Index: uspace/lib/display/src/disp_srv.c =================================================================== --- uspace/lib/display/src/disp_srv.c (revision c8cf261a450bf22fa6cc6e9872a1f07f9e7dccda) +++ uspace/lib/display/src/disp_srv.c (revision c8cf261a450bf22fa6cc6e9872a1f07f9e7dccda) @@ -0,0 +1,104 @@ +/* + * Copyright (c) 2019 Jiri Svoboda + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** @addtogroup libc + * @{ + */ +/** + * @file + * @brief Display protocol server stub + */ + +#include +#include +#include +#include +#include + +static void display_window_create_srv(display_srv_t *srv, ipc_call_t *icall) +{ + sysarg_t wnd_id; + errno_t rc; + + if (srv->ops->window_create == NULL) { + async_answer_0(icall, ENOTSUP); + return; + } + + rc = srv->ops->window_create(srv->arg, &wnd_id); + async_answer_1(icall, rc, wnd_id); +} + +static void display_window_destroy_srv(display_srv_t *srv, ipc_call_t *icall) +{ + sysarg_t wnd_id; + errno_t rc; + + wnd_id = ipc_get_arg1(icall); + + if (srv->ops->window_create == NULL) { + async_answer_0(icall, ENOTSUP); + return; + } + + rc = srv->ops->window_destroy(srv->arg, wnd_id); + async_answer_0(icall, rc); +} + +void display_conn(ipc_call_t *icall, display_srv_t *srv) +{ + /* Accept the connection */ + async_accept_0(icall); + + while (true) { + ipc_call_t call; + + async_get_call(&call); + sysarg_t method = ipc_get_imethod(&call); + + if (!method) { + /* The other side has hung up */ + async_answer_0(&call, EOK); + break; + } + + switch (method) { + case DISPLAY_WINDOW_CREATE: + display_window_create_srv(srv, &call); + break; + case DISPLAY_WINDOW_DESTROY: + display_window_destroy_srv(srv, &call); + break; + default: + async_answer_0(&call, ENOTSUP); + } + } +} + +/** @} + */ Index: uspace/lib/display/src/display.c =================================================================== --- uspace/lib/display/src/display.c (revision c8cf261a450bf22fa6cc6e9872a1f07f9e7dccda) +++ uspace/lib/display/src/display.c (revision c8cf261a450bf22fa6cc6e9872a1f07f9e7dccda) @@ -0,0 +1,169 @@ +/* + * Copyright (c) 2019 Jiri Svoboda + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +/** Open display service. + * + * @param dsname Display service name or @c NULL to use default display + * @param rdisplay Place to store pointer to display session + * @return EOK on success or an error code + */ +errno_t display_open(const char *dsname, display_t **rdisplay) +{ + service_id_t display_svc; + display_t *display; + errno_t rc; + + display = calloc(1, sizeof(display_t)); + if (display == NULL) + return ENOMEM; + + if (dsname == NULL) + dsname = SERVICE_NAME_DISPLAY; + + rc = loc_service_get_id(dsname, &display_svc, IPC_FLAG_BLOCKING); + if (rc != EOK) { + free(display); + return ENOENT; + } + + display->sess = loc_service_connect(display_svc, INTERFACE_DISPLAY, + IPC_FLAG_BLOCKING); + if (display->sess == NULL) { + free(display); + return ENOENT; + } + + *rdisplay = display; + return EOK; +} + +/** Close display service. + * + * @param display Display session + */ +void display_close(display_t *display) +{ + async_hangup(display->sess); + free(display); +} + +/** Create a display window. + * + * @param display Display + * @param rwindow Place to store pointer to new window + * @return EOK on success or an error code + */ +errno_t display_window_create(display_t *display, display_window_t **rwindow) +{ + display_window_t *window; + async_exch_t *exch; + sysarg_t wnd_id; + errno_t rc; + + window = calloc(1, sizeof(display_window_t)); + if (window == NULL) + return ENOMEM; + + exch = async_exchange_begin(display->sess); + rc = async_req_0_1(exch, DISPLAY_WINDOW_CREATE, &wnd_id); + + async_exchange_end(exch); + + if (rc != EOK) { + free(window); + return rc; + } + + window->display = display; + window->id = wnd_id; + *rwindow = window; + return EOK; +} + +/** Destroy display window. + * + * @param window Window + * @return EOK on success or an error code. In both cases @a window must + * not be accessed anymore + */ +errno_t display_window_destroy(display_window_t *window) +{ + async_exch_t *exch; + errno_t rc; + + exch = async_exchange_begin(window->display->sess); + rc = async_req_1_0(exch, DISPLAY_WINDOW_DESTROY, window->id); + + async_exchange_end(exch); + + free(window); + return rc; +} + +/** Create graphics context for drawing into a window. + * + * @param window Window + * @param rgc Place to store pointer to new graphics context + */ +errno_t display_window_get_gc(display_window_t *window, gfx_context_t **rgc) +{ + async_sess_t *sess; + async_exch_t *exch; + ipc_gc_t *gc; + errno_t rc; + + exch = async_exchange_begin(window->display->sess); + sess = async_connect_me_to(exch, INTERFACE_GC, 0, window->id); + if (sess == NULL) { + async_exchange_end(exch); + return EIO; + } + + async_exchange_end(exch); + + rc = ipc_gc_create(sess, &gc); + if (rc != EOK) { + async_hangup(sess); + return ENOMEM; + } + + *rgc = ipc_gc_get_ctx(gc); + return EOK; +} + +/** @} + */