intel_context.c revision 9178b31546e9817a0c9712f702b21f8c54efbd84
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/arrayobj.h" 32#include "main/extensions.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 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_decode.h" 55#include "intel_bufmgr.h" 56#include "intel_screen.h" 57#include "intel_swapbuffers.h" 58 59#include "drirenderbuffer.h" 60#include "vblank.h" 61#include "utils.h" 62#include "xmlpool.h" /* for symbolic values of enum-type options */ 63 64 65#ifndef INTEL_DEBUG 66int INTEL_DEBUG = (0); 67#endif 68 69 70#define DRIVER_DATE "20090114" 71#define DRIVER_DATE_GEM "GEM " DRIVER_DATE 72 73 74static const GLubyte * 75intelGetString(GLcontext * ctx, GLenum name) 76{ 77 const struct intel_context *const intel = intel_context(ctx); 78 const char *chipset; 79 static char buffer[128]; 80 81 switch (name) { 82 case GL_VENDOR: 83 return (GLubyte *) "Tungsten Graphics, Inc"; 84 break; 85 86 case GL_RENDERER: 87 switch (intel->intelScreen->deviceID) { 88 case PCI_CHIP_845_G: 89 chipset = "Intel(R) 845G"; 90 break; 91 case PCI_CHIP_I830_M: 92 chipset = "Intel(R) 830M"; 93 break; 94 case PCI_CHIP_I855_GM: 95 chipset = "Intel(R) 852GM/855GM"; 96 break; 97 case PCI_CHIP_I865_G: 98 chipset = "Intel(R) 865G"; 99 break; 100 case PCI_CHIP_I915_G: 101 chipset = "Intel(R) 915G"; 102 break; 103 case PCI_CHIP_E7221_G: 104 chipset = "Intel (R) E7221G (i915)"; 105 break; 106 case PCI_CHIP_I915_GM: 107 chipset = "Intel(R) 915GM"; 108 break; 109 case PCI_CHIP_I945_G: 110 chipset = "Intel(R) 945G"; 111 break; 112 case PCI_CHIP_I945_GM: 113 chipset = "Intel(R) 945GM"; 114 break; 115 case PCI_CHIP_I945_GME: 116 chipset = "Intel(R) 945GME"; 117 break; 118 case PCI_CHIP_G33_G: 119 chipset = "Intel(R) G33"; 120 break; 121 case PCI_CHIP_Q35_G: 122 chipset = "Intel(R) Q35"; 123 break; 124 case PCI_CHIP_Q33_G: 125 chipset = "Intel(R) Q33"; 126 break; 127 case PCI_CHIP_IGD_GM: 128 case PCI_CHIP_IGD_G: 129 chipset = "Intel(R) IGD"; 130 break; 131 case PCI_CHIP_I965_Q: 132 chipset = "Intel(R) 965Q"; 133 break; 134 case PCI_CHIP_I965_G: 135 case PCI_CHIP_I965_G_1: 136 chipset = "Intel(R) 965G"; 137 break; 138 case PCI_CHIP_I946_GZ: 139 chipset = "Intel(R) 946GZ"; 140 break; 141 case PCI_CHIP_I965_GM: 142 chipset = "Intel(R) 965GM"; 143 break; 144 case PCI_CHIP_I965_GME: 145 chipset = "Intel(R) 965GME/GLE"; 146 break; 147 case PCI_CHIP_GM45_GM: 148 chipset = "Mobile Intel® GM45 Express Chipset"; 149 break; 150 case PCI_CHIP_IGD_E_G: 151 chipset = "Intel(R) Integrated Graphics Device"; 152 break; 153 case PCI_CHIP_G45_G: 154 chipset = "Intel(R) G45/G43"; 155 break; 156 case PCI_CHIP_Q45_G: 157 chipset = "Intel(R) Q45/Q43"; 158 break; 159 case PCI_CHIP_G41_G: 160 chipset = "Intel(R) G41"; 161 break; 162 default: 163 chipset = "Unknown Intel Chipset"; 164 break; 165 } 166 167 (void) driGetRendererString(buffer, chipset, 168 (intel->ttm) ? DRIVER_DATE_GEM : DRIVER_DATE, 169 0); 170 return (GLubyte *) buffer; 171 172 default: 173 return NULL; 174 } 175} 176 177static unsigned 178intel_bits_per_pixel(const struct intel_renderbuffer *rb) 179{ 180 switch (rb->Base._ActualFormat) { 181 case GL_RGB5: 182 case GL_DEPTH_COMPONENT16: 183 return 16; 184 case GL_RGB8: 185 case GL_RGBA8: 186 case GL_DEPTH_COMPONENT24: 187 case GL_DEPTH24_STENCIL8_EXT: 188 case GL_STENCIL_INDEX8_EXT: 189 return 32; 190 default: 191 return 0; 192 } 193} 194 195void 196intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable) 197{ 198 struct intel_framebuffer *intel_fb = drawable->driverPrivate; 199 struct intel_renderbuffer *rb; 200 struct intel_region *region, *depth_region; 201 struct intel_context *intel = context->driverPrivate; 202 __DRIbuffer *buffers = NULL; 203 __DRIscreen *screen; 204 int i, count; 205 unsigned int attachments[10]; 206 uint32_t name; 207 const char *region_name; 208 209 if (INTEL_DEBUG & DEBUG_DRI) 210 fprintf(stderr, "enter %s, drawable %p\n", __func__, drawable); 211 212 screen = intel->intelScreen->driScrnPriv; 213 214 if (screen->dri2.loader 215 && (screen->dri2.loader->base.version > 2) 216 && (screen->dri2.loader->getBuffersWithFormat != NULL)) { 217 struct intel_renderbuffer *depth_rb; 218 struct intel_renderbuffer *stencil_rb; 219 220 i = 0; 221 if ((intel->is_front_buffer_rendering || !intel_fb->color_rb[1]) 222 && intel_fb->color_rb[0]) { 223 attachments[i++] = __DRI_BUFFER_FRONT_LEFT; 224 attachments[i++] = intel_bits_per_pixel(intel_fb->color_rb[0]); 225 } 226 227 if (intel_fb->color_rb[1]) { 228 attachments[i++] = __DRI_BUFFER_BACK_LEFT; 229 attachments[i++] = intel_bits_per_pixel(intel_fb->color_rb[1]); 230 } 231 232 depth_rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH); 233 stencil_rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL); 234 235 if ((depth_rb != NULL) && (stencil_rb != NULL)) { 236 attachments[i++] = __DRI_BUFFER_DEPTH_STENCIL; 237 attachments[i++] = intel_bits_per_pixel(depth_rb); 238 } else if (depth_rb != NULL) { 239 attachments[i++] = __DRI_BUFFER_DEPTH; 240 attachments[i++] = intel_bits_per_pixel(depth_rb); 241 } else if (stencil_rb != NULL) { 242 attachments[i++] = __DRI_BUFFER_STENCIL; 243 attachments[i++] = intel_bits_per_pixel(stencil_rb); 244 } 245 246 buffers = 247 (*screen->dri2.loader->getBuffersWithFormat)(drawable, 248 &drawable->w, 249 &drawable->h, 250 attachments, i / 2, 251 &count, 252 drawable->loaderPrivate); 253 } else if (screen->dri2.loader) { 254 i = 0; 255 if (intel_fb->color_rb[0]) 256 attachments[i++] = __DRI_BUFFER_FRONT_LEFT; 257 if (intel_fb->color_rb[1]) 258 attachments[i++] = __DRI_BUFFER_BACK_LEFT; 259 if (intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH)) 260 attachments[i++] = __DRI_BUFFER_DEPTH; 261 if (intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL)) 262 attachments[i++] = __DRI_BUFFER_STENCIL; 263 264 buffers = (*screen->dri2.loader->getBuffers)(drawable, 265 &drawable->w, 266 &drawable->h, 267 attachments, i, 268 &count, 269 drawable->loaderPrivate); 270 } 271 272 if (buffers == NULL) 273 return; 274 275 drawable->x = 0; 276 drawable->y = 0; 277 drawable->backX = 0; 278 drawable->backY = 0; 279 drawable->numClipRects = 1; 280 drawable->pClipRects[0].x1 = 0; 281 drawable->pClipRects[0].y1 = 0; 282 drawable->pClipRects[0].x2 = drawable->w; 283 drawable->pClipRects[0].y2 = drawable->h; 284 drawable->numBackClipRects = 1; 285 drawable->pBackClipRects[0].x1 = 0; 286 drawable->pBackClipRects[0].y1 = 0; 287 drawable->pBackClipRects[0].x2 = drawable->w; 288 drawable->pBackClipRects[0].y2 = drawable->h; 289 290 depth_region = NULL; 291 for (i = 0; i < count; i++) { 292 switch (buffers[i].attachment) { 293 case __DRI_BUFFER_FRONT_LEFT: 294 rb = intel_fb->color_rb[0]; 295 region_name = "dri2 front buffer"; 296 break; 297 298 case __DRI_BUFFER_FAKE_FRONT_LEFT: 299 rb = intel_fb->color_rb[0]; 300 region_name = "dri2 fake front buffer"; 301 break; 302 303 case __DRI_BUFFER_BACK_LEFT: 304 rb = intel_fb->color_rb[1]; 305 region_name = "dri2 back buffer"; 306 break; 307 308 case __DRI_BUFFER_DEPTH: 309 rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH); 310 region_name = "dri2 depth buffer"; 311 break; 312 313 case __DRI_BUFFER_DEPTH_STENCIL: 314 rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH); 315 region_name = "dri2 depth / stencil buffer"; 316 break; 317 318 case __DRI_BUFFER_STENCIL: 319 rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL); 320 region_name = "dri2 stencil buffer"; 321 break; 322 323 case __DRI_BUFFER_ACCUM: 324 default: 325 fprintf(stderr, 326 "unhandled buffer attach event, attacment type %d\n", 327 buffers[i].attachment); 328 return; 329 } 330 331 if (rb == NULL) 332 continue; 333 334 if (rb->region) { 335 dri_bo_flink(rb->region->buffer, &name); 336 if (name == buffers[i].name) 337 continue; 338 } 339 340 if (INTEL_DEBUG & DEBUG_DRI) 341 fprintf(stderr, 342 "attaching buffer %d, at %d, cpp %d, pitch %d\n", 343 buffers[i].name, buffers[i].attachment, 344 buffers[i].cpp, buffers[i].pitch); 345 346 if (buffers[i].attachment == __DRI_BUFFER_STENCIL && depth_region) { 347 if (INTEL_DEBUG & DEBUG_DRI) 348 fprintf(stderr, "(reusing depth buffer as stencil)\n"); 349 intel_region_reference(®ion, depth_region); 350 } 351 else 352 region = intel_region_alloc_for_handle(intel, buffers[i].cpp, 353 drawable->w, 354 drawable->h, 355 buffers[i].pitch / buffers[i].cpp, 356 buffers[i].name, 357 region_name); 358 359 if (buffers[i].attachment == __DRI_BUFFER_DEPTH) 360 depth_region = region; 361 362 intel_renderbuffer_set_region(rb, region); 363 intel_region_release(®ion); 364 365 if (buffers[i].attachment == __DRI_BUFFER_DEPTH_STENCIL) { 366 rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL); 367 if (rb != NULL) { 368 struct intel_region *stencil_region = NULL; 369 370 if (rb->region) { 371 dri_bo_flink(rb->region->buffer, &name); 372 if (name == buffers[i].name) 373 continue; 374 } 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_viewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h) 388{ 389 struct intel_context *intel = intel_context(ctx); 390 __DRIcontext *driContext = intel->driContext; 391 void (*old_viewport)(GLcontext *ctx, GLint x, GLint y, 392 GLsizei w, GLsizei h); 393 394 if (!driContext->driScreenPriv->dri2.enabled) 395 return; 396 397 if (!intel->internal_viewport_call && ctx->DrawBuffer->Name == 0) { 398 intel_update_renderbuffers(driContext, driContext->driDrawablePriv); 399 if (driContext->driDrawablePriv != driContext->driReadablePriv) 400 intel_update_renderbuffers(driContext, driContext->driReadablePriv); 401 } 402 403 old_viewport = ctx->Driver.Viewport; 404 ctx->Driver.Viewport = NULL; 405 intel->driDrawable = driContext->driDrawablePriv; 406 intelWindowMoved(intel); 407 intel_draw_buffer(ctx, intel->ctx.DrawBuffer); 408 ctx->Driver.Viewport = old_viewport; 409} 410 411 412static const struct dri_debug_control debug_control[] = { 413 { "tex", DEBUG_TEXTURE}, 414 { "state", DEBUG_STATE}, 415 { "ioctl", DEBUG_IOCTL}, 416 { "blit", DEBUG_BLIT}, 417 { "mip", DEBUG_MIPTREE}, 418 { "fall", DEBUG_FALLBACKS}, 419 { "verb", DEBUG_VERBOSE}, 420 { "bat", DEBUG_BATCH}, 421 { "pix", DEBUG_PIXEL}, 422 { "buf", DEBUG_BUFMGR}, 423 { "reg", DEBUG_REGION}, 424 { "fbo", DEBUG_FBO}, 425 { "lock", DEBUG_LOCK}, 426 { "sync", DEBUG_SYNC}, 427 { "prim", DEBUG_PRIMS }, 428 { "vert", DEBUG_VERTS }, 429 { "dri", DEBUG_DRI }, 430 { "dma", DEBUG_DMA }, 431 { "san", DEBUG_SANITY }, 432 { "sleep", DEBUG_SLEEP }, 433 { "stats", DEBUG_STATS }, 434 { "tile", DEBUG_TILE }, 435 { "sing", DEBUG_SINGLE_THREAD }, 436 { "thre", DEBUG_SINGLE_THREAD }, 437 { "wm", DEBUG_WM }, 438 { "urb", DEBUG_URB }, 439 { "vs", DEBUG_VS }, 440 { NULL, 0 } 441}; 442 443 444static void 445intelInvalidateState(GLcontext * ctx, GLuint new_state) 446{ 447 struct intel_context *intel = intel_context(ctx); 448 449 _swrast_InvalidateState(ctx, new_state); 450 _swsetup_InvalidateState(ctx, new_state); 451 _vbo_InvalidateState(ctx, new_state); 452 _tnl_InvalidateState(ctx, new_state); 453 _tnl_invalidate_vertex_state(ctx, new_state); 454 455 intel->NewGLState |= new_state; 456 457 if (intel->vtbl.invalidate_state) 458 intel->vtbl.invalidate_state( intel, new_state ); 459} 460 461static void 462intel_flush(GLcontext *ctx, GLboolean needs_mi_flush) 463{ 464 struct intel_context *intel = intel_context(ctx); 465 466 if (intel->Fallback) 467 _swrast_flush(ctx); 468 469 if (!IS_965(intel->intelScreen->deviceID)) 470 INTEL_FIREVERTICES(intel); 471 472 /* Emit a flush so that any frontbuffer rendering that might have occurred 473 * lands onscreen in a timely manner, even if the X Server doesn't trigger 474 * a flush for us. 475 */ 476 if (needs_mi_flush) 477 intel_batchbuffer_emit_mi_flush(intel->batch); 478 479 if (intel->batch->map != intel->batch->ptr) 480 intel_batchbuffer_flush(intel->batch); 481 482 if ((ctx->DrawBuffer->Name == 0) && intel->front_buffer_dirty) { 483 __DRIscreen *const screen = intel->intelScreen->driScrnPriv; 484 485 if (screen->dri2.loader && 486 (screen->dri2.loader->base.version >= 2) 487 && (screen->dri2.loader->flushFrontBuffer != NULL)) { 488 (*screen->dri2.loader->flushFrontBuffer)(intel->driDrawable, 489 intel->driDrawable->loaderPrivate); 490 491 /* Only clear the dirty bit if front-buffer rendering is no longer 492 * enabled. This is done so that the dirty bit can only be set in 493 * glDrawBuffer. Otherwise the dirty bit would have to be set at 494 * each of N places that do rendering. This has worse performances, 495 * but it is much easier to get correct. 496 */ 497 if (intel->is_front_buffer_rendering) { 498 intel->front_buffer_dirty = GL_FALSE; 499 } 500 } 501 } 502} 503 504void 505intelFlush(GLcontext * ctx) 506{ 507 intel_flush(ctx, GL_FALSE); 508} 509 510static void 511intel_glFlush(GLcontext *ctx) 512{ 513 intel_flush(ctx, GL_TRUE); 514} 515 516void 517intelFinish(GLcontext * ctx) 518{ 519 struct gl_framebuffer *fb = ctx->DrawBuffer; 520 int i; 521 522 intelFlush(ctx); 523 524 for (i = 0; i < fb->_NumColorDrawBuffers; i++) { 525 struct intel_renderbuffer *irb; 526 527 irb = intel_renderbuffer(fb->_ColorDrawBuffers[i]); 528 529 if (irb->region) 530 dri_bo_wait_rendering(irb->region->buffer); 531 } 532 if (fb->_DepthBuffer) { 533 /* XXX: Wait on buffer idle */ 534 } 535} 536 537void 538intelInitDriverFunctions(struct dd_function_table *functions) 539{ 540 _mesa_init_driver_functions(functions); 541 542 functions->Flush = intel_glFlush; 543 functions->Finish = intelFinish; 544 functions->GetString = intelGetString; 545 functions->UpdateState = intelInvalidateState; 546 547 functions->CopyColorTable = _swrast_CopyColorTable; 548 functions->CopyColorSubTable = _swrast_CopyColorSubTable; 549 functions->CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D; 550 functions->CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D; 551 552 intelInitTextureFuncs(functions); 553 intelInitStateFuncs(functions); 554 intelInitClearFuncs(functions); 555 intelInitBufferFuncs(functions); 556 intelInitPixelFuncs(functions); 557} 558 559 560GLboolean 561intelInitContext(struct intel_context *intel, 562 const __GLcontextModes * mesaVis, 563 __DRIcontextPrivate * driContextPriv, 564 void *sharedContextPrivate, 565 struct dd_function_table *functions) 566{ 567 GLcontext *ctx = &intel->ctx; 568 GLcontext *shareCtx = (GLcontext *) sharedContextPrivate; 569 __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv; 570 intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private; 571 int fthrottle_mode; 572 573 if (!_mesa_initialize_context(&intel->ctx, mesaVis, shareCtx, 574 functions, (void *) intel)) { 575 _mesa_printf("%s: failed to init mesa context\n", __FUNCTION__); 576 return GL_FALSE; 577 } 578 579 driContextPriv->driverPrivate = intel; 580 intel->intelScreen = intelScreen; 581 intel->driScreen = sPriv; 582 intel->sarea = intelScreen->sarea; 583 intel->driContext = driContextPriv; 584 585 /* Dri stuff */ 586 intel->hHWContext = driContextPriv->hHWContext; 587 intel->driFd = sPriv->fd; 588 intel->driHwLock = sPriv->lock; 589 590 driParseConfigFiles(&intel->optionCache, &intelScreen->optionCache, 591 intel->driScreen->myNum, 592 IS_965(intelScreen->deviceID) ? "i965" : "i915"); 593 if (intelScreen->deviceID == PCI_CHIP_I865_G) 594 intel->maxBatchSize = 4096; 595 else 596 intel->maxBatchSize = BATCH_SZ; 597 598 intel->bufmgr = intelScreen->bufmgr; 599 intel->ttm = intelScreen->ttm; 600 if (intel->ttm) { 601 int bo_reuse_mode; 602 603 bo_reuse_mode = driQueryOptioni(&intel->optionCache, "bo_reuse"); 604 switch (bo_reuse_mode) { 605 case DRI_CONF_BO_REUSE_DISABLED: 606 break; 607 case DRI_CONF_BO_REUSE_ALL: 608 intel_bufmgr_gem_enable_reuse(intel->bufmgr); 609 break; 610 } 611 } 612 613 /* This doesn't yet catch all non-conformant rendering, but it's a 614 * start. 615 */ 616 if (getenv("INTEL_STRICT_CONFORMANCE")) { 617 unsigned int value = atoi(getenv("INTEL_STRICT_CONFORMANCE")); 618 if (value > 0) { 619 intel->conformance_mode = value; 620 } 621 else { 622 intel->conformance_mode = 1; 623 } 624 } 625 626 if (intel->conformance_mode > 0) { 627 ctx->Const.MinLineWidth = 1.0; 628 ctx->Const.MinLineWidthAA = 1.0; 629 ctx->Const.MaxLineWidth = 1.0; 630 ctx->Const.MaxLineWidthAA = 1.0; 631 ctx->Const.LineWidthGranularity = 1.0; 632 } 633 else { 634 ctx->Const.MinLineWidth = 1.0; 635 ctx->Const.MinLineWidthAA = 1.0; 636 ctx->Const.MaxLineWidth = 5.0; 637 ctx->Const.MaxLineWidthAA = 5.0; 638 ctx->Const.LineWidthGranularity = 0.5; 639 } 640 641 ctx->Const.MinPointSize = 1.0; 642 ctx->Const.MinPointSizeAA = 1.0; 643 ctx->Const.MaxPointSize = 255.0; 644 ctx->Const.MaxPointSizeAA = 3.0; 645 ctx->Const.PointSizeGranularity = 1.0; 646 647 /* reinitialize the context point state. 648 * It depend on constants in __GLcontextRec::Const 649 */ 650 _mesa_init_point(ctx); 651 652 ctx->Const.MaxColorAttachments = 4; /* XXX FBO: review this */ 653 if (IS_965(intelScreen->deviceID)) { 654 if (MAX_WIDTH > 8192) 655 ctx->Const.MaxRenderbufferSize = 8192; 656 } else { 657 if (MAX_WIDTH > 2048) 658 ctx->Const.MaxRenderbufferSize = 2048; 659 } 660 661 /* Initialize the software rasterizer and helper modules. */ 662 _swrast_CreateContext(ctx); 663 _vbo_CreateContext(ctx); 664 _tnl_CreateContext(ctx); 665 _swsetup_CreateContext(ctx); 666 667 /* Configure swrast to match hardware characteristics: */ 668 _swrast_allow_pixel_fog(ctx, GL_FALSE); 669 _swrast_allow_vertex_fog(ctx, GL_TRUE); 670 671 intel->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24; 672 intel->hw_stipple = 1; 673 674 /* XXX FBO: this doesn't seem to be used anywhere */ 675 switch (mesaVis->depthBits) { 676 case 0: /* what to do in this case? */ 677 case 16: 678 intel->polygon_offset_scale = 1.0; 679 break; 680 case 24: 681 intel->polygon_offset_scale = 2.0; /* req'd to pass glean */ 682 break; 683 default: 684 assert(0); 685 break; 686 } 687 688 if (IS_965(intelScreen->deviceID)) 689 intel->polygon_offset_scale /= 0xffff; 690 691 intel->RenderIndex = ~0; 692 693 fthrottle_mode = driQueryOptioni(&intel->optionCache, "fthrottle_mode"); 694 intel->irqsEmitted = 0; 695 696 intel->do_irqs = (intel->intelScreen->irq_active && 697 fthrottle_mode == DRI_CONF_FTHROTTLE_IRQS); 698 699 intel->do_usleeps = (fthrottle_mode == DRI_CONF_FTHROTTLE_USLEEPS); 700 701 if (IS_965(intelScreen->deviceID) && !intel->intelScreen->irq_active) { 702 _mesa_printf("IRQs not active. Exiting\n"); 703 exit(1); 704 } 705 706 intelInitExtensions(ctx, GL_FALSE); 707 708 INTEL_DEBUG = driParseDebugString(getenv("INTEL_DEBUG"), debug_control); 709 if (INTEL_DEBUG & DEBUG_BUFMGR) 710 dri_bufmgr_set_debug(intel->bufmgr, GL_TRUE); 711 712 if (!sPriv->dri2.enabled) 713 intel_recreate_static_regions(intel); 714 715 intel->batch = intel_batchbuffer_alloc(intel); 716 717 intel_bufferobj_init(intel); 718 intel_fbo_init(intel); 719 720 if (intel->ctx.Mesa_DXTn) { 721 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc"); 722 _mesa_enable_extension(ctx, "GL_S3_s3tc"); 723 } 724 else if (driQueryOptionb(&intel->optionCache, "force_s3tc_enable")) { 725 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc"); 726 } 727 728 intel->prim.primitive = ~0; 729 730 /* Force all software fallbacks */ 731 if (driQueryOptionb(&intel->optionCache, "no_rast")) { 732 fprintf(stderr, "disabling 3D rasterization\n"); 733 intel->no_rast = 1; 734 } 735 736 if (driQueryOptionb(&intel->optionCache, "always_flush_batch")) { 737 fprintf(stderr, "flushing batchbuffer before/after each draw call\n"); 738 intel->always_flush_batch = 1; 739 } 740 741 if (driQueryOptionb(&intel->optionCache, "always_flush_cache")) { 742 fprintf(stderr, "flushing GPU caches before/after each draw call\n"); 743 intel->always_flush_cache = 1; 744 } 745 746 /* Disable all hardware rendering (skip emitting batches and fences/waits 747 * to the kernel) 748 */ 749 intel->no_hw = getenv("INTEL_NO_HW") != NULL; 750 751 return GL_TRUE; 752} 753 754void 755intelDestroyContext(__DRIcontextPrivate * driContextPriv) 756{ 757 struct intel_context *intel = 758 (struct intel_context *) driContextPriv->driverPrivate; 759 760 assert(intel); /* should never be null */ 761 if (intel) { 762 GLboolean release_texture_heaps; 763 764 INTEL_FIREVERTICES(intel); 765 766 if (intel->clear.arrayObj) 767 _mesa_delete_array_object(&intel->ctx, intel->clear.arrayObj); 768 769 intel->vtbl.destroy(intel); 770 771 release_texture_heaps = (intel->ctx.Shared->RefCount == 1); 772 _swsetup_DestroyContext(&intel->ctx); 773 _tnl_DestroyContext(&intel->ctx); 774 _vbo_DestroyContext(&intel->ctx); 775 776 _swrast_DestroyContext(&intel->ctx); 777 intel->Fallback = 0; /* don't call _swrast_Flush later */ 778 779 intel_batchbuffer_free(intel->batch); 780 intel->batch = NULL; 781 782 free(intel->prim.vb); 783 intel->prim.vb = NULL; 784 dri_bo_unreference(intel->prim.vb_bo); 785 intel->prim.vb_bo = NULL; 786 787 if (release_texture_heaps) { 788 /* Nothing is currently done here to free texture heaps; 789 * but we're not using the texture heap utilities, so I 790 * rather think we shouldn't. I've taken a look, and can't 791 * find any private texture data hanging around anywhere, but 792 * I'm not yet certain there isn't any at all... 793 */ 794 /* if (INTEL_DEBUG & DEBUG_TEXTURE) 795 fprintf(stderr, "do something to free texture heaps\n"); 796 */ 797 } 798 799 /* XXX In intelMakeCurrent() below, the context's static regions are 800 * referenced inside the frame buffer; it's listed as a hack, 801 * with a comment of "XXX FBO temporary fix-ups!", but 802 * as long as it's there, we should release the regions here. 803 * The do/while loop around the block is used to allow the 804 * "continue" statements inside the block to exit the block, 805 * to avoid many layers of "if" constructs. 806 */ 807 do { 808 __DRIdrawablePrivate * driDrawPriv = intel->driDrawable; 809 struct intel_framebuffer *intel_fb; 810 struct intel_renderbuffer *irbDepth, *irbStencil; 811 if (!driDrawPriv) { 812 /* We're already detached from the drawable; exit this block. */ 813 continue; 814 } 815 intel_fb = (struct intel_framebuffer *) driDrawPriv->driverPrivate; 816 if (!intel_fb) { 817 /* The frame buffer is already gone; exit this block. */ 818 continue; 819 } 820 irbDepth = intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH); 821 irbStencil = intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL); 822 823 /* If the regions of the frame buffer still match the regions 824 * of the context, release them. If they've changed somehow, 825 * leave them alone. 826 */ 827 if (intel_fb->color_rb[0] && intel_fb->color_rb[0]->region == intel->front_region) { 828 intel_renderbuffer_set_region(intel_fb->color_rb[0], NULL); 829 } 830 if (intel_fb->color_rb[1] && intel_fb->color_rb[1]->region == intel->back_region) { 831 intel_renderbuffer_set_region(intel_fb->color_rb[1], NULL); 832 } 833 834 if (irbDepth && irbDepth->region == intel->depth_region) { 835 intel_renderbuffer_set_region(irbDepth, NULL); 836 } 837 /* Usually, the stencil buffer is the same as the depth buffer; 838 * but they're handled separately in MakeCurrent, so we'll 839 * handle them separately here. 840 */ 841 if (irbStencil && irbStencil->region == intel->depth_region) { 842 intel_renderbuffer_set_region(irbStencil, NULL); 843 } 844 } while (0); 845 846 intel_region_release(&intel->front_region); 847 intel_region_release(&intel->back_region); 848 intel_region_release(&intel->depth_region); 849 850 driDestroyOptionCache(&intel->optionCache); 851 852 /* free the Mesa context */ 853 _mesa_free_context_data(&intel->ctx); 854 855 856 } 857} 858 859GLboolean 860intelUnbindContext(__DRIcontextPrivate * driContextPriv) 861{ 862 return GL_TRUE; 863} 864 865GLboolean 866intelMakeCurrent(__DRIcontextPrivate * driContextPriv, 867 __DRIdrawablePrivate * driDrawPriv, 868 __DRIdrawablePrivate * driReadPriv) 869{ 870 __DRIscreenPrivate *psp = driDrawPriv->driScreenPriv; 871 872 if (driContextPriv) { 873 struct intel_context *intel = 874 (struct intel_context *) driContextPriv->driverPrivate; 875 struct intel_framebuffer *intel_fb = 876 (struct intel_framebuffer *) driDrawPriv->driverPrivate; 877 GLframebuffer *readFb = (GLframebuffer *) driReadPriv->driverPrivate; 878 879 if (driContextPriv->driScreenPriv->dri2.enabled) { 880 intel_update_renderbuffers(driContextPriv, driDrawPriv); 881 if (driDrawPriv != driReadPriv) 882 intel_update_renderbuffers(driContextPriv, driReadPriv); 883 } else { 884 /* XXX FBO temporary fix-ups! These are released in 885 * intelDextroyContext(), above. Changes here should be 886 * reflected there. 887 */ 888 /* if the renderbuffers don't have regions, init them from the context */ 889 struct intel_renderbuffer *irbDepth 890 = intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH); 891 struct intel_renderbuffer *irbStencil 892 = intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL); 893 894 if (intel_fb->color_rb[0]) { 895 intel_renderbuffer_set_region(intel_fb->color_rb[0], 896 intel->front_region); 897 } 898 if (intel_fb->color_rb[1]) { 899 intel_renderbuffer_set_region(intel_fb->color_rb[1], 900 intel->back_region); 901 } 902 903 if (irbDepth) { 904 intel_renderbuffer_set_region(irbDepth, intel->depth_region); 905 } 906 if (irbStencil) { 907 intel_renderbuffer_set_region(irbStencil, intel->depth_region); 908 } 909 } 910 911 /* set GLframebuffer size to match window, if needed */ 912 driUpdateFramebufferSize(&intel->ctx, driDrawPriv); 913 914 if (driReadPriv != driDrawPriv) { 915 driUpdateFramebufferSize(&intel->ctx, driReadPriv); 916 } 917 918 _mesa_make_current(&intel->ctx, &intel_fb->Base, readFb); 919 920 /* The drawbuffer won't always be updated by _mesa_make_current: 921 */ 922 if (intel->ctx.DrawBuffer == &intel_fb->Base) { 923 924 if (intel->driReadDrawable != driReadPriv) 925 intel->driReadDrawable = driReadPriv; 926 927 if (intel->driDrawable != driDrawPriv) { 928 if (driDrawPriv->swap_interval == (unsigned)-1) { 929 int i; 930 931 driDrawPriv->vblFlags = (intel->intelScreen->irq_active != 0) 932 ? driGetDefaultVBlankFlags(&intel->optionCache) 933 : VBLANK_FLAG_NO_IRQ; 934 935 /* Prevent error printf if one crtc is disabled, this will 936 * be properly calculated in intelWindowMoved() next. 937 */ 938 driDrawPriv->vblFlags = intelFixupVblank(intel, driDrawPriv); 939 940 (*psp->systemTime->getUST) (&intel_fb->swap_ust); 941 driDrawableInitVBlank(driDrawPriv); 942 intel_fb->vbl_waited = driDrawPriv->vblSeq; 943 944 for (i = 0; i < 2; i++) { 945 if (intel_fb->color_rb[i]) 946 intel_fb->color_rb[i]->vbl_pending = driDrawPriv->vblSeq; 947 } 948 } 949 intel->driDrawable = driDrawPriv; 950 intelWindowMoved(intel); 951 } 952 953 intel_draw_buffer(&intel->ctx, &intel_fb->Base); 954 } 955 } 956 else { 957 _mesa_make_current(NULL, NULL, NULL); 958 } 959 960 return GL_TRUE; 961} 962 963static void 964intelContendedLock(struct intel_context *intel, GLuint flags) 965{ 966 __DRIdrawablePrivate *dPriv = intel->driDrawable; 967 __DRIscreenPrivate *sPriv = intel->driScreen; 968 volatile drm_i915_sarea_t *sarea = intel->sarea; 969 int me = intel->hHWContext; 970 971 drmGetLock(intel->driFd, intel->hHWContext, flags); 972 intel->locked = 1; 973 974 if (INTEL_DEBUG & DEBUG_LOCK) 975 _mesa_printf("%s - got contended lock\n", __progname); 976 977 /* If the window moved, may need to set a new cliprect now. 978 * 979 * NOTE: This releases and regains the hw lock, so all state 980 * checking must be done *after* this call: 981 */ 982 if (dPriv) 983 DRI_VALIDATE_DRAWABLE_INFO(sPriv, dPriv); 984 985 if (sarea && sarea->ctxOwner != me) { 986 if (INTEL_DEBUG & DEBUG_BUFMGR) { 987 fprintf(stderr, "Lost Context: sarea->ctxOwner %x me %x\n", 988 sarea->ctxOwner, me); 989 } 990 sarea->ctxOwner = me; 991 } 992 993 /* If the last consumer of the texture memory wasn't us, notify the fake 994 * bufmgr and record the new owner. We should have the memory shared 995 * between contexts of a single fake bufmgr, but this will at least make 996 * things correct for now. 997 */ 998 if (!intel->ttm && sarea->texAge != intel->hHWContext) { 999 sarea->texAge = intel->hHWContext; 1000 intel_bufmgr_fake_contended_lock_take(intel->bufmgr); 1001 if (INTEL_DEBUG & DEBUG_BATCH) 1002 intel_decode_context_reset(); 1003 if (INTEL_DEBUG & DEBUG_BUFMGR) 1004 fprintf(stderr, "Lost Textures: sarea->texAge %x hw context %x\n", 1005 sarea->ctxOwner, intel->hHWContext); 1006 } 1007 1008 /* Drawable changed? 1009 */ 1010 if (dPriv && intel->lastStamp != dPriv->lastStamp) { 1011 intelWindowMoved(intel); 1012 intel->lastStamp = dPriv->lastStamp; 1013 } 1014} 1015 1016 1017_glthread_DECLARE_STATIC_MUTEX(lockMutex); 1018 1019/* Lock the hardware and validate our state. 1020 */ 1021void LOCK_HARDWARE( struct intel_context *intel ) 1022{ 1023 __DRIdrawable *dPriv = intel->driDrawable; 1024 __DRIscreen *sPriv = intel->driScreen; 1025 char __ret = 0; 1026 struct intel_framebuffer *intel_fb = NULL; 1027 struct intel_renderbuffer *intel_rb = NULL; 1028 1029 _glthread_LOCK_MUTEX(lockMutex); 1030 assert(!intel->locked); 1031 intel->locked = 1; 1032 1033 if (intel->driDrawable) { 1034 intel_fb = intel->driDrawable->driverPrivate; 1035 1036 if (intel_fb) 1037 intel_rb = 1038 intel_get_renderbuffer(&intel_fb->Base, 1039 intel_fb->Base._ColorDrawBufferIndexes[0]); 1040 } 1041 1042 if (intel_rb && dPriv->vblFlags && 1043 !(dPriv->vblFlags & VBLANK_FLAG_NO_IRQ) && 1044 (intel_fb->vbl_waited - intel_rb->vbl_pending) > (1<<23)) { 1045 drmVBlank vbl; 1046 1047 vbl.request.type = DRM_VBLANK_ABSOLUTE; 1048 1049 if ( dPriv->vblFlags & VBLANK_FLAG_SECONDARY ) { 1050 vbl.request.type |= DRM_VBLANK_SECONDARY; 1051 } 1052 1053 vbl.request.sequence = intel_rb->vbl_pending; 1054 drmWaitVBlank(intel->driFd, &vbl); 1055 intel_fb->vbl_waited = vbl.reply.sequence; 1056 } 1057 1058 if (!sPriv->dri2.enabled) { 1059 DRM_CAS(intel->driHwLock, intel->hHWContext, 1060 (DRM_LOCK_HELD|intel->hHWContext), __ret); 1061 1062 if (__ret) 1063 intelContendedLock( intel, 0 ); 1064 } 1065 1066 1067 if (INTEL_DEBUG & DEBUG_LOCK) 1068 _mesa_printf("%s - locked\n", __progname); 1069} 1070 1071 1072/* Unlock the hardware using the global current context 1073 */ 1074void UNLOCK_HARDWARE( struct intel_context *intel ) 1075{ 1076 __DRIscreen *sPriv = intel->driScreen; 1077 1078 intel->vtbl.note_unlock( intel ); 1079 intel->locked = 0; 1080 1081 if (!sPriv->dri2.enabled) 1082 DRM_UNLOCK(intel->driFd, intel->driHwLock, intel->hHWContext); 1083 1084 _glthread_UNLOCK_MUTEX(lockMutex); 1085 1086 if (INTEL_DEBUG & DEBUG_LOCK) 1087 _mesa_printf("%s - unlocked\n", __progname); 1088 1089 /** 1090 * Nothing should be left in batch outside of LOCK/UNLOCK which references 1091 * cliprects. 1092 */ 1093 if (intel->batch->cliprect_mode == REFERENCES_CLIPRECTS) 1094 intel_batchbuffer_flush(intel->batch); 1095} 1096 1097