static void dri2_x11_setup_swap_interval(_EGLDisplay *disp) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); int arbitrary_max_interval = 1000; /* default behavior for no SwapBuffers support: no vblank syncing * either. */ dri2_dpy->min_swap_interval = 0; dri2_dpy->max_swap_interval = 0; dri2_dpy->default_swap_interval = 0; if (!dri2_dpy->swap_available) return; /* If we do have swapbuffers, then we can support pretty much any swap * interval. */ dri2_setup_swap_interval(disp, arbitrary_max_interval); }
static EGLBoolean dri2_initialize_x11_dri2(_EGLDriver *drv, _EGLDisplay *disp) { struct dri2_egl_display *dri2_dpy; drv->API.CreateWindowSurface = dri2_create_window_surface; drv->API.CreatePixmapSurface = dri2_create_pixmap_surface; drv->API.CreatePbufferSurface = dri2_create_pbuffer_surface; drv->API.DestroySurface = dri2_destroy_surface; drv->API.SwapBuffers = dri2_swap_buffers; drv->API.CopyBuffers = dri2_copy_buffers; drv->API.CreateImageKHR = dri2_x11_create_image_khr; drv->API.SwapBuffersRegionNOK = dri2_swap_buffers_region; drv->API.PostSubBufferNV = dri2_post_sub_buffer; drv->API.SwapInterval = dri2_swap_interval; dri2_dpy = calloc(1, sizeof *dri2_dpy); if (!dri2_dpy) return _eglError(EGL_BAD_ALLOC, "eglInitialize"); disp->DriverData = (void *) dri2_dpy; if (disp->PlatformDisplay == NULL) { dri2_dpy->conn = xcb_connect(0, 0); } else { dri2_dpy->conn = XGetXCBConnection((Display *) disp->PlatformDisplay); } if (xcb_connection_has_error(dri2_dpy->conn)) { _eglLog(_EGL_WARNING, "DRI2: xcb_connect failed"); goto cleanup_dpy; } if (dri2_dpy->conn) { if (!dri2_connect(dri2_dpy)) goto cleanup_conn; } if (!dri2_load_driver(disp)) goto cleanup_conn; #ifdef O_CLOEXEC dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR | O_CLOEXEC); if (dri2_dpy->fd == -1 && errno == EINVAL) #endif { dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR); if (dri2_dpy->fd != -1) fcntl(dri2_dpy->fd, F_SETFD, fcntl(dri2_dpy->fd, F_GETFD) | FD_CLOEXEC); } if (dri2_dpy->fd == -1) { _eglLog(_EGL_WARNING, "DRI2: could not open %s (%s)", dri2_dpy->device_name, strerror(errno)); goto cleanup_driver; } if (dri2_dpy->conn) { if (!dri2_authenticate(disp)) goto cleanup_fd; } if (dri2_dpy->dri2_minor >= 1) { dri2_dpy->dri2_loader_extension.base.name = __DRI_DRI2_LOADER; dri2_dpy->dri2_loader_extension.base.version = 3; dri2_dpy->dri2_loader_extension.getBuffers = dri2_get_buffers; dri2_dpy->dri2_loader_extension.flushFrontBuffer = dri2_flush_front_buffer; dri2_dpy->dri2_loader_extension.getBuffersWithFormat = dri2_get_buffers_with_format; } else { dri2_dpy->dri2_loader_extension.base.name = __DRI_DRI2_LOADER; dri2_dpy->dri2_loader_extension.base.version = 2; dri2_dpy->dri2_loader_extension.getBuffers = dri2_get_buffers; dri2_dpy->dri2_loader_extension.flushFrontBuffer = dri2_flush_front_buffer; dri2_dpy->dri2_loader_extension.getBuffersWithFormat = NULL; } dri2_dpy->extensions[0] = &dri2_dpy->dri2_loader_extension.base; dri2_dpy->extensions[1] = &image_lookup_extension.base; dri2_dpy->extensions[2] = NULL; dri2_dpy->swap_available = (dri2_dpy->dri2_minor >= 2); dri2_dpy->invalidate_available = (dri2_dpy->dri2_minor >= 3); if (!dri2_create_screen(disp)) goto cleanup_fd; dri2_setup_swap_interval(dri2_dpy); disp->Extensions.KHR_image_pixmap = EGL_TRUE; disp->Extensions.NOK_swap_region = EGL_TRUE; disp->Extensions.NOK_texture_from_pixmap = EGL_TRUE; disp->Extensions.NV_post_sub_buffer = EGL_TRUE; #ifdef HAVE_WAYLAND_PLATFORM disp->Extensions.WL_bind_wayland_display = EGL_TRUE; #endif if (dri2_dpy->conn) { if (!dri2_add_configs_for_visuals(dri2_dpy, disp)) goto cleanup_configs; } dri2_dpy->authenticate = dri2_x11_authenticate; /* we're supporting EGL 1.4 */ disp->VersionMajor = 1; disp->VersionMinor = 4; return EGL_TRUE; cleanup_configs: _eglCleanupDisplay(disp); dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen); cleanup_fd: close(dri2_dpy->fd); cleanup_driver: dlclose(dri2_dpy->driver); cleanup_conn: if (disp->PlatformDisplay == NULL) xcb_disconnect(dri2_dpy->conn); cleanup_dpy: free(dri2_dpy); return EGL_FALSE; }