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