src/gallium/state_trackers/dri/dri2.c

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright 2009, VMware, Inc.
   5  * All Rights Reserved.
   6  * Copyright (C) 2010 LunarG Inc.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included
  16  * in all copies or substantial portions 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 MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  22  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  23  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  24  * OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  * Authors:
  27  *    Keith Whitwell <keithw@vmware.com> Jakob Bornecrantz
  28  *    <wallbraker@gmail.com> Chia-I Wu <olv@lunarg.com>
  29  */
  30
  31 #include <xf86drm.h>
  32 #include <fcntl.h>
  33 #include "GL/mesa_glinterop.h"
  34 #include "util/u_memory.h"
  35 #include "util/u_inlines.h"
  36 #include "util/u_format.h"
  37 #include "util/u_debug.h"
  38 #include "state_tracker/drm_driver.h"
  39 #include "state_tracker/st_cb_bufferobjects.h"
  40 #include "state_tracker/st_cb_fbo.h"
  41 #include "state_tracker/st_cb_texture.h"
  42 #include "state_tracker/st_texture.h"
  43 #include "state_tracker/st_context.h"
  44 #include "pipe-loader/pipe_loader.h"
  45 #include "main/bufferobj.h"
  46 #include "main/texobj.h"
  47
  48 #include "dri_helpers.h"
  49 #include "dri_drawable.h"
  50 #include "dri_query_renderer.h"
  51 #include "dri2_buffer.h"
  52
  53 #ifndef DRM_FORMAT_MOD_INVALID
  54 #define DRM_FORMAT_MOD_INVALID ((1ULL<<56) - 1)
  55 #endif
  56
  57 static const int fourcc_formats[] = {
  58    __DRI_IMAGE_FOURCC_ARGB2101010,
  59    __DRI_IMAGE_FOURCC_XRGB2101010,
  60    __DRI_IMAGE_FOURCC_ABGR2101010,
  61    __DRI_IMAGE_FOURCC_XBGR2101010,
  62    __DRI_IMAGE_FOURCC_ARGB8888,
  63    __DRI_IMAGE_FOURCC_ABGR8888,
  64    __DRI_IMAGE_FOURCC_SARGB8888,
  65    __DRI_IMAGE_FOURCC_XRGB8888,
  66    __DRI_IMAGE_FOURCC_XBGR8888,
  67    __DRI_IMAGE_FOURCC_ARGB1555,
  68    __DRI_IMAGE_FOURCC_RGB565,
  69    __DRI_IMAGE_FOURCC_R8,
  70    __DRI_IMAGE_FOURCC_R16,
  71    __DRI_IMAGE_FOURCC_GR88,
  72    __DRI_IMAGE_FOURCC_GR1616,
  73    __DRI_IMAGE_FOURCC_YUV410,
  74    __DRI_IMAGE_FOURCC_YUV411,
  75    __DRI_IMAGE_FOURCC_YUV420,
  76    __DRI_IMAGE_FOURCC_YUV422,
  77    __DRI_IMAGE_FOURCC_YUV444,
  78    __DRI_IMAGE_FOURCC_YVU410,
  79    __DRI_IMAGE_FOURCC_YVU411,
  80    __DRI_IMAGE_FOURCC_YVU420,
  81    __DRI_IMAGE_FOURCC_YVU422,
  82    __DRI_IMAGE_FOURCC_YVU444,
  83    __DRI_IMAGE_FOURCC_NV12,
  84    __DRI_IMAGE_FOURCC_NV16,
  85    __DRI_IMAGE_FOURCC_YUYV
  86 };
  87
  88 static int convert_fourcc(int format, int *dri_components_p)
  89 {
  90    int dri_components;
  91    switch(format) {
  92    case __DRI_IMAGE_FOURCC_RGB565:
  93       format = __DRI_IMAGE_FORMAT_RGB565;
  94       dri_components = __DRI_IMAGE_COMPONENTS_RGB;
  95       break;
  96    case __DRI_IMAGE_FOURCC_ARGB8888:
  97       format = __DRI_IMAGE_FORMAT_ARGB8888;
  98       dri_components = __DRI_IMAGE_COMPONENTS_RGBA;
  99       break;
 100    case __DRI_IMAGE_FOURCC_XRGB8888:
 101       format = __DRI_IMAGE_FORMAT_XRGB8888;
 102       dri_components = __DRI_IMAGE_COMPONENTS_RGB;
 103       break;
 104    case __DRI_IMAGE_FOURCC_ABGR8888:
 105       format = __DRI_IMAGE_FORMAT_ABGR8888;
 106       dri_components = __DRI_IMAGE_COMPONENTS_RGBA;
 107       break;
 108    case __DRI_IMAGE_FOURCC_XBGR8888:
 109       format = __DRI_IMAGE_FORMAT_XBGR8888;
 110       dri_components = __DRI_IMAGE_COMPONENTS_RGB;
 111       break;
 112    case __DRI_IMAGE_FOURCC_ARGB2101010:
 113       format = __DRI_IMAGE_FORMAT_ARGB2101010;
 114       dri_components = __DRI_IMAGE_COMPONENTS_RGBA;
 115       break;
 116    case __DRI_IMAGE_FOURCC_XRGB2101010:
 117       format = __DRI_IMAGE_FORMAT_XRGB2101010;
 118       dri_components = __DRI_IMAGE_COMPONENTS_RGB;
 119       break;
 120    case __DRI_IMAGE_FOURCC_ABGR2101010:
 121       format = __DRI_IMAGE_FORMAT_ABGR2101010;
 122       dri_components = __DRI_IMAGE_COMPONENTS_RGBA;
 123       break;
 124    case __DRI_IMAGE_FOURCC_XBGR2101010:
 125       format = __DRI_IMAGE_FORMAT_XBGR2101010;
 126       dri_components = __DRI_IMAGE_COMPONENTS_RGB;
 127       break;
 128    case __DRI_IMAGE_FOURCC_R8:
 129       format = __DRI_IMAGE_FORMAT_R8;
 130       dri_components = __DRI_IMAGE_COMPONENTS_R;
 131       break;
 132    case __DRI_IMAGE_FOURCC_GR88:
 133       format = __DRI_IMAGE_FORMAT_GR88;
 134       dri_components = __DRI_IMAGE_COMPONENTS_RG;
 135       break;
 136    case __DRI_IMAGE_FOURCC_R16:
 137       format = __DRI_IMAGE_FORMAT_R16;
 138       dri_components = __DRI_IMAGE_COMPONENTS_R;
 139       break;
 140    case __DRI_IMAGE_FOURCC_GR1616:
 141       format = __DRI_IMAGE_FORMAT_GR1616;
 142       dri_components = __DRI_IMAGE_COMPONENTS_RG;
 143       break;
 144    case __DRI_IMAGE_FOURCC_YUYV:
 145       format = __DRI_IMAGE_FORMAT_YUYV;
 146       dri_components = __DRI_IMAGE_COMPONENTS_Y_XUXV;
 147       break;
 148    /*
 149     * For multi-planar YUV formats, we return the format of the first
 150     * plane only.  Since there is only one caller which supports multi-
 151     * planar YUV it gets to figure out the remaining planes on it's
 152     * own.
 153     */
 154    case __DRI_IMAGE_FOURCC_YUV420:
 155    case __DRI_IMAGE_FOURCC_YVU420:
 156       format = __DRI_IMAGE_FORMAT_R8;
 157       dri_components = __DRI_IMAGE_COMPONENTS_Y_U_V;
 158       break;
 159    case __DRI_IMAGE_FOURCC_NV12:
 160       format = __DRI_IMAGE_FORMAT_R8;
 161       dri_components = __DRI_IMAGE_COMPONENTS_Y_UV;
 162       break;
 163    default:
 164       return -1;
 165    }
 166    *dri_components_p = dri_components;
 167    return format;
 168 }
 169
 170 /* NOTE this probably isn't going to do the right thing for YUV images
 171  * (but I think the same can be said for intel_query_image()).  I think
 172  * only needed for exporting dmabuf's, so I think I won't loose much
 173  * sleep over it.
 174  */
 175 static int convert_to_fourcc(int format)
 176 {
 177    switch(format) {
 178    case __DRI_IMAGE_FORMAT_RGB565:
 179       format = __DRI_IMAGE_FOURCC_RGB565;
 180       break;
 181    case __DRI_IMAGE_FORMAT_ARGB8888:
 182       format = __DRI_IMAGE_FOURCC_ARGB8888;
 183       break;
 184    case __DRI_IMAGE_FORMAT_XRGB8888:
 185       format = __DRI_IMAGE_FOURCC_XRGB8888;
 186       break;
 187    case __DRI_IMAGE_FORMAT_ABGR8888:
 188       format = __DRI_IMAGE_FOURCC_ABGR8888;
 189       break;
 190    case __DRI_IMAGE_FORMAT_XBGR8888:
 191       format = __DRI_IMAGE_FOURCC_XBGR8888;
 192       break;
 193    case __DRI_IMAGE_FORMAT_ARGB2101010:
 194       format = __DRI_IMAGE_FOURCC_ARGB2101010;
 195       break;
 196    case __DRI_IMAGE_FORMAT_XRGB2101010:
 197       format = __DRI_IMAGE_FOURCC_XRGB2101010;
 198       break;
 199    case __DRI_IMAGE_FORMAT_ABGR2101010:
 200       format = __DRI_IMAGE_FOURCC_ABGR2101010;
 201       break;
 202    case __DRI_IMAGE_FORMAT_XBGR2101010:
 203       format = __DRI_IMAGE_FOURCC_XBGR2101010;
 204       break;
 205    case __DRI_IMAGE_FORMAT_R8:
 206       format = __DRI_IMAGE_FOURCC_R8;
 207       break;
 208    case __DRI_IMAGE_FORMAT_GR88:
 209       format = __DRI_IMAGE_FOURCC_GR88;
 210       break;
 211    default:
 212       return -1;
 213    }
 214    return format;
 215 }
 216
 217 static enum pipe_format dri2_format_to_pipe_format (int format)
 218 {
 219    enum pipe_format pf;
 220
 221    switch (format) {
 222    case __DRI_IMAGE_FORMAT_RGB565:
 223       pf = PIPE_FORMAT_B5G6R5_UNORM;
 224       break;
 225    case __DRI_IMAGE_FORMAT_XRGB8888:
 226       pf = PIPE_FORMAT_BGRX8888_UNORM;
 227       break;
 228    case __DRI_IMAGE_FORMAT_ARGB8888:
 229       pf = PIPE_FORMAT_BGRA8888_UNORM;
 230       break;
 231    case __DRI_IMAGE_FORMAT_XBGR8888:
 232       pf = PIPE_FORMAT_RGBX8888_UNORM;
 233       break;
 234    case __DRI_IMAGE_FORMAT_ABGR8888:
 235       pf = PIPE_FORMAT_RGBA8888_UNORM;
 236       break;
 237    case __DRI_IMAGE_FORMAT_XRGB2101010:
 238       pf = PIPE_FORMAT_B10G10R10X2_UNORM;
 239       break;
 240    case __DRI_IMAGE_FORMAT_ARGB2101010:
 241       pf = PIPE_FORMAT_B10G10R10A2_UNORM;
 242       break;
 243    case __DRI_IMAGE_FORMAT_XBGR2101010:
 244       pf = PIPE_FORMAT_R10G10B10X2_UNORM;
 245       break;
 246    case __DRI_IMAGE_FORMAT_ABGR2101010:
 247       pf = PIPE_FORMAT_R10G10B10A2_UNORM;
 248       break;
 249    case __DRI_IMAGE_FORMAT_R8:
 250       pf = PIPE_FORMAT_R8_UNORM;
 251       break;
 252    case __DRI_IMAGE_FORMAT_GR88:
 253       pf = PIPE_FORMAT_RG88_UNORM;
 254       break;
 255    case __DRI_IMAGE_FORMAT_R16:
 256       pf = PIPE_FORMAT_R16_UNORM;
 257       break;
 258    case __DRI_IMAGE_FORMAT_GR1616:
 259       pf = PIPE_FORMAT_R16G16_UNORM;
 260       break;
 261    case __DRI_IMAGE_FORMAT_YUYV:
 262       pf = PIPE_FORMAT_YUYV;
 263       break;
 264    default:
 265       pf = PIPE_FORMAT_NONE;
 266       break;
 267    }
 268
 269    return pf;
 270 }
 271
 272 static enum pipe_format fourcc_to_pipe_format(int fourcc)
 273 {
 274    enum pipe_format pf;
 275
 276    switch (fourcc) {
 277    case __DRI_IMAGE_FOURCC_R8:
 278       pf = PIPE_FORMAT_R8_UNORM;
 279       break;
 280    case __DRI_IMAGE_FOURCC_GR88:
 281       pf = PIPE_FORMAT_RG88_UNORM;
 282       break;
 283    case __DRI_IMAGE_FOURCC_ARGB1555:
 284       pf = PIPE_FORMAT_B5G5R5A1_UNORM;
 285       break;
 286    case __DRI_IMAGE_FOURCC_R16:
 287       pf = PIPE_FORMAT_R16_UNORM;
 288       break;
 289    case __DRI_IMAGE_FOURCC_GR1616:
 290       pf = PIPE_FORMAT_RG1616_UNORM;
 291       break;
 292    case __DRI_IMAGE_FOURCC_RGB565:
 293       pf = PIPE_FORMAT_B5G6R5_UNORM;
 294       break;
 295    case __DRI_IMAGE_FOURCC_ARGB8888:
 296       pf = PIPE_FORMAT_BGRA8888_UNORM;
 297       break;
 298    case __DRI_IMAGE_FOURCC_XRGB8888:
 299       pf = PIPE_FORMAT_BGRX8888_UNORM;
 300       break;
 301    case __DRI_IMAGE_FOURCC_ABGR8888:
 302       pf = PIPE_FORMAT_RGBA8888_UNORM;
 303       break;
 304    case __DRI_IMAGE_FOURCC_XBGR8888:
 305       pf = PIPE_FORMAT_RGBX8888_UNORM;
 306       break;
 307    case __DRI_IMAGE_FOURCC_ARGB2101010:
 308       pf = PIPE_FORMAT_B10G10R10A2_UNORM;
 309       break;
 310    case __DRI_IMAGE_FOURCC_XRGB2101010:
 311       pf = PIPE_FORMAT_B10G10R10X2_UNORM;
 312       break;
 313    case __DRI_IMAGE_FOURCC_ABGR2101010:
 314       pf = PIPE_FORMAT_R10G10B10A2_UNORM;
 315       break;
 316    case __DRI_IMAGE_FOURCC_XBGR2101010:
 317       pf = PIPE_FORMAT_R10G10B10X2_UNORM;
 318       break;
 319
 320    case __DRI_IMAGE_FOURCC_NV12:
 321       pf = PIPE_FORMAT_NV12;
 322       break;
 323    case __DRI_IMAGE_FOURCC_YUYV:
 324       pf = PIPE_FORMAT_YUYV;
 325       break;
 326    case __DRI_IMAGE_FOURCC_YUV420:
 327    case __DRI_IMAGE_FOURCC_YVU420:
 328       pf = PIPE_FORMAT_YV12;
 329       break;
 330
 331    case __DRI_IMAGE_FOURCC_SARGB8888:
 332    case __DRI_IMAGE_FOURCC_YUV410:
 333    case __DRI_IMAGE_FOURCC_YUV411:
 334    case __DRI_IMAGE_FOURCC_YUV422:
 335    case __DRI_IMAGE_FOURCC_YUV444:
 336    case __DRI_IMAGE_FOURCC_NV16:
 337    case __DRI_IMAGE_FOURCC_YVU410:
 338    case __DRI_IMAGE_FOURCC_YVU411:
 339    case __DRI_IMAGE_FOURCC_YVU422:
 340    case __DRI_IMAGE_FOURCC_YVU444:
 341    default:
 342       pf = PIPE_FORMAT_NONE;
 343    }
 344
 345    return pf;
 346 }
 347
 348 /**
 349  * DRI2 flush extension.
 350  */
 351 static void
 352 dri2_flush_drawable(__DRIdrawable *dPriv)
 353 {
 354    dri_flush(dPriv->driContextPriv, dPriv, __DRI2_FLUSH_DRAWABLE, -1);
 355 }
 356
 357 static void
 358 dri2_invalidate_drawable(__DRIdrawable *dPriv)
 359 {
 360    struct dri_drawable *drawable = dri_drawable(dPriv);
 361
 362    dri2InvalidateDrawable(dPriv);
 363    drawable->dPriv->lastStamp = drawable->dPriv->dri2.stamp;
 364    drawable->texture_mask = 0;
 365
 366    p_atomic_inc(&drawable->base.stamp);
 367 }
 368
 369 static const __DRI2flushExtension dri2FlushExtension = {
 370     .base = { __DRI2_FLUSH, 4 },
 371
 372     .flush                = dri2_flush_drawable,
 373     .invalidate           = dri2_invalidate_drawable,
 374     .flush_with_flags     = dri_flush,
 375 };
 376
 377 /**
 378  * Retrieve __DRIbuffer from the DRI loader.
 379  */
 380 static __DRIbuffer *
 381 dri2_drawable_get_buffers(struct dri_drawable *drawable,
 382                           const enum st_attachment_type *atts,
 383                           unsigned *count)
 384 {
 385    __DRIdrawable *dri_drawable = drawable->dPriv;
 386    const __DRIdri2LoaderExtension *loader = drawable->sPriv->dri2.loader;
 387    boolean with_format;
 388    __DRIbuffer *buffers;
 389    int num_buffers;
 390    unsigned attachments[10];
 391    unsigned num_attachments, i;
 392
 393    assert(loader);
 394    with_format = dri_with_format(drawable->sPriv);
 395
 396    num_attachments = 0;
 397
 398    /* for Xserver 1.6.0 (DRI2 version 1) we always need to ask for the front */
 399    if (!with_format)
 400       attachments[num_attachments++] = __DRI_BUFFER_FRONT_LEFT;
 401
 402    for (i = 0; i < *count; i++) {
 403       enum pipe_format format;
 404       unsigned bind;
 405       int att, depth;
 406
 407       dri_drawable_get_format(drawable, atts[i], &format, &bind);
 408       if (format == PIPE_FORMAT_NONE)
 409          continue;
 410
 411       switch (atts[i]) {
 412       case ST_ATTACHMENT_FRONT_LEFT:
 413          /* already added */
 414          if (!with_format)
 415             continue;
 416          att = __DRI_BUFFER_FRONT_LEFT;
 417          break;
 418       case ST_ATTACHMENT_BACK_LEFT:
 419          att = __DRI_BUFFER_BACK_LEFT;
 420          break;
 421       case ST_ATTACHMENT_FRONT_RIGHT:
 422          att = __DRI_BUFFER_FRONT_RIGHT;
 423          break;
 424       case ST_ATTACHMENT_BACK_RIGHT:
 425          att = __DRI_BUFFER_BACK_RIGHT;
 426          break;
 427       default:
 428          continue;
 429       }
 430
 431       /*
 432        * In this switch statement we must support all formats that
 433        * may occur as the stvis->color_format.
 434        */
 435       switch(format) {
 436       case PIPE_FORMAT_B10G10R10A2_UNORM:
 437       case PIPE_FORMAT_R10G10B10A2_UNORM:
 438       case PIPE_FORMAT_BGRA8888_UNORM:
 439       case PIPE_FORMAT_RGBA8888_UNORM:
 440          depth = 32;
 441          break;
 442       case PIPE_FORMAT_R10G10B10X2_UNORM:
 443       case PIPE_FORMAT_B10G10R10X2_UNORM:
 444          depth = 30;
 445          break;
 446       case PIPE_FORMAT_BGRX8888_UNORM:
 447       case PIPE_FORMAT_RGBX8888_UNORM:
 448          depth = 24;
 449          break;
 450       case PIPE_FORMAT_B5G6R5_UNORM:
 451          depth = 16;
 452          break;
 453       default:
 454          depth = util_format_get_blocksizebits(format);
 455          assert(!"Unexpected format in dri2_drawable_get_buffers()");
 456       }
 457
 458       attachments[num_attachments++] = att;
 459       if (with_format) {
 460          attachments[num_attachments++] = depth;
 461       }
 462    }
 463
 464    if (with_format) {
 465       num_attachments /= 2;
 466       buffers = loader->getBuffersWithFormat(dri_drawable,
 467             &dri_drawable->w, &dri_drawable->h,
 468             attachments, num_attachments,
 469             &num_buffers, dri_drawable->loaderPrivate);
 470    }
 471    else {
 472       buffers = loader->getBuffers(dri_drawable,
 473             &dri_drawable->w, &dri_drawable->h,
 474             attachments, num_attachments,
 475             &num_buffers, dri_drawable->loaderPrivate);
 476    }
 477
 478    if (buffers)
 479       *count = num_buffers;
 480
 481    return buffers;
 482 }
 483
 484 static bool
 485 dri_image_drawable_get_buffers(struct dri_drawable *drawable,
 486                                struct __DRIimageList *images,
 487                                const enum st_attachment_type *statts,
 488                                unsigned statts_count)
 489 {
 490    __DRIdrawable *dPriv = drawable->dPriv;
 491    __DRIscreen *sPriv = drawable->sPriv;
 492    unsigned int image_format = __DRI_IMAGE_FORMAT_NONE;
 493    enum pipe_format pf;
 494    uint32_t buffer_mask = 0;
 495    unsigned i, bind;
 496
 497    for (i = 0; i < statts_count; i++) {
 498       dri_drawable_get_format(drawable, statts[i], &pf, &bind);
 499       if (pf == PIPE_FORMAT_NONE)
 500          continue;
 501
 502       switch (statts[i]) {
 503       case ST_ATTACHMENT_FRONT_LEFT:
 504          buffer_mask |= __DRI_IMAGE_BUFFER_FRONT;
 505          break;
 506       case ST_ATTACHMENT_BACK_LEFT:
 507          buffer_mask |= __DRI_IMAGE_BUFFER_BACK;
 508          break;
 509       default:
 510          continue;
 511       }
 512
 513       switch (pf) {
 514       case PIPE_FORMAT_B5G6R5_UNORM:
 515          image_format = __DRI_IMAGE_FORMAT_RGB565;
 516          break;
 517       case PIPE_FORMAT_BGRX8888_UNORM:
 518          image_format = __DRI_IMAGE_FORMAT_XRGB8888;
 519          break;
 520       case PIPE_FORMAT_BGRA8888_UNORM:
 521          image_format = __DRI_IMAGE_FORMAT_ARGB8888;
 522          break;
 523       case PIPE_FORMAT_RGBX8888_UNORM:
 524          image_format = __DRI_IMAGE_FORMAT_XBGR8888;
 525          break;
 526       case PIPE_FORMAT_RGBA8888_UNORM:
 527          image_format = __DRI_IMAGE_FORMAT_ABGR8888;
 528          break;
 529       case PIPE_FORMAT_B10G10R10X2_UNORM:
 530          image_format = __DRI_IMAGE_FORMAT_XRGB2101010;
 531          break;
 532       case PIPE_FORMAT_B10G10R10A2_UNORM:
 533          image_format = __DRI_IMAGE_FORMAT_ARGB2101010;
 534          break;
 535       case PIPE_FORMAT_R10G10B10X2_UNORM:
 536          image_format = __DRI_IMAGE_FORMAT_XBGR2101010;
 537          break;
 538       case PIPE_FORMAT_R10G10B10A2_UNORM:
 539          image_format = __DRI_IMAGE_FORMAT_ABGR2101010;
 540          break;
 541       default:
 542          image_format = __DRI_IMAGE_FORMAT_NONE;
 543          break;
 544       }
 545    }
 546
 547    return (*sPriv->image.loader->getBuffers) (dPriv, image_format,
 548                                        (uint32_t *) &drawable->base.stamp,
 549                                        dPriv->loaderPrivate, buffer_mask,
 550                                        images);
 551 }
 552
 553 static __DRIbuffer *
 554 dri2_allocate_buffer(__DRIscreen *sPriv,
 555                      unsigned attachment, unsigned format,
 556                      int width, int height)
 557 {
 558    struct dri_screen *screen = dri_screen(sPriv);
 559    struct dri2_buffer *buffer;
 560    struct pipe_resource templ;
 561    enum pipe_format pf;
 562    unsigned bind = 0;
 563    struct winsys_handle whandle;
 564
 565    switch (attachment) {
 566       case __DRI_BUFFER_FRONT_LEFT:
 567       case __DRI_BUFFER_FAKE_FRONT_LEFT:
 568          bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 569          break;
 570       case __DRI_BUFFER_BACK_LEFT:
 571          bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 572          break;
 573       case __DRI_BUFFER_DEPTH:
 574       case __DRI_BUFFER_DEPTH_STENCIL:
 575       case __DRI_BUFFER_STENCIL:
 576             bind = PIPE_BIND_DEPTH_STENCIL; /* XXX sampler? */
 577          break;
 578    }
 579
 580    /* because we get the handle and stride */
 581    bind |= PIPE_BIND_SHARED;
 582
 583    switch (format) {
 584       case 32:
 585          pf = PIPE_FORMAT_BGRA8888_UNORM;
 586          break;
 587       case 30:
 588          pf = PIPE_FORMAT_B10G10R10X2_UNORM;
 589          break;
 590       case 24:
 591          pf = PIPE_FORMAT_BGRX8888_UNORM;
 592          break;
 593       case 16:
 594          pf = PIPE_FORMAT_Z16_UNORM;
 595          break;
 596       default:
 597          return NULL;
 598    }
 599
 600    buffer = CALLOC_STRUCT(dri2_buffer);
 601    if (!buffer)
 602       return NULL;
 603
 604    memset(&templ, 0, sizeof(templ));
 605    templ.bind = bind;
 606    templ.format = pf;
 607    templ.target = PIPE_TEXTURE_2D;
 608    templ.last_level = 0;
 609    templ.width0 = width;
 610    templ.height0 = height;
 611    templ.depth0 = 1;
 612    templ.array_size = 1;
 613
 614    buffer->resource =
 615       screen->base.screen->resource_create(screen->base.screen, &templ);
 616    if (!buffer->resource) {
 617       FREE(buffer);
 618       return NULL;
 619    }
 620
 621    memset(&whandle, 0, sizeof(whandle));
 622    if (screen->can_share_buffer)
 623       whandle.type = DRM_API_HANDLE_TYPE_SHARED;
 624    else
 625       whandle.type = DRM_API_HANDLE_TYPE_KMS;
 626
 627    screen->base.screen->resource_get_handle(screen->base.screen, NULL,
 628          buffer->resource, &whandle,
 629          PIPE_HANDLE_USAGE_EXPLICIT_FLUSH | PIPE_HANDLE_USAGE_READ);
 630
 631    buffer->base.attachment = attachment;
 632    buffer->base.name = whandle.handle;
 633    buffer->base.cpp = util_format_get_blocksize(pf);
 634    buffer->base.pitch = whandle.stride;
 635
 636    return &buffer->base;
 637 }
 638
 639 static void
 640 dri2_release_buffer(__DRIscreen *sPriv, __DRIbuffer *bPriv)
 641 {
 642    struct dri2_buffer *buffer = dri2_buffer(bPriv);
 643
 644    pipe_resource_reference(&buffer->resource, NULL);
 645    FREE(buffer);
 646 }
 647
 648 /*
 649  * Backend functions for st_framebuffer interface.
 650  */
 651
 652 static void
 653 dri2_allocate_textures(struct dri_context *ctx,
 654                        struct dri_drawable *drawable,
 655                        const enum st_attachment_type *statts,
 656                        unsigned statts_count)
 657 {
 658    __DRIscreen *sPriv = drawable->sPriv;
 659    __DRIdrawable *dri_drawable = drawable->dPriv;
 660    struct dri_screen *screen = dri_screen(sPriv);
 661    struct pipe_resource templ;
 662    boolean alloc_depthstencil = FALSE;
 663    unsigned i, j, bind;
 664    const __DRIimageLoaderExtension *image = sPriv->image.loader;
 665    /* Image specific variables */
 666    struct __DRIimageList images;
 667    /* Dri2 specific variables */
 668    __DRIbuffer *buffers = NULL;
 669    struct winsys_handle whandle;
 670    unsigned num_buffers = statts_count;
 671
 672    /* First get the buffers from the loader */
 673    if (image) {
 674       if (!dri_image_drawable_get_buffers(drawable, &images,
 675                                           statts, statts_count))
 676          return;
 677    }
 678    else {
 679       buffers = dri2_drawable_get_buffers(drawable, statts, &num_buffers);
 680       if (!buffers || (drawable->old_num == num_buffers &&
 681                        drawable->old_w == dri_drawable->w &&
 682                        drawable->old_h == dri_drawable->h &&
 683                        memcmp(drawable->old, buffers,
 684                               sizeof(__DRIbuffer) * num_buffers) == 0))
 685          return;
 686    }
 687
 688    /* Second clean useless resources*/
 689
 690    /* See if we need a depth-stencil buffer. */
 691    for (i = 0; i < statts_count; i++) {
 692       if (statts[i] == ST_ATTACHMENT_DEPTH_STENCIL) {
 693          alloc_depthstencil = TRUE;
 694          break;
 695       }
 696    }
 697
 698    /* Delete the resources we won't need. */
 699    for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
 700       /* Don't delete the depth-stencil buffer, we can reuse it. */
 701       if (i == ST_ATTACHMENT_DEPTH_STENCIL && alloc_depthstencil)
 702          continue;
 703
 704       /* Flush the texture before unreferencing, so that other clients can
 705        * see what the driver has rendered.
 706        */
 707       if (i != ST_ATTACHMENT_DEPTH_STENCIL && drawable->textures[i]) {
 708          struct pipe_context *pipe = ctx->st->pipe;
 709          pipe->flush_resource(pipe, drawable->textures[i]);
 710       }
 711
 712       pipe_resource_reference(&drawable->textures[i], NULL);
 713    }
 714
 715    if (drawable->stvis.samples > 1) {
 716       for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
 717          boolean del = TRUE;
 718
 719          /* Don't delete MSAA resources for the attachments which are enabled,
 720           * we can reuse them. */
 721          for (j = 0; j < statts_count; j++) {
 722             if (i == statts[j]) {
 723                del = FALSE;
 724                break;
 725             }
 726          }
 727
 728          if (del) {
 729             pipe_resource_reference(&drawable->msaa_textures[i], NULL);
 730          }
 731       }
 732    }
 733
 734    /* Third use the buffers retrieved to fill the drawable info */
 735
 736    memset(&templ, 0, sizeof(templ));
 737    templ.target = screen->target;
 738    templ.last_level = 0;
 739    templ.depth0 = 1;
 740    templ.array_size = 1;
 741
 742    if (image) {
 743       if (images.image_mask & __DRI_IMAGE_BUFFER_FRONT) {
 744          struct pipe_resource **buf =
 745             &drawable->textures[ST_ATTACHMENT_FRONT_LEFT];
 746          struct pipe_resource *texture = images.front->texture;
 747
 748          dri_drawable->w = texture->width0;
 749          dri_drawable->h = texture->height0;
 750
 751          pipe_resource_reference(buf, texture);
 752       }
 753
 754       if (images.image_mask & __DRI_IMAGE_BUFFER_BACK) {
 755          struct pipe_resource **buf =
 756             &drawable->textures[ST_ATTACHMENT_BACK_LEFT];
 757          struct pipe_resource *texture = images.back->texture;
 758
 759          dri_drawable->w = texture->width0;
 760          dri_drawable->h = texture->height0;
 761
 762          pipe_resource_reference(buf, texture);
 763       }
 764
 765       /* Note: if there is both a back and a front buffer,
 766        * then they have the same size.
 767        */
 768       templ.width0 = dri_drawable->w;
 769       templ.height0 = dri_drawable->h;
 770    }
 771    else {
 772       memset(&whandle, 0, sizeof(whandle));
 773
 774       /* Process DRI-provided buffers and get pipe_resources. */
 775       for (i = 0; i < num_buffers; i++) {
 776          __DRIbuffer *buf = &buffers[i];
 777          enum st_attachment_type statt;
 778          enum pipe_format format;
 779
 780          switch (buf->attachment) {
 781          case __DRI_BUFFER_FRONT_LEFT:
 782             if (!screen->auto_fake_front) {
 783                continue; /* invalid attachment */
 784             }
 785             /* fallthrough */
 786          case __DRI_BUFFER_FAKE_FRONT_LEFT:
 787             statt = ST_ATTACHMENT_FRONT_LEFT;
 788             break;
 789          case __DRI_BUFFER_BACK_LEFT:
 790             statt = ST_ATTACHMENT_BACK_LEFT;
 791             break;
 792          default:
 793             continue; /* invalid attachment */
 794          }
 795
 796          dri_drawable_get_format(drawable, statt, &format, &bind);
 797          if (format == PIPE_FORMAT_NONE)
 798             continue;
 799
 800          /* dri2_drawable_get_buffers has already filled dri_drawable->w
 801           * and dri_drawable->h */
 802          templ.width0 = dri_drawable->w;
 803          templ.height0 = dri_drawable->h;
 804          templ.format = format;
 805          templ.bind = bind;
 806          whandle.handle = buf->name;
 807          whandle.stride = buf->pitch;
 808          whandle.offset = 0;
 809          if (screen->can_share_buffer)
 810             whandle.type = DRM_API_HANDLE_TYPE_SHARED;
 811          else
 812             whandle.type = DRM_API_HANDLE_TYPE_KMS;
 813          drawable->textures[statt] =
 814             screen->base.screen->resource_from_handle(screen->base.screen,
 815                   &templ, &whandle,
 816                   PIPE_HANDLE_USAGE_EXPLICIT_FLUSH | PIPE_HANDLE_USAGE_READ);
 817          assert(drawable->textures[statt]);
 818       }
 819    }
 820
 821    /* Allocate private MSAA colorbuffers. */
 822    if (drawable->stvis.samples > 1) {
 823       for (i = 0; i < statts_count; i++) {
 824          enum st_attachment_type statt = statts[i];
 825
 826          if (statt == ST_ATTACHMENT_DEPTH_STENCIL)
 827             continue;
 828
 829          if (drawable->textures[statt]) {
 830             templ.format = drawable->textures[statt]->format;
 831             templ.bind = drawable->textures[statt]->bind &
 832                          ~(PIPE_BIND_SCANOUT | PIPE_BIND_SHARED);
 833             templ.nr_samples = drawable->stvis.samples;
 834
 835             /* Try to reuse the resource.
 836              * (the other resource parameters should be constant)
 837              */
 838             if (!drawable->msaa_textures[statt] ||
 839                 drawable->msaa_textures[statt]->width0 != templ.width0 ||
 840                 drawable->msaa_textures[statt]->height0 != templ.height0) {
 841                /* Allocate a new one. */
 842                pipe_resource_reference(&drawable->msaa_textures[statt], NULL);
 843
 844                drawable->msaa_textures[statt] =
 845                   screen->base.screen->resource_create(screen->base.screen,
 846                                                        &templ);
 847                assert(drawable->msaa_textures[statt]);
 848
 849                /* If there are any MSAA resources, we should initialize them
 850                 * such that they contain the same data as the single-sample
 851                 * resources we just got from the X server.
 852                 *
 853                 * The reason for this is that the state tracker (and
 854                 * therefore the app) can access the MSAA resources only.
 855                 * The single-sample resources are not exposed
 856                 * to the state tracker.
 857                 *
 858                 */
 859                dri_pipe_blit(ctx->st->pipe,
 860                              drawable->msaa_textures[statt],
 861                              drawable->textures[statt]);
 862             }
 863          }
 864          else {
 865             pipe_resource_reference(&drawable->msaa_textures[statt], NULL);
 866          }
 867       }
 868    }
 869
 870    /* Allocate a private depth-stencil buffer. */
 871    if (alloc_depthstencil) {
 872       enum st_attachment_type statt = ST_ATTACHMENT_DEPTH_STENCIL;
 873       struct pipe_resource **zsbuf;
 874       enum pipe_format format;
 875       unsigned bind;
 876
 877       dri_drawable_get_format(drawable, statt, &format, &bind);
 878
 879       if (format) {
 880          templ.format = format;
 881          templ.bind = bind & ~PIPE_BIND_SHARED;
 882
 883          if (drawable->stvis.samples > 1) {
 884             templ.nr_samples = drawable->stvis.samples;
 885             zsbuf = &drawable->msaa_textures[statt];
 886          }
 887          else {
 888             templ.nr_samples = 0;
 889             zsbuf = &drawable->textures[statt];
 890          }
 891
 892          /* Try to reuse the resource.
 893           * (the other resource parameters should be constant)
 894           */
 895          if (!*zsbuf ||
 896              (*zsbuf)->width0 != templ.width0 ||
 897              (*zsbuf)->height0 != templ.height0) {
 898             /* Allocate a new one. */
 899             pipe_resource_reference(zsbuf, NULL);
 900             *zsbuf = screen->base.screen->resource_create(screen->base.screen,
 901                                                           &templ);
 902             assert(*zsbuf);
 903          }
 904       }
 905       else {
 906          pipe_resource_reference(&drawable->msaa_textures[statt], NULL);
 907          pipe_resource_reference(&drawable->textures[statt], NULL);
 908       }
 909    }
 910
 911    /* For DRI2, we may get the same buffers again from the server.
 912     * To prevent useless imports of gem names, drawable->old* is used
 913     * to bypass the import if we get the same buffers. This doesn't apply
 914     * to DRI3/Wayland, users of image.loader, since the buffer is managed
 915     * by the client (no import), and the back buffer is going to change
 916     * at every redraw.
 917     */
 918    if (!image) {
 919       drawable->old_num = num_buffers;
 920       drawable->old_w = dri_drawable->w;
 921       drawable->old_h = dri_drawable->h;
 922       memcpy(drawable->old, buffers, sizeof(__DRIbuffer) * num_buffers);
 923    }
 924 }
 925
 926 static void
 927 dri2_flush_frontbuffer(struct dri_context *ctx,
 928                        struct dri_drawable *drawable,
 929                        enum st_attachment_type statt)
 930 {
 931    __DRIdrawable *dri_drawable = drawable->dPriv;
 932    const __DRIimageLoaderExtension *image = drawable->sPriv->image.loader;
 933    const __DRIdri2LoaderExtension *loader = drawable->sPriv->dri2.loader;
 934    struct pipe_context *pipe = ctx->st->pipe;
 935
 936    if (statt != ST_ATTACHMENT_FRONT_LEFT)
 937       return;
 938
 939    if (drawable->stvis.samples > 1) {
 940       /* Resolve the front buffer. */
 941       dri_pipe_blit(ctx->st->pipe,
 942                     drawable->textures[ST_ATTACHMENT_FRONT_LEFT],
 943                     drawable->msaa_textures[ST_ATTACHMENT_FRONT_LEFT]);
 944    }
 945
 946    if (drawable->textures[ST_ATTACHMENT_FRONT_LEFT]) {
 947       pipe->flush_resource(pipe, drawable->textures[ST_ATTACHMENT_FRONT_LEFT]);
 948    }
 949
 950    pipe->flush(pipe, NULL, 0);
 951
 952    if (image) {
 953       image->flushFrontBuffer(dri_drawable, dri_drawable->loaderPrivate);
 954    }
 955    else if (loader->flushFrontBuffer) {
 956       loader->flushFrontBuffer(dri_drawable, dri_drawable->loaderPrivate);
 957    }
 958 }
 959
 960 /**
 961  * The struct dri_drawable flush_swapbuffers callback
 962  */
 963 static void
 964 dri2_flush_swapbuffers(struct dri_context *ctx,
 965                        struct dri_drawable *drawable)
 966 {
 967    __DRIdrawable *dri_drawable = drawable->dPriv;
 968    const __DRIimageLoaderExtension *image = drawable->sPriv->image.loader;
 969
 970    if (image && image->base.version >= 3 && image->flushSwapBuffers) {
 971       image->flushSwapBuffers(dri_drawable, dri_drawable->loaderPrivate);
 972    }
 973 }
 974
 975 static void
 976 dri2_update_tex_buffer(struct dri_drawable *drawable,
 977                        struct dri_context *ctx,
 978                        struct pipe_resource *res)
 979 {
 980    /* no-op */
 981 }
 982
 983 static __DRIimage *
 984 dri2_create_image_from_winsys(__DRIscreen *_screen,
 985                               int width, int height, int format,
 986                               int num_handles, struct winsys_handle *whandle,
 987                               void *loaderPrivate)
 988 {
 989    struct dri_screen *screen = dri_screen(_screen);
 990    struct pipe_screen *pscreen = screen->base.screen;
 991    __DRIimage *img;
 992    struct pipe_resource templ;
 993    unsigned tex_usage;
 994    enum pipe_format pf;
 995    int i;
 996
 997    tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 998
 999    pf = dri2_format_to_pipe_format (format);
1000    if (pf == PIPE_FORMAT_NONE)
1001       return NULL;
1002
1003    img = CALLOC_STRUCT(__DRIimageRec);
1004    if (!img)
1005       return NULL;
1006
1007    memset(&templ, 0, sizeof(templ));
1008    templ.bind = tex_usage;
1009    templ.target = screen->target;
1010    templ.last_level = 0;
1011    templ.depth0 = 1;
1012    templ.array_size = 1;
1013
1014    for (i = num_handles - 1; i >= 0; i--) {
1015       struct pipe_resource *tex;
1016
1017       /* TODO: something a lot less ugly */
1018       switch (i) {
1019       case 0:
1020          templ.width0 = width;
1021          templ.height0 = height;
1022          templ.format = pf;
1023          break;
1024       case 1:
1025          templ.width0 = width / 2;
1026          templ.height0 = height / 2;
1027          templ.format = (num_handles == 2) ?
1028                PIPE_FORMAT_RG88_UNORM :   /* NV12, etc */
1029                PIPE_FORMAT_R8_UNORM;      /* I420, etc */
1030          break;
1031       case 2:
1032          templ.width0 = width / 2;
1033          templ.height0 = height / 2;
1034          templ.format = PIPE_FORMAT_R8_UNORM;
1035          break;
1036       default:
1037          unreachable("too many planes!");
1038       }
1039
1040       tex = pscreen->resource_from_handle(pscreen,
1041             &templ, &whandle[i], PIPE_HANDLE_USAGE_READ_WRITE);
1042       if (!tex) {
1043          pipe_resource_reference(&img->texture, NULL);
1044          FREE(img);
1045          return NULL;
1046       }
1047
1048       tex->next = img->texture;
1049       img->texture = tex;
1050    }
1051
1052    img->level = 0;
1053    img->layer = 0;
1054    img->dri_format = format;
1055    img->use = 0;
1056    img->loader_private = loaderPrivate;
1057
1058    return img;
1059 }
1060
1061 static __DRIimage *
1062 dri2_create_image_from_name(__DRIscreen *_screen,
1063                             int width, int height, int format,
1064                             int name, int pitch, void *loaderPrivate)
1065 {
1066    struct winsys_handle whandle;
1067    enum pipe_format pf;
1068
1069    memset(&whandle, 0, sizeof(whandle));
1070    whandle.type = DRM_API_HANDLE_TYPE_SHARED;
1071    whandle.handle = name;
1072    whandle.modifier = DRM_FORMAT_MOD_INVALID;
1073
1074    pf = dri2_format_to_pipe_format (format);
1075    if (pf == PIPE_FORMAT_NONE)
1076       return NULL;
1077
1078    whandle.stride = pitch * util_format_get_blocksize(pf);
1079
1080    return dri2_create_image_from_winsys(_screen, width, height, format,
1081                                         1, &whandle, loaderPrivate);
1082 }
1083
1084 static __DRIimage *
1085 dri2_create_image_from_fd(__DRIscreen *_screen,
1086                           int width, int height, int fourcc,
1087                           uint64_t modifier, int *fds, int num_fds,
1088                           int *strides, int *offsets, unsigned *error,
1089                           int *dri_components, void *loaderPrivate)
1090 {
1091    struct winsys_handle whandles[3];
1092    int format;
1093    __DRIimage *img = NULL;
1094    unsigned err = __DRI_IMAGE_ERROR_SUCCESS;
1095    int expected_num_fds, i;
1096
1097    switch (fourcc) {
1098    case __DRI_IMAGE_FOURCC_YUV420:
1099    case __DRI_IMAGE_FOURCC_YVU420:
1100       expected_num_fds = 3;
1101       break;
1102    case __DRI_IMAGE_FOURCC_NV12:
1103       expected_num_fds = 2;
1104       break;
1105    default:
1106       expected_num_fds = 1;
1107       break;
1108    }
1109
1110    if (num_fds != expected_num_fds) {
1111       err = __DRI_IMAGE_ERROR_BAD_MATCH;
1112       goto exit;
1113    }
1114
1115    format = convert_fourcc(fourcc, dri_components);
1116    if (format == -1) {
1117       err = __DRI_IMAGE_ERROR_BAD_MATCH;
1118       goto exit;
1119    }
1120
1121    memset(whandles, 0, sizeof(whandles));
1122
1123    for (i = 0; i < num_fds; i++) {
1124       if (fds[i] < 0) {
1125          err = __DRI_IMAGE_ERROR_BAD_ALLOC;
1126          goto exit;
1127       }
1128
1129       whandles[i].type = DRM_API_HANDLE_TYPE_FD;
1130       whandles[i].handle = (unsigned)fds[i];
1131       whandles[i].stride = (unsigned)strides[i];
1132       whandles[i].offset = (unsigned)offsets[i];
1133       whandles[i].modifier = modifier;
1134    }
1135
1136    if (fourcc == __DRI_IMAGE_FOURCC_YVU420) {
1137       /* convert to YUV420 by swapping 2nd and 3rd planes: */
1138       struct winsys_handle tmp = whandles[1];
1139       whandles[1] = whandles[2];
1140       whandles[2] = tmp;
1141       fourcc = __DRI_IMAGE_FOURCC_YUV420;
1142    }
1143
1144    img = dri2_create_image_from_winsys(_screen, width, height, format,
1145                                        num_fds, whandles, loaderPrivate);
1146    if(img == NULL)
1147       err = __DRI_IMAGE_ERROR_BAD_ALLOC;
1148
1149 exit:
1150    if (error)
1151       *error = err;
1152
1153    return img;
1154 }
1155
1156 static __DRIimage *
1157 dri2_create_image_common(__DRIscreen *_screen,
1158                          int width, int height,
1159                          int format, unsigned int use,
1160                          const uint64_t *modifiers,
1161                          const unsigned count,
1162                          void *loaderPrivate)
1163 {
1164    struct dri_screen *screen = dri_screen(_screen);
1165    __DRIimage *img;
1166    struct pipe_resource templ;
1167    unsigned tex_usage;
1168    enum pipe_format pf;
1169
1170    /* createImageWithModifiers doesn't supply usage, and we should not get
1171     * here with both modifiers and a usage flag.
1172     */
1173    assert(!(use && (modifiers != NULL)));
1174
1175    tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
1176
1177    if (use & __DRI_IMAGE_USE_SCANOUT)
1178       tex_usage |= PIPE_BIND_SCANOUT;
1179    if (use & __DRI_IMAGE_USE_SHARE)
1180       tex_usage |= PIPE_BIND_SHARED;
1181    if (use & __DRI_IMAGE_USE_LINEAR)
1182       tex_usage |= PIPE_BIND_LINEAR;
1183    if (use & __DRI_IMAGE_USE_CURSOR) {
1184       if (width != 64 || height != 64)
1185          return NULL;
1186       tex_usage |= PIPE_BIND_CURSOR;
1187    }
1188
1189    pf = dri2_format_to_pipe_format (format);
1190    if (pf == PIPE_FORMAT_NONE)
1191       return NULL;
1192
1193    img = CALLOC_STRUCT(__DRIimageRec);
1194    if (!img)
1195       return NULL;
1196
1197    memset(&templ, 0, sizeof(templ));
1198    templ.bind = tex_usage;
1199    templ.format = pf;
1200    templ.target = PIPE_TEXTURE_2D;
1201    templ.last_level = 0;
1202    templ.width0 = width;
1203    templ.height0 = height;
1204    templ.depth0 = 1;
1205    templ.array_size = 1;
1206
1207    if (modifiers)
1208       img->texture =
1209          screen->base.screen
1210             ->resource_create_with_modifiers(screen->base.screen,
1211                                              &templ,
1212                                              modifiers,
1213                                              count);
1214    else
1215       img->texture =
1216          screen->base.screen->resource_create(screen->base.screen, &templ);
1217    if (!img->texture) {
1218       FREE(img);
1219       return NULL;
1220    }
1221
1222    img->level = 0;
1223    img->layer = 0;
1224    img->dri_format = format;
1225    img->dri_components = 0;
1226    img->use = use;
1227
1228    img->loader_private = loaderPrivate;
1229    return img;
1230 }
1231
1232 static __DRIimage *
1233 dri2_create_image(__DRIscreen *_screen,
1234                    int width, int height, int format,
1235                    unsigned int use, void *loaderPrivate)
1236 {
1237    return dri2_create_image_common(_screen, width, height, format, use,
1238                                    NULL /* modifiers */, 0 /* count */,
1239                                    loaderPrivate);
1240 }
1241
1242 static __DRIimage *
1243 dri2_create_image_with_modifiers(__DRIscreen *dri_screen,
1244                                  int width, int height, int format,
1245                                  const uint64_t *modifiers,
1246                                  const unsigned count,
1247                                  void *loaderPrivate)
1248 {
1249    return dri2_create_image_common(dri_screen, width, height, format,
1250                                    0 /* use */, modifiers, count,
1251                                    loaderPrivate);
1252 }
1253
1254 static GLboolean
1255 dri2_query_image(__DRIimage *image, int attrib, int *value)
1256 {
1257    struct winsys_handle whandle;
1258    unsigned usage;
1259
1260    if (image->use & __DRI_IMAGE_USE_BACKBUFFER)
1261       usage = PIPE_HANDLE_USAGE_EXPLICIT_FLUSH | PIPE_HANDLE_USAGE_READ;
1262    else
1263       usage = PIPE_HANDLE_USAGE_READ_WRITE;
1264
1265    memset(&whandle, 0, sizeof(whandle));
1266
1267    switch (attrib) {
1268    case __DRI_IMAGE_ATTRIB_STRIDE:
1269       whandle.type = DRM_API_HANDLE_TYPE_KMS;
1270       if (!image->texture->screen->resource_get_handle(image->texture->screen,
1271             NULL, image->texture, &whandle, usage))
1272          return GL_FALSE;
1273       *value = whandle.stride;
1274       return GL_TRUE;
1275    case __DRI_IMAGE_ATTRIB_OFFSET:
1276       whandle.type = DRM_API_HANDLE_TYPE_KMS;
1277       if (!image->texture->screen->resource_get_handle(image->texture->screen,
1278             NULL, image->texture, &whandle, usage))
1279          return GL_FALSE;
1280       *value = whandle.offset;
1281       return GL_TRUE;
1282    case __DRI_IMAGE_ATTRIB_HANDLE:
1283       whandle.type = DRM_API_HANDLE_TYPE_KMS;
1284       if (!image->texture->screen->resource_get_handle(image->texture->screen,
1285          NULL, image->texture, &whandle, usage))
1286          return GL_FALSE;
1287       *value = whandle.handle;
1288       return GL_TRUE;
1289    case __DRI_IMAGE_ATTRIB_NAME:
1290       whandle.type = DRM_API_HANDLE_TYPE_SHARED;
1291       if (!image->texture->screen->resource_get_handle(image->texture->screen,
1292          NULL, image->texture, &whandle, usage))
1293          return GL_FALSE;
1294       *value = whandle.handle;
1295       return GL_TRUE;
1296    case __DRI_IMAGE_ATTRIB_FD:
1297       whandle.type= DRM_API_HANDLE_TYPE_FD;
1298       if (!image->texture->screen->resource_get_handle(image->texture->screen,
1299             NULL, image->texture, &whandle, usage))
1300          return GL_FALSE;
1301
1302       *value = whandle.handle;
1303       return GL_TRUE;
1304    case __DRI_IMAGE_ATTRIB_FORMAT:
1305       *value = image->dri_format;
1306       return GL_TRUE;
1307    case __DRI_IMAGE_ATTRIB_WIDTH:
1308       *value = image->texture->width0;
1309       return GL_TRUE;
1310    case __DRI_IMAGE_ATTRIB_HEIGHT:
1311       *value = image->texture->height0;
1312       return GL_TRUE;
1313    case __DRI_IMAGE_ATTRIB_COMPONENTS:
1314       if (image->dri_components == 0)
1315          return GL_FALSE;
1316       *value = image->dri_components;
1317       return GL_TRUE;
1318    case __DRI_IMAGE_ATTRIB_FOURCC:
1319       *value = convert_to_fourcc(image->dri_format);
1320       return GL_TRUE;
1321    case __DRI_IMAGE_ATTRIB_NUM_PLANES:
1322       *value = 1;
1323       return GL_TRUE;
1324    case __DRI_IMAGE_ATTRIB_MODIFIER_UPPER:
1325       whandle.type = DRM_API_HANDLE_TYPE_KMS;
1326       whandle.modifier = DRM_FORMAT_MOD_INVALID;
1327       if (!image->texture->screen->resource_get_handle(image->texture->screen,
1328             NULL, image->texture, &whandle, usage))
1329          return GL_FALSE;
1330       if (whandle.modifier == DRM_FORMAT_MOD_INVALID)
1331          return GL_FALSE;
1332       *value = (whandle.modifier >> 32) & 0xffffffff;
1333       return GL_TRUE;
1334    case __DRI_IMAGE_ATTRIB_MODIFIER_LOWER:
1335       whandle.type = DRM_API_HANDLE_TYPE_KMS;
1336       whandle.modifier = DRM_FORMAT_MOD_INVALID;
1337       if (!image->texture->screen->resource_get_handle(image->texture->screen,
1338             NULL, image->texture, &whandle, usage))
1339          return GL_FALSE;
1340       if (whandle.modifier == DRM_FORMAT_MOD_INVALID)
1341          return GL_FALSE;
1342       *value = whandle.modifier & 0xffffffff;
1343       return GL_TRUE;
1344    default:
1345       return GL_FALSE;
1346    }
1347 }
1348
1349 static __DRIimage *
1350 dri2_dup_image(__DRIimage *image, void *loaderPrivate)
1351 {
1352    __DRIimage *img;
1353
1354    img = CALLOC_STRUCT(__DRIimageRec);
1355    if (!img)
1356       return NULL;
1357
1358    img->texture = NULL;
1359    pipe_resource_reference(&img->texture, image->texture);
1360    img->level = image->level;
1361    img->layer = image->layer;
1362    img->dri_format = image->dri_format;
1363    /* This should be 0 for sub images, but dup is also used for base images. */
1364    img->dri_components = image->dri_components;
1365    img->loader_private = loaderPrivate;
1366
1367    return img;
1368 }
1369
1370 static GLboolean
1371 dri2_validate_usage(__DRIimage *image, unsigned int use)
1372 {
1373    if (!image || !image->texture)
1374       return false;
1375
1376    struct pipe_screen *screen = image->texture->screen;
1377    if (!screen->check_resource_capability)
1378       return true;
1379
1380    /* We don't want to check these:
1381     *   __DRI_IMAGE_USE_SHARE (all images are shareable)
1382     *   __DRI_IMAGE_USE_BACKBUFFER (all images support this)
1383     */
1384    unsigned bind = 0;
1385    if (use & __DRI_IMAGE_USE_SCANOUT)
1386       bind |= PIPE_BIND_SCANOUT;
1387    if (use & __DRI_IMAGE_USE_LINEAR)
1388       bind |= PIPE_BIND_LINEAR;
1389    if (use & __DRI_IMAGE_USE_CURSOR)
1390       bind |= PIPE_BIND_CURSOR;
1391
1392    if (!bind)
1393       return true;
1394
1395    return screen->check_resource_capability(screen, image->texture, bind);
1396 }
1397
1398 static __DRIimage *
1399 dri2_from_names(__DRIscreen *screen, int width, int height, int format,
1400                 int *names, int num_names, int *strides, int *offsets,
1401                 void *loaderPrivate)
1402 {
1403    __DRIimage *img;
1404    int dri_components;
1405    struct winsys_handle whandle;
1406
1407    if (num_names != 1)
1408       return NULL;
1409
1410    format = convert_fourcc(format, &dri_components);
1411    if (format == -1)
1412       return NULL;
1413
1414    memset(&whandle, 0, sizeof(whandle));
1415    whandle.type = DRM_API_HANDLE_TYPE_SHARED;
1416    whandle.handle = names[0];
1417    whandle.stride = strides[0];
1418    whandle.offset = offsets[0];
1419    whandle.modifier = DRM_FORMAT_MOD_INVALID;
1420
1421    img = dri2_create_image_from_winsys(screen, width, height, format,
1422                                        1, &whandle, loaderPrivate);
1423    if (img == NULL)
1424       return NULL;
1425
1426    img->dri_components = dri_components;
1427    return img;
1428 }
1429
1430 static __DRIimage *
1431 dri2_from_planar(__DRIimage *image, int plane, void *loaderPrivate)
1432 {
1433    __DRIimage *img;
1434
1435    if (plane != 0)
1436       return NULL;
1437
1438    if (image->dri_components == 0)
1439       return NULL;
1440
1441    img = dri2_dup_image(image, loaderPrivate);
1442    if (img == NULL)
1443       return NULL;
1444
1445    if (img->texture->screen->resource_changed)
1446       img->texture->screen->resource_changed(img->texture->screen,
1447                                              img->texture);
1448
1449    /* set this to 0 for sub images. */
1450    img->dri_components = 0;
1451    return img;
1452 }
1453
1454 static __DRIimage *
1455 dri2_from_fds(__DRIscreen *screen, int width, int height, int fourcc,
1456               int *fds, int num_fds, int *strides, int *offsets,
1457               void *loaderPrivate)
1458 {
1459    __DRIimage *img;
1460    int dri_components;
1461
1462    img = dri2_create_image_from_fd(screen, width, height, fourcc,
1463                                    DRM_FORMAT_MOD_INVALID, fds, num_fds,
1464                                    strides, offsets, NULL,
1465                                    &dri_components, loaderPrivate);
1466    if (img == NULL)
1467       return NULL;
1468
1469    img->dri_components = dri_components;
1470    return img;
1471 }
1472
1473 static boolean
1474 dri2_query_dma_buf_formats(__DRIscreen *_screen, int max, int *formats,
1475                            int *count)
1476 {
1477    struct dri_screen *screen = dri_screen(_screen);
1478    struct pipe_screen *pscreen = screen->base.screen;
1479    const unsigned bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
1480    int i, j;
1481
1482    for (i = 0, j = 0; (i < ARRAY_SIZE(fourcc_formats)) &&
1483          (j < max || max == 0); i++) {
1484       if (pscreen->is_format_supported(pscreen,
1485                                        fourcc_to_pipe_format(
1486                                           fourcc_formats[i]),
1487                                        screen->target,
1488                                        0, bind)) {
1489          if (j < max)
1490             formats[j] = fourcc_formats[i];
1491          j++;
1492       }
1493    }
1494    *count = j;
1495    return true;
1496 }
1497
1498 static boolean
1499 dri2_query_dma_buf_modifiers(__DRIscreen *_screen, int fourcc, int max,
1500                              uint64_t *modifiers, unsigned int *external_only,
1501                              int *count)
1502 {
1503    struct dri_screen *screen = dri_screen(_screen);
1504    struct pipe_screen *pscreen = screen->base.screen;
1505    enum pipe_format format = fourcc_to_pipe_format(fourcc);
1506    const unsigned usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
1507
1508    if (pscreen->query_dmabuf_modifiers != NULL &&
1509        pscreen->is_format_supported(pscreen, format, screen->target, 0, usage)) {
1510       pscreen->query_dmabuf_modifiers(pscreen, format, max, modifiers,
1511                                       external_only, count);
1512       return true;
1513    }
1514    return false;
1515 }
1516
1517 static __DRIimage *
1518 dri2_from_dma_bufs(__DRIscreen *screen,
1519                    int width, int height, int fourcc,
1520                    int *fds, int num_fds,
1521                    int *strides, int *offsets,
1522                    enum __DRIYUVColorSpace yuv_color_space,
1523                    enum __DRISampleRange sample_range,
1524                    enum __DRIChromaSiting horizontal_siting,
1525                    enum __DRIChromaSiting vertical_siting,
1526                    unsigned *error,
1527                    void *loaderPrivate)
1528 {
1529    __DRIimage *img;
1530    int dri_components;
1531
1532    img = dri2_create_image_from_fd(screen, width, height, fourcc,
1533                                    DRM_FORMAT_MOD_INVALID, fds, num_fds,
1534                                    strides, offsets, error,
1535                                    &dri_components, loaderPrivate);
1536    if (img == NULL)
1537       return NULL;
1538
1539    img->yuv_color_space = yuv_color_space;
1540    img->sample_range = sample_range;
1541    img->horizontal_siting = horizontal_siting;
1542    img->vertical_siting = vertical_siting;
1543    img->dri_components = dri_components;
1544
1545    *error = __DRI_IMAGE_ERROR_SUCCESS;
1546    return img;
1547 }
1548
1549 static __DRIimage *
1550 dri2_from_dma_bufs2(__DRIscreen *screen,
1551                     int width, int height, int fourcc,
1552                     uint64_t modifier, int *fds, int num_fds,
1553                     int *strides, int *offsets,
1554                     enum __DRIYUVColorSpace yuv_color_space,
1555                     enum __DRISampleRange sample_range,
1556                     enum __DRIChromaSiting horizontal_siting,
1557                     enum __DRIChromaSiting vertical_siting,
1558                     unsigned *error,
1559                     void *loaderPrivate)
1560 {
1561    __DRIimage *img;
1562    int dri_components;
1563
1564    img = dri2_create_image_from_fd(screen, width, height, fourcc,
1565                                    modifier, fds, num_fds, strides, offsets,
1566                                    error, &dri_components, loaderPrivate);
1567    if (img == NULL)
1568       return NULL;
1569
1570    img->yuv_color_space = yuv_color_space;
1571    img->sample_range = sample_range;
1572    img->horizontal_siting = horizontal_siting;
1573    img->vertical_siting = vertical_siting;
1574    img->dri_components = dri_components;
1575
1576    *error = __DRI_IMAGE_ERROR_SUCCESS;
1577    return img;
1578 }
1579
1580 static void
1581 dri2_blit_image(__DRIcontext *context, __DRIimage *dst, __DRIimage *src,
1582                 int dstx0, int dsty0, int dstwidth, int dstheight,
1583                 int srcx0, int srcy0, int srcwidth, int srcheight,
1584                 int flush_flag)
1585 {
1586    struct dri_context *ctx = dri_context(context);
1587    struct pipe_context *pipe = ctx->st->pipe;
1588    struct pipe_screen *screen;
1589    struct pipe_fence_handle *fence;
1590    struct pipe_blit_info blit;
1591
1592    if (!dst || !src)
1593       return;
1594
1595    memset(&blit, 0, sizeof(blit));
1596    blit.dst.resource = dst->texture;
1597    blit.dst.box.x = dstx0;
1598    blit.dst.box.y = dsty0;
1599    blit.dst.box.width = dstwidth;
1600    blit.dst.box.height = dstheight;
1601    blit.dst.box.depth = 1;
1602    blit.dst.format = dst->texture->format;
1603    blit.src.resource = src->texture;
1604    blit.src.box.x = srcx0;
1605    blit.src.box.y = srcy0;
1606    blit.src.box.width = srcwidth;
1607    blit.src.box.height = srcheight;
1608    blit.src.box.depth = 1;
1609    blit.src.format = src->texture->format;
1610    blit.mask = PIPE_MASK_RGBA;
1611    blit.filter = PIPE_TEX_FILTER_NEAREST;
1612
1613    pipe->blit(pipe, &blit);
1614
1615    if (flush_flag == __BLIT_FLAG_FLUSH) {
1616       pipe->flush_resource(pipe, dst->texture);
1617       ctx->st->flush(ctx->st, 0, NULL);
1618    } else if (flush_flag == __BLIT_FLAG_FINISH) {
1619       screen = dri_screen(ctx->sPriv)->base.screen;
1620       pipe->flush_resource(pipe, dst->texture);
1621       ctx->st->flush(ctx->st, 0, &fence);
1622       (void) screen->fence_finish(screen, NULL, fence, PIPE_TIMEOUT_INFINITE);
1623       screen->fence_reference(screen, &fence, NULL);
1624    }
1625 }
1626
1627 static void *
1628 dri2_map_image(__DRIcontext *context, __DRIimage *image,
1629                 int x0, int y0, int width, int height,
1630                 unsigned int flags, int *stride, void **data)
1631 {
1632    struct dri_context *ctx = dri_context(context);
1633    struct pipe_context *pipe = ctx->st->pipe;
1634    enum pipe_transfer_usage pipe_access = 0;
1635    struct pipe_transfer *trans;
1636    void *map;
1637
1638    if (!image || !data || *data)
1639       return NULL;
1640
1641    if (flags & __DRI_IMAGE_TRANSFER_READ)
1642          pipe_access |= PIPE_TRANSFER_READ;
1643    if (flags & __DRI_IMAGE_TRANSFER_WRITE)
1644          pipe_access |= PIPE_TRANSFER_WRITE;
1645
1646    map = pipe_transfer_map(pipe, image->texture,
1647                            0, 0, pipe_access, x0, y0, width, height,
1648                            &trans);
1649    if (map) {
1650       *data = trans;
1651       *stride = trans->stride;
1652    }
1653
1654    return map;
1655 }
1656
1657 static void
1658 dri2_unmap_image(__DRIcontext *context, __DRIimage *image, void *data)
1659 {
1660    struct dri_context *ctx = dri_context(context);
1661    struct pipe_context *pipe = ctx->st->pipe;
1662
1663    pipe_transfer_unmap(pipe, (struct pipe_transfer *)data);
1664 }
1665
1666 static int
1667 dri2_get_capabilities(__DRIscreen *_screen)
1668 {
1669    struct dri_screen *screen = dri_screen(_screen);
1670
1671    return (screen->can_share_buffer ? __DRI_IMAGE_CAP_GLOBAL_NAMES : 0);
1672 }
1673
1674 /* The extension is modified during runtime if DRI_PRIME is detected */
1675 static __DRIimageExtension dri2ImageExtension = {
1676     .base = { __DRI_IMAGE, 17 },
1677
1678     .createImageFromName          = dri2_create_image_from_name,
1679     .createImageFromRenderbuffer  = dri2_create_image_from_renderbuffer,
1680     .destroyImage                 = dri2_destroy_image,
1681     .createImage                  = dri2_create_image,
1682     .queryImage                   = dri2_query_image,
1683     .dupImage                     = dri2_dup_image,
1684     .validateUsage                = dri2_validate_usage,
1685     .createImageFromNames         = dri2_from_names,
1686     .fromPlanar                   = dri2_from_planar,
1687     .createImageFromTexture       = dri2_create_from_texture,
1688     .createImageFromFds           = NULL,
1689     .createImageFromDmaBufs       = NULL,
1690     .blitImage                    = dri2_blit_image,
1691     .getCapabilities              = dri2_get_capabilities,
1692     .mapImage                     = dri2_map_image,
1693     .unmapImage                   = dri2_unmap_image,
1694     .createImageWithModifiers     = NULL,
1695     .createImageFromDmaBufs2      = NULL,
1696     .queryDmaBufFormats           = NULL,
1697     .queryDmaBufModifiers         = NULL,
1698     .queryDmaBufFormatModifierAttribs = NULL,
1699     .createImageFromRenderbuffer2 = dri2_create_image_from_renderbuffer2,
1700 };
1701
1702 static const __DRIrobustnessExtension dri2Robustness = {
1703    .base = { __DRI2_ROBUSTNESS, 1 }
1704 };
1705
1706 static int
1707 dri2_interop_query_device_info(__DRIcontext *_ctx,
1708                                struct mesa_glinterop_device_info *out)
1709 {
1710    struct pipe_screen *screen = dri_context(_ctx)->st->pipe->screen;
1711
1712    /* There is no version 0, thus we do not support it */
1713    if (out->version == 0)
1714       return MESA_GLINTEROP_INVALID_VERSION;
1715
1716    out->pci_segment_group = screen->get_param(screen, PIPE_CAP_PCI_GROUP);
1717    out->pci_bus = screen->get_param(screen, PIPE_CAP_PCI_BUS);
1718    out->pci_device = screen->get_param(screen, PIPE_CAP_PCI_DEVICE);
1719    out->pci_function = screen->get_param(screen, PIPE_CAP_PCI_FUNCTION);
1720
1721    out->vendor_id = screen->get_param(screen, PIPE_CAP_VENDOR_ID);
1722    out->device_id = screen->get_param(screen, PIPE_CAP_DEVICE_ID);
1723
1724    /* Instruct the caller that we support up-to version one of the interface */
1725    out->version = 1;
1726
1727    return MESA_GLINTEROP_SUCCESS;
1728 }
1729
1730 static int
1731 dri2_interop_export_object(__DRIcontext *_ctx,
1732                            struct mesa_glinterop_export_in *in,
1733                            struct mesa_glinterop_export_out *out)
1734 {
1735    struct st_context_iface *st = dri_context(_ctx)->st;
1736    struct pipe_screen *screen = st->pipe->screen;
1737    struct gl_context *ctx = ((struct st_context *)st)->ctx;
1738    struct pipe_resource *res = NULL;
1739    struct winsys_handle whandle;
1740    unsigned target, usage;
1741    boolean success;
1742
1743    /* There is no version 0, thus we do not support it */
1744    if (in->version == 0 || out->version == 0)
1745       return MESA_GLINTEROP_INVALID_VERSION;
1746
1747    /* Validate the target. */
1748    switch (in->target) {
1749    case GL_TEXTURE_BUFFER:
1750    case GL_TEXTURE_1D:
1751    case GL_TEXTURE_2D:
1752    case GL_TEXTURE_3D:
1753    case GL_TEXTURE_RECTANGLE:
1754    case GL_TEXTURE_1D_ARRAY:
1755    case GL_TEXTURE_2D_ARRAY:
1756    case GL_TEXTURE_CUBE_MAP_ARRAY:
1757    case GL_TEXTURE_CUBE_MAP:
1758    case GL_TEXTURE_2D_MULTISAMPLE:
1759    case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
1760    case GL_TEXTURE_EXTERNAL_OES:
1761    case GL_RENDERBUFFER:
1762    case GL_ARRAY_BUFFER:
1763       target = in->target;
1764       break;
1765    case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1766    case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1767    case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1768    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1769    case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1770    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1771       target = GL_TEXTURE_CUBE_MAP;
1772       break;
1773    default:
1774       return MESA_GLINTEROP_INVALID_TARGET;
1775    }
1776
1777    /* Validate the simple case of miplevel. */
1778    if ((target == GL_RENDERBUFFER || target == GL_ARRAY_BUFFER) &&
1779        in->miplevel != 0)
1780       return MESA_GLINTEROP_INVALID_MIP_LEVEL;
1781
1782    /* Validate the OpenGL object and get pipe_resource. */
1783    simple_mtx_lock(&ctx->Shared->Mutex);
1784
1785    if (target == GL_ARRAY_BUFFER) {
1786       /* Buffer objects.
1787        *
1788        * The error checking is based on the documentation of
1789        * clCreateFromGLBuffer from OpenCL 2.0 SDK.
1790        */
1791       struct gl_buffer_object *buf = _mesa_lookup_bufferobj(ctx, in->obj);
1792
1793       /* From OpenCL 2.0 SDK, clCreateFromGLBuffer:
1794        *  "CL_INVALID_GL_OBJECT if bufobj is not a GL buffer object or is
1795        *   a GL buffer object but does not have an existing data store or
1796        *   the size of the buffer is 0."
1797        */
1798       if (!buf || buf->Size == 0) {
1799          simple_mtx_unlock(&ctx->Shared->Mutex);
1800          return MESA_GLINTEROP_INVALID_OBJECT;
1801       }
1802
1803       res = st_buffer_object(buf)->buffer;
1804       if (!res) {
1805          /* this shouldn't happen */
1806          simple_mtx_unlock(&ctx->Shared->Mutex);
1807          return MESA_GLINTEROP_INVALID_OBJECT;
1808       }
1809
1810       out->buf_offset = 0;
1811       out->buf_size = buf->Size;
1812
1813       buf->UsageHistory |= USAGE_DISABLE_MINMAX_CACHE;
1814    } else if (target == GL_RENDERBUFFER) {
1815       /* Renderbuffers.
1816        *
1817        * The error checking is based on the documentation of
1818        * clCreateFromGLRenderbuffer from OpenCL 2.0 SDK.
1819        */
1820       struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, in->obj);
1821
1822       /* From OpenCL 2.0 SDK, clCreateFromGLRenderbuffer:
1823        *   "CL_INVALID_GL_OBJECT if renderbuffer is not a GL renderbuffer
1824        *    object or if the width or height of renderbuffer is zero."
1825        */
1826       if (!rb || rb->Width == 0 || rb->Height == 0) {
1827          simple_mtx_unlock(&ctx->Shared->Mutex);
1828          return MESA_GLINTEROP_INVALID_OBJECT;
1829       }
1830
1831       /* From OpenCL 2.0 SDK, clCreateFromGLRenderbuffer:
1832        *   "CL_INVALID_OPERATION if renderbuffer is a multi-sample GL
1833        *    renderbuffer object."
1834        */
1835       if (rb->NumSamples > 1) {
1836          simple_mtx_unlock(&ctx->Shared->Mutex);
1837          return MESA_GLINTEROP_INVALID_OPERATION;
1838       }
1839
1840       /* From OpenCL 2.0 SDK, clCreateFromGLRenderbuffer:
1841        *   "CL_OUT_OF_RESOURCES if there is a failure to allocate resources
1842        *    required by the OpenCL implementation on the device."
1843        */
1844       res = st_renderbuffer(rb)->texture;
1845       if (!res) {
1846          simple_mtx_unlock(&ctx->Shared->Mutex);
1847          return MESA_GLINTEROP_OUT_OF_RESOURCES;
1848       }
1849
1850       out->internal_format = rb->InternalFormat;
1851       out->view_minlevel = 0;
1852       out->view_numlevels = 1;
1853       out->view_minlayer = 0;
1854       out->view_numlayers = 1;
1855    } else {
1856       /* Texture objects.
1857        *
1858        * The error checking is based on the documentation of
1859        * clCreateFromGLTexture from OpenCL 2.0 SDK.
1860        */
1861       struct gl_texture_object *obj = _mesa_lookup_texture(ctx, in->obj);
1862
1863       if (obj)
1864          _mesa_test_texobj_completeness(ctx, obj);
1865
1866       /* From OpenCL 2.0 SDK, clCreateFromGLTexture:
1867        *   "CL_INVALID_GL_OBJECT if texture is not a GL texture object whose
1868        *    type matches texture_target, if the specified miplevel of texture
1869        *    is not defined, or if the width or height of the specified
1870        *    miplevel is zero or if the GL texture object is incomplete."
1871        */
1872       if (!obj ||
1873           obj->Target != target ||
1874           !obj->_BaseComplete ||
1875           (in->miplevel > 0 && !obj->_MipmapComplete)) {
1876          simple_mtx_unlock(&ctx->Shared->Mutex);
1877          return MESA_GLINTEROP_INVALID_OBJECT;
1878       }
1879
1880       /* From OpenCL 2.0 SDK, clCreateFromGLTexture:
1881        *   "CL_INVALID_MIP_LEVEL if miplevel is less than the value of
1882        *    levelbase (for OpenGL implementations) or zero (for OpenGL ES
1883        *    implementations); or greater than the value of q (for both OpenGL
1884        *    and OpenGL ES). levelbase and q are defined for the texture in
1885        *    section 3.8.10 (Texture Completeness) of the OpenGL 2.1
1886        *    specification and section 3.7.10 of the OpenGL ES 2.0."
1887        */
1888       if (in->miplevel < obj->BaseLevel || in->miplevel > obj->_MaxLevel) {
1889          simple_mtx_unlock(&ctx->Shared->Mutex);
1890          return MESA_GLINTEROP_INVALID_MIP_LEVEL;
1891       }
1892
1893       if (!st_finalize_texture(ctx, st->pipe, obj, 0)) {
1894          simple_mtx_unlock(&ctx->Shared->Mutex);
1895          return MESA_GLINTEROP_OUT_OF_RESOURCES;
1896       }
1897
1898       res = st_get_texobj_resource(obj);
1899       if (!res) {
1900          /* Incomplete texture buffer object? This shouldn't really occur. */
1901          simple_mtx_unlock(&ctx->Shared->Mutex);
1902          return MESA_GLINTEROP_INVALID_OBJECT;
1903       }
1904
1905       if (target == GL_TEXTURE_BUFFER) {
1906          out->internal_format = obj->BufferObjectFormat;
1907          out->buf_offset = obj->BufferOffset;
1908          out->buf_size = obj->BufferSize == -1 ? obj->BufferObject->Size :
1909                                                  obj->BufferSize;
1910
1911          obj->BufferObject->UsageHistory |= USAGE_DISABLE_MINMAX_CACHE;
1912       } else {
1913          out->internal_format = obj->Image[0][0]->InternalFormat;
1914          out->view_minlevel = obj->MinLevel;
1915          out->view_numlevels = obj->NumLevels;
1916          out->view_minlayer = obj->MinLayer;
1917          out->view_numlayers = obj->NumLayers;
1918       }
1919    }
1920
1921    /* Get the handle. */
1922    switch (in->access) {
1923    case MESA_GLINTEROP_ACCESS_READ_WRITE:
1924       usage = PIPE_HANDLE_USAGE_READ_WRITE;
1925       break;
1926    case MESA_GLINTEROP_ACCESS_READ_ONLY:
1927       usage = PIPE_HANDLE_USAGE_READ;
1928       break;
1929    case MESA_GLINTEROP_ACCESS_WRITE_ONLY:
1930       usage = PIPE_HANDLE_USAGE_WRITE;
1931       break;
1932    default:
1933       usage = 0;
1934    }
1935
1936    memset(&whandle, 0, sizeof(whandle));
1937    whandle.type = DRM_API_HANDLE_TYPE_FD;
1938
1939    success = screen->resource_get_handle(screen, st->pipe, res, &whandle,
1940                                          usage);
1941    simple_mtx_unlock(&ctx->Shared->Mutex);
1942
1943    if (!success)
1944       return MESA_GLINTEROP_OUT_OF_HOST_MEMORY;
1945
1946    out->dmabuf_fd = whandle.handle;
1947    out->out_driver_data_written = 0;
1948
1949    if (res->target == PIPE_BUFFER)
1950       out->buf_offset += whandle.offset;
1951
1952    /* Instruct the caller that we support up-to version one of the interface */
1953    in->version = 1;
1954    out->version = 1;
1955
1956    return MESA_GLINTEROP_SUCCESS;
1957 }
1958
1959 static const __DRI2interopExtension dri2InteropExtension = {
1960    .base = { __DRI2_INTEROP, 1 },
1961    .query_device_info = dri2_interop_query_device_info,
1962    .export_object = dri2_interop_export_object
1963 };
1964
1965 /**
1966  * \brief the DRI2ConfigQueryExtension configQueryb method
1967  */
1968 static int
1969 dri2GalliumConfigQueryb(__DRIscreen *sPriv, const char *var,
1970                         unsigned char *val)
1971 {
1972    struct dri_screen *screen = dri_screen(sPriv);
1973
1974    if (!driCheckOption(&screen->dev->option_cache, var, DRI_BOOL))
1975       return dri2ConfigQueryExtension.configQueryb(sPriv, var, val);
1976
1977    *val = driQueryOptionb(&screen->dev->option_cache, var);
1978
1979    return 0;
1980 }
1981
1982 /**
1983  * \brief the DRI2ConfigQueryExtension configQueryi method
1984  */
1985 static int
1986 dri2GalliumConfigQueryi(__DRIscreen *sPriv, const char *var, int *val)
1987 {
1988    struct dri_screen *screen = dri_screen(sPriv);
1989
1990    if (!driCheckOption(&screen->dev->option_cache, var, DRI_INT) &&
1991        !driCheckOption(&screen->dev->option_cache, var, DRI_ENUM))
1992       return dri2ConfigQueryExtension.configQueryi(sPriv, var, val);
1993
1994     *val = driQueryOptioni(&screen->dev->option_cache, var);
1995
1996     return 0;
1997 }
1998
1999 /**
2000  * \brief the DRI2ConfigQueryExtension configQueryf method
2001  */
2002 static int
2003 dri2GalliumConfigQueryf(__DRIscreen *sPriv, const char *var, float *val)
2004 {
2005    struct dri_screen *screen = dri_screen(sPriv);
2006
2007    if (!driCheckOption(&screen->dev->option_cache, var, DRI_FLOAT))
2008       return dri2ConfigQueryExtension.configQueryf(sPriv, var, val);
2009
2010     *val = driQueryOptionf(&screen->dev->option_cache, var);
2011
2012     return 0;
2013 }
2014
2015 /**
2016  * \brief the DRI2ConfigQueryExtension struct.
2017  *
2018  * We first query the driver option cache. Then the dri2 option cache.
2019  */
2020 static const __DRI2configQueryExtension dri2GalliumConfigQueryExtension = {
2021    .base = { __DRI2_CONFIG_QUERY, 1 },
2022
2023    .configQueryb        = dri2GalliumConfigQueryb,
2024    .configQueryi        = dri2GalliumConfigQueryi,
2025    .configQueryf        = dri2GalliumConfigQueryf,
2026 };
2027
2028 /*
2029  * Backend function init_screen.
2030  */
2031
2032 static const __DRIextension *dri_screen_extensions[] = {
2033    &driTexBufferExtension.base,
2034    &dri2FlushExtension.base,
2035    &dri2ImageExtension.base,
2036    &dri2RendererQueryExtension.base,
2037    &dri2GalliumConfigQueryExtension.base,
2038    &dri2ThrottleExtension.base,
2039    &dri2FenceExtension.base,
2040    &dri2InteropExtension.base,
2041    &dri2NoErrorExtension.base,
2042    NULL
2043 };
2044
2045 static const __DRIextension *dri_robust_screen_extensions[] = {
2046    &driTexBufferExtension.base,
2047    &dri2FlushExtension.base,
2048    &dri2ImageExtension.base,
2049    &dri2RendererQueryExtension.base,
2050    &dri2GalliumConfigQueryExtension.base,
2051    &dri2ThrottleExtension.base,
2052    &dri2FenceExtension.base,
2053    &dri2InteropExtension.base,
2054    &dri2Robustness.base,
2055    &dri2NoErrorExtension.base,
2056    NULL
2057 };
2058
2059 /**
2060  * This is the driver specific part of the createNewScreen entry point.
2061  *
2062  * Returns the struct gl_config supported by this driver.
2063  */
2064 static const __DRIconfig **
2065 dri2_init_screen(__DRIscreen * sPriv)
2066 {
2067    const __DRIconfig **configs;
2068    struct dri_screen *screen;
2069    struct pipe_screen *pscreen = NULL;
2070    const struct drm_conf_ret *throttle_ret;
2071    const struct drm_conf_ret *dmabuf_ret;
2072    int fd;
2073
2074    screen = CALLOC_STRUCT(dri_screen);
2075    if (!screen)
2076       return NULL;
2077
2078    screen->sPriv = sPriv;
2079    screen->fd = sPriv->fd;
2080    (void) mtx_init(&screen->opencl_func_mutex, mtx_plain);
2081
2082    sPriv->driverPrivate = (void *)screen;
2083
2084    if (screen->fd < 0 || (fd = fcntl(screen->fd, F_DUPFD_CLOEXEC, 3)) < 0)
2085       goto free_screen;
2086
2087
2088    if (pipe_loader_drm_probe_fd(&screen->dev, fd)) {
2089       dri_init_options(screen);
2090
2091       pscreen = pipe_loader_create_screen(screen->dev);
2092    }
2093
2094    if (!pscreen)
2095        goto release_pipe;
2096
2097    throttle_ret = pipe_loader_configuration(screen->dev, DRM_CONF_THROTTLE);
2098    dmabuf_ret = pipe_loader_configuration(screen->dev, DRM_CONF_SHARE_FD);
2099
2100    if (throttle_ret && throttle_ret->val.val_int != -1) {
2101       screen->throttling_enabled = TRUE;
2102       screen->default_throttle_frames = throttle_ret->val.val_int;
2103    }
2104
2105    if (pscreen->resource_create_with_modifiers)
2106       dri2ImageExtension.createImageWithModifiers =
2107          dri2_create_image_with_modifiers;
2108
2109    if (dmabuf_ret && dmabuf_ret->val.val_bool) {
2110       uint64_t cap;
2111
2112       if (drmGetCap(sPriv->fd, DRM_CAP_PRIME, &cap) == 0 &&
2113           (cap & DRM_PRIME_CAP_IMPORT)) {
2114          dri2ImageExtension.createImageFromFds = dri2_from_fds;
2115          dri2ImageExtension.createImageFromDmaBufs = dri2_from_dma_bufs;
2116          dri2ImageExtension.createImageFromDmaBufs2 = dri2_from_dma_bufs2;
2117          if (pscreen->query_dmabuf_modifiers) {
2118             dri2ImageExtension.queryDmaBufFormats = dri2_query_dma_buf_formats;
2119             dri2ImageExtension.queryDmaBufModifiers =
2120                                        dri2_query_dma_buf_modifiers;
2121          }
2122       }
2123    }
2124
2125    if (pscreen->get_param(pscreen, PIPE_CAP_DEVICE_RESET_STATUS_QUERY)) {
2126       sPriv->extensions = dri_robust_screen_extensions;
2127       screen->has_reset_status_query = true;
2128    }
2129    else
2130       sPriv->extensions = dri_screen_extensions;
2131
2132    configs = dri_init_screen_helper(screen, pscreen);
2133    if (!configs)
2134       goto destroy_screen;
2135
2136    screen->can_share_buffer = true;
2137    screen->auto_fake_front = dri_with_format(sPriv);
2138    screen->broken_invalidate = !sPriv->dri2.useInvalidate;
2139    screen->lookup_egl_image = dri2_lookup_egl_image;
2140
2141    return configs;
2142
2143 destroy_screen:
2144    dri_destroy_screen_helper(screen);
2145
2146 release_pipe:
2147    if (screen->dev)
2148       pipe_loader_release(&screen->dev, 1);
2149    else
2150       close(fd);
2151
2152 free_screen:
2153    FREE(screen);
2154    return NULL;
2155 }
2156
2157 /**
2158  * This is the driver specific part of the createNewScreen entry point.
2159  *
2160  * Returns the struct gl_config supported by this driver.
2161  */
2162 static const __DRIconfig **
2163 dri_kms_init_screen(__DRIscreen * sPriv)
2164 {
2165 #if defined(GALLIUM_SOFTPIPE)
2166    const __DRIconfig **configs;
2167    struct dri_screen *screen;
2168    struct pipe_screen *pscreen = NULL;
2169    uint64_t cap;
2170    int fd;
2171
2172    screen = CALLOC_STRUCT(dri_screen);
2173    if (!screen)
2174       return NULL;
2175
2176    screen->sPriv = sPriv;
2177    screen->fd = sPriv->fd;
2178
2179    sPriv->driverPrivate = (void *)screen;
2180
2181    if (screen->fd < 0 || (fd = fcntl(screen->fd, F_DUPFD_CLOEXEC, 3)) < 0)
2182       goto free_screen;
2183
2184    if (pipe_loader_sw_probe_kms(&screen->dev, fd)) {
2185       dri_init_options(screen);
2186       pscreen = pipe_loader_create_screen(screen->dev);
2187    }
2188
2189    if (!pscreen)
2190        goto release_pipe;
2191
2192    if (pscreen->resource_create_with_modifiers)
2193       dri2ImageExtension.createImageWithModifiers =
2194          dri2_create_image_with_modifiers;
2195
2196    if (drmGetCap(sPriv->fd, DRM_CAP_PRIME, &cap) == 0 &&
2197           (cap & DRM_PRIME_CAP_IMPORT)) {
2198       dri2ImageExtension.createImageFromFds = dri2_from_fds;
2199       dri2ImageExtension.createImageFromDmaBufs = dri2_from_dma_bufs;
2200       dri2ImageExtension.createImageFromDmaBufs2 = dri2_from_dma_bufs2;
2201       dri2ImageExtension.queryDmaBufFormats = dri2_query_dma_buf_formats;
2202       dri2ImageExtension.queryDmaBufModifiers = dri2_query_dma_buf_modifiers;
2203    }
2204
2205    sPriv->extensions = dri_screen_extensions;
2206
2207    configs = dri_init_screen_helper(screen, pscreen);
2208    if (!configs)
2209       goto destroy_screen;
2210
2211    screen->can_share_buffer = false;
2212    screen->auto_fake_front = dri_with_format(sPriv);
2213    screen->broken_invalidate = !sPriv->dri2.useInvalidate;
2214    screen->lookup_egl_image = dri2_lookup_egl_image;
2215
2216    return configs;
2217
2218 destroy_screen:
2219    dri_destroy_screen_helper(screen);
2220
2221 release_pipe:
2222    if (screen->dev)
2223       pipe_loader_release(&screen->dev, 1);
2224    else
2225       close(fd);
2226
2227 free_screen:
2228    FREE(screen);
2229 #endif // GALLIUM_SOFTPIPE
2230    return NULL;
2231 }
2232
2233 static boolean
2234 dri2_create_buffer(__DRIscreen * sPriv,
2235                    __DRIdrawable * dPriv,
2236                    const struct gl_config * visual, boolean isPixmap)
2237 {
2238    struct dri_drawable *drawable = NULL;
2239
2240    if (!dri_create_buffer(sPriv, dPriv, visual, isPixmap))
2241       return FALSE;
2242
2243    drawable = dPriv->driverPrivate;
2244
2245    drawable->allocate_textures = dri2_allocate_textures;
2246    drawable->flush_frontbuffer = dri2_flush_frontbuffer;
2247    drawable->update_tex_buffer = dri2_update_tex_buffer;
2248    drawable->flush_swapbuffers = dri2_flush_swapbuffers;
2249
2250    return TRUE;
2251 }
2252
2253 /**
2254  * DRI driver virtual function table.
2255  *
2256  * DRI versions differ in their implementation of init_screen and swap_buffers.
2257  */
2258 const struct __DriverAPIRec galliumdrm_driver_api = {
2259    .InitScreen = dri2_init_screen,
2260    .DestroyScreen = dri_destroy_screen,
2261    .CreateContext = dri_create_context,
2262    .DestroyContext = dri_destroy_context,
2263    .CreateBuffer = dri2_create_buffer,
2264    .DestroyBuffer = dri_destroy_buffer,
2265    .MakeCurrent = dri_make_current,
2266    .UnbindContext = dri_unbind_context,
2267
2268    .AllocateBuffer = dri2_allocate_buffer,
2269    .ReleaseBuffer  = dri2_release_buffer,
2270 };
2271
2272 /**
2273  * DRI driver virtual function table.
2274  *
2275  * KMS/DRM version of the DriverAPI above sporting a different InitScreen
2276  * hook. The latter is used to explicitly initialise the kms_swrast driver
2277  * rather than selecting the approapriate driver as suggested by the loader.
2278  */
2279 const struct __DriverAPIRec dri_kms_driver_api = {
2280    .InitScreen = dri_kms_init_screen,
2281    .DestroyScreen = dri_destroy_screen,
2282    .CreateContext = dri_create_context,
2283    .DestroyContext = dri_destroy_context,
2284    .CreateBuffer = dri2_create_buffer,
2285    .DestroyBuffer = dri_destroy_buffer,
2286    .MakeCurrent = dri_make_current,
2287    .UnbindContext = dri_unbind_context,
2288
2289    .AllocateBuffer = dri2_allocate_buffer,
2290    .ReleaseBuffer  = dri2_release_buffer,
2291 };
2292
2293 /* This is the table of extensions that the loader will dlsym() for. */
2294 const __DRIextension *galliumdrm_driver_extensions[] = {
2295     &driCoreExtension.base,
2296     &driImageDriverExtension.base,
2297     &driDRI2Extension.base,
2298     &gallium_config_options.base,
2299     NULL
2300 };
2301
2302 /* vim: set sw=3 ts=8 sts=3 expandtab: */