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) {
 208       dri2_dpy->image->destroyImage(dri2_surf->dri_image);
 209       dri2_surf->dri_image = 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, EGL_WINDOW_BIT,
 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    if (!_eglPutSurface(surf))
 348       return EGL_TRUE;
 349
 350    droid_free_local_buffers(dri2_surf);
 351
 352    if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 353       if (dri2_surf->buffer)
 354          droid_window_cancel_buffer(disp, dri2_surf);
 355
 356       dri2_surf->window->common.decRef(&dri2_surf->window->common);
 357    }
 358
 359    (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
 360
 361    free(dri2_surf);
 362
 363    return EGL_TRUE;
 364 }
 365
 366 static int
 367 update_buffers(struct dri2_egl_surface *dri2_surf)
 368 {
 369    if (dri2_surf->base.Type != EGL_WINDOW_BIT)
 370       return 0;
 371
 372    /* try to dequeue the next back buffer */
 373    if (!dri2_surf->buffer && !droid_window_dequeue_buffer(dri2_surf)) {
 374       _eglLog(_EGL_WARNING, "Could not dequeue buffer from native window");
 375       return -1;
 376    }
 377
 378    /* free outdated buffers and update the surface size */
 379    if (dri2_surf->base.Width != dri2_surf->buffer->width ||
 380        dri2_surf->base.Height != dri2_surf->buffer->height) {
 381       droid_free_local_buffers(dri2_surf);
 382       dri2_surf->base.Width = dri2_surf->buffer->width;
 383       dri2_surf->base.Height = dri2_surf->buffer->height;
 384    }
 385
 386    return 0;
 387 }
 388
 389 static int
 390 get_back_bo(struct dri2_egl_surface *dri2_surf)
 391 {
 392    struct dri2_egl_display *dri2_dpy =
 393       dri2_egl_display(dri2_surf->base.Resource.Display);
 394    int fourcc, pitch;
 395    int offset = 0, fd;
 396
 397    if (dri2_surf->dri_image)
 398            return 0;
 399
 400    if (!dri2_surf->buffer)
 401       return -1;
 402
 403    fd = get_native_buffer_fd(dri2_surf->buffer);
 404    if (fd < 0) {
 405       _eglLog(_EGL_WARNING, "Could not get native buffer FD");
 406       return -1;
 407    }
 408
 409    fourcc = get_fourcc(dri2_surf->buffer->format);
 410
 411    pitch = dri2_surf->buffer->stride *
 412       get_format_bpp(dri2_surf->buffer->format);
 413
 414    if (fourcc == -1 || pitch == 0) {
 415       _eglLog(_EGL_WARNING, "Invalid buffer fourcc(%x) or pitch(%d)",
 416               fourcc, pitch);
 417       return -1;
 418    }
 419
 420    dri2_surf->dri_image =
 421       dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
 422                                           dri2_surf->base.Width,
 423                                           dri2_surf->base.Height,
 424                                           fourcc,
 425                                           &fd,
 426                                           1,
 427                                           &pitch,
 428                                           &offset,
 429                                           dri2_surf);
 430    if (!dri2_surf->dri_image)
 431       return -1;
 432
 433    return 0;
 434 }
 435
 436 static int
 437 droid_image_get_buffers(__DRIdrawable *driDrawable,
 438                   unsigned int format,
 439                   uint32_t *stamp,
 440                   void *loaderPrivate,
 441                   uint32_t buffer_mask,
 442                   struct __DRIimageList *images)
 443 {
 444    struct dri2_egl_surface *dri2_surf = loaderPrivate;
 445
 446    images->image_mask = 0;
 447
 448    if (update_buffers(dri2_surf) < 0)
 449       return 0;
 450
 451    if (buffer_mask & __DRI_IMAGE_BUFFER_FRONT) {
 452       /*
 453        * We don't support front buffers and GLES doesn't require them for
 454        * window surfaces, but some DRI drivers will request them anyway.
 455        * We just ignore such request as other platforms backends do.
 456        */
 457    }
 458
 459    if (buffer_mask & __DRI_IMAGE_BUFFER_BACK) {
 460       if (get_back_bo(dri2_surf) < 0)
 461          return 0;
 462
 463       images->back = dri2_surf->dri_image;
 464       images->image_mask |= __DRI_IMAGE_BUFFER_BACK;
 465    }
 466
 467    return 1;
 468 }
 469
 470 static EGLBoolean
 471 droid_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
 472 {
 473    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 474    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
 475
 476    if (dri2_surf->base.Type != EGL_WINDOW_BIT)
 477       return EGL_TRUE;
 478
 479    dri2_flush_drawable_for_swapbuffers(disp, draw);
 480
 481    if (dri2_surf->buffer)
 482       droid_window_enqueue_buffer(disp, dri2_surf);
 483
 484    (*dri2_dpy->flush->invalidate)(dri2_surf->dri_drawable);
 485
 486    return EGL_TRUE;
 487 }
 488
 489 static _EGLImage *
 490 droid_create_image_from_prime_fd(_EGLDisplay *disp, _EGLContext *ctx,
 491                                  struct ANativeWindowBuffer *buf, int fd)
 492 {
 493    unsigned int offsets[3] = { 0, 0, 0 };
 494    unsigned int pitches[3] = { 0, 0, 0 };
 495
 496    const int fourcc = get_fourcc(buf->format);
 497    if (fourcc == -1) {
 498       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 499       return NULL;
 500    }
 501
 502    pitches[0] = buf->stride * get_format_bpp(buf->format);
 503    if (pitches[0] == 0) {
 504       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 505       return NULL;
 506    }
 507
 508    switch (buf->format) {
 509    case HAL_PIXEL_FORMAT_YV12:
 510       /* Y plane is assumed to be at offset 0. */
 511       /* Cr plane is located after Y plane */
 512       offsets[1] = offsets[0] + pitches[0] * buf->height;
 513       pitches[1] = ALIGN(pitches[0] / 2, 16);
 514       /* Cb plane is located after Cr plane */
 515       offsets[2] = offsets[1] + pitches[1] * buf->height / 2;
 516       pitches[2] = pitches[1];
 517
 518       const EGLint attr_list_yv12[] = {
 519          EGL_WIDTH, buf->width,
 520          EGL_HEIGHT, buf->height,
 521          EGL_LINUX_DRM_FOURCC_EXT, fourcc,
 522          EGL_DMA_BUF_PLANE0_FD_EXT, fd,
 523          EGL_DMA_BUF_PLANE0_PITCH_EXT, pitches[0],
 524          EGL_DMA_BUF_PLANE0_OFFSET_EXT, offsets[0],
 525          EGL_DMA_BUF_PLANE1_FD_EXT, fd,
 526          EGL_DMA_BUF_PLANE1_PITCH_EXT, pitches[1],
 527          EGL_DMA_BUF_PLANE1_OFFSET_EXT, offsets[1],
 528          EGL_DMA_BUF_PLANE2_FD_EXT, fd,
 529          EGL_DMA_BUF_PLANE2_PITCH_EXT, pitches[2],
 530          EGL_DMA_BUF_PLANE2_OFFSET_EXT, offsets[2],
 531          EGL_NONE, 0
 532       };
 533
 534       return dri2_create_image_dma_buf(disp, ctx, NULL, attr_list_yv12);
 535    }
 536
 537    const EGLint attr_list[] = {
 538       EGL_WIDTH, buf->width,
 539       EGL_HEIGHT, buf->height,
 540       EGL_LINUX_DRM_FOURCC_EXT, fourcc,
 541       EGL_DMA_BUF_PLANE0_FD_EXT, fd,
 542       EGL_DMA_BUF_PLANE0_PITCH_EXT, pitches[0],
 543       EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0,
 544       EGL_NONE, 0
 545    };
 546
 547    return dri2_create_image_dma_buf(disp, ctx, NULL, attr_list);
 548 }
 549
 550 static _EGLImage *
 551 droid_create_image_from_name(_EGLDisplay *disp, _EGLContext *ctx,
 552                              struct ANativeWindowBuffer *buf)
 553 {
 554    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 555    struct dri2_egl_image *dri2_img;
 556    int name;
 557    int format;
 558
 559    name = get_native_buffer_name(buf);
 560    if (!name) {
 561       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 562       return NULL;
 563    }
 564
 565    format = get_format(buf->format);
 566    if (format == -1)
 567        return NULL;
 568
 569    dri2_img = calloc(1, sizeof(*dri2_img));
 570    if (!dri2_img) {
 571       _eglError(EGL_BAD_ALLOC, "droid_create_image_mesa_drm");
 572       return NULL;
 573    }
 574
 575    if (!_eglInitImage(&dri2_img->base, disp)) {
 576       free(dri2_img);
 577       return NULL;
 578    }
 579
 580    dri2_img->dri_image =
 581       dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
 582                                            buf->width,
 583                                            buf->height,
 584                                            format,
 585                                            name,
 586                                            buf->stride,
 587                                            dri2_img);
 588    if (!dri2_img->dri_image) {
 589       free(dri2_img);
 590       _eglError(EGL_BAD_ALLOC, "droid_create_image_mesa_drm");
 591       return NULL;
 592    }
 593
 594    return &dri2_img->base;
 595 }
 596
 597 static EGLBoolean
 598 droid_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
 599                     EGLint attribute, EGLint *value)
 600 {
 601    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
 602    switch (attribute) {
 603       case EGL_WIDTH:
 604          if (dri2_surf->base.Type == EGL_WINDOW_BIT && dri2_surf->window) {
 605             dri2_surf->window->query(dri2_surf->window,
 606                                      NATIVE_WINDOW_DEFAULT_WIDTH, value);
 607             return EGL_TRUE;
 608          }
 609          break;
 610       case EGL_HEIGHT:
 611          if (dri2_surf->base.Type == EGL_WINDOW_BIT && dri2_surf->window) {
 612             dri2_surf->window->query(dri2_surf->window,
 613                                      NATIVE_WINDOW_DEFAULT_HEIGHT, value);
 614             return EGL_TRUE;
 615          }
 616          break;
 617       default:
 618          break;
 619    }
 620    return _eglQuerySurface(drv, dpy, surf, attribute, value);
 621 }
 622
 623 static _EGLImage *
 624 dri2_create_image_android_native_buffer(_EGLDisplay *disp,
 625                                         _EGLContext *ctx,
 626                                         struct ANativeWindowBuffer *buf)
 627 {
 628    int fd;
 629
 630    if (ctx != NULL) {
 631       /* From the EGL_ANDROID_image_native_buffer spec:
 632        *
 633        *     * If <target> is EGL_NATIVE_BUFFER_ANDROID and <ctx> is not
 634        *       EGL_NO_CONTEXT, the error EGL_BAD_CONTEXT is generated.
 635        */
 636       _eglError(EGL_BAD_CONTEXT, "eglCreateEGLImageKHR: for "
 637                 "EGL_NATIVE_BUFFER_ANDROID, the context must be "
 638                 "EGL_NO_CONTEXT");
 639       return NULL;
 640    }
 641
 642    if (!buf || buf->common.magic != ANDROID_NATIVE_BUFFER_MAGIC ||
 643        buf->common.version != sizeof(*buf)) {
 644       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 645       return NULL;
 646    }
 647
 648    fd = get_native_buffer_fd(buf);
 649    if (fd >= 0)
 650       return droid_create_image_from_prime_fd(disp, ctx, buf, fd);
 651
 652    return droid_create_image_from_name(disp, ctx, buf);
 653 }
 654
 655 static _EGLImage *
 656 droid_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
 657                        _EGLContext *ctx, EGLenum target,
 658                        EGLClientBuffer buffer, const EGLint *attr_list)
 659 {
 660    switch (target) {
 661    case EGL_NATIVE_BUFFER_ANDROID:
 662       return dri2_create_image_android_native_buffer(disp, ctx,
 663             (struct ANativeWindowBuffer *) buffer);
 664    default:
 665       return dri2_create_image_khr(drv, disp, ctx, target, buffer, attr_list);
 666    }
 667 }
 668
 669 static void
 670 droid_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
 671 {
 672 }
 673
 674 static int
 675 droid_get_buffers_parse_attachments(struct dri2_egl_surface *dri2_surf,
 676                                     unsigned int *attachments, int count)
 677 {
 678    int num_buffers = 0, i;
 679
 680    /* fill dri2_surf->buffers */
 681    for (i = 0; i < count * 2; i += 2) {
 682       __DRIbuffer *buf, *local;
 683
 684       assert(num_buffers < ARRAY_SIZE(dri2_surf->buffers));
 685       buf = &dri2_surf->buffers[num_buffers];
 686
 687       switch (attachments[i]) {
 688       case __DRI_BUFFER_BACK_LEFT:
 689          if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 690             buf->attachment = attachments[i];
 691             buf->name = get_native_buffer_name(dri2_surf->buffer);
 692             buf->cpp = get_format_bpp(dri2_surf->buffer->format);
 693             buf->pitch = dri2_surf->buffer->stride * buf->cpp;
 694             buf->flags = 0;
 695
 696             if (buf->name)
 697                num_buffers++;
 698
 699             break;
 700          }
 701          /* fall through for pbuffers */
 702       case __DRI_BUFFER_DEPTH:
 703       case __DRI_BUFFER_STENCIL:
 704       case __DRI_BUFFER_ACCUM:
 705       case __DRI_BUFFER_DEPTH_STENCIL:
 706       case __DRI_BUFFER_HIZ:
 707          local = droid_alloc_local_buffer(dri2_surf,
 708                attachments[i], attachments[i + 1]);
 709
 710          if (local) {
 711             *buf = *local;
 712             num_buffers++;
 713          }
 714          break;
 715       case __DRI_BUFFER_FRONT_LEFT:
 716       case __DRI_BUFFER_FRONT_RIGHT:
 717       case __DRI_BUFFER_FAKE_FRONT_LEFT:
 718       case __DRI_BUFFER_FAKE_FRONT_RIGHT:
 719       case __DRI_BUFFER_BACK_RIGHT:
 720       default:
 721          /* no front or right buffers */
 722          break;
 723       }
 724    }
 725
 726    return num_buffers;
 727 }
 728
 729 static __DRIbuffer *
 730 droid_get_buffers_with_format(__DRIdrawable * driDrawable,
 731                              int *width, int *height,
 732                              unsigned int *attachments, int count,
 733                              int *out_count, void *loaderPrivate)
 734 {
 735    struct dri2_egl_surface *dri2_surf = loaderPrivate;
 736
 737    if (update_buffers(dri2_surf) < 0)
 738       return NULL;
 739
 740    dri2_surf->buffer_count =
 741       droid_get_buffers_parse_attachments(dri2_surf, attachments, count);
 742
 743    if (width)
 744       *width = dri2_surf->base.Width;
 745    if (height)
 746       *height = dri2_surf->base.Height;
 747
 748    *out_count = dri2_surf->buffer_count;
 749
 750    return dri2_surf->buffers;
 751 }
 752
 753 static EGLBoolean
 754 droid_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *dpy)
 755 {
 756    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
 757    static const struct {
 758       int format;
 759       unsigned int rgba_masks[4];
 760    } visuals[] = {
 761       { HAL_PIXEL_FORMAT_RGBA_8888, { 0xff, 0xff00, 0xff0000, 0xff000000 } },
 762       { HAL_PIXEL_FORMAT_RGBX_8888, { 0xff, 0xff00, 0xff0000, 0x0 } },
 763       { HAL_PIXEL_FORMAT_RGB_888,   { 0xff, 0xff00, 0xff0000, 0x0 } },
 764       { HAL_PIXEL_FORMAT_RGB_565,   { 0xf800, 0x7e0, 0x1f, 0x0 } },
 765       { HAL_PIXEL_FORMAT_BGRA_8888, { 0xff0000, 0xff00, 0xff, 0xff000000 } },
 766       { 0, { 0, 0, 0, 0 } }
 767    };
 768    EGLint config_attrs[] = {
 769      EGL_NATIVE_VISUAL_ID,   0,
 770      EGL_NATIVE_VISUAL_TYPE, 0,
 771      EGL_FRAMEBUFFER_TARGET_ANDROID, EGL_TRUE,
 772      EGL_RECORDABLE_ANDROID, EGL_TRUE,
 773      EGL_MAX_PBUFFER_WIDTH, _EGL_MAX_PBUFFER_WIDTH,
 774      EGL_MAX_PBUFFER_HEIGHT, _EGL_MAX_PBUFFER_HEIGHT,
 775      EGL_NONE
 776    };
 777    int count, i, j;
 778
 779    count = 0;
 780    for (i = 0; visuals[i].format; i++) {
 781       int format_count = 0;
 782
 783       config_attrs[1] = visuals[i].format;
 784       config_attrs[3] = visuals[i].format;
 785
 786       for (j = 0; dri2_dpy->driver_configs[j]; j++) {
 787          const EGLint surface_type = EGL_WINDOW_BIT | EGL_PBUFFER_BIT;
 788          struct dri2_egl_config *dri2_conf;
 789          unsigned int double_buffered = 0;
 790
 791          dri2_dpy->core->getConfigAttrib(dri2_dpy->driver_configs[j],
 792             __DRI_ATTRIB_DOUBLE_BUFFER, &double_buffered);
 793
 794          /* support only double buffered configs */
 795          if (!double_buffered)
 796             continue;
 797
 798          dri2_conf = dri2_add_config(dpy, dri2_dpy->driver_configs[j],
 799                count + 1, surface_type, config_attrs, visuals[i].rgba_masks);
 800          if (dri2_conf) {
 801             count++;
 802             format_count++;
 803          }
 804       }
 805
 806       if (!format_count) {
 807          _eglLog(_EGL_DEBUG, "No DRI config supports native format 0x%x",
 808                visuals[i].format);
 809       }
 810    }
 811
 812    return (count != 0);
 813 }
 814
 815 static int
 816 droid_open_device(void)
 817 {
 818    const hw_module_t *mod;
 819    int fd = -1, err;
 820
 821    err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &mod);
 822    if (!err) {
 823       const gralloc_module_t *gr = (gralloc_module_t *) mod;
 824
 825       err = -EINVAL;
 826       if (gr->perform)
 827          err = gr->perform(gr, GRALLOC_MODULE_PERFORM_GET_DRM_FD, &fd);
 828    }
 829    if (err || fd < 0) {
 830       _eglLog(_EGL_WARNING, "fail to get drm fd");
 831       fd = -1;
 832    }
 833
 834    return (fd >= 0) ? fcntl(fd, F_DUPFD_CLOEXEC, 3) : -1;
 835 }
 836
 837 /* support versions < JellyBean */
 838 #ifndef ALOGW
 839 #define ALOGW LOGW
 840 #endif
 841 #ifndef ALOGD
 842 #define ALOGD LOGD
 843 #endif
 844 #ifndef ALOGI
 845 #define ALOGI LOGI
 846 #endif
 847
 848 static void
 849 droid_log(EGLint level, const char *msg)
 850 {
 851    switch (level) {
 852    case _EGL_DEBUG:
 853       ALOGD("%s", msg);
 854       break;
 855    case _EGL_INFO:
 856       ALOGI("%s", msg);
 857       break;
 858    case _EGL_WARNING:
 859       ALOGW("%s", msg);
 860       break;
 861    case _EGL_FATAL:
 862       LOG_FATAL("%s", msg);
 863       break;
 864    default:
 865       break;
 866    }
 867 }
 868
 869 static struct dri2_egl_display_vtbl droid_display_vtbl = {
 870    .authenticate = NULL,
 871    .create_window_surface = droid_create_window_surface,
 872    .create_pixmap_surface = dri2_fallback_create_pixmap_surface,
 873    .create_pbuffer_surface = droid_create_pbuffer_surface,
 874    .destroy_surface = droid_destroy_surface,
 875    .create_image = droid_create_image_khr,
 876    .swap_interval = dri2_fallback_swap_interval,
 877    .swap_buffers = droid_swap_buffers,
 878    .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage,
 879    .swap_buffers_region = dri2_fallback_swap_buffers_region,
 880    .post_sub_buffer = dri2_fallback_post_sub_buffer,
 881    .copy_buffers = dri2_fallback_copy_buffers,
 882    .query_buffer_age = dri2_fallback_query_buffer_age,
 883    .query_surface = droid_query_surface,
 884    .create_wayland_buffer_from_image = dri2_fallback_create_wayland_buffer_from_image,
 885    .get_sync_values = dri2_fallback_get_sync_values,
 886    .get_dri_drawable = dri2_surface_get_dri_drawable,
 887 };
 888
 889 static const __DRIimageLoaderExtension droid_image_loader_extension = {
 890    .base = { __DRI_IMAGE_LOADER, 1 },
 891
 892    .getBuffers          = droid_image_get_buffers,
 893    .flushFrontBuffer    = droid_flush_front_buffer,
 894 };
 895
 896 EGLBoolean
 897 dri2_initialize_android(_EGLDriver *drv, _EGLDisplay *dpy)
 898 {
 899    struct dri2_egl_display *dri2_dpy;
 900    const char *err;
 901
 902    _eglSetLogProc(droid_log);
 903
 904    loader_set_logger(_eglLog);
 905
 906    dri2_dpy = calloc(1, sizeof(*dri2_dpy));
 907    if (!dri2_dpy)
 908       return _eglError(EGL_BAD_ALLOC, "eglInitialize");
 909
 910    dpy->DriverData = (void *) dri2_dpy;
 911
 912    dri2_dpy->fd = droid_open_device();
 913    if (dri2_dpy->fd < 0) {
 914       err = "DRI2: failed to open device";
 915       goto cleanup_display;
 916    }
 917
 918    dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd, 0);
 919    if (dri2_dpy->driver_name == NULL) {
 920       err = "DRI2: failed to get driver name";
 921       goto cleanup_device;
 922    }
 923
 924    if (!dri2_load_driver(dpy)) {
 925       err = "DRI2: failed to load driver";
 926       goto cleanup_driver_name;
 927    }
 928
 929    dri2_dpy->is_render_node = drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER;
 930
 931    /* render nodes cannot use Gem names, and thus do not support
 932     * the __DRI_DRI2_LOADER extension */
 933    if (!dri2_dpy->is_render_node) {
 934       dri2_dpy->dri2_loader_extension.base.name = __DRI_DRI2_LOADER;
 935       dri2_dpy->dri2_loader_extension.base.version = 3;
 936       dri2_dpy->dri2_loader_extension.getBuffers = NULL;
 937       dri2_dpy->dri2_loader_extension.flushFrontBuffer = droid_flush_front_buffer;
 938       dri2_dpy->dri2_loader_extension.getBuffersWithFormat =
 939         droid_get_buffers_with_format;
 940       dri2_dpy->extensions[0] = &dri2_dpy->dri2_loader_extension.base;
 941    } else {
 942       dri2_dpy->extensions[0] = &droid_image_loader_extension.base;
 943    }
 944    dri2_dpy->extensions[1] = &use_invalidate.base;
 945    dri2_dpy->extensions[2] = &image_lookup_extension.base;
 946    dri2_dpy->extensions[3] = NULL;
 947
 948
 949    if (!dri2_create_screen(dpy)) {
 950       err = "DRI2: failed to create screen";
 951       goto cleanup_driver;
 952    }
 953
 954    if (!droid_add_configs_for_visuals(drv, dpy)) {
 955       err = "DRI2: failed to add configs";
 956       goto cleanup_screen;
 957    }
 958
 959    dpy->Extensions.ANDROID_framebuffer_target = EGL_TRUE;
 960    dpy->Extensions.ANDROID_image_native_buffer = EGL_TRUE;
 961    dpy->Extensions.ANDROID_recordable = EGL_TRUE;
 962    dpy->Extensions.KHR_image_base = EGL_TRUE;
 963
 964    /* Fill vtbl last to prevent accidentally calling virtual function during
 965     * initialization.
 966     */
 967    dri2_dpy->vtbl = &droid_display_vtbl;
 968
 969    return EGL_TRUE;
 970
 971 cleanup_screen:
 972    dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
 973 cleanup_driver:
 974    dlclose(dri2_dpy->driver);
 975 cleanup_driver_name:
 976    free(dri2_dpy->driver_name);
 977 cleanup_device:
 978    close(dri2_dpy->fd);
 979 cleanup_display:
 980    free(dri2_dpy);
 981    dpy->DriverData = NULL;
 982
 983    return _eglError(EGL_NOT_INITIALIZED, err);
 984 }