xserver

vndservervendor.c (3411B)

---

 /*
  * Copyright (c) 2016, NVIDIA CORPORATION.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and/or associated documentation files (the
  * "Materials"), to deal in the Materials without restriction, including
  * without limitation the rights to use, copy, modify, merge, publish,
  * distribute, sublicense, and/or sell copies of the Materials, and to
  * permit persons to whom the Materials are furnished to do so, subject to
  * the following conditions:
  *
  * The above copyright notice and this permission notice shall be included
  * unaltered in all copies or substantial portions of the Materials.
  * Any additions, deletions, or changes to the original source files
  * must be clearly indicated in accompanying documentation.
  *
  * If only executable code is distributed, then the accompanying
  * documentation must state that "this software is based in part on the
  * work of the Khronos Group."
  *
  * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
  */
 
 #include "vndservervendor.h"
 
 struct xorg_list GlxVendorList = { &GlxVendorList, &GlxVendorList };
 
 GlxServerVendor *GlxCreateVendor(const GlxServerImports *imports)
 {
     GlxServerVendor *vendor = NULL;
 
     if (imports == NULL) {
         ErrorF("GLX: Vendor library did not provide an imports table\n");
         return NULL;
     }
 
     if (imports->extensionCloseDown == NULL
             || imports->handleRequest == NULL
             || imports->getDispatchAddress == NULL
             || imports->makeCurrent == NULL) {
         ErrorF("GLX: Vendor library is missing required callback functions.\n");
         return NULL;
     }
 
     vendor = (GlxServerVendor *) calloc(1, sizeof(GlxServerVendor));
     if (vendor == NULL) {
         ErrorF("GLX: Can't allocate vendor library.\n");
         return NULL;
     }
     memcpy(&vendor->glxvc, imports, sizeof(GlxServerImports));
 
     xorg_list_append(&vendor->entry, &GlxVendorList);
     return vendor;
 }
 
 void GlxDestroyVendor(GlxServerVendor *vendor)
 {
     if (vendor != NULL) {
         xorg_list_del(&vendor->entry);
         free(vendor);
     }
 }
 
 void GlxVendorExtensionReset(const ExtensionEntry *extEntry)
 {
     GlxServerVendor *vendor, *tempVendor;
 
     // TODO: Do we allow the driver to destroy a vendor library handle from
     // here?
     xorg_list_for_each_entry_safe(vendor, tempVendor, &GlxVendorList, entry) {
         if (vendor->glxvc.extensionCloseDown != NULL) {
             vendor->glxvc.extensionCloseDown(extEntry);
         }
     }
 
     // If the server is exiting instead of starting a new generation, then
     // free the remaining GlxServerVendor structs.
     //
     // XXX this used to be conditional on xf86ServerIsExiting, but it's
     // cleaner to just always create the vendor struct on every generation,
     // if nothing else so all ddxes get the same behavior.
     xorg_list_for_each_entry_safe(vendor, tempVendor, &GlxVendorList, entry) {
         GlxDestroyVendor(vendor);
     }
 }