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 all planes' sampler formats and
 755        * add sampler view usage.
 756        */
 757       use_lowered = true;
 758       if (dri2_yuv_dma_buf_supported(screen, map))
 759          tex_usage |= PIPE_BIND_SAMPLER_VIEW;
 760    }
 761
 762    if (!tex_usage)
 763       return NULL;
 764
 765    img = CALLOC_STRUCT(__DRIimageRec);
 766    if (!img)
 767       return NULL;
 768
 769    memset(&templ, 0, sizeof(templ));
 770    templ.bind = tex_usage;
 771    templ.target = screen->target;
 772    templ.last_level = 0;
 773    templ.depth0 = 1;
 774    templ.array_size = 1;
 775
 776    for (i = (use_lowered ? map->nplanes : num_handles) - 1; i >= 0; i--) {
 777       struct pipe_resource *tex;
 778
 779       templ.width0 = width >> map->planes[i].width_shift;
 780       templ.height0 = height >> map->planes[i].height_shift;
 781       if (use_lowered)
 782          templ.format = dri2_get_pipe_format_for_dri_format(map->planes[i].dri_format);
 783       else
 784          templ.format = map->pipe_format;
 785       assert(templ.format != PIPE_FORMAT_NONE);
 786
 787       tex = pscreen->resource_from_handle(pscreen,
 788                &templ, &whandle[use_lowered ? map->planes[i].buffer_index : i],
 789                PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE);
 790       if (!tex) {
 791          pipe_resource_reference(&img->texture, NULL);
 792          FREE(img);
 793          return NULL;
 794       }
 795
 796       tex->next = img->texture;
 797       img->texture = tex;
 798    }
 799
 800    img->level = 0;
 801    img->layer = 0;
 802    img->use = 0;
 803    img->loader_private = loaderPrivate;
 804
 805    return img;
 806 }
 807
 808 static __DRIimage *
 809 dri2_create_image_from_name(__DRIscreen *_screen,
 810                             int width, int height, int format,
 811                             int name, int pitch, void *loaderPrivate)
 812 {
 813    const struct dri2_format_mapping *map = dri2_get_mapping_by_format(format);
 814    struct winsys_handle whandle;
 815    __DRIimage *img;
 816
 817    if (!map)
 818       return NULL;
 819
 820    memset(&whandle, 0, sizeof(whandle));
 821    whandle.type = WINSYS_HANDLE_TYPE_SHARED;
 822    whandle.handle = name;
 823    whandle.format = map->pipe_format;
 824    whandle.modifier = DRM_FORMAT_MOD_INVALID;
 825
 826    whandle.stride = pitch * util_format_get_blocksize(map->pipe_format);
 827
 828    img = dri2_create_image_from_winsys(_screen, width, height, map,
 829                                        1, &whandle, loaderPrivate);
 830
 831    if (!img)
 832       return NULL;
 833
 834    img->dri_components = map->dri_components;
 835    img->dri_fourcc = map->dri_fourcc;
 836    img->dri_format = map->dri_format;
 837
 838    return img;
 839 }
 840
 841 static unsigned
 842 dri2_get_modifier_num_planes(uint64_t modifier, int fourcc)
 843 {
 844    const struct dri2_format_mapping *map = dri2_get_mapping_by_fourcc(fourcc);
 845
 846    if (!map)
 847       return 0;
 848
 849    switch (modifier) {
 850    case I915_FORMAT_MOD_Y_TILED_CCS:
 851       return 2;
 852    case DRM_FORMAT_MOD_BROADCOM_UIF:
 853    case DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED:
 854    case DRM_FORMAT_MOD_LINEAR:
 855    /* DRM_FORMAT_MOD_NONE is the same as LINEAR */
 856    case DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_EIGHT_GOB:
 857    case DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_FOUR_GOB:
 858    case DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_ONE_GOB:
 859    case DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_SIXTEEN_GOB:
 860    case DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_THIRTYTWO_GOB:
 861    case DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_TWO_GOB:
 862    case DRM_FORMAT_MOD_QCOM_COMPRESSED:
 863    case DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED:
 864    case DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED:
 865    case DRM_FORMAT_MOD_VIVANTE_SUPER_TILED:
 866    case DRM_FORMAT_MOD_VIVANTE_TILED:
 867    /* FD_FORMAT_MOD_QCOM_TILED is not in drm_fourcc.h */
 868    case I915_FORMAT_MOD_X_TILED:
 869    case I915_FORMAT_MOD_Y_TILED:
 870    case DRM_FORMAT_MOD_INVALID:
 871       return map->nplanes;
 872    default:
 873       return 0;
 874    }
 875 }
 876
 877 static __DRIimage *
 878 dri2_create_image_from_fd(__DRIscreen *_screen,
 879                           int width, int height, int fourcc,
 880                           uint64_t modifier, int *fds, int num_fds,
 881                           int *strides, int *offsets, unsigned *error,
 882                           void *loaderPrivate)
 883 {
 884    struct winsys_handle whandles[3];
 885    const struct dri2_format_mapping *map = dri2_get_mapping_by_fourcc(fourcc);
 886    __DRIimage *img = NULL;
 887    unsigned err = __DRI_IMAGE_ERROR_SUCCESS;
 888    int i, expected_num_fds;
 889    int num_handles = dri2_get_modifier_num_planes(modifier, fourcc);
 890
 891    if (!map || num_handles == 0) {
 892       err = __DRI_IMAGE_ERROR_BAD_MATCH;
 893       goto exit;
 894    }
 895
 896    switch (fourcc) {
 897    case DRM_FORMAT_YUYV:
 898    case DRM_FORMAT_UYVY:
 899       expected_num_fds = 1;
 900       break;
 901    default:
 902       expected_num_fds = num_handles;
 903       break;
 904    }
 905
 906    if (num_fds != expected_num_fds) {
 907       err = __DRI_IMAGE_ERROR_BAD_MATCH;
 908       goto exit;
 909    }
 910
 911    memset(whandles, 0, sizeof(whandles));
 912
 913    for (i = 0; i < num_fds; i++) {
 914       if (fds[i] < 0) {
 915          err = __DRI_IMAGE_ERROR_BAD_ALLOC;
 916          goto exit;
 917       }
 918
 919       whandles[i].type = WINSYS_HANDLE_TYPE_FD;
 920       whandles[i].handle = (unsigned)fds[i];
 921       whandles[i].stride = (unsigned)strides[i];
 922       whandles[i].offset = (unsigned)offsets[i];
 923       whandles[i].format = map->pipe_format;
 924       whandles[i].modifier = modifier;
 925       whandles[i].plane = i;
 926    }
 927
 928    img = dri2_create_image_from_winsys(_screen, width, height, map,
 929                                        num_fds, whandles, loaderPrivate);
 930    if(img == NULL) {
 931       err = __DRI_IMAGE_ERROR_BAD_ALLOC;
 932       goto exit;
 933    }
 934
 935    img->dri_components = map->dri_components;
 936    img->dri_fourcc = fourcc;
 937    img->dri_format = map->dri_format;
 938    img->imported_dmabuf = TRUE;
 939
 940 exit:
 941    if (error)
 942       *error = err;
 943
 944    return img;
 945 }
 946
 947 static __DRIimage *
 948 dri2_create_image_common(__DRIscreen *_screen,
 949                          int width, int height,
 950                          int format, unsigned int use,
 951                          const uint64_t *modifiers,
 952                          const unsigned count,
 953                          void *loaderPrivate)
 954 {
 955    const struct dri2_format_mapping *map = dri2_get_mapping_by_format(format);
 956    struct dri_screen *screen = dri_screen(_screen);
 957    __DRIimage *img;
 958    struct pipe_resource templ;
 959    unsigned tex_usage;
 960
 961    if (!map)
 962       return NULL;
 963
 964    tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 965
 966    if (use & __DRI_IMAGE_USE_SCANOUT)
 967       tex_usage |= PIPE_BIND_SCANOUT;
 968    if (use & __DRI_IMAGE_USE_SHARE)
 969       tex_usage |= PIPE_BIND_SHARED;
 970    if (use & __DRI_IMAGE_USE_LINEAR)
 971       tex_usage |= PIPE_BIND_LINEAR;
 972    if (use & __DRI_IMAGE_USE_CURSOR) {
 973       if (width != 64 || height != 64)
 974          return NULL;
 975       tex_usage |= PIPE_BIND_CURSOR;
 976    }
 977
 978    img = CALLOC_STRUCT(__DRIimageRec);
 979    if (!img)
 980       return NULL;
 981
 982    memset(&templ, 0, sizeof(templ));
 983    templ.bind = tex_usage;
 984    templ.format = map->pipe_format;
 985    templ.target = PIPE_TEXTURE_2D;
 986    templ.last_level = 0;
 987    templ.width0 = width;
 988    templ.height0 = height;
 989    templ.depth0 = 1;
 990    templ.array_size = 1;
 991
 992    if (modifiers)
 993       img->texture =
 994          screen->base.screen
 995             ->resource_create_with_modifiers(screen->base.screen,
 996                                              &templ,
 997                                              modifiers,
 998                                              count);
 999    else
1000       img->texture =
1001          screen->base.screen->resource_create(screen->base.screen, &templ);
1002    if (!img->texture) {
1003       FREE(img);
1004       return NULL;
1005    }
1006
1007    img->level = 0;
1008    img->layer = 0;
1009    img->dri_format = format;
1010    img->dri_fourcc = map->dri_fourcc;
1011    img->dri_components = 0;
1012    img->use = use;
1013
1014    img->loader_private = loaderPrivate;
1015    return img;
1016 }
1017
1018 static __DRIimage *
1019 dri2_create_image(__DRIscreen *_screen,
1020                    int width, int height, int format,
1021                    unsigned int use, void *loaderPrivate)
1022 {
1023    return dri2_create_image_common(_screen, width, height, format, use,
1024                                    NULL /* modifiers */, 0 /* count */,
1025                                    loaderPrivate);
1026 }
1027
1028 static __DRIimage *
1029 dri2_create_image_with_modifiers(__DRIscreen *dri_screen,
1030                                  int width, int height, int format,
1031                                  const uint64_t *modifiers,
1032                                  const unsigned count,
1033                                  void *loaderPrivate)
1034 {
1035    return dri2_create_image_common(dri_screen, width, height, format,
1036                                    __DRI_IMAGE_USE_SHARE, modifiers, count,
1037                                    loaderPrivate);
1038 }
1039
1040 static bool
1041 dri2_query_image_common(__DRIimage *image, int attrib, int *value)
1042 {
1043    switch (attrib) {
1044    case __DRI_IMAGE_ATTRIB_FORMAT:
1045       *value = image->dri_format;
1046       return true;
1047    case __DRI_IMAGE_ATTRIB_WIDTH:
1048       *value = image->texture->width0;
1049       return true;
1050    case __DRI_IMAGE_ATTRIB_HEIGHT:
1051       *value = image->texture->height0;
1052       return true;
1053    case __DRI_IMAGE_ATTRIB_COMPONENTS:
1054       if (image->dri_components == 0)
1055          return false;
1056       *value = image->dri_components;
1057       return true;
1058    case __DRI_IMAGE_ATTRIB_FOURCC:
1059       if (image->dri_fourcc) {
1060          *value = image->dri_fourcc;
1061       } else {
1062          const struct dri2_format_mapping *map;
1063
1064          map = dri2_get_mapping_by_format(image->dri_format);
1065          if (!map)
1066             return false;
1067
1068          *value = map->dri_fourcc;
1069       }
1070       return true;
1071    default:
1072       return false;
1073    }
1074 }
1075
1076 static bool
1077 dri2_query_image_by_resource_handle(__DRIimage *image, int attrib, int *value)
1078 {
1079    struct pipe_screen *pscreen = image->texture->screen;
1080    struct winsys_handle whandle;
1081    unsigned usage;
1082    memset(&whandle, 0, sizeof(whandle));
1083    whandle.plane = image->plane;
1084
1085    switch (attrib) {
1086    case __DRI_IMAGE_ATTRIB_STRIDE:
1087    case __DRI_IMAGE_ATTRIB_OFFSET:
1088    case __DRI_IMAGE_ATTRIB_HANDLE:
1089       whandle.type = WINSYS_HANDLE_TYPE_KMS;
1090       break;
1091    case __DRI_IMAGE_ATTRIB_NAME:
1092       whandle.type = WINSYS_HANDLE_TYPE_SHARED;
1093       break;
1094    case __DRI_IMAGE_ATTRIB_FD:
1095       whandle.type = WINSYS_HANDLE_TYPE_FD;
1096       break;
1097    case __DRI_IMAGE_ATTRIB_NUM_PLANES:
1098       *value = 1;
1099       return true;
1100    case __DRI_IMAGE_ATTRIB_MODIFIER_UPPER:
1101    case __DRI_IMAGE_ATTRIB_MODIFIER_LOWER:
1102       whandle.type = WINSYS_HANDLE_TYPE_KMS;
1103       whandle.modifier = DRM_FORMAT_MOD_INVALID;
1104       break;
1105    default:
1106       return false;
1107    }
1108
1109    usage = PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE;
1110
1111    if (image->use & __DRI_IMAGE_USE_BACKBUFFER)
1112       usage |= PIPE_HANDLE_USAGE_EXPLICIT_FLUSH;
1113
1114    if (!pscreen->resource_get_handle(pscreen, NULL, image->texture,
1115                                      &whandle, usage))
1116       return false;
1117
1118    switch (attrib) {
1119    case __DRI_IMAGE_ATTRIB_STRIDE:
1120       *value = whandle.stride;
1121       return true;
1122    case __DRI_IMAGE_ATTRIB_OFFSET:
1123       *value = whandle.offset;
1124       return true;
1125    case __DRI_IMAGE_ATTRIB_HANDLE:
1126    case __DRI_IMAGE_ATTRIB_NAME:
1127    case __DRI_IMAGE_ATTRIB_FD:
1128       *value = whandle.handle;
1129       return true;
1130    case __DRI_IMAGE_ATTRIB_MODIFIER_UPPER:
1131       if (whandle.modifier == DRM_FORMAT_MOD_INVALID)
1132          return false;
1133       *value = (whandle.modifier >> 32) & 0xffffffff;
1134       return true;
1135    case __DRI_IMAGE_ATTRIB_MODIFIER_LOWER:
1136       if (whandle.modifier == DRM_FORMAT_MOD_INVALID)
1137          return false;
1138       *value = whandle.modifier & 0xffffffff;
1139       return true;
1140    default:
1141       return false;
1142    }
1143 }
1144
1145 static bool
1146 dri2_resource_get_param(__DRIimage *image, enum pipe_resource_param param,
1147                         unsigned handle_usage, uint64_t *value)
1148 {
1149    struct pipe_screen *pscreen = image->texture->screen;
1150    if (!pscreen->resource_get_param)
1151       return false;
1152
1153    return pscreen->resource_get_param(pscreen, NULL, image->texture,
1154                                       image->plane, 0, param, handle_usage,
1155                                       value);
1156 }
1157
1158 static bool
1159 dri2_query_image_by_resource_param(__DRIimage *image, int attrib, int *value)
1160 {
1161    enum pipe_resource_param param;
1162    uint64_t res_param;
1163    unsigned handle_usage;
1164
1165    if (!image->texture->screen->resource_get_param)
1166       return false;
1167
1168    switch (attrib) {
1169    case __DRI_IMAGE_ATTRIB_STRIDE:
1170       param = PIPE_RESOURCE_PARAM_STRIDE;
1171       break;
1172    case __DRI_IMAGE_ATTRIB_OFFSET:
1173       param = PIPE_RESOURCE_PARAM_OFFSET;
1174       break;
1175    case __DRI_IMAGE_ATTRIB_NUM_PLANES:
1176       param = PIPE_RESOURCE_PARAM_NPLANES;
1177       break;
1178    case __DRI_IMAGE_ATTRIB_MODIFIER_UPPER:
1179    case __DRI_IMAGE_ATTRIB_MODIFIER_LOWER:
1180       param = PIPE_RESOURCE_PARAM_MODIFIER;
1181       break;
1182    case __DRI_IMAGE_ATTRIB_HANDLE:
1183       param = PIPE_RESOURCE_PARAM_HANDLE_TYPE_KMS;
1184       break;
1185    case __DRI_IMAGE_ATTRIB_NAME:
1186       param = PIPE_RESOURCE_PARAM_HANDLE_TYPE_SHARED;
1187       break;
1188    case __DRI_IMAGE_ATTRIB_FD:
1189       param = PIPE_RESOURCE_PARAM_HANDLE_TYPE_FD;
1190       break;
1191    default:
1192       return false;
1193    }
1194
1195    handle_usage = PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE;
1196
1197    if (image->use & __DRI_IMAGE_USE_BACKBUFFER)
1198       handle_usage |= PIPE_HANDLE_USAGE_EXPLICIT_FLUSH;
1199
1200    if (!dri2_resource_get_param(image, param, handle_usage, &res_param))
1201       return false;
1202
1203    switch (attrib) {
1204    case __DRI_IMAGE_ATTRIB_STRIDE:
1205    case __DRI_IMAGE_ATTRIB_OFFSET:
1206    case __DRI_IMAGE_ATTRIB_NUM_PLANES:
1207       if (res_param > INT_MAX)
1208          return false;
1209       *value = (int)res_param;
1210       return true;
1211    case __DRI_IMAGE_ATTRIB_HANDLE:
1212    case __DRI_IMAGE_ATTRIB_NAME:
1213    case __DRI_IMAGE_ATTRIB_FD:
1214       if (res_param > UINT_MAX)
1215          return false;
1216       *value = (int)res_param;
1217       return true;
1218    case __DRI_IMAGE_ATTRIB_MODIFIER_UPPER:
1219       if (res_param == DRM_FORMAT_MOD_INVALID)
1220          return false;
1221       *value = (res_param >> 32) & 0xffffffff;
1222       return true;
1223    case __DRI_IMAGE_ATTRIB_MODIFIER_LOWER:
1224       if (res_param == DRM_FORMAT_MOD_INVALID)
1225          return false;
1226       *value = res_param & 0xffffffff;
1227       return true;
1228    default:
1229       return false;
1230    }
1231 }
1232
1233 static GLboolean
1234 dri2_query_image(__DRIimage *image, int attrib, int *value)
1235 {
1236    if (dri2_query_image_common(image, attrib, value))
1237       return GL_TRUE;
1238    else if (dri2_query_image_by_resource_param(image, attrib, value))
1239       return GL_TRUE;
1240    else if (dri2_query_image_by_resource_handle(image, attrib, value))
1241       return GL_TRUE;
1242    else
1243       return GL_FALSE;
1244 }
1245
1246 static __DRIimage *
1247 dri2_dup_image(__DRIimage *image, void *loaderPrivate)
1248 {
1249    __DRIimage *img;
1250
1251    img = CALLOC_STRUCT(__DRIimageRec);
1252    if (!img)
1253       return NULL;
1254
1255    img->texture = NULL;
1256    pipe_resource_reference(&img->texture, image->texture);
1257    img->level = image->level;
1258    img->layer = image->layer;
1259    img->dri_format = image->dri_format;
1260    /* This should be 0 for sub images, but dup is also used for base images. */
1261    img->dri_components = image->dri_components;
1262    img->loader_private = loaderPrivate;
1263
1264    return img;
1265 }
1266
1267 static GLboolean
1268 dri2_validate_usage(__DRIimage *image, unsigned int use)
1269 {
1270    if (!image || !image->texture)
1271       return false;
1272
1273    struct pipe_screen *screen = image->texture->screen;
1274    if (!screen->check_resource_capability)
1275       return true;
1276
1277    /* We don't want to check these:
1278     *   __DRI_IMAGE_USE_SHARE (all images are shareable)
1279     *   __DRI_IMAGE_USE_BACKBUFFER (all images support this)
1280     */
1281    unsigned bind = 0;
1282    if (use & __DRI_IMAGE_USE_SCANOUT)
1283       bind |= PIPE_BIND_SCANOUT;
1284    if (use & __DRI_IMAGE_USE_LINEAR)
1285       bind |= PIPE_BIND_LINEAR;
1286    if (use & __DRI_IMAGE_USE_CURSOR)
1287       bind |= PIPE_BIND_CURSOR;
1288
1289    if (!bind)
1290       return true;
1291
1292    return screen->check_resource_capability(screen, image->texture, bind);
1293 }
1294
1295 static __DRIimage *
1296 dri2_from_names(__DRIscreen *screen, int width, int height, int format,
1297                 int *names, int num_names, int *strides, int *offsets,
1298                 void *loaderPrivate)
1299 {
1300    const struct dri2_format_mapping *map = dri2_get_mapping_by_format(format);
1301    __DRIimage *img;
1302    struct winsys_handle whandle;
1303
1304    if (!map)
1305       return NULL;
1306
1307    if (num_names != 1)
1308       return NULL;
1309
1310    memset(&whandle, 0, sizeof(whandle));
1311    whandle.type = WINSYS_HANDLE_TYPE_SHARED;
1312    whandle.handle = names[0];
1313    whandle.stride = strides[0];
1314    whandle.offset = offsets[0];
1315    whandle.format = map->pipe_format;
1316    whandle.modifier = DRM_FORMAT_MOD_INVALID;
1317
1318    img = dri2_create_image_from_winsys(screen, width, height, map,
1319                                        1, &whandle, loaderPrivate);
1320    if (img == NULL)
1321       return NULL;
1322
1323    img->dri_components = map->dri_components;
1324    img->dri_fourcc = map->dri_fourcc;
1325    img->dri_format = map->pipe_format;
1326
1327    return img;
1328 }
1329
1330 static __DRIimage *
1331 dri2_from_planar(__DRIimage *image, int plane, void *loaderPrivate)
1332 {
1333    __DRIimage *img;
1334
1335    if (plane < 0) {
1336       return NULL;
1337    } else if (plane > 0) {
1338       uint64_t planes;
1339       if (!dri2_resource_get_param(image, PIPE_RESOURCE_PARAM_NPLANES, 0,
1340                                    &planes) ||
1341           plane >= planes) {
1342          return NULL;
1343       }
1344    }
1345
1346    if (image->dri_components == 0) {
1347       uint64_t modifier;
1348       if (!dri2_resource_get_param(image, PIPE_RESOURCE_PARAM_MODIFIER, 0,
1349                                    &modifier) ||
1350           modifier == DRM_FORMAT_MOD_INVALID) {
1351          return NULL;
1352       }
1353    }
1354
1355    img = dri2_dup_image(image, loaderPrivate);
1356    if (img == NULL)
1357       return NULL;
1358
1359    if (img->texture->screen->resource_changed)
1360       img->texture->screen->resource_changed(img->texture->screen,
1361                                              img->texture);
1362
1363    /* set this to 0 for sub images. */
1364    img->dri_components = 0;
1365    img->plane = plane;
1366    return img;
1367 }
1368
1369 static __DRIimage *
1370 dri2_from_fds(__DRIscreen *screen, int width, int height, int fourcc,
1371               int *fds, int num_fds, int *strides, int *offsets,
1372               void *loaderPrivate)
1373 {
1374    return dri2_create_image_from_fd(screen, width, height, fourcc,
1375                                    DRM_FORMAT_MOD_INVALID, fds, num_fds,
1376                                    strides, offsets, NULL, loaderPrivate);
1377 }
1378
1379 static boolean
1380 dri2_query_dma_buf_modifiers(__DRIscreen *_screen, int fourcc, int max,
1381                              uint64_t *modifiers, unsigned int *external_only,
1382                              int *count)
1383 {
1384    struct dri_screen *screen = dri_screen(_screen);
1385    struct pipe_screen *pscreen = screen->base.screen;
1386    const struct dri2_format_mapping *map = dri2_get_mapping_by_fourcc(fourcc);
1387    enum pipe_format format;
1388
1389    if (!map)
1390       return false;
1391
1392    format = map->pipe_format;
1393
1394    if (pscreen->query_dmabuf_modifiers != NULL &&
1395        (pscreen->is_format_supported(pscreen, format, screen->target, 0, 0,
1396                                      PIPE_BIND_RENDER_TARGET) ||
1397         pscreen->is_format_supported(pscreen, format, screen->target, 0, 0,
1398                                      PIPE_BIND_SAMPLER_VIEW) ||
1399         dri2_yuv_dma_buf_supported(screen, map))) {
1400       pscreen->query_dmabuf_modifiers(pscreen, format, max, modifiers,
1401                                       external_only, count);
1402       return true;
1403    }
1404    return false;
1405 }
1406
1407 static boolean
1408 dri2_query_dma_buf_format_modifier_attribs(__DRIscreen *_screen,
1409                                            uint32_t fourcc, uint64_t modifier,
1410                                            int attrib, uint64_t *value)
1411 {
1412    switch (attrib) {
1413    case __DRI_IMAGE_FORMAT_MODIFIER_ATTRIB_PLANE_COUNT: {
1414       uint64_t mod_planes = dri2_get_modifier_num_planes(modifier, fourcc);
1415       if (mod_planes > 0)
1416          *value = mod_planes;
1417       return mod_planes > 0;
1418    }
1419    default:
1420       return false;
1421    }
1422 }
1423
1424 static __DRIimage *
1425 dri2_from_dma_bufs(__DRIscreen *screen,
1426                    int width, int height, int fourcc,
1427                    int *fds, int num_fds,
1428                    int *strides, int *offsets,
1429                    enum __DRIYUVColorSpace yuv_color_space,
1430                    enum __DRISampleRange sample_range,
1431                    enum __DRIChromaSiting horizontal_siting,
1432                    enum __DRIChromaSiting vertical_siting,
1433                    unsigned *error,
1434                    void *loaderPrivate)
1435 {
1436    __DRIimage *img;
1437
1438    img = dri2_create_image_from_fd(screen, width, height, fourcc,
1439                                    DRM_FORMAT_MOD_INVALID, fds, num_fds,
1440                                    strides, offsets, error, loaderPrivate);
1441    if (img == NULL)
1442       return NULL;
1443
1444    img->yuv_color_space = yuv_color_space;
1445    img->sample_range = sample_range;
1446    img->horizontal_siting = horizontal_siting;
1447    img->vertical_siting = vertical_siting;
1448
1449    *error = __DRI_IMAGE_ERROR_SUCCESS;
1450    return img;
1451 }
1452
1453 static __DRIimage *
1454 dri2_from_dma_bufs2(__DRIscreen *screen,
1455                     int width, int height, int fourcc,
1456                     uint64_t modifier, int *fds, int num_fds,
1457                     int *strides, int *offsets,
1458                     enum __DRIYUVColorSpace yuv_color_space,
1459                     enum __DRISampleRange sample_range,
1460                     enum __DRIChromaSiting horizontal_siting,
1461                     enum __DRIChromaSiting vertical_siting,
1462                     unsigned *error,
1463                     void *loaderPrivate)
1464 {
1465    __DRIimage *img;
1466
1467    img = dri2_create_image_from_fd(screen, width, height, fourcc,
1468                                    modifier, fds, num_fds, strides, offsets,
1469                                    error, loaderPrivate);
1470    if (img == NULL)
1471       return NULL;
1472
1473    img->yuv_color_space = yuv_color_space;
1474    img->sample_range = sample_range;
1475    img->horizontal_siting = horizontal_siting;
1476    img->vertical_siting = vertical_siting;
1477
1478    *error = __DRI_IMAGE_ERROR_SUCCESS;
1479    return img;
1480 }
1481
1482 static void
1483 dri2_blit_image(__DRIcontext *context, __DRIimage *dst, __DRIimage *src,
1484                 int dstx0, int dsty0, int dstwidth, int dstheight,
1485                 int srcx0, int srcy0, int srcwidth, int srcheight,
1486                 int flush_flag)
1487 {
1488    struct dri_context *ctx = dri_context(context);
1489    struct pipe_context *pipe = ctx->st->pipe;
1490    struct pipe_screen *screen;
1491    struct pipe_fence_handle *fence;
1492    struct pipe_blit_info blit;
1493
1494    if (!dst || !src)
1495       return;
1496
1497    memset(&blit, 0, sizeof(blit));
1498    blit.dst.resource = dst->texture;
1499    blit.dst.box.x = dstx0;
1500    blit.dst.box.y = dsty0;
1501    blit.dst.box.width = dstwidth;
1502    blit.dst.box.height = dstheight;
1503    blit.dst.box.depth = 1;
1504    blit.dst.format = dst->texture->format;
1505    blit.src.resource = src->texture;
1506    blit.src.box.x = srcx0;
1507    blit.src.box.y = srcy0;
1508    blit.src.box.width = srcwidth;
1509    blit.src.box.height = srcheight;
1510    blit.src.box.depth = 1;
1511    blit.src.format = src->texture->format;
1512    blit.mask = PIPE_MASK_RGBA;
1513    blit.filter = PIPE_TEX_FILTER_NEAREST;
1514
1515    pipe->blit(pipe, &blit);
1516
1517    if (flush_flag == __BLIT_FLAG_FLUSH) {
1518       pipe->flush_resource(pipe, dst->texture);
1519       ctx->st->flush(ctx->st, 0, NULL, NULL, NULL);
1520    } else if (flush_flag == __BLIT_FLAG_FINISH) {
1521       screen = dri_screen(ctx->sPriv)->base.screen;
1522       pipe->flush_resource(pipe, dst->texture);
1523       ctx->st->flush(ctx->st, 0, &fence, NULL, NULL);
1524       (void) screen->fence_finish(screen, NULL, fence, PIPE_TIMEOUT_INFINITE);
1525       screen->fence_reference(screen, &fence, NULL);
1526    }
1527 }
1528
1529 static void *
1530 dri2_map_image(__DRIcontext *context, __DRIimage *image,
1531                 int x0, int y0, int width, int height,
1532                 unsigned int flags, int *stride, void **data)
1533 {
1534    struct dri_context *ctx = dri_context(context);
1535    struct pipe_context *pipe = ctx->st->pipe;
1536    enum pipe_transfer_usage pipe_access = 0;
1537    struct pipe_transfer *trans;
1538    void *map;
1539
1540    if (!image || !data || *data)
1541       return NULL;
1542
1543    if (flags & __DRI_IMAGE_TRANSFER_READ)
1544          pipe_access |= PIPE_TRANSFER_READ;
1545    if (flags & __DRI_IMAGE_TRANSFER_WRITE)
1546          pipe_access |= PIPE_TRANSFER_WRITE;
1547
1548    map = pipe_transfer_map(pipe, image->texture,
1549                            0, 0, pipe_access, x0, y0, width, height,
1550                            &trans);
1551    if (map) {
1552       *data = trans;
1553       *stride = trans->stride;
1554    }
1555
1556    return map;
1557 }
1558
1559 static void
1560 dri2_unmap_image(__DRIcontext *context, __DRIimage *image, void *data)
1561 {
1562    struct dri_context *ctx = dri_context(context);
1563    struct pipe_context *pipe = ctx->st->pipe;
1564
1565    pipe_transfer_unmap(pipe, (struct pipe_transfer *)data);
1566 }
1567
1568 static int
1569 dri2_get_capabilities(__DRIscreen *_screen)
1570 {
1571    struct dri_screen *screen = dri_screen(_screen);
1572
1573    return (screen->can_share_buffer ? __DRI_IMAGE_CAP_GLOBAL_NAMES : 0);
1574 }
1575
1576 /* The extension is modified during runtime if DRI_PRIME is detected */
1577 static __DRIimageExtension dri2ImageExtension = {
1578     .base = { __DRI_IMAGE, 17 },
1579
1580     .createImageFromName          = dri2_create_image_from_name,
1581     .createImageFromRenderbuffer  = dri2_create_image_from_renderbuffer,
1582     .destroyImage                 = dri2_destroy_image,
1583     .createImage                  = dri2_create_image,
1584     .queryImage                   = dri2_query_image,
1585     .dupImage                     = dri2_dup_image,
1586     .validateUsage                = dri2_validate_usage,
1587     .createImageFromNames         = dri2_from_names,
1588     .fromPlanar                   = dri2_from_planar,
1589     .createImageFromTexture       = dri2_create_from_texture,
1590     .createImageFromFds           = NULL,
1591     .createImageFromDmaBufs       = NULL,
1592     .blitImage                    = dri2_blit_image,
1593     .getCapabilities              = dri2_get_capabilities,
1594     .mapImage                     = dri2_map_image,
1595     .unmapImage                   = dri2_unmap_image,
1596     .createImageWithModifiers     = NULL,
1597     .createImageFromDmaBufs2      = NULL,
1598     .queryDmaBufFormats           = NULL,
1599     .queryDmaBufModifiers         = NULL,
1600     .queryDmaBufFormatModifierAttribs = NULL,
1601     .createImageFromRenderbuffer2 = dri2_create_image_from_renderbuffer2,
1602 };
1603
1604 static const __DRIrobustnessExtension dri2Robustness = {
1605    .base = { __DRI2_ROBUSTNESS, 1 }
1606 };
1607
1608 static int
1609 dri2_interop_query_device_info(__DRIcontext *_ctx,
1610                                struct mesa_glinterop_device_info *out)
1611 {
1612    struct pipe_screen *screen = dri_context(_ctx)->st->pipe->screen;
1613
1614    /* There is no version 0, thus we do not support it */
1615    if (out->version == 0)
1616       return MESA_GLINTEROP_INVALID_VERSION;
1617
1618    out->pci_segment_group = screen->get_param(screen, PIPE_CAP_PCI_GROUP);
1619    out->pci_bus = screen->get_param(screen, PIPE_CAP_PCI_BUS);
1620    out->pci_device = screen->get_param(screen, PIPE_CAP_PCI_DEVICE);
1621    out->pci_function = screen->get_param(screen, PIPE_CAP_PCI_FUNCTION);
1622
1623    out->vendor_id = screen->get_param(screen, PIPE_CAP_VENDOR_ID);
1624    out->device_id = screen->get_param(screen, PIPE_CAP_DEVICE_ID);
1625
1626    /* Instruct the caller that we support up-to version one of the interface */
1627    out->version = 1;
1628
1629    return MESA_GLINTEROP_SUCCESS;
1630 }
1631
1632 static int
1633 dri2_interop_export_object(__DRIcontext *_ctx,
1634                            struct mesa_glinterop_export_in *in,
1635                            struct mesa_glinterop_export_out *out)
1636 {
1637    struct st_context_iface *st = dri_context(_ctx)->st;
1638    struct pipe_screen *screen = st->pipe->screen;
1639    struct gl_context *ctx = ((struct st_context *)st)->ctx;
1640    struct pipe_resource *res = NULL;
1641    struct winsys_handle whandle;
1642    unsigned target, usage;
1643    boolean success;
1644
1645    /* There is no version 0, thus we do not support it */
1646    if (in->version == 0 || out->version == 0)
1647       return MESA_GLINTEROP_INVALID_VERSION;
1648
1649    /* Validate the target. */
1650    switch (in->target) {
1651    case GL_TEXTURE_BUFFER:
1652    case GL_TEXTURE_1D:
1653    case GL_TEXTURE_2D:
1654    case GL_TEXTURE_3D:
1655    case GL_TEXTURE_RECTANGLE:
1656    case GL_TEXTURE_1D_ARRAY:
1657    case GL_TEXTURE_2D_ARRAY:
1658    case GL_TEXTURE_CUBE_MAP_ARRAY:
1659    case GL_TEXTURE_CUBE_MAP:
1660    case GL_TEXTURE_2D_MULTISAMPLE:
1661    case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
1662    case GL_TEXTURE_EXTERNAL_OES:
1663    case GL_RENDERBUFFER:
1664    case GL_ARRAY_BUFFER:
1665       target = in->target;
1666       break;
1667    case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1668    case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1669    case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1670    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1671    case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1672    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1673       target = GL_TEXTURE_CUBE_MAP;
1674       break;
1675    default:
1676       return MESA_GLINTEROP_INVALID_TARGET;
1677    }
1678
1679    /* Validate the simple case of miplevel. */
1680    if ((target == GL_RENDERBUFFER || target == GL_ARRAY_BUFFER) &&
1681        in->miplevel != 0)
1682       return MESA_GLINTEROP_INVALID_MIP_LEVEL;
1683
1684    /* Validate the OpenGL object and get pipe_resource. */
1685    simple_mtx_lock(&ctx->Shared->Mutex);
1686
1687    if (target == GL_ARRAY_BUFFER) {
1688       /* Buffer objects.
1689        *
1690        * The error checking is based on the documentation of
1691        * clCreateFromGLBuffer from OpenCL 2.0 SDK.
1692        */
1693       struct gl_buffer_object *buf = _mesa_lookup_bufferobj(ctx, in->obj);
1694
1695       /* From OpenCL 2.0 SDK, clCreateFromGLBuffer:
1696        *  "CL_INVALID_GL_OBJECT if bufobj is not a GL buffer object or is
1697        *   a GL buffer object but does not have an existing data store or
1698        *   the size of the buffer is 0."
1699        */
1700       if (!buf || buf->Size == 0) {
1701          simple_mtx_unlock(&ctx->Shared->Mutex);
1702          return MESA_GLINTEROP_INVALID_OBJECT;
1703       }
1704
1705       res = st_buffer_object(buf)->buffer;
1706       if (!res) {
1707          /* this shouldn't happen */
1708          simple_mtx_unlock(&ctx->Shared->Mutex);
1709          return MESA_GLINTEROP_INVALID_OBJECT;
1710       }
1711
1712       out->buf_offset = 0;
1713       out->buf_size = buf->Size;
1714
1715       buf->UsageHistory |= USAGE_DISABLE_MINMAX_CACHE;
1716    } else if (target == GL_RENDERBUFFER) {
1717       /* Renderbuffers.
1718        *
1719        * The error checking is based on the documentation of
1720        * clCreateFromGLRenderbuffer from OpenCL 2.0 SDK.
1721        */
1722       struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, in->obj);
1723
1724       /* From OpenCL 2.0 SDK, clCreateFromGLRenderbuffer:
1725        *   "CL_INVALID_GL_OBJECT if renderbuffer is not a GL renderbuffer
1726        *    object or if the width or height of renderbuffer is zero."
1727        */
1728       if (!rb || rb->Width == 0 || rb->Height == 0) {
1729          simple_mtx_unlock(&ctx->Shared->Mutex);
1730          return MESA_GLINTEROP_INVALID_OBJECT;
1731       }
1732
1733       /* From OpenCL 2.0 SDK, clCreateFromGLRenderbuffer:
1734        *   "CL_INVALID_OPERATION if renderbuffer is a multi-sample GL
1735        *    renderbuffer object."
1736        */
1737       if (rb->NumSamples > 1) {
1738          simple_mtx_unlock(&ctx->Shared->Mutex);
1739          return MESA_GLINTEROP_INVALID_OPERATION;
1740       }
1741
1742       /* From OpenCL 2.0 SDK, clCreateFromGLRenderbuffer:
1743        *   "CL_OUT_OF_RESOURCES if there is a failure to allocate resources
1744        *    required by the OpenCL implementation on the device."
1745        */
1746       res = st_renderbuffer(rb)->texture;
1747       if (!res) {
1748          simple_mtx_unlock(&ctx->Shared->Mutex);
1749          return MESA_GLINTEROP_OUT_OF_RESOURCES;
1750       }
1751
1752       out->internal_format = rb->InternalFormat;
1753       out->view_minlevel = 0;
1754       out->view_numlevels = 1;
1755       out->view_minlayer = 0;
1756       out->view_numlayers = 1;
1757    } else {
1758       /* Texture objects.
1759        *
1760        * The error checking is based on the documentation of
1761        * clCreateFromGLTexture from OpenCL 2.0 SDK.
1762        */
1763       struct gl_texture_object *obj = _mesa_lookup_texture(ctx, in->obj);
1764
1765       if (obj)
1766          _mesa_test_texobj_completeness(ctx, obj);
1767
1768       /* From OpenCL 2.0 SDK, clCreateFromGLTexture:
1769        *   "CL_INVALID_GL_OBJECT if texture is not a GL texture object whose
1770        *    type matches texture_target, if the specified miplevel of texture
1771        *    is not defined, or if the width or height of the specified
1772        *    miplevel is zero or if the GL texture object is incomplete."
1773        */
1774       if (!obj ||
1775           obj->Target != target ||
1776           !obj->_BaseComplete ||
1777           (in->miplevel > 0 && !obj->_MipmapComplete)) {
1778          simple_mtx_unlock(&ctx->Shared->Mutex);
1779          return MESA_GLINTEROP_INVALID_OBJECT;
1780       }
1781
1782       if (target == GL_TEXTURE_BUFFER) {
1783          struct st_buffer_object *stBuf =
1784             st_buffer_object(obj->BufferObject);
1785
1786          if (!stBuf || !stBuf->buffer) {
1787             /* this shouldn't happen */
1788             simple_mtx_unlock(&ctx->Shared->Mutex);
1789             return MESA_GLINTEROP_INVALID_OBJECT;
1790          }
1791          res = stBuf->buffer;
1792
1793          out->internal_format = obj->BufferObjectFormat;
1794          out->buf_offset = obj->BufferOffset;
1795          out->buf_size = obj->BufferSize == -1 ? obj->BufferObject->Size :
1796                                                  obj->BufferSize;
1797
1798          obj->BufferObject->UsageHistory |= USAGE_DISABLE_MINMAX_CACHE;
1799       } else {
1800          /* From OpenCL 2.0 SDK, clCreateFromGLTexture:
1801           *   "CL_INVALID_MIP_LEVEL if miplevel is less than the value of
1802           *    levelbase (for OpenGL implementations) or zero (for OpenGL ES
1803           *    implementations); or greater than the value of q (for both OpenGL
1804           *    and OpenGL ES). levelbase and q are defined for the texture in
1805           *    section 3.8.10 (Texture Completeness) of the OpenGL 2.1
1806           *    specification and section 3.7.10 of the OpenGL ES 2.0."
1807           */
1808          if (in->miplevel < obj->BaseLevel || in->miplevel > obj->_MaxLevel) {
1809             simple_mtx_unlock(&ctx->Shared->Mutex);
1810             return MESA_GLINTEROP_INVALID_MIP_LEVEL;
1811          }
1812
1813          if (!st_finalize_texture(ctx, st->pipe, obj, 0)) {
1814             simple_mtx_unlock(&ctx->Shared->Mutex);
1815             return MESA_GLINTEROP_OUT_OF_RESOURCES;
1816          }
1817
1818          res = st_get_texobj_resource(obj);
1819          if (!res) {
1820             /* Incomplete texture buffer object? This shouldn't really occur. */
1821             simple_mtx_unlock(&ctx->Shared->Mutex);
1822             return MESA_GLINTEROP_INVALID_OBJECT;
1823          }
1824
1825          out->internal_format = obj->Image[0][0]->InternalFormat;
1826          out->view_minlevel = obj->MinLevel;
1827          out->view_numlevels = obj->NumLevels;
1828          out->view_minlayer = obj->MinLayer;
1829          out->view_numlayers = obj->NumLayers;
1830       }
1831    }
1832
1833    /* Get the handle. */
1834    switch (in->access) {
1835    case MESA_GLINTEROP_ACCESS_READ_ONLY:
1836       usage = 0;
1837       break;
1838    case MESA_GLINTEROP_ACCESS_READ_WRITE:
1839    case MESA_GLINTEROP_ACCESS_WRITE_ONLY:
1840       usage = PIPE_HANDLE_USAGE_SHADER_WRITE;
1841       break;
1842    default:
1843       usage = 0;
1844    }
1845
1846    memset(&whandle, 0, sizeof(whandle));
1847    whandle.type = WINSYS_HANDLE_TYPE_FD;
1848
1849    success = screen->resource_get_handle(screen, st->pipe, res, &whandle,
1850                                          usage);
1851    simple_mtx_unlock(&ctx->Shared->Mutex);
1852
1853    if (!success)
1854       return MESA_GLINTEROP_OUT_OF_HOST_MEMORY;
1855
1856    out->dmabuf_fd = whandle.handle;
1857    out->out_driver_data_written = 0;
1858
1859    if (res->target == PIPE_BUFFER)
1860       out->buf_offset += whandle.offset;
1861
1862    /* Instruct the caller that we support up-to version one of the interface */
1863    in->version = 1;
1864    out->version = 1;
1865
1866    return MESA_GLINTEROP_SUCCESS;
1867 }
1868
1869 static const __DRI2interopExtension dri2InteropExtension = {
1870    .base = { __DRI2_INTEROP, 1 },
1871    .query_device_info = dri2_interop_query_device_info,
1872    .export_object = dri2_interop_export_object
1873 };
1874
1875 /**
1876  * \brief the DRI2bufferDamageExtension set_damage_region method
1877  */
1878 static void
1879 dri2_set_damage_region(__DRIdrawable *dPriv, unsigned int nrects, int *rects)
1880 {
1881    struct dri_drawable *drawable = dri_drawable(dPriv);
1882    struct pipe_box *boxes = NULL;
1883
1884    if (nrects) {
1885       boxes = CALLOC(nrects, sizeof(*boxes));
1886       assert(boxes);
1887
1888       for (unsigned int i = 0; i < nrects; i++) {
1889          int *rect = &rects[i * 4];
1890
1891          u_box_2d(rect[0], rect[1], rect[2], rect[3], &boxes[i]);
1892       }
1893    }
1894
1895    FREE(drawable->damage_rects);
1896    drawable->damage_rects = boxes;
1897    drawable->num_damage_rects = nrects;
1898
1899    /* Only apply the damage region if the BACK_LEFT texture is up-to-date. */
1900    if (drawable->texture_stamp == drawable->dPriv->lastStamp &&
1901        (drawable->texture_mask & (1 << ST_ATTACHMENT_BACK_LEFT))) {
1902       struct pipe_screen *screen = drawable->screen->base.screen;
1903       struct pipe_resource *resource;
1904
1905       if (drawable->stvis.samples > 1)
1906          resource = drawable->msaa_textures[ST_ATTACHMENT_BACK_LEFT];
1907       else
1908          resource = drawable->textures[ST_ATTACHMENT_BACK_LEFT];
1909
1910       screen->set_damage_region(screen, resource,
1911                                 drawable->num_damage_rects,
1912                                 drawable->damage_rects);
1913    }
1914 }
1915
1916 static __DRI2bufferDamageExtension dri2BufferDamageExtension = {
1917    .base = { __DRI2_BUFFER_DAMAGE, 1 },
1918 };
1919
1920 /**
1921  * \brief the DRI2ConfigQueryExtension configQueryb method
1922  */
1923 static int
1924 dri2GalliumConfigQueryb(__DRIscreen *sPriv, const char *var,
1925                         unsigned char *val)
1926 {
1927    struct dri_screen *screen = dri_screen(sPriv);
1928
1929    if (!driCheckOption(&screen->dev->option_cache, var, DRI_BOOL))
1930       return dri2ConfigQueryExtension.configQueryb(sPriv, var, val);
1931
1932    *val = driQueryOptionb(&screen->dev->option_cache, var);
1933
1934    return 0;
1935 }
1936
1937 /**
1938  * \brief the DRI2ConfigQueryExtension configQueryi method
1939  */
1940 static int
1941 dri2GalliumConfigQueryi(__DRIscreen *sPriv, const char *var, int *val)
1942 {
1943    struct dri_screen *screen = dri_screen(sPriv);
1944
1945    if (!driCheckOption(&screen->dev->option_cache, var, DRI_INT) &&
1946        !driCheckOption(&screen->dev->option_cache, var, DRI_ENUM))
1947       return dri2ConfigQueryExtension.configQueryi(sPriv, var, val);
1948
1949     *val = driQueryOptioni(&screen->dev->option_cache, var);
1950
1951     return 0;
1952 }
1953
1954 /**
1955  * \brief the DRI2ConfigQueryExtension configQueryf method
1956  */
1957 static int
1958 dri2GalliumConfigQueryf(__DRIscreen *sPriv, const char *var, float *val)
1959 {
1960    struct dri_screen *screen = dri_screen(sPriv);
1961
1962    if (!driCheckOption(&screen->dev->option_cache, var, DRI_FLOAT))
1963       return dri2ConfigQueryExtension.configQueryf(sPriv, var, val);
1964
1965     *val = driQueryOptionf(&screen->dev->option_cache, var);
1966
1967     return 0;
1968 }
1969
1970 /**
1971  * \brief the DRI2ConfigQueryExtension struct.
1972  *
1973  * We first query the driver option cache. Then the dri2 option cache.
1974  */
1975 static const __DRI2configQueryExtension dri2GalliumConfigQueryExtension = {
1976    .base = { __DRI2_CONFIG_QUERY, 1 },
1977
1978    .configQueryb        = dri2GalliumConfigQueryb,
1979    .configQueryi        = dri2GalliumConfigQueryi,
1980    .configQueryf        = dri2GalliumConfigQueryf,
1981 };
1982
1983 /**
1984  * \brief the DRI2blobExtension set_cache_funcs method
1985  */
1986 static void
1987 set_blob_cache_funcs(__DRIscreen *sPriv, __DRIblobCacheSet set,
1988                      __DRIblobCacheGet get)
1989 {
1990    struct dri_screen *screen = dri_screen(sPriv);
1991    struct pipe_screen *pscreen = screen->base.screen;
1992
1993    if (!pscreen->get_disk_shader_cache)
1994       return;
1995
1996    struct disk_cache *cache = pscreen->get_disk_shader_cache(pscreen);
1997
1998    if (!cache)
1999       return;
2000
2001    disk_cache_set_callbacks(cache, set, get);
2002 }
2003
2004 static const __DRI2blobExtension driBlobExtension = {
2005    .base = { __DRI2_BLOB, 1 },
2006    .set_cache_funcs = set_blob_cache_funcs
2007 };
2008
2009 /*
2010  * Backend function init_screen.
2011  */
2012
2013 static const __DRIextension *dri_screen_extensions[] = {
2014    &driTexBufferExtension.base,
2015    &dri2FlushExtension.base,
2016    &dri2ImageExtension.base,
2017    &dri2RendererQueryExtension.base,
2018    &dri2GalliumConfigQueryExtension.base,
2019    &dri2ThrottleExtension.base,
2020    &dri2FenceExtension.base,
2021    &dri2BufferDamageExtension.base,
2022    &dri2InteropExtension.base,
2023    &dri2NoErrorExtension.base,
2024    &driBlobExtension.base,
2025    NULL
2026 };
2027
2028 static const __DRIextension *dri_robust_screen_extensions[] = {
2029    &driTexBufferExtension.base,
2030    &dri2FlushExtension.base,
2031    &dri2ImageExtension.base,
2032    &dri2RendererQueryExtension.base,
2033    &dri2GalliumConfigQueryExtension.base,
2034    &dri2ThrottleExtension.base,
2035    &dri2FenceExtension.base,
2036    &dri2InteropExtension.base,
2037    &dri2BufferDamageExtension.base,
2038    &dri2Robustness.base,
2039    &dri2NoErrorExtension.base,
2040    &driBlobExtension.base,
2041    NULL
2042 };
2043
2044 /**
2045  * This is the driver specific part of the createNewScreen entry point.
2046  *
2047  * Returns the struct gl_config supported by this driver.
2048  */
2049 static const __DRIconfig **
2050 dri2_init_screen(__DRIscreen * sPriv)
2051 {
2052    const __DRIconfig **configs;
2053    struct dri_screen *screen;
2054    struct pipe_screen *pscreen = NULL;
2055
2056    screen = CALLOC_STRUCT(dri_screen);
2057    if (!screen)
2058       return NULL;
2059
2060    screen->sPriv = sPriv;
2061    screen->fd = sPriv->fd;
2062    (void) mtx_init(&screen->opencl_func_mutex, mtx_plain);
2063
2064    sPriv->driverPrivate = (void *)screen;
2065
2066    if (pipe_loader_drm_probe_fd(&screen->dev, screen->fd)) {
2067       dri_init_options(screen);
2068
2069       pscreen = pipe_loader_create_screen(screen->dev);
2070    }
2071
2072    if (!pscreen)
2073        goto release_pipe;
2074
2075    screen->throttle = pscreen->get_param(pscreen, PIPE_CAP_THROTTLE);
2076
2077    if (pscreen->resource_create_with_modifiers)
2078       dri2ImageExtension.createImageWithModifiers =
2079          dri2_create_image_with_modifiers;
2080
2081    if (pscreen->get_param(pscreen, PIPE_CAP_DMABUF)) {
2082       uint64_t cap;
2083
2084       if (drmGetCap(sPriv->fd, DRM_CAP_PRIME, &cap) == 0 &&
2085           (cap & DRM_PRIME_CAP_IMPORT)) {
2086          dri2ImageExtension.createImageFromFds = dri2_from_fds;
2087          dri2ImageExtension.createImageFromDmaBufs = dri2_from_dma_bufs;
2088          dri2ImageExtension.createImageFromDmaBufs2 = dri2_from_dma_bufs2;
2089          if (pscreen->query_dmabuf_modifiers) {
2090             dri2ImageExtension.queryDmaBufFormats = dri2_query_dma_buf_formats;
2091             dri2ImageExtension.queryDmaBufModifiers =
2092                                        dri2_query_dma_buf_modifiers;
2093             dri2ImageExtension.queryDmaBufFormatModifierAttribs =
2094                                        dri2_query_dma_buf_format_modifier_attribs;
2095          }
2096       }
2097    }
2098
2099    if (pscreen->set_damage_region)
2100       dri2BufferDamageExtension.set_damage_region = dri2_set_damage_region;
2101
2102    if (pscreen->get_param(pscreen, PIPE_CAP_DEVICE_RESET_STATUS_QUERY)) {
2103       sPriv->extensions = dri_robust_screen_extensions;
2104       screen->has_reset_status_query = true;
2105    }
2106    else
2107       sPriv->extensions = dri_screen_extensions;
2108
2109    configs = dri_init_screen_helper(screen, pscreen);
2110    if (!configs)
2111       goto destroy_screen;
2112
2113    screen->can_share_buffer = true;
2114    screen->auto_fake_front = dri_with_format(sPriv);
2115    screen->broken_invalidate = !sPriv->dri2.useInvalidate;
2116    screen->lookup_egl_image = dri2_lookup_egl_image;
2117
2118    return configs;
2119
2120 destroy_screen:
2121    dri_destroy_screen_helper(screen);
2122
2123 release_pipe:
2124    if (screen->dev)
2125       pipe_loader_release(&screen->dev, 1);
2126
2127    FREE(screen);
2128    return NULL;
2129 }
2130
2131 /**
2132  * This is the driver specific part of the createNewScreen entry point.
2133  *
2134  * Returns the struct gl_config supported by this driver.
2135  */
2136 static const __DRIconfig **
2137 dri_kms_init_screen(__DRIscreen * sPriv)
2138 {
2139 #if defined(GALLIUM_SOFTPIPE)
2140    const __DRIconfig **configs;
2141    struct dri_screen *screen;
2142    struct pipe_screen *pscreen = NULL;
2143    uint64_t cap;
2144
2145    screen = CALLOC_STRUCT(dri_screen);
2146    if (!screen)
2147       return NULL;
2148
2149    screen->sPriv = sPriv;
2150    screen->fd = sPriv->fd;
2151
2152    sPriv->driverPrivate = (void *)screen;
2153
2154    if (pipe_loader_sw_probe_kms(&screen->dev, screen->fd)) {
2155       dri_init_options(screen);
2156       pscreen = pipe_loader_create_screen(screen->dev);
2157    }
2158
2159    if (!pscreen)
2160        goto release_pipe;
2161
2162    if (pscreen->resource_create_with_modifiers)
2163       dri2ImageExtension.createImageWithModifiers =
2164          dri2_create_image_with_modifiers;
2165
2166    if (drmGetCap(sPriv->fd, DRM_CAP_PRIME, &cap) == 0 &&
2167           (cap & DRM_PRIME_CAP_IMPORT)) {
2168       dri2ImageExtension.createImageFromFds = dri2_from_fds;
2169       dri2ImageExtension.createImageFromDmaBufs = dri2_from_dma_bufs;
2170       dri2ImageExtension.createImageFromDmaBufs2 = dri2_from_dma_bufs2;
2171       if (pscreen->query_dmabuf_modifiers) {
2172          dri2ImageExtension.queryDmaBufFormats = dri2_query_dma_buf_formats;
2173          dri2ImageExtension.queryDmaBufModifiers = dri2_query_dma_buf_modifiers;
2174       }
2175    }
2176
2177    sPriv->extensions = dri_screen_extensions;
2178
2179    configs = dri_init_screen_helper(screen, pscreen);
2180    if (!configs)
2181       goto destroy_screen;
2182
2183    screen->can_share_buffer = false;
2184    screen->auto_fake_front = dri_with_format(sPriv);
2185    screen->broken_invalidate = !sPriv->dri2.useInvalidate;
2186    screen->lookup_egl_image = dri2_lookup_egl_image;
2187
2188    return configs;
2189
2190 destroy_screen:
2191    dri_destroy_screen_helper(screen);
2192
2193 release_pipe:
2194    if (screen->dev)
2195       pipe_loader_release(&screen->dev, 1);
2196
2197    FREE(screen);
2198 #endif // GALLIUM_SOFTPIPE
2199    return NULL;
2200 }
2201
2202 static boolean
2203 dri2_create_buffer(__DRIscreen * sPriv,
2204                    __DRIdrawable * dPriv,
2205                    const struct gl_config * visual, boolean isPixmap)
2206 {
2207    struct dri_drawable *drawable = NULL;
2208
2209    if (!dri_create_buffer(sPriv, dPriv, visual, isPixmap))
2210       return FALSE;
2211
2212    drawable = dPriv->driverPrivate;
2213
2214    drawable->allocate_textures = dri2_allocate_textures;
2215    drawable->flush_frontbuffer = dri2_flush_frontbuffer;
2216    drawable->update_tex_buffer = dri2_update_tex_buffer;
2217    drawable->flush_swapbuffers = dri2_flush_swapbuffers;
2218
2219    return TRUE;
2220 }
2221
2222 /**
2223  * DRI driver virtual function table.
2224  *
2225  * DRI versions differ in their implementation of init_screen and swap_buffers.
2226  */
2227 const struct __DriverAPIRec galliumdrm_driver_api = {
2228    .InitScreen = dri2_init_screen,
2229    .DestroyScreen = dri_destroy_screen,
2230    .CreateContext = dri_create_context,
2231    .DestroyContext = dri_destroy_context,
2232    .CreateBuffer = dri2_create_buffer,
2233    .DestroyBuffer = dri_destroy_buffer,
2234    .MakeCurrent = dri_make_current,
2235    .UnbindContext = dri_unbind_context,
2236
2237    .AllocateBuffer = dri2_allocate_buffer,
2238    .ReleaseBuffer  = dri2_release_buffer,
2239 };
2240
2241 /**
2242  * DRI driver virtual function table.
2243  *
2244  * KMS/DRM version of the DriverAPI above sporting a different InitScreen
2245  * hook. The latter is used to explicitly initialise the kms_swrast driver
2246  * rather than selecting the approapriate driver as suggested by the loader.
2247  */
2248 const struct __DriverAPIRec dri_kms_driver_api = {
2249    .InitScreen = dri_kms_init_screen,
2250    .DestroyScreen = dri_destroy_screen,
2251    .CreateContext = dri_create_context,
2252    .DestroyContext = dri_destroy_context,
2253    .CreateBuffer = dri2_create_buffer,
2254    .DestroyBuffer = dri_destroy_buffer,
2255    .MakeCurrent = dri_make_current,
2256    .UnbindContext = dri_unbind_context,
2257
2258    .AllocateBuffer = dri2_allocate_buffer,
2259    .ReleaseBuffer  = dri2_release_buffer,
2260 };
2261
2262 /* This is the table of extensions that the loader will dlsym() for. */
2263 const __DRIextension *galliumdrm_driver_extensions[] = {
2264     &driCoreExtension.base,
2265     &driImageDriverExtension.base,
2266     &driDRI2Extension.base,
2267     &gallium_config_options.base,
2268     NULL
2269 };
2270
2271 /* vim: set sw=3 ts=8 sts=3 expandtab: */