 563 intel_flush_front(ctx); 564 565 for (i = 0; i < fb->_NumColorDrawBuffers; i++) { 566 struct intel_renderbuffer *irb; 567 568 irb = intel_renderbuffer(fb->_ColorDrawBuffers[i]); 569 570 if (irb && irb->region) 571 drm_intel_bo_wait_rendering(irb->region->buffer); 572 } 573 if (fb->_DepthBuffer) { 574 /* XXX: Wait on buffer idle */ 575 } 576} 577 578void 579intelInitDriverFunctions(struct dd_function_table *functions) 580{ 581 _mesa_init_driver_functions(functions); 582 583 functions->Flush = intel_glFlush; 584 functions->Finish = intelFinish; 585 functions->GetString = intelGetString; 586 functions->UpdateState = intelInvalidateState; 587 588 intelInitTextureFuncs(functions); 589 intelInitTextureImageFuncs(functions); 590 intelInitTextureSubImageFuncs(functions); 591 intelInitTextureCopyImageFuncs(functions); 592 intelInitStateFuncs(functions); 593 intelInitClearFuncs(functions); 594 intelInitBufferFuncs(functions); 595 intelInitPixelFuncs(functions); 596 intelInitBufferObjectFuncs(functions); 597 intel_init_syncobj_functions(functions); 598} 599 600 601GLboolean 602intelInitContext(struct intel_context *intel, 603 int api, 604 const __GLcontextModes * mesaVis, 605 __DRIcontext * driContextPriv, 606 void *sharedContextPrivate, 607 struct dd_function_table *functions) 608{ 609 GLcontext *ctx = &intel->ctx; 610 GLcontext *shareCtx = (GLcontext *) sharedContextPrivate; 611 __DRIscreen *sPriv = driContextPriv->driScreenPriv; 612 struct intel_screen *intelScreen = sPriv->private; 613 int bo_reuse_mode; 614 __GLcontextModes visual; 615 616 /* we can't do anything without a connection to the device */ 617 if (intelScreen->bufmgr == NULL) 618 return GL_FALSE; 619 620 /* Can't rely on invalidate events, fall back to glViewport hack */ 621 if (!driContextPriv->driScreenPriv->dri2.useInvalidate) { 622 intel->saved_viewport = functions->Viewport; 623 functions->Viewport = intel_viewport; 624 } 625 626 if (mesaVis == NULL) { 627 memset(&visual, 0, sizeof visual); 628 mesaVis = &visual; 629 } 630 631 if (!_mesa_initialize_context_for_api(&intel->ctx, api, mesaVis, shareCtx, 632 functions, (void *) intel)) { 633 printf("%s: failed to init mesa context\n", __FUNCTION__); 634 return GL_FALSE; 635 } 636 637 driContextPriv->driverPrivate = intel; 638 intel->intelScreen = intelScreen; 639 intel->driContext = driContextPriv; 640 intel->driFd = sPriv->fd; 641 642 intel->has_xrgb_textures = GL_TRUE; 643 if (IS_GEN6(intel->intelScreen->deviceID)) { 644 intel->gen = 6; 645 intel->needs_ff_sync = GL_TRUE; 646 intel->has_luminance_srgb = GL_TRUE; 647 } else if (IS_GEN5(intel->intelScreen->deviceID)) { 648 intel->gen = 5; 649 intel->needs_ff_sync = GL_TRUE; 650 intel->has_luminance_srgb = GL_TRUE; 651 } else if (IS_965(intel->intelScreen->deviceID)) { 652 intel->gen = 4; 653 if (IS_G4X(intel->intelScreen->deviceID)) { 654 intel->has_luminance_srgb = GL_TRUE; 655 intel->is_g4x = GL_TRUE; 656 } 657 } else if (IS_9XX(intel->intelScreen->deviceID)) { 658 intel->gen = 3; 659 if (IS_945(intel->intelScreen->deviceID)) { 660 intel->is_945 = GL_TRUE; 661 } 662 } else { 663 intel->gen = 2; 664 if (intel->intelScreen->deviceID == PCI_CHIP_I830_M || 665 intel->intelScreen->deviceID == PCI_CHIP_845_G) { 666 intel->has_xrgb_textures = GL_FALSE; 667 } 668 } 669 670 driParseConfigFiles(&intel->optionCache, &intelScreen->optionCache, 671 sPriv->myNum, (intel->gen >= 4) ? "i965" : "i915"); 672 if (intelScreen->deviceID == PCI_CHIP_I865_G) 673 intel->maxBatchSize = 4096; 674 else 675 intel->maxBatchSize = BATCH_SZ; 676 677 intel->bufmgr = intelScreen->bufmgr; 678 679 bo_reuse_mode = driQueryOptioni(&intel->optionCache, "bo_reuse"); 680 switch (bo_reuse_mode) { 681 case DRI_CONF_BO_REUSE_DISABLED: 682 break; 683 case DRI_CONF_BO_REUSE_ALL: 684 intel_bufmgr_gem_enable_reuse(intel->bufmgr); 685 break; 686 } 687 688 /* This doesn't yet catch all non-conformant rendering, but it's a 689 * start. 690 */ 691 if (getenv("INTEL_STRICT_CONFORMANCE")) { 692 unsigned int value = atoi(getenv("INTEL_STRICT_CONFORMANCE")); 693 if (value > 0) { 694 intel->conformance_mode = value; 695 } 696 else { 697 intel->conformance_mode = 1; 698 } 699 } 700 701 if (intel->conformance_mode > 0) { 702 ctx->Const.MinLineWidth = 1.0; 703 ctx->Const.MinLineWidthAA = 1.0; 704 ctx->Const.MaxLineWidth = 1.0; 705 ctx->Const.MaxLineWidthAA = 1.0; 706 ctx->Const.LineWidthGranularity = 1.0; 707 } 708 else { 709 ctx->Const.MinLineWidth = 1.0; 710 ctx->Const.MinLineWidthAA = 1.0; 711 ctx->Const.MaxLineWidth = 5.0; 712 ctx->Const.MaxLineWidthAA = 5.0; 713 ctx->Const.LineWidthGranularity = 0.5; 714 } 715 716 ctx->Const.MinPointSize = 1.0; 717 ctx->Const.MinPointSizeAA = 1.0; 718 ctx->Const.MaxPointSize = 255.0; 719 ctx->Const.MaxPointSizeAA = 3.0; 720 ctx->Const.PointSizeGranularity = 1.0; 721 722 /* reinitialize the context point state. 723 * It depend on constants in __GLcontextRec::Const 724 */ 725 _mesa_init_point(ctx); 726 727 meta_init_metaops(ctx, &intel->meta); 728 if (intel->gen >= 4) { 729 if (MAX_WIDTH > 8192) 730 ctx->Const.MaxRenderbufferSize = 8192; 731 } else { 732 if (MAX_WIDTH > 2048) 733 ctx->Const.MaxRenderbufferSize = 2048; 734 } 735 736 /* Initialize the software rasterizer and helper modules. */ 737 _swrast_CreateContext(ctx); 738 _vbo_CreateContext(ctx); 739 _tnl_CreateContext(ctx); 740 _swsetup_CreateContext(ctx); 741 742 /* Configure swrast to match hardware characteristics: */ 743 _swrast_allow_pixel_fog(ctx, GL_FALSE); 744 _swrast_allow_vertex_fog(ctx, GL_TRUE); 745 746 _mesa_meta_init(ctx); 747 748 intel->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24; 749 intel->hw_stipple = 1; 750 751 /* XXX FBO: this doesn't seem to be used anywhere */ 752 switch (mesaVis->depthBits) { 753 case 0: /* what to do in this case? */ 754 case 16: 755 intel->polygon_offset_scale = 1.0; 756 break; 757 case 24: 758 intel->polygon_offset_scale = 2.0; /* req'd to pass glean */ 759 break; 760 default: 761 assert(0); 762 break; 763 } 764 765 if (intel->gen >= 4) 766 intel->polygon_offset_scale /= 0xffff; 767 768 intel->RenderIndex = ~0; 769 770 switch (ctx->API) { 771 case API_OPENGL: 772 intelInitExtensions(ctx); 773 break; 774 case API_OPENGLES: 775 break; 776 case API_OPENGLES2: 777 intelInitExtensionsES2(ctx); 778 break; 779 } 780 781 INTEL_DEBUG = driParseDebugString(getenv("INTEL_DEBUG"), debug_control); 782 if (INTEL_DEBUG & DEBUG_BUFMGR) 783 dri_bufmgr_set_debug(intel->bufmgr, GL_TRUE); 784 785 intel->batch = intel_batchbuffer_alloc(intel); 786 787 intel_fbo_init(intel); 788 789 if (intel->ctx.Mesa_DXTn) { 790 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc"); 791 _mesa_enable_extension(ctx, "GL_S3_s3tc"); 792 } 793 else if (driQueryOptionb(&intel->optionCache, "force_s3tc_enable")) { 794 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc"); 795 } 796 intel->use_texture_tiling = driQueryOptionb(&intel->optionCache, 797 "texture_tiling"); 798 intel->use_early_z = driQueryOptionb(&intel->optionCache, "early_z"); 799 800 intel->prim.primitive = ~0; 801 802 /* Force all software fallbacks */ 803 if (driQueryOptionb(&intel->optionCache, "no_rast")) { 804 fprintf(stderr, "disabling 3D rasterization\n"); 805 intel->no_rast = 1; 806 } 807 808 if (driQueryOptionb(&intel->optionCache, "always_flush_batch")) { 809 fprintf(stderr, "flushing batchbuffer before/after each draw call\n"); 810 intel->always_flush_batch = 1; 811 } 812 813 if (driQueryOptionb(&intel->optionCache, "always_flush_cache")) { 814 fprintf(stderr, "flushing GPU caches before/after each draw call\n"); 815 intel->always_flush_cache = 1; 816 } 817 818 /* Disable all hardware rendering (skip emitting batches and fences/waits 819 * to the kernel) 820 */ 821 intel->no_hw = getenv("INTEL_NO_HW") != NULL; 822 823 return GL_TRUE; 824} 825 826void 827intelDestroyContext(__DRIcontext * driContextPriv) 828{ 829 struct intel_context *intel = 830 (struct intel_context *) driContextPriv->driverPrivate; 831 832 assert(intel); /* should never be null */ 833 if (intel) { 834 INTEL_FIREVERTICES(intel); 835 836 _mesa_meta_free(&intel->ctx); 837 838 meta_destroy_metaops(&intel->meta); 839 840 intel->vtbl.destroy(intel); 841 842 _swsetup_DestroyContext(&intel->ctx); 843 _tnl_DestroyContext(&intel->ctx); 844 _vbo_DestroyContext(&intel->ctx); 845 846 _swrast_DestroyContext(&intel->ctx); 847 intel->Fallback = 0x0; /* don't call _swrast_Flush later */ 848 849 intel_batchbuffer_free(intel->batch); 850 intel->batch = NULL; 851 852 free(intel->prim.vb); 853 intel->prim.vb = NULL; 854 drm_intel_bo_unreference(intel->prim.vb_bo); 855 intel->prim.vb_bo = NULL; 856 drm_intel_bo_unreference(intel->first_post_swapbuffers_batch); 857 intel->first_post_swapbuffers_batch = NULL; 858 859 driDestroyOptionCache(&intel->optionCache); 860 861 /* free the Mesa context */ 862 _mesa_free_context_data(&intel->ctx); 863 864 FREE(intel); 865 driContextPriv->driverPrivate = NULL; 866 } 867} 868 869GLboolean 870intelUnbindContext(__DRIcontext * driContextPriv) 871{ 872 return GL_TRUE; 873} 874 875GLboolean 876intelMakeCurrent(__DRIcontext * driContextPriv, 877 __DRIdrawable * driDrawPriv, 878 __DRIdrawable * driReadPriv) 879{ 880 struct intel_context *intel; 881 GET_CURRENT_CONTEXT(curCtx); 882 883 if (driContextPriv) 884 intel = (struct intel_context *) driContextPriv->driverPrivate; 885 else 886 intel = NULL; 887 888 /* According to the glXMakeCurrent() man page: "Pending commands to 889 * the previous context, if any, are flushed before it is released." 890 * But only flush if we're actually changing contexts. 891 */ 892 if (intel_context(curCtx) && intel_context(curCtx) != intel) { 893 _mesa_flush(curCtx); 894 } 895 896 if (driContextPriv) { 897 struct gl_framebuffer *fb, *readFb; 898 899 if (driDrawPriv == NULL && driReadPriv == NULL) { 900 fb = _mesa_get_incomplete_framebuffer(); 901 readFb = _mesa_get_incomplete_framebuffer(); 902 } else { 903 fb = driDrawPriv->driverPrivate; 904 readFb = driReadPriv->driverPrivate; 905 driContextPriv->dri2.draw_stamp = driDrawPriv->dri2.stamp - 1; 906 driContextPriv->dri2.read_stamp = driReadPriv->dri2.stamp - 1; 907 } 908 909 intel_prepare_render(intel); 910 _mesa_make_current(&intel->ctx, fb, readFb); 911 912 /* We do this in intel_prepare_render() too, but intel->ctx.DrawBuffer 913 * is NULL at that point. We can't call _mesa_makecurrent() 914 * first, since we need the buffer size for the initial 915 * viewport. So just call intel_draw_buffer() again here. */ 916 intel_draw_buffer(&intel->ctx, intel->ctx.DrawBuffer); 917 } 918 else { 919 _mesa_make_current(NULL, NULL, NULL); 920 } 921 922 return GL_TRUE; 923} 924