client/tdm_client.c

   1 /**************************************************************************
   2
   3 libtdm
   4
   5 Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
   6
   7 Contact: Eunchul Kim <chulspro.kim@samsung.com>,
   8          JinYoung Jeon <jy0.jeon@samsung.com>,
   9          Taeheon Kim <th908.kim@samsung.com>,
  10          YoungJun Cho <yj44.cho@samsung.com>,
  11          SooChan Lim <sc1.lim@samsung.com>,
  12          Boram Park <sc1.lim@samsung.com>
  13
  14 Permission is hereby granted, free of charge, to any person obtaining a
  15 copy of this software and associated documentation files (the
  16 "Software"), to deal in the Software without restriction, including
  17 without limitation the rights to use, copy, modify, merge, publish,
  18 distribute, sub license, and/or sell copies of the Software, and to
  19 permit persons to whom the Software is furnished to do so, subject to
  20 the following conditions:
  21
  22 The above copyright notice and this permission notice (including the
  23 next paragraph) shall be included in all copies or substantial portions
  24 of the Software.
  25
  26 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  27 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  29 IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  30 ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  31 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  32 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  33
  34 **************************************************************************/
  35
  36 #ifdef HAVE_CONFIG_H
  37 #include "config.h"
  38 #endif
  39
  40 #include <stdio.h>
  41 #include <string.h>
  42 #include <stdlib.h>
  43 #include <time.h>
  44
  45 #include "tdm_client.h"
  46 #include "tdm_log.h"
  47 #include "tdm_macro.h"
  48 #include "tdm_list.h"
  49 #include "tdm-client-protocol.h"
  50
  51 int tdm_debug;
  52
  53 typedef struct _tdm_private_client {
  54         struct wl_display *display;
  55         struct wl_registry *registry;
  56         struct wl_tdm *tdm;
  57
  58         struct list_head vblank_list;
  59 } tdm_private_client;
  60
  61 typedef struct _tdm_client_vblank_info {
  62         struct list_head link;
  63         struct wl_tdm_vblank *vblank;
  64         tdm_client_vblank_handler func;
  65         unsigned int req_sec;
  66         unsigned int req_usec;
  67         void *user_data;
  68 } tdm_client_vblank_info;
  69
  70 static void
  71 _tdm_client_cb_global(void *data, struct wl_registry *registry,
  72                       uint32_t name, const char *interface,
  73                       uint32_t version)
  74 {
  75         tdm_private_client *private_client = data;
  76
  77         if (strcmp(interface, "wl_tdm") == 0) {
  78                 private_client->tdm =
  79                         wl_registry_bind(registry, name, &wl_tdm_interface, version);
  80                 TDM_RETURN_IF_FAIL(private_client->tdm != NULL);
  81
  82                 wl_display_flush(private_client->display);
  83         }
  84 }
  85
  86 static void
  87 _tdm_client_cb_global_remove(void *data, struct wl_registry *registry, uint32_t name)
  88 {
  89 }
  90
  91 static const struct wl_registry_listener tdm_client_registry_listener =
  92 {
  93     _tdm_client_cb_global,
  94     _tdm_client_cb_global_remove
  95 };
  96
  97 tdm_client*
  98 tdm_client_create(tdm_client_error *error)
  99 {
 100         tdm_private_client *private_client;
 101         const char *debug;
 102
 103         debug = getenv("TDM_DEBUG");
 104         if (debug && (strstr(debug, "1")))
 105                 tdm_debug = 1;
 106
 107         private_client = calloc(1, sizeof *private_client);
 108         if (!private_client) {
 109                 TDM_ERR("alloc failed");
 110                 if (error)
 111                         *error = TDM_CLIENT_ERROR_OUT_OF_MEMORY;
 112                 return NULL;
 113         }
 114
 115         private_client->display = wl_display_connect("tdm-socket");
 116         TDM_GOTO_IF_FAIL(private_client->display != NULL, create_failed);
 117
 118         private_client->registry = wl_display_get_registry(private_client->display);
 119         TDM_GOTO_IF_FAIL(private_client->registry != NULL, create_failed);
 120
 121         wl_registry_add_listener(private_client->registry,
 122                                  &tdm_client_registry_listener, private_client);
 123         wl_display_roundtrip(private_client->display);
 124
 125         /* check global objects */
 126         TDM_GOTO_IF_FAIL(private_client->tdm != NULL, create_failed);
 127
 128         LIST_INITHEAD(&private_client->vblank_list);
 129
 130         if (error)
 131                 *error = TDM_CLIENT_ERROR_NONE;
 132
 133         return (tdm_client*)private_client;
 134 create_failed:
 135         tdm_client_destroy((tdm_client*)private_client);
 136         if (error)
 137                 *error = TDM_CLIENT_ERROR_OPERATION_FAILED;
 138         return NULL;
 139 }
 140
 141 void
 142 tdm_client_destroy(tdm_client *client)
 143 {
 144         tdm_private_client *private_client = (tdm_private_client*)client;
 145         tdm_client_vblank_info *v = NULL, *vv = NULL;
 146
 147         if (!private_client)
 148                 return;
 149
 150         LIST_FOR_EACH_ENTRY_SAFE(v, vv, &private_client->vblank_list, link) {
 151                 LIST_DEL(&v->link);
 152                 wl_tdm_vblank_destroy(v->vblank);
 153                 free(v);
 154         }
 155
 156         if (private_client->tdm)
 157                 wl_tdm_destroy(private_client->tdm);
 158         if (private_client->registry)
 159                 wl_registry_destroy(private_client->registry);
 160         if (private_client->display)
 161                 wl_display_disconnect(private_client->display);
 162
 163         free(private_client);
 164 }
 165
 166 tdm_client_error
 167 tdm_client_get_fd(tdm_client *client, int *fd)
 168 {
 169         tdm_private_client *private_client;
 170
 171         TDM_RETURN_VAL_IF_FAIL(client != NULL, TDM_CLIENT_ERROR_INVALID_PARAMETER);
 172         TDM_RETURN_VAL_IF_FAIL(fd != NULL, TDM_CLIENT_ERROR_INVALID_PARAMETER);
 173
 174         private_client = (tdm_private_client*)client;
 175
 176         *fd = wl_display_get_fd(private_client->display);
 177         if (*fd < 0)
 178                 return TDM_CLIENT_ERROR_OPERATION_FAILED;
 179
 180         return TDM_CLIENT_ERROR_NONE;
 181 }
 182
 183 tdm_client_error
 184 tdm_client_handle_events(tdm_client *client)
 185 {
 186         tdm_private_client *private_client;
 187
 188         TDM_RETURN_VAL_IF_FAIL(client != NULL, TDM_CLIENT_ERROR_INVALID_PARAMETER);
 189
 190         private_client = (tdm_private_client*)client;
 191
 192         wl_display_dispatch(private_client->display);
 193
 194         return TDM_CLIENT_ERROR_NONE;
 195 }
 196
 197 static void
 198 _tdm_client_cb_vblank_done(void *data, struct wl_tdm_vblank *vblank,
 199                            uint32_t sequence, uint32_t tv_sec, uint32_t tv_usec)
 200 {
 201         tdm_client_vblank_info *vblank_info = (tdm_client_vblank_info*)data;
 202
 203         TDM_RETURN_IF_FAIL(vblank_info != NULL);
 204
 205         if (vblank_info->vblank != vblank)
 206                 TDM_NEVER_GET_HERE();
 207
 208         TDM_DBG("vblank_info(%p) wl_tbm_vblank@%d", vblank_info, wl_proxy_get_id((struct wl_proxy *)vblank));
 209
 210         if (vblank_info->func) {
 211                 vblank_info->func(sequence, tv_sec, tv_usec, vblank_info->user_data);
 212         }
 213
 214         LIST_DEL(&vblank_info->link);
 215         free(vblank_info);
 216 }
 217
 218 static const struct wl_tdm_vblank_listener tdm_client_vblank_listener = {
 219         _tdm_client_cb_vblank_done,
 220 };
 221
 222 tdm_client_error
 223 tdm_client_wait_vblank(tdm_client *client, char *name, int interval, int sync,
 224                        tdm_client_vblank_handler func, void *user_data)
 225 {
 226         tdm_private_client *private_client = (tdm_private_client*)client;
 227         tdm_client_vblank_info *vblank_info;
 228         struct timespec tp;
 229
 230         TDM_RETURN_VAL_IF_FAIL(name != NULL, TDM_CLIENT_ERROR_INVALID_PARAMETER);
 231         TDM_RETURN_VAL_IF_FAIL(interval > 0, TDM_CLIENT_ERROR_INVALID_PARAMETER);
 232         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_CLIENT_ERROR_INVALID_PARAMETER);
 233         TDM_RETURN_VAL_IF_FAIL(private_client != NULL, TDM_CLIENT_ERROR_INVALID_PARAMETER);
 234         TDM_RETURN_VAL_IF_FAIL(private_client->tdm != NULL, TDM_CLIENT_ERROR_INVALID_PARAMETER);
 235
 236         vblank_info = calloc(1, sizeof *vblank_info);
 237         if (!vblank_info) {
 238                 TDM_ERR("alloc failed");
 239                 return TDM_CLIENT_ERROR_OUT_OF_MEMORY;
 240         }
 241
 242         clock_gettime(CLOCK_MONOTONIC, &tp);
 243
 244         vblank_info->req_sec = (unsigned int)tp.tv_sec;
 245         vblank_info->req_usec = (unsigned int)(tp.tv_nsec/1000L);
 246
 247         vblank_info->vblank =
 248                 wl_tdm_wait_vblank(private_client->tdm, name, interval,
 249                                    vblank_info->req_sec, vblank_info->req_usec);
 250         if (!vblank_info->vblank) {
 251                 TDM_ERR("couldn't create vblank resource");
 252                 free(vblank_info);
 253                 return TDM_CLIENT_ERROR_OUT_OF_MEMORY;
 254         }
 255
 256         TDM_DBG("vblank_info(%p) wl_tbm_vblank@%d", vblank_info, wl_proxy_get_id((struct wl_proxy *)vblank_info->vblank));
 257
 258         wl_tdm_vblank_add_listener(vblank_info->vblank,
 259                                    &tdm_client_vblank_listener, vblank_info);
 260
 261         vblank_info->func = func;
 262         vblank_info->user_data = user_data;
 263         LIST_ADDTAIL(&vblank_info->link, &private_client->vblank_list);
 264
 265         if (sync)
 266                 wl_display_roundtrip(private_client->display);
 267         else
 268                 wl_display_flush(private_client->display);
 269
 270         return TDM_CLIENT_ERROR_NONE;
 271 }