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_888:
  58       bpp = 3;
  59       break;
  60    case HAL_PIXEL_FORMAT_RGB_565:
  61       bpp = 2;
  62       break;
  63    case HAL_PIXEL_FORMAT_YV12:
  64       bpp = 1;
  65       break;
  66    default:
  67       bpp = 0;
  68       break;
  69    }
  70
  71    return bpp;
  72 }
  73
  74 /* createImageFromFds requires fourcc format */
  75 static int get_fourcc(int native)
  76 {
  77    switch (native) {
  78    case HAL_PIXEL_FORMAT_RGB_565:   return __DRI_IMAGE_FOURCC_RGB565;
  79    case HAL_PIXEL_FORMAT_BGRA_8888: return __DRI_IMAGE_FOURCC_ARGB8888;
  80    case HAL_PIXEL_FORMAT_RGBA_8888: return __DRI_IMAGE_FOURCC_ABGR8888;
  81    case HAL_PIXEL_FORMAT_RGBX_8888: return __DRI_IMAGE_FOURCC_XBGR8888;
  82    case HAL_PIXEL_FORMAT_YV12:      return __DRI_IMAGE_FOURCC_YVU420;
  83    default:
  84       _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", native);
  85    }
  86    return -1;
  87 }
  88
  89 static int get_format(int format)
  90 {
  91    switch (format) {
  92    case HAL_PIXEL_FORMAT_BGRA_8888: return __DRI_IMAGE_FORMAT_ARGB8888;
  93    case HAL_PIXEL_FORMAT_RGB_565:   return __DRI_IMAGE_FORMAT_RGB565;
  94    case HAL_PIXEL_FORMAT_RGBA_8888: return __DRI_IMAGE_FORMAT_ABGR8888;
  95    case HAL_PIXEL_FORMAT_RGBX_8888: return __DRI_IMAGE_FORMAT_XBGR8888;
  96    case HAL_PIXEL_FORMAT_RGB_888:
  97       /* unsupported */
  98    default:
  99       _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", format);
 100    }
 101    return -1;
 102 }
 103
 104 static int
 105 get_native_buffer_fd(struct ANativeWindowBuffer *buf)
 106 {
 107    native_handle_t *handle = (native_handle_t *)buf->handle;
 108    /*
 109     * Various gralloc implementations exist, but the dma-buf fd tends
 110     * to be first. Access it directly to avoid a dependency on specific
 111     * gralloc versions.
 112     */
 113    return (handle && handle->numFds) ? handle->data[0] : -1;
 114 }
 115
 116 static int
 117 get_native_buffer_name(struct ANativeWindowBuffer *buf)
 118 {
 119    return gralloc_drm_get_gem_handle(buf->handle);
 120 }
 121
 122 static EGLBoolean
 123 droid_window_dequeue_buffer(struct dri2_egl_surface *dri2_surf)
 124 {
 125 #if ANDROID_VERSION >= 0x0402
 126    int fence_fd;
 127
 128    if (dri2_surf->window->dequeueBuffer(dri2_surf->window, &dri2_surf->buffer,
 129                                         &fence_fd))
 130       return EGL_FALSE;
 131
 132    /* If access to the buffer is controlled by a sync fence, then block on the
 133     * fence.
 134     *
 135     * It may be more performant to postpone blocking until there is an
 136     * immediate need to write to the buffer. But doing so would require adding
 137     * hooks to the DRI2 loader.
 138     *
 139     * From the ANativeWindow::dequeueBuffer documentation:
 140     *
 141     *    The libsync fence file descriptor returned in the int pointed to by
 142     *    the fenceFd argument will refer to the fence that must signal
 143     *    before the dequeued buffer may be written to.  A value of -1
 144     *    indicates that the caller may access the buffer immediately without
 145     *    waiting on a fence.  If a valid file descriptor is returned (i.e.
 146     *    any value except -1) then the caller is responsible for closing the
 147     *    file descriptor.
 148     */
 149     if (fence_fd >= 0) {
 150        /* From the SYNC_IOC_WAIT documentation in <linux/sync.h>:
 151         *
 152         *    Waits indefinitely if timeout < 0.
 153         */
 154         int timeout = -1;
 155         sync_wait(fence_fd, timeout);
 156         close(fence_fd);
 157    }
 158
 159    dri2_surf->buffer->common.incRef(&dri2_surf->buffer->common);
 160 #else
 161    if (dri2_surf->window->dequeueBuffer(dri2_surf->window, &dri2_surf->buffer))
 162       return EGL_FALSE;
 163
 164    dri2_surf->buffer->common.incRef(&dri2_surf->buffer->common);
 165    dri2_surf->window->lockBuffer(dri2_surf->window, dri2_surf->buffer);
 166 #endif
 167
 168    return EGL_TRUE;
 169 }
 170
 171 static EGLBoolean
 172 droid_window_enqueue_buffer(_EGLDisplay *disp, struct dri2_egl_surface *dri2_surf)
 173 {
 174    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 175
 176    /* To avoid blocking other EGL calls, release the display mutex before
 177     * we enter droid_window_enqueue_buffer() and re-acquire the mutex upon
 178     * return.
 179     */
 180    mtx_unlock(&disp->Mutex);
 181
 182 #if ANDROID_VERSION >= 0x0402
 183    /* Queue the buffer without a sync fence. This informs the ANativeWindow
 184     * that it may access the buffer immediately.
 185     *
 186     * From ANativeWindow::dequeueBuffer:
 187     *
 188     *    The fenceFd argument specifies a libsync fence file descriptor for
 189     *    a fence that must signal before the buffer can be accessed.  If
 190     *    the buffer can be accessed immediately then a value of -1 should
 191     *    be used.  The caller must not use the file descriptor after it
 192     *    is passed to queueBuffer, and the ANativeWindow implementation
 193     *    is responsible for closing it.
 194     */
 195    int fence_fd = -1;
 196    dri2_surf->window->queueBuffer(dri2_surf->window, dri2_surf->buffer,
 197                                   fence_fd);
 198 #else
 199    dri2_surf->window->queueBuffer(dri2_surf->window, dri2_surf->buffer);
 200 #endif
 201
 202    dri2_surf->buffer->common.decRef(&dri2_surf->buffer->common);
 203    dri2_surf->buffer = NULL;
 204
 205    mtx_lock(&disp->Mutex);
 206
 207    if (dri2_surf->dri_image_back) {
 208       dri2_dpy->image->destroyImage(dri2_surf->dri_image_back);
 209       dri2_surf->dri_image_back = NULL;
 210    }
 211
 212    return EGL_TRUE;
 213 }
 214
 215 static void
 216 droid_window_cancel_buffer(_EGLDisplay *disp, struct dri2_egl_surface *dri2_surf)
 217 {
 218    /* no cancel buffer? */
 219    droid_window_enqueue_buffer(disp, dri2_surf);
 220 }
 221
 222 static __DRIbuffer *
 223 droid_alloc_local_buffer(struct dri2_egl_surface *dri2_surf,
 224                          unsigned int att, unsigned int format)
 225 {
 226    struct dri2_egl_display *dri2_dpy =
 227       dri2_egl_display(dri2_surf->base.Resource.Display);
 228
 229    if (att >= ARRAY_SIZE(dri2_surf->local_buffers))
 230       return NULL;
 231
 232    if (!dri2_surf->local_buffers[att]) {
 233       dri2_surf->local_buffers[att] =
 234          dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen, att, format,
 235                dri2_surf->base.Width, dri2_surf->base.Height);
 236    }
 237
 238    return dri2_surf->local_buffers[att];
 239 }
 240
 241 static void
 242 droid_free_local_buffers(struct dri2_egl_surface *dri2_surf)
 243 {
 244    struct dri2_egl_display *dri2_dpy =
 245       dri2_egl_display(dri2_surf->base.Resource.Display);
 246    int i;
 247
 248    for (i = 0; i < ARRAY_SIZE(dri2_surf->local_buffers); i++) {
 249       if (dri2_surf->local_buffers[i]) {
 250          dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
 251                dri2_surf->local_buffers[i]);
 252          dri2_surf->local_buffers[i] = NULL;
 253       }
 254    }
 255 }
 256
 257 static _EGLSurface *
 258 droid_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
 259                     _EGLConfig *conf, void *native_window,
 260                     const EGLint *attrib_list)
 261 {
 262    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 263    struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
 264    struct dri2_egl_surface *dri2_surf;
 265    struct ANativeWindow *window = native_window;
 266    const __DRIconfig *config;
 267
 268    dri2_surf = calloc(1, sizeof *dri2_surf);
 269    if (!dri2_surf) {
 270       _eglError(EGL_BAD_ALLOC, "droid_create_surface");
 271       return NULL;
 272    }
 273
 274    if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
 275       goto cleanup_surface;
 276
 277    if (type == EGL_WINDOW_BIT) {
 278       int format;
 279
 280       if (!window || window->common.magic != ANDROID_NATIVE_WINDOW_MAGIC) {
 281          _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
 282          goto cleanup_surface;
 283       }
 284       if (window->query(window, NATIVE_WINDOW_FORMAT, &format)) {
 285          _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
 286          goto cleanup_surface;
 287       }
 288
 289       if (format != dri2_conf->base.NativeVisualID) {
 290          _eglLog(_EGL_WARNING, "Native format mismatch: 0x%x != 0x%x",
 291                format, dri2_conf->base.NativeVisualID);
 292       }
 293
 294       window->query(window, NATIVE_WINDOW_WIDTH, &dri2_surf->base.Width);
 295       window->query(window, NATIVE_WINDOW_HEIGHT, &dri2_surf->base.Height);
 296    }
 297
 298    config = dri2_get_dri_config(dri2_conf, type,
 299                                 dri2_surf->base.GLColorspace);
 300    if (!config)
 301       goto cleanup_surface;
 302
 303    dri2_surf->dri_drawable =
 304       (*dri2_dpy->dri2->createNewDrawable)(dri2_dpy->dri_screen, config,
 305                                            dri2_surf);
 306    if (dri2_surf->dri_drawable == NULL) {
 307       _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
 308       goto cleanup_surface;
 309    }
 310
 311    if (window) {
 312       window->common.incRef(&window->common);
 313       dri2_surf->window = window;
 314    }
 315
 316    return &dri2_surf->base;
 317
 318 cleanup_surface:
 319    free(dri2_surf);
 320
 321    return NULL;
 322 }
 323
 324 static _EGLSurface *
 325 droid_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
 326                             _EGLConfig *conf, void *native_window,
 327                             const EGLint *attrib_list)
 328 {
 329    return droid_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
 330                                native_window, attrib_list);
 331 }
 332
 333 static _EGLSurface *
 334 droid_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
 335                             _EGLConfig *conf, const EGLint *attrib_list)
 336 {
 337    return droid_create_surface(drv, disp, EGL_PBUFFER_BIT, conf,
 338                               NULL, attrib_list);
 339 }
 340
 341 static EGLBoolean
 342 droid_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
 343 {
 344    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 345    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
 346
 347    droid_free_local_buffers(dri2_surf);
 348
 349    if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 350       if (dri2_surf->buffer)
 351          droid_window_cancel_buffer(disp, dri2_surf);
 352
 353       dri2_surf->window->common.decRef(&dri2_surf->window->common);
 354    }
 355
 356    if (dri2_surf->dri_image_back) {
 357       _eglLog(_EGL_DEBUG, "%s : %d : destroy dri_image_back", __func__, __LINE__);
 358       dri2_dpy->image->destroyImage(dri2_surf->dri_image_back);
 359       dri2_surf->dri_image_back = NULL;
 360    }
 361
 362    if (dri2_surf->dri_image_front) {
 363       _eglLog(_EGL_DEBUG, "%s : %d : destroy dri_image_front", __func__, __LINE__);
 364       dri2_dpy->image->destroyImage(dri2_surf->dri_image_front);
 365       dri2_surf->dri_image_front = NULL;
 366    }
 367
 368    (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
 369
 370    free(dri2_surf);
 371
 372    return EGL_TRUE;
 373 }
 374
 375 static int
 376 update_buffers(struct dri2_egl_surface *dri2_surf)
 377 {
 378    if (dri2_surf->base.Type != EGL_WINDOW_BIT)
 379       return 0;
 380
 381    /* try to dequeue the next back buffer */
 382    if (!dri2_surf->buffer && !droid_window_dequeue_buffer(dri2_surf)) {
 383       _eglLog(_EGL_WARNING, "Could not dequeue buffer from native window");
 384       return -1;
 385    }
 386
 387    /* free outdated buffers and update the surface size */
 388    if (dri2_surf->base.Width != dri2_surf->buffer->width ||
 389        dri2_surf->base.Height != dri2_surf->buffer->height) {
 390       droid_free_local_buffers(dri2_surf);
 391       dri2_surf->base.Width = dri2_surf->buffer->width;
 392       dri2_surf->base.Height = dri2_surf->buffer->height;
 393    }
 394
 395    return 0;
 396 }
 397
 398 static int
 399 get_back_bo(struct dri2_egl_surface *dri2_surf)
 400 {
 401    struct dri2_egl_display *dri2_dpy =
 402       dri2_egl_display(dri2_surf->base.Resource.Display);
 403    int fourcc, pitch;
 404    int offset = 0, fd;
 405
 406    if (dri2_surf->dri_image_back)
 407       return 0;
 408
 409    if (!dri2_surf->buffer)
 410       return -1;
 411
 412    fd = get_native_buffer_fd(dri2_surf->buffer);
 413    if (fd < 0) {
 414       _eglLog(_EGL_WARNING, "Could not get native buffer FD");
 415       return -1;
 416    }
 417
 418    fourcc = get_fourcc(dri2_surf->buffer->format);
 419
 420    pitch = dri2_surf->buffer->stride *
 421       get_format_bpp(dri2_surf->buffer->format);
 422
 423    if (fourcc == -1 || pitch == 0) {
 424       _eglLog(_EGL_WARNING, "Invalid buffer fourcc(%x) or pitch(%d)",
 425               fourcc, pitch);
 426       return -1;
 427    }
 428
 429    dri2_surf->dri_image_back =
 430       dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
 431                                           dri2_surf->base.Width,
 432                                           dri2_surf->base.Height,
 433                                           fourcc,
 434                                           &fd,
 435                                           1,
 436                                           &pitch,
 437                                           &offset,
 438                                           dri2_surf);
 439    if (!dri2_surf->dri_image_back)
 440       return -1;
 441
 442    return 0;
 443 }
 444
 445 static int
 446 droid_image_get_buffers(__DRIdrawable *driDrawable,
 447                   unsigned int format,
 448                   uint32_t *stamp,
 449                   void *loaderPrivate,
 450                   uint32_t buffer_mask,
 451                   struct __DRIimageList *images)
 452 {
 453    struct dri2_egl_surface *dri2_surf = loaderPrivate;
 454    struct dri2_egl_display *dri2_dpy =
 455       dri2_egl_display(dri2_surf->base.Resource.Display);
 456
 457    images->image_mask = 0;
 458    images->front = NULL;
 459    images->back = NULL;
 460
 461    if (update_buffers(dri2_surf) < 0)
 462       return 0;
 463
 464    if (buffer_mask & __DRI_IMAGE_BUFFER_FRONT) {
 465       if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 466          /* According current EGL spec,
 467           * front buffer rendering for window surface is not supported now */
 468          _eglLog(_EGL_WARNING,
 469                  "%s:%d front buffer rendering for window surface is not supported!",
 470                  __func__, __LINE__);
 471          return 0;
 472       }
 473
 474       /* The EGL 1.5 spec states that pbuffers are single-buffered. Specifically,
 475        * the spec states that they have a back buffer but no front buffer, in
 476        * contrast to pixmaps, which have a front buffer but no back buffer.
 477        *
 478        * Single-buffered surfaces with no front buffer confuse Mesa; so we deviate
 479        * from the spec, following the precedent of Mesa's EGL X11 platform. The
 480        * X11 platform correctly assigns pbuffers to single-buffered configs, but
 481        * assigns the pbuffer a front buffer instead of a back buffer.
 482        *
 483        * Pbuffers in the X11 platform mostly work today, so let's just copy its
 484        * behavior instead of trying to fix (and hence potentially breaking) the
 485        * world.
 486        */
 487       if (!dri2_surf->dri_image_front &&
 488           dri2_surf->base.Type == EGL_PBUFFER_BIT) {
 489          dri2_surf->dri_image_front =
 490             dri2_dpy->image->createImage(dri2_dpy->dri_screen,
 491                                          dri2_surf->base.Width,
 492                                          dri2_surf->base.Height,
 493                                          format,
 494                                          0,
 495                                          dri2_surf);
 496       }
 497
 498       if (!dri2_surf->dri_image_front) {
 499          _eglLog(_EGL_WARNING,
 500                  "%s:%d dri2_image front buffer allocation failed!",
 501                  __func__, __LINE__);
 502          return 0;
 503       }
 504
 505       images->front = dri2_surf->dri_image_front;
 506       images->image_mask |= __DRI_IMAGE_BUFFER_FRONT;
 507    }
 508
 509    if (buffer_mask & __DRI_IMAGE_BUFFER_BACK) {
 510       if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 511          if (get_back_bo(dri2_surf) < 0)
 512             return 0;
 513       }
 514
 515       if (!dri2_surf->dri_image_back) {
 516          _eglLog(_EGL_WARNING,
 517                  "%s:%d dri2_image back buffer allocation failed!",
 518                  __func__, __LINE__);
 519          return 0;
 520       }
 521
 522       images->back = dri2_surf->dri_image_back;
 523       images->image_mask |= __DRI_IMAGE_BUFFER_BACK;
 524    }
 525
 526    return 1;
 527 }
 528
 529 static EGLBoolean
 530 droid_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
 531 {
 532    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 533    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
 534
 535    if (dri2_surf->base.Type != EGL_WINDOW_BIT)
 536       return EGL_TRUE;
 537
 538    dri2_flush_drawable_for_swapbuffers(disp, draw);
 539
 540    if (dri2_surf->buffer)
 541       droid_window_enqueue_buffer(disp, dri2_surf);
 542
 543    (*dri2_dpy->flush->invalidate)(dri2_surf->dri_drawable);
 544
 545    return EGL_TRUE;
 546 }
 547
 548 static _EGLImage *
 549 droid_create_image_from_prime_fd(_EGLDisplay *disp, _EGLContext *ctx,
 550                                  struct ANativeWindowBuffer *buf, int fd)
 551 {
 552    unsigned int offsets[3] = { 0, 0, 0 };
 553    unsigned int pitches[3] = { 0, 0, 0 };
 554
 555    const int fourcc = get_fourcc(buf->format);
 556    if (fourcc == -1) {
 557       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 558       return NULL;
 559    }
 560
 561    pitches[0] = buf->stride * get_format_bpp(buf->format);
 562    if (pitches[0] == 0) {
 563       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 564       return NULL;
 565    }
 566
 567    switch (buf->format) {
 568    case HAL_PIXEL_FORMAT_YV12:
 569       /* Y plane is assumed to be at offset 0. */
 570       /* Cr plane is located after Y plane */
 571       offsets[1] = offsets[0] + pitches[0] * buf->height;
 572       pitches[1] = ALIGN(pitches[0] / 2, 16);
 573       /* Cb plane is located after Cr plane */
 574       offsets[2] = offsets[1] + pitches[1] * buf->height / 2;
 575       pitches[2] = pitches[1];
 576
 577       const EGLint attr_list_yv12[] = {
 578          EGL_WIDTH, buf->width,
 579          EGL_HEIGHT, buf->height,
 580          EGL_LINUX_DRM_FOURCC_EXT, fourcc,
 581          EGL_DMA_BUF_PLANE0_FD_EXT, fd,
 582          EGL_DMA_BUF_PLANE0_PITCH_EXT, pitches[0],
 583          EGL_DMA_BUF_PLANE0_OFFSET_EXT, offsets[0],
 584          EGL_DMA_BUF_PLANE1_FD_EXT, fd,
 585          EGL_DMA_BUF_PLANE1_PITCH_EXT, pitches[1],
 586          EGL_DMA_BUF_PLANE1_OFFSET_EXT, offsets[1],
 587          EGL_DMA_BUF_PLANE2_FD_EXT, fd,
 588          EGL_DMA_BUF_PLANE2_PITCH_EXT, pitches[2],
 589          EGL_DMA_BUF_PLANE2_OFFSET_EXT, offsets[2],
 590          EGL_NONE, 0
 591       };
 592
 593       return dri2_create_image_dma_buf(disp, ctx, NULL, attr_list_yv12);
 594    }
 595
 596    const EGLint attr_list[] = {
 597       EGL_WIDTH, buf->width,
 598       EGL_HEIGHT, buf->height,
 599       EGL_LINUX_DRM_FOURCC_EXT, fourcc,
 600       EGL_DMA_BUF_PLANE0_FD_EXT, fd,
 601       EGL_DMA_BUF_PLANE0_PITCH_EXT, pitches[0],
 602       EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0,
 603       EGL_NONE, 0
 604    };
 605
 606    return dri2_create_image_dma_buf(disp, ctx, NULL, attr_list);
 607 }
 608
 609 static _EGLImage *
 610 droid_create_image_from_name(_EGLDisplay *disp, _EGLContext *ctx,
 611                              struct ANativeWindowBuffer *buf)
 612 {
 613    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 614    struct dri2_egl_image *dri2_img;
 615    int name;
 616    int format;
 617
 618    name = get_native_buffer_name(buf);
 619    if (!name) {
 620       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 621       return NULL;
 622    }
 623
 624    format = get_format(buf->format);
 625    if (format == -1)
 626        return NULL;
 627
 628    dri2_img = calloc(1, sizeof(*dri2_img));
 629    if (!dri2_img) {
 630       _eglError(EGL_BAD_ALLOC, "droid_create_image_mesa_drm");
 631       return NULL;
 632    }
 633
 634    if (!_eglInitImage(&dri2_img->base, disp)) {
 635       free(dri2_img);
 636       return NULL;
 637    }
 638
 639    dri2_img->dri_image =
 640       dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
 641                                            buf->width,
 642                                            buf->height,
 643                                            format,
 644                                            name,
 645                                            buf->stride,
 646                                            dri2_img);
 647    if (!dri2_img->dri_image) {
 648       free(dri2_img);
 649       _eglError(EGL_BAD_ALLOC, "droid_create_image_mesa_drm");
 650       return NULL;
 651    }
 652
 653    return &dri2_img->base;
 654 }
 655
 656 static EGLBoolean
 657 droid_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
 658                     EGLint attribute, EGLint *value)
 659 {
 660    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
 661    switch (attribute) {
 662       case EGL_WIDTH:
 663          if (dri2_surf->base.Type == EGL_WINDOW_BIT && dri2_surf->window) {
 664             dri2_surf->window->query(dri2_surf->window,
 665                                      NATIVE_WINDOW_DEFAULT_WIDTH, value);
 666             return EGL_TRUE;
 667          }
 668          break;
 669       case EGL_HEIGHT:
 670          if (dri2_surf->base.Type == EGL_WINDOW_BIT && dri2_surf->window) {
 671             dri2_surf->window->query(dri2_surf->window,
 672                                      NATIVE_WINDOW_DEFAULT_HEIGHT, value);
 673             return EGL_TRUE;
 674          }
 675          break;
 676       default:
 677          break;
 678    }
 679    return _eglQuerySurface(drv, dpy, surf, attribute, value);
 680 }
 681
 682 static _EGLImage *
 683 dri2_create_image_android_native_buffer(_EGLDisplay *disp,
 684                                         _EGLContext *ctx,
 685                                         struct ANativeWindowBuffer *buf)
 686 {
 687    int fd;
 688
 689    if (ctx != NULL) {
 690       /* From the EGL_ANDROID_image_native_buffer spec:
 691        *
 692        *     * If <target> is EGL_NATIVE_BUFFER_ANDROID and <ctx> is not
 693        *       EGL_NO_CONTEXT, the error EGL_BAD_CONTEXT is generated.
 694        */
 695       _eglError(EGL_BAD_CONTEXT, "eglCreateEGLImageKHR: for "
 696                 "EGL_NATIVE_BUFFER_ANDROID, the context must be "
 697                 "EGL_NO_CONTEXT");
 698       return NULL;
 699    }
 700
 701    if (!buf || buf->common.magic != ANDROID_NATIVE_BUFFER_MAGIC ||
 702        buf->common.version != sizeof(*buf)) {
 703       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 704       return NULL;
 705    }
 706
 707    fd = get_native_buffer_fd(buf);
 708    if (fd >= 0)
 709       return droid_create_image_from_prime_fd(disp, ctx, buf, fd);
 710
 711    return droid_create_image_from_name(disp, ctx, buf);
 712 }
 713
 714 static _EGLImage *
 715 droid_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
 716                        _EGLContext *ctx, EGLenum target,
 717                        EGLClientBuffer buffer, const EGLint *attr_list)
 718 {
 719    switch (target) {
 720    case EGL_NATIVE_BUFFER_ANDROID:
 721       return dri2_create_image_android_native_buffer(disp, ctx,
 722             (struct ANativeWindowBuffer *) buffer);
 723    default:
 724       return dri2_create_image_khr(drv, disp, ctx, target, buffer, attr_list);
 725    }
 726 }
 727
 728 static void
 729 droid_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
 730 {
 731 }
 732
 733 static int
 734 droid_get_buffers_parse_attachments(struct dri2_egl_surface *dri2_surf,
 735                                     unsigned int *attachments, int count)
 736 {
 737    int num_buffers = 0, i;
 738
 739    /* fill dri2_surf->buffers */
 740    for (i = 0; i < count * 2; i += 2) {
 741       __DRIbuffer *buf, *local;
 742
 743       assert(num_buffers < ARRAY_SIZE(dri2_surf->buffers));
 744       buf = &dri2_surf->buffers[num_buffers];
 745
 746       switch (attachments[i]) {
 747       case __DRI_BUFFER_BACK_LEFT:
 748          if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 749             buf->attachment = attachments[i];
 750             buf->name = get_native_buffer_name(dri2_surf->buffer);
 751             buf->cpp = get_format_bpp(dri2_surf->buffer->format);
 752             buf->pitch = dri2_surf->buffer->stride * buf->cpp;
 753             buf->flags = 0;
 754
 755             if (buf->name)
 756                num_buffers++;
 757
 758             break;
 759          }
 760          /* fall through for pbuffers */
 761       case __DRI_BUFFER_DEPTH:
 762       case __DRI_BUFFER_STENCIL:
 763       case __DRI_BUFFER_ACCUM:
 764       case __DRI_BUFFER_DEPTH_STENCIL:
 765       case __DRI_BUFFER_HIZ:
 766          local = droid_alloc_local_buffer(dri2_surf,
 767                attachments[i], attachments[i + 1]);
 768
 769          if (local) {
 770             *buf = *local;
 771             num_buffers++;
 772          }
 773          break;
 774       case __DRI_BUFFER_FRONT_LEFT:
 775       case __DRI_BUFFER_FRONT_RIGHT:
 776       case __DRI_BUFFER_FAKE_FRONT_LEFT:
 777       case __DRI_BUFFER_FAKE_FRONT_RIGHT:
 778       case __DRI_BUFFER_BACK_RIGHT:
 779       default:
 780          /* no front or right buffers */
 781          break;
 782       }
 783    }
 784
 785    return num_buffers;
 786 }
 787
 788 static __DRIbuffer *
 789 droid_get_buffers_with_format(__DRIdrawable * driDrawable,
 790                              int *width, int *height,
 791                              unsigned int *attachments, int count,
 792                              int *out_count, void *loaderPrivate)
 793 {
 794    struct dri2_egl_surface *dri2_surf = loaderPrivate;
 795
 796    if (update_buffers(dri2_surf) < 0)
 797       return NULL;
 798
 799    dri2_surf->buffer_count =
 800       droid_get_buffers_parse_attachments(dri2_surf, attachments, count);
 801
 802    if (width)
 803       *width = dri2_surf->base.Width;
 804    if (height)
 805       *height = dri2_surf->base.Height;
 806
 807    *out_count = dri2_surf->buffer_count;
 808
 809    return dri2_surf->buffers;
 810 }
 811
 812 static EGLBoolean
 813 droid_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *dpy)
 814 {
 815    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
 816    static const struct {
 817       int format;
 818       unsigned int rgba_masks[4];
 819    } visuals[] = {
 820       { HAL_PIXEL_FORMAT_RGBA_8888, { 0xff, 0xff00, 0xff0000, 0xff000000 } },
 821       { HAL_PIXEL_FORMAT_RGBX_8888, { 0xff, 0xff00, 0xff0000, 0x0 } },
 822       { HAL_PIXEL_FORMAT_RGB_888,   { 0xff, 0xff00, 0xff0000, 0x0 } },
 823       { HAL_PIXEL_FORMAT_RGB_565,   { 0xf800, 0x7e0, 0x1f, 0x0 } },
 824       { HAL_PIXEL_FORMAT_BGRA_8888, { 0xff0000, 0xff00, 0xff, 0xff000000 } },
 825    };
 826    EGLint config_attrs[] = {
 827      EGL_NATIVE_VISUAL_ID,   0,
 828      EGL_NATIVE_VISUAL_TYPE, 0,
 829      EGL_FRAMEBUFFER_TARGET_ANDROID, EGL_TRUE,
 830      EGL_RECORDABLE_ANDROID, EGL_TRUE,
 831      EGL_NONE
 832    };
 833    unsigned int format_count[ARRAY_SIZE(visuals)] = { 0 };
 834    int count, i, j;
 835
 836    count = 0;
 837    for (i = 0; dri2_dpy->driver_configs[i]; i++) {
 838       const EGLint surface_type = EGL_WINDOW_BIT | EGL_PBUFFER_BIT;
 839       struct dri2_egl_config *dri2_conf;
 840
 841       for (j = 0; j < ARRAY_SIZE(visuals); j++) {
 842          config_attrs[1] = visuals[j].format;
 843          config_attrs[3] = visuals[j].format;
 844
 845          dri2_conf = dri2_add_config(dpy, dri2_dpy->driver_configs[i],
 846                count + 1, surface_type, config_attrs, visuals[j].rgba_masks);
 847          if (dri2_conf) {
 848             count++;
 849             format_count[j]++;
 850          }
 851       }
 852    }
 853
 854    for (i = 0; i < ARRAY_SIZE(format_count); i++) {
 855       if (!format_count[i]) {
 856          _eglLog(_EGL_DEBUG, "No DRI config supports native format 0x%x",
 857                  visuals[i].format);
 858       }
 859    }
 860
 861    return (count != 0);
 862 }
 863
 864 static int
 865 droid_open_device(void)
 866 {
 867    const hw_module_t *mod;
 868    int fd = -1, err;
 869
 870    err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &mod);
 871    if (!err) {
 872       const gralloc_module_t *gr = (gralloc_module_t *) mod;
 873
 874       err = -EINVAL;
 875       if (gr->perform)
 876          err = gr->perform(gr, GRALLOC_MODULE_PERFORM_GET_DRM_FD, &fd);
 877    }
 878    if (err || fd < 0) {
 879       _eglLog(_EGL_WARNING, "fail to get drm fd");
 880       fd = -1;
 881    }
 882
 883    return (fd >= 0) ? fcntl(fd, F_DUPFD_CLOEXEC, 3) : -1;
 884 }
 885
 886 /* support versions < JellyBean */
 887 #ifndef ALOGW
 888 #define ALOGW LOGW
 889 #endif
 890 #ifndef ALOGD
 891 #define ALOGD LOGD
 892 #endif
 893 #ifndef ALOGI
 894 #define ALOGI LOGI
 895 #endif
 896
 897 static void
 898 droid_log(EGLint level, const char *msg)
 899 {
 900    switch (level) {
 901    case _EGL_DEBUG:
 902       ALOGD("%s", msg);
 903       break;
 904    case _EGL_INFO:
 905       ALOGI("%s", msg);
 906       break;
 907    case _EGL_WARNING:
 908       ALOGW("%s", msg);
 909       break;
 910    case _EGL_FATAL:
 911       LOG_FATAL("%s", msg);
 912       break;
 913    default:
 914       break;
 915    }
 916 }
 917
 918 static struct dri2_egl_display_vtbl droid_display_vtbl = {
 919    .authenticate = NULL,
 920    .create_window_surface = droid_create_window_surface,
 921    .create_pixmap_surface = dri2_fallback_create_pixmap_surface,
 922    .create_pbuffer_surface = droid_create_pbuffer_surface,
 923    .destroy_surface = droid_destroy_surface,
 924    .create_image = droid_create_image_khr,
 925    .swap_interval = dri2_fallback_swap_interval,
 926    .swap_buffers = droid_swap_buffers,
 927    .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage,
 928    .swap_buffers_region = dri2_fallback_swap_buffers_region,
 929    .post_sub_buffer = dri2_fallback_post_sub_buffer,
 930    .copy_buffers = dri2_fallback_copy_buffers,
 931    .query_buffer_age = dri2_fallback_query_buffer_age,
 932    .query_surface = droid_query_surface,
 933    .create_wayland_buffer_from_image = dri2_fallback_create_wayland_buffer_from_image,
 934    .get_sync_values = dri2_fallback_get_sync_values,
 935    .get_dri_drawable = dri2_surface_get_dri_drawable,
 936 };
 937
 938 static const __DRIdri2LoaderExtension droid_dri2_loader_extension = {
 939    .base = { __DRI_DRI2_LOADER, 3 },
 940
 941    .getBuffers           = NULL,
 942    .flushFrontBuffer     = droid_flush_front_buffer,
 943    .getBuffersWithFormat = droid_get_buffers_with_format,
 944 };
 945
 946 static const __DRIimageLoaderExtension droid_image_loader_extension = {
 947    .base = { __DRI_IMAGE_LOADER, 1 },
 948
 949    .getBuffers          = droid_image_get_buffers,
 950    .flushFrontBuffer    = droid_flush_front_buffer,
 951 };
 952
 953 static const __DRIextension *droid_dri2_loader_extensions[] = {
 954    &droid_dri2_loader_extension.base,
 955    &image_lookup_extension.base,
 956    &use_invalidate.base,
 957    NULL,
 958 };
 959
 960 static const __DRIextension *droid_image_loader_extensions[] = {
 961    &droid_image_loader_extension.base,
 962    &image_lookup_extension.base,
 963    &use_invalidate.base,
 964    NULL,
 965 };
 966
 967 EGLBoolean
 968 dri2_initialize_android(_EGLDriver *drv, _EGLDisplay *dpy)
 969 {
 970    struct dri2_egl_display *dri2_dpy;
 971    const char *err;
 972
 973    _eglSetLogProc(droid_log);
 974
 975    loader_set_logger(_eglLog);
 976
 977    dri2_dpy = calloc(1, sizeof(*dri2_dpy));
 978    if (!dri2_dpy)
 979       return _eglError(EGL_BAD_ALLOC, "eglInitialize");
 980
 981    dpy->DriverData = (void *) dri2_dpy;
 982
 983    dri2_dpy->fd = droid_open_device();
 984    if (dri2_dpy->fd < 0) {
 985       err = "DRI2: failed to open device";
 986       goto cleanup_display;
 987    }
 988
 989    dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd);
 990    if (dri2_dpy->driver_name == NULL) {
 991       err = "DRI2: failed to get driver name";
 992       goto cleanup_device;
 993    }
 994
 995    if (!dri2_load_driver(dpy)) {
 996       err = "DRI2: failed to load driver";
 997       goto cleanup_driver_name;
 998    }
 999
1000    dri2_dpy->is_render_node = drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER;
1001
1002    /* render nodes cannot use Gem names, and thus do not support
1003     * the __DRI_DRI2_LOADER extension */
1004    if (!dri2_dpy->is_render_node)
1005       dri2_dpy->loader_extensions = droid_dri2_loader_extensions;
1006    else
1007       dri2_dpy->loader_extensions = droid_image_loader_extensions;
1008
1009    if (!dri2_create_screen(dpy)) {
1010       err = "DRI2: failed to create screen";
1011       goto cleanup_driver;
1012    }
1013
1014    if (!droid_add_configs_for_visuals(drv, dpy)) {
1015       err = "DRI2: failed to add configs";
1016       goto cleanup_screen;
1017    }
1018
1019    dpy->Extensions.ANDROID_framebuffer_target = EGL_TRUE;
1020    dpy->Extensions.ANDROID_image_native_buffer = EGL_TRUE;
1021    dpy->Extensions.ANDROID_recordable = EGL_TRUE;
1022
1023    /* Fill vtbl last to prevent accidentally calling virtual function during
1024     * initialization.
1025     */
1026    dri2_dpy->vtbl = &droid_display_vtbl;
1027
1028    return EGL_TRUE;
1029
1030 cleanup_screen:
1031    dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
1032 cleanup_driver:
1033    dlclose(dri2_dpy->driver);
1034 cleanup_driver_name:
1035    free(dri2_dpy->driver_name);
1036 cleanup_device:
1037    close(dri2_dpy->fd);
1038 cleanup_display:
1039    free(dri2_dpy);
1040    dpy->DriverData = NULL;
1041
1042    return _eglError(EGL_NOT_INITIALIZED, err);
1043 }