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 "GL/mesa_glinterop.h"
  33 #include "util/disk_cache.h"
  34 #include "util/u_memory.h"
  35 #include "util/u_inlines.h"
  36 #include "util/format/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_util.h"
  49
  50 #include "dri_helpers.h"
  51 #include "dri_drawable.h"
  52 #include "dri_query_renderer.h"
  53
  54 #include "drm-uapi/drm_fourcc.h"
  55
  56 struct dri2_buffer
  57 {
  58    __DRIbuffer base;
  59    struct pipe_resource *resource;
  60 };
  61
  62 static inline struct dri2_buffer *
  63 dri2_buffer(__DRIbuffer * driBufferPriv)
  64 {
  65    return (struct dri2_buffer *) driBufferPriv;
  66 }
  67
  68 /**
  69  * DRI2 flush extension.
  70  */
  71 static void
  72 dri2_flush_drawable(__DRIdrawable *dPriv)
  73 {
  74    dri_flush(dPriv->driContextPriv, dPriv, __DRI2_FLUSH_DRAWABLE, -1);
  75 }
  76
  77 static void
  78 dri2_invalidate_drawable(__DRIdrawable *dPriv)
  79 {
  80    struct dri_drawable *drawable = dri_drawable(dPriv);
  81
  82    dri2InvalidateDrawable(dPriv);
  83    drawable->dPriv->lastStamp = drawable->dPriv->dri2.stamp;
  84    drawable->texture_mask = 0;
  85
  86    p_atomic_inc(&drawable->base.stamp);
  87 }
  88
  89 static const __DRI2flushExtension dri2FlushExtension = {
  90     .base = { __DRI2_FLUSH, 4 },
  91
  92     .flush                = dri2_flush_drawable,
  93     .invalidate           = dri2_invalidate_drawable,
  94     .flush_with_flags     = dri_flush,
  95 };
  96
  97 /**
  98  * Retrieve __DRIbuffer from the DRI loader.
  99  */
 100 static __DRIbuffer *
 101 dri2_drawable_get_buffers(struct dri_drawable *drawable,
 102                           const enum st_attachment_type *atts,
 103                           unsigned *count)
 104 {
 105    __DRIdrawable *dri_drawable = drawable->dPriv;
 106    const __DRIdri2LoaderExtension *loader = drawable->sPriv->dri2.loader;
 107    boolean with_format;
 108    __DRIbuffer *buffers;
 109    int num_buffers;
 110    unsigned attachments[10];
 111    unsigned num_attachments, i;
 112
 113    assert(loader);
 114    with_format = dri_with_format(drawable->sPriv);
 115
 116    num_attachments = 0;
 117
 118    /* for Xserver 1.6.0 (DRI2 version 1) we always need to ask for the front */
 119    if (!with_format)
 120       attachments[num_attachments++] = __DRI_BUFFER_FRONT_LEFT;
 121
 122    for (i = 0; i < *count; i++) {
 123       enum pipe_format format;
 124       unsigned bind;
 125       int att, depth;
 126
 127       dri_drawable_get_format(drawable, atts[i], &format, &bind);
 128       if (format == PIPE_FORMAT_NONE)
 129          continue;
 130
 131       switch (atts[i]) {
 132       case ST_ATTACHMENT_FRONT_LEFT:
 133          /* already added */
 134          if (!with_format)
 135             continue;
 136          att = __DRI_BUFFER_FRONT_LEFT;
 137          break;
 138       case ST_ATTACHMENT_BACK_LEFT:
 139          att = __DRI_BUFFER_BACK_LEFT;
 140          break;
 141       case ST_ATTACHMENT_FRONT_RIGHT:
 142          att = __DRI_BUFFER_FRONT_RIGHT;
 143          break;
 144       case ST_ATTACHMENT_BACK_RIGHT:
 145          att = __DRI_BUFFER_BACK_RIGHT;
 146          break;
 147       default:
 148          continue;
 149       }
 150
 151       /*
 152        * In this switch statement we must support all formats that
 153        * may occur as the stvis->color_format.
 154        */
 155       switch(format) {
 156       case PIPE_FORMAT_R16G16B16A16_FLOAT:
 157          depth = 64;
 158          break;
 159       case PIPE_FORMAT_R16G16B16X16_FLOAT:
 160          depth = 48;
 161          break;
 162       case PIPE_FORMAT_B10G10R10A2_UNORM:
 163       case PIPE_FORMAT_R10G10B10A2_UNORM:
 164       case PIPE_FORMAT_BGRA8888_UNORM:
 165       case PIPE_FORMAT_RGBA8888_UNORM:
 166          depth = 32;
 167          break;
 168       case PIPE_FORMAT_R10G10B10X2_UNORM:
 169       case PIPE_FORMAT_B10G10R10X2_UNORM:
 170          depth = 30;
 171          break;
 172       case PIPE_FORMAT_BGRX8888_UNORM:
 173       case PIPE_FORMAT_RGBX8888_UNORM:
 174          depth = 24;
 175          break;
 176       case PIPE_FORMAT_B5G6R5_UNORM:
 177          depth = 16;
 178          break;
 179       default:
 180          depth = util_format_get_blocksizebits(format);
 181          assert(!"Unexpected format in dri2_drawable_get_buffers()");
 182       }
 183
 184       attachments[num_attachments++] = att;
 185       if (with_format) {
 186          attachments[num_attachments++] = depth;
 187       }
 188    }
 189
 190    if (with_format) {
 191       num_attachments /= 2;
 192       buffers = loader->getBuffersWithFormat(dri_drawable,
 193             &dri_drawable->w, &dri_drawable->h,
 194             attachments, num_attachments,
 195             &num_buffers, dri_drawable->loaderPrivate);
 196    }
 197    else {
 198       buffers = loader->getBuffers(dri_drawable,
 199             &dri_drawable->w, &dri_drawable->h,
 200             attachments, num_attachments,
 201             &num_buffers, dri_drawable->loaderPrivate);
 202    }
 203
 204    if (buffers)
 205       *count = num_buffers;
 206
 207    return buffers;
 208 }
 209
 210 static bool
 211 dri_image_drawable_get_buffers(struct dri_drawable *drawable,
 212                                struct __DRIimageList *images,
 213                                const enum st_attachment_type *statts,
 214                                unsigned statts_count)
 215 {
 216    __DRIdrawable *dPriv = drawable->dPriv;
 217    __DRIscreen *sPriv = drawable->sPriv;
 218    unsigned int image_format = __DRI_IMAGE_FORMAT_NONE;
 219    enum pipe_format pf;
 220    uint32_t buffer_mask = 0;
 221    unsigned i, bind;
 222
 223    for (i = 0; i < statts_count; i++) {
 224       dri_drawable_get_format(drawable, statts[i], &pf, &bind);
 225       if (pf == PIPE_FORMAT_NONE)
 226          continue;
 227
 228       switch (statts[i]) {
 229       case ST_ATTACHMENT_FRONT_LEFT:
 230          buffer_mask |= __DRI_IMAGE_BUFFER_FRONT;
 231          break;
 232       case ST_ATTACHMENT_BACK_LEFT:
 233          buffer_mask |= __DRI_IMAGE_BUFFER_BACK;
 234          break;
 235       default:
 236          continue;
 237       }
 238
 239       switch (pf) {
 240       case PIPE_FORMAT_R16G16B16A16_FLOAT:
 241          image_format = __DRI_IMAGE_FORMAT_ABGR16161616F;
 242          break;
 243       case PIPE_FORMAT_R16G16B16X16_FLOAT:
 244          image_format = __DRI_IMAGE_FORMAT_XBGR16161616F;
 245          break;
 246       case PIPE_FORMAT_B5G5R5A1_UNORM:
 247          image_format = __DRI_IMAGE_FORMAT_ARGB1555;
 248          break;
 249       case PIPE_FORMAT_B5G6R5_UNORM:
 250          image_format = __DRI_IMAGE_FORMAT_RGB565;
 251          break;
 252       case PIPE_FORMAT_BGRX8888_UNORM:
 253          image_format = __DRI_IMAGE_FORMAT_XRGB8888;
 254          break;
 255       case PIPE_FORMAT_BGRA8888_UNORM:
 256          image_format = __DRI_IMAGE_FORMAT_ARGB8888;
 257          break;
 258       case PIPE_FORMAT_RGBX8888_UNORM:
 259          image_format = __DRI_IMAGE_FORMAT_XBGR8888;
 260          break;
 261       case PIPE_FORMAT_RGBA8888_UNORM:
 262          image_format = __DRI_IMAGE_FORMAT_ABGR8888;
 263          break;
 264       case PIPE_FORMAT_B10G10R10X2_UNORM:
 265          image_format = __DRI_IMAGE_FORMAT_XRGB2101010;
 266          break;
 267       case PIPE_FORMAT_B10G10R10A2_UNORM:
 268          image_format = __DRI_IMAGE_FORMAT_ARGB2101010;
 269          break;
 270       case PIPE_FORMAT_R10G10B10X2_UNORM:
 271          image_format = __DRI_IMAGE_FORMAT_XBGR2101010;
 272          break;
 273       case PIPE_FORMAT_R10G10B10A2_UNORM:
 274          image_format = __DRI_IMAGE_FORMAT_ABGR2101010;
 275          break;
 276       default:
 277          image_format = __DRI_IMAGE_FORMAT_NONE;
 278          break;
 279       }
 280    }
 281
 282    return (*sPriv->image.loader->getBuffers) (dPriv, image_format,
 283                                        (uint32_t *) &drawable->base.stamp,
 284                                        dPriv->loaderPrivate, buffer_mask,
 285                                        images);
 286 }
 287
 288 static __DRIbuffer *
 289 dri2_allocate_buffer(__DRIscreen *sPriv,
 290                      unsigned attachment, unsigned format,
 291                      int width, int height)
 292 {
 293    struct dri_screen *screen = dri_screen(sPriv);
 294    struct dri2_buffer *buffer;
 295    struct pipe_resource templ;
 296    enum pipe_format pf;
 297    unsigned bind = 0;
 298    struct winsys_handle whandle;
 299
 300    switch (attachment) {
 301       case __DRI_BUFFER_FRONT_LEFT:
 302       case __DRI_BUFFER_FAKE_FRONT_LEFT:
 303          bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 304          break;
 305       case __DRI_BUFFER_BACK_LEFT:
 306          bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 307          break;
 308       case __DRI_BUFFER_DEPTH:
 309       case __DRI_BUFFER_DEPTH_STENCIL:
 310       case __DRI_BUFFER_STENCIL:
 311             bind = PIPE_BIND_DEPTH_STENCIL; /* XXX sampler? */
 312          break;
 313    }
 314
 315    /* because we get the handle and stride */
 316    bind |= PIPE_BIND_SHARED;
 317
 318    switch (format) {
 319       case 64:
 320          pf = PIPE_FORMAT_R16G16B16A16_FLOAT;
 321          break;
 322       case 48:
 323          pf = PIPE_FORMAT_R16G16B16X16_FLOAT;
 324          break;
 325       case 32:
 326          pf = PIPE_FORMAT_BGRA8888_UNORM;
 327          break;
 328       case 30:
 329          pf = PIPE_FORMAT_B10G10R10X2_UNORM;
 330          break;
 331       case 24:
 332          pf = PIPE_FORMAT_BGRX8888_UNORM;
 333          break;
 334       case 16:
 335          pf = PIPE_FORMAT_Z16_UNORM;
 336          break;
 337       default:
 338          return NULL;
 339    }
 340
 341    buffer = CALLOC_STRUCT(dri2_buffer);
 342    if (!buffer)
 343       return NULL;
 344
 345    memset(&templ, 0, sizeof(templ));
 346    templ.bind = bind;
 347    templ.format = pf;
 348    templ.target = PIPE_TEXTURE_2D;
 349    templ.last_level = 0;
 350    templ.width0 = width;
 351    templ.height0 = height;
 352    templ.depth0 = 1;
 353    templ.array_size = 1;
 354
 355    buffer->resource =
 356       screen->base.screen->resource_create(screen->base.screen, &templ);
 357    if (!buffer->resource) {
 358       FREE(buffer);
 359       return NULL;
 360    }
 361
 362    memset(&whandle, 0, sizeof(whandle));
 363    if (screen->can_share_buffer)
 364       whandle.type = WINSYS_HANDLE_TYPE_SHARED;
 365    else
 366       whandle.type = WINSYS_HANDLE_TYPE_KMS;
 367
 368    screen->base.screen->resource_get_handle(screen->base.screen, NULL,
 369          buffer->resource, &whandle,
 370          PIPE_HANDLE_USAGE_EXPLICIT_FLUSH);
 371
 372    buffer->base.attachment = attachment;
 373    buffer->base.name = whandle.handle;
 374    buffer->base.cpp = util_format_get_blocksize(pf);
 375    buffer->base.pitch = whandle.stride;
 376
 377    return &buffer->base;
 378 }
 379
 380 static void
 381 dri2_release_buffer(__DRIscreen *sPriv, __DRIbuffer *bPriv)
 382 {
 383    struct dri2_buffer *buffer = dri2_buffer(bPriv);
 384
 385    pipe_resource_reference(&buffer->resource, NULL);
 386    FREE(buffer);
 387 }
 388
 389 /*
 390  * Backend functions for st_framebuffer interface.
 391  */
 392
 393 static void
 394 dri2_allocate_textures(struct dri_context *ctx,
 395                        struct dri_drawable *drawable,
 396                        const enum st_attachment_type *statts,
 397                        unsigned statts_count)
 398 {
 399    __DRIscreen *sPriv = drawable->sPriv;
 400    __DRIdrawable *dri_drawable = drawable->dPriv;
 401    struct dri_screen *screen = dri_screen(sPriv);
 402    struct pipe_resource templ;
 403    boolean alloc_depthstencil = FALSE;
 404    unsigned i, j, bind;
 405    const __DRIimageLoaderExtension *image = sPriv->image.loader;
 406    /* Image specific variables */
 407    struct __DRIimageList images;
 408    /* Dri2 specific variables */
 409    __DRIbuffer *buffers = NULL;
 410    struct winsys_handle whandle;
 411    unsigned num_buffers = statts_count;
 412
 413    /* First get the buffers from the loader */
 414    if (image) {
 415       if (!dri_image_drawable_get_buffers(drawable, &images,
 416                                           statts, statts_count))
 417          return;
 418    }
 419    else {
 420       buffers = dri2_drawable_get_buffers(drawable, statts, &num_buffers);
 421       if (!buffers || (drawable->old_num == num_buffers &&
 422                        drawable->old_w == dri_drawable->w &&
 423                        drawable->old_h == dri_drawable->h &&
 424                        memcmp(drawable->old, buffers,
 425                               sizeof(__DRIbuffer) * num_buffers) == 0))
 426          return;
 427    }
 428
 429    /* Second clean useless resources*/
 430
 431    /* See if we need a depth-stencil buffer. */
 432    for (i = 0; i < statts_count; i++) {
 433       if (statts[i] == ST_ATTACHMENT_DEPTH_STENCIL) {
 434          alloc_depthstencil = TRUE;
 435          break;
 436       }
 437    }
 438
 439    /* Delete the resources we won't need. */
 440    for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
 441       /* Don't delete the depth-stencil buffer, we can reuse it. */
 442       if (i == ST_ATTACHMENT_DEPTH_STENCIL && alloc_depthstencil)
 443          continue;
 444
 445       /* Flush the texture before unreferencing, so that other clients can
 446        * see what the driver has rendered.
 447        */
 448       if (i != ST_ATTACHMENT_DEPTH_STENCIL && drawable->textures[i]) {
 449          struct pipe_context *pipe = ctx->st->pipe;
 450          pipe->flush_resource(pipe, drawable->textures[i]);
 451       }
 452
 453       pipe_resource_reference(&drawable->textures[i], NULL);
 454    }
 455
 456    if (drawable->stvis.samples > 1) {
 457       for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
 458          boolean del = TRUE;
 459
 460          /* Don't delete MSAA resources for the attachments which are enabled,
 461           * we can reuse them. */
 462          for (j = 0; j < statts_count; j++) {
 463             if (i == statts[j]) {
 464                del = FALSE;
 465                break;
 466             }
 467          }
 468
 469          if (del) {
 470             pipe_resource_reference(&drawable->msaa_textures[i], NULL);
 471          }
 472       }
 473    }
 474
 475    /* Third use the buffers retrieved to fill the drawable info */
 476
 477    memset(&templ, 0, sizeof(templ));
 478    templ.target = screen->target;
 479    templ.last_level = 0;
 480    templ.depth0 = 1;
 481    templ.array_size = 1;
 482
 483    if (image) {
 484       if (images.image_mask & __DRI_IMAGE_BUFFER_FRONT) {
 485          struct pipe_resource **buf =
 486             &drawable->textures[ST_ATTACHMENT_FRONT_LEFT];
 487          struct pipe_resource *texture = images.front->texture;
 488
 489          dri_drawable->w = texture->width0;
 490          dri_drawable->h = texture->height0;
 491
 492          pipe_resource_reference(buf, texture);
 493       }
 494
 495       if (images.image_mask & __DRI_IMAGE_BUFFER_BACK) {
 496          struct pipe_resource **buf =
 497             &drawable->textures[ST_ATTACHMENT_BACK_LEFT];
 498          struct pipe_resource *texture = images.back->texture;
 499
 500          dri_drawable->w = texture->width0;
 501          dri_drawable->h = texture->height0;
 502
 503          pipe_resource_reference(buf, texture);
 504       }
 505
 506       /* Note: if there is both a back and a front buffer,
 507        * then they have the same size.
 508        */
 509       templ.width0 = dri_drawable->w;
 510       templ.height0 = dri_drawable->h;
 511    }
 512    else {
 513       memset(&whandle, 0, sizeof(whandle));
 514
 515       /* Process DRI-provided buffers and get pipe_resources. */
 516       for (i = 0; i < num_buffers; i++) {
 517          __DRIbuffer *buf = &buffers[i];
 518          enum st_attachment_type statt;
 519          enum pipe_format format;
 520
 521          switch (buf->attachment) {
 522          case __DRI_BUFFER_FRONT_LEFT:
 523             if (!screen->auto_fake_front) {
 524                continue; /* invalid attachment */
 525             }
 526             /* fallthrough */
 527          case __DRI_BUFFER_FAKE_FRONT_LEFT:
 528             statt = ST_ATTACHMENT_FRONT_LEFT;
 529             break;
 530          case __DRI_BUFFER_BACK_LEFT:
 531             statt = ST_ATTACHMENT_BACK_LEFT;
 532             break;
 533          default:
 534             continue; /* invalid attachment */
 535          }
 536
 537          dri_drawable_get_format(drawable, statt, &format, &bind);
 538          if (format == PIPE_FORMAT_NONE)
 539             continue;
 540
 541          /* dri2_drawable_get_buffers has already filled dri_drawable->w
 542           * and dri_drawable->h */
 543          templ.width0 = dri_drawable->w;
 544          templ.height0 = dri_drawable->h;
 545          templ.format = format;
 546          templ.bind = bind;
 547          whandle.handle = buf->name;
 548          whandle.stride = buf->pitch;
 549          whandle.offset = 0;
 550          whandle.format = format;
 551          whandle.modifier = DRM_FORMAT_MOD_INVALID;
 552          if (screen->can_share_buffer)
 553             whandle.type = WINSYS_HANDLE_TYPE_SHARED;
 554          else
 555             whandle.type = WINSYS_HANDLE_TYPE_KMS;
 556          drawable->textures[statt] =
 557             screen->base.screen->resource_from_handle(screen->base.screen,
 558                   &templ, &whandle,
 559                   PIPE_HANDLE_USAGE_EXPLICIT_FLUSH);
 560          assert(drawable->textures[statt]);
 561       }
 562    }
 563
 564    /* Allocate private MSAA colorbuffers. */
 565    if (drawable->stvis.samples > 1) {
 566       for (i = 0; i < statts_count; i++) {
 567          enum st_attachment_type statt = statts[i];
 568
 569          if (statt == ST_ATTACHMENT_DEPTH_STENCIL)
 570             continue;
 571
 572          if (drawable->textures[statt]) {
 573             templ.format = drawable->textures[statt]->format;
 574             templ.bind = drawable->textures[statt]->bind &
 575                          ~(PIPE_BIND_SCANOUT | PIPE_BIND_SHARED);
 576             templ.nr_samples = drawable->stvis.samples;
 577             templ.nr_storage_samples = drawable->stvis.samples;
 578
 579             /* Try to reuse the resource.
 580              * (the other resource parameters should be constant)
 581              */
 582             if (!drawable->msaa_textures[statt] ||
 583                 drawable->msaa_textures[statt]->width0 != templ.width0 ||
 584                 drawable->msaa_textures[statt]->height0 != templ.height0) {
 585                /* Allocate a new one. */
 586                pipe_resource_reference(&drawable->msaa_textures[statt], NULL);
 587
 588                drawable->msaa_textures[statt] =
 589                   screen->base.screen->resource_create(screen->base.screen,
 590                                                        &templ);
 591                assert(drawable->msaa_textures[statt]);
 592
 593                /* If there are any MSAA resources, we should initialize them
 594                 * such that they contain the same data as the single-sample
 595                 * resources we just got from the X server.
 596                 *
 597                 * The reason for this is that the state tracker (and
 598                 * therefore the app) can access the MSAA resources only.
 599                 * The single-sample resources are not exposed
 600                 * to the state tracker.
 601                 *
 602                 */
 603                dri_pipe_blit(ctx->st->pipe,
 604                              drawable->msaa_textures[statt],
 605                              drawable->textures[statt]);
 606             }
 607          }
 608          else {
 609             pipe_resource_reference(&drawable->msaa_textures[statt], NULL);
 610          }
 611       }
 612    }
 613
 614    /* Allocate a private depth-stencil buffer. */
 615    if (alloc_depthstencil) {
 616       enum st_attachment_type statt = ST_ATTACHMENT_DEPTH_STENCIL;
 617       struct pipe_resource **zsbuf;
 618       enum pipe_format format;
 619       unsigned bind;
 620
 621       dri_drawable_get_format(drawable, statt, &format, &bind);
 622
 623       if (format) {
 624          templ.format = format;
 625          templ.bind = bind & ~PIPE_BIND_SHARED;
 626
 627          if (drawable->stvis.samples > 1) {
 628             templ.nr_samples = drawable->stvis.samples;
 629             templ.nr_storage_samples = drawable->stvis.samples;
 630             zsbuf = &drawable->msaa_textures[statt];
 631          }
 632          else {
 633             templ.nr_samples = 0;
 634             templ.nr_storage_samples = 0;
 635             zsbuf = &drawable->textures[statt];
 636          }
 637
 638          /* Try to reuse the resource.
 639           * (the other resource parameters should be constant)
 640           */
 641          if (!*zsbuf ||
 642              (*zsbuf)->width0 != templ.width0 ||
 643              (*zsbuf)->height0 != templ.height0) {
 644             /* Allocate a new one. */
 645             pipe_resource_reference(zsbuf, NULL);
 646             *zsbuf = screen->base.screen->resource_create(screen->base.screen,
 647                                                           &templ);
 648             assert(*zsbuf);
 649          }
 650       }
 651       else {
 652          pipe_resource_reference(&drawable->msaa_textures[statt], NULL);
 653          pipe_resource_reference(&drawable->textures[statt], NULL);
 654       }
 655    }
 656
 657    /* For DRI2, we may get the same buffers again from the server.
 658     * To prevent useless imports of gem names, drawable->old* is used
 659     * to bypass the import if we get the same buffers. This doesn't apply
 660     * to DRI3/Wayland, users of image.loader, since the buffer is managed
 661     * by the client (no import), and the back buffer is going to change
 662     * at every redraw.
 663     */
 664    if (!image) {
 665       drawable->old_num = num_buffers;
 666       drawable->old_w = dri_drawable->w;
 667       drawable->old_h = dri_drawable->h;
 668       memcpy(drawable->old, buffers, sizeof(__DRIbuffer) * num_buffers);
 669    }
 670 }
 671
 672 static void
 673 dri2_flush_frontbuffer(struct dri_context *ctx,
 674                        struct dri_drawable *drawable,
 675                        enum st_attachment_type statt)
 676 {
 677    __DRIdrawable *dri_drawable = drawable->dPriv;
 678    const __DRIimageLoaderExtension *image = drawable->sPriv->image.loader;
 679    const __DRIdri2LoaderExtension *loader = drawable->sPriv->dri2.loader;
 680    struct pipe_context *pipe = ctx->st->pipe;
 681
 682    if (statt != ST_ATTACHMENT_FRONT_LEFT)
 683       return;
 684
 685    if (drawable->stvis.samples > 1) {
 686       /* Resolve the front buffer. */
 687       dri_pipe_blit(ctx->st->pipe,
 688                     drawable->textures[ST_ATTACHMENT_FRONT_LEFT],
 689                     drawable->msaa_textures[ST_ATTACHMENT_FRONT_LEFT]);
 690    }
 691
 692    if (drawable->textures[ST_ATTACHMENT_FRONT_LEFT]) {
 693       pipe->flush_resource(pipe, drawable->textures[ST_ATTACHMENT_FRONT_LEFT]);
 694    }
 695
 696    pipe->flush(pipe, NULL, 0);
 697
 698    if (image) {
 699       image->flushFrontBuffer(dri_drawable, dri_drawable->loaderPrivate);
 700    }
 701    else if (loader->flushFrontBuffer) {
 702       loader->flushFrontBuffer(dri_drawable, dri_drawable->loaderPrivate);
 703    }
 704 }
 705
 706 /**
 707  * The struct dri_drawable flush_swapbuffers callback
 708  */
 709 static void
 710 dri2_flush_swapbuffers(struct dri_context *ctx,
 711                        struct dri_drawable *drawable)
 712 {
 713    __DRIdrawable *dri_drawable = drawable->dPriv;
 714    const __DRIimageLoaderExtension *image = drawable->sPriv->image.loader;
 715
 716    if (image && image->base.version >= 3 && image->flushSwapBuffers) {
 717       image->flushSwapBuffers(dri_drawable, dri_drawable->loaderPrivate);
 718    }
 719 }
 720
 721 static void
 722 dri2_update_tex_buffer(struct dri_drawable *drawable,
 723                        struct dri_context *ctx,
 724                        struct pipe_resource *res)
 725 {
 726    /* no-op */
 727 }
 728
 729 static __DRIimage *
 730 dri2_create_image_from_winsys(__DRIscreen *_screen,
 731                               int width, int height, const struct dri2_format_mapping *map,
 732                               int num_handles, struct winsys_handle *whandle,
 733                               void *loaderPrivate)
 734 {
 735    struct dri_screen *screen = dri_screen(_screen);
 736    struct pipe_screen *pscreen = screen->base.screen;
 737    __DRIimage *img;
 738    struct pipe_resource templ;
 739    unsigned tex_usage = 0;
 740    int i;
 741    bool use_lowered = false;
 742
 743    if (pscreen->is_format_supported(pscreen, map->pipe_format, screen->target, 0, 0,
 744                                     PIPE_BIND_RENDER_TARGET))
 745       tex_usage |= PIPE_BIND_RENDER_TARGET;
 746    if (pscreen->is_format_supported(pscreen, map->pipe_format, screen->target, 0, 0,
 747                                     PIPE_BIND_SAMPLER_VIEW))
 748       tex_usage |= PIPE_BIND_SAMPLER_VIEW;
 749
 750    if (!tex_usage && util_format_is_yuv(map->pipe_format)) {
 751       /* YUV format sampling can be emulated by the Mesa state tracker by
 752        * using multiple samplers of varying formats.
 753        * If no tex_usage is set and we detect a YUV format,
 754        * test for support of the first plane's sampler format and
 755        * add sampler view usage.
 756        */
 757       use_lowered = true;
 758       if (pscreen->is_format_supported(pscreen,
 759                                        dri2_get_pipe_format_for_dri_format(map->planes[0].dri_format),
 760                                        screen->target, 0, 0,
 761                                        PIPE_BIND_SAMPLER_VIEW))
 762          tex_usage |= PIPE_BIND_SAMPLER_VIEW;
 763    }
 764
 765    if (!tex_usage)
 766       return NULL;
 767
 768    img = CALLOC_STRUCT(__DRIimageRec);
 769    if (!img)
 770       return NULL;
 771
 772    memset(&templ, 0, sizeof(templ));
 773    templ.bind = tex_usage;
 774    templ.target = screen->target;
 775    templ.last_level = 0;
 776    templ.depth0 = 1;
 777    templ.array_size = 1;
 778
 779    for (i = (use_lowered ? map->nplanes : num_handles) - 1; i >= 0; i--) {
 780       struct pipe_resource *tex;
 781
 782       templ.width0 = width >> map->planes[i].width_shift;
 783       templ.height0 = height >> map->planes[i].height_shift;
 784       if (use_lowered)
 785          templ.format = dri2_get_pipe_format_for_dri_format(map->planes[i].dri_format);
 786       else
 787          templ.format = map->pipe_format;
 788       assert(templ.format != PIPE_FORMAT_NONE);
 789
 790       tex = pscreen->resource_from_handle(pscreen,
 791                &templ, &whandle[use_lowered ? map->planes[i].buffer_index : i],
 792                PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE);
 793       if (!tex) {
 794          pipe_resource_reference(&img->texture, NULL);
 795          FREE(img);
 796          return NULL;
 797       }
 798
 799       tex->next = img->texture;
 800       img->texture = tex;
 801    }
 802
 803    img->level = 0;
 804    img->layer = 0;
 805    img->use = 0;
 806    img->loader_private = loaderPrivate;
 807
 808    return img;
 809 }
 810
 811 static __DRIimage *
 812 dri2_create_image_from_name(__DRIscreen *_screen,
 813                             int width, int height, int format,
 814                             int name, int pitch, void *loaderPrivate)
 815 {
 816    const struct dri2_format_mapping *map = dri2_get_mapping_by_format(format);
 817    struct winsys_handle whandle;
 818    __DRIimage *img;
 819
 820    if (!map)
 821       return NULL;
 822
 823    memset(&whandle, 0, sizeof(whandle));
 824    whandle.type = WINSYS_HANDLE_TYPE_SHARED;
 825    whandle.handle = name;
 826    whandle.format = map->pipe_format;
 827    whandle.modifier = DRM_FORMAT_MOD_INVALID;
 828
 829    whandle.stride = pitch * util_format_get_blocksize(map->pipe_format);
 830
 831    img = dri2_create_image_from_winsys(_screen, width, height, map,
 832                                        1, &whandle, loaderPrivate);
 833
 834    if (!img)
 835       return NULL;
 836
 837    img->dri_components = map->dri_components;
 838    img->dri_fourcc = map->dri_fourcc;
 839    img->dri_format = map->dri_format;
 840
 841    return img;
 842 }
 843
 844 static unsigned
 845 dri2_get_modifier_num_planes(uint64_t modifier, int fourcc)
 846 {
 847    const struct dri2_format_mapping *map = dri2_get_mapping_by_fourcc(fourcc);
 848
 849    if (!map)
 850       return 0;
 851
 852    switch (modifier) {
 853    case I915_FORMAT_MOD_Y_TILED_CCS:
 854       return 2;
 855    case DRM_FORMAT_MOD_BROADCOM_UIF:
 856    case DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED:
 857    case DRM_FORMAT_MOD_LINEAR:
 858    /* DRM_FORMAT_MOD_NONE is the same as LINEAR */
 859    case DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_EIGHT_GOB:
 860    case DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_FOUR_GOB:
 861    case DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_ONE_GOB:
 862    case DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_SIXTEEN_GOB:
 863    case DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_THIRTYTWO_GOB:
 864    case DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_TWO_GOB:
 865    case DRM_FORMAT_MOD_QCOM_COMPRESSED:
 866    case DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED:
 867    case DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED:
 868    case DRM_FORMAT_MOD_VIVANTE_SUPER_TILED:
 869    case DRM_FORMAT_MOD_VIVANTE_TILED:
 870    /* FD_FORMAT_MOD_QCOM_TILED is not in drm_fourcc.h */
 871    case I915_FORMAT_MOD_X_TILED:
 872    case I915_FORMAT_MOD_Y_TILED:
 873    case DRM_FORMAT_MOD_INVALID:
 874       return map->nplanes;
 875    default:
 876       return 0;
 877    }
 878 }
 879
 880 static __DRIimage *
 881 dri2_create_image_from_fd(__DRIscreen *_screen,
 882                           int width, int height, int fourcc,
 883                           uint64_t modifier, int *fds, int num_fds,
 884                           int *strides, int *offsets, unsigned *error,
 885                           void *loaderPrivate)
 886 {
 887    struct winsys_handle whandles[3];
 888    const struct dri2_format_mapping *map = dri2_get_mapping_by_fourcc(fourcc);
 889    __DRIimage *img = NULL;
 890    unsigned err = __DRI_IMAGE_ERROR_SUCCESS;
 891    int i, expected_num_fds;
 892    int num_handles = dri2_get_modifier_num_planes(modifier, fourcc);
 893
 894    if (!map || num_handles == 0) {
 895       err = __DRI_IMAGE_ERROR_BAD_MATCH;
 896       goto exit;
 897    }
 898
 899    switch (fourcc) {
 900    case DRM_FORMAT_YUYV:
 901    case DRM_FORMAT_UYVY:
 902       expected_num_fds = 1;
 903       break;
 904    default:
 905       expected_num_fds = num_handles;
 906       break;
 907    }
 908
 909    if (num_fds != expected_num_fds) {
 910       err = __DRI_IMAGE_ERROR_BAD_MATCH;
 911       goto exit;
 912    }
 913
 914    memset(whandles, 0, sizeof(whandles));
 915
 916    for (i = 0; i < num_fds; i++) {
 917       if (fds[i] < 0) {
 918          err = __DRI_IMAGE_ERROR_BAD_ALLOC;
 919          goto exit;
 920       }
 921
 922       whandles[i].type = WINSYS_HANDLE_TYPE_FD;
 923       whandles[i].handle = (unsigned)fds[i];
 924       whandles[i].stride = (unsigned)strides[i];
 925       whandles[i].offset = (unsigned)offsets[i];
 926       whandles[i].format = map->pipe_format;
 927       whandles[i].modifier = modifier;
 928       whandles[i].plane = i;
 929    }
 930
 931    img = dri2_create_image_from_winsys(_screen, width, height, map,
 932                                        num_fds, whandles, loaderPrivate);
 933    if(img == NULL) {
 934       err = __DRI_IMAGE_ERROR_BAD_ALLOC;
 935       goto exit;
 936    }
 937
 938    img->dri_components = map->dri_components;
 939    img->dri_fourcc = fourcc;
 940    img->dri_format = map->dri_format;
 941    img->imported_dmabuf = TRUE;
 942
 943 exit:
 944    if (error)
 945       *error = err;
 946
 947    return img;
 948 }
 949
 950 static __DRIimage *
 951 dri2_create_image_common(__DRIscreen *_screen,
 952                          int width, int height,
 953                          int format, unsigned int use,
 954                          const uint64_t *modifiers,
 955                          const unsigned count,
 956                          void *loaderPrivate)
 957 {
 958    const struct dri2_format_mapping *map = dri2_get_mapping_by_format(format);
 959    struct dri_screen *screen = dri_screen(_screen);
 960    __DRIimage *img;
 961    struct pipe_resource templ;
 962    unsigned tex_usage;
 963
 964    if (!map)
 965       return NULL;
 966
 967    tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 968
 969    if (use & __DRI_IMAGE_USE_SCANOUT)
 970       tex_usage |= PIPE_BIND_SCANOUT;
 971    if (use & __DRI_IMAGE_USE_SHARE)
 972       tex_usage |= PIPE_BIND_SHARED;
 973    if (use & __DRI_IMAGE_USE_LINEAR)
 974       tex_usage |= PIPE_BIND_LINEAR;
 975    if (use & __DRI_IMAGE_USE_CURSOR) {
 976       if (width != 64 || height != 64)
 977          return NULL;
 978       tex_usage |= PIPE_BIND_CURSOR;
 979    }
 980
 981    img = CALLOC_STRUCT(__DRIimageRec);
 982    if (!img)
 983       return NULL;
 984
 985    memset(&templ, 0, sizeof(templ));
 986    templ.bind = tex_usage;
 987    templ.format = map->pipe_format;
 988    templ.target = PIPE_TEXTURE_2D;
 989    templ.last_level = 0;
 990    templ.width0 = width;
 991    templ.height0 = height;
 992    templ.depth0 = 1;
 993    templ.array_size = 1;
 994
 995    if (modifiers)
 996       img->texture =
 997          screen->base.screen
 998             ->resource_create_with_modifiers(screen->base.screen,
 999                                              &templ,
1000                                              modifiers,
1001                                              count);
1002    else
1003       img->texture =
1004          screen->base.screen->resource_create(screen->base.screen, &templ);
1005    if (!img->texture) {
1006       FREE(img);
1007       return NULL;
1008    }
1009
1010    img->level = 0;
1011    img->layer = 0;
1012    img->dri_format = format;
1013    img->dri_fourcc = map->dri_fourcc;
1014    img->dri_components = 0;
1015    img->use = use;
1016
1017    img->loader_private = loaderPrivate;
1018    return img;
1019 }
1020
1021 static __DRIimage *
1022 dri2_create_image(__DRIscreen *_screen,
1023                    int width, int height, int format,
1024                    unsigned int use, void *loaderPrivate)
1025 {
1026    return dri2_create_image_common(_screen, width, height, format, use,
1027                                    NULL /* modifiers */, 0 /* count */,
1028                                    loaderPrivate);
1029 }
1030
1031 static __DRIimage *
1032 dri2_create_image_with_modifiers(__DRIscreen *dri_screen,
1033                                  int width, int height, int format,
1034                                  const uint64_t *modifiers,
1035                                  const unsigned count,
1036                                  void *loaderPrivate)
1037 {
1038    return dri2_create_image_common(dri_screen, width, height, format,
1039                                    __DRI_IMAGE_USE_SHARE, modifiers, count,
1040                                    loaderPrivate);
1041 }
1042
1043 static bool
1044 dri2_query_image_common(__DRIimage *image, int attrib, int *value)
1045 {
1046    switch (attrib) {
1047    case __DRI_IMAGE_ATTRIB_FORMAT:
1048       *value = image->dri_format;
1049       return true;
1050    case __DRI_IMAGE_ATTRIB_WIDTH:
1051       *value = image->texture->width0;
1052       return true;
1053    case __DRI_IMAGE_ATTRIB_HEIGHT:
1054       *value = image->texture->height0;
1055       return true;
1056    case __DRI_IMAGE_ATTRIB_COMPONENTS:
1057       if (image->dri_components == 0)
1058          return false;
1059       *value = image->dri_components;
1060       return true;
1061    case __DRI_IMAGE_ATTRIB_FOURCC:
1062       if (image->dri_fourcc) {
1063          *value = image->dri_fourcc;
1064       } else {
1065          const struct dri2_format_mapping *map;
1066
1067          map = dri2_get_mapping_by_format(image->dri_format);
1068          if (!map)
1069             return false;
1070
1071          *value = map->dri_fourcc;
1072       }
1073       return true;
1074    default:
1075       return false;
1076    }
1077 }
1078
1079 static bool
1080 dri2_query_image_by_resource_handle(__DRIimage *image, int attrib, int *value)
1081 {
1082    struct pipe_screen *pscreen = image->texture->screen;
1083    struct winsys_handle whandle;
1084    unsigned usage;
1085    memset(&whandle, 0, sizeof(whandle));
1086    whandle.plane = image->plane;
1087
1088    switch (attrib) {
1089    case __DRI_IMAGE_ATTRIB_STRIDE:
1090    case __DRI_IMAGE_ATTRIB_OFFSET:
1091    case __DRI_IMAGE_ATTRIB_HANDLE:
1092       whandle.type = WINSYS_HANDLE_TYPE_KMS;
1093       break;
1094    case __DRI_IMAGE_ATTRIB_NAME:
1095       whandle.type = WINSYS_HANDLE_TYPE_SHARED;
1096       break;
1097    case __DRI_IMAGE_ATTRIB_FD:
1098       whandle.type = WINSYS_HANDLE_TYPE_FD;
1099       break;
1100    case __DRI_IMAGE_ATTRIB_NUM_PLANES:
1101       *value = 1;
1102       return true;
1103    case __DRI_IMAGE_ATTRIB_MODIFIER_UPPER:
1104    case __DRI_IMAGE_ATTRIB_MODIFIER_LOWER:
1105       whandle.type = WINSYS_HANDLE_TYPE_KMS;
1106       whandle.modifier = DRM_FORMAT_MOD_INVALID;
1107       break;
1108    default:
1109       return false;
1110    }
1111
1112    usage = PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE;
1113
1114    if (image->use & __DRI_IMAGE_USE_BACKBUFFER)
1115       usage |= PIPE_HANDLE_USAGE_EXPLICIT_FLUSH;
1116
1117    if (!pscreen->resource_get_handle(pscreen, NULL, image->texture,
1118                                      &whandle, usage))
1119       return false;
1120
1121    switch (attrib) {
1122    case __DRI_IMAGE_ATTRIB_STRIDE:
1123       *value = whandle.stride;
1124       return true;
1125    case __DRI_IMAGE_ATTRIB_OFFSET:
1126       *value = whandle.offset;
1127       return true;
1128    case __DRI_IMAGE_ATTRIB_HANDLE:
1129    case __DRI_IMAGE_ATTRIB_NAME:
1130    case __DRI_IMAGE_ATTRIB_FD:
1131       *value = whandle.handle;
1132       return true;
1133    case __DRI_IMAGE_ATTRIB_MODIFIER_UPPER:
1134       if (whandle.modifier == DRM_FORMAT_MOD_INVALID)
1135          return false;
1136       *value = (whandle.modifier >> 32) & 0xffffffff;
1137       return true;
1138    case __DRI_IMAGE_ATTRIB_MODIFIER_LOWER:
1139       if (whandle.modifier == DRM_FORMAT_MOD_INVALID)
1140          return false;
1141       *value = whandle.modifier & 0xffffffff;
1142       return true;
1143    default:
1144       return false;
1145    }
1146 }
1147
1148 static bool
1149 dri2_resource_get_param(__DRIimage *image, enum pipe_resource_param param,
1150                         unsigned handle_usage, uint64_t *value)
1151 {
1152    struct pipe_screen *pscreen = image->texture->screen;
1153    if (!pscreen->resource_get_param)
1154       return false;
1155
1156    return pscreen->resource_get_param(pscreen, NULL, image->texture,
1157                                       image->plane, 0, param, handle_usage,
1158                                       value);
1159 }
1160
1161 static bool
1162 dri2_query_image_by_resource_param(__DRIimage *image, int attrib, int *value)
1163 {
1164    enum pipe_resource_param param;
1165    uint64_t res_param;
1166    unsigned handle_usage;
1167
1168    if (!image->texture->screen->resource_get_param)
1169       return false;
1170
1171    switch (attrib) {
1172    case __DRI_IMAGE_ATTRIB_STRIDE:
1173       param = PIPE_RESOURCE_PARAM_STRIDE;
1174       break;
1175    case __DRI_IMAGE_ATTRIB_OFFSET:
1176       param = PIPE_RESOURCE_PARAM_OFFSET;
1177       break;
1178    case __DRI_IMAGE_ATTRIB_NUM_PLANES:
1179       param = PIPE_RESOURCE_PARAM_NPLANES;
1180       break;
1181    case __DRI_IMAGE_ATTRIB_MODIFIER_UPPER:
1182    case __DRI_IMAGE_ATTRIB_MODIFIER_LOWER:
1183       param = PIPE_RESOURCE_PARAM_MODIFIER;
1184       break;
1185    case __DRI_IMAGE_ATTRIB_HANDLE:
1186       param = PIPE_RESOURCE_PARAM_HANDLE_TYPE_KMS;
1187       break;
1188    case __DRI_IMAGE_ATTRIB_NAME:
1189       param = PIPE_RESOURCE_PARAM_HANDLE_TYPE_SHARED;
1190       break;
1191    case __DRI_IMAGE_ATTRIB_FD:
1192       param = PIPE_RESOURCE_PARAM_HANDLE_TYPE_FD;
1193       break;
1194    default:
1195       return false;
1196    }
1197
1198    handle_usage = PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE;
1199
1200    if (image->use & __DRI_IMAGE_USE_BACKBUFFER)
1201       handle_usage |= PIPE_HANDLE_USAGE_EXPLICIT_FLUSH;
1202
1203    if (!dri2_resource_get_param(image, param, handle_usage, &res_param))
1204       return false;
1205
1206    switch (attrib) {
1207    case __DRI_IMAGE_ATTRIB_STRIDE:
1208    case __DRI_IMAGE_ATTRIB_OFFSET:
1209    case __DRI_IMAGE_ATTRIB_NUM_PLANES:
1210       if (res_param > INT_MAX)
1211          return false;
1212       *value = (int)res_param;
1213       return true;
1214    case __DRI_IMAGE_ATTRIB_HANDLE:
1215    case __DRI_IMAGE_ATTRIB_NAME:
1216    case __DRI_IMAGE_ATTRIB_FD:
1217       if (res_param > UINT_MAX)
1218          return false;
1219       *value = (int)res_param;
1220       return true;
1221    case __DRI_IMAGE_ATTRIB_MODIFIER_UPPER:
1222       if (res_param == DRM_FORMAT_MOD_INVALID)
1223          return false;
1224       *value = (res_param >> 32) & 0xffffffff;
1225       return true;
1226    case __DRI_IMAGE_ATTRIB_MODIFIER_LOWER:
1227       if (res_param == DRM_FORMAT_MOD_INVALID)
1228          return false;
1229       *value = res_param & 0xffffffff;
1230       return true;
1231    default:
1232       return false;
1233    }
1234 }
1235
1236 static GLboolean
1237 dri2_query_image(__DRIimage *image, int attrib, int *value)
1238 {
1239    if (dri2_query_image_common(image, attrib, value))
1240       return GL_TRUE;
1241    else if (dri2_query_image_by_resource_param(image, attrib, value))
1242       return GL_TRUE;
1243    else if (dri2_query_image_by_resource_handle(image, attrib, value))
1244       return GL_TRUE;
1245    else
1246       return GL_FALSE;
1247 }
1248
1249 static __DRIimage *
1250 dri2_dup_image(__DRIimage *image, void *loaderPrivate)
1251 {
1252    __DRIimage *img;
1253
1254    img = CALLOC_STRUCT(__DRIimageRec);
1255    if (!img)
1256       return NULL;
1257
1258    img->texture = NULL;
1259    pipe_resource_reference(&img->texture, image->texture);
1260    img->level = image->level;
1261    img->layer = image->layer;
1262    img->dri_format = image->dri_format;
1263    /* This should be 0 for sub images, but dup is also used for base images. */
1264    img->dri_components = image->dri_components;
1265    img->loader_private = loaderPrivate;
1266
1267    return img;
1268 }
1269
1270 static GLboolean
1271 dri2_validate_usage(__DRIimage *image, unsigned int use)
1272 {
1273    if (!image || !image->texture)
1274       return false;
1275
1276    struct pipe_screen *screen = image->texture->screen;
1277    if (!screen->check_resource_capability)
1278       return true;
1279
1280    /* We don't want to check these:
1281     *   __DRI_IMAGE_USE_SHARE (all images are shareable)
1282     *   __DRI_IMAGE_USE_BACKBUFFER (all images support this)
1283     */
1284    unsigned bind = 0;
1285    if (use & __DRI_IMAGE_USE_SCANOUT)
1286       bind |= PIPE_BIND_SCANOUT;
1287    if (use & __DRI_IMAGE_USE_LINEAR)
1288       bind |= PIPE_BIND_LINEAR;
1289    if (use & __DRI_IMAGE_USE_CURSOR)
1290       bind |= PIPE_BIND_CURSOR;
1291
1292    if (!bind)
1293       return true;
1294
1295    return screen->check_resource_capability(screen, image->texture, bind);
1296 }
1297
1298 static __DRIimage *
1299 dri2_from_names(__DRIscreen *screen, int width, int height, int format,
1300                 int *names, int num_names, int *strides, int *offsets,
1301                 void *loaderPrivate)
1302 {
1303    const struct dri2_format_mapping *map = dri2_get_mapping_by_format(format);
1304    __DRIimage *img;
1305    struct winsys_handle whandle;
1306
1307    if (!map)
1308       return NULL;
1309
1310    if (num_names != 1)
1311       return NULL;
1312
1313    memset(&whandle, 0, sizeof(whandle));
1314    whandle.type = WINSYS_HANDLE_TYPE_SHARED;
1315    whandle.handle = names[0];
1316    whandle.stride = strides[0];
1317    whandle.offset = offsets[0];
1318    whandle.format = map->pipe_format;
1319    whandle.modifier = DRM_FORMAT_MOD_INVALID;
1320
1321    img = dri2_create_image_from_winsys(screen, width, height, map,
1322                                        1, &whandle, loaderPrivate);
1323    if (img == NULL)
1324       return NULL;
1325
1326    img->dri_components = map->dri_components;
1327    img->dri_fourcc = map->dri_fourcc;
1328    img->dri_format = map->pipe_format;
1329
1330    return img;
1331 }
1332
1333 static __DRIimage *
1334 dri2_from_planar(__DRIimage *image, int plane, void *loaderPrivate)
1335 {
1336    __DRIimage *img;
1337
1338    if (plane < 0) {
1339       return NULL;
1340    } else if (plane > 0) {
1341       uint64_t planes;
1342       if (!dri2_resource_get_param(image, PIPE_RESOURCE_PARAM_NPLANES, 0,
1343                                    &planes) ||
1344           plane >= planes) {
1345          return NULL;
1346       }
1347    }
1348
1349    if (image->dri_components == 0) {
1350       uint64_t modifier;
1351       if (!dri2_resource_get_param(image, PIPE_RESOURCE_PARAM_MODIFIER, 0,
1352                                    &modifier) ||
1353           modifier == DRM_FORMAT_MOD_INVALID) {
1354          return NULL;
1355       }
1356    }
1357
1358    img = dri2_dup_image(image, loaderPrivate);
1359    if (img == NULL)
1360       return NULL;
1361
1362    if (img->texture->screen->resource_changed)
1363       img->texture->screen->resource_changed(img->texture->screen,
1364                                              img->texture);
1365
1366    /* set this to 0 for sub images. */
1367    img->dri_components = 0;
1368    img->plane = plane;
1369    return img;
1370 }
1371
1372 static __DRIimage *
1373 dri2_from_fds(__DRIscreen *screen, int width, int height, int fourcc,
1374               int *fds, int num_fds, int *strides, int *offsets,
1375               void *loaderPrivate)
1376 {
1377    return dri2_create_image_from_fd(screen, width, height, fourcc,
1378                                    DRM_FORMAT_MOD_INVALID, fds, num_fds,
1379                                    strides, offsets, NULL, loaderPrivate);
1380 }
1381
1382 static boolean
1383 dri2_query_dma_buf_modifiers(__DRIscreen *_screen, int fourcc, int max,
1384                              uint64_t *modifiers, unsigned int *external_only,
1385                              int *count)
1386 {
1387    struct dri_screen *screen = dri_screen(_screen);
1388    struct pipe_screen *pscreen = screen->base.screen;
1389    const struct dri2_format_mapping *map = dri2_get_mapping_by_fourcc(fourcc);
1390    enum pipe_format format;
1391
1392    if (!map)
1393       return false;
1394
1395    format = map->pipe_format;
1396
1397    if (pscreen->query_dmabuf_modifiers != NULL &&
1398        (pscreen->is_format_supported(pscreen, format, screen->target, 0, 0,
1399                                      PIPE_BIND_RENDER_TARGET) ||
1400         pscreen->is_format_supported(pscreen, format, screen->target, 0, 0,
1401                                      PIPE_BIND_SAMPLER_VIEW))) {
1402       pscreen->query_dmabuf_modifiers(pscreen, format, max, modifiers,
1403                                       external_only, count);
1404       return true;
1405    }
1406    return false;
1407 }
1408
1409 static boolean
1410 dri2_query_dma_buf_format_modifier_attribs(__DRIscreen *_screen,
1411                                            uint32_t fourcc, uint64_t modifier,
1412                                            int attrib, uint64_t *value)
1413 {
1414    switch (attrib) {
1415    case __DRI_IMAGE_FORMAT_MODIFIER_ATTRIB_PLANE_COUNT: {
1416       uint64_t mod_planes = dri2_get_modifier_num_planes(modifier, fourcc);
1417       if (mod_planes > 0)
1418          *value = mod_planes;
1419       return mod_planes > 0;
1420    }
1421    default:
1422       return false;
1423    }
1424 }
1425
1426 static __DRIimage *
1427 dri2_from_dma_bufs(__DRIscreen *screen,
1428                    int width, int height, int fourcc,
1429                    int *fds, int num_fds,
1430                    int *strides, int *offsets,
1431                    enum __DRIYUVColorSpace yuv_color_space,
1432                    enum __DRISampleRange sample_range,
1433                    enum __DRIChromaSiting horizontal_siting,
1434                    enum __DRIChromaSiting vertical_siting,
1435                    unsigned *error,
1436                    void *loaderPrivate)
1437 {
1438    __DRIimage *img;
1439
1440    img = dri2_create_image_from_fd(screen, width, height, fourcc,
1441                                    DRM_FORMAT_MOD_INVALID, fds, num_fds,
1442                                    strides, offsets, error, loaderPrivate);
1443    if (img == NULL)
1444       return NULL;
1445
1446    img->yuv_color_space = yuv_color_space;
1447    img->sample_range = sample_range;
1448    img->horizontal_siting = horizontal_siting;
1449    img->vertical_siting = vertical_siting;
1450
1451    *error = __DRI_IMAGE_ERROR_SUCCESS;
1452    return img;
1453 }
1454
1455 static __DRIimage *
1456 dri2_from_dma_bufs2(__DRIscreen *screen,
1457                     int width, int height, int fourcc,
1458                     uint64_t modifier, int *fds, int num_fds,
1459                     int *strides, int *offsets,
1460                     enum __DRIYUVColorSpace yuv_color_space,
1461                     enum __DRISampleRange sample_range,
1462                     enum __DRIChromaSiting horizontal_siting,
1463                     enum __DRIChromaSiting vertical_siting,
1464                     unsigned *error,
1465                     void *loaderPrivate)
1466 {
1467    __DRIimage *img;
1468
1469    img = dri2_create_image_from_fd(screen, width, height, fourcc,
1470                                    modifier, fds, num_fds, strides, offsets,
1471                                    error, loaderPrivate);
1472    if (img == NULL)
1473       return NULL;
1474
1475    img->yuv_color_space = yuv_color_space;
1476    img->sample_range = sample_range;
1477    img->horizontal_siting = horizontal_siting;
1478    img->vertical_siting = vertical_siting;
1479
1480    *error = __DRI_IMAGE_ERROR_SUCCESS;
1481    return img;
1482 }
1483
1484 static void
1485 dri2_blit_image(__DRIcontext *context, __DRIimage *dst, __DRIimage *src,
1486                 int dstx0, int dsty0, int dstwidth, int dstheight,
1487                 int srcx0, int srcy0, int srcwidth, int srcheight,
1488                 int flush_flag)
1489 {
1490    struct dri_context *ctx = dri_context(context);
1491    struct pipe_context *pipe = ctx->st->pipe;
1492    struct pipe_screen *screen;
1493    struct pipe_fence_handle *fence;
1494    struct pipe_blit_info blit;
1495
1496    if (!dst || !src)
1497       return;
1498
1499    memset(&blit, 0, sizeof(blit));
1500    blit.dst.resource = dst->texture;
1501    blit.dst.box.x = dstx0;
1502    blit.dst.box.y = dsty0;
1503    blit.dst.box.width = dstwidth;
1504    blit.dst.box.height = dstheight;
1505    blit.dst.box.depth = 1;
1506    blit.dst.format = dst->texture->format;
1507    blit.src.resource = src->texture;
1508    blit.src.box.x = srcx0;
1509    blit.src.box.y = srcy0;
1510    blit.src.box.width = srcwidth;
1511    blit.src.box.height = srcheight;
1512    blit.src.box.depth = 1;
1513    blit.src.format = src->texture->format;
1514    blit.mask = PIPE_MASK_RGBA;
1515    blit.filter = PIPE_TEX_FILTER_NEAREST;
1516
1517    pipe->blit(pipe, &blit);
1518
1519    if (flush_flag == __BLIT_FLAG_FLUSH) {
1520       pipe->flush_resource(pipe, dst->texture);
1521       ctx->st->flush(ctx->st, 0, NULL, NULL, NULL);
1522    } else if (flush_flag == __BLIT_FLAG_FINISH) {
1523       screen = dri_screen(ctx->sPriv)->base.screen;
1524       pipe->flush_resource(pipe, dst->texture);
1525       ctx->st->flush(ctx->st, 0, &fence, NULL, NULL);
1526       (void) screen->fence_finish(screen, NULL, fence, PIPE_TIMEOUT_INFINITE);
1527       screen->fence_reference(screen, &fence, NULL);
1528    }
1529 }
1530
1531 static void *
1532 dri2_map_image(__DRIcontext *context, __DRIimage *image,
1533                 int x0, int y0, int width, int height,
1534                 unsigned int flags, int *stride, void **data)
1535 {
1536    struct dri_context *ctx = dri_context(context);
1537    struct pipe_context *pipe = ctx->st->pipe;
1538    enum pipe_transfer_usage pipe_access = 0;
1539    struct pipe_transfer *trans;
1540    void *map;
1541
1542    if (!image || !data || *data)
1543       return NULL;
1544
1545    if (flags & __DRI_IMAGE_TRANSFER_READ)
1546          pipe_access |= PIPE_TRANSFER_READ;
1547    if (flags & __DRI_IMAGE_TRANSFER_WRITE)
1548          pipe_access |= PIPE_TRANSFER_WRITE;
1549
1550    map = pipe_transfer_map(pipe, image->texture,
1551                            0, 0, pipe_access, x0, y0, width, height,
1552                            &trans);
1553    if (map) {
1554       *data = trans;
1555       *stride = trans->stride;
1556    }
1557
1558    return map;
1559 }
1560
1561 static void
1562 dri2_unmap_image(__DRIcontext *context, __DRIimage *image, void *data)
1563 {
1564    struct dri_context *ctx = dri_context(context);
1565    struct pipe_context *pipe = ctx->st->pipe;
1566
1567    pipe_transfer_unmap(pipe, (struct pipe_transfer *)data);
1568 }
1569
1570 static int
1571 dri2_get_capabilities(__DRIscreen *_screen)
1572 {
1573    struct dri_screen *screen = dri_screen(_screen);
1574
1575    return (screen->can_share_buffer ? __DRI_IMAGE_CAP_GLOBAL_NAMES : 0);
1576 }
1577
1578 /* The extension is modified during runtime if DRI_PRIME is detected */
1579 static __DRIimageExtension dri2ImageExtension = {
1580     .base = { __DRI_IMAGE, 17 },
1581
1582     .createImageFromName          = dri2_create_image_from_name,
1583     .createImageFromRenderbuffer  = dri2_create_image_from_renderbuffer,
1584     .destroyImage                 = dri2_destroy_image,
1585     .createImage                  = dri2_create_image,
1586     .queryImage                   = dri2_query_image,
1587     .dupImage                     = dri2_dup_image,
1588     .validateUsage                = dri2_validate_usage,
1589     .createImageFromNames         = dri2_from_names,
1590     .fromPlanar                   = dri2_from_planar,
1591     .createImageFromTexture       = dri2_create_from_texture,
1592     .createImageFromFds           = NULL,
1593     .createImageFromDmaBufs       = NULL,
1594     .blitImage                    = dri2_blit_image,
1595     .getCapabilities              = dri2_get_capabilities,
1596     .mapImage                     = dri2_map_image,
1597     .unmapImage                   = dri2_unmap_image,
1598     .createImageWithModifiers     = NULL,
1599     .createImageFromDmaBufs2      = NULL,
1600     .queryDmaBufFormats           = NULL,
1601     .queryDmaBufModifiers         = NULL,
1602     .queryDmaBufFormatModifierAttribs = NULL,
1603     .createImageFromRenderbuffer2 = dri2_create_image_from_renderbuffer2,
1604 };
1605
1606 static const __DRIrobustnessExtension dri2Robustness = {
1607    .base = { __DRI2_ROBUSTNESS, 1 }
1608 };
1609
1610 static int
1611 dri2_interop_query_device_info(__DRIcontext *_ctx,
1612                                struct mesa_glinterop_device_info *out)
1613 {
1614    struct pipe_screen *screen = dri_context(_ctx)->st->pipe->screen;
1615
1616    /* There is no version 0, thus we do not support it */
1617    if (out->version == 0)
1618       return MESA_GLINTEROP_INVALID_VERSION;
1619
1620    out->pci_segment_group = screen->get_param(screen, PIPE_CAP_PCI_GROUP);
1621    out->pci_bus = screen->get_param(screen, PIPE_CAP_PCI_BUS);
1622    out->pci_device = screen->get_param(screen, PIPE_CAP_PCI_DEVICE);
1623    out->pci_function = screen->get_param(screen, PIPE_CAP_PCI_FUNCTION);
1624
1625    out->vendor_id = screen->get_param(screen, PIPE_CAP_VENDOR_ID);
1626    out->device_id = screen->get_param(screen, PIPE_CAP_DEVICE_ID);
1627
1628    /* Instruct the caller that we support up-to version one of the interface */
1629    out->version = 1;
1630
1631    return MESA_GLINTEROP_SUCCESS;
1632 }
1633
1634 static int
1635 dri2_interop_export_object(__DRIcontext *_ctx,
1636                            struct mesa_glinterop_export_in *in,
1637                            struct mesa_glinterop_export_out *out)
1638 {
1639    struct st_context_iface *st = dri_context(_ctx)->st;
1640    struct pipe_screen *screen = st->pipe->screen;
1641    struct gl_context *ctx = ((struct st_context *)st)->ctx;
1642    struct pipe_resource *res = NULL;
1643    struct winsys_handle whandle;
1644    unsigned target, usage;
1645    boolean success;
1646
1647    /* There is no version 0, thus we do not support it */
1648    if (in->version == 0 || out->version == 0)
1649       return MESA_GLINTEROP_INVALID_VERSION;
1650
1651    /* Validate the target. */
1652    switch (in->target) {
1653    case GL_TEXTURE_BUFFER:
1654    case GL_TEXTURE_1D:
1655    case GL_TEXTURE_2D:
1656    case GL_TEXTURE_3D:
1657    case GL_TEXTURE_RECTANGLE:
1658    case GL_TEXTURE_1D_ARRAY:
1659    case GL_TEXTURE_2D_ARRAY:
1660    case GL_TEXTURE_CUBE_MAP_ARRAY:
1661    case GL_TEXTURE_CUBE_MAP:
1662    case GL_TEXTURE_2D_MULTISAMPLE:
1663    case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
1664    case GL_TEXTURE_EXTERNAL_OES:
1665    case GL_RENDERBUFFER:
1666    case GL_ARRAY_BUFFER:
1667       target = in->target;
1668       break;
1669    case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1670    case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1671    case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1672    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1673    case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1674    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1675       target = GL_TEXTURE_CUBE_MAP;
1676       break;
1677    default:
1678       return MESA_GLINTEROP_INVALID_TARGET;
1679    }
1680
1681    /* Validate the simple case of miplevel. */
1682    if ((target == GL_RENDERBUFFER || target == GL_ARRAY_BUFFER) &&
1683        in->miplevel != 0)
1684       return MESA_GLINTEROP_INVALID_MIP_LEVEL;
1685
1686    /* Validate the OpenGL object and get pipe_resource. */
1687    simple_mtx_lock(&ctx->Shared->Mutex);
1688
1689    if (target == GL_ARRAY_BUFFER) {
1690       /* Buffer objects.
1691        *
1692        * The error checking is based on the documentation of
1693        * clCreateFromGLBuffer from OpenCL 2.0 SDK.
1694        */
1695       struct gl_buffer_object *buf = _mesa_lookup_bufferobj(ctx, in->obj);
1696
1697       /* From OpenCL 2.0 SDK, clCreateFromGLBuffer:
1698        *  "CL_INVALID_GL_OBJECT if bufobj is not a GL buffer object or is
1699        *   a GL buffer object but does not have an existing data store or
1700        *   the size of the buffer is 0."
1701        */
1702       if (!buf || buf->Size == 0) {
1703          simple_mtx_unlock(&ctx->Shared->Mutex);
1704          return MESA_GLINTEROP_INVALID_OBJECT;
1705       }
1706
1707       res = st_buffer_object(buf)->buffer;
1708       if (!res) {
1709          /* this shouldn't happen */
1710          simple_mtx_unlock(&ctx->Shared->Mutex);
1711          return MESA_GLINTEROP_INVALID_OBJECT;
1712       }
1713
1714       out->buf_offset = 0;
1715       out->buf_size = buf->Size;
1716
1717       buf->UsageHistory |= USAGE_DISABLE_MINMAX_CACHE;
1718    } else if (target == GL_RENDERBUFFER) {
1719       /* Renderbuffers.
1720        *
1721        * The error checking is based on the documentation of
1722        * clCreateFromGLRenderbuffer from OpenCL 2.0 SDK.
1723        */
1724       struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, in->obj);
1725
1726       /* From OpenCL 2.0 SDK, clCreateFromGLRenderbuffer:
1727        *   "CL_INVALID_GL_OBJECT if renderbuffer is not a GL renderbuffer
1728        *    object or if the width or height of renderbuffer is zero."
1729        */
1730       if (!rb || rb->Width == 0 || rb->Height == 0) {
1731          simple_mtx_unlock(&ctx->Shared->Mutex);
1732          return MESA_GLINTEROP_INVALID_OBJECT;
1733       }
1734
1735       /* From OpenCL 2.0 SDK, clCreateFromGLRenderbuffer:
1736        *   "CL_INVALID_OPERATION if renderbuffer is a multi-sample GL
1737        *    renderbuffer object."
1738        */
1739       if (rb->NumSamples > 1) {
1740          simple_mtx_unlock(&ctx->Shared->Mutex);
1741          return MESA_GLINTEROP_INVALID_OPERATION;
1742       }
1743
1744       /* From OpenCL 2.0 SDK, clCreateFromGLRenderbuffer:
1745        *   "CL_OUT_OF_RESOURCES if there is a failure to allocate resources
1746        *    required by the OpenCL implementation on the device."
1747        */
1748       res = st_renderbuffer(rb)->texture;
1749       if (!res) {
1750          simple_mtx_unlock(&ctx->Shared->Mutex);
1751          return MESA_GLINTEROP_OUT_OF_RESOURCES;
1752       }
1753
1754       out->internal_format = rb->InternalFormat;
1755       out->view_minlevel = 0;
1756       out->view_numlevels = 1;
1757       out->view_minlayer = 0;
1758       out->view_numlayers = 1;
1759    } else {
1760       /* Texture objects.
1761        *
1762        * The error checking is based on the documentation of
1763        * clCreateFromGLTexture from OpenCL 2.0 SDK.
1764        */
1765       struct gl_texture_object *obj = _mesa_lookup_texture(ctx, in->obj);
1766
1767       if (obj)
1768          _mesa_test_texobj_completeness(ctx, obj);
1769
1770       /* From OpenCL 2.0 SDK, clCreateFromGLTexture:
1771        *   "CL_INVALID_GL_OBJECT if texture is not a GL texture object whose
1772        *    type matches texture_target, if the specified miplevel of texture
1773        *    is not defined, or if the width or height of the specified
1774        *    miplevel is zero or if the GL texture object is incomplete."
1775        */
1776       if (!obj ||
1777           obj->Target != target ||
1778           !obj->_BaseComplete ||
1779           (in->miplevel > 0 && !obj->_MipmapComplete)) {
1780          simple_mtx_unlock(&ctx->Shared->Mutex);
1781          return MESA_GLINTEROP_INVALID_OBJECT;
1782       }
1783
1784       if (target == GL_TEXTURE_BUFFER) {
1785          struct st_buffer_object *stBuf =
1786             st_buffer_object(obj->BufferObject);
1787
1788          if (!stBuf || !stBuf->buffer) {
1789             /* this shouldn't happen */
1790             simple_mtx_unlock(&ctx->Shared->Mutex);
1791             return MESA_GLINTEROP_INVALID_OBJECT;
1792          }
1793          res = stBuf->buffer;
1794
1795          out->internal_format = obj->BufferObjectFormat;
1796          out->buf_offset = obj->BufferOffset;
1797          out->buf_size = obj->BufferSize == -1 ? obj->BufferObject->Size :
1798                                                  obj->BufferSize;
1799
1800          obj->BufferObject->UsageHistory |= USAGE_DISABLE_MINMAX_CACHE;
1801       } else {
1802          /* From OpenCL 2.0 SDK, clCreateFromGLTexture:
1803           *   "CL_INVALID_MIP_LEVEL if miplevel is less than the value of
1804           *    levelbase (for OpenGL implementations) or zero (for OpenGL ES
1805           *    implementations); or greater than the value of q (for both OpenGL
1806           *    and OpenGL ES). levelbase and q are defined for the texture in
1807           *    section 3.8.10 (Texture Completeness) of the OpenGL 2.1
1808           *    specification and section 3.7.10 of the OpenGL ES 2.0."
1809           */
1810          if (in->miplevel < obj->BaseLevel || in->miplevel > obj->_MaxLevel) {
1811             simple_mtx_unlock(&ctx->Shared->Mutex);
1812             return MESA_GLINTEROP_INVALID_MIP_LEVEL;
1813          }
1814
1815          if (!st_finalize_texture(ctx, st->pipe, obj, 0)) {
1816             simple_mtx_unlock(&ctx->Shared->Mutex);
1817             return MESA_GLINTEROP_OUT_OF_RESOURCES;
1818          }
1819
1820          res = st_get_texobj_resource(obj);
1821          if (!res) {
1822             /* Incomplete texture buffer object? This shouldn't really occur. */
1823             simple_mtx_unlock(&ctx->Shared->Mutex);
1824             return MESA_GLINTEROP_INVALID_OBJECT;
1825          }
1826
1827          out->internal_format = obj->Image[0][0]->InternalFormat;
1828          out->view_minlevel = obj->MinLevel;
1829          out->view_numlevels = obj->NumLevels;
1830          out->view_minlayer = obj->MinLayer;
1831          out->view_numlayers = obj->NumLayers;
1832       }
1833    }
1834
1835    /* Get the handle. */
1836    switch (in->access) {
1837    case MESA_GLINTEROP_ACCESS_READ_ONLY:
1838       usage = 0;
1839       break;
1840    case MESA_GLINTEROP_ACCESS_READ_WRITE:
1841    case MESA_GLINTEROP_ACCESS_WRITE_ONLY:
1842       usage = PIPE_HANDLE_USAGE_SHADER_WRITE;
1843       break;
1844    default:
1845       usage = 0;
1846    }
1847
1848    memset(&whandle, 0, sizeof(whandle));
1849    whandle.type = WINSYS_HANDLE_TYPE_FD;
1850
1851    success = screen->resource_get_handle(screen, st->pipe, res, &whandle,
1852                                          usage);
1853    simple_mtx_unlock(&ctx->Shared->Mutex);
1854
1855    if (!success)
1856       return MESA_GLINTEROP_OUT_OF_HOST_MEMORY;
1857
1858    out->dmabuf_fd = whandle.handle;
1859    out->out_driver_data_written = 0;
1860
1861    if (res->target == PIPE_BUFFER)
1862       out->buf_offset += whandle.offset;
1863
1864    /* Instruct the caller that we support up-to version one of the interface */
1865    in->version = 1;
1866    out->version = 1;
1867
1868    return MESA_GLINTEROP_SUCCESS;
1869 }
1870
1871 static const __DRI2interopExtension dri2InteropExtension = {
1872    .base = { __DRI2_INTEROP, 1 },
1873    .query_device_info = dri2_interop_query_device_info,
1874    .export_object = dri2_interop_export_object
1875 };
1876
1877 /**
1878  * \brief the DRI2bufferDamageExtension set_damage_region method
1879  */
1880 static void
1881 dri2_set_damage_region(__DRIdrawable *dPriv, unsigned int nrects, int *rects)
1882 {
1883    struct dri_drawable *drawable = dri_drawable(dPriv);
1884    struct pipe_box *boxes = NULL;
1885
1886    if (nrects) {
1887       boxes = CALLOC(nrects, sizeof(*boxes));
1888       assert(boxes);
1889
1890       for (unsigned int i = 0; i < nrects; i++) {
1891          int *rect = &rects[i * 4];
1892
1893          u_box_2d(rect[0], rect[1], rect[2], rect[3], &boxes[i]);
1894       }
1895    }
1896
1897    FREE(drawable->damage_rects);
1898    drawable->damage_rects = boxes;
1899    drawable->num_damage_rects = nrects;
1900
1901    /* Only apply the damage region if the BACK_LEFT texture is up-to-date. */
1902    if (drawable->texture_stamp == drawable->dPriv->lastStamp &&
1903        (drawable->texture_mask & (1 << ST_ATTACHMENT_BACK_LEFT))) {
1904       struct pipe_screen *screen = drawable->screen->base.screen;
1905       struct pipe_resource *resource;
1906
1907       if (drawable->stvis.samples > 1)
1908          resource = drawable->msaa_textures[ST_ATTACHMENT_BACK_LEFT];
1909       else
1910          resource = drawable->textures[ST_ATTACHMENT_BACK_LEFT];
1911
1912       screen->set_damage_region(screen, resource,
1913                                 drawable->num_damage_rects,
1914                                 drawable->damage_rects);
1915    }
1916 }
1917
1918 static __DRI2bufferDamageExtension dri2BufferDamageExtension = {
1919    .base = { __DRI2_BUFFER_DAMAGE, 1 },
1920 };
1921
1922 /**
1923  * \brief the DRI2ConfigQueryExtension configQueryb method
1924  */
1925 static int
1926 dri2GalliumConfigQueryb(__DRIscreen *sPriv, const char *var,
1927                         unsigned char *val)
1928 {
1929    struct dri_screen *screen = dri_screen(sPriv);
1930
1931    if (!driCheckOption(&screen->dev->option_cache, var, DRI_BOOL))
1932       return dri2ConfigQueryExtension.configQueryb(sPriv, var, val);
1933
1934    *val = driQueryOptionb(&screen->dev->option_cache, var);
1935
1936    return 0;
1937 }
1938
1939 /**
1940  * \brief the DRI2ConfigQueryExtension configQueryi method
1941  */
1942 static int
1943 dri2GalliumConfigQueryi(__DRIscreen *sPriv, const char *var, int *val)
1944 {
1945    struct dri_screen *screen = dri_screen(sPriv);
1946
1947    if (!driCheckOption(&screen->dev->option_cache, var, DRI_INT) &&
1948        !driCheckOption(&screen->dev->option_cache, var, DRI_ENUM))
1949       return dri2ConfigQueryExtension.configQueryi(sPriv, var, val);
1950
1951     *val = driQueryOptioni(&screen->dev->option_cache, var);
1952
1953     return 0;
1954 }
1955
1956 /**
1957  * \brief the DRI2ConfigQueryExtension configQueryf method
1958  */
1959 static int
1960 dri2GalliumConfigQueryf(__DRIscreen *sPriv, const char *var, float *val)
1961 {
1962    struct dri_screen *screen = dri_screen(sPriv);
1963
1964    if (!driCheckOption(&screen->dev->option_cache, var, DRI_FLOAT))
1965       return dri2ConfigQueryExtension.configQueryf(sPriv, var, val);
1966
1967     *val = driQueryOptionf(&screen->dev->option_cache, var);
1968
1969     return 0;
1970 }
1971
1972 /**
1973  * \brief the DRI2ConfigQueryExtension struct.
1974  *
1975  * We first query the driver option cache. Then the dri2 option cache.
1976  */
1977 static const __DRI2configQueryExtension dri2GalliumConfigQueryExtension = {
1978    .base = { __DRI2_CONFIG_QUERY, 1 },
1979
1980    .configQueryb        = dri2GalliumConfigQueryb,
1981    .configQueryi        = dri2GalliumConfigQueryi,
1982    .configQueryf        = dri2GalliumConfigQueryf,
1983 };
1984
1985 /**
1986  * \brief the DRI2blobExtension set_cache_funcs method
1987  */
1988 static void
1989 set_blob_cache_funcs(__DRIscreen *sPriv, __DRIblobCacheSet set,
1990                      __DRIblobCacheGet get)
1991 {
1992    struct dri_screen *screen = dri_screen(sPriv);
1993    struct pipe_screen *pscreen = screen->base.screen;
1994
1995    if (!pscreen->get_disk_shader_cache)
1996       return;
1997
1998    struct disk_cache *cache = pscreen->get_disk_shader_cache(pscreen);
1999
2000    if (!cache)
2001       return;
2002
2003    disk_cache_set_callbacks(cache, set, get);
2004 }
2005
2006 static const __DRI2blobExtension driBlobExtension = {
2007    .base = { __DRI2_BLOB, 1 },
2008    .set_cache_funcs = set_blob_cache_funcs
2009 };
2010
2011 /*
2012  * Backend function init_screen.
2013  */
2014
2015 static const __DRIextension *dri_screen_extensions[] = {
2016    &driTexBufferExtension.base,
2017    &dri2FlushExtension.base,
2018    &dri2ImageExtension.base,
2019    &dri2RendererQueryExtension.base,
2020    &dri2GalliumConfigQueryExtension.base,
2021    &dri2ThrottleExtension.base,
2022    &dri2FenceExtension.base,
2023    &dri2BufferDamageExtension.base,
2024    &dri2InteropExtension.base,
2025    &dri2NoErrorExtension.base,
2026    &driBlobExtension.base,
2027    NULL
2028 };
2029
2030 static const __DRIextension *dri_robust_screen_extensions[] = {
2031    &driTexBufferExtension.base,
2032    &dri2FlushExtension.base,
2033    &dri2ImageExtension.base,
2034    &dri2RendererQueryExtension.base,
2035    &dri2GalliumConfigQueryExtension.base,
2036    &dri2ThrottleExtension.base,
2037    &dri2FenceExtension.base,
2038    &dri2InteropExtension.base,
2039    &dri2BufferDamageExtension.base,
2040    &dri2Robustness.base,
2041    &dri2NoErrorExtension.base,
2042    &driBlobExtension.base,
2043    NULL
2044 };
2045
2046 /**
2047  * This is the driver specific part of the createNewScreen entry point.
2048  *
2049  * Returns the struct gl_config supported by this driver.
2050  */
2051 static const __DRIconfig **
2052 dri2_init_screen(__DRIscreen * sPriv)
2053 {
2054    const __DRIconfig **configs;
2055    struct dri_screen *screen;
2056    struct pipe_screen *pscreen = NULL;
2057
2058    screen = CALLOC_STRUCT(dri_screen);
2059    if (!screen)
2060       return NULL;
2061
2062    screen->sPriv = sPriv;
2063    screen->fd = sPriv->fd;
2064    (void) mtx_init(&screen->opencl_func_mutex, mtx_plain);
2065
2066    sPriv->driverPrivate = (void *)screen;
2067
2068    if (pipe_loader_drm_probe_fd(&screen->dev, screen->fd)) {
2069       dri_init_options(screen);
2070
2071       pscreen = pipe_loader_create_screen(screen->dev);
2072    }
2073
2074    if (!pscreen)
2075        goto release_pipe;
2076
2077    screen->throttle = pscreen->get_param(pscreen, PIPE_CAP_THROTTLE);
2078
2079    if (pscreen->resource_create_with_modifiers)
2080       dri2ImageExtension.createImageWithModifiers =
2081          dri2_create_image_with_modifiers;
2082
2083    if (pscreen->get_param(pscreen, PIPE_CAP_DMABUF)) {
2084       uint64_t cap;
2085
2086       if (drmGetCap(sPriv->fd, DRM_CAP_PRIME, &cap) == 0 &&
2087           (cap & DRM_PRIME_CAP_IMPORT)) {
2088          dri2ImageExtension.createImageFromFds = dri2_from_fds;
2089          dri2ImageExtension.createImageFromDmaBufs = dri2_from_dma_bufs;
2090          dri2ImageExtension.createImageFromDmaBufs2 = dri2_from_dma_bufs2;
2091          if (pscreen->query_dmabuf_modifiers) {
2092             dri2ImageExtension.queryDmaBufFormats = dri2_query_dma_buf_formats;
2093             dri2ImageExtension.queryDmaBufModifiers =
2094                                        dri2_query_dma_buf_modifiers;
2095             dri2ImageExtension.queryDmaBufFormatModifierAttribs =
2096                                        dri2_query_dma_buf_format_modifier_attribs;
2097          }
2098       }
2099    }
2100
2101    if (pscreen->set_damage_region)
2102       dri2BufferDamageExtension.set_damage_region = dri2_set_damage_region;
2103
2104    if (pscreen->get_param(pscreen, PIPE_CAP_DEVICE_RESET_STATUS_QUERY)) {
2105       sPriv->extensions = dri_robust_screen_extensions;
2106       screen->has_reset_status_query = true;
2107    }
2108    else
2109       sPriv->extensions = dri_screen_extensions;
2110
2111    configs = dri_init_screen_helper(screen, pscreen);
2112    if (!configs)
2113       goto destroy_screen;
2114
2115    screen->can_share_buffer = true;
2116    screen->auto_fake_front = dri_with_format(sPriv);
2117    screen->broken_invalidate = !sPriv->dri2.useInvalidate;
2118    screen->lookup_egl_image = dri2_lookup_egl_image;
2119
2120    return configs;
2121
2122 destroy_screen:
2123    dri_destroy_screen_helper(screen);
2124
2125 release_pipe:
2126    if (screen->dev)
2127       pipe_loader_release(&screen->dev, 1);
2128
2129    FREE(screen);
2130    return NULL;
2131 }
2132
2133 /**
2134  * This is the driver specific part of the createNewScreen entry point.
2135  *
2136  * Returns the struct gl_config supported by this driver.
2137  */
2138 static const __DRIconfig **
2139 dri_kms_init_screen(__DRIscreen * sPriv)
2140 {
2141 #if defined(GALLIUM_SOFTPIPE)
2142    const __DRIconfig **configs;
2143    struct dri_screen *screen;
2144    struct pipe_screen *pscreen = NULL;
2145    uint64_t cap;
2146
2147    screen = CALLOC_STRUCT(dri_screen);
2148    if (!screen)
2149       return NULL;
2150
2151    screen->sPriv = sPriv;
2152    screen->fd = sPriv->fd;
2153
2154    sPriv->driverPrivate = (void *)screen;
2155
2156    if (pipe_loader_sw_probe_kms(&screen->dev, screen->fd)) {
2157       dri_init_options(screen);
2158       pscreen = pipe_loader_create_screen(screen->dev);
2159    }
2160
2161    if (!pscreen)
2162        goto release_pipe;
2163
2164    if (pscreen->resource_create_with_modifiers)
2165       dri2ImageExtension.createImageWithModifiers =
2166          dri2_create_image_with_modifiers;
2167
2168    if (drmGetCap(sPriv->fd, DRM_CAP_PRIME, &cap) == 0 &&
2169           (cap & DRM_PRIME_CAP_IMPORT)) {
2170       dri2ImageExtension.createImageFromFds = dri2_from_fds;
2171       dri2ImageExtension.createImageFromDmaBufs = dri2_from_dma_bufs;
2172       dri2ImageExtension.createImageFromDmaBufs2 = dri2_from_dma_bufs2;
2173       if (pscreen->query_dmabuf_modifiers) {
2174          dri2ImageExtension.queryDmaBufFormats = dri2_query_dma_buf_formats;
2175          dri2ImageExtension.queryDmaBufModifiers = dri2_query_dma_buf_modifiers;
2176       }
2177    }
2178
2179    sPriv->extensions = dri_screen_extensions;
2180
2181    configs = dri_init_screen_helper(screen, pscreen);
2182    if (!configs)
2183       goto destroy_screen;
2184
2185    screen->can_share_buffer = false;
2186    screen->auto_fake_front = dri_with_format(sPriv);
2187    screen->broken_invalidate = !sPriv->dri2.useInvalidate;
2188    screen->lookup_egl_image = dri2_lookup_egl_image;
2189
2190    return configs;
2191
2192 destroy_screen:
2193    dri_destroy_screen_helper(screen);
2194
2195 release_pipe:
2196    if (screen->dev)
2197       pipe_loader_release(&screen->dev, 1);
2198
2199    FREE(screen);
2200 #endif // GALLIUM_SOFTPIPE
2201    return NULL;
2202 }
2203
2204 static boolean
2205 dri2_create_buffer(__DRIscreen * sPriv,
2206                    __DRIdrawable * dPriv,
2207                    const struct gl_config * visual, boolean isPixmap)
2208 {
2209    struct dri_drawable *drawable = NULL;
2210
2211    if (!dri_create_buffer(sPriv, dPriv, visual, isPixmap))
2212       return FALSE;
2213
2214    drawable = dPriv->driverPrivate;
2215
2216    drawable->allocate_textures = dri2_allocate_textures;
2217    drawable->flush_frontbuffer = dri2_flush_frontbuffer;
2218    drawable->update_tex_buffer = dri2_update_tex_buffer;
2219    drawable->flush_swapbuffers = dri2_flush_swapbuffers;
2220
2221    return TRUE;
2222 }
2223
2224 /**
2225  * DRI driver virtual function table.
2226  *
2227  * DRI versions differ in their implementation of init_screen and swap_buffers.
2228  */
2229 const struct __DriverAPIRec galliumdrm_driver_api = {
2230    .InitScreen = dri2_init_screen,
2231    .DestroyScreen = dri_destroy_screen,
2232    .CreateContext = dri_create_context,
2233    .DestroyContext = dri_destroy_context,
2234    .CreateBuffer = dri2_create_buffer,
2235    .DestroyBuffer = dri_destroy_buffer,
2236    .MakeCurrent = dri_make_current,
2237    .UnbindContext = dri_unbind_context,
2238
2239    .AllocateBuffer = dri2_allocate_buffer,
2240    .ReleaseBuffer  = dri2_release_buffer,
2241 };
2242
2243 /**
2244  * DRI driver virtual function table.
2245  *
2246  * KMS/DRM version of the DriverAPI above sporting a different InitScreen
2247  * hook. The latter is used to explicitly initialise the kms_swrast driver
2248  * rather than selecting the approapriate driver as suggested by the loader.
2249  */
2250 const struct __DriverAPIRec dri_kms_driver_api = {
2251    .InitScreen = dri_kms_init_screen,
2252    .DestroyScreen = dri_destroy_screen,
2253    .CreateContext = dri_create_context,
2254    .DestroyContext = dri_destroy_context,
2255    .CreateBuffer = dri2_create_buffer,
2256    .DestroyBuffer = dri_destroy_buffer,
2257    .MakeCurrent = dri_make_current,
2258    .UnbindContext = dri_unbind_context,
2259
2260    .AllocateBuffer = dri2_allocate_buffer,
2261    .ReleaseBuffer  = dri2_release_buffer,
2262 };
2263
2264 /* This is the table of extensions that the loader will dlsym() for. */
2265 const __DRIextension *galliumdrm_driver_extensions[] = {
2266     &driCoreExtension.base,
2267     &driImageDriverExtension.base,
2268     &driDRI2Extension.base,
2269     &gallium_config_options.base,
2270     NULL
2271 };
2272
2273 /* vim: set sw=3 ts=8 sts=3 expandtab: */