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 #include "util/u_atomic.h"
  35
  36 #include "egl_g3d.h"
  37 #include "egl_g3d_api.h"
  38 #include "egl_g3d_st.h"
  39 #include "egl_g3d_loader.h"
  40 #include "native.h"
  41
  42 static void
  43 egl_g3d_invalid_surface(struct native_display *ndpy,
  44                         struct native_surface *nsurf,
  45                         unsigned int seq_num)
  46 {
  47    /* XXX not thread safe? */
  48    struct egl_g3d_surface *gsurf = egl_g3d_surface(nsurf->user_data);
  49
  50    if (gsurf && gsurf->stfbi)
  51       p_atomic_inc(&gsurf->stfbi->stamp);
  52 }
  53
  54 static struct pipe_screen *
  55 egl_g3d_new_drm_screen(struct native_display *ndpy, const char *name, int fd)
  56 {
  57    _EGLDisplay *dpy = (_EGLDisplay *) ndpy->user_data;
  58    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
  59    return gdpy->loader->create_drm_screen(name, fd);
  60 }
  61
  62 static struct pipe_screen *
  63 egl_g3d_new_sw_screen(struct native_display *ndpy, struct sw_winsys *ws)
  64 {
  65    _EGLDisplay *dpy = (_EGLDisplay *) ndpy->user_data;
  66    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
  67    return gdpy->loader->create_sw_screen(ws);
  68 }
  69
  70 static struct pipe_resource *
  71 egl_g3d_lookup_egl_image(struct native_display *ndpy, void *egl_image)
  72 {
  73    _EGLDisplay *dpy = (_EGLDisplay *) ndpy->user_data;
  74    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
  75    struct st_egl_image img;
  76    struct pipe_resource *resource = NULL;
  77
  78    memset(&img, 0, sizeof(img));
  79    if (gdpy->smapi->get_egl_image(gdpy->smapi, egl_image, &img))
  80       resource = img.texture;
  81
  82    return resource;
  83 }
  84
  85 static const struct native_event_handler egl_g3d_native_event_handler = {
  86    egl_g3d_invalid_surface,
  87    egl_g3d_new_drm_screen,
  88    egl_g3d_new_sw_screen,
  89    egl_g3d_lookup_egl_image
  90 };
  91
  92 /**
  93  * Get the native platform.
  94  */
  95 static const struct native_platform *
  96 egl_g3d_get_platform(_EGLDriver *drv, _EGLPlatformType plat)
  97 {
  98    struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
  99
 100    if (!gdrv->platforms[plat]) {
 101       const char *plat_name = NULL;
 102       const struct native_platform *nplat = NULL;
 103
 104       switch (plat) {
 105       case _EGL_PLATFORM_WINDOWS:
 106          plat_name = "Windows";
 107 #ifdef HAVE_GDI_BACKEND
 108          nplat = native_get_gdi_platform(&egl_g3d_native_event_handler);
 109 #endif
 110          break;
 111       case _EGL_PLATFORM_X11:
 112          plat_name = "X11";
 113 #ifdef HAVE_X11_BACKEND
 114          nplat = native_get_x11_platform(&egl_g3d_native_event_handler);
 115 #endif
 116          break;
 117       case _EGL_PLATFORM_WAYLAND:
 118          plat_name = "wayland";
 119 #ifdef HAVE_WAYLAND_BACKEND
 120          nplat = native_get_wayland_platform(&egl_g3d_native_event_handler);
 121 #endif
 122          break;
 123       case _EGL_PLATFORM_DRM:
 124          plat_name = "DRM";
 125 #ifdef HAVE_DRM_BACKEND
 126          nplat = native_get_drm_platform(&egl_g3d_native_event_handler);
 127 #endif
 128          break;
 129       case _EGL_PLATFORM_FBDEV:
 130          plat_name = "FBDEV";
 131 #ifdef HAVE_FBDEV_BACKEND
 132          nplat = native_get_fbdev_platform(&egl_g3d_native_event_handler);
 133 #endif
 134          break;
 135       default:
 136          break;
 137       }
 138
 139       if (!nplat)
 140          _eglLog(_EGL_WARNING, "unsupported platform %s", plat_name);
 141
 142       gdrv->platforms[plat] = nplat;
 143    }
 144
 145    return gdrv->platforms[plat];
 146 }
 147
 148 #ifdef EGL_MESA_screen_surface
 149
 150 static void
 151 egl_g3d_add_screens(_EGLDriver *drv, _EGLDisplay *dpy)
 152 {
 153    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
 154    const struct native_connector **native_connectors;
 155    EGLint num_connectors, i;
 156
 157    native_connectors =
 158       gdpy->native->modeset->get_connectors(gdpy->native, &num_connectors, NULL);
 159    if (!num_connectors) {
 160       if (native_connectors)
 161          FREE(native_connectors);
 162       return;
 163    }
 164
 165    for (i = 0; i < num_connectors; i++) {
 166       const struct native_connector *nconn = native_connectors[i];
 167       struct egl_g3d_screen *gscr;
 168       const struct native_mode **native_modes;
 169       EGLint num_modes, j;
 170
 171       /* TODO support for hotplug */
 172       native_modes =
 173          gdpy->native->modeset->get_modes(gdpy->native, nconn, &num_modes);
 174       if (!num_modes) {
 175          if (native_modes)
 176             FREE(native_modes);
 177          continue;
 178       }
 179
 180       gscr = CALLOC_STRUCT(egl_g3d_screen);
 181       if (!gscr) {
 182          FREE(native_modes);
 183          continue;
 184       }
 185
 186       _eglInitScreen(&gscr->base, dpy, num_modes);
 187       for (j = 0; j < gscr->base.NumModes; j++) {
 188          const struct native_mode *nmode = native_modes[j];
 189          _EGLMode *mode = &gscr->base.Modes[j];
 190
 191          mode->Width = nmode->width;
 192          mode->Height = nmode->height;
 193          mode->RefreshRate = nmode->refresh_rate;
 194          mode->Optimal = EGL_FALSE;
 195          mode->Interlaced = EGL_FALSE;
 196          /* no need to strdup() */
 197          mode->Name = nmode->desc;
 198       }
 199
 200       gscr->native = nconn;
 201       gscr->native_modes = native_modes;
 202
 203       _eglLinkScreen(&gscr->base);
 204    }
 205
 206    FREE(native_connectors);
 207 }
 208
 209 #endif /* EGL_MESA_screen_surface */
 210
 211 /**
 212  * Initialize and validate the EGL config attributes.
 213  */
 214 static EGLBoolean
 215 init_config_attributes(_EGLConfig *conf, const struct native_config *nconf,
 216                        EGLint api_mask, enum pipe_format depth_stencil_format,
 217                        EGLBoolean preserve_buffer, EGLint max_swap_interval)
 218 {
 219    uint rgba[4], depth_stencil[2], buffer_size;
 220    EGLint surface_type;
 221    EGLint i;
 222
 223    /* get the color and depth/stencil component sizes */
 224    assert(nconf->color_format != PIPE_FORMAT_NONE);
 225    buffer_size = 0;
 226    for (i = 0; i < 4; i++) {
 227       rgba[i] = util_format_get_component_bits(nconf->color_format,
 228             UTIL_FORMAT_COLORSPACE_RGB, i);
 229       buffer_size += rgba[i];
 230    }
 231    for (i = 0; i < 2; i++) {
 232       if (depth_stencil_format != PIPE_FORMAT_NONE) {
 233          depth_stencil[i] =
 234             util_format_get_component_bits(depth_stencil_format,
 235                UTIL_FORMAT_COLORSPACE_ZS, i);
 236       }
 237       else {
 238          depth_stencil[i] = 0;
 239       }
 240    }
 241
 242    surface_type = 0x0;
 243    /* pixmap surfaces should be EGL_SINGLE_BUFFER */
 244    if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_FRONT_LEFT)) {
 245       if (nconf->pixmap_bit)
 246          surface_type |= EGL_PIXMAP_BIT;
 247    }
 248    /* the others surfaces should be EGL_BACK_BUFFER (or settable) */
 249    if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_BACK_LEFT)) {
 250       if (nconf->window_bit)
 251          surface_type |= EGL_WINDOW_BIT;
 252 #ifdef EGL_MESA_screen_surface
 253       if (nconf->scanout_bit)
 254          surface_type |= EGL_SCREEN_BIT_MESA;
 255 #endif
 256       surface_type |= EGL_PBUFFER_BIT;
 257    }
 258
 259    conf->Conformant = api_mask;
 260    conf->RenderableType = api_mask;
 261
 262    conf->RedSize = rgba[0];
 263    conf->GreenSize = rgba[1];
 264    conf->BlueSize = rgba[2];
 265    conf->AlphaSize = rgba[3];
 266    conf->BufferSize = buffer_size;
 267
 268    conf->DepthSize = depth_stencil[0];
 269    conf->StencilSize = depth_stencil[1];
 270
 271    /* st/vega will allocate the mask on demand */
 272    if (api_mask & EGL_OPENVG_BIT)
 273       conf->AlphaMaskSize = 8;
 274
 275    conf->SurfaceType = surface_type;
 276
 277    conf->NativeRenderable = EGL_TRUE;
 278    if (surface_type & EGL_WINDOW_BIT) {
 279       conf->NativeVisualID = nconf->native_visual_id;
 280       conf->NativeVisualType = nconf->native_visual_type;
 281    }
 282
 283    if (surface_type & EGL_PBUFFER_BIT) {
 284       conf->BindToTextureRGB = EGL_TRUE;
 285       if (rgba[3])
 286          conf->BindToTextureRGBA = EGL_TRUE;
 287
 288       conf->MaxPbufferWidth = 4096;
 289       conf->MaxPbufferHeight = 4096;
 290       conf->MaxPbufferPixels = 4096 * 4096;
 291    }
 292
 293    conf->Level = nconf->level;
 294
 295    if (nconf->transparent_rgb) {
 296       conf->TransparentType = EGL_TRANSPARENT_RGB;
 297       conf->TransparentRedValue = nconf->transparent_rgb_values[0];
 298       conf->TransparentGreenValue = nconf->transparent_rgb_values[1];
 299       conf->TransparentBlueValue = nconf->transparent_rgb_values[2];
 300    }
 301
 302    conf->MinSwapInterval = 0;
 303    conf->MaxSwapInterval = max_swap_interval;
 304    if (preserve_buffer)
 305       conf->SurfaceType |= EGL_SWAP_BEHAVIOR_PRESERVED_BIT;
 306
 307    return _eglValidateConfig(conf, EGL_FALSE);
 308 }
 309
 310 /**
 311  * Initialize an EGL config from the native config.
 312  */
 313 static EGLBoolean
 314 egl_g3d_init_config(_EGLDriver *drv, _EGLDisplay *dpy,
 315                     _EGLConfig *conf, const struct native_config *nconf,
 316                     enum pipe_format depth_stencil_format,
 317                     int preserve_buffer, int max_swap_interval)
 318 {
 319    struct egl_g3d_config *gconf = egl_g3d_config(conf);
 320    EGLint buffer_mask;
 321    EGLBoolean valid;
 322
 323    buffer_mask = 0x0;
 324    if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_FRONT_LEFT))
 325       buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 326    if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_BACK_LEFT))
 327       buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 328    if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_FRONT_RIGHT))
 329       buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 330    if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_BACK_RIGHT))
 331       buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 332
 333    gconf->stvis.buffer_mask = buffer_mask;
 334    gconf->stvis.color_format = nconf->color_format;
 335    gconf->stvis.depth_stencil_format = depth_stencil_format;
 336    gconf->stvis.accum_format = PIPE_FORMAT_NONE;
 337    gconf->stvis.samples = 0;
 338
 339    /* will be overridden per surface */
 340    gconf->stvis.render_buffer = (buffer_mask & ST_ATTACHMENT_BACK_LEFT_MASK) ?
 341       ST_ATTACHMENT_BACK_LEFT : ST_ATTACHMENT_FRONT_LEFT;
 342
 343    valid = init_config_attributes(&gconf->base,
 344          nconf, dpy->ClientAPIs, depth_stencil_format,
 345          preserve_buffer, max_swap_interval);
 346    if (!valid) {
 347       _eglLog(_EGL_DEBUG, "skip invalid config 0x%x", nconf->native_visual_id);
 348       return EGL_FALSE;
 349    }
 350
 351    gconf->native = nconf;
 352
 353    return EGL_TRUE;
 354 }
 355
 356 /**
 357  * Get all interested depth/stencil formats of a display.
 358  */
 359 static EGLint
 360 egl_g3d_fill_depth_stencil_formats(_EGLDisplay *dpy,
 361                                    enum pipe_format formats[8])
 362 {
 363    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
 364    struct pipe_screen *screen = gdpy->native->screen;
 365    const EGLint candidates[] = {
 366       1, PIPE_FORMAT_Z16_UNORM,
 367       1, PIPE_FORMAT_Z32_UNORM,
 368       2, PIPE_FORMAT_Z24_UNORM_S8_USCALED, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
 369       2, PIPE_FORMAT_Z24X8_UNORM, PIPE_FORMAT_X8Z24_UNORM,
 370       0
 371    };
 372    const EGLint *fmt = candidates;
 373    EGLint count;
 374
 375    count = 0;
 376    formats[count++] = PIPE_FORMAT_NONE;
 377
 378    while (*fmt) {
 379       EGLint i, n = *fmt++;
 380
 381       /* pick the first supported format */
 382       for (i = 0; i < n; i++) {
 383          if (screen->is_format_supported(screen, fmt[i],
 384                   PIPE_TEXTURE_2D, 0, PIPE_BIND_DEPTH_STENCIL)) {
 385             formats[count++] = fmt[i];
 386             break;
 387          }
 388       }
 389
 390       fmt += n;
 391    }
 392
 393    return count;
 394 }
 395
 396 /**
 397  * Add configs to display and return the next config ID.
 398  */
 399 static EGLint
 400 egl_g3d_add_configs(_EGLDriver *drv, _EGLDisplay *dpy, EGLint id)
 401 {
 402    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
 403    const struct native_config **native_configs;
 404    enum pipe_format depth_stencil_formats[8];
 405    int num_formats, num_configs, i, j;
 406    int preserve_buffer, max_swap_interval;
 407
 408    native_configs = gdpy->native->get_configs(gdpy->native, &num_configs);
 409    if (!num_configs) {
 410       if (native_configs)
 411          FREE(native_configs);
 412       return id;
 413    }
 414
 415    preserve_buffer =
 416       gdpy->native->get_param(gdpy->native, NATIVE_PARAM_PRESERVE_BUFFER);
 417    max_swap_interval =
 418       gdpy->native->get_param(gdpy->native, NATIVE_PARAM_MAX_SWAP_INTERVAL);
 419
 420    num_formats = egl_g3d_fill_depth_stencil_formats(dpy,
 421          depth_stencil_formats);
 422
 423    for (i = 0; i < num_configs; i++) {
 424       for (j = 0; j < num_formats; j++) {
 425          struct egl_g3d_config *gconf;
 426
 427          gconf = CALLOC_STRUCT(egl_g3d_config);
 428          if (gconf) {
 429             _eglInitConfig(&gconf->base, dpy, id);
 430             if (!egl_g3d_init_config(drv, dpy, &gconf->base,
 431                      native_configs[i], depth_stencil_formats[j],
 432                      preserve_buffer, max_swap_interval)) {
 433                FREE(gconf);
 434                break;
 435             }
 436
 437             _eglLinkConfig(&gconf->base);
 438             id++;
 439          }
 440       }
 441    }
 442
 443    FREE(native_configs);
 444    return id;
 445 }
 446
 447 static void
 448 egl_g3d_free_config(void *conf)
 449 {
 450    struct egl_g3d_config *gconf = egl_g3d_config((_EGLConfig *) conf);
 451    FREE(gconf);
 452 }
 453
 454 static void
 455 egl_g3d_free_screen(void *scr)
 456 {
 457 #ifdef EGL_MESA_screen_surface
 458    struct egl_g3d_screen *gscr = egl_g3d_screen((_EGLScreen *) scr);
 459    FREE(gscr->native_modes);
 460    FREE(gscr);
 461 #endif
 462 }
 463
 464 static EGLBoolean
 465 egl_g3d_terminate(_EGLDriver *drv, _EGLDisplay *dpy)
 466 {
 467    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
 468
 469    _eglReleaseDisplayResources(drv, dpy);
 470
 471    if (dpy->Configs) {
 472       _eglDestroyArray(dpy->Configs, egl_g3d_free_config);
 473       dpy->Configs = NULL;
 474    }
 475    if (dpy->Screens) {
 476       _eglDestroyArray(dpy->Screens, egl_g3d_free_screen);
 477       dpy->Screens = NULL;
 478    }
 479
 480    _eglCleanupDisplay(dpy);
 481
 482    if (gdpy->smapi)
 483       egl_g3d_destroy_st_manager(gdpy->smapi);
 484
 485    if (gdpy->native)
 486       gdpy->native->destroy(gdpy->native);
 487
 488    FREE(gdpy);
 489    dpy->DriverData = NULL;
 490
 491    return EGL_TRUE;
 492 }
 493
 494 static EGLBoolean
 495 egl_g3d_initialize(_EGLDriver *drv, _EGLDisplay *dpy)
 496 {
 497    struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
 498    struct egl_g3d_display *gdpy;
 499    const struct native_platform *nplat;
 500
 501    nplat = egl_g3d_get_platform(drv, dpy->Platform);
 502    if (!nplat)
 503       return EGL_FALSE;
 504
 505    if (dpy->Options.TestOnly)
 506       return EGL_TRUE;
 507
 508    gdpy = CALLOC_STRUCT(egl_g3d_display);
 509    if (!gdpy) {
 510       _eglError(EGL_BAD_ALLOC, "eglInitialize");
 511       goto fail;
 512    }
 513    gdpy->loader = gdrv->loader;
 514    dpy->DriverData = gdpy;
 515
 516    _eglLog(_EGL_INFO, "use %s for display %p",
 517          nplat->name, dpy->PlatformDisplay);
 518    gdpy->native =
 519       nplat->create_display(dpy->PlatformDisplay, dpy->Options.UseFallback);
 520    if (!gdpy->native) {
 521       _eglError(EGL_NOT_INITIALIZED, "eglInitialize(no usable display)");
 522       goto fail;
 523    }
 524    gdpy->native->user_data = (void *) dpy;
 525    if (!gdpy->native->init_screen(gdpy->native)) {
 526       _eglError(EGL_NOT_INITIALIZED,
 527             "eglInitialize(failed to initialize screen)");
 528       goto fail;
 529    }
 530
 531    if (gdpy->loader->profile_masks[ST_API_OPENGL] & ST_PROFILE_DEFAULT_MASK)
 532       dpy->ClientAPIs |= EGL_OPENGL_BIT;
 533    if (gdpy->loader->profile_masks[ST_API_OPENGL] & ST_PROFILE_OPENGL_ES1_MASK)
 534       dpy->ClientAPIs |= EGL_OPENGL_ES_BIT;
 535    if (gdpy->loader->profile_masks[ST_API_OPENGL] & ST_PROFILE_OPENGL_ES2_MASK)
 536       dpy->ClientAPIs |= EGL_OPENGL_ES2_BIT;
 537    if (gdpy->loader->profile_masks[ST_API_OPENVG] & ST_PROFILE_DEFAULT_MASK)
 538       dpy->ClientAPIs |= EGL_OPENVG_BIT;
 539
 540    gdpy->smapi = egl_g3d_create_st_manager(dpy);
 541    if (!gdpy->smapi) {
 542       _eglError(EGL_NOT_INITIALIZED,
 543             "eglInitialize(failed to create st manager)");
 544       goto fail;
 545    }
 546
 547 #ifdef EGL_MESA_screen_surface
 548    /* enable MESA_screen_surface before adding (and validating) configs */
 549    if (gdpy->native->modeset) {
 550       dpy->Extensions.MESA_screen_surface = EGL_TRUE;
 551       egl_g3d_add_screens(drv, dpy);
 552    }
 553 #endif
 554
 555    dpy->Extensions.KHR_image_base = EGL_TRUE;
 556    if (gdpy->native->get_param(gdpy->native, NATIVE_PARAM_USE_NATIVE_BUFFER))
 557       dpy->Extensions.KHR_image_pixmap = EGL_TRUE;
 558
 559    dpy->Extensions.KHR_reusable_sync = EGL_TRUE;
 560    dpy->Extensions.KHR_fence_sync = EGL_TRUE;
 561
 562    dpy->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
 563    dpy->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
 564    dpy->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
 565
 566    if (dpy->Platform == _EGL_PLATFORM_DRM) {
 567       dpy->Extensions.MESA_drm_display = EGL_TRUE;
 568       if (gdpy->native->buffer)
 569          dpy->Extensions.MESA_drm_image = EGL_TRUE;
 570    }
 571
 572    if (dpy->Platform == _EGL_PLATFORM_WAYLAND && gdpy->native->buffer)
 573       dpy->Extensions.MESA_drm_image = EGL_TRUE;
 574
 575 #ifdef EGL_WL_bind_wayland_display
 576    if (gdpy->native->wayland_bufmgr)
 577       dpy->Extensions.WL_bind_wayland_display = EGL_TRUE;
 578 #endif
 579
 580    if (egl_g3d_add_configs(drv, dpy, 1) == 1) {
 581       _eglError(EGL_NOT_INITIALIZED, "eglInitialize(unable to add configs)");
 582       goto fail;
 583    }
 584
 585    dpy->VersionMajor = 1;
 586    dpy->VersionMinor = 4;
 587
 588    return EGL_TRUE;
 589
 590 fail:
 591    if (gdpy)
 592       egl_g3d_terminate(drv, dpy);
 593    return EGL_FALSE;
 594 }
 595
 596 static _EGLProc
 597 egl_g3d_get_proc_address(_EGLDriver *drv, const char *procname)
 598 {
 599    struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
 600    struct st_api *stapi = NULL;
 601
 602    if (procname && procname[0] == 'v' && procname[1] == 'g')
 603       stapi = gdrv->loader->get_st_api(ST_API_OPENVG);
 604    else if (procname && procname[0] == 'g' && procname[1] == 'l')
 605       stapi = gdrv->loader->get_st_api(ST_API_OPENGL);
 606
 607    return (_EGLProc) ((stapi) ?
 608          stapi->get_proc_address(stapi, procname) : NULL);
 609 }
 610
 611 _EGLDriver *
 612 egl_g3d_create_driver(const struct egl_g3d_loader *loader)
 613 {
 614    struct egl_g3d_driver *gdrv;
 615
 616    gdrv = CALLOC_STRUCT(egl_g3d_driver);
 617    if (!gdrv)
 618       return NULL;
 619
 620    gdrv->loader = loader;
 621
 622    egl_g3d_init_driver_api(&gdrv->base);
 623    gdrv->base.API.Initialize = egl_g3d_initialize;
 624    gdrv->base.API.Terminate = egl_g3d_terminate;
 625    gdrv->base.API.GetProcAddress = egl_g3d_get_proc_address;
 626
 627    /* to be filled by the caller */
 628    gdrv->base.Name = NULL;
 629    gdrv->base.Unload = NULL;
 630
 631    return &gdrv->base;
 632 }
 633
 634 void
 635 egl_g3d_destroy_driver(_EGLDriver *drv)
 636 {
 637    struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
 638    FREE(gdrv);
 639 }