src/egl/drivers/dri2/platform_android.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  7.12
   4  *
   5  * Copyright (C) 2010-2011 Chia-I Wu <olvaffe@gmail.com>
   6  * Copyright (C) 2010-2011 LunarG Inc.
   7  *
   8  * Based on platform_x11, which has
   9  *
  10  * Copyright © 2011 Intel Corporation
  11  *
  12  * Permission is hereby granted, free of charge, to any person obtaining a
  13  * copy of this software and associated documentation files (the "Software"),
  14  * to deal in the Software without restriction, including without limitation
  15  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  16  * and/or sell copies of the Software, and to permit persons to whom the
  17  * Software is furnished to do so, subject to the following conditions:
  18  *
  19  * The above copyright notice and this permission notice shall be included
  20  * in all copies or substantial portions of the Software.
  21  *
  22  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  23  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  25  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  26  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  27  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  28  * DEALINGS IN THE SOFTWARE.
  29  */
  30
  31 #include <errno.h>
  32 #include <dlfcn.h>
  33
  34 /* for droid_get_pci_id */
  35 #include <xf86drm.h>
  36 #include <i915_drm.h>
  37 #include <radeon_drm.h>
  38
  39 #include "egl_dri2.h"
  40
  41 static int
  42 get_format_bpp(int native)
  43 {
  44    int bpp;
  45
  46    switch (native) {
  47    case HAL_PIXEL_FORMAT_RGBA_8888:
  48    case HAL_PIXEL_FORMAT_RGBX_8888:
  49    case HAL_PIXEL_FORMAT_BGRA_8888:
  50       bpp = 4;
  51       break;
  52    case HAL_PIXEL_FORMAT_RGB_888:
  53       bpp = 3;
  54       break;
  55    case HAL_PIXEL_FORMAT_RGB_565:
  56    case HAL_PIXEL_FORMAT_RGBA_5551:
  57    case HAL_PIXEL_FORMAT_RGBA_4444:
  58       bpp = 2;
  59       break;
  60    default:
  61       bpp = 0;
  62       break;
  63    }
  64
  65    return bpp;
  66 }
  67
  68 static int
  69 get_native_buffer_name(struct android_native_buffer_t *buf)
  70 {
  71    struct gralloc_drm_handle_t *handle;
  72
  73    /* check that the buffer is allocated by drm_gralloc and cast */
  74    handle = gralloc_drm_handle(buf->handle);
  75
  76    return (handle) ? handle->name : 0;
  77 }
  78
  79 static EGLBoolean
  80 droid_window_dequeue_buffer(struct dri2_egl_surface *dri2_surf)
  81 {
  82    if (dri2_surf->window->dequeueBuffer(dri2_surf->window, &dri2_surf->buffer))
  83       return EGL_FALSE;
  84
  85    dri2_surf->buffer->common.incRef(&dri2_surf->buffer->common);
  86    dri2_surf->window->lockBuffer(dri2_surf->window, dri2_surf->buffer);
  87
  88    return EGL_TRUE;
  89 }
  90
  91 static EGLBoolean
  92 droid_window_enqueue_buffer(struct dri2_egl_surface *dri2_surf)
  93 {
  94    dri2_surf->window->queueBuffer(dri2_surf->window, dri2_surf->buffer);
  95
  96    dri2_surf->buffer->common.decRef(&dri2_surf->buffer->common);
  97    dri2_surf->buffer = NULL;
  98
  99    return EGL_TRUE;
 100 }
 101
 102 static void
 103 droid_window_cancel_buffer(struct dri2_egl_surface *dri2_surf)
 104 {
 105    /* no cancel buffer? */
 106    droid_window_enqueue_buffer(dri2_surf);
 107 }
 108
 109 static __DRIbuffer *
 110 droid_alloc_local_buffer(struct dri2_egl_surface *dri2_surf,
 111                          unsigned int att, unsigned int format)
 112 {
 113    struct dri2_egl_display *dri2_dpy =
 114       dri2_egl_display(dri2_surf->base.Resource.Display);
 115
 116    if (att >= ARRAY_SIZE(dri2_surf->local_buffers))
 117       return NULL;
 118
 119    if (!dri2_surf->local_buffers[att]) {
 120       dri2_surf->local_buffers[att] =
 121          dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen, att, format,
 122                dri2_surf->base.Width, dri2_surf->base.Height);
 123    }
 124
 125    return dri2_surf->local_buffers[att];
 126 }
 127
 128 static void
 129 droid_free_local_buffers(struct dri2_egl_surface *dri2_surf)
 130 {
 131    struct dri2_egl_display *dri2_dpy =
 132       dri2_egl_display(dri2_surf->base.Resource.Display);
 133    int i;
 134
 135    for (i = 0; i < ARRAY_SIZE(dri2_surf->local_buffers); i++) {
 136       if (dri2_surf->local_buffers[i]) {
 137          dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
 138                dri2_surf->local_buffers[i]);
 139          dri2_surf->local_buffers[i] = NULL;
 140       }
 141    }
 142 }
 143
 144 static _EGLSurface *
 145 droid_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
 146                     _EGLConfig *conf, EGLNativeWindowType window,
 147                     const EGLint *attrib_list)
 148 {
 149    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 150    struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
 151    struct dri2_egl_surface *dri2_surf;
 152    dri2_surf = calloc(1, sizeof *dri2_surf);
 153    if (!dri2_surf) {
 154       _eglError(EGL_BAD_ALLOC, "droid_create_surface");
 155       return NULL;
 156    }
 157
 158    if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
 159       goto cleanup_surface;
 160
 161    if (type == EGL_WINDOW_BIT) {
 162       int format;
 163
 164       if (!window || window->common.magic != ANDROID_NATIVE_WINDOW_MAGIC) {
 165          _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
 166          goto cleanup_surface;
 167       }
 168       if (window->query(window, NATIVE_WINDOW_FORMAT, &format)) {
 169          _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
 170          goto cleanup_surface;
 171       }
 172
 173       if (format != dri2_conf->base.NativeVisualID) {
 174          _eglLog(_EGL_WARNING, "Native format mismatch: 0x%x != 0x%x",
 175                format, dri2_conf->base.NativeVisualID);
 176       }
 177
 178       window->query(window, NATIVE_WINDOW_WIDTH, &dri2_surf->base.Width);
 179       window->query(window, NATIVE_WINDOW_HEIGHT, &dri2_surf->base.Height);
 180    }
 181
 182    dri2_surf->dri_drawable =
 183       (*dri2_dpy->dri2->createNewDrawable)(dri2_dpy->dri_screen,
 184                                            dri2_conf->dri_double_config,
 185                                            dri2_surf);
 186    if (dri2_surf->dri_drawable == NULL) {
 187       _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
 188       goto cleanup_surface;
 189    }
 190
 191    if (window) {
 192       window->common.incRef(&window->common);
 193       dri2_surf->window = window;
 194    }
 195
 196    return &dri2_surf->base;
 197
 198 cleanup_surface:
 199    free(dri2_surf);
 200
 201    return NULL;
 202 }
 203
 204 static _EGLSurface *
 205 droid_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
 206                            _EGLConfig *conf, EGLNativeWindowType window,
 207                            const EGLint *attrib_list)
 208 {
 209    return droid_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
 210                               window, attrib_list);
 211 }
 212
 213 static _EGLSurface *
 214 droid_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
 215                            _EGLConfig *conf, EGLNativePixmapType pixmap,
 216                            const EGLint *attrib_list)
 217 {
 218    return NULL;
 219 }
 220
 221 static _EGLSurface *
 222 droid_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
 223                             _EGLConfig *conf, const EGLint *attrib_list)
 224 {
 225    return droid_create_surface(drv, disp, EGL_PBUFFER_BIT, conf,
 226                               NULL, attrib_list);
 227 }
 228
 229 static EGLBoolean
 230 droid_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
 231 {
 232    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 233    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
 234
 235    if (!_eglPutSurface(surf))
 236       return EGL_TRUE;
 237
 238    droid_free_local_buffers(dri2_surf);
 239
 240    if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 241       if (dri2_surf->buffer)
 242          droid_window_cancel_buffer(dri2_surf);
 243
 244       dri2_surf->window->common.decRef(&dri2_surf->window->common);
 245    }
 246
 247    (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
 248
 249    free(dri2_surf);
 250
 251    return EGL_TRUE;
 252 }
 253
 254 static EGLBoolean
 255 droid_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
 256 {
 257    struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
 258    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 259    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
 260    _EGLContext *ctx;
 261
 262    if (dri2_surf->base.Type != EGL_WINDOW_BIT)
 263       return EGL_TRUE;
 264
 265    if (dri2_drv->glFlush) {
 266       ctx = _eglGetCurrentContext();
 267       if (ctx && ctx->DrawSurface == &dri2_surf->base)
 268          dri2_drv->glFlush();
 269    }
 270
 271    (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
 272
 273    if (dri2_surf->buffer)
 274       droid_window_enqueue_buffer(dri2_surf);
 275
 276    (*dri2_dpy->flush->invalidate)(dri2_surf->dri_drawable);
 277
 278    return EGL_TRUE;
 279 }
 280
 281 static _EGLImage *
 282 dri2_create_image_android_native_buffer(_EGLDisplay *disp,
 283                                         struct android_native_buffer_t *buf)
 284 {
 285    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 286    struct dri2_egl_image *dri2_img;
 287    int name;
 288    EGLint format;
 289
 290    if (!buf || buf->common.magic != ANDROID_NATIVE_BUFFER_MAGIC ||
 291        buf->common.version != sizeof(*buf)) {
 292       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 293       return NULL;
 294    }
 295
 296    name = get_native_buffer_name(buf);
 297    if (!name) {
 298       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 299       return NULL;
 300    }
 301
 302    /* see the table in droid_add_configs_for_visuals */
 303    switch (buf->format) {
 304    case HAL_PIXEL_FORMAT_BGRA_8888:
 305       format = __DRI_IMAGE_FORMAT_ARGB8888;
 306       break;
 307    case HAL_PIXEL_FORMAT_RGB_565:
 308       format = __DRI_IMAGE_FORMAT_RGB565;
 309       break;
 310    case HAL_PIXEL_FORMAT_RGBA_8888:
 311    case HAL_PIXEL_FORMAT_RGBX_8888:
 312    case HAL_PIXEL_FORMAT_RGB_888:
 313    case HAL_PIXEL_FORMAT_RGBA_5551:
 314    case HAL_PIXEL_FORMAT_RGBA_4444:
 315       /* unsupported */
 316    default:
 317       _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", buf->format);
 318       return NULL;
 319       break;
 320    }
 321
 322    dri2_img = calloc(1, sizeof(*dri2_img));
 323    if (!dri2_img) {
 324       _eglError(EGL_BAD_ALLOC, "droid_create_image_mesa_drm");
 325       return NULL;
 326    }
 327
 328    if (!_eglInitImage(&dri2_img->base, disp)) {
 329       free(dri2_img);
 330       return NULL;
 331    }
 332
 333    dri2_img->dri_image =
 334       dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
 335                                            buf->width,
 336                                            buf->height,
 337                                            format,
 338                                            name,
 339                                            buf->stride,
 340                                            dri2_img);
 341    if (!dri2_img->dri_image) {
 342       free(dri2_img);
 343       _eglError(EGL_BAD_ALLOC, "droid_create_image_mesa_drm");
 344       return NULL;
 345    }
 346
 347    return &dri2_img->base;
 348 }
 349
 350 static _EGLImage *
 351 droid_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
 352                        _EGLContext *ctx, EGLenum target,
 353                        EGLClientBuffer buffer, const EGLint *attr_list)
 354 {
 355    switch (target) {
 356    case EGL_NATIVE_BUFFER_ANDROID:
 357       return dri2_create_image_android_native_buffer(disp,
 358             (struct android_native_buffer_t *) buffer);
 359    default:
 360       return dri2_create_image_khr(drv, disp, ctx, target, buffer, attr_list);
 361    }
 362 }
 363
 364 static void
 365 droid_init_driver_functions(_EGLDriver *drv)
 366 {
 367    drv->API.CreateWindowSurface = droid_create_window_surface;
 368    drv->API.CreatePixmapSurface = droid_create_pixmap_surface;
 369    drv->API.CreatePbufferSurface = droid_create_pbuffer_surface;
 370    drv->API.DestroySurface = droid_destroy_surface;
 371    drv->API.SwapBuffers = droid_swap_buffers;
 372
 373    drv->API.CreateImageKHR = droid_create_image_khr;
 374 }
 375
 376 static void
 377 droid_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
 378 {
 379 }
 380
 381 static int
 382 droid_get_buffers_parse_attachments(struct dri2_egl_surface *dri2_surf,
 383                                     unsigned int *attachments, int count)
 384 {
 385    int num_buffers = 0, i;
 386
 387    /* fill dri2_surf->buffers */
 388    for (i = 0; i < count * 2; i += 2) {
 389       __DRIbuffer *buf, *local;
 390
 391       assert(num_buffers < ARRAY_SIZE(dri2_surf->buffers));
 392       buf = &dri2_surf->buffers[num_buffers];
 393
 394       switch (attachments[i]) {
 395       case __DRI_BUFFER_BACK_LEFT:
 396          if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 397             buf->attachment = attachments[i];
 398             buf->name = get_native_buffer_name(dri2_surf->buffer);
 399             buf->cpp = get_format_bpp(dri2_surf->buffer->format);
 400             buf->pitch = dri2_surf->buffer->stride * buf->cpp;
 401             buf->flags = 0;
 402
 403             if (buf->name)
 404                num_buffers++;
 405
 406             break;
 407          }
 408          /* fall through for pbuffers */
 409       case __DRI_BUFFER_DEPTH:
 410       case __DRI_BUFFER_STENCIL:
 411       case __DRI_BUFFER_ACCUM:
 412       case __DRI_BUFFER_DEPTH_STENCIL:
 413       case __DRI_BUFFER_HIZ:
 414          local = droid_alloc_local_buffer(dri2_surf,
 415                attachments[i], attachments[i + 1]);
 416
 417          if (local) {
 418             *buf = *local;
 419             num_buffers++;
 420          }
 421          break;
 422       case __DRI_BUFFER_FRONT_LEFT:
 423       case __DRI_BUFFER_FRONT_RIGHT:
 424       case __DRI_BUFFER_FAKE_FRONT_LEFT:
 425       case __DRI_BUFFER_FAKE_FRONT_RIGHT:
 426       case __DRI_BUFFER_BACK_RIGHT:
 427       default:
 428          /* no front or right buffers */
 429          break;
 430       }
 431    }
 432
 433    return num_buffers;
 434 }
 435
 436 static __DRIbuffer *
 437 droid_get_buffers_with_format(__DRIdrawable * driDrawable,
 438                              int *width, int *height,
 439                              unsigned int *attachments, int count,
 440                              int *out_count, void *loaderPrivate)
 441 {
 442    struct dri2_egl_surface *dri2_surf = loaderPrivate;
 443    struct dri2_egl_display *dri2_dpy =
 444       dri2_egl_display(dri2_surf->base.Resource.Display);
 445    int i;
 446
 447    if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
 448       /* try to dequeue the next back buffer */
 449       if (!dri2_surf->buffer && !droid_window_dequeue_buffer(dri2_surf))
 450          return NULL;
 451
 452       /* free outdated buffers and update the surface size */
 453       if (dri2_surf->base.Width != dri2_surf->buffer->width ||
 454           dri2_surf->base.Height != dri2_surf->buffer->height) {
 455          droid_free_local_buffers(dri2_surf);
 456          dri2_surf->base.Width = dri2_surf->buffer->width;
 457          dri2_surf->base.Height = dri2_surf->buffer->height;
 458       }
 459    }
 460
 461    dri2_surf->buffer_count =
 462       droid_get_buffers_parse_attachments(dri2_surf, attachments, count);
 463
 464    if (width)
 465       *width = dri2_surf->base.Width;
 466    if (height)
 467       *height = dri2_surf->base.Height;
 468
 469    *out_count = dri2_surf->buffer_count;;
 470
 471    return dri2_surf->buffers;
 472 }
 473
 474 static EGLBoolean
 475 droid_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *dpy)
 476 {
 477    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
 478    const struct {
 479       int format;
 480       int size;
 481       unsigned int rgba_masks[4];
 482    } visuals[] = {
 483       { HAL_PIXEL_FORMAT_RGBA_8888, 32, { 0xff, 0xff00, 0xff0000, 0xff000000 } },
 484       { HAL_PIXEL_FORMAT_RGBX_8888, 32, { 0xff, 0xff00, 0xff0000, 0x0 } },
 485       { HAL_PIXEL_FORMAT_RGB_888,   24, { 0xff, 0xff00, 0xff0000, 0x0 } },
 486       { HAL_PIXEL_FORMAT_RGB_565,   16, { 0xf800, 0x7e0, 0x1f, 0x0 } },
 487       { HAL_PIXEL_FORMAT_BGRA_8888, 32, { 0xff0000, 0xff00, 0xff, 0xff000000 } },
 488       { 0, 0, { 0, 0, 0, 0 } }
 489    };
 490    int count, i, j;
 491
 492    count = 0;
 493    for (i = 0; visuals[i].format; i++) {
 494       int format_count = 0;
 495
 496       for (j = 0; dri2_dpy->driver_configs[j]; j++) {
 497          const EGLint surface_type = EGL_WINDOW_BIT | EGL_PBUFFER_BIT;
 498          struct dri2_egl_config *dri2_conf;
 499
 500          dri2_conf = dri2_add_config(dpy, dri2_dpy->driver_configs[j],
 501                count + 1, visuals[i].size, surface_type, NULL,
 502                visuals[i].rgba_masks);
 503          if (dri2_conf) {
 504             dri2_conf->base.NativeVisualID = visuals[i].format;
 505             dri2_conf->base.NativeVisualType = visuals[i].format;
 506             count++;
 507             format_count++;
 508          }
 509       }
 510
 511       if (!format_count) {
 512          _eglLog(_EGL_DEBUG, "No DRI config supports native format 0x%x",
 513                visuals[i].format);
 514       }
 515    }
 516
 517    /* post-process configs */
 518    for (i = 0; i < dpy->Configs->Size; i++) {
 519       struct dri2_egl_config *dri2_conf = dri2_egl_config(dpy->Configs->Elements[i]);
 520
 521       /* there is no front buffer so no OpenGL */
 522       dri2_conf->base.RenderableType &= ~EGL_OPENGL_BIT;
 523       dri2_conf->base.Conformant &= ~EGL_OPENGL_BIT;
 524
 525       /*
 526        * We want to make sure GL_DRAW_BUFFER for windows or pbuffers is always
 527        * GL_BACK.  For EGL configs that do not have a double DRI config, clear
 528        * the surface type.
 529        *
 530        * This is just to be on the safe side.  dri2_add_config never sets
 531        * EGL_WINDOW_BIT or EGL_PBUFFER_BIT for such configs.
 532        */
 533       if (!dri2_conf->dri_double_config)
 534          dri2_conf->base.SurfaceType = 0;
 535    }
 536
 537    return (count != 0);
 538 }
 539
 540 static EGLBoolean
 541 droid_get_pci_id(int fd, int *vendor_id, int *chip_id)
 542 {
 543    drmVersionPtr version;
 544
 545    *chip_id = -1;
 546
 547    version = drmGetVersion(fd);
 548    if (!version) {
 549       _eglLog(_EGL_WARNING, "invalid drm fd");
 550       return EGL_FALSE;
 551    }
 552    if (!version->name) {
 553       _eglLog(_EGL_WARNING, "unable to determine the driver name");
 554       drmFreeVersion(version);
 555       return EGL_FALSE;
 556    }
 557
 558    if (strcmp(version->name, "i915") == 0) {
 559       struct drm_i915_getparam gp;
 560       int ret;
 561
 562       *vendor_id = 0x8086;
 563
 564       memset(&gp, 0, sizeof(gp));
 565       gp.param = I915_PARAM_CHIPSET_ID;
 566       gp.value = chip_id;
 567       ret = drmCommandWriteRead(fd, DRM_I915_GETPARAM, &gp, sizeof(gp));
 568       if (ret) {
 569          _eglLog(_EGL_WARNING, "failed to get param for i915");
 570          *chip_id = -1;
 571       }
 572    }
 573    else if (strcmp(version->name, "radeon") == 0) {
 574       struct drm_radeon_info info;
 575       int ret;
 576
 577       *vendor_id = 0x1002;
 578
 579       memset(&info, 0, sizeof(info));
 580       info.request = RADEON_INFO_DEVICE_ID;
 581       info.value = (unsigned long) chip_id;
 582       ret = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info));
 583       if (ret) {
 584          _eglLog(_EGL_WARNING, "failed to get info for radeon");
 585          *chip_id = -1;
 586       }
 587    }
 588    else if (strcmp(version->name, "nouveau") == 0) {
 589       *vendor_id = 0x10de;
 590       /* not used */
 591       *chip_id = 0;
 592    }
 593    else if (strcmp(version->name, "vmwgfx") == 0) {
 594       *vendor_id = 0x15ad;
 595       /* assume SVGA II */
 596       *chip_id = 0x0405;
 597    }
 598
 599    drmFreeVersion(version);
 600
 601    return (*chip_id >= 0);
 602 }
 603
 604 #define DRIVER_MAP_DRI2_ONLY
 605 #include "pci_ids/pci_id_driver_map.h"
 606 static const char *
 607 droid_get_driver_name(int fd)
 608 {
 609    int vendor_id = -1, chip_id = -1;
 610    int idx, i;
 611    char *name;
 612
 613    if (!droid_get_pci_id(fd, &vendor_id, &chip_id))
 614       return NULL;
 615
 616    for (idx = 0; driver_map[idx].driver; idx++) {
 617       if (vendor_id != driver_map[idx].vendor_id)
 618          continue;
 619
 620       if (driver_map[idx].num_chips_ids == -1)
 621          break;
 622
 623       for (i = 0; i < driver_map[idx].num_chips_ids; i++) {
 624          if (driver_map[idx].chip_ids[i] == chip_id)
 625             break;
 626       }
 627       if (i < driver_map[idx].num_chips_ids)
 628               break;
 629    }
 630
 631    _eglLog(_EGL_INFO, "pci id for fd %d: %04x:%04x, driver %s",
 632          fd, vendor_id, chip_id, driver_map[idx].driver);
 633
 634    return driver_map[idx].driver;
 635 }
 636
 637 static int
 638 droid_open_device(void)
 639 {
 640    const hw_module_t *mod;
 641    int fd = -1, err;
 642
 643    err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &mod);
 644    if (!err) {
 645       const gralloc_module_t *gr = (gralloc_module_t *) mod;
 646
 647       err = -EINVAL;
 648       if (gr->perform)
 649          err = gr->perform(gr, GRALLOC_MODULE_PERFORM_GET_DRM_FD, &fd);
 650    }
 651    if (err || fd < 0) {
 652       _eglLog(_EGL_WARNING, "fail to get drm fd");
 653       fd = -1;
 654    }
 655
 656    return (fd >= 0) ? dup(fd) : -1;
 657 }
 658
 659 static void
 660 droid_log(EGLint level, const char *msg)
 661 {
 662    switch (level) {
 663    case _EGL_DEBUG:
 664       LOGD("%s", msg);
 665       break;
 666    case _EGL_INFO:
 667       LOGI("%s", msg);
 668       break;
 669    case _EGL_WARNING:
 670       LOGW("%s", msg);
 671       break;
 672    case _EGL_FATAL:
 673       LOG_FATAL("%s", msg);
 674       break;
 675    default:
 676       break;
 677    }
 678 }
 679
 680 EGLBoolean
 681 dri2_initialize_android(_EGLDriver *drv, _EGLDisplay *dpy)
 682 {
 683    struct dri2_egl_display *dri2_dpy;
 684    const char *err;
 685
 686    _eglSetLogProc(droid_log);
 687
 688    dri2_dpy = calloc(1, sizeof(*dri2_dpy));
 689    if (!dri2_dpy)
 690       return _eglError(EGL_BAD_ALLOC, "eglInitialize");
 691
 692    dpy->DriverData = (void *) dri2_dpy;
 693
 694    dri2_dpy->fd = droid_open_device();
 695    if (dri2_dpy->fd < 0) {
 696       err = "DRI2: failed to open device";
 697       goto cleanup_display;
 698    }
 699
 700    dri2_dpy->driver_name = (char *) droid_get_driver_name(dri2_dpy->fd);
 701    if (dri2_dpy->driver_name == NULL) {
 702       err = "DRI2: failed to get driver name";
 703       goto cleanup_device;
 704    }
 705
 706    if (!dri2_load_driver(dpy)) {
 707       err = "DRI2: failed to load driver";
 708       goto cleanup_device;
 709    }
 710
 711    dri2_dpy->dri2_loader_extension.base.name = __DRI_DRI2_LOADER;
 712    dri2_dpy->dri2_loader_extension.base.version = 3;
 713    dri2_dpy->dri2_loader_extension.getBuffers = NULL;
 714    dri2_dpy->dri2_loader_extension.flushFrontBuffer = droid_flush_front_buffer;
 715    dri2_dpy->dri2_loader_extension.getBuffersWithFormat =
 716       droid_get_buffers_with_format;
 717
 718    dri2_dpy->extensions[0] = &dri2_dpy->dri2_loader_extension.base;
 719    dri2_dpy->extensions[1] = &image_lookup_extension.base;
 720    dri2_dpy->extensions[2] = &use_invalidate.base;
 721    dri2_dpy->extensions[3] = NULL;
 722
 723    if (!dri2_create_screen(dpy)) {
 724       err = "DRI2: failed to create screen";
 725       goto cleanup_driver;
 726    }
 727
 728    if (!droid_add_configs_for_visuals(drv, dpy)) {
 729       err = "DRI2: failed to add configs";
 730       goto cleanup_screen;
 731    }
 732
 733    dpy->Extensions.ANDROID_image_native_buffer = EGL_TRUE;
 734    dpy->Extensions.KHR_image_base = EGL_TRUE;
 735
 736    /* we're supporting EGL 1.4 */
 737    dpy->VersionMajor = 1;
 738    dpy->VersionMinor = 4;
 739
 740    droid_init_driver_functions(drv);
 741
 742    return EGL_TRUE;
 743
 744 cleanup_screen:
 745    dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
 746 cleanup_driver:
 747    dlclose(dri2_dpy->driver);
 748 cleanup_device:
 749    close(dri2_dpy->fd);
 750 cleanup_display:
 751    free(dri2_dpy);
 752
 753    return _eglError(EGL_NOT_INITIALIZED, err);
 754 }