src/egl/drivers/dri2/platform_android.c

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 2010-2011 Chia-I Wu <olvaffe@gmail.com>
   5  * Copyright (C) 2010-2011 LunarG Inc.
   6  *
   7  * Based on platform_x11, which has
   8  *
   9  * Copyright © 2011 Intel Corporation
  10  *
  11  * Permission is hereby granted, free of charge, to any person obtaining a
  12  * copy of this software and associated documentation files (the "Software"),
  13  * to deal in the Software without restriction, including without limitation
  14  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  15  * and/or sell copies of the Software, and to permit persons to whom the
  16  * Software is furnished to do so, subject to the following conditions:
  17  *
  18  * The above copyright notice and this permission notice shall be included
  19  * in all copies or substantial portions of the Software.
  20  *
  21  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  22  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  23  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  24  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  25  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  26  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  27  * DEALINGS IN THE SOFTWARE.
  28  */
  29
  30 #include <errno.h>
  31 #include <dlfcn.h>
  32 #include <fcntl.h>
  33 #include <xf86drm.h>
  34 #include <stdbool.h>
  35 #include <sync/sync.h>
  36
  37 #include "loader.h"
  38 #include "egl_dri2.h"
  39 #include "egl_dri2_fallbacks.h"
  40 #include "gralloc_drm.h"
  41
  42 #define ALIGN(val, align)       (((val) + (align) - 1) & ~((align) - 1))
  43
  44 struct droid_yuv_format {
  45    /* Lookup keys */
  46    int native; /* HAL_PIXEL_FORMAT_ */
  47    int is_ycrcb; /* 0 if chroma order is {Cb, Cr}, 1 if {Cr, Cb} */
  48    int chroma_step; /* Distance in bytes between subsequent chroma pixels. */
  49
  50    /* Result */
  51    int fourcc; /* __DRI_IMAGE_FOURCC_ */
  52 };
  53
  54 /* The following table is used to look up a DRI image FourCC based
  55  * on native format and information contained in android_ycbcr struct. */
  56 static const struct droid_yuv_format droid_yuv_formats[] = {
  57    /* Native format, YCrCb, Chroma step, DRI image FourCC */
  58    { HAL_PIXEL_FORMAT_YCbCr_420_888,   0, 2, __DRI_IMAGE_FOURCC_NV12 },
  59    { HAL_PIXEL_FORMAT_YCbCr_420_888,   0, 1, __DRI_IMAGE_FOURCC_YUV420 },
  60    { HAL_PIXEL_FORMAT_YCbCr_420_888,   1, 1, __DRI_IMAGE_FOURCC_YVU420 },
  61    { HAL_PIXEL_FORMAT_YV12,            1, 1, __DRI_IMAGE_FOURCC_YVU420 },
  62 };
  63
  64 static int
  65 get_fourcc_yuv(int native, int is_ycrcb, int chroma_step)
  66 {
  67    int i;
  68
  69    for (i = 0; i < ARRAY_SIZE(droid_yuv_formats); ++i)
  70       if (droid_yuv_formats[i].native == native &&
  71           droid_yuv_formats[i].is_ycrcb == is_ycrcb &&
  72           droid_yuv_formats[i].chroma_step == chroma_step)
  73          return droid_yuv_formats[i].fourcc;
  74
  75    return -1;
  76 }
  77
  78 static bool
  79 is_yuv(int native)
  80 {
  81    int i;
  82
  83    for (i = 0; i < ARRAY_SIZE(droid_yuv_formats); ++i)
  84       if (droid_yuv_formats[i].native == native)
  85          return true;
  86
  87    return false;
  88 }
  89
  90 static int
  91 get_format_bpp(int native)
  92 {
  93    int bpp;
  94
  95    switch (native) {
  96    case HAL_PIXEL_FORMAT_RGBA_8888:
  97    case HAL_PIXEL_FORMAT_RGBX_8888:
  98    case HAL_PIXEL_FORMAT_BGRA_8888:
  99       bpp = 4;
 100       break;
 101    case HAL_PIXEL_FORMAT_RGB_565:
 102       bpp = 2;
 103       break;
 104    default:
 105       bpp = 0;
 106       break;
 107    }
 108
 109    return bpp;
 110 }
 111
 112 /* createImageFromFds requires fourcc format */
 113 static int get_fourcc(int native)
 114 {
 115    switch (native) {
 116    case HAL_PIXEL_FORMAT_RGB_565:   return __DRI_IMAGE_FOURCC_RGB565;
 117    case HAL_PIXEL_FORMAT_BGRA_8888: return __DRI_IMAGE_FOURCC_ARGB8888;
 118    case HAL_PIXEL_FORMAT_RGBA_8888: return __DRI_IMAGE_FOURCC_ABGR8888;
 119    case HAL_PIXEL_FORMAT_RGBX_8888: return __DRI_IMAGE_FOURCC_XBGR8888;
 120    default:
 121       _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", native);
 122    }
 123    return -1;
 124 }
 125
 126 static int get_format(int format)
 127 {
 128    switch (format) {
 129    case HAL_PIXEL_FORMAT_BGRA_8888: return __DRI_IMAGE_FORMAT_ARGB8888;
 130    case HAL_PIXEL_FORMAT_RGB_565:   return __DRI_IMAGE_FORMAT_RGB565;
 131    case HAL_PIXEL_FORMAT_RGBA_8888: return __DRI_IMAGE_FORMAT_ABGR8888;
 132    case HAL_PIXEL_FORMAT_RGBX_8888: return __DRI_IMAGE_FORMAT_XBGR8888;
 133    default:
 134       _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", format);
 135    }
 136    return -1;
 137 }
 138
 139 static int
 140 get_native_buffer_fd(struct ANativeWindowBuffer *buf)
 141 {
 142    native_handle_t *handle = (native_handle_t *)buf->handle;
 143    /*
 144     * Various gralloc implementations exist, but the dma-buf fd tends
 145     * to be first. Access it directly to avoid a dependency on specific
 146     * gralloc versions.
 147     */
 148    return (handle && handle->numFds) ? handle->data[0] : -1;
 149 }
 150
 151 static int
 152 get_native_buffer_name(struct ANativeWindowBuffer *buf)
 153 {
 154    return gralloc_drm_get_gem_handle(buf->handle);
 155 }
 156
 157 static EGLBoolean
 158 droid_window_dequeue_buffer(struct dri2_egl_surface *dri2_surf)
 159 {
 160    int fence_fd;
 161
 162    if (dri2_surf->window->dequeueBuffer(dri2_surf->window, &dri2_surf->buffer,
 163                                         &fence_fd))
 164       return EGL_FALSE;
 165
 166    /* If access to the buffer is controlled by a sync fence, then block on the
 167     * fence.
 168     *
 169     * It may be more performant to postpone blocking until there is an
 170     * immediate need to write to the buffer. But doing so would require adding
 171     * hooks to the DRI2 loader.
 172     *
 173     * From the ANativeWindow::dequeueBuffer documentation:
 174     *
 175     *    The libsync fence file descriptor returned in the int pointed to by
 176     *    the fenceFd argument will refer to the fence that must signal
 177     *    before the dequeued buffer may be written to.  A value of -1
 178     *    indicates that the caller may access the buffer immediately without
 179     *    waiting on a fence.  If a valid file descriptor is returned (i.e.
 180     *    any value except -1) then the caller is responsible for closing the
 181     *    file descriptor.
 182     */
 183     if (fence_fd >= 0) {
 184        /* From the SYNC_IOC_WAIT documentation in <linux/sync.h>:
 185         *
 186         *    Waits indefinitely if timeout < 0.
 187         */
 188         int timeout = -1;
 189         sync_wait(fence_fd, timeout);
 190         close(fence_fd);
 191    }
 192
 193    dri2_surf->buffer->common.incRef(&dri2_surf->buffer->common);
 194
 195    /* Record all the buffers created by ANativeWindow and update back buffer
 196     * for updating buffer's age in swap_buffers.
 197     */
 198    EGLBoolean updated = EGL_FALSE;
 199    for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
 200       if (!dri2_surf->color_buffers[i].buffer) {
 201          dri2_surf->color_buffers[i].buffer = dri2_surf->buffer;
 202       }
 203       if (dri2_surf->color_buffers[i].buffer == dri2_surf->buffer) {
 204          dri2_surf->back = &dri2_surf->color_buffers[i];
 205          updated = EGL_TRUE;
 206          break;
 207       }
 208    }
 209
 210    if (!updated) {
 211       /* In case of all the buffers were recreated by ANativeWindow, reset
 212        * the color_buffers
 213        */
 214       for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
 215          dri2_surf->color_buffers[i].buffer = NULL;
 216          dri2_surf->color_buffers[i].age = 0;
 217       }
 218       dri2_surf->color_buffers[0].buffer = dri2_surf->buffer;
 219       dri2_surf->back = &dri2_surf->color_buffers[0];
 220    }
 221
 222    return EGL_TRUE;
 223 }
 224
 225 static EGLBoolean
 226 droid_window_enqueue_buffer(_EGLDisplay *disp, struct dri2_egl_surface *dri2_surf)
 227 {
 228    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 229
 230    /* To avoid blocking other EGL calls, release the display mutex before
 231     * we enter droid_window_enqueue_buffer() and re-acquire the mutex upon
 232     * return.
 233     */
 234    mtx_unlock(&disp->Mutex);
 235
 236    /* Queue the buffer without a sync fence. This informs the ANativeWindow
 237     * that it may access the buffer immediately.
 238     *
 239     * From ANativeWindow::dequeueBuffer:
 240     *
 241     *    The fenceFd argument specifies a libsync fence file descriptor for
 242     *    a fence that must signal before the buffer can be accessed.  If
 243     *    the buffer can be accessed immediately then a value of -1 should
 244     *    be used.  The caller must not use the file descriptor after it
 245     *    is passed to queueBuffer, and the ANativeWindow implementation
 246     *    is responsible for closing it.
 247     */
 248    int fence_fd = -1;
 249    dri2_surf->window->queueBuffer(dri2_surf->window, dri2_surf->buffer,
 250                                   fence_fd);
 251
 252    dri2_surf->buffer->common.decRef(&dri2_surf->buffer->common);
 253    dri2_surf->buffer = NULL;
 254    dri2_surf->back = NULL;
 255
 256    mtx_lock(&disp->Mutex);
 257
 258    if (dri2_surf->dri_image_back) {
 259       dri2_dpy->image->destroyImage(dri2_surf->dri_image_back);
 260       dri2_surf->dri_image_back = NULL;
 261    }
 262
 263    return EGL_TRUE;
 264 }
 265
 266 static void
 267 droid_window_cancel_buffer(struct dri2_egl_surface *dri2_surf)
 268 {
 269    int ret;
 270
 271    ret = dri2_surf->window->cancelBuffer(dri2_surf->window, dri2_surf->buffer, -1);
 272    if (ret < 0) {
 273       _eglLog(_EGL_WARNING, "ANativeWindow::cancelBuffer failed");
 274       dri2_surf->base.Lost = true;
 275    }
 276 }
 277
 278 static __DRIbuffer *
 279 droid_alloc_local_buffer(struct dri2_egl_surface *dri2_surf,
 280                          unsigned int att, unsigned int format)
 281 {
 282    struct dri2_egl_display *dri2_dpy =
 283       dri2_egl_display(dri2_surf->base.Resource.Display);
 284
 285    if (att >= ARRAY_SIZE(dri2_surf->local_buffers))
 286       return NULL;
 287
 288    if (!dri2_surf->local_buffers[att]) {
 289       dri2_surf->local_buffers[att] =
 290          dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen, att, format,
 291                dri2_surf->base.Width, dri2_surf->base.Height);
 292    }
 293
 294    return dri2_surf->local_buffers[att];
 295 }
 296
 297 static void
 298 droid_free_local_buffers(struct dri2_egl_surface *dri2_surf)
 299 {
 300    struct dri2_egl_display *dri2_dpy =
 301       dri2_egl_display(dri2_surf->base.Resource.Display);
 302    int i;
 303
 304    for (i = 0; i < ARRAY_SIZE(dri2_surf->local_buffers); i++) {
 305       if (dri2_surf->local_buffers[i]) {
 306          dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
 307                dri2_surf->local_buffers[i]);
 308          dri2_surf->local_buffers[i] = NULL;
 309       }
 310    }
 311 }
 312
 313 static _EGLSurface *
 314 droid_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
 315                     _EGLConfig *conf, void *native_window,
 316                     const EGLint *attrib_list)
 317 {
 318    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 319    struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
 320    struct dri2_egl_surface *dri2_surf;
 321    struct ANativeWindow *window = native_window;
 322    const __DRIconfig *config;
 323
 324    dri2_surf = calloc(1, sizeof *dri2_surf);
 325    if (!dri2_surf) {
 326       _eglError(EGL_BAD_ALLOC, "droid_create_surface");
 327       return NULL;
 328    }
 329
 330    if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
 331       goto cleanup_surface;
 332
 333    if (type == EGL_WINDOW_BIT) {
 334       int format;
 335
 336       if (!window || window->common.magic != ANDROID_NATIVE_WINDOW_MAGIC) {
 337          _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
 338          goto cleanup_surface;
 339       }
 340       if (window->query(window, NATIVE_WINDOW_FORMAT, &format)) {
 341          _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
 342          goto cleanup_surface;
 343       }
 344
 345       if (format != dri2_conf->base.NativeVisualID) {
 346          _eglLog(_EGL_WARNING, "Native format mismatch: 0x%x != 0x%x",
 347                format, dri2_conf->base.NativeVisualID);
 348       }
 349
 350       window->query(window, NATIVE_WINDOW_WIDTH, &dri2_surf->base.Width);
 351       window->query(window, NATIVE_WINDOW_HEIGHT, &dri2_surf->base.Height);
 352    }
 353
 354    config = dri2_get_dri_config(dri2_conf, type,
 355                                 dri2_surf->base.GLColorspace);
 356    if (!config)
 357       goto cleanup_surface;
 358
 359    dri2_surf->dri_drawable =
 360       dri2_dpy->dri2->createNewDrawable(dri2_dpy->dri_screen, config,
 361                                         dri2_surf);
 362    if (dri2_surf->dri_drawable == NULL) {
 363       _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
 364       goto cleanup_surface;
 365    }
 366
 367    if (window) {
 368       window->common.incRef(&window->common);
 369       dri2_surf->window = window;
 370    }
 371
 372    return &dri2_surf->base;
 373
 374 cleanup_surface:
 375    free(dri2_surf);
 376
 377    return NULL;
 378 }
 379
 380 static _EGLSurface *
 381 droid_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
 382                             _EGLConfig *conf, void *native_window,
 383                             const EGLint *attrib_list)
 384 {
 385    return droid_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
 386                                native_window, attrib_list);
 387 }
 388
 389 static _EGLSurface *
 390 droid_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
 391                             _EGLConfig *conf, const EGLint *attrib_list)
 392 {
 393    return droid_create_surface(drv, disp, EGL_PBUFFER_BIT, conf,
 394                               NULL, attrib_list);
 395 }
 396
 397 static EGLBoolean
 398 droid_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
 399 {
 400    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 401    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
 402
 403    droid_free_local_buffers(dri2_surf);
 404
 405    if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 406       if (dri2_surf->buffer)
 407          droid_window_cancel_buffer(dri2_surf);
 408
 409       dri2_surf->window->common.decRef(&dri2_surf->window->common);
 410    }
 411
 412    if (dri2_surf->dri_image_back) {
 413       _eglLog(_EGL_DEBUG, "%s : %d : destroy dri_image_back", __func__, __LINE__);
 414       dri2_dpy->image->destroyImage(dri2_surf->dri_image_back);
 415       dri2_surf->dri_image_back = NULL;
 416    }
 417
 418    if (dri2_surf->dri_image_front) {
 419       _eglLog(_EGL_DEBUG, "%s : %d : destroy dri_image_front", __func__, __LINE__);
 420       dri2_dpy->image->destroyImage(dri2_surf->dri_image_front);
 421       dri2_surf->dri_image_front = NULL;
 422    }
 423
 424    dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
 425
 426    free(dri2_surf);
 427
 428    return EGL_TRUE;
 429 }
 430
 431 static int
 432 update_buffers(struct dri2_egl_surface *dri2_surf)
 433 {
 434    if (dri2_surf->base.Type != EGL_WINDOW_BIT)
 435       return 0;
 436
 437    /* try to dequeue the next back buffer */
 438    if (!dri2_surf->buffer && !droid_window_dequeue_buffer(dri2_surf)) {
 439       _eglLog(_EGL_WARNING, "Could not dequeue buffer from native window");
 440       return -1;
 441    }
 442
 443    /* free outdated buffers and update the surface size */
 444    if (dri2_surf->base.Width != dri2_surf->buffer->width ||
 445        dri2_surf->base.Height != dri2_surf->buffer->height) {
 446       droid_free_local_buffers(dri2_surf);
 447       dri2_surf->base.Width = dri2_surf->buffer->width;
 448       dri2_surf->base.Height = dri2_surf->buffer->height;
 449    }
 450
 451    return 0;
 452 }
 453
 454 static int
 455 get_front_bo(struct dri2_egl_surface *dri2_surf, unsigned int format)
 456 {
 457    struct dri2_egl_display *dri2_dpy =
 458       dri2_egl_display(dri2_surf->base.Resource.Display);
 459
 460    if (dri2_surf->dri_image_front)
 461       return 0;
 462
 463    if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 464       /* According current EGL spec, front buffer rendering
 465        * for window surface is not supported now.
 466        * and mesa doesn't have the implementation of this case.
 467        * Add warning message, but not treat it as error.
 468        */
 469       _eglLog(_EGL_DEBUG, "DRI driver requested unsupported front buffer for window surface");
 470    } else if (dri2_surf->base.Type == EGL_PBUFFER_BIT) {
 471       dri2_surf->dri_image_front =
 472           dri2_dpy->image->createImage(dri2_dpy->dri_screen,
 473                                               dri2_surf->base.Width,
 474                                               dri2_surf->base.Height,
 475                                               format,
 476                                               0,
 477                                               dri2_surf);
 478       if (!dri2_surf->dri_image_front) {
 479          _eglLog(_EGL_WARNING, "dri2_image_front allocation failed");
 480          return -1;
 481       }
 482    }
 483
 484    return 0;
 485 }
 486
 487 static int
 488 get_back_bo(struct dri2_egl_surface *dri2_surf, unsigned int format)
 489 {
 490    struct dri2_egl_display *dri2_dpy =
 491       dri2_egl_display(dri2_surf->base.Resource.Display);
 492    int fourcc, pitch;
 493    int offset = 0, fd;
 494
 495    if (dri2_surf->dri_image_back)
 496       return 0;
 497
 498    if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 499       if (!dri2_surf->buffer) {
 500          _eglLog(_EGL_WARNING, "Could not get native buffer");
 501          return -1;
 502       }
 503
 504       fd = get_native_buffer_fd(dri2_surf->buffer);
 505       if (fd < 0) {
 506          _eglLog(_EGL_WARNING, "Could not get native buffer FD");
 507          return -1;
 508       }
 509
 510       fourcc = get_fourcc(dri2_surf->buffer->format);
 511
 512       pitch = dri2_surf->buffer->stride *
 513          get_format_bpp(dri2_surf->buffer->format);
 514
 515       if (fourcc == -1 || pitch == 0) {
 516          _eglLog(_EGL_WARNING, "Invalid buffer fourcc(%x) or pitch(%d)",
 517                  fourcc, pitch);
 518          return -1;
 519       }
 520
 521       dri2_surf->dri_image_back =
 522          dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
 523                                              dri2_surf->base.Width,
 524                                              dri2_surf->base.Height,
 525                                              fourcc,
 526                                              &fd,
 527                                              1,
 528                                              &pitch,
 529                                              &offset,
 530                                              dri2_surf);
 531       if (!dri2_surf->dri_image_back) {
 532          _eglLog(_EGL_WARNING, "failed to create DRI image from FD");
 533          return -1;
 534       }
 535    } else if (dri2_surf->base.Type == EGL_PBUFFER_BIT) {
 536       /* The EGL 1.5 spec states that pbuffers are single-buffered. Specifically,
 537        * the spec states that they have a back buffer but no front buffer, in
 538        * contrast to pixmaps, which have a front buffer but no back buffer.
 539        *
 540        * Single-buffered surfaces with no front buffer confuse Mesa; so we deviate
 541        * from the spec, following the precedent of Mesa's EGL X11 platform. The
 542        * X11 platform correctly assigns pbuffers to single-buffered configs, but
 543        * assigns the pbuffer a front buffer instead of a back buffer.
 544        *
 545        * Pbuffers in the X11 platform mostly work today, so let's just copy its
 546        * behavior instead of trying to fix (and hence potentially breaking) the
 547        * world.
 548        */
 549       _eglLog(_EGL_DEBUG, "DRI driver requested unsupported back buffer for pbuffer surface");
 550    }
 551
 552    return 0;
 553 }
 554
 555 /* Some drivers will pass multiple bits in buffer_mask.
 556  * For such case, will go through all the bits, and
 557  * will not return error when unsupported buffer is requested, only
 558  * return error when the allocation for supported buffer failed.
 559  */
 560 static int
 561 droid_image_get_buffers(__DRIdrawable *driDrawable,
 562                   unsigned int format,
 563                   uint32_t *stamp,
 564                   void *loaderPrivate,
 565                   uint32_t buffer_mask,
 566                   struct __DRIimageList *images)
 567 {
 568    struct dri2_egl_surface *dri2_surf = loaderPrivate;
 569
 570    images->image_mask = 0;
 571    images->front = NULL;
 572    images->back = NULL;
 573
 574    if (update_buffers(dri2_surf) < 0)
 575       return 0;
 576
 577    if (buffer_mask & __DRI_IMAGE_BUFFER_FRONT) {
 578       if (get_front_bo(dri2_surf, format) < 0)
 579          return 0;
 580
 581       if (dri2_surf->dri_image_front) {
 582          images->front = dri2_surf->dri_image_front;
 583          images->image_mask |= __DRI_IMAGE_BUFFER_FRONT;
 584       }
 585    }
 586
 587    if (buffer_mask & __DRI_IMAGE_BUFFER_BACK) {
 588       if (get_back_bo(dri2_surf, format) < 0)
 589          return 0;
 590
 591       if (dri2_surf->dri_image_back) {
 592          images->back = dri2_surf->dri_image_back;
 593          images->image_mask |= __DRI_IMAGE_BUFFER_BACK;
 594       }
 595    }
 596
 597    return 1;
 598 }
 599
 600 static EGLint
 601 droid_query_buffer_age(_EGLDriver *drv,
 602                           _EGLDisplay *disp, _EGLSurface *surface)
 603 {
 604    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surface);
 605
 606    if (update_buffers(dri2_surf) < 0) {
 607       _eglError(EGL_BAD_ALLOC, "droid_query_buffer_age");
 608       return 0;
 609    }
 610
 611    return dri2_surf->back->age;
 612 }
 613
 614 static EGLBoolean
 615 droid_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
 616 {
 617    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 618    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
 619
 620    if (dri2_surf->base.Type != EGL_WINDOW_BIT)
 621       return EGL_TRUE;
 622
 623    for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
 624       if (dri2_surf->color_buffers[i].age > 0)
 625          dri2_surf->color_buffers[i].age++;
 626    }
 627    dri2_surf->back->age = 1;
 628
 629    dri2_flush_drawable_for_swapbuffers(disp, draw);
 630
 631    if (dri2_surf->buffer)
 632       droid_window_enqueue_buffer(disp, dri2_surf);
 633
 634    dri2_dpy->flush->invalidate(dri2_surf->dri_drawable);
 635
 636    return EGL_TRUE;
 637 }
 638
 639 static _EGLImage *
 640 droid_create_image_from_prime_fd_yuv(_EGLDisplay *disp, _EGLContext *ctx,
 641                                      struct ANativeWindowBuffer *buf, int fd)
 642 {
 643    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 644    struct android_ycbcr ycbcr;
 645    size_t offsets[3];
 646    size_t pitches[3];
 647    int is_ycrcb;
 648    int fourcc;
 649    int ret;
 650
 651    if (!dri2_dpy->gralloc->lock_ycbcr) {
 652       _eglLog(_EGL_WARNING, "Gralloc does not support lock_ycbcr");
 653       return NULL;
 654    }
 655
 656    memset(&ycbcr, 0, sizeof(ycbcr));
 657    ret = dri2_dpy->gralloc->lock_ycbcr(dri2_dpy->gralloc, buf->handle,
 658                                        0, 0, 0, 0, 0, &ycbcr);
 659    if (ret) {
 660       _eglLog(_EGL_WARNING, "gralloc->lock_ycbcr failed: %d", ret);
 661       return NULL;
 662    }
 663    dri2_dpy->gralloc->unlock(dri2_dpy->gralloc, buf->handle);
 664
 665    /* When lock_ycbcr's usage argument contains no SW_READ/WRITE flags
 666     * it will return the .y/.cb/.cr pointers based on a NULL pointer,
 667     * so they can be interpreted as offsets. */
 668    offsets[0] = (size_t)ycbcr.y;
 669    /* We assume here that all the planes are located in one DMA-buf. */
 670    is_ycrcb = (size_t)ycbcr.cr < (size_t)ycbcr.cb;
 671    if (is_ycrcb) {
 672       offsets[1] = (size_t)ycbcr.cr;
 673       offsets[2] = (size_t)ycbcr.cb;
 674    } else {
 675       offsets[1] = (size_t)ycbcr.cb;
 676       offsets[2] = (size_t)ycbcr.cr;
 677    }
 678
 679    /* .ystride is the line length (in bytes) of the Y plane,
 680     * .cstride is the line length (in bytes) of any of the remaining
 681     * Cb/Cr/CbCr planes, assumed to be the same for Cb and Cr for fully
 682     * planar formats. */
 683    pitches[0] = ycbcr.ystride;
 684    pitches[1] = pitches[2] = ycbcr.cstride;
 685
 686    /* .chroma_step is the byte distance between the same chroma channel
 687     * values of subsequent pixels, assumed to be the same for Cb and Cr. */
 688    fourcc = get_fourcc_yuv(buf->format, is_ycrcb, ycbcr.chroma_step);
 689    if (fourcc == -1) {
 690       _eglLog(_EGL_WARNING, "unsupported YUV format, native = %x, is_ycrcb = %d, chroma_step = %d",
 691               buf->format, is_ycrcb, ycbcr.chroma_step);
 692       return NULL;
 693    }
 694
 695    if (ycbcr.chroma_step == 2) {
 696       /* Semi-planar Y + CbCr or Y + CbCr format. */
 697       const EGLint attr_list_2plane[] = {
 698          EGL_WIDTH, buf->width,
 699          EGL_HEIGHT, buf->height,
 700          EGL_LINUX_DRM_FOURCC_EXT, fourcc,
 701          EGL_DMA_BUF_PLANE0_FD_EXT, fd,
 702          EGL_DMA_BUF_PLANE0_PITCH_EXT, pitches[0],
 703          EGL_DMA_BUF_PLANE0_OFFSET_EXT, offsets[0],
 704          EGL_DMA_BUF_PLANE1_FD_EXT, fd,
 705          EGL_DMA_BUF_PLANE1_PITCH_EXT, pitches[1],
 706          EGL_DMA_BUF_PLANE1_OFFSET_EXT, offsets[1],
 707          EGL_NONE, 0
 708       };
 709
 710       return dri2_create_image_dma_buf(disp, ctx, NULL, attr_list_2plane);
 711    } else {
 712       /* Fully planar Y + Cb + Cr or Y + Cr + Cb format. */
 713       const EGLint attr_list_3plane[] = {
 714          EGL_WIDTH, buf->width,
 715          EGL_HEIGHT, buf->height,
 716          EGL_LINUX_DRM_FOURCC_EXT, fourcc,
 717          EGL_DMA_BUF_PLANE0_FD_EXT, fd,
 718          EGL_DMA_BUF_PLANE0_PITCH_EXT, pitches[0],
 719          EGL_DMA_BUF_PLANE0_OFFSET_EXT, offsets[0],
 720          EGL_DMA_BUF_PLANE1_FD_EXT, fd,
 721          EGL_DMA_BUF_PLANE1_PITCH_EXT, pitches[1],
 722          EGL_DMA_BUF_PLANE1_OFFSET_EXT, offsets[1],
 723          EGL_DMA_BUF_PLANE2_FD_EXT, fd,
 724          EGL_DMA_BUF_PLANE2_PITCH_EXT, pitches[2],
 725          EGL_DMA_BUF_PLANE2_OFFSET_EXT, offsets[2],
 726          EGL_NONE, 0
 727       };
 728
 729       return dri2_create_image_dma_buf(disp, ctx, NULL, attr_list_3plane);
 730    }
 731 }
 732
 733 static _EGLImage *
 734 droid_create_image_from_prime_fd(_EGLDisplay *disp, _EGLContext *ctx,
 735                                  struct ANativeWindowBuffer *buf, int fd)
 736 {
 737    unsigned int pitch;
 738
 739    if (is_yuv(buf->format))
 740       return droid_create_image_from_prime_fd_yuv(disp, ctx, buf, fd);
 741
 742    const int fourcc = get_fourcc(buf->format);
 743    if (fourcc == -1) {
 744       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 745       return NULL;
 746    }
 747
 748    pitch = buf->stride * get_format_bpp(buf->format);
 749    if (pitch == 0) {
 750       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 751       return NULL;
 752    }
 753
 754    const EGLint attr_list[] = {
 755       EGL_WIDTH, buf->width,
 756       EGL_HEIGHT, buf->height,
 757       EGL_LINUX_DRM_FOURCC_EXT, fourcc,
 758       EGL_DMA_BUF_PLANE0_FD_EXT, fd,
 759       EGL_DMA_BUF_PLANE0_PITCH_EXT, pitch,
 760       EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0,
 761       EGL_NONE, 0
 762    };
 763
 764    return dri2_create_image_dma_buf(disp, ctx, NULL, attr_list);
 765 }
 766
 767 static _EGLImage *
 768 droid_create_image_from_name(_EGLDisplay *disp, _EGLContext *ctx,
 769                              struct ANativeWindowBuffer *buf)
 770 {
 771    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 772    struct dri2_egl_image *dri2_img;
 773    int name;
 774    int format;
 775
 776    name = get_native_buffer_name(buf);
 777    if (!name) {
 778       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 779       return NULL;
 780    }
 781
 782    format = get_format(buf->format);
 783    if (format == -1)
 784        return NULL;
 785
 786    dri2_img = calloc(1, sizeof(*dri2_img));
 787    if (!dri2_img) {
 788       _eglError(EGL_BAD_ALLOC, "droid_create_image_mesa_drm");
 789       return NULL;
 790    }
 791
 792    if (!_eglInitImage(&dri2_img->base, disp)) {
 793       free(dri2_img);
 794       return NULL;
 795    }
 796
 797    dri2_img->dri_image =
 798       dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
 799                                            buf->width,
 800                                            buf->height,
 801                                            format,
 802                                            name,
 803                                            buf->stride,
 804                                            dri2_img);
 805    if (!dri2_img->dri_image) {
 806       free(dri2_img);
 807       _eglError(EGL_BAD_ALLOC, "droid_create_image_mesa_drm");
 808       return NULL;
 809    }
 810
 811    return &dri2_img->base;
 812 }
 813
 814 static EGLBoolean
 815 droid_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
 816                     EGLint attribute, EGLint *value)
 817 {
 818    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
 819    switch (attribute) {
 820       case EGL_WIDTH:
 821          if (dri2_surf->base.Type == EGL_WINDOW_BIT && dri2_surf->window) {
 822             dri2_surf->window->query(dri2_surf->window,
 823                                      NATIVE_WINDOW_DEFAULT_WIDTH, value);
 824             return EGL_TRUE;
 825          }
 826          break;
 827       case EGL_HEIGHT:
 828          if (dri2_surf->base.Type == EGL_WINDOW_BIT && dri2_surf->window) {
 829             dri2_surf->window->query(dri2_surf->window,
 830                                      NATIVE_WINDOW_DEFAULT_HEIGHT, value);
 831             return EGL_TRUE;
 832          }
 833          break;
 834       default:
 835          break;
 836    }
 837    return _eglQuerySurface(drv, dpy, surf, attribute, value);
 838 }
 839
 840 static _EGLImage *
 841 dri2_create_image_android_native_buffer(_EGLDisplay *disp,
 842                                         _EGLContext *ctx,
 843                                         struct ANativeWindowBuffer *buf)
 844 {
 845    int fd;
 846
 847    if (ctx != NULL) {
 848       /* From the EGL_ANDROID_image_native_buffer spec:
 849        *
 850        *     * If <target> is EGL_NATIVE_BUFFER_ANDROID and <ctx> is not
 851        *       EGL_NO_CONTEXT, the error EGL_BAD_CONTEXT is generated.
 852        */
 853       _eglError(EGL_BAD_CONTEXT, "eglCreateEGLImageKHR: for "
 854                 "EGL_NATIVE_BUFFER_ANDROID, the context must be "
 855                 "EGL_NO_CONTEXT");
 856       return NULL;
 857    }
 858
 859    if (!buf || buf->common.magic != ANDROID_NATIVE_BUFFER_MAGIC ||
 860        buf->common.version != sizeof(*buf)) {
 861       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 862       return NULL;
 863    }
 864
 865    fd = get_native_buffer_fd(buf);
 866    if (fd >= 0)
 867       return droid_create_image_from_prime_fd(disp, ctx, buf, fd);
 868
 869    return droid_create_image_from_name(disp, ctx, buf);
 870 }
 871
 872 static _EGLImage *
 873 droid_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
 874                        _EGLContext *ctx, EGLenum target,
 875                        EGLClientBuffer buffer, const EGLint *attr_list)
 876 {
 877    switch (target) {
 878    case EGL_NATIVE_BUFFER_ANDROID:
 879       return dri2_create_image_android_native_buffer(disp, ctx,
 880             (struct ANativeWindowBuffer *) buffer);
 881    default:
 882       return dri2_create_image_khr(drv, disp, ctx, target, buffer, attr_list);
 883    }
 884 }
 885
 886 static void
 887 droid_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
 888 {
 889 }
 890
 891 static int
 892 droid_get_buffers_parse_attachments(struct dri2_egl_surface *dri2_surf,
 893                                     unsigned int *attachments, int count)
 894 {
 895    int num_buffers = 0, i;
 896
 897    /* fill dri2_surf->buffers */
 898    for (i = 0; i < count * 2; i += 2) {
 899       __DRIbuffer *buf, *local;
 900
 901       assert(num_buffers < ARRAY_SIZE(dri2_surf->buffers));
 902       buf = &dri2_surf->buffers[num_buffers];
 903
 904       switch (attachments[i]) {
 905       case __DRI_BUFFER_BACK_LEFT:
 906          if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 907             buf->attachment = attachments[i];
 908             buf->name = get_native_buffer_name(dri2_surf->buffer);
 909             buf->cpp = get_format_bpp(dri2_surf->buffer->format);
 910             buf->pitch = dri2_surf->buffer->stride * buf->cpp;
 911             buf->flags = 0;
 912
 913             if (buf->name)
 914                num_buffers++;
 915
 916             break;
 917          }
 918          /* fall through for pbuffers */
 919       case __DRI_BUFFER_DEPTH:
 920       case __DRI_BUFFER_STENCIL:
 921       case __DRI_BUFFER_ACCUM:
 922       case __DRI_BUFFER_DEPTH_STENCIL:
 923       case __DRI_BUFFER_HIZ:
 924          local = droid_alloc_local_buffer(dri2_surf,
 925                attachments[i], attachments[i + 1]);
 926
 927          if (local) {
 928             *buf = *local;
 929             num_buffers++;
 930          }
 931          break;
 932       case __DRI_BUFFER_FRONT_LEFT:
 933       case __DRI_BUFFER_FRONT_RIGHT:
 934       case __DRI_BUFFER_FAKE_FRONT_LEFT:
 935       case __DRI_BUFFER_FAKE_FRONT_RIGHT:
 936       case __DRI_BUFFER_BACK_RIGHT:
 937       default:
 938          /* no front or right buffers */
 939          break;
 940       }
 941    }
 942
 943    return num_buffers;
 944 }
 945
 946 static __DRIbuffer *
 947 droid_get_buffers_with_format(__DRIdrawable * driDrawable,
 948                              int *width, int *height,
 949                              unsigned int *attachments, int count,
 950                              int *out_count, void *loaderPrivate)
 951 {
 952    struct dri2_egl_surface *dri2_surf = loaderPrivate;
 953
 954    if (update_buffers(dri2_surf) < 0)
 955       return NULL;
 956
 957    dri2_surf->buffer_count =
 958       droid_get_buffers_parse_attachments(dri2_surf, attachments, count);
 959
 960    if (width)
 961       *width = dri2_surf->base.Width;
 962    if (height)
 963       *height = dri2_surf->base.Height;
 964
 965    *out_count = dri2_surf->buffer_count;
 966
 967    return dri2_surf->buffers;
 968 }
 969
 970 static EGLBoolean
 971 droid_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *dpy)
 972 {
 973    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
 974    static const struct {
 975       int format;
 976       unsigned int rgba_masks[4];
 977    } visuals[] = {
 978       { HAL_PIXEL_FORMAT_RGBA_8888, { 0xff, 0xff00, 0xff0000, 0xff000000 } },
 979       { HAL_PIXEL_FORMAT_RGBX_8888, { 0xff, 0xff00, 0xff0000, 0x0 } },
 980       { HAL_PIXEL_FORMAT_RGB_565,   { 0xf800, 0x7e0, 0x1f, 0x0 } },
 981       { HAL_PIXEL_FORMAT_BGRA_8888, { 0xff0000, 0xff00, 0xff, 0xff000000 } },
 982    };
 983    EGLint config_attrs[] = {
 984      EGL_NATIVE_VISUAL_ID,   0,
 985      EGL_NATIVE_VISUAL_TYPE, 0,
 986      EGL_FRAMEBUFFER_TARGET_ANDROID, EGL_TRUE,
 987      EGL_RECORDABLE_ANDROID, EGL_TRUE,
 988      EGL_NONE
 989    };
 990    unsigned int format_count[ARRAY_SIZE(visuals)] = { 0 };
 991    int count, i, j;
 992
 993    count = 0;
 994    for (i = 0; dri2_dpy->driver_configs[i]; i++) {
 995       const EGLint surface_type = EGL_WINDOW_BIT | EGL_PBUFFER_BIT;
 996       struct dri2_egl_config *dri2_conf;
 997
 998       for (j = 0; j < ARRAY_SIZE(visuals); j++) {
 999          config_attrs[1] = visuals[j].format;
1000          config_attrs[3] = visuals[j].format;
1001
1002          dri2_conf = dri2_add_config(dpy, dri2_dpy->driver_configs[i],
1003                count + 1, surface_type, config_attrs, visuals[j].rgba_masks);
1004          if (dri2_conf) {
1005             count++;
1006             format_count[j]++;
1007          }
1008       }
1009    }
1010
1011    for (i = 0; i < ARRAY_SIZE(format_count); i++) {
1012       if (!format_count[i]) {
1013          _eglLog(_EGL_DEBUG, "No DRI config supports native format 0x%x",
1014                  visuals[i].format);
1015       }
1016    }
1017
1018    return (count != 0);
1019 }
1020
1021 static int
1022 droid_open_device(struct dri2_egl_display *dri2_dpy)
1023 {
1024    int fd = -1, err = -EINVAL;
1025
1026    if (dri2_dpy->gralloc->perform)
1027          err = dri2_dpy->gralloc->perform(dri2_dpy->gralloc,
1028                                           GRALLOC_MODULE_PERFORM_GET_DRM_FD,
1029                                           &fd);
1030    if (err || fd < 0) {
1031       _eglLog(_EGL_WARNING, "fail to get drm fd");
1032       fd = -1;
1033    }
1034
1035    return (fd >= 0) ? fcntl(fd, F_DUPFD_CLOEXEC, 3) : -1;
1036 }
1037
1038 /* support versions < JellyBean */
1039 #ifndef ALOGW
1040 #define ALOGW LOGW
1041 #endif
1042 #ifndef ALOGD
1043 #define ALOGD LOGD
1044 #endif
1045 #ifndef ALOGI
1046 #define ALOGI LOGI
1047 #endif
1048
1049 static void
1050 droid_log(EGLint level, const char *msg)
1051 {
1052    switch (level) {
1053    case _EGL_DEBUG:
1054       ALOGD("%s", msg);
1055       break;
1056    case _EGL_INFO:
1057       ALOGI("%s", msg);
1058       break;
1059    case _EGL_WARNING:
1060       ALOGW("%s", msg);
1061       break;
1062    case _EGL_FATAL:
1063       LOG_FATAL("%s", msg);
1064       break;
1065    default:
1066       break;
1067    }
1068 }
1069
1070 static struct dri2_egl_display_vtbl droid_display_vtbl = {
1071    .authenticate = NULL,
1072    .create_window_surface = droid_create_window_surface,
1073    .create_pixmap_surface = dri2_fallback_create_pixmap_surface,
1074    .create_pbuffer_surface = droid_create_pbuffer_surface,
1075    .destroy_surface = droid_destroy_surface,
1076    .create_image = droid_create_image_khr,
1077    .swap_interval = dri2_fallback_swap_interval,
1078    .swap_buffers = droid_swap_buffers,
1079    .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage,
1080    .swap_buffers_region = dri2_fallback_swap_buffers_region,
1081    .post_sub_buffer = dri2_fallback_post_sub_buffer,
1082    .copy_buffers = dri2_fallback_copy_buffers,
1083    .query_buffer_age = droid_query_buffer_age,
1084    .query_surface = droid_query_surface,
1085    .create_wayland_buffer_from_image = dri2_fallback_create_wayland_buffer_from_image,
1086    .get_sync_values = dri2_fallback_get_sync_values,
1087    .get_dri_drawable = dri2_surface_get_dri_drawable,
1088 };
1089
1090 static const __DRIdri2LoaderExtension droid_dri2_loader_extension = {
1091    .base = { __DRI_DRI2_LOADER, 3 },
1092
1093    .getBuffers           = NULL,
1094    .flushFrontBuffer     = droid_flush_front_buffer,
1095    .getBuffersWithFormat = droid_get_buffers_with_format,
1096 };
1097
1098 static const __DRIimageLoaderExtension droid_image_loader_extension = {
1099    .base = { __DRI_IMAGE_LOADER, 1 },
1100
1101    .getBuffers          = droid_image_get_buffers,
1102    .flushFrontBuffer    = droid_flush_front_buffer,
1103 };
1104
1105 static const __DRIextension *droid_dri2_loader_extensions[] = {
1106    &droid_dri2_loader_extension.base,
1107    &image_lookup_extension.base,
1108    &use_invalidate.base,
1109    NULL,
1110 };
1111
1112 static const __DRIextension *droid_image_loader_extensions[] = {
1113    &droid_image_loader_extension.base,
1114    &image_lookup_extension.base,
1115    &use_invalidate.base,
1116    NULL,
1117 };
1118
1119 EGLBoolean
1120 dri2_initialize_android(_EGLDriver *drv, _EGLDisplay *dpy)
1121 {
1122    struct dri2_egl_display *dri2_dpy;
1123    const char *err;
1124    int ret;
1125
1126    _eglSetLogProc(droid_log);
1127
1128    loader_set_logger(_eglLog);
1129
1130    dri2_dpy = calloc(1, sizeof(*dri2_dpy));
1131    if (!dri2_dpy)
1132       return _eglError(EGL_BAD_ALLOC, "eglInitialize");
1133
1134    ret = hw_get_module(GRALLOC_HARDWARE_MODULE_ID,
1135                        (const hw_module_t **)&dri2_dpy->gralloc);
1136    if (ret) {
1137       err = "DRI2: failed to get gralloc module";
1138       goto cleanup_display;
1139    }
1140
1141    dpy->DriverData = (void *) dri2_dpy;
1142
1143    dri2_dpy->fd = droid_open_device(dri2_dpy);
1144    if (dri2_dpy->fd < 0) {
1145       err = "DRI2: failed to open device";
1146       goto cleanup_display;
1147    }
1148
1149    dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd);
1150    if (dri2_dpy->driver_name == NULL) {
1151       err = "DRI2: failed to get driver name";
1152       goto cleanup_device;
1153    }
1154
1155    if (!dri2_load_driver(dpy)) {
1156       err = "DRI2: failed to load driver";
1157       goto cleanup_driver_name;
1158    }
1159
1160    dri2_dpy->is_render_node = drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER;
1161
1162    /* render nodes cannot use Gem names, and thus do not support
1163     * the __DRI_DRI2_LOADER extension */
1164    if (!dri2_dpy->is_render_node)
1165       dri2_dpy->loader_extensions = droid_dri2_loader_extensions;
1166    else
1167       dri2_dpy->loader_extensions = droid_image_loader_extensions;
1168
1169    if (!dri2_create_screen(dpy)) {
1170       err = "DRI2: failed to create screen";
1171       goto cleanup_driver;
1172    }
1173
1174    if (!droid_add_configs_for_visuals(drv, dpy)) {
1175       err = "DRI2: failed to add configs";
1176       goto cleanup_screen;
1177    }
1178
1179    dpy->Extensions.ANDROID_framebuffer_target = EGL_TRUE;
1180    dpy->Extensions.ANDROID_image_native_buffer = EGL_TRUE;
1181    dpy->Extensions.ANDROID_recordable = EGL_TRUE;
1182    dpy->Extensions.EXT_buffer_age = EGL_TRUE;
1183
1184    /* Fill vtbl last to prevent accidentally calling virtual function during
1185     * initialization.
1186     */
1187    dri2_dpy->vtbl = &droid_display_vtbl;
1188
1189    return EGL_TRUE;
1190
1191 cleanup_screen:
1192    dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
1193 cleanup_driver:
1194    dlclose(dri2_dpy->driver);
1195 cleanup_driver_name:
1196    free(dri2_dpy->driver_name);
1197 cleanup_device:
1198    close(dri2_dpy->fd);
1199 cleanup_display:
1200    free(dri2_dpy);
1201    dpy->DriverData = NULL;
1202
1203    return _eglError(EGL_NOT_INITIALIZED, err);
1204 }