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 <xf86drm.h>
  33
  34 #if ANDROID_VERSION >= 0x402
  35 #include <sync/sync.h>
  36 #endif
  37
  38 #include "loader.h"
  39 #include "egl_dri2.h"
  40 #include "egl_dri2_fallbacks.h"
  41 #include "gralloc_drm.h"
  42
  43 static int
  44 get_format_bpp(int native)
  45 {
  46    int bpp;
  47
  48    switch (native) {
  49    case HAL_PIXEL_FORMAT_RGBA_8888:
  50    case HAL_PIXEL_FORMAT_RGBX_8888:
  51    case HAL_PIXEL_FORMAT_BGRA_8888:
  52       bpp = 4;
  53       break;
  54    case HAL_PIXEL_FORMAT_RGB_888:
  55       bpp = 3;
  56       break;
  57    case HAL_PIXEL_FORMAT_RGB_565:
  58       bpp = 2;
  59       break;
  60    default:
  61       bpp = 0;
  62       break;
  63    }
  64
  65    return bpp;
  66 }
  67
  68 static int get_format(int format)
  69 {
  70    switch (format) {
  71    case HAL_PIXEL_FORMAT_BGRA_8888: return __DRI_IMAGE_FORMAT_ARGB8888;
  72    case HAL_PIXEL_FORMAT_RGB_565:   return __DRI_IMAGE_FORMAT_RGB565;
  73    case HAL_PIXEL_FORMAT_RGBA_8888: return __DRI_IMAGE_FORMAT_ABGR8888;
  74    case HAL_PIXEL_FORMAT_RGBX_8888: return __DRI_IMAGE_FORMAT_XBGR8888;
  75    case HAL_PIXEL_FORMAT_RGB_888:
  76       /* unsupported */
  77    default:
  78       _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", format);
  79    }
  80    return -1;
  81 }
  82 static int
  83 get_native_buffer_name(struct ANativeWindowBuffer *buf)
  84 {
  85    return gralloc_drm_get_gem_handle(buf->handle);
  86 }
  87
  88 static EGLBoolean
  89 droid_window_dequeue_buffer(struct dri2_egl_surface *dri2_surf)
  90 {
  91 #if ANDROID_VERSION >= 0x0402
  92    int fence_fd;
  93
  94    if (dri2_surf->window->dequeueBuffer(dri2_surf->window, &dri2_surf->buffer,
  95                                         &fence_fd))
  96       return EGL_FALSE;
  97
  98    /* If access to the buffer is controlled by a sync fence, then block on the
  99     * fence.
 100     *
 101     * It may be more performant to postpone blocking until there is an
 102     * immediate need to write to the buffer. But doing so would require adding
 103     * hooks to the DRI2 loader.
 104     *
 105     * From the ANativeWindow::dequeueBuffer documentation:
 106     *
 107     *    The libsync fence file descriptor returned in the int pointed to by
 108     *    the fenceFd argument will refer to the fence that must signal
 109     *    before the dequeued buffer may be written to.  A value of -1
 110     *    indicates that the caller may access the buffer immediately without
 111     *    waiting on a fence.  If a valid file descriptor is returned (i.e.
 112     *    any value except -1) then the caller is responsible for closing the
 113     *    file descriptor.
 114     */
 115     if (fence_fd >= 0) {
 116        /* From the SYNC_IOC_WAIT documentation in <linux/sync.h>:
 117         *
 118         *    Waits indefinitely if timeout < 0.
 119         */
 120         int timeout = -1;
 121         sync_wait(fence_fd, timeout);
 122         close(fence_fd);
 123    }
 124
 125    dri2_surf->buffer->common.incRef(&dri2_surf->buffer->common);
 126 #else
 127    if (dri2_surf->window->dequeueBuffer(dri2_surf->window, &dri2_surf->buffer))
 128       return EGL_FALSE;
 129
 130    dri2_surf->buffer->common.incRef(&dri2_surf->buffer->common);
 131    dri2_surf->window->lockBuffer(dri2_surf->window, dri2_surf->buffer);
 132 #endif
 133
 134    return EGL_TRUE;
 135 }
 136
 137 static EGLBoolean
 138 droid_window_enqueue_buffer(struct dri2_egl_surface *dri2_surf)
 139 {
 140 #if ANDROID_VERSION >= 0x0402
 141    /* Queue the buffer without a sync fence. This informs the ANativeWindow
 142     * that it may access the buffer immediately.
 143     *
 144     * From ANativeWindow::dequeueBuffer:
 145     *
 146     *    The fenceFd argument specifies a libsync fence file descriptor for
 147     *    a fence that must signal before the buffer can be accessed.  If
 148     *    the buffer can be accessed immediately then a value of -1 should
 149     *    be used.  The caller must not use the file descriptor after it
 150     *    is passed to queueBuffer, and the ANativeWindow implementation
 151     *    is responsible for closing it.
 152     */
 153    int fence_fd = -1;
 154    dri2_surf->window->queueBuffer(dri2_surf->window, dri2_surf->buffer,
 155                                   fence_fd);
 156 #else
 157    dri2_surf->window->queueBuffer(dri2_surf->window, dri2_surf->buffer);
 158 #endif
 159
 160    dri2_surf->buffer->common.decRef(&dri2_surf->buffer->common);
 161    dri2_surf->buffer = NULL;
 162
 163    return EGL_TRUE;
 164 }
 165
 166 static void
 167 droid_window_cancel_buffer(struct dri2_egl_surface *dri2_surf)
 168 {
 169    /* no cancel buffer? */
 170    droid_window_enqueue_buffer(dri2_surf);
 171 }
 172
 173 static __DRIbuffer *
 174 droid_alloc_local_buffer(struct dri2_egl_surface *dri2_surf,
 175                          unsigned int att, unsigned int format)
 176 {
 177    struct dri2_egl_display *dri2_dpy =
 178       dri2_egl_display(dri2_surf->base.Resource.Display);
 179
 180    if (att >= ARRAY_SIZE(dri2_surf->local_buffers))
 181       return NULL;
 182
 183    if (!dri2_surf->local_buffers[att]) {
 184       dri2_surf->local_buffers[att] =
 185          dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen, att, format,
 186                dri2_surf->base.Width, dri2_surf->base.Height);
 187    }
 188
 189    return dri2_surf->local_buffers[att];
 190 }
 191
 192 static void
 193 droid_free_local_buffers(struct dri2_egl_surface *dri2_surf)
 194 {
 195    struct dri2_egl_display *dri2_dpy =
 196       dri2_egl_display(dri2_surf->base.Resource.Display);
 197    int i;
 198
 199    for (i = 0; i < ARRAY_SIZE(dri2_surf->local_buffers); i++) {
 200       if (dri2_surf->local_buffers[i]) {
 201          dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
 202                dri2_surf->local_buffers[i]);
 203          dri2_surf->local_buffers[i] = NULL;
 204       }
 205    }
 206 }
 207
 208 static _EGLSurface *
 209 droid_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
 210                     _EGLConfig *conf, void *native_window,
 211                     const EGLint *attrib_list)
 212 {
 213    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 214    struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
 215    struct dri2_egl_surface *dri2_surf;
 216    struct ANativeWindow *window = native_window;
 217    const __DRIconfig *config;
 218
 219    dri2_surf = calloc(1, sizeof *dri2_surf);
 220    if (!dri2_surf) {
 221       _eglError(EGL_BAD_ALLOC, "droid_create_surface");
 222       return NULL;
 223    }
 224
 225    if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
 226       goto cleanup_surface;
 227
 228    if (type == EGL_WINDOW_BIT) {
 229       int format;
 230
 231       if (!window || window->common.magic != ANDROID_NATIVE_WINDOW_MAGIC) {
 232          _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
 233          goto cleanup_surface;
 234       }
 235       if (window->query(window, NATIVE_WINDOW_FORMAT, &format)) {
 236          _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
 237          goto cleanup_surface;
 238       }
 239
 240       if (format != dri2_conf->base.NativeVisualID) {
 241          _eglLog(_EGL_WARNING, "Native format mismatch: 0x%x != 0x%x",
 242                format, dri2_conf->base.NativeVisualID);
 243       }
 244
 245       window->query(window, NATIVE_WINDOW_WIDTH, &dri2_surf->base.Width);
 246       window->query(window, NATIVE_WINDOW_HEIGHT, &dri2_surf->base.Height);
 247    }
 248
 249    config = dri2_get_dri_config(dri2_conf, EGL_WINDOW_BIT,
 250                                 dri2_surf->base.GLColorspace);
 251
 252    dri2_surf->dri_drawable =
 253       (*dri2_dpy->dri2->createNewDrawable)(dri2_dpy->dri_screen, config,
 254                                            dri2_surf);
 255    if (dri2_surf->dri_drawable == NULL) {
 256       _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
 257       goto cleanup_surface;
 258    }
 259
 260    if (window) {
 261       window->common.incRef(&window->common);
 262       dri2_surf->window = window;
 263    }
 264
 265    return &dri2_surf->base;
 266
 267 cleanup_surface:
 268    free(dri2_surf);
 269
 270    return NULL;
 271 }
 272
 273 static _EGLSurface *
 274 droid_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
 275                             _EGLConfig *conf, void *native_window,
 276                             const EGLint *attrib_list)
 277 {
 278    return droid_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
 279                                native_window, attrib_list);
 280 }
 281
 282 static _EGLSurface *
 283 droid_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
 284                             _EGLConfig *conf, const EGLint *attrib_list)
 285 {
 286    return droid_create_surface(drv, disp, EGL_PBUFFER_BIT, conf,
 287                               NULL, attrib_list);
 288 }
 289
 290 static EGLBoolean
 291 droid_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
 292 {
 293    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 294    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
 295
 296    if (!_eglPutSurface(surf))
 297       return EGL_TRUE;
 298
 299    droid_free_local_buffers(dri2_surf);
 300
 301    if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 302       if (dri2_surf->buffer)
 303          droid_window_cancel_buffer(dri2_surf);
 304
 305       dri2_surf->window->common.decRef(&dri2_surf->window->common);
 306    }
 307
 308    (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
 309
 310    free(dri2_surf);
 311
 312    return EGL_TRUE;
 313 }
 314
 315 static int
 316 update_buffers(struct dri2_egl_surface *dri2_surf)
 317 {
 318    if (dri2_surf->base.Type != EGL_WINDOW_BIT)
 319       return 0;
 320
 321    /* try to dequeue the next back buffer */
 322    if (!dri2_surf->buffer && !droid_window_dequeue_buffer(dri2_surf))
 323       return -1;
 324
 325    /* free outdated buffers and update the surface size */
 326    if (dri2_surf->base.Width != dri2_surf->buffer->width ||
 327        dri2_surf->base.Height != dri2_surf->buffer->height) {
 328       droid_free_local_buffers(dri2_surf);
 329       dri2_surf->base.Width = dri2_surf->buffer->width;
 330       dri2_surf->base.Height = dri2_surf->buffer->height;
 331    }
 332
 333    return 0;
 334 }
 335
 336 static EGLBoolean
 337 droid_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
 338 {
 339    struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
 340    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 341    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
 342    _EGLContext *ctx;
 343
 344    if (dri2_surf->base.Type != EGL_WINDOW_BIT)
 345       return EGL_TRUE;
 346
 347    if (dri2_drv->glFlush) {
 348       ctx = _eglGetCurrentContext();
 349       if (ctx && ctx->DrawSurface == &dri2_surf->base)
 350          dri2_drv->glFlush();
 351    }
 352
 353    dri2_flush_drawable_for_swapbuffers(disp, draw);
 354
 355    if (dri2_surf->buffer)
 356       droid_window_enqueue_buffer(dri2_surf);
 357
 358    (*dri2_dpy->flush->invalidate)(dri2_surf->dri_drawable);
 359
 360    return EGL_TRUE;
 361 }
 362
 363 static _EGLImage *
 364 dri2_create_image_android_native_buffer(_EGLDisplay *disp, _EGLContext *ctx,
 365                                         struct ANativeWindowBuffer *buf)
 366 {
 367    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 368    struct dri2_egl_image *dri2_img;
 369    int name;
 370
 371    if (ctx != NULL) {
 372       /* From the EGL_ANDROID_image_native_buffer spec:
 373        *
 374        *     * If <target> is EGL_NATIVE_BUFFER_ANDROID and <ctx> is not
 375        *       EGL_NO_CONTEXT, the error EGL_BAD_CONTEXT is generated.
 376        */
 377       _eglError(EGL_BAD_CONTEXT, "eglCreateEGLImageKHR: for "
 378                 "EGL_NATIVE_BUFFER_ANDROID, the context must be "
 379                 "EGL_NO_CONTEXT");
 380       return NULL;
 381    }
 382
 383    if (!buf || buf->common.magic != ANDROID_NATIVE_BUFFER_MAGIC ||
 384        buf->common.version != sizeof(*buf)) {
 385       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 386       return NULL;
 387    }
 388
 389    name = get_native_buffer_name(buf);
 390    if (!name) {
 391       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 392       return NULL;
 393    }
 394
 395    dri2_img = calloc(1, sizeof(*dri2_img));
 396    if (!dri2_img) {
 397       _eglError(EGL_BAD_ALLOC, "droid_create_image_mesa_drm");
 398       return NULL;
 399    }
 400
 401    if (!_eglInitImage(&dri2_img->base, disp)) {
 402       free(dri2_img);
 403       return NULL;
 404    }
 405
 406    dri2_img->dri_image =
 407       dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
 408                                            buf->width,
 409                                            buf->height,
 410                                            get_format(buf->format),
 411                                            name,
 412                                            buf->stride,
 413                                            dri2_img);
 414    if (!dri2_img->dri_image) {
 415       free(dri2_img);
 416       _eglError(EGL_BAD_ALLOC, "droid_create_image_mesa_drm");
 417       return NULL;
 418    }
 419
 420    return &dri2_img->base;
 421 }
 422
 423 static _EGLImage *
 424 droid_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
 425                        _EGLContext *ctx, EGLenum target,
 426                        EGLClientBuffer buffer, const EGLint *attr_list)
 427 {
 428    switch (target) {
 429    case EGL_NATIVE_BUFFER_ANDROID:
 430       return dri2_create_image_android_native_buffer(disp, ctx,
 431             (struct ANativeWindowBuffer *) buffer);
 432    default:
 433       return dri2_create_image_khr(drv, disp, ctx, target, buffer, attr_list);
 434    }
 435 }
 436
 437 static void
 438 droid_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
 439 {
 440 }
 441
 442 static int
 443 droid_get_buffers_parse_attachments(struct dri2_egl_surface *dri2_surf,
 444                                     unsigned int *attachments, int count)
 445 {
 446    int num_buffers = 0, i;
 447
 448    /* fill dri2_surf->buffers */
 449    for (i = 0; i < count * 2; i += 2) {
 450       __DRIbuffer *buf, *local;
 451
 452       assert(num_buffers < ARRAY_SIZE(dri2_surf->buffers));
 453       buf = &dri2_surf->buffers[num_buffers];
 454
 455       switch (attachments[i]) {
 456       case __DRI_BUFFER_BACK_LEFT:
 457          if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 458             buf->attachment = attachments[i];
 459             buf->name = get_native_buffer_name(dri2_surf->buffer);
 460             buf->cpp = get_format_bpp(dri2_surf->buffer->format);
 461             buf->pitch = dri2_surf->buffer->stride * buf->cpp;
 462             buf->flags = 0;
 463
 464             if (buf->name)
 465                num_buffers++;
 466
 467             break;
 468          }
 469          /* fall through for pbuffers */
 470       case __DRI_BUFFER_DEPTH:
 471       case __DRI_BUFFER_STENCIL:
 472       case __DRI_BUFFER_ACCUM:
 473       case __DRI_BUFFER_DEPTH_STENCIL:
 474       case __DRI_BUFFER_HIZ:
 475          local = droid_alloc_local_buffer(dri2_surf,
 476                attachments[i], attachments[i + 1]);
 477
 478          if (local) {
 479             *buf = *local;
 480             num_buffers++;
 481          }
 482          break;
 483       case __DRI_BUFFER_FRONT_LEFT:
 484       case __DRI_BUFFER_FRONT_RIGHT:
 485       case __DRI_BUFFER_FAKE_FRONT_LEFT:
 486       case __DRI_BUFFER_FAKE_FRONT_RIGHT:
 487       case __DRI_BUFFER_BACK_RIGHT:
 488       default:
 489          /* no front or right buffers */
 490          break;
 491       }
 492    }
 493
 494    return num_buffers;
 495 }
 496
 497 static __DRIbuffer *
 498 droid_get_buffers_with_format(__DRIdrawable * driDrawable,
 499                              int *width, int *height,
 500                              unsigned int *attachments, int count,
 501                              int *out_count, void *loaderPrivate)
 502 {
 503    struct dri2_egl_surface *dri2_surf = loaderPrivate;
 504    struct dri2_egl_display *dri2_dpy =
 505       dri2_egl_display(dri2_surf->base.Resource.Display);
 506    int i;
 507
 508    if (update_buffers(dri2_surf) < 0)
 509       return NULL;
 510
 511    dri2_surf->buffer_count =
 512       droid_get_buffers_parse_attachments(dri2_surf, attachments, count);
 513
 514    if (width)
 515       *width = dri2_surf->base.Width;
 516    if (height)
 517       *height = dri2_surf->base.Height;
 518
 519    *out_count = dri2_surf->buffer_count;
 520
 521    return dri2_surf->buffers;
 522 }
 523
 524 static EGLBoolean
 525 droid_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *dpy)
 526 {
 527    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
 528    const struct {
 529       int format;
 530       unsigned int rgba_masks[4];
 531    } visuals[] = {
 532       { HAL_PIXEL_FORMAT_RGBA_8888, { 0xff, 0xff00, 0xff0000, 0xff000000 } },
 533       { HAL_PIXEL_FORMAT_RGBX_8888, { 0xff, 0xff00, 0xff0000, 0x0 } },
 534       { HAL_PIXEL_FORMAT_RGB_888,   { 0xff, 0xff00, 0xff0000, 0x0 } },
 535       { HAL_PIXEL_FORMAT_RGB_565,   { 0xf800, 0x7e0, 0x1f, 0x0 } },
 536       { HAL_PIXEL_FORMAT_BGRA_8888, { 0xff0000, 0xff00, 0xff, 0xff000000 } },
 537       { 0, { 0, 0, 0, 0 } }
 538    };
 539    EGLint config_attrs[] = {
 540      EGL_NATIVE_VISUAL_ID,   0,
 541      EGL_NATIVE_VISUAL_TYPE, 0,
 542      EGL_FRAMEBUFFER_TARGET_ANDROID, EGL_TRUE,
 543      EGL_RECORDABLE_ANDROID, EGL_TRUE,
 544      EGL_NONE
 545    };
 546    int count, i, j;
 547
 548    count = 0;
 549    for (i = 0; visuals[i].format; i++) {
 550       int format_count = 0;
 551
 552       config_attrs[1] = visuals[i].format;
 553       config_attrs[3] = visuals[i].format;
 554
 555       for (j = 0; dri2_dpy->driver_configs[j]; j++) {
 556          const EGLint surface_type = EGL_WINDOW_BIT | EGL_PBUFFER_BIT;
 557          struct dri2_egl_config *dri2_conf;
 558          unsigned int double_buffered = 0;
 559
 560          dri2_dpy->core->getConfigAttrib(dri2_dpy->driver_configs[j],
 561             __DRI_ATTRIB_DOUBLE_BUFFER, &double_buffered);
 562
 563          /* support only double buffered configs */
 564          if (!double_buffered)
 565             continue;
 566
 567          dri2_conf = dri2_add_config(dpy, dri2_dpy->driver_configs[j],
 568                count + 1, surface_type, config_attrs, visuals[i].rgba_masks);
 569          if (dri2_conf) {
 570             count++;
 571             format_count++;
 572          }
 573       }
 574
 575       if (!format_count) {
 576          _eglLog(_EGL_DEBUG, "No DRI config supports native format 0x%x",
 577                visuals[i].format);
 578       }
 579    }
 580
 581    /* post-process configs */
 582    for (i = 0; i < dpy->Configs->Size; i++) {
 583       struct dri2_egl_config *dri2_conf = dri2_egl_config(dpy->Configs->Elements[i]);
 584
 585       /* there is no front buffer so no OpenGL */
 586       dri2_conf->base.RenderableType &= ~EGL_OPENGL_BIT;
 587       dri2_conf->base.Conformant &= ~EGL_OPENGL_BIT;
 588    }
 589
 590    return (count != 0);
 591 }
 592
 593 static int
 594 droid_open_device(void)
 595 {
 596    const hw_module_t *mod;
 597    int fd = -1, err;
 598
 599    err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &mod);
 600    if (!err) {
 601       const gralloc_module_t *gr = (gralloc_module_t *) mod;
 602
 603       err = -EINVAL;
 604       if (gr->perform)
 605          err = gr->perform(gr, GRALLOC_MODULE_PERFORM_GET_DRM_FD, &fd);
 606    }
 607    if (err || fd < 0) {
 608       _eglLog(_EGL_WARNING, "fail to get drm fd");
 609       fd = -1;
 610    }
 611
 612    return (fd >= 0) ? dup(fd) : -1;
 613 }
 614
 615 /* support versions < JellyBean */
 616 #ifndef ALOGW
 617 #define ALOGW LOGW
 618 #endif
 619 #ifndef ALOGD
 620 #define ALOGD LOGD
 621 #endif
 622 #ifndef ALOGI
 623 #define ALOGI LOGI
 624 #endif
 625
 626 static void
 627 droid_log(EGLint level, const char *msg)
 628 {
 629    switch (level) {
 630    case _EGL_DEBUG:
 631       ALOGD("%s", msg);
 632       break;
 633    case _EGL_INFO:
 634       ALOGI("%s", msg);
 635       break;
 636    case _EGL_WARNING:
 637       ALOGW("%s", msg);
 638       break;
 639    case _EGL_FATAL:
 640       LOG_FATAL("%s", msg);
 641       break;
 642    default:
 643       break;
 644    }
 645 }
 646
 647 static struct dri2_egl_display_vtbl droid_display_vtbl = {
 648    .authenticate = NULL,
 649    .create_window_surface = droid_create_window_surface,
 650    .create_pixmap_surface = dri2_fallback_create_pixmap_surface,
 651    .create_pbuffer_surface = droid_create_pbuffer_surface,
 652    .destroy_surface = droid_destroy_surface,
 653    .create_image = droid_create_image_khr,
 654    .swap_interval = dri2_fallback_swap_interval,
 655    .swap_buffers = droid_swap_buffers,
 656    .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage,
 657    .swap_buffers_region = dri2_fallback_swap_buffers_region,
 658    .post_sub_buffer = dri2_fallback_post_sub_buffer,
 659    .copy_buffers = dri2_fallback_copy_buffers,
 660    .query_buffer_age = dri2_fallback_query_buffer_age,
 661    .create_wayland_buffer_from_image = dri2_fallback_create_wayland_buffer_from_image,
 662    .get_sync_values = dri2_fallback_get_sync_values,
 663    .get_dri_drawable = dri2_surface_get_dri_drawable,
 664 };
 665
 666 EGLBoolean
 667 dri2_initialize_android(_EGLDriver *drv, _EGLDisplay *dpy)
 668 {
 669    struct dri2_egl_display *dri2_dpy;
 670    const char *err;
 671
 672    _eglSetLogProc(droid_log);
 673
 674    loader_set_logger(_eglLog);
 675
 676    dri2_dpy = calloc(1, sizeof(*dri2_dpy));
 677    if (!dri2_dpy)
 678       return _eglError(EGL_BAD_ALLOC, "eglInitialize");
 679
 680    dpy->DriverData = (void *) dri2_dpy;
 681
 682    dri2_dpy->fd = droid_open_device();
 683    if (dri2_dpy->fd < 0) {
 684       err = "DRI2: failed to open device";
 685       goto cleanup_display;
 686    }
 687
 688    dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd, 0);
 689    if (dri2_dpy->driver_name == NULL) {
 690       err = "DRI2: failed to get driver name";
 691       goto cleanup_device;
 692    }
 693
 694    if (!dri2_load_driver(dpy)) {
 695       err = "DRI2: failed to load driver";
 696       goto cleanup_driver_name;
 697    }
 698
 699    dri2_dpy->is_render_node = drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER;
 700
 701    dri2_dpy->extensions[0] = &image_lookup_extension.base;
 702    dri2_dpy->extensions[1] = &use_invalidate.base;
 703
 704    /* render nodes cannot use Gem names, and thus do not support
 705     * the __DRI_DRI2_LOADER extension */
 706    if (!dri2_dpy->is_render_node) {
 707       dri2_dpy->dri2_loader_extension.base.name = __DRI_DRI2_LOADER;
 708       dri2_dpy->dri2_loader_extension.base.version = 3;
 709       dri2_dpy->dri2_loader_extension.getBuffers = NULL;
 710       dri2_dpy->dri2_loader_extension.flushFrontBuffer = droid_flush_front_buffer;
 711       dri2_dpy->dri2_loader_extension.getBuffersWithFormat =
 712         droid_get_buffers_with_format;
 713       dri2_dpy->extensions[2] = &dri2_dpy->dri2_loader_extension.base;
 714       dri2_dpy->extensions[3] = NULL;
 715    } else
 716       dri2_dpy->extensions[2] = NULL;
 717
 718
 719    if (!dri2_create_screen(dpy)) {
 720       err = "DRI2: failed to create screen";
 721       goto cleanup_driver;
 722    }
 723
 724    if (!droid_add_configs_for_visuals(drv, dpy)) {
 725       err = "DRI2: failed to add configs";
 726       goto cleanup_screen;
 727    }
 728
 729    dpy->Extensions.ANDROID_framebuffer_target = EGL_TRUE;
 730    dpy->Extensions.ANDROID_image_native_buffer = EGL_TRUE;
 731    dpy->Extensions.ANDROID_recordable = EGL_TRUE;
 732    dpy->Extensions.KHR_image_base = EGL_TRUE;
 733
 734    /* Fill vtbl last to prevent accidentally calling virtual function during
 735     * initialization.
 736     */
 737    dri2_dpy->vtbl = &droid_display_vtbl;
 738
 739    return EGL_TRUE;
 740
 741 cleanup_screen:
 742    dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
 743 cleanup_driver:
 744    dlclose(dri2_dpy->driver);
 745 cleanup_driver_name:
 746    free(dri2_dpy->driver_name);
 747 cleanup_device:
 748    close(dri2_dpy->fd);
 749 cleanup_display:
 750    free(dri2_dpy);
 751
 752    return _eglError(EGL_NOT_INITIALIZED, err);
 753 }