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
  36 #if ANDROID_VERSION >= 0x402
  37 #include <sync/sync.h>
  38 #endif
  39
  40 #include "loader.h"
  41 #include "egl_dri2.h"
  42 #include "egl_dri2_fallbacks.h"
  43 #include "gralloc_drm.h"
  44
  45 #define ALIGN(val, align)       (((val) + (align) - 1) & ~((align) - 1))
  46
  47 struct droid_yuv_format {
  48    /* Lookup keys */
  49    int native; /* HAL_PIXEL_FORMAT_ */
  50    int is_ycrcb; /* 0 if chroma order is {Cb, Cr}, 1 if {Cr, Cb} */
  51    int chroma_step; /* Distance in bytes between subsequent chroma pixels. */
  52
  53    /* Result */
  54    int fourcc; /* __DRI_IMAGE_FOURCC_ */
  55 };
  56
  57 /* The following table is used to look up a DRI image FourCC based
  58  * on native format and information contained in android_ycbcr struct. */
  59 static const struct droid_yuv_format droid_yuv_formats[] = {
  60    /* Native format, YCrCb, Chroma step, DRI image FourCC */
  61    { HAL_PIXEL_FORMAT_YCbCr_420_888,   0, 2, __DRI_IMAGE_FOURCC_NV12 },
  62    { HAL_PIXEL_FORMAT_YCbCr_420_888,   0, 1, __DRI_IMAGE_FOURCC_YUV420 },
  63    { HAL_PIXEL_FORMAT_YCbCr_420_888,   1, 1, __DRI_IMAGE_FOURCC_YVU420 },
  64    { HAL_PIXEL_FORMAT_YV12,            1, 1, __DRI_IMAGE_FOURCC_YVU420 },
  65 };
  66
  67 static int
  68 get_fourcc_yuv(int native, int is_ycrcb, int chroma_step)
  69 {
  70    int i;
  71
  72    for (i = 0; i < ARRAY_SIZE(droid_yuv_formats); ++i)
  73       if (droid_yuv_formats[i].native == native &&
  74           droid_yuv_formats[i].is_ycrcb == is_ycrcb &&
  75           droid_yuv_formats[i].chroma_step == chroma_step)
  76          return droid_yuv_formats[i].fourcc;
  77
  78    return -1;
  79 }
  80
  81 static bool
  82 is_yuv(int native)
  83 {
  84    int i;
  85
  86    for (i = 0; i < ARRAY_SIZE(droid_yuv_formats); ++i)
  87       if (droid_yuv_formats[i].native == native)
  88          return true;
  89
  90    return false;
  91 }
  92
  93 static int
  94 get_format_bpp(int native)
  95 {
  96    int bpp;
  97
  98    switch (native) {
  99    case HAL_PIXEL_FORMAT_RGBA_8888:
 100    case HAL_PIXEL_FORMAT_RGBX_8888:
 101    case HAL_PIXEL_FORMAT_BGRA_8888:
 102       bpp = 4;
 103       break;
 104    case HAL_PIXEL_FORMAT_RGB_565:
 105       bpp = 2;
 106       break;
 107    default:
 108       bpp = 0;
 109       break;
 110    }
 111
 112    return bpp;
 113 }
 114
 115 /* createImageFromFds requires fourcc format */
 116 static int get_fourcc(int native)
 117 {
 118    switch (native) {
 119    case HAL_PIXEL_FORMAT_RGB_565:   return __DRI_IMAGE_FOURCC_RGB565;
 120    case HAL_PIXEL_FORMAT_BGRA_8888: return __DRI_IMAGE_FOURCC_ARGB8888;
 121    case HAL_PIXEL_FORMAT_RGBA_8888: return __DRI_IMAGE_FOURCC_ABGR8888;
 122    case HAL_PIXEL_FORMAT_RGBX_8888: return __DRI_IMAGE_FOURCC_XBGR8888;
 123    default:
 124       _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", native);
 125    }
 126    return -1;
 127 }
 128
 129 static int get_format(int format)
 130 {
 131    switch (format) {
 132    case HAL_PIXEL_FORMAT_BGRA_8888: return __DRI_IMAGE_FORMAT_ARGB8888;
 133    case HAL_PIXEL_FORMAT_RGB_565:   return __DRI_IMAGE_FORMAT_RGB565;
 134    case HAL_PIXEL_FORMAT_RGBA_8888: return __DRI_IMAGE_FORMAT_ABGR8888;
 135    case HAL_PIXEL_FORMAT_RGBX_8888: return __DRI_IMAGE_FORMAT_XBGR8888;
 136    default:
 137       _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", format);
 138    }
 139    return -1;
 140 }
 141
 142 static int
 143 get_native_buffer_fd(struct ANativeWindowBuffer *buf)
 144 {
 145    native_handle_t *handle = (native_handle_t *)buf->handle;
 146    /*
 147     * Various gralloc implementations exist, but the dma-buf fd tends
 148     * to be first. Access it directly to avoid a dependency on specific
 149     * gralloc versions.
 150     */
 151    return (handle && handle->numFds) ? handle->data[0] : -1;
 152 }
 153
 154 static int
 155 get_native_buffer_name(struct ANativeWindowBuffer *buf)
 156 {
 157    return gralloc_drm_get_gem_handle(buf->handle);
 158 }
 159
 160 static EGLBoolean
 161 droid_window_dequeue_buffer(struct dri2_egl_surface *dri2_surf)
 162 {
 163 #if ANDROID_VERSION >= 0x0402
 164    int fence_fd;
 165
 166    if (dri2_surf->window->dequeueBuffer(dri2_surf->window, &dri2_surf->buffer,
 167                                         &fence_fd))
 168       return EGL_FALSE;
 169
 170    /* If access to the buffer is controlled by a sync fence, then block on the
 171     * fence.
 172     *
 173     * It may be more performant to postpone blocking until there is an
 174     * immediate need to write to the buffer. But doing so would require adding
 175     * hooks to the DRI2 loader.
 176     *
 177     * From the ANativeWindow::dequeueBuffer documentation:
 178     *
 179     *    The libsync fence file descriptor returned in the int pointed to by
 180     *    the fenceFd argument will refer to the fence that must signal
 181     *    before the dequeued buffer may be written to.  A value of -1
 182     *    indicates that the caller may access the buffer immediately without
 183     *    waiting on a fence.  If a valid file descriptor is returned (i.e.
 184     *    any value except -1) then the caller is responsible for closing the
 185     *    file descriptor.
 186     */
 187     if (fence_fd >= 0) {
 188        /* From the SYNC_IOC_WAIT documentation in <linux/sync.h>:
 189         *
 190         *    Waits indefinitely if timeout < 0.
 191         */
 192         int timeout = -1;
 193         sync_wait(fence_fd, timeout);
 194         close(fence_fd);
 195    }
 196
 197    dri2_surf->buffer->common.incRef(&dri2_surf->buffer->common);
 198 #else
 199    if (dri2_surf->window->dequeueBuffer(dri2_surf->window, &dri2_surf->buffer))
 200       return EGL_FALSE;
 201
 202    dri2_surf->buffer->common.incRef(&dri2_surf->buffer->common);
 203    dri2_surf->window->lockBuffer(dri2_surf->window, dri2_surf->buffer);
 204 #endif
 205
 206    return EGL_TRUE;
 207 }
 208
 209 static EGLBoolean
 210 droid_window_enqueue_buffer(_EGLDisplay *disp, struct dri2_egl_surface *dri2_surf)
 211 {
 212    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 213
 214    /* To avoid blocking other EGL calls, release the display mutex before
 215     * we enter droid_window_enqueue_buffer() and re-acquire the mutex upon
 216     * return.
 217     */
 218    mtx_unlock(&disp->Mutex);
 219
 220 #if ANDROID_VERSION >= 0x0402
 221    /* Queue the buffer without a sync fence. This informs the ANativeWindow
 222     * that it may access the buffer immediately.
 223     *
 224     * From ANativeWindow::dequeueBuffer:
 225     *
 226     *    The fenceFd argument specifies a libsync fence file descriptor for
 227     *    a fence that must signal before the buffer can be accessed.  If
 228     *    the buffer can be accessed immediately then a value of -1 should
 229     *    be used.  The caller must not use the file descriptor after it
 230     *    is passed to queueBuffer, and the ANativeWindow implementation
 231     *    is responsible for closing it.
 232     */
 233    int fence_fd = -1;
 234    dri2_surf->window->queueBuffer(dri2_surf->window, dri2_surf->buffer,
 235                                   fence_fd);
 236 #else
 237    dri2_surf->window->queueBuffer(dri2_surf->window, dri2_surf->buffer);
 238 #endif
 239
 240    dri2_surf->buffer->common.decRef(&dri2_surf->buffer->common);
 241    dri2_surf->buffer = NULL;
 242
 243    mtx_lock(&disp->Mutex);
 244
 245    if (dri2_surf->dri_image_back) {
 246       dri2_dpy->image->destroyImage(dri2_surf->dri_image_back);
 247       dri2_surf->dri_image_back = NULL;
 248    }
 249
 250    return EGL_TRUE;
 251 }
 252
 253 static void
 254 droid_window_cancel_buffer(_EGLDisplay *disp, struct dri2_egl_surface *dri2_surf)
 255 {
 256    /* no cancel buffer? */
 257    droid_window_enqueue_buffer(disp, dri2_surf);
 258 }
 259
 260 static __DRIbuffer *
 261 droid_alloc_local_buffer(struct dri2_egl_surface *dri2_surf,
 262                          unsigned int att, unsigned int format)
 263 {
 264    struct dri2_egl_display *dri2_dpy =
 265       dri2_egl_display(dri2_surf->base.Resource.Display);
 266
 267    if (att >= ARRAY_SIZE(dri2_surf->local_buffers))
 268       return NULL;
 269
 270    if (!dri2_surf->local_buffers[att]) {
 271       dri2_surf->local_buffers[att] =
 272          dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen, att, format,
 273                dri2_surf->base.Width, dri2_surf->base.Height);
 274    }
 275
 276    return dri2_surf->local_buffers[att];
 277 }
 278
 279 static void
 280 droid_free_local_buffers(struct dri2_egl_surface *dri2_surf)
 281 {
 282    struct dri2_egl_display *dri2_dpy =
 283       dri2_egl_display(dri2_surf->base.Resource.Display);
 284    int i;
 285
 286    for (i = 0; i < ARRAY_SIZE(dri2_surf->local_buffers); i++) {
 287       if (dri2_surf->local_buffers[i]) {
 288          dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
 289                dri2_surf->local_buffers[i]);
 290          dri2_surf->local_buffers[i] = NULL;
 291       }
 292    }
 293 }
 294
 295 static _EGLSurface *
 296 droid_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
 297                     _EGLConfig *conf, void *native_window,
 298                     const EGLint *attrib_list)
 299 {
 300    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 301    struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
 302    struct dri2_egl_surface *dri2_surf;
 303    struct ANativeWindow *window = native_window;
 304    const __DRIconfig *config;
 305
 306    dri2_surf = calloc(1, sizeof *dri2_surf);
 307    if (!dri2_surf) {
 308       _eglError(EGL_BAD_ALLOC, "droid_create_surface");
 309       return NULL;
 310    }
 311
 312    if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
 313       goto cleanup_surface;
 314
 315    if (type == EGL_WINDOW_BIT) {
 316       int format;
 317
 318       if (!window || window->common.magic != ANDROID_NATIVE_WINDOW_MAGIC) {
 319          _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
 320          goto cleanup_surface;
 321       }
 322       if (window->query(window, NATIVE_WINDOW_FORMAT, &format)) {
 323          _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
 324          goto cleanup_surface;
 325       }
 326
 327       if (format != dri2_conf->base.NativeVisualID) {
 328          _eglLog(_EGL_WARNING, "Native format mismatch: 0x%x != 0x%x",
 329                format, dri2_conf->base.NativeVisualID);
 330       }
 331
 332       window->query(window, NATIVE_WINDOW_WIDTH, &dri2_surf->base.Width);
 333       window->query(window, NATIVE_WINDOW_HEIGHT, &dri2_surf->base.Height);
 334    }
 335
 336    config = dri2_get_dri_config(dri2_conf, type,
 337                                 dri2_surf->base.GLColorspace);
 338    if (!config)
 339       goto cleanup_surface;
 340
 341    dri2_surf->dri_drawable =
 342       dri2_dpy->dri2->createNewDrawable(dri2_dpy->dri_screen, config,
 343                                         dri2_surf);
 344    if (dri2_surf->dri_drawable == NULL) {
 345       _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
 346       goto cleanup_surface;
 347    }
 348
 349    if (window) {
 350       window->common.incRef(&window->common);
 351       dri2_surf->window = window;
 352    }
 353
 354    return &dri2_surf->base;
 355
 356 cleanup_surface:
 357    free(dri2_surf);
 358
 359    return NULL;
 360 }
 361
 362 static _EGLSurface *
 363 droid_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
 364                             _EGLConfig *conf, void *native_window,
 365                             const EGLint *attrib_list)
 366 {
 367    return droid_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
 368                                native_window, attrib_list);
 369 }
 370
 371 static _EGLSurface *
 372 droid_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
 373                             _EGLConfig *conf, const EGLint *attrib_list)
 374 {
 375    return droid_create_surface(drv, disp, EGL_PBUFFER_BIT, conf,
 376                               NULL, attrib_list);
 377 }
 378
 379 static EGLBoolean
 380 droid_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
 381 {
 382    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 383    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
 384
 385    droid_free_local_buffers(dri2_surf);
 386
 387    if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 388       if (dri2_surf->buffer)
 389          droid_window_cancel_buffer(disp, dri2_surf);
 390
 391       dri2_surf->window->common.decRef(&dri2_surf->window->common);
 392    }
 393
 394    if (dri2_surf->dri_image_back) {
 395       _eglLog(_EGL_DEBUG, "%s : %d : destroy dri_image_back", __func__, __LINE__);
 396       dri2_dpy->image->destroyImage(dri2_surf->dri_image_back);
 397       dri2_surf->dri_image_back = NULL;
 398    }
 399
 400    if (dri2_surf->dri_image_front) {
 401       _eglLog(_EGL_DEBUG, "%s : %d : destroy dri_image_front", __func__, __LINE__);
 402       dri2_dpy->image->destroyImage(dri2_surf->dri_image_front);
 403       dri2_surf->dri_image_front = NULL;
 404    }
 405
 406    dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
 407
 408    free(dri2_surf);
 409
 410    return EGL_TRUE;
 411 }
 412
 413 static int
 414 update_buffers(struct dri2_egl_surface *dri2_surf)
 415 {
 416    if (dri2_surf->base.Type != EGL_WINDOW_BIT)
 417       return 0;
 418
 419    /* try to dequeue the next back buffer */
 420    if (!dri2_surf->buffer && !droid_window_dequeue_buffer(dri2_surf)) {
 421       _eglLog(_EGL_WARNING, "Could not dequeue buffer from native window");
 422       return -1;
 423    }
 424
 425    /* free outdated buffers and update the surface size */
 426    if (dri2_surf->base.Width != dri2_surf->buffer->width ||
 427        dri2_surf->base.Height != dri2_surf->buffer->height) {
 428       droid_free_local_buffers(dri2_surf);
 429       dri2_surf->base.Width = dri2_surf->buffer->width;
 430       dri2_surf->base.Height = dri2_surf->buffer->height;
 431    }
 432
 433    return 0;
 434 }
 435
 436 static int
 437 get_front_bo(struct dri2_egl_surface *dri2_surf, unsigned int format)
 438 {
 439    struct dri2_egl_display *dri2_dpy =
 440       dri2_egl_display(dri2_surf->base.Resource.Display);
 441
 442    if (dri2_surf->dri_image_front)
 443       return 0;
 444
 445    if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 446       /* According current EGL spec, front buffer rendering
 447        * for window surface is not supported now.
 448        * and mesa doesn't have the implementation of this case.
 449        * Add warning message, but not treat it as error.
 450        */
 451       _eglLog(_EGL_DEBUG, "DRI driver requested unsupported front buffer for window surface");
 452    } else if (dri2_surf->base.Type == EGL_PBUFFER_BIT) {
 453       dri2_surf->dri_image_front =
 454           dri2_dpy->image->createImage(dri2_dpy->dri_screen,
 455                                               dri2_surf->base.Width,
 456                                               dri2_surf->base.Height,
 457                                               format,
 458                                               0,
 459                                               dri2_surf);
 460       if (!dri2_surf->dri_image_front) {
 461          _eglLog(_EGL_WARNING, "dri2_image_front allocation failed");
 462          return -1;
 463       }
 464    }
 465
 466    return 0;
 467 }
 468
 469 static int
 470 get_back_bo(struct dri2_egl_surface *dri2_surf, unsigned int format)
 471 {
 472    struct dri2_egl_display *dri2_dpy =
 473       dri2_egl_display(dri2_surf->base.Resource.Display);
 474    int fourcc, pitch;
 475    int offset = 0, fd;
 476
 477    if (dri2_surf->dri_image_back)
 478       return 0;
 479
 480    if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 481       if (!dri2_surf->buffer) {
 482          _eglLog(_EGL_WARNING, "Could not get native buffer");
 483          return -1;
 484       }
 485
 486       fd = get_native_buffer_fd(dri2_surf->buffer);
 487       if (fd < 0) {
 488          _eglLog(_EGL_WARNING, "Could not get native buffer FD");
 489          return -1;
 490       }
 491
 492       fourcc = get_fourcc(dri2_surf->buffer->format);
 493
 494       pitch = dri2_surf->buffer->stride *
 495          get_format_bpp(dri2_surf->buffer->format);
 496
 497       if (fourcc == -1 || pitch == 0) {
 498          _eglLog(_EGL_WARNING, "Invalid buffer fourcc(%x) or pitch(%d)",
 499                  fourcc, pitch);
 500          return -1;
 501       }
 502
 503       dri2_surf->dri_image_back =
 504          dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
 505                                              dri2_surf->base.Width,
 506                                              dri2_surf->base.Height,
 507                                              fourcc,
 508                                              &fd,
 509                                              1,
 510                                              &pitch,
 511                                              &offset,
 512                                              dri2_surf);
 513       if (!dri2_surf->dri_image_back) {
 514          _eglLog(_EGL_WARNING, "failed to create DRI image from FD");
 515          return -1;
 516       }
 517    } else if (dri2_surf->base.Type == EGL_PBUFFER_BIT) {
 518       /* The EGL 1.5 spec states that pbuffers are single-buffered. Specifically,
 519        * the spec states that they have a back buffer but no front buffer, in
 520        * contrast to pixmaps, which have a front buffer but no back buffer.
 521        *
 522        * Single-buffered surfaces with no front buffer confuse Mesa; so we deviate
 523        * from the spec, following the precedent of Mesa's EGL X11 platform. The
 524        * X11 platform correctly assigns pbuffers to single-buffered configs, but
 525        * assigns the pbuffer a front buffer instead of a back buffer.
 526        *
 527        * Pbuffers in the X11 platform mostly work today, so let's just copy its
 528        * behavior instead of trying to fix (and hence potentially breaking) the
 529        * world.
 530        */
 531       _eglLog(_EGL_DEBUG, "DRI driver requested unsupported back buffer for pbuffer surface");
 532    }
 533
 534    return 0;
 535 }
 536
 537 /* Some drivers will pass multiple bits in buffer_mask.
 538  * For such case, will go through all the bits, and
 539  * will not return error when unsupported buffer is requested, only
 540  * return error when the allocation for supported buffer failed.
 541  */
 542 static int
 543 droid_image_get_buffers(__DRIdrawable *driDrawable,
 544                   unsigned int format,
 545                   uint32_t *stamp,
 546                   void *loaderPrivate,
 547                   uint32_t buffer_mask,
 548                   struct __DRIimageList *images)
 549 {
 550    struct dri2_egl_surface *dri2_surf = loaderPrivate;
 551
 552    images->image_mask = 0;
 553    images->front = NULL;
 554    images->back = NULL;
 555
 556    if (update_buffers(dri2_surf) < 0)
 557       return 0;
 558
 559    if (buffer_mask & __DRI_IMAGE_BUFFER_FRONT) {
 560       if (get_front_bo(dri2_surf, format) < 0)
 561          return 0;
 562
 563       if (dri2_surf->dri_image_front) {
 564          images->front = dri2_surf->dri_image_front;
 565          images->image_mask |= __DRI_IMAGE_BUFFER_FRONT;
 566       }
 567    }
 568
 569    if (buffer_mask & __DRI_IMAGE_BUFFER_BACK) {
 570       if (get_back_bo(dri2_surf, format) < 0)
 571          return 0;
 572
 573       if (dri2_surf->dri_image_back) {
 574          images->back = dri2_surf->dri_image_back;
 575          images->image_mask |= __DRI_IMAGE_BUFFER_BACK;
 576       }
 577    }
 578
 579    return 1;
 580 }
 581
 582 static EGLBoolean
 583 droid_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
 584 {
 585    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 586    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
 587
 588    if (dri2_surf->base.Type != EGL_WINDOW_BIT)
 589       return EGL_TRUE;
 590
 591    dri2_flush_drawable_for_swapbuffers(disp, draw);
 592
 593    if (dri2_surf->buffer)
 594       droid_window_enqueue_buffer(disp, dri2_surf);
 595
 596    dri2_dpy->flush->invalidate(dri2_surf->dri_drawable);
 597
 598    return EGL_TRUE;
 599 }
 600
 601 static _EGLImage *
 602 droid_create_image_from_prime_fd_yuv(_EGLDisplay *disp, _EGLContext *ctx,
 603                                      struct ANativeWindowBuffer *buf, int fd)
 604 {
 605    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 606    struct android_ycbcr ycbcr;
 607    size_t offsets[3];
 608    size_t pitches[3];
 609    int is_ycrcb;
 610    int fourcc;
 611    int ret;
 612
 613    if (!dri2_dpy->gralloc->lock_ycbcr) {
 614       _eglLog(_EGL_WARNING, "Gralloc does not support lock_ycbcr");
 615       return NULL;
 616    }
 617
 618    memset(&ycbcr, 0, sizeof(ycbcr));
 619    ret = dri2_dpy->gralloc->lock_ycbcr(dri2_dpy->gralloc, buf->handle,
 620                                        0, 0, 0, 0, 0, &ycbcr);
 621    if (ret) {
 622       _eglLog(_EGL_WARNING, "gralloc->lock_ycbcr failed: %d", ret);
 623       return NULL;
 624    }
 625    dri2_dpy->gralloc->unlock(dri2_dpy->gralloc, buf->handle);
 626
 627    /* When lock_ycbcr's usage argument contains no SW_READ/WRITE flags
 628     * it will return the .y/.cb/.cr pointers based on a NULL pointer,
 629     * so they can be interpreted as offsets. */
 630    offsets[0] = (size_t)ycbcr.y;
 631    /* We assume here that all the planes are located in one DMA-buf. */
 632    is_ycrcb = (size_t)ycbcr.cb < (size_t)ycbcr.cr;
 633    if (is_ycrcb) {
 634       offsets[1] = (size_t)ycbcr.cr;
 635       offsets[2] = (size_t)ycbcr.cb;
 636    } else {
 637       offsets[1] = (size_t)ycbcr.cb;
 638       offsets[2] = (size_t)ycbcr.cr;
 639    }
 640
 641    /* .ystride is the line length (in bytes) of the Y plane,
 642     * .cstride is the line length (in bytes) of any of the remaining
 643     * Cb/Cr/CbCr planes, assumed to be the same for Cb and Cr for fully
 644     * planar formats. */
 645    pitches[0] = ycbcr.ystride;
 646    pitches[1] = pitches[2] = ycbcr.cstride;
 647
 648    /* .chroma_step is the byte distance between the same chroma channel
 649     * values of subsequent pixels, assumed to be the same for Cb and Cr. */
 650    fourcc = get_fourcc_yuv(buf->format, is_ycrcb, ycbcr.chroma_step);
 651    if (fourcc == -1) {
 652       _eglLog(_EGL_WARNING, "unsupported YUV format, native = %x, is_ycrcb = %d, chroma_step = %d",
 653               buf->format, is_ycrcb, ycbcr.chroma_step);
 654       return NULL;
 655    }
 656
 657    if (ycbcr.chroma_step == 2) {
 658       /* Semi-planar Y + CbCr or Y + CbCr format. */
 659       const EGLint attr_list_2plane[] = {
 660          EGL_WIDTH, buf->width,
 661          EGL_HEIGHT, buf->height,
 662          EGL_LINUX_DRM_FOURCC_EXT, fourcc,
 663          EGL_DMA_BUF_PLANE0_FD_EXT, fd,
 664          EGL_DMA_BUF_PLANE0_PITCH_EXT, pitches[0],
 665          EGL_DMA_BUF_PLANE0_OFFSET_EXT, offsets[0],
 666          EGL_DMA_BUF_PLANE1_FD_EXT, fd,
 667          EGL_DMA_BUF_PLANE1_PITCH_EXT, pitches[1],
 668          EGL_DMA_BUF_PLANE1_OFFSET_EXT, offsets[1],
 669          EGL_NONE, 0
 670       };
 671
 672       return dri2_create_image_dma_buf(disp, ctx, NULL, attr_list_2plane);
 673    } else {
 674       /* Fully planar Y + Cb + Cr or Y + Cr + Cb format. */
 675       const EGLint attr_list_3plane[] = {
 676          EGL_WIDTH, buf->width,
 677          EGL_HEIGHT, buf->height,
 678          EGL_LINUX_DRM_FOURCC_EXT, fourcc,
 679          EGL_DMA_BUF_PLANE0_FD_EXT, fd,
 680          EGL_DMA_BUF_PLANE0_PITCH_EXT, pitches[0],
 681          EGL_DMA_BUF_PLANE0_OFFSET_EXT, offsets[0],
 682          EGL_DMA_BUF_PLANE1_FD_EXT, fd,
 683          EGL_DMA_BUF_PLANE1_PITCH_EXT, pitches[1],
 684          EGL_DMA_BUF_PLANE1_OFFSET_EXT, offsets[1],
 685          EGL_DMA_BUF_PLANE2_FD_EXT, fd,
 686          EGL_DMA_BUF_PLANE2_PITCH_EXT, pitches[2],
 687          EGL_DMA_BUF_PLANE2_OFFSET_EXT, offsets[2],
 688          EGL_NONE, 0
 689       };
 690
 691       return dri2_create_image_dma_buf(disp, ctx, NULL, attr_list_3plane);
 692    }
 693 }
 694
 695 static _EGLImage *
 696 droid_create_image_from_prime_fd(_EGLDisplay *disp, _EGLContext *ctx,
 697                                  struct ANativeWindowBuffer *buf, int fd)
 698 {
 699    unsigned int pitch;
 700
 701    if (is_yuv(buf->format))
 702       return droid_create_image_from_prime_fd_yuv(disp, ctx, buf, fd);
 703
 704    const int fourcc = get_fourcc(buf->format);
 705    if (fourcc == -1) {
 706       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 707       return NULL;
 708    }
 709
 710    pitch = buf->stride * get_format_bpp(buf->format);
 711    if (pitch == 0) {
 712       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 713       return NULL;
 714    }
 715
 716    const EGLint attr_list[] = {
 717       EGL_WIDTH, buf->width,
 718       EGL_HEIGHT, buf->height,
 719       EGL_LINUX_DRM_FOURCC_EXT, fourcc,
 720       EGL_DMA_BUF_PLANE0_FD_EXT, fd,
 721       EGL_DMA_BUF_PLANE0_PITCH_EXT, pitch,
 722       EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0,
 723       EGL_NONE, 0
 724    };
 725
 726    return dri2_create_image_dma_buf(disp, ctx, NULL, attr_list);
 727 }
 728
 729 static _EGLImage *
 730 droid_create_image_from_name(_EGLDisplay *disp, _EGLContext *ctx,
 731                              struct ANativeWindowBuffer *buf)
 732 {
 733    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 734    struct dri2_egl_image *dri2_img;
 735    int name;
 736    int format;
 737
 738    name = get_native_buffer_name(buf);
 739    if (!name) {
 740       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 741       return NULL;
 742    }
 743
 744    format = get_format(buf->format);
 745    if (format == -1)
 746        return NULL;
 747
 748    dri2_img = calloc(1, sizeof(*dri2_img));
 749    if (!dri2_img) {
 750       _eglError(EGL_BAD_ALLOC, "droid_create_image_mesa_drm");
 751       return NULL;
 752    }
 753
 754    if (!_eglInitImage(&dri2_img->base, disp)) {
 755       free(dri2_img);
 756       return NULL;
 757    }
 758
 759    dri2_img->dri_image =
 760       dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
 761                                            buf->width,
 762                                            buf->height,
 763                                            format,
 764                                            name,
 765                                            buf->stride,
 766                                            dri2_img);
 767    if (!dri2_img->dri_image) {
 768       free(dri2_img);
 769       _eglError(EGL_BAD_ALLOC, "droid_create_image_mesa_drm");
 770       return NULL;
 771    }
 772
 773    return &dri2_img->base;
 774 }
 775
 776 static EGLBoolean
 777 droid_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
 778                     EGLint attribute, EGLint *value)
 779 {
 780    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
 781    switch (attribute) {
 782       case EGL_WIDTH:
 783          if (dri2_surf->base.Type == EGL_WINDOW_BIT && dri2_surf->window) {
 784             dri2_surf->window->query(dri2_surf->window,
 785                                      NATIVE_WINDOW_DEFAULT_WIDTH, value);
 786             return EGL_TRUE;
 787          }
 788          break;
 789       case EGL_HEIGHT:
 790          if (dri2_surf->base.Type == EGL_WINDOW_BIT && dri2_surf->window) {
 791             dri2_surf->window->query(dri2_surf->window,
 792                                      NATIVE_WINDOW_DEFAULT_HEIGHT, value);
 793             return EGL_TRUE;
 794          }
 795          break;
 796       default:
 797          break;
 798    }
 799    return _eglQuerySurface(drv, dpy, surf, attribute, value);
 800 }
 801
 802 static _EGLImage *
 803 dri2_create_image_android_native_buffer(_EGLDisplay *disp,
 804                                         _EGLContext *ctx,
 805                                         struct ANativeWindowBuffer *buf)
 806 {
 807    int fd;
 808
 809    if (ctx != NULL) {
 810       /* From the EGL_ANDROID_image_native_buffer spec:
 811        *
 812        *     * If <target> is EGL_NATIVE_BUFFER_ANDROID and <ctx> is not
 813        *       EGL_NO_CONTEXT, the error EGL_BAD_CONTEXT is generated.
 814        */
 815       _eglError(EGL_BAD_CONTEXT, "eglCreateEGLImageKHR: for "
 816                 "EGL_NATIVE_BUFFER_ANDROID, the context must be "
 817                 "EGL_NO_CONTEXT");
 818       return NULL;
 819    }
 820
 821    if (!buf || buf->common.magic != ANDROID_NATIVE_BUFFER_MAGIC ||
 822        buf->common.version != sizeof(*buf)) {
 823       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 824       return NULL;
 825    }
 826
 827    fd = get_native_buffer_fd(buf);
 828    if (fd >= 0)
 829       return droid_create_image_from_prime_fd(disp, ctx, buf, fd);
 830
 831    return droid_create_image_from_name(disp, ctx, buf);
 832 }
 833
 834 static _EGLImage *
 835 droid_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
 836                        _EGLContext *ctx, EGLenum target,
 837                        EGLClientBuffer buffer, const EGLint *attr_list)
 838 {
 839    switch (target) {
 840    case EGL_NATIVE_BUFFER_ANDROID:
 841       return dri2_create_image_android_native_buffer(disp, ctx,
 842             (struct ANativeWindowBuffer *) buffer);
 843    default:
 844       return dri2_create_image_khr(drv, disp, ctx, target, buffer, attr_list);
 845    }
 846 }
 847
 848 static void
 849 droid_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
 850 {
 851 }
 852
 853 static int
 854 droid_get_buffers_parse_attachments(struct dri2_egl_surface *dri2_surf,
 855                                     unsigned int *attachments, int count)
 856 {
 857    int num_buffers = 0, i;
 858
 859    /* fill dri2_surf->buffers */
 860    for (i = 0; i < count * 2; i += 2) {
 861       __DRIbuffer *buf, *local;
 862
 863       assert(num_buffers < ARRAY_SIZE(dri2_surf->buffers));
 864       buf = &dri2_surf->buffers[num_buffers];
 865
 866       switch (attachments[i]) {
 867       case __DRI_BUFFER_BACK_LEFT:
 868          if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 869             buf->attachment = attachments[i];
 870             buf->name = get_native_buffer_name(dri2_surf->buffer);
 871             buf->cpp = get_format_bpp(dri2_surf->buffer->format);
 872             buf->pitch = dri2_surf->buffer->stride * buf->cpp;
 873             buf->flags = 0;
 874
 875             if (buf->name)
 876                num_buffers++;
 877
 878             break;
 879          }
 880          /* fall through for pbuffers */
 881       case __DRI_BUFFER_DEPTH:
 882       case __DRI_BUFFER_STENCIL:
 883       case __DRI_BUFFER_ACCUM:
 884       case __DRI_BUFFER_DEPTH_STENCIL:
 885       case __DRI_BUFFER_HIZ:
 886          local = droid_alloc_local_buffer(dri2_surf,
 887                attachments[i], attachments[i + 1]);
 888
 889          if (local) {
 890             *buf = *local;
 891             num_buffers++;
 892          }
 893          break;
 894       case __DRI_BUFFER_FRONT_LEFT:
 895       case __DRI_BUFFER_FRONT_RIGHT:
 896       case __DRI_BUFFER_FAKE_FRONT_LEFT:
 897       case __DRI_BUFFER_FAKE_FRONT_RIGHT:
 898       case __DRI_BUFFER_BACK_RIGHT:
 899       default:
 900          /* no front or right buffers */
 901          break;
 902       }
 903    }
 904
 905    return num_buffers;
 906 }
 907
 908 static __DRIbuffer *
 909 droid_get_buffers_with_format(__DRIdrawable * driDrawable,
 910                              int *width, int *height,
 911                              unsigned int *attachments, int count,
 912                              int *out_count, void *loaderPrivate)
 913 {
 914    struct dri2_egl_surface *dri2_surf = loaderPrivate;
 915
 916    if (update_buffers(dri2_surf) < 0)
 917       return NULL;
 918
 919    dri2_surf->buffer_count =
 920       droid_get_buffers_parse_attachments(dri2_surf, attachments, count);
 921
 922    if (width)
 923       *width = dri2_surf->base.Width;
 924    if (height)
 925       *height = dri2_surf->base.Height;
 926
 927    *out_count = dri2_surf->buffer_count;
 928
 929    return dri2_surf->buffers;
 930 }
 931
 932 static EGLBoolean
 933 droid_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *dpy)
 934 {
 935    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
 936    static const struct {
 937       int format;
 938       unsigned int rgba_masks[4];
 939    } visuals[] = {
 940       { HAL_PIXEL_FORMAT_RGBA_8888, { 0xff, 0xff00, 0xff0000, 0xff000000 } },
 941       { HAL_PIXEL_FORMAT_RGBX_8888, { 0xff, 0xff00, 0xff0000, 0x0 } },
 942       { HAL_PIXEL_FORMAT_RGB_565,   { 0xf800, 0x7e0, 0x1f, 0x0 } },
 943       { HAL_PIXEL_FORMAT_BGRA_8888, { 0xff0000, 0xff00, 0xff, 0xff000000 } },
 944    };
 945    EGLint config_attrs[] = {
 946      EGL_NATIVE_VISUAL_ID,   0,
 947      EGL_NATIVE_VISUAL_TYPE, 0,
 948      EGL_FRAMEBUFFER_TARGET_ANDROID, EGL_TRUE,
 949      EGL_RECORDABLE_ANDROID, EGL_TRUE,
 950      EGL_NONE
 951    };
 952    unsigned int format_count[ARRAY_SIZE(visuals)] = { 0 };
 953    int count, i, j;
 954
 955    count = 0;
 956    for (i = 0; dri2_dpy->driver_configs[i]; i++) {
 957       const EGLint surface_type = EGL_WINDOW_BIT | EGL_PBUFFER_BIT;
 958       struct dri2_egl_config *dri2_conf;
 959
 960       for (j = 0; j < ARRAY_SIZE(visuals); j++) {
 961          config_attrs[1] = visuals[j].format;
 962          config_attrs[3] = visuals[j].format;
 963
 964          dri2_conf = dri2_add_config(dpy, dri2_dpy->driver_configs[i],
 965                count + 1, surface_type, config_attrs, visuals[j].rgba_masks);
 966          if (dri2_conf) {
 967             count++;
 968             format_count[j]++;
 969          }
 970       }
 971    }
 972
 973    for (i = 0; i < ARRAY_SIZE(format_count); i++) {
 974       if (!format_count[i]) {
 975          _eglLog(_EGL_DEBUG, "No DRI config supports native format 0x%x",
 976                  visuals[i].format);
 977       }
 978    }
 979
 980    return (count != 0);
 981 }
 982
 983 static int
 984 droid_open_device(struct dri2_egl_display *dri2_dpy)
 985 {
 986    int fd = -1, err = -EINVAL;
 987
 988    if (dri2_dpy->gralloc->perform)
 989          err = dri2_dpy->gralloc->perform(dri2_dpy->gralloc,
 990                                           GRALLOC_MODULE_PERFORM_GET_DRM_FD,
 991                                           &fd);
 992    if (err || fd < 0) {
 993       _eglLog(_EGL_WARNING, "fail to get drm fd");
 994       fd = -1;
 995    }
 996
 997    return (fd >= 0) ? fcntl(fd, F_DUPFD_CLOEXEC, 3) : -1;
 998 }
 999
1000 /* support versions < JellyBean */
1001 #ifndef ALOGW
1002 #define ALOGW LOGW
1003 #endif
1004 #ifndef ALOGD
1005 #define ALOGD LOGD
1006 #endif
1007 #ifndef ALOGI
1008 #define ALOGI LOGI
1009 #endif
1010
1011 static void
1012 droid_log(EGLint level, const char *msg)
1013 {
1014    switch (level) {
1015    case _EGL_DEBUG:
1016       ALOGD("%s", msg);
1017       break;
1018    case _EGL_INFO:
1019       ALOGI("%s", msg);
1020       break;
1021    case _EGL_WARNING:
1022       ALOGW("%s", msg);
1023       break;
1024    case _EGL_FATAL:
1025       LOG_FATAL("%s", msg);
1026       break;
1027    default:
1028       break;
1029    }
1030 }
1031
1032 static struct dri2_egl_display_vtbl droid_display_vtbl = {
1033    .authenticate = NULL,
1034    .create_window_surface = droid_create_window_surface,
1035    .create_pixmap_surface = dri2_fallback_create_pixmap_surface,
1036    .create_pbuffer_surface = droid_create_pbuffer_surface,
1037    .destroy_surface = droid_destroy_surface,
1038    .create_image = droid_create_image_khr,
1039    .swap_interval = dri2_fallback_swap_interval,
1040    .swap_buffers = droid_swap_buffers,
1041    .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage,
1042    .swap_buffers_region = dri2_fallback_swap_buffers_region,
1043    .post_sub_buffer = dri2_fallback_post_sub_buffer,
1044    .copy_buffers = dri2_fallback_copy_buffers,
1045    .query_buffer_age = dri2_fallback_query_buffer_age,
1046    .query_surface = droid_query_surface,
1047    .create_wayland_buffer_from_image = dri2_fallback_create_wayland_buffer_from_image,
1048    .get_sync_values = dri2_fallback_get_sync_values,
1049    .get_dri_drawable = dri2_surface_get_dri_drawable,
1050 };
1051
1052 static const __DRIdri2LoaderExtension droid_dri2_loader_extension = {
1053    .base = { __DRI_DRI2_LOADER, 3 },
1054
1055    .getBuffers           = NULL,
1056    .flushFrontBuffer     = droid_flush_front_buffer,
1057    .getBuffersWithFormat = droid_get_buffers_with_format,
1058 };
1059
1060 static const __DRIimageLoaderExtension droid_image_loader_extension = {
1061    .base = { __DRI_IMAGE_LOADER, 1 },
1062
1063    .getBuffers          = droid_image_get_buffers,
1064    .flushFrontBuffer    = droid_flush_front_buffer,
1065 };
1066
1067 static const __DRIextension *droid_dri2_loader_extensions[] = {
1068    &droid_dri2_loader_extension.base,
1069    &image_lookup_extension.base,
1070    &use_invalidate.base,
1071    NULL,
1072 };
1073
1074 static const __DRIextension *droid_image_loader_extensions[] = {
1075    &droid_image_loader_extension.base,
1076    &image_lookup_extension.base,
1077    &use_invalidate.base,
1078    NULL,
1079 };
1080
1081 EGLBoolean
1082 dri2_initialize_android(_EGLDriver *drv, _EGLDisplay *dpy)
1083 {
1084    struct dri2_egl_display *dri2_dpy;
1085    const char *err;
1086    int ret;
1087
1088    _eglSetLogProc(droid_log);
1089
1090    loader_set_logger(_eglLog);
1091
1092    dri2_dpy = calloc(1, sizeof(*dri2_dpy));
1093    if (!dri2_dpy)
1094       return _eglError(EGL_BAD_ALLOC, "eglInitialize");
1095
1096    ret = hw_get_module(GRALLOC_HARDWARE_MODULE_ID,
1097                        (const hw_module_t **)&dri2_dpy->gralloc);
1098    if (ret) {
1099       err = "DRI2: failed to get gralloc module";
1100       goto cleanup_display;
1101    }
1102
1103    dpy->DriverData = (void *) dri2_dpy;
1104
1105    dri2_dpy->fd = droid_open_device(dri2_dpy);
1106    if (dri2_dpy->fd < 0) {
1107       err = "DRI2: failed to open device";
1108       goto cleanup_display;
1109    }
1110
1111    dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd);
1112    if (dri2_dpy->driver_name == NULL) {
1113       err = "DRI2: failed to get driver name";
1114       goto cleanup_device;
1115    }
1116
1117    if (!dri2_load_driver(dpy)) {
1118       err = "DRI2: failed to load driver";
1119       goto cleanup_driver_name;
1120    }
1121
1122    dri2_dpy->is_render_node = drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER;
1123
1124    /* render nodes cannot use Gem names, and thus do not support
1125     * the __DRI_DRI2_LOADER extension */
1126    if (!dri2_dpy->is_render_node)
1127       dri2_dpy->loader_extensions = droid_dri2_loader_extensions;
1128    else
1129       dri2_dpy->loader_extensions = droid_image_loader_extensions;
1130
1131    if (!dri2_create_screen(dpy)) {
1132       err = "DRI2: failed to create screen";
1133       goto cleanup_driver;
1134    }
1135
1136    if (!droid_add_configs_for_visuals(drv, dpy)) {
1137       err = "DRI2: failed to add configs";
1138       goto cleanup_screen;
1139    }
1140
1141    dpy->Extensions.ANDROID_framebuffer_target = EGL_TRUE;
1142    dpy->Extensions.ANDROID_image_native_buffer = EGL_TRUE;
1143    dpy->Extensions.ANDROID_recordable = EGL_TRUE;
1144
1145    /* Fill vtbl last to prevent accidentally calling virtual function during
1146     * initialization.
1147     */
1148    dri2_dpy->vtbl = &droid_display_vtbl;
1149
1150    return EGL_TRUE;
1151
1152 cleanup_screen:
1153    dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
1154 cleanup_driver:
1155    dlclose(dri2_dpy->driver);
1156 cleanup_driver_name:
1157    free(dri2_dpy->driver_name);
1158 cleanup_device:
1159    close(dri2_dpy->fd);
1160 cleanup_display:
1161    free(dri2_dpy);
1162    dpy->DriverData = NULL;
1163
1164    return _eglError(EGL_NOT_INITIALIZED, err);
1165 }