src/gallium/state_trackers/egl/common/egl_g3d.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  7.8
   4  *
   5  * Copyright (C) 2009-2010 Chia-I Wu <olv@0xlab.org>
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  23  * DEALINGS IN THE SOFTWARE.
  24  */
  25
  26 #include "egldriver.h"
  27 #include "eglcurrent.h"
  28 #include "egllog.h"
  29
  30 #include "pipe/p_screen.h"
  31 #include "util/u_memory.h"
  32 #include "util/u_format.h"
  33 #include "util/u_string.h"
  34
  35 #include "egl_g3d.h"
  36 #include "egl_g3d_api.h"
  37 #include "egl_g3d_st.h"
  38 #include "egl_g3d_loader.h"
  39 #include "native.h"
  40
  41 static void
  42 egl_g3d_invalid_surface(struct native_display *ndpy,
  43                         struct native_surface *nsurf,
  44                         unsigned int seq_num)
  45 {
  46    /* XXX not thread safe? */
  47    struct egl_g3d_surface *gsurf = egl_g3d_surface(nsurf->user_data);
  48    struct egl_g3d_context *gctx;
  49
  50    /*
  51     * Some functions such as egl_g3d_copy_buffers create a temporary native
  52     * surface.  There is no gsurf associated with it.
  53     */
  54    gctx = (gsurf) ? egl_g3d_context(gsurf->base.CurrentContext) : NULL;
  55    if (gctx)
  56       gctx->stctxi->notify_invalid_framebuffer(gctx->stctxi, gsurf->stfbi);
  57 }
  58
  59 static struct pipe_screen *
  60 egl_g3d_new_drm_screen(struct native_display *ndpy, const char *name, int fd)
  61 {
  62    _EGLDisplay *dpy = (_EGLDisplay *) ndpy->user_data;
  63    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
  64    return gdpy->loader->create_drm_screen(name, fd);
  65 }
  66
  67 static struct pipe_screen *
  68 egl_g3d_new_sw_screen(struct native_display *ndpy, struct sw_winsys *ws)
  69 {
  70    _EGLDisplay *dpy = (_EGLDisplay *) ndpy->user_data;
  71    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
  72    return gdpy->loader->create_sw_screen(ws);
  73 }
  74
  75 static struct native_event_handler egl_g3d_native_event_handler = {
  76    egl_g3d_invalid_surface,
  77    egl_g3d_new_drm_screen,
  78    egl_g3d_new_sw_screen
  79 };
  80
  81 /**
  82  * Get the native platform.
  83  */
  84 static const struct native_platform *
  85 egl_g3d_get_platform(_EGLDriver *drv, _EGLPlatformType plat)
  86 {
  87    struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
  88
  89    if (!gdrv->platforms[plat]) {
  90       const char *plat_name = NULL;
  91       const struct native_platform *nplat = NULL;
  92
  93       switch (plat) {
  94       case _EGL_PLATFORM_WINDOWS:
  95          plat_name = "Windows";
  96 #ifdef HAVE_GDI_BACKEND
  97          nplat = native_get_gdi_platform();
  98 #endif
  99          break;
 100       case _EGL_PLATFORM_X11:
 101          plat_name = "X11";
 102 #ifdef HAVE_X11_BACKEND
 103          nplat = native_get_x11_platform();
 104 #endif
 105       case _EGL_PLATFORM_WAYLAND:
 106          plat_name = "wayland";
 107 #ifdef HAVE_WAYLAND_BACKEND
 108          nplat = native_get_wayland_platform();
 109 #endif
 110          break;
 111       case _EGL_PLATFORM_DRM:
 112          plat_name = "DRM";
 113 #ifdef HAVE_DRM_BACKEND
 114          nplat = native_get_drm_platform();
 115 #endif
 116          break;
 117       case _EGL_PLATFORM_FBDEV:
 118          plat_name = "FBDEV";
 119 #ifdef HAVE_FBDEV_BACKEND
 120          nplat = native_get_fbdev_platform();
 121 #endif
 122          break;
 123       default:
 124          break;
 125       }
 126
 127       if (nplat)
 128          nplat->set_event_handler(&egl_g3d_native_event_handler);
 129       else
 130          _eglLog(_EGL_WARNING, "unsupported platform %s", plat_name);
 131
 132       gdrv->platforms[plat] = nplat;
 133    }
 134
 135    return gdrv->platforms[plat];
 136 }
 137
 138 #ifdef EGL_MESA_screen_surface
 139
 140 static void
 141 egl_g3d_add_screens(_EGLDriver *drv, _EGLDisplay *dpy)
 142 {
 143    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
 144    const struct native_connector **native_connectors;
 145    EGLint num_connectors, i;
 146
 147    native_connectors =
 148       gdpy->native->modeset->get_connectors(gdpy->native, &num_connectors, NULL);
 149    if (!num_connectors) {
 150       if (native_connectors)
 151          FREE(native_connectors);
 152       return;
 153    }
 154
 155    for (i = 0; i < num_connectors; i++) {
 156       const struct native_connector *nconn = native_connectors[i];
 157       struct egl_g3d_screen *gscr;
 158       const struct native_mode **native_modes;
 159       EGLint num_modes, j;
 160
 161       /* TODO support for hotplug */
 162       native_modes =
 163          gdpy->native->modeset->get_modes(gdpy->native, nconn, &num_modes);
 164       if (!num_modes) {
 165          if (native_modes)
 166             FREE(native_modes);
 167          continue;
 168       }
 169
 170       gscr = CALLOC_STRUCT(egl_g3d_screen);
 171       if (!gscr) {
 172          FREE(native_modes);
 173          continue;
 174       }
 175
 176       _eglInitScreen(&gscr->base, dpy, num_modes);
 177       for (j = 0; j < gscr->base.NumModes; j++) {
 178          const struct native_mode *nmode = native_modes[j];
 179          _EGLMode *mode = &gscr->base.Modes[j];
 180
 181          mode->Width = nmode->width;
 182          mode->Height = nmode->height;
 183          mode->RefreshRate = nmode->refresh_rate;
 184          mode->Optimal = EGL_FALSE;
 185          mode->Interlaced = EGL_FALSE;
 186          /* no need to strdup() */
 187          mode->Name = nmode->desc;
 188       }
 189
 190       gscr->native = nconn;
 191       gscr->native_modes = native_modes;
 192
 193       _eglLinkScreen(&gscr->base);
 194    }
 195
 196    FREE(native_connectors);
 197 }
 198
 199 #endif /* EGL_MESA_screen_surface */
 200
 201 /**
 202  * Initialize and validate the EGL config attributes.
 203  */
 204 static EGLBoolean
 205 init_config_attributes(_EGLConfig *conf, const struct native_config *nconf,
 206                        EGLint api_mask, enum pipe_format depth_stencil_format,
 207                        EGLBoolean preserve_buffer, EGLint max_swap_interval)
 208 {
 209    uint rgba[4], depth_stencil[2], buffer_size;
 210    EGLint surface_type;
 211    EGLint i;
 212
 213    /* get the color and depth/stencil component sizes */
 214    assert(nconf->color_format != PIPE_FORMAT_NONE);
 215    buffer_size = 0;
 216    for (i = 0; i < 4; i++) {
 217       rgba[i] = util_format_get_component_bits(nconf->color_format,
 218             UTIL_FORMAT_COLORSPACE_RGB, i);
 219       buffer_size += rgba[i];
 220    }
 221    for (i = 0; i < 2; i++) {
 222       if (depth_stencil_format != PIPE_FORMAT_NONE) {
 223          depth_stencil[i] =
 224             util_format_get_component_bits(depth_stencil_format,
 225                UTIL_FORMAT_COLORSPACE_ZS, i);
 226       }
 227       else {
 228          depth_stencil[i] = 0;
 229       }
 230    }
 231
 232    surface_type = 0x0;
 233    /* pixmap surfaces should be EGL_SINGLE_BUFFER */
 234    if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_FRONT_LEFT)) {
 235       if (nconf->pixmap_bit)
 236          surface_type |= EGL_PIXMAP_BIT;
 237    }
 238    /* the others surfaces should be EGL_BACK_BUFFER (or settable) */
 239    if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_BACK_LEFT)) {
 240       if (nconf->window_bit)
 241          surface_type |= EGL_WINDOW_BIT;
 242 #ifdef EGL_MESA_screen_surface
 243       if (nconf->scanout_bit)
 244          surface_type |= EGL_SCREEN_BIT_MESA;
 245 #endif
 246       surface_type |= EGL_PBUFFER_BIT;
 247    }
 248
 249    conf->Conformant = api_mask;
 250    conf->RenderableType = api_mask;
 251
 252    conf->RedSize = rgba[0];
 253    conf->GreenSize = rgba[1];
 254    conf->BlueSize = rgba[2];
 255    conf->AlphaSize = rgba[3];
 256    conf->BufferSize = buffer_size;
 257
 258    conf->DepthSize = depth_stencil[0];
 259    conf->StencilSize = depth_stencil[1];
 260
 261    conf->SurfaceType = surface_type;
 262
 263    conf->NativeRenderable = EGL_TRUE;
 264    if (surface_type & EGL_WINDOW_BIT) {
 265       conf->NativeVisualID = nconf->native_visual_id;
 266       conf->NativeVisualType = nconf->native_visual_type;
 267    }
 268
 269    if (surface_type & EGL_PBUFFER_BIT) {
 270       conf->BindToTextureRGB = EGL_TRUE;
 271       if (rgba[3])
 272          conf->BindToTextureRGBA = EGL_TRUE;
 273
 274       conf->MaxPbufferWidth = 4096;
 275       conf->MaxPbufferHeight = 4096;
 276       conf->MaxPbufferPixels = 4096 * 4096;
 277    }
 278
 279    conf->Level = nconf->level;
 280
 281    if (nconf->transparent_rgb) {
 282       conf->TransparentType = EGL_TRANSPARENT_RGB;
 283       conf->TransparentRedValue = nconf->transparent_rgb_values[0];
 284       conf->TransparentGreenValue = nconf->transparent_rgb_values[1];
 285       conf->TransparentBlueValue = nconf->transparent_rgb_values[2];
 286    }
 287
 288    conf->MinSwapInterval = 0;
 289    conf->MaxSwapInterval = max_swap_interval;
 290    if (preserve_buffer)
 291       conf->SurfaceType |= EGL_SWAP_BEHAVIOR_PRESERVED_BIT;
 292
 293    return _eglValidateConfig(conf, EGL_FALSE);
 294 }
 295
 296 /**
 297  * Initialize an EGL config from the native config.
 298  */
 299 static EGLBoolean
 300 egl_g3d_init_config(_EGLDriver *drv, _EGLDisplay *dpy,
 301                     _EGLConfig *conf, const struct native_config *nconf,
 302                     enum pipe_format depth_stencil_format,
 303                     int preserve_buffer, int max_swap_interval)
 304 {
 305    struct egl_g3d_config *gconf = egl_g3d_config(conf);
 306    EGLint buffer_mask;
 307    EGLBoolean valid;
 308
 309    buffer_mask = 0x0;
 310    if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_FRONT_LEFT))
 311       buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 312    if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_BACK_LEFT))
 313       buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 314    if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_FRONT_RIGHT))
 315       buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 316    if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_BACK_RIGHT))
 317       buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 318
 319    gconf->stvis.buffer_mask = buffer_mask;
 320    gconf->stvis.color_format = nconf->color_format;
 321    gconf->stvis.depth_stencil_format = depth_stencil_format;
 322    gconf->stvis.accum_format = PIPE_FORMAT_NONE;
 323    gconf->stvis.samples = 0;
 324
 325    /* will be overridden per surface */
 326    gconf->stvis.render_buffer = (buffer_mask & ST_ATTACHMENT_BACK_LEFT_MASK) ?
 327       ST_ATTACHMENT_BACK_LEFT : ST_ATTACHMENT_FRONT_LEFT;
 328
 329    valid = init_config_attributes(&gconf->base,
 330          nconf, dpy->ClientAPIs, depth_stencil_format,
 331          preserve_buffer, max_swap_interval);
 332    if (!valid) {
 333       _eglLog(_EGL_DEBUG, "skip invalid config 0x%x", nconf->native_visual_id);
 334       return EGL_FALSE;
 335    }
 336
 337    gconf->native = nconf;
 338
 339    return EGL_TRUE;
 340 }
 341
 342 /**
 343  * Get all interested depth/stencil formats of a display.
 344  */
 345 static EGLint
 346 egl_g3d_fill_depth_stencil_formats(_EGLDisplay *dpy,
 347                                    enum pipe_format formats[8])
 348 {
 349    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
 350    struct pipe_screen *screen = gdpy->native->screen;
 351    const EGLint candidates[] = {
 352       1, PIPE_FORMAT_Z16_UNORM,
 353       1, PIPE_FORMAT_Z32_UNORM,
 354       2, PIPE_FORMAT_Z24_UNORM_S8_USCALED, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
 355       2, PIPE_FORMAT_Z24X8_UNORM, PIPE_FORMAT_X8Z24_UNORM,
 356       0
 357    };
 358    const EGLint *fmt = candidates;
 359    EGLint count;
 360
 361    count = 0;
 362    formats[count++] = PIPE_FORMAT_NONE;
 363
 364    while (*fmt) {
 365       EGLint i, n = *fmt++;
 366
 367       /* pick the first supported format */
 368       for (i = 0; i < n; i++) {
 369          if (screen->is_format_supported(screen, fmt[i],
 370                   PIPE_TEXTURE_2D, 0, PIPE_BIND_DEPTH_STENCIL, 0)) {
 371             formats[count++] = fmt[i];
 372             break;
 373          }
 374       }
 375
 376       fmt += n;
 377    }
 378
 379    return count;
 380 }
 381
 382 /**
 383  * Add configs to display and return the next config ID.
 384  */
 385 static EGLint
 386 egl_g3d_add_configs(_EGLDriver *drv, _EGLDisplay *dpy, EGLint id)
 387 {
 388    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
 389    const struct native_config **native_configs;
 390    enum pipe_format depth_stencil_formats[8];
 391    int num_formats, num_configs, i, j;
 392    int preserve_buffer, max_swap_interval;
 393
 394    native_configs = gdpy->native->get_configs(gdpy->native, &num_configs);
 395    if (!num_configs) {
 396       if (native_configs)
 397          FREE(native_configs);
 398       return id;
 399    }
 400
 401    preserve_buffer =
 402       gdpy->native->get_param(gdpy->native, NATIVE_PARAM_PRESERVE_BUFFER);
 403    max_swap_interval =
 404       gdpy->native->get_param(gdpy->native, NATIVE_PARAM_MAX_SWAP_INTERVAL);
 405
 406    num_formats = egl_g3d_fill_depth_stencil_formats(dpy,
 407          depth_stencil_formats);
 408
 409    for (i = 0; i < num_configs; i++) {
 410       for (j = 0; j < num_formats; j++) {
 411          struct egl_g3d_config *gconf;
 412
 413          gconf = CALLOC_STRUCT(egl_g3d_config);
 414          if (gconf) {
 415             _eglInitConfig(&gconf->base, dpy, id);
 416             if (!egl_g3d_init_config(drv, dpy, &gconf->base,
 417                      native_configs[i], depth_stencil_formats[j],
 418                      preserve_buffer, max_swap_interval)) {
 419                FREE(gconf);
 420                break;
 421             }
 422
 423             _eglLinkConfig(&gconf->base);
 424             id++;
 425          }
 426       }
 427    }
 428
 429    FREE(native_configs);
 430    return id;
 431 }
 432
 433 static void
 434 egl_g3d_free_config(void *conf)
 435 {
 436    struct egl_g3d_config *gconf = egl_g3d_config((_EGLConfig *) conf);
 437    FREE(gconf);
 438 }
 439
 440 static void
 441 egl_g3d_free_screen(void *scr)
 442 {
 443 #ifdef EGL_MESA_screen_surface
 444    struct egl_g3d_screen *gscr = egl_g3d_screen((_EGLScreen *) scr);
 445    FREE(gscr->native_modes);
 446    FREE(gscr);
 447 #endif
 448 }
 449
 450 static EGLBoolean
 451 egl_g3d_terminate(_EGLDriver *drv, _EGLDisplay *dpy)
 452 {
 453    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
 454
 455    _eglReleaseDisplayResources(drv, dpy);
 456
 457    if (gdpy->pipe)
 458       gdpy->pipe->destroy(gdpy->pipe);
 459
 460    if (dpy->Configs) {
 461       _eglDestroyArray(dpy->Configs, egl_g3d_free_config);
 462       dpy->Configs = NULL;
 463    }
 464    if (dpy->Screens) {
 465       _eglDestroyArray(dpy->Screens, egl_g3d_free_screen);
 466       dpy->Screens = NULL;
 467    }
 468
 469    _eglCleanupDisplay(dpy);
 470
 471    if (gdpy->smapi)
 472       egl_g3d_destroy_st_manager(gdpy->smapi);
 473
 474    if (gdpy->native)
 475       gdpy->native->destroy(gdpy->native);
 476
 477    FREE(gdpy);
 478    dpy->DriverData = NULL;
 479
 480    return EGL_TRUE;
 481 }
 482
 483 static EGLBoolean
 484 egl_g3d_initialize(_EGLDriver *drv, _EGLDisplay *dpy)
 485 {
 486    struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
 487    struct egl_g3d_display *gdpy;
 488    const struct native_platform *nplat;
 489
 490    nplat = egl_g3d_get_platform(drv, dpy->Platform);
 491    if (!nplat)
 492       return EGL_FALSE;
 493
 494    if (dpy->Options.TestOnly)
 495       return EGL_TRUE;
 496
 497    gdpy = CALLOC_STRUCT(egl_g3d_display);
 498    if (!gdpy) {
 499       _eglError(EGL_BAD_ALLOC, "eglInitialize");
 500       goto fail;
 501    }
 502    gdpy->loader = gdrv->loader;
 503    dpy->DriverData = gdpy;
 504
 505    _eglLog(_EGL_INFO, "use %s for display %p", nplat->name, dpy->PlatformDisplay);
 506    gdpy->native = nplat->create_display(dpy->PlatformDisplay,
 507          dpy->Options.UseFallback, (void *) dpy);
 508    if (!gdpy->native) {
 509       _eglError(EGL_NOT_INITIALIZED, "eglInitialize(no usable display)");
 510       goto fail;
 511    }
 512
 513    if (gdpy->loader->profile_masks[ST_API_OPENGL] & ST_PROFILE_DEFAULT_MASK)
 514       dpy->ClientAPIs |= EGL_OPENGL_BIT;
 515    if (gdpy->loader->profile_masks[ST_API_OPENGL] & ST_PROFILE_OPENGL_ES1_MASK)
 516       dpy->ClientAPIs |= EGL_OPENGL_ES_BIT;
 517    if (gdpy->loader->profile_masks[ST_API_OPENGL] & ST_PROFILE_OPENGL_ES2_MASK)
 518       dpy->ClientAPIs |= EGL_OPENGL_ES2_BIT;
 519    if (gdpy->loader->profile_masks[ST_API_OPENVG] & ST_PROFILE_DEFAULT_MASK)
 520       dpy->ClientAPIs |= EGL_OPENVG_BIT;
 521
 522    gdpy->smapi = egl_g3d_create_st_manager(dpy);
 523    if (!gdpy->smapi) {
 524       _eglError(EGL_NOT_INITIALIZED,
 525             "eglInitialize(failed to create st manager)");
 526       goto fail;
 527    }
 528
 529 #ifdef EGL_MESA_screen_surface
 530    /* enable MESA_screen_surface before adding (and validating) configs */
 531    if (gdpy->native->modeset) {
 532       dpy->Extensions.MESA_screen_surface = EGL_TRUE;
 533       egl_g3d_add_screens(drv, dpy);
 534    }
 535 #endif
 536
 537    dpy->Extensions.KHR_image_base = EGL_TRUE;
 538    if (gdpy->native->get_param(gdpy->native, NATIVE_PARAM_USE_NATIVE_BUFFER))
 539       dpy->Extensions.KHR_image_pixmap = EGL_TRUE;
 540
 541    dpy->Extensions.KHR_reusable_sync = EGL_TRUE;
 542    dpy->Extensions.KHR_fence_sync = EGL_TRUE;
 543
 544    dpy->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
 545    dpy->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
 546    dpy->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
 547
 548    if (dpy->Platform == _EGL_PLATFORM_DRM) {
 549       dpy->Extensions.MESA_drm_display = EGL_TRUE;
 550       if (gdpy->native->buffer)
 551          dpy->Extensions.MESA_drm_image = EGL_TRUE;
 552    }
 553
 554    if (dpy->Platform == _EGL_PLATFORM_WAYLAND && gdpy->native->buffer)
 555       dpy->Extensions.MESA_drm_image = EGL_TRUE;
 556
 557    if (egl_g3d_add_configs(drv, dpy, 1) == 1) {
 558       _eglError(EGL_NOT_INITIALIZED, "eglInitialize(unable to add configs)");
 559       goto fail;
 560    }
 561
 562    dpy->VersionMajor = 1;
 563    dpy->VersionMinor = 4;
 564
 565    return EGL_TRUE;
 566
 567 fail:
 568    if (gdpy)
 569       egl_g3d_terminate(drv, dpy);
 570    return EGL_FALSE;
 571 }
 572
 573 static _EGLProc
 574 egl_g3d_get_proc_address(_EGLDriver *drv, const char *procname)
 575 {
 576    struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
 577    struct st_api *stapi = NULL;
 578
 579    if (procname && procname[0] == 'v' && procname[1] == 'g')
 580       stapi = gdrv->loader->get_st_api(ST_API_OPENVG);
 581    else if (procname && procname[0] == 'g' && procname[1] == 'l')
 582       stapi = gdrv->loader->get_st_api(ST_API_OPENGL);
 583
 584    return (_EGLProc) ((stapi) ?
 585          stapi->get_proc_address(stapi, procname) : NULL);
 586 }
 587
 588 _EGLDriver *
 589 egl_g3d_create_driver(const struct egl_g3d_loader *loader)
 590 {
 591    struct egl_g3d_driver *gdrv;
 592
 593    gdrv = CALLOC_STRUCT(egl_g3d_driver);
 594    if (!gdrv)
 595       return NULL;
 596
 597    gdrv->loader = loader;
 598
 599    egl_g3d_init_driver_api(&gdrv->base);
 600    gdrv->base.API.Initialize = egl_g3d_initialize;
 601    gdrv->base.API.Terminate = egl_g3d_terminate;
 602    gdrv->base.API.GetProcAddress = egl_g3d_get_proc_address;
 603
 604    /* to be filled by the caller */
 605    gdrv->base.Name = NULL;
 606    gdrv->base.Unload = NULL;
 607
 608    return &gdrv->base;
 609 }
 610
 611 void
 612 egl_g3d_destroy_driver(_EGLDriver *drv)
 613 {
 614    struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
 615    FREE(gdrv);
 616 }