src/mesa/drivers/dri/intel/intel_screen.c

   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 #include "glheader.h"
  29 #include "context.h"
  30 #include "framebuffer.h"
  31 #include "matrix.h"
  32 #include "renderbuffer.h"
  33 #include "simple_list.h"
  34 #include "utils.h"
  35 #include "vblank.h"
  36 #include "xmlpool.h"
  37
  38
  39 #include "intel_screen.h"
  40
  41 #include "intel_buffers.h"
  42 #include "intel_tex.h"
  43 #include "intel_span.h"
  44 #include "intel_tris.h"
  45 #include "intel_ioctl.h"
  46 #include "intel_fbo.h"
  47
  48 #include "i830_dri.h"
  49 #include "dri_bufmgr.h"
  50 #include "intel_regions.h"
  51 #include "intel_batchbuffer.h"
  52
  53 #include "intel_bufmgr_ttm.h"
  54
  55 PUBLIC const char __driConfigOptions[] =
  56    DRI_CONF_BEGIN DRI_CONF_SECTION_PERFORMANCE
  57    DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
  58    DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
  59    DRI_CONF_SECTION_END DRI_CONF_SECTION_QUALITY
  60    DRI_CONF_FORCE_S3TC_ENABLE(false)
  61    DRI_CONF_ALLOW_LARGE_TEXTURES(1)
  62    DRI_CONF_SECTION_END DRI_CONF_END;
  63      const GLuint __driNConfigOptions = 4;
  64
  65 #ifdef USE_NEW_INTERFACE
  66      static PFNGLXCREATECONTEXTMODES create_context_modes = NULL;
  67 #endif /*USE_NEW_INTERFACE */
  68
  69      extern const struct dri_extension card_extensions[];
  70      extern const struct dri_extension ttm_extensions[];
  71
  72 /**
  73  * Map all the memory regions described by the screen.
  74  * \return GL_TRUE if success, GL_FALSE if error.
  75  */
  76 GLboolean
  77 intelMapScreenRegions(__DRIscreenPrivate * sPriv)
  78 {
  79    intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private;
  80
  81    if (intelScreen->front.handle) {
  82       if (drmMap(sPriv->fd,
  83                  intelScreen->front.handle,
  84                  intelScreen->front.size,
  85                  (drmAddress *) & intelScreen->front.map) != 0) {
  86          _mesa_problem(NULL, "drmMap(frontbuffer) failed!");
  87          return GL_FALSE;
  88       }
  89    }
  90    else {
  91       _mesa_warning(NULL, "no front buffer handle in intelMapScreenRegions!");
  92    }
  93
  94    if (0)
  95       _mesa_printf("Back 0x%08x ", intelScreen->back.handle);
  96    if (drmMap(sPriv->fd,
  97               intelScreen->back.handle,
  98               intelScreen->back.size,
  99               (drmAddress *) & intelScreen->back.map) != 0) {
 100       intelUnmapScreenRegions(intelScreen);
 101       return GL_FALSE;
 102    }
 103
 104    if (intelScreen->third.handle) {
 105       if (0)
 106          _mesa_printf("Third 0x%08x ", intelScreen->third.handle);
 107       if (drmMap(sPriv->fd,
 108                  intelScreen->third.handle,
 109                  intelScreen->third.size,
 110                  (drmAddress *) & intelScreen->third.map) != 0) {
 111          intelUnmapScreenRegions(intelScreen);
 112          return GL_FALSE;
 113       }
 114    }
 115
 116    if (0)
 117       _mesa_printf("Depth 0x%08x ", intelScreen->depth.handle);
 118    if (drmMap(sPriv->fd,
 119               intelScreen->depth.handle,
 120               intelScreen->depth.size,
 121               (drmAddress *) & intelScreen->depth.map) != 0) {
 122       intelUnmapScreenRegions(intelScreen);
 123       return GL_FALSE;
 124    }
 125
 126    if (0)
 127       _mesa_printf("TEX 0x%08x ", intelScreen->tex.handle);
 128    if (intelScreen->tex.size != 0) {
 129       if (drmMap(sPriv->fd,
 130                  intelScreen->tex.handle,
 131                  intelScreen->tex.size,
 132                  (drmAddress *) & intelScreen->tex.map) != 0) {
 133          intelUnmapScreenRegions(intelScreen);
 134          return GL_FALSE;
 135       }
 136    }
 137
 138    if (0)
 139       printf("Mappings:  front: %p  back: %p  third: %p  depth: %p  tex: %p\n",
 140              intelScreen->front.map,
 141              intelScreen->back.map, intelScreen->third.map,
 142              intelScreen->depth.map, intelScreen->tex.map);
 143    return GL_TRUE;
 144 }
 145
 146 /** Driver-specific fence emit implementation for the fake memory manager. */
 147 static unsigned int
 148 intel_fence_emit(void *private)
 149 {
 150    intelScreenPrivate *intelScreen = (intelScreenPrivate *)private;
 151    unsigned int fence;
 152
 153    /* XXX: Need to emit a flush, if we haven't already (at least with the
 154     * current batchbuffer implementation, we have).
 155     */
 156
 157    fence = intelEmitIrqLocked(intelScreen);
 158
 159    return fence;
 160 }
 161
 162 /** Driver-specific fence wait implementation for the fake memory manager. */
 163 static int
 164 intel_fence_wait(void *private, unsigned int cookie)
 165 {
 166    intelScreenPrivate *intelScreen = (intelScreenPrivate *)private;
 167
 168    intelWaitIrq(intelScreen, cookie);
 169
 170    return 0;
 171 }
 172
 173 static struct intel_region *
 174 intel_recreate_static(intelScreenPrivate *intelScreen,
 175                       struct intel_region *region,
 176                       intelRegion *region_desc,
 177                       GLuint mem_type)
 178 {
 179   if (region) {
 180     intel_region_update_static(intelScreen, region, mem_type,
 181                                region_desc->bo_handle, region_desc->offset,
 182                                region_desc->map, intelScreen->cpp,
 183                                region_desc->pitch / intelScreen->cpp,
 184                                intelScreen->height);
 185   } else {
 186     region = intel_region_create_static(intelScreen, mem_type,
 187                                         region_desc->bo_handle,
 188                                         region_desc->offset,
 189                                         region_desc->map, intelScreen->cpp,
 190                                         region_desc->pitch / intelScreen->cpp,
 191                                         intelScreen->height);
 192   }
 193
 194   assert(region->buffer != NULL);
 195
 196   return region;
 197 }
 198
 199
 200 /* Create intel_region structs to describe the static front,back,depth
 201  * buffers created by the xserver.
 202  *
 203  * Although FBO's mean we now no longer use these as render targets in
 204  * all circumstances, they won't go away until the back and depth
 205  * buffers become private, and the front and rotated buffers will
 206  * remain even then.
 207  *
 208  * Note that these don't allocate video memory, just describe
 209  * allocations alread made by the X server.
 210  */
 211 static void
 212 intel_recreate_static_regions(intelScreenPrivate *intelScreen)
 213 {
 214    intelScreen->front_region =
 215       intel_recreate_static(intelScreen,
 216                             intelScreen->front_region,
 217                             &intelScreen->front,
 218                             DRM_BO_FLAG_MEM_TT);
 219
 220    /* The rotated region is only used for old DDXes that didn't handle rotation
 221 \    * on their own.
 222     */
 223    if (intelScreen->driScrnPriv->ddx_version.minor < 8) {
 224       intelScreen->rotated_region =
 225          intel_recreate_static(intelScreen,
 226                                intelScreen->rotated_region,
 227                                &intelScreen->rotated,
 228                                DRM_BO_FLAG_MEM_TT);
 229    }
 230
 231    intelScreen->back_region =
 232       intel_recreate_static(intelScreen,
 233                             intelScreen->back_region,
 234                             &intelScreen->back,
 235                             DRM_BO_FLAG_MEM_TT);
 236
 237    if (intelScreen->third.handle) {
 238       intelScreen->third_region =
 239          intel_recreate_static(intelScreen,
 240                                intelScreen->third_region,
 241                                &intelScreen->third,
 242                                DRM_BO_FLAG_MEM_TT);
 243    }
 244
 245    /* Still assumes front.cpp == depth.cpp.  We can kill this when we move to
 246     * private buffers.
 247     */
 248    intelScreen->depth_region =
 249       intel_recreate_static(intelScreen,
 250                             intelScreen->depth_region,
 251                             &intelScreen->depth,
 252                             DRM_BO_FLAG_MEM_TT);
 253 }
 254
 255 /**
 256  * Use the information in the sarea to update the screen parameters
 257  * related to screen rotation. Needs to be called locked.
 258  */
 259 void
 260 intelUpdateScreenRotation(__DRIscreenPrivate * sPriv, drmI830Sarea * sarea)
 261 {
 262    intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private;
 263
 264    intelUnmapScreenRegions(intelScreen);
 265    intelUpdateScreenFromSAREA(intelScreen, sarea);
 266    if (!intelMapScreenRegions(sPriv)) {
 267       fprintf(stderr, "ERROR Remapping screen regions!!!\n");
 268    }
 269    intel_recreate_static_regions(intelScreen);
 270 }
 271
 272
 273 void
 274 intelUnmapScreenRegions(intelScreenPrivate * intelScreen)
 275 {
 276 #define REALLY_UNMAP 1
 277    if (intelScreen->front.map) {
 278 #if REALLY_UNMAP
 279       if (drmUnmap(intelScreen->front.map, intelScreen->front.size) != 0)
 280          printf("drmUnmap front failed!\n");
 281 #endif
 282       intelScreen->front.map = NULL;
 283    }
 284    if (intelScreen->back.map) {
 285 #if REALLY_UNMAP
 286       if (drmUnmap(intelScreen->back.map, intelScreen->back.size) != 0)
 287          printf("drmUnmap back failed!\n");
 288 #endif
 289       intelScreen->back.map = NULL;
 290    }
 291    if (intelScreen->third.map) {
 292 #if REALLY_UNMAP
 293       if (drmUnmap(intelScreen->third.map, intelScreen->third.size) != 0)
 294          printf("drmUnmap third failed!\n");
 295 #endif
 296       intelScreen->third.map = NULL;
 297    }
 298    if (intelScreen->depth.map) {
 299 #if REALLY_UNMAP
 300       drmUnmap(intelScreen->depth.map, intelScreen->depth.size);
 301       intelScreen->depth.map = NULL;
 302 #endif
 303    }
 304    if (intelScreen->tex.map) {
 305 #if REALLY_UNMAP
 306       drmUnmap(intelScreen->tex.map, intelScreen->tex.size);
 307       intelScreen->tex.map = NULL;
 308 #endif
 309    }
 310 }
 311
 312
 313 static void
 314 intelPrintDRIInfo(intelScreenPrivate * intelScreen,
 315                   __DRIscreenPrivate * sPriv, I830DRIPtr gDRIPriv)
 316 {
 317    fprintf(stderr, "*** Front size:   0x%x  offset: 0x%x  pitch: %d\n",
 318            intelScreen->front.size, intelScreen->front.offset,
 319            intelScreen->front.pitch);
 320    fprintf(stderr, "*** Back size:    0x%x  offset: 0x%x  pitch: %d\n",
 321            intelScreen->back.size, intelScreen->back.offset,
 322            intelScreen->back.pitch);
 323    fprintf(stderr, "*** Depth size:   0x%x  offset: 0x%x  pitch: %d\n",
 324            intelScreen->depth.size, intelScreen->depth.offset,
 325            intelScreen->depth.pitch);
 326    fprintf(stderr, "*** Rotated size: 0x%x  offset: 0x%x  pitch: %d\n",
 327            intelScreen->rotated.size, intelScreen->rotated.offset,
 328            intelScreen->rotated.pitch);
 329    fprintf(stderr, "*** Texture size: 0x%x  offset: 0x%x\n",
 330            intelScreen->tex.size, intelScreen->tex.offset);
 331    fprintf(stderr, "*** Memory : 0x%x\n", gDRIPriv->mem);
 332 }
 333
 334
 335 static void
 336 intelPrintSAREA(const drmI830Sarea * sarea)
 337 {
 338    fprintf(stderr, "SAREA: sarea width %d  height %d\n", sarea->width,
 339            sarea->height);
 340    fprintf(stderr, "SAREA: pitch: %d\n", sarea->pitch);
 341    fprintf(stderr,
 342            "SAREA: front offset: 0x%08x  size: 0x%x  handle: 0x%x\n",
 343            sarea->front_offset, sarea->front_size,
 344            (unsigned) sarea->front_handle);
 345    fprintf(stderr,
 346            "SAREA: back  offset: 0x%08x  size: 0x%x  handle: 0x%x\n",
 347            sarea->back_offset, sarea->back_size,
 348            (unsigned) sarea->back_handle);
 349    fprintf(stderr, "SAREA: depth offset: 0x%08x  size: 0x%x  handle: 0x%x\n",
 350            sarea->depth_offset, sarea->depth_size,
 351            (unsigned) sarea->depth_handle);
 352    fprintf(stderr, "SAREA: tex   offset: 0x%08x  size: 0x%x  handle: 0x%x\n",
 353            sarea->tex_offset, sarea->tex_size, (unsigned) sarea->tex_handle);
 354    fprintf(stderr, "SAREA: rotation: %d\n", sarea->rotation);
 355    fprintf(stderr,
 356            "SAREA: rotated offset: 0x%08x  size: 0x%x\n",
 357            sarea->rotated_offset, sarea->rotated_size);
 358    fprintf(stderr, "SAREA: rotated pitch: %d\n", sarea->rotated_pitch);
 359 }
 360
 361
 362 /**
 363  * A number of the screen parameters are obtained/computed from
 364  * information in the SAREA.  This function updates those parameters.
 365  */
 366 void
 367 intelUpdateScreenFromSAREA(intelScreenPrivate * intelScreen,
 368                            drmI830Sarea * sarea)
 369 {
 370    intelScreen->width = sarea->width;
 371    intelScreen->height = sarea->height;
 372
 373    intelScreen->front.offset = sarea->front_offset;
 374    intelScreen->front.pitch = sarea->pitch * intelScreen->cpp;
 375    intelScreen->front.handle = sarea->front_handle;
 376    intelScreen->front.size = sarea->front_size;
 377
 378    intelScreen->back.offset = sarea->back_offset;
 379    intelScreen->back.pitch = sarea->pitch * intelScreen->cpp;
 380    intelScreen->back.handle = sarea->back_handle;
 381    intelScreen->back.size = sarea->back_size;
 382
 383    if (intelScreen->driScrnPriv->ddx_version.minor >= 8) {
 384       intelScreen->third.offset = sarea->third_offset;
 385       intelScreen->third.pitch = sarea->pitch * intelScreen->cpp;
 386       intelScreen->third.handle = sarea->third_handle;
 387       intelScreen->third.size = sarea->third_size;
 388    }
 389
 390    intelScreen->depth.offset = sarea->depth_offset;
 391    intelScreen->depth.pitch = sarea->pitch * intelScreen->cpp;
 392    intelScreen->depth.handle = sarea->depth_handle;
 393    intelScreen->depth.size = sarea->depth_size;
 394
 395    if (intelScreen->driScrnPriv->ddx_version.minor >= 9) {
 396       intelScreen->front.bo_handle = sarea->front_bo_handle;
 397       intelScreen->back.bo_handle = sarea->back_bo_handle;
 398       intelScreen->third.bo_handle = sarea->third_bo_handle;
 399       intelScreen->depth.bo_handle = sarea->depth_bo_handle;
 400    } else {
 401       intelScreen->front.bo_handle = -1;
 402       intelScreen->back.bo_handle = -1;
 403       intelScreen->third.bo_handle = -1;
 404       intelScreen->depth.bo_handle = -1;
 405    }
 406
 407    intelScreen->tex.offset = sarea->tex_offset;
 408    intelScreen->logTextureGranularity = sarea->log_tex_granularity;
 409    intelScreen->tex.handle = sarea->tex_handle;
 410    intelScreen->tex.size = sarea->tex_size;
 411
 412    intelScreen->rotated.offset = sarea->rotated_offset;
 413    intelScreen->rotated.pitch = sarea->rotated_pitch * intelScreen->cpp;
 414    intelScreen->rotated.size = sarea->rotated_size;
 415    intelScreen->current_rotation = sarea->rotation;
 416    matrix23Rotate(&intelScreen->rotMatrix,
 417                   sarea->width, sarea->height, sarea->rotation);
 418    intelScreen->rotatedWidth = sarea->virtualX;
 419    intelScreen->rotatedHeight = sarea->virtualY;
 420
 421    if (0)
 422       intelPrintSAREA(sarea);
 423 }
 424
 425 static const __DRItexOffsetExtension intelTexOffsetExtension = {
 426    { __DRI_TEX_OFFSET },
 427    intelSetTexOffset,
 428 };
 429
 430 static const __DRIextension *intelExtensions[] = {
 431     &driReadDrawableExtension,
 432     &driCopySubBufferExtension.base,
 433     &driSwapControlExtension.base,
 434     &driFrameTrackingExtension.base,
 435     &driMediaStreamCounterExtension.base,
 436     &intelTexOffsetExtension.base,
 437     NULL
 438 };
 439
 440
 441 static GLboolean intelInitDriver(__DRIscreenPrivate *sPriv)
 442 {
 443    intelScreenPrivate *intelScreen;
 444    I830DRIPtr gDRIPriv = (I830DRIPtr) sPriv->pDevPriv;
 445    drmI830Sarea *sarea;
 446
 447    if (sPriv->devPrivSize != sizeof(I830DRIRec)) {
 448       fprintf(stderr,
 449               "\nERROR!  sizeof(I830DRIRec) does not match passed size from device driver\n");
 450       return GL_FALSE;
 451    }
 452
 453    /* Allocate the private area */
 454    intelScreen = (intelScreenPrivate *) CALLOC(sizeof(intelScreenPrivate));
 455    if (!intelScreen) {
 456       fprintf(stderr, "\nERROR!  Allocating private area failed\n");
 457       return GL_FALSE;
 458    }
 459    /* parse information in __driConfigOptions */
 460    driParseOptionInfo(&intelScreen->optionCache,
 461                       __driConfigOptions, __driNConfigOptions);
 462
 463    intelScreen->driScrnPriv = sPriv;
 464    sPriv->private = (void *) intelScreen;
 465    intelScreen->sarea_priv_offset = gDRIPriv->sarea_priv_offset;
 466    sarea = (drmI830Sarea *)
 467       (((GLubyte *) sPriv->pSAREA) + intelScreen->sarea_priv_offset);
 468
 469    intelScreen->deviceID = gDRIPriv->deviceID;
 470    if (intelScreen->deviceID == PCI_CHIP_I865_G)
 471       intelScreen->maxBatchSize = 4096;
 472    else
 473       intelScreen->maxBatchSize = BATCH_SZ;
 474
 475    intelScreen->mem = gDRIPriv->mem;
 476    intelScreen->cpp = gDRIPriv->cpp;
 477
 478    switch (gDRIPriv->bitsPerPixel) {
 479    case 16:
 480       intelScreen->fbFormat = DV_PF_565;
 481       break;
 482    case 32:
 483       intelScreen->fbFormat = DV_PF_8888;
 484       break;
 485    default:
 486       exit(1);
 487       break;
 488    }
 489
 490    intelUpdateScreenFromSAREA(intelScreen, sarea);
 491
 492    if (!intelMapScreenRegions(sPriv)) {
 493       fprintf(stderr, "\nERROR!  mapping regions\n");
 494       _mesa_free(intelScreen);
 495       sPriv->private = NULL;
 496       return GL_FALSE;
 497    }
 498
 499    intelScreen->sarea_priv_offset = gDRIPriv->sarea_priv_offset;
 500
 501    if (0)
 502       intelPrintDRIInfo(intelScreen, sPriv, gDRIPriv);
 503
 504    intelScreen->drmMinor = sPriv->drm_version.minor;
 505
 506    /* Determine if IRQs are active? */
 507    {
 508       int ret;
 509       drmI830GetParam gp;
 510
 511       gp.param = I830_PARAM_IRQ_ACTIVE;
 512       gp.value = &intelScreen->irq_active;
 513
 514       ret = drmCommandWriteRead(sPriv->fd, DRM_I830_GETPARAM,
 515                                 &gp, sizeof(gp));
 516       if (ret) {
 517          fprintf(stderr, "drmI830GetParam: %d\n", ret);
 518          return GL_FALSE;
 519       }
 520    }
 521
 522    /* Determine if batchbuffers are allowed */
 523    {
 524       int ret;
 525       drmI830GetParam gp;
 526
 527       gp.param = I830_PARAM_ALLOW_BATCHBUFFER;
 528       gp.value = &intelScreen->allow_batchbuffer;
 529
 530       ret = drmCommandWriteRead(sPriv->fd, DRM_I830_GETPARAM,
 531                                 &gp, sizeof(gp));
 532       if (ret) {
 533          fprintf(stderr, "drmI830GetParam: (%d) %d\n", gp.param, ret);
 534          return GL_FALSE;
 535       }
 536    }
 537
 538    sPriv->extensions = intelExtensions;
 539
 540    /* If we've got a new enough DDX that's initializing TTM and giving us
 541     * object handles for the shared buffers, use that.
 542     */
 543    intelScreen->ttm = GL_FALSE;
 544    if (getenv("INTEL_NO_TTM") == NULL &&
 545        intelScreen->driScrnPriv->ddx_version.minor >= 9 &&
 546        intelScreen->drmMinor >= 11 &&
 547        intelScreen->front.bo_handle != -1) {
 548       intelScreen->bufmgr = intel_bufmgr_ttm_init(sPriv->fd,
 549                                                   DRM_FENCE_TYPE_EXE,
 550                                                   DRM_FENCE_TYPE_EXE |
 551                                                   DRM_I915_FENCE_TYPE_RW,
 552                                                   BATCH_SZ);
 553       if (intelScreen->bufmgr != NULL)
 554          intelScreen->ttm = GL_TRUE;
 555    }
 556    /* Otherwise, use the classic buffer manager. */
 557    if (intelScreen->bufmgr == NULL) {
 558       if (intelScreen->tex.size == 0) {
 559          fprintf(stderr, "[%s:%u] Error initializing buffer manager.\n",
 560                  __func__, __LINE__);
 561          return GL_FALSE;
 562       }
 563       fprintf(stderr, "[%s:%u] Failed to init TTM buffer manager, falling back"
 564               " to classic.\n", __func__, __LINE__);
 565       intelScreen->bufmgr = dri_bufmgr_fake_init(intelScreen->tex.offset,
 566                                                  intelScreen->tex.map,
 567                                                  intelScreen->tex.size,
 568                                                  intel_fence_emit,
 569                                                  intel_fence_wait,
 570                                                  intelScreen);
 571    }
 572
 573    intel_recreate_static_regions(intelScreen);
 574
 575    return GL_TRUE;
 576 }
 577
 578
 579 static void
 580 intelDestroyScreen(__DRIscreenPrivate * sPriv)
 581 {
 582    intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private;
 583
 584    intelUnmapScreenRegions(intelScreen);
 585
 586    dri_bufmgr_destroy(intelScreen->bufmgr);
 587    FREE(intelScreen);
 588    sPriv->private = NULL;
 589 }
 590
 591
 592 /**
 593  * This is called when we need to set up GL rendering to a new X window.
 594  */
 595 static GLboolean
 596 intelCreateBuffer(__DRIscreenPrivate * driScrnPriv,
 597                   __DRIdrawablePrivate * driDrawPriv,
 598                   const __GLcontextModes * mesaVis, GLboolean isPixmap)
 599 {
 600    intelScreenPrivate *screen = (intelScreenPrivate *) driScrnPriv->private;
 601
 602    if (isPixmap) {
 603       return GL_FALSE;          /* not implemented */
 604    }
 605    else {
 606       GLboolean swStencil = (mesaVis->stencilBits > 0 &&
 607                              mesaVis->depthBits != 24);
 608       GLenum rgbFormat = (mesaVis->redBits == 5 ? GL_RGB5 : GL_RGBA8);
 609
 610       struct intel_framebuffer *intel_fb = CALLOC_STRUCT(intel_framebuffer);
 611
 612       if (!intel_fb)
 613          return GL_FALSE;
 614
 615       _mesa_initialize_framebuffer(&intel_fb->Base, mesaVis);
 616
 617       /* setup the hardware-based renderbuffers */
 618       {
 619          intel_fb->color_rb[0]
 620             = intel_create_renderbuffer(rgbFormat,
 621                                         screen->width, screen->height,
 622                                         screen->front.offset,
 623                                         screen->front.pitch,
 624                                         screen->cpp,
 625                                         screen->front.map);
 626          intel_set_span_functions(&intel_fb->color_rb[0]->Base);
 627          _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_FRONT_LEFT,
 628                                 &intel_fb->color_rb[0]->Base);
 629       }
 630
 631       if (mesaVis->doubleBufferMode) {
 632          intel_fb->color_rb[1]
 633             = intel_create_renderbuffer(rgbFormat,
 634                                         screen->width, screen->height,
 635                                         screen->back.offset,
 636                                         screen->back.pitch,
 637                                         screen->cpp,
 638                                         screen->back.map);
 639          intel_set_span_functions(&intel_fb->color_rb[1]->Base);
 640          _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_BACK_LEFT,
 641                                 &intel_fb->color_rb[1]->Base);
 642
 643          if (screen->third.handle) {
 644             struct gl_renderbuffer *tmp_rb = NULL;
 645
 646             intel_fb->color_rb[2]
 647                = intel_create_renderbuffer(rgbFormat,
 648                                            screen->width, screen->height,
 649                                            screen->third.offset,
 650                                            screen->third.pitch,
 651                                            screen->cpp,
 652                                            screen->third.map);
 653             intel_set_span_functions(&intel_fb->color_rb[2]->Base);
 654             _mesa_reference_renderbuffer(&tmp_rb, &intel_fb->color_rb[2]->Base);
 655          }
 656       }
 657
 658       if (mesaVis->depthBits == 24) {
 659          if (mesaVis->stencilBits == 8) {
 660             /* combined depth/stencil buffer */
 661             struct intel_renderbuffer *depthStencilRb
 662                = intel_create_renderbuffer(GL_DEPTH24_STENCIL8_EXT,
 663                                            screen->width, screen->height,
 664                                            screen->depth.offset,
 665                                            screen->depth.pitch,
 666                                            screen->cpp,    /* 4! */
 667                                            screen->depth.map);
 668             intel_set_span_functions(&depthStencilRb->Base);
 669             /* note: bind RB to two attachment points */
 670             _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_DEPTH,
 671                                    &depthStencilRb->Base);
 672             _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_STENCIL,
 673                                    &depthStencilRb->Base);
 674          } else {
 675             struct intel_renderbuffer *depthRb
 676                = intel_create_renderbuffer(GL_DEPTH_COMPONENT24,
 677                                            screen->width, screen->height,
 678                                            screen->depth.offset,
 679                                            screen->depth.pitch,
 680                                            screen->cpp,    /* 4! */
 681                                            screen->depth.map);
 682             intel_set_span_functions(&depthRb->Base);
 683             _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_DEPTH,
 684                                    &depthRb->Base);
 685          }
 686       }
 687       else if (mesaVis->depthBits == 16) {
 688          /* just 16-bit depth buffer, no hw stencil */
 689          struct intel_renderbuffer *depthRb
 690             = intel_create_renderbuffer(GL_DEPTH_COMPONENT16,
 691                                         screen->width, screen->height,
 692                                         screen->depth.offset,
 693                                         screen->depth.pitch,
 694                                         screen->cpp,    /* 2! */
 695                                         screen->depth.map);
 696          intel_set_span_functions(&depthRb->Base);
 697          _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_DEPTH, &depthRb->Base);
 698       }
 699
 700       /* now add any/all software-based renderbuffers we may need */
 701       _mesa_add_soft_renderbuffers(&intel_fb->Base,
 702                                    GL_FALSE, /* never sw color */
 703                                    GL_FALSE, /* never sw depth */
 704                                    swStencil, mesaVis->accumRedBits > 0,
 705                                    GL_FALSE, /* never sw alpha */
 706                                    GL_FALSE  /* never sw aux */ );
 707       driDrawPriv->driverPrivate = (void *) intel_fb;
 708
 709       return GL_TRUE;
 710    }
 711 }
 712
 713 static void
 714 intelDestroyBuffer(__DRIdrawablePrivate * driDrawPriv)
 715 {
 716    _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
 717 }
 718
 719
 720 /**
 721  * Get information about previous buffer swaps.
 722  */
 723 static int
 724 intelGetSwapInfo(__DRIdrawablePrivate * dPriv, __DRIswapInfo * sInfo)
 725 {
 726    struct intel_framebuffer *intel_fb;
 727
 728    if ((dPriv == NULL) || (dPriv->driverPrivate == NULL)
 729        || (sInfo == NULL)) {
 730       return -1;
 731    }
 732
 733    intel_fb = dPriv->driverPrivate;
 734    sInfo->swap_count = intel_fb->swap_count;
 735    sInfo->swap_ust = intel_fb->swap_ust;
 736    sInfo->swap_missed_count = intel_fb->swap_missed_count;
 737
 738    sInfo->swap_missed_usage = (sInfo->swap_missed_count != 0)
 739       ? driCalculateSwapUsage(dPriv, 0, intel_fb->swap_missed_ust)
 740       : 0.0;
 741
 742    return 0;
 743 }
 744
 745
 746 /* There are probably better ways to do this, such as an
 747  * init-designated function to register chipids and createcontext
 748  * functions.
 749  */
 750 extern GLboolean i830CreateContext(const __GLcontextModes * mesaVis,
 751                                    __DRIcontextPrivate * driContextPriv,
 752                                    void *sharedContextPrivate);
 753
 754 extern GLboolean i915CreateContext(const __GLcontextModes * mesaVis,
 755                                    __DRIcontextPrivate * driContextPriv,
 756                                    void *sharedContextPrivate);
 757
 758
 759
 760
 761 static GLboolean
 762 intelCreateContext(const __GLcontextModes * mesaVis,
 763                    __DRIcontextPrivate * driContextPriv,
 764                    void *sharedContextPrivate)
 765 {
 766    __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 767    intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private;
 768
 769    switch (intelScreen->deviceID) {
 770       /* Don't deal with i830 until texture work complete:
 771        */
 772    case PCI_CHIP_845_G:
 773    case PCI_CHIP_I830_M:
 774    case PCI_CHIP_I855_GM:
 775    case PCI_CHIP_I865_G:
 776       return i830CreateContext(mesaVis, driContextPriv, sharedContextPrivate);
 777
 778    case PCI_CHIP_I915_G:
 779    case PCI_CHIP_I915_GM:
 780    case PCI_CHIP_I945_G:
 781    case PCI_CHIP_I945_GM:
 782    case PCI_CHIP_I945_GME:
 783    case PCI_CHIP_G33_G:
 784    case PCI_CHIP_Q35_G:
 785    case PCI_CHIP_Q33_G:
 786       return i915CreateContext(mesaVis, driContextPriv, sharedContextPrivate);
 787
 788    default:
 789       fprintf(stderr, "Unrecognized deviceID %x\n", intelScreen->deviceID);
 790       return GL_FALSE;
 791    }
 792 }
 793
 794
 795 static const struct __DriverAPIRec intelAPI = {
 796    .DestroyScreen = intelDestroyScreen,
 797    .CreateContext = intelCreateContext,
 798    .DestroyContext = intelDestroyContext,
 799    .CreateBuffer = intelCreateBuffer,
 800    .DestroyBuffer = intelDestroyBuffer,
 801    .SwapBuffers = intelSwapBuffers,
 802    .MakeCurrent = intelMakeCurrent,
 803    .UnbindContext = intelUnbindContext,
 804    .GetSwapInfo = intelGetSwapInfo,
 805    .GetMSC = driGetMSC32,
 806    .GetDrawableMSC = driDrawableGetMSC32,
 807    .WaitForMSC = driWaitForMSC32,
 808    .WaitForSBC = NULL,
 809    .SwapBuffersMSC = NULL,
 810    .CopySubBuffer = intelCopySubBuffer,
 811    .setTexOffset = intelSetTexOffset,
 812 };
 813
 814
 815 static __GLcontextModes *
 816 intelFillInModes(unsigned pixel_bits, unsigned depth_bits,
 817                  unsigned stencil_bits, GLboolean have_back_buffer)
 818 {
 819    __GLcontextModes *modes;
 820    __GLcontextModes *m;
 821    unsigned num_modes;
 822    unsigned depth_buffer_factor;
 823    unsigned back_buffer_factor;
 824    GLenum fb_format;
 825    GLenum fb_type;
 826
 827    /* GLX_SWAP_COPY_OML is only supported because the Intel driver doesn't
 828     * support pageflipping at all.
 829     */
 830    static const GLenum back_buffer_modes[] = {
 831       GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
 832    };
 833
 834    u_int8_t depth_bits_array[3];
 835    u_int8_t stencil_bits_array[3];
 836
 837
 838    depth_bits_array[0] = 0;
 839    depth_bits_array[1] = depth_bits;
 840    depth_bits_array[2] = depth_bits;
 841
 842    /* Just like with the accumulation buffer, always provide some modes
 843     * with a stencil buffer.  It will be a sw fallback, but some apps won't
 844     * care about that.
 845     */
 846    stencil_bits_array[0] = 0;
 847    stencil_bits_array[1] = 0;
 848    if (depth_bits == 24)
 849       stencil_bits_array[1] = (stencil_bits == 0) ? 8 : stencil_bits;
 850
 851    stencil_bits_array[2] = (stencil_bits == 0) ? 8 : stencil_bits;
 852
 853    depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 3 : 1;
 854    back_buffer_factor = (have_back_buffer) ? 3 : 1;
 855
 856    num_modes = depth_buffer_factor * back_buffer_factor * 4;
 857
 858    if (pixel_bits == 16) {
 859       fb_format = GL_RGB;
 860       fb_type = GL_UNSIGNED_SHORT_5_6_5;
 861    }
 862    else {
 863       fb_format = GL_BGRA;
 864       fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
 865    }
 866
 867    modes =
 868       (*dri_interface->createContextModes) (num_modes,
 869                                             sizeof(__GLcontextModes));
 870    m = modes;
 871    if (!driFillInModes(&m, fb_format, fb_type,
 872                        depth_bits_array, stencil_bits_array,
 873                        depth_buffer_factor, back_buffer_modes,
 874                        back_buffer_factor, GLX_TRUE_COLOR)) {
 875       fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
 876               __LINE__);
 877       return NULL;
 878    }
 879    if (!driFillInModes(&m, fb_format, fb_type,
 880                        depth_bits_array, stencil_bits_array,
 881                        depth_buffer_factor, back_buffer_modes,
 882                        back_buffer_factor, GLX_DIRECT_COLOR)) {
 883       fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
 884               __LINE__);
 885       return NULL;
 886    }
 887
 888    /* Mark the visual as slow if there are "fake" stencil bits.
 889     */
 890    for (m = modes; m != NULL; m = m->next) {
 891       if ((m->stencilBits != 0) && (m->stencilBits != stencil_bits)) {
 892          m->visualRating = GLX_SLOW_CONFIG;
 893       }
 894    }
 895
 896    return modes;
 897 }
 898
 899
 900 /**
 901  * This is the driver specific part of the createNewScreen entry point.
 902  *
 903  * \todo maybe fold this into intelInitDriver
 904  *
 905  * \return the __GLcontextModes supported by this driver
 906  */
 907 PUBLIC __GLcontextModes *__driDriverInitScreen(__DRIscreenPrivate *psp)
 908 {
 909    static const __DRIversion ddx_expected = { 1, 5, 0 };
 910    static const __DRIversion dri_expected = { 4, 0, 0 };
 911    static const __DRIversion drm_expected = { 1, 5, 0 };
 912    I830DRIPtr dri_priv = (I830DRIPtr) psp->pDevPriv;
 913
 914    psp->DriverAPI = intelAPI;
 915
 916    if (!driCheckDriDdxDrmVersions2("i915",
 917                                    &psp->dri_version, &dri_expected,
 918                                    &psp->ddx_version, &ddx_expected,
 919                                    &psp->drm_version, &drm_expected)) {
 920       return NULL;
 921    }
 922
 923    /* Calling driInitExtensions here, with a NULL context pointer,
 924     * does not actually enable the extensions.  It just makes sure
 925     * that all the dispatch offsets for all the extensions that
 926     * *might* be enables are known.  This is needed because the
 927     * dispatch offsets need to be known when _mesa_context_create is
 928     * called, but we can't enable the extensions until we have a
 929     * context pointer.
 930     *
 931     * Hello chicken.  Hello egg.  How are you two today?
 932     */
 933    driInitExtensions(NULL, card_extensions, GL_FALSE);
 934    driInitExtensions(NULL, ttm_extensions, GL_FALSE);
 935
 936    if (!intelInitDriver(psp))
 937        return NULL;
 938
 939    return intelFillInModes(dri_priv->cpp * 8,
 940                            (dri_priv->cpp == 2) ? 16 : 24,
 941                            (dri_priv->cpp == 2) ? 0  : 8, 1);
 942 }
 943
 944 struct intel_context *intelScreenContext(intelScreenPrivate *intelScreen)
 945 {
 946   /*
 947    * This should probably change to have the screen allocate a dummy
 948    * context at screen creation. For now just use the current context.
 949    */
 950
 951   GET_CURRENT_CONTEXT(ctx);
 952   if (ctx == NULL) {
 953      _mesa_problem(NULL, "No current context in intelScreenContext\n");
 954      return NULL;
 955   }
 956   return intel_context(ctx);
 957 }
 958