src/gallium/frontends/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 "frontend/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 gallium frontend (and
 598                 * therefore the app) can access the MSAA resources only.
 599                 * The single-sample resources are not exposed
 600                 * to the gallium frontend.
 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 GL gallium frontend 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.next = img->texture;
 780       templ.width0 = width >> map->planes[i].width_shift;
 781       templ.height0 = height >> map->planes[i].height_shift;
 782       if (use_lowered)
 783          templ.format = dri2_get_pipe_format_for_dri_format(map->planes[i].dri_format);
 784       else
 785          templ.format = map->pipe_format;
 786       assert(templ.format != PIPE_FORMAT_NONE);
 787
 788       tex = pscreen->resource_from_handle(pscreen,
 789                &templ, &whandle[use_lowered ? map->planes[i].buffer_index : i],
 790                PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE);
 791       if (!tex) {
 792          pipe_resource_reference(&img->texture, NULL);
 793          FREE(img);
 794          return NULL;
 795       }
 796
 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_GEN12_RC_CCS:
 851    case I915_FORMAT_MOD_Y_TILED_CCS:
 852       return 2;
 853    case DRM_FORMAT_MOD_ARM_16X16_BLOCK_U_INTERLEAVED:
 854    case DRM_FORMAT_MOD_ARM_AFBC(
 855                         AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |
 856                         AFBC_FORMAT_MOD_SPARSE |
 857                         AFBC_FORMAT_MOD_YTR):
 858    case DRM_FORMAT_MOD_ARM_AFBC(
 859                         AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |
 860                         AFBC_FORMAT_MOD_SPARSE):
 861    case DRM_FORMAT_MOD_BROADCOM_UIF:
 862    case DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED:
 863    case DRM_FORMAT_MOD_LINEAR:
 864    /* DRM_FORMAT_MOD_NONE is the same as LINEAR */
 865    case DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_EIGHT_GOB:
 866    case DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_FOUR_GOB:
 867    case DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_ONE_GOB:
 868    case DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_SIXTEEN_GOB:
 869    case DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_THIRTYTWO_GOB:
 870    case DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_TWO_GOB:
 871    case DRM_FORMAT_MOD_QCOM_COMPRESSED:
 872    case DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED:
 873    case DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED:
 874    case DRM_FORMAT_MOD_VIVANTE_SUPER_TILED:
 875    case DRM_FORMAT_MOD_VIVANTE_TILED:
 876    /* FD_FORMAT_MOD_QCOM_TILED is not in drm_fourcc.h */
 877    case I915_FORMAT_MOD_X_TILED:
 878    case I915_FORMAT_MOD_Y_TILED:
 879    case DRM_FORMAT_MOD_INVALID:
 880       return util_format_get_num_planes(map->pipe_format);
 881    default:
 882       return 0;
 883    }
 884 }
 885
 886 static __DRIimage *
 887 dri2_create_image_from_fd(__DRIscreen *_screen,
 888                           int width, int height, int fourcc,
 889                           uint64_t modifier, int *fds, int num_fds,
 890                           int *strides, int *offsets, unsigned *error,
 891                           void *loaderPrivate)
 892 {
 893    struct winsys_handle whandles[3];
 894    const struct dri2_format_mapping *map = dri2_get_mapping_by_fourcc(fourcc);
 895    __DRIimage *img = NULL;
 896    unsigned err = __DRI_IMAGE_ERROR_SUCCESS;
 897    int i;
 898    const int expected_num_fds = dri2_get_modifier_num_planes(modifier, fourcc);
 899
 900    if (!map || expected_num_fds == 0) {
 901       err = __DRI_IMAGE_ERROR_BAD_MATCH;
 902       goto exit;
 903    }
 904
 905    if (num_fds != expected_num_fds) {
 906       err = __DRI_IMAGE_ERROR_BAD_MATCH;
 907       goto exit;
 908    }
 909
 910    memset(whandles, 0, sizeof(whandles));
 911
 912    for (i = 0; i < num_fds; i++) {
 913       if (fds[i] < 0) {
 914          err = __DRI_IMAGE_ERROR_BAD_ALLOC;
 915          goto exit;
 916       }
 917
 918       whandles[i].type = WINSYS_HANDLE_TYPE_FD;
 919       whandles[i].handle = (unsigned)fds[i];
 920       whandles[i].stride = (unsigned)strides[i];
 921       whandles[i].offset = (unsigned)offsets[i];
 922       whandles[i].format = map->pipe_format;
 923       whandles[i].modifier = modifier;
 924       whandles[i].plane = i;
 925    }
 926
 927    img = dri2_create_image_from_winsys(_screen, width, height, map,
 928                                        num_fds, whandles, loaderPrivate);
 929    if(img == NULL) {
 930       err = __DRI_IMAGE_ERROR_BAD_ALLOC;
 931       goto exit;
 932    }
 933
 934    img->dri_components = map->dri_components;
 935    img->dri_fourcc = fourcc;
 936    img->dri_format = map->dri_format;
 937    img->imported_dmabuf = TRUE;
 938
 939 exit:
 940    if (error)
 941       *error = err;
 942
 943    return img;
 944 }
 945
 946 static __DRIimage *
 947 dri2_create_image_common(__DRIscreen *_screen,
 948                          int width, int height,
 949                          int format, unsigned int use,
 950                          const uint64_t *modifiers,
 951                          const unsigned count,
 952                          void *loaderPrivate)
 953 {
 954    const struct dri2_format_mapping *map = dri2_get_mapping_by_format(format);
 955    struct dri_screen *screen = dri_screen(_screen);
 956    __DRIimage *img;
 957    struct pipe_resource templ;
 958    unsigned tex_usage;
 959
 960    if (!map)
 961       return NULL;
 962
 963    tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 964
 965    if (use & __DRI_IMAGE_USE_SCANOUT)
 966       tex_usage |= PIPE_BIND_SCANOUT;
 967    if (use & __DRI_IMAGE_USE_SHARE)
 968       tex_usage |= PIPE_BIND_SHARED;
 969    if (use & __DRI_IMAGE_USE_LINEAR)
 970       tex_usage |= PIPE_BIND_LINEAR;
 971    if (use & __DRI_IMAGE_USE_CURSOR) {
 972       if (width != 64 || height != 64)
 973          return NULL;
 974       tex_usage |= PIPE_BIND_CURSOR;
 975    }
 976
 977    img = CALLOC_STRUCT(__DRIimageRec);
 978    if (!img)
 979       return NULL;
 980
 981    memset(&templ, 0, sizeof(templ));
 982    templ.bind = tex_usage;
 983    templ.format = map->pipe_format;
 984    templ.target = PIPE_TEXTURE_2D;
 985    templ.last_level = 0;
 986    templ.width0 = width;
 987    templ.height0 = height;
 988    templ.depth0 = 1;
 989    templ.array_size = 1;
 990
 991    if (modifiers)
 992       img->texture =
 993          screen->base.screen
 994             ->resource_create_with_modifiers(screen->base.screen,
 995                                              &templ,
 996                                              modifiers,
 997                                              count);
 998    else
 999       img->texture =
1000          screen->base.screen->resource_create(screen->base.screen, &templ);
1001    if (!img->texture) {
1002       FREE(img);
1003       return NULL;
1004    }
1005
1006    img->level = 0;
1007    img->layer = 0;
1008    img->dri_format = format;
1009    img->dri_fourcc = map->dri_fourcc;
1010    img->dri_components = 0;
1011    img->use = use;
1012
1013    img->loader_private = loaderPrivate;
1014    return img;
1015 }
1016
1017 static __DRIimage *
1018 dri2_create_image(__DRIscreen *_screen,
1019                    int width, int height, int format,
1020                    unsigned int use, void *loaderPrivate)
1021 {
1022    return dri2_create_image_common(_screen, width, height, format, use,
1023                                    NULL /* modifiers */, 0 /* count */,
1024                                    loaderPrivate);
1025 }
1026
1027 static __DRIimage *
1028 dri2_create_image_with_modifiers(__DRIscreen *dri_screen,
1029                                  int width, int height, int format,
1030                                  const uint64_t *modifiers,
1031                                  const unsigned count,
1032                                  void *loaderPrivate)
1033 {
1034    return dri2_create_image_common(dri_screen, width, height, format,
1035                                    __DRI_IMAGE_USE_SHARE, modifiers, count,
1036                                    loaderPrivate);
1037 }
1038
1039 static bool
1040 dri2_query_image_common(__DRIimage *image, int attrib, int *value)
1041 {
1042    switch (attrib) {
1043    case __DRI_IMAGE_ATTRIB_FORMAT:
1044       *value = image->dri_format;
1045       return true;
1046    case __DRI_IMAGE_ATTRIB_WIDTH:
1047       *value = image->texture->width0;
1048       return true;
1049    case __DRI_IMAGE_ATTRIB_HEIGHT:
1050       *value = image->texture->height0;
1051       return true;
1052    case __DRI_IMAGE_ATTRIB_COMPONENTS:
1053       if (image->dri_components == 0)
1054          return false;
1055       *value = image->dri_components;
1056       return true;
1057    case __DRI_IMAGE_ATTRIB_FOURCC:
1058       if (image->dri_fourcc) {
1059          *value = image->dri_fourcc;
1060       } else {
1061          const struct dri2_format_mapping *map;
1062
1063          map = dri2_get_mapping_by_format(image->dri_format);
1064          if (!map)
1065             return false;
1066
1067          *value = map->dri_fourcc;
1068       }
1069       return true;
1070    default:
1071       return false;
1072    }
1073 }
1074
1075 static bool
1076 dri2_query_image_by_resource_handle(__DRIimage *image, int attrib, int *value)
1077 {
1078    struct pipe_screen *pscreen = image->texture->screen;
1079    struct winsys_handle whandle;
1080    unsigned usage;
1081    memset(&whandle, 0, sizeof(whandle));
1082    whandle.plane = image->plane;
1083
1084    switch (attrib) {
1085    case __DRI_IMAGE_ATTRIB_STRIDE:
1086    case __DRI_IMAGE_ATTRIB_OFFSET:
1087    case __DRI_IMAGE_ATTRIB_HANDLE:
1088       whandle.type = WINSYS_HANDLE_TYPE_KMS;
1089       break;
1090    case __DRI_IMAGE_ATTRIB_NAME:
1091       whandle.type = WINSYS_HANDLE_TYPE_SHARED;
1092       break;
1093    case __DRI_IMAGE_ATTRIB_FD:
1094       whandle.type = WINSYS_HANDLE_TYPE_FD;
1095       break;
1096    case __DRI_IMAGE_ATTRIB_NUM_PLANES:
1097       *value = 1;
1098       return true;
1099    case __DRI_IMAGE_ATTRIB_MODIFIER_UPPER:
1100    case __DRI_IMAGE_ATTRIB_MODIFIER_LOWER:
1101       whandle.type = WINSYS_HANDLE_TYPE_KMS;
1102       whandle.modifier = DRM_FORMAT_MOD_INVALID;
1103       break;
1104    default:
1105       return false;
1106    }
1107
1108    usage = PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE;
1109
1110    if (image->use & __DRI_IMAGE_USE_BACKBUFFER)
1111       usage |= PIPE_HANDLE_USAGE_EXPLICIT_FLUSH;
1112
1113    if (!pscreen->resource_get_handle(pscreen, NULL, image->texture,
1114                                      &whandle, usage))
1115       return false;
1116
1117    switch (attrib) {
1118    case __DRI_IMAGE_ATTRIB_STRIDE:
1119       *value = whandle.stride;
1120       return true;
1121    case __DRI_IMAGE_ATTRIB_OFFSET:
1122       *value = whandle.offset;
1123       return true;
1124    case __DRI_IMAGE_ATTRIB_HANDLE:
1125    case __DRI_IMAGE_ATTRIB_NAME:
1126    case __DRI_IMAGE_ATTRIB_FD:
1127       *value = whandle.handle;
1128       return true;
1129    case __DRI_IMAGE_ATTRIB_MODIFIER_UPPER:
1130       if (whandle.modifier == DRM_FORMAT_MOD_INVALID)
1131          return false;
1132       *value = (whandle.modifier >> 32) & 0xffffffff;
1133       return true;
1134    case __DRI_IMAGE_ATTRIB_MODIFIER_LOWER:
1135       if (whandle.modifier == DRM_FORMAT_MOD_INVALID)
1136          return false;
1137       *value = whandle.modifier & 0xffffffff;
1138       return true;
1139    default:
1140       return false;
1141    }
1142 }
1143
1144 static bool
1145 dri2_resource_get_param(__DRIimage *image, enum pipe_resource_param param,
1146                         unsigned handle_usage, uint64_t *value)
1147 {
1148    struct pipe_screen *pscreen = image->texture->screen;
1149    if (!pscreen->resource_get_param)
1150       return false;
1151
1152    return pscreen->resource_get_param(pscreen, NULL, image->texture,
1153                                       image->plane, 0, param, handle_usage,
1154                                       value);
1155 }
1156
1157 static bool
1158 dri2_query_image_by_resource_param(__DRIimage *image, int attrib, int *value)
1159 {
1160    enum pipe_resource_param param;
1161    uint64_t res_param;
1162    unsigned handle_usage;
1163
1164    if (!image->texture->screen->resource_get_param)
1165       return false;
1166
1167    switch (attrib) {
1168    case __DRI_IMAGE_ATTRIB_STRIDE:
1169       param = PIPE_RESOURCE_PARAM_STRIDE;
1170       break;
1171    case __DRI_IMAGE_ATTRIB_OFFSET:
1172       param = PIPE_RESOURCE_PARAM_OFFSET;
1173       break;
1174    case __DRI_IMAGE_ATTRIB_NUM_PLANES:
1175       param = PIPE_RESOURCE_PARAM_NPLANES;
1176       break;
1177    case __DRI_IMAGE_ATTRIB_MODIFIER_UPPER:
1178    case __DRI_IMAGE_ATTRIB_MODIFIER_LOWER:
1179       param = PIPE_RESOURCE_PARAM_MODIFIER;
1180       break;
1181    case __DRI_IMAGE_ATTRIB_HANDLE:
1182       param = PIPE_RESOURCE_PARAM_HANDLE_TYPE_KMS;
1183       break;
1184    case __DRI_IMAGE_ATTRIB_NAME:
1185       param = PIPE_RESOURCE_PARAM_HANDLE_TYPE_SHARED;
1186       break;
1187    case __DRI_IMAGE_ATTRIB_FD:
1188       param = PIPE_RESOURCE_PARAM_HANDLE_TYPE_FD;
1189       break;
1190    default:
1191       return false;
1192    }
1193
1194    handle_usage = PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE;
1195
1196    if (image->use & __DRI_IMAGE_USE_BACKBUFFER)
1197       handle_usage |= PIPE_HANDLE_USAGE_EXPLICIT_FLUSH;
1198
1199    if (!dri2_resource_get_param(image, param, handle_usage, &res_param))
1200       return false;
1201
1202    switch (attrib) {
1203    case __DRI_IMAGE_ATTRIB_STRIDE:
1204    case __DRI_IMAGE_ATTRIB_OFFSET:
1205    case __DRI_IMAGE_ATTRIB_NUM_PLANES:
1206       if (res_param > INT_MAX)
1207          return false;
1208       *value = (int)res_param;
1209       return true;
1210    case __DRI_IMAGE_ATTRIB_HANDLE:
1211    case __DRI_IMAGE_ATTRIB_NAME:
1212    case __DRI_IMAGE_ATTRIB_FD:
1213       if (res_param > UINT_MAX)
1214          return false;
1215       *value = (int)res_param;
1216       return true;
1217    case __DRI_IMAGE_ATTRIB_MODIFIER_UPPER:
1218       if (res_param == DRM_FORMAT_MOD_INVALID)
1219          return false;
1220       *value = (res_param >> 32) & 0xffffffff;
1221       return true;
1222    case __DRI_IMAGE_ATTRIB_MODIFIER_LOWER:
1223       if (res_param == DRM_FORMAT_MOD_INVALID)
1224          return false;
1225       *value = res_param & 0xffffffff;
1226       return true;
1227    default:
1228       return false;
1229    }
1230 }
1231
1232 static GLboolean
1233 dri2_query_image(__DRIimage *image, int attrib, int *value)
1234 {
1235    if (dri2_query_image_common(image, attrib, value))
1236       return GL_TRUE;
1237    else if (dri2_query_image_by_resource_param(image, attrib, value))
1238       return GL_TRUE;
1239    else if (dri2_query_image_by_resource_handle(image, attrib, value))
1240       return GL_TRUE;
1241    else
1242       return GL_FALSE;
1243 }
1244
1245 static __DRIimage *
1246 dri2_dup_image(__DRIimage *image, void *loaderPrivate)
1247 {
1248    __DRIimage *img;
1249
1250    img = CALLOC_STRUCT(__DRIimageRec);
1251    if (!img)
1252       return NULL;
1253
1254    img->texture = NULL;
1255    pipe_resource_reference(&img->texture, image->texture);
1256    img->level = image->level;
1257    img->layer = image->layer;
1258    img->dri_format = image->dri_format;
1259    /* This should be 0 for sub images, but dup is also used for base images. */
1260    img->dri_components = image->dri_components;
1261    img->loader_private = loaderPrivate;
1262
1263    return img;
1264 }
1265
1266 static GLboolean
1267 dri2_validate_usage(__DRIimage *image, unsigned int use)
1268 {
1269    if (!image || !image->texture)
1270       return false;
1271
1272    struct pipe_screen *screen = image->texture->screen;
1273    if (!screen->check_resource_capability)
1274       return true;
1275
1276    /* We don't want to check these:
1277     *   __DRI_IMAGE_USE_SHARE (all images are shareable)
1278     *   __DRI_IMAGE_USE_BACKBUFFER (all images support this)
1279     */
1280    unsigned bind = 0;
1281    if (use & __DRI_IMAGE_USE_SCANOUT)
1282       bind |= PIPE_BIND_SCANOUT;
1283    if (use & __DRI_IMAGE_USE_LINEAR)
1284       bind |= PIPE_BIND_LINEAR;
1285    if (use & __DRI_IMAGE_USE_CURSOR)
1286       bind |= PIPE_BIND_CURSOR;
1287
1288    if (!bind)
1289       return true;
1290
1291    return screen->check_resource_capability(screen, image->texture, bind);
1292 }
1293
1294 static __DRIimage *
1295 dri2_from_names(__DRIscreen *screen, int width, int height, int format,
1296                 int *names, int num_names, int *strides, int *offsets,
1297                 void *loaderPrivate)
1298 {
1299    const struct dri2_format_mapping *map = dri2_get_mapping_by_format(format);
1300    __DRIimage *img;
1301    struct winsys_handle whandle;
1302
1303    if (!map)
1304       return NULL;
1305
1306    if (num_names != 1)
1307       return NULL;
1308
1309    memset(&whandle, 0, sizeof(whandle));
1310    whandle.type = WINSYS_HANDLE_TYPE_SHARED;
1311    whandle.handle = names[0];
1312    whandle.stride = strides[0];
1313    whandle.offset = offsets[0];
1314    whandle.format = map->pipe_format;
1315    whandle.modifier = DRM_FORMAT_MOD_INVALID;
1316
1317    img = dri2_create_image_from_winsys(screen, width, height, map,
1318                                        1, &whandle, loaderPrivate);
1319    if (img == NULL)
1320       return NULL;
1321
1322    img->dri_components = map->dri_components;
1323    img->dri_fourcc = map->dri_fourcc;
1324    img->dri_format = map->pipe_format;
1325
1326    return img;
1327 }
1328
1329 static __DRIimage *
1330 dri2_from_planar(__DRIimage *image, int plane, void *loaderPrivate)
1331 {
1332    __DRIimage *img;
1333
1334    if (plane < 0) {
1335       return NULL;
1336    } else if (plane > 0) {
1337       uint64_t planes;
1338       if (!dri2_resource_get_param(image, PIPE_RESOURCE_PARAM_NPLANES, 0,
1339                                    &planes) ||
1340           plane >= planes) {
1341          return NULL;
1342       }
1343    }
1344
1345    if (image->dri_components == 0) {
1346       uint64_t modifier;
1347       if (!dri2_resource_get_param(image, PIPE_RESOURCE_PARAM_MODIFIER, 0,
1348                                    &modifier) ||
1349           modifier == DRM_FORMAT_MOD_INVALID) {
1350          return NULL;
1351       }
1352    }
1353
1354    img = dri2_dup_image(image, loaderPrivate);
1355    if (img == NULL)
1356       return NULL;
1357
1358    if (img->texture->screen->resource_changed)
1359       img->texture->screen->resource_changed(img->texture->screen,
1360                                              img->texture);
1361
1362    /* set this to 0 for sub images. */
1363    img->dri_components = 0;
1364    img->plane = plane;
1365    return img;
1366 }
1367
1368 static __DRIimage *
1369 dri2_from_fds(__DRIscreen *screen, int width, int height, int fourcc,
1370               int *fds, int num_fds, int *strides, int *offsets,
1371               void *loaderPrivate)
1372 {
1373    return dri2_create_image_from_fd(screen, width, height, fourcc,
1374                                    DRM_FORMAT_MOD_INVALID, fds, num_fds,
1375                                    strides, offsets, NULL, loaderPrivate);
1376 }
1377
1378 static boolean
1379 dri2_query_dma_buf_modifiers(__DRIscreen *_screen, int fourcc, int max,
1380                              uint64_t *modifiers, unsigned int *external_only,
1381                              int *count)
1382 {
1383    struct dri_screen *screen = dri_screen(_screen);
1384    struct pipe_screen *pscreen = screen->base.screen;
1385    const struct dri2_format_mapping *map = dri2_get_mapping_by_fourcc(fourcc);
1386    enum pipe_format format;
1387
1388    if (!map)
1389       return false;
1390
1391    format = map->pipe_format;
1392
1393    if (pscreen->is_format_supported(pscreen, format, screen->target, 0, 0,
1394                                      PIPE_BIND_RENDER_TARGET) ||
1395         pscreen->is_format_supported(pscreen, format, screen->target, 0, 0,
1396                                      PIPE_BIND_SAMPLER_VIEW) ||
1397         dri2_yuv_dma_buf_supported(screen, map)) {
1398       if (pscreen->query_dmabuf_modifiers != NULL)
1399          pscreen->query_dmabuf_modifiers(pscreen, format, max, modifiers,
1400                                          external_only, count);
1401       else
1402          *count = 0;
1403       return true;
1404    }
1405    return false;
1406 }
1407
1408 static boolean
1409 dri2_query_dma_buf_format_modifier_attribs(__DRIscreen *_screen,
1410                                            uint32_t fourcc, uint64_t modifier,
1411                                            int attrib, uint64_t *value)
1412 {
1413    struct dri_screen *screen = dri_screen(_screen);
1414    struct pipe_screen *pscreen = screen->base.screen;
1415
1416    if (!pscreen->query_dmabuf_modifiers)
1417       return false;
1418
1419    switch (attrib) {
1420    case __DRI_IMAGE_FORMAT_MODIFIER_ATTRIB_PLANE_COUNT: {
1421       uint64_t mod_planes = dri2_get_modifier_num_planes(modifier, fourcc);
1422       if (mod_planes > 0)
1423          *value = mod_planes;
1424       return mod_planes > 0;
1425    }
1426    default:
1427       return false;
1428    }
1429 }
1430
1431 static __DRIimage *
1432 dri2_from_dma_bufs(__DRIscreen *screen,
1433                    int width, int height, int fourcc,
1434                    int *fds, int num_fds,
1435                    int *strides, int *offsets,
1436                    enum __DRIYUVColorSpace yuv_color_space,
1437                    enum __DRISampleRange sample_range,
1438                    enum __DRIChromaSiting horizontal_siting,
1439                    enum __DRIChromaSiting vertical_siting,
1440                    unsigned *error,
1441                    void *loaderPrivate)
1442 {
1443    __DRIimage *img;
1444
1445    img = dri2_create_image_from_fd(screen, width, height, fourcc,
1446                                    DRM_FORMAT_MOD_INVALID, fds, num_fds,
1447                                    strides, offsets, error, loaderPrivate);
1448    if (img == NULL)
1449       return NULL;
1450
1451    img->yuv_color_space = yuv_color_space;
1452    img->sample_range = sample_range;
1453    img->horizontal_siting = horizontal_siting;
1454    img->vertical_siting = vertical_siting;
1455
1456    *error = __DRI_IMAGE_ERROR_SUCCESS;
1457    return img;
1458 }
1459
1460 static __DRIimage *
1461 dri2_from_dma_bufs2(__DRIscreen *screen,
1462                     int width, int height, int fourcc,
1463                     uint64_t modifier, int *fds, int num_fds,
1464                     int *strides, int *offsets,
1465                     enum __DRIYUVColorSpace yuv_color_space,
1466                     enum __DRISampleRange sample_range,
1467                     enum __DRIChromaSiting horizontal_siting,
1468                     enum __DRIChromaSiting vertical_siting,
1469                     unsigned *error,
1470                     void *loaderPrivate)
1471 {
1472    __DRIimage *img;
1473
1474    img = dri2_create_image_from_fd(screen, width, height, fourcc,
1475                                    modifier, fds, num_fds, strides, offsets,
1476                                    error, loaderPrivate);
1477    if (img == NULL)
1478       return NULL;
1479
1480    img->yuv_color_space = yuv_color_space;
1481    img->sample_range = sample_range;
1482    img->horizontal_siting = horizontal_siting;
1483    img->vertical_siting = vertical_siting;
1484
1485    *error = __DRI_IMAGE_ERROR_SUCCESS;
1486    return img;
1487 }
1488
1489 static void
1490 dri2_blit_image(__DRIcontext *context, __DRIimage *dst, __DRIimage *src,
1491                 int dstx0, int dsty0, int dstwidth, int dstheight,
1492                 int srcx0, int srcy0, int srcwidth, int srcheight,
1493                 int flush_flag)
1494 {
1495    struct dri_context *ctx = dri_context(context);
1496    struct pipe_context *pipe = ctx->st->pipe;
1497    struct pipe_screen *screen;
1498    struct pipe_fence_handle *fence;
1499    struct pipe_blit_info blit;
1500
1501    if (!dst || !src)
1502       return;
1503
1504    memset(&blit, 0, sizeof(blit));
1505    blit.dst.resource = dst->texture;
1506    blit.dst.box.x = dstx0;
1507    blit.dst.box.y = dsty0;
1508    blit.dst.box.width = dstwidth;
1509    blit.dst.box.height = dstheight;
1510    blit.dst.box.depth = 1;
1511    blit.dst.format = dst->texture->format;
1512    blit.src.resource = src->texture;
1513    blit.src.box.x = srcx0;
1514    blit.src.box.y = srcy0;
1515    blit.src.box.width = srcwidth;
1516    blit.src.box.height = srcheight;
1517    blit.src.box.depth = 1;
1518    blit.src.format = src->texture->format;
1519    blit.mask = PIPE_MASK_RGBA;
1520    blit.filter = PIPE_TEX_FILTER_NEAREST;
1521
1522    pipe->blit(pipe, &blit);
1523
1524    if (flush_flag == __BLIT_FLAG_FLUSH) {
1525       pipe->flush_resource(pipe, dst->texture);
1526       ctx->st->flush(ctx->st, 0, NULL, NULL, NULL);
1527    } else if (flush_flag == __BLIT_FLAG_FINISH) {
1528       screen = dri_screen(ctx->sPriv)->base.screen;
1529       pipe->flush_resource(pipe, dst->texture);
1530       ctx->st->flush(ctx->st, 0, &fence, NULL, NULL);
1531       (void) screen->fence_finish(screen, NULL, fence, PIPE_TIMEOUT_INFINITE);
1532       screen->fence_reference(screen, &fence, NULL);
1533    }
1534 }
1535
1536 static void *
1537 dri2_map_image(__DRIcontext *context, __DRIimage *image,
1538                 int x0, int y0, int width, int height,
1539                 unsigned int flags, int *stride, void **data)
1540 {
1541    struct dri_context *ctx = dri_context(context);
1542    struct pipe_context *pipe = ctx->st->pipe;
1543    enum pipe_transfer_usage pipe_access = 0;
1544    struct pipe_resource *resource = image->texture;
1545    struct pipe_transfer *trans;
1546    void *map;
1547
1548    if (!image || !data || *data)
1549       return NULL;
1550
1551    unsigned plane = image->plane;
1552    if (plane >= dri2_get_mapping_by_format(image->dri_format)->nplanes)
1553       return NULL;
1554
1555    while (plane--)
1556       resource = resource->next;
1557
1558    if (flags & __DRI_IMAGE_TRANSFER_READ)
1559          pipe_access |= PIPE_TRANSFER_READ;
1560    if (flags & __DRI_IMAGE_TRANSFER_WRITE)
1561          pipe_access |= PIPE_TRANSFER_WRITE;
1562
1563    map = pipe_transfer_map(pipe, resource, 0, 0, pipe_access, x0, y0,
1564                            width, height, &trans);
1565    if (map) {
1566       *data = trans;
1567       *stride = trans->stride;
1568    }
1569
1570    return map;
1571 }
1572
1573 static void
1574 dri2_unmap_image(__DRIcontext *context, __DRIimage *image, void *data)
1575 {
1576    struct dri_context *ctx = dri_context(context);
1577    struct pipe_context *pipe = ctx->st->pipe;
1578
1579    pipe_transfer_unmap(pipe, (struct pipe_transfer *)data);
1580 }
1581
1582 static int
1583 dri2_get_capabilities(__DRIscreen *_screen)
1584 {
1585    struct dri_screen *screen = dri_screen(_screen);
1586
1587    return (screen->can_share_buffer ? __DRI_IMAGE_CAP_GLOBAL_NAMES : 0);
1588 }
1589
1590 /* The extension is modified during runtime if DRI_PRIME is detected */
1591 static __DRIimageExtension dri2ImageExtension = {
1592     .base = { __DRI_IMAGE, 17 },
1593
1594     .createImageFromName          = dri2_create_image_from_name,
1595     .createImageFromRenderbuffer  = dri2_create_image_from_renderbuffer,
1596     .destroyImage                 = dri2_destroy_image,
1597     .createImage                  = dri2_create_image,
1598     .queryImage                   = dri2_query_image,
1599     .dupImage                     = dri2_dup_image,
1600     .validateUsage                = dri2_validate_usage,
1601     .createImageFromNames         = dri2_from_names,
1602     .fromPlanar                   = dri2_from_planar,
1603     .createImageFromTexture       = dri2_create_from_texture,
1604     .createImageFromFds           = NULL,
1605     .createImageFromDmaBufs       = NULL,
1606     .blitImage                    = dri2_blit_image,
1607     .getCapabilities              = dri2_get_capabilities,
1608     .mapImage                     = dri2_map_image,
1609     .unmapImage                   = dri2_unmap_image,
1610     .createImageWithModifiers     = NULL,
1611     .createImageFromDmaBufs2      = NULL,
1612     .queryDmaBufFormats           = NULL,
1613     .queryDmaBufModifiers         = NULL,
1614     .queryDmaBufFormatModifierAttribs = NULL,
1615     .createImageFromRenderbuffer2 = dri2_create_image_from_renderbuffer2,
1616 };
1617
1618 static const __DRIrobustnessExtension dri2Robustness = {
1619    .base = { __DRI2_ROBUSTNESS, 1 }
1620 };
1621
1622 static int
1623 dri2_interop_query_device_info(__DRIcontext *_ctx,
1624                                struct mesa_glinterop_device_info *out)
1625 {
1626    struct pipe_screen *screen = dri_context(_ctx)->st->pipe->screen;
1627
1628    /* There is no version 0, thus we do not support it */
1629    if (out->version == 0)
1630       return MESA_GLINTEROP_INVALID_VERSION;
1631
1632    out->pci_segment_group = screen->get_param(screen, PIPE_CAP_PCI_GROUP);
1633    out->pci_bus = screen->get_param(screen, PIPE_CAP_PCI_BUS);
1634    out->pci_device = screen->get_param(screen, PIPE_CAP_PCI_DEVICE);
1635    out->pci_function = screen->get_param(screen, PIPE_CAP_PCI_FUNCTION);
1636
1637    out->vendor_id = screen->get_param(screen, PIPE_CAP_VENDOR_ID);
1638    out->device_id = screen->get_param(screen, PIPE_CAP_DEVICE_ID);
1639
1640    /* Instruct the caller that we support up-to version one of the interface */
1641    out->version = 1;
1642
1643    return MESA_GLINTEROP_SUCCESS;
1644 }
1645
1646 static int
1647 dri2_interop_export_object(__DRIcontext *_ctx,
1648                            struct mesa_glinterop_export_in *in,
1649                            struct mesa_glinterop_export_out *out)
1650 {
1651    struct st_context_iface *st = dri_context(_ctx)->st;
1652    struct pipe_screen *screen = st->pipe->screen;
1653    struct gl_context *ctx = ((struct st_context *)st)->ctx;
1654    struct pipe_resource *res = NULL;
1655    struct winsys_handle whandle;
1656    unsigned target, usage;
1657    boolean success;
1658
1659    /* There is no version 0, thus we do not support it */
1660    if (in->version == 0 || out->version == 0)
1661       return MESA_GLINTEROP_INVALID_VERSION;
1662
1663    /* Validate the target. */
1664    switch (in->target) {
1665    case GL_TEXTURE_BUFFER:
1666    case GL_TEXTURE_1D:
1667    case GL_TEXTURE_2D:
1668    case GL_TEXTURE_3D:
1669    case GL_TEXTURE_RECTANGLE:
1670    case GL_TEXTURE_1D_ARRAY:
1671    case GL_TEXTURE_2D_ARRAY:
1672    case GL_TEXTURE_CUBE_MAP_ARRAY:
1673    case GL_TEXTURE_CUBE_MAP:
1674    case GL_TEXTURE_2D_MULTISAMPLE:
1675    case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
1676    case GL_TEXTURE_EXTERNAL_OES:
1677    case GL_RENDERBUFFER:
1678    case GL_ARRAY_BUFFER:
1679       target = in->target;
1680       break;
1681    case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1682    case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1683    case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1684    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1685    case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1686    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1687       target = GL_TEXTURE_CUBE_MAP;
1688       break;
1689    default:
1690       return MESA_GLINTEROP_INVALID_TARGET;
1691    }
1692
1693    /* Validate the simple case of miplevel. */
1694    if ((target == GL_RENDERBUFFER || target == GL_ARRAY_BUFFER) &&
1695        in->miplevel != 0)
1696       return MESA_GLINTEROP_INVALID_MIP_LEVEL;
1697
1698    /* Validate the OpenGL object and get pipe_resource. */
1699    simple_mtx_lock(&ctx->Shared->Mutex);
1700
1701    if (target == GL_ARRAY_BUFFER) {
1702       /* Buffer objects.
1703        *
1704        * The error checking is based on the documentation of
1705        * clCreateFromGLBuffer from OpenCL 2.0 SDK.
1706        */
1707       struct gl_buffer_object *buf = _mesa_lookup_bufferobj(ctx, in->obj);
1708
1709       /* From OpenCL 2.0 SDK, clCreateFromGLBuffer:
1710        *  "CL_INVALID_GL_OBJECT if bufobj is not a GL buffer object or is
1711        *   a GL buffer object but does not have an existing data store or
1712        *   the size of the buffer is 0."
1713        */
1714       if (!buf || buf->Size == 0) {
1715          simple_mtx_unlock(&ctx->Shared->Mutex);
1716          return MESA_GLINTEROP_INVALID_OBJECT;
1717       }
1718
1719       res = st_buffer_object(buf)->buffer;
1720       if (!res) {
1721          /* this shouldn't happen */
1722          simple_mtx_unlock(&ctx->Shared->Mutex);
1723          return MESA_GLINTEROP_INVALID_OBJECT;
1724       }
1725
1726       out->buf_offset = 0;
1727       out->buf_size = buf->Size;
1728
1729       buf->UsageHistory |= USAGE_DISABLE_MINMAX_CACHE;
1730    } else if (target == GL_RENDERBUFFER) {
1731       /* Renderbuffers.
1732        *
1733        * The error checking is based on the documentation of
1734        * clCreateFromGLRenderbuffer from OpenCL 2.0 SDK.
1735        */
1736       struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, in->obj);
1737
1738       /* From OpenCL 2.0 SDK, clCreateFromGLRenderbuffer:
1739        *   "CL_INVALID_GL_OBJECT if renderbuffer is not a GL renderbuffer
1740        *    object or if the width or height of renderbuffer is zero."
1741        */
1742       if (!rb || rb->Width == 0 || rb->Height == 0) {
1743          simple_mtx_unlock(&ctx->Shared->Mutex);
1744          return MESA_GLINTEROP_INVALID_OBJECT;
1745       }
1746
1747       /* From OpenCL 2.0 SDK, clCreateFromGLRenderbuffer:
1748        *   "CL_INVALID_OPERATION if renderbuffer is a multi-sample GL
1749        *    renderbuffer object."
1750        */
1751       if (rb->NumSamples > 1) {
1752          simple_mtx_unlock(&ctx->Shared->Mutex);
1753          return MESA_GLINTEROP_INVALID_OPERATION;
1754       }
1755
1756       /* From OpenCL 2.0 SDK, clCreateFromGLRenderbuffer:
1757        *   "CL_OUT_OF_RESOURCES if there is a failure to allocate resources
1758        *    required by the OpenCL implementation on the device."
1759        */
1760       res = st_renderbuffer(rb)->texture;
1761       if (!res) {
1762          simple_mtx_unlock(&ctx->Shared->Mutex);
1763          return MESA_GLINTEROP_OUT_OF_RESOURCES;
1764       }
1765
1766       out->internal_format = rb->InternalFormat;
1767       out->view_minlevel = 0;
1768       out->view_numlevels = 1;
1769       out->view_minlayer = 0;
1770       out->view_numlayers = 1;
1771    } else {
1772       /* Texture objects.
1773        *
1774        * The error checking is based on the documentation of
1775        * clCreateFromGLTexture from OpenCL 2.0 SDK.
1776        */
1777       struct gl_texture_object *obj = _mesa_lookup_texture(ctx, in->obj);
1778
1779       if (obj)
1780          _mesa_test_texobj_completeness(ctx, obj);
1781
1782       /* From OpenCL 2.0 SDK, clCreateFromGLTexture:
1783        *   "CL_INVALID_GL_OBJECT if texture is not a GL texture object whose
1784        *    type matches texture_target, if the specified miplevel of texture
1785        *    is not defined, or if the width or height of the specified
1786        *    miplevel is zero or if the GL texture object is incomplete."
1787        */
1788       if (!obj ||
1789           obj->Target != target ||
1790           !obj->_BaseComplete ||
1791           (in->miplevel > 0 && !obj->_MipmapComplete)) {
1792          simple_mtx_unlock(&ctx->Shared->Mutex);
1793          return MESA_GLINTEROP_INVALID_OBJECT;
1794       }
1795
1796       if (target == GL_TEXTURE_BUFFER) {
1797          struct st_buffer_object *stBuf =
1798             st_buffer_object(obj->BufferObject);
1799
1800          if (!stBuf || !stBuf->buffer) {
1801             /* this shouldn't happen */
1802             simple_mtx_unlock(&ctx->Shared->Mutex);
1803             return MESA_GLINTEROP_INVALID_OBJECT;
1804          }
1805          res = stBuf->buffer;
1806
1807          out->internal_format = obj->BufferObjectFormat;
1808          out->buf_offset = obj->BufferOffset;
1809          out->buf_size = obj->BufferSize == -1 ? obj->BufferObject->Size :
1810                                                  obj->BufferSize;
1811
1812          obj->BufferObject->UsageHistory |= USAGE_DISABLE_MINMAX_CACHE;
1813       } else {
1814          /* From OpenCL 2.0 SDK, clCreateFromGLTexture:
1815           *   "CL_INVALID_MIP_LEVEL if miplevel is less than the value of
1816           *    levelbase (for OpenGL implementations) or zero (for OpenGL ES
1817           *    implementations); or greater than the value of q (for both OpenGL
1818           *    and OpenGL ES). levelbase and q are defined for the texture in
1819           *    section 3.8.10 (Texture Completeness) of the OpenGL 2.1
1820           *    specification and section 3.7.10 of the OpenGL ES 2.0."
1821           */
1822          if (in->miplevel < obj->BaseLevel || in->miplevel > obj->_MaxLevel) {
1823             simple_mtx_unlock(&ctx->Shared->Mutex);
1824             return MESA_GLINTEROP_INVALID_MIP_LEVEL;
1825          }
1826
1827          if (!st_finalize_texture(ctx, st->pipe, obj, 0)) {
1828             simple_mtx_unlock(&ctx->Shared->Mutex);
1829             return MESA_GLINTEROP_OUT_OF_RESOURCES;
1830          }
1831
1832          res = st_get_texobj_resource(obj);
1833          if (!res) {
1834             /* Incomplete texture buffer object? This shouldn't really occur. */
1835             simple_mtx_unlock(&ctx->Shared->Mutex);
1836             return MESA_GLINTEROP_INVALID_OBJECT;
1837          }
1838
1839          out->internal_format = obj->Image[0][0]->InternalFormat;
1840          out->view_minlevel = obj->MinLevel;
1841          out->view_numlevels = obj->NumLevels;
1842          out->view_minlayer = obj->MinLayer;
1843          out->view_numlayers = obj->NumLayers;
1844       }
1845    }
1846
1847    /* Get the handle. */
1848    switch (in->access) {
1849    case MESA_GLINTEROP_ACCESS_READ_ONLY:
1850       usage = 0;
1851       break;
1852    case MESA_GLINTEROP_ACCESS_READ_WRITE:
1853    case MESA_GLINTEROP_ACCESS_WRITE_ONLY:
1854       usage = PIPE_HANDLE_USAGE_SHADER_WRITE;
1855       break;
1856    default:
1857       usage = 0;
1858    }
1859
1860    memset(&whandle, 0, sizeof(whandle));
1861    whandle.type = WINSYS_HANDLE_TYPE_FD;
1862
1863    success = screen->resource_get_handle(screen, st->pipe, res, &whandle,
1864                                          usage);
1865    simple_mtx_unlock(&ctx->Shared->Mutex);
1866
1867    if (!success)
1868       return MESA_GLINTEROP_OUT_OF_HOST_MEMORY;
1869
1870    out->dmabuf_fd = whandle.handle;
1871    out->out_driver_data_written = 0;
1872
1873    if (res->target == PIPE_BUFFER)
1874       out->buf_offset += whandle.offset;
1875
1876    /* Instruct the caller that we support up-to version one of the interface */
1877    in->version = 1;
1878    out->version = 1;
1879
1880    return MESA_GLINTEROP_SUCCESS;
1881 }
1882
1883 static const __DRI2interopExtension dri2InteropExtension = {
1884    .base = { __DRI2_INTEROP, 1 },
1885    .query_device_info = dri2_interop_query_device_info,
1886    .export_object = dri2_interop_export_object
1887 };
1888
1889 /**
1890  * \brief the DRI2bufferDamageExtension set_damage_region method
1891  */
1892 static void
1893 dri2_set_damage_region(__DRIdrawable *dPriv, unsigned int nrects, int *rects)
1894 {
1895    struct dri_drawable *drawable = dri_drawable(dPriv);
1896    struct pipe_box *boxes = NULL;
1897
1898    if (nrects) {
1899       boxes = CALLOC(nrects, sizeof(*boxes));
1900       assert(boxes);
1901
1902       for (unsigned int i = 0; i < nrects; i++) {
1903          int *rect = &rects[i * 4];
1904
1905          u_box_2d(rect[0], rect[1], rect[2], rect[3], &boxes[i]);
1906       }
1907    }
1908
1909    FREE(drawable->damage_rects);
1910    drawable->damage_rects = boxes;
1911    drawable->num_damage_rects = nrects;
1912
1913    /* Only apply the damage region if the BACK_LEFT texture is up-to-date. */
1914    if (drawable->texture_stamp == drawable->dPriv->lastStamp &&
1915        (drawable->texture_mask & (1 << ST_ATTACHMENT_BACK_LEFT))) {
1916       struct pipe_screen *screen = drawable->screen->base.screen;
1917       struct pipe_resource *resource;
1918
1919       if (drawable->stvis.samples > 1)
1920          resource = drawable->msaa_textures[ST_ATTACHMENT_BACK_LEFT];
1921       else
1922          resource = drawable->textures[ST_ATTACHMENT_BACK_LEFT];
1923
1924       screen->set_damage_region(screen, resource,
1925                                 drawable->num_damage_rects,
1926                                 drawable->damage_rects);
1927    }
1928 }
1929
1930 static __DRI2bufferDamageExtension dri2BufferDamageExtension = {
1931    .base = { __DRI2_BUFFER_DAMAGE, 1 },
1932 };
1933
1934 /**
1935  * \brief the DRI2ConfigQueryExtension configQueryb method
1936  */
1937 static int
1938 dri2GalliumConfigQueryb(__DRIscreen *sPriv, const char *var,
1939                         unsigned char *val)
1940 {
1941    struct dri_screen *screen = dri_screen(sPriv);
1942
1943    if (!driCheckOption(&screen->dev->option_cache, var, DRI_BOOL))
1944       return dri2ConfigQueryExtension.configQueryb(sPriv, var, val);
1945
1946    *val = driQueryOptionb(&screen->dev->option_cache, var);
1947
1948    return 0;
1949 }
1950
1951 /**
1952  * \brief the DRI2ConfigQueryExtension configQueryi method
1953  */
1954 static int
1955 dri2GalliumConfigQueryi(__DRIscreen *sPriv, const char *var, int *val)
1956 {
1957    struct dri_screen *screen = dri_screen(sPriv);
1958
1959    if (!driCheckOption(&screen->dev->option_cache, var, DRI_INT) &&
1960        !driCheckOption(&screen->dev->option_cache, var, DRI_ENUM))
1961       return dri2ConfigQueryExtension.configQueryi(sPriv, var, val);
1962
1963     *val = driQueryOptioni(&screen->dev->option_cache, var);
1964
1965     return 0;
1966 }
1967
1968 /**
1969  * \brief the DRI2ConfigQueryExtension configQueryf method
1970  */
1971 static int
1972 dri2GalliumConfigQueryf(__DRIscreen *sPriv, const char *var, float *val)
1973 {
1974    struct dri_screen *screen = dri_screen(sPriv);
1975
1976    if (!driCheckOption(&screen->dev->option_cache, var, DRI_FLOAT))
1977       return dri2ConfigQueryExtension.configQueryf(sPriv, var, val);
1978
1979     *val = driQueryOptionf(&screen->dev->option_cache, var);
1980
1981     return 0;
1982 }
1983
1984 /**
1985  * \brief the DRI2ConfigQueryExtension struct.
1986  *
1987  * We first query the driver option cache. Then the dri2 option cache.
1988  */
1989 static const __DRI2configQueryExtension dri2GalliumConfigQueryExtension = {
1990    .base = { __DRI2_CONFIG_QUERY, 1 },
1991
1992    .configQueryb        = dri2GalliumConfigQueryb,
1993    .configQueryi        = dri2GalliumConfigQueryi,
1994    .configQueryf        = dri2GalliumConfigQueryf,
1995 };
1996
1997 /**
1998  * \brief the DRI2blobExtension set_cache_funcs method
1999  */
2000 static void
2001 set_blob_cache_funcs(__DRIscreen *sPriv, __DRIblobCacheSet set,
2002                      __DRIblobCacheGet get)
2003 {
2004    struct dri_screen *screen = dri_screen(sPriv);
2005    struct pipe_screen *pscreen = screen->base.screen;
2006
2007    if (!pscreen->get_disk_shader_cache)
2008       return;
2009
2010    struct disk_cache *cache = pscreen->get_disk_shader_cache(pscreen);
2011
2012    if (!cache)
2013       return;
2014
2015    disk_cache_set_callbacks(cache, set, get);
2016 }
2017
2018 static const __DRI2blobExtension driBlobExtension = {
2019    .base = { __DRI2_BLOB, 1 },
2020    .set_cache_funcs = set_blob_cache_funcs
2021 };
2022
2023 /*
2024  * Backend function init_screen.
2025  */
2026
2027 static const __DRIextension *dri_screen_extensions[] = {
2028    &driTexBufferExtension.base,
2029    &dri2FlushExtension.base,
2030    &dri2ImageExtension.base,
2031    &dri2RendererQueryExtension.base,
2032    &dri2GalliumConfigQueryExtension.base,
2033    &dri2ThrottleExtension.base,
2034    &dri2FenceExtension.base,
2035    &dri2BufferDamageExtension.base,
2036    &dri2InteropExtension.base,
2037    &dri2NoErrorExtension.base,
2038    &driBlobExtension.base,
2039    NULL
2040 };
2041
2042 static const __DRIextension *dri_robust_screen_extensions[] = {
2043    &driTexBufferExtension.base,
2044    &dri2FlushExtension.base,
2045    &dri2ImageExtension.base,
2046    &dri2RendererQueryExtension.base,
2047    &dri2GalliumConfigQueryExtension.base,
2048    &dri2ThrottleExtension.base,
2049    &dri2FenceExtension.base,
2050    &dri2InteropExtension.base,
2051    &dri2BufferDamageExtension.base,
2052    &dri2Robustness.base,
2053    &dri2NoErrorExtension.base,
2054    &driBlobExtension.base,
2055    NULL
2056 };
2057
2058 /**
2059  * This is the driver specific part of the createNewScreen entry point.
2060  *
2061  * Returns the struct gl_config supported by this driver.
2062  */
2063 static const __DRIconfig **
2064 dri2_init_screen(__DRIscreen * sPriv)
2065 {
2066    const __DRIconfig **configs;
2067    struct dri_screen *screen;
2068    struct pipe_screen *pscreen = NULL;
2069
2070    screen = CALLOC_STRUCT(dri_screen);
2071    if (!screen)
2072       return NULL;
2073
2074    screen->sPriv = sPriv;
2075    screen->fd = sPriv->fd;
2076    (void) mtx_init(&screen->opencl_func_mutex, mtx_plain);
2077
2078    sPriv->driverPrivate = (void *)screen;
2079
2080    if (pipe_loader_drm_probe_fd(&screen->dev, screen->fd)) {
2081       dri_init_options(screen);
2082
2083       pscreen = pipe_loader_create_screen(screen->dev);
2084    }
2085
2086    if (!pscreen)
2087        goto release_pipe;
2088
2089    screen->throttle = pscreen->get_param(pscreen, PIPE_CAP_THROTTLE);
2090
2091    if (pscreen->resource_create_with_modifiers)
2092       dri2ImageExtension.createImageWithModifiers =
2093          dri2_create_image_with_modifiers;
2094
2095    if (pscreen->get_param(pscreen, PIPE_CAP_DMABUF)) {
2096       uint64_t cap;
2097
2098       if (drmGetCap(sPriv->fd, DRM_CAP_PRIME, &cap) == 0 &&
2099           (cap & DRM_PRIME_CAP_IMPORT)) {
2100          dri2ImageExtension.createImageFromFds = dri2_from_fds;
2101          dri2ImageExtension.createImageFromDmaBufs = dri2_from_dma_bufs;
2102          dri2ImageExtension.createImageFromDmaBufs2 = dri2_from_dma_bufs2;
2103          dri2ImageExtension.queryDmaBufFormats = dri2_query_dma_buf_formats;
2104          dri2ImageExtension.queryDmaBufModifiers =
2105             dri2_query_dma_buf_modifiers;
2106          dri2ImageExtension.queryDmaBufFormatModifierAttribs =
2107             dri2_query_dma_buf_format_modifier_attribs;
2108       }
2109    }
2110
2111    if (pscreen->set_damage_region)
2112       dri2BufferDamageExtension.set_damage_region = dri2_set_damage_region;
2113
2114    if (pscreen->get_param(pscreen, PIPE_CAP_DEVICE_RESET_STATUS_QUERY)) {
2115       sPriv->extensions = dri_robust_screen_extensions;
2116       screen->has_reset_status_query = true;
2117    }
2118    else
2119       sPriv->extensions = dri_screen_extensions;
2120
2121    configs = dri_init_screen_helper(screen, pscreen);
2122    if (!configs)
2123       goto destroy_screen;
2124
2125    screen->can_share_buffer = true;
2126    screen->auto_fake_front = dri_with_format(sPriv);
2127    screen->broken_invalidate = !sPriv->dri2.useInvalidate;
2128    screen->lookup_egl_image = dri2_lookup_egl_image;
2129
2130    return configs;
2131
2132 destroy_screen:
2133    dri_destroy_screen_helper(screen);
2134
2135 release_pipe:
2136    if (screen->dev)
2137       pipe_loader_release(&screen->dev, 1);
2138
2139    FREE(screen);
2140    return NULL;
2141 }
2142
2143 /**
2144  * This is the driver specific part of the createNewScreen entry point.
2145  *
2146  * Returns the struct gl_config supported by this driver.
2147  */
2148 static const __DRIconfig **
2149 dri_kms_init_screen(__DRIscreen * sPriv)
2150 {
2151 #if defined(GALLIUM_SOFTPIPE)
2152    const __DRIconfig **configs;
2153    struct dri_screen *screen;
2154    struct pipe_screen *pscreen = NULL;
2155    uint64_t cap;
2156
2157    screen = CALLOC_STRUCT(dri_screen);
2158    if (!screen)
2159       return NULL;
2160
2161    screen->sPriv = sPriv;
2162    screen->fd = sPriv->fd;
2163
2164    sPriv->driverPrivate = (void *)screen;
2165
2166    if (pipe_loader_sw_probe_kms(&screen->dev, screen->fd)) {
2167       dri_init_options(screen);
2168       pscreen = pipe_loader_create_screen(screen->dev);
2169    }
2170
2171    if (!pscreen)
2172        goto release_pipe;
2173
2174    if (pscreen->resource_create_with_modifiers)
2175       dri2ImageExtension.createImageWithModifiers =
2176          dri2_create_image_with_modifiers;
2177
2178    if (drmGetCap(sPriv->fd, DRM_CAP_PRIME, &cap) == 0 &&
2179           (cap & DRM_PRIME_CAP_IMPORT)) {
2180       dri2ImageExtension.createImageFromFds = dri2_from_fds;
2181       dri2ImageExtension.createImageFromDmaBufs = dri2_from_dma_bufs;
2182       dri2ImageExtension.createImageFromDmaBufs2 = dri2_from_dma_bufs2;
2183       dri2ImageExtension.queryDmaBufFormats = dri2_query_dma_buf_formats;
2184       dri2ImageExtension.queryDmaBufModifiers = dri2_query_dma_buf_modifiers;
2185    }
2186
2187    sPriv->extensions = dri_screen_extensions;
2188
2189    configs = dri_init_screen_helper(screen, pscreen);
2190    if (!configs)
2191       goto destroy_screen;
2192
2193    screen->can_share_buffer = false;
2194    screen->auto_fake_front = dri_with_format(sPriv);
2195    screen->broken_invalidate = !sPriv->dri2.useInvalidate;
2196    screen->lookup_egl_image = dri2_lookup_egl_image;
2197
2198    return configs;
2199
2200 destroy_screen:
2201    dri_destroy_screen_helper(screen);
2202
2203 release_pipe:
2204    if (screen->dev)
2205       pipe_loader_release(&screen->dev, 1);
2206
2207    FREE(screen);
2208 #endif // GALLIUM_SOFTPIPE
2209    return NULL;
2210 }
2211
2212 static boolean
2213 dri2_create_buffer(__DRIscreen * sPriv,
2214                    __DRIdrawable * dPriv,
2215                    const struct gl_config * visual, boolean isPixmap)
2216 {
2217    struct dri_drawable *drawable = NULL;
2218
2219    if (!dri_create_buffer(sPriv, dPriv, visual, isPixmap))
2220       return FALSE;
2221
2222    drawable = dPriv->driverPrivate;
2223
2224    drawable->allocate_textures = dri2_allocate_textures;
2225    drawable->flush_frontbuffer = dri2_flush_frontbuffer;
2226    drawable->update_tex_buffer = dri2_update_tex_buffer;
2227    drawable->flush_swapbuffers = dri2_flush_swapbuffers;
2228
2229    return TRUE;
2230 }
2231
2232 /**
2233  * DRI driver virtual function table.
2234  *
2235  * DRI versions differ in their implementation of init_screen and swap_buffers.
2236  */
2237 const struct __DriverAPIRec galliumdrm_driver_api = {
2238    .InitScreen = dri2_init_screen,
2239    .DestroyScreen = dri_destroy_screen,
2240    .CreateContext = dri_create_context,
2241    .DestroyContext = dri_destroy_context,
2242    .CreateBuffer = dri2_create_buffer,
2243    .DestroyBuffer = dri_destroy_buffer,
2244    .MakeCurrent = dri_make_current,
2245    .UnbindContext = dri_unbind_context,
2246
2247    .AllocateBuffer = dri2_allocate_buffer,
2248    .ReleaseBuffer  = dri2_release_buffer,
2249 };
2250
2251 /**
2252  * DRI driver virtual function table.
2253  *
2254  * KMS/DRM version of the DriverAPI above sporting a different InitScreen
2255  * hook. The latter is used to explicitly initialise the kms_swrast driver
2256  * rather than selecting the approapriate driver as suggested by the loader.
2257  */
2258 const struct __DriverAPIRec dri_kms_driver_api = {
2259    .InitScreen = dri_kms_init_screen,
2260    .DestroyScreen = dri_destroy_screen,
2261    .CreateContext = dri_create_context,
2262    .DestroyContext = dri_destroy_context,
2263    .CreateBuffer = dri2_create_buffer,
2264    .DestroyBuffer = dri_destroy_buffer,
2265    .MakeCurrent = dri_make_current,
2266    .UnbindContext = dri_unbind_context,
2267
2268    .AllocateBuffer = dri2_allocate_buffer,
2269    .ReleaseBuffer  = dri2_release_buffer,
2270 };
2271
2272 /* This is the table of extensions that the loader will dlsym() for. */
2273 const __DRIextension *galliumdrm_driver_extensions[] = {
2274     &driCoreExtension.base,
2275     &driImageDriverExtension.base,
2276     &driDRI2Extension.base,
2277     &gallium_config_options.base,
2278     NULL
2279 };
2280
2281 /* vim: set sw=3 ts=8 sts=3 expandtab: */