1 #pragma once
2 /*
3 * This file is part of the libCEC(R) library.
4 *
5 * libCEC(R) is Copyright (C) 2011-2015 Pulse-Eight Limited. All rights reserved.
6 * libCEC(R) is an original work, containing original code.
7 *
8 * libCEC(R) is a trademark of Pulse-Eight Limited.
9 *
10 * This program is dual-licensed; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 *
24 *
25 * Alternatively, you can license this library under a commercial license,
26 * please contact Pulse-Eight Licensing for more information.
27 *
28 * For more information contact:
29 * Pulse-Eight Licensing <license@pulse-eight.com>
30 * http://www.pulse-eight.com/
31 * http://www.pulse-eight.net/
32 */
33
34 #include "cecc.h"
35
36 #include <stdio.h>
37 #if defined(_WIN32) || defined(_WIN64)
38 #include <windows.h>
39 #include <conio.h>
40 typedef HINSTANCE libcecc_lib_instance_t;
41 #else
42 #include <dlfcn.h>
43 typedef void* libcecc_lib_instance_t;
44 #ifndef CDECL
45 #define CDECL
46 #endif
47 #endif
48
49 static libcecc_lib_instance_t libcecc_load_library(const char* strLib);
50 static void libcecc_close_library(libcecc_lib_instance_t lib);
51 static void* libcecc_resolve(void* lib, const char* name);
52
53 #define _libcecc_resolve(lib, tar, name, method) \
54 do { \
55 tar = (method) libcecc_resolve(lib, name); \
56 if (tar == NULL) \
57 { \
58 libcecc_close_library(lib); \
59 return -1; \
60 } \
61 } while(0)
62
63 typedef struct {
64 libcec_connection_t connection;
65 libcecc_lib_instance_t lib_instance;
66 void (CDECL *destroy)(libcec_connection_t connection);
67 int (CDECL *open)(libcec_connection_t connection, const char* strPort, uint32_t iTimeout);
68 void (CDECL *close)(libcec_connection_t connection);
69 void (CDECL *clear_configuration)(CEC_NAMESPACE libcec_configuration* configuration);
70 int (CDECL *enable_callbacks)(libcec_connection_t connection, void* cbParam, CEC_NAMESPACE ICECCallbacks* callbacks);
71 int8_t (CDECL *find_adapters)(libcec_connection_t connection, CEC_NAMESPACE cec_adapter* deviceList, uint8_t iBufSize, const char* strDevicePath);
72 int (CDECL *ping_adapters)(libcec_connection_t connection);
73 int (CDECL *start_bootloader)(libcec_connection_t connection);
74 int (CDECL *power_on_devices)(libcec_connection_t connection, CEC_NAMESPACE cec_logical_address address);
75 int (CDECL *standby_devices)(libcec_connection_t connection, CEC_NAMESPACE cec_logical_address address);
76 int (CDECL *set_active_source)(libcec_connection_t connection, CEC_NAMESPACE cec_device_type type);
77 int (CDECL *set_deck_control_mode)(libcec_connection_t connection, CEC_NAMESPACE cec_deck_control_mode mode, int bSendUpdate);
78 int (CDECL *set_deck_info)(libcec_connection_t connection, CEC_NAMESPACE cec_deck_info info, int bSendUpdate);
79 int (CDECL *set_inactive_view)(libcec_connection_t connection);
80 int (CDECL *set_menu_state)(libcec_connection_t connection, CEC_NAMESPACE cec_menu_state state, int bSendUpdate);
81 int (CDECL *transmit)(libcec_connection_t connection, const CEC_NAMESPACE cec_command* data);
82 int (CDECL *set_logical_address)(libcec_connection_t connection, CEC_NAMESPACE cec_logical_address iLogicalAddress);
83 int (CDECL *set_physical_address)(libcec_connection_t connection, uint16_t iPhysicalAddress);
84 int (CDECL *set_osd_string)(libcec_connection_t connection, CEC_NAMESPACE cec_logical_address iLogicalAddress, CEC_NAMESPACE cec_display_control duration, const char* strMessage);
85 int (CDECL *switch_monitoring)(libcec_connection_t connection, int bEnable);
86 CEC_NAMESPACE cec_version (CDECL *get_device_cec_version)(libcec_connection_t connection, CEC_NAMESPACE cec_logical_address iLogicalAddress);
87 int (CDECL *get_device_menu_language)(libcec_connection_t connection, CEC_NAMESPACE cec_logical_address iLogicalAddress, CEC_NAMESPACE cec_menu_language language);
88 uint64_t (CDECL *get_device_vendor_id)(libcec_connection_t connection, CEC_NAMESPACE cec_logical_address iLogicalAddress);
89 uint16_t (CDECL *get_device_physical_address)(libcec_connection_t connection, CEC_NAMESPACE cec_logical_address iLogicalAddress);
90 CEC_NAMESPACE cec_logical_address (CDECL *get_active_source)(libcec_connection_t connection);
91 int (CDECL *is_active_source)(libcec_connection_t connection, CEC_NAMESPACE cec_logical_address iAddress);
92 CEC_NAMESPACE cec_power_status (CDECL *get_device_power_status)(libcec_connection_t connection, CEC_NAMESPACE cec_logical_address iLogicalAddress);
93 int (CDECL *poll_device)(libcec_connection_t connection, CEC_NAMESPACE cec_logical_address iLogicalAddress);
94 CEC_NAMESPACE cec_logical_addresses (CDECL *get_active_devices)(libcec_connection_t connection);
95 int (CDECL *is_active_device)(libcec_connection_t connection, CEC_NAMESPACE cec_logical_address address);
96 int (CDECL *is_active_device_type)(libcec_connection_t connection, CEC_NAMESPACE cec_device_type type);
97 int (CDECL *set_hdmi_port)(libcec_connection_t connection, CEC_NAMESPACE cec_logical_address baseDevice, uint8_t iPort);
98 int (CDECL *volume_up)(libcec_connection_t connection, int bSendRelease);
99 int (CDECL *volume_down)(libcec_connection_t connection, int bSendRelease);
100 int (CDECL *mute_audio)(libcec_connection_t connection, int bSendRelease);
101 int (CDECL *send_keypress)(libcec_connection_t connection, CEC_NAMESPACE cec_logical_address iDestination, CEC_NAMESPACE cec_user_control_code key, int bWait);
102 int (CDECL *send_key_release)(libcec_connection_t connection, CEC_NAMESPACE cec_logical_address iDestination, int bWait);
103 int (CDECL *get_device_osd_name)(libcec_connection_t connection, CEC_NAMESPACE cec_logical_address iAddress, CEC_NAMESPACE cec_osd_name name);
104 int (CDECL *set_stream_path_logical)(libcec_connection_t connection, CEC_NAMESPACE cec_logical_address iAddress);
105 int (CDECL *set_stream_path_physical)(libcec_connection_t connection, uint16_t iPhysicalAddress);
106 CEC_NAMESPACE cec_logical_addresses (CDECL *get_logical_addresses)(libcec_connection_t connection);
107 int (CDECL *get_current_configuration)(libcec_connection_t connection, CEC_NAMESPACE libcec_configuration* configuration);
108 int (CDECL *can_persist_configuration)(libcec_connection_t connection);
109 int (CDECL *persist_configuration)(libcec_connection_t connection, CEC_NAMESPACE libcec_configuration* configuration);
110 int (CDECL *set_configuration)(libcec_connection_t connection, const CEC_NAMESPACE libcec_configuration* configuration);
111 void (CDECL *rescan_devices)(libcec_connection_t connection);
112 int (CDECL *is_libcec_active_source)(libcec_connection_t connection);
113 int (CDECL *get_device_information)(libcec_connection_t connection, const char* strPort, CEC_NAMESPACE libcec_configuration* config, uint32_t iTimeoutMs);
114 const char* (CDECL *get_lib_info)(libcec_connection_t connection);
115 void (CDECL *init_video_standalone)(libcec_connection_t connection);
116 uint16_t (CDECL *get_adapter_vendor_id)(libcec_connection_t connection);
117 uint16_t (CDECL *get_adapter_product_id)(libcec_connection_t connection);
118 uint8_t (CDECL *audio_toggle_mute)(libcec_connection_t connection);
119 uint8_t (CDECL *audio_mute)(libcec_connection_t connection);
120 uint8_t (CDECL *audio_unmute)(libcec_connection_t connection);
121 uint8_t (CDECL *audio_get_status)(libcec_connection_t connection);
122 int8_t (CDECL *detect_adapters)(libcec_connection_t connection, CEC_NAMESPACE cec_adapter_descriptor* deviceList, uint8_t iBufSize, const char* strDevicePath, int bQuickScan);
123 void (CDECL *menu_state_to_string)(const CEC_NAMESPACE cec_menu_state state, char* buf, size_t bufsize);
124 void (CDECL *cec_version_to_string)(const CEC_NAMESPACE cec_version version, char* buf, size_t bufsize);
125 void (CDECL *power_status_to_string)(const CEC_NAMESPACE cec_power_status status, char* buf, size_t bufsize);
126 void (CDECL *logical_address_to_string)(const CEC_NAMESPACE cec_logical_address address, char* buf, size_t bufsize);
127 void (CDECL *deck_control_mode_to_string)(const CEC_NAMESPACE cec_deck_control_mode mode, char* buf, size_t bufsize);
128 void (CDECL *deck_status_to_string)(const CEC_NAMESPACE cec_deck_info status, char* buf, size_t bufsize);
129 void (CDECL *opcode_to_string)(const CEC_NAMESPACE cec_opcode opcode, char* buf, size_t bufsize);
130 void (CDECL *system_audio_status_to_string)(const CEC_NAMESPACE cec_system_audio_status mode, char* buf, size_t bufsize);
131 void (CDECL *audio_status_to_string)(const CEC_NAMESPACE cec_audio_status status, char* buf, size_t bufsize);
132 void (CDECL *vendor_id_to_string)(const CEC_NAMESPACE cec_vendor_id vendor, char* buf, size_t bufsize);
133 void (CDECL *user_control_key_to_string)(const CEC_NAMESPACE cec_user_control_code key, char* buf, size_t bufsize);
134 void (CDECL *adapter_type_to_string)(const CEC_NAMESPACE cec_adapter_type type, char* buf, size_t bufsize);
135 void (CDECL *version_to_string)(uint32_t version, char* buf, size_t bufsize);
136 } libcec_interface_t;
137
libcecc_resolve_all(void * lib,libcec_interface_t * iface)138 static int libcecc_resolve_all(void* lib, libcec_interface_t* iface)
139 {
140 if (!lib || !iface)
141 return -1;
142
143 _libcecc_resolve(lib, iface->destroy, "libcec_destroy", void(CDECL *)(libcec_connection_t));
144 _libcecc_resolve(lib, iface->open, "libcec_open", int(CDECL *)(libcec_connection_t, const char*, uint32_t));
145 _libcecc_resolve(lib, iface->close, "libcec_close", void(CDECL *)(libcec_connection_t));
146 _libcecc_resolve(lib, iface->clear_configuration, "libcec_clear_configuration", void(CDECL *)(CEC_NAMESPACE libcec_configuration*));
147 _libcecc_resolve(lib, iface->enable_callbacks, "libcec_enable_callbacks", int(CDECL *)(libcec_connection_t, void*, CEC_NAMESPACE ICECCallbacks*));
148 _libcecc_resolve(lib, iface->find_adapters, "libcec_find_adapters", int8_t(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_adapter*, uint8_t, const char*));
149 _libcecc_resolve(lib, iface->ping_adapters, "libcec_ping_adapters", int(CDECL *)(libcec_connection_t));
150 _libcecc_resolve(lib, iface->start_bootloader, "libcec_start_bootloader", int(CDECL *)(libcec_connection_t));
151 _libcecc_resolve(lib, iface->power_on_devices, "libcec_power_on_devices", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_logical_address));
152 _libcecc_resolve(lib, iface->standby_devices, "libcec_standby_devices", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_logical_address));
153 _libcecc_resolve(lib, iface->set_active_source, "libcec_set_active_source", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_device_type));
154 _libcecc_resolve(lib, iface->set_deck_control_mode, "libcec_set_deck_control_mode", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_deck_control_mode, int));
155 _libcecc_resolve(lib, iface->set_deck_info, "libcec_set_deck_info", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_deck_info, int));
156 _libcecc_resolve(lib, iface->set_inactive_view, "libcec_set_inactive_view", int(CDECL *)(libcec_connection_t));
157 _libcecc_resolve(lib, iface->set_menu_state, "libcec_set_menu_state", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_menu_state, int));
158 _libcecc_resolve(lib, iface->transmit, "libcec_transmit", int(CDECL *)(libcec_connection_t, const CEC_NAMESPACE cec_command*));
159 _libcecc_resolve(lib, iface->set_logical_address, "libcec_set_logical_address", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_logical_address));
160 _libcecc_resolve(lib, iface->set_physical_address, "libcec_set_physical_address", int(CDECL *)(libcec_connection_t, uint16_t));
161 _libcecc_resolve(lib, iface->set_osd_string, "libcec_set_osd_string", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_logical_address, CEC_NAMESPACE cec_display_control, const char*));
162 _libcecc_resolve(lib, iface->switch_monitoring, "libcec_switch_monitoring", int(CDECL *)(libcec_connection_t, int));
163 _libcecc_resolve(lib, iface->get_device_cec_version, "libcec_get_device_cec_version", CEC_NAMESPACE cec_version(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_logical_address));
164 _libcecc_resolve(lib, iface->get_device_menu_language, "libcec_get_device_menu_language", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_logical_address, CEC_NAMESPACE cec_menu_language));
165 _libcecc_resolve(lib, iface->get_device_vendor_id, "libcec_get_device_vendor_id", uint64_t(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_logical_address));
166 _libcecc_resolve(lib, iface->get_device_physical_address, "libcec_get_device_physical_address", uint16_t(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_logical_address));
167 _libcecc_resolve(lib, iface->get_active_source, "libcec_get_active_source", CEC_NAMESPACE cec_logical_address(CDECL *)(libcec_connection_t));
168 _libcecc_resolve(lib, iface->is_active_source, "libcec_is_active_source", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_logical_address));
169 _libcecc_resolve(lib, iface->get_device_power_status, "libcec_get_device_power_status", CEC_NAMESPACE cec_power_status(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_logical_address));
170 _libcecc_resolve(lib, iface->poll_device, "libcec_poll_device", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_logical_address));
171 _libcecc_resolve(lib, iface->get_active_devices, "libcec_get_active_devices", CEC_NAMESPACE cec_logical_addresses(CDECL *)(libcec_connection_t));
172 _libcecc_resolve(lib, iface->is_active_device, "libcec_is_active_device", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_logical_address));
173 _libcecc_resolve(lib, iface->is_active_device_type, "libcec_is_active_device_type", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_device_type));
174 _libcecc_resolve(lib, iface->set_hdmi_port, "libcec_set_hdmi_port", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_logical_address, uint8_t));
175 _libcecc_resolve(lib, iface->volume_up, "libcec_volume_up", int(CDECL *)(libcec_connection_t, int));
176 _libcecc_resolve(lib, iface->volume_down, "libcec_volume_down", int(CDECL *)(libcec_connection_t, int));
177 _libcecc_resolve(lib, iface->mute_audio, "libcec_mute_audio", int(CDECL *)(libcec_connection_t, int));
178 _libcecc_resolve(lib, iface->send_keypress, "libcec_send_keypress", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_logical_address, CEC_NAMESPACE cec_user_control_code, int));
179 _libcecc_resolve(lib, iface->send_key_release, "libcec_send_key_release", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_logical_address, int));
180 _libcecc_resolve(lib, iface->get_device_osd_name, "libcec_get_device_osd_name", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_logical_address, CEC_NAMESPACE cec_osd_name));
181 _libcecc_resolve(lib, iface->set_stream_path_logical, "libcec_set_stream_path_logical", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_logical_address));
182 _libcecc_resolve(lib, iface->set_stream_path_physical, "libcec_set_stream_path_physical", int(CDECL *)(libcec_connection_t, uint16_t));
183 _libcecc_resolve(lib, iface->get_logical_addresses, "libcec_get_logical_addresses", CEC_NAMESPACE cec_logical_addresses(CDECL *)(libcec_connection_t));
184 _libcecc_resolve(lib, iface->get_current_configuration, "libcec_get_current_configuration", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE libcec_configuration*));
185 _libcecc_resolve(lib, iface->can_persist_configuration, "libcec_can_persist_configuration", int(CDECL *)(libcec_connection_t));
186 _libcecc_resolve(lib, iface->persist_configuration, "libcec_persist_configuration", int(CDECL *)(libcec_connection_t, CEC_NAMESPACE libcec_configuration*));
187 _libcecc_resolve(lib, iface->set_configuration, "libcec_set_configuration", int(CDECL *)(libcec_connection_t, const CEC_NAMESPACE libcec_configuration*));
188 _libcecc_resolve(lib, iface->rescan_devices, "libcec_rescan_devices", void(CDECL *)(libcec_connection_t));
189 _libcecc_resolve(lib, iface->is_libcec_active_source, "libcec_is_libcec_active_source", int(CDECL *)(libcec_connection_t));
190 _libcecc_resolve(lib, iface->get_device_information, "libcec_get_device_information", int(CDECL *)(libcec_connection_t, const char*, CEC_NAMESPACE libcec_configuration*, uint32_t));
191 _libcecc_resolve(lib, iface->get_lib_info, "libcec_get_lib_info", const char*(CDECL *)(libcec_connection_t));
192 _libcecc_resolve(lib, iface->init_video_standalone, "libcec_init_video_standalone", void(CDECL *)(libcec_connection_t));
193 _libcecc_resolve(lib, iface->get_adapter_vendor_id, "libcec_get_adapter_vendor_id", uint16_t(CDECL *)(libcec_connection_t));
194 _libcecc_resolve(lib, iface->get_adapter_product_id, "libcec_get_adapter_product_id", uint16_t(CDECL *)(libcec_connection_t));
195 _libcecc_resolve(lib, iface->audio_toggle_mute, "libcec_audio_toggle_mute", uint8_t(CDECL *)(libcec_connection_t));
196 _libcecc_resolve(lib, iface->audio_mute, "libcec_audio_mute", uint8_t(CDECL *)(libcec_connection_t));
197 _libcecc_resolve(lib, iface->audio_unmute, "libcec_audio_unmute", uint8_t(CDECL *)(libcec_connection_t));
198 _libcecc_resolve(lib, iface->audio_get_status, "libcec_audio_get_status", uint8_t(CDECL *)(libcec_connection_t));
199 _libcecc_resolve(lib, iface->detect_adapters, "libcec_detect_adapters", int8_t(CDECL *)(libcec_connection_t, CEC_NAMESPACE cec_adapter_descriptor*, uint8_t, const char*, int));
200 _libcecc_resolve(lib, iface->menu_state_to_string, "libcec_menu_state_to_string", void(CDECL *)(const CEC_NAMESPACE cec_menu_state, char*, size_t));
201 _libcecc_resolve(lib, iface->cec_version_to_string, "libcec_cec_version_to_string", void(CDECL *)(const CEC_NAMESPACE cec_version, char*, size_t));
202 _libcecc_resolve(lib, iface->power_status_to_string, "libcec_power_status_to_string", void(CDECL *)(const CEC_NAMESPACE cec_power_status, char*, size_t));
203 _libcecc_resolve(lib, iface->logical_address_to_string, "libcec_logical_address_to_string", void(CDECL *)(const CEC_NAMESPACE cec_logical_address, char*, size_t));
204 _libcecc_resolve(lib, iface->deck_control_mode_to_string, "libcec_deck_control_mode_to_string", void(CDECL *)(const CEC_NAMESPACE cec_deck_control_mode, char*, size_t));
205 _libcecc_resolve(lib, iface->deck_status_to_string, "libcec_deck_status_to_string", void(CDECL *)(const CEC_NAMESPACE cec_deck_info, char*, size_t));
206 _libcecc_resolve(lib, iface->opcode_to_string, "libcec_opcode_to_string", void(CDECL *)(const CEC_NAMESPACE cec_opcode, char*, size_t));
207 _libcecc_resolve(lib, iface->system_audio_status_to_string, "libcec_system_audio_status_to_string", void(CDECL *)(const CEC_NAMESPACE cec_system_audio_status, char*, size_t));
208 _libcecc_resolve(lib, iface->audio_status_to_string, "libcec_audio_status_to_string", void(CDECL *)(const CEC_NAMESPACE cec_audio_status, char*, size_t));
209 _libcecc_resolve(lib, iface->vendor_id_to_string, "libcec_vendor_id_to_string", void(CDECL *)(const CEC_NAMESPACE cec_vendor_id, char*, size_t));
210 _libcecc_resolve(lib, iface->user_control_key_to_string, "libcec_user_control_key_to_string", void(CDECL *)(const CEC_NAMESPACE cec_user_control_code, char*, size_t));
211 _libcecc_resolve(lib, iface->adapter_type_to_string, "libcec_adapter_type_to_string", void(CDECL *)(const CEC_NAMESPACE cec_adapter_type, char*, size_t));
212 _libcecc_resolve(lib, iface->version_to_string, "libcec_version_to_string", void(CDECL *)(uint32_t, char*, size_t));
213
214 return 1;
215 }
216
libcecc_load_library(const char * strLib)217 static libcecc_lib_instance_t libcecc_load_library(const char* strLib)
218 {
219 libcecc_lib_instance_t lib;
220 #if defined(_WIN32) || defined(_WIN64)
221 lib = LoadLibrary(strLib ? strLib : "cec.dll");
222 if (lib == NULL)
223 printf("failed to load cec.dll\n");
224 #else
225 #if defined(__APPLE__)
226 lib = dlopen(strLib ? strLib : "libcec." CEC_LIB_VERSION_MAJOR_STR ".dylib", RTLD_LAZY);
227 #else
228 lib = dlopen(strLib ? strLib : "libcec.so." CEC_LIB_VERSION_MAJOR_STR, RTLD_LAZY);
229 #endif
230 if (lib == NULL)
231 printf("%s\n", dlerror());
232 #endif
233 return lib;
234 }
235
libcecc_close_library(libcecc_lib_instance_t lib)236 static void libcecc_close_library(libcecc_lib_instance_t lib)
237 {
238 #if defined(_WIN32) || defined(_WIN64)
239 FreeLibrary(lib);
240 #else
241 dlclose(lib);
242 #endif
243 }
244
libcecc_resolve(void * lib,const char * name)245 static void* libcecc_resolve(void* lib, const char* name)
246 {
247 #if defined(_WIN32) || defined(_WIN64)
248 return GetProcAddress(lib, name);
249 #else
250 return dlsym(lib, name);
251 #endif
252 }
253
libcecc_reset_configuration(CEC_NAMESPACE libcec_configuration * configuration)254 void libcecc_reset_configuration(CEC_NAMESPACE libcec_configuration* configuration)
255 {
256 void(CDECL * _clear_configuration)(CEC_NAMESPACE libcec_configuration*);
257 libcecc_lib_instance_t lib;
258
259 memset(configuration, 0, sizeof(CEC_NAMESPACE libcec_configuration));
260 lib = libcecc_load_library(NULL);
261 if (lib == NULL)
262 return;
263
264 _clear_configuration = (void(CDECL *)(CEC_NAMESPACE libcec_configuration*)) libcecc_resolve(lib, "libcec_clear_configuration");
265 if (_clear_configuration)
266 _clear_configuration(configuration);
267
268 libcecc_close_library(lib);
269 }
270
271 /*!
272 * @brief Create a new libCEC instance.
273 * @param configuration The configuration to pass to libCEC
274 * @param strLib The name of and/or path to libCEC
275 * @return 1 when loaded, 0 if libCEC failed to initialise, -1 if methods failed to be resolved
276 */
libcecc_initialise(CEC_NAMESPACE libcec_configuration * configuration,libcec_interface_t * iface,const char * strLib)277 int libcecc_initialise(CEC_NAMESPACE libcec_configuration* configuration, libcec_interface_t* iface, const char* strLib)
278 {
279 void* (CDECL *_cec_initialise)(CEC_NAMESPACE libcec_configuration*);
280
281 libcecc_lib_instance_t lib;
282 lib = libcecc_load_library(strLib);
283 if (lib == NULL)
284 return -1;
285
286 _libcecc_resolve(lib, _cec_initialise, "libcec_initialise", void* (CDECL *)(CEC_NAMESPACE libcec_configuration*));
287
288 iface->lib_instance = lib;
289 iface->connection = _cec_initialise(configuration);
290
291 return iface->connection ?
292 libcecc_resolve_all(lib, iface) :
293 0;
294 }
295
296 /*!
297 * @brief Destroy an instance of libCEC.
298 * @param device The instance to destroy.
299 */
libcecc_destroy(libcec_interface_t * iface)300 void libcecc_destroy(libcec_interface_t* iface)
301 {
302 if (iface->destroy)
303 iface->destroy(iface->connection);
304 libcecc_close_library(iface->lib_instance);
305 memset(iface, 0, sizeof(libcec_interface_t));
306 }
307