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      1 /*
      2  * Copyright (C) 2010 Splitted-Desktop Systems. All Rights Reserved.
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the
      6  * "Software"), to deal in the Software without restriction, including
      7  * without limitation the rights to use, copy, modify, merge, publish,
      8  * distribute, sub license, and/or sell copies of the Software, and to
      9  * permit persons to whom the Software is furnished to do so, subject to
     10  * the following conditions:
     11  *
     12  * The above copyright notice and this permission notice (including the
     13  * next paragraph) shall be included in all copies or substantial portions
     14  * of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
     17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
     19  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
     20  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
     21  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
     22  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     23  */
     24 
     25 #include <stdio.h>
     26 #include <stdlib.h>
     27 #include <string.h>
     28 #include <dlfcn.h>
     29 #include <X11/Xlib.h>
     30 
     31 #define ADL_OK 0
     32 #define ADL_MAX_PATH 256
     33 
     34 /*
     35  * Based on public AMD Display Library (ADL) SDK:
     36  * <http://developer.amd.com/gpu/adlsdk/Pages/default.aspx>
     37  */
     38 typedef struct AdapterInfo {
     39     int iSize;
     40     int iAdapterIndex;
     41     char strUDID[ADL_MAX_PATH];
     42     int iBusNumber;
     43     int iDeviceNumber;
     44     int iFunctionNumber;
     45     int iVendorID;
     46     char strAdapterName[ADL_MAX_PATH];
     47     char strDisplayName[ADL_MAX_PATH];
     48     int iPresent;
     49     int iXScreenNum;
     50     int iDrvIndex;
     51     char strXScreenConfigName[ADL_MAX_PATH];
     52 } AdapterInfo, *LPAdapterInfo;
     53 
     54 typedef struct XScreenInfo {
     55     int iXScreenNum;
     56     char strXScreenConfigName[ADL_MAX_PATH];
     57 } XScreenInfo, *LPXScreenInfo;
     58 
     59 typedef void *(*ADL_MAIN_MALLOC_CALLBACK)(int);
     60 typedef int (*ADL_MAIN_CONTROL_CREATE)(ADL_MAIN_MALLOC_CALLBACK, int);
     61 typedef int (*ADL_MAIN_CONTROL_DESTROY)(void);
     62 typedef int (*ADL_ADAPTER_NUMBEROFADAPTERS_GET)(int *);
     63 typedef int (*ADL_ADAPTER_ADAPTERINFO_GET)(LPAdapterInfo, int);
     64 typedef int (*ADL_ADAPTER_XSCREENINFO_GET)(LPXScreenInfo, int);
     65 
     66 static void *ADL_Main_Memory_Alloc(int iSize)
     67 {
     68     return malloc(iSize);
     69 }
     70 
     71 static void ADL_Main_Memory_Free(void *arg)
     72 {
     73     void ** const lpBuffer = arg;
     74 
     75     if (lpBuffer && *lpBuffer) {
     76         free(*lpBuffer);
     77         *lpBuffer = NULL;
     78     }
     79 }
     80 
     81 static int get_display_name_length(const char *name)
     82 {
     83     const char *m;
     84 
     85     if (!name)
     86         return 0;
     87 
     88     /* Strip out screen number */
     89     m = strchr(name, ':');
     90     if (m) {
     91         m = strchr(m, '.');
     92         if (m)
     93             return m - name;
     94     }
     95     return strlen(name);
     96 }
     97 
     98 static int match_display_name(Display *x11_dpy, const char *display_name)
     99 {
    100     Display *test_dpy;
    101     char *test_dpy_name, *x11_dpy_name;
    102     int test_dpy_namelen, x11_dpy_namelen;
    103     int m;
    104 
    105     test_dpy = XOpenDisplay(display_name);
    106     if (!test_dpy)
    107         return 0;
    108 
    109     test_dpy_name    = XDisplayString(test_dpy);
    110     test_dpy_namelen = get_display_name_length(test_dpy_name);
    111     x11_dpy_name     = XDisplayString(x11_dpy);
    112     x11_dpy_namelen  = get_display_name_length(x11_dpy_name);
    113 
    114     m = (test_dpy_namelen == x11_dpy_namelen &&
    115          (test_dpy_namelen == 0 ||
    116           (test_dpy_namelen > 0 &&
    117            strncmp(test_dpy_name, x11_dpy_name, test_dpy_namelen) == 0)));
    118 
    119     XCloseDisplay(test_dpy);
    120     return m;
    121 }
    122 
    123 Bool VA_FGLRXGetClientDriverName( Display *dpy, int screen,
    124     int *ddxDriverMajorVersion, int *ddxDriverMinorVersion,
    125     int *ddxDriverPatchVersion, char **clientDriverName )
    126 {
    127     ADL_MAIN_CONTROL_CREATE          ADL_Main_Control_Create;
    128     ADL_MAIN_CONTROL_DESTROY         ADL_Main_Control_Destroy;
    129     ADL_ADAPTER_NUMBEROFADAPTERS_GET ADL_Adapter_NumberOfAdapters_Get;
    130     ADL_ADAPTER_ADAPTERINFO_GET      ADL_Adapter_AdapterInfo_Get;
    131     ADL_ADAPTER_XSCREENINFO_GET      ADL_Adapter_XScreenInfo_Get;
    132 
    133     LPAdapterInfo lpAdapterInfo = NULL;
    134     LPXScreenInfo lpXScreenInfo = NULL;
    135     void *libadl_handle = NULL;
    136     Bool success = False;
    137     int is_adl_initialized = 0;
    138     int i, num_adapters, lpAdapterInfo_size, lpXScreenInfo_size;
    139 
    140     if (ddxDriverMajorVersion)
    141         *ddxDriverMajorVersion = 0;
    142     if (ddxDriverMinorVersion)
    143         *ddxDriverMinorVersion = 0;
    144     if (ddxDriverPatchVersion)
    145         *ddxDriverPatchVersion = 0;
    146     if (clientDriverName)
    147         *clientDriverName = NULL;
    148 
    149     libadl_handle = dlopen("libatiadlxx.so", RTLD_LAZY|RTLD_GLOBAL);
    150     if (!libadl_handle)
    151         goto end;
    152 
    153     dlerror();
    154     ADL_Main_Control_Create = (ADL_MAIN_CONTROL_CREATE)
    155         dlsym(libadl_handle,"ADL_Main_Control_Create");
    156     if (dlerror() || !ADL_Main_Control_Create)
    157         goto end;
    158 
    159     ADL_Main_Control_Destroy = (ADL_MAIN_CONTROL_DESTROY)
    160         dlsym(libadl_handle,"ADL_Main_Control_Destroy");
    161     if (dlerror() || !ADL_Main_Control_Destroy)
    162         goto end;
    163 
    164     ADL_Adapter_NumberOfAdapters_Get = (ADL_ADAPTER_NUMBEROFADAPTERS_GET)
    165         dlsym(libadl_handle,"ADL_Adapter_NumberOfAdapters_Get");
    166     if (dlerror() || !ADL_Adapter_NumberOfAdapters_Get)
    167         goto end;
    168 
    169     ADL_Adapter_AdapterInfo_Get = (ADL_ADAPTER_ADAPTERINFO_GET)
    170         dlsym(libadl_handle,"ADL_Adapter_AdapterInfo_Get");
    171     if (dlerror() || !ADL_Adapter_AdapterInfo_Get)
    172         goto end;
    173 
    174     ADL_Adapter_XScreenInfo_Get = (ADL_ADAPTER_XSCREENINFO_GET)
    175         dlsym(libadl_handle,"ADL_Adapter_XScreenInfo_Get");
    176     if (dlerror() || !ADL_Adapter_XScreenInfo_Get)
    177         goto end;
    178 
    179     if (ADL_Main_Control_Create(ADL_Main_Memory_Alloc, 1) != ADL_OK)
    180         goto end;
    181     is_adl_initialized = 1;
    182 
    183     if (ADL_Adapter_NumberOfAdapters_Get(&num_adapters) != ADL_OK)
    184         goto end;
    185     if (num_adapters <= 0)
    186         goto end;
    187 
    188     lpAdapterInfo_size = num_adapters * sizeof(*lpAdapterInfo);
    189     lpAdapterInfo = ADL_Main_Memory_Alloc(lpAdapterInfo_size);
    190     if (!lpAdapterInfo)
    191         goto end;
    192     memset(lpAdapterInfo, 0, lpAdapterInfo_size);
    193 
    194     for (i = 0; i < num_adapters; i++)
    195         lpAdapterInfo[i].iSize = sizeof(lpAdapterInfo[i]);
    196 
    197     lpXScreenInfo_size = num_adapters * sizeof(*lpXScreenInfo);
    198     lpXScreenInfo = ADL_Main_Memory_Alloc(lpXScreenInfo_size);
    199     if (!lpXScreenInfo)
    200         goto end;
    201     memset(lpXScreenInfo, 0, lpXScreenInfo_size);
    202 
    203     if (ADL_Adapter_AdapterInfo_Get(lpAdapterInfo, lpAdapterInfo_size) != ADL_OK)
    204         goto end;
    205 
    206     if (ADL_Adapter_XScreenInfo_Get(lpXScreenInfo, lpXScreenInfo_size) != ADL_OK)
    207         goto end;
    208 
    209     for (i = 0; i < num_adapters; i++) {
    210         LPXScreenInfo const lpCurrXScreenInfo = &lpXScreenInfo[i];
    211         LPAdapterInfo const lpCurrAdapterInfo = &lpAdapterInfo[i];
    212         if (!lpCurrAdapterInfo->iPresent)
    213             continue;
    214 #if 0
    215         printf("Adapter %d:\n", i);
    216         printf("  iAdapterIndex: %d\n",    lpCurrAdapterInfo->iAdapterIndex);
    217         printf("  strUDID: '%s'\n",        lpCurrAdapterInfo->strUDID);
    218         printf("  iBusNumber: %d\n",       lpCurrAdapterInfo->iBusNumber);
    219         printf("  iDeviceNumber: %d\n",    lpCurrAdapterInfo->iDeviceNumber);
    220         printf("  iFunctionNumber: %d\n",  lpCurrAdapterInfo->iFunctionNumber);
    221         printf("  iVendorID: 0x%04x\n",    lpCurrAdapterInfo->iVendorID);
    222         printf("  strAdapterName: '%s'\n", lpCurrAdapterInfo->strAdapterName);
    223         printf("  strDisplayName: '%s'\n", lpCurrAdapterInfo->strDisplayName);
    224         printf("  iPresent: %d\n",         lpCurrAdapterInfo->iPresent);
    225         printf("  iXScreenNum: %d\n",      lpCurrXScreenInfo->iXScreenNum);
    226 #endif
    227         if (screen == lpCurrXScreenInfo->iXScreenNum &&
    228             match_display_name(dpy, lpCurrAdapterInfo->strDisplayName)) {
    229             if (clientDriverName)
    230                 *clientDriverName = strdup("fglrx");
    231             success = True;
    232             break;
    233         }
    234     }
    235 
    236 end:
    237     if (lpXScreenInfo)
    238         ADL_Main_Memory_Free(&lpXScreenInfo);
    239     if (lpAdapterInfo)
    240         ADL_Main_Memory_Free(&lpAdapterInfo);
    241     if (is_adl_initialized)
    242         ADL_Main_Control_Destroy();
    243     if (libadl_handle)
    244         dlclose(libadl_handle);
    245     return success;
    246 }
    247