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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 "sysdeps.h"
  26. #include <stdio.h>
  27. #include <stdlib.h>
  28. #include <string.h>
  29. #include <dlfcn.h>
  30. #include <X11/Xlib.h>
  31.  
  32. #define ADL_OK 0
  33. #define ADL_MAX_PATH 256
  34.  
  35. /*
  36.  * Based on public AMD Display Library (ADL) SDK:
  37.  * <http://developer.amd.com/gpu/adlsdk/Pages/default.aspx>
  38.  */
  39. typedef struct AdapterInfo {
  40.     int iSize;
  41.     int iAdapterIndex;
  42.     char strUDID[ADL_MAX_PATH];
  43.     int iBusNumber;
  44.     int iDeviceNumber;
  45.     int iFunctionNumber;
  46.     int iVendorID;
  47.     char strAdapterName[ADL_MAX_PATH];
  48.     char strDisplayName[ADL_MAX_PATH];
  49.     int iPresent;
  50.     int iXScreenNum;
  51.     int iDrvIndex;
  52.     char strXScreenConfigName[ADL_MAX_PATH];
  53. } AdapterInfo, *LPAdapterInfo;
  54.  
  55. typedef struct XScreenInfo {
  56.     int iXScreenNum;
  57.     char strXScreenConfigName[ADL_MAX_PATH];
  58. } XScreenInfo, *LPXScreenInfo;
  59.  
  60. typedef void *(*ADL_MAIN_MALLOC_CALLBACK)(int);
  61. typedef int (*ADL_MAIN_CONTROL_CREATE)(ADL_MAIN_MALLOC_CALLBACK, int);
  62. typedef int (*ADL_MAIN_CONTROL_DESTROY)(void);
  63. typedef int (*ADL_ADAPTER_NUMBEROFADAPTERS_GET)(int *);
  64. typedef int (*ADL_ADAPTER_ADAPTERINFO_GET)(LPAdapterInfo, int);
  65. typedef int (*ADL_ADAPTER_XSCREENINFO_GET)(LPXScreenInfo, int);
  66.  
  67. static void *ADL_Main_Memory_Alloc(int iSize)
  68. {
  69.     return malloc(iSize);
  70. }
  71.  
  72. static void ADL_Main_Memory_Free(void *arg)
  73. {
  74.     void ** const lpBuffer = arg;
  75.  
  76.     if (lpBuffer && *lpBuffer) {
  77.         free(*lpBuffer);
  78.         *lpBuffer = NULL;
  79.     }
  80. }
  81.  
  82. static int get_display_name_length(const char *name)
  83. {
  84.     const char *m;
  85.  
  86.     if (!name)
  87.         return 0;
  88.  
  89.     /* Strip out screen number */
  90.     m = strchr(name, ':');
  91.     if (m) {
  92.         m = strchr(m, '.');
  93.         if (m)
  94.             return m - name;
  95.     }
  96.     return strlen(name);
  97. }
  98.  
  99. static int match_display_name(Display *x11_dpy, const char *display_name)
  100. {
  101.     Display *test_dpy;
  102.     char *test_dpy_name, *x11_dpy_name;
  103.     int test_dpy_namelen, x11_dpy_namelen;
  104.     int m;
  105.  
  106.     test_dpy = XOpenDisplay(display_name);
  107.     if (!test_dpy)
  108.         return 0;
  109.  
  110.     test_dpy_name    = XDisplayString(test_dpy);
  111.     test_dpy_namelen = get_display_name_length(test_dpy_name);
  112.     x11_dpy_name     = XDisplayString(x11_dpy);
  113.     x11_dpy_namelen  = get_display_name_length(x11_dpy_name);
  114.  
  115.     m = (test_dpy_namelen == x11_dpy_namelen &&
  116.          (test_dpy_namelen == 0 ||
  117.           (test_dpy_namelen > 0 &&
  118.            strncmp(test_dpy_name, x11_dpy_name, test_dpy_namelen) == 0)));
  119.  
  120.     XCloseDisplay(test_dpy);
  121.     return m;
  122. }
  123.  
  124. Bool VA_FGLRXGetClientDriverName( Display *dpy, int screen,
  125.     int *ddxDriverMajorVersion, int *ddxDriverMinorVersion,
  126.     int *ddxDriverPatchVersion, char **clientDriverName )
  127. {
  128.     ADL_MAIN_CONTROL_CREATE          ADL_Main_Control_Create;
  129.     ADL_MAIN_CONTROL_DESTROY         ADL_Main_Control_Destroy;
  130.     ADL_ADAPTER_NUMBEROFADAPTERS_GET ADL_Adapter_NumberOfAdapters_Get;
  131.     ADL_ADAPTER_ADAPTERINFO_GET      ADL_Adapter_AdapterInfo_Get;
  132.     ADL_ADAPTER_XSCREENINFO_GET      ADL_Adapter_XScreenInfo_Get;
  133.  
  134.     LPAdapterInfo lpAdapterInfo = NULL;
  135.     LPXScreenInfo lpXScreenInfo = NULL;
  136.     void *libadl_handle = NULL;
  137.     Bool success = False;
  138.     int is_adl_initialized = 0;
  139.     int i, num_adapters, lpAdapterInfo_size, lpXScreenInfo_size;
  140.  
  141.     if (ddxDriverMajorVersion)
  142.         *ddxDriverMajorVersion = 0;
  143.     if (ddxDriverMinorVersion)
  144.         *ddxDriverMinorVersion = 0;
  145.     if (ddxDriverPatchVersion)
  146.         *ddxDriverPatchVersion = 0;
  147.     if (clientDriverName)
  148.         *clientDriverName = NULL;
  149.  
  150.     libadl_handle = dlopen("libatiadlxx.so", RTLD_LAZY|RTLD_GLOBAL);
  151.     if (!libadl_handle)
  152.         goto end;
  153.  
  154.     dlerror();
  155.     ADL_Main_Control_Create = (ADL_MAIN_CONTROL_CREATE)
  156.         dlsym(libadl_handle,"ADL_Main_Control_Create");
  157.     if (dlerror())
  158.         goto end;
  159.  
  160.     ADL_Main_Control_Destroy = (ADL_MAIN_CONTROL_DESTROY)
  161.         dlsym(libadl_handle,"ADL_Main_Control_Destroy");
  162.     if (dlerror())
  163.         goto end;
  164.  
  165.     ADL_Adapter_NumberOfAdapters_Get = (ADL_ADAPTER_NUMBEROFADAPTERS_GET)
  166.         dlsym(libadl_handle,"ADL_Adapter_NumberOfAdapters_Get");
  167.     if (dlerror())
  168.         goto end;
  169.  
  170.     ADL_Adapter_AdapterInfo_Get = (ADL_ADAPTER_ADAPTERINFO_GET)
  171.         dlsym(libadl_handle,"ADL_Adapter_AdapterInfo_Get");
  172.     if (dlerror())
  173.         goto end;
  174.  
  175.     ADL_Adapter_XScreenInfo_Get = (ADL_ADAPTER_XSCREENINFO_GET)
  176.         dlsym(libadl_handle,"ADL_Adapter_XScreenInfo_Get");
  177.     if (dlerror())
  178.         goto end;
  179.  
  180.     if (ADL_Main_Control_Create(ADL_Main_Memory_Alloc, 1) != ADL_OK)
  181.         goto end;
  182.     is_adl_initialized = 1;
  183.  
  184.     if (ADL_Adapter_NumberOfAdapters_Get(&num_adapters) != ADL_OK)
  185.         goto end;
  186.     if (num_adapters <= 0)
  187.         goto end;
  188.  
  189.     lpAdapterInfo_size = num_adapters * sizeof(*lpAdapterInfo);
  190.     lpAdapterInfo = ADL_Main_Memory_Alloc(lpAdapterInfo_size);
  191.     if (!lpAdapterInfo)
  192.         goto end;
  193.     memset(lpAdapterInfo, 0, lpAdapterInfo_size);
  194.  
  195.     for (i = 0; i < num_adapters; i++)
  196.         lpAdapterInfo[i].iSize = sizeof(lpAdapterInfo[i]);
  197.  
  198.     lpXScreenInfo_size = num_adapters * sizeof(*lpXScreenInfo);
  199.     lpXScreenInfo = ADL_Main_Memory_Alloc(lpXScreenInfo_size);
  200.     if (!lpXScreenInfo)
  201.         goto end;
  202.     memset(lpXScreenInfo, 0, lpXScreenInfo_size);
  203.  
  204.     if (ADL_Adapter_AdapterInfo_Get(lpAdapterInfo, lpAdapterInfo_size) != ADL_OK)
  205.         goto end;
  206.  
  207.     if (ADL_Adapter_XScreenInfo_Get(lpXScreenInfo, lpXScreenInfo_size) != ADL_OK)
  208.         goto end;
  209.  
  210.     for (i = 0; i < num_adapters; i++) {
  211.         LPXScreenInfo const lpCurrXScreenInfo = &lpXScreenInfo[i];
  212.         LPAdapterInfo const lpCurrAdapterInfo = &lpAdapterInfo[i];
  213.         if (!lpCurrAdapterInfo->iPresent)
  214.             continue;
  215. #if 0
  216.         printf("Adapter %d:\n", i);
  217.         printf("  iAdapterIndex: %d\n",    lpCurrAdapterInfo->iAdapterIndex);
  218.         printf("  strUDID: '%s'\n",        lpCurrAdapterInfo->strUDID);
  219.         printf("  iBusNumber: %d\n",       lpCurrAdapterInfo->iBusNumber);
  220.         printf("  iDeviceNumber: %d\n",    lpCurrAdapterInfo->iDeviceNumber);
  221.         printf("  iFunctionNumber: %d\n",  lpCurrAdapterInfo->iFunctionNumber);
  222.         printf("  iVendorID: 0x%04x\n",    lpCurrAdapterInfo->iVendorID);
  223.         printf("  strAdapterName: '%s'\n", lpCurrAdapterInfo->strAdapterName);
  224.         printf("  strDisplayName: '%s'\n", lpCurrAdapterInfo->strDisplayName);
  225.         printf("  iPresent: %d\n",         lpCurrAdapterInfo->iPresent);
  226.         printf("  iXScreenNum: %d\n",      lpCurrXScreenInfo->iXScreenNum);
  227. #endif
  228.         if (screen == lpCurrXScreenInfo->iXScreenNum &&
  229.             match_display_name(dpy, lpCurrAdapterInfo->strDisplayName)) {
  230.             if (clientDriverName)
  231.                 *clientDriverName = strdup("fglrx");
  232.             success = True;
  233.             break;
  234.         }
  235.     }
  236.  
  237. end:
  238.     if (lpXScreenInfo)
  239.         ADL_Main_Memory_Free(&lpXScreenInfo);
  240.     if (lpAdapterInfo)
  241.         ADL_Main_Memory_Free(&lpAdapterInfo);
  242.     if (is_adl_initialized)
  243.         ADL_Main_Control_Destroy();
  244.     if (libadl_handle)
  245.         dlclose(libadl_handle);
  246.     return success;
  247. }
  248.