| 1 | /* |
| 2 | * This file is part of the libCEC(R) library. |
| 3 | * |
| 4 | * libCEC(R) is Copyright (C) 2011-2012 Pulse-Eight Limited. All rights reserved. |
| 5 | * libCEC(R) is an original work, containing original code. |
| 6 | * |
| 7 | * libCEC(R) is a trademark of Pulse-Eight Limited. |
| 8 | * |
| 9 | * This program is dual-licensed; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 22 | * |
| 23 | * |
| 24 | * Alternatively, you can license this library under a commercial license, |
| 25 | * please contact Pulse-Eight Licensing for more information. |
| 26 | * |
| 27 | * For more information contact: |
| 28 | * Pulse-Eight Licensing <license@pulse-eight.com> |
| 29 | * http://www.pulse-eight.com/ |
| 30 | * http://www.pulse-eight.net/ |
| 31 | */ |
| 32 | |
| 33 | #include "adl-edid.h" |
| 34 | |
| 35 | // for dlsym and friends |
| 36 | #if defined(__WINDOWS__) |
| 37 | #include "../windows/dlfcn-win32.h" |
| 38 | #endif |
| 39 | |
| 40 | using namespace PLATFORM; |
| 41 | |
| 42 | CADLEdidParser::CADLEdidParser(void) : |
| 43 | m_bOpen(false), |
| 44 | m_handle(NULL) |
| 45 | { |
| 46 | Initialise(); |
| 47 | } |
| 48 | |
| 49 | CADLEdidParser::~CADLEdidParser(void) |
| 50 | { |
| 51 | CloseLibrary(); |
| 52 | } |
| 53 | |
| 54 | bool CADLEdidParser::OpenLibrary(void) |
| 55 | { |
| 56 | CloseLibrary(); |
| 57 | |
| 58 | #if !defined(__WINDOWS__) |
| 59 | m_handle = dlopen("libatiadlxx.so", RTLD_LAZY|RTLD_GLOBAL); |
| 60 | #else |
| 61 | m_handle = LoadLibrary("atiadlxx.dll"); |
| 62 | // try 32 bit |
| 63 | if (!m_handle) |
| 64 | m_handle = LoadLibrary("atiadlxy.dll"); |
| 65 | #endif |
| 66 | |
| 67 | return m_handle != NULL; |
| 68 | } |
| 69 | |
| 70 | void CADLEdidParser::CloseLibrary(void) |
| 71 | { |
| 72 | if (LibOpen()) |
| 73 | ADL_Main_Control_Destroy(); |
| 74 | |
| 75 | if (m_handle) |
| 76 | dlclose(m_handle); |
| 77 | m_handle = NULL; |
| 78 | } |
| 79 | |
| 80 | void *__stdcall ADL_AllocMemory(int iSize) |
| 81 | { |
| 82 | void* lpBuffer = malloc(iSize); |
| 83 | return lpBuffer; |
| 84 | } |
| 85 | |
| 86 | void CADLEdidParser::Initialise(void) |
| 87 | { |
| 88 | if (OpenLibrary()) |
| 89 | { |
| 90 | // dlsym the methods we need |
| 91 | ADL_Main_Control_Create = (ADL_MAIN_CONTROL_CREATE) dlsym(m_handle, "ADL_Main_Control_Create"); |
| 92 | ADL_Main_Control_Destroy = (ADL_MAIN_CONTROL_DESTROY) dlsym(m_handle, "ADL_Main_Control_Destroy"); |
| 93 | ADL_Adapter_NumberOfAdapters_Get = (ADL_ADAPTER_NUMBEROFADAPTERS_GET) dlsym(m_handle, "ADL_Adapter_NumberOfAdapters_Get"); |
| 94 | ADL_Adapter_AdapterInfo_Get = (ADL_ADAPTER_ADAPTERINFO_GET) dlsym(m_handle, "ADL_Adapter_AdapterInfo_Get"); |
| 95 | ADL_Display_DisplayInfo_Get = (ADL_DISPLAY_DISPLAYINFO_GET) dlsym(m_handle, "ADL_Display_DisplayInfo_Get"); |
| 96 | ADL_Display_EdidData_Get = (ADL_DISPLAY_EDIDDATA_GET) dlsym(m_handle, "ADL_Display_EdidData_Get"); |
| 97 | |
| 98 | // check whether they could all be resolved |
| 99 | if (ADL_Main_Control_Create && |
| 100 | ADL_Main_Control_Destroy && |
| 101 | ADL_Adapter_NumberOfAdapters_Get && |
| 102 | ADL_Adapter_AdapterInfo_Get && |
| 103 | ADL_Display_DisplayInfo_Get && |
| 104 | ADL_Display_EdidData_Get) |
| 105 | { |
| 106 | // and try to initialise it |
| 107 | m_bOpen = (ADL_OK == ADL_Main_Control_Create(ADL_AllocMemory, 1)); |
| 108 | } |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | int CADLEdidParser::GetNumAdapters(void) |
| 113 | { |
| 114 | int iNumAdapters(0); |
| 115 | |
| 116 | if (!LibOpen() || ADL_OK != ADL_Adapter_NumberOfAdapters_Get(&iNumAdapters)) |
| 117 | iNumAdapters = 0; |
| 118 | |
| 119 | return iNumAdapters; |
| 120 | } |
| 121 | |
| 122 | LPAdapterInfo CADLEdidParser::GetAdapterInfo(int iNumAdapters) |
| 123 | { |
| 124 | // validate input |
| 125 | if (iNumAdapters <= 0) |
| 126 | return NULL; |
| 127 | |
| 128 | LPAdapterInfo adapterInfo = (LPAdapterInfo)malloc(sizeof(AdapterInfo) * iNumAdapters); |
| 129 | memset(adapterInfo, 0, sizeof(AdapterInfo) * iNumAdapters); |
| 130 | |
| 131 | // get the info |
| 132 | ADL_Adapter_AdapterInfo_Get(adapterInfo, sizeof(AdapterInfo) * iNumAdapters); |
| 133 | |
| 134 | return adapterInfo; |
| 135 | } |
| 136 | |
| 137 | bool CADLEdidParser::GetAdapterEDID(int iAdapterIndex, int iDisplayIndex, ADLDisplayEDIDData *data) |
| 138 | { |
| 139 | // validate input |
| 140 | if (iAdapterIndex < 0 || iDisplayIndex < 0) |
| 141 | return false; |
| 142 | |
| 143 | memset(data, 0, sizeof(ADLDisplayEDIDData)); |
| 144 | data->iSize = sizeof(ADLDisplayEDIDData); |
| 145 | data->iBlockIndex = 1; |
| 146 | |
| 147 | return (ADL_Display_EdidData_Get(iAdapterIndex, iDisplayIndex, data) == ADL_OK); |
| 148 | } |
| 149 | |
| 150 | uint16_t CADLEdidParser::GetPhysicalAddress(void) |
| 151 | { |
| 152 | uint16_t iPA(0); |
| 153 | |
| 154 | // get the number of adapters |
| 155 | int iNumAdapters = GetNumAdapters(); |
| 156 | if (iNumAdapters <= 0) |
| 157 | return 0; |
| 158 | |
| 159 | // get the adapter info |
| 160 | LPAdapterInfo adapterInfo = GetAdapterInfo(iNumAdapters); |
| 161 | if (!adapterInfo) |
| 162 | return 0; |
| 163 | |
| 164 | // iterate over it |
| 165 | for (int iAdapterPtr = 0; iAdapterPtr < iNumAdapters; iAdapterPtr++) |
| 166 | { |
| 167 | int iNumDisplays(-1); |
| 168 | LPADLDisplayInfo displayInfo(NULL); |
| 169 | int iAdapterIndex = adapterInfo[iAdapterPtr].iAdapterIndex; |
| 170 | |
| 171 | // get the display info |
| 172 | if (ADL_OK != ADL_Display_DisplayInfo_Get(iAdapterIndex, &iNumDisplays, &displayInfo, 0)) |
| 173 | continue; |
| 174 | |
| 175 | // iterate over it |
| 176 | for (int iDisplayPtr = 0; iDisplayPtr < iNumDisplays; iDisplayPtr++) |
| 177 | { |
| 178 | // check whether the display is connected |
| 179 | if ((displayInfo[iDisplayPtr].iDisplayInfoValue & ADL_DISPLAY_CONNECTED) != ADL_DISPLAY_CONNECTED) |
| 180 | continue; |
| 181 | |
| 182 | int iDisplayIndex = displayInfo[iDisplayPtr].displayID.iDisplayLogicalIndex; |
| 183 | |
| 184 | // try to get the EDID |
| 185 | ADLDisplayEDIDData edidData; |
| 186 | if (GetAdapterEDID(iAdapterIndex, iDisplayIndex, &edidData)) |
| 187 | { |
| 188 | // try to get the PA from the EDID |
| 189 | iPA = CEDIDParser::GetPhysicalAddressFromEDID(edidData.cEDIDData, edidData.iEDIDSize); |
| 190 | |
| 191 | // found it |
| 192 | if (iPA != 0) |
| 193 | break; |
| 194 | } |
| 195 | } |
| 196 | |
| 197 | free(displayInfo); |
| 198 | } |
| 199 | |
| 200 | free(adapterInfo); |
| 201 | |
| 202 | return iPA; |
| 203 | } |