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
  35 #if ANDROID_VERSION >= 0x402
  36 #include <sync/sync.h>
  37 #endif
  38
  39 #include "loader.h"
  40 #include "egl_dri2.h"
  41 #include "egl_dri2_fallbacks.h"
  42 #include "gralloc_drm.h"
  43
  44 #define ALIGN(val, align)       (((val) + (align) - 1) & ~((align) - 1))
  45
  46 static int
  47 get_format_bpp(int native)
  48 {
  49    int bpp;
  50
  51    switch (native) {
  52    case HAL_PIXEL_FORMAT_RGBA_8888:
  53    case HAL_PIXEL_FORMAT_RGBX_8888:
  54    case HAL_PIXEL_FORMAT_BGRA_8888:
  55       bpp = 4;
  56       break;
  57    case HAL_PIXEL_FORMAT_RGB_565:
  58       bpp = 2;
  59       break;
  60    case HAL_PIXEL_FORMAT_YV12:
  61       bpp = 1;
  62       break;
  63    default:
  64       bpp = 0;
  65       break;
  66    }
  67
  68    return bpp;
  69 }
  70
  71 /* createImageFromFds requires fourcc format */
  72 static int get_fourcc(int native)
  73 {
  74    switch (native) {
  75    case HAL_PIXEL_FORMAT_RGB_565:   return __DRI_IMAGE_FOURCC_RGB565;
  76    case HAL_PIXEL_FORMAT_BGRA_8888: return __DRI_IMAGE_FOURCC_ARGB8888;
  77    case HAL_PIXEL_FORMAT_RGBA_8888: return __DRI_IMAGE_FOURCC_ABGR8888;
  78    case HAL_PIXEL_FORMAT_RGBX_8888: return __DRI_IMAGE_FOURCC_XBGR8888;
  79    case HAL_PIXEL_FORMAT_YV12:      return __DRI_IMAGE_FOURCC_YVU420;
  80    default:
  81       _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", native);
  82    }
  83    return -1;
  84 }
  85
  86 static int get_format(int format)
  87 {
  88    switch (format) {
  89    case HAL_PIXEL_FORMAT_BGRA_8888: return __DRI_IMAGE_FORMAT_ARGB8888;
  90    case HAL_PIXEL_FORMAT_RGB_565:   return __DRI_IMAGE_FORMAT_RGB565;
  91    case HAL_PIXEL_FORMAT_RGBA_8888: return __DRI_IMAGE_FORMAT_ABGR8888;
  92    case HAL_PIXEL_FORMAT_RGBX_8888: return __DRI_IMAGE_FORMAT_XBGR8888;
  93    default:
  94       _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", format);
  95    }
  96    return -1;
  97 }
  98
  99 static int
 100 get_native_buffer_fd(struct ANativeWindowBuffer *buf)
 101 {
 102    native_handle_t *handle = (native_handle_t *)buf->handle;
 103    /*
 104     * Various gralloc implementations exist, but the dma-buf fd tends
 105     * to be first. Access it directly to avoid a dependency on specific
 106     * gralloc versions.
 107     */
 108    return (handle && handle->numFds) ? handle->data[0] : -1;
 109 }
 110
 111 static int
 112 get_native_buffer_name(struct ANativeWindowBuffer *buf)
 113 {
 114    return gralloc_drm_get_gem_handle(buf->handle);
 115 }
 116
 117 static EGLBoolean
 118 droid_window_dequeue_buffer(struct dri2_egl_surface *dri2_surf)
 119 {
 120 #if ANDROID_VERSION >= 0x0402
 121    int fence_fd;
 122
 123    if (dri2_surf->window->dequeueBuffer(dri2_surf->window, &dri2_surf->buffer,
 124                                         &fence_fd))
 125       return EGL_FALSE;
 126
 127    /* If access to the buffer is controlled by a sync fence, then block on the
 128     * fence.
 129     *
 130     * It may be more performant to postpone blocking until there is an
 131     * immediate need to write to the buffer. But doing so would require adding
 132     * hooks to the DRI2 loader.
 133     *
 134     * From the ANativeWindow::dequeueBuffer documentation:
 135     *
 136     *    The libsync fence file descriptor returned in the int pointed to by
 137     *    the fenceFd argument will refer to the fence that must signal
 138     *    before the dequeued buffer may be written to.  A value of -1
 139     *    indicates that the caller may access the buffer immediately without
 140     *    waiting on a fence.  If a valid file descriptor is returned (i.e.
 141     *    any value except -1) then the caller is responsible for closing the
 142     *    file descriptor.
 143     */
 144     if (fence_fd >= 0) {
 145        /* From the SYNC_IOC_WAIT documentation in <linux/sync.h>:
 146         *
 147         *    Waits indefinitely if timeout < 0.
 148         */
 149         int timeout = -1;
 150         sync_wait(fence_fd, timeout);
 151         close(fence_fd);
 152    }
 153
 154    dri2_surf->buffer->common.incRef(&dri2_surf->buffer->common);
 155 #else
 156    if (dri2_surf->window->dequeueBuffer(dri2_surf->window, &dri2_surf->buffer))
 157       return EGL_FALSE;
 158
 159    dri2_surf->buffer->common.incRef(&dri2_surf->buffer->common);
 160    dri2_surf->window->lockBuffer(dri2_surf->window, dri2_surf->buffer);
 161 #endif
 162
 163    return EGL_TRUE;
 164 }
 165
 166 static EGLBoolean
 167 droid_window_enqueue_buffer(_EGLDisplay *disp, struct dri2_egl_surface *dri2_surf)
 168 {
 169    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 170
 171    /* To avoid blocking other EGL calls, release the display mutex before
 172     * we enter droid_window_enqueue_buffer() and re-acquire the mutex upon
 173     * return.
 174     */
 175    mtx_unlock(&disp->Mutex);
 176
 177 #if ANDROID_VERSION >= 0x0402
 178    /* Queue the buffer without a sync fence. This informs the ANativeWindow
 179     * that it may access the buffer immediately.
 180     *
 181     * From ANativeWindow::dequeueBuffer:
 182     *
 183     *    The fenceFd argument specifies a libsync fence file descriptor for
 184     *    a fence that must signal before the buffer can be accessed.  If
 185     *    the buffer can be accessed immediately then a value of -1 should
 186     *    be used.  The caller must not use the file descriptor after it
 187     *    is passed to queueBuffer, and the ANativeWindow implementation
 188     *    is responsible for closing it.
 189     */
 190    int fence_fd = -1;
 191    dri2_surf->window->queueBuffer(dri2_surf->window, dri2_surf->buffer,
 192                                   fence_fd);
 193 #else
 194    dri2_surf->window->queueBuffer(dri2_surf->window, dri2_surf->buffer);
 195 #endif
 196
 197    dri2_surf->buffer->common.decRef(&dri2_surf->buffer->common);
 198    dri2_surf->buffer = NULL;
 199
 200    mtx_lock(&disp->Mutex);
 201
 202    if (dri2_surf->dri_image_back) {
 203       dri2_dpy->image->destroyImage(dri2_surf->dri_image_back);
 204       dri2_surf->dri_image_back = NULL;
 205    }
 206
 207    return EGL_TRUE;
 208 }
 209
 210 static void
 211 droid_window_cancel_buffer(_EGLDisplay *disp, struct dri2_egl_surface *dri2_surf)
 212 {
 213    /* no cancel buffer? */
 214    droid_window_enqueue_buffer(disp, dri2_surf);
 215 }
 216
 217 static __DRIbuffer *
 218 droid_alloc_local_buffer(struct dri2_egl_surface *dri2_surf,
 219                          unsigned int att, unsigned int format)
 220 {
 221    struct dri2_egl_display *dri2_dpy =
 222       dri2_egl_display(dri2_surf->base.Resource.Display);
 223
 224    if (att >= ARRAY_SIZE(dri2_surf->local_buffers))
 225       return NULL;
 226
 227    if (!dri2_surf->local_buffers[att]) {
 228       dri2_surf->local_buffers[att] =
 229          dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen, att, format,
 230                dri2_surf->base.Width, dri2_surf->base.Height);
 231    }
 232
 233    return dri2_surf->local_buffers[att];
 234 }
 235
 236 static void
 237 droid_free_local_buffers(struct dri2_egl_surface *dri2_surf)
 238 {
 239    struct dri2_egl_display *dri2_dpy =
 240       dri2_egl_display(dri2_surf->base.Resource.Display);
 241    int i;
 242
 243    for (i = 0; i < ARRAY_SIZE(dri2_surf->local_buffers); i++) {
 244       if (dri2_surf->local_buffers[i]) {
 245          dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
 246                dri2_surf->local_buffers[i]);
 247          dri2_surf->local_buffers[i] = NULL;
 248       }
 249    }
 250 }
 251
 252 static _EGLSurface *
 253 droid_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
 254                     _EGLConfig *conf, void *native_window,
 255                     const EGLint *attrib_list)
 256 {
 257    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 258    struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
 259    struct dri2_egl_surface *dri2_surf;
 260    struct ANativeWindow *window = native_window;
 261    const __DRIconfig *config;
 262
 263    dri2_surf = calloc(1, sizeof *dri2_surf);
 264    if (!dri2_surf) {
 265       _eglError(EGL_BAD_ALLOC, "droid_create_surface");
 266       return NULL;
 267    }
 268
 269    if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
 270       goto cleanup_surface;
 271
 272    if (type == EGL_WINDOW_BIT) {
 273       int format;
 274
 275       if (!window || window->common.magic != ANDROID_NATIVE_WINDOW_MAGIC) {
 276          _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
 277          goto cleanup_surface;
 278       }
 279       if (window->query(window, NATIVE_WINDOW_FORMAT, &format)) {
 280          _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
 281          goto cleanup_surface;
 282       }
 283
 284       if (format != dri2_conf->base.NativeVisualID) {
 285          _eglLog(_EGL_WARNING, "Native format mismatch: 0x%x != 0x%x",
 286                format, dri2_conf->base.NativeVisualID);
 287       }
 288
 289       window->query(window, NATIVE_WINDOW_WIDTH, &dri2_surf->base.Width);
 290       window->query(window, NATIVE_WINDOW_HEIGHT, &dri2_surf->base.Height);
 291    }
 292
 293    config = dri2_get_dri_config(dri2_conf, type,
 294                                 dri2_surf->base.GLColorspace);
 295    if (!config)
 296       goto cleanup_surface;
 297
 298    dri2_surf->dri_drawable =
 299       (*dri2_dpy->dri2->createNewDrawable)(dri2_dpy->dri_screen, config,
 300                                            dri2_surf);
 301    if (dri2_surf->dri_drawable == NULL) {
 302       _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
 303       goto cleanup_surface;
 304    }
 305
 306    if (window) {
 307       window->common.incRef(&window->common);
 308       dri2_surf->window = window;
 309    }
 310
 311    return &dri2_surf->base;
 312
 313 cleanup_surface:
 314    free(dri2_surf);
 315
 316    return NULL;
 317 }
 318
 319 static _EGLSurface *
 320 droid_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
 321                             _EGLConfig *conf, void *native_window,
 322                             const EGLint *attrib_list)
 323 {
 324    return droid_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
 325                                native_window, attrib_list);
 326 }
 327
 328 static _EGLSurface *
 329 droid_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
 330                             _EGLConfig *conf, const EGLint *attrib_list)
 331 {
 332    return droid_create_surface(drv, disp, EGL_PBUFFER_BIT, conf,
 333                               NULL, attrib_list);
 334 }
 335
 336 static EGLBoolean
 337 droid_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
 338 {
 339    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 340    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
 341
 342    droid_free_local_buffers(dri2_surf);
 343
 344    if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 345       if (dri2_surf->buffer)
 346          droid_window_cancel_buffer(disp, dri2_surf);
 347
 348       dri2_surf->window->common.decRef(&dri2_surf->window->common);
 349    }
 350
 351    if (dri2_surf->dri_image_back) {
 352       _eglLog(_EGL_DEBUG, "%s : %d : destroy dri_image_back", __func__, __LINE__);
 353       dri2_dpy->image->destroyImage(dri2_surf->dri_image_back);
 354       dri2_surf->dri_image_back = NULL;
 355    }
 356
 357    if (dri2_surf->dri_image_front) {
 358       _eglLog(_EGL_DEBUG, "%s : %d : destroy dri_image_front", __func__, __LINE__);
 359       dri2_dpy->image->destroyImage(dri2_surf->dri_image_front);
 360       dri2_surf->dri_image_front = NULL;
 361    }
 362
 363    (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
 364
 365    free(dri2_surf);
 366
 367    return EGL_TRUE;
 368 }
 369
 370 static int
 371 update_buffers(struct dri2_egl_surface *dri2_surf)
 372 {
 373    if (dri2_surf->base.Type != EGL_WINDOW_BIT)
 374       return 0;
 375
 376    /* try to dequeue the next back buffer */
 377    if (!dri2_surf->buffer && !droid_window_dequeue_buffer(dri2_surf)) {
 378       _eglLog(_EGL_WARNING, "Could not dequeue buffer from native window");
 379       return -1;
 380    }
 381
 382    /* free outdated buffers and update the surface size */
 383    if (dri2_surf->base.Width != dri2_surf->buffer->width ||
 384        dri2_surf->base.Height != dri2_surf->buffer->height) {
 385       droid_free_local_buffers(dri2_surf);
 386       dri2_surf->base.Width = dri2_surf->buffer->width;
 387       dri2_surf->base.Height = dri2_surf->buffer->height;
 388    }
 389
 390    return 0;
 391 }
 392
 393 static int
 394 get_back_bo(struct dri2_egl_surface *dri2_surf)
 395 {
 396    struct dri2_egl_display *dri2_dpy =
 397       dri2_egl_display(dri2_surf->base.Resource.Display);
 398    int fourcc, pitch;
 399    int offset = 0, fd;
 400
 401    if (dri2_surf->dri_image_back)
 402       return 0;
 403
 404    if (!dri2_surf->buffer)
 405       return -1;
 406
 407    fd = get_native_buffer_fd(dri2_surf->buffer);
 408    if (fd < 0) {
 409       _eglLog(_EGL_WARNING, "Could not get native buffer FD");
 410       return -1;
 411    }
 412
 413    fourcc = get_fourcc(dri2_surf->buffer->format);
 414
 415    pitch = dri2_surf->buffer->stride *
 416       get_format_bpp(dri2_surf->buffer->format);
 417
 418    if (fourcc == -1 || pitch == 0) {
 419       _eglLog(_EGL_WARNING, "Invalid buffer fourcc(%x) or pitch(%d)",
 420               fourcc, pitch);
 421       return -1;
 422    }
 423
 424    dri2_surf->dri_image_back =
 425       dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
 426                                           dri2_surf->base.Width,
 427                                           dri2_surf->base.Height,
 428                                           fourcc,
 429                                           &fd,
 430                                           1,
 431                                           &pitch,
 432                                           &offset,
 433                                           dri2_surf);
 434    if (!dri2_surf->dri_image_back)
 435       return -1;
 436
 437    return 0;
 438 }
 439
 440 static int
 441 droid_image_get_buffers(__DRIdrawable *driDrawable,
 442                   unsigned int format,
 443                   uint32_t *stamp,
 444                   void *loaderPrivate,
 445                   uint32_t buffer_mask,
 446                   struct __DRIimageList *images)
 447 {
 448    struct dri2_egl_surface *dri2_surf = loaderPrivate;
 449    struct dri2_egl_display *dri2_dpy =
 450       dri2_egl_display(dri2_surf->base.Resource.Display);
 451
 452    images->image_mask = 0;
 453    images->front = NULL;
 454    images->back = NULL;
 455
 456    if (update_buffers(dri2_surf) < 0)
 457       return 0;
 458
 459    if (buffer_mask & __DRI_IMAGE_BUFFER_FRONT) {
 460       if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 461          /* According current EGL spec,
 462           * front buffer rendering for window surface is not supported now */
 463          _eglLog(_EGL_WARNING,
 464                  "%s:%d front buffer rendering for window surface is not supported!",
 465                  __func__, __LINE__);
 466          return 0;
 467       }
 468
 469       /* The EGL 1.5 spec states that pbuffers are single-buffered. Specifically,
 470        * the spec states that they have a back buffer but no front buffer, in
 471        * contrast to pixmaps, which have a front buffer but no back buffer.
 472        *
 473        * Single-buffered surfaces with no front buffer confuse Mesa; so we deviate
 474        * from the spec, following the precedent of Mesa's EGL X11 platform. The
 475        * X11 platform correctly assigns pbuffers to single-buffered configs, but
 476        * assigns the pbuffer a front buffer instead of a back buffer.
 477        *
 478        * Pbuffers in the X11 platform mostly work today, so let's just copy its
 479        * behavior instead of trying to fix (and hence potentially breaking) the
 480        * world.
 481        */
 482       if (!dri2_surf->dri_image_front &&
 483           dri2_surf->base.Type == EGL_PBUFFER_BIT) {
 484          dri2_surf->dri_image_front =
 485             dri2_dpy->image->createImage(dri2_dpy->dri_screen,
 486                                          dri2_surf->base.Width,
 487                                          dri2_surf->base.Height,
 488                                          format,
 489                                          0,
 490                                          dri2_surf);
 491       }
 492
 493       if (!dri2_surf->dri_image_front) {
 494          _eglLog(_EGL_WARNING,
 495                  "%s:%d dri2_image front buffer allocation failed!",
 496                  __func__, __LINE__);
 497          return 0;
 498       }
 499
 500       images->front = dri2_surf->dri_image_front;
 501       images->image_mask |= __DRI_IMAGE_BUFFER_FRONT;
 502    }
 503
 504    if (buffer_mask & __DRI_IMAGE_BUFFER_BACK) {
 505       if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 506          if (get_back_bo(dri2_surf) < 0)
 507             return 0;
 508       }
 509
 510       if (!dri2_surf->dri_image_back) {
 511          _eglLog(_EGL_WARNING,
 512                  "%s:%d dri2_image back buffer allocation failed!",
 513                  __func__, __LINE__);
 514          return 0;
 515       }
 516
 517       images->back = dri2_surf->dri_image_back;
 518       images->image_mask |= __DRI_IMAGE_BUFFER_BACK;
 519    }
 520
 521    return 1;
 522 }
 523
 524 static EGLBoolean
 525 droid_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
 526 {
 527    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 528    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
 529
 530    if (dri2_surf->base.Type != EGL_WINDOW_BIT)
 531       return EGL_TRUE;
 532
 533    dri2_flush_drawable_for_swapbuffers(disp, draw);
 534
 535    if (dri2_surf->buffer)
 536       droid_window_enqueue_buffer(disp, dri2_surf);
 537
 538    (*dri2_dpy->flush->invalidate)(dri2_surf->dri_drawable);
 539
 540    return EGL_TRUE;
 541 }
 542
 543 static _EGLImage *
 544 droid_create_image_from_prime_fd(_EGLDisplay *disp, _EGLContext *ctx,
 545                                  struct ANativeWindowBuffer *buf, int fd)
 546 {
 547    unsigned int offsets[3] = { 0, 0, 0 };
 548    unsigned int pitches[3] = { 0, 0, 0 };
 549
 550    const int fourcc = get_fourcc(buf->format);
 551    if (fourcc == -1) {
 552       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 553       return NULL;
 554    }
 555
 556    pitches[0] = buf->stride * get_format_bpp(buf->format);
 557    if (pitches[0] == 0) {
 558       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 559       return NULL;
 560    }
 561
 562    switch (buf->format) {
 563    case HAL_PIXEL_FORMAT_YV12:
 564       /* Y plane is assumed to be at offset 0. */
 565       /* Cr plane is located after Y plane */
 566       offsets[1] = offsets[0] + pitches[0] * buf->height;
 567       pitches[1] = ALIGN(pitches[0] / 2, 16);
 568       /* Cb plane is located after Cr plane */
 569       offsets[2] = offsets[1] + pitches[1] * buf->height / 2;
 570       pitches[2] = pitches[1];
 571
 572       const EGLint attr_list_yv12[] = {
 573          EGL_WIDTH, buf->width,
 574          EGL_HEIGHT, buf->height,
 575          EGL_LINUX_DRM_FOURCC_EXT, fourcc,
 576          EGL_DMA_BUF_PLANE0_FD_EXT, fd,
 577          EGL_DMA_BUF_PLANE0_PITCH_EXT, pitches[0],
 578          EGL_DMA_BUF_PLANE0_OFFSET_EXT, offsets[0],
 579          EGL_DMA_BUF_PLANE1_FD_EXT, fd,
 580          EGL_DMA_BUF_PLANE1_PITCH_EXT, pitches[1],
 581          EGL_DMA_BUF_PLANE1_OFFSET_EXT, offsets[1],
 582          EGL_DMA_BUF_PLANE2_FD_EXT, fd,
 583          EGL_DMA_BUF_PLANE2_PITCH_EXT, pitches[2],
 584          EGL_DMA_BUF_PLANE2_OFFSET_EXT, offsets[2],
 585          EGL_NONE, 0
 586       };
 587
 588       return dri2_create_image_dma_buf(disp, ctx, NULL, attr_list_yv12);
 589    }
 590
 591    const EGLint attr_list[] = {
 592       EGL_WIDTH, buf->width,
 593       EGL_HEIGHT, buf->height,
 594       EGL_LINUX_DRM_FOURCC_EXT, fourcc,
 595       EGL_DMA_BUF_PLANE0_FD_EXT, fd,
 596       EGL_DMA_BUF_PLANE0_PITCH_EXT, pitches[0],
 597       EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0,
 598       EGL_NONE, 0
 599    };
 600
 601    return dri2_create_image_dma_buf(disp, ctx, NULL, attr_list);
 602 }
 603
 604 static _EGLImage *
 605 droid_create_image_from_name(_EGLDisplay *disp, _EGLContext *ctx,
 606                              struct ANativeWindowBuffer *buf)
 607 {
 608    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 609    struct dri2_egl_image *dri2_img;
 610    int name;
 611    int format;
 612
 613    name = get_native_buffer_name(buf);
 614    if (!name) {
 615       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 616       return NULL;
 617    }
 618
 619    format = get_format(buf->format);
 620    if (format == -1)
 621        return NULL;
 622
 623    dri2_img = calloc(1, sizeof(*dri2_img));
 624    if (!dri2_img) {
 625       _eglError(EGL_BAD_ALLOC, "droid_create_image_mesa_drm");
 626       return NULL;
 627    }
 628
 629    if (!_eglInitImage(&dri2_img->base, disp)) {
 630       free(dri2_img);
 631       return NULL;
 632    }
 633
 634    dri2_img->dri_image =
 635       dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
 636                                            buf->width,
 637                                            buf->height,
 638                                            format,
 639                                            name,
 640                                            buf->stride,
 641                                            dri2_img);
 642    if (!dri2_img->dri_image) {
 643       free(dri2_img);
 644       _eglError(EGL_BAD_ALLOC, "droid_create_image_mesa_drm");
 645       return NULL;
 646    }
 647
 648    return &dri2_img->base;
 649 }
 650
 651 static EGLBoolean
 652 droid_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
 653                     EGLint attribute, EGLint *value)
 654 {
 655    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
 656    switch (attribute) {
 657       case EGL_WIDTH:
 658          if (dri2_surf->base.Type == EGL_WINDOW_BIT && dri2_surf->window) {
 659             dri2_surf->window->query(dri2_surf->window,
 660                                      NATIVE_WINDOW_DEFAULT_WIDTH, value);
 661             return EGL_TRUE;
 662          }
 663          break;
 664       case EGL_HEIGHT:
 665          if (dri2_surf->base.Type == EGL_WINDOW_BIT && dri2_surf->window) {
 666             dri2_surf->window->query(dri2_surf->window,
 667                                      NATIVE_WINDOW_DEFAULT_HEIGHT, value);
 668             return EGL_TRUE;
 669          }
 670          break;
 671       default:
 672          break;
 673    }
 674    return _eglQuerySurface(drv, dpy, surf, attribute, value);
 675 }
 676
 677 static _EGLImage *
 678 dri2_create_image_android_native_buffer(_EGLDisplay *disp,
 679                                         _EGLContext *ctx,
 680                                         struct ANativeWindowBuffer *buf)
 681 {
 682    int fd;
 683
 684    if (ctx != NULL) {
 685       /* From the EGL_ANDROID_image_native_buffer spec:
 686        *
 687        *     * If <target> is EGL_NATIVE_BUFFER_ANDROID and <ctx> is not
 688        *       EGL_NO_CONTEXT, the error EGL_BAD_CONTEXT is generated.
 689        */
 690       _eglError(EGL_BAD_CONTEXT, "eglCreateEGLImageKHR: for "
 691                 "EGL_NATIVE_BUFFER_ANDROID, the context must be "
 692                 "EGL_NO_CONTEXT");
 693       return NULL;
 694    }
 695
 696    if (!buf || buf->common.magic != ANDROID_NATIVE_BUFFER_MAGIC ||
 697        buf->common.version != sizeof(*buf)) {
 698       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 699       return NULL;
 700    }
 701
 702    fd = get_native_buffer_fd(buf);
 703    if (fd >= 0)
 704       return droid_create_image_from_prime_fd(disp, ctx, buf, fd);
 705
 706    return droid_create_image_from_name(disp, ctx, buf);
 707 }
 708
 709 static _EGLImage *
 710 droid_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
 711                        _EGLContext *ctx, EGLenum target,
 712                        EGLClientBuffer buffer, const EGLint *attr_list)
 713 {
 714    switch (target) {
 715    case EGL_NATIVE_BUFFER_ANDROID:
 716       return dri2_create_image_android_native_buffer(disp, ctx,
 717             (struct ANativeWindowBuffer *) buffer);
 718    default:
 719       return dri2_create_image_khr(drv, disp, ctx, target, buffer, attr_list);
 720    }
 721 }
 722
 723 static void
 724 droid_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
 725 {
 726 }
 727
 728 static int
 729 droid_get_buffers_parse_attachments(struct dri2_egl_surface *dri2_surf,
 730                                     unsigned int *attachments, int count)
 731 {
 732    int num_buffers = 0, i;
 733
 734    /* fill dri2_surf->buffers */
 735    for (i = 0; i < count * 2; i += 2) {
 736       __DRIbuffer *buf, *local;
 737
 738       assert(num_buffers < ARRAY_SIZE(dri2_surf->buffers));
 739       buf = &dri2_surf->buffers[num_buffers];
 740
 741       switch (attachments[i]) {
 742       case __DRI_BUFFER_BACK_LEFT:
 743          if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 744             buf->attachment = attachments[i];
 745             buf->name = get_native_buffer_name(dri2_surf->buffer);
 746             buf->cpp = get_format_bpp(dri2_surf->buffer->format);
 747             buf->pitch = dri2_surf->buffer->stride * buf->cpp;
 748             buf->flags = 0;
 749
 750             if (buf->name)
 751                num_buffers++;
 752
 753             break;
 754          }
 755          /* fall through for pbuffers */
 756       case __DRI_BUFFER_DEPTH:
 757       case __DRI_BUFFER_STENCIL:
 758       case __DRI_BUFFER_ACCUM:
 759       case __DRI_BUFFER_DEPTH_STENCIL:
 760       case __DRI_BUFFER_HIZ:
 761          local = droid_alloc_local_buffer(dri2_surf,
 762                attachments[i], attachments[i + 1]);
 763
 764          if (local) {
 765             *buf = *local;
 766             num_buffers++;
 767          }
 768          break;
 769       case __DRI_BUFFER_FRONT_LEFT:
 770       case __DRI_BUFFER_FRONT_RIGHT:
 771       case __DRI_BUFFER_FAKE_FRONT_LEFT:
 772       case __DRI_BUFFER_FAKE_FRONT_RIGHT:
 773       case __DRI_BUFFER_BACK_RIGHT:
 774       default:
 775          /* no front or right buffers */
 776          break;
 777       }
 778    }
 779
 780    return num_buffers;
 781 }
 782
 783 static __DRIbuffer *
 784 droid_get_buffers_with_format(__DRIdrawable * driDrawable,
 785                              int *width, int *height,
 786                              unsigned int *attachments, int count,
 787                              int *out_count, void *loaderPrivate)
 788 {
 789    struct dri2_egl_surface *dri2_surf = loaderPrivate;
 790
 791    if (update_buffers(dri2_surf) < 0)
 792       return NULL;
 793
 794    dri2_surf->buffer_count =
 795       droid_get_buffers_parse_attachments(dri2_surf, attachments, count);
 796
 797    if (width)
 798       *width = dri2_surf->base.Width;
 799    if (height)
 800       *height = dri2_surf->base.Height;
 801
 802    *out_count = dri2_surf->buffer_count;
 803
 804    return dri2_surf->buffers;
 805 }
 806
 807 static EGLBoolean
 808 droid_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *dpy)
 809 {
 810    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
 811    static const struct {
 812       int format;
 813       unsigned int rgba_masks[4];
 814    } visuals[] = {
 815       { HAL_PIXEL_FORMAT_RGBA_8888, { 0xff, 0xff00, 0xff0000, 0xff000000 } },
 816       { HAL_PIXEL_FORMAT_RGBX_8888, { 0xff, 0xff00, 0xff0000, 0x0 } },
 817       { HAL_PIXEL_FORMAT_RGB_565,   { 0xf800, 0x7e0, 0x1f, 0x0 } },
 818       { HAL_PIXEL_FORMAT_BGRA_8888, { 0xff0000, 0xff00, 0xff, 0xff000000 } },
 819    };
 820    EGLint config_attrs[] = {
 821      EGL_NATIVE_VISUAL_ID,   0,
 822      EGL_NATIVE_VISUAL_TYPE, 0,
 823      EGL_FRAMEBUFFER_TARGET_ANDROID, EGL_TRUE,
 824      EGL_RECORDABLE_ANDROID, EGL_TRUE,
 825      EGL_NONE
 826    };
 827    unsigned int format_count[ARRAY_SIZE(visuals)] = { 0 };
 828    int count, i, j;
 829
 830    count = 0;
 831    for (i = 0; dri2_dpy->driver_configs[i]; i++) {
 832       const EGLint surface_type = EGL_WINDOW_BIT | EGL_PBUFFER_BIT;
 833       struct dri2_egl_config *dri2_conf;
 834
 835       for (j = 0; j < ARRAY_SIZE(visuals); j++) {
 836          config_attrs[1] = visuals[j].format;
 837          config_attrs[3] = visuals[j].format;
 838
 839          dri2_conf = dri2_add_config(dpy, dri2_dpy->driver_configs[i],
 840                count + 1, surface_type, config_attrs, visuals[j].rgba_masks);
 841          if (dri2_conf) {
 842             count++;
 843             format_count[j]++;
 844          }
 845       }
 846    }
 847
 848    for (i = 0; i < ARRAY_SIZE(format_count); i++) {
 849       if (!format_count[i]) {
 850          _eglLog(_EGL_DEBUG, "No DRI config supports native format 0x%x",
 851                  visuals[i].format);
 852       }
 853    }
 854
 855    return (count != 0);
 856 }
 857
 858 static int
 859 droid_open_device(void)
 860 {
 861    const hw_module_t *mod;
 862    int fd = -1, err;
 863
 864    err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &mod);
 865    if (!err) {
 866       const gralloc_module_t *gr = (gralloc_module_t *) mod;
 867
 868       err = -EINVAL;
 869       if (gr->perform)
 870          err = gr->perform(gr, GRALLOC_MODULE_PERFORM_GET_DRM_FD, &fd);
 871    }
 872    if (err || fd < 0) {
 873       _eglLog(_EGL_WARNING, "fail to get drm fd");
 874       fd = -1;
 875    }
 876
 877    return (fd >= 0) ? fcntl(fd, F_DUPFD_CLOEXEC, 3) : -1;
 878 }
 879
 880 /* support versions < JellyBean */
 881 #ifndef ALOGW
 882 #define ALOGW LOGW
 883 #endif
 884 #ifndef ALOGD
 885 #define ALOGD LOGD
 886 #endif
 887 #ifndef ALOGI
 888 #define ALOGI LOGI
 889 #endif
 890
 891 static void
 892 droid_log(EGLint level, const char *msg)
 893 {
 894    switch (level) {
 895    case _EGL_DEBUG:
 896       ALOGD("%s", msg);
 897       break;
 898    case _EGL_INFO:
 899       ALOGI("%s", msg);
 900       break;
 901    case _EGL_WARNING:
 902       ALOGW("%s", msg);
 903       break;
 904    case _EGL_FATAL:
 905       LOG_FATAL("%s", msg);
 906       break;
 907    default:
 908       break;
 909    }
 910 }
 911
 912 static struct dri2_egl_display_vtbl droid_display_vtbl = {
 913    .authenticate = NULL,
 914    .create_window_surface = droid_create_window_surface,
 915    .create_pixmap_surface = dri2_fallback_create_pixmap_surface,
 916    .create_pbuffer_surface = droid_create_pbuffer_surface,
 917    .destroy_surface = droid_destroy_surface,
 918    .create_image = droid_create_image_khr,
 919    .swap_interval = dri2_fallback_swap_interval,
 920    .swap_buffers = droid_swap_buffers,
 921    .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage,
 922    .swap_buffers_region = dri2_fallback_swap_buffers_region,
 923    .post_sub_buffer = dri2_fallback_post_sub_buffer,
 924    .copy_buffers = dri2_fallback_copy_buffers,
 925    .query_buffer_age = dri2_fallback_query_buffer_age,
 926    .query_surface = droid_query_surface,
 927    .create_wayland_buffer_from_image = dri2_fallback_create_wayland_buffer_from_image,
 928    .get_sync_values = dri2_fallback_get_sync_values,
 929    .get_dri_drawable = dri2_surface_get_dri_drawable,
 930 };
 931
 932 static const __DRIdri2LoaderExtension droid_dri2_loader_extension = {
 933    .base = { __DRI_DRI2_LOADER, 3 },
 934
 935    .getBuffers           = NULL,
 936    .flushFrontBuffer     = droid_flush_front_buffer,
 937    .getBuffersWithFormat = droid_get_buffers_with_format,
 938 };
 939
 940 static const __DRIimageLoaderExtension droid_image_loader_extension = {
 941    .base = { __DRI_IMAGE_LOADER, 1 },
 942
 943    .getBuffers          = droid_image_get_buffers,
 944    .flushFrontBuffer    = droid_flush_front_buffer,
 945 };
 946
 947 static const __DRIextension *droid_dri2_loader_extensions[] = {
 948    &droid_dri2_loader_extension.base,
 949    &image_lookup_extension.base,
 950    &use_invalidate.base,
 951    NULL,
 952 };
 953
 954 static const __DRIextension *droid_image_loader_extensions[] = {
 955    &droid_image_loader_extension.base,
 956    &image_lookup_extension.base,
 957    &use_invalidate.base,
 958    NULL,
 959 };
 960
 961 EGLBoolean
 962 dri2_initialize_android(_EGLDriver *drv, _EGLDisplay *dpy)
 963 {
 964    struct dri2_egl_display *dri2_dpy;
 965    const char *err;
 966
 967    _eglSetLogProc(droid_log);
 968
 969    loader_set_logger(_eglLog);
 970
 971    dri2_dpy = calloc(1, sizeof(*dri2_dpy));
 972    if (!dri2_dpy)
 973       return _eglError(EGL_BAD_ALLOC, "eglInitialize");
 974
 975    dpy->DriverData = (void *) dri2_dpy;
 976
 977    dri2_dpy->fd = droid_open_device();
 978    if (dri2_dpy->fd < 0) {
 979       err = "DRI2: failed to open device";
 980       goto cleanup_display;
 981    }
 982
 983    dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd);
 984    if (dri2_dpy->driver_name == NULL) {
 985       err = "DRI2: failed to get driver name";
 986       goto cleanup_device;
 987    }
 988
 989    if (!dri2_load_driver(dpy)) {
 990       err = "DRI2: failed to load driver";
 991       goto cleanup_driver_name;
 992    }
 993
 994    dri2_dpy->is_render_node = drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER;
 995
 996    /* render nodes cannot use Gem names, and thus do not support
 997     * the __DRI_DRI2_LOADER extension */
 998    if (!dri2_dpy->is_render_node)
 999       dri2_dpy->loader_extensions = droid_dri2_loader_extensions;
1000    else
1001       dri2_dpy->loader_extensions = droid_image_loader_extensions;
1002
1003    if (!dri2_create_screen(dpy)) {
1004       err = "DRI2: failed to create screen";
1005       goto cleanup_driver;
1006    }
1007
1008    if (!droid_add_configs_for_visuals(drv, dpy)) {
1009       err = "DRI2: failed to add configs";
1010       goto cleanup_screen;
1011    }
1012
1013    dpy->Extensions.ANDROID_framebuffer_target = EGL_TRUE;
1014    dpy->Extensions.ANDROID_image_native_buffer = EGL_TRUE;
1015    dpy->Extensions.ANDROID_recordable = EGL_TRUE;
1016
1017    /* Fill vtbl last to prevent accidentally calling virtual function during
1018     * initialization.
1019     */
1020    dri2_dpy->vtbl = &droid_display_vtbl;
1021
1022    return EGL_TRUE;
1023
1024 cleanup_screen:
1025    dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
1026 cleanup_driver:
1027    dlclose(dri2_dpy->driver);
1028 cleanup_driver_name:
1029    free(dri2_dpy->driver_name);
1030 cleanup_device:
1031    close(dri2_dpy->fd);
1032 cleanup_display:
1033    free(dri2_dpy);
1034    dpy->DriverData = NULL;
1035
1036    return _eglError(EGL_NOT_INITIALIZED, err);
1037 }